projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
ALSA: pci: clean up using module_pci_driver()
[deliverable/linux.git] / sound / pci / als300.c
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 __devexit snd_als300_remove(struct pci_dev *pci)
282 {
283 snd_als300_dbgcallenter();
284 snd_card_free(pci_get_drvdata(pci));
285 pci_set_drvdata(pci, NULL);
286 snd_als300_dbgcallleave();
287 }
288
289 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
290 unsigned short reg)
291 {
292 int i;
293 struct snd_als300 *chip = ac97->private_data;
294
295 for (i = 0; i < 1000; i++) {
296 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
297 break;
298 udelay(10);
299 }
300 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);
301
302 for (i = 0; i < 1000; i++) {
303 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)
304 break;
305 udelay(10);
306 }
307 return inw(chip->port+AC97_READ);
308 }
309
310 static void snd_als300_ac97_write(struct snd_ac97 *ac97,
311 unsigned short reg, unsigned short val)
312 {
313 int i;
314 struct snd_als300 *chip = ac97->private_data;
315
316 for (i = 0; i < 1000; i++) {
317 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
318 break;
319 udelay(10);
320 }
321 outl((reg << 24) | val, chip->port+AC97_ACCESS);
322 }
323
324 static int snd_als300_ac97(struct snd_als300 *chip)
325 {
326 struct snd_ac97_bus *bus;
327 struct snd_ac97_template ac97;
328 int err;
329 static struct snd_ac97_bus_ops ops = {
330 .write = snd_als300_ac97_write,
331 .read = snd_als300_ac97_read,
332 };
333
334 snd_als300_dbgcallenter();
335 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0)
336 return err;
337
338 memset(&ac97, 0, sizeof(ac97));
339 ac97.private_data = chip;
340
341 snd_als300_dbgcallleave();
342 return snd_ac97_mixer(bus, &ac97, &chip->ac97);
343 }
344
345 /* hardware definition
346 *
347 * In AC97 mode, we always use 48k/16bit/stereo.
348 * Any request to change data type is ignored by
349 * the card when it is running outside of legacy
350 * mode.
351 */
352 static struct snd_pcm_hardware snd_als300_playback_hw =
353 {
354 .info = (SNDRV_PCM_INFO_MMAP |
355 SNDRV_PCM_INFO_INTERLEAVED |
356 SNDRV_PCM_INFO_PAUSE |
357 SNDRV_PCM_INFO_MMAP_VALID),
358 .formats = SNDRV_PCM_FMTBIT_S16,
359 .rates = SNDRV_PCM_RATE_48000,
360 .rate_min = 48000,
361 .rate_max = 48000,
362 .channels_min = 2,
363 .channels_max = 2,
364 .buffer_bytes_max = 64 * 1024,
365 .period_bytes_min = 64,
366 .period_bytes_max = 32 * 1024,
367 .periods_min = 2,
368 .periods_max = 2,
369 };
370
371 static struct snd_pcm_hardware snd_als300_capture_hw =
372 {
373 .info = (SNDRV_PCM_INFO_MMAP |
374 SNDRV_PCM_INFO_INTERLEAVED |
375 SNDRV_PCM_INFO_PAUSE |
376 SNDRV_PCM_INFO_MMAP_VALID),
377 .formats = SNDRV_PCM_FMTBIT_S16,
378 .rates = SNDRV_PCM_RATE_48000,
379 .rate_min = 48000,
380 .rate_max = 48000,
381 .channels_min = 2,
382 .channels_max = 2,
383 .buffer_bytes_max = 64 * 1024,
384 .period_bytes_min = 64,
385 .period_bytes_max = 32 * 1024,
386 .periods_min = 2,
387 .periods_max = 2,
388 };
389
390 static int snd_als300_playback_open(struct snd_pcm_substream *substream)
391 {
392 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
393 struct snd_pcm_runtime *runtime = substream->runtime;
394 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
395 GFP_KERNEL);
396
397 snd_als300_dbgcallenter();
398 chip->playback_substream = substream;
399 runtime->hw = snd_als300_playback_hw;
400 runtime->private_data = data;
401 data->control_register = PLAYBACK_CONTROL;
402 data->block_counter_register = PLAYBACK_BLOCK_COUNTER;
403 snd_als300_dbgcallleave();
404 return 0;
405 }
406
407 static int snd_als300_playback_close(struct snd_pcm_substream *substream)
408 {
409 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
410 struct snd_als300_substream_data *data;
411
412 data = substream->runtime->private_data;
413 snd_als300_dbgcallenter();
414 kfree(data);
415 chip->playback_substream = NULL;
416 snd_pcm_lib_free_pages(substream);
417 snd_als300_dbgcallleave();
418 return 0;
419 }
420
421 static int snd_als300_capture_open(struct snd_pcm_substream *substream)
422 {
423 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
424 struct snd_pcm_runtime *runtime = substream->runtime;
425 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
