1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#include <asm/io.h>
23#include <linux/delay.h>
24#include <linux/interrupt.h>
25#include <linux/init.h>
26#include <linux/pci.h>
27#include <linux/slab.h>
28#include <linux/moduleparam.h>
29#include <linux/mutex.h>
30#include <sound/core.h>
31#include <sound/pcm.h>
32#include <sound/pcm_params.h>
33#include <sound/info.h>
34#include <sound/ac97_codec.h>
35#include <sound/initval.h>
36
37MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
38MODULE_DESCRIPTION("ATI IXP MC97 controller");
39MODULE_LICENSE("GPL");
40MODULE_SUPPORTED_DEVICE("{{ATI,IXP150/200/250}}");
41
42static int index = -2;
43static char *id = SNDRV_DEFAULT_STR1;
44static int ac97_clock = 48000;
45
46module_param(index, int, 0444);
47MODULE_PARM_DESC(index, "Index value for ATI IXP controller.");
48module_param(id, charp, 0444);
49MODULE_PARM_DESC(id, "ID string for ATI IXP controller.");
50module_param(ac97_clock, int, 0444);
51MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
52
53
54static int enable;
55module_param(enable, bool, 0444);
56
57
58
59
60
61#define ATI_REG_ISR 0x00
62#define ATI_REG_ISR_MODEM_IN_XRUN (1U<<0)
63#define ATI_REG_ISR_MODEM_IN_STATUS (1U<<1)
64#define ATI_REG_ISR_MODEM_OUT1_XRUN (1U<<2)
65#define ATI_REG_ISR_MODEM_OUT1_STATUS (1U<<3)
66#define ATI_REG_ISR_MODEM_OUT2_XRUN (1U<<4)
67#define ATI_REG_ISR_MODEM_OUT2_STATUS (1U<<5)
68#define ATI_REG_ISR_MODEM_OUT3_XRUN (1U<<6)
69#define ATI_REG_ISR_MODEM_OUT3_STATUS (1U<<7)
70#define ATI_REG_ISR_PHYS_INTR (1U<<8)
71#define ATI_REG_ISR_PHYS_MISMATCH (1U<<9)
72#define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10)
73#define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11)
74#define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12)
75#define ATI_REG_ISR_NEW_FRAME (1U<<13)
76#define ATI_REG_ISR_MODEM_GPIO_DATA (1U<<14)
77
78#define ATI_REG_IER 0x04
79#define ATI_REG_IER_MODEM_IN_XRUN_EN (1U<<0)
80#define ATI_REG_IER_MODEM_STATUS_EN (1U<<1)
81#define ATI_REG_IER_MODEM_OUT1_XRUN_EN (1U<<2)
82#define ATI_REG_IER_MODEM_OUT2_XRUN_EN (1U<<4)
83#define ATI_REG_IER_MODEM_OUT3_XRUN_EN (1U<<6)
84#define ATI_REG_IER_PHYS_INTR_EN (1U<<8)
85#define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9)
86#define ATI_REG_IER_CODEC0_INTR_EN (1U<<10)
87#define ATI_REG_IER_CODEC1_INTR_EN (1U<<11)
88#define ATI_REG_IER_CODEC2_INTR_EN (1U<<12)
89#define ATI_REG_IER_NEW_FRAME_EN (1U<<13)
90#define ATI_REG_IER_MODEM_GPIO_DATA_EN (1U<<14)
91#define ATI_REG_IER_MODEM_SET_BUS_BUSY (1U<<15)
92
93#define ATI_REG_CMD 0x08
94#define ATI_REG_CMD_POWERDOWN (1U<<0)
95#define ATI_REG_CMD_MODEM_RECEIVE_EN (1U<<1)
96#define ATI_REG_CMD_MODEM_SEND1_EN (1U<<2)
97#define ATI_REG_CMD_MODEM_SEND2_EN (1U<<3)
98#define ATI_REG_CMD_MODEM_SEND3_EN (1U<<4)
99#define ATI_REG_CMD_MODEM_STATUS_MEM (1U<<5)
100#define ATI_REG_CMD_MODEM_IN_DMA_EN (1U<<8)
101#define ATI_REG_CMD_MODEM_OUT_DMA1_EN (1U<<9)
102#define ATI_REG_CMD_MODEM_OUT_DMA2_EN (1U<<10)
103#define ATI_REG_CMD_MODEM_OUT_DMA3_EN (1U<<11)
104#define ATI_REG_CMD_AUDIO_PRESENT (1U<<20)
105#define ATI_REG_CMD_MODEM_GPIO_THRU_DMA (1U<<22)
106#define ATI_REG_CMD_LOOPBACK_EN (1U<<23)
107#define ATI_REG_CMD_PACKED_DIS (1U<<24)
108#define ATI_REG_CMD_BURST_EN (1U<<25)
109#define ATI_REG_CMD_PANIC_EN (1U<<26)
110#define ATI_REG_CMD_MODEM_PRESENT (1U<<27)
111#define ATI_REG_CMD_ACLINK_ACTIVE (1U<<28)
112#define ATI_REG_CMD_AC_SOFT_RESET (1U<<29)
113#define ATI_REG_CMD_AC_SYNC (1U<<30)
114#define ATI_REG_CMD_AC_RESET (1U<<31)
115
116#define ATI_REG_PHYS_OUT_ADDR 0x0c
117#define ATI_REG_PHYS_OUT_CODEC_MASK (3U<<0)
118#define ATI_REG_PHYS_OUT_RW (1U<<2)
119#define ATI_REG_PHYS_OUT_ADDR_EN (1U<<8)
120#define ATI_REG_PHYS_OUT_ADDR_SHIFT 9
121#define ATI_REG_PHYS_OUT_DATA_SHIFT 16
122
123#define ATI_REG_PHYS_IN_ADDR 0x10
124#define ATI_REG_PHYS_IN_READ_FLAG (1U<<8)
125#define ATI_REG_PHYS_IN_ADDR_SHIFT 9
126#define ATI_REG_PHYS_IN_DATA_SHIFT 16
127
128#define ATI_REG_SLOTREQ 0x14
129
130#define ATI_REG_COUNTER 0x18
131#define ATI_REG_COUNTER_SLOT (3U<<0)
132#define ATI_REG_COUNTER_BITCLOCK (31U<<8)
133
134#define ATI_REG_IN_FIFO_THRESHOLD 0x1c
135
136#define ATI_REG_MODEM_IN_DMA_LINKPTR 0x20
137#define ATI_REG_MODEM_IN_DMA_DT_START 0x24
138#define ATI_REG_MODEM_IN_DMA_DT_NEXT 0x28
139#define ATI_REG_MODEM_IN_DMA_DT_CUR 0x2c
140#define ATI_REG_MODEM_IN_DMA_DT_SIZE 0x30
