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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 | ||
1da177e4 LT |
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> | |
7bbd8277 BH |
29 | #include <linux/pci.h> |
30 | #include <linux/dma-mapping.h> | |
5af50730 RH |
31 | #include <linux/of_address.h> |
32 | #include <linux/of_irq.h> | |
1da177e4 LT |
33 | #include <sound/core.h> |
34 | #include "pmac.h" | |
35 | #include <sound/pcm_params.h> | |
1da177e4 | 36 | #include <asm/pmac_feature.h> |
7bbd8277 | 37 | #include <asm/pci-bridge.h> |
1da177e4 LT |
38 | |
39 | ||
1da177e4 LT |
40 | /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ |
41 | static int awacs_freqs[8] = { | |
42 | 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 | |
43 | }; | |
44 | /* fixed frequency table for tumbler */ | |
45 | static int tumbler_freqs[1] = { | |
46 | 44100 | |
47 | }; | |
48 | ||
e70515dd H |
49 | |
50 | /* | |
51 | * we will allocate a single 'emergency' dbdma cmd block to use if the | |
52 | * tx status comes up "DEAD". This happens on some PowerComputing Pmac | |
53 | * clones, either owing to a bug in dbdma or some interaction between | |
54 | * IDE and sound. However, this measure would deal with DEAD status if | |
55 | * it appeared elsewhere. | |
56 | */ | |
57 | static struct pmac_dbdma emergency_dbdma; | |
58 | static int emergency_in_use; | |
59 | ||
60 | ||
1da177e4 LT |
61 | /* |
62 | * allocate DBDMA command arrays | |
63 | */ | |
65b29f50 | 64 | static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size) |
1da177e4 | 65 | { |
7bbd8277 BH |
66 | unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1); |
67 | ||
68 | rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize, | |
69 | &rec->dma_base, GFP_KERNEL); | |
1da177e4 LT |
70 | if (rec->space == NULL) |
71 | return -ENOMEM; | |
72 | rec->size = size; | |
7bbd8277 | 73 | memset(rec->space, 0, rsize); |
1da177e4 | 74 | rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); |
7bbd8277 BH |
75 | rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space); |
76 | ||
1da177e4 LT |
77 | return 0; |
78 | } | |
79 | ||
65b29f50 | 80 | static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec) |
1da177e4 | 81 | { |
367636e8 | 82 | if (rec->space) { |
7bbd8277 BH |
83 | unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1); |
84 | ||
85 | dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base); | |
86 | } | |
1da177e4 LT |
87 | } |
88 | ||
89 | ||
90 | /* | |
91 | * pcm stuff | |
92 | */ | |
93 | ||
94 | /* | |
95 | * look up frequency table | |
96 | */ | |
97 | ||
65b29f50 | 98 | unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate) |
1da177e4 LT |
99 | { |
100 | int i, ok, found; | |
101 | ||
102 | ok = rec->cur_freqs; | |
103 | if (rate > chip->freq_table[0]) | |
104 | return 0; | |
105 | found = 0; | |
106 | for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { | |
107 | if (! (ok & 1)) continue; | |
108 | found = i; | |
109 | if (rate >= chip->freq_table[i]) | |
110 | break; | |
111 | } | |
112 | return found; | |
113 | } | |
114 | ||
115 | /* | |
116 | * check whether another stream is active | |
117 | */ | |
118 | static inline int another_stream(int stream) | |
119 | { | |
120 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
121 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
122 | } | |
123 | ||
124 | /* | |
125 | * allocate buffers | |
126 | */ | |
65b29f50 TI |
127 | static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs, |
128 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 LT |
129 | { |
130 | return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); | |
131 | } | |
132 | ||
133 | /* | |
134 | * release buffers | |
135 | */ | |
65b29f50 | 136 | static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) |
1da177e4 LT |
137 | { |
138 | snd_pcm_lib_free_pages(subs); | |
139 | return 0; | |
140 | } | |
141 | ||
142 | /* | |
143 | * get a stream of the opposite direction | |
144 | */ | |
65b29f50 | 145 | static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream) |
1da177e4 LT |
146 | { |
147 | switch (stream) { | |
148 | case SNDRV_PCM_STREAM_PLAYBACK: | |
149 | return &chip->playback; | |
150 | case SNDRV_PCM_STREAM_CAPTURE: | |
151 | return &chip->capture; | |
152 | default: | |
153 | snd_BUG(); | |
154 | return NULL; | |
155 | } | |
156 | } | |
157 | ||
158 | /* | |
159 | * wait while run status is on | |
160 | */ | |
77933d72 | 161 | static inline void |
65b29f50 | 162 | snd_pmac_wait_ack(struct pmac_stream *rec) |
1da177e4 LT |
163 | { |
164 | int timeout = 50000; | |
165 | while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) | |
166 | udelay(1); | |
167 | } | |
168 | ||
169 | /* | |
170 | * set the format and rate to the chip. | |
171 | * call the lowlevel function if defined (e.g. for AWACS). | |
172 | */ | |
65b29f50 | 173 | static void snd_pmac_pcm_set_format(struct snd_pmac *chip) |
1da177e4 LT |
174 | { |
175 | /* set up frequency and format */ | |
176 | out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); | |
177 | out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); | |
178 | if (chip->set_format) | |
179 | chip->set_format(chip); | |
180 | } | |
181 | ||
182 | /* | |
183 | * stop the DMA transfer | |
184 | */ | |
65b29f50 | 185 | static inline void snd_pmac_dma_stop(struct pmac_stream *rec) |
1da177e4 LT |
186 | { |
187 | out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); | |
188 | snd_pmac_wait_ack(rec); | |
189 | } | |
190 | ||
191 | /* | |
192 | * set the command pointer address | |
193 | */ | |
65b29f50 | 194 | static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd) |
1da177e4 LT |
195 | { |
196 | out_le32(&rec->dma->cmdptr, cmd->addr); | |
197 | } | |
198 | ||
199 | /* | |
200 | * start the DMA | |
201 | */ | |
65b29f50 | 202 | static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status) |
1da177e4 LT |
203 | { |
204 | out_le32(&rec->dma->control, status | (status << 16)); | |
205 | } | |
206 | ||
207 | ||
208 | /* | |
209 | * prepare playback/capture stream | |
210 | */ | |
65b29f50 | 211 | static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs) |
1da177e4 LT |
212 | { |
213 | int i; | |
214 | volatile struct dbdma_cmd __iomem *cp; | |
65b29f50 | 215 | struct snd_pcm_runtime *runtime = subs->runtime; |
1da177e4 LT |
216 | int rate_index; |
217 | long offset; | |
65b29f50 | 218 | struct pmac_stream *astr; |
946cda7d | 219 | |
1da177e4 LT |
220 | rec->dma_size = snd_pcm_lib_buffer_bytes(subs); |
