| 1 | /* $NetBSD: pckbport.c,v 1.17 2014/01/11 20:29:03 jakllsch Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2004 Ben Harris |
| 5 | * Copyright (c) 1998 |
| 6 | * Matthias Drochner. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: pckbport.c,v 1.17 2014/01/11 20:29:03 jakllsch Exp $" ); |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/systm.h> |
| 34 | #include <sys/callout.h> |
| 35 | #include <sys/kernel.h> |
| 36 | #include <sys/proc.h> |
| 37 | #include <sys/device.h> |
| 38 | #include <sys/malloc.h> |
| 39 | #include <sys/errno.h> |
| 40 | #include <sys/queue.h> |
| 41 | |
| 42 | #include <dev/pckbport/pckbdreg.h> |
| 43 | #include <dev/pckbport/pckbportvar.h> |
| 44 | |
| 45 | #include "locators.h" |
| 46 | |
| 47 | #include "pckbd.h" |
| 48 | #if (NPCKBD > 0) |
| 49 | #include <dev/pckbport/pckbdvar.h> |
| 50 | #endif |
| 51 | |
| 52 | /* descriptor for one device command */ |
| 53 | struct pckbport_devcmd { |
| 54 | TAILQ_ENTRY(pckbport_devcmd) next; |
| 55 | int flags; |
| 56 | #define KBC_CMDFLAG_SYNC 1 /* give descriptor back to caller */ |
| 57 | #define KBC_CMDFLAG_SLOW 2 |
| 58 | u_char cmd[4]; |
| 59 | int cmdlen, cmdidx, retries; |
| 60 | u_char response[4]; |
| 61 | int status, responselen, responseidx; |
| 62 | }; |
| 63 | |
| 64 | /* data per slave device */ |
| 65 | struct pckbport_slotdata { |
| 66 | int polling; /* don't process data in interrupt handler */ |
| 67 | TAILQ_HEAD(, pckbport_devcmd) cmdqueue; /* active commands */ |
| 68 | TAILQ_HEAD(, pckbport_devcmd) freequeue; /* free commands */ |
| 69 | #define NCMD 5 |
| 70 | struct pckbport_devcmd cmds[NCMD]; |
| 71 | }; |
| 72 | |
| 73 | #define CMD_IN_QUEUE(q) (TAILQ_FIRST(&(q)->cmdqueue) != NULL) |
| 74 | |
| 75 | static void pckbport_init_slotdata(struct pckbport_slotdata *); |
| 76 | static int pckbportprint(void *, const char *); |
| 77 | |
| 78 | static struct pckbport_slotdata pckbport_cons_slotdata; |
| 79 | |
| 80 | static int pckbport_poll_data1(pckbport_tag_t, pckbport_slot_t); |
| 81 | static int pckbport_send_devcmd(struct pckbport_tag *, pckbport_slot_t, |
| 82 | u_char); |
| 83 | static void pckbport_poll_cmd1(struct pckbport_tag *, pckbport_slot_t, |
| 84 | struct pckbport_devcmd *); |
| 85 | |
| 86 | static void pckbport_cleanqueue(struct pckbport_slotdata *); |
| 87 | static void pckbport_cleanup(void *); |
| 88 | static int pckbport_cmdresponse(struct pckbport_tag *, pckbport_slot_t, |
| 89 | u_char); |
| 90 | static void pckbport_start(struct pckbport_tag *, pckbport_slot_t); |
| 91 | |
| 92 | static const char * const pckbport_slot_names[] = { "kbd" , "aux" }; |
| 93 | |
| 94 | static struct pckbport_tag pckbport_cntag; |
| 95 | |
| 96 | #define KBD_DELAY DELAY(8) |
| 97 | |
| 98 | #ifdef PCKBPORTDEBUG |
| 99 | #define DPRINTF(a) printf a |
| 100 | #else |
| 101 | #define DPRINTF(a) |
| 102 | #endif |
| 103 | |
| 104 | static int |
| 105 | pckbport_poll_data1(pckbport_tag_t t, pckbport_slot_t slot) |
| 106 | { |
| 107 | |
| 108 | return t->t_ops->t_poll_data1(t->t_cookie, slot); |
