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c454fd4e MM |
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 | ||
cb6492e4 GU |
21 | #include <linux/dma-mapping.h> |
22 | #include <linux/dmapool.h> | |
c454fd4e | 23 | #include <linux/init.h> |
c454fd4e | 24 | #include <linux/interrupt.h> |
cb6492e4 GU |
25 | #include <linux/io.h> |
26 | #include <linux/slab.h> | |
27 | ||
28 | #include <sound/asound.h> | |
29 | #include <sound/control.h> | |
c454fd4e MM |
30 | #include <sound/core.h> |
31 | #include <sound/initval.h> | |
c454fd4e | 32 | #include <sound/memalloc.h> |
cb6492e4 | 33 | #include <sound/pcm.h> |
c454fd4e | 34 | #include <sound/pcm_params.h> |
cb6492e4 | 35 | |
c454fd4e | 36 | #include <asm/dma.h> |
cb6492e4 | 37 | #include <asm/firmware.h> |
c454fd4e MM |
38 | #include <asm/lv1call.h> |
39 | #include <asm/ps3.h> | |
40 | #include <asm/ps3av.h> | |
41 | ||
c454fd4e | 42 | #include "snd_ps3.h" |
cb6492e4 | 43 | #include "snd_ps3_reg.h" |
c454fd4e MM |
44 | |
45 | ||
c454fd4e MM |
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 | */ | |
3f76d984 | 90 | static const struct snd_pcm_hardware snd_ps3_pcm_hw = { |
c454fd4e MM |
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 | ||
c454fd4e MM |
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 | ||
112ac808 | 124 | for (dma_ch = 0; dma_ch < 8; dma_ch++) { |
c454fd4e MM |
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 | */ | |
112ac808 | 200 | static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch) |
c454fd4e MM |
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]; | |
112ac808 | 260 | for (stage = 0; stage < fill_stages; stage++) { |
c454fd4e MM |
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 | ||
cb6492e4 GU |
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 | ||
c454fd4e MM |
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 | ||
cb6492e4 GU |
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 | ||
c454fd4e MM |
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 | ||
cb6492e4 GU |
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 | ||
c454fd4e MM |
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 | ||
cb6492e4 GU |
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 | ||
c454fd4e MM |
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 | ||
cb6492e4 GU |
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); | |
c454fd4e | 630 | |
cb6492e4 GU |
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]); | |
c454fd4e | 634 | |
cb6492e4 GU |
635 | } |
636 | spin_unlock_irqrestore(&card->dma_lock, irqsave); | |
c454fd4e | 637 | |
cb6492e4 GU |
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) | |
c454fd4e MM |
646 | { |
647 | struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream); | |
cb6492e4 | 648 | int ret = 0; |
c454fd4e | 649 | |
cb6492e4 GU |
650 | switch (cmd) { |
651 | case SNDRV_PCM_TRIGGER_START: | |
652 | /* clear outstanding interrupts */ | |
653 | update_reg(PS3_AUDIO_AX_IS, 0); | |
c454fd4e | 654 | |
cb6492e4 GU |
655 | spin_lock(&card->dma_lock); |
656 | { | |
657 | card->running = 1; | |
658 | } | |
659 | spin_unlock(&card->dma_lock); | |
c454fd4e | 660 | |
cb6492e4 GU |
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); | |
c454fd4e | 670 | break; |
c454fd4e | 671 | |
cb6492e4 GU |
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); | |
c454fd4e MM |
679 | break; |
680 | default: | |
cb6492e4 GU |
681 | break; |
682 | ||
c454fd4e MM |
683 | } |
684 | ||
cb6492e4 GU |
685 | return ret; |
686 | }; | |
c454fd4e | 687 | |
cb6492e4 GU |
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; | |
c454fd4e | 697 | |
cb6492e4 GU |
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); | |
1ee2a322 | 704 | |
cb6492e4 | 705 | ret = bytes_to_frames(substream->runtime, bytes * 2); |
