si.c revision 130344
110015Speter/* 212496Speter * Device driver for Specialix range (SI/XIO) of serial line multiplexors. 310015Speter * 434832Speter * Copyright (C) 1990, 1992, 1998 Specialix International, 510015Speter * Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk> 656505Speter * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au> 710015Speter * 810015Speter * Originally derived from: SunOS 4.x version 910015Speter * Ported from BSDI version to FreeBSD by Peter Wemm. 1010015Speter * 1110015Speter * Redistribution and use in source and binary forms, with or without 1210015Speter * modification, are permitted provided that the following conditions 1310015Speter * are met: 1410015Speter * 1. Redistributions of source code must retain the above copyright 1510015Speter * notices, this list of conditions and the following disclaimer. 1610015Speter * 2. Redistributions in binary form must reproduce the above copyright 1710015Speter * notices, this list of conditions and the following disclaimer in the 1810015Speter * documentation and/or other materials provided with the distribution. 1910015Speter * 3. All advertising materials mentioning features or use of this software 2010015Speter * must display the following acknowledgement: 2110015Speter * This product includes software developed by Andy Rutter of 2210015Speter * Advanced Methods and Tools Ltd. based on original information 2310015Speter * from Specialix International. 2410015Speter * 4. Neither the name of Advanced Methods and Tools, nor Specialix 2510015Speter * International may be used to endorse or promote products derived from 2610015Speter * this software without specific prior written permission. 2710015Speter * 2810015Speter * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED 2910015Speter * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 3010015Speter * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 3110015Speter * NO EVENT SHALL THE AUTHORS BE LIABLE. 3210015Speter * 3310015Speter */ 3410015Speter 35119419Sobrien#include <sys/cdefs.h> 36119419Sobrien__FBSDID("$FreeBSD: head/sys/dev/si/si.c 130344 2004-06-11 11:16:26Z phk $"); 37119419Sobrien 3810015Speter#ifndef lint 3934832Speterstatic const char si_copyright1[] = "@(#) Copyright (C) Specialix International, 1990,1992,1998", 4034832Speter si_copyright2[] = "@(#) Copyright (C) Andy Rutter 1993", 4156505Speter si_copyright3[] = "@(#) Copyright (C) Peter Wemm 2000"; 4210015Speter#endif /* not lint */ 4310015Speter 4431778Seivind#include "opt_compat.h" 4532929Seivind#include "opt_debug_si.h" 46111899Sdas#include "opt_tty.h" 4731778Seivind 4810015Speter#include <sys/param.h> 4910015Speter#include <sys/systm.h> 50130344Sphk#if defined(COMPAT_43) 5124207Sbde#include <sys/ioctl_compat.h> 5224207Sbde#endif 5310015Speter#include <sys/tty.h> 5410015Speter#include <sys/conf.h> 5524131Sbde#include <sys/fcntl.h> 5610015Speter#include <sys/kernel.h> 5710015Speter#include <sys/malloc.h> 5815683Speter#include <sys/sysctl.h> 5956498Speter#include <sys/bus.h> 6056498Speter#include <machine/bus.h> 6156498Speter#include <sys/rman.h> 6256498Speter#include <machine/resource.h> 6310015Speter 6410015Speter 6512659Sbde#include <vm/vm.h> 6612662Sdg#include <vm/pmap.h> 6712659Sbde 6813353Speter#include <machine/stdarg.h> 6910015Speter 7056498Speter#include <dev/si/sireg.h> 7156505Speter#include <dev/si/sivar.h> 7256498Speter#include <dev/si/si.h> 7356498Speter 7410015Speter/* 7510015Speter * This device driver is designed to interface the Specialix International 7634832Speter * SI, XIO and SX range of serial multiplexor cards to FreeBSD on an ISA, 7734832Speter * EISA or PCI bus machine. 7810015Speter * 7934832Speter * The controller is interfaced to the host via dual port RAM 8034832Speter * and an interrupt. 8133395Speter * 8234832Speter * The code for the Host 1 (very old ISA cards) has not been tested. 8310015Speter */ 8410015Speter 8517547Speter#define POLL /* turn on poller to scan for lost interrupts */ 8617547Speter#define REALPOLL /* on each poll, scan for work regardless */ 8717547Speter#define POLLHZ (hz/10) /* 10 times per second */ 8812496Speter#define SI_I_HIGH_WATER (TTYHOG - 2 * SI_BUFFERSIZE) 8934832Speter#define INT_COUNT 25000 /* max of 125 ints per second */ 9034832Speter#define JET_INT_COUNT 100 /* max of 100 ints per second */ 9115639Speter#define RXINT_COUNT 1 /* one rxint per 10 milliseconds */ 9210015Speter 9310015Speterenum si_mctl { GET, SET, BIS, BIC }; 9410015Speter 9556498Speterstatic void si_command(struct si_port *, int, int); 9656498Speterstatic int si_modem(struct si_port *, enum si_mctl, int); 9756498Speterstatic void si_write_enable(struct si_port *, int); 9883366Sjulianstatic int si_Sioctl(dev_t, u_long, caddr_t, int, struct thread *); 9956498Speterstatic void si_start(struct tty *); 10056498Speterstatic void si_stop(struct tty *, int); 10125047Sbdestatic timeout_t si_lstart; 10256498Speterstatic void sihardclose(struct si_port *pp); 10356498Speterstatic void sidtrwakeup(void *chan); 10410015Speter 10556505Speter#ifdef SI_DEBUG 10656505Speterstatic char *si_mctl2str(enum si_mctl cmd); 10756505Speter#endif 10856505Speter 10956498Speterstatic int siparam(struct tty *, struct termios *); 11010015Speter 11156498Speterstatic void si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip); 11256498Speterstatic char * si_modulename(int host_type, int uart_type); 11310708Speter 11412675Sjulianstatic d_open_t siopen; 11512675Sjulianstatic d_close_t siclose; 11612675Sjulianstatic d_write_t siwrite; 11712675Sjulianstatic d_ioctl_t siioctl; 11812675Sjulian 11947625Sphkstatic struct cdevsw si_cdevsw = { 120126080Sphk .d_version = D_VERSION, 121111815Sphk .d_open = siopen, 122111815Sphk .d_close = siclose, 123111815Sphk .d_write = siwrite, 124111815Sphk .d_ioctl = siioctl, 125111815Sphk .d_name = "si", 126126080Sphk .d_flags = D_TTY | D_NEEDGIANT, 12738485Sbde}; 12812675Sjulian 12910962Speterstatic int si_Nports; 13010962Speterstatic int si_Nmodules; 13110962Speterstatic int si_debug = 0; /* data, not bss, so it's patchable */ 13210015Speter 13334832SpeterSYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RW, &si_debug, 0, ""); 134100743SpeterTUNABLE_INT("machdep.si_debug", &si_debug); 13534832Speter 13656498Speterstatic int si_numunits; 13710044Speter 13856505Speterdevclass_t si_devclass; 13956498Speter 14012174Speter#ifndef B2000 /* not standard, but the hardware knows it. */ 14110015Speter# define B2000 2000 14210015Speter#endif 14310015Speterstatic struct speedtab bdrates[] = { 14450442Speter { B75, CLK75, }, /* 0x0 */ 14550442Speter { B110, CLK110, }, /* 0x1 */ 14650442Speter { B150, CLK150, }, /* 0x3 */ 14750442Speter { B300, CLK300, }, /* 0x4 */ 14850442Speter { B600, CLK600, }, /* 0x5 */ 14950442Speter { B1200, CLK1200, }, /* 0x6 */ 15050442Speter { B2000, CLK2000, }, /* 0x7 */ 15150442Speter { B2400, CLK2400, }, /* 0x8 */ 15250442Speter { B4800, CLK4800, }, /* 0x9 */ 15350442Speter { B9600, CLK9600, }, /* 0xb */ 15450442Speter { B19200, CLK19200, }, /* 0xc */ 15550442Speter { B38400, CLK38400, }, /* 0x2 (out of order!) */ 15650442Speter { B57600, CLK57600, }, /* 0xd */ 15750442Speter { B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */ 15850442Speter { -1, -1 }, 15910015Speter}; 16010015Speter 16110015Speter 16210015Speter/* populated with approx character/sec rates - translated at card 16310015Speter * initialisation time to chars per tick of the clock */ 16410015Speterstatic int done_chartimes = 0; 16510015Speterstatic struct speedtab chartimes[] = { 16650442Speter { B75, 8, }, 16750442Speter { B110, 11, }, 16850442Speter { B150, 15, }, 16950442Speter { B300, 30, }, 17050442Speter { B600, 60, }, 17150442Speter { B1200, 120, }, 17250442Speter { B2000, 200, }, 17350442Speter { B2400, 240, }, 17450442Speter { B4800, 480, }, 17550442Speter { B9600, 960, }, 17650442Speter { B19200, 1920, }, 17750442Speter { B38400, 3840, }, 17850442Speter { B57600, 5760, }, 17950442Speter { B115200, 11520, }, 18050442Speter { -1, -1 }, 18110015Speter}; 18210015Speterstatic volatile int in_intr = 0; /* Inside interrupt handler? */ 18310015Speter 18410015Speter#ifdef POLL 18515683Speterstatic int si_pollrate; /* in addition to irq */ 18656498Speterstatic int si_realpoll = 0; /* poll HW on timer */ 18715639Speter 18816403SpeterSYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, ""); 18917547SpeterSYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, ""); 19050442Speter 19110015Speterstatic int init_finished = 0; 19256498Speterstatic void si_poll(void *); 19310015Speter#endif 19410015Speter 19510015Speter/* 19610015Speter * Array of adapter types and the corresponding RAM size. The order of 19710015Speter * entries here MUST match the ordinal of the adapter type. 19810015Speter */ 19910015Speterstatic char *si_type[] = { 20010015Speter "EMPTY", 20110015Speter "SIHOST", 20234832Speter "SIMCA", /* FreeBSD does not support Microchannel */ 20310015Speter "SIHOST2", 20410015Speter "SIEISA", 20533395Speter "SIPCI", 20633395Speter "SXPCI", 20733395Speter "SXISA", 20810015Speter}; 20910015Speter 21056498Speter/* 21156498Speter * We have to make an 8 bit version of bcopy, since some cards can't 21256498Speter * deal with 32 bit I/O 21356498Speter */ 21456498Speterstatic void __inline 21556498Spetersi_bcopy(const void *src, void *dst, size_t len) 21656498Speter{ 21756498Speter while (len--) 21856498Speter *(((u_char *)dst)++) = *(((const u_char *)src)++); 21956498Speter} 22056498Speterstatic void __inline 22156498Spetersi_vbcopy(const volatile void *src, void *dst, size_t len) 22256498Speter{ 22356498Speter while (len--) 22456498Speter *(((u_char *)dst)++) = *(((const volatile u_char *)src)++); 22556498Speter} 22656498Speterstatic void __inline 22756498Spetersi_bcopyv(const void *src, volatile void *dst, size_t len) 22856498Speter{ 22956498Speter while (len--) 23056498Speter *(((volatile u_char *)dst)++) = *(((const u_char *)src)++); 