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8
9#include <linux/module.h>
10#include <linux/init.h>
11#include <linux/pci.h>
12#include <linux/delay.h>
13#include <linux/slab.h>
14
15#include <sound/initval.h>
16#include <sound/control.h>
17#include <sound/info.h>
18
19#include "lx6464es.h"
20
21MODULE_AUTHOR("Tim Blechmann");
22MODULE_LICENSE("GPL");
23MODULE_DESCRIPTION("digigram lx6464es");
24
25static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
26static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
28
29module_param_array(index, int, NULL, 0444);
30MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface.");
31module_param_array(id, charp, NULL, 0444);
32MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface.");
33module_param_array(enable, bool, NULL, 0444);
34MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards.");
35
36static const char card_name[] = "LX6464ES";
37
38
39#define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056
40
41static const struct pci_device_id snd_lx6464es_ids[] = {
42 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
43 PCI_VENDOR_ID_DIGIGRAM,
44 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM),
45 },
46 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
47 PCI_VENDOR_ID_DIGIGRAM,
48 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM),
49 },
50 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
51 PCI_VENDOR_ID_DIGIGRAM,
52 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_SERIAL_SUBSYSTEM),
53 },
54 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES,
55 PCI_VENDOR_ID_DIGIGRAM,
56 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_CAE_SERIAL_SUBSYSTEM),
57 },
58 { 0, },
59};
60
61MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids);
62
63
64
65
66#define CHIPSC_RESET_XILINX (1L<<16)
67
68
69
70static const struct snd_pcm_hardware lx_caps = {
71 .info = (SNDRV_PCM_INFO_MMAP |
72 SNDRV_PCM_INFO_INTERLEAVED |
73 SNDRV_PCM_INFO_MMAP_VALID |
74 SNDRV_PCM_INFO_SYNC_START),
75 .formats = (SNDRV_PCM_FMTBIT_S16_LE |
76 SNDRV_PCM_FMTBIT_S16_BE |
77 SNDRV_PCM_FMTBIT_S24_3LE |
78 SNDRV_PCM_FMTBIT_S24_3BE),
79 .rates = (SNDRV_PCM_RATE_CONTINUOUS |
80 SNDRV_PCM_RATE_8000_192000),
81 .rate_min = 8000,
82 .rate_max = 192000,
83 .channels_min = 2,
84 .channels_max = 64,
85 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER,
86 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2),
87 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER),
88 .periods_min = 2,
89 .periods_max = MAX_STREAM_BUFFER,
90};
91
92static int lx_set_granularity(struct lx6464es *chip, u32 gran);
93
94
95static int lx_hardware_open(struct lx6464es *chip,
96 struct snd_pcm_substream *substream)
97{
98 int err = 0;
99 struct snd_pcm_runtime *runtime = substream->runtime;
100 int channels = runtime->channels;
101 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
102
103 snd_pcm_uframes_t period_size = runtime->period_size;
104
105 dev_dbg(chip->card->dev, "allocating pipe for %d channels\n", channels);
106 err = lx_pipe_allocate(chip, 0, is_capture, channels);
107 if (err < 0) {
108 dev_err(chip->card->dev, LXP "allocating pipe failed\n");
109 return err;
110 }
111
112 err = lx_set_granularity(chip, period_size);
113 if (err < 0) {
114 dev_err(chip->card->dev, "setting granularity to %ld failed\n",
115 period_size);
116 return err;
117 }
118
119 return 0;
120}
121
122static int lx_hardware_start(struct lx6464es *chip,
123 struct snd_pcm_substream *substream)
124{
125 int err = 0;
