1 /* 2 * Driver for Digigram miXart soundcards 3 * 4 * main file with alsa callbacks 5 * 6 * Copyright (c) 2003 by Digigram <alsa@digigram.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23 24 #include <linux/init.h> 25 #include <linux/interrupt.h> 26 #include <linux/pci.h> 27 #include <linux/dma-mapping.h> 28 #include <linux/module.h> 29 #include <linux/mutex.h> 30 #include <linux/slab.h> 31 32 #include <sound/core.h> 33 #include <sound/initval.h> 34 #include <sound/info.h> 35 #include <sound/control.h> 36 #include <sound/pcm.h> 37 #include <sound/pcm_params.h> 38 #include "mixart.h" 39 #include "mixart_hwdep.h" 40 #include "mixart_core.h" 41 #include "mixart_mixer.h" 42 43 #define CARD_NAME "miXart" 44 45 MODULE_AUTHOR("Digigram <alsa@digigram.com>"); 46 MODULE_DESCRIPTION("Digigram " CARD_NAME); 47 MODULE_LICENSE("GPL"); 48 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}"); 49 50 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 51 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 52 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 53 54 module_param_array(index, int, NULL, 0444); 55 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard."); 56 module_param_array(id, charp, NULL, 0444); 57 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard."); 58 module_param_array(enable, bool, NULL, 0444); 59 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard."); 60 61 /* 62 */ 63 64 static DEFINE_PCI_DEVICE_TABLE(snd_mixart_ids) = { 65 { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */ 66 { 0, } 67 }; 68 69 MODULE_DEVICE_TABLE(pci, snd_mixart_ids); 70 71 72 static int mixart_set_pipe_state(struct mixart_mgr *mgr, 73 struct mixart_pipe *pipe, int start) 74 { 75 struct mixart_group_state_req group_state; 76 struct mixart_group_state_resp group_state_resp; 77 struct mixart_msg request; 78 int err; 79 u32 system_msg_uid; 80 81 switch(pipe->status) { 82 case PIPE_RUNNING: 83 case PIPE_CLOCK_SET: 84 if(start) return 0; /* already started */ 85 break; 86 case PIPE_STOPPED: 87 if(!start) return 0; /* already stopped */ 88 break; 89 default: 90 snd_printk(KERN_ERR "error mixart_set_pipe_state called with wrong pipe->status!\n"); 91 return -EINVAL; /* function called with wrong pipe status */ 92 } 93 94 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */ 95 96 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */ 97 98 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD; 99 request.uid = (struct mixart_uid){0,0}; 100 request.data = &system_msg_uid; 101 request.size = sizeof(system_msg_uid); 102 103 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid); 104 if(err) { 105 snd_printk(KERN_ERR "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n"); 106 return err; 107 } 108 109 /* start or stop the pipe (1 pipe) */ 110 111 memset(&group_state, 0, sizeof(group_state)); 112 group_state.pipe_count = 1; 113 group_state.pipe_uid[0] = pipe->group_uid; 114 115 if(start) 116 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET; 117 else 118 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET; 119 120 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/ 121 request.data = &group_state; 122 request.size = sizeof(group_state); 123 124 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp); 125 if (err < 0 || group_state_resp.txx_status != 0) { 126 snd_printk(KERN_ERR "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status); 127 return -EINVAL; 128 } 129 130 if(start) { 131 u32 stat; 132 133 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */ 134 135 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp); 136 if (err < 0 || group_state_resp.txx_status != 0) { 137 snd_printk(KERN_ERR "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status); 138 return -EINVAL; 139 } 140 141 /* in case of start send a synchro top */ 142 143 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD; 144 request.uid = (struct mixart_uid){0,0}; 145 request.data = NULL; 146 request.size = 0; 147 148 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat); 149 if (err < 0 || stat != 0) { 150 snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n", err, stat); 151 return -EINVAL; 152 } 153 154 pipe->status = PIPE_RUNNING; 155 } 156 else /* !start */ 157 pipe->status = PIPE_STOPPED; 158 159 return 0; 160 } 161 162 163 static int mixart_set_clock(struct mixart_mgr *mgr, 164 struct mixart_pipe *pipe, unsigned int rate) 165 { 166 struct mixart_msg request; 167 struct mixart_clock_properties clock_properties; 168 struct mixart_clock_properties_resp clock_prop_resp; 169 int err; 170 171 switch(pipe->status) { 172 case PIPE_CLOCK_SET: 173 break; 174 case PIPE_RUNNING: 175 if(rate != 0) 176 break; 177 default: 178 if(rate == 0) 179 return 0; /* nothing to do */ 180 else { 181 snd_printk(KERN_ERR "error mixart_set_clock(%d) called with wrong pipe->status !