1 /* Analog Devices 1889 audio driver
3 * This is a driver for the AD1889 PCI audio chipset found
4 * on the HP PA-RISC [BCJ]-xxx0 workstations.
6 * Copyright (C) 2004-2005, Kyle McMartin <kyle@parisc-linux.org>
7 * Copyright (C) 2005, Thibaut Varene <varenet@parisc-linux.org>
8 * Based on the OSS AD1889 driver by Randolph Chung <tausq@debian.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License, version 2, as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * Do we need to take care of CCS register?
25 * Maybe we could use finer grained locking (separate locks for pb/cap)?
27 * Control Interface (mixer) support
28 * Better AC97 support (VSR...)?
32 * SG DMA support (this will need *alot* of work)
35 #include <linux/init.h>
36 #include <linux/pci.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/slab.h>
39 #include <linux/interrupt.h>
40 #include <linux/compiler.h>
41 #include <linux/delay.h>
42 #include <linux/dma-mapping.h>
44 #include <sound/driver.h>
45 #include <sound/core.h>
46 #include <sound/pcm.h>
47 #include <sound/initval.h>
48 #include <sound/ac97_codec.h>
53 #include "ac97/ac97_id.h"
55 #define AD1889_DRVVER "Version: 1.7"
57 MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>");
58 MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver");
59 MODULE_LICENSE("GPL");
60 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}");
62 static int index
[SNDRV_CARDS
] = SNDRV_DEFAULT_IDX
;
63 module_param_array(index
, int, NULL
, 0444);
64 MODULE_PARM_DESC(index
, "Index value for the AD1889 soundcard.");
66 static char *id
[SNDRV_CARDS
] = SNDRV_DEFAULT_STR
;
67 module_param_array(id
, charp
, NULL
, 0444);
68 MODULE_PARM_DESC(id
, "ID string for the AD1889 soundcard.");
70 static int enable
[SNDRV_CARDS
] = SNDRV_DEFAULT_ENABLE_PNP
;
71 module_param_array(enable
, bool, NULL
, 0444);
72 MODULE_PARM_DESC(enable
, "Enable AD1889 soundcard.");
74 static char *ac97_quirk
[SNDRV_CARDS
];
75 module_param_array(ac97_quirk
, charp
, NULL
, 0444);
76 MODULE_PARM_DESC(ac97_quirk
, "AC'97 workaround for strange hardware.");
78 #define DEVNAME "ad1889"
79 #define PFX DEVNAME ": "
81 /* let's use the global sound debug interfaces */
82 #define ad1889_debug(fmt, arg...) snd_printd(KERN_DEBUG fmt, ## arg)
84 /* keep track of some hw registers */
85 struct ad1889_register_state
{
86 u16 reg
; /* reg setup */
87 u32 addr
; /* dma base address */
88 unsigned long size
; /* DMA buffer size */
92 struct snd_card
*card
;
99 struct snd_ac97
*ac97
;
100 struct snd_ac97_bus
*ac97_bus
;
102 struct snd_info_entry
*proc
;
104 struct snd_pcm_substream
*psubs
;
105 struct snd_pcm_substream
*csubs
;
107 /* playback register state */
108 struct ad1889_register_state wave
;
109 struct ad1889_register_state ramc
;
115 ad1889_readw(struct snd_ad1889
*chip
, unsigned reg
)
117 return readw(chip
->iobase
+ reg
);
121 ad1889_writew(struct snd_ad1889
*chip
, unsigned reg
, u16 val
)
123 writew(val
, chip
->iobase
+ reg
);
127 ad1889_readl(struct snd_ad1889
*chip
, unsigned reg
)
