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/slab.h>
38 #include <linux/interrupt.h>
39 #include <linux/compiler.h>
40 #include <linux/delay.h>
42 #include <sound/driver.h>
43 #include <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/initval.h>
46 #include <sound/ac97_codec.h>
51 #include "ac97/ac97_id.h"
53 #define AD1889_DRVVER "$Revision: 1.3 $"
55 MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>");
56 MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver");
57 MODULE_LICENSE("GPL");
58 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}");
60 static int index
[SNDRV_CARDS
] = SNDRV_DEFAULT_IDX
;
61 module_param_array(index
, int, NULL
, 0444);
62 MODULE_PARM_DESC(index
, "Index value for the AD1889 soundcard.");
64 static char *id
[SNDRV_CARDS
] = SNDRV_DEFAULT_STR
;
65 module_param_array(id
, charp
, NULL
, 0444);
66 MODULE_PARM_DESC(id
, "ID string for the AD1889 soundcard.");
68 static int enable
[SNDRV_CARDS
] = SNDRV_DEFAULT_ENABLE_PNP
;
69 module_param_array(enable
, bool, NULL
, 0444);
70 MODULE_PARM_DESC(enable
, "Enable AD1889 soundcard.");
72 static char *ac97_quirk
[SNDRV_CARDS
];
73 module_param_array(ac97_quirk
, charp
, NULL
, 0444);
74 MODULE_PARM_DESC(ac97_quirk
, "AC'97 workaround for strange hardware.");
76 #define DEVNAME "ad1889"
77 #define PFX DEVNAME ": "
79 /* let's use the global sound debug interfaces */
80 #define ad1889_debug(fmt, arg...) snd_printd(KERN_DEBUG fmt, ## arg)
82 /* keep track of some hw registers */
83 struct ad1889_register_state
{
84 u16 reg
; /* reg setup */
85 u32 addr
; /* dma base address */
86 unsigned long size
; /* DMA buffer size */
100 snd_info_entry_t
*proc
;
102 snd_pcm_substream_t
*psubs
;
103 snd_pcm_substream_t
*csubs
;
105 /* playback register state */
106 struct ad1889_register_state wave
;
107 struct ad1889_register_state ramc
;
113 ad1889_readw(struct snd_ad1889
*chip
, unsigned reg
)
115 return readw(chip
->iobase
+ reg
);
119 ad1889_writew(struct snd_ad1889
*chip
, unsigned reg
, u16 val
)
121 writew(val
, chip
->iobase
+ reg
);
125 ad1889_readl(struct snd_ad1889
*chip
, unsigned reg
)
127 return readl(chip
->iobase
+ reg
);
131 ad1889_writel(struct snd_ad1889
*chip
, unsigned reg
, u32 val
)
133 writel(val
, chip
->iobase
+ reg
);
137 ad1889_unmute(struct snd_ad1889
*chip
)
140 st
= ad1889_readw(chip
, AD_DS_WADA
) &
141 ~(AD_DS_WADA_RWAM
| AD_DS_WADA_LWAM
);
142 ad1889_writew(chip
, AD_DS_WADA
, st
);
143 ad1889_readw(chip
, AD_DS_WADA
);
147 ad1889_mute(struct snd_ad1889
*chip
)
150 st
= ad1889_readw(chip
, AD_DS_WADA
) | AD_DS_WADA_RWAM
| AD_DS_WADA_LWAM
;
151 ad1889_writew(chip
, AD_DS_WADA
, st
);
152 ad1889_readw(chip
, AD_DS_WADA
);
156 ad1889_load_adc_buffer_address(struct snd_ad1889
*chip
, u32 address
)
158 ad1889_writel(chip
, AD_DMA_ADCBA
, address
);
159 ad1889_writel(chip
, AD_DMA_ADCCA
, address
);
163 ad1889_load_adc_buffer_count(struct snd_ad1889
*chip
, u32 count
)
165 ad1889_writel(chip
, AD_DMA_ADCBC
, count
);
166 ad1889_writel(chip
, AD_DMA_ADCCC
, count
);
170 ad1889_load_adc_interrupt_count(struct snd_ad1889
*chip
, u32 count
)
172 ad1889_writel(chip
, AD_DMA_ADCIB
, count
);
173 ad1889_writel(chip
, AD_DMA_ADCIC
, count
);
177 ad1889_load_wave_buffer_address(struct snd_ad1889
*chip
, u32 address
)
179 ad1889_writel(chip
, AD_DMA_WAVBA
, address
);
180 ad1889_writel(chip
, AD_DMA_WAVCA
, address
);
