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
32static 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	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 16);
49	if (ret)
50		return ret;
51
52	return 0;
53}
54
55static struct snd_soc_ops imx_mc13783_hifi_ops = {
56	.hw_params = imx_mc13783_hifi_hw_params,
57};
58
59static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
60	{
61		.name = "MC13783",
62		.stream_name	 = "Sound",
63		.codec_dai_name	 = "mc13783-hifi",
64		.codec_name	 = "mc13783-codec",
65		.cpu_dai_name	 = "imx-ssi.0",
66		.platform_name	 = "imx-ssi.0",
67		.ops		 = &imx_mc13783_hifi_ops,
68		.symmetric_rates = 1,
69		.dai_fmt 	 = FMT_SSI,
70	},
71};
72
73static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
74	SND_SOC_DAPM_MIC("Mic", NULL),
75	SND_SOC_DAPM_HP("Headphone", NULL),
76	SND_SOC_DAPM_SPK("Speaker", NULL),
77};
78
79static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
80	{"Speaker", NULL, "LSP"},
81	{"Headphone", NULL, "HSL"},
82	{"Headphone", NULL, "HSR"},
83
84	{"MC1LIN", NULL, "MC1 Bias"},
85	{"MC2IN", NULL, "MC2 Bias"},
86	{"MC1 Bias", NULL, "Mic"},
87	{"MC2 Bias", NULL, "Mic"},
88};
89
90static struct snd_soc_card imx_mc13783 = {
91	.name		= "imx_mc13783",
92	.owner		= THIS_MODULE,
93	.dai_link	= imx_mc13783_dai_mc13783,
94	.num_links	= ARRAY_SIZE(imx_mc13783_dai_mc13783),
95	.dapm_widgets	= imx_mc13783_widget,
96	.num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
97	.dapm_routes	= imx_mc13783_routes,
98	.num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
99};
100
101static int imx_mc13783_probe(struct platform_device *pdev)
102{
103	int ret;
104
105	imx_mc13783.dev = &pdev->dev;
106
107	ret = snd_soc_register_card(&imx_mc13783);
108	if (ret) {
109		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
110			ret);
111		return ret;
112	}
113
114	if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
115		imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
116			IMX_AUDMUX_V2_PTCR_SYN,
117			IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
118			IMX_AUDMUX_V2_PDCR_MODE(1) |
119			IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
120		imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
121			IMX_AUDMUX_V2_PTCR_SYN |
122			IMX_AUDMUX_V2_PTCR_TFSDIR |
123			IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
124			IMX_AUDMUX_V2_PTCR_TCLKDIR |
125			IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
126			IMX_AUDMUX_V2_PTCR_RFSDIR |
127			IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
128			IMX_AUDMUX_V2_PTCR_RCLKDIR |
129			IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
130			IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
131	} else if (machine_is_mx27_3ds()) {
132		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
133			IMX_AUDMUX_V1_PCR_SYN |
134			IMX_AUDMUX_V1_PCR_TFSDIR |
135			IMX_AUDMUX_V1_PCR_TCLKDIR |
136			IMX_AUDMUX_V1_PCR_RFSDIR |
137			IMX_AUDMUX_V1_PCR_RCLKDIR |
138			IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
139			IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
140			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
141		);
142		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
143			IMX_AUDMUX_V1_PCR_SYN |
144			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
145		);
146	}
147
148	return ret;
149}
150
151static int imx_mc13783_remove(struct platform_device *pdev)
152{
153	snd_soc_unregister_card(&imx_mc13783);
154
155	return 0;
156}
157
158static struct platform_driver imx_mc13783_audio_driver = {
159	.driver = {
160		.name = "imx_mc13783",
161	},
162	.probe = imx_mc13783_probe,
163	.remove = imx_mc13783_remove
164};
165
166module_platform_driver(imx_mc13783_audio_driver);
167
168MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
169MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
170MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
171MODULE_LICENSE("GPL");
172MODULE_ALIAS("platform:imx_mc13783");
173