30230f4cd7
There is one instance of McASP on DA850/OMAP-L138 SoC. This is connected to TLV320AIC3106 codec for audio playback and capture. This patch adds audio support on this platform. Some of the structure prefix names which are common for DA830/OMAP-L137 EVM and DA850/OMAP-L138 EVM have been renamed to da8xx from da830. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
302 lines
7.8 KiB
C
302 lines
7.8 KiB
C
/*
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* ASoC driver for TI DAVINCI EVM platform
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*
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* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
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* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <asm/dma.h>
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#include <asm/mach-types.h>
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#include <mach/asp.h>
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#include <mach/edma.h>
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#include <mach/mux.h>
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#include "../codecs/tlv320aic3x.h"
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#include "../codecs/spdif_transciever.h"
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#include "davinci-pcm.h"
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#include "davinci-i2s.h"
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#include "davinci-mcasp.h"
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#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
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SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
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static int evm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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int ret = 0;
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unsigned sysclk;
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/* ASP1 on DM355 EVM is clocked by an external oscillator */
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if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm())
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sysclk = 27000000;
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/* ASP0 in DM6446 EVM is clocked by U55, as configured by
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* board-dm644x-evm.c using GPIOs from U18. There are six
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* options; here we "know" we use a 48 KHz sample rate.
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*/
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else if (machine_is_davinci_evm())
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sysclk = 12288000;
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else if (machine_is_davinci_da830_evm() ||
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machine_is_davinci_da850_evm())
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sysclk = 24576000;
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else
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return -EINVAL;
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/* set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
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if (ret < 0)
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return ret;
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/* set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
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if (ret < 0)
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return ret;
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/* set the codec system clock */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
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if (ret < 0)
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return ret;
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return 0;
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}
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static struct snd_soc_ops evm_ops = {
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.hw_params = evm_hw_params,
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};
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/* davinci-evm machine dapm widgets */
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static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_LINE("Line Out", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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};
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/* davinci-evm machine audio_mapnections to the codec pins */
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Headphone connected to HPLOUT, HPROUT */
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{"Headphone Jack", NULL, "HPLOUT"},
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{"Headphone Jack", NULL, "HPROUT"},
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/* Line Out connected to LLOUT, RLOUT */
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{"Line Out", NULL, "LLOUT"},
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{"Line Out", NULL, "RLOUT"},
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/* Mic connected to (MIC3L | MIC3R) */
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{"MIC3L", NULL, "Mic Bias 2V"},
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{"MIC3R", NULL, "Mic Bias 2V"},
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{"Mic Bias 2V", NULL, "Mic Jack"},
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/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
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{"LINE1L", NULL, "Line In"},
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{"LINE2L", NULL, "Line In"},
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{"LINE1R", NULL, "Line In"},
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{"LINE2R", NULL, "Line In"},
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};
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/* Logic for a aic3x as connected on a davinci-evm */
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static int evm_aic3x_init(struct snd_soc_codec *codec)
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{
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/* Add davinci-evm specific widgets */
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snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
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ARRAY_SIZE(aic3x_dapm_widgets));
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/* Set up davinci-evm specific audio path audio_map */
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snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
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/* not connected */
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snd_soc_dapm_disable_pin(codec, "MONO_LOUT");
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snd_soc_dapm_disable_pin(codec, "HPLCOM");
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snd_soc_dapm_disable_pin(codec, "HPRCOM");
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/* always connected */
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snd_soc_dapm_enable_pin(codec, "Headphone Jack");
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snd_soc_dapm_enable_pin(codec, "Line Out");
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snd_soc_dapm_enable_pin(codec, "Mic Jack");
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snd_soc_dapm_enable_pin(codec, "Line In");
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snd_soc_dapm_sync(codec);
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return 0;
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}
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/* davinci-evm digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link evm_dai = {
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.name = "TLV320AIC3X",
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.stream_name = "AIC3X",
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.cpu_dai = &davinci_i2s_dai,
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.codec_dai = &aic3x_dai,
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.init = evm_aic3x_init,
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.ops = &evm_ops,
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};
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static struct snd_soc_dai_link dm6467_evm_dai[] = {
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{
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.name = "TLV320AIC3X",
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.stream_name = "AIC3X",
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.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
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.codec_dai = &aic3x_dai,
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.init = evm_aic3x_init,
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.ops = &evm_ops,
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},
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{
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.name = "McASP",
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.stream_name = "spdif",
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.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_DIT_DAI],
