1 files changed, 335 insertions, 0 deletions
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
new file mode 100644
index 00000000..fe798422
--- /dev/null
+++ b/sound/soc/davinci/davinci-evm.c
@@ -0,0 +1,335 @@
+/*
+ * ASoC driver for TI DAVINCI EVM platform
+ *
+ * Author:      Vladimir Barinov, <vbarinov@embeddedalley.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 <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/dma.h>
+#include <asm/mach-types.h>
+
+#include <mach/asp.h>
+#include <mach/edma.h>
+#include <mach/mux.h>
+
+#include "davinci-pcm.h"
+#include "davinci-i2s.h"
+#include "davinci-mcasp.h"
+
+#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
+		SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
+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_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	int ret = 0;
+	unsigned sysclk;
+
+	/* ASP1 on DM355 EVM is clocked by an external oscillator */
+	if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
+	    machine_is_davinci_dm365_evm())
+		sysclk = 27000000;
+
+	/* ASP0 in DM6446 EVM is clocked by U55, as configured by
+	 * board-dm644x-evm.c using GPIOs from U18.  There are six
+	 * options; here we "know" we use a 48 KHz sample rate.
+	 */
+	else if (machine_is_davinci_evm())
+		sysclk = 12288000;
+
+	else if (machine_is_davinci_da830_evm() ||
+				machine_is_davinci_da850_evm())
+		sysclk = 24576000;
+
+	else
+		return -EINVAL;
+
+	/* set codec DAI configuration */
+	ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
+	if (ret < 0)
+		return ret;
+
+	/* set cpu DAI configuration */
+	ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
+	if (ret < 0)
+		return ret;
+
+	/* set the codec system clock */
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int evm_spdif_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 *cpu_dai = rtd->cpu_dai;
+
+	/* set cpu DAI configuration */
+	return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
+}
+
+static struct snd_soc_ops evm_ops = {
+	.hw_params = evm_hw_params,
+};
+
+static struct snd_soc_ops evm_spdif_ops = {
+	.hw_params = evm_spdif_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 struct snd_soc_dapm_route audio_map[] = {
+	/* 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"},
+};
+
+/* Logic for a aic3x as connected on a davinci-evm */
+static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+	/* Add davinci-evm specific widgets */
+	snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
+				  ARRAY_SIZE(aic3x_dapm_widgets));
+
+	/* Set up davinci-evm specific audio path audio_map */
+	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+
+	/* not connected */
+	snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
+	snd_soc_dapm_disable_pin(dapm, "HPLCOM");
+	snd_soc_dapm_disable_pin(dapm, "HPRCOM");
+
+	/* always connected */
+	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+	snd_soc_dapm_enable_pin(dapm, "Line Out");
+	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
+	snd_soc_dapm_enable_pin(dapm, "Line In");
+
+	snd_soc_dapm_sync(dapm);
+
+	return 0;
+}
+
+/* davinci-evm digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link dm6446_evm_dai = {
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai_name = "davinci-mcbsp",
+	.codec_dai_name = "tlv320aic3x-hifi",
+	.codec_name = "tlv320aic3x-codec.1-001b",
+	.platform_name = "davinci-pcm-audio",
+	.init = evm_aic3x_init,
+	.ops = &evm_ops,
+};
+
+static struct snd_soc_dai_link dm355_evm_dai = {
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai_name = "davinci-mcbsp.1",
+	.codec_dai_name = "tlv320aic3x-hifi",
+	.codec_name = "tlv320aic3x-codec.1-001b",
+	.platform_name = "davinci-pcm-audio",
+	.init = evm_aic3x_init,
+	.ops = &evm_ops,
+};
+
+static struct snd_soc_dai_link dm365_evm_dai = {