23156498Speter} 23256498Speter 23356498Speter 23434832Speter/* 23510015Speter * Attach the device. Initialize the card. 23610015Speter */ 23756505Speterint 23856498Spetersiattach(device_t dev) 23910015Speter{ 24056498Speter int unit; 24156498Speter struct si_softc *sc; 24210015Speter struct si_port *pp; 24310015Speter volatile struct si_channel *ccbp; 24410015Speter volatile struct si_reg *regp; 24510015Speter volatile caddr_t maddr; 24610015Speter struct si_module *modp; 24710015Speter struct speedtab *spt; 24810015Speter int nmodule, nport, x, y; 24912174Speter int uart_type; 25010015Speter 25156498Speter sc = device_get_softc(dev); 25256498Speter unit = device_get_unit(dev); 25310015Speter 25456505Speter sc->sc_typename = si_type[sc->sc_type]; 25556505Speter if (si_numunits < unit + 1) 25656505Speter si_numunits = unit + 1; 25756505Speter 25856498Speter DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit)); 25910015Speter 26056498Speter#ifdef POLL 26156498Speter if (si_pollrate == 0) { 26256498Speter si_pollrate = POLLHZ; /* in addition to irq */ 26356498Speter#ifdef REALPOLL 26456498Speter si_realpoll = 1; /* scan always */ 26556498Speter#endif 26656498Speter } 26756498Speter#endif 26856498Speter 26933395Speter DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit, 27033395Speter sc->sc_typename, sc->sc_paddr, sc->sc_maddr)); 27133395Speter 27210015Speter sc->sc_ports = NULL; /* mark as uninitialised */ 27310015Speter 27410015Speter maddr = sc->sc_maddr; 27510015Speter 27634832Speter /* Stop the CPU first so it won't stomp around while we load */ 27734832Speter 27834832Speter switch (sc->sc_type) { 27934832Speter case SIEISA: 28056498Speter outb(sc->sc_iobase + 2, sc->sc_irq << 4); 28134832Speter break; 28234832Speter case SIPCI: 28334832Speter *(maddr+SIPCIRESET) = 0; 28434832Speter break; 28534832Speter case SIJETPCI: /* fall through to JET ISA */ 28634832Speter case SIJETISA: 28734832Speter *(maddr+SIJETCONFIG) = 0; 28834832Speter break; 28934832Speter case SIHOST2: 29034832Speter *(maddr+SIPLRESET) = 0; 29134832Speter break; 29234832Speter case SIHOST: 29334832Speter *(maddr+SIRESET) = 0; 29434832Speter break; 29534832Speter default: /* this should never happen */ 29634832Speter printf("si%d: unsupported configuration\n", unit); 29756498Speter return EINVAL; 29834832Speter break; 29934832Speter } 30034832Speter 30134832Speter /* OK, now lets download the download code */ 30234832Speter 30336956Ssteve if (SI_ISJET(sc->sc_type)) { 30433395Speter DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n", 30556498Speter unit, si3_t225_dsize)); 30634832Speter si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr, 30734832Speter si3_t225_dsize); 30834832Speter DPRINT((0, DBG_DOWNLOAD, 30934832Speter "si%d: jet_bootstrap: nbytes %d -> %x\n", 31056498Speter unit, si3_t225_bsize, si3_t225_bootloadaddr)); 31134832Speter si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr, 31234832Speter si3_t225_bsize); 31334832Speter } else { 31433395Speter DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n", 31556498Speter unit, si2_z280_dsize)); 31634832Speter si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr, 31734832Speter si2_z280_dsize); 31833395Speter } 31910015Speter 32034832Speter /* Now start the CPU */ 32134832Speter 32210015Speter switch (sc->sc_type) { 32310015Speter case SIEISA: 32434832Speter /* modify the download code to tell it that it's on an EISA */ 32534832Speter *(maddr + 0x42) = 1; 32656498Speter outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4); 32756498Speter (void)inb(sc->sc_iobase + 3); /* reset interrupt */ 32810015Speter break; 32933395Speter case SIPCI: 33034832Speter /* modify the download code to tell it that it's on a PCI */ 33133395Speter *(maddr+0x42) = 1; 33233395Speter *(maddr+SIPCIRESET) = 1; 33333395Speter *(maddr+SIPCIINTCL) = 0; 33433395Speter break; 33533395Speter case SIJETPCI: 33633395Speter *(maddr+SIJETRESET) = 0; 33733395Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN; 33833395Speter break; 33933395Speter case SIJETISA: 34033395Speter *(maddr+SIJETRESET) = 0; 34134832Speter switch (sc->sc_irq) { 34256498Speter case 9: 34334832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90; 34434832Speter break; 34556498Speter case 10: 34634832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0; 34734832Speter break; 34856498Speter case 11: 34934832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0; 35034832Speter break; 35156498Speter case 12: 35234832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0; 35334832Speter break; 35456498Speter case 15: 35534832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0; 35634832Speter break; 35734832Speter } 35833395Speter break; 35910015Speter case SIHOST: 36010015Speter *(maddr+SIRESET_CL) = 0; 36110015Speter *(maddr+SIINTCL_CL) = 0; 36210015Speter break; 36310015Speter case SIHOST2: 36410015Speter *(maddr+SIPLRESET) = 0x10; 36510015Speter switch (sc->sc_irq) { 36656498Speter case 11: 36710015Speter *(maddr+SIPLIRQ11) = 0x10; 36810015Speter break; 36956498Speter case 12: 37010015Speter *(maddr+SIPLIRQ12) = 0x10; 37110015Speter break; 37256498Speter case 15: 37310015Speter *(maddr+SIPLIRQ15) = 0x10; 37410015Speter break; 37510015Speter } 37610015Speter *(maddr+SIPLIRQCLR) = 0x10; 37710015Speter break; 37834832Speter default: /* this should _REALLY_ never happen */ 37934832Speter printf("si%d: Uh, it was supported a second ago...\n", unit); 38056498Speter return EINVAL; 38110015Speter } 38210015Speter 38310015Speter DELAY(1000000); /* wait around for a second */ 38410015Speter 38510015Speter regp = (struct si_reg *)maddr; 38610015Speter y = 0; 38710015Speter /* wait max of 5 sec for init OK */ 38810015Speter while (regp->initstat == 0 && y++ < 10) { 38910015Speter DELAY(500000); 39010015Speter } 39110015Speter switch (regp->initstat) { 39210015Speter case 0: 39310015Speter printf("si%d: startup timeout - aborting\n", unit); 39412174Speter sc->sc_type = SIEMPTY; 39556498Speter return EINVAL; 39610015Speter case 1: 39736956Ssteve if (SI_ISJET(sc->sc_type)) { 39834832Speter /* set throttle to 100 times per second */ 39934832Speter regp->int_count = JET_INT_COUNT; 40034832Speter /* rx_intr_count is a NOP in Jet */ 40134832Speter } else { 40234832Speter /* set throttle to 125 times per second */ 40334832Speter regp->int_count = INT_COUNT; 40434832Speter /* rx intr max of 25 times per second */ 40534832Speter regp->rx_int_count = RXINT_COUNT; 40634832Speter } 40710015Speter regp->int_pending = 0; /* no intr pending */ 40810015Speter regp->int_scounter = 0; /* reset counter */ 40910015Speter break; 41010015Speter case 0xff: 41110015Speter /* 41210015Speter * No modules found, so give up on this one. 41310015Speter */ 41410015Speter printf("si%d: %s - no ports found\n", unit, 41510015Speter si_type[sc->sc_type]); 41610015Speter return 0; 41710015Speter default: 41834832Speter printf("si%d: download code version error - initstat %x\n", 41910015Speter unit, regp->initstat); 42056498Speter return EINVAL; 42110015Speter } 42210015Speter 42310015Speter /* 42410015Speter * First time around the ports just count them in order 42510015Speter * to allocate some memory. 42610015Speter */ 42710015Speter nport = 0; 42810015Speter modp = (struct si_module *)(maddr + 0x80); 42910015Speter for (;;) { 43012174Speter DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp)); 43134832Speter switch (modp->sm_type) { 43234832Speter case TA4: 43310015Speter DPRINT((0, DBG_DOWNLOAD, 43434832Speter "si%d: Found old TA4 module, 4 ports\n", 43534832Speter unit)); 43634832Speter x = 4; 43710015Speter break; 43834832Speter case TA8: 43934832Speter DPRINT((0, DBG_DOWNLOAD, 44034832Speter "si%d: Found old TA8 module, 8 ports\n", 44134832Speter unit)); 44234832Speter x = 8; 44334832Speter break; 44434832Speter case TA4_ASIC: 44534832Speter DPRINT((0, DBG_DOWNLOAD, 44634832Speter "si%d: Found ASIC TA4 module, 4 ports\n", 44734832Speter unit)); 44834832Speter x = 4; 44934832Speter break; 45034832Speter case TA8_ASIC: 45134832Speter DPRINT((0, DBG_DOWNLOAD, 45234832Speter "si%d: Found ASIC TA8 module, 8 ports\n", 45334832Speter unit)); 45434832Speter x = 8; 45534832Speter break; 45634832Speter case MTA: 45734832Speter DPRINT((0, DBG_DOWNLOAD, 45834832Speter "si%d: Found CD1400 module, 8 ports\n", 45934832Speter unit)); 46034832Speter x = 8; 46134832Speter break; 46234832Speter case SXDC: 46334832Speter DPRINT((0, DBG_DOWNLOAD, 46434832Speter "si%d: Found SXDC module, 8 ports\n", 46534832Speter unit)); 46634832Speter x = 8; 46734832Speter break; 46810015Speter default: 46910015Speter printf("si%d: unknown module type %d\n", 47010015Speter unit, modp->sm_type); 47134832Speter goto try_next; 47210015Speter } 47334832Speter 47434832Speter /* this was limited in firmware and is also a driver issue */ 47534832Speter if ((nport + x) > SI_MAXPORTPERCARD) { 47634832Speter printf("si%d: extra ports ignored\n", unit); 47734832Speter goto try_next; 47834832Speter } 47934832Speter 48034832Speter nport += x; 48134832Speter si_Nports += x; 48234832Speter si_Nmodules++; 48334832Speter 48434832Spetertry_next: 48510015Speter if (modp->sm_next == 0) 48610015Speter break; 48710015Speter modp = (struct si_module *) 48810015Speter (maddr + (unsigned)(modp->sm_next & 0x7fff)); 48910015Speter } 49010015Speter sc->sc_ports = (struct si_port *)malloc(sizeof(struct si_port) * nport, 49169781Sdwmalone M_DEVBUF, M_NOWAIT | M_ZERO); 49210015Speter if (sc->sc_ports == 0) { 49310015Speter printf("si%d: fail to malloc memory for port structs\n", 49410015Speter unit); 49556498Speter return EINVAL; 49610015Speter } 49710015Speter sc->sc_nport = nport; 49810015Speter 49910015Speter /* 50010015Speter * Scan round the ports again, this time initialising. 