| 1 | /* |
| 2 | * Device driver for Specialix range (SI/XIO) of serial line multiplexors. |
| 3 | * |
| 4 | * Copyright (C) 1990, 1992, 1998 Specialix International, |
| 5 | * Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk> |
| 6 | * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au> |
| 7 | * |
| 8 | * Originally derived from: SunOS 4.x version |
| 9 | * Ported from BSDI version to FreeBSD by Peter Wemm. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notices, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notices, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * 3. All advertising materials mentioning features or use of this software |
| 20 | * must display the following acknowledgement: |
| 21 | * This product includes software developed by Andy Rutter of |
| 22 | * Advanced Methods and Tools Ltd. based on original information |
| 23 | * from Specialix International. |
| 24 | * 4. Neither the name of Advanced Methods and Tools, nor Specialix |
| 25 | * International may be used to endorse or promote products derived from |
| 26 | * this software without specific prior written permission. |
| 27 | * |
| 28 | * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 29 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 30 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 31 | * NO EVENT SHALL THE AUTHORS BE LIABLE. |
| 32 | * |
| 33 | * $FreeBSD: src/sys/dev/si/si.c,v 1.101.2.1 2001/02/26 04:23:06 jlemon Exp $ |
| 34 | * $DragonFly: src/sys/dev/serial/si/si.c,v 1.20 2006/09/10 01:26:36 dillon Exp $ |
| 35 | */ |
| 36 | |
| 37 | #ifndef lint |
| 38 | static const char si_copyright1[] = "@(#) Copyright (C) Specialix International, 1990,1992,1998", |
| 39 | si_copyright2[] = "@(#) Copyright (C) Andy Rutter 1993", |
| 40 | si_copyright3[] = "@(#) Copyright (C) Peter Wemm 2000"; |
| 41 | #endif /* not lint */ |
| 42 | |
| 43 | #include "opt_compat.h" |
| 44 | #include "opt_debug_si.h" |
| 45 | |
| 46 | #include <sys/param.h> |
| 47 | #include <sys/systm.h> |
| 48 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
| 49 | #include <sys/ioctl_compat.h> |
| 50 | #endif |
| 51 | #include <sys/tty.h> |
| 52 | #include <sys/proc.h> |
| 53 | #include <sys/conf.h> |
| 54 | #include <sys/fcntl.h> |
| 55 | #include <sys/dkstat.h> |
| 56 | #include <sys/kernel.h> |
| 57 | #include <sys/malloc.h> |
| 58 | #include <sys/sysctl.h> |
| 59 | #include <sys/bus.h> |
| 60 | #include <sys/thread2.h> |
| 61 | #include <machine/bus.h> |
| 62 | #include <sys/rman.h> |
| 63 | #include <machine/resource.h> |
| 64 | |
| 65 | #include <machine/clock.h> |
| 66 | |
| 67 | #include <vm/vm.h> |
| 68 | #include <vm/pmap.h> |
| 69 | |
| 70 | #include <machine/stdarg.h> |
| 71 | |
| 72 | #include "sireg.h" |
| 73 | #include "sivar.h" |
| 74 | #include "si.h" |
| 75 | |
| 76 | /* |
| 77 | * This device driver is designed to interface the Specialix International |
| 78 | * SI, XIO and SX range of serial multiplexor cards to FreeBSD on an ISA, |
| 79 | * EISA or PCI bus machine. |
| 80 | * |
| 81 | * The controller is interfaced to the host via dual port RAM |
| 82 | * and an interrupt. |
| 83 | * |
| 84 | * The code for the Host 1 (very old ISA cards) has not been tested. |
| 85 | */ |
| 86 | |
| 87 | #define POLL /* turn on poller to scan for lost interrupts */ |
| 88 | #define REALPOLL /* on each poll, scan for work regardless */ |
| 89 | #define POLLHZ (hz/10) /* 10 times per second */ |
| 90 | #define SI_I_HIGH_WATER (TTYHOG - 2 * SI_BUFFERSIZE) |
| 91 | #define INT_COUNT 25000 /* max of 125 ints per second */ |
| 92 | #define JET_INT_COUNT 100 /* max of 100 ints per second */ |
| 93 | #define RXINT_COUNT 1 /* one rxint per 10 milliseconds */ |
| 94 | |
| 95 | enum si_mctl { GET, SET, BIS, BIC }; |
| 96 | |
| 97 | static void si_command(struct si_port *, int, int); |
| 98 | static int si_modem(struct si_port *, enum si_mctl, int); |
| 99 | static void si_write_enable(struct si_port *, int); |
| 100 | static int si_Sioctl(cdev_t, u_long, caddr_t, int, struct ucred *); |
| 101 | static void si_start(struct tty *); |
| 102 | static void si_stop(struct tty *, int); |
| 103 | static timeout_t si_lstart; |
| 104 | static void si_disc_optim(struct tty *tp, struct termios *t,struct si_port *pp); |
| 105 | static void sihardclose(struct si_port *pp); |
| 106 | static void sidtrwakeup(void *chan); |
| 107 | |
| 108 | #ifdef SI_DEBUG |
| 109 | static char *si_mctl2str(enum si_mctl cmd); |
| 110 | #endif |
| 111 | |
| 112 | static int siparam(struct tty *, struct termios *); |
| 113 | |
| 114 | static void si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip); |
| 115 | static char * si_modulename(int host_type, int uart_type); |
| 116 | |
| 117 | static d_open_t siopen; |
| 118 | static d_close_t siclose; |
| 119 | static d_write_t siwrite; |
| 120 | static d_ioctl_t siioctl; |
| 121 | |
| 122 | #define CDEV_MAJOR 68 |
| 123 | static struct dev_ops si_ops = { |
| 124 | { "si", CDEV_MAJOR, D_TTY | D_KQFILTER }, |
| 125 | .d_open = siopen, |
| 126 | .d_close = siclose, |
| 127 | .d_read = ttyread, |
| 128 | .d_write = siwrite, |
| 129 | .d_ioctl = siioctl, |
| 130 | .d_poll = ttypoll, |
| 131 | .d_kqfilter = ttykqfilter |
| 132 | }; |
| 133 | |
| 134 | static int si_Nports; |
| 135 | static int si_Nmodules; |
| 136 | static int si_debug = 0; /* data, not bss, so it's patchable */ |
| 137 | |
| 138 | SYSCTL_INT(_machdep, OID_AUTO, si_debug, CTLFLAG_RW, &si_debug, 0, ""); |
| 139 | |
| 140 | static struct tty *si__tty; |
| 141 | |
| 142 | static int si_numunits; |
| 143 | static struct callout poll_ch; |
| 144 | |
| 145 | devclass_t si_devclass; |
| 146 | |
| 147 | #ifndef B2000 /* not standard, but the hardware knows it. */ |
| 148 | # define B2000 2000 |
| 149 | #endif |
| 150 | static struct speedtab bdrates[] = { |
| 151 | { B75, CLK75, }, /* 0x0 */ |
| 152 | { B110, CLK110, }, /* 0x1 */ |
| 153 | { B150, CLK150, }, /* 0x3 */ |
| 154 | { B300, CLK300, }, /* 0x4 */ |
| 155 | { B600, CLK600, }, /* 0x5 */ |
| 156 | { B1200, CLK1200, }, /* 0x6 */ |
| 157 | { B2000, CLK2000, }, /* 0x7 */ |
| 158 | { B2400, CLK2400, }, /* 0x8 */ |
| 159 | { B4800, CLK4800, }, /* 0x9 */ |
| 160 | { B9600, CLK9600, }, /* 0xb */ |
| 161 | { B19200, CLK19200, }, /* 0xc */ |
| 162 | { B38400, CLK38400, }, /* 0x2 (out of order!) */ |
| 163 | { B57600, CLK57600, }, /* 0xd */ |
| 164 | { B115200, CLK110, }, /* 0x1 (dupe!, 110 baud on "si") */ |
| 165 | { -1, -1 }, |
| 166 | }; |
| 167 | |
| 168 | |
| 169 | /* populated with approx character/sec rates - translated at card |
| 170 | * initialisation time to chars per tick of the clock */ |
| 171 | static int done_chartimes = 0; |
| 172 | static struct speedtab chartimes[] = { |
| 173 | { B75, 8, }, |
| 174 | { B110, 11, }, |
| 175 | { B150, 15, }, |
| 176 | { B300, 30, }, |
| 177 | { B600, 60, }, |
| 178 | { B1200, 120, }, |
| 179 | { B2000, 200, }, |
| 180 | { B2400, 240, }, |
| 181 | { B4800, 480, }, |
| 182 | { B9600, 960, }, |
| 183 | { B19200, 1920, }, |
| 184 | { B38400, 3840, }, |
| 185 | { B57600, 5760, }, |
| 186 | { B115200, 11520, }, |
| 187 | { -1, -1 }, |
| 188 | }; |
| 189 | static volatile int in_intr = 0; /* Inside interrupt handler? */ |
| 190 | |
| 191 | #ifdef POLL |
| 192 | static int si_pollrate; /* in addition to irq */ |
| 193 | static int si_realpoll = 0; /* poll HW on timer */ |
| 194 | |
| 195 | SYSCTL_INT(_machdep, OID_AUTO, si_pollrate, CTLFLAG_RW, &si_pollrate, 0, ""); |
| 196 | SYSCTL_INT(_machdep, OID_AUTO, si_realpoll, CTLFLAG_RW, &si_realpoll, 0, ""); |
| 197 | |
| 198 | static int init_finished = 0; |
| 199 | static void si_poll(void *); |
| 200 | #endif |
| 201 | |
| 202 | /* |
| 203 | * Array of adapter types and the corresponding RAM size. The order of |
| 204 | * entries here MUST match the ordinal of the adapter type. |
| 205 | */ |
| 206 | static char *si_type[] = { |
| 207 | "EMPTY", |
| 208 | "SIHOST", |
| 209 | "SIMCA", /* FreeBSD does not support Microchannel */ |
| 210 | "SIHOST2", |
| 211 | "SIEISA", |
| 212 | "SIPCI", |
| 213 | "SXPCI", |
| 214 | "SXISA", |
| 215 | }; |
| 216 | |
| 217 | /* |
| 218 | * We have to make an 8 bit version of bcopy, since some cards can't |
| 219 | * deal with 32 bit I/O |
| 220 | */ |
| 221 | static void __inline |
| 222 | si_bcopy(const void *src, void *dst, size_t len) |
| 223 | { |
| 224 | const uint8_t *src_byte = (const uint8_t *)src; |
| 225 | uint8_t *dst_byte = (uint8_t *)dst; |
| 226 | |
| 227 | while (len--) |
| 228 | *dst_byte++ = *src_byte++; |
| 229 | } |
| 230 | |
| 231 | static void __inline |
| 232 | si_vbcopy(const volatile void *src, void *dst, size_t len) |
| 233 | { |
| 234 | volatile const uint8_t *src_byte = (volatile const uint8_t *)src; |
| 235 | uint8_t *dst_byte = (uint8_t *)dst; |
| 236 | |
| 237 | while (len--) |
| 238 | *dst_byte++ = *src_byte++; |
| 239 | } |
| 240 | |
| 241 | static void __inline |
| 242 | si_bcopyv(const void *src, volatile void *dst, size_t len) |
