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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Audio support for PS3
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * All rights reserved.
6 * Copyright 2006, 2007 Sony Corporation
7 */
8
9#include <linux/dma-mapping.h>
10#include <linux/dmapool.h>
11#include <linux/gfp.h>
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/io.h>
15#include <linux/module.h>
16
17#include <sound/asound.h>
18#include <sound/control.h>
19#include <sound/core.h>
20#include <sound/initval.h>
21#include <sound/memalloc.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24
25#include <asm/dma.h>
26#include <asm/firmware.h>
27#include <asm/lv1call.h>
28#include <asm/ps3.h>
29#include <asm/ps3av.h>
30
31#include "snd_ps3.h"
32#include "snd_ps3_reg.h"
33
34
35/*
36 * global
37 */
38static struct snd_ps3_card_info the_card;
39
40static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY;
41
42module_param_named(start_delay, snd_ps3_start_delay, uint, 0644);
43MODULE_PARM_DESC(start_delay, "time to insert silent data in ms");
44
45static int index = SNDRV_DEFAULT_IDX1;
46static char *id = SNDRV_DEFAULT_STR1;
47
48module_param(index, int, 0444);
49MODULE_PARM_DESC(index, "Index value for PS3 soundchip.");
50module_param(id, charp, 0444);
51MODULE_PARM_DESC(id, "ID string for PS3 soundchip.");
52
53
54/*
55 * PS3 audio register access
56 */
57static inline u32 read_reg(unsigned int reg)
58{
59 return in_be32(the_card.mapped_mmio_vaddr + reg);
60}
61static inline void write_reg(unsigned int reg, u32 val)
62{
63 out_be32(the_card.mapped_mmio_vaddr + reg, val);
64}
65static inline void update_reg(unsigned int reg, u32 or_val)
66{
67 u32 newval = read_reg(reg) | or_val;
68 write_reg(reg, newval);
69}
70static inline void update_mask_reg(unsigned int reg, u32 mask, u32 or_val)
71{
72 u32 newval = (read_reg(reg) & mask) | or_val;
73 write_reg(reg, newval);
74}
75
76/*
77 * ALSA defs
78 */
79static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
80 .info = (SNDRV_PCM_INFO_MMAP |
81 SNDRV_PCM_INFO_NONINTERLEAVED |
82 SNDRV_PCM_INFO_MMAP_VALID),
83 .formats = (SNDRV_PCM_FMTBIT_S16_BE |
84 SNDRV_PCM_FMTBIT_S24_BE),
85 .rates = (SNDRV_PCM_RATE_44100 |
86 SNDRV_PCM_RATE_48000 |
87 SNDRV_PCM_RATE_88200 |
88 SNDRV_PCM_RATE_96000),
89 .rate_min = 44100,
90 .rate_max = 96000,
91
92 .channels_min = 2, /* stereo only */
93 .channels_max = 2,
94
95 .buffer_bytes_max = PS3_AUDIO_FIFO_SIZE * 64,
96
97 /* interrupt by four stages */
98 .period_bytes_min = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
99 .period_bytes_max = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
100
101 .periods_min = 16,
102 .periods_max = 32, /* buffer_size_max/ period_bytes_max */
103
104 .fifo_size = PS3_AUDIO_FIFO_SIZE
105};
106
107static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
108 int count, int force_stop)
109{
110 int dma_ch, done, retries, stop_forced = 0;
111 uint32_t status;
112
113 for (dma_ch = 0; dma_ch < 8; dma_ch++) {
114 retries = count;
115 do {
116 status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
117 PS3_AUDIO_KICK_STATUS_MASK;
118 switch (status) {
119 case PS3_AUDIO_KICK_STATUS_DONE:
120 case PS3_AUDIO_KICK_STATUS_NOTIFY:
121 case PS3_AUDIO_KICK_STATUS_CLEAR:
122 case PS3_AUDIO_KICK_STATUS_ERROR:
123 done = 1;
124 break;
125 default:
126 done = 0;
127 udelay(10);
128 }
129 } while (!done && --retries);
130 if (!retries && force_stop) {
131 pr_info("%s: DMA ch %d is not stopped.",
132 __func__, dma_ch);
133 /* last resort. force to stop dma.
134 * NOTE: this cause DMA done interrupts
135 */
136 update_reg(PS3_AUDIO_CONFIG, PS3_AUDIO_CONFIG_CLEAR);
137 stop_forced = 1;
138 }
139 }
140 return stop_forced;
141}
142
143/*
144 * wait for all dma is done.
145 * NOTE: caller should reset card->running before call.
146 * If not, the interrupt handler will re-start DMA,
147 * then DMA is never stopped.
148 */
149static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card)
150{
151 int stop_forced;
152 /*
153 * wait for the last dma is done
154 */
155
156 /*
157 * expected maximum DMA done time is 5.7ms + something (DMA itself).
158 * 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next
159 * DMA kick event would occur.
160 */
161 stop_forced = snd_ps3_verify_dma_stop(card, 700, 1);
162
163 /*
164 * clear outstanding interrupts.
165 */
166 update_reg(PS3_AUDIO_INTR_0, 0);
167 update_reg(PS3_AUDIO_AX_IS, 0);
168
169 /*
170 *revert CLEAR bit since it will not reset automatically after DMA stop
171 */
172 if (stop_forced)
173 update_mask_reg(PS3_AUDIO_CONFIG, ~PS3_AUDIO_CONFIG_CLEAR, 0);
174 /* ensure the hardware sees changes */
175 wmb();
176}
177
178static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
179{
180
181 update_reg(PS3_AUDIO_KICK(0), PS3_AUDIO_KICK_REQUEST);
182 /* ensure the hardware sees the change */
183 wmb();
184}
185
186/*
187 * convert virtual addr to ioif bus addr.
188 */
189static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
190{
191 return card->dma_start_bus_addr[ch] +
192 (paddr - card->dma_start_vaddr[ch]);
193};
194
195
196/*
197 * increment ring buffer pointer.
198 * NOTE: caller must hold write spinlock
199 */
200static void snd_ps3_bump_buffer(struct snd_ps3_card_info *card,
201 enum snd_ps3_ch ch, size_t byte_count,
202 int stage)
203{
204 if (!stage)
205 card->dma_last_transfer_vaddr[ch] =
206 card->dma_next_transfer_vaddr[ch];
207 card->dma_next_transfer_vaddr[ch] += byte_count;
208 if ((card->dma_start_vaddr[ch] + (card->dma_buffer_size / 2)) <=
209 card->dma_next_transfer_vaddr[ch]) {
210 card->dma_next_transfer_vaddr[ch] = card->dma_start_vaddr[ch];
211 }
212}
213/*
214 * setup dmac to send data to audio and attenuate samples on the ring buffer
215 */
216static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
217 enum snd_ps3_dma_filltype filltype)
218{
219 /* this dmac does not support over 4G */
220 uint32_t dma_addr;
221 int fill_stages, dma_ch, stage;
222 enum snd_ps3_ch ch;
223 uint32_t ch0_kick_event = 0; /* initialize to mute gcc */
224 unsigned long irqsave;
225 int silent = 0;
226
227 switch (filltype) {
228 case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
229 silent = 1;
230 fallthrough;
231 case SND_PS3_DMA_FILLTYPE_FIRSTFILL:
232 ch0_kick_event = PS3_AUDIO_KICK_EVENT_ALWAYS;
233 break;
234
235 case SND_PS3_DMA_FILLTYPE_SILENT_RUNNING:
236 silent = 1;
237 fallthrough;
238 case SND_PS3_DMA_FILLTYPE_RUNNING:
239 ch0_kick_event = PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY;
240 break;
241 }
242
243 snd_ps3_verify_dma_stop(card, 700, 0);
244 fill_stages = 4;
245 spin_lock_irqsave(&card->dma_lock, irqsave);
246 for (ch = 0; ch < 2; ch++) {
247 for (stage = 0; stage < fill_stages; stage++) {
248 dma_ch = stage * 2 + ch;
249 if (silent)
250 dma_addr = card->null_buffer_start_dma_addr;
251 else
252 dma_addr =
253 v_to_bus(card,
254 card->dma_next_transfer_vaddr[ch],
255 ch);
256
257 write_reg(PS3_AUDIO_SOURCE(dma_ch),
258 (PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY |
259 dma_addr));
260
261 /* dst: fixed to 3wire#0 */
262 if (ch == 0)
263 write_reg(PS3_AUDIO_DEST(dma_ch),
264 (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
265 PS3_AUDIO_AO_3W_LDATA(0)));
266 else
267 write_reg(PS3_AUDIO_DEST(dma_ch),
268 (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
269 PS3_AUDIO_AO_3W_RDATA(0)));
270
271 /* count always 1 DMA block (1/2 stage = 128 bytes) */
272 write_reg(PS3_AUDIO_DMASIZE(dma_ch), 0);
273 /* bump pointer if needed */
274 if (!silent)
275 snd_ps3_bump_buffer(card, ch,
276 PS3_AUDIO_DMAC_BLOCK_SIZE,
277 stage);
278
279 /* kick event */
280 if (dma_ch == 0)
281 write_reg(PS3_AUDIO_KICK(dma_ch),
282 ch0_kick_event);
283 else
284 write_reg(PS3_AUDIO_KICK(dma_ch),
285 PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch
286 - 1) |
287 PS3_AUDIO_KICK_REQUEST);
288 }
289 }
290 /* ensure the hardware sees the change */
291 wmb();
292 spin_unlock_irqrestore(&card->dma_lock, irqsave);
293
294 return 0;
295}
296
297/*
298 * Interrupt handler
299 */
300static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
301{
302
303 uint32_t port_intr;
304 int underflow_occured = 0;
305 struct snd_ps3_card_info *card = dev_id;
306
307 if (!card->running) {
308 update_reg(PS3_AUDIO_AX_IS, 0);
309 update_reg(PS3_AUDIO_INTR_0, 0);
310 return IRQ_HANDLED;
311 }
312
313 port_intr = read_reg(PS3_AUDIO_AX_IS);
314 /*
315 *serial buffer empty detected (every 4 times),
316 *program next dma and kick it
317 */
318 if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
319 write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
320 if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
321 write_reg(PS3_AUDIO_AX_IS, port_intr);
322 underflow_occured = 1;
323 }
324 if (card->silent) {
325 /* we are still in silent time */
326 snd_ps3_program_dma(card,
327 (underflow_occured) ?
