blob: be98f63773392af7e9afa04c748acffc5d5c8b94 [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
23#include <sound/driver.h>
24#include <asm/io.h>
25#include <asm/irq.h>
26#include <linux/init.h>
27#include <linux/delay.h>
28#include <linux/slab.h>
29#include <linux/interrupt.h>
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070030#include <linux/pci.h>
31#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include <sound/core.h>
33#include "pmac.h"
34#include <sound/pcm_params.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <asm/pmac_feature.h>
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070036#include <asm/pci-bridge.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38
Linus Torvalds1da177e2005-04-16 15:20:36 -070039/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
40static int awacs_freqs[8] = {
41 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
42};
43/* fixed frequency table for tumbler */
44static int tumbler_freqs[1] = {
45 44100
46};
47
48/*
49 * allocate DBDMA command arrays
50 */
Takashi Iwai65b29f52005-11-17 15:09:46 +010051static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052{
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070053 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
54
55 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
56 &rec->dma_base, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 if (rec->space == NULL)
58 return -ENOMEM;
59 rec->size = size;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070060 memset(rec->space, 0, rsize);
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070062 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 return 0;
65}
66
Takashi Iwai65b29f52005-11-17 15:09:46 +010067static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -070068{
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +110069 if (rec->space) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -070070 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
71
72 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
73 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070074}
75
76
77/*
78 * pcm stuff
79 */
80
81/*
82 * look up frequency table
83 */
84
Takashi Iwai65b29f52005-11-17 15:09:46 +010085unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
Linus Torvalds1da177e2005-04-16 15:20:36 -070086{
87 int i, ok, found;
88
89 ok = rec->cur_freqs;
90 if (rate > chip->freq_table[0])
91 return 0;
92 found = 0;
93 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
94 if (! (ok & 1)) continue;
95 found = i;
96 if (rate >= chip->freq_table[i])
97 break;
98 }
99 return found;
100}
101
102/*
103 * check whether another stream is active
104 */
105static inline int another_stream(int stream)
106{
107 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
108 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
109}
110
111/*
112 * allocate buffers
113 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100114static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
115 struct snd_pcm_hw_params *hw_params)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116{
117 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
118}
119
120/*
121 * release buffers
122 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100123static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124{
125 snd_pcm_lib_free_pages(subs);
126 return 0;
127}
128
129/*
130 * get a stream of the opposite direction
131 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100132static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133{
134 switch (stream) {
135 case SNDRV_PCM_STREAM_PLAYBACK:
136 return &chip->playback;
137 case SNDRV_PCM_STREAM_CAPTURE:
138 return &chip->capture;
139 default:
140 snd_BUG();
141 return NULL;
142 }
143}
144
145/*
146 * wait while run status is on
147 */
Jesper Juhl77933d72005-07-27 11:46:09 -0700148static inline void
Takashi Iwai65b29f52005-11-17 15:09:46 +0100149snd_pmac_wait_ack(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150{
151 int timeout = 50000;
152 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
153 udelay(1);
154}
155
156/*
157 * set the format and rate to the chip.
158 * call the lowlevel function if defined (e.g. for AWACS).
159 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100160static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 /* set up frequency and format */
163 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
164 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
165 if (chip->set_format)
166 chip->set_format(chip);
167}
168
169/*
170 * stop the DMA transfer
171 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100172static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173{
174 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
175 snd_pmac_wait_ack(rec);
176}
177
178/*
179 * set the command pointer address
180 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100181static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182{
183 out_le32(&rec->dma->cmdptr, cmd->addr);
184}
185
186/*
187 * start the DMA
188 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100189static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190{
191 out_le32(&rec->dma->control, status | (status << 16));
192}
193
194
195/*
196 * prepare playback/capture stream
197 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100198static 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 -0700199{
200 int i;
201 volatile struct dbdma_cmd __iomem *cp;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100202 struct snd_pcm_runtime *runtime = subs->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 int rate_index;
204 long offset;
Takashi Iwai65b29f52005-11-17 15:09:46 +0100205 struct pmac_stream *astr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
207 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
208 rec->period_size = snd_pcm_lib_period_bytes(subs);
209 rec->nperiods = rec->dma_size / rec->period_size;
210 rec->cur_period = 0;
211 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
212
213 /* set up constraints */
214 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200215 if (! astr)
216 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 astr->cur_freqs = 1 << rate_index;
218 astr->cur_formats = 1 << runtime->format;
219 chip->rate_index = rate_index;
220 chip->format = runtime->format;
221
222 /* We really want to execute a DMA stop command, after the AWACS
223 * is initialized.
224 * For reasons I don't understand, it stops the hissing noise
225 * common to many PowerBook G3 systems and random noise otherwise
226 * captured on iBook2's about every third time. -ReneR
227 */
228 spin_lock_irq(&chip->reg_lock);
229 snd_pmac_dma_stop(rec);
230 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
231 snd_pmac_dma_set_command(rec, &chip->extra_dma);
232 snd_pmac_dma_run(rec, RUN);
233 spin_unlock_irq(&chip->reg_lock);
234 mdelay(5);
235 spin_lock_irq(&chip->reg_lock);
236 /* continuous DMA memory type doesn't provide the physical address,
237 * so we need to resolve the address here...