50110015Speter */ 50210015Speter pp = sc->sc_ports; 50310015Speter nmodule = 0; 50410015Speter modp = (struct si_module *)(maddr + 0x80); 50534832Speter uart_type = 1000; /* arbitary, > uchar_max */ 50610015Speter for (;;) { 50734832Speter switch (modp->sm_type) { 50834832Speter case TA4: 50934832Speter nport = 4; 51010015Speter break; 51134832Speter case TA8: 51234832Speter nport = 8; 51334832Speter break; 51434832Speter case TA4_ASIC: 51534832Speter nport = 4; 51634832Speter break; 51734832Speter case TA8_ASIC: 51834832Speter nport = 8; 51934832Speter break; 52034832Speter case MTA: 52134832Speter nport = 8; 52234832Speter break; 52334832Speter case SXDC: 52434832Speter nport = 8; 52534832Speter break; 52610015Speter default: 52734832Speter goto try_next2; 52810015Speter } 52934832Speter nmodule++; 53034832Speter ccbp = (struct si_channel *)((char *)modp + 0x100); 53134832Speter if (uart_type == 1000) 53234832Speter uart_type = ccbp->type; 53334832Speter else if (uart_type != ccbp->type) 53434832Speter printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n", 53534832Speter unit, nmodule, 53634832Speter ccbp->type, si_modulename(sc->sc_type, ccbp->type), 53734832Speter uart_type, si_modulename(sc->sc_type, uart_type)); 53834832Speter 53934832Speter for (x = 0; x < nport; x++, pp++, ccbp++) { 54034832Speter pp->sp_ccb = ccbp; /* save the address */ 54172685Speter pp->sp_tty = ttymalloc(NULL); 54234832Speter pp->sp_pend = IDLE_CLOSE; 54334832Speter pp->sp_state = 0; /* internal flag */ 54434832Speter pp->sp_dtr_wait = 3 * hz; 54534832Speter pp->sp_iin.c_iflag = TTYDEF_IFLAG; 54634832Speter pp->sp_iin.c_oflag = TTYDEF_OFLAG; 54734832Speter pp->sp_iin.c_cflag = TTYDEF_CFLAG; 54834832Speter pp->sp_iin.c_lflag = TTYDEF_LFLAG; 54934832Speter termioschars(&pp->sp_iin); 55034832Speter pp->sp_iin.c_ispeed = pp->sp_iin.c_ospeed = 55134832Speter TTYDEF_SPEED;; 55234832Speter pp->sp_iout = pp->sp_iin; 55334832Speter } 55434832Spetertry_next2: 55510015Speter if (modp->sm_next == 0) { 55634832Speter printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n", 55710015Speter unit, 55810015Speter sc->sc_typename, 55910015Speter sc->sc_nport, 56012174Speter nmodule, 56134832Speter uart_type, 56234832Speter si_modulename(sc->sc_type, uart_type)); 56310015Speter break; 56410015Speter } 56510015Speter modp = (struct si_module *) 56610015Speter (maddr + (unsigned)(modp->sm_next & 0x7fff)); 56710015Speter } 56810015Speter if (done_chartimes == 0) { 56910015Speter for (spt = chartimes ; spt->sp_speed != -1; spt++) { 57010015Speter if ((spt->sp_code /= hz) == 0) 57110015Speter spt->sp_code = 1; 57210015Speter } 57310015Speter done_chartimes = 1; 57410015Speter } 57512502Sjulian 57612675Sjulian/* path name devsw minor type uid gid perm*/ 57750442Speter for (x = 0; x < sc->sc_nport; x++) { 57834735Speter /* sync with the manuals that start at 1 */ 57956498Speter y = x + 1 + unit * (1 << SI_CARDSHIFT); 58050442Speter make_dev(&si_cdevsw, x, 0, 0, 0600, "ttyA%02d", y); 58150442Speter make_dev(&si_cdevsw, x + 0x00080, 0, 0, 0600, "cuaA%02d", y); 58250442Speter make_dev(&si_cdevsw, x + 0x10000, 0, 0, 0600, "ttyiA%02d", y); 58350442Speter make_dev(&si_cdevsw, x + 0x10080, 0, 0, 0600, "cuaiA%02d", y); 58450442Speter make_dev(&si_cdevsw, x + 0x20000, 0, 0, 0600, "ttylA%02d", y); 58550442Speter make_dev(&si_cdevsw, x + 0x20080, 0, 0, 0600, "cualA%02d", y); 58612675Sjulian } 58750254Sphk make_dev(&si_cdevsw, 0x40000, 0, 0, 0600, "si_control"); 58856498Speter return (0); 58910015Speter} 59010015Speter 59112675Sjulianstatic int 59283366Sjuliansiopen(dev_t dev, int flag, int mode, struct thread *td) 59310015Speter{ 59410015Speter int oldspl, error; 59510015Speter int card, port; 59656498Speter struct si_softc *sc; 59756498Speter struct tty *tp; 59810015Speter volatile struct si_channel *ccbp; 59910015Speter struct si_port *pp; 60010015Speter int mynor = minor(dev); 60110015Speter 60210015Speter /* quickly let in /dev/si_control */ 60310015Speter if (IS_CONTROLDEV(mynor)) { 60493593Sjhb if ((error = suser(td))) 60510015Speter return(error); 60610015Speter return(0); 60710015Speter } 60810015Speter 60910015Speter card = SI_CARD(mynor); 61056498Speter sc = devclass_get_softc(si_devclass, card); 61156498Speter if (sc == NULL) 61210015Speter return (ENXIO); 61310015Speter 61412174Speter if (sc->sc_type == SIEMPTY) { 61512174Speter DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: type %s??\n", 61610015Speter card, sc->sc_typename)); 61710015Speter return(ENXIO); 61810015Speter } 61910015Speter 62010015Speter port = SI_PORT(mynor); 62110015Speter if (port >= sc->sc_nport) { 62212174Speter DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: nports %d\n", 62310015Speter card, sc->sc_nport)); 62410015Speter return(ENXIO); 62510015Speter } 62610015Speter 62710015Speter#ifdef POLL 62810015Speter /* 62910015Speter * We've now got a device, so start the poller. 63010015Speter */ 63110015Speter if (init_finished == 0) { 63215639Speter timeout(si_poll, (caddr_t)0L, si_pollrate); 63310015Speter init_finished = 1; 63410015Speter } 63510015Speter#endif 63610015Speter 63710015Speter /* initial/lock device */ 63810015Speter if (IS_STATE(mynor)) { 63910015Speter return(0); 64010015Speter } 64110015Speter 64210015Speter pp = sc->sc_ports + port; 64310015Speter tp = pp->sp_tty; /* the "real" tty */ 64451654Sphk dev->si_tty = tp; 64510015Speter ccbp = pp->sp_ccb; /* Find control block */ 64650016Snsayer DPRINT((pp, DBG_ENTRY|DBG_OPEN, "siopen(%s,%x,%x,%x)\n", 64783366Sjulian devtoname(dev), flag, mode, td)); 64810015Speter 64910015Speter oldspl = spltty(); /* Keep others out */ 65010015Speter error = 0; 65110015Speter 65210015Speteropen_top: 65310015Speter while (pp->sp_state & SS_DTR_OFF) { 65410015Speter error = tsleep(&pp->sp_dtr_wait, TTIPRI|PCATCH, "sidtr", 0); 65510015Speter if (error != 0) 65610015Speter goto out; 65710015Speter } 65810015Speter 65910015Speter if (tp->t_state & TS_ISOPEN) { 66010015Speter /* 66110015Speter * The device is open, so everything has been initialised. 66210015Speter * handle conflicts. 66310015Speter */ 66410015Speter if (IS_CALLOUT(mynor)) { 66510015Speter if (!pp->sp_active_out) { 66610015Speter error = EBUSY; 66710015Speter goto out; 66810015Speter } 66910015Speter } else { 67010015Speter if (pp->sp_active_out) { 67110015Speter if (flag & O_NONBLOCK) { 67210015Speter error = EBUSY; 67310015Speter goto out; 67410015Speter } 67510015Speter error = tsleep(&pp->sp_active_out, 67610015Speter TTIPRI|PCATCH, "sibi", 0); 67710015Speter if (error != 0) 67810015Speter goto out; 67910015Speter goto open_top; 68010015Speter } 68110015Speter } 68243425Sphk if (tp->t_state & TS_XCLUDE && 68393593Sjhb suser(td)) { 68410015Speter DPRINT((pp, DBG_OPEN|DBG_FAIL, 68510015Speter "already open and EXCLUSIVE set\n")); 68610015Speter error = EBUSY; 68710015Speter goto out; 68810015Speter } 68910015Speter } else { 69010015Speter /* 69110015Speter * The device isn't open, so there are no conflicts. 69210015Speter * Initialize it. Avoid sleep... :-) 69310015Speter */ 69410015Speter DPRINT((pp, DBG_OPEN, "first open\n")); 69510015Speter tp->t_oproc = si_start; 69651654Sphk tp->t_stop = si_stop; 69710015Speter tp->t_param = siparam; 69810015Speter tp->t_dev = dev; 69910015Speter tp->t_termios = mynor & SI_CALLOUT_MASK 70010015Speter ? pp->sp_iout : pp->sp_iin; 70110015Speter 70210015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 70310015Speter 70410015Speter ++pp->sp_wopeners; /* in case of sleep in siparam */ 70510015Speter 70610015Speter error = siparam(tp, &tp->t_termios); 70710015Speter 70810015Speter --pp->sp_wopeners; 70910015Speter if (error != 0) 71010015Speter goto out; 71110015Speter /* XXX: we should goto_top if siparam slept */ 71210015Speter 71310015Speter /* set initial DCD state */ 71410015Speter pp->sp_last_hi_ip = ccbp->hi_ip; 71510015Speter if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) { 716130077Sphk ttyld_modem(tp, 1); 71710015Speter } 71810015Speter } 71910015Speter 72010015Speter /* whoops! we beat the close! */ 72110015Speter if (pp->sp_state & SS_CLOSING) { 72210015Speter /* try and stop it from proceeding to bash the hardware */ 72310015Speter pp->sp_state &= ~SS_CLOSING; 72410015Speter } 72510015Speter 72610015Speter /* 72710015Speter * Wait for DCD if necessary 72810015Speter */ 72950442Speter if (!(tp->t_state & TS_CARR_ON) && 73050442Speter !IS_CALLOUT(mynor) && 73150442Speter !(tp->t_cflag & CLOCAL) && 73250442Speter !(flag & O_NONBLOCK)) { 73310015Speter ++pp->sp_wopeners; 73410015Speter DPRINT((pp, DBG_OPEN, "sleeping for carrier\n")); 73510015Speter error = tsleep(TSA_CARR_ON(tp), TTIPRI|PCATCH, "sidcd", 0); 73610015Speter --pp->sp_wopeners; 73710015Speter if (error != 0) 73810015Speter goto out; 73910015Speter goto open_top; 74010015Speter } 74110015Speter 742130077Sphk error = ttyld_open(tp, dev); 743130096Sphk pp->sp_hotchar = ttyldoptim(tp); 74410015Speter if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor)) 74510015Speter pp->sp_active_out = TRUE; 74610015Speter 74710015Speter pp->sp_state |= SS_OPEN; /* made it! */ 74810015Speter 74910015Speterout: 75010015Speter splx(oldspl); 75110015Speter 75210015Speter DPRINT((pp, DBG_OPEN, "leaving siopen\n")); 75310015Speter 75410015Speter if (!(tp->t_state & TS_ISOPEN) && pp->sp_wopeners == 0) 75510015Speter sihardclose(pp); 75610015Speter 75710015Speter return(error); 75810015Speter} 75910015Speter 76012675Sjulianstatic int 76183366Sjuliansiclose(dev_t dev, int flag, int mode, struct thread *td) 76210015Speter{ 76356498Speter struct si_port *pp; 76456498Speter struct tty *tp; 76510015Speter int oldspl; 76610015Speter int error = 0; 76710015Speter int mynor = minor(dev); 76810015Speter 76910015Speter if (IS_SPECIAL(mynor)) 77010015Speter return(0); 77110015Speter 77210015Speter oldspl = spltty(); 77310015Speter 77410015Speter pp = MINOR2PP(mynor); 77510015Speter tp = pp->sp_tty; 77610015Speter 77750016Snsayer DPRINT((pp, DBG_ENTRY|DBG_CLOSE, "siclose(%s,%x,%x,%x) sp_state:%x\n", 77883366Sjulian devtoname(dev), flag, mode, td, pp->sp_state)); 77910015Speter 78010015Speter /* did we sleep and loose a race? */ 78110015Speter if (pp->sp_state & SS_CLOSING) { 78210015Speter /* error = ESOMETING? */ 78310015Speter goto out; 78410015Speter } 78510015Speter 78610015Speter /* begin race detection.. */ 78710015Speter pp->sp_state |= SS_CLOSING; 78810015Speter 78910015Speter si_write_enable(pp, 0); /* block writes for ttywait() */ 79010015Speter 79110015Speter /* THIS MAY SLEEP IN TTYWAIT!!! */ 792130077Sphk ttyld_close(tp, flag); 79310015Speter 79410015Speter si_write_enable(pp, 1); 79510015Speter 79610015Speter /* did we sleep and somebody started another open? */ 79710015Speter if (!