141#define ATI_REG_MODEM_OUT_FIFO 0x34
142#define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK (0xf<<16)
143#define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT 16
144#define ATI_REG_MODEM_OUT_DMA1_LINKPTR 0x38
145#define ATI_REG_MODEM_OUT_DMA2_LINKPTR 0x3c
146#define ATI_REG_MODEM_OUT_DMA3_LINKPTR 0x40
147#define ATI_REG_MODEM_OUT_DMA1_DT_START 0x44
148#define ATI_REG_MODEM_OUT_DMA1_DT_NEXT 0x48
149#define ATI_REG_MODEM_OUT_DMA1_DT_CUR 0x4c
150#define ATI_REG_MODEM_OUT_DMA2_DT_START 0x50
151#define ATI_REG_MODEM_OUT_DMA2_DT_NEXT 0x54
152#define ATI_REG_MODEM_OUT_DMA2_DT_CUR 0x58
153#define ATI_REG_MODEM_OUT_DMA3_DT_START 0x5c
154#define ATI_REG_MODEM_OUT_DMA3_DT_NEXT 0x60
155#define ATI_REG_MODEM_OUT_DMA3_DT_CUR 0x64
156#define ATI_REG_MODEM_OUT_DMA12_DT_SIZE 0x68
157#define ATI_REG_MODEM_OUT_DMA3_DT_SIZE 0x6c
158#define ATI_REG_MODEM_OUT_FIFO_USED 0x70
159#define ATI_REG_MODEM_OUT_GPIO 0x74
160#define ATI_REG_MODEM_OUT_GPIO_EN 1
161#define ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT 5
162#define ATI_REG_MODEM_IN_GPIO 0x78
163
164#define ATI_REG_MODEM_MIRROR 0x7c
165#define ATI_REG_AUDIO_MIRROR 0x80
166
167#define ATI_REG_MODEM_FIFO_FLUSH 0x88
168#define ATI_REG_MODEM_FIFO_OUT1_FLUSH (1U<<0)
169#define ATI_REG_MODEM_FIFO_OUT2_FLUSH (1U<<1)
170#define ATI_REG_MODEM_FIFO_OUT3_FLUSH (1U<<2)
171#define ATI_REG_MODEM_FIFO_IN_FLUSH (1U<<3)
172
173
174#define ATI_REG_LINKPTR_EN (1U<<0)
175
176#define ATI_MAX_DESCRIPTORS 256
177
178
179struct atiixp_modem;
180
181
182
183
184
185struct atiixp_dma_desc {
186 u32 addr;
187 u16 status;
188 u16 size;
189 u32 next;
190};
191
192
193
194
195enum { ATI_DMA_PLAYBACK, ATI_DMA_CAPTURE, NUM_ATI_DMAS };
196enum { ATI_PCM_OUT, ATI_PCM_IN, NUM_ATI_PCMS };
197enum { ATI_PCMDEV_ANALOG, NUM_ATI_PCMDEVS };
198
199#define NUM_ATI_CODECS 3
200
201
202
203
204
205struct atiixp_dma_ops {
206 int type;
207 unsigned int llp_offset;
208 unsigned int dt_cur;
209
210 void (*enable_dma)(struct atiixp_modem *chip, int on);
211
212 void (*enable_transfer)(struct atiixp_modem *chip, int on);
213
214 void (*flush_dma)(struct atiixp_modem *chip);
215};
216
217
218
219
220struct atiixp_dma {
221 const struct atiixp_dma_ops *ops;
222 struct snd_dma_buffer desc_buf;
223 struct snd_pcm_substream *substream;
224 unsigned int buf_addr, buf_bytes;
225 unsigned int period_bytes, periods;
226 int opened;
227 int running;
228 int pcm_open_flag;
229 int ac97_pcm_type;
230};
231
232
233
234
235struct atiixp_modem {
236 struct snd_card *card;
237 struct pci_dev *pci;
238
239 struct resource *res;
240 unsigned long addr;
241 void __iomem *remap_addr;
242 int irq;
243
244 struct snd_ac97_bus *ac97_bus;
245 struct snd_ac97 *ac97[NUM_ATI_CODECS];
246
247 spinlock_t reg_lock;
248
249 struct atiixp_dma dmas[NUM_ATI_DMAS];
250 struct ac97_pcm *pcms[NUM_ATI_PCMS];
251 struct snd_pcm *pcmdevs[NUM_ATI_PCMDEVS];
252
253 int max_channels;
254
255 unsigned int codec_not_ready_bits;
256
257 int spdif_over_aclink;
258 struct mutex open_mutex;
259};
260
261
262
263
264static struct pci_device_id snd_atiixp_ids[] = {
265 { 0x1002, 0x434d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
266 { 0x1002, 0x4378, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
267 { 0, }
268};
269
270MODULE_DEVICE_TABLE(pci, snd_atiixp_ids);
271
272
273
274
275
276
277
278
279
280
281static int snd_atiixp_update_bits(struct atiixp_modem *chip, unsigned int reg,
282 unsigned int mask, unsigned int value)
283{
284 void __iomem *addr = chip->remap_addr + reg;
285 unsigned int data, old_data;
286 old_data = data = readl(addr);
287 data &= ~mask;
288 data |= value;
289 if (old_data == data)
290 return 0;
291 writel(data, addr);
292 return 1;
293}
294
295
296
297
298#define atiixp_write(chip,reg,value) \
299 writel(value, chip->remap_addr + ATI_REG_##reg)
300#define atiixp_read(chip,reg) \
301 readl(chip->remap_addr + ATI_REG_##reg)
302#define atiixp_update(chip,reg,mask,val) \
303 snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
304
305
306
307
308
309
310
311
312#define ATI_DESC_LIST_SIZE \
313 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc))
314
315
316
317
318
319
320
321
322
323
324static int atiixp_build_dma_packets(struct atiixp_modem *chip,
325 struct atiixp_dma *dma,
326 struct snd_pcm_substream *substream,
327 unsigned int periods,
328 unsigned int period_bytes)
329{
330 unsigned int i;
331 u32 addr, desc_addr;
