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1275 |
phoenix |
#undef BLOCKMOVE
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#define Z_WAKE
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#undef Z_EXT_CHARS_IN_BUFFER
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static char rcsid[] =
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"$Revision: 1.1.1.1 $$Date: 2004-04-15 01:58:59 $";
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/*
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* linux/drivers/char/cyclades.c
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*
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* This file contains the driver for the Cyclades async multiport
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* serial boards.
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*
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* Initially written by Randolph Bentson <bentson@grieg.seaslug.org>.
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* Modified and maintained by Marcio Saito <marcio@cyclades.com>.
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* Currently maintained by Ivan Passos <ivan@cyclades.com>.
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*
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* For Technical support and installation problems, please send e-mail
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* to support@cyclades.com.
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*
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* Much of the design and some of the code came from serial.c
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* which was copyright (C) 1991, 1992 Linus Torvalds. It was
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* extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92,
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* and then fixed as suggested by Michael K. Johnson 12/12/92.
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*
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* This version supports shared IRQ's (only for PCI boards).
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*
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* $Log: not supported by cvs2svn $
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* Revision 2.3.2.8 2000/07/06 18:14:16 ivan
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* Fixed the PCI detection function to work properly on Alpha systems.
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* Implemented support for TIOCSERGETLSR ioctl.
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* Implemented full support for non-standard baud rates.
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*
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* Revision 2.3.2.7 2000/06/01 18:26:34 ivan
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* Request PLX I/O region, although driver doesn't use it, to avoid
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* problems with other drivers accessing it.
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* Removed count for on-board buffer characters in cy_chars_in_buffer
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* (Cyclades-Z only).
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*
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* Revision 2.3.2.6 2000/05/05 13:56:05 ivan
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* Driver now reports physical instead of virtual memory addresses.
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* Masks were added to some Cyclades-Z read accesses.
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* Implemented workaround for PLX9050 bug that would cause a system lockup
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* in certain systems, depending on the MMIO addresses allocated to the
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* board.
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* Changed the Tx interrupt programming in the CD1400 chips to boost up
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* performance (Cyclom-Y only).
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* Code is now compliant with the new module interface (module_[init|exit]).
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* Make use of the PCI helper functions to access PCI resources.
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* Did some code "housekeeping".
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*
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* Revision 2.3.2.5 2000/01/19 14:35:33 ivan
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* Fixed bug in cy_set_termios on CRTSCTS flag turnoff.
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*
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* Revision 2.3.2.4 2000/01/17 09:19:40 ivan
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* Fixed SMP locking in Cyclom-Y interrupt handler.
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*
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* Revision 2.3.2.3 1999/12/28 12:11:39 ivan
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* Added a new cyclades_card field called nports to allow the driver to
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* know the exact number of ports found by the Z firmware after its load;
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* RX buffer contention prevention logic on interrupt op mode revisited
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* (Cyclades-Z only);
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* Revisited printk's for Z debug;
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* Driver now makes sure that the constant SERIAL_XMIT_SIZE is defined;
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*
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* Revision 2.3.2.2 1999/10/01 11:27:43 ivan
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* Fixed bug in cyz_poll that would make all ports but port 0
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* unable to transmit/receive data (Cyclades-Z only);
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* Implemented logic to prevent the RX buffer from being stuck with data
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* due to a driver / firmware race condition in interrupt op mode
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* (Cyclades-Z only);
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* Fixed bug in block_til_ready logic that would lead to a system crash;
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* Revisited cy_close spinlock usage;
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*
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* Revision 2.3.2.1 1999/09/28 11:01:22 ivan
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* Revisited CONFIG_PCI conditional compilation for PCI board support;
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* Implemented TIOCGICOUNT and TIOCMIWAIT ioctl support;
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* _Major_ cleanup on the Cyclades-Z interrupt support code / logic;
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* Removed CTS handling from the driver -- this is now completely handled
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* by the firmware (Cyclades-Z only);
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* Flush RX on-board buffers on a port open (Cyclades-Z only);
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* Fixed handling of ASYNC_SPD_* TTY flags;
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* Module unload now unmaps all memory area allocated by ioremap;
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*
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* Revision 2.3.1.1 1999/07/15 16:45:53 ivan
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* Removed CY_PROC conditional compilation;
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* Implemented SMP-awareness for the driver;
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* Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
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* functions;
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* The driver now accepts memory addresses (maddr=0xMMMMM) and IRQs
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* (irq=NN) as parameters (only for ISA boards);
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* Fixed bug in set_line_char that would prevent the Cyclades-Z
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* ports from being configured at speeds above 115.2Kbps;
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* Fixed bug in cy_set_termios that would prevent XON/XOFF flow control
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* switching from working properly;
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* The driver now only prints IRQ info for the Cyclades-Z if it's
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* configured to work in interrupt mode;
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*
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* Revision 2.2.2.3 1999/06/28 11:13:29 ivan
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* Added support for interrupt mode operation for the Z cards;
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* Removed the driver inactivity control for the Z;
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* Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
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* the Z firmware is not loaded yet;
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* Replaced the "manual" Z Tx flush buffer by a call to a FW command of
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* same functionality;
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* Implemented workaround for IRQ setting loss on the PCI configuration
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* registers after a PCI bridge EEPROM reload (affects PLX9060 only);
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*
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* Revision 2.2.2.2 1999/05/14 17:18:15 ivan
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* /proc entry location changed to /proc/tty/driver/cyclades;
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* Added support to shared IRQ's (only for PCI boards);
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* Added support for Cobalt Qube2 systems;
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* IRQ [de]allocation scheme revisited;
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* BREAK implementation changed in order to make use of the 'break_ctl'
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* TTY facility;
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* Fixed typo in TTY structure field 'driver_name';
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* Included a PCI bridge reset and EEPROM reload in the board
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* initialization code (for both Y and Z series).
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*
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* Revision 2.2.2.1 1999/04/08 16:17:43 ivan
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* Fixed a bug in cy_wait_until_sent that was preventing the port to be
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* closed properly after a SIGINT;
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* Module usage counter scheme revisited;
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* Added support to the upcoming Y PCI boards (i.e., support to additional
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* PCI Device ID's).
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*
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* Revision 2.2.1.10 1999/01/20 16:14:29 ivan
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* Removed all unnecessary page-alignement operations in ioremap calls
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* (ioremap is currently safe for these operations).
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*
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* Revision 2.2.1.9 1998/12/30 18:18:30 ivan
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* Changed access to PLX PCI bridge registers from I/O to MMIO, in
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* order to make PLX9050-based boards work with certain motherboards.
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*
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* Revision 2.2.1.8 1998/11/13 12:46:20 ivan
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* cy_close function now resets (correctly) the tty->closing flag;
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* JIFFIES_DIFF macro fixed.
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*
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* Revision 2.2.1.7 1998/09/03 12:07:28 ivan
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* Fixed bug in cy_close function, which was not informing HW of
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* which port should have the reception disabled before doing so;
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* fixed Cyclom-8YoP hardware detection bug.
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*
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* Revision 2.2.1.6 1998/08/20 17:15:39 ivan
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* Fixed bug in cy_close function, which causes malfunction
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* of one of the first 4 ports when a higher port is closed
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* (Cyclom-Y only).
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*
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* Revision 2.2.1.5 1998/08/10 18:10:28 ivan
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* Fixed Cyclom-4Yo hardware detection bug.
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*
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* Revision 2.2.1.4 1998/08/04 11:02:50 ivan
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* /proc/cyclades implementation with great collaboration of
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* Marc Lewis <marc@blarg.net>;
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* cyy_interrupt was changed to avoid occurence of kernel oopses
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* during PPP operation.
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*
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* Revision 2.2.1.3 1998/06/01 12:09:10 ivan
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* General code review in order to comply with 2.1 kernel standards;
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* data loss prevention for slow devices revisited (cy_wait_until_sent
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* was created);
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* removed conditional compilation for new/old PCI structure support
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* (now the driver only supports the new PCI structure).
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*
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* Revision 2.2.1.1 1998/03/19 16:43:12 ivan
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* added conditional compilation for new/old PCI structure support;
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* removed kernel series (2.0.x / 2.1.x) conditional compilation.
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*
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* Revision 2.1.1.3 1998/03/16 18:01:12 ivan
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* cleaned up the data loss fix;
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* fixed XON/XOFF handling once more (Cyclades-Z);
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* general review of the driver routines;
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* introduction of a mechanism to prevent data loss with slow
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* printers, by forcing a delay before closing the port.
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*
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* Revision 2.1.1.2 1998/02/17 16:50:00 ivan
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* fixed detection/handling of new CD1400 in Ye boards;
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* fixed XON/XOFF handling (Cyclades-Z);
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* fixed data loss caused by a premature port close;
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* introduction of a flag that holds the CD1400 version ID per port
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* (used by the CYGETCD1400VER new ioctl).
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*
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* Revision 2.1.1.1 1997/12/03 17:31:19 ivan
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* Code review for the module cleanup routine;
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* fixed RTS and DTR status report for new CD1400's in get_modem_info;
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* includes anonymous changes regarding signal_pending.
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*
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* Revision 2.1 1997/11/01 17:42:41 ivan
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* Changes in the driver to support Alpha systems (except 8Zo V_1);
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189 |
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* BREAK fix for the Cyclades-Z boards;
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190 |
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* driver inactivity control by FW implemented;
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191 |
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* introduction of flag that allows driver to take advantage of
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192 |
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* a special CD1400 feature related to HW flow control;
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193 |
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* added support for the CD1400 rev. J (Cyclom-Y boards);
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194 |
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* introduction of ioctls to:
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* - control the rtsdtr_inv flag (Cyclom-Y);
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196 |
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* - control the rflow flag (Cyclom-Y);
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197 |
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* - adjust the polling interval (Cyclades-Z);
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*
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* Revision 1.36.4.33 1997/06/27 19:00:00 ivan
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* Fixes related to kernel version conditional
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* compilation.
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*
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* Revision 1.36.4.32 1997/06/14 19:30:00 ivan
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* Compatibility issues between kernels 2.0.x and
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* 2.1.x (mainly related to clear_bit function).
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*
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* Revision 1.36.4.31 1997/06/03 15:30:00 ivan
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* Changes to define the memory window according to the
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209 |
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* board type.
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*
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* Revision 1.36.4.30 1997/05/16 15:30:00 daniel
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* Changes to support new cycladesZ boards.
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*
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* Revision 1.36.4.29 1997/05/12 11:30:00 daniel
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* Merge of Bentson's and Daniel's version 1.36.4.28.
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216 |
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* Corrects bug in cy_detect_pci: check if there are more
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217 |
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* ports than the number of static structs allocated.
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218 |
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* Warning message during initialization if this driver is
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219 |
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* used with the new generation of cycladesZ boards. Those
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* will be supported only in next release of the driver.
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* Corrects bug in cy_detect_pci and cy_detect_isa that
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222 |
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* returned wrong number of VALID boards, when a cyclomY
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223 |
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* was found with no serial modules connected.
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224 |
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* Changes to use current (2.1.x) kernel subroutine names
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225 |
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* and created macros for compilation with 2.0.x kernel,
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* instead of the other way around.
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*
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* Revision 1.36.4.28 1997/05/?? ??:00:00 bentson
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* Change queue_task_irq_off to queue_task_irq.
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230 |
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* The inline function queue_task_irq_off (tqueue.h)
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231 |
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* was removed from latest releases of 2.1.x kernel.
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232 |
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* Use of macro __init to mark the initialization
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233 |
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* routines, so memory can be reused.
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234 |
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* Also incorporate implementation of critical region
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235 |
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* in function cleanup_module() created by anonymous
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236 |
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* linuxer.
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*
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* Revision 1.36.4.28 1997/04/25 16:00:00 daniel
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* Change to support new firmware that solves DCD problem:
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240 |
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* application could fail to receive SIGHUP signal when DCD
|
241 |
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* varying too fast.
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*
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* Revision 1.36.4.27 1997/03/26 10:30:00 daniel
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* Changed for support linux versions 2.1.X.
|
245 |
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* Backward compatible with linux versions 2.0.X.
|
246 |
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* Corrected illegal use of filler field in
|
247 |
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* CH_CTRL struct.
|
248 |
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* Deleted some debug messages.
|
249 |
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*
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250 |
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* Revision 1.36.4.26 1997/02/27 12:00:00 daniel
|
251 |
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* Included check for NULL tty pointer in cyz_poll.
|
252 |
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*
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253 |
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* Revision 1.36.4.25 1997/02/26 16:28:30 bentson
|
254 |
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* Bill Foster at Blarg! Online services noticed that
|
255 |
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* some of the switch elements of -Z modem control
|
256 |
|
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* lacked a closing "break;"
|
257 |
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*
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* Revision 1.36.4.24 1997/02/24 11:00:00 daniel
|
259 |
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* Changed low water threshold for buffer xmit_buf
|
260 |
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*
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261 |
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* Revision 1.36.4.23 1996/12/02 21:50:16 bentson
|
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* Marcio provided fix to modem status fetch for -Z
|
263 |
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*
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264 |
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* Revision 1.36.4.22 1996/10/28 22:41:17 bentson
|
265 |
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* improve mapping of -Z control page (thanks to Steve
|
266 |
|
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* Price <stevep@fa.tdktca.com> for help on this)
|
267 |
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*
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* Revision 1.36.4.21 1996/09/10 17:00:10 bentson
|
269 |
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* shift from CPU-bound to memcopy in cyz_polling operation
|
270 |
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*
|
271 |
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* Revision 1.36.4.20 1996/09/09 18:30:32 Bentson
|
272 |
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* Added support to set and report higher speeds.
|
273 |
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*
|
274 |
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* Revision 1.36.4.19c 1996/08/09 10:00:00 Marcio Saito
|
275 |
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* Some fixes in the HW flow control for the BETA release.
|
276 |
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* Don't try to register the IRQ.
|
277 |
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*
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278 |
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* Revision 1.36.4.19 1996/08/08 16:23:18 Bentson
|
279 |
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* make sure "cyc" appears in all kernel messages; all soft interrupts
|
280 |
|
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* handled by same routine; recognize out-of-band reception; comment
|
281 |
|
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* out some diagnostic messages; leave RTS/CTS flow control to hardware;
|
282 |
|
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* fix race condition in -Z buffer management; only -Y needs to explictly
|
283 |
|
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* flush chars; tidy up some startup messages;
|
284 |
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*
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285 |
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* Revision 1.36.4.18 1996/07/25 18:57:31 bentson
|
286 |
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* shift MOD_INC_USE_COUNT location to match
|
287 |
|
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* serial.c; purge some diagnostic messages;
|
288 |
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*
|
289 |
|
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* Revision 1.36.4.17 1996/07/25 18:01:08 bentson
|
290 |
|
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* enable modem status messages and fetch & process them; note
|
291 |
|
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* time of last activity type for each port; set_line_char now
|
292 |
|
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* supports more than line 0 and treats 0 baud correctly;
|
293 |
|
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* get_modem_info senses rs_status;
|
294 |
|
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*
|
295 |
|
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* Revision 1.36.4.16 1996/07/20 08:43:15 bentson
|
296 |
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* barely works--now's time to turn on
|
297 |
|
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* more features 'til it breaks
|
298 |
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*
|
299 |
|
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* Revision 1.36.4.15 1996/07/19 22:30:06 bentson
|
300 |
|
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* check more -Z board status; shorten boot message
|
301 |
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*
|
302 |
|
|
* Revision 1.36.4.14 1996/07/19 22:20:37 bentson
|
303 |
|
|
* fix reference to ch_ctrl in startup; verify return
|
304 |
|
|
* values from cyz_issue_cmd and cyz_update_channel;
|
305 |
|
|
* more stuff to get modem control correct;
|
306 |
|
|
*
|
307 |
|
|
* Revision 1.36.4.13 1996/07/11 19:53:33 bentson
|
308 |
|
|
* more -Z stuff folded in; re-order changes to put -Z stuff
|
309 |
|
|
* after -Y stuff (to make changes clearer)
|
310 |
|
|
*
|
311 |
|
|
* Revision 1.36.4.12 1996/07/11 15:40:55 bentson
|
312 |
|
|
* Add code to poll Cyclades-Z. Add code to get & set RS-232 control.
|
313 |
|
|
* Add code to send break. Clear firmware ID word at startup (so
|
314 |
|
|
* that other code won't talk to inactive board).
|
315 |
|
|
*
|
316 |
|
|
* Revision 1.36.4.11 1996/07/09 05:28:29 bentson
|
317 |
|
|
* add code for -Z in set_line_char
|
318 |
|
|
*
|
319 |
|
|
* Revision 1.36.4.10 1996/07/08 19:28:37 bentson
|
320 |
|
|
* fold more -Z stuff (or in some cases, error messages)
|
321 |
|
|
* into driver; add text to "don't know what to do" messages.
|
322 |
|
|
*
|
323 |
|
|
* Revision 1.36.4.9 1996/07/08 18:38:38 bentson
|
324 |
|
|
* moved compile-time flags near top of file; cosmetic changes
|
325 |
|
|
* to narrow text (to allow 2-up printing); changed many declarations
|
326 |
|
|
* to "static" to limit external symbols; shuffled code order to
|
327 |
|
|
* coalesce -Y and -Z specific code, also to put internal functions
|
328 |
|
|
* in order of tty_driver structure; added code to recognize -Z
|
329 |
|
|
* ports (and for moment, do nothing or report error); add cy_startup
|
330 |
|
|
* to parse boot command line for extra base addresses for ISA probes;
|
331 |
|
|
*
|
332 |
|
|
* Revision 1.36.4.8 1996/06/25 17:40:19 bentson
|
333 |
|
|
* reorder some code, fix types of some vars (int vs. long),
|
334 |
|
|
* add cy_setup to support user declared ISA addresses
|
335 |
|
|
*
|
336 |
|
|
* Revision 1.36.4.7 1996/06/21 23:06:18 bentson
|
337 |
|
|
* dump ioctl based firmware load (it's now a user level
|
338 |
|
|
* program); ensure uninitialzed ports cannot be used
|
339 |
|
|
*
|
340 |
|
|
* Revision 1.36.4.6 1996/06/20 23:17:19 bentson
|
341 |
|
|
* rename vars and restructure some code
|
342 |
|
|
*
|
343 |
|
|
* Revision 1.36.4.5 1996/06/14 15:09:44 bentson
|
344 |
|
|
* get right status back after boot load
|
345 |
|
|
*
|
346 |
|
|
* Revision 1.36.4.4 1996/06/13 19:51:44 bentson
|
347 |
|
|
* successfully loads firmware
|
348 |
|
|
*
|
349 |
|
|
* Revision 1.36.4.3 1996/06/13 06:08:33 bentson
|
350 |
|
|
* add more of the code for the boot/load ioctls
|
351 |
|
|
*
|
352 |
|
|
* Revision 1.36.4.2 1996/06/11 21:00:51 bentson
|
353 |
|
|
* start to add Z functionality--starting with ioctl
|
354 |
|
|
* for loading firmware
|
355 |
|
|
*
|
356 |
|
|
* Revision 1.36.4.1 1996/06/10 18:03:02 bentson
|
357 |
|
|
* added code to recognize Z/PCI card at initialization; report
|
358 |
|
|
* presence, but card is not initialized (because firmware needs
|
359 |
|
|
* to be loaded)
|
360 |
|
|
*
|
361 |
|
|
* Revision 1.36.3.8 1996/06/07 16:29:00 bentson
|
362 |
|
|
* starting minor number at zero; added missing verify_area
|
363 |
|
|
* as noted by Heiko Eissfeldt <heiko@colossus.escape.de>
|
364 |
|
|
*
|
365 |
|
|
* Revision 1.36.3.7 1996/04/19 21:06:18 bentson
|
366 |
|
|
* remove unneeded boot message & fix CLOCAL hardware flow
|
367 |
|
|
* control (Miquel van Smoorenburg <miquels@Q.cistron.nl>);
|
368 |
|
|
* remove unused diagnostic statements; minor 0 is first;
|
369 |
|
|
*
|
370 |
|
|
* Revision 1.36.3.6 1996/03/13 13:21:17 marcio
|
371 |
|
|
* The kernel function vremap (available only in later 1.3.xx kernels)
|
372 |
|
|
* allows the access to memory addresses above the RAM. This revision
|
373 |
|
|
* of the driver supports PCI boards below 1Mb (device id 0x100) and
|
374 |
|
|
* above 1Mb (device id 0x101).
|
375 |
|
|
*
|
376 |
|
|
* Revision 1.36.3.5 1996/03/07 15:20:17 bentson
|
377 |
|
|
* Some global changes to interrupt handling spilled into
|
378 |
|
|
* this driver--mostly unused arguments in system function
|
379 |
|
|
* calls. Also added change by Marcio Saito which should
|
380 |
|
|
* reduce lost interrupts at startup by fast processors.
|
381 |
|
|
*
|
382 |
|
|
* Revision 1.36.3.4 1995/11/13 20:45:10 bentson
|
383 |
|
|
* Changes by Corey Minyard <minyard@wf-rch.cirr.com> distributed
|
384 |
|
|
* in 1.3.41 kernel to remove a possible race condition, extend
|
385 |
|
|
* some error messages, and let the driver run as a loadable module
|
386 |
|
|
* Change by Alan Wendt <alan@ez0.ezlink.com> to remove a
|
387 |
|
|
* possible race condition.
|
388 |
|
|
* Change by Marcio Saito <marcio@cyclades.com> to fix PCI addressing.
|
389 |
|
|
*
|
390 |
|
|
* Revision 1.36.3.3 1995/11/13 19:44:48 bentson
|
391 |
|
|
* Changes by Linus Torvalds in 1.3.33 kernel distribution
|
392 |
|
|
* required due to reordering of driver initialization.
|
393 |
|
|
* Drivers are now initialized *after* memory management.
|
394 |
|
|
*
|
395 |
|
|
* Revision 1.36.3.2 1995/09/08 22:07:14 bentson
|
396 |
|
|
* remove printk from ISR; fix typo
|
397 |
|
|
*
|
398 |
|
|
* Revision 1.36.3.1 1995/09/01 12:00:42 marcio
|
399 |
|
|
* Minor fixes in the PCI board support. PCI function calls in
|
400 |
|
|
* conditional compilation (CONFIG_PCI). Thanks to Jim Duncan
|
401 |
|
|
* <duncan@okay.com>. "bad serial count" message removed.
|
402 |
|
|
*
|
403 |
|
|
* Revision 1.36.3 1995/08/22 09:19:42 marcio
|
404 |
|
|
* Cyclom-Y/PCI support added. Changes in the cy_init routine and
|
405 |
|
|
* board initialization. Changes in the boot messages. The driver
|
406 |
|
|
* supports up to 4 boards and 64 ports by default.
|
407 |
|
|
*
|
408 |
|
|
* Revision 1.36.1.4 1995/03/29 06:14:14 bentson
|
409 |
|
|
* disambiguate between Cyclom-16Y and Cyclom-32Ye;
|
410 |
|
|
*
|
411 |
|
|
* Revision 1.36.1.3 1995/03/23 22:15:35 bentson
|
412 |
|
|
* add missing break in modem control block in ioctl switch statement
|
413 |
|
|
* (discovered by Michael Edward Chastain <mec@jobe.shell.portal.com>);
|
414 |
|
|
*
|
415 |
|
|
* Revision 1.36.1.2 1995/03/22 19:16:22 bentson
|
416 |
|
|
* make sure CTS flow control is set as soon as possible (thanks
|
417 |
|
|
* to note from David Lambert <lambert@chesapeake.rps.slb.com>);
|
418 |
|
|
*
|
419 |
|
|
* Revision 1.36.1.1 1995/03/13 15:44:43 bentson
|
420 |
|
|
* initialize defaults for receive threshold and stale data timeout;
|
421 |
|
|
* cosmetic changes;
|
422 |
|
|
*
|
423 |
|
|
* Revision 1.36 1995/03/10 23:33:53 bentson
|
424 |
|
|
* added support of chips 4-7 in 32 port Cyclom-Ye;
|
425 |
|
|
* fix cy_interrupt pointer dereference problem
|
426 |
|
|
* (Joe Portman <baron@aa.net>);
|
427 |
|
|
* give better error response if open is attempted on non-existent port
|
428 |
|
|
* (Zachariah Vaum <jchryslr@netcom.com>);
|
429 |
|
|
* correct command timeout (Kenneth Lerman <lerman@@seltd.newnet.com>);
|
430 |
|
|
* conditional compilation for -16Y on systems with fast, noisy bus;
|
431 |
|
|
* comment out diagnostic print function;
|
432 |
|
|
* cleaned up table of base addresses;
|
433 |
|
|
* set receiver time-out period register to correct value,
|
434 |
|
|
* set receive threshold to better default values,
|
435 |
|
|
* set chip timer to more accurate 200 Hz ticking,
|
436 |
|
|
* add code to monitor and modify receive parameters
|
437 |
|
|
* (Rik Faith <faith@cs.unc.edu> Nick Simicich
|
438 |
|
|
* <njs@scifi.emi.net>);
|
439 |
|
|
*
|
440 |
|
|
* Revision 1.35 1994/12/16 13:54:18 steffen
|
441 |
|
|
* additional patch by Marcio Saito for board detection
|
442 |
|
|
* Accidently left out in 1.34
|
443 |
|
|
*
|
444 |
|
|
* Revision 1.34 1994/12/10 12:37:12 steffen
|
445 |
|
|
* This is the corrected version as suggested by Marcio Saito
|
446 |
|
|
*
|
447 |
|
|
* Revision 1.33 1994/12/01 22:41:18 bentson
|
448 |
|
|
* add hooks to support more high speeds directly; add tytso
|
449 |
|
|
* patch regarding CLOCAL wakeups
|
450 |
|
|
*
|
451 |
|
|
* Revision 1.32 1994/11/23 19:50:04 bentson
|
452 |
|
|
* allow direct kernel control of higher signalling rates;
|
453 |
|
|
* look for cards at additional locations
|
454 |
|
|
*
|
455 |
|
|
* Revision 1.31 1994/11/16 04:33:28 bentson
|
456 |
|
|
* ANOTHER fix from Corey Minyard, minyard@wf-rch.cirr.com--
|
457 |
|
|
* a problem in chars_in_buffer has been resolved by some
|
458 |
|
|
* small changes; this should yield smoother output
|
459 |
|
|
*
|
460 |
|
|
* Revision 1.30 1994/11/16 04:28:05 bentson
|
461 |
|
|
* Fix from Corey Minyard, Internet: minyard@metronet.com,
|
462 |
|
|
* UUCP: minyard@wf-rch.cirr.com, WORK: minyardbnr.ca, to
|
463 |
|
|
* cy_hangup that appears to clear up much (all?) of the
|
464 |
|
|
* DTR glitches; also he's added/cleaned-up diagnostic messages
|
465 |
|
|
*
|
466 |
|
|
* Revision 1.29 1994/11/16 04:16:07 bentson
|
467 |
|
|
* add change proposed by Ralph Sims, ralphs@halcyon.com, to
|
468 |
|
|
* operate higher speeds in same way as other serial ports;
|
469 |
|
|
* add more serial ports (for up to two 16-port muxes).
|
470 |
|
|
*
|
471 |
|
|
* Revision 1.28 1994/11/04 00:13:16 root
|
472 |
|
|
* turn off diagnostic messages
|
473 |
|
|
*
|
474 |
|
|
* Revision 1.27 1994/11/03 23:46:37 root
|
475 |
|
|
* bunch of changes to bring driver into greater conformance
|
476 |
|
|
* with the serial.c driver (looking for missed fixes)
|
477 |
|
|
*
|
478 |
|
|
* Revision 1.26 1994/11/03 22:40:36 root
|
479 |
|
|
* automatic interrupt probing fixed.
|
480 |
|
|
*
|
481 |
|
|
* Revision 1.25 1994/11/03 20:17:02 root
|
482 |
|
|
* start to implement auto-irq
|
483 |
|
|
*
|
484 |
|
|
* Revision 1.24 1994/11/03 18:01:55 root
|
485 |
|
|
* still working on modem signals--trying not to drop DTR
|
486 |
|
|
* during the getty/login processes
|
487 |
|
|
*
|
488 |
|
|
* Revision 1.23 1994/11/03 17:51:36 root
|
489 |
|
|
* extend baud rate support; set receive threshold as function
|
490 |
|
|
* of baud rate; fix some problems with RTS/CTS;
|
491 |
|
|
*
|
492 |
|
|
* Revision 1.22 1994/11/02 18:05:35 root
|
493 |
|
|
* changed arguments to udelay to type long to get
|
494 |
|
|
* delays to be of correct duration
|
495 |
|
|
*
|
496 |
|
|
* Revision 1.21 1994/11/02 17:37:30 root
|
497 |
|
|
* employ udelay (after calibrating loops_per_second earlier
|
498 |
|
|
* in init/main.c) instead of using home-grown delay routines
|
499 |
|
|
*
|
500 |
|
|
* Revision 1.20 1994/11/02 03:11:38 root
|
501 |
|
|
* cy_chars_in_buffer forces a return value of 0 to let
|
502 |
|
|
* login work (don't know why it does); some functions
|
503 |
|
|
* that were returning EFAULT, now executes the code;
|
504 |
|
|
* more work on deciding when to disable xmit interrupts;
|
505 |
|
|
*
|
506 |
|
|
* Revision 1.19 1994/11/01 20:10:14 root
|
507 |
|
|
* define routine to start transmission interrupts (by enabling
|
508 |
|
|
* transmit interrupts); directly enable/disable modem interrupts;
|
509 |
|
|
*
|
510 |
|
|
* Revision 1.18 1994/11/01 18:40:45 bentson
|
511 |
|
|
* Don't always enable transmit interrupts in startup; interrupt on
|
512 |
|
|
* TxMpty instead of TxRdy to help characters get out before shutdown;
|
513 |
|
|
* restructure xmit interrupt to check for chars first and quit if
|
514 |
|
|
* none are ready to go; modem status (MXVRx) is upright, _not_ inverted
|
515 |
|
|
* (to my view);
|
516 |
|
|
*
|
517 |
|
|
* Revision 1.17 1994/10/30 04:39:45 bentson
|
518 |
|
|
* rename serial_driver and callout_driver to cy_serial_driver and
|
519 |
|
|
* cy_callout_driver to avoid linkage interference; initialize
|
520 |
|
|
* info->type to PORT_CIRRUS; ruggedize paranoia test; elide ->port
|
521 |
|
|
* from cyclades_port structure; add paranoia check to cy_close;
|
522 |
|
|
*
|
523 |
|
|
* Revision 1.16 1994/10/30 01:14:33 bentson
|
524 |
|
|
* change major numbers; add some _early_ return statements;
|
525 |
|
|
*
|
526 |
|
|
* Revision 1.15 1994/10/29 06:43:15 bentson
|
527 |
|
|
* final tidying up for clean compile; enable some error reporting
|
528 |
|
|
*
|
529 |
|
|
* Revision 1.14 1994/10/28 20:30:22 Bentson
|
530 |
|
|
* lots of changes to drag the driver towards the new tty_io
|
531 |
|
|
* structures and operation. not expected to work, but may
|
532 |
|
|
* compile cleanly.
|
533 |
|
|
*
|
534 |
|
|
* Revision 1.13 1994/07/21 23:08:57 Bentson
|
535 |
|
|
* add some diagnostic cruft; support 24 lines (for testing
|
536 |
|
|
* both -8Y and -16Y cards; be more thorough in servicing all
|
537 |
|
|
* chips during interrupt; add "volatile" a few places to
|
538 |
|
|
* circumvent compiler optimizations; fix base & offset
|
539 |
|
|
* computations in block_til_ready (was causing chip 0 to
|
540 |
|
|
* stop operation)
|
541 |
|
|
*
|
542 |
|
|
* Revision 1.12 1994/07/19 16:42:11 Bentson
|
543 |
|
|
* add some hackery for kernel version 1.1.8; expand
|
544 |
|
|
* error messages; refine timing for delay loops and
|
545 |
|
|
* declare loop params volatile
|
546 |
|
|
*
|
547 |
|
|
* Revision 1.11 1994/06/11 21:53:10 bentson
|
548 |
|
|
* get use of save_car right in transmit interrupt service
|
549 |
|
|
*
|
550 |
|
|
* Revision 1.10.1.1 1994/06/11 21:31:18 bentson
|
551 |
|
|
* add some diagnostic printing; try to fix save_car stuff
|
552 |
|
|
*
|
553 |
|
|
* Revision 1.10 1994/06/11 20:36:08 bentson
|
554 |
|
|
* clean up compiler warnings
|
555 |
|
|
*
|
556 |
|
|
* Revision 1.9 1994/06/11 19:42:46 bentson
|
557 |
|
|
* added a bunch of code to support modem signalling
|
558 |
|
|
*
|
559 |
|
|
* Revision 1.8 1994/06/11 17:57:07 bentson
|
560 |
|
|
* recognize break & parity error
|
561 |
|
|
*
|
562 |
|
|
* Revision 1.7 1994/06/05 05:51:34 bentson
|
563 |
|
|
* Reorder baud table to be monotonic; add cli to CP; discard
|
564 |
|
|
* incoming characters and status if the line isn't open; start to
|
565 |
|
|
* fold code into cy_throttle; start to port get_serial_info,
|
566 |
|
|
* set_serial_info, get_modem_info, set_modem_info, and send_break
|
567 |
|
|
* from serial.c; expand cy_ioctl; relocate and expand config_setup;
|
568 |
|
|
* get flow control characters from tty struct; invalidate ports w/o
|
569 |
|
|
* hardware;
|
570 |
|
|
*
|
571 |
|
|
* Revision 1.6 1994/05/31 18:42:21 bentson
|
572 |
|
|
* add a loop-breaker in the interrupt service routine;
|
573 |
|
|
* note when port is initialized so that it can be shut
|
574 |
|
|
* down under the right conditions; receive works without
|
575 |
|
|
* any obvious errors
|
576 |
|
|
*
|
577 |
|
|
* Revision 1.5 1994/05/30 00:55:02 bentson
|
578 |
|
|
* transmit works without obvious errors
|
579 |
|
|
*
|
580 |
|
|
* Revision 1.4 1994/05/27 18:46:27 bentson
|
581 |
|
|
* incorporated more code from lib_y.c; can now print short
|
582 |
|
|
* strings under interrupt control to port zero; seems to
|
583 |
|
|
* select ports/channels/lines correctly
|
584 |
|
|
*
|
585 |
|
|
* Revision 1.3 1994/05/25 22:12:44 bentson
|
586 |
|
|
* shifting from multi-port on a card to proper multiplexor
|
587 |
|
|
* data structures; added skeletons of most routines
|
588 |
|
|
*
|
589 |
|
|
* Revision 1.2 1994/05/19 13:21:43 bentson
|
590 |
|
|
* start to crib from other sources
|
591 |
|
|
*
|
592 |
|
|
*/
|
593 |
|
|
|
594 |
|
|
/* If you need to install more boards than NR_CARDS, change the constant
|
595 |
|
|
in the definition below. No other change is necessary to support up to
|
596 |
|
|
eight boards. Beyond that you'll have to extend cy_isa_addresses. */
|
597 |
|
|
|
598 |
|
|
#define NR_CARDS 4
|
599 |
|
|
|
600 |
|
|
/*
|
601 |
|
|
If the total number of ports is larger than NR_PORTS, change this
|
602 |
|
|
constant in the definition below. No other change is necessary to
|
603 |
|
|
support more boards/ports. */
|
604 |
|
|
|
605 |
|
|
#define NR_PORTS 256
|
606 |
|
|
|
607 |
|
|
#define ZE_V1_NPORTS 64
|
608 |
|
|
#define ZO_V1 0
|
609 |
|
|
#define ZO_V2 1
|
610 |
|
|
#define ZE_V1 2
|
611 |
|
|
|
612 |
|
|
#define SERIAL_PARANOIA_CHECK
|
613 |
|
|
#undef CY_DEBUG_OPEN
|
614 |
|
|
#undef CY_DEBUG_THROTTLE
|
615 |
|
|
#undef CY_DEBUG_OTHER
|
616 |
|
|
#undef CY_DEBUG_IO
|
617 |
|
|
#undef CY_DEBUG_COUNT
|
618 |
|
|
#undef CY_DEBUG_DTR
|
619 |
|
|
#undef CY_DEBUG_WAIT_UNTIL_SENT
|
620 |
|
|
#undef CY_DEBUG_INTERRUPTS
|
621 |
|
|
#undef CY_16Y_HACK
|
622 |
|
|
#undef CY_ENABLE_MONITORING
|
623 |
|
|
#undef CY_PCI_DEBUG
|
624 |
|
|
|
625 |
|
|
#if 0
|
626 |
|
|
#define PAUSE __asm__("nop");
|
627 |
|
|
#else
|
628 |
|
|
#define PAUSE ;
|
629 |
|
|
#endif
|
630 |
|
|
|
631 |
|
|
/*
|
632 |
|
|
* Include section
|
633 |
|
|
*/
|
634 |
|
|
#include <linux/config.h>
|
635 |
|
|
#include <linux/module.h>
|
636 |
|
|
#include <linux/errno.h>
|
637 |
|
|
#include <linux/signal.h>
|
638 |
|
|
#include <linux/sched.h>
|
639 |
|
|
#include <linux/timer.h>
|
640 |
|
|
#include <linux/interrupt.h>
|
641 |
|
|
#include <linux/tty.h>
|
642 |
|
|
#include <linux/serial.h>
|
643 |
|
|
#include <linux/major.h>
|
644 |
|
|
#include <linux/string.h>
|
645 |
|
|
#include <linux/fcntl.h>
|
646 |
|
|
#include <linux/ptrace.h>
|
647 |
|
|
#include <linux/cyclades.h>
|
648 |
|
|
#include <linux/mm.h>
|
649 |
|
|
#include <linux/ioport.h>
|
650 |
|
|
#include <linux/init.h>
|
651 |
|
|
#include <linux/delay.h>
|
652 |
|
|
#include <linux/spinlock.h>
|
653 |
|
|
|
654 |
|
|
#include <asm/system.h>
|
655 |
|
|
#include <asm/io.h>
|
656 |
|
|
#include <asm/irq.h>
|
657 |
|
|
#include <asm/uaccess.h>
|
658 |
|
|
#include <asm/bitops.h>
|
659 |
|
|
|
660 |
|
|
#define CY_LOCK(info,flags) \
|
661 |
|
|
do { \
|
662 |
|
|
spin_lock_irqsave(&cy_card[info->card].card_lock, flags); \
|
663 |
|
|
} while (0)
|
664 |
|
|
|
665 |
|
|
#define CY_UNLOCK(info,flags) \
|
666 |
|
|
do { \
|
667 |
|
|
spin_unlock_irqrestore(&cy_card[info->card].card_lock, flags); \
|
668 |
|
|
} while (0)
|
669 |
|
|
|
670 |
|
|
#include <linux/types.h>
|
671 |
|
|
#include <linux/kernel.h>
|
672 |
|
|
#include <linux/pci.h>
|
673 |
|
|
#include <linux/version.h>
|
674 |
|
|
|
675 |
|
|
#include <linux/stat.h>
|
676 |
|
|
#include <linux/proc_fs.h>
|
677 |
|
|
|
678 |
|
|
#define cy_put_user put_user
|
679 |
|
|
|
680 |
|
|
static unsigned long
|
681 |
|
|
cy_get_user(unsigned long *addr)
|
682 |
|
|
{
|
683 |
|
|
unsigned long result = 0;
|
684 |
|
|
int error = get_user (result, addr);
|
685 |
|
|
if (error)
|
686 |
|
|
printk ("cyclades: cy_get_user: error == %d\n", error);
|
687 |
|
|
return result;
|
688 |
|
|
}
|
689 |
|
|
|
690 |
|
|
#ifndef MIN
|
691 |
|
|
#define MIN(a,b) ((a) < (b) ? (a) : (b))
|
692 |
|
|
#endif
|
693 |
|
|
|
694 |
|
|
#define IS_CYC_Z(card) ((card).num_chips == -1)
|
695 |
|
|
|
696 |
|
|
#define Z_FPGA_CHECK(card) \
|
697 |
|
|
((cy_readl(&((struct RUNTIME_9060 *) \
|
698 |
|
|
((card).ctl_addr))->init_ctrl) & (1<<17)) != 0)
|
699 |
|
|
|
700 |
|
|
#define ISZLOADED(card) (((ZO_V1==cy_readl(&((struct RUNTIME_9060 *) \
|
701 |
|
|
((card).ctl_addr))->mail_box_0)) || \
|
702 |
|
|
Z_FPGA_CHECK(card)) && \
|
703 |
|
|
(ZFIRM_ID==cy_readl(&((struct FIRM_ID *) \
|
704 |
|
|
((card).base_addr+ID_ADDRESS))->signature)))
|
705 |
|
|
|
706 |
|
|
#ifndef SERIAL_XMIT_SIZE
|
707 |
|
|
#define SERIAL_XMIT_SIZE (MIN(PAGE_SIZE, 4096))
|
708 |
|
|
#endif
|
709 |
|
|
#define WAKEUP_CHARS 256
|
710 |
|
|
|
711 |
|
|
#define STD_COM_FLAGS (0)
|
712 |
|
|
|
713 |
|
|
#define JIFFIES_DIFF(n, j) ((j) - (n))
|
714 |
|
|
|
715 |
|
|
static DECLARE_TASK_QUEUE(tq_cyclades);
|
716 |
|
|
|
717 |
|
|
static struct tty_driver cy_serial_driver, cy_callout_driver;
|
718 |
|
|
static int serial_refcount;
|
719 |
|
|
|
720 |
|
|
#ifdef CONFIG_ISA
|
721 |
|
|
/* This is the address lookup table. The driver will probe for
|
722 |
|
|
Cyclom-Y/ISA boards at all addresses in here. If you want the
|
723 |
|
|
driver to probe addresses at a different address, add it to
|
724 |
|
|
this table. If the driver is probing some other board and
|
725 |
|
|
causing problems, remove the offending address from this table.
