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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[net-next-2.6.git] / sound / pci / lx6464es / lx6464es.c
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02bec490
TB		 1/* -*- linux-c -*- *
2 *
3 * ALSA driver for the digigram lx6464es interface
4 *
5 * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; see the file COPYING. If not, write to
20 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 *
23 */
24
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/pci.h>
28#include <linux/delay.h>
5a0e3ad6 29#include <linux/slab.h>
02bec490
TB		 30
31#include <sound/initval.h>
32#include <sound/control.h>
33#include <sound/info.h>
34
35#include "lx6464es.h"
36
37MODULE_AUTHOR("Tim Blechmann");
38MODULE_LICENSE("GPL");
39MODULE_DESCRIPTION("digigram lx6464es");
40MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}");
41
42
43static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
45static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
46
de0525ca
TB		 47module_param_array(index, int, NULL, 0444);
48MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface.");
49module_param_array(id, charp, NULL, 0444);
50MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface.");
51module_param_array(enable, bool, NULL, 0444);
52MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards.");
53
02bec490
TB		 54static const char card_name[] = "LX6464ES";
55
56
57#define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056
58
cebe41d4 59static DEFINE_PCI_DEVICE_TABLE(snd_lx6464es_ids) = {
02bec490
TB		 60 { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES),
61 .subvendor = PCI_VENDOR_ID_DIGIGRAM,
62 .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM
63 }, /* LX6464ES */
64 { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES),
65 .subvendor = PCI_VENDOR_ID_DIGIGRAM,
66 .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM
67 }, /* LX6464ES-CAE */
68 { 0, },
69};
70
71MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids);
72
73
74
75/* PGO pour USERo dans le registre pci_0x06/loc_0xEC */
76#define CHIPSC_RESET_XILINX (1L<<16)
77
78
79/* alsa callbacks */
80static struct snd_pcm_hardware lx_caps = {
81 .info = (SNDRV_PCM_INFO_MMAP |
82 SNDRV_PCM_INFO_INTERLEAVED |
83 SNDRV_PCM_INFO_MMAP_VALID |
84 SNDRV_PCM_INFO_SYNC_START),
85 .formats = (SNDRV_PCM_FMTBIT_S16_LE |
86 SNDRV_PCM_FMTBIT_S16_BE |
87 SNDRV_PCM_FMTBIT_S24_3LE |
88 SNDRV_PCM_FMTBIT_S24_3BE),
89 .rates = (SNDRV_PCM_RATE_CONTINUOUS |
90 SNDRV_PCM_RATE_8000_192000),
91 .rate_min = 8000,
92 .rate_max = 192000,
93 .channels_min = 2,
94 .channels_max = 64,
95 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER,
96 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2),
97 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER),
98 .periods_min = 2,
99 .periods_max = MAX_STREAM_BUFFER,
100};
101
102static int lx_set_granularity(struct lx6464es *chip, u32 gran);
103
104
105static int lx_hardware_open(struct lx6464es *chip,
106 struct snd_pcm_substream *substream)
107{
108 int err = 0;
109 struct snd_pcm_runtime *runtime = substream->runtime;
110 int channels = runtime->channels;
111 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
112
113 snd_pcm_uframes_t period_size = runtime->period_size;
114
115 snd_printd(LXP "allocating pipe for %d channels\n", channels);
116 err = lx_pipe_allocate(chip, 0, is_capture, channels);
117 if (err < 0) {
118 snd_printk(KERN_ERR LXP "allocating pipe failed\n");
119 return err;
120 }
121
122 err = lx_set_granularity(chip, period_size);
123 if (err < 0) {
124 snd_printk(KERN_ERR LXP "setting granularity to %ld failed\n",
125 period_size);
126 return err;
127 }
128
129 return 0;
130}
131
132static int lx_hardware_start(struct lx6464es *chip,
133 struct snd_pcm_substream *substream)