332 unsigned long flags;
333
334 if (periods > ATI_MAX_DESCRIPTORS)
335 return -ENOMEM;
336
337 if (dma->desc_buf.area == NULL) {
338 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
339 ATI_DESC_LIST_SIZE, &dma->desc_buf) < 0)
340 return -ENOMEM;
341 dma->period_bytes = dma->periods = 0;
342 }
343
344 if (dma->periods == periods && dma->period_bytes == period_bytes)
345 return 0;
346
347
348 spin_lock_irqsave(&chip->reg_lock, flags);
349 writel(0, chip->remap_addr + dma->ops->llp_offset);
350 dma->ops->enable_dma(chip, 0);
351 dma->ops->enable_dma(chip, 1);
352 spin_unlock_irqrestore(&chip->reg_lock, flags);
353
354
355 addr = (u32)substream->runtime->dma_addr;
356 desc_addr = (u32)dma->desc_buf.addr;
357 for (i = 0; i < periods; i++) {
358 struct atiixp_dma_desc *desc;
359 desc = &((struct atiixp_dma_desc *)dma->desc_buf.area)[i];
360 desc->addr = cpu_to_le32(addr);
361 desc->status = 0;
362 desc->size = period_bytes >> 2;
363 desc_addr += sizeof(struct atiixp_dma_desc);
364 if (i == periods - 1)
365 desc->next = cpu_to_le32((u32)dma->desc_buf.addr);
366 else
367 desc->next = cpu_to_le32(desc_addr);
368 addr += period_bytes;
369 }
370
371 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
372 chip->remap_addr + dma->ops->llp_offset);
373
374 dma->period_bytes = period_bytes;
375 dma->periods = periods;
376
377 return 0;
378}
379
380
381
382
383static void atiixp_clear_dma_packets(struct atiixp_modem *chip,
384 struct atiixp_dma *dma,
385 struct snd_pcm_substream *substream)
386{
387 if (dma->desc_buf.area) {
388 writel(0, chip->remap_addr + dma->ops->llp_offset);
389 snd_dma_free_pages(&dma->desc_buf);
390 dma->desc_buf.area = NULL;
391 }
392}
393
394
395
396
397static int snd_atiixp_acquire_codec(struct atiixp_modem *chip)
398{
399 int timeout = 1000;
400
401 while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) {
402 if (! timeout--) {
403 snd_printk(KERN_WARNING "atiixp-modem: codec acquire timeout\n");
404 return -EBUSY;
405 }
406 udelay(1);
407 }
408 return 0;
409}
410
411static unsigned short snd_atiixp_codec_read(struct atiixp_modem *chip,
412 unsigned short codec,
413 unsigned short reg)
414{
415 unsigned int data;
416 int timeout;
417
418 if (snd_atiixp_acquire_codec(chip) < 0)
419 return 0xffff;
420 data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
421 ATI_REG_PHYS_OUT_ADDR_EN |
422 ATI_REG_PHYS_OUT_RW |
423 codec;
424 atiixp_write(chip, PHYS_OUT_ADDR, data);
425 if (snd_atiixp_acquire_codec(chip) < 0)
426 return 0xffff;
427 timeout = 1000;
428 do {
429 data = atiixp_read(chip, PHYS_IN_ADDR);
430 if (data & ATI_REG_PHYS_IN_READ_FLAG)
431 return data >> ATI_REG_PHYS_IN_DATA_SHIFT;
432 udelay(1);
433 } while (--timeout);
434
435 if (reg < 0x7c)
436 snd_printk(KERN_WARNING "atiixp-modem: codec read timeout (reg %x)\n", reg);
437 return 0xffff;
438}
439
440
441static void snd_atiixp_codec_write(struct atiixp_modem *chip,
442 unsigned short codec,
443 unsigned short reg, unsigned short val)
444{
445 unsigned int data;
446
447 if (snd_atiixp_acquire_codec(chip) < 0)
448 return;
449 data = ((unsigned int)val << ATI_REG_PHYS_OUT_DATA_SHIFT) |
450 ((unsigned int)reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
451 ATI_REG_PHYS_OUT_ADDR_EN | codec;
452 atiixp_write(chip, PHYS_OUT_ADDR, data);
453}
454
455
456static unsigned short snd_atiixp_ac97_read(struct snd_ac97 *ac97,
457 unsigned short reg)
458{
459 struct atiixp_modem *chip = ac97->private_data;
460 return snd_atiixp_codec_read(chip, ac97->num, reg);
461
462}
463
464static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
465 unsigned short val)
466{
467 struct atiixp_modem *chip = ac97->private_data;
468 if (reg == AC97_GPIO_STATUS) {
469 atiixp_write(chip, MODEM_OUT_GPIO,
470 (val << ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT) | ATI_REG_MODEM_OUT_GPIO_EN);
471 return;
472 }
473 snd_atiixp_codec_write(chip, ac97->num, reg, val);
474}
475
476
477
478
479static int snd_atiixp_aclink_reset(struct atiixp_modem *chip)
480{
481 int timeout;
482
483
484 if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0))
485 udelay(10);
486
487
488 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET);
489 atiixp_read(chip, CMD);
490 udelay(10);
491 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0);
492
493 timeout = 10;
494 while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) {
495
