2 * ALSA driver for ATI IXP 150/200/250 AC97 modem 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
22 #include <sound/driver.h>
24 #include <linux/delay.h>
25 #include <linux/interrupt.h>
26 #include <linux/init.h>
27 #include <linux/pci.h>
28 #include <linux/slab.h>
29 #include <linux/moduleparam.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 MC97 controller");
39 MODULE_LICENSE("GPL");
40 MODULE_SUPPORTED_DEVICE("{{ATI,IXP150/200/250}}");
42 static int index
[SNDRV_CARDS
] = {[0 ... (SNDRV_CARDS
- 1)] = -2}; /* Exclude the first card */
43 static char *id
[SNDRV_CARDS
] = SNDRV_DEFAULT_STR
; /* ID for this card */
44 static int enable
[SNDRV_CARDS
] = SNDRV_DEFAULT_ENABLE_PNP
; /* Enable this card */
45 static int ac97_clock
[SNDRV_CARDS
] = {[0 ... (SNDRV_CARDS
- 1)] = 48000};
47 module_param_array(index
, int, NULL
, 0444);
48 MODULE_PARM_DESC(index
, "Index value for ATI IXP controller.");
49 module_param_array(id
, charp
, NULL
, 0444);
50 MODULE_PARM_DESC(id
, "ID string for ATI IXP controller.");
51 module_param_array(enable
, bool, NULL
, 0444);
52 MODULE_PARM_DESC(enable
, "Enable audio part of ATI IXP controller.");
53 module_param_array(ac97_clock
, int, NULL
, 0444);
54 MODULE_PARM_DESC(ac97_clock
, "AC'97 codec clock (default 48000Hz).");
60 #define ATI_REG_ISR 0x00 /* interrupt source */
61 #define ATI_REG_ISR_MODEM_IN_XRUN (1U<<0)
62 #define ATI_REG_ISR_MODEM_IN_STATUS (1U<<1)
63 #define ATI_REG_ISR_MODEM_OUT1_XRUN (1U<<2)
64 #define ATI_REG_ISR_MODEM_OUT1_STATUS (1U<<3)
65 #define ATI_REG_ISR_MODEM_OUT2_XRUN (1U<<4)
66 #define ATI_REG_ISR_MODEM_OUT2_STATUS (1U<<5)
67 #define ATI_REG_ISR_MODEM_OUT3_XRUN (1U<<6)
68 #define ATI_REG_ISR_MODEM_OUT3_STATUS (1U<<7)
69 #define ATI_REG_ISR_PHYS_INTR (1U<<8)
70 #define ATI_REG_ISR_PHYS_MISMATCH (1U<<9)
71 #define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10)
72 #define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11)
73 #define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12)
74 #define ATI_REG_ISR_NEW_FRAME (1U<<13)
75 #define ATI_REG_ISR_MODEM_GPIO_DATA (1U<<14)
77 #define ATI_REG_IER 0x04 /* interrupt enable */
78 #define ATI_REG_IER_MODEM_IN_XRUN_EN (1U<<0)
79 #define ATI_REG_IER_MODEM_STATUS_EN (1U<<1)
80 #define ATI_REG_IER_MODEM_OUT1_XRUN_EN (1U<<2)
81 #define ATI_REG_IER_MODEM_OUT2_XRUN_EN (1U<<4)
82 #define ATI_REG_IER_MODEM_OUT3_XRUN_EN (1U<<6)
83 #define ATI_REG_IER_PHYS_INTR_EN (1U<<8)
84 #define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9)
85 #define ATI_REG_IER_CODEC0_INTR_EN (1U<<10)
86 #define ATI_REG_IER_CODEC1_INTR_EN (1U<<11)
87 #define ATI_REG_IER_CODEC2_INTR_EN (1U<<12)
88 #define ATI_REG_IER_NEW_FRAME_EN (1U<<13) /* (RO */
89 #define ATI_REG_IER_MODEM_GPIO_DATA_EN (1U<<14) /* (WO) modem is running */
90 #define ATI_REG_IER_MODEM_SET_BUS_BUSY (1U<<15)
92 #define ATI_REG_CMD 0x08 /* command */
93 #define ATI_REG_CMD_POWERDOWN (1U<<0)
94 #define ATI_REG_CMD_MODEM_RECEIVE_EN (1U<<1) /* modem only */
95 #define ATI_REG_CMD_MODEM_SEND1_EN (1U<<2) /* modem only */
96 #define ATI_REG_CMD_MODEM_SEND2_EN (1U<<3) /* modem only */
97 #define ATI_REG_CMD_MODEM_SEND3_EN (1U<<4) /* modem only */
98 #define ATI_REG_CMD_MODEM_STATUS_MEM (1U<<5) /* modem only */
99 #define ATI_REG_CMD_MODEM_IN_DMA_EN (1U<<8) /* modem only */
100 #define ATI_REG_CMD_MODEM_OUT_DMA1_EN (1U<<9) /* modem only */
101 #define ATI_REG_CMD_MODEM_OUT_DMA2_EN (1U<<10) /* modem only */
102 #define ATI_REG_CMD_MODEM_OUT_DMA3_EN (1U<<11) /* modem only */
103 #define ATI_REG_CMD_AUDIO_PRESENT (1U<<20)
104 #define ATI_REG_CMD_MODEM_GPIO_THRU_DMA (1U<<22) /* modem only */
105 #define ATI_REG_CMD_LOOPBACK_EN (1U<<23)
106 #define ATI_REG_CMD_PACKED_DIS (1U<<24)
107 #define ATI_REG_CMD_BURST_EN (1U<<25)
108 #define ATI_REG_CMD_PANIC_EN (1U<<26)
109 #define ATI_REG_CMD_MODEM_PRESENT (1U<<27)
110 #define ATI_REG_CMD_ACLINK_ACTIVE (1U<<28)
111 #define ATI_REG_CMD_AC_SOFT_RESET (1U<<29)
112 #define ATI_REG_CMD_AC_SYNC (1U<<30)
113 #define ATI_REG_CMD_AC_RESET (1U<<31)
115 #define ATI_REG_PHYS_OUT_ADDR 0x0c
116 #define ATI_REG_PHYS_OUT_CODEC_MASK (3U<<0)
117 #define ATI_REG_PHYS_OUT_RW (1U<<2)
118 #define ATI_REG_PHYS_OUT_ADDR_EN (1U<<8)
119 #define ATI_REG_PHYS_OUT_ADDR_SHIFT 9
120 #define ATI_REG_PHYS_OUT_DATA_SHIFT 16
122 #define ATI_REG_PHYS_IN_ADDR 0x10
