blob: c93fbbb201fed94645cf9819ec2fcf287b3389fe [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#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>
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070029#include <linux/pci.h>
30#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <sound/core.h>
32#include "pmac.h"
33#include <sound/pcm_params.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <asm/pmac_feature.h>
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070035#include <asm/pci-bridge.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
39static int awacs_freqs[8] = {
40 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
41};
42/* fixed frequency table for tumbler */
43static int tumbler_freqs[1] = {
44 44100
45};
46
T. H. Huthe70515dd52008-01-16 15:57:08 +010047
48/*
49 * we will allocate a single 'emergency' dbdma cmd block to use if the
50 * tx status comes up "DEAD". This happens on some PowerComputing Pmac
51 * clones, either owing to a bug in dbdma or some interaction between
52 * IDE and sound. However, this measure would deal with DEAD status if
53 * it appeared elsewhere.
54 */
55static struct pmac_dbdma emergency_dbdma;
56static int emergency_in_use;
57
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059/*
60 * allocate DBDMA command arrays
61 */
Takashi Iwai65b29f52005-11-17 15:09:46 +010062static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -070063{
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070064 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
65
66 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
67 &rec->dma_base, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 if (rec->space == NULL)
69 return -ENOMEM;
70 rec->size = size;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070071 memset(rec->space, 0, rsize);
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070073 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 return 0;
76}
77
Takashi Iwai65b29f52005-11-17 15:09:46 +010078static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -070079{
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +110080 if (rec->space) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070081 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
82
83 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
84 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070085}
86
87
88/*
89 * pcm stuff
90 */
91
92/*
93 * look up frequency table
94 */
95
Takashi Iwai65b29f52005-11-17 15:09:46 +010096unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
Linus Torvalds1da177e2005-04-16 15:20:36 -070097{
98 int i, ok, found;
99
100 ok = rec->cur_freqs;
101 if (rate > chip->freq_table[0])
102 return 0;
103 found = 0;
104 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
105 if (! (ok & 1)) continue;
106 found = i;
107 if (rate >= chip->freq_table[i])
108 break;
109 }
110 return found;
111}
112
113/*
114 * check whether another stream is active
115 */
116static inline int another_stream(int stream)
117{
118 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
119 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
120}
121
122/*
123 * allocate buffers
124 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100125static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
126 struct snd_pcm_hw_params *hw_params)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127{
128 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
129}
130
131/*
132 * release buffers
133 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100134static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135{
136 snd_pcm_lib_free_pages(subs);
137 return 0;
138}
139
140/*
141 * get a stream of the opposite direction
142 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100143static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144{
145 switch (stream) {
146 case SNDRV_PCM_STREAM_PLAYBACK:
147 return &chip->playback;
148 case SNDRV_PCM_STREAM_CAPTURE:
149 return &chip->capture;
150 default:
151 snd_BUG();
152 return NULL;
153 }
154}
155
156/*
157 * wait while run status is on
158 */
Jesper Juhl77933d72005-07-27 11:46:09 -0700159static inline void
Takashi Iwai65b29f52005-11-17 15:09:46 +0100160snd_pmac_wait_ack(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 int timeout = 50000;
163 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
164 udelay(1);
165}
166
167/*
168 * set the format and rate to the chip.
169 * call the lowlevel function if defined (e.g. for AWACS).
170 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100171static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172{
173 /* set up frequency and format */
174 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
175 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
176 if (chip->set_format)
177 chip->set_format(chip);
178}
179
180/*
181 * stop the DMA transfer
182 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100183static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184{
185 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
186 snd_pmac_wait_ack(rec);
187}
188
189/*
190 * set the command pointer address
191 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100192static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{
194 out_le32(&rec->dma->cmdptr, cmd->addr);
195}
196
197/*
198 * start the DMA
199 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100200static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201{
202 out_le32(&rec->dma->control, status | (status << 16));
203}
204
205
206/*
207 * prepare playback/capture stream
208 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100209static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210{
211 int i;
212 volatile struct dbdma_cmd __iomem *cp;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100213 struct snd_pcm_runtime *runtime = subs->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 int rate_index;
215 long offset;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100216 struct pmac_stream *astr;
Risto Suominen946cda72008-04-16 13:16:05 +0200217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
219 rec->period_size = snd_pcm_lib_period_bytes(subs);
220 rec->nperiods = rec->dma_size / rec->period_size;
221 rec->cur_period = 0;
222 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
223
224 /* set up constraints */
225 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200226 if (! astr)
227 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 astr->cur_freqs = 1 << rate_index;
229 astr->cur_formats = 1 << runtime->format;
230 chip->rate_index = rate_index;
231 chip->format = runtime->format;
232
233 /* We really want to execute a DMA stop command, after the AWACS
234 * is initialized.
235 * For reasons I don't understand, it stops the hissing noise
236 * common to many PowerBook G3 systems and random noise otherwise
237 * captured on iBook2's about every third time. -ReneR
238 */
239 spin_lock_irq(&chip->reg_lock);
240 snd_pmac_dma_stop(rec);
241 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
242 snd_pmac_dma_set_command(rec, &chip->extra_dma);
243 snd_pmac_dma_run(rec, RUN);
244 spin_unlock_irq(&chip->reg_lock);
245 mdelay(5);
246 spin_lock_irq(&chip->reg_lock);
247 /* continuous DMA memory type doesn't provide the physical address,
248 * so we need to resolve the address here...