221 | rec->period_size = snd_pcm_lib_period_bytes(subs); | |
222 | rec->nperiods = rec->dma_size / rec->period_size; | |
223 | rec->cur_period = 0; | |
224 | rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); | |
225 | ||
226 | /* set up constraints */ | |
227 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
7c22f1aa TI |
228 | if (! astr) |
229 | return -EINVAL; | |
1da177e4 LT |
230 | astr->cur_freqs = 1 << rate_index; |
231 | astr->cur_formats = 1 << runtime->format; | |
232 | chip->rate_index = rate_index; | |
233 | chip->format = runtime->format; | |
234 | ||
235 | /* We really want to execute a DMA stop command, after the AWACS | |
236 | * is initialized. | |
237 | * For reasons I don't understand, it stops the hissing noise | |
238 | * common to many PowerBook G3 systems and random noise otherwise | |
239 | * captured on iBook2's about every third time. -ReneR | |
240 | */ | |
241 | spin_lock_irq(&chip->reg_lock); | |
242 | snd_pmac_dma_stop(rec); | |
243 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); | |
244 | snd_pmac_dma_set_command(rec, &chip->extra_dma); | |
245 | snd_pmac_dma_run(rec, RUN); | |
246 | spin_unlock_irq(&chip->reg_lock); | |
247 | mdelay(5); | |
248 | spin_lock_irq(&chip->reg_lock); | |
249 | /* continuous DMA memory type doesn't provide the physical address, | |
250 | * so we need to resolve the address here... | |
251 | */ | |
7bbd8277 | 252 | offset = runtime->dma_addr; |
1da177e4 LT |
253 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { |
254 | st_le32(&cp->phy_addr, offset); | |
255 | st_le16(&cp->req_count, rec->period_size); | |
256 | /*st_le16(&cp->res_count, 0);*/ | |
257 | st_le16(&cp->xfer_status, 0); | |
258 | offset += rec->period_size; | |
259 | } | |
260 | /* make loop */ | |
261 | st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); | |
262 | st_le32(&cp->cmd_dep, rec->cmd.addr); | |
263 | ||
264 | snd_pmac_dma_stop(rec); | |
265 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
266 | spin_unlock_irq(&chip->reg_lock); | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
271 | ||
272 | /* | |
273 | * PCM trigger/stop | |
274 | */ | |
65b29f50 TI |
275 | static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec, |
276 | struct snd_pcm_substream *subs, int cmd) | |
1da177e4 LT |
277 | { |
278 | volatile struct dbdma_cmd __iomem *cp; | |
279 | int i, command; | |
280 | ||
281 | switch (cmd) { | |
282 | case SNDRV_PCM_TRIGGER_START: | |
283 | case SNDRV_PCM_TRIGGER_RESUME: | |
284 | if (rec->running) | |
285 | return -EBUSY; | |
286 | command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? | |
287 | OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; | |
288 | spin_lock(&chip->reg_lock); | |
289 | snd_pmac_beep_stop(chip); | |
290 | snd_pmac_pcm_set_format(chip); | |
291 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
292 | out_le16(&cp->command, command); | |
293 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
294 | (void)in_le32(&rec->dma->status); | |
295 | snd_pmac_dma_run(rec, RUN|WAKE); | |
296 | rec->running = 1; | |
297 | spin_unlock(&chip->reg_lock); | |
298 | break; | |
299 | ||
300 | case SNDRV_PCM_TRIGGER_STOP: | |
301 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
302 | spin_lock(&chip->reg_lock); | |
303 | rec->running = 0; | |
6da67113 | 304 | /*printk(KERN_DEBUG "stopped!!\n");*/ |
1da177e4 LT |
305 | snd_pmac_dma_stop(rec); |
306 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
307 | out_le16(&cp->command, DBDMA_STOP); | |
308 | spin_unlock(&chip->reg_lock); | |
309 | break; | |
310 | ||
311 | default: | |
312 | return -EINVAL; | |
313 | } | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | /* | |
319 | * return the current pointer | |
320 | */ | |
321 | inline | |
65b29f50 TI |
322 | static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip, |
323 | struct pmac_stream *rec, | |
324 | struct snd_pcm_substream *subs) | |
1da177e4 LT |
325 | { |
326 | int count = 0; | |
327 | ||
328 | #if 1 /* hmm.. how can we get the current dma pointer?? */ | |
329 | int stat; | |
330 | volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; | |
331 | stat = ld_le16(&cp->xfer_status); | |
332 | if (stat & (ACTIVE|DEAD)) { | |
333 | count = in_le16(&cp->res_count); | |
334 | if (count) | |
335 | count = rec->period_size - count; | |
336 | } | |
337 | #endif | |
338 | count += rec->cur_period * rec->period_size; | |
6da67113 | 339 | /*printk(KERN_DEBUG "pointer=%d\n", count);*/ |
1da177e4 LT |
340 | return bytes_to_frames(subs->runtime, count); |
341 | } | |
342 | ||
343 | /* | |
344 | * playback | |
345 | */ | |
346 | ||
65b29f50 | 347 | static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs) |
1da177e4 | 348 | { |
65b29f50 | 349 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
350 | return snd_pmac_pcm_prepare(chip, &chip->playback, subs); |
351 | } | |
352 | ||
65b29f50 | 353 | static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs, |
1da177e4 LT |
354 | int cmd) |
355 | { | |
65b29f50 | 356 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
357 | return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); |
358 | } | |
359 | ||
65b29f50 | 360 | static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs) |
1da177e4 | 361 | { |
65b29f50 | 362 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
363 | return snd_pmac_pcm_pointer(chip, &chip->playback, subs); |
364 | } | |
365 | ||
366 | ||
367 | /* | |
368 | * capture | |
369 | */ | |
370 | ||
65b29f50 | 371 | static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs) |
1da177e4 | 372 | { |
65b29f50 | 373 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
374 | return snd_pmac_pcm_prepare(chip, &chip->capture, subs); |
375 | } | |
376 | ||
65b29f50 | 377 | static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs, |
1da177e4 LT |
378 | int cmd) |
379 | { | |
65b29f50 | 380 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
381 | return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); |
382 | } | |
383 | ||
65b29f50 | 384 | static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs) |
1da177e4 | 385 | { |
65b29f50 | 386 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
387 | return snd_pmac_pcm_pointer(chip, &chip->capture, subs); |
388 | } | |
389 | ||
390 | ||
e70515dd H |
391 | /* |
392 | * Handle DEAD DMA transfers: | |
393 | * if the TX status comes up "DEAD" - reported on some Power Computing machines | |
394 | * we need to re-start the dbdma - but from a different physical start address | |
