2ae1fdab5a
In the FreeBSD base system, there are only two utilities that use struct tty, namely pstat and sicontrol. The sicontrol utility calls the TCSI_TTY ioctl(), which copies struct tty back to userspace. sicontrol should not have this functionality. The same data is already provided by pstat. If we really want to be able to export these numbers through a file descriptor to userspace, we can export struct xtty, which should provide a better abstraction. The ttystat option was only used as a debugging aid. This makes sicontrol compile in the mpsafetty branch. Reviewed by: peter Approved by: philip (mentor)
396 lines
11 KiB
C
396 lines
11 KiB
C
/*-
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* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
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* 'C' definitions for Specialix serial multiplex driver.
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*
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* Copyright (C) 1990, 1992, 1998 Specialix International,
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* Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
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* Copyright (C) 1995, Peter Wemm <peter@netplex.com.au>
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*
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* Derived from: SunOS 4.x version
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notices, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notices, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Andy Rutter of
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* Advanced Methods and Tools Ltd. based on original information
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* from Specialix International.
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* 4. Neither the name of Advanced Methods and Tools, nor Specialix
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* International may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHORS BE LIABLE.
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*
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* $FreeBSD$
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*/
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#include <sys/callout.h>
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/*
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* We name devices with %r in make_dev() with a radix of 32.
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*/
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#define SI_MAXPORTPERCARD 32
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/* Buffer parameters */
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#define SI_BUFFERSIZE 256
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typedef uint8_t BYTE; /* Type cast for unsigned 8 bit */
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typedef uint16_t WORD; /* Type cast for unsigned 16 bit */
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/*
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* Hardware `registers', stored in the shared memory.
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* These are related to the firmware running on the Z280.
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*/
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struct si_reg {
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BYTE initstat;
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BYTE memsize;
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WORD int_count;
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WORD revision;
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BYTE rx_int_count; /* isr_count on Jet */
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BYTE main_count; /* spare on Z-280 */
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WORD int_pending;
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WORD int_counter;
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BYTE int_scounter;
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BYTE res[0x80 - 13];
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};
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/*
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* Per module control structure, stored in shared memory.
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*/
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struct si_module {
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WORD sm_next; /* Next module */
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BYTE sm_type; /* Number of channels */
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BYTE sm_number; /* Module number on cable */
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BYTE sm_dsr; /* Private dsr copy */
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BYTE sm_res[0x80 - 5]; /* Reserve space to 128 bytes */
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};
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/*
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* The 'next' pointer & with 0x7fff + SI base addres give
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* the address of the next module block if fitted. (else 0)
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* Note that next points to the TX buffer so 0x60 must be
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* subtracted to find the true base.
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*/
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#define TA4 0x00
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#define TA8 0x08
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#define TA4_ASIC 0x0A
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#define TA8_ASIC 0x0B
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#define MTA 0x28
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#define SXDC 0x48
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/*
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* Per channel(port) control structure, stored in shared memory.
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*/
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struct si_channel {
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/*
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* Generic stuff
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*/
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WORD next; /* Next Channel */
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WORD addr_uart; /* Uart address */
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WORD module; /* address of module struct */
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BYTE type; /* Uart type */
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BYTE fill;
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/*
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* Uart type specific stuff
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*/
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BYTE x_status; /* XON / XOFF status */
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BYTE c_status; /* cooking status */
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BYTE hi_rxipos; /* stuff into rx buff */
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BYTE hi_rxopos; /* stuff out of rx buffer */
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BYTE hi_txopos; /* Stuff into tx ptr */
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BYTE hi_txipos; /* ditto out */
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BYTE hi_stat; /* Command register */
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BYTE dsr_bit; /* Magic bit for DSR */
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BYTE txon; /* TX XON char */
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BYTE txoff; /* ditto XOFF */
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BYTE rxon; /* RX XON char */
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BYTE rxoff; /* ditto XOFF */
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BYTE hi_mr1; /* mode 1 image */
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BYTE hi_mr2; /* mode 2 image */
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BYTE hi_csr; /* clock register */
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BYTE hi_op; /* Op control */
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BYTE hi_ip; /* Input pins */
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BYTE hi_state; /* status */
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BYTE hi_prtcl; /* Protocol */
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BYTE hi_txon; /* host copy tx xon stuff */
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BYTE hi_txoff;
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BYTE hi_rxon;
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BYTE hi_rxoff;
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BYTE close_prev; /* Was channel previously closed */
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BYTE hi_break; /* host copy break process */
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BYTE break_state; /* local copy ditto */
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BYTE hi_mask; /* Mask for CS7 etc. */
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BYTE mask_z280; /* Z280's copy */
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BYTE res[0x60 - 36];
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BYTE hi_txbuf[SI_BUFFERSIZE];
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BYTE hi_rxbuf[SI_BUFFERSIZE];
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BYTE res1[0xA0];
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};
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/*