249 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700250 offset = runtime->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
252 st_le32(&cp->phy_addr, offset);
253 st_le16(&cp->req_count, rec->period_size);
254 /*st_le16(&cp->res_count, 0);*/
255 st_le16(&cp->xfer_status, 0);
256 offset += rec->period_size;
257 }
258 /* make loop */
259 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
260 st_le32(&cp->cmd_dep, rec->cmd.addr);
261
262 snd_pmac_dma_stop(rec);
263 snd_pmac_dma_set_command(rec, &rec->cmd);
264 spin_unlock_irq(&chip->reg_lock);
265
266 return 0;
267}
268
269
270/*
271 * PCM trigger/stop
272 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100273static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
274 struct snd_pcm_substream *subs, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275{
276 volatile struct dbdma_cmd __iomem *cp;
277 int i, command;
278
279 switch (cmd) {
280 case SNDRV_PCM_TRIGGER_START:
281 case SNDRV_PCM_TRIGGER_RESUME:
282 if (rec->running)
283 return -EBUSY;
284 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
285 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
286 spin_lock(&chip->reg_lock);
287 snd_pmac_beep_stop(chip);
288 snd_pmac_pcm_set_format(chip);
289 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
290 out_le16(&cp->command, command);
291 snd_pmac_dma_set_command(rec, &rec->cmd);
292 (void)in_le32(&rec->dma->status);
293 snd_pmac_dma_run(rec, RUN|WAKE);
294 rec->running = 1;
295 spin_unlock(&chip->reg_lock);
296 break;
297
298 case SNDRV_PCM_TRIGGER_STOP:
299 case SNDRV_PCM_TRIGGER_SUSPEND:
300 spin_lock(&chip->reg_lock);
301 rec->running = 0;
Takashi Iwai6da67112009-02-05 16:02:46 +0100302 /*printk(KERN_DEBUG "stopped!!\n");*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 snd_pmac_dma_stop(rec);
304 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
305 out_le16(&cp->command, DBDMA_STOP);
306 spin_unlock(&chip->reg_lock);
307 break;
308
309 default:
310 return -EINVAL;
311 }
312
313 return 0;
314}
315
316/*
317 * return the current pointer
318 */
319inline
Takashi Iwai65b29f52005-11-17 15:09:46 +0100320static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
321 struct pmac_stream *rec,
322 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323{
324 int count = 0;
325
326#if 1 /* hmm.. how can we get the current dma pointer?? */
327 int stat;
328 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
329 stat = ld_le16(&cp->xfer_status);
330 if (stat & (ACTIVE|DEAD)) {
331 count = in_le16(&cp->res_count);
332 if (count)
333 count = rec->period_size - count;
334 }
335#endif
336 count += rec->cur_period * rec->period_size;
Takashi Iwai6da67112009-02-05 16:02:46 +0100337 /*printk(KERN_DEBUG "pointer=%d\n", count);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 return bytes_to_frames(subs->runtime, count);
339}
340
341/*
342 * playback
343 */
344
Takashi Iwai65b29f52005-11-17 15:09:46 +0100345static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100347 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
349}
350
Takashi Iwai65b29f52005-11-17 15:09:46 +0100351static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 int cmd)
353{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100354 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
356}
357
Takashi Iwai65b29f52005-11-17 15:09:46 +0100358static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100360 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
362}
363
364
365/*
366 * capture
367 */
368
Takashi Iwai65b29f52005-11-17 15:09:46 +0100369static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100371 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
373}
374
Takashi Iwai65b29f52005-11-17 15:09:46 +0100375static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 int cmd)
377{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100378 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
380}
381
Takashi Iwai65b29f52005-11-17 15:09:46 +0100382static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100384 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
386}
387
388
389/*
T. H. Huthe70515dd52008-01-16 15:57:08 +0100390 * Handle DEAD DMA transfers:
391 * if the TX status comes up "DEAD" - reported on some Power Computing machines
392 * we need to re-start the dbdma - but from a different physical start address
393 * and with a different transfer length. It would get very messy to do this
394 * with the normal dbdma_cmd blocks - we would have to re-write the buffer start
395 * addresses each time. So, we will keep a single dbdma_cmd block which can be
396 * fiddled with.
397 * When DEAD status is first reported the content of the faulted dbdma block is
398 * copied into the emergency buffer and we note that the buffer is in use.
399 * we then bump the start physical address by the amount that was successfully
400 * output before it died.
401 * On any subsequent DEAD result we just do the bump-ups (we know that we are
402 * already using the emergency dbdma_cmd).
403 * CHECK: this just tries to "do it". It is possible that we should abandon
404 * xfers when the number of residual bytes gets below a certain value - I can
405 * see that this might cause a loop-forever if a too small transfer causes
406 * DEAD status. However this is a TODO for now - we'll see what gets reported.
407 * When we get a successful transfer result with the emergency buffer we just
408 * pretend that it completed using the original dmdma_cmd and carry on. The
409 * 'next_cmd' field will already point back to the original loop of blocks.
