si.c revision 130077
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 130077 2004-06-04 16:02:56Z 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> 5024207Sbde#if defined(COMPAT_43) || defined(COMPAT_SUNOS) 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 si_disc_optim(struct tty *tp, struct termios *t,struct si_port *pp); 10356498Speterstatic void sihardclose(struct si_port *pp); 10456498Speterstatic void sidtrwakeup(void *chan); 10510015Speter 10656505Speter#ifdef SI_DEBUG 10756505Speterstatic char *si_mctl2str(enum si_mctl cmd); 10856505Speter#endif 10956505Speter 11056498Speterstatic int siparam(struct tty *, struct termios *); 11110015Speter 11256498Speterstatic void si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip); 11356498Speterstatic char * si_modulename(int host_type, int uart_type); 11410708Speter 11512675Sjulianstatic d_open_t siopen; 11612675Sjulianstatic d_close_t siclose; 11712675Sjulianstatic d_write_t siwrite; 11812675Sjulianstatic d_ioctl_t siioctl; 11912675Sjulian 12047625Sphkstatic struct cdevsw si_cdevsw = { 121126080Sphk .d_version = D_VERSION, 122111815Sphk .d_open = siopen, 123111815Sphk .d_close = siclose, 124111815Sphk .d_write = siwrite, 125111815Sphk .d_ioctl = siioctl, 126111815Sphk .d_name = "si", 127126080Sphk .d_flags = D_TTY | D_NEEDGIANT, 12838485Sbde}; 12912675Sjulian 13010962Speterstatic int si_Nports; 13110962Speterstatic int si_Nmodules; 13210962Speterstatic int si_debug = 0; /* data, not bss, so it's patchable */ 13310015Speter 13434832SpeterSYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RW, &si_debug, 0, ""); 135100743SpeterTUNABLE_INT("machdep.si_debug", &si_debug); 13634832Speter 13756498Speterstatic int si_numunits; 13810044Speter 13956505Speterdevclass_t si_devclass; 14056498Speter 14112174Speter#ifndef B2000 /* not standard, but the hardware knows it. */ 14210015Speter# define B2000 2000 14310015Speter#endif 14410015Speterstatic struct speedtab bdrates[] = { 14550442Speter { B75, CLK75, }, /* 0x0 */ 14650442Speter { B110, CLK110, }, /* 0x1 */ 14750442Speter { B150, CLK150, }, /* 0x3 */ 14850442Speter { B300, CLK300, }, /* 0x4 */ 14950442Speter { B600, CLK600, }, /* 0x5 */ 15050442Speter { B1200, CLK1200, }, /* 0x6 */ 15150442Speter { B2000, CLK2000, }, /* 0x7 */ 15250442Speter { B2400, CLK2400, }, /* 0x8 */ 15350442Speter { B4800, CLK4800, }, /* 0x9 */ 15450442Speter { B9600, CLK9600, }, /* 0xb */ 15550442Speter { B19200, CLK19200, }, /* 0xc */ 15650442Speter { B38400, CLK38400, }, /* 0x2 (out of order!) */ 15750442Speter { B57600, CLK57600, }, /* 0xd */ 15850442Speter { B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */ 15950442Speter { -1, -1 }, 16010015Speter}; 16110015Speter 16210015Speter 16310015Speter/* populated with approx character/sec rates - translated at card 16410015Speter * initialisation time to chars per tick of the clock */ 16510015Speterstatic int done_chartimes = 0; 16610015Speterstatic struct speedtab chartimes[] = { 16750442Speter { B75, 8, }, 16850442Speter { B110, 11, }, 16950442Speter { B150, 15, }, 17050442Speter { B300, 30, }, 17150442Speter { B600, 60, }, 17250442Speter { B1200, 120, }, 17350442Speter { B2000, 200, }, 17450442Speter { B2400, 240, }, 17550442Speter { B4800, 480, }, 17650442Speter { B9600, 960, }, 17750442Speter { B19200, 1920, }, 17850442Speter { B38400, 3840, }, 17950442Speter { B57600, 5760, }, 18050442Speter { B115200, 11520, }, 18150442Speter { -1, -1 }, 18210015Speter}; 18310015Speterstatic volatile int in_intr = 0; /* Inside interrupt handler? */ 18410015Speter 18510015Speter#ifdef POLL 18615683Speterstatic int si_pollrate; /* in addition to irq */ 18756498Speterstatic int si_realpoll = 0; /* poll HW on timer */ 18815639Speter 18916403SpeterSYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, ""); 19017547SpeterSYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, ""); 19150442Speter 19210015Speterstatic int init_finished = 0; 19356498Speterstatic void si_poll(void *); 19410015Speter#endif 19510015Speter 19610015Speter/* 19710015Speter * Array of adapter types and the corresponding RAM size. The order of 19810015Speter * entries here MUST match the ordinal of the adapter type. 19910015Speter */ 20010015Speterstatic char *si_type[] = { 20110015Speter "EMPTY", 20210015Speter "SIHOST", 20334832Speter "SIMCA", /* FreeBSD does not support Microchannel */ 20410015Speter "SIHOST2", 20510015Speter "SIEISA", 20633395Speter "SIPCI", 20733395Speter "SXPCI", 20833395Speter "SXISA", 20910015Speter}; 21010015Speter 21156498Speter/* 21256498Speter * We have to make an 8 bit version of bcopy, since some cards can't 21356498Speter * deal with 32 bit I/O 21456498Speter */ 21556498Speterstatic void __inline 21656498Spetersi_bcopy(const void *src, void *dst, size_t len) 21756498Speter{ 21856498Speter while (len--) 21956498Speter *(((u_char *)dst)++) = *(((const u_char *)src)++); 22056498Speter} 22156498Speterstatic void __inline 22256498Spetersi_vbcopy(const volatile void *src, void *dst, size_t len) 22356498Speter{ 22456498Speter while (len--) 22556498Speter *(((u_char *)dst)++) = *(((const volatile u_char *)src)++); 22656498Speter} 22756498Speterstatic void __inline 22856498Spetersi_bcopyv(const void *src, volatile void *dst, size_t len) 22956498Speter{ 23056498Speter while (len--) 23156498Speter *(((volatile u_char *)dst)++) = *(((const u_char *)src)++); 23256498Speter} 23356498Speter 23456498Speter 23534832Speter/* 23610015Speter * Attach the device. Initialize the card. 23710015Speter */ 23856505Speterint 23956498Spetersiattach(device_t dev) 24010015Speter{ 24156498Speter int unit; 24256498Speter struct si_softc *sc; 24310015Speter struct si_port *pp; 24410015Speter volatile struct si_channel *ccbp; 24510015Speter volatile struct si_reg *regp; 24610015Speter volatile caddr_t maddr; 24710015Speter struct si_module *modp; 24810015Speter struct speedtab *spt; 24910015Speter int nmodule, nport, x, y; 25012174Speter int uart_type; 25110015Speter 25256498Speter sc = device_get_softc(dev); 25356498Speter unit = device_get_unit(dev); 25410015Speter 25556505Speter sc->sc_typename = si_type[sc->sc_type]; 25656505Speter if (si_numunits < unit + 1) 25756505Speter si_numunits = unit + 1; 25856505Speter 25956498Speter DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit)); 26010015Speter 26156498Speter#ifdef POLL 26256498Speter if (si_pollrate == 0) { 26356498Speter si_pollrate = POLLHZ; /* in addition to irq */ 26456498Speter#ifdef REALPOLL 26556498Speter si_realpoll = 1; /* scan always */ 26656498Speter#endif 26756498Speter } 26856498Speter#endif 26956498Speter 27033395Speter DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit, 27133395Speter sc->sc_typename, sc->sc_paddr, sc->sc_maddr)); 27233395Speter 27310015Speter sc->sc_ports = NULL; /* mark as uninitialised */ 27410015Speter 27510015Speter maddr = sc->sc_maddr; 27610015Speter 27734832Speter /* Stop the CPU first so it won't stomp around while we load */ 27834832Speter 27934832Speter switch (sc->sc_type) { 28034832Speter case SIEISA: 28156498Speter outb(sc->sc_iobase + 2, sc->sc_irq << 4); 28234832Speter break; 28334832Speter case SIPCI: 28434832Speter *(maddr+SIPCIRESET) = 0; 28534832Speter break; 28634832Speter case SIJETPCI: /* fall through to JET ISA */ 28734832Speter case SIJETISA: 28834832Speter *(maddr+SIJETCONFIG) = 0; 28934832Speter break; 29034832Speter case SIHOST2: 29134832Speter *(maddr+SIPLRESET) = 0; 29234832Speter break; 29334832Speter case SIHOST: 29434832Speter *(maddr+SIRESET) = 0; 29534832Speter break; 29634832Speter default: /* this should never happen */ 29734832Speter printf("si%d: unsupported configuration\n", unit); 29856498Speter return EINVAL; 29934832Speter break; 30034832Speter } 30134832Speter 30234832Speter /* OK, now lets download the download code */ 30334832Speter 30436956Ssteve if (SI_ISJET(sc->sc_type)) { 30533395Speter DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n", 30656498Speter unit, si3_t225_dsize)); 30734832Speter si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr, 30834832Speter si3_t225_dsize); 30934832Speter DPRINT((0, DBG_DOWNLOAD, 31034832Speter "si%d: jet_bootstrap: nbytes %d -> %x\n", 31156498Speter unit, si3_t225_bsize, si3_t225_bootloadaddr)); 31234832Speter si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr, 31334832Speter si3_t225_bsize); 31434832Speter } else { 31533395Speter DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n", 31656498Speter unit, si2_z280_dsize)); 31734832Speter si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr, 31834832Speter si2_z280_dsize); 31933395Speter } 32010015Speter 32134832Speter /* Now start the CPU */ 32234832Speter 32310015Speter switch (sc->sc_type) { 32410015Speter case SIEISA: 32534832Speter /* modify the download code to tell it that it's on an EISA */ 32634832Speter *(maddr + 0x42) = 1; 32756498Speter outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4); 32856498Speter (void)inb(sc->sc_iobase + 3); /* reset interrupt */ 32910015Speter break; 33033395Speter case SIPCI: 33134832Speter /* modify the download code to tell it that it's on a PCI */ 33233395Speter *(maddr+0x42) = 1; 33333395Speter *(maddr+SIPCIRESET) = 1; 33433395Speter *(maddr+SIPCIINTCL) = 0; 33533395Speter break; 33633395Speter case SIJETPCI: 33733395Speter *(maddr+SIJETRESET) = 0; 33833395Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN; 33933395Speter break; 34033395Speter case SIJETISA: 34133395Speter *(maddr+SIJETRESET) = 0; 34234832Speter switch (sc->sc_irq) { 34356498Speter case 9: 34434832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90; 34534832Speter break; 34656498Speter case 10: 34734832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0; 34834832Speter break; 34956498Speter case 11: 35034832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0; 35134832Speter break; 35256498Speter case 12: 35334832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0; 35434832Speter break; 35556498Speter case 15: 35634832Speter *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0; 35734832Speter break; 35834832Speter } 35933395Speter break; 36010015Speter case SIHOST: 36110015Speter *(maddr+SIRESET_CL) = 0; 36210015Speter *(maddr+SIINTCL_CL) = 0; 36310015Speter break; 36410015Speter case SIHOST2: 36510015Speter *(maddr+SIPLRESET) = 0x10; 36610015Speter switch (sc->sc_irq) { 36756498Speter case 11: 36810015Speter *(maddr+SIPLIRQ11) = 0x10; 36910015Speter break; 37056498Speter case 12: 37110015Speter *(maddr+SIPLIRQ12) = 0x10; 37210015Speter break; 37356498Speter case 15: 37410015Speter *(maddr+SIPLIRQ15) = 0x10; 37510015Speter break; 37610015Speter } 37710015Speter *(maddr+SIPLIRQCLR) = 0x10; 37810015Speter break; 37934832Speter default: /* this should _REALLY_ never happen */ 38034832Speter printf("si%d: Uh, it was supported a second ago...