129 return readl(chip
->iobase
+ reg
);
133 ad1889_writel(struct snd_ad1889
*chip
, unsigned reg
, u32 val
)
135 writel(val
, chip
->iobase
+ reg
);
139 ad1889_unmute(struct snd_ad1889
*chip
)
142 st
= ad1889_readw(chip
, AD_DS_WADA
) &
143 ~(AD_DS_WADA_RWAM
| AD_DS_WADA_LWAM
);
144 ad1889_writew(chip
, AD_DS_WADA
, st
);
145 ad1889_readw(chip
, AD_DS_WADA
);
149 ad1889_mute(struct snd_ad1889
*chip
)
152 st
= ad1889_readw(chip
, AD_DS_WADA
) | AD_DS_WADA_RWAM
| AD_DS_WADA_LWAM
;
153 ad1889_writew(chip
, AD_DS_WADA
, st
);
154 ad1889_readw(chip
, AD_DS_WADA
);
158 ad1889_load_adc_buffer_address(struct snd_ad1889
*chip
, u32 address
)
160 ad1889_writel(chip
, AD_DMA_ADCBA
, address
);
161 ad1889_writel(chip
, AD_DMA_ADCCA
, address
);
165 ad1889_load_adc_buffer_count(struct snd_ad1889
*chip
, u32 count
)
167 ad1889_writel(chip
, AD_DMA_ADCBC
, count
);
168 ad1889_writel(chip
, AD_DMA_ADCCC
, count
);
172 ad1889_load_adc_interrupt_count(struct snd_ad1889
*chip
, u32 count
)
174 ad1889_writel(chip
, AD_DMA_ADCIB
, count
);
175 ad1889_writel(chip
, AD_DMA_ADCIC
, count
);
179 ad1889_load_wave_buffer_address(struct snd_ad1889
*chip
, u32 address
)
181 ad1889_writel(chip
, AD_DMA_WAVBA
, address
);
182 ad1889_writel(chip
, AD_DMA_WAVCA
, address
);
186 ad1889_load_wave_buffer_count(struct snd_ad1889
*chip
, u32 count
)
188 ad1889_writel(chip
, AD_DMA_WAVBC
, count
);
189 ad1889_writel(chip
, AD_DMA_WAVCC
, count
);
193 ad1889_load_wave_interrupt_count(struct snd_ad1889
*chip
, u32 count
)
195 ad1889_writel(chip
, AD_DMA_WAVIB
, count
);
196 ad1889_writel(chip
, AD_DMA_WAVIC
, count
);
200 ad1889_channel_reset(struct snd_ad1889
*chip
, unsigned int channel
)
204 if (channel
& AD_CHAN_WAV
) {
205 /* Disable wave channel */
206 reg
= ad1889_readw(chip
, AD_DS_WSMC
) & ~AD_DS_WSMC_WAEN
;
207 ad1889_writew(chip
, AD_DS_WSMC
, reg
);
208 chip
->wave
.reg
= reg
;
211 reg
= ad1889_readw(chip
, AD_DMA_WAV
);
212 reg
&= AD_DMA_IM_DIS
;
214 ad1889_writew(chip
, AD_DMA_WAV
, reg
);
216 /* clear IRQ and address counters and pointers */
217 ad1889_load_wave_buffer_address(chip
, 0x0);
218 ad1889_load_wave_buffer_count(chip
, 0x0);
219 ad1889_load_wave_interrupt_count(chip
, 0x0);
222 ad1889_readw(chip
, AD_DMA_WAV
);
225 if (channel
& AD_CHAN_ADC
) {
226 /* Disable ADC channel */
227 reg
= ad1889_readw(chip
, AD_DS_RAMC
) & ~AD_DS_RAMC_ADEN
;
228 ad1889_writew(chip
, AD_DS_RAMC
, reg
);
229 chip
->ramc
.reg
= reg
;
231 reg
= ad1889_readw(chip
, AD_DMA_ADC
);
232 reg
&= AD_DMA_IM_DIS
;
234 ad1889_writew(chip
, AD_DMA_ADC
, reg
);
236 ad1889_load_adc_buffer_address(chip
, 0x0);
237 ad1889_load_adc_buffer_count(chip
, 0x0);
238 ad1889_load_adc_interrupt_count(chip
, 0x0);
241 ad1889_readw(chip
, AD_DMA_ADC
);
246 snd_ad1889_ac97_read(struct snd_ac97
*ac97
, unsigned short reg
)
248 struct snd_ad1889
*chip
= ac97
->private_data
;
249 return ad1889_readw(chip
, AD_AC97_BASE
+ reg
);
253 snd_ad1889_ac97_write(struct snd_ac97
*ac97
, unsigned short reg
, unsigned short val
)
255 struct snd_ad1889