(pp->sp_state & SS_CLOSING)) { 79810015Speter /* error = ESOMETING? */ 79910015Speter goto out; 80010015Speter } 80110015Speter /* ok. we are now still on the right track.. nuke the hardware */ 80210015Speter 80310015Speter if (pp->sp_state & SS_LSTART) { 80429677Sgibbs untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 80510015Speter pp->sp_state &= ~SS_LSTART; 80610015Speter } 80710015Speter 80810015Speter sihardclose(pp); 80910015Speter ttyclose(tp); 81010015Speter pp->sp_state &= ~SS_OPEN; 81110015Speter 81210015Speterout: 81310015Speter DPRINT((pp, DBG_CLOSE|DBG_EXIT, "close done, returning\n")); 81410015Speter splx(oldspl); 81510015Speter return(error); 81610015Speter} 81710015Speter 81810015Speterstatic void 81956498Spetersihardclose(struct si_port *pp) 82010015Speter{ 82110015Speter int oldspl; 82210015Speter struct tty *tp; 82310015Speter volatile struct si_channel *ccbp; 82410015Speter 82510015Speter oldspl = spltty(); 82610015Speter 82710015Speter tp = pp->sp_tty; 82810015Speter ccbp = pp->sp_ccb; /* Find control block */ 82950442Speter if (tp->t_cflag & HUPCL || 83050442Speter (!pp->sp_active_out && 83150442Speter !(ccbp->hi_ip & IP_DCD) && 83250442Speter !(pp->sp_iin.c_cflag && CLOCAL)) || 83350442Speter !(tp->t_state & TS_ISOPEN)) { 83410015Speter 83510015Speter (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 83610015Speter (void) si_command(pp, FCLOSE, SI_NOWAIT); 83710015Speter 83810015Speter if (pp->sp_dtr_wait != 0) { 83910015Speter timeout(sidtrwakeup, pp, pp->sp_dtr_wait); 84010015Speter pp->sp_state |= SS_DTR_OFF; 84110015Speter } 84210015Speter 84310015Speter } 84410015Speter pp->sp_active_out = FALSE; 845111748Sdes wakeup(&pp->sp_active_out); 84610015Speter wakeup(TSA_CARR_ON(tp)); 84710015Speter 84810015Speter splx(oldspl); 84910015Speter} 85010015Speter 85110015Speter 85210015Speter/* 85310015Speter * called at splsoftclock()... 85410015Speter */ 85510015Speterstatic void 85656498Spetersidtrwakeup(void *chan) 85710015Speter{ 85810015Speter struct si_port *pp; 85910015Speter int oldspl; 86010015Speter 86110015Speter oldspl = spltty(); 86210015Speter 86310015Speter pp = (struct si_port *)chan; 86410015Speter pp->sp_state &= ~SS_DTR_OFF; 86510015Speter wakeup(&pp->sp_dtr_wait); 86610015Speter 86710015Speter splx(oldspl); 86810015Speter} 86910015Speter 87012675Sjulianstatic int 87156498Spetersiwrite(dev_t dev, struct uio *uio, int flag) 87210015Speter{ 87356498Speter struct si_port *pp; 87456498Speter struct tty *tp; 87510015Speter int error = 0; 87610015Speter int mynor = minor(dev); 87710015Speter int oldspl; 87810015Speter 87910015Speter if (IS_SPECIAL(mynor)) { 88010015Speter DPRINT((0, DBG_ENTRY|DBG_FAIL|DBG_WRITE, "siwrite(CONTROLDEV!!)\n")); 88110015Speter return(ENODEV); 88210015Speter } 88310015Speter pp = MINOR2PP(mynor); 88410015Speter tp = pp->sp_tty; 88550016Snsayer DPRINT((pp, DBG_WRITE, "siwrite(%s,%x,%x)\n", devtoname(dev), uio, flag)); 88610015Speter 88710015Speter oldspl = spltty(); 88810015Speter /* 88910015Speter * If writes are currently blocked, wait on the "real" tty 89010015Speter */ 89110015Speter while (pp->sp_state & SS_BLOCKWRITE) { 89210015Speter pp->sp_state |= SS_WAITWRITE; 89310015Speter DPRINT((pp, DBG_WRITE, "in siwrite, wait for SS_BLOCKWRITE to clear\n")); 89418515Speter if ((error = ttysleep(tp, (caddr_t)pp, TTOPRI|PCATCH, 89518515Speter "siwrite", tp->t_timeout))) { 89617291Speter if (error == EWOULDBLOCK) 89717290Speter error = EIO; 89810015Speter goto out; 89917290Speter } 90010015Speter } 90110015Speter 902130077Sphk error = ttyld_write(tp, uio, flag); 90310015Speterout: 90410015Speter splx(oldspl); 90510015Speter return (error); 90610015Speter} 90710015Speter 90810015Speter 90912675Sjulianstatic int 91083366Sjuliansiioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 91110015Speter{ 91210015Speter struct si_port *pp; 91356498Speter struct tty *tp; 91410015Speter int error; 91510015Speter int mynor = minor(dev); 91610015Speter int oldspl; 91710015Speter int blocked = 0; 91810015Speter#if defined(COMPAT_43) 91938351Sbde u_long oldcmd; 92010015Speter struct termios term; 92110015Speter#endif 92210015Speter 92310015Speter if (IS_SI_IOCTL(cmd)) 92483366Sjulian return(si_Sioctl(dev, cmd, data, flag, td)); 92510015Speter 92610015Speter pp = MINOR2PP(mynor); 92710015Speter tp = pp->sp_tty; 92810015Speter 92950016Snsayer DPRINT((pp, DBG_ENTRY|DBG_IOCTL, "siioctl(%s,%lx,%x,%x)\n", 93050016Snsayer devtoname(dev), cmd, data, flag)); 93110015Speter if (IS_STATE(mynor)) { 93210015Speter struct termios *ct; 93310015Speter 93410015Speter switch (mynor & SI_STATE_MASK) { 93510015Speter case SI_INIT_STATE_MASK: 93610015Speter ct = IS_CALLOUT(mynor) ? &pp->sp_iout : &pp->sp_iin; 93710015Speter break; 93810015Speter case SI_LOCK_STATE_MASK: 93916839Speter ct = IS_CALLOUT(mynor) ? &pp->sp_lout : &pp->sp_lin; 94010015Speter break; 94110015Speter default: 94210015Speter return (ENODEV); 94310015Speter } 94410015Speter switch (cmd) { 94510015Speter case TIOCSETA: 94693593Sjhb error = suser(td); 94710015Speter if (error != 0) 94810015Speter return (error); 94910015Speter *ct = *(struct termios *)data; 95010015Speter return (0); 95110015Speter case TIOCGETA: 95210015Speter *(struct termios *)data = *ct; 95310015Speter return (0); 95410015Speter case TIOCGETD: 95510015Speter *(int *)data = TTYDISC; 95610015Speter return (0); 95710015Speter case TIOCGWINSZ: 95810015Speter bzero(data, sizeof(struct winsize)); 95910015Speter return (0); 96010015Speter default: 96110015Speter return (ENOTTY); 96210015Speter } 96310015Speter } 96410015Speter /* 96510015Speter * Do the old-style ioctl compat routines... 96610015Speter */ 96710015Speter#if defined(COMPAT_43) 96810015Speter term = tp->t_termios; 96910015Speter oldcmd = cmd; 97010015Speter error = ttsetcompat(tp, &cmd, data, &term); 97110015Speter if (error != 0) 97210015Speter return (error); 97310015Speter if (cmd != oldcmd) 97410015Speter data = (caddr_t)&term; 97510015Speter#endif 97610015Speter /* 97710015Speter * Do the initial / lock state business 97810015Speter */ 97910015Speter if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { 98010015Speter int cc; 98110015Speter struct termios *dt = (struct termios *)data; 98210015Speter struct termios *lt = mynor & SI_CALLOUT_MASK 98310015Speter ? &pp->sp_lout : &pp->sp_lin; 98410015Speter 98550442Speter dt->c_iflag = (tp->t_iflag & lt->c_iflag) | 98650442Speter (dt->c_iflag & ~lt->c_iflag); 98750442Speter dt->c_oflag = (tp->t_oflag & lt->c_oflag) | 98850442Speter (dt->c_oflag & ~lt->c_oflag); 98950442Speter dt->c_cflag = (tp->t_cflag & lt->c_cflag) | 99050442Speter (dt->c_cflag & ~lt->c_cflag); 99150442Speter dt->c_lflag = (tp->t_lflag & lt->c_lflag) | 99250442Speter (dt->c_lflag & ~lt->c_lflag); 99310015Speter for (cc = 0; cc < NCCS; ++cc) 99410015Speter if (lt->c_cc[cc] != 0) 99510015Speter dt->c_cc[cc] = tp->t_cc[cc]; 99610015Speter if (lt->c_ispeed != 0) 99710015Speter dt->c_ispeed = tp->t_ispeed; 99810015Speter if (lt->c_ospeed != 0) 99910015Speter dt->c_ospeed = tp->t_ospeed; 100010015Speter } 100110015Speter 100210015Speter /* 100310015Speter * Block user-level writes to give the ttywait() 100410015Speter * a chance to completely drain for commands 100510015Speter * that require the port to be in a quiescent state. 100610015Speter */ 100710015Speter switch (cmd) { 100834832Speter case TIOCSETAW: 100934832Speter case TIOCSETAF: 101017396Speter case TIOCDRAIN: 101117396Speter#ifdef COMPAT_43 101217396Speter case TIOCSETP: 101317396Speter#endif 101410015Speter blocked++; /* block writes for ttywait() and siparam() */ 101510015Speter si_write_enable(pp, 0); 101610015Speter } 101710015Speter 1018130057Sphk error = ttyioctl(dev, cmd, data, flag, td); 1019130096Sphk pp->sp_hotchar = ttyldoptim(tp); 1020130057Sphk if (error != ENOTTY) 102110015Speter goto out; 102210015Speter 102310015Speter oldspl = spltty(); 102410015Speter 102550435Speter error = 0; 102610015Speter switch (cmd) { 102710015Speter case TIOCSBRK: 102816575Speter si_command(pp, SBREAK, SI_WAIT); 102910015Speter break; 103010015Speter case TIOCCBRK: 103116575Speter si_command(pp, EBREAK, SI_WAIT); 103210015Speter break; 103310015Speter case TIOCSDTR: 103410015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 103510015Speter break; 103610015Speter case TIOCCDTR: 103710015Speter (void) si_modem(pp, SET, 0); 103810015Speter break; 103910015Speter case TIOCMSET: 104010015Speter (void) si_modem(pp, SET, *(int *)data); 104110015Speter break; 104210015Speter case TIOCMBIS: 104310015Speter (void) si_modem(pp, BIS, *(int *)data); 104410015Speter break; 104510015Speter case TIOCMBIC: 104610015Speter (void) si_modem(pp, BIC, *(int *)data); 104710015Speter break; 104810015Speter case TIOCMGET: 104910015Speter *(int *)data = si_modem(pp, GET, 0); 105010015Speter break; 105110015Speter case TIOCMSDTRWAIT: 105210015Speter /* must be root since the wait applies to following logins */ 105393593Sjhb error = suser(td); 105450435Speter if (error == 0) 105550435Speter pp->sp_dtr_wait = *(int *)data * hz / 100; 105610015Speter break; 105710015Speter case TIOCMGDTRWAIT: 105810015Speter *(int *)data = pp->sp_dtr_wait * 100 / hz; 105910015Speter break; 106010015Speter default: 106110015Speter error = ENOTTY; 106210015Speter } 106310015Speter splx(oldspl); 106450435Speter 106510015Speterout: 106610015Speter DPRINT((pp, DBG_IOCTL|DBG_EXIT, "siioctl ret %d\n", error)); 106710015Speter if (blocked) 106810015Speter si_write_enable(pp, 1); 106910015Speter return(error); 107010015Speter} 107110015Speter 107210015Speter/* 107310015Speter * Handle the Specialix ioctls. All MUST be called via the CONTROL device 107410015Speter */ 107510015Speterstatic int 107683366Sjuliansi_Sioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 107710015Speter{ 107810015Speter struct si_softc *xsc; 107956498Speter struct si_port *xpp; 108010015Speter volatile struct si_reg *regp; 108110015Speter struct si_tcsi *dp; 108210044Speter struct si_pstat *sps; 108311872Sphk int *ip, error = 0; 108410015Speter int oldspl; 108510015Speter int card, port; 108610015Speter int mynor = minor(dev); 108710015Speter 108850016Snsayer DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,%lx,%x,%x)\n", 108950016Snsayer devtoname(dev), cmd, data, flag)); 109010015Speter 109110044Speter#if 1 109210044Speter DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT)); 109310044Speter DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB)); 109410044Speter DPRINT((0, DBG_IOCTL, "TCSI_TTY=%x\n", TCSI_TTY)); 109510044Speter#endif 109610044Speter 109710015Speter if (!IS_CONTROLDEV(mynor)) { 109810015Speter DPRINT((0, DBG_IOCTL|DBG_FAIL, "not called from control device!