2 * ALSA driver for ATI IXP 150/200/250/300 AC97 controllers
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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>
37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
38 MODULE_DESCRIPTION("ATI IXP AC97 controller");
39 MODULE_LICENSE("GPL");
40 MODULE_SUPPORTED_DEVICE("{{ATI,IXP150/200/250/300/400}}");
42 static int index
= SNDRV_DEFAULT_IDX1
; /* Index 0-MAX */
43 static char *id
= SNDRV_DEFAULT_STR1
; /* ID for this card */
44 static int ac97_clock
= 48000;
45 static char *ac97_quirk
;
46 static int spdif_aclink
= 1;
47 static int ac97_codec
= -1;
49 module_param(index
, int, 0444);
50 MODULE_PARM_DESC(index
, "Index value for ATI IXP controller.");
51 module_param(id
, charp
, 0444);
52 MODULE_PARM_DESC(id
, "ID string for ATI IXP controller.");
53 module_param(ac97_clock
, int, 0444);
54 MODULE_PARM_DESC(ac97_clock
, "AC'97 codec clock (default 48000Hz).");
55 module_param(ac97_quirk
, charp
, 0444);
56 MODULE_PARM_DESC(ac97_quirk
, "AC'97 workaround for strange hardware.");
57 module_param(ac97_codec
, int, 0444);
58 MODULE_PARM_DESC(ac97_codec
, "Specify codec instead of probing.");
59 module_param(spdif_aclink
, bool, 0444);
60 MODULE_PARM_DESC(spdif_aclink
, "S/PDIF over AC-link.");
62 /* just for backward compatibility */
64 module_param(enable
, bool, 0444);
70 #define ATI_REG_ISR 0x00 /* interrupt source */
71 #define ATI_REG_ISR_IN_XRUN (1U<<0)
72 #define ATI_REG_ISR_IN_STATUS (1U<<1)
73 #define ATI_REG_ISR_OUT_XRUN (1U<<2)
74 #define ATI_REG_ISR_OUT_STATUS (1U<<3)
75 #define ATI_REG_ISR_SPDF_XRUN (1U<<4)
76 #define ATI_REG_ISR_SPDF_STATUS (1U<<5)
77 #define ATI_REG_ISR_PHYS_INTR (1U<<8)
78 #define ATI_REG_ISR_PHYS_MISMATCH (1U<<9)
79 #define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10)
80 #define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11)
81 #define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12)
82 #define ATI_REG_ISR_NEW_FRAME (1U<<13)
84 #define ATI_REG_IER 0x04 /* interrupt enable */
85 #define ATI_REG_IER_IN_XRUN_EN (1U<<0)
86 #define ATI_REG_IER_IO_STATUS_EN (1U<<1)
87 #define ATI_REG_IER_OUT_XRUN_EN (1U<<2)
88 #define ATI_REG_IER_OUT_XRUN_COND (1U<<3)
89 #define ATI_REG_IER_SPDF_XRUN_EN (1U<<4)
90 #define ATI_REG_IER_SPDF_STATUS_EN (1U<<5)
91 #define ATI_REG_IER_PHYS_INTR_EN (1U<<8)
92 #define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9)
93 #define ATI_REG_IER_CODEC0_INTR_EN (1U<<10)
94 #define ATI_REG_IER_CODEC1_INTR_EN (1U<<11)
95 #define ATI_REG_IER_CODEC2_INTR_EN (1U<<12)
96 #define ATI_REG_IER_NEW_FRAME_EN (1U<<13) /* (RO */
97 #define ATI_REG_IER_SET_BUS_BUSY (1U<<14) /* (WO) audio is running */
99 #define ATI_REG_CMD 0x08 /* command */
100 #define ATI_REG_CMD_POWERDOWN (1U<<0)
101 #define ATI_REG_CMD_RECEIVE_EN (1U<<1)
102 #define ATI_REG_CMD_SEND_EN (1U<<2)
103 #define ATI_REG_CMD_STATUS_MEM (1U<<3)
104 #define ATI_REG_CMD_SPDF_OUT_EN (1U<<4)
105 #define ATI_REG_CMD_SPDF_STATUS_MEM (1U<<5)
106 #define ATI_REG_CMD_SPDF_THRESHOLD (3U<<6)
107 #define ATI_REG_CMD_SPDF_THRESHOLD_SHIFT 6
108 #define ATI_REG_CMD_IN_DMA_EN (1U<<8)
109 #define ATI_REG_CMD_OUT_DMA_EN (1U<<9)
110 #define ATI_REG_CMD_SPDF_DMA_EN (1U<<10)
111 #define ATI_REG_CMD_SPDF_OUT_STOPPED (1U<<11)
112 #define ATI_REG_CMD_SPDF_CONFIG_MASK (7U<<12)
113 #define ATI_REG_CMD_SPDF_CONFIG_34 (1U<<12)
114 #define ATI_REG_CMD_SPDF_CONFIG_78 (2U<<12)
115 #define ATI_REG_CMD_SPDF_CONFIG_69 (3U<<12)
116 #define ATI_REG_CMD_SPDF_CONFIG_01 (4U<<12)
117 #define ATI_REG_CMD_INTERLEAVE_SPDF (1U<<16)
118 #define ATI_REG_CMD_AUDIO_PRESENT (1U<<20)
119 #define ATI_REG_CMD_INTERLEAVE_IN (1U<<21)
120 #define ATI_REG_CMD_INTERLEAVE_OUT (1U<<22)
121 #define ATI_REG_CMD_LOOPBACK_EN (1U<<23)
122 #define ATI_REG_CMD_PACKED_DIS (1U<<24)
123 #define ATI_REG_CMD_BURST_EN (1U<<25)
124 #define ATI_REG_CMD_PANIC_EN (1U<<26)
125 #define ATI_REG_CMD_MODEM_PRESENT (1U<<27)
126 #define ATI_REG_CMD_ACLINK_ACTIVE (1U<<28)
127 #define ATI_REG_CMD_AC_SOFT_RESET (1U<<29)
128 #define ATI_REG_CMD_AC_SYNC (1U<<30)
129 #define ATI_REG_CMD_AC_RESET (1U<<31)
131 #define ATI_REG_PHYS_OUT_ADDR 0x0c
132 #define ATI_REG_PHYS_OUT_CODEC_MASK (3U<<0)
133 #define ATI_REG_PHYS_OUT_RW (1U<<2)
134 #define ATI_REG_PHYS_OUT_ADDR_EN (1U<<8)
135 #define ATI_REG_PHYS_OUT_ADDR_SHIFT 9
136 #define ATI_REG_PHYS_OUT_DATA_SHIFT 16
138 #define ATI_REG_PHYS_IN_ADDR 0x10
139 #define ATI_REG_PHYS_IN_READ_FLAG (1U<<8)
140 #define ATI_REG_PHYS_IN_ADDR_SHIFT 9
141 #define ATI_REG_PHYS_IN_DATA_SHIFT 16
143 #define ATI_REG_SLOTREQ 0x14
145 #define ATI_REG_COUNTER 0x18
146 #define ATI_REG_COUNTER_SLOT (3U<<0) /* slot # */
147 #define ATI_REG_COUNTER_BITCLOCK (31U<<8)
149 #define ATI_REG_IN_FIFO_THRESHOLD 0x1c
151 #define ATI_REG_IN_DMA_LINKPTR 0x20
152 #define ATI_REG_IN_DMA_DT_START 0x24 /* RO */
153 #define ATI_REG_IN_DMA_DT_NEXT 0x28 /* RO */
154 #define ATI_REG_IN_DMA_DT_CUR 0x2c /* RO */
155 #define ATI_REG_IN_DMA_DT_SIZE 0x30
157 #define ATI_REG_OUT_DMA_SLOT 0x34
158 #define ATI_REG_OUT_DMA_SLOT_BIT(x) (1U << ((x) - 3))
159 #define ATI_REG_OUT_DMA_SLOT_MASK 0x1ff
