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Linux 3.11-rc3
[cris-mirror.git] / sound / pci / als300.c
blob591efb6eef05687a93ce4cd3b77a8a9134b6aa33
1 /*
2 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards.
3 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 * TODO
20 * 4 channel playback for ALS300+
21 * gameport
22 * mpu401
23 * opl3
24 *
25 * NOTES
26 * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to
27 * the position in the current period, NOT the whole buffer. It is important
28 * to know which period we are in so we can calculate the correct pointer.
29 * This is why we always use 2 periods. We can then use a flip-flop variable
30 * to keep track of what period we are in.
31 */
32
33 #include <linux/delay.h>
34 #include <linux/init.h>
35 #include <linux/module.h>
36 #include <linux/pci.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/interrupt.h>
39 #include <linux/slab.h>
40
41 #include <asm/io.h>
42
43 #include <sound/core.h>
44 #include <sound/control.h>
45 #include <sound/initval.h>
46 #include <sound/pcm.h>
47 #include <sound/pcm_params.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/opl3.h>
50
51 /* snd_als300_set_irq_flag */
52 #define IRQ_DISABLE 0
53 #define IRQ_ENABLE 1
54
55 /* I/O port layout */
56 #define AC97_ACCESS 0x00
57 #define AC97_READ 0x04
58 #define AC97_STATUS 0x06
59 #define AC97_DATA_AVAIL (1<<6)
60 #define AC97_BUSY (1<<7)
61 #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */
62 #define IRQ_PLAYBACK (1<<3)
63 #define IRQ_CAPTURE (1<<2)
64 #define GCR_DATA 0x08
65 #define GCR_INDEX 0x0C
66 #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */
67 #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */
68 #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */
69
70 /* General Control Registers */
71 #define PLAYBACK_START 0x80
72 #define PLAYBACK_END 0x81
73 #define PLAYBACK_CONTROL 0x82
74 #define TRANSFER_START (1<<16)
75 #define FIFO_PAUSE (1<<17)
76 #define RECORD_START 0x83
77 #define RECORD_END 0x84
78 #define RECORD_CONTROL 0x85
79 #define DRAM_WRITE_CONTROL 0x8B
80 #define WRITE_TRANS_START (1<<16)
81 #define DRAM_MODE_2 (1<<17)
82 #define MISC_CONTROL 0x8C
83 #define IRQ_SET_BIT (1<<15)
84 #define VMUTE_NORMAL (1<<20)
85 #define MMUTE_NORMAL (1<<21)
86 #define MUS_VOC_VOL 0x8E
87 #define PLAYBACK_BLOCK_COUNTER 0x9A
88 #define RECORD_BLOCK_COUNTER 0x9B
89
90 #define DEBUG_CALLS 0
91 #define DEBUG_PLAY_REC 0
92
93 #if DEBUG_CALLS
94 #define snd_als300_dbgcalls(format, args...) printk(KERN_DEBUG format, ##args)
95 #define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __func__)
96 #define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __func__)
97 #else
98 #define snd_als300_dbgcalls(format, args...)
99 #define snd_als300_dbgcallenter()
100 #define snd_als300_dbgcallleave()
101 #endif
102
103 #if DEBUG_PLAY_REC
104 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args)
105 #else
106 #define snd_als300_dbgplay(format, args...)
