usb_ah.c revision 7492:2387323b838f
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 27/* 28 * USB audio hid streams module - processes hid data 29 * from HID driver and converts to a format that SADA 30 * understands. The stack looks like this : 31 * hid --> usb_ah --> usb_ac --> audio framework 32 * usb_ac just acts as a passthrough layer for the converted data. 33 * 34 * During open, usb_ah gets the parser handle from hid and gets 35 * the hardware information passed as report descriptor. Then 36 * it finds out the relevant usages and stores the bitmap and other 37 * information in internal data structure. When a button is pressed 38 * to. say, increase/decrease the volume, a report is generated and 39 * hid sends that data up through the streams. usb_ah, upon getting 40 * this information and with the prior knowledge about the bitmap 41 * for each button, calculates the value and sends up to SADA 42 * through usb_ac. SADA in turn sends a command down to speaker to 43 * increase the volume of the speaker that is managed by usb_ac. 44 */ 45#include <sys/usb/usba.h> 46#include <sys/usb/clients/hid/hid.h> 47#include <sys/usb/clients/hidparser/hidparser.h> 48#include <sys/stropts.h> 49#include <sys/strsun.h> 50 51#include <sys/audio.h> 52#include <sys/audiovar.h> 53#include <sys/audio/audio_support.h> 54#include <sys/audio/audio_src.h> 55#include <sys/mixer.h> 56#include <sys/audio/audio_mixer.h> 57#include <sys/audio/am_src1.h> 58 59#include <sys/usb/clients/audio/usb_audio.h> 60#include <sys/usb/clients/audio/usb_mixer.h> 61#include <sys/usb/clients/audio/usb_ah/usb_ah.h> 62 63/* debugging information */ 64uint_t usb_ah_errmask = (uint_t)PRINT_MASK_ALL; 65uint_t usb_ah_errlevel = USB_LOG_L4; 66static usb_log_handle_t usb_ah_log_handle; 67 68/* 69 * Internal Function Prototypes 70 */ 71static void usb_ah_mctl_receive(queue_t *, mblk_t *); 72static mblk_t *usb_ah_cp_mblk(mblk_t *); 73static void usb_ah_timeout(void *); 74static void usb_ah_repeat_send(usb_ah_state_t *, usb_ah_button_descr_t *, 75 struct iocblk, char *, int); 76static void usb_ah_cancel_timeout(usb_ah_state_t *); 77static void usb_ah_check_usage_send_data(usb_ah_state_t *, mblk_t *); 78static int usb_ah_get_cooked_rd(usb_ah_state_t *); 79 80/* stream qinit functions defined here */ 81static int usb_ah_open(queue_t *, dev_t *, int, int, cred_t *); 82static int usb_ah_close(queue_t *, int, cred_t *); 83static void usb_ah_wput(queue_t *, mblk_t *); 84static void usb_ah_rput(queue_t *, mblk_t *); 85 86/* 87 * Global Variables 88 */ 89int usb_ah_rpt_tick; 90 91static struct streamtab usb_ah_info; 92static struct fmodsw fsw = { 93 "usb_ah", 94 &usb_ah_info, 95 D_NEW | D_MP | D_MTPERMOD 96}; 97 98/* 99 * Module linkage information for the kernel. 