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7
8#include <linux/io.h>
9#include <linux/delay.h>
10#include <linux/interrupt.h>
11#include <linux/init.h>
12#include <linux/pci.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/mutex.h>
16#include <sound/core.h>
17#include <sound/pcm.h>
18#include <sound/pcm_params.h>
19#include <sound/info.h>
20#include <sound/ac97_codec.h>
21#include <sound/initval.h>
22
23MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
24MODULE_DESCRIPTION("ATI IXP AC97 controller");
25MODULE_LICENSE("GPL");
26
27static int index = SNDRV_DEFAULT_IDX1;
28static char *id = SNDRV_DEFAULT_STR1;
29static int ac97_clock = 48000;
30static char *ac97_quirk;
31static bool spdif_aclink = 1;
32static int ac97_codec = -1;
33
34module_param(index, int, 0444);
35MODULE_PARM_DESC(index, "Index value for ATI IXP controller.");
36module_param(id, charp, 0444);
37MODULE_PARM_DESC(id, "ID string for ATI IXP controller.");
38module_param(ac97_clock, int, 0444);
39MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
40module_param(ac97_quirk, charp, 0444);
41MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
42module_param(ac97_codec, int, 0444);
43MODULE_PARM_DESC(ac97_codec, "Specify codec instead of probing.");
44module_param(spdif_aclink, bool, 0444);
45MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
46
47
48static bool enable;
49module_param(enable, bool, 0444);
50
51
52
53
54
55#define ATI_REG_ISR 0x00
56#define ATI_REG_ISR_IN_XRUN (1U<<0)
57#define ATI_REG_ISR_IN_STATUS (1U<<1)
58#define ATI_REG_ISR_OUT_XRUN (1U<<2)
59#define ATI_REG_ISR_OUT_STATUS (1U<<3)
60#define ATI_REG_ISR_SPDF_XRUN (1U<<4)
61#define ATI_REG_ISR_SPDF_STATUS (1U<<5)
62#define ATI_REG_ISR_PHYS_INTR (1U<<8)
63#define ATI_REG_ISR_PHYS_MISMATCH (1U<<9)
64#define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10)
65#define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11)
66#define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12)
67#define ATI_REG_ISR_NEW_FRAME (1U<<13)
68
69#define ATI_REG_IER 0x04
70#define ATI_REG_IER_IN_XRUN_EN (1U<<0)
71#define ATI_REG_IER_IO_STATUS_EN (1U<<1)
72#define ATI_REG_IER_OUT_XRUN_EN (1U<<2)
73#define ATI_REG_IER_OUT_XRUN_COND (1U<<3)
74#define ATI_REG_IER_SPDF_XRUN_EN (1U<<4)
75#define ATI_REG_IER_SPDF_STATUS_EN (1U<<5)
76#define ATI_REG_IER_PHYS_INTR_EN (1U<<8)
77#define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9)
78#define ATI_REG_IER_CODEC0_INTR_EN (1U<<10)
79#define ATI_REG_IER_CODEC1_INTR_EN (1U<<11)
80#define ATI_REG_IER_CODEC2_INTR_EN (1U<<12)
81#define ATI_REG_IER_NEW_FRAME_EN (1U<<13)
82#define ATI_REG_IER_SET_BUS_BUSY (1U<<14)
83
84#define ATI_REG_CMD 0x08
85#define ATI_REG_CMD_POWERDOWN (1U<<0)
86#define ATI_REG_CMD_RECEIVE_EN (1U<<1)
87#define ATI_REG_CMD_SEND_EN (1U<<2)
88#define ATI_REG_CMD_STATUS_MEM (1U<<3)
89#define ATI_REG_CMD_SPDF_OUT_EN (1U<<4)
90#define ATI_REG_CMD_SPDF_STATUS_MEM (1U<<5)
91#define ATI_REG_CMD_SPDF_THRESHOLD (3U<<6)
92#define ATI_REG_CMD_SPDF_THRESHOLD_SHIFT 6
93#define ATI_REG_CMD_IN_DMA_EN (1U<<8)
94#define ATI_REG_CMD_OUT_DMA_EN (1U<<9)
95#define ATI_REG_CMD_SPDF_DMA_EN (1U<<10)
96#define ATI_REG_CMD_SPDF_OUT_STOPPED (1U<<11)
97#define ATI_REG_CMD_SPDF_CONFIG_MASK (7U<<12)
98#define ATI_REG_CMD_SPDF_CONFIG_34 (1U<<12)
99#define ATI_REG_CMD_SPDF_CONFIG_78 (2U<<12)
100#define ATI_REG_CMD_SPDF_CONFIG_69 (3U<<12)
101#define ATI_REG_CMD_SPDF_CONFIG_01 (4U<<12)
102#define ATI_REG_CMD_INTERLEAVE_SPDF (1U<<16)
103#define ATI_REG_CMD_AUDIO_PRESENT (1U<<20)
104#define ATI_REG_CMD_INTERLEAVE_IN (1U<<21)
105#define ATI_REG_CMD_INTERLEAVE_OUT (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_IN_DMA_LINKPTR 0x20
137#define ATI_REG_IN_DMA_DT_START 0x24
138#define ATI_REG_IN_DMA_DT_NEXT 0x28
139#define ATI_REG_IN_DMA_DT_CUR 0x2c
140#define ATI_REG_IN_DMA_DT_SIZE 0x30
141
142#define ATI_REG_OUT_DMA_SLOT 0x34
143#define ATI_REG_OUT_DMA_SLOT_BIT(x) (1U << ((x) - 3))
144#define ATI_REG_OUT_DMA_SLOT_MASK 0x1ff
145#define ATI_REG_OUT_DMA_THRESHOLD_MASK 0xf800
146#define ATI_REG_OUT_DMA_THRESHOLD_SHIFT 11
147
148#define ATI_REG_OUT_DMA_LINKPTR 0x38
149#define ATI_REG_OUT_DMA_DT_START 0x3c
150#define ATI_REG_OUT_DMA_DT_NEXT 0x40
151#define ATI_REG_OUT_DMA_DT_CUR 0x44
152#define ATI_REG_OUT_DMA_DT_SIZE 0x48
153
154#define ATI_REG_SPDF_CMD 0x4c
155#define ATI_REG_SPDF_CMD_LFSR (1U<<4)
156#define ATI_REG_SPDF_CMD_SINGLE_CH (1U<<5)
157#define ATI_REG_SPDF_CMD_LFSR_ACC (0xff<<8)
158
159#define ATI_REG_SPDF_DMA_LINKPTR 0x50
160#define ATI_REG_SPDF_DMA_DT_START 0x54
161#define ATI_REG_SPDF_DMA_DT_NEXT 0x58
162#define ATI_REG_SPDF_DMA_DT_CUR 0x5c
163#define ATI_REG_SPDF_DMA_DT_SIZE 0x60
164
165#define ATI_REG_MODEM_MIRROR 0x7c
166#define ATI_REG_AUDIO_MIRROR 0x80
167
168#define ATI_REG_6CH_REORDER 0x84
169#define ATI_REG_6CH_REORDER_EN (1U<<0)
170
171#define ATI_REG_FIFO_FLUSH 0x88
172#define ATI_REG_FIFO_OUT_FLUSH (1U<<0)
173#define ATI_REG_FIFO_IN_FLUSH (1U<<1)
174
175
176#define ATI_REG_LINKPTR_EN (1U<<0)
177
178
179#define ATI_REG_DMA_DT_SIZE (0xffffU<<0)
180#define ATI_REG_DMA_FIFO_USED (0x1fU<<16)
181#define ATI_REG_DMA_FIFO_FREE (0x1fU<<21)
182#define ATI_REG_DMA_STATE (7U<<26)
183
184
185#define ATI_MAX_DESCRIPTORS 256
186
187
188struct atiixp;
189
190
191
192
193
194struct atiixp_dma_desc {
195 __le32 addr;
