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 static struct snd_soc_dai_link sh7760_ac97_dai = { 20 .name = "AC97", 21 .stream_name = "AC97 HiFi", 22 .cpu_dai_name = "hac-dai.0", /* HAC0 */ 23 .codec_dai_name = "ac97-hifi", 24 .platform_name = "sh7760-pcm-audio", 25 .codec_name = "ac97-codec", 26 .ops = NULL, 27 }; 28 29 static struct snd_soc_card sh7760_ac97_soc_machine = { 30 .name = "SH7760 AC97", 31 .owner = THIS_MODULE, 32 .dai_link = &sh7760_ac97_dai, 33 .num_links = 1, 34 }; 35 36 static struct platform_device *sh7760_ac97_snd_device; 37 38 static int __init sh7760_ac97_init(void) 39 { 40 int ret; 41 unsigned short ipsel; 42 43 /* enable both AC97 controllers in pinmux reg */ 44 ipsel = __raw_readw(IPSEL); 45 __raw_writew(ipsel | (3 << 10), IPSEL); 46 47 ret = -ENOMEM; 48 sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); 49 if (!sh7760_ac97_snd_device) 50 goto out; 51 52 platform_set_drvdata(sh7760_ac97_snd_device, 53 &sh7760_ac97_soc_machine); 54 ret = platform_device_add(sh7760_ac97_snd_device); 55 56 if (ret) 57 platform_device_put(sh7760_ac97_snd_device); 58 59 out: 60 return ret; 61 } 62 63 static void __exit sh7760_ac97_exit(void) 64 { 65 platform_device_unregister(sh7760_ac97_snd_device); 66 } 67 68 module_init(sh7760_ac97_init); 69 module_exit(sh7760_ac97_exit); 70 71 MODULE_LICENSE("GPL"); 72 MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); 73 MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>"); 74