1ee2a322 TI |
706 | |
707 | return ret; | |
cb6492e4 | 708 | }; |
1ee2a322 TI |
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); | |
c454fd4e | 747 | return 1; |
1ee2a322 TI |
748 | } |
749 | return 0; | |
c454fd4e MM |
750 | } |
751 | ||
1ee2a322 TI |
752 | static struct snd_kcontrol_new spdif_ctls[] = { |
753 | { | |
754 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
755 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
112ac808 | 756 | .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK), |
1ee2a322 TI |
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, | |
112ac808 | 763 | .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK), |
1ee2a322 TI |
764 | .info = snd_ps3_spdif_mask_info, |
765 | .get = snd_ps3_spdif_pmask_get, | |
766 | }, | |
767 | { | |
768 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
112ac808 | 769 | .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), |
1ee2a322 TI |
770 | .info = snd_ps3_spdif_mask_info, |
771 | .get = snd_ps3_spdif_default_get, | |
772 | .put = snd_ps3_spdif_default_put, | |
773 | }, | |
774 | }; | |
c454fd4e | 775 | |
cb6492e4 GU |
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 | ||
c454fd4e | 787 | |
2233123f | 788 | static int __devinit snd_ps3_map_mmio(void) |
c454fd4e MM |
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 | ||
2233123f | 810 | static int __devinit snd_ps3_allocate_irq(void) |
c454fd4e MM |
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 | ||
2233123f | 868 | static void __devinit snd_ps3_audio_set_base_addr(uint64_t ioaddr_start) |
c454fd4e MM |
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 | ||
2233123f | 884 | static void __devinit snd_ps3_audio_fixup(struct snd_ps3_card_info *card) |
cb6492e4 GU |
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 | ||
2233123f | 908 | static int __devinit snd_ps3_init_avsetting(struct snd_ps3_card_info *card) |
cb6492e4 GU |
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 | ||
2233123f | 930 | static int __devinit snd_ps3_driver_probe(struct ps3_system_bus_device *dev) |
c454fd4e | 931 | { |
1ee2a322 | 932 | int i, ret; |
c454fd4e MM |
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 */ | |
bd7dd77c TI |
984 | ret = snd_card_create(index, id, THIS_MODULE, 0, &the_card.card); |
985 | if (ret < 0) | |
c454fd4e | 986 | goto clean_irq; |
c454fd4e MM |
987 | |
988 | strcpy(the_card.card->driver, "PS3"); | |
989 | strcpy(the_card.card->shortname, "PS3"); | |
990 | strcpy(the_card.card->longname, "PS3 sound"); | |
1ee2a322 TI |
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 | ||
c454fd4e MM |
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 | */ | |
112ac808 GU |
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) { | |
c454fd4e MM |
1041 | pr_info("%s: nullbuffer alloc failed\n", __func__); |
1042 | goto clean_preallocate; | |
1043 | } | |
26db11af | 1044 | pr_debug("%s: null vaddr=%p dma=%#llx\n", __func__, |
c454fd4e MM |
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 */ | |
f78dfac9 | 1051 | snd_card_set_dev(the_card.card, &dev->core); |
c454fd4e MM |
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 | ||
c454fd4e MM |
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 | } | |
cb6492e4 | 1148 | module_init(snd_ps3_init); |
c454fd4e MM |
1149 | |
1150 | static void __exit snd_ps3_exit(void) | |
1151 | { | |
1152 | ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info); | |
1153 | } | |
cb6492e4 | 1154 | module_exit(snd_ps3_exit); |
c454fd4e | 1155 | |
cb6492e4 GU |
1156 | MODULE_LICENSE("GPL v2"); |
1157 | MODULE_DESCRIPTION("PS3 sound driver"); | |
1158 | MODULE_AUTHOR("Sony Computer Entertainment Inc."); | |
c454fd4e | 1159 | MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND); |