mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-25 14:53:08 +02:00
365 lines
9.0 KiB
C
Executable File
365 lines
9.0 KiB
C
Executable File
/*
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* pavo.c -- SoC audio for PAVO
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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; either version 2 of the License, or (at your
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* option) any later version.
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*
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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/driver.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 "../codecs/jzcodec.h"
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#include "jz4740-pcm.h"
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#include "jz4740-i2s.h"
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#define PAVO_HP 0
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#define PAVO_MIC 1
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#define PAVO_LINE 2
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#define PAVO_HEADSET 3
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#define PAVO_HP_OFF 4
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#define PAVO_SPK_ON 0
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#define PAVO_SPK_OFF 1
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/* audio clock in Hz - rounded from 12.235MHz */
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#define PAVO_AUDIO_CLOCK 12288000
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static int pavo_jack_func;
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static int pavo_spk_func;
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unsigned short set_scoop_gpio(struct device *dev, unsigned short bit)
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{
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unsigned short gpio_bit = 0;
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return gpio_bit;
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}
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unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit)
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{
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unsigned short gpio_bit = 0;
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return gpio_bit;
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}
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static void pavo_ext_control(struct snd_soc_codec *codec)
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{
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int spk = 0, mic = 0, line = 0, hp = 0, hs = 0;
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/* set up jack connection */
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switch (pavo_jack_func) {
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case PAVO_HP:
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hp = 1;
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/* set = unmute headphone */
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//set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
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//set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
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break;
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case PAVO_MIC:
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mic = 1;
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/* reset = mute headphone */
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
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break;
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case PAVO_LINE:
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line = 1;
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
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break;
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case PAVO_HEADSET:
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hs = 1;
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mic = 1;
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
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//set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
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break;
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}
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if (pavo_spk_func == PAVO_SPK_ON)
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spk = 1;
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#if 0
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/* set the enpoints to their new connetion states */
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snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", mic);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", line);
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp);
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs);
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/* signal a DAPM event */
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snd_soc_dapm_sync_endpoints(codec);
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#endif
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}
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static int pavo_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_codec *codec = rtd->socdev->codec;
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/* check the jack status at stream startup */
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pavo_ext_control(codec);
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return 0;
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}
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/* we need to unmute the HP at shutdown as the mute burns power on pavo */
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static void pavo_shutdown(struct snd_pcm_substream *substream)
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{
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/*struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_codec *codec = rtd->socdev->codec;*/
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return;
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}
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static int pavo_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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/* set codec DAI configuration */
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ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
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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 = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
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if (ret < 0)
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return ret;
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/* set the codec system clock for DAC and ADC */
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ret = codec_dai->dai_ops.set_sysclk(codec_dai, JZCODEC_SYSCLK, 111,
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SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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/* set the I2S system clock as input (unused) */
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ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, JZ4740_I2S_SYSCLK, 0,
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SND_SOC_CLOCK_IN);
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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 pavo_ops = {
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.startup = pavo_startup,
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.hw_params = pavo_hw_params,
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.shutdown = pavo_shutdown,
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};
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static int pavo_get_jack(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.integer.value[0] = pavo_jack_func;
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return 0;
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}
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static int pavo_set_jack(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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if (pavo_jack_func == ucontrol->value.integer.value[0])
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return 0;
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pavo_jack_func = ucontrol->value.integer.value[0];
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pavo_ext_control(codec);
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return 1;
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}
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static int pavo_get_spk(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.integer.value[0] = pavo_spk_func;
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return 0;
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}
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static int pavo_set_spk(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
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if (pavo_spk_func == ucontrol->value.integer.value[0])
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return 0;
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pavo_spk_func = ucontrol->value.integer.value[0];
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pavo_ext_control(codec);
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return 1;
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}
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static int pavo_amp_event(struct snd_soc_dapm_widget *w, int event)
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{
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if (SND_SOC_DAPM_EVENT_ON(event))
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//set_scoop_gpio(&corgiscoop_device.dev, PAVO_SCP_APM_ON);
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;
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else
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//reset_scoop_gpio(&corgiscoop_device.dev, PAVO_SCP_APM_ON);
