blob: 5a13b22748b217b08571cdd90d3f8a8078ac8223 [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>
Rob Herring5af50732013-09-17 14:28:33 -050031#include <linux/of_address.h>
32#include <linux/of_irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <sound/core.h>
34#include "pmac.h"
35#include <sound/pcm_params.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036#include <asm/pmac_feature.h>
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070037#include <asm/pci-bridge.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
41static int awacs_freqs[8] = {
42 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
43};
44/* fixed frequency table for tumbler */
45static int tumbler_freqs[1] = {
46 44100
47};
48
T. H. Huthe70515dd52008-01-16 15:57:08 +010049
50/*
51 * we will allocate a single 'emergency' dbdma cmd block to use if the
52 * tx status comes up "DEAD". This happens on some PowerComputing Pmac
53 * clones, either owing to a bug in dbdma or some interaction between
54 * IDE and sound. However, this measure would deal with DEAD status if
55 * it appeared elsewhere.
56 */
57static struct pmac_dbdma emergency_dbdma;
58static int emergency_in_use;
59
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061/*
62 * allocate DBDMA command arrays
63 */
Takashi Iwai65b29f52005-11-17 15:09:46 +010064static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -070065{
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070066 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
67
68 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
69 &rec->dma_base, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 if (rec->space == NULL)
71 return -ENOMEM;
72 rec->size = size;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070073 memset(rec->space, 0, rsize);
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070075 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
76
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 return 0;
78}
79
Takashi Iwai65b29f52005-11-17 15:09:46 +010080static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081{
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +110082 if (rec->space) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070083 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
84
85 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
86 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070087}
88
89
90/*
91 * pcm stuff
92 */
93
94/*
95 * look up frequency table
96 */
97
Takashi Iwai65b29f52005-11-17 15:09:46 +010098unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
Linus Torvalds1da177e2005-04-16 15:20:36 -070099{
100 int i, ok, found;
101
102 ok = rec->cur_freqs;
103 if (rate > chip->freq_table[0])
104 return 0;
105 found = 0;
106 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
107 if (! (ok & 1)) continue;
108 found = i;
109 if (rate >= chip->freq_table[i])
110 break;
111 }
112 return found;
113}
114
115/*
116 * check whether another stream is active
117 */
118static inline int another_stream(int stream)
119{
120 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
121 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
122}
123
124/*
125 * allocate buffers
126 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100127static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
128 struct snd_pcm_hw_params *hw_params)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129{
130 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
131}
132
133/*
134 * release buffers
135 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100136static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137{
138 snd_pcm_lib_free_pages(subs);
139 return 0;
140}
141
142/*
143 * get a stream of the opposite direction
144 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100145static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146{
147 switch (stream) {
148 case SNDRV_PCM_STREAM_PLAYBACK:
149 return &chip->playback;
150 case SNDRV_PCM_STREAM_CAPTURE:
151 return &chip->capture;
152 default:
153 snd_BUG();
154 return NULL;
155 }
156}
157
158/*
159 * wait while run status is on
160 */
Jesper Juhl77933d72005-07-27 11:46:09 -0700161static inline void
Takashi Iwai65b29f52005-11-17 15:09:46 +0100162snd_pmac_wait_ack(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163{
164 int timeout = 50000;
165 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
166 udelay(1);
167}
168
169/*
170 * set the format and rate to the chip.
171 * call the lowlevel function if defined (e.g. for AWACS).
172 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100173static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174{
175 /* set up frequency and format */
176 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
177 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
178 if (chip->set_format)
179 chip->set_format(chip);
180}
181
182/*
183 * stop the DMA transfer
184 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100185static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186{
187 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
188 snd_pmac_wait_ack(rec);
189}
190
191/*
192 * set the command pointer address
193 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100194static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195{
196 out_le32(&rec->dma->cmdptr, cmd->addr);
197}
198
199/*
200 * start the DMA
201 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100202static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203{
204 out_le32(&rec->dma->control, status | (status << 16));
205}
206
207
208/*
209 * prepare playback/capture stream
210 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100211static 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 -0700212{
213 int i;
214 volatile struct dbdma_cmd __iomem *cp;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100215 struct snd_pcm_runtime *runtime = subs->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 int rate_index;
217 long offset;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100218 struct pmac_stream *astr;
Risto Suominen946cda72008-04-16 13:16:05 +0200219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
221 rec->period_size = snd_pcm_lib_period_bytes(subs);
222 rec->nperiods = rec->dma_size / rec->period_size;
223 rec->cur_period = 0;
224 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
225
226 /* set up constraints */
227 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200228 if (! astr)
229 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 astr->cur_freqs = 1 << rate_index;
231 astr->cur_formats = 1 << runtime->format;
232 chip->rate_index = rate_index;
233 chip->format = runtime->format;
234
235 /* We really want to execute a DMA stop command, after the AWACS
236 * is initialized.
237 * For reasons I don't understand, it stops the hissing noise
238 * common to many PowerBook G3 systems and random noise otherwise
239 * captured on iBook2's about every third time. -ReneR
240 */
241 spin_lock_irq(&chip->reg_lock);
242 snd_pmac_dma_stop(rec);
243 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
244 snd_pmac_dma_set_command(rec, &chip->extra_dma);
245 snd_pmac_dma_run(rec, RUN);
246 spin_unlock_irq(&chip->reg_lock);
247 mdelay(5);
248 spin_lock_irq(&chip->reg_lock);
249 /* continuous DMA memory type doesn't provide the physical address,
250 * so we need to resolve the address here...