|
726 |
|
|
The cy_setup function extracts additional addresses from the
|
727 |
|
|
boot options line. The form is "cyclades=address,address..."
|
728 |
|
|
*/
|
729 |
|
|
|
730 |
|
|
static unsigned char *cy_isa_addresses[] = {
|
731 |
|
|
(unsigned char *) 0xD0000,
|
732 |
|
|
(unsigned char *) 0xD2000,
|
733 |
|
|
(unsigned char *) 0xD4000,
|
734 |
|
|
(unsigned char *) 0xD6000,
|
735 |
|
|
(unsigned char *) 0xD8000,
|
736 |
|
|
(unsigned char *) 0xDA000,
|
737 |
|
|
(unsigned char *) 0xDC000,
|
738 |
|
|
(unsigned char *) 0xDE000,
|
739 |
|
|
0,0,0,0,0,0,0,0
|
740 |
|
|
};
|
741 |
|
|
#define NR_ISA_ADDRS (sizeof(cy_isa_addresses)/sizeof(unsigned char*))
|
742 |
|
|
|
743 |
|
|
#ifdef MODULE
|
744 |
|
|
static long maddr[NR_CARDS] = { 0, };
|
745 |
|
|
static int irq[NR_CARDS] = { 0, };
|
746 |
|
|
|
747 |
|
|
MODULE_PARM(maddr, "1-" __MODULE_STRING(NR_CARDS) "l");
|
748 |
|
|
MODULE_PARM(irq, "1-" __MODULE_STRING(NR_CARDS) "i");
|
749 |
|
|
#endif
|
750 |
|
|
|
751 |
|
|
#endif /* CONFIG_ISA */
|
752 |
|
|
|
753 |
|
|
/* This is the per-card data structure containing address, irq, number of
|
754 |
|
|
channels, etc. This driver supports a maximum of NR_CARDS cards.
|
755 |
|
|
*/
|
756 |
|
|
static struct cyclades_card cy_card[NR_CARDS];
|
757 |
|
|
|
758 |
|
|
/* This is the per-channel data structure containing pointers, flags
|
759 |
|
|
and variables for the port. This driver supports a maximum of NR_PORTS.
|
760 |
|
|
*/
|
761 |
|
|
static struct cyclades_port cy_port[NR_PORTS];
|
762 |
|
|
|
763 |
|
|
static int cy_next_channel; /* next minor available */
|
764 |
|
|
|
765 |
|
|
static struct tty_struct *serial_table[NR_PORTS];
|
766 |
|
|
static struct termios *serial_termios[NR_PORTS];
|
767 |
|
|
static struct termios *serial_termios_locked[NR_PORTS];
|
768 |
|
|
|
769 |
|
|
/*
|
770 |
|
|
* tmp_buf is used as a temporary buffer by serial_write. We need to
|
771 |
|
|
* lock it in case the copy_from_user blocks while swapping in a page,
|
772 |
|
|
* and some other program tries to do a serial write at the same time.
|
773 |
|
|
* Since the lock will only come under contention when the system is
|
774 |
|
|
* swapping and available memory is low, it makes sense to share one
|
775 |
|
|
* buffer across all the serial ports, since it significantly saves
|
776 |
|
|
* memory if large numbers of serial ports are open. This buffer is
|
777 |
|
|
* allocated when the first cy_open occurs.
|
778 |
|
|
*/
|
779 |
|
|
static unsigned char *tmp_buf;
|
780 |
|
|
DECLARE_MUTEX(tmp_buf_sem);
|
781 |
|
|
|
782 |
|
|
/*
|
783 |
|
|
* This is used to look up the divisor speeds and the timeouts
|
784 |
|
|
* We're normally limited to 15 distinct baud rates. The extra
|
785 |
|
|
* are accessed via settings in info->flags.
|
786 |
|
|
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
|
787 |
|
|
* 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
|
788 |
|
|
* HI VHI
|
789 |
|
|
* 20
|
790 |
|
|
*/
|
791 |
|
|
static int baud_table[] = {
|
792 |
|
|
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
|
793 |
|
|
1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800,115200,150000,
|
794 |
|
|
230400, 0};
|
795 |
|
|
|
796 |
|
|
static char baud_co_25[] = { /* 25 MHz clock option table */
|
797 |
|
|
/* value => 00 01 02 03 04 */
|
798 |
|
|
/* divide by 8 32 128 512 2048 */
|
799 |
|
|
0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
|
800 |
|
|
0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
|
801 |
|
|
|
802 |
|
|
static char baud_bpr_25[] = { /* 25 MHz baud rate period table */
|
803 |
|
|
0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
|
804 |
|
|
0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15};
|
805 |
|
|
|
806 |
|
|
static char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */
|
807 |
|
|
/* value => 00 01 02 03 04 */
|
808 |
|
|
/* divide by 8 32 128 512 2048 */
|
809 |
|
|
0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03,
|
810 |
|
|
0x03, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
|
811 |
|
|
0x00};
|
812 |
|
|
|
813 |
|
|
static char baud_bpr_60[] = { /* 60 MHz baud rate period table (CD1400 J) */
|
814 |
|
|
0x00, 0x82, 0x21, 0xff, 0xdb, 0xc3, 0x92, 0x62, 0xc3, 0x62,
|
815 |
|
|
0x41, 0xc3, 0x62, 0xc3, 0x62, 0xc3, 0x82, 0x62, 0x41, 0x32,
|
816 |
|
|
0x21};
|
817 |
|
|
|
818 |
|
|
static char baud_cor3[] = { /* receive threshold */
|
819 |
|
|
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
|
820 |
|
|
0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07,
|
821 |
|
|
0x07};
|
822 |
|
|
|
823 |
|
|
/*
|
824 |
|
|
* The Cyclades driver implements HW flow control as any serial driver.
|
825 |
|
|
* The cyclades_port structure member rflow and the vector rflow_thr
|
826 |
|
|
* allows us to take advantage of a special feature in the CD1400 to avoid
|
827 |
|
|
* data loss even when the system interrupt latency is too high. These flags
|
828 |
|
|
* are to be used only with very special applications. Setting these flags
|
829 |
|
|
* requires the use of a special cable (DTR and RTS reversed). In the new
|
830 |
|
|
* CD1400-based boards (rev. 6.00 or later), there is no need for special
|
831 |
|
|
* cables.
|
832 |
|
|
*/
|
833 |
|
|
|
834 |
|
|
static char rflow_thr[] = { /* rflow threshold */
|
835 |
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
836 |
|
|
0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
|
837 |
|
|
0x0a};
|
838 |
|
|
|
839 |
|
|
/* The Cyclom-Ye has placed the sequential chips in non-sequential
|
840 |
|
|
* address order. This look-up table overcomes that problem.
|
841 |
|
|
*/
|
842 |
|
|
static int cy_chip_offset [] =
|
843 |
|
|
{ 0x0000,
|
844 |
|
|
0x0400,
|
845 |
|
|
0x0800,
|
846 |
|
|
0x0C00,
|
847 |
|
|
0x0200,
|
848 |
|
|
0x0600,
|
849 |
|
|
0x0A00,
|
850 |
|
|
0x0E00
|
851 |
|
|
};
|
852 |
|
|
|
853 |
|
|
/* PCI related definitions */
|
854 |
|
|
|
855 |
|
|
static unsigned short cy_pci_nboard;
|
856 |
|
|
static unsigned short cy_isa_nboard;
|
857 |
|
|
static unsigned short cy_nboard;
|
858 |
|
|
#ifdef CONFIG_PCI
|
859 |
|
|
static unsigned short cy_pci_dev_id[] = {
|
860 |
|
|
PCI_DEVICE_ID_CYCLOM_Y_Lo, /* PCI < 1Mb */
|
861 |
|
|
PCI_DEVICE_ID_CYCLOM_Y_Hi, /* PCI > 1Mb */
|
862 |
|
|
PCI_DEVICE_ID_CYCLOM_4Y_Lo, /* 4Y PCI < 1Mb */
|
863 |
|
|
PCI_DEVICE_ID_CYCLOM_4Y_Hi, /* 4Y PCI > 1Mb */
|
864 |
|
|
PCI_DEVICE_ID_CYCLOM_8Y_Lo, /* 8Y PCI < 1Mb */
|
865 |
|
|
PCI_DEVICE_ID_CYCLOM_8Y_Hi, /* 8Y PCI > 1Mb */
|
866 |
|
|
PCI_DEVICE_ID_CYCLOM_Z_Lo, /* Z PCI < 1Mb */
|
867 |
|
|
PCI_DEVICE_ID_CYCLOM_Z_Hi, /* Z PCI > 1Mb */
|
868 |
|
|
|
869 |
|
|
};
|
870 |
|
|
#endif
|
871 |
|
|
|
872 |
|
|
static void cy_start(struct tty_struct *);
|
873 |
|
|
static void set_line_char(struct cyclades_port *);
|
874 |
|
|
static int cyz_issue_cmd(struct cyclades_card *, uclong, ucchar, uclong);
|
875 |
|
|
#ifdef CONFIG_ISA
|
876 |
|
|
static unsigned detect_isa_irq (volatile ucchar *);
|
877 |
|
|
#endif /* CONFIG_ISA */
|
878 |
|
|
|
879 |
|
|
static int cyclades_get_proc_info(char *, char **, off_t , int , int *, void *);
|
880 |
|
|
|
881 |
|
|
#ifndef CONFIG_CYZ_INTR
|
882 |
|
|
static void cyz_poll(unsigned long);
|
883 |
|
|
|
884 |
|
|
/* The Cyclades-Z polling cycle is defined by this variable */
|
885 |
|
|
static long cyz_polling_cycle = CZ_DEF_POLL;
|
886 |
|
|
|
887 |
|
|
static int cyz_timeron = 0;
|
888 |
|
|
static struct timer_list cyz_timerlist = {
|
889 |
|
|
function: cyz_poll
|
890 |
|
|
};
|
891 |
|
|
#else /* CONFIG_CYZ_INTR */
|
892 |
|
|
static void cyz_rx_restart(unsigned long);
|
893 |
|
|
static struct timer_list cyz_rx_full_timer[NR_PORTS];
|
894 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
895 |
|
|
|
896 |
|
|
static inline int
|
897 |
|
|
serial_paranoia_check(struct cyclades_port *info,
|
898 |
|
|
kdev_t device, const char *routine)
|
899 |
|
|
{
|
900 |
|
|
#ifdef SERIAL_PARANOIA_CHECK
|
901 |
|
|
static const char *badmagic =
|
902 |
|
|
"cyc Warning: bad magic number for serial struct (%s) in %s\n";
|
903 |
|
|
static const char *badinfo =
|
904 |
|
|
"cyc Warning: null cyclades_port for (%s) in %s\n";
|
905 |
|
|
static const char *badrange =
|
906 |
|
|
"cyc Warning: cyclades_port out of range for (%s) in %s\n";
|
907 |
|
|
|
908 |
|
|
if (!info) {
|
909 |
|
|
printk(badinfo, kdevname(device), routine);
|
910 |
|
|
return 1;
|
911 |
|
|
}
|
912 |
|
|
|
913 |
|
|
if( (long)info < (long)(&cy_port[0])
|
914 |
|
|
|| (long)(&cy_port[NR_PORTS]) < (long)info ){
|
915 |
|
|
printk(badrange, kdevname(device), routine);
|
916 |
|
|
return 1;
|
917 |
|
|
}
|
918 |
|
|
|
919 |
|
|
if (info->magic != CYCLADES_MAGIC) {
|
920 |
|
|
printk(badmagic, kdevname(device), routine);
|
921 |
|
|
return 1;
|
922 |
|
|
}
|
923 |
|
|
#endif
|
924 |
|
|
return 0;
|
925 |
|
|
} /* serial_paranoia_check */
|
926 |
|
|
|
927 |
|
|
/*
|
928 |
|
|
* This routine is used by the interrupt handler to schedule
|
929 |
|
|
* processing in the software interrupt portion of the driver
|
930 |
|
|
* (also known as the "bottom half"). This can be called any
|
931 |
|
|
* number of times for any channel without harm.
|
932 |
|
|
*/
|
933 |
|
|
static inline void
|
934 |
|
|
cy_sched_event(struct cyclades_port *info, int event)
|
935 |
|
|
{
|
936 |
|
|
info->event |= 1 << event; /* remember what kind of event and who */
|
937 |
|
|
queue_task(&info->tqueue, &tq_cyclades); /* it belongs to */
|
938 |
|
|
mark_bh(CYCLADES_BH); /* then trigger event */
|
939 |
|
|
} /* cy_sched_event */
|
940 |
|
|
|
941 |
|
|
|
942 |
|
|
/*
|
943 |
|
|
* This routine is used to handle the "bottom half" processing for the
|
944 |
|
|
* serial driver, known also the "software interrupt" processing.
|
945 |
|
|
* This processing is done at the kernel interrupt level, after the
|
946 |
|
|
* cy#/_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON. This
|
947 |
|
|
* is where time-consuming activities which can not be done in the
|
948 |
|
|
* interrupt driver proper are done; the interrupt driver schedules
|
949 |
|
|
* them using cy_sched_event(), and they get done here.
|
950 |
|
|
*
|
951 |
|
|
* This is done through one level of indirection--the task queue.
|
952 |
|
|
* When a hardware interrupt service routine wants service by the
|
953 |
|
|
* driver's bottom half, it enqueues the appropriate tq_struct (one
|
954 |
|
|
* per port) to the tq_cyclades work queue and sets a request flag
|
955 |
|
|
* via mark_bh for processing that queue. When the time is right,
|
956 |
|
|
* do_cyclades_bh is called (because of the mark_bh) and it requests
|
957 |
|
|
* that the work queue be processed.
|
958 |
|
|
*
|
959 |
|
|
* Although this may seem unwieldy, it gives the system a way to
|
960 |
|
|
* pass an argument (in this case the pointer to the cyclades_port
|
961 |
|
|
* structure) to the bottom half of the driver. Previous kernels
|
962 |
|
|
* had to poll every port to see if that port needed servicing.
|
963 |
|
|
*/
|
964 |
|
|
static void
|
965 |
|
|
do_cyclades_bh(void)
|
966 |
|
|
{
|
967 |
|
|
run_task_queue(&tq_cyclades);
|
968 |
|
|
} /* do_cyclades_bh */
|
969 |
|
|
|
970 |
|
|
static void
|
971 |
|
|
do_softint(void *private_)
|
972 |
|
|
{
|
973 |
|
|
struct cyclades_port *info = (struct cyclades_port *) private_;
|
974 |
|
|
struct tty_struct *tty;
|
975 |
|
|
|
976 |
|
|
tty = info->tty;
|
977 |
|
|
if (!tty)
|
978 |
|
|
return;
|
979 |
|
|
|
980 |
|
|
if (test_and_clear_bit(Cy_EVENT_HANGUP, &info->event)) {
|
981 |
|
|
tty_hangup(info->tty);
|
982 |
|
|
wake_up_interruptible(&info->open_wait);
|
983 |
|
|
info->flags &= ~(ASYNC_NORMAL_ACTIVE|
|
984 |
|
|
ASYNC_CALLOUT_ACTIVE);
|
985 |
|
|
}
|
986 |
|
|
if (test_and_clear_bit(Cy_EVENT_OPEN_WAKEUP, &info->event)) {
|
987 |
|
|
wake_up_interruptible(&info->open_wait);
|
988 |
|
|
}
|
989 |
|
|
#ifdef CONFIG_CYZ_INTR
|
990 |
|
|
if (test_and_clear_bit(Cy_EVENT_Z_RX_FULL, &info->event)) {
|
991 |
|
|
if (cyz_rx_full_timer[info->line].function == NULL) {
|
992 |
|
|
cyz_rx_full_timer[info->line].expires = jiffies + 1;
|
993 |
|
|
cyz_rx_full_timer[info->line].function = cyz_rx_restart;
|
994 |
|
|
cyz_rx_full_timer[info->line].data = (unsigned long)info;
|
995 |
|
|
add_timer(&cyz_rx_full_timer[info->line]);
|
996 |
|
|
}
|
997 |
|
|
}
|
998 |
|
|
#endif
|
999 |
|
|
if (test_and_clear_bit(Cy_EVENT_DELTA_WAKEUP, &info->event)) {
|
1000 |
|
|
wake_up_interruptible(&info->delta_msr_wait);
|
1001 |
|
|
}
|
1002 |
|
|
if (test_and_clear_bit(Cy_EVENT_WRITE_WAKEUP, &info->event)) {
|
1003 |
|
|
if((tty->flags & (1<< TTY_DO_WRITE_WAKEUP))
|
1004 |
|
|
&& tty->ldisc.write_wakeup){
|
1005 |
|
|
(tty->ldisc.write_wakeup)(tty);
|
1006 |
|
|
}
|
1007 |
|
|
wake_up_interruptible(&tty->write_wait);
|
1008 |
|
|
}
|
1009 |
|
|
#ifdef Z_WAKE
|
1010 |
|
|
if (test_and_clear_bit(Cy_EVENT_SHUTDOWN_WAKEUP, &info->event)) {
|
1011 |
|
|
wake_up_interruptible(&info->shutdown_wait);
|
1012 |
|
|
}
|
1013 |
|
|
#endif
|
1014 |
|
|
} /* do_softint */
|
1015 |
|
|
|
1016 |
|
|
|
1017 |
|
|
/***********************************************************/
|
1018 |
|
|
/********* Start of block of Cyclom-Y specific code ********/
|
1019 |
|
|
|
1020 |
|
|
/* This routine waits up to 1000 micro-seconds for the previous
|
1021 |
|
|
command to the Cirrus chip to complete and then issues the
|
1022 |
|
|
new command. An error is returned if the previous command
|
1023 |
|
|
didn't finish within the time limit.
|
1024 |
|
|
|
1025 |
|
|
This function is only called from inside spinlock-protected code.
|
1026 |
|
|
*/
|
1027 |
|
|
static int
|
1028 |
|
|
cyy_issue_cmd(volatile ucchar *base_addr, u_char cmd, int index)
|
1029 |
|
|
{
|
1030 |
|
|
volatile int i;
|
1031 |
|
|
|
1032 |
|
|
/* Check to see that the previous command has completed */
|
1033 |
|
|
for(i = 0 ; i < 100 ; i++){
|
1034 |
|
|
if (cy_readb(base_addr+(CyCCR<<index)) == 0){
|
1035 |
|
|
break;
|
1036 |
|
|
}
|
1037 |
|
|
udelay(10L);
|
1038 |
|
|
}
|
1039 |
|
|
/* if the CCR never cleared, the previous command
|
1040 |
|
|
didn't finish within the "reasonable time" */
|
1041 |
|
|
if (i == 100) return (-1);
|
1042 |
|
|
|
1043 |
|
|
/* Issue the new command */
|
1044 |
|
|
cy_writeb((u_long)base_addr+(CyCCR<<index), cmd);
|
1045 |
|
|
|
1046 |
|
|
return(0);
|
1047 |
|
|
} /* cyy_issue_cmd */
|
1048 |
|
|
|
1049 |
|
|
#ifdef CONFIG_ISA
|
1050 |
|
|
/* ISA interrupt detection code */
|
1051 |
|
|
static unsigned
|
1052 |
|
|
detect_isa_irq (volatile ucchar *address)
|
1053 |
|
|
{
|
1054 |
|
|
int irq;
|
1055 |
|
|
unsigned long irqs, flags;
|
1056 |
|
|
int save_xir, save_car;
|
1057 |
|
|
int index = 0; /* IRQ probing is only for ISA */
|
1058 |
|
|
|
1059 |
|
|
/* forget possible initially masked and pending IRQ */
|
1060 |
|
|
irq = probe_irq_off(probe_irq_on());
|
1061 |
|
|
|
1062 |
|
|
/* Clear interrupts on the board first */
|
1063 |
|
|
cy_writeb((u_long)address + (Cy_ClrIntr<<index), 0);
|
1064 |
|
|
/* Cy_ClrIntr is 0x1800 */
|
1065 |
|
|
|
1066 |
|
|
irqs = probe_irq_on();
|
1067 |
|
|
/* Wait ... */
|
1068 |
|
|
udelay(5000L);
|
1069 |
|
|
|
1070 |
|
|
/* Enable the Tx interrupts on the CD1400 */
|
1071 |
|
|
save_flags(flags); cli();
|
1072 |
|
|
cy_writeb((u_long)address + (CyCAR<<index), 0);
|
1073 |
|
|
cyy_issue_cmd(address, CyCHAN_CTL|CyENB_XMTR, index);
|
1074 |
|
|
|
1075 |
|
|
cy_writeb((u_long)address + (CyCAR<<index), 0);
|
1076 |
|
|
cy_writeb((u_long)address + (CySRER<<index),
|
1077 |
|
|
cy_readb(address + (CySRER<<index)) | CyTxRdy);
|
1078 |
|
|
restore_flags(flags);
|
1079 |
|
|
|
1080 |
|
|
/* Wait ... */
|
1081 |
|
|
udelay(5000L);
|
1082 |
|
|
|
1083 |
|
|
/* Check which interrupt is in use */
|
1084 |
|
|
irq = probe_irq_off(irqs);
|
1085 |
|
|
|
1086 |
|
|
/* Clean up */
|
1087 |
|
|
save_xir = (u_char) cy_readb(address + (CyTIR<<index));
|
1088 |
|
|
save_car = cy_readb(address + (CyCAR<<index));
|
1089 |
|
|
cy_writeb((u_long)address + (CyCAR<<index), (save_xir & 0x3));
|
1090 |
|
|
cy_writeb((u_long)address + (CySRER<<index),
|
1091 |
|
|
cy_readb(address + (CySRER<<index)) & ~CyTxRdy);
|
1092 |
|
|
cy_writeb((u_long)address + (CyTIR<<index), (save_xir & 0x3f));
|
1093 |
|
|
cy_writeb((u_long)address + (CyCAR<<index), (save_car));
|
1094 |
|
|
cy_writeb((u_long)address + (Cy_ClrIntr<<index), 0);
|
1095 |
|
|
/* Cy_ClrIntr is 0x1800 */
|
1096 |
|
|
|
1097 |
|
|
return (irq > 0)? irq : 0;
|
1098 |
|
|
}
|
1099 |
|
|
#endif /* CONFIG_ISA */
|
1100 |
|
|
|
1101 |
|
|
/* The real interrupt service routine is called
|
1102 |
|
|
whenever the card wants its hand held--chars
|
1103 |
|
|
received, out buffer empty, modem change, etc.
|
1104 |
|
|
*/
|
1105 |
|
|
static void
|
1106 |
|
|
cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
1107 |
|
|
{
|
1108 |
|
|
struct tty_struct *tty;
|
1109 |
|
|
int status;
|
1110 |
|
|
struct cyclades_card *cinfo;
|
1111 |
|
|
struct cyclades_port *info;
|
1112 |
|
|
volatile unsigned char *base_addr, *card_base_addr;
|
1113 |
|
|
int chip;
|
1114 |
|
|
int save_xir, channel, save_car;
|
1115 |
|
|
char data;
|
1116 |
|
|
volatile int char_count;
|
1117 |
|
|
int outch;
|
1118 |
|
|
int i,j,index;
|
1119 |
|
|
int too_many;
|
1120 |
|
|
int had_work;
|
1121 |
|
|
int mdm_change;
|
1122 |
|
|
int mdm_status;
|
1123 |
|
|
|
1124 |
|
|
if((cinfo = (struct cyclades_card *)dev_id) == 0){
|
1125 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1126 |
|
|
printk("cyy_interrupt: spurious interrupt %d\n\r", irq);
|
1127 |
|
|
#endif
|
1128 |
|
|
return; /* spurious interrupt */
|
1129 |
|
|
}
|
1130 |
|
|
|
1131 |
|
|
card_base_addr = (unsigned char *)cinfo->base_addr;
|
1132 |
|
|
index = cinfo->bus_index;
|
1133 |
|
|
|
1134 |
|
|
|
1135 |
|
|
/* This loop checks all chips in the card. Make a note whenever
|
1136 |
|
|
_any_ chip had some work to do, as this is considered an
|
1137 |
|
|
indication that there will be more to do. Only when no chip
|
1138 |
|
|
has any work does this outermost loop exit.
|
1139 |
|
|
*/
|
1140 |
|
|
do{
|
1141 |
|
|
had_work = 0;
|
1142 |
|
|
for ( chip = 0 ; chip < cinfo->num_chips ; chip ++) {
|
1143 |
|
|
base_addr = (unsigned char *)
|
1144 |
|
|
(cinfo->base_addr + (cy_chip_offset[chip]<<index));
|
1145 |
|
|
too_many = 0;
|
1146 |
|
|
while ( (status = cy_readb(base_addr+(CySVRR<<index))) != 0x00) {
|
1147 |
|
|
had_work++;
|
1148 |
|
|
/* The purpose of the following test is to ensure that
|
1149 |
|
|
no chip can monopolize the driver. This forces the
|
1150 |
|
|
chips to be checked in a round-robin fashion (after
|
1151 |
|
|
draining each of a bunch (1000) of characters).
|
1152 |
|
|
*/
|
1153 |
|
|
if(1000<too_many++){
|
1154 |
|
|
break;
|
1155 |
|
|
}
|
1156 |
|
|
if (status & CySRReceive) { /* reception interrupt */
|
1157 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1158 |
|
|
printk("cyy_interrupt: rcvd intr, chip %d\n\r", chip);
|
1159 |
|
|
#endif
|
1160 |
|
|
/* determine the channel & change to that context */
|
1161 |
|
|
spin_lock(&cinfo->card_lock);
|
1162 |
|
|
save_xir = (u_char) cy_readb(base_addr+(CyRIR<<index));
|
1163 |
|
|
channel = (u_short ) (save_xir & CyIRChannel);
|
1164 |
|
|
i = channel + chip * 4 + cinfo->first_line;
|
1165 |
|
|
info = &cy_port[i];
|
1166 |
|
|
info->last_active = jiffies;
|
1167 |
|
|
save_car = cy_readb(base_addr+(CyCAR<<index));
|
1168 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), save_xir);
|
1169 |
|
|
|
1170 |
|
|
/* if there is nowhere to put the data, discard it */
|
1171 |
|
|
if(info->tty == 0){
|
1172 |
|
|
j = (cy_readb(base_addr+(CyRIVR<<index)) & CyIVRMask);
|
1173 |
|
|
if ( j == CyIVRRxEx ) { /* exception */
|
1174 |
|
|
data = cy_readb(base_addr+(CyRDSR<<index));
|
1175 |
|
|
} else { /* normal character reception */
|
1176 |
|
|
char_count = cy_readb(base_addr+(CyRDCR<<index));
|
1177 |
|
|
while(char_count--){
|
1178 |
|
|
data = cy_readb(base_addr+(CyRDSR<<index));
|
1179 |
|
|
}
|
1180 |
|
|
}
|
1181 |
|
|
}else{ /* there is an open port for this data */
|
1182 |
|
|
tty = info->tty;
|
1183 |
|
|
j = (cy_readb(base_addr+(CyRIVR<<index)) & CyIVRMask);
|
1184 |
|
|
if ( j == CyIVRRxEx ) { /* exception */
|
1185 |
|
|
data = cy_readb(base_addr+(CyRDSR<<index));
|
1186 |
|
|
|
1187 |
|
|
/* For statistics only */
|
1188 |
|
|
if (data & CyBREAK)
|
1189 |
|
|
info->icount.brk++;
|
1190 |
|
|
else if(data & CyFRAME)
|
1191 |
|
|
info->icount.frame++;
|
1192 |
|
|
else if(data & CyPARITY)
|
1193 |
|
|
info->icount.parity++;
|
1194 |
|
|
else if(data & CyOVERRUN)
|
1195 |
|
|
info->icount.overrun++;
|
1196 |
|
|
|
1197 |
|
|
if(data & info->ignore_status_mask){
|
1198 |
|
|
info->icount.rx++;
|
1199 |
|
|
continue;
|
1200 |
|
|
}
|
1201 |
|
|
if (tty->flip.count < TTY_FLIPBUF_SIZE){
|
1202 |
|
|
tty->flip.count++;
|
1203 |
|
|
if (data & info->read_status_mask){
|
1204 |
|
|
if(data & CyBREAK){
|
1205 |
|
|
*tty->flip.flag_buf_ptr++ =
|
1206 |
|
|
TTY_BREAK;
|
1207 |
|
|
*tty->flip.char_buf_ptr++ =
|
1208 |
|
|
cy_readb(base_addr+(CyRDSR<<index));
|
1209 |
|
|
info->icount.rx++;
|
1210 |
|
|
if (info->flags & ASYNC_SAK){
|
1211 |
|
|
do_SAK(tty);
|
1212 |
|
|
}
|
1213 |
|
|
}else if(data & CyFRAME){
|
1214 |
|
|
*tty->flip.flag_buf_ptr++ =
|
1215 |
|
|
TTY_FRAME;
|
1216 |
|
|
*tty->flip.char_buf_ptr++ =
|
1217 |
|
|
cy_readb(base_addr+(CyRDSR<<index));
|
1218 |
|
|
info->icount.rx++;
|
1219 |
|
|
info->idle_stats.frame_errs++;
|
1220 |
|
|
}else if(data & CyPARITY){
|
1221 |
|
|
*tty->flip.flag_buf_ptr++ =
|
1222 |
|
|
TTY_PARITY;
|
1223 |
|
|
*tty->flip.char_buf_ptr++ =
|
1224 |
|
|
cy_readb(base_addr+(CyRDSR<<index));
|
1225 |
|
|
info->icount.rx++;
|
1226 |
|
|
info->idle_stats.parity_errs++;
|
1227 |
|
|
}else if(data & CyOVERRUN){
|
1228 |
|
|
*tty->flip.flag_buf_ptr++ =
|
1229 |
|
|
TTY_OVERRUN;
|
1230 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1231 |
|
|
info->icount.rx++;
|
1232 |
|
|
/* If the flip buffer itself is
|
1233 |
|
|
overflowing, we still lose
|
1234 |
|
|
the next incoming character.
|
1235 |
|
|
*/
|
1236 |
|
|
if(tty->flip.count
|
1237 |
|
|
< TTY_FLIPBUF_SIZE){
|
1238 |
|
|
tty->flip.count++;
|
1239 |
|
|
*tty->flip.flag_buf_ptr++ =
|
1240 |
|
|
TTY_NORMAL;
|
1241 |
|
|
*tty->flip.char_buf_ptr++ =
|
1242 |
|
|
cy_readb(base_addr+(CyRDSR<<index));
|
1243 |
|
|
info->icount.rx++;
|
1244 |
|
|
}
|
1245 |
|
|
info->idle_stats.overruns++;
|
1246 |
|
|
/* These two conditions may imply */
|
1247 |
|
|
/* a normal read should be done. */
|
1248 |
|
|
/* }else if(data & CyTIMEOUT){ */
|
1249 |
|
|
/* }else if(data & CySPECHAR){ */
|
1250 |
|
|
}else{
|
1251 |
|
|
*tty->flip.flag_buf_ptr++ = 0;
|
1252 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1253 |
|
|
info->icount.rx++;
|
1254 |
|
|
}
|
1255 |
|
|
}else{
|
1256 |
|
|
*tty->flip.flag_buf_ptr++ = 0;
|
1257 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1258 |
|
|
info->icount.rx++;
|
1259 |
|
|
}
|
1260 |
|
|
}else{
|
1261 |
|
|
/* there was a software buffer
|
1262 |
|
|
overrun and nothing could be
|
1263 |
|
|
done about it!!! */
|
1264 |
|
|
info->icount.buf_overrun++;
|
1265 |
|
|
info->idle_stats.overruns++;
|
1266 |
|
|
}
|
1267 |
|
|
} else { /* normal character reception */
|
1268 |
|
|
/* load # chars available from the chip */
|
1269 |
|
|
char_count = cy_readb(base_addr+(CyRDCR<<index));
|
1270 |
|
|
|
1271 |
|
|
#ifdef CY_ENABLE_MONITORING
|
1272 |
|
|
++info->mon.int_count;
|
1273 |
|
|
info->mon.char_count += char_count;
|
1274 |
|
|
if (char_count > info->mon.char_max)
|
1275 |
|
|
info->mon.char_max = char_count;
|
1276 |
|
|
info->mon.char_last = char_count;
|
1277 |
|
|
#endif
|
1278 |
|
|
info->idle_stats.recv_bytes += char_count;
|
1279 |
|
|
info->idle_stats.recv_idle = jiffies;
|
1280 |
|
|
while(char_count--){
|
1281 |
|
|
if (tty->flip.count >= TTY_FLIPBUF_SIZE){
|
1282 |
|
|
break;
|
1283 |
|
|
}
|
1284 |
|
|
tty->flip.count++;
|
1285 |
|
|
data = cy_readb(base_addr+(CyRDSR<<index));
|
1286 |
|
|
*tty->flip.flag_buf_ptr++ = TTY_NORMAL;
|
1287 |
|
|
*tty->flip.char_buf_ptr++ = data;
|
1288 |
|
|
info->icount.rx++;
|
1289 |
|
|
#ifdef CY_16Y_HACK
|
1290 |
|
|
udelay(10L);
|
1291 |
|
|
#endif
|
1292 |
|
|
}
|
1293 |
|
|
}
|
1294 |
|
|
queue_task(&tty->flip.tqueue, &tq_timer);
|
1295 |
|
|
}
|
1296 |
|
|
/* end of service */
|
1297 |
|
|
cy_writeb((u_long)base_addr+(CyRIR<<index), (save_xir & 0x3f));
|
1298 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (save_car));
|
1299 |
|
|
spin_unlock(&cinfo->card_lock);
|
1300 |
|
|
}
|
1301 |
|
|
|
1302 |
|
|
|
1303 |
|
|
if (status & CySRTransmit) { /* transmission interrupt */
|
1304 |
|
|
/* Since we only get here when the transmit buffer
|
1305 |
|
|
is empty, we know we can always stuff a dozen
|
1306 |
|
|
characters. */
|
1307 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1308 |
|
|
printk("cyy_interrupt: xmit intr, chip %d\n\r", chip);
|
1309 |
|
|
#endif
|
1310 |
|
|
|
1311 |
|
|
/* determine the channel & change to that context */
|
1312 |
|
|
spin_lock(&cinfo->card_lock);
|
1313 |
|
|
save_xir = (u_char) cy_readb(base_addr+(CyTIR<<index));
|
1314 |
|
|
channel = (u_short ) (save_xir & CyIRChannel);
|
1315 |
|
|
i = channel + chip * 4 + cinfo->first_line;
|
1316 |
|
|
save_car = cy_readb(base_addr+(CyCAR<<index));
|
1317 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), save_xir);
|
1318 |
|
|
|
1319 |
|
|
/* validate the port# (as configured and open) */
|
1320 |
|
|
if( (i < 0) || (NR_PORTS <= i) ){
|
1321 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1322 |
|
|
cy_readb(base_addr+(CySRER<<index)) & ~CyTxRdy);
|
1323 |
|
|
goto txend;
|
1324 |
|
|
}
|
1325 |
|
|
info = &cy_port[i];
|
1326 |
|
|
info->last_active = jiffies;
|
1327 |
|
|
if(info->tty == 0){
|
1328 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1329 |
|
|
cy_readb(base_addr+(CySRER<<index)) & ~CyTxRdy);
|
1330 |
|
|
goto txdone;
|
1331 |
|
|
}
|
1332 |
|
|
|
1333 |
|
|
/* load the on-chip space for outbound data */
|
1334 |
|
|
char_count = info->xmit_fifo_size;
|
1335 |
|
|
|
1336 |
|
|
if(info->x_char) { /* send special char */
|
1337 |
|
|
outch = info->x_char;
|
1338 |
|
|
cy_writeb((u_long)base_addr+(CyTDR<<index), outch);
|
1339 |
|
|
char_count--;
|
1340 |
|
|
info->icount.tx++;
|
1341 |
|
|
info->x_char = 0;
|
1342 |
|
|
}
|
1343 |
|
|
|
1344 |
|
|
if (info->breakon || info->breakoff) {
|
1345 |
|
|
if (info->breakon) {
|
1346 |
|
|
cy_writeb((u_long)base_addr + (CyTDR<<index), 0);
|
1347 |
|
|
cy_writeb((u_long)base_addr + (CyTDR<<index), 0x81);
|
1348 |
|
|
info->breakon = 0;
|
1349 |
|
|
char_count -= 2;
|
1350 |
|
|
}
|
1351 |
|
|
if (info->breakoff) {
|
1352 |
|
|
cy_writeb((u_long)base_addr + (CyTDR<<index), 0);
|
1353 |
|
|
cy_writeb((u_long)base_addr + (CyTDR<<index), 0x83);
|
1354 |
|
|
info->breakoff = 0;
|
1355 |
|
|
char_count -= 2;
|
1356 |
|
|
}
|
1357 |
|
|
}
|
1358 |
|
|
|
1359 |
|
|
while (char_count-- > 0){
|
1360 |
|
|
if (!info->xmit_cnt){
|
1361 |
|
|
if (cy_readb(base_addr+(CySRER<<index))&CyTxMpty) {
|
1362 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1363 |
|
|
cy_readb(base_addr+(CySRER<<index)) &
|
1364 |
|
|
~CyTxMpty);
|
1365 |
|
|
} else {
|
1366 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1367 |
|
|
((cy_readb(base_addr+(CySRER<<index))
|
1368 |
|
|
& ~CyTxRdy)
|
1369 |
|
|
| CyTxMpty));
|
1370 |
|
|
}
|
1371 |
|
|
goto txdone;
|
1372 |
|
|
}
|
1373 |
|
|
if (info->xmit_buf == 0){
|
1374 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1375 |
|
|
cy_readb(base_addr+(CySRER<<index)) &
|
1376 |
|
|
~CyTxRdy);
|
1377 |
|
|
goto txdone;
|
1378 |
|
|
}
|
1379 |
|
|
if (info->tty->stopped || info->tty->hw_stopped){
|
1380 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1381 |
|
|
cy_readb(base_addr+(CySRER<<index)) &
|
1382 |
|
|
~CyTxRdy);
|
1383 |
|
|
goto txdone;
|
1384 |
|
|
}
|
1385 |
|
|
/* Because the Embedded Transmit Commands have
|
1386 |
|
|
been enabled, we must check to see if the
|
1387 |
|
|
escape character, NULL, is being sent. If it
|
1388 |
|
|
is, we must ensure that there is room for it
|
1389 |
|
|
to be doubled in the output stream. Therefore
|
1390 |
|
|
we no longer advance the pointer when the
|
1391 |
|
|
character is fetched, but rather wait until
|
1392 |
|
|
after the check for a NULL output character.
|
1393 |
|
|
This is necessary because there may not be
|
1394 |
|
|
room for the two chars needed to send a NULL.)
