| 1 | /*- |
| 2 | * $FreeBSD: src/sys/dev/dgb/dgm.c,v 1.31.2.3 2001/10/07 09:02:25 brian Exp $ |
| 3 | * $DragonFly: src/sys/dev/serial/dgb/dgm.c,v 1.3 2003/06/25 03:55:47 dillon Exp $ |
| 4 | * |
| 5 | * This driver and the associated header files support the ISA PC/Xem |
| 6 | * Digiboards. Its evolutionary roots are described below. |
| 7 | * Jack O'Neill <jack@diamond.xtalwind.net> |
| 8 | * |
| 9 | * Digiboard driver. |
| 10 | * |
| 11 | * Stage 1. "Better than nothing". |
| 12 | * Stage 2. "Gee, it works!". |
| 13 | * |
| 14 | * Redistribution and use in source and binary forms, with or without |
| 15 | * modification, are permitted provided that the following conditions |
| 16 | * are met: |
| 17 | * 1. Redistributions of source code must retain the above copyright |
| 18 | * notice, this list of conditions, and the following disclaimer, |
| 19 | * without modification, immediately at the beginning of the file. |
| 20 | * 2. Redistributions of binary code must retain the above copyright |
| 21 | * notice, this list of conditions, and the following disclaimer, |
| 22 | * without modification, in the accompanying documentation. |
| 23 | * 3. The name of the author may not be used to endorse or promote products |
| 24 | * derived from this software without specific prior written permission. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
| 30 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 36 | * SUCH DAMAGE. |
| 37 | * |
| 38 | * Written by Sergey Babkin, |
| 39 | * Joint Stock Commercial Bank "Chelindbank" |
| 40 | * (Chelyabinsk, Russia) |
| 41 | * babkin@freebsd.org |
| 42 | * |
| 43 | * Assorted hacks to make it more functional and working under 3.0-current. |
| 44 | * Fixed broken routines to prevent processes hanging on closed (thanks |
| 45 | * to Bruce for his patience and assistance). Thanks also to Maxim Bolotin |
| 46 | * <max@run.net> for his patches which did most of the work to get this |
| 47 | * running under 2.2/3.0-current. |
| 48 | * Implemented ioctls: TIOCMSDTRWAIT, TIOCMGDTRWAIT, TIOCTIMESTAMP & |
| 49 | * TIOCDCDTIMESTAMP. |
| 50 | * Sysctl debug flag is now a bitflag, to filter noise during debugging. |
| 51 | * David L. Nugent <davidn@blaze.net.au> |
| 52 | * |
| 53 | * New-busification by Brian Somers <brian@Awfulhak.org> |
| 54 | * |
| 55 | * There was a copyright confusion: I thought that having read the |
| 56 | * GLPed drivers makes me mentally contaminated but in fact it does |
| 57 | * not. Since the Linux driver by Troy De Jongh <troyd@digibd.com> or |
| 58 | * <troyd@skypoint.com> was used only to learn the Digi's interface, |
| 59 | * I've returned this driver to a BSD-style license. I tried to contact |
| 60 | * all the contributors and those who replied agreed with license |
| 61 | * change. If you did any contribution when the driver was GPLed and do |
| 62 | * not agree with the BSD-style re-licensing please contact me. |
| 63 | * -SB |
| 64 | */ |
| 65 | |
| 66 | /* How often to run dgmpoll */ |
| 67 | #define POLLSPERSEC 25 |
| 68 | |
| 69 | /* How many charactes can we write to input tty rawq */ |
| 70 | #define DGB_IBUFSIZE (TTYHOG - 100) |
| 71 | |
| 72 | /* the overall number of ports controlled by this driver */ |
| 73 | |
| 74 | #include <sys/param.h> |
| 75 | |
| 76 | #include <sys/systm.h> |
| 77 | #include <sys/proc.h> |
| 78 | #include <sys/conf.h> |
| 79 | #include <sys/dkstat.h> |
| 80 | #include <sys/fcntl.h> |
| 81 | #include <sys/kernel.h> |
| 82 | #include <sys/sysctl.h> |
| 83 | #include <sys/malloc.h> |
| 84 | #include <sys/sysctl.h> |
| 85 | #include <sys/tty.h> |
| 86 | #include <sys/bus.h> |
| 87 | #include <sys/kobj.h> |
| 88 | #include <sys/bus.h> |
| 89 | #include <machine/bus.h> |
| 90 | #include <sys/rman.h> |
| 91 | #include <machine/resource.h> |
| 92 | |
| 93 | #include <machine/clock.h> |
| 94 | |
| 95 | #include <vm/vm.h> |
| 96 | #include <vm/pmap.h> |
| 97 | |
| 98 | #include <dev/dgb/dgmfep.h> |
| 99 | #include <dev/dgb/dgmbios.h> |
| 100 | #include <dev/dgb/dgmreg.h> |
| 101 | |
| 102 | #define CALLOUT_MASK 0x40000 |
| 103 | #define CONTROL_MASK 0xC0 |
| 104 | #define CONTROL_INIT_STATE 0x40 |
| 105 | #define CONTROL_LOCK_STATE 0x80 |
| 106 | #define UNIT_MASK 0x30000 |
| 107 | #define PORT_MASK 0x3F |
| 108 | #define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev))) |
| 109 | #define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK) |
| 110 | #define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK) >> 16) |
| 111 | #define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK) |
| 112 | #define IO_SIZE 0x04 |
| 113 | #define MEM_SIZE 0x8000 |
| 114 | |
| 115 | struct dgm_softc; |
| 116 | |
| 117 | /* digiboard port structure */ |
| 118 | struct dgm_p { |
| 119 | unsigned enabled : 1; |
| 120 | |
| 121 | struct dgm_softc *sc; /* parent softc */ |
| 122 | u_char pnum; /* port number */ |
| 123 | u_char omodem; /* FEP output modem status */ |
| 124 | u_char imodem; /* FEP input modem status */ |
| 125 | u_char modemfake; /* Modem values to be forced */ |
| 126 | u_char modem; /* Force values */ |
| 127 | u_char hflow; |
| 128 | u_char dsr; |
| 129 | u_char dcd; |
| 130 | u_char stopc; |
| 131 | u_char startc; |
| 132 | u_char stopca; |
| 133 | u_char startca; |
| 134 | u_char fepstopc; |
| 135 | u_char fepstartc; |
| 136 | u_char fepstopca; |
| 137 | u_char fepstartca; |
| 138 | u_char txwin; |
| 139 | u_char rxwin; |
| 140 | ushort fepiflag; |
| 141 | ushort fepcflag; |
| 142 | ushort fepoflag; |
| 143 | ushort txbufhead; |
| 144 | ushort txbufsize; |
| 145 | ushort rxbufhead; |
| 146 | ushort rxbufsize; |
| 147 | int close_delay; |
| 148 | u_char *txptr; |
| 149 | u_char *rxptr; |
| 150 | volatile struct board_chan *brdchan; |
| 151 | struct tty *tty; |
| 152 | |
| 153 | u_char active_out; /* nonzero if the callout device is open */ |
| 154 | u_int wopeners; /* # processes waiting for DCD in open() */ |
| 155 | |
| 156 | /* Initial state. */ |
| 157 | struct termios it_in; /* should be in struct tty */ |
| 158 | struct termios it_out; |
| 159 | |
| 160 | /* Lock state. */ |
| 161 | struct termios lt_in; /* should be in struct tty */ |
| 162 | struct termios lt_out; |
| 163 | |
| 164 | unsigned do_timestamp : 1; |
| 165 | unsigned do_dcd_timestamp : 1; |
| 166 | struct timeval timestamp; |
| 167 | struct timeval dcd_timestamp; |
| 168 | |
| 169 | /* flags of state, are used in sleep() too */ |
| 170 | u_char closing; /* port is being closed now */ |
| 171 | u_char draining; /* port is being drained now */ |
| 172 | u_char used; /* port is being used now */ |
| 173 | u_char mustdrain; /* data must be waited to drain in dgmparam() */ |
| 174 | }; |
| 175 | |
| 176 | /* Digiboard per-board structure */ |
| 177 | struct dgm_softc { |
| 178 | /* struct board_info */ |
| 179 | unsigned enabled : 1; |
| 180 | u_char unit; /* unit number */ |
| 181 | u_char type; /* type of card: PCXE, PCXI, PCXEVE */ |
| 182 | u_char altpin; /* do we need alternate pin setting ? */ |
| 183 | int numports; /* number of ports on card */ |
| 184 | u_long port; /* I/O port */ |
| 185 | u_char *vmem; /* virtual memory address */ |
| 186 | u_long pmem; /* physical memory address */ |
| 187 | int mem_seg; /* internal memory segment */ |
| 188 | struct dgm_p *ports; /* ptr to array of port descriptors */ |
| 189 | struct tty *ttys; /* ptr to array of TTY structures */ |
| 190 | volatile struct global_data *mailbox; |
| 191 | struct resource *io_res; |
| 192 | struct resource *mem_res; |
| 193 | int iorid; |
| 194 | int mrid; |
| 195 | struct callout_handle toh; /* poll timeout handle */ |
| 196 | }; |
| 197 | |
| 198 | static void dgmpoll(void *); |
| 199 | static int dgmprobe(device_t); |
| 200 | static int dgmattach(device_t); |
| 201 | static int dgmdetach(device_t); |
| 202 | static int dgmshutdown(device_t); |
| 203 | static void fepcmd(struct dgm_p *, unsigned, unsigned, unsigned, unsigned, |
| 204 | unsigned); |
| 205 | static void dgmstart(struct tty *); |
| 206 | static void dgmstop(struct tty *, int); |
| 207 | static int dgmparam(struct tty *, struct termios *); |
| 208 | static void dgmhardclose(struct dgm_p *); |
| 209 | static void dgm_drain_or_flush(struct dgm_p *); |
| 210 | static int dgmdrain(struct dgm_p *); |
| 211 | static void dgm_pause(void *); |
| 212 | static void wakeflush(void *); |
| 213 | static void disc_optim(struct tty *, struct termios *); |
| 214 | |
| 215 | static d_open_t dgmopen; |
| 216 | static d_close_t dgmclose; |
| 217 | static d_ioctl_t dgmioctl; |
| 218 | |
| 219 | static device_method_t dgmmethods[] = { |
| 220 | /* Device interface */ |
| 221 | DEVMETHOD(device_probe, dgmprobe), |
| 222 | DEVMETHOD(device_attach, dgmattach), |
| 223 | DEVMETHOD(device_detach, dgmdetach), |
| 224 | DEVMETHOD(device_shutdown, dgmshutdown), |
| 225 | { 0, 0 } |
| 226 | }; |
| 227 | |
| 228 | static driver_t dgmdriver = { |
| 229 | "dgm", |
| 230 | dgmmethods, |
| 231 | sizeof (struct dgm_softc), |
| 232 | }; |
| 233 | |
| 234 | static devclass_t dgmdevclass; |
| 235 | |
| 236 | #define CDEV_MAJOR 101 |
| 237 | static struct cdevsw dgm_cdevsw = { |
| 238 | /* open */ dgmopen, |
| 239 | /* close */ dgmclose, |
| 240 | /* read */ ttyread, |
| 241 | /* write */ ttywrite, |
| 242 | /* ioctl */ dgmioctl, |
