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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * PMac DBDMA lowlevel functions | |
4 | * | |
5 | * Copyright (c) by Takashi Iwai <tiwai@suse.de> | |
6 | * code based on dmasound.c. | |
1da177e4 LT |
7 | */ |
8 | ||
9 | ||
6cbbfe1c | 10 | #include <linux/io.h> |
1da177e4 LT |
11 | #include <asm/irq.h> |
12 | #include <linux/init.h> | |
13 | #include <linux/delay.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/interrupt.h> | |
7bbd8277 BH |
16 | #include <linux/pci.h> |
17 | #include <linux/dma-mapping.h> | |
5af50730 RH |
18 | #include <linux/of_address.h> |
19 | #include <linux/of_irq.h> | |
1da177e4 LT |
20 | #include <sound/core.h> |
21 | #include "pmac.h" | |
22 | #include <sound/pcm_params.h> | |
1da177e4 | 23 | #include <asm/pmac_feature.h> |
1da177e4 LT |
24 | |
25 | ||
1da177e4 LT |
26 | /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ |
27 | static int awacs_freqs[8] = { | |
28 | 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 | |
29 | }; | |
30 | /* fixed frequency table for tumbler */ | |
31 | static int tumbler_freqs[1] = { | |
32 | 44100 | |
33 | }; | |
34 | ||
e70515dd H |
35 | |
36 | /* | |
37 | * we will allocate a single 'emergency' dbdma cmd block to use if the | |
38 | * tx status comes up "DEAD". This happens on some PowerComputing Pmac | |
39 | * clones, either owing to a bug in dbdma or some interaction between | |
40 | * IDE and sound. However, this measure would deal with DEAD status if | |
41 | * it appeared elsewhere. | |
42 | */ | |
43 | static struct pmac_dbdma emergency_dbdma; | |
44 | static int emergency_in_use; | |
45 | ||
46 | ||
1da177e4 LT |
47 | /* |
48 | * allocate DBDMA command arrays | |
49 | */ | |
65b29f50 | 50 | static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size) |
1da177e4 | 51 | { |
7bbd8277 BH |
52 | unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1); |
53 | ||
54 | rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize, | |
55 | &rec->dma_base, GFP_KERNEL); | |
1da177e4 LT |
56 | if (rec->space == NULL) |
57 | return -ENOMEM; | |
58 | rec->size = size; | |
7bbd8277 | 59 | memset(rec->space, 0, rsize); |
1da177e4 | 60 | rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); |
7bbd8277 BH |
61 | rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space); |
62 | ||
1da177e4 LT |
63 | return 0; |
64 | } | |
65 | ||
65b29f50 | 66 | static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec) |
1da177e4 | 67 | { |
367636e8 | 68 | if (rec->space) { |
7bbd8277 BH |
69 | unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1); |
70 | ||
71 | dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base); | |
72 | } | |
1da177e4 LT |
73 | } |
74 | ||
75 | ||
76 | /* | |
77 | * pcm stuff | |
78 | */ | |
79 | ||
80 | /* | |
81 | * look up frequency table | |
82 | */ | |
83 | ||
65b29f50 | 84 | unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate) |
1da177e4 LT |
85 | { |
86 | int i, ok, found; | |
87 | ||
88 | ok = rec->cur_freqs; | |
89 | if (rate > chip->freq_table[0]) | |
90 | return 0; | |
91 | found = 0; | |
92 | for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { | |
93 | if (! (ok & 1)) continue; | |
94 | found = i; | |
95 | if (rate >= chip->freq_table[i]) | |
96 | break; | |
97 | } | |
98 | return found; | |
99 | } | |
100 | ||
101 | /* | |
102 | * check whether another stream is active | |
103 | */ | |
104 | static inline int another_stream(int stream) | |
105 | { | |
106 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
107 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
108 | } | |
109 | ||
110 | /* | |
111 | * allocate buffers | |
112 | */ | |
65b29f50 TI |
113 | static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs, |
114 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 LT |
115 | { |
116 | return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); | |
117 | } | |
118 | ||
119 | /* | |
120 | * release buffers | |
121 | */ | |
65b29f50 | 122 | static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) |
1da177e4 LT |
123 | { |
124 | snd_pcm_lib_free_pages(subs); | |
125 | return 0; | |
126 | } | |
127 | ||
128 | /* | |
129 | * get a stream of the opposite direction | |
130 | */ | |
65b29f50 | 131 | static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream) |
1da177e4 LT |
132 | { |
133 | switch (stream) { | |
134 | case SNDRV_PCM_STREAM_PLAYBACK: | |
135 | return &chip->playback; | |
136 | case SNDRV_PCM_STREAM_CAPTURE: | |
137 | return &chip->capture; | |
138 | default: | |
139 | snd_BUG(); | |
140 | return NULL; | |
141 | } | |
142 | } | |
143 | ||
144 | /* | |
145 | * wait while run status is on | |
146 | */ | |
77933d72 | 147 | static inline void |
65b29f50 | 148 | snd_pmac_wait_ack(struct pmac_stream *rec) |
1da177e4 LT |
149 | { |
150 | int timeout = 50000; | |
151 | while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) | |
152 | udelay(1); | |
153 | } | |
154 | ||
155 | /* | |
156 | * set the format and rate to the chip. | |
157 | * call the lowlevel function if defined (e.g. for AWACS). | |
158 | */ | |
65b29f50 | 159 | static void snd_pmac_pcm_set_format(struct snd_pmac *chip) |
1da177e4 LT |
160 | { |
161 | /* set up frequency and format */ | |
162 | out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); | |
163 | out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); | |
164 | if (chip->set_format) | |
165 | chip->set_format(chip); | |
166 | } | |
167 | ||
168 | /* | |
169 | * stop the DMA transfer | |
170 | */ | |
65b29f50 | 171 | static inline void snd_pmac_dma_stop(struct pmac_stream *rec) |
1da177e4 LT |
172 | { |
173 | out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); | |
174 | snd_pmac_wait_ack(rec); | |
175 | } | |
176 | ||
177 | /* | |
178 | * set the command pointer address | |
179 | */ | |
65b29f50 | 180 | static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd) |
1da177e4 LT |
181 | { |
182 | out_le32(&rec->dma->cmdptr, cmd->addr); | |
183 | } | |
184 | ||
185 | /* | |
186 | * start the DMA | |
187 | */ | |
65b29f50 | 188 | static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status) |
1da177e4 LT |
189 | { |
190 | out_le32(&rec->dma->control, status | (status << 16)); | |
191 | } | |
192 | ||
193 | ||
194 | /* | |
195 | * prepare playback/capture stream | |
196 | */ | |
65b29f50 | 197 | static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs) |
1da177e4 LT |
198 | { |
199 | int i; | |
200 | volatile struct dbdma_cmd __iomem *cp; | |
65b29f50 | 201 | struct snd_pcm_runtime *runtime = subs->runtime; |