126 struct snd_pcm_runtime *runtime = substream->runtime;
127 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
128
129 dev_dbg(chip->card->dev, "setting stream format\n");
130 err = lx_stream_set_format(chip, runtime, 0, is_capture);
131 if (err < 0) {
132 dev_err(chip->card->dev, "setting stream format failed\n");
133 return err;
134 }
135
136 dev_dbg(chip->card->dev, "starting pipe\n");
137 err = lx_pipe_start(chip, 0, is_capture);
138 if (err < 0) {
139 dev_err(chip->card->dev, "starting pipe failed\n");
140 return err;
141 }
142
143 dev_dbg(chip->card->dev, "waiting for pipe to start\n");
144 err = lx_pipe_wait_for_start(chip, 0, is_capture);
145 if (err < 0) {
146 dev_err(chip->card->dev, "waiting for pipe failed\n");
147 return err;
148 }
149
150 return err;
151}
152
153
154static int lx_hardware_stop(struct lx6464es *chip,
155 struct snd_pcm_substream *substream)
156{
157 int err = 0;
158 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
159
160 dev_dbg(chip->card->dev, "pausing pipe\n");
161 err = lx_pipe_pause(chip, 0, is_capture);
162 if (err < 0) {
163 dev_err(chip->card->dev, "pausing pipe failed\n");
164 return err;
165 }
166
167 dev_dbg(chip->card->dev, "waiting for pipe to become idle\n");
168 err = lx_pipe_wait_for_idle(chip, 0, is_capture);
169 if (err < 0) {
170 dev_err(chip->card->dev, "waiting for pipe failed\n");
171 return err;
172 }
173
174 dev_dbg(chip->card->dev, "stopping pipe\n");
175 err = lx_pipe_stop(chip, 0, is_capture);
176 if (err < 0) {
177 dev_err(chip->card->dev, "stopping pipe failed\n");
178 return err;
179 }
180
181 return err;
182}
183
184
185static int lx_hardware_close(struct lx6464es *chip,
186 struct snd_pcm_substream *substream)
187{
188 int err = 0;
189 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
190
191 dev_dbg(chip->card->dev, "releasing pipe\n");
192 err = lx_pipe_release(chip, 0, is_capture);
193 if (err < 0) {
194 dev_err(chip->card->dev, "releasing pipe failed\n");
195 return err;
196 }
197
198 return err;
199}
200
201
202static int lx_pcm_open(struct snd_pcm_substream *substream)
203{
204 struct lx6464es *chip = snd_pcm_substream_chip(substream);
205 struct snd_pcm_runtime *runtime = substream->runtime;
206 int err = 0;
207 int board_rate;
208
209 dev_dbg(chip->card->dev, "->lx_pcm_open\n");
210 mutex_lock(&chip->setup_mutex);
211
212
213 runtime->hw = lx_caps;
214
215#if 0
216
217 err = snd_pcm_hw_constraint_integer(runtime,
218 SNDRV_PCM_HW_PARAM_PERIODS);
219 if (err < 0) {
220 dev_warn(chip->card->dev, "could not constrain periods\n");
221 goto exit;
222 }
223#endif
224
225
226 board_rate = chip->board_sample_rate;
227 err = snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_RATE,
228 board_rate);
229
230 if (err < 0) {
231 dev_warn(chip->card->dev, "could not constrain periods\n");
232 goto exit;
233 }
234
235
236 err = snd_pcm_hw_constraint_minmax(runtime,
237 SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
238 MICROBLAZE_IBL_MIN,
239 MICROBLAZE_IBL_MAX);
240 if (err < 0) {
241 dev_warn(chip->card->dev,
242 "could not constrain period size\n");
243 goto exit;
244 }
245
246 snd_pcm_hw_constraint_step(runtime, 0,
247 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
248
249 snd_pcm_set_sync(substream);
250 err = 0;
251
252exit:
253 runtime->private_data = chip;
254
255 mutex_unlock(&chip->setup_mutex);
256 dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err);
257 return err;
258}
259
260static int lx_pcm_close(struct snd_pcm_substream *substream)
261{
262 dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n");