\n")); 109910015Speter return(ENODEV); 110010015Speter } 110110015Speter 110210015Speter oldspl = spltty(); /* better safe than sorry */ 110310015Speter 110410015Speter ip = (int *)data; 110510015Speter 110693593Sjhb#define SUCHECK if ((error = suser(td))) goto out 110710015Speter 110810015Speter switch (cmd) { 110910015Speter case TCSIPORTS: 111010015Speter *ip = si_Nports; 111110015Speter goto out; 111210015Speter case TCSIMODULES: 111310015Speter *ip = si_Nmodules; 111410015Speter goto out; 111510015Speter case TCSISDBG_ALL: 111610015Speter SUCHECK; 111710015Speter si_debug = *ip; 111810015Speter goto out; 111910015Speter case TCSIGDBG_ALL: 112010015Speter *ip = si_debug; 112110015Speter goto out; 112210015Speter default: 112310015Speter /* 112410015Speter * Check that a controller for this port exists 112510015Speter */ 112610044Speter 112710044Speter /* may also be a struct si_pstat, a superset of si_tcsi */ 112810044Speter 112910015Speter dp = (struct si_tcsi *)data; 113010044Speter sps = (struct si_pstat *)data; 113110015Speter card = dp->tc_card; 113256498Speter xsc = devclass_get_softc(si_devclass, card); /* check.. */ 113356498Speter if (xsc == NULL || xsc->sc_type == SIEMPTY) { 113410015Speter error = ENOENT; 113510015Speter goto out; 113610015Speter } 113710015Speter /* 113810015Speter * And check that a port exists 113910015Speter */ 114010015Speter port = dp->tc_port; 114110015Speter if (port < 0 || port >= xsc->sc_nport) { 114210015Speter error = ENOENT; 114310015Speter goto out; 114410015Speter } 114510015Speter xpp = xsc->sc_ports + port; 114610015Speter regp = (struct si_reg *)xsc->sc_maddr; 114710015Speter } 114810015Speter 114910015Speter switch (cmd) { 115010015Speter case TCSIDEBUG: 115110015Speter#ifdef SI_DEBUG 115210015Speter SUCHECK; 115310015Speter if (xpp->sp_debug) 115410015Speter xpp->sp_debug = 0; 115510015Speter else { 115610015Speter xpp->sp_debug = DBG_ALL; 115710015Speter DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n", 115810015Speter (xpp->sp_debug&DBG_ALL)?"ON":"OFF")); 115910015Speter } 116010015Speter break; 116110015Speter#else 116210015Speter error = ENODEV; 116310015Speter goto out; 116410015Speter#endif 116510015Speter case TCSISDBG_LEVEL: 116610015Speter case TCSIGDBG_LEVEL: 116710015Speter#ifdef SI_DEBUG 116810015Speter if (cmd == TCSIGDBG_LEVEL) { 116910015Speter dp->tc_dbglvl = xpp->sp_debug; 117010015Speter } else { 117110015Speter SUCHECK; 117210015Speter xpp->sp_debug = dp->tc_dbglvl; 117310015Speter } 117410015Speter break; 117510015Speter#else 117610015Speter error = ENODEV; 117710015Speter goto out; 117810015Speter#endif 117910015Speter case TCSIGRXIT: 118010015Speter dp->tc_int = regp->rx_int_count; 118110015Speter break; 118210015Speter case TCSIRXIT: 118310015Speter SUCHECK; 118410015Speter regp->rx_int_count = dp->tc_int; 118510015Speter break; 118610015Speter case TCSIGIT: 118710015Speter dp->tc_int = regp->int_count; 118810015Speter break; 118910015Speter case TCSIIT: 119010015Speter SUCHECK; 119110015Speter regp->int_count = dp->tc_int; 119210015Speter break; 119310044Speter case TCSISTATE: 119410044Speter dp->tc_int = xpp->sp_ccb->hi_ip; 119510015Speter break; 119610044Speter /* these next three use a different structure */ 119710044Speter case TCSI_PORT: 119810015Speter SUCHECK; 119934832Speter si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport)); 120010015Speter break; 120110044Speter case TCSI_CCB: 120210044Speter SUCHECK; 120350442Speter si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb)); 120410015Speter break; 120510044Speter case TCSI_TTY: 120610044Speter SUCHECK; 120734832Speter si_bcopy(xpp->sp_tty, &sps->tc_tty, sizeof(sps->tc_tty)); 120810015Speter break; 120910015Speter default: 121010015Speter error = EINVAL; 121110015Speter goto out; 121210015Speter } 121310015Speterout: 121410015Speter splx(oldspl); 121510015Speter return(error); /* success */ 121610015Speter} 121710015Speter 121810015Speter/* 121910015Speter * siparam() : Configure line params 122010015Speter * called at spltty(); 122110015Speter * this may sleep, does not flush, nor wait for drain, nor block writes 122210015Speter * caller must arrange this if it's important.. 122310015Speter */ 122412724Sphkstatic int 122556498Spetersiparam(struct tty *tp, struct termios *t) 122610015Speter{ 122756498Speter struct si_port *pp = TP2PP(tp); 122810015Speter volatile struct si_channel *ccbp; 122910015Speter int oldspl, cflag, iflag, oflag, lflag; 123010015Speter int error = 0; /* shutup gcc */ 123110015Speter int ispeed = 0; /* shutup gcc */ 123210015Speter int ospeed = 0; /* shutup gcc */ 123310161Speter BYTE val; 123410015Speter 123510015Speter DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t)); 123610015Speter cflag = t->c_cflag; 123710015Speter iflag = t->c_iflag; 123810015Speter oflag = t->c_oflag; 123910015Speter lflag = t->c_lflag; 124010044Speter DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n", 124110044Speter oflag, cflag, iflag, lflag)); 124210015Speter 124334832Speter /* XXX - if Jet host and SXDC module, use extended baud rates */ 124410015Speter 124510015Speter /* if not hung up.. */ 124610015Speter if (t->c_ospeed != 0) { 124710015Speter /* translate baud rate to firmware values */ 124810015Speter ospeed = ttspeedtab(t->c_ospeed, bdrates); 124910015Speter ispeed = t->c_ispeed ? 125010015Speter ttspeedtab(t->c_ispeed, bdrates) : ospeed; 125110015Speter 125210015Speter /* enforce legit baud rate */ 125310015Speter if (ospeed < 0 || ispeed < 0) 125410015Speter return (EINVAL); 125510015Speter } 125610015Speter 125710015Speter oldspl = spltty(); 125810015Speter 125910015Speter ccbp = pp->sp_ccb; 126010015Speter 126110161Speter /* ========== set hi_break ========== */ 126210161Speter val = 0; 126310161Speter if (iflag & IGNBRK) /* Breaks */ 126410161Speter val |= BR_IGN; 126510161Speter if (iflag & BRKINT) /* Interrupt on break? */ 126610161Speter val |= BR_INT; 126710161Speter if (iflag & PARMRK) /* Parity mark? */ 126810161Speter val |= BR_PARMRK; 126910161Speter if (iflag & IGNPAR) /* Ignore chars with parity errors? */ 127010161Speter val |= BR_PARIGN; 127110161Speter ccbp->hi_break = val; 127210161Speter 127310161Speter /* ========== set hi_csr ========== */ 127410015Speter /* if not hung up.. */ 127510015Speter if (t->c_ospeed != 0) { 127610015Speter /* Set I/O speeds */ 127710161Speter val = (ispeed << 4) | ospeed; 127810015Speter } 127910161Speter ccbp->hi_csr = val; 128010015Speter 128110161Speter /* ========== set hi_mr2 ========== */ 128210161Speter val = 0; 128310015Speter if (cflag & CSTOPB) /* Stop bits */ 128410161Speter val |= MR2_2_STOP; 128510015Speter else 128610161Speter val |= MR2_1_STOP; 128710161Speter /* 128810161Speter * Enable H/W RTS/CTS handshaking. The default TA/MTA is 128910161Speter * a DCE, hence the reverse sense of RTS and CTS 129010161Speter */ 129110161Speter /* Output Flow - RTS must be raised before data can be sent */ 129210161Speter if (cflag & CCTS_OFLOW) 129310161Speter val |= MR2_RTSCONT; 129410161Speter 129516575Speter ccbp->hi_mr2 = val; 129610161Speter 129710161Speter /* ========== set hi_mr1 ========== */ 129810161Speter val = 0; 129910015Speter if (!