| 109 | } |
| 110 | |
| 111 | static int |
| 112 | pckbport_send_devcmd(struct pckbport_tag *t, pckbport_slot_t slot, u_char val) |
| 113 | { |
| 114 | |
| 115 | return t->t_ops->t_send_devcmd(t->t_cookie, slot, val); |
| 116 | } |
| 117 | |
| 118 | pckbport_tag_t |
| 119 | pckbport_attach(void *cookie, struct pckbport_accessops const *ops) |
| 120 | { |
| 121 | pckbport_tag_t t; |
| 122 | |
| 123 | if (cookie == pckbport_cntag.t_cookie && |
| 124 | ops == pckbport_cntag.t_ops) |
| 125 | return &pckbport_cntag; |
| 126 | t = malloc(sizeof(struct pckbport_tag), M_DEVBUF, M_NOWAIT | M_ZERO); |
| 127 | if (t == NULL) return NULL; |
| 128 | callout_init(&t->t_cleanup, 0); |
| 129 | t->t_cookie = cookie; |
| 130 | t->t_ops = ops; |
| 131 | return t; |
| 132 | } |
| 133 | |
| 134 | device_t |
| 135 | pckbport_attach_slot(device_t dev, pckbport_tag_t t, |
| 136 | pckbport_slot_t slot) |
| 137 | { |
| 138 | struct pckbport_attach_args pa; |
| 139 | void *sdata; |
| 140 | device_t found; |
| 141 | int alloced = 0; |
| 142 | int locs[PCKBPORTCF_NLOCS]; |
| 143 | |
| 144 | pa.pa_tag = t; |
| 145 | pa.pa_slot = slot; |
| 146 | |
| 147 | if (t->t_slotdata[slot] == NULL) { |
| 148 | sdata = malloc(sizeof(struct pckbport_slotdata), |
| 149 | M_DEVBUF, M_NOWAIT); |
| 150 | if (sdata == NULL) { |
| 151 | aprint_error_dev(dev, "no memory\n" ); |
| 152 | return 0; |
| 153 | } |
| 154 | t->t_slotdata[slot] = sdata; |
| 155 | pckbport_init_slotdata(t->t_slotdata[slot]); |
| 156 | alloced++; |
| 157 | } |
| 158 | |
| 159 | locs[PCKBPORTCF_SLOT] = slot; |
| 160 | |
| 161 | found = config_found_sm_loc(dev, "pckbport" , locs, &pa, |
| 162 | pckbportprint, config_stdsubmatch); |
| 163 | |
| 164 | if (found == NULL && alloced) { |
| 165 | free(t->t_slotdata[slot], M_DEVBUF); |
| 166 | t->t_slotdata[slot] = NULL; |
| 167 | } |
| 168 | |
| 169 | return found; |
| 170 | } |
| 171 | |
| 172 | int |
| 173 | pckbportprint(void *aux, const char *pnp) |
| 174 | { |
| 175 | struct pckbport_attach_args *pa = aux; |
| 176 | |
| 177 | if (!pnp) |
| 178 | aprint_normal(" (%s slot)" , pckbport_slot_names[pa->pa_slot]); |
| 179 | return QUIET; |
| 180 | } |
| 181 | |
| 182 | void |
| 183 | pckbport_init_slotdata(struct pckbport_slotdata *q) |
| 184 | { |
| 185 | int i; |
| 186 | |
| 187 | TAILQ_INIT(&q->cmdqueue); |
| 188 | TAILQ_INIT(&q->freequeue); |
| 189 | |
| 190 | for (i = 0; i < NCMD; i++) |
| 191 | TAILQ_INSERT_TAIL(&q->freequeue, &(q->cmds[i]), next); |
| 192 | |
| 193 | q->polling = 0; |
| 194 | } |
| 195 | |
| 196 | void |
| 197 | pckbport_flush(pckbport_tag_t t, pckbport_slot_t slot) |
| 198 | { |
| 199 | |
| 200 | (void)pckbport_poll_data1(t, slot); |
| 201 | } |
| 202 | |
| 203 | int |
| 204 | pckbport_poll_data(pckbport_tag_t t, pckbport_slot_t slot) |
| 205 | { |
| 206 | struct pckbport_slotdata *q = t->t_slotdata[slot]; |
| 207 | int c; |
| 208 | |
| 209 | c = pckbport_poll_data1(t, slot); |
| 210 | if (c != -1 && q && CMD_IN_QUEUE(q)) |
| 211 | /* |
| 212 | * we jumped into a running command - try to deliver |