196 u16 status;
197 u16 size;
198 __le32 next;
199};
200
201
202
203
204enum { ATI_DMA_PLAYBACK, ATI_DMA_CAPTURE, ATI_DMA_SPDIF, NUM_ATI_DMAS };
205enum { ATI_PCM_OUT, ATI_PCM_IN, ATI_PCM_SPDIF, NUM_ATI_PCMS };
206enum { ATI_PCMDEV_ANALOG, ATI_PCMDEV_DIGITAL, NUM_ATI_PCMDEVS };
207
208#define NUM_ATI_CODECS 3
209
210
211
212
213
214struct atiixp_dma_ops {
215 int type;
216 unsigned int llp_offset;
217 unsigned int dt_cur;
218
219 void (*enable_dma)(struct atiixp *chip, int on);
220
221 void (*enable_transfer)(struct atiixp *chip, int on);
222
223 void (*flush_dma)(struct atiixp *chip);
224};
225
226
227
228
229struct atiixp_dma {
230 const struct atiixp_dma_ops *ops;
231 struct snd_dma_buffer desc_buf;
232 struct snd_pcm_substream *substream;
233 unsigned int buf_addr, buf_bytes;
234 unsigned int period_bytes, periods;
235 int opened;
236 int running;
237 int suspended;
238 int pcm_open_flag;
239 int ac97_pcm_type;
240 unsigned int saved_curptr;
241};
242
243
244
245
246struct atiixp {
247 struct snd_card *card;
248 struct pci_dev *pci;
249
250 unsigned long addr;
251 void __iomem *remap_addr;
252 int irq;
253
254 struct snd_ac97_bus *ac97_bus;
255 struct snd_ac97 *ac97[NUM_ATI_CODECS];
256
257 spinlock_t reg_lock;
258
259 struct atiixp_dma dmas[NUM_ATI_DMAS];
260 struct ac97_pcm *pcms[NUM_ATI_PCMS];
261 struct snd_pcm *pcmdevs[NUM_ATI_PCMDEVS];
262
263 int max_channels;
264
265 unsigned int codec_not_ready_bits;
266
267 int spdif_over_aclink;
268 struct mutex open_mutex;
269};
270
271
272
273
274static const struct pci_device_id snd_atiixp_ids[] = {
275 { PCI_VDEVICE(ATI, 0x4341), 0 },
276 { PCI_VDEVICE(ATI, 0x4361), 0 },
277 { PCI_VDEVICE(ATI, 0x4370), 0 },
278 { PCI_VDEVICE(ATI, 0x4382), 0 },
279 { 0, }
280};
281
282MODULE_DEVICE_TABLE(pci, snd_atiixp_ids);
283
284static const struct snd_pci_quirk atiixp_quirks[] = {
285 SND_PCI_QUIRK(0x105b, 0x0c81, "Foxconn RC4107MA-RS2", 0),
286 SND_PCI_QUIRK(0x15bd, 0x3100, "DFI RS482", 0),
287 { }
288};
289
290
291
292
293
294
295
296
297
298static int snd_atiixp_update_bits(struct atiixp *chip, unsigned int reg,
299 unsigned int mask, unsigned int value)
300{
301 void __iomem *addr = chip->remap_addr + reg;
302 unsigned int data, old_data;
303 old_data = data = readl(addr);
304 data &= ~mask;
305 data |= value;
306 if (old_data == data)
307 return 0;
308 writel(data, addr);
309 return 1;
310}
311
312
313
314
315#define atiixp_write(chip,reg,value) \
316 writel(value, chip->remap_addr + ATI_REG_##reg)
317#define atiixp_read(chip,reg) \
318 readl(chip->remap_addr + ATI_REG_##reg)
319#define atiixp_update(chip,reg,mask,val) \
320 snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
321
322
323
324
325
326
327
328
329#define ATI_DESC_LIST_SIZE \
330 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc))
331
332
333
334
335
336
337
338
339
340
341static int atiixp_build_dma_packets(struct atiixp *chip, struct atiixp_dma *dma,
342 struct snd_pcm_substream *substream,
343 unsigned int periods,
344 unsigned int period_bytes)
345{
346 unsigned int i;
347 u32 addr, desc_addr;
348 unsigned long flags;
349
350 if (periods > ATI_MAX_DESCRIPTORS)
351 return -ENOMEM;
352
353 if (dma->desc_buf.area == NULL) {
354 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
355 &chip->pci->dev,
356 ATI_DESC_LIST_SIZE,
357 &dma->desc_buf) < 0)
358 return -ENOMEM;
359 dma->period_bytes = dma->periods = 0;
360 }
361
362 if (dma->periods == periods && dma->period_bytes == period_bytes)
363 return 0;
364
365
366 spin_lock_irqsave(&chip->reg_lock, flags);
367 writel(0, chip->remap_addr + dma->ops->llp_offset);
368 dma->ops->enable_dma(chip, 0);
369 dma->ops->enable_dma(chip, 1);
370 spin_unlock_irqrestore(&chip->reg_lock, flags);
371
372
373 addr = (u32)substream->runtime->dma_addr;
374 desc_addr = (u32)dma->desc_buf.addr;
375 for (i = 0; i < periods; i++) {
376 struct atiixp_dma_desc *desc;
377 desc = &((struct atiixp_dma_desc *)dma->desc_buf.area)[i];
378 desc->addr = cpu_to_le32(addr);
379 desc->status = 0;
380 desc->size = period_bytes >> 2;
381 desc_addr += sizeof(struct atiixp_dma_desc);
382 if (i == periods - 1)
383 desc->next = cpu_to_le32((u32)dma->desc_buf.addr);
384 else
385 desc->next = cpu_to_le32(desc_addr);
386 addr += period_bytes;
387 }
388
389 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
390 chip->remap_addr + dma->ops->llp_offset);
391
392 dma->period_bytes = period_bytes;
393 dma->periods = periods;
394
395 return 0;
396}
397
398
399
400
401static void atiixp_clear_dma_packets(struct atiixp *chip, struct atiixp_dma *dma,
402 struct snd_pcm_substream *substream)
403{
404 if (dma->desc_buf.area) {
405 writel(0, chip->remap_addr + dma->ops->llp_offset);
406 snd_dma_free_pages(&dma->desc_buf);
407 dma->desc_buf.area = NULL;
408 }
409}
410
411
412
413
414static int snd_atiixp_acquire_codec(struct atiixp *chip)
415{
416 int timeout = 1000;
417
418 while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) {
419 if (! timeout--) {
420 dev_warn(chip->card->dev, "codec acquire timeout\n");
421 return -EBUSY;
422 }
423 udelay(1);
424 }
425 return 0;
426}
427
428static unsigned short snd_atiixp_codec_read(struct atiixp *chip, unsigned short codec, unsigned short reg)
429{
430 unsigned int data;
431 int timeout;
432
433 if (snd_atiixp_acquire_codec(chip) < 0)