|
1395 |
|
|
*/
|
1396 |
|
|
outch = info->xmit_buf[info->xmit_tail];
|
1397 |
|
|
if( outch ){
|
1398 |
|
|
info->xmit_cnt--;
|
1399 |
|
|
info->xmit_tail = (info->xmit_tail + 1)
|
1400 |
|
|
& (SERIAL_XMIT_SIZE - 1);
|
1401 |
|
|
cy_writeb((u_long)base_addr+(CyTDR<<index), outch);
|
1402 |
|
|
info->icount.tx++;
|
1403 |
|
|
}else{
|
1404 |
|
|
if(char_count > 1){
|
1405 |
|
|
info->xmit_cnt--;
|
1406 |
|
|
info->xmit_tail = (info->xmit_tail + 1)
|
1407 |
|
|
& (SERIAL_XMIT_SIZE - 1);
|
1408 |
|
|
cy_writeb((u_long)base_addr+(CyTDR<<index),
|
1409 |
|
|
outch);
|
1410 |
|
|
cy_writeb((u_long)base_addr+(CyTDR<<index), 0);
|
1411 |
|
|
info->icount.tx++;
|
1412 |
|
|
char_count--;
|
1413 |
|
|
}else{
|
1414 |
|
|
}
|
1415 |
|
|
}
|
1416 |
|
|
}
|
1417 |
|
|
|
1418 |
|
|
txdone:
|
1419 |
|
|
if (info->xmit_cnt < WAKEUP_CHARS) {
|
1420 |
|
|
cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
|
1421 |
|
|
}
|
1422 |
|
|
txend:
|
1423 |
|
|
/* end of service */
|
1424 |
|
|
cy_writeb((u_long)base_addr+(CyTIR<<index),
|
1425 |
|
|
(save_xir & 0x3f));
|
1426 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (save_car));
|
1427 |
|
|
spin_unlock(&cinfo->card_lock);
|
1428 |
|
|
}
|
1429 |
|
|
|
1430 |
|
|
if (status & CySRModem) { /* modem interrupt */
|
1431 |
|
|
|
1432 |
|
|
/* determine the channel & change to that context */
|
1433 |
|
|
spin_lock(&cinfo->card_lock);
|
1434 |
|
|
save_xir = (u_char) cy_readb(base_addr+(CyMIR<<index));
|
1435 |
|
|
channel = (u_short ) (save_xir & CyIRChannel);
|
1436 |
|
|
info = &cy_port[channel + chip * 4
|
1437 |
|
|
+ cinfo->first_line];
|
1438 |
|
|
info->last_active = jiffies;
|
1439 |
|
|
save_car = cy_readb(base_addr+(CyCAR<<index));
|
1440 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), save_xir);
|
1441 |
|
|
|
1442 |
|
|
mdm_change = cy_readb(base_addr+(CyMISR<<index));
|
1443 |
|
|
mdm_status = cy_readb(base_addr+(CyMSVR1<<index));
|
1444 |
|
|
|
1445 |
|
|
if(info->tty == 0){/* no place for data, ignore it*/
|
1446 |
|
|
;
|
1447 |
|
|
}else{
|
1448 |
|
|
if (mdm_change & CyANY_DELTA) {
|
1449 |
|
|
/* For statistics only */
|
1450 |
|
|
if (mdm_change & CyDCD) info->icount.dcd++;
|
1451 |
|
|
if (mdm_change & CyCTS) info->icount.cts++;
|
1452 |
|
|
if (mdm_change & CyDSR) info->icount.dsr++;
|
1453 |
|
|
if (mdm_change & CyRI) info->icount.rng++;
|
1454 |
|
|
|
1455 |
|
|
cy_sched_event(info, Cy_EVENT_DELTA_WAKEUP);
|
1456 |
|
|
}
|
1457 |
|
|
|
1458 |
|
|
if((mdm_change & CyDCD)
|
1459 |
|
|
&& (info->flags & ASYNC_CHECK_CD)){
|
1460 |
|
|
if(mdm_status & CyDCD){
|
1461 |
|
|
cy_sched_event(info,
|
1462 |
|
|
Cy_EVENT_OPEN_WAKEUP);
|
1463 |
|
|
}else if(!((info->flags
|
1464 |
|
|
& ASYNC_CALLOUT_ACTIVE)
|
1465 |
|
|
&&(info->flags
|
1466 |
|
|
& ASYNC_CALLOUT_NOHUP))){
|
1467 |
|
|
cy_sched_event(info,
|
1468 |
|
|
Cy_EVENT_HANGUP);
|
1469 |
|
|
}
|
1470 |
|
|
}
|
1471 |
|
|
if((mdm_change & CyCTS)
|
1472 |
|
|
&& (info->flags & ASYNC_CTS_FLOW)){
|
1473 |
|
|
if(info->tty->hw_stopped){
|
1474 |
|
|
if(mdm_status & CyCTS){
|
1475 |
|
|
/* cy_start isn't used
|
1476 |
|
|
because... !!! */
|
1477 |
|
|
info->tty->hw_stopped = 0;
|
1478 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1479 |
|
|
cy_readb(base_addr+(CySRER<<index)) |
|
1480 |
|
|
CyTxRdy);
|
1481 |
|
|
cy_sched_event(info,
|
1482 |
|
|
Cy_EVENT_WRITE_WAKEUP);
|
1483 |
|
|
}
|
1484 |
|
|
}else{
|
1485 |
|
|
if(!(mdm_status & CyCTS)){
|
1486 |
|
|
/* cy_stop isn't used
|
1487 |
|
|
because ... !!! */
|
1488 |
|
|
info->tty->hw_stopped = 1;
|
1489 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
1490 |
|
|
cy_readb(base_addr+(CySRER<<index)) &
|
1491 |
|
|
~CyTxRdy);
|
1492 |
|
|
}
|
1493 |
|
|
}
|
1494 |
|
|
}
|
1495 |
|
|
if(mdm_change & CyDSR){
|
1496 |
|
|
}
|
1497 |
|
|
if(mdm_change & CyRI){
|
1498 |
|
|
}
|
1499 |
|
|
}
|
1500 |
|
|
/* end of service */
|
1501 |
|
|
cy_writeb((u_long)base_addr+(CyMIR<<index),
|
1502 |
|
|
(save_xir & 0x3f));
|
1503 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), save_car);
|
1504 |
|
|
spin_unlock(&cinfo->card_lock);
|
1505 |
|
|
}
|
1506 |
|
|
} /* end while status != 0 */
|
1507 |
|
|
} /* end loop for chips... */
|
1508 |
|
|
} while(had_work);
|
1509 |
|
|
|
1510 |
|
|
/* clear interrupts */
|
1511 |
|
|
spin_lock(&cinfo->card_lock);
|
1512 |
|
|
cy_writeb((u_long)card_base_addr + (Cy_ClrIntr<<index), 0);
|
1513 |
|
|
/* Cy_ClrIntr is 0x1800 */
|
1514 |
|
|
spin_unlock(&cinfo->card_lock);
|
1515 |
|
|
} /* cyy_interrupt */
|
1516 |
|
|
|
1517 |
|
|
/***********************************************************/
|
1518 |
|
|
/********* End of block of Cyclom-Y specific code **********/
|
1519 |
|
|
/******** Start of block of Cyclades-Z specific code *********/
|
1520 |
|
|
/***********************************************************/
|
1521 |
|
|
|
1522 |
|
|
static int
|
1523 |
|
|
cyz_fetch_msg( struct cyclades_card *cinfo,
|
1524 |
|
|
uclong *channel, ucchar *cmd, uclong *param)
|
1525 |
|
|
{
|
1526 |
|
|
struct FIRM_ID *firm_id;
|
1527 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
1528 |
|
|
struct BOARD_CTRL *board_ctrl;
|
1529 |
|
|
unsigned long loc_doorbell;
|
1530 |
|
|
|
1531 |
|
|
firm_id = (struct FIRM_ID *)(cinfo->base_addr + ID_ADDRESS);
|
1532 |
|
|
if (!ISZLOADED(*cinfo)){
|
1533 |
|
|
return (-1);
|
1534 |
|
|
}
|
1535 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
1536 |
|
|
(cinfo->base_addr +
|
1537 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
1538 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
1539 |
|
|
|
1540 |
|
|
loc_doorbell = cy_readl(&((struct RUNTIME_9060 *)
|
1541 |
|
|
(cinfo->ctl_addr))->loc_doorbell);
|
1542 |
|
|
if (loc_doorbell){
|
1543 |
|
|
*cmd = (char)(0xff & loc_doorbell);
|
1544 |
|
|
*channel = cy_readl(&board_ctrl->fwcmd_channel);
|
1545 |
|
|
*param = (uclong)cy_readl(&board_ctrl->fwcmd_param);
|
1546 |
|
|
cy_writel(&((struct RUNTIME_9060 *)(cinfo->ctl_addr))->loc_doorbell,
|
1547 |
|
|
0xffffffff);
|
1548 |
|
|
return 1;
|
1549 |
|
|
}
|
1550 |
|
|
return 0;
|
1551 |
|
|
} /* cyz_fetch_msg */
|
1552 |
|
|
|
1553 |
|
|
static int
|
1554 |
|
|
cyz_issue_cmd( struct cyclades_card *cinfo,
|
1555 |
|
|
uclong channel, ucchar cmd, uclong param)
|
1556 |
|
|
{
|
1557 |
|
|
struct FIRM_ID *firm_id;
|
1558 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
1559 |
|
|
struct BOARD_CTRL *board_ctrl;
|
1560 |
|
|
volatile uclong *pci_doorbell;
|
1561 |
|
|
int index;
|
1562 |
|
|
|
1563 |
|
|
firm_id = (struct FIRM_ID *)(cinfo->base_addr + ID_ADDRESS);
|
1564 |
|
|
if (!ISZLOADED(*cinfo)){
|
1565 |
|
|
return (-1);
|
1566 |
|
|
}
|
1567 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
1568 |
|
|
(cinfo->base_addr +
|
1569 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
1570 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
1571 |
|
|
|
1572 |
|
|
index = 0;
|
1573 |
|
|
pci_doorbell = (uclong *)(&((struct RUNTIME_9060 *)
|
1574 |
|
|
(cinfo->ctl_addr))->pci_doorbell);
|
1575 |
|
|
while( (cy_readl(pci_doorbell) & 0xff) != 0){
|
1576 |
|
|
if (index++ == 1000){
|
1577 |
|
|
return((int)(cy_readl(pci_doorbell) & 0xff));
|
1578 |
|
|
}
|
1579 |
|
|
udelay(50L);
|
1580 |
|
|
}
|
1581 |
|
|
cy_writel((u_long)&board_ctrl->hcmd_channel, channel);
|
1582 |
|
|
cy_writel((u_long)&board_ctrl->hcmd_param , param);
|
1583 |
|
|
cy_writel((u_long)pci_doorbell, (long)cmd);
|
1584 |
|
|
|
1585 |
|
|
return(0);
|
1586 |
|
|
} /* cyz_issue_cmd */
|
1587 |
|
|
|
1588 |
|
|
static void
|
1589 |
|
|
cyz_handle_rx(struct cyclades_port *info, volatile struct CH_CTRL *ch_ctrl,
|
1590 |
|
|
volatile struct BUF_CTRL *buf_ctrl)
|
1591 |
|
|
{
|
1592 |
|
|
struct cyclades_card *cinfo = &cy_card[info->card];
|
1593 |
|
|
struct tty_struct *tty = info->tty;
|
1594 |
|
|
volatile int char_count;
|
1595 |
|
|
#ifdef BLOCKMOVE
|
1596 |
|
|
int small_count;
|
1597 |
|
|
#else
|
1598 |
|
|
char data;
|
1599 |
|
|
#endif
|
1600 |
|
|
volatile uclong rx_put, rx_get, new_rx_get, rx_bufsize, rx_bufaddr;
|
1601 |
|
|
|
1602 |
|
|
rx_get = new_rx_get = cy_readl(&buf_ctrl->rx_get);
|
1603 |
|
|
rx_put = cy_readl(&buf_ctrl->rx_put);
|
1604 |
|
|
rx_bufsize = cy_readl(&buf_ctrl->rx_bufsize);
|
1605 |
|
|
rx_bufaddr = cy_readl(&buf_ctrl->rx_bufaddr);
|
1606 |
|
|
if (rx_put >= rx_get)
|
1607 |
|
|
char_count = rx_put - rx_get;
|
1608 |
|
|
else
|
1609 |
|
|
char_count = rx_put - rx_get + rx_bufsize;
|
1610 |
|
|
|
1611 |
|
|
if ( char_count ) {
|
1612 |
|
|
info->last_active = jiffies;
|
1613 |
|
|
info->jiffies[1] = jiffies;
|
1614 |
|
|
|
1615 |
|
|
#ifdef CY_ENABLE_MONITORING
|
1616 |
|
|
info->mon.int_count++;
|
1617 |
|
|
info->mon.char_count += char_count;
|
1618 |
|
|
if (char_count > info->mon.char_max)
|
1619 |
|
|
info->mon.char_max = char_count;
|
1620 |
|
|
info->mon.char_last = char_count;
|
1621 |
|
|
#endif
|
1622 |
|
|
if(tty == 0){
|
1623 |
|
|
/* flush received characters */
|
1624 |
|
|
new_rx_get = (new_rx_get + char_count) & (rx_bufsize - 1);
|
1625 |
|
|
info->rflush_count++;
|
1626 |
|
|
}else{
|
1627 |
|
|
#ifdef BLOCKMOVE
|
1628 |
|
|
/* we'd like to use memcpy(t, f, n) and memset(s, c, count)
|
1629 |
|
|
for performance, but because of buffer boundaries, there
|
1630 |
|
|
may be several steps to the operation */
|
1631 |
|
|
while(0 < (small_count =
|
1632 |
|
|
min_t(unsigned int, (rx_bufsize - new_rx_get),
|
1633 |
|
|
min_t(unsigned int, (TTY_FLIPBUF_SIZE - tty->flip.count), char_count))
|
1634 |
|
|
)) {
|
1635 |
|
|
memcpy_fromio(tty->flip.char_buf_ptr,
|
1636 |
|
|
(char *)(cinfo->base_addr
|
1637 |
|
|
+ rx_bufaddr + new_rx_get),
|
1638 |
|
|
small_count);
|
1639 |
|
|
|
1640 |
|
|
tty->flip.char_buf_ptr += small_count;
|
1641 |
|
|
memset(tty->flip.flag_buf_ptr, TTY_NORMAL, small_count);
|
1642 |
|
|
tty->flip.flag_buf_ptr += small_count;
|
1643 |
|
|
new_rx_get = (new_rx_get + small_count) & (rx_bufsize - 1);
|
1644 |
|
|
char_count -= small_count;
|
1645 |
|
|
info->icount.rx += small_count;
|
1646 |
|
|
info->idle_stats.recv_bytes += small_count;
|
1647 |
|
|
tty->flip.count += small_count;
|
1648 |
|
|
}
|
1649 |
|
|
#else
|
1650 |
|
|
while(char_count--){
|
1651 |
|
|
if (tty->flip.count >= TTY_FLIPBUF_SIZE){
|
1652 |
|
|
break;
|
1653 |
|
|
}
|
1654 |
|
|
data = cy_readb(cinfo->base_addr + rx_bufaddr + new_rx_get);
|
1655 |
|
|
new_rx_get = (new_rx_get + 1) & (rx_bufsize - 1);
|
1656 |
|
|
tty->flip.count++;
|
1657 |
|
|
*tty->flip.flag_buf_ptr++ = TTY_NORMAL;
|
1658 |
|
|
*tty->flip.char_buf_ptr++ = data;
|
1659 |
|
|
info->idle_stats.recv_bytes++;
|
1660 |
|
|
info->icount.rx++;
|
1661 |
|
|
}
|
1662 |
|
|
#endif
|
1663 |
|
|
#ifdef CONFIG_CYZ_INTR
|
1664 |
|
|
/* Recalculate the number of chars in the RX buffer and issue
|
1665 |
|
|
a cmd in case it's higher than the RX high water mark */
|
1666 |
|
|
rx_put = cy_readl(&buf_ctrl->rx_put);
|
1667 |
|
|
if (rx_put >= rx_get)
|
1668 |
|
|
char_count = rx_put - rx_get;
|
1669 |
|
|
else
|
1670 |
|
|
char_count = rx_put - rx_get + rx_bufsize;
|
1671 |
|
|
if(char_count >= cy_readl(&buf_ctrl->rx_threshold)) {
|
1672 |
|
|
cy_sched_event(info, Cy_EVENT_Z_RX_FULL);
|
1673 |
|
|
}
|
1674 |
|
|
#endif
|
1675 |
|
|
info->idle_stats.recv_idle = jiffies;
|
1676 |
|
|
queue_task(&tty->flip.tqueue, &tq_timer);
|
1677 |
|
|
}
|
1678 |
|
|
/* Update rx_get */
|
1679 |
|
|
cy_writel(&buf_ctrl->rx_get, new_rx_get);
|
1680 |
|
|
}
|
1681 |
|
|
}
|
1682 |
|
|
|
1683 |
|
|
static void
|
1684 |
|
|
cyz_handle_tx(struct cyclades_port *info, volatile struct CH_CTRL *ch_ctrl,
|
1685 |
|
|
volatile struct BUF_CTRL *buf_ctrl)
|
1686 |
|
|
{
|
1687 |
|
|
struct cyclades_card *cinfo = &cy_card[info->card];
|
1688 |
|
|
struct tty_struct *tty = info->tty;
|
1689 |
|
|
char data;
|
1690 |
|
|
volatile int char_count;
|
1691 |
|
|
#ifdef BLOCKMOVE
|
1692 |
|
|
int small_count;
|
1693 |
|
|
#endif
|
1694 |
|
|
volatile uclong tx_put, tx_get, tx_bufsize, tx_bufaddr;
|
1695 |
|
|
|
1696 |
|
|
if (info->xmit_cnt <= 0) /* Nothing to transmit */
|
1697 |
|
|
return;
|
1698 |
|
|
|
1699 |
|
|
tx_get = cy_readl(&buf_ctrl->tx_get);
|
1700 |
|
|
tx_put = cy_readl(&buf_ctrl->tx_put);
|
1701 |
|
|
tx_bufsize = cy_readl(&buf_ctrl->tx_bufsize);
|
1702 |
|
|
tx_bufaddr = cy_readl(&buf_ctrl->tx_bufaddr);
|
1703 |
|
|
if (tx_put >= tx_get)
|
1704 |
|
|
char_count = tx_get - tx_put - 1 + tx_bufsize;
|
1705 |
|
|
else
|
1706 |
|
|
char_count = tx_get - tx_put - 1;
|
1707 |
|
|
|
1708 |
|
|
if ( char_count ) {
|
1709 |
|
|
|
1710 |
|
|
if( tty == 0 ){
|
1711 |
|
|
goto ztxdone;
|
1712 |
|
|
}
|
1713 |
|
|
|
1714 |
|
|
if(info->x_char) { /* send special char */
|
1715 |
|
|
data = info->x_char;
|
1716 |
|
|
|
1717 |
|
|
cy_writeb((cinfo->base_addr + tx_bufaddr + tx_put), data);
|
1718 |
|
|
tx_put = (tx_put + 1) & (tx_bufsize - 1);
|
1719 |
|
|
info->x_char = 0;
|
1720 |
|
|
char_count--;
|
1721 |
|
|
info->icount.tx++;
|
1722 |
|
|
info->last_active = jiffies;
|
1723 |
|
|
info->jiffies[2] = jiffies;
|
1724 |
|
|
}
|
1725 |
|
|
#ifdef BLOCKMOVE
|
1726 |
|
|
while(0 < (small_count =
|
1727 |
|
|
min_t(unsigned int, (tx_bufsize - tx_put),
|
1728 |
|
|
min_t(unsigned int, (SERIAL_XMIT_SIZE - info->xmit_tail),
|
1729 |
|
|
min_t(unsigned int, info->xmit_cnt, char_count))))) {
|
1730 |
|
|
|
1731 |
|
|
memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr + tx_put),
|
1732 |
|
|
&info->xmit_buf[info->xmit_tail],
|
1733 |
|
|
small_count);
|
1734 |
|
|
|
1735 |
|
|
tx_put = (tx_put + small_count) & (tx_bufsize - 1);
|
1736 |
|
|
char_count -= small_count;
|
1737 |
|
|
info->icount.tx += small_count;
|
1738 |
|
|
info->xmit_cnt -= small_count;
|
1739 |
|
|
info->xmit_tail =
|
1740 |
|
|
(info->xmit_tail + small_count) & (SERIAL_XMIT_SIZE - 1);
|
1741 |
|
|
info->last_active = jiffies;
|
1742 |
|
|
info->jiffies[2] = jiffies;
|
1743 |
|
|
}
|
1744 |
|
|
#else
|
1745 |
|
|
while (info->xmit_cnt && char_count){
|
1746 |
|
|
data = info->xmit_buf[info->xmit_tail];
|
1747 |
|
|
info->xmit_cnt--;
|
1748 |
|
|
info->xmit_tail = (info->xmit_tail + 1) & (SERIAL_XMIT_SIZE - 1);
|
1749 |
|
|
|
1750 |
|
|
cy_writeb(cinfo->base_addr + tx_bufaddr + tx_put, data);
|
1751 |
|
|
tx_put = (tx_put + 1) & (tx_bufsize - 1);
|
1752 |
|
|
char_count--;
|
1753 |
|
|
info->icount.tx++;
|
1754 |
|
|
info->last_active = jiffies;
|
1755 |
|
|
info->jiffies[2] = jiffies;
|
1756 |
|
|
}
|
1757 |
|
|
#endif
|
1758 |
|
|
ztxdone:
|
1759 |
|
|
if (info->xmit_cnt < WAKEUP_CHARS) {
|
1760 |
|
|
cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
|
1761 |
|
|
}
|
1762 |
|
|
/* Update tx_put */
|
1763 |
|
|
cy_writel(&buf_ctrl->tx_put, tx_put);
|
1764 |
|
|
}
|
1765 |
|
|
}
|
1766 |
|
|
|
1767 |
|
|
static void
|
1768 |
|
|
cyz_handle_cmd(struct cyclades_card *cinfo)
|
1769 |
|
|
{
|
1770 |
|
|
struct tty_struct *tty;
|
1771 |
|
|
struct cyclades_port *info;
|
1772 |
|
|
static volatile struct FIRM_ID *firm_id;
|
1773 |
|
|
static volatile struct ZFW_CTRL *zfw_ctrl;
|
1774 |
|
|
static volatile struct BOARD_CTRL *board_ctrl;
|
1775 |
|
|
static volatile struct CH_CTRL *ch_ctrl;
|
1776 |
|
|
static volatile struct BUF_CTRL *buf_ctrl;
|
1777 |
|
|
uclong channel;
|
1778 |
|
|
ucchar cmd;
|
1779 |
|
|
uclong param;
|
1780 |
|
|
uclong hw_ver, fw_ver;
|
1781 |
|
|
int special_count;
|
1782 |
|
|
int delta_count;
|
1783 |
|
|
|
1784 |
|
|
firm_id = (struct FIRM_ID *)(cinfo->base_addr + ID_ADDRESS);
|
1785 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
1786 |
|
|
(cinfo->base_addr +
|
1787 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
1788 |
|
|
board_ctrl = &(zfw_ctrl->board_ctrl);
|
1789 |
|
|
fw_ver = cy_readl(&board_ctrl->fw_version);
|
1790 |
|
|
hw_ver = cy_readl(&((struct RUNTIME_9060 *)(cinfo->ctl_addr))->mail_box_0);
|
1791 |
|
|
|
1792 |
|
|
#ifdef CONFIG_CYZ_INTR
|
1793 |
|
|
if (!cinfo->nports)
|
1794 |
|
|
cinfo->nports = (int) cy_readl(&board_ctrl->n_channel);
|
1795 |
|
|
#endif
|
1796 |
|
|
|
1797 |
|
|
while(cyz_fetch_msg(cinfo, &channel, &cmd, ¶m) == 1) {
|
1798 |
|
|
special_count = 0;
|
1799 |
|
|
delta_count = 0;
|
1800 |
|
|
info = &cy_port[channel + cinfo->first_line];
|
1801 |
|
|
if((tty = info->tty) == 0) {
|
1802 |
|
|
continue;
|
1803 |
|
|
}
|
1804 |
|
|
ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]);
|
1805 |
|
|
buf_ctrl = &(zfw_ctrl->buf_ctrl[channel]);
|
1806 |
|
|
|
1807 |
|
|
switch(cmd) {
|
1808 |
|
|
case C_CM_PR_ERROR:
|
1809 |
|
|
tty->flip.count++;
|
1810 |
|
|
*tty->flip.flag_buf_ptr++ = TTY_PARITY;
|
1811 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1812 |
|
|
info->icount.rx++;
|
1813 |
|
|
special_count++;
|
1814 |
|
|
break;
|
1815 |
|
|
case C_CM_FR_ERROR:
|
1816 |
|
|
tty->flip.count++;
|
1817 |
|
|
*tty->flip.flag_buf_ptr++ = TTY_FRAME;
|
1818 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1819 |
|
|
info->icount.rx++;
|
1820 |
|
|
special_count++;
|
1821 |
|
|
break;
|
1822 |
|
|
case C_CM_RXBRK:
|
1823 |
|
|
tty->flip.count++;
|
1824 |
|
|
*tty->flip.flag_buf_ptr++ = TTY_BREAK;
|
1825 |
|
|
*tty->flip.char_buf_ptr++ = 0;
|
1826 |
|
|
info->icount.rx++;
|
1827 |
|
|
special_count++;
|
1828 |
|
|
break;
|
1829 |
|
|
case C_CM_MDCD:
|
1830 |
|
|
info->icount.dcd++;
|
1831 |
|
|
delta_count++;
|
1832 |
|
|
if (info->flags & ASYNC_CHECK_CD){
|
1833 |
|
|
if ((fw_ver > 241 ?
|
1834 |
|
|
((u_long)param) :
|
1835 |
|
|
cy_readl(&ch_ctrl->rs_status)) & C_RS_DCD) {
|
1836 |
|
|
cy_sched_event(info, Cy_EVENT_OPEN_WAKEUP);
|
1837 |
|
|
}else if(!((info->flags & ASYNC_CALLOUT_ACTIVE)
|
1838 |
|
|
&&(info->flags & ASYNC_CALLOUT_NOHUP))){
|
1839 |
|
|
cy_sched_event(info, Cy_EVENT_HANGUP);
|
1840 |
|
|
}
|
1841 |
|
|
}
|
1842 |
|
|
break;
|
1843 |
|
|
case C_CM_MCTS:
|
1844 |
|
|
info->icount.cts++;
|
1845 |
|
|
delta_count++;
|
1846 |
|
|
break;
|
1847 |
|
|
case C_CM_MRI:
|
1848 |
|
|
info->icount.rng++;
|
1849 |
|
|
delta_count++;
|
1850 |
|
|
break;
|
1851 |
|
|
case C_CM_MDSR:
|
1852 |
|
|
info->icount.dsr++;
|
1853 |
|
|
delta_count++;
|
1854 |
|
|
break;
|
1855 |
|
|
#ifdef Z_WAKE
|
1856 |
|
|
case C_CM_IOCTLW:
|
1857 |
|
|
cy_sched_event(info, Cy_EVENT_SHUTDOWN_WAKEUP);
|
1858 |
|
|
break;
|
1859 |
|
|
#endif
|
1860 |
|
|
#ifdef CONFIG_CYZ_INTR
|
1861 |
|
|
case C_CM_RXHIWM:
|
1862 |
|
|
case C_CM_RXNNDT:
|
1863 |
|
|
case C_CM_INTBACK2:
|
1864 |
|
|
/* Reception Interrupt */
|
1865 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1866 |
|
|
printk("cyz_interrupt: rcvd intr, card %d, port %ld\n\r",
|
1867 |
|
|
info->card, channel);
|
1868 |
|
|
#endif
|
1869 |
|
|
cyz_handle_rx(info, ch_ctrl, buf_ctrl);
|
1870 |
|
|
break;
|
1871 |
|
|
case C_CM_TXBEMPTY:
|
1872 |
|
|
case C_CM_TXLOWWM:
|
1873 |
|
|
case C_CM_INTBACK:
|
1874 |
|
|
/* Transmission Interrupt */
|
1875 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1876 |
|
|
printk("cyz_interrupt: xmit intr, card %d, port %ld\n\r",
|
1877 |
|
|
info->card, channel);
|
1878 |
|
|
#endif
|
1879 |
|
|
cyz_handle_tx(info, ch_ctrl, buf_ctrl);
|
1880 |
|
|
break;
|
1881 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
1882 |
|
|
case C_CM_FATAL:
|
1883 |
|
|
/* should do something with this !!! */
|
1884 |
|
|
break;
|
1885 |
|
|
default:
|
1886 |
|
|
break;
|
1887 |
|
|
}
|
1888 |
|
|
if(delta_count)
|
1889 |
|
|
cy_sched_event(info, Cy_EVENT_DELTA_WAKEUP);
|
1890 |
|
|
if(special_count)
|
1891 |
|
|
queue_task(&tty->flip.tqueue, &tq_timer);
|
1892 |
|
|
}
|
1893 |
|
|
}
|
1894 |
|
|
|
1895 |
|
|
#ifdef CONFIG_CYZ_INTR
|
1896 |
|
|
static void
|
1897 |
|
|
cyz_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
1898 |
|
|
{
|
1899 |
|
|
struct cyclades_card *cinfo;
|
1900 |
|
|
|
1901 |
|
|
if((cinfo = (struct cyclades_card *)dev_id) == 0){
|
1902 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1903 |
|
|
printk("cyz_interrupt: spurious interrupt %d\n\r", irq);
|
1904 |
|
|
#endif
|
1905 |
|
|
return; /* spurious interrupt */
|
1906 |
|
|
}
|
1907 |
|
|
|
1908 |
|
|
if (!ISZLOADED(*cinfo)) {
|
1909 |
|
|
#ifdef CY_DEBUG_INTERRUPTS
|
1910 |
|
|
printk("cyz_interrupt: board not yet loaded (IRQ%d).\n\r", irq);
|
1911 |
|
|
#endif
|
1912 |
|
|
return;
|
1913 |
|
|
}
|
1914 |
|
|
|
1915 |
|
|
/* Handle the interrupts */
|
1916 |
|
|
cyz_handle_cmd(cinfo);
|
1917 |
|
|
|
1918 |
|
|
return;
|
1919 |
|
|
} /* cyz_interrupt */
|
1920 |
|
|
|
1921 |
|
|
static void
|
1922 |
|
|
cyz_rx_restart(unsigned long arg)
|
1923 |
|
|
{
|
1924 |
|
|
struct cyclades_port *info = (struct cyclades_port *)arg;
|
1925 |
|
|
int retval;
|
1926 |
|
|
int card = info->card;
|
1927 |
|
|
uclong channel = (info->line) - (cy_card[card].first_line);
|
1928 |
|
|
unsigned long flags;
|
1929 |
|
|
|
1930 |
|
|
CY_LOCK(info, flags);
|
1931 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_INTBACK2, 0L);
|
1932 |
|
|
if (retval != 0){
|
1933 |
|
|
printk("cyc:cyz_rx_restart retval on ttyC%d was %x\n",
|
1934 |
|
|
info->line, retval);
|
1935 |
|
|
}
|
1936 |
|
|
cyz_rx_full_timer[info->line].function = NULL;
|
1937 |
|
|
CY_UNLOCK(info, flags);
|
1938 |
|
|
}
|
1939 |
|
|
|
1940 |
|
|
#else /* CONFIG_CYZ_INTR */
|
1941 |
|
|
|
1942 |
|
|
static void
|
1943 |
|
|
cyz_poll(unsigned long arg)
|
1944 |
|
|
{
|
1945 |
|
|
struct cyclades_card *cinfo;
|
1946 |
|
|
struct cyclades_port *info;
|
1947 |
|
|
struct tty_struct *tty;
|
1948 |
|
|
static volatile struct FIRM_ID *firm_id;
|
1949 |
|
|
static volatile struct ZFW_CTRL *zfw_ctrl;
|
1950 |
|
|
static volatile struct BOARD_CTRL *board_ctrl;
|
1951 |
|
|
static volatile struct CH_CTRL *ch_ctrl;
|
1952 |
|
|
static volatile struct BUF_CTRL *buf_ctrl;
|
1953 |
|
|
int card, port;
|
1954 |
|
|
|
1955 |
|
|
cyz_timerlist.expires = jiffies + (HZ);
|
1956 |
|
|
for (card = 0 ; card < NR_CARDS ; card++){
|
1957 |
|
|
cinfo = &cy_card[card];
|
1958 |
|
|
|
1959 |
|
|
if (!IS_CYC_Z(*cinfo)) continue;
|
1960 |
|
|
if (!ISZLOADED(*cinfo)) continue;
|
1961 |
|
|
|
1962 |
|
|
firm_id = (struct FIRM_ID *)(cinfo->base_addr + ID_ADDRESS);
|
1963 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
1964 |
|
|
(cinfo->base_addr +
|
1965 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
1966 |
|
|
board_ctrl = &(zfw_ctrl->board_ctrl);
|
1967 |
|
|
|
1968 |
|
|
/* Skip first polling cycle to avoid racing conditions with the FW */
|
1969 |
|
|
if (!cinfo->intr_enabled) {
|
1970 |
|
|
cinfo->nports = (int) cy_readl(&board_ctrl->n_channel);
|
1971 |
|
|
cinfo->intr_enabled = 1;
|
1972 |
|
|
continue;
|
1973 |
|
|
}
|
1974 |
|
|
|
1975 |
|
|
cyz_handle_cmd(cinfo);
|
1976 |
|
|
|
1977 |
|
|
for (port = 0 ; port < cinfo->nports ; port++) {
|
1978 |
|
|
info = &cy_port[ port + cinfo->first_line ];
|
1979 |
|
|
tty = info->tty;
|
1980 |
|
|
ch_ctrl = &(zfw_ctrl->ch_ctrl[port]);
|
1981 |
|
|
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);
|
1982 |
|
|
|
1983 |
|
|
cyz_handle_rx(info, ch_ctrl, buf_ctrl);
|
1984 |
|
|
cyz_handle_tx(info, ch_ctrl, buf_ctrl);
|
1985 |
|
|
}
|
1986 |
|
|
/* poll every 'cyz_polling_cycle' period */
|
1987 |
|
|
cyz_timerlist.expires = jiffies + cyz_polling_cycle;
|
1988 |
|
|
}
|
1989 |
|
|
add_timer(&cyz_timerlist);
|
1990 |
|
|
|
1991 |
|
|
return;
|
1992 |
|
|
} /* cyz_poll */
|
1993 |
|
|
|
1994 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
1995 |
|
|
|
1996 |
|
|
/********** End of block of Cyclades-Z specific code *********/
|
1997 |
|
|
/***********************************************************/
|
1998 |
|
|
|
1999 |
|
|
|
2000 |
|
|
/* This is called whenever a port becomes active;
|
2001 |
|
|
interrupts are enabled and DTR & RTS are turned on.
|
2002 |
|
|
*/
|
2003 |
|
|
static int
|
2004 |
|
|
startup(struct cyclades_port * info)
|
2005 |
|
|
{
|
2006 |
|
|
unsigned long flags;
|
2007 |
|
|
int retval = 0;
|
2008 |
|
|
unsigned char *base_addr;
|
2009 |
|
|
int card,chip,channel,index;
|
2010 |
|
|
unsigned long page;
|
2011 |
|
|
|
2012 |
|
|
card = info->card;
|
2013 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
2014 |
|
|
|
2015 |
|
|
page = get_free_page(GFP_KERNEL);
|
2016 |
|
|
if (!page)
|
2017 |
|
|
return -ENOMEM;
|
2018 |
|
|
|
2019 |
|
|
CY_LOCK(info, flags);
|
2020 |
|
|
|
2021 |
|
|
if (info->flags & ASYNC_INITIALIZED){
|
2022 |
|
|
free_page(page);
|
2023 |
|
|
goto errout;
|
2024 |
|
|
}
|
2025 |
|
|
|
2026 |
|
|
if (!info->type){
|
2027 |
|
|
if (info->tty){
|
2028 |
|
|
set_bit(TTY_IO_ERROR, &info->tty->flags);
|
2029 |
|
|
}
|
2030 |
|
|
free_page(page);
|
2031 |
|
|
goto errout;
|
2032 |
|
|
}
|
2033 |
|
|
|
2034 |
|
|
if (info->xmit_buf)
|
2035 |
|
|
free_page(page);
|
2036 |
|
|
else
|
2037 |
|
|
info->xmit_buf = (unsigned char *) page;
|
2038 |
|
|
|
2039 |
|
|
CY_UNLOCK(info, flags);
|
2040 |
|
|
|
2041 |
|
|
set_line_char(info);
|
2042 |
|
|
|
2043 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
2044 |
|
|
chip = channel>>2;
|
2045 |
|
|
channel &= 0x03;
|
2046 |
|
|
index = cy_card[card].bus_index;
|
2047 |
|
|
base_addr = (unsigned char*)
|
2048 |
|
|
(cy_card[card].base_addr + (cy_chip_offset[chip]<<index));
|
2049 |
|
|
|
2050 |
|
|
#ifdef CY_DEBUG_OPEN
|
2051 |
|
|
printk("cyc startup card %d, chip %d, channel %d, base_addr %lx\n",
|
2052 |
|
|
card, chip, channel, (long)base_addr);/**/
|
2053 |
|
|
#endif
|
2054 |
|
|
|
2055 |
|
|
CY_LOCK(info, flags);
|
2056 |
|
|
|
2057 |
|
|
cy_writeb((ulong)base_addr+(CyCAR<<index), (u_char)channel);
|
2058 |
|
|
|
2059 |
|
|
cy_writeb((ulong)base_addr+(CyRTPR<<index), (info->default_timeout
|
2060 |
|
|
? info->default_timeout : 0x02)); /* 10ms rx timeout */
|
2061 |
|
|
|
2062 |
|
|
cyy_issue_cmd(base_addr,CyCHAN_CTL|CyENB_RCVR|CyENB_XMTR,index);
|
2063 |
|
|
|
2064 |
|
|
cy_writeb((ulong)base_addr+(CyCAR<<index), (u_char)channel);
|
2065 |
|
|
cy_writeb((ulong)base_addr+(CyMSVR1<<index), CyRTS);
|
2066 |
|
|
cy_writeb((ulong)base_addr+(CyMSVR2<<index), CyDTR);
|
2067 |
|
|
|
2068 |
|
|
#ifdef CY_DEBUG_DTR
|
2069 |
|
|
printk("cyc:startup raising DTR\n");
|
2070 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
2071 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
2072 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
2073 |
|
|
#endif
|
2074 |
|
|
|
2075 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
2076 |
|
|
cy_readb(base_addr+(CySRER<<index)) | CyRxData);
|
2077 |
|
|
info->flags |= ASYNC_INITIALIZED;
|
2078 |
|
|
|
2079 |
|
|
if (info->tty){
|
2080 |
|
|
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
2081 |
|
|
}
|
2082 |
|
|
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
|
2083 |
|
|
info->breakon = info->breakoff = 0;
|
2084 |
|
|
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
|
2085 |
|
|
info->idle_stats.in_use =
|
2086 |
|
|
info->idle_stats.recv_idle =
|
2087 |
|
|
info->idle_stats.xmit_idle = jiffies;
|
2088 |
|
|
|
2089 |
|
|
CY_UNLOCK(info, flags);
|
2090 |
|
|
|
2091 |
|
|
} else {
|
2092 |
|
|
struct FIRM_ID *firm_id;
|
2093 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
2094 |
|
|
struct BOARD_CTRL *board_ctrl;
|
2095 |
|
|
struct CH_CTRL *ch_ctrl;
|
2096 |
|
|
int retval;
|
2097 |
|
|
|
2098 |
|
|
base_addr = (unsigned char*) (cy_card[card].base_addr);
|
2099 |
|
|
|
2100 |
|
|
firm_id = (struct FIRM_ID *) (base_addr + ID_ADDRESS);
|
2101 |
|
|
if (!ISZLOADED(cy_card[card])){
|
2102 |
|
|
return -ENODEV;
|
2103 |
|
|
}
|
2104 |
|
|
|
2105 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
2106 |
|
|
(cy_card[card].base_addr +
|
2107 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
2108 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
2109 |
|
|
ch_ctrl = zfw_ctrl->ch_ctrl;
|
2110 |
|
|
|
2111 |
|
|
#ifdef CY_DEBUG_OPEN
|
2112 |
|
|
printk("cyc startup Z card %d, channel %d, base_addr %lx\n",
|
2113 |
|
|
card, channel, (long)base_addr);/**/
|
2114 |
|
|
#endif
|
2115 |
|
|
|
2116 |
|
|
CY_LOCK(info, flags);
|
2117 |
|
|
|
2118 |
|
|
cy_writel(&ch_ctrl[channel].op_mode, C_CH_ENABLE);
|
2119 |
|
|
#ifdef Z_WAKE
|
2120 |
|
|
#ifdef CONFIG_CYZ_INTR
|
2121 |
|
|
cy_writel(&ch_ctrl[channel].intr_enable,
|
2122 |
|
|
C_IN_TXBEMPTY|C_IN_TXLOWWM|C_IN_RXHIWM|C_IN_RXNNDT|
|
2123 |
|
|
C_IN_IOCTLW|
|
2124 |
|
|
C_IN_MDCD);
|
2125 |
|
|
#else
|
2126 |
|
|
cy_writel(&ch_ctrl[channel].intr_enable,
|
2127 |
|
|
C_IN_IOCTLW|
|
2128 |
|
|
C_IN_MDCD);
|
2129 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
2130 |
|
|
#else
|
2131 |
|
|
#ifdef CONFIG_CYZ_INTR
|
2132 |
|
|
cy_writel(&ch_ctrl[channel].intr_enable,
|
2133 |
|
|
C_IN_TXBEMPTY|C_IN_TXLOWWM|C_IN_RXHIWM|C_IN_RXNNDT|
|
2134 |
|
|
C_IN_MDCD);
|
2135 |
|
|
#else
|
2136 |
|
|
cy_writel(&ch_ctrl[channel].intr_enable,
|
2137 |
|
|
C_IN_MDCD);
|
2138 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
2139 |
|
|
#endif /* Z_WAKE */
|
2140 |
|
|
|
2141 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_IOCTL, 0L);
|
2142 |
|
|
if (retval != 0){
|
2143 |
|
|
printk("cyc:startup(1) retval on ttyC%d was %x\n",
|
2144 |
|
|
info->line, retval);
|
2145 |
|
|
}
|
2146 |
|
|
|
2147 |
|
|
/* Flush RX buffers before raising DTR and RTS */
|
2148 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_FLUSH_RX, 0L);
|
2149 |
|
|
if (retval != 0){
|
2150 |
|
|
printk("cyc:startup(2) retval on ttyC%d was %x\n",
|
2151 |
|
|
info->line, retval);
|
2152 |
|
|
}
|
2153 |
|
|
|
2154 |
|
|
/* set timeout !!! */
|
2155 |
|
|
/* set RTS and DTR !!! */
|
2156 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
2157 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) | C_RS_RTS | C_RS_DTR) ;
|
2158 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
2159 |
|
|
channel, C_CM_IOCTLM, 0L);
|
2160 |
|
|
if (retval != 0){
|
2161 |
|
|
printk("cyc:startup(3) retval on ttyC%d was %x\n",
|
2162 |
|
|
info->line, retval);
|
2163 |
|
|
}
|
2164 |
|
|
#ifdef CY_DEBUG_DTR
|
2165 |
|
|
printk("cyc:startup raising Z DTR\n");
|
2166 |
|
|
#endif
|
2167 |
|
|
|
2168 |
|
|
/* enable send, recv, modem !!! */
|
2169 |
|
|
|
2170 |
|
|
info->flags |= ASYNC_INITIALIZED;
|
2171 |
|
|
if (info->tty){
|
2172 |
|
|
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
2173 |
|
|
}
|
2174 |
|
|
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
|
2175 |
|
|
info->breakon = info->breakoff = 0;
|
2176 |
|
|
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
|
2177 |
|
|
info->idle_stats.in_use =
|
2178 |
|
|
info->idle_stats.recv_idle =
|
2179 |
|
|
info->idle_stats.xmit_idle = jiffies;
|
2180 |
|
|
|
2181 |
|
|
CY_UNLOCK(info, flags);
|
2182 |
|
|
}
|
2183 |
|
|
|
2184 |
|
|
#ifdef CY_DEBUG_OPEN
|
2185 |
|
|
printk(" cyc startup done\n");
|
2186 |
|
|
#endif
|
2187 |
|
|
return 0;
|
2188 |
|
|
|
2189 |
|
|
errout:
|
2190 |
|
|
CY_UNLOCK(info, flags);
|
2191 |
|
|
return retval;
|
2192 |
|
|
} /* startup */
|
2193 |
|
|
|
2194 |
|
|
|
2195 |
|
|
static void
|
2196 |
|
|
start_xmit( struct cyclades_port *info )
|
2197 |
|
|
{
|
2198 |
|
|
unsigned long flags;
|
2199 |
|
|
unsigned char *base_addr;
|
2200 |
|
|
int card,chip,channel,index;
|
2201 |
|
|
|
2202 |
|
|
card = info->card;
|
2203 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
2204 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
2205 |
|
|
chip = channel>>2;
|
2206 |
|
|
channel &= 0x03;
|
2207 |
|
|
index = cy_card[card].bus_index;
|
2208 |
|
|
base_addr = (unsigned char*)
|
2209 |
|
|
(cy_card[card].base_addr
|
2210 |
|
|
+ (cy_chip_offset[chip]<<index));
|
2211 |
|
|
|
2212 |
|
|
CY_LOCK(info, flags);
|
2213 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), channel);
|
2214 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
2215 |
|
|
cy_readb(base_addr+(CySRER<<index)) | CyTxRdy);
|
2216 |
|
|
CY_UNLOCK(info, flags);
|
2217 |
|
|
} else {
|
2218 |
|
|
#ifdef CONFIG_CYZ_INTR
|
2219 |
|
|
int retval;
|
2220 |
|
|
|
2221 |
|
|
CY_LOCK(info, flags);
|
2222 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_INTBACK, 0L);
|
2223 |
|
|
if (retval != 0){
|
2224 |
|
|
printk("cyc:start_xmit retval on ttyC%d was %x\n",
|
2225 |
|
|
info->line, retval);
|
2226 |
|
|
}
|
2227 |
|
|
CY_UNLOCK(info, flags);
|
2228 |
|
|
#else /* CONFIG_CYZ_INTR */
|
2229 |
|
|
/* Don't have to do anything at this time */
|
2230 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
2231 |
|
|
}
|
2232 |
|
|
} /* start_xmit */
|
2233 |
|
|
|
2234 |
|
|
/*
|
2235 |
|
|
* This routine shuts down a serial port; interrupts are disabled,
|
2236 |
|
|
* and DTR is dropped if the hangup on close termio flag is on.