134{
135 int err = 0;
136 struct snd_pcm_runtime *runtime = substream->runtime;
137 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
138
139 snd_printd(LXP "setting stream format\n");
140 err = lx_stream_set_format(chip, runtime, 0, is_capture);
141 if (err < 0) {
142 snd_printk(KERN_ERR LXP "setting stream format failed\n");
143 return err;
144 }
145
146 snd_printd(LXP "starting pipe\n");
147 err = lx_pipe_start(chip, 0, is_capture);
148 if (err < 0) {
149 snd_printk(KERN_ERR LXP "starting pipe failed\n");
150 return err;
151 }
152
153 snd_printd(LXP "waiting for pipe to start\n");
154 err = lx_pipe_wait_for_start(chip, 0, is_capture);
155 if (err < 0) {
156 snd_printk(KERN_ERR LXP "waiting for pipe failed\n");
157 return err;
158 }
159
160 return err;
161}
162
163
164static int lx_hardware_stop(struct lx6464es *chip,
165 struct snd_pcm_substream *substream)
166{
167 int err = 0;
168 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
169
170 snd_printd(LXP "pausing pipe\n");
171 err = lx_pipe_pause(chip, 0, is_capture);
172 if (err < 0) {
173 snd_printk(KERN_ERR LXP "pausing pipe failed\n");
174 return err;
175 }
176
177 snd_printd(LXP "waiting for pipe to become idle\n");
178 err = lx_pipe_wait_for_idle(chip, 0, is_capture);
179 if (err < 0) {
180 snd_printk(KERN_ERR LXP "waiting for pipe failed\n");
181 return err;
182 }
183
184 snd_printd(LXP "stopping pipe\n");
185 err = lx_pipe_stop(chip, 0, is_capture);
186 if (err < 0) {
187 snd_printk(LXP "stopping pipe failed\n");
188 return err;
189 }
190
191 return err;
192}
193
194
195static int lx_hardware_close(struct lx6464es *chip,
196 struct snd_pcm_substream *substream)
197{
198 int err = 0;
199 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
200
201 snd_printd(LXP "releasing pipe\n");
202 err = lx_pipe_release(chip, 0, is_capture);
203 if (err < 0) {
204 snd_printk(LXP "releasing pipe failed\n");
205 return err;
206 }
207
208 return err;
209}
210
211
212static int lx_pcm_open(struct snd_pcm_substream *substream)
213{
214 struct lx6464es *chip = snd_pcm_substream_chip(substream);
215 struct snd_pcm_runtime *runtime = substream->runtime;
216 int err = 0;
217 int board_rate;
218
219 snd_printdd("->lx_pcm_open\n");
220 mutex_lock(&chip->setup_mutex);
221
222 /* copy the struct snd_pcm_hardware struct */
223 runtime->hw = lx_caps;
224
225#if 0
226 /* buffer-size should better be multiple of period-size */
227 err = snd_pcm_hw_constraint_integer(runtime,
228 SNDRV_PCM_HW_PARAM_PERIODS);
229 if (err < 0) {
230 snd_printk(KERN_WARNING LXP "could not constrain periods\n");
231 goto exit;
232 }
233#endif
234
235 /* the clock rate cannot be changed */
236 board_rate = chip->board_sample_rate;
237 err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE,
238 board_rate, board_rate);
239
240 if (err < 0) {
241 snd_printk(KERN_WARNING LXP "could not constrain periods\n");
242 goto exit;
243 }
244
245 /* constrain period size */
246 err = snd_pcm_hw_constraint_minmax(runtime,
247 SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
248 MICROBLAZE_IBL_MIN,
249 MICROBLAZE_IBL_MAX);
250 if (err < 0) {
251 snd_printk(KERN_WARNING LXP
252 "could not constrain period size\n");
253 goto exit;
254 }
255
256 snd_pcm_hw_constraint_step(runtime, 0,
257 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
258
259 snd_pcm_set_sync(substream);
260 err = 0;
261
262exit:
263 runtime->private_data = chip;
264
265 mutex_unlock(&chip->setup_mutex);
266 snd_printdd("<-lx_pcm_open, %d\n", err);
267 return err;
268}
269
270static int lx_pcm_close(struct snd_pcm_substream *substream)
271{
272 int err = 0;
273 snd_printdd("->lx_pcm_close\n");
274 return err;
275}
276
277static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream
278 *substream)
279{
280 struct lx6464es *chip = snd_pcm_substream_chip(substream);
