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freebsd-skq/sys/i386/include/si.h
Peter Wemm a397086e61 Update to support SI/XIO PCI host cards (Z280 based) and the enhanced 
SXISA and SXPCI host cards (Transputer based).

PR: 4836, 5021, 5654
Submitted by:  Nick Sayer <nick@specialix.com>
1998-02-15 14:42:33 +00:00

507 lines
14 KiB
C
Raw Blame History

/*
* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
* 'C' definitions for Specialix serial multiplex driver.
*
* Copyright (C) 1990, 1992 Specialix International,
* Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
* Copyright (C) 1995, Peter Wemm <peter@haywire.dialix.com>
*
* Derived from: SunOS 4.x version
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notices, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notices, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Andy Rutter of
* Advanced Methods and Tools Ltd. based on original information
* from Specialix International.
* 4. Neither the name of Advanced Methods and Tools, nor Specialix
* International may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHORS BE LIABLE.
*
* $Id: si.h,v 1.9 1997/09/21 21:38:54 gibbs Exp $
*/
#include <sys/callout.h>
/*
* Macro to turn a device number into various parameters, and test for
* CONTROL device.
* max of 4 controllers with up to 32 ports per controller.
* minor device allocation is:
* adapter port
* 0 0-31
* 1 32-63
* 2 64-95
* 3 96-127
*/
#define SI_MAXPORTPERCARD 32
#define SI_MAXCONTROLLER 4
/*
* breakup of minor device number:
* lowest 5 bits: port number on card 0x1f
* next 2 bits: card number 0x60
* top bit: callout 0x80
* next 8 bits is the major number
* next 2 bits select initial/lock states
* next 1 bit selects the master control device
*/
#define SI_PORT_MASK 0x1f
#define SI_CARD_MASK 0x60
#define SI_TTY_MASK 0x7f
#define SI_CALLOUT_MASK 0x80
#define SI_INIT_STATE_MASK 0x10000
#define SI_LOCK_STATE_MASK 0x20000
#define SI_STATE_MASK 0x30000
#define SI_CONTROLDEV_MASK 0x40000
#define SI_SPECIAL_MASK 0x70000
#define SI_PORT(m) (m & SI_PORT_MASK)
#define SI_CARD(m) ((m & SI_CARD_MASK) >> 5)
#define SI_TTY(m) (m & SI_TTY_MASK)
#define IS_CALLOUT(m) (m & SI_CALLOUT_MASK)
#define IS_STATE(m) (m & SI_STATE_MASK)
#define IS_CONTROLDEV(m) (m & SI_CONTROLDEV_MASK)
#define IS_SPECIAL(m) (m & SI_SPECIAL_MASK)
#define MINOR2SC(m) (&si_softc[SI_CARD(m)])
#define MINOR2PP(m) (MINOR2SC((m))->sc_ports + SI_PORT((m)))
#define MINOR2TP(m) (MINOR2PP((m))->sp_tty)
#define TP2PP(tp) (MINOR2PP(SI_TTY(minor((tp)->t_dev))))
/* Adapter types */
#define SIEMPTY 0
#define SIHOST 1
#define SI2 2
#define SIHOST2 3
#define SIEISA 4
#define SIPCI 5
#define SIJETPCI 6
#define SIJETISA 7
/* Buffer parameters */
#define SI_BUFFERSIZE 256
typedef unsigned char BYTE; /* Type cast for unsigned 8 bit */
typedef unsigned short WORD; /* Type cast for unsigned 16 bit */
/*
* Hardware `registers', stored in the shared memory.
* These are related to the firmware running on the Z280.
*/
struct si_reg {
BYTE initstat;
BYTE memsize;
WORD int_count;
WORD revision;
BYTE rx_int_count;
BYTE spare;
WORD int_pending;
WORD int_counter;
BYTE int_scounter;
BYTE res[0x80 - 13];
};
/*
* Per module control structure, stored in shared memory.
*/
struct si_module {
WORD sm_next; /* Next module */
BYTE sm_type; /* Number of channels */
BYTE sm_number; /* Module number on cable */
BYTE sm_dsr; /* Private dsr copy */
BYTE sm_res[0x80 - 5]; /* Reserve space to 128 bytes */
};
/*
* The 'next' pointer & with 0x7fff + SI base addres give
* the address of the next module block if fitted. (else 0)
* Note that next points to the TX buffer so 0x60 must be
* subtracted to find the true base.
