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(sizeof(*buf), GFP_KERNEL);
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 mutex_lock(&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 mutex_unlock(&mgr->setup_mutex);
623 return err;
624 }
625
626 if (subs->runtime->buffer_changed) {
627 struct mixart_bufferinfo *bufferinfo;
628 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
629 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
630 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
631 }
632
633 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
634 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
635 bufferinfo[i].available_length = subs->runtime->dma_bytes;
636 /* bufferinfo[i].buffer_id is already defined */
637
638 dev_dbg(chip->card->dev,
639 "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
640 i, bufferinfo[i].buffer_address,
641 bufferinfo[i].available_length,
642 subs->number);
643 }
644 mutex_unlock(&mgr->setup_mutex);
645
646 return 0;
647 }
648
snd_mixart_hw_free(struct snd_pcm_substream * subs)649 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
650 {
651 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
652 mixart_sync_nonblock_events(chip->mgr);
653 return 0;
654 }
655
656
657
658 /*
659 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
660 */
661 static const struct snd_pcm_hardware snd_mixart_analog_caps =
662 {
663 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
664 SNDRV_PCM_INFO_MMAP_VALID |
665 SNDRV_PCM_INFO_PAUSE),
666 .formats = ( SNDRV_PCM_FMTBIT_U8 |
667 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
668 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
669 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
670 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
671 .rate_min = 8000,
672 .rate_max = 48000,
673 .channels_min = 1,
674 .channels_max = 2,
675 .buffer_bytes_max = (32*1024),
676 .period_bytes_min = 256, /* 256 frames U8 mono*/
677 .period_bytes_max = (16*1024),
678 .periods_min = 2,
679 .periods_max = (32*1024/256),
680 };
681
682 static const struct snd_pcm_hardware snd_mixart_digital_caps =
683 {
684 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
685 SNDRV_PCM_INFO_MMAP_VALID |
686 SNDRV_PCM_INFO_PAUSE),
687 .formats = ( SNDRV_PCM_FMTBIT_U8 |
688 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
689 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
690 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
691 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
692 .rate_min = 32000,
693 .rate_max = 48000,
694 .channels_min = 1,
695 .channels_max = 2,
696 .buffer_bytes_max = (32*1024),
697 .period_bytes_min = 256, /* 256 frames U8 mono*/
698 .period_bytes_max = (16*1024),
699 .periods_min = 2,
700 .periods_max = (32*1024/256),
701 };
702
703
snd_mixart_playback_open(struct snd_pcm_substream * subs)704 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
705 {
706 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
707 struct mixart_mgr *mgr = chip->mgr;
708 struct snd_pcm_runtime *runtime = subs->runtime;
709 struct snd_pcm *pcm = subs->pcm;
710 struct mixart_stream *stream;
711 struct mixart_pipe *pipe;
712 int err = 0;
713 int pcm_number;
714
715 mutex_lock(&mgr->setup_mutex);
716
717 if ( pcm == chip->pcm ) {
718 pcm_number = MIXART_PCM_ANALOG;
719 runtime->hw = snd_mixart_analog_caps;
720 } else {
721 snd_BUG_ON(pcm != chip->pcm_dig);
722 pcm_number = MIXART_PCM_DIGITAL;
723 runtime->hw = snd_mixart_digital_caps;
724 }
725 dev_dbg(chip->card->dev,
726 "snd_mixart_playback_open C%d/P%d/Sub%d\n",
727 chip->chip_idx, pcm_number, subs->number);
728
729 /* get stream info */
730 stream = &(chip->playback_stream[pcm_number][subs->number]);