426 GFP_KERNEL);
427
428 snd_als300_dbgcallenter();
429 chip->capture_substream = substream;
430 runtime->hw = snd_als300_capture_hw;
431 runtime->private_data = data;
432 data->control_register = RECORD_CONTROL;
433 data->block_counter_register = RECORD_BLOCK_COUNTER;
434 snd_als300_dbgcallleave();
435 return 0;
436 }
437
438 static int snd_als300_capture_close(struct snd_pcm_substream *substream)
439 {
440 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
441 struct snd_als300_substream_data *data;
442
443 data = substream->runtime->private_data;
444 snd_als300_dbgcallenter();
445 kfree(data);
446 chip->capture_substream = NULL;
447 snd_pcm_lib_free_pages(substream);
448 snd_als300_dbgcallleave();
449 return 0;
450 }
451
452 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream,
453 struct snd_pcm_hw_params *hw_params)
454 {
455 return snd_pcm_lib_malloc_pages(substream,
456 params_buffer_bytes(hw_params));
457 }
458
459 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream)
460 {
461 return snd_pcm_lib_free_pages(substream);
462 }
463
464 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)
465 {
466 u32 tmp;
467 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
468 struct snd_pcm_runtime *runtime = substream->runtime;
469 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
470 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
471
472 snd_als300_dbgcallenter();
473 spin_lock_irq(&chip->reg_lock);
474 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
475 tmp &= ~TRANSFER_START;
476
477 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",
478 period_bytes, buffer_bytes);
479
480 /* set block size */
481 tmp &= 0xffff0000;
482 tmp |= period_bytes - 1;
483 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);
484
485 /* set dma area */
486 snd_als300_gcr_write(chip->port, PLAYBACK_START,
487 runtime->dma_addr);
488 snd_als300_gcr_write(chip->port, PLAYBACK_END,
489 runtime->dma_addr + buffer_bytes - 1);
490 spin_unlock_irq(&chip->reg_lock);
491 snd_als300_dbgcallleave();
492 return 0;
493 }
494
495 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)
496 {
497 u32 tmp;
498 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
499 struct snd_pcm_runtime *runtime = substream->runtime;
500 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
501 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
502
503 snd_als300_dbgcallenter();
504 spin_lock_irq(&chip->reg_lock);
505 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);
506 tmp &= ~TRANSFER_START;
507
508 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,
509 buffer_bytes);
510
511 /* set block size */
512 tmp &= 0xffff0000;
513 tmp |= period_bytes - 1;
514
515 /* set dma area */
516 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);
517 snd_als300_gcr_write(chip->port, RECORD_START,
518 runtime->dma_addr);
519 snd_als300_gcr_write(chip->port, RECORD_END,
520 runtime->dma_addr + buffer_bytes - 1);
521 spin_unlock_irq(&chip->reg_lock);
522 snd_als300_dbgcallleave();
523 return 0;
524 }
525
526 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)
527 {
528 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
529 u32 tmp;
530 struct snd_als300_substream_data *data;
531 unsigned short reg;
532 int ret = 0;
533
534 data = substream->runtime->private_data;
535 reg = data->control_register;
536
537 snd_als300_dbgcallenter();
538 spin_lock(&chip->reg_lock);
539 switch (cmd) {
540 case SNDRV_PCM_TRIGGER_START:
541 case SNDRV_PCM_TRIGGER_RESUME:
542 tmp = snd_als300_gcr_read(chip->port, reg);
543 data->period_flipflop = 1;
544 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);
545 snd_als300_dbgplay("TRIGGER START\n");
546 break;
547 case SNDRV_PCM_TRIGGER_STOP:
548 case SNDRV_PCM_TRIGGER_SUSPEND:
549 tmp = snd_als300_gcr_read(chip->port, reg);
550 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);
551 snd_als300_dbgplay("TRIGGER STOP\n");
552 break;
553 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
554 tmp = snd_als300_gcr_read(chip->port, reg);
555 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);
556 snd_als300_dbgplay("TRIGGER PAUSE\n");
557 break;
558 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
559 tmp = snd_als300_gcr_read(chip->port, reg);
