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Diffstat (limited to 'sound/soc/tegra/apalis_t30.c')
-rw-r--r--sound/soc/tegra/apalis_t30.c406
1 files changed, 406 insertions, 0 deletions
diff --git a/sound/soc/tegra/apalis_t30.c b/sound/soc/tegra/apalis_t30.c
new file mode 100644
index 000000000000..e824f65df5a4
--- /dev/null
+++ b/sound/soc/tegra/apalis_t30.c
@@ -0,0 +1,406 @@
+/*
+ * SoC audio driver for Toradex Apalis T30
+ *
+ * Copyright (C) 2012-2014 Toradex Inc.
+ *
+ * 2012-02-12: Marcel Ziswiler <marcel.ziswiler@toradex.com>
+ * initial version
+ *
+ * Copied from tegra_wm8903.c
+ * Copyright (C) 2010-2011 - NVIDIA, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <asm/mach-types.h>
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <mach/tegra_asoc_pdata.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/sgtl5000.h"
+
+#include "tegra_pcm.h"
+#include "tegra_asoc_utils.h"
+
+#define DRV_NAME "tegra-snd-apalis_t30-sgtl5000"
+
+struct apalis_t30_sgtl5000 {
+ struct tegra_asoc_utils_data util_data;
+ struct tegra_asoc_platform_data *pdata;
+ enum snd_soc_bias_level bias_level;
+};
+
+static int apalis_t30_sgtl5000_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *card = codec->card;
+ struct apalis_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_asoc_platform_data *pdata = machine->pdata;
+ int srate, mclk, i2s_daifmt;
+ int err;
+ int rate;
+
+ /* sgtl5000 does not support 512*rate when in 96000 fs */
+ srate = params_rate(params);
+ switch (srate) {
+ case 96000:
+ mclk = 256 * srate;
+ break;
+ default:
+ mclk = 512 * srate;
+ break;
+ }
+
+ /* Sgtl5000 sysclk should be >= 8MHz and <= 27M */
+ if (mclk < 8000000 || mclk > 27000000)
+ return -EINVAL;
+
+ if(pdata->i2s_param[HIFI_CODEC].is_i2s_master) {
+ i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS;
+ } else {
+ i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM;
+ }
+
+ err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+ if (err < 0) {
+ if (!(machine->util_data.set_mclk % mclk))
+ mclk = machine->util_data.set_mclk;
+ else {
+ dev_err(card->dev, "Can't configure clocks\n");
+ return err;
+ }
+ }
+
+ tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+ rate = clk_get_rate(machine->util_data.clk_cdev1);
+
+ /* Use DSP mode for mono on Tegra20 */
+ if (params_channels(params) != 2) {
+ i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+ } else {
+ switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
+ case TEGRA_DAIFMT_I2S :
+ i2s_daifmt |= SND_SOC_DAIFMT_I2S;
+ break;
+ case TEGRA_DAIFMT_DSP_A :
+ i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
+ break;
+ case TEGRA_DAIFMT_DSP_B :
+ i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
+ break;
+ case TEGRA_DAIFMT_LEFT_J :
+ i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
+ break;
+ case TEGRA_DAIFMT_RIGHT_J :
+ i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
+ break;
+ default :
+ dev_err(card->dev,
+ "Can't configure i2s format\n");
+ return -EINVAL;
+ }
+ }
+
+ err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
+ if (err < 0) {
+ dev_err(card->dev, "codec_dai fmt not set\n");
+ return err;
+ }
+
+ err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
+ if (err < 0) {
+ dev_err(card->dev, "cpu_dai fmt not set\n");
+ return err;
+ }
+
+ /* Set SGTL5000's SYSCLK (provided by clk_out_1) */
+ err = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, rate, SND_SOC_CLOCK_IN);
+ if (err < 0) {
+ dev_err(card->dev, "codec_dai clock not set\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct apalis_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
+ int srate, mclk, min_mclk;
+ int err;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ mclk = 11289600;
+ break;
+ case 8000:
+ case 16000:
+ case 32000:
+ case 48000:
+ case 64000:
+ case 96000:
+ mclk = 12288000;
+ break;
+ default:
+ return -EINVAL;
+ }
+ min_mclk = 128 * srate;
+
+ err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+ if (err < 0) {
+ if (!(machine->util_data.set_mclk % min_mclk))
+ mclk = machine->util_data.set_mclk;
+ else {
+ dev_err(card->dev, "Can't configure clocks\n");
+ return err;
+ }
+ }
+
+ tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);
+
+ return 0;
+}
+
+static int tegra_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct apalis_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(rtd->card);
+
+ tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0);
+
+ return 0;
+}
+
+static struct snd_soc_ops apalis_t30_sgtl5000_ops = {
+ .hw_params = apalis_t30_sgtl5000_hw_params,
+ .hw_free = tegra_hw_free,
+};
+
+static struct snd_soc_ops tegra_spdif_ops = {
+ .hw_params = tegra_spdif_hw_params,
+ .hw_free = tegra_hw_free,
+};
+
+/* Apalis T30 machine DAPM widgets */
