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Merge remote-tracking branch 'mailbox/mailbox-for-next'
[deliverable/linux.git] / sound / pci / mixart / mixart.c
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 const struct pci_device_id 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 dev_err(&mgr->pci->dev,
91 "error mixart_set_pipe_state called with wrong pipe->status!\n");
92 return -EINVAL; /* function called with wrong pipe status */
93 }
94
95 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
96
97 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
98
99 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
100 request.uid = (struct mixart_uid){0,0};
101 request.data = &system_msg_uid;
102 request.size = sizeof(system_msg_uid);
103
104 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
105 if(err) {
106 dev_err(&mgr->pci->dev,
107 "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
108 return err;
109 }
110
111 /* start or stop the pipe (1 pipe) */
112
113 memset(&group_state, 0, sizeof(group_state));
114 group_state.pipe_count = 1;
115 group_state.pipe_uid[0] = pipe->group_uid;
116
117 if(start)
118 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
119 else
120 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
121
122 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
123 request.data = &group_state;
124 request.size = sizeof(group_state);
125
126 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
127 if (err < 0 || group_state_resp.txx_status != 0) {
128 dev_err(&mgr->pci->dev,
129 "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
130 err, group_state_resp.txx_status);
131 return -EINVAL;
132 }
133
134 if(start) {
135 u32 stat = 0;
136
137 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
138
139 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
140 if (err < 0 || group_state_resp.txx_status != 0) {
141 dev_err(&mgr->pci->dev,
142 "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
143 err, group_state_resp.txx_status);
144 return -EINVAL;
145 }
146
147 /* in case of start send a synchro top */
148
149 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
150 request.uid = (struct mixart_uid){0,0};
151 request.data = NULL;
152 request.size = 0;
153
154 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
155 if (err < 0 || stat != 0) {
156 dev_err(&mgr->pci->dev,
157 "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
158 err, stat);
159 return -EINVAL;
160 }
161
162 pipe->status = PIPE_RUNNING;
163 }
164 else /* !start */
165 pipe->status = PIPE_STOPPED;
166
167 return 0;
168 }
169
170
171 static int mixart_set_clock(struct mixart_mgr *mgr,
172 struct mixart_pipe *pipe, unsigned int rate)
173 {
174 struct mixart_msg request;
175 struct mixart_clock_properties clock_properties;
176 struct mixart_clock_properties_resp clock_prop_resp;
177 int err;
178
179 switch(pipe->status) {
180 case PIPE_CLOCK_SET:
181 break;
182 case PIPE_RUNNING:
183 if(rate != 0)
184 break;
185 default:
186 if(rate == 0)
187 return 0; /* nothing to do */
188 else {
189 dev_err(&mgr->pci->dev,
190 "error mixart_set_clock(%d) called with wrong pipe->status !\n",
191 rate);
192 return -EINVAL;
193 }
194 }
195
196 memset(&clock_properties, 0, sizeof(clock_properties));
197 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
198 clock_properties.clock_mode = CM_STANDALONE;
199 clock_properties.frequency = rate;
200 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
201 clock_properties.uid_caller[0] = pipe->group_uid;
202
203 dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
204
205 request.message_id = MSG_CLOCK_SET_PROPERTIES;
206 request.uid = mgr->uid_console_manager;
207 request.data = &clock_properties;
208 request.size = sizeof(clock_properties);
209
210 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
211 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
212 dev_err(&mgr->pci->dev,
213 "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
214 err, clock_prop_resp.status, clock_prop_resp.clock_mode);
215 return -EINVAL;
216 }
217
218 if(rate) pipe->status = PIPE_CLOCK_SET;
219 else pipe->status = PIPE_RUNNING;
220
221 return 0;
222 }
223
224
225 /*
226 * Allocate or reference output pipe for analog IOs (pcmp0/1)
227 */
228 struct mixart_pipe *
229 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
230 int monitoring)
231 {
232 int stream_count;
233 struct mixart_pipe *pipe;
234 struct mixart_msg request;
235
236 if(capture) {
237 if (pcm_number == MIXART_PCM_ANALOG) {
238 pipe = &(chip->pipe_in_ana); /* analog inputs */
239 } else {
240 pipe = &(chip->pipe_in_dig); /* digital inputs */
241 }
242 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
243 stream_count = MIXART_CAPTURE_STREAMS;
