1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Driver for Digigram miXart soundcards
4 *
5 * main file with alsa callbacks
6 *
7 * Copyright (c) 2003 by Digigram <alsa@digigram.com>
8 */
9
10
11 #include <linux/init.h>
12 #include <linux/interrupt.h>
13 #include <linux/pci.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/module.h>
16 #include <linux/mutex.h>
17 #include <linux/slab.h>
18
19 #include <sound/core.h>
20 #include <sound/initval.h>
21 #include <sound/info.h>
22 #include <sound/control.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include "mixart.h"
26 #include "mixart_hwdep.h"
27 #include "mixart_core.h"
28 #include "mixart_mixer.h"
29
30 #define CARD_NAME "miXart"
31
32 MODULE_AUTHOR("Digigram <alsa@digigram.com>");
33 MODULE_DESCRIPTION("Digigram " CARD_NAME);
34 MODULE_LICENSE("GPL");
35
36 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
37 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
38 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
39
40 module_param_array(index, int, NULL, 0444);
41 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
42 module_param_array(id, charp, NULL, 0444);
43 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
44 module_param_array(enable, bool, NULL, 0444);
45 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
46
47 /*
48 */
49
50 static const struct pci_device_id snd_mixart_ids[] = {
51 { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
52 { 0, }
53 };
54
55 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
56
57
mixart_set_pipe_state(struct mixart_mgr * mgr,struct mixart_pipe * pipe,int start)58 static int mixart_set_pipe_state(struct mixart_mgr *mgr,
59 struct mixart_pipe *pipe, int start)
60 {
61 struct mixart_group_state_req group_state;
62 struct mixart_group_state_resp group_state_resp;
63 struct mixart_msg request;
64 int err;
65 u32 system_msg_uid;
66
67 switch(pipe->status) {
68 case PIPE_RUNNING:
69 case PIPE_CLOCK_SET:
70 if(start) return 0; /* already started */
71 break;
72 case PIPE_STOPPED:
73 if(!start) return 0; /* already stopped */
74 break;
75 default:
76 dev_err(&mgr->pci->dev,
77 "error mixart_set_pipe_state called with wrong pipe->status!\n");
78 return -EINVAL; /* function called with wrong pipe status */
79 }
80
81 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
82
83 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
84
85 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
86 request.uid = (struct mixart_uid){0,0};
87 request.data = &system_msg_uid;
88 request.size = sizeof(system_msg_uid);
89
90 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
91 if(err) {
92 dev_err(&mgr->pci->dev,
93 "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
94 return err;
95 }
96
97 /* start or stop the pipe (1 pipe) */
98
99 memset(&group_state, 0, sizeof(group_state));
100 group_state.pipe_count = 1;
101 group_state.pipe_uid = pipe->group_uid;
102
103 if(start)
104 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
105 else
106 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
107
108 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
109 request.data = &group_state;
110 request.size = sizeof(group_state);
111
112 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
113 if (err < 0 || group_state_resp.txx_status != 0) {
114 dev_err(&mgr->pci->dev,
115 "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
116 err, group_state_resp.txx_status);
117 return -EINVAL;
118 }
119
120 if(start) {
121 u32 stat = 0;
122
123 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
124
125 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
126 if (err < 0 || group_state_resp.txx_status != 0) {
127 dev_err(&mgr->pci->dev,
128 "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
129 err, group_state_resp.txx_status);
130 return -EINVAL;
131 }
132
133 /* in case of start send a synchro top */
134
135 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
136 request.uid = (struct mixart_uid){0,0};
137 request.data = NULL;
138 request.size = 0;
139
140 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
141 if (err < 0 || stat != 0) {
142 dev_err(&mgr->pci->dev,
143 "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
144 err, stat);
145 return -EINVAL;
146 }
147
148 pipe->status = PIPE_RUNNING;
149 }
150 else /* !start */
151 pipe->status = PIPE_STOPPED;
152
153 return 0;
154 }
155
156
mixart_set_clock(struct mixart_mgr * mgr,struct mixart_pipe * pipe,unsigned int rate)157 static int mixart_set_clock(struct mixart_mgr *mgr,
158 struct mixart_pipe *pipe, unsigned int rate)
159 {
160 struct mixart_msg request;
161 struct mixart_clock_properties clock_properties;
162 struct mixart_clock_properties_resp clock_prop_resp;
163 int err;
164
165 switch(pipe->status) {
166 case PIPE_CLOCK_SET:
167 break;
168 case PIPE_RUNNING:
169 if(rate != 0)
170 break;
171 fallthrough;
172 default:
173 if(rate == 0)
174 return 0; /* nothing to do */
