1 /* 2 * DB1200/DB1300/DB1550 ASoC audio fabric support code. 3 * 4 * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com> 5 * 6 */ 7 8 #include <linux/module.h> 9 #include <linux/moduleparam.h> 10 #include <linux/timer.h> 11 #include <linux/interrupt.h> 12 #include <linux/platform_device.h> 13 #include <sound/core.h> 14 #include <sound/pcm.h> 15 #include <sound/soc.h> 16 #include <asm/mach-au1x00/au1000.h> 17 #include <asm/mach-au1x00/au1xxx_psc.h> 18 #include <asm/mach-au1x00/au1xxx_dbdma.h> 19 #include <asm/mach-db1x00/bcsr.h> 20 21 #include "../codecs/wm8731.h" 22 #include "psc.h" 23 24 static const struct platform_device_id db1200_pids[] = { 25 { 26 .name = "db1200-ac97", 27 .driver_data = 0, 28 }, { 29 .name = "db1200-i2s", 30 .driver_data = 1, 31 }, { 32 .name = "db1300-ac97", 33 .driver_data = 2, 34 }, { 35 .name = "db1300-i2s", 36 .driver_data = 3, 37 }, { 38 .name = "db1550-ac97", 39 .driver_data = 4, 40 }, { 41 .name = "db1550-i2s", 42 .driver_data = 5, 43 }, 44 {}, 45 }; 46 47 /*------------------------- AC97 PART ---------------------------*/ 48 49 static struct snd_soc_dai_link db1200_ac97_dai = { 50 .name = "AC97", 51 .stream_name = "AC97 HiFi", 52 .codec_dai_name = "ac97-hifi", 53 .cpu_dai_name = "au1xpsc_ac97.1", 54 .platform_name = "au1xpsc-pcm.1", 55 .codec_name = "ac97-codec.1", 56 }; 57 58 static struct snd_soc_card db1200_ac97_machine = { 59 .name = "DB1200_AC97", 60 .owner = THIS_MODULE, 61 .dai_link = &db1200_ac97_dai, 62 .num_links = 1, 63 }; 64 65 static struct snd_soc_dai_link db1300_ac97_dai = { 66 .name = "AC97", 67 .stream_name = "AC97 HiFi", 68 .codec_dai_name = "wm9712-hifi", 69 .cpu_dai_name = "au1xpsc_ac97.1", 70 .platform_name = "au1xpsc-pcm.1", 71 .codec_name = "wm9712-codec.1", 72 }; 73 74 static struct snd_soc_card db1300_ac97_machine = { 75 .name = "DB1300_AC97", 76 .owner = THIS_MODULE, 77 .dai_link = &db1300_ac97_dai, 78 .num_links = 1, 79 }; 80 81 static struct snd_soc_card db1550_ac97_machine = { 82 .name = "DB1550_AC97", 83 .owner = THIS_MODULE, 84 .dai_link = &db1200_ac97_dai, 85 .num_links = 1, 86 }; 87 88 /*------------------------- I2S PART ---------------------------*/ 89 90 static int db1200_i2s_startup(struct snd_pcm_substream *substream) 91 { 92 struct snd_soc_pcm_runtime *rtd = substream->private_data; 93 struct snd_soc_dai *codec_dai = rtd->codec_dai; 94 95 /* WM8731 has its own 12MHz crystal */ 96 snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, 97 12000000, SND_SOC_CLOCK_IN); 98 99 return 0; 100 } 101 102 static struct snd_soc_ops db1200_i2s_wm8731_ops = { 103 .startup = db1200_i2s_startup, 104 }; 105 106 static struct snd_soc_dai_link db1200_i2s_dai = { 107 .name = "WM8731", 108 .stream_name = "WM8731 PCM", 109 .codec_dai_name = "wm8731-hifi", 110 .cpu_dai_name = "au1xpsc_i2s.1", 111 .platform_name = "au1xpsc-pcm.1", 112 .codec_name = "wm8731.0-001b", 113 .dai_fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF | 114 SND_SOC_DAIFMT_CBM_CFM, 115 .ops = &db1200_i2s_wm8731_ops, 116 }; 117 118 static struct snd_soc_card db1200_i2s_machine = { 119 .name = "DB1200_I2S", 120 .owner = THIS_MODULE, 121 .dai_link = &db1200_i2s_dai, 122 .num_links = 1, 123 }; 124 125 static struct snd_soc_dai_link db1300_i2s_dai = { 126 .name = "WM8731", 127 .stream_name = "WM8731 PCM", 128 .codec_dai_name = "wm8731-hifi", 129 .cpu_dai_name = "au1xpsc_i2s.2", 130 .platform_name = "au1xpsc-pcm.2", 131 .codec_name = "wm8731.0-001b", 132 .dai_fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF | 133 SND_SOC_DAIFMT_CBM_CFM, 134 .ops = &db1200_i2s_wm8731_ops, 135 }; 136 137 static struct snd_soc_card db1300_i2s_machine = { 138 .name = "DB1300_I2S", 139 .owner = THIS_MODULE, 140 .dai_link = &db1300_i2s_dai, 141 .num_links = 1, 142 }; 143 144 static struct snd_soc_dai_link db1550_i2s_dai = { 145 .name = "WM8731", 146 .stream_name = "WM8731 PCM", 147 .codec_dai_name = "wm8731-hifi", 148 .cpu_dai_name = "au1xpsc_i2s.3", 149 .platform_name = "au1xpsc-pcm.3", 150 .codec_name = "wm8731.0-001b", 151 .dai_fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF | 152 SND_SOC_DAIFMT_CBM_CFM, 153 .ops = &db1200_i2s_wm8731_ops, 154 }; 155 156 static struct snd_soc_card db1550_i2s_machine = { 157 .name = "DB1550_I2S", 158 .owner = THIS_MODULE, 159 .dai_link = &db1550_i2s_dai, 160 .num_links = 1, 161 }; 162 163 /*------------------------- COMMON PART ---------------------------*/ 164 165 static struct snd_soc_card *db1200_cards[] = { 166 &db1200_ac97_machine, 167 &db1200_i2s_machine, 168 &db1300_ac97_machine, 169 &db1300_i2s_machine, 170 &db1550_ac97_machine, 171 &db1550_i2s_machine, 172 }; 173 174 static int db1200_audio_probe(struct platform_device *pdev) 175 { 176 const struct platform_device_id *pid = platform_get_device_id(pdev); 177 struct snd_soc_card *card; 178 179 card = db1200_cards[pid->driver_data]; 180 card->dev = &pdev->dev; 181 return snd_soc_register_card(card); 182 } 183 184 static int db1200_audio_remove(struct platform_device *pdev) 185 { 186 struct snd_soc_card *card = platform_get_drvdata(pdev); 187 snd_soc_unregister_card(card); 188 return 0; 189 } 190 191 static struct platform_driver db1200_audio_driver = { 192 .driver = { 193 .name = "db1200-ac97", 194 .pm = &snd_soc_pm_ops, 195 }, 196 .id_table = db1200_pids, 197 .probe = db1200_audio_probe, 198 .remove = db1200_audio_remove, 199 }; 200 201 module_platform_driver(db1200_audio_driver); 202 203 MODULE_LICENSE("GPL"); 204 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support"); 205 MODULE_AUTHOR("Manuel Lauss"); 206