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* Register definitions
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*/
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/*
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* Break input control register definitions
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*/
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#define BR_IGN 0x01 /* Ignore any received breaks */
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#define BR_INT 0x02 /* Interrupt on received break */
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#define BR_PARMRK 0x04 /* Enable parmrk parity error processing */
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#define BR_PARIGN 0x08 /* Ignore chars with parity errors */
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/*
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* Protocol register provided by host for XON/XOFF and cooking
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*/
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#define SP_TANY 0x01 /* Tx XON any char */
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#define SP_TXEN 0x02 /* Tx XON/XOFF enabled */
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#define SP_CEN 0x04 /* Cooking enabled */
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#define SP_RXEN 0x08 /* Rx XON/XOFF enabled */
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#define SP_DCEN 0x20 /* DCD / DTR check */
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#define SP_PAEN 0x80 /* Parity checking enabled */
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/*
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* HOST STATUS / COMMAND REGISTER
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*/
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#define IDLE_OPEN 0x00 /* Default mode, TX and RX polled
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buffer updated etc */
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#define LOPEN 0x02 /* Local open command (no modem ctl */
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#define MOPEN 0x04 /* Open and monitor modem lines (blocks
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for DCD */
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#define MPEND 0x06 /* Wating for DCD */
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#define CONFIG 0x08 /* Channel config has changed */
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#define CLOSE 0x0A /* Close channel */
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#define SBREAK 0x0C /* Start break */
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#define EBREAK 0x0E /* End break */
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#define IDLE_CLOSE 0x10 /* Closed channel */
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#define IDLE_BREAK 0x12 /* In a break */
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#define FCLOSE 0x14 /* Force a close */
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#define RESUME 0x16 /* Clear a pending xoff */
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#define WFLUSH 0x18 /* Flush output buffer */
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#define RFLUSH 0x1A /* Flush input buffer */
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/*
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* Host status register
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*/
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#define ST_BREAK 0x01 /* Break received (clear with config) */
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/*
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* OUTPUT PORT REGISTER
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*/
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#define OP_CTS 0x01 /* Enable CTS */
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#define OP_DSR 0x02 /* Enable DSR */
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/*
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* INPUT PORT REGISTER
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*/
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#define IP_DCD 0x04 /* DCD High */
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#define IP_DTR 0x20 /* DTR High */
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#define IP_RTS 0x02 /* RTS High */
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#define IP_RI 0x40 /* RI High */
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/*
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* Mode register and uart specific stuff
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*/
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/*
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* MODE REGISTER 1
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*/
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#define MR1_5_BITS 0x00
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#define MR1_6_BITS 0x01
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#define MR1_7_BITS 0x02
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#define MR1_8_BITS 0x03
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/*
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* Parity
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*/
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#define MR1_ODD 0x04
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#define MR1_EVEN 0x00
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/*
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* Parity mode
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*/
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#define MR1_WITH 0x00
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#define MR1_FORCE 0x08
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#define MR1_NONE 0x10
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#define MR1_SPECIAL 0x18
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/*
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* Error mode
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*/
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#define MR1_CHAR 0x00
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#define MR1_BLOCK 0x20
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/*
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* Request to send line automatic control
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*/
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#define MR1_CTSCONT 0x80
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/*
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* MODE REGISTER 2
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*/
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/*
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* Number of stop bits
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*/
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#define MR2_1_STOP 0x07
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#define MR2_2_STOP 0x0F
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/*
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* Clear to send automatic testing before character sent
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*/
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#define MR2_RTSCONT 0x10
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/*
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* Reset RTS automatically after sending character?
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*/
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#define MR2_CTSCONT 0x20
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/*
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* Channel mode
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*/
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#define MR2_NORMAL 0x00
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#define MR2_AUTO 0x40
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#define MR2_LOCAL 0x80
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#define MR2_REMOTE 0xC0
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/*
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* CLOCK SELECT REGISTER - this and the code assumes ispeed == ospeed
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*/
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/*
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* Clocking rates are in lower and upper nibbles.. R = upper, T = lower
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*/
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#define CLK75 0x0
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#define CLK110 0x1 /* 110 on XIO!! */
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#define CLK38400 0x2 /* out of sequence */
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#define CLK150 0x3
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#define CLK300 0x4
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#define CLK600 0x5
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#define CLK1200 0x6
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#define CLK2000 0x7
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#define CLK2400 0x8
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#define CLK4800 0x9
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#define CLK7200 0xa /* unchecked */
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#define CLK9600 0xb
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#define CLK19200 0xc
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#define CLK57600 0xd
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/*
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* Per-port (channel) soft information structure, stored in the driver.