| 213 | * the response |
| 214 | */ |
| 215 | if (pckbport_cmdresponse(t, slot, c)) |
| 216 | return -1; |
| 217 | return c; |
| 218 | } |
| 219 | |
| 220 | /* |
| 221 | * switch scancode translation on / off |
| 222 | * return nonzero on success |
| 223 | */ |
| 224 | int |
| 225 | pckbport_xt_translation(pckbport_tag_t t, pckbport_slot_t slot, int on) |
| 226 | { |
| 227 | |
| 228 | return t->t_ops->t_xt_translation(t->t_cookie, slot, on); |
| 229 | } |
| 230 | |
| 231 | void |
| 232 | pckbport_slot_enable(pckbport_tag_t t, pckbport_slot_t slot, int on) |
| 233 | { |
| 234 | |
| 235 | t->t_ops->t_slot_enable(t->t_cookie, slot, on); |
| 236 | } |
| 237 | |
| 238 | void |
| 239 | pckbport_set_poll(pckbport_tag_t t, pckbport_slot_t slot, int on) |
| 240 | { |
| 241 | |
| 242 | t->t_slotdata[slot]->polling = on; |
| 243 | t->t_ops->t_set_poll(t->t_cookie, slot, on); |
| 244 | } |
| 245 | |
| 246 | /* |
| 247 | * Pass command to device, poll for ACK and data. |
| 248 | * to be called at spltty() |
| 249 | */ |
| 250 | static void |
| 251 | pckbport_poll_cmd1(struct pckbport_tag *t, pckbport_slot_t slot, |
| 252 | struct pckbport_devcmd *cmd) |
| 253 | { |
| 254 | int i, c = 0; |
| 255 | |
| 256 | while (cmd->cmdidx < cmd->cmdlen) { |
| 257 | if (!pckbport_send_devcmd(t, slot, cmd->cmd[cmd->cmdidx])) { |
| 258 | printf("pckbport_cmd: send error\n" ); |
| 259 | cmd->status = EIO; |
| 260 | return; |
| 261 | } |
| 262 | for (i = 10; i; i--) { /* 1s ??? */ |
| 263 | c = pckbport_poll_data1(t, slot); |
| 264 | if (c != -1) |
| 265 | break; |
| 266 | } |
| 267 | switch (c) { |
| 268 | case KBR_ACK: |
| 269 | cmd->cmdidx++; |
| 270 | continue; |
| 271 | case KBR_BAT_DONE: |
| 272 | case KBR_BAT_FAIL: |
| 273 | case KBR_RESEND: |
| 274 | DPRINTF(("%s: %s\n" , __func__, c == KBR_RESEND ? |
| 275 | "RESEND" : (c == KBR_BAT_DONE ? "BAT_DONE" : |
| 276 | "BAT_FAIL" ))); |
| 277 | if (cmd->retries++ < 5) |
| 278 | continue; |
| 279 | else { |
| 280 | DPRINTF(("%s: cmd failed\n" , __func__)); |
| 281 | cmd->status = EIO; |
| 282 | return; |
| 283 | } |
| 284 | case -1: |
| 285 | DPRINTF(("%s: timeout\n" , __func__)); |
| 286 | cmd->status = EIO; |
| 287 | return; |
| 288 | } |
| 289 | DPRINTF(("%s: lost 0x%x\n" , __func__, c)); |
| 290 | } |
| 291 | |
| 292 | while (cmd->responseidx < cmd->responselen) { |
| 293 | if (cmd->flags & KBC_CMDFLAG_SLOW) |
| 294 | i = 100; /* 10s ??? */ |
| 295 | else |
| 296 | i = 10; /* 1s ??? */ |
| 297 | while (i--) { |
| 298 | c = pckbport_poll_data1(t, slot); |
| 299 | if (c != -1) |
| 300 | break; |
| 301 | } |
| 302 | if (c == -1) { |
| 303 | DPRINTF(("%s: no data\n" , __func__)); |
| 304 | cmd->status = ETIMEDOUT; |
| 305 | return; |
| 306 | } else |
| 307 | cmd->response[cmd->responseidx++] = c; |
| 308 | } |
| 309 | } |
| 310 | |
| 311 | /* for use in autoconfiguration */ |
| 312 | int |
| 313 | pckbport_poll_cmd(pckbport_tag_t t, pckbport_slot_t slot, const u_char *cmd, |
| 314 | int len, int responselen, u_char *respbuf, int slow) |
| 315 | { |
