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Merge tag 'for-5.4/post-2019-09-24' of git://git.kernel.dk/linux-block
[linux-block.git] / sound / ppc / snd_ps3.c
CommitLineData
e26441b6 1// SPDX-License-Identifier: GPL-2.0-only
c454fd4e
MM		 2/*
3 * Audio support for PS3
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * All rights reserved.
6 * Copyright 2006, 2007 Sony Corporation
c454fd4e
MM		 7 */
8
cb6492e4
GU		 9#include <linux/dma-mapping.h>
10#include <linux/dmapool.h>
5a0e3ad6 11#include <linux/gfp.h>
c454fd4e 12#include <linux/init.h>
c454fd4e 13#include <linux/interrupt.h>
cb6492e4 14#include <linux/io.h>
da155d5b 15#include <linux/module.h>
cb6492e4
GU		 16
17#include <sound/asound.h>
18#include <sound/control.h>
c454fd4e
MM		 19#include <sound/core.h>
20#include <sound/initval.h>
c454fd4e 21#include <sound/memalloc.h>
cb6492e4 22#include <sound/pcm.h>
c454fd4e 23#include <sound/pcm_params.h>
cb6492e4 24
c454fd4e 25#include <asm/dma.h>
cb6492e4 26#include <asm/firmware.h>
c454fd4e
MM		 27#include <asm/lv1call.h>
28#include <asm/ps3.h>
29#include <asm/ps3av.h>
30
c454fd4e 31#include "snd_ps3.h"
cb6492e4 32#include "snd_ps3_reg.h"
c454fd4e
MM		 33
34
c454fd4e
MM		 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);
9380f2af 43MODULE_PARM_DESC(start_delay, "time to insert silent data in ms");
c454fd4e
MM		 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 */
3f76d984 79static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
c454fd4e
MM		 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
c454fd4e
MM		 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
112ac808 113 for (dma_ch = 0; dma_ch < 8; dma_ch++) {
c454fd4e
MM		 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 */
112ac808 189static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
c454fd4e
MM		 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 */
c454fd4e
MM		 224 unsigned long irqsave;
225 int silent = 0;
226
227 switch (filltype) {
228 case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
229 silent = 1;
230 /* intentionally fall thru */
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 /* intentionally fall thru */
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++) {
112ac808 247 for (stage = 0; stage < fill_stages; stage++) {
c454fd4e
MM		 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
cb6492e4
GU		 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.
25985edc 348 * If both buffer underflow and buffer empty are occurred,
cb6492e4
GU		 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
c454fd4e
MM		 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
cb6492e4
GU		 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
c454fd4e
MM		 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);
c454fd4e 515
c454fd4e
MM		 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
cb6492e4
GU		 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
c454fd4e
MM		 538static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
539 struct snd_pcm_hw_params *hw_params)
540{
541 size_t size;
542
543 /* alloc transport buffer */
544 size = params_buffer_bytes(hw_params);
545 snd_pcm_lib_malloc_pages(substream, size);
546 return 0;
547};
548
cb6492e4
GU		 549static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
550{
44cc4a01 551 return snd_pcm_lib_free_pages(substream);
cb6492e4
GU		 552};
553
c454fd4e
MM		 554static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
555 unsigned int delay_ms)
556{
557 int ret;
558 int rate ;
559
560 rate = substream->runtime->rate;
561 ret = snd_pcm_format_size(substream->runtime->format,
562 rate * delay_ms / 1000)
563 * substream->runtime->channels;
564
147fcf1c 565 pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
c454fd4e
MM		 566 __func__,
567 delay_ms,
568 rate,
569 snd_pcm_format_size(substream->runtime->format, rate),
570 rate * delay_ms / 1000,
571 ret);
572
573 return ret;
574};
575
576static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
577{
578 struct snd_pcm_runtime *runtime = substream->runtime;
579 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
580 unsigned long irqsave;
