sound/soc/tegra/trimslice.c

   1 /*
   2  * trimslice.c - TrimSlice machine ASoC driver
   3  *
   4  * Copyright (C) 2011 - CompuLab, Ltd.
   5  * Author: Mike Rapoport <mike@compulab.co.il>
   6  *
   7  * Based on code copyright/by:
   8  * Author: Stephen Warren <swarren@nvidia.com>
   9  * Copyright (C) 2010-2011 - NVIDIA, Inc.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * version 2 as published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  23  * 02110-1301 USA
  24  *
  25  */
  26
  27 #include <asm/mach-types.h>
  28
  29 #include <linux/module.h>
  30 #include <linux/platform_device.h>
  31 #include <linux/slab.h>
  32
  33 #include <sound/core.h>
  34 #include <sound/jack.h>
  35 #include <sound/pcm.h>
  36 #include <sound/pcm_params.h>
  37 #include <sound/soc.h>
  38
  39 #include "../codecs/tlv320aic23.h"
  40
  41 #include "tegra_das.h"
  42 #include "tegra_i2s.h"
  43 #include "tegra_pcm.h"
  44 #include "tegra_asoc_utils.h"
  45
  46 #define DRV_NAME "tegra-snd-trimslice"
  47
  48 struct tegra_trimslice {
  49         struct tegra_asoc_utils_data util_data;
  50 };
  51
  52 static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
  53                                         struct snd_pcm_hw_params *params)
  54 {
  55         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  56         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  57         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  58         struct snd_soc_codec *codec = rtd->codec;
  59         struct snd_soc_card *card = codec->card;
  60         struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
  61         int srate, mclk;
  62         int err;
  63
  64         srate = params_rate(params);
  65         mclk = 128 * srate;
  66
  67         err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
  68         if (err < 0) {
  69                 dev_err(card->dev, "Can't configure clocks\n");
  70                 return err;
  71         }
  72
  73         err = snd_soc_dai_set_fmt(codec_dai,
  74                                         SND_SOC_DAIFMT_I2S |
  75                                         SND_SOC_DAIFMT_NB_NF |
  76                                         SND_SOC_DAIFMT_CBS_CFS);
  77         if (err < 0) {
  78                 dev_err(card->dev, "codec_dai fmt not set\n");
  79                 return err;
  80         }
  81
  82         err = snd_soc_dai_set_fmt(cpu_dai,
  83                                         SND_SOC_DAIFMT_I2S |
  84                                         SND_SOC_DAIFMT_NB_NF |
  85                                         SND_SOC_DAIFMT_CBS_CFS);
  86         if (err < 0) {
  87                 dev_err(card->dev, "cpu_dai fmt not set\n");
  88                 return err;
  89         }
  90
  91         err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  92                                         SND_SOC_CLOCK_IN);
  93         if (err < 0) {
  94                 dev_err(card->dev, "codec_dai clock not set\n");
  95                 return err;
  96         }
  97
  98         return 0;
  99 }
 100
 101 static struct snd_soc_ops trimslice_asoc_ops = {
 102         .hw_params = trimslice_asoc_hw_params,
 103 };
 104
 105 static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
 106         SND_SOC_DAPM_HP("Line Out", NULL),
 107         SND_SOC_DAPM_LINE("Line In", NULL),
 108 };
 109
 110 static const struct snd_soc_dapm_route trimslice_audio_map[] = {
 111         {"Line Out", NULL, "LOUT"},
 112         {"Line Out", NULL, "ROUT"},
 113
 114         {"LLINEIN", NULL, "Line In"},
 115         {"RLINEIN", NULL, "Line In"},
 116 };
 117
 118 static int trimslice_asoc_init(struct snd_soc_pcm_runtime *rtd)
 119 {
 120         struct snd_soc_codec *codec = rtd->codec;
 121         struct snd_soc_dapm_context *dapm = &codec->dapm;
 122
 123         snd_soc_dapm_nc_pin(dapm, "LHPOUT");
 124         snd_soc_dapm_nc_pin(dapm, "RHPOUT");
 125         snd_soc_dapm_nc_pin(dapm, "MICIN");
 126
 127         snd_soc_dapm_sync(dapm);
 128
 129         return 0;
 130 }
 131
 132 static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
 133         .name = "TLV320AIC23",
 134         .stream_name = "AIC23",
 135         .codec_name = "tlv320aic23-codec.2-001a",
 136         .platform_name = "tegra-pcm-audio",
 137         .cpu_dai_name = "tegra-i2s.0",
 138         .codec_dai_name = "tlv320aic23-hifi",
 139         .init = trimslice_asoc_init,
 140         .ops = &trimslice_asoc_ops,
 141 };
 142
 143 static struct snd_soc_card snd_soc_trimslice = {
 144         .name = "tegra-trimslice",
 145         .dai_link = &trimslice_tlv320aic23_dai,
 146         .num_links = 1,
 147
 148         .dapm_widgets = trimslice_dapm_widgets,
 149         .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
 150         .dapm_routes = trimslice_audio_map,
 151         .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
 152 };
 153
 154 static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
 155 {
 156         struct snd_soc_card *card = &snd_soc_trimslice;
 157         struct tegra_trimslice *trimslice;
 158         int ret;
 159
 160         trimslice = kzalloc(sizeof(struct tegra_trimslice), GFP_KERNEL);
 161         if (!trimslice) {
 162                 dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
 163                 return -ENOMEM;
 164         }
 165
 166         ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
 167         if (ret)
 168                 goto err_free_trimslice;
 169
 170         card->dev = &pdev->dev;
 171         platform_set_drvdata(pdev, card);
 172         snd_soc_card_set_drvdata(card, trimslice);
 173
 174         ret = snd_soc_register_card(card);
 175         if (ret) {
 176                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 177                         ret);
 178                 goto err_fini_utils;
 179         }
 180
 181         return 0;
 182
 183 err_fini_utils:
 184         tegra_asoc_utils_fini(&trimslice->util_data);
 185 err_free_trimslice:
 186         kfree(trimslice);
 187         return ret;
 188 }
 189
 190 static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
 191 {
 192         struct snd_soc_card *card = platform_get_drvdata(pdev);
 193         struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
 194
 195         snd_soc_unregister_card(card);
 196
 197         tegra_asoc_utils_fini(&trimslice->util_data);
 198
 199         kfree(trimslice);
 200
 201         return 0;
 202 }
 203
 204 static struct platform_driver tegra_snd_trimslice_driver = {
 205         .driver = {
 206                 .name = DRV_NAME,
 207                 .owner = THIS_MODULE,
 208         },
 209         .probe = tegra_snd_trimslice_probe,
 210         .remove = __devexit_p(tegra_snd_trimslice_remove),
 211 };
 212
 213 static int __init snd_tegra_trimslice_init(void)
 214 {
 215         return platform_driver_register(&tegra_snd_trimslice_driver);
 216 }
 217 module_init(snd_tegra_trimslice_init);
 218
 219 static void __exit snd_tegra_trimslice_exit(void)
 220 {
 221         platform_driver_unregister(&tegra_snd_trimslice_driver);
 222 }
 223 module_exit(snd_tegra_trimslice_exit);
 224
 225 MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
 226 MODULE_DESCRIPTION("Trimslice machine ASoC driver");
 227 MODULE_LICENSE("GPL");
 228 MODULE_ALIAS("platform:" DRV_NAME);