395 | * and with a different transfer length. It would get very messy to do this | |
396 | * with the normal dbdma_cmd blocks - we would have to re-write the buffer start | |
397 | * addresses each time. So, we will keep a single dbdma_cmd block which can be | |
398 | * fiddled with. | |
399 | * When DEAD status is first reported the content of the faulted dbdma block is | |
400 | * copied into the emergency buffer and we note that the buffer is in use. | |
401 | * we then bump the start physical address by the amount that was successfully | |
402 | * output before it died. | |
403 | * On any subsequent DEAD result we just do the bump-ups (we know that we are | |
404 | * already using the emergency dbdma_cmd). | |
405 | * CHECK: this just tries to "do it". It is possible that we should abandon | |
406 | * xfers when the number of residual bytes gets below a certain value - I can | |
407 | * see that this might cause a loop-forever if a too small transfer causes | |
408 | * DEAD status. However this is a TODO for now - we'll see what gets reported. | |
409 | * When we get a successful transfer result with the emergency buffer we just | |
410 | * pretend that it completed using the original dmdma_cmd and carry on. The | |
411 | * 'next_cmd' field will already point back to the original loop of blocks. | |
412 | */ | |
413 | static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec, | |
414 | volatile struct dbdma_cmd __iomem *cp) | |
415 | { | |
416 | unsigned short req, res ; | |
417 | unsigned int phy ; | |
418 | ||
419 | /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */ | |
420 | ||
421 | /* to clear DEAD status we must first clear RUN | |
422 | set it to quiescent to be on the safe side */ | |
423 | (void)in_le32(&rec->dma->status); | |
424 | out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); | |
425 | ||
426 | if (!emergency_in_use) { /* new problem */ | |
427 | memcpy((void *)emergency_dbdma.cmds, (void *)cp, | |
428 | sizeof(struct dbdma_cmd)); | |
429 | emergency_in_use = 1; | |
430 | st_le16(&cp->xfer_status, 0); | |
431 | st_le16(&cp->req_count, rec->period_size); | |
432 | cp = emergency_dbdma.cmds; | |
433 | } | |
434 | ||
435 | /* now bump the values to reflect the amount | |
436 | we haven't yet shifted */ | |
437 | req = ld_le16(&cp->req_count); | |
438 | res = ld_le16(&cp->res_count); | |
439 | phy = ld_le32(&cp->phy_addr); | |
440 | phy += (req - res); | |
441 | st_le16(&cp->req_count, res); | |
442 | st_le16(&cp->res_count, 0); | |
443 | st_le16(&cp->xfer_status, 0); | |
444 | st_le32(&cp->phy_addr, phy); | |
445 | ||
446 | st_le32(&cp->cmd_dep, rec->cmd.addr | |
447 | + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods)); | |
448 | ||
449 | st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS); | |
450 | ||
451 | /* point at our patched up command block */ | |
452 | out_le32(&rec->dma->cmdptr, emergency_dbdma.addr); | |
453 | ||
454 | /* we must re-start the controller */ | |
455 | (void)in_le32(&rec->dma->status); | |
456 | /* should complete clearing the DEAD status */ | |
457 | out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); | |
458 | } | |
459 | ||
1da177e4 LT |
460 | /* |
461 | * update playback/capture pointer from interrupts | |
462 | */ | |
65b29f50 | 463 | static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec) |
1da177e4 LT |
464 | { |
465 | volatile struct dbdma_cmd __iomem *cp; | |
466 | int c; | |
467 | int stat; | |
468 | ||
469 | spin_lock(&chip->reg_lock); | |
470 | if (rec->running) { | |
1da177e4 | 471 | for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ |
e70515dd H |
472 | |
473 | if (emergency_in_use) /* already using DEAD xfer? */ | |
474 | cp = emergency_dbdma.cmds; | |
475 | else | |
476 | cp = &rec->cmd.cmds[rec->cur_period]; | |
477 | ||
1da177e4 | 478 | stat = ld_le16(&cp->xfer_status); |
e70515dd H |
479 | |
480 | if (stat & DEAD) { | |
481 | snd_pmac_pcm_dead_xfer(rec, cp); | |
482 | break; /* this block is still going */ | |
483 | } | |
484 | ||
485 | if (emergency_in_use) | |
486 | emergency_in_use = 0 ; /* done that */ | |
487 | ||
1da177e4 LT |
488 | if (! (stat & ACTIVE)) |
489 | break; | |
e70515dd | 490 | |
6da67113 | 491 | /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/ |
1da177e4 LT |
492 | st_le16(&cp->xfer_status, 0); |
493 | st_le16(&cp->req_count, rec->period_size); | |
494 | /*st_le16(&cp->res_count, 0);*/ | |
495 | rec->cur_period++; | |
496 | if (rec->cur_period >= rec->nperiods) { | |
497 | rec->cur_period = 0; | |
e70515dd H |
498 | } |
499 | ||
1da177e4 LT |
500 | spin_unlock(&chip->reg_lock); |
501 | snd_pcm_period_elapsed(rec->substream); | |
502 | spin_lock(&chip->reg_lock); | |
503 | } | |
504 | } | |
505 | spin_unlock(&chip->reg_lock); | |
506 | } | |
507 | ||
508 | ||
509 | /* | |
510 | * hw info | |
511 | */ | |
512 | ||
65b29f50 | 513 | static struct snd_pcm_hardware snd_pmac_playback = |
1da177e4 LT |
514 | { |
515 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
516 | SNDRV_PCM_INFO_MMAP | | |
517 | SNDRV_PCM_INFO_MMAP_VALID | | |
518 | SNDRV_PCM_INFO_RESUME), | |
519 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
520 | .rates = SNDRV_PCM_RATE_8000_44100, | |
521 | .rate_min = 7350, | |
522 | .rate_max = 44100, | |
523 | .channels_min = 2, | |
524 | .channels_max = 2, | |
525 | .buffer_bytes_max = 131072, | |
526 | .period_bytes_min = 256, | |
527 | .period_bytes_max = 16384, | |
528 | .periods_min = 3, | |
529 | .periods_max = PMAC_MAX_FRAGS, | |
530 | }; | |
531 | ||
65b29f50 | 532 | static struct snd_pcm_hardware snd_pmac_capture = |
1da177e4 LT |
533 | { |
534 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
535 | SNDRV_PCM_INFO_MMAP | | |
536 | SNDRV_PCM_INFO_MMAP_VALID | | |
537 | SNDRV_PCM_INFO_RESUME), | |
538 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
539 | .rates = SNDRV_PCM_RATE_8000_44100, | |
540 | .rate_min = 7350, | |
541 | .rate_max = 44100, | |
542 | .channels_min = 2, | |
543 | .channels_max = 2, | |
544 | .buffer_bytes_max = 131072, | |
545 | .period_bytes_min = 256, | |
546 | .period_bytes_max = 16384, | |
547 | .periods_min = 3, | |
548 | .periods_max = PMAC_MAX_FRAGS, | |
549 | }; | |
550 | ||
551 | ||
552 | #if 0 // NYI | |
65b29f50 TI |
553 | static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params, |
554 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 555 | { |
65b29f50 TI |
556 | struct snd_pmac *chip = rule->private; |
557 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