238 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700239 offset = runtime->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
241 st_le32(&cp->phy_addr, offset);
242 st_le16(&cp->req_count, rec->period_size);
243 /*st_le16(&cp->res_count, 0);*/
244 st_le16(&cp->xfer_status, 0);
245 offset += rec->period_size;
246 }
247 /* make loop */
248 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
249 st_le32(&cp->cmd_dep, rec->cmd.addr);
250
251 snd_pmac_dma_stop(rec);
252 snd_pmac_dma_set_command(rec, &rec->cmd);
253 spin_unlock_irq(&chip->reg_lock);
254
255 return 0;
256}
257
258
259/*
260 * PCM trigger/stop
261 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100262static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
263 struct snd_pcm_substream *subs, int cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264{
265 volatile struct dbdma_cmd __iomem *cp;
266 int i, command;
267
268 switch (cmd) {
269 case SNDRV_PCM_TRIGGER_START:
270 case SNDRV_PCM_TRIGGER_RESUME:
271 if (rec->running)
272 return -EBUSY;
273 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
274 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
275 spin_lock(&chip->reg_lock);
276 snd_pmac_beep_stop(chip);
277 snd_pmac_pcm_set_format(chip);
278 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
279 out_le16(&cp->command, command);
280 snd_pmac_dma_set_command(rec, &rec->cmd);
281 (void)in_le32(&rec->dma->status);
282 snd_pmac_dma_run(rec, RUN|WAKE);
283 rec->running = 1;
284 spin_unlock(&chip->reg_lock);
285 break;
286
287 case SNDRV_PCM_TRIGGER_STOP:
288 case SNDRV_PCM_TRIGGER_SUSPEND:
289 spin_lock(&chip->reg_lock);
290 rec->running = 0;
291 /*printk("stopped!!\n");*/
292 snd_pmac_dma_stop(rec);
293 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
294 out_le16(&cp->command, DBDMA_STOP);
295 spin_unlock(&chip->reg_lock);
296 break;
297
298 default:
299 return -EINVAL;
300 }
301
302 return 0;
303}
304
305/*
306 * return the current pointer
307 */
308inline
Takashi Iwai65b29f52005-11-17 15:09:46 +0100309static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
310 struct pmac_stream *rec,
311 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312{
313 int count = 0;
314
315#if 1 /* hmm.. how can we get the current dma pointer?? */
316 int stat;
317 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
318 stat = ld_le16(&cp->xfer_status);
319 if (stat & (ACTIVE|DEAD)) {
320 count = in_le16(&cp->res_count);
321 if (count)
322 count = rec->period_size - count;
323 }
324#endif
325 count += rec->cur_period * rec->period_size;
326 /*printk("pointer=%d\n", count);*/
327 return bytes_to_frames(subs->runtime, count);
328}
329
330/*
331 * playback
332 */
333
Takashi Iwai65b29f52005-11-17 15:09:46 +0100334static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100336 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
338}
339
Takashi Iwai65b29f52005-11-17 15:09:46 +0100340static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 int cmd)
342{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100343 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
345}
346
Takashi Iwai65b29f52005-11-17 15:09:46 +0100347static snd_pcm_uframes_t snd_pmac_playback_pointer(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_pointer(chip, &chip->playback, subs);
351}
352
353
354/*
355 * capture
356 */
357
Takashi Iwai65b29f52005-11-17 15:09:46 +0100358static int snd_pmac_capture_prepare(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_prepare(chip, &chip->capture, subs);
362}
363
Takashi Iwai65b29f52005-11-17 15:09:46 +0100364static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 int cmd)
366{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100367 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
369}
370
Takashi Iwai65b29f52005-11-17 15:09:46 +0100371static snd_pcm_uframes_t snd_pmac_capture_pointer(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_pointer(chip, &chip->capture, subs);
375}
376
377
378/*
379 * update playback/capture pointer from interrupts
380 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100381static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382{
383 volatile struct dbdma_cmd __iomem *cp;
384 int c;
385 int stat;
386
387 spin_lock(&chip->reg_lock);
388 if (rec->running) {
389 cp = &rec->cmd.cmds[rec->cur_period];
390 for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
391 stat = ld_le16(&cp->xfer_status);
392 if (! (stat & ACTIVE))
393 break;
394 /*printk("update frag %d\n", rec->cur_period);*/
395 st_le16(&cp->xfer_status, 0);
396 st_le16(&cp->req_count, rec->period_size);
397 /*st_le16(&cp->res_count, 0);*/
398 rec->cur_period++;
399 if (rec->cur_period >= rec->nperiods) {
400 rec->cur_period = 0;
401 cp = rec->cmd.cmds;
402 } else
403 cp++;
404 spin_unlock(&chip->reg_lock);
405 snd_pcm_period_elapsed(rec->substream);
406 spin_lock(&chip->reg_lock);
407 }
408 }
409 spin_unlock(&chip->reg_lock);
410}
411
412
413/*
414 * hw info
415 */
416
Takashi Iwai65b29f52005-11-17 15:09:46 +0100417static struct snd_pcm_hardware snd_pmac_playback =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418{
419 .info = (SNDRV_PCM_INFO_INTERLEAVED |
420 SNDRV_PCM_INFO_MMAP |
421 SNDRV_PCM_INFO_MMAP_VALID |
422 SNDRV_PCM_INFO_RESUME),
423 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
424 .rates = SNDRV_PCM_RATE_8000_44100,
