| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | // |
| 3 | // Generic AC97 sound support for SH7760 |
| 4 | // |
| 5 | // (c) 2007 Manuel Lauss |
| 6 | |
| 7 | #include <linux/module.h> |
| 8 | #include <linux/moduleparam.h> |
| 9 | #include <linux/platform_device.h> |
| 10 | #include <sound/core.h> |
| 11 | #include <sound/pcm.h> |
| 12 | #include <sound/soc.h> |
| 13 | #include <asm/io.h> |
| 14 | |
| 15 | #define IPSEL 0xFE400034 |
| 16 | |
| 17 | static struct snd_soc_dai_link sh7760_ac97_dai = { |
| 18 | .name = "AC97", |
| 19 | .stream_name = "AC97 HiFi", |
| 20 | .cpu_dai_name = "hac-dai.0", /* HAC0 */ |
| 21 | .codec_dai_name = "ac97-hifi", |
| 22 | .platform_name = "sh7760-pcm-audio", |
| 23 | .codec_name = "ac97-codec", |
| 24 | .ops = NULL, |
| 25 | }; |
| 26 | |
| 27 | static struct snd_soc_card sh7760_ac97_soc_machine = { |
| 28 | .name = "SH7760 AC97", |
| 29 | .owner = THIS_MODULE, |
| 30 | .dai_link = &sh7760_ac97_dai, |
| 31 | .num_links = 1, |
| 32 | }; |
| 33 | |
| 34 | static struct platform_device *sh7760_ac97_snd_device; |
| 35 | |
| 36 | static int __init sh7760_ac97_init(void) |
| 37 | { |
| 38 | int ret; |
| 39 | unsigned short ipsel; |
| 40 | |
| 41 | /* enable both AC97 controllers in pinmux reg */ |
| 42 | ipsel = __raw_readw(IPSEL); |
| 43 | __raw_writew(ipsel | (3 << 10), IPSEL); |
| 44 | |
| 45 | ret = -ENOMEM; |
| 46 | sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); |
| 47 | if (!sh7760_ac97_snd_device) |
| 48 | goto out; |
| 49 | |
| 50 | platform_set_drvdata(sh7760_ac97_snd_device, |
| 51 | &sh7760_ac97_soc_machine); |
| 52 | ret = platform_device_add(sh7760_ac97_snd_device); |
| 53 | |
| 54 | if (ret) |
| 55 | platform_device_put(sh7760_ac97_snd_device); |
| 56 | |
| 57 | out: |
| 58 | return ret; |
| 59 | } |
| 60 | |
| 61 | static void __exit sh7760_ac97_exit(void) |
| 62 | { |
| 63 | platform_device_unregister(sh7760_ac97_snd_device); |
| 64 | } |
| 65 | |
| 66 | module_init(sh7760_ac97_init); |
| 67 | module_exit(sh7760_ac97_exit); |
| 68 | |
| 69 | MODULE_LICENSE("GPL v2"); |
| 70 | MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); |
| 71 | MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>"); |