*chip
= ac97
->private_data
;
256 ad1889_writew(chip
, AD_AC97_BASE
+ reg
, val
);
260 snd_ad1889_ac97_ready(struct snd_ad1889
*chip
)
262 int retry
= 400; /* average needs 352 msec */
264 while (!(ad1889_readw(chip
, AD_AC97_ACIC
) & AD_AC97_ACIC_ACRDY
)
268 snd_printk(KERN_ERR PFX
"[%s] Link is not ready.\n",
272 ad1889_debug("[%s] ready after %d ms\n", __FUNCTION__
, 400 - retry
);
278 snd_ad1889_hw_params(struct snd_pcm_substream
*substream
,
279 struct snd_pcm_hw_params
*hw_params
)
281 return snd_pcm_lib_malloc_pages(substream
,
282 params_buffer_bytes(hw_params
));
286 snd_ad1889_hw_free(struct snd_pcm_substream
*substream
)
288 return snd_pcm_lib_free_pages(substream
);
291 static struct snd_pcm_hardware snd_ad1889_playback_hw
= {
292 .info
= SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
293 SNDRV_PCM_INFO_MMAP_VALID
| SNDRV_PCM_INFO_BLOCK_TRANSFER
,
294 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
295 .rates
= SNDRV_PCM_RATE_CONTINUOUS
| SNDRV_PCM_RATE_8000_48000
,
296 .rate_min
= 8000, /* docs say 7000, but we're lazy */
300 .buffer_bytes_max
= BUFFER_BYTES_MAX
,
301 .period_bytes_min
= PERIOD_BYTES_MIN
,
302 .period_bytes_max
= PERIOD_BYTES_MAX
,
303 .periods_min
= PERIODS_MIN
,
304 .periods_max
= PERIODS_MAX
,
308 static struct snd_pcm_hardware snd_ad1889_capture_hw
= {
309 .info
= SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
310 SNDRV_PCM_INFO_MMAP_VALID
| SNDRV_PCM_INFO_BLOCK_TRANSFER
,
311 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
312 .rates
= SNDRV_PCM_RATE_48000
,
313 .rate_min
= 48000, /* docs say we could to VSR, but we're lazy */
317 .buffer_bytes_max
= BUFFER_BYTES_MAX
,
318 .period_bytes_min
= PERIOD_BYTES_MIN
,
319 .period_bytes_max
= PERIOD_BYTES_MAX
,
320 .periods_min
= PERIODS_MIN
,
321 .periods_max
= PERIODS_MAX
,
326 snd_ad1889_playback_open(struct snd_pcm_substream
*ss
)
328 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
329 struct snd_pcm_runtime
*rt
= ss
->runtime
;
332 rt
->hw
= snd_ad1889_playback_hw
;
338 snd_ad1889_capture_open(struct snd_pcm_substream
*ss
)
340 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
341 struct snd_pcm_runtime
*rt
= ss
->runtime
;
344 rt
->hw
= snd_ad1889_capture_hw
;
350 snd_ad1889_playback_close(struct snd_pcm_substream
*ss
)
352 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
358 snd_ad1889_capture_close(struct snd_pcm_substream
*ss
)
360 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
366 snd_ad1889_playback_prepare(struct snd_pcm_substream
*ss
)
368 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
369 struct snd_pcm_runtime
*rt
= ss
->runtime
;
370 unsigned int size
= snd_pcm_lib_buffer_bytes(ss
);
371 unsigned int count
= snd_pcm_lib_period_bytes(ss
);
374 ad1889_channel_reset(chip
, AD_CHAN_WAV
);
376 reg
= ad1889_readw(chip
, AD_DS_WSMC
);
378 /* Mask out 16-bit / Stereo */
379 reg
&= ~(AD_DS_WSMC_WA16
| AD_DS_WSMC_WAST
);
381 if (snd_pcm_format_width(rt
->format
) == 16)
382 reg
|= AD_DS_WSMC_WA16
;
384 if (rt
->channels
> 1)
385 reg