434 return 0xffff;
435 data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
436 ATI_REG_PHYS_OUT_ADDR_EN |
437 ATI_REG_PHYS_OUT_RW |
438 codec;
439 atiixp_write(chip, PHYS_OUT_ADDR, data);
440 if (snd_atiixp_acquire_codec(chip) < 0)
441 return 0xffff;
442 timeout = 1000;
443 do {
444 data = atiixp_read(chip, PHYS_IN_ADDR);
445 if (data & ATI_REG_PHYS_IN_READ_FLAG)
446 return data >> ATI_REG_PHYS_IN_DATA_SHIFT;
447 udelay(1);
448 } while (--timeout);
449
450 if (reg < 0x7c)
451 dev_warn(chip->card->dev, "codec read timeout (reg %x)\n", reg);
452 return 0xffff;
453}
454
455
456static void snd_atiixp_codec_write(struct atiixp *chip, unsigned short codec,
457 unsigned short reg, unsigned short val)
458{
459 unsigned int data;
460
461 if (snd_atiixp_acquire_codec(chip) < 0)
462 return;
463 data = ((unsigned int)val << ATI_REG_PHYS_OUT_DATA_SHIFT) |
464 ((unsigned int)reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
465 ATI_REG_PHYS_OUT_ADDR_EN | codec;
466 atiixp_write(chip, PHYS_OUT_ADDR, data);
467}
468
469
470static unsigned short snd_atiixp_ac97_read(struct snd_ac97 *ac97,
471 unsigned short reg)
472{
473 struct atiixp *chip = ac97->private_data;
474 return snd_atiixp_codec_read(chip, ac97->num, reg);
475
476}
477
478static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
479 unsigned short val)
480{
481 struct atiixp *chip = ac97->private_data;
482 snd_atiixp_codec_write(chip, ac97->num, reg, val);
483}
484
485
486
487
488static int snd_atiixp_aclink_reset(struct atiixp *chip)
489{
490 int timeout;
491
492
493 if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0))
494 udelay(10);
495
496
497 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET);
498 atiixp_read(chip, CMD);
499 udelay(10);
500 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0);
501
502 timeout = 10;
503 while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) {
504
505 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
506 ATI_REG_CMD_AC_SYNC);
507 atiixp_read(chip, CMD);
508 mdelay(1);
509 atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET);
510 if (!--timeout) {
511 dev_err(chip->card->dev, "codec reset timeout\n");
512 break;
513 }
514 }
515
516
517 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
518 ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET);
519
520 return 0;
521}
522
523#ifdef CONFIG_PM_SLEEP
524static int snd_atiixp_aclink_down(struct atiixp *chip)
525{
526
527
528 atiixp_update(chip, CMD,
529 ATI_REG_CMD_POWERDOWN | ATI_REG_CMD_AC_RESET,
530 ATI_REG_CMD_POWERDOWN);
531 return 0;
532}
533#endif
534
535
536
537
538
539
540
541
542
543#define ALL_CODEC_NOT_READY \
544 (ATI_REG_ISR_CODEC0_NOT_READY |\
545 ATI_REG_ISR_CODEC1_NOT_READY |\
546 ATI_REG_ISR_CODEC2_NOT_READY)
547#define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
548
549static int ac97_probing_bugs(struct pci_dev *pci)
550{
551 const struct snd_pci_quirk *q;
552
553 q = snd_pci_quirk_lookup(pci, atiixp_quirks);
554 if (q) {
555 dev_dbg(&pci->dev, "atiixp quirk for %s. Forcing codec %d\n",
556 snd_pci_quirk_name(q), q->value);
557 return q->value;
558 }
559
560 return -1;
561}
562
563static int snd_atiixp_codec_detect(struct atiixp *chip)
564{
565 int timeout;
566
567 chip->codec_not_ready_bits = 0;
568 if (ac97_codec == -1)
569 ac97_codec = ac97_probing_bugs(chip->pci);
570 if (ac97_codec >= 0) {
571 chip->codec_not_ready_bits |=
572 CODEC_CHECK_BITS ^ (1 << (ac97_codec + 10));
573 return 0;
574 }
575
576 atiixp_write(chip, IER, CODEC_CHECK_BITS);
577
578 timeout = 50;
579 while (timeout-- > 0) {
580 mdelay(1);
581 if (chip->codec_not_ready_bits)
582 break;
583 }
584 atiixp_write(chip, IER, 0);
585
586 if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
587 dev_err(chip->card->dev, "no codec detected!\n");
588 return -ENXIO;
589 }
590 return 0;
591}
592
593
594
595
596
597static int snd_atiixp_chip_start(struct atiixp *chip)
598{
599 unsigned int reg;
600
601
602 reg = atiixp_read(chip, CMD);
603 reg |= 0x02 << ATI_REG_CMD_SPDF_THRESHOLD_SHIFT;
604 reg |= ATI_REG_CMD_BURST_EN;
605 atiixp_write(chip, CMD, reg);
606
607 reg = atiixp_read(chip, SPDF_CMD);
608 reg &= ~(ATI_REG_SPDF_CMD_LFSR|ATI_REG_SPDF_CMD_SINGLE_CH);
609 atiixp_write(chip, SPDF_CMD, reg);
610
611
612 atiixp_write(chip, ISR, 0xffffffff);
613
614 atiixp_write(chip, IER,
615 ATI_REG_IER_IO_STATUS_EN |
616 ATI_REG_IER_IN_XRUN_EN |
617 ATI_REG_IER_OUT_XRUN_EN |
618 ATI_REG_IER_SPDF_XRUN_EN |
619 ATI_REG_IER_SPDF_STATUS_EN);
620 return 0;
621}
622
623
624
625
626
627static int snd_atiixp_chip_stop(struct atiixp *chip)
628{
629
630 atiixp_write(chip, ISR, atiixp_read(chip, ISR));
631
632 atiixp_write(chip, IER, 0);
633 return 0;
634}
635
636
637
638
639
640
641
642
643
644
645
646static snd_pcm_uframes_t snd_atiixp_pcm_pointer(struct snd_pcm_substream *substream)
647{
648 struct atiixp *chip = snd_pcm_substream_chip(substream);
649 struct snd_pcm_runtime *runtime = substream->runtime;
650 struct atiixp_dma *dma = runtime->private_data;
651 unsigned int curptr;
652 int timeout = 1000;
653
654 while (timeout--) {
655 curptr = readl(chip->remap_addr + dma->ops->dt_cur);
656 if (curptr < dma->buf_addr)
657 continue;
658 curptr -= dma->buf_addr;
659 if (curptr >= dma->buf_bytes)
660 continue;
661 return bytes_to_frames(runtime, curptr);
662 }
