2 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards.
3 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net>
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.
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.
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
20 * 4 channel playback for ALS300+
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.
33 #include <linux/delay.h>
34 #include <linux/init.h>
35 #include <linux/moduleparam.h>
36 #include <linux/pci.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/interrupt.h>
39 #include <linux/slab.h>
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>
51 /* snd_als300_set_irq_flag */
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)
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 */
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
91 #define DEBUG_PLAY_REC 0
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__)
98 #define snd_als300_dbgcalls(format, args...)
99 #define snd_als300_dbgcallenter()
100 #define snd_als300_dbgcallleave()
104 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args)
106 #define snd_als300_dbgplay(format, args...)
109 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS};
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+}}");
116 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
117 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
118 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
123 struct snd_card *card;
127 struct snd_pcm_substream *playback_substream;
128 struct snd_pcm_substream *capture_substream;
130 struct snd_ac97 *ac97;
131 struct snd_opl3 *opl3;
133 struct resource *res_port;
137 int chip_type; /* ALS300 or ALS300+ */
142 struct snd_als300_substream_data {
144 int control_register;
145 int block_counter_register;
148 static struct pci_device_id snd_als300_ids[] = {
149 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 },
150 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS },
154 MODULE_DEVICE_TABLE(pci, snd_als300_ids);
156 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg)
158 outb(reg, port+GCR_INDEX);
159 return inl(port+GCR_DATA);
162 static inline void snd_als300_gcr_write(unsigned long port,
163 unsigned short reg, u32 val)
165 outb(reg, port+GCR_INDEX);
166 outl(val, port+GCR_DATA);
169 /* Enable/Disable Interrupts */
170 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd)
172 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
173 snd_als300_dbgcallenter();
175 /* boolean XOR check, since old vs. new hardware have
176 directly reversed bit setting for ENABLE and DISABLE.
177 ALS300+ acts like newer versions of ALS300 */
178 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^
179 (cmd == IRQ_ENABLE)) == 0)
183 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);
184 snd_als300_dbgcallleave();
187 static int snd_als300_free(struct snd_als300 *chip)
189 snd_als300_dbgcallenter();
190 snd_als300_set_irq_flag(chip, IRQ_DISABLE);
192 free_irq(chip->irq, chip);
193 pci_release_regions(chip->pci);
194 pci_disable_device(chip->pci);
196 snd_als300_dbgcallleave();
200 static int snd_als300_dev_free(struct snd_device *device)
202 struct snd_als300 *chip = device->device_data;
203 return snd_als300_free(chip);
206 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id)
209 struct snd_als300 *chip = dev_id;
210 struct snd_als300_substream_data *data;
212 status = inb(chip->port+ALS300_IRQ_STATUS);
213 if (!status) /* shared IRQ, for different device?? Exit ASAP! */
216 /* ACK everything ASAP */
217 outb(status, chip->port+ALS300_IRQ_STATUS);
218 if (status & IRQ_PLAYBACK) {
219 if (chip->pcm && chip->playback_substream) {
220 data = chip->playback_substream->runtime->private_data;
221 data->period_flipflop ^= 1;
222 snd_pcm_period_elapsed(chip->playback_substream);
223 snd_als300_dbgplay("IRQ_PLAYBACK\n");
226 if (status & IRQ_CAPTURE) {
227 if (chip->pcm && chip->capture_substream) {
228 data = chip->capture_substream->runtime->private_data;
229 data->period_flipflop ^= 1;
230 snd_pcm_period_elapsed(chip->capture_substream);
231 snd_als300_dbgplay("IRQ_CAPTURE\n");
237 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id)
239 u8 general, mpu, dram;
240 struct snd_als300 *chip = dev_id;
241 struct snd_als300_substream_data *data;
243 general = inb(chip->port+ALS300P_IRQ_STATUS);
244 mpu = inb(chip->port+MPU_IRQ_STATUS);
245 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS);
247 /* shared IRQ, for different device?? Exit ASAP! */
248 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0))
251 if (general & IRQ_PLAYBACK) {
252 if (chip->pcm && chip->playback_substream) {
253 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS);
254 data = chip->playback_substream->runtime->private_data;
255 data->period_flipflop ^= 1;
256 snd_pcm_period_elapsed(chip->playback_substream);