281 snd_pcm_uframes_t pos;
282 unsigned long flags;
283 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
284
285 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream :
286 &chip->playback_stream;
287
288 snd_printdd("->lx_pcm_stream_pointer\n");
289
290 spin_lock_irqsave(&chip->lock, flags);
291 pos = lx_stream->frame_pos * substream->runtime->period_size;
292 spin_unlock_irqrestore(&chip->lock, flags);
293
294 snd_printdd(LXP "stream_pointer at %ld\n", pos);
295 return pos;
296}
297
298static int lx_pcm_prepare(struct snd_pcm_substream *substream)
299{
300 struct lx6464es *chip = snd_pcm_substream_chip(substream);
301 int err = 0;
302 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
303
304 snd_printdd("->lx_pcm_prepare\n");
305
306 mutex_lock(&chip->setup_mutex);
307
308 if (chip->hardware_running[is_capture]) {
309 err = lx_hardware_stop(chip, substream);
310 if (err < 0) {
311 snd_printk(KERN_ERR LXP "failed to stop hardware. "
312 "Error code %d\n", err);
313 goto exit;
314 }
315
316 err = lx_hardware_close(chip, substream);
317 if (err < 0) {
318 snd_printk(KERN_ERR LXP "failed to close hardware. "
319 "Error code %d\n", err);
320 goto exit;
321 }
322 }
323
324 snd_printd(LXP "opening hardware\n");
325 err = lx_hardware_open(chip, substream);
326 if (err < 0) {
327 snd_printk(KERN_ERR LXP "failed to open hardware. "
328 "Error code %d\n", err);
329 goto exit;
330 }
331
332 err = lx_hardware_start(chip, substream);
333 if (err < 0) {
334 snd_printk(KERN_ERR LXP "failed to start hardware. "
335 "Error code %d\n", err);
336 goto exit;
337 }
338
339 chip->hardware_running[is_capture] = 1;
340
341 if (chip->board_sample_rate != substream->runtime->rate) {
342 if (!err)
343 chip->board_sample_rate = substream->runtime->rate;
344 }
345
346exit:
347 mutex_unlock(&chip->setup_mutex);
348 return err;
349}
350
351static int lx_pcm_hw_params(struct snd_pcm_substream *substream,
352 struct snd_pcm_hw_params *hw_params, int is_capture)
353{
354 struct lx6464es *chip = snd_pcm_substream_chip(substream);
355 int err = 0;
356
357 snd_printdd("->lx_pcm_hw_params\n");
358
359 mutex_lock(&chip->setup_mutex);
360
361 /* set dma buffer */
362 err = snd_pcm_lib_malloc_pages(substream,
363 params_buffer_bytes(hw_params));
364
365 if (is_capture)
366 chip->capture_stream.stream = substream;
367 else
368 chip->playback_stream.stream = substream;
369
370 mutex_unlock(&chip->setup_mutex);
371 return err;
372}
373
374static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream,
375 struct snd_pcm_hw_params *hw_params)
376{
377 return lx_pcm_hw_params(substream, hw_params, 0);
378}
379
380static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream,
381 struct snd_pcm_hw_params *hw_params)
382{
383 return lx_pcm_hw_params(substream, hw_params, 1);
384}
385
386static int lx_pcm_hw_free(struct snd_pcm_substream *substream)
387{
388 struct lx6464es *chip = snd_pcm_substream_chip(substream);
389 int err = 0;
390 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
391
392 snd_printdd("->lx_pcm_hw_free\n");
393 mutex_lock(&chip->setup_mutex);
394
395 if (chip->hardware_running[is_capture]) {
396 err = lx_hardware_stop(chip, substream);
397 if (err < 0) {
398 snd_printk(KERN_ERR LXP "failed to stop hardware. "
399 "Error code %d\n", err);
400 goto exit;
401 }
402
403 err = lx_hardware_close(chip, substream);
404 if (err < 0) {
405 snd_printk(KERN_ERR LXP "failed to close hardware. "
406 "Error code %d\n", err);
407 goto exit;
408 }
409
410 chip->hardware_running[is_capture] = 0;
411 }
412
413 err = snd_pcm_lib_free_pages(substream);
414
415 if (is_capture)
416 chip->capture_stream.stream = 0;
417 else
418 chip->playback_stream.stream = 0;
419
420exit:
421 mutex_unlock(&chip->setup_mutex);
422 return err;
423}
424
425static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