\n", rate); 182 return -EINVAL; 183 } 184 } 185 186 memset(&clock_properties, 0, sizeof(clock_properties)); 187 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK; 188 clock_properties.clock_mode = CM_STANDALONE; 189 clock_properties.frequency = rate; 190 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */ 191 clock_properties.uid_caller[0] = pipe->group_uid; 192 193 snd_printdd("mixart_set_clock to %d kHz\n", rate); 194 195 request.message_id = MSG_CLOCK_SET_PROPERTIES; 196 request.uid = mgr->uid_console_manager; 197 request.data = &clock_properties; 198 request.size = sizeof(clock_properties); 199 200 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp); 201 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) { 202 snd_printk(KERN_ERR "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n", err, clock_prop_resp.status, clock_prop_resp.clock_mode); 203 return -EINVAL; 204 } 205 206 if(rate) pipe->status = PIPE_CLOCK_SET; 207 else pipe->status = PIPE_RUNNING; 208 209 return 0; 210 } 211 212 213 /* 214 * Allocate or reference output pipe for analog IOs (pcmp0/1) 215 */ 216 struct mixart_pipe * 217 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, 218 int monitoring) 219 { 220 int stream_count; 221 struct mixart_pipe *pipe; 222 struct mixart_msg request; 223 224 if(capture) { 225 if (pcm_number == MIXART_PCM_ANALOG) { 226 pipe = &(chip->pipe_in_ana); /* analog inputs */ 227 } else { 228 pipe = &(chip->pipe_in_dig); /* digital inputs */ 229 } 230 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP; 231 stream_count = MIXART_CAPTURE_STREAMS; 232 } else { 233 if (pcm_number == MIXART_PCM_ANALOG) { 234 pipe = &(chip->pipe_out_ana); /* analog outputs */ 235 } else { 236 pipe = &(chip->pipe_out_dig); /* digital outputs */ 237 } 238 request.message_id = MSG_STREAM_ADD_INPUT_GROUP; 239 stream_count = MIXART_PLAYBACK_STREAMS; 240 } 241 242 /* a new stream is opened and there are already all streams in use */ 243 if( (monitoring == 0) && (pipe->references >= stream_count) ) { 244 return NULL; 245 } 246 247 /* pipe is not yet defined */ 248 if( pipe->status == PIPE_UNDEFINED ) { 249 int err, i; 250 struct { 251 struct mixart_streaming_group_req sgroup_req; 252 struct mixart_streaming_group sgroup_resp; 253 } *buf; 254 255 snd_printdd("add_ref_pipe audio chip(%d) pcm(%d)\n", chip->chip_idx, pcm_number); 256 257 buf = kmalloc(sizeof(*buf), GFP_KERNEL); 258 if (!buf) 259 return NULL; 260 261 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */ 262 request.data = &buf->sgroup_req; 263 request.size = sizeof(buf->sgroup_req); 264 265 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req)); 266 267 buf->sgroup_req.stream_count = stream_count; 268 buf->sgroup_req.channel_count = 2; 269 buf->sgroup_req.latency = 256; 270 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */ 271 272 for (i=0; i<stream_count; i++) { 273 int j; 274 struct mixart_flowinfo *flowinfo; 275 struct mixart_bufferinfo *bufferinfo; 276 277 /* we don't yet know the format, so config 16 bit pcm audio for instance */ 278 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024; 279 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256; 280 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */ 281 282 /* find the right bufferinfo_array */ 283 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i; 284 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */ 285 286 buf->sgroup_req.flow_entry[i] = j; 287 288 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area; 289 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo)); 290 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */ 291 292 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area; 293 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */ 294 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */ 295 296 /* construct the identifier of the stream buffer received in the interrupts ! */ 297 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i; 298 if(capture) { 299 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK; 300 } 301 } 302 303 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp); 304 if((err < 0) || (buf->sgroup_resp.status != 0)) { 305 snd_printk(KERN_ERR "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n", err, buf->sgroup_resp.status); 306 kfree(buf); 307 return NULL; 308 } 309 310 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */ 311 pipe->stream_count = buf->sgroup_resp.stream_count; 312 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */ 313 314 pipe->status = PIPE_STOPPED; 315 kfree(buf); 316 } 317 318 if(monitoring) pipe->monitoring = 1; 319 else pipe->references++; 320 321 return pipe; 322 } 323 324 325 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, 326 struct mixart_pipe *pipe, int monitoring) 327 { 328 int err = 0; 329 330 if(pipe->status == PIPE_UNDEFINED) 331 return 0; 332 333 if(monitoring) 334 pipe->monitoring = 0; 335 else 336 pipe->references--; 337 338 if((pipe->references <= 0) && (pipe->monitoring == 0)) { 339 340 struct mixart_msg request; 341 struct mixart_delete_group_resp delete_resp; 342 343 /* release the clock */ 344 err = mixart_set_clock( mgr, pipe, 0); 345 if( err < 0 ) { 346 snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n"); 347 } 348 349 /* stop the pipe */ 350 err = mixart_set_pipe_state(mgr, pipe, 0); 351 if( err < 0 ) { 352 snd_printk(KERN_ERR "error stopping pipe!