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1 | /* |
2 | * PMac DBDMA lowlevel functions |
3 | * |
4 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> |
5 | * code based on dmasound.c. |
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 as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | |
23 | #include <asm/io.h> |
24 | #include <asm/irq.h> |
25 | #include <linux/init.h> |
26 | #include <linux/delay.h> |
27 | #include <linux/slab.h> |
28 | #include <linux/interrupt.h> |
29 | #include <linux/pci.h> |
30 | #include <linux/dma-mapping.h> |
31 | #include <sound/core.h> |
32 | #include "pmac.h" |
33 | #include <sound/pcm_params.h> |
34 | #include <asm/pmac_feature.h> |
35 | #include <asm/pci-bridge.h> |
36 | |
37 | |
38 | /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ |
39 | static int awacs_freqs[8] = { |
40 | 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 |
41 | }; |
42 | /* fixed frequency table for tumbler */ |
43 | static int tumbler_freqs[1] = { |
44 | 44100 |
45 | }; |
46 | |
47 | |
48 | /* |
49 | * we will allocate a single 'emergency' dbdma cmd block to use if the |
50 | * tx status comes up "DEAD". This happens on some PowerComputing Pmac |
51 | * clones, either owing to a bug in dbdma or some interaction between |
52 | * IDE and sound. However, this measure would deal with DEAD status if |
53 | * it appeared elsewhere. |
54 | */ |
55 | static struct pmac_dbdma emergency_dbdma; |
56 | static int emergency_in_use; |
57 | |
58 | |
59 | /* |
60 | * allocate DBDMA command arrays |
61 | */ |
62 | static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size) |
63 | { |
64 | unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1); |
65 | |
66 | rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize, |
67 | &rec->dma_base, GFP_KERNEL); |
68 | if (rec->space == NULL) |
69 | return -ENOMEM; |
70 | rec->size = size; |
71 | memset(rec->space, 0, rsize); |
72 | rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); |
73 | rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space); |
74 | |
75 | return 0; |
76 | } |
77 | |
78 | static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec) |
79 | { |
80 | if (rec->space) { |
81 | unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1); |
82 | |
83 | dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base); |
84 | } |
85 | } |
86 | |
87 | |
88 | /* |
89 | * pcm stuff |
90 | */ |
91 | |
92 | /* |
93 | * look up frequency table |
94 | */ |
95 | |
96 | unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate) |
97 | { |
98 | int i, ok, found; |
99 | |
100 | ok = rec->cur_freqs; |
101 | if (rate > chip->freq_table[0]) |
102 | return 0; |
103 | found = 0; |
104 | for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { |
105 | if (! (ok & 1)) continue; |
106 | found = i; |
107 | if (rate >= chip->freq_table[i]) |
108 | break; |
109 | } |
110 | return found; |
111 | } |
112 | |
113 | /* |
114 | * check whether another stream is active |
115 | */ |
116 | static inline int another_stream(int stream) |
117 | { |
118 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
119 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
120 | } |
121 | |
122 | /* |
123 | * allocate buffers |
124 | */ |
125 | static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs, |
126 | struct snd_pcm_hw_params *hw_params) |
127 | { |
128 | return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); |
129 | } |
130 | |
131 | /* |
132 | * release buffers |
133 | */ |
134 | static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) |
135 | { |
136 | snd_pcm_lib_free_pages(subs); |
137 | return 0; |
138 | } |
139 | |
140 | /* |
141 | * get a stream of the opposite direction |
142 | */ |
143 | static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream) |
144 | { |
145 | switch (stream) { |
146 | case SNDRV_PCM_STREAM_PLAYBACK: |
147 | return &chip->playback; |
148 | case SNDRV_PCM_STREAM_CAPTURE: |
149 | return &chip->capture; |
150 | default: |
151 | snd_BUG(); |
152 | return NULL; |
153 | } |
154 | } |
155 | |
156 | /* |
157 | * wait while run status is on |
158 | */ |
159 | static inline void |
160 | snd_pmac_wait_ack(struct pmac_stream *rec) |
161 | { |
162 | int timeout = 50000; |
163 | while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) |
164 | udelay(1); |
165 | } |
166 | |
167 | /* |
168 | * set the format and rate to the chip. |
169 | * call the lowlevel function if defined (e.g. for AWACS). |
170 | */ |
171 | static void snd_pmac_pcm_set_format(struct snd_pmac *chip) |
172 | { |
173 | /* set up frequency and format */ |
174 | out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); |
175 | out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); |
176 | if (chip->set_format) |
177 | chip->set_format(chip); |
178 | } |
179 | |
180 | /* |
181 | * stop the DMA transfer |
182 | */ |
183 | static inline void snd_pmac_dma_stop(struct pmac_stream *rec) |
184 | { |
185 | out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); |
186 | snd_pmac_wait_ack(rec); |
187 | } |
188 | |
189 | /* |
190 | * set the command pointer address |
191 | */ |
192 | static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd) |
193 | { |
194 | out_le32(&rec->dma->cmdptr, cmd->addr); |
195 | } |
196 | |
197 | /* |
198 | * start the DMA |
199 | */ |
200 | static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status) |
201 | { |
202 | out_le32(&rec->dma->control, status | (status << 16)); |
203 | } |
204 | |
205 | |
206 | /* |
207 | * prepare playback/capture stream |
208 | */ |
209 | static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs) |
210 | { |
211 | int i; |
212 | volatile struct dbdma_cmd __iomem *cp; |
213 | struct snd_pcm_runtime *runtime = subs->runtime; |
214 | int rate_index; |