560 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);
561 snd_als300_dbgplay("TRIGGER RELEASE\n");
562 break;
563 default:
564 snd_als300_dbgplay("TRIGGER INVALID\n");
565 ret = -EINVAL;
566 }
567 spin_unlock(&chip->reg_lock);
568 snd_als300_dbgcallleave();
569 return ret;
570 }
571
572 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)
573 {
574 u16 current_ptr;
575 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
576 struct snd_als300_substream_data *data;
577 unsigned short period_bytes;
578
579 data = substream->runtime->private_data;
580 period_bytes = snd_pcm_lib_period_bytes(substream);
581
582 snd_als300_dbgcallenter();
583 spin_lock(&chip->reg_lock);
584 current_ptr = (u16) snd_als300_gcr_read(chip->port,
585 data->block_counter_register) + 4;
586 spin_unlock(&chip->reg_lock);
587 if (current_ptr > period_bytes)
588 current_ptr = 0;
589 else
590 current_ptr = period_bytes - current_ptr;
591
592 if (data->period_flipflop == 0)
593 current_ptr += period_bytes;
594 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);
595 snd_als300_dbgcallleave();
596 return bytes_to_frames(substream->runtime, current_ptr);
597 }
598
599 static struct snd_pcm_ops snd_als300_playback_ops = {
600 .open = snd_als300_playback_open,
601 .close = snd_als300_playback_close,
602 .ioctl = snd_pcm_lib_ioctl,
603 .hw_params = snd_als300_pcm_hw_params,
604 .hw_free = snd_als300_pcm_hw_free,
605 .prepare = snd_als300_playback_prepare,
606 .trigger = snd_als300_trigger,
607 .pointer = snd_als300_pointer,
608 };
609
610 static struct snd_pcm_ops snd_als300_capture_ops = {
611 .open = snd_als300_capture_open,
612 .close = snd_als300_capture_close,
613 .ioctl = snd_pcm_lib_ioctl,
614 .hw_params = snd_als300_pcm_hw_params,
615 .hw_free = snd_als300_pcm_hw_free,
616 .prepare = snd_als300_capture_prepare,
617 .trigger = snd_als300_trigger,
618 .pointer = snd_als300_pointer,
619 };
620
621 static int __devinit snd_als300_new_pcm(struct snd_als300 *chip)
622 {
623 struct snd_pcm *pcm;
624 int err;
625
626 snd_als300_dbgcallenter();
627 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);
628 if (err < 0)
629 return err;
630 pcm->private_data = chip;
631 strcpy(pcm->name, "ALS300");
632 chip->pcm = pcm;
633
634 /* set operators */
635 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
636 &snd_als300_playback_ops);
637 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
638 &snd_als300_capture_ops);
639
640 /* pre-allocation of buffers */
641 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
642 snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
643 snd_als300_dbgcallleave();
644 return 0;
645 }
646
647 static void snd_als300_init(struct snd_als300 *chip)
648 {
649 unsigned long flags;
650 u32 tmp;
651
652 snd_als300_dbgcallenter();
653 spin_lock_irqsave(&chip->reg_lock, flags);
654 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)
655 & 0x0000000F;
656 /* Setup DRAM */
657 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);
658 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,
659 (tmp | DRAM_MODE_2)
660 & ~WRITE_TRANS_START);
661
662 /* Enable IRQ output */
663 snd_als300_set_irq_flag(chip, IRQ_ENABLE);
664
665 /* Unmute hardware devices so their outputs get routed to
666 * the onboard mixer */
667 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
668 snd_als300_gcr_write(chip->port, MISC_CONTROL,
669 tmp | VMUTE_NORMAL | MMUTE_NORMAL);
670
671 /* Reset volumes */
672 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);
673
674 /* Make sure playback transfer is stopped */
675 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
676 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,
677 tmp & ~TRANSFER_START);
678 spin_unlock_irqrestore(&chip->reg_lock, flags);
679 snd_als300_dbgcallleave();
680 }
681
682 static int __devinit snd_als300_create(struct snd_card *card,
683 struct pci_dev *pci, int chip_type,
684 struct snd_als300 **rchip)
685 {
686 struct snd_als300 *chip;
687 void *irq_handler;
688 int err;
689
690 static struct snd_device_ops ops = {
691 .dev_free = snd_als300_dev_free,
692 };
693 *rchip = NULL;
694
695 snd_als300_dbgcallenter();
696 if ((err = pci_enable_device(pci)) < 0)
697 return err;
698
699 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
