[alsa-devel] [PATCH] ASoC: bells: Add machine driver for Wolfson Bells boards
Mark Brown
broonie at opensource.wolfsonmicro.com
Thu Aug 9 20:32:59 CEST 2012
The Wolfson Bells board takes submodules for various audio functions but
since the system integrations are virtually identical for most of them we
can support the overwhemling majority from the same machine driver.
Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
sound/soc/samsung/Kconfig | 8 +
sound/soc/samsung/Makefile | 2 +
sound/soc/samsung/bells.c | 346 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 356 insertions(+)
create mode 100644 sound/soc/samsung/bells.c
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index fe3995c..fb56000 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -199,6 +199,14 @@ config SND_SOC_TOBERMORY
select SND_SAMSUNG_I2S
select SND_SOC_WM8962
+config SND_SOC_BELLS
+ tristate "Audio support for Wolfson Bells"
+ depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410
+ select SND_SAMSUNG_I2S
+ select SND_SOC_WM5102
+ select SND_SOC_WM5110
+ select SND_SOC_WM9081
+
config SND_SOC_LOWLAND
tristate "Audio support for Wolfson Lowland"
depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index 9d03beb..709f605 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -42,6 +42,7 @@ snd-soc-speyside-objs := speyside.o
snd-soc-tobermory-objs := tobermory.o
snd-soc-lowland-objs := lowland.o
snd-soc-littlemill-objs := littlemill.o
+snd-soc-bells-objs := bells.o
obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -65,3 +66,4 @@ obj-$(CONFIG_SND_SOC_SPEYSIDE) += snd-soc-speyside.o
obj-$(CONFIG_SND_SOC_TOBERMORY) += snd-soc-tobermory.o
obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o
obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o
+obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o
diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c
new file mode 100644
index 0000000..2aff223
--- /dev/null
+++ b/sound/soc/samsung/bells.c
@@ -0,0 +1,346 @@
+/*
+ * Bells audio support
+ *
+ * Copyright 2012 Wolfson Microelectronics
+ *
+ * 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 <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+
+#include "../codecs/wm5102.h"
+#include "../codecs/wm9081.h"
+
+/*
+ * 44.1kHz based clocks for the SYSCLK domain, use a very high clock
+ * to allow all the DSP functionality to be enabled if desired.
+ */
+#define SYSCLK_RATE (44100 * 1024)
+
+/* 48kHz based clocks for the ASYNC domain */
+#define ASYNCCLK_RATE (48000 * 512)
+
+/* BCLK2 is fixed at this currently */
+#define BCLK2_RATE (64 * 8000)
+
+/*
+ * Expect a 24.576MHz crystal if one is fitted (the driver will function
+ * if this is not fitted).
+ */
+#define MCLK_RATE 24576000
+
+#define WM9081_AUDIO_RATE 44100
+#define WM9081_MCLK_RATE (WM9081_AUDIO_RATE * 256)
+
+static int bells_set_bias_level(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ int ret;
+
+ if (dapm->dev != codec_dai->dev)
+ return 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_PREPARE:
+ if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
+ ARIZONA_FLL_SRC_MCLK1,
+ MCLK_RATE,
+ SYSCLK_RATE);
+ if (ret < 0)
+ pr_err("Failed to start FLL: %d\n", ret);
+
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
+ ARIZONA_FLL_SRC_AIF2BCLK,
+ BCLK2_RATE,
+ ASYNCCLK_RATE);
+ if (ret < 0)
+ pr_err("Failed to start FLL: %d\n", ret);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int bells_set_bias_level_post(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ int ret;
+
+ if (dapm->dev != codec_dai->dev)
+ return 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_STANDBY:
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
+ if (ret < 0) {
+ pr_err("Failed to stop FLL: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL2, 0, 0, 0);
+ if (ret < 0) {
+ pr_err("Failed to stop FLL: %d\n", ret);
+ return ret;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ dapm->bias_level = level;
+
+ return 0;
+}
+
+static int bells_late_probe(struct snd_soc_card *card)
+{
+ struct snd_soc_codec *codec = card->rtd[0].codec;
+ struct snd_soc_dai *aif1_dai = card->rtd[0].codec_dai;
+ struct snd_soc_dai *aif2_dai = card->rtd[1].cpu_dai;
+ struct snd_soc_dai *aif3_dai = card->rtd[2].cpu_dai;
+ struct snd_soc_dai *wm9081_dai = card->rtd[2].codec_dai;
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
+ if (ret != 0) {
+ dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
+ if (ret != 0) {
+ dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