257 snd_als300_dbgplay("IRQ_PLAYBACK\n");
260 if (general & IRQ_CAPTURE) {
261 if (chip->pcm && chip->capture_substream) {
262 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS);
263 data = chip->capture_substream->runtime->private_data;
264 data->period_flipflop ^= 1;
265 snd_pcm_period_elapsed(chip->capture_substream);
266 snd_als300_dbgplay("IRQ_CAPTURE\n");
269 /* FIXME: Ack other interrupt types. Not important right now as
270 * those other devices aren't enabled. */
274 static void __devexit snd_als300_remove(struct pci_dev *pci)
276 snd_als300_dbgcallenter();
277 snd_card_free(pci_get_drvdata(pci));
278 pci_set_drvdata(pci, NULL);
279 snd_als300_dbgcallleave();
282 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
286 struct snd_als300 *chip = ac97->private_data;
288 for (i = 0; i < 1000; i++) {
289 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
293 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);
295 for (i = 0; i < 1000; i++) {
296 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)
300 return inw(chip->port+AC97_READ);
303 static void snd_als300_ac97_write(struct snd_ac97 *ac97,
304 unsigned short reg, unsigned short val)
307 struct snd_als300 *chip = ac97->private_data;
309 for (i = 0; i < 1000; i++) {
310 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
314 outl((reg << 24) | val, chip->port+AC97_ACCESS);
317 static int snd_als300_ac97(struct snd_als300 *chip)
319 struct snd_ac97_bus *bus;
320 struct snd_ac97_template ac97;
322 static struct snd_ac97_bus_ops ops = {
323 .write = snd_als300_ac97_write,
324 .read = snd_als300_ac97_read,
327 snd_als300_dbgcallenter();
328 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0)
331 memset(&ac97, 0, sizeof(ac97));
332 ac97.private_data = chip;
334 snd_als300_dbgcallleave();
335 return snd_ac97_mixer(bus, &ac97, &chip->ac97);
338 /* hardware definition
340 * In AC97 mode, we always use 48k/16bit/stereo.
341 * Any request to change data type is ignored by
342 * the card when it is running outside of legacy
345 static struct snd_pcm_hardware snd_als300_playback_hw =
347 .info = (SNDRV_PCM_INFO_MMAP |
348 SNDRV_PCM_INFO_INTERLEAVED |
349 SNDRV_PCM_INFO_PAUSE |
350 SNDRV_PCM_INFO_MMAP_VALID),
351 .formats = SNDRV_PCM_FMTBIT_S16,
352 .rates = SNDRV_PCM_RATE_48000,
357 .buffer_bytes_max = 64 * 1024,
358 .period_bytes_min = 64,
359 .period_bytes_max = 32 * 1024,
364 static struct snd_pcm_hardware snd_als300_capture_hw =
366 .info = (SNDRV_PCM_INFO_MMAP |
367 SNDRV_PCM_INFO_INTERLEAVED |
368 SNDRV_PCM_INFO_PAUSE |
369 SNDRV_PCM_INFO_MMAP_VALID),
370 .formats = SNDRV_PCM_FMTBIT_S16,
371 .rates = SNDRV_PCM_RATE_48000,
376 .buffer_bytes_max = 64 * 1024,
377 .period_bytes_min = 64,
378 .period_bytes_max = 32 * 1024,
383 static int snd_als300_playback_open(struct snd_pcm_substream *substream)
385 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
386 struct snd_pcm_runtime *runtime = substream->runtime;
387 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
390 snd_als300_dbgcallenter();
391 chip->playback_substream = substream;
392 runtime->hw = snd_als300_playback_hw;
393 runtime->private_data = data;
394 data->control_register = PLAYBACK_CONTROL;
395 data->block_counter_register = PLAYBACK_BLOCK_COUNTER;
396 snd_als300_dbgcallleave();
400 static int snd_als300_playback_close(struct snd_pcm_substream *substream)
402 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
403 struct snd_als300_substream_data *data;
405 data = substream->runtime->private_data;
406 snd_als300_dbgcallenter();
408 chip->playback_substream = NULL;
409 snd_pcm_lib_free_pages(substream);
410 snd_als300_dbgcallleave();
414 static int snd_als300_capture_open(struct snd_pcm_substream *substream)
416 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
417 struct snd_pcm_runtime *runtime = substream->runtime;
418 struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
421 snd_als300_dbgcallenter();
422 chip->capture_substream = substream;
423 runtime->hw = snd_als300_capture_hw;
424 runtime->private_data = data;
425 data->control_register = RECORD_CONTROL;
426 data->block_counter_register = RECORD_BLOCK_COUNTER;
427 snd_als300_dbgcallleave();
431 static int snd_als300_capture_close(struct snd_pcm_substream *substream)
433 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
434 struct snd_als300_substream_data *data;
436 data = substream->runtime->private_data;
437 snd_als300_dbgcallenter();
439 chip->capture_substream = NULL;
440 snd_pcm_lib_free_pages(substream);
441 snd_als300_dbgcallleave();
445 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream,
446 struct snd_pcm_hw_params *hw_params)
448 return snd_pcm_lib_malloc_pages(substream,
449 params_buffer_bytes(hw_params));
452 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream)
454 return snd_pcm_lib_free_pages(substream);
457 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)
