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1da177e4 LT |
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 <sound/driver.h> | |
24 | #include <asm/io.h> | |
25 | #include <asm/irq.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <sound/core.h> | |
31 | #include "pmac.h" | |
32 | #include <sound/pcm_params.h> | |
33 | #ifdef CONFIG_PPC_HAS_FEATURE_CALLS | |
34 | #include <asm/pmac_feature.h> | |
35 | #else | |
36 | #include <asm/feature.h> | |
37 | #endif | |
38 | ||
39 | ||
40 | #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK) | |
41 | static int snd_pmac_register_sleep_notifier(pmac_t *chip); | |
42 | static int snd_pmac_unregister_sleep_notifier(pmac_t *chip); | |
43 | static int snd_pmac_suspend(snd_card_t *card, pm_message_t state); | |
44 | static int snd_pmac_resume(snd_card_t *card); | |
45 | #endif | |
46 | ||
47 | ||
48 | /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ | |
49 | static int awacs_freqs[8] = { | |
50 | 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 | |
51 | }; | |
52 | /* fixed frequency table for tumbler */ | |
53 | static int tumbler_freqs[1] = { | |
54 | 44100 | |
55 | }; | |
56 | ||
57 | /* | |
58 | * allocate DBDMA command arrays | |
59 | */ | |
60 | static int snd_pmac_dbdma_alloc(pmac_dbdma_t *rec, int size) | |
61 | { | |
62 | rec->space = kmalloc(sizeof(struct dbdma_cmd) * (size + 1), GFP_KERNEL); | |
63 | if (rec->space == NULL) | |
64 | return -ENOMEM; | |
65 | rec->size = size; | |
66 | memset(rec->space, 0, sizeof(struct dbdma_cmd) * (size + 1)); | |
67 | rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); | |
68 | rec->addr = virt_to_bus(rec->cmds); | |
69 | return 0; | |
70 | } | |
71 | ||
72 | static void snd_pmac_dbdma_free(pmac_dbdma_t *rec) | |
73 | { | |
74 | if (rec) | |
75 | kfree(rec->space); | |
76 | } | |
77 | ||
78 | ||
79 | /* | |
80 | * pcm stuff | |
81 | */ | |
82 | ||
83 | /* | |
84 | * look up frequency table | |
85 | */ | |
86 | ||
87 | unsigned int snd_pmac_rate_index(pmac_t *chip, pmac_stream_t *rec, unsigned int rate) | |
88 | { | |
89 | int i, ok, found; | |
90 | ||
91 | ok = rec->cur_freqs; | |
92 | if (rate > chip->freq_table[0]) | |
93 | return 0; | |
94 | found = 0; | |
95 | for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { | |
96 | if (! (ok & 1)) continue; | |
97 | found = i; | |
98 | if (rate >= chip->freq_table[i]) | |
99 | break; | |
100 | } | |
101 | return found; | |
102 | } | |
103 | ||
104 | /* | |
105 | * check whether another stream is active | |
106 | */ | |
107 | static inline int another_stream(int stream) | |
108 | { | |
109 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
110 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
111 | } | |
112 | ||
113 | /* | |
114 | * allocate buffers | |
115 | */ | |
116 | static int snd_pmac_pcm_hw_params(snd_pcm_substream_t *subs, | |
117 | snd_pcm_hw_params_t *hw_params) | |
118 | { | |
119 | return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); | |
120 | } | |
121 | ||
122 | /* | |
123 | * release buffers | |
124 | */ | |
125 | static int snd_pmac_pcm_hw_free(snd_pcm_substream_t *subs) | |
126 | { | |
127 | snd_pcm_lib_free_pages(subs); | |
128 | return 0; | |
129 | } | |
130 | ||
131 | /* | |
132 | * get a stream of the opposite direction | |
133 | */ | |
134 | static pmac_stream_t *snd_pmac_get_stream(pmac_t *chip, int stream) | |
135 | { | |
136 | switch (stream) { | |
137 | case SNDRV_PCM_STREAM_PLAYBACK: | |
138 | return &chip->playback; | |
139 | case SNDRV_PCM_STREAM_CAPTURE: | |
140 | return &chip->capture; | |
141 | default: | |
142 | snd_BUG(); | |
143 | return NULL; | |
144 | } | |
145 | } | |
146 | ||
147 | /* | |
148 | * wait while run status is on | |
149 | */ | |
150 | inline static void | |
151 | snd_pmac_wait_ack(pmac_stream_t *rec) | |
152 | { | |
153 | int timeout = 50000; | |
154 | while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) | |
155 | udelay(1); | |
156 | } | |
157 | ||
158 | /* | |
159 | * set the format and rate to the chip. | |
160 | * call the lowlevel function if defined (e.g. for AWACS). | |
161 | */ | |
162 | static void snd_pmac_pcm_set_format(pmac_t *chip) | |
163 | { | |
164 | /* set up frequency and format */ | |
165 | out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); | |
166 | out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); | |
167 | if (chip->set_format) | |
168 | chip->set_format(chip); | |
169 | } | |
170 | ||
171 | /* | |
172 | * stop the DMA transfer | |
173 | */ | |
174 | inline static void snd_pmac_dma_stop(pmac_stream_t *rec) | |
175 | { | |
176 | out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); | |
177 | snd_pmac_wait_ack(rec); | |
178 | } | |
179 | ||
180 | /* | |
181 | * set the command pointer address | |
182 | */ | |
183 | inline static void snd_pmac_dma_set_command(pmac_stream_t *rec, pmac_dbdma_t *cmd) | |
184 | { | |
185 | out_le32(&rec->dma->cmdptr, cmd->addr); | |
186 | } | |
187 | ||
188 | /* | |
189 | * start the DMA | |
190 | */ | |
191 | inline static void snd_pmac_dma_run(pmac_stream_t *rec, int status) | |
192 | { | |
193 | out_le32(&rec->dma->control, status | (status << 16)); | |
194 | } | |
195 | ||
196 | ||
197 | /* | |
198 | * prepare playback/capture stream | |
199 | */ | |
200 | static int snd_pmac_pcm_prepare(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs) | |
201 | { | |
202 | int i; | |
203 | volatile struct dbdma_cmd __iomem *cp; | |
204 | snd_pcm_runtime_t *runtime = subs->runtime; | |
205 | int rate_index; | |
206 | long offset; | |
