1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ALSA driver for ATI IXP 150/200/250/300 AC97 controllers
5 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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>
23 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
24 MODULE_DESCRIPTION("ATI IXP AC97 controller");
25 MODULE_LICENSE("GPL");
27 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
28 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
29 static int ac97_clock = 48000;
30 static char *ac97_quirk;
31 static bool spdif_aclink = 1;
32 static int ac97_codec = -1;
34 module_param(index, int, 0444);
35 MODULE_PARM_DESC(index, "Index value for ATI IXP controller.");
36 module_param(id, charp, 0444);
37 MODULE_PARM_DESC(id, "ID string for ATI IXP controller.");
38 module_param(ac97_clock, int, 0444);
39 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
40 module_param(ac97_quirk, charp, 0444);
41 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
42 module_param(ac97_codec, int, 0444);
43 MODULE_PARM_DESC(ac97_codec, "Specify codec instead of probing.");
44 module_param(spdif_aclink, bool, 0444);
45 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
47 /* just for backward compatibility */
49 module_param(enable, bool, 0444);
55 #define ATI_REG_ISR 0x00 /* interrupt source */
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)
69 #define ATI_REG_IER 0x04 /* interrupt enable */
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) /* (RO */
82 #define ATI_REG_IER_SET_BUS_BUSY (1U<<14) /* (WO) audio is running */
84 #define ATI_REG_CMD 0x08 /* command */
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)
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
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
128 #define ATI_REG_SLOTREQ 0x14
130 #define ATI_REG_COUNTER 0x18
131 #define ATI_REG_COUNTER_SLOT (3U<<0) /* slot # */
132 #define ATI_REG_COUNTER_BITCLOCK (31U<<8)
134 #define ATI_REG_IN_FIFO_THRESHOLD 0x1c
136 #define ATI_REG_IN_DMA_LINKPTR 0x20
137 #define ATI_REG_IN_DMA_DT_START 0x24 /* RO */
138 #define ATI_REG_IN_DMA_DT_NEXT 0x28 /* RO */
139 #define ATI_REG_IN_DMA_DT_CUR 0x2c /* RO */
140 #define ATI_REG_IN_DMA_DT_SIZE 0x30
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
148 #define ATI_REG_OUT_DMA_LINKPTR 0x38
149 #define ATI_REG_OUT_DMA_DT_START 0x3c /* RO */
150 #define ATI_REG_OUT_DMA_DT_NEXT 0x40 /* RO */
151 #define ATI_REG_OUT_DMA_DT_CUR 0x44 /* RO */
152 #define ATI_REG_OUT_DMA_DT_SIZE 0x48
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) /* RO */
159 #define ATI_REG_SPDF_DMA_LINKPTR 0x50
160 #define ATI_REG_SPDF_DMA_DT_START 0x54 /* RO */
161 #define ATI_REG_SPDF_DMA_DT_NEXT 0x58 /* RO */
162 #define ATI_REG_SPDF_DMA_DT_CUR 0x5c /* RO */
163 #define ATI_REG_SPDF_DMA_DT_SIZE 0x60
165 #define ATI_REG_MODEM_MIRROR 0x7c
166 #define ATI_REG_AUDIO_MIRROR 0x80
168 #define ATI_REG_6CH_REORDER 0x84 /* reorder slots for 6ch */
169 #define ATI_REG_6CH_REORDER_EN (1U<<0) /* 3,4,7,8,6,9 -> 3,4,6,9,7,8 */
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)
176 #define ATI_REG_LINKPTR_EN (1U<<0)
178 /* [INT|OUT|SPDIF]_DMA_DT_SIZE */
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)
185 #define ATI_MAX_DESCRIPTORS 256 /* max number of descriptor packets */
