/*- * Copyright (c) 2001 Brian Somers * based on work by Slawa Olhovchenkov * John Prince * Eric Hernes * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /*- * TODO: * Figure out what the con bios stuff is supposed to do * Test with *LOTS* more cards - I only have a PCI8r and an ISA Xem. */ #include "opt_compat.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static t_open_t digiopen; static d_open_t digicopen; static d_close_t digicclose; static t_ioctl_t digiioctl; static d_ioctl_t digisioctl; static d_ioctl_t digicioctl; static void digistop(struct tty *tp, int rw); static void digibreak(struct tty *tp, int brk); static int digimodem(struct tty *tp, int sigon, int sigoff); static void digi_poll(void *ptr); static void digi_freemoduledata(struct digi_softc *); static void fepcmd(struct digi_p *port, int cmd, int op, int ncmds); static void digistart(struct tty *tp); static int digiparam(struct tty *tp, struct termios *t); static void digiclose(struct tty *tp); static void digi_intr(void *); static int digi_init(struct digi_softc *_sc); static int digi_loadmoduledata(struct digi_softc *); static int digi_inuse(struct digi_softc *); static void digi_free_state(struct digi_softc *); #define fepcmd_b(port, cmd, op1, op2, ncmds) \ fepcmd(port, cmd, (op2 << 8) | op1, ncmds) #define fepcmd_w fepcmd struct con_bios { struct con_bios *next; u_char *bios; size_t size; }; static struct con_bios *con_bios_list; devclass_t digi_devclass; static char driver_name[] = "digi"; unsigned digi_debug = 0; static struct speedtab digispeedtab[] = { { 0, 0}, /* old (sysV-like) Bx codes */ { 50, 1}, { 75, 2}, { 110, 3}, { 134, 4}, { 150, 5}, { 200, 6}, { 300, 7}, { 600, 8}, { 1200, 9}, { 1800, 10}, { 2400, 11}, { 4800, 12}, { 9600, 13}, { 19200, 14}, { 38400, 15}, { 57600, (02000 | 1)}, { 76800, (02000 | 2)}, { 115200, (02000 | 3)}, { 230400, (02000 | 6)}, { -1, -1} }; const struct digi_control_signals digi_xixe_signals = { 0x02, 0x08, 0x10, 0x20, 0x40, 0x80 }; const struct digi_control_signals digi_normal_signals = { 0x02, 0x80, 0x20, 0x10, 0x40, 0x01 }; static struct cdevsw digi_csw = { .d_version = D_VERSION, .d_open = digicopen, .d_close = digicclose, .d_ioctl = digicioctl, .d_name = driver_name, .d_flags = D_TTY | D_NEEDGIANT, }; static void digi_poll(void *ptr) { struct digi_softc *sc; sc = (struct digi_softc *)ptr; callout_handle_init(&sc->callout); digi_intr(sc); sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); } static void digi_int_test(void *v) { struct digi_softc *sc = v; callout_handle_init(&sc->inttest); #ifdef DIGI_INTERRUPT if (sc->intr_timestamp.tv_sec || sc->intr_timestamp.tv_usec) { /* interrupt OK! */ return; } log(LOG_ERR, "digi%d: Interrupt didn't work, use polled mode\n", unit); #endif sc->callout = timeout(digi_poll, sc, (hz >= 200) ? hz / 100 : 1); } static void digi_freemoduledata(struct digi_softc *sc) { if (sc->fep.data != NULL) { free(sc->fep.data, M_TTYS); sc->fep.data = NULL; } if (sc->link.data != NULL) { free(sc->link.data, M_TTYS); sc->link.data = NULL; } if (sc->bios.data != NULL) { free(sc->bios.data, M_TTYS); sc->bios.data = NULL; } } static int digi_bcopy(const void *vfrom, void *vto, size_t sz) { volatile const char *from = (volatile const char *)vfrom; volatile char *to = (volatile char *)vto; size_t i; for (i = 0; i < sz; i++) *to++ = *from++; from = (const volatile char *)vfrom; to = (volatile char *)vto; for (i = 0; i < sz; i++) if (*to++ != *from++) return (0); return (1); } void digi_delay(struct digi_softc *sc, const char *txt, u_long timo) { if (cold) DELAY(timo * 1000000 / hz); else tsleep(sc, PUSER | PCATCH, txt, timo); } static int digi_init(struct digi_softc *sc) { int i, cnt, resp; u_char *ptr; int lowwater; struct digi_p *port; volatile struct board_chan *bc; struct tty *tp; ptr = NULL; if (sc->status == DIGI_STATUS_DISABLED) { log(LOG_ERR, "digi%d: Cannot init a disabled card\n", sc->res.unit); return (EIO); } if (sc->bios.data == NULL) { log(LOG_ERR, "digi%d: Cannot init without