| 316 | struct pckbport_devcmd nc; |
| 317 | |
| 318 | if ((len > 4) || (responselen > 4)) |
| 319 | return (EINVAL); |
| 320 | |
| 321 | memset(&nc, 0, sizeof(nc)); |
| 322 | memcpy(nc.cmd, cmd, len); |
| 323 | nc.cmdlen = len; |
| 324 | nc.responselen = responselen; |
| 325 | nc.flags = (slow ? KBC_CMDFLAG_SLOW : 0); |
| 326 | |
| 327 | pckbport_poll_cmd1(t, slot, &nc); |
| 328 | |
| 329 | if (nc.status == 0 && respbuf) |
| 330 | memcpy(respbuf, nc.response, responselen); |
| 331 | |
| 332 | return nc.status; |
| 333 | } |
| 334 | |
| 335 | /* |
| 336 | * Clean up a command queue, throw away everything. |
| 337 | */ |
| 338 | void |
| 339 | pckbport_cleanqueue(struct pckbport_slotdata *q) |
| 340 | { |
| 341 | struct pckbport_devcmd *cmd; |
| 342 | |
| 343 | while ((cmd = TAILQ_FIRST(&q->cmdqueue))) { |
| 344 | TAILQ_REMOVE(&q->cmdqueue, cmd, next); |
| 345 | #ifdef PCKBPORTDEBUG |
| 346 | printf("%s: removing" , __func__); |
| 347 | for (int i = 0; i < cmd->cmdlen; i++) |
| 348 | printf(" %02x" , cmd->cmd[i]); |
| 349 | printf("\n" ); |
| 350 | #endif |
| 351 | TAILQ_INSERT_TAIL(&q->freequeue, cmd, next); |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | /* |
| 356 | * Timeout error handler: clean queues and data port. |
| 357 | * XXX could be less invasive. |
| 358 | */ |
| 359 | void |
| 360 | pckbport_cleanup(void *self) |
| 361 | { |
| 362 | struct pckbport_tag *t = self; |
| 363 | int s; |
| 364 | u_char cmd[1], resp[2]; |
| 365 | |
| 366 | printf("pckbport: command timeout\n" ); |
| 367 | |
| 368 | s = spltty(); |
| 369 | |
| 370 | if (t->t_slotdata[PCKBPORT_KBD_SLOT]) |
| 371 | pckbport_cleanqueue(t->t_slotdata[PCKBPORT_KBD_SLOT]); |
| 372 | if (t->t_slotdata[PCKBPORT_AUX_SLOT]) |
| 373 | pckbport_cleanqueue(t->t_slotdata[PCKBPORT_AUX_SLOT]); |
| 374 | |
| 375 | #if 0 /* XXXBJH Move to controller driver? */ |
| 376 | while (bus_space_read_1(t->t_iot, t->t_ioh_c, 0) & KBS_DIB) { |
| 377 | KBD_DELAY; |
| 378 | (void) bus_space_read_1(t->t_iot, t->t_ioh_d, 0); |
| 379 | } |
| 380 | #endif |
| 381 | |
| 382 | cmd[0] = KBC_RESET; |
| 383 | (void)pckbport_poll_cmd(t, PCKBPORT_KBD_SLOT, cmd, 1, 2, resp, 1); |
| 384 | pckbport_flush(t, PCKBPORT_KBD_SLOT); |
| 385 | |
| 386 | splx(s); |
| 387 | } |
| 388 | |
| 389 | /* |
| 390 | * Pass command to device during normal operation. |
| 391 | * to be called at spltty() |
| 392 | */ |
| 393 | void |
| 394 | pckbport_start(struct pckbport_tag *t, pckbport_slot_t slot) |
| 395 | { |
| 396 | struct pckbport_slotdata *q = t->t_slotdata[slot]; |
| 397 | struct pckbport_devcmd *cmd = TAILQ_FIRST(&q->cmdqueue); |
| 398 | |
| 399 | KASSERT(cmd != NULL); |
| 400 | if (q->polling) { |
| 401 | do { |
| 402 | pckbport_poll_cmd1(t, slot, cmd); |
| 403 | if (cmd->status) |
| 404 | printf("pckbport_start: command error\n" ); |
| 405 | |
| 406 | TAILQ_REMOVE(&q->cmdqueue, cmd, next); |
| 407 | if (cmd->flags & KBC_CMDFLAG_SYNC) |
| 408 | wakeup(cmd); |
| 409 | else { |
| 410 | callout_stop(&t->t_cleanup); |
| 411 | TAILQ_INSERT_TAIL(&q->freequeue, cmd, next); |