100 */ 101extern struct mod_ops mod_strmodops; 102 103static struct modlstrmod modlstrmod = { 104 &mod_strmodops, 105 "USB audio hid streams", 106 &fsw 107}; 108 109static struct modlinkage modlinkage = { 110 MODREV_1, 111 (void *)&modlstrmod, 112 NULL 113}; 114 115/* 116 * Warlock is not aware of the automatic locking mechanisms for 117 * streams modules. 118 * Since warlock is not aware of the streams perimeters, these notes 119 * have been added. 120 */ 121_NOTE(SCHEME_PROTECTS_DATA("unique per call", iocblk)) 122_NOTE(SCHEME_PROTECTS_DATA("unique per call", datab)) 123_NOTE(SCHEME_PROTECTS_DATA("unique per call", msgb)) 124_NOTE(SCHEME_PROTECTS_DATA("unique per call", queue)) 125 126/* 127 * Module qinit functions 128 */ 129static struct module_info usb_ah_minfo = { 130 0, /* module id number */ 131 "usb_ah", /* module name */ 132 0, /* min packet size accepted */ 133 INFPSZ, /* max packet size accepted */ 134 2048, /* hi-water mark */ 135 128 /* lo-water mark */ 136 }; 137 138/* read side for key data and ioctl replies */ 139static struct qinit usb_ah_rinit = { 140 (int (*)())usb_ah_rput, 141 (int (*)())NULL, /* service not used */ 142 usb_ah_open, 143 usb_ah_close, 144 (int (*)())NULL, 145 &usb_ah_minfo 146 }; 147 148/* write side for ioctls */ 149static struct qinit usb_ah_winit = { 150 (int (*)())usb_ah_wput, 151 (int (*)())NULL, 152 usb_ah_open, 153 usb_ah_close, 154 (int (*)())NULL, 155 &usb_ah_minfo 156 }; 157 158static struct streamtab usb_ah_info = { 159 &usb_ah_rinit, 160 &usb_ah_winit, 161 NULL, /* for muxes */ 162 NULL, /* for muxes */ 163}; 164 165 166int 167_init() 168{ 169 int rval = mod_install(&modlinkage); 170 171 if (rval == 0) { 172 usb_ah_rpt_tick = drv_usectohz(USB_AH_TIMEOUT); 173 usb_ah_log_handle = usb_alloc_log_hdl(NULL, "usb_ah", 174 &usb_ah_errlevel, &usb_ah_errmask, NULL, 0); 175 } 176 177 return (rval); 178} 179 180 181int 182_fini() 183{ 184 int rval = mod_remove(&modlinkage); 185 186 if (rval == 0) { 187 usb_free_log_hdl(usb_ah_log_handle); 188 } 189 190 return (rval); 191} 192 193 194int 195_info(struct modinfo *modinfop) 196{ 197 return (mod_info(&modlinkage, modinfop)); 198} 199 200 201/* 202 * usb_ah_open : 203 * Open a usb audio hid device 204 */ 205/* ARGSUSED */ 206static int 207usb_ah_open(queue_t *q, dev_t *devp, int oflag, int sflag, cred_t *crp) 208{ 209 usb_ah_state_t *usb_ahd; 210 hidparser_packet_info_t hpack; 211 struct iocblk mctlmsg; 212 mblk_t *mctl_ptr; 213 214 if (q->q_ptr) { 215 USB_DPRINTF_L3(PRINT_MASK_OPEN, usb_ah_log_handle, 216 "usb_ah_open already opened"); 217 218 return (0); /* already opened */ 219 } 220 221 switch (sflag) { 222 case MODOPEN: 223 224 break; 225 case CLONEOPEN: 226 USB_DPRINTF_L3(PRINT_MASK_OPEN, usb_ah_log_handle, 227 "usb_ah_open: Clone open not