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 MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
36
37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
40
41 module_param_array(index, int, NULL, 0444);
42 MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
43 module_param_array(id, charp, NULL, 0444);
44 MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
45 module_param_array(enable, bool, NULL, 0444);
46 MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
47
48 /*
49 */
50
51 static const struct pci_device_id snd_mixart_ids[] = {
52 { PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
53 { 0, }
54 };
55
56 MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
57
58
mixart_set_pipe_state(struct mixart_mgr * mgr,struct mixart_pipe * pipe,int start)59 static int mixart_set_pipe_state(struct mixart_mgr *mgr,
60 struct mixart_pipe *pipe, int start)
61 {
62 struct mixart_group_state_req group_state;
63 struct mixart_group_state_resp group_state_resp;
64 struct mixart_msg request;
65 int err;
66 u32 system_msg_uid;
67
68 switch(pipe->status) {
69 case PIPE_RUNNING:
70 case PIPE_CLOCK_SET:
71 if(start) return 0; /* already started */
72 break;
73 case PIPE_STOPPED:
74 if(!start) return 0; /* already stopped */
75 break;
76 default:
77 dev_err(&mgr->pci->dev,
78 "error mixart_set_pipe_state called with wrong pipe->status!\n");
79 return -EINVAL; /* function called with wrong pipe status */
80 }
81
82 system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
83
84 /* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
85
86 request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
87 request.uid = (struct mixart_uid){0,0};
88 request.data = &system_msg_uid;
89 request.size = sizeof(system_msg_uid);
90
91 err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
92 if(err) {
93 dev_err(&mgr->pci->dev,
94 "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
95 return err;
96 }
97
98 /* start or stop the pipe (1 pipe) */
99
100 memset(&group_state, 0, sizeof(group_state));
101 group_state.pipe_count = 1;
102 group_state.pipe_uid[0] = pipe->group_uid;
103
104 if(start)
105 request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
106 else
107 request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
108
109 request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
110 request.data = &group_state;
111 request.size = sizeof(group_state);
112
113 err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
114 if (err < 0 || group_state_resp.txx_status != 0) {
115 dev_err(&mgr->pci->dev,
116 "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n",
117 err, group_state_resp.txx_status);
118 return -EINVAL;
119 }
120
121 if(start) {
122 u32 stat = 0;
123
124 group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
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_START_STREAM_GRP_PACKET err=%x stat=%x !\n",
130 err, group_state_resp.txx_status);
131 return -EINVAL;
132 }
133
134 /* in case of start send a synchro top */
135
136 request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
137 request.uid = (struct mixart_uid){0,0};
138 request.data = NULL;
139 request.size = 0;
140
141 err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
142 if (err < 0 || stat != 0) {
143 dev_err(&mgr->pci->dev,
144 "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n",
145 err, stat);
146 return -EINVAL;
147 }
148
149 pipe->status = PIPE_RUNNING;
150 }
151 else /* !start */
152 pipe->status = PIPE_STOPPED;
153
154 return 0;
155 }
156
157
mixart_set_clock(struct mixart_mgr * mgr,struct mixart_pipe * pipe,unsigned int rate)158 static int mixart_set_clock(struct mixart_mgr *mgr,
159 struct mixart_pipe *pipe, unsigned int rate)
160 {
161 struct mixart_msg request;
162 struct mixart_clock_properties clock_properties;
163 struct mixart_clock_properties_resp clock_prop_resp;
164 int err;
165
166 switch(pipe->status) {
167 case PIPE_CLOCK_SET:
168 break;
169 case PIPE_RUNNING:
170 if(rate != 0)
171 break;
172 fallthrough;
173 default:
174 if(rate == 0)
175 return 0; /* nothing to do */
176 else {
177 dev_err(&mgr->pci->dev,
178 "error mixart_set_clock(%d) called with wrong pipe->status !\n",
179 rate);
180 return -EINVAL;
181 }
182 }
183
184 memset(&clock_properties, 0, sizeof(clock_properties));
185 clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
186 clock_properties.clock_mode = CM_STANDALONE;
187 clock_properties.frequency = rate;
188 clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
189 clock_properties.uid_caller[0] = pipe->group_uid;
190
191 dev_dbg(&mgr->pci->dev, "mixart_set_clock to %d kHz\n", rate);
192
193 request.message_id = MSG_CLOCK_SET_PROPERTIES;
194 request.uid = mgr->uid_console_manager;
195 request.data = &clock_properties;
196 request.size = sizeof(clock_properties);
197
198 err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
199 if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
200 dev_err(&mgr->pci->dev,
201 "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n",