207 | pmac_stream_t *astr; | |
208 | ||
209 | rec->dma_size = snd_pcm_lib_buffer_bytes(subs); | |
210 | rec->period_size = snd_pcm_lib_period_bytes(subs); | |
211 | rec->nperiods = rec->dma_size / rec->period_size; | |
212 | rec->cur_period = 0; | |
213 | rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); | |
214 | ||
215 | /* set up constraints */ | |
216 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
217 | snd_runtime_check(astr, return -EINVAL); | |
218 | astr->cur_freqs = 1 << rate_index; | |
219 | astr->cur_formats = 1 << runtime->format; | |
220 | chip->rate_index = rate_index; | |
221 | chip->format = runtime->format; | |
222 | ||
223 | /* We really want to execute a DMA stop command, after the AWACS | |
224 | * is initialized. | |
225 | * For reasons I don't understand, it stops the hissing noise | |
226 | * common to many PowerBook G3 systems and random noise otherwise | |
227 | * captured on iBook2's about every third time. -ReneR | |
228 | */ | |
229 | spin_lock_irq(&chip->reg_lock); | |
230 | snd_pmac_dma_stop(rec); | |
231 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); | |
232 | snd_pmac_dma_set_command(rec, &chip->extra_dma); | |
233 | snd_pmac_dma_run(rec, RUN); | |
234 | spin_unlock_irq(&chip->reg_lock); | |
235 | mdelay(5); | |
236 | spin_lock_irq(&chip->reg_lock); | |
237 | /* continuous DMA memory type doesn't provide the physical address, | |
238 | * so we need to resolve the address here... | |
239 | */ | |
240 | offset = virt_to_bus(runtime->dma_area); | |
241 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { | |
242 | st_le32(&cp->phy_addr, offset); | |
243 | st_le16(&cp->req_count, rec->period_size); | |
244 | /*st_le16(&cp->res_count, 0);*/ | |
245 | st_le16(&cp->xfer_status, 0); | |
246 | offset += rec->period_size; | |
247 | } | |
248 | /* make loop */ | |
249 | st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); | |
250 | st_le32(&cp->cmd_dep, rec->cmd.addr); | |
251 | ||
252 | snd_pmac_dma_stop(rec); | |
253 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
254 | spin_unlock_irq(&chip->reg_lock); | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | ||
260 | /* | |
261 | * PCM trigger/stop | |
262 | */ | |
263 | static int snd_pmac_pcm_trigger(pmac_t *chip, pmac_stream_t *rec, | |
264 | snd_pcm_substream_t *subs, int cmd) | |
265 | { | |
266 | volatile struct dbdma_cmd __iomem *cp; | |
267 | int i, command; | |
268 | ||
269 | switch (cmd) { | |
270 | case SNDRV_PCM_TRIGGER_START: | |
271 | case SNDRV_PCM_TRIGGER_RESUME: | |
272 | if (rec->running) | |
273 | return -EBUSY; | |
274 | command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? | |
275 | OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; | |
276 | spin_lock(&chip->reg_lock); | |
277 | snd_pmac_beep_stop(chip); | |
278 | snd_pmac_pcm_set_format(chip); | |
279 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
280 | out_le16(&cp->command, command); | |
281 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
282 | (void)in_le32(&rec->dma->status); | |
283 | snd_pmac_dma_run(rec, RUN|WAKE); | |
284 | rec->running = 1; | |
285 | spin_unlock(&chip->reg_lock); | |
286 | break; | |
287 | ||
288 | case SNDRV_PCM_TRIGGER_STOP: | |
289 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
290 | spin_lock(&chip->reg_lock); | |
291 | rec->running = 0; | |
292 | /*printk("stopped!!\n");*/ | |
293 | snd_pmac_dma_stop(rec); | |
294 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
295 | out_le16(&cp->command, DBDMA_STOP); | |
296 | spin_unlock(&chip->reg_lock); | |
297 | break; | |
298 | ||
299 | default: | |
300 | return -EINVAL; | |
301 | } | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | /* | |
307 | * return the current pointer | |
308 | */ | |
309 | inline | |
310 | static snd_pcm_uframes_t snd_pmac_pcm_pointer(pmac_t *chip, pmac_stream_t *rec, | |
311 | snd_pcm_substream_t *subs) | |
312 | { | |
313 | int count = 0; | |
314 | ||
315 | #if 1 /* hmm.. how can we get the current dma pointer?? */ | |
316 | int stat; | |
317 | volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; | |
318 | stat = ld_le16(&cp->xfer_status); | |
319 | if (stat & (ACTIVE|DEAD)) { | |
320 | count = in_le16(&cp->res_count); | |
321 | if (count) | |
322 | count = rec->period_size - count; | |
323 | } | |
324 | #endif | |
325 | count += rec->cur_period * rec->period_size; | |
326 | /*printk("pointer=%d\n", count);*/ | |
327 | return bytes_to_frames(subs->runtime, count); | |
328 | } | |
329 | ||
330 | /* | |
331 | * playback | |
332 | */ | |
333 | ||
334 | static int snd_pmac_playback_prepare(snd_pcm_substream_t *subs) | |
335 | { | |
336 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
337 | return snd_pmac_pcm_prepare(chip, &chip->playback, subs); | |
338 | } | |
339 | ||
340 | static int snd_pmac_playback_trigger(snd_pcm_substream_t *subs, | |
341 | int cmd) | |
342 | { | |
343 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
344 | return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); | |
345 | } | |
346 | ||
347 | static snd_pcm_uframes_t snd_pmac_playback_pointer(snd_pcm_substream_t *subs) | |
348 | { | |
349 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
350 | return snd_pmac_pcm_pointer(chip, &chip->playback, subs); | |
351 | } | |
352 | ||
353 | ||
354 | /* | |
355 | * capture | |
356 | */ | |
357 | ||
358 | static int snd_pmac_capture_prepare(snd_pcm_substream_t *subs) | |
359 | { | |
360 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
361 | return snd_pmac_pcm_prepare(chip, &chip->capture, subs); | |