460 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
461 struct snd_pcm_runtime *runtime = substream->runtime;
462 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
463 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
465 snd_als300_dbgcallenter();
466 spin_lock_irq(&chip->reg_lock);
467 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
468 tmp &= ~TRANSFER_START;
470 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",
471 period_bytes, buffer_bytes);
475 tmp |= period_bytes - 1;
476 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);
479 snd_als300_gcr_write(chip->port, PLAYBACK_START,
481 snd_als300_gcr_write(chip->port, PLAYBACK_END,
482 runtime->dma_addr + buffer_bytes - 1);
483 spin_unlock_irq(&chip->reg_lock);
484 snd_als300_dbgcallleave();
488 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)
491 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
492 struct snd_pcm_runtime *runtime = substream->runtime;
493 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
494 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
496 snd_als300_dbgcallenter();
497 spin_lock_irq(&chip->reg_lock);
498 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);
499 tmp &= ~TRANSFER_START;
501 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,
506 tmp |= period_bytes - 1;
509 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);
510 snd_als300_gcr_write(chip->port, RECORD_START,
512 snd_als300_gcr_write(chip->port, RECORD_END,
513 runtime->dma_addr + buffer_bytes - 1);
514 spin_unlock_irq(&chip->reg_lock);
515 snd_als300_dbgcallleave();
519 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)
521 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
523 struct snd_als300_substream_data *data;
527 data = substream->runtime->private_data;
528 reg = data->control_register;
530 snd_als300_dbgcallenter();
531 spin_lock(&chip->reg_lock);
533 case SNDRV_PCM_TRIGGER_START:
534 case SNDRV_PCM_TRIGGER_RESUME:
535 tmp = snd_als300_gcr_read(chip->port, reg);
536 data->period_flipflop = 1;
537 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);
538 snd_als300_dbgplay("TRIGGER START\n");
540 case SNDRV_PCM_TRIGGER_STOP:
541 case SNDRV_PCM_TRIGGER_SUSPEND:
542 tmp = snd_als300_gcr_read(chip->port, reg);
543 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);
544 snd_als300_dbgplay("TRIGGER STOP\n");
546 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
547 tmp = snd_als300_gcr_read(chip->port, reg);
548 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);
549 snd_als300_dbgplay("TRIGGER PAUSE\n");
551 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
552 tmp = snd_als300_gcr_read(chip->port, reg);
553 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);
554 snd_als300_dbgplay("TRIGGER RELEASE\n");
557 snd_als300_dbgplay("TRIGGER INVALID\n");
560 spin_unlock(&chip->reg_lock);
561 snd_als300_dbgcallleave();
565 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)
568 struct snd_als300 *chip = snd_pcm_substream_chip(substream);
569 struct snd_als300_substream_data *data;
570 unsigned short period_bytes;
572 data = substream->runtime->private_data;
573 period_bytes = snd_pcm_lib_period_bytes(substream);
575 snd_als300_dbgcallenter();
576 spin_lock(&chip->reg_lock);
577 current_ptr = (u16) snd_als300_gcr_read(chip->port,
578 data->block_counter_register) + 4;
579 spin_unlock(&chip->reg_lock);
580 if (current_ptr > period_bytes)
583 current_ptr = period_bytes - current_ptr;
585 if (data->period_flipflop == 0)
586 current_ptr += period_bytes;
587 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);
588 snd_als300_dbgcallleave();
589 return bytes_to_frames(substream->runtime, current_ptr);
592 static struct snd_pcm_ops snd_als300_playback_ops = {
593 .open = snd_als300_playback_open,
594 .close = snd_als300_playback_close,
595 .ioctl = snd_pcm_lib_ioctl,
596 .hw_params = snd_als300_pcm_hw_params,
597 .hw_free = snd_als300_pcm_hw_free,
598 .prepare = snd_als300_playback_prepare,
599 .trigger = snd_als300_trigger,
600 .pointer = snd_als300_pointer,
603 static struct snd_pcm_ops snd_als300_capture_ops = {
604 .open = snd_als300_capture_open,
605 .close = snd_als300_capture_close,
606 .ioctl = snd_pcm_lib_ioctl,
607 .hw_params = snd_als300_pcm_hw_params,
608 .hw_free = snd_als300_pcm_hw_free,
609 .prepare = snd_als300_capture_prepare,
610 .trigger = snd_als300_trigger,
611 .pointer = snd_als300_pointer,
614 static int __devinit snd_als300_new_pcm(struct snd_als300 *chip)
619 snd_als300_dbgcallenter();
620 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);
623 pcm->private_data = chip;
624 strcpy(pcm->name, "ALS300");
628 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
629 &snd_als300_playback_ops);
630 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
631 &snd_als300_capture_ops);
633 /* pre-allocation of buffers */
