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 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 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 95 int ret; 96 97 /* WM8731 has its own 12MHz crystal */ 98 snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, 99 12000000, SND_SOC_CLOCK_IN); 100 101 /* codec is bitclock and lrclk master */ 102 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J | 103 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); 104 if (ret < 0) 105 goto out; 106 107 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J | 108 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); 109 if (ret < 0) 110 goto out; 111 112 ret = 0; 113 out: 114 return ret; 115 } 116 117 static struct snd_soc_ops db1200_i2s_wm8731_ops = { 118 .startup = db1200_i2s_startup, 119 }; 120 121 static struct snd_soc_dai_link db1200_i2s_dai = { 122 .name = "WM8731", 123 .stream_name = "WM8731 PCM", 124 .codec_dai_name = "wm8731-hifi", 125 .cpu_dai_name = "au1xpsc_i2s.1", 126 .platform_name = "au1xpsc-pcm.1", 127 .codec_name = "wm8731.0-001b", 128 .ops = &db1200_i2s_wm8731_ops, 129 }; 130 131 static struct snd_soc_card db1200_i2s_machine = { 132 .name = "DB1200_I2S", 133 .owner = THIS_MODULE, 134 .dai_link = &db1200_i2s_dai, 135 .num_links = 1, 136 }; 137 138 static struct snd_soc_dai_link db1300_i2s_dai = { 139 .name = "WM8731", 140 .stream_name = "WM8731 PCM", 141 .codec_dai_name = "wm8731-hifi", 142 .cpu_dai_name = "au1xpsc_i2s.2", 143 .platform_name = "au1xpsc-pcm.2", 144 .codec_name = "wm8731.0-001b", 145 .ops = &db1200_i2s_wm8731_ops, 146 }; 147 148 static struct snd_soc_card db1300_i2s_machine = { 149 .name = "DB1300_I2S", 150 .owner = THIS_MODULE, 151 .dai_link = &db1300_i2s_dai, 152 .num_links = 1, 153 }; 154 155 static struct snd_soc_dai_link db1550_i2s_dai = { 156 .name = "WM8731", 157 .stream_name = "WM8731 PCM", 158 .codec_dai_name = "wm8731-hifi", 159 .cpu_dai_name = "au1xpsc_i2s.3", 160 .platform_name = "au1xpsc-pcm.3", 161 .codec_name = "wm8731.0-001b", 162 .ops = &db1200_i2s_wm8731_ops, 163 }; 164 165 static struct snd_soc_card db1550_i2s_machine = { 166 .name = "DB1550_I2S", 167 .owner = THIS_MODULE, 168 .dai_link = &db1550_i2s_dai, 169 .num_links = 1, 170 }; 171 172 /*------------------------- COMMON PART ---------------------------*/ 173 174 static struct snd_soc_card *db1200_cards[] = { 175 &db1200_ac97_machine, 176 &db1200_i2s_machine, 177 &db1300_ac97_machine, 178 &db1300_i2s_machine, 179 &db1550_ac97_machine, 180 &db1550_i2s_machine, 181 }; 182 183 static int db1200_audio_probe(struct platform_device *pdev) 184 { 185 const struct platform_device_id *pid = platform_get_device_id(pdev); 186 struct snd_soc_card *card; 187 188 card = db1200_cards[pid->driver_data]; 189 card->dev = &pdev->dev; 190 return snd_soc_register_card(card); 191 } 192 193 static int db1200_audio_remove(struct platform_device *pdev) 194 { 195 struct snd_soc_card *card = platform_get_drvdata(pdev); 196 snd_soc_unregister_card(card); 197 return 0; 198 } 199 200 static struct platform_driver db1200_audio_driver = { 201 .driver = { 202 .name = "db1200-ac97", 203 .pm = &snd_soc_pm_ops, 204 }, 205 .id_table = db1200_pids, 206 .probe = db1200_audio_probe, 207 .remove = db1200_audio_remove, 208 }; 209 210 module_platform_driver(db1200_audio_driver); 211 212 MODULE_LICENSE("GPL"); 213 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support"); 214 MODULE_AUTHOR("Manuel Lauss"); 215