|= AD_DS_WSMC_WAST
;
387 /* let's make sure we don't clobber ourselves */
388 spin_lock_irq(&chip
->lock
);
390 chip
->wave
.size
= size
;
391 chip
->wave
.reg
= reg
;
392 chip
->wave
.addr
= rt
->dma_addr
;
394 ad1889_writew(chip
, AD_DS_WSMC
, chip
->wave
.reg
);
396 /* Set sample rates on the codec */
397 ad1889_writew(chip
, AD_DS_WAS
, rt
->rate
);
400 ad1889_load_wave_buffer_address(chip
, chip
->wave
.addr
);
401 ad1889_load_wave_buffer_count(chip
, size
);
402 ad1889_load_wave_interrupt_count(chip
, count
);
405 ad1889_readw(chip
, AD_DS_WSMC
);
407 spin_unlock_irq(&chip
->lock
);
409 ad1889_debug("prepare playback: addr = 0x%x, count = %u, "
410 "size = %u, reg = 0x%x, rate = %u\n", chip
->wave
.addr
,
411 count
, size
, reg
, rt
->rate
);
416 snd_ad1889_capture_prepare(struct snd_pcm_substream
*ss
)
418 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
419 struct snd_pcm_runtime
*rt
= ss
->runtime
;
420 unsigned int size
= snd_pcm_lib_buffer_bytes(ss
);
421 unsigned int count
= snd_pcm_lib_period_bytes(ss
);
424 ad1889_channel_reset(chip
, AD_CHAN_ADC
);
426 reg
= ad1889_readw(chip
, AD_DS_RAMC
);
428 /* Mask out 16-bit / Stereo */
429 reg
&= ~(AD_DS_RAMC_AD16
| AD_DS_RAMC_ADST
);
431 if (snd_pcm_format_width(rt
->format
) == 16)
432 reg
|= AD_DS_RAMC_AD16
;
434 if (rt
->channels
> 1)
435 reg
|= AD_DS_RAMC_ADST
;
437 /* let's make sure we don't clobber ourselves */
438 spin_lock_irq(&chip
->lock
);
440 chip
->ramc
.size
= size
;
441 chip
->ramc
.reg
= reg
;
442 chip
->ramc
.addr
= rt
->dma_addr
;
444 ad1889_writew(chip
, AD_DS_RAMC
, chip
->ramc
.reg
);
447 ad1889_load_adc_buffer_address(chip
, chip
->ramc
.addr
);
448 ad1889_load_adc_buffer_count(chip
, size
);
449 ad1889_load_adc_interrupt_count(chip
, count
);
452 ad1889_readw(chip
, AD_DS_RAMC
);
454 spin_unlock_irq(&chip
->lock
);
456 ad1889_debug("prepare capture: addr = 0x%x, count = %u, "
457 "size = %u, reg = 0x%x, rate = %u\n", chip
->ramc
.addr
,
458 count
, size
, reg
, rt
->rate
);
462 /* this is called in atomic context with IRQ disabled.
463 Must be as fast as possible and not sleep.
464 DMA should be *triggered* by this call.
465 The WSMC "WAEN" bit triggers DMA Wave On/Off */
467 snd_ad1889_playback_trigger(struct snd_pcm_substream
*ss
, int cmd
)
470 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
472 wsmc
= ad1889_readw(chip
, AD_DS_WSMC
);
475 case SNDRV_PCM_TRIGGER_START
:
476 /* enable DMA loop & interrupts */
477 ad1889_writew(chip
, AD_DMA_WAV
, AD_DMA_LOOP
| AD_DMA_IM_CNT
);
478 wsmc
|= AD_DS_WSMC_WAEN
;
479 /* 1 to clear CHSS bit */
480 ad1889_writel(chip
, AD_DMA_CHSS
, AD_DMA_CHSS_WAVS
);
483 case SNDRV_PCM_TRIGGER_STOP
:
485 wsmc
&= ~AD_DS_WSMC_WAEN
;
492 chip
->wave
.reg
= wsmc
;
493 ad1889_writew(chip
, AD_DS_WSMC
, wsmc
);
494 ad1889_readw(chip
, AD_DS_WSMC
); /* flush */
496 /* reset the chip when STOP - will disable IRQs */
497 if (cmd
== SNDRV_PCM_TRIGGER_STOP
)
498 ad1889_channel_reset(chip
, AD_CHAN_WAV
);
503 /* this is called in atomic context with IRQ disabled.