| 243 | /* poll */ ttypoll, |
| 244 | /* mmap */ nommap, |
| 245 | /* strategy */ nostrategy, |
| 246 | /* name */ "dgm", |
| 247 | /* maj */ CDEV_MAJOR, |
| 248 | /* dump */ nodump, |
| 249 | /* psize */ nopsize, |
| 250 | /* flags */ D_TTY | D_KQFILTER, |
| 251 | /* bmaj */ -1, |
| 252 | /* kqfilter */ ttykqfilter, |
| 253 | }; |
| 254 | |
| 255 | static int |
| 256 | dgmmodhandler(module_t mod, int event, void *arg) |
| 257 | { |
| 258 | int res = 0; |
| 259 | |
| 260 | switch (event) { |
| 261 | case MOD_LOAD: |
| 262 | cdevsw_add(&dgm_cdevsw); |
| 263 | break; |
| 264 | |
| 265 | case MOD_UNLOAD: |
| 266 | cdevsw_remove(&dgm_cdevsw); |
| 267 | break; |
| 268 | } |
| 269 | |
| 270 | return res; |
| 271 | } |
| 272 | |
| 273 | DRIVER_MODULE(dgm, isa, dgmdriver, dgmdevclass, dgmmodhandler, 0); |
| 274 | |
| 275 | static speed_t dgmdefaultrate = TTYDEF_SPEED; |
| 276 | |
| 277 | static struct speedtab dgmspeedtab[] = { |
| 278 | { 0, FEP_B0 }, /* old (sysV-like) Bx codes */ |
| 279 | { 50, FEP_B50 }, |
| 280 | { 75, FEP_B75 }, |
| 281 | { 110, FEP_B110 }, |
| 282 | { 134, FEP_B134 }, |
| 283 | { 150, FEP_B150 }, |
| 284 | { 200, FEP_B200 }, |
| 285 | { 300, FEP_B300 }, |
| 286 | { 600, FEP_B600 }, |
| 287 | { 1200, FEP_B1200 }, |
| 288 | { 1800, FEP_B1800 }, |
| 289 | { 2400, FEP_B2400 }, |
| 290 | { 4800, FEP_B4800 }, |
| 291 | { 9600, FEP_B9600 }, |
| 292 | { 19200, FEP_B19200 }, |
| 293 | { 38400, FEP_B38400 }, |
| 294 | { 57600, (FEP_FASTBAUD|FEP_B50) }, /* B50 & fast baud table */ |
| 295 | { 115200, (FEP_FASTBAUD|FEP_B110) }, /* B100 & fast baud table */ |
| 296 | { -1, -1 } |
| 297 | }; |
| 298 | |
| 299 | static struct dbgflagtbl { |
| 300 | tcflag_t in_mask; |
| 301 | tcflag_t in_val; |
| 302 | tcflag_t out_val; |
| 303 | } dgm_cflags[] = { |
| 304 | { PARODD, PARODD, FEP_PARODD }, |
| 305 | { PARENB, PARENB, FEP_PARENB }, |
| 306 | { CSTOPB, CSTOPB, FEP_CSTOPB }, |
| 307 | { CSIZE, CS5, FEP_CS6 }, |
| 308 | { CSIZE, CS6, FEP_CS6 }, |
| 309 | { CSIZE, CS7, FEP_CS7 }, |
| 310 | { CSIZE, CS8, FEP_CS8 }, |
| 311 | { CLOCAL, CLOCAL, FEP_CLOCAL }, |
| 312 | { (tcflag_t)-1 } |
| 313 | }, dgm_iflags[] = { |
| 314 | { IGNBRK, IGNBRK, FEP_IGNBRK }, |
| 315 | { BRKINT, BRKINT, FEP_BRKINT }, |
| 316 | { IGNPAR, IGNPAR, FEP_IGNPAR }, |
| 317 | { PARMRK, PARMRK, FEP_PARMRK }, |
| 318 | { INPCK, INPCK, FEP_INPCK }, |
| 319 | { ISTRIP, ISTRIP, FEP_ISTRIP }, |
| 320 | { IXON, IXON, FEP_IXON }, |
| 321 | { IXOFF, IXOFF, FEP_IXOFF }, |
| 322 | { IXANY, IXANY, FEP_IXANY }, |
| 323 | { (tcflag_t)-1 } |
| 324 | }, dgm_flow[] = { |
| 325 | { CRTSCTS, CRTSCTS, CTS|RTS }, |
| 326 | { CRTSCTS, CCTS_OFLOW, CTS }, |
| 327 | { CRTSCTS, CRTS_IFLOW, RTS }, |
| 328 | { (tcflag_t)-1 } |
| 329 | }; |
| 330 | |
| 331 | /* xlat bsd termios flags to dgm sys-v style */ |
| 332 | static tcflag_t |
| 333 | dgmflags(struct dbgflagtbl *tbl, tcflag_t input) |
| 334 | { |
| 335 | tcflag_t output = 0; |
| 336 | int i; |
| 337 | |
| 338 | for (i = 0; tbl[i].in_mask != (tcflag_t)-1; i++) |
| 339 | if ((input & tbl[i].in_mask) == tbl[i].in_val) |
| 340 | output |= tbl[i].out_val; |
| 341 | |
| 342 | return output; |
| 343 | } |
| 344 | |
| 345 | static int dgmdebug = 0; |
| 346 | SYSCTL_INT(_debug, OID_AUTO, dgm_debug, CTLFLAG_RW, &dgmdebug, 0, ""); |
| 347 | |
| 348 | static __inline int setwin(struct dgm_softc *, unsigned); |
| 349 | static __inline void hidewin(struct dgm_softc *); |
| 350 | static __inline void towin(struct dgm_softc *, int); |
| 351 | |
| 352 | /*Helg: to allow recursive dgm...() calls */ |
| 353 | typedef struct { |
| 354 | /* If we were called and don't want to disturb we need: */ |
| 355 | int port; /* write to this port */ |
| 356 | u_char data; /* this data on exit */ |
| 357 | /* or DATA_WINOFF to close memory window on entry */ |
| 358 | } BoardMemWinState; /* so several channels and even boards can coexist */ |
| 359 | |
| 360 | #define DATA_WINOFF 0 |
| 361 | static BoardMemWinState bmws; |
| 362 | |
| 363 | static u_long validio[] = { 0x104, 0x114, 0x124, 0x204, 0x224, 0x304, 0x324 }; |
| 364 | static u_long validmem[] = { |
| 365 | 0x80000, 0x88000, 0x90000, 0x98000, 0xa0000, 0xa8000, 0xb0000, 0xb8000, |
| 366 | 0xc0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000, 0xe8000, 0xf0000, 0xf8000, |
| 367 | 0xf0000000, 0xf1000000, 0xf2000000, 0xf3000000, 0xf4000000, 0xf5000000, |
| 368 | 0xf6000000, 0xf7000000, 0xf8000000, 0xf9000000, 0xfa000000, 0xfb000000, |
| 369 | 0xfc000000, 0xfd000000, 0xfe000000, 0xff000000 |
| 370 | }; |
| 371 | |
| 372 | /* return current memory window state and close window */ |
| 373 | static BoardMemWinState |
| 374 | bmws_get(void) |
| 375 | { |
| 376 | BoardMemWinState bmwsRet = bmws; |
| 377 | |
| 378 | if (bmws.data != DATA_WINOFF) |
| 379 | outb(bmws.port, bmws.data = DATA_WINOFF); |
| 380 | return bmwsRet; |
| 381 | } |
| 382 | |
| 383 | /* restore memory window state */ |
| 384 | static void |
| 385 | bmws_set(BoardMemWinState ws) |
| 386 | { |
| 387 | if (ws.data != bmws.data || ws.port != bmws.port) { |
| 388 | if (bmws.data != DATA_WINOFF) |
| 389 | outb(bmws.port, DATA_WINOFF); |
| 390 | if (ws.data != DATA_WINOFF) |
| 391 | outb(ws.port, ws.data); |
| 392 | bmws = ws; |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | static __inline int |
| 397 | setwin(struct dgm_softc *sc, unsigned int addr) |
| 398 | { |
| 399 | outb(bmws.port = sc->port + 1, bmws.data = FEPWIN|(addr >> 15)); |
| 400 | return (addr & 0x7FFF); |
| 401 | } |
| 402 | |
| 403 | static __inline void |
| 404 | hidewin(struct dgm_softc *sc) |
| 405 | { |
| 406 | bmws.data = 0; |
| 407 | outb(bmws.port = sc->port + 1, bmws.data); |
| 408 | } |
| 409 | |
| 410 | static __inline void |
| 411 | towin(struct dgm_softc *sc, int win) |
| 412 | { |
| 413 | outb(bmws.port = sc->port + 1, bmws.data = win); |
| 414 | } |
| 415 | |
| 416 | static int |
| 417 | dgmprobe(device_t dev) |
| 418 | { |
| 419 | struct dgm_softc *sc = device_get_softc(dev); |
| 420 | int i, v; |
| 421 | |
| 422 | sc->unit = device_get_unit(dev); |
| 423 | |
| 424 | /* Check that we've got a valid i/o address */ |
| 425 | if ((sc->port = bus_get_resource_start(dev, SYS_RES_IOPORT, 0)) == 0) |
| 426 | return (ENXIO); |
| 427 | for (i = sizeof (validio) / sizeof (validio[0]) - 1; i >= 0; i--) |
| 428 | if (sc->port == validio[i]) |
| 429 | break; |
| 430 | if (i == -1) { |
| 431 | device_printf(dev, "0x%03lx: Invalid i/o address\n", sc->port); |
| 432 | return (ENXIO); |
| 433 | } |
| 434 | |
| 435 | /* Ditto for our memory address */ |
| 436 | if ((sc->pmem = bus_get_resource_start(dev, SYS_RES_MEMORY, 0)) == 0) |
| 437 | return (ENXIO); |
| 438 | for (i = sizeof (validmem) / sizeof (validmem[0]) - 1; i >= 0; i--) |
| 439 | if (sc->pmem == validmem[i]) |
| 440 | break; |
| 441 | if (i == -1) { |
| 442 | device_printf(dev, "0x%lx: Invalid memory address\n", sc->pmem); |
| 443 | return (ENXIO); |
| 444 | } |
| 445 | if ((sc->pmem & 0xFFFFFFul) != sc->pmem) { |
| 446 | device_printf(dev, "0x%lx: Memory address not supported\n", |
| 447 | sc->pmem); |
| 448 | return (ENXIO); |
| 449 | } |
| 450 | sc->vmem = (u_char *)sc->pmem; |
| 451 | |
| 452 | DPRINT4(DB_INFO, "dgm%d: port 0x%lx mem 0x%lx\n", sc->unit, |
| 453 | sc->port, sc->pmem); |
| 454 | |
| 455 | /* Temporarily map our io ports */ |
| 456 | sc->iorid = 0; |
| 457 | sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iorid, |
| 458 | 0ul, ~0ul, IO_SIZE, RF_ACTIVE); |
| 459 | if (sc->io_res == NULL) |
| 460 | return (ENXIO); |
| 461 | |
| 462 | outb(sc->port, FEPRST); |
| 463 | sc->enabled = 0; |
| 464 | |
| 465 | for (i = 0; i < 1000; i++) { |
| 466 | DELAY(1); |
| 467 | if ((inb(sc->port) & FEPMASK) == FEPRST) { |
| 468 | sc->enabled = 1; |
| 469 | DPRINT3(DB_EXCEPT, "dgm%d: got reset after %d us\n", |
| 470 | sc->unit, i); |
| 471 | break; |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | if (!sc->enabled) { |
| 476 | DPRINT2(DB_EXCEPT, "dgm%d: failed to respond\n", sc->unit); |
| 477 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 478 | return (ENXIO); |
| 479 | } |
| 480 | |
| 481 | /* check type of card and get internal memory characteristics */ |
| 482 | |
| 483 | v = inb(sc->port); |
| 484 | |
| 485 | if (!(v & 0x1)) { |
| 486 | int second; |
| 487 | |
| 488 | outb(sc->port, 1); |
| 489 | second = inb(sc->port); |
| 490 | printf("dgm%d: PC/Xem (type %d, %d)\n", sc->unit, v, second); |
| 491 | } else |
| 492 | printf("dgm%d: PC/Xem (type %d)\n", sc->unit, v); |
| 493 | |
| 494 | sc->type = PCXEM; |
| 495 | sc->mem_seg = 0x8000; |
| 496 | |
| 497 | /* Temporarily map our memory too */ |
| 498 | sc->mrid = 0; |
| 499 | sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mrid, |
| 500 | 0ul, ~0ul, MEM_SIZE, RF_ALLOCATED); |
| 501 | if (sc->mem_res == NULL) { |
| 502 | device_printf(dev, "0x%lx: Memory range is in use\n", sc->pmem); |
| 503 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 504 | return (ENXIO); |
| 505 | } |
| 506 | |
| 507 | outb(sc->port, FEPCLR); /* drop RESET */ |
| 508 | hidewin(sc); /* Helg: to set initial bmws state */ |
| 509 | |
| 510 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 511 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 512 | |
| 513 | bus_set_resource(dev, SYS_RES_IOPORT, 0, sc->port, IO_SIZE); |