244 } else {
245 if (pcm_number == MIXART_PCM_ANALOG) {
246 pipe = &(chip->pipe_out_ana); /* analog outputs */
247 } else {
248 pipe = &(chip->pipe_out_dig); /* digital outputs */
249 }
250 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
251 stream_count = MIXART_PLAYBACK_STREAMS;
252 }
253
254 /* a new stream is opened and there are already all streams in use */
255 if( (monitoring == 0) && (pipe->references >= stream_count) ) {
256 return NULL;
257 }
258
259 /* pipe is not yet defined */
260 if( pipe->status == PIPE_UNDEFINED ) {
261 int err, i;
262 struct {
263 struct mixart_streaming_group_req sgroup_req;
264 struct mixart_streaming_group sgroup_resp;
265 } *buf;
266
267 dev_dbg(chip->card->dev,
268 "add_ref_pipe audio chip(%d) pcm(%d)\n",
269 chip->chip_idx, pcm_number);
270
271 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
272 if (!buf)
273 return NULL;
274
275 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
276 request.data = &buf->sgroup_req;
277 request.size = sizeof(buf->sgroup_req);
278
279 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
280
281 buf->sgroup_req.stream_count = stream_count;
282 buf->sgroup_req.channel_count = 2;
283 buf->sgroup_req.latency = 256;
284 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
285
286 for (i=0; i<stream_count; i++) {
287 int j;
288 struct mixart_flowinfo *flowinfo;
289 struct mixart_bufferinfo *bufferinfo;
290
291 /* we don't yet know the format, so config 16 bit pcm audio for instance */
292 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
293 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
294 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
295
296 /* find the right bufferinfo_array */
297 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
298 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
299
300 buf->sgroup_req.flow_entry[i] = j;
301
302 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
303 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
304 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
305
306 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
307 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
308 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
309
310 /* construct the identifier of the stream buffer received in the interrupts ! */
311 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
312 if(capture) {
313 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
314 }
315 }
316
317 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
318 if((err < 0) || (buf->sgroup_resp.status != 0)) {
319 dev_err(chip->card->dev,
320 "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
321 err, buf->sgroup_resp.status);
322 kfree(buf);
323 return NULL;
324 }
325
326 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
327 pipe->stream_count = buf->sgroup_resp.stream_count;
328 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
329
330 pipe->status = PIPE_STOPPED;
331 kfree(buf);
332 }
333
334 if(monitoring) pipe->monitoring = 1;
335 else pipe->references++;
336
337 return pipe;
338 }
339
340
341 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
342 struct mixart_pipe *pipe, int monitoring)
343 {
344 int err = 0;
345
346 if(pipe->status == PIPE_UNDEFINED)
347 return 0;
348
349 if(monitoring)
350 pipe->monitoring = 0;
351 else
352 pipe->references--;
353
354 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
355
356 struct mixart_msg request;
357 struct mixart_delete_group_resp delete_resp;
358
359 /* release the clock */
360 err = mixart_set_clock( mgr, pipe, 0);
361 if( err < 0 ) {
362 dev_err(&mgr->pci->dev,
363 "mixart_set_clock(0) return error!\n");
364 }
365
366 /* stop the pipe */
367 err = mixart_set_pipe_state(mgr, pipe, 0);
368 if( err < 0 ) {
369 dev_err(&mgr->pci->dev, "error stopping pipe!\n");
370 }
371
372 request.message_id = MSG_STREAM_DELETE_GROUP;
373 request.uid = (struct mixart_uid){0,0};
374 request.data = &pipe->group_uid; /* the streaming group ! */
375 request.size = sizeof(pipe->group_uid);
376
377 /* delete the pipe */
378 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
379 if ((err < 0) || (delete_resp.status != 0)) {
380 dev_err(&mgr->pci->dev,
381 "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
382 err, delete_resp.status);
383 }
384
385 pipe->group_uid = (struct mixart_uid){0,0};
386 pipe->stream_count = 0;
387 pipe->status = PIPE_UNDEFINED;
388 }
389
390 return err;
391 }
392
393 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
394 {
395 struct snd_mixart *chip;
396 struct mixart_stream_state_req stream_state_req;
397 struct mixart_msg request;
398
399 if(!stream->substream)
400 return -EINVAL;
401
402 memset(&stream_state_req, 0, sizeof(stream_state_req));
