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 | SND_SOC_DAILINK_DEFS(ac97, |
18 | DAILINK_COMP_ARRAY(COMP_CPU("hac-dai.0" )), /* HAC0 */ |
19 | DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec" , "ac97-hifi" )), |
20 | DAILINK_COMP_ARRAY(COMP_PLATFORM("sh7760-pcm-audio" ))); |
21 | |
22 | static struct snd_soc_dai_link sh7760_ac97_dai = { |
23 | .name = "AC97" , |
24 | .stream_name = "AC97 HiFi" , |
25 | SND_SOC_DAILINK_REG(ac97), |
26 | }; |
27 | |
28 | static struct snd_soc_card sh7760_ac97_soc_machine = { |
29 | .name = "SH7760 AC97" , |
30 | .owner = THIS_MODULE, |
31 | .dai_link = &sh7760_ac97_dai, |
32 | .num_links = 1, |
33 | }; |
34 | |
35 | static struct platform_device *sh7760_ac97_snd_device; |
36 | |
37 | static int __init sh7760_ac97_init(void) |
38 | { |
39 | int ret; |
40 | unsigned short ipsel; |
41 | |
42 | /* enable both AC97 controllers in pinmux reg */ |
43 | ipsel = __raw_readw(IPSEL); |
44 | __raw_writew(val: ipsel | (3 << 10), IPSEL); |
45 | |
46 | ret = -ENOMEM; |
47 | sh7760_ac97_snd_device = platform_device_alloc(name: "soc-audio" , id: -1); |
48 | if (!sh7760_ac97_snd_device) |
49 | goto out; |
50 | |
51 | platform_set_drvdata(pdev: sh7760_ac97_snd_device, |
52 | data: &sh7760_ac97_soc_machine); |
53 | ret = platform_device_add(pdev: sh7760_ac97_snd_device); |
54 | |
55 | if (ret) |
56 | platform_device_put(pdev: sh7760_ac97_snd_device); |
57 | |
58 | out: |
59 | return ret; |
60 | } |
61 | |
62 | static void __exit sh7760_ac97_exit(void) |
63 | { |
64 | platform_device_unregister(sh7760_ac97_snd_device); |
65 | } |
66 | |
67 | module_init(sh7760_ac97_init); |
68 | module_exit(sh7760_ac97_exit); |
69 | |
70 | MODULE_LICENSE("GPL v2" ); |
71 | MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine" ); |
72 | MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>" ); |
73 | |