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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [pc386/] [include/] [bsp.h] - Blame information for rev 173

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1 30 unneback 
/*-------------------------------------------------------------------------+
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| bsp.h v1.1 - PC386 BSP - 1997/08/07
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+--------------------------------------------------------------------------+
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| This include file contains definitions related to the PC386 BSP.
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+--------------------------------------------------------------------------+
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| (C) Copyright 1997 -
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| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
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|
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| http://pandora.ist.utl.pt
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|
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| Instituto Superior Tecnico * Lisboa * PORTUGAL
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+--------------------------------------------------------------------------+
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| Modified by Eric Valette the 20/05/98 in order to add definitions used
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| to enhance video putchar capabilities.
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|
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| Copyright (C) 1998  valette@crf.canon.fr
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|
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| Canon Centre Recherche France.
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|
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+--------------------------------------------------------------------------+
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| Disclaimer:
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|
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| This file is provided "AS IS" without warranty of any kind, either
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| expressed or implied.
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+--------------------------------------------------------------------------+
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| This code is based on:
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|   bsp.h,v 1.5 1995/12/19 20:07:30 joel Exp - go32 BSP
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| With the following copyright notice:
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| **************************************************************************
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| *  COPYRIGHT (c) 1989-1999.
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| *  On-Line Applications Research Corporation (OAR).
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| *
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| *  The license and distribution terms for this file may be
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| *  found in found in the file LICENSE in this distribution or at
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| *  http://www.OARcorp.com/rtems/license.html.
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| **************************************************************************
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|
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|  $Id: bsp.h,v 1.2 2001-09-27 11:59:48 chris Exp $
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+--------------------------------------------------------------------------*/
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#ifndef __BSP_H_
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#define __BSP_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rtems.h>
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#include <iosupp.h>
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#include <console.h>
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#include <clockdrv.h>
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#include <libcpu/cpu.h>
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#include <bspIo.h>
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/*
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 *  confdefs.h overrides for this BSP:
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 *   - number of termios serial ports
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 *   - Interrupt stack space is not minimum if defined.
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 */
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#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 1
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#define CONFIGURE_INTERRUPT_STACK_MEMORY  (4 * 1024)
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/*
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 * Network driver configuration
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 */
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struct rtems_bsdnet_ifconfig;
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extern int rtems_wd_driver_attach (struct rtems_bsdnet_ifconfig *config);
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extern int rtems_dec21140_driver_attach (struct rtems_bsdnet_ifconfig *config);
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#if 0
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#define RTEMS_BSP_NETWORK_DRIVER_NAME "wd1"
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#define RTEMS_BSP_NETWORK_DRIVER_ATTACH       rtems_wd_driver_attach
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#endif
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#if 1
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#define RTEMS_BSP_NETWORK_DRIVER_NAME "dc1"
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#define RTEMS_BSP_NETWORK_DRIVER_ATTACH       rtems_dec21140_driver_attach
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#endif
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/*-------------------------------------------------------------------------+
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| Constants
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+--------------------------------------------------------------------------*/
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#define BSP_LIBIO_MAX_FDS 20             /* Number of libio files we want.    */
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/*-------------------------------------------------------------------------+
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| Video (console) related constants.
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+--------------------------------------------------------------------------*/
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#include <crt.h>
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/*-------------------------------------------------------------------------+
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| Constants relating to the 8254 (or 8253) programmable interval timers.
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+--------------------------------------------------------------------------*/
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#define IO_TIMER1      0x40
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                  /* Port address of the control port and timer channels */
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#define TIMER_CNTR0    (IO_TIMER1 + 0) /* timer 0 counter port           */
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#define TIMER_CNTR1    (IO_TIMER1 + 1) /* timer 1 counter port           */
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#define TIMER_CNTR2    (IO_TIMER1 + 2) /* timer 2 counter port           */
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#define TIMER_MODE     (IO_TIMER1 + 3) /* timer mode port                */
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#define TIMER_SEL0     0x00            /* select counter 0               */
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#define TIMER_SEL1     0x40            /* select counter 1               */
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#define TIMER_SEL2     0x80            /* select counter 2               */
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#define TIMER_INTTC    0x00            /* mode 0, intr on terminal cnt   */
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#define TIMER_ONESHOT  0x02            /* mode 1, one shot               */
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#define TIMER_RATEGEN  0x04            /* mode 2, rate generator         */
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#define TIMER_SQWAVE   0x06            /* mode 3, square wave            */
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#define TIMER_SWSTROBE 0x08            /* mode 4, s/w triggered strobe   */
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#define TIMER_HWSTROBE 0x0a            /* mode 5, h/w triggered strobe   */
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#define TIMER_LATCH    0x00            /* latch counter for reading      */
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#define TIMER_LSB      0x10            /* r/w counter LSB                */
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#define TIMER_MSB      0x20            /* r/w counter MSB                */
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#define TIMER_16BIT    0x30            /* r/w counter 16 bits, LSB first */
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#define TIMER_BCD      0x01            /* count in BCD                   */
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#define TIMER_TICK     1193182  /* The internal tick rate in ticks per second */
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/*-------------------------------------------------------------------------+
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| Define the time limits for RTEMS Test Suite test durations. Long test and
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| short test duration limits are provided. These values are in seconds and
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| need to be converted to ticks for the application.