403 stream_state_req.stream_count = 1;
404 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
405 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
406
407 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
408 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
409 else
410 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
411
412 request.uid = (struct mixart_uid){0,0};
413 request.data = &stream_state_req;
414 request.size = sizeof(stream_state_req);
415
416 stream->abs_period_elapsed = 0; /* reset stream pos */
417 stream->buf_periods = 0;
418 stream->buf_period_frag = 0;
419
420 chip = snd_pcm_substream_chip(stream->substream);
421
422 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
423 }
424
425 /*
426 * Trigger callback
427 */
428
429 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
430 {
431 struct mixart_stream *stream = subs->runtime->private_data;
432
433 switch (cmd) {
434 case SNDRV_PCM_TRIGGER_START:
435
436 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
437
438 /* START_STREAM */
439 if( mixart_set_stream_state(stream, 1) )
440 return -EINVAL;
441
442 stream->status = MIXART_STREAM_STATUS_RUNNING;
443
444 break;
445 case SNDRV_PCM_TRIGGER_STOP:
446
447 /* STOP_STREAM */
448 if( mixart_set_stream_state(stream, 0) )
449 return -EINVAL;
450
451 stream->status = MIXART_STREAM_STATUS_OPEN;
452
453 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
454
455 break;
456
457 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
458 /* TODO */
459 stream->status = MIXART_STREAM_STATUS_PAUSE;
460 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
461 break;
462 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
463 /* TODO */
464 stream->status = MIXART_STREAM_STATUS_RUNNING;
465 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
466 break;
467 default:
468 return -EINVAL;
469 }
470 return 0;
471 }
472
473 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
474 {
475 unsigned long timeout = jiffies + HZ;
476 while (atomic_read(&mgr->msg_processed) > 0) {
477 if (time_after(jiffies, timeout)) {
478 dev_err(&mgr->pci->dev,
479 "mixart: cannot process nonblock events!\n");
480 return -EBUSY;
481 }
482 schedule_timeout_uninterruptible(1);
483 }
484 return 0;
485 }
486
487 /*
488 * prepare callback for all pcms
489 */
490 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
491 {
492 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
493 struct mixart_stream *stream = subs->runtime->private_data;
494
495 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
496
497 dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
498
499 mixart_sync_nonblock_events(chip->mgr);
500
501 /* only the first stream can choose the sample rate */
502 /* the further opened streams will be limited to its frequency (see open) */
503 if(chip->mgr->ref_count_rate == 1)
504 chip->mgr->sample_rate = subs->runtime->rate;
505
506 /* set the clock only once (first stream) on the same pipe */
507 if(stream->pipe->references == 1) {
508 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
509 return -EINVAL;
510 }
511
512 return 0;
513 }
514
515
516 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
517 {
518 int err;
519 struct snd_mixart *chip;
520 struct mixart_msg request;
521 struct mixart_stream_param_desc stream_param;
522 struct mixart_return_uid resp;
523
524 chip = snd_pcm_substream_chip(stream->substream);
525
526 memset(&stream_param, 0, sizeof(stream_param));
527
528 stream_param.coding_type = CT_LINEAR;
529 stream_param.number_of_channel = stream->channels;
530
531 stream_param.sampling_freq = chip->mgr->sample_rate;
532 if(stream_param.sampling_freq == 0)
533 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
534
535 switch(format){
536 case SNDRV_PCM_FORMAT_U8:
537 stream_param.sample_type = ST_INTEGER_8;
538 stream_param.sample_size = 8;
539 break;
540 case SNDRV_PCM_FORMAT_S16_LE:
541 stream_param.sample_type = ST_INTEGER_16LE;
542 stream_param.sample_size = 16;
543 break;
544 case SNDRV_PCM_FORMAT_S16_BE:
545 stream_param.sample_type = ST_INTEGER_16BE;
546 stream_param.sample_size = 16;
547 break;
548 case SNDRV_PCM_FORMAT_S24_3LE:
549 stream_param.sample_type = ST_INTEGER_24LE;
550 stream_param.sample_size = 24;
551 break;
552 case SNDRV_PCM_FORMAT_S24_3BE:
553 stream_param.sample_type = ST_INTEGER_24BE;
554 stream_param.sample_size = 24;
555 break;
556 case SNDRV_PCM_FORMAT_FLOAT_LE:
557 stream_param.sample_type = ST_FLOATING_POINT_32LE;
558 stream_param.sample_size = 32;
559 break;
560 case SNDRV_PCM_FORMAT_FLOAT_BE:
561 stream_param.sample_type = ST_FLOATING_POINT_32BE;
562 stream_param.sample_size = 32;
563 break;
564 default:
565 dev_err(chip->card->dev,
566 "error mixart_set_format() : unknown format\n");
567 return -EINVAL;