202 err, clock_prop_resp.status, clock_prop_resp.clock_mode);
203 return -EINVAL;
204 }
205
206 if(rate) pipe->status = PIPE_CLOCK_SET;
207 else pipe->status = PIPE_RUNNING;
208
209 return 0;
210 }
211
212
213 /*
214 * Allocate or reference output pipe for analog IOs (pcmp0/1)
215 */
216 struct mixart_pipe *
snd_mixart_add_ref_pipe(struct snd_mixart * chip,int pcm_number,int capture,int monitoring)217 snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
218 int monitoring)
219 {
220 int stream_count;
221 struct mixart_pipe *pipe;
222 struct mixart_msg request;
223
224 if(capture) {
225 if (pcm_number == MIXART_PCM_ANALOG) {
226 pipe = &(chip->pipe_in_ana); /* analog inputs */
227 } else {
228 pipe = &(chip->pipe_in_dig); /* digital inputs */
229 }
230 request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
231 stream_count = MIXART_CAPTURE_STREAMS;
232 } else {
233 if (pcm_number == MIXART_PCM_ANALOG) {
234 pipe = &(chip->pipe_out_ana); /* analog outputs */
235 } else {
236 pipe = &(chip->pipe_out_dig); /* digital outputs */
237 }
238 request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
239 stream_count = MIXART_PLAYBACK_STREAMS;
240 }
241
242 /* a new stream is opened and there are already all streams in use */
243 if( (monitoring == 0) && (pipe->references >= stream_count) ) {
244 return NULL;
245 }
246
247 /* pipe is not yet defined */
248 if( pipe->status == PIPE_UNDEFINED ) {
249 int err, i;
250 struct {
251 struct mixart_streaming_group_req sgroup_req;
252 struct mixart_streaming_group sgroup_resp;
253 } *buf;
254
255 dev_dbg(chip->card->dev,
256 "add_ref_pipe audio chip(%d) pcm(%d)\n",
257 chip->chip_idx, pcm_number);
258
259 buf = kmalloc(sizeof(*buf), GFP_KERNEL);
260 if (!buf)
261 return NULL;
262
263 request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
264 request.data = &buf->sgroup_req;
265 request.size = sizeof(buf->sgroup_req);
266
267 memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
268
269 buf->sgroup_req.stream_count = stream_count;
270 buf->sgroup_req.channel_count = 2;
271 buf->sgroup_req.latency = 256;
272 buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
273
274 for (i=0; i<stream_count; i++) {
275 int j;
276 struct mixart_flowinfo *flowinfo;
277 struct mixart_bufferinfo *bufferinfo;
278
279 /* we don't yet know the format, so config 16 bit pcm audio for instance */
280 buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
281 buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
282 buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
283
284 /* find the right bufferinfo_array */
285 j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
286 if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
287
288 buf->sgroup_req.flow_entry[i] = j;
289
290 flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
291 flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
292 flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
293
294 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
295 bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
296 bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
297
298 /* construct the identifier of the stream buffer received in the interrupts ! */
299 bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
300 if(capture) {
301 bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
302 }
303 }
304
305 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
306 if((err < 0) || (buf->sgroup_resp.status != 0)) {
307 dev_err(chip->card->dev,
308 "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n",
309 err, buf->sgroup_resp.status);
310 kfree(buf);
311 return NULL;
312 }
313
314 pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
315 pipe->stream_count = buf->sgroup_resp.stream_count;
316 /* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
317
318 pipe->status = PIPE_STOPPED;
319 kfree(buf);
320 }
321
322 if(monitoring) pipe->monitoring = 1;
323 else pipe->references++;
324
325 return pipe;
326 }
327
328
snd_mixart_kill_ref_pipe(struct mixart_mgr * mgr,struct mixart_pipe * pipe,int monitoring)329 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
330 struct mixart_pipe *pipe, int monitoring)
331 {
332 int err = 0;
333
334 if(pipe->status == PIPE_UNDEFINED)
335 return 0;
336
337 if(monitoring)
338 pipe->monitoring = 0;
339 else
340 pipe->references--;
341
342 if((pipe->references <= 0) && (pipe->monitoring == 0)) {
343
344 struct mixart_msg request;
345 struct mixart_delete_group_resp delete_resp;
346
347 /* release the clock */
348 err = mixart_set_clock( mgr, pipe, 0);
349 if( err < 0 ) {
350 dev_err(&mgr->pci->dev,
351 "mixart_set_clock(0) return error!\n");
352 }
353
354 /* stop the pipe */
355 err = mixart_set_pipe_state(mgr, pipe, 0);
356 if( err < 0 ) {
357 dev_err(&mgr->pci->dev, "error stopping pipe!\n");
358 }
359
360 request.message_id = MSG_STREAM_DELETE_GROUP;
361 request.uid = (struct mixart_uid){0,0};
362 request.data = &pipe->group_uid; /* the streaming group ! */
363 request.size = sizeof(pipe->group_uid);