663 dev_dbg(chip->card->dev, "invalid DMA pointer read 0x%x (buf=%x)\n",
664 readl(chip->remap_addr + dma->ops->dt_cur), dma->buf_addr);
665 return 0;
666}
667
668
669
670
671static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
672{
673 if (! dma->substream || ! dma->running)
674 return;
675 dev_dbg(chip->card->dev, "XRUN detected (DMA %d)\n", dma->ops->type);
676 snd_pcm_stop_xrun(dma->substream);
677}
678
679
680
681
682static void snd_atiixp_update_dma(struct atiixp *chip, struct atiixp_dma *dma)
683{
684 if (! dma->substream || ! dma->running)
685 return;
686 snd_pcm_period_elapsed(dma->substream);
687}
688
689
690
691static void snd_atiixp_check_bus_busy(struct atiixp *chip)
692{
693 unsigned int bus_busy;
694 if (atiixp_read(chip, CMD) & (ATI_REG_CMD_SEND_EN |
695 ATI_REG_CMD_RECEIVE_EN |
696 ATI_REG_CMD_SPDF_OUT_EN))
697 bus_busy = ATI_REG_IER_SET_BUS_BUSY;
698 else
699 bus_busy = 0;
700 atiixp_update(chip, IER, ATI_REG_IER_SET_BUS_BUSY, bus_busy);
701}
702
703
704
705
706static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
707{
708 struct atiixp *chip = snd_pcm_substream_chip(substream);
709 struct atiixp_dma *dma = substream->runtime->private_data;
710 int err = 0;
711
712 if (snd_BUG_ON(!dma->ops->enable_transfer ||
713 !dma->ops->flush_dma))
714 return -EINVAL;
715
716 spin_lock(&chip->reg_lock);
717 switch (cmd) {
718 case SNDRV_PCM_TRIGGER_START:
719 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
720 case SNDRV_PCM_TRIGGER_RESUME:
721 if (dma->running && dma->suspended &&
722 cmd == SNDRV_PCM_TRIGGER_RESUME)
723 writel(dma->saved_curptr, chip->remap_addr +
724 dma->ops->dt_cur);
725 dma->ops->enable_transfer(chip, 1);
726 dma->running = 1;
727 dma->suspended = 0;
728 break;
729 case SNDRV_PCM_TRIGGER_STOP:
730 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
731 case SNDRV_PCM_TRIGGER_SUSPEND:
732 dma->suspended = cmd == SNDRV_PCM_TRIGGER_SUSPEND;
733 if (dma->running && dma->suspended)
734 dma->saved_curptr = readl(chip->remap_addr +
735 dma->ops->dt_cur);
736 dma->ops->enable_transfer(chip, 0);
737 dma->running = 0;
738 break;
739 default:
740 err = -EINVAL;
741 break;
742 }
743 if (! err) {
744 snd_atiixp_check_bus_busy(chip);
745 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
746 dma->ops->flush_dma(chip);
747 snd_atiixp_check_bus_busy(chip);
748 }
749 }
750 spin_unlock(&chip->reg_lock);
751 return err;
752}
753
754
755
756
757
758
759
760
761
762static void atiixp_out_flush_dma(struct atiixp *chip)
763{
764 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);
765}
766
767
768static void atiixp_out_enable_dma(struct atiixp *chip, int on)
769{
770 unsigned int data;
771 data = atiixp_read(chip, CMD);
772 if (on) {
773 if (data & ATI_REG_CMD_OUT_DMA_EN)
774 return;
775 atiixp_out_flush_dma(chip);
776 data |= ATI_REG_CMD_OUT_DMA_EN;
777 } else
778 data &= ~ATI_REG_CMD_OUT_DMA_EN;
779 atiixp_write(chip, CMD, data);
780}
781
782
783static void atiixp_out_enable_transfer(struct atiixp *chip, int on)
784{
785 atiixp_update(chip, CMD, ATI_REG_CMD_SEND_EN,
786 on ? ATI_REG_CMD_SEND_EN : 0);
787}
788
789
790static void atiixp_in_enable_dma(struct atiixp *chip, int on)
791{
792 atiixp_update(chip, CMD, ATI_REG_CMD_IN_DMA_EN,
793 on ? ATI_REG_CMD_IN_DMA_EN : 0);
794}
795
796
797static void atiixp_in_enable_transfer(struct atiixp *chip, int on)
798{
799 if (on) {
800 unsigned int data = atiixp_read(chip, CMD);
801 if (! (data & ATI_REG_CMD_RECEIVE_EN)) {
802 data |= ATI_REG_CMD_RECEIVE_EN;
803#if 0
804
805 while ((atiixp_read(chip, COUNTER) &
806 ATI_REG_COUNTER_SLOT) != 5)
807 ;
808#endif
809 atiixp_write(chip, CMD, data);
810 }
811 } else
812 atiixp_update(chip, CMD, ATI_REG_CMD_RECEIVE_EN, 0);
813}
814
815
816static void atiixp_in_flush_dma(struct atiixp *chip)
817{
818 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_IN_FLUSH);
819}
820
821
822static void atiixp_spdif_enable_dma(struct atiixp *chip, int on)
823{
824 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_DMA_EN,
825 on ? ATI_REG_CMD_SPDF_DMA_EN : 0);
826}
827
828
829static void atiixp_spdif_enable_transfer(struct atiixp *chip, int on)
830{
831 unsigned int data;
832 data = atiixp_read(chip, CMD);
833 if (on)
834 data |= ATI_REG_CMD_SPDF_OUT_EN;
835 else
836 data &= ~ATI_REG_CMD_SPDF_OUT_EN;
837 atiixp_write(chip, CMD, data);
838}
839
840
841static void atiixp_spdif_flush_dma(struct atiixp *chip)
842{
843 int timeout;
844
845
846 atiixp_spdif_enable_dma(chip, 0);
847 atiixp_spdif_enable_transfer(chip, 1);
848
849 timeout = 100;
850 do {
851 if (! (atiixp_read(chip, SPDF_DMA_DT_SIZE) & ATI_REG_DMA_FIFO_USED))
852 break;
853 udelay(1);
854 } while (timeout-- > 0);
855
856 atiixp_spdif_enable_transfer(chip, 0);
857}
858
859
860static int snd_atiixp_spdif_prepare(struct snd_pcm_substream *substream)
861{
862 struct atiixp *chip = snd_pcm_substream_chip(substream);
863
864 spin_lock_irq(&chip->reg_lock);
865 if (chip->spdif_over_aclink) {
866 unsigned int data;
867
868 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK,
869 ATI_REG_CMD_SPDF_CONFIG_01);
870 data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
871 data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
872 ATI_REG_OUT_DMA_SLOT_BIT(11);
873 data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