496 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
497 ATI_REG_CMD_AC_SYNC);
498 atiixp_read(chip, CMD);
499 msleep(1);
500 atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET);
501 if (--timeout) {
502 snd_printk(KERN_ERR "atiixp-modem: codec reset timeout\n");
503 break;
504 }
505 }
506
507
508 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
509 ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET);
510
511 return 0;
512}
513
514#ifdef CONFIG_PM
515static int snd_atiixp_aclink_down(struct atiixp_modem *chip)
516{
517
518
519 atiixp_update(chip, CMD,
520 ATI_REG_CMD_POWERDOWN | ATI_REG_CMD_AC_RESET,
521 ATI_REG_CMD_POWERDOWN);
522 return 0;
523}
524#endif
525
526
527
528
529
530
531
532
533
534#define ALL_CODEC_NOT_READY \
535 (ATI_REG_ISR_CODEC0_NOT_READY |\
536 ATI_REG_ISR_CODEC1_NOT_READY |\
537 ATI_REG_ISR_CODEC2_NOT_READY)
538#define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
539
540static int snd_atiixp_codec_detect(struct atiixp_modem *chip)
541{
542 int timeout;
543
544 chip->codec_not_ready_bits = 0;
545 atiixp_write(chip, IER, CODEC_CHECK_BITS);
546
547 timeout = 50;
548 while (timeout-- > 0) {
549 msleep(1);
550 if (chip->codec_not_ready_bits)
551 break;
552 }
553 atiixp_write(chip, IER, 0);
554
555 if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
556 snd_printk(KERN_ERR "atiixp-modem: no codec detected!\n");
557 return -ENXIO;
558 }
559 return 0;
560}
561
562
563
564
565
566static int snd_atiixp_chip_start(struct atiixp_modem *chip)
567{
568 unsigned int reg;
569
570
571 reg = atiixp_read(chip, CMD);
572 reg |= ATI_REG_CMD_BURST_EN;
573 if(!(reg & ATI_REG_CMD_MODEM_PRESENT))
574 reg |= ATI_REG_CMD_MODEM_PRESENT;
575 atiixp_write(chip, CMD, reg);
576
577
578 atiixp_write(chip, ISR, 0xffffffff);
579
580 atiixp_write(chip, IER,
581 ATI_REG_IER_MODEM_STATUS_EN |
582 ATI_REG_IER_MODEM_IN_XRUN_EN |
583 ATI_REG_IER_MODEM_OUT1_XRUN_EN);
584 return 0;
585}
586
587
588
589
590
591static int snd_atiixp_chip_stop(struct atiixp_modem *chip)
592{
593
594 atiixp_write(chip, ISR, atiixp_read(chip, ISR));
595
596 atiixp_write(chip, IER, 0);
597 return 0;
598}
599
600
601
602
603
604
605
606
607
608
609
610static snd_pcm_uframes_t snd_atiixp_pcm_pointer(struct snd_pcm_substream *substream)
611{
612 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
613 struct snd_pcm_runtime *runtime = substream->runtime;
614 struct atiixp_dma *dma = runtime->private_data;
615 unsigned int curptr;
616 int timeout = 1000;
617
618 while (timeout--) {
619 curptr = readl(chip->remap_addr + dma->ops->dt_cur);
620 if (curptr < dma->buf_addr)
621 continue;
622 curptr -= dma->buf_addr;
623 if (curptr >= dma->buf_bytes)
624 continue;
625 return bytes_to_frames(runtime, curptr);
626 }
627 snd_printd("atiixp-modem: invalid DMA pointer read 0x%x (buf=%x)\n",
628 readl(chip->remap_addr + dma->ops->dt_cur), dma->buf_addr);
629 return 0;
630}
631
632
633
634
635static void snd_atiixp_xrun_dma(struct atiixp_modem *chip,
636 struct atiixp_dma *dma)
637{
638 if (! dma->substream || ! dma->running)
639 return;
640 snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type);
641 snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
642}
643
644
645
646
647static void snd_atiixp_update_dma(struct atiixp_modem *chip,
648 struct atiixp_dma *dma)
649{
650 if (! dma->substream || ! dma->running)
651 return;
652 snd_pcm_period_elapsed(dma->substream);
653}
654
655
656
657static void snd_atiixp_check_bus_busy(struct atiixp_modem *chip)
658{
659 unsigned int bus_busy;
660 if (atiixp_read(chip, CMD) & (ATI_REG_CMD_MODEM_SEND1_EN |
661 ATI_REG_CMD_MODEM_RECEIVE_EN))
662 bus_busy = ATI_REG_IER_MODEM_SET_BUS_BUSY;
663 else
664 bus_busy = 0;
665 atiixp_update(chip, IER, ATI_REG_IER_MODEM_SET_BUS_BUSY, bus_busy);
666}
667
668
669
670
671static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
672{
673 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
674 struct atiixp_dma *dma = substream->runtime->private_data;
675 int err = 0;
676
677 snd_assert(dma->ops->enable_transfer && dma->ops->flush_dma, return -EINVAL);
678
679 spin_lock(&chip->reg_lock);
680 switch(cmd) {
681 case SNDRV_PCM_TRIGGER_START:
682 dma->ops->enable_transfer(chip, 1);
683 dma->running = 1;
684 break;
685 case SNDRV_PCM_TRIGGER_STOP:
686 dma->ops->enable_transfer(chip, 0);
687 dma->running = 0;
688 break;
689 default:
690 err = -EINVAL;