362 | } | |
363 | ||
364 | static int snd_pmac_capture_trigger(snd_pcm_substream_t *subs, | |
365 | int cmd) | |
366 | { | |
367 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
368 | return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); | |
369 | } | |
370 | ||
371 | static snd_pcm_uframes_t snd_pmac_capture_pointer(snd_pcm_substream_t *subs) | |
372 | { | |
373 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
374 | return snd_pmac_pcm_pointer(chip, &chip->capture, subs); | |
375 | } | |
376 | ||
377 | ||
378 | /* | |
379 | * update playback/capture pointer from interrupts | |
380 | */ | |
381 | static void snd_pmac_pcm_update(pmac_t *chip, pmac_stream_t *rec) | |
382 | { | |
383 | volatile struct dbdma_cmd __iomem *cp; | |
384 | int c; | |
385 | int stat; | |
386 | ||
387 | spin_lock(&chip->reg_lock); | |
388 | if (rec->running) { | |
389 | cp = &rec->cmd.cmds[rec->cur_period]; | |
390 | for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ | |
391 | stat = ld_le16(&cp->xfer_status); | |
392 | if (! (stat & ACTIVE)) | |
393 | break; | |
394 | /*printk("update frag %d\n", rec->cur_period);*/ | |
395 | st_le16(&cp->xfer_status, 0); | |
396 | st_le16(&cp->req_count, rec->period_size); | |
397 | /*st_le16(&cp->res_count, 0);*/ | |
398 | rec->cur_period++; | |
399 | if (rec->cur_period >= rec->nperiods) { | |
400 | rec->cur_period = 0; | |
401 | cp = rec->cmd.cmds; | |
402 | } else | |
403 | cp++; | |
404 | spin_unlock(&chip->reg_lock); | |
405 | snd_pcm_period_elapsed(rec->substream); | |
406 | spin_lock(&chip->reg_lock); | |
407 | } | |
408 | } | |
409 | spin_unlock(&chip->reg_lock); | |
410 | } | |
411 | ||
412 | ||
413 | /* | |
414 | * hw info | |
415 | */ | |
416 | ||
417 | static snd_pcm_hardware_t snd_pmac_playback = | |
418 | { | |
419 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
420 | SNDRV_PCM_INFO_MMAP | | |
421 | SNDRV_PCM_INFO_MMAP_VALID | | |
422 | SNDRV_PCM_INFO_RESUME), | |
423 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
424 | .rates = SNDRV_PCM_RATE_8000_44100, | |
425 | .rate_min = 7350, | |
426 | .rate_max = 44100, | |
427 | .channels_min = 2, | |
428 | .channels_max = 2, | |
429 | .buffer_bytes_max = 131072, | |
430 | .period_bytes_min = 256, | |
431 | .period_bytes_max = 16384, | |
432 | .periods_min = 3, | |
433 | .periods_max = PMAC_MAX_FRAGS, | |
434 | }; | |
435 | ||
436 | static snd_pcm_hardware_t snd_pmac_capture = | |
437 | { | |
438 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
439 | SNDRV_PCM_INFO_MMAP | | |
440 | SNDRV_PCM_INFO_MMAP_VALID | | |
441 | SNDRV_PCM_INFO_RESUME), | |
442 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
443 | .rates = SNDRV_PCM_RATE_8000_44100, | |
444 | .rate_min = 7350, | |
445 | .rate_max = 44100, | |
446 | .channels_min = 2, | |
447 | .channels_max = 2, | |
448 | .buffer_bytes_max = 131072, | |
449 | .period_bytes_min = 256, | |
450 | .period_bytes_max = 16384, | |
451 | .periods_min = 3, | |
452 | .periods_max = PMAC_MAX_FRAGS, | |
453 | }; | |
454 | ||
455 | ||
456 | #if 0 // NYI | |
457 | static int snd_pmac_hw_rule_rate(snd_pcm_hw_params_t *params, | |
458 | snd_pcm_hw_rule_t *rule) | |
459 | { | |
460 | pmac_t *chip = rule->private; | |
461 | pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
462 | int i, freq_table[8], num_freqs; | |
463 | ||
464 | snd_runtime_check(rec, return -EINVAL); | |
465 | num_freqs = 0; | |
466 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
467 | if (rec->cur_freqs & (1 << i)) | |
468 | freq_table[num_freqs++] = chip->freq_table[i]; | |
469 | } | |
470 | ||
471 | return snd_interval_list(hw_param_interval(params, rule->var), | |
472 | num_freqs, freq_table, 0); | |
473 | } | |
474 | ||
475 | static int snd_pmac_hw_rule_format(snd_pcm_hw_params_t *params, | |
476 | snd_pcm_hw_rule_t *rule) | |
477 | { | |
478 | pmac_t *chip = rule->private; | |
479 | pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
480 | ||
481 | snd_runtime_check(rec, return -EINVAL); | |
482 | return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), | |
483 | rec->cur_formats); | |
484 | } | |
485 | #endif // NYI | |
486 | ||
487 | static int snd_pmac_pcm_open(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs) | |
488 | { | |
489 | snd_pcm_runtime_t *runtime = subs->runtime; | |
490 | int i, j, fflags; | |
491 | static int typical_freqs[] = { | |
492 | 44100, | |
493 | 22050, | |
494 | 11025, | |
495 | 0, | |
496 | }; | |
497 | static int typical_freq_flags[] = { | |
498 | SNDRV_PCM_RATE_44100, | |
499 | SNDRV_PCM_RATE_22050, | |
500 | SNDRV_PCM_RATE_11025, | |
501 | 0, | |
502 | }; | |
503 | ||
504 | /* look up frequency table and fill bit mask */ | |
505 | runtime->hw.rates = 0; | |
506 | fflags = chip->freqs_ok; | |
507 | for (i = 0; typical_freqs[i]; i++) { | |
508 | for (j = 0; j < chip->num_freqs; j++) { | |
509 | if ((chip->freqs_ok & (1 << j)) && | |
510 | chip->freq_table[j] == typical_freqs[i]) { | |
511 | runtime->hw.rates |= typical_freq_flags[i]; | |
512 | fflags &= ~(1 << j); | |
513 | break; | |
514 | } | |
515 | } | |
516 | } | |
517 | if (fflags) /* rest */ | |
518 | runtime->hw.rates |= SNDRV_PCM_RATE_KNOT; | |
519 | ||
520 | /* check for minimum and maximum rates */ | |
521 | for (i = 0; i < chip->num_freqs; i++) { | |
522 | if (chip->freqs_ok & (1 << i)) { | |
523 | runtime->hw.rate_max = chip->freq_table[i]; | |
524 | break; | |
525 | } | |
526 | } | |
527 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
528 | if (chip->freqs_ok & (1 << i)) { | |
529 | runtime->hw.rate_min = chip->freq_table[i]; | |