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.codec_dai = &dit_stub_dai,
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.ops = &evm_ops,
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},
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};
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static struct snd_soc_dai_link da8xx_evm_dai = {
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.name = "TLV320AIC3X",
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.stream_name = "AIC3X",
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.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
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.codec_dai = &aic3x_dai,
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.init = evm_aic3x_init,
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.ops = &evm_ops,
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};
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/* davinci-evm audio machine driver */
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static struct snd_soc_card snd_soc_card_evm = {
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.name = "DaVinci EVM",
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.platform = &davinci_soc_platform,
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.dai_link = &evm_dai,
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.num_links = 1,
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};
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/* davinci dm6467 evm audio machine driver */
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static struct snd_soc_card dm6467_snd_soc_card_evm = {
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.name = "DaVinci DM6467 EVM",
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.platform = &davinci_soc_platform,
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.dai_link = dm6467_evm_dai,
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.num_links = ARRAY_SIZE(dm6467_evm_dai),
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};
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static struct snd_soc_card da830_snd_soc_card = {
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.name = "DA830/OMAP-L137 EVM",
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.dai_link = &da8xx_evm_dai,
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.platform = &davinci_soc_platform,
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.num_links = 1,
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};
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static struct snd_soc_card da850_snd_soc_card = {
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.name = "DA850/OMAP-L138 EVM",
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.dai_link = &da8xx_evm_dai,
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.platform = &davinci_soc_platform,
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.num_links = 1,
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};
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/* evm audio private data */
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static struct aic3x_setup_data evm_aic3x_setup = {
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.i2c_bus = 1,
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.i2c_address = 0x1b,
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};
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/* dm6467 evm audio private data */
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static struct aic3x_setup_data dm6467_evm_aic3x_setup = {
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.i2c_bus = 1,
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.i2c_address = 0x18,
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};
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static struct aic3x_setup_data da8xx_evm_aic3x_setup = {
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.i2c_bus = 1,
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.i2c_address = 0x18,
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};
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/* evm audio subsystem */
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static struct snd_soc_device evm_snd_devdata = {
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.card = &snd_soc_card_evm,
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.codec_dev = &soc_codec_dev_aic3x,
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.codec_data = &evm_aic3x_setup,
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};
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/* evm audio subsystem */
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static struct snd_soc_device dm6467_evm_snd_devdata = {
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.card = &dm6467_snd_soc_card_evm,
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.codec_dev = &soc_codec_dev_aic3x,
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.codec_data = &dm6467_evm_aic3x_setup,
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};
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/* evm audio subsystem */
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static struct snd_soc_device da830_evm_snd_devdata = {
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.card = &da830_snd_soc_card,
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.codec_dev = &soc_codec_dev_aic3x,
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.codec_data = &da8xx_evm_aic3x_setup,
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};
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static struct snd_soc_device da850_evm_snd_devdata = {
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.card = &da850_snd_soc_card,
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.codec_dev = &soc_codec_dev_aic3x,
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.codec_data = &da8xx_evm_aic3x_setup,
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};
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static struct platform_device *evm_snd_device;
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static int __init evm_init(void)
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{
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struct snd_soc_device *evm_snd_dev_data;
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int index;
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int ret;
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if (machine_is_davinci_evm()) {
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evm_snd_dev_data = &evm_snd_devdata;
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index = 0;
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} else if (machine_is_davinci_dm355_evm()) {
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evm_snd_dev_data = &evm_snd_devdata;
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index = 1;
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} else if (machine_is_davinci_dm6467_evm()) {
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evm_snd_dev_data = &dm6467_evm_snd_devdata;
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index = 0;
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} else if (machine_is_davinci_da830_evm()) {
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evm_snd_dev_data = &da830_evm_snd_devdata;
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index = 1;
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} else if (machine_is_davinci_da850_evm()) {
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evm_snd_dev_data = &da850_evm_snd_devdata;
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index = 0;
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} else
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return -EINVAL;
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evm_snd_device = platform_device_alloc("soc-audio", index);
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if (!evm_snd_device)
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return -ENOMEM;
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platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
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evm_snd_dev_data->dev = &evm_snd_device->dev;
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ret = platform_device_add(evm_snd_device);
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if (ret)
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platform_device_put(evm_snd_device);
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return ret;
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}
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static void __exit evm_exit(void)
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{
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platform_device_unregister(evm_snd_device);
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}
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module_init(evm_init);
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module_exit(evm_exit);
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MODULE_AUTHOR("Vladimir Barinov");
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MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
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MODULE_LICENSE("GPL");
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