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