530 | break; | |
531 | } | |
532 | } | |
533 | runtime->hw.formats = chip->formats_ok; | |
534 | if (chip->can_capture) { | |
535 | if (! chip->can_duplex) | |
536 | runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; | |
537 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
538 | } | |
539 | runtime->private_data = rec; | |
540 | rec->substream = subs; | |
541 | ||
542 | #if 0 /* FIXME: still under development.. */ | |
543 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
544 | snd_pmac_hw_rule_rate, chip, rec->stream, -1); | |
545 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, | |
546 | snd_pmac_hw_rule_format, chip, rec->stream, -1); | |
547 | #endif | |
548 | ||
549 | runtime->hw.periods_max = rec->cmd.size - 1; | |
550 | ||
551 | if (chip->can_duplex) | |
552 | snd_pcm_set_sync(subs); | |
553 | ||
554 | /* constraints to fix choppy sound */ | |
555 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
556 | return 0; | |
557 | } | |
558 | ||
559 | static int snd_pmac_pcm_close(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs) | |
560 | { | |
561 | pmac_stream_t *astr; | |
562 | ||
563 | snd_pmac_dma_stop(rec); | |
564 | ||
565 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
566 | snd_runtime_check(astr, return -EINVAL); | |
567 | ||
568 | /* reset constraints */ | |
569 | astr->cur_freqs = chip->freqs_ok; | |
570 | astr->cur_formats = chip->formats_ok; | |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
575 | static int snd_pmac_playback_open(snd_pcm_substream_t *subs) | |
576 | { | |
577 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
578 | ||
579 | subs->runtime->hw = snd_pmac_playback; | |
580 | return snd_pmac_pcm_open(chip, &chip->playback, subs); | |
581 | } | |
582 | ||
583 | static int snd_pmac_capture_open(snd_pcm_substream_t *subs) | |
584 | { | |
585 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
586 | ||
587 | subs->runtime->hw = snd_pmac_capture; | |
588 | return snd_pmac_pcm_open(chip, &chip->capture, subs); | |
589 | } | |
590 | ||
591 | static int snd_pmac_playback_close(snd_pcm_substream_t *subs) | |
592 | { | |
593 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
594 | ||
595 | return snd_pmac_pcm_close(chip, &chip->playback, subs); | |
596 | } | |
597 | ||
598 | static int snd_pmac_capture_close(snd_pcm_substream_t *subs) | |
599 | { | |
600 | pmac_t *chip = snd_pcm_substream_chip(subs); | |
601 | ||
602 | return snd_pmac_pcm_close(chip, &chip->capture, subs); | |
603 | } | |
604 | ||
605 | /* | |
606 | */ | |
607 | ||
608 | static snd_pcm_ops_t snd_pmac_playback_ops = { | |
609 | .open = snd_pmac_playback_open, | |
610 | .close = snd_pmac_playback_close, | |
611 | .ioctl = snd_pcm_lib_ioctl, | |
612 | .hw_params = snd_pmac_pcm_hw_params, | |
613 | .hw_free = snd_pmac_pcm_hw_free, | |
614 | .prepare = snd_pmac_playback_prepare, | |
615 | .trigger = snd_pmac_playback_trigger, | |
616 | .pointer = snd_pmac_playback_pointer, | |
617 | }; | |
618 | ||
619 | static snd_pcm_ops_t snd_pmac_capture_ops = { | |
620 | .open = snd_pmac_capture_open, | |
621 | .close = snd_pmac_capture_close, | |
622 | .ioctl = snd_pcm_lib_ioctl, | |
623 | .hw_params = snd_pmac_pcm_hw_params, | |
624 | .hw_free = snd_pmac_pcm_hw_free, | |
625 | .prepare = snd_pmac_capture_prepare, | |
626 | .trigger = snd_pmac_capture_trigger, | |
627 | .pointer = snd_pmac_capture_pointer, | |
628 | }; | |
629 | ||
630 | static void pmac_pcm_free(snd_pcm_t *pcm) | |
631 | { | |
632 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
633 | } | |
634 | ||
635 | int __init snd_pmac_pcm_new(pmac_t *chip) | |
636 | { | |
637 | snd_pcm_t *pcm; | |
638 | int err; | |
639 | int num_captures = 1; | |
640 | ||
641 | if (! chip->can_capture) | |
642 | num_captures = 0; | |
643 | err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); | |
644 | if (err < 0) | |
645 | return err; | |
646 | ||
647 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); | |
648 | if (chip->can_capture) | |
649 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); | |
650 | ||
651 | pcm->private_data = chip; | |
652 | pcm->private_free = pmac_pcm_free; | |
653 | pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; | |
654 | strcpy(pcm->name, chip->card->shortname); | |
655 | chip->pcm = pcm; | |
656 | ||
657 | chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; | |
658 | if (chip->can_byte_swap) | |
659 | chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; | |
660 | ||
661 | chip->playback.cur_formats = chip->formats_ok; | |
662 | chip->capture.cur_formats = chip->formats_ok; | |
663 | chip->playback.cur_freqs = chip->freqs_ok; | |
664 | chip->capture.cur_freqs = chip->freqs_ok; | |
665 | ||
666 | /* preallocate 64k buffer */ | |
667 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, | |
668 | snd_dma_continuous_data(GFP_KERNEL), | |
669 | 64 * 1024, 64 * 1024); | |
670 | ||
671 | return 0; | |
672 | } | |
673 | ||
674 | ||
675 | static void snd_pmac_dbdma_reset(pmac_t *chip) | |
676 | { | |
677 | out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
678 | snd_pmac_wait_ack(&chip->playback); | |
679 | out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
680 | snd_pmac_wait_ack(&chip->capture); | |
681 | } | |
682 | ||
683 | ||
684 | /* | |
685 | * handling beep | |
686 | */ | |
687 | void snd_pmac_beep_dma_start(pmac_t *chip, int bytes, unsigned long addr, int speed) | |
688 | { | |
689 | pmac_stream_t *rec = &chip->playback; | |
690 | ||
691 | snd_pmac_dma_stop(rec); | |