|
2237 |
|
|
*/
|
2238 |
|
|
static void
|
2239 |
|
|
shutdown(struct cyclades_port * info)
|
2240 |
|
|
{
|
2241 |
|
|
unsigned long flags;
|
2242 |
|
|
unsigned char *base_addr;
|
2243 |
|
|
int card,chip,channel,index;
|
2244 |
|
|
|
2245 |
|
|
if (!(info->flags & ASYNC_INITIALIZED)){
|
2246 |
|
|
return;
|
2247 |
|
|
}
|
2248 |
|
|
|
2249 |
|
|
card = info->card;
|
2250 |
|
|
channel = info->line - cy_card[card].first_line;
|
2251 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
2252 |
|
|
chip = channel>>2;
|
2253 |
|
|
channel &= 0x03;
|
2254 |
|
|
index = cy_card[card].bus_index;
|
2255 |
|
|
base_addr = (unsigned char*)
|
2256 |
|
|
(cy_card[card].base_addr
|
2257 |
|
|
+ (cy_chip_offset[chip]<<index));
|
2258 |
|
|
|
2259 |
|
|
#ifdef CY_DEBUG_OPEN
|
2260 |
|
|
printk("cyc shutdown Y card %d, chip %d, channel %d, base_addr %lx\n",
|
2261 |
|
|
card, chip, channel, (long)base_addr);
|
2262 |
|
|
#endif
|
2263 |
|
|
|
2264 |
|
|
CY_LOCK(info, flags);
|
2265 |
|
|
|
2266 |
|
|
/* Clear delta_msr_wait queue to avoid mem leaks. */
|
2267 |
|
|
wake_up_interruptible(&info->delta_msr_wait);
|
2268 |
|
|
|
2269 |
|
|
if (info->xmit_buf){
|
2270 |
|
|
unsigned char * temp;
|
2271 |
|
|
temp = info->xmit_buf;
|
2272 |
|
|
info->xmit_buf = 0;
|
2273 |
|
|
free_page((unsigned long) temp);
|
2274 |
|
|
}
|
2275 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
2276 |
|
|
if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
|
2277 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
2278 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
2279 |
|
|
#ifdef CY_DEBUG_DTR
|
2280 |
|
|
printk("cyc shutdown dropping DTR\n");
|
2281 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
2282 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
2283 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
2284 |
|
|
#endif
|
2285 |
|
|
}
|
2286 |
|
|
cyy_issue_cmd(base_addr,CyCHAN_CTL|CyDIS_RCVR,index);
|
2287 |
|
|
/* it may be appropriate to clear _XMIT at
|
2288 |
|
|
some later date (after testing)!!! */
|
2289 |
|
|
|
2290 |
|
|
if (info->tty){
|
2291 |
|
|
set_bit(TTY_IO_ERROR, &info->tty->flags);
|
2292 |
|
|
}
|
2293 |
|
|
info->flags &= ~ASYNC_INITIALIZED;
|
2294 |
|
|
CY_UNLOCK(info, flags);
|
2295 |
|
|
} else {
|
2296 |
|
|
struct FIRM_ID *firm_id;
|
2297 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
2298 |
|
|
struct BOARD_CTRL *board_ctrl;
|
2299 |
|
|
struct CH_CTRL *ch_ctrl;
|
2300 |
|
|
int retval;
|
2301 |
|
|
|
2302 |
|
|
base_addr = (unsigned char*) (cy_card[card].base_addr);
|
2303 |
|
|
#ifdef CY_DEBUG_OPEN
|
2304 |
|
|
printk("cyc shutdown Z card %d, channel %d, base_addr %lx\n",
|
2305 |
|
|
card, channel, (long)base_addr);
|
2306 |
|
|
#endif
|
2307 |
|
|
|
2308 |
|
|
firm_id = (struct FIRM_ID *) (base_addr + ID_ADDRESS);
|
2309 |
|
|
if (!ISZLOADED(cy_card[card])) {
|
2310 |
|
|
return;
|
2311 |
|
|
}
|
2312 |
|
|
|
2313 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
2314 |
|
|
(cy_card[card].base_addr +
|
2315 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
2316 |
|
|
board_ctrl = &(zfw_ctrl->board_ctrl);
|
2317 |
|
|
ch_ctrl = zfw_ctrl->ch_ctrl;
|
2318 |
|
|
|
2319 |
|
|
CY_LOCK(info, flags);
|
2320 |
|
|
|
2321 |
|
|
if (info->xmit_buf){
|
2322 |
|
|
unsigned char * temp;
|
2323 |
|
|
temp = info->xmit_buf;
|
2324 |
|
|
info->xmit_buf = 0;
|
2325 |
|
|
free_page((unsigned long) temp);
|
2326 |
|
|
}
|
2327 |
|
|
|
2328 |
|
|
if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
|
2329 |
|
|
cy_writel((u_long)&ch_ctrl[channel].rs_control,
|
2330 |
|
|
(uclong)(cy_readl(&ch_ctrl[channel].rs_control) &
|
2331 |
|
|
~(C_RS_RTS | C_RS_DTR)));
|
2332 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
2333 |
|
|
channel, C_CM_IOCTLM, 0L);
|
2334 |
|
|
if (retval != 0){
|
2335 |
|
|
printk("cyc:shutdown retval on ttyC%d was %x\n",
|
2336 |
|
|
info->line, retval);
|
2337 |
|
|
}
|
2338 |
|
|
#ifdef CY_DEBUG_DTR
|
2339 |
|
|
printk("cyc:shutdown dropping Z DTR\n");
|
2340 |
|
|
#endif
|
2341 |
|
|
}
|
2342 |
|
|
|
2343 |
|
|
if (info->tty){
|
2344 |
|
|
set_bit(TTY_IO_ERROR, &info->tty->flags);
|
2345 |
|
|
}
|
2346 |
|
|
info->flags &= ~ASYNC_INITIALIZED;
|
2347 |
|
|
|
2348 |
|
|
CY_UNLOCK(info, flags);
|
2349 |
|
|
}
|
2350 |
|
|
|
2351 |
|
|
#ifdef CY_DEBUG_OPEN
|
2352 |
|
|
printk(" cyc shutdown done\n");
|
2353 |
|
|
#endif
|
2354 |
|
|
return;
|
2355 |
|
|
} /* shutdown */
|
2356 |
|
|
|
2357 |
|
|
|
2358 |
|
|
/*
|
2359 |
|
|
* ------------------------------------------------------------
|
2360 |
|
|
* cy_open() and friends
|
2361 |
|
|
* ------------------------------------------------------------
|
2362 |
|
|
*/
|
2363 |
|
|
|
2364 |
|
|
static int
|
2365 |
|
|
block_til_ready(struct tty_struct *tty, struct file * filp,
|
2366 |
|
|
struct cyclades_port *info)
|
2367 |
|
|
{
|
2368 |
|
|
DECLARE_WAITQUEUE(wait, current);
|
2369 |
|
|
struct cyclades_card *cinfo;
|
2370 |
|
|
unsigned long flags;
|
2371 |
|
|
int chip, channel,index;
|
2372 |
|
|
int retval;
|
2373 |
|
|
char *base_addr;
|
2374 |
|
|
|
2375 |
|
|
cinfo = &cy_card[info->card];
|
2376 |
|
|
channel = info->line - cinfo->first_line;
|
2377 |
|
|
|
2378 |
|
|
/*
|
2379 |
|
|
* If the device is in the middle of being closed, then block
|
2380 |
|
|
* until it's done, and then try again.
|
2381 |
|
|
*/
|
2382 |
|
|
if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
|
2383 |
|
|
if (info->flags & ASYNC_CLOSING) {
|
2384 |
|
|
interruptible_sleep_on(&info->close_wait);
|
2385 |
|
|
}
|
2386 |
|
|
return ((info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
|
2387 |
|
|
}
|
2388 |
|
|
|
2389 |
|
|
/*
|
2390 |
|
|
* If this is a callout device, then just make sure the normal
|
2391 |
|
|
* device isn't being used.
|
2392 |
|
|
*/
|
2393 |
|
|
if (tty->driver.subtype == SERIAL_TYPE_CALLOUT) {
|
2394 |
|
|
if (info->flags & ASYNC_NORMAL_ACTIVE){
|
2395 |
|
|
return -EBUSY;
|
2396 |
|
|
}
|
2397 |
|
|
if ((info->flags & ASYNC_CALLOUT_ACTIVE) &&
|
2398 |
|
|
(info->flags & ASYNC_SESSION_LOCKOUT) &&
|
2399 |
|
|
(info->session != current->session)){
|
2400 |
|
|
return -EBUSY;
|
2401 |
|
|
}
|
2402 |
|
|
if ((info->flags & ASYNC_CALLOUT_ACTIVE) &&
|
2403 |
|
|
(info->flags & ASYNC_PGRP_LOCKOUT) &&
|
2404 |
|
|
(info->pgrp != current->pgrp)){
|
2405 |
|
|
return -EBUSY;
|
2406 |
|
|
}
|
2407 |
|
|
info->flags |= ASYNC_CALLOUT_ACTIVE;
|
2408 |
|
|
return 0;
|
2409 |
|
|
}
|
2410 |
|
|
|
2411 |
|
|
/*
|
2412 |
|
|
* If non-blocking mode is set, then make the check up front
|
2413 |
|
|
* and then exit.
|
2414 |
|
|
*/
|
2415 |
|
|
if ((filp->f_flags & O_NONBLOCK) ||
|
2416 |
|
|
(tty->flags & (1 << TTY_IO_ERROR))) {
|
2417 |
|
|
if (info->flags & ASYNC_CALLOUT_ACTIVE){
|
2418 |
|
|
return -EBUSY;
|
2419 |
|
|
}
|
2420 |
|
|
info->flags |= ASYNC_NORMAL_ACTIVE;
|
2421 |
|
|
return 0;
|
2422 |
|
|
}
|
2423 |
|
|
|
2424 |
|
|
/*
|
2425 |
|
|
* Block waiting for the carrier detect and the line to become
|
2426 |
|
|
* free (i.e., not in use by the callout). While we are in
|
2427 |
|
|
* this loop, info->count is dropped by one, so that
|
2428 |
|
|
* cy_close() knows when to free things. We restore it upon
|
2429 |
|
|
* exit, either normal or abnormal.
|
2430 |
|
|
*/
|
2431 |
|
|
retval = 0;
|
2432 |
|
|
add_wait_queue(&info->open_wait, &wait);
|
2433 |
|
|
#ifdef CY_DEBUG_OPEN
|
2434 |
|
|
printk("cyc block_til_ready before block: ttyC%d, count = %d\n",
|
2435 |
|
|
info->line, info->count);/**/
|
2436 |
|
|
#endif
|
2437 |
|
|
CY_LOCK(info, flags);
|
2438 |
|
|
if (!tty_hung_up_p(filp))
|
2439 |
|
|
info->count--;
|
2440 |
|
|
CY_UNLOCK(info, flags);
|
2441 |
|
|
#ifdef CY_DEBUG_COUNT
|
2442 |
|
|
printk("cyc block_til_ready: (%d): decrementing count to %d\n",
|
2443 |
|
|
current->pid, info->count);
|
2444 |
|
|
#endif
|
2445 |
|
|
info->blocked_open++;
|
2446 |
|
|
|
2447 |
|
|
if (!IS_CYC_Z(*cinfo)) {
|
2448 |
|
|
chip = channel>>2;
|
2449 |
|
|
channel &= 0x03;
|
2450 |
|
|
index = cinfo->bus_index;
|
2451 |
|
|
base_addr = (char *)(cinfo->base_addr
|
2452 |
|
|
+ (cy_chip_offset[chip]<<index));
|
2453 |
|
|
|
2454 |
|
|
while (1) {
|
2455 |
|
|
CY_LOCK(info, flags);
|
2456 |
|
|
if (!(info->flags & ASYNC_CALLOUT_ACTIVE) &&
|
2457 |
|
|
(tty->termios->c_cflag & CBAUD)){
|
2458 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
2459 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
2460 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
2461 |
|
|
#ifdef CY_DEBUG_DTR
|
2462 |
|
|
printk("cyc:block_til_ready raising DTR\n");
|
2463 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
2464 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
2465 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
2466 |
|
|
#endif
|
2467 |
|
|
}
|
2468 |
|
|
CY_UNLOCK(info, flags);
|
2469 |
|
|
|
2470 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
2471 |
|
|
if (tty_hung_up_p(filp)
|
2472 |
|
|
|| !(info->flags & ASYNC_INITIALIZED) ){
|
2473 |
|
|
retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
|
2474 |
|
|
-EAGAIN : -ERESTARTSYS);
|
2475 |
|
|
break;
|
2476 |
|
|
}
|
2477 |
|
|
|
2478 |
|
|
CY_LOCK(info, flags);
|
2479 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
2480 |
|
|
if (!(info->flags & ASYNC_CALLOUT_ACTIVE)
|
2481 |
|
|
&& !(info->flags & ASYNC_CLOSING)
|
2482 |
|
|
&& (C_CLOCAL(tty)
|
2483 |
|
|
|| (cy_readb(base_addr+(CyMSVR1<<index)) & CyDCD))) {
|
2484 |
|
|
CY_UNLOCK(info, flags);
|
2485 |
|
|
break;
|
2486 |
|
|
}
|
2487 |
|
|
CY_UNLOCK(info, flags);
|
2488 |
|
|
|
2489 |
|
|
if (signal_pending(current)) {
|
2490 |
|
|
retval = -ERESTARTSYS;
|
2491 |
|
|
break;
|
2492 |
|
|
}
|
2493 |
|
|
#ifdef CY_DEBUG_OPEN
|
2494 |
|
|
printk("cyc block_til_ready blocking: ttyC%d, count = %d\n",
|
2495 |
|
|
info->line, info->count);/**/
|
2496 |
|
|
#endif
|
2497 |
|
|
schedule();
|
2498 |
|
|
}
|
2499 |
|
|
} else {
|
2500 |
|
|
struct FIRM_ID *firm_id;
|
2501 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
2502 |
|
|
struct BOARD_CTRL *board_ctrl;
|
2503 |
|
|
struct CH_CTRL *ch_ctrl;
|
2504 |
|
|
int retval;
|
2505 |
|
|
|
2506 |
|
|
base_addr = (char *)(cinfo->base_addr);
|
2507 |
|
|
firm_id = (struct FIRM_ID *)
|
2508 |
|
|
(base_addr + ID_ADDRESS);
|
2509 |
|
|
if (!ISZLOADED(*cinfo)){
|
2510 |
|
|
current->state = TASK_RUNNING;
|
2511 |
|
|
remove_wait_queue(&info->open_wait, &wait);
|
2512 |
|
|
return -EINVAL;
|
2513 |
|
|
}
|
2514 |
|
|
|
2515 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
2516 |
|
|
(base_addr + (cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
2517 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
2518 |
|
|
ch_ctrl = zfw_ctrl->ch_ctrl;
|
2519 |
|
|
|
2520 |
|
|
while (1) {
|
2521 |
|
|
if (!(info->flags & ASYNC_CALLOUT_ACTIVE) &&
|
2522 |
|
|
(tty->termios->c_cflag & CBAUD)){
|
2523 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
2524 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) |
|
2525 |
|
|
(C_RS_RTS | C_RS_DTR));
|
2526 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
2527 |
|
|
channel, C_CM_IOCTLM, 0L);
|
2528 |
|
|
if (retval != 0){
|
2529 |
|
|
printk("cyc:block_til_ready retval on ttyC%d was %x\n",
|
2530 |
|
|
info->line, retval);
|
2531 |
|
|
}
|
2532 |
|
|
#ifdef CY_DEBUG_DTR
|
2533 |
|
|
printk("cyc:block_til_ready raising Z DTR\n");
|
2534 |
|
|
#endif
|
2535 |
|
|
}
|
2536 |
|
|
|
2537 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
2538 |
|
|
if (tty_hung_up_p(filp)
|
2539 |
|
|
|| !(info->flags & ASYNC_INITIALIZED) ){
|
2540 |
|
|
retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
|
2541 |
|
|
-EAGAIN : -ERESTARTSYS);
|
2542 |
|
|
break;
|
2543 |
|
|
}
|
2544 |
|
|
if (!(info->flags & ASYNC_CALLOUT_ACTIVE)
|
2545 |
|
|
&& !(info->flags & ASYNC_CLOSING)
|
2546 |
|
|
&& (C_CLOCAL(tty)
|
2547 |
|
|
|| (cy_readl(&ch_ctrl[channel].rs_status) & C_RS_DCD))) {
|
2548 |
|
|
break;
|
2549 |
|
|
}
|
2550 |
|
|
if (signal_pending(current)) {
|
2551 |
|
|
retval = -ERESTARTSYS;
|
2552 |
|
|
break;
|
2553 |
|
|
}
|
2554 |
|
|
#ifdef CY_DEBUG_OPEN
|
2555 |
|
|
printk("cyc block_til_ready blocking: ttyC%d, count = %d\n",
|
2556 |
|
|
info->line, info->count);/**/
|
2557 |
|
|
#endif
|
2558 |
|
|
schedule();
|
2559 |
|
|
}
|
2560 |
|
|
}
|
2561 |
|
|
current->state = TASK_RUNNING;
|
2562 |
|
|
remove_wait_queue(&info->open_wait, &wait);
|
2563 |
|
|
if (!tty_hung_up_p(filp)){
|
2564 |
|
|
info->count++;
|
2565 |
|
|
#ifdef CY_DEBUG_COUNT
|
2566 |
|
|
printk("cyc:block_til_ready (%d): incrementing count to %d\n",
|
2567 |
|
|
current->pid, info->count);
|
2568 |
|
|
#endif
|
2569 |
|
|
}
|
2570 |
|
|
info->blocked_open--;
|
2571 |
|
|
#ifdef CY_DEBUG_OPEN
|
2572 |
|
|
printk("cyc:block_til_ready after blocking: ttyC%d, count = %d\n",
|
2573 |
|
|
info->line, info->count);/**/
|
2574 |
|
|
#endif
|
2575 |
|
|
if (retval)
|
2576 |
|
|
return retval;
|
2577 |
|
|
info->flags |= ASYNC_NORMAL_ACTIVE;
|
2578 |
|
|
return 0;
|
2579 |
|
|
} /* block_til_ready */
|
2580 |
|
|
|
2581 |
|
|
|
2582 |
|
|
/*
|
2583 |
|
|
* This routine is called whenever a serial port is opened. It
|
2584 |
|
|
* performs the serial-specific initialization for the tty structure.
|
2585 |
|
|
*/
|
2586 |
|
|
static int
|
2587 |
|
|
cy_open(struct tty_struct *tty, struct file * filp)
|
2588 |
|
|
{
|
2589 |
|
|
struct cyclades_port *info;
|
2590 |
|
|
int retval, line;
|
2591 |
|
|
unsigned long page;
|
2592 |
|
|
|
2593 |
|
|
MOD_INC_USE_COUNT;
|
2594 |
|
|
line = MINOR(tty->device) - tty->driver.minor_start;
|
2595 |
|
|
if ((line < 0) || (NR_PORTS <= line)){
|
2596 |
|
|
MOD_DEC_USE_COUNT;
|
2597 |
|
|
return -ENODEV;
|
2598 |
|
|
}
|
2599 |
|
|
info = &cy_port[line];
|
2600 |
|
|
if (info->line < 0){
|
2601 |
|
|
MOD_DEC_USE_COUNT;
|
2602 |
|
|
return -ENODEV;
|
2603 |
|
|
}
|
2604 |
|
|
|
2605 |
|
|
/* If the card's firmware hasn't been loaded,
|
2606 |
|
|
treat it as absent from the system. This
|
2607 |
|
|
will make the user pay attention.
|
2608 |
|
|
*/
|
2609 |
|
|
if (IS_CYC_Z(cy_card[info->card])) {
|
2610 |
|
|
if (!ISZLOADED(cy_card[info->card])) {
|
2611 |
|
|
if (((ZE_V1 ==cy_readl(&((struct RUNTIME_9060 *)
|
2612 |
|
|
((cy_card[info->card]).ctl_addr))->mail_box_0)) &&
|
2613 |
|
|
Z_FPGA_CHECK(cy_card[info->card])) &&
|
2614 |
|
|
(ZFIRM_HLT==cy_readl(&((struct FIRM_ID *)
|
2615 |
|
|
((cy_card[info->card]).base_addr+ID_ADDRESS))->signature)))
|
2616 |
|
|
{
|
2617 |
|
|
printk ("cyc:Cyclades-Z Error: you need an external power supply for this number of ports.\n\rFirmware halted.\r\n");
|
2618 |
|
|
} else {
|
2619 |
|
|
printk("cyc:Cyclades-Z firmware not yet loaded\n");
|
2620 |
|
|
}
|
2621 |
|
|
MOD_DEC_USE_COUNT;
|
2622 |
|
|
return -ENODEV;
|
2623 |
|
|
}
|
2624 |
|
|
#ifdef CONFIG_CYZ_INTR
|
2625 |
|
|
else {
|
2626 |
|
|
/* In case this Z board is operating in interrupt mode, its
|
2627 |
|
|
interrupts should be enabled as soon as the first open happens
|
2628 |
|
|
to one of its ports. */
|
2629 |
|
|
if (!cy_card[info->card].intr_enabled) {
|
2630 |
|
|
/* Enable interrupts on the PLX chip */
|
2631 |
|
|
cy_writew(cy_card[info->card].ctl_addr+0x68,
|
2632 |
|
|
cy_readw(cy_card[info->card].ctl_addr+0x68)|0x0900);
|
2633 |
|
|
/* Enable interrupts on the FW */
|
2634 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
2635 |
|
|
0, C_CM_IRQ_ENBL, 0L);
|
2636 |
|
|
if (retval != 0){
|
2637 |
|
|
printk("cyc:IRQ enable retval was %x\n", retval);
|
2638 |
|
|
}
|
2639 |
|
|
cy_card[info->card].intr_enabled = 1;
|
2640 |
|
|
}
|
2641 |
|
|
}
|
2642 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
2643 |
|
|
}
|
2644 |
|
|
#ifdef CY_DEBUG_OTHER
|
2645 |
|
|
printk("cyc:cy_open ttyC%d\n", info->line); /* */
|
2646 |
|
|
#endif
|
2647 |
|
|
tty->driver_data = info;
|
2648 |
|
|
info->tty = tty;
|
2649 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_open")){
|
2650 |
|
|
return -ENODEV;
|
2651 |
|
|
}
|
2652 |
|
|
#ifdef CY_DEBUG_OPEN
|
2653 |
|
|
printk("cyc:cy_open ttyC%d, count = %d\n",
|
2654 |
|
|
info->line, info->count);/**/
|
2655 |
|
|
#endif
|
2656 |
|
|
info->count++;
|
2657 |
|
|
#ifdef CY_DEBUG_COUNT
|
2658 |
|
|
printk("cyc:cy_open (%d): incrementing count to %d\n",
|
2659 |
|
|
current->pid, info->count);
|
2660 |
|
|
#endif
|
2661 |
|
|
if (!tmp_buf) {
|
2662 |
|
|
page = get_free_page(GFP_KERNEL);
|
2663 |
|
|
if (!page)
|
2664 |
|
|
return -ENOMEM;
|
2665 |
|
|
if (tmp_buf)
|
2666 |
|
|
free_page(page);
|
2667 |
|
|
else
|
2668 |
|
|
tmp_buf = (unsigned char *) page;
|
2669 |
|
|
}
|
2670 |
|
|
|
2671 |
|
|
/*
|
2672 |
|
|
* If the port is the middle of closing, bail out now
|
2673 |
|
|
*/
|
2674 |
|
|
if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
|
2675 |
|
|
if (info->flags & ASYNC_CLOSING)
|
2676 |
|
|
interruptible_sleep_on(&info->close_wait);
|
2677 |
|
|
return ((info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
|
2678 |
|
|
}
|
2679 |
|
|
|
2680 |
|
|
/*
|
2681 |
|
|
* Start up serial port
|
2682 |
|
|
*/
|
2683 |
|
|
retval = startup(info);
|
2684 |
|
|
if (retval){
|
2685 |
|
|
return retval;
|
2686 |
|
|
}
|
2687 |
|
|
|
2688 |
|
|
retval = block_til_ready(tty, filp, info);
|
2689 |
|
|
if (retval) {
|
2690 |
|
|
#ifdef CY_DEBUG_OPEN
|
2691 |
|
|
printk("cyc:cy_open returning after block_til_ready with %d\n",
|
2692 |
|
|
retval);
|
2693 |
|
|
#endif
|
2694 |
|
|
return retval;
|
2695 |
|
|
}
|
2696 |
|
|
|
2697 |
|
|
if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
|
2698 |
|
|
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
|
2699 |
|
|
*tty->termios = info->normal_termios;
|
2700 |
|
|
else
|
2701 |
|
|
*tty->termios = info->callout_termios;
|
2702 |
|
|
}
|
2703 |
|
|
|
2704 |
|
|
info->session = current->session;
|
2705 |
|
|
info->pgrp = current->pgrp;
|
2706 |
|
|
|
2707 |
|
|
#ifdef CY_DEBUG_OPEN
|
2708 |
|
|
printk(" cyc:cy_open done\n");/**/
|
2709 |
|
|
#endif
|
2710 |
|
|
|
2711 |
|
|
return 0;
|
2712 |
|
|
} /* cy_open */
|
2713 |
|
|
|
2714 |
|
|
|
2715 |
|
|
/*
|
2716 |
|
|
* cy_wait_until_sent() --- wait until the transmitter is empty
|
2717 |
|
|
*/
|
2718 |
|
|
static void
|
2719 |
|
|
cy_wait_until_sent(struct tty_struct *tty, int timeout)
|
2720 |
|
|
{
|
2721 |
|
|
struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
|
2722 |
|
|
unsigned char *base_addr;
|
2723 |
|
|
int card,chip,channel,index;
|
2724 |
|
|
unsigned long orig_jiffies, char_time;
|
2725 |
|
|
|
2726 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_wait_until_sent"))
|
2727 |
|
|
return;
|
2728 |
|
|
|
2729 |
|
|
if (info->xmit_fifo_size == 0)
|
2730 |
|
|
return; /* Just in case.... */
|
2731 |
|
|
|
2732 |
|
|
|
2733 |
|
|
orig_jiffies = jiffies;
|
2734 |
|
|
/*
|
2735 |
|
|
* Set the check interval to be 1/5 of the estimated time to
|
2736 |
|
|
* send a single character, and make it at least 1. The check
|
2737 |
|
|
* interval should also be less than the timeout.
|
2738 |
|
|
*
|
2739 |
|
|
* Note: we have to use pretty tight timings here to satisfy
|
2740 |
|
|
* the NIST-PCTS.
|
2741 |
|
|
*/
|
2742 |
|
|
char_time = (info->timeout - HZ/50) / info->xmit_fifo_size;
|
2743 |
|
|
char_time = char_time / 5;
|
2744 |
|
|
if (char_time == 0)
|
2745 |
|
|
char_time = 1;
|
2746 |
|
|
if (timeout < 0)
|
2747 |
|
|
timeout = 0;
|
2748 |
|
|
if (timeout)
|
2749 |
|
|
char_time = MIN(char_time, timeout);
|
2750 |
|
|
/*
|
2751 |
|
|
* If the transmitter hasn't cleared in twice the approximate
|
2752 |
|
|
* amount of time to send the entire FIFO, it probably won't
|
2753 |
|
|
* ever clear. This assumes the UART isn't doing flow
|
2754 |
|
|
* control, which is currently the case. Hence, if it ever
|
2755 |
|
|
* takes longer than info->timeout, this is probably due to a
|
2756 |
|
|
* UART bug of some kind. So, we clamp the timeout parameter at
|
2757 |
|
|
* 2*info->timeout.
|
2758 |
|
|
*/
|
2759 |
|
|
if (!timeout || timeout > 2*info->timeout)
|
2760 |
|
|
timeout = 2*info->timeout;
|
2761 |
|
|
#ifdef CY_DEBUG_WAIT_UNTIL_SENT
|
2762 |
|
|
printk("In cy_wait_until_sent(%d) check=%lu...", timeout, char_time);
|
2763 |
|
|
printk("jiff=%lu...", jiffies);
|
2764 |
|
|
#endif
|
2765 |
|
|
card = info->card;
|
2766 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
2767 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
2768 |
|
|
chip = channel>>2;
|
2769 |
|
|
channel &= 0x03;
|
2770 |
|
|
index = cy_card[card].bus_index;
|
2771 |
|
|
base_addr = (unsigned char *)
|
2772 |
|
|
(cy_card[card].base_addr + (cy_chip_offset[chip]<<index));
|
2773 |
|
|
while (cy_readb(base_addr+(CySRER<<index)) & CyTxRdy) {
|
2774 |
|
|
#ifdef CY_DEBUG_WAIT_UNTIL_SENT
|
2775 |
|
|
printk("Not clean (jiff=%lu)...", jiffies);
|
2776 |
|
|
#endif
|
2777 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
2778 |
|
|
schedule_timeout(char_time);
|
2779 |
|
|
if (signal_pending(current))
|
2780 |
|
|
break;
|
2781 |
|
|
if (timeout && time_after(jiffies, orig_jiffies + timeout))
|
2782 |
|
|
break;
|
2783 |
|
|
}
|
2784 |
|
|
current->state = TASK_RUNNING;
|
2785 |
|
|
} else {
|
2786 |
|
|
// Nothing to do!
|
2787 |
|
|
}
|
2788 |
|
|
/* Run one more char cycle */
|
2789 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
2790 |
|
|
schedule_timeout(char_time * 5);
|
2791 |
|
|
current->state = TASK_RUNNING;
|
2792 |
|
|
#ifdef CY_DEBUG_WAIT_UNTIL_SENT
|
2793 |
|
|
printk("Clean (jiff=%lu)...done\n", jiffies);
|
2794 |
|
|
#endif
|
2795 |
|
|
}
|
2796 |
|
|
|
2797 |
|
|
/*
|
2798 |
|
|
* This routine is called when a particular tty device is closed.
|
2799 |
|
|
*/
|
2800 |
|
|
static void
|
2801 |
|
|
cy_close(struct tty_struct *tty, struct file *filp)
|
2802 |
|
|
{
|
2803 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
2804 |
|
|
unsigned long flags;
|
2805 |
|
|
|
2806 |
|
|
#ifdef CY_DEBUG_OTHER
|
2807 |
|
|
printk("cyc:cy_close ttyC%d\n", info->line);
|
2808 |
|
|
#endif
|
2809 |
|
|
|
2810 |
|
|
if (!info || serial_paranoia_check(info, tty->device, "cy_close")){
|
2811 |
|
|
return;
|
2812 |
|
|
}
|
2813 |
|
|
|
2814 |
|
|
CY_LOCK(info, flags);
|
2815 |
|
|
/* If the TTY is being hung up, nothing to do */
|
2816 |
|
|
if (tty_hung_up_p(filp)) {
|
2817 |
|
|
MOD_DEC_USE_COUNT;
|
2818 |
|
|
CY_UNLOCK(info, flags);
|
2819 |
|
|
return;
|
2820 |
|
|
}
|
2821 |
|
|
|
2822 |
|
|
#ifdef CY_DEBUG_OPEN
|
2823 |
|
|
printk("cyc:cy_close ttyC%d, count = %d\n", info->line, info->count);
|
2824 |
|
|
#endif
|
2825 |
|
|
if ((tty->count == 1) && (info->count != 1)) {
|
2826 |
|
|
/*
|
2827 |
|
|
* Uh, oh. tty->count is 1, which means that the tty
|
2828 |
|
|
* structure will be freed. Info->count should always
|
2829 |
|
|
* be one in these conditions. If it's greater than
|
2830 |
|
|
* one, we've got real problems, since it means the
|
2831 |
|
|
* serial port won't be shutdown.
|
2832 |
|
|
*/
|
2833 |
|
|
printk("cyc:cy_close: bad serial port count; tty->count is 1, "
|
2834 |
|
|
"info->count is %d\n", info->count);
|
2835 |
|
|
info->count = 1;
|
2836 |
|
|
}
|
2837 |
|
|
#ifdef CY_DEBUG_COUNT
|
2838 |
|
|
printk("cyc:cy_close at (%d): decrementing count to %d\n",
|
2839 |
|
|
current->pid, info->count - 1);
|
2840 |
|
|
#endif
|
2841 |
|
|
if (--info->count < 0) {
|
2842 |
|
|
#ifdef CY_DEBUG_COUNT
|
2843 |
|
|
printk("cyc:cyc_close setting count to 0\n");
|
2844 |
|
|
#endif
|
2845 |
|
|
info->count = 0;
|
2846 |
|
|
}
|
2847 |
|
|
if (info->count) {
|
2848 |
|
|
MOD_DEC_USE_COUNT;
|
2849 |
|
|
CY_UNLOCK(info, flags);
|
2850 |
|
|
return;
|
2851 |
|
|
}
|
2852 |
|
|
info->flags |= ASYNC_CLOSING;
|
2853 |
|
|
/*
|
2854 |
|
|
* Save the termios structure, since this port may have
|
2855 |
|
|
* separate termios for callout and dialin.
|
2856 |
|
|
*/
|
2857 |
|
|
if (info->flags & ASYNC_NORMAL_ACTIVE)
|
2858 |
|
|
info->normal_termios = *tty->termios;
|
2859 |
|
|
if (info->flags & ASYNC_CALLOUT_ACTIVE)
|
2860 |
|
|
info->callout_termios = *tty->termios;
|
2861 |
|
|
|
2862 |
|
|
/*
|
2863 |
|
|
* Now we wait for the transmit buffer to clear; and we notify
|
2864 |
|
|
* the line discipline to only process XON/XOFF characters.
