557 lines
16 KiB
C
557 lines
16 KiB
C
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/*
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* Device driver for Specialix range (SLXOS) 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 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@haywire.dialix.com>
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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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* $Id$
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*/
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/*
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* Macro to turn a device number into various parameters, and test for
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* CONTROL device.
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* max of 4 controllers with up to 32 ports per controller.
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* minor device allocation is:
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* adapter port
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* 0 0-31
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* 1 32-63
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* 2 64-95
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* 3 96-127
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*/
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#define SI_MAXPORTPERCARD 32
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#define SI_MAXCONTROLLER 4
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/*
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* breakup of minor device number:
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* lowest 5 bits: port number on card 0x1f
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* next 2 bits: card number 0x60
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* top bit: callout 0x80
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* next 8 bits is the major number
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* next 2 bits select initial/lock states
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* next 1 bit selects the master control device
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*/
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#define SI_PORT_MASK 0x1f
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#define SI_CARD_MASK 0x60
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#define SI_TTY_MASK 0x7f
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#define SI_CALLOUT_MASK 0x80
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#define SI_INIT_STATE_MASK 0x10000
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#define SI_LOCK_STATE_MASK 0x20000
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#define SI_STATE_MASK 0x30000
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#define SI_CONTROLDEV_MASK 0x40000
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#define SI_SPECIAL_MASK 0x70000
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#define SI_PORT(m) (m & SI_PORT_MASK)
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#define SI_CARD(m) ((m & SI_CARD_MASK) >> 5)
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#define SI_TTY(m) (m & SI_TTY_MASK)
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#define IS_CALLOUT(m) (m & SI_CALLOUT_MASK)
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#define IS_STATE(m) (m & SI_STATE_MASK)
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#define IS_CONTROLDEV(m) (m & SI_CONTROLDEV_MASK)
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#define IS_SPECIAL(m) (m & SI_SPECIAL_MASK)
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#define MINOR2SC(m) (&si_softc[SI_CARD(m)])
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#define MINOR2PP(m) (MINOR2SC((m))->sc_ports + SI_PORT((m)))
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#define MINOR2TP(m) (MINOR2PP((m))->sp_tty)
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#define TP2PP(tp) (MINOR2PP(SI_TTY(minor((tp)->t_dev))))
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/* Adapter types */
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#define SIEMPTY 0
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#define SIHOST 1
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#define SI2 2
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#define SIHOST2 3
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#define SIEISA 4
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/* Buffer parameters */
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#define SLXOS_BUFFERSIZE 256
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#define MIN_TXWATER 20
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#define MAX_TXWATER (SLXOS_BUFFERSIZE-20)
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typedef unsigned char BYTE; /* Type cast for unsigned 8 bit */
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typedef unsigned short 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;
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BYTE spare;
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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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* Type is a bit field as follows: The bottom 5 bits are the
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* number of channels on this module, the top 3 bits are
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* as the module type thus:
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*
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* 000 2698 RS232 module (4 port or 8 port)
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* 001 Reserved for 2698 RS422 module
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* 010 Reserved for 8530 based sync module
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* 011 Reserved for parallel printer module
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* 100 Reserved for network module
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* 101-111 Reserved for expansion.
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*
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* The number field is the cable position of the module.
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*/
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#define M232 0x00
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#define M422 0x20 /* not supported */
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#define MSYNC 0x40 /* this is the Telebit Netblazer module */
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#define MCENT 0x60 /* not supported */
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#define MNET 0x80 /* not supported */
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#define MMASK 0x1F
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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[SLXOS_BUFFERSIZE];
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BYTE hi_rxbuf[SLXOS_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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/*#define CLK110 0xe ?? */
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/*#define CLK110 0xf ?? */
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/*
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* the driver's soft config state
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* This is visible via ioctl()'s.
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*/
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struct si_softc {
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struct device sc_dev; /* base device */
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int sc_type; /* adapter type */
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char *sc_typename; /* adapter type string */
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struct si_port *sc_ports; /* port structures for this card */
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caddr_t sc_paddr; /* physical addr of iomem */
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caddr_t sc_maddr; /* kvaddr of iomem */
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int sc_nport; /* # ports on this card */
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int sc_irq; /* copy of attach irq */
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int sc_eisa_iobase; /* EISA io port address */
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int sc_eisa_irqbits;
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struct kern_devconf sc_kdc;
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};
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/*
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* Per-port (channel) soft information structure, stored in the driver.