175 else {
176 dev_err(&mgr->pci->dev,
177 "error mixart_set_clock(%d) called with wrong pipe->status !\n",
178 rate);
179 return -EINVAL;
180 }
181 }
182
183 memset(&clock_properties, 0, sizeof(clock_properties));
184 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
185 clock_properties.clock_mode = CM_STANDALONE;
186 clock_properties.frequency = rate;
187 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
188 clock_properties.uid_caller = pipe->group_uid;
189
190 dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
191
192 request.message_id = MSG_CLOCK_SET_PROPERTIES;
193 request.uid = mgr->uid_console_manager;
194 request.data = &clock_properties;
195 request.size = sizeof(clock_properties);
196
197 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
198 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
199 dev_err(&mgr->pci->dev,
200 "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
201 err, clock_prop_resp.status, clock_prop_resp.clock_mode);
202 return -EINVAL;
203 }
204
205 if(rate) pipe->status = PIPE_CLOCK_SET;
206 else pipe->status = PIPE_RUNNING;
207
208 return 0;
209 }
210
211
212 /*
213 * Allocate or reference output pipe for analog IOs (pcmp0/1)
214 */
215 struct mixart_pipe *
snd_mixart_add_ref_pipe(struct snd_mixart * chip,int pcm_number,int capture,int monitoring)216 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
217 int monitoring)
218 {
219 int stream_count;
220 struct mixart_pipe *pipe;
221 struct mixart_msg request;
222
223 if(capture) {
224 if (pcm_number == MIXART_PCM_ANALOG) {
225 pipe = &(chip->pipe_in_ana); /* analog inputs */
226 } else {
227 pipe = &(chip->pipe_in_dig); /* digital inputs */
228 }
229 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
230 stream_count = MIXART_CAPTURE_STREAMS;
231 } else {
232 if (pcm_number == MIXART_PCM_ANALOG) {
233 pipe = &(chip->pipe_out_ana); /* analog outputs */
234 } else {
235 pipe = &(chip->pipe_out_dig); /* digital outputs */
236 }
237 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
238 stream_count = MIXART_PLAYBACK_STREAMS;
239 }
240
241 /* a new stream is opened and there are already all streams in use */
242 if( (monitoring == 0) && (pipe->references >= stream_count) ) {
243 return NULL;
244 }
245
246 /* pipe is not yet defined */
247 if( pipe->status == PIPE_UNDEFINED ) {
248 int err, i;
249 struct {
250 struct mixart_streaming_group_req sgroup_req;
251 struct mixart_streaming_group sgroup_resp;
252 } *buf;
253
254 dev_dbg(chip->card->dev,
255 "add_ref_pipe audio chip(%d) pcm(%d)\n",
256 chip->chip_idx, pcm_number);
257
258 buf = kmalloc_obj(*buf);
259 if (!buf)
260 return NULL;
261
262 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
263 request.data = &buf->sgroup_req;
264 request.size = sizeof(buf->sgroup_req);
265
266 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
267
268 buf->sgroup_req.stream_count = stream_count;
269 buf->sgroup_req.channel_count = 2;
270 buf->sgroup_req.latency = 256;
271 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
272
273 for (i=0; i<stream_count; i++) {
274 int j;
275 struct mixart_flowinfo *flowinfo;
276 struct mixart_bufferinfo *bufferinfo;
277
278 /* we don't yet know the format, so config 16 bit pcm audio for instance */
279 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
280 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
281 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
282
283 /* find the right bufferinfo_array */
284 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
285 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
286
287 buf->sgroup_req.flow_entry[i] = j;
288
289 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
290 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
291 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
292
293 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
294 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
295 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
296
297 /* construct the identifier of the stream buffer received in the interrupts ! */
298 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
299 if(capture) {
300 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
301 }
302 }
303
304 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
305 if((err < 0) || (buf->sgroup_resp.status != 0)) {
306 dev_err(chip->card->dev,
307 "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
308 err, buf->sgroup_resp.status);
309 kfree(buf);
310 return NULL;
311 }
312
313 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
314 pipe->stream_count = buf->sgroup_resp.stream_count;
315 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
316
317 pipe->status = PIPE_STOPPED;
318 kfree(buf);
319 }
320
321 if(monitoring) pipe->monitoring = 1;
322 else pipe->references++;
323
324 return pipe;
325 }
326
327
snd_mixart_kill_ref_pipe(struct mixart_mgr * mgr,struct mixart_pipe * pipe,int monitoring)328 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