191 * DMA packate descriptor
194 struct atiixp_dma_desc {
195 __le32 addr; /* DMA buffer address */
196 u16 status; /* status bits */
197 u16 size; /* size of the packet in dwords */
198 __le32 next; /* address of the next packet descriptor */
204 enum { ATI_DMA_PLAYBACK, ATI_DMA_CAPTURE, ATI_DMA_SPDIF, NUM_ATI_DMAS }; /* DMAs */
205 enum { ATI_PCM_OUT, ATI_PCM_IN, ATI_PCM_SPDIF, NUM_ATI_PCMS }; /* AC97 pcm slots */
206 enum { ATI_PCMDEV_ANALOG, ATI_PCMDEV_DIGITAL, NUM_ATI_PCMDEVS }; /* pcm devices */
208 #define NUM_ATI_CODECS 3
212 * constants and callbacks for each DMA type
214 struct atiixp_dma_ops {
215 int type; /* ATI_DMA_XXX */
216 unsigned int llp_offset; /* LINKPTR offset */
217 unsigned int dt_cur; /* DT_CUR offset */
218 /* called from open callback */
219 void (*enable_dma)(struct atiixp *chip, int on);
220 /* called from trigger (START/STOP) */
221 void (*enable_transfer)(struct atiixp *chip, int on);
222 /* called from trigger (STOP only) */
223 void (*flush_dma)(struct atiixp *chip);
230 const struct atiixp_dma_ops *ops;
231 struct snd_dma_buffer desc_buf;
232 struct snd_pcm_substream *substream; /* assigned PCM substream */
233 unsigned int buf_addr, buf_bytes; /* DMA buffer address, bytes */
234 unsigned int period_bytes, periods;
239 int ac97_pcm_type; /* index # of ac97_pcm to access, -1 = not used */
240 unsigned int saved_curptr;
247 struct snd_card *card;
251 void __iomem *remap_addr;
254 struct snd_ac97_bus *ac97_bus;
255 struct snd_ac97 *ac97[NUM_ATI_CODECS];
259 struct atiixp_dma dmas[NUM_ATI_DMAS];
260 struct ac97_pcm *pcms[NUM_ATI_PCMS];
261 struct snd_pcm *pcmdevs[NUM_ATI_PCMDEVS];
263 int max_channels; /* max. channels for PCM out */
265 unsigned int codec_not_ready_bits; /* for codec detection */
267 int spdif_over_aclink; /* passed from the module option */
268 struct mutex open_mutex; /* playback open mutex */
274 static const struct pci_device_id snd_atiixp_ids[] = {
275 { PCI_VDEVICE(ATI, 0x4341), 0 }, /* SB200 */
276 { PCI_VDEVICE(ATI, 0x4361), 0 }, /* SB300 */
277 { PCI_VDEVICE(ATI, 0x4370), 0 }, /* SB400 */
278 { PCI_VDEVICE(ATI, 0x4382), 0 }, /* SB600 */
282 MODULE_DEVICE_TABLE(pci, snd_atiixp_ids);
284 static 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),
295 * update the bits of the given register.
296 * return 1 if the bits changed.
298 static int snd_atiixp_update_bits(struct atiixp *chip, unsigned int reg,
299 unsigned int mask, unsigned int value)
301 void __iomem *addr = chip->remap_addr + reg;
302 unsigned int data, old_data;
303 old_data = data = readl(addr);
306 if (old_data == data)
313 * macros for easy use
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)
323 * handling DMA packets
325 * we allocate a linear buffer for the DMA, and split it to each packet.
326 * in a future version, a scatter-gather buffer should be implemented.
329 #define ATI_DESC_LIST_SIZE \
330 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc))
333 * build packets ring for the given buffer size.
335 * IXP handles the buffer descriptors, which are connected as a linked
336 * list. although we can change the list dynamically, in this version,
337 * a static RING of buffer descriptors is used.
339 * the ring is built in this function, and is set up to the hardware.