supported"); 228 229 /* FALLTHRU */ 230 default: 231 232 return (EINVAL); 233 } 234 235 usb_ahd = kmem_zalloc(sizeof (usb_ah_state_t), KM_SLEEP); 236 237 USB_DPRINTF_L3(PRINT_MASK_OPEN, usb_ah_log_handle, 238 "usb_ah_state= 0x%p", (void *)usb_ahd); 239 240 mutex_init(&usb_ahd->usb_ah_mutex, NULL, MUTEX_DRIVER, NULL); 241 242 /* 243 * Set up private data. 244 */ 245 usb_ahd->usb_ah_readq = q; 246 usb_ahd->usb_ah_writeq = WR(q); 247 248 /* 249 * Set up queue pointers, so that the "put" procedure will accept 250 * the reply to the "ioctl" message we send down. 251 */ 252 q->q_ptr = (caddr_t)usb_ahd; 253 WR(q)->q_ptr = (caddr_t)usb_ahd; 254 255 qprocson(q); 256 257 /* request hid report descriptor from HID */ 258 mctlmsg.ioc_cmd = HID_GET_PARSER_HANDLE; 259 mctlmsg.ioc_count = 0; 260 mctl_ptr = usba_mk_mctl(mctlmsg, NULL, 0); 261 if (mctl_ptr == NULL) { 262 /* failure to allocate M_CTL message */ 263 qprocsoff(q); 264 mutex_destroy(&usb_ahd->usb_ah_mutex); 265 kmem_free(usb_ahd, sizeof (*usb_ahd)); 266 267 return (ENOMEM); 268 } 269 270 putnext(usb_ahd->usb_ah_writeq, mctl_ptr); 271 272 /* 273 * Now that signal has been sent, wait for report descriptor. 274 * Cleanup if user signals in the mean time 275 */ 276 usb_ahd->usb_ah_flags |= USB_AH_QWAIT; 277 while (usb_ahd->usb_ah_flags & USB_AH_QWAIT) { 278 279 if (qwait_sig(q) == 0) { 280 usb_ahd->usb_ah_flags = 0; 281 qprocsoff(q); 282 mutex_destroy(&usb_ahd->usb_ah_mutex); 283 kmem_free(usb_ahd, sizeof (*usb_ahd)); 284 285 return (EINTR); 286 } 287 } 288 289 if (usb_ahd->usb_ah_report_descr != NULL) { 290 hidparser_find_max_packet_size_from_report_descriptor( 291 usb_ahd->usb_ah_report_descr, &hpack); 292 293 /* round up to the nearest byte */ 294 usb_ahd->usb_ah_packet_size = (hpack.max_packet_size + 7) / 8; 295 296 if (hpack.report_id == HID_REPORT_ID_UNDEFINED) { 297 usb_ahd->usb_ah_uses_report_ids = 0; 298 usb_ahd->usb_ah_report_id = HID_REPORT_ID_UNDEFINED; 299 } else { 300 usb_ahd->usb_ah_uses_report_ids = 1; 301 usb_ahd->usb_ah_report_id = hpack.report_id; 302 /* add more more byte for report id */ 303 usb_ahd->usb_ah_packet_size++; 304 } 305 306 if (usb_ah_get_cooked_rd(usb_ahd) != USB_SUCCESS) { 307 qprocsoff(q); 308 mutex_destroy(&usb_ahd->usb_ah_mutex); 309 kmem_free(usb_ahd, sizeof (*usb_ahd)); 310 311 return (EIO); 312 } 313 } else { 314 USB_DPRINTF_L2(PRINT_MASK_OPEN, usb_ah_log_handle, 315 "usb_ah: Invalid Report Descriptor Tree."); 316 317 qprocsoff(q); 318 mutex_destroy(&usb_ahd->usb_ah_mutex); 319 kmem_free(usb_ahd, sizeof (*usb_ahd)); 320 321 return (EIO); 322 } 323 324 usb_ahd->usb_ah_flags |= USB_AH_OPEN; 325 326 USB_DPRINTF_L3(PRINT_MASK_OPEN, usb_ah_log_handle, 327 "usb_ah_open exiting"); 328 329 return (0); 330} 331 332 333/* 334 * usb_ah_close : 335 * Close