1da177e4 LT |
558 | int i, freq_table[8], num_freqs; |
559 | ||
7c22f1aa TI |
560 | if (! rec) |
561 | return -EINVAL; | |
1da177e4 LT |
562 | num_freqs = 0; |
563 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
564 | if (rec->cur_freqs & (1 << i)) | |
565 | freq_table[num_freqs++] = chip->freq_table[i]; | |
566 | } | |
567 | ||
568 | return snd_interval_list(hw_param_interval(params, rule->var), | |
569 | num_freqs, freq_table, 0); | |
570 | } | |
571 | ||
65b29f50 TI |
572 | static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params, |
573 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 574 | { |
65b29f50 TI |
575 | struct snd_pmac *chip = rule->private; |
576 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
1da177e4 | 577 | |
7c22f1aa TI |
578 | if (! rec) |
579 | return -EINVAL; | |
1da177e4 LT |
580 | return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), |
581 | rec->cur_formats); | |
582 | } | |
583 | #endif // NYI | |
584 | ||
65b29f50 TI |
585 | static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec, |
586 | struct snd_pcm_substream *subs) | |
1da177e4 | 587 | { |
65b29f50 | 588 | struct snd_pcm_runtime *runtime = subs->runtime; |
918f3a0e | 589 | int i; |
1da177e4 LT |
590 | |
591 | /* look up frequency table and fill bit mask */ | |
592 | runtime->hw.rates = 0; | |
918f3a0e CL |
593 | for (i = 0; i < chip->num_freqs; i++) |
594 | if (chip->freqs_ok & (1 << i)) | |
595 | runtime->hw.rates |= | |
596 | snd_pcm_rate_to_rate_bit(chip->freq_table[i]); | |
1da177e4 LT |
597 | |
598 | /* check for minimum and maximum rates */ | |
599 | for (i = 0; i < chip->num_freqs; i++) { | |
600 | if (chip->freqs_ok & (1 << i)) { | |
601 | runtime->hw.rate_max = chip->freq_table[i]; | |
602 | break; | |
603 | } | |
604 | } | |
605 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
606 | if (chip->freqs_ok & (1 << i)) { | |
607 | runtime->hw.rate_min = chip->freq_table[i]; | |
608 | break; | |
609 | } | |
610 | } | |
611 | runtime->hw.formats = chip->formats_ok; | |
612 | if (chip->can_capture) { | |
613 | if (! chip->can_duplex) | |
614 | runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; | |
615 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
616 | } | |
617 | runtime->private_data = rec; | |
618 | rec->substream = subs; | |
619 | ||
620 | #if 0 /* FIXME: still under development.. */ | |
621 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
622 | snd_pmac_hw_rule_rate, chip, rec->stream, -1); | |
623 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, | |
624 | snd_pmac_hw_rule_format, chip, rec->stream, -1); | |
625 | #endif | |
626 | ||
627 | runtime->hw.periods_max = rec->cmd.size - 1; | |
628 | ||
1da177e4 LT |
629 | /* constraints to fix choppy sound */ |
630 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
631 | return 0; | |
632 | } | |
633 | ||
65b29f50 TI |
634 | static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec, |
635 | struct snd_pcm_substream *subs) | |
1da177e4 | 636 | { |
65b29f50 | 637 | struct pmac_stream *astr; |
1da177e4 LT |
638 | |
639 | snd_pmac_dma_stop(rec); | |
640 | ||
641 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
7c22f1aa TI |
642 | if (! astr) |
643 | return -EINVAL; | |
1da177e4 LT |
644 | |
645 | /* reset constraints */ | |
646 | astr->cur_freqs = chip->freqs_ok; | |
647 | astr->cur_formats = chip->formats_ok; | |
946cda7d | 648 | |
1da177e4 LT |
649 | return 0; |
650 | } | |
651 | ||
65b29f50 | 652 | static int snd_pmac_playback_open(struct snd_pcm_substream *subs) |
1da177e4 | 653 | { |
65b29f50 | 654 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
655 | |
656 | subs->runtime->hw = snd_pmac_playback; | |
657 | return snd_pmac_pcm_open(chip, &chip->playback, subs); | |
658 | } | |
659 | ||
65b29f50 | 660 | static int snd_pmac_capture_open(struct snd_pcm_substream *subs) |
1da177e4 | 661 | { |
65b29f50 | 662 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
663 | |
664 | subs->runtime->hw = snd_pmac_capture; | |
665 | return snd_pmac_pcm_open(chip, &chip->capture, subs); | |
666 | } | |
667 | ||
65b29f50 | 668 | static int snd_pmac_playback_close(struct snd_pcm_substream *subs) |
1da177e4 | 669 | { |
65b29f50 | 670 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
671 | |
672 | return snd_pmac_pcm_close(chip, &chip->playback, subs); | |
673 | } | |
674 | ||
65b29f50 | 675 | static int snd_pmac_capture_close(struct snd_pcm_substream *subs) |
1da177e4 | 676 | { |
65b29f50 | 677 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
678 | |
679 | return snd_pmac_pcm_close(chip, &chip->capture, subs); | |
680 | } | |
681 | ||
682 | /* | |
683 | */ | |
684 | ||
65b29f50 | 685 | static struct snd_pcm_ops snd_pmac_playback_ops = { |
1da177e4 LT |
686 | .open = snd_pmac_playback_open, |
687 | .close = snd_pmac_playback_close, | |
688 | .ioctl = snd_pcm_lib_ioctl, | |
689 | .hw_params = snd_pmac_pcm_hw_params, | |
690 | .hw_free = snd_pmac_pcm_hw_free, | |
691 | .prepare = snd_pmac_playback_prepare, | |
692 | .trigger = snd_pmac_playback_trigger, | |
693 | .pointer = snd_pmac_playback_pointer, | |
694 | }; | |
695 | ||
65b29f50 | 696 | static struct snd_pcm_ops snd_pmac_capture_ops = { |
1da177e4 LT |
697 | .open = snd_pmac_capture_open, |
698 | .close = snd_pmac_capture_close, | |
699 | .ioctl = snd_pcm_lib_ioctl, | |
700 | .hw_params = snd_pmac_pcm_hw_params, | |
701 | .hw_free = snd_pmac_pcm_hw_free, | |
702 | .prepare = snd_pmac_capture_prepare, | |
703 | .trigger = snd_pmac_capture_trigger, | |
704 | .pointer = snd_pmac_capture_pointer, | |
705 | }; | |
706 | ||
15afafc2 | 707 | int snd_pmac_pcm_new(struct snd_pmac *chip) |
1da177e4 | 708 | { |
65b29f50 | 709 | struct snd_pcm *pcm; |
1da177e4 LT |
710 | int err; |
711 | int num_captures = 1; | |
712 | ||
713 | if (! chip->can_capture) | |
714 | num_captures = 0; | |
715 | err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); | |
716 | if (err < 0) | |
717 | return err; | |
718 | ||
719 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); | |
720 | if (chip->can_capture) | |
721 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); | |
722 | ||
723 | pcm->private_data = chip; | |
1da177e4 LT |
724 | pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; |
725 | strcpy(pcm->name, chip->card->shortname); | |
726 | chip->pcm = pcm; | |
727 | ||
728 | chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; | |
729 | if (chip->can_byte_swap) | |
730 | chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; | |