BIOS\n", sc->res.unit); return (EIO); } #if 0 if (sc->link.data == NULL && sc->model >= PCCX) { log(LOG_ERR, "digi%d: Cannot init without link info\n", sc->res.unit); return (EIO); } #endif if (sc->fep.data == NULL) { log(LOG_ERR, "digi%d: Cannot init without fep code\n", sc->res.unit); return (EIO); } sc->status = DIGI_STATUS_NOTINIT; if (sc->numports) { /* * We're re-initialising - maybe because someone's attached * another port module. For now, we just re-initialise * everything. */ if (digi_inuse(sc)) return (EBUSY); digi_free_state(sc); } ptr = sc->setwin(sc, MISCGLOBAL); for (i = 0; i < 16; i += 2) vW(ptr + i) = 0; switch (sc->model) { case PCXEVE: outb(sc->wport, 0xff); /* window 7 */ ptr = sc->vmem + (BIOSCODE & 0x1fff); if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { device_printf(sc->dev, "BIOS upload failed\n"); return (EIO); } outb(sc->port, FEPCLR); break; case PCXE: case PCXI: case PCCX: ptr = sc->setwin(sc, BIOSCODE + ((0xf000 - sc->mem_seg) << 4)); if (!digi_bcopy(sc->bios.data, ptr, sc->bios.size)) { device_printf(sc->dev, "BIOS upload failed\n"); return (EIO); } break; case PCXEM: case PCIEPCX: case PCIXR: if (sc->pcibus) PCIPORT = FEPRST; else outb(sc->port, FEPRST | FEPMEM); for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & FEPMASK) != FEPRST; i++) { if (i > hz) { log(LOG_ERR, "digi%d: %s init reset failed\n", sc->res.unit, sc->name); return (EIO); } digi_delay(sc, "digiinit0", 5); } DLOG(DIGIDB_INIT, (sc->dev, "Got init reset after %d us\n", i)); /* Now upload the BIOS */ cnt = (sc->bios.size < sc->win_size - BIOSOFFSET) ? sc->bios.size : sc->win_size - BIOSOFFSET; ptr = sc->setwin(sc, BIOSOFFSET); if (!digi_bcopy(sc->bios.data, ptr, cnt)) { device_printf(sc->dev, "BIOS upload (1) failed\n"); return (EIO); } if (cnt != sc->bios.size) { /* and the second part */ ptr = sc->setwin(sc, sc->win_size); if (!digi_bcopy(sc->bios.data + cnt, ptr, sc->bios.size - cnt)) { device_printf(sc->dev, "BIOS upload failed\n"); return (EIO); } } ptr = sc->setwin(sc, 0); vW(ptr + 0) = 0x0401; vW(ptr + 2) = 0x0bf0; vW(ptr + 4) = 0x0000; vW(ptr + 6) = 0x0000; break; } DLOG(DIGIDB_INIT, (sc->dev, "BIOS uploaded\n")); ptr = sc->setwin(sc, MISCGLOBAL); W(ptr) = 0; if (sc->pcibus) { PCIPORT = FEPCLR; resp = FEPRST; } else if (sc->model == PCXEVE) { outb(sc->port, FEPCLR); resp = FEPRST; } else { outb(sc->port, FEPCLR | FEPMEM); resp = FEPRST | FEPMEM; } for (i = 0; ((sc->pcibus ? PCIPORT : inb(sc->port)) & FEPMASK) == resp; i++) { if (i > hz) { log(LOG_ERR, "digi%d: BIOS start failed\n", sc->res.unit); return (EIO); } digi_delay(sc, "digibios0", 5); } DLOG(DIGIDB_INIT, (sc->dev, "BIOS started after %d us\n", i)); for (i = 0; vW(ptr) != *(u_short *)"GD"; i++) { if (i > 5*hz) { log(LOG_ERR, "digi%d: BIOS boot failed " "(0x%02x != 0x%02x)\n", sc->res.unit, vW(ptr), *(u_short *)"GD"); return (EIO); } digi_delay(sc, "digibios1", 5); } DLOG(DIGIDB_INIT, (sc->dev, "BIOS booted after %d iterations\n", i)); if (sc->link.data != NULL) { DLOG(DIGIDB_INIT, (sc->dev, "Loading link data\n")); ptr = sc->setwin(sc, 0xcd0); digi_bcopy(sc->link.data, ptr, 21); /* XXX 21 ? */ } /* load FEP/OS */ switch (sc->model) { case PCXE: case PCXEVE: case PCXI: ptr = sc->setwin(sc, sc->model == PCXI ? 0x2000 : 0x0); digi_bcopy(sc->fep.data, ptr, sc->fep.size); /* A BIOS request to move our data to 0x2000 */ ptr = sc->setwin(sc, MBOX); vW(ptr + 0) = 2; vW(ptr + 2) = sc->mem_seg + FEPCODESEG; vW(ptr + 4) = 0; vW(ptr + 6) = FEPCODESEG; vW(ptr + 8) = 0; vW(ptr + 10) = sc->fep.size; /* Run the BIOS request */ outb(sc->port, FEPREQ | FEPMEM); outb(sc->port, FEPCLR | FEPMEM); for (i = 0; W(ptr); i++) { if (i > hz) { log(LOG_ERR, "digi%d: FEP/OS move failed\n", sc->res.unit); sc->hidewin(sc); return (EIO); } digi_delay(sc, "digifep0", 5); } DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS moved after %d iterations\n", i)); /* Clear the confirm word */ ptr = sc->setwin(sc, FEPSTAT); vW(ptr + 0) = 0; /* A BIOS request to execute the FEP/OS */ ptr = sc->setwin(sc, MBOX); vW(ptr + 0) = 0x01; vW(ptr + 2) = FEPCODESEG; vW(ptr + 4) = 0x04; /* Run the BIOS request */ outb(sc->port, FEPREQ); outb(sc->port, FEPCLR); ptr = sc->setwin(sc, FEPSTAT); break; case PCXEM: case PCIEPCX: case PCIXR: DLOG(DIGIDB_INIT, (sc->dev, "Loading FEP/OS\n")); cnt = (sc->fep.size < sc->win_size - BIOSOFFSET) ? sc->fep.size : sc->win_size - BIOSOFFSET; ptr = sc->setwin(sc, BIOSOFFSET); digi_bcopy(sc->fep.data, ptr, cnt); if (cnt != sc->fep.size) { ptr = sc->setwin(sc, BIOSOFFSET + cnt); digi_bcopy(sc->fep.data + cnt, ptr, sc->fep.size - cnt); } DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS loaded\n")); ptr = sc->setwin(sc, 0xc30); W(ptr + 4) = 0x1004; W(ptr + 6) = 0xbfc0; W(ptr + 0) = 0x03; W(ptr + 2) = 0x00; /* Clear the confirm word */ ptr = sc->setwin(sc, FEPSTAT); W(ptr + 0) = 0; if (sc->port) outb(sc->port, 0); /* XXX necessary ? */ break; case PCCX: ptr = sc->setwin(sc, 0xd000); digi_bcopy(sc->fep.data, ptr, sc->fep.size); /* A BIOS request to execute the FEP/OS */ ptr = sc->setwin(sc, 0xc40); W(ptr + 0) = 1; W(ptr + 2) = FEPCODE >> 4; W(ptr + 4) = 4; /* Clear the confirm word */ ptr = sc->setwin(sc, FEPSTAT); W(ptr + 0) = 0; /* Run the BIOS request */ outb(sc->port, FEPREQ | FEPMEM); /* send interrupt to BIOS */ outb(sc->port, FEPCLR | FEPMEM); break; } /* Now wait 'till the FEP/OS has booted */ for (i = 0; vW(ptr) != *(u_short *)"OS"; i++) { if (i > 2*hz) { log(LOG_ERR, "digi%d: FEP/OS start failed " "(0x%02x != 0x%02x)\n", sc->res.unit, vW(ptr), *(u_short *)"OS"); sc->hidewin(sc); return (EIO); } digi_delay(sc, "digifep1", 5); } DLOG(DIGIDB_INIT, (sc->dev, "FEP/OS started after %d iterations\n", i)); if (sc->model >= PCXEM) { ptr = sc->setwin(sc, 0xe04); vW(ptr) = 2; ptr = sc->setwin(sc, 0xc02); sc->numports = vW(ptr); } else { ptr = sc->setwin(sc, 0xc22); sc->numports = vW(ptr); } if (sc->numports == 0) { device_printf(sc->dev, "%s, 0 ports found\n", sc->name); sc->hidewin(sc); return (0); } device_printf(sc->dev, "%s, %d ports found\n", sc->name, sc->numports); if (sc->ports) free(sc->ports, M_TTYS); sc->ports = malloc(sizeof(struct digi_p) * sc->numports, M_TTYS, M_WAITOK | M_ZERO); /* * XXX Should read port 0xc90 for an array of 2byte values, 1 per * port. If the value is 0, the port is broken.... */ ptr = sc->setwin(sc, 0); /* We should now init per-port structures */ bc = (volatile struct board_chan *)(ptr + CHANSTRUCT); sc->gdata = (volatile struct global_data *)(ptr + FEP_GLOBAL); sc->memcmd = ptr + sc->gdata->cstart; sc->memevent = ptr + sc->gdata->istart; for (i = 0; i < sc->numports; i++, bc++) { port = sc->ports + i; port->pnum = i; port->sc = sc; port->status = ENABLED; port->bc = bc; tp = port->tp = ttyalloc(); tp->t_oproc = digistart; tp->t_param = digiparam; tp->t_modem = digimodem; tp->t_break = digibreak; tp->t_stop = digistop; tp->t_cioctl = digisioctl; tp->t_ioctl = digiioctl; tp->t_open = digiopen; tp->t_close = digiclose; tp->t_sc = port; if (sc->model == PCXEVE) { port->txbuf = ptr + (((bc->tseg - sc->mem_seg) << 4) & 0x1fff); port->rxbuf = ptr + (((bc->rseg - sc->mem_seg) << 4) & 0x1fff); port->txwin = FEPWIN | ((bc->tseg - sc->mem_seg) >> 9); port->rxwin = FEPWIN | ((bc->rseg - sc->mem_seg) >> 9); } else if (sc->model == PCXI || sc->model == PCXE) { port->txbuf = ptr + ((bc->tseg - sc->mem_seg) << 4); port->rxbuf = ptr + ((bc->rseg - sc->mem_seg) << 4); port->txwin = port->rxwin = 0; } else { port->txbuf = ptr + (((bc->tseg - sc->mem_seg) << 4) % sc->win_size); port->rxbuf = ptr + (((bc->rseg - sc->mem_seg) << 4) % sc->win_size); port->txwin = FEPWIN | (((bc->tseg - sc->mem_seg) << 4) / sc->win_size); port->rxwin = FEPWIN | (((bc->rseg - sc->mem_seg) << 4) / sc->win_size); } port->txbufsize = bc->tmax + 1; port->rxbufsize = bc->rmax + 1; lowwater = port->txbufsize >> 2; if (lowwater > 1024) lowwater = 1024; sc->setwin(sc, 0); fepcmd_w(port, STXLWATER, lowwater, 10); fepcmd_w(port, SRXLWATER, port->rxbufsize >> 2, 10); fepcmd_w(port, SRXHWATER, (3 * port->rxbufsize) >> 2, 10); bc->edelay = 100; ttyinitmode(tp, 0, 0); port->send_ring = 1; /* Default action on signal RI */ ttycreate(tp, NULL, 0, MINOR_CALLOUT, "D%r%r", sc->res.unit, i); } sc->hidewin(sc); sc->inttest = timeout(digi_int_test, sc, hz); /* fepcmd_w(&sc->ports[0], 0xff, 0, 0); */ sc->status = DIGI_STATUS_ENABLED; return (0); } static int digimodem(struct tty *tp, int sigon, int sigoff) { struct digi_softc *sc; struct digi_p *port; int bitand, bitor, mstat; port = tp->t_sc; sc = port->sc; if (sigon == 0 && sigoff == 0) { port->sc->setwin(port->sc, 0); mstat = port->bc->mstat; port->sc->hidewin(port->sc); if (mstat & port->sc->csigs->rts) sigon |= SER_RTS; if (mstat & port->cd) sigon |= SER_DCD; if (mstat & port->dsr) sigon |= SER_DSR; if (mstat & port->sc->csigs->cts) sigon |= SER_CTS; if (mstat & port->sc->csigs->ri) sigon |= SER_RI; if (mstat & port->sc->csigs->dtr) sigon |= SER_DTR; return (sigon); } bitand = 0; bitor = 0; if (sigoff & SER_DTR) bitand |= port->sc->csigs->dtr; if (sigoff & SER_RTS) bitand |= port->sc->csigs->rts; if (sigon & SER_DTR) bitor |= port->sc->csigs->dtr; if (sigon & SER_RTS) bitor |= port->sc->csigs->rts; fepcmd_b(port, SETMODEM, bitor, ~bitand, 0); return (0); } static int digicopen(struct cdev *dev, int flag, int mode, struct thread *td) { struct digi_softc *sc; sc = dev->si_drv1; if (sc->status != DIGI_STATUS_ENABLED) { DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n")); return (ENXIO); } sc->opencnt++; return (0); } static int digiopen(struct tty *tp, struct cdev *dev) { int error; struct digi_softc *sc; struct digi_p *port; volatile struct board_chan *bc; port = tp->t_sc; sc = port->sc; if (sc->status != DIGI_STATUS_ENABLED) { DLOG(DIGIDB_OPEN, (sc->dev, "Cannot open a disabled card\n")); return (ENXIO); } bc = port->bc; /* * The device isn't open, so there are no conflicts. * Initialize it. Initialization is done twice in many * cases: to preempt sleeping callin opens if we are callout, * and to complete a callin open after DCD rises. */ sc->setwin(sc, 0); bc->rout = bc->rin; /* clear input queue */ bc->idata = 1; bc->iempty = 1; bc->ilow = 1; bc->mint = port->cd | port->sc->csigs->ri; bc->tin = bc->tout; if (port->ialtpin) { port->cd = sc->csigs->dsr; port->dsr = sc->csigs->cd; } else { port->cd = sc->csigs->cd; port->dsr = sc->csigs->dsr; } tp->t_wopeners++; /* XXX required ? */ error = digiparam(tp, &tp->t_termios); tp->t_wopeners--; return (error); } static int digicclose(struct cdev *dev, int flag, int mode, struct thread *td) { struct digi_softc *sc; sc = dev->si_drv1; sc->opencnt--; return (0); } static void digidtrwakeup(void *chan) { struct digi_p *port = chan; port->status &= ~DIGI_DTR_OFF; wakeup(&port->tp->t_dtr_wait); port->tp->t_wopeners--; } static void digiclose(struct tty *tp) { volatile struct board_chan *bc; struct digi_p *port; int s; port = tp->t_sc; bc = port->bc; s = spltty(); port->sc->setwin(port->sc, 0); bc->idata = 0; bc->iempty = 0; bc->ilow = 0; bc->mint = 0; if ((tp->t_cflag & HUPCL) || (!tp->t_actout && !(bc->mstat & port->cd) && !(tp->t_init_in.c_cflag & CLOCAL)) || !(tp->t_state & TS_ISOPEN)) { digimodem(tp, 0, SER_DTR | SER_RTS); if (tp->t_dtr_wait != 0) { /* Schedule a wakeup of any callin devices */ tp->t_wopeners++; timeout(&digidtrwakeup, port, tp->t_dtr_wait); port->status |= DIGI_DTR_OFF; } } tp->t_actout = FALSE; wakeup(&tp->t_actout); wakeup(TSA_CARR_ON(tp)); splx(s); } /* * Load module "digi_.ko" and look for a symbol called digi_mod_. * * Populate sc->bios, sc->fep, and sc->link from this data. * * sc->fep.data, sc->bios.data and sc->link.data are malloc()d according * to their respective sizes. * * The module is unloaded when we're done. */ static int digi_loadmoduledata(struct digi_softc *sc) { struct digi_mod *digi_mod; linker_file_t lf; char *modfile, *sym; caddr_t symptr; int modlen, res; KASSERT(sc->bios.data == NULL, ("Uninitialised BIOS variable")); KASSERT(sc->fep.data == NULL, ("Uninitialised FEP variable")); KASSERT(sc->link.data == NULL, ("Uninitialised LINK variable")); KASSERT(sc->module != NULL, ("Uninitialised module name")); modlen = strlen(sc->module); modfile = malloc(modlen + 6, M_TEMP, M_WAITOK); snprintf(modfile, modlen + 6, "digi_%s", sc->module); res = linker_reference_module(modfile, NULL, &lf); if ((res = linker_reference_module(modfile, NULL, &lf)) != 0) printf("%s: Failed %d to autoload module\n", modfile, res); free(modfile, M_TEMP); if (res != 0) return (res); sym = malloc(modlen + 10, M_TEMP, M_WAITOK); snprintf(sym, modlen + 10, "digi_mod_%s", sc->module); symptr = linker_file_lookup_symbol(lf, sym, 0); free(sym, M_TEMP); if (symptr == NULL) { printf("digi_%s.ko: Symbol `%s' not found\n", sc->module, sym); linker_file_unload(lf, LINKER_UNLOAD_FORCE); return (EINVAL); } digi_mod = (struct digi_mod *)symptr; if (digi_mod->dm_version != DIGI_MOD_VERSION) { printf("digi_%s.ko: Invalid version %d (need %d)\n", sc->module, digi_mod->dm_version, DIGI_MOD_VERSION); linker_file_unload(lf, LINKER_UNLOAD_FORCE); return (EINVAL); } sc->bios.size = digi_mod->dm_bios.size; if (sc->bios.size != 0 && digi_mod->dm_bios.data != NULL) { sc->bios.data = malloc(sc->bios.size, M_TTYS, M_WAITOK); bcopy(digi_mod->dm_bios.data, sc->bios.data, sc->bios.size); } sc->fep.size = digi_mod->dm_fep.size; if (sc->fep.size != 0 && digi_mod->dm_fep.data != NULL) { sc->fep.data = malloc(sc->fep.size, M_TTYS, M_WAITOK); bcopy(digi_mod->dm_fep.data, sc->fep.data, sc->fep.size); } sc->link.size = digi_mod->dm_link.size; if (sc->link.size != 0 && digi_mod->dm_link.data != NULL) { sc->link.data = malloc(sc->link.size, M_TTYS, M_WAITOK); bcopy(digi_mod->dm_link.data, sc->link.data, sc->link.size); } linker_file_unload(lf, LINKER_UNLOAD_FORCE); return (0); } static int digisioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td) { struct digi_p *port; struct digi_softc *sc; port = dev->si_drv1; sc = port->sc; switch (cmd) { case DIGIIO_GETALTPIN: if (ISINIT(dev)) *(int *)data = port->ialtpin; else if (ISLOCK(dev)) *(int *)data = port->laltpin; else return (ENOTTY); break; case DIGIIO_SETALTPIN: if (ISINIT(dev)) { if (!port->laltpin) { port->ialtpin = !!*(int *)data; DLOG(DIGIDB_SET, (sc->dev, "port%d: initial ALTPIN %s\n", port->pnum, port->ialtpin ? "set" : "cleared")); } } else if (ISLOCK(dev)) { port->laltpin = !!*(int *)data; DLOG(DIGIDB_SET, (sc->dev, "port%d: ALTPIN %slocked\n", port->pnum, port->laltpin ? "" : "un")); } else return (ENOTTY); break; default: return (ENOTTY); } return (0); } static int digicioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) { int error; struct digi_softc *sc; sc = dev->si_drv1; if (sc->status == DIGI_STATUS_DISABLED) return (ENXIO); switch (cmd) { case DIGIIO_DEBUG: #ifdef DEBUG digi_debug = *(int *)data; return (0); #else device_printf(sc->dev, "DEBUG not defined\n"); return (ENXIO); #endif case DIGIIO_REINIT: digi_loadmoduledata(sc); error = digi_init(sc); digi_freemoduledata(sc); return (error); case DIGIIO_MODEL: *(enum digi_model *)data = sc->model; return (0); case DIGIIO_IDENT: return (copyout(sc->name, *(char **)data, strlen(sc->name) + 1)); default: return (ENOIOCTL); } } static int digiioctl(struct tty *tp, u_long cmd, void *data, int flag, struct thread *td) { struct digi_softc *sc; struct digi_p *port; port = tp->t_sc; sc = port->sc; if (sc->status == DIGI_STATUS_DISABLED) return (ENXIO); if (!(port->status & ENABLED)) return (ENXIO); switch (cmd) { case DIGIIO_GETALTPIN: *(int *)data = !!