329 struct mixart_pipe *pipe, int monitoring)
330 {
331 int err = 0;
332
333 if(pipe->status == PIPE_UNDEFINED)
334 return 0;
335
336 if(monitoring)
337 pipe->monitoring = 0;
338 else
339 pipe->references--;
340
341 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
342
343 struct mixart_msg request;
344 struct mixart_delete_group_resp delete_resp;
345
346 /* release the clock */
347 err = mixart_set_clock( mgr, pipe, 0);
348 if( err < 0 ) {
349 dev_err(&mgr->pci->dev,
350 "mixart_set_clock(0) return error!\n");
351 }
352
353 /* stop the pipe */
354 err = mixart_set_pipe_state(mgr, pipe, 0);
355 if( err < 0 ) {
356 dev_err(&mgr->pci->dev, "error stopping pipe!\n");
357 }
358
359 request.message_id = MSG_STREAM_DELETE_GROUP;
360 request.uid = (struct mixart_uid){0,0};
361 request.data = &pipe->group_uid; /* the streaming group ! */
362 request.size = sizeof(pipe->group_uid);
363
364 /* delete the pipe */
365 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
366 if ((err < 0) || (delete_resp.status != 0)) {
367 dev_err(&mgr->pci->dev,
368 "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
369 err, delete_resp.status);
370 }
371
372 pipe->group_uid = (struct mixart_uid){0,0};
373 pipe->stream_count = 0;
374 pipe->status = PIPE_UNDEFINED;
375 }
376
377 return err;
378 }
379
mixart_set_stream_state(struct mixart_stream * stream,int start)380 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
381 {
382 struct snd_mixart *chip;
383 struct mixart_stream_state_req stream_state_req;
384 struct mixart_msg request;
385
386 if(!stream->substream)
387 return -EINVAL;
388
389 memset(&stream_state_req, 0, sizeof(stream_state_req));
390 stream_state_req.stream_count = 1;
391 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
392 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
393
394 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
395 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
396 else
397 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
398
399 request.uid = (struct mixart_uid){0,0};
400 request.data = &stream_state_req;
401 request.size = sizeof(stream_state_req);
402
403 stream->abs_period_elapsed = 0; /* reset stream pos */
404 stream->buf_periods = 0;
405 stream->buf_period_frag = 0;
406
407 chip = snd_pcm_substream_chip(stream->substream);
408
409 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
410 }
411
412 /*
413 * Trigger callback
414 */
415
snd_mixart_trigger(struct snd_pcm_substream * subs,int cmd)416 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
417 {
418 struct mixart_stream *stream = subs->runtime->private_data;
419
420 switch (cmd) {
421 case SNDRV_PCM_TRIGGER_START:
422
423 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
424
425 /* START_STREAM */
426 if( mixart_set_stream_state(stream, 1) )
427 return -EINVAL;
428
429 stream->status = MIXART_STREAM_STATUS_RUNNING;
430
431 break;
432 case SNDRV_PCM_TRIGGER_STOP:
433
434 /* STOP_STREAM */
435 if( mixart_set_stream_state(stream, 0) )
436 return -EINVAL;
437
438 stream->status = MIXART_STREAM_STATUS_OPEN;
439
440 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
441
442 break;
443
444 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
445 /* TODO */
446 stream->status = MIXART_STREAM_STATUS_PAUSE;
447 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
448 break;
449 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
450 /* TODO */
451 stream->status = MIXART_STREAM_STATUS_RUNNING;
452 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
453 break;
454 default:
455 return -EINVAL;
456 }
457 return 0;
458 }
459
mixart_sync_nonblock_events(struct mixart_mgr * mgr)460 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
461 {
462 unsigned long timeout = jiffies + HZ;
463 while (atomic_read(&mgr->msg_processed) > 0) {
464 if (time_after(jiffies, timeout)) {
465 dev_err(&mgr->pci->dev,
466 "mixart: cannot process nonblock events!\n");
467 return -EBUSY;
468 }
469 schedule_timeout_uninterruptible(1);
470 }
471 return 0;
472 }
473
474 /*
475 * prepare callback for all pcms
476 */
snd_mixart_prepare(struct snd_pcm_substream * subs)477 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
478 {
479 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
480 struct mixart_stream *stream = subs->runtime->private_data;
481
482 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
483
484 dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
485
486 mixart_sync_nonblock_events(chip->mgr);
487
488 /* only the first stream can choose the sample rate */
489 /* the further opened streams will be limited to its frequency (see open) */
490 if(chip->mgr->ref_count_rate == 1)
491 chip->mgr->sample_rate = subs->runtime->rate;
492
493 /* set the clock only once (first stream) on the same pipe */
494 if(stream->pipe->references == 1) {
495 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
