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e14de47ac9
When calling {corgi,poodle,spitz}_ext_control() from the startup callback we
pass the CODEC's DAPM context instead of the card's DAPM context. This is not a
problem per se since all the DAPM functions in ext_control() fallback to widgets
from other DAPM contexts, but passing the card's context is more consistent.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
314 lines
8.0 KiB
C
314 lines
8.0 KiB
C
/*
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* poodle.c -- SoC audio for Poodle
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*
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* Copyright 2005 Wolfson Microelectronics PLC.
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* Copyright 2005 Openedhand Ltd.
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*
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* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
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* Richard Purdie <richard@openedhand.com>
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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/i2c.h>
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#include <linux/interrupt.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 <asm/mach-types.h>
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#include <asm/hardware/locomo.h>
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#include <mach/poodle.h>
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#include <mach/audio.h>
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#include "../codecs/wm8731.h"
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#include "pxa2xx-i2s.h"
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#define POODLE_HP 1
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#define POODLE_HP_OFF 0
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#define POODLE_SPK_ON 1
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#define POODLE_SPK_OFF 0
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/* audio clock in Hz - rounded from 12.235MHz */
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#define POODLE_AUDIO_CLOCK 12288000
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static int poodle_jack_func;
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static int poodle_spk_func;
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static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
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{
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/* set up jack connection */
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if (poodle_jack_func == POODLE_HP) {
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/* set = unmute headphone */
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_L, 1);
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_R, 1);
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snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
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} else {
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_L, 0);
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_R, 0);
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snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
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}
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/* set the enpoints to their new connetion states */
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if (poodle_spk_func == POODLE_SPK_ON)
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snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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else
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snd_soc_dapm_disable_pin(dapm, "Ext Spk");
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/* signal a DAPM event */
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snd_soc_dapm_sync(dapm);
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}
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static int poodle_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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/* check the jack status at stream startup */
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poodle_ext_control(&rtd->card->dapm);
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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 poodle */
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static void poodle_shutdown(struct snd_pcm_substream *substream)
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{
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/* set = unmute headphone */
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_L, 1);
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_R, 1);
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}
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static int poodle_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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unsigned int clk = 0;
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int ret = 0;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 48000:
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case 96000:
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clk = 12288000;
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break;
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case 11025:
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case 22050:
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case 44100:
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clk = 11289600;
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break;
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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, WM8731_SYSCLK_XTAL, clk,
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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 = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_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 poodle_ops = {
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.startup = poodle_startup,
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.hw_params = poodle_hw_params,
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.shutdown = poodle_shutdown,
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};
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static int poodle_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] = poodle_jack_func;
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return 0;
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}
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static int poodle_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_card *card = snd_kcontrol_chip(kcontrol);
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if (poodle_jack_func == ucontrol->value.integer.value[0])
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return 0;
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poodle_jack_func = ucontrol->value.integer.value[0];
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poodle_ext_control(&card->dapm);
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return 1;
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}
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static int poodle_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] = poodle_spk_func;
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return 0;
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}
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static int poodle_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_card *card = snd_kcontrol_chip(kcontrol);
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if (poodle_spk_func == ucontrol->value.integer.value[0])
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return 0;
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poodle_spk_func = ucontrol->value.integer.value[0];
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poodle_ext_control(&card->dapm);
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return 1;
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}
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static int poodle_amp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k, int event)
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{
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if (SND_SOC_DAPM_EVENT_ON(event))
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_AMP_ON, 0);
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else
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locomo_gpio_write(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_AMP_ON, 1);
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return 0;
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}
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/* poodle machine dapm widgets */
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static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event),
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};
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/* Corgi machine connections to the codec pins */
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static const struct snd_soc_dapm_route poodle_audio_map[] = {
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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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};
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static const char *jack_function[] = {"Off", "Headphone"};
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static const char *spk_function[] = {"Off", "On"};
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static const struct soc_enum poodle_enum[] = {
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SOC_ENUM_SINGLE_EXT(2, 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 wm8731_poodle_controls[] = {
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SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack,
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poodle_set_jack),
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SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk,
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poodle_set_spk),
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};
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/*
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* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
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*/
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static int poodle_wm8731_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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snd_soc_dapm_nc_pin(dapm, "LLINEIN");
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snd_soc_dapm_nc_pin(dapm, "RLINEIN");
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snd_soc_dapm_enable_pin(dapm, "MICIN");
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return 0;
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}
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/* poodle digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link poodle_dai = {
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.name = "WM8731",
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.stream_name = "WM8731",
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.cpu_dai_name = "pxa2xx-i2s",
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.codec_dai_name = "wm8731-hifi",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "wm8731.0-001b",
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.init = poodle_wm8731_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.ops = &poodle_ops,
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};
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/* poodle audio machine driver */
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static struct snd_soc_card poodle = {
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.name = "Poodle",
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.dai_link = &poodle_dai,
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.num_links = 1,
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.owner = THIS_MODULE,
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.controls = wm8731_poodle_controls,
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.num_controls = ARRAY_SIZE(wm8731_poodle_controls),
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.dapm_widgets = wm8731_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
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.dapm_routes = poodle_audio_map,
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.num_dapm_routes = ARRAY_SIZE(poodle_audio_map),
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};
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static int poodle_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &poodle;
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int ret;
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locomo_gpio_set_dir(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_AMP_ON, 0);
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/* should we mute HP at startup - burning power ?*/
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locomo_gpio_set_dir(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_L, 0);
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locomo_gpio_set_dir(&poodle_locomo_device.dev,
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POODLE_LOCOMO_GPIO_MUTE_R, 0);
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card->dev = &pdev->dev;
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ret = snd_soc_register_card(card);
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if (ret)
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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return ret;
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}
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static int poodle_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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return 0;
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}
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static struct platform_driver poodle_driver = {
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.driver = {
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.name = "poodle-audio",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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},
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.probe = poodle_probe,
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.remove = poodle_remove,
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};
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module_platform_driver(poodle_driver);
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/* Module information */
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MODULE_AUTHOR("Richard Purdie");
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MODULE_DESCRIPTION("ALSA SoC Poodle");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:poodle-audio");
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