874 atiixp_write(chip, OUT_DMA_SLOT, data);
875 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
876 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
877 ATI_REG_CMD_INTERLEAVE_OUT : 0);
878 } else {
879 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK, 0);
880 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_SPDF, 0);
881 }
882 spin_unlock_irq(&chip->reg_lock);
883 return 0;
884}
885
886
887static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream)
888{
889 struct atiixp *chip = snd_pcm_substream_chip(substream);
890 unsigned int data;
891
892 spin_lock_irq(&chip->reg_lock);
893 data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
894 switch (substream->runtime->channels) {
895 case 8:
896 data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
897 ATI_REG_OUT_DMA_SLOT_BIT(11);
898 fallthrough;
899 case 6:
900 data |= ATI_REG_OUT_DMA_SLOT_BIT(7) |
901 ATI_REG_OUT_DMA_SLOT_BIT(8);
902 fallthrough;
903 case 4:
904 data |= ATI_REG_OUT_DMA_SLOT_BIT(6) |
905 ATI_REG_OUT_DMA_SLOT_BIT(9);
906 fallthrough;
907 default:
908 data |= ATI_REG_OUT_DMA_SLOT_BIT(3) |
909 ATI_REG_OUT_DMA_SLOT_BIT(4);
910 break;
911 }
912
913
914 data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
915 atiixp_write(chip, OUT_DMA_SLOT, data);
916
917 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
918 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
919 ATI_REG_CMD_INTERLEAVE_OUT : 0);
920
921
922
923
924 atiixp_update(chip, 6CH_REORDER, ATI_REG_6CH_REORDER_EN,
925 substream->runtime->channels >= 6 ? ATI_REG_6CH_REORDER_EN: 0);
926
927 spin_unlock_irq(&chip->reg_lock);
928 return 0;
929}
930
931
932static int snd_atiixp_capture_prepare(struct snd_pcm_substream *substream)
933{
934 struct atiixp *chip = snd_pcm_substream_chip(substream);
935
936 spin_lock_irq(&chip->reg_lock);
937 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_IN,
938 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
939 ATI_REG_CMD_INTERLEAVE_IN : 0);
940 spin_unlock_irq(&chip->reg_lock);
941 return 0;
942}
943
944
945
946
947static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream *substream,
948 struct snd_pcm_hw_params *hw_params)
949{
950 struct atiixp *chip = snd_pcm_substream_chip(substream);
951 struct atiixp_dma *dma = substream->runtime->private_data;
952 int err;
953
954 dma->buf_addr = substream->runtime->dma_addr;
955 dma->buf_bytes = params_buffer_bytes(hw_params);
956
957 err = atiixp_build_dma_packets(chip, dma, substream,
958 params_periods(hw_params),
959 params_period_bytes(hw_params));
960 if (err < 0)
961 return err;
962
963 if (dma->ac97_pcm_type >= 0) {
964 struct ac97_pcm *pcm = chip->pcms[dma->ac97_pcm_type];
965
966
967
968 if (dma->pcm_open_flag) {
969 snd_ac97_pcm_close(pcm);
970 dma->pcm_open_flag = 0;
971 }
972 err = snd_ac97_pcm_open(pcm, params_rate(hw_params),
973 params_channels(hw_params),
974 pcm->r[0].slots);
975 if (err >= 0)
976 dma->pcm_open_flag = 1;
977 }
978
979 return err;
980}
981
982static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
983{
984 struct atiixp *chip = snd_pcm_substream_chip(substream);
985 struct atiixp_dma *dma = substream->runtime->private_data;
986
987 if (dma->pcm_open_flag) {
988 struct ac97_pcm *pcm = chip->pcms[dma->ac97_pcm_type];
989 snd_ac97_pcm_close(pcm);
990 dma->pcm_open_flag = 0;
991 }
992 atiixp_clear_dma_packets(chip, dma, substream);
993 return 0;
994}
995
996
997
998
999
1000static const struct snd_pcm_hardware snd_atiixp_pcm_hw =
1001{
1002 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1003 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1004 SNDRV_PCM_INFO_PAUSE |
1005 SNDRV_PCM_INFO_RESUME |
1006 SNDRV_PCM_INFO_MMAP_VALID),
1007 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
1008 .rates = SNDRV_PCM_RATE_48000,
1009 .rate_min = 48000,
1010 .rate_max = 48000,
1011 .channels_min = 2,
1012 .channels_max = 2,
1013 .buffer_bytes_max = 256 * 1024,
1014 .period_bytes_min = 32,
1015 .period_bytes_max = 128 * 1024,
1016 .periods_min = 2,
1017 .periods_max = ATI_MAX_DESCRIPTORS,
1018};
1019
1020static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
1021 struct atiixp_dma *dma, int pcm_type)
1022{
1023 struct atiixp *chip = snd_pcm_substream_chip(substream);
1024 struct snd_pcm_runtime *runtime = substream->runtime;
1025 int err;
1026
1027 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
1028 return -EINVAL;
1029
1030 if (dma->opened)
1031 return -EBUSY;
1032 dma->substream = substream;
1033 runtime->hw = snd_atiixp_pcm_hw;
1034 dma->ac97_pcm_type = pcm_type;
1035 if (pcm_type >= 0) {
1036 runtime->hw.rates = chip->pcms[pcm_type]->rates;
1037 snd_pcm_limit_hw_rates(runtime);
1038 } else {
1039
1040 runtime->hw.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1041 }
1042 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1043 if (err < 0)
1044 return err;
1045 runtime->private_data = dma;
1046
1047
1048 spin_lock_irq(&chip->reg_lock);
1049 dma->ops->enable_dma(chip, 1);
1050 spin_unlock_irq(&chip->reg_lock);
1051 dma->opened = 1;
1052
1053 return 0;
1054}
1055
1056static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
1057 struct atiixp_dma *dma)
1058{
1059 struct atiixp *chip = snd_pcm_substream_chip(substream);
1060
1061 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
1062 return -EINVAL;