504 Must be as fast as possible and not sleep.
505 DMA should be *triggered* by this call.
506 The RAMC "ADEN" bit triggers DMA ADC On/Off */
508 snd_ad1889_capture_trigger(struct snd_pcm_substream
*ss
, int cmd
)
511 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
513 ramc
= ad1889_readw(chip
, AD_DS_RAMC
);
516 case SNDRV_PCM_TRIGGER_START
:
517 /* enable DMA loop & interrupts */
518 ad1889_writew(chip
, AD_DMA_ADC
, AD_DMA_LOOP
| AD_DMA_IM_CNT
);
519 ramc
|= AD_DS_RAMC_ADEN
;
520 /* 1 to clear CHSS bit */
521 ad1889_writel(chip
, AD_DMA_CHSS
, AD_DMA_CHSS_ADCS
);
523 case SNDRV_PCM_TRIGGER_STOP
:
524 ramc
&= ~AD_DS_RAMC_ADEN
;
530 chip
->ramc
.reg
= ramc
;
531 ad1889_writew(chip
, AD_DS_RAMC
, ramc
);
532 ad1889_readw(chip
, AD_DS_RAMC
); /* flush */
534 /* reset the chip when STOP - will disable IRQs */
535 if (cmd
== SNDRV_PCM_TRIGGER_STOP
)
536 ad1889_channel_reset(chip
, AD_CHAN_ADC
);
541 /* Called in atomic context with IRQ disabled */
542 static snd_pcm_uframes_t
543 snd_ad1889_playback_pointer(struct snd_pcm_substream
*ss
)
546 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
548 if (unlikely(!(chip
->wave
.reg
& AD_DS_WSMC_WAEN
)))
551 ptr
= ad1889_readl(chip
, AD_DMA_WAVCA
);
552 ptr
-= chip
->wave
.addr
;
554 snd_assert((ptr
>= 0) && (ptr
< chip
->wave
.size
), return 0);
556 return bytes_to_frames(ss
->runtime
, ptr
);
559 /* Called in atomic context with IRQ disabled */
560 static snd_pcm_uframes_t
561 snd_ad1889_capture_pointer(struct snd_pcm_substream
*ss
)
564 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
566 if (unlikely(!(chip
->ramc
.reg
& AD_DS_RAMC_ADEN
)))
569 ptr
= ad1889_readl(chip
, AD_DMA_ADCCA
);
570 ptr
-= chip
->ramc
.addr
;
572 snd_assert((ptr
>= 0) && (ptr
< chip
->ramc
.size
), return 0);
574 return bytes_to_frames(ss
->runtime
, ptr
);
577 static struct snd_pcm_ops snd_ad1889_playback_ops
= {
578 .open
= snd_ad1889_playback_open
,
579 .close
= snd_ad1889_playback_close
,
580 .ioctl
= snd_pcm_lib_ioctl
,
581 .hw_params
= snd_ad1889_hw_params
,
582 .hw_free
= snd_ad1889_hw_free
,
583 .prepare
= snd_ad1889_playback_prepare
,
584 .trigger
= snd_ad1889_playback_trigger
,
585 .pointer
= snd_ad1889_playback_pointer
,
588 static struct snd_pcm_ops snd_ad1889_capture_ops
= {
589 .open
= snd_ad1889_capture_open
,
590 .close
= snd_ad1889_capture_close
,
591 .ioctl
= snd_pcm_lib_ioctl
,
592 .hw_params
= snd_ad1889_hw_params
,
593 .hw_free
= snd_ad1889_hw_free
,
594 .prepare
= snd_ad1889_capture_prepare
,
595 .trigger
= snd_ad1889_capture_trigger
,
596 .pointer
= snd_ad1889_capture_pointer
,
600 snd_ad1889_interrupt(int irq
,
602 struct pt_regs
*regs
)
605 struct snd_ad1889
*chip
= dev_id
;
607 st
= ad1889_readl(chip
, AD_DMA_DISR
);
610 ad1889_writel(chip
, AD_DMA_DISR
, st
);
617 if (st
& (AD_DMA_DISR_PMAI
|AD_DMA_DISR_PTAI
))
618 ad1889_debug("Unexpected master or target abort interrupt!\n");
620 if ((st
& AD_DMA_DISR_WAVI
) && chip
->psubs
)
621 snd_pcm_period_elapsed(chip
->psubs
);
622 if ((st
& AD_DMA_DISR_ADCI
) && chip
->csubs
)
623 snd_pcm_period_elapsed(chip
->csubs
);
629 snd_ad1889_pcm_init(struct snd_ad1889
*chip
, int device
, struct snd_pcm
**rpcm
)
637 err
= snd_pcm_new(chip
->card
, chip
->card
->driver
, device
, 1, 1, &pcm
);
641 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_PLAYBACK
,
642 &snd_ad1889_playback_ops
);
643 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_CAPTURE
,
644 &snd_ad1889_capture_ops
);
646 pcm
->private_data
= chip
;
648 strcpy(pcm
->name
, chip
->card
->shortname
);
654 err
= snd_pcm_lib_preallocate_pages_for_all(pcm
, SNDRV_DMA_TYPE_DEV
,
655 snd_dma_pci_data(chip
->pci
),
656 BUFFER_BYTES_MAX
/ 2,
660 snd_printk(KERN_ERR PFX
"buffer allocation error: %d\n", err
);
671 snd_ad1889_proc_read(struct snd_info_entry
*entry
, struct snd_info_buffer
*buffer
)
673 struct snd_ad1889
*chip
= entry
->private_data
;
677 reg
= ad1889_readw(chip
, AD_DS_WSMC
);
678 snd_iprintf(buffer
, "Wave output: %s\n",
679 (reg
& AD_DS_WSMC_WAEN
) ? "enabled" : "disabled");
680 snd_iprintf(buffer
, "Wave Channels: %s\n",
681 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
682 snd_iprintf(buffer
, "Wave Quality: %d-bit linear\n",
683 (reg
& AD_DS_WSMC_WA16
) ? 16 : 8);
685 /* WARQ is at offset 12 */
686 tmp
= (reg
& AD_DS_WSMC_WARQ
) ?
