Find attached a full patch for GTA02 sound.
In discussion with Liam about scenarios I felt that hardcoding in the
driver for GTA02 was the wrong thing to do. It left us with no
flexibility. So now all DAPM inputs and outputs can be controlled in
the mixer they are given the names "DAPM *" mute turns that output
off from the codec, unmute turns it on. (this isnt a real on off, just
used by the codec power management for routing).
The Amp On/Off and Spk/Headphone switch is also in the mixer.
On suspend/resume the Amp should be turned off/on and on properly.
This will of course require new state files, but as GSM seems to be
non-functional on this GTA02 its hard for me to test them.
Also when I play music at loud volume through the amp it invariably
end with GTA02 crashing (locks up and lcd turns off) after a random
amount of time.
Thanks
Graeme
Index: linux-2.6.22/sound/soc/s3c24xx/neo1973_gta02_wm8753.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.22/sound/soc/s3c24xx/neo1973_gta02_wm8753.c 2007-11-06 16:35:52.000000000 +0000
@@ -0,0 +1,662 @@
+/*
+ * neo1973_gta02_wm8753.c -- SoC audio for Neo1973
+ *
+ * Copyright 2007 OpenMoko Inc
+ * Author: Graeme Gregory <[EMAIL PROTECTED]>
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory <[EMAIL PROTECTED]>
+ *
+ * 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 <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <sound/driver.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware/scoop.h>
+#include <asm/arch/regs-iis.h>
+#include <asm/arch/regs-clock.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/hardware.h>
+#include <asm/arch/audio.h>
+#include <asm/io.h>
+#include <asm/arch/spi-gpio.h>
+#include <asm/arch/regs-gpioj.h>
+#include <asm/arch/gta02.h>
+#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_AMP) >> 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,
+},
+};
+
+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;
+}
+
+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, [EMAIL PROTECTED]");
+MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
+MODULE_LICENSE("GPL");
+
Index: linux-2.6.22/sound/soc/s3c24xx/Kconfig
===================================================================
--- linux-2.6.22.orig/sound/soc/s3c24xx/Kconfig 2007-11-06 15:31:50.000000000 +0000
+++ linux-2.6.22/sound/soc/s3c24xx/Kconfig 2007-11-06 15:31:55.000000000 +0000
@@ -25,6 +25,15 @@
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
Index: linux-2.6.22/sound/soc/s3c24xx/Makefile
===================================================================
--- linux-2.6.22.orig/sound/soc/s3c24xx/Makefile 2007-11-06 15:31:49.000000000 +0000
+++ linux-2.6.22/sound/soc/s3c24xx/Makefile 2007-11-06 15:31:55.000000000 +0000
@@ -10,6 +10,9 @@
# S3C24XX Machine Support
snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.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_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
+
Index: linux-2.6.22/include/sound/soc-dapm.h
===================================================================
--- linux-2.6.22.orig/include/sound/soc-dapm.h 2007-07-09 00:32:17.000000000 +0100
+++ linux-2.6.22/include/sound/soc-dapm.h 2007-11-06 15:31:55.000000000 +0000
@@ -206,6 +206,8 @@
/* dapm audio endpoint control */
int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
char *pin, int status);
+int snd_soc_dapm_get_endpoint(struct snd_soc_codec *codec,
+ char *pin);
int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec);
/* dapm widget types */
Index: linux-2.6.22/sound/soc/soc-dapm.c
===================================================================
--- linux-2.6.22.orig/sound/soc/soc-dapm.c 2007-07-09 00:32:17.000000000 +0100
+++ linux-2.6.22/sound/soc/soc-dapm.c 2007-11-06 15:31:55.000000000 +0000
@@ -1305,6 +1305,30 @@
EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint);
/**
+ * 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
*