| 514 | bus_set_resource(dev, SYS_RES_MEMORY, 0, sc->pmem, MEM_SIZE); |
| 515 | |
| 516 | DPRINT2(DB_INFO, "dgm%d: Probe returns 0\n", sc->unit); |
| 517 | |
| 518 | return (0); |
| 519 | } |
| 520 | |
| 521 | static int |
| 522 | dgmattach(device_t dev) |
| 523 | { |
| 524 | struct dgm_softc *sc = device_get_softc(dev); |
| 525 | int i, t; |
| 526 | u_char *mem; |
| 527 | u_char *ptr; |
| 528 | int addr; |
| 529 | struct dgm_p *port; |
| 530 | volatile struct board_chan *bc; |
| 531 | int shrinkmem; |
| 532 | int lowwater; |
| 533 | u_long msize, iosize; |
| 534 | |
| 535 | DPRINT2(DB_INFO, "dbg%d: attaching\n", device_get_unit(dev)); |
| 536 | |
| 537 | sc->unit = device_get_unit(dev); |
| 538 | bus_get_resource(dev, SYS_RES_IOPORT, 0, &sc->port, &iosize); |
| 539 | bus_get_resource(dev, SYS_RES_MEMORY, 0, &sc->pmem, &msize); |
| 540 | sc->altpin = !!(device_get_flags(dev) & DGBFLAG_ALTPIN); |
| 541 | sc->type = PCXEM; |
| 542 | sc->mem_seg = 0x8000; |
| 543 | sc->enabled = 1; |
| 544 | sc->type = PCXEM; |
| 545 | sc->mem_seg = 0x8000; |
| 546 | |
| 547 | /* Allocate resources (should have been verified in dgmprobe()) */ |
| 548 | sc->iorid = 0; |
| 549 | sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iorid, |
| 550 | 0ul, ~0ul, iosize, RF_ACTIVE); |
| 551 | if (sc->io_res == NULL) |
| 552 | return (ENXIO); |
| 553 | sc->mrid = 0; |
| 554 | sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mrid, |
| 555 | 0ul, ~0ul, msize, RF_ACTIVE); |
| 556 | if (sc->mem_res == NULL) { |
| 557 | device_printf(dev, "0x%lx: Memory range is in use\n", sc->pmem); |
| 558 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 559 | return (ENXIO); |
| 560 | } |
| 561 | |
| 562 | /* map memory */ |
| 563 | mem = sc->vmem = pmap_mapdev(sc->pmem, msize); |
| 564 | |
| 565 | DPRINT3(DB_INFO, "dgm%d: internal memory segment 0x%x\n", sc->unit, |
| 566 | sc->mem_seg); |
| 567 | |
| 568 | outb(sc->port, FEPRST); |
| 569 | DELAY(1); |
| 570 | |
| 571 | for (i = 0; (inb(sc->port) & FEPMASK) != FEPRST; i++) { |
| 572 | if (i > 10000) { |
| 573 | device_printf(dev, "1st reset failed\n"); |
| 574 | sc->enabled = 0; |
| 575 | hidewin(sc); |
| 576 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 577 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 578 | return (ENXIO); |
| 579 | } |
| 580 | DELAY(1); |
| 581 | } |
| 582 | |
| 583 | DPRINT3(DB_INFO, "dgm%d: got reset after %d us\n", sc->unit, i); |
| 584 | |
| 585 | t = sc->pmem >> 8; /* disable windowing */ |
| 586 | outb(sc->port + 2, t & 0xFF); |
| 587 | outb(sc->port + 3, t >> 8); |
| 588 | |
| 589 | mem = sc->vmem; |
| 590 | |
| 591 | /* very short memory test */ |
| 592 | DPRINT2(DB_INFO, "dbg%d: short memory test\n", sc->unit); |
| 593 | |
| 594 | addr = setwin(sc, BOTWIN); |
| 595 | *(u_long *)(mem + addr) = 0xA55A3CC3; |
| 596 | if (*(u_long *)(mem + addr) != 0xA55A3CC3) { |
| 597 | device_printf(dev, "1st memory test failed\n"); |
| 598 | sc->enabled = 0; |
| 599 | hidewin(sc); |
| 600 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 601 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 602 | return (ENXIO); |
| 603 | } |
| 604 | |
| 605 | DPRINT2(DB_INFO, "dbg%d: 1st memory test ok\n", sc->unit); |
| 606 | |
| 607 | addr = setwin(sc, TOPWIN); |
| 608 | *(u_long *)(mem + addr) = 0x5AA5C33C; |
| 609 | if (*(u_long *)(mem + addr) != 0x5AA5C33C) { |
| 610 | device_printf(dev, "2nd memory test failed\n"); |
| 611 | sc->enabled = 0; |
| 612 | hidewin(sc); |
| 613 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 614 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 615 | return (ENXIO); |
| 616 | } |
| 617 | |
| 618 | DPRINT2(DB_INFO, "dbg%d: 2nd memory test ok\n", sc->unit); |
| 619 | |
| 620 | addr = setwin(sc, BIOSCODE + ((0xF000 - sc->mem_seg) << 4)); |
| 621 | *(u_long *)(mem + addr) = 0x5AA5C33C; |
| 622 | if (*(u_long *)(mem + addr) != 0x5AA5C33C) |
| 623 | device_printf(dev, "3rd (BIOS) memory test failed\n"); |
| 624 | |
| 625 | DPRINT2(DB_INFO, "dbg%d: 3rd memory test ok\n", sc->unit); |
| 626 | |
| 627 | addr = setwin(sc, MISCGLOBAL); |
| 628 | for (i = 0; i < 16; i++) |
| 629 | mem[addr + i] = 0; |
| 630 | |
| 631 | addr = setwin(sc, BIOSOFFSET); |
| 632 | ptr = mem + addr; |
| 633 | for (i = 0; ptr < mem + msize; i++) |
| 634 | *ptr++ = pcem_bios[i]; |
| 635 | |
| 636 | ptr = mem + BIOSOFFSET; |
| 637 | for (i = 0; ptr < mem + msize; i++) { |
| 638 | if (*ptr++ != pcem_bios[i]) { |
| 639 | printf("Low BIOS load failed\n"); |
| 640 | sc->enabled = 0; |
| 641 | hidewin(sc); |
| 642 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 643 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 644 | return (ENXIO); |
| 645 | } |
| 646 | } |
| 647 | DPRINT2(DB_INFO, "dbg%d: pcem_bios seg 1 loaded\n", sc->unit); |
| 648 | |
| 649 | addr = setwin(sc, msize); |
| 650 | ptr = mem + addr; |
| 651 | for (;i < pcem_nbios; i++) |
| 652 | *ptr++ = pcem_bios[i]; |
| 653 | |
| 654 | ptr = mem; |
| 655 | for (i = msize - BIOSOFFSET; i < pcem_nbios; i++) { |
| 656 | if (*ptr++ != pcem_bios[i]) { |
| 657 | printf("High BIOS load failed\n"); |
| 658 | sc->enabled = 0; |
| 659 | hidewin(sc); |
| 660 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 661 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 662 | return (ENXIO); |
| 663 | } |
| 664 | } |
| 665 | DPRINT2(DB_INFO, "dbg%d: pcem_bios seg 2 loaded\n", sc->unit); |
| 666 | device_printf(dev, "DigiBIOS loaded, initializing"); |
| 667 | |
| 668 | addr = setwin(sc, 0); |
| 669 | |
| 670 | *(u_int *)(mem + addr) = 0x0bf00401; |
| 671 | *(u_int *)(mem + addr + 4) = 0; |
| 672 | *(ushort *)(mem + addr + 0xc00) = 0; |
| 673 | outb(sc->port, 0); |
| 674 | |
| 675 | for (i = 0; *(u_char *)(mem + addr + 0xc00) != 0x47; i++) { |
| 676 | DELAY(10000); |
| 677 | if (i > 3000) { |
| 678 | printf("\nBIOS initialize failed(1)\n"); |
| 679 | sc->enabled = 0; |
| 680 | hidewin(sc); |
| 681 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 682 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 683 | return (ENXIO); |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | if (*(u_char *)(mem + addr + 0xc01) != 0x44) { |
| 688 | printf("\nBIOS initialize failed(2)\n"); |
| 689 | sc->enabled = 0; |
| 690 | hidewin(sc); |
| 691 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 692 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 693 | return (ENXIO); |
| 694 | } |
| 695 | printf(", DigiBIOS running\n"); |
| 696 | |
| 697 | DELAY(10000); |
| 698 | |
| 699 | addr = setwin(sc, BIOSOFFSET); |
| 700 | ptr = mem + addr; |
| 701 | for (i = 0; i < pcem_ncook; i++) |
| 702 | *ptr++ = pcem_cook[i]; |
| 703 | |
| 704 | ptr = mem + BIOSOFFSET; |
| 705 | for (i = 0; i < pcem_ncook; i++) { |
| 706 | if (*ptr++ != pcem_cook[i]) { |
| 707 | printf("FEP/OS load failed\n"); |
| 708 | sc->enabled = 0; |
| 709 | hidewin(sc); |
| 710 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 711 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 712 | return (ENXIO); |
| 713 | } |
| 714 | } |
| 715 | device_printf(dev, "FEP/OS loaded, initializing"); |
| 716 | |
| 717 | addr = setwin(sc, 0); |
| 718 | *(ushort *)(mem + addr + 0xd20) = 0; |
| 719 | *(u_int *)(mem + addr + 0xc34) = 0xbfc01004; |
| 720 | *(u_int *)(mem + addr + 0xc30) = 0x3L; |
| 721 | outb(sc->port, 0); |
| 722 | |
| 723 | for (i = 0; *(u_char *)(mem + addr + 0xd20) != 'O'; i++) { |
| 724 | DELAY(10000); |
| 725 | if (i > 3000) { |
| 726 | printf("\nFEP/OS initialize failed(1)\n"); |
| 727 | sc->enabled = 0; |
| 728 | hidewin(sc); |
| 729 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 730 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 731 | return (ENXIO); |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | if (*(u_char *)(mem + addr + 0xd21) != 'S') { |
| 736 | printf("\nFEP/OS initialize failed(2)\n"); |
| 737 | sc->enabled = 0; |
| 738 | hidewin(sc); |
| 739 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 740 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 741 | return (ENXIO); |
| 742 | } |
| 743 | printf(", FEP/OS running\n"); |
| 744 | |
| 745 | sc->numports = *(ushort *)(mem + setwin(sc, NPORT)); |
| 746 | device_printf(dev, "%d ports attached\n", sc->numports); |
| 747 | |
| 748 | if (sc->numports > MAX_DGM_PORTS) { |
| 749 | printf("dgm%d: too many ports\n", sc->unit); |
| 750 | sc->enabled = 0; |
| 751 | hidewin(sc); |
| 752 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 753 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 754 | return (ENXIO); |
| 755 | } |
| 756 | |
| 757 | MALLOC(sc->ports, struct dgm_p *, sizeof (*sc->ports) * sc->numports, |
| 758 | M_TTYS, M_WAITOK|M_ZERO); |
| 759 | MALLOC(sc->ttys, struct tty *, sizeof (*sc->ttys) * sc->numports, |
| 760 | M_TTYS, M_WAITOK|M_ZERO); |
| 761 | |
| 762 | DPRINT3(DB_INFO, "dgm%d: enable %d ports\n", sc->unit, sc->numports); |
| 763 | for (i = 0; i < sc->numports; i++) |
| 764 | sc->ports[i].enabled = 1; |
| 765 | |
| 766 | /* We should now init per-port structures */ |
| 767 | setwin(sc, 0); |
| 768 | bc = (volatile struct board_chan *)(mem + CHANSTRUCT); |
| 769 | sc->mailbox = (volatile struct global_data *)(mem + FEP_GLOBAL); |
| 770 | |
| 771 | if (sc->numports < 3) |
| 772 | shrinkmem = 1; |
| 773 | else |
| 774 | shrinkmem = 0; |