692 | st_le16(&chip->extra_dma.cmds->req_count, bytes); | |
693 | st_le16(&chip->extra_dma.cmds->xfer_status, 0); | |
694 | st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr); | |
695 | st_le32(&chip->extra_dma.cmds->phy_addr, addr); | |
696 | st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS); | |
697 | out_le32(&chip->awacs->control, | |
698 | (in_le32(&chip->awacs->control) & ~0x1f00) | |
699 | | (speed << 8)); | |
700 | out_le32(&chip->awacs->byteswap, 0); | |
701 | snd_pmac_dma_set_command(rec, &chip->extra_dma); | |
702 | snd_pmac_dma_run(rec, RUN); | |
703 | } | |
704 | ||
705 | void snd_pmac_beep_dma_stop(pmac_t *chip) | |
706 | { | |
707 | snd_pmac_dma_stop(&chip->playback); | |
708 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); | |
709 | snd_pmac_pcm_set_format(chip); /* reset format */ | |
710 | } | |
711 | ||
712 | ||
713 | /* | |
714 | * interrupt handlers | |
715 | */ | |
716 | static irqreturn_t | |
717 | snd_pmac_tx_intr(int irq, void *devid, struct pt_regs *regs) | |
718 | { | |
719 | pmac_t *chip = devid; | |
720 | snd_pmac_pcm_update(chip, &chip->playback); | |
721 | return IRQ_HANDLED; | |
722 | } | |
723 | ||
724 | ||
725 | static irqreturn_t | |
726 | snd_pmac_rx_intr(int irq, void *devid, struct pt_regs *regs) | |
727 | { | |
728 | pmac_t *chip = devid; | |
729 | snd_pmac_pcm_update(chip, &chip->capture); | |
730 | return IRQ_HANDLED; | |
731 | } | |
732 | ||
733 | ||
734 | static irqreturn_t | |
735 | snd_pmac_ctrl_intr(int irq, void *devid, struct pt_regs *regs) | |
736 | { | |
737 | pmac_t *chip = devid; | |
738 | int ctrl = in_le32(&chip->awacs->control); | |
739 | ||
740 | /*printk("pmac: control interrupt.. 0x%x\n", ctrl);*/ | |
741 | if (ctrl & MASK_PORTCHG) { | |
742 | /* do something when headphone is plugged/unplugged? */ | |
743 | if (chip->update_automute) | |
744 | chip->update_automute(chip, 1); | |
745 | } | |
746 | if (ctrl & MASK_CNTLERR) { | |
747 | int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; | |
748 | if (err && chip->model <= PMAC_SCREAMER) | |
749 | snd_printk(KERN_DEBUG "error %x\n", err); | |
750 | } | |
751 | /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ | |
752 | out_le32(&chip->awacs->control, ctrl); | |
753 | return IRQ_HANDLED; | |
754 | } | |
755 | ||
756 | ||
757 | /* | |
758 | * a wrapper to feature call for compatibility | |
759 | */ | |
760 | #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK) | |
761 | static void snd_pmac_sound_feature(pmac_t *chip, int enable) | |
762 | { | |
763 | #ifdef CONFIG_PPC_HAS_FEATURE_CALLS | |
764 | ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); | |
765 | #else | |
766 | if (chip->is_pbook_G3) { | |
767 | pmu_suspend(); | |
768 | feature_clear(chip->node, FEATURE_Sound_power); | |
769 | feature_clear(chip->node, FEATURE_Sound_CLK_enable); | |
770 | big_mdelay(1000); /* XXX */ | |
771 | pmu_resume(); | |
772 | } | |
773 | if (chip->is_pbook_3400) { | |
774 | feature_set(chip->node, FEATURE_IOBUS_enable); | |
775 | udelay(10); | |
776 | } | |
777 | #endif | |
778 | } | |
779 | #else /* CONFIG_PM && CONFIG_PMAC_PBOOK */ | |
780 | #define snd_pmac_sound_feature(chip,enable) /**/ | |
781 | #endif /* CONFIG_PM && CONFIG_PMAC_PBOOK */ | |
782 | ||
783 | /* | |
784 | * release resources | |
785 | */ | |
786 | ||
787 | static int snd_pmac_free(pmac_t *chip) | |
788 | { | |
789 | int i; | |
790 | ||
791 | /* stop sounds */ | |
792 | if (chip->initialized) { | |
793 | snd_pmac_dbdma_reset(chip); | |
794 | /* disable interrupts from awacs interface */ | |
795 | out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); | |
796 | } | |
797 | ||
798 | snd_pmac_sound_feature(chip, 0); | |
799 | #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK) | |
800 | snd_pmac_unregister_sleep_notifier(chip); | |
801 | #endif | |
802 | ||
803 | /* clean up mixer if any */ | |
804 | if (chip->mixer_free) | |
805 | chip->mixer_free(chip); | |
806 | ||
807 | snd_pmac_detach_beep(chip); | |
808 | ||
809 | /* release resources */ | |
810 | if (chip->irq >= 0) | |
811 | free_irq(chip->irq, (void*)chip); | |
812 | if (chip->tx_irq >= 0) | |
813 | free_irq(chip->tx_irq, (void*)chip); | |
814 | if (chip->rx_irq >= 0) | |
815 | free_irq(chip->rx_irq, (void*)chip); | |
816 | snd_pmac_dbdma_free(&chip->playback.cmd); | |
817 | snd_pmac_dbdma_free(&chip->capture.cmd); | |
818 | snd_pmac_dbdma_free(&chip->extra_dma); | |
819 | if (chip->macio_base) | |
820 | iounmap(chip->macio_base); | |
821 | if (chip->latch_base) | |
822 | iounmap(chip->latch_base); | |
823 | if (chip->awacs) | |
824 | iounmap(chip->awacs); | |
825 | if (chip->playback.dma) | |
826 | iounmap(chip->playback.dma); | |
827 | if (chip->capture.dma) | |
828 | iounmap(chip->capture.dma); | |
829 | if (chip->node) { | |
830 | for (i = 0; i < 3; i++) { | |
831 | if (chip->of_requested & (1 << i)) | |
832 | release_OF_resource(chip->node, i); | |
833 | } | |
834 | } | |
835 | kfree(chip); | |
836 | return 0; | |
837 | } | |
838 | ||
839 | ||
840 | /* | |
841 | * free the device | |
842 | */ | |
843 | static int snd_pmac_dev_free(snd_device_t *device) | |
844 | { | |
845 | pmac_t *chip = device->device_data; | |
846 | return snd_pmac_free(chip); | |
847 | } | |
848 | ||
849 | ||
850 | /* | |
851 | * check the machine support byteswap (little-endian) | |
852 | */ | |
853 | ||
854 | static void __init detect_byte_swap(pmac_t *chip) | |
855 | { | |
856 | struct device_node *mio; | |
857 | ||
858 | /* if seems that Keylargo can't byte-swap */ | |
859 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