410 */
411static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
412 volatile struct dbdma_cmd __iomem *cp)
413{
414 unsigned short req, res ;
415 unsigned int phy ;
416
417 /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */
418
419 /* to clear DEAD status we must first clear RUN
420 set it to quiescent to be on the safe side */
421 (void)in_le32(&rec->dma->status);
422 out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
423
424 if (!emergency_in_use) { /* new problem */
425 memcpy((void *)emergency_dbdma.cmds, (void *)cp,
426 sizeof(struct dbdma_cmd));
427 emergency_in_use = 1;
428 st_le16(&cp->xfer_status, 0);
429 st_le16(&cp->req_count, rec->period_size);
430 cp = emergency_dbdma.cmds;
431 }
432
433 /* now bump the values to reflect the amount
434 we haven't yet shifted */
435 req = ld_le16(&cp->req_count);
436 res = ld_le16(&cp->res_count);
437 phy = ld_le32(&cp->phy_addr);
438 phy += (req - res);
439 st_le16(&cp->req_count, res);
440 st_le16(&cp->res_count, 0);
441 st_le16(&cp->xfer_status, 0);
442 st_le32(&cp->phy_addr, phy);
443
444 st_le32(&cp->cmd_dep, rec->cmd.addr
445 + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
446
447 st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
448
449 /* point at our patched up command block */
450 out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
451
452 /* we must re-start the controller */
453 (void)in_le32(&rec->dma->status);
454 /* should complete clearing the DEAD status */
455 out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
456}
457
458/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 * update playback/capture pointer from interrupts
460 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100461static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462{
463 volatile struct dbdma_cmd __iomem *cp;
464 int c;
465 int stat;
466
467 spin_lock(&chip->reg_lock);
468 if (rec->running) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
T. H. Huthe70515dd52008-01-16 15:57:08 +0100470
471 if (emergency_in_use) /* already using DEAD xfer? */
472 cp = emergency_dbdma.cmds;
473 else
474 cp = &rec->cmd.cmds[rec->cur_period];
475
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 stat = ld_le16(&cp->xfer_status);
T. H. Huthe70515dd52008-01-16 15:57:08 +0100477
478 if (stat & DEAD) {
479 snd_pmac_pcm_dead_xfer(rec, cp);
480 break; /* this block is still going */
481 }
482
483 if (emergency_in_use)
484 emergency_in_use = 0 ; /* done that */
485
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 if (! (stat & ACTIVE))
487 break;
T. H. Huthe70515dd52008-01-16 15:57:08 +0100488
Takashi Iwai6da67112009-02-05 16:02:46 +0100489 /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 st_le16(&cp->xfer_status, 0);
491 st_le16(&cp->req_count, rec->period_size);
492 /*st_le16(&cp->res_count, 0);*/
493 rec->cur_period++;
494 if (rec->cur_period >= rec->nperiods) {
495 rec->cur_period = 0;
T. H. Huthe70515dd52008-01-16 15:57:08 +0100496 }
497
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 spin_unlock(&chip->reg_lock);
499 snd_pcm_period_elapsed(rec->substream);
500 spin_lock(&chip->reg_lock);
501 }
502 }
503 spin_unlock(&chip->reg_lock);
504}
505
506
507/*
508 * hw info
509 */
510
Takashi Iwai65b29f52005-11-17 15:09:46 +0100511static struct snd_pcm_hardware snd_pmac_playback =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512{
513 .info = (SNDRV_PCM_INFO_INTERLEAVED |
514 SNDRV_PCM_INFO_MMAP |
515 SNDRV_PCM_INFO_MMAP_VALID |
516 SNDRV_PCM_INFO_RESUME),
517 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
518 .rates = SNDRV_PCM_RATE_8000_44100,
519 .rate_min = 7350,
520 .rate_max = 44100,
521 .channels_min = 2,
522 .channels_max = 2,
523 .buffer_bytes_max = 131072,
524 .period_bytes_min = 256,
525 .period_bytes_max = 16384,
526 .periods_min = 3,
527 .periods_max = PMAC_MAX_FRAGS,
528};
529
Takashi Iwai65b29f52005-11-17 15:09:46 +0100530static struct snd_pcm_hardware snd_pmac_capture =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531{
532 .info = (SNDRV_PCM_INFO_INTERLEAVED |
533 SNDRV_PCM_INFO_MMAP |
534 SNDRV_PCM_INFO_MMAP_VALID |
535 SNDRV_PCM_INFO_RESUME),
536 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
537 .rates = SNDRV_PCM_RATE_8000_44100,
538 .rate_min = 7350,
539 .rate_max = 44100,
540 .channels_min = 2,
541 .channels_max = 2,
542 .buffer_bytes_max = 131072,
543 .period_bytes_min = 256,
544 .period_bytes_max = 16384,
545 .periods_min = 3,
546 .periods_max = PMAC_MAX_FRAGS,
547};
548
549
550#if 0 // NYI
Takashi Iwai65b29f52005-11-17 15:09:46 +0100551static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
552 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100554 struct snd_pmac *chip = rule->private;
555 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 int i, freq_table[8], num_freqs;
557
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200558 if (! rec)
559 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560 num_freqs = 0;
561 for (i = chip->num_freqs - 1; i >= 0; i--) {
562 if (rec->cur_freqs & (1 << i))
563 freq_table[num_freqs++] = chip->freq_table[i];
564 }
565
566 return snd_interval_list(hw_param_interval(params, rule->var),
567 num_freqs, freq_table, 0);
568}
569
Takashi Iwai65b29f52005-11-17 15:09:46 +0100570static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
571 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100573 struct snd_pmac *chip = rule->private;
574 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200576 if (! rec)
577 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
579 rec->cur_formats);
580}
581#endif // NYI
582
Takashi Iwai65b29f52005-11-17 15:09:46 +0100583static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
584 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100586 struct snd_pcm_runtime *runtime = subs->runtime;
Clemens Ladisch918f3a02007-08-13 17:40:54 +0200587 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588
589 /* look up frequency table and fill bit mask */
590 runtime->hw.rates = 0;
Clemens Ladisch918f3a02007-08-13 17:40:54 +0200591 for (i = 0; i < chip->num_freqs; i++)
592 if (chip->freqs_ok & (1 << i))
593 runtime->hw.rates |=
594 snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
596 /* check for minimum and maximum rates */
597 for (i = 0; i < chip->num_freqs; i++) {
598 if (chip->freqs_ok & (1 << i)) {
599 runtime->hw.rate_max = chip->freq_table[i];
600 break;
601 }
602 }
603 for (i = chip->num_freqs - 1; i >= 0; i--) {
604 if (chip->freqs_ok & (1 << i)) {
605 runtime->hw.rate_min = chip->freq_table[i];
606 break;
607 }
608 }
609 runtime->hw.formats = chip->formats_ok;
610 if (chip->can_capture) {
611 if (! chip->can_duplex)