364
365 /* delete the pipe */
366 err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
367 if ((err < 0) || (delete_resp.status != 0)) {
368 dev_err(&mgr->pci->dev,
369 "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n",
370 err, delete_resp.status);
371 }
372
373 pipe->group_uid = (struct mixart_uid){0,0};
374 pipe->stream_count = 0;
375 pipe->status = PIPE_UNDEFINED;
376 }
377
378 return err;
379 }
380
mixart_set_stream_state(struct mixart_stream * stream,int start)381 static int mixart_set_stream_state(struct mixart_stream *stream, int start)
382 {
383 struct snd_mixart *chip;
384 struct mixart_stream_state_req stream_state_req;
385 struct mixart_msg request;
386
387 if(!stream->substream)
388 return -EINVAL;
389
390 memset(&stream_state_req, 0, sizeof(stream_state_req));
391 stream_state_req.stream_count = 1;
392 stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
393 stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
394
395 if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
396 request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
397 else
398 request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
399
400 request.uid = (struct mixart_uid){0,0};
401 request.data = &stream_state_req;
402 request.size = sizeof(stream_state_req);
403
404 stream->abs_period_elapsed = 0; /* reset stream pos */
405 stream->buf_periods = 0;
406 stream->buf_period_frag = 0;
407
408 chip = snd_pcm_substream_chip(stream->substream);
409
410 return snd_mixart_send_msg_nonblock(chip->mgr, &request);
411 }
412
413 /*
414 * Trigger callback
415 */
416
snd_mixart_trigger(struct snd_pcm_substream * subs,int cmd)417 static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
418 {
419 struct mixart_stream *stream = subs->runtime->private_data;
420
421 switch (cmd) {
422 case SNDRV_PCM_TRIGGER_START:
423
424 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_START\n");
425
426 /* START_STREAM */
427 if( mixart_set_stream_state(stream, 1) )
428 return -EINVAL;
429
430 stream->status = MIXART_STREAM_STATUS_RUNNING;
431
432 break;
433 case SNDRV_PCM_TRIGGER_STOP:
434
435 /* STOP_STREAM */
436 if( mixart_set_stream_state(stream, 0) )
437 return -EINVAL;
438
439 stream->status = MIXART_STREAM_STATUS_OPEN;
440
441 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
442
443 break;
444
445 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
446 /* TODO */
447 stream->status = MIXART_STREAM_STATUS_PAUSE;
448 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_PUSH\n");
449 break;
450 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
451 /* TODO */
452 stream->status = MIXART_STREAM_STATUS_RUNNING;
453 dev_dbg(subs->pcm->card->dev, "SNDRV_PCM_PAUSE_RELEASE\n");
454 break;
455 default:
456 return -EINVAL;
457 }
458 return 0;
459 }
460
mixart_sync_nonblock_events(struct mixart_mgr * mgr)461 static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
462 {
463 unsigned long timeout = jiffies + HZ;
464 while (atomic_read(&mgr->msg_processed) > 0) {
465 if (time_after(jiffies, timeout)) {
466 dev_err(&mgr->pci->dev,
467 "mixart: cannot process nonblock events!\n");
468 return -EBUSY;
469 }
470 schedule_timeout_uninterruptible(1);
471 }
472 return 0;
473 }
474
475 /*
476 * prepare callback for all pcms
477 */
snd_mixart_prepare(struct snd_pcm_substream * subs)478 static int snd_mixart_prepare(struct snd_pcm_substream *subs)
479 {
480 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
481 struct mixart_stream *stream = subs->runtime->private_data;
482
483 /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
484
485 dev_dbg(chip->card->dev, "snd_mixart_prepare\n");
486
487 mixart_sync_nonblock_events(chip->mgr);
488
489 /* only the first stream can choose the sample rate */
490 /* the further opened streams will be limited to its frequency (see open) */
491 if(chip->mgr->ref_count_rate == 1)
492 chip->mgr->sample_rate = subs->runtime->rate;
493
494 /* set the clock only once (first stream) on the same pipe */
495 if(stream->pipe->references == 1) {
496 if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
497 return -EINVAL;
498 }
499
500 return 0;
501 }
502
503
mixart_set_format(struct mixart_stream * stream,snd_pcm_format_t format)504 static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
505 {
506 int err;
507 struct snd_mixart *chip;
508 struct mixart_msg request;
509 struct mixart_stream_param_desc stream_param;
510 struct mixart_return_uid resp;
511
512 chip = snd_pcm_substream_chip(stream->substream);
513
514 memset(&stream_param, 0, sizeof(stream_param));
515
516 stream_param.coding_type = CT_LINEAR;
517 stream_param.number_of_channel = stream->channels;
518
519 stream_param.sampling_freq = chip->mgr->sample_rate;
520 if(stream_param.sampling_freq == 0)
521 stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
522
523 switch(format){
524 case SNDRV_PCM_FORMAT_U8:
525 stream_param.sample_type = ST_INTEGER_8;
526 stream_param.sample_size = 8;
527 break;
528 case SNDRV_PCM_FORMAT_S16_LE:
529 stream_param.sample_type = ST_INTEGER_16LE;
530 stream_param.sample_size = 16;
531 break;
532 case SNDRV_PCM_FORMAT_S16_BE:
533 stream_param.sample_type = ST_INTEGER_16BE;
534 stream_param.sample_size = 16;
535 break;
536 case SNDRV_PCM_FORMAT_S24_3LE:
537 stream_param.sample_type = ST_INTEGER_24LE;
538 stream_param.sample_size = 24;
539 break;
540 case SNDRV_PCM_FORMAT_S24_3BE:
541 stream_param.sample_type = ST_INTEGER_24BE;
542 stream_param.sample_size = 24;
543 break;
544 case SNDRV_PCM_FORMAT_FLOAT_LE:
545 stream_param.sample_type = ST_FLOATING_POINT_32LE;
546 stream_param.sample_size = 32;
547 break;
548 case SNDRV_PCM_FORMAT_FLOAT_BE:
549 stream_param.sample_type = ST_FLOATING_POINT_32BE;
550 stream_param.sample_size = 32;
551 break;
552 default:
553 dev_err(chip->card->dev,
554 "error mixart_set_format() : unknown format\n");
555 return -EINVAL;
556 }
557
558 dev_dbg(chip->card->dev,
559 "set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
560 stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
561
562 /* TODO: what else to configure ? */
563 /* stream_param.samples_per_frame = 2; */
564 /* stream_param.bytes_per_frame = 4; */
565 /* stream_param.bytes_per_sample = 2; */
566
567 stream_param.pipe_count = 1; /* set to 1 */
568 stream_param.stream_count = 1; /* set to 1 */
569 stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
570 stream_param.stream_desc[0].stream_idx = stream->substream->number;
571
572 request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
573 request.uid = (struct mixart_uid){0,0};
574 request.data = &stream_param;
575 request.size = sizeof(stream_param);
576
577 err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
578 if((err < 0) || resp.error_code) {
579 dev_err(chip->card->dev,
580 "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n",
581 err, resp.error_code);
582 return -EINVAL;
583 }
584 return 0;
585 }
586
587
588 /*
589 * HW_PARAMS callback for all pcms
590 */
snd_mixart_hw_params(struct snd_pcm_substream * subs,struct snd_pcm_hw_params * hw)591 static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
592 struct snd_pcm_hw_params *hw)
593 {
594 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
595 struct mixart_mgr *mgr = chip->mgr;
596 struct mixart_stream *stream = subs->runtime->private_data;
597 snd_pcm_format_t format;
598 int err;
599 int channels;
600
601 /* set up channels */
602 channels = params_channels(hw);
603
604 /* set up format for the stream */
605 format = params_format(hw);
606
607 mutex_lock(&mgr->setup_mutex);
608
609 /* update the stream levels */
610 if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
611 int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
612 if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
613 mixart_update_playback_stream_level(chip, is_aes, subs->number);
614 else
615 mixart_update_capture_stream_level( chip, is_aes);
616 }
617
618 stream->channels = channels;
619
620 /* set the format to the board */
621 err = mixart_set_format(stream, format);
622 if(err < 0) {
623 mutex_unlock(&mgr->setup_mutex);
624 return err;
625 }
626
627 if (subs->runtime->buffer_changed) {
628 struct mixart_bufferinfo *bufferinfo;
629 int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
630 if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
631 i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
632 }
633
634 bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
635 bufferinfo[i].buffer_address = subs->runtime->dma_addr;
636 bufferinfo[i].available_length = subs->runtime->dma_bytes;
637 /* bufferinfo[i].buffer_id is already defined */
638
639 dev_dbg(chip->card->dev,
640 "snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n",
641 i, bufferinfo[i].buffer_address,
642 bufferinfo[i].available_length,
643 subs->number);
644 }
645 mutex_unlock(&mgr->setup_mutex);
646
647 return 0;
648 }
649
snd_mixart_hw_free(struct snd_pcm_substream * subs)650 static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
651 {
652 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
653 mixart_sync_nonblock_events(chip->mgr);
654 return 0;
655 }
656
657
658
659 /*
660 * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
661 */
662 static const struct snd_pcm_hardware snd_mixart_analog_caps =
663 {
664 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
665 SNDRV_PCM_INFO_MMAP_VALID |
666 SNDRV_PCM_INFO_PAUSE),
667 .formats = ( SNDRV_PCM_FMTBIT_U8 |
668 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
669 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
670 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
671 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
672 .rate_min = 8000,
673 .rate_max = 48000,
674 .channels_min = 1,
675 .channels_max = 2,
676 .buffer_bytes_max = (32*1024),
677 .period_bytes_min = 256, /* 256 frames U8 mono*/
678 .period_bytes_max = (16*1024),
679 .periods_min = 2,
680 .periods_max = (32*1024/256),
681 };
682
683 static const struct snd_pcm_hardware snd_mixart_digital_caps =