\n"); 353 } 354 355 request.message_id = MSG_STREAM_DELETE_GROUP; 356 request.uid = (struct mixart_uid){0,0}; 357 request.data = &pipe->group_uid; /* the streaming group ! */ 358 request.size = sizeof(pipe->group_uid); 359 360 /* delete the pipe */ 361 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp); 362 if ((err < 0) || (delete_resp.status != 0)) { 363 snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status); 364 } 365 366 pipe->group_uid = (struct mixart_uid){0,0}; 367 pipe->stream_count = 0; 368 pipe->status = PIPE_UNDEFINED; 369 } 370 371 return err; 372 } 373 374 static int mixart_set_stream_state(struct mixart_stream *stream, int start) 375 { 376 struct snd_mixart *chip; 377 struct mixart_stream_state_req stream_state_req; 378 struct mixart_msg request; 379 380 if(!stream->substream) 381 return -EINVAL; 382 383 memset(&stream_state_req, 0, sizeof(stream_state_req)); 384 stream_state_req.stream_count = 1; 385 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid; 386 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number; 387 388 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 389 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET; 390 else 391 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET; 392 393 request.uid = (struct mixart_uid){0,0}; 394 request.data = &stream_state_req; 395 request.size = sizeof(stream_state_req); 396 397 stream->abs_period_elapsed = 0; /* reset stream pos */ 398 stream->buf_periods = 0; 399 stream->buf_period_frag = 0; 400 401 chip = snd_pcm_substream_chip(stream->substream); 402 403 return snd_mixart_send_msg_nonblock(chip->mgr, &request); 404 } 405 406 /* 407 * Trigger callback 408 */ 409 410 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd) 411 { 412 struct mixart_stream *stream = subs->runtime->private_data; 413 414 switch (cmd) { 415 case SNDRV_PCM_TRIGGER_START: 416 417 snd_printdd("SNDRV_PCM_TRIGGER_START\n"); 418 419 /* START_STREAM */ 420 if( mixart_set_stream_state(stream, 1) ) 421 return -EINVAL; 422 423 stream->status = MIXART_STREAM_STATUS_RUNNING; 424 425 break; 426 case SNDRV_PCM_TRIGGER_STOP: 427 428 /* STOP_STREAM */ 429 if( mixart_set_stream_state(stream, 0) ) 430 return -EINVAL; 431 432 stream->status = MIXART_STREAM_STATUS_OPEN; 433 434 snd_printdd("SNDRV_PCM_TRIGGER_STOP\n"); 435 436 break; 437 438 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 439 /* TODO */ 440 stream->status = MIXART_STREAM_STATUS_PAUSE; 441 snd_printdd("SNDRV_PCM_PAUSE_PUSH\n"); 442 break; 443 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 444 /* TODO */ 445 stream->status = MIXART_STREAM_STATUS_RUNNING; 446 snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n"); 447 break; 448 default: 449 return -EINVAL; 450 } 451 return 0; 452 } 453 454 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr) 455 { 456 unsigned long timeout = jiffies + HZ; 457 while (atomic_read(&mgr->msg_processed) > 0) { 458 if (time_after(jiffies, timeout)) { 459 snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n"); 460 return -EBUSY; 461 } 462 schedule_timeout_uninterruptible(1); 463 } 464 return 0; 465 } 466 467 /* 468 * prepare callback for all pcms 469 */ 470 static int snd_mixart_prepare(struct snd_pcm_substream *subs) 471 { 472 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 473 struct mixart_stream *stream = subs->runtime->private_data; 474 475 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */ 476 477 snd_printdd("snd_mixart_prepare\n"); 478 479 mixart_sync_nonblock_events(chip->mgr); 480 481 /* only the first stream can choose the sample rate */ 482 /* the further opened streams will be limited to its frequency (see open) */ 483 if(chip->mgr->ref_count_rate == 1) 484 chip->mgr->sample_rate = subs->runtime->rate; 485 486 /* set the clock only once (first stream) on the same pipe */ 487 if(stream->pipe->references == 1) { 488 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) ) 489 return -EINVAL; 490 } 491 492 return 0; 493 } 494 495 496 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format) 497 { 498 int err; 499 struct snd_mixart *chip; 500 struct mixart_msg request; 501 struct mixart_stream_param_desc stream_param; 502 struct mixart_return_uid resp; 503 504 chip = snd_pcm_substream_chip(stream->substream); 505 506 memset(&stream_param, 0, sizeof(stream_param)); 507 508 stream_param.coding_type = CT_LINEAR; 509 stream_param.number_of_channel = stream->channels; 510 511 stream_param.sampling_freq = chip->mgr->sample_rate; 512 