731 | ||
732 | chip->playback.cur_formats = chip->formats_ok; | |
733 | chip->capture.cur_formats = chip->formats_ok; | |
734 | chip->playback.cur_freqs = chip->freqs_ok; | |
735 | chip->capture.cur_freqs = chip->freqs_ok; | |
736 | ||
737 | /* preallocate 64k buffer */ | |
7bbd8277 BH |
738 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
739 | &chip->pdev->dev, | |
1da177e4 LT |
740 | 64 * 1024, 64 * 1024); |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | ||
65b29f50 | 746 | static void snd_pmac_dbdma_reset(struct snd_pmac *chip) |
1da177e4 LT |
747 | { |
748 | out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
749 | snd_pmac_wait_ack(&chip->playback); | |
750 | out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
751 | snd_pmac_wait_ack(&chip->capture); | |
752 | } | |
753 | ||
754 | ||
755 | /* | |
756 | * handling beep | |
757 | */ | |
65b29f50 | 758 | void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed) |
1da177e4 | 759 | { |
65b29f50 | 760 | struct pmac_stream *rec = &chip->playback; |
1da177e4 LT |
761 | |
762 | snd_pmac_dma_stop(rec); | |
763 | st_le16(&chip->extra_dma.cmds->req_count, bytes); | |
764 | st_le16(&chip->extra_dma.cmds->xfer_status, 0); | |
765 | st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr); | |
766 | st_le32(&chip->extra_dma.cmds->phy_addr, addr); | |
767 | st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS); | |
768 | out_le32(&chip->awacs->control, | |
769 | (in_le32(&chip->awacs->control) & ~0x1f00) | |
770 | | (speed << 8)); | |
771 | out_le32(&chip->awacs->byteswap, 0); | |
772 | snd_pmac_dma_set_command(rec, &chip->extra_dma); | |
773 | snd_pmac_dma_run(rec, RUN); | |
774 | } | |
775 | ||
65b29f50 | 776 | void snd_pmac_beep_dma_stop(struct snd_pmac *chip) |
1da177e4 LT |
777 | { |
778 | snd_pmac_dma_stop(&chip->playback); | |
779 | st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); | |
780 | snd_pmac_pcm_set_format(chip); /* reset format */ | |
781 | } | |
782 | ||
783 | ||
784 | /* | |
785 | * interrupt handlers | |
786 | */ | |
787 | static irqreturn_t | |
7d12e780 | 788 | snd_pmac_tx_intr(int irq, void *devid) |
1da177e4 | 789 | { |
65b29f50 | 790 | struct snd_pmac *chip = devid; |
1da177e4 LT |
791 | snd_pmac_pcm_update(chip, &chip->playback); |
792 | return IRQ_HANDLED; | |
793 | } | |
794 | ||
795 | ||
796 | static irqreturn_t | |
7d12e780 | 797 | snd_pmac_rx_intr(int irq, void *devid) |
1da177e4 | 798 | { |
65b29f50 | 799 | struct snd_pmac *chip = devid; |
1da177e4 LT |
800 | snd_pmac_pcm_update(chip, &chip->capture); |
801 | return IRQ_HANDLED; | |
802 | } | |
803 | ||
804 | ||
805 | static irqreturn_t | |
7d12e780 | 806 | snd_pmac_ctrl_intr(int irq, void *devid) |
1da177e4 | 807 | { |
65b29f50 | 808 | struct snd_pmac *chip = devid; |
1da177e4 LT |
809 | int ctrl = in_le32(&chip->awacs->control); |
810 | ||
6da67113 | 811 | /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/ |
1da177e4 LT |
812 | if (ctrl & MASK_PORTCHG) { |
813 | /* do something when headphone is plugged/unplugged? */ | |
814 | if (chip->update_automute) | |
815 | chip->update_automute(chip, 1); | |
816 | } | |
817 | if (ctrl & MASK_CNTLERR) { | |
818 | int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; | |
819 | if (err && chip->model <= PMAC_SCREAMER) | |
820 | snd_printk(KERN_DEBUG "error %x\n", err); | |
821 | } | |
822 | /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ | |
823 | out_le32(&chip->awacs->control, ctrl); | |
824 | return IRQ_HANDLED; | |
825 | } | |
826 | ||
827 | ||
828 | /* | |
829 | * a wrapper to feature call for compatibility | |
830 | */ | |
65b29f50 | 831 | static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable) |
1da177e4 | 832 | { |
4e6a06ee DW |
833 | if (ppc_md.feature_call) |
834 | ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); | |
1da177e4 | 835 | } |
1da177e4 LT |
836 | |
837 | /* | |
838 | * release resources | |
839 | */ | |
840 | ||
65b29f50 | 841 | static int snd_pmac_free(struct snd_pmac *chip) |
1da177e4 | 842 | { |
1da177e4 LT |
843 | /* stop sounds */ |
844 | if (chip->initialized) { | |
845 | snd_pmac_dbdma_reset(chip); | |
846 | /* disable interrupts from awacs interface */ | |
847 | out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); | |
848 | } | |
849 | ||
41e904de BH |
850 | if (chip->node) |
851 | snd_pmac_sound_feature(chip, 0); | |
1da177e4 LT |
852 | |
853 | /* clean up mixer if any */ | |
854 | if (chip->mixer_free) | |
855 | chip->mixer_free(chip); | |
856 | ||
857 | snd_pmac_detach_beep(chip); | |
858 | ||
859 | /* release resources */ | |
860 | if (chip->irq >= 0) | |
861 | free_irq(chip->irq, (void*)chip); | |
862 | if (chip->tx_irq >= 0) | |
863 | free_irq(chip->tx_irq, (void*)chip); | |
864 | if (chip->rx_irq >= 0) | |
865 | free_irq(chip->rx_irq, (void*)chip); | |
7bbd8277 BH |
866 | snd_pmac_dbdma_free(chip, &chip->playback.cmd); |
867 | snd_pmac_dbdma_free(chip, &chip->capture.cmd); | |
868 | snd_pmac_dbdma_free(chip, &chip->extra_dma); | |
e70515dd | 869 | snd_pmac_dbdma_free(chip, &emergency_dbdma); |
1da177e4 LT |
870 | if (chip->macio_base) |
871 | iounmap(chip->macio_base); | |
872 | if (chip->latch_base) | |
873 | iounmap(chip->latch_base); | |
874 | if (chip->awacs) | |
875 | iounmap(chip->awacs); | |
876 | if (chip->playback.dma) | |
877 | iounmap(chip->playback.dma); | |
878 | if (chip->capture.dma) | |
879 | iounmap(chip->capture.dma); | |
cc5d0189 | 880 | |
1da177e4 | 881 | if (chip->node) { |
7bbd8277 | 882 | int i; |
1da177e4 | 883 | for (i = 0; i < 3; i++) { |
cc5d0189 BH |
884 | if (chip->requested & (1 << i)) |
885 | release_mem_region(chip->rsrc[i].start, | |
28f65c11 | 886 | resource_size(&chip->rsrc[i])); |
1da177e4 LT |
887 | } |
888 | } | |
cc5d0189 | 889 | |
7bbd8277 BH |
890 | if (chip->pdev) |
891 | pci_dev_put(chip->pdev); | |
30686ba6 | 892 | of_node_put(chip->node); |
1da177e4 LT |
893 | kfree(chip); |
894 | return 0; | |
895 | } | |
896 | ||
897 | ||
898 | /* | |
899 | * free the device | |
900 | */ | |
65b29f50 | 901 | static int snd_pmac_dev_free(struct snd_device *device) |
1da177e4 | 902 | { |
65b29f50 | 903 | struct snd_pmac *chip = device->device_data; |
1da177e4 LT |
904 | return snd_pmac_free(chip); |
905 | } | |
906 | ||
907 | ||
908 | /* | |
909 | * check the machine support byteswap (little-endian) | |
910 | */ | |
911 | ||
15afafc2 | 912 | static void detect_byte_swap(struct snd_pmac *chip) |
1da177e4 LT |
913 | { |
914 | struct device_node *mio; | |
915 | ||
916 | /* if seems that Keylargo can't byte-swap */ | |