251 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700252 offset = runtime->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
254 st_le32(&cp->phy_addr, offset);
255 st_le16(&cp->req_count, rec->period_size);
256 /*st_le16(&cp->res_count, 0);*/
257 st_le16(&cp->xfer_status, 0);
258 offset += rec->period_size;
259 }
260 /* make loop */
261 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
262 st_le32(&cp->cmd_dep, rec->cmd.addr);
263
264 snd_pmac_dma_stop(rec);
265 snd_pmac_dma_set_command(rec, &rec->cmd);
266 spin_unlock_irq(&chip->reg_lock);
267
268 return 0;
269}
270
271
272/*
273 * PCM trigger/stop
274 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100275static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
276 struct snd_pcm_substream *subs, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277{
278 volatile struct dbdma_cmd __iomem *cp;
279 int i, command;
280
281 switch (cmd) {
282 case SNDRV_PCM_TRIGGER_START:
283 case SNDRV_PCM_TRIGGER_RESUME:
284 if (rec->running)
285 return -EBUSY;
286 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
287 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
288 spin_lock(&chip->reg_lock);
289 snd_pmac_beep_stop(chip);
290 snd_pmac_pcm_set_format(chip);
291 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
292 out_le16(&cp->command, command);
293 snd_pmac_dma_set_command(rec, &rec->cmd);
294 (void)in_le32(&rec->dma->status);
295 snd_pmac_dma_run(rec, RUN|WAKE);
296 rec->running = 1;
297 spin_unlock(&chip->reg_lock);
298 break;
299
300 case SNDRV_PCM_TRIGGER_STOP:
301 case SNDRV_PCM_TRIGGER_SUSPEND:
302 spin_lock(&chip->reg_lock);
303 rec->running = 0;
Takashi Iwai6da67112009-02-05 16:02:46 +0100304 /*printk(KERN_DEBUG "stopped!!\n");*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 snd_pmac_dma_stop(rec);
306 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
307 out_le16(&cp->command, DBDMA_STOP);
308 spin_unlock(&chip->reg_lock);
309 break;
310
311 default:
312 return -EINVAL;
313 }
314
315 return 0;
316}
317
318/*
319 * return the current pointer
320 */
321inline
Takashi Iwai65b29f52005-11-17 15:09:46 +0100322static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
323 struct pmac_stream *rec,
324 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325{
326 int count = 0;
327
328#if 1 /* hmm.. how can we get the current dma pointer?? */
329 int stat;
330 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
331 stat = ld_le16(&cp->xfer_status);
332 if (stat & (ACTIVE|DEAD)) {
333 count = in_le16(&cp->res_count);
334 if (count)
335 count = rec->period_size - count;
336 }
337#endif
338 count += rec->cur_period * rec->period_size;
Takashi Iwai6da67112009-02-05 16:02:46 +0100339 /*printk(KERN_DEBUG "pointer=%d\n", count);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 return bytes_to_frames(subs->runtime, count);
341}
342
343/*
344 * playback
345 */
346
Takashi Iwai65b29f52005-11-17 15:09:46 +0100347static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100349 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
351}
352
Takashi Iwai65b29f52005-11-17 15:09:46 +0100353static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 int cmd)
355{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100356 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
358}
359
Takashi Iwai65b29f52005-11-17 15:09:46 +0100360static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100362 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
364}
365
366
367/*
368 * capture
369 */
370
Takashi Iwai65b29f52005-11-17 15:09:46 +0100371static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100373 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
375}
376
Takashi Iwai65b29f52005-11-17 15:09:46 +0100377static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 int cmd)
379{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100380 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
382}
383
Takashi Iwai65b29f52005-11-17 15:09:46 +0100384static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100386 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
388}
389
390
391/*
T. H. Huthe70515dd52008-01-16 15:57:08 +0100392 * Handle DEAD DMA transfers:
393 * if the TX status comes up "DEAD" - reported on some Power Computing machines
394 * we need to re-start the dbdma - but from a different physical start address
395 * and with a different transfer length. It would get very messy to do this
396 * with the normal dbdma_cmd blocks - we would have to re-write the buffer start
397 * addresses each time. So, we will keep a single dbdma_cmd block which can be
398 * fiddled with.
399 * When DEAD status is first reported the content of the faulted dbdma block is
400 * copied into the emergency buffer and we note that the buffer is in use.
401 * we then bump the start physical address by the amount that was successfully
402 * output before it died.
403 * On any subsequent DEAD result we just do the bump-ups (we know that we are
404 * already using the emergency dbdma_cmd).
405 * CHECK: this just tries to "do it". It is possible that we should abandon
406 * xfers when the number of residual bytes gets below a certain value - I can
407 * see that this might cause a loop-forever if a too small transfer causes
408 * DEAD status. However this is a TODO for now - we'll see what gets reported.
409 * When we get a successful transfer result with the emergency buffer we just
410 * pretend that it completed using the original dmdma_cmd and carry on. The
411 * 'next_cmd' field will already point back to the original loop of blocks.