341 static 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)
350 if (periods > ATI_MAX_DESCRIPTORS)
353 if (dma->desc_buf.area == NULL) {
354 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
359 dma->period_bytes = dma->periods = 0; /* clear */
362 if (dma->periods == periods && dma->period_bytes == period_bytes)
365 /* reset DMA before changing the descriptor table */
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);
372 /* fill the entries */
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);
380 desc->size = period_bytes >> 2; /* in dwords */
381 desc_addr += sizeof(struct atiixp_dma_desc);
382 if (i == periods - 1)
383 desc->next = cpu_to_le32((u32)dma->desc_buf.addr);
385 desc->next = cpu_to_le32(desc_addr);
386 addr += period_bytes;
389 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
390 chip->remap_addr + dma->ops->llp_offset);
392 dma->period_bytes = period_bytes;
393 dma->periods = periods;
399 * remove the ring buffer and release it if assigned
401 static void atiixp_clear_dma_packets(struct atiixp *chip, struct atiixp_dma *dma,
402 struct snd_pcm_substream *substream)
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;
414 static int snd_atiixp_acquire_codec(struct atiixp *chip)
418 while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) {
420 dev_warn(chip->card->dev, "codec acquire timeout\n");
428 static unsigned short snd_atiixp_codec_read(struct atiixp *chip, unsigned short codec, unsigned short reg)
433 if (snd_atiixp_acquire_codec(chip) < 0)
435 data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
436 ATI_REG_PHYS_OUT_ADDR_EN |
437 ATI_REG_PHYS_OUT_RW |
439 atiixp_write(chip, PHYS_OUT_ADDR, data);
440 if (snd_atiixp_acquire_codec(chip) < 0)
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;
449 /* time out may happen during reset */
451 dev_warn(chip->card->dev, "codec read timeout (reg %x)\n", reg);
456 static void snd_atiixp_codec_write(struct atiixp *chip, unsigned short codec,
457 unsigned short reg, unsigned short val)
461 if (snd_atiixp_acquire_codec(chip) < 0)
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);
470 static unsigned short snd_atiixp_ac97_read(struct snd_ac97 *ac97,
473 struct atiixp *chip = ac97->private_data;
474 return snd_atiixp_codec_read(chip, ac97->num, reg);
478 static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
481 struct atiixp *chip = ac97->private_data;
482 snd_atiixp_codec_write(chip, ac97->num, reg, val);
488 static int snd_atiixp_aclink_reset(struct atiixp *chip)
492 /* reset powerdoewn */
493 if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0))
496 /* perform a software reset */
497 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET);
498 atiixp_read(chip, CMD);
500 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0);
503 while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) {
504 /* do a hard reset */
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);
509 atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET);
511 dev_err(chip->card->dev, "codec reset timeout\n");
516 /* deassert RESET and assert SYNC to make sure */
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);
523 #ifdef CONFIG_PM_SLEEP
524 static int snd_atiixp_aclink_down(struct atiixp *chip)
526 // if (atiixp_read(chip, MODEM_MIRROR) & 0x1) /* modem running, too? */
528 atiixp_update(chip, CMD,
529 ATI_REG_CMD_POWERDOWN | ATI_REG_CMD_AC_RESET,
530 ATI_REG_CMD_POWERDOWN);
536 * auto-detection of codecs
538 * the IXP chip can generate interrupts for the non-existing codecs.
539 * NEW_FRAME interrupt is used to make sure that the interrupt is generated
540 * even if all three codecs are connected.