215 | long offset; |
216 | struct pmac_stream *astr; |
217 | |
218 | rec->dma_size = snd_pcm_lib_buffer_bytes(subs); |
219 | rec->period_size = snd_pcm_lib_period_bytes(subs); |
220 | rec->nperiods = rec->dma_size / rec->period_size; |
221 | rec->cur_period = 0; |
222 | rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); |
223 | |
224 | /* set up constraints */ |
225 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); |
226 | if (! astr) |
227 | return -EINVAL; |
228 | astr->cur_freqs = 1 << rate_index; |
229 | astr->cur_formats = 1 << runtime->format; |
230 | chip->rate_index = rate_index; |
231 | chip->format = runtime->format; |
232 | |
233 | /* We really want to execute a DMA stop command, after the AWACS |
234 | * is initialized. |
235 | * For reasons I don't understand, it stops the hissing noise |
236 | * common to many PowerBook G3 systems and random noise otherwise |
237 | * captured on iBook2's about every third time. -ReneR |
238 | */ |
239 | spin_lock_irq(&chip->reg_lock); |
240 | snd_pmac_dma_stop(rec); |
241 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); |
242 | snd_pmac_dma_set_command(rec, &chip->extra_dma); |
243 | snd_pmac_dma_run(rec, RUN); |
244 | spin_unlock_irq(&chip->reg_lock); |
245 | mdelay(5); |
246 | spin_lock_irq(&chip->reg_lock); |
247 | /* continuous DMA memory type doesn't provide the physical address, |
248 | * so we need to resolve the address here... |
249 | */ |
250 | offset = runtime->dma_addr; |
251 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { |
252 | st_le32(&cp->phy_addr, offset); |
253 | st_le16(&cp->req_count, rec->period_size); |
254 | /*st_le16(&cp->res_count, 0);*/ |
255 | st_le16(&cp->xfer_status, 0); |
256 | offset += rec->period_size; |
257 | } |
258 | /* make loop */ |
259 | st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); |
260 | st_le32(&cp->cmd_dep, rec->cmd.addr); |
261 | |
262 | snd_pmac_dma_stop(rec); |
263 | snd_pmac_dma_set_command(rec, &rec->cmd); |
264 | spin_unlock_irq(&chip->reg_lock); |
265 | |
266 | return 0; |
267 | } |
268 | |
269 | |
270 | /* |
271 | * PCM trigger/stop |
272 | */ |
273 | static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec, |
274 | struct snd_pcm_substream *subs, int cmd) |
275 | { |
276 | volatile struct dbdma_cmd __iomem *cp; |
277 | int i, command; |
278 | |
279 | switch (cmd) { |
280 | case SNDRV_PCM_TRIGGER_START: |
281 | case SNDRV_PCM_TRIGGER_RESUME: |
282 | if (rec->running) |
283 | return -EBUSY; |
284 | command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? |
285 | OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; |
286 | spin_lock(&chip->reg_lock); |
287 | snd_pmac_beep_stop(chip); |
288 | snd_pmac_pcm_set_format(chip); |
289 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) |
290 | out_le16(&cp->command, command); |
291 | snd_pmac_dma_set_command(rec, &rec->cmd); |
292 | (void)in_le32(&rec->dma->status); |
293 | snd_pmac_dma_run(rec, RUN|WAKE); |
294 | rec->running = 1; |
295 | spin_unlock(&chip->reg_lock); |
296 | break; |
297 | |
298 | case SNDRV_PCM_TRIGGER_STOP: |
299 | case SNDRV_PCM_TRIGGER_SUSPEND: |
300 | spin_lock(&chip->reg_lock); |
301 | rec->running = 0; |
302 | /*printk(KERN_DEBUG "stopped!!\n");*/ |
303 | snd_pmac_dma_stop(rec); |
304 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) |
305 | out_le16(&cp->command, DBDMA_STOP); |
306 | spin_unlock(&chip->reg_lock); |
307 | break; |
308 | |
309 | default: |
310 | return -EINVAL; |
311 | } |
312 | |
313 | return 0; |
314 | } |
315 | |
316 | /* |
317 | * return the current pointer |
318 | */ |
319 | inline |
320 | static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip, |
321 | struct pmac_stream *rec, |
322 | struct snd_pcm_substream *subs) |
323 | { |
324 | int count = 0; |
325 | |
326 | #if 1 /* hmm.. how can we get the current dma pointer?? */ |
327 | int stat; |
328 | volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; |
329 | stat = ld_le16(&cp->xfer_status); |
330 | if (stat & (ACTIVE|DEAD)) { |
331 | count = in_le16(&cp->res_count); |
332 | if (count) |
333 | count = rec->period_size - count; |
334 | } |
335 | #endif |
336 | count += rec->cur_period * rec->period_size; |
337 | /*printk(KERN_DEBUG "pointer=%d\n", count);*/ |
338 | return bytes_to_frames(subs->runtime, count); |
339 | } |
340 | |
341 | /* |
342 | * playback |
343 | */ |
344 | |
345 | static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs) |
346 | { |
347 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
348 | return snd_pmac_pcm_prepare(chip, &chip->playback, subs); |
349 | } |
350 | |
351 | static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs, |
352 | int cmd) |
353 | { |
354 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
355 | return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); |
356 | } |
357 | |
358 | static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs) |
359 | { |
360 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
361 | return snd_pmac_pcm_pointer(chip, &chip->playback, subs); |
362 | } |
363 | |
364 | |
365 | /* |
366 | * capture |
367 | */ |
368 | |
369 | static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs) |
370 | { |
371 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
372 | return snd_pmac_pcm_prepare(chip, &chip->capture, subs); |
373 | } |
374 | |
375 | static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs, |
376 | int cmd) |
377 | { |
378 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
379 | return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); |
380 | } |
381 | |
382 | static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs) |
383 | { |
384 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
385 | return snd_pmac_pcm_pointer(chip, &chip->capture, subs); |
386 | } |
387 | |