if(stream_param.sampling_freq == 0) 513 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */ 514 515 switch(format){ 516 case SNDRV_PCM_FORMAT_U8: 517 stream_param.sample_type = ST_INTEGER_8; 518 stream_param.sample_size = 8; 519 break; 520 case SNDRV_PCM_FORMAT_S16_LE: 521 stream_param.sample_type = ST_INTEGER_16LE; 522 stream_param.sample_size = 16; 523 break; 524 case SNDRV_PCM_FORMAT_S16_BE: 525 stream_param.sample_type = ST_INTEGER_16BE; 526 stream_param.sample_size = 16; 527 break; 528 case SNDRV_PCM_FORMAT_S24_3LE: 529 stream_param.sample_type = ST_INTEGER_24LE; 530 stream_param.sample_size = 24; 531 break; 532 case SNDRV_PCM_FORMAT_S24_3BE: 533 stream_param.sample_type = ST_INTEGER_24BE; 534 stream_param.sample_size = 24; 535 break; 536 case SNDRV_PCM_FORMAT_FLOAT_LE: 537 stream_param.sample_type = ST_FLOATING_POINT_32LE; 538 stream_param.sample_size = 32; 539 break; 540 case SNDRV_PCM_FORMAT_FLOAT_BE: 541 stream_param.sample_type = ST_FLOATING_POINT_32BE; 542 stream_param.sample_size = 32; 543 break; 544 default: 545 snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n"); 546 return -EINVAL; 547 } 548 549 snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n", 550 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels); 551 552 /* TODO: what else to configure ? */ 553 /* stream_param.samples_per_frame = 2; */ 554 /* stream_param.bytes_per_frame = 4; */ 555 /* stream_param.bytes_per_sample = 2; */ 556 557 stream_param.pipe_count = 1; /* set to 1 */ 558 stream_param.stream_count = 1; /* set to 1 */ 559 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid; 560 stream_param.stream_desc[0].stream_idx = stream->substream->number; 561 562 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM; 563 request.uid = (struct mixart_uid){0,0}; 564 request.data = &stream_param; 565 request.size = sizeof(stream_param); 566 567 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp); 568 if((err < 0) || resp.error_code) { 569 snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code); 570 return -EINVAL; 571 } 572 return 0; 573 } 574 575 576 /* 577 * HW_PARAMS callback for all pcms 578 */ 579 static int snd_mixart_hw_params(struct snd_pcm_substream *subs, 580 struct snd_pcm_hw_params *hw) 581 { 582 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 583 struct mixart_mgr *mgr = chip->mgr; 584 struct mixart_stream *stream = subs->runtime->private_data; 585 snd_pcm_format_t format; 586 int err; 587 int channels; 588 589 /* set up channels */ 590 channels = params_channels(hw); 591 592 /* set up format for the stream */ 593 format = params_format(hw); 594 595 mutex_lock(&mgr->setup_mutex); 596 597 /* update the stream levels */ 598 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) { 599 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG; 600 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) 601 mixart_update_playback_stream_level(chip, is_aes, subs->number); 602 else 603 mixart_update_capture_stream_level( chip, is_aes); 604 } 605 606 stream->channels = channels; 607 608 /* set the format to the board */ 609 err = mixart_set_format(stream, format); 610 if(err < 0) { 611 mutex_unlock(&mgr->setup_mutex); 612 return err; 613 } 614 615 /* allocate buffer */ 616 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw)); 617 618 if (err > 0) { 619 struct mixart_bufferinfo *bufferinfo; 620 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number; 621 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) { 622 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */ 623 } 624 625 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area; 626 bufferinfo[i].buffer_address = subs->runtime->dma_addr; 627 bufferinfo[i].available_length = subs->runtime->dma_bytes; 628 /* bufferinfo[i].buffer_id is already defined */ 629 630 snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i, 631 bufferinfo[i].buffer_address, 632 bufferinfo[i].available_length, 633 subs->number); 634 } 635 mutex_unlock(&mgr->setup_mutex); 636 637 return err; 638 } 639 640 static int snd_mixart_hw_free(struct snd_pcm_substream *subs) 641 { 642 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 643 snd_pcm_lib_free_pages(subs); 644 mixart_sync_nonblock_events(chip->mgr); 645 return 0; 646 } 647 648 649 650 /* 651 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max 652 */ 653 static struct snd_pcm_hardware snd_mixart_analog_caps = 654 { 655 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 656 SNDRV_PCM_INFO_MMAP_VALID | 657 SNDRV_PCM_INFO_PAUSE), 658 .formats = ( SNDRV_PCM_FMTBIT_U8 | 659 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | 660 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | 661 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), 662 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 663 .rate_min = 8000, 664 .rate_max = 48000, 665 .channels_min = 1, 666 .channels_max = 2, 667 .buffer_bytes_max = (32*1024), 668 .period_bytes_min = 256, /* 256 frames U8 mono*/ 669 .period_bytes_max = (16*1024), 670 .periods_min = 2, 671 .periods_max = (32*1024/256), 672 }; 673 674 static struct snd_pcm_hardware snd_mixart_digital_caps = 675 { 676 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 677 SNDRV_PCM_INFO_MMAP_VALID | 678 SNDRV_PCM_INFO_PAUSE), 679 .formats = ( SNDRV_PCM_FMTBIT_U8 | 680 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | 681 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | 682 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), 683 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, 684 .rate_min = 32000, 685 .rate_max = 48000, 686 .channels_min = 1, 687 .channels_max = 2, 688 .buffer_bytes_max = (32*1024), 689 .period_bytes_min = 256, /* 256 frames U8 mono*/ 690 .period_bytes_max = (16*1024), 691 .periods_min = 2, 692 .periods_max = (32*1024/256), 693 }; 694 695 696 static int snd_mixart_playback_open(struct snd_pcm_substream *subs) 697 { 698 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 699 struct mixart_mgr *mgr = chip->mgr; 700 struct snd_pcm_runtime *runtime = subs->runtime; 701 struct snd_pcm *pcm = subs->pcm; 702 struct mixart_stream *stream; 703 struct mixart_pipe *pipe; 704 int err = 0; 705 int pcm_number; 706 707 mutex_lock(&mgr->setup_mutex); 708 709 if ( pcm == chip->pcm ) { 710 pcm_number = MIXART_PCM_ANALOG; 711 runtime->hw = snd_mixart_analog_caps; 712 } else { 713 snd_BUG_ON(pcm != chip->pcm_dig); 714 pcm_number = MIXART_PCM_DIGITAL; 715 runtime->hw = snd_mixart_digital_caps; 716 } 717 snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); 718 719 /* get stream info */ 720 stream = &(chip->playback_stream[pcm_number][subs->number]); 721 722 if (stream->status != MIXART_STREAM_STATUS_FREE){ 723 /* streams in use */ 724 snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); 725 err = -EBUSY; 726 goto _exit_open; 727 } 728 729 /* get pipe pointer (out pipe) */ 730 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0); 731 732 if (pipe == NULL) { 733 err = -EINVAL; 734 goto _exit_open; 735 } 736 737 /* start the pipe if necessary */ 738 err = mixart_set_pipe_state(chip->mgr, pipe, 1); 739 if( err < 0 ) { 740 snd_printk(KERN_ERR "error starting pipe!\n"); 741 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); 742 err = -EINVAL; 743 goto _exit_open; 744 } 745 746 stream->pipe = pipe; 747 stream->pcm_number = pcm_number; 748 stream->status = MIXART_STREAM_STATUS_OPEN; 749 stream->substream = subs; 750 stream->channels = 0; /* not configured yet */ 751 752 runtime->private_data = stream; 753 754 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); 755 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); 756 757 /* if a sample rate is already used, another stream cannot change */ 758 if(mgr->ref_count_rate++) { 759 if(mgr->sample_rate) { 760 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; 761 } 762 } 763 764 _exit_open: 765 mutex_unlock(&mgr->setup_mutex); 766 767 return err; 768 } 769 770 771 static int snd_mixart_capture_open(struct snd_pcm_substream *subs) 772 { 773 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 774 struct mixart_mgr *mgr = chip->mgr; 775 struct snd_pcm_runtime *runtime = subs->runtime; 776 struct snd_pcm *pcm = subs->pcm; 777 struct mixart_stream *stream; 778 struct mixart_pipe *pipe; 779 int err = 0; 780 int pcm_number; 781 782 mutex_lock(&mgr->setup_mutex); 783 784 if ( pcm == chip->pcm ) { 785 pcm_number = MIXART_PCM_ANALOG; 786 runtime->hw = snd_mixart_analog_caps; 787 } else { 788 snd_BUG_ON(pcm != chip->pcm_dig); 789 pcm_number = MIXART_PCM_DIGITAL; 790 runtime->hw = snd_mixart_digital_caps; 791 } 792 793 runtime->hw.channels_min = 2; /* for instance, no mono */ 794 795 snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); 796 797 /* get stream info */ 798 stream = &(chip->capture_stream[pcm_number]); 799 800 if (stream->status != MIXART_STREAM_STATUS_FREE){ 801 /* streams in use */ 802 snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); 803 err = -EBUSY; 804 goto _exit_open; 805 } 806 807 /* get pipe pointer (in pipe) */ 808 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0); 809 810 if (pipe == NULL) { 811 err = -EINVAL; 812 goto _exit_open; 813 } 814 815 /* start the pipe if necessary */ 816 err = mixart_set_pipe_state(chip->mgr, pipe, 1); 817 if( err < 0 ) { 818 snd_printk(KERN_ERR "error starting pipe!