412 */
413static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
414 volatile struct dbdma_cmd __iomem *cp)
415{
416 unsigned short req, res ;
417 unsigned int phy ;
418
419 /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */
420
421 /* to clear DEAD status we must first clear RUN
422 set it to quiescent to be on the safe side */
423 (void)in_le32(&rec->dma->status);
424 out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
425
426 if (!emergency_in_use) { /* new problem */
427 memcpy((void *)emergency_dbdma.cmds, (void *)cp,
428 sizeof(struct dbdma_cmd));
429 emergency_in_use = 1;
430 st_le16(&cp->xfer_status, 0);
431 st_le16(&cp->req_count, rec->period_size);
432 cp = emergency_dbdma.cmds;
433 }
434
435 /* now bump the values to reflect the amount
436 we haven't yet shifted */
437 req = ld_le16(&cp->req_count);
438 res = ld_le16(&cp->res_count);
439 phy = ld_le32(&cp->phy_addr);
440 phy += (req - res);
441 st_le16(&cp->req_count, res);
442 st_le16(&cp->res_count, 0);
443 st_le16(&cp->xfer_status, 0);
444 st_le32(&cp->phy_addr, phy);
445
446 st_le32(&cp->cmd_dep, rec->cmd.addr
447 + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
448
449 st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
450
451 /* point at our patched up command block */
452 out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
453
454 /* we must re-start the controller */
455 (void)in_le32(&rec->dma->status);
456 /* should complete clearing the DEAD status */
457 out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
458}
459
460/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 * update playback/capture pointer from interrupts
462 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100463static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464{
465 volatile struct dbdma_cmd __iomem *cp;
466 int c;
467 int stat;
468
469 spin_lock(&chip->reg_lock);
470 if (rec->running) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
T. H. Huthe70515dd52008-01-16 15:57:08 +0100472
473 if (emergency_in_use) /* already using DEAD xfer? */
474 cp = emergency_dbdma.cmds;
475 else
476 cp = &rec->cmd.cmds[rec->cur_period];
477
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 stat = ld_le16(&cp->xfer_status);
T. H. Huthe70515dd52008-01-16 15:57:08 +0100479
480 if (stat & DEAD) {
481 snd_pmac_pcm_dead_xfer(rec, cp);
482 break; /* this block is still going */
483 }
484
485 if (emergency_in_use)
486 emergency_in_use = 0 ; /* done that */
487
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 if (! (stat & ACTIVE))
489 break;
T. H. Huthe70515dd52008-01-16 15:57:08 +0100490
Takashi Iwai6da67112009-02-05 16:02:46 +0100491 /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 st_le16(&cp->xfer_status, 0);
493 st_le16(&cp->req_count, rec->period_size);
494 /*st_le16(&cp->res_count, 0);*/
495 rec->cur_period++;
496 if (rec->cur_period >= rec->nperiods) {
497 rec->cur_period = 0;
T. H. Huthe70515dd52008-01-16 15:57:08 +0100498 }
499
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 spin_unlock(&chip->reg_lock);
501 snd_pcm_period_elapsed(rec->substream);
502 spin_lock(&chip->reg_lock);
503 }
504 }
505 spin_unlock(&chip->reg_lock);
506}
507
508
509/*
510 * hw info
511 */
512
Takashi Iwai65b29f52005-11-17 15:09:46 +0100513static struct snd_pcm_hardware snd_pmac_playback =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514{
515 .info = (SNDRV_PCM_INFO_INTERLEAVED |
516 SNDRV_PCM_INFO_MMAP |
517 SNDRV_PCM_INFO_MMAP_VALID |
518 SNDRV_PCM_INFO_RESUME),
519 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
520 .rates = SNDRV_PCM_RATE_8000_44100,
521 .rate_min = 7350,
522 .rate_max = 44100,
523 .channels_min = 2,
524 .channels_max = 2,
525 .buffer_bytes_max = 131072,
526 .period_bytes_min = 256,
527 .period_bytes_max = 16384,
528 .periods_min = 3,
529 .periods_max = PMAC_MAX_FRAGS,
530};
531
Takashi Iwai65b29f52005-11-17 15:09:46 +0100532static struct snd_pcm_hardware snd_pmac_capture =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533{
534 .info = (SNDRV_PCM_INFO_INTERLEAVED |
535 SNDRV_PCM_INFO_MMAP |
536 SNDRV_PCM_INFO_MMAP_VALID |
537 SNDRV_PCM_INFO_RESUME),
538 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
539 .rates = SNDRV_PCM_RATE_8000_44100,
540 .rate_min = 7350,
541 .rate_max = 44100,
542 .channels_min = 2,
543 .channels_max = 2,
544 .buffer_bytes_max = 131072,
545 .period_bytes_min = 256,
546 .period_bytes_max = 16384,
547 .periods_min = 3,
548 .periods_max = PMAC_MAX_FRAGS,
549};
550
551
552#if 0 // NYI
Takashi Iwai65b29f52005-11-17 15:09:46 +0100553static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
554 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100556 struct snd_pmac *chip = rule->private;
557 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558 int i, freq_table[8], num_freqs;
559
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200560 if (! rec)
561 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 num_freqs = 0;
563 for (i = chip->num_freqs - 1; i >= 0; i--) {
564 if (rec->cur_freqs & (1 << i))
565 freq_table[num_freqs++] = chip->freq_table[i];
566 }
567
568 return snd_interval_list(hw_param_interval(params, rule->var),
569 num_freqs, freq_table, 0);
570}
571
Takashi Iwai65b29f52005-11-17 15:09:46 +0100572static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
573 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100575 struct snd_pmac *chip = rule->private;
576 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200578 if (! rec)
579 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
581 rec->cur_formats);
582}
583#endif // NYI
584
Takashi Iwai65b29f52005-11-17 15:09:46 +0100585static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
586 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100588 struct snd_pcm_runtime *runtime = subs->runtime;
Clemens Ladisch918f3a02007-08-13 17:40:54 +0200589 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590
591 /* look up frequency table and fill bit mask */
592 runtime->hw.rates = 0;
Clemens Ladisch918f3a02007-08-13 17:40:54 +0200593 for (i = 0; i < chip->num_freqs; i++)
594 if (chip->freqs_ok & (1 << i))
595 runtime->hw.rates |=
596 snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597
598 /* check for minimum and maximum rates */
599 for (i = 0; i < chip->num_freqs; i++) {
600 if (chip->freqs_ok & (1 << i)) {
601 runtime->hw.rate_max = chip->freq_table[i];
602 break;
603 }
604 }
605 for (i = chip->num_freqs - 1; i >= 0; i--) {
606 if (chip->freqs_ok & (1 << i)) {
607 runtime->hw.rate_min = chip->freq_table[i];
608 break;
609 }
610 }
611 runtime->hw.formats = chip->formats_ok;
612 if (chip->can_capture) {
613 if (! chip->can_duplex)
