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/*-
* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
* 'C' definitions for Specialix serial multiplex driver.
*
* Copyright (C) 1990, 1992, 1998 Specialix International,
* Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
* Copyright (C) 1995, Peter Wemm <peter@netplex.com.au>
*
* 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.
*
* $FreeBSD: release/9.1.0/sys/dev/si/si.h 179668 2008-06-09 08:43:27Z ed $
*/
#include <sys/callout.h>
/*
* We name devices with %r in make_dev() with a radix of 32.
*/
#define SI_MAXPORTPERCARD 32
/* Buffer parameters */
#define SI_BUFFERSIZE 256
typedef uint8_t BYTE; /* Type cast for unsigned 8 bit */
typedef uint16_t 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; /* isr_count on Jet */
BYTE main_count; /* spare on Z-280 */
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.
*/
#define TA4 0x00
#define TA8 0x08
#define TA4_ASIC 0x0A
#define TA8_ASIC 0x0B
#define MTA 0x28
#define SXDC 0x48
/*
* 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_delta_overflows;
struct callout_handle lstart_ch;/* For canceling our timeout */
int sp_debug; /* debug mask */
char sp_name[5];
};
/* sp_state */
/* 0x0001 -- */
/* 0x0002 -- */
/* 0x0004 -- */
/* 0x0008 -- */
/* 0x0010 -- */
/* 0x0020 -- */
/* 0x0040 -- */
/* 0x0080 -- */
#define SS_LSTART 0x0100 /* lstart timeout pending */
/* 0x0200 -- */
/* 0x0400 -- */
/* 0x0800 -- */
/*
* Command post flags
*/
#define SI_NOWAIT 0x00 /* Don't wait for command */
#define SI_WAIT 0x01 /* Wait for complete */
/*
* 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 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"