612 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
613 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
614 }
615 runtime->private_data = rec;
616 rec->substream = subs;
617
618#if 0 /* FIXME: still under development.. */
619 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
620 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
621 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
622 snd_pmac_hw_rule_format, chip, rec->stream, -1);
623#endif
624
625 runtime->hw.periods_max = rec->cmd.size - 1;
626
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 /* constraints to fix choppy sound */
628 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
629 return 0;
630}
631
Takashi Iwai65b29f52005-11-17 15:09:46 +0100632static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
633 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100635 struct pmac_stream *astr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
637 snd_pmac_dma_stop(rec);
638
639 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200640 if (! astr)
641 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642
643 /* reset constraints */
644 astr->cur_freqs = chip->freqs_ok;
645 astr->cur_formats = chip->formats_ok;
Risto Suominen946cda72008-04-16 13:16:05 +0200646
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 return 0;
648}
649
Takashi Iwai65b29f52005-11-17 15:09:46 +0100650static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100652 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
654 subs->runtime->hw = snd_pmac_playback;
655 return snd_pmac_pcm_open(chip, &chip->playback, subs);
656}
657
Takashi Iwai65b29f52005-11-17 15:09:46 +0100658static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100660 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661
662 subs->runtime->hw = snd_pmac_capture;
663 return snd_pmac_pcm_open(chip, &chip->capture, subs);
664}
665
Takashi Iwai65b29f52005-11-17 15:09:46 +0100666static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100668 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670 return snd_pmac_pcm_close(chip, &chip->playback, subs);
671}
672
Takashi Iwai65b29f52005-11-17 15:09:46 +0100673static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100675 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
677 return snd_pmac_pcm_close(chip, &chip->capture, subs);
678}
679
680/*
681 */
682
Takashi Iwai65b29f52005-11-17 15:09:46 +0100683static struct snd_pcm_ops snd_pmac_playback_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 .open = snd_pmac_playback_open,
685 .close = snd_pmac_playback_close,
686 .ioctl = snd_pcm_lib_ioctl,
687 .hw_params = snd_pmac_pcm_hw_params,
688 .hw_free = snd_pmac_pcm_hw_free,
689 .prepare = snd_pmac_playback_prepare,
690 .trigger = snd_pmac_playback_trigger,
691 .pointer = snd_pmac_playback_pointer,
692};
693
Takashi Iwai65b29f52005-11-17 15:09:46 +0100694static struct snd_pcm_ops snd_pmac_capture_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 .open = snd_pmac_capture_open,
696 .close = snd_pmac_capture_close,
697 .ioctl = snd_pcm_lib_ioctl,
698 .hw_params = snd_pmac_pcm_hw_params,
699 .hw_free = snd_pmac_pcm_hw_free,
700 .prepare = snd_pmac_capture_prepare,
701 .trigger = snd_pmac_capture_trigger,
702 .pointer = snd_pmac_capture_pointer,
703};
704
Bill Pemberton15afafc2012-12-06 12:35:23 -0500705int snd_pmac_pcm_new(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100707 struct snd_pcm *pcm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 int err;
709 int num_captures = 1;
710
711 if (! chip->can_capture)
712 num_captures = 0;
713 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
714 if (err < 0)
715 return err;
716
717 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
718 if (chip->can_capture)
719 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
720
721 pcm->private_data = chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
723 strcpy(pcm->name, chip->card->shortname);
724 chip->pcm = pcm;
725
726 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
727 if (chip->can_byte_swap)
728 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
729
730 chip->playback.cur_formats = chip->formats_ok;
731 chip->capture.cur_formats = chip->formats_ok;
732 chip->playback.cur_freqs = chip->freqs_ok;
733 chip->capture.cur_freqs = chip->freqs_ok;
734
735 /* preallocate 64k buffer */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700736 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
737 &chip->pdev->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 64 * 1024, 64 * 1024);
739
740 return 0;
741}
742
743
Takashi Iwai65b29f52005-11-17 15:09:46 +0100744static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745{
746 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
747 snd_pmac_wait_ack(&chip->playback);
748 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
749 snd_pmac_wait_ack(&chip->capture);
750}
751
752
753/*
754 * handling beep
755 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100756void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100758 struct pmac_stream *rec = &chip->playback;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
760 snd_pmac_dma_stop(rec);
761 st_le16(&chip->extra_dma.cmds->req_count, bytes);
762 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
763 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
764 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
765 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
766 out_le32(&chip->awacs->control,
767 (in_le32(&chip->awacs->control) & ~0x1f00)
768 | (speed << 8));
769 out_le32(&chip->awacs->byteswap, 0);
770 snd_pmac_dma_set_command(rec, &chip->extra_dma);
771 snd_pmac_dma_run(rec, RUN);
772}
773
Takashi Iwai65b29f52005-11-17 15:09:46 +0100774void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775{
776 snd_pmac_dma_stop(&chip->playback);
777 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
778 snd_pmac_pcm_set_format(chip); /* reset format */
779}
780
781
782/*
783 * interrupt handlers
784 */
785static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100786snd_pmac_tx_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100788 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789 snd_pmac_pcm_update(chip, &chip->playback);
790 return IRQ_HANDLED;
791}
792
793
794static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100795snd_pmac_rx_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100797 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798 snd_pmac_pcm_update(chip, &chip->capture);
799 return IRQ_HANDLED;
800}
801
802
