Commit | Line | Data |
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5452030c | 1 | /* |
bf7c6e6c | 2 | * ALSA SoC codec driver for HDMI audio codecs. |
5452030c RN |
3 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ |
4 | * Author: Ricardo Neri <ricardo.neri@ti.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA | |
19 | * | |
20 | */ | |
21 | #include <linux/module.h> | |
22 | #include <sound/soc.h> | |
0f7f3d1f | 23 | #include <linux/of_device.h> |
5452030c RN |
24 | |
25 | #define DRV_NAME "hdmi-audio-codec" | |
26 | ||
c34e51b1 MB |
27 | static const struct snd_soc_dapm_widget hdmi_widgets[] = { |
28 | SND_SOC_DAPM_INPUT("RX"), | |
29 | SND_SOC_DAPM_OUTPUT("TX"), | |
30 | }; | |
31 | ||
32 | static const struct snd_soc_dapm_route hdmi_routes[] = { | |
33 | { "Capture", NULL, "RX" }, | |
34 | { "TX", NULL, "Playback" }, | |
35 | }; | |
5452030c | 36 | |
bf7c6e6c BS |
37 | static struct snd_soc_dai_driver hdmi_codec_dai = { |
38 | .name = "hdmi-hifi", | |
5452030c | 39 | .playback = { |
c34e51b1 | 40 | .stream_name = "Playback", |
5452030c RN |
41 | .channels_min = 2, |
42 | .channels_max = 8, | |
43 | .rates = SNDRV_PCM_RATE_32000 | | |
44 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | | |
45 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | | |
46 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, | |
47 | .formats = SNDRV_PCM_FMTBIT_S16_LE | | |
c600e953 | 48 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, |
5452030c | 49 | }, |
c6c0925e | 50 | .capture = { |
c34e51b1 | 51 | .stream_name = "Capture", |
c6c0925e RY |
52 | .channels_min = 2, |
53 | .channels_max = 2, | |
54 | .rates = SNDRV_PCM_RATE_32000 | | |
55 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | | |
56 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | | |
57 | SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000, | |
58 | .formats = SNDRV_PCM_FMTBIT_S16_LE | | |
59 | SNDRV_PCM_FMTBIT_S24_LE, | |
60 | }, | |
61 | ||
5452030c RN |
62 | }; |
63 | ||
0f7f3d1f JS |
64 | #ifdef CONFIG_OF |
65 | static const struct of_device_id hdmi_audio_codec_ids[] = { | |
66 | { .compatible = "linux,hdmi-audio", }, | |
67 | { } | |
68 | }; | |
69 | MODULE_DEVICE_TABLE(of, hdmi_audio_codec_ids); | |
70 | #endif | |
71 | ||
c34e51b1 MB |
72 | static struct snd_soc_codec_driver hdmi_codec = { |
73 | .dapm_widgets = hdmi_widgets, | |
74 | .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), | |
75 | .dapm_routes = hdmi_routes, | |
76 | .num_dapm_routes = ARRAY_SIZE(hdmi_routes), | |
77 | }; | |
78 | ||
bf7c6e6c | 79 | static int hdmi_codec_probe(struct platform_device *pdev) |
5452030c | 80 | { |
bf7c6e6c BS |
81 | return snd_soc_register_codec(&pdev->dev, &hdmi_codec, |
82 | &hdmi_codec_dai, 1); | |
5452030c RN |
83 | } |
84 | ||
bf7c6e6c | 85 | static int hdmi_codec_remove(struct platform_device *pdev) |
5452030c RN |
86 | { |
87 | snd_soc_unregister_codec(&pdev->dev); | |
88 | return 0; | |
89 | } | |
90 | ||
bf7c6e6c | 91 | static struct platform_driver hdmi_codec_driver = { |
5452030c RN |
92 | .driver = { |
93 | .name = DRV_NAME, | |
94 | .owner = THIS_MODULE, | |
0f7f3d1f | 95 | .of_match_table = of_match_ptr(hdmi_audio_codec_ids), |
5452030c RN |
96 | }, |
97 | ||
bf7c6e6c BS |
98 | .probe = hdmi_codec_probe, |
99 | .remove = hdmi_codec_remove, | |
5452030c RN |
100 | }; |
101 | ||
bf7c6e6c | 102 | module_platform_driver(hdmi_codec_driver); |
5452030c RN |
103 | |
104 | MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>"); | |
bf7c6e6c | 105 | MODULE_DESCRIPTION("ASoC generic HDMI codec driver"); |
5452030c RN |
106 | MODULE_LICENSE("GPL"); |
107 | MODULE_ALIAS("platform:" DRV_NAME); |