731
732 if (stream->status != MIXART_STREAM_STATUS_FREE){
733 /* streams in use */
734 dev_err(chip->card->dev,
735 "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
736 chip->chip_idx, pcm_number, subs->number);
737 err = -EBUSY;
738 goto _exit_open;
739 }
740
741 /* get pipe pointer (out pipe) */
742 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
743
744 if (pipe == NULL) {
745 err = -EINVAL;
746 goto _exit_open;
747 }
748
749 /* start the pipe if necessary */
750 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
751 if( err < 0 ) {
752 dev_err(chip->card->dev, "error starting pipe!\n");
753 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
754 err = -EINVAL;
755 goto _exit_open;
756 }
757
758 stream->pipe = pipe;
759 stream->pcm_number = pcm_number;
760 stream->status = MIXART_STREAM_STATUS_OPEN;
761 stream->substream = subs;
762 stream->channels = 0; /* not configured yet */
763
764 runtime->private_data = stream;
765
766 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
767 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
768
769 /* if a sample rate is already used, another stream cannot change */
770 if(mgr->ref_count_rate++) {
771 if(mgr->sample_rate) {
772 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
773 }
774 }
775
776 _exit_open:
777 mutex_unlock(&mgr->setup_mutex);
778
779 return err;
780 }
781
782
snd_mixart_capture_open(struct snd_pcm_substream * subs)783 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
784 {
785 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
786 struct mixart_mgr *mgr = chip->mgr;
787 struct snd_pcm_runtime *runtime = subs->runtime;
788 struct snd_pcm *pcm = subs->pcm;
789 struct mixart_stream *stream;
790 struct mixart_pipe *pipe;
791 int err = 0;
792 int pcm_number;
793
794 mutex_lock(&mgr->setup_mutex);
795
796 if ( pcm == chip->pcm ) {
797 pcm_number = MIXART_PCM_ANALOG;
798 runtime->hw = snd_mixart_analog_caps;
799 } else {
800 snd_BUG_ON(pcm != chip->pcm_dig);
801 pcm_number = MIXART_PCM_DIGITAL;
802 runtime->hw = snd_mixart_digital_caps;
803 }
804
805 runtime->hw.channels_min = 2; /* for instance, no mono */
806
807 dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
808 chip->chip_idx, pcm_number, subs->number);
809
810 /* get stream info */
811 stream = &(chip->capture_stream[pcm_number]);
812
813 if (stream->status != MIXART_STREAM_STATUS_FREE){
814 /* streams in use */
815 dev_err(chip->card->dev,
816 "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
817 chip->chip_idx, pcm_number, subs->number);
818 err = -EBUSY;
819 goto _exit_open;
820 }
821
822 /* get pipe pointer (in pipe) */
823 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
824
825 if (pipe == NULL) {
826 err = -EINVAL;
827 goto _exit_open;
828 }
829
830 /* start the pipe if necessary */
831 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
832 if( err < 0 ) {
833 dev_err(chip->card->dev, "error starting pipe!\n");
834 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
835 err = -EINVAL;
836 goto _exit_open;
837 }
838
839 stream->pipe = pipe;
840 stream->pcm_number = pcm_number;
841 stream->status = MIXART_STREAM_STATUS_OPEN;
842 stream->substream = subs;
843 stream->channels = 0; /* not configured yet */
844
845 runtime->private_data = stream;
846
847 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
848 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
849
850 /* if a sample rate is already used, another stream cannot change */
851 if(mgr->ref_count_rate++) {
852 if(mgr->sample_rate) {
853 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
854 }
855 }
856
857 _exit_open:
858 mutex_unlock(&mgr->setup_mutex);
859
860 return err;
861 }
862
863
864