917 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
918 | if (strcmp(mio->name, "mac-io") == 0) { | |
55b61fec | 919 | if (of_device_is_compatible(mio, "Keylargo")) |
1da177e4 LT |
920 | chip->can_byte_swap = 0; |
921 | break; | |
922 | } | |
923 | } | |
924 | ||
925 | /* it seems the Pismo & iBook can't byte-swap in hardware. */ | |
71a157e8 GL |
926 | if (of_machine_is_compatible("PowerBook3,1") || |
927 | of_machine_is_compatible("PowerBook2,1")) | |
1da177e4 LT |
928 | chip->can_byte_swap = 0 ; |
929 | ||
71a157e8 | 930 | if (of_machine_is_compatible("PowerBook2,1")) |
1da177e4 LT |
931 | chip->can_duplex = 0; |
932 | } | |
933 | ||
934 | ||
935 | /* | |
936 | * detect a sound chip | |
937 | */ | |
15afafc2 | 938 | static int snd_pmac_detect(struct snd_pmac *chip) |
1da177e4 | 939 | { |
30686ba6 SR |
940 | struct device_node *sound; |
941 | struct device_node *dn; | |
c4f55b39 SR |
942 | const unsigned int *prop; |
943 | unsigned int l; | |
7bbd8277 BH |
944 | struct macio_chip* macio; |
945 | ||
e8222502 | 946 | if (!machine_is(powermac)) |
1da177e4 LT |
947 | return -ENODEV; |
948 | ||
949 | chip->subframe = 0; | |
950 | chip->revision = 0; | |
951 | chip->freqs_ok = 0xff; /* all ok */ | |
952 | chip->model = PMAC_AWACS; | |
953 | chip->can_byte_swap = 1; | |
954 | chip->can_duplex = 1; | |
955 | chip->can_capture = 1; | |
956 | chip->num_freqs = ARRAY_SIZE(awacs_freqs); | |
957 | chip->freq_table = awacs_freqs; | |
367636e8 | 958 | chip->pdev = NULL; |
1da177e4 LT |
959 | |
960 | chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ | |
961 | ||
962 | /* check machine type */ | |
71a157e8 GL |
963 | if (of_machine_is_compatible("AAPL,3400/2400") |
964 | || of_machine_is_compatible("AAPL,3500")) | |
1da177e4 | 965 | chip->is_pbook_3400 = 1; |
71a157e8 GL |
966 | else if (of_machine_is_compatible("PowerBook1,1") |
967 | || of_machine_is_compatible("AAPL,PowerBook1998")) | |
1da177e4 | 968 | chip->is_pbook_G3 = 1; |
30686ba6 SR |
969 | chip->node = of_find_node_by_name(NULL, "awacs"); |
970 | sound = of_node_get(chip->node); | |
1da177e4 LT |
971 | |
972 | /* | |
973 | * powermac G3 models have a node called "davbus" | |
974 | * with a child called "sound". | |
975 | */ | |
5218064c | 976 | if (!chip->node) |
30686ba6 | 977 | chip->node = of_find_node_by_name(NULL, "davbus"); |
1da177e4 LT |
978 | /* |
979 | * if we didn't find a davbus device, try 'i2s-a' since | |
980 | * this seems to be what iBooks have | |
981 | */ | |
7bbd8277 | 982 | if (! chip->node) { |
30686ba6 | 983 | chip->node = of_find_node_by_name(NULL, "i2s-a"); |
5218064c BH |
984 | if (chip->node && chip->node->parent && |
985 | chip->node->parent->parent) { | |
55b61fec | 986 | if (of_device_is_compatible(chip->node->parent->parent, |
7bbd8277 BH |
987 | "K2-Keylargo")) |
988 | chip->is_k2 = 1; | |
989 | } | |
990 | } | |
1da177e4 LT |
991 | if (! chip->node) |
992 | return -ENODEV; | |
7bbd8277 | 993 | |
5218064c | 994 | if (!sound) { |
ccdb8ed3 GL |
995 | for_each_node_by_name(sound, "sound") |
996 | if (sound->parent == chip->node) | |
997 | break; | |
5218064c | 998 | } |
30686ba6 SR |
999 | if (! sound) { |
1000 | of_node_put(chip->node); | |
41e904de | 1001 | chip->node = NULL; |
1da177e4 | 1002 | return -ENODEV; |
30686ba6 | 1003 | } |
c4f55b39 | 1004 | prop = of_get_property(sound, "sub-frame", NULL); |
1da177e4 LT |
1005 | if (prop && *prop < 16) |
1006 | chip->subframe = *prop; | |
c4f55b39 | 1007 | prop = of_get_property(sound, "layout-id", NULL); |
55c385ad JB |
1008 | if (prop) { |
1009 | /* partly deprecate snd-powermac, for those machines | |
1010 | * that have a layout-id property for now */ | |
1011 | printk(KERN_INFO "snd-powermac no longer handles any " | |
1012 | "machines with a layout-id property " | |
1013 | "in the device-tree, use snd-aoa.\n"); | |
41e904de | 1014 | of_node_put(sound); |
30686ba6 | 1015 | of_node_put(chip->node); |
41e904de | 1016 | chip->node = NULL; |
55c385ad JB |
1017 | return -ENODEV; |
1018 | } | |
1da177e4 | 1019 | /* This should be verified on older screamers */ |
55b61fec | 1020 | if (of_device_is_compatible(sound, "screamer")) { |
1da177e4 LT |
1021 | chip->model = PMAC_SCREAMER; |
1022 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1023 | } | |
55b61fec | 1024 | if (of_device_is_compatible(sound, "burgundy")) { |
1da177e4 LT |
1025 | chip->model = PMAC_BURGUNDY; |
1026 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1027 | } | |
55b61fec | 1028 | if (of_device_is_compatible(sound, "daca")) { |
1da177e4 LT |
1029 | chip->model = PMAC_DACA; |
1030 | chip->can_capture = 0; /* no capture */ | |
1031 | chip->can_duplex = 0; | |
1032 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1033 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1034 | } | |
55b61fec | 1035 | if (of_device_is_compatible(sound, "tumbler")) { |
1da177e4 | 1036 | chip->model = PMAC_TUMBLER; |
71a157e8 | 1037 | chip->can_capture = of_machine_is_compatible("PowerMac4,2") |
8460ae70 RS |
1038 | || of_machine_is_compatible("PowerBook3,2") |
1039 | || of_machine_is_compatible("PowerBook3,3") | |
1040 | || of_machine_is_compatible("PowerBook4,1") | |
1041 | || of_machine_is_compatible("PowerBook4,2") | |
1042 | || of_machine_is_compatible("PowerBook4,3"); | |
1da177e4 LT |
1043 | chip->can_duplex = 0; |
1044 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1045 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
1046 | chip->freq_table = tumbler_freqs; | |
1047 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1048 | } | |
55b61fec | 1049 | if (of_device_is_compatible(sound, "snapper")) { |
1da177e4 LT |
1050 | chip->model = PMAC_SNAPPER; |
1051 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1052 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
1053 | chip->freq_table = tumbler_freqs; | |
1054 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1055 | } | |
c4f55b39 | 1056 | prop = of_get_property(sound, "device-id", NULL); |
1da177e4 LT |
1057 | if (prop) |
1058 | chip->device_id = *prop; | |
30686ba6 SR |
1059 | dn = of_find_node_by_name(NULL, "perch"); |
1060 | chip->has_iic = (dn != NULL); | |
1061 | of_node_put(dn); | |
1da177e4 | 1062 | |
7bbd8277 BH |
1063 | /* We need the PCI device for DMA allocations, let's use a crude method |
1064 | * for now ... | |
1065 | */ | |
1066 | macio = macio_find(chip->node, macio_unknown); | |
1067 | if (macio == NULL) | |
1068 | printk(KERN_WARNING "snd-powermac: can't locate macio !\n"); | |