| 243 | { |
| 244 | const uint8_t *src_byte = (const uint8_t *)src; |
| 245 | volatile uint8_t *dst_byte = (volatile uint8_t *)dst; |
| 246 | |
| 247 | while (len--) |
| 248 | *dst_byte++ = *src_byte++; |
| 249 | } |
| 250 | |
| 251 | /* |
| 252 | * Attach the device. Initialize the card. |
| 253 | */ |
| 254 | int |
| 255 | siattach(device_t dev) |
| 256 | { |
| 257 | int unit; |
| 258 | struct si_softc *sc; |
| 259 | struct si_port *pp; |
| 260 | volatile struct si_channel *ccbp; |
| 261 | volatile struct si_reg *regp; |
| 262 | volatile caddr_t maddr; |
| 263 | struct si_module *modp; |
| 264 | struct tty *tp; |
| 265 | struct speedtab *spt; |
| 266 | int nmodule, nport, x, y; |
| 267 | int uart_type; |
| 268 | int n; |
| 269 | |
| 270 | if ((poll_ch.c_flags & CALLOUT_DID_INIT) == 0) |
| 271 | callout_init(&poll_ch); |
| 272 | |
| 273 | sc = device_get_softc(dev); |
| 274 | unit = device_get_unit(dev); |
| 275 | |
| 276 | sc->sc_typename = si_type[sc->sc_type]; |
| 277 | if (si_numunits < unit + 1) |
| 278 | si_numunits = unit + 1; |
| 279 | |
| 280 | DPRINT((0, DBG_AUTOBOOT, "si%d: siattach\n", unit)); |
| 281 | |
| 282 | #ifdef POLL |
| 283 | if (si_pollrate == 0) { |
| 284 | si_pollrate = POLLHZ; /* in addition to irq */ |
| 285 | #ifdef REALPOLL |
| 286 | si_realpoll = 1; /* scan always */ |
| 287 | #endif |
| 288 | } |
| 289 | #endif |
| 290 | |
| 291 | DPRINT((0, DBG_AUTOBOOT, "si%d: type: %s paddr: %x maddr: %x\n", unit, |
| 292 | sc->sc_typename, sc->sc_paddr, sc->sc_maddr)); |
| 293 | |
| 294 | sc->sc_ports = NULL; /* mark as uninitialised */ |
| 295 | |
| 296 | maddr = sc->sc_maddr; |
| 297 | |
| 298 | /* Stop the CPU first so it won't stomp around while we load */ |
| 299 | |
| 300 | switch (sc->sc_type) { |
| 301 | case SIEISA: |
| 302 | outb(sc->sc_iobase + 2, sc->sc_irq << 4); |
| 303 | break; |
| 304 | case SIPCI: |
| 305 | *(maddr+SIPCIRESET) = 0; |
| 306 | break; |
| 307 | case SIJETPCI: /* fall through to JET ISA */ |
| 308 | case SIJETISA: |
| 309 | *(maddr+SIJETCONFIG) = 0; |
| 310 | break; |
| 311 | case SIHOST2: |
| 312 | *(maddr+SIPLRESET) = 0; |
| 313 | break; |
| 314 | case SIHOST: |
| 315 | *(maddr+SIRESET) = 0; |
| 316 | break; |
| 317 | default: /* this should never happen */ |
| 318 | printf("si%d: unsupported configuration\n", unit); |
| 319 | return EINVAL; |
| 320 | break; |
| 321 | } |
| 322 | |
| 323 | /* OK, now lets download the download code */ |
| 324 | |
| 325 | if (SI_ISJET(sc->sc_type)) { |
| 326 | DPRINT((0, DBG_DOWNLOAD, "si%d: jet_download: nbytes %d\n", |
| 327 | unit, si3_t225_dsize)); |
| 328 | si_bcopy(si3_t225_download, maddr + si3_t225_downloadaddr, |
| 329 | si3_t225_dsize); |
| 330 | DPRINT((0, DBG_DOWNLOAD, |
| 331 | "si%d: jet_bootstrap: nbytes %d -> %x\n", |
| 332 | unit, si3_t225_bsize, si3_t225_bootloadaddr)); |
| 333 | si_bcopy(si3_t225_bootstrap, maddr + si3_t225_bootloadaddr, |
| 334 | si3_t225_bsize); |
| 335 | } else { |
| 336 | DPRINT((0, DBG_DOWNLOAD, "si%d: si_download: nbytes %d\n", |
| 337 | unit, si2_z280_dsize)); |
| 338 | si_bcopy(si2_z280_download, maddr + si2_z280_downloadaddr, |
| 339 | si2_z280_dsize); |
| 340 | } |
| 341 | |
| 342 | /* Now start the CPU */ |
| 343 | |
| 344 | switch (sc->sc_type) { |
| 345 | case SIEISA: |
| 346 | /* modify the download code to tell it that it's on an EISA */ |
| 347 | *(maddr + 0x42) = 1; |
| 348 | outb(sc->sc_iobase + 2, (sc->sc_irq << 4) | 4); |
| 349 | (void)inb(sc->sc_iobase + 3); /* reset interrupt */ |
| 350 | break; |
| 351 | case SIPCI: |
| 352 | /* modify the download code to tell it that it's on a PCI */ |
| 353 | *(maddr+0x42) = 1; |
| 354 | *(maddr+SIPCIRESET) = 1; |
| 355 | *(maddr+SIPCIINTCL) = 0; |
| 356 | break; |
| 357 | case SIJETPCI: |
| 358 | *(maddr+SIJETRESET) = 0; |
| 359 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN; |
| 360 | break; |
| 361 | case SIJETISA: |
| 362 | *(maddr+SIJETRESET) = 0; |
| 363 | switch (sc->sc_irq) { |
| 364 | case 9: |
| 365 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0x90; |
| 366 | break; |
| 367 | case 10: |
| 368 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xa0; |
| 369 | break; |
| 370 | case 11: |
| 371 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xb0; |
| 372 | break; |
| 373 | case 12: |
| 374 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xc0; |
| 375 | break; |
| 376 | case 15: |
| 377 | *(maddr+SIJETCONFIG) = SIJETBUSEN|SIJETIRQEN|0xf0; |
| 378 | break; |
| 379 | } |
| 380 | break; |
| 381 | case SIHOST: |
| 382 | *(maddr+SIRESET_CL) = 0; |
| 383 | *(maddr+SIINTCL_CL) = 0; |
| 384 | break; |
| 385 | case SIHOST2: |
| 386 | *(maddr+SIPLRESET) = 0x10; |
| 387 | switch (sc->sc_irq) { |
| 388 | case 11: |
| 389 | *(maddr+SIPLIRQ11) = 0x10; |
| 390 | break; |
| 391 | case 12: |
| 392 | *(maddr+SIPLIRQ12) = 0x10; |
| 393 | break; |
| 394 | case 15: |
| 395 | *(maddr+SIPLIRQ15) = 0x10; |
| 396 | break; |
| 397 | } |
| 398 | *(maddr+SIPLIRQCLR) = 0x10; |
| 399 | break; |
| 400 | default: /* this should _REALLY_ never happen */ |
| 401 | printf("si%d: Uh, it was supported a second ago...\n", unit); |
| 402 | return EINVAL; |
| 403 | } |
| 404 | |
| 405 | DELAY(1000000); /* wait around for a second */ |
| 406 | |
| 407 | regp = (struct si_reg *)maddr; |
| 408 | y = 0; |
| 409 | /* wait max of 5 sec for init OK */ |
| 410 | while (regp->initstat == 0 && y++ < 10) { |
| 411 | DELAY(500000); |
| 412 | } |
| 413 | switch (regp->initstat) { |
| 414 | case 0: |
| 415 | printf("si%d: startup timeout - aborting\n", unit); |
| 416 | sc->sc_type = SIEMPTY; |
| 417 | return EINVAL; |
| 418 | case 1: |
| 419 | if (SI_ISJET(sc->sc_type)) { |
| 420 | /* set throttle to 100 times per second */ |
| 421 | regp->int_count = JET_INT_COUNT; |
| 422 | /* rx_intr_count is a NOP in Jet */ |
| 423 | } else { |
| 424 | /* set throttle to 125 times per second */ |
| 425 | regp->int_count = INT_COUNT; |
| 426 | /* rx intr max of 25 times per second */ |
| 427 | regp->rx_int_count = RXINT_COUNT; |
| 428 | } |
| 429 | regp->int_pending = 0; /* no intr pending */ |
| 430 | regp->int_scounter = 0; /* reset counter */ |
| 431 | break; |
| 432 | case 0xff: |
| 433 | /* |
| 434 | * No modules found, so give up on this one. |
| 435 | */ |
| 436 | printf("si%d: %s - no ports found\n", unit, |
| 437 | si_type[sc->sc_type]); |
| 438 | return 0; |
| 439 | default: |
| 440 | printf("si%d: download code version error - initstat %x\n", |
| 441 | unit, regp->initstat); |
| 442 | return EINVAL; |
| 443 | } |
| 444 | |
| 445 | /* |
| 446 | * First time around the ports just count them in order |
| 447 | * to allocate some memory. |
| 448 | */ |
| 449 | nport = 0; |
| 450 | modp = (struct si_module *)(maddr + 0x80); |
| 451 | for (;;) { |
| 452 | DPRINT((0, DBG_DOWNLOAD, "si%d: ccb addr 0x%x\n", unit, modp)); |
| 453 | switch (modp->sm_type) { |
| 454 | case TA4: |
| 455 | DPRINT((0, DBG_DOWNLOAD, |
| 456 | "si%d: Found old TA4 module, 4 ports\n", |
| 457 | unit)); |
| 458 | x = 4; |
| 459 | break; |
| 460 | case TA8: |
| 461 | DPRINT((0, DBG_DOWNLOAD, |
| 462 | "si%d: Found old TA8 module, 8 ports\n", |
| 463 | unit)); |
| 464 | x = 8; |
| 465 | break; |
| 466 | case TA4_ASIC: |
| 467 | DPRINT((0, DBG_DOWNLOAD, |
| 468 | "si%d: Found ASIC TA4 module, 4 ports\n", |
| 469 | unit)); |
| 470 | x = 4; |
| 471 | break; |
| 472 | case TA8_ASIC: |
| 473 | DPRINT((0, DBG_DOWNLOAD, |
| 474 | "si%d: Found ASIC TA8 module, 8 ports\n", |
| 475 | unit)); |
| 476 | x = 8; |
| 477 | break; |
| 478 | case MTA: |
| 479 | DPRINT((0, DBG_DOWNLOAD, |
| 480 | "si%d: Found CD1400 module, 8 ports\n", |
| 481 | unit)); |
| 482 | x = 8; |
| 483 | break; |
| 484 | case SXDC: |
| 485 | DPRINT((0, DBG_DOWNLOAD, |
| 486 | "si%d: Found SXDC module, 8 ports\n", |
| 487 | unit)); |
| 488 | x = 8; |
| 489 | break; |
| 490 | default: |
| 491 | printf("si%d: unknown module type %d\n", |
| 492 | unit, modp->sm_type); |
| 493 | goto try_next; |
| 494 | } |
| 495 | |
| 496 | /* this was limited in firmware and is also a driver issue */ |
| 497 | if ((nport + x) > SI_MAXPORTPERCARD) { |
| 498 | printf("si%d: extra ports ignored\n", unit); |
| 499 | goto try_next; |
| 500 | } |
| 501 | |
| 502 | nport += x; |
| 503 | si_Nports += x; |
| 504 | si_Nmodules++; |
| 505 | |
| 506 | try_next: |
| 507 | if (modp->sm_next == 0) |
| 508 | break; |
| 509 | modp = (struct si_module *) |
| 510 | (maddr + (unsigned)(modp->sm_next & 0x7fff)); |
| 511 | } |
| 512 | sc->sc_ports = kmalloc(sizeof(struct si_port) * nport, |
| 513 | M_DEVBUF, M_WAITOK | M_ZERO); |
| 514 | sc->sc_nport = nport; |
| 515 | for (n = 0; n < nport; ++n) { |
| 516 | callout_init(&sc->sc_ports[n].lstart_ch); |
| 517 | callout_init(&sc->sc_ports[n].dtr_ch); |
| 518 | } |
| 519 | |
| 520 | /* |
| 521 | * allocate tty structures for ports |
| 522 | */ |
| 523 | tp = kmalloc(sizeof(*tp) * nport, M_DEVBUF, M_WAITOK | M_ZERO); |
| 524 | si__tty = tp; |
| 525 | |
| 526 | /* |
| 527 | * Scan round the ports again, this time initialising. |