1063 spin_lock_irq(&chip->reg_lock);
1064 dma->ops->enable_dma(chip, 0);
1065 spin_unlock_irq(&chip->reg_lock);
1066 dma->substream = NULL;
1067 dma->opened = 0;
1068 return 0;
1069}
1070
1071
1072
1073static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
1074{
1075 struct atiixp *chip = snd_pcm_substream_chip(substream);
1076 int err;
1077
1078 mutex_lock(&chip->open_mutex);
1079 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);
1080 mutex_unlock(&chip->open_mutex);
1081 if (err < 0)
1082 return err;
1083 substream->runtime->hw.channels_max = chip->max_channels;
1084 if (chip->max_channels > 2)
1085
1086 snd_pcm_hw_constraint_step(substream->runtime, 0,
1087 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1088 return 0;
1089}
1090
1091static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
1092{
1093 struct atiixp *chip = snd_pcm_substream_chip(substream);
1094 int err;
1095 mutex_lock(&chip->open_mutex);
1096 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1097 mutex_unlock(&chip->open_mutex);
1098 return err;
1099}
1100
1101static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
1102{
1103 struct atiixp *chip = snd_pcm_substream_chip(substream);
1104 return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
1105}
1106
1107static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
1108{
1109 struct atiixp *chip = snd_pcm_substream_chip(substream);
1110 return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
1111}
1112
1113static int snd_atiixp_spdif_open(struct snd_pcm_substream *substream)
1114{
1115 struct atiixp *chip = snd_pcm_substream_chip(substream);
1116 int err;
1117 mutex_lock(&chip->open_mutex);
1118 if (chip->spdif_over_aclink)
1119 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 2);
1120 else
1121 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_SPDIF], -1);
1122 mutex_unlock(&chip->open_mutex);
1123 return err;
1124}
1125
1126static int snd_atiixp_spdif_close(struct snd_pcm_substream *substream)
1127{
1128 struct atiixp *chip = snd_pcm_substream_chip(substream);
1129 int err;
1130 mutex_lock(&chip->open_mutex);
1131 if (chip->spdif_over_aclink)
1132 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1133 else
1134 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_SPDIF]);
1135 mutex_unlock(&chip->open_mutex);
1136 return err;
1137}
1138
1139
1140static const struct snd_pcm_ops snd_atiixp_playback_ops = {
1141 .open = snd_atiixp_playback_open,
1142 .close = snd_atiixp_playback_close,
1143 .hw_params = snd_atiixp_pcm_hw_params,
1144 .hw_free = snd_atiixp_pcm_hw_free,
1145 .prepare = snd_atiixp_playback_prepare,
1146 .trigger = snd_atiixp_pcm_trigger,
1147 .pointer = snd_atiixp_pcm_pointer,
1148};
1149
1150
1151static const struct snd_pcm_ops snd_atiixp_capture_ops = {
1152 .open = snd_atiixp_capture_open,
1153 .close = snd_atiixp_capture_close,
1154 .hw_params = snd_atiixp_pcm_hw_params,
1155 .hw_free = snd_atiixp_pcm_hw_free,
1156 .prepare = snd_atiixp_capture_prepare,
1157 .trigger = snd_atiixp_pcm_trigger,
1158 .pointer = snd_atiixp_pcm_pointer,
1159};
1160
1161
1162static const struct snd_pcm_ops snd_atiixp_spdif_ops = {
1163 .open = snd_atiixp_spdif_open,
1164 .close = snd_atiixp_spdif_close,
1165 .hw_params = snd_atiixp_pcm_hw_params,
1166 .hw_free = snd_atiixp_pcm_hw_free,
1167 .prepare = snd_atiixp_spdif_prepare,
1168 .trigger = snd_atiixp_pcm_trigger,
1169 .pointer = snd_atiixp_pcm_pointer,
1170};
1171
1172static const struct ac97_pcm atiixp_pcm_defs[] = {
1173
1174 {
1175 .exclusive = 1,
1176 .r = { {
1177 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1178 (1 << AC97_SLOT_PCM_RIGHT) |
1179 (1 << AC97_SLOT_PCM_CENTER) |
1180 (1 << AC97_SLOT_PCM_SLEFT) |
1181 (1 << AC97_SLOT_PCM_SRIGHT) |
1182 (1 << AC97_SLOT_LFE)
1183 }
1184 }
1185 },
1186
1187 {
1188 .stream = 1,
1189 .exclusive = 1,
1190 .r = { {
1191 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1192 (1 << AC97_SLOT_PCM_RIGHT)
1193 }
1194 }
1195 },
1196
1197 {
1198 .exclusive = 1,
1199 .spdif = 1,
1200 .r = { {
1201 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1202 (1 << AC97_SLOT_SPDIF_RIGHT2)
1203 }
1204 }
1205 },
1206};
1207
1208static const struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
1209 .type = ATI_DMA_PLAYBACK,
1210 .llp_offset = ATI_REG_OUT_DMA_LINKPTR,
1211 .dt_cur = ATI_REG_OUT_DMA_DT_CUR,
1212 .enable_dma = atiixp_out_enable_dma,
1213 .enable_transfer = atiixp_out_enable_transfer,
1214 .flush_dma = atiixp_out_flush_dma,
1215};
1216
1217static const struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
1218 .type = ATI_DMA_CAPTURE,
1219 .llp_offset = ATI_REG_IN_DMA_LINKPTR,
1220 .dt_cur = ATI_REG_IN_DMA_DT_CUR,
1221 .enable_dma = atiixp_in_enable_dma,
1222 .enable_transfer = atiixp_in_enable_transfer,
1223 .flush_dma = atiixp_in_flush_dma,
1224};
1225
1226static const struct atiixp_dma_ops snd_atiixp_spdif_dma_ops = {
1227 .type = ATI_DMA_SPDIF,
1228 .llp_offset = ATI_REG_SPDF_DMA_LINKPTR,
1229 .dt_cur = ATI_REG_SPDF_DMA_DT_CUR,
1230 .enable_dma = atiixp_spdif_enable_dma,
1231 .enable_transfer = atiixp_spdif_enable_transfer,
1232 .flush_dma = atiixp_spdif_flush_dma,
1233};
1234
1235
1236static int snd_atiixp_pcm_new(struct atiixp *chip)
1237{
1238 struct snd_pcm *pcm;
1239 struct snd_pcm_chmap *chmap;
