From 5915ea88b0b6ada7fc5234239feec5d4960887df Mon Sep 17 00:00:00 2001 From: mokopatches Date: Wed, 19 Nov 2008 17:03:15 +0000 Subject: gta02-sound.patch --- sound/soc/s3c24xx/Kconfig | 9 + sound/soc/s3c24xx/Makefile | 3 + sound/soc/s3c24xx/neo1973_gta02_wm8753.c | 667 +++++++++++++++++++++++++++++++ sound/soc/soc-dapm.c | 24 ++ 4 files changed, 703 insertions(+) create mode 100644 sound/soc/s3c24xx/neo1973_gta02_wm8753.c (limited to 'sound') diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig index b9f2353effe..06385721bcd 100644 --- a/sound/soc/s3c24xx/Kconfig +++ b/sound/soc/s3c24xx/Kconfig @@ -26,6 +26,15 @@ config SND_S3C24XX_SOC_NEO1973_WM8753 Say Y if you want to add support for SoC audio on smdk2440 with the WM8753. +config SND_S3C24XX_SOC_NEO1973_GTA02_WM8753 + tristate "SoC I2S Audio support for NEO1973 GTA02 - WM8753" + depends on SND_S3C24XX_SOC && MACH_NEO1973_GTA02 + select SND_S3C24XX_SOC_I2S + select SND_SOC_WM8753 + help + Say Y if you want to add support for SoC audio on neo1973 gta02 + with the WM8753 codec + config SND_S3C24XX_SOC_SMDK2443_WM9710 tristate "SoC AC97 Audio support for SMDK2443 - WM9710" depends on SND_S3C24XX_SOC && MACH_SMDK2443 diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile index 0aa5fb0b970..f154cb142a2 100644 --- a/sound/soc/s3c24xx/Makefile +++ b/sound/soc/s3c24xx/Makefile @@ -13,7 +13,10 @@ obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o +snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o +obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o + diff --git a/sound/soc/s3c24xx/neo1973_gta02_wm8753.c b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c new file mode 100644 index 00000000000..f32cba319cd --- /dev/null +++ b/sound/soc/s3c24xx/neo1973_gta02_wm8753.c @@ -0,0 +1,667 @@ +/* + * neo1973_gta02_wm8753.c -- SoC audio for Neo1973 + * + * Copyright 2007 OpenMoko Inc + * Author: Graeme Gregory + * Copyright 2007 Wolfson Microelectronics PLC. + * Author: Graeme Gregory + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Revision history + * 06th Nov 2007 Changed from GTA01 to GTA02 + * 20th Jan 2007 Initial version. + * 05th Feb 2007 Rename all to Neo1973 + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../codecs/wm8753.h" +#include "s3c24xx-pcm.h" +#include "s3c24xx-i2s.h" + +/* define the scenarios */ +#define NEO_AUDIO_OFF 0 +#define NEO_GSM_CALL_AUDIO_HANDSET 1 +#define NEO_GSM_CALL_AUDIO_HEADSET 2 +#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3 +#define NEO_STEREO_TO_SPEAKERS 4 +#define NEO_STEREO_TO_HEADPHONES 5 +#define NEO_CAPTURE_HANDSET 6 +#define NEO_CAPTURE_HEADSET 7 +#define NEO_CAPTURE_BLUETOOTH 8 +#define NEO_STEREO_TO_HANDSET_SPK 9 + +static struct snd_soc_machine neo1973_gta02; + +static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + unsigned int pll_out = 0, bclk = 0; + int ret = 0; + unsigned long iis_clkrate; + + iis_clkrate = s3c24xx_i2s_get_clockrate(); + + switch (params_rate(params)) { + case 8000: + case 16000: + pll_out = 12288000; + break; + case 48000: + bclk = WM8753_BCLK_DIV_4; + pll_out = 12288000; + break; + case 96000: + bclk = WM8753_BCLK_DIV_2; + pll_out = 12288000; + break; + case 11025: + bclk = WM8753_BCLK_DIV_16; + pll_out = 11289600; + break; + case 22050: + bclk = WM8753_BCLK_DIV_8; + pll_out = 11289600; + break; + case 44100: + bclk = WM8753_BCLK_DIV_4; + pll_out = 11289600; + break; + case 88200: + bclk = WM8753_BCLK_DIV_2; + pll_out = 11289600; + break; + } + + /* set codec DAI configuration */ + ret = codec_dai->dai_ops.set_fmt(codec_dai, + SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = cpu_dai->dai_ops.set_fmt(cpu_dai, + SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM); + if (ret < 0) + return ret; + + /* set the codec system clock for DAC and ADC */ + ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8753_MCLK, pll_out, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* set MCLK division for sample rate */ + ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, + S3C2410_IISMOD_32FS ); + if (ret < 0) + return ret; + + /* set codec BCLK division for sample rate */ + ret = codec_dai->dai_ops.set_clkdiv(codec_dai, + WM8753_BCLKDIV, bclk); + if (ret < 0) + return ret; + + /* set prescaler division for sample rate */ + ret = cpu_dai->dai_ops.set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER, + S3C24XX_PRESCALE(4,4)); + if (ret < 0) + return ret; + + /* codec PLL input is PCLK/4 */ + ret = codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL1, + iis_clkrate / 4, pll_out); + if (ret < 0) + return ret; + + return 0; +} + +static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + + /* disable the PLL */ + return codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL1, 0, 0); +} + +/* + * Neo1973 WM8753 HiFi DAI opserations. + */ +static struct snd_soc_ops neo1973_gta02_hifi_ops = { + .hw_params = neo1973_gta02_hifi_hw_params, + .hw_free = neo1973_gta02_hifi_hw_free, +}; + +static int neo1973_gta02_voice_hw_params( + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + unsigned int pcmdiv = 0; + int ret = 0; + unsigned long iis_clkrate; + + iis_clkrate = s3c24xx_i2s_get_clockrate(); + + if (params_rate(params) != 8000) + return -EINVAL; + if (params_channels(params) != 1) + return -EINVAL; + + pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */ + + /* todo: gg check mode (DSP_B) against CSR datasheet */ + /* set codec DAI configuration */ + ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set the codec system clock for DAC and ADC */ + ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8753_PCMCLK, + 12288000, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* set codec PCM division for sample rate */ + ret = codec_dai->dai_ops.set_clkdiv(codec_dai, WM8753_PCMDIV, + pcmdiv); + if (ret < 0) + return ret; + + /* configue and enable PLL for 12.288MHz output */ + ret = codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL2, + iis_clkrate / 4, 12288000); + if (ret < 0) + return ret; + + return 0; +} + +static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + + /* disable the PLL */ + return codec_dai->dai_ops.set_pll(codec_dai, WM8753_PLL2, 0, 0); +} + +static struct snd_soc_ops neo1973_gta02_voice_ops = { + .hw_params = neo1973_gta02_voice_hw_params, + .hw_free = neo1973_gta02_voice_hw_free, +}; + +#define LM4853_AMP 1 +#define LM4853_SPK 2 + +static u8 lm4853_state=0; + +static int lm4853_set_state(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = ucontrol->value.integer.value[0]; + + if(val) { + lm4853_state |= LM4853_AMP; + s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT,0); + } else { + lm4853_state &= ~LM4853_AMP; + s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT,1); + } + + return 0; +} + +static int lm4853_get_state(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP; + + return 0; +} + +static int lm4853_set_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val = ucontrol->value.integer.value[0]; + + if(val) { + lm4853_state |= LM4853_SPK; + s3c2410_gpio_setpin(GTA02_GPIO_HP_IN,0); + } else { + lm4853_state &= ~LM4853_SPK; + s3c2410_gpio_setpin(GTA02_GPIO_HP_IN,1); + } + + return 0; +} + +static int lm4853_get_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1; + + return 0; +} + +static int neo1973_gta02_set_stereo_out(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "Stereo Out", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_stereo_out(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "Stereo Out"); + + return 0; +} + + +static int neo1973_gta02_set_gsm_out(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "GSM Line Out", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_gsm_out(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "GSM Line Out"); + + return 0; +} + +static int neo1973_gta02_set_gsm_in(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "GSM Line In", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_gsm_in(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "GSM Line In"); + + return 0; +} + +static int neo1973_gta02_set_headset_mic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "Headset Mic", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_headset_mic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "Headset