| 528 | */ |
| 529 | pp = sc->sc_ports; |
| 530 | nmodule = 0; |
| 531 | modp = (struct si_module *)(maddr + 0x80); |
| 532 | uart_type = 1000; /* arbitary, > uchar_max */ |
| 533 | for (;;) { |
| 534 | switch (modp->sm_type) { |
| 535 | case TA4: |
| 536 | nport = 4; |
| 537 | break; |
| 538 | case TA8: |
| 539 | nport = 8; |
| 540 | break; |
| 541 | case TA4_ASIC: |
| 542 | nport = 4; |
| 543 | break; |
| 544 | case TA8_ASIC: |
| 545 | nport = 8; |
| 546 | break; |
| 547 | case MTA: |
| 548 | nport = 8; |
| 549 | break; |
| 550 | case SXDC: |
| 551 | nport = 8; |
| 552 | break; |
| 553 | default: |
| 554 | goto try_next2; |
| 555 | } |
| 556 | nmodule++; |
| 557 | ccbp = (struct si_channel *)((char *)modp + 0x100); |
| 558 | if (uart_type == 1000) |
| 559 | uart_type = ccbp->type; |
| 560 | else if (uart_type != ccbp->type) |
| 561 | printf("si%d: Warning: module %d mismatch! (%d%s != %d%s)\n", |
| 562 | unit, nmodule, |
| 563 | ccbp->type, si_modulename(sc->sc_type, ccbp->type), |
| 564 | uart_type, si_modulename(sc->sc_type, uart_type)); |
| 565 | |
| 566 | for (x = 0; x < nport; x++, pp++, ccbp++) { |
| 567 | pp->sp_ccb = ccbp; /* save the address */ |
| 568 | pp->sp_tty = tp++; |
| 569 | pp->sp_pend = IDLE_CLOSE; |
| 570 | pp->sp_state = 0; /* internal flag */ |
| 571 | pp->sp_dtr_wait = 3 * hz; |
| 572 | pp->sp_iin.c_iflag = TTYDEF_IFLAG; |
| 573 | pp->sp_iin.c_oflag = TTYDEF_OFLAG; |
| 574 | pp->sp_iin.c_cflag = TTYDEF_CFLAG; |
| 575 | pp->sp_iin.c_lflag = TTYDEF_LFLAG; |
| 576 | termioschars(&pp->sp_iin); |
| 577 | pp->sp_iin.c_ispeed = pp->sp_iin.c_ospeed = |
| 578 | TTYDEF_SPEED; |
| 579 | pp->sp_iout = pp->sp_iin; |
| 580 | } |
| 581 | try_next2: |
| 582 | if (modp->sm_next == 0) { |
| 583 | printf("si%d: card: %s, ports: %d, modules: %d, type: %d%s\n", |
| 584 | unit, |
| 585 | sc->sc_typename, |
| 586 | sc->sc_nport, |
| 587 | nmodule, |
| 588 | uart_type, |
| 589 | si_modulename(sc->sc_type, uart_type)); |
| 590 | break; |
| 591 | } |
| 592 | modp = (struct si_module *) |
| 593 | (maddr + (unsigned)(modp->sm_next & 0x7fff)); |
| 594 | } |
| 595 | if (done_chartimes == 0) { |
| 596 | for (spt = chartimes ; spt->sp_speed != -1; spt++) { |
| 597 | if ((spt->sp_code /= hz) == 0) |
| 598 | spt->sp_code = 1; |
| 599 | } |
| 600 | done_chartimes = 1; |
| 601 | } |
| 602 | |
| 603 | dev_ops_add(&si_ops, 0x7f, unit); |
| 604 | /* path name devsw minor type uid gid perm*/ |
| 605 | for (x = 0; x < sc->sc_nport; x++) { |
| 606 | /* sync with the manuals that start at 1 */ |
| 607 | y = x + 1 + unit * (1 << SI_CARDSHIFT); |
| 608 | make_dev(&si_ops, x, 0, 0, 0600, "ttyA%02d", y); |
| 609 | make_dev(&si_ops, x + 0x00080, 0, 0, 0600, "cuaA%02d", y); |
| 610 | make_dev(&si_ops, x + 0x10000, 0, 0, 0600, "ttyiA%02d", y); |
| 611 | make_dev(&si_ops, x + 0x10080, 0, 0, 0600, "cuaiA%02d", y); |
| 612 | make_dev(&si_ops, x + 0x20000, 0, 0, 0600, "ttylA%02d", y); |
| 613 | make_dev(&si_ops, x + 0x20080, 0, 0, 0600, "cualA%02d", y); |
| 614 | } |
| 615 | make_dev(&si_ops, 0x40000, 0, 0, 0600, "si_control"); |
| 616 | return (0); |
| 617 | } |
| 618 | |
| 619 | static int |
| 620 | siopen(struct dev_open_args *ap) |
| 621 | { |
| 622 | cdev_t dev = ap->a_head.a_dev; |
| 623 | int error; |
| 624 | int card, port; |
| 625 | struct si_softc *sc; |
| 626 | struct tty *tp; |
| 627 | volatile struct si_channel *ccbp; |
| 628 | struct si_port *pp; |
| 629 | int mynor = minor(dev); |
| 630 | |
| 631 | /* quickly let in /dev/si_control */ |
| 632 | if (IS_CONTROLDEV(mynor)) { |
| 633 | if ((error = suser_cred(ap->a_cred, 0))) |
| 634 | return(error); |
| 635 | return(0); |
| 636 | } |
| 637 | |
| 638 | card = SI_CARD(mynor); |
| 639 | sc = devclass_get_softc(si_devclass, card); |
| 640 | if (sc == NULL) |
| 641 | return (ENXIO); |
| 642 | |
| 643 | if (sc->sc_type == SIEMPTY) { |
| 644 | DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: type %s??\n", |
| 645 | card, sc->sc_typename)); |
| 646 | return(ENXIO); |
| 647 | } |
| 648 | |
| 649 | port = SI_PORT(mynor); |
| 650 | if (port >= sc->sc_nport) { |
| 651 | DPRINT((0, DBG_OPEN|DBG_FAIL, "si%d: nports %d\n", |
| 652 | card, sc->sc_nport)); |
| 653 | return(ENXIO); |
| 654 | } |
| 655 | |
| 656 | #ifdef POLL |
| 657 | /* |
| 658 | * We've now got a device, so start the poller. |
| 659 | */ |
| 660 | if (init_finished == 0) { |
| 661 | callout_reset(&poll_ch, si_pollrate, si_poll, NULL); |
| 662 | init_finished = 1; |
| 663 | } |
| 664 | #endif |
| 665 | |
| 666 | /* initial/lock device */ |
| 667 | if (IS_STATE(mynor)) { |
| 668 | return(0); |
| 669 | } |
| 670 | |
| 671 | pp = sc->sc_ports + port; |
| 672 | tp = pp->sp_tty; /* the "real" tty */ |
| 673 | dev->si_tty = tp; |
| 674 | ccbp = pp->sp_ccb; /* Find control block */ |
| 675 | DPRINT((pp, DBG_ENTRY|DBG_OPEN, "siopen(%s,%x,%x)\n", |
| 676 | devtoname(dev), ap->a_oflags, ap->a_devtype)); |
| 677 | |
| 678 | crit_enter(); /* Keep others out */ |
| 679 | error = 0; |
| 680 | |
| 681 | open_top: |
| 682 | while (pp->sp_state & SS_DTR_OFF) { |
| 683 | error = tsleep(&pp->sp_dtr_wait, PCATCH, "sidtr", 0); |
| 684 | if (error != 0) |
| 685 | goto out; |
| 686 | } |
| 687 | |
| 688 | if (tp->t_state & TS_ISOPEN) { |
| 689 | /* |
| 690 | * The device is open, so everything has been initialised. |
| 691 | * handle conflicts. |
| 692 | */ |
| 693 | if (IS_CALLOUT(mynor)) { |
| 694 | if (!pp->sp_active_out) { |
| 695 | error = EBUSY; |
| 696 | goto out; |
| 697 | } |
| 698 | } else { |
| 699 | if (pp->sp_active_out) { |
| 700 | if (ap->a_oflags & O_NONBLOCK) { |
| 701 | error = EBUSY; |
| 702 | goto out; |
| 703 | } |
| 704 | error = tsleep(&pp->sp_active_out, |
| 705 | PCATCH, "sibi", 0); |
| 706 | if (error != 0) |
| 707 | goto out; |
| 708 | goto open_top; |
| 709 | } |
| 710 | } |
| 711 | if (tp->t_state & TS_XCLUDE && |
| 712 | suser_cred(ap->a_cred, 0)) { |
| 713 | DPRINT((pp, DBG_OPEN|DBG_FAIL, |
| 714 | "already open and EXCLUSIVE set\n")); |
| 715 | error = EBUSY; |
| 716 | goto out; |
| 717 | } |
| 718 | } else { |
| 719 | /* |
| 720 | * The device isn't open, so there are no conflicts. |
| 721 | * Initialize it. Avoid sleep... :-) |
| 722 | */ |
| 723 | DPRINT((pp, DBG_OPEN, "first open\n")); |
| 724 | tp->t_oproc = si_start; |
| 725 | tp->t_stop = si_stop; |
| 726 | tp->t_param = siparam; |
| 727 | tp->t_dev = dev; |
| 728 | tp->t_termios = mynor & SI_CALLOUT_MASK |
| 729 | ? pp->sp_iout : pp->sp_iin; |
| 730 | |
| 731 | (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); |
| 732 | |
| 733 | ++pp->sp_wopeners; /* in case of sleep in siparam */ |
| 734 | |
| 735 | error = siparam(tp, &tp->t_termios); |
| 736 | |
| 737 | --pp->sp_wopeners; |
| 738 | if (error != 0) |
| 739 | goto out; |
| 740 | /* XXX: we should goto_top if siparam slept */ |
| 741 | |
| 742 | /* set initial DCD state */ |
| 743 | pp->sp_last_hi_ip = ccbp->hi_ip; |
| 744 | if ((pp->sp_last_hi_ip & IP_DCD) || IS_CALLOUT(mynor)) { |
| 745 | (*linesw[tp->t_line].l_modem)(tp, 1); |
| 746 | } |
| 747 | } |
| 748 | |
| 749 | /* whoops! we beat the close! */ |
| 750 | if (pp->sp_state & SS_CLOSING) { |
| 751 | /* try and stop it from proceeding to bash the hardware */ |
| 752 | pp->sp_state &= ~SS_CLOSING; |
| 753 | } |
| 754 | |
| 755 | /* |
| 756 | * Wait for DCD if necessary |
| 757 | */ |
| 758 | if (!(tp->t_state & TS_CARR_ON) && |
| 759 | !IS_CALLOUT(mynor) && |
| 760 | !(tp->t_cflag & CLOCAL) && |
| 761 | !(ap->a_oflags & O_NONBLOCK)) { |
| 762 | ++pp->sp_wopeners; |
| 763 | DPRINT((pp, DBG_OPEN, "sleeping for carrier\n")); |
| 764 | error = tsleep(TSA_CARR_ON(tp), PCATCH, "sidcd", 0); |
| 765 | --pp->sp_wopeners; |
| 766 | if (error != 0) |
| 767 | goto out; |
| 768 | goto open_top; |
| 769 | } |
| 770 | |
| 771 | error = (*linesw[tp->t_line].l_open)(dev, tp); |
| 772 | si_disc_optim(tp, &tp->t_termios, pp); |
| 773 | if (tp->t_state & TS_ISOPEN && IS_CALLOUT(mynor)) |
| 774 | pp->sp_active_out = TRUE; |
| 775 | |
| 776 | pp->sp_state |= SS_OPEN; /* made it! */ |
| 777 | |
| 778 | out: |
| 779 | crit_exit(); |
| 780 | |
| 781 | DPRINT((pp, DBG_OPEN, "leaving siopen\n")); |
| 782 | |
| 783 | if (!(tp->t_state & TS_ISOPEN) && pp->sp_wopeners == 0) |
| 784 | sihardclose(pp); |
| 785 | |
| 786 | return(error); |
| 787 | } |
| 788 | |
| 789 | static int |
| 790 | siclose(struct dev_close_args *ap) |
| 791 | { |
| 792 | cdev_t dev = ap->a_head.a_dev; |
| 793 | struct si_port *pp; |
| 794 | struct tty *tp; |
| 795 | int error = 0; |
| 796 | int mynor = minor(dev); |
| 797 | |
| 798 | if (IS_SPECIAL(mynor)) |
| 799 | return(0); |
| 800 | |
| 801 | crit_enter(); |
| 802 | |
| 803 | pp = MINOR2PP(mynor); |
| 804 | tp = pp->sp_tty; |
| 805 | |
| 806 | DPRINT((pp, DBG_ENTRY|DBG_CLOSE, "siclose(%s,%x,%x) sp_state:%x\n", |
| 807 | devtoname(dev), ap->a_fflag, ap->a_devtype, pp->sp_state)); |
| 808 | |
| 809 | /* did we sleep and loose a race? */ |
| 810 | if (pp->sp_state & SS_CLOSING) { |