388 | |
389 | /* |
390 | * Handle DEAD DMA transfers: |
391 | * if the TX status comes up "DEAD" - reported on some Power Computing machines |
392 | * we need to re-start the dbdma - but from a different physical start address |
393 | * and with a different transfer length. It would get very messy to do this |
394 | * with the normal dbdma_cmd blocks - we would have to re-write the buffer start |
395 | * addresses each time. So, we will keep a single dbdma_cmd block which can be |
396 | * fiddled with. |
397 | * When DEAD status is first reported the content of the faulted dbdma block is |
398 | * copied into the emergency buffer and we note that the buffer is in use. |
399 | * we then bump the start physical address by the amount that was successfully |
400 | * output before it died. |
401 | * On any subsequent DEAD result we just do the bump-ups (we know that we are |
402 | * already using the emergency dbdma_cmd). |
403 | * CHECK: this just tries to "do it". It is possible that we should abandon |
404 | * xfers when the number of residual bytes gets below a certain value - I can |
405 | * see that this might cause a loop-forever if a too small transfer causes |
406 | * DEAD status. However this is a TODO for now - we'll see what gets reported. |
407 | * When we get a successful transfer result with the emergency buffer we just |
408 | * pretend that it completed using the original dmdma_cmd and carry on. The |
409 | * 'next_cmd' field will already point back to the original loop of blocks. |
410 | */ |
411 | static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec, |
412 | volatile struct dbdma_cmd __iomem *cp) |
413 | { |
414 | unsigned short req, res ; |
415 | unsigned int phy ; |
416 | |
417 | /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */ |
418 | |
419 | /* to clear DEAD status we must first clear RUN |
420 | set it to quiescent to be on the safe side */ |
421 | (void)in_le32(&rec->dma->status); |
422 | out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); |
423 | |
424 | if (!emergency_in_use) { /* new problem */ |
425 | memcpy((void *)emergency_dbdma.cmds, (void *)cp, |
426 | sizeof(struct dbdma_cmd)); |
427 | emergency_in_use = 1; |
428 | st_le16(&cp->xfer_status, 0); |
429 | st_le16(&cp->req_count, rec->period_size); |
430 | cp = emergency_dbdma.cmds; |
431 | } |
432 | |
433 | /* now bump the values to reflect the amount |
434 | we haven't yet shifted */ |
435 | req = ld_le16(&cp->req_count); |
436 | res = ld_le16(&cp->res_count); |
437 | phy = ld_le32(&cp->phy_addr); |
438 | phy += (req - res); |
439 | st_le16(&cp->req_count, res); |
440 | st_le16(&cp->res_count, 0); |
441 | st_le16(&cp->xfer_status, 0); |
442 | st_le32(&cp->phy_addr, phy); |
443 | |
444 | st_le32(&cp->cmd_dep, rec->cmd.addr |
445 | + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods)); |
446 | |
447 | st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS); |
448 | |
449 | /* point at our patched up command block */ |
450 | out_le32(&rec->dma->cmdptr, emergency_dbdma.addr); |
451 | |
452 | /* we must re-start the controller */ |
453 | (void)in_le32(&rec->dma->status); |
454 | /* should complete clearing the DEAD status */ |
455 | out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); |
456 | } |
457 | |
458 | /* |
459 | * update playback/capture pointer from interrupts |
460 | */ |
461 | static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec) |
462 | { |
463 | volatile struct dbdma_cmd __iomem *cp; |
464 | int c; |
465 | int stat; |
466 | |
467 | spin_lock(&chip->reg_lock); |
468 | if (rec->running) { |
469 | for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ |
470 | |
471 | if (emergency_in_use) /* already using DEAD xfer? */ |
472 | cp = emergency_dbdma.cmds; |
473 | else |
474 | cp = &rec->cmd.cmds[rec->cur_period]; |
475 | |
476 | stat = ld_le16(&cp->xfer_status); |
477 | |
478 | if (stat & DEAD) { |
479 | snd_pmac_pcm_dead_xfer(rec, cp); |
480 | break; /* this block is still going */ |
481 | } |
482 | |
483 | if (emergency_in_use) |
484 | emergency_in_use = 0 ; /* done that */ |
485 | |
486 | if (! (stat & ACTIVE)) |
487 | break; |
488 | |
489 | /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/ |
490 | st_le16(&cp->xfer_status, 0); |
491 | st_le16(&cp->req_count, rec->period_size); |
492 | /*st_le16(&cp->res_count, 0);*/ |
493 | rec->cur_period++; |
494 | if (rec->cur_period >= rec->nperiods) { |
495 | rec->cur_period = 0; |
496 | } |
497 | |
498 | spin_unlock(&chip->reg_lock); |
499 | snd_pcm_period_elapsed(rec->substream); |
500 | spin_lock(&chip->reg_lock); |
501 | } |
502 | } |
503 | spin_unlock(&chip->reg_lock); |
504 | } |
505 | |
506 | |
507 | /* |
508 | * hw info |
509 | */ |
510 | |
511 | static struct snd_pcm_hardware snd_pmac_playback = |
512 | { |
513 | .info = (SNDRV_PCM_INFO_INTERLEAVED | |
514 | SNDRV_PCM_INFO_MMAP | |
515 | SNDRV_PCM_INFO_MMAP_VALID | |
516 | SNDRV_PCM_INFO_RESUME), |
517 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, |
518 | .rates = SNDRV_PCM_RATE_8000_44100, |
519 | .rate_min = 7350, |
520 | .rate_max = 44100, |
521 | .channels_min = 2, |
522 | .channels_max = 2, |
523 | .buffer_bytes_max = 131072, |
524 | .period_bytes_min = 256, |
525 | .period_bytes_max = 16384, |
526 | .periods_min = 3, |
527 | .periods_max = PMAC_MAX_FRAGS, |
528 | }; |
529 | |
530 | static struct snd_pcm_hardware snd_pmac_capture = |
531 | { |
532 | .info = (SNDRV_PCM_INFO_INTERLEAVED | |
533 | SNDRV_PCM_INFO_MMAP | |
534 | SNDRV_PCM_INFO_MMAP_VALID | |
535 | SNDRV_PCM_INFO_RESUME), |
536 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, |
537 | .rates = SNDRV_PCM_RATE_8000_44100, |
538 | .rate_min = 7350, |
539 | .rate_max = 44100, |
540 | .channels_min = 2, |
541 | .channels_max = 2, |
542 | .buffer_bytes_max = 131072, |