|
2865 |
|
|
*/
|
2866 |
|
|
tty->closing = 1;
|
2867 |
|
|
CY_UNLOCK(info, flags);
|
2868 |
|
|
if (info->closing_wait != CY_CLOSING_WAIT_NONE) {
|
2869 |
|
|
tty_wait_until_sent(tty, info->closing_wait);
|
2870 |
|
|
}
|
2871 |
|
|
CY_LOCK(info, flags);
|
2872 |
|
|
|
2873 |
|
|
if (!IS_CYC_Z(cy_card[info->card])) {
|
2874 |
|
|
int channel = info->line - cy_card[info->card].first_line;
|
2875 |
|
|
int index = cy_card[info->card].bus_index;
|
2876 |
|
|
unsigned char *base_addr = (unsigned char *)
|
2877 |
|
|
(cy_card[info->card].base_addr +
|
2878 |
|
|
(cy_chip_offset[channel>>2] <<index));
|
2879 |
|
|
/* Stop accepting input */
|
2880 |
|
|
channel &= 0x03;
|
2881 |
|
|
cy_writeb((ulong)base_addr+(CyCAR<<index), (u_char)channel);
|
2882 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
2883 |
|
|
cy_readb(base_addr+(CySRER<<index)) & ~CyRxData);
|
2884 |
|
|
if (info->flags & ASYNC_INITIALIZED) {
|
2885 |
|
|
/* Waiting for on-board buffers to be empty before closing
|
2886 |
|
|
the port */
|
2887 |
|
|
CY_UNLOCK(info, flags);
|
2888 |
|
|
cy_wait_until_sent(tty, info->timeout);
|
2889 |
|
|
CY_LOCK(info, flags);
|
2890 |
|
|
}
|
2891 |
|
|
} else {
|
2892 |
|
|
#ifdef Z_WAKE
|
2893 |
|
|
/* Waiting for on-board buffers to be empty before closing the port */
|
2894 |
|
|
unsigned char *base_addr = (unsigned char *)
|
2895 |
|
|
cy_card[info->card].base_addr;
|
2896 |
|
|
struct FIRM_ID *firm_id = (struct FIRM_ID *) (base_addr + ID_ADDRESS);
|
2897 |
|
|
struct ZFW_CTRL *zfw_ctrl = (struct ZFW_CTRL *)
|
2898 |
|
|
(base_addr + (cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
2899 |
|
|
struct CH_CTRL *ch_ctrl = zfw_ctrl->ch_ctrl;
|
2900 |
|
|
int channel = info->line - cy_card[info->card].first_line;
|
2901 |
|
|
int retval;
|
2902 |
|
|
|
2903 |
|
|
if (cy_readl(&ch_ctrl[channel].flow_status) != C_FS_TXIDLE) {
|
2904 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card], channel,
|
2905 |
|
|
C_CM_IOCTLW, 0L);
|
2906 |
|
|
if (retval != 0){
|
2907 |
|
|
printk("cyc:cy_close retval on ttyC%d was %x\n",
|
2908 |
|
|
info->line, retval);
|
2909 |
|
|
}
|
2910 |
|
|
CY_UNLOCK(info, flags);
|
2911 |
|
|
interruptible_sleep_on(&info->shutdown_wait);
|
2912 |
|
|
CY_LOCK(info, flags);
|
2913 |
|
|
}
|
2914 |
|
|
#endif
|
2915 |
|
|
}
|
2916 |
|
|
|
2917 |
|
|
CY_UNLOCK(info, flags);
|
2918 |
|
|
shutdown(info);
|
2919 |
|
|
if (tty->driver.flush_buffer)
|
2920 |
|
|
tty->driver.flush_buffer(tty);
|
2921 |
|
|
if (tty->ldisc.flush_buffer)
|
2922 |
|
|
tty->ldisc.flush_buffer(tty);
|
2923 |
|
|
CY_LOCK(info, flags);
|
2924 |
|
|
|
2925 |
|
|
tty->closing = 0;
|
2926 |
|
|
info->event = 0;
|
2927 |
|
|
info->tty = 0;
|
2928 |
|
|
if (info->blocked_open) {
|
2929 |
|
|
CY_UNLOCK(info, flags);
|
2930 |
|
|
if (info->close_delay) {
|
2931 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
2932 |
|
|
schedule_timeout(info->close_delay);
|
2933 |
|
|
}
|
2934 |
|
|
wake_up_interruptible(&info->open_wait);
|
2935 |
|
|
CY_LOCK(info, flags);
|
2936 |
|
|
}
|
2937 |
|
|
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE|
|
2938 |
|
|
ASYNC_CLOSING);
|
2939 |
|
|
wake_up_interruptible(&info->close_wait);
|
2940 |
|
|
|
2941 |
|
|
#ifdef CY_DEBUG_OTHER
|
2942 |
|
|
printk(" cyc:cy_close done\n");
|
2943 |
|
|
#endif
|
2944 |
|
|
|
2945 |
|
|
MOD_DEC_USE_COUNT;
|
2946 |
|
|
CY_UNLOCK(info, flags);
|
2947 |
|
|
return;
|
2948 |
|
|
} /* cy_close */
|
2949 |
|
|
|
2950 |
|
|
|
2951 |
|
|
/* This routine gets called when tty_write has put something into
|
2952 |
|
|
* the write_queue. The characters may come from user space or
|
2953 |
|
|
* kernel space.
|
2954 |
|
|
*
|
2955 |
|
|
* This routine will return the number of characters actually
|
2956 |
|
|
* accepted for writing.
|
2957 |
|
|
*
|
2958 |
|
|
* If the port is not already transmitting stuff, start it off by
|
2959 |
|
|
* enabling interrupts. The interrupt service routine will then
|
2960 |
|
|
* ensure that the characters are sent.
|
2961 |
|
|
* If the port is already active, there is no need to kick it.
|
2962 |
|
|
*
|
2963 |
|
|
*/
|
2964 |
|
|
static int
|
2965 |
|
|
cy_write(struct tty_struct * tty, int from_user,
|
2966 |
|
|
const unsigned char *buf, int count)
|
2967 |
|
|
{
|
2968 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
2969 |
|
|
unsigned long flags;
|
2970 |
|
|
int c, ret = 0;
|
2971 |
|
|
|
2972 |
|
|
#ifdef CY_DEBUG_IO
|
2973 |
|
|
printk("cyc:cy_write ttyC%d\n", info->line); /* */
|
2974 |
|
|
#endif
|
2975 |
|
|
|
2976 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_write")){
|
2977 |
|
|
return 0;
|
2978 |
|
|
}
|
2979 |
|
|
|
2980 |
|
|
if (!tty || !info->xmit_buf || !tmp_buf){
|
2981 |
|
|
return 0;
|
2982 |
|
|
}
|
2983 |
|
|
|
2984 |
|
|
if (from_user) {
|
2985 |
|
|
down(&tmp_buf_sem);
|
2986 |
|
|
while (1) {
|
2987 |
|
|
int c1;
|
2988 |
|
|
|
2989 |
|
|
c = MIN(count, MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
|
2990 |
|
|
SERIAL_XMIT_SIZE - info->xmit_head));
|
2991 |
|
|
if (c <= 0)
|
2992 |
|
|
break;
|
2993 |
|
|
|
2994 |
|
|
c -= copy_from_user(tmp_buf, buf, c);
|
2995 |
|
|
if (!c) {
|
2996 |
|
|
if (!ret) {
|
2997 |
|
|
ret = -EFAULT;
|
2998 |
|
|
}
|
2999 |
|
|
break;
|
3000 |
|
|
}
|
3001 |
|
|
CY_LOCK(info, flags);
|
3002 |
|
|
c1 = MIN(c, MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
|
3003 |
|
|
SERIAL_XMIT_SIZE - info->xmit_head));
|
3004 |
|
|
|
3005 |
|
|
if (c1 < c)
|
3006 |
|
|
c = c1;
|
3007 |
|
|
memcpy(info->xmit_buf + info->xmit_head, tmp_buf, c);
|
3008 |
|
|
info->xmit_head = ((info->xmit_head + c) & (SERIAL_XMIT_SIZE-1));
|
3009 |
|
|
info->xmit_cnt += c;
|
3010 |
|
|
CY_UNLOCK(info, flags);
|
3011 |
|
|
buf += c;
|
3012 |
|
|
count -= c;
|
3013 |
|
|
ret += c;
|
3014 |
|
|
}
|
3015 |
|
|
up(&tmp_buf_sem);
|
3016 |
|
|
} else {
|
3017 |
|
|
CY_LOCK(info, flags);
|
3018 |
|
|
while (1) {
|
3019 |
|
|
c = MIN(count, MIN(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
|
3020 |
|
|
SERIAL_XMIT_SIZE - info->xmit_head));
|
3021 |
|
|
|
3022 |
|
|
if (c <= 0)
|
3023 |
|
|
break;
|
3024 |
|
|
|
3025 |
|
|
memcpy(info->xmit_buf + info->xmit_head, buf, c);
|
3026 |
|
|
info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
|
3027 |
|
|
info->xmit_cnt += c;
|
3028 |
|
|
buf += c;
|
3029 |
|
|
count -= c;
|
3030 |
|
|
ret += c;
|
3031 |
|
|
}
|
3032 |
|
|
CY_UNLOCK(info, flags);
|
3033 |
|
|
}
|
3034 |
|
|
|
3035 |
|
|
info->idle_stats.xmit_bytes += ret;
|
3036 |
|
|
info->idle_stats.xmit_idle = jiffies;
|
3037 |
|
|
|
3038 |
|
|
if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
|
3039 |
|
|
start_xmit(info);
|
3040 |
|
|
}
|
3041 |
|
|
return ret;
|
3042 |
|
|
} /* cy_write */
|
3043 |
|
|
|
3044 |
|
|
|
3045 |
|
|
/*
|
3046 |
|
|
* This routine is called by the kernel to write a single
|
3047 |
|
|
* character to the tty device. If the kernel uses this routine,
|
3048 |
|
|
* it must call the flush_chars() routine (if defined) when it is
|
3049 |
|
|
* done stuffing characters into the driver. If there is no room
|
3050 |
|
|
* in the queue, the character is ignored.
|
3051 |
|
|
*/
|
3052 |
|
|
static void
|
3053 |
|
|
cy_put_char(struct tty_struct *tty, unsigned char ch)
|
3054 |
|
|
{
|
3055 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
3056 |
|
|
unsigned long flags;
|
3057 |
|
|
|
3058 |
|
|
#ifdef CY_DEBUG_IO
|
3059 |
|
|
printk("cyc:cy_put_char ttyC%d\n", info->line);
|
3060 |
|
|
#endif
|
3061 |
|
|
|
3062 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_put_char"))
|
3063 |
|
|
return;
|
3064 |
|
|
|
3065 |
|
|
if (!tty || !info->xmit_buf)
|
3066 |
|
|
return;
|
3067 |
|
|
|
3068 |
|
|
CY_LOCK(info, flags);
|
3069 |
|
|
if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
|
3070 |
|
|
CY_UNLOCK(info, flags);
|
3071 |
|
|
return;
|
3072 |
|
|
}
|
3073 |
|
|
|
3074 |
|
|
info->xmit_buf[info->xmit_head++] = ch;
|
3075 |
|
|
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
|
3076 |
|
|
info->xmit_cnt++;
|
3077 |
|
|
info->idle_stats.xmit_bytes++;
|
3078 |
|
|
info->idle_stats.xmit_idle = jiffies;
|
3079 |
|
|
CY_UNLOCK(info, flags);
|
3080 |
|
|
} /* cy_put_char */
|
3081 |
|
|
|
3082 |
|
|
|
3083 |
|
|
/*
|
3084 |
|
|
* This routine is called by the kernel after it has written a
|
3085 |
|
|
* series of characters to the tty device using put_char().
|
3086 |
|
|
*/
|
3087 |
|
|
static void
|
3088 |
|
|
cy_flush_chars(struct tty_struct *tty)
|
3089 |
|
|
{
|
3090 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
3091 |
|
|
|
3092 |
|
|
#ifdef CY_DEBUG_IO
|
3093 |
|
|
printk("cyc:cy_flush_chars ttyC%d\n", info->line); /* */
|
3094 |
|
|
#endif
|
3095 |
|
|
|
3096 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_flush_chars"))
|
3097 |
|
|
return;
|
3098 |
|
|
|
3099 |
|
|
if (info->xmit_cnt <= 0 || tty->stopped
|
3100 |
|
|
|| tty->hw_stopped || !info->xmit_buf)
|
3101 |
|
|
return;
|
3102 |
|
|
|
3103 |
|
|
start_xmit(info);
|
3104 |
|
|
} /* cy_flush_chars */
|
3105 |
|
|
|
3106 |
|
|
|
3107 |
|
|
/*
|
3108 |
|
|
* This routine returns the numbers of characters the tty driver
|
3109 |
|
|
* will accept for queuing to be written. This number is subject
|
3110 |
|
|
* to change as output buffers get emptied, or if the output flow
|
3111 |
|
|
* control is activated.
|
3112 |
|
|
*/
|
3113 |
|
|
static int
|
3114 |
|
|
cy_write_room(struct tty_struct *tty)
|
3115 |
|
|
{
|
3116 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
3117 |
|
|
int ret;
|
3118 |
|
|
|
3119 |
|
|
#ifdef CY_DEBUG_IO
|
3120 |
|
|
printk("cyc:cy_write_room ttyC%d\n", info->line); /* */
|
3121 |
|
|
#endif
|
3122 |
|
|
|
3123 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_write_room"))
|
3124 |
|
|
return 0;
|
3125 |
|
|
ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
|
3126 |
|
|
if (ret < 0)
|
3127 |
|
|
ret = 0;
|
3128 |
|
|
return ret;
|
3129 |
|
|
} /* cy_write_room */
|
3130 |
|
|
|
3131 |
|
|
|
3132 |
|
|
static int
|
3133 |
|
|
cy_chars_in_buffer(struct tty_struct *tty)
|
3134 |
|
|
{
|
3135 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
3136 |
|
|
int card, channel;
|
3137 |
|
|
|
3138 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_chars_in_buffer"))
|
3139 |
|
|
return 0;
|
3140 |
|
|
|
3141 |
|
|
card = info->card;
|
3142 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
3143 |
|
|
|
3144 |
|
|
#ifdef Z_EXT_CHARS_IN_BUFFER
|
3145 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
3146 |
|
|
#endif /* Z_EXT_CHARS_IN_BUFFER */
|
3147 |
|
|
#ifdef CY_DEBUG_IO
|
3148 |
|
|
printk("cyc:cy_chars_in_buffer ttyC%d %d\n",
|
3149 |
|
|
info->line, info->xmit_cnt); /* */
|
3150 |
|
|
#endif
|
3151 |
|
|
return info->xmit_cnt;
|
3152 |
|
|
#ifdef Z_EXT_CHARS_IN_BUFFER
|
3153 |
|
|
} else {
|
3154 |
|
|
static volatile struct FIRM_ID *firm_id;
|
3155 |
|
|
static volatile struct ZFW_CTRL *zfw_ctrl;
|
3156 |
|
|
static volatile struct CH_CTRL *ch_ctrl;
|
3157 |
|
|
static volatile struct BUF_CTRL *buf_ctrl;
|
3158 |
|
|
int char_count;
|
3159 |
|
|
volatile uclong tx_put, tx_get, tx_bufsize;
|
3160 |
|
|
|
3161 |
|
|
firm_id = (struct FIRM_ID *)(cy_card[card].base_addr + ID_ADDRESS);
|
3162 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
3163 |
|
|
(cy_card[card].base_addr +
|
3164 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
3165 |
|
|
ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]);
|
3166 |
|
|
buf_ctrl = &(zfw_ctrl->buf_ctrl[channel]);
|
3167 |
|
|
|
3168 |
|
|
tx_get = cy_readl(&buf_ctrl->tx_get);
|
3169 |
|
|
tx_put = cy_readl(&buf_ctrl->tx_put);
|
3170 |
|
|
tx_bufsize = cy_readl(&buf_ctrl->tx_bufsize);
|
3171 |
|
|
if (tx_put >= tx_get)
|
3172 |
|
|
char_count = tx_put - tx_get;
|
3173 |
|
|
else
|
3174 |
|
|
char_count = tx_put - tx_get + tx_bufsize;
|
3175 |
|
|
#ifdef CY_DEBUG_IO
|
3176 |
|
|
printk("cyc:cy_chars_in_buffer ttyC%d %d\n",
|
3177 |
|
|
info->line, info->xmit_cnt + char_count); /* */
|
3178 |
|
|
#endif
|
3179 |
|
|
return (info->xmit_cnt + char_count);
|
3180 |
|
|
}
|
3181 |
|
|
#endif /* Z_EXT_CHARS_IN_BUFFER */
|
3182 |
|
|
} /* cy_chars_in_buffer */
|
3183 |
|
|
|
3184 |
|
|
|
3185 |
|
|
/*
|
3186 |
|
|
* ------------------------------------------------------------
|
3187 |
|
|
* cy_ioctl() and friends
|
3188 |
|
|
* ------------------------------------------------------------
|
3189 |
|
|
*/
|
3190 |
|
|
|
3191 |
|
|
static void
|
3192 |
|
|
cyy_baud_calc(struct cyclades_port *info, uclong baud)
|
3193 |
|
|
{
|
3194 |
|
|
int co, co_val, bpr;
|
3195 |
|
|
uclong cy_clock = ((info->chip_rev >= CD1400_REV_J) ? 60000000 : 25000000);
|
3196 |
|
|
|
3197 |
|
|
if (baud == 0) {
|
3198 |
|
|
info->tbpr = info->tco = info->rbpr = info->rco = 0;
|
3199 |
|
|
return;
|
3200 |
|
|
}
|
3201 |
|
|
|
3202 |
|
|
/* determine which prescaler to use */
|
3203 |
|
|
for (co = 4, co_val = 2048; co; co--, co_val >>= 2) {
|
3204 |
|
|
if (cy_clock / co_val / baud > 63)
|
3205 |
|
|
break;
|
3206 |
|
|
}
|
3207 |
|
|
|
3208 |
|
|
bpr = (cy_clock / co_val * 2 / baud + 1) / 2;
|
3209 |
|
|
if (bpr > 255)
|
3210 |
|
|
bpr = 255;
|
3211 |
|
|
|
3212 |
|
|
info->tbpr = info->rbpr = bpr;
|
3213 |
|
|
info->tco = info->rco = co;
|
3214 |
|
|
}
|
3215 |
|
|
|
3216 |
|
|
/*
|
3217 |
|
|
* This routine finds or computes the various line characteristics.
|
3218 |
|
|
* It used to be called config_setup
|
3219 |
|
|
*/
|
3220 |
|
|
static void
|
3221 |
|
|
set_line_char(struct cyclades_port * info)
|
3222 |
|
|
{
|
3223 |
|
|
unsigned long flags;
|
3224 |
|
|
unsigned char *base_addr;
|
3225 |
|
|
int card,chip,channel,index;
|
3226 |
|
|
unsigned cflag, iflag;
|
3227 |
|
|
unsigned short chip_number;
|
3228 |
|
|
int baud, baud_rate = 0;
|
3229 |
|
|
int i;
|
3230 |
|
|
|
3231 |
|
|
|
3232 |
|
|
if (!info->tty || !info->tty->termios){
|
3233 |
|
|
return;
|
3234 |
|
|
}
|
3235 |
|
|
if (info->line == -1){
|
3236 |
|
|
return;
|
3237 |
|
|
}
|
3238 |
|
|
cflag = info->tty->termios->c_cflag;
|
3239 |
|
|
iflag = info->tty->termios->c_iflag;
|
3240 |
|
|
|
3241 |
|
|
/*
|
3242 |
|
|
* Set up the tty->alt_speed kludge
|
3243 |
|
|
*/
|
3244 |
|
|
if (info->tty) {
|
3245 |
|
|
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
|
3246 |
|
|
info->tty->alt_speed = 57600;
|
3247 |
|
|
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
|
3248 |
|
|
info->tty->alt_speed = 115200;
|
3249 |
|
|
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
|
3250 |
|
|
info->tty->alt_speed = 230400;
|
3251 |
|
|
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
|
3252 |
|
|
info->tty->alt_speed = 460800;
|
3253 |
|
|
}
|
3254 |
|
|
|
3255 |
|
|
card = info->card;
|
3256 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
3257 |
|
|
chip_number = channel / 4;
|
3258 |
|
|
|
3259 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
3260 |
|
|
|
3261 |
|
|
index = cy_card[card].bus_index;
|
3262 |
|
|
|
3263 |
|
|
/* baud rate */
|
3264 |
|
|
baud = tty_get_baud_rate(info->tty);
|
3265 |
|
|
if ((baud == 38400) &&
|
3266 |
|
|
((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) {
|
3267 |
|
|
if (info->custom_divisor)
|
3268 |
|
|
baud_rate = info->baud / info->custom_divisor;
|
3269 |
|
|
else
|
3270 |
|
|
baud_rate = info->baud;
|
3271 |
|
|
} else if (baud > CD1400_MAX_SPEED) {
|
3272 |
|
|
baud = CD1400_MAX_SPEED;
|
3273 |
|
|
}
|
3274 |
|
|
/* find the baud index */
|
3275 |
|
|
for (i = 0; i < 20; i++) {
|
3276 |
|
|
if (baud == baud_table[i]) {
|
3277 |
|
|
break;
|
3278 |
|
|
}
|
3279 |
|
|
}
|
3280 |
|
|
if (i == 20) {
|
3281 |
|
|
i = 19; /* CD1400_MAX_SPEED */
|
3282 |
|
|
}
|
3283 |
|
|
|
3284 |
|
|
if ((baud == 38400) &&
|
3285 |
|
|
((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) {
|
3286 |
|
|
cyy_baud_calc(info, baud_rate);
|
3287 |
|
|
} else {
|
3288 |
|
|
if(info->chip_rev >= CD1400_REV_J) {
|
3289 |
|
|
/* It is a CD1400 rev. J or later */
|
3290 |
|
|
info->tbpr = baud_bpr_60[i]; /* Tx BPR */
|
3291 |
|
|
info->tco = baud_co_60[i]; /* Tx CO */
|
3292 |
|
|
info->rbpr = baud_bpr_60[i]; /* Rx BPR */
|
3293 |
|
|
info->rco = baud_co_60[i]; /* Rx CO */
|
3294 |
|
|
} else {
|
3295 |
|
|
info->tbpr = baud_bpr_25[i]; /* Tx BPR */
|
3296 |
|
|
info->tco = baud_co_25[i]; /* Tx CO */
|
3297 |
|
|
info->rbpr = baud_bpr_25[i]; /* Rx BPR */
|
3298 |
|
|
info->rco = baud_co_25[i]; /* Rx CO */
|
3299 |
|
|
}
|
3300 |
|
|
}
|
3301 |
|
|
if (baud_table[i] == 134) {
|
3302 |
|
|
/* get it right for 134.5 baud */
|
3303 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*30/269) + 2;
|
3304 |
|
|
} else if ((baud == 38400) &&
|
3305 |
|
|
((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) {
|
3306 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*15/baud_rate) + 2;
|
3307 |
|
|
} else if (baud_table[i]) {
|
3308 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*15/baud_table[i]) + 2;
|
3309 |
|
|
/* this needs to be propagated into the card info */
|
3310 |
|
|
} else {
|
3311 |
|
|
info->timeout = 0;
|
3312 |
|
|
}
|
3313 |
|
|
/* By tradition (is it a standard?) a baud rate of zero
|
3314 |
|
|
implies the line should be/has been closed. A bit
|
3315 |
|
|
later in this routine such a test is performed. */
|
3316 |
|
|
|
3317 |
|
|
/* byte size and parity */
|
3318 |
|
|
info->cor5 = 0;
|
3319 |
|
|
info->cor4 = 0;
|
3320 |
|
|
info->cor3 = (info->default_threshold
|
3321 |
|
|
? info->default_threshold
|
3322 |
|
|
: baud_cor3[i]); /* receive threshold */
|
3323 |
|
|
info->cor2 = CyETC;
|
3324 |
|
|
switch(cflag & CSIZE){
|
3325 |
|
|
case CS5:
|
3326 |
|
|
info->cor1 = Cy_5_BITS;
|
3327 |
|
|
break;
|
3328 |
|
|
case CS6:
|
3329 |
|
|
info->cor1 = Cy_6_BITS;
|
3330 |
|
|
break;
|
3331 |
|
|
case CS7:
|
3332 |
|
|
info->cor1 = Cy_7_BITS;
|
3333 |
|
|
break;
|
3334 |
|
|
case CS8:
|
3335 |
|
|
info->cor1 = Cy_8_BITS;
|
3336 |
|
|
break;
|
3337 |
|
|
}
|
3338 |
|
|
if(cflag & CSTOPB){
|
3339 |
|
|
info->cor1 |= Cy_2_STOP;
|
3340 |
|
|
}
|
3341 |
|
|
if (cflag & PARENB){
|
3342 |
|
|
if (cflag & PARODD){
|
3343 |
|
|
info->cor1 |= CyPARITY_O;
|
3344 |
|
|
}else{
|
3345 |
|
|
info->cor1 |= CyPARITY_E;
|
3346 |
|
|
}
|
3347 |
|
|
}else{
|
3348 |
|
|
info->cor1 |= CyPARITY_NONE;
|
3349 |
|
|
}
|
3350 |
|
|
|
3351 |
|
|
/* CTS flow control flag */
|
3352 |
|
|
if (cflag & CRTSCTS){
|
3353 |
|
|
info->flags |= ASYNC_CTS_FLOW;
|
3354 |
|
|
info->cor2 |= CyCtsAE;
|
3355 |
|
|
}else{
|
3356 |
|
|
info->flags &= ~ASYNC_CTS_FLOW;
|
3357 |
|
|
info->cor2 &= ~CyCtsAE;
|
3358 |
|
|
}
|
3359 |
|
|
if (cflag & CLOCAL)
|
3360 |
|
|
info->flags &= ~ASYNC_CHECK_CD;
|
3361 |
|
|
else
|
3362 |
|
|
info->flags |= ASYNC_CHECK_CD;
|
3363 |
|
|
|
3364 |
|
|
/***********************************************
|
3365 |
|
|
The hardware option, CyRtsAO, presents RTS when
|
3366 |
|
|
the chip has characters to send. Since most modems
|
3367 |
|
|
use RTS as reverse (inbound) flow control, this
|
3368 |
|
|
option is not used. If inbound flow control is
|
3369 |
|
|
necessary, DTR can be programmed to provide the
|
3370 |
|
|
appropriate signals for use with a non-standard
|
3371 |
|
|
cable. Contact Marcio Saito for details.
|
3372 |
|
|
***********************************************/
|
3373 |
|
|
|
3374 |
|
|
chip = channel>>2;
|
3375 |
|
|
channel &= 0x03;
|
3376 |
|
|
base_addr = (unsigned char*)
|
3377 |
|
|
(cy_card[card].base_addr
|
3378 |
|
|
+ (cy_chip_offset[chip]<<index));
|
3379 |
|
|
|
3380 |
|
|
CY_LOCK(info, flags);
|
3381 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3382 |
|
|
|
3383 |
|
|
/* tx and rx baud rate */
|
3384 |
|
|
|
3385 |
|
|
cy_writeb((u_long)base_addr+(CyTCOR<<index), info->tco);
|
3386 |
|
|
cy_writeb((u_long)base_addr+(CyTBPR<<index), info->tbpr);
|
3387 |
|
|
cy_writeb((u_long)base_addr+(CyRCOR<<index), info->rco);
|
3388 |
|
|
cy_writeb((u_long)base_addr+(CyRBPR<<index), info->rbpr);
|
3389 |
|
|
|
3390 |
|
|
/* set line characteristics according configuration */
|
3391 |
|
|
|
3392 |
|
|
cy_writeb((u_long)base_addr+(CySCHR1<<index),
|
3393 |
|
|
START_CHAR(info->tty));
|
3394 |
|
|
cy_writeb((u_long)base_addr+(CySCHR2<<index),
|
3395 |
|
|
STOP_CHAR(info->tty));
|
3396 |
|
|
cy_writeb((u_long)base_addr+(CyCOR1<<index), info->cor1);
|
3397 |
|
|
cy_writeb((u_long)base_addr+(CyCOR2<<index), info->cor2);
|
3398 |
|
|
cy_writeb((u_long)base_addr+(CyCOR3<<index), info->cor3);
|
3399 |
|
|
cy_writeb((u_long)base_addr+(CyCOR4<<index), info->cor4);
|
3400 |
|
|
cy_writeb((u_long)base_addr+(CyCOR5<<index), info->cor5);
|
3401 |
|
|
|
3402 |
|
|
cyy_issue_cmd(base_addr,
|
3403 |
|
|
CyCOR_CHANGE|CyCOR1ch|CyCOR2ch|CyCOR3ch,index);
|
3404 |
|
|
|
3405 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index),
|
3406 |
|
|
(u_char)channel); /* !!! Is this needed? */
|
3407 |
|
|
cy_writeb((u_long)base_addr+(CyRTPR<<index), (info->default_timeout
|
3408 |
|
|
? info->default_timeout
|
3409 |
|
|
: 0x02)); /* 10ms rx timeout */
|
3410 |
|
|
|
3411 |
|
|
if (C_CLOCAL(info->tty)) {
|
3412 |
|
|
/* without modem intr */
|
3413 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
3414 |
|
|
cy_readb(base_addr+(CySRER<<index)) | CyMdmCh);
|
3415 |
|
|
/* act on 1->0 modem transitions */
|
3416 |
|
|
if ((cflag & CRTSCTS) && info->rflow) {
|
3417 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR1<<index),
|
3418 |
|
|
(CyCTS|rflow_thr[i]));
|
3419 |
|
|
} else {
|
3420 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR1<<index), CyCTS);
|
3421 |
|
|
}
|
3422 |
|
|
/* act on 0->1 modem transitions */
|
3423 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR2<<index), CyCTS);
|
3424 |
|
|
} else {
|
3425 |
|
|
/* without modem intr */
|
3426 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
3427 |
|
|
cy_readb(base_addr+(CySRER<<index)) | CyMdmCh);
|
3428 |
|
|
/* act on 1->0 modem transitions */
|
3429 |
|
|
if ((cflag & CRTSCTS) && info->rflow) {
|
3430 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR1<<index),
|
3431 |
|
|
(CyDSR|CyCTS|CyRI|CyDCD|rflow_thr[i]));
|
3432 |
|
|
} else {
|
3433 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR1<<index),
|
3434 |
|
|
CyDSR|CyCTS|CyRI|CyDCD);
|
3435 |
|
|
}
|
3436 |
|
|
/* act on 0->1 modem transitions */
|
3437 |
|
|
cy_writeb((u_long)base_addr+(CyMCOR2<<index),
|
3438 |
|
|
CyDSR|CyCTS|CyRI|CyDCD);
|
3439 |
|
|
}
|
3440 |
|
|
|
3441 |
|
|
if(i == 0){ /* baud rate is zero, turn off line */
|
3442 |
|
|
if (info->rtsdtr_inv) {
|
3443 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
3444 |
|
|
} else {
|
3445 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
3446 |
|
|
}
|
3447 |
|
|
#ifdef CY_DEBUG_DTR
|
3448 |
|
|
printk("cyc:set_line_char dropping DTR\n");
|
3449 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3450 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3451 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3452 |
|
|
#endif
|
3453 |
|
|
}else{
|
3454 |
|
|
if (info->rtsdtr_inv) {
|
3455 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
3456 |
|
|
} else {
|
3457 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
3458 |
|
|
}
|
3459 |
|
|
#ifdef CY_DEBUG_DTR
|
3460 |
|
|
printk("cyc:set_line_char raising DTR\n");
|
3461 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3462 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3463 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3464 |
|
|
#endif
|
3465 |
|
|
}
|
3466 |
|
|
|
3467 |
|
|
if (info->tty){
|
3468 |
|
|
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
3469 |
|
|
}
|
3470 |
|
|
CY_UNLOCK(info, flags);
|
3471 |
|
|
|
3472 |
|
|
} else {
|
3473 |
|
|
struct FIRM_ID *firm_id;
|
3474 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
3475 |
|
|
struct BOARD_CTRL *board_ctrl;
|
3476 |
|
|
struct CH_CTRL *ch_ctrl;
|
3477 |
|
|
struct BUF_CTRL *buf_ctrl;
|
3478 |
|
|
uclong sw_flow;
|
3479 |
|
|
int retval;
|
3480 |
|
|
|
3481 |
|
|
firm_id = (struct FIRM_ID *)
|
3482 |
|
|
(cy_card[card].base_addr + ID_ADDRESS);
|
3483 |
|
|
if (!ISZLOADED(cy_card[card])) {
|
3484 |
|
|
return;
|
3485 |
|
|
}
|
3486 |
|
|
|
3487 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
3488 |
|
|
(cy_card[card].base_addr +
|
3489 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
3490 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
3491 |
|
|
ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]);
|
3492 |
|
|
buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
|
3493 |
|
|
|
3494 |
|
|
/* baud rate */
|
3495 |
|
|
baud = tty_get_baud_rate(info->tty);
|
3496 |
|
|
if ((baud == 38400) &&
|
3497 |
|
|
((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) {
|
3498 |
|
|
if (info->custom_divisor)
|
3499 |
|
|
baud_rate = info->baud / info->custom_divisor;
|
3500 |
|
|
else
|
3501 |
|
|
baud_rate = info->baud;
|
3502 |
|
|
} else if (baud > CYZ_MAX_SPEED) {
|
3503 |
|
|
baud = CYZ_MAX_SPEED;
|
3504 |
|
|
}
|
3505 |
|
|
cy_writel(&ch_ctrl->comm_baud , baud);
|
3506 |
|
|
|
3507 |
|
|
if (baud == 134) {
|
3508 |
|
|
/* get it right for 134.5 baud */
|
3509 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*30/269) + 2;
|
3510 |
|
|
} else if ((baud == 38400) &&
|
3511 |
|
|
((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) {
|
3512 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*15/baud_rate) + 2;
|
3513 |
|
|
} else if (baud) {
|
3514 |
|
|
info->timeout = (info->xmit_fifo_size*HZ*15/baud) + 2;
|
3515 |
|
|
/* this needs to be propagated into the card info */
|
3516 |
|
|
} else {
|
3517 |
|
|
info->timeout = 0;
|
3518 |
|
|
}
|
3519 |
|
|
|
3520 |
|
|
/* byte size and parity */
|
3521 |
|
|
switch(cflag & CSIZE){
|
3522 |
|
|
case CS5: cy_writel(&ch_ctrl->comm_data_l , C_DL_CS5); break;
|
3523 |
|
|
case CS6: cy_writel(&ch_ctrl->comm_data_l , C_DL_CS6); break;
|
3524 |
|
|
case CS7: cy_writel(&ch_ctrl->comm_data_l , C_DL_CS7); break;
|
3525 |
|
|
case CS8: cy_writel(&ch_ctrl->comm_data_l , C_DL_CS8); break;
|
3526 |
|
|
}
|
3527 |
|
|
if(cflag & CSTOPB){
|
3528 |
|
|
cy_writel(&ch_ctrl->comm_data_l,
|
3529 |
|
|
cy_readl(&ch_ctrl->comm_data_l) | C_DL_2STOP);
|
3530 |
|
|
}else{
|
3531 |
|
|
cy_writel(&ch_ctrl->comm_data_l,
|
3532 |
|
|
cy_readl(&ch_ctrl->comm_data_l) | C_DL_1STOP);
|
3533 |
|
|
}
|
3534 |
|
|
if (cflag & PARENB){
|
3535 |
|
|
if (cflag & PARODD){
|
3536 |
|
|
cy_writel(&ch_ctrl->comm_parity , C_PR_ODD);
|
3537 |
|
|
}else{
|
3538 |
|
|
cy_writel(&ch_ctrl->comm_parity , C_PR_EVEN);
|
3539 |
|
|
}
|
3540 |
|
|
}else{
|
3541 |
|
|
cy_writel(&ch_ctrl->comm_parity , C_PR_NONE);
|
3542 |
|
|
}
|
3543 |
|
|
|
3544 |
|
|
/* CTS flow control flag */
|
3545 |
|
|
if (cflag & CRTSCTS){
|
3546 |
|
|
cy_writel(&ch_ctrl->hw_flow,
|
3547 |
|
|
cy_readl(&ch_ctrl->hw_flow) | C_RS_CTS | C_RS_RTS);
|
3548 |
|
|
}else{
|
3549 |
|
|
cy_writel(&ch_ctrl->hw_flow,
|
3550 |
|
|
cy_readl(&ch_ctrl->hw_flow) & ~(C_RS_CTS | C_RS_RTS));
|
3551 |
|
|
}
|
3552 |
|
|
/* As the HW flow control is done in firmware, the driver doesn't
|
3553 |
|
|
need to care about it */
|
3554 |
|
|
info->flags &= ~ASYNC_CTS_FLOW;
|
3555 |
|
|
|
3556 |
|
|
/* XON/XOFF/XANY flow control flags */
|
3557 |
|
|
sw_flow = 0;
|
3558 |
|
|
if (iflag & IXON){
|
3559 |
|
|
sw_flow |= C_FL_OXX;
|
3560 |
|
|
if (iflag & IXANY)
|
3561 |
|
|
sw_flow |= C_FL_OIXANY;
|
3562 |
|
|
}
|
3563 |
|
|
cy_writel(&ch_ctrl->sw_flow, sw_flow);
|
3564 |
|
|
|
3565 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_IOCTL, 0L);
|
3566 |
|
|
if (retval != 0){
|
3567 |
|
|
printk("cyc:set_line_char retval on ttyC%d was %x\n",
|
3568 |
|
|
info->line, retval);
|
3569 |
|
|
}
|
3570 |
|
|
|
3571 |
|
|
/* CD sensitivity */
|
3572 |
|
|
if (cflag & CLOCAL){
|
3573 |
|
|
info->flags &= ~ASYNC_CHECK_CD;
|
3574 |
|
|
}else{
|
3575 |
|
|
info->flags |= ASYNC_CHECK_CD;
|
3576 |
|
|
}
|
3577 |
|
|
|
3578 |
|
|
if(baud == 0){ /* baud rate is zero, turn off line */
|
3579 |
|
|
cy_writel(&ch_ctrl->rs_control,
|
3580 |
|
|
cy_readl(&ch_ctrl->rs_control) & ~C_RS_DTR);
|
3581 |
|
|
#ifdef CY_DEBUG_DTR
|
3582 |
|
|
printk("cyc:set_line_char dropping Z DTR\n");
|
3583 |
|
|
#endif
|
3584 |
|
|
}else{
|
3585 |
|
|
cy_writel(&ch_ctrl->rs_control,
|
3586 |
|
|
cy_readl(&ch_ctrl->rs_control) | C_RS_DTR);
|
3587 |
|
|
#ifdef CY_DEBUG_DTR
|
3588 |
|
|
printk("cyc:set_line_char raising Z DTR\n");
|
3589 |
|
|
#endif
|
3590 |
|
|
}
|
3591 |
|
|
|
3592 |
|
|
retval = cyz_issue_cmd( &cy_card[card], channel, C_CM_IOCTLM, 0L);
|
3593 |
|
|
if (retval != 0){
|
3594 |
|
|
printk("cyc:set_line_char(2) retval on ttyC%d was %x\n",
|
3595 |
|
|
info->line, retval);
|
3596 |
|
|
}
|
3597 |
|
|
|
3598 |
|
|
if (info->tty){
|
3599 |
|
|
clear_bit(TTY_IO_ERROR, &info->tty->flags);
|
3600 |
|
|
}
|
3601 |
|
|
}
|
3602 |
|
|
} /* set_line_char */
|
3603 |
|
|
|
3604 |
|
|
|
3605 |
|
|
static int
|
3606 |
|
|
get_serial_info(struct cyclades_port * info,
|
3607 |
|
|
struct serial_struct * retinfo)
|
3608 |
|
|
{
|
3609 |
|
|
struct serial_struct tmp;
|
3610 |
|
|
struct cyclades_card *cinfo = &cy_card[info->card];
|
3611 |
|
|
|
3612 |
|
|
if (!retinfo)
|
3613 |
|
|
return -EFAULT;
|
3614 |
|
|
memset(&tmp, 0, sizeof(tmp));
|
3615 |
|
|
tmp.type = info->type;
|
3616 |
|
|
tmp.line = info->line;
|
3617 |
|
|
tmp.port = info->card * 0x100 + info->line - cinfo->first_line;
|
3618 |
|
|
tmp.irq = cinfo->irq;
|
3619 |
|
|
tmp.flags = info->flags;
|
3620 |
|
|
tmp.close_delay = info->close_delay;
|
3621 |
|
|
tmp.baud_base = info->baud;
|
3622 |
|
|
tmp.custom_divisor = info->custom_divisor;
|
3623 |
|
|
tmp.hub6 = 0; /*!!!*/
|
3624 |
|
|
return copy_to_user(retinfo,&tmp,sizeof(*retinfo))?-EFAULT:0;
|
3625 |
|
|
} /* get_serial_info */
|
3626 |
|
|
|
3627 |
|
|
|
3628 |
|
|
static int
|
3629 |
|
|
set_serial_info(struct cyclades_port * info,
|
3630 |
|
|
struct serial_struct * new_info)
|
3631 |
|
|
{
|
3632 |
|
|
struct serial_struct new_serial;
|
3633 |
|
|
struct cyclades_port old_info;
|
3634 |
|
|
|
3635 |
|
|
if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
|
3636 |
|
|
return -EFAULT;
|
3637 |
|
|
old_info = *info;
|
3638 |
|
|
|
3639 |
|
|
if (!capable(CAP_SYS_ADMIN)) {
|
3640 |
|
|
if ((new_serial.close_delay != info->close_delay) ||
|
3641 |
|
|
(new_serial.baud_base != info->baud) ||
|
3642 |
|
|
((new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) !=
|
3643 |
|
|
(info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)))
|
3644 |
|
|
return -EPERM;
|
3645 |
|
|
info->flags = ((info->flags & ~ASYNC_USR_MASK) |
|
3646 |
|
|
(new_serial.flags & ASYNC_USR_MASK));
|
3647 |
|
|
info->baud = new_serial.baud_base;
|
3648 |
|
|
info->custom_divisor = new_serial.custom_divisor;
|
3649 |
|
|
goto check_and_exit;
|
3650 |
|
|
}
|
3651 |
|
|
|
3652 |
|
|
|
3653 |
|
|
/*
|
3654 |
|
|
* OK, past this point, all the error checking has been done.
|
3655 |
|
|
* At this point, we start making changes.....
|
3656 |
|
|
*/
|
3657 |
|
|
|
3658 |
|
|
info->baud = new_serial.baud_base;
|
3659 |
|
|
info->custom_divisor = new_serial.custom_divisor;
|
3660 |
|
|
info->flags = ((info->flags & ~ASYNC_FLAGS) |
|
3661 |
|
|
(new_serial.flags & ASYNC_FLAGS));
|
3662 |
|
|
info->close_delay = new_serial.close_delay * HZ/100;
|
3663 |
|
|
info->closing_wait = new_serial.closing_wait * HZ/100;
|
3664 |
|
|
|
3665 |
|
|
check_and_exit:
|
3666 |
|
|
if (info->flags & ASYNC_INITIALIZED){
|
3667 |
|
|
set_line_char(info);
|
3668 |
|
|
return 0;
|
3669 |
|
|
}else{
|
3670 |
|
|
return startup(info);
|
3671 |
|
|
}
|
3672 |
|
|
} /* set_serial_info */
|
3673 |
|
|
|
3674 |
|
|
/*
|
3675 |
|
|
* get_lsr_info - get line status register info
|
3676 |
|
|
*
|
3677 |
|
|
* Purpose: Let user call ioctl() to get info when the UART physically
|
3678 |
|
|
* is emptied. On bus types like RS485, the transmitter must
|
3679 |
|
|
* release the bus after transmitting. This must be done when
|
3680 |
|
|
* the transmit shift register is empty, not be done when the
|
3681 |
|
|
* transmit holding register is empty. This functionality
|
3682 |
|
|
* allows an RS485 driver to be written in user space.