snd_mixart_close(struct snd_pcm_substream * subs)865 static int snd_mixart_close(struct snd_pcm_substream *subs)
866 {
867 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
868 struct mixart_mgr *mgr = chip->mgr;
869 struct mixart_stream *stream = subs->runtime->private_data;
870
871 mutex_lock(&mgr->setup_mutex);
872
873 dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
874 chip->chip_idx, stream->pcm_number, subs->number);
875
876 /* sample rate released */
877 if(--mgr->ref_count_rate == 0) {
878 mgr->sample_rate = 0;
879 }
880
881 /* delete pipe */
882 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
883
884 dev_err(chip->card->dev,
885 "error snd_mixart_kill_ref_pipe C%dP%d\n",
886 chip->chip_idx, stream->pcm_number);
887 }
888
889 stream->pipe = NULL;
890 stream->status = MIXART_STREAM_STATUS_FREE;
891 stream->substream = NULL;
892
893 mutex_unlock(&mgr->setup_mutex);
894 return 0;
895 }
896
897
snd_mixart_stream_pointer(struct snd_pcm_substream * subs)898 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
899 {
900 struct snd_pcm_runtime *runtime = subs->runtime;
901 struct mixart_stream *stream = runtime->private_data;
902
903 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
904 }
905
906
907
908 static const struct snd_pcm_ops snd_mixart_playback_ops = {
909 .open = snd_mixart_playback_open,
910 .close = snd_mixart_close,
911 .prepare = snd_mixart_prepare,
912 .hw_params = snd_mixart_hw_params,
913 .hw_free = snd_mixart_hw_free,
914 .trigger = snd_mixart_trigger,
915 .pointer = snd_mixart_stream_pointer,
916 };
917
918 static const struct snd_pcm_ops snd_mixart_capture_ops = {
919 .open = snd_mixart_capture_open,
920 .close = snd_mixart_close,
921 .prepare = snd_mixart_prepare,
922 .hw_params = snd_mixart_hw_params,
923 .hw_free = snd_mixart_hw_free,
924 .trigger = snd_mixart_trigger,
925 .pointer = snd_mixart_stream_pointer,
926 };
927
preallocate_buffers(struct snd_mixart * chip,struct snd_pcm * pcm)928 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
929 {
930 #if 0
931 struct snd_pcm_substream *subs;
932 int stream;
933
934 for (stream = 0; stream < 2; stream++) {
935 int idx = 0;
936 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
937 /* set up the unique device id with the chip index */
938 subs->dma_device.id = subs->pcm->device << 16 |
939 subs->stream << 8 | (subs->number + 1) |
940 (chip->chip_idx + 1) << 24;
941 }
942 #endif
943 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
944 &chip->mgr->pci->dev,
945 32*1024, 32*1024);
946 }
947
948 /*
949 */
snd_mixart_pcm_analog(struct snd_mixart * chip)950 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
951 {
952 int err;
953 struct snd_pcm *pcm;
954 char name[32];
955
956 sprintf(name, "miXart analog %d", chip->chip_idx);
957 err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
958 MIXART_PLAYBACK_STREAMS,
959 MIXART_CAPTURE_STREAMS, &pcm);
960 if (err < 0) {
961 dev_err(chip->card->dev,
962 "cannot create the analog pcm %d\n", chip->chip_idx);
963 return err;
964 }
965
966 pcm->private_data = chip;
967
968 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
969 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
970
971 pcm->info_flags = 0;
972 pcm->nonatomic = true;
973 strcpy(pcm->name, name);
974
975 preallocate_buffers(chip, pcm);
976
977 chip->pcm = pcm;
978 return 0;
979 }
980
981
982 /*
983 */
snd_mixart_pcm_digital(struct snd_mixart * chip)984 static int snd_mixart_pcm_digital(struct snd_mixart *chip)
985 {
986 int err;
987 struct snd_pcm *pcm;
988 char name[32];
989
990 sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
991 err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
992 MIXART_PLAYBACK_STREAMS,
993 MIXART_CAPTURE_STREAMS, &pcm);
994 if (err < 0) {