\n"); 819 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); 820 err = -EINVAL; 821 goto _exit_open; 822 } 823 824 stream->pipe = pipe; 825 stream->pcm_number = pcm_number; 826 stream->status = MIXART_STREAM_STATUS_OPEN; 827 stream->substream = subs; 828 stream->channels = 0; /* not configured yet */ 829 830 runtime->private_data = stream; 831 832 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); 833 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); 834 835 /* if a sample rate is already used, another stream cannot change */ 836 if(mgr->ref_count_rate++) { 837 if(mgr->sample_rate) { 838 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; 839 } 840 } 841 842 _exit_open: 843 mutex_unlock(&mgr->setup_mutex); 844 845 return err; 846 } 847 848 849 850 static int snd_mixart_close(struct snd_pcm_substream *subs) 851 { 852 struct snd_mixart *chip = snd_pcm_substream_chip(subs); 853 struct mixart_mgr *mgr = chip->mgr; 854 struct mixart_stream *stream = subs->runtime->private_data; 855 856 mutex_lock(&mgr->setup_mutex); 857 858 snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number); 859 860 /* sample rate released */ 861 if(--mgr->ref_count_rate == 0) { 862 mgr->sample_rate = 0; 863 } 864 865 /* delete pipe */ 866 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) { 867 868 snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number); 869 } 870 871 stream->pipe = NULL; 872 stream->status = MIXART_STREAM_STATUS_FREE; 873 stream->substream = NULL; 874 875 mutex_unlock(&mgr->setup_mutex); 876 return 0; 877 } 878 879 880 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs) 881 { 882 struct snd_pcm_runtime *runtime = subs->runtime; 883 struct mixart_stream *stream = runtime->private_data; 884 885 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag); 886 } 887 888 889 890 static struct snd_pcm_ops snd_mixart_playback_ops = { 891 .open = snd_mixart_playback_open, 892 .close = snd_mixart_close, 893 .ioctl = snd_pcm_lib_ioctl, 894 .prepare = snd_mixart_prepare, 895 .hw_params = snd_mixart_hw_params, 896 .hw_free = snd_mixart_hw_free, 897 .trigger = snd_mixart_trigger, 898 .pointer = snd_mixart_stream_pointer, 899 }; 900 901 static struct snd_pcm_ops snd_mixart_capture_ops = { 902 .open = snd_mixart_capture_open, 903 .close = snd_mixart_close, 904 .ioctl = snd_pcm_lib_ioctl, 905 .prepare = snd_mixart_prepare, 906 .hw_params = snd_mixart_hw_params, 907 .hw_free = snd_mixart_hw_free, 908 .trigger = snd_mixart_trigger, 909 .pointer = snd_mixart_stream_pointer, 910 }; 911 912 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm) 913 { 914 #if 0 915 struct snd_pcm_substream *subs; 916 int stream; 917 918 for (stream = 0; stream < 2; stream++) { 919 int idx = 0; 920 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++) 921 /* set up the unique device id with the chip index */ 922 subs->dma_device.id = subs->pcm->device << 16 | 923 subs->stream << 8 | (subs->number + 1) | 924 (chip->chip_idx + 1) << 24; 925 } 926 #endif 927 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 928 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024); 929 } 930 931 /* 932 */ 933 static int snd_mixart_pcm_analog(struct snd_mixart *chip) 934 { 935 int err; 936 struct snd_pcm *pcm; 937 char name[32]; 938 939 sprintf(name, "miXart analog %d", chip->chip_idx); 940 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG, 941 MIXART_PLAYBACK_STREAMS, 942 MIXART_CAPTURE_STREAMS, &pcm)) < 0) { 943 snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx); 944 return err; 945 } 946 947 pcm->private_data = chip; 948 949 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); 950 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); 951 952 pcm->info_flags = 0; 953 strcpy(pcm->name, name); 954 955 preallocate_buffers(chip, pcm); 956 957 chip->pcm = pcm; 958 return 0; 959 } 960 961 962 /* 963 */ 964 static int snd_mixart_pcm_digital(struct snd_mixart *chip) 965 { 966 int err; 967 struct snd_pcm *pcm; 968 char name[32]; 969 970 sprintf(name, "miXart AES/EBU %d", chip->chip_idx); 971 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL, 972 MIXART_PLAYBACK_STREAMS, 973 MIXART_CAPTURE_STREAMS, &pcm)) < 0) { 974 snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx); 975 return err; 976 } 977 978 pcm->private_data = chip; 979 980 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); 981 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); 982 983 pcm->info_flags = 0; 984 strcpy(pcm->name, name); 985 986 preallocate_buffers(chip, pcm); 987 988 chip->pcm_dig = pcm; 989 return 0; 990 } 991 992 static int snd_mixart_chip_free(struct snd_mixart *chip) 993 { 994 kfree(chip); 995 return 0; 996 } 997 998 static int snd_mixart_chip_dev_free(struct snd_device *device) 999 { 1000 struct snd_mixart *chip = device->device_data; 1001 return snd_mixart_chip_free(chip); 1002 } 1003 1004 1005 /* 1006 */ 1007 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx) 1008 { 1009 int err; 1010 struct snd_mixart *chip; 1011 static struct snd_device_ops ops = { 1012 .dev_free = snd_mixart_chip_dev_free, 1013 }; 1014 1015 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1016 if (! chip) { 1017 snd_printk(KERN_ERR "cannot allocate chip\n"); 1018 return -ENOMEM; 1019 } 1020 1021 chip->card = card; 1022 chip->chip_idx = idx; 1023 chip->mgr = mgr; 1024 1025 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 1026 snd_mixart_chip_free(chip); 1027 return err; 1028 } 1029 1030 