1da177e4 LT |
202 | int rate_index; |
203 | long offset; | |
65b29f50 | 204 | struct pmac_stream *astr; |
946cda7d | 205 | |
1da177e4 LT |
206 | rec->dma_size = snd_pcm_lib_buffer_bytes(subs); |
207 | rec->period_size = snd_pcm_lib_period_bytes(subs); | |
208 | rec->nperiods = rec->dma_size / rec->period_size; | |
209 | rec->cur_period = 0; | |
210 | rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); | |
211 | ||
212 | /* set up constraints */ | |
213 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
7c22f1aa TI |
214 | if (! astr) |
215 | return -EINVAL; | |
1da177e4 LT |
216 | astr->cur_freqs = 1 << rate_index; |
217 | astr->cur_formats = 1 << runtime->format; | |
218 | chip->rate_index = rate_index; | |
219 | chip->format = runtime->format; | |
220 | ||
221 | /* We really want to execute a DMA stop command, after the AWACS | |
222 | * is initialized. | |
223 | * For reasons I don't understand, it stops the hissing noise | |
224 | * common to many PowerBook G3 systems and random noise otherwise | |
225 | * captured on iBook2's about every third time. -ReneR | |
226 | */ | |
227 | spin_lock_irq(&chip->reg_lock); | |
228 | snd_pmac_dma_stop(rec); | |
f5718726 | 229 | chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP); |
1da177e4 LT |
230 | snd_pmac_dma_set_command(rec, &chip->extra_dma); |
231 | snd_pmac_dma_run(rec, RUN); | |
232 | spin_unlock_irq(&chip->reg_lock); | |
233 | mdelay(5); | |
234 | spin_lock_irq(&chip->reg_lock); | |
235 | /* continuous DMA memory type doesn't provide the physical address, | |
236 | * so we need to resolve the address here... | |
237 | */ | |
7bbd8277 | 238 | offset = runtime->dma_addr; |
1da177e4 | 239 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { |
f5718726 DG |
240 | cp->phy_addr = cpu_to_le32(offset); |
241 | cp->req_count = cpu_to_le16(rec->period_size); | |
242 | /*cp->res_count = cpu_to_le16(0);*/ | |
243 | cp->xfer_status = cpu_to_le16(0); | |
1da177e4 LT |
244 | offset += rec->period_size; |
245 | } | |
246 | /* make loop */ | |
f5718726 DG |
247 | cp->command = cpu_to_le16(DBDMA_NOP + BR_ALWAYS); |
248 | cp->cmd_dep = cpu_to_le32(rec->cmd.addr); | |
1da177e4 LT |
249 | |
250 | snd_pmac_dma_stop(rec); | |
251 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
252 | spin_unlock_irq(&chip->reg_lock); | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | ||
258 | /* | |
259 | * PCM trigger/stop | |
260 | */ | |
65b29f50 TI |
261 | static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec, |
262 | struct snd_pcm_substream *subs, int cmd) | |
1da177e4 LT |
263 | { |
264 | volatile struct dbdma_cmd __iomem *cp; | |
265 | int i, command; | |
266 | ||
267 | switch (cmd) { | |
268 | case SNDRV_PCM_TRIGGER_START: | |
269 | case SNDRV_PCM_TRIGGER_RESUME: | |
270 | if (rec->running) | |
271 | return -EBUSY; | |
272 | command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? | |
273 | OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; | |
274 | spin_lock(&chip->reg_lock); | |
275 | snd_pmac_beep_stop(chip); | |
276 | snd_pmac_pcm_set_format(chip); | |
277 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
278 | out_le16(&cp->command, command); | |
279 | snd_pmac_dma_set_command(rec, &rec->cmd); | |
280 | (void)in_le32(&rec->dma->status); | |
281 | snd_pmac_dma_run(rec, RUN|WAKE); | |
282 | rec->running = 1; | |
283 | spin_unlock(&chip->reg_lock); | |
284 | break; | |
285 | ||
286 | case SNDRV_PCM_TRIGGER_STOP: | |
287 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
288 | spin_lock(&chip->reg_lock); | |
289 | rec->running = 0; | |
6da67113 | 290 | /*printk(KERN_DEBUG "stopped!!\n");*/ |
1da177e4 LT |
291 | snd_pmac_dma_stop(rec); |
292 | for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) | |
293 | out_le16(&cp->command, DBDMA_STOP); | |
294 | spin_unlock(&chip->reg_lock); | |
295 | break; | |
296 | ||
297 | default: | |
298 | return -EINVAL; | |
299 | } | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | /* | |
305 | * return the current pointer | |
306 | */ | |
307 | inline | |
65b29f50 TI |
308 | static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip, |
309 | struct pmac_stream *rec, | |
310 | struct snd_pcm_substream *subs) | |
1da177e4 LT |
311 | { |
312 | int count = 0; | |
313 | ||
314 | #if 1 /* hmm.. how can we get the current dma pointer?? */ | |
315 | int stat; | |
316 | volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; | |
f5718726 | 317 | stat = le16_to_cpu(cp->xfer_status); |
1da177e4 LT |
318 | if (stat & (ACTIVE|DEAD)) { |
319 | count = in_le16(&cp->res_count); | |
320 | if (count) | |
321 | count = rec->period_size - count; | |
322 | } | |
323 | #endif | |
324 | count += rec->cur_period * rec->period_size; | |
6da67113 | 325 | /*printk(KERN_DEBUG "pointer=%d\n", count);*/ |
1da177e4 LT |
326 | return bytes_to_frames(subs->runtime, count); |
327 | } | |
328 | ||
329 | /* | |
330 | * playback | |
331 | */ | |
332 | ||
65b29f50 | 333 | static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs) |
1da177e4 | 334 | { |
65b29f50 | 335 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
336 | return snd_pmac_pcm_prepare(chip, &chip->playback, subs); |
337 | } | |
338 | ||
65b29f50 | 339 | static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs, |
1da177e4 LT |
340 | int cmd) |
341 | { | |
65b29f50 | 342 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
343 | return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); |
344 | } | |
345 | ||
65b29f50 | 346 | static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs) |
1da177e4 | 347 | { |
65b29f50 | 348 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
349 | return snd_pmac_pcm_pointer(chip, &chip->playback, subs); |
350 | } | |
351 | ||
352 | ||
353 | /* | |
354 | * capture | |
355 | */ | |
356 | ||
65b29f50 | 357 | static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs) |
1da177e4 | 358 | { |
65b29f50 | 359 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
360 | return snd_pmac_pcm_prepare(chip, &chip->capture, subs); |
361 | } | |
362 | ||
65b29f50 | 363 | static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs, |
1da177e4 LT |
364 | int cmd) |
365 | { | |
65b29f50 | 366 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
367 | return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); |
368 | } | |
369 | ||
65b29f50 | 370 | static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs) |
1da177e4 | 371 | { |
65b29f50 | 372 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
373 | return snd_pmac_pcm_pointer(chip, &chip->capture, subs); |
374 | } | |