| 412 | } |
| 413 | cmd = TAILQ_FIRST(&q->cmdqueue); |
| 414 | } while (cmd); |
| 415 | return; |
| 416 | } |
| 417 | |
| 418 | if (!pckbport_send_devcmd(t, slot, cmd->cmd[cmd->cmdidx])) { |
| 419 | printf("pckbport_start: send error\n" ); |
| 420 | /* XXX what now? */ |
| 421 | return; |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | /* |
| 426 | * Handle command responses coming in asynchronously, |
| 427 | * return nonzero if valid response. |
| 428 | * to be called at spltty() |
| 429 | */ |
| 430 | int |
| 431 | pckbport_cmdresponse(struct pckbport_tag *t, pckbport_slot_t slot, u_char data) |
| 432 | { |
| 433 | struct pckbport_slotdata *q = t->t_slotdata[slot]; |
| 434 | struct pckbport_devcmd *cmd = TAILQ_FIRST(&q->cmdqueue); |
| 435 | |
| 436 | KASSERT(cmd != NULL); |
| 437 | if (cmd->cmdidx < cmd->cmdlen) { |
| 438 | if (data != KBR_ACK && data != KBR_RESEND) |
| 439 | return 0; |
| 440 | |
| 441 | if (data == KBR_RESEND) { |
| 442 | if (cmd->retries++ < 5) |
| 443 | /* try again last command */ |
| 444 | goto restart; |
| 445 | else { |
| 446 | DPRINTF(("%s: cmd failed\n" , __func__)); |
| 447 | cmd->status = EIO; |
| 448 | /* dequeue */ |
| 449 | } |
| 450 | } else { |
| 451 | if (++cmd->cmdidx < cmd->cmdlen) |
| 452 | goto restart; |
| 453 | if (cmd->responselen) |
| 454 | return 1; |
| 455 | /* else dequeue */ |
| 456 | } |
| 457 | } else if (cmd->responseidx < cmd->responselen) { |
| 458 | cmd->response[cmd->responseidx++] = data; |
| 459 | if (cmd->responseidx < cmd->responselen) |
| 460 | return 1; |
| 461 | /* else dequeue */ |
| 462 | } else |
| 463 | return 0; |
| 464 | |
| 465 | /* dequeue: */ |
| 466 | TAILQ_REMOVE(&q->cmdqueue, cmd, next); |
| 467 | if (cmd->flags & KBC_CMDFLAG_SYNC) |
| 468 | wakeup(cmd); |
| 469 | else { |
| 470 | callout_stop(&t->t_cleanup); |
| 471 | TAILQ_INSERT_TAIL(&q->freequeue, cmd, next); |
| 472 | } |
| 473 | if (!CMD_IN_QUEUE(q)) |
| 474 | return 1; |
| 475 | restart: |
| 476 | pckbport_start(t, slot); |
| 477 | return 1; |
| 478 | } |
| 479 | |
| 480 | /* |
| 481 | * Put command into the device's command queue, return zero or errno. |
| 482 | */ |
| 483 | int |
| 484 | pckbport_enqueue_cmd(pckbport_tag_t t, pckbport_slot_t slot, const u_char *cmd, |
| 485 | int len, int responselen, int sync, u_char *respbuf) |
| 486 | { |
| 487 | struct pckbport_slotdata *q = t->t_slotdata[slot]; |
| 488 | struct pckbport_devcmd *nc; |
| 489 | int s, isactive, res = 0; |
| 490 | |
| 491 | if ((len > 4) || (responselen > 4)) |
| 492 | return EINVAL; |
| 493 | s = spltty(); |
| 494 | nc = TAILQ_FIRST(&q->freequeue); |
| 495 | if (nc) |
| 496 | TAILQ_REMOVE(&q->freequeue, nc, next); |
| 497 | splx(s); |
| 498 | if (!nc) |
| 499 | return ENOMEM; |
| 500 | |
| 501 | memset(nc, 0, sizeof(*nc)); |
| 502 | memcpy(nc->cmd, cmd, len); |
| 503 | nc->cmdlen = len; |
| 504 | nc->responselen = responselen; |
| 505 | nc->flags = (sync ? KBC_CMDFLAG_SYNC : 0); |
| 506 | |
| 507 | s = spltty(); |
| 508 | |
| 509 | if (q->polling && sync) |
| 510 | /* |
