[alsa-devel] [PATCH 5/5] ASoC: Blackfin: ADAU1X81 eval board support
Lars-Peter Clausen
lars at metafoo.de
Tue May 27 10:53:21 CEST 2014
This patch adds a ASoC machine driver to support the EVAL-ADAU1X81 board
connected to a Analog Devices BF5XX evaluation board.
Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
sound/soc/blackfin/Kconfig | 13 ++++
sound/soc/blackfin/Makefile | 2 +
sound/soc/blackfin/bfin-eval-adau1x81.c | 130 ++++++++++++++++++++++++++++++++
3 files changed, 145 insertions(+)
create mode 100644 sound/soc/blackfin/bfin-eval-adau1x81.c
diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig
index 8c3a87b..6410aa2 100644
--- a/sound/soc/blackfin/Kconfig
+++ b/sound/soc/blackfin/Kconfig
@@ -56,6 +56,19 @@ config SND_SOC_BFIN_EVAL_ADAU1X61
Note: This driver assumes that the ADAU1X61 is connected to the
first SPORT port on the BF5XX board.
+config SND_SOC_BFIN_EVAL_ADAU1X81
+ tristate "Support for the EVAL-ADAU1X81 boards on Blackfin eval boards"
+ depends on SND_BF5XX_I2S && I2C
+ select SND_BF5XX_SOC_I2S
+ select SND_SOC_ADAU1781_I2C
+ help
+ Say Y if you want to add support for the Analog Devices EVAL-ADAU1X81
+ board connected to one of the Blackfin evaluation boards like the
+ BF5XX-STAMP or BF5XX-EZKIT.
+
+ Note: This driver assumes that the ADAU1X81 is connected to the
+ first SPORT port on the BF5XX board.
+
config SND_SOC_BFIN_EVAL_ADAV80X
tristate "Support for the EVAL-ADAV80X boards on Blackfin eval boards"
depends on SND_BF5XX_I2S && SND_SOC_I2C_AND_SPI
diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile
index 91eb0e7..f21e948 100644
--- a/sound/soc/blackfin/Makefile
+++ b/sound/soc/blackfin/Makefile
@@ -23,6 +23,7 @@ snd-ad73311-objs := bf5xx-ad73311.o
snd-ad193x-objs := bf5xx-ad193x.o
snd-soc-bfin-eval-adau1373-objs := bfin-eval-adau1373.o
snd-soc-bfin-eval-adau1x61-objs := bfin-eval-adau1x61.o
+snd-soc-bfin-eval-adau1x81-objs := bfin-eval-adau1x81.o
snd-soc-bfin-eval-adau1701-objs := bfin-eval-adau1701.o
snd-soc-bfin-eval-adav80x-objs := bfin-eval-adav80x.o
@@ -33,5 +34,6 @@ obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o
obj-$(CONFIG_SND_BF5XX_SOC_AD193X) += snd-ad193x.o
obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373) += snd-soc-bfin-eval-adau1373.o
obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61) += snd-soc-bfin-eval-adau1x61.o
+obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X81) += snd-soc-bfin-eval-adau1x81.o
obj-$(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-adau1x81.c b/sound/soc/blackfin/bfin-eval-adau1x81.c
new file mode 100644
index 0000000..5c380f6
--- /dev/null
+++ b/sound/soc/blackfin/bfin-eval-adau1x81.c
@@ -0,0 +1,130 @@
+/*
+ * Machine driver for EVAL-ADAU1x81 on Analog Devices bfin
+ * evaluation boards.
+ *
+ * Copyright 2011-2014 Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars at metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include "../codecs/adau17x1.h"
+
+static const struct snd_soc_dapm_widget bfin_eval_adau1x81_dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("Stereo In", NULL),
+ SND_SOC_DAPM_LINE("Beep", NULL),
+
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_HP("Headphone", NULL),
+};
+
+static const struct snd_soc_dapm_route bfin_eval_adau1x81_dapm_routes[] = {
+ { "BEEP", NULL, "Beep" },
+ { "LMIC", NULL, "Stereo In" },
+ { "LMIC", NULL, "Stereo In" },
+
+ { "Headphone", NULL, "AOUTL" },
+ { "Headphone", NULL, "AOUTR" },
+ { "Speaker", NULL, "SP" },
+};
+
+static int bfin_eval_adau1x81_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 *codec_dai = rtd->codec_dai;
+ int pll_rate;
+ int ret;
+
+ switch (params_rate(params)) {
+ case 48000:
+ case 8000:
+ case 12000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 96000:
+ pll_rate = 48000 * 1024;
+ break;
+ case 44100:
+ case 7350:
+ case 11025:
+ case 14700:
+ case 22050:
+ case 29400:
+ case 88200:
+ pll_rate = 44100 * 1024;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL,
+ ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate,
+ SND_SOC_CLOCK_IN);
+
+ return ret;
+}
+
+static const struct snd_soc_ops bfin_eval_adau1x81_ops = {
+ .hw_params = bfin_eval_adau1x81_hw_params,
+};
+
+static struct snd_soc_dai_link bfin_eval_adau1x81_dai = {
+ .name = "adau1x81",
+ .stream_name = "adau1x81",
+ .cpu_dai_name = "bfin-i2s.0",
+ .codec_dai_name = "adau-hifi",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "adau1781.0-0038",
+ .ops = &bfin_eval_adau1x81_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+};
+
+static struct snd_soc_card bfin_eval_adau1x81 = {
+ .name = "bfin-eval-adau1x81",
+ .driver_name = "eval-adau1x81",
+ .dai_link = &bfin_eval_adau1x81_dai,
+ .num_links = 1,
+
+ .dapm_widgets = bfin_eval_adau1x81_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x81_dapm_widgets),
+ .dapm_routes = bfin_eval_adau1x81_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x81_dapm_routes),
+ .fully_routed = true,
+};
+
+static int bfin_eval_adau1x81_probe(struct platform_device *pdev)
+{
+ bfin_eval_adau1x81.dev = &pdev->dev;
+
+ return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1x81);
+}
+
+static struct platform_driver bfin_eval_adau1x81_driver = {
+ .driver = {
+ .name = "bfin-eval-adau1x81",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bfin_eval_adau1x81_probe,
+};
+module_platform_driver(bfin_eval_adau1x81_driver);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars at metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC bfin adau1x81 driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:bfin-eval-adau1x81");
--
1.8.0
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