Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 1 | /* |
| 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 Heo | 923a004 | 2010-03-30 02:52:29 +0900 | [diff] [blame] | 30 | #include <linux/slab.h> |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 31 | #include <linux/clk.h> |
| 32 | #include <linux/mfd/davinci_voicecodec.h> |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 33 | #include <linux/spi/spi.h> |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 34 | |
| 35 | #include <sound/core.h> |
| 36 | #include <sound/pcm.h> |
| 37 | #include <sound/pcm_params.h> |
| 38 | #include <sound/soc.h> |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 39 | #include <sound/initval.h> |
| 40 | |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 41 | static 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 | |
| 46 | static int cq93vc_mute(struct snd_soc_dai *dai, int mute) |
| 47 | { |
| 48 | struct snd_soc_codec *codec = dai->codec; |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 49 | u8 reg; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 50 | |
| 51 | if (mute) |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 52 | reg = DAVINCI_VC_REG09_MUTE; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 53 | else |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 54 | reg = 0; |
| 55 | |
| 56 | snd_soc_update_bits(codec, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE, |
| 57 | reg); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
| 63 | int clk_id, unsigned int freq, int dir) |
| 64 | { |
| 65 | struct snd_soc_codec *codec = codec_dai->codec; |
Mark Brown | 8ecb534 | 2013-08-31 13:51:38 +0100 | [diff] [blame] | 66 | struct davinci_vc *davinci_vc = codec->dev->platform_data; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 67 | |
| 68 | switch (freq) { |
| 69 | case 22579200: |
| 70 | case 27000000: |
| 71 | case 33868800: |
| 72 | davinci_vc->cq93vc.sysclk = freq; |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | return -EINVAL; |
| 77 | } |
| 78 | |
| 79 | static int cq93vc_set_bias_level(struct snd_soc_codec *codec, |
| 80 | enum snd_soc_bias_level level) |
| 81 | { |
| 82 | switch (level) { |
| 83 | case SND_SOC_BIAS_ON: |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 84 | snd_soc_write(codec, DAVINCI_VC_REG12, |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 85 | DAVINCI_VC_REG12_POWER_ALL_ON); |
| 86 | break; |
| 87 | case SND_SOC_BIAS_PREPARE: |
| 88 | break; |
| 89 | case SND_SOC_BIAS_STANDBY: |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 90 | snd_soc_write(codec, DAVINCI_VC_REG12, |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 91 | DAVINCI_VC_REG12_POWER_ALL_OFF); |
| 92 | break; |
| 93 | case SND_SOC_BIAS_OFF: |
| 94 | /* force all power off */ |
Mark Brown | 1201939 | 2013-08-31 13:38:16 +0100 | [diff] [blame] | 95 | snd_soc_write(codec, DAVINCI_VC_REG12, |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 96 | DAVINCI_VC_REG12_POWER_ALL_OFF); |
| 97 | break; |
| 98 | } |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 99 | codec->dapm.bias_level = level; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | #define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000) |
| 105 | #define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE) |
| 106 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 107 | static const struct snd_soc_dai_ops cq93vc_dai_ops = { |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 108 | .digital_mute = cq93vc_mute, |
| 109 | .set_sysclk = cq93vc_set_dai_sysclk, |
| 110 | }; |
| 111 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 112 | static struct snd_soc_dai_driver cq93vc_dai = { |
| 113 | .name = "cq93vc-hifi", |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 114 | .playback = { |
| 115 | .stream_name = "Playback", |
| 116 | .channels_min = 1, |
| 117 | .channels_max = 2, |
| 118 | .rates = CQ93VC_RATES, |
| 119 | .formats = CQ93VC_FORMATS,}, |
| 120 | .capture = { |
| 121 | .stream_name = "Capture", |
| 122 | .channels_min = 1, |
| 123 | .channels_max = 2, |
| 124 | .rates = CQ93VC_RATES, |
| 125 | .formats = CQ93VC_FORMATS,}, |
| 126 | .ops = &cq93vc_dai_ops, |
