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1 | /* |
2 | * eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode | |
3 | * | |
4 | * Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com> | |
5 | * | |
6 | * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c | |
7 | * which is Copyright 2009 Simtec Electronics | |
8 | * and on sound/soc/imx/phycore-ac97.c which is | |
9 | * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> | |
a23dc694 | 10 | * |
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11 | * This program is free software; you can redistribute it and/or modify it |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | * | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/moduleparam.h> | |
20 | #include <linux/device.h> | |
21 | #include <linux/i2c.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/soc.h> | |
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25 | #include <asm/mach-types.h> |
26 | ||
27 | #include "../codecs/tlv320aic23.h" | |
28 | #include "imx-ssi.h" | |
3c77c29c | 29 | #include "imx-audmux.h" |
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30 | |
31 | #define CODEC_CLOCK 12000000 | |
32 | ||
33 | static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream, | |
34 | struct snd_pcm_hw_params *params) | |
35 | { | |
36 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
add330ec SH |
37 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
38 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
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39 | int ret; |
40 | ||
41 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | | |
42 | SND_SOC_DAIFMT_NB_NF | | |
43 | SND_SOC_DAIFMT_CBM_CFM); | |
44 | if (ret) { | |
45 | pr_err("%s: failed set cpu dai format\n", __func__); | |
46 | return ret; | |
47 | } | |
48 | ||
49 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | | |
50 | SND_SOC_DAIFMT_NB_NF | | |
51 | SND_SOC_DAIFMT_CBM_CFM); | |
52 | if (ret) { | |
53 | pr_err("%s: failed set codec dai format\n", __func__); | |
54 | return ret; | |
55 | } | |
56 | ||
57 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, | |
58 | CODEC_CLOCK, SND_SOC_CLOCK_OUT); | |
59 | if (ret) { | |
60 | pr_err("%s: failed setting codec sysclk\n", __func__); | |
61 | return ret; | |
62 | } | |
43793207 | 63 | snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0); |
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64 | |
65 | ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, | |
66 | SND_SOC_CLOCK_IN); | |
67 | if (ret) { | |
68 | pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n"); | |
69 | return ret; | |
70 | } | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | static struct snd_soc_ops eukrea_tlv320_snd_ops = { | |
76 | .hw_params = eukrea_tlv320_hw_params, | |
77 | }; | |
78 | ||
79 | static struct snd_soc_dai_link eukrea_tlv320_dai = { | |
80 | .name = "tlv320aic23", | |
81 | .stream_name = "TLV320AIC23", | |
add330ec | 82 | .codec_dai_name = "tlv320aic23-hifi", |
2bf9d4bb | 83 | .platform_name = "imx-ssi.0", |
f0fba2ad | 84 | .codec_name = "tlv320aic23-codec.0-001a", |
add330ec | 85 | .cpu_dai_name = "imx-ssi.0", |
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86 | .ops = &eukrea_tlv320_snd_ops, |
87 | }; | |
88 | ||
89 | static struct snd_soc_card eukrea_tlv320 = { | |
90 | .name = "cpuimx-audio", | |
6aff8ccb | 91 | .owner = THIS_MODULE, |
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92 | .dai_link = &eukrea_tlv320_dai, |
93 | .num_links = 1, | |
94 | }; | |
95 | ||
a0a3d518 | 96 | static int eukrea_tlv320_probe(struct platform_device *pdev) |
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97 | { |
98 | int ret; | |
60282ede SG |
99 | int int_port = 0, ext_port; |
100 | ||
101 | if (machine_is_eukrea_cpuimx27()) { | |
af4872fb SG |
102 | imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, |
103 | IMX_AUDMUX_V1_PCR_SYN | | |
104 | IMX_AUDMUX_V1_PCR_TFSDIR | | |
105 | IMX_AUDMUX_V1_PCR_TCLKDIR | | |
106 | IMX_AUDMUX_V1_PCR_RFSDIR | | |
107 | IMX_AUDMUX_V1_PCR_RCLKDIR | | |
108 | IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | | |
109 | IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | | |
110 | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | |
60282ede | 111 | ); |
af4872fb SG |
112 | imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, |
113 | IMX_AUDMUX_V1_PCR_SYN | | |
114 | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) | |
60282ede SG |
115 | ); |
116 | } else if (machine_is_eukrea_cpuimx25sd() || | |
117 | machine_is_eukrea_cpuimx35sd() || | |
118 | machine_is_eukrea_cpuimx51sd()) { | |
119 | ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3; | |
af4872fb SG |
120 | imx_audmux_v2_configure_port(int_port, |
121 | IMX_AUDMUX_V2_PTCR_SYN | | |
122 | IMX_AUDMUX_V2_PTCR_TFSDIR | | |
123 | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | | |
124 | IMX_AUDMUX_V2_PTCR_TCLKDIR | | |
125 | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port), | |
126 | IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port) | |
60282ede | 127 | ); |
af4872fb SG |
128 | imx_audmux_v2_configure_port(ext_port, |
129 | IMX_AUDMUX_V2_PTCR_SYN, | |
130 | IMX_AUDMUX_V2_PDCR_RXDSEL(int_port) | |
60282ede SG |
131 | ); |
132 | } else { | |
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133 | /* return happy. We might run on a totally different machine */ |
134 | return 0; | |
60282ede | 135 | } |
91157888 | 136 | |
da75c924 FE |
137 | eukrea_tlv320.dev = &pdev->dev; |
138 | ret = snd_soc_register_card(&eukrea_tlv320); | |
139 | if (ret) | |
140 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); | |
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141 | |
142 | return ret; | |
143 | } | |
144 | ||
a0a3d518 | 145 | static int eukrea_tlv320_remove(struct platform_device *pdev) |
91157888 | 146 | { |
da75c924 FE |
147 | snd_soc_unregister_card(&eukrea_tlv320); |
148 | ||
149 | return 0; | |
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150 | } |
151 | ||
da75c924 FE |
152 | static struct platform_driver eukrea_tlv320_driver = { |
153 | .driver = { | |
154 | .name = "eukrea_tlv320", | |
155 | .owner = THIS_MODULE, | |
156 | }, | |
157 | .probe = eukrea_tlv320_probe, | |
a0a3d518 | 158 | .remove = eukrea_tlv320_remove,}; |
da75c924 FE |
159 | |
160 | module_platform_driver(eukrea_tlv320_driver); | |
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161 | |
162 | MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>"); | |
163 | MODULE_DESCRIPTION("CPUIMX ALSA SoC driver"); | |
164 | MODULE_LICENSE("GPL"); | |
da75c924 | 165 | MODULE_ALIAS("platform:eukrea_tlv320"); |