184 ad1889_load_wave_buffer_count(struct snd_ad1889
*chip
, u32 count
)
186 ad1889_writel(chip
, AD_DMA_WAVBC
, count
);
187 ad1889_writel(chip
, AD_DMA_WAVCC
, count
);
191 ad1889_load_wave_interrupt_count(struct snd_ad1889
*chip
, u32 count
)
193 ad1889_writel(chip
, AD_DMA_WAVIB
, count
);
194 ad1889_writel(chip
, AD_DMA_WAVIC
, count
);
198 ad1889_channel_reset(struct snd_ad1889
*chip
, unsigned int channel
)
202 if (channel
& AD_CHAN_WAV
) {
203 /* Disable wave channel */
204 reg
= ad1889_readw(chip
, AD_DS_WSMC
) & ~AD_DS_WSMC_WAEN
;
205 ad1889_writew(chip
, AD_DS_WSMC
, reg
);
206 chip
->wave
.reg
= reg
;
209 reg
= ad1889_readw(chip
, AD_DMA_WAV
);
210 reg
&= AD_DMA_IM_DIS
;
212 ad1889_writew(chip
, AD_DMA_WAV
, reg
);
214 /* clear IRQ and address counters and pointers */
215 ad1889_load_wave_buffer_address(chip
, 0x0);
216 ad1889_load_wave_buffer_count(chip
, 0x0);
217 ad1889_load_wave_interrupt_count(chip
, 0x0);
220 ad1889_readw(chip
, AD_DMA_WAV
);
223 if (channel
& AD_CHAN_ADC
) {
224 /* Disable ADC channel */
225 reg
= ad1889_readw(chip
, AD_DS_RAMC
) & ~AD_DS_RAMC_ADEN
;
226 ad1889_writew(chip
, AD_DS_RAMC
, reg
);
227 chip
->ramc
.reg
= reg
;
229 reg
= ad1889_readw(chip
, AD_DMA_ADC
);
230 reg
&= AD_DMA_IM_DIS
;
232 ad1889_writew(chip
, AD_DMA_ADC
, reg
);
234 ad1889_load_adc_buffer_address(chip
, 0x0);
235 ad1889_load_adc_buffer_count(chip
, 0x0);
236 ad1889_load_adc_interrupt_count(chip
, 0x0);
239 ad1889_readw(chip
, AD_DMA_ADC
);
244 snd_ad1889_ac97_read(ac97_t
*ac97
, unsigned short reg
)
246 struct snd_ad1889
*chip
= ac97
->private_data
;
247 return ad1889_readw(chip
, AD_AC97_BASE
+ reg
);
251 snd_ad1889_ac97_write(ac97_t
*ac97
, unsigned short reg
, unsigned short val
)
253 struct snd_ad1889
*chip
= ac97
->private_data
;
254 ad1889_writew(chip
, AD_AC97_BASE
+ reg
, val
);
258 snd_ad1889_ac97_ready(struct snd_ad1889
*chip
)
260 int retry
= 400; /* average needs 352 msec */
262 while (!(ad1889_readw(chip
, AD_AC97_ACIC
) & AD_AC97_ACIC_ACRDY
)
266 snd_printk(KERN_ERR PFX
"[%s] Link is not ready.\n",
270 ad1889_debug("[%s] ready after %d ms\n", __FUNCTION__
, 400 - retry
);
276 snd_ad1889_hw_params(snd_pcm_substream_t
*substream
,
277 snd_pcm_hw_params_t
*hw_params
)
279 return snd_pcm_lib_malloc_pages(substream
,
280 params_buffer_bytes(hw_params
));
284 snd_ad1889_hw_free(snd_pcm_substream_t
*substream
)
286 return snd_pcm_lib_free_pages(substream
);
289 static snd_pcm_hardware_t snd_ad1889_playback_hw
= {
290 .info
= SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
291 SNDRV_PCM_INFO_MMAP_VALID
| SNDRV_PCM_INFO_BLOCK_TRANSFER
,
292 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
293 .rates
= SNDRV_PCM_RATE_CONTINUOUS
| SNDRV_PCM_RATE_8000_48000
,
294 .rate_min
= 8000, /* docs say 7000, but we're lazy */
298 .buffer_bytes_max
= BUFFER_BYTES_MAX
,
299 .period_bytes_min
= PERIOD_BYTES_MIN
,
300 .period_bytes_max
= PERIOD_BYTES_MAX
,
301 .periods_min
= PERIODS_MIN
,
302 .periods_max
= PERIODS_MAX
,
306 static snd_pcm_hardware_t snd_ad1889_capture_hw
= {
307 .info
= SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_INTERLEAVED
|
308 SNDRV_PCM_INFO_MMAP_VALID
| SNDRV_PCM_INFO_BLOCK_TRANSFER
,
309 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,
310 .rates
= SNDRV_PCM_RATE_48000
,
311 .rate_min
= 48000, /* docs say we could to VSR, but we're lazy */
315 .buffer_bytes_max
= BUFFER_BYTES_MAX