| 811 | /* error = ESOMETING? */ |
| 812 | goto out; |
| 813 | } |
| 814 | |
| 815 | /* begin race detection.. */ |
| 816 | pp->sp_state |= SS_CLOSING; |
| 817 | |
| 818 | si_write_enable(pp, 0); /* block writes for ttywait() */ |
| 819 | |
| 820 | /* THIS MAY SLEEP IN TTYWAIT!!! */ |
| 821 | (*linesw[tp->t_line].l_close)(tp, ap->a_fflag); |
| 822 | |
| 823 | si_write_enable(pp, 1); |
| 824 | |
| 825 | /* did we sleep and somebody started another open? */ |
| 826 | if (!(pp->sp_state & SS_CLOSING)) { |
| 827 | /* error = ESOMETING? */ |
| 828 | goto out; |
| 829 | } |
| 830 | /* ok. we are now still on the right track.. nuke the hardware */ |
| 831 | |
| 832 | if (pp->sp_state & SS_LSTART) { |
| 833 | callout_stop(&pp->lstart_ch); |
| 834 | pp->sp_state &= ~SS_LSTART; |
| 835 | } |
| 836 | |
| 837 | si_stop(tp, FREAD | FWRITE); |
| 838 | |
| 839 | sihardclose(pp); |
| 840 | ttyclose(tp); |
| 841 | pp->sp_state &= ~SS_OPEN; |
| 842 | |
| 843 | out: |
| 844 | DPRINT((pp, DBG_CLOSE|DBG_EXIT, "close done, returning\n")); |
| 845 | crit_exit(); |
| 846 | return(error); |
| 847 | } |
| 848 | |
| 849 | static void |
| 850 | sihardclose(struct si_port *pp) |
| 851 | { |
| 852 | struct tty *tp; |
| 853 | volatile struct si_channel *ccbp; |
| 854 | |
| 855 | crit_enter(); |
| 856 | |
| 857 | tp = pp->sp_tty; |
| 858 | ccbp = pp->sp_ccb; /* Find control block */ |
| 859 | if (tp->t_cflag & HUPCL || |
| 860 | (!pp->sp_active_out && |
| 861 | !(ccbp->hi_ip & IP_DCD) && |
| 862 | !(pp->sp_iin.c_cflag && CLOCAL)) || |
| 863 | !(tp->t_state & TS_ISOPEN)) { |
| 864 | |
| 865 | (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); |
| 866 | (void) si_command(pp, FCLOSE, SI_NOWAIT); |
| 867 | |
| 868 | if (pp->sp_dtr_wait != 0) { |
| 869 | callout_reset(&pp->dtr_ch, pp->sp_dtr_wait, |
| 870 | sidtrwakeup, pp); |
| 871 | pp->sp_state |= SS_DTR_OFF; |
| 872 | } |
| 873 | |
| 874 | } |
| 875 | pp->sp_active_out = FALSE; |
| 876 | wakeup((caddr_t)&pp->sp_active_out); |
| 877 | wakeup(TSA_CARR_ON(tp)); |
| 878 | |
| 879 | crit_exit(); |
| 880 | } |
| 881 | |
| 882 | |
| 883 | /* |
| 884 | * called at splsoftclock()... |
| 885 | */ |
| 886 | static void |
| 887 | sidtrwakeup(void *chan) |
| 888 | { |
| 889 | struct si_port *pp; |
| 890 | |
| 891 | crit_enter(); |
| 892 | |
| 893 | pp = (struct si_port *)chan; |
| 894 | pp->sp_state &= ~SS_DTR_OFF; |
| 895 | wakeup(&pp->sp_dtr_wait); |
| 896 | |
| 897 | crit_exit(); |
| 898 | } |
| 899 | |
| 900 | static int |
| 901 | siwrite(struct dev_write_args *ap) |
| 902 | { |
| 903 | cdev_t dev = ap->a_head.a_dev; |
| 904 | struct si_port *pp; |
| 905 | struct tty *tp; |
| 906 | int error = 0; |
| 907 | int mynor = minor(dev); |
| 908 | |
| 909 | if (IS_SPECIAL(mynor)) { |
| 910 | DPRINT((0, DBG_ENTRY|DBG_FAIL|DBG_WRITE, "siwrite(CONTROLDEV!!)\n")); |
| 911 | return(ENODEV); |
| 912 | } |
| 913 | pp = MINOR2PP(mynor); |
| 914 | tp = pp->sp_tty; |
| 915 | DPRINT((pp, DBG_WRITE, "siwrite(%s,%x,%x)\n", devtoname(dev), ap->a_uio, ap->a_ioflag)); |
| 916 | |
| 917 | crit_enter(); |
| 918 | /* |
| 919 | * If writes are currently blocked, wait on the "real" tty |
| 920 | */ |
| 921 | while (pp->sp_state & SS_BLOCKWRITE) { |
| 922 | pp->sp_state |= SS_WAITWRITE; |
| 923 | DPRINT((pp, DBG_WRITE, "in siwrite, wait for SS_BLOCKWRITE to clear\n")); |
| 924 | if ((error = ttysleep(tp, (caddr_t)pp, PCATCH, |
| 925 | "siwrite", tp->t_timeout))) { |
| 926 | if (error == EWOULDBLOCK) |
| 927 | error = EIO; |
| 928 | goto out; |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | error = (*linesw[tp->t_line].l_write)(tp, ap->a_uio, ap->a_ioflag); |
| 933 | out: |
| 934 | crit_exit(); |
| 935 | return (error); |
| 936 | } |
| 937 | |
| 938 | |
| 939 | static int |
| 940 | siioctl(struct dev_ioctl_args *ap) |
| 941 | { |
| 942 | cdev_t dev = ap->a_head.a_dev; |
| 943 | caddr_t data = ap->a_data; |
| 944 | u_long cmd = ap->a_cmd; |
| 945 | struct si_port *pp; |
| 946 | struct tty *tp; |
| 947 | int error; |
| 948 | int mynor = minor(dev); |
| 949 | int blocked = 0; |
| 950 | #if defined(COMPAT_43) |
| 951 | u_long oldcmd; |
| 952 | struct termios term; |
| 953 | #endif |
| 954 | |
| 955 | if (IS_SI_IOCTL(cmd)) |
| 956 | return(si_Sioctl(dev, cmd, data, ap->a_fflag, ap->a_cred)); |
| 957 | |
| 958 | pp = MINOR2PP(mynor); |
| 959 | tp = pp->sp_tty; |
| 960 | |
| 961 | DPRINT((pp, DBG_ENTRY|DBG_IOCTL, "siioctl(%s,%lx,%x,%x)\n", |
| 962 | devtoname(dev), cmd, data, ap->a_fflag)); |
| 963 | if (IS_STATE(mynor)) { |
| 964 | struct termios *ct; |
| 965 | |
| 966 | switch (mynor & SI_STATE_MASK) { |
| 967 | case SI_INIT_STATE_MASK: |
| 968 | ct = IS_CALLOUT(mynor) ? &pp->sp_iout : &pp->sp_iin; |
| 969 | break; |
| 970 | case SI_LOCK_STATE_MASK: |
| 971 | ct = IS_CALLOUT(mynor) ? &pp->sp_lout : &pp->sp_lin; |
| 972 | break; |
| 973 | default: |
| 974 | return (ENODEV); |
| 975 | } |
| 976 | switch (cmd) { |
| 977 | case TIOCSETA: |
| 978 | error = suser_cred(ap->a_cred, 0); |
| 979 | if (error != 0) |
| 980 | return (error); |
| 981 | *ct = *(struct termios *)data; |
| 982 | return (0); |
| 983 | case TIOCGETA: |
| 984 | *(struct termios *)data = *ct; |
| 985 | return (0); |
| 986 | case TIOCGETD: |
| 987 | *(int *)data = TTYDISC; |
| 988 | return (0); |
| 989 | case TIOCGWINSZ: |
| 990 | bzero(data, sizeof(struct winsize)); |
| 991 | return (0); |
| 992 | default: |
| 993 | return (ENOTTY); |
| 994 | } |
| 995 | } |
| 996 | /* |
| 997 | * Do the old-style ioctl compat routines... |
| 998 | */ |
| 999 | #if defined(COMPAT_43) |
| 1000 | term = tp->t_termios; |
| 1001 | oldcmd = cmd; |
| 1002 | error = ttsetcompat(tp, &cmd, data, &term); |
| 1003 | if (error != 0) |
| 1004 | return (error); |
| 1005 | if (cmd != oldcmd) |
| 1006 | data = (caddr_t)&term; |
| 1007 | #endif |
| 1008 | /* |
| 1009 | * Do the initial / lock state business |
| 1010 | */ |
| 1011 | if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { |
| 1012 | int cc; |
| 1013 | struct termios *dt = (struct termios *)data; |
| 1014 | struct termios *lt = mynor & SI_CALLOUT_MASK |
| 1015 | ? &pp->sp_lout : &pp->sp_lin; |
| 1016 | |
| 1017 | dt->c_iflag = (tp->t_iflag & lt->c_iflag) | |
| 1018 | (dt->c_iflag & ~lt->c_iflag); |
| 1019 | dt->c_oflag = (tp->t_oflag & lt->c_oflag) | |
| 1020 | (dt->c_oflag & ~lt->c_oflag); |
| 1021 | dt->c_cflag = (tp->t_cflag & lt->c_cflag) | |
| 1022 | (dt->c_cflag & ~lt->c_cflag); |
| 1023 | dt->c_lflag = (tp->t_lflag & lt->c_lflag) | |
| 1024 | (dt->c_lflag & ~lt->c_lflag); |
| 1025 | for (cc = 0; cc < NCCS; ++cc) |
| 1026 | if (lt->c_cc[cc] != 0) |
| 1027 | dt->c_cc[cc] = tp->t_cc[cc]; |
| 1028 | if (lt->c_ispeed != 0) |
| 1029 | dt->c_ispeed = tp->t_ispeed; |
| 1030 | if (lt->c_ospeed != 0) |
| 1031 | dt->c_ospeed = tp->t_ospeed; |
| 1032 | } |
| 1033 | |
| 1034 | /* |
| 1035 | * Block user-level writes to give the ttywait() |
| 1036 | * a chance to completely drain for commands |
| 1037 | * that require the port to be in a quiescent state. |
| 1038 | */ |
| 1039 | switch (cmd) { |
| 1040 | case TIOCSETAW: |
| 1041 | case TIOCSETAF: |
| 1042 | case TIOCDRAIN: |
| 1043 | #ifdef COMPAT_43 |
| 1044 | case TIOCSETP: |
| 1045 | #endif |
| 1046 | blocked++; /* block writes for ttywait() and siparam() */ |
| 1047 | si_write_enable(pp, 0); |
| 1048 | } |
| 1049 | |
| 1050 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, |
| 1051 | ap->a_fflag, ap->a_cred); |
| 1052 | if (error != ENOIOCTL) |
| 1053 | goto out; |
| 1054 | |
| 1055 | crit_enter(); |
| 1056 | |
| 1057 | error = ttioctl(tp, cmd, data, ap->a_fflag); |
| 1058 | si_disc_optim(tp, &tp->t_termios, pp); |
| 1059 | if (error != ENOIOCTL) { |
| 1060 | crit_exit(); |
| 1061 | goto out; |
| 1062 | } |
| 1063 | |
| 1064 | error = 0; |
| 1065 | switch (cmd) { |
| 1066 | case TIOCSBRK: |
| 1067 | si_command(pp, SBREAK, SI_WAIT); |
| 1068 | break; |
| 1069 | case TIOCCBRK: |
| 1070 | si_command(pp, EBREAK, SI_WAIT); |
| 1071 | break; |
| 1072 | case TIOCSDTR: |
| 1073 | (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); |
| 1074 | break; |
| 1075 | case TIOCCDTR: |
| 1076 | (void) si_modem(pp, SET, 0); |
| 1077 | break; |
| 1078 | case TIOCMSET: |
| 1079 | (void) si_modem(pp, SET, *(int *)data); |
| 1080 | break; |
| 1081 | case TIOCMBIS: |
| 1082 | (void) si_modem(pp, BIS, *(int *)data); |
| 1083 | break; |
| 1084 | case TIOCMBIC: |
| 1085 | (void) si_modem(pp, BIC, *(int *)data); |
| 1086 | break; |
| 1087 | case TIOCMGET: |
| 1088 | *(int *)data = si_modem(pp, GET, 0); |
| 1089 | break; |
| 1090 | case TIOCMSDTRWAIT: |
| 1091 | /* must be root since the wait applies to following logins */ |
| 1092 | error = suser_cred(ap->a_cred, 0); |
| 1093 | if (error == 0) |
| 1094 | pp->sp_dtr_wait = *(int *)data * hz / 100; |
| 1095 | break; |
| 1096 | case TIOCMGDTRWAIT: |
| 1097 | *(int *)data = pp->sp_dtr_wait * 100 / hz; |
| 1098 | break; |
| 1099 | default: |
| 1100 | error = ENOTTY; |
| 1101 | } |
| 1102 | crit_exit(); |
| 1103 | |
| 1104 | out: |