\n", unit); 38156498Speter return EINVAL; 38210015Speter } 38310015Speter 38410015Speter DELAY(1000000); /* wait around for a second */ 38510015Speter 38610015Speter regp = (struct si_reg *)maddr; 38710015Speter y = 0; 38810015Speter /* wait max of 5 sec for init OK */ 38910015Speter while (regp->initstat == 0 && y++ < 10) { 39010015Speter DELAY(500000); 39110015Speter } 39210015Speter switch (regp->initstat) { 39310015Speter case 0: 39410015Speter printf("si%d: startup timeout - aborting\n", unit); 39512174Speter sc->sc_type = SIEMPTY; 39656498Speter return EINVAL; 39710015Speter case 1: 39836956Ssteve if (SI_ISJET(sc->sc_type)) { 39934832Speter /* set throttle to 100 times per second */ 40034832Speter regp->int_count = JET_INT_COUNT; 40134832Speter /* rx_intr_count is a NOP in Jet */ 40234832Speter } else { 40334832Speter /* set throttle to 125 times per second */ 40434832Speter regp->int_count = INT_COUNT; 40534832Speter /* rx intr max of 25 times per second */ 40634832Speter regp->rx_int_count = RXINT_COUNT; 40734832Speter } 40810015Speter regp->int_pending = 0; /* no intr pending */ 40910015Speter regp->int_scounter = 0; /* reset counter */ 41010015Speter break; 41110015Speter case 0xff: 41210015Speter /* 41310015Speter * No modules found, so give up on this one. 41410015Speter */ 41510015Speter printf("si%d: %s - no ports found\n", unit, 41610015Speter si_type[sc->sc_type]); 41710015Speter return 0; 41810015Speter default: 41934832Speter printf("si%d: download code version error - initstat %x\n", 42010015Speter unit, regp->initstat); 42156498Speter return EINVAL; 42210015Speter } 42310015Speter 42410015Speter /* 42510015Speter * First time around the ports just count them in order 42610015Speter * to allocate some memory. 42710015Speter */ 42810015Speter nport = 0; 42910015Speter modp = (struct si_module *)(maddr + 0x80); 43010015Speter for (;;) { 43112174Speter DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp)); 43234832Speter switch (modp->sm_type) { 43334832Speter case TA4: 43410015Speter DPRINT((0, DBG_DOWNLOAD, 43534832Speter "si%d: Found old TA4 module, 4 ports\n", 43634832Speter unit)); 43734832Speter x = 4; 43810015Speter break; 43934832Speter case TA8: 44034832Speter DPRINT((0, DBG_DOWNLOAD, 44134832Speter "si%d: Found old TA8 module, 8 ports\n", 44234832Speter unit)); 44334832Speter x = 8; 44434832Speter break; 44534832Speter case TA4_ASIC: 44634832Speter DPRINT((0, DBG_DOWNLOAD, 44734832Speter "si%d: Found ASIC TA4 module, 4 ports\n", 44834832Speter unit)); 44934832Speter x = 4; 45034832Speter break; 45134832Speter case TA8_ASIC: 45234832Speter DPRINT((0, DBG_DOWNLOAD, 45334832Speter "si%d: Found ASIC TA8 module, 8 ports\n", 45434832Speter unit)); 45534832Speter x = 8; 45634832Speter break; 45734832Speter case MTA: 45834832Speter DPRINT((0, DBG_DOWNLOAD, 45934832Speter "si%d: Found CD1400 module, 8 ports\n", 46034832Speter unit)); 46134832Speter x = 8; 46234832Speter break; 46334832Speter case SXDC: 46434832Speter DPRINT((0, DBG_DOWNLOAD, 46534832Speter "si%d: Found SXDC module, 8 ports\n", 46634832Speter unit)); 46734832Speter x = 8; 46834832Speter break; 46910015Speter default: 47010015Speter printf("si%d: unknown module type %d\n", 47110015Speter unit, modp->sm_type); 47234832Speter goto try_next; 47310015Speter } 47434832Speter 47534832Speter /* this was limited in firmware and is also a driver issue */ 47634832Speter if ((nport + x) > SI_MAXPORTPERCARD) { 47734832Speter printf("si%d: extra ports ignored\n", unit); 47834832Speter goto try_next; 47934832Speter } 48034832Speter 48134832Speter nport += x; 48234832Speter si_Nports += x; 48334832Speter si_Nmodules++; 48434832Speter 48534832Spetertry_next: 48610015Speter if (modp->sm_next == 0) 48710015Speter break; 48810015Speter modp = (struct si_module *) 48910015Speter (maddr + (unsigned)(modp->sm_next & 0x7fff)); 49010015Speter } 49110015Speter sc->sc_ports = (struct si_port *)malloc(sizeof(struct si_port) * nport, 49269781Sdwmalone M_DEVBUF, M_NOWAIT | M_ZERO); 49310015Speter if (sc->sc_ports == 0) { 49410015Speter printf("si%d: fail to malloc memory for port structs\n", 49510015Speter unit); 49656498Speter return EINVAL; 49710015Speter } 49810015Speter sc->sc_nport = nport; 49910015Speter 50010015Speter /* 50110015Speter * Scan round the ports again, this time initialising. 50210015Speter */ 50310015Speter pp = sc->sc_ports; 50410015Speter nmodule = 0; 50510015Speter modp = (struct si_module *)(maddr + 0x80); 50634832Speter uart_type = 1000; /* arbitary, > uchar_max */ 50710015Speter for (;;) { 50834832Speter switch (modp->sm_type) { 50934832Speter case TA4: 51034832Speter nport = 4; 51110015Speter break; 51234832Speter case TA8: 51334832Speter nport = 8; 51434832Speter break; 51534832Speter case TA4_ASIC: 51634832Speter nport = 4; 51734832Speter break; 51834832Speter case TA8_ASIC: 51934832Speter nport = 8; 52034832Speter break; 52134832Speter case MTA: 52234832Speter nport = 8; 52334832Speter break; 52434832Speter case SXDC: 52534832Speter nport = 8; 52634832Speter break; 52710015Speter default: 52834832Speter goto try_next2; 52910015Speter } 53034832Speter nmodule++; 53134832Speter ccbp = (struct si_channel *)((char *)modp + 0x100); 53234832Speter if (uart_type == 1000) 53334832Speter uart_type = ccbp->type; 53434832Speter else if (uart_type != ccbp->type) 53534832Speter printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n", 53634832Speter unit, nmodule, 53734832Speter ccbp->type, si_modulename(sc->sc_type, ccbp->type), 53834832Speter uart_type, si_modulename(sc->sc_type, uart_type)); 53934832Speter 54034832Speter for (x = 0; x < nport; x++, pp++, ccbp++) { 54134832Speter pp->sp_ccb = ccbp; /* save the address */ 54272685Speter pp->sp_tty = ttymalloc(NULL); 54334832Speter pp->sp_pend = IDLE_CLOSE; 54434832Speter pp->sp_state = 0; /* internal flag */ 54534832Speter pp->sp_dtr_wait = 3 * hz; 54634832Speter pp->sp_iin.c_iflag = TTYDEF_IFLAG; 54734832Speter pp->sp_iin.c_oflag = TTYDEF_OFLAG; 54834832Speter pp->sp_iin.c_cflag = TTYDEF_CFLAG; 54934832Speter pp->sp_iin.c_lflag = TTYDEF_LFLAG; 55034832Speter termioschars(&pp->sp_iin); 55134832Speter pp->sp_iin.c_ispeed = pp->sp_iin.c_ospeed = 55234832Speter TTYDEF_SPEED;; 55334832Speter pp->sp_iout = pp->sp_iin; 55434832Speter } 55534832Spetertry_next2: 55610015Speter if (modp->sm_next == 0) { 55734832Speter printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n", 55810015Speter unit, 55910015Speter sc->sc_typename, 56010015Speter sc->sc_nport, 56112174Speter nmodule, 56234832Speter uart_type, 56334832Speter si_modulename(sc->sc_type, uart_type)); 56410015Speter break; 56510015Speter } 56610015Speter modp = (struct si_module *) 56710015Speter (maddr + (unsigned)(modp->sm_next & 0x7fff)); 56810015Speter } 56910015Speter if (done_chartimes == 0) { 57010015Speter for (spt = chartimes ; spt->sp_speed != -1; spt++) { 57110015Speter if ((spt->sp_code /= hz) == 0) 57210015Speter spt->sp_code = 1; 57310015Speter } 57410015Speter done_chartimes = 1; 57510015Speter } 57612502Sjulian 57712675Sjulian/* path name devsw minor type uid gid perm*/ 57850442Speter for (x = 0; x < sc->sc_nport; x++) { 57934735Speter /* sync with the manuals that start at 1 */ 58056498Speter y = x + 1 + unit * (1 << SI_CARDSHIFT); 58150442Speter make_dev(&si_cdevsw, x, 0, 0, 0600, "ttyA%02d", y); 58250442Speter make_dev(&si_cdevsw, x + 0x00080, 0, 0, 0600, "cuaA%02d", y); 58350442Speter make_dev(&si_cdevsw, x + 0x10000, 0, 0, 0600, "ttyiA%02d", y); 58450442Speter make_dev(&si_cdevsw, x + 0x10080, 0, 0, 0600, "cuaiA%02d", y); 58550442Speter make_dev(&si_cdevsw, x + 0x20000, 0, 0, 0600, "ttylA%02d", y); 58650442Speter make_dev(&si_cdevsw, x + 0x20080, 0, 0, 0600, "cualA%02d", y); 58712675Sjulian } 58850254Sphk make_dev(&si_cdevsw, 0x40000, 0, 0, 0600, "si_control"); 58956498Speter return (0); 59010015Speter} 59110015Speter 59212675Sjulianstatic int 59383366Sjuliansiopen(dev_t dev, int flag, int mode, struct thread *td) 59410015Speter{ 59510015Speter int oldspl, error; 59610015Speter int card, port; 59756498Speter struct si_softc *sc; 59856498Speter struct tty *tp; 59910015Speter volatile struct si_channel *ccbp; 60010015Speter struct si_port *pp; 60110015Speter int mynor = minor(dev); 60210015Speter 60310015Speter /* quickly let in /dev/si_control */ 60410015Speter if (IS_CONTROLDEV(mynor)) { 60593593Sjhb if ((error = suser(td))) 60610015Speter return(error); 60710015Speter return(0); 60810015Speter } 60910015Speter 61010015Speter card = SI_CARD(mynor); 61156498Speter sc = devclass_get_softc(si_devclass, card); 61256498Speter if (sc == NULL) 61310015Speter return (ENXIO); 61410015Speter 61512174Speter if (sc->sc_type == SIEMPTY) { 61612174Speter DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: type %s??