543 | .period_bytes_min = 256, |
544 | .period_bytes_max = 16384, |
545 | .periods_min = 3, |
546 | .periods_max = PMAC_MAX_FRAGS, |
547 | }; |
548 | |
549 | |
550 | #if 0 // NYI |
551 | static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params, |
552 | struct snd_pcm_hw_rule *rule) |
553 | { |
554 | struct snd_pmac *chip = rule->private; |
555 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); |
556 | int i, freq_table[8], num_freqs; |
557 | |
558 | if (! rec) |
559 | return -EINVAL; |
560 | num_freqs = 0; |
561 | for (i = chip->num_freqs - 1; i >= 0; i--) { |
562 | if (rec->cur_freqs & (1 << i)) |
563 | freq_table[num_freqs++] = chip->freq_table[i]; |
564 | } |
565 | |
566 | return snd_interval_list(hw_param_interval(params, rule->var), |
567 | num_freqs, freq_table, 0); |
568 | } |
569 | |
570 | static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params, |
571 | struct snd_pcm_hw_rule *rule) |
572 | { |
573 | struct snd_pmac *chip = rule->private; |
574 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); |
575 | |
576 | if (! rec) |
577 | return -EINVAL; |
578 | return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), |
579 | rec->cur_formats); |
580 | } |
581 | #endif // NYI |
582 | |
583 | static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec, |
584 | struct snd_pcm_substream *subs) |
585 | { |
586 | struct snd_pcm_runtime *runtime = subs->runtime; |
587 | int i; |
588 | |
589 | /* look up frequency table and fill bit mask */ |
590 | runtime->hw.rates = 0; |
591 | for (i = 0; i < chip->num_freqs; i++) |
592 | if (chip->freqs_ok & (1 << i)) |
593 | runtime->hw.rates |= |
594 | snd_pcm_rate_to_rate_bit(chip->freq_table[i]); |
595 | |
596 | /* check for minimum and maximum rates */ |
597 | for (i = 0; i < chip->num_freqs; i++) { |
598 | if (chip->freqs_ok & (1 << i)) { |
599 | runtime->hw.rate_max = chip->freq_table[i]; |
600 | break; |
601 | } |
602 | } |
603 | for (i = chip->num_freqs - 1; i >= 0; i--) { |
604 | if (chip->freqs_ok & (1 << i)) { |
605 | runtime->hw.rate_min = chip->freq_table[i]; |
606 | break; |
607 | } |
608 | } |
609 | runtime->hw.formats = chip->formats_ok; |
610 | if (chip->can_capture) { |
611 | if (! chip->can_duplex) |
612 | runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; |
613 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; |
614 | } |
615 | runtime->private_data = rec; |
616 | rec->substream = subs; |
617 | |
618 | #if 0 /* FIXME: still under development.. */ |
619 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
620 | snd_pmac_hw_rule_rate, chip, rec->stream, -1); |
621 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, |
622 | snd_pmac_hw_rule_format, chip, rec->stream, -1); |
623 | #endif |
624 | |
625 | runtime->hw.periods_max = rec->cmd.size - 1; |
626 | |
627 | /* constraints to fix choppy sound */ |
628 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
629 | return 0; |
630 | } |
631 | |
632 | static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec, |
633 | struct snd_pcm_substream *subs) |
634 | { |
635 | struct pmac_stream *astr; |
636 | |
637 | snd_pmac_dma_stop(rec); |
638 | |
639 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); |
640 | if (! astr) |
641 | return -EINVAL; |
642 | |
643 | /* reset constraints */ |
644 | astr->cur_freqs = chip->freqs_ok; |
645 | astr->cur_formats = chip->formats_ok; |
646 | |
647 | return 0; |
648 | } |
649 | |
650 | static int snd_pmac_playback_open(struct snd_pcm_substream *subs) |
651 | { |
652 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
653 | |
654 | subs->runtime->hw = snd_pmac_playback; |
655 | return snd_pmac_pcm_open(chip, &chip->playback, subs); |
656 | } |
657 | |
658 | static int snd_pmac_capture_open(struct snd_pcm_substream *subs) |
659 | { |
660 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
661 | |
662 | subs->runtime->hw = snd_pmac_capture; |
663 | return snd_pmac_pcm_open(chip, &chip->capture, subs); |
664 | } |
665 | |
666 | static int snd_pmac_playback_close(struct snd_pcm_substream *subs) |
667 | { |
668 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
669 | |
670 | return snd_pmac_pcm_close(chip, &chip->playback, subs); |
671 | } |
672 | |
673 | static int snd_pmac_capture_close(struct snd_pcm_substream *subs) |
674 | { |
675 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
676 | |
677 | return snd_pmac_pcm_close(chip, &chip->capture, subs); |
678 | } |
679 | |
680 | /* |
681 | */ |
682 | |
683 | static struct snd_pcm_ops snd_pmac_playback_ops = { |
684 | .open = snd_pmac_playback_open, |
685 | .close = snd_pmac_playback_close, |
686 | .ioctl = snd_pcm_lib_ioctl, |
687 | .hw_params = snd_pmac_pcm_hw_params, |
688 | .hw_free = snd_pmac_pcm_hw_free, |
689 | .prepare = snd_pmac_playback_prepare, |
690 | .trigger = snd_pmac_playback_trigger, |
691 | .pointer = snd_pmac_playback_pointer, |
692 | }; |
693 | |
694 | static struct snd_pcm_ops snd_pmac_capture_ops = { |
695 | .open = snd_pmac_capture_open, |
696 | .close = snd_pmac_capture_close, |
697 | .ioctl = snd_pcm_lib_ioctl, |
698 | .hw_params = snd_pmac_pcm_hw_params, |
699 | .hw_free = snd_pmac_pcm_hw_free, |
700 | .prepare = snd_pmac_capture_prepare, |
701 | .trigger = snd_pmac_capture_trigger, |
702 | .pointer = snd_pmac_capture_pointer, |
703 | }; |
704 | |
705 | int __devinit snd_pmac_pcm_new(struct snd_pmac *chip) |
706 | { |
707 | struct snd_pcm *pcm; |
708 | int err; |
709 | int num_captures = 1; |
710 | |
711 | if (! chip->can_capture) |
712 | num_captures = 0; |
713 | err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); |
714 | if (err < 0) |
715 | return err; |
716 | |
717 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); |
718 | if (chip->can_capture) |
719 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); |