684 {
685 .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
686 SNDRV_PCM_INFO_MMAP_VALID |
687 SNDRV_PCM_INFO_PAUSE),
688 .formats = ( SNDRV_PCM_FMTBIT_U8 |
689 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
690 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
691 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
692 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
693 .rate_min = 32000,
694 .rate_max = 48000,
695 .channels_min = 1,
696 .channels_max = 2,
697 .buffer_bytes_max = (32*1024),
698 .period_bytes_min = 256, /* 256 frames U8 mono*/
699 .period_bytes_max = (16*1024),
700 .periods_min = 2,
701 .periods_max = (32*1024/256),
702 };
703
704
snd_mixart_playback_open(struct snd_pcm_substream * subs)705 static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
706 {
707 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
708 struct mixart_mgr *mgr = chip->mgr;
709 struct snd_pcm_runtime *runtime = subs->runtime;
710 struct snd_pcm *pcm = subs->pcm;
711 struct mixart_stream *stream;
712 struct mixart_pipe *pipe;
713 int err = 0;
714 int pcm_number;
715
716 mutex_lock(&mgr->setup_mutex);
717
718 if ( pcm == chip->pcm ) {
719 pcm_number = MIXART_PCM_ANALOG;
720 runtime->hw = snd_mixart_analog_caps;
721 } else {
722 snd_BUG_ON(pcm != chip->pcm_dig);
723 pcm_number = MIXART_PCM_DIGITAL;
724 runtime->hw = snd_mixart_digital_caps;
725 }
726 dev_dbg(chip->card->dev,
727 "snd_mixart_playback_open C%d/P%d/Sub%d\n",
728 chip->chip_idx, pcm_number, subs->number);
729
730 /* get stream info */
731 stream = &(chip->playback_stream[pcm_number][subs->number]);
732
733 if (stream->status != MIXART_STREAM_STATUS_FREE){
734 /* streams in use */
735 dev_err(chip->card->dev,
736 "snd_mixart_playback_open C%d/P%d/Sub%d in use\n",
737 chip->chip_idx, pcm_number, subs->number);
738 err = -EBUSY;
739 goto _exit_open;
740 }
741
742 /* get pipe pointer (out pipe) */
743 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
744
745 if (pipe == NULL) {
746 err = -EINVAL;
747 goto _exit_open;
748 }
749
750 /* start the pipe if necessary */
751 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
752 if( err < 0 ) {
753 dev_err(chip->card->dev, "error starting pipe!\n");
754 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
755 err = -EINVAL;
756 goto _exit_open;
757 }
758
759 stream->pipe = pipe;
760 stream->pcm_number = pcm_number;
761 stream->status = MIXART_STREAM_STATUS_OPEN;
762 stream->substream = subs;
763 stream->channels = 0; /* not configured yet */
764
765 runtime->private_data = stream;
766
767 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
768 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
769
770 /* if a sample rate is already used, another stream cannot change */
771 if(mgr->ref_count_rate++) {
772 if(mgr->sample_rate) {
773 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
774 }
775 }
776
777 _exit_open:
778 mutex_unlock(&mgr->setup_mutex);
779
780 return err;
781 }
782
783
snd_mixart_capture_open(struct snd_pcm_substream * subs)784 static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
785 {
786 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
787 struct mixart_mgr *mgr = chip->mgr;
788 struct snd_pcm_runtime *runtime = subs->runtime;
789 struct snd_pcm *pcm = subs->pcm;
790 struct mixart_stream *stream;
791 struct mixart_pipe *pipe;
792 int err = 0;
793 int pcm_number;
794
795 mutex_lock(&mgr->setup_mutex);
796
797 if ( pcm == chip->pcm ) {
798 pcm_number = MIXART_PCM_ANALOG;
799 runtime->hw = snd_mixart_analog_caps;
800 } else {
801 snd_BUG_ON(pcm != chip->pcm_dig);
802 pcm_number = MIXART_PCM_DIGITAL;
803 runtime->hw = snd_mixart_digital_caps;
804 }
805
806 runtime->hw.channels_min = 2; /* for instance, no mono */
807
808 dev_dbg(chip->card->dev, "snd_mixart_capture_open C%d/P%d/Sub%d\n",
809 chip->chip_idx, pcm_number, subs->number);
810
811 /* get stream info */
812 stream = &(chip->capture_stream[pcm_number]);
813
814 if (stream->status != MIXART_STREAM_STATUS_FREE){
815 /* streams in use */
816 dev_err(chip->card->dev,
817 "snd_mixart_capture_open C%d/P%d/Sub%d in use\n",
818 chip->chip_idx, pcm_number, subs->number);
819 err = -EBUSY;
820 goto _exit_open;
821 }
822
823 /* get pipe pointer (in pipe) */
824 pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
825
826 if (pipe == NULL) {
827 err = -EINVAL;
828 goto _exit_open;
829 }
830
831 /* start the pipe if necessary */
832 err = mixart_set_pipe_state(chip->mgr, pipe, 1);
833 if( err < 0 ) {
834 dev_err(chip->card->dev, "error starting pipe!\n");
835 snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
836 err = -EINVAL;
837 goto _exit_open;
838 }
839
840 stream->pipe = pipe;
841 stream->pcm_number = pcm_number;
842 stream->status = MIXART_STREAM_STATUS_OPEN;
843 stream->substream = subs;
844 stream->channels = 0; /* not configured yet */
845
846 runtime->private_data = stream;
847
848 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
849 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