328 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
329 SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
330 snd_ps3_kick_dma(card);
331 card->silent--;
332 } else {
333 snd_ps3_program_dma(card,
334 (underflow_occured) ?
335 SND_PS3_DMA_FILLTYPE_FIRSTFILL :
336 SND_PS3_DMA_FILLTYPE_RUNNING);
337 snd_ps3_kick_dma(card);
338 snd_pcm_period_elapsed(card->substream);
339 }
340 } else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
341 write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
342 /*
343 * serial out underflow, but buffer empty not detected.
344 * in this case, fill fifo with 0 to recover. After
345 * filling dummy data, serial automatically start to
346 * consume them and then will generate normal buffer
347 * empty interrupts.
348 * If both buffer underflow and buffer empty are occurred,
349 * it is better to do nomal data transfer than empty one
350 */
351 snd_ps3_program_dma(card,
352 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
353 snd_ps3_kick_dma(card);
354 snd_ps3_program_dma(card,
355 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
356 snd_ps3_kick_dma(card);
357 }
358 /* clear interrupt cause */
359 return IRQ_HANDLED;
360};
361
362/*
363 * audio mute on/off
364 * mute_on : 0 output enabled
365 * 1 mute
366 */
367static int snd_ps3_mute(int mute_on)
368{
369 return ps3av_audio_mute(mute_on);
370}
371
372/*
373 * av setting
374 * NOTE: calling this function may generate audio interrupt.
375 */
376static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
377{
378 int ret, retries, i;
379 pr_debug("%s: start\n", __func__);
380
381 ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
382 card->avs.avs_audio_rate,
383 card->avs.avs_audio_width,
384 card->avs.avs_audio_format,
385 card->avs.avs_audio_source);
386 /*
387 * Reset the following unwanted settings:
388 */
389
390 /* disable all 3wire buffers */
391 update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
392 ~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
393 PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
394 PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
395 PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
396 0);
397 wmb(); /* ensure the hardware sees the change */
398 /* wait for actually stopped */
399 retries = 1000;
400 while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
401 (PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
402 PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
403 PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
404 PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
405 --retries) {
406 udelay(1);
407 }
408
409 /* reset buffer pointer */
410 for (i = 0; i < 4; i++) {
411 update_reg(PS3_AUDIO_AO_3WCTRL(i),
412 PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
413 udelay(10);
414 }
415 wmb(); /* ensure the hardware actually start resetting */
416
417 /* enable 3wire#0 buffer */
418 update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
419
420
421 /* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
422 update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
423 ~PS3_AUDIO_AO_3WCTRL_ASODF,
424 PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
425 update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
426 ~PS3_AUDIO_AO_SPDCTRL_SPODF,
427 PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
428 /* ensure all the setting above is written back to register */
429 wmb();
430 /* avsetting driver altered AX_IE, caller must reset it if you want */
431 pr_debug("%s: end\n", __func__);
432 return ret;
433}
434
435/*
436 * set sampling rate according to the substream
437 */
438static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
439{
440 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
441 struct snd_ps3_avsetting_info avs;
442 int ret;
443
444 avs = card->avs;
445
446 pr_debug("%s: called freq=%d width=%d\n", __func__,
447 substream->runtime->rate,
448 snd_pcm_format_width(substream->runtime->format));
449
450 pr_debug("%s: before freq=%d width=%d\n", __func__,
451 card->avs.avs_audio_rate, card->avs.avs_audio_width);
452
453 /* sample rate */
454 switch (substream->runtime->rate) {
455 case 44100:
456 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
457 break;
458 case 48000:
459 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
460 break;
461 case 88200:
462 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
463 break;
464 case 96000:
465 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
466 break;
467 default:
468 pr_info("%s: invalid rate %d\n", __func__,
469 substream->runtime->rate);
470 return 1;
471 }
472
473 /* width */
474 switch (snd_pcm_format_width(substream->runtime->format)) {
475 case 16:
476 avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
477 break;
478 case 24:
479 avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
480 break;
481 default:
482 pr_info("%s: invalid width %d\n", __func__,
483 snd_pcm_format_width(substream->runtime->format));
484 return 1;
485 }
486
487 memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
488
489 if (memcmp(&card->avs, &avs, sizeof(avs))) {
490 pr_debug("%s: after freq=%d width=%d\n", __func__,
491 card->avs.avs_audio_rate, card->avs.avs_audio_width);
492
493 card->avs = avs;
494 snd_ps3_change_avsetting(card);
495 ret = 0;
496 } else
497 ret = 1;
498
499 /* check CS non-audio bit and mute accordingly */
500 if (avs.avs_cs_info[0] & 0x02)
501 ps3av_audio_mute_analog(1); /* mute if non-audio */
502 else
503 ps3av_audio_mute_analog(0);
504
505 return ret;
506}
507
508/*
509 * PCM operators
510 */
511static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
512{
513 struct snd_pcm_runtime *runtime = substream->runtime;
514 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
515
516 /* to retrieve substream/runtime in interrupt handler */
517 card->substream = substream;
518
519 runtime->hw = snd_ps3_pcm_hw;
520
521 card->start_delay = snd_ps3_start_delay;
522
523 /* mute off */
524 snd_ps3_mute(0); /* this function sleep */
525
526 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
527 PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
528 return 0;
529};
530
531static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
532{
533 /* mute on */
534 snd_ps3_mute(1);
535 return 0;
536};
537
538static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
539 unsigned int delay_ms)
540{
541 int ret;
542 int rate ;
543
544 rate = substream->runtime->rate;
545 ret = snd_pcm_format_size(substream->runtime->format,
546 rate * delay_ms / 1000)
547 * substream->runtime->channels;
548
549 pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
550 __func__,
551 delay_ms,
552 rate,
553 snd_pcm_format_size(substream->runtime->format, rate),
554 rate * delay_ms / 1000,
555 ret);
556
557 return ret;
558};
559
560static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
561{
562 struct snd_pcm_runtime *runtime = substream->runtime;
563 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
564 unsigned long irqsave;
565
566 if (!snd_ps3_set_avsetting(substream)) {
567 /* some parameter changed */
568 write_reg(PS3_AUDIO_AX_IE,
569 PS3_AUDIO_AX_IE_ASOBEIE(0) |
570 PS3_AUDIO_AX_IE_ASOBUIE(0));
571 /*
572 * let SPDIF device re-lock with SPDIF signal,
573 * start with some silence
574 */
575 card->silent = snd_ps3_delay_to_bytes(substream,