581
582 if (!snd_ps3_set_avsetting(substream)) {
583 /* some parameter changed */
584 write_reg(PS3_AUDIO_AX_IE,
585 PS3_AUDIO_AX_IE_ASOBEIE(0) |
586 PS3_AUDIO_AX_IE_ASOBUIE(0));
587 /*
588 * let SPDIF device re-lock with SPDIF signal,
589 * start with some silence
590 */
591 card->silent = snd_ps3_delay_to_bytes(substream,
592 card->start_delay) /
593 (PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
594 }
595
596 /* restart ring buffer pointer */
597 spin_lock_irqsave(&card->dma_lock, irqsave);
598 {
599 card->dma_buffer_size = runtime->dma_bytes;
600
601 card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
602 card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
603 card->dma_start_vaddr[SND_PS3_CH_L] =
604 runtime->dma_area;
605 card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
606
cb6492e4
GU		 607 card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
608 card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
609 card->dma_start_vaddr[SND_PS3_CH_R] =
610 runtime->dma_area + (runtime->dma_bytes / 2);
611 card->dma_start_bus_addr[SND_PS3_CH_R] =
612 runtime->dma_addr + (runtime->dma_bytes / 2);
c454fd4e 613
cb6492e4
GU		 614 pr_debug("%s: vaddr=%p bus=%#llx\n", __func__,
615 card->dma_start_vaddr[SND_PS3_CH_L],
616 card->dma_start_bus_addr[SND_PS3_CH_L]);
c454fd4e 617
cb6492e4
GU		 618 }
619 spin_unlock_irqrestore(&card->dma_lock, irqsave);
c454fd4e 620
cb6492e4
GU		 621 /* ensure the hardware sees the change */
622 mb();
623
624 return 0;
625};
626
627static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
628 int cmd)
c454fd4e
MM		 629{
630 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
c454fd4e 631
cb6492e4
GU		 632 switch (cmd) {
633 case SNDRV_PCM_TRIGGER_START:
634 /* clear outstanding interrupts */
635 update_reg(PS3_AUDIO_AX_IS, 0);
c454fd4e 636
cb6492e4
GU		 637 spin_lock(&card->dma_lock);
638 {
639 card->running = 1;
640 }
641 spin_unlock(&card->dma_lock);
c454fd4e 642
cb6492e4
GU		 643 snd_ps3_program_dma(card,
644 SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
645 snd_ps3_kick_dma(card);
646 while (read_reg(PS3_AUDIO_KICK(7)) &
647 PS3_AUDIO_KICK_STATUS_MASK) {
648 udelay(1);
649 }
650 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
651 snd_ps3_kick_dma(card);
c454fd4e 652 break;
c454fd4e 653
cb6492e4
GU		 654 case SNDRV_PCM_TRIGGER_STOP:
655 spin_lock(&card->dma_lock);
656 {
657 card->running = 0;
658 }
659 spin_unlock(&card->dma_lock);
660 snd_ps3_wait_for_dma_stop(card);
c454fd4e
MM		 661 break;
662 default:
cb6492e4
GU		 663 break;
664
c454fd4e
MM		 665 }
666
73948ca0 667 return 0;
cb6492e4 668};
c454fd4e 669
cb6492e4
GU		 670/*
671 * report current pointer
672 */
673static snd_pcm_uframes_t snd_ps3_pcm_pointer(
674 struct snd_pcm_substream *substream)
675{
676 struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
677 size_t bytes;
678 snd_pcm_uframes_t ret;
c454fd4e 679
cb6492e4
GU		 680 spin_lock(&card->dma_lock);
681 {
682 bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
683 card->dma_start_vaddr[SND_PS3_CH_L]);
684 }
685 spin_unlock(&card->dma_lock);
1ee2a322 686
cb6492e4 687 ret = bytes_to_frames(substream->runtime, bytes * 2);
1ee2a322
TI		 688
689 return ret;
cb6492e4 690};
1ee2a322
TI		 691
692/*
693 * SPDIF status bits controls
694 */
695static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
696 struct snd_ctl_elem_info *uinfo)
697{
698 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
699 uinfo->count = 1;
700 return 0;
701}
702
703/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
704static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
705 struct snd_ctl_elem_value *ucontrol)
706{
707 memset(ucontrol->value.iec958.status, 0xff, 8);
708 return 0;
709}
710
711static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
712 struct snd_ctl_elem_value *ucontrol)
713{
714 return 0;
715}
716
717static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
718 struct snd_ctl_elem_value *ucontrol)
719{
720 memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
721 return 0;
722}
723
724static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
