1 files changed, 279 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/soc/omap/sdp3430.c b/ANDROID_3.4.5/sound/soc/omap/sdp3430.c
new file mode 100644
index 00000000..0e283226
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/omap/sdp3430.c
@@ -0,0 +1,279 @@
+/*
+ * sdp3430.c  --  SoC audio for TI OMAP3430 SDP
+ *
+ * Author: Misael Lopez Cruz <x0052729@ti.com>
+ *
+ * Based on:
+ * Author: Steve Sakoman <steve@sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <plat/mcbsp.h>
+
+/* Register descriptions for twl4030 codec part */
+#include <linux/mfd/twl4030-audio.h>
+#include <linux/module.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+
+/* TWL4030 PMBR1 Register */
+#define TWL4030_INTBR_PMBR1		0x0D
+/* TWL4030 PMBR1 Register GPIO6 mux bit */
+#define TWL4030_GPIO6_PWM0_MUTE(value)	(value << 2)
+
+static struct snd_soc_card snd_soc_sdp3430;
+
+static int sdp3430_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_dai *codec_dai = rtd->codec_dai;
+	int ret;
+
+	/* Set the codec system clock for DAC and ADC */
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
+					    SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		printk(KERN_ERR "can't set codec system clock\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct snd_soc_ops sdp3430_ops = {
+	.hw_params = sdp3430_hw_params,
+};
+
+/* Headset jack */
+static struct snd_soc_jack hs_jack;
+
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin hs_jack_pins[] = {
+	{
+		.pin = "Headset Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+	{
+		.pin = "Headset Stereophone",
+		.mask = SND_JACK_HEADPHONE,
+	},
+};
+
+/* Headset jack detection gpios */
+static struct snd_soc_jack_gpio hs_jack_gpios[] = {
+	{
+		.gpio = (OMAP_MAX_GPIO_LINES + 2),
+		.name = "hsdet-gpio",
+		.report = SND_JACK_HEADSET,
+		.debounce_time = 200,
+	},
+};
+
+/* SDP3430 machine DAPM */
+static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
+	SND_SOC_DAPM_MIC("Ext Mic", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	/* External Mics: MAINMIC, SUBMIC with bias*/
+	{"MAINMIC", NULL, "Mic Bias 1"},
+	{"SUBMIC", NULL, "Mic Bias 2"},
+	{"Mic Bias 1", NULL, "Ext Mic"},
+	{"Mic Bias 2", NULL, "Ext Mic"},
+
+	/* External Speakers: HFL, HFR */
+	{"Ext Spk", NULL, "HFL"},
+	{"Ext Spk", NULL, "HFR"},
+
+	/* Headset Mic: HSMIC with bias */
+	{"HSMIC", NULL, "Headset Mic Bias"},
+	{"Headset Mic Bias", NULL, "Headset Mic"},
+
+	/* Headset Stereophone (Headphone): HSOL, HSOR */
+	{"Headset Stereophone", NULL, "HSOL"},
+	{"Headset Stereophone", NULL, "HSOR"},
+};
+
+static int sdp3430_twl4030_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	int ret;
+
+	/* SDP3430 connected pins */
+	snd_soc_dapm_enable_pin(dapm, "Ext Mic");
+	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+	snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
+
+	/* TWL4030 not connected pins */
+	snd_soc_dapm_nc_pin(dapm, "AUXL");
+	snd_soc_dapm_nc_pin(dapm, "AUXR");
+	snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
+	snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
+	snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
+
+	snd_soc_dapm_nc_pin(dapm, "OUTL");
+	snd_soc_dapm_nc_pin(dapm, "OUTR");
+	snd_soc_dapm_nc_pin(dapm, "EARPIECE");
+	snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
+	snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
+	snd_soc_dapm_nc_pin(dapm, "CARKITL");
+	snd_soc_dapm_nc_pin(dapm, "CARKITR");
+
+	/* Headset jack detection */
+	ret = snd_soc_jack_new(codec, "Headset Jack",
+				SND_JACK_HEADSET, &hs_jack);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
+				hs_jack_pins);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
+				hs_jack_gpios);
+
+	return ret;
+}
+
+static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	unsigned short reg;
+
+	/* Enable voice interface */
+	reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF);
+	reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
+	codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg);
+
+	return 0;
+}
+
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link sdp3430_dai[] = {
+	{
+		.name = "TWL4030 I2S",
+		.stream_name = "TWL4030 Audio",
+		.cpu_dai_name = "omap-mcbsp.2",
+		.codec_dai_name = "twl4030-hifi",
+		.platform_name = "omap-pcm-audio",
+		.codec_name = "twl4030-codec",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			   SND_SOC_DAIFMT_CBM_CFM,
+		.init = sdp3430_twl4030_init,
+		.ops = &sdp3430_ops,
+	},
+	{
+		.name = "TWL4030 PCM",
+		.stream_name = "TWL4030 Voice",
+		.cpu_dai_name = "omap-mcbsp.3",
+		.codec_dai_name = "twl4030-voice",
+		.platform_name = "omap-pcm-audio",
+		.codec_name = "twl4030-codec",
+		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
+			   SND_SOC_DAIFMT_CBM_CFM,
+		.init = sdp3430_twl4030_voice_init,
+		.ops = &sdp3430_ops,
+	},
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_sdp3430 = {
+	.name = "SDP3430",
+	.owner = THIS_MODULE,
+	.dai_link = sdp3430_dai,
+	.num_links = ARRAY_SIZE(sdp3430_dai),
+
+	.dapm_widgets = sdp3430_twl4030_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(sdp3430_twl4030_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
+};
+
+static struct platform_device *sdp3430_snd_device;
+
+static int __init sdp3430_soc_init(void)
+{
+	int ret;
+	u8 pin_mux;
+
+	if (!machine_is_omap_3430sdp())
+		return -ENODEV;
+	printk(KERN_INFO "SDP3430 SoC init\n");
+
+	sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
+	if (!sdp3430_snd_device) {
+		printk(KERN_ERR "Platform device allocation failed\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430);
+
+	/* Set TWL4030 GPIO6 as EXTMUTE signal */
+	twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux,
+						TWL4030_INTBR_PMBR1);
+	pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03);
+	pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02);
+	twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux,
+						TWL4030_INTBR_PMBR1);
+
+	ret = platform_device_add(sdp3430_snd_device);
+	if (ret)
+		goto err1;
+
+	return 0;
+
+err1:
+	printk(KERN_ERR "Unable to add platform device\n");
+	platform_device_put(sdp3430_snd_device);
+
+	return ret;
+}
+module_init(sdp3430_soc_init);
+
+static void __exit sdp3430_soc_exit(void)
+{
+	snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
+				hs_jack_gpios);
+
+	platform_device_unregister(sdp3430_snd_device);
+}
+module_exit(sdp3430_soc_exit);
+
+MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
+MODULE_DESCRIPTION("ALSA SoC SDP3430");
+MODULE_LICENSE("GPL");
+