576 card->start_delay) /
577 (PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
578 }
579
580 /* restart ring buffer pointer */
581 spin_lock_irqsave(&card->dma_lock, irqsave);
582 {
583 card->dma_buffer_size = runtime->dma_bytes;
584
585 card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
586 card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
587 card->dma_start_vaddr[SND_PS3_CH_L] =
588 runtime->dma_area;
589 card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
590
591 card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
592 card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
593 card->dma_start_vaddr[SND_PS3_CH_R] =
594 runtime->dma_area + (runtime->dma_bytes / 2);
595 card->dma_start_bus_addr[SND_PS3_CH_R] =
596 runtime->dma_addr + (runtime->dma_bytes / 2);
597
598 pr_debug("%s: vaddr=%p bus=%#llx\n", __func__,
599 card->dma_start_vaddr[SND_PS3_CH_L],
600 card->dma_start_bus_addr[SND_PS3_CH_L]);
601
602 }
603 spin_unlock_irqrestore(&card->dma_lock, irqsave);
604
605 /* ensure the hardware sees the change */
606 mb();
607
608 return 0;
609};
610
611static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
612 int cmd)
613{
614 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
615
616 switch (cmd) {
617 case SNDRV_PCM_TRIGGER_START:
618 /* clear outstanding interrupts */
619 update_reg(PS3_AUDIO_AX_IS, 0);
620
621 spin_lock(&card->dma_lock);
622 {
623 card->running = 1;
624 }
625 spin_unlock(&card->dma_lock);
626
627 snd_ps3_program_dma(card,
628 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
629 snd_ps3_kick_dma(card);
630 while (read_reg(PS3_AUDIO_KICK(7)) &
631 PS3_AUDIO_KICK_STATUS_MASK) {
632 udelay(1);
633 }
634 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
635 snd_ps3_kick_dma(card);
636 break;
637
638 case SNDRV_PCM_TRIGGER_STOP:
639 spin_lock(&card->dma_lock);
640 {
641 card->running = 0;
642 }
643 spin_unlock(&card->dma_lock);
644 snd_ps3_wait_for_dma_stop(card);
645 break;
646 default:
647 break;
648
649 }
650
651 return 0;
652};
653
654/*
655 * report current pointer
656 */
657static snd_pcm_uframes_t snd_ps3_pcm_pointer(
658 struct snd_pcm_substream *substream)
659{
660 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
661 size_t bytes;
662 snd_pcm_uframes_t ret;
663
664 spin_lock(&card->dma_lock);
665 {
666 bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
667 card->dma_start_vaddr[SND_PS3_CH_L]);
668 }
669 spin_unlock(&card->dma_lock);
670
671 ret = bytes_to_frames(substream->runtime, bytes * 2);
672
673 return ret;
674};
675
676/*
677 * SPDIF status bits controls
678 */
679static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
680 struct snd_ctl_elem_info *uinfo)
681{
682 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
683 uinfo->count = 1;
684 return 0;
685}
686
687/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
688static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
689 struct snd_ctl_elem_value *ucontrol)
690{
691 memset(ucontrol->value.iec958.status, 0xff, 8);
692 return 0;
693}
694
695static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
696 struct snd_ctl_elem_value *ucontrol)
697{
698 return 0;
699}
700
701static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
702 struct snd_ctl_elem_value *ucontrol)
703{
704 memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
705 return 0;
706}
707
708static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
709 struct snd_ctl_elem_value *ucontrol)
710{
711 if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
712 memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
713 return 1;
714 }
715 return 0;
716}
717
718static const struct snd_kcontrol_new spdif_ctls[] = {
719 {
720 .access = SNDRV_CTL_ELEM_ACCESS_READ,
721 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
722 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
723 .info = snd_ps3_spdif_mask_info,
724 .get = snd_ps3_spdif_cmask_get,
725 },
726 {
727 .access = SNDRV_CTL_ELEM_ACCESS_READ,
728 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
729 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
730 .info = snd_ps3_spdif_mask_info,
731 .get = snd_ps3_spdif_pmask_get,
732 },
733 {
734 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
735 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
736 .info = snd_ps3_spdif_mask_info,
737 .get = snd_ps3_spdif_default_get,
738 .put = snd_ps3_spdif_default_put,
739 },
740};
741
742static const struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
743 .open = snd_ps3_pcm_open,
744 .close = snd_ps3_pcm_close,
745 .prepare = snd_ps3_pcm_prepare,
746 .trigger = snd_ps3_pcm_trigger,
747 .pointer = snd_ps3_pcm_pointer,
748};
749
750
751static int snd_ps3_map_mmio(void)
752{
753 the_card.mapped_mmio_vaddr =
754 ioremap(the_card.ps3_dev->m_region->bus_addr,
755 the_card.ps3_dev->m_region->len);
756
757 if (!the_card.mapped_mmio_vaddr) {
758 pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
759 __func__, the_card.ps3_dev->m_region->lpar_addr,
760 the_card.ps3_dev->m_region->len);
761 return -ENXIO;
762 }
763
764 return 0;
765};
766
767static void snd_ps3_unmap_mmio(void)
768{
769 iounmap(the_card.mapped_mmio_vaddr);
770 the_card.mapped_mmio_vaddr = NULL;
771}
772
773static int snd_ps3_allocate_irq(void)
774{
775 int ret;
776 u64 lpar_addr, lpar_size;
777 u64 __iomem *mapped;
778
779 /* FIXME: move this to device_init (H/W probe) */
780
781 /* get irq outlet */
782 ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
783 if (ret) {
784 pr_info("%s: device map 1 failed %d\n", __func__,
785 ret);
786 return -ENXIO;
787 }
788
789 mapped = ioremap(lpar_addr, lpar_size);
790 if (!mapped) {
791 pr_info("%s: ioremap 1 failed \n", __func__);
792 return -ENXIO;
793 }
794
795 the_card.audio_irq_outlet = in_be64(mapped);
796
797 iounmap(mapped);
798 ret = lv1_gpu_device_unmap(1);
799 if (ret)
800 pr_info("%s: unmap 1 failed\n", __func__);
801
802 /* irq */
803 ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
804 the_card.audio_irq_outlet,
805 &the_card.irq_no);
806 if (ret) {
807 pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
808 return ret;
809 }
810
811 ret = request_irq(the_card.irq_no, snd_ps3_interrupt, 0,
812 SND_PS3_DRIVER_NAME, &the_card);
813 if (ret) {
814 pr_info("%s: request_irq failed (%d)\n", __func__, ret);
815 goto cleanup_irq;
816 }
817
818 return 0;
819
820 cleanup_irq:
821 ps3_irq_plug_destroy(the_card.irq_no);
822 return ret;
823};
824
825static void snd_ps3_free_irq(void)
826{
827 free_irq(the_card.irq_no, &the_card);
828 ps3_irq_plug_destroy(the_card.irq_no);
829}
830
831static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
832{
833 uint64_t val;
834 int ret;
835
836 val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
837 (0x03UL << 24) |
838 (0x0fUL << 12) |
839 (PS3_AUDIO_IOID);
840
841 ret = lv1_gpu_attribute(0x100, 0x007, val);
842 if (ret)
843 pr_info("%s: gpu_attribute failed %d\n", __func__,
844 ret);
845}
846
847static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
848{
849 /*
850 * avsetting driver seems to never change the following
851 * so, init them here once
852 */
853
854 /* no dma interrupt needed */
855 write_reg(PS3_AUDIO_INTR_EN_0, 0);
856
857 /* use every 4 buffer empty interrupt */
858 update_mask_reg(PS3_AUDIO_AX_IC,
859 PS3_AUDIO_AX_IC_AASOIMD_MASK,