(cflag & PARENB)) /* Parity */ 130010161Speter val |= MR1_NONE; 130110015Speter else 130210161Speter val |= MR1_WITH; 130310015Speter if (cflag & PARODD) 130410161Speter val |= MR1_ODD; 130510015Speter 130610015Speter if ((cflag & CS8) == CS8) { /* 8 data bits? */ 130710161Speter val |= MR1_8_BITS; 130810015Speter } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 130910161Speter val |= MR1_7_BITS; 131010015Speter } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 131110161Speter val |= MR1_6_BITS; 131210015Speter } else { /* Must be 5 */ 131310161Speter val |= MR1_5_BITS; 131410015Speter } 131510161Speter /* 131610161Speter * Enable H/W RTS/CTS handshaking. The default TA/MTA is 131710161Speter * a DCE, hence the reverse sense of RTS and CTS 131810161Speter */ 131910161Speter /* Input Flow - CTS is raised when port is ready to receive data */ 132010161Speter if (cflag & CRTS_IFLOW) 132110161Speter val |= MR1_CTSCONT; 132210015Speter 132310161Speter ccbp->hi_mr1 = val; 132410161Speter 132510161Speter /* ========== set hi_mask ========== */ 132610161Speter val = 0xff; 132710161Speter if ((cflag & CS8) == CS8) { /* 8 data bits? */ 132810161Speter val &= 0xFF; 132910161Speter } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 133010161Speter val &= 0x7F; 133110161Speter } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 133210161Speter val &= 0x3F; 133310161Speter } else { /* Must be 5 */ 133410161Speter val &= 0x1F; 133510161Speter } 133610015Speter if (iflag & ISTRIP) 133710161Speter val &= 0x7F; 133810015Speter 133910161Speter ccbp->hi_mask = val; 134010161Speter 134110161Speter /* ========== set hi_prtcl ========== */ 134256592Speter val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */ 134310161Speter if (iflag & IXANY) 134410161Speter val |= SP_TANY; 134510161Speter if (iflag & IXON) 134610161Speter val |= SP_TXEN; 134710161Speter if (iflag & IXOFF) 134810161Speter val |= SP_RXEN; 134910161Speter if (iflag & INPCK) 135010161Speter val |= SP_PAEN; 135110015Speter 135210161Speter ccbp->hi_prtcl = val; 135310161Speter 135410161Speter 135510161Speter /* ========== set hi_{rx|tx}{on|off} ========== */ 135610161Speter /* XXX: the card TOTALLY shields us from the flow control... */ 135710015Speter ccbp->hi_txon = t->c_cc[VSTART]; 135810015Speter ccbp->hi_txoff = t->c_cc[VSTOP]; 135910015Speter 136010015Speter ccbp->hi_rxon = t->c_cc[VSTART]; 136110015Speter ccbp->hi_rxoff = t->c_cc[VSTOP]; 136210015Speter 136310161Speter /* ========== send settings to the card ========== */ 136410015Speter /* potential sleep here */ 136510015Speter if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */ 136610015Speter si_command(pp, LOPEN, SI_WAIT); /* open it */ 136710015Speter else 136810015Speter si_command(pp, CONFIG, SI_WAIT); /* change params */ 136910015Speter 137010161Speter /* ========== set DTR etc ========== */ 137110015Speter /* Hangup if ospeed == 0 */ 137210015Speter if (t->c_ospeed == 0) { 137310015Speter (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 137410015Speter } else { 137510015Speter /* 137610015Speter * If the previous speed was 0, may need to re-enable 137734832Speter * the modem signals 137834832Speter */ 137910015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 138010015Speter } 138110015Speter 138210044Speter DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x\n", 138310044Speter ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break)); 138410015Speter 138510015Speter splx(oldspl); 138610015Speter return(error); 138710015Speter} 138810015Speter 138910015Speter/* 139010015Speter * Enable or Disable the writes to this channel... 139110015Speter * "state" -> enabled = 1; disabled = 0; 139210015Speter */ 139310015Speterstatic void 139456498Spetersi_write_enable(struct si_port *pp, int state) 139510015Speter{ 139610015Speter int oldspl; 139710015Speter 139810015Speter oldspl = spltty(); 139910015Speter 140010015Speter if (state) { 140110015Speter pp->sp_state &= ~SS_BLOCKWRITE; 140210015Speter if (pp->sp_state & SS_WAITWRITE) { 140310015Speter pp->sp_state &= ~SS_WAITWRITE; 140410015Speter /* thunder away! */ 1405111748Sdes wakeup(pp); 140610015Speter } 140710015Speter } else { 140810015Speter pp->sp_state |= SS_BLOCKWRITE; 140910015Speter } 141010015Speter 141110015Speter splx(oldspl); 141210015Speter} 141310015Speter 141410015Speter/* 141510015Speter * Set/Get state of modem control lines. 141610015Speter * Due to DCE-like behaviour of the adapter, some signals need translation: 141710015Speter * TIOCM_DTR DSR 141810015Speter * TIOCM_RTS CTS 141910015Speter */ 142010015Speterstatic int 142156498Spetersi_modem(struct si_port *pp, enum si_mctl cmd, int bits) 142210015Speter{ 142310015Speter volatile struct si_channel *ccbp; 142410015Speter int x; 142510015Speter 142610015Speter DPRINT((pp, DBG_ENTRY|DBG_MODEM, "si_modem(%x,%s,%x)\n", pp, si_mctl2str(cmd), bits)); 142710015Speter ccbp = pp->sp_ccb; /* Find channel address */ 142810015Speter switch (cmd) { 142910015Speter case GET: 143010015Speter x = ccbp->hi_ip; 143110015Speter bits = TIOCM_LE; 143210015Speter if (x & IP_DCD) bits |= TIOCM_CAR; 143310015Speter if (x & IP_DTR) bits |= TIOCM_DTR; 143410015Speter if (x & IP_RTS) bits |= TIOCM_RTS; 143510015Speter if (x & IP_RI) bits |= TIOCM_RI; 143610015Speter return(bits); 143710015Speter case SET: 143810015Speter ccbp->hi_op &= ~(OP_DSR|OP_CTS); 143910015Speter /* fall through */ 144010015Speter case BIS: 144110015Speter x = 0; 144210015Speter if (bits & TIOCM_DTR) 144310015Speter x |= OP_DSR; 144410015Speter if (bits & TIOCM_RTS) 144510015Speter x |= OP_CTS; 144610015Speter ccbp->hi_op |= x; 144710015Speter break; 144810015Speter case BIC: 144910015Speter if (bits & TIOCM_DTR) 145010015Speter ccbp->hi_op &= ~OP_DSR; 145110015Speter if (bits & TIOCM_RTS) 145210015Speter ccbp->hi_op &= ~OP_CTS; 145310015Speter } 145410015Speter return 0; 145510015Speter} 145610015Speter 145710015Speter/* 145810015Speter * Handle change of modem state 145910015Speter */ 146010015Speterstatic void 146156498Spetersi_modem_state(struct si_port *pp, struct tty *tp, int hi_ip) 146210015Speter{ 146310015Speter /* if a modem dev */ 146410015Speter if (hi_ip & IP_DCD) { 146550442Speter if (!(pp->sp_last_hi_ip & IP_DCD)) { 146610015Speter DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n", 146710015Speter tp->t_line)); 1468130077Sphk (void)ttyld_modem(tp, 1); 146910015Speter } 147010015Speter } else { 147110015Speter if (pp->sp_last_hi_ip & IP_DCD) { 147210015Speter DPRINT((pp, DBG_INTR, "modem carr off\n")); 1473130077Sphk if (ttyld_modem(tp, 0)) 147410015Speter (void) si_modem(pp, SET, 0); 147510015Speter } 147610015Speter } 147710015Speter pp->sp_last_hi_ip = hi_ip; 147810015Speter 147910015Speter} 148010015Speter 148110015Speter/* 148210015Speter * Poller to catch missed interrupts. 148312174Speter * 148412496Speter * Note that the SYSV Specialix drivers poll at 100 times per second to get 148512496Speter * better response. We could really use a "periodic" version timeout(). :-) 148610015Speter */ 148710015Speter#ifdef POLL 148810708Speterstatic void 148910015Spetersi_poll(void *nothing) 149010015Speter{ 149156498Speter struct si_softc *sc; 149256498Speter int i; 149310015Speter volatile struct si_reg *regp; 149456498Speter struct si_port *pp; 149512174Speter int lost, oldspl, port; 149610015Speter 149710015Speter DPRINT((0, DBG_POLL, "si_poll()\n")); 149811609Speter oldspl = spltty(); 149910015Speter if (in_intr) 150010015Speter goto out; 150110015Speter lost = 0; 150256498Speter for (i = 0; i < si_numunits; i++) { 150356498Speter sc = devclass_get_softc(si_devclass, i); 150456498Speter if (sc == NULL || sc->sc_type == SIEMPTY) 150510015Speter continue; 150610015Speter regp = (struct si_reg *)sc->sc_maddr; 150734832Speter 150810015Speter /* 150910015Speter * See if there has been a pending interrupt for 2 seconds 151033395Speter * or so. The test (int_scounter >= 200) won't correspond 151110015Speter * to 2 seconds if int_count gets changed. 151210015Speter */ 151310015Speter if (regp->int_pending != 0) { 151410015Speter if (regp->int_scounter >= 200 && 151510015Speter regp->initstat == 1) { 151612174Speter printf("si%d: lost intr\n", i); 151710015Speter lost++; 151810015Speter } 151910015Speter } else { 152010015Speter regp->int_scounter = 0; 152110015Speter } 152210015Speter 152312174Speter /* 152412174Speter * gripe about no input flow control.. 152512174Speter */ 152612174Speter pp = sc->sc_ports; 152712174Speter for (port = 0; port < sc->sc_nport; pp++, port++) { 152812174Speter if (pp->sp_delta_overflows > 0) { 152912174Speter printf("si%d: %d tty level buffer overflows\n", 153012174Speter i, pp->sp_delta_overflows); 153112174Speter pp->sp_delta_overflows = 0; 153212174Speter } 153312174Speter } 153410015Speter } 153517547Speter if (lost || si_realpoll) 153656498Speter si_intr(NULL); /* call intr with fake vector */ 153711609Speterout: 153810015Speter splx(oldspl); 153910015Speter 154015639Speter timeout(si_poll, (caddr_t)0L, si_pollrate); 154110015Speter} 154210015Speter#endif /* ifdef POLL */ 154310015Speter 154410015Speter/* 154510015Speter * The interrupt handler polls ALL ports on ALL adapters each time 154610015Speter * it is called. 154710015Speter */ 154810015Speter 154912496Speterstatic BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */ 155034832Speterstatic BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */ 155110015Speter 155256505Spetervoid 155356498Spetersi_intr(void *arg) 155410015Speter{ 155556498Speter struct si_softc *sc; 155656498Speter struct si_port *pp; 155710015Speter volatile struct si_channel *ccbp; 155856498Speter struct tty *tp; 155910015Speter volatile caddr_t maddr; 156011872Sphk BYTE op, ip; 156112174Speter int x, card, port, n, i, isopen; 156210015Speter volatile BYTE *z; 156310015Speter BYTE c; 156410015Speter 156556498Speter sc = arg; 156656498Speter 156756498Speter DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n")); 156856498Speter if (in_intr) 156910708Speter return; 157010015Speter in_intr = 1; 157110015Speter 157210015Speter /* 157310015Speter * When we get an int we poll all the channels and do ALL pending 157410015Speter * work, not just the first one we find. This allows all cards to 157510015Speter * share the same vector. 157634832Speter * 157734832Speter * XXX - But if we're sharing the vector with something that's NOT 157834832Speter * a SI/XIO/SX card, we may be making more work for ourselves. 