687 (((reg
& AD_DS_WSMC_WARQ
>> 12) & 0x01) ? 12 : 18) : 4;
688 tmp
/= (reg
& AD_DS_WSMC_WAST
) ? 2 : 1;
690 snd_iprintf(buffer
, "Wave FIFO: %d %s words\n\n", tmp
,
691 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
694 snd_iprintf(buffer
, "Synthesis output: %s\n",
695 reg
& AD_DS_WSMC_SYEN
? "enabled" : "disabled");
697 /* SYRQ is at offset 4 */
698 tmp
= (reg
& AD_DS_WSMC_SYRQ
) ?
699 (((reg
& AD_DS_WSMC_SYRQ
>> 4) & 0x01) ? 12 : 18) : 4;
700 tmp
/= (reg
& AD_DS_WSMC_WAST
) ? 2 : 1;
702 snd_iprintf(buffer
, "Synthesis FIFO: %d %s words\n\n", tmp
,
703 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
705 reg
= ad1889_readw(chip
, AD_DS_RAMC
);
706 snd_iprintf(buffer
, "ADC input: %s\n",
707 (reg
& AD_DS_RAMC_ADEN
) ? "enabled" : "disabled");
708 snd_iprintf(buffer
, "ADC Channels: %s\n",
709 (reg
& AD_DS_RAMC_ADST
) ? "stereo" : "mono");
710 snd_iprintf(buffer
, "ADC Quality: %d-bit linear\n",
711 (reg
& AD_DS_RAMC_AD16
) ? 16 : 8);
713 /* ACRQ is at offset 4 */
714 tmp
= (reg
& AD_DS_RAMC_ACRQ
) ?
715 (((reg
& AD_DS_RAMC_ACRQ
>> 4) & 0x01) ? 12 : 18) : 4;
716 tmp
/= (reg
& AD_DS_RAMC_ADST
) ? 2 : 1;
718 snd_iprintf(buffer
, "ADC FIFO: %d %s words\n\n", tmp
,
719 (reg
& AD_DS_RAMC_ADST
) ? "stereo" : "mono");
721 snd_iprintf(buffer
, "Resampler input: %s\n",
722 reg
& AD_DS_RAMC_REEN
? "enabled" : "disabled");
724 /* RERQ is at offset 12 */
725 tmp
= (reg
& AD_DS_RAMC_RERQ
) ?
726 (((reg
& AD_DS_RAMC_RERQ
>> 12) & 0x01) ? 12 : 18) : 4;
727 tmp
/= (reg
& AD_DS_RAMC_ADST
) ? 2 : 1;
729 snd_iprintf(buffer
, "Resampler FIFO: %d %s words\n\n", tmp
,
730 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
733 /* doc says LSB represents -1.5dB, but the max value (-94.5dB)
734 suggests that LSB is -3dB, which is more coherent with the logarithmic
735 nature of the dB scale */
736 reg
= ad1889_readw(chip
, AD_DS_WADA
);
737 snd_iprintf(buffer
, "Left: %s, -%d dB\n",
738 (reg
& AD_DS_WADA_LWAM
) ? "mute" : "unmute",
739 ((reg
& AD_DS_WADA_LWAA
) >> 8) * 3);
740 reg
= ad1889_readw(chip
, AD_DS_WADA
);
741 snd_iprintf(buffer
, "Right: %s, -%d dB\n",
742 (reg
& AD_DS_WADA_RWAM
) ? "mute" : "unmute",
743 ((reg
& AD_DS_WADA_RWAA
) >> 8) * 3);
745 reg
= ad1889_readw(chip
, AD_DS_WAS
);
746 snd_iprintf(buffer
, "Wave samplerate: %u Hz\n", reg
);
747 reg
= ad1889_readw(chip
, AD_DS_RES
);
748 snd_iprintf(buffer
, "Resampler samplerate: %u Hz\n", reg
);
751 static void __devinit
752 snd_ad1889_proc_init(struct snd_ad1889
*chip
)
754 struct snd_info_entry
*entry
;
756 if (!snd_card_proc_new(chip
->card
, chip
->card
->driver
, &entry
))
757 snd_info_set_text_ops(entry
, chip
, 1024, snd_ad1889_proc_read
);
760 static struct ac97_quirk ac97_quirks
[] = {
762 .subvendor
= 0x11d4, /* AD */
763 .subdevice
= 0x1889, /* AD1889 */
764 .codec_id
= AC97_ID_AD1819
,
766 .type
= AC97_TUNE_HP_ONLY
771 static void __devinit
772 snd_ad1889_ac97_xinit(struct snd_ad1889
*chip
)
776 reg
= ad1889_readw(chip
, AD_AC97_ACIC
);
777 reg