123 #define ATI_REG_PHYS_IN_READ_FLAG (1U<<8)
124 #define ATI_REG_PHYS_IN_ADDR_SHIFT 9
125 #define ATI_REG_PHYS_IN_DATA_SHIFT 16
127 #define ATI_REG_SLOTREQ 0x14
129 #define ATI_REG_COUNTER 0x18
130 #define ATI_REG_COUNTER_SLOT (3U<<0) /* slot # */
131 #define ATI_REG_COUNTER_BITCLOCK (31U<<8)
133 #define ATI_REG_IN_FIFO_THRESHOLD 0x1c
135 #define ATI_REG_MODEM_IN_DMA_LINKPTR 0x20
136 #define ATI_REG_MODEM_IN_DMA_DT_START 0x24 /* RO */
137 #define ATI_REG_MODEM_IN_DMA_DT_NEXT 0x28 /* RO */
138 #define ATI_REG_MODEM_IN_DMA_DT_CUR 0x2c /* RO */
139 #define ATI_REG_MODEM_IN_DMA_DT_SIZE 0x30
140 #define ATI_REG_MODEM_OUT_FIFO 0x34 /* output threshold */
141 #define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK (0xf<<16)
142 #define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT 16
143 #define ATI_REG_MODEM_OUT_DMA1_LINKPTR 0x38
144 #define ATI_REG_MODEM_OUT_DMA2_LINKPTR 0x3c
145 #define ATI_REG_MODEM_OUT_DMA3_LINKPTR 0x40
146 #define ATI_REG_MODEM_OUT_DMA1_DT_START 0x44
147 #define ATI_REG_MODEM_OUT_DMA1_DT_NEXT 0x48
148 #define ATI_REG_MODEM_OUT_DMA1_DT_CUR 0x4c
149 #define ATI_REG_MODEM_OUT_DMA2_DT_START 0x50
150 #define ATI_REG_MODEM_OUT_DMA2_DT_NEXT 0x54
151 #define ATI_REG_MODEM_OUT_DMA2_DT_CUR 0x58
152 #define ATI_REG_MODEM_OUT_DMA3_DT_START 0x5c
153 #define ATI_REG_MODEM_OUT_DMA3_DT_NEXT 0x60
154 #define ATI_REG_MODEM_OUT_DMA3_DT_CUR 0x64
155 #define ATI_REG_MODEM_OUT_DMA12_DT_SIZE 0x68
156 #define ATI_REG_MODEM_OUT_DMA3_DT_SIZE 0x6c
157 #define ATI_REG_MODEM_OUT_FIFO_USED 0x70
158 #define ATI_REG_MODEM_OUT_GPIO 0x74
159 #define ATI_REG_MODEM_OUT_GPIO_EN 1
160 #define ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT 5
161 #define ATI_REG_MODEM_IN_GPIO 0x78
163 #define ATI_REG_MODEM_MIRROR 0x7c
164 #define ATI_REG_AUDIO_MIRROR 0x80
166 #define ATI_REG_MODEM_FIFO_FLUSH 0x88
167 #define ATI_REG_MODEM_FIFO_OUT1_FLUSH (1U<<0)
168 #define ATI_REG_MODEM_FIFO_OUT2_FLUSH (1U<<1)
169 #define ATI_REG_MODEM_FIFO_OUT3_FLUSH (1U<<2)
170 #define ATI_REG_MODEM_FIFO_IN_FLUSH (1U<<3)
173 #define ATI_REG_LINKPTR_EN (1U<<0)
175 #define ATI_MAX_DESCRIPTORS 256 /* max number of descriptor packets */
181 typedef struct snd_atiixp atiixp_t
;
182 typedef struct snd_atiixp_dma atiixp_dma_t
;
183 typedef struct snd_atiixp_dma_ops atiixp_dma_ops_t
;
187 * DMA packate descriptor
190 typedef struct atiixp_dma_desc
{
191 u32 addr
; /* DMA buffer address */
192 u16 status
; /* status bits */
193 u16 size
; /* size of the packet in dwords */
194 u32 next
; /* address of the next packet descriptor */
200 enum { ATI_DMA_PLAYBACK
, ATI_DMA_CAPTURE
, NUM_ATI_DMAS
}; /* DMAs */
201 enum { ATI_PCM_OUT
, ATI_PCM_IN
, NUM_ATI_PCMS
}; /* AC97 pcm slots */
202 enum { ATI_PCMDEV_ANALOG
, NUM_ATI_PCMDEVS
}; /* pcm devices */
204 #define NUM_ATI_CODECS 3
208 * constants and callbacks for each DMA type
210 struct snd_atiixp_dma_ops
{
211 int type
; /* ATI_DMA_XXX */
212 unsigned int llp_offset
; /* LINKPTR offset */
213 unsigned int dt_cur
; /* DT_CUR offset */
214 void (*enable_dma
)(atiixp_t
*chip
, int on
); /* called from open callback */
215 void (*enable_transfer
)(atiixp_t
*chip
, int on
); /* called from trigger (START/STOP) */
216 void (*flush_dma
)(atiixp_t
*chip
); /* called from trigger (STOP only) */
222 struct snd_atiixp_dma
{
223 const atiixp_dma_ops_t
*ops
;
224 struct snd_dma_buffer desc_buf
;
225 snd_pcm_substream_t
*substream
; /* assigned PCM substream */
226 unsigned int buf_addr
, buf_bytes
; /* DMA buffer address, bytes */
227 unsigned int period_bytes
, periods
;
231 int ac97_pcm_type
; /* index # of ac97_pcm to access, -1 = not used */
241 struct resource
*res
; /* memory i/o */
243 void __iomem
*remap_addr
;
246 ac97_bus_t
*ac97_bus
;
247 ac97_t
*ac97
[NUM_ATI_CODECS
];
251 atiixp_dma_t dmas
[NUM_ATI_DMAS
];
252 struct ac97_pcm
*pcms
[NUM_ATI_PCMS
];
253 snd_pcm_t
*pcmdevs
[NUM_ATI_PCMDEVS
];
255 int max_channels
; /* max. channels for PCM out */
257 unsigned int codec_not_ready_bits
; /* for codec detection */
259 int spdif_over_aclink
; /* passed from the module option */
260 struct semaphore open_mutex
; /* playback open mutex */
266 static struct pci_device_id snd_atiixp_ids
[] = {
267 { 0x1002, 0x434d, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 }, /* SB200 */
271 MODULE_DEVICE_TABLE(pci
, snd_atiixp_ids
);
279 * update the bits of the given register.