803static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100804snd_pmac_ctrl_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100806 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 int ctrl = in_le32(&chip->awacs->control);
808
Takashi Iwai6da67112009-02-05 16:02:46 +0100809 /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810 if (ctrl & MASK_PORTCHG) {
811 /* do something when headphone is plugged/unplugged? */
812 if (chip->update_automute)
813 chip->update_automute(chip, 1);
814 }
815 if (ctrl & MASK_CNTLERR) {
816 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
817 if (err && chip->model <= PMAC_SCREAMER)
818 snd_printk(KERN_DEBUG "error %x\n", err);
819 }
820 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
821 out_le32(&chip->awacs->control, ctrl);
822 return IRQ_HANDLED;
823}
824
825
826/*
827 * a wrapper to feature call for compatibility
828 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100829static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830{
David Woodhouse4e6a06ee2005-08-17 11:36:35 +0100831 if (ppc_md.feature_call)
832 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834
835/*
836 * release resources
837 */
838
Takashi Iwai65b29f52005-11-17 15:09:46 +0100839static int snd_pmac_free(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841 /* stop sounds */
842 if (chip->initialized) {
843 snd_pmac_dbdma_reset(chip);
844 /* disable interrupts from awacs interface */
845 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
846 }
847
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +1000848 if (chip->node)
849 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850
851 /* clean up mixer if any */
852 if (chip->mixer_free)
853 chip->mixer_free(chip);
854
855 snd_pmac_detach_beep(chip);
856
857 /* release resources */
858 if (chip->irq >= 0)
859 free_irq(chip->irq, (void*)chip);
860 if (chip->tx_irq >= 0)
861 free_irq(chip->tx_irq, (void*)chip);
862 if (chip->rx_irq >= 0)
863 free_irq(chip->rx_irq, (void*)chip);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700864 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
865 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
866 snd_pmac_dbdma_free(chip, &chip->extra_dma);
T. H. Huthe70515dd52008-01-16 15:57:08 +0100867 snd_pmac_dbdma_free(chip, &emergency_dbdma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 if (chip->macio_base)
869 iounmap(chip->macio_base);
870 if (chip->latch_base)
871 iounmap(chip->latch_base);
872 if (chip->awacs)
873 iounmap(chip->awacs);
874 if (chip->playback.dma)
875 iounmap(chip->playback.dma);
876 if (chip->capture.dma)
877 iounmap(chip->capture.dma);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 if (chip->node) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700880 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 for (i = 0; i < 3; i++) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100882 if (chip->requested & (1 << i))
883 release_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -0700884 resource_size(&chip->rsrc[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 }
886 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100887
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700888 if (chip->pdev)
889 pci_dev_put(chip->pdev);
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000890 of_node_put(chip->node);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891 kfree(chip);
892 return 0;
893}
894
895
896/*
897 * free the device
898 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100899static int snd_pmac_dev_free(struct snd_device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100901 struct snd_pmac *chip = device->device_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902 return snd_pmac_free(chip);
903}
904
905
906/*
907 * check the machine support byteswap (little-endian)
908 */
909
Bill Pemberton15afafc2012-12-06 12:35:23 -0500910static void detect_byte_swap(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911{
912 struct device_node *mio;
913
914 /* if seems that Keylargo can't byte-swap */
915 for (mio = chip->node->parent; mio; mio = mio->parent) {
916 if (strcmp(mio->name, "mac-io") == 0) {
Stephen Rothwell55b61fe2007-05-03 17:26:52 +1000917 if (of_device_is_compatible(mio, "Keylargo"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 chip->can_byte_swap = 0;
919 break;
920 }
921 }
922
923 /* it seems the Pismo & iBook can't byte-swap in hardware. */
Grant Likely71a157e2010-02-01 21:34:14 -0700924 if (of_machine_is_compatible("PowerBook3,1") ||
925 of_machine_is_compatible("PowerBook2,1"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 chip->can_byte_swap = 0 ;
927
Grant Likely71a157e2010-02-01 21:34:14 -0700928 if (of_machine_is_compatible("PowerBook2,1"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 chip->can_duplex = 0;
930}
931
932
933/*
934 * detect a sound chip
935 */
Bill Pemberton15afafc2012-12-06 12:35:23 -0500936static int snd_pmac_detect(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937{
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000938 struct device_node *sound;
939 struct device_node *dn;
Stephen Rothwellc4f55b32007-04-03 22:39:14 +1000940 const unsigned int *prop;
941 unsigned int l;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700942 struct macio_chip* macio;
943
Benjamin Herrenschmidte8222502006-03-28 23:15:54 +1100944 if (!machine_is(powermac))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945 return -ENODEV;
946
947 chip->subframe = 0;
948 chip->revision = 0;
949 chip->freqs_ok = 0xff; /* all ok */
950 chip->model = PMAC_AWACS;
951 chip->can_byte_swap = 1;
952 chip->can_duplex = 1;
953 chip->can_capture = 1;
954 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
955 chip->freq_table = awacs_freqs;
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +1100956 chip->pdev = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
958 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
959
960 /* check machine type */
Grant Likely71a157e2010-02-01 21:34:14 -0700961 if (of_machine_is_compatible("AAPL,3400/2400")
962 || of_machine_is_compatible("AAPL,3500"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963 chip->is_pbook_3400 = 1;
Grant Likely71a157e2010-02-01 21:34:14 -0700964 else if (of_machine_is_compatible("PowerBook1,1")
965 || of_machine_is_compatible("AAPL,PowerBook1998"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 chip->is_pbook_G3 = 1;
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000967 chip->node = of_find_node_by_name(NULL, "awacs");
968 sound = of_node_get(chip->node);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
970 /*
971 * powermac G3 models have a node called "davbus"
972 * with a child called "sound".