614 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
615 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
616 }
617 runtime->private_data = rec;
618 rec->substream = subs;
619
620#if 0 /* FIXME: still under development.. */
621 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
622 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
623 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
624 snd_pmac_hw_rule_format, chip, rec->stream, -1);
625#endif
626
627 runtime->hw.periods_max = rec->cmd.size - 1;
628
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 /* constraints to fix choppy sound */
630 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
631 return 0;
632}
633
Takashi Iwai65b29f52005-11-17 15:09:46 +0100634static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
635 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100637 struct pmac_stream *astr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638
639 snd_pmac_dma_stop(rec);
640
641 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200642 if (! astr)
643 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644
645 /* reset constraints */
646 astr->cur_freqs = chip->freqs_ok;
647 astr->cur_formats = chip->formats_ok;
Risto Suominen946cda72008-04-16 13:16:05 +0200648
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649 return 0;
650}
651
Takashi Iwai65b29f52005-11-17 15:09:46 +0100652static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100654 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
656 subs->runtime->hw = snd_pmac_playback;
657 return snd_pmac_pcm_open(chip, &chip->playback, subs);
658}
659
Takashi Iwai65b29f52005-11-17 15:09:46 +0100660static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100662 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
664 subs->runtime->hw = snd_pmac_capture;
665 return snd_pmac_pcm_open(chip, &chip->capture, subs);
666}
667
Takashi Iwai65b29f52005-11-17 15:09:46 +0100668static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100670 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671
672 return snd_pmac_pcm_close(chip, &chip->playback, subs);
673}
674
Takashi Iwai65b29f52005-11-17 15:09:46 +0100675static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100677 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
679 return snd_pmac_pcm_close(chip, &chip->capture, subs);
680}
681
682/*
683 */
684
Takashi Iwai65b29f52005-11-17 15:09:46 +0100685static struct snd_pcm_ops snd_pmac_playback_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 .open = snd_pmac_playback_open,
687 .close = snd_pmac_playback_close,
688 .ioctl = snd_pcm_lib_ioctl,
689 .hw_params = snd_pmac_pcm_hw_params,
690 .hw_free = snd_pmac_pcm_hw_free,
691 .prepare = snd_pmac_playback_prepare,
692 .trigger = snd_pmac_playback_trigger,
693 .pointer = snd_pmac_playback_pointer,
694};
695
Takashi Iwai65b29f52005-11-17 15:09:46 +0100696static struct snd_pcm_ops snd_pmac_capture_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697 .open = snd_pmac_capture_open,
698 .close = snd_pmac_capture_close,
699 .ioctl = snd_pcm_lib_ioctl,
700 .hw_params = snd_pmac_pcm_hw_params,
701 .hw_free = snd_pmac_pcm_hw_free,
702 .prepare = snd_pmac_capture_prepare,
703 .trigger = snd_pmac_capture_trigger,
704 .pointer = snd_pmac_capture_pointer,
705};
706
Bill Pemberton15afafc2012-12-06 12:35:23 -0500707int snd_pmac_pcm_new(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100709 struct snd_pcm *pcm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 int err;
711 int num_captures = 1;
712
713 if (! chip->can_capture)
714 num_captures = 0;
715 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
716 if (err < 0)
717 return err;
718
719 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
720 if (chip->can_capture)
721 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
722
723 pcm->private_data = chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
725 strcpy(pcm->name, chip->card->shortname);
726 chip->pcm = pcm;
727
728 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
729 if (chip->can_byte_swap)
730 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
731
732 chip->playback.cur_formats = chip->formats_ok;
733 chip->capture.cur_formats = chip->formats_ok;
734 chip->playback.cur_freqs = chip->freqs_ok;
735 chip->capture.cur_freqs = chip->freqs_ok;
736
737 /* preallocate 64k buffer */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700738 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
739 &chip->pdev->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 64 * 1024, 64 * 1024);
741
742 return 0;
743}
744
745
Takashi Iwai65b29f52005-11-17 15:09:46 +0100746static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747{
748 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
749 snd_pmac_wait_ack(&chip->playback);
750 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
751 snd_pmac_wait_ack(&chip->capture);
752}
753
754
755/*
756 * handling beep
757 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100758void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100760 struct pmac_stream *rec = &chip->playback;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
762 snd_pmac_dma_stop(rec);
763 st_le16(&chip->extra_dma.cmds->req_count, bytes);
764 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
765 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
766 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
767 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
768 out_le32(&chip->awacs->control,
769 (in_le32(&chip->awacs->control) & ~0x1f00)
770 | (speed << 8));
771 out_le32(&chip->awacs->byteswap, 0);
772 snd_pmac_dma_set_command(rec, &chip->extra_dma);
773 snd_pmac_dma_run(rec, RUN);
774}
775
Takashi Iwai65b29f52005-11-17 15:09:46 +0100776void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777{
778 snd_pmac_dma_stop(&chip->playback);
779 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
780 snd_pmac_pcm_set_format(chip); /* reset format */
781}
782
783
784/*
785 * interrupt handlers
786 */
787static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100788snd_pmac_tx_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100790 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791 snd_pmac_pcm_update(chip, &chip->playback);
792 return IRQ_HANDLED;
793}
794
795
796static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100797snd_pmac_rx_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100799 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 snd_pmac_pcm_update(chip, &chip->capture);
801 return IRQ_HANDLED;
802}
803
804
