projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| aef3b06a ML |
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/driver.h> | |
| 13 | #include <sound/core.h> | |
| 14 | #include <sound/pcm.h> | |
| 15 | #include <sound/soc.h> | |
| 16 | #include <sound/soc-dapm.h> | |
| 17 | #include <asm/io.h> | |
| 18 | ||
| 19 | #include "../codecs/ac97.h" | |
| 20 | ||
| 21 | #define IPSEL 0xFE400034 | |
| 22 | ||
| 23 | /* platform specific structs can be declared here */ | |
| 24 | extern struct snd_soc_cpu_dai sh4_hac_dai[2]; | |
| 25 | extern struct snd_soc_platform sh7760_soc_platform; | |
| 26 | ||
| 27 | static int machine_init(struct snd_soc_codec *codec) | |
| 28 | { | |
| 29 | snd_soc_dapm_sync_endpoints(codec); | |
| 30 | return 0; | |
| 31 | } | |
| 32 | ||
| 33 | static struct snd_soc_dai_link sh7760_ac97_dai = { | |
| 34 | .name = "AC97", | |
| 35 | .stream_name = "AC97 HiFi", | |
| 36 | .cpu_dai = &sh4_hac_dai[0], /* HAC0 */ | |
| 37 | .codec_dai = &ac97_dai, | |
| 38 | .init = machine_init, | |
| 39 | .ops = NULL, | |
| 40 | }; | |
| 41 | ||
| 42 | static struct snd_soc_machine sh7760_ac97_soc_machine = { | |
| 43 | .name = "SH7760 AC97", | |
| 44 | .dai_link = &sh7760_ac97_dai, | |
| 45 | .num_links = 1, | |
| 46 | }; | |
| 47 | ||
| 48 | static struct snd_soc_device sh7760_ac97_snd_devdata = { | |
| 49 | .machine = &sh7760_ac97_soc_machine, | |
| 50 | .platform = &sh7760_soc_platform, | |
| 51 | .codec_dev = &soc_codec_dev_ac97, | |
| 52 | }; | |
| 53 | ||
| 54 | static struct platform_device *sh7760_ac97_snd_device; | |
| 55 | ||
| 56 | static int __init sh7760_ac97_init(void) | |
| 57 | { | |
| 58 | int ret; | |
| 59 | unsigned short ipsel; | |
| 60 | ||
| 61 | /* enable both AC97 controllers in pinmux reg */ | |
| 62 | ipsel = ctrl_inw(IPSEL); | |
| 63 | ctrl_outw(ipsel | (3 << 10), IPSEL); | |
| 64 | ||
| 65 | ret = -ENOMEM; | |
| 66 | sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); | |
| 67 | if (!sh7760_ac97_snd_device) | |
| 68 | goto out; | |
| 69 | ||
| 70 | platform_set_drvdata(sh7760_ac97_snd_device, | |
| 71 | &sh7760_ac97_snd_devdata); | |
| 72 | sh7760_ac97_snd_devdata.dev = &sh7760_ac97_snd_device->dev; | |
| 73 | ret = platform_device_add(sh7760_ac97_snd_device); | |
| 74 | ||
| 75 | if (ret) | |
| 76 | platform_device_put(sh7760_ac97_snd_device); | |
| 77 | ||
| 78 | out: | |
| 79 | return ret; | |
| 80 | } | |
| 81 | ||
| 82 | static void __exit sh7760_ac97_exit(void) | |
| 83 | { | |
| 84 | platform_device_unregister(sh7760_ac97_snd_device); | |
| 85 | } | |
| 86 | ||
| 87 | module_init(sh7760_ac97_init); | |
| 88 | module_exit(sh7760_ac97_exit); | |
| 89 | ||
| 90 | MODULE_LICENSE("GPL"); | |
| 91 | MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); | |
| 92 | MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>"); |