375 | ||
376 | ||
e70515dd H |
377 | /* |
378 | * Handle DEAD DMA transfers: | |
379 | * if the TX status comes up "DEAD" - reported on some Power Computing machines | |
380 | * we need to re-start the dbdma - but from a different physical start address | |
381 | * and with a different transfer length. It would get very messy to do this | |
382 | * with the normal dbdma_cmd blocks - we would have to re-write the buffer start | |
383 | * addresses each time. So, we will keep a single dbdma_cmd block which can be | |
384 | * fiddled with. | |
385 | * When DEAD status is first reported the content of the faulted dbdma block is | |
386 | * copied into the emergency buffer and we note that the buffer is in use. | |
387 | * we then bump the start physical address by the amount that was successfully | |
388 | * output before it died. | |
389 | * On any subsequent DEAD result we just do the bump-ups (we know that we are | |
390 | * already using the emergency dbdma_cmd). | |
391 | * CHECK: this just tries to "do it". It is possible that we should abandon | |
392 | * xfers when the number of residual bytes gets below a certain value - I can | |
393 | * see that this might cause a loop-forever if a too small transfer causes | |
394 | * DEAD status. However this is a TODO for now - we'll see what gets reported. | |
395 | * When we get a successful transfer result with the emergency buffer we just | |
396 | * pretend that it completed using the original dmdma_cmd and carry on. The | |
397 | * 'next_cmd' field will already point back to the original loop of blocks. | |
398 | */ | |
399 | static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec, | |
400 | volatile struct dbdma_cmd __iomem *cp) | |
401 | { | |
402 | unsigned short req, res ; | |
403 | unsigned int phy ; | |
404 | ||
405 | /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */ | |
406 | ||
407 | /* to clear DEAD status we must first clear RUN | |
408 | set it to quiescent to be on the safe side */ | |
409 | (void)in_le32(&rec->dma->status); | |
410 | out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); | |
411 | ||
412 | if (!emergency_in_use) { /* new problem */ | |
413 | memcpy((void *)emergency_dbdma.cmds, (void *)cp, | |
414 | sizeof(struct dbdma_cmd)); | |
415 | emergency_in_use = 1; | |
f5718726 DG |
416 | cp->xfer_status = cpu_to_le16(0); |
417 | cp->req_count = cpu_to_le16(rec->period_size); | |
e70515dd H |
418 | cp = emergency_dbdma.cmds; |
419 | } | |
420 | ||
421 | /* now bump the values to reflect the amount | |
422 | we haven't yet shifted */ | |
f5718726 DG |
423 | req = le16_to_cpu(cp->req_count); |
424 | res = le16_to_cpu(cp->res_count); | |
425 | phy = le32_to_cpu(cp->phy_addr); | |
e70515dd | 426 | phy += (req - res); |
f5718726 DG |
427 | cp->req_count = cpu_to_le16(res); |
428 | cp->res_count = cpu_to_le16(0); | |
429 | cp->xfer_status = cpu_to_le16(0); | |
430 | cp->phy_addr = cpu_to_le32(phy); | |
e70515dd | 431 | |
f5718726 | 432 | cp->cmd_dep = cpu_to_le32(rec->cmd.addr |
e70515dd H |
433 | + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods)); |
434 | ||
f5718726 | 435 | cp->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS); |
e70515dd H |
436 | |
437 | /* point at our patched up command block */ | |
438 | out_le32(&rec->dma->cmdptr, emergency_dbdma.addr); | |
439 | ||
440 | /* we must re-start the controller */ | |
441 | (void)in_le32(&rec->dma->status); | |
442 | /* should complete clearing the DEAD status */ | |
443 | out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); | |
444 | } | |
445 | ||
1da177e4 LT |
446 | /* |
447 | * update playback/capture pointer from interrupts | |
448 | */ | |
65b29f50 | 449 | static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec) |
1da177e4 LT |
450 | { |
451 | volatile struct dbdma_cmd __iomem *cp; | |
452 | int c; | |
453 | int stat; | |
454 | ||
455 | spin_lock(&chip->reg_lock); | |
456 | if (rec->running) { | |
1da177e4 | 457 | for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ |
e70515dd H |
458 | |
459 | if (emergency_in_use) /* already using DEAD xfer? */ | |
460 | cp = emergency_dbdma.cmds; | |
461 | else | |
462 | cp = &rec->cmd.cmds[rec->cur_period]; | |
463 | ||
f5718726 | 464 | stat = le16_to_cpu(cp->xfer_status); |
e70515dd H |
465 | |
466 | if (stat & DEAD) { | |
467 | snd_pmac_pcm_dead_xfer(rec, cp); | |
468 | break; /* this block is still going */ | |
469 | } | |
470 | ||
471 | if (emergency_in_use) | |
472 | emergency_in_use = 0 ; /* done that */ | |
473 | ||
1da177e4 LT |
474 | if (! (stat & ACTIVE)) |
475 | break; | |
e70515dd | 476 | |
6da67113 | 477 | /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/ |
f5718726 DG |
478 | cp->xfer_status = cpu_to_le16(0); |
479 | cp->req_count = cpu_to_le16(rec->period_size); | |
480 | /*cp->res_count = cpu_to_le16(0);*/ | |
1da177e4 LT |
481 | rec->cur_period++; |
482 | if (rec->cur_period >= rec->nperiods) { | |
483 | rec->cur_period = 0; | |
e70515dd H |
484 | } |
485 | ||
1da177e4 LT |
486 | spin_unlock(&chip->reg_lock); |
487 | snd_pcm_period_elapsed(rec->substream); | |
488 | spin_lock(&chip->reg_lock); | |
489 | } | |
490 | } | |
491 | spin_unlock(&chip->reg_lock); | |
492 | } | |
493 | ||
494 | ||
495 | /* | |
496 | * hw info | |
497 | */ | |
498 | ||
21bf6cf5 | 499 | static const struct snd_pcm_hardware snd_pmac_playback = |
1da177e4 LT |
500 | { |
501 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
502 | SNDRV_PCM_INFO_MMAP | | |
503 | SNDRV_PCM_INFO_MMAP_VALID | | |
504 | SNDRV_PCM_INFO_RESUME), | |
505 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
506 | .rates = SNDRV_PCM_RATE_8000_44100, | |
507 | .rate_min = 7350, | |
508 | .rate_max = 44100, | |
509 | .channels_min = 2, | |
510 | .channels_max = 2, | |
511 | .buffer_bytes_max = 131072, | |
512 | .period_bytes_min = 256, | |
513 | .period_bytes_max = 16384, | |
514 | .periods_min = 3, | |
515 | .periods_max = PMAC_MAX_FRAGS, | |
516 | }; | |
517 | ||
21bf6cf5 | 518 | static const struct snd_pcm_hardware snd_pmac_capture = |
1da177e4 LT |
519 | { |
520 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
521 | SNDRV_PCM_INFO_MMAP | | |
522 | SNDRV_PCM_INFO_MMAP_VALID | | |
523 | SNDRV_PCM_INFO_RESUME), | |
524 | .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, | |
525 | .rates = SNDRV_PCM_RATE_8000_44100, | |
526 | .rate_min = 7350, | |
527 | .rate_max = 44100, | |
528 | .channels_min = 2, | |
529 | .channels_max = 2, | |
530 | .buffer_bytes_max = 131072, | |
531 | .period_bytes_min = 256, | |
532 | .period_bytes_max = 16384, | |
533 | .periods_min = 3, | |
