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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Audio support for PS34 * Copyright (C) 2007 Sony Computer Entertainment Inc.5 * All rights reserved.6 * Copyright 2006, 2007 Sony Corporation7 */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 * global37 */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 access56 */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 defs78 */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_SIZE105};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 interrupts135 */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 done154 */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 next159 * 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 stop171 */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 spinlock199 */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 buffer215 */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 else252 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 else267 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 else284 write_reg(PS3_AUDIO_KICK(dma_ch),285 PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch286 - 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 handler299 */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 it317 */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. After345 * filling dummy data, serial automatically start to346 * consume them and then will generate normal buffer347 * empty interrupts.348 * If both buffer underflow and buffer empty are occurred,349 * it is better to do nomal data transfer than empty one350 */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/off364 * mute_on : 0 output enabled365 * 1 mute366 */367static int snd_ps3_mute(int mute_on)368{369 return ps3av_audio_mute(mute_on);370}371 372/*373 * av setting374 * 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 substream437 */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 } else497 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 else503 ps3av_audio_mute_analog(0);504 505 return ret;506}507 508/*509 * PCM operators510 */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 silence574 */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 pointer656 */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 controls678 */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 following851 * so, init them here once852 */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 buffer994 * its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2995 * PAGE_SIZE is enogh996 */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 removed1042 */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 in1053 * snd_card_free1054 */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/terminate1086 */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);1114