157910015Speter */ 158056498Speter for (card = 0; card < si_numunits; card++) { 158156498Speter sc = devclass_get_softc(si_devclass, card); 158256498Speter if (sc == NULL || sc->sc_type == SIEMPTY) 158310015Speter continue; 158412174Speter 158512174Speter /* 158612174Speter * First, clear the interrupt 158712174Speter */ 158810015Speter switch(sc->sc_type) { 158934832Speter case SIHOST: 159010015Speter maddr = sc->sc_maddr; 159110015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 159210015Speter /* flag nothing pending */ 159310015Speter *(maddr+SIINTCL) = 0x00; /* Set IRQ clear */ 159410015Speter *(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */ 159510015Speter break; 159610015Speter case SIHOST2: 159710015Speter maddr = sc->sc_maddr; 159810015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 159910015Speter *(maddr+SIPLIRQCLR) = 0x00; 160010015Speter *(maddr+SIPLIRQCLR) = 0x10; 160110015Speter break; 160233395Speter case SIPCI: 160333395Speter maddr = sc->sc_maddr; 160433395Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 160533395Speter *(maddr+SIPCIINTCL) = 0x0; 160633395Speter break; 160734832Speter case SIJETPCI: /* fall through to JETISA case */ 160833395Speter case SIJETISA: 160933395Speter maddr = sc->sc_maddr; 161033395Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 161133395Speter *(maddr+SIJETINTCL) = 0x0; 161233395Speter break; 161310015Speter case SIEISA: 161410015Speter maddr = sc->sc_maddr; 161510015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 161656498Speter (void)inb(sc->sc_iobase + 3); 161710015Speter break; 161810015Speter case SIEMPTY: 161910015Speter default: 162010015Speter continue; 162110015Speter } 162210015Speter ((volatile struct si_reg *)maddr)->int_scounter = 0; 162310015Speter 162412174Speter /* 162512174Speter * check each port 162612174Speter */ 162750442Speter for (pp = sc->sc_ports, port = 0; port < sc->sc_nport; 162834832Speter pp++, port++) { 162910015Speter ccbp = pp->sp_ccb; 163010015Speter tp = pp->sp_tty; 163110015Speter 163210015Speter /* 163310015Speter * See if a command has completed ? 163410015Speter */ 163510015Speter if (ccbp->hi_stat != pp->sp_pend) { 163610015Speter DPRINT((pp, DBG_INTR, 163734735Speter "si_intr hi_stat = 0x%x, pend = %d\n", 163810015Speter ccbp->hi_stat, pp->sp_pend)); 163910015Speter switch(pp->sp_pend) { 164010015Speter case LOPEN: 164110015Speter case MPEND: 164210015Speter case MOPEN: 164310015Speter case CONFIG: 164416575Speter case SBREAK: 164516575Speter case EBREAK: 164610015Speter pp->sp_pend = ccbp->hi_stat; 164710015Speter /* sleeping in si_command */ 164810015Speter wakeup(&pp->sp_state); 164910015Speter break; 165010015Speter default: 165110015Speter pp->sp_pend = ccbp->hi_stat; 165210015Speter } 165334832Speter } 165410015Speter 165510015Speter /* 165610015Speter * Continue on if it's closed 165710015Speter */ 165810015Speter if (ccbp->hi_stat == IDLE_CLOSE) { 165910015Speter continue; 166010015Speter } 166110015Speter 166210015Speter /* 166310015Speter * Do modem state change if not a local device 166410015Speter */ 166510015Speter si_modem_state(pp, tp, ccbp->hi_ip); 166610015Speter 166710015Speter /* 166834832Speter * Check to see if we should 'receive' characters. 166912174Speter */ 167012174Speter if (tp->t_state & TS_CONNECTED && 167112174Speter tp->t_state & TS_ISOPEN) 167212174Speter isopen = 1; 167312174Speter else 167412174Speter isopen = 0; 167512174Speter 167612174Speter /* 167716575Speter * Do input break processing 167810015Speter */ 167910015Speter if (ccbp->hi_state & ST_BREAK) { 168012174Speter if (isopen) { 1681130077Sphk ttyld_rint(tp, TTY_BI); 168210015Speter } 168310015Speter ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */ 168410015Speter DPRINT((pp, DBG_INTR, "si_intr break\n")); 168510015Speter } 168610015Speter 168710015Speter /* 168812174Speter * Do RX stuff - if not open then dump any characters. 168912174Speter * XXX: This is VERY messy and needs to be cleaned up. 169012174Speter * 169112174Speter * XXX: can we leave data in the host adapter buffer 169212174Speter * when the clists are full? That may be dangerous 169312174Speter * if the user cannot get an interrupt signal through. 169410015Speter */ 169510015Speter 169612174Speter more_rx: /* XXX Sorry. the nesting was driving me bats! :-( */ 169712174Speter 169812174Speter if (!isopen) { 169910015Speter ccbp->hi_rxopos = ccbp->hi_rxipos; 170012174Speter goto end_rx; 170112174Speter } 170210015Speter 170312174Speter /* 170415640Speter * If the tty input buffers are blocked, stop emptying 170515640Speter * the incoming buffers and let the auto flow control 170615640Speter * assert.. 170715640Speter */ 170815640Speter if (tp->t_state & TS_TBLOCK) { 170915640Speter goto end_rx; 171015640Speter } 171115640Speter 171215640Speter /* 171312174Speter * Process read characters if not skipped above 171412174Speter */ 171515640Speter op = ccbp->hi_rxopos; 171615640Speter ip = ccbp->hi_rxipos; 171715640Speter c = ip - op; 171812174Speter if (c == 0) { 171912174Speter goto end_rx; 172012174Speter } 172110015Speter 172212174Speter n = c & 0xff; 172315640Speter if (n > 250) 172415640Speter n = 250; 172512174Speter 172612174Speter DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 172710015Speter n, op, ip)); 172810015Speter 172912174Speter /* 173012174Speter * Suck characters out of host card buffer into the 173112174Speter * "input staging buffer" - so that we dont leave the 173212174Speter * host card in limbo while we're possibly echoing 173312174Speter * characters and possibly flushing input inside the 173412174Speter * ldisc l_rint() routine. 173512174Speter */ 173612496Speter if (n <= SI_BUFFERSIZE - op) { 173710015Speter 173812174Speter DPRINT((pp, DBG_INTR, "\tsingle copy\n")); 173912174Speter z = ccbp->hi_rxbuf + op; 174050442Speter si_vbcopy(z, si_rxbuf, n); 174110015Speter 174212174Speter op += n; 174312174Speter } else { 174412496Speter x = SI_BUFFERSIZE - op; 174510015Speter 174612174Speter DPRINT((pp, DBG_INTR, "\tdouble part 1 %d\n", x)); 174712174Speter z = ccbp->hi_rxbuf + op; 174850442Speter si_vbcopy(z, si_rxbuf, x); 174910015Speter 175034832Speter DPRINT((pp, DBG_INTR, "\tdouble part 2 %d\n", 175134832Speter n - x)); 175212174Speter z = ccbp->hi_rxbuf; 175350442Speter si_vbcopy(z, si_rxbuf + x, n - x); 175410015Speter 175512174Speter op += n; 175612174Speter } 175710015Speter 175812174Speter /* clear collected characters from buffer */ 175912174Speter ccbp->hi_rxopos = op; 176012174Speter 176112174Speter DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 176210015Speter n, op, ip)); 176310015Speter 176412174Speter /* 176512174Speter * at this point... 176612174Speter * n = number of chars placed in si_rxbuf 176712174Speter */ 176810015Speter 176912174Speter /* 177012174Speter * Avoid the grotesquely inefficient lineswitch 177112174Speter * routine (ttyinput) in "raw" mode. It usually 177212174Speter * takes about 450 instructions (that's without 177312174Speter * canonical processing or echo!). slinput is 177412174Speter * reasonably fast (usually 40 instructions 177512174Speter * plus call overhead). 177612174Speter */ 177712174Speter if (tp->t_state & TS_CAN_BYPASS_L_RINT) { 177810015Speter 177912174Speter /* block if the driver supports it */ 178050442Speter if (tp->t_rawq.c_cc + n >= SI_I_HIGH_WATER && 178150442Speter (tp->t_cflag & CRTS_IFLOW || 178250442Speter tp->t_iflag & IXOFF) && 178350442Speter !(tp->t_state & TS_TBLOCK)) 178412174Speter ttyblock(tp); 178510015Speter 178612174Speter tk_nin += n; 178712174Speter tk_rawcc += n; 178812174Speter tp->t_rawcc += n; 178912174Speter 179012174Speter pp->sp_delta_overflows += 179112174Speter b_to_q((char *)si_rxbuf, n, &tp->t_rawq); 179212174Speter 179312174Speter ttwakeup(tp); 179450442Speter if (tp->t_state & TS_TTSTOP && 179550442Speter (tp->t_iflag & IXANY || 179650442Speter tp->t_cc[VSTART] == tp->t_cc[VSTOP])) { 179712174Speter tp->t_state &= ~TS_TTSTOP; 179812174Speter tp->t_lflag &= ~FLUSHO; 179912174Speter si_start(tp); 180012174Speter } 180112174Speter } else { 180212174Speter /* 180312174Speter * It'd be nice to not have to go through the 180412174Speter * function call overhead for each char here. 180512174Speter * It'd be nice to block input it, saving a 180612174Speter * loop here and the call/return overhead. 180712174Speter */ 180812174Speter for(x = 0; x < n; x++) { 180912174Speter i = si_rxbuf[x]; 1810130077Sphk if (ttyld_rint(tp, i) 181112174Speter == -1) { 181212174Speter pp->sp_delta_overflows++; 181310015Speter } 181412174Speter } 181512174Speter } 181612174Speter goto more_rx; /* try for more until RXbuf is empty */ 181710015Speter 181812174Speter end_rx: /* XXX: Again, sorry about the gotos.. :-) */ 181910015Speter 182010015Speter /* 182110015Speter * Do TX stuff 182210015Speter */ 1823130077Sphk ttyld_start(tp); 182410015Speter 182510015Speter } /* end of for (all ports on this controller) */ 182610015Speter } /* end of for (all controllers) */ 182710015Speter 182811609Speter in_intr = 0; 182956498Speter DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n")); 183010015Speter} 183110015Speter 183210015Speter/* 183310015Speter * Nudge the transmitter... 183412174Speter * 183512174Speter * XXX: I inherited some funny code here. It implies the host card only 183612174Speter * interrupts when the transmit buffer reaches the low-water-mark, and does 183712174Speter * not interrupt when it's actually hits empty. In some cases, we have 183812174Speter * processes waiting for complete drain, and we need to simulate an interrupt 183912174Speter * about when we think the buffer is going to be empty (and retry if not). 184012174Speter * I really am not certain about this... I *need* the hardware manuals. 