+static const struct snd_soc_dapm_widget apalis_t30_sgtl5000_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("HEADPHONE", NULL),
+ SND_SOC_DAPM_LINE("LINEIN", NULL),
+ SND_SOC_DAPM_MIC("MIC_IN", NULL),
+};
+
+/* Apalis T30 machine audio map (connections to the codec pins) */
+static const struct snd_soc_dapm_route apalis_t30_sgtl5000_dapm_route[] = {
+ /* Apalis MXM3 pin 306 (MIC)
+ Apalis Evaluation Board: Audio jack X26 bottom pink
+ Ixora: Audio jack X12 pin 4 */
+//mic bias GPIO handling
+// [ 9.359733] tegra-snd-apalis_t30-sgtl5000 tegra-snd-apalis_t30-sgtl5000.0: Failed to add route MICIN->MIC_IN
+// { "MIC_IN", NULL, "MIC_IN" },
+
+ /* Apalis MXM3 pin 310 & 312 (LINEIN_L/R)
+ Apalis Evaluation Board: Audio jack X26 top blue
+ Ixora: Line IN – S/PDIF header X18 pin 6 & 7 */
+ { "LINEIN", NULL, "LINE_IN" },
+
+ /* Apalis MXM3 pin 316 & 318 (HP_L/R)
+ Apalis Evaluation Board: Audio jack X26 middle green
+ Ixora: Audio jack X12 */
+//HP PGA handling
+ { "HEADPHONE", NULL, "HP_OUT" },
+};
+
+static int apalis_t30_sgtl5000_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ struct snd_soc_card *card = codec->card;
+ struct apalis_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ machine->bias_level = SND_SOC_BIAS_STANDBY;
+
+ ret = tegra_asoc_utils_register_ctls(&machine->util_data);
+ if (ret < 0)
+ return ret;
+
+ snd_soc_dapm_nc_pin(dapm, "LINE_OUT");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link apalis_t30_sgtl5000_dai[] = {
+ {
+ .name = "SGTL5000",
+ .stream_name = "SGTL5000 PCM",
+ .codec_name = "sgtl5000.4-000a",
+ .platform_name = "tegra-pcm-audio",
+ .cpu_dai_name = "tegra30-i2s.2",
+ .codec_dai_name = "sgtl5000",
+ .init = apalis_t30_sgtl5000_init,
+ .ops = &apalis_t30_sgtl5000_ops,
+ },
+ {
+ .name = "SPDIF",
+ .stream_name = "SPDIF PCM",
+ .codec_name = "spdif-dit.0",
+ .platform_name = "tegra-pcm-audio",
+ .cpu_dai_name = "tegra30-spdif",
+ .codec_dai_name = "dit-hifi",
+ .ops = &tegra_spdif_ops,
+ },
+};
+
+static struct snd_soc_card snd_soc_apalis_t30_sgtl5000 = {
+ .name = "apalis_t30-sgtl5000",
+ .dai_link = apalis_t30_sgtl5000_dai,
+ .num_links = ARRAY_SIZE(apalis_t30_sgtl5000_dai),
+// .set_bias_level
+// .set_bias_level_post
+};
+
+static __devinit int apalis_t30_sgtl5000_driver_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_apalis_t30_sgtl5000;
+ struct apalis_t30_sgtl5000 *machine;
+ struct tegra_asoc_platform_data *pdata;
+ int ret;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "No platform data supplied\n");
+ return -EINVAL;
+ }
+
+ machine = kzalloc(sizeof(struct apalis_t30_sgtl5000), GFP_KERNEL);
+ if (!machine) {
+ dev_err(&pdev->dev, "Can't allocate apalis_t30_sgtl5000 struct\n");
+ return -ENOMEM;
+ }
+
+ machine->pdata = pdata;
+
+ ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev, card);
+ if (ret)
+ goto err_free_machine;
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, machine);
+
+ card->dapm_widgets = apalis_t30_sgtl5000_dapm_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(apalis_t30_sgtl5000_dapm_widgets);
+
+ card->dapm_routes = apalis_t30_sgtl5000_dapm_route;
+ card->num_dapm_routes = ARRAY_SIZE(apalis_t30_sgtl5000_dapm_route);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ goto err_fini_utils;
+ }
+
+ if (!card->instantiated) {
+ ret = -ENODEV;
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ goto err_unregister_card;
+ }
+
+ ret = tegra_asoc_utils_set_parent(&machine->util_data,
+ pdata->i2s_param[HIFI_CODEC].is_i2s_master);
+ if (ret) {
+ dev_err(&pdev->dev, "tegra_asoc_utils_set_parent failed (%d)\n",
+ ret);
+ goto err_unregister_card;
+ }
+
+ return 0;
+
+err_unregister_card:
+ snd_soc_unregister_card(card);
+err_fini_utils:
+ tegra_asoc_utils_fini(&machine->util_data);
+err_free_machine:
+ kfree(machine);
+ return ret;
+}
+
+static int __devexit apalis_t30_sgtl5000_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct apalis_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
+
+ snd_soc_unregister_card(card);
+
+ tegra_asoc_utils_fini(&machine->util_data);
+
+ kfree(machine);
+
+ return 0;
+}
+
+static struct platform_driver apalis_t30_sgtl5000_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = apalis_t30_sgtl5000_driver_probe,
+ .remove = __devexit_p(apalis_t30_sgtl5000_driver_remove),
+};
+
+static int __init apalis_t30_sgtl5000_modinit(void)
+{
+ return platform_driver_register(&apalis_t30_sgtl5000_driver);
+}
+module_init(apalis_t30_sgtl5000_modinit);
+
+static void __exit apalis_t30_sgtl5000_modexit(void)
+{
+ platform_driver_unregister(&apalis_t30_sgtl5000_driver);
+}
+module_exit(apalis_t30_sgtl5000_modexit);
+
+/* Module information */
+MODULE_AUTHOR("Marcel Ziswiler <marcel.ziswiler@toradex.com>");
+MODULE_DESCRIPTION("ALSA SoC SGTL5000 on Toradex Apalis T30");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);