+ if (ret != 0) {
+ dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
+ ARIZONA_CLK_SRC_FLL1, SYSCLK_RATE,
+ SND_SOC_CLOCK_IN);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
+ WM9081_MCLK_RATE, SND_SOC_CLOCK_OUT);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
+ ARIZONA_CLK_SRC_FLL2, ASYNCCLK_RATE,
+ SND_SOC_CLOCK_IN);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
+ 0, WM9081_MCLK_RATE, 0);
+ if (ret != 0) {
+ dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_pcm_stream baseband_params = {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .rate_min = 8000,
+ .rate_max = 8000,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+static const struct snd_soc_pcm_stream sub_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ .rate_min = WM9081_AUDIO_RATE,
+ .rate_max = WM9081_AUDIO_RATE,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+static struct snd_soc_dai_link bells_dai_wm5102[] = {
+ {
+ .name = "CPU",
+ .stream_name = "CPU",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm5102-aif1",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm5102-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ },
+ {
+ .name = "Baseband",
+ .stream_name = "Baseband",
+ .cpu_dai_name = "wm5102-aif2",
+ .codec_dai_name = "wm1250-ev1",
+ .codec_name = "wm1250-ev1.1-0027",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .ignore_suspend = 1,
+ .params = &baseband_params,
+ },
+ {
+ .name = "Sub",
+ .stream_name = "Sub",
+ .cpu_dai_name = "wm5102-aif3",
+ .codec_dai_name = "wm9081-hifi",
+ .codec_name = "wm9081.1-006c",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .params = &sub_params,
+ },
+};
+
+static struct snd_soc_dai_link bells_dai_wm5110[] = {
+ {
+ .name = "CPU",
+ .stream_name = "CPU",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm5110-aif1",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm5110-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ },
+ {
+ .name = "Baseband",
+ .stream_name = "Baseband",
+ .cpu_dai_name = "wm5110-aif2",
+ .codec_dai_name = "wm1250-ev1",
+ .codec_name = "wm1250-ev1.1-0027",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .ignore_suspend = 1,
+ .params = &baseband_params,
+ },
+ {
+ .name = "Sub",
+ .stream_name = "Sub",
+ .cpu_dai_name = "wm5102-aif3",
+ .codec_dai_name = "wm9081-hifi",
+ .codec_name = "wm9081.1-006c",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .params = &sub_params,
+ },
+};
+
+static struct snd_soc_codec_conf bells_codec_conf[] = {
+ {
+ .dev_name = "wm9081.1-006c",
+ .name_prefix = "Sub",
+ },
+};
+
+static struct snd_soc_dapm_route bells_routes[] = {
+ { "Sub CLK_SYS", NULL, "OPCLK" },
+};
+
+static struct snd_soc_card bells_cards[] = {
+ {
+ .name = "Bells WM5102",
+ .owner = THIS_MODULE,
+ .dai_link = bells_dai_wm5102,
+ .num_links = ARRAY_SIZE(bells_dai_wm5102),
+ .codec_conf = bells_codec_conf,
+ .num_configs = ARRAY_SIZE(bells_codec_conf),
+
+ .late_probe = bells_late_probe,
+
+ .dapm_routes = bells_routes,
+ .num_dapm_routes = ARRAY_SIZE(bells_routes),
+
+ .set_bias_level = bells_set_bias_level,
+ .set_bias_level_post = bells_set_bias_level_post,
+ },
+ {
+ .name = "Bells WM5110",
+ .owner = THIS_MODULE,
+ .dai_link = bells_dai_wm5110,
+ .num_links = ARRAY_SIZE(bells_dai_wm5110),
+ .codec_conf = bells_codec_conf,
+ .num_configs = ARRAY_SIZE(bells_codec_conf),
+
+ .late_probe = bells_late_probe,
+
+ .dapm_routes = bells_routes,
+ .num_dapm_routes = ARRAY_SIZE(bells_routes),
+
+ .set_bias_level = bells_set_bias_level,
+ .set_bias_level_post = bells_set_bias_level_post,
+ },
+};
+
+
+static __devinit int bells_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ bells_cards[pdev->id].dev = &pdev->dev;
+
+ ret = snd_soc_register_card(&bells_cards[pdev->id]);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "snd_soc_register_card(%s) failed: %d\n",
+ bells_cards[pdev->id].name, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __devexit bells_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_card(&bells_cards[pdev->id]);
+
+ return 0;
+}
+
+static struct platform_driver bells_driver = {
+ .driver = {
+ .name = "bells",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bells_probe,
+ .remove = __devexit_p(bells_remove),
+};
+
+module_platform_driver(bells_driver);
+
+MODULE_DESCRIPTION("Bells audio support");
+MODULE_AUTHOR("Mark Brown <broonie at opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:bells");
--
1.7.10.4
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