Mic"); + + return 0; +} + +static int neo1973_gta02_set_handset_mic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "Handset Mic", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_handset_mic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "Handset Mic"); + + return 0; +} + +static int neo1973_gta02_set_handset_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int val = ucontrol->value.integer.value[0]; + + snd_soc_dapm_set_endpoint(codec, "Handset Spk", val); + + snd_soc_dapm_sync_endpoints(codec); + + return 0; +} + +static int neo1973_gta02_get_handset_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_endpoint(codec, "Handset Spk"); + + return 0; +} + +static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Stereo Out", NULL), + SND_SOC_DAPM_LINE("GSM Line Out", NULL), + SND_SOC_DAPM_LINE("GSM Line In", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Handset Mic", NULL), + SND_SOC_DAPM_SPK("Handset Spk", NULL), +}; + + +/* example machine audio_mapnections */ +static const char* audio_map[][3] = { + + /* Connections to the lm4853 amp */ + {"Stereo Out", NULL, "LOUT1"}, + {"Stereo Out", NULL, "ROUT1"}, + + /* Connections to the GSM Module */ + {"GSM Line Out", NULL, "MONO1"}, + {"GSM Line Out", NULL, "MONO2"}, + {"RXP", NULL, "GSM Line In"}, + {"RXN", NULL, "GSM Line In"}, + + /* Connections to Headset */ + {"MIC1", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Headset Mic"}, + + /* Call Mic */ + {"MIC2", NULL, "Mic Bias"}, + {"MIC2N", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Handset Mic"}, + + /* Call Speaker */ + {"Handset Spk", NULL, "LOUT2"}, + {"Handset Spk", NULL, "ROUT2"}, + + /* Connect the ALC pins */ + {"ACIN", NULL, "ACOP"}, + + {NULL, NULL, NULL}, +}; + +static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = { + SOC_SINGLE_EXT("DAPM Stereo Out Switch", 0, 0, 1, 0, + neo1973_gta02_get_stereo_out, + neo1973_gta02_set_stereo_out), + SOC_SINGLE_EXT("DAPM GSM Line Out Switch", 1, 0, 1, 0, + neo1973_gta02_get_gsm_out, + neo1973_gta02_set_gsm_out), + SOC_SINGLE_EXT("DAPM GSM Line In Switch", 2, 0, 1, 0, + neo1973_gta02_get_gsm_in, + neo1973_gta02_set_gsm_in), + SOC_SINGLE_EXT("DAPM Headset Mic Switch", 3, 0, 1, 0, + neo1973_gta02_get_headset_mic, + neo1973_gta02_set_headset_mic), + SOC_SINGLE_EXT("DAPM Handset Mic Switch", 4, 0, 1, 0, + neo1973_gta02_get_handset_mic, + neo1973_gta02_set_handset_mic), + SOC_SINGLE_EXT("DAPM Handset Spk Switch", 5, 0, 1, 0, + neo1973_gta02_get_handset_spk, + neo1973_gta02_set_handset_spk), + SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0, + lm4853_get_state, + lm4853_set_state), + SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0, + lm4853_get_spk, + lm4853_set_spk), +}; + +/* + * This is an example machine initialisation for a wm8753 connected to a + * neo1973 GTA02. + */ +static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec) +{ + int i, err; + + /* set up NC codec pins */ + snd_soc_dapm_set_endpoint(codec, "OUT3", 0); + snd_soc_dapm_set_endpoint(codec, "OUT4", 0); + snd_soc_dapm_set_endpoint(codec, "LINE1", 0); + snd_soc_dapm_set_endpoint(codec, "LINE2", 0); + + /* Add neo1973 gta02 specific widgets */ + for (i = 0; i < ARRAY_SIZE(wm8753_dapm_widgets); i++) + snd_soc_dapm_new_control(codec, &wm8753_dapm_widgets[i]); + + /* add neo1973 gta02 specific controls */ + for (i = 0; i < ARRAY_SIZE(wm8753_neo1973_gta02_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&wm8753_neo1973_gta02_controls[i], + codec, NULL)); + if (err < 0) + return err; + } + + /* set up neo1973 gta02 specific audio path audio_mapnects */ + for (i = 0; audio_map[i][0] != NULL; i++) { + snd_soc_dapm_connect_input(codec, audio_map[i][0], + audio_map[i][1], audio_map[i][2]); + } + + /* set endpoints to default off mode */ + snd_soc_dapm_set_endpoint(codec, "Stereo Out", 0); + snd_soc_dapm_set_endpoint(codec, "GSM Line Out",0); + snd_soc_dapm_set_endpoint(codec, "GSM Line In", 0); + snd_soc_dapm_set_endpoint(codec, "Headset Mic", 0); + snd_soc_dapm_set_endpoint(codec, "Handset Mic", 0); + snd_soc_dapm_set_endpoint(codec, "Handset