725 struct snd_ctl_elem_value *ucontrol)
726{
727 if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
728 memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
c454fd4e 729 return 1;
1ee2a322
TI		 730 }
731 return 0;
c454fd4e
MM		 732}
733
1ee2a322
TI		 734static struct snd_kcontrol_new spdif_ctls[] = {
735 {
736 .access = SNDRV_CTL_ELEM_ACCESS_READ,
737 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
112ac808 738 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1ee2a322
TI		 739 .info = snd_ps3_spdif_mask_info,
740 .get = snd_ps3_spdif_cmask_get,
741 },
742 {
743 .access = SNDRV_CTL_ELEM_ACCESS_READ,
744 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
112ac808 745 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1ee2a322
TI		 746 .info = snd_ps3_spdif_mask_info,
747 .get = snd_ps3_spdif_pmask_get,
748 },
749 {
750 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
112ac808 751 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1ee2a322
TI		 752 .info = snd_ps3_spdif_mask_info,
753 .get = snd_ps3_spdif_default_get,
754 .put = snd_ps3_spdif_default_put,
755 },
756};
c454fd4e 757
3179a3ea 758static const struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
cb6492e4
GU		 759 .open = snd_ps3_pcm_open,
760 .close = snd_ps3_pcm_close,
761 .ioctl = snd_pcm_lib_ioctl,
762 .hw_params = snd_ps3_pcm_hw_params,
763 .hw_free = snd_ps3_pcm_hw_free,
764 .prepare = snd_ps3_pcm_prepare,
765 .trigger = snd_ps3_pcm_trigger,
766 .pointer = snd_ps3_pcm_pointer,
767};
768
c454fd4e 769
5cc3203f 770static int snd_ps3_map_mmio(void)
c454fd4e
MM		 771{
772 the_card.mapped_mmio_vaddr =
773 ioremap(the_card.ps3_dev->m_region->bus_addr,
774 the_card.ps3_dev->m_region->len);
775
776 if (!the_card.mapped_mmio_vaddr) {
777 pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
778 __func__, the_card.ps3_dev->m_region->lpar_addr,
779 the_card.ps3_dev->m_region->len);
780 return -ENXIO;
781 }
782
783 return 0;
784};
785
786static void snd_ps3_unmap_mmio(void)
787{
788 iounmap(the_card.mapped_mmio_vaddr);
789 the_card.mapped_mmio_vaddr = NULL;
790}
791
5cc3203f 792static int snd_ps3_allocate_irq(void)
c454fd4e
MM		 793{
794 int ret;
795 u64 lpar_addr, lpar_size;
796 u64 __iomem *mapped;
797
798 /* FIXME: move this to device_init (H/W probe) */
799
800 /* get irq outlet */
801 ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
802 if (ret) {
803 pr_info("%s: device map 1 failed %d\n", __func__,
804 ret);
805 return -ENXIO;
806 }
807
808 mapped = ioremap(lpar_addr, lpar_size);
809 if (!mapped) {
810 pr_info("%s: ioremap 1 failed \n", __func__);
811 return -ENXIO;
812 }
813
814 the_card.audio_irq_outlet = in_be64(mapped);
815
816 iounmap(mapped);
817 ret = lv1_gpu_device_unmap(1);
818 if (ret)
819 pr_info("%s: unmap 1 failed\n", __func__);
820
821 /* irq */
822 ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
823 the_card.audio_irq_outlet,
824 &the_card.irq_no);
825 if (ret) {
826 pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
827 return ret;
828 }
829
88e24c3a 830 ret = request_irq(the_card.irq_no, snd_ps3_interrupt, 0,
c454fd4e
MM		 831 SND_PS3_DRIVER_NAME, &the_card);
832 if (ret) {
833 pr_info("%s: request_irq failed (%d)\n", __func__, ret);
834 goto cleanup_irq;
835 }
836
837 return 0;
838
839 cleanup_irq:
840 ps3_irq_plug_destroy(the_card.irq_no);
841 return ret;
842};
843
844static void snd_ps3_free_irq(void)
845{
846 free_irq(the_card.irq_no, &the_card);
847 ps3_irq_plug_destroy(the_card.irq_no);
848}
849
5cc3203f 850static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
c454fd4e
MM		 851{
852 uint64_t val;
853 int ret;
854
855 val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
856 (0x03UL << 24) |
857 (0x0fUL << 12) |
858 (PS3_AUDIO_IOID);
859
9fce85f7 860 ret = lv1_gpu_attribute(0x100, 0x007, val);
c454fd4e
MM		 861 if (ret)
862 pr_info("%s: gpu_attribute failed %d\n", __func__,
863 ret);
864}
865
5cc3203f 866static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
cb6492e4
GU		 867{
868 /*
4091fb95 869 * avsetting driver seems to never change the following
cb6492e4
GU		 870 * so, init them here once
871 */
872