860 PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
861
862 /* enable 3wire clocks */
863 update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
864 ~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
865 PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
866 0);
867 update_reg(PS3_AUDIO_AO_3WMCTRL,
868 PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
869}
870
871static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
872{
873 int ret;
874 pr_debug("%s: start\n", __func__);
875 card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
876 card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
877 card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
878 card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
879 card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
880 memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
881
882 ret = snd_ps3_change_avsetting(card);
883
884 snd_ps3_audio_fixup(card);
885
886 /* to start to generate SPDIF signal, fill data */
887 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
888 snd_ps3_kick_dma(card);
889 pr_debug("%s: end\n", __func__);
890 return ret;
891}
892
893static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
894{
895 int i, ret;
896 u64 lpar_addr, lpar_size;
897 static u64 dummy_mask;
898
899 the_card.ps3_dev = dev;
900
901 ret = ps3_open_hv_device(dev);
902
903 if (ret)
904 return -ENXIO;
905
906 /* setup MMIO */
907 ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
908 if (ret) {
909 pr_info("%s: device map 2 failed %d\n", __func__, ret);
910 goto clean_open;
911 }
912 ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
913 PAGE_SHIFT);
914
915 ret = snd_ps3_map_mmio();
916 if (ret)
917 goto clean_dev_map;
918
919 /* setup DMA area */
920 ps3_dma_region_init(dev, dev->d_region,
921 PAGE_SHIFT, /* use system page size */
922 0, /* dma type; not used */
923 NULL,
924 ALIGN(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
925 dev->d_region->ioid = PS3_AUDIO_IOID;
926
927 ret = ps3_dma_region_create(dev->d_region);
928 if (ret) {
929 pr_info("%s: region_create\n", __func__);
930 goto clean_mmio;
931 }
932
933 dummy_mask = DMA_BIT_MASK(32);
934 dev->core.dma_mask = &dummy_mask;
935 dma_set_coherent_mask(&dev->core, dummy_mask);
936
937 snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
938
939 /* CONFIG_SND_PS3_DEFAULT_START_DELAY */
940 the_card.start_delay = snd_ps3_start_delay;
941
942 /* irq */
943 if (snd_ps3_allocate_irq()) {
944 ret = -ENXIO;
945 goto clean_dma_region;
946 }
947
948 /* create card instance */
949 ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
950 0, &the_card.card);
951 if (ret < 0)
952 goto clean_irq;
953
954 strcpy(the_card.card->driver, "PS3");
955 strcpy(the_card.card->shortname, "PS3");
956 strcpy(the_card.card->longname, "PS3 sound");
957
958 /* create control elements */
959 for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
960 ret = snd_ctl_add(the_card.card,
961 snd_ctl_new1(&spdif_ctls[i], &the_card));
962 if (ret < 0)
963 goto clean_card;
964 }
965
966 /* create PCM devices instance */
967 /* NOTE:this driver works assuming pcm:substream = 1:1 */
968 ret = snd_pcm_new(the_card.card,
969 "SPDIF",
970 0, /* instance index, will be stored pcm.device*/
971 1, /* output substream */
972 0, /* input substream */
973 &(the_card.pcm));
974 if (ret)
975 goto clean_card;
976
977 the_card.pcm->private_data = &the_card;
978 strcpy(the_card.pcm->name, "SPDIF");
979
980 /* set pcm ops */
981 snd_pcm_set_ops(the_card.pcm, SNDRV_PCM_STREAM_PLAYBACK,
982 &snd_ps3_pcm_spdif_ops);
983
984 the_card.pcm->info_flags = SNDRV_PCM_INFO_NONINTERLEAVED;
985 /* pre-alloc PCM DMA buffer*/
986 snd_pcm_set_managed_buffer_all(the_card.pcm,
987 SNDRV_DMA_TYPE_DEV,
988 &dev->core,
989 SND_PS3_PCM_PREALLOC_SIZE,
990 SND_PS3_PCM_PREALLOC_SIZE);
991
992 /*
993 * allocate null buffer
994 * its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
995 * PAGE_SIZE is enogh
996 */
997 the_card.null_buffer_start_vaddr =
998 dma_alloc_coherent(&the_card.ps3_dev->core,
999 PAGE_SIZE,
1000 &the_card.null_buffer_start_dma_addr,
1001 GFP_KERNEL);
1002 if (!the_card.null_buffer_start_vaddr) {
1003 pr_info("%s: nullbuffer alloc failed\n", __func__);
1004 ret = -ENOMEM;
1005 goto clean_card;
1006 }
1007 pr_debug("%s: null vaddr=%p dma=%#llx\n", __func__,
1008 the_card.null_buffer_start_vaddr,
1009 the_card.null_buffer_start_dma_addr);
1010 /* set default sample rate/word width */
1011 snd_ps3_init_avsetting(&the_card);
1012
1013 /* register the card */
1014 ret = snd_card_register(the_card.card);
1015 if (ret < 0)
1016 goto clean_dma_map;
1017
1018 pr_info("%s started. start_delay=%dms\n",
1019 the_card.card->longname, the_card.start_delay);
1020 return 0;
1021
1022clean_dma_map:
1023 dma_free_coherent(&the_card.ps3_dev->core,
1024 PAGE_SIZE,
1025 the_card.null_buffer_start_vaddr,
1026 the_card.null_buffer_start_dma_addr);
1027clean_card:
1028 snd_card_free(the_card.card);
1029clean_irq:
1030 snd_ps3_free_irq();
1031clean_dma_region:
1032 ps3_dma_region_free(dev->d_region);
1033clean_mmio:
1034 snd_ps3_unmap_mmio();
1035clean_dev_map:
1036 lv1_gpu_device_unmap(2);
1037clean_open:
1038 ps3_close_hv_device(dev);
1039 /*
1040 * there is no destructor function to pcm.
1041 * midlayer automatically releases if the card removed
1042 */
1043 return ret;
1044}; /* snd_ps3_probe */
1045
1046/* called when module removal */
1047static void snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
1048{
1049 pr_info("%s:start id=%d\n", __func__, dev->match_id);
1050
1051 /*
1052 * ctl and preallocate buffer will be freed in
1053 * snd_card_free
1054 */
1055 snd_card_free(the_card.card);
1056
1057 dma_free_coherent(&dev->core,
1058 PAGE_SIZE,
1059 the_card.null_buffer_start_vaddr,
1060 the_card.null_buffer_start_dma_addr);
1061
1062 ps3_dma_region_free(dev->d_region);
1063
1064 snd_ps3_free_irq();
1065 snd_ps3_unmap_mmio();
1066
1067 lv1_gpu_device_unmap(2);
1068 ps3_close_hv_device(dev);
1069 pr_info("%s:end id=%d\n", __func__, dev->match_id);
1070} /* snd_ps3_remove */
1071
1072static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
1073 .match_id = PS3_MATCH_ID_SOUND,
1074 .probe = snd_ps3_driver_probe,
1075 .remove = snd_ps3_driver_remove,
1076 .shutdown = snd_ps3_driver_remove,
1077 .core = {
1078 .name = SND_PS3_DRIVER_NAME,
1079 .owner = THIS_MODULE,
1080 },
1081};
1082
1083
1084/*
1085 * module/subsystem initialize/terminate
1086 */
1087static int __init snd_ps3_init(void)
1088{
1089 int ret;
1090
1091 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
1092 return -ENXIO;
1093
1094 memset(&the_card, 0, sizeof(the_card));
1095 spin_lock_init(&the_card.dma_lock);
1096
1097 /* register systembus DRIVER, this calls our probe() func */
1098 ret = ps3_system_bus_driver_register(&snd_ps3_bus_driver_info);
1099
1100 return ret;
1101}
1102module_init(snd_ps3_init);
1103
1104static void __exit snd_ps3_exit(void)
1105{
1106 ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
1107}
1108module_exit(snd_ps3_exit);
1109
1110MODULE_LICENSE("GPL v2");
1111MODULE_DESCRIPTION("PS3 sound driver");
1112MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1113MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);
1/*
2 * Audio support for PS3
3 * Copyright (C) 2007 Sony Computer Entertainment Inc.
4 * All rights reserved.