568 }
569
570 dev_dbg(chip->card->dev,
571 "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
572 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
573
574 /* TODO: what else to configure ? */
575 /* stream_param.samples_per_frame = 2; */
576 /* stream_param.bytes_per_frame = 4; */
577 /* stream_param.bytes_per_sample = 2; */
578
579 stream_param.pipe_count = 1; /* set to 1 */
580 stream_param.stream_count = 1; /* set to 1 */
581 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
582 stream_param.stream_desc[0].stream_idx = stream->substream->number;
583
584 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
585 request.uid = (struct mixart_uid){0,0};
586 request.data = &stream_param;
587 request.size = sizeof(stream_param);
588
589 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
590 if((err < 0) || resp.error_code) {
591 dev_err(chip->card->dev,
592 "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
593 err, resp.error_code);
594 return -EINVAL;
595 }
596 return 0;
597 }
598
599
600 /*
601 * HW_PARAMS callback for all pcms
602 */
603 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
604 struct snd_pcm_hw_params *hw)
605 {
606 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
607 struct mixart_mgr *mgr = chip->mgr;
608 struct mixart_stream *stream = subs->runtime->private_data;
609 snd_pcm_format_t format;
610 int err;
611 int channels;
612
613 /* set up channels */
614 channels = params_channels(hw);
615
616 /* set up format for the stream */
617 format = params_format(hw);
618
619 mutex_lock(&mgr->setup_mutex);
620
621 /* update the stream levels */
622 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
623 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
624 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
625 mixart_update_playback_stream_level(chip, is_aes, subs->number);
626 else
627 mixart_update_capture_stream_level( chip, is_aes);
628 }
629
630 stream->channels = channels;
631
632 /* set the format to the board */
633 err = mixart_set_format(stream, format);
634 if(err < 0) {
635 mutex_unlock(&mgr->setup_mutex);
636 return err;
637 }
638
639 /* allocate buffer */
640 err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
641
642 if (err > 0) {
643 struct mixart_bufferinfo *bufferinfo;
644 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
645 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
646 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
647 }
648
649 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
650 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
651 bufferinfo[i].available_length = subs->runtime->dma_bytes;
652 /* bufferinfo[i].buffer_id is already defined */
653
654 dev_dbg(chip->card->dev,
655 "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
656 i, bufferinfo[i].buffer_address,
657 bufferinfo[i].available_length,
658 subs->number);
659 }
660 mutex_unlock(&mgr->setup_mutex);
661
662 return err;
663 }
664
665 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
666 {
667 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
668 snd_pcm_lib_free_pages(subs);
669 mixart_sync_nonblock_events(chip->mgr);
670 return 0;
671 }
672
673
674
675 /*
676 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
677 */
678 static struct snd_pcm_hardware snd_mixart_analog_caps =
679 {
680 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
681 SNDRV_PCM_INFO_MMAP_VALID |
682 SNDRV_PCM_INFO_PAUSE),
683 .formats = ( SNDRV_PCM_FMTBIT_U8 |
684 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
685 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
686 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
687 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
688 .rate_min = 8000,
689 .rate_max = 48000,
690 .channels_min = 1,
691 .channels_max = 2,
692 .buffer_bytes_max = (32*1024),
693 .period_bytes_min = 256, /* 256 frames U8 mono*/
694 .period_bytes_max = (16*1024),
695 .periods_min = 2,
696 .periods_max = (32*1024/256),
697 };
698
699 static struct snd_pcm_hardware snd_mixart_digital_caps =
700 {
701 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
702 SNDRV_PCM_INFO_MMAP_VALID |
703 SNDRV_PCM_INFO_PAUSE),
704 .formats = ( SNDRV_PCM_FMTBIT_U8 |
705 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
706 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
707 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
708 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
709 .rate_min = 32000,
710 .rate_max = 48000,
711 .channels_min = 1,
712 .channels_max = 2,
713 .buffer_bytes_max = (32*1024),
714 .period_bytes_min = 256, /* 256 frames U8 mono*/
715 .period_bytes_max = (16*1024),
716 .periods_min = 2,
717 .periods_max = (32*1024/256),
718 };
719
720
