| /* |
| * omap3evm.c -- ALSA SoC support for OMAP3 EVM |
| * |
| * Author: Anuj Aggarwal <anuj.aggarwal@ti.com> |
| * |
| * Based on sound/soc/omap/beagle.c by Steve Sakoman |
| * |
| * Added support for MCBSP1 <-> WL1271 BT by Mistral |
| * |
| * Copyright (C) 2008 Texas Instruments, Incorporated |
| * |
| * 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 version 2. |
| * |
| * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, |
| * whether express or implied; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/platform_device.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| |
| #include <asm/mach-types.h> |
| #include <mach/hardware.h> |
| #include <mach/gpio.h> |
| #include <plat/mcbsp.h> |
| |
| #include "omap-mcbsp.h" |
| #include "omap-pcm.h" |
| |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| #include <plat/control.h> |
| #include "../codecs/wl1271bt.h" |
| #endif |
| |
| static int omap3evm_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; |
| int ret; |
| |
| /* Set codec DAI configuration */ |
| ret = snd_soc_dai_set_fmt(codec_dai, |
| SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) { |
| printk(KERN_ERR "Can't set codec DAI configuration\n"); |
| return ret; |
| } |
| |
| /* Set cpu DAI configuration */ |
| ret = snd_soc_dai_set_fmt(cpu_dai, |
| SND_SOC_DAIFMT_I2S | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) { |
| printk(KERN_ERR "Can't set cpu DAI configuration\n"); |
| return ret; |
| } |
| |
| /* Set the codec system clock for DAC and ADC */ |
| ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000, |
| SND_SOC_CLOCK_IN); |
| if (ret < 0) { |
| printk(KERN_ERR "Can't set codec system clock\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops omap3evm_ops = { |
| .hw_params = omap3evm_hw_params, |
| }; |
| |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| static int omap3evm_wl1271bt_pcm_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 *cpu_dai = rtd->dai->cpu_dai; |
| int ret; |
| |
| /* Set cpu DAI configuration for WL1271 Bluetooth codec */ |
| ret = snd_soc_dai_set_fmt(cpu_dai, |
| SND_SOC_DAIFMT_DSP_B | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBM_CFM); |
| if (ret < 0) { |
| printk(KERN_ERR "Can't set cpu DAI configuration for " \ |
| "WL1271 Bluetooth codec \n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static struct snd_soc_ops omap3evm_wl1271bt_pcm_ops = { |
| .hw_params = omap3evm_wl1271bt_pcm_hw_params, |
| }; |
| |
| #endif |
| |
| |
| /* Digital audio interface glue - connects codec <--> CPU */ |
| static struct snd_soc_dai_link omap3evm_dai = { |
| .name = "TWL4030", |
| .stream_name = "TWL4030", |
| .cpu_dai_name = "omap-mcbsp-dai.1", |
| .codec_dai_name = "twl4030-hifi", |
| .platform_name = "omap-pcm-audio", |
| .codec_name = "twl4030-codec", |
| .ops = &omap3evm_ops, |
| |
| static struct snd_soc_dai_link omap3evm_dai[] = { |
| { |
| .name = "TWL4030", |
| .stream_name = "TWL4030", |
| .cpu_dai = &omap_mcbsp_dai[0], |
| .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI], |
| .ops = &omap3evm_ops, |
| }, |
| |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| /* Connects WL1271 Bluetooth codec <--> CPU */ |
| { |
| .name = "WL1271BTPCM", |
| .stream_name = "WL1271 BT PCM", |
| .cpu_dai = &omap_mcbsp_dai[1], |
| .codec_dai = &wl1271bt_dai, |
| .ops = &omap3evm_wl1271bt_pcm_ops, |
| }, |
| #endif |
| }; |
| |
| /* Audio machine driver */ |
| static struct snd_soc_card snd_soc_omap3evm = { |
| .name = "omap3evm", |
| .dai_link = &omap3evm_dai[0], |
| .num_links = ARRAY_SIZE(omap3evm_dai), |
| }; |
| |
| static struct platform_device *omap3evm_snd_device; |
| |
| static int __init omap3evm_soc_init(void) |
| { |
| int ret; |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| u16 reg; |
| u32 val; |
| #endif |
| |
| if (!machine_is_omap3evm()) |
| return -ENODEV; |
| pr_info("OMAP3 EVM SoC init\n"); |
| |
| omap3evm_snd_device = platform_device_alloc("soc-audio", -1); |
| if (!omap3evm_snd_device) { |
| printk(KERN_ERR "Platform device allocation failed\n"); |
| return -ENOMEM; |
| } |
| |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| /* |
| * Set DEVCONF0 register to connect |
| * MCBSP1_CLKR -> MCBSP1_CLKX & MCBSP1_FSR -> MCBSP1_FSX |
| */ |
| reg = OMAP2_CONTROL_DEVCONF0; |
| val = omap_ctrl_readl(reg); |
| val = val | 0x18; |
| omap_ctrl_writel(val, reg); |
| #endif |
| |
| |
| platform_set_drvdata(omap3evm_snd_device, &snd_soc_omap3evm); |
| *(unsigned int *)omap3evm_dai[0].cpu_dai->private_data = 1; /* McBSP2 */ |
| #if defined(CONFIG_SND_SOC_WL1271BT) |
| *(unsigned int *)omap3evm_dai[1].cpu_dai->private_data = 0; /* McBSP1 */ |
| #endif |
| ret = platform_device_add(omap3evm_snd_device); |
| if (ret) |
| goto err1; |
| |
| return 0; |
| |
| err1: |
| printk(KERN_ERR "Unable to add platform device\n"); |
| platform_device_put(omap3evm_snd_device); |
| |
| return ret; |
| } |
| |
| static void __exit omap3evm_soc_exit(void) |
| { |
| platform_device_unregister(omap3evm_snd_device); |
| } |
| |
| module_init(omap3evm_soc_init); |
| module_exit(omap3evm_soc_exit); |
| |
| MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>"); |
| MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM"); |
| MODULE_LICENSE("GPL v2"); |