160 #define ATI_REG_OUT_DMA_THRESHOLD_MASK 0xf800
161 #define ATI_REG_OUT_DMA_THRESHOLD_SHIFT 11
163 #define ATI_REG_OUT_DMA_LINKPTR 0x38
164 #define ATI_REG_OUT_DMA_DT_START 0x3c /* RO */
165 #define ATI_REG_OUT_DMA_DT_NEXT 0x40 /* RO */
166 #define ATI_REG_OUT_DMA_DT_CUR 0x44 /* RO */
167 #define ATI_REG_OUT_DMA_DT_SIZE 0x48
169 #define ATI_REG_SPDF_CMD 0x4c
170 #define ATI_REG_SPDF_CMD_LFSR (1U<<4)
171 #define ATI_REG_SPDF_CMD_SINGLE_CH (1U<<5)
172 #define ATI_REG_SPDF_CMD_LFSR_ACC (0xff<<8) /* RO */
174 #define ATI_REG_SPDF_DMA_LINKPTR 0x50
175 #define ATI_REG_SPDF_DMA_DT_START 0x54 /* RO */
176 #define ATI_REG_SPDF_DMA_DT_NEXT 0x58 /* RO */
177 #define ATI_REG_SPDF_DMA_DT_CUR 0x5c /* RO */
178 #define ATI_REG_SPDF_DMA_DT_SIZE 0x60
180 #define ATI_REG_MODEM_MIRROR 0x7c
181 #define ATI_REG_AUDIO_MIRROR 0x80
183 #define ATI_REG_6CH_REORDER 0x84 /* reorder slots for 6ch */
184 #define ATI_REG_6CH_REORDER_EN (1U<<0) /* 3,4,7,8,6,9 -> 3,4,6,9,7,8 */
186 #define ATI_REG_FIFO_FLUSH 0x88
187 #define ATI_REG_FIFO_OUT_FLUSH (1U<<0)
188 #define ATI_REG_FIFO_IN_FLUSH (1U<<1)
191 #define ATI_REG_LINKPTR_EN (1U<<0)
193 /* [INT|OUT|SPDIF]_DMA_DT_SIZE */
194 #define ATI_REG_DMA_DT_SIZE (0xffffU<<0)
195 #define ATI_REG_DMA_FIFO_USED (0x1fU<<16)
196 #define ATI_REG_DMA_FIFO_FREE (0x1fU<<21)
197 #define ATI_REG_DMA_STATE (7U<<26)
200 #define ATI_MAX_DESCRIPTORS 256 /* max number of descriptor packets */
206 * DMA packate descriptor
209 struct atiixp_dma_desc
{
210 u32 addr
; /* DMA buffer address */
211 u16 status
; /* status bits */
212 u16 size
; /* size of the packet in dwords */
213 u32 next
; /* address of the next packet descriptor */
219 enum { ATI_DMA_PLAYBACK
, ATI_DMA_CAPTURE
, ATI_DMA_SPDIF
, NUM_ATI_DMAS
}; /* DMAs */
220 enum { ATI_PCM_OUT
, ATI_PCM_IN
, ATI_PCM_SPDIF
, NUM_ATI_PCMS
}; /* AC97 pcm slots */
221 enum { ATI_PCMDEV_ANALOG
, ATI_PCMDEV_DIGITAL
, NUM_ATI_PCMDEVS
}; /* pcm devices */
223 #define NUM_ATI_CODECS 3
227 * constants and callbacks for each DMA type
229 struct atiixp_dma_ops
{
230 int type
; /* ATI_DMA_XXX */
231 unsigned int llp_offset
; /* LINKPTR offset */
232 unsigned int dt_cur
; /* DT_CUR offset */
233 /* called from open callback */
234 void (*enable_dma
)(struct atiixp
*chip
, int on
);
235 /* called from trigger (START/STOP) */
236 void (*enable_transfer
)(struct atiixp
*chip
, int on
);
237 /* called from trigger (STOP only) */
238 void (*flush_dma
)(struct atiixp
*chip
);
245 const struct atiixp_dma_ops
*ops
;
246 struct snd_dma_buffer desc_buf
;
247 struct snd_pcm_substream
*substream
; /* assigned PCM substream */
248 unsigned int buf_addr
, buf_bytes
; /* DMA buffer address, bytes */
249 unsigned int period_bytes
, periods
;
254 int ac97_pcm_type
; /* index # of ac97_pcm to access, -1 = not used */
255 unsigned int saved_curptr
;
262 struct snd_card
*card
;
266 void __iomem
*remap_addr
;
269 struct snd_ac97_bus
*ac97_bus
;
270 struct snd_ac97
*ac97
[NUM_ATI_CODECS
];
274 struct atiixp_dma dmas
[NUM_ATI_DMAS
];
275 struct ac97_pcm
*pcms
[NUM_ATI_PCMS
];
276 struct snd_pcm
*pcmdevs
[NUM_ATI_PCMDEVS
];
278 int max_channels
; /* max. channels for PCM out */
280 unsigned int codec_not_ready_bits
; /* for codec detection */
282 int spdif_over_aclink
; /* passed from the module option */
283 struct mutex open_mutex
; /* playback open mutex */
289 static struct pci_device_id snd_atiixp_ids
[] = {
290 { 0x1002, 0x4341, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 }, /* SB200 */
291 { 0x1002, 0x4361, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 }, /* SB300 */
292 { 0x1002, 0x4370, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 }, /* SB400 */
296 MODULE_DEVICE_TABLE(pci
, snd_atiixp_ids
);
298 static struct snd_pci_quirk atiixp_quirks
[] __devinitdata
= {
299 SND_PCI_QUIRK(0x15bd, 0x3100, "DFI RS482", 0),
308 * update the bits of the given register.
309 * return 1 if the bits changed.
311 static int snd_atiixp_update_bits(struct atiixp
*chip
, unsigned int reg
,
312 unsigned int mask
, unsigned int value
)
314 void __iomem
*addr
= chip
->remap_addr
+ reg
;
315 unsigned int data
, old_data
;
316 old_data
= data
= readl(addr
);
319 if (old_data
== data
)
326 * macros for easy use
328 #define atiixp_write(chip,reg,value) \
329 writel(value, chip->remap_addr + ATI_REG_##reg)
330 #define atiixp_read(chip,reg) \
331 readl(chip->remap_addr + ATI_REG_##reg)
332 #define atiixp_update(chip,reg,mask,val) \
333 snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
336 * handling DMA packets
338 * we allocate a linear buffer for the DMA, and split it to each packet.
339 * in a future version, a scatter-gather buffer should be implemented.
342 #define ATI_DESC_LIST_SIZE \
343 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc))
346 * build packets ring for the given buffer size.
348 * IXP handles the buffer descriptors, which are connected as a linked
349 * list. although we can change the list dynamically, in this version,
350 * a static RING of buffer descriptors is used.
352 * the ring is built in this function, and is set up to the hardware.