a audio hid device 336 */ 337/* ARGSUSED1 */ 338static int 339usb_ah_close(register queue_t *q, int flag, cred_t *crp) 340{ 341 usb_ah_state_t *usb_ahd = (usb_ah_state_t *)q->q_ptr; 342 343 mutex_enter(&usb_ahd->usb_ah_mutex); 344 345 /* 346 * Since we're about to destroy our private data, turn off 347 * our open flag first, so we don't accept any more input 348 * and try to use that data. 349 */ 350 usb_ahd->usb_ah_flags = 0; 351 usb_ah_cancel_timeout(usb_ahd); 352 353 flushq(q, FLUSHALL); 354 flushq(WR(q), FLUSHALL); 355 356 mutex_exit(&usb_ahd->usb_ah_mutex); 357 358 qprocsoff(q); 359 q->q_ptr = NULL; 360 WR(q)->q_ptr = NULL; 361 362 mutex_destroy(&usb_ahd->usb_ah_mutex); 363 kmem_free(usb_ahd, sizeof (usb_ah_state_t)); 364 365 USB_DPRINTF_L4(PRINT_MASK_CLOSE, usb_ah_log_handle, 366 "usb_ah_close exiting"); 367 368 return (0); 369} 370 371 372/* 373 * usb_ah_wput : 374 * usb_ah module output queue put procedure: handles M_IOCTL 375 * messages. 376 */ 377static void 378usb_ah_wput(register queue_t *q, register mblk_t *mp) 379{ 380 381 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 382 "usb_ah_wput entering"); 383 384 switch (mp->b_datap->db_type) { 385 case M_FLUSH: 386 if (*mp->b_rptr & FLUSHW) { 387 flushq(q, FLUSHDATA); 388 } 389 if (*mp->b_rptr & FLUSHR) { 390 flushq(RD(q), FLUSHDATA); 391 } 392 393 break; 394 default: 395 break; 396 } 397 398 putnext(q, mp); 399 400 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 401 "usb_ah_wput exiting:3"); 402} 403 404 405/* 406 * usb_ah_rput : 407 * Put procedure for input from driver end of stream (read queue). 408 */ 409static void 410usb_ah_rput(register queue_t *q, register mblk_t *mp) 411{ 412 usb_ah_state_t *usb_ahd; 413 414 usb_ahd = (usb_ah_state_t *)q->q_ptr; 415 416 USB_DPRINTF_L3(PRINT_MASK_ALL, usb_ah_log_handle, 417 "usb_ah_rput: Begin, usb_ah state=0x%p, q=0x%p, mp=0x%p", 418 (void *)usb_ahd, (void *)q, (void *)mp); 419 420 if (usb_ahd == 0) { 421 freemsg(mp); /* nobody's listening */ 422 423 return; 424 } 425 426 switch (mp->b_datap->db_type) { 427 case M_FLUSH: 428 if (*mp->b_rptr & FLUSHW) 429 flushq(WR(q), FLUSHDATA); 430 if (*mp->b_rptr & FLUSHR) 431 flushq(q, FLUSHDATA); 432 freemsg(mp); 433 434 return; 435 case M_DATA: 436 if (!(usb_ahd->usb_ah_flags & USB_AH_OPEN)) { 437 freemsg(mp); /* not ready to listen */ 438 439 return; 440 } else if (MBLKL(mp) == usb_ahd->usb_ah_packet_size) { 441 442 /* 443 * Process this report if the device doesn't have 444 * multiple reports, or this is the one we support 445 */ 446 if ((usb_ahd->usb_ah_report_id == 447 HID_REPORT_ID_UNDEFINED) || 448 (usb_ahd->usb_ah_report_id == (int)*mp->b_rptr)) { 449 /* we now have a complete packet */ 450 usb_ah_check_usage_send_data(usb_ahd, mp); 451 } else { 452 