426{
427 struct snd_pcm_substream *substream = lx_stream->stream;
428 const int is_capture = lx_stream->is_capture;
429
430 int err;
431
432 const u32 channels = substream->runtime->channels;
433 const u32 bytes_per_frame = channels * 3;
434 const u32 period_size = substream->runtime->period_size;
435 const u32 periods = substream->runtime->periods;
436 const u32 period_bytes = period_size * bytes_per_frame;
437
438 dma_addr_t buf = substream->dma_buffer.addr;
439 int i;
440
441 u32 needed, freed;
442 u32 size_array[5];
443
444 for (i = 0; i != periods; ++i) {
445 u32 buffer_index = 0;
446
447 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed,
448 size_array);
449 snd_printdd(LXP "starting: needed %d, freed %d\n",
450 needed, freed);
451
452 err = lx_buffer_give(chip, 0, is_capture, period_bytes,
453 lower_32_bits(buf), upper_32_bits(buf),
454 &buffer_index);
455
456 snd_printdd(LXP "starting: buffer index %x on %p (%d bytes)\n",
457 buffer_index, (void *)buf, period_bytes);
458 buf += period_bytes;
459 }
460
461 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array);
462 snd_printdd(LXP "starting: needed %d, freed %d\n", needed, freed);
463
464 snd_printd(LXP "starting: starting stream\n");
465 err = lx_stream_start(chip, 0, is_capture);
466 if (err < 0)
467 snd_printk(KERN_ERR LXP "couldn't start stream\n");
468 else
469 lx_stream->status = LX_STREAM_STATUS_RUNNING;
470
471 lx_stream->frame_pos = 0;
472}
473
474static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream)
475{
476 const int is_capture = lx_stream->is_capture;
477 int err;
478
479 snd_printd(LXP "stopping: stopping stream\n");
480 err = lx_stream_stop(chip, 0, is_capture);
481 if (err < 0)
482 snd_printk(KERN_ERR LXP "couldn't stop stream\n");
483 else
484 lx_stream->status = LX_STREAM_STATUS_FREE;
485
486}
487
488static void lx_trigger_tasklet_dispatch_stream(struct lx6464es *chip,
489 struct lx_stream *lx_stream)
490{
491 switch (lx_stream->status) {
492 case LX_STREAM_STATUS_SCHEDULE_RUN:
493 lx_trigger_start(chip, lx_stream);
494 break;
495
496 case LX_STREAM_STATUS_SCHEDULE_STOP:
497 lx_trigger_stop(chip, lx_stream);
498 break;
499
500 default:
501 break;
502 }
503}
504
505static void lx_trigger_tasklet(unsigned long data)
506{
507 struct lx6464es *chip = (struct lx6464es *)data;
508 unsigned long flags;
509
510 snd_printdd("->lx_trigger_tasklet\n");
511
512 spin_lock_irqsave(&chip->lock, flags);
513 lx_trigger_tasklet_dispatch_stream(chip, &chip->capture_stream);
514 lx_trigger_tasklet_dispatch_stream(chip, &chip->playback_stream);
515 spin_unlock_irqrestore(&chip->lock, flags);
516}
517
518static int lx_pcm_trigger_dispatch(struct lx6464es *chip,
519 struct lx_stream *lx_stream, int cmd)
520{
521 int err = 0;
522
523 switch (cmd) {
524 case SNDRV_PCM_TRIGGER_START:
525 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN;
526 break;
527
528 case SNDRV_PCM_TRIGGER_STOP:
529 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP;
530 break;
531
532 default:
533 err = -EINVAL;
534 goto exit;
535 }
536 tasklet_schedule(&chip->trigger_tasklet);
537
538exit:
539 return err;
540}
541
542
543static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
544{
545 struct lx6464es *chip = snd_pcm_substream_chip(substream);
546 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
547 struct lx_stream *stream = is_capture ? &chip->capture_stream :
548 &chip->playback_stream;
549
550 snd_printdd("->lx_pcm_trigger\n");
551
552 return lx_pcm_trigger_dispatch(chip, stream, cmd);
553}
554
555static int snd_lx6464es_free(struct lx6464es *chip)
556{
557 snd_printdd("->snd_lx6464es_free\n");
558
559 lx_irq_disable(chip);
560
561 if (chip->irq >= 0)
562 free_irq(chip->irq, chip);
563
564 iounmap(chip->port_dsp_bar);
565 ioport_unmap(chip->port_plx_remapped);
566
