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Miguel Aguilarb56e9722010-03-11 09:32:59 -06001/*
2 * ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
3 *
4 * Copyright (C) 2010 Texas Instruments, Inc
5 *
6 * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22#include <linux/module.h>
23#include <linux/moduleparam.h>
24#include <linux/init.h>
25#include <linux/io.h>
26#include <linux/delay.h>
27#include <linux/pm.h>
28#include <linux/platform_device.h>
29#include <linux/device.h>
Tejun Heo923a0042010-03-30 02:52:29 +090030#include <linux/slab.h>
Miguel Aguilarb56e9722010-03-11 09:32:59 -060031#include <linux/clk.h>
32#include <linux/mfd/davinci_voicecodec.h>
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000033#include <linux/spi/spi.h>
Miguel Aguilarb56e9722010-03-11 09:32:59 -060034
35#include <sound/core.h>
36#include <sound/pcm.h>
37#include <sound/pcm_params.h>
38#include <sound/soc.h>
Miguel Aguilarb56e9722010-03-11 09:32:59 -060039#include <sound/initval.h>
40
Miguel Aguilarb56e9722010-03-11 09:32:59 -060041static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
42 SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
43 SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
44};
45
46static int cq93vc_mute(struct snd_soc_dai *dai, int mute)
47{
48 struct snd_soc_codec *codec = dai->codec;
Mark Brown12019392013-08-31 13:38:16 +010049 u8 reg;
Miguel Aguilarb56e9722010-03-11 09:32:59 -060050
51 if (mute)
Mark Brown12019392013-08-31 13:38:16 +010052 reg = DAVINCI_VC_REG09_MUTE;
Miguel Aguilarb56e9722010-03-11 09:32:59 -060053 else
Mark Brown12019392013-08-31 13:38:16 +010054 reg = 0;
55
56 snd_soc_update_bits(codec, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
57 reg);
Miguel Aguilarb56e9722010-03-11 09:32:59 -060058
59 return 0;
60}
61
62static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
63 int clk_id, unsigned int freq, int dir)
64{
Miguel Aguilarb56e9722010-03-11 09:32:59 -060065 switch (freq) {
66 case 22579200:
67 case 27000000:
68 case 33868800:
Miguel Aguilarb56e9722010-03-11 09:32:59 -060069 return 0;
70 }
71
72 return -EINVAL;
73}
74
75static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
76 enum snd_soc_bias_level level)
77{
78 switch (level) {
79 case SND_SOC_BIAS_ON:
Mark Brown12019392013-08-31 13:38:16 +010080 snd_soc_write(codec, DAVINCI_VC_REG12,
Miguel Aguilarb56e9722010-03-11 09:32:59 -060081 DAVINCI_VC_REG12_POWER_ALL_ON);
82 break;
83 case SND_SOC_BIAS_PREPARE:
84 break;
85 case SND_SOC_BIAS_STANDBY:
Mark Brown12019392013-08-31 13:38:16 +010086 snd_soc_write(codec, DAVINCI_VC_REG12,
Miguel Aguilarb56e9722010-03-11 09:32:59 -060087 DAVINCI_VC_REG12_POWER_ALL_OFF);
88 break;
89 case SND_SOC_BIAS_OFF:
90 /* force all power off */
Mark Brown12019392013-08-31 13:38:16 +010091 snd_soc_write(codec, DAVINCI_VC_REG12,
Miguel Aguilarb56e9722010-03-11 09:32:59 -060092 DAVINCI_VC_REG12_POWER_ALL_OFF);
93 break;
94 }
Miguel Aguilarb56e9722010-03-11 09:32:59 -060095
96 return 0;
97}
98
99#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
100#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
101
Lars-Peter Clausen85e76522011-11-23 11:40:40 +0100102static const struct snd_soc_dai_ops cq93vc_dai_ops = {
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600103 .digital_mute = cq93vc_mute,
104 .set_sysclk = cq93vc_set_dai_sysclk,
105};
106
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000107static struct snd_soc_dai_driver cq93vc_dai = {
108 .name = "cq93vc-hifi",
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600109 .playback = {
110 .stream_name = "Playback",
111 .channels_min = 1,
112 .channels_max = 2,
113 .rates = CQ93VC_RATES,
114 .formats = CQ93VC_FORMATS,},
115 .capture = {
116 .stream_name = "Capture",
117 .channels_min = 1,
118 .channels_max = 2,
119 .rates = CQ93VC_RATES,
120 .formats = CQ93VC_FORMATS,},
121 .ops = &cq93vc_dai_ops,
122};
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600123
Xiubo Li7a34b1c2014-04-03 07:53:59 +0800124static struct regmap *cq93vc_get_regmap(struct device *dev)
Xiubo Li49101a22014-03-26 13:40:25 +0800125{
Arnd Bergmanna8784dd2014-04-30 11:06:29 +0200126 struct davinci_vc *davinci_vc = dev->platform_data;
Xiubo Li49101a22014-03-26 13:40:25 +0800127
128 return davinci_vc->regmap;
129}
130
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000131static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000132 .set_bias_level = cq93vc_set_bias_level,
Xiubo Li49101a22014-03-26 13:40:25 +0800133 .get_regmap = cq93vc_get_regmap,
Arnd Bergmann8180bd52016-09-22 11:37:32 +0200134 .component_driver = {
135 .controls = cq93vc_snd_controls,
136 .num_controls = ARRAY_SIZE(cq93vc_snd_controls),
137 },
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600138};
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600139
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000140static int cq93vc_platform_probe(struct platform_device *pdev)
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600141{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000142 return snd_soc_register_codec(&pdev->dev,
143 &soc_codec_dev_cq93vc, &cq93vc_dai, 1);
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600144}
145
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000146static int cq93vc_platform_remove(struct platform_device *pdev)
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600147{
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000148 snd_soc_unregister_codec(&pdev->dev);
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600149 return 0;
150}
151
152static struct platform_driver cq93vc_codec_driver = {
153 .driver = {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000154 .name = "cq93vc-codec",
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000155 },
156
157 .probe = cq93vc_platform_probe,
Bill Pemberton7a79e942012-12-07 09:26:37 -0500158 .remove = cq93vc_platform_remove,
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600159};
160
Mark Brown5bbcc3c2011-11-23 22:52:08 +0000161module_platform_driver(cq93vc_codec_driver);
Miguel Aguilarb56e9722010-03-11 09:32:59 -0600162
163MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
164MODULE_AUTHOR("Miguel Aguilar");
165MODULE_LICENSE("GPL");