mirror of https://gitee.com/openkylin/linux.git
[ALSA] ASoC pxa2xx Spitz machine support
This patch adds Alsa audio support to the Sharp Zaurus SL-C1000/SL-C3x00 (Akita/Spitz) machines. 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
a1eb4b3caf
commit
7fb290d03a
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/*
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* spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
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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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* Revision history
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* 30th Nov 2005 Initial 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/scoop.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/akita.h>
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#include <asm/arch/spitz.h>
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#include <asm/mach-types.h>
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#include "../codecs/wm8750.h"
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#include "pxa2xx-pcm.h"
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#define SPITZ_HP 0
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#define SPITZ_MIC 1
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#define SPITZ_LINE 2
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#define SPITZ_HEADSET 3
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#define SPITZ_HP_OFF 4
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#define SPITZ_SPK_ON 0
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#define SPITZ_SPK_OFF 1
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/* audio clock in Hz - rounded from 12.235MHz */
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#define SPITZ_AUDIO_CLOCK 12288000
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static int spitz_jack_func;
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static int spitz_spk_func;
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static void spitz_ext_control(struct snd_soc_codec *codec)
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{
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if (spitz_spk_func == SPITZ_SPK_ON)
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snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1);
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else
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snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0);
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/* set up jack connection */
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switch (spitz_jack_func) {
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case SPITZ_HP:
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/* enable and unmute hp jack, disable mic bias */
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1);
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set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
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set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
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break;
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case SPITZ_MIC:
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/* enable mic jack and bias, mute hp */
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
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break;
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case SPITZ_LINE:
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/* enable line jack, disable mic bias and mute hp */
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", 1);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
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break;
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case SPITZ_HEADSET:
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/* enable and unmute headset jack enable mic bias, mute L hp */
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
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set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
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break;
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case SPITZ_HP_OFF:
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/* jack removed, everything off */
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snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
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snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
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reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
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break;
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}
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snd_soc_dapm_sync_endpoints(codec);
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}
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static int spitz_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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spitz_ext_control(codec);
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return 0;
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}
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static struct snd_soc_ops spitz_ops = {
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.startup = spitz_startup,
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};
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static int spitz_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] = spitz_jack_func;
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return 0;
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}
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static int spitz_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 (spitz_jack_func == ucontrol->value.integer.value[0])
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return 0;
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spitz_jack_func = ucontrol->value.integer.value[0];
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spitz_ext_control(codec);
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return 1;
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}
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static int spitz_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] = spitz_spk_func;
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return 0;
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}
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static int spitz_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 (spitz_spk_func == ucontrol->value.integer.value[0])
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return 0;
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spitz_spk_func = ucontrol->value.integer.value[0];
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spitz_ext_control(codec);
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return 1;
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}
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static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event)
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{
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if (machine_is_borzoi() || machine_is_spitz()) {
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if (SND_SOC_DAPM_EVENT_ON(event))
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set_scoop_gpio(&spitzscoop2_device.dev,
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SPITZ_SCP2_MIC_BIAS);
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else
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reset_scoop_gpio(&spitzscoop2_device.dev,
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SPITZ_SCP2_MIC_BIAS);
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}
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if (machine_is_akita()) {
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if (SND_SOC_DAPM_EVENT_ON(event))
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akita_set_ioexp(&akitaioexp_device.dev,
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AKITA_IOEXP_MIC_BIAS);
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else
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akita_reset_ioexp(&akitaioexp_device.dev,
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AKITA_IOEXP_MIC_BIAS);
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}
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return 0;
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}
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/* spitz machine dapm widgets */
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static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_LINE("Line Jack", NULL),
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/* headset is a mic and mono headphone */
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SND_SOC_DAPM_HP("Headset Jack", NULL),
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};
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/* Spitz machine audio_map */
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static const char *audio_map[][3] = {
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/* headphone connected to LOUT1, ROUT1 */
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{"Headphone Jack", NULL, "LOUT1"},
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{"Headphone Jack", NULL, "ROUT1"},
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/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
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{"Headset Jack", NULL, "ROUT1"},
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/* ext speaker connected to LOUT2, ROUT2 */
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{"Ext Spk", NULL , "ROUT2"},
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{"Ext Spk", NULL , "LOUT2"},
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/* mic is connected to input 1 - with bias */
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{"LINPUT1", NULL, "Mic Bias"},
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{"Mic Bias", NULL, "Mic Jack"},
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/* line is connected to input 1 - no bias */
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{"LINPUT1", 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 spitz_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 wm8750_spitz_controls[] = {
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SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
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spitz_set_jack),
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SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
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spitz_set_spk),
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};
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/*
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* Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
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*/
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static int spitz_wm8750_init(struct snd_soc_codec *codec)
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{
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int i, err;
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/* NC codec pins */
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snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0);
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snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0);
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snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0);
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snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0);
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snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0);
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snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
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snd_soc_dapm_set_endpoint(codec, "MONO", 0);
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/* Add spitz specific controls */
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for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) {
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err = snd_ctl_add(codec->card,
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snd_soc_cnew(&wm8750_spitz_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 spitz specific widgets */
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for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) {
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snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]);
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}
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/* Set up spitz 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 spitz_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 11025:
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case 22050:
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case 44100:
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case 88200:
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/* configure codec digital filters
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* for 11.025, 22.05, 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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SPITZ_AUDIO_CLOCK);
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break;
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}
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/* configure pxa2xx i2s interface clocks as master */
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return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info,
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SPITZ_AUDIO_CLOCK);
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} else {
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/* codec is i2s master - only configure codec DAI clock */
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return rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
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SPITZ_AUDIO_CLOCK);
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}
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}
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/* spitz digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link spitz_dai = {
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.name = "wm8750",
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.stream_name = "WM8750",
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.cpu_dai = &pxa_i2s_dai,
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.codec_dai = &wm8750_dai,
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.init = spitz_wm8750_init,
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.config_sysclk = spitz_config_sysclk,
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};
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/* spitz audio machine driver */
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static struct snd_soc_machine snd_soc_machine_spitz = {
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.name = "Spitz",
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.dai_link = &spitz_dai,
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.num_links = 1,
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.ops = &spitz_ops,
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};
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/* spitz audio private data */
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static struct wm8750_setup_data spitz_wm8750_setup = {
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.i2c_address = 0x1b,
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};
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/* spitz audio subsystem */
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static struct snd_soc_device spitz_snd_devdata = {
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.machine = &snd_soc_machine_spitz,
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.platform = &pxa2xx_soc_platform,
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.codec_dev = &soc_codec_dev_wm8750,
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.codec_data = &spitz_wm8750_setup,
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};
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static struct platform_device *spitz_snd_device;
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static int __init spitz_init(void)
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{
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int ret;
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if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
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return -ENODEV;
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spitz_snd_device = platform_device_alloc("soc-audio", -1);
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if (!spitz_snd_device)
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return -ENOMEM;
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platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
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spitz_snd_devdata.dev = &spitz_snd_device->dev;
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ret = platform_device_add(spitz_snd_device);
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if (ret)
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platform_device_put(spitz_snd_device);
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return ret;
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}
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static void __exit spitz_exit(void)
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{
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platform_device_unregister(spitz_snd_device);
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}
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module_init(spitz_init);
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module_exit(spitz_exit);
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MODULE_AUTHOR("Richard Purdie");
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MODULE_DESCRIPTION("ALSA SoC Spitz");
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MODULE_LICENSE("GPL");
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