| 1105 | DPRINT((pp, DBG_IOCTL|DBG_EXIT, "siioctl ret %d\n", error)); |
| 1106 | if (blocked) |
| 1107 | si_write_enable(pp, 1); |
| 1108 | return(error); |
| 1109 | } |
| 1110 | |
| 1111 | /* |
| 1112 | * Handle the Specialix ioctls. All MUST be called via the CONTROL device |
| 1113 | */ |
| 1114 | static int |
| 1115 | si_Sioctl(cdev_t dev, u_long cmd, caddr_t data, int flag, struct ucred *cred) |
| 1116 | { |
| 1117 | struct si_softc *xsc; |
| 1118 | struct si_port *xpp; |
| 1119 | volatile struct si_reg *regp; |
| 1120 | struct si_tcsi *dp; |
| 1121 | struct si_pstat *sps; |
| 1122 | int *ip, error = 0; |
| 1123 | int card, port; |
| 1124 | int mynor = minor(dev); |
| 1125 | |
| 1126 | DPRINT((0, DBG_ENTRY|DBG_IOCTL, "si_Sioctl(%s,%lx,%x,%x)\n", |
| 1127 | devtoname(dev), cmd, data, flag)); |
| 1128 | |
| 1129 | #if 1 |
| 1130 | DPRINT((0, DBG_IOCTL, "TCSI_PORT=%x\n", TCSI_PORT)); |
| 1131 | DPRINT((0, DBG_IOCTL, "TCSI_CCB=%x\n", TCSI_CCB)); |
| 1132 | DPRINT((0, DBG_IOCTL, "TCSI_TTY=%x\n", TCSI_TTY)); |
| 1133 | #endif |
| 1134 | |
| 1135 | if (!IS_CONTROLDEV(mynor)) { |
| 1136 | DPRINT((0, DBG_IOCTL|DBG_FAIL, "not called from control device!\n")); |
| 1137 | return(ENODEV); |
| 1138 | } |
| 1139 | |
| 1140 | crit_enter(); /* better safe than sorry */ |
| 1141 | |
| 1142 | ip = (int *)data; |
| 1143 | |
| 1144 | #define SUCHECK if ((error = suser_cred(cred, 0))) goto out |
| 1145 | |
| 1146 | switch (cmd) { |
| 1147 | case TCSIPORTS: |
| 1148 | *ip = si_Nports; |
| 1149 | goto out; |
| 1150 | case TCSIMODULES: |
| 1151 | *ip = si_Nmodules; |
| 1152 | goto out; |
| 1153 | case TCSISDBG_ALL: |
| 1154 | SUCHECK; |
| 1155 | si_debug = *ip; |
| 1156 | goto out; |
| 1157 | case TCSIGDBG_ALL: |
| 1158 | *ip = si_debug; |
| 1159 | goto out; |
| 1160 | default: |
| 1161 | /* |
| 1162 | * Check that a controller for this port exists |
| 1163 | */ |
| 1164 | |
| 1165 | /* may also be a struct si_pstat, a superset of si_tcsi */ |
| 1166 | |
| 1167 | dp = (struct si_tcsi *)data; |
| 1168 | sps = (struct si_pstat *)data; |
| 1169 | card = dp->tc_card; |
| 1170 | xsc = devclass_get_softc(si_devclass, card); /* check.. */ |
| 1171 | if (xsc == NULL || xsc->sc_type == SIEMPTY) { |
| 1172 | error = ENOENT; |
| 1173 | goto out; |
| 1174 | } |
| 1175 | /* |
| 1176 | * And check that a port exists |
| 1177 | */ |
| 1178 | port = dp->tc_port; |
| 1179 | if (port < 0 || port >= xsc->sc_nport) { |
| 1180 | error = ENOENT; |
| 1181 | goto out; |
| 1182 | } |
| 1183 | xpp = xsc->sc_ports + port; |
| 1184 | regp = (struct si_reg *)xsc->sc_maddr; |
| 1185 | } |
| 1186 | |
| 1187 | switch (cmd) { |
| 1188 | case TCSIDEBUG: |
| 1189 | #ifdef SI_DEBUG |
| 1190 | SUCHECK; |
| 1191 | if (xpp->sp_debug) |
| 1192 | xpp->sp_debug = 0; |
| 1193 | else { |
| 1194 | xpp->sp_debug = DBG_ALL; |
| 1195 | DPRINT((xpp, DBG_IOCTL, "debug toggled %s\n", |
| 1196 | (xpp->sp_debug&DBG_ALL)?"ON":"OFF")); |
| 1197 | } |
| 1198 | break; |
| 1199 | #else |
| 1200 | error = ENODEV; |
| 1201 | goto out; |
| 1202 | #endif |
| 1203 | case TCSISDBG_LEVEL: |
| 1204 | case TCSIGDBG_LEVEL: |
| 1205 | #ifdef SI_DEBUG |
| 1206 | if (cmd == TCSIGDBG_LEVEL) { |
| 1207 | dp->tc_dbglvl = xpp->sp_debug; |
| 1208 | } else { |
| 1209 | SUCHECK; |
| 1210 | xpp->sp_debug = dp->tc_dbglvl; |
| 1211 | } |
| 1212 | break; |
| 1213 | #else |
| 1214 | error = ENODEV; |
| 1215 | goto out; |
| 1216 | #endif |
| 1217 | case TCSIGRXIT: |
| 1218 | dp->tc_int = regp->rx_int_count; |
| 1219 | break; |
| 1220 | case TCSIRXIT: |
| 1221 | SUCHECK; |
| 1222 | regp->rx_int_count = dp->tc_int; |
| 1223 | break; |
| 1224 | case TCSIGIT: |
| 1225 | dp->tc_int = regp->int_count; |
| 1226 | break; |
| 1227 | case TCSIIT: |
| 1228 | SUCHECK; |
| 1229 | regp->int_count = dp->tc_int; |
| 1230 | break; |
| 1231 | case TCSISTATE: |
| 1232 | dp->tc_int = xpp->sp_ccb->hi_ip; |
| 1233 | break; |
| 1234 | /* these next three use a different structure */ |
| 1235 | case TCSI_PORT: |
| 1236 | SUCHECK; |
| 1237 | si_bcopy(xpp, &sps->tc_siport, sizeof(sps->tc_siport)); |
| 1238 | break; |
| 1239 | case TCSI_CCB: |
| 1240 | SUCHECK; |
| 1241 | si_vbcopy(xpp->sp_ccb, &sps->tc_ccb, sizeof(sps->tc_ccb)); |
| 1242 | break; |
| 1243 | case TCSI_TTY: |
| 1244 | SUCHECK; |
| 1245 | si_bcopy(xpp->sp_tty, &sps->tc_tty, sizeof(sps->tc_tty)); |
| 1246 | break; |
| 1247 | default: |
| 1248 | error = EINVAL; |
| 1249 | goto out; |
| 1250 | } |
| 1251 | out: |
| 1252 | crit_exit(); |
| 1253 | return(error); /* success */ |
| 1254 | } |
| 1255 | |
| 1256 | /* |
| 1257 | * siparam() : Configure line params |
| 1258 | * called at spltty(); |
| 1259 | * this may sleep, does not flush, nor wait for drain, nor block writes |
| 1260 | * caller must arrange this if it's important.. |
| 1261 | */ |
| 1262 | static int |
| 1263 | siparam(struct tty *tp, struct termios *t) |
| 1264 | { |
| 1265 | struct si_port *pp = TP2PP(tp); |
| 1266 | volatile struct si_channel *ccbp; |
| 1267 | int cflag, iflag, oflag, lflag; |
| 1268 | int error = 0; /* shutup gcc */ |
| 1269 | int ispeed = 0; /* shutup gcc */ |
| 1270 | int ospeed = 0; /* shutup gcc */ |
| 1271 | BYTE val; |
| 1272 | |
| 1273 | DPRINT((pp, DBG_ENTRY|DBG_PARAM, "siparam(%x,%x)\n", tp, t)); |
| 1274 | cflag = t->c_cflag; |
| 1275 | iflag = t->c_iflag; |
| 1276 | oflag = t->c_oflag; |
| 1277 | lflag = t->c_lflag; |
| 1278 | DPRINT((pp, DBG_PARAM, "OFLAG 0x%x CFLAG 0x%x IFLAG 0x%x LFLAG 0x%x\n", |
| 1279 | oflag, cflag, iflag, lflag)); |
| 1280 | |
| 1281 | /* XXX - if Jet host and SXDC module, use extended baud rates */ |
| 1282 | |
| 1283 | /* if not hung up.. */ |
| 1284 | if (t->c_ospeed != 0) { |
| 1285 | /* translate baud rate to firmware values */ |
| 1286 | ospeed = ttspeedtab(t->c_ospeed, bdrates); |
| 1287 | ispeed = t->c_ispeed ? |
| 1288 | ttspeedtab(t->c_ispeed, bdrates) : ospeed; |
| 1289 | |
| 1290 | /* enforce legit baud rate */ |
| 1291 | if (ospeed < 0 || ispeed < 0) |
| 1292 | return (EINVAL); |
| 1293 | } |
| 1294 | |
| 1295 | crit_enter(); |
| 1296 | |
| 1297 | ccbp = pp->sp_ccb; |
| 1298 | |
| 1299 | /* ========== set hi_break ========== */ |
| 1300 | val = 0; |
| 1301 | if (iflag & IGNBRK) /* Breaks */ |
| 1302 | val |= BR_IGN; |
| 1303 | if (iflag & BRKINT) /* Interrupt on break? */ |
| 1304 | val |= BR_INT; |
| 1305 | if (iflag & PARMRK) /* Parity mark? */ |
| 1306 | val |= BR_PARMRK; |
| 1307 | if (iflag & IGNPAR) /* Ignore chars with parity errors? */ |
| 1308 | val |= BR_PARIGN; |
| 1309 | ccbp->hi_break = val; |
| 1310 | |
| 1311 | /* ========== set hi_csr ========== */ |
| 1312 | /* if not hung up.. */ |
| 1313 | if (t->c_ospeed != 0) { |
| 1314 | /* Set I/O speeds */ |
| 1315 | val = (ispeed << 4) | ospeed; |
| 1316 | } |
| 1317 | ccbp->hi_csr = val; |
| 1318 | |
| 1319 | /* ========== set hi_mr2 ========== */ |
| 1320 | val = 0; |
| 1321 | if (cflag & CSTOPB) /* Stop bits */ |
| 1322 | val |= MR2_2_STOP; |
| 1323 | else |
| 1324 | val |= MR2_1_STOP; |
| 1325 | /* |
| 1326 | * Enable H/W RTS/CTS handshaking. The default TA/MTA is |
| 1327 | * a DCE, hence the reverse sense of RTS and CTS |
| 1328 | */ |
| 1329 | /* Output Flow - RTS must be raised before data can be sent */ |
| 1330 | if (cflag & CCTS_OFLOW) |
| 1331 | val |= MR2_RTSCONT; |
| 1332 | |
| 1333 | ccbp->hi_mr2 = val; |
| 1334 | |
| 1335 | /* ========== set hi_mr1 ========== */ |
| 1336 | val = 0; |
| 1337 | if (!(cflag & PARENB)) /* Parity */ |
| 1338 | val |= MR1_NONE; |
| 1339 | else |
| 1340 | val |= MR1_WITH; |
| 1341 | if (cflag & PARODD) |
| 1342 | val |= MR1_ODD; |
| 1343 | |
| 1344 | if ((cflag & CS8) == CS8) { /* 8 data bits? */ |
| 1345 | val |= MR1_8_BITS; |
| 1346 | } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ |
| 1347 | val |= MR1_7_BITS; |
| 1348 | } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ |
| 1349 | val |= MR1_6_BITS; |
| 1350 | } else { /* Must be 5 */ |
| 1351 | val |= MR1_5_BITS; |
| 1352 | } |
| 1353 | /* |
| 1354 | * Enable H/W RTS/CTS handshaking. The default TA/MTA is |
| 1355 | * a DCE, hence the reverse sense of RTS and CTS |
| 1356 | */ |
| 1357 | /* Input Flow - CTS is raised when port is ready to receive data */ |
| 1358 | if (cflag & CRTS_IFLOW) |
| 1359 | val |= MR1_CTSCONT; |
| 1360 | |
| 1361 | ccbp->hi_mr1 = val; |
| 1362 | |
| 1363 | /* ========== set hi_mask ========== */ |
| 1364 | val = 0xff; |
| 1365 | if ((cflag & CS8) == CS8) { /* 8 data bits? */ |
| 1366 | val &= 0xFF; |
| 1367 | } else if ((cflag & CS7) == CS7) { /* 7 data bits? */ |
| 1368 | val &= 0x7F; |
| 1369 | } else if ((cflag & CS6) == CS6) { /* 6 data bits? */ |
| 1370 | val &= 0x3F; |
| 1371 | } else { /* Must be 5 */ |
| 1372 | val &= 0x1F; |
| 1373 | } |
| 1374 | if (iflag & ISTRIP) |
| 1375 | val &= 0x7F; |
| 1376 | |
| 1377 | ccbp->hi_mask = val; |
| 1378 | |
| 1379 | /* ========== set hi_prtcl ========== */ |
| 1380 | val = SP_DCEN; /* Monitor DCD always, or TIOCMGET misses it */ |
| 1381 | if (iflag & IXANY) |