496 return -EINVAL;
497 }
498
499 return 0;
500 }
501
502
mixart_set_format(struct mixart_stream * stream,snd_pcm_format_t format)503 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
504 {
505 int err;
506 struct snd_mixart *chip;
507 struct mixart_msg request;
508 struct mixart_stream_param_desc stream_param;
509 struct mixart_return_uid resp;
510
511 chip = snd_pcm_substream_chip(stream->substream);
512
513 memset(&stream_param, 0, sizeof(stream_param));
514
515 stream_param.coding_type = CT_LINEAR;
516 stream_param.number_of_channel = stream->channels;
517
518 stream_param.sampling_freq = chip->mgr->sample_rate;
519 if(stream_param.sampling_freq == 0)
520 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
521
522 switch(format){
523 case SNDRV_PCM_FORMAT_U8:
524 stream_param.sample_type = ST_INTEGER_8;
525 stream_param.sample_size = 8;
526 break;
527 case SNDRV_PCM_FORMAT_S16_LE:
528 stream_param.sample_type = ST_INTEGER_16LE;
529 stream_param.sample_size = 16;
530 break;
531 case SNDRV_PCM_FORMAT_S16_BE:
532 stream_param.sample_type = ST_INTEGER_16BE;
533 stream_param.sample_size = 16;
534 break;
535 case SNDRV_PCM_FORMAT_S24_3LE:
536 stream_param.sample_type = ST_INTEGER_24LE;
537 stream_param.sample_size = 24;
538 break;
539 case SNDRV_PCM_FORMAT_S24_3BE:
540 stream_param.sample_type = ST_INTEGER_24BE;
541 stream_param.sample_size = 24;
542 break;
543 case SNDRV_PCM_FORMAT_FLOAT_LE:
544 stream_param.sample_type = ST_FLOATING_POINT_32LE;
545 stream_param.sample_size = 32;
546 break;
547 case SNDRV_PCM_FORMAT_FLOAT_BE:
548 stream_param.sample_type = ST_FLOATING_POINT_32BE;
549 stream_param.sample_size = 32;
550 break;
551 default:
552 dev_err(chip->card->dev,
553 "error mixart_set_format() : unknown format\n");
554 return -EINVAL;
555 }
556
557 dev_dbg(chip->card->dev,
558 "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
559 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
560
561 /* TODO: what else to configure ? */
562 /* stream_param.samples_per_frame = 2; */
563 /* stream_param.bytes_per_frame = 4; */
564 /* stream_param.bytes_per_sample = 2; */
565
566 stream_param.pipe_count = 1; /* set to 1 */
567 stream_param.stream_count = 1; /* set to 1 */
568 stream_param.stream_desc.uid_pipe = stream->pipe->group_uid;
569 stream_param.stream_desc.stream_idx = stream->substream->number;
570
571 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
572 request.uid = (struct mixart_uid){0,0};
573 request.data = &stream_param;
574 request.size = sizeof(stream_param);
575
576 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
577 if((err < 0) || resp.error_code) {
578 dev_err(chip->card->dev,
579 "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
580 err, resp.error_code);
581 return -EINVAL;
582 }
583 return 0;
584 }
585
586
587 /*
588 * HW_PARAMS callback for all pcms
589 */
snd_mixart_hw_params(struct snd_pcm_substream * subs,struct snd_pcm_hw_params * hw)590 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
591 struct snd_pcm_hw_params *hw)
592 {
593 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
594 struct mixart_mgr *mgr = chip->mgr;
595 struct mixart_stream *stream = subs->runtime->private_data;
596 snd_pcm_format_t format;
597 int err;
598 int channels;
599
600 /* set up channels */
601 channels = params_channels(hw);
602
603 /* set up format for the stream */
604 format = params_format(hw);
605
606 guard(mutex)(&mgr->setup_mutex);
607
608 /* update the stream levels */
609 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
610 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
611 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
612 mixart_update_playback_stream_level(chip, is_aes, subs->number);
613 else
614 mixart_update_capture_stream_level( chip, is_aes);
615 }
616
617 stream->channels = channels;
618
619 /* set the format to the board */
620 err = mixart_set_format(stream, format);
621 if (err < 0)
622 return err;
623
624 if (subs->runtime->buffer_changed) {
625 struct mixart_bufferinfo *bufferinfo;
626 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
627 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
628 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
629 }
630
631 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
632 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
633 bufferinfo[i].available_length = subs->runtime->dma_bytes;
634 /* bufferinfo[i].buffer_id is already defined */
635
636 dev_dbg(chip->card->dev,
637 "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
638 i, bufferinfo[i].buffer_address,
639 bufferinfo[i].available_length,
640 subs->number);
641 }
642
643 return 0;
644 }
645
snd_mixart_hw_free(struct snd_pcm_substream * subs)646 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
647 {
648 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
649 mixart_sync_nonblock_events(chip->mgr);
650 return 0;
651 }
652
653
654