USB_DPRINTF_L2(PRINT_MASK_ALL, 453 usb_ah_log_handle, 454 "usb_ah_rput: skipping report with " 455 "id= %d", *mp->b_rptr); 456 457 /* skip the reports we don't support */ 458 freemsg(mp); 459 } 460 } else { 461 /* filter out spurious packets */ 462 freemsg(mp); 463 } 464 465 break; 466 case M_CTL: 467 usb_ah_mctl_receive(q, mp); 468 469 return; 470 case M_IOCACK: 471 case M_IOCNAK: 472 putnext(q, mp); 473 474 return; 475 default: 476 putnext(q, mp); 477 478 return; 479 } 480} 481 482 483/* 484 * usb_ah_mctl_receive : 485 * Handle M_CTL messages from hid. If we don't understand 486 * the command, send it up. 487 */ 488static void 489usb_ah_mctl_receive(register queue_t *q, register mblk_t *mp) 490{ 491 register usb_ah_state_t *usb_ahd = (usb_ah_state_t *)q->q_ptr; 492 register struct iocblk *iocp; 493 caddr_t data; 494 495 iocp = (struct iocblk *)mp->b_rptr; 496 if (mp->b_cont != NULL) 497 data = (caddr_t)mp->b_cont->b_rptr; 498 499 switch (iocp->ioc_cmd) { 500 case HID_GET_PARSER_HANDLE: 501 USB_DPRINTF_L3(PRINT_MASK_ALL, usb_ah_log_handle, 502 "usb_ah_mctl_receive HID_GET_PARSER_HANDL mctl"); 503 if ((data != NULL) && 504 (iocp->ioc_count == sizeof (hidparser_handle_t)) && 505 (MBLKL(mp->b_cont) == iocp->ioc_count)) { 506 usb_ahd->usb_ah_report_descr = 507 *(hidparser_handle_t *)data; 508 } else { 509 usb_ahd->usb_ah_report_descr = NULL; 510 } 511 freemsg(mp); 512 usb_ahd->usb_ah_flags &= ~USB_AH_QWAIT; 513 514 break; 515 case HID_DISCONNECT_EVENT : 516 case HID_POWER_OFF: 517 USB_DPRINTF_L3(PRINT_MASK_ALL, usb_ah_log_handle, 518 "usb_ah_mctl_receive HID_DISCONNECT_EVENT/HID_POWER_OFF"); 519 520 /* Cancel any auto repeat keys */ 521 usb_ah_cancel_timeout(usb_ahd); 522 523 freemsg(mp); 524 525 break; 526 case HID_CONNECT_EVENT: 527 case HID_FULL_POWER: 528 USB_DPRINTF_L3(PRINT_MASK_ALL, usb_ah_log_handle, 529 "usb_ah_mctl_receive HID_CONNECT_EVENT/HID_FULL_POWER"); 530 freemsg(mp); 531 532 break; 533 default: 534 putnext(q, mp); 535 } 536} 537 538 539/* 540 * usb_ah_repeat_send 541 * This function sends a M_CTL message to usb_ac repeatedly 542 */ 543static void 544usb_ah_repeat_send(usb_ah_state_t *usb_ahd, usb_ah_button_descr_t *bd, 545 struct iocblk mctlmsg, char *buf, int len) 546{ 547 mblk_t *dup_mp; 548 549 bd->mblk = usba_mk_mctl(mctlmsg, buf, len); 550 551 if (bd->mblk != NULL) { 552 dup_mp = usb_ah_cp_mblk(bd->mblk); 553 554 if (dup_mp != NULL) { 555 mutex_exit(&usb_ahd->usb_ah_mutex); 556 putnext(usb_ahd->usb_ah_readq, dup_mp); 557 mutex_enter(&usb_ahd->usb_ah_mutex); 558 } 559 560 usb_ahd->usb_ah_cur_bd = bd; 561 usb_ahd->usb_ah_tid = qtimeout(usb_ahd->usb_ah_readq, 562 usb_ah_timeout, bd, usb_ah_rpt_tick); 563 } 564} 565 566 567/* 568 * usb_ah_timeout: 569 * Timeout routine to handle autorepeat of buttons 570 */ 571static