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ce6120cca2
Decoupling Dynamic Audio Power Management (DAPM) from codec devices is required when developing ASoC further. Such as for other ASoC components to have DAPM widgets or when extending DAPM to handle cross-device paths. This patch decouples DAPM related variables from struct snd_soc_codec and moves them to new struct snd_soc_dapm_context that is used to encapsulate DAPM context of a device. ASoC core and API of DAPM functions are modified to use DAPM context instead of codec. This patch does not change current functionality and a large part of changes come because of structure and internal API changes. Core implementation is from Liam Girdwood <lrg@slimlogic.co.uk> with some minor core changes, codecs and machine driver conversions from Jarkko Nikula <jhnikula@gmail.com>. Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Manuel Lauss <manuel.lauss@googlemail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Cc: Cliff Cai <cliff.cai@analog.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Ryan Mallon <ryan@bluewatersys.com> Cc: Timur Tabi <timur@freescale.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Jassi Brar <jassi.brar@samsung.com> Cc: Daniel Gloeckner <dg@emlix.com> Cc: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
197 lines
5.0 KiB
C
197 lines
5.0 KiB
C
/*
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* am3517evm.c -- ALSA SoC support for OMAP3517 / AM3517 EVM
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*
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* Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
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*
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* Based on sound/soc/omap/beagle.c by Steve Sakoman
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*
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* Copyright (C) 2009 Texas Instruments Incorporated
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
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* whether express or implied; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/clk.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/mach-types.h>
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#include <mach/hardware.h>
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#include <mach/gpio.h>
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#include <plat/mcbsp.h>
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#include "omap-mcbsp.h"
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#include "omap-pcm.h"
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#include "../codecs/tlv320aic23.h"
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#define CODEC_CLOCK 12000000
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static int am3517evm_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->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int ret;
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/* Set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_DSP_B |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0) {
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printk(KERN_ERR "can't set codec DAI configuration\n");
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return ret;
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}
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/* Set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai,
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SND_SOC_DAIFMT_DSP_B |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0) {
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printk(KERN_ERR "can't set cpu DAI configuration\n");
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return ret;
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}
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/* Set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0,
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CODEC_CLOCK, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n");
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return ret;
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}
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snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n");
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return ret;
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}
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return 0;
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}
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static struct snd_soc_ops am3517evm_ops = {
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.hw_params = am3517evm_hw_params,
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};
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/* am3517evm machine dapm widgets */
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static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Line Out", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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SND_SOC_DAPM_MIC("Mic In", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Line Out connected to LLOUT, RLOUT */
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{"Line Out", NULL, "LOUT"},
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{"Line Out", NULL, "ROUT"},
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{"LLINEIN", NULL, "Line In"},
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{"RLINEIN", NULL, "Line In"},
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{"MICIN", NULL, "Mic In"},
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};
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static int am3517evm_aic23_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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/* Add am3517-evm specific widgets */
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snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
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ARRAY_SIZE(tlv320aic23_dapm_widgets));
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/* Set up davinci-evm specific audio path audio_map */
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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/* always connected */
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snd_soc_dapm_enable_pin(dapm, "Line Out");
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snd_soc_dapm_enable_pin(dapm, "Line In");
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snd_soc_dapm_enable_pin(dapm, "Mic In");
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snd_soc_dapm_sync(dapm);
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return 0;
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}
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link am3517evm_dai = {
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.name = "TLV320AIC23",
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.stream_name = "AIC23",
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.cpu_dai_name ="omap-mcbsp-dai.0",
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.codec_dai_name = "tlv320aic23-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "tlv320aic23-codec",
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.init = am3517evm_aic23_init,
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.ops = &am3517evm_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_am3517evm = {
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.name = "am3517evm",
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.dai_link = &am3517evm_dai,
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.num_links = 1,
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};
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static struct platform_device *am3517evm_snd_device;
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static int __init am3517evm_soc_init(void)
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{
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int ret;
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if (!machine_is_omap3517evm())
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return -ENODEV;
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pr_info("OMAP3517 / AM3517 EVM SoC init\n");
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am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
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if (!am3517evm_snd_device) {
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printk(KERN_ERR "Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);
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ret = platform_device_add(am3517evm_snd_device);
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if (ret)
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goto err1;
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return 0;
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err1:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(am3517evm_snd_device);
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return ret;
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}
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static void __exit am3517evm_soc_exit(void)
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{
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platform_device_unregister(am3517evm_snd_device);
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}
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module_init(am3517evm_soc_init);
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module_exit(am3517evm_soc_exit);
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MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
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MODULE_LICENSE("GPL v2");
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