5 * Copyright 2006, 2007 Sony Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; version 2 of the Licence.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#include <linux/dma-mapping.h>
22#include <linux/dmapool.h>
23#include <linux/gfp.h>
24#include <linux/init.h>
25#include <linux/interrupt.h>
26#include <linux/io.h>
27#include <linux/module.h>
28
29#include <sound/asound.h>
30#include <sound/control.h>
31#include <sound/core.h>
32#include <sound/initval.h>
33#include <sound/memalloc.h>
34#include <sound/pcm.h>
35#include <sound/pcm_params.h>
36
37#include <asm/dma.h>
38#include <asm/firmware.h>
39#include <asm/lv1call.h>
40#include <asm/ps3.h>
41#include <asm/ps3av.h>
42
43#include "snd_ps3.h"
44#include "snd_ps3_reg.h"
45
46
47/*
48 * global
49 */
50static struct snd_ps3_card_info the_card;
51
52static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY;
53
54module_param_named(start_delay, snd_ps3_start_delay, uint, 0644);
55MODULE_PARM_DESC(start_delay, "time to insert silent data in ms");
56
57static int index = SNDRV_DEFAULT_IDX1;
58static char *id = SNDRV_DEFAULT_STR1;
59
60module_param(index, int, 0444);
61MODULE_PARM_DESC(index, "Index value for PS3 soundchip.");
62module_param(id, charp, 0444);
63MODULE_PARM_DESC(id, "ID string for PS3 soundchip.");
64
65
66/*
67 * PS3 audio register access
68 */
69static inline u32 read_reg(unsigned int reg)
70{
71 return in_be32(the_card.mapped_mmio_vaddr + reg);
72}
73static inline void write_reg(unsigned int reg, u32 val)
74{
75 out_be32(the_card.mapped_mmio_vaddr + reg, val);
76}
77static inline void update_reg(unsigned int reg, u32 or_val)
78{
79 u32 newval = read_reg(reg) | or_val;
80 write_reg(reg, newval);
81}
82static inline void update_mask_reg(unsigned int reg, u32 mask, u32 or_val)
83{
84 u32 newval = (read_reg(reg) & mask) | or_val;
85 write_reg(reg, newval);
86}
87
88/*
89 * ALSA defs
90 */
91static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
92 .info = (SNDRV_PCM_INFO_MMAP |
93 SNDRV_PCM_INFO_NONINTERLEAVED |
94 SNDRV_PCM_INFO_MMAP_VALID),
95 .formats = (SNDRV_PCM_FMTBIT_S16_BE |
96 SNDRV_PCM_FMTBIT_S24_BE),
97 .rates = (SNDRV_PCM_RATE_44100 |
98 SNDRV_PCM_RATE_48000 |
99 SNDRV_PCM_RATE_88200 |
100 SNDRV_PCM_RATE_96000),
101 .rate_min = 44100,
102 .rate_max = 96000,
103
104 .channels_min = 2, /* stereo only */
105 .channels_max = 2,
106
107 .buffer_bytes_max = PS3_AUDIO_FIFO_SIZE * 64,
108
109 /* interrupt by four stages */
110 .period_bytes_min = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
111 .period_bytes_max = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
112
113 .periods_min = 16,
114 .periods_max = 32, /* buffer_size_max/ period_bytes_max */
115
116 .fifo_size = PS3_AUDIO_FIFO_SIZE
117};
118
119static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
120 int count, int force_stop)
121{
122 int dma_ch, done, retries, stop_forced = 0;
123 uint32_t status;
124
125 for (dma_ch = 0; dma_ch < 8; dma_ch++) {
126 retries = count;
127 do {
128 status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
129 PS3_AUDIO_KICK_STATUS_MASK;
130 switch (status) {
131 case PS3_AUDIO_KICK_STATUS_DONE:
132 case PS3_AUDIO_KICK_STATUS_NOTIFY:
133 case PS3_AUDIO_KICK_STATUS_CLEAR:
134 case PS3_AUDIO_KICK_STATUS_ERROR:
135 done = 1;
136 break;
137 default:
138 done = 0;
139 udelay(10);
140 }
141 } while (!done && --retries);
142 if (!retries && force_stop) {
143 pr_info("%s: DMA ch %d is not stopped.",
144 __func__, dma_ch);
145 /* last resort. force to stop dma.
146 * NOTE: this cause DMA done interrupts
147 */
148 update_reg(PS3_AUDIO_CONFIG, PS3_AUDIO_CONFIG_CLEAR);
149 stop_forced = 1;
150 }
151 }
152 return stop_forced;
153}
154
155/*
156 * wait for all dma is done.
157 * NOTE: caller should reset card->running before call.
158 * If not, the interrupt handler will re-start DMA,
159 * then DMA is never stopped.
160 */
161static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card)
162{
163 int stop_forced;
164 /*
165 * wait for the last dma is done
166 */
167
168 /*
169 * expected maximum DMA done time is 5.7ms + something (DMA itself).
170 * 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next
171 * DMA kick event would occur.
172 */
173 stop_forced = snd_ps3_verify_dma_stop(card, 700, 1);
174
175 /*
176 * clear outstanding interrupts.
177 */
178 update_reg(PS3_AUDIO_INTR_0, 0);
179 update_reg(PS3_AUDIO_AX_IS, 0);
180
181 /*
182 *revert CLEAR bit since it will not reset automatically after DMA stop
183 */
184 if (stop_forced)
185 update_mask_reg(PS3_AUDIO_CONFIG, ~PS3_AUDIO_CONFIG_CLEAR, 0);
186 /* ensure the hardware sees changes */
187 wmb();
188}
189
190static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
191{
192
193 update_reg(PS3_AUDIO_KICK(0), PS3_AUDIO_KICK_REQUEST);
194 /* ensure the hardware sees the change */
195 wmb();
196}
197
198/*
199 * convert virtual addr to ioif bus addr.
200 */
201static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
202{
203 return card->dma_start_bus_addr[ch] +
204 (paddr - card->dma_start_vaddr[ch]);
205};
206
207
208/*
209 * increment ring buffer pointer.
210 * NOTE: caller must hold write spinlock
211 */
212static void snd_ps3_bump_buffer(struct snd_ps3_card_info *card,
213 enum snd_ps3_ch ch, size_t byte_count,
214 int stage)
215{
216 if (!stage)
217 card->dma_last_transfer_vaddr[ch] =
218 card->dma_next_transfer_vaddr[ch];
219 card->dma_next_transfer_vaddr[ch] += byte_count;
220 if ((card->dma_start_vaddr[ch] + (card->dma_buffer_size / 2)) <=
221 card->dma_next_transfer_vaddr[ch]) {
222 card->dma_next_transfer_vaddr[ch] = card->dma_start_vaddr[ch];
223 }
224}
225/*
226 * setup dmac to send data to audio and attenuate samples on the ring buffer
227 */
228static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
229 enum snd_ps3_dma_filltype filltype)
230{
231 /* this dmac does not support over 4G */
232 uint32_t dma_addr;
233 int fill_stages, dma_ch, stage;
234 enum snd_ps3_ch ch;
235 uint32_t ch0_kick_event = 0; /* initialize to mute gcc */
236 void *start_vaddr;
237 unsigned long irqsave;
238 int silent = 0;
239
240 switch (filltype) {
241 case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
242 silent = 1;
243 /* intentionally fall thru */
244 case SND_PS3_DMA_FILLTYPE_FIRSTFILL:
245 ch0_kick_event = PS3_AUDIO_KICK_EVENT_ALWAYS;
246 break;
247
248 case SND_PS3_DMA_FILLTYPE_SILENT_RUNNING:
249 silent = 1;
250 /* intentionally fall thru */
251 case SND_PS3_DMA_FILLTYPE_RUNNING:
252 ch0_kick_event = PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY;
253 break;
254 }
255
256 snd_ps3_verify_dma_stop(card, 700, 0);
257 fill_stages = 4;
258 spin_lock_irqsave(&card->dma_lock, irqsave);
259 for (ch = 0; ch < 2; ch++) {
260 start_vaddr = card->dma_next_transfer_vaddr[0];
261 for (stage = 0; stage < fill_stages; stage++) {
262 dma_ch = stage * 2 + ch;
263 if (silent)
264 dma_addr = card->null_buffer_start_dma_addr;
265 else
266 dma_addr =
267 v_to_bus(card,
268 card->dma_next_transfer_vaddr[ch],
269 ch);
270
271 write_reg(PS3_AUDIO_SOURCE(dma_ch),
272 (PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY |
273 dma_addr));
274
275 /* dst: fixed to 3wire#0 */
276 if (ch == 0)
277 write_reg(PS3_AUDIO_DEST(dma_ch),
278 (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
279 PS3_AUDIO_AO_3W_LDATA(0)));
280 else
281 write_reg(PS3_AUDIO_DEST(dma_ch),
282 (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
283 PS3_AUDIO_AO_3W_RDATA(0)));
284
285 /* count always 1 DMA block (1/2 stage = 128 bytes) */
286 write_reg(PS3_AUDIO_DMASIZE(dma_ch), 0);
287 /* bump pointer if needed */
288 if (!silent)
289 snd_ps3_bump_buffer(card, ch,
290 PS3_AUDIO_DMAC_BLOCK_SIZE,
291 stage);
292
293 /* kick event */
294 if (dma_ch == 0)
295 write_reg(PS3_AUDIO_KICK(dma_ch),
296 ch0_kick_event);
297 else
298 write_reg(PS3_AUDIO_KICK(dma_ch),
299 PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch
300 - 1) |
301 PS3_AUDIO_KICK_REQUEST);
302 }
303 }
304 /* ensure the hardware sees the change */
305 wmb();
306 spin_unlock_irqrestore(&card->dma_lock, irqsave);
307
308 return 0;
309}
310
311/*
312 * Interrupt handler
313 */
314static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
315{
316
317 uint32_t port_intr;
318 int underflow_occured = 0;
319 struct snd_ps3_card_info *card = dev_id;
320
321 if (!card->running) {
322 update_reg(PS3_AUDIO_AX_IS, 0);
323 update_reg(PS3_AUDIO_INTR_0, 0);
324 return IRQ_HANDLED;
325 }
326
327 port_intr = read_reg(PS3_AUDIO_AX_IS);
328 /*
329 *serial buffer empty detected (every 4 times),
330 *program next dma and kick it
331 */
332 if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
333 write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
334 if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
335 write_reg(PS3_AUDIO_AX_IS, port_intr);
336 underflow_occured = 1;
337 }
338 if (card->silent) {
339 /* we are still in silent time */
340 snd_ps3_program_dma(card,
341 (underflow_occured) ?