,
316 .period_bytes_min
= PERIOD_BYTES_MIN
,
317 .period_bytes_max
= PERIOD_BYTES_MAX
,
318 .periods_min
= PERIODS_MIN
,
319 .periods_max
= PERIODS_MAX
,
324 snd_ad1889_playback_open(snd_pcm_substream_t
*ss
)
326 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
327 snd_pcm_runtime_t
*rt
= ss
->runtime
;
330 rt
->hw
= snd_ad1889_playback_hw
;
336 snd_ad1889_capture_open(snd_pcm_substream_t
*ss
)
338 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
339 snd_pcm_runtime_t
*rt
= ss
->runtime
;
342 rt
->hw
= snd_ad1889_capture_hw
;
348 snd_ad1889_playback_close(snd_pcm_substream_t
*ss
)
350 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
356 snd_ad1889_capture_close(snd_pcm_substream_t
*ss
)
358 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
364 snd_ad1889_playback_prepare(snd_pcm_substream_t
*ss
)
366 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
367 snd_pcm_runtime_t
*rt
= ss
->runtime
;
368 unsigned int size
= snd_pcm_lib_buffer_bytes(ss
);
369 unsigned int count
= snd_pcm_lib_period_bytes(ss
);
372 ad1889_channel_reset(chip
, AD_CHAN_WAV
);
374 reg
= ad1889_readw(chip
, AD_DS_WSMC
);
376 /* Mask out 16-bit / Stereo */
377 reg
&= ~(AD_DS_WSMC_WA16
| AD_DS_WSMC_WAST
);
379 if (snd_pcm_format_width(rt
->format
) == 16)
380 reg
|= AD_DS_WSMC_WA16
;
382 if (rt
->channels
> 1)
383 reg
|= AD_DS_WSMC_WAST
;
385 /* let's make sure we don't clobber ourselves */
386 spin_lock_irq(&chip
->lock
);
388 chip
->wave
.size
= size
;
389 chip
->wave
.reg
= reg
;
390 chip
->wave
.addr
= rt
->dma_addr
;
392 ad1889_writew(chip
, AD_DS_WSMC
, chip
->wave
.reg
);
394 /* Set sample rates on the codec */
395 ad1889_writew(chip
, AD_DS_WAS
, rt
->rate
);
398 ad1889_load_wave_buffer_address(chip
, chip
->wave
.addr
);
399 ad1889_load_wave_buffer_count(chip
, size
);
400 ad1889_load_wave_interrupt_count(chip
, count
);
403 ad1889_readw(chip
, AD_DS_WSMC
);
405 spin_unlock_irq(&chip
->lock
);
407 ad1889_debug("prepare playback: addr = 0x%x, count = %u, "
408 "size = %u, reg = 0x%x, rate = %u\n", chip
->wave
.addr
,
409 count
, size
, reg
, rt
->rate
);
414 snd_ad1889_capture_prepare(snd_pcm_substream_t
*ss
)
416 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
417 snd_pcm_runtime_t
*rt
= ss
->runtime
;
418 unsigned int size
= snd_pcm_lib_buffer_bytes(ss
);
419 unsigned int count
= snd_pcm_lib_period_bytes(ss
);
422 ad1889_channel_reset(chip
, AD_CHAN_ADC
);
424 reg
= ad1889_readw(chip
, AD_DS_RAMC
);
426 /* Mask out 16-bit / Stereo */
427 reg
&= ~(AD_DS_RAMC_AD16
| AD_DS_RAMC_ADST
);
429 if (snd_pcm_format_width(rt
->format
) == 16)
430 reg
|= AD_DS_RAMC_AD16
;
432 if (rt
->channels
> 1)
433 reg
|= AD_DS_RAMC_ADST
;
435 /* let's make sure we don't clobber ourselves */
436 spin_lock_irq(&chip
->lock
);
438 chip
->ramc
.size
= size
;
439 chip
->ramc
.reg
= reg
;
440 chip
->ramc
.addr
= rt
->dma_addr
;
442 ad1889_writew(chip
, AD_DS_RAMC
, chip
->ramc
.reg
);
445 ad1889_load_adc_buffer_address(chip
, chip
->ramc
.addr
);
446 ad1889_load_adc_buffer_count(chip
, size
);
447 ad1889_load_adc_interrupt_count(chip
, count
);
450 ad1889_readw(chip
, AD_DS_RAMC
);
452 spin_unlock_irq(&chip
->lock
);
454 ad1889_debug("prepare capture: addr = 0x%x, count = %u, "
455 "size = %u, reg = 0x%x, rate = %u\n", chip
->ramc
.addr
,
456 count
, size
, reg
, rt
->rate
);
460 /* this is called in atomic context with IRQ disabled.