| 511 | * XXX We should poll until the queue is empty. |
| 512 | * But we don't come here normally, so make |
| 513 | * it simple and throw away everything. |
| 514 | */ |
| 515 | pckbport_cleanqueue(q); |
| 516 | |
| 517 | isactive = CMD_IN_QUEUE(q); |
| 518 | TAILQ_INSERT_TAIL(&q->cmdqueue, nc, next); |
| 519 | if (!isactive) |
| 520 | pckbport_start(t, slot); |
| 521 | |
| 522 | if (q->polling) |
| 523 | res = (sync ? nc->status : 0); |
| 524 | else if (sync) { |
| 525 | if ((res = tsleep(nc, 0, "kbccmd" , 1*hz))) { |
| 526 | TAILQ_REMOVE(&q->cmdqueue, nc, next); |
| 527 | pckbport_cleanup(t); |
| 528 | } else |
| 529 | res = nc->status; |
| 530 | } else |
| 531 | callout_reset(&t->t_cleanup, hz, pckbport_cleanup, t); |
| 532 | |
| 533 | if (sync) { |
| 534 | if (respbuf) |
| 535 | memcpy(respbuf, nc->response, responselen); |
| 536 | TAILQ_INSERT_TAIL(&q->freequeue, nc, next); |
| 537 | } |
| 538 | |
| 539 | splx(s); |
| 540 | |
| 541 | return res; |
| 542 | } |
| 543 | |
| 544 | void |
| 545 | pckbport_set_inputhandler(pckbport_tag_t t, pckbport_slot_t slot, |
| 546 | pckbport_inputfcn func, void *arg, const char *name) |
| 547 | { |
| 548 | |
| 549 | if (slot >= PCKBPORT_NSLOTS) |
| 550 | panic("pckbport_set_inputhandler: bad slot %d" , slot); |
| 551 | |
| 552 | t->t_ops->t_intr_establish(t->t_cookie, slot); |
| 553 | |
| 554 | t->t_inputhandler[slot] = func; |
| 555 | t->t_inputarg[slot] = arg; |
| 556 | t->t_subname[slot] = name; |
| 557 | } |
| 558 | |
| 559 | void |
| 560 | pckbportintr(pckbport_tag_t t, pckbport_slot_t slot, int data) |
| 561 | { |
| 562 | struct pckbport_slotdata *q; |
| 563 | |
| 564 | q = t->t_slotdata[slot]; |
| 565 | |
| 566 | if (!q) { |
| 567 | /* XXX do something for live insertion? */ |
| 568 | printf("pckbportintr: no dev for slot %d\n" , slot); |
| 569 | return; |
| 570 | } |
| 571 | |
| 572 | if (CMD_IN_QUEUE(q) && pckbport_cmdresponse(t, slot, data)) |
| 573 | return; |
| 574 | |
| 575 | if (t->t_inputhandler[slot]) { |
| 576 | (*t->t_inputhandler[slot])(t->t_inputarg[slot], data); |
| 577 | return; |
| 578 | } |
| 579 | DPRINTF(("%s: slot %d lost %d\n" , __func__, slot, data)); |
| 580 | } |
| 581 | |
| 582 | int |
| 583 | pckbport_cnattach(void *cookie, struct pckbport_accessops const *ops, |
| 584 | pckbport_slot_t slot) |
| 585 | { |
| 586 | int res = 0; |
| 587 | pckbport_tag_t t = &pckbport_cntag; |
| 588 | |
| 589 | callout_init(&t->t_cleanup, 0); |
| 590 | t->t_cookie = cookie; |
| 591 | t->t_ops = ops; |
| 592 | |
| 593 | /* flush */ |
| 594 | pckbport_flush(t, slot); |
| 595 | |
| 596 | #if (NPCKBD > 0) |
| 597 | res = pckbd_cnattach(t, slot); |
| 598 | #elif (NPCKBPORT_MACHDEP_CNATTACH > 0) |
| 599 | res = pckbport_machdep_cnattach(t, slot); |
| 600 | #else |
| 601 | res = ENXIO; |
| 602 | #endif /* NPCKBPORT_MACHDEP_CNATTACH > 0 */ |
| 603 | |
| 604 | if (res == 0) { |
| 605 | t->t_slotdata[slot] = &pckbport_cons_slotdata; |
| 606 | pckbport_init_slotdata(&pckbport_cons_slotdata); |
| 607 | } |
| 608 | |
| 609 | return res; |
| 610 | } |
| 611 | |