summaryrefslogtreecommitdiffstats
path: root/kernel/sound/soc/blackfin/bf5xx-ad1836.c
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/soc/blackfin/bf5xx-ad1836.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/soc/blackfin/bf5xx-ad1836.c')
-rw-r--r--kernel/sound/soc/blackfin/bf5xx-ad1836.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/kernel/sound/soc/blackfin/bf5xx-ad1836.c b/kernel/sound/soc/blackfin/bf5xx-ad1836.c
new file mode 100644
index 000000000..5bf1501e5
--- /dev/null
+++ b/kernel/sound/soc/blackfin/bf5xx-ad1836.c
@@ -0,0 +1,118 @@
+/*
+ * File: sound/soc/blackfin/bf5xx-ad1836.c
+ * Author: Barry Song <Barry.Song@analog.com>
+ *
+ * Created: Aug 4 2009
+ * Description: Board driver for ad1836 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.
+ *
+ */
+
+#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/ad1836.h"
+
+static struct snd_soc_card bf5xx_ad1836;
+
+static int bf5xx_ad1836_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
+ int ret = 0;
+
+ /* 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;
+
+ ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xFF, 0xFF, 8, 32);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+#define BF5XX_AD1836_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \
+ SND_SOC_DAIFMT_CBM_CFM)
+
+static struct snd_soc_dai_link bf5xx_ad1836_dai = {
+ .name = "ad1836",
+ .stream_name = "AD1836",
+ .codec_dai_name = "ad1836-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .dai_fmt = BF5XX_AD1836_DAIFMT,
+ .init = bf5xx_ad1836_init,
+};
+
+static struct snd_soc_card bf5xx_ad1836 = {
+ .name = "bfin-ad1836",
+ .owner = THIS_MODULE,
+ .dai_link = &bf5xx_ad1836_dai,
+ .num_links = 1,
+};
+
+static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &bf5xx_ad1836;
+ const char **link_name;
+ int ret;
+
+ link_name = pdev->dev.platform_data;
+ if (!link_name) {
+ dev_err(&pdev->dev, "No platform data supplied\n");
+ return -EINVAL;
+ }
+ bf5xx_ad1836_dai.cpu_dai_name = link_name[0];
+ bf5xx_ad1836_dai.codec_name = link_name[1];
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+
+ ret = snd_soc_register_card(card);
+ if (ret)
+ dev_err(&pdev->dev, "Failed to register card\n");
+ return ret;
+}
+
+static int bf5xx_ad1836_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ return 0;
+}
+
+static struct platform_driver bf5xx_ad1836_driver = {
+ .driver = {
+ .name = "bfin-snd-ad1836",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bf5xx_ad1836_driver_probe,
+ .remove = bf5xx_ad1836_driver_remove,
+};
+module_platform_driver(bf5xx_ad1836_driver);
+
+/* Module information */
+MODULE_AUTHOR("Barry Song");
+MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
+MODULE_LICENSE("GPL");
+