1 /*
2 * imx-mc13783.c -- SoC audio for imx based boards with mc13783 codec
3 *
4 * Copyright 2012 Philippe Retornaz, <philippe.retornaz@epfl.ch>
5 *
6 * Heavly based on phycore-mc13783:
7 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/device.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/soc.h>
22 #include <sound/soc-dapm.h>
23 #include <asm/mach-types.h>
24
25 #include "../codecs/mc13783.h"
26 #include "imx-ssi.h"
27 #include "imx-audmux.h"
28
29 #define FMT_SSI (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | \
30 SND_SOC_DAIFMT_CBM_CFM)
31
imx_mc13783_hifi_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)32 static int imx_mc13783_hifi_hw_params(struct snd_pcm_substream *substream,
33 struct snd_pcm_hw_params *params)
34 {
35 struct snd_soc_pcm_runtime *rtd = substream->private_data;
36 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
37 struct snd_soc_dai *codec_dai = rtd->codec_dai;
38 int ret;
39
40 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 4, 16);
41 if (ret)
42 return ret;
43
44 ret = snd_soc_dai_set_sysclk(codec_dai, MC13783_CLK_CLIA, 26000000, 0);
45 if (ret)
46 return ret;
47
48 return snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
49 }
50
51 static const struct snd_soc_ops imx_mc13783_hifi_ops = {
52 .hw_params = imx_mc13783_hifi_hw_params,
53 };
54
55 static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
56 {
57 .name = "MC13783",
58 .stream_name = "Sound",
59 .codec_dai_name = "mc13783-hifi",
60 .codec_name = "mc13783-codec",
61 .cpu_dai_name = "imx-ssi.0",
62 .platform_name = "imx-ssi.0",
63 .ops = &imx_mc13783_hifi_ops,
64 .symmetric_rates = 1,
65 .dai_fmt = FMT_SSI,
66 },
67 };
68
69 static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
70 SND_SOC_DAPM_MIC("Mic", NULL),
71 SND_SOC_DAPM_HP("Headphone", NULL),
72 SND_SOC_DAPM_SPK("Speaker", NULL),
73 };
74
75 static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
76 {"Speaker", NULL, "LSP"},
77 {"Headphone", NULL, "HSL"},
78 {"Headphone", NULL, "HSR"},
79
80 {"MC1LIN", NULL, "MC1 Bias"},
81 {"MC2IN", NULL, "MC2 Bias"},
82 {"MC1 Bias", NULL, "Mic"},
83 {"MC2 Bias", NULL, "Mic"},
84 };
85
86 static struct snd_soc_card imx_mc13783 = {
87 .name = "imx_mc13783",
88 .owner = THIS_MODULE,
89 .dai_link = imx_mc13783_dai_mc13783,
90 .num_links = ARRAY_SIZE(imx_mc13783_dai_mc13783),
91 .dapm_widgets = imx_mc13783_widget,
92 .num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
93 .dapm_routes = imx_mc13783_routes,
94 .num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
95 };
96
imx_mc13783_probe(struct platform_device * pdev)97 static int imx_mc13783_probe(struct platform_device *pdev)
98 {
99 int ret;
100
101 imx_mc13783.dev = &pdev->dev;
102
103 ret = snd_soc_register_card(&imx_mc13783);
104 if (ret) {
105 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
106 ret);
107 return ret;
108 }
109
110 if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
111 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
112 IMX_AUDMUX_V2_PTCR_SYN,
113 IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
114 IMX_AUDMUX_V2_PDCR_MODE(1) |
115 IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
116 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
117 IMX_AUDMUX_V2_PTCR_SYN |
118 IMX_AUDMUX_V2_PTCR_TFSDIR |
119 IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
120 IMX_AUDMUX_V2_PTCR_TCLKDIR |
121 IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
122 IMX_AUDMUX_V2_PTCR_RFSDIR |
123 IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
124 IMX_AUDMUX_V2_PTCR_RCLKDIR |
125 IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
126 IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
127 } else if (machine_is_mx27_3ds()) {
128 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
129 IMX_AUDMUX_V1_PCR_SYN |
130 IMX_AUDMUX_V1_PCR_TFSDIR |
131 IMX_AUDMUX_V1_PCR_TCLKDIR |
132 IMX_AUDMUX_V1_PCR_RFSDIR |
133 IMX_AUDMUX_V1_PCR_RCLKDIR |
134 IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
135 IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
136 IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
137 );
138 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
139 IMX_AUDMUX_V1_PCR_SYN |
140 IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
141 );
142 }
143
144 return ret;
145 }
146
imx_mc13783_remove(struct platform_device * pdev)147 static int imx_mc13783_remove(struct platform_device *pdev)
148 {
149 snd_soc_unregister_card(&imx_mc13783);
150
151 return 0;
152 }
153
154 static struct platform_driver imx_mc13783_audio_driver = {
155 .driver = {
156 .name = "imx_mc13783",
157 },
158 .probe = imx_mc13783_probe,
159 .remove = imx_mc13783_remove
160 };
161
162 module_platform_driver(imx_mc13783_audio_driver);
163
164 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
165 MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
166 MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
167 MODULE_LICENSE("GPL");
168 MODULE_ALIAS("platform:imx_mc13783");
169