567 pci_release_regions(chip->pci);
568 pci_disable_device(chip->pci);
569
570 kfree(chip);
571
572 return 0;
573}
574
575static int snd_lx6464es_dev_free(struct snd_device *device)
576{
577 return snd_lx6464es_free(device->device_data);
578}
579
580/* reset the dsp during initialization */
581static int __devinit lx_init_xilinx_reset(struct lx6464es *chip)
582{
583 int i;
584 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC);
585
586 snd_printdd("->lx_init_xilinx_reset\n");
587
588 /* activate reset of xilinx */
589 plx_reg &= ~CHIPSC_RESET_XILINX;
590
591 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
592 msleep(1);
593
594 lx_plx_reg_write(chip, ePLX_MBOX3, 0);
595 msleep(1);
596
597 plx_reg |= CHIPSC_RESET_XILINX;
598 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg);
599
600 /* deactivate reset of xilinx */
601 for (i = 0; i != 100; ++i) {
602 u32 reg_mbox3;
603 msleep(10);
604 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3);
605 if (reg_mbox3) {
606 snd_printd(LXP "xilinx reset done\n");
607 snd_printdd(LXP "xilinx took %d loops\n", i);
608 break;
609 }
610 }
611
612 /* todo: add some error handling? */
613
614 /* clear mr */
615 lx_dsp_reg_write(chip, eReg_CSM, 0);
616
617 /* le xilinx ES peut ne pas etre encore pret, on attend. */
618 msleep(600);
619
620 return 0;
621}
622
623static int __devinit lx_init_xilinx_test(struct lx6464es *chip)
624{
625 u32 reg;
626
627 snd_printdd("->lx_init_xilinx_test\n");
628
629 /* TEST if we have access to Xilinx/MicroBlaze */
630 lx_dsp_reg_write(chip, eReg_CSM, 0);
631
632 reg = lx_dsp_reg_read(chip, eReg_CSM);
633
634 if (reg) {
635 snd_printk(KERN_ERR LXP "Problem: Reg_CSM %x.\n", reg);
636
637 /* PCI9056_SPACE0_REMAP */
638 lx_plx_reg_write(chip, ePLX_PCICR, 1);
639
640 reg = lx_dsp_reg_read(chip, eReg_CSM);
641 if (reg) {
642 snd_printk(KERN_ERR LXP "Error: Reg_CSM %x.\n", reg);
643 return -EAGAIN; /* seems to be appropriate */
644 }
645 }
646
647 snd_printd(LXP "Xilinx/MicroBlaze access test successful\n");
648
649 return 0;
650}
651
652/* initialize ethersound */
653static int __devinit lx_init_ethersound_config(struct lx6464es *chip)
654{
655 int i;
656 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES);
657
7e895cfa
TB		 658 /* configure 64 io channels */
659 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) |
02bec490 660 (64 << IOCR_INPUTS_OFFSET) |
7e895cfa 661 (64 << IOCR_OUTPUTS_OFFSET) |
02bec490
TB		 662 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET);
663
02bec490
TB		 664 snd_printdd("->lx_init_ethersound\n");
665
666 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE;
667
668 /*
669 * write it to the card !
670 * this actually kicks the ES xilinx, the first time since poweron.
671 * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers
672 * is not ready before this is done, and the bit 2 in Reg_CSES is set.
673 * */
674 lx_dsp_reg_write(chip, eReg_CONFES, conf_es);
675
676 for (i = 0; i != 1000; ++i) {
677 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) {
678 snd_printd(LXP "ethersound initialized after %dms\n",
679 i);
680 goto ethersound_initialized;
681 }
682 msleep(1);
683 }
684 snd_printk(KERN_WARNING LXP
685 "ethersound could not be initialized after %dms\n", i);
686 return -ETIMEDOUT;
687
688 ethersound_initialized:
689 snd_printd(LXP "ethersound initialized\n");
690 return 0;
691}
692
693static int __devinit lx_init_get_version_features(struct lx6464es *chip)
694{
695 u32 dsp_version;
696
697 int err;
698
699 snd_printdd("->lx_init_get_version_features\n");
700
701 err = lx_dsp_get_version(chip, &dsp_version);
702
703 if (err == 0) {
704 u32 freq;
705
706 snd_printk(LXP "DSP version: V%02d.%02d #%d\n",
707 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff,
708 dsp_version & 0xff);
709
710 /* later: what firmware version do we expect? */