107 #endif
108
109 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS};
110
111 MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>");
112 MODULE_DESCRIPTION("Avance Logic ALS300");
113 MODULE_LICENSE("GPL");
114 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}");
115
116 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
117 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
118 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
119
120 module_param_array(index, int, NULL, 0444);
121 MODULE_PARM_DESC(index, "Index value for ALS300 sound card.");
122 module_param_array(id, charp, NULL, 0444);
123 MODULE_PARM_DESC(id, "ID string for ALS300 sound card.");
124 module_param_array(enable, bool, NULL, 0444);
125 MODULE_PARM_DESC(enable, "Enable ALS300 sound card.");
126
127 struct snd_als300 {
128 unsigned long port;
129 spinlock_t reg_lock;
130 struct snd_card *card;
131 struct pci_dev *pci;
132
133 struct snd_pcm *pcm;
134 struct snd_pcm_substream *playback_substream;
135 struct snd_pcm_substream *capture_substream;
136
137 struct snd_ac97 *ac97;
138 struct snd_opl3 *opl3;
139
140 struct resource *res_port;
141
142 int irq;
143
144 int chip_type; /* ALS300 or ALS300+ */
145
146 char revision;
147 };
148
149 struct snd_als300_substream_data {
150 int period_flipflop;
151 int control_register;
152 int block_counter_register;
153 };
154
155 static DEFINE_PCI_DEVICE_TABLE(snd_als300_ids) = {
156 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 },
157 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS },
158 { 0, }
159 };
160
161 MODULE_DEVICE_TABLE(pci, snd_als300_ids);
162
163 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg)
164 {
165 outb(reg, port+GCR_INDEX);
166 return inl(port+GCR_DATA);
167 }
168
169 static inline void snd_als300_gcr_write(unsigned long port,
170 unsigned short reg, u32 val)
171 {
172 outb(reg, port+GCR_INDEX);
173 outl(val, port+GCR_DATA);
174 }
175
176 /* Enable/Disable Interrupts */
177 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd)
178 {
179 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
180 snd_als300_dbgcallenter();
181
182 /* boolean XOR check, since old vs. new hardware have
183 directly reversed bit setting for ENABLE and DISABLE.
184 ALS300+ acts like newer versions of ALS300 */
185 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^
186 (cmd == IRQ_ENABLE)) == 0)
187 tmp |= IRQ_SET_BIT;
188 else
189 tmp &= ~IRQ_SET_BIT;
190 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);
191 snd_als300_dbgcallleave();
192 }
193
194 static int snd_als300_free(struct snd_als300 *chip)
195 {
196 snd_als300_dbgcallenter();
197 snd_als300_set_irq_flag(chip, IRQ_DISABLE);
198 if (chip->irq >= 0)
199 free_irq(chip->irq, chip);
200 pci_release_regions(chip->pci);
201 pci_disable_device(chip->pci);
202 kfree(chip);
203 snd_als300_dbgcallleave();
204 return 0;
205 }
206
207 static int snd_als300_dev_free(struct snd_device *device)
208 {
209 struct snd_als300 *chip = device->device_data;
210 return snd_als300_free(chip);
211 }
212
213 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id)
214 {
215 u8 status;
216 struct snd_als300 *chip = dev_id;
217 struct snd_als300_substream_data *data;
218
219 status = inb(chip->port+ALS300_IRQ_STATUS);
220 if (!status) /* shared IRQ, for different device?? Exit ASAP! */
221 return IRQ_NONE;
222
223 /* ACK everything ASAP */
224 outb(status, chip->port+ALS300_IRQ_STATUS);
225 if (status & IRQ_PLAYBACK) {
226 if (chip->pcm && chip->playback_substream) {
227 data = chip->playback_substream->runtime->private_data;