354 static int atiixp_build_dma_packets(struct atiixp
*chip
, struct atiixp_dma
*dma
,
355 struct snd_pcm_substream
*substream
,
356 unsigned int periods
,
357 unsigned int period_bytes
)
363 if (periods
> ATI_MAX_DESCRIPTORS
)
366 if (dma
->desc_buf
.area
== NULL
) {
367 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV
,
368 snd_dma_pci_data(chip
->pci
),
372 dma
->period_bytes
= dma
->periods
= 0; /* clear */
375 if (dma
->periods
== periods
&& dma
->period_bytes
== period_bytes
)
378 /* reset DMA before changing the descriptor table */
379 spin_lock_irqsave(&chip
->reg_lock
, flags
);
380 writel(0, chip
->remap_addr
+ dma
->ops
->llp_offset
);
381 dma
->ops
->enable_dma(chip
, 0);
382 dma
->ops
->enable_dma(chip
, 1);
383 spin_unlock_irqrestore(&chip
->reg_lock
, flags
);
385 /* fill the entries */
386 addr
= (u32
)substream
->runtime
->dma_addr
;
387 desc_addr
= (u32
)dma
->desc_buf
.addr
;
388 for (i
= 0; i
< periods
; i
++) {
389 struct atiixp_dma_desc
*desc
;
390 desc
= &((struct atiixp_dma_desc
*)dma
->desc_buf
.area
)[i
];
391 desc
->addr
= cpu_to_le32(addr
);
393 desc
->size
= period_bytes
>> 2; /* in dwords */
394 desc_addr
+= sizeof(struct atiixp_dma_desc
);
395 if (i
== periods
- 1)
396 desc
->next
= cpu_to_le32((u32
)dma
->desc_buf
.addr
);
398 desc
->next
= cpu_to_le32(desc_addr
);
399 addr
+= period_bytes
;
402 writel((u32
)dma
->desc_buf
.addr
| ATI_REG_LINKPTR_EN
,
403 chip
->remap_addr
+ dma
->ops
->llp_offset
);
405 dma
->period_bytes
= period_bytes
;
406 dma
->periods
= periods
;
412 * remove the ring buffer and release it if assigned
414 static void atiixp_clear_dma_packets(struct atiixp
*chip
, struct atiixp_dma
*dma
,
415 struct snd_pcm_substream
*substream
)
417 if (dma
->desc_buf
.area
) {
418 writel(0, chip
->remap_addr
+ dma
->ops
->llp_offset
);
419 snd_dma_free_pages(&dma
->desc_buf
);
420 dma
->desc_buf
.area
= NULL
;
427 static int snd_atiixp_acquire_codec(struct atiixp
*chip
)
431 while (atiixp_read(chip
, PHYS_OUT_ADDR
) & ATI_REG_PHYS_OUT_ADDR_EN
) {
433 snd_printk(KERN_WARNING
"atiixp: codec acquire timeout\n");
441 static unsigned short snd_atiixp_codec_read(struct atiixp
*chip
, unsigned short codec
, unsigned short reg
)
446 if (snd_atiixp_acquire_codec(chip
) < 0)
448 data
= (reg
<< ATI_REG_PHYS_OUT_ADDR_SHIFT
) |
449 ATI_REG_PHYS_OUT_ADDR_EN
|
450 ATI_REG_PHYS_OUT_RW
|
452 atiixp_write(chip
, PHYS_OUT_ADDR
, data
);
453 if (snd_atiixp_acquire_codec(chip
) < 0)
457 data
= atiixp_read(chip
, PHYS_IN_ADDR
);
458 if (data
& ATI_REG_PHYS_IN_READ_FLAG
)
459 return data
>> ATI_REG_PHYS_IN_DATA_SHIFT
;
462 /* time out may happen during reset */
464 snd_printk(KERN_WARNING
"atiixp: codec read timeout (reg %x)\n", reg
);
469 static void snd_atiixp_codec_write(struct atiixp
*chip
, unsigned short codec
,
470 unsigned short reg
, unsigned short val
)
474 if (snd_atiixp_acquire_codec(chip
) < 0)
476 data
= ((unsigned int)val
<< ATI_REG_PHYS_OUT_DATA_SHIFT
) |
477 ((unsigned int)reg
<< ATI_REG_PHYS_OUT_ADDR_SHIFT
) |
478 ATI_REG_PHYS_OUT_ADDR_EN
| codec
;
479 atiixp_write(chip
, PHYS_OUT_ADDR
, data
);
483 static unsigned short snd_atiixp_ac97_read(struct snd_ac97
*ac97
,
486 struct atiixp
*chip
= ac97
->private_data
;
487 return snd_atiixp_codec_read(chip
, ac97
->num
, reg
);
491 static void snd_atiixp_ac97_write(struct snd_ac97
*ac97
, unsigned short reg
,
494 struct atiixp
*chip
= ac97
->private_data
;
495 snd_atiixp_codec_write(chip
, ac97
->num
, reg
, val
);
501 static int snd_atiixp_aclink_reset(struct atiixp
*chip
)
505 /* reset powerdoewn */
506 if (atiixp_update(chip
, CMD
, ATI_REG_CMD_POWERDOWN
, 0))
509 /* perform a software reset */
510 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SOFT_RESET
, ATI_REG_CMD_AC_SOFT_RESET
);
511 atiixp_read(chip
, CMD
);
513 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SOFT_RESET
, 0);
516 while (! (atiixp_read(chip
, CMD
) & ATI_REG_CMD_ACLINK_ACTIVE
)) {
517 /* do a hard reset */
518 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
,
519 ATI_REG_CMD_AC_SYNC
);
520 atiixp_read(chip
, CMD
);
522 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_RESET
, ATI_REG_CMD_AC_RESET
);
524 snd_printk(KERN_ERR
"atiixp: codec reset timeout\n");
529 /* deassert RESET and assert SYNC to make sure */
530 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
,
531 ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
);
537 static int snd_atiixp_aclink_down(struct atiixp
*chip
)
539 // if (atiixp_read(chip, MODEM_MIRROR) & 0x1) /* modem running, too? */
541 atiixp_update(chip
, CMD
,
542 ATI_REG_CMD_POWERDOWN
| ATI_REG_CMD_AC_RESET
,
543 ATI_REG_CMD_POWERDOWN
);
549 * auto-detection of codecs
551 * the IXP chip can generate interrupts for the non-existing codecs.
552 * NEW_FRAME interrupt is used to make sure that the interrupt is generated
553 * even if all three codecs are connected.