425 .rate_min = 7350,
426 .rate_max = 44100,
427 .channels_min = 2,
428 .channels_max = 2,
429 .buffer_bytes_max = 131072,
430 .period_bytes_min = 256,
431 .period_bytes_max = 16384,
432 .periods_min = 3,
433 .periods_max = PMAC_MAX_FRAGS,
434};
435
Takashi Iwai65b29f52005-11-17 15:09:46 +0100436static struct snd_pcm_hardware snd_pmac_capture =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437{
438 .info = (SNDRV_PCM_INFO_INTERLEAVED |
439 SNDRV_PCM_INFO_MMAP |
440 SNDRV_PCM_INFO_MMAP_VALID |
441 SNDRV_PCM_INFO_RESUME),
442 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
443 .rates = SNDRV_PCM_RATE_8000_44100,
444 .rate_min = 7350,
445 .rate_max = 44100,
446 .channels_min = 2,
447 .channels_max = 2,
448 .buffer_bytes_max = 131072,
449 .period_bytes_min = 256,
450 .period_bytes_max = 16384,
451 .periods_min = 3,
452 .periods_max = PMAC_MAX_FRAGS,
453};
454
455
456#if 0 // NYI
Takashi Iwai65b29f52005-11-17 15:09:46 +0100457static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
458 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100460 struct snd_pmac *chip = rule->private;
461 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 int i, freq_table[8], num_freqs;
463
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200464 if (! rec)
465 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 num_freqs = 0;
467 for (i = chip->num_freqs - 1; i >= 0; i--) {
468 if (rec->cur_freqs & (1 << i))
469 freq_table[num_freqs++] = chip->freq_table[i];
470 }
471
472 return snd_interval_list(hw_param_interval(params, rule->var),
473 num_freqs, freq_table, 0);
474}
475
Takashi Iwai65b29f52005-11-17 15:09:46 +0100476static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
477 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100479 struct snd_pmac *chip = rule->private;
480 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200482 if (! rec)
483 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
485 rec->cur_formats);
486}
487#endif // NYI
488
Takashi Iwai65b29f52005-11-17 15:09:46 +0100489static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
490 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100492 struct snd_pcm_runtime *runtime = subs->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 int i, j, fflags;
494 static int typical_freqs[] = {
495 44100,
496 22050,
497 11025,
498 0,
499 };
500 static int typical_freq_flags[] = {
501 SNDRV_PCM_RATE_44100,
502 SNDRV_PCM_RATE_22050,
503 SNDRV_PCM_RATE_11025,
504 0,
505 };
506
507 /* look up frequency table and fill bit mask */
508 runtime->hw.rates = 0;
509 fflags = chip->freqs_ok;
510 for (i = 0; typical_freqs[i]; i++) {
511 for (j = 0; j < chip->num_freqs; j++) {
512 if ((chip->freqs_ok & (1 << j)) &&
513 chip->freq_table[j] == typical_freqs[i]) {
514 runtime->hw.rates |= typical_freq_flags[i];
515 fflags &= ~(1 << j);
516 break;
517 }
518 }
519 }
520 if (fflags) /* rest */
521 runtime->hw.rates |= SNDRV_PCM_RATE_KNOT;
522
523 /* check for minimum and maximum rates */
524 for (i = 0; i < chip->num_freqs; i++) {
525 if (chip->freqs_ok & (1 << i)) {
526 runtime->hw.rate_max = chip->freq_table[i];
527 break;
528 }
529 }
530 for (i = chip->num_freqs - 1; i >= 0; i--) {
531 if (chip->freqs_ok & (1 << i)) {
532 runtime->hw.rate_min = chip->freq_table[i];
533 break;
534 }
535 }
536 runtime->hw.formats = chip->formats_ok;
537 if (chip->can_capture) {
538 if (! chip->can_duplex)
539 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
540 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
541 }
542 runtime->private_data = rec;
543 rec->substream = subs;
544
545#if 0 /* FIXME: still under development.. */
546 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
547 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
548 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
549 snd_pmac_hw_rule_format, chip, rec->stream, -1);
550#endif
551
552 runtime->hw.periods_max = rec->cmd.size - 1;
553
554 if (chip->can_duplex)
555 snd_pcm_set_sync(subs);
556
557 /* constraints to fix choppy sound */
558 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
559 return 0;
560}
561
Takashi Iwai65b29f52005-11-17 15:09:46 +0100562static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
563 struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100565 struct pmac_stream *astr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566
567 snd_pmac_dma_stop(rec);
568
569 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
Takashi Iwai7c22f1a2005-10-10 11:46:31 +0200570 if (! astr)
571 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572
573 /* reset constraints */
574 astr->cur_freqs = chip->freqs_ok;
575 astr->cur_formats = chip->formats_ok;
576
577 return 0;
578}
579
Takashi Iwai65b29f52005-11-17 15:09:46 +0100580static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100582 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583
584 subs->runtime->hw = snd_pmac_playback;
585 return snd_pmac_pcm_open(chip, &chip->playback, subs);
586}
587
Takashi Iwai65b29f52005-11-17 15:09:46 +0100588static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100590 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591
592 subs->runtime->hw = snd_pmac_capture;
593 return snd_pmac_pcm_open(chip, &chip->capture, subs);
594}
595