1240 struct snd_ac97_bus *pbus = chip->ac97_bus;
1241 int err, i, num_pcms;
1242
1243
1244 chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;
1245 chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;
1246 if (! chip->spdif_over_aclink)
1247 chip->dmas[ATI_DMA_SPDIF].ops = &snd_atiixp_spdif_dma_ops;
1248
1249
1250 if (chip->spdif_over_aclink)
1251 num_pcms = 3;
1252 else
1253 num_pcms = 2;
1254 err = snd_ac97_pcm_assign(pbus, num_pcms, atiixp_pcm_defs);
1255 if (err < 0)
1256 return err;
1257 for (i = 0; i < num_pcms; i++)
1258 chip->pcms[i] = &pbus->pcms[i];
1259
1260 chip->max_channels = 2;
1261 if (pbus->pcms[ATI_PCM_OUT].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
1262 if (pbus->pcms[ATI_PCM_OUT].r[0].slots & (1 << AC97_SLOT_LFE))
1263 chip->max_channels = 6;
1264 else
1265 chip->max_channels = 4;
1266 }
1267
1268
1269 err = snd_pcm_new(chip->card, "ATI IXP AC97",
1270 ATI_PCMDEV_ANALOG, 1, 1, &pcm);
1271 if (err < 0)
1272 return err;
1273 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
1274 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
1275 pcm->private_data = chip;
1276 strcpy(pcm->name, "ATI IXP AC97");
1277 chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;
1278
1279 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1280 &chip->pci->dev, 64*1024, 128*1024);
1281
1282 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1283 snd_pcm_alt_chmaps, chip->max_channels, 0,
1284 &chmap);
1285 if (err < 0)
1286 return err;
1287 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1288 chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1289
1290
1291 if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)
1292 return 0;
1293
1294
1295 if (chip->pcms[ATI_PCM_SPDIF])
1296 chip->pcms[ATI_PCM_SPDIF]->rates = SNDRV_PCM_RATE_48000;
1297
1298
1299 err = snd_pcm_new(chip->card, "ATI IXP IEC958",
1300 ATI_PCMDEV_DIGITAL, 1, 0, &pcm);
1301 if (err < 0)
1302 return err;
1303 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_spdif_ops);
1304 pcm->private_data = chip;
1305 if (chip->spdif_over_aclink)
1306 strcpy(pcm->name, "ATI IXP IEC958 (AC97)");
1307 else
1308 strcpy(pcm->name, "ATI IXP IEC958 (Direct)");
1309 chip->pcmdevs[ATI_PCMDEV_DIGITAL] = pcm;
1310
1311 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1312 &chip->pci->dev, 64*1024, 128*1024);
1313
1314
1315 for (i = 0; i < NUM_ATI_CODECS; i++) {
1316 if (chip->ac97[i])
1317 snd_ac97_update_bits(chip->ac97[i],
1318 AC97_EXTENDED_STATUS,
1319 0x03 << 4, 0x03 << 4);
1320 }
1321
1322 return 0;
1323}
1324
1325
1326
1327
1328
1329
1330static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
1331{
1332 struct atiixp *chip = dev_id;
1333 unsigned int status;
1334
1335 status = atiixp_read(chip, ISR);
1336
1337 if (! status)
1338 return IRQ_NONE;
1339
1340
1341 if (status & ATI_REG_ISR_OUT_XRUN)
1342 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1343 else if (status & ATI_REG_ISR_OUT_STATUS)
1344 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1345 if (status & ATI_REG_ISR_IN_XRUN)
1346 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1347 else if (status & ATI_REG_ISR_IN_STATUS)
1348 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1349 if (! chip->spdif_over_aclink) {
1350 if (status & ATI_REG_ISR_SPDF_XRUN)
1351 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
1352 else if (status & ATI_REG_ISR_SPDF_STATUS)
1353 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
1354 }
1355
1356
1357 if (status & CODEC_CHECK_BITS) {
1358 unsigned int detected;
1359 detected = status & CODEC_CHECK_BITS;
1360 spin_lock(&chip->reg_lock);
1361 chip->codec_not_ready_bits |= detected;
1362 atiixp_update(chip, IER, detected, 0);
1363 spin_unlock(&chip->reg_lock);
1364 }
1365
1366
1367 atiixp_write(chip, ISR, status);
1368
1369 return IRQ_HANDLED;
1370}
1371
1372
1373
1374
1375
1376
1377static const struct ac97_quirk ac97_quirks[] = {
1378 {
1379 .subvendor = 0x103c,
1380 .subdevice = 0x006b,
1381 .name = "HP Pavilion ZV5030US",
1382 .type = AC97_TUNE_MUTE_LED
1383 },
1384 {
1385 .subvendor = 0x103c,
1386 .subdevice = 0x308b,
1387 .name = "HP nx6125",
1388 .type = AC97_TUNE_MUTE_LED
1389 },
1390 {
1391 .subvendor = 0x103c,
1392 .subdevice = 0x3091,
1393 .name = "unknown HP",
1394 .type = AC97_TUNE_MUTE_LED
1395 },
1396 { }
1397};
1398
1399static int snd_atiixp_mixer_new(struct atiixp *chip, int clock,
1400 const char *quirk_override)
1401{
1402 struct snd_ac97_bus *pbus;
1403 struct snd_ac97_template ac97;
1404 int i, err;
1405 int codec_count;
1406 static const struct snd_ac97_bus_ops ops = {
1407 .write = snd_atiixp_ac97_write,
1408 .read = snd_atiixp_ac97_read,
1409 };
1410 static const unsigned int codec_skip[NUM_ATI_CODECS] = {
1411 ATI_REG_ISR_CODEC0_NOT_READY,
1412 ATI_REG_ISR_CODEC1_NOT_READY,
1413 ATI_REG_ISR_CODEC2_NOT_READY,
1414 };
1415
1416 if (snd_atiixp_codec_detect(chip) < 0)
1417 return -ENXIO;
1418
1419 err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus);
1420 if (err < 0)
1421 return err;
1422 pbus->clock = clock;
1423 chip->ac97_bus = pbus;
1424
1425 codec_count = 0;
1426 for (i = 0; i < NUM_ATI_CODECS; i++) {
1427 if (chip->codec_not_ready_bits & codec_skip[i])
1428 continue;
1429 memset(&ac97, 0, sizeof(ac97));
1430 ac97.private_data = chip;
1431 ac97.pci = chip->pci;
1432 ac97.num = i;