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)
549 static int ac97_probing_bugs(struct pci_dev *pci)
551 const struct snd_pci_quirk *q;
553 q = snd_pci_quirk_lookup(pci, atiixp_quirks);
555 dev_dbg(&pci->dev, "atiixp quirk for %s. Forcing codec %d\n",
556 snd_pci_quirk_name(q), q->value);
559 /* this hardware doesn't need workarounds. Probe for codec */
563 static int snd_atiixp_codec_detect(struct atiixp *chip)
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));
576 atiixp_write(chip, IER, CODEC_CHECK_BITS);
577 /* wait for the interrupts */
579 while (timeout-- > 0) {
581 if (chip->codec_not_ready_bits)
584 atiixp_write(chip, IER, 0); /* disable irqs */
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");
595 * enable DMA and irqs
597 static int snd_atiixp_chip_start(struct atiixp *chip)
601 /* set up spdif, enable burst mode */
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);
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);
611 /* clear all interrupt source */
612 atiixp_write(chip, ISR, 0xffffffff);
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);
625 * disable DMA and IRQs
627 static int snd_atiixp_chip_stop(struct atiixp *chip)
629 /* clear interrupt source */
630 atiixp_write(chip, ISR, atiixp_read(chip, ISR));
632 atiixp_write(chip, IER, 0);
642 * pointer callback simplly reads XXX_DMA_DT_CUR register as the current
643 * position. when SG-buffer is implemented, the offset must be calculated
646 static snd_pcm_uframes_t snd_atiixp_pcm_pointer(struct snd_pcm_substream *substream)
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;
655 curptr = readl(chip->remap_addr + dma->ops->dt_cur);
656 if (curptr < dma->buf_addr)
658 curptr -= dma->buf_addr;
659 if (curptr >= dma->buf_bytes)
661 return bytes_to_frames(runtime, curptr);
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);
669 * XRUN detected, and stop the PCM substream
671 static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
673 if (! dma->substream || ! dma->running)
675 dev_dbg(chip->card->dev, "XRUN detected (DMA %d)\n", dma->ops->type);
676 snd_pcm_stop_xrun(dma->substream);
680 * the period ack. update the substream.
682 static void snd_atiixp_update_dma(struct atiixp *chip, struct atiixp_dma *dma)
684 if (! dma->substream || ! dma->running)
686 snd_pcm_period_elapsed(dma->substream);
689 /* set BUS_BUSY interrupt bit if any DMA is running */
690 /* call with spinlock held */
691 static void snd_atiixp_check_bus_busy(struct atiixp *chip)
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;
700 atiixp_update(chip, IER, ATI_REG_IER_SET_BUS_BUSY, bus_busy);
703 /* common trigger callback
704 * calling the lowlevel callbacks in it
706 static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
708 struct atiixp *chip = snd_pcm_substream_chip(substream);
709 struct atiixp_dma *dma = substream->runtime->private_data;
712 if (snd_BUG_ON(!dma->ops->enable_transfer ||
713 !dma->ops->flush_dma))
716 spin_lock(&chip->reg_lock);
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 +
725 dma->ops->enable_transfer(chip, 1);
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 +
736 dma->ops->enable_transfer(chip, 0);
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);
750 spin_unlock(&chip->reg_lock);
756 * lowlevel callbacks for each DMA type
758 * every callback is supposed to be called in chip->reg_lock spinlock
761 /* flush FIFO of analog OUT DMA */
762 static void atiixp_out_flush_dma(struct atiixp *chip)
764 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);
767 /* enable/disable analog OUT DMA */
768 static void atiixp_out_enable_dma(struct atiixp *chip, int on)
771 data = atiixp_read(chip, CMD);
773 if (data & ATI_REG_CMD_OUT_DMA_EN)
775 atiixp_out_flush_dma(chip);
776 data |= ATI_REG_CMD_OUT_DMA_EN;
778 data &= ~ATI_REG_CMD_OUT_DMA_EN;
779 atiixp_write(chip, CMD, data);
782 /* start/stop transfer over OUT DMA */
