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 .dai_link = &db1300_ac97_dai, 77 .num_links = 1, 78 }; 79 80 static struct snd_soc_card db1550_ac97_machine = { 81 .name = "DB1550_AC97", 82 .dai_link = &db1200_ac97_dai, 83 .num_links = 1, 84 }; 85 86 /*------------------------- I2S PART ---------------------------*/ 87 88 static int db1200_i2s_startup(struct snd_pcm_substream *substream) 89 { 90 struct snd_soc_pcm_runtime *rtd = substream->private_data; 91 struct snd_soc_dai *codec_dai = rtd->codec_dai; 92 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 93 int ret; 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 /* codec is bitclock and lrclk master */ 100 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J | 101 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); 102 if (ret < 0) 103 goto out; 104 105 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J | 106 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM); 107 if (ret < 0) 108 goto out; 109 110 ret = 0; 111 out: 112 return ret; 113 } 114 115 static struct snd_soc_ops db1200_i2s_wm8731_ops = { 116 .startup = db1200_i2s_startup, 117 }; 118 119 static struct snd_soc_dai_link db1200_i2s_dai = { 120 .name = "WM8731", 121 .stream_name = "WM8731 PCM", 122 .codec_dai_name = "wm8731-hifi", 123 .cpu_dai_name = "au1xpsc_i2s.1", 124 .platform_name = "au1xpsc-pcm.1", 125 .codec_name = "wm8731.0-001b", 126 .ops = &db1200_i2s_wm8731_ops, 127 }; 128 129 static struct snd_soc_card db1200_i2s_machine = { 130 .name = "DB1200_I2S", 131 .owner = THIS_MODULE, 132 .dai_link = &db1200_i2s_dai, 133 .num_links = 1, 134 }; 135 136 static struct snd_soc_dai_link db1300_i2s_dai = { 137 .name = "WM8731", 138 .stream_name = "WM8731 PCM", 139 .codec_dai_name = "wm8731-hifi", 140 .cpu_dai_name = "au1xpsc_i2s.2", 141 .platform_name = "au1xpsc-pcm.2", 142 .codec_name = "wm8731.0-001b", 143 .ops = &db1200_i2s_wm8731_ops, 144 }; 145 146 static struct snd_soc_card db1300_i2s_machine = { 147 .name = "DB1300_I2S", 148 .dai_link = &db1300_i2s_dai, 149 .num_links = 1, 150 }; 151 152 static struct snd_soc_dai_link db1550_i2s_dai = { 153 .name = "WM8731", 154 .stream_name = "WM8731 PCM", 155 .codec_dai_name = "wm8731-hifi", 156 .cpu_dai_name = "au1xpsc_i2s.3", 157 .platform_name = "au1xpsc-pcm.3", 158 .codec_name = "wm8731.0-001b", 159 .ops = &db1200_i2s_wm8731_ops, 160 }; 161 162 static struct snd_soc_card db1550_i2s_machine = { 163 .name = "DB1550_I2S", 164 .dai_link = &db1550_i2s_dai, 165 .num_links = 1, 166 }; 167 168 /*------------------------- COMMON PART ---------------------------*/ 169 170 static struct snd_soc_card *db1200_cards[] = { 171 &db1200_ac97_machine, 172 &db1200_i2s_machine, 173 &db1300_ac97_machine, 174 &db1300_i2s_machine, 175 &db1550_ac97_machine, 176 &db1550_i2s_machine, 177 }; 178 179 static int db1200_audio_probe(struct platform_device *pdev) 180 { 181 const struct platform_device_id *pid = platform_get_device_id(pdev); 182 struct snd_soc_card *card; 183 184 card = db1200_cards[pid->driver_data]; 185 card->dev = &pdev->dev; 186 return snd_soc_register_card(card); 187 } 188 189 static int db1200_audio_remove(struct platform_device *pdev) 190 { 191 struct snd_soc_card *card = platform_get_drvdata(pdev); 192 snd_soc_unregister_card(card); 193 return 0; 194 } 195 196 static struct platform_driver db1200_audio_driver = { 197 .driver = { 198 .name = "db1200-ac97", 199 .owner = THIS_MODULE, 200 .pm = &snd_soc_pm_ops, 201 }, 202 .id_table = db1200_pids, 203 .probe = db1200_audio_probe, 204 .remove = db1200_audio_remove, 205 }; 206 207 module_platform_driver(db1200_audio_driver); 208 209 MODULE_LICENSE("GPL"); 210 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support"); 211 MODULE_AUTHOR("Manuel Lauss"); 212