2 * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
4 * Author: Nicolas Pitre
5 * Created: Dec 02, 2004
6 * Copyright: MontaVista Software Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
17 #include <sound/core.h>
18 #include <sound/ac97_codec.h>
19 #include <sound/soc.h>
20 #include <sound/pxa2xx-lib.h>
22 #include <mach/hardware.h>
23 #include <mach/pxa-regs.h>
25 #include "pxa2xx-pcm.h"
26 #include "pxa2xx-ac97.h"
28 static void pxa2xx_ac97_warm_reset(struct snd_ac97
*ac97
)
30 pxa2xx_ac97_try_warm_reset(ac97
);
32 pxa2xx_ac97_finish_reset(ac97
);
35 static void pxa2xx_ac97_cold_reset(struct snd_ac97
*ac97
)
37 pxa2xx_ac97_try_cold_reset(ac97
);
39 pxa2xx_ac97_finish_reset(ac97
);
42 struct snd_ac97_bus_ops soc_ac97_ops
= {
43 .read
= pxa2xx_ac97_read
,
44 .write
= pxa2xx_ac97_write
,
45 .warm_reset
= pxa2xx_ac97_warm_reset
,
46 .reset
= pxa2xx_ac97_cold_reset
,
49 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out
= {
50 .name
= "AC97 PCM Stereo out",
51 .dev_addr
= __PREG(PCDR
),
53 .dcmd
= DCMD_INCSRCADDR
| DCMD_FLOWTRG
|
54 DCMD_BURST32
| DCMD_WIDTH4
,
57 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in
= {
58 .name
= "AC97 PCM Stereo in",
59 .dev_addr
= __PREG(PCDR
),
61 .dcmd
= DCMD_INCTRGADDR
| DCMD_FLOWSRC
|
62 DCMD_BURST32
| DCMD_WIDTH4
,
65 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out
= {
66 .name
= "AC97 Aux PCM (Slot 5) Mono out",
67 .dev_addr
= __PREG(MODR
),
69 .dcmd
= DCMD_INCSRCADDR
| DCMD_FLOWTRG
|
70 DCMD_BURST16
| DCMD_WIDTH2
,
73 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in
= {
74 .name
= "AC97 Aux PCM (Slot 5) Mono in",
75 .dev_addr
= __PREG(MODR
),
77 .dcmd
= DCMD_INCTRGADDR
| DCMD_FLOWSRC
|
78 DCMD_BURST16
| DCMD_WIDTH2
,
81 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in
= {
82 .name
= "AC97 Mic PCM (Slot 6) Mono in",
83 .dev_addr
= __PREG(MCDR
),
85 .dcmd
= DCMD_INCTRGADDR
| DCMD_FLOWSRC
|
86 DCMD_BURST16
| DCMD_WIDTH2
,
90 static int pxa2xx_ac97_suspend(struct snd_soc_dai
*dai
)
92 return pxa2xx_ac97_hw_suspend();
95 static int pxa2xx_ac97_resume(struct snd_soc_dai
*dai
)
97 return pxa2xx_ac97_hw_resume();
101 #define pxa2xx_ac97_suspend NULL
102 #define pxa2xx_ac97_resume NULL
105 static int pxa2xx_ac97_probe(struct platform_device
*pdev
,
106 struct snd_soc_dai
*dai
)
108 return pxa2xx_ac97_hw_probe(pdev
);
111 static void pxa2xx_ac97_remove(struct platform_device
*pdev
,
112 struct snd_soc_dai
*dai
)
114 pxa2xx_ac97_hw_remove(pdev
);
117 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream
*substream
,
118 struct snd_pcm_hw_params
*params
,
119 struct snd_soc_dai
*dai
)
121 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
122 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
124 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
125 cpu_dai
->dma_data
= &pxa2xx_ac97_pcm_stereo_out
;
127 cpu_dai
->dma_data
= &pxa2xx_ac97_pcm_stereo_in
;
132 static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream
*substream
,
133 struct snd_pcm_hw_params
*params
,
134 struct snd_soc_dai
*dai
)
136 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
137 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
139 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
140 cpu_dai
->dma_data
= &pxa2xx_ac97_pcm_aux_mono_out
;
142 cpu_dai
->dma_data
= &pxa2xx_ac97_pcm_aux_mono_in
;
147 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream
*substream
,
148 struct snd_pcm_hw_params
*params
,
149 struct snd_soc_dai
*dai
)
151 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
152 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
154 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
157 cpu_dai
->dma_data
= &pxa2xx_ac97_pcm_mic_mono_in
;
162 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
163 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
164 SNDRV_PCM_RATE_48000)
167 * There is only 1 physical AC97 interface for pxa2xx, but it
168 * has extra fifo's that can be used for aux DACs and ADCs.
170 struct snd_soc_dai pxa_ac97_dai
[] = {
172 .name
= "pxa2xx-ac97",
175 .probe
= pxa2xx_ac97_probe
,
176 .remove
= pxa2xx_ac97_remove
,
177 .suspend
= pxa2xx_ac97_suspend
,
178 .resume
= pxa2xx_ac97_resume
,
180 .stream_name
= "AC97 Playback",
183 .rates
= PXA2XX_AC97_RATES
,
184 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,},
186 .stream_name
= "AC97 Capture",
189 .rates
= PXA2XX_AC97_RATES
,
190 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,},
192 .hw_params
= pxa2xx_ac97_hw_params
,},
195 .name
= "pxa2xx-ac97-aux",
199 .stream_name
= "AC97 Aux Playback",
202 .rates
= PXA2XX_AC97_RATES
,
203 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,},
205 .stream_name
= "AC97 Aux Capture",
208 .rates
= PXA2XX_AC97_RATES
,
209 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,},
211 .hw_params
= pxa2xx_ac97_hw_aux_params
,},
214 .name
= "pxa2xx-ac97-mic",
218 .stream_name
= "AC97 Mic Capture",
221 .rates
= PXA2XX_AC97_RATES
,
222 .formats
= SNDRV_PCM_FMTBIT_S16_LE
,},
224 .hw_params
= pxa2xx_ac97_hw_mic_params
,},
228 EXPORT_SYMBOL_GPL(pxa_ac97_dai
);
229 EXPORT_SYMBOL_GPL(soc_ac97_ops
);
231 static int __init
pxa_ac97_init(void)
233 return snd_soc_register_dais(pxa_ac97_dai
, ARRAY_SIZE(pxa_ac97_dai
));
235 module_init(pxa_ac97_init
);
237 static void __exit
pxa_ac97_exit(void)
239 snd_soc_unregister_dais(pxa_ac97_dai
, ARRAY_SIZE(pxa_ac97_dai
));
241 module_exit(pxa_ac97_exit
);
243 MODULE_AUTHOR("Nicolas Pitre");
244 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
245 MODULE_LICENSE("GPL");