+#ifdef CONFIG_SND_DM365_AIC3X_CODEC
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai_name = "davinci-mcbsp",
+	.codec_dai_name = "tlv320aic3x-hifi",
+	.init = evm_aic3x_init,
+	.codec_name = "tlv320aic3x-codec.1-0018",
+	.ops = &evm_ops,
+#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
+	.name = "Voice Codec - CQ93VC",
+	.stream_name = "CQ93",
+	.cpu_dai_name = "davinci-vcif",
+	.codec_dai_name = "cq93vc-hifi",
+	.codec_name = "cq93vc-codec",
+#endif
+	.platform_name = "davinci-pcm-audio",
+};
+
+static struct snd_soc_dai_link dm6467_evm_dai[] = {
+	{
+		.name = "TLV320AIC3X",
+		.stream_name = "AIC3X",
+		.cpu_dai_name= "davinci-mcasp.0",
+		.codec_dai_name = "tlv320aic3x-hifi",
+		.platform_name ="davinci-pcm-audio",
+		.codec_name = "tlv320aic3x-codec.0-001a",
+		.init = evm_aic3x_init,
+		.ops = &evm_ops,
+	},
+	{
+		.name = "McASP",
+		.stream_name = "spdif",
+		.cpu_dai_name= "davinci-mcasp.1",
+		.codec_dai_name = "dit-hifi",
+		.codec_name = "spdif_dit",
+		.platform_name = "davinci-pcm-audio",
+		.ops = &evm_spdif_ops,
+	},
+};
+
+static struct snd_soc_dai_link da830_evm_dai = {
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai_name = "davinci-mcasp.1",
+	.codec_dai_name = "tlv320aic3x-hifi",
+	.codec_name = "tlv320aic3x-codec.1-0018",
+	.platform_name = "davinci-pcm-audio",
+	.init = evm_aic3x_init,
+	.ops = &evm_ops,
+};
+
+static struct snd_soc_dai_link da850_evm_dai = {
+	.name = "TLV320AIC3X",
+	.stream_name = "AIC3X",
+	.cpu_dai_name= "davinci-mcasp.0",
+	.codec_dai_name = "tlv320aic3x-hifi",
+	.codec_name = "tlv320aic3x-codec.1-0018",
+	.platform_name = "davinci-pcm-audio",
+	.init = evm_aic3x_init,
+	.ops = &evm_ops,
+};
+
+/* davinci dm6446 evm audio machine driver */
+static struct snd_soc_card dm6446_snd_soc_card_evm = {
+	.name = "DaVinci DM6446 EVM",
+	.dai_link = &dm6446_evm_dai,
+	.num_links = 1,
+};
+
+/* davinci dm355 evm audio machine driver */
+static struct snd_soc_card dm355_snd_soc_card_evm = {
+	.name = "DaVinci DM355 EVM",
+	.dai_link = &dm355_evm_dai,
+	.num_links = 1,
+};
+
+/* davinci dm365 evm audio machine driver */
+static struct snd_soc_card dm365_snd_soc_card_evm = {
+	.name = "DaVinci DM365 EVM",
+	.dai_link = &dm365_evm_dai,
+	.num_links = 1,
+};
+
+/* davinci dm6467 evm audio machine driver */
+static struct snd_soc_card dm6467_snd_soc_card_evm = {
+	.name = "DaVinci DM6467 EVM",
+	.dai_link = dm6467_evm_dai,
+	.num_links = ARRAY_SIZE(dm6467_evm_dai),
+};
+
+static struct snd_soc_card da830_snd_soc_card = {
+	.name = "DA830/OMAP-L137 EVM",
+	.dai_link = &da830_evm_dai,
+	.num_links = 1,
+};
+
+static struct snd_soc_card da850_snd_soc_card = {
+	.name = "DA850/OMAP-L138 EVM",
+	.dai_link = &da850_evm_dai,
+	.num_links = 1,
+};
+
+static struct platform_device *evm_snd_device;
+
+static int __init evm_init(void)
+{
+	struct snd_soc_card *evm_snd_dev_data;
+	int index;
+	int ret;
+
+	if (machine_is_davinci_evm()) {
+		evm_snd_dev_data = &dm6446_snd_soc_card_evm;
+		index = 0;
+	} else if (machine_is_davinci_dm355_evm()) {
+		evm_snd_dev_data = &dm355_snd_soc_card_evm;
+		index = 1;
+	} else if (machine_is_davinci_dm365_evm()) {
+		evm_snd_dev_data = &dm365_snd_soc_card_evm;
+		index = 0;
+	} else if (machine_is_davinci_dm6467_evm()) {
+		evm_snd_dev_data = &dm6467_snd_soc_card_evm;
+		index = 0;
+	} else if (machine_is_davinci_da830_evm()) {
+		evm_snd_dev_data = &da830_snd_soc_card;
+		index = 1;
+	} else if (machine_is_davinci_da850_evm()) {
+		evm_snd_dev_data = &da850_snd_soc_card;
+		index = 0;
+	} else
+		return -EINVAL;
+
+	evm_snd_device = platform_device_alloc("soc-audio", index);
+	if (!evm_snd_device)
+		return -ENOMEM;
+
+	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
+	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");