461 Must be as fast as possible and not sleep.
462 DMA should be *triggered* by this call.
463 The WSMC "WAEN" bit triggers DMA Wave On/Off */
465 snd_ad1889_playback_trigger(snd_pcm_substream_t
*ss
, int cmd
)
468 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
470 wsmc
= ad1889_readw(chip
, AD_DS_WSMC
);
473 case SNDRV_PCM_TRIGGER_START
:
474 /* enable DMA loop & interrupts */
475 ad1889_writew(chip
, AD_DMA_WAV
, AD_DMA_LOOP
| AD_DMA_IM_CNT
);
476 wsmc
|= AD_DS_WSMC_WAEN
;
477 /* 1 to clear CHSS bit */
478 ad1889_writel(chip
, AD_DMA_CHSS
, AD_DMA_CHSS_WAVS
);
481 case SNDRV_PCM_TRIGGER_STOP
:
483 wsmc
&= ~AD_DS_WSMC_WAEN
;
490 chip
->wave
.reg
= wsmc
;
491 ad1889_writew(chip
, AD_DS_WSMC
, wsmc
);
492 ad1889_readw(chip
, AD_DS_WSMC
); /* flush */
494 /* reset the chip when STOP - will disable IRQs */
495 if (cmd
== SNDRV_PCM_TRIGGER_STOP
)
496 ad1889_channel_reset(chip
, AD_CHAN_WAV
);
501 /* this is called in atomic context with IRQ disabled.
502 Must be as fast as possible and not sleep.
503 DMA should be *triggered* by this call.
504 The RAMC "ADEN" bit triggers DMA ADC On/Off */
506 snd_ad1889_capture_trigger(snd_pcm_substream_t
*ss
, int cmd
)
509 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
511 ramc
= ad1889_readw(chip
, AD_DS_RAMC
);
514 case SNDRV_PCM_TRIGGER_START
:
515 /* enable DMA loop & interrupts */
516 ad1889_writew(chip
, AD_DMA_ADC
, AD_DMA_LOOP
| AD_DMA_IM_CNT
);
517 ramc
|= AD_DS_RAMC_ADEN
;
518 /* 1 to clear CHSS bit */
519 ad1889_writel(chip
, AD_DMA_CHSS
, AD_DMA_CHSS_ADCS
);
521 case SNDRV_PCM_TRIGGER_STOP
:
522 ramc
&= ~AD_DS_RAMC_ADEN
;
528 chip
->ramc
.reg
= ramc
;
529 ad1889_writew(chip
, AD_DS_RAMC
, ramc
);
530 ad1889_readw(chip
, AD_DS_RAMC
); /* flush */
532 /* reset the chip when STOP - will disable IRQs */
533 if (cmd
== SNDRV_PCM_TRIGGER_STOP
)
534 ad1889_channel_reset(chip
, AD_CHAN_ADC
);
539 /* Called in atomic context with IRQ disabled */
540 static snd_pcm_uframes_t
541 snd_ad1889_playback_pointer(snd_pcm_substream_t
*ss
)
544 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
546 if (unlikely(!(chip
->wave
.reg
& AD_DS_WSMC_WAEN
)))
549 ptr
= ad1889_readl(chip
, AD_DMA_WAVCA
);
550 ptr
-= chip
->wave
.addr
;
552 snd_assert((ptr
>= 0) && (ptr
< chip
->wave
.size
), return 0);
554 return bytes_to_frames(ss
->runtime
, ptr
);
557 /* Called in atomic context with IRQ disabled */
558 static snd_pcm_uframes_t
559 snd_ad1889_capture_pointer(snd_pcm_substream_t
*ss
)
562 struct snd_ad1889
*chip
= snd_pcm_substream_chip(ss
);
564 if (unlikely(!(chip
->ramc
.reg
& AD_DS_RAMC_ADEN
)))
567 ptr
= ad1889_readl(chip
, AD_DMA_ADCCA
);
568 ptr
-= chip
->ramc
.addr
;
570 snd_assert((ptr
>= 0) && (ptr
< chip