228 data->period_flipflop ^= 1;
229 snd_pcm_period_elapsed(chip->playback_substream);
230 snd_als300_dbgplay("IRQ_PLAYBACK\n");
231 }
232 }
233 if (status & IRQ_CAPTURE) {
234 if (chip->pcm && chip->capture_substream) {
235 data = chip->capture_substream->runtime->private_data;
236 data->period_flipflop ^= 1;
237 snd_pcm_period_elapsed(chip->capture_substream);
238 snd_als300_dbgplay("IRQ_CAPTURE\n");
239 }
240 }
241 return IRQ_HANDLED;
242 }
243
244 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)
245 {
246 u8 general, mpu, dram;
247 struct snd_als300 *chip = dev_id;
248 struct snd_als300_substream_data *data;
249
250 general = inb(chip->port+ALS300P_IRQ_STATUS);
251 mpu = inb(chip->port+MPU_IRQ_STATUS);
252 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS);
253
254 /* shared IRQ, for different device?? Exit ASAP! */
255 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0))
256 return IRQ_NONE;
257
258 if (general & IRQ_PLAYBACK) {
259 if (chip->pcm && chip->playback_substream) {
260 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS);
261 data = chip->playback_substream->runtime->private_data;
262 data->period_flipflop ^= 1;
263 snd_pcm_period_elapsed(chip->playback_substream);
264 snd_als300_dbgplay("IRQ_PLAYBACK\n");
265 }
266 }
267 if (general & IRQ_CAPTURE) {
268 if (chip->pcm && chip->capture_substream) {
269 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS);
270 data = chip->capture_substream->runtime->private_data;
271 data->period_flipflop ^= 1;
272 snd_pcm_period_elapsed(chip->capture_substream);
273 snd_als300_dbgplay("IRQ_CAPTURE\n");
274 }
275 }
276 /* FIXME: Ack other interrupt types. Not important right now as
277 * those other devices aren't enabled. */
278 return IRQ_HANDLED;
279 }
280
281 static void snd_als300_remove(struct pci_dev *pci)
282 {
283 snd_als300_dbgcallenter();
284 snd_card_free(pci_get_drvdata(pci));
285 snd_als300_dbgcallleave();
286 }
287
288 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
289 unsigned short reg)
290 {
291 int i;
292 struct snd_als300 *chip = ac97->private_data;
293
294 for (i = 0; i < 1000; i++) {
295 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
296 break;
297 udelay(10);
298 }
299 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);
300
301 for (i = 0; i < 1000; i++) {
302 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)
303 break;
304 udelay(10);
305 }
306 return inw(chip->port+AC97_READ);
307 }
308
309 static void snd_als300_ac97_write(struct snd_ac97 *ac97,
310 unsigned short reg, unsigned short val)
311 {
312 int i;
313 struct snd_als300 *chip = ac97->private_data;
314
315 for (i = 0; i < 1000; i++) {
316 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
317 break;
318 udelay(10);
319 }
320 outl((reg << 24) | val, chip->port+AC97_ACCESS);
321 }
322
323 static int snd_als300_ac97(struct snd_als300 *chip)
324 {
325 struct snd_ac97_bus *bus;
326 struct snd_ac97_template ac97;
327 int err;
328 static struct snd_ac97_bus_ops ops = {
329 .write = snd_als300_ac97_write,
330 .read = snd_als300_ac97_read,
331 };
332
333 snd_als300_dbgcallenter();
334 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0)
335 return err;
336
337 memset(&ac97, 0, sizeof(ac97));
338 ac97.private_data = chip;
339
340 snd_als300_dbgcallleave();
341 return snd_ac97_mixer(bus, &ac97, &chip->ac97);
342 }
343
344 /* hardware definition
345 *
346 * In AC97 mode, we always use 48k/16bit/stereo.
347 * Any request to change data type is ignored by
348 * the card when it is running outside of legacy
349 * mode.