|
3683 |
|
|
*/
|
3684 |
|
|
static int get_lsr_info(struct cyclades_port *info, unsigned int *value)
|
3685 |
|
|
{
|
3686 |
|
|
int card, chip, channel, index;
|
3687 |
|
|
unsigned char status;
|
3688 |
|
|
unsigned int result;
|
3689 |
|
|
unsigned long flags;
|
3690 |
|
|
unsigned char *base_addr;
|
3691 |
|
|
|
3692 |
|
|
card = info->card;
|
3693 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
3694 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
3695 |
|
|
chip = channel>>2;
|
3696 |
|
|
channel &= 0x03;
|
3697 |
|
|
index = cy_card[card].bus_index;
|
3698 |
|
|
base_addr = (unsigned char *)
|
3699 |
|
|
(cy_card[card].base_addr + (cy_chip_offset[chip]<<index));
|
3700 |
|
|
|
3701 |
|
|
CY_LOCK(info, flags);
|
3702 |
|
|
status = cy_readb(base_addr+(CySRER<<index)) & (CyTxRdy|CyTxMpty);
|
3703 |
|
|
CY_UNLOCK(info, flags);
|
3704 |
|
|
result = (status ? 0 : TIOCSER_TEMT);
|
3705 |
|
|
} else {
|
3706 |
|
|
/* Not supported yet */
|
3707 |
|
|
return -EINVAL;
|
3708 |
|
|
}
|
3709 |
|
|
return cy_put_user(result, (unsigned long *) value);
|
3710 |
|
|
}
|
3711 |
|
|
|
3712 |
|
|
static int
|
3713 |
|
|
get_modem_info(struct cyclades_port * info, unsigned int *value)
|
3714 |
|
|
{
|
3715 |
|
|
int card,chip,channel,index;
|
3716 |
|
|
unsigned char *base_addr;
|
3717 |
|
|
unsigned long flags;
|
3718 |
|
|
unsigned char status;
|
3719 |
|
|
unsigned long lstatus;
|
3720 |
|
|
unsigned int result;
|
3721 |
|
|
struct FIRM_ID *firm_id;
|
3722 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
3723 |
|
|
struct BOARD_CTRL *board_ctrl;
|
3724 |
|
|
struct CH_CTRL *ch_ctrl;
|
3725 |
|
|
|
3726 |
|
|
card = info->card;
|
3727 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
3728 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
3729 |
|
|
chip = channel>>2;
|
3730 |
|
|
channel &= 0x03;
|
3731 |
|
|
index = cy_card[card].bus_index;
|
3732 |
|
|
base_addr = (unsigned char*)
|
3733 |
|
|
(cy_card[card].base_addr
|
3734 |
|
|
+ (cy_chip_offset[chip]<<index));
|
3735 |
|
|
|
3736 |
|
|
CY_LOCK(info, flags);
|
3737 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3738 |
|
|
status = cy_readb(base_addr+(CyMSVR1<<index));
|
3739 |
|
|
status |= cy_readb(base_addr+(CyMSVR2<<index));
|
3740 |
|
|
CY_UNLOCK(info, flags);
|
3741 |
|
|
|
3742 |
|
|
if (info->rtsdtr_inv) {
|
3743 |
|
|
result = ((status & CyRTS) ? TIOCM_DTR : 0)
|
3744 |
|
|
| ((status & CyDTR) ? TIOCM_RTS : 0);
|
3745 |
|
|
} else {
|
3746 |
|
|
result = ((status & CyRTS) ? TIOCM_RTS : 0)
|
3747 |
|
|
| ((status & CyDTR) ? TIOCM_DTR : 0);
|
3748 |
|
|
}
|
3749 |
|
|
result |= ((status & CyDCD) ? TIOCM_CAR : 0)
|
3750 |
|
|
| ((status & CyRI) ? TIOCM_RNG : 0)
|
3751 |
|
|
| ((status & CyDSR) ? TIOCM_DSR : 0)
|
3752 |
|
|
| ((status & CyCTS) ? TIOCM_CTS : 0);
|
3753 |
|
|
} else {
|
3754 |
|
|
base_addr = (unsigned char*) (cy_card[card].base_addr);
|
3755 |
|
|
|
3756 |
|
|
if (cy_card[card].num_chips != -1){
|
3757 |
|
|
return -EINVAL;
|
3758 |
|
|
}
|
3759 |
|
|
|
3760 |
|
|
firm_id = (struct FIRM_ID *)
|
3761 |
|
|
(cy_card[card].base_addr + ID_ADDRESS);
|
3762 |
|
|
if (ISZLOADED(cy_card[card])) {
|
3763 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
3764 |
|
|
(cy_card[card].base_addr +
|
3765 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
3766 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
3767 |
|
|
ch_ctrl = zfw_ctrl->ch_ctrl;
|
3768 |
|
|
lstatus = cy_readl(&ch_ctrl[channel].rs_status);
|
3769 |
|
|
result = ((lstatus & C_RS_RTS) ? TIOCM_RTS : 0)
|
3770 |
|
|
| ((lstatus & C_RS_DTR) ? TIOCM_DTR : 0)
|
3771 |
|
|
| ((lstatus & C_RS_DCD) ? TIOCM_CAR : 0)
|
3772 |
|
|
| ((lstatus & C_RS_RI) ? TIOCM_RNG : 0)
|
3773 |
|
|
| ((lstatus & C_RS_DSR) ? TIOCM_DSR : 0)
|
3774 |
|
|
| ((lstatus & C_RS_CTS) ? TIOCM_CTS : 0);
|
3775 |
|
|
}else{
|
3776 |
|
|
result = 0;
|
3777 |
|
|
return -ENODEV;
|
3778 |
|
|
}
|
3779 |
|
|
|
3780 |
|
|
}
|
3781 |
|
|
return cy_put_user(result, value);
|
3782 |
|
|
} /* get_modem_info */
|
3783 |
|
|
|
3784 |
|
|
|
3785 |
|
|
static int
|
3786 |
|
|
set_modem_info(struct cyclades_port * info, unsigned int cmd,
|
3787 |
|
|
unsigned int *value)
|
3788 |
|
|
{
|
3789 |
|
|
int card,chip,channel,index;
|
3790 |
|
|
unsigned char *base_addr;
|
3791 |
|
|
unsigned long flags;
|
3792 |
|
|
unsigned int arg = cy_get_user((unsigned long *) value);
|
3793 |
|
|
struct FIRM_ID *firm_id;
|
3794 |
|
|
struct ZFW_CTRL *zfw_ctrl;
|
3795 |
|
|
struct BOARD_CTRL *board_ctrl;
|
3796 |
|
|
struct CH_CTRL *ch_ctrl;
|
3797 |
|
|
int retval;
|
3798 |
|
|
|
3799 |
|
|
card = info->card;
|
3800 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
3801 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
3802 |
|
|
chip = channel>>2;
|
3803 |
|
|
channel &= 0x03;
|
3804 |
|
|
index = cy_card[card].bus_index;
|
3805 |
|
|
base_addr = (unsigned char*)
|
3806 |
|
|
(cy_card[card].base_addr
|
3807 |
|
|
+ (cy_chip_offset[chip]<<index));
|
3808 |
|
|
|
3809 |
|
|
switch (cmd) {
|
3810 |
|
|
case TIOCMBIS:
|
3811 |
|
|
if (arg & TIOCM_RTS){
|
3812 |
|
|
CY_LOCK(info, flags);
|
3813 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3814 |
|
|
if (info->rtsdtr_inv) {
|
3815 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
3816 |
|
|
} else {
|
3817 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
3818 |
|
|
}
|
3819 |
|
|
CY_UNLOCK(info, flags);
|
3820 |
|
|
}
|
3821 |
|
|
if (arg & TIOCM_DTR){
|
3822 |
|
|
CY_LOCK(info, flags);
|
3823 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3824 |
|
|
if (info->rtsdtr_inv) {
|
3825 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
3826 |
|
|
} else {
|
3827 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
3828 |
|
|
}
|
3829 |
|
|
#ifdef CY_DEBUG_DTR
|
3830 |
|
|
printk("cyc:set_modem_info raising DTR\n");
|
3831 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3832 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3833 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3834 |
|
|
#endif
|
3835 |
|
|
CY_UNLOCK(info, flags);
|
3836 |
|
|
}
|
3837 |
|
|
break;
|
3838 |
|
|
case TIOCMBIC:
|
3839 |
|
|
if (arg & TIOCM_RTS){
|
3840 |
|
|
CY_LOCK(info, flags);
|
3841 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index),
|
3842 |
|
|
(u_char)channel);
|
3843 |
|
|
if (info->rtsdtr_inv) {
|
3844 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
3845 |
|
|
} else {
|
3846 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
3847 |
|
|
}
|
3848 |
|
|
CY_UNLOCK(info, flags);
|
3849 |
|
|
}
|
3850 |
|
|
if (arg & TIOCM_DTR){
|
3851 |
|
|
CY_LOCK(info, flags);
|
3852 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3853 |
|
|
if (info->rtsdtr_inv) {
|
3854 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
3855 |
|
|
} else {
|
3856 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
3857 |
|
|
}
|
3858 |
|
|
#ifdef CY_DEBUG_DTR
|
3859 |
|
|
printk("cyc:set_modem_info dropping DTR\n");
|
3860 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3861 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3862 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3863 |
|
|
#endif
|
3864 |
|
|
CY_UNLOCK(info, flags);
|
3865 |
|
|
}
|
3866 |
|
|
break;
|
3867 |
|
|
case TIOCMSET:
|
3868 |
|
|
if (arg & TIOCM_RTS){
|
3869 |
|
|
CY_LOCK(info, flags);
|
3870 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3871 |
|
|
if (info->rtsdtr_inv) {
|
3872 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
3873 |
|
|
} else {
|
3874 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
3875 |
|
|
}
|
3876 |
|
|
CY_UNLOCK(info, flags);
|
3877 |
|
|
}else{
|
3878 |
|
|
CY_LOCK(info, flags);
|
3879 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3880 |
|
|
if (info->rtsdtr_inv) {
|
3881 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
3882 |
|
|
} else {
|
3883 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
3884 |
|
|
}
|
3885 |
|
|
CY_UNLOCK(info, flags);
|
3886 |
|
|
}
|
3887 |
|
|
if (arg & TIOCM_DTR){
|
3888 |
|
|
CY_LOCK(info, flags);
|
3889 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3890 |
|
|
if (info->rtsdtr_inv) {
|
3891 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
3892 |
|
|
} else {
|
3893 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
3894 |
|
|
}
|
3895 |
|
|
#ifdef CY_DEBUG_DTR
|
3896 |
|
|
printk("cyc:set_modem_info raising DTR\n");
|
3897 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3898 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3899 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3900 |
|
|
#endif
|
3901 |
|
|
CY_UNLOCK(info, flags);
|
3902 |
|
|
}else{
|
3903 |
|
|
CY_LOCK(info, flags);
|
3904 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
3905 |
|
|
if (info->rtsdtr_inv) {
|
3906 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
3907 |
|
|
} else {
|
3908 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
3909 |
|
|
}
|
3910 |
|
|
|
3911 |
|
|
#ifdef CY_DEBUG_DTR
|
3912 |
|
|
printk("cyc:set_modem_info dropping DTR\n");
|
3913 |
|
|
printk(" status: 0x%x, 0x%x\n",
|
3914 |
|
|
cy_readb(base_addr+(CyMSVR1<<index)),
|
3915 |
|
|
cy_readb(base_addr+(CyMSVR2<<index)));
|
3916 |
|
|
#endif
|
3917 |
|
|
CY_UNLOCK(info, flags);
|
3918 |
|
|
}
|
3919 |
|
|
break;
|
3920 |
|
|
default:
|
3921 |
|
|
return -EINVAL;
|
3922 |
|
|
}
|
3923 |
|
|
} else {
|
3924 |
|
|
base_addr = (unsigned char*) (cy_card[card].base_addr);
|
3925 |
|
|
|
3926 |
|
|
firm_id = (struct FIRM_ID *)
|
3927 |
|
|
(cy_card[card].base_addr + ID_ADDRESS);
|
3928 |
|
|
if (ISZLOADED(cy_card[card])) {
|
3929 |
|
|
zfw_ctrl = (struct ZFW_CTRL *)
|
3930 |
|
|
(cy_card[card].base_addr +
|
3931 |
|
|
(cy_readl(&firm_id->zfwctrl_addr) & 0xfffff));
|
3932 |
|
|
board_ctrl = &zfw_ctrl->board_ctrl;
|
3933 |
|
|
ch_ctrl = zfw_ctrl->ch_ctrl;
|
3934 |
|
|
|
3935 |
|
|
switch (cmd) {
|
3936 |
|
|
case TIOCMBIS:
|
3937 |
|
|
if (arg & TIOCM_RTS){
|
3938 |
|
|
CY_LOCK(info, flags);
|
3939 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3940 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) | C_RS_RTS);
|
3941 |
|
|
CY_UNLOCK(info, flags);
|
3942 |
|
|
}
|
3943 |
|
|
if (arg & TIOCM_DTR){
|
3944 |
|
|
CY_LOCK(info, flags);
|
3945 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3946 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) | C_RS_DTR);
|
3947 |
|
|
#ifdef CY_DEBUG_DTR
|
3948 |
|
|
printk("cyc:set_modem_info raising Z DTR\n");
|
3949 |
|
|
#endif
|
3950 |
|
|
CY_UNLOCK(info, flags);
|
3951 |
|
|
}
|
3952 |
|
|
break;
|
3953 |
|
|
case TIOCMBIC:
|
3954 |
|
|
if (arg & TIOCM_RTS){
|
3955 |
|
|
CY_LOCK(info, flags);
|
3956 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3957 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) & ~C_RS_RTS);
|
3958 |
|
|
CY_UNLOCK(info, flags);
|
3959 |
|
|
}
|
3960 |
|
|
if (arg & TIOCM_DTR){
|
3961 |
|
|
CY_LOCK(info, flags);
|
3962 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3963 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) & ~C_RS_DTR);
|
3964 |
|
|
#ifdef CY_DEBUG_DTR
|
3965 |
|
|
printk("cyc:set_modem_info clearing Z DTR\n");
|
3966 |
|
|
#endif
|
3967 |
|
|
CY_UNLOCK(info, flags);
|
3968 |
|
|
}
|
3969 |
|
|
break;
|
3970 |
|
|
case TIOCMSET:
|
3971 |
|
|
if (arg & TIOCM_RTS){
|
3972 |
|
|
CY_LOCK(info, flags);
|
3973 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3974 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) | C_RS_RTS);
|
3975 |
|
|
CY_UNLOCK(info, flags);
|
3976 |
|
|
}else{
|
3977 |
|
|
CY_LOCK(info, flags);
|
3978 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3979 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) & ~C_RS_RTS);
|
3980 |
|
|
CY_UNLOCK(info, flags);
|
3981 |
|
|
}
|
3982 |
|
|
if (arg & TIOCM_DTR){
|
3983 |
|
|
CY_LOCK(info, flags);
|
3984 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3985 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) | C_RS_DTR);
|
3986 |
|
|
#ifdef CY_DEBUG_DTR
|
3987 |
|
|
printk("cyc:set_modem_info raising Z DTR\n");
|
3988 |
|
|
#endif
|
3989 |
|
|
CY_UNLOCK(info, flags);
|
3990 |
|
|
}else{
|
3991 |
|
|
CY_LOCK(info, flags);
|
3992 |
|
|
cy_writel(&ch_ctrl[channel].rs_control,
|
3993 |
|
|
cy_readl(&ch_ctrl[channel].rs_control) & ~C_RS_DTR);
|
3994 |
|
|
#ifdef CY_DEBUG_DTR
|
3995 |
|
|
printk("cyc:set_modem_info clearing Z DTR\n");
|
3996 |
|
|
#endif
|
3997 |
|
|
CY_UNLOCK(info, flags);
|
3998 |
|
|
}
|
3999 |
|
|
break;
|
4000 |
|
|
default:
|
4001 |
|
|
return -EINVAL;
|
4002 |
|
|
}
|
4003 |
|
|
}else{
|
4004 |
|
|
return -ENODEV;
|
4005 |
|
|
}
|
4006 |
|
|
CY_LOCK(info, flags);
|
4007 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
4008 |
|
|
channel, C_CM_IOCTLM,0L);
|
4009 |
|
|
if (retval != 0){
|
4010 |
|
|
printk("cyc:set_modem_info retval on ttyC%d was %x\n",
|
4011 |
|
|
info->line, retval);
|
4012 |
|
|
}
|
4013 |
|
|
CY_UNLOCK(info, flags);
|
4014 |
|
|
}
|
4015 |
|
|
return 0;
|
4016 |
|
|
} /* set_modem_info */
|
4017 |
|
|
|
4018 |
|
|
/*
|
4019 |
|
|
* cy_break() --- routine which turns the break handling on or off
|
4020 |
|
|
*/
|
4021 |
|
|
static void
|
4022 |
|
|
cy_break(struct tty_struct *tty, int break_state)
|
4023 |
|
|
{
|
4024 |
|
|
struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
|
4025 |
|
|
unsigned long flags;
|
4026 |
|
|
|
4027 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_break"))
|
4028 |
|
|
return;
|
4029 |
|
|
|
4030 |
|
|
CY_LOCK(info, flags);
|
4031 |
|
|
if (!IS_CYC_Z(cy_card[info->card])) {
|
4032 |
|
|
/* Let the transmit ISR take care of this (since it
|
4033 |
|
|
requires stuffing characters into the output stream).
|
4034 |
|
|
*/
|
4035 |
|
|
if (break_state == -1) {
|
4036 |
|
|
if (!info->breakon) {
|
4037 |
|
|
info->breakon = 1;
|
4038 |
|
|
if (!info->xmit_cnt) {
|
4039 |
|
|
CY_UNLOCK(info, flags);
|
4040 |
|
|
start_xmit(info);
|
4041 |
|
|
CY_LOCK(info, flags);
|
4042 |
|
|
}
|
4043 |
|
|
}
|
4044 |
|
|
} else {
|
4045 |
|
|
if (!info->breakoff) {
|
4046 |
|
|
info->breakoff = 1;
|
4047 |
|
|
if (!info->xmit_cnt) {
|
4048 |
|
|
CY_UNLOCK(info, flags);
|
4049 |
|
|
start_xmit(info);
|
4050 |
|
|
CY_LOCK(info, flags);
|
4051 |
|
|
}
|
4052 |
|
|
}
|
4053 |
|
|
}
|
4054 |
|
|
} else {
|
4055 |
|
|
int retval;
|
4056 |
|
|
|
4057 |
|
|
if (break_state == -1) {
|
4058 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
4059 |
|
|
(info->line) - (cy_card[info->card].first_line),
|
4060 |
|
|
C_CM_SET_BREAK, 0L);
|
4061 |
|
|
if (retval != 0) {
|
4062 |
|
|
printk("cyc:cy_break (set) retval on ttyC%d was %x\n",
|
4063 |
|
|
info->line, retval);
|
4064 |
|
|
}
|
4065 |
|
|
} else {
|
4066 |
|
|
retval = cyz_issue_cmd(&cy_card[info->card],
|
4067 |
|
|
(info->line) - (cy_card[info->card].first_line),
|
4068 |
|
|
C_CM_CLR_BREAK, 0L);
|
4069 |
|
|
if (retval != 0) {
|
4070 |
|
|
printk("cyc:cy_break (clr) retval on ttyC%d was %x\n",
|
4071 |
|
|
info->line, retval);
|
4072 |
|
|
}
|
4073 |
|
|
}
|
4074 |
|
|
}
|
4075 |
|
|
CY_UNLOCK(info, flags);
|
4076 |
|
|
} /* cy_break */
|
4077 |
|
|
|
4078 |
|
|
static int
|
4079 |
|
|
get_mon_info(struct cyclades_port * info, struct cyclades_monitor * mon)
|
4080 |
|
|
{
|
4081 |
|
|
|
4082 |
|
|
if(copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
|
4083 |
|
|
return -EFAULT;
|
4084 |
|
|
info->mon.int_count = 0;
|
4085 |
|
|
info->mon.char_count = 0;
|
4086 |
|
|
info->mon.char_max = 0;
|
4087 |
|
|
info->mon.char_last = 0;
|
4088 |
|
|
return 0;
|
4089 |
|
|
}/* get_mon_info */
|
4090 |
|
|
|
4091 |
|
|
|
4092 |
|
|
static int
|
4093 |
|
|
set_threshold(struct cyclades_port * info, unsigned long value)
|
4094 |
|
|
{
|
4095 |
|
|
unsigned char *base_addr;
|
4096 |
|
|
int card,channel,chip,index;
|
4097 |
|
|
unsigned long flags;
|
4098 |
|
|
|
4099 |
|
|
card = info->card;
|
4100 |
|
|
channel = info->line - cy_card[card].first_line;
|
4101 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4102 |
|
|
chip = channel>>2;
|
4103 |
|
|
channel &= 0x03;
|
4104 |
|
|
index = cy_card[card].bus_index;
|
4105 |
|
|
base_addr = (unsigned char*)
|
4106 |
|
|
(cy_card[card].base_addr
|
4107 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4108 |
|
|
|
4109 |
|
|
info->cor3 &= ~CyREC_FIFO;
|
4110 |
|
|
info->cor3 |= value & CyREC_FIFO;
|
4111 |
|
|
|
4112 |
|
|
CY_LOCK(info, flags);
|
4113 |
|
|
cy_writeb((u_long)base_addr+(CyCOR3<<index), info->cor3);
|
4114 |
|
|
cyy_issue_cmd(base_addr,CyCOR_CHANGE|CyCOR3ch,index);
|
4115 |
|
|
CY_UNLOCK(info, flags);
|
4116 |
|
|
} else {
|
4117 |
|
|
// Nothing to do!
|
4118 |
|
|
}
|
4119 |
|
|
return 0;
|
4120 |
|
|
}/* set_threshold */
|
4121 |
|
|
|
4122 |
|
|
|
4123 |
|
|
static int
|
4124 |
|
|
get_threshold(struct cyclades_port * info, unsigned long *value)
|
4125 |
|
|
{
|
4126 |
|
|
unsigned char *base_addr;
|
4127 |
|
|
int card,channel,chip,index;
|
4128 |
|
|
unsigned long tmp;
|
4129 |
|
|
|
4130 |
|
|
card = info->card;
|
4131 |
|
|
channel = info->line - cy_card[card].first_line;
|
4132 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4133 |
|
|
chip = channel>>2;
|
4134 |
|
|
channel &= 0x03;
|
4135 |
|
|
index = cy_card[card].bus_index;
|
4136 |
|
|
base_addr = (unsigned char*)
|
4137 |
|
|
(cy_card[card].base_addr
|
4138 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4139 |
|
|
|
4140 |
|
|
tmp = cy_readb(base_addr+(CyCOR3<<index)) & CyREC_FIFO;
|
4141 |
|
|
return cy_put_user(tmp,value);
|
4142 |
|
|
} else {
|
4143 |
|
|
// Nothing to do!
|
4144 |
|
|
return 0;
|
4145 |
|
|
}
|
4146 |
|
|
}/* get_threshold */
|
4147 |
|
|
|
4148 |
|
|
|
4149 |
|
|
static int
|
4150 |
|
|
set_default_threshold(struct cyclades_port * info, unsigned long value)
|
4151 |
|
|
{
|
4152 |
|
|
info->default_threshold = value & 0x0f;
|
4153 |
|
|
return 0;
|
4154 |
|
|
}/* set_default_threshold */
|
4155 |
|
|
|
4156 |
|
|
|
4157 |
|
|
static int
|
4158 |
|
|
get_default_threshold(struct cyclades_port * info, unsigned long *value)
|
4159 |
|
|
{
|
4160 |
|
|
return cy_put_user(info->default_threshold,value);
|
4161 |
|
|
}/* get_default_threshold */
|
4162 |
|
|
|
4163 |
|
|
|
4164 |
|
|
static int
|
4165 |
|
|
set_timeout(struct cyclades_port * info, unsigned long value)
|
4166 |
|
|
{
|
4167 |
|
|
unsigned char *base_addr;
|
4168 |
|
|
int card,channel,chip,index;
|
4169 |
|
|
unsigned long flags;
|
4170 |
|
|
|
4171 |
|
|
card = info->card;
|
4172 |
|
|
channel = info->line - cy_card[card].first_line;
|
4173 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4174 |
|
|
chip = channel>>2;
|
4175 |
|
|
channel &= 0x03;
|
4176 |
|
|
index = cy_card[card].bus_index;
|
4177 |
|
|
base_addr = (unsigned char*)
|
4178 |
|
|
(cy_card[card].base_addr
|
4179 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4180 |
|
|
|
4181 |
|
|
CY_LOCK(info, flags);
|
4182 |
|
|
cy_writeb((u_long)base_addr+(CyRTPR<<index), value & 0xff);
|
4183 |
|
|
CY_UNLOCK(info, flags);
|
4184 |
|
|
} else {
|
4185 |
|
|
// Nothing to do!
|
4186 |
|
|
}
|
4187 |
|
|
return 0;
|
4188 |
|
|
}/* set_timeout */
|
4189 |
|
|
|
4190 |
|
|
|
4191 |
|
|
static int
|
4192 |
|
|
get_timeout(struct cyclades_port * info, unsigned long *value)
|
4193 |
|
|
{
|
4194 |
|
|
unsigned char *base_addr;
|
4195 |
|
|
int card,channel,chip,index;
|
4196 |
|
|
unsigned long tmp;
|
4197 |
|
|
|
4198 |
|
|
card = info->card;
|
4199 |
|
|
channel = info->line - cy_card[card].first_line;
|
4200 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4201 |
|
|
chip = channel>>2;
|
4202 |
|
|
channel &= 0x03;
|
4203 |
|
|
index = cy_card[card].bus_index;
|
4204 |
|
|
base_addr = (unsigned char*)
|
4205 |
|
|
(cy_card[card].base_addr
|
4206 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4207 |
|
|
|
4208 |
|
|
tmp = cy_readb(base_addr+(CyRTPR<<index));
|
4209 |
|
|
return cy_put_user(tmp,value);
|
4210 |
|
|
} else {
|
4211 |
|
|
// Nothing to do!
|
4212 |
|
|
return 0;
|
4213 |
|
|
}
|
4214 |
|
|
}/* get_timeout */
|
4215 |
|
|
|
4216 |
|
|
|
4217 |
|
|
static int
|
4218 |
|
|
set_default_timeout(struct cyclades_port * info, unsigned long value)
|
4219 |
|
|
{
|
4220 |
|
|
info->default_timeout = value & 0xff;
|
4221 |
|
|
return 0;
|
4222 |
|
|
}/* set_default_timeout */
|
4223 |
|
|
|
4224 |
|
|
|
4225 |
|
|
static int
|
4226 |
|
|
get_default_timeout(struct cyclades_port * info, unsigned long *value)
|
4227 |
|
|
{
|
4228 |
|
|
return cy_put_user(info->default_timeout,value);
|
4229 |
|
|
}/* get_default_timeout */
|
4230 |
|
|
|
4231 |
|
|
/*
|
4232 |
|
|
* This routine allows the tty driver to implement device-
|
4233 |
|
|
* specific ioctl's. If the ioctl number passed in cmd is
|
4234 |
|
|
* not recognized by the driver, it should return ENOIOCTLCMD.
|
4235 |
|
|
*/
|
4236 |
|
|
static int
|
4237 |
|
|
cy_ioctl(struct tty_struct *tty, struct file * file,
|
4238 |
|
|
unsigned int cmd, unsigned long arg)
|
4239 |
|
|
{
|
4240 |
|
|
struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
|
4241 |
|
|
struct cyclades_icount cprev, cnow; /* kernel counter temps */
|
4242 |
|
|
struct serial_icounter_struct *p_cuser; /* user space */
|
4243 |
|
|
int ret_val = 0;
|
4244 |
|
|
unsigned long flags;
|
4245 |
|
|
|
4246 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_ioctl"))
|
4247 |
|
|
return -ENODEV;
|
4248 |
|
|
|
4249 |
|
|
#ifdef CY_DEBUG_OTHER
|
4250 |
|
|
printk("cyc:cy_ioctl ttyC%d, cmd = %x arg = %lx\n",
|
4251 |
|
|
info->line, cmd, arg); /* */
|
4252 |
|
|
#endif
|
4253 |
|
|
|
4254 |
|
|
switch (cmd) {
|
4255 |
|
|
case CYGETMON:
|
4256 |
|
|
ret_val = get_mon_info(info, (struct cyclades_monitor *)arg);
|
4257 |
|
|
break;
|
4258 |
|
|
case CYGETTHRESH:
|
4259 |
|
|
ret_val = get_threshold(info, (unsigned long *)arg);
|
4260 |
|
|
break;
|
4261 |
|
|
case CYSETTHRESH:
|
4262 |
|
|
ret_val = set_threshold(info, (unsigned long)arg);
|
4263 |
|
|
break;
|
4264 |
|
|
case CYGETDEFTHRESH:
|
4265 |
|
|
ret_val = get_default_threshold(info, (unsigned long *)arg);
|
4266 |
|
|
break;
|
4267 |
|
|
case CYSETDEFTHRESH:
|
4268 |
|
|
ret_val = set_default_threshold(info, (unsigned long)arg);
|
4269 |
|
|
break;
|
4270 |
|
|
case CYGETTIMEOUT:
|
4271 |
|
|
ret_val = get_timeout(info, (unsigned long *)arg);
|
4272 |
|
|
break;
|
4273 |
|
|
case CYSETTIMEOUT:
|
4274 |
|
|
ret_val = set_timeout(info, (unsigned long)arg);
|
4275 |
|
|
break;
|
4276 |
|
|
case CYGETDEFTIMEOUT:
|
4277 |
|
|
ret_val = get_default_timeout(info, (unsigned long *)arg);
|
4278 |
|
|
break;
|
4279 |
|
|
case CYSETDEFTIMEOUT:
|
4280 |
|
|
ret_val = set_default_timeout(info, (unsigned long)arg);
|
4281 |
|
|
break;
|
4282 |
|
|
case CYSETRFLOW:
|
4283 |
|
|
info->rflow = (int)arg;
|
4284 |
|
|
ret_val = 0;
|
4285 |
|
|
break;
|
4286 |
|
|
case CYGETRFLOW:
|
4287 |
|
|
ret_val = info->rflow;
|
4288 |
|
|
break;
|
4289 |
|
|
case CYSETRTSDTR_INV:
|
4290 |
|
|
info->rtsdtr_inv = (int)arg;
|
4291 |
|
|
ret_val = 0;
|
4292 |
|
|
break;
|
4293 |
|
|
case CYGETRTSDTR_INV:
|
4294 |
|
|
ret_val = info->rtsdtr_inv;
|
4295 |
|
|
break;
|
4296 |
|
|
case CYGETCARDINFO:
|
4297 |
|
|
if (copy_to_user((void *)arg, (void *)&cy_card[info->card],
|
4298 |
|
|
sizeof (struct cyclades_card))) {
|
4299 |
|
|
ret_val = -EFAULT;
|
4300 |
|
|
break;
|
4301 |
|
|
}
|
4302 |
|
|
ret_val = 0;
|
4303 |
|
|
break;
|
4304 |
|
|
case CYGETCD1400VER:
|
4305 |
|
|
ret_val = info->chip_rev;
|
4306 |
|
|
break;
|
4307 |
|
|
#ifndef CONFIG_CYZ_INTR
|
4308 |
|
|
case CYZSETPOLLCYCLE:
|
4309 |
|
|
cyz_polling_cycle = (arg * HZ) / 1000;
|
4310 |
|
|
ret_val = 0;
|
4311 |
|
|
break;
|
4312 |
|
|
case CYZGETPOLLCYCLE:
|
4313 |
|
|
ret_val = (cyz_polling_cycle * 1000) / HZ;
|
4314 |
|
|
break;
|
4315 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
4316 |
|
|
case CYSETWAIT:
|
4317 |
|
|
info->closing_wait = (unsigned short)arg * HZ/100;
|
4318 |
|
|
ret_val = 0;
|
4319 |
|
|
break;
|
4320 |
|
|
case CYGETWAIT:
|
4321 |
|
|
ret_val = info->closing_wait / (HZ/100);
|
4322 |
|
|
break;
|
4323 |
|
|
case TIOCMGET:
|
4324 |
|
|
ret_val = get_modem_info(info, (unsigned int *) arg);
|
4325 |
|
|
break;
|
4326 |
|
|
case TIOCMBIS:
|
4327 |
|
|
case TIOCMBIC:
|
4328 |
|
|
case TIOCMSET:
|
4329 |
|
|
ret_val = set_modem_info(info, cmd, (unsigned int *) arg);
|
4330 |
|
|
break;
|
4331 |
|
|
case TIOCGSERIAL:
|
4332 |
|
|
ret_val = get_serial_info(info, (struct serial_struct *) arg);
|
4333 |
|
|
break;
|
4334 |
|
|
case TIOCSSERIAL:
|
4335 |
|
|
ret_val = set_serial_info(info, (struct serial_struct *) arg);
|
4336 |
|
|
break;
|
4337 |
|
|
case TIOCSERGETLSR: /* Get line status register */
|
4338 |
|
|
ret_val = get_lsr_info(info, (unsigned int *) arg);
|
4339 |
|
|
break;
|
4340 |
|
|
/*
|
4341 |
|
|
* Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
|
4342 |
|
|
* - mask passed in arg for lines of interest
|
4343 |
|
|
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
|
4344 |
|
|
* Caller should use TIOCGICOUNT to see which one it was
|
4345 |
|
|
*/
|
4346 |
|
|
case TIOCMIWAIT:
|
4347 |
|
|
CY_LOCK(info, flags);
|
4348 |
|
|
/* note the counters on entry */
|
4349 |
|
|
cprev = info->icount;
|
4350 |
|
|
CY_UNLOCK(info, flags);
|
4351 |
|
|
while (1) {
|
4352 |
|
|
interruptible_sleep_on(&info->delta_msr_wait);
|
4353 |
|
|
/* see if a signal did it */
|
4354 |
|
|
if (signal_pending(current)) {
|
4355 |
|
|
return -ERESTARTSYS;
|
4356 |
|
|
}
|
4357 |
|
|
|
4358 |
|
|
CY_LOCK(info, flags);
|
4359 |
|
|
cnow = info->icount; /* atomic copy */
|
4360 |
|
|
CY_UNLOCK(info, flags);
|
4361 |
|
|
|
4362 |
|
|
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
|
4363 |
|
|
cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
|
4364 |
|
|
return -EIO; /* no change => error */
|
4365 |
|
|
}
|
4366 |
|
|
if ( ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
|
4367 |
|
|
((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
|
4368 |
|
|
((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
|
4369 |
|
|
((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
|
4370 |
|
|
return 0;
|
4371 |
|
|
}
|
4372 |
|
|
cprev = cnow;
|
4373 |
|
|
}
|
4374 |
|
|
/* NOTREACHED */
|
4375 |
|
|
|
4376 |
|
|
/*
|
4377 |
|
|
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
|
4378 |
|
|
* Return: write counters to the user passed counter struct
|
4379 |
|
|
* NB: both 1->0 and 0->1 transitions are counted except for
|
4380 |
|
|
* RI where only 0->1 is counted.
|
4381 |
|
|
*/
|
4382 |
|
|
case TIOCGICOUNT:
|
4383 |
|
|
CY_LOCK(info, flags);
|
4384 |
|
|
cnow = info->icount;
|
4385 |
|
|
CY_UNLOCK(info, flags);
|
4386 |
|
|
p_cuser = (struct serial_icounter_struct *) arg;
|
4387 |
|
|
ret_val = put_user(cnow.cts, &p_cuser->cts);
|
4388 |
|
|
if (ret_val) return ret_val;
|
4389 |
|
|
ret_val = put_user(cnow.dsr, &p_cuser->dsr);
|
4390 |
|
|
if (ret_val) return ret_val;
|
4391 |
|
|
ret_val = put_user(cnow.rng, &p_cuser->rng);
|
4392 |
|
|
if (ret_val) return ret_val;
|
4393 |
|
|
ret_val = put_user(cnow.dcd, &p_cuser->dcd);
|
4394 |
|
|
if (ret_val) return ret_val;
|
4395 |
|
|
ret_val = put_user(cnow.rx, &p_cuser->rx);
|
4396 |
|
|
if (ret_val) return ret_val;
|
4397 |
|
|
ret_val = put_user(cnow.tx, &p_cuser->tx);
|
4398 |
|
|
if (ret_val) return ret_val;
|
4399 |
|
|
ret_val = put_user(cnow.frame, &p_cuser->frame);
|
4400 |
|
|
if (ret_val) return ret_val;
|
4401 |
|
|
ret_val = put_user(cnow.overrun, &p_cuser->overrun);
|
4402 |
|
|
if (ret_val) return ret_val;
|
4403 |
|
|
ret_val = put_user(cnow.parity, &p_cuser->parity);
|
4404 |
|
|
if (ret_val) return ret_val;
|
4405 |
|
|
ret_val = put_user(cnow.brk, &p_cuser->brk);
|
4406 |
|
|
if (ret_val) return ret_val;
|
4407 |
|
|
ret_val = put_user(cnow.buf_overrun, &p_cuser->buf_overrun);
|
4408 |
|
|
if (ret_val) return ret_val;
|
4409 |
|
|
ret_val = 0;
|
4410 |
|
|
break;
|
4411 |
|
|
default:
|
4412 |
|
|
ret_val = -ENOIOCTLCMD;
|
4413 |
|
|
}
|
4414 |
|
|
|
4415 |
|
|
#ifdef CY_DEBUG_OTHER
|
4416 |
|
|
printk(" cyc:cy_ioctl done\n");
|
4417 |
|
|
#endif
|
4418 |
|
|
|
4419 |
|
|
return ret_val;
|
4420 |
|
|
} /* cy_ioctl */
|
4421 |
|
|
|
4422 |
|
|
|
4423 |
|
|
/*
|
4424 |
|
|
* This routine allows the tty driver to be notified when
|
4425 |
|
|
* device's termios settings have changed. Note that a
|
4426 |
|
|
* well-designed tty driver should be prepared to accept the case
|
4427 |
|
|
* where old == NULL, and try to do something rational.
|
4428 |
|
|
*/
|
4429 |
|
|
static void
|
4430 |
|
|
cy_set_termios(struct tty_struct *tty, struct termios * old_termios)
|
4431 |
|
|
{
|
4432 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4433 |
|
|
|
4434 |
|
|
#ifdef CY_DEBUG_OTHER
|
4435 |
|
|
printk("cyc:cy_set_termios ttyC%d\n", info->line);
|
4436 |
|
|
#endif
|
4437 |
|
|
|
4438 |
|
|
if ((tty->termios->c_cflag == old_termios->c_cflag) &&
|
4439 |
|
|
((tty->termios->c_iflag & (IXON|IXANY)) ==
|
4440 |
|
|
(old_termios->c_iflag & (IXON|IXANY))))
|
4441 |
|
|
return;
|
4442 |
|
|
set_line_char(info);
|
4443 |
|
|
|
4444 |
|
|
if ((old_termios->c_cflag & CRTSCTS) &&
|
4445 |
|
|
!(tty->termios->c_cflag & CRTSCTS)) {
|
4446 |
|
|
tty->hw_stopped = 0;
|
4447 |
|
|
cy_start(tty);
|
4448 |
|
|
}
|
4449 |
|
|
#if 0
|
4450 |
|
|
/*
|
4451 |
|
|
* No need to wake up processes in open wait, since they
|
4452 |
|
|
* sample the CLOCAL flag once, and don't recheck it.
|
4453 |
|
|
* XXX It's not clear whether the current behavior is correct
|
4454 |
|
|
* or not. Hence, this may change.....
|
4455 |
|
|
*/
|
4456 |
|
|
if (!(old_termios->c_cflag & CLOCAL) &&
|
4457 |
|
|
(tty->termios->c_cflag & CLOCAL))
|
4458 |
|
|
wake_up_interruptible(&info->open_wait);
|
4459 |
|
|
#endif
|
4460 |
|
|
|
4461 |
|
|
return;
|
4462 |
|
|
} /* cy_set_termios */
|
4463 |
|
|
|
4464 |
|
|
/* This routine is called by the upper-layer tty layer to signal
|
4465 |
|
|
that incoming characters should be throttled because the input
|
4466 |
|
|
buffers are close to full.
