1 /* 2 * Generic AC97 sound support for SH7760 3 * 4 * (c) 2007 Manuel Lauss 5 * 6 * Licensed under the GPLv2. 7 */ 8 9 #include <linux/module.h> 10 #include <linux/moduleparam.h> 11 #include <linux/platform_device.h> 12 #include <sound/core.h> 13 #include <sound/pcm.h> 14 #include <sound/soc.h> 15 #include <asm/io.h> 16 17 #define IPSEL 0xFE400034 18 19 /* platform specific structs can be declared here */ 20 extern struct snd_soc_dai_driver sh4_hac_dai[2]; 21 extern struct snd_soc_platform_driver sh7760_soc_platform; 22 23 static struct snd_soc_dai_link sh7760_ac97_dai = { 24 .name = "AC97", 25 .stream_name = "AC97 HiFi", 26 .cpu_dai_name = "hac-dai.0", /* HAC0 */ 27 .codec_dai_name = "ac97-hifi", 28 .platform_name = "sh7760-pcm-audio", 29 .codec_name = "ac97-codec", 30 .ops = NULL, 31 }; 32 33 static struct snd_soc_card sh7760_ac97_soc_machine = { 34 .name = "SH7760 AC97", 35 .dai_link = &sh7760_ac97_dai, 36 .num_links = 1, 37 }; 38 39 static struct platform_device *sh7760_ac97_snd_device; 40 41 static int __init sh7760_ac97_init(void) 42 { 43 int ret; 44 unsigned short ipsel; 45 46 /* enable both AC97 controllers in pinmux reg */ 47 ipsel = __raw_readw(IPSEL); 48 __raw_writew(ipsel | (3 << 10), IPSEL); 49 50 ret = -ENOMEM; 51 sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); 52 if (!sh7760_ac97_snd_device) 53 goto out; 54 55 platform_set_drvdata(sh7760_ac97_snd_device, 56 &sh7760_ac97_soc_machine); 57 ret = platform_device_add(sh7760_ac97_snd_device); 58 59 if (ret) 60 platform_device_put(sh7760_ac97_snd_device); 61 62 out: 63 return ret; 64 } 65 66 static void __exit sh7760_ac97_exit(void) 67 { 68 platform_device_unregister(sh7760_ac97_snd_device); 69 } 70 71 module_init(sh7760_ac97_init); 72 module_exit(sh7760_ac97_exit); 73 74 MODULE_LICENSE("GPL"); 75 MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); 76 MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>"); 77