[PATCH 2/4] ASoC: Blackfin: Add machine driver for EVAL-ADAV80X boards

Lars-Peter Clausen
2011-06-22T21:11:23Z

Add a machine driver to support the EVAL-ADAV801 and EVAL-ADAV803 boards
connected to a Analog Devices BF5XX evaluation board.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
sound/soc/blackfin/Kconfig | 13 +++
sound/soc/blackfin/Makefile | 2 +
sound/soc/blackfin/bfin-eval-adav80x.c | 151 ++++++++++++++++++++++++++++++++
3 files changed, 166 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/blackfin/bfin-eval-adav80x.c

diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig
index fa6a6d2..fe9d548 100644
--- a/sound/soc/blackfin/Kconfig
+++ b/sound/soc/blackfin/Kconfig
@@ -27,6 +27,19 @@ config SND_SOC_BFIN_EVAL_ADAU1701
board connected to one of the Blackfin evaluation boards like the
BF5XX-STAMP or BF5XX-EZKIT.

+config SND_SOC_BFIN_EVAL_ADAV80X
+ tristate "Support for the EVAL-ADAV80X boards on Blackfin eval boards"
+ 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 the Analog Devices EVAL-ADAV801 or
+ EVAL-ADAV803 board connected to one of the Blackfin evaluation boards
+ like the BF5XX-STAMP or BF5XX-EZKIT.
+
+ Note: This driver assumes that the ADAV80X digital record and playback
+ interfaces are connected to the first SPORT port on the BF5XX board.
+
config SND_BF5XX_SOC_AD73311
tristate "SoC AD73311 Audio support for Blackfin"
depends on SND_BF5XX_I2S
diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile
index f01bff6..6018bf5 100644
--- a/sound/soc/blackfin/Makefile
+++ b/sound/soc/blackfin/Makefile
@@ -22,6 +22,7 @@ snd-ssm2602-objs := bf5xx-ssm2602.o
snd-ad73311-objs := bf5xx-ad73311.o
snd-ad193x-objs := bf5xx-ad193x.o
snd-soc-bfin-eval-adau1701-objs := bfin-eval-adau1701.o
+snd-soc-bfin-eval-adav80x-objs := bfin-eval-adav80x.o

obj-$(CONFIG_SND_BF5XX_SOC_AD1836) += snd-ad1836.o
obj-$(CONFIG_SND_BF5XX_SOC_AD1980) += snd-ad1980.o
@@ -29,3 +30,4 @@ 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_SOC_BFIN_EVAL_ADAU1701) += snd-soc-bfin-eval-adau1701.o
+obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X) += snd-soc-bfin-eval-adav80x.o
diff --git a/sound/soc/blackfin/bfin-eval-adav80x.c b/sound/soc/blackfin/bfin-eval-adav80x.c
new file mode 100644
index 0000000..3193e9e
--- /dev/null
+++ b/sound/soc/blackfin/bfin-eval-adav80x.c
@@ -0,0 +1,151 @@
+/*
+ * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin
+ * evaluation boards.
+ *
+ * Copyright 2011 Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include "../codecs/adav80x.h"
+
+static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("Line Out", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+};
+
+static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = {
+ { "Line Out", NULL, "VOUTL" },
+ { "Line Out", NULL, "VOUTR" },
+
+ { "VINL", NULL, "Line In" },
+ { "VINR", NULL, "Line In" },
+};
+
+static int bfin_eval_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 *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int ret;
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL,
+ 27000000, params_rate(params) * 256);
+
+ return ret;
+}
+
+static struct snd_soc_ops bfin_eval_adav80x_ops = {
+ .hw_params = bfin_eval_adav80x_hw_params,
+};
+
+static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = {
+ {
+ .name = "adav80x",
+ .stream_name = "ADAV80x HiFi",
+ .cpu_dai_name = "bfin-i2s.0",
+ .codec_dai_name = "adav80x-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .ops = &bfin_eval_adav80x_ops,
+ },
+};
+
+static struct snd_soc_card bfin_eval_adav80x = {
+ .name = "bfin-eval-adav80x",
+ .dai_link = bfin_eval_adav80x_dais,
+ .num_links = ARRAY_SIZE(bfin_eval_adav80x_dais),
+
+ .dapm_widgets = bfin_eval_adav80x_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets),
+ .dapm_routes = bfin_eval_adav80x_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes),
+};
+
+enum bfin_eval_adav80x_type {
+ BFIN_EVAL_ADAV801,
+ BFIN_EVAL_ADAV803,
+};
+
+static int bfin_eval_adav80x_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &bfin_eval_adav80x;
+ const char *codec_name;
+
+ switch (platform_get_device_id(pdev)->driver_data) {
+ case BFIN_EVAL_ADAV801:
+ codec_name = "spi0.1";
+ break;
+ case BFIN_EVAL_ADAV803:
+ codec_name = "adav803.0-0034";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ bfin_eval_adav80x_dais[0].codec_name = codec_name;
+
+ card->dev = &pdev->dev;
+
+ return snd_soc_register_card(&bfin_eval_adav80x);
+}
+
+static int __devexit bfin_eval_adav80x_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+
+ return 0;
+}
+
+static const struct platform_device_id bfin_eval_adav80x_ids[] = {
+ { "bfin-eval-adav801", BFIN_EVAL_ADAV801 },
+ { "bfin-eval-adav803", BFIN_EVAL_ADAV803 },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids);
+
+static struct platform_driver bfin_eval_adav80x_driver = {
+ .driver = {
+ .name = "bfin-eval-adav80x",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bfin_eval_adav80x_probe,
+ .remove = __devexit_p(bfin_eval_adav80x_remove),
+ .id_table = bfin_eval_adav80x_ids,
+};
+
+static int __init bfin_eval_adav80x_init(void)
+{
+ return platform_driver_register(&bfin_eval_adav80x_driver);
+}
+module_init(bfin_eval_adav80x_init);
+
+static void __exit bfin_eval_adav80x_exit(void)
+{
+ platform_driver_unregister(&bfin_eval_adav80x_driver);
+}
+module_exit(bfin_eval_adav80x_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver");
+MODULE_LICENSE("GPL");
--
1.7.2.5