691 break;
692 }
693 if (! err) {
694 snd_atiixp_check_bus_busy(chip);
695 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
696 dma->ops->flush_dma(chip);
697 snd_atiixp_check_bus_busy(chip);
698 }
699 }
700 spin_unlock(&chip->reg_lock);
701 return err;
702}
703
704
705
706
707
708
709
710
711
712static void atiixp_out_flush_dma(struct atiixp_modem *chip)
713{
714 atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_OUT1_FLUSH);
715}
716
717
718static void atiixp_out_enable_dma(struct atiixp_modem *chip, int on)
719{
720 unsigned int data;
721 data = atiixp_read(chip, CMD);
722 if (on) {
723 if (data & ATI_REG_CMD_MODEM_OUT_DMA1_EN)
724 return;
725 atiixp_out_flush_dma(chip);
726 data |= ATI_REG_CMD_MODEM_OUT_DMA1_EN;
727 } else
728 data &= ~ATI_REG_CMD_MODEM_OUT_DMA1_EN;
729 atiixp_write(chip, CMD, data);
730}
731
732
733static void atiixp_out_enable_transfer(struct atiixp_modem *chip, int on)
734{
735 atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_SEND1_EN,
736 on ? ATI_REG_CMD_MODEM_SEND1_EN : 0);
737}
738
739
740static void atiixp_in_enable_dma(struct atiixp_modem *chip, int on)
741{
742 atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_IN_DMA_EN,
743 on ? ATI_REG_CMD_MODEM_IN_DMA_EN : 0);
744}
745
746
747static void atiixp_in_enable_transfer(struct atiixp_modem *chip, int on)
748{
749 if (on) {
750 unsigned int data = atiixp_read(chip, CMD);
751 if (! (data & ATI_REG_CMD_MODEM_RECEIVE_EN)) {
752 data |= ATI_REG_CMD_MODEM_RECEIVE_EN;
753 atiixp_write(chip, CMD, data);
754 }
755 } else
756 atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_RECEIVE_EN, 0);
757}
758
759
760static void atiixp_in_flush_dma(struct atiixp_modem *chip)
761{
762 atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_IN_FLUSH);
763}
764
765
766static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream)
767{
768 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
769 unsigned int data;
770
771 spin_lock_irq(&chip->reg_lock);
772
773 data = atiixp_read(chip, MODEM_OUT_FIFO);
774 data &= ~ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK;
775 data |= 0x04 << ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT;
776 atiixp_write(chip, MODEM_OUT_FIFO, data);
777 spin_unlock_irq(&chip->reg_lock);
778 return 0;
779}
780
781
782static int snd_atiixp_capture_prepare(struct snd_pcm_substream *substream)
783{
784 return 0;
785}
786
787
788
789
790static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream *substream,
791 struct snd_pcm_hw_params *hw_params)
792{
793 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
794 struct atiixp_dma *dma = substream->runtime->private_data;
795 int err;
796 int i;
797
798 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
799 if (err < 0)
800 return err;
801 dma->buf_addr = substream->runtime->dma_addr;
802 dma->buf_bytes = params_buffer_bytes(hw_params);
803
804 err = atiixp_build_dma_packets(chip, dma, substream,
805 params_periods(hw_params),
806 params_period_bytes(hw_params));
807 if (err < 0)
808 return err;
809
810
811 for (i = 0; i < NUM_ATI_CODECS; i++) {
812 if (! chip->ac97[i])
813 continue;
814 snd_ac97_write(chip->ac97[i], AC97_LINE1_RATE, params_rate(hw_params));
815 snd_ac97_write(chip->ac97[i], AC97_LINE1_LEVEL, 0);
816 }
817
818 return err;
819}
820
821static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
822{
823 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
824 struct atiixp_dma *dma = substream->runtime->private_data;
825
826 atiixp_clear_dma_packets(chip, dma, substream);
827 snd_pcm_lib_free_pages(substream);
828 return 0;
829}
830
831
832
833
834
835static struct snd_pcm_hardware snd_atiixp_pcm_hw =
836{
837 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
838 SNDRV_PCM_INFO_BLOCK_TRANSFER |
839 SNDRV_PCM_INFO_MMAP_VALID),
840 .formats = SNDRV_PCM_FMTBIT_S16_LE,
841 .rates = (SNDRV_PCM_RATE_8000 |
842 SNDRV_PCM_RATE_16000 |
843 SNDRV_PCM_RATE_KNOT),
844 .rate_min = 8000,
845 .rate_max = 16000,
846 .channels_min = 2,
847 .channels_max = 2,
848 .buffer_bytes_max = 256 * 1024,
849 .period_bytes_min = 32,
850 .period_bytes_max = 128 * 1024,
851 .periods_min = 2,
852 .periods_max = ATI_MAX_DESCRIPTORS,
853};
854
855static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
856 struct atiixp_dma *dma, int pcm_type)
857{
858 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
859 struct snd_pcm_runtime *runtime = substream->runtime;