995 dev_err(chip->card->dev,
996 "cannot create the digital pcm %d\n", chip->chip_idx);
997 return err;
998 }
999
1000 pcm->private_data = chip;
1001
1002 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
1003 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
1004
1005 pcm->info_flags = 0;
1006 pcm->nonatomic = true;
1007 strcpy(pcm->name, name);
1008
1009 preallocate_buffers(chip, pcm);
1010
1011 chip->pcm_dig = pcm;
1012 return 0;
1013 }
1014
snd_mixart_chip_free(struct snd_mixart * chip)1015 static int snd_mixart_chip_free(struct snd_mixart *chip)
1016 {
1017 kfree(chip);
1018 return 0;
1019 }
1020
snd_mixart_chip_dev_free(struct snd_device * device)1021 static int snd_mixart_chip_dev_free(struct snd_device *device)
1022 {
1023 struct snd_mixart *chip = device->device_data;
1024 return snd_mixart_chip_free(chip);
1025 }
1026
1027
1028 /*
1029 */
snd_mixart_create(struct mixart_mgr * mgr,struct snd_card * card,int idx)1030 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1031 {
1032 int err;
1033 struct snd_mixart *chip;
1034 static const struct snd_device_ops ops = {
1035 .dev_free = snd_mixart_chip_dev_free,
1036 };
1037
1038 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1039 if (!chip)
1040 return -ENOMEM;
1041
1042 chip->card = card;
1043 chip->chip_idx = idx;
1044 chip->mgr = mgr;
1045 card->sync_irq = mgr->irq;
1046
1047 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1048 if (err < 0) {
1049 snd_mixart_chip_free(chip);
1050 return err;
1051 }
1052
1053 mgr->chip[idx] = chip;
1054 return 0;
1055 }
1056
snd_mixart_create_pcm(struct snd_mixart * chip)1057 int snd_mixart_create_pcm(struct snd_mixart* chip)
1058 {
1059 int err;
1060
1061 err = snd_mixart_pcm_analog(chip);
1062 if (err < 0)
1063 return err;
1064
1065 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1066
1067 err = snd_mixart_pcm_digital(chip);
1068 if (err < 0)
1069 return err;
1070 }
1071 return err;
1072 }
1073
1074
1075 /*
1076 * release all the cards assigned to a manager instance
1077 */
snd_mixart_free(struct mixart_mgr * mgr)1078 static int snd_mixart_free(struct mixart_mgr *mgr)
1079 {
1080 unsigned int i;
1081
1082 for (i = 0; i < mgr->num_cards; i++) {
1083 if (mgr->chip[i])
1084 snd_card_free(mgr->chip[i]->card);
1085 }
1086
1087 /* stop mailbox */
1088 snd_mixart_exit_mailbox(mgr);
1089
1090 /* release irq */
1091 if (mgr->irq >= 0)
1092 free_irq(mgr->irq, mgr);
1093
1094 /* reset board if some firmware was loaded */
1095 if(mgr->dsp_loaded) {
1096 snd_mixart_reset_board(mgr);
1097 dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1098 }
1099
1100 /* release the i/o ports */
1101 for (i = 0; i < 2; ++i)
1102 iounmap(mgr->mem[i].virt);
1103
1104 pci_release_regions(mgr->pci);
1105
1106 /* free flowarray */
1107 if(mgr->flowinfo.area) {
1108 snd_dma_free_pages(&mgr->flowinfo);
1109 mgr->flowinfo.area = NULL;
1110 }
1111 /* free bufferarray */
1112 if(mgr->bufferinfo.area) {
1113 snd_dma_free_pages(&mgr->bufferinfo);
1114 mgr->bufferinfo.area = NULL;
1115 }
1116
1117 pci_disable_device(mgr->pci);
1118 kfree(mgr);
1119 return 0;
1120 }
1121
1122 /*
1123 * proc interface
1124 */
1125
1126 /*
1127 mixart_BA0 proc interface for BAR 0 - read callback
1128 */
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)1129 static ssize_t snd_mixart_BA0_read(struct snd_info_entry *entry,
1130 void *file_private_data,
1131 struct file *file, char __user *buf,
1132 size_t count, loff_t pos)
1133 {
1134 struct mixart_mgr *mgr = entry->private_data;
1135
1136 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1137 if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
1138 return -EFAULT;
1139 return count;
1140 }
1141
1142 /*
1143 mixart_BA1 proc interface for BAR 1 - read callback