\n", 61710015Speter card, sc->sc_typename)); 61810015Speter return(ENXIO); 61910015Speter } 62010015Speter 62110015Speter port = SI_PORT(mynor); 62210015Speter if (port >= sc->sc_nport) { 62312174Speter DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: nports %d\n", 62410015Speter card, sc->sc_nport)); 62510015Speter return(ENXIO); 62610015Speter } 62710015Speter 62810015Speter#ifdef POLL 62910015Speter /* 63010015Speter * We've now got a device, so start the poller. 63110015Speter */ 63210015Speter if (init_finished == 0) { 63315639Speter timeout(si_poll, (caddr_t)0L, si_pollrate); 63410015Speter init_finished = 1; 63510015Speter } 63610015Speter#endif 63710015Speter 63810015Speter /* initial/lock device */ 63910015Speter if (IS_STATE(mynor)) { 64010015Speter return(0); 64110015Speter } 64210015Speter 64310015Speter pp = sc->sc_ports + port; 64410015Speter tp = pp->sp_tty; /* the "real" tty */ 64551654Sphk dev->si_tty = tp; 64610015Speter ccbp = pp->sp_ccb; /* Find control block */ 64750016Snsayer DPRINT((pp, DBG_ENTRY|DBG_OPEN, "siopen(%s,%x,%x,%x)\n", 64883366Sjulian devtoname(dev), flag, mode, td)); 64910015Speter 65010015Speter oldspl = spltty(); /* Keep others out */ 65110015Speter error = 0; 65210015Speter 65310015Speteropen_top: 65410015Speter while (pp->sp_state & SS_DTR_OFF) { 65510015Speter error = tsleep(&pp->sp_dtr_wait, TTIPRI|PCATCH, "sidtr", 0); 65610015Speter if (error != 0) 65710015Speter goto out; 65810015Speter } 65910015Speter 66010015Speter if (tp->t_state & TS_ISOPEN) { 66110015Speter /* 66210015Speter * The device is open, so everything has been initialised. 66310015Speter * handle conflicts. 66410015Speter */ 66510015Speter if (IS_CALLOUT(mynor)) { 66610015Speter if (!pp->sp_active_out) { 66710015Speter error = EBUSY; 66810015Speter goto out; 66910015Speter } 67010015Speter } else { 67110015Speter if (pp->sp_active_out) { 67210015Speter if (flag & O_NONBLOCK) { 67310015Speter error = EBUSY; 67410015Speter goto out; 67510015Speter } 67610015Speter error = tsleep(&pp->sp_active_out, 67710015Speter TTIPRI|PCATCH, "sibi", 0); 67810015Speter if (error != 0) 67910015Speter goto out; 68010015Speter goto open_top; 68110015Speter } 68210015Speter } 68343425Sphk if (tp->t_state & TS_XCLUDE && 68493593Sjhb suser(td)) { 68510015Speter DPRINT((pp, DBG_OPEN|DBG_FAIL, 68610015Speter "already open and EXCLUSIVE set\n")); 68710015Speter error = EBUSY; 68810015Speter goto out; 68910015Speter } 69010015Speter } else { 69110015Speter /* 69210015Speter * The device isn't open, so there are no conflicts. 69310015Speter * Initialize it. Avoid sleep... :-) 69410015Speter */ 69510015Speter DPRINT((pp, DBG_OPEN, "first open\n")); 69610015Speter tp->t_oproc = si_start; 69751654Sphk tp->t_stop = si_stop; 69810015Speter tp->t_param = siparam; 69910015Speter tp->t_dev = dev; 70010015Speter tp->t_termios = mynor & SI_CALLOUT_MASK 70110015Speter ? pp->sp_iout : pp->sp_iin; 70210015Speter 70310015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 70410015Speter 70510015Speter ++pp->sp_wopeners; /* in case of sleep in siparam */ 70610015Speter 70710015Speter error = siparam(tp, &tp->t_termios); 70810015Speter 70910015Speter --pp->sp_wopeners; 71010015Speter if (error != 0) 71110015Speter goto out; 71210015Speter /* XXX: we should goto_top if siparam slept */ 71310015Speter 71410015Speter /* set initial DCD state */ 71510015Speter pp->sp_last_hi_ip = ccbp->hi_ip; 71610015Speter if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) { 717130077Sphk ttyld_modem(tp, 1); 71810015Speter } 71910015Speter } 72010015Speter 72110015Speter /* whoops! we beat the close! */ 72210015Speter if (pp->sp_state & SS_CLOSING) { 72310015Speter /* try and stop it from proceeding to bash the hardware */ 72410015Speter pp->sp_state &= ~SS_CLOSING; 72510015Speter } 72610015Speter 72710015Speter /* 72810015Speter * Wait for DCD if necessary 72910015Speter */ 73050442Speter if (!(tp->t_state & TS_CARR_ON) && 73150442Speter !IS_CALLOUT(mynor) && 73250442Speter !(tp->t_cflag & CLOCAL) && 73350442Speter !(flag & O_NONBLOCK)) { 73410015Speter ++pp->sp_wopeners; 73510015Speter DPRINT((pp, DBG_OPEN, "sleeping for carrier\n")); 73610015Speter error = tsleep(TSA_CARR_ON(tp), TTIPRI|PCATCH, "sidcd", 0); 73710015Speter --pp->sp_wopeners; 73810015Speter if (error != 0) 73910015Speter goto out; 74010015Speter goto open_top; 74110015Speter } 74210015Speter 743130077Sphk error = ttyld_open(tp, dev); 74410015Speter si_disc_optim(tp, &tp->t_termios, pp); 74510015Speter if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor)) 74610015Speter pp->sp_active_out = TRUE; 74710015Speter 74810015Speter pp->sp_state |= SS_OPEN; /* made it! */ 74910015Speter 75010015Speterout: 75110015Speter splx(oldspl); 75210015Speter 75310015Speter DPRINT((pp, DBG_OPEN, "leaving siopen\n")); 75410015Speter 75510015Speter if (!(tp->t_state & TS_ISOPEN) && pp->sp_wopeners == 0) 75610015Speter sihardclose(pp); 75710015Speter 75810015Speter return(error); 75910015Speter} 76010015Speter 76112675Sjulianstatic int 76283366Sjuliansiclose(dev_t dev, int flag, int mode, struct thread *td) 76310015Speter{ 76456498Speter struct si_port *pp; 76556498Speter struct tty *tp; 76610015Speter int oldspl; 76710015Speter int error = 0; 76810015Speter int mynor = minor(dev); 76910015Speter 77010015Speter if (IS_SPECIAL(mynor)) 77110015Speter return(0); 77210015Speter 77310015Speter oldspl = spltty(); 77410015Speter 77510015Speter pp = MINOR2PP(mynor); 77610015Speter tp = pp->sp_tty; 77710015Speter 77850016Snsayer DPRINT((pp, DBG_ENTRY|DBG_CLOSE, "siclose(%s,%x,%x,%x) sp_state:%x\n", 77983366Sjulian devtoname(dev), flag, mode, td, pp->sp_state)); 78010015Speter 78110015Speter /* did we sleep and loose a race? */ 78210015Speter if (pp->sp_state & SS_CLOSING) { 78310015Speter /* error = ESOMETING? */ 78410015Speter goto out; 78510015Speter } 78610015Speter 78710015Speter /* begin race detection.. */ 78810015Speter pp->sp_state |= SS_CLOSING; 78910015Speter 79010015Speter si_write_enable(pp, 0); /* block writes for ttywait() */ 79110015Speter 79210015Speter /* THIS MAY SLEEP IN TTYWAIT!!! */ 793130077Sphk ttyld_close(tp, flag); 79410015Speter 79510015Speter si_write_enable(pp, 1); 79610015Speter 79710015Speter /* did we sleep and somebody started another open? */ 79810015Speter if (!(pp->sp_state & SS_CLOSING)) { 79910015Speter /* error = ESOMETING? */ 80010015Speter goto out; 80110015Speter } 80210015Speter /* ok. we are now still on the right track.. nuke the hardware */ 80310015Speter 80410015Speter if (pp->sp_state & SS_LSTART) { 80529677Sgibbs untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 80610015Speter pp->sp_state &= ~SS_LSTART; 80710015Speter } 80810015Speter 80910015Speter sihardclose(pp); 81010015Speter ttyclose(tp); 81110015Speter pp->sp_state &= ~SS_OPEN; 81210015Speter 81310015Speterout: 81410015Speter DPRINT((pp, DBG_CLOSE|DBG_EXIT, "close done, returning\n")); 81510015Speter splx(oldspl); 81610015Speter return(error); 81710015Speter} 81810015Speter 81910015Speterstatic void 82056498Spetersihardclose(struct si_port *pp) 82110015Speter{ 82210015Speter int oldspl; 82310015Speter struct tty *tp; 82410015Speter volatile struct si_channel *ccbp; 82510015Speter 82610015Speter oldspl = spltty(); 82710015Speter 82810015Speter tp = pp->sp_tty; 82910015Speter ccbp = pp->sp_ccb; /* Find control block */ 83050442Speter if (tp->t_cflag & HUPCL || 83150442Speter (!pp->sp_active_out && 83250442Speter !(ccbp->hi_ip & IP_DCD) && 83350442Speter !(pp->sp_iin.c_cflag && CLOCAL)) || 83450442Speter !(tp->t_state & TS_ISOPEN)) { 83510015Speter 83610015Speter (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 83710015Speter (void) si_command(pp, FCLOSE, SI_NOWAIT); 83810015Speter 83910015Speter if (pp->sp_dtr_wait != 0) { 84010015Speter timeout(sidtrwakeup, pp, pp->sp_dtr_wait); 84110015Speter pp->sp_state |= SS_DTR_OFF; 84210015Speter } 84310015Speter 84410015Speter } 84510015Speter pp->sp_active_out = FALSE; 846111748Sdes wakeup(&pp->sp_active_out); 84710015Speter wakeup(TSA_CARR_ON(tp)); 84810015Speter 84910015Speter splx(oldspl); 85010015Speter} 85110015Speter 85210015Speter 85310015Speter/* 85410015Speter * called at splsoftclock()... 85510015Speter */ 85610015Speterstatic void 85756498Spetersidtrwakeup(void *chan) 85810015Speter{ 85910015Speter struct si_port *pp; 86010015Speter int oldspl; 86110015Speter 86210015Speter oldspl = spltty(); 86310015Speter 86410015Speter pp = (struct si_port *)chan; 86510015Speter pp->sp_state &= ~SS_DTR_OFF; 86610015Speter wakeup(&pp->sp_dtr_wait); 86710015Speter 86810015Speter splx(oldspl); 86910015Speter} 87010015Speter 87112675Sjulianstatic int 87256498Spetersiwrite(dev_t dev, struct uio *uio, int flag) 87310015Speter{ 87456498Speter struct si_port *pp; 87556498Speter struct tty *tp; 87610015Speter int error = 0; 87710015Speter int mynor = minor(dev); 87810015Speter int oldspl; 87910015Speter 88010015Speter if (IS_SPECIAL(mynor)) { 88110015Speter DPRINT((0, DBG_ENTRY|DBG_FAIL|DBG_WRITE, "siwrite(CONTROLDEV!!)