Spk", 0); + + snd_soc_dapm_sync_endpoints(codec); + return 0; +} + +/* + * BT Codec DAI + */ +static struct snd_soc_cpu_dai bt_dai = +{ .name = "Bluetooth", + .id = 0, + .type = SND_SOC_DAI_PCM, + .playback = { + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .capture = { + .channels_min = 1, + .channels_max = 1, + .rates = SNDRV_PCM_RATE_8000, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, +}; + +static struct snd_soc_dai_link neo1973_gta02_dai[] = { +{ /* Hifi Playback - for similatious use with voice below */ + .name = "WM8753", + .stream_name = "WM8753 HiFi", + .cpu_dai = &s3c24xx_i2s_dai, + .codec_dai = &wm8753_dai[WM8753_DAI_HIFI], + .init = neo1973_gta02_wm8753_init, + .ops = &neo1973_gta02_hifi_ops, +}, +{ /* Voice via BT */ + .name = "Bluetooth", + .stream_name = "Voice", + .cpu_dai = &bt_dai, + .codec_dai = &wm8753_dai[WM8753_DAI_VOICE], + .ops = &neo1973_gta02_voice_ops, +}, +}; + +#ifdef CONFIG_PM +int neo1973_gta02_suspend(struct platform_device *pdev, pm_message_t state) +{ + s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1); + + return 0; +} + +int neo1973_gta02_resume(struct platform_device *pdev) +{ + if(lm4853_state & LM4853_AMP) + s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 0); + + return 0; +} +#else +#define neo1973_gta02_suspend NULL +#define neo1973_gta02_resume NULL +#endif + +static struct snd_soc_machine neo1973_gta02 = { + .name = "neo1973-gta02", + .suspend_pre = neo1973_gta02_suspend, + .resume_post = neo1973_gta02_resume, + .dai_link = neo1973_gta02_dai, + .num_links = ARRAY_SIZE(neo1973_gta02_dai), +}; + +static struct wm8753_setup_data neo1973_gta02_wm8753_setup = { + .i2c_address = 0x1a, +}; + +static struct snd_soc_device neo1973_gta02_snd_devdata = { + .machine = &neo1973_gta02, + .platform = &s3c24xx_soc_platform, + .codec_dev = &soc_codec_dev_wm8753, + .codec_data = &neo1973_gta02_wm8753_setup, +}; + +static struct platform_device *neo1973_gta02_snd_device; + +static int __init neo1973_gta02_init(void) +{ + int ret; + + if (!machine_is_neo1973_gta02()) { + printk(KERN_INFO + "Only GTA02 hardware supported by ASoc driver\n"); + return -ENODEV; + } + + neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1); + if (!neo1973_gta02_snd_device) + return -ENOMEM; + + platform_set_drvdata(neo1973_gta02_snd_device, + &neo1973_gta02_snd_devdata); + neo1973_gta02_snd_devdata.dev = &neo1973_gta02_snd_device->dev; + ret = platform_device_add(neo1973_gta02_snd_device); + + if (ret) + platform_device_put(neo1973_gta02_snd_device); + + /* Initialise GPIOs used by amp */ + s3c2410_gpio_cfgpin(GTA02_GPIO_HP_IN, S3C2410_GPIO_OUTPUT); + s3c2410_gpio_cfgpin(GTA02_GPIO_AMP_SHUT, S3C2410_GPIO_OUTPUT); + + /* Amp off by default */ + s3c2410_gpio_setpin(GTA02_GPIO_AMP_SHUT, 1); + + /* Speaker off by default */ + s3c2410_gpio_setpin(GTA02_GPIO_HP_IN, 1); + + return ret; +} + +static void __exit neo1973_gta02_exit(void) +{ + platform_device_unregister(neo1973_gta02_snd_device); +} + +module_init(neo1973_gta02_init); +module_exit(neo1973_gta02_exit); + +/* Module information */ +MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org"); +MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02"); +MODULE_LICENSE("GPL"); + diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 7351db9606e..6a41d200487 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -1524,6 +1524,30 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin) } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); +/** + * snd_soc_dapm_get_endpoint - get audio endpoint status + * @codec: audio codec + * @endpoint: audio signal endpoint (or start point) + * + * Get audio endpoint status - connected or disconnected. + * + * Returns status + */ +int snd_soc_dapm_get_endpoint(struct snd_soc_codec *codec, + char *endpoint) +{ + struct snd_soc_dapm_widget *w; + + list_for_each_entry(w, &codec->dapm_widgets, list) { + if (!strcmp(w->name, endpoint)) { + return w->connected; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_get_endpoint); + /** * snd_soc_dapm_free - free dapm resources * @socdev: SoC device -- cgit v1.2.3