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
)