[PATCH 4/4] ASoC: add mmp brownstone support
Zhangfei Gao
zhangfei.gao at marvell.com
Fri May 25 03:11:03 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 | 9 ++
sound/soc/pxa/Makefile | 2 +
sound/soc/pxa/brownstone.c | 303 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 314 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/pxa/brownstone.c
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 39461ba..b5fa91f 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -205,3 +205,12 @@ 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 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..b024e58
--- /dev/null
+++ b/sound/soc/pxa/brownstone.c
@@ -0,0 +1,303 @@
+/*
+ * 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 <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <linux/suspend.h>
+#include <linux/i2c.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/mfd/wm8994/registers.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/soc-dapm.h>
+#include <asm/mach-types.h>
+
+#include "../codecs/wm8994.h"
+#include "mmp-sspa.h"
+
+#define BROWNSTONE_HP 0
+#define BROWNSTONE_MIC 1
+#define BROWNSTONE_HEADSET 2
+#define BROWNSTONE_HP_OFF 3
+#define BROWNSTONE_SPK_ON 0
+#define BROWNSTONE_SPK_OFF 1
+
+static struct snd_soc_card brownstone;
+static int brownstone_jack_func;
+static int brownstone_spk_func;
+
+static void brownstone_ext_control(struct snd_soc_dapm_context *dapm)
+{
+ if (brownstone_spk_func == BROWNSTONE_SPK_ON) {
+ snd_soc_dapm_enable_pin(dapm, "Ext Left Spk");
+ snd_soc_dapm_enable_pin(dapm, "Ext Right Spk");
+ } else {
+ snd_soc_dapm_disable_pin(dapm, "Ext Left Spk");
+ snd_soc_dapm_disable_pin(dapm, "Ext Right Spk");
+ }
+
+ /* set up jack connection */
+ switch (brownstone_jack_func) {
+ case BROWNSTONE_HP:
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Main Mic");
+ snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
+ break;
+ case BROWNSTONE_MIC:
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Main Mic");
+ snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
+ break;
+ case BROWNSTONE_HEADSET:
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Main Mic");
+ snd_soc_dapm_enable_pin(dapm, "Headset Stereophone");
+ break;
+ case BROWNSTONE_HP_OFF:
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Main Mic");
+ snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
+ break;
+ }
+ snd_soc_dapm_sync(dapm);
+ return;
+}
+
+static int brownstone_get_jack(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = brownstone_jack_func;
+ return 0;
+}
+
+static int brownstone_set_jack(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+
+ if (brownstone_jack_func == ucontrol->value.integer.value[0])
+ return 0;
+
+ brownstone_jack_func = ucontrol->value.integer.value[0];
+ brownstone_ext_control(&card->dapm);
+ return 1;
+}
+
+static int brownstone_get_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = brownstone_spk_func;
+ return 0;
+}
+
+static int brownstone_set_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+
+ if (brownstone_spk_func == ucontrol->value.integer.value[0])
+ return 0;
+
+ brownstone_spk_func = ucontrol->value.integer.value[0];
+ brownstone_ext_control(&card->dapm);
+ return 1;
+}
+
+static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Ext Left Spk", NULL),
+ SND_SOC_DAPM_SPK("Ext Right 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 Left Spk", NULL, "SPKOUTLP"},
+ {"Ext Left Spk", NULL, "SPKOUTLN"},
+
+ {"Ext Right Spk", NULL, "SPKOUTRP"},
+ {"Ext Right Spk", NULL, "SPKOUTRN"},
+
+ {"Headset Stereophone", NULL, "HPOUT1L"},
+ {"Headset Stereophone", NULL, "HPOUT1R"},
+
+ {"IN1RN", NULL, "Headset Mic"},
+
+ {"DMIC1DAT", NULL, "MICBIAS1"},
+ {"MICBIAS1", NULL, "Main Mic"},
+};
+
+static const char *jack_function[] = {"Headphone", "Mic", "Headset", "Off"};
+static const char *spk_function[] = {"On", "Off"};
+static const struct soc_enum brownstone_enum[] = {
+ SOC_ENUM_SINGLE_EXT(4, jack_function),
+ SOC_ENUM_SINGLE_EXT(2, spk_function),
+};
+
+static const struct snd_kcontrol_new brownstone_wm8994_controls[] = {
+ SOC_ENUM_EXT("Jack Function", brownstone_enum[0],
+ brownstone_get_jack, brownstone_set_jack),
+ SOC_ENUM_EXT("Speaker Function", brownstone_enum[1],
+ brownstone_get_spk, brownstone_set_spk),
+};
+
+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;
+
+ brownstone_jack_func = BROWNSTONE_MIC;
+ brownstone_spk_func = BROWNSTONE_SPK_ON;
+
+ snd_soc_dapm_enable_pin(dapm, "Ext Left Spk");
+ snd_soc_dapm_enable_pin(dapm, "Ext Right 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);
+
+ /* turn on micbias 1/2 always */
+ snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_1,
+ WM8994_MICB1_ENA_MASK |
+ WM8994_MICB2_ENA_MASK,
+ WM8994_MICB1_ENA |
+ WM8994_MICB2_ENA);
+ 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);
+
+ snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+
+ snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+
+ 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",
+ .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_wm8994_controls,
+ .num_controls = ARRAY_SIZE(brownstone_wm8994_controls),
+ .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 = "mmp-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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