*
* Type is a bit field as follows: The bottom 5 bits are the
* number of channels on this module, the top 3 bits are
* as the module type thus:
*
* 000 2698 RS232 module (4 port or 8 port)
* 001 Reserved for 2698 RS422 module
* 010 Reserved for 8530 based sync module
* 011 Reserved for parallel printer module
* 100 Reserved for network module
* 101-111 Reserved for expansion.
*
* The number field is the cable position of the module.
*/
#define M232 0x00
#define M422 0x20 /* not supported */
#define MSYNC 0x40 /* this is the Telebit Netblazer module */
#define MCENT 0x60 /* not supported */
#define MNET 0x80 /* not supported */
#define MMASK 0x1F
/*
* Per channel(port) control structure, stored in shared memory.
*/
struct si_channel {
/*
* Generic stuff
*/
WORD next; /* Next Channel */
WORD addr_uart; /* Uart address */
WORD module; /* address of module struct */
BYTE type; /* Uart type */
BYTE fill;
/*
* Uart type specific stuff
*/
BYTE x_status; /* XON / XOFF status */
BYTE c_status; /* cooking status */
BYTE hi_rxipos; /* stuff into rx buff */
BYTE hi_rxopos; /* stuff out of rx buffer */
BYTE hi_txopos; /* Stuff into tx ptr */
BYTE hi_txipos; /* ditto out */
BYTE hi_stat; /* Command register */
BYTE dsr_bit; /* Magic bit for DSR */
BYTE txon; /* TX XON char */
BYTE txoff; /* ditto XOFF */
BYTE rxon; /* RX XON char */
BYTE rxoff; /* ditto XOFF */
BYTE hi_mr1; /* mode 1 image */
BYTE hi_mr2; /* mode 2 image */
BYTE hi_csr; /* clock register */
BYTE hi_op; /* Op control */
BYTE hi_ip; /* Input pins */
BYTE hi_state; /* status */
BYTE hi_prtcl; /* Protocol */
BYTE hi_txon; /* host copy tx xon stuff */
BYTE hi_txoff;
BYTE hi_rxon;
BYTE hi_rxoff;
BYTE close_prev; /* Was channel previously closed */
BYTE hi_break; /* host copy break process */
BYTE break_state; /* local copy ditto */
BYTE hi_mask; /* Mask for CS7 etc. */
BYTE mask_z280; /* Z280's copy */
BYTE res[0x60 - 36];
BYTE hi_txbuf[SI_BUFFERSIZE];
BYTE hi_rxbuf[SI_BUFFERSIZE];
BYTE res1[0xA0];
};
/*
* Register definitions
*/
/*
* Break input control register definitions
*/
#define BR_IGN 0x01 /* Ignore any received breaks */
#define BR_INT 0x02 /* Interrupt on received break */
#define BR_PARMRK 0x04 /* Enable parmrk parity error processing */
#define BR_PARIGN 0x08 /* Ignore chars with parity errors */
/*
* Protocol register provided by host for XON/XOFF and cooking
*/
#define SP_TANY 0x01 /* Tx XON any char */
#define SP_TXEN 0x02 /* Tx XON/XOFF enabled */
#define SP_CEN 0x04 /* Cooking enabled */
#define SP_RXEN 0x08 /* Rx XON/XOFF enabled */
#define SP_DCEN 0x20 /* DCD / DTR check */
#define SP_PAEN 0x80 /* Parity checking enabled */
/*
* HOST STATUS / COMMAND REGISTER
*/
#define IDLE_OPEN 0x00 /* Default mode, TX and RX polled
buffer updated etc */
#define LOPEN 0x02 /* Local open command (no modem ctl */
#define MOPEN 0x04 /* Open and monitor modem lines (blocks
for DCD */
#define MPEND 0x06 /* Wating for DCD */
#define CONFIG 0x08 /* Channel config has changed */
#define CLOSE 0x0A /* Close channel */
#define SBREAK 0x0C /* Start break */
#define EBREAK 0x0E /* End break */
#define IDLE_CLOSE 0x10 /* Closed channel */
#define IDLE_BREAK 0x12 /* In a break */