556 #define ALL_CODEC_NOT_READY \
557 (ATI_REG_ISR_CODEC0_NOT_READY |\
558 ATI_REG_ISR_CODEC1_NOT_READY |\
559 ATI_REG_ISR_CODEC2_NOT_READY)
560 #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
562 static int __devinit
ac97_probing_bugs(struct pci_dev
*pci
)
564 const struct snd_pci_quirk
*q
;
566 q
= snd_pci_quirk_lookup(pci
, atiixp_quirks
);
568 snd_printdd(KERN_INFO
"Atiixp quirk for %s. "
569 "Forcing codec %d\n", q
->name
, q
->value
);
572 /* this hardware doesn't need workarounds. Probe for codec */
576 static int __devinit
snd_atiixp_codec_detect(struct atiixp
*chip
)
580 chip
->codec_not_ready_bits
= 0;
581 if (ac97_codec
== -1)
582 ac97_codec
= ac97_probing_bugs(chip
->pci
);
583 if (ac97_codec
>= 0) {
584 chip
->codec_not_ready_bits
|=
585 CODEC_CHECK_BITS
^ (1 << (ac97_codec
+ 10));
589 atiixp_write(chip
, IER
, CODEC_CHECK_BITS
);
590 /* wait for the interrupts */
592 while (timeout
-- > 0) {
594 if (chip
->codec_not_ready_bits
)
597 atiixp_write(chip
, IER
, 0); /* disable irqs */
599 if ((chip
->codec_not_ready_bits
& ALL_CODEC_NOT_READY
) == ALL_CODEC_NOT_READY
) {
600 snd_printk(KERN_ERR
"atiixp: no codec detected!\n");
608 * enable DMA and irqs
610 static int snd_atiixp_chip_start(struct atiixp
*chip
)
614 /* set up spdif, enable burst mode */
615 reg
= atiixp_read(chip
, CMD
);
616 reg
|= 0x02 << ATI_REG_CMD_SPDF_THRESHOLD_SHIFT
;
617 reg
|= ATI_REG_CMD_BURST_EN
;
618 atiixp_write(chip
, CMD
, reg
);
620 reg
= atiixp_read(chip
, SPDF_CMD
);
621 reg
&= ~(ATI_REG_SPDF_CMD_LFSR
|ATI_REG_SPDF_CMD_SINGLE_CH
);
622 atiixp_write(chip
, SPDF_CMD
, reg
);
624 /* clear all interrupt source */
625 atiixp_write(chip
, ISR
, 0xffffffff);
627 atiixp_write(chip
, IER
,
628 ATI_REG_IER_IO_STATUS_EN
|
629 ATI_REG_IER_IN_XRUN_EN
|
630 ATI_REG_IER_OUT_XRUN_EN
|
631 ATI_REG_IER_SPDF_XRUN_EN
|
632 ATI_REG_IER_SPDF_STATUS_EN
);
638 * disable DMA and IRQs
640 static int snd_atiixp_chip_stop(struct atiixp
*chip
)
642 /* clear interrupt source */
643 atiixp_write(chip
, ISR
, atiixp_read(chip
, ISR
));
645 atiixp_write(chip
, IER
, 0);
655 * pointer callback simplly reads XXX_DMA_DT_CUR register as the current
656 * position. when SG-buffer is implemented, the offset must be calculated
659 static snd_pcm_uframes_t
snd_atiixp_pcm_pointer(struct snd_pcm_substream
*substream
)
661 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
662 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
663 struct atiixp_dma
*dma
= runtime
->private_data
;
668 curptr
= readl(chip
->remap_addr
+ dma
->ops
->dt_cur
);
669 if (curptr
< dma
->buf_addr
)
671 curptr
-= dma
->buf_addr
;
672 if (curptr
>= dma
->buf_bytes
)
674 return bytes_to_frames(runtime
, curptr
);
676 snd_printd("atiixp: invalid DMA pointer read 0x%x (buf=%x)\n",
677 readl(chip
->remap_addr
+ dma
->ops
->dt_cur
), dma
->buf_addr
);
682 * XRUN detected, and stop the PCM substream
684 static void snd_atiixp_xrun_dma(struct atiixp
*chip
, struct atiixp_dma
*dma
)
686 if (! dma
->substream
|| ! dma
->running
)
688 snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma
->ops
->type
);
689 snd_pcm_stop(dma
->substream
, SNDRV_PCM_STATE_XRUN
);
693 * the period ack. update the substream.
695 static void snd_atiixp_update_dma(struct atiixp
*chip
, struct atiixp_dma
*dma
)
697 if (! dma
->substream
|| ! dma
->running
)
699 snd_pcm_period_elapsed(dma
->substream
);
702 /* set BUS_BUSY interrupt bit if any DMA is running */
703 /* call with spinlock held */
704 static void snd_atiixp_check_bus_busy(struct atiixp
*chip
)
706 unsigned int bus_busy
;
707 if (atiixp_read(chip
, CMD
) & (ATI_REG_CMD_SEND_EN
|
708 ATI_REG_CMD_RECEIVE_EN
|
709 ATI_REG_CMD_SPDF_OUT_EN
))
710 bus_busy
= ATI_REG_IER_SET_BUS_BUSY
;
713 atiixp_update(chip
, IER
, ATI_REG_IER_SET_BUS_BUSY
, bus_busy
);
716 /* common trigger callback
717 * calling the lowlevel callbacks in it
719 static int snd_atiixp_pcm_trigger(struct snd_pcm_substream
*substream
, int cmd
)
721 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
722 struct atiixp_dma
*dma
= substream
->runtime
->private_data
;
725 snd_assert(dma
->ops
->enable_transfer
&& dma
->ops
->flush_dma
, return -EINVAL
);
727 spin_lock(&chip
->reg_lock
);
729 case SNDRV_PCM_TRIGGER_START
:
730 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE
:
731 case SNDRV_PCM_TRIGGER_RESUME
:
732 dma
->ops
->enable_transfer(chip
, 1);
736 case SNDRV_PCM_TRIGGER_STOP
:
737 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
738 case SNDRV_PCM_TRIGGER_SUSPEND
:
739 dma
->ops
->enable_transfer(chip
, 0);
741 dma
->suspended
= cmd
== SNDRV_PCM_TRIGGER_SUSPEND
;
748 snd_atiixp_check_bus_busy(chip
);
749 if (cmd
== SNDRV_PCM_TRIGGER_STOP
) {
750 dma
->ops
->flush_dma(chip
);
751 snd_atiixp_check_bus_busy(chip
);
754 spin_unlock(&chip
->reg_lock
);
760 * lowlevel callbacks for each DMA type
762 * every callback is supposed to be called in chip->reg_lock spinlock
765 /* flush FIFO of analog OUT DMA */
766 static void atiixp_out_flush_dma(struct atiixp
*chip
)
768 atiixp_write(chip
, FIFO_FLUSH
, ATI_REG_FIFO_OUT_FLUSH
);
771 /* enable/disable analog OUT DMA */
772 static void atiixp_out_enable_dma(struct atiixp
*chip
, int on
)
775 data
= atiixp_read(chip
, CMD
);
777 if (data
& ATI_REG_CMD_OUT_DMA_EN
)
779 atiixp_out_flush_dma(chip
);
780 data
|= ATI_REG_CMD_OUT_DMA_EN
;
782 data
&= ~ATI_REG_CMD_OUT_DMA_EN
;
783 atiixp_write(chip
, CMD
, data
);
786 /* start/stop transfer over OUT DMA */
787 static void atiixp_out_enable_transfer(struct atiixp
*chip
, int on
)
789 atiixp_update(chip
, CMD
, ATI_REG_CMD_SEND_EN
,
790 on
? ATI_REG_CMD_SEND_EN
: 0);
793 /* enable/disable analog IN DMA */
794 static void atiixp_in_enable_dma(struct atiixp
*chip
, int on
)
796 atiixp_update(chip
, CMD
, ATI_REG_CMD_IN_DMA_EN
,
797 on
? ATI_REG_CMD_IN_DMA_EN
: 0);
800 /* start/stop analog IN DMA */
801 static void atiixp_in_enable_transfer(struct atiixp
*chip
, int on
)
804 unsigned int data
= atiixp_read(chip
, CMD
);
805 if (! (data
& ATI_REG_CMD_RECEIVE_EN
)) {
806 data
|= ATI_REG_CMD_RECEIVE_EN
;
807 #if 0 /* FIXME: this causes the endless loop */
808 /* wait until slot 3/4 are finished */
809 while ((atiixp_read(chip
, COUNTER
) &
810 ATI_REG_COUNTER_SLOT
) != 5)
813 atiixp_write(chip
, CMD
, data
);
816 atiixp_update(chip
, CMD
, ATI_REG_CMD_RECEIVE_EN
, 0);
819 /* flush FIFO of analog IN DMA */
820 static void atiixp_in_flush_dma(struct atiixp
*chip
)
822 atiixp_write(chip
, FIFO_FLUSH
, ATI_REG_FIFO_IN_FLUSH
);
825 /* enable/disable SPDIF OUT DMA */
826 static void atiixp_spdif_enable_dma(struct atiixp
*chip
, int on
)
828 atiixp_update(chip
, CMD
, ATI_REG_CMD_SPDF_DMA_EN
,
829 on
? ATI_REG_CMD_SPDF_DMA_EN
: 0);
832 /* start/stop SPDIF OUT DMA */
833 static void atiixp_spdif_enable_transfer(struct atiixp
*chip
, int on
)
836 data
= atiixp_read(chip
, CMD
);
838 data
|= ATI_REG_CMD_SPDF_OUT_EN
;
840 data
&= ~ATI_REG_CMD_SPDF_OUT_EN
;
841 atiixp_write(chip
, CMD
, data
);
844 /* flush FIFO of SPDIF OUT DMA */
845 static void atiixp_spdif_flush_dma(struct atiixp
*chip
)
849 /* DMA off, transfer on */
850 atiixp_spdif_enable_dma(chip
, 0);
851 atiixp_spdif_enable_transfer(chip
, 1);
855 if (! (atiixp_read(chip
, SPDF_DMA_DT_SIZE
) & ATI_REG_DMA_FIFO_USED
))
858 } while (timeout
-- > 0);
860 atiixp_spdif_enable_transfer(chip
, 0);
863 /* set up slots and formats for SPDIF OUT */
864 static int snd_atiixp_spdif_prepare(struct snd_pcm_substream
*substream
)
866 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
868 spin_lock_irq(&chip
->reg_lock
);
869 if (chip
->spdif_over_aclink
) {
871 /* enable slots 10/11 */
872 atiixp_update(chip
, CMD
, ATI_REG_CMD_SPDF_CONFIG_MASK
,
873 ATI_REG_CMD_SPDF_CONFIG_01
);
874 data
= atiixp_read(chip
, OUT_DMA_SLOT
) & ~ATI_REG_OUT_DMA_SLOT_MASK
;
875 data
|= ATI_REG_OUT_DMA_SLOT_BIT(10) |
876 ATI_REG_OUT_DMA_SLOT_BIT(11);
877 data
|= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT
;
878 atiixp_write(chip
, OUT_DMA_SLOT
, data
);
879 atiixp_update(chip
, CMD
, ATI_REG_CMD_INTERLEAVE_OUT
,
880 substream
->runtime
->format
== SNDRV_PCM_FORMAT_S16_LE
?