280 * return 1 if the bits changed.
282 static int snd_atiixp_update_bits(atiixp_t
*chip
, unsigned int reg
,
283 unsigned int mask
, unsigned int value
)
285 void __iomem
*addr
= chip
->remap_addr
+ reg
;
286 unsigned int data
, old_data
;
287 old_data
= data
= readl(addr
);
290 if (old_data
== data
)
297 * macros for easy use
299 #define atiixp_write(chip,reg,value) \
300 writel(value, chip->remap_addr + ATI_REG_##reg)
301 #define atiixp_read(chip,reg) \
302 readl(chip->remap_addr + ATI_REG_##reg)
303 #define atiixp_update(chip,reg,mask,val) \
304 snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
306 /* delay for one tick */
307 #define do_delay() do { \
308 set_current_state(TASK_UNINTERRUPTIBLE); \
309 schedule_timeout(1); \
314 * handling DMA packets
316 * we allocate a linear buffer for the DMA, and split it to each packet.
317 * in a future version, a scatter-gather buffer should be implemented.
320 #define ATI_DESC_LIST_SIZE \
321 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(atiixp_dma_desc_t))
324 * build packets ring for the given buffer size.
326 * IXP handles the buffer descriptors, which are connected as a linked
327 * list. although we can change the list dynamically, in this version,
328 * a static RING of buffer descriptors is used.
330 * the ring is built in this function, and is set up to the hardware.
332 static int atiixp_build_dma_packets(atiixp_t
*chip
, atiixp_dma_t
*dma
,
333 snd_pcm_substream_t
*substream
,
334 unsigned int periods
,
335 unsigned int period_bytes
)
341 if (periods
> ATI_MAX_DESCRIPTORS
)
344 if (dma
->desc_buf
.area
== NULL
) {
345 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV
, snd_dma_pci_data(chip
->pci
),
346 ATI_DESC_LIST_SIZE
, &dma
->desc_buf
) < 0)
348 dma
->period_bytes
= dma
->periods
= 0; /* clear */
351 if (dma
->periods
== periods
&& dma
->period_bytes
== period_bytes
)
354 /* reset DMA before changing the descriptor table */
355 spin_lock_irqsave(&chip
->reg_lock
, flags
);
356 writel(0, chip
->remap_addr
+ dma
->ops
->llp_offset
);
357 dma
->ops
->enable_dma(chip
, 0);
358 dma
->ops
->enable_dma(chip
, 1);
359 spin_unlock_irqrestore(&chip
->reg_lock
, flags
);
361 /* fill the entries */
362 addr
= (u32
)substream
->runtime
->dma_addr
;
363 desc_addr
= (u32
)dma
->desc_buf
.addr
;
364 for (i
= 0; i
< periods
; i
++) {
365 atiixp_dma_desc_t
*desc
= &((atiixp_dma_desc_t
*)dma
->desc_buf
.area
)[i
];
366 desc
->addr
= cpu_to_le32(addr
);
368 desc
->size
= period_bytes
>> 2; /* in dwords */
369 desc_addr
+= sizeof(atiixp_dma_desc_t
);
370 if (i
== periods
- 1)
371 desc
->next
= cpu_to_le32((u32
)dma
->desc_buf
.addr
);
373 desc
->next
= cpu_to_le32(desc_addr
);
374 addr
+= period_bytes
;
377 writel((u32
)dma
->desc_buf
.addr
| ATI_REG_LINKPTR_EN
,
378 chip
->remap_addr
+ dma
->ops
->llp_offset
);
380 dma
->period_bytes
= period_bytes
;
381 dma
->periods
= periods
;
387 * remove the ring buffer and release it if assigned
389 static void atiixp_clear_dma_packets(atiixp_t
*chip
, atiixp_dma_t
*dma
, snd_pcm_substream_t
*substream
)
391 if (dma
->desc_buf
.area
) {
392 writel(0, chip
->remap_addr
+ dma
->ops
->llp_offset
);
393 snd_dma_free_pages(&dma
->desc_buf
);
394 dma
->desc_buf
.area
= NULL
;
401 static int snd_atiixp_acquire_codec(atiixp_t
*chip
)
405 while (atiixp_read(chip
, PHYS_OUT_ADDR
) & ATI_REG_PHYS_OUT_ADDR_EN
) {
407 snd_printk(KERN_WARNING
"atiixp: codec acquire timeout\n");
415 static unsigned short snd_atiixp_codec_read(atiixp_t
*chip
, unsigned short codec
, unsigned short reg
)
420 if (snd_atiixp_acquire_codec(chip
) < 0)
422 data
= (reg
<< ATI_REG_PHYS_OUT_ADDR_SHIFT
) |
423 ATI_REG_PHYS_OUT_ADDR_EN
|
424 ATI_REG_PHYS_OUT_RW
|
426 atiixp_write(chip
, PHYS_OUT_ADDR
, data
);
427 if (snd_atiixp_acquire_codec(chip
) < 0)
431 data
= atiixp_read(chip
, PHYS_IN_ADDR
);
432 if (data
& ATI_REG_PHYS_IN_READ_FLAG
)
433 return data
>> ATI_REG_PHYS_IN_DATA_SHIFT
;
436 /* time out may happen during reset */
438 snd_printk(KERN_WARNING
"atiixp: codec read timeout (reg %x)\n", reg
);
443 static void snd_atiixp_codec_write(atiixp_t
*chip
, unsigned short codec
, unsigned short reg
, unsigned short val
)
447 if (snd_atiixp_acquire_codec(chip
) < 0)
449 data
= ((unsigned int)val
<< ATI_REG_PHYS_OUT_DATA_SHIFT
) |
450 ((unsigned int)reg
<< ATI_REG_PHYS_OUT_ADDR_SHIFT
) |
451 ATI_REG_PHYS_OUT_ADDR_EN
| codec
;
452 atiixp_write(chip
, PHYS_OUT_ADDR
, data
);