void 572usb_ah_timeout(void *addr) 573{ 574 usb_ah_button_descr_t *bd; 575 usb_ah_state_t *usb_ahd; 576 mblk_t *dup_mp; 577 578 bd = (usb_ah_button_descr_t *)addr; 579 usb_ahd = (usb_ah_state_t *)bd->uahp; 580 581 mutex_enter(&usb_ahd->usb_ah_mutex); 582 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 583 "usb_ah_timeout: tid=0x%p", usb_ahd->usb_ah_tid); 584 585 /* 586 * If a release event still hasn't reached, tid will be non-zero 587 * Send another press event up 588 */ 589 if (usb_ahd->usb_ah_tid) { 590 dup_mp = usb_ah_cp_mblk(bd->mblk); 591 if (dup_mp != NULL) { 592 mutex_exit(&usb_ahd->usb_ah_mutex); 593 putnext(usb_ahd->usb_ah_readq, dup_mp); 594 mutex_enter(&usb_ahd->usb_ah_mutex); 595 } 596 if (bd->mblk != NULL) { 597 usb_ahd->usb_ah_cur_bd = bd; 598 usb_ahd->usb_ah_tid = qtimeout(usb_ahd->usb_ah_readq, 599 usb_ah_timeout, bd, usb_ah_rpt_tick); 600 } 601 } 602 mutex_exit(&usb_ahd->usb_ah_mutex); 603} 604 605 606/* 607 * usb_ah_cancel_timeout: 608 * Cancels the timeout for autorepeat sequence 609 */ 610static void 611usb_ah_cancel_timeout(usb_ah_state_t *usb_ahd) 612{ 613 queue_t *rq = usb_ahd->usb_ah_readq; 614 615 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 616 "usb_ah_cancel_timeout: tid=0x%p", usb_ahd->usb_ah_tid); 617 618 if (usb_ahd->usb_ah_tid) { 619 (void) quntimeout(rq, usb_ahd->usb_ah_tid); 620 usb_ahd->usb_ah_tid = 0; 621 usb_ahd->usb_ah_cur_bd->pressed = 0; 622 freemsg(usb_ahd->usb_ah_cur_bd->mblk); 623 usb_ahd->usb_ah_cur_bd = NULL; 624 } 625} 626 627 628/* 629 * usb_ah_cp_mblk 630 * Create an identical 2-mblk as the one passed through argument 631 */ 632static mblk_t * 633usb_ah_cp_mblk(mblk_t *mp) 634{ 635 mblk_t *bp1, *bp2; 636 int len; 637 struct iocblk *iocp; 638 639 if ((bp1 = allocb((int)sizeof (struct iocblk), BPRI_HI)) == NULL) { 640 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 641 "usb_ah_cp_mblk: 1st allocb failed"); 642 643 return (NULL); 644 } 645 646 iocp = (struct iocblk *)mp->b_rptr; 647 bcopy(iocp, (struct iocblk *)bp1->b_datap->db_base, 648 sizeof (struct iocblk)); 649 650 bp1->b_datap->db_type = M_CTL; 651 bp1->b_wptr += sizeof (struct iocblk); 652 653 ASSERT(mp->b_cont != NULL); 654 len = MBLKL(mp->b_cont); 655 656 if (mp->b_cont->b_datap->db_base) { 657 if ((bp2 = allocb(len, BPRI_HI)) == NULL) { 658 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 659 "usb_ah_cp_mblk: 2nd allocb failed"); 660 freemsg(bp1); 661 662 return (NULL); 663 } 664 bp1->b_cont = bp2; 665 bcopy(mp->b_cont->b_datap->db_base, bp2->b_datap->db_base, len); 666 bp2->b_wptr += len; 667 } 668 669 return (bp1); 670} 671 672 673/* 674 * usb_ah_get_cooked_rd: 675 * Cook the report descriptor by making hidparser calls and 676 * put them in a library 677 */ 678static int 679usb_ah_get_cooked_rd(usb_ah_state_t *usb_ahd) 680{ 681 uint_t location; 682 uint_t offset, i; 683 usb_ah_button_descr_t *bd; 684 hidparser_usage_info_t *ud; 685 usb_ah_rpt_t *rpt; 686 hidparser_rpt_t *hid_rpt; 687 688 rpt = &(usb_ahd->usb_ah_report[USB_AH_INPUT_RPT]); 689 hid_rpt = &(usb_ahd->usb_ah_report[USB_AH_INPUT_RPT].hid_rpt); 690 691 if (hidparser_get_usage_list_in_order( 692 usb_ahd->usb_ah_report_descr, 693 usb_ahd->usb_ah_report_id, 694 HIDPARSER_ITEM_INPUT, 695 hid_rpt) == HIDPARSER_FAILURE) { 696 USB_DPRINTF_L3(PRINT_MASK_OPEN, 697 usb_ah_log_handle, "getting usage list in order failed"); 698 699 return (USB_FAILURE); 700 } 701 702 USB_DPRINTF_L4(PRINT_MASK_OPEN, usb_ah_log_handle, 703 "usb_ah_open:no. of usages=%d", hid_rpt->no_of_usages); 704 705 location = offset = 0; 706 for (i = 0; i < hid_rpt->no_of_usages; i++) { 707 USB_DPRINTF_L4(PRINT_MASK_OPEN, 708 usb_ah_log_handle, "collection=0x%x, usage=0x%x/0x%x", 709 hid_rpt->usage_descr[i].collection_usage, 710 hid_rpt->usage_descr[i].usage_page, 711 hid_rpt->usage_descr[i].usage_id); 712 ud = &(hid_rpt->usage_descr[i]); 713 bd = &(rpt->button_descr[i]); 714 715 /* Initialize the variables */ 716 hid_rpt->main_item_value = 0; 717 718 /* get input items for each usages */ 719 (void) hidparser_get_main_item_data_descr( 720 usb_ahd->usb_ah_report_descr, 721 usb_ahd->usb_ah_report_id, 722 HIDPARSER_ITEM_INPUT, 723 hid_rpt->usage_descr[i].usage_page, 724 hid_rpt->usage_descr[i].usage_id, 725 &hid_rpt->main_item_value); 726 727 bd->location = location; 728 bd->offset = offset; 729 bd->no_of_bits = ud->rptsz; 730 731 USB_DPRINTF_L4(PRINT_MASK_ALL, usb_ah_log_handle, 732 "byte location %d, bit offset %d", bd->location, 733 bd->offset); 734 offset += ud->rptsz; 735 while (offset >= 8) { 736 location++; 737 offset -= 8; 738 } 739 740 } 741 742 return (USB_SUCCESS); 743} 744 745 746/* 747 * usb_ah_check_usage_send_data: 748 * Check if a button is pressed, if so, send the appropriate 749 * message up 750 */ 751static void 752usb_ah_check_usage_send_data(usb_ah_state_t *usb_ahd, mblk_t *mp) 753{ 754 int i, mask; 755 char val; 756 hidparser_rpt_t *hid_rpt; 757 usb_ah_button_descr_t *bd; 758 usb_ah_rpt_t *rpt; 759 uchar_t *ptr; 760 struct iocblk mctlmsg; 761 mblk_t *mctl_ptr; 762 763 mutex_enter(&usb_ahd->usb_ah_mutex); 764 rpt = &(usb_ahd->usb_ah_report[USB_AH_INPUT_RPT]); 765 hid_rpt = &(usb_ahd->usb_ah_report[USB_AH_INPUT_RPT].hid_rpt); 766 767 for (i = 0; i < hid_rpt->no_of_usages; i++) { 768 769 bd = &(rpt->button_descr[i]); 770 bd->uahp = (void *)usb_ahd; 771 772 USB_DPRINTF_L4(PRINT_MASK_ALL, 773 usb_ah_log_handle, "usb_ah_check_usage_send_data:" 774 "uses_report_id=%d, location=%d, offset=%d, " 775 "no_of_bits=%d", usb_ahd->usb_ah_uses_report_ids, 776 bd->location, bd->offset, bd->no_of_bits); 