534 | .periods_max = PMAC_MAX_FRAGS, | |
535 | }; | |
536 | ||
537 | ||
538 | #if 0 // NYI | |
65b29f50 TI |
539 | static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params, |
540 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 541 | { |
65b29f50 TI |
542 | struct snd_pmac *chip = rule->private; |
543 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
1da177e4 LT |
544 | int i, freq_table[8], num_freqs; |
545 | ||
7c22f1aa TI |
546 | if (! rec) |
547 | return -EINVAL; | |
1da177e4 LT |
548 | num_freqs = 0; |
549 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
550 | if (rec->cur_freqs & (1 << i)) | |
551 | freq_table[num_freqs++] = chip->freq_table[i]; | |
552 | } | |
553 | ||
554 | return snd_interval_list(hw_param_interval(params, rule->var), | |
555 | num_freqs, freq_table, 0); | |
556 | } | |
557 | ||
65b29f50 TI |
558 | static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params, |
559 | struct snd_pcm_hw_rule *rule) | |
1da177e4 | 560 | { |
65b29f50 TI |
561 | struct snd_pmac *chip = rule->private; |
562 | struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); | |
1da177e4 | 563 | |
7c22f1aa TI |
564 | if (! rec) |
565 | return -EINVAL; | |
1da177e4 LT |
566 | return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), |
567 | rec->cur_formats); | |
568 | } | |
569 | #endif // NYI | |
570 | ||
65b29f50 TI |
571 | static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec, |
572 | struct snd_pcm_substream *subs) | |
1da177e4 | 573 | { |
65b29f50 | 574 | struct snd_pcm_runtime *runtime = subs->runtime; |
918f3a0e | 575 | int i; |
1da177e4 LT |
576 | |
577 | /* look up frequency table and fill bit mask */ | |
578 | runtime->hw.rates = 0; | |
918f3a0e CL |
579 | for (i = 0; i < chip->num_freqs; i++) |
580 | if (chip->freqs_ok & (1 << i)) | |
581 | runtime->hw.rates |= | |
582 | snd_pcm_rate_to_rate_bit(chip->freq_table[i]); | |
1da177e4 LT |
583 | |
584 | /* check for minimum and maximum rates */ | |
585 | for (i = 0; i < chip->num_freqs; i++) { | |
586 | if (chip->freqs_ok & (1 << i)) { | |
587 | runtime->hw.rate_max = chip->freq_table[i]; | |
588 | break; | |
589 | } | |
590 | } | |
591 | for (i = chip->num_freqs - 1; i >= 0; i--) { | |
592 | if (chip->freqs_ok & (1 << i)) { | |
593 | runtime->hw.rate_min = chip->freq_table[i]; | |
594 | break; | |
595 | } | |
596 | } | |
597 | runtime->hw.formats = chip->formats_ok; | |
598 | if (chip->can_capture) { | |
599 | if (! chip->can_duplex) | |
600 | runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; | |
601 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
602 | } | |
603 | runtime->private_data = rec; | |
604 | rec->substream = subs; | |
605 | ||
606 | #if 0 /* FIXME: still under development.. */ | |
607 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
608 | snd_pmac_hw_rule_rate, chip, rec->stream, -1); | |
609 | snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, | |
610 | snd_pmac_hw_rule_format, chip, rec->stream, -1); | |
611 | #endif | |
612 | ||
613 | runtime->hw.periods_max = rec->cmd.size - 1; | |
614 | ||
1da177e4 LT |
615 | /* constraints to fix choppy sound */ |
616 | snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
617 | return 0; | |
618 | } | |
619 | ||
65b29f50 TI |
620 | static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec, |
621 | struct snd_pcm_substream *subs) | |
1da177e4 | 622 | { |
65b29f50 | 623 | struct pmac_stream *astr; |
1da177e4 LT |
624 | |
625 | snd_pmac_dma_stop(rec); | |
626 | ||
627 | astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); | |
7c22f1aa TI |
628 | if (! astr) |
629 | return -EINVAL; | |
1da177e4 LT |
630 | |
631 | /* reset constraints */ | |
632 | astr->cur_freqs = chip->freqs_ok; | |
633 | astr->cur_formats = chip->formats_ok; | |
946cda7d | 634 | |
1da177e4 LT |
635 | return 0; |
636 | } | |
637 | ||
65b29f50 | 638 | static int snd_pmac_playback_open(struct snd_pcm_substream *subs) |
1da177e4 | 639 | { |
65b29f50 | 640 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
641 | |
642 | subs->runtime->hw = snd_pmac_playback; | |
643 | return snd_pmac_pcm_open(chip, &chip->playback, subs); | |
644 | } | |
645 | ||
65b29f50 | 646 | static int snd_pmac_capture_open(struct snd_pcm_substream *subs) |
1da177e4 | 647 | { |
65b29f50 | 648 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
649 | |
650 | subs->runtime->hw = snd_pmac_capture; | |
651 | return snd_pmac_pcm_open(chip, &chip->capture, subs); | |
652 | } | |
653 | ||
65b29f50 | 654 | static int snd_pmac_playback_close(struct snd_pcm_substream *subs) |
1da177e4 | 655 | { |
65b29f50 | 656 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
657 | |
658 | return snd_pmac_pcm_close(chip, &chip->playback, subs); | |
659 | } | |
660 | ||
65b29f50 | 661 | static int snd_pmac_capture_close(struct snd_pcm_substream *subs) |
1da177e4 | 662 | { |
65b29f50 | 663 | struct snd_pmac *chip = snd_pcm_substream_chip(subs); |
1da177e4 LT |
664 | |
665 | return snd_pmac_pcm_close(chip, &chip->capture, subs); | |
666 | } | |
667 | ||
668 | /* | |
669 | */ | |
670 | ||
3179a3ea | 671 | static const struct snd_pcm_ops snd_pmac_playback_ops = { |
1da177e4 LT |
672 | .open = snd_pmac_playback_open, |
673 | .close = snd_pmac_playback_close, | |
674 | .ioctl = snd_pcm_lib_ioctl, | |
675 | .hw_params = snd_pmac_pcm_hw_params, | |
676 | .hw_free = snd_pmac_pcm_hw_free, | |
677 | .prepare = snd_pmac_playback_prepare, | |
678 | .trigger = snd_pmac_playback_trigger, | |
679 | .pointer = snd_pmac_playback_pointer, | |
680 | }; | |
681 | ||
3179a3ea | 682 | static const struct snd_pcm_ops snd_pmac_capture_ops = { |
1da177e4 LT |
683 | .open = snd_pmac_capture_open, |
684 | .close = snd_pmac_capture_close, | |
685 | .ioctl = snd_pcm_lib_ioctl, | |
686 | .hw_params = snd_pmac_pcm_hw_params, | |
687 | .hw_free = snd_pmac_pcm_hw_free, | |
688 | .prepare = snd_pmac_capture_prepare, | |
689 | .trigger = snd_pmac_capture_trigger, | |
690 | .pointer = snd_pmac_capture_pointer, | |
691 | }; | |
692 | ||
15afafc2 | 693 | int snd_pmac_pcm_new(struct snd_pmac *chip) |
1da177e4 | 694 | { |
65b29f50 | 695 | struct snd_pcm *pcm; |
1da177e4 LT |
696 | int err; |
697 | int num_captures = 1; | |
698 | ||
699 | if (! chip->can_capture) | |
700 | num_captures = 0; | |
701 | err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); | |
702 | if (err < 0) | |
703 | return err; | |
704 | ||
705 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); | |
706 | if (chip->can_capture) | |
707 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); | |
708 | ||