1069 | else { | |
1070 | struct pci_dev *pdev = NULL; | |
1071 | ||
1072 | for_each_pci_dev(pdev) { | |
1073 | struct device_node *np = pci_device_to_OF_node(pdev); | |
1074 | if (np && np == macio->of_node) { | |
1075 | chip->pdev = pdev; | |
1076 | break; | |
1077 | } | |
1078 | } | |
1079 | } | |
1080 | if (chip->pdev == NULL) | |
5218064c BH |
1081 | printk(KERN_WARNING "snd-powermac: can't locate macio PCI" |
1082 | " device !\n"); | |
7bbd8277 | 1083 | |
1da177e4 LT |
1084 | detect_byte_swap(chip); |
1085 | ||
1086 | /* look for a property saying what sample rates | |
1087 | are available */ | |
c4f55b39 | 1088 | prop = of_get_property(sound, "sample-rates", &l); |
1da177e4 | 1089 | if (! prop) |
c4f55b39 | 1090 | prop = of_get_property(sound, "output-frame-rates", &l); |
1da177e4 LT |
1091 | if (prop) { |
1092 | int i; | |
1093 | chip->freqs_ok = 0; | |
1094 | for (l /= sizeof(int); l > 0; --l) { | |
1095 | unsigned int r = *prop++; | |
1096 | /* Apple 'Fixed' format */ | |
1097 | if (r >= 0x10000) | |
1098 | r >>= 16; | |
1099 | for (i = 0; i < chip->num_freqs; ++i) { | |
1100 | if (r == chip->freq_table[i]) { | |
1101 | chip->freqs_ok |= (1 << i); | |
1102 | break; | |
1103 | } | |
1104 | } | |
1105 | } | |
1106 | } else { | |
1107 | /* assume only 44.1khz */ | |
1108 | chip->freqs_ok = 1; | |
1109 | } | |
1110 | ||
30686ba6 | 1111 | of_node_put(sound); |
1da177e4 LT |
1112 | return 0; |
1113 | } | |
1114 | ||
1da177e4 LT |
1115 | #ifdef PMAC_SUPPORT_AUTOMUTE |
1116 | /* | |
1117 | * auto-mute | |
1118 | */ | |
65b29f50 TI |
1119 | static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol, |
1120 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1121 | { |
65b29f50 | 1122 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1123 | ucontrol->value.integer.value[0] = chip->auto_mute; |
1124 | return 0; | |
1125 | } | |
1126 | ||
65b29f50 TI |
1127 | static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol, |
1128 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1129 | { |
65b29f50 | 1130 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 | 1131 | if (ucontrol->value.integer.value[0] != chip->auto_mute) { |
d4079ac4 | 1132 | chip->auto_mute = !!ucontrol->value.integer.value[0]; |
1da177e4 LT |
1133 | if (chip->update_automute) |
1134 | chip->update_automute(chip, 1); | |
1135 | return 1; | |
1136 | } | |
1137 | return 0; | |
1138 | } | |
1139 | ||
65b29f50 TI |
1140 | static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol, |
1141 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1142 | { |
65b29f50 | 1143 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1144 | if (chip->detect_headphone) |
1145 | ucontrol->value.integer.value[0] = chip->detect_headphone(chip); | |
1146 | else | |
1147 | ucontrol->value.integer.value[0] = 0; | |
1148 | return 0; | |
1149 | } | |
1150 | ||
15afafc2 | 1151 | static struct snd_kcontrol_new auto_mute_controls[] = { |
1da177e4 LT |
1152 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1153 | .name = "Auto Mute Switch", | |
1154 | .info = snd_pmac_boolean_mono_info, | |
1155 | .get = pmac_auto_mute_get, | |
1156 | .put = pmac_auto_mute_put, | |
1157 | }, | |
1158 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1159 | .name = "Headphone Detection", | |
1160 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
1161 | .info = snd_pmac_boolean_mono_info, | |
1162 | .get = pmac_hp_detect_get, | |
1163 | }, | |
1164 | }; | |
1165 | ||
15afafc2 | 1166 | int snd_pmac_add_automute(struct snd_pmac *chip) |
1da177e4 LT |
1167 | { |
1168 | int err; | |
1169 | chip->auto_mute = 1; | |
1170 | err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); | |
7bbd8277 BH |
1171 | if (err < 0) { |
1172 | printk(KERN_ERR "snd-powermac: Failed to add automute control\n"); | |
1da177e4 | 1173 | return err; |
7bbd8277 | 1174 | } |
1da177e4 LT |
1175 | chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); |
1176 | return snd_ctl_add(chip->card, chip->hp_detect_ctl); | |
1177 | } | |
1178 | #endif /* PMAC_SUPPORT_AUTOMUTE */ | |
1179 | ||
1180 | /* | |
1181 | * create and detect a pmac chip record | |
1182 | */ | |
15afafc2 | 1183 | int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return) |
1da177e4 | 1184 | { |
65b29f50 | 1185 | struct snd_pmac *chip; |
1da177e4 LT |
1186 | struct device_node *np; |
1187 | int i, err; | |
0ebfff14 | 1188 | unsigned int irq; |
7bbd8277 | 1189 | unsigned long ctrl_addr, txdma_addr, rxdma_addr; |
65b29f50 | 1190 | static struct snd_device_ops ops = { |
1da177e4 LT |
1191 | .dev_free = snd_pmac_dev_free, |
1192 | }; | |
1193 | ||
1da177e4 LT |
1194 | *chip_return = NULL; |
1195 | ||
561b220a | 1196 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
1da177e4 LT |
1197 | if (chip == NULL) |
1198 | return -ENOMEM; | |
1199 | chip->card = card; | |
1200 | ||
1201 | spin_lock_init(&chip->reg_lock); | |
1202 | chip->irq = chip->tx_irq = chip->rx_irq = -1; | |
1203 | ||
1204 | chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
1205 | chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; | |
1206 | ||
1207 | if ((err = snd_pmac_detect(chip)) < 0) | |
1208 | goto __error; | |
1209 | ||
7bbd8277 BH |
1210 | if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || |
1211 | snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || | |
e70515dd H |
1212 | snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 || |
1213 | snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) { | |
1da177e4 LT |
1214 | err = -ENOMEM; |
1215 | goto __error; | |
1216 | } | |
1217 | ||
1218 | np = chip->node; | |
cc5d0189 | 1219 | chip->requested = 0; |
7bbd8277 | 1220 | if (chip->is_k2) { |
cc5d0189 BH |
1221 | static char *rnames[] = { |
1222 | "Sound Control", "Sound DMA" }; | |
cc5d0189 BH |
1223 | for (i = 0; i < 2; i ++) { |
1224 | if (of_address_to_resource(np->parent, i, | |
1225 | &chip->rsrc[i])) { | |
1226 | printk(KERN_ERR "snd: can't translate rsrc " | |
1227 | " %d (%s)\n", i, rnames[i]); | |
1228 | err = -ENODEV; | |
1229 | goto __error; | |
1230 | } | |
1231 | if (request_mem_region(chip->rsrc[i].start, | |
28f65c11 | 1232 | resource_size(&chip->rsrc[i]), |
cc5d0189 BH |
1233 | rnames[i]) == NULL) { |
1234 | printk(KERN_ERR "snd: can't request rsrc " | |
2fb50f13 JP |
1235 | " %d (%s: %pR)\n", |
1236 | i, rnames[i], &chip->rsrc[i]); | |
7bbd8277 BH |
1237 | err = -ENODEV; |
1238 | goto __error; | |
1239 | } | |
cc5d0189 | 1240 | chip->requested |= (1 << i); |
7bbd8277 | 1241 | } |
cc5d0189 BH |