973 */
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200974 if (!chip->node)
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000975 chip->node = of_find_node_by_name(NULL, "davbus");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 /*
977 * if we didn't find a davbus device, try 'i2s-a' since
978 * this seems to be what iBooks have
979 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700980 if (! chip->node) {
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000981 chip->node = of_find_node_by_name(NULL, "i2s-a");
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200982 if (chip->node && chip->node->parent &&
983 chip->node->parent->parent) {
Stephen Rothwell55b61fe2007-05-03 17:26:52 +1000984 if (of_device_is_compatible(chip->node->parent->parent,
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700985 "K2-Keylargo"))
986 chip->is_k2 = 1;
987 }
988 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 if (! chip->node)
990 return -ENODEV;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700991
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200992 if (!sound) {
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000993 sound = of_find_node_by_name(NULL, "sound");
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200994 while (sound && sound->parent != chip->node)
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000995 sound = of_find_node_by_name(sound, "sound");
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200996 }
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000997 if (! sound) {
998 of_node_put(chip->node);
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +1000999 chip->node = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 return -ENODEV;
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001001 }
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001002 prop = of_get_property(sound, "sub-frame", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003 if (prop && *prop < 16)
1004 chip->subframe = *prop;
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001005 prop = of_get_property(sound, "layout-id", NULL);
Johannes Berg55c385a2006-06-21 15:43:44 +02001006 if (prop) {
1007 /* partly deprecate snd-powermac, for those machines
1008 * that have a layout-id property for now */
1009 printk(KERN_INFO "snd-powermac no longer handles any "
1010 "machines with a layout-id property "
1011 "in the device-tree, use snd-aoa.\n");
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +10001012 of_node_put(sound);
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001013 of_node_put(chip->node);
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +10001014 chip->node = NULL;
Johannes Berg55c385a2006-06-21 15:43:44 +02001015 return -ENODEV;
1016 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 /* This should be verified on older screamers */
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001018 if (of_device_is_compatible(sound, "screamer")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 chip->model = PMAC_SCREAMER;
1020 // chip->can_byte_swap = 0; /* FIXME: check this */
1021 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001022 if (of_device_is_compatible(sound, "burgundy")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 chip->model = PMAC_BURGUNDY;
1024 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1025 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001026 if (of_device_is_compatible(sound, "daca")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 chip->model = PMAC_DACA;
1028 chip->can_capture = 0; /* no capture */
1029 chip->can_duplex = 0;
1030 // chip->can_byte_swap = 0; /* FIXME: check this */
1031 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1032 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001033 if (of_device_is_compatible(sound, "tumbler")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 chip->model = PMAC_TUMBLER;
Grant Likely71a157e2010-02-01 21:34:14 -07001035 chip->can_capture = of_machine_is_compatible("PowerMac4,2")
Risto Suominen8460ae72011-02-28 10:38:45 +02001036 || of_machine_is_compatible("PowerBook3,2")
1037 || of_machine_is_compatible("PowerBook3,3")
1038 || of_machine_is_compatible("PowerBook4,1")
1039 || of_machine_is_compatible("PowerBook4,2")
1040 || of_machine_is_compatible("PowerBook4,3");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 chip->can_duplex = 0;
1042 // chip->can_byte_swap = 0; /* FIXME: check this */
1043 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1044 chip->freq_table = tumbler_freqs;
1045 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1046 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001047 if (of_device_is_compatible(sound, "snapper")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048 chip->model = PMAC_SNAPPER;
1049 // chip->can_byte_swap = 0; /* FIXME: check this */
1050 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1051 chip->freq_table = tumbler_freqs;
1052 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1053 }
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001054 prop = of_get_property(sound, "device-id", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 if (prop)
1056 chip->device_id = *prop;
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001057 dn = of_find_node_by_name(NULL, "perch");
1058 chip->has_iic = (dn != NULL);
1059 of_node_put(dn);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001061 /* We need the PCI device for DMA allocations, let's use a crude method
1062 * for now ...