709 | pcm->private_data = chip; | |
1da177e4 LT |
710 | pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; |
711 | strcpy(pcm->name, chip->card->shortname); | |
712 | chip->pcm = pcm; | |
713 | ||
714 | chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; | |
715 | if (chip->can_byte_swap) | |
716 | chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; | |
717 | ||
718 | chip->playback.cur_formats = chip->formats_ok; | |
719 | chip->capture.cur_formats = chip->formats_ok; | |
720 | chip->playback.cur_freqs = chip->freqs_ok; | |
721 | chip->capture.cur_freqs = chip->freqs_ok; | |
722 | ||
723 | /* preallocate 64k buffer */ | |
7bbd8277 BH |
724 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
725 | &chip->pdev->dev, | |
1da177e4 LT |
726 | 64 * 1024, 64 * 1024); |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
731 | ||
65b29f50 | 732 | static void snd_pmac_dbdma_reset(struct snd_pmac *chip) |
1da177e4 LT |
733 | { |
734 | out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
735 | snd_pmac_wait_ack(&chip->playback); | |
736 | out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); | |
737 | snd_pmac_wait_ack(&chip->capture); | |
738 | } | |
739 | ||
740 | ||
741 | /* | |
742 | * handling beep | |
743 | */ | |
65b29f50 | 744 | void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed) |
1da177e4 | 745 | { |
65b29f50 | 746 | struct pmac_stream *rec = &chip->playback; |
1da177e4 LT |
747 | |
748 | snd_pmac_dma_stop(rec); | |
f5718726 DG |
749 | chip->extra_dma.cmds->req_count = cpu_to_le16(bytes); |
750 | chip->extra_dma.cmds->xfer_status = cpu_to_le16(0); | |
751 | chip->extra_dma.cmds->cmd_dep = cpu_to_le32(chip->extra_dma.addr); | |
752 | chip->extra_dma.cmds->phy_addr = cpu_to_le32(addr); | |
753 | chip->extra_dma.cmds->command = cpu_to_le16(OUTPUT_MORE + BR_ALWAYS); | |
1da177e4 LT |
754 | out_le32(&chip->awacs->control, |
755 | (in_le32(&chip->awacs->control) & ~0x1f00) | |
756 | | (speed << 8)); | |
757 | out_le32(&chip->awacs->byteswap, 0); | |
758 | snd_pmac_dma_set_command(rec, &chip->extra_dma); | |
759 | snd_pmac_dma_run(rec, RUN); | |
760 | } | |
761 | ||
65b29f50 | 762 | void snd_pmac_beep_dma_stop(struct snd_pmac *chip) |
1da177e4 LT |
763 | { |
764 | snd_pmac_dma_stop(&chip->playback); | |
f5718726 | 765 | chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP); |
1da177e4 LT |
766 | snd_pmac_pcm_set_format(chip); /* reset format */ |
767 | } | |
768 | ||
769 | ||
770 | /* | |
771 | * interrupt handlers | |
772 | */ | |
773 | static irqreturn_t | |
7d12e780 | 774 | snd_pmac_tx_intr(int irq, void *devid) |
1da177e4 | 775 | { |
65b29f50 | 776 | struct snd_pmac *chip = devid; |
1da177e4 LT |
777 | snd_pmac_pcm_update(chip, &chip->playback); |
778 | return IRQ_HANDLED; | |
779 | } | |
780 | ||
781 | ||
782 | static irqreturn_t | |
7d12e780 | 783 | snd_pmac_rx_intr(int irq, void *devid) |
1da177e4 | 784 | { |
65b29f50 | 785 | struct snd_pmac *chip = devid; |
1da177e4 LT |
786 | snd_pmac_pcm_update(chip, &chip->capture); |
787 | return IRQ_HANDLED; | |
788 | } | |
789 | ||
790 | ||
791 | static irqreturn_t | |
7d12e780 | 792 | snd_pmac_ctrl_intr(int irq, void *devid) |
1da177e4 | 793 | { |
65b29f50 | 794 | struct snd_pmac *chip = devid; |
1da177e4 LT |
795 | int ctrl = in_le32(&chip->awacs->control); |
796 | ||
6da67113 | 797 | /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/ |
1da177e4 LT |
798 | if (ctrl & MASK_PORTCHG) { |
799 | /* do something when headphone is plugged/unplugged? */ | |
800 | if (chip->update_automute) | |
801 | chip->update_automute(chip, 1); | |
802 | } | |
803 | if (ctrl & MASK_CNTLERR) { | |
804 | int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; | |
805 | if (err && chip->model <= PMAC_SCREAMER) | |
806 | snd_printk(KERN_DEBUG "error %x\n", err); | |
807 | } | |
808 | /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ | |
809 | out_le32(&chip->awacs->control, ctrl); | |
810 | return IRQ_HANDLED; | |
811 | } | |
812 | ||
813 | ||
814 | /* | |
815 | * a wrapper to feature call for compatibility | |
816 | */ | |
65b29f50 | 817 | static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable) |
1da177e4 | 818 | { |
4e6a06ee DW |
819 | if (ppc_md.feature_call) |
820 | ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); | |
1da177e4 | 821 | } |
1da177e4 LT |
822 | |
823 | /* | |
824 | * release resources | |
825 | */ | |
826 | ||
65b29f50 | 827 | static int snd_pmac_free(struct snd_pmac *chip) |
1da177e4 | 828 | { |
1da177e4 LT |
829 | /* stop sounds */ |
830 | if (chip->initialized) { | |
831 | snd_pmac_dbdma_reset(chip); | |
832 | /* disable interrupts from awacs interface */ | |
833 | out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); | |
834 | } | |
835 | ||
41e904de BH |
836 | if (chip->node) |
837 | snd_pmac_sound_feature(chip, 0); | |
1da177e4 LT |
838 | |
839 | /* clean up mixer if any */ | |
840 | if (chip->mixer_free) | |
841 | chip->mixer_free(chip); | |
842 | ||
843 | snd_pmac_detach_beep(chip); | |
844 | ||
845 | /* release resources */ | |
846 | if (chip->irq >= 0) | |
847 | free_irq(chip->irq, (void*)chip); | |
848 | if (chip->tx_irq >= 0) | |
849 | free_irq(chip->tx_irq, (void*)chip); | |
850 | if (chip->rx_irq >= 0) | |
851 | free_irq(chip->rx_irq, (void*)chip); | |
7bbd8277 BH |
852 | snd_pmac_dbdma_free(chip, &chip->playback.cmd); |
853 | snd_pmac_dbdma_free(chip, &chip->capture.cmd); | |
854 | snd_pmac_dbdma_free(chip, &chip->extra_dma); | |
e70515dd | 855 | snd_pmac_dbdma_free(chip, &emergency_dbdma); |
ff6defa6 ME |
856 | iounmap(chip->macio_base); |
857 | iounmap(chip->latch_base); | |
858 | iounmap(chip->awacs); | |
859 | iounmap(chip->playback.dma); | |
860 | iounmap(chip->capture.dma); | |
cc5d0189 | 861 | |
1da177e4 | 862 | if (chip->node) { |
7bbd8277 | 863 | int i; |
1da177e4 | 864 | for (i = 0; i < 3; i++) { |
cc5d0189 BH |
865 | if (chip->requested & (1 << i)) |
866 | release_mem_region(chip->rsrc[i].start, | |
28f65c11 | 867 | resource_size(&chip->rsrc[i])); |
1da177e4 LT |
868 | } |
869 | } | |
cc5d0189 | 870 | |
1ea7a568 | 871 | pci_dev_put(chip->pdev); |
30686ba6 | 872 | of_node_put(chip->node); |
1da177e4 LT |
873 | kfree(chip); |
874 | return 0; | |
875 | } | |
876 | ||
877 | ||
878 | /* | |
879 | * free the device | |
880 | */ | |
65b29f50 | 881 | static int snd_pmac_dev_free(struct snd_device *device) |
1da177e4 | 882 | { |
65b29f50 | 883 | struct snd_pmac *chip = device->device_data; |
1da177e4 LT |
884 | return snd_pmac_free(chip); |
885 | } | |
886 | ||
887 | ||
888 | /* | |
889 | * check the machine support byteswap (little-endian) | |
