---

yaml
---
r: 92046
b: refs/heads/master
c: 310355c
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b40b04ad380ad641e5740486e4b9a56fd32b64cc
+refs/heads/master: 310355c111dbae005269fe3fc39afdd60779bf5d

trunk/sound/soc/Kconfig

@@ -29,6 +29,7 @@ source "sound/soc/pxa/Kconfig"
 source "sound/soc/s3c24xx/Kconfig"
 source "sound/soc/sh/Kconfig"
 source "sound/soc/fsl/Kconfig"
+source "sound/soc/davinci/Kconfig"
 
 # Supported codecs
 source "sound/soc/codecs/Kconfig"

trunk/sound/soc/Makefile

@@ -1,4 +1,4 @@
 snd-soc-core-objs := soc-core.o soc-dapm.o
 
 obj-$(CONFIG_SND_SOC)	+= snd-soc-core.o
-obj-$(CONFIG_SND_SOC)	+= codecs/ at91/ pxa/ s3c24xx/ sh/ fsl/
+obj-$(CONFIG_SND_SOC)	+= codecs/ at91/ pxa/ s3c24xx/ sh/ fsl/ davinci/

trunk/sound/soc/davinci/Kconfig

@@ -0,0 +1,19 @@
+config SND_DAVINCI_SOC
+	tristate "SoC Audio for the TI DAVINCI chip"
+	depends on ARCH_DAVINCI && SND_SOC
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the DAVINCI AC97 or I2S interface. You will also need
+	  to select the audio interfaces to support below.
+
+config SND_DAVINCI_SOC_I2S
+	tristate
+
+config SND_DAVINCI_SOC_EVM
+	tristate "SoC Audio support for DaVinci EVM"
+	depends on SND_DAVINCI_SOC && MACH_DAVINCI_EVM
+	select SND_DAVINCI_SOC_I2S
+	select SND_SOC_TLV320AIC3X
+	help
+	  Say Y if you want to add support for SoC audio on TI
+	  DaVinci EVM platform.

trunk/sound/soc/davinci/Makefile

@@ -0,0 +1,11 @@
+# DAVINCI Platform Support
+snd-soc-davinci-objs := davinci-pcm.o
+snd-soc-davinci-i2s-objs := davinci-i2s.o
+
+obj-$(CONFIG_SND_DAVINCI_SOC) += snd-soc-davinci.o
+obj-$(CONFIG_SND_DAVINCI_SOC_I2S) += snd-soc-davinci-i2s.o
+
+# DAVINCI Machine Support
+snd-soc-evm-objs := davinci-evm.o
+
+obj-$(CONFIG_SND_DAVINCI_SOC_EVM) += snd-soc-evm.o