| 775 | |
| 776 | for (i = 0; i < sc->numports; i++, bc++) { |
| 777 | DPRINT3(DB_INFO, "dgm%d: Set up port %d\n", sc->unit, i); |
| 778 | port = &sc->ports[i]; |
| 779 | port->sc = sc; |
| 780 | |
| 781 | port->tty = &sc->ttys[i]; |
| 782 | |
| 783 | port->brdchan = bc; |
| 784 | |
| 785 | port->dcd = CD; |
| 786 | port->dsr = DSR; |
| 787 | port->pnum = i; |
| 788 | |
| 789 | DPRINT3(DB_INFO, "dgm%d port %d: shrinkmem ?\n", sc->unit, i); |
| 790 | if (shrinkmem) { |
| 791 | DPRINT2(DB_INFO, "dgm%d: shrinking memory\n", sc->unit); |
| 792 | fepcmd(port, SETBUFFER, 32, 0, 0, 0); |
| 793 | shrinkmem = 0; |
| 794 | } |
| 795 | |
| 796 | DPRINT3(DB_INFO, "dgm%d port %d: assign ptrs\n", sc->unit, i); |
| 797 | port->txptr = mem + ((bc->tseg << 4) & 0x7FFF); |
| 798 | port->rxptr = mem + ((bc->rseg << 4) & 0x7FFF); |
| 799 | port->txwin = FEPWIN | (bc->tseg >> 11); |
| 800 | port->rxwin = FEPWIN | (bc->rseg >> 11); |
| 801 | |
| 802 | port->txbufhead = 0; |
| 803 | port->rxbufhead = 0; |
| 804 | port->txbufsize = bc->tmax + 1; |
| 805 | port->rxbufsize = bc->rmax + 1; |
| 806 | |
| 807 | lowwater = (port->txbufsize >= 2000) ? |
| 808 | 1024 : (port->txbufsize / 2); |
| 809 | |
| 810 | setwin(sc, 0); |
| 811 | DPRINT4(DB_INFO, "dgm%d port %d: fepcmd STXLWATER %d\n", |
| 812 | sc->unit, i, lowwater); |
| 813 | fepcmd(port, STXLWATER, lowwater, 0, 10, 0); |
| 814 | DPRINT4(DB_INFO, "dgm%d port %d: fepcmd SRXLWATER %d\n", |
| 815 | sc->unit, i, port->rxbufsize / 4); |
| 816 | fepcmd(port, SRXLWATER, port->rxbufsize / 4, 0, 10, 0); |
| 817 | DPRINT4(DB_INFO, "dgm%d port %d: fepcmd SRXHWATER %d\n", |
| 818 | sc->unit, i, 3 * port->rxbufsize / 4); |
| 819 | fepcmd(port, SRXHWATER, 3 * port->rxbufsize / 4, 0, 10, 0); |
| 820 | |
| 821 | bc->edelay = 100; |
| 822 | bc->idata = 1; |
| 823 | |
| 824 | port->startc = bc->startc; |
| 825 | port->startca = bc->startca; |
| 826 | port->stopc = bc->stopc; |
| 827 | port->stopca = bc->stopca; |
| 828 | |
| 829 | /* port->close_delay = 50; */ |
| 830 | port->close_delay = 3 * hz; |
| 831 | port->do_timestamp = 0; |
| 832 | port->do_dcd_timestamp = 0; |
| 833 | |
| 834 | DPRINT3(DB_INFO, "dgm%d port %d: setup flags\n", sc->unit, i); |
| 835 | /* |
| 836 | * We don't use all the flags from <sys/ttydefaults.h> since |
| 837 | * they are only relevant for logins. It's important to have |
| 838 | * echo off initially so that the line doesn't start |
| 839 | * blathering before the echo flag can be turned off. |
| 840 | */ |
| 841 | port->it_in.c_iflag = TTYDEF_IFLAG; |
| 842 | port->it_in.c_oflag = TTYDEF_OFLAG; |
| 843 | port->it_in.c_cflag = TTYDEF_CFLAG; |
| 844 | port->it_in.c_lflag = TTYDEF_LFLAG; |
| 845 | termioschars(&port->it_in); |
| 846 | port->it_in.c_ispeed = port->it_in.c_ospeed = dgmdefaultrate; |
| 847 | port->it_out = port->it_in; |
| 848 | |
| 849 | DPRINT3(DB_INFO, "dgm%d port %d: make devices\n", sc->unit, i); |
| 850 | make_dev(&dgm_cdevsw, (sc->unit*65536) + i, UID_ROOT, |
| 851 | GID_WHEEL, 0600, "ttyM%d%x", sc->unit, i + 0xa0); |
| 852 | make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 64, UID_ROOT, |
| 853 | GID_WHEEL, 0600, "ttyiM%d%x", sc->unit, i + 0xa0); |
| 854 | make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 128, UID_ROOT, |
| 855 | GID_WHEEL, 0600, "ttylM%d%x", sc->unit, i + 0xa0); |
| 856 | make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262144, UID_UUCP, |
| 857 | GID_DIALER, 0660, "cuaM%d%x", sc->unit, i + 0xa0); |
| 858 | make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262208, UID_UUCP, |
| 859 | GID_DIALER, 0660, "cuaiM%d%x", sc->unit, i + 0xa0); |
| 860 | make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262272, UID_UUCP, |
| 861 | GID_DIALER, 0660, "cualM%d%x", sc->unit, i + 0xa0); |
| 862 | } |
| 863 | |
| 864 | DPRINT3(DB_INFO, "dgm%d: %d device nodes created\n", sc->unit, sc->numports); |
| 865 | |
| 866 | hidewin(sc); |
| 867 | |
| 868 | /* start the polling function */ |
| 869 | sc->toh = timeout(dgmpoll, (void *)(int)sc->unit, hz / POLLSPERSEC); |
| 870 | |
| 871 | DPRINT2(DB_INFO, "dgm%d: poll thread started\n", sc->unit); |
| 872 | |
| 873 | return (0); |
| 874 | } |
| 875 | |
| 876 | static int |
| 877 | dgmdetach(device_t dev) |
| 878 | { |
| 879 | struct dgm_softc *sc = device_get_softc(dev); |
| 880 | int i; |
| 881 | |
| 882 | for (i = 0; i < sc->numports; i++) |
| 883 | if (sc->ttys[i].t_state & TS_ISOPEN) |
| 884 | return (EBUSY); |
| 885 | |
| 886 | DPRINT2(DB_INFO, "dgm%d: detach\n", sc->unit); |
| 887 | |
| 888 | for (i = 0; i < sc->numports; i++) { |
| 889 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i)); |
| 890 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 64)); |
| 891 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 128)); |
| 892 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262144)); |
| 893 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262208)); |
| 894 | destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262272)); |
| 895 | } |
| 896 | |
| 897 | untimeout(dgmpoll, (void *)(int)sc->unit, sc->toh); |
| 898 | callout_handle_init(&sc->toh); |
| 899 | |
| 900 | bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); |
| 901 | bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); |
| 902 | |
| 903 | FREE(sc->ports, M_TTYS); |
| 904 | FREE(sc->ttys, M_TTYS); |
| 905 | |
| 906 | return (0); |
| 907 | } |
| 908 | |
| 909 | int |
| 910 | dgmshutdown(device_t dev) |
| 911 | { |
| 912 | #ifdef DEBUG |
| 913 | struct dgm_softc *sc = device_get_softc(dev); |
| 914 | |
| 915 | DPRINT2(DB_INFO, "dgm%d: shutdown\n", sc->unit); |
| 916 | #endif |
| 917 | |
| 918 | return 0; |
| 919 | } |
| 920 | |
| 921 | /* ARGSUSED */ |
| 922 | static int |
| 923 | dgmopen(dev_t dev, int flag, int mode, struct thread *td) |
| 924 | { |
| 925 | struct dgm_softc *sc; |
| 926 | struct tty *tp; |
| 927 | int unit; |
| 928 | int mynor; |
| 929 | int pnum; |
| 930 | struct dgm_p *port; |
| 931 | int s, cs; |
| 932 | int error; |
| 933 | volatile struct board_chan *bc; |
| 934 | |
| 935 | error = 0; |
| 936 | mynor = minor(dev); |
| 937 | unit = MINOR_TO_UNIT(mynor); |
| 938 | pnum = MINOR_TO_PORT(mynor); |
| 939 | |
| 940 | sc = devclass_get_softc(dgmdevclass, unit); |
| 941 | if (sc == NULL) { |
| 942 | DPRINT2(DB_EXCEPT, "dgm%d: try to open a nonexisting card\n", |
| 943 | unit); |
| 944 | return ENXIO; |
| 945 | } |
| 946 | |
| 947 | DPRINT2(DB_INFO, "dgm%d: open\n", sc->unit); |
| 948 | |
| 949 | if (!sc->enabled) { |
| 950 | DPRINT2(DB_EXCEPT, "dgm%d: try to open a disabled card\n", |
| 951 | unit); |
| 952 | return ENXIO; |
| 953 | } |
| 954 | |
| 955 | if (pnum >= sc->numports) { |
| 956 | DPRINT3(DB_EXCEPT, "dgm%d: try to open non-existing port %d\n", |
| 957 | unit, pnum); |
| 958 | return ENXIO; |
| 959 | } |
| 960 | |
| 961 | if (mynor & CONTROL_MASK) |
| 962 | return 0; |
| 963 | |
| 964 | tp = &sc->ttys[pnum]; |
| 965 | dev->si_tty = tp; |
| 966 | port = &sc->ports[pnum]; |
| 967 | bc = port->brdchan; |
| 968 | |
| 969 | open_top: |
| 970 | s = spltty(); |
| 971 | |
| 972 | while (port->closing) { |
| 973 | error = tsleep(&port->closing, TTOPRI|PCATCH, "dgocl", 0); |
| 974 | |
| 975 | if (error) { |
| 976 | DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgocl)" |
| 977 | " error = %d\n", unit, pnum, error); |
| 978 | goto out; |
| 979 | } |
| 980 | } |
| 981 | |
| 982 | if (tp->t_state & TS_ISOPEN) { |
| 983 | /* |
| 984 | * The device is open, so everything has been initialized. |
| 985 | * Handle conflicts. |
| 986 | */ |
| 987 | if (mynor & CALLOUT_MASK) { |
| 988 | if (!port->active_out) { |
| 989 | error = EBUSY; |
| 990 | DPRINT4(DB_OPEN, "dgm%d: port%d:" |
| 991 | " BUSY error = %d\n", unit, pnum, error); |
| 992 | goto out; |
| 993 | } |
| 994 | } else if (port->active_out) { |
| 995 | if (flag & O_NONBLOCK) { |
| 996 | error = EBUSY; |
| 997 | DPRINT4(DB_OPEN, "dgm%d: port%d:" |
| 998 | " BUSY error = %d\n", unit, pnum, error); |
| 999 | goto out; |
| 1000 | } |
| 1001 | error = tsleep(&port->active_out, |
| 1002 | TTIPRI | PCATCH, "dgmi", 0); |
| 1003 | if (error != 0) { |
| 1004 | DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgmi)" |
| 1005 | " error = %d\n", unit, pnum, error); |
| 1006 | goto out; |
| 1007 | } |
| 1008 | splx(s); |
| 1009 | goto open_top; |
| 1010 | } |
| 1011 | if (tp->t_state & TS_XCLUDE && suser(td)) { |
| 1012 | error = EBUSY; |
| 1013 | goto out; |
| 1014 | } |
| 1015 | } else { |
| 1016 | /* |
| 1017 | * The device isn't open, so there are no conflicts. |
| 1018 | * Initialize it. Initialization is done twice in many |
| 1019 | * cases: to preempt sleeping callin opens if we are |
| 1020 | * callout, and to complete a callin open after DCD rises. |
| 1021 | */ |
| 1022 | tp->t_oproc = dgmstart; |
| 1023 | tp->t_param = dgmparam; |
| 1024 | tp->t_stop = dgmstop; |
| 1025 | tp->t_dev = dev; |
| 1026 | tp->t_termios= (mynor & CALLOUT_MASK) ? |
| 1027 | port->it_out : |
| 1028 | port->it_in; |
| 1029 | |
| 1030 | cs = splclock(); |
| 1031 | setwin(sc, 0); |
| 1032 | port->imodem = bc->mstat; |
| 1033 | bc->rout = bc->rin; /* clear input queue */ |
| 1034 | bc->idata = 1; |
| 1035 | #ifdef PRINT_BUFSIZE |
| 1036 | printf("dgm buffers tx = %x:%x rx = %x:%x\n", |
| 1037 | bc->tseg, bc->tmax, bc->rseg, bc->rmax); |