1242 | ctrl_addr = chip->rsrc[0].start; |
1243 | txdma_addr = chip->rsrc[1].start; | |
1244 | rxdma_addr = txdma_addr + 0x100; | |
7bbd8277 | 1245 | } else { |
cc5d0189 BH |
1246 | static char *rnames[] = { |
1247 | "Sound Control", "Sound Tx DMA", "Sound Rx DMA" }; | |
cc5d0189 | 1248 | for (i = 0; i < 3; i ++) { |
88356e90 | 1249 | if (of_address_to_resource(np, i, |
cc5d0189 BH |
1250 | &chip->rsrc[i])) { |
1251 | printk(KERN_ERR "snd: can't translate rsrc " | |
1252 | " %d (%s)\n", i, rnames[i]); | |
1253 | err = -ENODEV; | |
1254 | goto __error; | |
1255 | } | |
1256 | if (request_mem_region(chip->rsrc[i].start, | |
28f65c11 | 1257 | resource_size(&chip->rsrc[i]), |
cc5d0189 BH |
1258 | rnames[i]) == NULL) { |
1259 | printk(KERN_ERR "snd: can't request rsrc " | |
2fb50f13 JP |
1260 | " %d (%s: %pR)\n", |
1261 | i, rnames[i], &chip->rsrc[i]); | |
7bbd8277 BH |
1262 | err = -ENODEV; |
1263 | goto __error; | |
1264 | } | |
cc5d0189 | 1265 | chip->requested |= (1 << i); |
7bbd8277 | 1266 | } |
cc5d0189 BH |
1267 | ctrl_addr = chip->rsrc[0].start; |
1268 | txdma_addr = chip->rsrc[1].start; | |
1269 | rxdma_addr = chip->rsrc[2].start; | |
1da177e4 LT |
1270 | } |
1271 | ||
7bbd8277 BH |
1272 | chip->awacs = ioremap(ctrl_addr, 0x1000); |
1273 | chip->playback.dma = ioremap(txdma_addr, 0x100); | |
1274 | chip->capture.dma = ioremap(rxdma_addr, 0x100); | |
1da177e4 | 1275 | if (chip->model <= PMAC_BURGUNDY) { |
0ebfff14 BH |
1276 | irq = irq_of_parse_and_map(np, 0); |
1277 | if (request_irq(irq, snd_pmac_ctrl_intr, 0, | |
1da177e4 | 1278 | "PMac", (void*)chip)) { |
0ebfff14 BH |
1279 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", |
1280 | irq); | |
1da177e4 LT |
1281 | err = -EBUSY; |
1282 | goto __error; | |
1283 | } | |
0ebfff14 | 1284 | chip->irq = irq; |
1da177e4 | 1285 | } |
0ebfff14 BH |
1286 | irq = irq_of_parse_and_map(np, 1); |
1287 | if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){ | |
1288 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); | |
1da177e4 LT |
1289 | err = -EBUSY; |
1290 | goto __error; | |
1291 | } | |
0ebfff14 BH |
1292 | chip->tx_irq = irq; |
1293 | irq = irq_of_parse_and_map(np, 2); | |
1294 | if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) { | |
1295 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); | |
1da177e4 LT |
1296 | err = -EBUSY; |
1297 | goto __error; | |
1298 | } | |
0ebfff14 | 1299 | chip->rx_irq = irq; |
1da177e4 LT |
1300 | |
1301 | snd_pmac_sound_feature(chip, 1); | |
1302 | ||
9a4f20fc RS |
1303 | /* reset & enable interrupts */ |
1304 | if (chip->model <= PMAC_BURGUNDY) | |
1305 | out_le32(&chip->awacs->control, chip->control_mask); | |
1da177e4 LT |
1306 | |
1307 | /* Powerbooks have odd ways of enabling inputs such as | |
1308 | an expansion-bay CD or sound from an internal modem | |
1309 | or a PC-card modem. */ | |
1310 | if (chip->is_pbook_3400) { | |
1311 | /* Enable CD and PC-card sound inputs. */ | |
1312 | /* This is done by reading from address | |
1313 | * f301a000, + 0x10 to enable the expansion-bay | |
1314 | * CD sound input, + 0x80 to enable the PC-card | |
1315 | * sound input. The 0x100 enables the SCSI bus | |
1316 | * terminator power. | |
1317 | */ | |
1318 | chip->latch_base = ioremap (0xf301a000, 0x1000); | |
1319 | in_8(chip->latch_base + 0x190); | |
1320 | } else if (chip->is_pbook_G3) { | |
1321 | struct device_node* mio; | |
1322 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
cc5d0189 BH |
1323 | if (strcmp(mio->name, "mac-io") == 0) { |
1324 | struct resource r; | |
1325 | if (of_address_to_resource(mio, 0, &r) == 0) | |
1326 | chip->macio_base = | |
1327 | ioremap(r.start, 0x40); | |
1da177e4 LT |
1328 | break; |
1329 | } | |
1330 | } | |
1331 | /* Enable CD sound input. */ | |
1332 | /* The relevant bits for writing to this byte are 0x8f. | |
1333 | * I haven't found out what the 0x80 bit does. | |
1334 | * For the 0xf bits, writing 3 or 7 enables the CD | |
1335 | * input, any other value disables it. Values | |
1336 | * 1, 3, 5, 7 enable the microphone. Values 0, 2, | |
1337 | * 4, 6, 8 - f enable the input from the modem. | |
1338 | */ | |
1339 | if (chip->macio_base) | |
1340 | out_8(chip->macio_base + 0x37, 3); | |
1341 | } | |
1342 | ||
1343 | /* Reset dbdma channels */ | |
1344 | snd_pmac_dbdma_reset(chip); | |
1345 | ||
1da177e4 LT |
1346 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) |
1347 | goto __error; | |
1348 | ||
1349 | *chip_return = chip; | |
1350 | return 0; | |
1351 | ||
1352 | __error: | |
1353 | snd_pmac_free(chip); | |
1354 | return err; | |
1355 | } | |
1356 | ||
1357 | ||
1358 | /* | |
1359 | * sleep notify for powerbook | |
1360 | */ | |
1361 | ||
8c870933 | 1362 | #ifdef CONFIG_PM |
1da177e4 LT |
1363 | |
1364 | /* | |
1365 | * Save state when going to sleep, restore it afterwards. | |
1366 | */ | |
1367 | ||
5e12bea0 | 1368 | void snd_pmac_suspend(struct snd_pmac *chip) |
1da177e4 | 1369 | { |
1da177e4 LT |
1370 | unsigned long flags; |
1371 | ||
5e12bea0 | 1372 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); |
1da177e4 LT |
1373 | if (chip->suspend) |
1374 | chip->suspend(chip); | |
1375 | snd_pcm_suspend_all(chip->pcm); | |
1376 | spin_lock_irqsave(&chip->reg_lock, flags); | |
1377 | snd_pmac_beep_stop(chip); | |
1378 | spin_unlock_irqrestore(&chip->reg_lock, flags); | |
1379 | if (chip->irq >= 0) | |
1380 | disable_irq(chip->irq); | |
1381 | if (chip->tx_irq >= 0) | |
1382 | disable_irq(chip->tx_irq); | |
1383 | if (chip->rx_irq >= 0) | |
1384 | disable_irq(chip->rx_irq); | |
1385 | snd_pmac_sound_feature(chip, 0); | |
1da177e4 LT |
1386 | } |
1387 | ||
5e12bea0 | 1388 | void snd_pmac_resume(struct snd_pmac *chip) |
1da177e4 | 1389 | { |
1da177e4 LT |
1390 | snd_pmac_sound_feature(chip, 1); |
1391 | if (chip->resume) | |
1392 | chip->resume(chip); | |
1393 | /* enable CD sound input */ | |
5e12bea0 | 1394 | if (chip->macio_base && chip->is_pbook_G3) |
1da177e4 | 1395 | out_8(chip->macio_base + 0x37, 3); |
5e12bea0 | 1396 | else if (chip->is_pbook_3400) |
1da177e4 | 1397 | in_8(chip->latch_base + 0x190); |
1da177e4 LT |
1398 | |
1399 | snd_pmac_pcm_set_format(chip); | |
1400 | ||
1401 | if (chip->irq >= 0) | |
1402 | enable_irq(chip->irq); | |
1403 | if (chip->tx_irq >= 0) | |
1404 | enable_irq(chip->tx_irq); | |
1405 | if (chip->rx_irq >= 0) | |
1406 | enable_irq(chip->rx_irq); | |
1407 | ||
5e12bea0 | 1408 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); |
1da177e4 LT |
1409 | } |
1410 | ||
8c870933 BH |
1411 | #endif /* CONFIG_PM */ |
1412 |