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ASoC: Zoom2: Add machine driver for Zoom2 board
Add support for Zoom2 board. Zoom2 machine driver connects both codec DAIs (audio and voice) to omap3 McBSP ports in the following way: HiFi <-> McBSP2 Voice <-> McBSP3 The zoom2 driver has the following DAPM widgets: * Ext Mic: MAINMIC, SUBMIC (with bias) * Ext Spk: HFL, HFR * Headset Stereophone: HSOL, HSOR * Headset Mic: HSMIC (with bias) * Aux In: AUXL, AUXR Signed-off-by: Misael Lopez Cruz <x0052729@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lopez Cruz, Misael
Mark Brown
parent
0e09b67e58
commit
df205936d5
3 changed files with 310 additions and 0 deletions
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@ -72,4 +72,11 @@ config SND_OMAP_SOC_OMAP3_BEAGLE
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help
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Say Y if you want to add support for SoC audio on the Beagleboard.
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config SND_OMAP_SOC_ZOOM2
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tristate "SoC Audio support for Zoom2"
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depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_ZOOM2
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select SND_OMAP_SOC_MCBSP
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select SND_SOC_TWL4030
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help
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Say Y if you want to add support for Soc audio on Zoom2 board.
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@ -14,6 +14,7 @@ snd-soc-omap3evm-objs := omap3evm.o
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snd-soc-sdp3430-objs := sdp3430.o
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snd-soc-omap3pandora-objs := omap3pandora.o
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snd-soc-omap3beagle-objs := omap3beagle.o
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snd-soc-zoom2-objs := zoom2.o
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obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
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obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
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@ -23,3 +24,4 @@ obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
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obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
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obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
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obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
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obj-$(CONFIG_SND_OMAP_SOC_ZOOM2) += snd-soc-zoom2.o
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301
sound/soc/omap/zoom2.c
Normal file
301
sound/soc/omap/zoom2.c
Normal file
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@ -0,0 +1,301 @@
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/*
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* zoom2.c -- SoC audio for Zoom2
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*
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* Author: Misael Lopez Cruz <x0052729@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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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 <mach/mcbsp.h>
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#include "omap-mcbsp.h"
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#include "omap-pcm.h"
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#include "../codecs/twl4030.h"
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#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
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static int zoom2_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;
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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_I2S |
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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_I2S |
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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, 26000000,
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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 codec system clock\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 zoom2_ops = {
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.hw_params = zoom2_hw_params,
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};
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static int zoom2_hw_voice_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;
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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_A |
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SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBS_CFM);
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if (ret) {
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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_A |
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SND_SOC_DAIFMT_IB_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, 26000000,
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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 codec system clock\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 zoom2_voice_ops = {
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.hw_params = zoom2_hw_voice_params,
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};
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/* Zoom2 machine DAPM */
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static const struct snd_soc_dapm_widget zoom2_twl4030_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Ext Mic", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_LINE("Aux In", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* External Mics: MAINMIC, SUBMIC with bias*/
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{"MAINMIC", NULL, "Mic Bias 1"},
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{"SUBMIC", NULL, "Mic Bias 2"},
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{"Mic Bias 1", NULL, "Ext Mic"},
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{"Mic Bias 2", NULL, "Ext Mic"},
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/* External Speakers: HFL, HFR */
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{"Ext Spk", NULL, "HFL"},
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{"Ext Spk", NULL, "HFR"},
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/* Headset Stereophone: HSOL, HSOR */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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/* Headset Mic: HSMIC with bias */
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{"HSMIC", NULL, "Headset Mic Bias"},
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{"Headset Mic Bias", NULL, "Headset Mic"},
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/* Aux In: AUXL, AUXR */
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{"Aux In", NULL, "AUXL"},
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{"Aux In", NULL, "AUXR"},
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};
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static int zoom2_twl4030_init(struct snd_soc_codec *codec)
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{
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int ret;
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/* Add Zoom2 specific widgets */
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ret = snd_soc_dapm_new_controls(codec, zoom2_twl4030_dapm_widgets,
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ARRAY_SIZE(zoom2_twl4030_dapm_widgets));
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if (ret)
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return ret;