655 /*
656 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
657 */
658 static const struct snd_pcm_hardware snd_mixart_analog_caps =
659 {
660 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
661 SNDRV_PCM_INFO_MMAP_VALID |
662 SNDRV_PCM_INFO_PAUSE),
663 .formats = ( SNDRV_PCM_FMTBIT_U8 |
664 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
665 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
666 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
667 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
668 .rate_min = 8000,
669 .rate_max = 48000,
670 .channels_min = 1,
671 .channels_max = 2,
672 .buffer_bytes_max = (32*1024),
673 .period_bytes_min = 256, /* 256 frames U8 mono*/
674 .period_bytes_max = (16*1024),
675 .periods_min = 2,
676 .periods_max = (32*1024/256),
677 };
678
679 static const struct snd_pcm_hardware snd_mixart_digital_caps =
680 {
681 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
682 SNDRV_PCM_INFO_MMAP_VALID |
683 SNDRV_PCM_INFO_PAUSE),
684 .formats = ( SNDRV_PCM_FMTBIT_U8 |
685 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
686 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
687 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
688 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
689 .rate_min = 32000,
690 .rate_max = 48000,
691 .channels_min = 1,
692 .channels_max = 2,
693 .buffer_bytes_max = (32*1024),
694 .period_bytes_min = 256, /* 256 frames U8 mono*/
695 .period_bytes_max = (16*1024),
696 .periods_min = 2,
697 .periods_max = (32*1024/256),
698 };
699
700
snd_mixart_playback_open(struct snd_pcm_substream * subs)701 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
702 {
703 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
704 struct mixart_mgr *mgr = chip->mgr;
705 struct snd_pcm_runtime *runtime = subs->runtime;
706 struct snd_pcm *pcm = subs->pcm;
707 struct mixart_stream *stream;
708 struct mixart_pipe *pipe;
709 int err = 0;
710 int pcm_number;
711
712 guard(mutex)(&mgr->setup_mutex);
713
714 if ( pcm == chip->pcm ) {
715 pcm_number = MIXART_PCM_ANALOG;
716 runtime->hw = snd_mixart_analog_caps;
717 } else {
718 snd_BUG_ON(pcm != chip->pcm_dig);
719 pcm_number = MIXART_PCM_DIGITAL;
720 runtime->hw = snd_mixart_digital_caps;
721 }
722 dev_dbg(chip->card->dev,
723 "snd_mixart_playback_open C%d/P%d/Sub%d\n",
724 chip->chip_idx, pcm_number, subs->number);
725
726 /* get stream info */
727 stream = &(chip->playback_stream[pcm_number][subs->number]);
728
729 if (stream->status != MIXART_STREAM_STATUS_FREE){
730 /* streams in use */
731 dev_err(chip->card->dev,
732 "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
733 chip->chip_idx, pcm_number, subs->number);
734 return -EBUSY;
735 }
736
737 /* get pipe pointer (out pipe) */
738 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
739
740 if (pipe == NULL)
741 return -EINVAL;
742
743 /* start the pipe if necessary */
744 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
745 if( err < 0 ) {
746 dev_err(chip->card->dev, "error starting pipe!\n");
747 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
748 return -EINVAL;
749 }
750
751 stream->pipe = pipe;
752 stream->pcm_number = pcm_number;
753 stream->status = MIXART_STREAM_STATUS_OPEN;
754 stream->substream = subs;
755 stream->channels = 0; /* not configured yet */
756
757 runtime->private_data = stream;
758
759 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
760 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
761
762 /* if a sample rate is already used, another stream cannot change */
763 if(mgr->ref_count_rate++) {
764 if(mgr->sample_rate) {
765 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
766 }
767 }
768
769 return 0;
770 }
771
772
snd_mixart_capture_open(struct snd_pcm_substream * subs)773 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
774 {
775 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
776 struct mixart_mgr *mgr = chip->mgr;
777 struct snd_pcm_runtime *runtime = subs->runtime;
778 struct snd_pcm *pcm = subs->pcm;
779 struct mixart_stream *stream;
780 struct mixart_pipe *pipe;
781 int err = 0;
782 int pcm_number;
783
784 guard(mutex)(&mgr->setup_mutex);
785
786 if ( pcm == chip->pcm ) {
787 pcm_number = MIXART_PCM_ANALOG;
788 runtime->hw = snd_mixart_analog_caps;
789 } else {
790 snd_BUG_ON(pcm != chip->pcm_dig);
791 pcm_number = MIXART_PCM_DIGITAL;
792 runtime->hw = snd_mixart_digital_caps;
793 }
794
795 runtime->hw.channels_min = 2; /* for instance, no mono */
796
797 dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
798 chip->chip_idx, pcm_number, subs->number);
799
800 /* get stream info */
801 stream = &(chip->capture_stream[pcm_number]);
802
803 if (stream->status != MIXART_STREAM_STATUS_FREE){
804 /* streams in use */
805 dev_err(chip->card->dev,
806 "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
807 chip->chip_idx, pcm_number, subs->number);
808 return -EBUSY;
809 }
810