263 return 0;
264}
265
266static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream
267 *substream)
268{
269 struct lx6464es *chip = snd_pcm_substream_chip(substream);
270 snd_pcm_uframes_t pos;
271 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
272
273 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream :
274 &chip->playback_stream;
275
276 dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n");
277
278 mutex_lock(&chip->lock);
279 pos = lx_stream->frame_pos * substream->runtime->period_size;
280 mutex_unlock(&chip->lock);
281
282 dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos);
283 return pos;
284}
285
286static int lx_pcm_prepare(struct snd_pcm_substream *substream)
287{
288 struct lx6464es *chip = snd_pcm_substream_chip(substream);
289 int err = 0;
290 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
291
292 dev_dbg(chip->card->dev, "->lx_pcm_prepare\n");
293
294 mutex_lock(&chip->setup_mutex);
295
296 if (chip->hardware_running[is_capture]) {
297 err = lx_hardware_stop(chip, substream);
298 if (err < 0) {
299 dev_err(chip->card->dev, "failed to stop hardware. "
300 "Error code %d\n", err);
301 goto exit;
302 }
303
304 err = lx_hardware_close(chip, substream);
305 if (err < 0) {
306 dev_err(chip->card->dev, "failed to close hardware. "
307 "Error code %d\n", err);
308 goto exit;
309 }
310 }
311
312 dev_dbg(chip->card->dev, "opening hardware\n");
313 err = lx_hardware_open(chip, substream);
314 if (err < 0) {
315 dev_err(chip->card->dev, "failed to open hardware. "
316 "Error code %d\n", err);
317 goto exit;
318 }
319
320 err = lx_hardware_start(chip, substream);
321 if (err < 0) {
322 dev_err(chip->card->dev, "failed to start hardware. "
323 "Error code %d\n", err);
324 goto exit;
325 }
326
327 chip->hardware_running[is_capture] = 1;
328
329 if (chip->board_sample_rate != substream->runtime->rate) {
330 if (!err)
331 chip->board_sample_rate = substream->runtime->rate;
332 }
333
334exit:
335 mutex_unlock(&chip->setup_mutex);
336 return err;
337}
338
339static int lx_pcm_hw_params(struct snd_pcm_substream *substream,
340 struct snd_pcm_hw_params *hw_params, int is_capture)
341{
342 struct lx6464es *chip = snd_pcm_substream_chip(substream);
343
344 dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n");
345
346 mutex_lock(&chip->setup_mutex);
347
348 if (is_capture)
349 chip->capture_stream.stream = substream;
350 else
351 chip->playback_stream.stream = substream;
352
353 mutex_unlock(&chip->setup_mutex);
354 return 0;
355}
356
357static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream,
358 struct snd_pcm_hw_params *hw_params)
359{
360 return lx_pcm_hw_params(substream, hw_params, 0);
361}
362
363static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream,
364 struct snd_pcm_hw_params *hw_params)
365{
366 return lx_pcm_hw_params(substream, hw_params, 1);
367}
368
369static int lx_pcm_hw_free(struct snd_pcm_substream *substream)
370{
371 struct lx6464es *chip = snd_pcm_substream_chip(substream);
372 int err = 0;
373 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
374
375 dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n");
376 mutex_lock(&chip->setup_mutex);
377
378 if (chip->hardware_running[is_capture]) {
379 err = lx_hardware_stop(chip, substream);
380 if (err < 0) {
381 dev_err(chip->card->dev, "failed to stop hardware. "
382 "Error code %d\n", err);
383 goto exit;
384 }
385
386 err = lx_hardware_close(chip, substream);
387 if (err < 0) {
388 dev_err(chip->card->dev, "failed to close hardware. "
