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Diffstat (limited to 'kernel/sound/soc/blackfin/bf5xx-ssm2602.c')
-rw-r--r--kernel/sound/soc/blackfin/bf5xx-ssm2602.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/kernel/sound/soc/blackfin/bf5xx-ssm2602.c b/kernel/sound/soc/blackfin/bf5xx-ssm2602.c
new file mode 100644
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+++ b/kernel/sound/soc/blackfin/bf5xx-ssm2602.c
@@ -0,0 +1,126 @@
+/*
+ * File: sound/soc/blackfin/bf5xx-ssm2602.c
+ * Author: Cliff Cai <Cliff.Cai@analog.com>
+ *
+ * Created: Tue June 06 2008
+ * Description: board driver for SSM2602 sound chip
+ *
+ * Modified:
+ * Copyright 2008 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/pcm_params.h>
+
+#include <asm/dma.h>
+#include <asm/portmux.h>
+#include <linux/gpio.h>
+#include "../codecs/ssm2602.h"
+#include "bf5xx-sport.h"
+
+static struct snd_soc_card bf5xx_ssm2602;
+
+static int bf5xx_ssm2602_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+ /*
+ * If you are using a crystal source which frequency is not 12MHz
+ * then modify the below case statement with frequency of the crystal.
+ *
+ * If you are using the SPORT to generate clocking then this is
+ * where to do it.
+ */
+ return snd_soc_dai_set_sysclk(rtd->codec_dai, SSM2602_SYSCLK, 12000000,
+ SND_SOC_CLOCK_IN);
+}
+
+/* CODEC is master for BCLK and LRC in this configuration. */
+#define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
+ SND_SOC_DAIFMT_CBM_CFM)
+
+static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = {
+ {
+ .name = "ssm2602",
+ .stream_name = "SSM2602",
+ .cpu_dai_name = "bfin-i2s.0",
+ .codec_dai_name = "ssm2602-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "ssm2602.0-001b",
+ .init = bf5xx_ssm2602_dai_init,
+ .dai_fmt = BF5XX_SSM2602_DAIFMT,
+ },
+ {
+ .name = "ssm2602",
+ .stream_name = "SSM2602",
+ .cpu_dai_name = "bfin-i2s.1",
+ .codec_dai_name = "ssm2602-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "ssm2602.0-001b",
+ .init = bf5xx_ssm2602_dai_init,
+ .dai_fmt = BF5XX_SSM2602_DAIFMT,
+ },
+};
+
+static struct snd_soc_card bf5xx_ssm2602 = {
+ .name = "bfin-ssm2602",
+ .owner = THIS_MODULE,
+ .dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM],
+ .num_links = 1,
+};
+
+static struct platform_device *bf5xx_ssm2602_snd_device;
+
+static int __init bf5xx_ssm2602_init(void)
+{
+ int ret;
+
+ pr_debug("%s enter\n", __func__);
+ bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!bf5xx_ssm2602_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602);
+ ret = platform_device_add(bf5xx_ssm2602_snd_device);
+
+ if (ret)
+ platform_device_put(bf5xx_ssm2602_snd_device);
+
+ return ret;
+}
+
+static void __exit bf5xx_ssm2602_exit(void)
+{
+ pr_debug("%s enter\n", __func__);
+ platform_device_unregister(bf5xx_ssm2602_snd_device);
+}
+
+module_init(bf5xx_ssm2602_init);
+module_exit(bf5xx_ssm2602_exit);
+
+/* Module information */
+MODULE_AUTHOR("Cliff Cai");
+MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT");
+MODULE_LICENSE("GPL");
+