diff options
author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2014-07-25 21:53:00 +0200 |
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committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2014-07-25 21:53:00 +0200 |
commit | 0ef8a43b078dc63d2f1bf69c9d6ee480bdcbb6e7 (patch) | |
tree | bf02b2405650d2b1cfd29c2341e9bbd02818f3de /sound/soc/tegra/apalis_t30.c | |
parent | fff75b252e0aed1d8be2b62234624f726c153776 (diff) |
apalis/colibri t30: use hda hdmi audio and split sound init
Use HDA HDMI audio now on Colibri T30 as well allowing for up to 7.1
multi-channel playback. Split board sound initialisation between Apalis
and Colibri T30 in order to distinguish better between default SPDIF
being supported out-of-the-box on Apalis vs. this being an optional
feature for the Colibri. Therefore remove SPDIF for the Colibri T30.
While at it add csus clock required for vi_sensor camera master clock
on Apalis T30 and clk_out_2/extern2 for Colibri T30, fix debug UART1
initialisation, get rid of spurious CONFIG_SND_USB enable and further
clean-up both board platform data files.
Diffstat (limited to 'sound/soc/tegra/apalis_t30.c')
-rw-r--r-- | sound/soc/tegra/apalis_t30.c | 406 |
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); |