| 1382 | val |= SP_TANY; |
| 1383 | if (iflag & IXON) |
| 1384 | val |= SP_TXEN; |
| 1385 | if (iflag & IXOFF) |
| 1386 | val |= SP_RXEN; |
| 1387 | if (iflag & INPCK) |
| 1388 | val |= SP_PAEN; |
| 1389 | |
| 1390 | ccbp->hi_prtcl = val; |
| 1391 | |
| 1392 | |
| 1393 | /* ========== set hi_{rx|tx}{on|off} ========== */ |
| 1394 | /* XXX: the card TOTALLY shields us from the flow control... */ |
| 1395 | ccbp->hi_txon = t->c_cc[VSTART]; |
| 1396 | ccbp->hi_txoff = t->c_cc[VSTOP]; |
| 1397 | |
| 1398 | ccbp->hi_rxon = t->c_cc[VSTART]; |
| 1399 | ccbp->hi_rxoff = t->c_cc[VSTOP]; |
| 1400 | |
| 1401 | /* ========== send settings to the card ========== */ |
| 1402 | /* potential sleep here */ |
| 1403 | if (ccbp->hi_stat == IDLE_CLOSE) /* Not yet open */ |
| 1404 | si_command(pp, LOPEN, SI_WAIT); /* open it */ |
| 1405 | else |
| 1406 | si_command(pp, CONFIG, SI_WAIT); /* change params */ |
| 1407 | |
| 1408 | /* ========== set DTR etc ========== */ |
| 1409 | /* Hangup if ospeed == 0 */ |
| 1410 | if (t->c_ospeed == 0) { |
| 1411 | (void) si_modem(pp, BIC, TIOCM_DTR|TIOCM_RTS); |
| 1412 | } else { |
| 1413 | /* |
| 1414 | * If the previous speed was 0, may need to re-enable |
| 1415 | * the modem signals |
| 1416 | */ |
| 1417 | (void) si_modem(pp, SET, TIOCM_DTR|TIOCM_RTS); |
| 1418 | } |
| 1419 | |
| 1420 | DPRINT((pp, DBG_PARAM, "siparam, complete: MR1 %x MR2 %x HI_MASK %x PRTCL %x HI_BREAK %x\n", |
| 1421 | ccbp->hi_mr1, ccbp->hi_mr2, ccbp->hi_mask, ccbp->hi_prtcl, ccbp->hi_break)); |
| 1422 | |
| 1423 | crit_exit(); |
| 1424 | return(error); |
| 1425 | } |
| 1426 | |
| 1427 | /* |
| 1428 | * Enable or Disable the writes to this channel... |
| 1429 | * "state" -> enabled = 1; disabled = 0; |
| 1430 | */ |
| 1431 | static void |
| 1432 | si_write_enable(struct si_port *pp, int state) |
| 1433 | { |
| 1434 | |
| 1435 | crit_enter(); |
| 1436 | |
| 1437 | if (state) { |
| 1438 | pp->sp_state &= ~SS_BLOCKWRITE; |
| 1439 | if (pp->sp_state & SS_WAITWRITE) { |
| 1440 | pp->sp_state &= ~SS_WAITWRITE; |
| 1441 | /* thunder away! */ |
| 1442 | wakeup((caddr_t)pp); |
| 1443 | } |
| 1444 | } else { |
| 1445 | pp->sp_state |= SS_BLOCKWRITE; |
| 1446 | } |
| 1447 | |
| 1448 | crit_exit(); |
| 1449 | } |
| 1450 | |
| 1451 | /* |
| 1452 | * Set/Get state of modem control lines. |
| 1453 | * Due to DCE-like behaviour of the adapter, some signals need translation: |
| 1454 | * TIOCM_DTR DSR |
| 1455 | * TIOCM_RTS CTS |
| 1456 | */ |
| 1457 | static int |
| 1458 | si_modem(struct si_port *pp, enum si_mctl cmd, int bits) |
| 1459 | { |
| 1460 | volatile struct si_channel *ccbp; |
| 1461 | int x; |
| 1462 | |
| 1463 | DPRINT((pp, DBG_ENTRY|DBG_MODEM, "si_modem(%x,%s,%x)\n", pp, si_mctl2str(cmd), bits)); |
| 1464 | ccbp = pp->sp_ccb; /* Find channel address */ |
| 1465 | switch (cmd) { |
| 1466 | case GET: |
| 1467 | x = ccbp->hi_ip; |
| 1468 | bits = TIOCM_LE; |
| 1469 | if (x & IP_DCD) bits |= TIOCM_CAR; |
| 1470 | if (x & IP_DTR) bits |= TIOCM_DTR; |
| 1471 | if (x & IP_RTS) bits |= TIOCM_RTS; |
| 1472 | if (x & IP_RI) bits |= TIOCM_RI; |
| 1473 | return(bits); |
| 1474 | case SET: |
| 1475 | ccbp->hi_op &= ~(OP_DSR|OP_CTS); |
| 1476 | /* fall through */ |
| 1477 | case BIS: |
| 1478 | x = 0; |
| 1479 | if (bits & TIOCM_DTR) |
| 1480 | x |= OP_DSR; |
| 1481 | if (bits & TIOCM_RTS) |
| 1482 | x |= OP_CTS; |
| 1483 | ccbp->hi_op |= x; |
| 1484 | break; |
| 1485 | case BIC: |
| 1486 | if (bits & TIOCM_DTR) |
| 1487 | ccbp->hi_op &= ~OP_DSR; |
| 1488 | if (bits & TIOCM_RTS) |
| 1489 | ccbp->hi_op &= ~OP_CTS; |
| 1490 | } |
| 1491 | return 0; |
| 1492 | } |
| 1493 | |
| 1494 | /* |
| 1495 | * Handle change of modem state |
| 1496 | */ |
| 1497 | static void |
| 1498 | si_modem_state(struct si_port *pp, struct tty *tp, int hi_ip) |
| 1499 | { |
| 1500 | /* if a modem dev */ |
| 1501 | if (hi_ip & IP_DCD) { |
| 1502 | if (!(pp->sp_last_hi_ip & IP_DCD)) { |
| 1503 | DPRINT((pp, DBG_INTR, "modem carr on t_line %d\n", |
| 1504 | tp->t_line)); |
| 1505 | (void)(*linesw[tp->t_line].l_modem)(tp, 1); |
| 1506 | } |
| 1507 | } else { |
| 1508 | if (pp->sp_last_hi_ip & IP_DCD) { |
| 1509 | DPRINT((pp, DBG_INTR, "modem carr off\n")); |
| 1510 | if ((*linesw[tp->t_line].l_modem)(tp, 0)) |
| 1511 | (void) si_modem(pp, SET, 0); |
| 1512 | } |
| 1513 | } |
| 1514 | pp->sp_last_hi_ip = hi_ip; |
| 1515 | |
| 1516 | } |
| 1517 | |
| 1518 | /* |
| 1519 | * Poller to catch missed interrupts. |
| 1520 | * |
| 1521 | * Note that the SYSV Specialix drivers poll at 100 times per second to get |
| 1522 | * better response. We could really use a "periodic" version timeout(). :-) |
| 1523 | */ |
| 1524 | #ifdef POLL |
| 1525 | static void |
| 1526 | si_poll(void *nothing) |
| 1527 | { |
| 1528 | struct si_softc *sc; |
| 1529 | int i; |
| 1530 | volatile struct si_reg *regp; |
| 1531 | struct si_port *pp; |
| 1532 | int lost, port; |
| 1533 | |
| 1534 | DPRINT((0, DBG_POLL, "si_poll()\n")); |
| 1535 | crit_enter(); |
| 1536 | if (in_intr) |
| 1537 | goto out; |
| 1538 | lost = 0; |
| 1539 | for (i = 0; i < si_numunits; i++) { |
| 1540 | sc = devclass_get_softc(si_devclass, i); |
| 1541 | if (sc == NULL || sc->sc_type == SIEMPTY) |
| 1542 | continue; |
| 1543 | regp = (struct si_reg *)sc->sc_maddr; |
| 1544 | |
| 1545 | /* |
| 1546 | * See if there has been a pending interrupt for 2 seconds |
| 1547 | * or so. The test (int_scounter >= 200) won't correspond |
| 1548 | * to 2 seconds if int_count gets changed. |
| 1549 | */ |
| 1550 | if (regp->int_pending != 0) { |
| 1551 | if (regp->int_scounter >= 200 && |
| 1552 | regp->initstat == 1) { |
| 1553 | printf("si%d: lost intr\n", i); |
| 1554 | lost++; |
| 1555 | } |
| 1556 | } else { |
| 1557 | regp->int_scounter = 0; |
| 1558 | } |
| 1559 | |
| 1560 | /* |
| 1561 | * gripe about no input flow control.. |
| 1562 | */ |
| 1563 | pp = sc->sc_ports; |
| 1564 | for (port = 0; port < sc->sc_nport; pp++, port++) { |
| 1565 | if (pp->sp_delta_overflows > 0) { |
| 1566 | printf("si%d: %d tty level buffer overflows\n", |
| 1567 | i, pp->sp_delta_overflows); |
| 1568 | pp->sp_delta_overflows = 0; |
| 1569 | } |
| 1570 | } |
| 1571 | } |
| 1572 | if (lost || si_realpoll) |
| 1573 | si_intr(NULL); /* call intr with fake vector */ |
| 1574 | out: |
| 1575 | crit_exit(); |
| 1576 | |
| 1577 | callout_reset(&poll_ch, si_pollrate, si_poll, NULL); |
| 1578 | } |
| 1579 | #endif /* ifdef POLL */ |
| 1580 | |
| 1581 | /* |
| 1582 | * The interrupt handler polls ALL ports on ALL adapters each time |
| 1583 | * it is called. |
| 1584 | */ |
| 1585 | |
| 1586 | static BYTE si_rxbuf[SI_BUFFERSIZE]; /* input staging area */ |
| 1587 | static BYTE si_txbuf[SI_BUFFERSIZE]; /* output staging area */ |
| 1588 | |
| 1589 | void |
| 1590 | si_intr(void *arg) |
| 1591 | { |
| 1592 | struct si_softc *sc; |
| 1593 | struct si_port *pp; |
| 1594 | volatile struct si_channel *ccbp; |
| 1595 | struct tty *tp; |
| 1596 | volatile caddr_t maddr; |
| 1597 | BYTE op, ip; |
| 1598 | int x, card, port, n, i, isopen; |
| 1599 | volatile BYTE *z; |
| 1600 | BYTE c; |
| 1601 | |
| 1602 | sc = arg; |
| 1603 | |
| 1604 | DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "si_intr\n")); |
| 1605 | if (in_intr) |
| 1606 | return; |
| 1607 | in_intr = 1; |
| 1608 | |
| 1609 | /* |
| 1610 | * When we get an int we poll all the channels and do ALL pending |
| 1611 | * work, not just the first one we find. This allows all cards to |
| 1612 | * share the same vector. |
| 1613 | * |
| 1614 | * XXX - But if we're sharing the vector with something that's NOT |
| 1615 | * a SI/XIO/SX card, we may be making more work for ourselves. |
| 1616 | */ |
| 1617 | for (card = 0; card < si_numunits; card++) { |
| 1618 | sc = devclass_get_softc(si_devclass, card); |
| 1619 | if (sc == NULL || sc->sc_type == SIEMPTY) |
| 1620 | continue; |
| 1621 | |
| 1622 | /* |
| 1623 | * First, clear the interrupt |
| 1624 | */ |
| 1625 | switch(sc->sc_type) { |
| 1626 | case SIHOST: |
| 1627 | maddr = sc->sc_maddr; |
| 1628 | ((volatile struct si_reg *)maddr)->int_pending = 0; |
| 1629 | /* flag nothing pending */ |
| 1630 | *(maddr+SIINTCL) = 0x00; /* Set IRQ clear */ |
| 1631 | *(maddr+SIINTCL_CL) = 0x00; /* Clear IRQ clear */ |
| 1632 | break; |
| 1633 | case SIHOST2: |
| 1634 | maddr = sc->sc_maddr; |
| 1635 | ((volatile struct si_reg *)maddr)->int_pending = 0; |
| 1636 | *(maddr+SIPLIRQCLR) = 0x00; |
| 1637 | *(maddr+SIPLIRQCLR) = 0x10; |
| 1638 | break; |
| 1639 | case SIPCI: |
| 1640 | maddr = sc->sc_maddr; |
| 1641 | ((volatile struct si_reg *)maddr)->int_pending = 0; |
| 1642 | *(maddr+SIPCIINTCL) = 0x0; |
| 1643 | break; |
| 1644 | case SIJETPCI: /* fall through to JETISA case */ |
| 1645 | case SIJETISA: |
| 1646 | maddr = sc->sc_maddr; |
| 1647 | ((volatile struct si_reg *)maddr)->int_pending = 0; |
| 1648 | *(maddr+SIJETINTCL) = 0x0; |
| 1649 | break; |
| 1650 | case SIEISA: |
| 1651 | maddr = sc->sc_maddr; |
| 1652 | ((volatile struct si_reg *)maddr)->int_pending = 0; |
