[alsa-devel] [PATCH] Add Amesom ASoC machine support.
Mark Brown
broonie at opensource.wolfsonmicro.com
Tue Nov 20 10:25:42 CET 2007
From: Liam Girdwood <liam at localhost.localdomain>
Signed-off-by: Nicola Perrino <nicola.perrino at atlab.it>
Signed-off-by: Liam Girdwood <lg at opensource.wolfsonmicro.com>
---
sound/soc/pxa/Kconfig | 10 ++
sound/soc/pxa/Makefile | 3 +-
sound/soc/pxa/amesom_tlv320.c | 211 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 223 insertions(+), 1 deletions(-)
create mode 100644 sound/soc/pxa/amesom_tlv320.c
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index ca825e6..bcb3aa0 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -57,3 +57,13 @@ config SND_PXA2XX_SOC_TOSA
help
Say Y if you want to add support for SoC audio on Sharp
Zaurus SL-C6000x models (Tosa).
+
+config SND_PXA2XX_SOC_AMESOM_TLV320
+ tristate "SoC SSP Audio support for AMESOM - TLV320AIC24k"
+ depends on SND_PXA2XX_SOC && MACH_AMESOM
+ select SND_PXA2XX_SOC_I2S
+ select SND_PXA2XX_SOC_SSP
+ select SND_SOC_TLV320
+ help
+ Say Y if you want to add support for SoC audio on Amesom
+ with the tlv320.
diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile
index c631651..931bdc7 100644
--- a/sound/soc/pxa/Makefile
+++ b/sound/soc/pxa/Makefile
@@ -14,9 +14,10 @@ snd-soc-corgi-objs := corgi.o
snd-soc-poodle-objs := poodle.o
snd-soc-tosa-objs := tosa.o
snd-soc-spitz-objs := spitz.o
+snd-soc-amesom-tlv320-objs := amesom_tlv320.o
obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
obj-$(CONFIG_SND_PXA2XX_SOC_TOSA) += snd-soc-tosa.o
obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
-
+obj-$(CONFIG_SND_PXA2XX_SOC_AMESOM_TLV320) += snd-soc-amesom-tlv320.o
diff --git a/sound/soc/pxa/amesom_tlv320.c b/sound/soc/pxa/amesom_tlv320.c
new file mode 100644
index 0000000..6aa1c2c
--- /dev/null
+++ b/sound/soc/pxa/amesom_tlv320.c
@@ -0,0 +1,211 @@
+/*
+ * amesom_tlv320.c -- SoC audio for Amesom
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2006 Atlab srl.
+ *
+ * Authors: Liam Girdwood <liam.girdwood at wolfsonmicro.com>
+ * Nicola Perrino <nicola.perrino at atlab.it>
+ *
+ * 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
+ * 5th Dec 2006 Initial version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/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/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/audio.h>
+
+#include "../codecs/tlv320.h"
+#include "pxa2xx-pcm.h"
+#include "pxa2xx-i2s.h"
+#include "pxa2xx-ssp.h"
+
+
+/*
+ * SSP2 GPIO's
+ */
+
+#define GPIO11_SSP2RX_MD (11 | GPIO_ALT_FN_2_IN)
+#define GPIO13_SSP2TX_MD (13 | GPIO_ALT_FN_1_OUT)
+#define GPIO50_SSP2CLKS_MD (50 | GPIO_ALT_FN_3_IN)
+#define GPIO14_SSP2FRMS_MD (14 | GPIO_ALT_FN_2_IN)
+#define GPIO50_SSP2CLKM_MD (50 | GPIO_ALT_FN_3_OUT)
+#define GPIO14_SSP2FRMM_MD (14 | GPIO_ALT_FN_2_OUT)
+
+
+static struct snd_soc_machine amesom;
+
+
+static int amesom_probe(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int amesom_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int tlv320_voice_startup(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static void tlv320_voice_shutdown(struct snd_pcm_substream *substream)
+{
+ return;
+}
+
+/*
+ * Tlv320 uses SSP port for playback.
+ */
+static int tlv320_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;
+ struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
+ int ret = 0;
+
+ //printk("tlv320_voice_hw_params enter\n");
+ switch(params_rate(params)) {
+ case 8000:
+ //printk("tlv320_voice_hw_params 8000\n");
+ break;
+ case 16000:
+ //printk("tlv320_voice_hw_params 16000\n");
+ break;
+ default:
+ break;
+ }
+
+ // CODEC MASTER, SSP SLAVE
+
+ /* set codec DAI configuration */
+ ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
+ 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_MSB |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the SSP system clock as input (unused) */
+ ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_SSP_CLK_NET_PLL, 0,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set SSP slots */
+ //ret = cpu_dai->dai_ops.set_tdm_slot(cpu_dai, 0x1, slots);
+ ret = cpu_dai->dai_ops.set_tdm_slot(cpu_dai, 0x3, 1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int tlv320_voice_hw_free(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static struct snd_soc_ops tlv320_voice_ops = {
+ .startup = tlv320_voice_startup,
+ .shutdown = tlv320_voice_shutdown,
+ .hw_params = tlv320_voice_hw_params,
+ .hw_free = tlv320_voice_hw_free,
+};
+
+
+static struct snd_soc_dai_link amesom_dai[] = {
+{
+ .name = "TLV320",
+ .stream_name = "TLV320 Voice",
+ .cpu_dai = &pxa_ssp_dai[PXA2XX_DAI_SSP2],
+ .codec_dai = &tlv320_dai[TLV320_DAI_MODE1_VOICE],
+ .ops = &tlv320_voice_ops,
+},
+};
+
+static struct snd_soc_machine amesom = {
+ .name = "Amesom",
+ .probe = amesom_probe,
+ .remove = amesom_remove,
+ .dai_link = amesom_dai,
+ .num_links = ARRAY_SIZE(amesom_dai),
+};
+
+static struct tlv320_setup_data amesom_tlv320_setup = {
+#ifdef TLV320AIC24K //codec2
+ .i2c_address = 0x41,
+#else // TLV320AIC14k
+ .i2c_address = 0x40,
+#endif
+};
+
+static struct snd_soc_device amesom_snd_devdata = {
+ .machine = &amesom,
+ .platform = &pxa2xx_soc_platform,
+ .codec_dev = &soc_codec_dev_tlv320,
+ .codec_data = &amesom_tlv320_setup,
+};
+
+static struct platform_device *amesom_snd_device;
+
+static int __init amesom_init(void)
+{
+ int ret;
+
+ amesom_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!amesom_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(amesom_snd_device, &amesom_snd_devdata);
+ amesom_snd_devdata.dev = &amesom_snd_device->dev;
+ ret = platform_device_add(amesom_snd_device);
+
+ if (ret)
+ platform_device_put(amesom_snd_device);
+
+
+ /* SSP port 2 slave */
+ pxa_gpio_mode(GPIO11_SSP2RX_MD);
+ pxa_gpio_mode(GPIO13_SSP2TX_MD);
+ pxa_gpio_mode(GPIO50_SSP2CLKS_MD);
+ pxa_gpio_mode(GPIO14_SSP2FRMS_MD);
+
+ return ret;
+}
+
+static void __exit amesom_exit(void)
+{
+ platform_device_unregister(amesom_snd_device);
+}
+
+module_init(amesom_init);
+module_exit(amesom_exit);
+
+/* Module information */
+MODULE_AUTHOR("Nicola Perrino");
+MODULE_DESCRIPTION("ALSA SoC TLV320 Amesom");
+MODULE_LICENSE("GPL");
--
1.5.3.5
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