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/* 68332serial.h: Definitions for the mc68332 serial driver.

 *

 * Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,

 *                     D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,

 *                     The Silver Hammer Group, Ltd.

 *

 * Based on 68328serial.h

 *

 */

#ifndef _MC683XX_SERIAL_H

#define _MC683XX_SERIAL_H

#include <linux/config.h>

struct serial_struct {

        int     type;

        int     line;

        int     port;

        int     irq;

        int     flags;

        int     xmit_fifo_size;

        int     custom_divisor;

        int     baud_base;

        unsigned short  close_delay;

        char    reserved_char[2];

        int     hub6;  /* FIXME: We don't have AT&T Hub6 boards! */

        unsigned short  closing_wait; /* time to wait before closing */

        unsigned short  closing_wait2; /* no longer used... */

        int     reserved[4];

};

/*

 * For the close wait times, 0 means wait forever for serial port to

 * flush its output.  65535 means don't wait at all.

 */

#define S_CLOSING_WAIT_INF      0

#define S_CLOSING_WAIT_NONE     65535

/*

 * Definitions for S_struct (and serial_struct) flags field

 */

#define S_HUP_NOTIFY 0x0001 /* Notify getty on hangups and closes 

                                   on the callout port */

#define S_FOURPORT  0x0002      /* Set OU1, OUT2 per AST Fourport settings */

#define S_SAK   0x0004  /* Secure Attention Key (Orange book) */

#define S_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */

#define S_SPD_MASK      0x0030

#define S_SPD_HI        0x0010  /* Use 56000 instead of 38400 bps */

#define S_SPD_VHI       0x0020  /* Use 115200 instead of 38400 bps */

#define S_SPD_CUST      0x0030  /* Use user-specified divisor */

#define S_SKIP_TEST     0x0040 /* Skip UART test during autoconfiguration */

#define S_AUTO_IRQ  0x0080 /* Do automatic IRQ during autoconfiguration */

#define S_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */

#define S_PGRP_LOCKOUT    0x0200 /* Lock out cua opens based on pgrp */

#define S_CALLOUT_NOHUP   0x0400 /* Don't do hangups for cua device */

#define S_FLAGS 0x0FFF  /* Possible legal S flags */

#define S_USR_MASK 0x0430       /* Legal flags that non-privileged

                                 * users can set or reset */

/* Internal flags used only by kernel/chr_drv/serial.c */

#define S_INITIALIZED   0x80000000 /* Serial port was initialized */

#define S_CALLOUT_ACTIVE        0x40000000 /* Call out device is active */

#define S_NORMAL_ACTIVE 0x20000000 /* Normal device is active */

#define S_BOOT_AUTOCONF 0x10000000 /* Autoconfigure port on bootup */

#define S_CLOSING               0x08000000 /* Serial port is closing */

#define S_CTS_FLOW              0x04000000 /* Do CTS flow control */

#define S_CHECK_CD              0x02000000 /* i.e., CLOCAL */

/* Software state per channel */

#ifdef __KERNEL__

/*

 * This is our internal structure for each serial port's state.

 *

 * Many fields are paralleled by the structure used by the serial_struct

 * structure.

 *

 * For definitions of the flags field, see tty.h

 */

struct m68k_serial {

        char soft_carrier;  /* Use soft carrier on this channel */

        char break_abort;   /* Is serial console in, so process brk/abrt */

#if 0

        char cons_keyb;     /* Channel runs the keyboard */

        char cons_mouse;    /* Channel runs the mouse */

        char kgdb_channel;  /* Kgdb is running on this channel */

#endif

        char is_cons;       /* Is this our console. */

        /* We need to know the current clock divisor

         * to read the bps rate the chip has currently

         * loaded.

         */

        unsigned char clk_divisor;  /* May be 1, 16, 32, or 64 */

        int baud;

        int                     magic;

        int                     baud_base;

        int                     port;

        int                     irq;

        int                     flags;          /* defined in tty.h */

        int                     type;           /* UART type */

        struct tty_struct       *tty;

        int                     read_status_mask;

        int                     ignore_status_mask;

        int                     timeout;

        int                     xmit_fifo_size;

        int                     custom_divisor;

        int                     x_char; /* xon/xoff character */

        int                     close_delay;

        unsigned short          closing_wait;

        unsigned short          closing_wait2;

        unsigned long           event;

        unsigned long           last_active;

        int                     line;

        int                     count;      /* # of fd on device */

        int                     blocked_open; /* # of blocked opens */

        long                    session; /* Session of opening process */

        long                    pgrp; /* pgrp of opening process */

        unsigned char           *xmit_buf;

        int                     xmit_head;

        int                     xmit_tail;

        int                     xmit_cnt;

        struct tq_struct        tqueue;

        struct tq_struct        tqueue_hangup;

        struct termios          normal_termios;

        struct termios          callout_termios;

        struct wait_queue       *open_wait;

        struct wait_queue       *close_wait;

};

#define SERIAL_MAGIC 0x5301

/*

 * The size of the serial xmit buffer is 1 page, or 4096 bytes

 */

#define SERIAL_XMIT_SIZE 4096

/*

 * Events are used to schedule things to happen at timer-interrupt

 * time, instead of at rs interrupt time.

 */

#define RS_EVENT_WRITE_WAKEUP   0

#endif /* __KERNEL__ */

#ifdef CONFIG_M68332

#define BASE 0xfffff900

#define VSP(X) (*(volatile unsigned short *)(X))

#define VCP(X) (*(volatile unsigned char *)(X))

#define SYNCR VSP(0xfffa04)

#define QILR VSP(0xfffc04)

#define QSMCR VSP(0xfffc00)

#define SCCR0 VSP(0xfffc08)

#define SCCR1 VSP(0xfffc0a)

#define SCCR1_LOOPS (1<<14)

#define SCCR1_WOMS (1<<13)

#define SCCR1_ILT (1<<12)

#define SCCR1_PT (1<<11)

#define SCCR1_PE (1<<10)

#define SCCR1_M (1<<9)

#define SCCR1_WAKE (1<<8)

#define SCCR1_TIE (1<<7)

#define SCCR1_TCIE (1<<6)

#define SCCR1_RIE (1<<5)

#define SCCR1_ILIE (1<<4)

#define SCCR1_TE (1<<3)

#define SCCR1_RE (1<<2)

#define SCCR1_RWU (1<<1)

#define SCCR1_SBK (1<<0)

#define SCSR  VSP(0xfffc0c)

#define SCSR_TDRE (1<<8)

#define SCSR_TC  (1<<7)

#define SCSR_RDRF (1<<6)

#define SCSR_RAF (1<<5)

#define SCSR_IDLE (1<<4)

#define SCSR_OR (1<<3)

#define SCSR_NF (1<<2)

#define SCSR_FE (1<<1)

#define SCSR_PF (1<<0)

#define SCDR  VSP(0xfffC0e)

#define FREF 32768

#endif

#endif /* !(_MC683XX_SERIAL_H) */