->ramc
.size
), return 0);
572 return bytes_to_frames(ss
->runtime
, ptr
);
575 static snd_pcm_ops_t snd_ad1889_playback_ops
= {
576 .open
= snd_ad1889_playback_open
,
577 .close
= snd_ad1889_playback_close
,
578 .ioctl
= snd_pcm_lib_ioctl
,
579 .hw_params
= snd_ad1889_hw_params
,
580 .hw_free
= snd_ad1889_hw_free
,
581 .prepare
= snd_ad1889_playback_prepare
,
582 .trigger
= snd_ad1889_playback_trigger
,
583 .pointer
= snd_ad1889_playback_pointer
,
586 static snd_pcm_ops_t snd_ad1889_capture_ops
= {
587 .open
= snd_ad1889_capture_open
,
588 .close
= snd_ad1889_capture_close
,
589 .ioctl
= snd_pcm_lib_ioctl
,
590 .hw_params
= snd_ad1889_hw_params
,
591 .hw_free
= snd_ad1889_hw_free
,
592 .prepare
= snd_ad1889_capture_prepare
,
593 .trigger
= snd_ad1889_capture_trigger
,
594 .pointer
= snd_ad1889_capture_pointer
,
598 snd_ad1889_interrupt(int irq
,
600 struct pt_regs
*regs
)
603 struct snd_ad1889
*chip
= dev_id
;
605 st
= ad1889_readl(chip
, AD_DMA_DISR
);
608 ad1889_writel(chip
, AD_DMA_DISR
, st
);
615 if (st
& (AD_DMA_DISR_PMAI
|AD_DMA_DISR_PTAI
))
616 ad1889_debug("Unexpected master or target abort interrupt!\n");
618 if ((st
& AD_DMA_DISR_WAVI
) && chip
->psubs
)
619 snd_pcm_period_elapsed(chip
->psubs
);
620 if ((st
& AD_DMA_DISR_ADCI
) && chip
->csubs
)
621 snd_pcm_period_elapsed(chip
->csubs
);
627 snd_ad1889_pcm_free(snd_pcm_t
*pcm
)
629 struct snd_ad1889
*chip
= pcm
->private_data
;
631 snd_pcm_lib_preallocate_free_for_all(pcm
);
635 snd_ad1889_pcm_init(struct snd_ad1889
*chip
, int device
, snd_pcm_t
**rpcm
)
643 err
= snd_pcm_new(chip
->card
, chip
->card
->driver
, device
, 1, 1, &pcm
);
647 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_PLAYBACK
,
648 &snd_ad1889_playback_ops
);
649 snd_pcm_set_ops(pcm
, SNDRV_PCM_STREAM_CAPTURE
,
650 &snd_ad1889_capture_ops
);
652 pcm
->private_data
= chip
;
653 pcm
->private_free
= snd_ad1889_pcm_free
;
655 strcpy(pcm
->name
, chip
->card
->shortname
);
661 err
= snd_pcm_lib_preallocate_pages_for_all(pcm
, SNDRV_DMA_TYPE_DEV
,
662 snd_dma_pci_data(chip
->pci
),
663 BUFFER_BYTES_MAX
/ 2,
667 snd_printk(KERN_ERR PFX
"buffer allocation error: %d\n", err
);
678 snd_ad1889_proc_read(snd_info_entry_t
*entry
, snd_info_buffer_t
*buffer
)
680 struct snd_ad1889
*chip
= entry
->private_data
;
684 reg
= ad1889_readw(chip
, AD_DS_WSMC
);
685 snd_iprintf(buffer
, "Wave output: %s\n",
686 (reg
& AD_DS_WSMC_WAEN
) ? "enabled" : "disabled");
687 snd_iprintf(buffer
, "Wave Channels: %s\n",
688 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
689 snd_iprintf(buffer
, "Wave Quality: %d-bit linear\n",
690 (reg
& AD_DS_WSMC_WA16
) ? 16 : 8);
692 /* WARQ is at offset 12 */
693 tmp
= (reg
& AD_DS_WSMC_WARQ
) ?