860 | if (strcmp(mio->name, "mac-io") == 0) { | |
861 | if (device_is_compatible(mio, "Keylargo")) | |
862 | chip->can_byte_swap = 0; | |
863 | break; | |
864 | } | |
865 | } | |
866 | ||
867 | /* it seems the Pismo & iBook can't byte-swap in hardware. */ | |
868 | if (machine_is_compatible("PowerBook3,1") || | |
869 | machine_is_compatible("PowerBook2,1")) | |
870 | chip->can_byte_swap = 0 ; | |
871 | ||
872 | if (machine_is_compatible("PowerBook2,1")) | |
873 | chip->can_duplex = 0; | |
874 | } | |
875 | ||
876 | ||
877 | /* | |
878 | * detect a sound chip | |
879 | */ | |
880 | static int __init snd_pmac_detect(pmac_t *chip) | |
881 | { | |
882 | struct device_node *sound; | |
883 | unsigned int *prop, l; | |
884 | ||
885 | if (_machine != _MACH_Pmac) | |
886 | return -ENODEV; | |
887 | ||
888 | chip->subframe = 0; | |
889 | chip->revision = 0; | |
890 | chip->freqs_ok = 0xff; /* all ok */ | |
891 | chip->model = PMAC_AWACS; | |
892 | chip->can_byte_swap = 1; | |
893 | chip->can_duplex = 1; | |
894 | chip->can_capture = 1; | |
895 | chip->num_freqs = ARRAY_SIZE(awacs_freqs); | |
896 | chip->freq_table = awacs_freqs; | |
897 | ||
898 | chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ | |
899 | ||
900 | /* check machine type */ | |
901 | if (machine_is_compatible("AAPL,3400/2400") | |
902 | || machine_is_compatible("AAPL,3500")) | |
903 | chip->is_pbook_3400 = 1; | |
904 | else if (machine_is_compatible("PowerBook1,1") | |
905 | || machine_is_compatible("AAPL,PowerBook1998")) | |
906 | chip->is_pbook_G3 = 1; | |
907 | chip->node = find_devices("awacs"); | |
908 | if (chip->node) | |
909 | return 0; /* ok */ | |
910 | ||
911 | /* | |
912 | * powermac G3 models have a node called "davbus" | |
913 | * with a child called "sound". | |
914 | */ | |
915 | chip->node = find_devices("davbus"); | |
916 | /* | |
917 | * if we didn't find a davbus device, try 'i2s-a' since | |
918 | * this seems to be what iBooks have | |
919 | */ | |
920 | if (! chip->node) | |
921 | chip->node = find_devices("i2s-a"); | |
922 | if (! chip->node) | |
923 | return -ENODEV; | |
924 | sound = find_devices("sound"); | |
925 | while (sound && sound->parent != chip->node) | |
926 | sound = sound->next; | |
927 | if (! sound) | |
928 | return -ENODEV; | |
929 | prop = (unsigned int *) get_property(sound, "sub-frame", NULL); | |
930 | if (prop && *prop < 16) | |
931 | chip->subframe = *prop; | |
932 | /* This should be verified on older screamers */ | |
933 | if (device_is_compatible(sound, "screamer")) { | |
934 | chip->model = PMAC_SCREAMER; | |
935 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
936 | } | |
937 | if (device_is_compatible(sound, "burgundy")) { | |
938 | chip->model = PMAC_BURGUNDY; | |
939 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
940 | } | |
941 | if (device_is_compatible(sound, "daca")) { | |
942 | chip->model = PMAC_DACA; | |
943 | chip->can_capture = 0; /* no capture */ | |
944 | chip->can_duplex = 0; | |
945 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
946 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
947 | } | |
948 | if (device_is_compatible(sound, "tumbler")) { | |
949 | chip->model = PMAC_TUMBLER; | |
950 | chip->can_capture = 0; /* no capture */ | |
951 | chip->can_duplex = 0; | |
952 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
953 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
954 | chip->freq_table = tumbler_freqs; | |
955 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
956 | } | |
957 | if (device_is_compatible(sound, "snapper")) { | |
958 | chip->model = PMAC_SNAPPER; | |
959 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
960 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
961 | chip->freq_table = tumbler_freqs; | |
962 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
963 | } | |
964 | if (device_is_compatible(sound, "AOAKeylargo")) { | |
965 | /* Seems to support the stock AWACS frequencies, but has | |
966 | a snapper mixer */ | |
967 | chip->model = PMAC_SNAPPER; | |
968 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
969 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
970 | } | |
971 | prop = (unsigned int *)get_property(sound, "device-id", NULL); | |
972 | if (prop) | |
973 | chip->device_id = *prop; | |
974 | chip->has_iic = (find_devices("perch") != NULL); | |
975 | ||
976 | detect_byte_swap(chip); | |
977 | ||
978 | /* look for a property saying what sample rates | |
979 | are available */ | |
980 | prop = (unsigned int *) get_property(sound, "sample-rates", &l); | |
981 | if (! prop) | |
982 | prop = (unsigned int *) get_property(sound, "output-frame-rates", &l); | |
983 | if (prop) { | |
984 | int i; | |
985 | chip->freqs_ok = 0; | |
986 | for (l /= sizeof(int); l > 0; --l) { | |
987 | unsigned int r = *prop++; | |
988 | /* Apple 'Fixed' format */ | |
989 | if (r >= 0x10000) | |
990 | r >>= 16; | |
991 | for (i = 0; i < chip->num_freqs; ++i) { | |
992 | if (r == chip->freq_table[i]) { | |
993 | chip->freqs_ok |= (1 << i); | |
994 | break; | |
995 | } | |
996 | } | |
997 | } | |
998 | } else { | |
999 | /* assume only 44.1khz */ | |
1000 | chip->freqs_ok = 1; | |
1001 | } | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * exported - boolean info callbacks for ease of programming | |
1008 | */ | |
1009 | int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) | |
1010 | { | |
1011 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1012 | uinfo->count = 2; | |
1013 | uinfo->value.integer.min = 0; | |