805static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +0100806snd_pmac_ctrl_intr(int irq, void *devid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100808 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809 int ctrl = in_le32(&chip->awacs->control);
810
Takashi Iwai6da67112009-02-05 16:02:46 +0100811 /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812 if (ctrl & MASK_PORTCHG) {
813 /* do something when headphone is plugged/unplugged? */
814 if (chip->update_automute)
815 chip->update_automute(chip, 1);
816 }
817 if (ctrl & MASK_CNTLERR) {
818 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
819 if (err && chip->model <= PMAC_SCREAMER)
820 snd_printk(KERN_DEBUG "error %x\n", err);
821 }
822 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
823 out_le32(&chip->awacs->control, ctrl);
824 return IRQ_HANDLED;
825}
826
827
828/*
829 * a wrapper to feature call for compatibility
830 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100831static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832{
David Woodhouse4e6a06e2005-08-17 11:36:35 +0100833 if (ppc_md.feature_call)
834 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836
837/*
838 * release resources
839 */
840
Takashi Iwai65b29f52005-11-17 15:09:46 +0100841static int snd_pmac_free(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 /* stop sounds */
844 if (chip->initialized) {
845 snd_pmac_dbdma_reset(chip);
846 /* disable interrupts from awacs interface */
847 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
848 }
849
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +1000850 if (chip->node)
851 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852
853 /* clean up mixer if any */
854 if (chip->mixer_free)
855 chip->mixer_free(chip);
856
857 snd_pmac_detach_beep(chip);
858
859 /* release resources */
860 if (chip->irq >= 0)
861 free_irq(chip->irq, (void*)chip);
862 if (chip->tx_irq >= 0)
863 free_irq(chip->tx_irq, (void*)chip);
864 if (chip->rx_irq >= 0)
865 free_irq(chip->rx_irq, (void*)chip);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700866 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
867 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
868 snd_pmac_dbdma_free(chip, &chip->extra_dma);
T. H. Huthe70515dd52008-01-16 15:57:08 +0100869 snd_pmac_dbdma_free(chip, &emergency_dbdma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 if (chip->macio_base)
871 iounmap(chip->macio_base);
872 if (chip->latch_base)
873 iounmap(chip->latch_base);
874 if (chip->awacs)
875 iounmap(chip->awacs);
876 if (chip->playback.dma)
877 iounmap(chip->playback.dma);
878 if (chip->capture.dma)
879 iounmap(chip->capture.dma);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100880
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 if (chip->node) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700882 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883 for (i = 0; i < 3; i++) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100884 if (chip->requested & (1 << i))
885 release_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -0700886 resource_size(&chip->rsrc[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887 }
888 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100889
Markus Elfring1ea7a562014-11-17 13:35:54 +0100890 pci_dev_put(chip->pdev);
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000891 of_node_put(chip->node);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892 kfree(chip);
893 return 0;
894}
895
896
897/*
898 * free the device
899 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100900static int snd_pmac_dev_free(struct snd_device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100902 struct snd_pmac *chip = device->device_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903 return snd_pmac_free(chip);
904}
905
906
907/*
908 * check the machine support byteswap (little-endian)
909 */
910
Bill Pemberton15afafc2012-12-06 12:35:23 -0500911static void detect_byte_swap(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912{
913 struct device_node *mio;
914
915 /* if seems that Keylargo can't byte-swap */
916 for (mio = chip->node->parent; mio; mio = mio->parent) {
917 if (strcmp(mio->name, "mac-io") == 0) {
Stephen Rothwell55b61fe2007-05-03 17:26:52 +1000918 if (of_device_is_compatible(mio, "Keylargo"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 chip->can_byte_swap = 0;
920 break;
921 }
922 }
923
924 /* it seems the Pismo & iBook can't byte-swap in hardware. */
Grant Likely71a157e2010-02-01 21:34:14 -0700925 if (of_machine_is_compatible("PowerBook3,1") ||
926 of_machine_is_compatible("PowerBook2,1"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 chip->can_byte_swap = 0 ;
928
Grant Likely71a157e2010-02-01 21:34:14 -0700929 if (of_machine_is_compatible("PowerBook2,1"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930 chip->can_duplex = 0;
931}
932
933
934/*
935 * detect a sound chip
936 */
Bill Pemberton15afafc2012-12-06 12:35:23 -0500937static int snd_pmac_detect(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938{
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000939 struct device_node *sound;
940 struct device_node *dn;
Stephen Rothwellc4f55b32007-04-03 22:39:14 +1000941 const unsigned int *prop;
942 unsigned int l;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700943 struct macio_chip* macio;
944
Benjamin Herrenschmidte8222502006-03-28 23:15:54 +1100945 if (!machine_is(powermac))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 return -ENODEV;
947
948 chip->subframe = 0;
949 chip->revision = 0;
950 chip->freqs_ok = 0xff; /* all ok */
951 chip->model = PMAC_AWACS;
952 chip->can_byte_swap = 1;
953 chip->can_duplex = 1;
954 chip->can_capture = 1;
955 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
956 chip->freq_table = awacs_freqs;
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +1100957 chip->pdev = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
959 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
960
961 /* check machine type */
Grant Likely71a157e2010-02-01 21:34:14 -0700962 if (of_machine_is_compatible("AAPL,3400/2400")
963 || of_machine_is_compatible("AAPL,3500"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 chip->is_pbook_3400 = 1;
Grant Likely71a157e2010-02-01 21:34:14 -0700965 else if (of_machine_is_compatible("PowerBook1,1")
966 || of_machine_is_compatible("AAPL,PowerBook1998"))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967 chip->is_pbook_G3 = 1;
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000968 chip->node = of_find_node_by_name(NULL, "awacs");
969 sound = of_node_get(chip->node);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
971 /*
972 * powermac G3 models have a node called "davbus"
973 * with a child called "sound".