456 static unsigned short snd_atiixp_ac97_read(ac97_t
*ac97
, unsigned short reg
)
458 atiixp_t
*chip
= ac97
->private_data
;
459 return snd_atiixp_codec_read(chip
, ac97
->num
, reg
);
463 static void snd_atiixp_ac97_write(ac97_t
*ac97
, unsigned short reg
, unsigned short val
)
465 atiixp_t
*chip
= ac97
->private_data
;
466 if (reg
== AC97_GPIO_STATUS
) {
467 atiixp_write(chip
, MODEM_OUT_GPIO
,
468 (val
<< ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT
) | ATI_REG_MODEM_OUT_GPIO_EN
);
471 snd_atiixp_codec_write(chip
, ac97
->num
, reg
, val
);
477 static int snd_atiixp_aclink_reset(atiixp_t
*chip
)
481 /* reset powerdoewn */
482 if (atiixp_update(chip
, CMD
, ATI_REG_CMD_POWERDOWN
, 0))
485 /* perform a software reset */
486 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SOFT_RESET
, ATI_REG_CMD_AC_SOFT_RESET
);
487 atiixp_read(chip
, CMD
);
489 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SOFT_RESET
, 0);
492 while (! (atiixp_read(chip
, CMD
) & ATI_REG_CMD_ACLINK_ACTIVE
)) {
493 /* do a hard reset */
494 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
,
495 ATI_REG_CMD_AC_SYNC
);
496 atiixp_read(chip
, CMD
);
498 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_RESET
, ATI_REG_CMD_AC_RESET
);
500 snd_printk(KERN_ERR
"atiixp: codec reset timeout\n");
505 /* deassert RESET and assert SYNC to make sure */
506 atiixp_update(chip
, CMD
, ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
,
507 ATI_REG_CMD_AC_SYNC
|ATI_REG_CMD_AC_RESET
);
513 static int snd_atiixp_aclink_down(atiixp_t
*chip
)
515 // if (atiixp_read(chip, MODEM_MIRROR) & 0x1) /* modem running, too? */
517 atiixp_update(chip
, CMD
,
518 ATI_REG_CMD_POWERDOWN
| ATI_REG_CMD_AC_RESET
,
519 ATI_REG_CMD_POWERDOWN
);
525 * auto-detection of codecs
527 * the IXP chip can generate interrupts for the non-existing codecs.
528 * NEW_FRAME interrupt is used to make sure that the interrupt is generated
529 * even if all three codecs are connected.
532 #define ALL_CODEC_NOT_READY \
533 (ATI_REG_ISR_CODEC0_NOT_READY |\
534 ATI_REG_ISR_CODEC1_NOT_READY |\
535 ATI_REG_ISR_CODEC2_NOT_READY)
536 #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
538 static int snd_atiixp_codec_detect(atiixp_t
*chip
)
542 chip
->codec_not_ready_bits
= 0;
543 atiixp_write(chip
, IER
, CODEC_CHECK_BITS
);
544 /* wait for the interrupts */
546 while (timeout
-- > 0) {
548 if (chip
->codec_not_ready_bits
)
551 atiixp_write(chip
, IER
, 0); /* disable irqs */
553 if ((chip
->codec_not_ready_bits
& ALL_CODEC_NOT_READY
) == ALL_CODEC_NOT_READY
) {
554 snd_printk(KERN_ERR
"atiixp: no codec detected!\n");
562 * enable DMA and irqs
564 static int snd_atiixp_chip_start(atiixp_t
*chip
)
568 /* set up spdif, enable burst mode */
569 reg
= atiixp_read(chip
, CMD
);
570 reg
|= ATI_REG_CMD_BURST_EN
;
571 if(!(reg
& ATI_REG_CMD_MODEM_PRESENT
))
572 reg
|= ATI_REG_CMD_MODEM_PRESENT
;
573 atiixp_write(chip
, CMD
, reg
);
575 /* clear all interrupt source */
576 atiixp_write(chip
, ISR
, 0xffffffff);
578 atiixp_write(chip
, IER
,
579 ATI_REG_IER_MODEM_STATUS_EN
|
580 ATI_REG_IER_MODEM_IN_XRUN_EN
|
581 ATI_REG_IER_MODEM_OUT1_XRUN_EN
);
587 * disable DMA and IRQs
589 static int snd_atiixp_chip_stop(atiixp_t
*chip
)
591 /* clear interrupt source */
592 atiixp_write(chip
, ISR
, atiixp_read(chip
, ISR
));
594 atiixp_write(chip
, IER
, 0);
604 * pointer callback simplly reads XXX_DMA_DT_CUR register as the current
605 * position. when SG-buffer is implemented, the offset must be calculated
608 static snd_pcm_uframes_t
snd_atiixp_pcm_pointer(snd_pcm_substream_t
*substream
)
610 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
611 snd_pcm_runtime_t
*runtime
= substream
->runtime
;
612 atiixp_dma_t
*dma
= (atiixp_dma_t
*)runtime
->private_data
;
617 curptr
= readl(chip
->remap_addr
+ dma
->ops
->dt_cur
);
618 if (curptr
< dma
->buf_addr
)
620 curptr
-= dma
->buf_addr
;
621 if (curptr
>= dma
->buf_bytes
)
623 return bytes_to_frames(runtime
, curptr
);
625 snd_printd("atiixp-modem: invalid DMA pointer read 0x%x (buf=%x)\n",
626 readl(chip
->remap_addr
+ dma
->ops
->dt_cur
), dma
->buf_addr
);
631 * XRUN detected, and stop the PCM substream
633 static void snd_atiixp_xrun_dma(atiixp_t
*chip
, atiixp_dma_t
*dma
)
635 if (! dma
->substream
|| ! dma
->running
)
637 snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma
->ops
->type
);
638 snd_pcm_stop(dma
->substream
, SNDRV_PCM_STATE_XRUN
);
642 * the period ack. update the substream.
