45656b44f6
The OMAP McBSP driver stack used to contain two different drivers. One of them was used as kind low-level access to the IP, while the other driver was the ASoC DAI driver. There were global, shared structures, in different places, the McBSP instances are reffered with id numbers (sometimes 0 based, in other cases 1 based id numbers). Create one single driver for OMAP McBSP with name: omap-mcbsp. Convert the old omap-mcbsp driver initially to be a library for the omap-mcbsp DAI driver. With this change we can get rid of all global variables, structures. Further cleanup is coming... Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Grazvydas Ignotas <notasas@gmail.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Liam Girdwood <lrg@ti.com>
162 lines
4.1 KiB
C
162 lines
4.1 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 <linux/module.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 <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 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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/* 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.1",
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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.2-001a",
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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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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.owner = THIS_MODULE,
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.dai_link = &am3517evm_dai,
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.num_links = 1,
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.dapm_widgets = tlv320aic23_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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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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