\n")); 88210015Speter return(ENODEV); 88310015Speter } 88410015Speter pp = MINOR2PP(mynor); 88510015Speter tp = pp->sp_tty; 88650016Snsayer DPRINT((pp, DBG_WRITE, "siwrite(%s,%x,%x)\n", devtoname(dev), uio, flag)); 88710015Speter 88810015Speter oldspl = spltty(); 88910015Speter /* 89010015Speter * If writes are currently blocked, wait on the "real" tty 89110015Speter */ 89210015Speter while (pp->sp_state & SS_BLOCKWRITE) { 89310015Speter pp->sp_state |= SS_WAITWRITE; 89410015Speter DPRINT((pp, DBG_WRITE, "in siwrite, wait for SS_BLOCKWRITE to clear\n")); 89518515Speter if ((error = ttysleep(tp, (caddr_t)pp, TTOPRI|PCATCH, 89618515Speter "siwrite", tp->t_timeout))) { 89717291Speter if (error == EWOULDBLOCK) 89817290Speter error = EIO; 89910015Speter goto out; 90017290Speter } 90110015Speter } 90210015Speter 903130077Sphk error = ttyld_write(tp, uio, flag); 90410015Speterout: 90510015Speter splx(oldspl); 90610015Speter return (error); 90710015Speter} 90810015Speter 90910015Speter 91012675Sjulianstatic int 91183366Sjuliansiioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 91210015Speter{ 91310015Speter struct si_port *pp; 91456498Speter struct tty *tp; 91510015Speter int error; 91610015Speter int mynor = minor(dev); 91710015Speter int oldspl; 91810015Speter int blocked = 0; 91910015Speter#if defined(COMPAT_43) 92038351Sbde u_long oldcmd; 92110015Speter struct termios term; 92210015Speter#endif 92310015Speter 92410015Speter if (IS_SI_IOCTL(cmd)) 92583366Sjulian return(si_Sioctl(dev, cmd, data, flag, td)); 92610015Speter 92710015Speter pp = MINOR2PP(mynor); 92810015Speter tp = pp->sp_tty; 92910015Speter 93050016Snsayer DPRINT((pp, DBG_ENTRY|DBG_IOCTL, "siioctl(%s,%lx,%x,%x)\n", 93150016Snsayer devtoname(dev), cmd, data, flag)); 93210015Speter if (IS_STATE(mynor)) { 93310015Speter struct termios *ct; 93410015Speter 93510015Speter switch (mynor & SI_STATE_MASK) { 93610015Speter case SI_INIT_STATE_MASK: 93710015Speter ct = IS_CALLOUT(mynor) ? &pp->sp_iout : &pp->sp_iin; 93810015Speter break; 93910015Speter case SI_LOCK_STATE_MASK: 94016839Speter ct = IS_CALLOUT(mynor) ? &pp->sp_lout : &pp->sp_lin; 94110015Speter break; 94210015Speter default: 94310015Speter return (ENODEV); 94410015Speter } 94510015Speter switch (cmd) { 94610015Speter case TIOCSETA: 94793593Sjhb error = suser(td); 94810015Speter if (error != 0) 94910015Speter return (error); 95010015Speter *ct = *(struct termios *)data; 95110015Speter return (0); 95210015Speter case TIOCGETA: 95310015Speter *(struct termios *)data = *ct; 95410015Speter return (0); 95510015Speter case TIOCGETD: 95610015Speter *(int *)data = TTYDISC; 95710015Speter return (0); 95810015Speter case TIOCGWINSZ: 95910015Speter bzero(data, sizeof(struct winsize)); 96010015Speter return (0); 96110015Speter default: 96210015Speter return (ENOTTY); 96310015Speter } 96410015Speter } 96510015Speter /* 96610015Speter * Do the old-style ioctl compat routines... 96710015Speter */ 96810015Speter#if defined(COMPAT_43) 96910015Speter term = tp->t_termios; 97010015Speter oldcmd = cmd; 97110015Speter error = ttsetcompat(tp, &cmd, data, &term); 97210015Speter if (error != 0) 97310015Speter return (error); 97410015Speter if (cmd != oldcmd) 97510015Speter data = (caddr_t)&term; 97610015Speter#endif 97710015Speter /* 97810015Speter * Do the initial / lock state business 97910015Speter */ 98010015Speter if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { 98110015Speter int cc; 98210015Speter struct termios *dt = (struct termios *)data; 98310015Speter struct termios *lt = mynor & SI_CALLOUT_MASK 98410015Speter ? &pp->sp_lout : &pp->sp_lin; 98510015Speter 98650442Speter dt->c_iflag = (tp->t_iflag & lt->c_iflag) | 98750442Speter (dt->c_iflag & ~lt->c_iflag); 98850442Speter dt->c_oflag = (tp->t_oflag & lt->c_oflag) | 98950442Speter (dt->c_oflag & ~lt->c_oflag); 99050442Speter dt->c_cflag = (tp->t_cflag & lt->c_cflag) | 99150442Speter (dt->c_cflag & ~lt->c_cflag); 99250442Speter dt->c_lflag = (tp->t_lflag & lt->c_lflag) | 99350442Speter (dt->c_lflag & ~lt->c_lflag); 99410015Speter for (cc = 0; cc < NCCS; ++cc) 99510015Speter if (lt->c_cc[cc] != 0) 99610015Speter dt->c_cc[cc] = tp->t_cc[cc]; 99710015Speter if (lt->c_ispeed != 0) 99810015Speter dt->c_ispeed = tp->t_ispeed; 99910015Speter if (lt->c_ospeed != 0) 100010015Speter dt->c_ospeed = tp->t_ospeed; 100110015Speter } 100210015Speter 100310015Speter /* 100410015Speter * Block user-level writes to give the ttywait() 100510015Speter * a chance to completely drain for commands 100610015Speter * that require the port to be in a quiescent state. 100710015Speter */ 100810015Speter switch (cmd) { 100934832Speter case TIOCSETAW: 101034832Speter case TIOCSETAF: 101117396Speter case TIOCDRAIN: 101217396Speter#ifdef COMPAT_43 101317396Speter case TIOCSETP: 101417396Speter#endif 101510015Speter blocked++; /* block writes for ttywait() and siparam() */ 101610015Speter si_write_enable(pp, 0); 101710015Speter } 101810015Speter 1019130057Sphk error = ttyioctl(dev, cmd, data, flag, td); 1020130057Sphk si_disc_optim(tp, &tp->t_termios, pp); 1021130057Sphk if (error != ENOTTY) 102210015Speter goto out; 102310015Speter 102410015Speter oldspl = spltty(); 102510015Speter 102650435Speter error = 0; 102710015Speter switch (cmd) { 102810015Speter case TIOCSBRK: 102916575Speter si_command(pp, SBREAK, SI_WAIT); 103010015Speter break; 103110015Speter case TIOCCBRK: 103216575Speter si_command(pp, EBREAK, SI_WAIT); 103310015Speter break; 103410015Speter case TIOCSDTR: 103510015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 103610015Speter break; 103710015Speter case TIOCCDTR: 103810015Speter (void) si_modem(pp, SET, 0); 103910015Speter break; 104010015Speter case TIOCMSET: 104110015Speter (void) si_modem(pp, SET, *(int *)data); 104210015Speter break; 104310015Speter case TIOCMBIS: 104410015Speter (void) si_modem(pp, BIS, *(int *)data); 104510015Speter break; 104610015Speter case TIOCMBIC: 104710015Speter (void) si_modem(pp, BIC, *(int *)data); 104810015Speter break; 104910015Speter case TIOCMGET: 105010015Speter *(int *)data = si_modem(pp, GET, 0); 105110015Speter break; 105210015Speter case TIOCMSDTRWAIT: 105310015Speter /* must be root since the wait applies to following logins */ 105493593Sjhb error = suser(td); 105550435Speter if (error == 0) 105650435Speter pp->sp_dtr_wait = *(int *)data * hz / 100; 105710015Speter break; 105810015Speter case TIOCMGDTRWAIT: 105910015Speter *(int *)data = pp->sp_dtr_wait * 100 / hz; 106010015Speter break; 106110015Speter default: 106210015Speter error = ENOTTY; 106310015Speter } 106410015Speter splx(oldspl); 106550435Speter 106610015Speterout: 106710015Speter DPRINT((pp, DBG_IOCTL|DBG_EXIT, "siioctl ret %d\n", error)); 106810015Speter if (blocked) 106910015Speter si_write_enable(pp, 1); 107010015Speter return(error); 107110015Speter} 107210015Speter 107310015Speter/* 107410015Speter * Handle the Specialix ioctls. All MUST be called via the CONTROL device 107510015Speter */ 107610015Speterstatic int 107783366Sjuliansi_Sioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) 107810015Speter{ 107910015Speter struct si_softc *xsc; 108056498Speter struct si_port *xpp; 108110015Speter volatile struct si_reg *regp; 108210015Speter struct si_tcsi *dp; 108310044Speter struct si_pstat *sps; 108411872Sphk int *ip, error = 0; 108510015Speter int oldspl; 108610015Speter int card, port; 108710015Speter int mynor = minor(dev); 108810015Speter 108950016Snsayer DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,%lx,%x,%x)\n", 109050016Snsayer devtoname(dev), cmd, data, flag)); 109110015Speter 109210044Speter#if 1 109310044Speter DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT)); 109410044Speter DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB)); 109510044Speter DPRINT((0, DBG_IOCTL, "TCSI_TTY=%x\n", TCSI_TTY)); 109610044Speter#endif 109710044Speter 109810015Speter if (!IS_CONTROLDEV(mynor)) { 109910015Speter DPRINT((0, DBG_IOCTL|DBG_FAIL, "not called from control device!\n")); 110010015Speter return(ENODEV); 110110015Speter } 110210015Speter 110310015Speter oldspl = spltty(); /* better safe than sorry */ 110410015Speter 110510015Speter ip = (int *)data; 110610015Speter 110793593Sjhb#define SUCHECK if ((error = suser(td))) goto out 110810015Speter 110910015Speter switch (cmd) { 111010015Speter case TCSIPORTS: 111110015Speter *ip = si_Nports; 111210015Speter goto out; 111310015Speter case TCSIMODULES: 111410015Speter *ip = si_Nmodules; 111510015Speter goto out; 111610015Speter case TCSISDBG_ALL: 111710015Speter SUCHECK; 111810015Speter si_debug = *ip; 111910015Speter goto out; 112010015Speter case TCSIGDBG_ALL: 112110015Speter *ip = si_debug; 112210015Speter goto out; 112310015Speter default: 112410015Speter /* 112510015Speter * Check that a controller for this port exists 112610015Speter */ 112710044Speter 112810044Speter /* may also be a struct si_pstat, a superset of si_tcsi */ 112910044Speter 113010015Speter dp = (struct si_tcsi *)data; 113110044Speter sps = (struct si_pstat *)data; 113210015Speter card = dp->tc_card; 113356498Speter xsc = devclass_get_softc(si_devclass, card); /* check.. */ 113456498Speter if (xsc == NULL || xsc->sc_type == SIEMPTY) { 113510015Speter error = ENOENT; 113610015Speter goto out; 113710015Speter } 113810015Speter /* 113910015Speter * And check that a port exists 114010015Speter */ 114110015Speter port = dp->tc_port; 114210015Speter if (port < 0 || port >= xsc->sc_nport) { 114310015Speter error = ENOENT; 