forked from Minki/linux
[ALSA] ASoC pxa2xx Poodle machine support
This patch adds Alsa audio support to the Sharp Zaurus SL-C5600 (Poodle) machine. From: Liam Girdwood <liam.girdwood@wolfsonmicro.com> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Liam Girdwood
Jaroslav Kysela
parent
1b49cb9870
commit
6e24dd9310
329
sound/soc/pxa/poodle.c
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329
sound/soc/pxa/poodle.c
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/*
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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 <liam.girdwood@wolfsonmicro.com>
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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/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 <asm/mach-types.h>
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#include <asm/hardware/locomo.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/poodle.h>
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#include <asm/arch/audio.h>
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#include "../codecs/wm8731.h"
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#include "pxa2xx-pcm.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_codec *codec)
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{
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int spk = 0;
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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_set_endpoint(codec, "Headphone Jack", 1);
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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_set_endpoint(codec, "Headphone Jack", 0);
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}
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if (poodle_spk_func == POODLE_SPK_ON)
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spk = 1;
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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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/* signal a DAPM event */
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snd_soc_dapm_sync_endpoints(codec);
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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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struct snd_soc_codec *codec = rtd->socdev->codec;
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/* check the jack status at stream startup */
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poodle_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 poodle */
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static int poodle_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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/* 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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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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.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_codec *codec = 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(codec);
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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_codec *codec = 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(codec);
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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, 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 audio_mapnections to the codec pins */
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static const char *audio_map[][3] = {
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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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{NULL, NULL, NULL},
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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 snd_kcontrol_new_t 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_codec *codec)
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{
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int i, err;
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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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snd_soc_dapm_set_endpoint(codec, "MICIN", 1);
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/* Add poodle specific controls */
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for (i = 0; i < ARRAY_SIZE(wm8731_poodle_controls); i++) {
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err = snd_ctl_add(codec->card,
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snd_soc_cnew(&wm8731_poodle_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 poodle specific widgets */
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for (i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) {
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snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]);
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}
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/* Set up poodle 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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return 0;
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}
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static unsigned int poodle_config_sysclk(struct snd_soc_pcm_runtime *rtd,
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struct snd_soc_clock_info *info)
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{
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if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) {
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/* pxa2xx is i2s master */
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switch (info->rate) {
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case 44100:
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case 88200:
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/* configure codec digital filters for 44.1, 88.2 */
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rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
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11289600);
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break;
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default:
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/* configure codec digital filters for all other rates */
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rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
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POODLE_AUDIO_CLOCK);
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break;
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}
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return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info,
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POODLE_AUDIO_CLOCK);
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} else {
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/* codec is i2s master -
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* only configure codec DAI clock and filters */
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return rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
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POODLE_AUDIO_CLOCK);
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}
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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 = &pxa_i2s_dai,
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.codec_dai = &wm8731_dai,
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.init = poodle_wm8731_init,
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.config_sysclk = poodle_config_sysclk,
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};
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/* poodle audio machine driver */
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static struct snd_soc_machine snd_soc_machine_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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.ops = &poodle_ops,
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};
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/* poodle audio private data */
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static struct wm8731_setup_data poodle_wm8731_setup = {
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.i2c_address = 0x1b,
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};
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/* poodle audio subsystem */
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static struct snd_soc_device poodle_snd_devdata = {
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.machine = &snd_soc_machine_poodle,
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.platform = &pxa2xx_soc_platform,
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.codec_dev = &soc_codec_dev_wm8731,
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.codec_data = &poodle_wm8731_setup,
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};
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static struct platform_device *poodle_snd_device;
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static int __init poodle_init(void)
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{
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int ret;
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if (!machine_is_poodle())
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return -ENODEV;
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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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poodle_snd_device = platform_device_alloc("soc-audio", -1);
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if (!poodle_snd_device)
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return -ENOMEM;
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platform_set_drvdata(poodle_snd_device, &poodle_snd_devdata);
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poodle_snd_devdata.dev = &poodle_snd_device->dev;
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ret = platform_device_add(poodle_snd_device);
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if (ret)
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platform_device_put(poodle_snd_device);
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return ret;
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}
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static void __exit poodle_exit(void)
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{
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platform_device_unregister(poodle_snd_device);
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}
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module_init(poodle_init);
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module_exit(poodle_exit);
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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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