Takashi Iwai65b29f52005-11-17 15:09:46 +0100596static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100598 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599
600 return snd_pmac_pcm_close(chip, &chip->playback, subs);
601}
602
Takashi Iwai65b29f52005-11-17 15:09:46 +0100603static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100605 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
607 return snd_pmac_pcm_close(chip, &chip->capture, subs);
608}
609
610/*
611 */
612
Takashi Iwai65b29f52005-11-17 15:09:46 +0100613static struct snd_pcm_ops snd_pmac_playback_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 .open = snd_pmac_playback_open,
615 .close = snd_pmac_playback_close,
616 .ioctl = snd_pcm_lib_ioctl,
617 .hw_params = snd_pmac_pcm_hw_params,
618 .hw_free = snd_pmac_pcm_hw_free,
619 .prepare = snd_pmac_playback_prepare,
620 .trigger = snd_pmac_playback_trigger,
621 .pointer = snd_pmac_playback_pointer,
622};
623
Takashi Iwai65b29f52005-11-17 15:09:46 +0100624static struct snd_pcm_ops snd_pmac_capture_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 .open = snd_pmac_capture_open,
626 .close = snd_pmac_capture_close,
627 .ioctl = snd_pcm_lib_ioctl,
628 .hw_params = snd_pmac_pcm_hw_params,
629 .hw_free = snd_pmac_pcm_hw_free,
630 .prepare = snd_pmac_capture_prepare,
631 .trigger = snd_pmac_capture_trigger,
632 .pointer = snd_pmac_capture_pointer,
633};
634
Takashi Iwai65b29f52005-11-17 15:09:46 +0100635int __init snd_pmac_pcm_new(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100637 struct snd_pcm *pcm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 int err;
639 int num_captures = 1;
640
641 if (! chip->can_capture)
642 num_captures = 0;
643 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
644 if (err < 0)
645 return err;
646
647 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
648 if (chip->can_capture)
649 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
650
651 pcm->private_data = chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
653 strcpy(pcm->name, chip->card->shortname);
654 chip->pcm = pcm;
655
656 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
657 if (chip->can_byte_swap)
658 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
659
660 chip->playback.cur_formats = chip->formats_ok;
661 chip->capture.cur_formats = chip->formats_ok;
662 chip->playback.cur_freqs = chip->freqs_ok;
663 chip->capture.cur_freqs = chip->freqs_ok;
664
665 /* preallocate 64k buffer */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700666 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
667 &chip->pdev->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 64 * 1024, 64 * 1024);
669
670 return 0;
671}
672
673
Takashi Iwai65b29f52005-11-17 15:09:46 +0100674static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675{
676 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
677 snd_pmac_wait_ack(&chip->playback);
678 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
679 snd_pmac_wait_ack(&chip->capture);
680}
681
682
683/*
684 * handling beep
685 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100686void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100688 struct pmac_stream *rec = &chip->playback;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
690 snd_pmac_dma_stop(rec);
691 st_le16(&chip->extra_dma.cmds->req_count, bytes);
692 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
693 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
694 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
695 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
696 out_le32(&chip->awacs->control,
697 (in_le32(&chip->awacs->control) & ~0x1f00)
698 | (speed << 8));
699 out_le32(&chip->awacs->byteswap, 0);
700 snd_pmac_dma_set_command(rec, &chip->extra_dma);
701 snd_pmac_dma_run(rec, RUN);
702}
703
Takashi Iwai65b29f52005-11-17 15:09:46 +0100704void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705{
706 snd_pmac_dma_stop(&chip->playback);
707 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
708 snd_pmac_pcm_set_format(chip); /* reset format */
709}
710
711
712/*
713 * interrupt handlers
714 */
715static irqreturn_t
716snd_pmac_tx_intr(int irq, void *devid, struct pt_regs *regs)
717{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100718 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 snd_pmac_pcm_update(chip, &chip->playback);
720 return IRQ_HANDLED;
721}
722
723
724static irqreturn_t
725snd_pmac_rx_intr(int irq, void *devid, struct pt_regs *regs)
726{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100727 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728 snd_pmac_pcm_update(chip, &chip->capture);
729 return IRQ_HANDLED;
730}
731
732
733static irqreturn_t
734snd_pmac_ctrl_intr(int irq, void *devid, struct pt_regs *regs)
735{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100736 struct snd_pmac *chip = devid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 int ctrl = in_le32(&chip->awacs->control);
738
739 /*printk("pmac: control interrupt.. 0x%x\n", ctrl);*/
740 if (ctrl & MASK_PORTCHG) {
741 /* do something when headphone is plugged/unplugged? */
742 if (chip->update_automute)
743 chip->update_automute(chip, 1);
744 }
745 if (ctrl & MASK_CNTLERR) {
746 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
747 if (err && chip->model <= PMAC_SCREAMER)
748 snd_printk(KERN_DEBUG "error %x\n", err);
749 }