711
712 /* retrieve Play/Rec features */
713 /* done here because we may have to handle alternate
714 * DSP files. */
715 /* later */
716
717 /* init the EtherSound sample rate */
718 err = lx_dsp_get_clock_frequency(chip, &freq);
719 if (err == 0)
720 chip->board_sample_rate = freq;
721 snd_printd(LXP "actual clock frequency %d\n", freq);
722 } else {
723 snd_printk(KERN_ERR LXP "DSP corrupted \n");
724 err = -EAGAIN;
725 }
726
727 return err;
728}
729
730static int lx_set_granularity(struct lx6464es *chip, u32 gran)
731{
732 int err = 0;
733 u32 snapped_gran = MICROBLAZE_IBL_MIN;
734
735 snd_printdd("->lx_set_granularity\n");
736
737 /* blocksize is a power of 2 */
738 while ((snapped_gran < gran) &&
739 (snapped_gran < MICROBLAZE_IBL_MAX)) {
740 snapped_gran *= 2;
741 }
742
743 if (snapped_gran == chip->pcm_granularity)
744 return 0;
745
746 err = lx_dsp_set_granularity(chip, snapped_gran);
747 if (err < 0) {
748 snd_printk(KERN_WARNING LXP "could not set granularity\n");
749 err = -EAGAIN;
750 }
751
752 if (snapped_gran != gran)
753 snd_printk(LXP "snapped blocksize to %d\n", snapped_gran);
754
755 snd_printd(LXP "set blocksize on board %d\n", snapped_gran);
756 chip->pcm_granularity = snapped_gran;
757
758 return err;
759}
760
761/* initialize and test the xilinx dsp chip */
762static int __devinit lx_init_dsp(struct lx6464es *chip)
763{
764 int err;
765 u8 mac_address[6];
766 int i;
767
768 snd_printdd("->lx_init_dsp\n");
769
770 snd_printd(LXP "initialize board\n");
771 err = lx_init_xilinx_reset(chip);
772 if (err)
773 return err;
774
775 snd_printd(LXP "testing board\n");
776 err = lx_init_xilinx_test(chip);
777 if (err)
778 return err;
779
780 snd_printd(LXP "initialize ethersound configuration\n");
781 err = lx_init_ethersound_config(chip);
782 if (err)
783 return err;
784
785 lx_irq_enable(chip);
786
787 /** \todo the mac address should be ready by not, but it isn't,
788 * so we wait for it */
789 for (i = 0; i != 1000; ++i) {
790 err = lx_dsp_get_mac(chip, mac_address);
791 if (err)
792 return err;
793 if (mac_address[0] || mac_address[1] || mac_address[2] ||
794 mac_address[3] || mac_address[4] || mac_address[5])
795 goto mac_ready;
796 msleep(1);
797 }
798 return -ETIMEDOUT;
799
800mac_ready:
801 snd_printd(LXP "mac address ready read after: %dms\n", i);
802 snd_printk(LXP "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n",
803 mac_address[0], mac_address[1], mac_address[2],
804 mac_address[3], mac_address[4], mac_address[5]);
805
806 err = lx_init_get_version_features(chip);
807 if (err)
808 return err;
809
810 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT);
811
812 chip->playback_mute = 0;
813
814 return err;
815}
816
817static struct snd_pcm_ops lx_ops_playback = {
818 .open = lx_pcm_open,
819 .close = lx_pcm_close,
820 .ioctl = snd_pcm_lib_ioctl,
821 .prepare = lx_pcm_prepare,
822 .hw_params = lx_pcm_hw_params_playback,
823 .hw_free = lx_pcm_hw_free,
824 .trigger = lx_pcm_trigger,
825 .pointer = lx_pcm_stream_pointer,
826};
827
828static struct snd_pcm_ops lx_ops_capture = {
829 .open = lx_pcm_open,
830 .close = lx_pcm_close,
831 .ioctl = snd_pcm_lib_ioctl,
832 .prepare = lx_pcm_prepare,
833 .hw_params = lx_pcm_hw_params_capture,
834 .hw_free = lx_pcm_hw_free,
835 .trigger = lx_pcm_trigger,
836 .pointer = lx_pcm_stream_pointer,
837};
838
839static int __devinit lx_pcm_create(struct lx6464es *chip)
840{
841 int err;
842 struct snd_pcm *pcm;
843
844 u32 size = 64 * /* channels */
845 3 * /* 24 bit samples */
846 MAX_STREAM_BUFFER * /* periods */
847 MICROBLAZE_IBL_MAX * /* frames per period */
848 2; /* duplex */
849
850 size = PAGE_ALIGN(size);
851
852 /* hardcoded device name & channel count */
853 err = snd_pcm_new(chip->card, (char *)card_name, 0,
854 1, 1, &pcm);
855
856 pcm->private_data = chip;
857