350 */
351 static struct snd_pcm_hardware snd_als300_playback_hw =
352 {
353 .info = (SNDRV_PCM_INFO_MMAP |
354 SNDRV_PCM_INFO_INTERLEAVED |
355 SNDRV_PCM_INFO_PAUSE |
356 SNDRV_PCM_INFO_MMAP_VALID),
357 .formats = SNDRV_PCM_FMTBIT_S16,
358 .rates = SNDRV_PCM_RATE_48000,
359 .rate_min = 48000,
360 .rate_max = 48000,
361 .channels_min = 2,
362 .channels_max = 2,
363 .buffer_bytes_max = 64 * 1024,
364 .period_bytes_min = 64,
365 .period_bytes_max = 32 * 1024,
366 .periods_min = 2,
367 .periods_max = 2,
368 };
369
370 static struct snd_pcm_hardware snd_als300_capture_hw =
371 {
372 .info = (SNDRV_PCM_INFO_MMAP |
373 SNDRV_PCM_INFO_INTERLEAVED |
374 SNDRV_PCM_INFO_PAUSE |
375 SNDRV_PCM_INFO_MMAP_VALID),
376 .formats = SNDRV_PCM_FMTBIT_S16,
377 .rates = SNDRV_PCM_RATE_48000,
378 .rate_min = 48000,
379 .rate_max = 48000,
380 .channels_min = 2,
381 .channels_max = 2,
382 .buffer_bytes_max = 64 * 1024,
383 .period_bytes_min = 64,
384 .period_bytes_max = 32 * 1024,
385 .periods_min = 2,
386 .periods_max = 2,
387 };
388
389 static int snd_als300_playback_open(struct snd_pcm_substream *substream)
390 {
391 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
392 struct snd_pcm_runtime *runtime = substream->runtime;
393 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
394 GFP_KERNEL);
395
396 if (!data)
397 return -ENOMEM;
398 snd_als300_dbgcallenter();
399 chip->playback_substream = substream;
400 runtime->hw = snd_als300_playback_hw;
401 runtime->private_data = data;
402 data->control_register = PLAYBACK_CONTROL;
403 data->block_counter_register = PLAYBACK_BLOCK_COUNTER;
404 snd_als300_dbgcallleave();
405 return 0;
406 }
407
408 static int snd_als300_playback_close(struct snd_pcm_substream *substream)
409 {
410 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
411 struct snd_als300_substream_data *data;
412
413 data = substream->runtime->private_data;
414 snd_als300_dbgcallenter();
415 kfree(data);
416 chip->playback_substream = NULL;
417 snd_pcm_lib_free_pages(substream);
418 snd_als300_dbgcallleave();
419 return 0;
420 }
421
422 static int snd_als300_capture_open(struct snd_pcm_substream *substream)
423 {
424 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
425 struct snd_pcm_runtime *runtime = substream->runtime;
426 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
427 GFP_KERNEL);
428
429 if (!data)
430 return -ENOMEM;
431 snd_als300_dbgcallenter();
432 chip->capture_substream = substream;
433 runtime->hw = snd_als300_capture_hw;
434 runtime->private_data = data;
435 data->control_register = RECORD_CONTROL;
436 data->block_counter_register = RECORD_BLOCK_COUNTER;
437 snd_als300_dbgcallleave();
438 return 0;
439 }
440
441 static int snd_als300_capture_close(struct snd_pcm_substream *substream)
442 {
443 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
444 struct snd_als300_substream_data *data;
445
446 data = substream->runtime->private_data;
447 snd_als300_dbgcallenter();
448 kfree(data);
449 chip->capture_substream = NULL;
450 snd_pcm_lib_free_pages(substream);
451 snd_als300_dbgcallleave();
452 return 0;
453 }
454
455 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream,
456 struct snd_pcm_hw_params *hw_params)
457 {
458 return snd_pcm_lib_malloc_pages(substream,
459 params_buffer_bytes(hw_params));
460 }
461
462 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream)
463 {
464 return snd_pcm_lib_free_pages(substream);
465 }
466
467 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)
468 {
469 u32 tmp;
470 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
471 struct snd_pcm_runtime *runtime = substream->runtime;
472 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
473 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
474
475 snd_als300_dbgcallenter();
476 spin_lock_irq(&chip->reg_lock);