(port->dsr == sc->csigs->cd); return (0); case DIGIIO_SETALTPIN: if (!port->laltpin) { if (*(int *)data) { DLOG(DIGIDB_SET, (sc->dev, "port%d: ALTPIN set\n", port->pnum)); port->cd = sc->csigs->dsr; port->dsr = sc->csigs->cd; } else { DLOG(DIGIDB_SET, (sc->dev, "port%d: ALTPIN cleared\n", port->pnum)); port->cd = sc->csigs->cd; port->dsr = sc->csigs->dsr; } } return (0); case DIGIIO_RING: port->send_ring = *(u_char *)data; break; default: return (ENOTTY); } return (0); } static void digibreak(struct tty *tp, int brk) { struct digi_p *port; port = tp->t_sc; /* * now it sends 400 millisecond break because I don't know * how to send an infinite break */ if (brk) fepcmd_w(port, SENDBREAK, 400, 10); } static int digiparam(struct tty *tp, struct termios *t) { struct digi_softc *sc; struct digi_p *port; int cflag; int iflag; int hflow; int s; int window; port = tp->t_sc; sc = port->sc; DLOG(DIGIDB_SET, (sc->dev, "port%d: setting parameters\n", port->pnum)); if (t->c_ispeed == 0) t->c_ispeed = t->c_ospeed; cflag = ttspeedtab(t->c_ospeed, digispeedtab); if (cflag < 0 || (cflag > 0 && t->c_ispeed != t->c_ospeed)) return (EINVAL); s = splclock(); window = sc->window; sc->setwin(sc, 0); if (cflag == 0) { /* hangup */ DLOG(DIGIDB_SET, (sc->dev, "port%d: hangup\n", port->pnum)); digimodem(port->tp, 0, SER_DTR | SER_RTS); } else { digimodem(port->tp, SER_DTR | SER_RTS, 0); DLOG(DIGIDB_SET, (sc->dev, "port%d: CBAUD = %d\n", port->pnum, cflag)); #if 0 /* convert flags to sysV-style values */ if (t->c_cflag & PARODD) cflag |= 0x0200; if (t->c_cflag & PARENB) cflag |= 0x0100; if (t->c_cflag & CSTOPB) cflag |= 0x0080; #else /* convert flags to sysV-style values */ if (t->c_cflag & PARODD) cflag |= FEP_PARODD; if (t->c_cflag & PARENB) cflag |= FEP_PARENB; if (t->c_cflag & CSTOPB) cflag |= FEP_CSTOPB; if (t->c_cflag & CLOCAL) cflag |= FEP_CLOCAL; #endif cflag |= (t->c_cflag & CSIZE) >> 4; DLOG(DIGIDB_SET, (sc->dev, "port%d: CFLAG = 0x%x\n", port->pnum, cflag)); fepcmd_w(port, SETCFLAGS, (unsigned)cflag, 0); } iflag = t->c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK | INPCK | ISTRIP); if (port->c_iflag & IXON) iflag |= 0x400; if (port->c_iflag & IXANY) iflag |= 0x800; if (port->c_iflag & IXOFF) iflag |= 0x1000; DLOG(DIGIDB_SET, (sc->dev, "port%d: set iflag = 0x%x\n", port->pnum, iflag)); fepcmd_w(port, SETIFLAGS, (unsigned)iflag, 0); hflow = 0; if (t->c_cflag & CDTR_IFLOW) hflow |= sc->csigs->dtr; if (t->c_cflag & CRTS_IFLOW) hflow |= sc->csigs->rts; if (t->c_cflag & CCTS_OFLOW) hflow |= sc->csigs->cts; if (t->c_cflag & CDSR_OFLOW) hflow |= port->dsr; if (t->c_cflag & CCAR_OFLOW) hflow |= port->cd; DLOG(DIGIDB_SET, (sc->dev, "port%d: set hflow = 0x%x\n", port->pnum, hflow)); fepcmd_w(port, SETHFLOW, 0xff00 | (unsigned)hflow, 0); DLOG(DIGIDB_SET, (sc->dev, "port%d: set startc(0x%x), stopc(0x%x)\n", port->pnum, t->c_cc[VSTART], t->c_cc[VSTOP])); fepcmd_b(port, SONOFFC, t->c_cc[VSTART], t->c_cc[VSTOP], 0); if (sc->window != 0) sc->towin(sc, 0); if (window != 0) sc->towin(sc, window); splx(s); return (0); } static void digi_intr(void *vp) { struct digi_p *port; char *cxcon; struct digi_softc *sc; int ehead, etail; volatile struct board_chan *bc; struct tty *tp; int head, tail; int wrapmask; int size, window; struct event { u_char pnum; u_char event; u_char mstat; u_char lstat; } event; sc = vp; if (sc->status != DIGI_STATUS_ENABLED) { DLOG(DIGIDB_IRQ, (sc->dev, "interrupt on disabled board !\n")); return; } #ifdef DIGI_INTERRUPT microtime(&sc->intr_timestamp); #endif window = sc->window; sc->setwin(sc, 0); if (sc->model >= PCXEM && W(sc->vmem + 0xd00)) { struct con_bios *con = con_bios_list; register u_char *ptr; ptr = sc->vmem + W(sc->vmem + 0xd00); while (con) { if (ptr[1] && W(ptr + 2) == W(con->bios + 2)) /* Not first block -- exact match */ break; if (W(ptr + 4) >= W(con->bios + 4) && W(ptr + 4) <= W(con->bios + 6)) /* Initial search concetrator BIOS */ break; } if (con == NULL) { log(LOG_ERR, "digi%d: wanted bios LREV = 0x%04x" " not found!