720 | |
721 | pcm->private_data = chip; |
722 | pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; |
723 | strcpy(pcm->name, chip->card->shortname); |
724 | chip->pcm = pcm; |
725 | |
726 | chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; |
727 | if (chip->can_byte_swap) |
728 | chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; |
729 | |
730 | chip->playback.cur_formats = chip->formats_ok; |
731 | chip->capture.cur_formats = chip->formats_ok; |
732 | chip->playback.cur_freqs = chip->freqs_ok; |
733 | chip->capture.cur_freqs = chip->freqs_ok; |
734 | |
735 | /* preallocate 64k buffer */ |
736 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
737 | &chip->pdev->dev, |
738 | 64 * 1024, 64 * 1024); |
739 | |
740 | return 0; |
741 | } |
742 | |
743 | |
744 | static void snd_pmac_dbdma_reset(struct snd_pmac *chip) |
745 | { |
746 | out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); |
747 | snd_pmac_wait_ack(&chip->playback); |
748 | out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); |
749 | snd_pmac_wait_ack(&chip->capture); |
750 | } |
751 | |
752 | |
753 | /* |
754 | * handling beep |
755 | */ |
756 | void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed) |
757 | { |
758 | struct pmac_stream *rec = &chip->playback; |
759 | |
760 | snd_pmac_dma_stop(rec); |
761 | st_le16(&chip->extra_dma.cmds->req_count, bytes); |
762 | st_le16(&chip->extra_dma.cmds->xfer_status, 0); |
763 | st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr); |
764 | st_le32(&chip->extra_dma.cmds->phy_addr, addr); |
765 | st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS); |
766 | out_le32(&chip->awacs->control, |
767 | (in_le32(&chip->awacs->control) & ~0x1f00) |
768 | | (speed << 8)); |
769 | out_le32(&chip->awacs->byteswap, 0); |
770 | snd_pmac_dma_set_command(rec, &chip->extra_dma); |
771 | snd_pmac_dma_run(rec, RUN); |
772 | } |
773 | |
774 | void snd_pmac_beep_dma_stop(struct snd_pmac *chip) |
775 | { |
776 | snd_pmac_dma_stop(&chip->playback); |
777 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); |
778 | snd_pmac_pcm_set_format(chip); /* reset format */ |
779 | } |
780 | |
781 | |
782 | /* |
783 | * interrupt handlers |
784 | */ |
785 | static irqreturn_t |
786 | snd_pmac_tx_intr(int irq, void *devid) |
787 | { |
788 | struct snd_pmac *chip = devid; |
789 | snd_pmac_pcm_update(chip, &chip->playback); |
790 | return IRQ_HANDLED; |
791 | } |
792 | |
793 | |
794 | static irqreturn_t |
795 | snd_pmac_rx_intr(int irq, void *devid) |
796 | { |
797 | struct snd_pmac *chip = devid; |
798 | snd_pmac_pcm_update(chip, &chip->capture); |
799 | return IRQ_HANDLED; |
800 | } |
801 | |
802 | |
803 | static irqreturn_t |
804 | snd_pmac_ctrl_intr(int irq, void *devid) |
805 | { |
806 | struct snd_pmac *chip = devid; |
807 | int ctrl = in_le32(&chip->awacs->control); |
808 | |
809 | /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/ |
810 | if (ctrl & MASK_PORTCHG) { |
811 | /* do something when headphone is plugged/unplugged? */ |
812 | if (chip->update_automute) |
813 | chip->update_automute(chip, 1); |
814 | } |
815 | if (ctrl & MASK_CNTLERR) { |
816 | int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; |
817 | if (err && chip->model <= PMAC_SCREAMER) |
818 | snd_printk(KERN_DEBUG "error %x\n", err); |
819 | } |
820 | /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ |
821 | out_le32(&chip->awacs->control, ctrl); |
822 | return IRQ_HANDLED; |
823 | } |
824 | |
825 | |
826 | /* |
827 | * a wrapper to feature call for compatibility |
828 | */ |
829 | static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable) |
830 | { |
831 | if (ppc_md.feature_call) |
832 | ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); |
833 | } |
834 | |
835 | /* |
836 | * release resources |
837 | */ |
838 | |
839 | static int snd_pmac_free(struct snd_pmac *chip) |
840 | { |
841 | /* stop sounds */ |
842 | if (chip->initialized) { |
843 | snd_pmac_dbdma_reset(chip); |
844 | /* disable interrupts from awacs interface */ |
845 | out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); |
846 | } |
847 | |
848 | if (chip->node) |
849 | snd_pmac_sound_feature(chip, 0); |
850 | |
851 | /* clean up mixer if any */ |
852 | if (chip->mixer_free) |
853 | chip->mixer_free(chip); |
854 | |
855 | snd_pmac_detach_beep(chip); |
856 | |
857 | /* release resources */ |
858 | if (chip->irq >= 0) |
859 | free_irq(chip->irq, (void*)chip); |
860 | if (chip->tx_irq >= 0) |
861 | free_irq(chip->tx_irq, (void*)chip); |
862 | if (chip->rx_irq >= 0) |
863 | free_irq(chip->rx_irq, (void*)chip); |
864 | snd_pmac_dbdma_free(chip, &chip->playback.cmd); |
865 | snd_pmac_dbdma_free(chip, &chip->capture.cmd); |
866 | snd_pmac_dbdma_free(chip, &chip->extra_dma); |
867 | snd_pmac_dbdma_free(chip, &emergency_dbdma); |
868 | if (chip->macio_base) |
869 | iounmap(chip->macio_base); |
870 | if (chip->latch_base) |
871 | iounmap(chip->latch_base); |
872 | if (chip->awacs) |
873 | iounmap(chip->awacs); |
874 | if (chip->playback.dma) |
875 | iounmap(chip->playback.dma); |
876 | if (chip->capture.dma) |
877 | iounmap(chip->capture.dma); |
878 | |
879 | if (chip->node) { |
880 | int i; |
881 | for (i = 0; i < 3; i++) { |
882 | if (chip->requested & (1 << i)) |
883 | release_mem_region(chip->rsrc[i].start, |
884 | chip->rsrc[i].end - |
885 | chip->rsrc[i].start + 1); |
886 | } |
887 | } |
888 | |
889 | if (chip->pdev) |
890 | pci_dev_put(chip->pdev); |
891 | of_node_put(chip->node); |
892 | kfree(chip); |
893 | return 0; |
894 | } |
895 | |
896 | |
897 | /* |
898 | * free the device |
899 | */ |
900 | static int snd_pmac_dev_free(struct snd_device *device) |
901 | { |
902 | struct snd_pmac *chip = device->device_data; |
903 | return snd_pmac_free(chip); |
904 | } |
905 | |
906 | |
907 | /* |