342 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
343 SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
344 snd_ps3_kick_dma(card);
345 card->silent--;
346 } else {
347 snd_ps3_program_dma(card,
348 (underflow_occured) ?
349 SND_PS3_DMA_FILLTYPE_FIRSTFILL :
350 SND_PS3_DMA_FILLTYPE_RUNNING);
351 snd_ps3_kick_dma(card);
352 snd_pcm_period_elapsed(card->substream);
353 }
354 } else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
355 write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
356 /*
357 * serial out underflow, but buffer empty not detected.
358 * in this case, fill fifo with 0 to recover. After
359 * filling dummy data, serial automatically start to
360 * consume them and then will generate normal buffer
361 * empty interrupts.
362 * If both buffer underflow and buffer empty are occurred,
363 * it is better to do nomal data transfer than empty one
364 */
365 snd_ps3_program_dma(card,
366 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
367 snd_ps3_kick_dma(card);
368 snd_ps3_program_dma(card,
369 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
370 snd_ps3_kick_dma(card);
371 }
372 /* clear interrupt cause */
373 return IRQ_HANDLED;
374};
375
376/*
377 * audio mute on/off
378 * mute_on : 0 output enabled
379 * 1 mute
380 */
381static int snd_ps3_mute(int mute_on)
382{
383 return ps3av_audio_mute(mute_on);
384}
385
386/*
387 * av setting
388 * NOTE: calling this function may generate audio interrupt.
389 */
390static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
391{
392 int ret, retries, i;
393 pr_debug("%s: start\n", __func__);
394
395 ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
396 card->avs.avs_audio_rate,
397 card->avs.avs_audio_width,
398 card->avs.avs_audio_format,
399 card->avs.avs_audio_source);
400 /*
401 * Reset the following unwanted settings:
402 */
403
404 /* disable all 3wire buffers */
405 update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
406 ~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
407 PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
408 PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
409 PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
410 0);
411 wmb(); /* ensure the hardware sees the change */
412 /* wait for actually stopped */
413 retries = 1000;
414 while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
415 (PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
416 PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
417 PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
418 PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
419 --retries) {
420 udelay(1);
421 }
422
423 /* reset buffer pointer */
424 for (i = 0; i < 4; i++) {
425 update_reg(PS3_AUDIO_AO_3WCTRL(i),
426 PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
427 udelay(10);
428 }
429 wmb(); /* ensure the hardware actually start resetting */
430
431 /* enable 3wire#0 buffer */
432 update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
433
434
435 /* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
436 update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
437 ~PS3_AUDIO_AO_3WCTRL_ASODF,
438 PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
439 update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
440 ~PS3_AUDIO_AO_SPDCTRL_SPODF,
441 PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
442 /* ensure all the setting above is written back to register */
443 wmb();
444 /* avsetting driver altered AX_IE, caller must reset it if you want */
445 pr_debug("%s: end\n", __func__);
446 return ret;
447}
448
449/*
450 * set sampling rate according to the substream
451 */
452static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
453{
454 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
455 struct snd_ps3_avsetting_info avs;
456 int ret;
457
458 avs = card->avs;
459
460 pr_debug("%s: called freq=%d width=%d\n", __func__,
461 substream->runtime->rate,
462 snd_pcm_format_width(substream->runtime->format));
463
464 pr_debug("%s: before freq=%d width=%d\n", __func__,
465 card->avs.avs_audio_rate, card->avs.avs_audio_width);
466
467 /* sample rate */
468 switch (substream->runtime->rate) {
469 case 44100:
470 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
471 break;
472 case 48000:
473 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
474 break;
475 case 88200:
476 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
477 break;
478 case 96000:
479 avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
480 break;
481 default:
482 pr_info("%s: invalid rate %d\n", __func__,
483 substream->runtime->rate);
484 return 1;
485 }
486
487 /* width */
488 switch (snd_pcm_format_width(substream->runtime->format)) {
489 case 16:
490 avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
491 break;
492 case 24:
493 avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
494 break;
495 default:
496 pr_info("%s: invalid width %d\n", __func__,
497 snd_pcm_format_width(substream->runtime->format));
498 return 1;
499 }
500
501 memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
502
503 if (memcmp(&card->avs, &avs, sizeof(avs))) {
504 pr_debug("%s: after freq=%d width=%d\n", __func__,
505 card->avs.avs_audio_rate, card->avs.avs_audio_width);
506
507 card->avs = avs;
508 snd_ps3_change_avsetting(card);
509 ret = 0;
510 } else
511 ret = 1;
512
513 /* check CS non-audio bit and mute accordingly */
514 if (avs.avs_cs_info[0] & 0x02)
515 ps3av_audio_mute_analog(1); /* mute if non-audio */
516 else
517 ps3av_audio_mute_analog(0);
518
519 return ret;
520}
521
522/*
523 * PCM operators
524 */
525static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
526{
527 struct snd_pcm_runtime *runtime = substream->runtime;
528 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
529 int pcm_index;
530
531 pcm_index = substream->pcm->device;
532 /* to retrieve substream/runtime in interrupt handler */
533 card->substream = substream;
534
535 runtime->hw = snd_ps3_pcm_hw;
536
537 card->start_delay = snd_ps3_start_delay;
538
539 /* mute off */
540 snd_ps3_mute(0); /* this function sleep */
541
542 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
543 PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
544 return 0;
545};
546
547static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
548{
549 /* mute on */
550 snd_ps3_mute(1);
551 return 0;
552};
553
554static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
555 struct snd_pcm_hw_params *hw_params)
556{
557 size_t size;
558
559 /* alloc transport buffer */
560 size = params_buffer_bytes(hw_params);
561 snd_pcm_lib_malloc_pages(substream, size);
562 return 0;
563};
564
565static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
566{
567 return snd_pcm_lib_free_pages(substream);
568};
569
570static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
571 unsigned int delay_ms)
572{
573 int ret;
574 int rate ;
575
576 rate = substream->runtime->rate;
577 ret = snd_pcm_format_size(substream->runtime->format,
578 rate * delay_ms / 1000)
579 * substream->runtime->channels;
580
581 pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
582 __func__,
583 delay_ms,
584 rate,
585 snd_pcm_format_size(substream->runtime->format, rate),
586 rate * delay_ms / 1000,
587 ret);
588
589 return ret;
590};
591
592static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
593{
594 struct snd_pcm_runtime *runtime = substream->runtime;
595 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
596 unsigned long irqsave;
597
598 if (!snd_ps3_set_avsetting(substream)) {
599 /* some parameter changed */
600 write_reg(PS3_AUDIO_AX_IE,