890 | */ | |
891 | ||
15afafc2 | 892 | static void detect_byte_swap(struct snd_pmac *chip) |
1da177e4 LT |
893 | { |
894 | struct device_node *mio; | |
895 | ||
896 | /* if seems that Keylargo can't byte-swap */ | |
897 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
157ab88e | 898 | if (of_node_name_eq(mio, "mac-io")) { |
55b61fec | 899 | if (of_device_is_compatible(mio, "Keylargo")) |
1da177e4 LT |
900 | chip->can_byte_swap = 0; |
901 | break; | |
902 | } | |
903 | } | |
904 | ||
905 | /* it seems the Pismo & iBook can't byte-swap in hardware. */ | |
71a157e8 GL |
906 | if (of_machine_is_compatible("PowerBook3,1") || |
907 | of_machine_is_compatible("PowerBook2,1")) | |
1da177e4 LT |
908 | chip->can_byte_swap = 0 ; |
909 | ||
71a157e8 | 910 | if (of_machine_is_compatible("PowerBook2,1")) |
1da177e4 LT |
911 | chip->can_duplex = 0; |
912 | } | |
913 | ||
914 | ||
915 | /* | |
916 | * detect a sound chip | |
917 | */ | |
15afafc2 | 918 | static int snd_pmac_detect(struct snd_pmac *chip) |
1da177e4 | 919 | { |
30686ba6 SR |
920 | struct device_node *sound; |
921 | struct device_node *dn; | |
c4f55b39 SR |
922 | const unsigned int *prop; |
923 | unsigned int l; | |
7bbd8277 BH |
924 | struct macio_chip* macio; |
925 | ||
e8222502 | 926 | if (!machine_is(powermac)) |
1da177e4 LT |
927 | return -ENODEV; |
928 | ||
929 | chip->subframe = 0; | |
930 | chip->revision = 0; | |
931 | chip->freqs_ok = 0xff; /* all ok */ | |
932 | chip->model = PMAC_AWACS; | |
933 | chip->can_byte_swap = 1; | |
934 | chip->can_duplex = 1; | |
935 | chip->can_capture = 1; | |
936 | chip->num_freqs = ARRAY_SIZE(awacs_freqs); | |
937 | chip->freq_table = awacs_freqs; | |
367636e8 | 938 | chip->pdev = NULL; |
1da177e4 LT |
939 | |
940 | chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ | |
941 | ||
942 | /* check machine type */ | |
71a157e8 GL |
943 | if (of_machine_is_compatible("AAPL,3400/2400") |
944 | || of_machine_is_compatible("AAPL,3500")) | |
1da177e4 | 945 | chip->is_pbook_3400 = 1; |
71a157e8 GL |
946 | else if (of_machine_is_compatible("PowerBook1,1") |
947 | || of_machine_is_compatible("AAPL,PowerBook1998")) | |
1da177e4 | 948 | chip->is_pbook_G3 = 1; |
30686ba6 SR |
949 | chip->node = of_find_node_by_name(NULL, "awacs"); |
950 | sound = of_node_get(chip->node); | |
1da177e4 LT |
951 | |
952 | /* | |
953 | * powermac G3 models have a node called "davbus" | |
954 | * with a child called "sound". | |
955 | */ | |
5218064c | 956 | if (!chip->node) |
30686ba6 | 957 | chip->node = of_find_node_by_name(NULL, "davbus"); |
1da177e4 LT |
958 | /* |
959 | * if we didn't find a davbus device, try 'i2s-a' since | |
960 | * this seems to be what iBooks have | |
961 | */ | |
7bbd8277 | 962 | if (! chip->node) { |
30686ba6 | 963 | chip->node = of_find_node_by_name(NULL, "i2s-a"); |
5218064c BH |
964 | if (chip->node && chip->node->parent && |
965 | chip->node->parent->parent) { | |
55b61fec | 966 | if (of_device_is_compatible(chip->node->parent->parent, |
7bbd8277 BH |
967 | "K2-Keylargo")) |
968 | chip->is_k2 = 1; | |
969 | } | |
970 | } | |
1da177e4 LT |
971 | if (! chip->node) |
972 | return -ENODEV; | |
7bbd8277 | 973 | |
5218064c | 974 | if (!sound) { |
ccdb8ed3 GL |
975 | for_each_node_by_name(sound, "sound") |
976 | if (sound->parent == chip->node) | |
977 | break; | |
5218064c | 978 | } |
30686ba6 SR |
979 | if (! sound) { |
980 | of_node_put(chip->node); | |
41e904de | 981 | chip->node = NULL; |
1da177e4 | 982 | return -ENODEV; |
30686ba6 | 983 | } |
c4f55b39 | 984 | prop = of_get_property(sound, "sub-frame", NULL); |
1da177e4 LT |
985 | if (prop && *prop < 16) |
986 | chip->subframe = *prop; | |
c4f55b39 | 987 | prop = of_get_property(sound, "layout-id", NULL); |
55c385ad JB |
988 | if (prop) { |
989 | /* partly deprecate snd-powermac, for those machines | |
990 | * that have a layout-id property for now */ | |
991 | printk(KERN_INFO "snd-powermac no longer handles any " | |
992 | "machines with a layout-id property " | |
993 | "in the device-tree, use snd-aoa.\n"); | |
41e904de | 994 | of_node_put(sound); |
30686ba6 | 995 | of_node_put(chip->node); |
41e904de | 996 | chip->node = NULL; |
55c385ad JB |
997 | return -ENODEV; |
998 | } | |
1da177e4 | 999 | /* This should be verified on older screamers */ |
55b61fec | 1000 | if (of_device_is_compatible(sound, "screamer")) { |
1da177e4 LT |
1001 | chip->model = PMAC_SCREAMER; |
1002 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1003 | } | |
55b61fec | 1004 | if (of_device_is_compatible(sound, "burgundy")) { |
1da177e4 LT |
1005 | chip->model = PMAC_BURGUNDY; |
1006 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1007 | } | |
55b61fec | 1008 | if (of_device_is_compatible(sound, "daca")) { |
1da177e4 LT |
1009 | chip->model = PMAC_DACA; |
1010 | chip->can_capture = 0; /* no capture */ | |
1011 | chip->can_duplex = 0; | |
1012 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1013 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1014 | } | |
55b61fec | 1015 | if (of_device_is_compatible(sound, "tumbler")) { |
1da177e4 | 1016 | chip->model = PMAC_TUMBLER; |
71a157e8 | 1017 | chip->can_capture = of_machine_is_compatible("PowerMac4,2") |
8460ae70 RS |
1018 | || of_machine_is_compatible("PowerBook3,2") |
1019 | || of_machine_is_compatible("PowerBook3,3") | |
1020 | || of_machine_is_compatible("PowerBook4,1") | |
1021 | || of_machine_is_compatible("PowerBook4,2") | |
1022 | || of_machine_is_compatible("PowerBook4,3"); | |
1da177e4 LT |
1023 | chip->can_duplex = 0; |
1024 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1025 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
1026 | chip->freq_table = tumbler_freqs; | |
1027 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1028 | } | |
55b61fec | 1029 | if (of_device_is_compatible(sound, "snapper")) { |
1da177e4 LT |
1030 | chip->model = PMAC_SNAPPER; |
1031 | // chip->can_byte_swap = 0; /* FIXME: check this */ | |
1032 | chip->num_freqs = ARRAY_SIZE(tumbler_freqs); | |
1033 | chip->freq_table = tumbler_freqs; | |
1034 | chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ | |
1035 | } | |
c4f55b39 | 1036 | prop = of_get_property(sound, "device-id", NULL); |
1da177e4 LT |
1037 | if (prop) |
1038 | chip->device_id = *prop; | |
30686ba6 SR |
1039 | dn = of_find_node_by_name(NULL, "perch"); |
1040 | chip->has_iic = (dn != NULL); | |
1041 | of_node_put(dn); | |
1da177e4 | 1042 | |
7bbd8277 BH |
1043 | /* We need the PCI device for DMA allocations, let's use a crude method |
1044 | * for now ... | |
1045 | */ | |
1046 | macio = macio_find(chip->node, macio_unknown); | |
