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9b44bacd58
The Zaurus SL-5600 seems to have a microphone input. Otherwise all DAPM input and output pins of the wm8731 are either used in the card's DAPM routing table or are marked as not connected. So add the microphone to the DAPM tables and set the fully_routed flag of the card instead of manually marking the unused inputs and outputs as not connected. This makes the code a bit shorter and cleaner. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
300 lines
7.7 KiB
C
300 lines
7.7 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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SND_SOC_DAPM_MIC("Microphone", NULL),
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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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{"MICIN", NULL, "Microphone"},
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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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/* 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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.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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.fully_routed = true,
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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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.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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