[alsa-devel] [PATCH 2/2] ASoC: Blackfin: new machine driver for ADAV801/ADAV803 codecs
Mike Frysinger
vapier at gentoo.org
Sat Aug 7 17:27:44 CEST 2010
From: Yi Li <yi.li at analog.com>
Signed-off-by: Yi Li <yi.li at analog.com>
Signed-off-by: Cliff Cai <cliff.cai at analog.com>
Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
sound/soc/blackfin/Kconfig | 8 ++
sound/soc/blackfin/Makefile | 2 +
sound/soc/blackfin/bf5xx-adav80x.c | 154 ++++++++++++++++++++++++++++++++++++
3 files changed, 164 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/blackfin/bf5xx-adav80x.c
diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig
index 8ef2502..75bbc90 100644
--- a/sound/soc/blackfin/Kconfig
+++ b/sound/soc/blackfin/Kconfig
@@ -32,6 +32,14 @@ config SND_BFIN_AD73311_SE
Enter the GPIO used to control AD73311's SE pin. Acceptable
values are 0 to 7
+config SND_BF5XX_SOC_ADAV80X
+ tristate "SoC ADAV801/3 Audio support"
+ depends on SND_BF5XX_I2S && (SPI_MASTER || I2C)
+ select SND_BF5XX_SOC_I2S
+ select SND_SOC_ADAV80X
+ help
+ Say Y if you want to add support for ADAV80X SoC audio.
+
config SND_BF5XX_TDM
tristate "SoC I2S(TDM mode) Audio for the ADI BF5xx chip"
depends on (BLACKFIN && SND_SOC)
diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile
index 49af3f3..872dac8 100644
--- a/sound/soc/blackfin/Makefile
+++ b/sound/soc/blackfin/Makefile
@@ -21,9 +21,11 @@ snd-ad1980-objs := bf5xx-ad1980.o
snd-ssm2602-objs := bf5xx-ssm2602.o
snd-ad73311-objs := bf5xx-ad73311.o
snd-ad193x-objs := bf5xx-ad193x.o
+snd-adav80x-objs := bf5xx-adav80x.o
obj-$(CONFIG_SND_BF5XX_SOC_AD1836) += snd-ad1836.o
obj-$(CONFIG_SND_BF5XX_SOC_AD1980) += snd-ad1980.o
obj-$(CONFIG_SND_BF5XX_SOC_SSM2602) += snd-ssm2602.o
obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o
obj-$(CONFIG_SND_BF5XX_SOC_AD193X) += snd-ad193x.o
+obj-$(CONFIG_SND_BF5XX_SOC_ADAV80X) += snd-adav80x.o
diff --git a/sound/soc/blackfin/bf5xx-adav80x.c b/sound/soc/blackfin/bf5xx-adav80x.c
new file mode 100644
index 0000000..720a885
--- /dev/null
+++ b/sound/soc/blackfin/bf5xx-adav80x.c
@@ -0,0 +1,154 @@
+/*
+ * File: sound/soc/blackfin/bf5xx-adav80x.c
+ * Author: Yi Li <yi.li at analog.com>
+ *
+ * Created: Tue June 06 2010
+ * Description: board driver for ADAV80X sound chip
+ *
+ * Modified:
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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.
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm_params.h>
+
+#include <asm/dma.h>
+#include <asm/portmux.h>
+#include <linux/gpio.h>
+#include "../codecs/adav80x.h"
+#include "bf5xx-sport.h"
+#include "bf5xx-i2s-pcm.h"
+#include "bf5xx-i2s.h"
+
+static struct snd_soc_card bf5xx_adav80x;
+
+static int bf5xx_adav80x_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->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int clk = 0;
+ int ret = 0;
+
+ pr_debug("%s rate %d format %x\n", __func__, params_rate(params),
+ params_format(params));
+
+ switch (params_rate(params)) {
+ case 32000:
+ case 44100:
+ case 48000:
+ case 96000:
+ clk = params_rate(params);
+ break;
+ }
+
+ /*
+ * CODEC is master for BCLK and LRC in this configuration.
+ */
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_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 = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* For the ADAV80X evaluation board, use the on board crystal
+ as XIN, and use XIN as source for PLL1 */
+ ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_CLK_PLL1,
+ ADAV80X_CLK_XIN, 27000000, clk);
+
+ /* If you want to use XIN as clock source */
+ /* ret = snd_soc_dai_set_pll(codec_dai, 0, ADAV80X_CLK_XIN,
+ 27000000, 0); */
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static struct snd_soc_ops bf5xx_adav80x_ops = {
+ .hw_params = bf5xx_adav80x_hw_params,
+};
+
+static struct snd_soc_dai_link bf5xx_adav80x_dai = {
+ .name = "adav80x",
+ .stream_name = "ADAV80X",
+ .cpu_dai = &bf5xx_i2s_dai,
+ .codec_dai = &adav80x_dai,
+ .ops = &bf5xx_adav80x_ops,
+};
+
+static struct snd_soc_card bf5xx_adav80x = {
+ .name = "bf5xx_adav80x",
+ .platform = &bf5xx_i2s_soc_platform,
+ .dai_link = &bf5xx_adav80x_dai,
+ .num_links = 1,
+};
+
+static struct snd_soc_device bf5xx_adav80x_snd_devdata = {
+ .card = &bf5xx_adav80x,
+ .codec_dev = &soc_codec_dev_adav80x,
+};
+
+static struct platform_device *bf5xx_adav80x_snd_device;
+
+static int __init bf5xx_adav80x_init(void)
+{
+ int ret;
+
+ bf5xx_adav80x_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!bf5xx_adav80x_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(bf5xx_adav80x_snd_device,
+ &bf5xx_adav80x_snd_devdata);
+ bf5xx_adav80x_snd_devdata.dev = &bf5xx_adav80x_snd_device->dev;
+ ret = platform_device_add(bf5xx_adav80x_snd_device);
+
+ if (ret)
+ platform_device_put(bf5xx_adav80x_snd_device);
+
+ return ret;
+}
+
+static void __exit bf5xx_adav80x_exit(void)
+{
+ platform_device_unregister(bf5xx_adav80x_snd_device);
+}
+
+module_init(bf5xx_adav80x_init);
+module_exit(bf5xx_adav80x_exit);
+
+/* Module information */
+MODULE_AUTHOR("Yi Li");
+MODULE_DESCRIPTION("ALSA SoC ADAV80X Blackfin Board");
+MODULE_LICENSE("GPL");
--
1.7.2
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