| 1653 | (void)inb(sc->sc_iobase + 3); |
| 1654 | break; |
| 1655 | case SIEMPTY: |
| 1656 | default: |
| 1657 | continue; |
| 1658 | } |
| 1659 | ((volatile struct si_reg *)maddr)->int_scounter = 0; |
| 1660 | |
| 1661 | /* |
| 1662 | * check each port |
| 1663 | */ |
| 1664 | for (pp = sc->sc_ports, port = 0; port < sc->sc_nport; |
| 1665 | pp++, port++) { |
| 1666 | ccbp = pp->sp_ccb; |
| 1667 | tp = pp->sp_tty; |
| 1668 | |
| 1669 | /* |
| 1670 | * See if a command has completed ? |
| 1671 | */ |
| 1672 | if (ccbp->hi_stat != pp->sp_pend) { |
| 1673 | DPRINT((pp, DBG_INTR, |
| 1674 | "si_intr hi_stat = 0x%x, pend = %d\n", |
| 1675 | ccbp->hi_stat, pp->sp_pend)); |
| 1676 | switch(pp->sp_pend) { |
| 1677 | case LOPEN: |
| 1678 | case MPEND: |
| 1679 | case MOPEN: |
| 1680 | case CONFIG: |
| 1681 | case SBREAK: |
| 1682 | case EBREAK: |
| 1683 | pp->sp_pend = ccbp->hi_stat; |
| 1684 | /* sleeping in si_command */ |
| 1685 | wakeup(&pp->sp_state); |
| 1686 | break; |
| 1687 | default: |
| 1688 | pp->sp_pend = ccbp->hi_stat; |
| 1689 | } |
| 1690 | } |
| 1691 | |
| 1692 | /* |
| 1693 | * Continue on if it's closed |
| 1694 | */ |
| 1695 | if (ccbp->hi_stat == IDLE_CLOSE) { |
| 1696 | continue; |
| 1697 | } |
| 1698 | |
| 1699 | /* |
| 1700 | * Do modem state change if not a local device |
| 1701 | */ |
| 1702 | si_modem_state(pp, tp, ccbp->hi_ip); |
| 1703 | |
| 1704 | /* |
| 1705 | * Check to see if we should 'receive' characters. |
| 1706 | */ |
| 1707 | if (tp->t_state & TS_CONNECTED && |
| 1708 | tp->t_state & TS_ISOPEN) |
| 1709 | isopen = 1; |
| 1710 | else |
| 1711 | isopen = 0; |
| 1712 | |
| 1713 | /* |
| 1714 | * Do input break processing |
| 1715 | */ |
| 1716 | if (ccbp->hi_state & ST_BREAK) { |
| 1717 | if (isopen) { |
| 1718 | (*linesw[tp->t_line].l_rint)(TTY_BI, tp); |
| 1719 | } |
| 1720 | ccbp->hi_state &= ~ST_BREAK; /* A Bit iffy this */ |
| 1721 | DPRINT((pp, DBG_INTR, "si_intr break\n")); |
| 1722 | } |
| 1723 | |
| 1724 | /* |
| 1725 | * Do RX stuff - if not open then dump any characters. |
| 1726 | * XXX: This is VERY messy and needs to be cleaned up. |
| 1727 | * |
| 1728 | * XXX: can we leave data in the host adapter buffer |
| 1729 | * when the clists are full? That may be dangerous |
| 1730 | * if the user cannot get an interrupt signal through. |
| 1731 | */ |
| 1732 | |
| 1733 | more_rx: /* XXX Sorry. the nesting was driving me bats! :-( */ |
| 1734 | |
| 1735 | if (!isopen) { |
| 1736 | ccbp->hi_rxopos = ccbp->hi_rxipos; |
| 1737 | goto end_rx; |
| 1738 | } |
| 1739 | |
| 1740 | /* |
| 1741 | * If the tty input buffers are blocked, stop emptying |
| 1742 | * the incoming buffers and let the auto flow control |
| 1743 | * assert.. |
| 1744 | */ |
| 1745 | if (tp->t_state & TS_TBLOCK) { |
| 1746 | goto end_rx; |
| 1747 | } |
| 1748 | |
| 1749 | /* |
| 1750 | * Process read characters if not skipped above |
| 1751 | */ |
| 1752 | op = ccbp->hi_rxopos; |
| 1753 | ip = ccbp->hi_rxipos; |
| 1754 | c = ip - op; |
| 1755 | if (c == 0) { |
| 1756 | goto end_rx; |
| 1757 | } |
| 1758 | |
| 1759 | n = c & 0xff; |
| 1760 | if (n > 250) |
| 1761 | n = 250; |
| 1762 | |
| 1763 | DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", |
| 1764 | n, op, ip)); |
| 1765 | |
| 1766 | /* |
| 1767 | * Suck characters out of host card buffer into the |
| 1768 | * "input staging buffer" - so that we dont leave the |
| 1769 | * host card in limbo while we're possibly echoing |
| 1770 | * characters and possibly flushing input inside the |
| 1771 | * ldisc l_rint() routine. |
| 1772 | */ |
| 1773 | if (n <= SI_BUFFERSIZE - op) { |
| 1774 | |
| 1775 | DPRINT((pp, DBG_INTR, "\tsingle copy\n")); |
| 1776 | z = ccbp->hi_rxbuf + op; |
| 1777 | si_vbcopy(z, si_rxbuf, n); |
| 1778 | |
| 1779 | op += n; |
| 1780 | } else { |
| 1781 | x = SI_BUFFERSIZE - op; |
| 1782 | |
| 1783 | DPRINT((pp, DBG_INTR, "\tdouble part 1 %d\n", x)); |
| 1784 | z = ccbp->hi_rxbuf + op; |
| 1785 | si_vbcopy(z, si_rxbuf, x); |
| 1786 | |
| 1787 | DPRINT((pp, DBG_INTR, "\tdouble part 2 %d\n", |
| 1788 | n - x)); |
| 1789 | z = ccbp->hi_rxbuf; |
| 1790 | si_vbcopy(z, si_rxbuf + x, n - x); |
| 1791 | |
| 1792 | op += n; |
| 1793 | } |
| 1794 | |
| 1795 | /* clear collected characters from buffer */ |
| 1796 | ccbp->hi_rxopos = op; |
| 1797 | |
| 1798 | DPRINT((pp, DBG_INTR, "n = %d, op = %d, ip = %d\n", |
| 1799 | n, op, ip)); |
| 1800 | |
| 1801 | /* |
| 1802 | * at this point... |
| 1803 | * n = number of chars placed in si_rxbuf |
| 1804 | */ |
| 1805 | |
| 1806 | /* |
| 1807 | * Avoid the grotesquely inefficient lineswitch |
| 1808 | * routine (ttyinput) in "raw" mode. It usually |
| 1809 | * takes about 450 instructions (that's without |
| 1810 | * canonical processing or echo!). slinput is |
| 1811 | * reasonably fast (usually 40 instructions |
| 1812 | * plus call overhead). |
| 1813 | */ |
| 1814 | if (tp->t_state & TS_CAN_BYPASS_L_RINT) { |
| 1815 | |
| 1816 | /* block if the driver supports it */ |
| 1817 | if (tp->t_rawq.c_cc + n >= SI_I_HIGH_WATER && |
| 1818 | (tp->t_cflag & CRTS_IFLOW || |
| 1819 | tp->t_iflag & IXOFF) && |
| 1820 | !(tp->t_state & TS_TBLOCK)) |
| 1821 | ttyblock(tp); |
| 1822 | |
| 1823 | tk_nin += n; |
| 1824 | tk_rawcc += n; |
| 1825 | tp->t_rawcc += n; |
| 1826 | |
| 1827 | pp->sp_delta_overflows += |
| 1828 | b_to_q((char *)si_rxbuf, n, &tp->t_rawq); |
| 1829 | |
| 1830 | ttwakeup(tp); |
| 1831 | if (tp->t_state & TS_TTSTOP && |
| 1832 | (tp->t_iflag & IXANY || |
| 1833 | tp->t_cc[VSTART] == tp->t_cc[VSTOP])) { |
| 1834 | tp->t_state &= ~TS_TTSTOP; |
| 1835 | tp->t_lflag &= ~FLUSHO; |
| 1836 | si_start(tp); |
| 1837 | } |
| 1838 | } else { |
| 1839 | /* |
| 1840 | * It'd be nice to not have to go through the |
| 1841 | * function call overhead for each char here. |
| 1842 | * It'd be nice to block input it, saving a |
| 1843 | * loop here and the call/return overhead. |
| 1844 | */ |
| 1845 | for(x = 0; x < n; x++) { |
| 1846 | i = si_rxbuf[x]; |
| 1847 | if ((*linesw[tp->t_line].l_rint)(i, tp) |
| 1848 | == -1) { |
| 1849 | pp->sp_delta_overflows++; |
| 1850 | } |
| 1851 | /* |
| 1852 | * doesn't seem to be much point doing |
| 1853 | * this here.. this driver has no |
| 1854 | * softtty processing! ?? |
| 1855 | */ |
| 1856 | if (pp->sp_hotchar && i == pp->sp_hotchar) { |
| 1857 | setsofttty(); |
| 1858 | } |
| 1859 | } |
| 1860 | } |
| 1861 | goto more_rx; /* try for more until RXbuf is empty */ |
| 1862 | |
| 1863 | end_rx: /* XXX: Again, sorry about the gotos.. :-) */ |
| 1864 | |
| 1865 | /* |
| 1866 | * Do TX stuff |
| 1867 | */ |
| 1868 | (*linesw[tp->t_line].l_start)(tp); |
| 1869 | |
| 1870 | } /* end of for (all ports on this controller) */ |
| 1871 | } /* end of for (all controllers) */ |
| 1872 | |
| 1873 | in_intr = 0; |
| 1874 | DPRINT((0, arg == NULL ? DBG_POLL:DBG_INTR, "end si_intr\n")); |
| 1875 | } |
| 1876 | |
| 1877 | /* |
| 1878 | * Nudge the transmitter... |
| 1879 | * |
| 1880 | * XXX: I inherited some funny code here. It implies the host card only |
| 1881 | * interrupts when the transmit buffer reaches the low-water-mark, and does |
| 1882 | * not interrupt when it's actually hits empty. In some cases, we have |
| 1883 | * processes waiting for complete drain, and we need to simulate an interrupt |
| 1884 | * about when we think the buffer is going to be empty (and retry if not). |
| 1885 | * I really am not certain about this... I *need* the hardware manuals. |
| 1886 | */ |
| 1887 | static void |
| 1888 | si_start(struct tty *tp) |
| 1889 | { |
| 1890 | struct si_port *pp; |
| 1891 | volatile struct si_channel *ccbp; |
| 1892 | struct clist *qp; |
| 1893 | BYTE ipos; |
| 1894 | int nchar; |
| 1895 | int count, n, amount, buffer_full; |
| 1896 | |
| 1897 | crit_enter(); |
| 1898 | |
| 1899 | qp = &tp->t_outq; |
| 1900 | pp = TP2PP(tp); |
| 1901 | |
| 1902 | DPRINT((pp, DBG_ENTRY|DBG_START, |
| 1903 | "si_start(%x) t_state %x sp_state %x t_outq.c_cc %d\n", |
| 1904 | tp, tp->t_state, pp->sp_state, qp->c_cc)); |
| 1905 | |
| 1906 | if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP)) |
| 1907 | goto out; |
| 1908 | |
| 1909 | buffer_full = 0; |
| 1910 | ccbp = pp->sp_ccb; |
| 1911 | |
| 1912 | count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; |
| 1913 | DPRINT((pp, DBG_START, "count %d\n", (BYTE)count)); |
| 1914 | |
| 1915 | while ((nchar = qp->c_cc) > 0) { |
| 1916 | if ((BYTE)count >= 255) { |
| 1917 | buffer_full++; |
| 1918 | break; |
| 1919 | } |
| 1920 | amount = min(nchar, (255 - (BYTE)count)); |
| 1921 | ipos = (unsigned int)ccbp->hi_txipos; |
| 1922 | n = q_to_b(&tp->t_outq, si_txbuf, amount); |
| 1923 | /* will it fit in one lump? */ |
| 1924 | if ((SI_BUFFERSIZE - ipos) >= n) { |
| 1925 | si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], n); |
| 1926 | } else { |
| 1927 | si_bcopyv(si_txbuf, &ccbp->hi_txbuf[ipos], |
| 1928 | SI_BUFFERSIZE - ipos); |
| 1929 | si_bcopyv(si_txbuf + (SI_BUFFERSIZE - ipos), |