858 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback);
859 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture);
860
861 pcm->info_flags = 0;
862 strcpy(pcm->name, card_name);
863
864 err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
865 snd_dma_pci_data(chip->pci),
866 size, size);
867 if (err < 0)
868 return err;
869
870 chip->pcm = pcm;
871 chip->capture_stream.is_capture = 1;
872
873 return 0;
874}
875
876static int lx_control_playback_info(struct snd_kcontrol *kcontrol,
877 struct snd_ctl_elem_info *uinfo)
878{
879 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
880 uinfo->count = 1;
881 uinfo->value.integer.min = 0;
882 uinfo->value.integer.max = 1;
883 return 0;
884}
885
886static int lx_control_playback_get(struct snd_kcontrol *kcontrol,
887 struct snd_ctl_elem_value *ucontrol)
888{
889 struct lx6464es *chip = snd_kcontrol_chip(kcontrol);
890 ucontrol->value.integer.value[0] = chip->playback_mute;
891 return 0;
892}
893
894static int lx_control_playback_put(struct snd_kcontrol *kcontrol,
895 struct snd_ctl_elem_value *ucontrol)
896{
897 struct lx6464es *chip = snd_kcontrol_chip(kcontrol);
898 int changed = 0;
899 int current_value = chip->playback_mute;
900
901 if (current_value != ucontrol->value.integer.value[0]) {
902 lx_level_unmute(chip, 0, !current_value);
903 chip->playback_mute = !current_value;
904 changed = 1;
905 }
906 return changed;
907}
908
909static struct snd_kcontrol_new lx_control_playback_switch __devinitdata = {
910 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
911 .name = "PCM Playback Switch",
912 .index = 0,
913 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
914 .private_value = 0,
915 .info = lx_control_playback_info,
916 .get = lx_control_playback_get,
917 .put = lx_control_playback_put
918};
919
920
921
922static void lx_proc_levels_read(struct snd_info_entry *entry,
923 struct snd_info_buffer *buffer)
924{
925 u32 levels[64];
926 int err;
927 int i, j;
928 struct lx6464es *chip = entry->private_data;
929
930 snd_iprintf(buffer, "capture levels:\n");
931 err = lx_level_peaks(chip, 1, 64, levels);
932 if (err < 0)
933 return;
934
935 for (i = 0; i != 8; ++i) {
936 for (j = 0; j != 8; ++j)
937 snd_iprintf(buffer, "%08x ", levels[i*8+j]);
938 snd_iprintf(buffer, "\n");
939 }
940
941 snd_iprintf(buffer, "\nplayback levels:\n");
942
943 err = lx_level_peaks(chip, 0, 64, levels);
944 if (err < 0)
945 return;
946
947 for (i = 0; i != 8; ++i) {
948 for (j = 0; j != 8; ++j)
949 snd_iprintf(buffer, "%08x ", levels[i*8+j]);
950 snd_iprintf(buffer, "\n");
951 }
952
953 snd_iprintf(buffer, "\n");
954}
955
956static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip)
957{
958 struct snd_info_entry *entry;
959 int err = snd_card_proc_new(card, "levels", &entry);
960 if (err < 0)
961 return err;
962
963 snd_info_set_text_ops(entry, chip, lx_proc_levels_read);
964 return 0;
965}
966
967
968static int __devinit snd_lx6464es_create(struct snd_card *card,
969 struct pci_dev *pci,
970 struct lx6464es **rchip)
971{
972 struct lx6464es *chip;
973 int err;
974
975 static struct snd_device_ops ops = {
976 .dev_free = snd_lx6464es_dev_free,
977 };
978
979 snd_printdd("->snd_lx6464es_create\n");
980
981 *rchip = NULL;
982
983 /* enable PCI device */
984 err = pci_enable_device(pci);
985 if (err < 0)
986 return err;
987
988 pci_set_master(pci);
989
990 /* check if we can restrict PCI DMA transfers to 32 bits */
8e20ce94 991 err = pci_set_dma_mask(pci, DMA_BIT_MASK(32));
02bec490
TB		 992 if (err < 0) {
993 snd_printk(KERN_ERR "architecture does not support "
994 "32bit PCI busmaster DMA\n");
995 pci_disable_device(pci);
996 return -ENXIO;
997 }
998
999 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1000 if (chip == NULL) {
1001 err = -ENOMEM;
1002 goto alloc_failed;
1003 }
1004
1005 chip->card = card;