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* This is visible via ioctl()'s.
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*/
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struct si_port {
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volatile struct si_channel *sp_ccb;
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struct tty *sp_tty;
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int sp_pend; /* pending command */
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int sp_last_hi_ip; /* cached DCD */
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int sp_state;
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int sp_delta_overflows;
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struct callout_handle lstart_ch;/* For canceling our timeout */
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int sp_debug; /* debug mask */
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char sp_name[5];
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};
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/* sp_state */
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/* 0x0001 -- */
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/* 0x0002 -- */
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/* 0x0004 -- */
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/* 0x0008 -- */
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/* 0x0010 -- */
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/* 0x0020 -- */
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/* 0x0040 -- */
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/* 0x0080 -- */
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#define SS_LSTART 0x0100 /* lstart timeout pending */
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/* 0x0200 -- */
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/* 0x0400 -- */
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/* 0x0800 -- */
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/*
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* Command post flags
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*/
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#define SI_NOWAIT 0x00 /* Don't wait for command */
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#define SI_WAIT 0x01 /* Wait for complete */
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/*
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* SI ioctls
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*/
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/*
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* struct for use by Specialix ioctls - used by siconfig(8)
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*/
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typedef struct {
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unsigned char
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sid_port:5, /* 0 - 31 ports per card */
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sid_card:2, /* 0 - 3 cards */
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sid_control:1; /* controlling device (all cards) */
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} sidev_t;
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struct si_tcsi {
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sidev_t tc_dev;
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union {
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int x_int;
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int x_dbglvl;
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} tc_action;
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#define tc_card tc_dev.sid_card
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#define tc_port tc_dev.sid_port
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#define tc_int tc_action.x_int
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#define tc_dbglvl tc_action.x_dbglvl
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};
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struct si_pstat {
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sidev_t tc_dev;
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union {
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struct si_port x_siport;
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struct si_channel x_ccb;
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struct tty x_tty;
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} tc_action;
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#define tc_siport tc_action.x_siport
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#define tc_ccb tc_action.x_ccb
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#define tc_tty tc_action.x_tty
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};
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#define IOCTL_MIN 96
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#define TCSIDEBUG _IOW('S', 96, struct si_tcsi) /* Toggle debug */
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#define TCSIRXIT _IOW('S', 97, struct si_tcsi) /* RX int throttle */
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#define TCSIIT _IOW('S', 98, struct si_tcsi) /* TX int throttle */
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/* 99 defunct */
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/* 100 defunct */
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/* 101 defunct */
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/* 102 defunct */
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/* 103 defunct */
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/* 104 defunct */
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#define TCSISTATE _IOWR('S', 105, struct si_tcsi) /* get current state of RTS
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DCD and DTR pins */
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/* 106 defunct */
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#define TCSIPORTS _IOR('S', 107, int) /* Number of ports found */
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#define TCSISDBG_LEVEL _IOW('S', 108, struct si_tcsi) /* equivalent of TCSIDEBUG which sets a
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* particular debug level (DBG_??? bit
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* mask), default is 0xffff */
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#define TCSIGDBG_LEVEL _IOWR('S', 109, struct si_tcsi)
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#define TCSIGRXIT _IOWR('S', 110, struct si_tcsi)
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#define TCSIGIT _IOWR('S', 111, struct si_tcsi)
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/* 112 defunct */
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/* 113 defunct */
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/* 114 defunct */
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/* 115 defunct */
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/* 116 defunct */
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/* 117 defunct */
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#define TCSISDBG_ALL _IOW('S', 118, int) /* set global debug level */
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#define TCSIGDBG_ALL _IOR('S', 119, int) /* get global debug level */
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/* 120 defunct */
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/* 121 defunct */
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/* 122 defunct */
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/* 123 defunct */
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#define TCSIMODULES _IOR('S', 124, int) /* Number of modules found */
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/* Various stats and monitoring hooks per tty device */
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#define TCSI_PORT _IOWR('S', 125, struct si_pstat) /* get si_port */
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#define TCSI_CCB _IOWR('S', 126, struct si_pstat) /* get si_ccb */
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#define IOCTL_MAX 127
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#define IS_SI_IOCTL(cmd) ((u_int)((cmd)&0xff00) == ('S'<<8) && \
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(u_int)((cmd)&0xff) >= IOCTL_MIN && \
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(u_int)((cmd)&0xff) <= IOCTL_MAX)
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#define CONTROLDEV "/dev/si_control"
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