601 PS3_AUDIO_AX_IE_ASOBEIE(0) |
602 PS3_AUDIO_AX_IE_ASOBUIE(0));
603 /*
604 * let SPDIF device re-lock with SPDIF signal,
605 * start with some silence
606 */
607 card->silent = snd_ps3_delay_to_bytes(substream,
608 card->start_delay) /
609 (PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
610 }
611
612 /* restart ring buffer pointer */
613 spin_lock_irqsave(&card->dma_lock, irqsave);
614 {
615 card->dma_buffer_size = runtime->dma_bytes;
616
617 card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
618 card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
619 card->dma_start_vaddr[SND_PS3_CH_L] =
620 runtime->dma_area;
621 card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
622
623 card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
624 card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
625 card->dma_start_vaddr[SND_PS3_CH_R] =
626 runtime->dma_area + (runtime->dma_bytes / 2);
627 card->dma_start_bus_addr[SND_PS3_CH_R] =
628 runtime->dma_addr + (runtime->dma_bytes / 2);
629
630 pr_debug("%s: vaddr=%p bus=%#llx\n", __func__,
631 card->dma_start_vaddr[SND_PS3_CH_L],
632 card->dma_start_bus_addr[SND_PS3_CH_L]);
633
634 }
635 spin_unlock_irqrestore(&card->dma_lock, irqsave);
636
637 /* ensure the hardware sees the change */
638 mb();
639
640 return 0;
641};
642
643static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
644 int cmd)
645{
646 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
647 int ret = 0;
648
649 switch (cmd) {
650 case SNDRV_PCM_TRIGGER_START:
651 /* clear outstanding interrupts */
652 update_reg(PS3_AUDIO_AX_IS, 0);
653
654 spin_lock(&card->dma_lock);
655 {
656 card->running = 1;
657 }
658 spin_unlock(&card->dma_lock);
659
660 snd_ps3_program_dma(card,
661 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
662 snd_ps3_kick_dma(card);
663 while (read_reg(PS3_AUDIO_KICK(7)) &
664 PS3_AUDIO_KICK_STATUS_MASK) {
665 udelay(1);
666 }
667 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
668 snd_ps3_kick_dma(card);
669 break;
670
671 case SNDRV_PCM_TRIGGER_STOP:
672 spin_lock(&card->dma_lock);
673 {
674 card->running = 0;
675 }
676 spin_unlock(&card->dma_lock);
677 snd_ps3_wait_for_dma_stop(card);
678 break;
679 default:
680 break;
681
682 }
683
684 return ret;
685};
686
687/*
688 * report current pointer
689 */
690static snd_pcm_uframes_t snd_ps3_pcm_pointer(
691 struct snd_pcm_substream *substream)
692{
693 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
694 size_t bytes;
695 snd_pcm_uframes_t ret;
696
697 spin_lock(&card->dma_lock);
698 {
699 bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
700 card->dma_start_vaddr[SND_PS3_CH_L]);
701 }
702 spin_unlock(&card->dma_lock);
703
704 ret = bytes_to_frames(substream->runtime, bytes * 2);
705
706 return ret;
707};
708
709/*
710 * SPDIF status bits controls
711 */
712static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
713 struct snd_ctl_elem_info *uinfo)
714{
715 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
716 uinfo->count = 1;
717 return 0;
718}
719
720/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
721static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
722 struct snd_ctl_elem_value *ucontrol)
723{
724 memset(ucontrol->value.iec958.status, 0xff, 8);
725 return 0;
726}
727
728static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
729 struct snd_ctl_elem_value *ucontrol)
730{
731 return 0;
732}
733
734static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
735 struct snd_ctl_elem_value *ucontrol)
736{
737 memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
738 return 0;
739}
740
741static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
742 struct snd_ctl_elem_value *ucontrol)
743{
744 if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
745 memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
746 return 1;
747 }
748 return 0;
749}
750
751static struct snd_kcontrol_new spdif_ctls[] = {
752 {
753 .access = SNDRV_CTL_ELEM_ACCESS_READ,
754 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
755 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
756 .info = snd_ps3_spdif_mask_info,
757 .get = snd_ps3_spdif_cmask_get,
758 },
759 {
760 .access = SNDRV_CTL_ELEM_ACCESS_READ,
761 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
762 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
763 .info = snd_ps3_spdif_mask_info,
764 .get = snd_ps3_spdif_pmask_get,
765 },
766 {
767 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
768 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
769 .info = snd_ps3_spdif_mask_info,
770 .get = snd_ps3_spdif_default_get,
771 .put = snd_ps3_spdif_default_put,
772 },
773};
774
775static struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
776 .open = snd_ps3_pcm_open,
777 .close = snd_ps3_pcm_close,
778 .ioctl = snd_pcm_lib_ioctl,
779 .hw_params = snd_ps3_pcm_hw_params,
780 .hw_free = snd_ps3_pcm_hw_free,
781 .prepare = snd_ps3_pcm_prepare,
782 .trigger = snd_ps3_pcm_trigger,
783 .pointer = snd_ps3_pcm_pointer,
784};
785
786
787static int snd_ps3_map_mmio(void)
788{
789 the_card.mapped_mmio_vaddr =
790 ioremap(the_card.ps3_dev->m_region->bus_addr,
791 the_card.ps3_dev->m_region->len);
792
793 if (!the_card.mapped_mmio_vaddr) {
794 pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
795 __func__, the_card.ps3_dev->m_region->lpar_addr,
796 the_card.ps3_dev->m_region->len);
797 return -ENXIO;
798 }
799
800 return 0;
801};
802
803static void snd_ps3_unmap_mmio(void)
804{
805 iounmap(the_card.mapped_mmio_vaddr);
806 the_card.mapped_mmio_vaddr = NULL;
807}
808
809static int snd_ps3_allocate_irq(void)
810{
811 int ret;
812 u64 lpar_addr, lpar_size;
813 u64 __iomem *mapped;
814
815 /* FIXME: move this to device_init (H/W probe) */
816
817 /* get irq outlet */
818 ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
819 if (ret) {
820 pr_info("%s: device map 1 failed %d\n", __func__,
821 ret);
822 return -ENXIO;
823 }
824
825 mapped = ioremap(lpar_addr, lpar_size);
826 if (!mapped) {
827 pr_info("%s: ioremap 1 failed \n", __func__);
828 return -ENXIO;
829 }
830
831 the_card.audio_irq_outlet = in_be64(mapped);
832
833 iounmap(mapped);
834 ret = lv1_gpu_device_unmap(1);
835 if (ret)
836 pr_info("%s: unmap 1 failed\n", __func__);
837
838 /* irq */
839 ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
840 the_card.audio_irq_outlet,
841 &the_card.irq_no);
842 if (ret) {
843 pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
844 return ret;
845 }
846
847 ret = request_irq(the_card.irq_no, snd_ps3_interrupt, 0,
848 SND_PS3_DRIVER_NAME, &the_card);
849 if (ret) {
850 pr_info("%s: request_irq failed (%d)\n", __func__, ret);
851 goto cleanup_irq;
852 }
853
854 return 0;
855
856 cleanup_irq:
857 ps3_irq_plug_destroy(the_card.irq_no);
858 return ret;
859};
860
861static void snd_ps3_free_irq(void)
862{
863 free_irq(the_card.irq_no, &the_card);
864 ps3_irq_plug_destroy(the_card.irq_no);
865}
866
867static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
868{
869 uint64_t val;
870 int ret;
871
872 val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
873 (0x03UL << 24) |
874 (0x0fUL << 12) |
875 (PS3_AUDIO_IOID);
876
877 ret = lv1_gpu_attribute(0x100, 0x007, val);
878 if (ret)
879 pr_info("%s: gpu_attribute failed %d\n", __func__,
880 ret);
881}
882
883static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
884{
885 /*
886 * avsetting driver seems to never change the followings
887 * so, init them here once
888 */
889
890 /* no dma interrupt needed */
891 write_reg(PS3_AUDIO_INTR_EN_0, 0);
892
893 /* use every 4 buffer empty interrupt */
894 update_mask_reg(PS3_AUDIO_AX_IC,