389 "Error code %d\n", err);
390 goto exit;
391 }
392
393 chip->hardware_running[is_capture] = 0;
394 }
395
396 if (is_capture)
397 chip->capture_stream.stream = NULL;
398 else
399 chip->playback_stream.stream = NULL;
400
401exit:
402 mutex_unlock(&chip->setup_mutex);
403 return err;
404}
405
406static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
407{
408 struct snd_pcm_substream *substream = lx_stream->stream;
409 const unsigned int is_capture = lx_stream->is_capture;
410
411 int err;
412
413 const u32 channels = substream->runtime->channels;
414 const u32 bytes_per_frame = channels * 3;
415 const u32 period_size = substream->runtime->period_size;
416 const u32 periods = substream->runtime->periods;
417 const u32 period_bytes = period_size * bytes_per_frame;
418
419 dma_addr_t buf = substream->dma_buffer.addr;
420 int i;
421
422 u32 needed, freed;
423 u32 size_array[5];
424
425 for (i = 0; i != periods; ++i) {
426 u32 buffer_index = 0;
427
428 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed,
429 size_array);
430 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n",
431 needed, freed);
432
433 err = lx_buffer_give(chip, 0, is_capture, period_bytes,
434 lower_32_bits(buf), upper_32_bits(buf),
435 &buffer_index);
436
437 dev_dbg(chip->card->dev, "starting: buffer index %x on 0x%lx (%d bytes)\n",
438 buffer_index, (unsigned long)buf, period_bytes);
439 buf += period_bytes;
440 }
441
442 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array);
443 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed);
444
445 dev_dbg(chip->card->dev, "starting: starting stream\n");
446 err = lx_stream_start(chip, 0, is_capture);
447 if (err < 0)
448 dev_err(chip->card->dev, "couldn't start stream\n");
449 else
450 lx_stream->status = LX_STREAM_STATUS_RUNNING;
451
452 lx_stream->frame_pos = 0;
453}
454
455static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream)
456{
457 const unsigned int is_capture = lx_stream->is_capture;
458 int err;
459
460 dev_dbg(chip->card->dev, "stopping: stopping stream\n");
461 err = lx_stream_stop(chip, 0, is_capture);
462 if (err < 0)
463 dev_err(chip->card->dev, "couldn't stop stream\n");
464 else
465 lx_stream->status = LX_STREAM_STATUS_FREE;
466
467}
468
469static void lx_trigger_dispatch_stream(struct lx6464es *chip,
470 struct lx_stream *lx_stream)
471{
472 switch (lx_stream->status) {
473 case LX_STREAM_STATUS_SCHEDULE_RUN:
474 lx_trigger_start(chip, lx_stream);
475 break;
476
477 case LX_STREAM_STATUS_SCHEDULE_STOP:
478 lx_trigger_stop(chip, lx_stream);
479 break;
480
481 default:
482 break;
483 }
484}
485
486static int lx_pcm_trigger_dispatch(struct lx6464es *chip,
487 struct lx_stream *lx_stream, int cmd)
488{
489 int err = 0;
490
491 mutex_lock(&chip->lock);
492 switch (cmd) {
493 case SNDRV_PCM_TRIGGER_START:
494 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN;
495 break;
496
497 case SNDRV_PCM_TRIGGER_STOP:
498 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP;
499 break;
500
501 default:
502 err = -EINVAL;
503 goto exit;
504 }
505
506 lx_trigger_dispatch_stream(chip, &chip->capture_stream);
507 lx_trigger_dispatch_stream(chip, &chip->playback_stream);
508
509exit:
510 mutex_unlock(&chip->lock);
511 return err;
512}
513
514
515static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
516{
517 struct lx6464es *chip = snd_pcm_substream_chip(substream);
518 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
519 struct lx_stream *stream = is_capture ? &chip->capture_stream :