114410015Speter goto out; 114510015Speter } 114610015Speter xpp = xsc->sc_ports + port; 114710015Speter regp = (struct si_reg *)xsc->sc_maddr; 114810015Speter } 114910015Speter 115010015Speter switch (cmd) { 115110015Speter case TCSIDEBUG: 115210015Speter#ifdef SI_DEBUG 115310015Speter SUCHECK; 115410015Speter if (xpp->sp_debug) 115510015Speter xpp->sp_debug = 0; 115610015Speter else { 115710015Speter xpp->sp_debug = DBG_ALL; 115810015Speter DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n", 115910015Speter (xpp->sp_debug&DBG_ALL)?"ON":"OFF")); 116010015Speter } 116110015Speter break; 116210015Speter#else 116310015Speter error = ENODEV; 116410015Speter goto out; 116510015Speter#endif 116610015Speter case TCSISDBG_LEVEL: 116710015Speter case TCSIGDBG_LEVEL: 116810015Speter#ifdef SI_DEBUG 116910015Speter if (cmd == TCSIGDBG_LEVEL) { 117010015Speter dp->tc_dbglvl = xpp->sp_debug; 117110015Speter } else { 117210015Speter SUCHECK; 117310015Speter xpp->sp_debug = dp->tc_dbglvl; 117410015Speter } 117510015Speter break; 117610015Speter#else 117710015Speter error = ENODEV; 117810015Speter goto out; 117910015Speter#endif 118010015Speter case TCSIGRXIT: 118110015Speter dp->tc_int = regp->rx_int_count; 118210015Speter break; 118310015Speter case TCSIRXIT: 118410015Speter SUCHECK; 118510015Speter regp->rx_int_count = dp->tc_int; 118610015Speter break; 118710015Speter case TCSIGIT: 118810015Speter dp->tc_int = regp->int_count; 118910015Speter break; 119010015Speter case TCSIIT: 119110015Speter SUCHECK; 119210015Speter regp->int_count = dp->tc_int; 119310015Speter break; 119410044Speter case TCSISTATE: 119510044Speter dp->tc_int = xpp->sp_ccb->hi_ip; 119610015Speter break; 119710044Speter /* these next three use a different structure */ 119810044Speter case TCSI_PORT: 119910015Speter SUCHECK; 120034832Speter si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport)); 120110015Speter break; 120210044Speter case TCSI_CCB: 120310044Speter SUCHECK; 120450442Speter si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb)); 120510015Speter break; 120610044Speter case TCSI_TTY: 120710044Speter SUCHECK; 120834832Speter si_bcopy(xpp->sp_tty, &sps->tc_tty, sizeof(sps->tc_tty)); 120910015Speter break; 121010015Speter default: 121110015Speter error = EINVAL; 121210015Speter goto out; 121310015Speter } 121410015Speterout: 121510015Speter splx(oldspl); 121610015Speter return(error); /* success */ 121710015Speter} 121810015Speter 121910015Speter/* 122010015Speter * siparam() : Configure line params 122110015Speter * called at spltty(); 122210015Speter * this may sleep, does not flush, nor wait for drain, nor block writes 122310015Speter * caller must arrange this if it's important.. 122410015Speter */ 122512724Sphkstatic int 122656498Spetersiparam(struct tty *tp, struct termios *t) 122710015Speter{ 122856498Speter struct si_port *pp = TP2PP(tp); 122910015Speter volatile struct si_channel *ccbp; 123010015Speter int oldspl, cflag, iflag, oflag, lflag; 123110015Speter int error = 0; /* shutup gcc */ 123210015Speter int ispeed = 0; /* shutup gcc */ 123310015Speter int ospeed = 0; /* shutup gcc */ 123410161Speter BYTE val; 123510015Speter 123610015Speter DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t)); 123710015Speter cflag = t->c_cflag; 123810015Speter iflag = t->c_iflag; 123910015Speter oflag = t->c_oflag; 124010015Speter lflag = t->c_lflag; 124110044Speter DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n", 124210044Speter oflag, cflag, iflag, lflag)); 124310015Speter 124434832Speter /* XXX - if Jet host and SXDC module, use extended baud rates */ 124510015Speter 124610015Speter /* if not hung up.. */ 124710015Speter if (t->c_ospeed != 0) { 124810015Speter /* translate baud rate to firmware values */ 124910015Speter ospeed = ttspeedtab(t->c_ospeed, bdrates); 125010015Speter ispeed = t->c_ispeed ? 125110015Speter ttspeedtab(t->c_ispeed, bdrates) : ospeed; 125210015Speter 125310015Speter /* enforce legit baud rate */ 125410015Speter if (ospeed < 0 || ispeed < 0) 125510015Speter return (EINVAL); 125610015Speter } 125710015Speter 125810015Speter oldspl = spltty(); 125910015Speter 126010015Speter ccbp = pp->sp_ccb; 126110015Speter 126210161Speter /* ========== set hi_break ========== */ 126310161Speter val = 0; 126410161Speter if (iflag & IGNBRK) /* Breaks */ 126510161Speter val |= BR_IGN; 126610161Speter if (iflag & BRKINT) /* Interrupt on break? */ 126710161Speter val |= BR_INT; 126810161Speter if (iflag & PARMRK) /* Parity mark? */ 126910161Speter val |= BR_PARMRK; 127010161Speter if (iflag & IGNPAR) /* Ignore chars with parity errors? */ 127110161Speter val |= BR_PARIGN; 127210161Speter ccbp->hi_break = val; 127310161Speter 127410161Speter /* ========== set hi_csr ========== */ 127510015Speter /* if not hung up.. */ 127610015Speter if (t->c_ospeed != 0) { 127710015Speter /* Set I/O speeds */ 127810161Speter val = (ispeed << 4) | ospeed; 127910015Speter } 128010161Speter ccbp->hi_csr = val; 128110015Speter 128210161Speter /* ========== set hi_mr2 ========== */ 128310161Speter val = 0; 128410015Speter if (cflag & CSTOPB) /* Stop bits */ 128510161Speter val |= MR2_2_STOP; 128610015Speter else 128710161Speter val |= MR2_1_STOP; 128810161Speter /* 128910161Speter * Enable H/W RTS/CTS handshaking. The default TA/MTA is 129010161Speter * a DCE, hence the reverse sense of RTS and CTS 129110161Speter */ 129210161Speter /* Output Flow - RTS must be raised before data can be sent */ 129310161Speter if (cflag & CCTS_OFLOW) 129410161Speter val |= MR2_RTSCONT; 129510161Speter 129616575Speter ccbp->hi_mr2 = val; 129710161Speter 129810161Speter /* ========== set hi_mr1 ========== */ 129910161Speter val = 0; 130010015Speter if (!(cflag & PARENB)) /* Parity */ 130110161Speter val |= MR1_NONE; 130210015Speter else 130310161Speter val |= MR1_WITH; 130410015Speter if (cflag & PARODD) 130510161Speter val |= MR1_ODD; 130610015Speter 130710015Speter if ((cflag & CS8) == CS8) { /* 8 data bits? */ 130810161Speter val |= MR1_8_BITS; 130910015Speter } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 131010161Speter val |= MR1_7_BITS; 131110015Speter } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 131210161Speter val |= MR1_6_BITS; 131310015Speter } else { /* Must be 5 */ 131410161Speter val |= MR1_5_BITS; 131510015Speter } 131610161Speter /* 131710161Speter * Enable H/W RTS/CTS handshaking. The default TA/MTA is 131810161Speter * a DCE, hence the reverse sense of RTS and CTS 131910161Speter */ 132010161Speter /* Input Flow - CTS is raised when port is ready to receive data */ 132110161Speter if (cflag & CRTS_IFLOW) 132210161Speter val |= MR1_CTSCONT; 132310015Speter 132410161Speter ccbp->hi_mr1 = val; 132510161Speter 132610161Speter /* ========== set hi_mask ========== */ 132710161Speter val = 0xff; 132810161Speter if ((cflag & CS8) == CS8) { /* 8 data bits? */ 132910161Speter val &= 0xFF; 133010161Speter } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ 133110161Speter val &= 0x7F; 133210161Speter } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ 133310161Speter val &= 0x3F; 133410161Speter } else { /* Must be 5 */ 133510161Speter val &= 0x1F; 133610161Speter } 133710015Speter if (iflag & ISTRIP) 133810161Speter val &= 0x7F; 133910015Speter 134010161Speter ccbp->hi_mask = val; 134110161Speter 134210161Speter /* ========== set hi_prtcl ========== */ 134356592Speter val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */ 134410161Speter if (iflag & IXANY) 134510161Speter val |= SP_TANY; 134610161Speter if (iflag & IXON) 134710161Speter val |= SP_TXEN; 134810161Speter if (iflag & IXOFF) 134910161Speter val |= SP_RXEN; 135010161Speter if (iflag & INPCK) 135110161Speter val |= SP_PAEN; 135210015Speter 135310161Speter ccbp->hi_prtcl = val; 135410161Speter 135510161Speter 135610161Speter /* ========== set hi_{rx|tx}{on|off} ========== */ 135710161Speter /* XXX: the card TOTALLY shields us from the flow control... */ 135810015Speter ccbp->hi_txon = t->c_cc[VSTART]; 135910015Speter ccbp->hi_txoff = t->c_cc[VSTOP]; 136010015Speter 136110015Speter ccbp->hi_rxon = t->c_cc[VSTART]; 136210015Speter ccbp->hi_rxoff = t->c_cc[VSTOP]; 136310015Speter 136410161Speter /* ========== send settings to the card ========== */ 136510015Speter /* potential sleep here */ 136610015Speter if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */ 136710015Speter si_command(pp, LOPEN, SI_WAIT); /* open it */ 136810015Speter else 136910015Speter si_command(pp, CONFIG, SI_WAIT); /* change params */ 137010015Speter 137110161Speter /* ========== set DTR etc ========== */ 137210015Speter /* Hangup if ospeed == 0 */ 137310015Speter if (t->c_ospeed == 0) { 137410015Speter (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); 137510015Speter } else { 137610015Speter /* 137710015Speter * If the previous speed was 0, may need to re-enable 137834832Speter * the modem signals 137934832Speter */ 138010015Speter (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); 138110015Speter } 138210015Speter 138310044Speter DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x\n", 138410044Speter ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break)); 138510015Speter 138610015Speter splx(oldspl); 138710015Speter return(error); 138810015Speter} 138910015Speter 139010015Speter/* 139110015Speter * Enable or Disable the writes to this channel... 