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-rw-r--r--sound/soc/blackfin/bf5xx-ad193x.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/sound/soc/blackfin/bf5xx-ad193x.c b/sound/soc/blackfin/bf5xx-ad193x.c
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+++ b/sound/soc/blackfin/bf5xx-ad193x.c
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+/*
+ * File: sound/soc/blackfin/bf5xx-ad193x.c
+ * Author: Barry Song <Barry.Song@analog.com>
+ *
+ * Created: Thur June 4 2009
+ * Description: Board driver for ad193x sound chip
+ *
+ * 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/blackfin.h>
+#include <asm/cacheflush.h>
+#include <asm/irq.h>
+#include <asm/dma.h>
+#include <asm/portmux.h>
+
+#include "../codecs/ad193x.h"
+#include "bf5xx-sport.h"
+
+#include "bf5xx-tdm-pcm.h"
+#include "bf5xx-tdm.h"
+
+static struct snd_soc_card bf5xx_ad193x;
+
+static int bf5xx_ad193x_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+
+ cpu_dai->private_data = sport_handle;
+ return 0;
+}
+
+static int bf5xx_ad193x_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->dai->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+ unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7};
+ int ret = 0;
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
+ SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
+ SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set codec DAI slots, 8 channels, all channels are enabled */
+ ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI channel mapping */
+ ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
+ channel_map, ARRAY_SIZE(channel_map), channel_map);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops bf5xx_ad193x_ops = {
+ .startup = bf5xx_ad193x_startup,
+ .hw_params = bf5xx_ad193x_hw_params,
+};
+
+static struct snd_soc_dai_link bf5xx_ad193x_dai = {
+ .name = "ad193x",
+ .stream_name = "AD193X",
+ .cpu_dai = &bf5xx_tdm_dai,
+ .codec_dai = &ad193x_dai,
+ .ops = &bf5xx_ad193x_ops,
+};
+
+static struct snd_soc_card bf5xx_ad193x = {
+ .name = "bf5xx_ad193x",
+ .platform = &bf5xx_tdm_soc_platform,
+ .dai_link = &bf5xx_ad193x_dai,
+ .num_links = 1,
+};
+
+static struct snd_soc_device bf5xx_ad193x_snd_devdata = {
+ .card = &bf5xx_ad193x,
+ .codec_dev = &soc_codec_dev_ad193x,
+};
+
+static struct platform_device *bfxx_ad193x_snd_device;
+
+static int __init bf5xx_ad193x_init(void)
+{
+ int ret;
+
+ bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!bfxx_ad193x_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x_snd_devdata);
+ bf5xx_ad193x_snd_devdata.dev = &bfxx_ad193x_snd_device->dev;
+ ret = platform_device_add(bfxx_ad193x_snd_device);
+
+ if (ret)
+ platform_device_put(bfxx_ad193x_snd_device);
+
+ return ret;
+}
+
+static void __exit bf5xx_ad193x_exit(void)
+{
+ platform_device_unregister(bfxx_ad193x_snd_device);
+}
+
+module_init(bf5xx_ad193x_init);
+module_exit(bf5xx_ad193x_exit);
+
+/* Module information */
+MODULE_AUTHOR("Barry Song");
+MODULE_DESCRIPTION("ALSA SoC AD193X board driver");
+MODULE_LICENSE("GPL");
+