750 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
751 out_le32(&chip->awacs->control, ctrl);
752 return IRQ_HANDLED;
753}
754
755
756/*
757 * a wrapper to feature call for compatibility
758 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100759static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760{
David Woodhouse4e6a06e2005-08-17 11:36:35 +0100761 if (ppc_md.feature_call)
762 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764
765/*
766 * release resources
767 */
768
Takashi Iwai65b29f52005-11-17 15:09:46 +0100769static int snd_pmac_free(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 /* stop sounds */
772 if (chip->initialized) {
773 snd_pmac_dbdma_reset(chip);
774 /* disable interrupts from awacs interface */
775 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
776 }
777
778 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779
780 /* clean up mixer if any */
781 if (chip->mixer_free)
782 chip->mixer_free(chip);
783
784 snd_pmac_detach_beep(chip);
785
786 /* release resources */
787 if (chip->irq >= 0)
788 free_irq(chip->irq, (void*)chip);
789 if (chip->tx_irq >= 0)
790 free_irq(chip->tx_irq, (void*)chip);
791 if (chip->rx_irq >= 0)
792 free_irq(chip->rx_irq, (void*)chip);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700793 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
794 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
795 snd_pmac_dbdma_free(chip, &chip->extra_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 if (chip->macio_base)
797 iounmap(chip->macio_base);
798 if (chip->latch_base)
799 iounmap(chip->latch_base);
800 if (chip->awacs)
801 iounmap(chip->awacs);
802 if (chip->playback.dma)
803 iounmap(chip->playback.dma);
804 if (chip->capture.dma)
805 iounmap(chip->capture.dma);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100806
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 if (chip->node) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700808 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809 for (i = 0; i < 3; i++) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100810 if (chip->requested & (1 << i))
811 release_mem_region(chip->rsrc[i].start,
812 chip->rsrc[i].end -
813 chip->rsrc[i].start + 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 }
815 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +1100816
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700817 if (chip->pdev)
818 pci_dev_put(chip->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 kfree(chip);
820 return 0;
821}
822
823
824/*
825 * free the device
826 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100827static int snd_pmac_dev_free(struct snd_device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828{
Takashi Iwai65b29f52005-11-17 15:09:46 +0100829 struct snd_pmac *chip = device->device_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830 return snd_pmac_free(chip);
831}
832
833
834/*
835 * check the machine support byteswap (little-endian)
836 */
837
Takashi Iwai65b29f52005-11-17 15:09:46 +0100838static void __init detect_byte_swap(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839{
840 struct device_node *mio;
841
842 /* if seems that Keylargo can't byte-swap */
843 for (mio = chip->node->parent; mio; mio = mio->parent) {
844 if (strcmp(mio->name, "mac-io") == 0) {
845 if (device_is_compatible(mio, "Keylargo"))
846 chip->can_byte_swap = 0;
847 break;
848 }
849 }
850
851 /* it seems the Pismo & iBook can't byte-swap in hardware. */
852 if (machine_is_compatible("PowerBook3,1") ||
853 machine_is_compatible("PowerBook2,1"))
854 chip->can_byte_swap = 0 ;
855
856 if (machine_is_compatible("PowerBook2,1"))
857 chip->can_duplex = 0;
858}
859
860
861/*
862 * detect a sound chip
863 */
Takashi Iwai65b29f52005-11-17 15:09:46 +0100864static int __init snd_pmac_detect(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865{
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200866 struct device_node *sound = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 unsigned int *prop, l;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700868 struct macio_chip* macio;
869
Benjamin Herrenschmidte8222502006-03-28 23:15:54 +1100870 if (!machine_is(powermac))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 return -ENODEV;
872
873 chip->subframe = 0;
874 chip->revision = 0;
875 chip->freqs_ok = 0xff; /* all ok */
876 chip->model = PMAC_AWACS;
877 chip->can_byte_swap = 1;
878 chip->can_duplex = 1;
879 chip->can_capture = 1;
880 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
881 chip->freq_table = awacs_freqs;
Benjamin Herrenschmidt367636e2006-02-08 15:04:18 +1100882 chip->pdev = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
884 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
885
886 /* check machine type */
887 if (machine_is_compatible("AAPL,3400/2400")
888 || machine_is_compatible("AAPL,3500"))
889 chip->is_pbook_3400 = 1;
890 else if (machine_is_compatible("PowerBook1,1")
891 || machine_is_compatible("AAPL,PowerBook1998"))
892 chip->is_pbook_G3 = 1;
893 chip->node = find_devices("awacs");
894 if (chip->node)
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200895 sound = chip->node;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896
897 /*
898 * powermac G3 models have a node called "davbus"
899 * with a child called "sound".