783 static void atiixp_out_enable_transfer(struct atiixp *chip, int on)
785 atiixp_update(chip, CMD, ATI_REG_CMD_SEND_EN,
786 on ? ATI_REG_CMD_SEND_EN : 0);
789 /* enable/disable analog IN DMA */
790 static void atiixp_in_enable_dma(struct atiixp *chip, int on)
792 atiixp_update(chip, CMD, ATI_REG_CMD_IN_DMA_EN,
793 on ? ATI_REG_CMD_IN_DMA_EN : 0);
796 /* start/stop analog IN DMA */
797 static void atiixp_in_enable_transfer(struct atiixp *chip, int 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 /* FIXME: this causes the endless loop */
804 /* wait until slot 3/4 are finished */
805 while ((atiixp_read(chip, COUNTER) &
806 ATI_REG_COUNTER_SLOT) != 5)
809 atiixp_write(chip, CMD, data);
812 atiixp_update(chip, CMD, ATI_REG_CMD_RECEIVE_EN, 0);
815 /* flush FIFO of analog IN DMA */
816 static void atiixp_in_flush_dma(struct atiixp *chip)
818 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_IN_FLUSH);
821 /* enable/disable SPDIF OUT DMA */
822 static void atiixp_spdif_enable_dma(struct atiixp *chip, int on)
824 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_DMA_EN,
825 on ? ATI_REG_CMD_SPDF_DMA_EN : 0);
828 /* start/stop SPDIF OUT DMA */
829 static void atiixp_spdif_enable_transfer(struct atiixp *chip, int on)
832 data = atiixp_read(chip, CMD);
834 data |= ATI_REG_CMD_SPDF_OUT_EN;
836 data &= ~ATI_REG_CMD_SPDF_OUT_EN;
837 atiixp_write(chip, CMD, data);
840 /* flush FIFO of SPDIF OUT DMA */
841 static void atiixp_spdif_flush_dma(struct atiixp *chip)
845 /* DMA off, transfer on */
846 atiixp_spdif_enable_dma(chip, 0);
847 atiixp_spdif_enable_transfer(chip, 1);
851 if (! (atiixp_read(chip, SPDF_DMA_DT_SIZE) & ATI_REG_DMA_FIFO_USED))
854 } while (timeout-- > 0);
856 atiixp_spdif_enable_transfer(chip, 0);
859 /* set up slots and formats for SPDIF OUT */
860 static int snd_atiixp_spdif_prepare(struct snd_pcm_substream *substream)
862 struct atiixp *chip = snd_pcm_substream_chip(substream);
864 spin_lock_irq(&chip->reg_lock);
865 if (chip->spdif_over_aclink) {
867 /* enable slots 10/11 */
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);
879 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK, 0);
880 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_SPDF, 0);
882 spin_unlock_irq(&chip->reg_lock);
886 /* set up slots and formats for analog OUT */
887 static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream)
889 struct atiixp *chip = snd_pcm_substream_chip(substream);
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) {
896 data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
897 ATI_REG_OUT_DMA_SLOT_BIT(11);
900 data |= ATI_REG_OUT_DMA_SLOT_BIT(7) |
901 ATI_REG_OUT_DMA_SLOT_BIT(8);
904 data |= ATI_REG_OUT_DMA_SLOT_BIT(6) |
905 ATI_REG_OUT_DMA_SLOT_BIT(9);
908 data |= ATI_REG_OUT_DMA_SLOT_BIT(3) |
909 ATI_REG_OUT_DMA_SLOT_BIT(4);
913 /* set output threshold */
914 data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
915 atiixp_write(chip, OUT_DMA_SLOT, data);
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);
922 * enable 6 channel re-ordering bit if needed
924 atiixp_update(chip, 6CH_REORDER, ATI_REG_6CH_REORDER_EN,
925 substream->runtime->channels >= 6 ? ATI_REG_6CH_REORDER_EN: 0);
927 spin_unlock_irq(&chip->reg_lock);
931 /* set up slots and formats for analog IN */
932 static int snd_atiixp_capture_prepare(struct snd_pcm_substream *substream)
934 struct atiixp *chip = snd_pcm_substream_chip(substream);
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);
945 * hw_params - allocate the buffer and set up buffer descriptors
947 static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream *substream,
948 struct snd_pcm_hw_params *hw_params)
950 struct atiixp *chip = snd_pcm_substream_chip(substream);
951 struct atiixp_dma *dma = substream->runtime->private_data;
954 dma->buf_addr = substream->runtime->dma_addr;
955 dma->buf_bytes = params_buffer_bytes(hw_params);