1433 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1434 if (! chip->spdif_over_aclink)
1435 ac97.scaps |= AC97_SCAP_NO_SPDIF;
1436 err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i]);
1437 if (err < 0) {
1438 chip->ac97[i] = NULL;
1439 dev_dbg(chip->card->dev,
1440 "codec %d not available for audio\n", i);
1441 continue;
1442 }
1443 codec_count++;
1444 }
1445
1446 if (! codec_count) {
1447 dev_err(chip->card->dev, "no codec available\n");
1448 return -ENODEV;
1449 }
1450
1451 snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
1452
1453 return 0;
1454}
1455
1456
1457#ifdef CONFIG_PM_SLEEP
1458
1459
1460
1461static int snd_atiixp_suspend(struct device *dev)
1462{
1463 struct snd_card *card = dev_get_drvdata(dev);
1464 struct atiixp *chip = card->private_data;
1465 int i;
1466
1467 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1468 for (i = 0; i < NUM_ATI_CODECS; i++)
1469 snd_ac97_suspend(chip->ac97[i]);
1470 snd_atiixp_aclink_down(chip);
1471 snd_atiixp_chip_stop(chip);
1472 return 0;
1473}
1474
1475static int snd_atiixp_resume(struct device *dev)
1476{
1477 struct snd_card *card = dev_get_drvdata(dev);
1478 struct atiixp *chip = card->private_data;
1479 int i;
1480
1481 snd_atiixp_aclink_reset(chip);
1482 snd_atiixp_chip_start(chip);
1483
1484 for (i = 0; i < NUM_ATI_CODECS; i++)
1485 snd_ac97_resume(chip->ac97[i]);
1486
1487 for (i = 0; i < NUM_ATI_PCMDEVS; i++)
1488 if (chip->pcmdevs[i]) {
1489 struct atiixp_dma *dma = &chip->dmas[i];
1490 if (dma->substream && dma->suspended) {
1491 dma->ops->enable_dma(chip, 1);
1492 dma->substream->ops->prepare(dma->substream);
1493 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
1494 chip->remap_addr + dma->ops->llp_offset);
1495 }
1496 }
1497
1498 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1499 return 0;
1500}
1501
1502static SIMPLE_DEV_PM_OPS(snd_atiixp_pm, snd_atiixp_suspend, snd_atiixp_resume);
1503#define SND_ATIIXP_PM_OPS &snd_atiixp_pm
1504#else
1505#define SND_ATIIXP_PM_OPS NULL
1506#endif
1507
1508
1509
1510
1511
1512
1513static void snd_atiixp_proc_read(struct snd_info_entry *entry,
1514 struct snd_info_buffer *buffer)
1515{
1516 struct atiixp *chip = entry->private_data;
1517 int i;
1518
1519 for (i = 0; i < 256; i += 4)
1520 snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
1521}
1522
1523static void snd_atiixp_proc_init(struct atiixp *chip)
1524{
1525 snd_card_ro_proc_new(chip->card, "atiixp", chip, snd_atiixp_proc_read);
1526}
1527
1528
1529
1530
1531
1532
1533static void snd_atiixp_free(struct snd_card *card)
1534{
1535 snd_atiixp_chip_stop(card->private_data);
1536}
1537
1538
1539
1540
1541static int snd_atiixp_init(struct snd_card *card, struct pci_dev *pci)
1542{
1543 struct atiixp *chip = card->private_data;
1544 int err;
1545
1546 err = pcim_enable_device(pci);
1547 if (err < 0)
1548 return err;
1549
1550 spin_lock_init(&chip->reg_lock);
1551 mutex_init(&chip->open_mutex);
1552 chip->card = card;
1553 chip->pci = pci;
1554 chip->irq = -1;
1555 err = pcim_iomap_regions(pci, 1 << 0, "ATI IXP AC97");
1556 if (err < 0)
1557 return err;
1558 chip->addr = pci_resource_start(pci, 0);
1559 chip->remap_addr = pcim_iomap_table(pci)[0];
1560
1561 if (devm_request_irq(&pci->dev, pci->irq, snd_atiixp_interrupt,
1562 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1563 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1564 return -EBUSY;
1565 }
1566 chip->irq = pci->irq;
1567 card->sync_irq = chip->irq;
1568 card->private_free = snd_atiixp_free;
1569 pci_set_master(pci);
1570
1571 return 0;
1572}
1573
1574
1575static int __snd_atiixp_probe(struct pci_dev *pci,
1576 const struct pci_device_id *pci_id)
1577{
1578 struct snd_card *card;
1579 struct atiixp *chip;
1580 int err;
1581
1582 err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
1583 sizeof(*chip), &card);
1584 if (err < 0)
1585 return err;
1586 chip = card->private_data;
1587
1588 strcpy(card->driver, spdif_aclink ? "ATIIXP" : "ATIIXP-SPDMA");
1589 strcpy(card->shortname, "ATI IXP");
1590 err = snd_atiixp_init(card, pci);
1591 if (err < 0)
1592 return err;
1593
1594 err = snd_atiixp_aclink_reset(chip);
1595 if (err < 0)
1596 return err;
1597
1598 chip->spdif_over_aclink = spdif_aclink;
1599
1600 err = snd_atiixp_mixer_new(chip, ac97_clock, ac97_quirk);
1601 if (err < 0)
1602 return err;
1603
1604 err = snd_atiixp_pcm_new(chip);
1605 if (err < 0)
1606 return err;
1607
1608 snd_atiixp_proc_init(chip);
1609
1610 snd_atiixp_chip_start(chip);
1611
1612 snprintf(card->longname, sizeof(card->longname),
1613 "%s rev %x with %s at %#lx, irq %i", card->shortname,
1614 pci->revision,
1615 chip->ac97[0] ? snd_ac97_get_short_name(chip->ac97[0]) : "?",
1616 chip->addr, chip->irq);
1617
1618 err = snd_card_register(card);
1619 if (err < 0)
1620 return err;
1621
1622 pci_set_drvdata(pci, card);
1623 return 0;
1624}
1625
1626static int snd_atiixp_probe(struct pci_dev *pci,
1627 const struct pci_device_id *pci_id)
1628{
1629 return snd_card_free_on_error(&pci->dev, __snd_atiixp_probe(pci, pci_id));
1630}
1631
1632static struct pci_driver atiixp_driver = {
1633 .name = KBUILD_MODNAME,
1634 .id_table = snd_atiixp_ids,
1635 .probe = snd_atiixp_probe,
1636 .driver = {
1637 .pm = SND_ATIIXP_PM_OPS,
1638 },
1639};
1640
1641module_pci_driver(atiixp_driver);
1642