184110015Speter */ 184210015Speterstatic void 184356498Spetersi_start(struct tty *tp) 184410015Speter{ 184510015Speter struct si_port *pp; 184610015Speter volatile struct si_channel *ccbp; 184756498Speter struct clist *qp; 184810015Speter BYTE ipos; 184910015Speter int nchar; 185010015Speter int oldspl, count, n, amount, buffer_full; 185110015Speter 185210015Speter oldspl = spltty(); 185310015Speter 185410015Speter qp = &tp->t_outq; 185510015Speter pp = TP2PP(tp); 185610015Speter 185710015Speter DPRINT((pp, DBG_ENTRY|DBG_START, 185810015Speter "si_start(%x) t_state %x sp_state %x t_outq.c_cc %d\n", 185910015Speter tp, tp->t_state, pp->sp_state, qp->c_cc)); 186010015Speter 186110015Speter if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP)) 186210015Speter goto out; 186310015Speter 186410015Speter buffer_full = 0; 186510015Speter ccbp = pp->sp_ccb; 186610015Speter 186710015Speter count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 186810015Speter DPRINT((pp, DBG_START, "count %d\n", (BYTE)count)); 186910015Speter 187010015Speter while ((nchar = qp->c_cc) > 0) { 187110015Speter if ((BYTE)count >= 255) { 187210015Speter buffer_full++; 187310015Speter break; 187410015Speter } 187510015Speter amount = min(nchar, (255 - (BYTE)count)); 187610015Speter ipos = (unsigned int)ccbp->hi_txipos; 187734832Speter n = q_to_b(&tp->t_outq, si_txbuf, amount); 187810015Speter /* will it fit in one lump? */ 187934832Speter if ((SI_BUFFERSIZE - ipos) >= n) { 188050442Speter si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n); 188110015Speter } else { 188250442Speter si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], 188334832Speter SI_BUFFERSIZE - ipos); 188450442Speter si_bcopyv(si_txbuf + (SI_BUFFERSIZE - ipos), 188550442Speter &ccbp->hi_txbuf[0], n - (SI_BUFFERSIZE - ipos)); 188610015Speter } 188710015Speter ccbp->hi_txipos += n; 188810015Speter count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 188910015Speter } 189010015Speter 189110015Speter if (count != 0 && nchar == 0) { 189210015Speter tp->t_state |= TS_BUSY; 189310015Speter } else { 189410015Speter tp->t_state &= ~TS_BUSY; 189510015Speter } 189610015Speter 189710015Speter /* wakeup time? */ 189810015Speter ttwwakeup(tp); 189910015Speter 190010015Speter DPRINT((pp, DBG_START, "count %d, nchar %d, tp->t_state 0x%x\n", 190110015Speter (BYTE)count, nchar, tp->t_state)); 190210015Speter 190334735Speter if (tp->t_state & TS_BUSY) 190410015Speter { 190510015Speter int time; 190610015Speter 190734735Speter time = ttspeedtab(tp->t_ospeed, chartimes); 190834735Speter 190934735Speter if (time > 0) { 191034735Speter if (time < nchar) 191134735Speter time = nchar / time; 191234735Speter else 191334735Speter time = 2; 191410015Speter } else { 191534735Speter DPRINT((pp, DBG_START, 191634735Speter "bad char time value! %d\n", time)); 191734735Speter time = hz/10; 191810015Speter } 191910015Speter 192010015Speter if ((pp->sp_state & (SS_LSTART|SS_INLSTART)) == SS_LSTART) { 192129677Sgibbs untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 192210015Speter } else { 192310015Speter pp->sp_state |= SS_LSTART; 192410015Speter } 192510015Speter DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time)); 192629677Sgibbs pp->lstart_ch = timeout(si_lstart, (caddr_t)pp, time); 192710015Speter } 192810015Speter 192910015Speterout: 193010015Speter splx(oldspl); 193110015Speter DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n")); 193210015Speter} 193310015Speter 193410015Speter/* 193510015Speter * Note: called at splsoftclock from the timeout code 193610015Speter * This has to deal with two things... cause wakeups while waiting for 193710015Speter * tty drains on last process exit, and call l_start at about the right 193810015Speter * time for protocols like ppp. 193910015Speter */ 194010015Speterstatic void 194125047Sbdesi_lstart(void *arg) 194210015Speter{ 194356498Speter struct si_port *pp = arg; 194456498Speter struct tty *tp; 194510015Speter int oldspl; 194610015Speter 194710015Speter DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n", 194810015Speter pp, pp->sp_state)); 194910015Speter 195010015Speter oldspl = spltty(); 195110015Speter 195210015Speter if ((pp->sp_state & SS_OPEN) == 0 || (pp->sp_state & SS_LSTART) == 0) { 195310015Speter splx(oldspl); 195410015Speter return; 195510015Speter } 195610015Speter pp->sp_state &= ~SS_LSTART; 195710015Speter pp->sp_state |= SS_INLSTART; 195810015Speter 195910015Speter tp = pp->sp_tty; 196010015Speter 196110015Speter /* deal with the process exit case */ 196210015Speter ttwwakeup(tp); 196310015Speter 196412174Speter /* nudge protocols - eg: ppp */ 1965130077Sphk ttyld_start(tp); 196610015Speter 196710015Speter pp->sp_state &= ~SS_INLSTART; 196810015Speter splx(oldspl); 196910015Speter} 197010015Speter 197110015Speter/* 197210015Speter * Stop output on a line. called at spltty(); 197310015Speter */ 1974105215Sphkstatic void 197556498Spetersi_stop(struct tty *tp, int rw) 197610015Speter{ 197710015Speter volatile struct si_channel *ccbp; 197810015Speter struct si_port *pp; 197910015Speter 198010015Speter pp = TP2PP(tp); 198110015Speter ccbp = pp->sp_ccb; 198210015Speter 198351654Sphk DPRINT((TP2PP(tp), DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw)); 198410015Speter 198510015Speter /* XXX: must check (rw & FWRITE | FREAD) etc flushing... */ 198610015Speter if (rw & FWRITE) { 198710015Speter /* what level are we meant to be flushing anyway? */ 198810015Speter if (tp->t_state & TS_BUSY) { 198910015Speter si_command(TP2PP(tp), WFLUSH, SI_NOWAIT); 199010015Speter tp->t_state &= ~TS_BUSY; 199110015Speter ttwwakeup(tp); /* Bruce???? */ 199210015Speter } 199310015Speter } 199412174Speter#if 1 /* XXX: this doesn't work right yet.. */ 199512174Speter /* XXX: this may have been failing because we used to call l_rint() 199612174Speter * while we were looping based on these two counters. Now, we collect 199712174Speter * the data and then loop stuffing it into l_rint(), making this 199812174Speter * useless. Should we cause this to blow away the staging buffer? 199912174Speter */ 200010015Speter if (rw & FREAD) { 200110015Speter ccbp->hi_rxopos = ccbp->hi_rxipos; 200210015Speter } 200310015Speter#endif 200410015Speter} 200510015Speter 200610015Speter/* 200734832Speter * Issue a command to the host card CPU. 200810015Speter */ 200910015Speter 201010015Speterstatic void 201156498Spetersi_command(struct si_port *pp, int cmd, int waitflag) 201210015Speter{ 201310015Speter int oldspl; 201410015Speter volatile struct si_channel *ccbp = pp->sp_ccb; 201510015Speter int x; 201610015Speter 201710015Speter DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%x,%d): hi_stat 0x%x\n", 201810015Speter pp, cmd, waitflag, ccbp->hi_stat)); 201910015Speter 202010015Speter oldspl = spltty(); /* Keep others out */ 202110015Speter 202210015Speter /* wait until it's finished what it was doing.. */ 202316575Speter /* XXX: sits in IDLE_BREAK until something disturbs it or break 202416575Speter * is turned off. */ 202510015Speter while((x = ccbp->hi_stat) != IDLE_OPEN && 202610015Speter x != IDLE_CLOSE && 202716575Speter x != IDLE_BREAK && 202810015Speter x != cmd) { 202910015Speter if (in_intr) { /* Prevent sleep in intr */ 203010015Speter DPRINT((pp, DBG_PARAM, 203110015Speter "cmd intr collision - completing %d\trequested %d\n", 203210015Speter x, cmd)); 203310015Speter splx(oldspl); 203410015Speter return; 203510015Speter } else if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 203610015Speter "sicmd1", 1)) { 203710015Speter splx(oldspl); 203810015Speter return; 203910015Speter } 204010015Speter } 204116575Speter /* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */ 204210015Speter 204310015Speter /* if there was a pending command, cause a state-change wakeup */ 204416575Speter switch(pp->sp_pend) { 204516575Speter case LOPEN: 204616575Speter case MPEND: 204716575Speter case MOPEN: 204816575Speter case CONFIG: 204916575Speter case SBREAK: 205016575Speter case EBREAK: 205116575Speter wakeup(&pp->sp_state); 205216575Speter break; 205316575Speter default: 205416575Speter break; 205510015Speter } 205610015Speter 205710015Speter pp->sp_pend = cmd; /* New command pending */ 205810015Speter ccbp->hi_stat = cmd; /* Post it */ 205910015Speter 206010015Speter if (waitflag) { 206110015Speter if (in_intr) { /* If in interrupt handler */ 206210015Speter DPRINT((pp, DBG_PARAM, 206310015Speter "attempt to sleep in si_intr - cmd req %d\n", 206410015Speter cmd)); 206510015Speter splx(oldspl); 206610015Speter return; 206716575Speter } else while(ccbp->hi_stat != IDLE_OPEN && 206816575Speter ccbp->hi_stat != IDLE_BREAK) { 206910015Speter if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 207010015Speter "sicmd2", 0)) 207110015Speter break; 207210015Speter } 207310015Speter } 207410015Speter splx(oldspl); 207510015Speter} 207610015Speter 207710015Speter 207810015Speter#ifdef SI_DEBUG 207913353Speter 208056505Spetervoid 208113353Spetersi_dprintf(struct si_port *pp, int flags, const char *fmt, ...) 208210015Speter{ 208313353Speter va_list ap; 208413630Sphk 208510015Speter if ((pp == NULL && (si_debug&flags)) || 208610015Speter (pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) { 208734832Speter if (pp != NULL) 208834832Speter printf("%ci%d(%d): ", 's', 208946679Sphk (int)SI_CARD(minor(pp->sp_tty->t_dev)), 209046679Sphk (int)SI_PORT(minor(pp->sp_tty->t_dev))); 209113630Sphk va_start(ap, fmt); 209213630Sphk vprintf(fmt, ap); 209313353Speter va_end(ap); 209410015Speter } 209510015Speter} 209610015Speter 209710015Speterstatic char * 209856498Spetersi_mctl2str(enum si_mctl cmd) 209910015Speter{ 210010015Speter switch (cmd) { 210134832Speter case GET: 210234832Speter return("GET"); 210334832Speter case SET: 210434832Speter return("SET"); 210534832Speter case BIS: 210634832Speter return("BIS"); 210734832Speter case BIC: 210834832Speter return("BIC"); 210910015Speter } 211010015Speter return("BAD"); 211110015Speter} 211212502Sjulian 211312624Speter#endif /* DEBUG */ 211412502Sjulian 211534832Speterstatic char * 211656498Spetersi_modulename(int host_type, int uart_type) 211734832Speter{ 211834832Speter switch (host_type) { 211934832Speter /* Z280 based cards */ 212050442Speter case SIEISA: 212150442Speter case SIHOST2: 212234832Speter case SIHOST: 212334832Speter case SIPCI: 212434832Speter switch (uart_type) { 212534832Speter case 0: 212634832Speter return(" (XIO)"); 212734832Speter case 1: 212834832Speter return(" (SI)"); 212934832Speter } 213034832Speter break; 213134832Speter /* T225 based hosts */ 213234832Speter case SIJETPCI: 213334832Speter case SIJETISA: 213434832Speter switch (uart_type) { 213534832Speter case 0: 213634832Speter return(" (SI)"); 213734832Speter case 40: 213834832Speter return(" (XIO)"); 213936856Sphk case 72: 214036856Sphk return(" (SXDC)"); 214134832Speter } 214234832Speter break; 214334832Speter } 214434832Speter return(""); 214534832Speter} 2146