957 err = atiixp_build_dma_packets(chip, dma, substream,
958 params_periods(hw_params),
959 params_period_bytes(hw_params));
963 if (dma->ac97_pcm_type >= 0) {
964 struct ac97_pcm *pcm = chip->pcms[dma->ac97_pcm_type];
965 /* PCM is bound to AC97 codec(s)
966 * set up the AC97 codecs
968 if (dma->pcm_open_flag) {
969 snd_ac97_pcm_close(pcm);
970 dma->pcm_open_flag = 0;
972 err = snd_ac97_pcm_open(pcm, params_rate(hw_params),
973 params_channels(hw_params),
976 dma->pcm_open_flag = 1;
982 static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
984 struct atiixp *chip = snd_pcm_substream_chip(substream);
985 struct atiixp_dma *dma = substream->runtime->private_data;
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;
992 atiixp_clear_dma_packets(chip, dma, substream);
998 * pcm hardware definition, identical for all DMA types
1000 static const struct snd_pcm_hardware snd_atiixp_pcm_hw =
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,
1013 .buffer_bytes_max = 256 * 1024,
1014 .period_bytes_min = 32,
1015 .period_bytes_max = 128 * 1024,
1017 .periods_max = ATI_MAX_DESCRIPTORS,
1020 static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
1021 struct atiixp_dma *dma, int pcm_type)
1023 struct atiixp *chip = snd_pcm_substream_chip(substream);
1024 struct snd_pcm_runtime *runtime = substream->runtime;
1027 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
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);
1040 runtime->hw.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1042 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1045 runtime->private_data = dma;
1047 /* enable DMA bits */
1048 spin_lock_irq(&chip->reg_lock);
1049 dma->ops->enable_dma(chip, 1);
1050 spin_unlock_irq(&chip->reg_lock);
1056 static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
1057 struct atiixp_dma *dma)
1059 struct atiixp *chip = snd_pcm_substream_chip(substream);
1060 /* disable DMA bits */
1061 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
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;
1073 static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
1075 struct atiixp *chip = snd_pcm_substream_chip(substream);
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);
1083 substream->runtime->hw.channels_max = chip->max_channels;
1084 if (chip->max_channels > 2)
1085 /* channels must be even */
1086 snd_pcm_hw_constraint_step(substream->runtime, 0,
1087 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1091 static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
1093 struct atiixp *chip = snd_pcm_substream_chip(substream);
1095 mutex_lock(&chip->open_mutex);
1096 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1097 mutex_unlock(&chip->open_mutex);
1101 static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
1103 struct atiixp *chip = snd_pcm_substream_chip(substream);
1104 return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
1107 static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
1109 struct atiixp *chip = snd_pcm_substream_chip(substream);
1110 return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
1113 static int snd_atiixp_spdif_open(struct snd_pcm_substream *substream)
1115 struct atiixp *chip = snd_pcm_substream_chip(substream);
1117 mutex_lock(&chip->open_mutex);
1118 if (chip->spdif_over_aclink) /* share DMA_PLAYBACK */
1119 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 2);
1121 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_SPDIF], -1);
1122 mutex_unlock(&chip->open_mutex);
1126 static int snd_atiixp_spdif_close(struct snd_pcm_substream *substream)
1128 struct atiixp *chip = snd_pcm_substream_chip(substream);
1130 mutex_lock(&chip->open_mutex);
1131 if (chip->spdif_over_aclink)
1132 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1134 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_SPDIF]);
1135 mutex_unlock(&chip->open_mutex);