777 778 ptr = mp->b_rptr + bd->location; 779 780 /* XXX workaround */ 781 if (ptr > mp->b_wptr) { 782 USB_DPRINTF_L2(PRINT_MASK_ALL, 783 usb_ah_log_handle, "usb_ah_check_usage_send_data:" 784 "bad report: location=%d", bd->location); 785 786 continue; 787 } 788 789 ASSERT(ptr <= mp->b_wptr); 790 791 mask = ((1 << bd->no_of_bits) - 1); 792 val = (char)((*ptr >> bd->offset) & mask); 793 794 USB_DPRINTF_L4(PRINT_MASK_ALL, 795 usb_ah_log_handle, "usb_ah_check_usage_send_data:" 796 "usage=0x%x, " 797 "mask=0x%x, val=0x%x", hid_rpt->usage_descr[i].usage_id, 798 mask, val); 799 800 if (hid_rpt->usage_descr[i].collection_usage != 801 HID_CONSUMER_CONTROL) { 802 /* 803 * skip item in unknown collections, for now. 804 * this includes the volume and mute controls 805 * in the microphone collection on plantronics 806 * dsp-300 device with 3.xx firmware. 807 */ 808 continue; 809 } 810 811 switch (hid_rpt->usage_descr[i].usage_id) { 812 case HID_CONSUMER_VOL: /* LC */ 813 if (val != 0) { 814 if (hid_rpt->main_item_value & 815 HID_MAIN_ITEM_RELATIVE) { 816 /* Relative volume */ 817 mctlmsg.ioc_cmd = USB_AUDIO_VOL_CHANGE; 818 mctlmsg.ioc_count = sizeof (uint_t); 819 mctl_ptr = usba_mk_mctl(mctlmsg, 820 &val, mctlmsg.ioc_count); 821 if (mctl_ptr != NULL) { 822 mutex_exit(&usb_ahd-> 823 usb_ah_mutex); 824 putnext(usb_ahd->usb_ah_readq, 825 mctl_ptr); 826 mutex_enter(&usb_ahd-> 827 usb_ah_mutex); 828 } 829 } else { 830 USB_DPRINTF_L2(PRINT_MASK_ALL, 831 usb_ah_log_handle, "usb_ah_rput:" 832 "Absolute volume change " 833 "not supported"); 834 } 835 } 836 837 break; 838 case HID_CONSUMER_VOL_DECR: /* RTC */ 839 if (val != 0) { 840 val = -val; 841 } 842 /* FALLTHRU */ 843 case HID_CONSUMER_VOL_INCR: /* RTC */ 844 if (val != 0) { 845 846 /* 847 * If another autorepeating button has been 848 * pressed, cancel that one first 849 */ 850 usb_ah_cancel_timeout(usb_ahd); 851 mctlmsg.ioc_cmd = USB_AUDIO_VOL_CHANGE; 852 mctlmsg.ioc_count = sizeof (uint_t); 853 bd->pressed = 1; 854 usb_ah_repeat_send(usb_ahd, bd, 855 mctlmsg, (char *)&val, mctlmsg.ioc_count); 856 } else { 857 /* Do not steal other's release event */ 858 if (bd->pressed) { 859 usb_ah_cancel_timeout(usb_ahd); 860 } 861 } 862 863 break; 864 case HID_CONSUMER_MUTE: /* OOC */ 865 if (val) { 866 mctlmsg.ioc_cmd = USB_AUDIO_MUTE; 867 mctlmsg.ioc_count = sizeof (uint_t); 868 mctl_ptr = usba_mk_mctl(mctlmsg, 869 &val, mctlmsg.ioc_count); 870 if (mctl_ptr != NULL) { 871 mutex_exit(&usb_ahd->usb_ah_mutex); 872 putnext(usb_ahd->usb_ah_readq, 873 mctl_ptr); 874 mutex_enter(&usb_ahd->usb_ah_mutex); 875 } 876 877 } 878 879 break; 880 case HID_CONSUMER_BASS: 881 case HID_CONSUMER_TREBLE: 882 default: 883 884 break; 885 } 886 } 887 mutex_exit(&usb_ahd->usb_ah_mutex); 888 freemsg(mp); 889} 890