520 &chip->playback_stream;
521
522 dev_dbg(chip->card->dev, "->lx_pcm_trigger\n");
523
524 return lx_pcm_trigger_dispatch(chip, stream, cmd);
525}
526
527static int snd_lx6464es_free(struct lx6464es *chip)
528{
529 dev_dbg(chip->card->dev, "->snd_lx6464es_free\n");
530
531 lx_irq_disable(chip);
532
533 if (chip->irq >= 0)
534 free_irq(chip->irq, chip);
535
536 iounmap(chip->port_dsp_bar);
537 ioport_unmap(chip->port_plx_remapped);
538
539 pci_release_regions(chip->pci);
540 pci_disable_device(chip->pci);
541
542 kfree(chip);
543
544 return 0;
545}
546
547static int snd_lx6464es_dev_free(struct snd_device *device)
548{
549 return snd_lx6464es_free(device->device_data);
550}
551
552
553static int lx_init_xilinx_reset(struct lx6464es *chip)
554{
555 int i;
556 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC);
557
558 dev_dbg(chip->card->dev, "->lx_init_xilinx_reset\n");
559
560
561 plx_reg &= ~CHIPSC_RESET_XILINX;
562
563 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
564 msleep(1);
565
566 lx_plx_reg_write(chip, ePLX_MBOX3, 0);
567 msleep(1);
568
569 plx_reg |= CHIPSC_RESET_XILINX;
570 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
571
572
573 for (i = 0; i != 100; ++i) {
574 u32 reg_mbox3;
575 msleep(10);
576 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3);
577 if (reg_mbox3) {
578 dev_dbg(chip->card->dev, "xilinx reset done\n");
579 dev_dbg(chip->card->dev, "xilinx took %d loops\n", i);
580 break;
581 }
582 }
583
584
585
586
587 lx_dsp_reg_write(chip, eReg_CSM, 0);
588
589
590 msleep(600);
591
592 return 0;
593}
594
595static int lx_init_xilinx_test(struct lx6464es *chip)
596{
597 u32 reg;
598
599 dev_dbg(chip->card->dev, "->lx_init_xilinx_test\n");
600
601
602 lx_dsp_reg_write(chip, eReg_CSM, 0);
603
604 reg = lx_dsp_reg_read(chip, eReg_CSM);
605
606 if (reg) {
607 dev_err(chip->card->dev, "Problem: Reg_CSM %x.\n", reg);
608
609
610 lx_plx_reg_write(chip, ePLX_PCICR, 1);
611
612 reg = lx_dsp_reg_read(chip, eReg_CSM);
613 if (reg) {
614 dev_err(chip->card->dev, "Error: Reg_CSM %x.\n", reg);
615 return -EAGAIN;
616 }
617 }
618
619 dev_dbg(chip->card->dev, "Xilinx/MicroBlaze access test successful\n");
620
621 return 0;
622}
623
624
625static int lx_init_ethersound_config(struct lx6464es *chip)
626{
627 int i;
628 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES);
629
630
631 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) |
632 (64 << IOCR_INPUTS_OFFSET) |
633 (64 << IOCR_OUTPUTS_OFFSET) |
634 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET);
635
636 dev_dbg(chip->card->dev, "->lx_init_ethersound\n");
637
638 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE;
639
640
641
642
643
644
645
646 lx_dsp_reg_write(chip, eReg_CONFES, conf_es);
647
648 for (i = 0; i != 1000; ++i) {
649 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) {
650 dev_dbg(chip->card->dev, "ethersound initialized after %dms\n",
651 i);
652 goto ethersound_initialized;
653 }
654 msleep(1);
655 }
656 dev_warn(chip->card->dev,
657 "ethersound could not be initialized after %dms\n", i);
658 return -ETIMEDOUT;
659
660 ethersound_initialized:
661 dev_dbg(chip->card->dev, "ethersound initialized\n");
662 return 0;
663}
664
665static int lx_init_get_version_features(struct lx6464es *chip)
666{
667 u32 dsp_version;
668
669 int err;
670
671 dev_dbg(chip->card->dev, "->lx_init_get_version_features\n");
672
673 err = lx_dsp_get_version(chip, &dsp_version);
674
675 if (err == 0) {
676 u32 freq;
677
678 dev_info(chip->card->dev, "DSP version: V%02d.%02d #%d\n",