| 1038 | #endif |
| 1039 | |
| 1040 | hidewin(sc); |
| 1041 | splx(cs); |
| 1042 | |
| 1043 | port->wopeners++; |
| 1044 | error = dgmparam(tp, &tp->t_termios); |
| 1045 | port->wopeners--; |
| 1046 | |
| 1047 | if (error != 0) { |
| 1048 | DPRINT4(DB_OPEN, "dgm%d: port%d: dgmparam error = %d\n", |
| 1049 | unit, pnum, error); |
| 1050 | goto out; |
| 1051 | } |
| 1052 | |
| 1053 | /* handle fake DCD for callout devices */ |
| 1054 | /* and initial DCD */ |
| 1055 | |
| 1056 | if ((port->imodem & port->dcd) || mynor & CALLOUT_MASK) |
| 1057 | linesw[tp->t_line].l_modem(tp, 1); |
| 1058 | } |
| 1059 | |
| 1060 | /* |
| 1061 | * Wait for DCD if necessary. |
| 1062 | */ |
| 1063 | if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) |
| 1064 | && !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) { |
| 1065 | ++port->wopeners; |
| 1066 | error = tsleep(TSA_CARR_ON(tp), TTIPRI | PCATCH, "dgdcd", 0); |
| 1067 | --port->wopeners; |
| 1068 | if (error != 0) { |
| 1069 | DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgdcd)" |
| 1070 | " error = %d\n", unit, pnum, error); |
| 1071 | goto out; |
| 1072 | } |
| 1073 | splx(s); |
| 1074 | goto open_top; |
| 1075 | } |
| 1076 | error = linesw[tp->t_line].l_open(dev, tp); |
| 1077 | disc_optim(tp, &tp->t_termios); |
| 1078 | DPRINT4(DB_OPEN, "dgm%d: port%d: l_open error = %d\n", |
| 1079 | unit, pnum, error); |
| 1080 | |
| 1081 | if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK) |
| 1082 | port->active_out = 1; |
| 1083 | |
| 1084 | port->used = 1; |
| 1085 | |
| 1086 | /* If any port is open (i.e. the open() call is completed for it) |
| 1087 | * the device is busy |
| 1088 | */ |
| 1089 | |
| 1090 | out: |
| 1091 | disc_optim(tp, &tp->t_termios); |
| 1092 | splx(s); |
| 1093 | |
| 1094 | if (!(tp->t_state & TS_ISOPEN) && port->wopeners == 0) |
| 1095 | dgmhardclose(port); |
| 1096 | |
| 1097 | DPRINT4(DB_OPEN, "dgm%d: port%d: open() returns %d\n", |
| 1098 | unit, pnum, error); |
| 1099 | |
| 1100 | return error; |
| 1101 | } |
| 1102 | |
| 1103 | /*ARGSUSED*/ |
| 1104 | static int |
| 1105 | dgmclose(dev_t dev, int flag, int mode, struct thread *td) |
| 1106 | { |
| 1107 | int mynor; |
| 1108 | struct tty *tp; |
| 1109 | int unit, pnum; |
| 1110 | struct dgm_softc *sc; |
| 1111 | struct dgm_p *port; |
| 1112 | int s; |
| 1113 | int i; |
| 1114 | |
| 1115 | mynor = minor(dev); |
| 1116 | if (mynor & CONTROL_MASK) |
| 1117 | return 0; |
| 1118 | unit = MINOR_TO_UNIT(mynor); |
| 1119 | pnum = MINOR_TO_PORT(mynor); |
| 1120 | |
| 1121 | sc = devclass_get_softc(dgmdevclass, unit); |
| 1122 | tp = &sc->ttys[pnum]; |
| 1123 | port = sc->ports + pnum; |
| 1124 | |
| 1125 | DPRINT3(DB_CLOSE, "dgm%d: port%d: closing\n", unit, pnum); |
| 1126 | |
| 1127 | DPRINT3(DB_CLOSE, "dgm%d: port%d: draining port\n", unit, pnum); |
| 1128 | dgm_drain_or_flush(port); |
| 1129 | |
| 1130 | s = spltty(); |
| 1131 | |
| 1132 | port->closing = 1; |
| 1133 | DPRINT3(DB_CLOSE, "dgm%d: port%d: closing line disc\n", unit, pnum); |
| 1134 | linesw[tp->t_line].l_close(tp, flag); |
| 1135 | disc_optim(tp, &tp->t_termios); |
| 1136 | |
| 1137 | DPRINT3(DB_CLOSE, "dgm%d: port%d: hard closing\n", unit, pnum); |
| 1138 | dgmhardclose(port); |
| 1139 | DPRINT3(DB_CLOSE, "dgm%d: port%d: closing tty\n", unit, pnum); |
| 1140 | ttyclose(tp); |
| 1141 | port->closing = 0; |
| 1142 | wakeup(&port->closing); |
| 1143 | port->used = 0; |
| 1144 | |
| 1145 | /* mark the card idle when all ports are closed */ |
| 1146 | |
| 1147 | for (i = 0; i < sc->numports; i++) |
| 1148 | if (sc->ports[i].used) |
| 1149 | break; |
| 1150 | |
| 1151 | splx(s); |
| 1152 | |
| 1153 | DPRINT3(DB_CLOSE, "dgm%d: port%d: closed\n", unit, pnum); |
| 1154 | |
| 1155 | wakeup(TSA_CARR_ON(tp)); |
| 1156 | wakeup(&port->active_out); |
| 1157 | port->active_out = 0; |
| 1158 | |
| 1159 | DPRINT3(DB_CLOSE, "dgm%d: port%d: close exit\n", unit, pnum); |
| 1160 | |
| 1161 | return 0; |
| 1162 | } |
| 1163 | |
| 1164 | static void |
| 1165 | dgmhardclose(struct dgm_p *port) |
| 1166 | { |
| 1167 | volatile struct board_chan *bc = port->brdchan; |
| 1168 | struct dgm_softc *sc; |
| 1169 | int cs; |
| 1170 | |
| 1171 | sc = devclass_get_softc(dgmdevclass, port->sc->unit); |
| 1172 | DPRINT2(DB_INFO, "dgm%d: dgmhardclose\n", sc->unit); |
| 1173 | cs = splclock(); |
| 1174 | port->do_timestamp = 0; |
| 1175 | setwin(sc, 0); |
| 1176 | |
| 1177 | bc->idata = 0; |
| 1178 | bc->iempty = 0; |
| 1179 | bc->ilow = 0; |
| 1180 | if (port->tty->t_cflag & HUPCL) { |
| 1181 | port->omodem &= ~(RTS|DTR); |
| 1182 | fepcmd(port, SETMODEM, 0, DTR|RTS, 0, 1); |
| 1183 | } |
| 1184 | |
| 1185 | hidewin(sc); |
| 1186 | splx(cs); |
| 1187 | |
| 1188 | timeout(dgm_pause, &port->brdchan, hz/2); |
| 1189 | tsleep(&port->brdchan, TTIPRI | PCATCH, "dgclo", 0); |
| 1190 | } |
| 1191 | |
| 1192 | static void |
| 1193 | dgm_pause(void *chan) |
| 1194 | { |
| 1195 | wakeup((caddr_t)chan); |
| 1196 | } |
| 1197 | |
| 1198 | static void |
| 1199 | dgmpoll(void *unit_c) |
| 1200 | { |
| 1201 | int unit = (int)unit_c; |
| 1202 | int pnum; |
| 1203 | struct dgm_p *port; |
| 1204 | struct dgm_softc *sc; |
| 1205 | int head, tail; |
| 1206 | u_char *eventbuf; |
| 1207 | int event, mstat, lstat; |
| 1208 | volatile struct board_chan *bc; |
| 1209 | struct tty *tp; |
| 1210 | int rhead, rtail; |
| 1211 | int whead, wtail; |
| 1212 | int size; |
| 1213 | u_char *ptr; |
| 1214 | int ocount; |
| 1215 | int ibuf_full, obuf_full; |
| 1216 | BoardMemWinState ws = bmws_get(); |
| 1217 | |
| 1218 | sc = devclass_get_softc(dgmdevclass, unit); |
| 1219 | DPRINT2(DB_INFO, "dgm%d: poll\n", sc->unit); |
| 1220 | callout_handle_init(&sc->toh); |
| 1221 | |
| 1222 | if (!sc->enabled) { |
| 1223 | printf("dgm%d: polling of disabled board stopped\n", unit); |
| 1224 | return; |
| 1225 | } |
| 1226 | |
| 1227 | setwin(sc, 0); |
| 1228 | |
| 1229 | head = sc->mailbox->ein; |
| 1230 | tail = sc->mailbox->eout; |
| 1231 | |
| 1232 | while (head != tail) { |
| 1233 | if (head >= FEP_IMAX - FEP_ISTART |
| 1234 | || tail >= FEP_IMAX - FEP_ISTART |
| 1235 | || (head|tail) & 03 ) { |
| 1236 | printf("dgm%d: event queue's head or tail is wrong!" |
| 1237 | " hd = %d, tl = %d\n", unit, head, tail); |
| 1238 | break; |
| 1239 | } |
| 1240 | |
| 1241 | eventbuf = sc->vmem + tail + FEP_ISTART; |
| 1242 | pnum = eventbuf[0]; |
| 1243 | event = eventbuf[1]; |
| 1244 | mstat = eventbuf[2]; |
| 1245 | lstat = eventbuf[3]; |
| 1246 | |
| 1247 | port = &sc->ports[pnum]; |
| 1248 | bc = port->brdchan; |
| 1249 | tp = &sc->ttys[pnum]; |
| 1250 | |
| 1251 | if (pnum >= sc->numports || !port->enabled) { |
| 1252 | printf("dgm%d: port%d: got event on nonexisting port\n", |
| 1253 | unit, pnum); |
| 1254 | } else if (port->used || port->wopeners > 0 ) { |
| 1255 | |
| 1256 | int wrapmask = port->rxbufsize - 1; |
| 1257 | |
| 1258 | if (!(event & ALL_IND)) |
| 1259 | printf("dgm%d: port%d: ? event 0x%x mstat 0x%x lstat 0x%x\n", |
| 1260 | unit, pnum, event, mstat, lstat); |
| 1261 | |
| 1262 | if (event & DATA_IND) { |
| 1263 | DPRINT3(DB_DATA, "dgm%d: port%d: DATA_IND\n", |
| 1264 | unit, pnum); |
| 1265 | |
| 1266 | rhead = bc->rin & wrapmask; |
| 1267 | rtail = bc->rout & wrapmask; |
| 1268 | |
| 1269 | if (!(tp->t_cflag & CREAD) || !port->used ) { |
| 1270 | bc->rout = rhead; |
| 1271 | goto end_of_data; |
| 1272 | } |
| 1273 | |
| 1274 | if (bc->orun) { |
| 1275 | printf("dgm%d: port%d: overrun\n", unit, pnum); |
| 1276 | bc->orun = 0; |
| 1277 | } |
| 1278 | |
| 1279 | if (!(tp->t_state & TS_ISOPEN)) |
| 1280 | goto end_of_data; |
| 1281 | |
| 1282 | for (ibuf_full = FALSE; rhead != rtail && !ibuf_full;) { |
| 1283 | DPRINT5(DB_RXDATA, "dgm%d: port%d:" |
| 1284 | " p rx head = %d tail = %d\n", unit, |
| 1285 | pnum, rhead, rtail); |
| 1286 | |
| 1287 | if (rhead > rtail) |
| 1288 | size = rhead - rtail; |
| 1289 | else |
| 1290 | size = port->rxbufsize - rtail; |
| 1291 | |
| 1292 | ptr = port->rxptr + rtail; |
| 1293 | |
| 1294 | /* Helg: */ |
| 1295 | if (tp->t_rawq.c_cc + size > DGB_IBUFSIZE ) { |
| 1296 | size = DGB_IBUFSIZE - tp->t_rawq.c_cc; |
| 1297 | DPRINT1(DB_RXDATA, "*"); |
| 1298 | ibuf_full = TRUE; |
| 1299 | } |
| 1300 | |
| 1301 | if (size) { |
| 1302 | if (tp->t_state & TS_CAN_BYPASS_L_RINT) { |
| 1303 | DPRINT1(DB_RXDATA, "!"); |
| 1304 | towin(sc, port->rxwin); |
| 1305 | tk_nin += size; |
| 1306 | tk_rawcc += size; |
| 1307 | tp->t_rawcc += size; |
| 1308 | b_to_q(ptr, size, |
| 1309 | &tp->t_rawq); |
| 1310 | setwin(sc, 0); |
| 1311 | } else { |
| 1312 | int i = size; |
| 1313 | unsigned char chr; |
| 1314 | do { |
| 1315 | towin(sc, port->rxwin); |
| 1316 | chr = *ptr++; |
| 1317 | hidewin(sc); |
| 1318 | (*linesw[tp->t_line].l_rint)(chr, tp); |
| 1319 | } while (--i > 0 ); |
| 1320 | setwin(sc, 0); |
| 1321 | } |
| 1322 | } |
| 1323 | rtail= (rtail + size) & wrapmask; |
| 1324 | bc->rout = rtail; |
| 1325 | rhead = bc->rin & wrapmask; |
| 1326 | hidewin(sc); |
| 1327 | ttwakeup(tp); |
| 1328 | setwin(sc, 0); |
| 1329 | } |
| 1330 | end_of_data: ; |
| 1331 | } |
| 1332 | |
| 1333 | if (event & MODEMCHG_IND) { |
| 1334 | DPRINT3(DB_MODEM, "dgm%d: port%d: " |
| 1335 | "MODEMCHG_IND\n", unit, pnum); |
| 1336 | port->imodem = mstat; |
| 1337 | if (mstat & port->dcd) { |