1063 */
1064 macio = macio_find(chip->node, macio_unknown);
1065 if (macio == NULL)
1066 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1067 else {
1068 struct pci_dev *pdev = NULL;
1069
1070 for_each_pci_dev(pdev) {
1071 struct device_node *np = pci_device_to_OF_node(pdev);
1072 if (np && np == macio->of_node) {
1073 chip->pdev = pdev;
1074 break;
1075 }
1076 }
1077 }
1078 if (chip->pdev == NULL)
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +02001079 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1080 " device !\n");
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001081
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082 detect_byte_swap(chip);
1083
1084 /* look for a property saying what sample rates
1085 are available */
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001086 prop = of_get_property(sound, "sample-rates", &l);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 if (! prop)
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001088 prop = of_get_property(sound, "output-frame-rates", &l);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089 if (prop) {
1090 int i;
1091 chip->freqs_ok = 0;
1092 for (l /= sizeof(int); l > 0; --l) {
1093 unsigned int r = *prop++;
1094 /* Apple 'Fixed' format */
1095 if (r >= 0x10000)
1096 r >>= 16;
1097 for (i = 0; i < chip->num_freqs; ++i) {
1098 if (r == chip->freq_table[i]) {
1099 chip->freqs_ok |= (1 << i);
1100 break;
1101 }
1102 }
1103 }
1104 } else {
1105 /* assume only 44.1khz */
1106 chip->freqs_ok = 1;
1107 }
1108
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001109 of_node_put(sound);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 return 0;
1111}
1112
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113#ifdef PMAC_SUPPORT_AUTOMUTE
1114/*
1115 * auto-mute
1116 */
Takashi Iwai65b29f52005-11-17 15:09:46 +01001117static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1118 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001120 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121 ucontrol->value.integer.value[0] = chip->auto_mute;
1122 return 0;
1123}
1124
Takashi Iwai65b29f52005-11-17 15:09:46 +01001125static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1126 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001128 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
Takashi Iwaid4079ac2007-11-15 16:14:12 +01001130 chip->auto_mute = !!ucontrol->value.integer.value[0];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 if (chip->update_automute)
1132 chip->update_automute(chip, 1);
1133 return 1;
1134 }
1135 return 0;
1136}
1137
Takashi Iwai65b29f52005-11-17 15:09:46 +01001138static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1139 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001141 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 if (chip->detect_headphone)
1143 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1144 else
1145 ucontrol->value.integer.value[0] = 0;
1146 return 0;
1147}
1148
Bill Pemberton15afafc2012-12-06 12:35:23 -05001149static struct snd_kcontrol_new auto_mute_controls[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1151 .name = "Auto Mute Switch",
1152 .info = snd_pmac_boolean_mono_info,
1153 .get = pmac_auto_mute_get,
1154 .put = pmac_auto_mute_put,
1155 },
1156 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1157 .name = "Headphone Detection",
1158 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1159 .info = snd_pmac_boolean_mono_info,
1160 .get = pmac_hp_detect_get,
1161 },
1162};
1163
Bill Pemberton15afafc2012-12-06 12:35:23 -05001164int snd_pmac_add_automute(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165{
1166 int err;
1167 chip->auto_mute = 1;
1168 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001169 if (err < 0) {
1170 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171 return err;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001172 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1174 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1175}
1176#endif /* PMAC_SUPPORT_AUTOMUTE */
1177
1178/*
1179 * create and detect a pmac chip record
1180 */
Bill Pemberton15afafc2012-12-06 12:35:23 -05001181int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001183 struct snd_pmac *chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184 struct device_node *np;
1185 int i, err;
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001186 unsigned int irq;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001187 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
Takashi Iwai65b29f52005-11-17 15:09:46 +01001188 static struct snd_device_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 .dev_free = snd_pmac_dev_free,
1190 };
1191
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 *chip_return = NULL;
1193
Takashi Iwai561b2202005-09-09 14:22:34 +02001194 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 if (chip == NULL)
1196 return -ENOMEM;
1197 chip->card = card;
1198
1199 spin_lock_init(&chip->reg_lock);
1200 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1201
1202 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1203 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1204
1205 if ((err = snd_pmac_detect(chip)) < 0)
1206 goto __error;
1207
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001208 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1209 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
T. H. Huthe70515dd52008-01-16 15:57:08 +01001210 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1211 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212 err = -ENOMEM;
1213 goto __error;
1214 }
1215
1216 np = chip->node;
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001217 chip->requested = 0;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001218 if (chip->is_k2) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001219 static char *rnames[] = {
1220 "Sound Control", "Sound DMA" };
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001221 for (i = 0; i < 2; i ++) {
1222 if (of_address_to_resource(np->parent, i,
1223 &chip->rsrc[i])) {
1224 printk(KERN_ERR "snd: can't translate rsrc "
1225 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001226 err = -ENODEV;
1227 goto __error;
1228 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001229 if (request_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -07001230 resource_size(&chip->rsrc[i]),
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001231 rnames[i]) == NULL) {
1232 printk(KERN_ERR "snd: can't request rsrc "
Joe Perches2fb50f12010-11-12 13:38:04 -08001233 " %d (%s: %pR)\n",
1234 i, rnames[i], &chip->rsrc[i]);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001235 err = -ENODEV;
1236 goto __error;
1237 }
1238 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001239 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001240 ctrl_addr = chip->rsrc[0].start;