721 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
722 {
723 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
724 struct mixart_mgr *mgr = chip->mgr;
725 struct snd_pcm_runtime *runtime = subs->runtime;
726 struct snd_pcm *pcm = subs->pcm;
727 struct mixart_stream *stream;
728 struct mixart_pipe *pipe;
729 int err = 0;
730 int pcm_number;
731
732 mutex_lock(&mgr->setup_mutex);
733
734 if ( pcm == chip->pcm ) {
735 pcm_number = MIXART_PCM_ANALOG;
736 runtime->hw = snd_mixart_analog_caps;
737 } else {
738 snd_BUG_ON(pcm != chip->pcm_dig);
739 pcm_number = MIXART_PCM_DIGITAL;
740 runtime->hw = snd_mixart_digital_caps;
741 }
742 dev_dbg(chip->card->dev,
743 "snd_mixart_playback_open C%d/P%d/Sub%d\n",
744 chip->chip_idx, pcm_number, subs->number);
745
746 /* get stream info */
747 stream = &(chip->playback_stream[pcm_number][subs->number]);
748
749 if (stream->status != MIXART_STREAM_STATUS_FREE){
750 /* streams in use */
751 dev_err(chip->card->dev,
752 "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
753 chip->chip_idx, pcm_number, subs->number);
754 err = -EBUSY;
755 goto _exit_open;
756 }
757
758 /* get pipe pointer (out pipe) */
759 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
760
761 if (pipe == NULL) {
762 err = -EINVAL;
763 goto _exit_open;
764 }
765
766 /* start the pipe if necessary */
767 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
768 if( err < 0 ) {
769 dev_err(chip->card->dev, "error starting pipe!\n");
770 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
771 err = -EINVAL;
772 goto _exit_open;
773 }
774
775 stream->pipe = pipe;
776 stream->pcm_number = pcm_number;
777 stream->status = MIXART_STREAM_STATUS_OPEN;
778 stream->substream = subs;
779 stream->channels = 0; /* not configured yet */
780
781 runtime->private_data = stream;
782
783 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
784 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
785
786 /* if a sample rate is already used, another stream cannot change */
787 if(mgr->ref_count_rate++) {
788 if(mgr->sample_rate) {
789 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
790 }
791 }
792
793 _exit_open:
794 mutex_unlock(&mgr->setup_mutex);
795
796 return err;
797 }
798
799
800 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
801 {
802 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
803 struct mixart_mgr *mgr = chip->mgr;
804 struct snd_pcm_runtime *runtime = subs->runtime;
805 struct snd_pcm *pcm = subs->pcm;
806 struct mixart_stream *stream;
807 struct mixart_pipe *pipe;
808 int err = 0;
809 int pcm_number;
810
811 mutex_lock(&mgr->setup_mutex);
812
813 if ( pcm == chip->pcm ) {
814 pcm_number = MIXART_PCM_ANALOG;
815 runtime->hw = snd_mixart_analog_caps;
816 } else {
817 snd_BUG_ON(pcm != chip->pcm_dig);
818 pcm_number = MIXART_PCM_DIGITAL;
819 runtime->hw = snd_mixart_digital_caps;
820 }
821
822 runtime->hw.channels_min = 2; /* for instance, no mono */
823
824 dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
825 chip->chip_idx, pcm_number, subs->number);
826
827 /* get stream info */
828 stream = &(chip->capture_stream[pcm_number]);
829
830 if (stream->status != MIXART_STREAM_STATUS_FREE){
831 /* streams in use */
832 dev_err(chip->card->dev,
833 "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
834 chip->chip_idx, pcm_number, subs->number);
835 err = -EBUSY;
836 goto _exit_open;
837 }
838
839 /* get pipe pointer (in pipe) */
840 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
841
842 if (pipe == NULL) {
843 err = -EINVAL;
844 goto _exit_open;
845 }
846
847 /* start the pipe if necessary */
848 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
849 if( err < 0 ) {
850 dev_err(chip->card->dev, "error starting pipe!\n");
851 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
852 err = -EINVAL;
853 goto _exit_open;
854 }
855
856 stream->pipe = pipe;
857 stream->pcm_number = pcm_number;
858 stream->status = MIXART_STREAM_STATUS_OPEN;
859 stream->substream = subs;
860 stream->channels = 0; /* not configured yet */
861
862 runtime->private_data = stream;
863
864 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
865 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
866
867 /* if a sample rate is already used, another stream cannot change */
868 if(mgr->ref_count_rate++) {
869 if(mgr->sample_rate) {
870 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
871 }
872 }
873
874 _exit_open:
875 mutex_unlock(&mgr->setup_mutex);
876
877 return err;
878 }
879
880
881
882 static int snd_mixart_close(struct snd_pcm_substream *subs)
883 {
884 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
885 struct mixart_mgr *mgr = chip->mgr;
886 struct mixart_stream *stream = subs->runtime->private_data;
887
888 mutex_lock(&mgr->setup_mutex);