1047 | if (macio == NULL) | |
1048 | printk(KERN_WARNING "snd-powermac: can't locate macio !\n"); | |
1049 | else { | |
1050 | struct pci_dev *pdev = NULL; | |
1051 | ||
1052 | for_each_pci_dev(pdev) { | |
1053 | struct device_node *np = pci_device_to_OF_node(pdev); | |
1054 | if (np && np == macio->of_node) { | |
1055 | chip->pdev = pdev; | |
1056 | break; | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | if (chip->pdev == NULL) | |
5218064c BH |
1061 | printk(KERN_WARNING "snd-powermac: can't locate macio PCI" |
1062 | " device !\n"); | |
7bbd8277 | 1063 | |
1da177e4 LT |
1064 | detect_byte_swap(chip); |
1065 | ||
1066 | /* look for a property saying what sample rates | |
1067 | are available */ | |
c4f55b39 | 1068 | prop = of_get_property(sound, "sample-rates", &l); |
1da177e4 | 1069 | if (! prop) |
c4f55b39 | 1070 | prop = of_get_property(sound, "output-frame-rates", &l); |
1da177e4 LT |
1071 | if (prop) { |
1072 | int i; | |
1073 | chip->freqs_ok = 0; | |
1074 | for (l /= sizeof(int); l > 0; --l) { | |
1075 | unsigned int r = *prop++; | |
1076 | /* Apple 'Fixed' format */ | |
1077 | if (r >= 0x10000) | |
1078 | r >>= 16; | |
1079 | for (i = 0; i < chip->num_freqs; ++i) { | |
1080 | if (r == chip->freq_table[i]) { | |
1081 | chip->freqs_ok |= (1 << i); | |
1082 | break; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | } else { | |
1087 | /* assume only 44.1khz */ | |
1088 | chip->freqs_ok = 1; | |
1089 | } | |
1090 | ||
30686ba6 | 1091 | of_node_put(sound); |
1da177e4 LT |
1092 | return 0; |
1093 | } | |
1094 | ||
1da177e4 LT |
1095 | #ifdef PMAC_SUPPORT_AUTOMUTE |
1096 | /* | |
1097 | * auto-mute | |
1098 | */ | |
65b29f50 TI |
1099 | static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol, |
1100 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1101 | { |
65b29f50 | 1102 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1103 | ucontrol->value.integer.value[0] = chip->auto_mute; |
1104 | return 0; | |
1105 | } | |
1106 | ||
65b29f50 TI |
1107 | static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol, |
1108 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1109 | { |
65b29f50 | 1110 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 | 1111 | if (ucontrol->value.integer.value[0] != chip->auto_mute) { |
d4079ac4 | 1112 | chip->auto_mute = !!ucontrol->value.integer.value[0]; |
1da177e4 LT |
1113 | if (chip->update_automute) |
1114 | chip->update_automute(chip, 1); | |
1115 | return 1; | |
1116 | } | |
1117 | return 0; | |
1118 | } | |
1119 | ||
65b29f50 TI |
1120 | static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol, |
1121 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 1122 | { |
65b29f50 | 1123 | struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
1124 | if (chip->detect_headphone) |
1125 | ucontrol->value.integer.value[0] = chip->detect_headphone(chip); | |
1126 | else | |
1127 | ucontrol->value.integer.value[0] = 0; | |
1128 | return 0; | |
1129 | } | |
1130 | ||
15afafc2 | 1131 | static struct snd_kcontrol_new auto_mute_controls[] = { |
1da177e4 LT |
1132 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
1133 | .name = "Auto Mute Switch", | |
1134 | .info = snd_pmac_boolean_mono_info, | |
1135 | .get = pmac_auto_mute_get, | |
1136 | .put = pmac_auto_mute_put, | |
1137 | }, | |
1138 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1139 | .name = "Headphone Detection", | |
1140 | .access = SNDRV_CTL_ELEM_ACCESS_READ, | |
1141 | .info = snd_pmac_boolean_mono_info, | |
1142 | .get = pmac_hp_detect_get, | |
1143 | }, | |
1144 | }; | |
1145 | ||
15afafc2 | 1146 | int snd_pmac_add_automute(struct snd_pmac *chip) |
1da177e4 LT |
1147 | { |
1148 | int err; | |
1149 | chip->auto_mute = 1; | |
1150 | err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); | |
7bbd8277 BH |
1151 | if (err < 0) { |
1152 | printk(KERN_ERR "snd-powermac: Failed to add automute control\n"); | |
1da177e4 | 1153 | return err; |
7bbd8277 | 1154 | } |
1da177e4 LT |
1155 | chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); |
1156 | return snd_ctl_add(chip->card, chip->hp_detect_ctl); | |
1157 | } | |
1158 | #endif /* PMAC_SUPPORT_AUTOMUTE */ | |
1159 | ||
1160 | /* | |
1161 | * create and detect a pmac chip record | |
1162 | */ | |
15afafc2 | 1163 | int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return) |
1da177e4 | 1164 | { |
65b29f50 | 1165 | struct snd_pmac *chip; |
1da177e4 LT |
1166 | struct device_node *np; |
1167 | int i, err; | |
0ebfff14 | 1168 | unsigned int irq; |
7bbd8277 | 1169 | unsigned long ctrl_addr, txdma_addr, rxdma_addr; |
65b29f50 | 1170 | static struct snd_device_ops ops = { |
1da177e4 LT |
1171 | .dev_free = snd_pmac_dev_free, |
1172 | }; | |
1173 | ||
1da177e4 LT |
1174 | *chip_return = NULL; |
1175 | ||
561b220a | 1176 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
1da177e4 LT |
1177 | if (chip == NULL) |
1178 | return -ENOMEM; | |
1179 | chip->card = card; | |
1180 | ||
1181 | spin_lock_init(&chip->reg_lock); | |
1182 | chip->irq = chip->tx_irq = chip->rx_irq = -1; | |
1183 | ||
1184 | chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
1185 | chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; | |
1186 | ||
1187 | if ((err = snd_pmac_detect(chip)) < 0) | |
1188 | goto __error; | |
1189 | ||
7bbd8277 BH |
1190 | if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || |
1191 | snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || | |
e70515dd H |
1192 | snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 || |
1193 | snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) { | |
1da177e4 LT |
1194 | err = -ENOMEM; |
1195 | goto __error; | |
1196 | } | |
1197 | ||
1198 | np = chip->node; | |
cc5d0189 | 1199 | chip->requested = 0; |
7bbd8277 | 1200 | if (chip->is_k2) { |
cc5d0189 BH |
1201 | static char *rnames[] = { |
1202 | "Sound Control", "Sound DMA" }; | |
cc5d0189 BH |
1203 | for (i = 0; i < 2; i ++) { |
1204 | if (of_address_to_resource(np->parent, i, | |
1205 | &chip->rsrc[i])) { | |
1206 | printk(KERN_ERR "snd: can't translate rsrc " | |
1207 | " %d (%s)\n", i, rnames[i]); | |
1208 | err = -ENODEV; | |
1209 | goto __error; | |
1210 | } | |
1211 | if (request_mem_region(chip->rsrc[i].start, | |
28f65c11 | 1212 | resource_size(&chip->rsrc[i]), |
cc5d0189 BH |
1213 | rnames[i]) == NULL) { |
1214 | printk(KERN_ERR "snd: can't request rsrc " | |
2fb50f13 JP |
1215 | " %d (%s: %pR)\n", |
1216 | i, rnames[i], &chip->rsrc[i]); | |
7bbd8277 BH |
1217 | err = -ENODEV; |
1218 | goto __error; | |
1219 | } | |
cc5d0189 | 1220 | chip->requested |= (1 << i); |