811 /* get pipe pointer (in pipe) */
812 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
813
814 if (pipe == NULL)
815 return -EINVAL;
816
817 /* start the pipe if necessary */
818 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
819 if( err < 0 ) {
820 dev_err(chip->card->dev, "error starting pipe!\n");
821 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
822 return -EINVAL;
823 }
824
825 stream->pipe = pipe;
826 stream->pcm_number = pcm_number;
827 stream->status = MIXART_STREAM_STATUS_OPEN;
828 stream->substream = subs;
829 stream->channels = 0; /* not configured yet */
830
831 runtime->private_data = stream;
832
833 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
834 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
835
836 /* if a sample rate is already used, another stream cannot change */
837 if(mgr->ref_count_rate++) {
838 if(mgr->sample_rate) {
839 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
840 }
841 }
842
843 return 0;
844 }
845
846
847
snd_mixart_close(struct snd_pcm_substream * subs)848 static int snd_mixart_close(struct snd_pcm_substream *subs)
849 {
850 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
851 struct mixart_mgr *mgr = chip->mgr;
852 struct mixart_stream *stream = subs->runtime->private_data;
853
854 guard(mutex)(&mgr->setup_mutex);
855
856 dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
857 chip->chip_idx, stream->pcm_number, subs->number);
858
859 /* sample rate released */
860 if(--mgr->ref_count_rate == 0) {
861 mgr->sample_rate = 0;
862 }
863
864 /* delete pipe */
865 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
866
867 dev_err(chip->card->dev,
868 "error snd_mixart_kill_ref_pipe C%dP%d\n",
869 chip->chip_idx, stream->pcm_number);
870 }
871
872 stream->pipe = NULL;
873 stream->status = MIXART_STREAM_STATUS_FREE;
874 stream->substream = NULL;
875
876 return 0;
877 }
878
879
snd_mixart_stream_pointer(struct snd_pcm_substream * subs)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 const struct snd_pcm_ops snd_mixart_playback_ops = {
891 .open = snd_mixart_playback_open,
892 .close = snd_mixart_close,
893 .prepare = snd_mixart_prepare,
894 .hw_params = snd_mixart_hw_params,
895 .hw_free = snd_mixart_hw_free,
896 .trigger = snd_mixart_trigger,
897 .pointer = snd_mixart_stream_pointer,
898 };
899
900 static const struct snd_pcm_ops snd_mixart_capture_ops = {
901 .open = snd_mixart_capture_open,
902 .close = snd_mixart_close,
903 .prepare = snd_mixart_prepare,
904 .hw_params = snd_mixart_hw_params,
905 .hw_free = snd_mixart_hw_free,
906 .trigger = snd_mixart_trigger,
907 .pointer = snd_mixart_stream_pointer,
908 };
909
preallocate_buffers(struct snd_mixart * chip,struct snd_pcm * pcm)910 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
911 {
912 #if 0
913 struct snd_pcm_substream *subs;
914 int stream;
915
916 for (stream = 0; stream < 2; stream++) {
917 int idx = 0;
918 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
919 /* set up the unique device id with the chip index */
920 subs->dma_device.id = subs->pcm->device << 16 |
921 subs->stream << 8 | (subs->number + 1) |
922 (chip->chip_idx + 1) << 24;
923 }
924 #endif
925 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
926 &chip->mgr->pci->dev,
927 32*1024, 32*1024);
928 }
929
930 /*
931 */
snd_mixart_pcm_analog(struct snd_mixart * chip)932 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
933 {
934 int err;
935 struct snd_pcm *pcm;
936 char name[32];
937
938 sprintf(name, "miXart analog %d", chip->chip_idx);
939 err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
940 MIXART_PLAYBACK_STREAMS,
941 MIXART_CAPTURE_STREAMS, &pcm);
942 if (err < 0) {
943 dev_err(chip->card->dev,
944 "cannot create the analog pcm %d\n", chip->chip_idx);
945 return err;
946 }
947
948 pcm->private_data = chip;
949
950 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
951 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
952
953 pcm->info_flags = 0;
954 pcm->nonatomic = true;
955 strscpy(pcm->name, name);
956
957 preallocate_buffers(chip, pcm);
958
959 chip->pcm = pcm;
960 return 0;
961 }
962
963
964 /*
965 */
snd_mixart_pcm_digital(struct snd_mixart * chip)966 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
967 {
968 int err;
969 struct snd_pcm *pcm;
970 char name[32];
971
972 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
973 err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
974 MIXART_PLAYBACK_STREAMS,
975 MIXART_CAPTURE_STREAMS, &pcm);
976 if (err < 0) {
977 dev_err(chip->card->dev,
978 "cannot create the digital pcm %d\n", chip->chip_idx);
979 return err;
980 }
981
982 pcm->private_data = chip;
983
984 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
985 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
986
987 pcm->info_flags = 0;
988 pcm->nonatomic = true;
989 strscpy(pcm->name, name);
990
991 preallocate_buffers(chip, pcm);
992
993 chip->pcm_dig = pcm;
994 return 0;
995 }