1014 | uinfo->value.integer.max = 1; | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) | |
1019 | { | |
1020 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1021 | uinfo->count = 1; | |
1022 | uinfo->value.integer.min = 0; | |
1023 | uinfo->value.integer.max = 1; | |
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | #ifdef PMAC_SUPPORT_AUTOMUTE | |
1028 | /* | |
1029 | * auto-mute | |
1030 | */ | |
1031 | static int pmac_auto_mute_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1032 | { | |
1033 | pmac_t *chip = snd_kcontrol_chip(kcontrol); | |
1034 | ucontrol->value.integer.value[0] = chip->auto_mute; | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | static int pmac_auto_mute_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1039 | { | |
1040 | pmac_t *chip = snd_kcontrol_chip(kcontrol); | |
1041 | if (ucontrol->value.integer.value[0] != chip->auto_mute) { | |
1042 | chip->auto_mute = ucontrol->value.integer.value[0]; | |
1043 | if (chip->update_automute) | |
1044 | chip->update_automute(chip, 1); | |
1045 | return 1; | |
1046 | } | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static int pmac_hp_detect_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) | |
1051 | { | |
1052 | pmac_t *chip = snd_kcontrol_chip(kcontrol); | |
1053 | if (chip->detect_headphone) | |
1054 | ucontrol->value.integer.value[0] = chip->detect_headphone(chip); | |
1055 | else | |
1056 | ucontrol->value.integer.value[0] = 0; | |
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | static snd_kcontrol_new_t auto_mute_controls[] __initdata = { | |
1061 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1062 | .name = "Auto Mute Switch", | |
1063 | .info = snd_pmac_boolean_mono_info, | |
1064 | .get = pmac_auto_mute_get, | |
1065 | .put = pmac_auto_mute_put, | |
1066 | }, | |
1067 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1068 | .name = "Headphone Detection", | |
1069 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
1070 | .info = snd_pmac_boolean_mono_info, | |
1071 | .get = pmac_hp_detect_get, | |
1072 | }, | |
1073 | }; | |
1074 | ||
1075 | int __init snd_pmac_add_automute(pmac_t *chip) | |
1076 | { | |
1077 | int err; | |
1078 | chip->auto_mute = 1; | |
1079 | err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); | |
1080 | if (err < 0) | |
1081 | return err; | |
1082 | chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); | |
1083 | return snd_ctl_add(chip->card, chip->hp_detect_ctl); | |
1084 | } | |
1085 | #endif /* PMAC_SUPPORT_AUTOMUTE */ | |
1086 | ||
1087 | /* | |
1088 | * create and detect a pmac chip record | |
1089 | */ | |
1090 | int __init snd_pmac_new(snd_card_t *card, pmac_t **chip_return) | |
1091 | { | |
1092 | pmac_t *chip; | |
1093 | struct device_node *np; | |
1094 | int i, err; | |
1095 | static snd_device_ops_t ops = { | |
1096 | .dev_free = snd_pmac_dev_free, | |
1097 | }; | |
1098 | ||
1099 | snd_runtime_check(chip_return, return -EINVAL); | |
1100 | *chip_return = NULL; | |
1101 | ||
1102 | chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); | |
1103 | if (chip == NULL) | |
1104 | return -ENOMEM; | |
1105 | chip->card = card; | |
1106 | ||
1107 | spin_lock_init(&chip->reg_lock); | |
1108 | chip->irq = chip->tx_irq = chip->rx_irq = -1; | |
1109 | ||
1110 | chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
1111 | chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; | |
1112 | ||
1113 | if ((err = snd_pmac_detect(chip)) < 0) | |
1114 | goto __error; | |
1115 | ||
1116 | if (snd_pmac_dbdma_alloc(&chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || | |
1117 | snd_pmac_dbdma_alloc(&chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || | |
1118 | snd_pmac_dbdma_alloc(&chip->extra_dma, 2) < 0) { | |
1119 | err = -ENOMEM; | |
1120 | goto __error; | |
1121 | } | |
1122 | ||
1123 | np = chip->node; | |
1124 | if (np->n_addrs < 3 || np->n_intrs < 3) { | |
1125 | err = -ENODEV; | |
1126 | goto __error; | |
1127 | } | |
1128 | ||
1129 | for (i = 0; i < 3; i++) { | |
1130 | static char *name[3] = { NULL, "- Tx DMA", "- Rx DMA" }; | |
1131 | if (! request_OF_resource(np, i, name[i])) { | |
1132 | snd_printk(KERN_ERR "pmac: can't request resource %d!\n", i); | |
1133 | err = -ENODEV; | |
1134 | goto __error; | |
1135 | } | |
1136 | chip->of_requested |= (1 << i); | |
1137 | } | |
1138 | ||
1139 | chip->awacs = ioremap(np->addrs[0].address, 0x1000); | |
1140 | chip->playback.dma = ioremap(np->addrs[1].address, 0x100); | |
1141 | chip->capture.dma = ioremap(np->addrs[2].address, 0x100); | |
1142 | if (chip->model <= PMAC_BURGUNDY) { | |
1143 | if (request_irq(np->intrs[0].line, snd_pmac_ctrl_intr, 0, | |
1144 | "PMac", (void*)chip)) { | |
1145 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[0].line); | |
1146 | err = -EBUSY; | |
1147 | goto __error; | |
1148 | } | |
1149 | chip->irq = np->intrs[0].line; | |
1150 | } | |
1151 | if (request_irq(np->intrs[1].line, snd_pmac_tx_intr, 0, | |
1152 | "PMac Output", (void*)chip)) { | |
1153 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[1].line); | |
1154 | err = -EBUSY; | |
1155 | goto __error; | |
1156 | } | |
1157 | chip->tx_irq = np->intrs[1].line; | |
1158 | if (request_irq(np->intrs[2].line, snd_pmac_rx_intr, 0, | |
1159 | "PMac Input", (void*)chip)) { | |
1160 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[2].line); | |
1161 | err = -EBUSY; | |
1162 | goto __error; | |
1163 | } | |
1164 | chip->rx_irq = np->intrs[2].line; | |
1165 | ||
1166 | snd_pmac_sound_feature(chip, 1); | |
1167 | ||
1168 | /* reset */ | |
1169 | out_le32(&chip->awacs->control, 0x11); | |