908 | * check the machine support byteswap (little-endian) |
909 | */ |
910 | |
911 | static void __devinit detect_byte_swap(struct snd_pmac *chip) |
912 | { |
913 | struct device_node *mio; |
914 | |
915 | /* if seems that Keylargo can't byte-swap */ |
916 | for (mio = chip->node->parent; mio; mio = mio->parent) { |
917 | if (strcmp(mio->name, "mac-io") == 0) { |
918 | if (of_device_is_compatible(mio, "Keylargo")) |
919 | chip->can_byte_swap = 0; |
920 | break; |
921 | } |
922 | } |
923 | |
924 | /* it seems the Pismo & iBook can't byte-swap in hardware. */ |
925 | if (of_machine_is_compatible("PowerBook3,1") || |
926 | of_machine_is_compatible("PowerBook2,1")) |
927 | chip->can_byte_swap = 0 ; |
928 | |
929 | if (of_machine_is_compatible("PowerBook2,1")) |
930 | chip->can_duplex = 0; |
931 | } |
932 | |
933 | |
934 | /* |
935 | * detect a sound chip |
936 | */ |
937 | static int __devinit snd_pmac_detect(struct snd_pmac *chip) |
938 | { |
939 | struct device_node *sound; |
940 | struct device_node *dn; |
941 | const unsigned int *prop; |
942 | unsigned int l; |
943 | struct macio_chip* macio; |
944 | |
945 | if (!machine_is(powermac)) |
946 | return -ENODEV; |
947 | |
948 | chip->subframe = 0; |
949 | chip->revision = 0; |
950 | chip->freqs_ok = 0xff; /* all ok */ |
951 | chip->model = PMAC_AWACS; |
952 | chip->can_byte_swap = 1; |
953 | chip->can_duplex = 1; |
954 | chip->can_capture = 1; |
955 | chip->num_freqs = ARRAY_SIZE(awacs_freqs); |
956 | chip->freq_table = awacs_freqs; |
957 | chip->pdev = NULL; |
958 | |
959 | chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ |
960 | |
961 | /* check machine type */ |
962 | if (of_machine_is_compatible("AAPL,3400/2400") |
963 | || of_machine_is_compatible("AAPL,3500")) |
964 | chip->is_pbook_3400 = 1; |
965 | else if (of_machine_is_compatible("PowerBook1,1") |
966 | || of_machine_is_compatible("AAPL,PowerBook1998")) |
967 | chip->is_pbook_G3 = 1; |
968 | chip->node = of_find_node_by_name(NULL, "awacs"); |
969 | sound = of_node_get(chip->node); |
970 | |
971 | /* |
972 | * powermac G3 models have a node called "davbus" |
973 | * with a child called "sound". |
974 | */ |
975 | if (!chip->node) |
976 | chip->node = of_find_node_by_name(NULL, "davbus"); |
977 | /* |
978 | * if we didn't find a davbus device, try 'i2s-a' since |
979 | * this seems to be what iBooks have |
980 | */ |
981 | if (! chip->node) { |
982 | chip->node = of_find_node_by_name(NULL, "i2s-a"); |
983 | if (chip->node && chip->node->parent && |
984 | chip->node->parent->parent) { |
985 | if (of_device_is_compatible(chip->node->parent->parent, |
986 | "K2-Keylargo")) |
987 | chip->is_k2 = 1; |
988 | } |
989 | } |
990 | if (! chip->node) |
991 | return -ENODEV; |
992 | |
993 | if (!sound) { |
994 | sound = of_find_node_by_name(NULL, "sound"); |
995 | while (sound && sound->parent != chip->node) |
996 | sound = of_find_node_by_name(sound, "sound"); |
997 | } |
998 | if (! sound) { |
999 | of_node_put(chip->node); |
1000 | chip->node = NULL; |
1001 | return -ENODEV; |
1002 | } |
1003 | prop = of_get_property(sound, "sub-frame", NULL); |
1004 | if (prop && *prop < 16) |
1005 | chip->subframe = *prop; |
1006 | prop = of_get_property(sound, "layout-id", NULL); |
1007 | if (prop) { |
1008 | /* partly deprecate snd-powermac, for those machines |
1009 | * that have a layout-id property for now */ |
1010 | printk(KERN_INFO "snd-powermac no longer handles any " |
1011 | "machines with a layout-id property " |
1012 | "in the device-tree, use snd-aoa.\n"); |
1013 | of_node_put(sound); |
1014 | of_node_put(chip->node); |
1015 | chip->node = NULL; |
1016 | return -ENODEV; |
1017 | } |
1018 | /* This should be verified on older screamers */ |
1019 | if (of_device_is_compatible(sound, "screamer")) { |
1020 | chip->model = PMAC_SCREAMER; |
1021 | // chip->can_byte_swap = 0; /* FIXME: check this */ |
1022 | } |
1023 | if (of_device_is_compatible(sound, "burgundy")) { |
1024 | chip->model = PMAC_BURGUNDY; |
1025 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ |
1026 | } |
1027 | if (of_device_is_compatible(sound, "daca")) { |
1028 | chip->model = PMAC_DACA; |
1029 | chip->can_capture = 0; /* no capture */ |
1030 | chip->can_duplex = 0; |
1031 | // chip->can_byte_swap = 0; /* FIXME: check this */ |
1032 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ |
1033 | } |
1034 | if (of_device_is_compatible(sound, "tumbler")) { |
1035 | chip->model = PMAC_TUMBLER; |
1036 | chip->can_capture = of_machine_is_compatible("PowerMac4,2") |
1037 | || of_machine_is_compatible("PowerBook4,1"); |
1038 | chip->can_duplex = 0; |
1039 | // chip->can_byte_swap = 0; /* FIXME: check this */ |
1040 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); |
1041 | chip->freq_table = tumbler_freqs; |
1042 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ |
1043 | } |
1044 | if (of_device_is_compatible(sound, "snapper")) { |
1045 | chip->model = PMAC_SNAPPER; |
1046 | // chip->can_byte_swap = 0; /* FIXME: check this */ |
1047 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); |
1048 | chip->freq_table = tumbler_freqs; |
1049 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ |
1050 | } |
1051 | prop = of_get_property(sound, "device-id", NULL); |
1052 | if (prop) |
1053 | chip->device_id = *prop; |
1054 | dn = of_find_node_by_name(NULL, "perch"); |
1055 | chip->has_iic = (dn != NULL); |
1056 | of_node_put(dn); |
1057 | |
1058 | /* We need the PCI device for DMA allocations, let's use a crude method |
1059 | * for now ... |
1060 | */ |
1061 | macio = macio_find(chip->node, macio_unknown); |
1062 | if (macio == NULL) |
1063 | printk(KERN_WARNING "snd-powermac: can't locate macio !\n"); |
1064 | else { |
1065 | struct pci_dev *pdev = NULL; |
1066 | |
1067 | for_each_pci_dev(pdev) { |