139210015Speter * "state" -> enabled = 1; disabled = 0; 139310015Speter */ 139410015Speterstatic void 139556498Spetersi_write_enable(struct si_port *pp, int state) 139610015Speter{ 139710015Speter int oldspl; 139810015Speter 139910015Speter oldspl = spltty(); 140010015Speter 140110015Speter if (state) { 140210015Speter pp->sp_state &= ~SS_BLOCKWRITE; 140310015Speter if (pp->sp_state & SS_WAITWRITE) { 140410015Speter pp->sp_state &= ~SS_WAITWRITE; 140510015Speter /* thunder away! */ 1406111748Sdes wakeup(pp); 140710015Speter } 140810015Speter } else { 140910015Speter pp->sp_state |= SS_BLOCKWRITE; 141010015Speter } 141110015Speter 141210015Speter splx(oldspl); 141310015Speter} 141410015Speter 141510015Speter/* 141610015Speter * Set/Get state of modem control lines. 141710015Speter * Due to DCE-like behaviour of the adapter, some signals need translation: 141810015Speter * TIOCM_DTR DSR 141910015Speter * TIOCM_RTS CTS 142010015Speter */ 142110015Speterstatic int 142256498Spetersi_modem(struct si_port *pp, enum si_mctl cmd, int bits) 142310015Speter{ 142410015Speter volatile struct si_channel *ccbp; 142510015Speter int x; 142610015Speter 142710015Speter DPRINT((pp, DBG_ENTRY|DBG_MODEM, "si_modem(%x,%s,%x)\n", pp, si_mctl2str(cmd), bits)); 142810015Speter ccbp = pp->sp_ccb; /* Find channel address */ 142910015Speter switch (cmd) { 143010015Speter case GET: 143110015Speter x = ccbp->hi_ip; 143210015Speter bits = TIOCM_LE; 143310015Speter if (x & IP_DCD) bits |= TIOCM_CAR; 143410015Speter if (x & IP_DTR) bits |= TIOCM_DTR; 143510015Speter if (x & IP_RTS) bits |= TIOCM_RTS; 143610015Speter if (x & IP_RI) bits |= TIOCM_RI; 143710015Speter return(bits); 143810015Speter case SET: 143910015Speter ccbp->hi_op &= ~(OP_DSR|OP_CTS); 144010015Speter /* fall through */ 144110015Speter case BIS: 144210015Speter x = 0; 144310015Speter if (bits & TIOCM_DTR) 144410015Speter x |= OP_DSR; 144510015Speter if (bits & TIOCM_RTS) 144610015Speter x |= OP_CTS; 144710015Speter ccbp->hi_op |= x; 144810015Speter break; 144910015Speter case BIC: 145010015Speter if (bits & TIOCM_DTR) 145110015Speter ccbp->hi_op &= ~OP_DSR; 145210015Speter if (bits & TIOCM_RTS) 145310015Speter ccbp->hi_op &= ~OP_CTS; 145410015Speter } 145510015Speter return 0; 145610015Speter} 145710015Speter 145810015Speter/* 145910015Speter * Handle change of modem state 146010015Speter */ 146110015Speterstatic void 146256498Spetersi_modem_state(struct si_port *pp, struct tty *tp, int hi_ip) 146310015Speter{ 146410015Speter /* if a modem dev */ 146510015Speter if (hi_ip & IP_DCD) { 146650442Speter if (!(pp->sp_last_hi_ip & IP_DCD)) { 146710015Speter DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n", 146810015Speter tp->t_line)); 1469130077Sphk (void)ttyld_modem(tp, 1); 147010015Speter } 147110015Speter } else { 147210015Speter if (pp->sp_last_hi_ip & IP_DCD) { 147310015Speter DPRINT((pp, DBG_INTR, "modem carr off\n")); 1474130077Sphk if (ttyld_modem(tp, 0)) 147510015Speter (void) si_modem(pp, SET, 0); 147610015Speter } 147710015Speter } 147810015Speter pp->sp_last_hi_ip = hi_ip; 147910015Speter 148010015Speter} 148110015Speter 148210015Speter/* 148310015Speter * Poller to catch missed interrupts. 148412174Speter * 148512496Speter * Note that the SYSV Specialix drivers poll at 100 times per second to get 148612496Speter * better response. We could really use a "periodic" version timeout(). :-) 148710015Speter */ 148810015Speter#ifdef POLL 148910708Speterstatic void 149010015Spetersi_poll(void *nothing) 149110015Speter{ 149256498Speter struct si_softc *sc; 149356498Speter int i; 149410015Speter volatile struct si_reg *regp; 149556498Speter struct si_port *pp; 149612174Speter int lost, oldspl, port; 149710015Speter 149810015Speter DPRINT((0, DBG_POLL, "si_poll()\n")); 149911609Speter oldspl = spltty(); 150010015Speter if (in_intr) 150110015Speter goto out; 150210015Speter lost = 0; 150356498Speter for (i = 0; i < si_numunits; i++) { 150456498Speter sc = devclass_get_softc(si_devclass, i); 150556498Speter if (sc == NULL || sc->sc_type == SIEMPTY) 150610015Speter continue; 150710015Speter regp = (struct si_reg *)sc->sc_maddr; 150834832Speter 150910015Speter /* 151010015Speter * See if there has been a pending interrupt for 2 seconds 151133395Speter * or so. The test (int_scounter >= 200) won't correspond 151210015Speter * to 2 seconds if int_count gets changed. 151310015Speter */ 151410015Speter if (regp->int_pending != 0) { 151510015Speter if (regp->int_scounter >= 200 && 151610015Speter regp->initstat == 1) { 151712174Speter printf("si%d: lost intr\n", i); 151810015Speter lost++; 151910015Speter } 152010015Speter } else { 152110015Speter regp->int_scounter = 0; 152210015Speter } 152310015Speter 152412174Speter /* 152512174Speter * gripe about no input flow control.. 152612174Speter */ 152712174Speter pp = sc->sc_ports; 152812174Speter for (port = 0; port < sc->sc_nport; pp++, port++) { 152912174Speter if (pp->sp_delta_overflows > 0) { 153012174Speter printf("si%d: %d tty level buffer overflows\n", 153112174Speter i, pp->sp_delta_overflows); 153212174Speter pp->sp_delta_overflows = 0; 153312174Speter } 153412174Speter } 153510015Speter } 153617547Speter if (lost || si_realpoll) 153756498Speter si_intr(NULL); /* call intr with fake vector */ 153811609Speterout: 153910015Speter splx(oldspl); 154010015Speter 154115639Speter timeout(si_poll, (caddr_t)0L, si_pollrate); 154210015Speter} 154310015Speter#endif /* ifdef POLL */ 154410015Speter 154510015Speter/* 154610015Speter * The interrupt handler polls ALL ports on ALL adapters each time 154710015Speter * it is called. 154810015Speter */ 154910015Speter 155012496Speterstatic BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */ 155134832Speterstatic BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */ 155210015Speter 155356505Spetervoid 155456498Spetersi_intr(void *arg) 155510015Speter{ 155656498Speter struct si_softc *sc; 155756498Speter struct si_port *pp; 155810015Speter volatile struct si_channel *ccbp; 155956498Speter struct tty *tp; 156010015Speter volatile caddr_t maddr; 156111872Sphk BYTE op, ip; 156212174Speter int x, card, port, n, i, isopen; 156310015Speter volatile BYTE *z; 156410015Speter BYTE c; 156510015Speter 156656498Speter sc = arg; 156756498Speter 156856498Speter DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n")); 156956498Speter if (in_intr) 157010708Speter return; 157110015Speter in_intr = 1; 157210015Speter 157310015Speter /* 157410015Speter * When we get an int we poll all the channels and do ALL pending 157510015Speter * work, not just the first one we find. This allows all cards to 157610015Speter * share the same vector. 157734832Speter * 157834832Speter * XXX - But if we're sharing the vector with something that's NOT 157934832Speter * a SI/XIO/SX card, we may be making more work for ourselves. 158010015Speter */ 158156498Speter for (card = 0; card < si_numunits; card++) { 158256498Speter sc = devclass_get_softc(si_devclass, card); 158356498Speter if (sc == NULL || sc->sc_type == SIEMPTY) 158410015Speter continue; 158512174Speter 158612174Speter /* 158712174Speter * First, clear the interrupt 158812174Speter */ 158910015Speter switch(sc->sc_type) { 159034832Speter case SIHOST: 159110015Speter maddr = sc->sc_maddr; 159210015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 159310015Speter /* flag nothing pending */ 159410015Speter *(maddr+SIINTCL) = 0x00; /* Set IRQ clear */ 159510015Speter *(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */ 159610015Speter break; 159710015Speter case SIHOST2: 159810015Speter maddr = sc->sc_maddr; 159910015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 160010015Speter *(maddr+SIPLIRQCLR) = 0x00; 160110015Speter *(maddr+SIPLIRQCLR) = 0x10; 160210015Speter break; 160333395Speter case SIPCI: 160433395Speter maddr = sc->sc_maddr; 160533395Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 160633395Speter *(maddr+SIPCIINTCL) = 0x0; 160733395Speter break; 160834832Speter case SIJETPCI: /* fall through to JETISA case */ 160933395Speter case SIJETISA: 161033395Speter maddr = sc->sc_maddr; 161133395Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 161233395Speter *(maddr+SIJETINTCL) = 0x0; 161333395Speter break; 161410015Speter case SIEISA: 161510015Speter maddr = sc->sc_maddr; 161610015Speter ((volatile struct si_reg *)maddr)->int_pending = 0; 161756498Speter (void)inb(sc->sc_iobase + 3); 161810015Speter break; 161910015Speter case SIEMPTY: 162010015Speter default: 162110015Speter continue; 162210015Speter } 162310015Speter ((volatile struct si_reg *)maddr)->int_scounter = 0; 162410015Speter 162512174Speter /* 162612174Speter * check each port 162712174Speter */ 162850442Speter for (pp = sc->sc_ports, port = 0; port < sc->sc_nport; 162934832Speter pp++, port++) { 163010015Speter ccbp = pp->sp_ccb; 163110015Speter tp = pp->sp_tty; 163210015Speter 163310015Speter /* 163410015Speter * See if a command has completed ? 163510015Speter */ 163610015Speter if (ccbp->hi_stat != pp->sp_pend) { 163710015Speter DPRINT((pp, DBG_INTR, 163834735Speter "si_intr hi_stat = 0x%x, pend = %d\n", 163910015Speter ccbp->hi_stat, pp->sp_pend)); 164010015Speter switch(pp->sp_pend) { 164110015Speter case LOPEN: 164210015Speter case MPEND: 164310015Speter case MOPEN: 164410015Speter case CONFIG: 164516575Speter case SBREAK: 164616575Speter case EBREAK: 164710015Speter pp->sp_pend = ccbp->hi_stat; 164810015Speter /* sleeping in si_command */ 164910015Speter wakeup(&pp->sp_state); 165010015Speter break; 165110015Speter default: 165210015Speter pp->sp_pend = ccbp->hi_stat; 165310015Speter } 165434832Speter } 165510015Speter 165610015Speter /* 165710015Speter * Continue on if it's closed 165810015Speter */ 165910015Speter if (ccbp->hi_stat == IDLE_CLOSE) { 166010015Speter continue; 166110015Speter } 166210015Speter 166310015Speter /* 166410015Speter * Do modem state change if not a local device 166510015Speter */ 166610015Speter si_modem_state(pp, tp, ccbp->hi_ip); 166710015Speter 166810015Speter /* 166934832Speter * Check to see if we should 'receive' characters. 