895 PS3_AUDIO_AX_IC_AASOIMD_MASK,
896 PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
897
898 /* enable 3wire clocks */
899 update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
900 ~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
901 PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
902 0);
903 update_reg(PS3_AUDIO_AO_3WMCTRL,
904 PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
905}
906
907static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
908{
909 int ret;
910 pr_debug("%s: start\n", __func__);
911 card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
912 card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
913 card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
914 card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
915 card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
916 memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
917
918 ret = snd_ps3_change_avsetting(card);
919
920 snd_ps3_audio_fixup(card);
921
922 /* to start to generate SPDIF signal, fill data */
923 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
924 snd_ps3_kick_dma(card);
925 pr_debug("%s: end\n", __func__);
926 return ret;
927}
928
929static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
930{
931 int i, ret;
932 u64 lpar_addr, lpar_size;
933
934 if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
935 return -ENODEV;
936 if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
937 return -ENODEV;
938
939 the_card.ps3_dev = dev;
940
941 ret = ps3_open_hv_device(dev);
942
943 if (ret)
944 return -ENXIO;
945
946 /* setup MMIO */
947 ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
948 if (ret) {
949 pr_info("%s: device map 2 failed %d\n", __func__, ret);
950 goto clean_open;
951 }
952 ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
953 PAGE_SHIFT);
954
955 ret = snd_ps3_map_mmio();
956 if (ret)
957 goto clean_dev_map;
958
959 /* setup DMA area */
960 ps3_dma_region_init(dev, dev->d_region,
961 PAGE_SHIFT, /* use system page size */
962 0, /* dma type; not used */
963 NULL,
964 _ALIGN_UP(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
965 dev->d_region->ioid = PS3_AUDIO_IOID;
966
967 ret = ps3_dma_region_create(dev->d_region);
968 if (ret) {
969 pr_info("%s: region_create\n", __func__);
970 goto clean_mmio;
971 }
972
973 snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
974
975 /* CONFIG_SND_PS3_DEFAULT_START_DELAY */
976 the_card.start_delay = snd_ps3_start_delay;
977
978 /* irq */
979 if (snd_ps3_allocate_irq()) {
980 ret = -ENXIO;
981 goto clean_dma_region;
982 }
983
984 /* create card instance */
985 ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
986 0, &the_card.card);
987 if (ret < 0)
988 goto clean_irq;
989
990 strcpy(the_card.card->driver, "PS3");
991 strcpy(the_card.card->shortname, "PS3");
992 strcpy(the_card.card->longname, "PS3 sound");
993
994 /* create control elements */
995 for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
996 ret = snd_ctl_add(the_card.card,
997 snd_ctl_new1(&spdif_ctls[i], &the_card));
998 if (ret < 0)
999 goto clean_card;
1000 }
1001
1002 /* create PCM devices instance */
1003 /* NOTE:this driver works assuming pcm:substream = 1:1 */
1004 ret = snd_pcm_new(the_card.card,
1005 "SPDIF",
1006 0, /* instance index, will be stored pcm.device*/
1007 1, /* output substream */
1008 0, /* input substream */
1009 &(the_card.pcm));
1010 if (ret)
1011 goto clean_card;
1012
1013 the_card.pcm->private_data = &the_card;
1014 strcpy(the_card.pcm->name, "SPDIF");
1015
1016 /* set pcm ops */
1017 snd_pcm_set_ops(the_card.pcm, SNDRV_PCM_STREAM_PLAYBACK,
1018 &snd_ps3_pcm_spdif_ops);
1019
1020 the_card.pcm->info_flags = SNDRV_PCM_INFO_NONINTERLEAVED;
1021 /* pre-alloc PCM DMA buffer*/
1022 ret = snd_pcm_lib_preallocate_pages_for_all(the_card.pcm,
1023 SNDRV_DMA_TYPE_DEV,
1024 &dev->core,
1025 SND_PS3_PCM_PREALLOC_SIZE,
1026 SND_PS3_PCM_PREALLOC_SIZE);
1027 if (ret < 0) {
1028 pr_info("%s: prealloc failed\n", __func__);
1029 goto clean_card;
1030 }
1031
1032 /*
1033 * allocate null buffer
1034 * its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
1035 * PAGE_SIZE is enogh
1036 */
1037 the_card.null_buffer_start_vaddr =
1038 dma_alloc_coherent(&the_card.ps3_dev->core,
1039 PAGE_SIZE,
1040 &the_card.null_buffer_start_dma_addr,
1041 GFP_KERNEL);
1042 if (!the_card.null_buffer_start_vaddr) {
1043 pr_info("%s: nullbuffer alloc failed\n", __func__);
1044 ret = -ENOMEM;
1045 goto clean_card;
1046 }
1047 pr_debug("%s: null vaddr=%p dma=%#llx\n", __func__,
1048 the_card.null_buffer_start_vaddr,
1049 the_card.null_buffer_start_dma_addr);
1050 /* set default sample rate/word width */
1051 snd_ps3_init_avsetting(&the_card);
1052
1053 /* register the card */
1054 ret = snd_card_register(the_card.card);
1055 if (ret < 0)
1056 goto clean_dma_map;
1057
1058 pr_info("%s started. start_delay=%dms\n",
1059 the_card.card->longname, the_card.start_delay);
1060 return 0;
1061
1062clean_dma_map:
1063 dma_free_coherent(&the_card.ps3_dev->core,
1064 PAGE_SIZE,
1065 the_card.null_buffer_start_vaddr,
1066 the_card.null_buffer_start_dma_addr);
1067clean_card:
1068 snd_card_free(the_card.card);
1069clean_irq:
1070 snd_ps3_free_irq();
1071clean_dma_region:
1072 ps3_dma_region_free(dev->d_region);
1073clean_mmio:
1074 snd_ps3_unmap_mmio();
1075clean_dev_map:
1076 lv1_gpu_device_unmap(2);
1077clean_open:
1078 ps3_close_hv_device(dev);
1079 /*
1080 * there is no destructor function to pcm.
1081 * midlayer automatically releases if the card removed
1082 */
1083 return ret;
1084}; /* snd_ps3_probe */
1085
1086/* called when module removal */
1087static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
1088{
1089 int ret;
1090 pr_info("%s:start id=%d\n", __func__, dev->match_id);
1091 if (dev->match_id != PS3_MATCH_ID_SOUND)
1092 return -ENXIO;
1093
1094 /*
1095 * ctl and preallocate buffer will be freed in
1096 * snd_card_free
1097 */
1098 ret = snd_card_free(the_card.card);
1099 if (ret)
1100 pr_info("%s: ctl freecard=%d\n", __func__, ret);
1101
1102 dma_free_coherent(&dev->core,
1103 PAGE_SIZE,
1104 the_card.null_buffer_start_vaddr,
1105 the_card.null_buffer_start_dma_addr);
1106
1107 ps3_dma_region_free(dev->d_region);
1108
1109 snd_ps3_free_irq();
1110 snd_ps3_unmap_mmio();
1111
1112 lv1_gpu_device_unmap(2);
1113 ps3_close_hv_device(dev);
1114 pr_info("%s:end id=%d\n", __func__, dev->match_id);
1115 return 0;
1116} /* snd_ps3_remove */
1117
1118static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
1119 .match_id = PS3_MATCH_ID_SOUND,
1120 .probe = snd_ps3_driver_probe,
1121 .remove = snd_ps3_driver_remove,
1122 .shutdown = snd_ps3_driver_remove,
1123 .core = {
1124 .name = SND_PS3_DRIVER_NAME,
1125 .owner = THIS_MODULE,
1126 },
1127};
1128
1129
1130/*
1131 * module/subsystem initialize/terminate
1132 */
1133static int __init snd_ps3_init(void)
1134{
1135 int ret;
1136
1137 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
1138 return -ENXIO;
1139
1140 memset(&the_card, 0, sizeof(the_card));
1141 spin_lock_init(&the_card.dma_lock);
1142
1143 /* register systembus DRIVER, this calls our probe() func */
1144 ret = ps3_system_bus_driver_register(&snd_ps3_bus_driver_info);
1145
1146 return ret;
1147}
1148module_init(snd_ps3_init);
1149
1150static void __exit snd_ps3_exit(void)
1151{
1152 ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
1153}
1154module_exit(snd_ps3_exit);
1155
1156MODULE_LICENSE("GPL v2");
1157MODULE_DESCRIPTION("PS3 sound driver");
1158MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1159MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);