1140 static 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,
1151 static 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,
1161 /* SPDIF playback */
1162 static 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,
1172 static const struct ac97_pcm atiixp_pcm_defs[] = {
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)
1191 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1192 (1 << AC97_SLOT_PCM_RIGHT)
1196 /* S/PDIF OUT (optional) */
1201 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1202 (1 << AC97_SLOT_SPDIF_RIGHT2)
1208 static 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,
1217 static 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,
1226 static 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,
1236 static int snd_atiixp_pcm_new(struct atiixp *chip)
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;
1243 /* initialize constants */
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;
1249 /* assign AC97 pcm */
1250 if (chip->spdif_over_aclink)
1254 err = snd_ac97_pcm_assign(pbus, num_pcms, atiixp_pcm_defs);
1257 for (i = 0; i < num_pcms; i++)
1258 chip->pcms[i] = &pbus->pcms[i];
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;
1265 chip->max_channels = 4;
1268 /* PCM #0: analog I/O */
1269 err = snd_pcm_new(chip->card, "ATI IXP AC97",
1270 ATI_PCMDEV_ANALOG, 1, 1, &pcm);
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;
1279 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1280 &chip->pci->dev, 64*1024, 128*1024);
1282 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1283 snd_pcm_alt_chmaps, chip->max_channels, 0,
1287 chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1288 chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1290 /* no SPDIF support on codec? */
1291 if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)
1294 /* FIXME: non-48k sample rate doesn't work on my test machine with AD1888 */
1295 if (chip->pcms[ATI_PCM_SPDIF])
1296 chip->pcms[ATI_PCM_SPDIF]->rates = SNDRV_PCM_RATE_48000;
1298 /* PCM #1: spdif playback */
1299 err = snd_pcm_new(chip->card, "ATI IXP IEC958",
1300 ATI_PCMDEV_DIGITAL, 1, 0, &pcm);
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)");
1308 strcpy(pcm->name, "ATI IXP IEC958 (Direct)");
1309 chip->pcmdevs[ATI_PCMDEV_DIGITAL] = pcm;
1311 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1312 &chip->pci->dev, 64*1024, 128*1024);
1314 /* pre-select AC97 SPDIF slots 10/11 */
1315 for (i = 0; i < NUM_ATI_CODECS; i++) {
1317 snd_ac97_update_bits(chip->ac97[i],
1318 AC97_EXTENDED_STATUS,
1319 0x03 << 4, 0x03 << 4);
1330 static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
1332 struct atiixp *chip = dev_id;
1333 unsigned int status;
1335 status = atiixp_read(chip, ISR);
1340 /* process audio DMA */
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]);
1356 /* for codec detection */
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); /* disable the detected irqs */
1363 spin_unlock(&chip->reg_lock);
1367 atiixp_write(chip, ISR, status);
1374 * ac97 mixer section
1377 static const struct ac97_quirk ac97_quirks[] = {
1379 .subvendor = 0x103c,
1380 .subdevice = 0x006b,
1381 .name = "HP Pavilion ZV5030US",
1382 .type = AC97_TUNE_MUTE_LED
1385 .subvendor = 0x103c,
1386 .subdevice = 0x308b,
1387 .name = "HP nx6125",
1388 .type = AC97_TUNE_MUTE_LED
1391 .subvendor = 0x103c,
1392 .subdevice = 0x3091,
1393 .name = "unknown HP",
1394 .type = AC97_TUNE_MUTE_LED
1396 { } /* terminator */
1399 static int snd_atiixp_mixer_new(struct atiixp *chip, int clock,
1400 const char *quirk_override)
1402 struct snd_ac97_bus *pbus;
1403 struct snd_ac97_template ac97;
1406 static const struct snd_ac97_bus_ops ops = {
1407 .write = snd_atiixp_ac97_write,
1408 .read = snd_atiixp_ac97_read,
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,
1416 if (snd_atiixp_codec_detect(chip) < 0)
1419 err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus);