889
890 dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
891 chip->chip_idx, stream->pcm_number, subs->number);
892
893 /* sample rate released */
894 if(--mgr->ref_count_rate == 0) {
895 mgr->sample_rate = 0;
896 }
897
898 /* delete pipe */
899 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
900
901 dev_err(chip->card->dev,
902 "error snd_mixart_kill_ref_pipe C%dP%d\n",
903 chip->chip_idx, stream->pcm_number);
904 }
905
906 stream->pipe = NULL;
907 stream->status = MIXART_STREAM_STATUS_FREE;
908 stream->substream = NULL;
909
910 mutex_unlock(&mgr->setup_mutex);
911 return 0;
912 }
913
914
915 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
916 {
917 struct snd_pcm_runtime *runtime = subs->runtime;
918 struct mixart_stream *stream = runtime->private_data;
919
920 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
921 }
922
923
924
925 static const struct snd_pcm_ops snd_mixart_playback_ops = {
926 .open = snd_mixart_playback_open,
927 .close = snd_mixart_close,
928 .ioctl = snd_pcm_lib_ioctl,
929 .prepare = snd_mixart_prepare,
930 .hw_params = snd_mixart_hw_params,
931 .hw_free = snd_mixart_hw_free,
932 .trigger = snd_mixart_trigger,
933 .pointer = snd_mixart_stream_pointer,
934 };
935
936 static const struct snd_pcm_ops snd_mixart_capture_ops = {
937 .open = snd_mixart_capture_open,
938 .close = snd_mixart_close,
939 .ioctl = snd_pcm_lib_ioctl,
940 .prepare = snd_mixart_prepare,
941 .hw_params = snd_mixart_hw_params,
942 .hw_free = snd_mixart_hw_free,
943 .trigger = snd_mixart_trigger,
944 .pointer = snd_mixart_stream_pointer,
945 };
946
947 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
948 {
949 #if 0
950 struct snd_pcm_substream *subs;
951 int stream;
952
953 for (stream = 0; stream < 2; stream++) {
954 int idx = 0;
955 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
956 /* set up the unique device id with the chip index */
957 subs->dma_device.id = subs->pcm->device << 16 |
958 subs->stream << 8 | (subs->number + 1) |
959 (chip->chip_idx + 1) << 24;
960 }
961 #endif
962 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
963 snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
964 }
965
966 /*
967 */
968 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
969 {
970 int err;
971 struct snd_pcm *pcm;
972 char name[32];
973
974 sprintf(name, "miXart analog %d", chip->chip_idx);
975 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
976 MIXART_PLAYBACK_STREAMS,
977 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
978 dev_err(chip->card->dev,
979 "cannot create the analog pcm %d\n", chip->chip_idx);
980 return err;
981 }
982
983 pcm->private_data = chip;
984
985 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
986 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
987
988 pcm->info_flags = 0;
989 pcm->nonatomic = true;
990 strcpy(pcm->name, name);
991
992 preallocate_buffers(chip, pcm);
993
994 chip->pcm = pcm;
995 return 0;
996 }
997
998
999 /*
1000 */
1001 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
1002 {
1003 int err;
1004 struct snd_pcm *pcm;
1005 char name[32];
1006
1007 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
1008 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
1009 MIXART_PLAYBACK_STREAMS,
1010 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
1011 dev_err(chip->card->dev,
1012 "cannot create the digital pcm %d\n", chip->chip_idx);
1013 return err;
1014 }
1015
1016 pcm->private_data = chip;
1017
1018 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
1019 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
1020
1021 pcm->info_flags = 0;
1022 pcm->nonatomic = true;
1023 strcpy(pcm->name, name);
1024
1025 preallocate_buffers(chip, pcm);
1026
1027 chip->pcm_dig = pcm;
1028 return 0;
1029 }
1030
1031 static int snd_mixart_chip_free(struct snd_mixart *chip)
1032 {
1033 kfree(chip);
1034 return 0;
1035 }
1036
1037 static int snd_mixart_chip_dev_free(struct snd_device *device)
1038 {
1039 struct snd_mixart *chip = device->device_data;
1040 return snd_mixart_chip_free(chip);
1041 }
1042
1043
1044 /*
1045 */
1046 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1047 {
1048 int err;
1049 struct snd_mixart *chip;
1050 static struct snd_device_ops ops = {
1051 .dev_free = snd_mixart_chip_dev_free,
1052 };
1053
1054 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1055 if (! chip) {
1056 dev_err(card->dev, "cannot allocate chip\n");
1057 return -ENOMEM;
1058 }
1059
1060 chip->card = card;
1061 chip->chip_idx = idx;
1062 chip->mgr = mgr;
1063
1064 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1065 snd_mixart_chip_free(chip);
1066 return err;
1067 }
1068
1069 mgr->chip[idx] = chip;
1070 return 0;
1071 }
1072
1073 int snd_mixart_create_pcm(struct snd_mixart* chip)