996
snd_mixart_chip_free(struct snd_mixart * chip)997 static int snd_mixart_chip_free(struct snd_mixart *chip)
998 {
999 kfree(chip);
1000 return 0;
1001 }
1002
snd_mixart_chip_dev_free(struct snd_device * device)1003 static int snd_mixart_chip_dev_free(struct snd_device *device)
1004 {
1005 struct snd_mixart *chip = device->device_data;
1006 return snd_mixart_chip_free(chip);
1007 }
1008
1009
1010 /*
1011 */
snd_mixart_create(struct mixart_mgr * mgr,struct snd_card * card,int idx)1012 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1013 {
1014 int err;
1015 struct snd_mixart *chip;
1016 static const struct snd_device_ops ops = {
1017 .dev_free = snd_mixart_chip_dev_free,
1018 };
1019
1020 chip = kzalloc_obj(*chip);
1021 if (!chip)
1022 return -ENOMEM;
1023
1024 chip->card = card;
1025 chip->chip_idx = idx;
1026 chip->mgr = mgr;
1027 card->sync_irq = mgr->irq;
1028
1029 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1030 if (err < 0) {
1031 snd_mixart_chip_free(chip);
1032 return err;
1033 }
1034
1035 mgr->chip[idx] = chip;
1036 return 0;
1037 }
1038
snd_mixart_create_pcm(struct snd_mixart * chip)1039 int snd_mixart_create_pcm(struct snd_mixart* chip)
1040 {
1041 int err;
1042
1043 err = snd_mixart_pcm_analog(chip);
1044 if (err < 0)
1045 return err;
1046
1047 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1048
1049 err = snd_mixart_pcm_digital(chip);
1050 if (err < 0)
1051 return err;
1052 }
1053 return err;
1054 }
1055
1056
1057 /*
1058 * release all the cards assigned to a manager instance
1059 */
snd_mixart_free(struct mixart_mgr * mgr)1060 static int snd_mixart_free(struct mixart_mgr *mgr)
1061 {
1062 unsigned int i;
1063
1064 for (i = 0; i < mgr->num_cards; i++) {
1065 if (mgr->chip[i])
1066 snd_card_free(mgr->chip[i]->card);
1067 }
1068
1069 /* stop mailbox */
1070 snd_mixart_exit_mailbox(mgr);
1071
1072 /* release irq */
1073 if (mgr->irq >= 0)
1074 free_irq(mgr->irq, mgr);
1075
1076 /* reset board if some firmware was loaded */
1077 if(mgr->dsp_loaded) {
1078 snd_mixart_reset_board(mgr);
1079 dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1080 }
1081
1082 /* release the i/o ports */
1083 for (i = 0; i < 2; ++i)
1084 iounmap(mgr->mem[i].virt);
1085
1086 pci_release_regions(mgr->pci);
1087
1088 /* free flowarray */
1089 if(mgr->flowinfo.area) {
1090 snd_dma_free_pages(&mgr->flowinfo);
1091 mgr->flowinfo.area = NULL;
1092 }
1093 /* free bufferarray */
1094 if(mgr->bufferinfo.area) {
1095 snd_dma_free_pages(&mgr->bufferinfo);
1096 mgr->bufferinfo.area = NULL;
1097 }
1098
1099 pci_disable_device(mgr->pci);
1100 kfree(mgr);
1101 return 0;
1102 }
1103
1104 /*
1105 * proc interface
1106 */
1107
1108 /*
1109 mixart_BA0 proc interface for BAR 0 - read callback
1110 */
snd_mixart_BA0_read(struct snd_info_entry * entry,void * file_private_data,struct file * file,char __user * buf,size_t count,loff_t pos)1111 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1112 void *file_private_data,
1113 struct file *file, char __user *buf,
1114 size_t count, loff_t pos)
1115 {
1116 struct mixart_mgr *mgr = entry->private_data;
1117
1118 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1119 if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1120 return -EFAULT;
1121 return count;
1122 }
1123
1124 /*
1125 mixart_BA1 proc interface for BAR 1 - read callback
1126 */
snd_mixart_BA1_read(struct snd_info_entry * entry,void * file_private_data,struct file * file,char __user * buf,size_t count,loff_t pos)1127 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1128 void *file_private_data,
1129 struct file *file, char __user *buf,
1130 size_t count, loff_t pos)
1131 {
1132 struct mixart_mgr *mgr = entry->private_data;
1133
1134 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1135 if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1136 return -EFAULT;
1137 return count;
1138 }
1139
1140 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1141 .read = snd_mixart_BA0_read,
1142 };
1143
1144 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1145 .read = snd_mixart_BA1_read,
1146 };
1147
1148
snd_mixart_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)1149 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1150 struct snd_info_buffer *buffer)
1151 {
1152 struct snd_mixart *chip = entry->private_data;
1153 u32 ref;
1154
1155 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1156
1157 /* stats available when embedded OS is running */
1158 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1159 snd_iprintf(buffer, "- hardware -\n");
1160 switch (chip->mgr->board_type ) {
1161 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1162 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1163 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1164 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1165 }
1166
1167 snd_iprintf(buffer, "- system load -\n");
1168
1169 /* get perf reference */
1170
