[PATCH v2 4/5] ASoC: add mmp brownstone support
Zhangfei Gao
zhangfei.gao at marvell.com
Mon Jun 11 06:04:40 EDT 2012
Adds Alsa audio platform driver for mmp brownstone machine
Signed-off-by: Zhangfei Gao <zhangfei.gao at marvell.com>
Signed-off-by: Leo Yan <leoy at marvell.com>
---
sound/soc/pxa/Kconfig | 10 +++
sound/soc/pxa/Makefile | 2 +
sound/soc/pxa/brownstone.c | 174 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 186 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/pxa/brownstone.c
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 6c3d00b..d389fd5 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -206,3 +206,13 @@ config SND_PXA2XX_SOC_IMOTE2
help
Say Y if you want to add support for SoC audio on the
IMote 2.
+
+config SND_MMP_SOC_BROWNSTONE
+ tristate "SoC Audio support for Marvell Brownstone"
+ depends on SND_MMP_SOC && MACH_BROWNSTONE
+ select SND_MMP_SOC_SSPA
+ select MFD_WM8994
+ select SND_SOC_WM8994
+ help
+ Say Y if you want to add support for SoC audio on the
+ Marvell Brownstone reference platform.
diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile
index 07b8417..c12aa2a 100644
--- a/sound/soc/pxa/Makefile
+++ b/sound/soc/pxa/Makefile
@@ -32,6 +32,7 @@ snd-soc-mioa701-objs := mioa701_wm9713.o
snd-soc-z2-objs := z2.o
snd-soc-imote2-objs := imote2.o
snd-soc-raumfeld-objs := raumfeld.o
+snd-soc-brownstone-objs := brownstone.o
obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
@@ -51,3 +52,4 @@ obj-$(CONFIG_SND_SOC_TAVOREVB3) += snd-soc-tavorevb3.o
obj-$(CONFIG_SND_SOC_ZYLONITE) += snd-soc-zylonite.o
obj-$(CONFIG_SND_PXA2XX_SOC_IMOTE2) += snd-soc-imote2.o
obj-$(CONFIG_SND_SOC_RAUMFELD) += snd-soc-raumfeld.o
+obj-$(CONFIG_SND_MMP_SOC_BROWNSTONE) += snd-soc-brownstone.o
diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c
new file mode 100644
index 0000000..5e666e0
--- /dev/null
+++ b/sound/soc/pxa/brownstone.c
@@ -0,0 +1,174 @@
+/*
+ * linux/sound/soc/pxa/brownstone.c
+ *
+ * Copyright (C) 2011 Marvell International Ltd.
+ *
+ * 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 <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/wm8994.h"
+#include "mmp-sspa.h"
+
+static const struct snd_kcontrol_new brownstone_dapm_control[] = {
+ SOC_DAPM_PIN_SWITCH("Ext Spk"),
+};
+
+static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
+ SND_SOC_DAPM_HP("Headset Stereophone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Main Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route brownstone_audio_map[] = {
+ {"Ext Spk", NULL, "SPKOUTLP"},
+ {"Ext Spk", NULL, "SPKOUTLN"},
+ {"Ext Spk", NULL, "SPKOUTRP"},
+ {"Ext Spk", NULL, "SPKOUTRN"},
+
+ {"Headset Stereophone", NULL, "HPOUT1L"},
+ {"Headset Stereophone", NULL, "HPOUT1R"},
+
+ {"IN1RN", NULL, "Headset Mic"},
+
+ {"DMIC1DAT", NULL, "MICBIAS1"},
+ {"MICBIAS1", NULL, "Main Mic"},
+};
+
+static int brownstone_wm8994_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+ snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Main Mic");
+
+ /* set endpoints to not connected */
+ snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
+ snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
+ snd_soc_dapm_nc_pin(dapm, "IN1LN");
+ snd_soc_dapm_nc_pin(dapm, "IN1LP");
+ snd_soc_dapm_nc_pin(dapm, "IN1RP");
+ snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
+ snd_soc_dapm_nc_pin(dapm, "IN2RN");
+ snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
+ snd_soc_dapm_nc_pin(dapm, "IN2LN");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static int brownstone_wm8994_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;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int freq_out, sspa_mclk, sysclk;
+ int sspa_div;
+
+ if (params_rate(params) > 11025) {
+ freq_out = params_rate(params) * 512;
+ sysclk = params_rate(params) * 256;
+ sspa_mclk = params_rate(params) * 64;
+ } else {
+ freq_out = params_rate(params) * 1024;
+ sysclk = params_rate(params) * 512;
+ sspa_mclk = params_rate(params) * 64;
+ }
+ sspa_div = freq_out;
+ do_div(sspa_div, sspa_mclk);
+
+ snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
+ snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
+ snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
+
+ /* set wm8994 sysclk */
+ snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
+
+ return 0;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops brownstone_ops = {
+ .hw_params = brownstone_wm8994_hw_params,
+};
+
+static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
+{
+ .name = "WM8994",
+ .stream_name = "WM8994 HiFi",
+ .cpu_dai_name = "mmp-sspa-dai.0",
+ .codec_dai_name = "wm8994-aif1",
+ .platform_name = "mmp-pcm-audio",
+ .codec_name = "wm8994-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &brownstone_ops,
+ .init = brownstone_wm8994_init,
+},
+};
+
+/* audio machine driver */
+static struct snd_soc_card brownstone = {
+ .name = "brownstone",
+ .dai_link = brownstone_wm8994_dai,
+ .num_links = ARRAY_SIZE(brownstone_wm8994_dai),
+
+ .controls = brownstone_dapm_control,
+ .num_controls = ARRAY_SIZE(brownstone_dapm_control),
+ .dapm_widgets = brownstone_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
+ .dapm_routes = brownstone_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
+};
+
+static int __devinit brownstone_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ brownstone.dev = &pdev->dev;
+ ret = snd_soc_register_card(&brownstone);
+ if (ret)
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ return ret;
+}
+
+static int __devexit brownstone_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_card(&brownstone);
+ return 0;
+}
+
+static struct platform_driver mmp_driver = {
+ .driver = {
+ .name = "brownstone-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = brownstone_probe,
+ .remove = __devexit_p(brownstone_remove),
+};
+
+module_platform_driver(mmp_driver);
+
+MODULE_AUTHOR("Leo Yan <leoy at marvell.com>");
+MODULE_DESCRIPTION("ALSA SoC Brownstone");
+MODULE_LICENSE("GPL");
--
1.7.1
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