860 int err;
861 static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
862 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
863 .count = ARRAY_SIZE(rates),
864 .list = rates,
865 .mask = 0,
866 };
867
868 snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
869
870 if (dma->opened)
871 return -EBUSY;
872 dma->substream = substream;
873 runtime->hw = snd_atiixp_pcm_hw;
874 dma->ac97_pcm_type = pcm_type;
875 if ((err = snd_pcm_hw_constraint_list(runtime, 0,
876 SNDRV_PCM_HW_PARAM_RATE,
877 &hw_constraints_rates)) < 0)
878 return err;
879 if ((err = snd_pcm_hw_constraint_integer(runtime,
880 SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
881 return err;
882 runtime->private_data = dma;
883
884
885 spin_lock_irq(&chip->reg_lock);
886 dma->ops->enable_dma(chip, 1);
887 spin_unlock_irq(&chip->reg_lock);
888 dma->opened = 1;
889
890 return 0;
891}
892
893static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
894 struct atiixp_dma *dma)
895{
896 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
897
898 snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
899 spin_lock_irq(&chip->reg_lock);
900 dma->ops->enable_dma(chip, 0);
901 spin_unlock_irq(&chip->reg_lock);
902 dma->substream = NULL;
903 dma->opened = 0;
904 return 0;
905}
906
907
908
909static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
910{
911 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
912 int err;
913
914 mutex_lock(&chip->open_mutex);
915 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);
916 mutex_unlock(&chip->open_mutex);
917 if (err < 0)
918 return err;
919 return 0;
920}
921
922static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
923{
924 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
925 int err;
926 mutex_lock(&chip->open_mutex);
927 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
928 mutex_unlock(&chip->open_mutex);
929 return err;
930}
931
932static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
933{
934 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
935 return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
936}
937
938static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
939{
940 struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
941 return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
942}
943
944
945
946static struct snd_pcm_ops snd_atiixp_playback_ops = {
947 .open = snd_atiixp_playback_open,
948 .close = snd_atiixp_playback_close,
949 .ioctl = snd_pcm_lib_ioctl,
950 .hw_params = snd_atiixp_pcm_hw_params,
951 .hw_free = snd_atiixp_pcm_hw_free,
952 .prepare = snd_atiixp_playback_prepare,
953 .trigger = snd_atiixp_pcm_trigger,
954 .pointer = snd_atiixp_pcm_pointer,
955};
956
957
958static struct snd_pcm_ops snd_atiixp_capture_ops = {
959 .open = snd_atiixp_capture_open,
960 .close = snd_atiixp_capture_close,
961 .ioctl = snd_pcm_lib_ioctl,
962 .hw_params = snd_atiixp_pcm_hw_params,
963 .hw_free = snd_atiixp_pcm_hw_free,
964 .prepare = snd_atiixp_capture_prepare,
965 .trigger = snd_atiixp_pcm_trigger,
966 .pointer = snd_atiixp_pcm_pointer,
967};
968
969static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
970 .type = ATI_DMA_PLAYBACK,
971 .llp_offset = ATI_REG_MODEM_OUT_DMA1_LINKPTR,
972 .dt_cur = ATI_REG_MODEM_OUT_DMA1_DT_CUR,
973 .enable_dma = atiixp_out_enable_dma,
974 .enable_transfer = atiixp_out_enable_transfer,
975 .flush_dma = atiixp_out_flush_dma,
976};
977
978static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
979 .type = ATI_DMA_CAPTURE,
980 .llp_offset = ATI_REG_MODEM_IN_DMA_LINKPTR,
981 .dt_cur = ATI_REG_MODEM_IN_DMA_DT_CUR,
982 .enable_dma = atiixp_in_enable_dma,
983 .enable_transfer = atiixp_in_enable_transfer,
984 .flush_dma = atiixp_in_flush_dma,
985};
986
987static int __devinit snd_atiixp_pcm_new(struct atiixp_modem *chip)
988{
989 struct snd_pcm *pcm;
990 int err;
991
992
993 chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;
994 chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;
995
996
997 err = snd_pcm_new(chip->card, "ATI IXP MC97", ATI_PCMDEV_ANALOG, 1, 1, &pcm);
998 if (err < 0)
999 return err;
1000 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
1001 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
1002 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
1003 pcm->private_data = chip;
1004 strcpy(pcm->name, "ATI IXP MC97");
