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841a451f JM |
1 | /* |
2 | * mx27vis-aic32x4.c | |
3 | * | |
4 | * Copyright 2011 Vista Silicon S.L. | |
5 | * | |
6 | * Author: Javier Martin <javier.martin@vista-silicon.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
21 | * MA 02110-1301, USA. | |
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
25 | #include <linux/moduleparam.h> | |
26 | #include <linux/device.h> | |
27 | #include <linux/i2c.h> | |
28 | #include <sound/core.h> | |
29 | #include <sound/pcm.h> | |
30 | #include <sound/soc.h> | |
31 | #include <sound/soc-dapm.h> | |
32 | #include <asm/mach-types.h> | |
33 | #include <mach/audmux.h> | |
34 | ||
35 | #include "../codecs/tlv320aic32x4.h" | |
36 | #include "imx-ssi.h" | |
37 | ||
38 | static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream, | |
39 | struct snd_pcm_hw_params *params) | |
40 | { | |
41 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
42 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
43 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
44 | int ret; | |
45 | u32 dai_format; | |
46 | ||
47 | dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | | |
48 | SND_SOC_DAIFMT_CBM_CFM; | |
49 | ||
50 | /* set codec DAI configuration */ | |
51 | snd_soc_dai_set_fmt(codec_dai, dai_format); | |
52 | ||
53 | /* set cpu DAI configuration */ | |
54 | snd_soc_dai_set_fmt(cpu_dai, dai_format); | |
55 | ||
56 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, | |
57 | 25000000, SND_SOC_CLOCK_OUT); | |
58 | if (ret) { | |
59 | pr_err("%s: failed setting codec sysclk\n", __func__); | |
60 | return ret; | |
61 | } | |
62 | ||
63 | ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, | |
64 | SND_SOC_CLOCK_IN); | |
65 | if (ret) { | |
66 | pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n"); | |
67 | return ret; | |
68 | } | |
69 | ||
70 | return 0; | |
71 | } | |
72 | ||
73 | static struct snd_soc_ops mx27vis_aic32x4_snd_ops = { | |
74 | .hw_params = mx27vis_aic32x4_hw_params, | |
75 | }; | |
76 | ||
77 | static struct snd_soc_dai_link mx27vis_aic32x4_dai = { | |
78 | .name = "tlv320aic32x4", | |
79 | .stream_name = "TLV320AIC32X4", | |
80 | .codec_dai_name = "tlv320aic32x4-hifi", | |
81 | .platform_name = "imx-pcm-audio.0", | |
82 | .codec_name = "tlv320aic32x4.0-0018", | |
83 | .cpu_dai_name = "imx-ssi.0", | |
84 | .ops = &mx27vis_aic32x4_snd_ops, | |
85 | }; | |
86 | ||
87 | static struct snd_soc_card mx27vis_aic32x4 = { | |
88 | .name = "visstrim_m10-audio", | |
6aff8ccb | 89 | .owner = THIS_MODULE, |
841a451f JM |
90 | .dai_link = &mx27vis_aic32x4_dai, |
91 | .num_links = 1, | |
92 | }; | |
93 | ||
94 | static struct platform_device *mx27vis_aic32x4_snd_device; | |
95 | ||
96 | static int __init mx27vis_aic32x4_init(void) | |
97 | { | |
98 | int ret; | |
99 | ||
100 | mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1); | |
101 | if (!mx27vis_aic32x4_snd_device) | |
102 | return -ENOMEM; | |
103 | ||
104 | platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4); | |
105 | ret = platform_device_add(mx27vis_aic32x4_snd_device); | |
106 | ||
107 | if (ret) { | |
108 | printk(KERN_ERR "ASoC: Platform device allocation failed\n"); | |
109 | platform_device_put(mx27vis_aic32x4_snd_device); | |
110 | } | |
111 | ||
112 | /* Connect SSI0 as clock slave to SSI1 external pins */ | |
113 | mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, | |
114 | MXC_AUDMUX_V1_PCR_SYN | | |
115 | MXC_AUDMUX_V1_PCR_TFSDIR | | |
116 | MXC_AUDMUX_V1_PCR_TCLKDIR | | |
117 | MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) | | |
118 | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) | |
119 | ); | |
120 | mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1, | |
121 | MXC_AUDMUX_V1_PCR_SYN | | |
122 | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) | |
123 | ); | |
124 | ||
125 | return ret; | |
126 | } | |
127 | ||
128 | static void __exit mx27vis_aic32x4_exit(void) | |
129 | { | |
130 | platform_device_unregister(mx27vis_aic32x4_snd_device); | |
131 | } | |
132 | ||
133 | module_init(mx27vis_aic32x4_init); | |
134 | module_exit(mx27vis_aic32x4_exit); | |
135 | ||
136 | MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>"); | |
137 | MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim"); | |
138 | MODULE_LICENSE("GPL"); |