1074 {
1075 int err;
1076
1077 err = snd_mixart_pcm_analog(chip);
1078 if (err < 0)
1079 return err;
1080
1081 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1082
1083 err = snd_mixart_pcm_digital(chip);
1084 if (err < 0)
1085 return err;
1086 }
1087 return err;
1088 }
1089
1090
1091 /*
1092 * release all the cards assigned to a manager instance
1093 */
1094 static int snd_mixart_free(struct mixart_mgr *mgr)
1095 {
1096 unsigned int i;
1097
1098 for (i = 0; i < mgr->num_cards; i++) {
1099 if (mgr->chip[i])
1100 snd_card_free(mgr->chip[i]->card);
1101 }
1102
1103 /* stop mailbox */
1104 snd_mixart_exit_mailbox(mgr);
1105
1106 /* release irq */
1107 if (mgr->irq >= 0)
1108 free_irq(mgr->irq, mgr);
1109
1110 /* reset board if some firmware was loaded */
1111 if(mgr->dsp_loaded) {
1112 snd_mixart_reset_board(mgr);
1113 dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1114 }
1115
1116 /* release the i/o ports */
1117 for (i = 0; i < 2; ++i)
1118 iounmap(mgr->mem[i].virt);
1119
1120 pci_release_regions(mgr->pci);
1121
1122 /* free flowarray */
1123 if(mgr->flowinfo.area) {
1124 snd_dma_free_pages(&mgr->flowinfo);
1125 mgr->flowinfo.area = NULL;
1126 }
1127 /* free bufferarray */
1128 if(mgr->bufferinfo.area) {
1129 snd_dma_free_pages(&mgr->bufferinfo);
1130 mgr->bufferinfo.area = NULL;
1131 }
1132
1133 pci_disable_device(mgr->pci);
1134 kfree(mgr);
1135 return 0;
1136 }
1137
1138 /*
1139 * proc interface
1140 */
1141
1142 /*
1143 mixart_BA0 proc interface for BAR 0 - read callback
1144 */
1145 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1146 void *file_private_data,
1147 struct file *file, char __user *buf,
1148 size_t count, loff_t pos)
1149 {
1150 struct mixart_mgr *mgr = entry->private_data;
1151
1152 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1153 if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1154 return -EFAULT;
1155 return count;
1156 }
1157
1158 /*
1159 mixart_BA1 proc interface for BAR 1 - read callback
1160 */
1161 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1162 void *file_private_data,
1163 struct file *file, char __user *buf,
1164 size_t count, loff_t pos)
1165 {
1166 struct mixart_mgr *mgr = entry->private_data;
1167
1168 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1169 if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1170 return -EFAULT;
1171 return count;
1172 }
1173
1174 static struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1175 .read = snd_mixart_BA0_read,
1176 };
1177
1178 static struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1179 .read = snd_mixart_BA1_read,
1180 };
1181
1182
1183 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1184 struct snd_info_buffer *buffer)
1185 {
1186 struct snd_mixart *chip = entry->private_data;
1187 u32 ref;
1188
1189 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1190
1191 /* stats available when embedded OS is running */
1192 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1193 snd_iprintf(buffer, "- hardware -\n");
1194 switch (chip->mgr->board_type ) {
1195 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1196 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1197 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1198 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1199 }
1200
1201 snd_iprintf(buffer, "- system load -\n");
1202
1203 /* get perf reference */
1204
1205 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1206
1207 if (ref) {
1208 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1209 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1210 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1211
1212 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1213 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1214 snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1215 }
1216 } /* endif elf loaded */
1217 }
1218
1219 static void snd_mixart_proc_init(struct snd_mixart *chip)
1220 {
1221 struct snd_info_entry *entry;
1222
1223 /* text interface to read perf and temp meters */
1224 if (! snd_card_proc_new(chip->card, "board_info", &entry)) {
1225 entry->private_data = chip;
1226 entry->c.text.read = snd_mixart_proc_read;
1227 }
1228
1229 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1230 entry->content = SNDRV_INFO_CONTENT_DATA;
1231 entry->private_data = chip->mgr;
1232 entry->c.ops = &snd_mixart_proc_ops_BA0;
1233 entry->size = MIXART_BA0_SIZE;
1234 }
1235 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1236 entry->content = SNDRV_INFO_CONTENT_DATA;
1237 entry->private_data = chip->mgr;
1238 entry->c.ops = &snd_mixart_proc_ops_BA1;
1239 entry->size = MIXART_BA1_SIZE;
1240 }
1241 }
1242 /* end of proc interface */
1243
1244
1245 /*
1246 * probe function - creates the card manager