| 1338 | hidewin(sc); |
| 1339 | linesw[tp->t_line].l_modem(tp, 1); |
| 1340 | setwin(sc, 0); |
| 1341 | wakeup(TSA_CARR_ON(tp)); |
| 1342 | } else { |
| 1343 | hidewin(sc); |
| 1344 | linesw[tp->t_line].l_modem(tp, 0); |
| 1345 | setwin(sc, 0); |
| 1346 | if (port->draining) { |
| 1347 | port->draining = 0; |
| 1348 | wakeup(&port->draining); |
| 1349 | } |
| 1350 | } |
| 1351 | } |
| 1352 | |
| 1353 | if (event & BREAK_IND) { |
| 1354 | if ((tp->t_state & TS_ISOPEN) && (tp->t_iflag & IGNBRK)) { |
| 1355 | DPRINT3(DB_BREAK, "dgm%d: port%d:" |
| 1356 | " BREAK_IND\n", unit, pnum); |
| 1357 | hidewin(sc); |
| 1358 | linesw[tp->t_line].l_rint(TTY_BI, tp); |
| 1359 | setwin(sc, 0); |
| 1360 | } |
| 1361 | } |
| 1362 | |
| 1363 | /* Helg: with output flow control */ |
| 1364 | |
| 1365 | if (event & (LOWTX_IND | EMPTYTX_IND) ) { |
| 1366 | DPRINT3(DB_TXDATA, "dgm%d: port%d:" |
| 1367 | " LOWTX_IND or EMPTYTX_IND\n", unit, pnum); |
| 1368 | |
| 1369 | if ((event & EMPTYTX_IND ) && |
| 1370 | tp->t_outq.c_cc == 0 && port->draining) { |
| 1371 | port->draining = 0; |
| 1372 | wakeup(&port->draining); |
| 1373 | bc->ilow = 0; |
| 1374 | bc->iempty = 0; |
| 1375 | } else { |
| 1376 | |
| 1377 | int wrapmask = port->txbufsize - 1; |
| 1378 | |
| 1379 | for (obuf_full = FALSE; |
| 1380 | tp->t_outq.c_cc != 0 && !obuf_full; |
| 1381 | ) { |
| 1382 | int s; |
| 1383 | /* add "last-minute" data to write buffer */ |
| 1384 | if (!(tp->t_state & TS_BUSY)) { |
| 1385 | hidewin(sc); |
| 1386 | #ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ |
| 1387 | ttwwakeup(tp); |
| 1388 | #else |
| 1389 | if (tp->t_outq.c_cc <= tp->t_lowat) { |
| 1390 | if (tp->t_state & TS_ASLEEP) { |
| 1391 | tp->t_state &= ~TS_ASLEEP; |
| 1392 | wakeup(TSA_OLOWAT(tp)); |
| 1393 | } |
| 1394 | /* selwakeup(&tp->t_wsel); */ |
| 1395 | } |
| 1396 | #endif |
| 1397 | setwin(sc, 0); |
| 1398 | } |
| 1399 | s = spltty(); |
| 1400 | |
| 1401 | whead = bc->tin & wrapmask; |
| 1402 | wtail = bc->tout & wrapmask; |
| 1403 | |
| 1404 | if (whead < wtail) |
| 1405 | size = wtail - whead - 1; |
| 1406 | else { |
| 1407 | size = port->txbufsize - whead; |
| 1408 | if (wtail == 0) |
| 1409 | size--; |
| 1410 | } |
| 1411 | |
| 1412 | if (size == 0) { |
| 1413 | DPRINT5(DB_WR, "dgm: head = %d tail = %d size = %d full = %d\n", |
| 1414 | whead, wtail, size, obuf_full); |
| 1415 | bc->iempty = 1; |
| 1416 | bc->ilow = 1; |
| 1417 | obuf_full = TRUE; |
| 1418 | splx(s); |
| 1419 | break; |
| 1420 | } |
| 1421 | |
| 1422 | towin(sc, port->txwin); |
| 1423 | |
| 1424 | ocount = q_to_b(&tp->t_outq, port->txptr + whead, size); |
| 1425 | whead += ocount; |
| 1426 | |
| 1427 | setwin(sc, 0); |
| 1428 | bc->tin = whead; |
| 1429 | bc->tin = whead & wrapmask; |
| 1430 | splx(s); |
| 1431 | } |
| 1432 | |
| 1433 | if (obuf_full) { |
| 1434 | DPRINT1(DB_WR, " +BUSY\n"); |
| 1435 | tp->t_state |= TS_BUSY; |
| 1436 | } else { |
| 1437 | DPRINT1(DB_WR, " -BUSY\n"); |
| 1438 | hidewin(sc); |
| 1439 | #ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ |
| 1440 | /* should clear TS_BUSY before ttwwakeup */ |
| 1441 | if (tp->t_state & TS_BUSY) { |
| 1442 | tp->t_state &= ~TS_BUSY; |
| 1443 | linesw[tp->t_line].l_start(tp); |
| 1444 | ttwwakeup(tp); |
| 1445 | } |
| 1446 | #else |
| 1447 | if (tp->t_state & TS_ASLEEP) { |
| 1448 | tp->t_state &= ~TS_ASLEEP; |
| 1449 | wakeup(TSA_OLOWAT(tp)); |
| 1450 | } |
| 1451 | tp->t_state &= ~TS_BUSY; |
| 1452 | #endif |
| 1453 | setwin(sc, 0); |
| 1454 | } |
| 1455 | } |
| 1456 | } |
| 1457 | bc->idata = 1; /* require event on incoming data */ |
| 1458 | |
| 1459 | } else { |
| 1460 | bc = port->brdchan; |
| 1461 | DPRINT4(DB_EXCEPT, "dgm%d: port%d: got event 0x%x on closed port\n", |
| 1462 | unit, pnum, event); |
| 1463 | bc->rout = bc->rin; |
| 1464 | bc->idata = bc->iempty = bc->ilow = 0; |
| 1465 | } |
| 1466 | |
| 1467 | tail = (tail + 4) & (FEP_IMAX - FEP_ISTART - 4); |
| 1468 | } |
| 1469 | |
| 1470 | sc->mailbox->eout = tail; |
| 1471 | bmws_set(ws); |
| 1472 | |
| 1473 | sc->toh = timeout(dgmpoll, unit_c, hz / POLLSPERSEC); |
| 1474 | |
| 1475 | DPRINT2(DB_INFO, "dgm%d: poll done\n", sc->unit); |
| 1476 | } |
| 1477 | |
| 1478 | static int |
| 1479 | dgmioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td) |
| 1480 | { |
| 1481 | struct dgm_softc *sc; |
| 1482 | int unit, pnum; |
| 1483 | struct dgm_p *port; |
| 1484 | int mynor; |
| 1485 | struct tty *tp; |
| 1486 | volatile struct board_chan *bc; |
| 1487 | int error; |
| 1488 | int s, cs; |
| 1489 | int tiocm_xxx; |
| 1490 | |
| 1491 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
| 1492 | u_long oldcmd; |
| 1493 | struct termios term; |
| 1494 | #endif |
| 1495 | |
| 1496 | BoardMemWinState ws = bmws_get(); |
| 1497 | |
| 1498 | mynor = minor(dev); |
| 1499 | unit = MINOR_TO_UNIT(mynor); |
| 1500 | pnum = MINOR_TO_PORT(mynor); |
| 1501 | |
| 1502 | sc = devclass_get_softc(dgmdevclass, unit); |
| 1503 | port = &sc->ports[pnum]; |
| 1504 | tp = &sc->ttys[pnum]; |
| 1505 | bc = port->brdchan; |
| 1506 | |
| 1507 | if (mynor & CONTROL_MASK) { |
| 1508 | struct termios *ct; |
| 1509 | |
| 1510 | switch (mynor & CONTROL_MASK) { |
| 1511 | case CONTROL_INIT_STATE: |
| 1512 | ct = mynor & CALLOUT_MASK ? &port->it_out : &port->it_in; |
| 1513 | break; |
| 1514 | case CONTROL_LOCK_STATE: |
| 1515 | ct = mynor & CALLOUT_MASK ? &port->lt_out : &port->lt_in; |
| 1516 | break; |
| 1517 | default: |
| 1518 | return (ENODEV); /* /dev/nodev */ |
| 1519 | } |
| 1520 | switch (cmd) { |
| 1521 | case TIOCSETA: |
| 1522 | error = suser(td); |
| 1523 | if (error != 0) |
| 1524 | return (error); |
| 1525 | *ct = *(struct termios *)data; |
| 1526 | return (0); |
| 1527 | case TIOCGETA: |
| 1528 | *(struct termios *)data = *ct; |
| 1529 | return (0); |
| 1530 | case TIOCGETD: |
| 1531 | *(int *)data = TTYDISC; |
| 1532 | return (0); |
| 1533 | case TIOCGWINSZ: |
| 1534 | bzero(data, sizeof(struct winsize)); |
| 1535 | return (0); |
| 1536 | default: |
| 1537 | return (ENOTTY); |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | #if defined(COMPAT_43) || defined(COMPAT_SUNOS) |
| 1542 | term = tp->t_termios; |
| 1543 | if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { |
| 1544 | DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-ISNOW c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, term.c_cflag, term.c_iflag, term.c_lflag); |
| 1545 | } |
| 1546 | oldcmd = cmd; |
| 1547 | error = ttsetcompat(tp, &cmd, data, &term); |
| 1548 | if (error != 0) |
| 1549 | return (error); |
| 1550 | if (cmd != oldcmd) |
| 1551 | data = (caddr_t)&term; |
| 1552 | #endif |
| 1553 | |
| 1554 | if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { |
| 1555 | int cc; |
| 1556 | struct termios *dt = (struct termios *)data; |
| 1557 | struct termios *lt = mynor & CALLOUT_MASK |
| 1558 | ? &port->lt_out : &port->lt_in; |
| 1559 | |
| 1560 | DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-TOSET c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, dt->c_cflag, dt->c_iflag, dt->c_lflag); |
| 1561 | dt->c_iflag = (tp->t_iflag & lt->c_iflag) |
| 1562 | | (dt->c_iflag & ~lt->c_iflag); |
| 1563 | dt->c_oflag = (tp->t_oflag & lt->c_oflag) |
| 1564 | | (dt->c_oflag & ~lt->c_oflag); |
| 1565 | dt->c_cflag = (tp->t_cflag & lt->c_cflag) |
| 1566 | | (dt->c_cflag & ~lt->c_cflag); |
| 1567 | dt->c_lflag = (tp->t_lflag & lt->c_lflag) |
| 1568 | | (dt->c_lflag & ~lt->c_lflag); |
| 1569 | for (cc = 0; cc < NCCS; ++cc) |
| 1570 | if (lt->c_cc[cc] != 0) |
| 1571 | dt->c_cc[cc] = tp->t_cc[cc]; |
| 1572 | if (lt->c_ispeed != 0) |
| 1573 | dt->c_ispeed = tp->t_ispeed; |
| 1574 | if (lt->c_ospeed != 0) |
| 1575 | dt->c_ospeed = tp->t_ospeed; |
| 1576 | } |
| 1577 | |
| 1578 | if (cmd == TIOCSTOP) { |
| 1579 | cs = splclock(); |
| 1580 | setwin(sc, 0); |
| 1581 | fepcmd(port, PAUSETX, 0, 0, 0, 0); |
| 1582 | bmws_set(ws); |
| 1583 | splx(cs); |
| 1584 | return 0; |
| 1585 | } else if (cmd == TIOCSTART) { |
| 1586 | cs = splclock(); |
| 1587 | setwin(sc, 0); |
| 1588 | fepcmd(port, RESUMETX, 0, 0, 0, 0); |
| 1589 | bmws_set(ws); |
| 1590 | splx(cs); |
| 1591 | return 0; |
| 1592 | } |
| 1593 | |
| 1594 | if (cmd == TIOCSETAW || cmd == TIOCSETAF) |
| 1595 | port->mustdrain = 1; |
| 1596 | |
| 1597 | error = linesw[tp->t_line].l_ioctl(tp, cmd, data, flag, p); |
| 1598 | if (error != ENOIOCTL) |
| 1599 | return error; |
| 1600 | s = spltty(); |
| 1601 | error = ttioctl(tp, cmd, data, flag); |
| 1602 | disc_optim(tp, &tp->t_termios); |
| 1603 | port->mustdrain = 0; |
| 1604 | if (error != ENOIOCTL) { |
| 1605 | splx(s); |
| 1606 | if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { |
| 1607 | DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-RES c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, tp->t_cflag, tp->t_iflag, tp->t_lflag); |
| 1608 | } |
| 1609 | return error; |
| 1610 | } |
| 1611 | |
| 1612 | switch (cmd) { |
| 1613 | case TIOCSBRK: |
| 1614 | #if 0 |
| 1615 | error = dgmdrain(port); |
| 1616 | |
| 1617 | if (error != 0) { |
| 1618 | splx(s); |
| 1619 | return error; |
| 1620 | } |
| 1621 | #endif |
| 1622 | |
| 1623 | cs = splclock(); |
| 1624 | setwin(sc, 0); |
| 1625 | |
| 1626 | /* now it sends 400 millisecond break because I don't know */ |