694 (((reg
& AD_DS_WSMC_WARQ
>> 12) & 0x01) ? 12 : 18) : 4;
695 tmp
/= (reg
& AD_DS_WSMC_WAST
) ? 2 : 1;
697 snd_iprintf(buffer
, "Wave FIFO: %d %s words\n\n", tmp
,
698 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
701 snd_iprintf(buffer
, "Synthesis output: %s\n",
702 reg
& AD_DS_WSMC_SYEN
? "enabled" : "disabled");
704 /* SYRQ is at offset 4 */
705 tmp
= (reg
& AD_DS_WSMC_SYRQ
) ?
706 (((reg
& AD_DS_WSMC_SYRQ
>> 4) & 0x01) ? 12 : 18) : 4;
707 tmp
/= (reg
& AD_DS_WSMC_WAST
) ? 2 : 1;
709 snd_iprintf(buffer
, "Synthesis FIFO: %d %s words\n\n", tmp
,
710 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
712 reg
= ad1889_readw(chip
, AD_DS_RAMC
);
713 snd_iprintf(buffer
, "ADC input: %s\n",
714 (reg
& AD_DS_RAMC_ADEN
) ? "enabled" : "disabled");
715 snd_iprintf(buffer
, "ADC Channels: %s\n",
716 (reg
& AD_DS_RAMC_ADST
) ? "stereo" : "mono");
717 snd_iprintf(buffer
, "ADC Quality: %d-bit linear\n",
718 (reg
& AD_DS_RAMC_AD16
) ? 16 : 8);
720 /* ACRQ is at offset 4 */
721 tmp
= (reg
& AD_DS_RAMC_ACRQ
) ?
722 (((reg
& AD_DS_RAMC_ACRQ
>> 4) & 0x01) ? 12 : 18) : 4;
723 tmp
/= (reg
& AD_DS_RAMC_ADST
) ? 2 : 1;
725 snd_iprintf(buffer
, "ADC FIFO: %d %s words\n\n", tmp
,
726 (reg
& AD_DS_RAMC_ADST
) ? "stereo" : "mono");
728 snd_iprintf(buffer
, "Resampler input: %s\n",
729 reg
& AD_DS_RAMC_REEN
? "enabled" : "disabled");
731 /* RERQ is at offset 12 */
732 tmp
= (reg
& AD_DS_RAMC_RERQ
) ?
733 (((reg
& AD_DS_RAMC_RERQ
>> 12) & 0x01) ? 12 : 18) : 4;
734 tmp
/= (reg
& AD_DS_RAMC_ADST
) ? 2 : 1;
736 snd_iprintf(buffer
, "Resampler FIFO: %d %s words\n\n", tmp
,
737 (reg
& AD_DS_WSMC_WAST
) ? "stereo" : "mono");
740 /* doc says LSB represents -1.5dB, but the max value (-94.5dB)
741 suggests that LSB is -3dB, which is more coherent with the logarithmic
742 nature of the dB scale */
743 reg
= ad1889_readw(chip
, AD_DS_WADA
);
744 snd_iprintf(buffer
, "Left: %s, -%d dB\n",
745 (reg
& AD_DS_WADA_LWAM
) ? "mute" : "unmute",
746 ((reg
& AD_DS_WADA_LWAA
) >> 8) * 3);
747 reg
= ad1889_readw(chip
, AD_DS_WADA
);
748 snd_iprintf(buffer
, "Right: %s, -%d dB\n",
749 (reg
& AD_DS_WADA_RWAM
) ? "mute" : "unmute",
750 ((reg
& AD_DS_WADA_RWAA
) >> 8) * 3);
752 reg
= ad1889_readw(chip
, AD_DS_WAS
);
753 snd_iprintf(buffer
, "Wave samplerate: %u Hz\n", reg
);
754 reg
= ad1889_readw(chip
, AD_DS_RES
);
755 snd_iprintf(buffer
, "Resampler samplerate: %u Hz\n", reg
);
758 static void __devinit
759 snd_ad1889_proc_init(struct snd_ad1889
*chip
)
761 snd_info_entry_t
*entry
;
763 if (!snd_card_proc_new(chip
->card
, chip
->card
->driver
, &entry
))
764 snd_info_set_text_ops(entry
, chip
, 1024, snd_ad1889_proc_read
);
767 static struct ac97_quirk ac97_quirks
[] = {
769 .subvendor
= 0x11d4, /* AD */
770 .subdevice
= 0x1889, /* AD1889 */
771 .codec_id
= AC97_ID_AD1819
,
773 .type
= AC97_TUNE_HP_ONLY
778 static void __devinit
779 snd_ad1889_ac97_xinit(struct snd_ad1889
*chip
)
783 reg
= ad1889_readw(chip
, AD_AC97_ACIC