1247 */
1248 static int snd_mixart_probe(struct pci_dev *pci,
1249 const struct pci_device_id *pci_id)
1250 {
1251 static int dev;
1252 struct mixart_mgr *mgr;
1253 unsigned int i;
1254 int err;
1255 size_t size;
1256
1257 /*
1258 */
1259 if (dev >= SNDRV_CARDS)
1260 return -ENODEV;
1261 if (! enable[dev]) {
1262 dev++;
1263 return -ENOENT;
1264 }
1265
1266 /* enable PCI device */
1267 if ((err = pci_enable_device(pci)) < 0)
1268 return err;
1269 pci_set_master(pci);
1270
1271 /* check if we can restrict PCI DMA transfers to 32 bits */
1272 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1273 dev_err(&pci->dev,
1274 "architecture does not support 32bit PCI busmaster DMA\n");
1275 pci_disable_device(pci);
1276 return -ENXIO;
1277 }
1278
1279 /*
1280 */
1281 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1282 if (! mgr) {
1283 pci_disable_device(pci);
1284 return -ENOMEM;
1285 }
1286
1287 mgr->pci = pci;
1288 mgr->irq = -1;
1289
1290 /* resource assignment */
1291 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1292 kfree(mgr);
1293 pci_disable_device(pci);
1294 return err;
1295 }
1296 for (i = 0; i < 2; i++) {
1297 mgr->mem[i].phys = pci_resource_start(pci, i);
1298 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1299 if (!mgr->mem[i].virt) {
1300 dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1301 mgr->mem[i].phys);
1302 snd_mixart_free(mgr);
1303 return -EBUSY;
1304 }
1305 }
1306
1307 if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1308 snd_mixart_threaded_irq, IRQF_SHARED,
1309 KBUILD_MODNAME, mgr)) {
1310 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1311 snd_mixart_free(mgr);
1312 return -EBUSY;
1313 }
1314 mgr->irq = pci->irq;
1315
1316 sprintf(mgr->shortname, "Digigram miXart");
1317 sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq);
1318
1319 /* init mailbox */
1320 mgr->msg_fifo_readptr = 0;
1321 mgr->msg_fifo_writeptr = 0;
1322
1323 mutex_init(&mgr->lock);
1324 mutex_init(&mgr->msg_lock);
1325 init_waitqueue_head(&mgr->msg_sleep);
1326 atomic_set(&mgr->msg_processed, 0);
1327
1328 /* init setup mutex*/
1329 mutex_init(&mgr->setup_mutex);
1330
1331 /* card assignment */
1332 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1333 for (i = 0; i < mgr->num_cards; i++) {
1334 struct snd_card *card;
1335 char tmpid[16];
1336 int idx;
1337
1338 if (index[dev] < 0)
1339 idx = index[dev];
1340 else
1341 idx = index[dev] + i;
1342 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1343 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1344 0, &card);
1345
1346 if (err < 0) {
1347 dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1348 snd_mixart_free(mgr);
1349 return err;
1350 }
1351
1352 strcpy(card->driver, CARD_NAME);
1353 sprintf(card->shortname, "%s [PCM #%d]", mgr->shortname, i);
1354 sprintf(card->longname, "%s [PCM #%d]", mgr->longname, i);
1355
1356 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1357 snd_card_free(card);
1358 snd_mixart_free(mgr);
1359 return err;
1360 }
1361
1362 if(i==0) {
1363 /* init proc interface only for chip0 */
1364 snd_mixart_proc_init(mgr->chip[i]);
1365 }
1366
1367 if ((err = snd_card_register(card)) < 0) {
1368 snd_mixart_free(mgr);
1369 return err;
1370 }
1371 }
1372
1373 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1374 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1375
1376 /* create array of streaminfo */
1377 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1378 sizeof(struct mixart_flowinfo)) );
1379 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1380 size, &mgr->flowinfo) < 0) {
1381 snd_mixart_free(mgr);
1382 return -ENOMEM;
1383 }
1384 /* init streaminfo_array */
1385 memset(mgr->flowinfo.area, 0, size);
1386
1387 /* create array of bufferinfo */
1388 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1389 sizeof(struct mixart_bufferinfo)) );
1390 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1391 size, &mgr->bufferinfo) < 0) {
1392 snd_mixart_free(mgr);
1393 return -ENOMEM;
1394 }
1395 /* init bufferinfo_array */
1396 memset(mgr->bufferinfo.area, 0, size);
1397
1398 /* set up firmware */
1399 err = snd_mixart_setup_firmware(mgr);
1400 if (err < 0) {
1401 snd_mixart_free(mgr);
1402 return err;
1403 }
1404
1405 pci_set_drvdata(pci, mgr);
1406 dev++;
1407 return 0;
1408 }
1409
1410 static void snd_mixart_remove(struct pci_dev *pci)
1411 {
1412 snd_mixart_free(pci_get_drvdata(pci));
1413 }
1414
1415 static struct pci_driver mixart_driver = {
1416 .name = KBUILD_MODNAME,
1417 .id_table = snd_mixart_ids,
1418 .probe = snd_mixart_probe,
1419 .remove = snd_mixart_remove,
1420 };
1421
1422 module_pci_driver(mixart_driver);
Linux kernel - Deliverables
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