1068 | struct device_node *np = pci_device_to_OF_node(pdev); |
1069 | if (np && np == macio->of_node) { |
1070 | chip->pdev = pdev; |
1071 | break; |
1072 | } |
1073 | } |
1074 | } |
1075 | if (chip->pdev == NULL) |
1076 | printk(KERN_WARNING "snd-powermac: can't locate macio PCI" |
1077 | " device !\n"); |
1078 | |
1079 | detect_byte_swap(chip); |
1080 | |
1081 | /* look for a property saying what sample rates |
1082 | are available */ |
1083 | prop = of_get_property(sound, "sample-rates", &l); |
1084 | if (! prop) |
1085 | prop = of_get_property(sound, "output-frame-rates", &l); |
1086 | if (prop) { |
1087 | int i; |
1088 | chip->freqs_ok = 0; |
1089 | for (l /= sizeof(int); l > 0; --l) { |
1090 | unsigned int r = *prop++; |
1091 | /* Apple 'Fixed' format */ |
1092 | if (r >= 0x10000) |
1093 | r >>= 16; |
1094 | for (i = 0; i < chip->num_freqs; ++i) { |
1095 | if (r == chip->freq_table[i]) { |
1096 | chip->freqs_ok |= (1 << i); |
1097 | break; |
1098 | } |
1099 | } |
1100 | } |
1101 | } else { |
1102 | /* assume only 44.1khz */ |
1103 | chip->freqs_ok = 1; |
1104 | } |
1105 | |
1106 | of_node_put(sound); |
1107 | return 0; |
1108 | } |
1109 | |
1110 | #ifdef PMAC_SUPPORT_AUTOMUTE |
1111 | /* |
1112 | * auto-mute |
1113 | */ |
1114 | static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol, |
1115 | struct snd_ctl_elem_value *ucontrol) |
1116 | { |
1117 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1118 | ucontrol->value.integer.value[0] = chip->auto_mute; |
1119 | return 0; |
1120 | } |
1121 | |
1122 | static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol, |
1123 | struct snd_ctl_elem_value *ucontrol) |
1124 | { |
1125 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1126 | if (ucontrol->value.integer.value[0] != chip->auto_mute) { |
1127 | chip->auto_mute = !!ucontrol->value.integer.value[0]; |
1128 | if (chip->update_automute) |
1129 | chip->update_automute(chip, 1); |
1130 | return 1; |
1131 | } |
1132 | return 0; |
1133 | } |
1134 | |
1135 | static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol, |
1136 | struct snd_ctl_elem_value *ucontrol) |
1137 | { |
1138 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1139 | if (chip->detect_headphone) |
1140 | ucontrol->value.integer.value[0] = chip->detect_headphone(chip); |
1141 | else |
1142 | ucontrol->value.integer.value[0] = 0; |
1143 | return 0; |
1144 | } |
1145 | |
1146 | static struct snd_kcontrol_new auto_mute_controls[] __devinitdata = { |
1147 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1148 | .name = "Auto Mute Switch", |
1149 | .info = snd_pmac_boolean_mono_info, |
1150 | .get = pmac_auto_mute_get, |
1151 | .put = pmac_auto_mute_put, |
1152 | }, |
1153 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1154 | .name = "Headphone Detection", |
1155 | .access = SNDRV_CTL_ELEM_ACCESS_READ, |
1156 | .info = snd_pmac_boolean_mono_info, |
1157 | .get = pmac_hp_detect_get, |
1158 | }, |
1159 | }; |
1160 | |
1161 | int __devinit snd_pmac_add_automute(struct snd_pmac *chip) |
1162 | { |
1163 | int err; |
1164 | chip->auto_mute = 1; |
1165 | err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); |
1166 | if (err < 0) { |
1167 | printk(KERN_ERR "snd-powermac: Failed to add automute control\n"); |
1168 | return err; |
1169 | } |
1170 | chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); |
1171 | return snd_ctl_add(chip->card, chip->hp_detect_ctl); |
1172 | } |
1173 | #endif /* PMAC_SUPPORT_AUTOMUTE */ |
1174 | |
1175 | /* |
1176 | * create and detect a pmac chip record |
1177 | */ |
1178 | int __devinit snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return) |
1179 | { |
1180 | struct snd_pmac *chip; |
1181 | struct device_node *np; |
1182 | int i, err; |
1183 | unsigned int irq; |
1184 | unsigned long ctrl_addr, txdma_addr, rxdma_addr; |
1185 | static struct snd_device_ops ops = { |
1186 | .dev_free = snd_pmac_dev_free, |
1187 | }; |
1188 | |
1189 | *chip_return = NULL; |
1190 | |
1191 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
1192 | if (chip == NULL) |
1193 | return -ENOMEM; |
1194 | chip->card = card; |
1195 | |
1196 | spin_lock_init(&chip->reg_lock); |
1197 | chip->irq = chip->tx_irq = chip->rx_irq = -1; |
1198 | |
1199 | chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; |
1200 | chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; |
1201 | |
1202 | if ((err = snd_pmac_detect(chip)) < 0) |
1203 | goto __error; |
1204 | |
1205 | if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || |
1206 | snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || |
1207 | snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 || |
1208 | snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) { |
1209 | err = -ENOMEM; |
1210 | goto __error; |
1211 | } |
1212 | |
1213 | np = chip->node; |
1214 | chip->requested = 0; |
1215 | if (chip->is_k2) { |
1216 | static char *rnames[] = { |
1217 | "Sound Control", "Sound DMA" }; |
1218 | for (i = 0; i < 2; i ++) { |
1219 | if (of_address_to_resource(np->parent, i, |
1220 | &chip->rsrc[i])) { |
1221 | printk(KERN_ERR "snd: can't translate rsrc " |
1222 | " %d (%s)\n", i, rnames[i]); |
1223 | err = -ENODEV; |
1224 | goto __error; |
1225 | } |
1226 | if (request_mem_region(chip->rsrc[i].start, |
1227 | chip->rsrc[i].end - |
1228 | chip->rsrc[i].start + 1, |
1229 | rnames[i]) == NULL) { |
1230 | printk(KERN_ERR "snd: can't request rsrc " |
1231 | " %d (%s: %pR)\n", |
1232 | i, rnames[i], &chip->rsrc[i]); |
1233 | err = -ENODEV; |
1234 | goto __error; |
1235 | } |
1236 | chip->requested |= (1 << i); |
1237 | } |
1238 | ctrl_addr = chip->rsrc[0].start; |
1239 | txdma_addr = chip->rsrc[1].start; |
1240 | rxdma_addr = txdma_addr + 0x100; |
1241 | } else { |
1242 | static char *rnames[] = { |
1243 | "Sound Control", "Sound Tx DMA", "Sound Rx DMA" }; |