|= AD_AC97_ACIC_ACRD
; /* Reset Disable */
778 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
779 ad1889_readw(chip
, AD_AC97_ACIC
); /* flush posted write */
781 /* Interface Enable */
782 reg
|= AD_AC97_ACIC_ACIE
;
783 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
785 snd_ad1889_ac97_ready(chip
);
787 /* Audio Stream Output | Variable Sample Rate Mode */
788 reg
= ad1889_readw(chip
, AD_AC97_ACIC
);
789 reg
|= AD_AC97_ACIC_ASOE
| AD_AC97_ACIC_VSRM
;
790 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
791 ad1889_readw(chip
, AD_AC97_ACIC
); /* flush posted write */
796 snd_ad1889_ac97_bus_free(struct snd_ac97_bus
*bus
)
798 struct snd_ad1889
*chip
= bus
->private_data
;
799 chip
->ac97_bus
= NULL
;
803 snd_ad1889_ac97_free(struct snd_ac97
*ac97
)
805 struct snd_ad1889
*chip
= ac97
->private_data
;
810 snd_ad1889_ac97_init(struct snd_ad1889
*chip
, const char *quirk_override
)
813 struct snd_ac97_template ac97
;
814 static struct snd_ac97_bus_ops ops
= {
815 .write
= snd_ad1889_ac97_write
,
816 .read
= snd_ad1889_ac97_read
,
819 /* doing that here, it works. */
820 snd_ad1889_ac97_xinit(chip
);
822 err
= snd_ac97_bus(chip
->card
, 0, &ops
, chip
, &chip
->ac97_bus
);
826 chip
->ac97_bus
->private_free
= snd_ad1889_ac97_bus_free
;
828 memset(&ac97
, 0, sizeof(ac97
));
829 ac97
.private_data
= chip
;
830 ac97
.private_free
= snd_ad1889_ac97_free
;
831 ac97
.pci
= chip
->pci
;
833 err
= snd_ac97_mixer(chip
->ac97_bus
, &ac97
, &chip
->ac97
);
837 snd_ac97_tune_hardware(chip
->ac97
, ac97_quirks
, quirk_override
);
843 snd_ad1889_free(struct snd_ad1889
*chip
)
848 spin_lock_irq(&chip
->lock
);
852 /* Turn off interrupt on count and zero DMA registers */
853 ad1889_channel_reset(chip
, AD_CHAN_WAV
| AD_CHAN_ADC
);
855 /* clear DISR. If we don't, we'd better jump off the Eiffel Tower */
856 ad1889_writel(chip
, AD_DMA_DISR
, AD_DMA_DISR_PTAI
| AD_DMA_DISR_PMAI
);
857 ad1889_readl(chip
, AD_DMA_DISR
); /* flush, dammit! */
859 spin_unlock_irq(&chip
->lock
);
861 synchronize_irq(chip
->irq
);
864 free_irq(chip
->irq
, (void*)chip
);
868 iounmap(chip
->iobase
);
870 pci_release_regions(chip
->pci
);
871 pci_disable_device(chip
->pci
);
878 snd_ad1889_dev_free(struct snd_device
*device
)
880 struct snd_ad1889
*chip
= device
->device_data
;
881 return snd_ad1889_free(chip
);
885 snd_ad1889_init(struct snd_ad1889
*chip
)
887 ad1889_writew(chip
, AD_DS_CCS
, AD_DS_CCS_CLKEN
); /* turn on clock */
888 ad1889_readw(chip
, AD_DS_CCS
); /* flush posted write */
892 /* enable Master and Target abort interrupts */
893 ad1889_writel(chip
, AD_DMA_DISR
, AD_DMA_DISR_PMAE
| AD_DMA_DISR_PTAE
);
899 snd_ad1889_create(struct snd_card
*card
,
901 struct snd_ad1889
**rchip
)
905 struct snd_ad1889
*chip
;
906 static struct snd_device_ops ops
= {
907 .dev_free
= snd_ad1889_dev_free
,
912 if ((err
= pci_enable_device(pci
)) < 0)
915 /* check PCI availability (32bit DMA) */
916 if (pci_set_dma_mask(pci
, DMA_32BIT_MASK