1006 chip->pci = pci;
1007 chip->irq = -1;
1008
1009 /* initialize synchronization structs */
1010 spin_lock_init(&chip->lock);
1011 spin_lock_init(&chip->msg_lock);
1012 mutex_init(&chip->setup_mutex);
1013 tasklet_init(&chip->trigger_tasklet, lx_trigger_tasklet,
1014 (unsigned long)chip);
1015 tasklet_init(&chip->tasklet_capture, lx_tasklet_capture,
1016 (unsigned long)chip);
1017 tasklet_init(&chip->tasklet_playback, lx_tasklet_playback,
1018 (unsigned long)chip);
1019
1020 /* request resources */
1021 err = pci_request_regions(pci, card_name);
1022 if (err < 0)
1023 goto request_regions_failed;
1024
1025 /* plx port */
1026 chip->port_plx = pci_resource_start(pci, 1);
1027 chip->port_plx_remapped = ioport_map(chip->port_plx,
1028 pci_resource_len(pci, 1));
1029
1030 /* dsp port */
1031 chip->port_dsp_bar = pci_ioremap_bar(pci, 2);
1032
1033 err = request_irq(pci->irq, lx_interrupt, IRQF_SHARED,
1034 card_name, chip);
1035 if (err) {
1036 snd_printk(KERN_ERR LXP "unable to grab IRQ %d\n", pci->irq);
1037 goto request_irq_failed;
1038 }
1039 chip->irq = pci->irq;
1040
1041 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1042 if (err < 0)
1043 goto device_new_failed;
1044
1045 err = lx_init_dsp(chip);
1046 if (err < 0) {
1047 snd_printk(KERN_ERR LXP "error during DSP initialization\n");
1048 return err;
1049 }
1050
1051 err = lx_pcm_create(chip);
1052 if (err < 0)
1053 return err;
1054
1055 err = lx_proc_create(card, chip);
1056 if (err < 0)
1057 return err;
1058
1059 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch,
1060 chip));
1061 if (err < 0)
1062 return err;
1063
1064 snd_card_set_dev(card, &pci->dev);
1065
1066 *rchip = chip;
1067 return 0;
1068
1069device_new_failed:
1070 free_irq(pci->irq, chip);
1071
1072request_irq_failed:
1073 pci_release_regions(pci);
1074
1075request_regions_failed:
1076 kfree(chip);
1077
1078alloc_failed:
1079 pci_disable_device(pci);
1080
1081 return err;
1082}
1083
1084static int __devinit snd_lx6464es_probe(struct pci_dev *pci,
1085 const struct pci_device_id *pci_id)
1086{
1087 static int dev;
1088 struct snd_card *card;
1089 struct lx6464es *chip;
1090 int err;
1091
1092 snd_printdd("->snd_lx6464es_probe\n");
1093
1094 if (dev >= SNDRV_CARDS)
1095 return -ENODEV;
1096 if (!enable[dev]) {
1097 dev++;
1098 return -ENOENT;
1099 }
1100
7852fd08
TI		 1101 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
1102 if (err < 0)
1103 return err;
02bec490
TB		 1104
1105 err = snd_lx6464es_create(card, pci, &chip);
1106 if (err < 0) {
1107 snd_printk(KERN_ERR LXP "error during snd_lx6464es_create\n");
1108 goto out_free;
1109 }
1110
1111 strcpy(card->driver, "lx6464es");
1112 strcpy(card->shortname, "Digigram LX6464ES");
1113 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i",
1114 card->shortname, chip->port_plx,
1115 chip->port_dsp_bar, chip->irq);
1116
1117 err = snd_card_register(card);
1118 if (err < 0)
1119 goto out_free;
1120
1121 snd_printdd(LXP "initialization successful\n");
1122 pci_set_drvdata(pci, card);
1123 dev++;
1124 return 0;
1125
1126out_free:
1127 snd_card_free(card);
1128 return err;
1129
1130}
1131
1132static void __devexit snd_lx6464es_remove(struct pci_dev *pci)
1133{
1134 snd_card_free(pci_get_drvdata(pci));
1135 pci_set_drvdata(pci, NULL);
1136}
1137
1138
1139static struct pci_driver driver = {
1140 .name = "Digigram LX6464ES",
1141 .id_table = snd_lx6464es_ids,
1142 .probe = snd_lx6464es_probe,
1143 .remove = __devexit_p(snd_lx6464es_remove),
1144};
1145
1146
1147/* module initialization */
1148static int __init mod_init(void)
1149{
1150 return pci_register_driver(&driver);
1151}
1152
1153static void __exit mod_exit(void)
1154{
1155 pci_unregister_driver(&driver);
1156}
1157
1158module_init(mod_init);
1159module_exit(mod_exit);
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