900 */
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200901 if (!chip->node)
902 chip->node = find_devices("davbus");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903 /*
904 * if we didn't find a davbus device, try 'i2s-a' since
905 * this seems to be what iBooks have
906 */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700907 if (! chip->node) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 chip->node = find_devices("i2s-a");
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200909 if (chip->node && chip->node->parent &&
910 chip->node->parent->parent) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700911 if (device_is_compatible(chip->node->parent->parent,
912 "K2-Keylargo"))
913 chip->is_k2 = 1;
914 }
915 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 if (! chip->node)
917 return -ENODEV;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700918
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200919 if (!sound) {
920 sound = find_devices("sound");
921 while (sound && sound->parent != chip->node)
922 sound = sound->next;
923 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 if (! sound)
925 return -ENODEV;
926 prop = (unsigned int *) get_property(sound, "sub-frame", NULL);
927 if (prop && *prop < 16)
928 chip->subframe = *prop;
Benjamin Herrenschmidtb75550e2005-04-16 15:24:31 -0700929 prop = (unsigned int *) get_property(sound, "layout-id", NULL);
Johannes Berg55c385a2006-06-21 15:43:44 +0200930 if (prop) {
931 /* partly deprecate snd-powermac, for those machines
932 * that have a layout-id property for now */
933 printk(KERN_INFO "snd-powermac no longer handles any "
934 "machines with a layout-id property "
935 "in the device-tree, use snd-aoa.\n");
936 return -ENODEV;
937 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938 /* This should be verified on older screamers */
939 if (device_is_compatible(sound, "screamer")) {
940 chip->model = PMAC_SCREAMER;
941 // chip->can_byte_swap = 0; /* FIXME: check this */
942 }
943 if (device_is_compatible(sound, "burgundy")) {
944 chip->model = PMAC_BURGUNDY;
945 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
946 }
947 if (device_is_compatible(sound, "daca")) {
948 chip->model = PMAC_DACA;
949 chip->can_capture = 0; /* no capture */
950 chip->can_duplex = 0;
951 // chip->can_byte_swap = 0; /* FIXME: check this */
952 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
953 }
954 if (device_is_compatible(sound, "tumbler")) {
955 chip->model = PMAC_TUMBLER;
956 chip->can_capture = 0; /* no capture */
957 chip->can_duplex = 0;
958 // chip->can_byte_swap = 0; /* FIXME: check this */
959 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
960 chip->freq_table = tumbler_freqs;
961 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
962 }
963 if (device_is_compatible(sound, "snapper")) {
964 chip->model = PMAC_SNAPPER;
965 // chip->can_byte_swap = 0; /* FIXME: check this */
966 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
967 chip->freq_table = tumbler_freqs;
968 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
969 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 prop = (unsigned int *)get_property(sound, "device-id", NULL);
971 if (prop)
972 chip->device_id = *prop;
973 chip->has_iic = (find_devices("perch") != NULL);
974
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700975 /* We need the PCI device for DMA allocations, let's use a crude method
976 * for now ...
977 */
978 macio = macio_find(chip->node, macio_unknown);
979 if (macio == NULL)
980 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
981 else {
982 struct pci_dev *pdev = NULL;
983
984 for_each_pci_dev(pdev) {
985 struct device_node *np = pci_device_to_OF_node(pdev);
986 if (np && np == macio->of_node) {
987 chip->pdev = pdev;
988 break;
989 }
990 }
991 }
992 if (chip->pdev == NULL)
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +0200993 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
994 " device !\n");
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -0700995
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 detect_byte_swap(chip);
997
998 /* look for a property saying what sample rates
999 are available */
1000 prop = (unsigned int *) get_property(sound, "sample-rates", &l);
1001 if (! prop)
Benjamin Herrenschmidt52180642005-05-18 16:31:51 +02001002 prop = (unsigned int *) get_property(sound,
1003 "output-frame-rates", &l);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 if (prop) {
1005 int i;
1006 chip->freqs_ok = 0;
1007 for (l /= sizeof(int); l > 0; --l) {
1008 unsigned int r = *prop++;
1009 /* Apple 'Fixed' format */
1010 if (r >= 0x10000)
1011 r >>= 16;
1012 for (i = 0; i < chip->num_freqs; ++i) {
1013 if (r == chip->freq_table[i]) {
1014 chip->freqs_ok |= (1 << i);
1015 break;
1016 }
1017 }
1018 }
1019 } else {
1020 /* assume only 44.1khz */
1021 chip->freqs_ok = 1;
1022 }
1023
1024 return 0;
1025}
1026
1027/*
1028 * exported - boolean info callbacks for ease of programming
1029 */
Takashi Iwai65b29f52005-11-17 15:09:46 +01001030int snd_pmac_boolean_stereo_info(struct snd_kcontrol *kcontrol,
1031 struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032{
1033 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1034 uinfo->count = 2;
1035 uinfo->value.integer.min = 0;
1036 uinfo->value.integer.max = 1;
1037 return 0;
1038}
1039
Takashi Iwai65b29f52005-11-17 15:09:46 +01001040int snd_pmac_boolean_mono_info(struct snd_kcontrol *kcontrol,
1041 struct snd_ctl_elem_info *uinfo)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042{
1043 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1044 uinfo->count = 1;
1045 uinfo->value.integer.min = 0;
1046 uinfo->value.integer.max = 1;
1047 return 0;
1048}
1049
1050#ifdef PMAC_SUPPORT_AUTOMUTE
1051/*
1052 * auto-mute
1053 */
Takashi Iwai65b29f52005-11-17 15:09:46 +01001054static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1055 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001057 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 ucontrol->value.integer.value[0] = chip->auto_mute;