\n", sc->res.unit, W(ptr + 4)); W(ptr + 10) = 0; W(sc->vmem + 0xd00) = 0; goto eoi; } cxcon = con->bios; W(ptr + 4) = W(cxcon + 4); W(ptr + 6) = W(cxcon + 6); if (ptr[1] == 0) W(ptr + 2) = W(cxcon + 2); W(ptr + 8) = (ptr[1] << 6) + W(cxcon + 8); size = W(cxcon + 10) - (ptr[1] << 10); if (size <= 0) { W(ptr + 8) = W(cxcon + 8); W(ptr + 10) = 0; } else { if (size > 1024) size = 1024; W(ptr + 10) = size; bcopy(cxcon + (ptr[1] << 10), ptr + 12, size); } W(sc->vmem + 0xd00) = 0; goto eoi; } ehead = sc->gdata->ein; etail = sc->gdata->eout; if (ehead == etail) { #ifdef DEBUG sc->intr_count++; if (sc->intr_count % 6000 == 0) { DLOG(DIGIDB_IRQ, (sc->dev, "6000 useless polls %x %x\n", ehead, etail)); sc->intr_count = 0; } #endif goto eoi; } while (ehead != etail) { event = *(volatile struct event *)(sc->memevent + etail); etail = (etail + 4) & sc->gdata->imax; if (event.pnum >= sc->numports) { log(LOG_ERR, "digi%d: port %d: got event" " on nonexisting port\n", sc->res.unit, event.pnum); continue; } port = &sc->ports[event.pnum]; bc = port->bc; tp = port->tp; if (!(tp->t_state & TS_ISOPEN) && !tp->t_wopeners) { DLOG(DIGIDB_IRQ, (sc->dev, "port %d: event 0x%x on closed port\n", event.pnum, event.event)); bc->rout = bc->rin; bc->idata = 0; bc->iempty = 0; bc->ilow = 0; bc->mint = 0; continue; } if (event.event & ~ALL_IND) log(LOG_ERR, "digi%d: port%d: ? event 0x%x mstat 0x%x" " lstat 0x%x\n", sc->res.unit, event.pnum, event.event, event.mstat, event.lstat); if (event.event & DATA_IND) { DLOG(DIGIDB_IRQ, (sc->dev, "port %d: DATA_IND\n", event.pnum)); wrapmask = port->rxbufsize - 1; head = bc->rin; tail = bc->rout; size = 0; if (!(tp->t_state & TS_ISOPEN)) { bc->rout = head; goto end_of_data; } while (head != tail) { int top; DLOG(DIGIDB_INT, (sc->dev, "port %d: p rx head = %d tail = %d\n", event.pnum, head, tail)); top = (head > tail) ? head : wrapmask + 1; sc->towin(sc, port->rxwin); size = top - tail; if (tp->t_state & TS_CAN_BYPASS_L_RINT) { size = b_to_q((char *)port->rxbuf + tail, size, &tp->t_rawq); tail = top - size; ttwakeup(tp); } else for (; tail < top;) { ttyld_rint(tp, port->rxbuf[tail]); sc->towin(sc, port->rxwin); size--; tail++; if (tp->t_state & TS_TBLOCK) break; } tail &= wrapmask; sc->setwin(sc, 0); bc->rout = tail; head = bc->rin; if (size) break; } if (bc->orun) { CE_RECORD(port, CE_OVERRUN); log(LOG_ERR, "digi%d: port%d: %s\n", sc->res.unit, event.pnum, digi_errortxt(CE_OVERRUN)); bc->orun = 0; } end_of_data: if (size) { tp->t_state |= TS_TBLOCK; port->status |= PAUSE_RX; DLOG(DIGIDB_RX, (sc->dev, "port %d: pause RX\n", event.pnum)); } else { bc->idata = 1; } } if (event.event & MODEMCHG_IND) { DLOG(DIGIDB_MODEM, (sc->dev, "port %d: MODEMCHG_IND\n", event.pnum)); if ((event.mstat ^ event.lstat) & port->cd) { sc->hidewin(sc); ttyld_modem(tp, event.mstat & port->cd); sc->setwin(sc, 0); wakeup(TSA_CARR_ON(tp)); } if (event.mstat & sc->csigs->ri) { DLOG(DIGIDB_RI, (sc->dev, "port %d: RING\n", event.pnum)); if (port->send_ring) { ttyld_rint(tp, 'R'); ttyld_rint(tp, 'I'); ttyld_rint(tp, 'N'); ttyld_rint(tp, 'G'); ttyld_rint(tp, '\r'); ttyld_rint(tp, '\n'); } } } if (event.event & BREAK_IND) { DLOG(DIGIDB_MODEM, (sc->dev, "port %d: BREAK_IND\n", event.pnum)); ttyld_rint(tp, TTY_BI); } if (event.event & (LOWTX_IND | EMPTYTX_IND)) { DLOG(DIGIDB_IRQ, (sc->dev, "port %d:%s%s\n", event.pnum, event.event & LOWTX_IND ? " LOWTX" : "", event.event & EMPTYTX_IND ? " EMPTYTX" : "")); ttyld_start(tp); } } sc->gdata->eout = etail; eoi: if (sc->window != 0) sc->towin(sc, 0); if (window != 0) sc->towin(sc, window); } static void digistart(struct tty *tp) { struct digi_p *port; struct digi_softc *sc; volatile struct board_chan *bc; int head, tail; int size, ocount, totcnt = 0; int s; int wmask; port = tp->t_sc; sc = port->sc; bc = port->bc; wmask = port->txbufsize - 1; s = spltty(); port->lcc = tp->t_outq.c_cc; sc->setwin(sc, 0); if (!(tp->t_state & TS_TBLOCK)) { if (port->status & PAUSE_RX) { DLOG(DIGIDB_RX, (sc->dev, "port %d: resume RX\n", port->pnum)); /* * CAREFUL - braces are needed here if the DLOG is * optimised out! */ } port->status &= ~PAUSE_RX; bc->idata = 1; } if (!