| 127 | }; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 128 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 129 | static int cq93vc_resume(struct snd_soc_codec *codec) |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 130 | { |
Mark Brown | 29e189c | 2010-05-07 20:30:00 +0100 | [diff] [blame] | 131 | cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 132 | |
| 133 | return 0; |
| 134 | } |
| 135 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 136 | static int cq93vc_probe(struct snd_soc_codec *codec) |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 137 | { |
Samuel Ortiz | cb5811c | 2011-04-06 16:39:45 +0200 | [diff] [blame] | 138 | struct davinci_vc *davinci_vc = codec->dev->platform_data; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 139 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 140 | davinci_vc->cq93vc.codec = codec; |
Mark Brown | d33c333 | 2013-08-31 13:52:41 +0100 | [diff] [blame] | 141 | |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 142 | /* Off, with power on */ |
| 143 | cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 148 | static int cq93vc_remove(struct snd_soc_codec *codec) |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 149 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 150 | cq93vc_set_bias_level(codec, SND_SOC_BIAS_OFF); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 151 | |
| 152 | return 0; |
| 153 | } |
| 154 | |
Xiubo Li | 7a34b1c | 2014-04-03 07:53:59 +0800 | [diff] [blame] | 155 | static struct regmap *cq93vc_get_regmap(struct device *dev) |
Xiubo Li | 49101a2 | 2014-03-26 13:40:25 +0800 | [diff] [blame] | 156 | { |
Arnd Bergmann | a8784dd | 2014-04-30 11:06:29 +0200 | [diff] [blame] | 157 | struct davinci_vc *davinci_vc = dev->platform_data; |
Xiubo Li | 49101a2 | 2014-03-26 13:40:25 +0800 | [diff] [blame] | 158 | |
| 159 | return davinci_vc->regmap; |
| 160 | } |
| 161 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 162 | static struct snd_soc_codec_driver soc_codec_dev_cq93vc = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 163 | .set_bias_level = cq93vc_set_bias_level, |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 164 | .probe = cq93vc_probe, |
| 165 | .remove = cq93vc_remove, |
| 166 | .resume = cq93vc_resume, |
Xiubo Li | 49101a2 | 2014-03-26 13:40:25 +0800 | [diff] [blame] | 167 | .get_regmap = cq93vc_get_regmap, |
Mark Brown | 6f88063 | 2013-08-31 13:46:05 +0100 | [diff] [blame] | 168 | .controls = cq93vc_snd_controls, |
| 169 | .num_controls = ARRAY_SIZE(cq93vc_snd_controls), |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 170 | }; |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 171 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 172 | static int cq93vc_platform_probe(struct platform_device *pdev) |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 173 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 174 | return snd_soc_register_codec(&pdev->dev, |
| 175 | &soc_codec_dev_cq93vc, &cq93vc_dai, 1); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 176 | } |
| 177 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 178 | static int cq93vc_platform_remove(struct platform_device *pdev) |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 179 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 180 | snd_soc_unregister_codec(&pdev->dev); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 181 | return 0; |
| 182 | } |
| 183 | |
| 184 | static struct platform_driver cq93vc_codec_driver = { |
| 185 | .driver = { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 186 | .name = "cq93vc-codec", |
| 187 | .owner = THIS_MODULE, |
| 188 | }, |
| 189 | |
| 190 | .probe = cq93vc_platform_probe, |
Bill Pemberton | 7a79e94 | 2012-12-07 09:26:37 -0500 | [diff] [blame] | 191 | .remove = cq93vc_platform_remove, |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 192 | }; |
| 193 | |
Mark Brown | 5bbcc3c | 2011-11-23 22:52:08 +0000 | [diff] [blame] | 194 | module_platform_driver(cq93vc_codec_driver); |
Miguel Aguilar | b56e972 | 2010-03-11 09:32:59 -0600 | [diff] [blame] | 195 | |
| 196 | MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver"); |
| 197 | MODULE_AUTHOR("Miguel Aguilar"); |
| 198 | MODULE_LICENSE("GPL"); |