| 1627 | /* how to send an infinite break */ |
| 1628 | |
| 1629 | fepcmd(port, SENDBREAK, 400, 0, 10, 0); |
| 1630 | hidewin(sc); |
| 1631 | splx(cs); |
| 1632 | break; |
| 1633 | case TIOCCBRK: |
| 1634 | /* now it's empty */ |
| 1635 | break; |
| 1636 | case TIOCSDTR: |
| 1637 | DPRINT3(DB_MODEM, "dgm%d: port%d: set DTR\n", unit, pnum); |
| 1638 | port->omodem |= DTR; |
| 1639 | cs = splclock(); |
| 1640 | setwin(sc, 0); |
| 1641 | fepcmd(port, SETMODEM, port->omodem, RTS, 0, 1); |
| 1642 | |
| 1643 | if (!(bc->mstat & DTR)) |
| 1644 | DPRINT3(DB_MODEM, "dgm%d: port%d: DTR is off\n", unit, pnum); |
| 1645 | |
| 1646 | hidewin(sc); |
| 1647 | splx(cs); |
| 1648 | break; |
| 1649 | case TIOCCDTR: |
| 1650 | DPRINT3(DB_MODEM, "dgm%d: port%d: reset DTR\n", unit, pnum); |
| 1651 | port->omodem &= ~DTR; |
| 1652 | cs = splclock(); |
| 1653 | setwin(sc, 0); |
| 1654 | fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); |
| 1655 | |
| 1656 | if (bc->mstat & DTR) { |
| 1657 | DPRINT3(DB_MODEM, "dgm%d: port%d: DTR is on\n", unit, pnum); |
| 1658 | } |
| 1659 | |
| 1660 | hidewin(sc); |
| 1661 | splx(cs); |
| 1662 | break; |
| 1663 | case TIOCMSET: |
| 1664 | if (*(int *)data & TIOCM_DTR) |
| 1665 | port->omodem |= DTR; |
| 1666 | else |
| 1667 | port->omodem &= ~DTR; |
| 1668 | |
| 1669 | if (*(int *)data & TIOCM_RTS) |
| 1670 | port->omodem |= RTS; |
| 1671 | else |
| 1672 | port->omodem &= ~RTS; |
| 1673 | |
| 1674 | cs = splclock(); |
| 1675 | setwin(sc, 0); |
| 1676 | fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); |
| 1677 | hidewin(sc); |
| 1678 | splx(cs); |
| 1679 | break; |
| 1680 | case TIOCMBIS: |
| 1681 | if (*(int *)data & TIOCM_DTR) |
| 1682 | port->omodem |= DTR; |
| 1683 | |
| 1684 | if (*(int *)data & TIOCM_RTS) |
| 1685 | port->omodem |= RTS; |
| 1686 | |
| 1687 | cs = splclock(); |
| 1688 | setwin(sc, 0); |
| 1689 | fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); |
| 1690 | hidewin(sc); |
| 1691 | splx(cs); |
| 1692 | break; |
| 1693 | case TIOCMBIC: |
| 1694 | if (*(int *)data & TIOCM_DTR) |
| 1695 | port->omodem &= ~DTR; |
| 1696 | |
| 1697 | if (*(int *)data & TIOCM_RTS) |
| 1698 | port->omodem &= ~RTS; |
| 1699 | |
| 1700 | cs = splclock(); |
| 1701 | setwin(sc, 0); |
| 1702 | fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); |
| 1703 | hidewin(sc); |
| 1704 | splx(cs); |
| 1705 | break; |
| 1706 | case TIOCMGET: |
| 1707 | setwin(sc, 0); |
| 1708 | port->imodem = bc->mstat; |
| 1709 | hidewin(sc); |
| 1710 | |
| 1711 | tiocm_xxx = TIOCM_LE; /* XXX - always enabled while open */ |
| 1712 | |
| 1713 | DPRINT3(DB_MODEM, "dgm%d: port%d: modem stat -- ", unit, pnum); |
| 1714 | |
| 1715 | if (port->imodem & DTR) { |
| 1716 | DPRINT1(DB_MODEM, "DTR "); |
| 1717 | tiocm_xxx |= TIOCM_DTR; |
| 1718 | } |
| 1719 | if (port->imodem & RTS) { |
| 1720 | DPRINT1(DB_MODEM, "RTS "); |
| 1721 | tiocm_xxx |= TIOCM_RTS; |
| 1722 | } |
| 1723 | if (port->imodem & CTS) { |
| 1724 | DPRINT1(DB_MODEM, "CTS "); |
| 1725 | tiocm_xxx |= TIOCM_CTS; |
| 1726 | } |
| 1727 | if (port->imodem & port->dcd) { |
| 1728 | DPRINT1(DB_MODEM, "DCD "); |
| 1729 | tiocm_xxx |= TIOCM_CD; |
| 1730 | } |
| 1731 | if (port->imodem & port->dsr) { |
| 1732 | DPRINT1(DB_MODEM, "DSR "); |
| 1733 | tiocm_xxx |= TIOCM_DSR; |
| 1734 | } |
| 1735 | if (port->imodem & RI) { |
| 1736 | DPRINT1(DB_MODEM, "RI "); |
| 1737 | tiocm_xxx |= TIOCM_RI; |
| 1738 | } |
| 1739 | *(int *)data = tiocm_xxx; |
| 1740 | DPRINT1(DB_MODEM, "--\n"); |
| 1741 | break; |
| 1742 | case TIOCMSDTRWAIT: |
| 1743 | /* must be root since the wait applies to following logins */ |
| 1744 | error = suser(td); |
| 1745 | if (error != 0) { |
| 1746 | splx(s); |
| 1747 | return (error); |
| 1748 | } |
| 1749 | port->close_delay = *(int *)data * hz / 100; |
| 1750 | break; |
| 1751 | case TIOCMGDTRWAIT: |
| 1752 | *(int *)data = port->close_delay * 100 / hz; |
| 1753 | break; |
| 1754 | case TIOCTIMESTAMP: |
| 1755 | port->do_timestamp = 1; |
| 1756 | *(struct timeval *)data = port->timestamp; |
| 1757 | break; |
| 1758 | case TIOCDCDTIMESTAMP: |
| 1759 | port->do_dcd_timestamp = 1; |
| 1760 | *(struct timeval *)data = port->dcd_timestamp; |
| 1761 | break; |
| 1762 | default: |
| 1763 | bmws_set(ws); |
| 1764 | splx(s); |
| 1765 | return ENOTTY; |
| 1766 | } |
| 1767 | bmws_set(ws); |
| 1768 | splx(s); |
| 1769 | |
| 1770 | return 0; |
| 1771 | } |
| 1772 | |
| 1773 | static void |
| 1774 | wakeflush(void *p) |
| 1775 | { |
| 1776 | struct dgm_p *port = p; |
| 1777 | |
| 1778 | wakeup(&port->draining); |
| 1779 | } |
| 1780 | |
| 1781 | /* wait for the output to drain */ |
| 1782 | |
| 1783 | static int |
| 1784 | dgmdrain(struct dgm_p *port) |
| 1785 | { |
| 1786 | volatile struct board_chan *bc = port->brdchan; |
| 1787 | struct dgm_softc *sc; |
| 1788 | int error; |
| 1789 | int head, tail; |
| 1790 | BoardMemWinState ws = bmws_get(); |
| 1791 | |
| 1792 | sc = devclass_get_softc(dgmdevclass, port->sc->unit); |
| 1793 | |
| 1794 | setwin(sc, 0); |
| 1795 | |
| 1796 | bc->iempty = 1; |
| 1797 | tail = bc->tout; |
| 1798 | head = bc->tin; |
| 1799 | |
| 1800 | while (tail != head) { |
| 1801 | DPRINT5(DB_WR, "dgm%d: port%d: drain: head = %d tail = %d\n", |
| 1802 | port->sc->unit, port->pnum, head, tail); |
| 1803 | |
| 1804 | hidewin(sc); |
| 1805 | port->draining = 1; |
| 1806 | timeout(wakeflush, port, hz); |
| 1807 | error = tsleep(&port->draining, TTIPRI | PCATCH, "dgdrn", 0); |
| 1808 | port->draining = 0; |
| 1809 | setwin(sc, 0); |
| 1810 | |
| 1811 | if (error != 0) { |
| 1812 | DPRINT4(DB_WR, "dgm%d: port%d: tsleep(dgdrn) error = %d\n", |
| 1813 | port->sc->unit, port->pnum, error); |
| 1814 | |
| 1815 | bc->iempty = 0; |
| 1816 | bmws_set(ws); |
| 1817 | return error; |
| 1818 | } |
| 1819 | |
| 1820 | tail = bc->tout; |
| 1821 | head = bc->tin; |
| 1822 | } |
| 1823 | DPRINT5(DB_WR, "dgm%d: port%d: drain: head = %d tail = %d\n", |
| 1824 | port->sc->unit, port->pnum, head, tail); |
| 1825 | bmws_set(ws); |
| 1826 | return 0; |
| 1827 | } |
| 1828 | |
| 1829 | /* wait for the output to drain */ |
| 1830 | /* or simply clear the buffer it it's stopped */ |
| 1831 | |
| 1832 | static void |
| 1833 | dgm_drain_or_flush(struct dgm_p *port) |
| 1834 | { |
| 1835 | volatile struct board_chan *bc = port->brdchan; |
| 1836 | struct tty *tp = port->tty; |
| 1837 | struct dgm_softc *sc; |
| 1838 | int error; |
| 1839 | int lasttail; |
| 1840 | int head, tail; |
| 1841 | |
| 1842 | sc = devclass_get_softc(dgmdevclass, port->sc->unit); |
| 1843 | setwin(sc, 0); |
| 1844 | |
| 1845 | lasttail = -1; |
| 1846 | bc->iempty = 1; |
| 1847 | tail = bc->tout; |
| 1848 | head = bc->tin; |
| 1849 | |
| 1850 | while (tail != head /* && tail != lasttail */ ) { |
| 1851 | DPRINT5(DB_WR, "dgm%d: port%d: flush: head = %d tail = %d\n", |
| 1852 | port->sc->unit, port->pnum, head, tail); |
| 1853 | |
| 1854 | /* if there is no carrier simply clean the buffer */ |
| 1855 | if (!(tp->t_state & TS_CARR_ON)) { |
| 1856 | bc->tout = bc->tin = 0; |
| 1857 | bc->iempty = 0; |
| 1858 | hidewin(sc); |
| 1859 | return; |
| 1860 | } |
| 1861 | |
| 1862 | hidewin(sc); |
| 1863 | port->draining = 1; |
| 1864 | timeout(wakeflush, port, hz); |
| 1865 | error = tsleep(&port->draining, TTIPRI | PCATCH, "dgfls", 0); |
| 1866 | port->draining = 0; |
| 1867 | setwin(sc, 0); |
| 1868 | |
| 1869 | if (error != 0) { |
| 1870 | DPRINT4(DB_WR, "dgm%d: port%d: tsleep(dgfls)" |
| 1871 | " error = %d\n", port->sc->unit, port->pnum, error); |
| 1872 | |
| 1873 | /* silently clean the buffer */ |
| 1874 | |
| 1875 | bc->tout = bc->tin = 0; |
| 1876 | bc->iempty = 0; |
| 1877 | hidewin(sc); |
| 1878 | return; |
| 1879 | } |
| 1880 | |
| 1881 | lasttail = tail; |
| 1882 | tail = bc->tout; |
| 1883 | head = bc->tin; |
| 1884 | } |
| 1885 | hidewin(sc); |
| 1886 | DPRINT5(DB_WR, "dgm%d: port%d: flush: head = %d tail = %d\n", |
| 1887 | port->sc->unit, port->pnum, head, tail); |
| 1888 | } |
| 1889 | |
| 1890 | static int |
| 1891 | dgmparam(struct tty *tp, struct termios *t) |
| 1892 | { |
| 1893 | int unit = MINOR_TO_UNIT(minor(tp->t_dev)); |
| 1894 | int pnum = MINOR_TO_PORT(minor(tp->t_dev)); |
| 1895 | volatile struct board_chan *bc; |
| 1896 | struct dgm_softc *sc; |
| 1897 | struct dgm_p *port; |
| 1898 | int cflag; |
| 1899 | int head; |
| 1900 | int mval; |
| 1901 | int iflag; |
| 1902 | int hflow; |
| 1903 | int cs; |
| 1904 | BoardMemWinState ws = bmws_get(); |
| 1905 | |
| 1906 | sc = devclass_get_softc(dgmdevclass, unit); |
| 1907 | port = &sc->ports[pnum]; |
| 1908 | bc = port->brdchan; |
| 1909 | |
| 1910 | DPRINT6(DB_PARAM, "dgm%d: port%d: dgmparm c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, t->c_cflag, t->c_iflag, t->c_lflag); |
| 1911 | |
| 1912 | if (port->mustdrain) { |
| 1913 | DPRINT3(DB_PARAM, "dgm%d: port%d: must call dgmdrain()\n", unit, pnum); |
| 1914 | dgmdrain(port); |
| 1915 | } |
| 1916 | |
| 1917 | cflag = ttspeedtab(t->c_ospeed, dgmspeedtab); |
| 1918 | |
| 1919 | if (t->c_ispeed == 0) |
| 1920 | t->c_ispeed = t->c_ospeed; |
| 1921 | |
| 1922 | if (cflag < 0 /* || cflag > 0 && t->c_ispeed != t->c_ospeed */) { |
| 1923 | DPRINT4(DB_PARAM, "dgm%d: port%d: invalid cflag = 0%o\n", unit, pnum, cflag); |
| 1924 | return (EINVAL); |
| 1925 | } |
| 1926 | |