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/* Set up Zoom2 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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/* Zoom2 connected pins */
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snd_soc_dapm_enable_pin(codec, "Ext Mic");
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snd_soc_dapm_enable_pin(codec, "Ext Spk");
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snd_soc_dapm_enable_pin(codec, "Headset Mic");
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snd_soc_dapm_enable_pin(codec, "Headset Stereophone");
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snd_soc_dapm_enable_pin(codec, "Aux In");
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/* TWL4030 not connected pins */
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snd_soc_dapm_nc_pin(codec, "CARKITMIC");
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snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
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snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
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snd_soc_dapm_nc_pin(codec, "OUTL");
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snd_soc_dapm_nc_pin(codec, "OUTR");
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snd_soc_dapm_nc_pin(codec, "EARPIECE");
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snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
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snd_soc_dapm_nc_pin(codec, "PREDRIVER");
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snd_soc_dapm_nc_pin(codec, "CARKITL");
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snd_soc_dapm_nc_pin(codec, "CARKITR");
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ret = snd_soc_dapm_sync(codec);
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return ret;
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}
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static int zoom2_twl4030_voice_init(struct snd_soc_codec *codec)
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{
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unsigned short reg;
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/* Enable voice interface */
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reg = codec->read(codec, TWL4030_REG_VOICE_IF);
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reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
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codec->write(codec, TWL4030_REG_VOICE_IF, reg);
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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 zoom2_dai[] = {
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{
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.name = "TWL4030 I2S",
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.stream_name = "TWL4030 Audio",
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.cpu_dai = &omap_mcbsp_dai[0],
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.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
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.init = zoom2_twl4030_init,
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.ops = &zoom2_ops,
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},
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{
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.name = "TWL4030 PCM",
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.stream_name = "TWL4030 Voice",
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.cpu_dai = &omap_mcbsp_dai[1],
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.codec_dai = &twl4030_dai[TWL4030_DAI_VOICE],
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.init = zoom2_twl4030_voice_init,
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.ops = &zoom2_voice_ops,
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},
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_zoom2 = {
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.name = "Zoom2",
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.platform = &omap_soc_platform,
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.dai_link = zoom2_dai,
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.num_links = ARRAY_SIZE(zoom2_dai),
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};
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/* twl4030 setup */
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static struct twl4030_setup_data twl4030_setup = {
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.ramp_delay_value = 2, /* 81 ms */
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.sysclk = 26000,
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};
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/* Audio subsystem */
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static struct snd_soc_device zoom2_snd_devdata = {
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.card = &snd_soc_zoom2,
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.codec_dev = &soc_codec_dev_twl4030,
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.codec_data = &twl4030_setup,
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};
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static struct platform_device *zoom2_snd_device;
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static int __init zoom2_soc_init(void)
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{
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int ret;
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if (!machine_is_omap_zoom2()) {
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pr_debug("Not Zoom2!\n");
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return -ENODEV;
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}
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printk(KERN_INFO "Zoom2 SoC init\n");
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zoom2_snd_device = platform_device_alloc("soc-audio", -1);
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if (!zoom2_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(zoom2_snd_device, &zoom2_snd_devdata);
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zoom2_snd_devdata.dev = &zoom2_snd_device->dev;
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*(unsigned int *)zoom2_dai[0].cpu_dai->private_data = 1; /* McBSP2 */
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*(unsigned int *)zoom2_dai[1].cpu_dai->private_data = 2; /* McBSP3 */
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ret = platform_device_add(zoom2_snd_device);
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if (ret)
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goto err1;
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BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
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gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
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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(zoom2_snd_device);
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return ret;
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}
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module_init(zoom2_soc_init);
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static void __exit zoom2_soc_exit(void)
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{
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gpio_free(ZOOM2_HEADSET_MUX_GPIO);
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platform_device_unregister(zoom2_snd_device);
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}
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module_exit(zoom2_soc_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC Zoom2");
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MODULE_LICENSE("GPL");
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