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 platform_device *pdev,
91 struct snd_soc_dai *dai)
93 return pxa2xx_ac97_hw_suspend();
96 static int pxa2xx_ac97_resume(struct platform_device *pdev,
97 struct snd_soc_dai *dai)
99 return pxa2xx_ac97_hw_resume();
103 #define pxa2xx_ac97_suspend NULL
104 #define pxa2xx_ac97_resume NULL
107 static int pxa2xx_ac97_probe(struct platform_device *pdev,
108 struct snd_soc_dai *dai)
110 return pxa2xx_ac97_hw_probe(pdev);
113 static void pxa2xx_ac97_remove(struct platform_device *pdev,
114 struct snd_soc_dai *dai)
116 pxa2xx_ac97_hw_remove(pdev);
119 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
120 struct snd_pcm_hw_params *params,
121 struct snd_soc_dai *dai)
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,
136 struct snd_soc_dai *dai)
138 struct snd_soc_pcm_runtime *rtd = substream->private_data;
139 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
141 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
142 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
144 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
149 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
150 struct snd_pcm_hw_params *params,
151 struct snd_soc_dai *dai)
153 struct snd_soc_pcm_runtime *rtd = substream->private_data;
154 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
156 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
159 cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
164 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
165 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
166 SNDRV_PCM_RATE_48000)
169 * There is only 1 physical AC97 interface for pxa2xx, but it
170 * has extra fifo's that can be used for aux DACs and ADCs.
172 struct snd_soc_dai pxa_ac97_dai[] = {
174 .name = "pxa2xx-ac97",
176 .type = SND_SOC_DAI_AC97,
177 .probe = pxa2xx_ac97_probe,
178 .remove = pxa2xx_ac97_remove,
179 .suspend = pxa2xx_ac97_suspend,
180 .resume = pxa2xx_ac97_resume,
182 .stream_name = "AC97 Playback",
185 .rates = PXA2XX_AC97_RATES,
186 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
188 .stream_name = "AC97 Capture",
191 .rates = PXA2XX_AC97_RATES,
192 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
194 .hw_params = pxa2xx_ac97_hw_params,},
197 .name = "pxa2xx-ac97-aux",
199 .type = SND_SOC_DAI_AC97,
201 .stream_name = "AC97 Aux Playback",
204 .rates = PXA2XX_AC97_RATES,
205 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
207 .stream_name = "AC97 Aux Capture",
210 .rates = PXA2XX_AC97_RATES,
211 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
213 .hw_params = pxa2xx_ac97_hw_aux_params,},
216 .name = "pxa2xx-ac97-mic",
218 .type = SND_SOC_DAI_AC97,
220 .stream_name = "AC97 Mic Capture",
223 .rates = PXA2XX_AC97_RATES,
224 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
226 .hw_params = pxa2xx_ac97_hw_mic_params,},
230 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
231 EXPORT_SYMBOL_GPL(soc_ac97_ops);
233 MODULE_AUTHOR("Nicolas Pitre");
234 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
235 MODULE_LICENSE("GPL");