1005 chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;
1006
1007 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1008 snd_dma_pci_data(chip->pci),
1009 64*1024, 128*1024);
1010
1011 return 0;
1012}
1013
1014
1015
1016
1017
1018
1019static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
1020{
1021 struct atiixp_modem *chip = dev_id;
1022 unsigned int status;
1023
1024 status = atiixp_read(chip, ISR);
1025
1026 if (! status)
1027 return IRQ_NONE;
1028
1029
1030 if (status & ATI_REG_ISR_MODEM_OUT1_XRUN)
1031 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1032 else if (status & ATI_REG_ISR_MODEM_OUT1_STATUS)
1033 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1034 if (status & ATI_REG_ISR_MODEM_IN_XRUN)
1035 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1036 else if (status & ATI_REG_ISR_MODEM_IN_STATUS)
1037 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1038
1039
1040 if (status & CODEC_CHECK_BITS) {
1041 unsigned int detected;
1042 detected = status & CODEC_CHECK_BITS;
1043 spin_lock(&chip->reg_lock);
1044 chip->codec_not_ready_bits |= detected;
1045 atiixp_update(chip, IER, detected, 0);
1046 spin_unlock(&chip->reg_lock);
1047 }
1048
1049
1050 atiixp_write(chip, ISR, status);
1051
1052 return IRQ_HANDLED;
1053}
1054
1055
1056
1057
1058
1059
1060static int __devinit snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)
1061{
1062 struct snd_ac97_bus *pbus;
1063 struct snd_ac97_template ac97;
1064 int i, err;
1065 int codec_count;
1066 static struct snd_ac97_bus_ops ops = {
1067 .write = snd_atiixp_ac97_write,
1068 .read = snd_atiixp_ac97_read,
1069 };
1070 static unsigned int codec_skip[NUM_ATI_CODECS] = {
1071 ATI_REG_ISR_CODEC0_NOT_READY,
1072 ATI_REG_ISR_CODEC1_NOT_READY,
1073 ATI_REG_ISR_CODEC2_NOT_READY,
1074 };
1075
1076 if (snd_atiixp_codec_detect(chip) < 0)
1077 return -ENXIO;
1078
1079 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
1080 return err;
1081 pbus->clock = clock;
1082 chip->ac97_bus = pbus;
1083
1084 codec_count = 0;
1085 for (i = 0; i < NUM_ATI_CODECS; i++) {
1086 if (chip->codec_not_ready_bits & codec_skip[i])
1087 continue;
1088 memset(&ac97, 0, sizeof(ac97));
1089 ac97.private_data = chip;
1090 ac97.pci = chip->pci;
1091 ac97.num = i;
1092 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
1093 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
1094 chip->ac97[i] = NULL;
1095 snd_printdd("atiixp-modem: codec %d not available for modem\n", i);
1096 continue;
1097 }
1098 codec_count++;
1099 }
1100
1101 if (! codec_count) {
1102 snd_printk(KERN_ERR "atiixp-modem: no codec available\n");
1103 return -ENODEV;
1104 }
1105
1106
1107
1108 return 0;
1109}
1110
1111
1112#ifdef CONFIG_PM
1113
1114
1115
1116static int snd_atiixp_suspend(struct pci_dev *pci, pm_message_t state)
1117{
1118 struct snd_card *card = pci_get_drvdata(pci);
1119 struct atiixp_modem *chip = card->private_data;
1120 int i;
1121
1122 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1123 for (i = 0; i < NUM_ATI_PCMDEVS; i++)
1124 snd_pcm_suspend_all(chip->pcmdevs[i]);
1125 for (i = 0; i < NUM_ATI_CODECS; i++)
1126 snd_ac97_suspend(chip->ac97[i]);
1127 snd_atiixp_aclink_down(chip);
1128 snd_atiixp_chip_stop(chip);
1129
1130 pci_disable_device(pci);
1131 pci_save_state(pci);
1132 pci_set_power_state(pci, pci_choose_state(pci, state));
1133 return 0;
1134}
1135
1136static int snd_atiixp_resume(struct pci_dev *pci)
1137{
1138 struct snd_card *card = pci_get_drvdata(pci);
1139 struct atiixp_modem *chip = card->private_data;
1140 int i;
1141
1142 pci_set_power_state(pci, PCI_D0);
1143 pci_restore_state(pci);
1144 if (pci_enable_device(pci) < 0) {
1145 printk(KERN_ERR "atiixp-modem: pci_enable_device failed, "
1146 "disabling device\n");
1147 snd_card_disconnect(card);
1148 return -EIO;
1149 }
1150 pci_set_master(pci);
1151
1152 snd_atiixp_aclink_reset(chip);
1153 snd_atiixp_chip_start(chip);
1154
1155 for (i = 0; i < NUM_ATI_CODECS; i++)
1156 snd_ac97_resume(chip->ac97[i]);
1157
1158 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1159 return 0;
1160}
1161#endif
1162
1163
1164#ifdef CONFIG_PROC_FS
1165
1166
1167
1168
1169static void snd_atiixp_proc_read(struct snd_info_entry *entry,
1170 struct snd_info_buffer *buffer)
1171{
1172 struct atiixp_modem *chip = entry->private_data;
1173 int i;
1174
1175 for (i = 0; i < 256; i += 4)
1176 snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