1170 | ||
1171 | /* Powerbooks have odd ways of enabling inputs such as | |
1172 | an expansion-bay CD or sound from an internal modem | |
1173 | or a PC-card modem. */ | |
1174 | if (chip->is_pbook_3400) { | |
1175 | /* Enable CD and PC-card sound inputs. */ | |
1176 | /* This is done by reading from address | |
1177 | * f301a000, + 0x10 to enable the expansion-bay | |
1178 | * CD sound input, + 0x80 to enable the PC-card | |
1179 | * sound input. The 0x100 enables the SCSI bus | |
1180 | * terminator power. | |
1181 | */ | |
1182 | chip->latch_base = ioremap (0xf301a000, 0x1000); | |
1183 | in_8(chip->latch_base + 0x190); | |
1184 | } else if (chip->is_pbook_G3) { | |
1185 | struct device_node* mio; | |
1186 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
1187 | if (strcmp(mio->name, "mac-io") == 0 | |
1188 | && mio->n_addrs > 0) { | |
1189 | chip->macio_base = ioremap(mio->addrs[0].address, 0x40); | |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | /* Enable CD sound input. */ | |
1194 | /* The relevant bits for writing to this byte are 0x8f. | |
1195 | * I haven't found out what the 0x80 bit does. | |
1196 | * For the 0xf bits, writing 3 or 7 enables the CD | |
1197 | * input, any other value disables it. Values | |
1198 | * 1, 3, 5, 7 enable the microphone. Values 0, 2, | |
1199 | * 4, 6, 8 - f enable the input from the modem. | |
1200 | */ | |
1201 | if (chip->macio_base) | |
1202 | out_8(chip->macio_base + 0x37, 3); | |
1203 | } | |
1204 | ||
1205 | /* Reset dbdma channels */ | |
1206 | snd_pmac_dbdma_reset(chip); | |
1207 | ||
1208 | #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK) | |
1209 | /* add sleep notifier */ | |
1210 | if (! snd_pmac_register_sleep_notifier(chip)) | |
1211 | snd_card_set_pm_callback(chip->card, snd_pmac_suspend, snd_pmac_resume, chip); | |
1212 | #endif | |
1213 | ||
1214 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) | |
1215 | goto __error; | |
1216 | ||
1217 | *chip_return = chip; | |
1218 | return 0; | |
1219 | ||
1220 | __error: | |
1221 | snd_pmac_free(chip); | |
1222 | return err; | |
1223 | } | |
1224 | ||
1225 | ||
1226 | /* | |
1227 | * sleep notify for powerbook | |
1228 | */ | |
1229 | ||
1230 | #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK) | |
1231 | ||
1232 | /* | |
1233 | * Save state when going to sleep, restore it afterwards. | |
1234 | */ | |
1235 | ||
1236 | static int snd_pmac_suspend(snd_card_t *card, pm_message_t state) | |
1237 | { | |
1238 | pmac_t *chip = card->pm_private_data; | |
1239 | unsigned long flags; | |
1240 | ||
1241 | if (chip->suspend) | |
1242 | chip->suspend(chip); | |
1243 | snd_pcm_suspend_all(chip->pcm); | |
1244 | spin_lock_irqsave(&chip->reg_lock, flags); | |
1245 | snd_pmac_beep_stop(chip); | |
1246 | spin_unlock_irqrestore(&chip->reg_lock, flags); | |
1247 | if (chip->irq >= 0) | |
1248 | disable_irq(chip->irq); | |
1249 | if (chip->tx_irq >= 0) | |
1250 | disable_irq(chip->tx_irq); | |
1251 | if (chip->rx_irq >= 0) | |
1252 | disable_irq(chip->rx_irq); | |
1253 | snd_pmac_sound_feature(chip, 0); | |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | static int snd_pmac_resume(snd_card_t *card) | |
1258 | { | |
1259 | pmac_t *chip = card->pm_private_data; | |
1260 | ||
1261 | snd_pmac_sound_feature(chip, 1); | |
1262 | if (chip->resume) | |
1263 | chip->resume(chip); | |
1264 | /* enable CD sound input */ | |
1265 | if (chip->macio_base && chip->is_pbook_G3) { | |
1266 | out_8(chip->macio_base + 0x37, 3); | |
1267 | } else if (chip->is_pbook_3400) { | |
1268 | in_8(chip->latch_base + 0x190); | |
1269 | } | |
1270 | ||
1271 | snd_pmac_pcm_set_format(chip); | |
1272 | ||
1273 | if (chip->irq >= 0) | |
1274 | enable_irq(chip->irq); | |
1275 | if (chip->tx_irq >= 0) | |
1276 | enable_irq(chip->tx_irq); | |
1277 | if (chip->rx_irq >= 0) | |
1278 | enable_irq(chip->rx_irq); | |
1279 | ||
1280 | return 0; | |
1281 | } | |
1282 | ||
1283 | /* the chip is stored statically by snd_pmac_register_sleep_notifier | |
1284 | * because we can't have any private data for notify callback. | |
1285 | */ | |
1286 | static pmac_t *sleeping_pmac = NULL; | |
1287 | ||
1288 | static int snd_pmac_sleep_notify(struct pmu_sleep_notifier *self, int when) | |
1289 | { | |
1290 | pmac_t *chip; | |
1291 | ||
1292 | chip = sleeping_pmac; | |
1293 | snd_runtime_check(chip, return 0); | |
1294 | ||
1295 | switch (when) { | |
1296 | case PBOOK_SLEEP_NOW: | |
1297 | snd_pmac_suspend(chip->card, PMSG_SUSPEND); | |
1298 | break; | |
1299 | case PBOOK_WAKE: | |
1300 | snd_pmac_resume(chip->card); | |
1301 | break; | |
1302 | } | |
1303 | return PBOOK_SLEEP_OK; | |
1304 | } | |
1305 | ||
1306 | static struct pmu_sleep_notifier snd_pmac_sleep_notifier = { | |
1307 | snd_pmac_sleep_notify, SLEEP_LEVEL_SOUND, | |
1308 | }; | |
1309 | ||
1310 | static int __init snd_pmac_register_sleep_notifier(pmac_t *chip) | |
1311 | { | |
1312 | /* should be protected here.. */ | |
1313 | snd_assert(! sleeping_pmac, return -EBUSY); | |
1314 | sleeping_pmac = chip; | |
1315 | pmu_register_sleep_notifier(&snd_pmac_sleep_notifier); | |
1316 | return 0; | |
1317 | } | |
1318 | ||
1319 | static int snd_pmac_unregister_sleep_notifier(pmac_t *chip) | |
1320 | { | |
1321 | /* should be protected here.. */ | |
1322 | snd_assert(sleeping_pmac == chip, return -ENODEV); | |
1323 | pmu_unregister_sleep_notifier(&snd_pmac_sleep_notifier); | |
1324 | sleeping_pmac = NULL; | |
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | #endif /* CONFIG_PM && CONFIG_PMAC_PBOOK */ |