873 /* no dma interrupt needed */
874 write_reg(PS3_AUDIO_INTR_EN_0, 0);
875
876 /* use every 4 buffer empty interrupt */
877 update_mask_reg(PS3_AUDIO_AX_IC,
878 PS3_AUDIO_AX_IC_AASOIMD_MASK,
879 PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
880
881 /* enable 3wire clocks */
882 update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
883 ~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
884 PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
885 0);
886 update_reg(PS3_AUDIO_AO_3WMCTRL,
887 PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
888}
889
5cc3203f 890static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
cb6492e4
GU		 891{
892 int ret;
893 pr_debug("%s: start\n", __func__);
894 card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
895 card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
896 card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
897 card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
898 card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
899 memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
900
901 ret = snd_ps3_change_avsetting(card);
902
903 snd_ps3_audio_fixup(card);
904
905 /* to start to generate SPDIF signal, fill data */
906 snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
907 snd_ps3_kick_dma(card);
908 pr_debug("%s: end\n", __func__);
909 return ret;
910}
911
5cc3203f 912static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
c454fd4e 913{
1ee2a322 914 int i, ret;
c454fd4e 915 u64 lpar_addr, lpar_size;
48e91846 916 static u64 dummy_mask;
c454fd4e 917
025be74c
TI		 918 if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
919 return -ENODEV;
920 if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
921 return -ENODEV;
c454fd4e
MM		 922
923 the_card.ps3_dev = dev;
924
925 ret = ps3_open_hv_device(dev);
926
927 if (ret)
928 return -ENXIO;
929
930 /* setup MMIO */
931 ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
932 if (ret) {
933 pr_info("%s: device map 2 failed %d\n", __func__, ret);
934 goto clean_open;
935 }
936 ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
937 PAGE_SHIFT);
938
939 ret = snd_ps3_map_mmio();
940 if (ret)
941 goto clean_dev_map;
942
943 /* setup DMA area */
944 ps3_dma_region_init(dev, dev->d_region,
945 PAGE_SHIFT, /* use system page size */
946 0, /* dma type; not used */
947 NULL,
948 _ALIGN_UP(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
949 dev->d_region->ioid = PS3_AUDIO_IOID;
950
951 ret = ps3_dma_region_create(dev->d_region);
952 if (ret) {
953 pr_info("%s: region_create\n", __func__);
954 goto clean_mmio;
955 }
956
48e91846
GL		 957 dummy_mask = DMA_BIT_MASK(32);
958 dev->core.dma_mask = &dummy_mask;
959 dma_set_coherent_mask(&dev->core, dummy_mask);
960
c454fd4e
MM		 961 snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
962
963 /* CONFIG_SND_PS3_DEFAULT_START_DELAY */
964 the_card.start_delay = snd_ps3_start_delay;
965
966 /* irq */
967 if (snd_ps3_allocate_irq()) {
968 ret = -ENXIO;
969 goto clean_dma_region;
970 }
971
972 /* create card instance */
10768797
TI		 973 ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
974 0, &the_card.card);
bd7dd77c 975 if (ret < 0)
c454fd4e 976 goto clean_irq;
c454fd4e
MM		 977
978 strcpy(the_card.card->driver, "PS3");
979 strcpy(the_card.card->shortname, "PS3");
980 strcpy(the_card.card->longname, "PS3 sound");
1ee2a322
TI		 981
982 /* create control elements */
983 for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
984 ret = snd_ctl_add(the_card.card,
985 snd_ctl_new1(&spdif_ctls[i], &the_card));
986 if (ret < 0)
987 goto clean_card;
988 }
989
c454fd4e
MM		 990 /* create PCM devices instance */
991 /* NOTE:this driver works assuming pcm:substream = 1:1 */
992 ret = snd_pcm_new(the_card.card,
993 "SPDIF",
994 0, /* instance index, will be stored pcm.device*/
995 1, /* output substream */
996 0, /* input substream */
997 &(the_card.pcm));
998 if (ret)
999 goto clean_card;
1000
1001 the_card.pcm->private_data = &the_card;
1002 strcpy(the_card.pcm->name, "SPDIF");
1003
1004 /* set pcm ops */
1005 snd_pcm_set_ops(the_card.pcm, SNDRV_PCM_STREAM_PLAYBACK,