#define FCLOSE 0x14 /* Force a close */
#define RESUME 0x16 /* Clear a pending xoff */
#define WFLUSH 0x18 /* Flush output buffer */
#define RFLUSH 0x1A /* Flush input buffer */
/*
* Host status register
*/
#define ST_BREAK 0x01 /* Break received (clear with config) */
/*
* OUTPUT PORT REGISTER
*/
#define OP_CTS 0x01 /* Enable CTS */
#define OP_DSR 0x02 /* Enable DSR */
/*
* INPUT PORT REGISTER
*/
#define IP_DCD 0x04 /* DCD High */
#define IP_DTR 0x20 /* DTR High */
#define IP_RTS 0x02 /* RTS High */
#define IP_RI 0x40 /* RI High */
/*
* Mode register and uart specific stuff
*/
/*
* MODE REGISTER 1
*/
#define MR1_5_BITS 0x00
#define MR1_6_BITS 0x01
#define MR1_7_BITS 0x02
#define MR1_8_BITS 0x03
/*
* Parity
*/
#define MR1_ODD 0x04
#define MR1_EVEN 0x00
/*
* Parity mode
*/
#define MR1_WITH 0x00
#define MR1_FORCE 0x08
#define MR1_NONE 0x10
#define MR1_SPECIAL 0x18
/*
* Error mode
*/
#define MR1_CHAR 0x00
#define MR1_BLOCK 0x20
/*
* Request to send line automatic control
*/
#define MR1_CTSCONT 0x80
/*
* MODE REGISTER 2
*/
/*
* Number of stop bits
*/
#define MR2_1_STOP 0x07
#define MR2_2_STOP 0x0F
/*
* Clear to send automatic testing before character sent
*/
#define MR2_RTSCONT 0x10
/*
* Reset RTS automatically after sending character?
*/
#define MR2_CTSCONT 0x20
/*
* Channel mode
*/
#define MR2_NORMAL 0x00
#define MR2_AUTO 0x40
#define MR2_LOCAL 0x80
#define MR2_REMOTE 0xC0
/*
* CLOCK SELECT REGISTER - this and the code assumes ispeed == ospeed
*/
/*
* Clocking rates are in lower and upper nibbles.. R = upper, T = lower
*/
#define CLK75 0x0
#define CLK110 0x1 /* 110 on XIO!! */
#define CLK38400 0x2 /* out of sequence */
#define CLK150 0x3
#define CLK300 0x4
#define CLK600 0x5
#define CLK1200 0x6
#define CLK2000 0x7
#define CLK2400 0x8
#define CLK4800 0x9
#define CLK7200 0xa /* unchecked */
#define CLK9600 0xb
#define CLK19200 0xc
#define CLK57600 0xd
/*
* Per-port (channel) soft information structure, stored in the driver.
* This is visible via ioctl()'s.
*/
struct si_port {
volatile struct si_channel *sp_ccb;
struct tty *sp_tty;
int sp_pend; /* pending command */
int sp_last_hi_ip; /* cached DCD */
int sp_state;
int sp_active_out; /* callout is open */
int sp_dtr_wait; /* DTR holddown in hz */
int sp_delta_overflows;
u_int sp_wopeners; /* # procs waiting DCD */
u_char sp_hotchar; /* ldisc specific ASAP char */
/* Initial state. */
struct termios sp_iin;
struct termios sp_iout;
/* Lock state. */
struct termios sp_lin;
struct termios sp_lout;
struct callout_handle lstart_ch;/* For canceling our timeout */
#ifdef SI_DEBUG
int sp_debug; /* debug mask */
#endif
};
/* sp_state */
#define SS_CLOSED 0x0000
#define SS_OPEN 0x0001 /* Port is active */
/* 0x0002 -- */
/* 0x0004 -- */
/* 0x0008 -- */
/* 0x0010 -- */
/* 0x0020 -- */
/* 0x0040 -- */
/* 0x0080 -- */
#define SS_LSTART 0x0100 /* lstart timeout pending */
#define SS_INLSTART 0x0200 /* running an lstart induced t_oproc */
#define SS_CLOSING 0x0400 /* in the middle of a siclose() */
/* 0x0800 -- */
#define SS_WAITWRITE 0x1000
#define SS_BLOCKWRITE 0x2000
#define SS_DTR_OFF 0x4000 /* DTR held off */
/*
* Command post flags
*/
#define SI_NOWAIT 0x00 /* Don't wait for command */