700 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
701 printk(KERN_ERR "error setting 28bit DMA mask\n");
702 pci_disable_device(pci);
703 return -ENXIO;
704 }
705 pci_set_master(pci);
706
707 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
708 if (chip == NULL) {
709 pci_disable_device(pci);
710 return -ENOMEM;
711 }
712
713 chip->card = card;
714 chip->pci = pci;
715 chip->irq = -1;
716 chip->chip_type = chip_type;
717 spin_lock_init(&chip->reg_lock);
718
719 if ((err = pci_request_regions(pci, "ALS300")) < 0) {
720 kfree(chip);
721 pci_disable_device(pci);
722 return err;
723 }
724 chip->port = pci_resource_start(pci, 0);
725
726 if (chip->chip_type == DEVICE_ALS300_PLUS)
727 irq_handler = snd_als300plus_interrupt;
728 else
729 irq_handler = snd_als300_interrupt;
730
731 if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
732 KBUILD_MODNAME, chip)) {
733 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
734 snd_als300_free(chip);
735 return -EBUSY;
736 }
737 chip->irq = pci->irq;
738
739
740 snd_als300_init(chip);
741
742 err = snd_als300_ac97(chip);
743 if (err < 0) {
744 snd_printk(KERN_WARNING "Could not create ac97\n");
745 snd_als300_free(chip);
746 return err;
747 }
748
749 if ((err = snd_als300_new_pcm(chip)) < 0) {
750 snd_printk(KERN_WARNING "Could not create PCM\n");
751 snd_als300_free(chip);
752 return err;
753 }
754
755 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
756 chip, &ops)) < 0) {
757 snd_als300_free(chip);
758 return err;
759 }
760
761 snd_card_set_dev(card, &pci->dev);
762
763 *rchip = chip;
764 snd_als300_dbgcallleave();
765 return 0;
766 }
767
768 #ifdef CONFIG_PM
769 static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state)
770 {
771 struct snd_card *card = pci_get_drvdata(pci);
772 struct snd_als300 *chip = card->private_data;
773
774 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
775 snd_pcm_suspend_all(chip->pcm);
776 snd_ac97_suspend(chip->ac97);
777
778 pci_disable_device(pci);
779 pci_save_state(pci);
780 pci_set_power_state(pci, pci_choose_state(pci, state));
781 return 0;
782 }
783
784 static int snd_als300_resume(struct pci_dev *pci)
785 {
786 struct snd_card *card = pci_get_drvdata(pci);
787 struct snd_als300 *chip = card->private_data;
788
789 pci_set_power_state(pci, PCI_D0);
790 pci_restore_state(pci);
791 if (pci_enable_device(pci) < 0) {
792 printk(KERN_ERR "als300: pci_enable_device failed, "
793 "disabling device\n");
794 snd_card_disconnect(card);
795 return -EIO;
796 }
797 pci_set_master(pci);
798
799 snd_als300_init(chip);
800 snd_ac97_resume(chip->ac97);
801
802 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
803 return 0;
804 }
805 #endif
806
807 static int __devinit snd_als300_probe(struct pci_dev *pci,
808 const struct pci_device_id *pci_id)
809 {
810 static int dev;
811 struct snd_card *card;
812 struct snd_als300 *chip;
813 int err, chip_type;
814
815 if (dev >= SNDRV_CARDS)
816 return -ENODEV;
817 if (!enable[dev]) {
818 dev++;
819 return -ENOENT;
820 }
821
822 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
823
824 if (err < 0)
825 return err;
826
827 chip_type = pci_id->driver_data;
828
829 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) {
830 snd_card_free(card);
831 return err;
832 }
833 card->private_data = chip;
834
835 strcpy(card->driver, "ALS300");
836 if (chip->chip_type == DEVICE_ALS300_PLUS)
837 /* don't know much about ALS300+ yet
838 * print revision number for now */
839 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);
840 else
841 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +
842 chip->revision - 1);
843 sprintf(card->longname, "%s at 0x%lx irq %i",
844 card->shortname, chip->port, chip->irq);
845
846 if ((err = snd_card_register(card)) < 0) {
847 snd_card_free(card);
848 return err;
849 }
850 pci_set_drvdata(pci, card);
851 dev++;
852 return 0;
853 }
854
855 static struct pci_driver als300_driver = {
856 .name = KBUILD_MODNAME,
857 .id_table = snd_als300_ids,
858 .probe = snd_als300_probe,
859 .remove = __devexit_p(snd_als300_remove),
860 #ifdef CONFIG_PM
861 .suspend = snd_als300_suspend,
862 .resume = snd_als300_resume,
863 #endif
864 };
865
866 module_pci_driver(als300_driver);
Linux kernel - Deliverables
This page took 0.050558 seconds and 5 git commands to generate.