1241 txdma_addr = chip->rsrc[1].start;
1242 rxdma_addr = txdma_addr + 0x100;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001243 } else {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001244 static char *rnames[] = {
1245 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001246 for (i = 0; i < 3; i ++) {
Benjamin Herrenschmidt88356e92006-02-01 03:04:43 -08001247 if (of_address_to_resource(np, i,
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001248 &chip->rsrc[i])) {
1249 printk(KERN_ERR "snd: can't translate rsrc "
1250 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001251 err = -ENODEV;
1252 goto __error;
1253 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001254 if (request_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -07001255 resource_size(&chip->rsrc[i]),
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001256 rnames[i]) == NULL) {
1257 printk(KERN_ERR "snd: can't request rsrc "
Joe Perches2fb50f12010-11-12 13:38:04 -08001258 " %d (%s: %pR)\n",
1259 i, rnames[i], &chip->rsrc[i]);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001260 err = -ENODEV;
1261 goto __error;
1262 }
1263 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001264 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001265 ctrl_addr = chip->rsrc[0].start;
1266 txdma_addr = chip->rsrc[1].start;
1267 rxdma_addr = chip->rsrc[2].start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 }
1269
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001270 chip->awacs = ioremap(ctrl_addr, 0x1000);
1271 chip->playback.dma = ioremap(txdma_addr, 0x100);
1272 chip->capture.dma = ioremap(rxdma_addr, 0x100);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 if (chip->model <= PMAC_BURGUNDY) {
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001274 irq = irq_of_parse_and_map(np, 0);
1275 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 "PMac", (void*)chip)) {
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001277 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1278 irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 err = -EBUSY;
1280 goto __error;
1281 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001282 chip->irq = irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001284 irq = irq_of_parse_and_map(np, 1);
1285 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1286 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287 err = -EBUSY;
1288 goto __error;
1289 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001290 chip->tx_irq = irq;
1291 irq = irq_of_parse_and_map(np, 2);
1292 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1293 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294 err = -EBUSY;
1295 goto __error;
1296 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001297 chip->rx_irq = irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298
1299 snd_pmac_sound_feature(chip, 1);
1300
Risto Suominen9a4f20f2008-04-16 13:15:38 +02001301 /* reset & enable interrupts */
1302 if (chip->model <= PMAC_BURGUNDY)
1303 out_le32(&chip->awacs->control, chip->control_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304
1305 /* Powerbooks have odd ways of enabling inputs such as
1306 an expansion-bay CD or sound from an internal modem
1307 or a PC-card modem. */
1308 if (chip->is_pbook_3400) {
1309 /* Enable CD and PC-card sound inputs. */
1310 /* This is done by reading from address
1311 * f301a000, + 0x10 to enable the expansion-bay
1312 * CD sound input, + 0x80 to enable the PC-card
1313 * sound input. The 0x100 enables the SCSI bus
1314 * terminator power.
1315 */
1316 chip->latch_base = ioremap (0xf301a000, 0x1000);
1317 in_8(chip->latch_base + 0x190);
1318 } else if (chip->is_pbook_G3) {
1319 struct device_node* mio;
1320 for (mio = chip->node->parent; mio; mio = mio->parent) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001321 if (strcmp(mio->name, "mac-io") == 0) {
1322 struct resource r;
1323 if (of_address_to_resource(mio, 0, &r) == 0)
1324 chip->macio_base =
1325 ioremap(r.start, 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326 break;
1327 }
1328 }
1329 /* Enable CD sound input. */
1330 /* The relevant bits for writing to this byte are 0x8f.
1331 * I haven't found out what the 0x80 bit does.
1332 * For the 0xf bits, writing 3 or 7 enables the CD
1333 * input, any other value disables it. Values
1334 * 1, 3, 5, 7 enable the microphone. Values 0, 2,
1335 * 4, 6, 8 - f enable the input from the modem.
1336 */
1337 if (chip->macio_base)
1338 out_8(chip->macio_base + 0x37, 3);
1339 }
1340
1341 /* Reset dbdma channels */
1342 snd_pmac_dbdma_reset(chip);
1343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1345 goto __error;
1346
1347 *chip_return = chip;
1348 return 0;
1349
1350 __error:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 snd_pmac_free(chip);
1352 return err;
1353}
1354
1355
1356/*
1357 * sleep notify for powerbook
1358 */
1359
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001360#ifdef CONFIG_PM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361
1362/*
1363 * Save state when going to sleep, restore it afterwards.
1364 */
1365
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001366void snd_pmac_suspend(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 unsigned long flags;
1369
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001370 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 if (chip->suspend)
1372 chip->suspend(chip);
1373 snd_pcm_suspend_all(chip->pcm);
1374 spin_lock_irqsave(&chip->reg_lock, flags);
1375 snd_pmac_beep_stop(chip);
1376 spin_unlock_irqrestore(&chip->reg_lock, flags);
1377 if (chip->irq >= 0)
1378 disable_irq(chip->irq);
1379 if (chip->tx_irq >= 0)
1380 disable_irq(chip->tx_irq);
1381 if (chip->rx_irq >= 0)
1382 disable_irq(chip->rx_irq);
1383 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384}
1385
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001386void snd_pmac_resume(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388 snd_pmac_sound_feature(chip, 1);
1389 if (chip->resume)
1390 chip->resume(chip);
1391 /* enable CD sound input */
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001392 if (chip->macio_base && chip->is_pbook_G3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 out_8(chip->macio_base + 0x37, 3);
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001394 else if (chip->is_pbook_3400)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395 in_8(chip->latch_base + 0x190);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396
1397 snd_pmac_pcm_set_format(chip);
1398
1399 if (chip->irq >= 0)
1400 enable_irq(chip->irq);
1401 if (chip->tx_irq >= 0)
1402 enable_irq(chip->tx_irq);
1403 if (chip->rx_irq >= 0)
1404 enable_irq(chip->rx_irq);
1405
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001406 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407}
1408
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001409#endif /* CONFIG_PM */
1410