|
4467 |
|
|
*/
|
4468 |
|
|
static void
|
4469 |
|
|
cy_throttle(struct tty_struct * tty)
|
4470 |
|
|
{
|
4471 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4472 |
|
|
unsigned long flags;
|
4473 |
|
|
unsigned char *base_addr;
|
4474 |
|
|
int card,chip,channel,index;
|
4475 |
|
|
|
4476 |
|
|
#ifdef CY_DEBUG_THROTTLE
|
4477 |
|
|
char buf[64];
|
4478 |
|
|
|
4479 |
|
|
printk("cyc:throttle %s: %d....ttyC%d\n",
|
4480 |
|
|
tty_name(tty, buf),
|
4481 |
|
|
tty->ldisc.chars_in_buffer(tty), info->line);
|
4482 |
|
|
#endif
|
4483 |
|
|
|
4484 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_throttle")){
|
4485 |
|
|
return;
|
4486 |
|
|
}
|
4487 |
|
|
|
4488 |
|
|
if (I_IXOFF(tty)) {
|
4489 |
|
|
info->x_char = STOP_CHAR(tty);
|
4490 |
|
|
/* Should use the "Send Special Character" feature!!! */
|
4491 |
|
|
}
|
4492 |
|
|
|
4493 |
|
|
card = info->card;
|
4494 |
|
|
channel = info->line - cy_card[card].first_line;
|
4495 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4496 |
|
|
chip = channel>>2;
|
4497 |
|
|
channel &= 0x03;
|
4498 |
|
|
index = cy_card[card].bus_index;
|
4499 |
|
|
base_addr = (unsigned char*)
|
4500 |
|
|
(cy_card[card].base_addr
|
4501 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4502 |
|
|
|
4503 |
|
|
CY_LOCK(info, flags);
|
4504 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
4505 |
|
|
if (info->rtsdtr_inv) {
|
4506 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), ~CyDTR);
|
4507 |
|
|
} else {
|
4508 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), ~CyRTS);
|
4509 |
|
|
}
|
4510 |
|
|
CY_UNLOCK(info, flags);
|
4511 |
|
|
} else {
|
4512 |
|
|
// Nothing to do!
|
4513 |
|
|
}
|
4514 |
|
|
|
4515 |
|
|
return;
|
4516 |
|
|
} /* cy_throttle */
|
4517 |
|
|
|
4518 |
|
|
|
4519 |
|
|
/*
|
4520 |
|
|
* This routine notifies the tty driver that it should signal
|
4521 |
|
|
* that characters can now be sent to the tty without fear of
|
4522 |
|
|
* overrunning the input buffers of the line disciplines.
|
4523 |
|
|
*/
|
4524 |
|
|
static void
|
4525 |
|
|
cy_unthrottle(struct tty_struct * tty)
|
4526 |
|
|
{
|
4527 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4528 |
|
|
unsigned long flags;
|
4529 |
|
|
unsigned char *base_addr;
|
4530 |
|
|
int card,chip,channel,index;
|
4531 |
|
|
|
4532 |
|
|
#ifdef CY_DEBUG_THROTTLE
|
4533 |
|
|
char buf[64];
|
4534 |
|
|
|
4535 |
|
|
printk("cyc:unthrottle %s: %d....ttyC%d\n",
|
4536 |
|
|
tty_name(tty, buf),
|
4537 |
|
|
tty->ldisc.chars_in_buffer(tty), info->line);
|
4538 |
|
|
#endif
|
4539 |
|
|
|
4540 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_unthrottle")){
|
4541 |
|
|
return;
|
4542 |
|
|
}
|
4543 |
|
|
|
4544 |
|
|
if (I_IXOFF(tty)) {
|
4545 |
|
|
if (info->x_char)
|
4546 |
|
|
info->x_char = 0;
|
4547 |
|
|
else
|
4548 |
|
|
info->x_char = START_CHAR(tty);
|
4549 |
|
|
/* Should use the "Send Special Character" feature!!! */
|
4550 |
|
|
}
|
4551 |
|
|
|
4552 |
|
|
card = info->card;
|
4553 |
|
|
channel = info->line - cy_card[card].first_line;
|
4554 |
|
|
if (!IS_CYC_Z(cy_card[card])) {
|
4555 |
|
|
chip = channel>>2;
|
4556 |
|
|
channel &= 0x03;
|
4557 |
|
|
index = cy_card[card].bus_index;
|
4558 |
|
|
base_addr = (unsigned char*)
|
4559 |
|
|
(cy_card[card].base_addr
|
4560 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4561 |
|
|
|
4562 |
|
|
CY_LOCK(info, flags);
|
4563 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index), (u_char)channel);
|
4564 |
|
|
if (info->rtsdtr_inv) {
|
4565 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR2<<index), CyDTR);
|
4566 |
|
|
} else {
|
4567 |
|
|
cy_writeb((u_long)base_addr+(CyMSVR1<<index), CyRTS);
|
4568 |
|
|
}
|
4569 |
|
|
CY_UNLOCK(info, flags);
|
4570 |
|
|
}else{
|
4571 |
|
|
// Nothing to do!
|
4572 |
|
|
}
|
4573 |
|
|
|
4574 |
|
|
return;
|
4575 |
|
|
} /* cy_unthrottle */
|
4576 |
|
|
|
4577 |
|
|
|
4578 |
|
|
/* cy_start and cy_stop provide software output flow control as a
|
4579 |
|
|
function of XON/XOFF, software CTS, and other such stuff.
|
4580 |
|
|
*/
|
4581 |
|
|
static void
|
4582 |
|
|
cy_stop(struct tty_struct *tty)
|
4583 |
|
|
{
|
4584 |
|
|
struct cyclades_card *cinfo;
|
4585 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4586 |
|
|
unsigned char *base_addr;
|
4587 |
|
|
int chip,channel,index;
|
4588 |
|
|
unsigned long flags;
|
4589 |
|
|
|
4590 |
|
|
#ifdef CY_DEBUG_OTHER
|
4591 |
|
|
printk("cyc:cy_stop ttyC%d\n", info->line); /* */
|
4592 |
|
|
#endif
|
4593 |
|
|
|
4594 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_stop"))
|
4595 |
|
|
return;
|
4596 |
|
|
|
4597 |
|
|
cinfo = &cy_card[info->card];
|
4598 |
|
|
channel = info->line - cinfo->first_line;
|
4599 |
|
|
if (!IS_CYC_Z(*cinfo)) {
|
4600 |
|
|
index = cinfo->bus_index;
|
4601 |
|
|
chip = channel>>2;
|
4602 |
|
|
channel &= 0x03;
|
4603 |
|
|
base_addr = (unsigned char*)
|
4604 |
|
|
(cy_card[info->card].base_addr
|
4605 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4606 |
|
|
|
4607 |
|
|
CY_LOCK(info, flags);
|
4608 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index),
|
4609 |
|
|
(u_char)(channel & 0x0003)); /* index channel */
|
4610 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
4611 |
|
|
cy_readb(base_addr+(CySRER<<index)) & ~CyTxRdy);
|
4612 |
|
|
CY_UNLOCK(info, flags);
|
4613 |
|
|
} else {
|
4614 |
|
|
// Nothing to do!
|
4615 |
|
|
}
|
4616 |
|
|
|
4617 |
|
|
return;
|
4618 |
|
|
} /* cy_stop */
|
4619 |
|
|
|
4620 |
|
|
|
4621 |
|
|
static void
|
4622 |
|
|
cy_start(struct tty_struct *tty)
|
4623 |
|
|
{
|
4624 |
|
|
struct cyclades_card *cinfo;
|
4625 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4626 |
|
|
unsigned char *base_addr;
|
4627 |
|
|
int chip,channel,index;
|
4628 |
|
|
unsigned long flags;
|
4629 |
|
|
|
4630 |
|
|
#ifdef CY_DEBUG_OTHER
|
4631 |
|
|
printk("cyc:cy_start ttyC%d\n", info->line); /* */
|
4632 |
|
|
#endif
|
4633 |
|
|
|
4634 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_start"))
|
4635 |
|
|
return;
|
4636 |
|
|
|
4637 |
|
|
cinfo = &cy_card[info->card];
|
4638 |
|
|
channel = info->line - cinfo->first_line;
|
4639 |
|
|
index = cinfo->bus_index;
|
4640 |
|
|
if (!IS_CYC_Z(*cinfo)) {
|
4641 |
|
|
chip = channel>>2;
|
4642 |
|
|
channel &= 0x03;
|
4643 |
|
|
base_addr = (unsigned char*)
|
4644 |
|
|
(cy_card[info->card].base_addr
|
4645 |
|
|
+ (cy_chip_offset[chip]<<index));
|
4646 |
|
|
|
4647 |
|
|
CY_LOCK(info, flags);
|
4648 |
|
|
cy_writeb((u_long)base_addr+(CyCAR<<index),
|
4649 |
|
|
(u_char)(channel & 0x0003)); /* index channel */
|
4650 |
|
|
cy_writeb((u_long)base_addr+(CySRER<<index),
|
4651 |
|
|
cy_readb(base_addr+(CySRER<<index)) | CyTxRdy);
|
4652 |
|
|
CY_UNLOCK(info, flags);
|
4653 |
|
|
} else {
|
4654 |
|
|
// Nothing to do!
|
4655 |
|
|
}
|
4656 |
|
|
|
4657 |
|
|
return;
|
4658 |
|
|
} /* cy_start */
|
4659 |
|
|
|
4660 |
|
|
|
4661 |
|
|
static void
|
4662 |
|
|
cy_flush_buffer(struct tty_struct *tty)
|
4663 |
|
|
{
|
4664 |
|
|
struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
|
4665 |
|
|
int card, channel, retval;
|
4666 |
|
|
unsigned long flags;
|
4667 |
|
|
|
4668 |
|
|
#ifdef CY_DEBUG_IO
|
4669 |
|
|
printk("cyc:cy_flush_buffer ttyC%d\n", info->line); /* */
|
4670 |
|
|
#endif
|
4671 |
|
|
|
4672 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_flush_buffer"))
|
4673 |
|
|
return;
|
4674 |
|
|
|
4675 |
|
|
card = info->card;
|
4676 |
|
|
channel = (info->line) - (cy_card[card].first_line);
|
4677 |
|
|
|
4678 |
|
|
CY_LOCK(info, flags);
|
4679 |
|
|
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
|
4680 |
|
|
CY_UNLOCK(info, flags);
|
4681 |
|
|
|
4682 |
|
|
if (IS_CYC_Z(cy_card[card])) { /* If it is a Z card, flush the on-board
|
4683 |
|
|
buffers as well */
|
4684 |
|
|
CY_LOCK(info, flags);
|
4685 |
|
|
retval = cyz_issue_cmd(&cy_card[card], channel, C_CM_FLUSH_TX, 0L);
|
4686 |
|
|
if (retval != 0) {
|
4687 |
|
|
printk("cyc: flush_buffer retval on ttyC%d was %x\n",
|
4688 |
|
|
info->line, retval);
|
4689 |
|
|
}
|
4690 |
|
|
CY_UNLOCK(info, flags);
|
4691 |
|
|
}
|
4692 |
|
|
wake_up_interruptible(&tty->write_wait);
|
4693 |
|
|
if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP))
|
4694 |
|
|
&& tty->ldisc.write_wakeup)
|
4695 |
|
|
(tty->ldisc.write_wakeup)(tty);
|
4696 |
|
|
} /* cy_flush_buffer */
|
4697 |
|
|
|
4698 |
|
|
|
4699 |
|
|
/*
|
4700 |
|
|
* cy_hangup() --- called by tty_hangup() when a hangup is signaled.
|
4701 |
|
|
*/
|
4702 |
|
|
static void
|
4703 |
|
|
cy_hangup(struct tty_struct *tty)
|
4704 |
|
|
{
|
4705 |
|
|
struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
|
4706 |
|
|
|
4707 |
|
|
#ifdef CY_DEBUG_OTHER
|
4708 |
|
|
printk("cyc:cy_hangup ttyC%d\n", info->line); /* */
|
4709 |
|
|
#endif
|
4710 |
|
|
|
4711 |
|
|
if (serial_paranoia_check(info, tty->device, "cy_hangup"))
|
4712 |
|
|
return;
|
4713 |
|
|
|
4714 |
|
|
cy_flush_buffer(tty);
|
4715 |
|
|
shutdown(info);
|
4716 |
|
|
info->event = 0;
|
4717 |
|
|
info->count = 0;
|
4718 |
|
|
#ifdef CY_DEBUG_COUNT
|
4719 |
|
|
printk("cyc:cy_hangup (%d): setting count to 0\n", current->pid);
|
4720 |
|
|
#endif
|
4721 |
|
|
info->tty = 0;
|
4722 |
|
|
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE);
|
4723 |
|
|
wake_up_interruptible(&info->open_wait);
|
4724 |
|
|
} /* cy_hangup */
|
4725 |
|
|
|
4726 |
|
|
|
4727 |
|
|
/*
|
4728 |
|
|
* ---------------------------------------------------------------------
|
4729 |
|
|
* cy_init() and friends
|
4730 |
|
|
*
|
4731 |
|
|
* cy_init() is called at boot-time to initialize the serial driver.
|
4732 |
|
|
* ---------------------------------------------------------------------
|
4733 |
|
|
*/
|
4734 |
|
|
|
4735 |
|
|
/* initialize chips on Cyclom-Y card -- return number of valid
|
4736 |
|
|
chips (which is number of ports/4) */
|
4737 |
|
|
static unsigned short __init
|
4738 |
|
|
cyy_init_card(volatile ucchar *true_base_addr,int index)
|
4739 |
|
|
{
|
4740 |
|
|
unsigned int chip_number;
|
4741 |
|
|
volatile ucchar* base_addr;
|
4742 |
|
|
|
4743 |
|
|
cy_writeb((u_long)true_base_addr+(Cy_HwReset<<index), 0);
|
4744 |
|
|
/* Cy_HwReset is 0x1400 */
|
4745 |
|
|
cy_writeb((u_long)true_base_addr+(Cy_ClrIntr<<index), 0);
|
4746 |
|
|
/* Cy_ClrIntr is 0x1800 */
|
4747 |
|
|
udelay(500L);
|
4748 |
|
|
|
4749 |
|
|
for(chip_number=0; chip_number<CyMAX_CHIPS_PER_CARD; chip_number++){
|
4750 |
|
|
base_addr = true_base_addr
|
4751 |
|
|
+ (cy_chip_offset[chip_number]<<index);
|
4752 |
|
|
mdelay(1);
|
4753 |
|
|
if(cy_readb(base_addr+(CyCCR<<index)) != 0x00){
|
4754 |
|
|
/*************
|
4755 |
|
|
printk(" chip #%d at %#6lx is never idle (CCR != 0)\n",
|
4756 |
|
|
chip_number, (unsigned long)base_addr);
|
4757 |
|
|
*************/
|
4758 |
|
|
return chip_number;
|
4759 |
|
|
}
|
4760 |
|
|
|
4761 |
|
|
cy_writeb((u_long)base_addr+(CyGFRCR<<index), 0);
|
4762 |
|
|
udelay(10L);
|
4763 |
|
|
|
4764 |
|
|
/* The Cyclom-16Y does not decode address bit 9 and therefore
|
4765 |
|
|
cannot distinguish between references to chip 0 and a non-
|
4766 |
|
|
existent chip 4. If the preceding clearing of the supposed
|
4767 |
|
|
chip 4 GFRCR register appears at chip 0, there is no chip 4
|
4768 |
|
|
and this must be a Cyclom-16Y, not a Cyclom-32Ye.
|
4769 |
|
|
*/
|
4770 |
|
|
if (chip_number == 4
|
4771 |
|
|
&& cy_readb(true_base_addr
|
4772 |
|
|
+ (cy_chip_offset[0]<<index)
|
4773 |
|
|
+ (CyGFRCR<<index)) == 0){
|
4774 |
|
|
return chip_number;
|
4775 |
|
|
}
|
4776 |
|
|
|
4777 |
|
|
cy_writeb((u_long)base_addr+(CyCCR<<index), CyCHIP_RESET);
|
4778 |
|
|
mdelay(1);
|
4779 |
|
|
|
4780 |
|
|
if(cy_readb(base_addr+(CyGFRCR<<index)) == 0x00){
|
4781 |
|
|
/*
|
4782 |
|
|
printk(" chip #%d at %#6lx is not responding ",
|
4783 |
|
|
chip_number, (unsigned long)base_addr);
|
4784 |
|
|
printk("(GFRCR stayed 0)\n",
|
4785 |
|
|
*/
|
4786 |
|
|
return chip_number;
|
4787 |
|
|
}
|
4788 |
|
|
if((0xf0 & (cy_readb(base_addr+(CyGFRCR<<index)))) != 0x40){
|
4789 |
|
|
/*
|
4790 |
|
|
printk(" chip #%d at %#6lx is not valid (GFRCR == %#2x)\n",
|
4791 |
|
|
chip_number, (unsigned long)base_addr,
|
4792 |
|
|
base_addr[CyGFRCR<<index]);
|
4793 |
|
|
*/
|
4794 |
|
|
return chip_number;
|
4795 |
|
|
}
|
4796 |
|
|
cy_writeb((u_long)base_addr+(CyGCR<<index), CyCH0_SERIAL);
|
4797 |
|
|
if (cy_readb(base_addr+(CyGFRCR<<index)) >= CD1400_REV_J){
|
4798 |
|
|
/* It is a CD1400 rev. J or later */
|
4799 |
|
|
/* Impossible to reach 5ms with this chip.
|
4800 |
|
|
Changed to 2ms instead (f = 500 Hz). */
|
4801 |
|
|
cy_writeb((u_long)base_addr+(CyPPR<<index), CyCLOCK_60_2MS);
|
4802 |
|
|
} else {
|
4803 |
|
|
/* f = 200 Hz */
|
4804 |
|
|
cy_writeb((u_long)base_addr+(CyPPR<<index), CyCLOCK_25_5MS);
|
4805 |
|
|
}
|
4806 |
|
|
|
4807 |
|
|
/*
|
4808 |
|
|
printk(" chip #%d at %#6lx is rev 0x%2x\n",
|
4809 |
|
|
chip_number, (unsigned long)base_addr,
|
4810 |
|
|
cy_readb(base_addr+(CyGFRCR<<index)));
|
4811 |
|
|
*/
|
4812 |
|
|
}
|
4813 |
|
|
return chip_number;
|
4814 |
|
|
} /* cyy_init_card */
|
4815 |
|
|
|
4816 |
|
|
/*
|
4817 |
|
|
* ---------------------------------------------------------------------
|
4818 |
|
|
* cy_detect_isa() - Probe for Cyclom-Y/ISA boards.
|
4819 |
|
|
* sets global variables and return the number of ISA boards found.
|
4820 |
|
|
* ---------------------------------------------------------------------
|
4821 |
|
|
*/
|
4822 |
|
|
static int __init
|
4823 |
|
|
cy_detect_isa(void)
|
4824 |
|
|
{
|
4825 |
|
|
#ifdef CONFIG_ISA
|
4826 |
|
|
unsigned short cy_isa_irq,nboard;
|
4827 |
|
|
volatile ucchar *cy_isa_address;
|
4828 |
|
|
unsigned short i,j,cy_isa_nchan;
|
4829 |
|
|
#ifdef MODULE
|
4830 |
|
|
int isparam = 0;
|
4831 |
|
|
#endif
|
4832 |
|
|
|
4833 |
|
|
nboard = 0;
|
4834 |
|
|
|
4835 |
|
|
#ifdef MODULE
|
4836 |
|
|
/* Check for module parameters */
|
4837 |
|
|
for(i = 0 ; i < NR_CARDS; i++) {
|
4838 |
|
|
if (maddr[i] || i) {
|
4839 |
|
|
isparam = 1;
|
4840 |
|
|
cy_isa_addresses[i] = (ucchar *)maddr[i];
|
4841 |
|
|
}
|
4842 |
|
|
if (!maddr[i])
|
4843 |
|
|
break;
|
4844 |
|
|
}
|
4845 |
|
|
#endif
|
4846 |
|
|
|
4847 |
|
|
/* scan the address table probing for Cyclom-Y/ISA boards */
|
4848 |
|
|
for (i = 0 ; i < NR_ISA_ADDRS ; i++) {
|
4849 |
|
|
cy_isa_address = cy_isa_addresses[i];
|
4850 |
|
|
if (cy_isa_address == 0x0000) {
|
4851 |
|
|
return(nboard);
|
4852 |
|
|
}
|
4853 |
|
|
|
4854 |
|
|
/* probe for CD1400... */
|
4855 |
|
|
#if !defined(__alpha__)
|
4856 |
|
|
cy_isa_address = ioremap((ulong)cy_isa_address, CyISA_Ywin);
|
4857 |
|
|
#endif
|
4858 |
|
|
cy_isa_nchan = CyPORTS_PER_CHIP *
|
4859 |
|
|
cyy_init_card(cy_isa_address,0);
|
4860 |
|
|
if (cy_isa_nchan == 0) {
|
4861 |
|
|
continue;
|
4862 |
|
|
}
|
4863 |
|
|
|
4864 |
|
|
#ifdef MODULE
|
4865 |
|
|
if (isparam && irq[i])
|
4866 |
|
|
cy_isa_irq = irq[i];
|
4867 |
|
|
else
|
4868 |
|
|
#endif
|
4869 |
|
|
/* find out the board's irq by probing */
|
4870 |
|
|
cy_isa_irq = detect_isa_irq(cy_isa_address);
|
4871 |
|
|
if (cy_isa_irq == 0) {
|
4872 |
|
|
printk("Cyclom-Y/ISA found at 0x%lx ",
|
4873 |
|
|
(unsigned long) cy_isa_address);
|
4874 |
|
|
printk("but the IRQ could not be detected.\n");
|
4875 |
|
|
continue;
|
4876 |
|
|
}
|
4877 |
|
|
|
4878 |
|
|
if((cy_next_channel+cy_isa_nchan) > NR_PORTS) {
|
4879 |
|
|
printk("Cyclom-Y/ISA found at 0x%lx ",
|
4880 |
|
|
(unsigned long) cy_isa_address);
|
4881 |
|
|
printk("but no more channels are available.\n");
|
4882 |
|
|
printk("Change NR_PORTS in cyclades.c and recompile kernel.\n");
|
4883 |
|
|
return(nboard);
|
4884 |
|
|
}
|
4885 |
|
|
/* fill the next cy_card structure available */
|
4886 |
|
|
for (j = 0 ; j < NR_CARDS ; j++) {
|
4887 |
|
|
if (cy_card[j].base_addr == 0) break;
|
4888 |
|
|
}
|
4889 |
|
|
if (j == NR_CARDS) { /* no more cy_cards available */
|
4890 |
|
|
printk("Cyclom-Y/ISA found at 0x%lx ",
|
4891 |
|
|
(unsigned long) cy_isa_address);
|
4892 |
|
|
printk("but no more cards can be used .\n");
|
4893 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
4894 |
|
|
return(nboard);
|
4895 |
|
|
}
|
4896 |
|
|
|
4897 |
|
|
/* allocate IRQ */
|
4898 |
|
|
if(request_irq(cy_isa_irq, cyy_interrupt,
|
4899 |
|
|
SA_INTERRUPT, "Cyclom-Y", &cy_card[j]))
|
4900 |
|
|
{
|
4901 |
|
|
printk("Cyclom-Y/ISA found at 0x%lx ",
|
4902 |
|
|
(unsigned long) cy_isa_address);
|
4903 |
|
|
printk("but could not allocate IRQ#%d.\n",
|
4904 |
|
|
cy_isa_irq);
|
4905 |
|
|
return(nboard);
|
4906 |
|
|
}
|
4907 |
|
|
|
4908 |
|
|
/* set cy_card */
|
4909 |
|
|
cy_card[j].base_addr = (u_long) cy_isa_address;
|
4910 |
|
|
cy_card[j].ctl_addr = 0;
|
4911 |
|
|
cy_card[j].irq = (int) cy_isa_irq;
|
4912 |
|
|
cy_card[j].bus_index = 0;
|
4913 |
|
|
cy_card[j].first_line = cy_next_channel;
|
4914 |
|
|
cy_card[j].num_chips = cy_isa_nchan/4;
|
4915 |
|
|
nboard++;
|
4916 |
|
|
|
4917 |
|
|
/* print message */
|
4918 |
|
|
printk("Cyclom-Y/ISA #%d: 0x%lx-0x%lx, IRQ%d, ",
|
4919 |
|
|
j+1, (unsigned long) cy_isa_address,
|
4920 |
|
|
(unsigned long)(cy_isa_address + (CyISA_Ywin - 1)),
|
4921 |
|
|
cy_isa_irq);
|
4922 |
|
|
printk("%d channels starting from port %d.\n",
|
4923 |
|
|
cy_isa_nchan, cy_next_channel);
|
4924 |
|
|
cy_next_channel += cy_isa_nchan;
|
4925 |
|
|
}
|
4926 |
|
|
return(nboard);
|
4927 |
|
|
#else
|
4928 |
|
|
return(0);
|
4929 |
|
|
#endif /* CONFIG_ISA */
|
4930 |
|
|
} /* cy_detect_isa */
|
4931 |
|
|
|
4932 |
|
|
static void
|
4933 |
|
|
plx_init(uclong addr, uclong initctl)
|
4934 |
|
|
{
|
4935 |
|
|
/* Reset PLX */
|
4936 |
|
|
cy_writel(addr + initctl, cy_readl(addr + initctl) | 0x40000000);
|
4937 |
|
|
udelay(100L);
|
4938 |
|
|
cy_writel(addr + initctl, cy_readl(addr + initctl) & ~0x40000000);
|
4939 |
|
|
|
4940 |
|
|
/* Reload Config. Registers from EEPROM */
|
4941 |
|
|
cy_writel(addr + initctl, cy_readl(addr + initctl) | 0x20000000);
|
4942 |
|
|
udelay(100L);
|
4943 |
|
|
cy_writel(addr + initctl, cy_readl(addr + initctl) & ~0x20000000);
|
4944 |
|
|
}
|
4945 |
|
|
|
4946 |
|
|
/*
|
4947 |
|
|
* ---------------------------------------------------------------------
|
4948 |
|
|
* cy_detect_pci() - Test PCI bus presence and Cyclom-Ye/PCI.
|
4949 |
|
|
* sets global variables and return the number of PCI boards found.
|
4950 |
|
|
* ---------------------------------------------------------------------
|
4951 |
|
|
*/
|
4952 |
|
|
static int __init
|
4953 |
|
|
cy_detect_pci(void)
|
4954 |
|
|
{
|
4955 |
|
|
#ifdef CONFIG_PCI
|
4956 |
|
|
|
4957 |
|
|
struct pci_dev *pdev = NULL;
|
4958 |
|
|
unsigned char cyy_rev_id;
|
4959 |
|
|
unsigned char cy_pci_irq = 0;
|
4960 |
|
|
uclong cy_pci_phys0, cy_pci_phys2;
|
4961 |
|
|
uclong cy_pci_addr0, cy_pci_addr2;
|
4962 |
|
|
unsigned short i,j,cy_pci_nchan, plx_ver;
|
4963 |
|
|
unsigned short device_id,dev_index = 0;
|
4964 |
|
|
uclong mailbox;
|
4965 |
|
|
uclong Ze_addr0[NR_CARDS], Ze_addr2[NR_CARDS], ZeIndex = 0;
|
4966 |
|
|
uclong Ze_phys0[NR_CARDS], Ze_phys2[NR_CARDS];
|
4967 |
|
|
unsigned char Ze_irq[NR_CARDS];
|
4968 |
|
|
struct pci_dev *Ze_pdev[NR_CARDS];
|
4969 |
|
|
|
4970 |
|
|
for (i = 0; i < NR_CARDS; i++) {
|
4971 |
|
|
/* look for a Cyclades card by vendor and device id */
|
4972 |
|
|
while((device_id = cy_pci_dev_id[dev_index]) != 0) {
|
4973 |
|
|
if((pdev = pci_find_device(PCI_VENDOR_ID_CYCLADES,
|
4974 |
|
|
device_id, pdev)) == NULL) {
|
4975 |
|
|
dev_index++; /* try next device id */
|
4976 |
|
|
} else {
|
4977 |
|
|
break; /* found a board */
|
4978 |
|
|
}
|
4979 |
|
|
}
|
4980 |
|
|
|
4981 |
|
|
if (device_id == 0)
|
4982 |
|
|
break;
|
4983 |
|
|
|
4984 |
|
|
if (pci_enable_device(pdev))
|
4985 |
|
|
continue;
|
4986 |
|
|
|
4987 |
|
|
/* read PCI configuration area */
|
4988 |
|
|
cy_pci_irq = pdev->irq;
|
4989 |
|
|
cy_pci_phys0 = pci_resource_start(pdev, 0);
|
4990 |
|
|
cy_pci_phys2 = pci_resource_start(pdev, 2);
|
4991 |
|
|
pci_read_config_byte(pdev, PCI_REVISION_ID, &cyy_rev_id);
|
4992 |
|
|
|
4993 |
|
|
device_id &= ~PCI_DEVICE_ID_MASK;
|
4994 |
|
|
|
4995 |
|
|
if ((device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo)
|
4996 |
|
|
|| (device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi)){
|
4997 |
|
|
#ifdef CY_PCI_DEBUG
|
4998 |
|
|
printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
|
4999 |
|
|
pdev->bus->number, pdev->devfn);
|
5000 |
|
|
printk("rev_id=%d) IRQ%d\n",
|
5001 |
|
|
cyy_rev_id, (int)cy_pci_irq);
|
5002 |
|
|
printk("Cyclom-Y/PCI:found winaddr=0x%lx ctladdr=0x%lx\n",
|
5003 |
|
|
(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
|
5004 |
|
|
#endif
|
5005 |
|
|
|
5006 |
|
|
if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
|
5007 |
|
|
printk(" Warning: PCI I/O bit incorrectly set. "
|
5008 |
|
|
"Ignoring it...\n");
|
5009 |
|
|
pdev->resource[2].flags &= ~IORESOURCE_IO;
|
5010 |
|
|
}
|
5011 |
|
|
|
5012 |
|
|
/* Although we don't use this I/O region, we should
|
5013 |
|
|
request it from the kernel anyway, to avoid problems
|
5014 |
|
|
with other drivers accessing it. */
|
5015 |
|
|
if (pci_request_regions(pdev, "Cyclom-Y") != 0) {
|
5016 |
|
|
printk(KERN_ERR "cyclades: failed to reserve PCI "
|
5017 |
|
|
"resources\n");
|
5018 |
|
|
continue;
|
5019 |
|
|
}
|
5020 |
|
|
|
5021 |
|
|
#if defined(__alpha__)
|
5022 |
|
|
if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
|
5023 |
|
|
printk("Cyclom-Y/PCI (bus=0x0%x, pci_id=0x%x, ",
|
5024 |
|
|
pdev->bus->number, pdev->devfn);
|
5025 |
|
|
printk("rev_id=%d) IRQ%d\n",
|
5026 |
|
|
cyy_rev_id, (int)cy_pci_irq);
|
5027 |
|
|
printk("Cyclom-Y/PCI:found winaddr=0x%lx ctladdr=0x%lx\n",
|
5028 |
|
|
(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
|
5029 |
|
|
printk("Cyclom-Y/PCI not supported for low addresses in "
|
5030 |
|
|
"Alpha systems.\n");
|
5031 |
|
|
i--;
|
5032 |
|
|
continue;
|
5033 |
|
|
}
|
5034 |
|
|
#endif
|
5035 |
|
|
cy_pci_addr0 = (ulong)ioremap(cy_pci_phys0, CyPCI_Yctl);
|
5036 |
|
|
cy_pci_addr2 = (ulong)ioremap(cy_pci_phys2, CyPCI_Ywin);
|
5037 |
|
|
|
5038 |
|
|
#ifdef CY_PCI_DEBUG
|
5039 |
|
|
printk("Cyclom-Y/PCI: relocate winaddr=0x%lx ctladdr=0x%lx\n",
|
5040 |
|
|
(u_long)cy_pci_addr2, (u_long)cy_pci_addr0);
|
5041 |
|
|
#endif
|
5042 |
|
|
cy_pci_nchan = (unsigned short)(CyPORTS_PER_CHIP *
|
5043 |
|
|
cyy_init_card((volatile ucchar *)cy_pci_addr2, 1));
|
5044 |
|
|
if(cy_pci_nchan == 0) {
|
5045 |
|
|
printk("Cyclom-Y PCI host card with ");
|
5046 |
|
|
printk("no Serial-Modules at 0x%lx.\n",
|
5047 |
|
|
(ulong) cy_pci_phys2);
|
5048 |
|
|
i--;
|
5049 |
|
|
continue;
|
5050 |
|
|
}
|
5051 |
|
|
if((cy_next_channel+cy_pci_nchan) > NR_PORTS) {
|
5052 |
|
|
printk("Cyclom-Y/PCI found at 0x%lx ",
|
5053 |
|
|
(ulong) cy_pci_phys2);
|
5054 |
|
|
printk("but no channels are available.\n");
|
5055 |
|
|
printk("Change NR_PORTS in cyclades.c and recompile kernel.\n");
|
5056 |
|
|
return(i);
|
5057 |
|
|
}
|
5058 |
|
|
/* fill the next cy_card structure available */
|
5059 |
|
|
for (j = 0 ; j < NR_CARDS ; j++) {
|
5060 |
|
|
if (cy_card[j].base_addr == 0) break;
|
5061 |
|
|
}
|
5062 |
|
|
if (j == NR_CARDS) { /* no more cy_cards available */
|
5063 |
|
|
printk("Cyclom-Y/PCI found at 0x%lx ",
|
5064 |
|
|
(ulong) cy_pci_phys2);
|
5065 |
|
|
printk("but no more cards can be used.\n");
|
5066 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
5067 |
|
|
return(i);
|
5068 |
|
|
}
|
5069 |
|
|
|
5070 |
|
|
/* allocate IRQ */
|
5071 |
|
|
if(request_irq(cy_pci_irq, cyy_interrupt,
|
5072 |
|
|
SA_SHIRQ, "Cyclom-Y", &cy_card[j]))
|
5073 |
|
|
{
|
5074 |
|
|
printk("Cyclom-Y/PCI found at 0x%lx ",
|
5075 |
|
|
(ulong) cy_pci_phys2);
|
5076 |
|
|
printk("but could not allocate IRQ%d.\n",
|
5077 |
|
|
cy_pci_irq);
|
5078 |
|
|
return(i);
|
5079 |
|
|
}
|
5080 |
|
|
|
5081 |
|
|
/* set cy_card */
|
5082 |
|
|
cy_card[j].base_phys = (ulong)cy_pci_phys2;
|
5083 |
|
|
cy_card[j].ctl_phys = (ulong)cy_pci_phys0;
|
5084 |
|
|
cy_card[j].base_addr = (ulong)cy_pci_addr2;
|
5085 |
|
|
cy_card[j].ctl_addr = (ulong)cy_pci_addr0;
|
5086 |
|
|
cy_card[j].irq = (int) cy_pci_irq;
|
5087 |
|
|
cy_card[j].bus_index = 1;
|
5088 |
|
|
cy_card[j].first_line = cy_next_channel;
|
5089 |
|
|
cy_card[j].num_chips = cy_pci_nchan/4;
|
5090 |
|
|
cy_card[j].pdev = pdev;
|
5091 |
|
|
|
5092 |
|
|
/* enable interrupts in the PCI interface */
|
5093 |
|
|
plx_ver = cy_readb(cy_pci_addr2 + CyPLX_VER) & 0x0f;
|
5094 |
|
|
switch (plx_ver) {
|
5095 |
|
|
case PLX_9050:
|
5096 |
|
|
|
5097 |
|
|
cy_writeb(cy_pci_addr0+0x4c, 0x43);
|
5098 |
|
|
break;
|
5099 |
|
|
|
5100 |
|
|
case PLX_9060:
|
5101 |
|
|
case PLX_9080:
|
5102 |
|
|
default: /* Old boards, use PLX_9060 */
|
5103 |
|
|
|
5104 |
|
|
plx_init(cy_pci_addr0, 0x6c);
|
5105 |
|
|
/* For some yet unknown reason, once the PLX9060 reloads
|
5106 |
|
|
the EEPROM, the IRQ is lost and, thus, we have to
|
5107 |
|
|
re-write it to the PCI config. registers.
|
5108 |
|
|
This will remain here until we find a permanent fix. */
|
5109 |
|
|
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, cy_pci_irq);
|
5110 |
|
|
|
5111 |
|
|
cy_writew(cy_pci_addr0+0x68,
|
5112 |
|
|
cy_readw(cy_pci_addr0+0x68)|0x0900);
|
5113 |
|
|
break;
|
5114 |
|
|
}
|
5115 |
|
|
|
5116 |
|
|
/* print message */
|
5117 |
|
|
printk("Cyclom-Y/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
|
5118 |
|
|
j+1,
|
5119 |
|
|
(ulong)cy_pci_phys2,
|
5120 |
|
|
(ulong)(cy_pci_phys2 + CyPCI_Ywin - 1),
|
5121 |
|
|
(int)cy_pci_irq);
|
5122 |
|
|
printk("%d channels starting from port %d.\n",
|
5123 |
|
|
cy_pci_nchan, cy_next_channel);
|
5124 |
|
|
|
5125 |
|
|
cy_next_channel += cy_pci_nchan;
|
5126 |
|
|
}else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo){
|
5127 |
|
|
/* print message */
|
5128 |
|
|
printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
|
5129 |
|
|
pdev->bus->number, pdev->devfn);
|
5130 |
|
|
printk("rev_id=%d) IRQ%d\n",
|
5131 |
|
|
cyy_rev_id, (int)cy_pci_irq);
|
5132 |
|
|
printk("Cyclades-Z/PCI: found winaddr=0x%lx ctladdr=0x%lx\n",
|
5133 |
|
|
(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
|
5134 |
|
|
printk("Cyclades-Z/PCI not supported for low addresses\n");
|
5135 |
|
|
break;
|
5136 |
|
|
}else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi){
|
5137 |
|
|
#ifdef CY_PCI_DEBUG
|
5138 |
|
|
printk("Cyclades-Z/PCI (bus=0x0%x, pci_id=0x%x, ",
|
5139 |
|
|
pdev->bus->number, pdev->devfn);
|
5140 |
|
|
printk("rev_id=%d) IRQ%d\n",
|
5141 |
|
|
cyy_rev_id, (int)cy_pci_irq);
|
5142 |
|
|
printk("Cyclades-Z/PCI: found winaddr=0x%lx ctladdr=0x%lx\n",
|
5143 |
|
|
(ulong)cy_pci_phys2, (ulong)cy_pci_phys0);
|
5144 |
|
|
#endif
|
5145 |
|
|
cy_pci_addr0 = (ulong)ioremap(cy_pci_phys0, CyPCI_Zctl);
|
5146 |
|
|
|
5147 |
|
|
/* Disable interrupts on the PLX before resetting it */
|
5148 |
|
|
cy_writew(cy_pci_addr0+0x68,
|
5149 |
|
|
cy_readw(cy_pci_addr0+0x68) & ~0x0900);
|
5150 |
|
|
|
5151 |
|
|
plx_init(cy_pci_addr0, 0x6c);
|
5152 |
|
|
/* For some yet unknown reason, once the PLX9060 reloads
|
5153 |
|
|
the EEPROM, the IRQ is lost and, thus, we have to
|
5154 |
|
|
re-write it to the PCI config. registers.