1144 */
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)1145 static ssize_t snd_mixart_BA1_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_REG(mgr, pos), count))
1154 return -EFAULT;
1155 return count;
1156 }
1157
1158 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1159 .read = snd_mixart_BA0_read,
1160 };
1161
1162 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1163 .read = snd_mixart_BA1_read,
1164 };
1165
1166
snd_mixart_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)1167 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1168 struct snd_info_buffer *buffer)
1169 {
1170 struct snd_mixart *chip = entry->private_data;
1171 u32 ref;
1172
1173 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1174
1175 /* stats available when embedded OS is running */
1176 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1177 snd_iprintf(buffer, "- hardware -\n");
1178 switch (chip->mgr->board_type ) {
1179 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1180 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1181 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1182 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1183 }
1184
1185 snd_iprintf(buffer, "- system load -\n");
1186
1187 /* get perf reference */
1188
1189 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1190
1191 if (ref) {
1192 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1193 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1194 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1195
1196 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1197 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1198 snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1199 }
1200 } /* endif elf loaded */
1201 }
1202
snd_mixart_proc_init(struct snd_mixart * chip)1203 static void snd_mixart_proc_init(struct snd_mixart *chip)
1204 {
1205 struct snd_info_entry *entry;
1206
1207 /* text interface to read perf and temp meters */
1208 snd_card_ro_proc_new(chip->card, "board_info", chip,
1209 snd_mixart_proc_read);
1210
1211 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1212 entry->content = SNDRV_INFO_CONTENT_DATA;
1213 entry->private_data = chip->mgr;
1214 entry->c.ops = &snd_mixart_proc_ops_BA0;
1215 entry->size = MIXART_BA0_SIZE;
1216 }
1217 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1218 entry->content = SNDRV_INFO_CONTENT_DATA;
1219 entry->private_data = chip->mgr;
1220 entry->c.ops = &snd_mixart_proc_ops_BA1;
1221 entry->size = MIXART_BA1_SIZE;
1222 }
1223 }
1224 /* end of proc interface */
1225
1226
1227 /*
1228 * probe function - creates the card manager
1229 */
snd_mixart_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)1230 static int snd_mixart_probe(struct pci_dev *pci,
1231 const struct pci_device_id *pci_id)
1232 {
1233 static int dev;
1234 struct mixart_mgr *mgr;
1235 unsigned int i;
1236 int err;
1237 size_t size;
1238
1239 /*
1240 */
1241 if (dev >= SNDRV_CARDS)
1242 return -ENODEV;
1243 if (! enable[dev]) {
1244 dev++;
1245 return -ENOENT;
1246 }
1247
1248 /* enable PCI device */
1249 err = pci_enable_device(pci);
1250 if (err < 0)
1251 return err;
1252 pci_set_master(pci);
1253
1254 /* check if we can restrict PCI DMA transfers to 32 bits */
1255 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1256 dev_err(&pci->dev,
1257 "architecture does not support 32bit PCI busmaster DMA\n");
1258 pci_disable_device(pci);
1259 return -ENXIO;
1260 }
1261
1262 /*
1263 */
1264 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1265 if (! mgr) {
1266 pci_disable_device(pci);
1267 return -ENOMEM;
1268 }
1269
1270 mgr->pci = pci;
1271 mgr->irq = -1;
1272
1273 /* resource assignment */
1274 err = pci_request_regions(pci, CARD_NAME);