477 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
478 tmp &= ~TRANSFER_START;
479
480 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",
481 period_bytes, buffer_bytes);
482
483 /* set block size */
484 tmp &= 0xffff0000;
485 tmp |= period_bytes - 1;
486 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);
487
488 /* set dma area */
489 snd_als300_gcr_write(chip->port, PLAYBACK_START,
490 runtime->dma_addr);
491 snd_als300_gcr_write(chip->port, PLAYBACK_END,
492 runtime->dma_addr + buffer_bytes - 1);
493 spin_unlock_irq(&chip->reg_lock);
494 snd_als300_dbgcallleave();
495 return 0;
496 }
497
498 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)
499 {
500 u32 tmp;
501 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
502 struct snd_pcm_runtime *runtime = substream->runtime;
503 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
504 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
505
506 snd_als300_dbgcallenter();
507 spin_lock_irq(&chip->reg_lock);
508 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);
509 tmp &= ~TRANSFER_START;
510
511 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,
512 buffer_bytes);
513
514 /* set block size */
515 tmp &= 0xffff0000;
516 tmp |= period_bytes - 1;
517
518 /* set dma area */
519 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);
520 snd_als300_gcr_write(chip->port, RECORD_START,
521 runtime->dma_addr);
522 snd_als300_gcr_write(chip->port, RECORD_END,
523 runtime->dma_addr + buffer_bytes - 1);
524 spin_unlock_irq(&chip->reg_lock);
525 snd_als300_dbgcallleave();
526 return 0;
527 }
528
529 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)
530 {
531 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
532 u32 tmp;
533 struct snd_als300_substream_data *data;
534 unsigned short reg;
535 int ret = 0;
536
537 data = substream->runtime->private_data;
538 reg = data->control_register;
539
540 snd_als300_dbgcallenter();
541 spin_lock(&chip->reg_lock);
542 switch (cmd) {
543 case SNDRV_PCM_TRIGGER_START:
544 case SNDRV_PCM_TRIGGER_RESUME:
545 tmp = snd_als300_gcr_read(chip->port, reg);
546 data->period_flipflop = 1;
547 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);
548 snd_als300_dbgplay("TRIGGER START\n");
549 break;
550 case SNDRV_PCM_TRIGGER_STOP:
551 case SNDRV_PCM_TRIGGER_SUSPEND:
552 tmp = snd_als300_gcr_read(chip->port, reg);
553 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);
554 snd_als300_dbgplay("TRIGGER STOP\n");
555 break;
556 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
557 tmp = snd_als300_gcr_read(chip->port, reg);
558 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);
559 snd_als300_dbgplay("TRIGGER PAUSE\n");
560 break;
561 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
562 tmp = snd_als300_gcr_read(chip->port, reg);
563 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);
564 snd_als300_dbgplay("TRIGGER RELEASE\n");
565 break;
566 default:
567 snd_als300_dbgplay("TRIGGER INVALID\n");
568 ret = -EINVAL;
569 }
570 spin_unlock(&chip->reg_lock);
571 snd_als300_dbgcallleave();
572 return ret;
573 }
574
575 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)
576 {
577 u16 current_ptr;
578 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
579 struct snd_als300_substream_data *data;
580 unsigned short period_bytes;
581
582 data = substream->runtime->private_data;
583 period_bytes = snd_pcm_lib_period_bytes(substream);
584
585 snd_als300_dbgcallenter();
586 spin_lock(&chip->reg_lock);
587 current_ptr = (u16) snd_als300_gcr_read(chip->port,
588 data->block_counter_register) + 4;
589 spin_unlock(&chip->reg_lock);
590 if (current_ptr > period_bytes)
591 current_ptr = 0;
592 else
593 current_ptr = period_bytes - current_ptr;
594
595 if (data->period_flipflop == 0)
596 current_ptr += period_bytes;