|
5155 |
|
|
This will remain here until we find a permanent fix. */
|
5156 |
|
|
pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, cy_pci_irq);
|
5157 |
|
|
|
5158 |
|
|
mailbox = (uclong)cy_readl(&((struct RUNTIME_9060 *)
|
5159 |
|
|
cy_pci_addr0)->mail_box_0);
|
5160 |
|
|
|
5161 |
|
|
if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
|
5162 |
|
|
printk(" Warning: PCI I/O bit incorrectly set. "
|
5163 |
|
|
"Ignoring it...\n");
|
5164 |
|
|
pdev->resource[2].flags &= ~IORESOURCE_IO;
|
5165 |
|
|
}
|
5166 |
|
|
|
5167 |
|
|
/* Although we don't use this I/O region, we should
|
5168 |
|
|
request it from the kernel anyway, to avoid problems
|
5169 |
|
|
with other drivers accessing it. */
|
5170 |
|
|
|
5171 |
|
|
if (pci_request_regions(pdev, "Cyclades-Z") != 0) {
|
5172 |
|
|
printk(KERN_ERR "cyclades: failed to reserve PCI "
|
5173 |
|
|
"resources\n");
|
5174 |
|
|
continue;
|
5175 |
|
|
}
|
5176 |
|
|
|
5177 |
|
|
if (mailbox == ZE_V1) {
|
5178 |
|
|
cy_pci_addr2 = (ulong)ioremap(cy_pci_phys2, CyPCI_Ze_win);
|
5179 |
|
|
if (ZeIndex == NR_CARDS) {
|
5180 |
|
|
printk("Cyclades-Ze/PCI found at 0x%lx ",
|
5181 |
|
|
(ulong)cy_pci_phys2);
|
5182 |
|
|
printk("but no more cards can be used.\n");
|
5183 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
5184 |
|
|
} else {
|
5185 |
|
|
Ze_phys0[ZeIndex] = cy_pci_phys0;
|
5186 |
|
|
Ze_phys2[ZeIndex] = cy_pci_phys2;
|
5187 |
|
|
Ze_addr0[ZeIndex] = cy_pci_addr0;
|
5188 |
|
|
Ze_addr2[ZeIndex] = cy_pci_addr2;
|
5189 |
|
|
Ze_irq[ZeIndex] = cy_pci_irq;
|
5190 |
|
|
Ze_pdev[ZeIndex] = pdev;
|
5191 |
|
|
ZeIndex++;
|
5192 |
|
|
}
|
5193 |
|
|
i--;
|
5194 |
|
|
continue;
|
5195 |
|
|
} else {
|
5196 |
|
|
cy_pci_addr2 = (ulong)ioremap(cy_pci_phys2, CyPCI_Zwin);
|
5197 |
|
|
}
|
5198 |
|
|
|
5199 |
|
|
#ifdef CY_PCI_DEBUG
|
5200 |
|
|
printk("Cyclades-Z/PCI: relocate winaddr=0x%lx ctladdr=0x%lx\n",
|
5201 |
|
|
(ulong)cy_pci_addr2, (ulong)cy_pci_addr0);
|
5202 |
|
|
if (mailbox == ZO_V1) {
|
5203 |
|
|
cy_writel(&((struct RUNTIME_9060 *)
|
5204 |
|
|
(cy_pci_addr0))->loc_addr_base, WIN_CREG);
|
5205 |
|
|
PAUSE
|
5206 |
|
|
printk("Cyclades-8Zo/PCI: FPGA id %lx, ver %lx\n",
|
5207 |
|
|
(ulong)(0xff & cy_readl(&((struct CUSTOM_REG *)
|
5208 |
|
|
(cy_pci_addr2))->fpga_id)),
|
5209 |
|
|
(ulong)(0xff & cy_readl(&((struct CUSTOM_REG *)
|
5210 |
|
|
(cy_pci_addr2))->fpga_version)));
|
5211 |
|
|
cy_writel(&((struct RUNTIME_9060 *)
|
5212 |
|
|
(cy_pci_addr0))->loc_addr_base, WIN_RAM);
|
5213 |
|
|
} else {
|
5214 |
|
|
printk("Cyclades-Z/PCI: New Cyclades-Z board. FPGA not loaded\n");
|
5215 |
|
|
}
|
5216 |
|
|
#endif
|
5217 |
|
|
/* The following clears the firmware id word. This ensures
|
5218 |
|
|
that the driver will not attempt to talk to the board
|
5219 |
|
|
until it has been properly initialized.
|
5220 |
|
|
*/
|
5221 |
|
|
PAUSE
|
5222 |
|
|
if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
|
5223 |
|
|
cy_writel((ulong)(cy_pci_addr2+ID_ADDRESS), 0L);
|
5224 |
|
|
|
5225 |
|
|
/* This must be a Cyclades-8Zo/PCI. The extendable
|
5226 |
|
|
version will have a different device_id and will
|
5227 |
|
|
be allocated its maximum number of ports. */
|
5228 |
|
|
cy_pci_nchan = 8;
|
5229 |
|
|
|
5230 |
|
|
if((cy_next_channel+cy_pci_nchan) > NR_PORTS) {
|
5231 |
|
|
printk("Cyclades-8Zo/PCI found at 0x%lx ",
|
5232 |
|
|
(ulong)cy_pci_phys2);
|
5233 |
|
|
printk("but no channels are available.\n");
|
5234 |
|
|
printk("Change NR_PORTS in cyclades.c and recompile kernel.\n");
|
5235 |
|
|
return(i);
|
5236 |
|
|
}
|
5237 |
|
|
|
5238 |
|
|
/* fill the next cy_card structure available */
|
5239 |
|
|
for (j = 0 ; j < NR_CARDS ; j++) {
|
5240 |
|
|
if (cy_card[j].base_addr == 0) break;
|
5241 |
|
|
}
|
5242 |
|
|
if (j == NR_CARDS) { /* no more cy_cards available */
|
5243 |
|
|
printk("Cyclades-8Zo/PCI found at 0x%lx ",
|
5244 |
|
|
(ulong)cy_pci_phys2);
|
5245 |
|
|
printk("but no more cards can be used.\n");
|
5246 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
5247 |
|
|
return(i);
|
5248 |
|
|
}
|
5249 |
|
|
|
5250 |
|
|
#ifdef CONFIG_CYZ_INTR
|
5251 |
|
|
/* allocate IRQ only if board has an IRQ */
|
5252 |
|
|
if( (cy_pci_irq != 0) && (cy_pci_irq != 255) ) {
|
5253 |
|
|
if(request_irq(cy_pci_irq, cyz_interrupt,
|
5254 |
|
|
SA_SHIRQ, "Cyclades-Z", &cy_card[j]))
|
5255 |
|
|
{
|
5256 |
|
|
printk("Cyclom-8Zo/PCI found at 0x%lx ",
|
5257 |
|
|
(ulong) cy_pci_phys2);
|
5258 |
|
|
printk("but could not allocate IRQ%d.\n",
|
5259 |
|
|
cy_pci_irq);
|
5260 |
|
|
return(i);
|
5261 |
|
|
}
|
5262 |
|
|
}
|
5263 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5264 |
|
|
|
5265 |
|
|
|
5266 |
|
|
/* set cy_card */
|
5267 |
|
|
cy_card[j].base_phys = cy_pci_phys2;
|
5268 |
|
|
cy_card[j].ctl_phys = cy_pci_phys0;
|
5269 |
|
|
cy_card[j].base_addr = cy_pci_addr2;
|
5270 |
|
|
cy_card[j].ctl_addr = cy_pci_addr0;
|
5271 |
|
|
cy_card[j].irq = (int) cy_pci_irq;
|
5272 |
|
|
cy_card[j].bus_index = 1;
|
5273 |
|
|
cy_card[j].first_line = cy_next_channel;
|
5274 |
|
|
cy_card[j].num_chips = -1;
|
5275 |
|
|
cy_card[j].pdev = pdev;
|
5276 |
|
|
|
5277 |
|
|
/* print message */
|
5278 |
|
|
#ifdef CONFIG_CYZ_INTR
|
5279 |
|
|
/* don't report IRQ if board is no IRQ */
|
5280 |
|
|
if( (cy_pci_irq != 0) && (cy_pci_irq != 255) )
|
5281 |
|
|
printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
|
5282 |
|
|
j+1,(ulong)cy_pci_phys2,
|
5283 |
|
|
(ulong)(cy_pci_phys2 + CyPCI_Zwin - 1),
|
5284 |
|
|
(int)cy_pci_irq);
|
5285 |
|
|
else
|
5286 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5287 |
|
|
printk("Cyclades-8Zo/PCI #%d: 0x%lx-0x%lx, ",
|
5288 |
|
|
j+1,(ulong)cy_pci_phys2,
|
5289 |
|
|
(ulong)(cy_pci_phys2 + CyPCI_Zwin - 1));
|
5290 |
|
|
|
5291 |
|
|
printk("%d channels starting from port %d.\n",
|
5292 |
|
|
cy_pci_nchan,cy_next_channel);
|
5293 |
|
|
cy_next_channel += cy_pci_nchan;
|
5294 |
|
|
}
|
5295 |
|
|
}
|
5296 |
|
|
|
5297 |
|
|
for (; ZeIndex != 0 && i < NR_CARDS; i++) {
|
5298 |
|
|
cy_pci_phys0 = Ze_phys0[0];
|
5299 |
|
|
cy_pci_phys2 = Ze_phys2[0];
|
5300 |
|
|
cy_pci_addr0 = Ze_addr0[0];
|
5301 |
|
|
cy_pci_addr2 = Ze_addr2[0];
|
5302 |
|
|
cy_pci_irq = Ze_irq[0];
|
5303 |
|
|
pdev = Ze_pdev[0];
|
5304 |
|
|
for (j = 0 ; j < ZeIndex-1 ; j++) {
|
5305 |
|
|
Ze_phys0[j] = Ze_phys0[j+1];
|
5306 |
|
|
Ze_phys2[j] = Ze_phys2[j+1];
|
5307 |
|
|
Ze_addr0[j] = Ze_addr0[j+1];
|
5308 |
|
|
Ze_addr2[j] = Ze_addr2[j+1];
|
5309 |
|
|
Ze_irq[j] = Ze_irq[j+1];
|
5310 |
|
|
Ze_pdev[j] = Ze_pdev[j+1];
|
5311 |
|
|
}
|
5312 |
|
|
ZeIndex--;
|
5313 |
|
|
mailbox = (uclong)cy_readl(&((struct RUNTIME_9060 *)
|
5314 |
|
|
cy_pci_addr0)->mail_box_0);
|
5315 |
|
|
#ifdef CY_PCI_DEBUG
|
5316 |
|
|
printk("Cyclades-Z/PCI: relocate winaddr=0x%lx ctladdr=0x%lx\n",
|
5317 |
|
|
(ulong)cy_pci_addr2, (ulong)cy_pci_addr0);
|
5318 |
|
|
printk("Cyclades-Z/PCI: New Cyclades-Z board. FPGA not loaded\n");
|
5319 |
|
|
#endif
|
5320 |
|
|
PAUSE
|
5321 |
|
|
/* This must be the new Cyclades-Ze/PCI. */
|
5322 |
|
|
cy_pci_nchan = ZE_V1_NPORTS;
|
5323 |
|
|
|
5324 |
|
|
if((cy_next_channel+cy_pci_nchan) > NR_PORTS) {
|
5325 |
|
|
printk("Cyclades-Ze/PCI found at 0x%lx ",
|
5326 |
|
|
(ulong)cy_pci_phys2);
|
5327 |
|
|
printk("but no channels are available.\n");
|
5328 |
|
|
printk("Change NR_PORTS in cyclades.c and recompile kernel.\n");
|
5329 |
|
|
return(i);
|
5330 |
|
|
}
|
5331 |
|
|
|
5332 |
|
|
/* fill the next cy_card structure available */
|
5333 |
|
|
for (j = 0 ; j < NR_CARDS ; j++) {
|
5334 |
|
|
if (cy_card[j].base_addr == 0) break;
|
5335 |
|
|
}
|
5336 |
|
|
if (j == NR_CARDS) { /* no more cy_cards available */
|
5337 |
|
|
printk("Cyclades-Ze/PCI found at 0x%lx ",
|
5338 |
|
|
(ulong)cy_pci_phys2);
|
5339 |
|
|
printk("but no more cards can be used.\n");
|
5340 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
5341 |
|
|
return(i);
|
5342 |
|
|
}
|
5343 |
|
|
|
5344 |
|
|
#ifdef CONFIG_CYZ_INTR
|
5345 |
|
|
/* allocate IRQ only if board has an IRQ */
|
5346 |
|
|
if( (cy_pci_irq != 0) && (cy_pci_irq != 255) ) {
|
5347 |
|
|
if(request_irq(cy_pci_irq, cyz_interrupt,
|
5348 |
|
|
SA_SHIRQ, "Cyclades-Z", &cy_card[j]))
|
5349 |
|
|
{
|
5350 |
|
|
printk("Cyclom-Ze/PCI found at 0x%lx ",
|
5351 |
|
|
(ulong) cy_pci_phys2);
|
5352 |
|
|
printk("but could not allocate IRQ%d.\n",
|
5353 |
|
|
cy_pci_irq);
|
5354 |
|
|
return(i);
|
5355 |
|
|
}
|
5356 |
|
|
}
|
5357 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5358 |
|
|
|
5359 |
|
|
/* set cy_card */
|
5360 |
|
|
cy_card[j].base_phys = cy_pci_phys2;
|
5361 |
|
|
cy_card[j].ctl_phys = cy_pci_phys0;
|
5362 |
|
|
cy_card[j].base_addr = cy_pci_addr2;
|
5363 |
|
|
cy_card[j].ctl_addr = cy_pci_addr0;
|
5364 |
|
|
cy_card[j].irq = (int) cy_pci_irq;
|
5365 |
|
|
cy_card[j].bus_index = 1;
|
5366 |
|
|
cy_card[j].first_line = cy_next_channel;
|
5367 |
|
|
cy_card[j].num_chips = -1;
|
5368 |
|
|
cy_card[j].pdev = pdev;
|
5369 |
|
|
|
5370 |
|
|
/* print message */
|
5371 |
|
|
#ifdef CONFIG_CYZ_INTR
|
5372 |
|
|
/* don't report IRQ if board is no IRQ */
|
5373 |
|
|
if( (cy_pci_irq != 0) && (cy_pci_irq != 255) )
|
5374 |
|
|
printk("Cyclades-Ze/PCI #%d: 0x%lx-0x%lx, IRQ%d, ",
|
5375 |
|
|
j+1,(ulong)cy_pci_phys2,
|
5376 |
|
|
(ulong)(cy_pci_phys2 + CyPCI_Ze_win - 1),
|
5377 |
|
|
(int)cy_pci_irq);
|
5378 |
|
|
else
|
5379 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5380 |
|
|
printk("Cyclades-Ze/PCI #%d: 0x%lx-0x%lx, ",
|
5381 |
|
|
j+1,(ulong)cy_pci_phys2,
|
5382 |
|
|
(ulong)(cy_pci_phys2 + CyPCI_Ze_win - 1));
|
5383 |
|
|
|
5384 |
|
|
printk("%d channels starting from port %d.\n",
|
5385 |
|
|
cy_pci_nchan,cy_next_channel);
|
5386 |
|
|
cy_next_channel += cy_pci_nchan;
|
5387 |
|
|
}
|
5388 |
|
|
if (ZeIndex != 0) {
|
5389 |
|
|
printk("Cyclades-Ze/PCI found at 0x%x ",
|
5390 |
|
|
(unsigned int) Ze_phys2[0]);
|
5391 |
|
|
printk("but no more cards can be used.\n");
|
5392 |
|
|
printk("Change NR_CARDS in cyclades.c and recompile kernel.\n");
|
5393 |
|
|
}
|
5394 |
|
|
return(i);
|
5395 |
|
|
#else
|
5396 |
|
|
return(0);
|
5397 |
|
|
#endif /* ifdef CONFIG_PCI */
|
5398 |
|
|
} /* cy_detect_pci */
|
5399 |
|
|
|
5400 |
|
|
|
5401 |
|
|
/*
|
5402 |
|
|
* This routine prints out the appropriate serial driver version number
|
5403 |
|
|
* and identifies which options were configured into this driver.
|
5404 |
|
|
*/
|
5405 |
|
|
static inline void
|
5406 |
|
|
show_version(void)
|
5407 |
|
|
{
|
5408 |
|
|
char *rcsvers, *rcsdate, *tmp;
|
5409 |
|
|
rcsvers = strchr(rcsid, ' '); rcsvers++;
|
5410 |
|
|
tmp = strchr(rcsvers, ' '); *tmp++ = '\0';
|
5411 |
|
|
rcsdate = strchr(tmp, ' '); rcsdate++;
|
5412 |
|
|
tmp = strrchr(rcsdate, ' '); *tmp = '\0';
|
5413 |
|
|
printk("Cyclades driver %s %s\n",
|
5414 |
|
|
rcsvers, rcsdate);
|
5415 |
|
|
printk(" built %s %s\n",
|
5416 |
|
|
__DATE__, __TIME__);
|
5417 |
|
|
} /* show_version */
|
5418 |
|
|
|
5419 |
|
|
static int
|
5420 |
|
|
cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
|
5421 |
|
|
int *eof, void *data)
|
5422 |
|
|
{
|
5423 |
|
|
struct cyclades_port *info;
|
5424 |
|
|
int i;
|
5425 |
|
|
int len=0;
|
5426 |
|
|
off_t begin=0;
|
5427 |
|
|
off_t pos=0;
|
5428 |
|
|
int size;
|
5429 |
|
|
__u32 cur_jifs = jiffies;
|
5430 |
|
|
|
5431 |
|
|
size = sprintf(buf, "Dev TimeOpen BytesOut IdleOut BytesIn IdleIn Overruns Ldisc\n");
|
5432 |
|
|
|
5433 |
|
|
pos += size;
|
5434 |
|
|
len += size;
|
5435 |
|
|
|
5436 |
|
|
/* Output one line for each known port */
|
5437 |
|
|
for (i = 0; i < NR_PORTS && cy_port[i].line >= 0; i++) {
|
5438 |
|
|
info = &cy_port[i];
|
5439 |
|
|
|
5440 |
|
|
if (info->count)
|
5441 |
|
|
size = sprintf(buf+len,
|
5442 |
|
|
"%3d %8lu %10lu %8lu %10lu %8lu %9lu %6ld\n",
|
5443 |
|
|
info->line,
|
5444 |
|
|
JIFFIES_DIFF(info->idle_stats.in_use, cur_jifs) / HZ,
|
5445 |
|
|
info->idle_stats.xmit_bytes,
|
5446 |
|
|
JIFFIES_DIFF(info->idle_stats.xmit_idle, cur_jifs) / HZ,
|
5447 |
|
|
info->idle_stats.recv_bytes,
|
5448 |
|
|
JIFFIES_DIFF(info->idle_stats.recv_idle, cur_jifs) / HZ,
|
5449 |
|
|
info->idle_stats.overruns,
|
5450 |
|
|
(long) info->tty->ldisc.num);
|
5451 |
|
|
else
|
5452 |
|
|
size = sprintf(buf+len,
|
5453 |
|
|
"%3d %8lu %10lu %8lu %10lu %8lu %9lu %6ld\n",
|
5454 |
|
|
info->line, 0L, 0L, 0L, 0L, 0L, 0L, 0L);
|
5455 |
|
|
len += size;
|
5456 |
|
|
pos = begin + len;
|
5457 |
|
|
|
5458 |
|
|
if (pos < offset) {
|
5459 |
|
|
len = 0;
|
5460 |
|
|
begin = pos;
|
5461 |
|
|
}
|
5462 |
|
|
if (pos > offset + length)
|
5463 |
|
|
goto done;
|
5464 |
|
|
}
|
5465 |
|
|
*eof = 1;
|
5466 |
|
|
done:
|
5467 |
|
|
*start = buf + (offset - begin); /* Start of wanted data */
|
5468 |
|
|
len -= (offset - begin); /* Start slop */
|
5469 |
|
|
if (len > length)
|
5470 |
|
|
len = length; /* Ending slop */
|
5471 |
|
|
if (len < 0)
|
5472 |
|
|
len = 0;
|
5473 |
|
|
return len;
|
5474 |
|
|
}
|
5475 |
|
|
|
5476 |
|
|
/* The serial driver boot-time initialization code!
|
5477 |
|
|
Hardware I/O ports are mapped to character special devices on a
|
5478 |
|
|
first found, first allocated manner. That is, this code searches
|
5479 |
|
|
for Cyclom cards in the system. As each is found, it is probed
|
5480 |
|
|
to discover how many chips (and thus how many ports) are present.
|
5481 |
|
|
These ports are mapped to the tty ports 32 and upward in monotonic
|
5482 |
|
|
fashion. If an 8-port card is replaced with a 16-port card, the
|
5483 |
|
|
port mapping on a following card will shift.
|
5484 |
|
|
|
5485 |
|
|
This approach is different from what is used in the other serial
|
5486 |
|
|
device driver because the Cyclom is more properly a multiplexer,
|
5487 |
|
|
not just an aggregation of serial ports on one card.
|
5488 |
|
|
|
5489 |
|
|
If there are more cards with more ports than have been
|
5490 |
|
|
statically allocated above, a warning is printed and the
|
5491 |
|
|
extra ports are ignored.
|
5492 |
|
|
*/
|
5493 |
|
|
|
5494 |
|
|
int __init
|
5495 |
|
|
cy_init(void)
|
5496 |
|
|
{
|
5497 |
|
|
struct cyclades_port *info;
|
5498 |
|
|
struct cyclades_card *cinfo;
|
5499 |
|
|
int number_z_boards = 0;
|
5500 |
|
|
int board,port,i,index;
|
5501 |
|
|
unsigned long mailbox;
|
5502 |
|
|
unsigned short chip_number;
|
5503 |
|
|
int nports;
|
5504 |
|
|
|
5505 |
|
|
init_bh(CYCLADES_BH, do_cyclades_bh);
|
5506 |
|
|
|
5507 |
|
|
show_version();
|
5508 |
|
|
|
5509 |
|
|
/* Initialize the tty_driver structure */
|
5510 |
|
|
|
5511 |
|
|
memset(&cy_serial_driver, 0, sizeof(struct tty_driver));
|
5512 |
|
|
cy_serial_driver.magic = TTY_DRIVER_MAGIC;
|
5513 |
|
|
cy_serial_driver.driver_name = "cyclades";
|
5514 |
|
|
cy_serial_driver.name = "ttyC";
|
5515 |
|
|
cy_serial_driver.major = CYCLADES_MAJOR;
|
5516 |
|
|
cy_serial_driver.minor_start = 0;
|
5517 |
|
|
cy_serial_driver.num = NR_PORTS;
|
5518 |
|
|
cy_serial_driver.type = TTY_DRIVER_TYPE_SERIAL;
|
5519 |
|
|
cy_serial_driver.subtype = SERIAL_TYPE_NORMAL;
|
5520 |
|
|
cy_serial_driver.init_termios = tty_std_termios;
|
5521 |
|
|
cy_serial_driver.init_termios.c_cflag =
|
5522 |
|
|
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
|
5523 |
|
|
cy_serial_driver.flags = TTY_DRIVER_REAL_RAW;
|
5524 |
|
|
cy_serial_driver.refcount = &serial_refcount;
|
5525 |
|
|
cy_serial_driver.table = serial_table;
|
5526 |
|
|
cy_serial_driver.termios = serial_termios;
|
5527 |
|
|
cy_serial_driver.termios_locked = serial_termios_locked;
|
5528 |
|
|
|
5529 |
|
|
cy_serial_driver.open = cy_open;
|
5530 |
|
|
cy_serial_driver.close = cy_close;
|
5531 |
|
|
cy_serial_driver.write = cy_write;
|
5532 |
|
|
cy_serial_driver.put_char = cy_put_char;
|
5533 |
|
|
cy_serial_driver.flush_chars = cy_flush_chars;
|
5534 |
|
|
cy_serial_driver.write_room = cy_write_room;
|
5535 |
|
|
cy_serial_driver.chars_in_buffer = cy_chars_in_buffer;
|
5536 |
|
|
cy_serial_driver.flush_buffer = cy_flush_buffer;
|
5537 |
|
|
cy_serial_driver.ioctl = cy_ioctl;
|
5538 |
|
|
cy_serial_driver.throttle = cy_throttle;
|
5539 |
|
|
cy_serial_driver.unthrottle = cy_unthrottle;
|
5540 |
|
|
cy_serial_driver.set_termios = cy_set_termios;
|
5541 |
|
|
cy_serial_driver.stop = cy_stop;
|
5542 |
|
|
cy_serial_driver.start = cy_start;
|
5543 |
|
|
cy_serial_driver.hangup = cy_hangup;
|
5544 |
|
|
cy_serial_driver.break_ctl = cy_break;
|
5545 |
|
|
cy_serial_driver.wait_until_sent = cy_wait_until_sent;
|
5546 |
|
|
cy_serial_driver.read_proc = cyclades_get_proc_info;
|
5547 |
|
|
|
5548 |
|
|
/*
|
5549 |
|
|
* The callout device is just like normal device except for
|
5550 |
|
|
* major number and the subtype code.
|
5551 |
|
|
*/
|
5552 |
|
|
cy_callout_driver = cy_serial_driver;
|
5553 |
|
|
cy_callout_driver.name = "cub";
|
5554 |
|
|
cy_callout_driver.major = CYCLADESAUX_MAJOR;
|
5555 |
|
|
cy_callout_driver.subtype = SERIAL_TYPE_CALLOUT;
|
5556 |
|
|
cy_callout_driver.read_proc = 0;
|
5557 |
|
|
cy_callout_driver.proc_entry = 0;
|
5558 |
|
|
|
5559 |
|
|
|
5560 |
|
|
if (tty_register_driver(&cy_serial_driver))
|
5561 |
|
|
panic("Couldn't register Cyclades serial driver\n");
|
5562 |
|
|
if (tty_register_driver(&cy_callout_driver))
|
5563 |
|
|
panic("Couldn't register Cyclades callout driver\n");
|
5564 |
|
|
|
5565 |
|
|
for (i = 0; i < NR_CARDS; i++) {
|
5566 |
|
|
/* base_addr=0 indicates board not found */
|
5567 |
|
|
cy_card[i].base_addr = 0;
|
5568 |
|
|
}
|
5569 |
|
|
|
5570 |
|
|
/* the code below is responsible to find the boards. Each different
|
5571 |
|
|
type of board has its own detection routine. If a board is found,
|
5572 |
|
|
the next cy_card structure available is set by the detection
|
5573 |
|
|
routine. These functions are responsible for checking the
|
5574 |
|
|
availability of cy_card and cy_port data structures and updating
|
5575 |
|
|
the cy_next_channel. */
|
5576 |
|
|
|
5577 |
|
|
/* look for isa boards */
|
5578 |
|
|
cy_isa_nboard = cy_detect_isa();
|
5579 |
|
|
|
5580 |
|
|
/* look for pci boards */
|
5581 |
|
|
cy_pci_nboard = cy_detect_pci();
|
5582 |
|
|
|
5583 |
|
|
cy_nboard = cy_isa_nboard + cy_pci_nboard;
|
5584 |
|
|
|
5585 |
|
|
/* invalidate remaining cy_card structures */
|
5586 |
|
|
for (i = 0 ; i < NR_CARDS ; i++) {
|
5587 |
|
|
if (cy_card[i].base_addr == 0) {
|
5588 |
|
|
cy_card[i].first_line = -1;
|
5589 |
|
|
cy_card[i].ctl_addr = 0;
|
5590 |
|
|
cy_card[i].irq = 0;
|
5591 |
|
|
cy_card[i].bus_index = 0;
|
5592 |
|
|
cy_card[i].first_line = 0;
|
5593 |
|
|
cy_card[i].num_chips = 0;
|
5594 |
|
|
}
|
5595 |
|
|
}
|
5596 |
|
|
/* invalidate remaining cy_port structures */
|
5597 |
|
|
for (i = cy_next_channel ; i < NR_PORTS ; i++) {
|
5598 |
|
|
cy_port[i].line = -1;
|
5599 |
|
|
cy_port[i].magic = -1;
|
5600 |
|
|
}
|
5601 |
|
|
|
5602 |
|
|
/* initialize per-port data structures for each valid board found */
|
5603 |
|
|
for (board = 0 ; board < cy_nboard ; board++) {
|
5604 |
|
|
cinfo = &cy_card[board];
|
5605 |
|
|
if (cinfo->num_chips == -1) { /* Cyclades-Z */
|
5606 |
|
|
number_z_boards++;
|
5607 |
|
|
mailbox = cy_readl(&((struct RUNTIME_9060 *)
|
5608 |
|
|
cy_card[board].ctl_addr)->mail_box_0);
|
5609 |
|
|
nports = (mailbox == ZE_V1) ? ZE_V1_NPORTS : 8;
|
5610 |
|
|
cinfo->intr_enabled = 0;
|
5611 |
|
|
cinfo->nports = 0; /* Will be correctly set later, after
|
5612 |
|
|
Z FW is loaded */
|
5613 |
|
|
spin_lock_init(&cinfo->card_lock);
|
5614 |
|
|
for (port = cinfo->first_line ;
|
5615 |
|
|
port < cinfo->first_line + nports;
|
5616 |
|
|
port++)
|
5617 |
|
|
{
|
5618 |
|
|
info = &cy_port[port];
|
5619 |
|
|
info->magic = CYCLADES_MAGIC;
|
5620 |
|
|
info->type = PORT_STARTECH;
|
5621 |
|
|
info->card = board;
|
5622 |
|
|
info->line = port;
|
5623 |
|
|
info->chip_rev = 0;
|
5624 |
|
|
info->flags = STD_COM_FLAGS;
|
5625 |
|
|
info->tty = 0;
|
5626 |
|
|
if (mailbox == ZO_V1)
|
5627 |
|
|
info->xmit_fifo_size = CYZ_FIFO_SIZE;
|
5628 |
|
|
else
|
5629 |
|
|
info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
|
5630 |
|
|
info->cor1 = 0;
|
5631 |
|
|
info->cor2 = 0;
|
5632 |
|
|
info->cor3 = 0;
|
5633 |
|
|
info->cor4 = 0;
|
5634 |
|
|
info->cor5 = 0;
|
5635 |
|
|
info->tbpr = 0;
|
5636 |
|
|
info->tco = 0;
|
5637 |
|
|
info->rbpr = 0;
|
5638 |
|
|
info->rco = 0;
|
5639 |
|
|
info->custom_divisor = 0;
|
5640 |
|
|
info->close_delay = 5*HZ/10;
|
5641 |
|
|
info->closing_wait = CLOSING_WAIT_DELAY;
|
5642 |
|
|
info->icount.cts = info->icount.dsr =
|
5643 |
|
|
info->icount.rng = info->icount.dcd = 0;
|
5644 |
|
|
info->icount.rx = info->icount.tx = 0;
|
5645 |
|
|
info->icount.frame = info->icount.parity = 0;
|
5646 |
|
|
info->icount.overrun = info->icount.brk = 0;
|
5647 |
|
|
info->x_char = 0;
|
5648 |
|
|
info->event = 0;
|
5649 |
|
|
info->count = 0;
|
5650 |
|
|
info->blocked_open = 0;
|
5651 |
|
|
info->default_threshold = 0;
|
5652 |
|
|
info->default_timeout = 0;
|
5653 |
|
|
info->tqueue.routine = do_softint;
|
5654 |
|
|
info->tqueue.data = info;
|
5655 |
|
|
info->callout_termios =
|
5656 |
|
|
cy_callout_driver.init_termios;
|
5657 |
|
|
info->normal_termios =
|
5658 |
|
|
cy_serial_driver.init_termios;
|
5659 |
|
|
init_waitqueue_head(&info->open_wait);
|
5660 |
|
|
init_waitqueue_head(&info->close_wait);
|
5661 |
|
|
init_waitqueue_head(&info->shutdown_wait);
|
5662 |
|
|
init_waitqueue_head(&info->delta_msr_wait);
|
5663 |
|
|
/* info->session */
|
5664 |
|
|
/* info->pgrp */
|
5665 |
|
|
info->read_status_mask = 0;
|
5666 |
|
|
/* info->timeout */
|
5667 |
|
|
/* Bentson's vars */
|
5668 |
|
|
info->jiffies[0] = 0;
|
5669 |
|
|
info->jiffies[1] = 0;
|
5670 |
|
|
info->jiffies[2] = 0;
|
5671 |
|
|
info->rflush_count = 0;
|
5672 |
|
|
#ifdef CONFIG_CYZ_INTR
|
5673 |
|
|
cyz_rx_full_timer[port].function = NULL;
|
5674 |
|
|
#endif
|
5675 |
|
|
}
|
5676 |
|
|
continue;
|
5677 |
|
|
}else{ /* Cyclom-Y of some kind*/
|
5678 |
|
|
index = cinfo->bus_index;
|
5679 |
|
|
spin_lock_init(&cinfo->card_lock);
|
5680 |
|
|
cinfo->nports = CyPORTS_PER_CHIP * cinfo->num_chips;
|
5681 |
|
|
for (port = cinfo->first_line ;
|
5682 |
|
|
port < cinfo->first_line + cinfo->nports ;
|
5683 |
|
|
port++)
|
5684 |
|
|
{
|
5685 |
|
|
info = &cy_port[port];
|
5686 |
|
|
info->magic = CYCLADES_MAGIC;
|
5687 |
|
|
info->type = PORT_CIRRUS;
|
5688 |
|
|
info->card = board;
|
5689 |
|
|
info->line = port;
|
5690 |
|
|
info->flags = STD_COM_FLAGS;
|
5691 |
|
|
info->tty = 0;
|
5692 |
|
|
info->xmit_fifo_size = CyMAX_CHAR_FIFO;
|
5693 |
|
|
info->cor1 = CyPARITY_NONE|Cy_1_STOP|Cy_8_BITS;
|
5694 |
|
|
info->cor2 = CyETC;
|
5695 |
|
|
info->cor3 = 0x08; /* _very_ small rcv threshold */
|
5696 |
|
|
info->cor4 = 0;
|
5697 |
|
|
info->cor5 = 0;
|
5698 |
|
|
info->custom_divisor = 0;
|
5699 |
|
|
info->close_delay = 5*HZ/10;
|
5700 |
|
|
info->closing_wait = CLOSING_WAIT_DELAY;
|
5701 |
|
|
info->icount.cts = info->icount.dsr =
|
5702 |
|
|
info->icount.rng = info->icount.dcd = 0;
|
5703 |
|
|
info->icount.rx = info->icount.tx = 0;
|
5704 |
|
|
info->icount.frame = info->icount.parity = 0;
|
5705 |
|
|
info->icount.overrun = info->icount.brk = 0;
|
5706 |
|
|
chip_number = (port - cinfo->first_line) / 4;
|
5707 |
|
|
if ((info->chip_rev =
|
5708 |
|
|
cy_readb(cinfo->base_addr +
|
5709 |
|
|
(cy_chip_offset[chip_number]<<index) +
|
5710 |
|
|
(CyGFRCR<<index))) >= CD1400_REV_J) {
|
5711 |
|
|
/* It is a CD1400 rev. J or later */
|
5712 |
|
|
info->tbpr = baud_bpr_60[13]; /* Tx BPR */
|
5713 |
|
|
info->tco = baud_co_60[13]; /* Tx CO */
|
5714 |
|
|
info->rbpr = baud_bpr_60[13]; /* Rx BPR */
|
5715 |
|
|
info->rco = baud_co_60[13]; /* Rx CO */
|
5716 |
|
|
info->rflow = 0;
|
5717 |
|
|
info->rtsdtr_inv = 1;
|
5718 |
|
|
} else {
|
5719 |
|
|
info->tbpr = baud_bpr_25[13]; /* Tx BPR */
|
5720 |
|
|
info->tco = baud_co_25[13]; /* Tx CO */
|
5721 |
|
|
info->rbpr = baud_bpr_25[13]; /* Rx BPR */
|
5722 |
|
|
info->rco = baud_co_25[13]; /* Rx CO */
|
5723 |
|
|
info->rflow = 0;
|
5724 |
|
|
info->rtsdtr_inv = 0;
|
5725 |
|
|
}
|
5726 |
|
|
info->x_char = 0;
|
5727 |
|
|
info->event = 0;
|
5728 |
|
|
info->count = 0;
|
5729 |
|
|
info->blocked_open = 0;
|
5730 |
|
|
info->default_threshold = 0;
|
5731 |
|
|
info->default_timeout = 0;
|
5732 |
|
|
info->tqueue.routine = do_softint;
|
5733 |
|
|
info->tqueue.data = info;
|
5734 |
|
|
info->callout_termios =
|
5735 |
|
|
cy_callout_driver.init_termios;
|
5736 |
|
|
info->normal_termios =
|
5737 |
|
|
cy_serial_driver.init_termios;
|
5738 |
|
|
init_waitqueue_head(&info->open_wait);
|
5739 |
|
|
init_waitqueue_head(&info->close_wait);
|
5740 |
|
|
init_waitqueue_head(&info->shutdown_wait);
|
5741 |
|
|
init_waitqueue_head(&info->delta_msr_wait);
|
5742 |
|
|
/* info->session */
|
5743 |
|
|
/* info->pgrp */
|
5744 |
|
|
info->read_status_mask =
|
5745 |
|
|
CyTIMEOUT| CySPECHAR| CyBREAK
|
5746 |
|
|
| CyPARITY| CyFRAME| CyOVERRUN;
|
5747 |
|
|
/* info->timeout */
|
5748 |
|
|
}
|
5749 |
|
|
}
|
5750 |
|
|
}
|
5751 |
|
|
|
5752 |
|
|
#ifndef CONFIG_CYZ_INTR
|
5753 |
|
|
if (number_z_boards && !cyz_timeron){
|
5754 |
|
|
cyz_timeron++;
|
5755 |
|
|
cyz_timerlist.expires = jiffies + 1;
|
5756 |
|
|
add_timer(&cyz_timerlist);
|
5757 |
|
|
#ifdef CY_PCI_DEBUG
|
5758 |
|
|
printk("Cyclades-Z polling initialized\n");
|
5759 |
|
|
#endif
|
5760 |
|
|
}
|
5761 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5762 |
|
|
|
5763 |
|
|
return 0;
|
5764 |
|
|
|
5765 |
|
|
} /* cy_init */
|
5766 |
|
|
|
5767 |
|
|
#ifdef MODULE
|
5768 |
|
|
void
|
5769 |
|
|
cy_cleanup_module(void)
|
5770 |
|
|
{
|
5771 |
|
|
int i;
|
5772 |
|
|
int e1, e2;
|
5773 |
|
|
unsigned long flags;
|
5774 |
|
|
|
5775 |
|
|
#ifndef CONFIG_CYZ_INTR
|
5776 |
|
|
if (cyz_timeron){
|
5777 |
|
|
cyz_timeron = 0;
|
5778 |
|
|
del_timer(&cyz_timerlist);
|
5779 |
|
|
}
|
5780 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5781 |
|
|
|
5782 |
|
|
save_flags(flags); cli();
|
5783 |
|
|
remove_bh(CYCLADES_BH);
|
5784 |
|
|
|
5785 |
|
|
if ((e1 = tty_unregister_driver(&cy_serial_driver)))
|
5786 |
|
|
printk("cyc: failed to unregister Cyclades serial driver(%d)\n",
|
5787 |
|
|
e1);
|
5788 |
|
|
if ((e2 = tty_unregister_driver(&cy_callout_driver)))
|
5789 |
|
|
printk("cyc: failed to unregister Cyclades callout driver (%d)\n",
|
5790 |
|
|
e2);
|
5791 |
|
|
|
5792 |
|
|
restore_flags(flags);
|
5793 |
|
|
|
5794 |
|
|
for (i = 0; i < NR_CARDS; i++) {
|
5795 |
|
|
if (cy_card[i].base_addr != 0) {
|
5796 |
|
|
iounmap((void *)cy_card[i].base_addr);
|
5797 |
|
|
if (cy_card[i].ctl_addr != 0)
|
5798 |
|
|
iounmap((void *)cy_card[i].ctl_addr);
|
5799 |
|
|
if (cy_card[i].irq
|
5800 |
|
|
#ifndef CONFIG_CYZ_INTR
|
5801 |
|
|
&& cy_card[i].num_chips != -1 /* not a Z card */
|
5802 |
|
|
#endif /* CONFIG_CYZ_INTR */
|
5803 |
|
|
)
|
5804 |
|
|
free_irq(cy_card[i].irq, &cy_card[i]);
|
5805 |
|
|
if (cy_card[i].pdev)
|
5806 |
|
|
pci_release_regions(cy_card[i].pdev);
|
5807 |
|
|
}
|
5808 |
|
|
}
|
5809 |
|
|
if (tmp_buf) {
|
5810 |
|
|
free_page((unsigned long) tmp_buf);
|
5811 |
|
|
tmp_buf = NULL;
|
5812 |
|
|
}
|
5813 |
|
|
} /* cy_cleanup_module */
|
5814 |
|
|
|
5815 |
|
|
/* Module entry-points */
|
5816 |
|
|
module_init(cy_init);
|
5817 |
|
|
module_exit(cy_cleanup_module);
|
5818 |
|
|
|
5819 |
|
|
#else /* MODULE */
|
5820 |
|
|
/* called by linux/init/main.c to parse command line options */
|
5821 |
|
|
void
|
5822 |
|
|
cy_setup(char *str, int *ints)
|
5823 |
|
|
{
|
5824 |
|
|
#ifdef CONFIG_ISA
|
5825 |
|
|
int i, j;
|
5826 |
|
|
|
5827 |
|
|
for (i = 0 ; i < NR_ISA_ADDRS ; i++) {
|
5828 |
|
|
if (cy_isa_addresses[i] == 0) break;
|
5829 |
|
|
}
|
5830 |
|
|
for (j = 1; j <= ints[0]; j++){
|
5831 |
|
|
if ( i < NR_ISA_ADDRS ){
|
5832 |
|
|
cy_isa_addresses[i++] = (unsigned char *)(ints[j]);
|
5833 |
|
|
}
|
5834 |
|
|
}
|
5835 |
|
|
#endif /* CONFIG_ISA */
|
5836 |
|
|
} /* cy_setup */
|
5837 |
|
|
#endif /* MODULE */
|
5838 |
|
|
|
5839 |
|
|
MODULE_LICENSE("GPL");
|