);
784 reg
|= AD_AC97_ACIC_ACRD
; /* Reset Disable */
785 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
786 ad1889_readw(chip
, AD_AC97_ACIC
); /* flush posted write */
788 /* Interface Enable */
789 reg
|= AD_AC97_ACIC_ACIE
;
790 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
792 snd_ad1889_ac97_ready(chip
);
794 /* Audio Stream Output | Variable Sample Rate Mode */
795 reg
= ad1889_readw(chip
, AD_AC97_ACIC
);
796 reg
|= AD_AC97_ACIC_ASOE
| AD_AC97_ACIC_VSRM
;
797 ad1889_writew(chip
, AD_AC97_ACIC
, reg
);
798 ad1889_readw(chip
, AD_AC97_ACIC
); /* flush posted write */
803 snd_ad1889_ac97_bus_free(ac97_bus_t
*bus
)
805 struct snd_ad1889
*chip
= bus
->private_data
;
806 chip
->ac97_bus
= NULL
;
810 snd_ad1889_ac97_free(ac97_t
*ac97
)
812 struct snd_ad1889
*chip
= ac97
->private_data
;
817 snd_ad1889_ac97_init(struct snd_ad1889
*chip
, const char *quirk_override
)
820 ac97_template_t ac97
;
821 static ac97_bus_ops_t ops
= {
822 .write
= snd_ad1889_ac97_write
,
823 .read
= snd_ad1889_ac97_read
,
826 /* doing that here, it works. */
827 snd_ad1889_ac97_xinit(chip
);
829 err
= snd_ac97_bus(chip
->card
, 0, &ops
, chip
, &chip
->ac97_bus
);
833 chip
->ac97_bus
->private_free
= snd_ad1889_ac97_bus_free
;
835 memset(&ac97
, 0, sizeof(ac97
));
836 ac97
.private_data
= chip
;
837 ac97
.private_free
= snd_ad1889_ac97_free
;
838 ac97
.pci
= chip
->pci
;
840 err
= snd_ac97_mixer(chip
->ac97_bus
, &ac97
, &chip
->ac97
);
844 snd_ac97_tune_hardware(chip
->ac97
, ac97_quirks
, quirk_override
);
850 snd_ad1889_free(struct snd_ad1889
*chip
)
855 spin_lock_irq(&chip
->lock
);
859 /* Turn off interrupt on count and zero DMA registers */
860 ad1889_channel_reset(chip
, AD_CHAN_WAV
| AD_CHAN_ADC
);
862 /* clear DISR. If we don't, we'd better jump off the Eiffel Tower */
863 ad1889_writel(chip
, AD_DMA_DISR
, AD_DMA_DISR_PTAI
| AD_DMA_DISR_PMAI
);
864 ad1889_readl(chip
, AD_DMA_DISR
); /* flush, dammit! */
866 spin_unlock_irq(&chip
->lock
);
868 synchronize_irq(chip
->irq
);
871 free_irq(chip
->irq
, (void*)chip
);
875 iounmap(chip
->iobase
);
877 pci_release_regions(chip
->pci
);
878 pci_disable_device(chip
->pci
);
885 snd_ad1889_dev_free(snd_device_t
*device
)
887 struct snd_ad1889
*chip
= device
->device_data
;
888 return snd_ad1889_free(chip
);
892 snd_ad1889_init(struct snd_ad1889
*chip
)
894 ad1889_writew(chip
, AD_DS_CCS
, AD_DS_CCS_CLKEN
); /* turn on clock */
895 ad1889_readw(chip
, AD_DS_CCS
); /* flush posted write */
899 /* enable Master and Target abort interrupts */
900 ad1889_writel(chip
, AD_DMA_DISR
, AD_DMA_DISR_PMAE
| AD_DMA_DISR_PTAE
);
906 snd_ad1889_create(snd_card_t
*card
,
908 struct snd_ad1889
**rchip
)
912 struct snd_ad1889
*chip
;
913 static snd_device_ops_t ops
= {
914 .dev_free
= snd_ad1889_dev_free
,
919 if ((err
= pci_enable_device(pci
)) < 0)
922 /* check PCI availability (32bit DMA) */
923 if (pci_set_dma_mask(pci
, 0xffffffff) < 0 ||
924 pci_set_consistent_dma_mask(pci