850
851 /* if a sample rate is already used, another stream cannot change */
852 if(mgr->ref_count_rate++) {
853 if(mgr->sample_rate) {
854 runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
855 }
856 }
857
858 _exit_open:
859 mutex_unlock(&mgr->setup_mutex);
860
861 return err;
862 }
863
864
865
snd_mixart_close(struct snd_pcm_substream * subs)866 static int snd_mixart_close(struct snd_pcm_substream *subs)
867 {
868 struct snd_mixart *chip = snd_pcm_substream_chip(subs);
869 struct mixart_mgr *mgr = chip->mgr;
870 struct mixart_stream *stream = subs->runtime->private_data;
871
872 mutex_lock(&mgr->setup_mutex);
873
874 dev_dbg(chip->card->dev, "snd_mixart_close C%d/P%d/Sub%d\n",
875 chip->chip_idx, stream->pcm_number, subs->number);
876
877 /* sample rate released */
878 if(--mgr->ref_count_rate == 0) {
879 mgr->sample_rate = 0;
880 }
881
882 /* delete pipe */
883 if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
884
885 dev_err(chip->card->dev,
886 "error snd_mixart_kill_ref_pipe C%dP%d\n",
887 chip->chip_idx, stream->pcm_number);
888 }
889
890 stream->pipe = NULL;
891 stream->status = MIXART_STREAM_STATUS_FREE;
892 stream->substream = NULL;
893
894 mutex_unlock(&mgr->setup_mutex);
895 return 0;
896 }
897
898
snd_mixart_stream_pointer(struct snd_pcm_substream * subs)899 static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
900 {
901 struct snd_pcm_runtime *runtime = subs->runtime;
902 struct mixart_stream *stream = runtime->private_data;
903
904 return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
905 }
906
907
908
909 static const struct snd_pcm_ops snd_mixart_playback_ops = {
910 .open = snd_mixart_playback_open,
911 .close = snd_mixart_close,
912 .prepare = snd_mixart_prepare,
913 .hw_params = snd_mixart_hw_params,
914 .hw_free = snd_mixart_hw_free,
915 .trigger = snd_mixart_trigger,
916 .pointer = snd_mixart_stream_pointer,
917 };
918
919 static const struct snd_pcm_ops snd_mixart_capture_ops = {
920 .open = snd_mixart_capture_open,
921 .close = snd_mixart_close,
922 .prepare = snd_mixart_prepare,
923 .hw_params = snd_mixart_hw_params,
924 .hw_free = snd_mixart_hw_free,
925 .trigger = snd_mixart_trigger,
926 .pointer = snd_mixart_stream_pointer,
927 };
928
preallocate_buffers(struct snd_mixart * chip,struct snd_pcm * pcm)929 static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
930 {
931 #if 0
932 struct snd_pcm_substream *subs;
933 int stream;
934
935 for (stream = 0; stream < 2; stream++) {
936 int idx = 0;
937 for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
938 /* set up the unique device id with the chip index */
939 subs->dma_device.id = subs->pcm->device << 16 |
940 subs->stream << 8 | (subs->number + 1) |
941 (chip->chip_idx + 1) << 24;
942 }
943 #endif
944 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
945 &chip->mgr->pci->dev,
946 32*1024, 32*1024);
947 }
948
949 /*
950 */
snd_mixart_pcm_analog(struct snd_mixart * chip)951 static int snd_mixart_pcm_analog(struct snd_mixart *chip)
952 {
953 int err;
954 struct snd_pcm *pcm;
955 char name[32];
956
957 sprintf(name, "miXart analog %d", chip->chip_idx);
958 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
959 MIXART_PLAYBACK_STREAMS,
960 MIXART_CAPTURE_STREAMS, &pcm)) < 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 if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
992 MIXART_PLAYBACK_STREAMS,
993 MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
994 dev_err(chip->card->dev,
995 "cannot create the digital pcm %d\n", chip->chip_idx);
996 return err;
997 }
998
999 pcm->private_data = chip;
1000
1001 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
1002 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
1003
1004 pcm->info_flags = 0;
1005 pcm->nonatomic = true;
1006 strcpy(pcm->name, name);
1007
1008 preallocate_buffers(chip, pcm);
1009
1010 chip->pcm_dig = pcm;
1011 return 0;
1012 }
1013
snd_mixart_chip_free(struct snd_mixart * chip)1014 static int snd_mixart_chip_free(struct snd_mixart *chip)
1015 {
1016 kfree(chip);
1017 return 0;
1018 }
1019
snd_mixart_chip_dev_free(struct snd_device * device)1020 static int snd_mixart_chip_dev_free(struct snd_device *device)
1021 {
1022 struct snd_mixart *chip = device->device_data;
1023 return snd_mixart_chip_free(chip);
1024 }
1025
1026
1027 /*
1028 */
snd_mixart_create(struct mixart_mgr * mgr,struct snd_card * card,int idx)1029 static int snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx)
1030 {
1031 int err;
1032 struct snd_mixart *chip;
1033 static const struct snd_device_ops ops = {
1034 .dev_free = snd_mixart_chip_dev_free,
1035 };
1036
1037 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1038 if (!chip)
1039 return -ENOMEM;
1040
1041 chip->card = card;
1042 chip->chip_idx = idx;
1043 chip->mgr = mgr;
1044 card->sync_irq = mgr->irq;
1045
1046 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1047 snd_mixart_chip_free(chip);
1048 return err;
1049 }
1050
1051 mgr->chip[idx] = chip;
1052 return 0;
1053 }
1054