167012174Speter */ 167112174Speter if (tp->t_state & TS_CONNECTED && 167212174Speter tp->t_state & TS_ISOPEN) 167312174Speter isopen = 1; 167412174Speter else 167512174Speter isopen = 0; 167612174Speter 167712174Speter /* 167816575Speter * Do input break processing 167910015Speter */ 168010015Speter if (ccbp->hi_state & ST_BREAK) { 168112174Speter if (isopen) { 1682130077Sphk ttyld_rint(tp, TTY_BI); 168310015Speter } 168410015Speter ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */ 168510015Speter DPRINT((pp, DBG_INTR, "si_intr break\n")); 168610015Speter } 168710015Speter 168810015Speter /* 168912174Speter * Do RX stuff - if not open then dump any characters. 169012174Speter * XXX: This is VERY messy and needs to be cleaned up. 169112174Speter * 169212174Speter * XXX: can we leave data in the host adapter buffer 169312174Speter * when the clists are full? That may be dangerous 169412174Speter * if the user cannot get an interrupt signal through. 169510015Speter */ 169610015Speter 169712174Speter more_rx: /* XXX Sorry. the nesting was driving me bats! :-( */ 169812174Speter 169912174Speter if (!isopen) { 170010015Speter ccbp->hi_rxopos = ccbp->hi_rxipos; 170112174Speter goto end_rx; 170212174Speter } 170310015Speter 170412174Speter /* 170515640Speter * If the tty input buffers are blocked, stop emptying 170615640Speter * the incoming buffers and let the auto flow control 170715640Speter * assert.. 170815640Speter */ 170915640Speter if (tp->t_state & TS_TBLOCK) { 171015640Speter goto end_rx; 171115640Speter } 171215640Speter 171315640Speter /* 171412174Speter * Process read characters if not skipped above 171512174Speter */ 171615640Speter op = ccbp->hi_rxopos; 171715640Speter ip = ccbp->hi_rxipos; 171815640Speter c = ip - op; 171912174Speter if (c == 0) { 172012174Speter goto end_rx; 172112174Speter } 172210015Speter 172312174Speter n = c & 0xff; 172415640Speter if (n > 250) 172515640Speter n = 250; 172612174Speter 172712174Speter DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 172810015Speter n, op, ip)); 172910015Speter 173012174Speter /* 173112174Speter * Suck characters out of host card buffer into the 173212174Speter * "input staging buffer" - so that we dont leave the 173312174Speter * host card in limbo while we're possibly echoing 173412174Speter * characters and possibly flushing input inside the 173512174Speter * ldisc l_rint() routine. 173612174Speter */ 173712496Speter if (n <= SI_BUFFERSIZE - op) { 173810015Speter 173912174Speter DPRINT((pp, DBG_INTR, "\tsingle copy\n")); 174012174Speter z = ccbp->hi_rxbuf + op; 174150442Speter si_vbcopy(z, si_rxbuf, n); 174210015Speter 174312174Speter op += n; 174412174Speter } else { 174512496Speter x = SI_BUFFERSIZE - op; 174610015Speter 174712174Speter DPRINT((pp, DBG_INTR, "\tdouble part 1 %d\n", x)); 174812174Speter z = ccbp->hi_rxbuf + op; 174950442Speter si_vbcopy(z, si_rxbuf, x); 175010015Speter 175134832Speter DPRINT((pp, DBG_INTR, "\tdouble part 2 %d\n", 175234832Speter n - x)); 175312174Speter z = ccbp->hi_rxbuf; 175450442Speter si_vbcopy(z, si_rxbuf + x, n - x); 175510015Speter 175612174Speter op += n; 175712174Speter } 175810015Speter 175912174Speter /* clear collected characters from buffer */ 176012174Speter ccbp->hi_rxopos = op; 176112174Speter 176212174Speter DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", 176310015Speter n, op, ip)); 176410015Speter 176512174Speter /* 176612174Speter * at this point... 176712174Speter * n = number of chars placed in si_rxbuf 176812174Speter */ 176910015Speter 177012174Speter /* 177112174Speter * Avoid the grotesquely inefficient lineswitch 177212174Speter * routine (ttyinput) in "raw" mode. It usually 177312174Speter * takes about 450 instructions (that's without 177412174Speter * canonical processing or echo!). slinput is 177512174Speter * reasonably fast (usually 40 instructions 177612174Speter * plus call overhead). 177712174Speter */ 177812174Speter if (tp->t_state & TS_CAN_BYPASS_L_RINT) { 177910015Speter 178012174Speter /* block if the driver supports it */ 178150442Speter if (tp->t_rawq.c_cc + n >= SI_I_HIGH_WATER && 178250442Speter (tp->t_cflag & CRTS_IFLOW || 178350442Speter tp->t_iflag & IXOFF) && 178450442Speter !(tp->t_state & TS_TBLOCK)) 178512174Speter ttyblock(tp); 178610015Speter 178712174Speter tk_nin += n; 178812174Speter tk_rawcc += n; 178912174Speter tp->t_rawcc += n; 179012174Speter 179112174Speter pp->sp_delta_overflows += 179212174Speter b_to_q((char *)si_rxbuf, n, &tp->t_rawq); 179312174Speter 179412174Speter ttwakeup(tp); 179550442Speter if (tp->t_state & TS_TTSTOP && 179650442Speter (tp->t_iflag & IXANY || 179750442Speter tp->t_cc[VSTART] == tp->t_cc[VSTOP])) { 179812174Speter tp->t_state &= ~TS_TTSTOP; 179912174Speter tp->t_lflag &= ~FLUSHO; 180012174Speter si_start(tp); 180112174Speter } 180212174Speter } else { 180312174Speter /* 180412174Speter * It'd be nice to not have to go through the 180512174Speter * function call overhead for each char here. 180612174Speter * It'd be nice to block input it, saving a 180712174Speter * loop here and the call/return overhead. 180812174Speter */ 180912174Speter for(x = 0; x < n; x++) { 181012174Speter i = si_rxbuf[x]; 1811130077Sphk if (ttyld_rint(tp, i) 181212174Speter == -1) { 181312174Speter pp->sp_delta_overflows++; 181410015Speter } 181512174Speter } 181612174Speter } 181712174Speter goto more_rx; /* try for more until RXbuf is empty */ 181810015Speter 181912174Speter end_rx: /* XXX: Again, sorry about the gotos.. :-) */ 182010015Speter 182110015Speter /* 182210015Speter * Do TX stuff 182310015Speter */ 1824130077Sphk ttyld_start(tp); 182510015Speter 182610015Speter } /* end of for (all ports on this controller) */ 182710015Speter } /* end of for (all controllers) */ 182810015Speter 182911609Speter in_intr = 0; 183056498Speter DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n")); 183110015Speter} 183210015Speter 183310015Speter/* 183410015Speter * Nudge the transmitter... 183512174Speter * 183612174Speter * XXX: I inherited some funny code here. It implies the host card only 183712174Speter * interrupts when the transmit buffer reaches the low-water-mark, and does 183812174Speter * not interrupt when it's actually hits empty. In some cases, we have 183912174Speter * processes waiting for complete drain, and we need to simulate an interrupt 184012174Speter * about when we think the buffer is going to be empty (and retry if not). 184112174Speter * I really am not certain about this... I *need* the hardware manuals. 184210015Speter */ 184310015Speterstatic void 184456498Spetersi_start(struct tty *tp) 184510015Speter{ 184610015Speter struct si_port *pp; 184710015Speter volatile struct si_channel *ccbp; 184856498Speter struct clist *qp; 184910015Speter BYTE ipos; 185010015Speter int nchar; 185110015Speter int oldspl, count, n, amount, buffer_full; 185210015Speter 185310015Speter oldspl = spltty(); 185410015Speter 185510015Speter qp = &tp->t_outq; 185610015Speter pp = TP2PP(tp); 185710015Speter 185810015Speter DPRINT((pp, DBG_ENTRY|DBG_START, 185910015Speter "si_start(%x) t_state %x sp_state %x t_outq.c_cc %d\n", 186010015Speter tp, tp->t_state, pp->sp_state, qp->c_cc)); 186110015Speter 186210015Speter if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP)) 186310015Speter goto out; 186410015Speter 186510015Speter buffer_full = 0; 186610015Speter ccbp = pp->sp_ccb; 186710015Speter 186810015Speter count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 186910015Speter DPRINT((pp, DBG_START, "count %d\n", (BYTE)count)); 187010015Speter 187110015Speter while ((nchar = qp->c_cc) > 0) { 187210015Speter if ((BYTE)count >= 255) { 187310015Speter buffer_full++; 187410015Speter break; 187510015Speter } 187610015Speter amount = min(nchar, (255 - (BYTE)count)); 187710015Speter ipos = (unsigned int)ccbp->hi_txipos; 187834832Speter n = q_to_b(&tp->t_outq, si_txbuf, amount); 187910015Speter /* will it fit in one lump? */ 188034832Speter if ((SI_BUFFERSIZE - ipos) >= n) { 188150442Speter si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n); 188210015Speter } else { 188350442Speter si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], 188434832Speter SI_BUFFERSIZE - ipos); 188550442Speter si_bcopyv(si_txbuf + (SI_BUFFERSIZE - ipos), 188650442Speter &ccbp->hi_txbuf[0], n - (SI_BUFFERSIZE - ipos)); 188710015Speter } 188810015Speter ccbp->hi_txipos += n; 188910015Speter count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; 189010015Speter } 189110015Speter 189210015Speter if (count != 0 && nchar == 0) { 189310015Speter tp->t_state |= TS_BUSY; 189410015Speter } else { 189510015Speter tp->t_state &= ~TS_BUSY; 189610015Speter } 189710015Speter 189810015Speter /* wakeup time? */ 189910015Speter ttwwakeup(tp); 190010015Speter 190110015Speter DPRINT((pp, DBG_START, "count %d, nchar %d, tp->t_state 0x%x\n", 190210015Speter (BYTE)count, nchar, tp->t_state)); 190310015Speter 190434735Speter if (tp->t_state & TS_BUSY) 190510015Speter { 190610015Speter int time; 190710015Speter 190834735Speter time = ttspeedtab(tp->t_ospeed, chartimes); 190934735Speter 191034735Speter if (time > 