7bbd8277 | 1221 | } |
cc5d0189 BH |
1222 | ctrl_addr = chip->rsrc[0].start; |
1223 | txdma_addr = chip->rsrc[1].start; | |
1224 | rxdma_addr = txdma_addr + 0x100; | |
7bbd8277 | 1225 | } else { |
cc5d0189 BH |
1226 | static char *rnames[] = { |
1227 | "Sound Control", "Sound Tx DMA", "Sound Rx DMA" }; | |
cc5d0189 | 1228 | for (i = 0; i < 3; i ++) { |
88356e90 | 1229 | if (of_address_to_resource(np, i, |
cc5d0189 BH |
1230 | &chip->rsrc[i])) { |
1231 | printk(KERN_ERR "snd: can't translate rsrc " | |
1232 | " %d (%s)\n", i, rnames[i]); | |
1233 | err = -ENODEV; | |
1234 | goto __error; | |
1235 | } | |
1236 | if (request_mem_region(chip->rsrc[i].start, | |
28f65c11 | 1237 | resource_size(&chip->rsrc[i]), |
cc5d0189 BH |
1238 | rnames[i]) == NULL) { |
1239 | printk(KERN_ERR "snd: can't request rsrc " | |
2fb50f13 JP |
1240 | " %d (%s: %pR)\n", |
1241 | i, rnames[i], &chip->rsrc[i]); | |
7bbd8277 BH |
1242 | err = -ENODEV; |
1243 | goto __error; | |
1244 | } | |
cc5d0189 | 1245 | chip->requested |= (1 << i); |
7bbd8277 | 1246 | } |
cc5d0189 BH |
1247 | ctrl_addr = chip->rsrc[0].start; |
1248 | txdma_addr = chip->rsrc[1].start; | |
1249 | rxdma_addr = chip->rsrc[2].start; | |
1da177e4 LT |
1250 | } |
1251 | ||
7bbd8277 BH |
1252 | chip->awacs = ioremap(ctrl_addr, 0x1000); |
1253 | chip->playback.dma = ioremap(txdma_addr, 0x100); | |
1254 | chip->capture.dma = ioremap(rxdma_addr, 0x100); | |
1da177e4 | 1255 | if (chip->model <= PMAC_BURGUNDY) { |
0ebfff14 BH |
1256 | irq = irq_of_parse_and_map(np, 0); |
1257 | if (request_irq(irq, snd_pmac_ctrl_intr, 0, | |
1da177e4 | 1258 | "PMac", (void*)chip)) { |
0ebfff14 BH |
1259 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", |
1260 | irq); | |
1da177e4 LT |
1261 | err = -EBUSY; |
1262 | goto __error; | |
1263 | } | |
0ebfff14 | 1264 | chip->irq = irq; |
1da177e4 | 1265 | } |
0ebfff14 BH |
1266 | irq = irq_of_parse_and_map(np, 1); |
1267 | if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){ | |
1268 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); | |
1da177e4 LT |
1269 | err = -EBUSY; |
1270 | goto __error; | |
1271 | } | |
0ebfff14 BH |
1272 | chip->tx_irq = irq; |
1273 | irq = irq_of_parse_and_map(np, 2); | |
1274 | if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) { | |
1275 | snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); | |
1da177e4 LT |
1276 | err = -EBUSY; |
1277 | goto __error; | |
1278 | } | |
0ebfff14 | 1279 | chip->rx_irq = irq; |
1da177e4 LT |
1280 | |
1281 | snd_pmac_sound_feature(chip, 1); | |
1282 | ||
9a4f20fc RS |
1283 | /* reset & enable interrupts */ |
1284 | if (chip->model <= PMAC_BURGUNDY) | |
1285 | out_le32(&chip->awacs->control, chip->control_mask); | |
1da177e4 LT |
1286 | |
1287 | /* Powerbooks have odd ways of enabling inputs such as | |
1288 | an expansion-bay CD or sound from an internal modem | |
1289 | or a PC-card modem. */ | |
1290 | if (chip->is_pbook_3400) { | |
1291 | /* Enable CD and PC-card sound inputs. */ | |
1292 | /* This is done by reading from address | |
1293 | * f301a000, + 0x10 to enable the expansion-bay | |
1294 | * CD sound input, + 0x80 to enable the PC-card | |
1295 | * sound input. The 0x100 enables the SCSI bus | |
1296 | * terminator power. | |
1297 | */ | |
1298 | chip->latch_base = ioremap (0xf301a000, 0x1000); | |
1299 | in_8(chip->latch_base + 0x190); | |
1300 | } else if (chip->is_pbook_G3) { | |
1301 | struct device_node* mio; | |
1302 | for (mio = chip->node->parent; mio; mio = mio->parent) { | |
157ab88e | 1303 | if (of_node_name_eq(mio, "mac-io")) { |
cc5d0189 BH |
1304 | struct resource r; |
1305 | if (of_address_to_resource(mio, 0, &r) == 0) | |
1306 | chip->macio_base = | |
1307 | ioremap(r.start, 0x40); | |
1da177e4 LT |
1308 | break; |
1309 | } | |
1310 | } | |
1311 | /* Enable CD sound input. */ | |
1312 | /* The relevant bits for writing to this byte are 0x8f. | |
1313 | * I haven't found out what the 0x80 bit does. | |
1314 | * For the 0xf bits, writing 3 or 7 enables the CD | |
1315 | * input, any other value disables it. Values | |
1316 | * 1, 3, 5, 7 enable the microphone. Values 0, 2, | |
1317 | * 4, 6, 8 - f enable the input from the modem. | |
1318 | */ | |
1319 | if (chip->macio_base) | |
1320 | out_8(chip->macio_base + 0x37, 3); | |
1321 | } | |
1322 | ||
1323 | /* Reset dbdma channels */ | |
1324 | snd_pmac_dbdma_reset(chip); | |
1325 | ||
1da177e4 LT |
1326 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) |
1327 | goto __error; | |
1328 | ||
1329 | *chip_return = chip; | |
1330 | return 0; | |
1331 | ||
1332 | __error: | |
1333 | snd_pmac_free(chip); | |
1334 | return err; | |
1335 | } | |
1336 | ||
1337 | ||
1338 | /* | |
1339 | * sleep notify for powerbook | |
1340 | */ | |
1341 | ||
8c870933 | 1342 | #ifdef CONFIG_PM |
1da177e4 LT |
1343 | |
1344 | /* | |
1345 | * Save state when going to sleep, restore it afterwards. | |
1346 | */ | |
1347 | ||
5e12bea0 | 1348 | void snd_pmac_suspend(struct snd_pmac *chip) |
1da177e4 | 1349 | { |
1da177e4 LT |
1350 | unsigned long flags; |
1351 | ||
5e12bea0 | 1352 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); |
1da177e4 LT |
1353 | if (chip->suspend) |
1354 | chip->suspend(chip); | |
1da177e4 LT |
1355 | spin_lock_irqsave(&chip->reg_lock, flags); |
1356 | snd_pmac_beep_stop(chip); | |
1357 | spin_unlock_irqrestore(&chip->reg_lock, flags); | |
1358 | if (chip->irq >= 0) | |
1359 | disable_irq(chip->irq); | |
1360 | if (chip->tx_irq >= 0) | |
1361 | disable_irq(chip->tx_irq); | |
1362 | if (chip->rx_irq >= 0) | |
1363 | disable_irq(chip->rx_irq); | |
1364 | snd_pmac_sound_feature(chip, 0); | |
1da177e4 LT |
1365 | } |
1366 | ||
5e12bea0 | 1367 | void snd_pmac_resume(struct snd_pmac *chip) |
1da177e4 | 1368 | { |
1da177e4 LT |
1369 | snd_pmac_sound_feature(chip, 1); |
1370 | if (chip->resume) | |
1371 | chip->resume(chip); | |
1372 | /* enable CD sound input */ | |
5e12bea0 | 1373 | if (chip->macio_base && chip->is_pbook_G3) |
1da177e4 | 1374 | out_8(chip->macio_base + 0x37, 3); |
5e12bea0 | 1375 | else if (chip->is_pbook_3400) |
1da177e4 | 1376 | in_8(chip->latch_base + 0x190); |
1da177e4 LT |
1377 | |
1378 | snd_pmac_pcm_set_format(chip); | |
1379 | ||
1380 | if (chip->irq >= 0) | |
1381 | enable_irq(chip->irq); | |
1382 | if (chip->tx_irq >= 0) | |
1383 | enable_irq(chip->tx_irq); | |
1384 | if (chip->rx_irq >= 0) | |
1385 | enable_irq(chip->rx_irq); | |
1386 | ||
5e12bea0 | 1387 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); |
1da177e4 LT |
1388 | } |
1389 | ||
8c870933 BH |
1390 | #endif /* CONFIG_PM */ |
1391 |