634 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
635 snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
636 snd_als300_dbgcallleave();
640 static void snd_als300_init(struct snd_als300 *chip)
645 snd_als300_dbgcallenter();
646 spin_lock_irqsave(&chip->reg_lock, flags);
647 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)
650 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);
651 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,
653 & ~WRITE_TRANS_START);
655 /* Enable IRQ output */
656 snd_als300_set_irq_flag(chip, IRQ_ENABLE);
658 /* Unmute hardware devices so their outputs get routed to
659 * the onboard mixer */
660 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
661 snd_als300_gcr_write(chip->port, MISC_CONTROL,
662 tmp | VMUTE_NORMAL | MMUTE_NORMAL);
665 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);
667 /* Make sure playback transfer is stopped */
668 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
669 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,
670 tmp & ~TRANSFER_START);
671 spin_unlock_irqrestore(&chip->reg_lock, flags);
672 snd_als300_dbgcallleave();
675 static int __devinit snd_als300_create(struct snd_card *card,
676 struct pci_dev *pci, int chip_type,
677 struct snd_als300 **rchip)
679 struct snd_als300 *chip;
683 static struct snd_device_ops ops = {
684 .dev_free = snd_als300_dev_free,
688 snd_als300_dbgcallenter();
689 if ((err = pci_enable_device(pci)) < 0)
692 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 ||
693 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) {
694 printk(KERN_ERR "error setting 28bit DMA mask\n");
695 pci_disable_device(pci);
700 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
702 pci_disable_device(pci);
709 chip->chip_type = chip_type;
710 spin_lock_init(&chip->reg_lock);
712 if ((err = pci_request_regions(pci, "ALS300")) < 0) {
714 pci_disable_device(pci);
717 chip->port = pci_resource_start(pci, 0);
719 if (chip->chip_type == DEVICE_ALS300_PLUS)
720 irq_handler = snd_als300plus_interrupt;
722 irq_handler = snd_als300_interrupt;
724 if (request_irq(pci->irq, irq_handler, IRQF_SHARED,
725 card->shortname, chip)) {
726 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
727 snd_als300_free(chip);
730 chip->irq = pci->irq;
733 snd_als300_init(chip);
735 err = snd_als300_ac97(chip);
737 snd_printk(KERN_WARNING "Could not create ac97\n");
738 snd_als300_free(chip);
742 if ((err = snd_als300_new_pcm(chip)) < 0) {
743 snd_printk(KERN_WARNING "Could not create PCM\n");
744 snd_als300_free(chip);
748 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
750 snd_als300_free(chip);
754 snd_card_set_dev(card, &pci->dev);
757 snd_als300_dbgcallleave();
762 static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state)
764 struct snd_card *card = pci_get_drvdata(pci);
765 struct snd_als300 *chip = card->private_data;
767 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
768 snd_pcm_suspend_all(chip->pcm);
769 snd_ac97_suspend(chip->ac97);
771 pci_disable_device(pci);
773 pci_set_power_state(pci, pci_choose_state(pci, state));
777 static int snd_als300_resume(struct pci_dev *pci)
779 struct snd_card *card = pci_get_drvdata(pci);
780 struct snd_als300 *chip = card->private_data;
782 pci_set_power_state(pci, PCI_D0);
783 pci_restore_state(pci);
784 if (pci_enable_device(pci) < 0) {
785 printk(KERN_ERR "als300: pci_enable_device failed, "
786 "disabling device\n");
787 snd_card_disconnect(card);
792 snd_als300_init(chip);
793 snd_ac97_resume(chip->ac97);
795 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
800 static int __devinit snd_als300_probe(struct pci_dev *pci,
801 const struct pci_device_id *pci_id)
804 struct snd_card *card;
805 struct snd_als300 *chip;
808 if (dev >= SNDRV_CARDS)
815 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
820 chip_type = pci_id->driver_data;
822 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) {
826 card->private_data = chip;
828 strcpy(card->driver, "ALS300");
829 if (chip->chip_type == DEVICE_ALS300_PLUS)
830 /* don't know much about ALS300+ yet
831 * print revision number for now */
832 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);
834 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +
836 sprintf(card->longname, "%s at 0x%lx irq %i",
837 card->shortname, chip->port, chip->irq);
839 if ((err = snd_card_register(card)) < 0) {
843 pci_set_drvdata(pci, card);
848 static struct pci_driver driver = {
850 .id_table = snd_als300_ids,
851 .probe = snd_als300_probe,
852 .remove = __devexit_p(snd_als300_remove),
854 .suspend = snd_als300_suspend,
855 .resume = snd_als300_resume,
859 static int __init alsa_card_als300_init(void)
861 return pci_register_driver(&driver);
864 static void __exit alsa_card_als300_exit(void)
866 pci_unregister_driver(&driver);
869 module_init(alsa_card_als300_init)
870 module_exit(alsa_card_als300_exit)