, 0xffffffff) < 0) {
925 printk(KERN_ERR PFX
"error setting 32-bit DMA mask.\n");
926 pci_disable_device(pci
);
930 /* allocate chip specific data with zero-filled memory */
931 if ((chip
= kzalloc(sizeof(*chip
), GFP_KERNEL
)) == NULL
) {
932 pci_disable_device(pci
);
937 card
->private_data
= chip
;
941 /* (1) PCI resource allocation */
942 if ((err
= pci_request_regions(pci
, card
->driver
)) < 0)
945 chip
->bar
= pci_resource_start(pci
, 0);
946 chip
->iobase
= ioremap_nocache(chip
->bar
, pci_resource_len(pci
, 0));
947 if (chip
->iobase
== NULL
) {
948 printk(KERN_ERR PFX
"unable to reserve region.\n");
955 spin_lock_init(&chip
->lock
); /* only now can we call ad1889_free */
957 if (request_irq(pci
->irq
, snd_ad1889_interrupt
,
958 SA_INTERRUPT
|SA_SHIRQ
, card
->driver
, (void*)chip
)) {
959 printk(KERN_ERR PFX
"cannot obtain IRQ %d\n", pci
->irq
);
960 snd_ad1889_free(chip
);
964 chip
->irq
= pci
->irq
;
965 synchronize_irq(chip
->irq
);
967 /* (2) initialization of the chip hardware */
968 if ((err
= snd_ad1889_init(chip
)) < 0) {
969 snd_ad1889_free(chip
);
973 if ((err
= snd_device_new(card
, SNDRV_DEV_LOWLEVEL
, chip
, &ops
)) < 0) {
974 snd_ad1889_free(chip
);
978 snd_card_set_dev(card
, &pci
->dev
);
987 pci_disable_device(pci
);
993 snd_ad1889_probe(struct pci_dev
*pci
,
994 const struct pci_device_id
*pci_id
)
999 struct snd_ad1889
*chip
;
1002 if (devno
>= SNDRV_CARDS
)
1004 if (!enable
[devno
]) {
1010 card
= snd_card_new(index
[devno
], id
[devno
], THIS_MODULE
, 0);
1011 /* XXX REVISIT: we can probably allocate chip in this call */
1015 strcpy(card
->driver
, "AD1889");
1016 strcpy(card
->shortname
, "Analog Devices AD1889");
1019 err
= snd_ad1889_create(card
, pci
, &chip
);
1024 sprintf(card
->longname
, "%s at 0x%lx irq %i",
1025 card
->shortname
, chip
->bar
, chip
->irq
);
1028 /* register AC97 mixer */
1029 err
= snd_ad1889_ac97_init(chip
, ac97_quirk
[devno
]);
1033 err
= snd_ad1889_pcm_init(chip
, 0, NULL
);
1037 /* register proc interface */
1038 snd_ad1889_proc_init(chip
);
1041 err
= snd_card_register(card
);
1046 pci_set_drvdata(pci
, card
);
1052 snd_card_free(card
);
1056 static void __devexit
1057 snd_ad1889_remove(struct pci_dev
*pci
)
1059 snd_card_free(pci_get_drvdata(pci
));
1060 pci_set_drvdata(pci
, NULL
);
1063 static struct pci_device_id snd_ad1889_ids
[] = {
1064 { PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES
, PCI_DEVICE_ID_AD1889JS
) },
1067 MODULE_DEVICE_TABLE(pci
, snd_ad1889_ids
);
1069 static struct pci_driver ad1889_pci
= {
1070 .name
= "AD1889 Audio",
1071 .owner
= THIS_MODULE
,
1072 .id_table
= snd_ad1889_ids
,
1073 .probe
= snd_ad1889_probe
,
1074 .remove
= __devexit_p(snd_ad1889_remove
),
1078 alsa_ad1889_init(void)
1080 return pci_register_driver(&ad1889_pci
);
1084 alsa_ad1889_fini(void)
1086 pci_unregister_driver(&ad1889_pci
);
1089 module_init(alsa_ad1889_init
);
1090 module_exit(alsa_ad1889_fini
);