snd_mixart_create_pcm(struct snd_mixart * chip)1055 int snd_mixart_create_pcm(struct snd_mixart* chip)
1056 {
1057 int err;
1058
1059 err = snd_mixart_pcm_analog(chip);
1060 if (err < 0)
1061 return err;
1062
1063 if(chip->mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
1064
1065 err = snd_mixart_pcm_digital(chip);
1066 if (err < 0)
1067 return err;
1068 }
1069 return err;
1070 }
1071
1072
1073 /*
1074 * release all the cards assigned to a manager instance
1075 */
snd_mixart_free(struct mixart_mgr * mgr)1076 static int snd_mixart_free(struct mixart_mgr *mgr)
1077 {
1078 unsigned int i;
1079
1080 for (i = 0; i < mgr->num_cards; i++) {
1081 if (mgr->chip[i])
1082 snd_card_free(mgr->chip[i]->card);
1083 }
1084
1085 /* stop mailbox */
1086 snd_mixart_exit_mailbox(mgr);
1087
1088 /* release irq */
1089 if (mgr->irq >= 0)
1090 free_irq(mgr->irq, mgr);
1091
1092 /* reset board if some firmware was loaded */
1093 if(mgr->dsp_loaded) {
1094 snd_mixart_reset_board(mgr);
1095 dev_dbg(&mgr->pci->dev, "reset miXart !\n");
1096 }
1097
1098 /* release the i/o ports */
1099 for (i = 0; i < 2; ++i)
1100 iounmap(mgr->mem[i].virt);
1101
1102 pci_release_regions(mgr->pci);
1103
1104 /* free flowarray */
1105 if(mgr->flowinfo.area) {
1106 snd_dma_free_pages(&mgr->flowinfo);
1107 mgr->flowinfo.area = NULL;
1108 }
1109 /* free bufferarray */
1110 if(mgr->bufferinfo.area) {
1111 snd_dma_free_pages(&mgr->bufferinfo);
1112 mgr->bufferinfo.area = NULL;
1113 }
1114
1115 pci_disable_device(mgr->pci);
1116 kfree(mgr);
1117 return 0;
1118 }
1119
1120 /*
1121 * proc interface
1122 */
1123
1124 /*
1125 mixart_BA0 proc interface for BAR 0 - read callback
1126 */
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)1127 static ssize_t snd_mixart_BA0_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_MEM(mgr, pos), count))
1136 return -EFAULT;
1137 return count;
1138 }
1139
1140 /*
1141 mixart_BA1 proc interface for BAR 1 - read callback
1142 */
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)1143 static ssize_t snd_mixart_BA1_read(struct snd_info_entry *entry,
1144 void *file_private_data,
1145 struct file *file, char __user *buf,
1146 size_t count, loff_t pos)
1147 {
1148 struct mixart_mgr *mgr = entry->private_data;
1149
1150 count = count & ~3; /* make sure the read size is a multiple of 4 bytes */
1151 if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))
1152 return -EFAULT;
1153 return count;
1154 }
1155
1156 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA0 = {
1157 .read = snd_mixart_BA0_read,
1158 };
1159
1160 static const struct snd_info_entry_ops snd_mixart_proc_ops_BA1 = {
1161 .read = snd_mixart_BA1_read,
1162 };
1163
1164
snd_mixart_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)1165 static void snd_mixart_proc_read(struct snd_info_entry *entry,
1166 struct snd_info_buffer *buffer)
1167 {
1168 struct snd_mixart *chip = entry->private_data;
1169 u32 ref;
1170
1171 snd_iprintf(buffer, "Digigram miXart (alsa card %d)\n\n", chip->chip_idx);
1172
1173 /* stats available when embedded OS is running */
1174 if (chip->mgr->dsp_loaded & ( 1 << MIXART_MOTHERBOARD_ELF_INDEX)) {
1175 snd_iprintf(buffer, "- hardware -\n");
1176 switch (chip->mgr->board_type ) {
1177 case MIXART_DAUGHTER_TYPE_NONE : snd_iprintf(buffer, "\tmiXart8 (no daughter board)\n\n"); break;
1178 case MIXART_DAUGHTER_TYPE_AES : snd_iprintf(buffer, "\tmiXart8 AES/EBU\n\n"); break;
1179 case MIXART_DAUGHTER_TYPE_COBRANET : snd_iprintf(buffer, "\tmiXart8 Cobranet\n\n"); break;
1180 default: snd_iprintf(buffer, "\tUNKNOWN!\n\n"); break;
1181 }
1182
1183 snd_iprintf(buffer, "- system load -\n");
1184
1185 /* get perf reference */
1186
1187 ref = readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_SYSTEM_LOAD_OFFSET));
1188
1189 if (ref) {
1190 u32 mailbox = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_MAILBX_LOAD_OFFSET)) / ref;
1191 u32 streaming = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_STREAM_LOAD_OFFSET)) / ref;
1192 u32 interr = 100 * readl_be( MIXART_MEM( chip->mgr, MIXART_PSEUDOREG_PERF_INTERR_LOAD_OFFSET)) / ref;
1193
1194 snd_iprintf(buffer, "\tstreaming : %d\n", streaming);
1195 snd_iprintf(buffer, "\tmailbox : %d\n", mailbox);
1196 snd_iprintf(buffer, "\tinterrupts handling : %d\n\n", interr);
1197 }
1198 } /* endif elf loaded */
1199 }
1200
snd_mixart_proc_init(struct snd_mixart * chip)1201 static void snd_mixart_proc_init(struct snd_mixart *chip)
1202 {
1203 struct snd_info_entry *entry;
1204
1205 /* text interface to read perf and temp meters */
1206 snd_card_ro_proc_new(chip->card, "board_info", chip,
1207 snd_mixart_proc_read);
1208
1209 if (! snd_card_proc_new(chip->card, "mixart_BA0", &entry)) {
1210 entry->content = SNDRV_INFO_CONTENT_DATA;
1211 entry->private_data = chip->mgr;
1212 entry->c.ops = &snd_mixart_proc_ops_BA0;
1213 entry->size = MIXART_BA0_SIZE;
1214 }
1215 if (! snd_card_proc_new(chip->card, "mixart_BA1", &entry)) {
1216 entry->content = SNDRV_INFO_CONTENT_DATA;
1217 entry->private_data = chip->mgr;