1275 if (err < 0) {
1276 kfree(mgr);
1277 pci_disable_device(pci);
1278 return err;
1279 }
1280 for (i = 0; i < 2; i++) {
1281 mgr->mem[i].phys = pci_resource_start(pci, i);
1282 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1283 if (!mgr->mem[i].virt) {
1284 dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1285 mgr->mem[i].phys);
1286 snd_mixart_free(mgr);
1287 return -EBUSY;
1288 }
1289 }
1290
1291 if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1292 snd_mixart_threaded_irq, IRQF_SHARED,
1293 KBUILD_MODNAME, mgr)) {
1294 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1295 snd_mixart_free(mgr);
1296 return -EBUSY;
1297 }
1298 mgr->irq = pci->irq;
1299
1300 /* init mailbox */
1301 mgr->msg_fifo_readptr = 0;
1302 mgr->msg_fifo_writeptr = 0;
1303
1304 mutex_init(&mgr->lock);
1305 mutex_init(&mgr->msg_lock);
1306 init_waitqueue_head(&mgr->msg_sleep);
1307 atomic_set(&mgr->msg_processed, 0);
1308
1309 /* init setup mutex*/
1310 mutex_init(&mgr->setup_mutex);
1311
1312 /* card assignment */
1313 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1314 for (i = 0; i < mgr->num_cards; i++) {
1315 struct snd_card *card;
1316 char tmpid[16];
1317 int idx;
1318
1319 if (index[dev] < 0)
1320 idx = index[dev];
1321 else
1322 idx = index[dev] + i;
1323 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1324 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1325 0, &card);
1326
1327 if (err < 0) {
1328 dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1329 snd_mixart_free(mgr);
1330 return err;
1331 }
1332
1333 strcpy(card->driver, CARD_NAME);
1334 snprintf(card->shortname, sizeof(card->shortname),
1335 "Digigram miXart [PCM #%d]", i);
1336 snprintf(card->longname, sizeof(card->longname),
1337 "Digigram miXart at 0x%lx & 0x%lx, irq %i [PCM #%d]",
1338 mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq, i);
1339
1340 err = snd_mixart_create(mgr, card, i);
1341 if (err < 0) {
1342 snd_card_free(card);
1343 snd_mixart_free(mgr);
1344 return err;
1345 }
1346
1347 if(i==0) {
1348 /* init proc interface only for chip0 */
1349 snd_mixart_proc_init(mgr->chip[i]);
1350 }
1351
1352 err = snd_card_register(card);
1353 if (err < 0) {
1354 snd_mixart_free(mgr);
1355 return err;
1356 }
1357 }
1358
1359 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1360 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1361
1362 /* create array of streaminfo */
1363 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1364 sizeof(struct mixart_flowinfo)) );
1365 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1366 size, &mgr->flowinfo) < 0) {
1367 snd_mixart_free(mgr);
1368 return -ENOMEM;
1369 }
1370 /* init streaminfo_array */
1371 memset(mgr->flowinfo.area, 0, size);
1372
1373 /* create array of bufferinfo */
1374 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1375 sizeof(struct mixart_bufferinfo)) );
1376 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1377 size, &mgr->bufferinfo) < 0) {
1378 snd_mixart_free(mgr);
1379 return -ENOMEM;
1380 }
1381 /* init bufferinfo_array */
1382 memset(mgr->bufferinfo.area, 0, size);
1383
1384 /* set up firmware */
1385 err = snd_mixart_setup_firmware(mgr);
1386 if (err < 0) {
1387 snd_mixart_free(mgr);
1388 return err;
1389 }
1390
1391 pci_set_drvdata(pci, mgr);
1392 dev++;
1393 return 0;
1394 }
1395
snd_mixart_remove(struct pci_dev * pci)1396 static void snd_mixart_remove(struct pci_dev *pci)
1397 {
1398 snd_mixart_free(pci_get_drvdata(pci));
1399 }
1400
1401 static struct pci_driver mixart_driver = {
1402 .name = KBUILD_MODNAME,
1403 .id_table = snd_mixart_ids,
1404 .probe = snd_mixart_probe,
1405 .remove = snd_mixart_remove,
1406 };
1407
1408 module_pci_driver(mixart_driver);
1409