881 ATI_REG_CMD_INTERLEAVE_OUT
: 0);
883 atiixp_update(chip
, CMD
, ATI_REG_CMD_SPDF_CONFIG_MASK
, 0);
884 atiixp_update(chip
, CMD
, ATI_REG_CMD_INTERLEAVE_SPDF
, 0);
886 spin_unlock_irq(&chip
->reg_lock
);
890 /* set up slots and formats for analog OUT */
891 static int snd_atiixp_playback_prepare(struct snd_pcm_substream
*substream
)
893 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
896 spin_lock_irq(&chip
->reg_lock
);
897 data
= atiixp_read(chip
, OUT_DMA_SLOT
) & ~ATI_REG_OUT_DMA_SLOT_MASK
;
898 switch (substream
->runtime
->channels
) {
900 data
|= ATI_REG_OUT_DMA_SLOT_BIT(10) |
901 ATI_REG_OUT_DMA_SLOT_BIT(11);
904 data
|= ATI_REG_OUT_DMA_SLOT_BIT(7) |
905 ATI_REG_OUT_DMA_SLOT_BIT(8);
908 data
|= ATI_REG_OUT_DMA_SLOT_BIT(6) |
909 ATI_REG_OUT_DMA_SLOT_BIT(9);
912 data
|= ATI_REG_OUT_DMA_SLOT_BIT(3) |
913 ATI_REG_OUT_DMA_SLOT_BIT(4);
917 /* set output threshold */
918 data
|= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT
;
919 atiixp_write(chip
, OUT_DMA_SLOT
, data
);
921 atiixp_update(chip
, CMD
, ATI_REG_CMD_INTERLEAVE_OUT
,
922 substream
->runtime
->format
== SNDRV_PCM_FORMAT_S16_LE
?
923 ATI_REG_CMD_INTERLEAVE_OUT
: 0);
926 * enable 6 channel re-ordering bit if needed
928 atiixp_update(chip
, 6CH_REORDER
, ATI_REG_6CH_REORDER_EN
,
929 substream
->runtime
->channels
>= 6 ? ATI_REG_6CH_REORDER_EN
: 0);
931 spin_unlock_irq(&chip
->reg_lock
);
935 /* set up slots and formats for analog IN */
936 static int snd_atiixp_capture_prepare(struct snd_pcm_substream
*substream
)
938 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
940 spin_lock_irq(&chip
->reg_lock
);
941 atiixp_update(chip
, CMD
, ATI_REG_CMD_INTERLEAVE_IN
,
942 substream
->runtime
->format
== SNDRV_PCM_FORMAT_S16_LE
?
943 ATI_REG_CMD_INTERLEAVE_IN
: 0);
944 spin_unlock_irq(&chip
->reg_lock
);
949 * hw_params - allocate the buffer and set up buffer descriptors
951 static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream
*substream
,
952 struct snd_pcm_hw_params
*hw_params
)
954 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
955 struct atiixp_dma
*dma
= substream
->runtime
->private_data
;
958 err
= snd_pcm_lib_malloc_pages(substream
, params_buffer_bytes(hw_params
));
961 dma
->buf_addr
= substream
->runtime
->dma_addr
;
962 dma
->buf_bytes
= params_buffer_bytes(hw_params
);
964 err
= atiixp_build_dma_packets(chip
, dma
, substream
,
965 params_periods(hw_params
),
966 params_period_bytes(hw_params
));
970 if (dma
->ac97_pcm_type
>= 0) {
971 struct ac97_pcm
*pcm
= chip
->pcms
[dma
->ac97_pcm_type
];
972 /* PCM is bound to AC97 codec(s)
973 * set up the AC97 codecs
975 if (dma
->pcm_open_flag
) {
976 snd_ac97_pcm_close(pcm
);
977 dma
->pcm_open_flag
= 0;
979 err
= snd_ac97_pcm_open(pcm
, params_rate(hw_params
),
980 params_channels(hw_params
),
983 dma
->pcm_open_flag
= 1;
989 static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream
*substream
)
991 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
992 struct atiixp_dma
*dma
= substream
->runtime
->private_data
;
994 if (dma
->pcm_open_flag
) {
995 struct ac97_pcm
*pcm
= chip
->pcms
[dma
->ac97_pcm_type
];
996 snd_ac97_pcm_close(pcm
);
997 dma
->pcm_open_flag
= 0;
999 atiixp_clear_dma_packets(chip
, dma
, substream
);
1000 snd_pcm_lib_free_pages(substream
);
1006 * pcm hardware definition, identical for all DMA types
1008 static struct snd_pcm_hardware snd_atiixp_pcm_hw
=
1010 .info
= (SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
1011 SNDRV_PCM_INFO_BLOCK_TRANSFER
|
1012 SNDRV_PCM_INFO_PAUSE
|
1013 SNDRV_PCM_INFO_RESUME
|
1014 SNDRV_PCM_INFO_MMAP_VALID
),
1015 .formats
= SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S32_LE
,
1016 .rates
= SNDRV_PCM_RATE_48000
,
1021 .buffer_bytes_max
= 256 * 1024,
1022 .period_bytes_min
= 32,
1023 .period_bytes_max
= 128 * 1024,
1025 .periods_max
= ATI_MAX_DESCRIPTORS
,
1028 static int snd_atiixp_pcm_open(struct snd_pcm_substream
*substream
,
1029 struct atiixp_dma
*dma
, int pcm_type
)
1031 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1032 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
1035 snd_assert(dma
->ops
&& dma
->ops
->enable_dma
, return -EINVAL
);
1039 dma
->substream
= substream
;
1040 runtime
->hw
= snd_atiixp_pcm_hw
;
1041 dma
->ac97_pcm_type
= pcm_type
;
1042 if (pcm_type
>= 0) {
1043 runtime
->hw
.rates
= chip
->pcms
[pcm_type
]->rates
;
1044 snd_pcm_limit_hw_rates(runtime
);
1047 runtime
->hw
.formats
= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
;
1049 if ((err
= snd_pcm_hw_constraint_integer(runtime
, SNDRV_PCM_HW_PARAM_PERIODS
)) < 0)
1051 runtime
->private_data
= dma
;
1053 /* enable DMA bits */
1054 spin_lock_irq(&chip
->reg_lock
);
1055 dma
->ops
->enable_dma(chip
, 1);
1056 spin_unlock_irq(&chip
->reg_lock
);
1062 static int snd_atiixp_pcm_close(struct snd_pcm_substream
*substream
,
1063 struct atiixp_dma
*dma
)
1065 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1066 /* disable DMA bits */
1067 snd_assert(dma
->ops
&& dma
->ops
->enable_dma
, return -EINVAL
);
1068 spin_lock_irq(&chip
->reg_lock
);
1069 dma
->ops
->enable_dma(chip
, 0);
1070 spin_unlock_irq(&chip