1006 &snd_ps3_pcm_spdif_ops);
1007
1008 the_card.pcm->info_flags = SNDRV_PCM_INFO_NONINTERLEAVED;
1009 /* pre-alloc PCM DMA buffer*/
c0256722 1010 snd_pcm_lib_preallocate_pages_for_all(the_card.pcm,
c454fd4e
MM		 1011 SNDRV_DMA_TYPE_DEV,
1012 &dev->core,
1013 SND_PS3_PCM_PREALLOC_SIZE,
1014 SND_PS3_PCM_PREALLOC_SIZE);
c454fd4e
MM		 1015
1016 /*
1017 * allocate null buffer
1018 * its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
1019 * PAGE_SIZE is enogh
1020 */
112ac808
GU		 1021 the_card.null_buffer_start_vaddr =
1022 dma_alloc_coherent(&the_card.ps3_dev->core,
1023 PAGE_SIZE,
1024 &the_card.null_buffer_start_dma_addr,
1025 GFP_KERNEL);
1026 if (!the_card.null_buffer_start_vaddr) {
c454fd4e 1027 pr_info("%s: nullbuffer alloc failed\n", __func__);
c86b9362 1028 ret = -ENOMEM;
a14e7eb5 1029 goto clean_card;
c454fd4e 1030 }
26db11af 1031 pr_debug("%s: null vaddr=%p dma=%#llx\n", __func__,
c454fd4e
MM		 1032 the_card.null_buffer_start_vaddr,
1033 the_card.null_buffer_start_dma_addr);
1034 /* set default sample rate/word width */
1035 snd_ps3_init_avsetting(&the_card);
1036
1037 /* register the card */
1038 ret = snd_card_register(the_card.card);
1039 if (ret < 0)
1040 goto clean_dma_map;
1041
1042 pr_info("%s started. start_delay=%dms\n",
1043 the_card.card->longname, the_card.start_delay);
1044 return 0;
1045
1046clean_dma_map:
1047 dma_free_coherent(&the_card.ps3_dev->core,
1048 PAGE_SIZE,
1049 the_card.null_buffer_start_vaddr,
1050 the_card.null_buffer_start_dma_addr);
c454fd4e
MM		 1051clean_card:
1052 snd_card_free(the_card.card);
1053clean_irq:
1054 snd_ps3_free_irq();
1055clean_dma_region:
1056 ps3_dma_region_free(dev->d_region);
1057clean_mmio:
1058 snd_ps3_unmap_mmio();
1059clean_dev_map:
1060 lv1_gpu_device_unmap(2);
1061clean_open:
1062 ps3_close_hv_device(dev);
1063 /*
1064 * there is no destructor function to pcm.
1065 * midlayer automatically releases if the card removed
1066 */
1067 return ret;
1068}; /* snd_ps3_probe */
1069
1070/* called when module removal */
1071static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
1072{
1073 int ret;
1074 pr_info("%s:start id=%d\n", __func__, dev->match_id);
1075 if (dev->match_id != PS3_MATCH_ID_SOUND)
1076 return -ENXIO;
1077
1078 /*
1079 * ctl and preallocate buffer will be freed in
1080 * snd_card_free
1081 */
1082 ret = snd_card_free(the_card.card);
1083 if (ret)
1084 pr_info("%s: ctl freecard=%d\n", __func__, ret);
1085
1086 dma_free_coherent(&dev->core,
1087 PAGE_SIZE,
1088 the_card.null_buffer_start_vaddr,
1089 the_card.null_buffer_start_dma_addr);
1090
1091 ps3_dma_region_free(dev->d_region);
1092
1093 snd_ps3_free_irq();
1094 snd_ps3_unmap_mmio();
1095
1096 lv1_gpu_device_unmap(2);
1097 ps3_close_hv_device(dev);
1098 pr_info("%s:end id=%d\n", __func__, dev->match_id);
1099 return 0;
1100} /* snd_ps3_remove */
1101
1102static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
1103 .match_id = PS3_MATCH_ID_SOUND,
1104 .probe = snd_ps3_driver_probe,
1105 .remove = snd_ps3_driver_remove,
1106 .shutdown = snd_ps3_driver_remove,
1107 .core = {
1108 .name = SND_PS3_DRIVER_NAME,
1109 .owner = THIS_MODULE,
1110 },
1111};
1112
1113
c454fd4e
MM		 1114/*
1115 * module/subsystem initialize/terminate
1116 */
1117static int __init snd_ps3_init(void)
1118{
1119 int ret;
1120
1121 if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
1122 return -ENXIO;
1123
1124 memset(&the_card, 0, sizeof(the_card));
1125 spin_lock_init(&the_card.dma_lock);
1126
1127 /* register systembus DRIVER, this calls our probe() func */
1128 ret = ps3_system_bus_driver_register(&snd_ps3_bus_driver_info);
1129
1130 return ret;
1131}
cb6492e4 1132module_init(snd_ps3_init);
c454fd4e
MM		 1133
1134static void __exit snd_ps3_exit(void)
1135{
1136 ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
1137}
cb6492e4 1138module_exit(snd_ps3_exit);
c454fd4e 1139
cb6492e4
GU		 1140MODULE_LICENSE("GPL v2");
1141MODULE_DESCRIPTION("PS3 sound driver");
1142MODULE_AUTHOR("Sony Computer Entertainment Inc.");
c454fd4e 1143MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);
Linux 6.x block layer and io_uring tree(s)