679 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff,
680 dsp_version & 0xff);
681
682
683
684
685
686
687
688
689
690 err = lx_dsp_get_clock_frequency(chip, &freq);
691 if (err == 0)
692 chip->board_sample_rate = freq;
693 dev_dbg(chip->card->dev, "actual clock frequency %d\n", freq);
694 } else {
695 dev_err(chip->card->dev, "DSP corrupted \n");
696 err = -EAGAIN;
697 }
698
699 return err;
700}
701
702static int lx_set_granularity(struct lx6464es *chip, u32 gran)
703{
704 int err = 0;
705 u32 snapped_gran = MICROBLAZE_IBL_MIN;
706
707 dev_dbg(chip->card->dev, "->lx_set_granularity\n");
708
709
710 while ((snapped_gran < gran) &&
711 (snapped_gran < MICROBLAZE_IBL_MAX)) {
712 snapped_gran *= 2;
713 }
714
715 if (snapped_gran == chip->pcm_granularity)
716 return 0;
717
718 err = lx_dsp_set_granularity(chip, snapped_gran);
719 if (err < 0) {
720 dev_warn(chip->card->dev, "could not set granularity\n");
721 err = -EAGAIN;
722 }
723
724 if (snapped_gran != gran)
725 dev_err(chip->card->dev, "snapped blocksize to %d\n", snapped_gran);
726
727 dev_dbg(chip->card->dev, "set blocksize on board %d\n", snapped_gran);
728 chip->pcm_granularity = snapped_gran;
729
730 return err;
731}
732
733
734static int lx_init_dsp(struct lx6464es *chip)
735{
736 int err;
737 int i;
738
739 dev_dbg(chip->card->dev, "->lx_init_dsp\n");
740
741 dev_dbg(chip->card->dev, "initialize board\n");
742 err = lx_init_xilinx_reset(chip);
743 if (err)
744 return err;
745
746 dev_dbg(chip->card->dev, "testing board\n");
747 err = lx_init_xilinx_test(chip);
748 if (err)
749 return err;
750
751 dev_dbg(chip->card->dev, "initialize ethersound configuration\n");
752 err = lx_init_ethersound_config(chip);
753 if (err)
754 return err;
755
756 lx_irq_enable(chip);
757
758
759
760 for (i = 0; i != 1000; ++i) {
761 err = lx_dsp_get_mac(chip);
762 if (err)
763 return err;
764 if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] ||
765 chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5])
766 goto mac_ready;
767 msleep(1);
768 }
769 return -ETIMEDOUT;
770
771mac_ready:
772 dev_dbg(chip->card->dev, "mac address ready read after: %dms\n", i);
773 dev_info(chip->card->dev,
774 "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n",
775 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2],
776 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]);
777
778 err = lx_init_get_version_features(chip);
779 if (err)
780 return err;
781
782 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT);
783
784 chip->playback_mute = 0;
785
786 return err;
787}
788
789static const struct snd_pcm_ops lx_ops_playback = {
790 .open = lx_pcm_open,
791 .close = lx_pcm_close,
792 .prepare = lx_pcm_prepare,
793 .hw_params = lx_pcm_hw_params_playback,
794 .hw_free = lx_pcm_hw_free,
795 .trigger = lx_pcm_trigger,
796 .pointer = lx_pcm_stream_pointer,
797};
798
799static const struct snd_pcm_ops lx_ops_capture = {
800 .open = lx_pcm_open,
801 .close = lx_pcm_close,
802 .prepare = lx_pcm_prepare,
803 .hw_params = lx_pcm_hw_params_capture,
804 .hw_free = lx_pcm_hw_free,
805 .trigger = lx_pcm_trigger,
806 .pointer = lx_pcm_stream_pointer,
807};
808
809static int lx_pcm_create(struct lx6464es *chip)
810{
811 int err;
812 struct snd_pcm *pcm;
813
814 u32 size = 64 *
815 3 *
816 MAX_STREAM_BUFFER *
817 MICROBLAZE_IBL_MAX *
818 2;
819
820 size = PAGE_ALIGN(size);
821
822
823 err = snd_pcm_new(chip->card, (char *)card_name, 0,
824 1, 1, &pcm);
825 if (err < 0)
826 return err;
827
828 pcm->private_data = chip;
829