0) { 191134735Speter if (time < nchar) 191234735Speter time = nchar / time; 191334735Speter else 191434735Speter time = 2; 191510015Speter } else { 191634735Speter DPRINT((pp, DBG_START, 191734735Speter "bad char time value! %d\n", time)); 191834735Speter time = hz/10; 191910015Speter } 192010015Speter 192110015Speter if ((pp->sp_state & (SS_LSTART|SS_INLSTART)) == SS_LSTART) { 192229677Sgibbs untimeout(si_lstart, (caddr_t)pp, pp->lstart_ch); 192310015Speter } else { 192410015Speter pp->sp_state |= SS_LSTART; 192510015Speter } 192610015Speter DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time)); 192729677Sgibbs pp->lstart_ch = timeout(si_lstart, (caddr_t)pp, time); 192810015Speter } 192910015Speter 193010015Speterout: 193110015Speter splx(oldspl); 193210015Speter DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n")); 193310015Speter} 193410015Speter 193510015Speter/* 193610015Speter * Note: called at splsoftclock from the timeout code 193710015Speter * This has to deal with two things... cause wakeups while waiting for 193810015Speter * tty drains on last process exit, and call l_start at about the right 193910015Speter * time for protocols like ppp. 194010015Speter */ 194110015Speterstatic void 194225047Sbdesi_lstart(void *arg) 194310015Speter{ 194456498Speter struct si_port *pp = arg; 194556498Speter struct tty *tp; 194610015Speter int oldspl; 194710015Speter 194810015Speter DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n", 194910015Speter pp, pp->sp_state)); 195010015Speter 195110015Speter oldspl = spltty(); 195210015Speter 195310015Speter if ((pp->sp_state & SS_OPEN) == 0 || (pp->sp_state & SS_LSTART) == 0) { 195410015Speter splx(oldspl); 195510015Speter return; 195610015Speter } 195710015Speter pp->sp_state &= ~SS_LSTART; 195810015Speter pp->sp_state |= SS_INLSTART; 195910015Speter 196010015Speter tp = pp->sp_tty; 196110015Speter 196210015Speter /* deal with the process exit case */ 196310015Speter ttwwakeup(tp); 196410015Speter 196512174Speter /* nudge protocols - eg: ppp */ 1966130077Sphk ttyld_start(tp); 196710015Speter 196810015Speter pp->sp_state &= ~SS_INLSTART; 196910015Speter splx(oldspl); 197010015Speter} 197110015Speter 197210015Speter/* 197310015Speter * Stop output on a line. called at spltty(); 197410015Speter */ 1975105215Sphkstatic void 197656498Spetersi_stop(struct tty *tp, int rw) 197710015Speter{ 197810015Speter volatile struct si_channel *ccbp; 197910015Speter struct si_port *pp; 198010015Speter 198110015Speter pp = TP2PP(tp); 198210015Speter ccbp = pp->sp_ccb; 198310015Speter 198451654Sphk DPRINT((TP2PP(tp), DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw)); 198510015Speter 198610015Speter /* XXX: must check (rw & FWRITE | FREAD) etc flushing... */ 198710015Speter if (rw & FWRITE) { 198810015Speter /* what level are we meant to be flushing anyway? */ 198910015Speter if (tp->t_state & TS_BUSY) { 199010015Speter si_command(TP2PP(tp), WFLUSH, SI_NOWAIT); 199110015Speter tp->t_state &= ~TS_BUSY; 199210015Speter ttwwakeup(tp); /* Bruce???? */ 199310015Speter } 199410015Speter } 199512174Speter#if 1 /* XXX: this doesn't work right yet.. */ 199612174Speter /* XXX: this may have been failing because we used to call l_rint() 199712174Speter * while we were looping based on these two counters. Now, we collect 199812174Speter * the data and then loop stuffing it into l_rint(), making this 199912174Speter * useless. Should we cause this to blow away the staging buffer? 200012174Speter */ 200110015Speter if (rw & FREAD) { 200210015Speter ccbp->hi_rxopos = ccbp->hi_rxipos; 200310015Speter } 200410015Speter#endif 200510015Speter} 200610015Speter 200710015Speter/* 200834832Speter * Issue a command to the host card CPU. 200910015Speter */ 201010015Speter 201110015Speterstatic void 201256498Spetersi_command(struct si_port *pp, int cmd, int waitflag) 201310015Speter{ 201410015Speter int oldspl; 201510015Speter volatile struct si_channel *ccbp = pp->sp_ccb; 201610015Speter int x; 201710015Speter 201810015Speter DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%x,%d): hi_stat 0x%x\n", 201910015Speter pp, cmd, waitflag, ccbp->hi_stat)); 202010015Speter 202110015Speter oldspl = spltty(); /* Keep others out */ 202210015Speter 202310015Speter /* wait until it's finished what it was doing.. */ 202416575Speter /* XXX: sits in IDLE_BREAK until something disturbs it or break 202516575Speter * is turned off. */ 202610015Speter while((x = ccbp->hi_stat) != IDLE_OPEN && 202710015Speter x != IDLE_CLOSE && 202816575Speter x != IDLE_BREAK && 202910015Speter x != cmd) { 203010015Speter if (in_intr) { /* Prevent sleep in intr */ 203110015Speter DPRINT((pp, DBG_PARAM, 203210015Speter "cmd intr collision - completing %d\trequested %d\n", 203310015Speter x, cmd)); 203410015Speter splx(oldspl); 203510015Speter return; 203610015Speter } else if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 203710015Speter "sicmd1", 1)) { 203810015Speter splx(oldspl); 203910015Speter return; 204010015Speter } 204110015Speter } 204216575Speter /* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */ 204310015Speter 204410015Speter /* if there was a pending command, cause a state-change wakeup */ 204516575Speter switch(pp->sp_pend) { 204616575Speter case LOPEN: 204716575Speter case MPEND: 204816575Speter case MOPEN: 204916575Speter case CONFIG: 205016575Speter case SBREAK: 205116575Speter case EBREAK: 205216575Speter wakeup(&pp->sp_state); 205316575Speter break; 205416575Speter default: 205516575Speter break; 205610015Speter } 205710015Speter 205810015Speter pp->sp_pend = cmd; /* New command pending */ 205910015Speter ccbp->hi_stat = cmd; /* Post it */ 206010015Speter 206110015Speter if (waitflag) { 206210015Speter if (in_intr) { /* If in interrupt handler */ 206310015Speter DPRINT((pp, DBG_PARAM, 206410015Speter "attempt to sleep in si_intr - cmd req %d\n", 206510015Speter cmd)); 206610015Speter splx(oldspl); 206710015Speter return; 206816575Speter } else while(ccbp->hi_stat != IDLE_OPEN && 206916575Speter ccbp->hi_stat != IDLE_BREAK) { 207010015Speter if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, TTIPRI|PCATCH, 207110015Speter "sicmd2", 0)) 207210015Speter break; 207310015Speter } 207410015Speter } 207510015Speter splx(oldspl); 207610015Speter} 207710015Speter 207810015Speterstatic void 207956498Spetersi_disc_optim(struct tty *tp, struct termios *t, struct si_port *pp) 208010015Speter{ 208110015Speter /* 208210015Speter * XXX can skip a lot more cases if Smarts. Maybe 208310015Speter * (IGNCR | ISTRIP | IXON) in c_iflag. But perhaps we 208410015Speter * shouldn't skip if (TS_CNTTB | TS_LNCH) is set in t_state. 208510015Speter */ 208650442Speter if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) && 208750442Speter (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) && 208850442Speter (!(t->c_iflag & PARMRK) || 208950442Speter (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) && 209050442Speter !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) && 209150442Speter linesw[tp->t_line].l_rint == ttyinput) 209210015Speter tp->t_state |= TS_CAN_BYPASS_L_RINT; 209310015Speter else 209410015Speter tp->t_state &= ~TS_CAN_BYPASS_L_RINT; 209533322Sphk pp->sp_hotchar = linesw[tp->t_line].l_hotchar; 209650442Speter DPRINT((pp, DBG_OPTIM, "bypass: %s, hotchar: %x\n", 209710161Speter (tp->t_state & TS_CAN_BYPASS_L_RINT) ? "on" : "off", 209810161Speter pp->sp_hotchar)); 209910015Speter} 210010015Speter 210110015Speter 210210015Speter#ifdef SI_DEBUG 210313353Speter 210456505Spetervoid 210513353Spetersi_dprintf(struct si_port *pp, int flags, const char *fmt, ...) 210610015Speter{ 210713353Speter va_list ap; 210813630Sphk 210910015Speter if ((pp == NULL && (si_debug&flags)) || 211010015Speter (pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) { 211134832Speter if (pp != NULL) 211234832Speter printf("%ci%d(%d): ", 's', 211346679Sphk (int)SI_CARD(minor(pp->sp_tty->t_dev)), 211446679Sphk (int)SI_PORT(minor(pp->sp_tty->t_dev))); 211513630Sphk va_start(ap, fmt); 211613630Sphk vprintf(fmt, ap); 211713353Speter va_end(ap); 211810015Speter } 211910015Speter} 212010015Speter 212110015Speterstatic char * 212256498Spetersi_mctl2str(enum si_mctl cmd) 212310015Speter{ 212410015Speter switch (cmd) { 212534832Speter case GET: 212634832Speter return("GET"); 212734832Speter case SET: 212834832Speter return("SET"); 212934832Speter case BIS: 213034832Speter return("BIS"); 213134832Speter case BIC: 213234832Speter return("BIC"); 213310015Speter } 213410015Speter return("BAD"); 213510015Speter} 213612502Sjulian 213712624Speter#endif /* DEBUG */ 213812502Sjulian 213934832Speterstatic char * 214056498Spetersi_modulename(int host_type, int uart_type) 214134832Speter{ 214234832Speter switch (host_type) { 214334832Speter /* Z280 based cards */ 214450442Speter case SIEISA: 214550442Speter case SIHOST2: 214634832Speter case SIHOST: 214734832Speter case SIPCI: 214834832Speter switch (uart_type) { 214934832Speter case 0: 215034832Speter return(" (XIO)"); 215134832Speter case 1: 215234832Speter return(" (SI)"); 215334832Speter } 215434832Speter break; 215534832Speter /* T225 based hosts */ 215634832Speter case SIJETPCI: 215734832Speter case SIJETISA: 215834832Speter switch (uart_type) { 215934832Speter case 0: 216034832Speter return(" (SI)"); 216134832Speter case 40: 216234832Speter return(" (XIO)"); 216336856Sphk case 72: 216436856Sphk return(" (SXDC)"); 216534832Speter } 216634832Speter break; 216734832Speter } 216834832Speter return(""); 216934832Speter} 2170