1059 return 0;
1060}
1061
Takashi Iwai65b29f52005-11-17 15:09:46 +01001062static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1063 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001065 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1067 chip->auto_mute = ucontrol->value.integer.value[0];
1068 if (chip->update_automute)
1069 chip->update_automute(chip, 1);
1070 return 1;
1071 }
1072 return 0;
1073}
1074
Takashi Iwai65b29f52005-11-17 15:09:46 +01001075static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1076 struct snd_ctl_elem_value *ucontrol)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001078 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079 if (chip->detect_headphone)
1080 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1081 else
1082 ucontrol->value.integer.value[0] = 0;
1083 return 0;
1084}
1085
Takashi Iwai65b29f52005-11-17 15:09:46 +01001086static struct snd_kcontrol_new auto_mute_controls[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1088 .name = "Auto Mute Switch",
1089 .info = snd_pmac_boolean_mono_info,
1090 .get = pmac_auto_mute_get,
1091 .put = pmac_auto_mute_put,
1092 },
1093 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1094 .name = "Headphone Detection",
1095 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1096 .info = snd_pmac_boolean_mono_info,
1097 .get = pmac_hp_detect_get,
1098 },
1099};
1100
Takashi Iwai65b29f52005-11-17 15:09:46 +01001101int __init snd_pmac_add_automute(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102{
1103 int err;
1104 chip->auto_mute = 1;
1105 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001106 if (err < 0) {
1107 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108 return err;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001109 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1111 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1112}
1113#endif /* PMAC_SUPPORT_AUTOMUTE */
1114
1115/*
1116 * create and detect a pmac chip record
1117 */
Takashi Iwai65b29f52005-11-17 15:09:46 +01001118int __init snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119{
Takashi Iwai65b29f52005-11-17 15:09:46 +01001120 struct snd_pmac *chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121 struct device_node *np;
1122 int i, err;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001123 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
Takashi Iwai65b29f52005-11-17 15:09:46 +01001124 static struct snd_device_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125 .dev_free = snd_pmac_dev_free,
1126 };
1127
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 *chip_return = NULL;
1129
Takashi Iwai561b2202005-09-09 14:22:34 +02001130 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 if (chip == NULL)
1132 return -ENOMEM;
1133 chip->card = card;
1134
1135 spin_lock_init(&chip->reg_lock);
1136 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1137
1138 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1139 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1140
1141 if ((err = snd_pmac_detect(chip)) < 0)
1142 goto __error;
1143
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001144 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1145 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1146 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147 err = -ENOMEM;
1148 goto __error;
1149 }
1150
1151 np = chip->node;
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001152 chip->requested = 0;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001153 if (chip->is_k2) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001154 static char *rnames[] = {
1155 "Sound Control", "Sound DMA" };
1156 if (np->n_intrs < 3) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 err = -ENODEV;
1158 goto __error;
1159 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001160 for (i = 0; i < 2; i ++) {
1161 if (of_address_to_resource(np->parent, i,
1162 &chip->rsrc[i])) {
1163 printk(KERN_ERR "snd: can't translate rsrc "
1164 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001165 err = -ENODEV;
1166 goto __error;
1167 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001168 if (request_mem_region(chip->rsrc[i].start,
1169 chip->rsrc[i].end -
1170 chip->rsrc[i].start + 1,
1171 rnames[i]) == NULL) {
1172 printk(KERN_ERR "snd: can't request rsrc "
Greg Kroah-Hartmanaa0a2dd2006-06-12 14:50:27 -07001173 " %d (%s: 0x%016lx:%016lx)\n",
1174 i, rnames[i],
1175 (unsigned long long)chip->rsrc[i].start,
1176 (unsigned long long)chip->rsrc[i].end);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001177 err = -ENODEV;
1178 goto __error;
1179 }
1180 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001181 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001182 ctrl_addr = chip->rsrc[0].start;
1183 txdma_addr = chip->rsrc[1].start;
1184 rxdma_addr = txdma_addr + 0x100;
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001185 } else {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001186 static char *rnames[] = {
1187 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
1188 if (np->n_intrs < 3) {
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001189 err = -ENODEV;
1190 goto __error;
1191 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001192 for (i = 0; i < 3; i ++) {
Benjamin Herrenschmidt88356e92006-02-01 03:04:43 -08001193 if (of_address_to_resource(np, i,
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001194 &chip->rsrc[i])) {
1195 printk(KERN_ERR "snd: can't translate rsrc "
1196 " %d (%s)\n", i, rnames[i]);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001197 err = -ENODEV;
1198 goto __error;
1199 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001200 if (request_mem_region(chip->rsrc[i].start,
1201 chip->rsrc[i].end -
1202 chip->rsrc[i].start + 1,