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+--------------------------------------------------------------------------*/
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#define MAX_LONG_TEST_DURATION       300  /* 5 minutes = 300 seconds */
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#define MAX_SHORT_TEST_DURATION      3    /* 3 seconds */
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/*-------------------------------------------------------------------------+
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| Macros
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+--------------------------------------------------------------------------*/
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/*-------------------------------------------------------------------------+
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| Define the interrupt mechanism for Time Test 27.
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| NOTE: Use a software interrupt for the i386 family.
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+--------------------------------------------------------------------------*/
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#define MUST_WAIT_FOR_INTERRUPT 0
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#define Install_tm27_vector(handler) \
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{ \
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  rtems_isr_entry dummy; \
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  rtems_interrupt_catch(handler, 0x90, &dummy); \
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}
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#define Cause_tm27_intr() asm volatile("int $0x90" : :);
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#define Clear_tm27_intr()
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#define Lower_tm27_intr()
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/* does anyone need this? if so, report it so we can rename this macro */
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#if 0
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/*-------------------------------------------------------------------------+
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| Simple spin delay in microsecond units for device drivers.
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| This is very dependent on the clock speed of the target.
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+--------------------------------------------------------------------------*/
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#define delay(_microseconds) \
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{ \
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  rtems_unsigned32 _cnt = _microseconds; \
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  asm volatile ("0: nop; mov %0,%0; loop 0b" : "=c"(_cnt) : "0"(_cnt)); \
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}
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#endif
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/*-------------------------------------------------------------------------+
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| Convert microseconds to ticks and ticks to microseconds.
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+--------------------------------------------------------------------------*/
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#define US_TO_TICK(us) (((us)*105+44)/88)
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#define TICK_TO_US(tk) (((tk)*88+52)/105)
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/*-------------------------------------------------------------------------+
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| External Variables.
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+--------------------------------------------------------------------------*/
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#define IDT_SIZE 256
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#define GDT_SIZE 3
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extern interrupt_gate_descriptor Interrupt_descriptor_table[IDT_SIZE];
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extern segment_descriptors Global_descriptor_table   [GDT_SIZE];
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extern rtems_configuration_table BSP_Configuration;
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                                    /* User provided BSP configuration table. */
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extern rtems_unsigned32          rtemsFreeMemStart;
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  /* Address of start of free memory - should be used when creating new
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     partitions or regions and updated afterwards. */
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/*-------------------------------------------------------------------------+
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| Function Prototypes.
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+--------------------------------------------------------------------------*/
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void          _IBMPC_initVideo(void);    /* from 'outch.c'  */
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void          _IBMPC_outch    (char);    /* from 'outch.c'  */
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rtems_boolean _IBMPC_chrdy    (char *);  /* from 'inch.c'   */
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char          _IBMPC_inch     (void);    /* from 'inch.c'   */
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char          _IBMPC_inch_sleep (void);  /* from 'inch.c'   */
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void printk(char *fmt, ...);             /* from 'printk.c' */
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void rtemsReboot(void);                  /* from 'exit.c'   */
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void Wait_X_ms(unsigned int timeToWait); /* from 'timer.c'  */
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/* Definitions for BSPConsolePort */
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#define BSP_CONSOLE_PORT_CONSOLE (-1)
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#define BSP_CONSOLE_PORT_COM1    (BSP_UART_COM1)
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#define BSP_CONSOLE_PORT_COM2    (BSP_UART_COM2)
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/* GDB stub stuff */
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void i386_stub_glue_init(int uart);
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void i386_stub_glue_init_breakin(void);
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void set_debug_traps(void);
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void breakpoint(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BSP_H_ */
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/* end of include file */
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