644 static void snd_atiixp_update_dma(atiixp_t
*chip
, atiixp_dma_t
*dma
)
646 if (! dma
->substream
|| ! dma
->running
)
648 snd_pcm_period_elapsed(dma
->substream
);
651 /* set BUS_BUSY interrupt bit if any DMA is running */
652 /* call with spinlock held */
653 static void snd_atiixp_check_bus_busy(atiixp_t
*chip
)
655 unsigned int bus_busy
;
656 if (atiixp_read(chip
, CMD
) & (ATI_REG_CMD_MODEM_SEND1_EN
|
657 ATI_REG_CMD_MODEM_RECEIVE_EN
))
658 bus_busy
= ATI_REG_IER_MODEM_SET_BUS_BUSY
;
661 atiixp_update(chip
, IER
, ATI_REG_IER_MODEM_SET_BUS_BUSY
, bus_busy
);
664 /* common trigger callback
665 * calling the lowlevel callbacks in it
667 static int snd_atiixp_pcm_trigger(snd_pcm_substream_t
*substream
, int cmd
)
669 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
670 atiixp_dma_t
*dma
= (atiixp_dma_t
*)substream
->runtime
->private_data
;
673 snd_assert(dma
->ops
->enable_transfer
&& dma
->ops
->flush_dma
, return -EINVAL
);
675 spin_lock(&chip
->reg_lock
);
677 case SNDRV_PCM_TRIGGER_START
:
678 dma
->ops
->enable_transfer(chip
, 1);
681 case SNDRV_PCM_TRIGGER_STOP
:
682 dma
->ops
->enable_transfer(chip
, 0);
690 snd_atiixp_check_bus_busy(chip
);
691 if (cmd
== SNDRV_PCM_TRIGGER_STOP
) {
692 dma
->ops
->flush_dma(chip
);
693 snd_atiixp_check_bus_busy(chip
);
696 spin_unlock(&chip
->reg_lock
);
702 * lowlevel callbacks for each DMA type
704 * every callback is supposed to be called in chip->reg_lock spinlock
707 /* flush FIFO of analog OUT DMA */
708 static void atiixp_out_flush_dma(atiixp_t
*chip
)
710 atiixp_write(chip
, MODEM_FIFO_FLUSH
, ATI_REG_MODEM_FIFO_OUT1_FLUSH
);
713 /* enable/disable analog OUT DMA */
714 static void atiixp_out_enable_dma(atiixp_t
*chip
, int on
)
717 data
= atiixp_read(chip
, CMD
);
719 if (data
& ATI_REG_CMD_MODEM_OUT_DMA1_EN
)
721 atiixp_out_flush_dma(chip
);
722 data
|= ATI_REG_CMD_MODEM_OUT_DMA1_EN
;
724 data
&= ~ATI_REG_CMD_MODEM_OUT_DMA1_EN
;
725 atiixp_write(chip
, CMD
, data
);
728 /* start/stop transfer over OUT DMA */
729 static void atiixp_out_enable_transfer(atiixp_t
*chip
, int on
)
731 atiixp_update(chip
, CMD
, ATI_REG_CMD_MODEM_SEND1_EN
,
732 on
? ATI_REG_CMD_MODEM_SEND1_EN
: 0);
735 /* enable/disable analog IN DMA */
736 static void atiixp_in_enable_dma(atiixp_t
*chip
, int on
)
738 atiixp_update(chip
, CMD
, ATI_REG_CMD_MODEM_IN_DMA_EN
,
739 on
? ATI_REG_CMD_MODEM_IN_DMA_EN
: 0);
742 /* start/stop analog IN DMA */
743 static void atiixp_in_enable_transfer(atiixp_t
*chip
, int on
)
746 unsigned int data
= atiixp_read(chip
, CMD
);
747 if (! (data
& ATI_REG_CMD_MODEM_RECEIVE_EN
)) {
748 data
|= ATI_REG_CMD_MODEM_RECEIVE_EN
;
749 atiixp_write(chip
, CMD
, data
);
752 atiixp_update(chip
, CMD
, ATI_REG_CMD_MODEM_RECEIVE_EN
, 0);
755 /* flush FIFO of analog IN DMA */
756 static void atiixp_in_flush_dma(atiixp_t
*chip
)
758 atiixp_write(chip
, MODEM_FIFO_FLUSH
, ATI_REG_MODEM_FIFO_IN_FLUSH
);
761 /* set up slots and formats for analog OUT */
762 static int snd_atiixp_playback_prepare(snd_pcm_substream_t
*substream
)
764 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
767 spin_lock_irq(&chip
->reg_lock
);
768 /* set output threshold */
769 data
= atiixp_read(chip
, MODEM_OUT_FIFO
);
770 data
&= ~ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK
;
771 data
|= 0x04 << ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT
;
772 atiixp_write(chip
, MODEM_OUT_FIFO
, data
);
773 spin_unlock_irq(&chip
->reg_lock
);
777 /* set up slots and formats for analog IN */
778 static int snd_atiixp_capture_prepare(snd_pcm_substream_t
*substream
)
784 * hw_params - allocate the buffer and set up buffer descriptors
786 static int snd_atiixp_pcm_hw_params(snd_pcm_substream_t
*substream
,
787 snd_pcm_hw_params_t
*hw_params
)
789 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
790 atiixp_dma_t
*dma
= (atiixp_dma_t
*)substream
->runtime
->private_data
;
794 err
= snd_pcm_lib_malloc_pages(substream
, params_buffer_bytes(hw_params
));
797 dma
->buf_addr
= substream
->runtime
->dma_addr
;
798 dma
->buf_bytes
= params_buffer_bytes(hw_params
);
800 err
= atiixp_build_dma_packets(chip
, dma
, substream
,
801 params_periods(hw_params
),
802 params_period_bytes(hw_params