974 */
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200975 if (!chip->node)
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000976 chip->node = of_find_node_by_name(NULL, "davbus");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977 /*
978 * if we didn't find a davbus device, try 'i2s-a' since
979 * this seems to be what iBooks have
980 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700981 if (! chip->node) {
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000982 chip->node = of_find_node_by_name(NULL, "i2s-a");
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200983 if (chip->node && chip->node->parent &&
984 chip->node->parent->parent) {
Stephen Rothwell55b61fe2007-05-03 17:26:52 +1000985 if (of_device_is_compatible(chip->node->parent->parent,
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700986 "K2-Keylargo"))
987 chip->is_k2 = 1;
988 }
989 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990 if (! chip->node)
991 return -ENODEV;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700992
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200993 if (!sound) {
Grant Likelyccdb8ed2014-06-04 16:42:26 +0100994 for_each_node_by_name(sound, "sound")
995 if (sound->parent == chip->node)
996 break;
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200997 }
Stephen Rothwell30686ba2007-04-24 13:53:04 +1000998 if (! sound) {
999 of_node_put(chip->node);
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +10001000 chip->node = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 return -ENODEV;
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001002 }
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001003 prop = of_get_property(sound, "sub-frame", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 if (prop && *prop < 16)
1005 chip->subframe = *prop;
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001006 prop = of_get_property(sound, "layout-id", NULL);
Johannes Berg55c385a2006-06-21 15:43:44 +02001007 if (prop) {
1008 /* partly deprecate snd-powermac, for those machines
1009 * that have a layout-id property for now */
1010 printk(KERN_INFO "snd-powermac no longer handles any "
1011 "machines with a layout-id property "
1012 "in the device-tree, use snd-aoa.\n");
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +10001013 of_node_put(sound);
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001014 of_node_put(chip->node);
Benjamin Herrenschmidt41e904d2007-06-19 14:37:39 +10001015 chip->node = NULL;
Johannes Berg55c385a2006-06-21 15:43:44 +02001016 return -ENODEV;
1017 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018 /* This should be verified on older screamers */
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001019 if (of_device_is_compatible(sound, "screamer")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020 chip->model = PMAC_SCREAMER;
1021 // chip->can_byte_swap = 0; /* FIXME: check this */
1022 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001023 if (of_device_is_compatible(sound, "burgundy")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 chip->model = PMAC_BURGUNDY;
1025 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1026 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001027 if (of_device_is_compatible(sound, "daca")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028 chip->model = PMAC_DACA;
1029 chip->can_capture = 0; /* no capture */
1030 chip->can_duplex = 0;
1031 // chip->can_byte_swap = 0; /* FIXME: check this */
1032 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1033 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001034 if (of_device_is_compatible(sound, "tumbler")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 chip->model = PMAC_TUMBLER;
Grant Likely71a157e2010-02-01 21:34:14 -07001036 chip->can_capture = of_machine_is_compatible("PowerMac4,2")
Risto Suominen8460ae72011-02-28 10:38:45 +02001037 || of_machine_is_compatible("PowerBook3,2")
1038 || of_machine_is_compatible("PowerBook3,3")
1039 || of_machine_is_compatible("PowerBook4,1")
1040 || of_machine_is_compatible("PowerBook4,2")
1041 || of_machine_is_compatible("PowerBook4,3");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 chip->can_duplex = 0;
1043 // chip->can_byte_swap = 0; /* FIXME: check this */
1044 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1045 chip->freq_table = tumbler_freqs;
1046 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1047 }
Stephen Rothwell55b61fe2007-05-03 17:26:52 +10001048 if (of_device_is_compatible(sound, "snapper")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 chip->model = PMAC_SNAPPER;
1050 // chip->can_byte_swap = 0; /* FIXME: check this */
1051 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1052 chip->freq_table = tumbler_freqs;
1053 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
1054 }
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001055 prop = of_get_property(sound, "device-id", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056 if (prop)
1057 chip->device_id = *prop;
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001058 dn = of_find_node_by_name(NULL, "perch");
1059 chip->has_iic = (dn != NULL);
1060 of_node_put(dn);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001062 /* We need the PCI device for DMA allocations, let's use a crude method
1063 * for now ...