830 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback);
831 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture);
832
833 pcm->info_flags = 0;
834 pcm->nonatomic = true;
835 strcpy(pcm->name, card_name);
836
837 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
838 &chip->pci->dev, size, size);
839
840 chip->pcm = pcm;
841 chip->capture_stream.is_capture = 1;
842
843 return 0;
844}
845
846static int lx_control_playback_info(struct snd_kcontrol *kcontrol,
847 struct snd_ctl_elem_info *uinfo)
848{
849 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
850 uinfo->count = 1;
851 uinfo->value.integer.min = 0;
852 uinfo->value.integer.max = 1;
853 return 0;
854}
855
856static int lx_control_playback_get(struct snd_kcontrol *kcontrol,
857 struct snd_ctl_elem_value *ucontrol)
858{
859 struct lx6464es *chip = snd_kcontrol_chip(kcontrol);
860 ucontrol->value.integer.value[0] = chip->playback_mute;
861 return 0;
862}
863
864static int lx_control_playback_put(struct snd_kcontrol *kcontrol,
865 struct snd_ctl_elem_value *ucontrol)
866{
867 struct lx6464es *chip = snd_kcontrol_chip(kcontrol);
868 int changed = 0;
869 int current_value = chip->playback_mute;
870
871 if (current_value != ucontrol->value.integer.value[0]) {
872 lx_level_unmute(chip, 0, !current_value);
873 chip->playback_mute = !current_value;
874 changed = 1;
875 }
876 return changed;
877}
878
879static const struct snd_kcontrol_new lx_control_playback_switch = {
880 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
881 .name = "PCM Playback Switch",
882 .index = 0,
883 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
884 .private_value = 0,
885 .info = lx_control_playback_info,
886 .get = lx_control_playback_get,
887 .put = lx_control_playback_put
888};
889
890
891
892static void lx_proc_levels_read(struct snd_info_entry *entry,
893 struct snd_info_buffer *buffer)
894{
895 u32 levels[64];
896 int err;
897 int i, j;
898 struct lx6464es *chip = entry->private_data;
899
900 snd_iprintf(buffer, "capture levels:\n");
901 err = lx_level_peaks(chip, 1, 64, levels);
902 if (err < 0)
903 return;
904
905 for (i = 0; i != 8; ++i) {
906 for (j = 0; j != 8; ++j)
907 snd_iprintf(buffer, "%08x ", levels[i*8+j]);
908 snd_iprintf(buffer, "\n");
909 }
910
911 snd_iprintf(buffer, "\nplayback levels:\n");
912
913 err = lx_level_peaks(chip, 0, 64, levels);
914 if (err < 0)
915 return;
916
917 for (i = 0; i != 8; ++i) {
918 for (j = 0; j != 8; ++j)
919 snd_iprintf(buffer, "%08x ", levels[i*8+j]);
920 snd_iprintf(buffer, "\n");
921 }
922
923 snd_iprintf(buffer, "\n");
924}
925
926static int lx_proc_create(struct snd_card *card, struct lx6464es *chip)
927{
928 return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read);
929}
930
931
932static int snd_lx6464es_create(struct snd_card *card,
933 struct pci_dev *pci,
934 struct lx6464es **rchip)
935{
936 struct lx6464es *chip;
937 int err;
938
939 static const struct snd_device_ops ops = {
940 .dev_free = snd_lx6464es_dev_free,
941 };
942
943 dev_dbg(card->dev, "->snd_lx6464es_create\n");
944
945 *rchip = NULL;
946
947
948 err = pci_enable_device(pci);
949 if (err < 0)
950 return err;
951
952 pci_set_master(pci);
953
954
955 err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
956 if (err < 0) {
957 dev_err(card->dev,
958 "architecture does not support 32bit PCI busmaster DMA\n");
959 pci_disable_device(pci);
960 return -ENXIO;
961 }
962
963 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
964 if (chip == NULL) {
965 err = -ENOMEM;
966 goto alloc_failed;
967 }
968
969 chip->card = card;