(tp->t_state & TS_TTSTOP) && port->status & PAUSE_TX) { DLOG(DIGIDB_TX, (sc->dev, "port %d: resume TX\n", port->pnum)); port->status &= ~PAUSE_TX; fepcmd_w(port, RESUMETX, 0, 10); } if (tp->t_outq.c_cc == 0) tp->t_state &= ~TS_BUSY; else tp->t_state |= TS_BUSY; head = bc->tin; while (tp->t_outq.c_cc != 0) { tail = bc->tout; DLOG(DIGIDB_INT, (sc->dev, "port%d: s tx head = %d tail = %d\n", port->pnum, head, tail)); if (head < tail) size = tail - head - 1; else { size = port->txbufsize - head; if (tail == 0) size--; } if (size == 0) break; sc->towin(sc, port->txwin); ocount = q_to_b(&tp->t_outq, port->txbuf + head, size); totcnt += ocount; head += ocount; head &= wmask; sc->setwin(sc, 0); bc->tin = head; bc->iempty = 1; bc->ilow = 1; } port->lostcc = tp->t_outq.c_cc; tail = bc->tout; if (head < tail) size = port->txbufsize - tail + head; else size = head - tail; port->lbuf = size; DLOG(DIGIDB_INT, (sc->dev, "port%d: s total cnt = %d\n", port->pnum, totcnt)); ttwwakeup(tp); splx(s); } static void digistop(struct tty *tp, int rw) { struct digi_softc *sc; struct digi_p *port; port = tp->t_sc; sc = port->sc; DLOG(DIGIDB_TX, (sc->dev, "port %d: pause TX\n", port->pnum)); port->status |= PAUSE_TX; fepcmd_w(port, PAUSETX, 0, 10); } static void fepcmd(struct digi_p *port, int cmd, int op1, int ncmds) { u_char *mem; unsigned tail, head; int count, n; mem = port->sc->memcmd; port->sc->setwin(port->sc, 0); head = port->sc->gdata->cin; mem[head + 0] = cmd; mem[head + 1] = port->pnum; *(u_short *)(mem + head + 2) = op1; head = (head + 4) & port->sc->gdata->cmax; port->sc->gdata->cin = head; for (count = FEPTIMEOUT; count > 0; count--) { head = port->sc->gdata->cin; tail = port->sc->gdata->cout; n = (head - tail) & port->sc->gdata->cmax; if (n <= ncmds * sizeof(short) * 4) break; } if (count == 0) log(LOG_ERR, "digi%d: port%d: timeout on FEP command\n", port->sc->res.unit, port->pnum); } const char * digi_errortxt(int id) { static const char *error_desc[] = { "silo overflow", "interrupt-level buffer overflow", "tty-level buffer overflow", }; KASSERT(id >= 0 && id < sizeof(error_desc) / sizeof(error_desc[0]), ("Unexpected digi error id %d\n", id)); return (error_desc[id]); } int digi_attach(struct digi_softc *sc) { sc->res.ctldev = make_dev(&digi_csw, sc->res.unit << 16, UID_ROOT, GID_WHEEL, 0600, "digi%r.ctl", sc->res.unit); sc->res.ctldev->si_drv1 = sc; digi_loadmoduledata(sc); digi_init(sc); digi_freemoduledata(sc); return (0); } static int digi_inuse(struct digi_softc *sc) { int i; struct digi_p *port; port = &sc->ports[0]; for (i = 0; i < sc->numports; i++, port++) if (port->tp->t_state & TS_ISOPEN) { DLOG(DIGIDB_INIT, (sc->dev, "port%d: busy\n", i)); return (1); } else if (port->tp->t_wopeners || port->opencnt) { DLOG(DIGIDB_INIT, (sc->dev, "port%d: blocked in open\n", i)); return (1); } return (0); } static void digi_free_state(struct digi_softc *sc) { int i; /* Blow it all away */ for (i = 0; i < sc->numports; i++) ttygone(sc->ports[i].tp); /* XXX: this might be better done as a ttypurge method */ untimeout(digi_poll, sc, sc->callout); callout_handle_init(&sc->callout); untimeout(digi_int_test, sc, sc->inttest); callout_handle_init(&sc->inttest); for (i = 0; i < sc->numports; i++) ttyfree(sc->ports[i].tp); bus_teardown_intr(sc->dev, sc->res.irq, sc->res.irqHandler); #ifdef DIGI_INTERRUPT if (sc->res.irq != NULL) { bus_release_resource(dev, SYS_RES_IRQ, sc->res.irqrid, sc->res.irq); sc->res.irq = NULL; } #endif if (sc->numports) { KASSERT(sc->ports, ("digi%d: Lost my ports ?", sc->res.unit)); free(sc->ports, M_TTYS); sc->ports = NULL; sc->numports = 0; } sc->status = DIGI_STATUS_NOTINIT; } int digi_detach(device_t dev) { struct digi_softc *sc = device_get_softc(dev); DLOG(DIGIDB_INIT, (sc->dev, "detaching\n")); /* If we're INIT'd, numports must be 0 */ KASSERT(sc->numports == 0 || sc->status != DIGI_STATUS_NOTINIT, ("digi%d: numports(%d) & status(%d) are out of sync", sc->res.unit, sc->numports, (int)sc->status)); if (digi_inuse(sc)) return (EBUSY); digi_free_state(sc); destroy_dev(sc->res.ctldev); if (sc->res.mem != NULL) { bus_release_resource(dev, SYS_RES_MEMORY, sc->res.mrid, sc->res.mem); sc->res.mem = NULL; } if (sc->res.io != NULL) { bus_release_resource(dev, SYS_RES_IOPORT, sc->res.iorid, sc->res.io); sc->res.io = NULL; } return (0); } int digi_shutdown(device_t dev) { return (0); } MODULE_VERSION(digi, 1);