));
806 /* set up modem rate */
807 for (i
= 0; i
< NUM_ATI_CODECS
; i
++) {
810 snd_ac97_write(chip
->ac97
[i
], AC97_LINE1_RATE
, params_rate(hw_params
));
811 snd_ac97_write(chip
->ac97
[i
], AC97_LINE1_LEVEL
, 0);
817 static int snd_atiixp_pcm_hw_free(snd_pcm_substream_t
* substream
)
819 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
820 atiixp_dma_t
*dma
= (atiixp_dma_t
*)substream
->runtime
->private_data
;
822 atiixp_clear_dma_packets(chip
, dma
, substream
);
823 snd_pcm_lib_free_pages(substream
);
829 * pcm hardware definition, identical for all DMA types
831 static snd_pcm_hardware_t snd_atiixp_pcm_hw
=
833 .info
= (SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
834 SNDRV_PCM_INFO_BLOCK_TRANSFER
|
835 SNDRV_PCM_INFO_MMAP_VALID
),
836 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
837 .rates
= SNDRV_PCM_RATE_8000
| SNDRV_PCM_RATE_16000
| SNDRV_PCM_RATE_KNOT
,
842 .buffer_bytes_max
= 256 * 1024,
843 .period_bytes_min
= 32,
844 .period_bytes_max
= 128 * 1024,
846 .periods_max
= ATI_MAX_DESCRIPTORS
,
849 static int snd_atiixp_pcm_open(snd_pcm_substream_t
*substream
, atiixp_dma_t
*dma
, int pcm_type
)
851 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
852 snd_pcm_runtime_t
*runtime
= substream
->runtime
;
854 static unsigned int rates
[] = { 8000, 9600, 12000, 16000 };
855 static snd_pcm_hw_constraint_list_t hw_constraints_rates
= {
856 .count
= ARRAY_SIZE(rates
),
861 snd_assert(dma
->ops
&& dma
->ops
->enable_dma
, return -EINVAL
);
865 dma
->substream
= substream
;
866 runtime
->hw
= snd_atiixp_pcm_hw
;
867 dma
->ac97_pcm_type
= pcm_type
;
868 if ((err
= snd_pcm_hw_constraint_list(runtime
, 0, SNDRV_PCM_HW_PARAM_RATE
, &hw_constraints_rates
)) < 0)
870 if ((err
= snd_pcm_hw_constraint_integer(runtime
, SNDRV_PCM_HW_PARAM_PERIODS
)) < 0)
872 runtime
->private_data
= dma
;
874 /* enable DMA bits */
875 spin_lock_irq(&chip
->reg_lock
);
876 dma
->ops
->enable_dma(chip
, 1);
877 spin_unlock_irq(&chip
->reg_lock
);
883 static int snd_atiixp_pcm_close(snd_pcm_substream_t
*substream
, atiixp_dma_t
*dma
)
885 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
886 /* disable DMA bits */
887 snd_assert(dma
->ops
&& dma
->ops
->enable_dma
, return -EINVAL
);
888 spin_lock_irq(&chip
->reg_lock
);
889 dma
->ops
->enable_dma(chip
, 0);
890 spin_unlock_irq(&chip
->reg_lock
);
891 dma
->substream
= NULL
;
898 static int snd_atiixp_playback_open(snd_pcm_substream_t
*substream
)
900 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
903 down(&chip
->open_mutex
);
904 err
= snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
], 0);
905 up(&chip
->open_mutex
);
911 static int snd_atiixp_playback_close(snd_pcm_substream_t
*substream
)
913 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
915 down(&chip
->open_mutex
);
916 err
= snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
917 up(&chip
->open_mutex
);
921 static int snd_atiixp_capture_open(snd_pcm_substream_t
*substream
)
923 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
924 return snd_atiixp_pcm_open(substream
, &chip
->dmas
[ATI_DMA_CAPTURE
], 1);
927 static int snd_atiixp_capture_close(snd_pcm_substream_t
*substream
)
929 atiixp_t
*chip
= snd_pcm_substream_chip(substream
);
930 return snd_atiixp_pcm_close(substream
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
935 static snd_pcm_ops_t snd_atiixp_playback_ops
= {
936 .open
= snd_atiixp_playback_open
,
937 .close
= snd_atiixp_playback_close
,
938 .ioctl
= snd_pcm_lib_ioctl
,
939 .hw_params
= snd_atiixp_pcm_hw_params
,
940 .hw_free
= snd_atiixp_pcm_hw_free
,
941 .prepare
= snd_atiixp_playback_prepare
,
942 .trigger
= snd_atiixp_pcm_trigger
,
943 .pointer
= snd_atiixp_pcm_pointer
,
947 static snd_pcm_ops_t snd_atiixp_capture_ops
= {
948 .open
= snd_atiixp_capture_open
,
949 .close
= snd_atiixp_capture_close
,
950 .ioctl
= snd_pcm_lib_ioctl
,
951 .hw_params
= snd_atiixp_pcm_hw_params
,
952 .hw_free
= snd_atiixp_pcm_hw_free
,
953 .prepare
= snd_atiixp_capture_prepare
,
954 .trigger
= snd_atiixp_pcm_trigger
,
955 .pointer
= snd_atiixp_pcm_pointer
,
958 static atiixp_dma_ops_t snd_atiixp_playback_dma_ops
= {
959 .type
= ATI_DMA_PLAYBACK
,
960 .llp_offset