->reg_lock
);
1071 dma
->substream
= NULL
;
1078 static int snd_atiixp_playback_open(struct snd_pcm_substream
*substream
)
1080 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1083 mutex_lock(&chip
->open_mutex
);
1084 err
= snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
], 0);
1085 mutex_unlock(&chip
->open_mutex
);
1088 substream
->runtime
->hw
.channels_max
= chip
->max_channels
;
1089 if (chip
->max_channels
> 2)
1090 /* channels must be even */
1091 snd_pcm_hw_constraint_step(substream
->runtime
, 0,
1092 SNDRV_PCM_HW_PARAM_CHANNELS
, 2);
1096 static int snd_atiixp_playback_close(struct snd_pcm_substream
*substream
)
1098 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1100 mutex_lock(&chip
->open_mutex
);
1101 err
= snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1102 mutex_unlock(&chip
->open_mutex
);
1106 static int snd_atiixp_capture_open(struct snd_pcm_substream
*substream
)
1108 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1109 return snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_CAPTURE
], 1);
1112 static int snd_atiixp_capture_close(struct snd_pcm_substream
*substream
)
1114 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1115 return snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
1118 static int snd_atiixp_spdif_open(struct snd_pcm_substream
*substream
)
1120 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1122 mutex_lock(&chip
->open_mutex
);
1123 if (chip
->spdif_over_aclink
) /* share DMA_PLAYBACK */
1124 err
= snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
], 2);
1126 err
= snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_SPDIF
], -1);
1127 mutex_unlock(&chip
->open_mutex
);
1131 static int snd_atiixp_spdif_close(struct snd_pcm_substream
*substream
)
1133 struct atiixp
*chip
= snd_pcm_substream_chip(substream
);
1135 mutex_lock(&chip
->open_mutex
);
1136 if (chip
->spdif_over_aclink
)
1137 err
= snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1139 err
= snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_SPDIF
]);
1140 mutex_unlock(&chip
->open_mutex
);
1145 static struct snd_pcm_ops snd_atiixp_playback_ops
= {
1146 .open
= snd_atiixp_playback_open
,
1147 .close
= snd_atiixp_playback_close
,
1148 .ioctl
= snd_pcm_lib_ioctl
,
1149 .hw_params
= snd_atiixp_pcm_hw_params
,
1150 .hw_free
= snd_atiixp_pcm_hw_free
,
1151 .prepare
= snd_atiixp_playback_prepare
,
1152 .trigger
= snd_atiixp_pcm_trigger
,
1153 .pointer
= snd_atiixp_pcm_pointer
,
1157 static struct snd_pcm_ops snd_atiixp_capture_ops
= {
1158 .open
= snd_atiixp_capture_open
,
1159 .close
= snd_atiixp_capture_close
,
1160 .ioctl
= snd_pcm_lib_ioctl
,
1161 .hw_params
= snd_atiixp_pcm_hw_params
,
1162 .hw_free
= snd_atiixp_pcm_hw_free
,
1163 .prepare
= snd_atiixp_capture_prepare
,
1164 .trigger
= snd_atiixp_pcm_trigger
,
1165 .pointer
= snd_atiixp_pcm_pointer
,
1168 /* SPDIF playback */
1169 static struct snd_pcm_ops snd_atiixp_spdif_ops
= {
1170 .open
= snd_atiixp_spdif_open
,
1171 .close
= snd_atiixp_spdif_close
,
1172 .ioctl
= snd_pcm_lib_ioctl
,
1173 .hw_params
= snd_atiixp_pcm_hw_params
,
1174 .hw_free
= snd_atiixp_pcm_hw_free
,
1175 .prepare
= snd_atiixp_spdif_prepare
,
1176 .trigger
= snd_atiixp_pcm_trigger
,
1177 .pointer
= snd_atiixp_pcm_pointer
,
1180 static struct ac97_pcm atiixp_pcm_defs
[] __devinitdata
= {
1185 .slots
= (1 << AC97_SLOT_PCM_LEFT
) |
1186 (1 << AC97_SLOT_PCM_RIGHT
) |
1187 (1 << AC97_SLOT_PCM_CENTER
) |
1188 (1 << AC97_SLOT_PCM_SLEFT
) |
1189 (1 << AC97_SLOT_PCM_SRIGHT
) |
1190 (1 << AC97_SLOT_LFE
)
1199 .slots
= (1 << AC97_SLOT_PCM_LEFT
) |
1200 (1 << AC97_SLOT_PCM_RIGHT
)
1204 /* S/PDIF OUT (optional) */
1209 .slots
= (1 << AC97_SLOT_SPDIF_LEFT2
) |
1210 (1 << AC97_SLOT_SPDIF_RIGHT2
)
1216 static struct atiixp_dma_ops snd_atiixp_playback_dma_ops
= {
1217 .type
= ATI_DMA_PLAYBACK
,
1218 .llp_offset
= ATI_REG_OUT_DMA_LINKPTR
,
1219 .dt_cur
= ATI_REG_OUT_DMA_DT_CUR
,
1220 .enable_dma
= atiixp_out_enable_dma
,
1221 .enable_transfer
= atiixp_out_enable_transfer
,
1222 .flush_dma
= atiixp_out_flush_dma
,
1225 static struct atiixp_dma_ops snd_atiixp_capture_dma_ops
= {
1226 .type
= ATI_DMA_CAPTURE
,
1227 .llp_offset
= ATI_REG_IN_DMA_LINKPTR
,
1228 .dt_cur
= ATI_REG_IN_DMA_DT_CUR
,
1229 .enable_dma
= atiixp_in_enable_dma
,
1230 .enable_transfer
= atiixp_in_enable_transfer
,
1231 .flush_dma
= atiixp_in_flush_dma
,
1234 static struct atiixp_dma_ops snd_atiixp_spdif_dma_ops
= {
1235 .type
= ATI_DMA_SPDIF
,
1236 .llp_offset
= ATI_REG_SPDF_DMA_LINKPTR
,
1237 .dt_cur
= ATI_REG_SPDF_DMA_DT_CUR
,
1238 .enable_dma
= atiixp_spdif_enable_dma
,
1239 .enable_transfer
= atiixp_spdif_enable_transfer
,
1240 .flush_dma
= atiixp_spdif_flush_dma
,
1244 static int __devinit
snd_atiixp_pcm_new(struct atiixp
*chip
)
1246 struct snd_pcm
*pcm
;
1247 struct snd_ac97_bus
*pbus
= chip
->ac97_bus
;
1248 int err
, i
, num_pcms
;
1250 /* initialize constants */
1251 chip
->dmas
[ATI_DMA_PLAYBACK
].ops
= &snd_atiixp_playback_dma_ops
;
1252 chip
->dmas
[ATI_DMA_CAPTURE
].ops
= &snd_atiixp_capture_dma_ops
;
1253 if (! chip
->spdif_over_aclink
)
1254 chip
->dmas
[ATI_DMA_SPDIF
].ops
