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Linux/sound/soc/au1x/db1200.c

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  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * DB1200/DB1300/DB1550 ASoC audio fabric support code.
  4  *
  5  * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
  6  *
  7  */
  8 
  9 #include <linux/module.h>
 10 #include <linux/moduleparam.h>
 11 #include <linux/timer.h>
 12 #include <linux/interrupt.h>
 13 #include <linux/platform_device.h>
 14 #include <sound/core.h>
 15 #include <sound/pcm.h>
 16 #include <sound/soc.h>
 17 #include <asm/mach-au1x00/au1000.h>
 18 #include <asm/mach-au1x00/au1xxx_psc.h>
 19 #include <asm/mach-au1x00/au1xxx_dbdma.h>
 20 #include <asm/mach-db1x00/bcsr.h>
 21 
 22 #include "../codecs/wm8731.h"
 23 #include "psc.h"
 24 
 25 static const struct platform_device_id db1200_pids[] = {
 26         {
 27                 .name           = "db1200-ac97",
 28                 .driver_data    = 0,
 29         }, {
 30                 .name           = "db1200-i2s",
 31                 .driver_data    = 1,
 32         }, {
 33                 .name           = "db1300-ac97",
 34                 .driver_data    = 2,
 35         }, {
 36                 .name           = "db1300-i2s",
 37                 .driver_data    = 3,
 38         }, {
 39                 .name           = "db1550-ac97",
 40                 .driver_data    = 4,
 41         }, {
 42                 .name           = "db1550-i2s",
 43                 .driver_data    = 5,
 44         },
 45         {},
 46 };
 47 
 48 /*-------------------------  AC97 PART  ---------------------------*/
 49 
 50 static struct snd_soc_dai_link db1200_ac97_dai = {
 51         .name           = "AC97",
 52         .stream_name    = "AC97 HiFi",
 53         .codec_dai_name = "ac97-hifi",
 54         .cpu_dai_name   = "au1xpsc_ac97.1",
 55         .platform_name  = "au1xpsc-pcm.1",
 56         .codec_name     = "ac97-codec.1",
 57 };
 58 
 59 static struct snd_soc_card db1200_ac97_machine = {
 60         .name           = "DB1200_AC97",
 61         .owner          = THIS_MODULE,
 62         .dai_link       = &db1200_ac97_dai,
 63         .num_links      = 1,
 64 };
 65 
 66 static struct snd_soc_dai_link db1300_ac97_dai = {
 67         .name           = "AC97",
 68         .stream_name    = "AC97 HiFi",
 69         .codec_dai_name = "wm9712-hifi",
 70         .cpu_dai_name   = "au1xpsc_ac97.1",
 71         .platform_name  = "au1xpsc-pcm.1",
 72         .codec_name     = "wm9712-codec.1",
 73 };
 74 
 75 static struct snd_soc_card db1300_ac97_machine = {
 76         .name           = "DB1300_AC97",
 77         .owner          = THIS_MODULE,
 78         .dai_link       = &db1300_ac97_dai,
 79         .num_links      = 1,
 80 };
 81 
 82 static struct snd_soc_card db1550_ac97_machine = {
 83         .name           = "DB1550_AC97",
 84         .owner          = THIS_MODULE,
 85         .dai_link       = &db1200_ac97_dai,
 86         .num_links      = 1,
 87 };
 88 
 89 /*-------------------------  I2S PART  ---------------------------*/
 90 
 91 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
 92 {
 93         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 94         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 95 
 96         /* WM8731 has its own 12MHz crystal */
 97         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
 98                                 12000000, SND_SOC_CLOCK_IN);
 99 
100         return 0;
101 }
102 
103 static const struct snd_soc_ops db1200_i2s_wm8731_ops = {
104         .startup        = db1200_i2s_startup,
105 };
106 
107 static struct snd_soc_dai_link db1200_i2s_dai = {
108         .name           = "WM8731",
109         .stream_name    = "WM8731 PCM",
110         .codec_dai_name = "wm8731-hifi",
111         .cpu_dai_name   = "au1xpsc_i2s.1",
112         .platform_name  = "au1xpsc-pcm.1",
113         .codec_name     = "wm8731.0-001b",
114         .dai_fmt        = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
115                           SND_SOC_DAIFMT_CBM_CFM,
116         .ops            = &db1200_i2s_wm8731_ops,
117 };
118 
119 static struct snd_soc_card db1200_i2s_machine = {
120         .name           = "DB1200_I2S",
121         .owner          = THIS_MODULE,
122         .dai_link       = &db1200_i2s_dai,
123         .num_links      = 1,
124 };
125 
126 static struct snd_soc_dai_link db1300_i2s_dai = {
127         .name           = "WM8731",
128         .stream_name    = "WM8731 PCM",
129         .codec_dai_name = "wm8731-hifi",
130         .cpu_dai_name   = "au1xpsc_i2s.2",
131         .platform_name  = "au1xpsc-pcm.2",
132         .codec_name     = "wm8731.0-001b",
133         .dai_fmt        = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
134                           SND_SOC_DAIFMT_CBM_CFM,
135         .ops            = &db1200_i2s_wm8731_ops,
136 };
137 
138 static struct snd_soc_card db1300_i2s_machine = {
139         .name           = "DB1300_I2S",
140         .owner          = THIS_MODULE,
141         .dai_link       = &db1300_i2s_dai,
142         .num_links      = 1,
143 };
144 
145 static struct snd_soc_dai_link db1550_i2s_dai = {
146         .name           = "WM8731",
147         .stream_name    = "WM8731 PCM",
148         .codec_dai_name = "wm8731-hifi",
149         .cpu_dai_name   = "au1xpsc_i2s.3",
150         .platform_name  = "au1xpsc-pcm.3",
151         .codec_name     = "wm8731.0-001b",
152         .dai_fmt        = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
153                           SND_SOC_DAIFMT_CBM_CFM,
154         .ops            = &db1200_i2s_wm8731_ops,
155 };
156 
157 static struct snd_soc_card db1550_i2s_machine = {
158         .name           = "DB1550_I2S",
159         .owner          = THIS_MODULE,
160         .dai_link       = &db1550_i2s_dai,
161         .num_links      = 1,
162 };
163 
164 /*-------------------------  COMMON PART  ---------------------------*/
165 
166 static struct snd_soc_card *db1200_cards[] = {
167         &db1200_ac97_machine,
168         &db1200_i2s_machine,
169         &db1300_ac97_machine,
170         &db1300_i2s_machine,
171         &db1550_ac97_machine,
172         &db1550_i2s_machine,
173 };
174 
175 static int db1200_audio_probe(struct platform_device *pdev)
176 {
177         const struct platform_device_id *pid = platform_get_device_id(pdev);
178         struct snd_soc_card *card;
179 
180         card = db1200_cards[pid->driver_data];
181         card->dev = &pdev->dev;
182         return devm_snd_soc_register_card(&pdev->dev, card);
183 }
184 
185 static struct platform_driver db1200_audio_driver = {
186         .driver = {
187                 .name   = "db1200-ac97",
188                 .pm     = &snd_soc_pm_ops,
189         },
190         .id_table       = db1200_pids,
191         .probe          = db1200_audio_probe,
192 };
193 
194 module_platform_driver(db1200_audio_driver);
195 
196 MODULE_LICENSE("GPL");
197 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
198 MODULE_AUTHOR("Manuel Lauss");
199 

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