) < 0 ||
917 pci_set_consistent_dma_mask(pci
, DMA_32BIT_MASK
) < 0) {
918 printk(KERN_ERR PFX
"error setting 32-bit DMA mask.\n");
919 pci_disable_device(pci
);
923 /* allocate chip specific data with zero-filled memory */
924 if ((chip
= kzalloc(sizeof(*chip
), GFP_KERNEL
)) == NULL
) {
925 pci_disable_device(pci
);
930 card
->private_data
= chip
;
934 /* (1) PCI resource allocation */
935 if ((err
= pci_request_regions(pci
, card
->driver
)) < 0)
938 chip
->bar
= pci_resource_start(pci
, 0);
939 chip
->iobase
= ioremap_nocache(chip
->bar
, pci_resource_len(pci
, 0));
940 if (chip
->iobase
== NULL
) {
941 printk(KERN_ERR PFX
"unable to reserve region.\n");
948 spin_lock_init(&chip
->lock
); /* only now can we call ad1889_free */
950 if (request_irq(pci
->irq
, snd_ad1889_interrupt
,
951 SA_INTERRUPT
|SA_SHIRQ
, card
->driver
, (void*)chip
)) {
952 printk(KERN_ERR PFX
"cannot obtain IRQ %d\n", pci
->irq
);
953 snd_ad1889_free(chip
);
957 chip
->irq
= pci
->irq
;
958 synchronize_irq(chip
->irq
);
960 /* (2) initialization of the chip hardware */
961 if ((err
= snd_ad1889_init(chip
)) < 0) {
962 snd_ad1889_free(chip
);
966 if ((err
= snd_device_new(card
, SNDRV_DEV_LOWLEVEL
, chip
, &ops
)) < 0) {
967 snd_ad1889_free(chip
);
971 snd_card_set_dev(card
, &pci
->dev
);
979 pci_disable_device(pci
);
985 snd_ad1889_probe(struct pci_dev
*pci
,
986 const struct pci_device_id
*pci_id
)
990 struct snd_card
*card
;
991 struct snd_ad1889
*chip
;
994 if (devno
>= SNDRV_CARDS
)
996 if (!enable
[devno
]) {
1002 card
= snd_card_new(index
[devno
], id
[devno
], THIS_MODULE
, 0);
1003 /* XXX REVISIT: we can probably allocate chip in this call */
1007 strcpy(card
->driver
, "AD1889");
1008 strcpy(card
->shortname
, "Analog Devices AD1889");
1011 err
= snd_ad1889_create(card
, pci
, &chip
);
1016 sprintf(card
->longname
, "%s at 0x%lx irq %i",
1017 card
->shortname
, chip
->bar
, chip
->irq
);
1020 /* register AC97 mixer */
1021 err
= snd_ad1889_ac97_init(chip
, ac97_quirk
[devno
]);
1025 err
= snd_ad1889_pcm_init(chip
, 0, NULL
);
1029 /* register proc interface */
1030 snd_ad1889_proc_init(chip
);
1033 err
= snd_card_register(card
);
1038 pci_set_drvdata(pci
, card
);
1044 snd_card_free(card
);
1048 static void __devexit
1049 snd_ad1889_remove(struct pci_dev
*pci
)
1051 snd_card_free(pci_get_drvdata(pci
));
1052 pci_set_drvdata(pci
, NULL
);
1055 static struct pci_device_id snd_ad1889_ids
[] = {
1056 { PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES
, PCI_DEVICE_ID_AD1889JS
) },
1059 MODULE_DEVICE_TABLE(pci
, snd_ad1889_ids
);
1061 static struct pci_driver ad1889_pci
= {
1062 .name
= "AD1889 Audio",
1063 .id_table
= snd_ad1889_ids
,
1064 .probe
= snd_ad1889_probe
,
1065 .remove
= __devexit_p(snd_ad1889_remove
),
1069 alsa_ad1889_init(void)
1071 return pci_register_driver(&ad1889_pci
);
1075 alsa_ad1889_fini(void)
1077 pci_unregister_driver(&ad1889_pci
);
1080 module_init(alsa_ad1889_init
);
1081 module_exit(alsa_ad1889_fini
);