= &snd_atiixp_spdif_dma_ops
;
1256 /* assign AC97 pcm */
1257 if (chip
->spdif_over_aclink
)
1261 err
= snd_ac97_pcm_assign(pbus
, num_pcms
, atiixp_pcm_defs
);
1264 for (i
= 0; i
< num_pcms
; i
++)
1265 chip
->pcms
[i
] = &pbus
->pcms
[i
];
1267 chip
->max_channels
= 2;
1268 if (pbus
->pcms
[ATI_PCM_OUT
].r
[0].slots
& (1 << AC97_SLOT_PCM_SLEFT
)) {
1269 if (pbus
->pcms
[ATI_PCM_OUT
].r
[0].slots
& (1 << AC97_SLOT_LFE
))
1270 chip
->max_channels
= 6;
1272 chip
->max_channels
= 4;
1275 /* PCM #0: analog I/O */
1276 err
= snd_pcm_new(chip
->card
, "ATI IXP AC97",
1277 ATI_PCMDEV_ANALOG
, 1, 1, &pcm
);
1280 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_PLAYBACK
, &snd_atiixp_playback_ops
);
1281 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_CAPTURE
, &snd_atiixp_capture_ops
);
1282 pcm
->private_data
= chip
;
1283 strcpy(pcm
->name
, "ATI IXP AC97");
1284 chip
->pcmdevs
[ATI_PCMDEV_ANALOG
] = pcm
;
1286 snd_pcm_lib_preallocate_pages_for_all(pcm
, SNDRV_DMA_TYPE_DEV
,
1287 snd_dma_pci_data(chip
->pci
),
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_lib_preallocate_pages_for_all(pcm
, SNDRV_DMA_TYPE_DEV
,
1312 snd_dma_pci_data(chip
->pci
),
1315 /* pre-select AC97 SPDIF slots 10/11 */
1316 for (i
= 0; i
< NUM_ATI_CODECS
; i
++) {
1318 snd_ac97_update_bits(chip
->ac97
[i
],
1319 AC97_EXTENDED_STATUS
,
1320 0x03 << 4, 0x03 << 4);
1331 static irqreturn_t
snd_atiixp_interrupt(int irq
, void *dev_id
)
1333 struct atiixp
*chip
= dev_id
;
1334 unsigned int status
;
1336 status
= atiixp_read(chip
, ISR
);
1341 /* process audio DMA */
1342 if (status
& ATI_REG_ISR_OUT_XRUN
)
1343 snd_atiixp_xrun_dma(chip
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1344 else if (status
& ATI_REG_ISR_OUT_STATUS
)
1345 snd_atiixp_update_dma(chip
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1346 if (status
& ATI_REG_ISR_IN_XRUN
)
1347 snd_atiixp_xrun_dma(chip
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
1348 else if (status
& ATI_REG_ISR_IN_STATUS
)
1349 snd_atiixp_update_dma(chip
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
1350 if (! chip
->spdif_over_aclink
) {
1351 if (status
& ATI_REG_ISR_SPDF_XRUN
)
1352 snd_atiixp_xrun_dma(chip
, &chip
->dmas
[ATI_DMA_SPDIF
]);
1353 else if (status
& ATI_REG_ISR_SPDF_STATUS
)
1354 snd_atiixp_update_dma(chip
, &chip
->dmas
[ATI_DMA_SPDIF
]);
1357 /* for codec detection */
1358 if (status
& CODEC_CHECK_BITS
) {
1359 unsigned int detected
;
1360 detected
= status
& CODEC_CHECK_BITS
;
1361 spin_lock(&chip
->reg_lock
);
1362 chip
->codec_not_ready_bits
|= detected
;
1363 atiixp_update(chip
, IER
, detected
, 0); /* disable the detected irqs */
1364 spin_unlock(&chip
->reg_lock
);
1368 atiixp_write(chip
, ISR
, status
);
1375 * ac97 mixer section
1378 static struct ac97_quirk ac97_quirks
[] __devinitdata
= {
1380 .subvendor
= 0x103c,
1381 .subdevice
= 0x006b,
1382 .name
= "HP Pavilion ZV5030US",
1383 .type
= AC97_TUNE_MUTE_LED
1386 .subvendor
= 0x103c,
1387 .subdevice
= 0x308b,
1388 .name
= "HP nx6125",
1389 .type
= AC97_TUNE_MUTE_LED
1391 { } /* terminator */
1394 static int __devinit
snd_atiixp_mixer_new(struct atiixp
*chip
, int clock
,
1395 const char *quirk_override
)
1397 struct snd_ac97_bus
*pbus
;
1398 struct snd_ac97_template ac97
;
1401 static struct snd_ac97_bus_ops ops
= {
1402 .write
= snd_atiixp_ac97_write
,
1403 .read
= snd_atiixp_ac97_read
,
1405 static unsigned int codec_skip
[NUM_ATI_CODECS
] = {
1406 ATI_REG_ISR_CODEC0_NOT_READY
,
1407 ATI_REG_ISR_CODEC1_NOT_READY
,
1408 ATI_REG_ISR_CODEC2_NOT_READY
,
1411 if (snd_atiixp_codec_detect(chip
) < 0)
1414 if ((err
= snd_ac97_bus(chip
->card
, 0, &ops
, chip
, &pbus
)) < 0)
1416 pbus
->clock
= clock
;
1417 chip
->ac97_bus
= pbus
;
1420 for (i
= 0; i
< NUM_ATI_CODECS
; i
++) {
1421 if (chip
->codec_not_ready_bits
& codec_skip
[i
])
1423 memset(&ac97
, 0, sizeof(ac97
));
1424 ac97
.private_data
= chip
;
1425 ac97
.pci
= chip
->pci
;
1427 ac97
.scaps
= AC97_SCAP_SKIP_MODEM
| AC97_SCAP_POWER_SAVE
;
1428 if (! chip
->spdif_over_aclink
)
1429 ac97
.scaps
|= AC97_SCAP_NO_SPDIF
;
1430 if ((err
= snd_ac97_mixer(pbus
, &ac97
, &chip
->ac97
[i
])) < 0) {
1431 chip
->ac97
[i
] = NULL
; /* to be sure */
1432 snd_printdd("atiixp: codec %d not available for audio\n", i
);
1438 if (! codec_count
) {
1439 snd_printk(KERN_ERR
"atiixp: no codec available\n");
1443 snd_ac97_tune_hardware(chip
->ac97
[0], ac97_quirks
, quirk_override
);
1453 static int snd_atiixp_suspend(struct pci_dev
*pci
, pm_message_t state
)
1455 struct snd_card
*card
= pci_get_drvdata(pci
);
1456 struct atiixp
*chip
= card
->private_data
;
1459 snd_power_change_state(card
, SNDRV_CTL_POWER_D3hot
);
1460 for (i
= 0; i
< NUM_ATI_PCMDEVS
; i
++)
1461 if (chip
->pcmdevs
[i
]) {
1462 struct atiixp_dma
*dma
= &chip
->dmas
[i
];
1463 if (dma
->substream
&& dma
->running
)
1464 dma
->saved_curptr
= readl(chip
->remap_addr
+
1466 snd_pcm_suspend_all(chip
->pcmdevs
[i
]);
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
);
1473 pci_disable_device(pci
);
1474 pci_save_state(pci
);
1475 pci_set_power_state(pci
, pci_choose_state(pci
, state
));
1479 static int snd_atiixp_resume(struct pci_dev