trunk/sound/soc/davinci/davinci-evm.c

@@ -0,0 +1,208 @@
+/*
+ * ASoC driver for TI DAVINCI EVM platform
+ *
+ * Author:      Vladimir Barinov, <vbarinov@ru.mvista.com>
+ * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.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.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.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/dma.h>
+#include <asm/arch/hardware.h>
+
+#include "../codecs/tlv320aic3x.h"
+#include "davinci-pcm.h"
+#include "davinci-i2s.h"
+
+#define EVM_CODEC_CLOCK 22579200
+
+static int evm_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;
+	int ret = 0;
+
+	/* set codec DAI configuration */
+	ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+					 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_CBM_CFM |
+				       SND_SOC_DAIFMT_IB_NF);
+	if (ret < 0)
+		return ret;
+
+	/* set the codec system clock */
+	ret = codec_dai->dai_ops.set_sysclk(codec_dai, 0, EVM_CODEC_CLOCK,
+					    SND_SOC_CLOCK_OUT);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static struct snd_soc_ops evm_ops = {
+	.hw_params = evm_hw_params,
+};
+
+/* davinci-evm machine dapm widgets */
+static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_LINE("Line Out", NULL),
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_LINE("Line In", NULL),
+};
+
+/* davinci-evm machine audio_mapnections to the codec pins */
+static const char *audio_map[][3] = {
+	/* Headphone connected to HPLOUT, HPROUT */
+	{"Headphone Jack", NULL, "HPLOUT"},
+	{"Headphone Jack", NULL, "HPROUT"},
+
+	/* Line Out connected to LLOUT, RLOUT */
+	{"Line Out", NULL, "LLOUT"},
+	{"Line Out", NULL, "RLOUT"},
+
+	/* Mic connected to (MIC3L | MIC3R) */
+	{"MIC3L", NULL, "Mic Bias 2V"},
+	{"MIC3R", NULL, "Mic Bias 2V"},
+	{"Mic Bias 2V", NULL, "Mic Jack"},
+
+	/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
+	{"LINE1L", NULL, "Line In"},
+	{"LINE2L", NULL, "Line In"},
+	{"LINE1R", NULL, "Line In"},
+	{"LINE2R", NULL, "Line In"},
+
+	{NULL, NULL, NULL},
+};
+
+/* Logic for a aic3x as connected on a davinci-evm */
+static int evm_aic3x_init(struct snd_soc_codec *codec)
+{
+	int i;
+
+	/* Add davinci-evm specific widgets */
+	for (i = 0; i < ARRAY_SIZE(aic3x_dapm_widgets); i++)
+		snd_soc_dapm_new_control(codec, &aic3x_dapm_widgets[i]);
+
+	/* Set up davinci-evm specific audio path audio_map */
+	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]);
+
+	/* not connected */
+	snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
+	snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
+	snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);
+
+	/* always connected */
+	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1);
+	snd_soc_dapm_set_endpoint(codec, "Line Out", 1);
+	snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
+	snd_soc_dapm_set_endpoint(codec, "Line In", 1);
+
+	snd_soc_dapm_sync_endpoints(codec);
+
+	return 0;
+}
+
+/* davinci-evm digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link evm_dai = {
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai = &davinci_i2s_dai,
+	.codec_dai = &aic3x_dai,
+	.init = evm_aic3x_init,
+	.ops = &evm_ops,
+};
+
+/* davinci-evm audio machine driver */
+static struct snd_soc_machine snd_soc_machine_evm = {
+	.name = "DaVinci EVM",
+	.dai_link = &evm_dai,
+	.num_links = 1,
+};
+
+/* evm audio private data */
+static struct aic3x_setup_data evm_aic3x_setup = {
+	.i2c_address = 0x1b,
+};
+
+/* evm audio subsystem */
+static struct snd_soc_device evm_snd_devdata = {
+	.machine = &snd_soc_machine_evm,
+	.platform = &davinci_soc_platform,
+	.codec_dev = &soc_codec_dev_aic3x,
+	.codec_data = &evm_aic3x_setup,
+};
+
+static struct resource evm_snd_resources[] = {
+	{
+		.start = DAVINCI_MCBSP_BASE,
+		.end = DAVINCI_MCBSP_BASE + SZ_8K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+static struct evm_snd_platform_data evm_snd_data = {
+	.tx_dma_ch	= DM644X_DMACH_MCBSP_TX,
+	.rx_dma_ch	= DM644X_DMACH_MCBSP_RX,
+};
+
+static struct platform_device *evm_snd_device;
+
+static int __init evm_init(void)
+{
+	int ret;
+
+	evm_snd_device = platform_device_alloc("soc-audio", 0);
+	if (!evm_snd_device)
+		return -ENOMEM;
+
+	platform_set_drvdata(evm_snd_device, &evm_snd_devdata);
+	evm_snd_devdata.dev = &evm_snd_device->dev;
+	evm_snd_device->dev.platform_data = &evm_snd_data;
+
+	ret = platform_device_add_resources(evm_snd_device, evm_snd_resources,
+					    ARRAY_SIZE(evm_snd_resources));
+	if (ret) {
+		platform_device_put(evm_snd_device);
+		return ret;
+	}
+
+	ret = platform_device_add(evm_snd_device);
+	if (ret)
+		platform_device_put(evm_snd_device);
+
+	return ret;
+}
+
+static void __exit evm_exit(void)
+{
+	platform_device_unregister(evm_snd_device);
+}
+
+module_init(evm_init);
+module_exit(evm_exit);
+
+MODULE_AUTHOR("Vladimir Barinov");
+MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
+MODULE_LICENSE("GPL");