= ATI_REG_MODEM_OUT_DMA1_LINKPTR
,
961 .dt_cur
= ATI_REG_MODEM_OUT_DMA1_DT_CUR
,
962 .enable_dma
= atiixp_out_enable_dma
,
963 .enable_transfer
= atiixp_out_enable_transfer
,
964 .flush_dma
= atiixp_out_flush_dma
,
967 static atiixp_dma_ops_t snd_atiixp_capture_dma_ops
= {
968 .type
= ATI_DMA_CAPTURE
,
969 .llp_offset
= ATI_REG_MODEM_IN_DMA_LINKPTR
,
970 .dt_cur
= ATI_REG_MODEM_IN_DMA_DT_CUR
,
971 .enable_dma
= atiixp_in_enable_dma
,
972 .enable_transfer
= atiixp_in_enable_transfer
,
973 .flush_dma
= atiixp_in_flush_dma
,
976 static int __devinit
snd_atiixp_pcm_new(atiixp_t
*chip
)
981 /* initialize constants */
982 chip
->dmas
[ATI_DMA_PLAYBACK
].ops
= &snd_atiixp_playback_dma_ops
;
983 chip
->dmas
[ATI_DMA_CAPTURE
].ops
= &snd_atiixp_capture_dma_ops
;
985 /* PCM #0: analog I/O */
986 err
= snd_pcm_new(chip
->card
, "ATI IXP MC97", ATI_PCMDEV_ANALOG
, 1, 1, &pcm
);
989 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_PLAYBACK
, &snd_atiixp_playback_ops
);
990 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_CAPTURE
, &snd_atiixp_capture_ops
);
991 pcm
->private_data
= chip
;
992 strcpy(pcm
->name
, "ATI IXP MC97");
993 chip
->pcmdevs
[ATI_PCMDEV_ANALOG
] = pcm
;
995 snd_pcm_lib_preallocate_pages_for_all(pcm
, SNDRV_DMA_TYPE_DEV
,
996 snd_dma_pci_data(chip
->pci
), 64*1024, 128*1024);
1006 static irqreturn_t
snd_atiixp_interrupt(int irq
, void *dev_id
, struct pt_regs
*regs
)
1008 atiixp_t
*chip
= dev_id
;
1009 unsigned int status
;
1011 status
= atiixp_read(chip
, ISR
);
1016 /* process audio DMA */
1017 if (status
& ATI_REG_ISR_MODEM_OUT1_XRUN
)
1018 snd_atiixp_xrun_dma(chip
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1019 else if (status
& ATI_REG_ISR_MODEM_OUT1_STATUS
)
1020 snd_atiixp_update_dma(chip
, &chip
->dmas
[ATI_DMA_PLAYBACK
]);
1021 if (status
& ATI_REG_ISR_MODEM_IN_XRUN
)
1022 snd_atiixp_xrun_dma(chip
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
1023 else if (status
& ATI_REG_ISR_MODEM_IN_STATUS
)
1024 snd_atiixp_update_dma(chip
, &chip
->dmas
[ATI_DMA_CAPTURE
]);
1026 /* for codec detection */
1027 if (status
& CODEC_CHECK_BITS
) {
1028 unsigned int detected
;
1029 detected
= status
& CODEC_CHECK_BITS
;
1030 spin_lock(&chip
->reg_lock
);
1031 chip
->codec_not_ready_bits
|= detected
;
1032 atiixp_update(chip
, IER
, detected
, 0); /* disable the detected irqs */
1033 spin_unlock(&chip
->reg_lock
);
1037 atiixp_write(chip
, ISR
, status
);
1044 * ac97 mixer section
1047 static int __devinit
snd_atiixp_mixer_new(atiixp_t
*chip
, int clock
)
1050 ac97_template_t ac97
;
1053 static ac97_bus_ops_t ops
= {
1054 .write
= snd_atiixp_ac97_write
,
1055 .read
= snd_atiixp_ac97_read
,
1057 static unsigned int codec_skip
[NUM_ATI_CODECS
] = {
1058 ATI_REG_ISR_CODEC0_NOT_READY
,
1059 ATI_REG_ISR_CODEC1_NOT_READY
,
1060 ATI_REG_ISR_CODEC2_NOT_READY
,
1063 if (snd_atiixp_codec_detect(chip
) < 0)
1066 if ((err
= snd_ac97_bus(chip
->card
, 0, &ops
, chip
, &pbus
)) < 0)
1068 pbus
->clock
= clock
;
1069 pbus
->shared_type
= AC97_SHARED_TYPE_ATIIXP
; /* shared with audio driver */
1070 chip
->ac97_bus
= pbus
;
1073 for (i
= 0; i
< NUM_ATI_CODECS
; i
++) {
1074 if (chip
->codec_not_ready_bits
& codec_skip
[i
])
1076 memset(&ac97
, 0, sizeof(ac97
));
1077 ac97
.private_data
= chip
;
1078 ac97
.pci
= chip
->pci
;
1080 ac97
.scaps
= AC97_SCAP_SKIP_AUDIO
;
1081 if ((err
= snd_ac97_mixer(pbus
, &ac97
, &chip
->ac97
[i
])) < 0) {
1082 chip
->ac97
[i
] = NULL
; /* to be sure */
1083 snd_printdd("atiixp: codec %d not available for modem\n", i
);
1089 if (! codec_count
) {
1090 snd_printk(KERN_ERR
"atiixp: no codec available\n");
1094 /* snd_ac97_tune_hardware(chip->ac97, ac97_quirks); */
1104 static int snd_atiixp_suspend(snd_card_t
*card
, pm_message_t state
)
1106 atiixp_t
*chip
= card
->pm_private_data
;
1109 for (i
= 0; i
< NUM_ATI_PCMDEVS
; i
++)
1110 if (chip
->pcmdevs
[i
])
1111 snd_pcm_suspend_all(chip
->pcmdevs
[i
]);
1112 for (i
= 0; i
< NUM_ATI_CODECS
; i
++)
1114 snd_ac97_suspend(chip
->ac97
[i
]);
1115 snd_atiixp_aclink_down(chip
);
1116 snd_atiixp_chip_stop(chip
);
1118 pci_set_power_state(chip
->pci
, PCI_D3hot
);
1119 pci_disable_device(chip
->pci
);
1123 static int snd_atiixp_resume(snd_card_t
