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>
24 #include <mach/regs-ac97.h>
26 #include "pxa2xx-pcm.h"
27 #include "pxa2xx-ac97.h"
29 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
31 pxa2xx_ac97_try_warm_reset(ac97);
33 pxa2xx_ac97_finish_reset(ac97);
36 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
38 pxa2xx_ac97_try_cold_reset(ac97);
40 pxa2xx_ac97_finish_reset(ac97);
43 struct snd_ac97_bus_ops soc_ac97_ops = {
44 .read = pxa2xx_ac97_read,
45 .write = pxa2xx_ac97_write,
46 .warm_reset = pxa2xx_ac97_warm_reset,
47 .reset = pxa2xx_ac97_cold_reset,
50 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
51 .name = "AC97 PCM Stereo out",
52 .dev_addr = __PREG(PCDR),
54 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
55 DCMD_BURST32 | DCMD_WIDTH4,
58 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
59 .name = "AC97 PCM Stereo in",
60 .dev_addr = __PREG(PCDR),
62 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
63 DCMD_BURST32 | DCMD_WIDTH4,
66 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
67 .name = "AC97 Aux PCM (Slot 5) Mono out",
68 .dev_addr = __PREG(MODR),
70 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
71 DCMD_BURST16 | DCMD_WIDTH2,
74 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
75 .name = "AC97 Aux PCM (Slot 5) Mono in",
76 .dev_addr = __PREG(MODR),
78 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
79 DCMD_BURST16 | DCMD_WIDTH2,
82 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
83 .name = "AC97 Mic PCM (Slot 6) Mono in",
84 .dev_addr = __PREG(MCDR),
86 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
87 DCMD_BURST16 | DCMD_WIDTH2,
91 static int pxa2xx_ac97_suspend(struct platform_device *pdev,
92 struct snd_soc_dai *dai)
94 return pxa2xx_ac97_hw_suspend();
97 static int pxa2xx_ac97_resume(struct platform_device *pdev,
98 struct snd_soc_dai *dai)
100 return pxa2xx_ac97_hw_resume();
104 #define pxa2xx_ac97_suspend NULL
105 #define pxa2xx_ac97_resume NULL
108 static int pxa2xx_ac97_probe(struct platform_device *pdev,
109 struct snd_soc_dai *dai)
111 return pxa2xx_ac97_hw_probe(pdev);
114 static void pxa2xx_ac97_remove(struct platform_device *pdev,
115 struct snd_soc_dai *dai)
117 pxa2xx_ac97_hw_remove(pdev);
120 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
121 struct snd_pcm_hw_params *params)
123 struct snd_soc_pcm_runtime *rtd = substream->private_data;
124 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
126 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
127 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
129 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
134 static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
135 struct snd_pcm_hw_params *params)
137 struct snd_soc_pcm_runtime *rtd = substream->private_data;
138 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
140 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
141 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
143 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
148 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
149 struct snd_pcm_hw_params *params)
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",
174 .type = SND_SOC_DAI_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",
197 .type = SND_SOC_DAI_AC97,
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",
216 .type = SND_SOC_DAI_AC97,
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 MODULE_AUTHOR("Nicolas Pitre");
232 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
233 MODULE_LICENSE("GPL");