1177}
1178
1179static void __devinit snd_atiixp_proc_init(struct atiixp_modem *chip)
1180{
1181 struct snd_info_entry *entry;
1182
1183 if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry))
1184 snd_info_set_text_ops(entry, chip, snd_atiixp_proc_read);
1185}
1186#else
1187#define snd_atiixp_proc_init(chip)
1188#endif
1189
1190
1191
1192
1193
1194
1195static int snd_atiixp_free(struct atiixp_modem *chip)
1196{
1197 if (chip->irq < 0)
1198 goto __hw_end;
1199 snd_atiixp_chip_stop(chip);
1200
1201 __hw_end:
1202 if (chip->irq >= 0)
1203 free_irq(chip->irq, chip);
1204 if (chip->remap_addr)
1205 iounmap(chip->remap_addr);
1206 pci_release_regions(chip->pci);
1207 pci_disable_device(chip->pci);
1208 kfree(chip);
1209 return 0;
1210}
1211
1212static int snd_atiixp_dev_free(struct snd_device *device)
1213{
1214 struct atiixp_modem *chip = device->device_data;
1215 return snd_atiixp_free(chip);
1216}
1217
1218
1219
1220
1221static int __devinit snd_atiixp_create(struct snd_card *card,
1222 struct pci_dev *pci,
1223 struct atiixp_modem **r_chip)
1224{
1225 static struct snd_device_ops ops = {
1226 .dev_free = snd_atiixp_dev_free,
1227 };
1228 struct atiixp_modem *chip;
1229 int err;
1230
1231 if ((err = pci_enable_device(pci)) < 0)
1232 return err;
1233
1234 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1235 if (chip == NULL) {
1236 pci_disable_device(pci);
1237 return -ENOMEM;
1238 }
1239
1240 spin_lock_init(&chip->reg_lock);
1241 mutex_init(&chip->open_mutex);
1242 chip->card = card;
1243 chip->pci = pci;
1244 chip->irq = -1;
1245 if ((err = pci_request_regions(pci, "ATI IXP MC97")) < 0) {
1246 kfree(chip);
1247 pci_disable_device(pci);
1248 return err;
1249 }
1250 chip->addr = pci_resource_start(pci, 0);
1251 chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci, 0));
1252 if (chip->remap_addr == NULL) {
1253 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
1254 snd_atiixp_free(chip);
1255 return -EIO;
1256 }
1257
1258 if (request_irq(pci->irq, snd_atiixp_interrupt, IRQF_SHARED,
1259 card->shortname, chip)) {
1260 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1261 snd_atiixp_free(chip);
1262 return -EBUSY;
1263 }
1264 chip->irq = pci->irq;
1265 pci_set_master(pci);
1266 synchronize_irq(chip->irq);
1267
1268 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1269 snd_atiixp_free(chip);
1270 return err;
1271 }
1272
1273 snd_card_set_dev(card, &pci->dev);
1274
1275 *r_chip = chip;
1276 return 0;
1277}
1278
1279
1280static int __devinit snd_atiixp_probe(struct pci_dev *pci,
1281 const struct pci_device_id *pci_id)
1282{
1283 struct snd_card *card;
1284 struct atiixp_modem *chip;
1285 int err;
1286
1287 card = snd_card_new(index, id, THIS_MODULE, 0);
1288 if (card == NULL)
1289 return -ENOMEM;
1290
1291 strcpy(card->driver, "ATIIXP-MODEM");
1292 strcpy(card->shortname, "ATI IXP Modem");
1293 if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
1294 goto __error;
1295 card->private_data = chip;
1296
1297 if ((err = snd_atiixp_aclink_reset(chip)) < 0)
1298 goto __error;
1299
1300 if ((err = snd_atiixp_mixer_new(chip, ac97_clock)) < 0)
1301 goto __error;
1302
1303 if ((err = snd_atiixp_pcm_new(chip)) < 0)
1304 goto __error;
1305
1306 snd_atiixp_proc_init(chip);
1307
1308 snd_atiixp_chip_start(chip);
1309
1310 sprintf(card->longname, "%s rev %x at 0x%lx, irq %i",
1311 card->shortname, pci->revision, chip->addr, chip->irq);
1312
1313 if ((err = snd_card_register(card)) < 0)
1314 goto __error;
1315
1316 pci_set_drvdata(pci, card);
1317 return 0;
1318
1319 __error:
1320 snd_card_free(card);
1321 return err;
1322}
1323
1324static void __devexit snd_atiixp_remove(struct pci_dev *pci)
1325{
1326 snd_card_free(pci_get_drvdata(pci));
1327 pci_set_drvdata(pci, NULL);
1328}
1329
1330static struct pci_driver driver = {
1331 .name = "ATI IXP MC97 controller",
1332 .id_table = snd_atiixp_ids,
1333 .probe = snd_atiixp_probe,
1334 .remove = __devexit_p(snd_atiixp_remove),
1335#ifdef CONFIG_PM
1336 .suspend = snd_atiixp_suspend,
1337 .resume = snd_atiixp_resume,
1338#endif
1339};
1340
1341
1342static int __init alsa_card_atiixp_init(void)
1343{
1344 return pci_register_driver(&driver);
1345}
1346
1347static void __exit alsa_card_atiixp_exit(void)
1348{
1349 pci_unregister_driver(&driver);
1350}
1351
1352module_init(alsa_card_atiixp_init)
1353module_exit(alsa_card_atiixp_exit)
1354