1064 */
1065 macio = macio_find(chip->node, macio_unknown);
1066 if (macio == NULL)
1067 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1068 else {
1069 struct pci_dev *pdev = NULL;
1070
1071 for_each_pci_dev(pdev) {
1072 struct device_node *np = pci_device_to_OF_node(pdev);
1073 if (np && np == macio->of_node) {
1074 chip->pdev = pdev;
1075 break;
1076 }
1077 }
1078 }
1079 if (chip->pdev == NULL)
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +02001080 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1081 " device !\n");
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 detect_byte_swap(chip);
1084
1085 /* look for a property saying what sample rates
1086 are available */
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001087 prop = of_get_property(sound, "sample-rates", &l);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088 if (! prop)
Stephen Rothwellc4f55b32007-04-03 22:39:14 +10001089 prop = of_get_property(sound, "output-frame-rates", &l);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 if (prop) {
1091 int i;
1092 chip->freqs_ok = 0;
1093 for (l /= sizeof(int); l > 0; --l) {
1094 unsigned int r = *prop++;
1095 /* Apple 'Fixed' format */
1096 if (r >= 0x10000)
1097 r >>= 16;
1098 for (i = 0; i < chip->num_freqs; ++i) {
1099 if (r == chip->freq_table[i]) {
1100 chip->freqs_ok |= (1 << i);
1101 break;
1102 }
1103 }
1104 }
1105 } else {
1106 /* assume only 44.1khz */
1107 chip->freqs_ok = 1;
1108 }
1109
Stephen Rothwell30686ba2007-04-24 13:53:04 +10001110 of_node_put(sound);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 return 0;
1112}
1113
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114#ifdef PMAC_SUPPORT_AUTOMUTE
1115/*
1116 * auto-mute
1117 */
Takashi Iwai65b29f52005-11-17 15:09:46 +01001118static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1119 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001121 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122 ucontrol->value.integer.value[0] = chip->auto_mute;
1123 return 0;
1124}
1125
Takashi Iwai65b29f52005-11-17 15:09:46 +01001126static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1127 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001129 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
Takashi Iwaid4079ac2007-11-15 16:14:12 +01001131 chip->auto_mute = !!ucontrol->value.integer.value[0];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 if (chip->update_automute)
1133 chip->update_automute(chip, 1);
1134 return 1;
1135 }
1136 return 0;
1137}
1138
Takashi Iwai65b29f52005-11-17 15:09:46 +01001139static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1140 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001142 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143 if (chip->detect_headphone)
1144 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1145 else
1146 ucontrol->value.integer.value[0] = 0;
1147 return 0;
1148}
1149
Bill Pemberton15afafc2012-12-06 12:35:23 -05001150static struct snd_kcontrol_new auto_mute_controls[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1152 .name = "Auto Mute Switch",
1153 .info = snd_pmac_boolean_mono_info,
1154 .get = pmac_auto_mute_get,
1155 .put = pmac_auto_mute_put,
1156 },
1157 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1158 .name = "Headphone Detection",
1159 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1160 .info = snd_pmac_boolean_mono_info,
1161 .get = pmac_hp_detect_get,
1162 },
1163};
1164
Bill Pemberton15afafc2012-12-06 12:35:23 -05001165int snd_pmac_add_automute(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166{
1167 int err;
1168 chip->auto_mute = 1;
1169 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001170 if (err < 0) {
1171 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 return err;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001173 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1175 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1176}
1177#endif /* PMAC_SUPPORT_AUTOMUTE */
1178
1179/*
1180 * create and detect a pmac chip record
1181 */
Bill Pemberton15afafc2012-12-06 12:35:23 -05001182int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001184 struct snd_pmac *chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 struct device_node *np;
1186 int i, err;
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001187 unsigned int irq;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001188 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
Takashi Iwai65b29f52005-11-17 15:09:46 +01001189 static struct snd_device_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 .dev_free = snd_pmac_dev_free,
1191 };
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193 *chip_return = NULL;
1194
Takashi Iwai561b2202005-09-09 14:22:34 +02001195 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 if (chip == NULL)
1197 return -ENOMEM;
1198 chip->card = card;
1199
1200 spin_lock_init(&chip->reg_lock);
1201 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1202
1203 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1204 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1205
1206 if ((err = snd_pmac_detect(chip)) < 0)
1207 goto __error;
1208
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001209 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1210 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
T. H. Huthe70515dd52008-01-16 15:57:08 +01001211 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1212 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 err = -ENOMEM;
1214 goto __error;
1215 }
1216
1217 np = chip->node;
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001218 chip->requested = 0;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001219 if (chip->is_k2) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001220 static char *rnames[] = {
1221 "Sound Control", "Sound DMA" };
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001222 for (i = 0; i < 2; i ++) {
1223 if (of_address_to_resource(np->parent, i,
1224 &chip->rsrc[i])) {
1225 printk(KERN_ERR "snd: can't translate rsrc "
1226 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001227 err = -ENODEV;
1228 goto __error;
1229 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001230 if (request_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -07001231 resource_size(&chip->rsrc[i]),
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001232 rnames[i]) == NULL) {
1233 printk(KERN_ERR "snd: can't request rsrc "
Joe Perches2fb50f12010-11-12 13:38:04 -08001234 " %d (%s: %pR)\n",
1235 i, rnames[i], &chip->rsrc[i]);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001236 err = -ENODEV;
1237 goto __error;
1238 }
1239 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001240 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001241 ctrl_addr = chip->rsrc[0].start;
1242 txdma_addr = chip->rsrc[1].start;