| 1930 | &ccbp->hi_txbuf[0], n - (SI_BUFFERSIZE - ipos)); |
| 1931 | } |
| 1932 | ccbp->hi_txipos += n; |
| 1933 | count = (int)ccbp->hi_txipos - (int)ccbp->hi_txopos; |
| 1934 | } |
| 1935 | |
| 1936 | if (count != 0 && nchar == 0) { |
| 1937 | tp->t_state |= TS_BUSY; |
| 1938 | } else { |
| 1939 | tp->t_state &= ~TS_BUSY; |
| 1940 | } |
| 1941 | |
| 1942 | /* wakeup time? */ |
| 1943 | ttwwakeup(tp); |
| 1944 | |
| 1945 | DPRINT((pp, DBG_START, "count %d, nchar %d, tp->t_state 0x%x\n", |
| 1946 | (BYTE)count, nchar, tp->t_state)); |
| 1947 | |
| 1948 | if (tp->t_state & TS_BUSY) |
| 1949 | { |
| 1950 | int time; |
| 1951 | |
| 1952 | time = ttspeedtab(tp->t_ospeed, chartimes); |
| 1953 | |
| 1954 | if (time > 0) { |
| 1955 | if (time < nchar) |
| 1956 | time = nchar / time; |
| 1957 | else |
| 1958 | time = 2; |
| 1959 | } else { |
| 1960 | DPRINT((pp, DBG_START, |
| 1961 | "bad char time value! %d\n", time)); |
| 1962 | time = hz/10; |
| 1963 | } |
| 1964 | |
| 1965 | if ((pp->sp_state & (SS_LSTART|SS_INLSTART)) == SS_LSTART) { |
| 1966 | callout_stop(&pp->lstart_ch); |
| 1967 | } else { |
| 1968 | pp->sp_state |= SS_LSTART; |
| 1969 | } |
| 1970 | DPRINT((pp, DBG_START, "arming lstart, time=%d\n", time)); |
| 1971 | callout_reset(&pp->lstart_ch, time, si_lstart, (void *)pp); |
| 1972 | } |
| 1973 | |
| 1974 | out: |
| 1975 | crit_exit(); |
| 1976 | DPRINT((pp, DBG_EXIT|DBG_START, "leave si_start()\n")); |
| 1977 | } |
| 1978 | |
| 1979 | /* |
| 1980 | * Note: called at splsoftclock from the timeout code |
| 1981 | * This has to deal with two things... cause wakeups while waiting for |
| 1982 | * tty drains on last process exit, and call l_start at about the right |
| 1983 | * time for protocols like ppp. |
| 1984 | */ |
| 1985 | static void |
| 1986 | si_lstart(void *arg) |
| 1987 | { |
| 1988 | struct si_port *pp = arg; |
| 1989 | struct tty *tp; |
| 1990 | |
| 1991 | DPRINT((pp, DBG_ENTRY|DBG_LSTART, "si_lstart(%x) sp_state %x\n", |
| 1992 | pp, pp->sp_state)); |
| 1993 | |
| 1994 | crit_enter(); |
| 1995 | |
| 1996 | if ((pp->sp_state & SS_OPEN) == 0 || (pp->sp_state & SS_LSTART) == 0) { |
| 1997 | crit_exit(); |
| 1998 | return; |
| 1999 | } |
| 2000 | pp->sp_state &= ~SS_LSTART; |
| 2001 | pp->sp_state |= SS_INLSTART; |
| 2002 | |
| 2003 | tp = pp->sp_tty; |
| 2004 | |
| 2005 | /* deal with the process exit case */ |
| 2006 | ttwwakeup(tp); |
| 2007 | |
| 2008 | /* nudge protocols - eg: ppp */ |
| 2009 | (*linesw[tp->t_line].l_start)(tp); |
| 2010 | |
| 2011 | pp->sp_state &= ~SS_INLSTART; |
| 2012 | crit_exit(); |
| 2013 | } |
| 2014 | |
| 2015 | /* |
| 2016 | * Stop output on a line. called at spltty(); |
| 2017 | */ |
| 2018 | void |
| 2019 | si_stop(struct tty *tp, int rw) |
| 2020 | { |
| 2021 | volatile struct si_channel *ccbp; |
| 2022 | struct si_port *pp; |
| 2023 | |
| 2024 | pp = TP2PP(tp); |
| 2025 | ccbp = pp->sp_ccb; |
| 2026 | |
| 2027 | DPRINT((TP2PP(tp), DBG_ENTRY|DBG_STOP, "si_stop(%x,%x)\n", tp, rw)); |
| 2028 | |
| 2029 | /* XXX: must check (rw & FWRITE | FREAD) etc flushing... */ |
| 2030 | if (rw & FWRITE) { |
| 2031 | /* what level are we meant to be flushing anyway? */ |
| 2032 | if (tp->t_state & TS_BUSY) { |
| 2033 | si_command(TP2PP(tp), WFLUSH, SI_NOWAIT); |
| 2034 | tp->t_state &= ~TS_BUSY; |
| 2035 | ttwwakeup(tp); /* Bruce???? */ |
| 2036 | } |
| 2037 | } |
| 2038 | #if 1 /* XXX: this doesn't work right yet.. */ |
| 2039 | /* XXX: this may have been failing because we used to call l_rint() |
| 2040 | * while we were looping based on these two counters. Now, we collect |
| 2041 | * the data and then loop stuffing it into l_rint(), making this |
| 2042 | * useless. Should we cause this to blow away the staging buffer? |
| 2043 | */ |
| 2044 | if (rw & FREAD) { |
| 2045 | ccbp->hi_rxopos = ccbp->hi_rxipos; |
| 2046 | } |
| 2047 | #endif |
| 2048 | } |
| 2049 | |
| 2050 | /* |
| 2051 | * Issue a command to the host card CPU. |
| 2052 | */ |
| 2053 | |
| 2054 | static void |
| 2055 | si_command(struct si_port *pp, int cmd, int waitflag) |
| 2056 | { |
| 2057 | volatile struct si_channel *ccbp = pp->sp_ccb; |
| 2058 | int x; |
| 2059 | |
| 2060 | DPRINT((pp, DBG_ENTRY|DBG_PARAM, "si_command(%x,%x,%d): hi_stat 0x%x\n", |
| 2061 | pp, cmd, waitflag, ccbp->hi_stat)); |
| 2062 | |
| 2063 | crit_enter(); /* Keep others out */ |
| 2064 | |
| 2065 | /* wait until it's finished what it was doing.. */ |
| 2066 | /* XXX: sits in IDLE_BREAK until something disturbs it or break |
| 2067 | * is turned off. */ |
| 2068 | while((x = ccbp->hi_stat) != IDLE_OPEN && |
| 2069 | x != IDLE_CLOSE && |
| 2070 | x != IDLE_BREAK && |
| 2071 | x != cmd) { |
| 2072 | if (in_intr) { /* Prevent sleep in intr */ |
| 2073 | DPRINT((pp, DBG_PARAM, |
| 2074 | "cmd intr collision - completing %d\trequested %d\n", |
| 2075 | x, cmd)); |
| 2076 | crit_exit(); |
| 2077 | return; |
| 2078 | } else if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, PCATCH, |
| 2079 | "sicmd1", 1)) { |
| 2080 | crit_exit(); |
| 2081 | return; |
| 2082 | } |
| 2083 | } |
| 2084 | /* it should now be in IDLE_{OPEN|CLOSE|BREAK}, or "cmd" */ |
| 2085 | |
| 2086 | /* if there was a pending command, cause a state-change wakeup */ |
| 2087 | switch(pp->sp_pend) { |
| 2088 | case LOPEN: |
| 2089 | case MPEND: |
| 2090 | case MOPEN: |
| 2091 | case CONFIG: |
| 2092 | case SBREAK: |
| 2093 | case EBREAK: |
| 2094 | wakeup(&pp->sp_state); |
| 2095 | break; |
| 2096 | default: |
| 2097 | break; |
| 2098 | } |
| 2099 | |
| 2100 | pp->sp_pend = cmd; /* New command pending */ |
| 2101 | ccbp->hi_stat = cmd; /* Post it */ |
| 2102 | |
| 2103 | if (waitflag) { |
| 2104 | if (in_intr) { /* If in interrupt handler */ |
| 2105 | DPRINT((pp, DBG_PARAM, |
| 2106 | "attempt to sleep in si_intr - cmd req %d\n", |
| 2107 | cmd)); |
| 2108 | crit_exit(); |
| 2109 | return; |
| 2110 | } else while(ccbp->hi_stat != IDLE_OPEN && |
| 2111 | ccbp->hi_stat != IDLE_BREAK) { |
| 2112 | if (ttysleep(pp->sp_tty, (caddr_t)&pp->sp_state, PCATCH, |
| 2113 | "sicmd2", 0)) |
| 2114 | break; |
| 2115 | } |
| 2116 | } |
| 2117 | crit_exit(); |
| 2118 | } |
| 2119 | |
| 2120 | static void |
| 2121 | si_disc_optim(struct tty *tp, struct termios *t, struct si_port *pp) |
| 2122 | { |
| 2123 | /* |
| 2124 | * XXX can skip a lot more cases if Smarts. Maybe |
| 2125 | * (IGNCR | ISTRIP | IXON) in c_iflag. But perhaps we |
| 2126 | * shouldn't skip if (TS_CNTTB | TS_LNCH) is set in t_state. |
| 2127 | */ |
| 2128 | if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) && |
| 2129 | (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) && |
| 2130 | (!(t->c_iflag & PARMRK) || |
| 2131 | (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) && |
| 2132 | !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) && |
| 2133 | linesw[tp->t_line].l_rint == ttyinput) |
| 2134 | tp->t_state |= TS_CAN_BYPASS_L_RINT; |
| 2135 | else |
| 2136 | tp->t_state &= ~TS_CAN_BYPASS_L_RINT; |
| 2137 | pp->sp_hotchar = linesw[tp->t_line].l_hotchar; |
| 2138 | DPRINT((pp, DBG_OPTIM, "bypass: %s, hotchar: %x\n", |
| 2139 | (tp->t_state & TS_CAN_BYPASS_L_RINT) ? "on" : "off", |
| 2140 | pp->sp_hotchar)); |
| 2141 | } |
| 2142 | |
| 2143 | |
| 2144 | #ifdef SI_DEBUG |
| 2145 | |
| 2146 | void |
| 2147 | si_dprintf(struct si_port *pp, int flags, const char *fmt, ...) |
| 2148 | { |
| 2149 | __va_list ap; |
| 2150 | |
| 2151 | if ((pp == NULL && (si_debug&flags)) || |
| 2152 | (pp != NULL && ((pp->sp_debug&flags) || (si_debug&flags)))) { |
| 2153 | if (pp != NULL) |
| 2154 | printf("%ci%d(%d): ", 's', |
| 2155 | (int)SI_CARD(minor(pp->sp_tty->t_dev)), |
| 2156 | (int)SI_PORT(minor(pp->sp_tty->t_dev))); |
| 2157 | __va_start(ap, fmt); |
| 2158 | vprintf(fmt, ap); |
| 2159 | __va_end(ap); |
| 2160 | } |
| 2161 | } |
| 2162 | |
| 2163 | static char * |
| 2164 | si_mctl2str(enum si_mctl cmd) |
| 2165 | { |
| 2166 | switch (cmd) { |
| 2167 | case GET: |
| 2168 | return("GET"); |
| 2169 | case SET: |
| 2170 | return("SET"); |
| 2171 | case BIS: |
| 2172 | return("BIS"); |
| 2173 | case BIC: |
| 2174 | return("BIC"); |
| 2175 | } |
| 2176 | return("BAD"); |
| 2177 | } |
| 2178 | |
| 2179 | #endif /* DEBUG */ |
| 2180 | |
| 2181 | static char * |
| 2182 | si_modulename(int host_type, int uart_type) |
| 2183 | { |
| 2184 | switch (host_type) { |
| 2185 | /* Z280 based cards */ |
| 2186 | case SIEISA: |
| 2187 | case SIHOST2: |
| 2188 | case SIHOST: |
| 2189 | case SIPCI: |
| 2190 | switch (uart_type) { |
| 2191 | case 0: |
| 2192 | return(" (XIO)"); |
| 2193 | case 1: |
| 2194 | return(" (SI)"); |
| 2195 | } |
| 2196 | break; |
| 2197 | /* T225 based hosts */ |
| 2198 | case SIJETPCI: |
| 2199 | case SIJETISA: |
| 2200 | switch (uart_type) { |
| 2201 | case 0: |
| 2202 | return(" (SI)"); |
| 2203 | case 40: |
| 2204 | return(" (XIO)"); |
| 2205 | case 72: |
| 2206 | return(" (SXDC)"); |
| 2207 | } |
| 2208 | break; |
| 2209 | } |
| 2210 | return(""); |
| 2211 | } |