970 chip->pci = pci;
971 chip->irq = -1;
972
973
974 mutex_init(&chip->lock);
975 mutex_init(&chip->msg_lock);
976 mutex_init(&chip->setup_mutex);
977
978
979 err = pci_request_regions(pci, card_name);
980 if (err < 0)
981 goto request_regions_failed;
982
983
984 chip->port_plx = pci_resource_start(pci, 1);
985 chip->port_plx_remapped = ioport_map(chip->port_plx,
986 pci_resource_len(pci, 1));
987
988
989 chip->port_dsp_bar = pci_ioremap_bar(pci, 2);
990 if (!chip->port_dsp_bar) {
991 dev_err(card->dev, "cannot remap PCI memory region\n");
992 err = -ENOMEM;
993 goto remap_pci_failed;
994 }
995
996 err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq,
997 IRQF_SHARED, KBUILD_MODNAME, chip);
998 if (err) {
999 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1000 goto request_irq_failed;
1001 }
1002 chip->irq = pci->irq;
1003 card->sync_irq = chip->irq;
1004
1005 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1006 if (err < 0)
1007 goto device_new_failed;
1008
1009 err = lx_init_dsp(chip);
1010 if (err < 0) {
1011 dev_err(card->dev, "error during DSP initialization\n");
1012 return err;
1013 }
1014
1015 err = lx_pcm_create(chip);
1016 if (err < 0)
1017 return err;
1018
1019 err = lx_proc_create(card, chip);
1020 if (err < 0)
1021 return err;
1022
1023 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch,
1024 chip));
1025 if (err < 0)
1026 return err;
1027
1028 *rchip = chip;
1029 return 0;
1030
1031device_new_failed:
1032 free_irq(pci->irq, chip);
1033
1034request_irq_failed:
1035 iounmap(chip->port_dsp_bar);
1036
1037remap_pci_failed:
1038 pci_release_regions(pci);
1039
1040request_regions_failed:
1041 kfree(chip);
1042
1043alloc_failed:
1044 pci_disable_device(pci);
1045
1046 return err;
1047}
1048
1049static int snd_lx6464es_probe(struct pci_dev *pci,
1050 const struct pci_device_id *pci_id)
1051{
1052 static int dev;
1053 struct snd_card *card;
1054 struct lx6464es *chip;
1055 int err;
1056
1057 dev_dbg(&pci->dev, "->snd_lx6464es_probe\n");
1058
1059 if (dev >= SNDRV_CARDS)
1060 return -ENODEV;
1061 if (!enable[dev]) {
1062 dev++;
1063 return -ENOENT;
1064 }
1065
1066 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1067 0, &card);
1068 if (err < 0)
1069 return err;
1070
1071 err = snd_lx6464es_create(card, pci, &chip);
1072 if (err < 0) {
1073 dev_err(card->dev, "error during snd_lx6464es_create\n");
1074 goto out_free;
1075 }
1076
1077 strcpy(card->driver, "LX6464ES");
1078 sprintf(card->id, "LX6464ES_%02X%02X%02X",
1079 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]);
1080
1081 sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X",
1082 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2],
1083 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]);
1084
1085 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i",
1086 card->shortname, chip->port_plx,
1087 chip->port_dsp_bar, chip->irq);
1088
1089 err = snd_card_register(card);
1090 if (err < 0)
1091 goto out_free;
1092
1093 dev_dbg(chip->card->dev, "initialization successful\n");
1094 pci_set_drvdata(pci, card);
1095 dev++;
1096 return 0;
1097
1098out_free:
1099 snd_card_free(card);
1100 return err;
1101
1102}
1103
1104static void snd_lx6464es_remove(struct pci_dev *pci)
1105{
1106 snd_card_free(pci_get_drvdata(pci));
1107}
1108
1109
1110static struct pci_driver lx6464es_driver = {
1111 .name = KBUILD_MODNAME,
1112 .id_table = snd_lx6464es_ids,
1113 .probe = snd_lx6464es_probe,
1114 .remove = snd_lx6464es_remove,
1115};
1116
1117module_pci_driver(lx6464es_driver);
1118