1243 rxdma_addr = txdma_addr + 0x100;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001244 } else {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001245 static char *rnames[] = {
1246 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001247 for (i = 0; i < 3; i ++) {
Benjamin Herrenschmidt88356e92006-02-01 03:04:43 -08001248 if (of_address_to_resource(np, i,
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001249 &chip->rsrc[i])) {
1250 printk(KERN_ERR "snd: can't translate rsrc "
1251 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001252 err = -ENODEV;
1253 goto __error;
1254 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001255 if (request_mem_region(chip->rsrc[i].start,
Joe Perches28f65c112011-06-09 09:13:32 -07001256 resource_size(&chip->rsrc[i]),
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001257 rnames[i]) == NULL) {
1258 printk(KERN_ERR "snd: can't request rsrc "
Joe Perches2fb50f12010-11-12 13:38:04 -08001259 " %d (%s: %pR)\n",
1260 i, rnames[i], &chip->rsrc[i]);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001261 err = -ENODEV;
1262 goto __error;
1263 }
1264 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001265 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001266 ctrl_addr = chip->rsrc[0].start;
1267 txdma_addr = chip->rsrc[1].start;
1268 rxdma_addr = chip->rsrc[2].start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 }
1270
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001271 chip->awacs = ioremap(ctrl_addr, 0x1000);
1272 chip->playback.dma = ioremap(txdma_addr, 0x100);
1273 chip->capture.dma = ioremap(rxdma_addr, 0x100);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 if (chip->model <= PMAC_BURGUNDY) {
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001275 irq = irq_of_parse_and_map(np, 0);
1276 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 "PMac", (void*)chip)) {
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001278 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1279 irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 err = -EBUSY;
1281 goto __error;
1282 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001283 chip->irq = irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001285 irq = irq_of_parse_and_map(np, 1);
1286 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1287 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288 err = -EBUSY;
1289 goto __error;
1290 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001291 chip->tx_irq = irq;
1292 irq = irq_of_parse_and_map(np, 2);
1293 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1294 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295 err = -EBUSY;
1296 goto __error;
1297 }
Benjamin Herrenschmidt0ebfff12006-07-03 21:36:01 +10001298 chip->rx_irq = irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299
1300 snd_pmac_sound_feature(chip, 1);
1301
Risto Suominen9a4f20f2008-04-16 13:15:38 +02001302 /* reset & enable interrupts */
1303 if (chip->model <= PMAC_BURGUNDY)
1304 out_le32(&chip->awacs->control, chip->control_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305
1306 /* Powerbooks have odd ways of enabling inputs such as
1307 an expansion-bay CD or sound from an internal modem
1308 or a PC-card modem. */
1309 if (chip->is_pbook_3400) {
1310 /* Enable CD and PC-card sound inputs. */
1311 /* This is done by reading from address
1312 * f301a000, + 0x10 to enable the expansion-bay
1313 * CD sound input, + 0x80 to enable the PC-card
1314 * sound input. The 0x100 enables the SCSI bus
1315 * terminator power.
1316 */
1317 chip->latch_base = ioremap (0xf301a000, 0x1000);
1318 in_8(chip->latch_base + 0x190);
1319 } else if (chip->is_pbook_G3) {
1320 struct device_node* mio;
1321 for (mio = chip->node->parent; mio; mio = mio->parent) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001322 if (strcmp(mio->name, "mac-io") == 0) {
1323 struct resource r;
1324 if (of_address_to_resource(mio, 0, &r) == 0)
1325 chip->macio_base =
1326 ioremap(r.start, 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 break;
1328 }
1329 }
1330 /* Enable CD sound input. */
1331 /* The relevant bits for writing to this byte are 0x8f.
1332 * I haven't found out what the 0x80 bit does.
1333 * For the 0xf bits, writing 3 or 7 enables the CD
1334 * input, any other value disables it. Values
1335 * 1, 3, 5, 7 enable the microphone. Values 0, 2,
1336 * 4, 6, 8 - f enable the input from the modem.
1337 */
1338 if (chip->macio_base)
1339 out_8(chip->macio_base + 0x37, 3);
1340 }
1341
1342 /* Reset dbdma channels */
1343 snd_pmac_dbdma_reset(chip);
1344
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1346 goto __error;
1347
1348 *chip_return = chip;
1349 return 0;
1350
1351 __error:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 snd_pmac_free(chip);
1353 return err;
1354}
1355
1356
1357/*
1358 * sleep notify for powerbook
1359 */
1360
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001361#ifdef CONFIG_PM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362
1363/*
1364 * Save state when going to sleep, restore it afterwards.
1365 */
1366
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001367void snd_pmac_suspend(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369 unsigned long flags;
1370
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001371 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 if (chip->suspend)
1373 chip->suspend(chip);
1374 snd_pcm_suspend_all(chip->pcm);
1375 spin_lock_irqsave(&chip->reg_lock, flags);
1376 snd_pmac_beep_stop(chip);
1377 spin_unlock_irqrestore(&chip->reg_lock, flags);
1378 if (chip->irq >= 0)
1379 disable_irq(chip->irq);
1380 if (chip->tx_irq >= 0)
1381 disable_irq(chip->tx_irq);
1382 if (chip->rx_irq >= 0)
1383 disable_irq(chip->rx_irq);
1384 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385}
1386
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001387void snd_pmac_resume(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 snd_pmac_sound_feature(chip, 1);
1390 if (chip->resume)
1391 chip->resume(chip);
1392 /* enable CD sound input */
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001393 if (chip->macio_base && chip->is_pbook_G3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 out_8(chip->macio_base + 0x37, 3);
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001395 else if (chip->is_pbook_3400)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 in_8(chip->latch_base + 0x190);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397
1398 snd_pmac_pcm_set_format(chip);
1399
1400 if (chip->irq >= 0)
1401 enable_irq(chip->irq);
1402 if (chip->tx_irq >= 0)
1403 enable_irq(chip->tx_irq);
1404 if (chip->rx_irq >= 0)
1405 enable_irq(chip->rx_irq);
1406
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001407 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408}
1409
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001410#endif /* CONFIG_PM */
1411