*pci
)
1481 struct snd_card
*card
= pci_get_drvdata(pci
);
1482 struct atiixp
*chip
= card
->private_data
;
1485 pci_set_power_state(pci
, PCI_D0
);
1486 pci_restore_state(pci
);
1487 if (pci_enable_device(pci
) < 0) {
1488 printk(KERN_ERR
"atiixp: pci_enable_device failed, "
1489 "disabling device\n");
1490 snd_card_disconnect(card
);
1493 pci_set_master(pci
);
1495 snd_atiixp_aclink_reset(chip
);
1496 snd_atiixp_chip_start(chip
);
1498 for (i
= 0; i
< NUM_ATI_CODECS
; i
++)
1499 snd_ac97_resume(chip
->ac97
[i
]);
1501 for (i
= 0; i
< NUM_ATI_PCMDEVS
; i
++)
1502 if (chip
->pcmdevs
[i
]) {
1503 struct atiixp_dma
*dma
= &chip
->dmas
[i
];
1504 if (dma
->substream
&& dma
->suspended
) {
1505 dma
->ops
->enable_dma(chip
, 1);
1506 dma
->substream
->ops
->prepare(dma
->substream
);
1507 writel((u32
)dma
->desc_buf
.addr
| ATI_REG_LINKPTR_EN
,
1508 chip
->remap_addr
+ dma
->ops
->llp_offset
);
1509 writel(dma
->saved_curptr
, chip
->remap_addr
+
1514 snd_power_change_state(card
, SNDRV_CTL_POWER_D0
);
1517 #endif /* CONFIG_PM */
1520 #ifdef CONFIG_PROC_FS
1522 * proc interface for register dump
1525 static void snd_atiixp_proc_read(struct snd_info_entry
*entry
,
1526 struct snd_info_buffer
*buffer
)
1528 struct atiixp
*chip
= entry
->private_data
;
1531 for (i
= 0; i
< 256; i
+= 4)
1532 snd_iprintf(buffer
, "%02x: %08x\n", i
, readl(chip
->remap_addr
+ i
));
1535 static void __devinit
snd_atiixp_proc_init(struct atiixp
*chip
)
1537 struct snd_info_entry
*entry
;
1539 if (! snd_card_proc_new(chip
->card
, "atiixp", &entry
))
1540 snd_info_set_text_ops(entry
, chip
, snd_atiixp_proc_read
);
1542 #else /* !CONFIG_PROC_FS */
1543 #define snd_atiixp_proc_init(chip)
1551 static int snd_atiixp_free(struct atiixp
*chip
)
1555 snd_atiixp_chip_stop(chip
);
1559 free_irq(chip
->irq
, chip
);
1560 if (chip
->remap_addr
)
1561 iounmap(chip
->remap_addr
);
1562 pci_release_regions(chip
->pci
);
1563 pci_disable_device(chip
->pci
);
1568 static int snd_atiixp_dev_free(struct snd_device
*device
)
1570 struct atiixp
*chip
= device
->device_data
;
1571 return snd_atiixp_free(chip
);
1575 * constructor for chip instance
1577 static int __devinit
snd_atiixp_create(struct snd_card
*card
,
1578 struct pci_dev
*pci
,
1579 struct atiixp
**r_chip
)
1581 static struct snd_device_ops ops
= {
1582 .dev_free
= snd_atiixp_dev_free
,
1584 struct atiixp
*chip
;
1587 if ((err
= pci_enable_device(pci
)) < 0)
1590 chip
= kzalloc(sizeof(*chip
), GFP_KERNEL
);
1592 pci_disable_device(pci
);
1596 spin_lock_init(&chip
->reg_lock
);
1597 mutex_init(&chip
->open_mutex
);
1601 if ((err
= pci_request_regions(pci
, "ATI IXP AC97")) < 0) {
1602 pci_disable_device(pci
);
1606 chip
->addr
= pci_resource_start(pci
, 0);
1607 chip
->remap_addr
= ioremap_nocache(chip
->addr
, pci_resource_len(pci
, 0));
1608 if (chip
->remap_addr
== NULL
) {
1609 snd_printk(KERN_ERR
"AC'97 space ioremap problem\n");
1610 snd_atiixp_free(chip
);
1614 if (request_irq(pci
->irq
, snd_atiixp_interrupt
, IRQF_SHARED
,
1615 card
->shortname
, chip
)) {
1616 snd_printk(KERN_ERR
"unable to grab IRQ %d\n", pci
->irq
);
1617 snd_atiixp_free(chip
);
1620 chip
->irq
= pci
->irq
;
1621 pci_set_master(pci
);
1622 synchronize_irq(chip
->irq
);
1624 if ((err
= snd_device_new(card
, SNDRV_DEV_LOWLEVEL
, chip
, &ops
)) < 0) {
1625 snd_atiixp_free(chip
);
1629 snd_card_set_dev(card
, &pci
->dev
);
1636 static int __devinit
snd_atiixp_probe(struct pci_dev
*pci
,
1637 const struct pci_device_id
*pci_id
)
1639 struct snd_card
*card
;
1640 struct atiixp
*chip
;
1643 card
= snd_card_new(index
, id
, THIS_MODULE
, 0);
1647 strcpy(card
->driver
, spdif_aclink
? "ATIIXP" : "ATIIXP-SPDMA");
1648 strcpy(card
->shortname
, "ATI IXP");
1649 if ((err
= snd_atiixp_create(card
, pci
, &chip
)) < 0)
1651 card
->private_data
= chip
;
1653 if ((err
= snd_atiixp_aclink_reset(chip
)) < 0)
1656 chip
->spdif_over_aclink
= spdif_aclink
;
1658 if ((err
= snd_atiixp_mixer_new(chip
, ac97_clock
, ac97_quirk
)) < 0)
1661 if ((err
= snd_atiixp_pcm_new(chip
)) < 0)
1664 snd_atiixp_proc_init(chip
);
1666 snd_atiixp_chip_start(chip
);
1668 snprintf(card
->longname
, sizeof(card
->longname
),
1669 "%s rev %x with %s at %#lx, irq %i", card
->shortname
,
1671 chip
->ac97
[0] ? snd_ac97_get_short_name(chip
->ac97
[0]) : "?",
1672 chip
->addr
, chip
->irq
);
1674 if ((err
= snd_card_register(card
)) < 0)
1677 pci_set_drvdata(pci
, card
);
1681 snd_card_free(card
);
1685 static void __devexit
snd_atiixp_remove(struct pci_dev
*pci
)
1687 snd_card_free(pci_get_drvdata(pci
));
1688 pci_set_drvdata(pci
, NULL
);
1691 static struct pci_driver driver
= {
1692 .name
= "ATI IXP AC97 controller",
1693 .id_table
= snd_atiixp_ids
,
1694 .probe
= snd_atiixp_probe
,
1695 .remove
= __devexit_p(snd_atiixp_remove
),
1697 .suspend
= snd_atiixp_suspend
,
1698 .resume
= snd_atiixp_resume
,
1703 static int __init
alsa_card_atiixp_init(void)
1705 return pci_register_driver(&driver
);
1708 static void __exit
alsa_card_atiixp_exit(void)
1710 pci_unregister_driver(&driver
);
1713 module_init(alsa_card_atiixp_init
)
1714 module_exit(alsa_card_atiixp_exit
)