*card
)
1125 atiixp_t
*chip
= card
->pm_private_data
;
1128 pci_enable_device(chip
->pci
);
1129 pci_set_power_state(chip
->pci
, PCI_D0
);
1130 pci_set_master(chip
->pci
);
1132 snd_atiixp_aclink_reset(chip
);
1133 snd_atiixp_chip_start(chip
);
1135 for (i
= 0; i
< NUM_ATI_CODECS
; i
++)
1137 snd_ac97_resume(chip
->ac97
[i
]);
1141 #endif /* CONFIG_PM */
1145 * proc interface for register dump
1148 static void snd_atiixp_proc_read(snd_info_entry_t
*entry
, snd_info_buffer_t
*buffer
)
1150 atiixp_t
*chip
= entry
->private_data
;
1153 for (i
= 0; i
< 256; i
+= 4)
1154 snd_iprintf(buffer
, "%02x: %08x\n", i
, readl(chip
->remap_addr
+ i
));
1157 static void __devinit
snd_atiixp_proc_init(atiixp_t
*chip
)
1159 snd_info_entry_t
*entry
;
1161 if (! snd_card_proc_new(chip
->card
, "atiixp", &entry
))
1162 snd_info_set_text_ops(entry
, chip
, 1024, snd_atiixp_proc_read
);
1171 static int snd_atiixp_free(atiixp_t
*chip
)
1175 snd_atiixp_chip_stop(chip
);
1176 synchronize_irq(chip
->irq
);
1179 free_irq(chip
->irq
, (void *)chip
);
1180 if (chip
->remap_addr
)
1181 iounmap(chip
->remap_addr
);
1182 pci_release_regions(chip
->pci
);
1183 pci_disable_device(chip
->pci
);
1188 static int snd_atiixp_dev_free(snd_device_t
*device
)
1190 atiixp_t
*chip
= device
->device_data
;
1191 return snd_atiixp_free(chip
);
1195 * constructor for chip instance
1197 static int __devinit
snd_atiixp_create(snd_card_t
*card
,
1198 struct pci_dev
*pci
,
1201 static snd_device_ops_t ops
= {
1202 .dev_free
= snd_atiixp_dev_free
,
1207 if ((err
= pci_enable_device(pci
)) < 0)
1210 chip
= kcalloc(1, sizeof(*chip
), GFP_KERNEL
);
1212 pci_disable_device(pci
);
1216 spin_lock_init(&chip
->reg_lock
);
1217 init_MUTEX(&chip
->open_mutex
);
1221 if ((err
= pci_request_regions(pci
, "ATI IXP MC97")) < 0) {
1223 pci_disable_device(pci
);
1226 chip
->addr
= pci_resource_start(pci
, 0);
1227 chip
->remap_addr
= ioremap_nocache(chip
->addr
, pci_resource_len(pci
, 0));
1228 if (chip
->remap_addr
== NULL
) {
1229 snd_printk(KERN_ERR
"AC'97 space ioremap problem\n");
1230 snd_atiixp_free(chip
);
1234 if (request_irq(pci
->irq
, snd_atiixp_interrupt
, SA_INTERRUPT
|SA_SHIRQ
, card
->shortname
, (void *)chip
)) {
1235 snd_printk(KERN_ERR
"unable to grab IRQ %d\n", pci
->irq
);
1236 snd_atiixp_free(chip
);
1239 chip
->irq
= pci
->irq
;
1240 pci_set_master(pci
);
1241 synchronize_irq(chip
->irq
);
1243 if ((err
= snd_device_new(card
, SNDRV_DEV_LOWLEVEL
, chip
, &ops
)) < 0) {
1244 snd_atiixp_free(chip
);
1248 snd_card_set_dev(card
, &pci
->dev
);
1255 static int __devinit
snd_atiixp_probe(struct pci_dev
*pci
,
1256 const struct pci_device_id
*pci_id
)
1261 unsigned char revision
;
1264 if (dev
>= SNDRV_CARDS
)
1271 card
= snd_card_new(index
[dev
], id
[dev
], THIS_MODULE
, 0);
1275 pci_read_config_byte(pci
, PCI_REVISION_ID
, &revision
);
1277 strcpy(card
->driver
, "ATIIXP-MODEM");
1278 strcpy(card
->shortname
, "ATI IXP Modem");
1279 if ((err
= snd_atiixp_create(card
, pci
, &chip
)) < 0)
1282 if ((err
= snd_atiixp_aclink_reset(chip
)) < 0)
1285 if ((err
= snd_atiixp_mixer_new(chip
, ac97_clock
[dev
])) < 0)
1288 if ((err
= snd_atiixp_pcm_new(chip
)) < 0)
1291 snd_atiixp_proc_init(chip
);
1293 snd_atiixp_chip_start(chip
);
1295 sprintf(card
->longname
, "%s rev %x at 0x%lx, irq %i",
1296 card
->shortname
, revision
, chip
->addr
, chip
->irq
);
1298 snd_card_set_pm_callback(card
, snd_atiixp_suspend
, snd_atiixp_resume
, chip
);
1300 if ((err
= snd_card_register(card
)) < 0)
1303 pci_set_drvdata(pci
, card
);
1308 snd_card_free(card
);
1312 static void __devexit
snd_atiixp_remove(struct pci_dev
*pci
)
1314 snd_card_free(pci_get_drvdata(pci
));
1315 pci_set_drvdata(pci
, NULL
);
1318 static struct pci_driver driver
= {
1319 .name
= "ATI IXP MC97 controller",
1320 .id_table
= snd_atiixp_ids
,
1321 .probe
= snd_atiixp_probe
,
1322 .remove
= __devexit_p(snd_atiixp_remove
),
1323 SND_PCI_PM_CALLBACKS
1327 static int __init
alsa_card_atiixp_init(void)
1329 return pci_register_driver(&driver
);
1332 static void __exit
alsa_card_atiixp_exit(void)
1334 pci_unregister_driver(&driver
);
1337 module_init(alsa_card_atiixp_init
)
1338 module_exit(alsa_card_atiixp_exit
)