1171 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1172
1173 if (ref) {
1174 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1175 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1176 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1177
1178 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1179 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1180 snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1181 }
1182 } /* endif elf loaded */
1183 }
1184
snd_mixart_proc_init(struct snd_mixart * chip)1185 static void snd_mixart_proc_init(struct snd_mixart *chip)
1186 {
1187 struct snd_info_entry *entry;
1188
1189 /* text interface to read perf and temp meters */
1190 snd_card_ro_proc_new(chip->card, "board_info", chip,
1191 snd_mixart_proc_read);
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 */
snd_mixart_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)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 err = pci_enable_device(pci);
1232 if (err < 0)
1233 return err;
1234 pci_set_master(pci);
1235
1236 /* check if we can restrict PCI DMA transfers to 32 bits */
1237 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1238 dev_err(&pci->dev,
1239 "architecture does not support 32bit PCI busmaster DMA\n");
1240 pci_disable_device(pci);
1241 return -ENXIO;
1242 }
1243
1244 /*
1245 */
1246 mgr = kzalloc_obj(*mgr);
1247 if (! mgr) {
1248 pci_disable_device(pci);
1249 return -ENOMEM;
1250 }
1251
1252 mgr->pci = pci;
1253 mgr->irq = -1;
1254
1255 /* resource assignment */
1256 err = pci_request_regions(pci, CARD_NAME);
1257 if (err < 0) {
1258 kfree(mgr);
1259 pci_disable_device(pci);
1260 return err;
1261 }
1262 for (i = 0; i < 2; i++) {
1263 mgr->mem[i].phys = pci_resource_start(pci, i);
1264 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1265 if (!mgr->mem[i].virt) {
1266 dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1267 mgr->mem[i].phys);
1268 snd_mixart_free(mgr);
1269 return -EBUSY;
1270 }
1271 }
1272
1273 if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1274 snd_mixart_threaded_irq, IRQF_SHARED,
1275 KBUILD_MODNAME, mgr)) {
1276 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1277 snd_mixart_free(mgr);
1278 return -EBUSY;
1279 }
1280 mgr->irq = pci->irq;
1281
1282 /* init mailbox */
1283 mgr->msg_fifo_readptr = 0;
1284 mgr->msg_fifo_writeptr = 0;
1285
1286 mutex_init(&mgr->lock);
1287 mutex_init(&mgr->msg_lock);
1288 init_waitqueue_head(&mgr->msg_sleep);
1289 atomic_set(&mgr->msg_processed, 0);
1290
1291 /* init setup mutex*/
1292 mutex_init(&mgr->setup_mutex);
1293
1294 /* card assignment */
1295 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1296 for (i = 0; i < mgr->num_cards; i++) {
1297 struct snd_card *card;
1298 char tmpid[16];
1299 int idx;
1300
1301 if (index[dev] < 0)
1302 idx = index[dev];
1303 else
1304 idx = index[dev] + i;
1305 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1306 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1307 0, &card);
1308
1309 if (err < 0) {
1310 dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1311 snd_mixart_free(mgr);
1312 return err;
1313 }
1314
1315 strscpy(card->driver, CARD_NAME);
1316 snprintf(card->shortname, sizeof(card->shortname),
1317 "Digigram miXart [PCM #%d]", i);
1318 snprintf(card->longname, sizeof(card->longname),
1319 "Digigram miXart at 0x%lx & 0x%lx, irq %i [PCM #%d]",
1320 mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq, i);
1321
1322 err = snd_mixart_create(mgr, card, i);
1323 if (err < 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 err = snd_card_register(card);
1335 if (err < 0) {
1336 snd_mixart_free(mgr);
1337 return err;
1338 }
1339 }
1340
1341 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1342 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1343
1344 /* create array of streaminfo */
1345 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1346 sizeof(struct mixart_flowinfo)) );
1347 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1348 size, &mgr->flowinfo) < 0) {
1349 snd_mixart_free(mgr);
1350 return -ENOMEM;
1351 }
1352 /* init streaminfo_array */
1353 memset(mgr->flowinfo.area, 0, size);
1354
1355 /* create array of bufferinfo */
1356 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1357 sizeof(struct mixart_bufferinfo)) );
1358 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1359 size, &mgr->bufferinfo) < 0) {
1360 snd_mixart_free(mgr);
1361 return -ENOMEM;
1362 }
1363 /* init bufferinfo_array */
1364 memset(mgr->bufferinfo.area, 0, size);
1365
1366 /* set up firmware */
1367 err = snd_mixart_setup_firmware(mgr);
1368 if (err < 0) {
1369 snd_mixart_free(mgr);
1370 return err;
1371 }
1372
1373 pci_set_drvdata(pci, mgr);
1374 dev++;
1375 return 0;
1376 }
1377
snd_mixart_remove(struct pci_dev * pci)1378 static void snd_mixart_remove(struct pci_dev *pci)
1379 {
1380 snd_mixart_free(pci_get_drvdata(pci));
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