1218 entry->c.ops = &snd_mixart_proc_ops_BA1;
1219 entry->size = MIXART_BA1_SIZE;
1220 }
1221 }
1222 /* end of proc interface */
1223
1224
1225 /*
1226 * probe function - creates the card manager
1227 */
snd_mixart_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)1228 static int snd_mixart_probe(struct pci_dev *pci,
1229 const struct pci_device_id *pci_id)
1230 {
1231 static int dev;
1232 struct mixart_mgr *mgr;
1233 unsigned int i;
1234 int err;
1235 size_t size;
1236
1237 /*
1238 */
1239 if (dev >= SNDRV_CARDS)
1240 return -ENODEV;
1241 if (! enable[dev]) {
1242 dev++;
1243 return -ENOENT;
1244 }
1245
1246 /* enable PCI device */
1247 if ((err = pci_enable_device(pci)) < 0)
1248 return err;
1249 pci_set_master(pci);
1250
1251 /* check if we can restrict PCI DMA transfers to 32 bits */
1252 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1253 dev_err(&pci->dev,
1254 "architecture does not support 32bit PCI busmaster DMA\n");
1255 pci_disable_device(pci);
1256 return -ENXIO;
1257 }
1258
1259 /*
1260 */
1261 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1262 if (! mgr) {
1263 pci_disable_device(pci);
1264 return -ENOMEM;
1265 }
1266
1267 mgr->pci = pci;
1268 mgr->irq = -1;
1269
1270 /* resource assignment */
1271 if ((err = pci_request_regions(pci, CARD_NAME)) < 0) {
1272 kfree(mgr);
1273 pci_disable_device(pci);
1274 return err;
1275 }
1276 for (i = 0; i < 2; i++) {
1277 mgr->mem[i].phys = pci_resource_start(pci, i);
1278 mgr->mem[i].virt = pci_ioremap_bar(pci, i);
1279 if (!mgr->mem[i].virt) {
1280 dev_err(&pci->dev, "unable to remap resource 0x%lx\n",
1281 mgr->mem[i].phys);
1282 snd_mixart_free(mgr);
1283 return -EBUSY;
1284 }
1285 }
1286
1287 if (request_threaded_irq(pci->irq, snd_mixart_interrupt,
1288 snd_mixart_threaded_irq, IRQF_SHARED,
1289 KBUILD_MODNAME, mgr)) {
1290 dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1291 snd_mixart_free(mgr);
1292 return -EBUSY;
1293 }
1294 mgr->irq = pci->irq;
1295
1296 /* init mailbox */
1297 mgr->msg_fifo_readptr = 0;
1298 mgr->msg_fifo_writeptr = 0;
1299
1300 mutex_init(&mgr->lock);
1301 mutex_init(&mgr->msg_lock);
1302 init_waitqueue_head(&mgr->msg_sleep);
1303 atomic_set(&mgr->msg_processed, 0);
1304
1305 /* init setup mutex*/
1306 mutex_init(&mgr->setup_mutex);
1307
1308 /* card assignment */
1309 mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */
1310 for (i = 0; i < mgr->num_cards; i++) {
1311 struct snd_card *card;
1312 char tmpid[16];
1313 int idx;
1314
1315 if (index[dev] < 0)
1316 idx = index[dev];
1317 else
1318 idx = index[dev] + i;
1319 snprintf(tmpid, sizeof(tmpid), "%s-%d", id[dev] ? id[dev] : "MIXART", i);
1320 err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1321 0, &card);
1322
1323 if (err < 0) {
1324 dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1325 snd_mixart_free(mgr);
1326 return err;
1327 }
1328
1329 strcpy(card->driver, CARD_NAME);
1330 snprintf(card->shortname, sizeof(card->shortname),
1331 "Digigram miXart [PCM #%d]", i);
1332 snprintf(card->longname, sizeof(card->longname),
1333 "Digigram miXart at 0x%lx & 0x%lx, irq %i [PCM #%d]",
1334 mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq, i);
1335
1336 if ((err = snd_mixart_create(mgr, card, i)) < 0) {
1337 snd_card_free(card);
1338 snd_mixart_free(mgr);
1339 return err;
1340 }
1341
1342 if(i==0) {
1343 /* init proc interface only for chip0 */
1344 snd_mixart_proc_init(mgr->chip[i]);
1345 }
1346
1347 if ((err = snd_card_register(card)) < 0) {
1348 snd_mixart_free(mgr);
1349 return err;
1350 }
1351 }
1352
1353 /* init firmware status (mgr->dsp_loaded reset in hwdep_new) */
1354 mgr->board_type = MIXART_DAUGHTER_TYPE_NONE;
1355
1356 /* create array of streaminfo */
1357 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1358 sizeof(struct mixart_flowinfo)) );
1359 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1360 size, &mgr->flowinfo) < 0) {
1361 snd_mixart_free(mgr);
1362 return -ENOMEM;
1363 }
1364 /* init streaminfo_array */
1365 memset(mgr->flowinfo.area, 0, size);
1366
1367 /* create array of bufferinfo */
1368 size = PAGE_ALIGN( (MIXART_MAX_STREAM_PER_CARD * MIXART_MAX_CARDS *
1369 sizeof(struct mixart_bufferinfo)) );
1370 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1371 size, &mgr->bufferinfo) < 0) {
1372 snd_mixart_free(mgr);
1373 return -ENOMEM;
1374 }
1375 /* init bufferinfo_array */
1376 memset(mgr->bufferinfo.area, 0, size);
1377
1378 /* set up firmware */
1379 err = snd_mixart_setup_firmware(mgr);
1380 if (err < 0) {
1381 snd_mixart_free(mgr);
1382 return err;
1383 }
1384
1385 pci_set_drvdata(pci, mgr);
1386 dev++;
1387 return 0;
1388 }
1389
snd_mixart_remove(struct pci_dev * pci)1390 static void snd_mixart_remove(struct pci_dev *pci)
1391 {
1392 snd_mixart_free(pci_get_drvdata(pci));
1393 }
1394
1395 static struct pci_driver mixart_driver = {
1396 .name = KBUILD_MODNAME,
1397 .id_table = snd_mixart_ids,
1398 .probe = snd_mixart_probe,
1399 .remove = snd_mixart_remove,
1400 };
1401
1402 module_pci_driver(mixart_driver);
1403