#define SI_WAIT 0x01 /* Wait for complete */
/*
* Extensive debugging stuff - manipulated using siconfig(8)
*/
#define DBG_ENTRY 0x00000001
#define DBG_DRAIN 0x00000002
#define DBG_OPEN 0x00000004
#define DBG_CLOSE 0x00000008
#define DBG_READ 0x00000010
#define DBG_WRITE 0x00000020
#define DBG_PARAM 0x00000040
#define DBG_INTR 0x00000080
#define DBG_IOCTL 0x00000100
/* 0x00000200 */
#define DBG_SELECT 0x00000400
#define DBG_OPTIM 0x00000800
#define DBG_START 0x00001000
#define DBG_EXIT 0x00002000
#define DBG_FAIL 0x00004000
#define DBG_STOP 0x00008000
#define DBG_AUTOBOOT 0x00010000
#define DBG_MODEM 0x00020000
#define DBG_DOWNLOAD 0x00040000
#define DBG_LSTART 0x00080000
#define DBG_POLL 0x00100000
#define DBG_ALL 0xffffffff
/*
* SI ioctls
*/
/*
* struct for use by Specialix ioctls - used by siconfig(8)
*/
typedef struct {
unsigned char
sid_port:5, /* 0 - 31 ports per card */
sid_card:2, /* 0 - 3 cards */
sid_control:1; /* controlling device (all cards) */
} sidev_t;
struct si_tcsi {
sidev_t tc_dev;
union {
int x_int;
int x_dbglvl;
} tc_action;
#define tc_card tc_dev.sid_card
#define tc_port tc_dev.sid_port
#define tc_int tc_action.x_int
#define tc_dbglvl tc_action.x_dbglvl
};
struct si_pstat {
sidev_t tc_dev;
union {
struct si_port x_siport;
struct si_channel x_ccb;
struct tty x_tty;
} tc_action;
#define tc_siport tc_action.x_siport
#define tc_ccb tc_action.x_ccb
#define tc_tty tc_action.x_tty
};
#define IOCTL_MIN 96
#define TCSIDEBUG _IOW('S', 96, struct si_tcsi) /* Toggle debug */
#define TCSIRXIT _IOW('S', 97, struct si_tcsi) /* RX int throttle */
#define TCSIIT _IOW('S', 98, struct si_tcsi) /* TX int throttle */
/* 99 defunct */
/* 100 defunct */
/* 101 defunct */
/* 102 defunct */
/* 103 defunct */
/* 104 defunct */
#define TCSISTATE _IOWR('S', 105, struct si_tcsi) /* get current state of RTS
DCD and DTR pins */
/* 106 defunct */
#define TCSIPORTS _IOR('S', 107, int) /* Number of ports found */
#define TCSISDBG_LEVEL _IOW('S', 108, struct si_tcsi) /* equivalent of TCSIDEBUG which sets a
* particular debug level (DBG_??? bit
* mask), default is 0xffff */
#define TCSIGDBG_LEVEL _IOWR('S', 109, struct si_tcsi)
#define TCSIGRXIT _IOWR('S', 110, struct si_tcsi)
#define TCSIGIT _IOWR('S', 111, struct si_tcsi)
/* 112 defunct */
/* 113 defunct */
/* 114 defunct */
/* 115 defunct */
/* 116 defunct */
/* 117 defunct */
#define TCSISDBG_ALL _IOW('S', 118, int) /* set global debug level */
#define TCSIGDBG_ALL _IOR('S', 119, int) /* get global debug level */
/* 120 defunct */
/* 121 defunct */
/* 122 defunct */
/* 123 defunct */
#define TCSIMODULES _IOR('S', 124, int) /* Number of modules found */
/* Various stats and monitoring hooks per tty device */
#define TCSI_PORT _IOWR('S', 125, struct si_pstat) /* get si_port */
#define TCSI_CCB _IOWR('S', 126, struct si_pstat) /* get si_ccb */
#define TCSI_TTY _IOWR('S', 127, struct si_pstat) /* get tty struct */
#define IOCTL_MAX 127
#define IS_SI_IOCTL(cmd) ((u_int)((cmd)&0xff00) == ('S'<<8) && \
(u_int)((cmd)&0xff) >= IOCTL_MIN && \
(u_int)((cmd)&0xff) <= IOCTL_MAX)
#define CONTROLDEV "/dev/si_control"
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