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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /sound/soc/blackfin/bf5xx-ad193x.c
Initial import
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diff --git a/sound/soc/blackfin/bf5xx-ad193x.c 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/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"
+
+static struct snd_soc_card bf5xx_ad193x;
+
+static int bf5xx_ad193x_link_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, 24576000, SND_SOC_CLOCK_IN);
+ 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;
+
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+#define BF5XX_AD193X_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \
+ SND_SOC_DAIFMT_CBM_CFM)
+
+static struct snd_soc_dai_link bf5xx_ad193x_dai[] = {
+ {
+ .name = "ad193x",
+ .stream_name = "AD193X",
+ .cpu_dai_name = "bfin-i2s.0",
+ .codec_dai_name ="ad193x-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "spi0.5",
+ .dai_fmt = BF5XX_AD193X_DAIFMT,
+ .init = bf5xx_ad193x_link_init,
+ },
+ {
+ .name = "ad193x",
+ .stream_name = "AD193X",
+ .cpu_dai_name = "bfin-i2s.1",
+ .codec_dai_name ="ad193x-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "spi0.5",
+ .dai_fmt = BF5XX_AD193X_DAIFMT,
+ .init = bf5xx_ad193x_link_init,
+ },
+};
+
+static struct snd_soc_card bf5xx_ad193x = {
+ .name = "bfin-ad193x",
+ .owner = THIS_MODULE,
+ .dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM],
+ .num_links = 1,
+};
+
+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);
+ 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");
+