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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;
|
||
|
|
int sp_active_out; /* callout is open */
|
||
|
|
int sp_flags;
|
||
|
|
int sp_dtr_wait; /* DTR holddown in hz */
|
||
|
|
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;
|
||
|
|
#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 */
|
||
|
|
|
||
|
|
/* sp_flags */
|
||
|
|
#define SPF_COOKMODE 0x0003
|
||
|
|
#define SPFC_WELL 0
|
||
|
|
#define SPFC_MEDIUM 1
|
||
|
|
#define SPFC_RAW 2
|
||
|
|
#define spfc_clear(pp) (pp)->sp_flags &= ~SPF_COOKMODE
|
||
|
|
#define SPF_COOK_WELL(pp) spfc_clear(pp)
|
||
|
|
#define SPF_COOK_MEDIUM(pp) {spfc_clear(pp);(pp)->sp_flags|=SPFC_MEDIUM;}
|
||
|
|
#define SPF_COOK_RAW(pp) {spfc_clear(pp);(pp)->sp_flags|=SPFC_RAW;}
|
||
|
|
#define SPF_SETCOOK(pp, c) {spfc_clear(pp);(pp)->sp_flags|=(c);}
|
||
|
|
#define SPF_ISCOOKWELL(pp) (((pp)->sp_flags & SPF_COOKMODE) == SPFC_WELL)
|
||
|
|
#define SPF_ISCOOKMEDIUM(pp) (((pp)->sp_flags & SPF_COOKMODE) == SPFC_MEDIUM)
|
||
|
|
#define SPF_ISCOOKRAW(pp) (((pp)->sp_flags & SPF_COOKMODE) == SPFC_RAW)
|
||
|
|
#define SPF_COOKWELL_ALWAYS 0x0004 /* always use line disc */
|
||
|
|
/* 0x0008 */
|
||
|
|
#define SPF_IXANY 0x0020 /* IXANY enable/disable flag */
|
||
|
|
#define SPF_CTSOFLOW 0x0040 /* use CTS to handle o/p flow */
|
||
|
|
#define SPF_RTSIFLOW 0x0080 /* use RTS to handle i/p flow */
|
||
|
|
#define SPF_PPP 0x0100 /* special handling for upper
|
||
|
|
* level protocol code */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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)
|
||
|
|
*/
|
||
|
|
#ifdef KERNEL
|
||
|
|
#ifdef SI_DEBUG
|
||
|
|
static void si_dprintf();
|
||
|
|
static char *si_mctl2str();
|
||
|
|
#define DPRINT(x) si_dprintf x
|
||
|
|
#else
|
||
|
|
#define DPRINT(x) /* void */
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#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_DIRECT 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:1, /* 0 - 1 cards */
|
||
|
|
sid_control:1, /* controlling device (all cards) */
|
||
|
|
sid_xprint:1; /* xprint version of line */
|
||
|
|
} sidev_t;
|
||
|
|
struct si_tcsi {
|
||
|
|
sidev_t tc_dev;
|
||
|
|
union {
|
||
|
|
int x_int;
|
||
|
|
int x_dbglvl;
|
||
|
|
int x_modemflag;
|
||
|
|
} 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
|
||
|
|
#define tc_modemflag tc_action.x_modemflag
|
||
|
|
#define tc_string tc_action.x_string
|
||
|
|
};
|
||
|
|
#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 */
|
||
|
|
#define TCSIMIN _IOW('S', 99, struct si_tcsi) /* TX min xfer amount */
|
||
|
|
/* 100 defunct */
|
||
|
|
/* 101 defunct */
|
||
|
|
/* 102 defunct */
|
||
|
|
/* 103 defunct */
|
||
|
|
#define TCSIIXANY _IOW('S', 103, struct si_tcsi) /* enable ixany */
|
||
|
|
/* 104 defunct */
|
||
|
|
#define TCSISTATE _IOWR('S', 105, struct si_tcsi) /* get current state of RTS
|
||
|
|
DCD and DTR pins */
|
||
|
|
/* Set/reset/enquire cook mode, 1 = always use line disc
|
||
|
|
* -1 = enquire current setting */
|
||
|
|
#define TCSICOOKMODE _IOWR('S', 106, struct si_tcsi)
|
||
|
|
#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)
|
||
|
|
#define TCSIGMIN _IOWR('S', 112, struct si_tcsi)
|
||
|
|
/* 113 defunct */
|
||
|
|
/* 114 defunct */
|
||
|
|
/* 115 defunct */
|
||
|
|
/* 116 defunct */
|
||
|
|
#define TCSIMODEM _IOWR('S', 117, struct si_tcsi) /* set/clear/query the modem bit */
|
||
|
|
|
||
|
|
#define TCSISDBG_ALL _IOW('S', 118, int) /* set global debug level */
|
||
|
|
#define TCSIGDBG_ALL _IOR('S', 119, int) /* get global debug level */
|
||
|
|
|
||
|
|
#define TCSIFLOW _IOWR('S', 120, struct si_tcsi) /* set/get h/w flow state */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Stuff for downloading and initialising an adapter
|
||
|
|
*/
|
||
|
|
struct si_loadcode {
|
||
|
|
int sd_offset;
|
||
|
|
int sd_nbytes;
|
||
|
|
char sd_bytes[1024]; /* actually larger than this */
|
||
|
|
};
|
||
|
|
#define TCSIDOWNLOAD _IOW('S', 121, struct si_loadcode)
|
||
|
|
#define TCSIBOOT _IOR('S', 122, struct si_tcsi)
|
||
|
|
|
||
|
|
#define TCSIPPP _IOWR('S', 123, struct si_tcsi) /* set/get PPP flag bit */
|
||
|
|
#define TCSIMODULES _IOR('S', 124, int) /* Number of modules found */
|
||
|
|
|
||
|
|
#define IOCTL_MAX 124
|
||
|
|
|
||
|
|
#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"
|
||
|
|
|