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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/init.h> |
24 | #include <linux/interrupt.h> |
25 | #include <linux/io.h> |
26 | #include <linux/slab.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 | */ |
49 | static struct snd_ps3_card_info the_card; |
50 | |
51 | static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY; |
52 | |
53 | module_param_named(start_delay, snd_ps3_start_delay, uint, 0644); |
54 | MODULE_PARM_DESC(start_delay, "time to insert silent data in milisec"); |
55 | |
56 | static int index = SNDRV_DEFAULT_IDX1; |
57 | static char *id = SNDRV_DEFAULT_STR1; |
58 | |
59 | module_param(index, int, 0444); |
60 | MODULE_PARM_DESC(index, "Index value for PS3 soundchip."); |
61 | module_param(id, charp, 0444); |
62 | MODULE_PARM_DESC(id, "ID string for PS3 soundchip."); |
63 | |
64 | |
65 | /* |
66 | * PS3 audio register access |
67 | */ |
68 | static inline u32 read_reg(unsigned int reg) |
69 | { |
70 | return in_be32(the_card.mapped_mmio_vaddr + reg); |
71 | } |
72 | static inline void write_reg(unsigned int reg, u32 val) |
73 | { |
74 | out_be32(the_card.mapped_mmio_vaddr + reg, val); |
75 | } |
76 | static 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 | } |
81 | static 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 | */ |
90 | static 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 | |
118 | static 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 | */ |
160 | static 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 | |
189 | static 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 | */ |
200 | static 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 | */ |
211 | static 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 | */ |
227 | static 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 | */ |
313 | static 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 occured, |
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 | */ |
380 | static 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 | */ |
389 | static 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 | */ |
451 | static 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 | */ |
524 | static 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 | |
546 | static int snd_ps3_pcm_close(struct snd_pcm_substream *substream) |
547 | { |
548 | /* mute on */ |
549 | snd_ps3_mute(1); |
550 | return 0; |
551 | }; |
552 | |
553 | static 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 | |
564 | static 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 | |
571 | static 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(KERN_ERR "%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 | |
593 | static 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 | |
644 | static 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 | */ |
691 | static 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 | */ |
713 | static 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 */ |
722 | static 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 | |
729 | static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol, |
730 | struct snd_ctl_elem_value *ucontrol) |
731 | { |
732 | return 0; |
733 | } |
734 | |
735 | static 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 | |
742 | static 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 | |
752 | static 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 | |
776 | static 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 | |
788 | static 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 | |
804 | static void snd_ps3_unmap_mmio(void) |
805 | { |
806 | iounmap(the_card.mapped_mmio_vaddr); |
807 | the_card.mapped_mmio_vaddr = NULL; |
808 | } |
809 | |
810 | static 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 | |
862 | static 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 | |
868 | static 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 | |
884 | static 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 | |
908 | static 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 | |
930 | static 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 | |
1060 | clean_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); |
1065 | clean_preallocate: |
1066 | snd_pcm_lib_preallocate_free_for_all(the_card.pcm); |
1067 | clean_card: |
1068 | snd_card_free(the_card.card); |
1069 | clean_irq: |
1070 | snd_ps3_free_irq(); |
1071 | clean_dma_region: |
1072 | ps3_dma_region_free(dev->d_region); |
1073 | clean_mmio: |
1074 | snd_ps3_unmap_mmio(); |
1075 | clean_dev_map: |
1076 | lv1_gpu_device_unmap(2); |
1077 | clean_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 */ |
1087 | static 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 | |
1118 | static 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 | */ |
1133 | static 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 | } |
1148 | module_init(snd_ps3_init); |
1149 | |
1150 | static void __exit snd_ps3_exit(void) |
1151 | { |
1152 | ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info); |
1153 | } |
1154 | module_exit(snd_ps3_exit); |
1155 | |
1156 | MODULE_LICENSE("GPL v2"); |
1157 | MODULE_DESCRIPTION("PS3 sound driver"); |
1158 | MODULE_AUTHOR("Sony Computer Entertainment Inc."); |
1159 | MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND); |
1160 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9