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;
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return 0;
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}
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static int pavo_mic_event(struct snd_soc_dapm_widget *w, int event)
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{
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if (SND_SOC_DAPM_EVENT_ON(event))
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//set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
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;
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else
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//reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
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;
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return 0;
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}
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/* pavo machine dapm widgets */
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static const struct snd_soc_dapm_widget jzcodec_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic Jack",pavo_mic_event),
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SND_SOC_DAPM_SPK("Ext Spk", pavo_amp_event),
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SND_SOC_DAPM_LINE("Line Jack", NULL),
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SND_SOC_DAPM_HP("Headset Jack", NULL),
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};
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/* pavo machine audio map (connections to the codec pins) */
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static const char *audio_map[][3] = {
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/* headset Jack - in = micin, out = LHPOUT*/
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{"Headset Jack", NULL, "LHPOUT"},
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/* headphone connected to LHPOUT1, RHPOUT1 */
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{"Headphone Jack", NULL, "LHPOUT"},
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{"Headphone Jack", NULL, "RHPOUT"},
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/* speaker connected to LOUT, ROUT */
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{"Ext Spk", NULL, "ROUT"},
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{"Ext Spk", NULL, "LOUT"},
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/* mic is connected to MICIN (via right channel of headphone jack) */
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{"MICIN", NULL, "Mic Jack"},
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/* Same as the above but no mic bias for line signals */
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{"MICIN", NULL, "Line Jack"},
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{NULL, NULL, NULL},
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};
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static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
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"Off"};
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static const char *spk_function[] = {"On", "Off"};
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static const struct soc_enum pavo_enum[] = {
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SOC_ENUM_SINGLE_EXT(5, jack_function),
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SOC_ENUM_SINGLE_EXT(2, spk_function),
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};
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static const struct snd_kcontrol_new jzcodec_pavo_controls[] = {
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SOC_ENUM_EXT("Jack Function", pavo_enum[0], pavo_get_jack,
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pavo_set_jack),
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SOC_ENUM_EXT("Speaker Function", pavo_enum[1], pavo_get_spk,
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pavo_set_spk),
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};
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/*
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* Pavo for a jzcodec as connected on jz4740 Device
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*/
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static int pavo_jzcodec_init(struct snd_soc_codec *codec)
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{
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int i, err;
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#if 0
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snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0);
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snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0);
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#endif
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/* Add pavo specific controls */
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for (i = 0; i < ARRAY_SIZE(jzcodec_pavo_controls); i++) {
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err = snd_ctl_add(codec->card,
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snd_soc_cnew(&jzcodec_pavo_controls[i],codec, NULL));
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if (err < 0)
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return err;
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}
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/* Add pavo specific widgets */
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for(i = 0; i < ARRAY_SIZE(jzcodec_dapm_widgets); i++) {
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snd_soc_dapm_new_control(codec, &jzcodec_dapm_widgets[i]);
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}
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#if 0
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/* Set up pavo specific audio path audio_map */
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for(i = 0; audio_map[i][0] != NULL; i++) {
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snd_soc_dapm_connect_input(codec, audio_map[i][0],
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audio_map[i][1], audio_map[i][2]);
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}
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snd_soc_dapm_sync_endpoints(codec);
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#endif
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return 0;
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}
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/* pavo digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link pavo_dai = {
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.name = "JZCODEC",
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.stream_name = "JZCODEC",
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.cpu_dai = &jz4740_i2s_dai,
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.codec_dai = &jzcodec_dai,
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.init = pavo_jzcodec_init,
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.ops = &pavo_ops,
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};
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/* pavo audio machine driver */
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static struct snd_soc_machine snd_soc_machine_pavo = {
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.name = "Pavo",
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.dai_link = &pavo_dai,
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.num_links = 1,
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};
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/* pavo audio subsystem */
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static struct snd_soc_device pavo_snd_devdata = {
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.machine = &snd_soc_machine_pavo,
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.platform = &jz4740_soc_platform,
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.codec_dev = &soc_codec_dev_jzcodec,
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//.codec_data
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};
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static struct platform_device *pavo_snd_device;
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static int __init pavo_init(void)
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{
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int ret;
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pavo_snd_device = platform_device_alloc("soc-audio", -1);
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if (!pavo_snd_device)
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return -ENOMEM;
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platform_set_drvdata(pavo_snd_device, &pavo_snd_devdata);
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pavo_snd_devdata.dev = &pavo_snd_device->dev;
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ret = platform_device_add(pavo_snd_device);
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if (ret)
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platform_device_put(pavo_snd_device);
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return ret;
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}
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static void __exit pavo_exit(void)
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{
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platform_device_unregister(pavo_snd_device);
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}
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module_init(pavo_init);
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module_exit(pavo_exit);
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/* Module information */
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MODULE_AUTHOR("Richard");
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MODULE_DESCRIPTION("ALSA SoC Pavo");
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MODULE_LICENSE("GPL");
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