| 1927 | cs = splclock(); |
| 1928 | setwin(sc, 0); |
| 1929 | |
| 1930 | if (cflag == 0) { /* hangup */ |
| 1931 | DPRINT3(DB_PARAM, "dgm%d: port%d: hangup\n", unit, pnum); |
| 1932 | head = bc->rin; |
| 1933 | bc->rout = head; |
| 1934 | head = bc->tin; |
| 1935 | fepcmd(port, STOUT, (unsigned)head, 0, 0, 0); |
| 1936 | mval= port->omodem & ~(DTR|RTS); |
| 1937 | } else { |
| 1938 | cflag |= dgmflags(dgm_cflags, t->c_cflag); |
| 1939 | |
| 1940 | if (cflag != port->fepcflag) { |
| 1941 | port->fepcflag = cflag; |
| 1942 | DPRINT5(DB_PARAM, "dgm%d: port%d: set cflag = 0x%x c = 0x%x\n", |
| 1943 | unit, pnum, cflag, t->c_cflag&~CRTSCTS); |
| 1944 | fepcmd(port, SETCTRLFLAGS, (unsigned)cflag, 0, 0, 0); |
| 1945 | } |
| 1946 | mval= port->omodem | (DTR|RTS); |
| 1947 | } |
| 1948 | |
| 1949 | iflag = dgmflags(dgm_iflags, t->c_iflag); |
| 1950 | if (iflag != port->fepiflag) { |
| 1951 | port->fepiflag = iflag; |
| 1952 | DPRINT5(DB_PARAM, "dgm%d: port%d: set iflag = 0x%x c = 0x%x\n", unit, pnum, iflag, t->c_iflag); |
| 1953 | fepcmd(port, SETIFLAGS, (unsigned)iflag, 0, 0, 0); |
| 1954 | } |
| 1955 | |
| 1956 | bc->mint = port->dcd; |
| 1957 | |
| 1958 | hflow = dgmflags(dgm_flow, t->c_cflag); |
| 1959 | if (hflow != port->hflow) { |
| 1960 | port->hflow = hflow; |
| 1961 | DPRINT5(DB_PARAM, "dgm%d: port%d: set hflow = 0x%x f = 0x%x\n", unit, pnum, hflow, t->c_cflag&CRTSCTS); |
| 1962 | fepcmd(port, SETHFLOW, (unsigned)hflow, 0xff, 0, 1); |
| 1963 | } |
| 1964 | |
| 1965 | if (port->omodem != mval) { |
| 1966 | DPRINT5(DB_PARAM, "dgm%d: port%d: setting modem parameters 0x%x was 0x%x\n", |
| 1967 | unit, pnum, mval, port->omodem); |
| 1968 | port->omodem = mval; |
| 1969 | fepcmd(port, SETMODEM, (unsigned)mval, RTS|DTR, 0, 1); |
| 1970 | } |
| 1971 | |
| 1972 | if (port->fepstartc != t->c_cc[VSTART] || |
| 1973 | port->fepstopc != t->c_cc[VSTOP]) { |
| 1974 | DPRINT5(DB_PARAM, "dgm%d: port%d: set startc = %d, stopc = %d\n", unit, pnum, t->c_cc[VSTART], t->c_cc[VSTOP]); |
| 1975 | port->fepstartc = t->c_cc[VSTART]; |
| 1976 | port->fepstopc = t->c_cc[VSTOP]; |
| 1977 | fepcmd(port, SONOFFC, port->fepstartc, port->fepstopc, 0, 1); |
| 1978 | } |
| 1979 | |
| 1980 | bmws_set(ws); |
| 1981 | splx(cs); |
| 1982 | |
| 1983 | return 0; |
| 1984 | |
| 1985 | } |
| 1986 | |
| 1987 | static void |
| 1988 | dgmstart(struct tty *tp) |
| 1989 | { |
| 1990 | int unit; |
| 1991 | int pnum; |
| 1992 | struct dgm_p *port; |
| 1993 | struct dgm_softc *sc; |
| 1994 | volatile struct board_chan *bc; |
| 1995 | int head, tail; |
| 1996 | int size, ocount; |
| 1997 | int s; |
| 1998 | int wmask; |
| 1999 | |
| 2000 | BoardMemWinState ws = bmws_get(); |
| 2001 | |
| 2002 | unit = MINOR_TO_UNIT(minor(tp->t_dev)); |
| 2003 | pnum = MINOR_TO_PORT(minor(tp->t_dev)); |
| 2004 | sc = devclass_get_softc(dgmdevclass, unit); |
| 2005 | port = &sc->ports[pnum]; |
| 2006 | bc = port->brdchan; |
| 2007 | |
| 2008 | wmask = port->txbufsize - 1; |
| 2009 | |
| 2010 | s = spltty(); |
| 2011 | |
| 2012 | while (tp->t_outq.c_cc != 0) { |
| 2013 | int cs; |
| 2014 | #ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ |
| 2015 | ttwwakeup(tp); |
| 2016 | #else |
| 2017 | if (tp->t_outq.c_cc <= tp->t_lowat) { |
| 2018 | if (tp->t_state & TS_ASLEEP) { |
| 2019 | tp->t_state &= ~TS_ASLEEP; |
| 2020 | wakeup(TSA_OLOWAT(tp)); |
| 2021 | } |
| 2022 | /*selwakeup(&tp->t_wsel);*/ |
| 2023 | } |
| 2024 | #endif |
| 2025 | cs = splclock(); |
| 2026 | setwin(sc, 0); |
| 2027 | |
| 2028 | head = bc->tin & wmask; |
| 2029 | |
| 2030 | do { tail = bc->tout; } while (tail != bc->tout); |
| 2031 | tail = bc->tout & wmask; |
| 2032 | |
| 2033 | DPRINT5(DB_WR, "dgm%d: port%d: s tx head = %d tail = %d\n", unit, pnum, head, tail); |
| 2034 | |
| 2035 | #ifdef LEAVE_FREE_CHARS |
| 2036 | if (tail > head) { |
| 2037 | size = tail - head - LEAVE_FREE_CHARS; |
| 2038 | if (size < 0) |
| 2039 | size = 0; |
| 2040 | else { |
| 2041 | size = port->txbufsize - head; |
| 2042 | if (tail + port->txbufsize < head) |
| 2043 | size = 0; |
| 2044 | } |
| 2045 | } |
| 2046 | #else |
| 2047 | if (tail > head) |
| 2048 | size = tail - head - 1; |
| 2049 | else { |
| 2050 | size = port->txbufsize - head; |
| 2051 | if (tail == 0) |
| 2052 | size--; |
| 2053 | } |
| 2054 | #endif |
| 2055 | |
| 2056 | if (size == 0) { |
| 2057 | bc->iempty = 1; |
| 2058 | bc->ilow = 1; |
| 2059 | splx(cs); |
| 2060 | bmws_set(ws); |
| 2061 | tp->t_state |= TS_BUSY; |
| 2062 | splx(s); |
| 2063 | return; |
| 2064 | } |
| 2065 | |
| 2066 | towin(sc, port->txwin); |
| 2067 | |
| 2068 | ocount = q_to_b(&tp->t_outq, port->txptr + head, size); |
| 2069 | head += ocount; |
| 2070 | if (head >= port->txbufsize) |
| 2071 | head -= port->txbufsize; |
| 2072 | |
| 2073 | setwin(sc, 0); |
| 2074 | bc->tin = head; |
| 2075 | |
| 2076 | DPRINT5(DB_WR, "dgm%d: port%d: tx avail = %d count = %d\n", |
| 2077 | unit, pnum, size, ocount); |
| 2078 | hidewin(sc); |
| 2079 | splx(cs); |
| 2080 | } |
| 2081 | |
| 2082 | bmws_set(ws); |
| 2083 | splx(s); |
| 2084 | |
| 2085 | #ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ |
| 2086 | if (tp->t_state & TS_BUSY) { |
| 2087 | tp->t_state &= ~TS_BUSY; |
| 2088 | linesw[tp->t_line].l_start(tp); |
| 2089 | ttwwakeup(tp); |
| 2090 | } |
| 2091 | #else |
| 2092 | if (tp->t_state & TS_ASLEEP) { |
| 2093 | tp->t_state &= ~TS_ASLEEP; |
| 2094 | wakeup(TSA_OLOWAT(tp)); |
| 2095 | } |
| 2096 | tp->t_state& = ~TS_BUSY; |
| 2097 | #endif |
| 2098 | } |
| 2099 | |
| 2100 | void |
| 2101 | dgmstop(struct tty *tp, int rw) |
| 2102 | { |
| 2103 | int unit; |
| 2104 | int pnum; |
| 2105 | struct dgm_p *port; |
| 2106 | struct dgm_softc *sc; |
| 2107 | volatile struct board_chan *bc; |
| 2108 | int s; |
| 2109 | |
| 2110 | BoardMemWinState ws = bmws_get(); |
| 2111 | |
| 2112 | unit = MINOR_TO_UNIT(minor(tp->t_dev)); |
| 2113 | pnum = MINOR_TO_PORT(minor(tp->t_dev)); |
| 2114 | |
| 2115 | sc = devclass_get_softc(dgmdevclass, unit); |
| 2116 | port = &sc->ports[pnum]; |
| 2117 | bc = port->brdchan; |
| 2118 | |
| 2119 | DPRINT3(DB_WR, "dgm%d: port%d: stop\n", port->sc->unit, port->pnum); |
| 2120 | |
| 2121 | s = spltty(); |
| 2122 | setwin(sc, 0); |
| 2123 | |
| 2124 | if (rw & FWRITE) { |
| 2125 | /* clear output queue */ |
| 2126 | bc->tout = bc->tin = 0; |
| 2127 | bc->ilow = 0; |
| 2128 | bc->iempty = 0; |
| 2129 | } |
| 2130 | if (rw & FREAD) { |
| 2131 | /* clear input queue */ |
| 2132 | bc->rout = bc->rin; |
| 2133 | bc->idata = 1; |
| 2134 | } |
| 2135 | hidewin(sc); |
| 2136 | bmws_set(ws); |
| 2137 | splx(s); |
| 2138 | dgmstart(tp); |
| 2139 | } |
| 2140 | |
| 2141 | static void |
| 2142 | fepcmd(struct dgm_p *port, |
| 2143 | unsigned cmd, |
| 2144 | unsigned op1, |
| 2145 | unsigned op2, |
| 2146 | unsigned ncmds, |
| 2147 | unsigned bytecmd) |
| 2148 | { |
| 2149 | u_char *mem; |
| 2150 | unsigned tail, head; |
| 2151 | int count, n; |
| 2152 | |
| 2153 | KASSERT(port->sc, ("Couldn't (re)obtain driver softc")); |
| 2154 | mem = port->sc->vmem; |
| 2155 | |
| 2156 | if (!port->enabled) { |
| 2157 | printf("dgm%d: port%d: FEP command on disabled port\n", |
| 2158 | port->sc->unit, port->pnum); |
| 2159 | return; |
| 2160 | } |
| 2161 | |
| 2162 | /* setwin(port->sc, 0); Require this to be set by caller */ |
| 2163 | head = port->sc->mailbox->cin; |
| 2164 | |
| 2165 | if (head >= FEP_CMAX - FEP_CSTART || (head & 3)) { |
| 2166 | printf("dgm%d: port%d: wrong pointer head of command queue : 0x%x\n", |
| 2167 | port->sc->unit, port->pnum, head); |
| 2168 | return; |
| 2169 | } |
| 2170 | |
| 2171 | mem[head + FEP_CSTART] = cmd; |
| 2172 | mem[head + FEP_CSTART + 1] = port->pnum; |
| 2173 | if (bytecmd) { |
| 2174 | mem[head + FEP_CSTART + 2] = op1; |
| 2175 | mem[head + FEP_CSTART + 3] = op2; |
| 2176 | } else { |
| 2177 | mem[head + FEP_CSTART + 2] = op1 & 0xff; |
| 2178 | mem[head + FEP_CSTART + 3] = (op1 >> 8) & 0xff; |
| 2179 | } |
| 2180 | |
| 2181 | DPRINT7(DB_FEP, "dgm%d: port%d: %s cmd = 0x%x op1 = 0x%x op2 = 0x%x\n", port->sc->unit, port->pnum, |
| 2182 | (bytecmd)?"byte":"word", cmd, mem[head + FEP_CSTART + 2], mem[head + FEP_CSTART + 3]); |
| 2183 | |
| 2184 | head = (head + 4) & (FEP_CMAX - FEP_CSTART - 4); |
| 2185 | port->sc->mailbox->cin = head; |
| 2186 | |
| 2187 | count = FEPTIMEOUT; |
| 2188 | |
| 2189 | while (count-- != 0) { |
| 2190 | head = port->sc->mailbox->cin; |
| 2191 | tail = port->sc->mailbox->cout; |
| 2192 | |
| 2193 | n = (head - tail) & (FEP_CMAX - FEP_CSTART - 4); |
| 2194 | if (n <= ncmds * (sizeof(ushort)*4)) |
| 2195 | return; |
| 2196 | } |
| 2197 | printf("dgm%d(%d): timeout on FEP cmd = 0x%x\n", port->sc->unit, port->pnum, cmd); |
| 2198 | } |
| 2199 | |
| 2200 | static void |
| 2201 | disc_optim(struct tty *tp, struct termios *t) |
| 2202 | { |
| 2203 | if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) |
| 2204 | && (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) |
| 2205 | && (!(t->c_iflag & PARMRK) |
| 2206 | || (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) |
| 2207 | && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) |
| 2208 | && linesw[tp->t_line].l_rint == ttyinput) |
| 2209 | tp->t_state |= TS_CAN_BYPASS_L_RINT; |
| 2210 | else |
| 2211 | tp->t_state &= ~TS_CAN_BYPASS_L_RINT; |
| 2212 | } |