1422 pbus->clock = clock;
1423 chip->ac97_bus = pbus;
1426 for (i = 0; i < NUM_ATI_CODECS; i++) {
1427 if (chip->codec_not_ready_bits & codec_skip[i])
1429 memset(&ac97, 0, sizeof(ac97));
1430 ac97.private_data = chip;
1431 ac97.pci = chip->pci;
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]);
1438 chip->ac97[i] = NULL; /* to be sure */
1439 dev_dbg(chip->card->dev,
1440 "codec %d not available for audio\n", i);
1446 if (! codec_count) {
1447 dev_err(chip->card->dev, "no codec available\n");
1451 snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
1457 #ifdef CONFIG_PM_SLEEP
1461 static int snd_atiixp_suspend(struct device *dev)
1463 struct snd_card *card = dev_get_drvdata(dev);
1464 struct atiixp *chip = card->private_data;
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);
1475 static int snd_atiixp_resume(struct device *dev)
1477 struct snd_card *card = dev_get_drvdata(dev);
1478 struct atiixp *chip = card->private_data;
1481 snd_atiixp_aclink_reset(chip);
1482 snd_atiixp_chip_start(chip);
1484 for (i = 0; i < NUM_ATI_CODECS; i++)
1485 snd_ac97_resume(chip->ac97[i]);
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);
1498 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1502 static SIMPLE_DEV_PM_OPS(snd_atiixp_pm, snd_atiixp_suspend, snd_atiixp_resume);
1503 #define SND_ATIIXP_PM_OPS &snd_atiixp_pm
1505 #define SND_ATIIXP_PM_OPS NULL
1506 #endif /* CONFIG_PM_SLEEP */
1510 * proc interface for register dump
1513 static void snd_atiixp_proc_read(struct snd_info_entry *entry,
1514 struct snd_info_buffer *buffer)
1516 struct atiixp *chip = entry->private_data;
1519 for (i = 0; i < 256; i += 4)
1520 snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
1523 static void snd_atiixp_proc_init(struct atiixp *chip)
1525 snd_card_ro_proc_new(chip->card, "atiixp", chip, snd_atiixp_proc_read);
1533 static void snd_atiixp_free(struct snd_card *card)
1535 snd_atiixp_chip_stop(card->private_data);
1539 * constructor for chip instance
1541 static int snd_atiixp_init(struct snd_card *card, struct pci_dev *pci)
1543 struct atiixp *chip = card->private_data;
1546 err = pcim_enable_device(pci);
1550 spin_lock_init(&chip->reg_lock);
1551 mutex_init(&chip->open_mutex);
1555 err = pcim_iomap_regions(pci, 1 << 0, "ATI IXP AC97");
1558 chip->addr = pci_resource_start(pci, 0);
1559 chip->remap_addr = pcim_iomap_table(pci)[0];
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);
1566 chip->irq = pci->irq;
1567 card->sync_irq = chip->irq;
1568 card->private_free = snd_atiixp_free;
1569 pci_set_master(pci);
1575 static int __snd_atiixp_probe(struct pci_dev *pci,
1576 const struct pci_device_id *pci_id)
1578 struct snd_card *card;
1579 struct atiixp *chip;
1582 err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
1583 sizeof(*chip), &card);
1586 chip = card->private_data;
1588 strcpy(card->driver, spdif_aclink ? "ATIIXP" : "ATIIXP-SPDMA");
1589 strcpy(card->shortname, "ATI IXP");
1590 err = snd_atiixp_init(card, pci);
1594 err = snd_atiixp_aclink_reset(chip);
1598 chip->spdif_over_aclink = spdif_aclink;
1600 err = snd_atiixp_mixer_new(chip, ac97_clock, ac97_quirk);
1604 err = snd_atiixp_pcm_new(chip);
1608 snd_atiixp_proc_init(chip);
1610 snd_atiixp_chip_start(chip);
1612 snprintf(card->longname, sizeof(card->longname),
1613 "%s rev %x with %s at %#lx, irq %i", card->shortname,
1615 chip->ac97[0] ? snd_ac97_get_short_name(chip->ac97[0]) : "?",
1616 chip->addr, chip->irq);
1618 err = snd_card_register(card);
1622 pci_set_drvdata(pci, card);
1626 static int snd_atiixp_probe(struct pci_dev *pci,
1627 const struct pci_device_id *pci_id)
1629 return snd_card_free_on_error(&pci->dev, __snd_atiixp_probe(pci, pci_id));
1632 static struct pci_driver atiixp_driver = {
1633 .name = KBUILD_MODNAME,
1634 .id_table = snd_atiixp_ids,
1635 .probe = snd_atiixp_probe,
1637 .pm = SND_ATIIXP_PM_OPS,
1641 module_pci_driver(atiixp_driver);