597 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);
598 snd_als300_dbgcallleave();
599 return bytes_to_frames(substream->runtime, current_ptr);
600 }
601
602 static struct snd_pcm_ops snd_als300_playback_ops = {
603 .open = snd_als300_playback_open,
604 .close = snd_als300_playback_close,
605 .ioctl = snd_pcm_lib_ioctl,
606 .hw_params = snd_als300_pcm_hw_params,
607 .hw_free = snd_als300_pcm_hw_free,
608 .prepare = snd_als300_playback_prepare,
609 .trigger = snd_als300_trigger,
610 .pointer = snd_als300_pointer,
611 };
612
613 static struct snd_pcm_ops snd_als300_capture_ops = {
614 .open = snd_als300_capture_open,
615 .close = snd_als300_capture_close,
616 .ioctl = snd_pcm_lib_ioctl,
617 .hw_params = snd_als300_pcm_hw_params,
618 .hw_free = snd_als300_pcm_hw_free,
619 .prepare = snd_als300_capture_prepare,
620 .trigger = snd_als300_trigger,
621 .pointer = snd_als300_pointer,
622 };
623
624 static int snd_als300_new_pcm(struct snd_als300 *chip)
625 {
626 struct snd_pcm *pcm;
627 int err;
628
629 snd_als300_dbgcallenter();
630 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);
631 if (err < 0)
632 return err;
633 pcm->private_data = chip;
634 strcpy(pcm->name, "ALS300");
635 chip->pcm = pcm;
636
637 /* set operators */
638 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
639 &snd_als300_playback_ops);
640 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
641 &snd_als300_capture_ops);
642
643 /* pre-allocation of buffers */
644 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
645 snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
646 snd_als300_dbgcallleave();
647 return 0;
648 }
649
650 static void snd_als300_init(struct snd_als300 *chip)
651 {
652 unsigned long flags;
653 u32 tmp;
654
655 snd_als300_dbgcallenter();
656 spin_lock_irqsave(&chip->reg_lock, flags);
657 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)
658 & 0x0000000F;
659 /* Setup DRAM */
660 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);
661 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,
662 (tmp | DRAM_MODE_2)
663 & ~WRITE_TRANS_START);
664
665 /* Enable IRQ output */
666 snd_als300_set_irq_flag(chip, IRQ_ENABLE);
667
668 /* Unmute hardware devices so their outputs get routed to
669 * the onboard mixer */
670 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
671 snd_als300_gcr_write(chip->port, MISC_CONTROL,
672 tmp | VMUTE_NORMAL | MMUTE_NORMAL);
673
674 /* Reset volumes */
675 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);
676
677 /* Make sure playback transfer is stopped */
678 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
679 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,
680 tmp & ~TRANSFER_START);
681 spin_unlock_irqrestore(&chip->reg_lock, flags);
682 snd_als300_dbgcallleave();
683 }
684
685 static int snd_als300_create(struct snd_card *card,
686 struct pci_dev *pci, int chip_type,
687 struct snd_als300 **rchip)
688 {
689 struct snd_als300 *chip;
690 void *irq_handler;
691 int err;
692
693 static struct snd_device_ops ops = {
694 .dev_free = snd_als300_dev_free,
695 };
696 *rchip = NULL;
697
698 snd_als300_dbgcallenter();
699 if ((err = pci_enable_device(pci)) < 0)
700 return err;
701
702 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
703 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
704 printk(KERN_ERR "error setting 28bit DMA mask\n");
705 pci_disable_device(pci);
706 return -ENXIO;
707 }
708 pci_set_master(pci);
709
710 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
711 if (chip == NULL) {
712 pci_disable_device(pci);
713 return -ENOMEM;
714 }
715
716 chip->card = card;
717 chip->pci = pci;
718 chip->irq = -1;
719 chip->chip_type = chip_type;
720 spin_lock_init(&chip->reg_lock);
721
722 if ((err = pci_request_regions(pci, "ALS300")) < 0) {
723 kfree(chip);
724 pci_disable_device(pci);