mgr->chip[idx] = chip; 1031 snd_card_set_dev(card, &mgr->pci->dev); 1032 1033 return 0; 1034 } 1035 1036 int snd_mixart_create_pcm(struct snd_mixart* chip) 1037 { 1038 int err; 1039 1040 err = snd_mixart_pcm_analog(chip); 1041 if (err < 0) 1042 return err; 1043 1044 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) { 1045 1046 err = snd_mixart_pcm_digital(chip); 1047 if (err < 0) 1048 return err; 1049 } 1050 return err; 1051 } 1052 1053 1054 /* 1055 * release all the cards assigned to a manager instance 1056 */ 1057 static int snd_mixart_free(struct mixart_mgr *mgr) 1058 { 1059 unsigned int i; 1060 1061 for (i = 0; i < mgr->num_cards; i++) { 1062 if (mgr->chip[i]) 1063 snd_card_free(mgr->chip[i]->card); 1064 } 1065 1066 /* stop mailbox */ 1067 snd_mixart_exit_mailbox(mgr); 1068 1069 /* release irq */ 1070 if (mgr->irq >= 0) 1071 free_irq(mgr->irq, mgr); 1072 1073 /* reset board if some firmware was loaded */ 1074 if(mgr->dsp_loaded) { 1075 snd_mixart_reset_board(mgr); 1076 snd_printdd("reset miXart !\n"); 1077 } 1078 1079 /* release the i/o ports */ 1080 for (i = 0; i < 2; i++) { 1081 if (mgr->mem[i].virt) 1082 iounmap(mgr->mem[i].virt); 1083 } 1084 pci_release_regions(mgr->pci); 1085 1086 /* free flowarray */ 1087 if(mgr->flowinfo.area) { 1088 snd_dma_free_pages(&mgr->flowinfo); 1089 mgr->flowinfo.area = NULL; 1090 } 1091 /* free bufferarray */ 1092 if(mgr->bufferinfo.area) { 1093 snd_dma_free_pages(&mgr->bufferinfo); 1094 mgr->bufferinfo.area = NULL; 1095 } 1096 1097 pci_disable_device(mgr->pci); 1098 kfree(mgr); 1099 return 0; 1100 } 1101 1102 /* 1103 * proc interface 1104 */ 1105 1106 /* 1107 mixart_BA0 proc interface for BAR 0 - read callback 1108 */ 1109 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry, 1110 void *file_private_data, 1111 struct file *file, char __user *buf, 1112 size_t count, loff_t pos) 1113 { 1114 struct mixart_mgr *mgr = entry->private_data; 1115 1116 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */ 1117 if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count)) 1118 return -EFAULT; 1119 return count; 1120 } 1121 1122 /* 1123 mixart_BA1 proc interface for BAR 1 - read callback 1124 */ 1125 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry, 1126 void *file_private_data, 1127 struct file *file, char __user *buf, 1128 size_t count, loff_t pos) 1129 { 1130 struct mixart_mgr *mgr = entry->private_data; 1131 1132 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */ 1133 if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count)) 1134 return -EFAULT; 1135 return count; 1136 } 1137 1138 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = { 1139 .read = snd_mixart_BA0_read, 1140 }; 1141 1142 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = { 1143 .read = snd_mixart_BA1_read, 1144 }; 1145 1146 1147 static void snd_mixart_proc_read(struct snd_info_entry *entry, 1148 struct snd_info_buffer *buffer) 1149 { 1150 struct snd_mixart *chip = entry->private_data; 1151 u32 ref; 1152 1153 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx); 1154 1155 /* stats available when embedded OS is running */ 1156 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) { 1157 snd_iprintf(buffer, "- hardware -\n"); 1158 switch (chip->mgr->board_type ) { 1159 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break; 1160 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break; 1161 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break; 1162 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break; 1163 } 1164 1165 snd_iprintf(buffer, "- system load -\n"); 1166 1167 /* get perf reference */ 1168 1169 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET)); 1170 1171 if (ref) { 1172 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref; 1173 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref; 1174 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref; 1175 1176 snd_iprintf(buffer, "\tstreaming : %d\n", streaming); 1177 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox); 1178 snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr); 1179 } 1180 } /* endif elf loaded */ 1181 } 1182 1183 static void snd_mixart_proc_init(struct snd_mixart *chip) 1184 { 1185 struct snd_info_entry *entry; 1186 1187 /* text interface to read perf and temp meters */ 1188 if (! snd_card_proc_new(chip->card, "board_info", &entry)) { 1189 entry->private_data = chip; 1190 entry->c.text.read = snd_mixart_proc_read; 1191 } 1192 1193 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) { 1194 entry->content = SNDRV_INFO_CONTENT_DATA; 1195 entry->private_data = chip->mgr; 1196 entry->c.ops = &snd_mixart_proc_ops_BA0; 1197 entry->size = MIXART_BA0_SIZE; 1198 } 1199 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) { 1200 entry->content = SNDRV_INFO_CONTENT_DATA; 1201 entry->private_data = chip->mgr; 1202 entry->c.ops = &snd_mixart_proc_ops_BA1; 1203 entry->size = MIXART_BA1_SIZE; 1204 } 1205 } 1206 /* end of proc interface */ 1207 1208 1209 /* 1210 * probe function - creates the card manager 1211 */ 1212 static int snd_mixart_probe(struct pci_dev *pci, 1213 const struct pci_device_id *pci_id) 1214 { 1215 static int dev; 1216 struct mixart_mgr *mgr; 1217 unsigned int i; 1218 int err; 1219 size_t size; 1220 1221 /* 1222 */ 1223 if (dev >= SNDRV_CARDS) 1224 return -ENODEV; 1225 if (! enable[dev]) { 1226 dev++; 1227 return -ENOENT; 1228 } 1229 1230 /* enable PCI device */ 1231 if ((err = pci_enable_device(pci)) < 0) 1232 return err; 1233 pci_set_master(pci); 1234 1235 /* check if we can restrict PCI DMA transfers to 32 bits */ 1236 if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) { 1237 snd_printk(KERN_ERR "architecture does not support 32bit PCI busmaster DMA\n"); 1238 pci_disable_device(pci); 1239 return -ENXIO; 1240 } 1241 1242 /* 1243 */ 1244 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); 1245 if (! mgr) { 1246 pci_disable_device(pci); 1247 return -ENOMEM; 1248 } 1249 1250 mgr->pci = pci; 1251 mgr->irq = -1; 1252 1253 /* resource assignment */ 1254 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) { 1255 kfree(mgr); 1256 pci_disable_device(pci); 1257 return err; 1258 } 1259 for (i = 0; i < 2; i++) { 1260 mgr->mem[i].phys = pci_resource_start(pci, i); 1261 mgr->mem[i].virt = pci_ioremap_bar(pci, i); 1262 if (!mgr->mem[i].virt) { 1263 printk(KERN_ERR "unable to remap resource 0x%lx\n", 1264 mgr->mem[i].phys); 1265 snd_mixart_free(mgr); 1266 return -EBUSY; 1267 } 1268 } 1269 1270 if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED, 1271 KBUILD_MODNAME, mgr)) { 1272 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 1273 snd_mixart_free(mgr); 1274 return -EBUSY; 1275 } 1276 mgr->irq = pci->irq; 1277 1278 sprintf(mgr->shortname, "Digigram miXart"); 1279 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq); 1280 1281 /* ISR spinlock */ 1282 spin_lock_init(&mgr->lock); 1283 1284 /* init mailbox */ 1285 mgr->msg_fifo_readptr = 0; 1286 mgr->msg_fifo_writeptr = 0; 1287 1288 spin_lock_init(&mgr->msg_lock); 1289 mutex_init(&mgr->msg_mutex); 1290 init_waitqueue_head(&mgr->msg_sleep); 1291 atomic_set(&mgr->msg_processed, 0); 1292 1293 /* init setup mutex*/ 1294 mutex_init(&mgr->setup_mutex); 1295 1296 /* init message taslket */ 1297 tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr); 1298 1299 /* card assignment */ 1300 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */ 1301 for (i = 0; i < mgr->num_cards; i++) { 1302 struct snd_card *card; 1303 char tmpid[16]; 1304 int idx; 1305 1306 if (index[dev] < 0) 1307 idx = index[dev]; 1308 else 1309 idx = index[dev] + i; 1310 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i); 1311 err = snd_card_create(idx, tmpid, THIS_MODULE, 0, &card); 1312 1313 if (err < 0) { 1314 snd_printk(KERN_ERR "cannot allocate the card %d\n", i); 1315 snd_mixart_free(mgr); 1316 return err; 1317 } 1318 1319 strcpy(card->driver, CARD_NAME); 1320 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i); 1321 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i); 1322 1323 if ((err = snd_mixart_create(mgr, card, i)) < 0) { 1324 snd_card_free(card); 1325 snd_mixart_free(mgr); 1326 return err; 1327 } 1328 1329 if(i==0) { 1330 /* init proc interface only for chip0 */ 1331 snd_mixart_proc_init(mgr->chip[i]); 1332 } 1333 1334 if ((err = snd_card_register(card)) < 0) { 1335 snd_mixart_free(mgr); 1336 return err; 1337 } 1338 } 1339 1340 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */ 1341 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE; 1342 1343 /* create array of streaminfo */ 1344 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS * 1345 sizeof(struct mixart_flowinfo)) ); 1346 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1347 size, &mgr->flowinfo) < 0) { 1348 snd_mixart_free(mgr); 1349 return -ENOMEM; 1350 } 1351 /* init streaminfo_array */ 1352 memset(mgr->flowinfo.area, 0, size); 1353 1354 /* create array of bufferinfo */ 1355 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS * 1356 sizeof(struct mixart_bufferinfo)) ); 1357 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1358 size, &mgr->bufferinfo) < 0) { 1359 snd_mixart_free(mgr); 1360 return -ENOMEM; 1361 } 1362 /* init bufferinfo_array */ 1363 memset(mgr->bufferinfo.area, 0, size); 1364 1365 /* set up firmware */ 1366 err = snd_mixart_setup_firmware(mgr); 1367 if (err < 0) { 1368 snd_mixart_free(mgr); 1369 return err; 1370 } 1371 1372 pci_set_drvdata(pci, mgr); 1373 dev++; 1374 return 0; 1375 } 1376 1377 static void snd_mixart_remove(struct pci_dev *pci) 1378 { 1379 snd_mixart_free(pci_get_drvdata(pci)); 1380 pci_set_drvdata(pci, NULL); 1381 } 1382 1383 static struct pci_driver mixart_driver = { 1384 .name = KBUILD_MODNAME, 1385 .id_table = snd_mixart_ids, 1386 .probe = snd_mixart_probe, 1387 .remove = snd_mixart_remove, 1388 }; 1389 1390 module_pci_driver(mixart_driver); 1391