1244 | for (i = 0; i < 3; i ++) { |
1245 | if (of_address_to_resource(np, i, |
1246 | &chip->rsrc[i])) { |
1247 | printk(KERN_ERR "snd: can't translate rsrc " |
1248 | " %d (%s)\n", i, rnames[i]); |
1249 | err = -ENODEV; |
1250 | goto __error; |
1251 | } |
1252 | if (request_mem_region(chip->rsrc[i].start, |
1253 | chip->rsrc[i].end - |
1254 | chip->rsrc[i].start + 1, |
1255 | rnames[i]) == NULL) { |
1256 | printk(KERN_ERR "snd: can't request rsrc " |
1257 | " %d (%s: %pR)\n", |
1258 | i, rnames[i], &chip->rsrc[i]); |
1259 | err = -ENODEV; |
1260 | goto __error; |
1261 | } |
1262 | chip->requested |= (1 << i); |
1263 | } |
1264 | ctrl_addr = chip->rsrc[0].start; |
1265 | txdma_addr = chip->rsrc[1].start; |
1266 | rxdma_addr = chip->rsrc[2].start; |
1267 | } |
1268 | |
1269 | chip->awacs = ioremap(ctrl_addr, 0x1000); |
1270 | chip->playback.dma = ioremap(txdma_addr, 0x100); |
1271 | chip->capture.dma = ioremap(rxdma_addr, 0x100); |
1272 | if (chip->model <= PMAC_BURGUNDY) { |
1273 | irq = irq_of_parse_and_map(np, 0); |
1274 | if (request_irq(irq, snd_pmac_ctrl_intr, 0, |
1275 | "PMac", (void*)chip)) { |
1276 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", |
1277 | irq); |
1278 | err = -EBUSY; |
1279 | goto __error; |
1280 | } |
1281 | chip->irq = irq; |
1282 | } |
1283 | irq = irq_of_parse_and_map(np, 1); |
1284 | if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){ |
1285 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); |
1286 | err = -EBUSY; |
1287 | goto __error; |
1288 | } |
1289 | chip->tx_irq = irq; |
1290 | irq = irq_of_parse_and_map(np, 2); |
1291 | if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) { |
1292 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); |
1293 | err = -EBUSY; |
1294 | goto __error; |
1295 | } |
1296 | chip->rx_irq = irq; |
1297 | |
1298 | snd_pmac_sound_feature(chip, 1); |
1299 | |
1300 | /* reset & enable interrupts */ |
1301 | if (chip->model <= PMAC_BURGUNDY) |
1302 | out_le32(&chip->awacs->control, chip->control_mask); |
1303 | |
1304 | /* Powerbooks have odd ways of enabling inputs such as |
1305 | an expansion-bay CD or sound from an internal modem |
1306 | or a PC-card modem. */ |
1307 | if (chip->is_pbook_3400) { |
1308 | /* Enable CD and PC-card sound inputs. */ |
1309 | /* This is done by reading from address |
1310 | * f301a000, + 0x10 to enable the expansion-bay |
1311 | * CD sound input, + 0x80 to enable the PC-card |
1312 | * sound input. The 0x100 enables the SCSI bus |
1313 | * terminator power. |
1314 | */ |
1315 | chip->latch_base = ioremap (0xf301a000, 0x1000); |
1316 | in_8(chip->latch_base + 0x190); |
1317 | } else if (chip->is_pbook_G3) { |
1318 | struct device_node* mio; |
1319 | for (mio = chip->node->parent; mio; mio = mio->parent) { |
1320 | if (strcmp(mio->name, "mac-io") == 0) { |
1321 | struct resource r; |
1322 | if (of_address_to_resource(mio, 0, &r) == 0) |
1323 | chip->macio_base = |
1324 | ioremap(r.start, 0x40); |
1325 | break; |
1326 | } |
1327 | } |
1328 | /* Enable CD sound input. */ |
1329 | /* The relevant bits for writing to this byte are 0x8f. |
1330 | * I haven't found out what the 0x80 bit does. |
1331 | * For the 0xf bits, writing 3 or 7 enables the CD |
1332 | * input, any other value disables it. Values |
1333 | * 1, 3, 5, 7 enable the microphone. Values 0, 2, |
1334 | * 4, 6, 8 - f enable the input from the modem. |
1335 | */ |
1336 | if (chip->macio_base) |
1337 | out_8(chip->macio_base + 0x37, 3); |
1338 | } |
1339 | |
1340 | /* Reset dbdma channels */ |
1341 | snd_pmac_dbdma_reset(chip); |
1342 | |
1343 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) |
1344 | goto __error; |
1345 | |
1346 | *chip_return = chip; |
1347 | return 0; |
1348 | |
1349 | __error: |
1350 | snd_pmac_free(chip); |
1351 | return err; |
1352 | } |
1353 | |
1354 | |
1355 | /* |
1356 | * sleep notify for powerbook |
1357 | */ |
1358 | |
1359 | #ifdef CONFIG_PM |
1360 | |
1361 | /* |
1362 | * Save state when going to sleep, restore it afterwards. |
1363 | */ |
1364 | |
1365 | void snd_pmac_suspend(struct snd_pmac *chip) |
1366 | { |
1367 | unsigned long flags; |
1368 | |
1369 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); |
1370 | if (chip->suspend) |
1371 | chip->suspend(chip); |
1372 | snd_pcm_suspend_all(chip->pcm); |
1373 | spin_lock_irqsave(&chip->reg_lock, flags); |
1374 | snd_pmac_beep_stop(chip); |
1375 | spin_unlock_irqrestore(&chip->reg_lock, flags); |
1376 | if (chip->irq >= 0) |
1377 | disable_irq(chip->irq); |
1378 | if (chip->tx_irq >= 0) |
1379 | disable_irq(chip->tx_irq); |
1380 | if (chip->rx_irq >= 0) |
1381 | disable_irq(chip->rx_irq); |
1382 | snd_pmac_sound_feature(chip, 0); |
1383 | } |
1384 | |
1385 | void snd_pmac_resume(struct snd_pmac *chip) |
1386 | { |
1387 | snd_pmac_sound_feature(chip, 1); |
1388 | if (chip->resume) |
1389 | chip->resume(chip); |
1390 | /* enable CD sound input */ |
1391 | if (chip->macio_base && chip->is_pbook_G3) |
1392 | out_8(chip->macio_base + 0x37, 3); |
1393 | else if (chip->is_pbook_3400) |
1394 | in_8(chip->latch_base + 0x190); |
1395 | |
1396 | snd_pmac_pcm_set_format(chip); |
1397 | |
1398 | if (chip->irq >= 0) |
1399 | enable_irq(chip->irq); |
1400 | if (chip->tx_irq >= 0) |
1401 | enable_irq(chip->tx_irq); |
1402 | if (chip->rx_irq >= 0) |
1403 | enable_irq(chip->rx_irq); |
1404 | |
1405 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); |
1406 | } |
1407 | |
1408 | #endif /* CONFIG_PM */ |
1409 | |
1410 |
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javiroman/ks7010
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Tags:
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od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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