725 return err;
726 }
727 chip->port = pci_resource_start(pci, 0);
728
729 if (chip->chip_type == DEVICE_ALS300_PLUS)
730 irq_handler = snd_als300plus_interrupt;
731 else
732 irq_handler = snd_als300_interrupt;
733
734 if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
735 KBUILD_MODNAME, chip)) {
736 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
737 snd_als300_free(chip);
738 return -EBUSY;
739 }
740 chip->irq = pci->irq;
741
742
743 snd_als300_init(chip);
744
745 err = snd_als300_ac97(chip);
746 if (err < 0) {
747 snd_printk(KERN_WARNING "Could not create ac97\n");
748 snd_als300_free(chip);
749 return err;
750 }
751
752 if ((err = snd_als300_new_pcm(chip)) < 0) {
753 snd_printk(KERN_WARNING "Could not create PCM\n");
754 snd_als300_free(chip);
755 return err;
756 }
757
758 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
759 chip, &ops)) < 0) {
760 snd_als300_free(chip);
761 return err;
762 }
763
764 snd_card_set_dev(card, &pci->dev);
765
766 *rchip = chip;
767 snd_als300_dbgcallleave();
768 return 0;
769 }
770
771 #ifdef CONFIG_PM_SLEEP
772 static int snd_als300_suspend(struct device *dev)
773 {
774 struct pci_dev *pci = to_pci_dev(dev);
775 struct snd_card *card = dev_get_drvdata(dev);
776 struct snd_als300 *chip = card->private_data;
777
778 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
779 snd_pcm_suspend_all(chip->pcm);
780 snd_ac97_suspend(chip->ac97);
781
782 pci_disable_device(pci);
783 pci_save_state(pci);
784 pci_set_power_state(pci, PCI_D3hot);
785 return 0;
786 }
787
788 static int snd_als300_resume(struct device *dev)
789 {
790 struct pci_dev *pci = to_pci_dev(dev);
791 struct snd_card *card = dev_get_drvdata(dev);
792 struct snd_als300 *chip = card->private_data;
793
794 pci_set_power_state(pci, PCI_D0);
795 pci_restore_state(pci);
796 if (pci_enable_device(pci) < 0) {
797 printk(KERN_ERR "als300: pci_enable_device failed, "
798 "disabling device\n");
799 snd_card_disconnect(card);
800 return -EIO;
801 }
802 pci_set_master(pci);
803
804 snd_als300_init(chip);
805 snd_ac97_resume(chip->ac97);
806
807 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
808 return 0;
809 }
810
811 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume);
812 #define SND_ALS300_PM_OPS &snd_als300_pm
813 #else
814 #define SND_ALS300_PM_OPS NULL
815 #endif
816
817 static int snd_als300_probe(struct pci_dev *pci,
818 const struct pci_device_id *pci_id)
819 {
820 static int dev;
821 struct snd_card *card;
822 struct snd_als300 *chip;
823 int err, chip_type;
824
825 if (dev >= SNDRV_CARDS)
826 return -ENODEV;
827 if (!enable[dev]) {
828 dev++;
829 return -ENOENT;
830 }
831
832 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
833
834 if (err < 0)
835 return err;
836
837 chip_type = pci_id->driver_data;
838
839 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) {
840 snd_card_free(card);
841 return err;
842 }
843 card->private_data = chip;
844
845 strcpy(card->driver, "ALS300");
846 if (chip->chip_type == DEVICE_ALS300_PLUS)
847 /* don't know much about ALS300+ yet
848 * print revision number for now */
849 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);
850 else
851 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +
852 chip->revision - 1);
853 sprintf(card->longname, "%s at 0x%lx irq %i",
854 card->shortname, chip->port, chip->irq);
855
856 if ((err = snd_card_register(card)) < 0) {
857 snd_card_free(card);
858 return err;
859 }
860 pci_set_drvdata(pci, card);
861 dev++;
862 return 0;
863 }
864
865 static struct pci_driver als300_driver = {
866 .name = KBUILD_MODNAME,
867 .id_table = snd_als300_ids,
868 .probe = snd_als300_probe,
869 .remove = snd_als300_remove,
870 .driver = {
871 .pm = SND_ALS300_PM_OPS,
872 },
873 };
874
875 module_pci_driver(als300_driver);
CRIS linux kernel tree