1203 rnames[i]) == NULL) {
1204 printk(KERN_ERR "snd: can't request rsrc "
Greg Kroah-Hartmanaa0a2dd2006-06-12 14:50:27 -07001205 " %d (%s: 0x%016llx:%016llx)\n",
1206 i, rnames[i],
1207 (unsigned long long)chip->rsrc[i].start,
1208 (unsigned long long)chip->rsrc[i].end);
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001209 err = -ENODEV;
1210 goto __error;
1211 }
1212 chip->requested |= (1 << i);
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001213 }
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001214 ctrl_addr = chip->rsrc[0].start;
1215 txdma_addr = chip->rsrc[1].start;
1216 rxdma_addr = chip->rsrc[2].start;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217 }
1218
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001219 chip->awacs = ioremap(ctrl_addr, 0x1000);
1220 chip->playback.dma = ioremap(txdma_addr, 0x100);
1221 chip->capture.dma = ioremap(rxdma_addr, 0x100);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001222 if (chip->model <= PMAC_BURGUNDY) {
1223 if (request_irq(np->intrs[0].line, snd_pmac_ctrl_intr, 0,
1224 "PMac", (void*)chip)) {
1225 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[0].line);
1226 err = -EBUSY;
1227 goto __error;
1228 }
1229 chip->irq = np->intrs[0].line;
1230 }
1231 if (request_irq(np->intrs[1].line, snd_pmac_tx_intr, 0,
1232 "PMac Output", (void*)chip)) {
1233 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[1].line);
1234 err = -EBUSY;
1235 goto __error;
1236 }
1237 chip->tx_irq = np->intrs[1].line;
1238 if (request_irq(np->intrs[2].line, snd_pmac_rx_intr, 0,
1239 "PMac Input", (void*)chip)) {
1240 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[2].line);
1241 err = -EBUSY;
1242 goto __error;
1243 }
1244 chip->rx_irq = np->intrs[2].line;
1245
1246 snd_pmac_sound_feature(chip, 1);
1247
1248 /* reset */
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001249 if (chip->model == PMAC_AWACS)
1250 out_le32(&chip->awacs->control, 0x11);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251
1252 /* Powerbooks have odd ways of enabling inputs such as
1253 an expansion-bay CD or sound from an internal modem
1254 or a PC-card modem. */
1255 if (chip->is_pbook_3400) {
1256 /* Enable CD and PC-card sound inputs. */
1257 /* This is done by reading from address
1258 * f301a000, + 0x10 to enable the expansion-bay
1259 * CD sound input, + 0x80 to enable the PC-card
1260 * sound input. The 0x100 enables the SCSI bus
1261 * terminator power.
1262 */
1263 chip->latch_base = ioremap (0xf301a000, 0x1000);
1264 in_8(chip->latch_base + 0x190);
1265 } else if (chip->is_pbook_G3) {
1266 struct device_node* mio;
1267 for (mio = chip->node->parent; mio; mio = mio->parent) {
Benjamin Herrenschmidtcc5d0182005-12-13 18:01:21 +11001268 if (strcmp(mio->name, "mac-io") == 0) {
1269 struct resource r;
1270 if (of_address_to_resource(mio, 0, &r) == 0)
1271 chip->macio_base =
1272 ioremap(r.start, 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 break;
1274 }
1275 }
1276 /* Enable CD sound input. */
1277 /* The relevant bits for writing to this byte are 0x8f.
1278 * I haven't found out what the 0x80 bit does.
1279 * For the 0xf bits, writing 3 or 7 enables the CD
1280 * input, any other value disables it. Values
1281 * 1, 3, 5, 7 enable the microphone. Values 0, 2,
1282 * 4, 6, 8 - f enable the input from the modem.
1283 */
1284 if (chip->macio_base)
1285 out_8(chip->macio_base + 0x37, 3);
1286 }
1287
1288 /* Reset dbdma channels */
1289 snd_pmac_dbdma_reset(chip);
1290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1292 goto __error;
1293
1294 *chip_return = chip;
1295 return 0;
1296
1297 __error:
Benjamin Herrenschmidt7bbd8272005-04-16 15:24:32 -07001298 if (chip->pdev)
1299 pci_dev_put(chip->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300 snd_pmac_free(chip);
1301 return err;
1302}
1303
1304
1305/*
1306 * sleep notify for powerbook
1307 */
1308
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001309#ifdef CONFIG_PM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310
1311/*
1312 * Save state when going to sleep, restore it afterwards.
1313 */
1314
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001315void snd_pmac_suspend(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317 unsigned long flags;
1318
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001319 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 if (chip->suspend)
1321 chip->suspend(chip);
1322 snd_pcm_suspend_all(chip->pcm);
1323 spin_lock_irqsave(&chip->reg_lock, flags);
1324 snd_pmac_beep_stop(chip);
1325 spin_unlock_irqrestore(&chip->reg_lock, flags);
1326 if (chip->irq >= 0)
1327 disable_irq(chip->irq);
1328 if (chip->tx_irq >= 0)
1329 disable_irq(chip->tx_irq);
1330 if (chip->rx_irq >= 0)
1331 disable_irq(chip->rx_irq);
1332 snd_pmac_sound_feature(chip, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333}
1334
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001335void snd_pmac_resume(struct snd_pmac *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 snd_pmac_sound_feature(chip, 1);
1338 if (chip->resume)
1339 chip->resume(chip);
1340 /* enable CD sound input */
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001341 if (chip->macio_base && chip->is_pbook_G3)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342 out_8(chip->macio_base + 0x37, 3);
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001343 else if (chip->is_pbook_3400)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 in_8(chip->latch_base + 0x190);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345
1346 snd_pmac_pcm_set_format(chip);
1347
1348 if (chip->irq >= 0)
1349 enable_irq(chip->irq);
1350 if (chip->tx_irq >= 0)
1351 enable_irq(chip->tx_irq);
1352 if (chip->rx_irq >= 0)
1353 enable_irq(chip->rx_irq);
1354
Takashi Iwai5e12bea2005-11-17 17:17:08 +01001355 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356}
1357
Benjamin Herrenschmidt8c870932005-06-27 14:36:34 -07001358#endif /* CONFIG_PM */
1359