[PATCH 2/4] ASoC: rockchip: add rockchip machine driver for max98090

Xing Zheng
2015-05-12T09:26:35Z

From: zhengxing <zhengxing@rock-chips.com>

The driver is used for rockchip board using a max98090.
Test on RK3288 with max98090.

Signed-off-by: zhengxing <zhengxing@rock-chips.com>
---

sound/soc/rockchip/Kconfig | 10 ++
sound/soc/rockchip/Makefile | 2 +
sound/soc/rockchip/rockchip_machine_driver.c | 6 +
sound/soc/rockchip/rockchip_machine_driver.h | 6 +
sound/soc/rockchip/rockchip_max98090.c | 185 ++++++++++++++++++++++++++
5 files changed, 209 insertions(+)
create mode 100644 sound/soc/rockchip/rockchip_max98090.c

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index e3f51cf..057c457 100644
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -21,3 +21,13 @@ config SND_SOC_ROCKCHIP_MACHINE
help
Say Y or M if you want to add support for Machine driver
for Rockchip I2S device.
+
+config SND_SOC_ROCKCHIP_MAX98090
+ tristate "ASoC support for Rockchip boards using a MAX98090 codec"
+ depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB
+ select SND_SOC_ROCKCHIP_I2S
+ select SND_SOC_MAX98090
+ select SND_SOC_TS3A227E
+ help
+ Say Y or M here if you want to add support for SoC audio on Rockchip
+ boards using the MAX98090 codec, such as Veyron.
diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile
index 47d7c84..23e9b64 100644
--- a/sound/soc/rockchip/Makefile
+++ b/sound/soc/rockchip/Makefile
@@ -5,5 +5,7 @@ obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-i2s.o

# ROCKCHIP Machine Support
snd-soc-rockchip-machine-objs := rockchip_machine_driver.o
+snd-soc-rockchip-max98090-objs := rockchip_max98090.o

obj-$(CONFIG_SND_SOC_ROCKCHIP_MACHINE) += snd-soc-rockchip-machine.o
+obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o
diff --git a/sound/soc/rockchip/rockchip_machine_driver.c b/sound/soc/rockchip/rockchip_machine_driver.c
index 34cae3f..ee09c62 100644
--- a/sound/soc/rockchip/rockchip_machine_driver.c
+++ b/sound/soc/rockchip/rockchip_machine_driver.c
@@ -36,6 +36,12 @@

/* the sound cards of rockchp supports. */
static struct rk_snd_soc_cards rk_snd_cards[] = {
+#ifdef CONFIG_SND_SOC_ROCKCHIP_MAX98090
+ {
+ .name = RK_SND_CARD_MAX98090,
+ .preinit = rk_machine_preinit_max98090,
+ },
+#endif
};

static int snd_rk_mc_preinit(void)
diff --git a/sound/soc/rockchip/rockchip_machine_driver.h b/sound/soc/rockchip/rockchip_machine_driver.h
index 39a7a77..903ed94 100644
--- a/sound/soc/rockchip/rockchip_machine_driver.h
+++ b/sound/soc/rockchip/rockchip_machine_driver.h
@@ -27,4 +27,10 @@ struct rk_snd_soc_cards {
int (*preinit)(struct rk_snd_soc_cards *soc_card);
};

+/* the sound cards of rockchp supports. */
+#ifdef CONFIG_SND_SOC_ROCKCHIP_MAX98090
+#define RK_SND_CARD_MAX98090 "rk_snd_max98090"
+int rk_machine_preinit_max98090(struct rk_snd_soc_cards *soc_card);
+#endif
+
#endif /* __ROCKCHIP_MACHINE_DRIVER_H__ */
diff --git a/sound/soc/rockchip/rockchip_max98090.c b/sound/soc/rockchip/rockchip_max98090.c
new file mode 100644
index 0000000..f56dc69c
--- /dev/null
+++ b/sound/soc/rockchip/rockchip_max98090.c
@@ -0,0 +1,185 @@
+/*
+ * Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
+ *
+ * Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "rockchip_i2s.h"
+#include "../codecs/ts3a227e.h"
+#include "rockchip_machine_driver.h"
+
+static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route rk_audio_map[] = {
+ {"IN34", NULL, "Headset Mic"},
+ {"IN34", NULL, "MICBIAS"},
+ {"MICBIAS", NULL, "Headset Mic"},
+ {"DMICL", NULL, "Int Mic"},
+ {"Headphone", NULL, "HPL"},
+ {"Headphone", NULL, "HPR"},
+ {"Speaker", NULL, "SPKL"},
+ {"Speaker", NULL, "SPKR"},
+};
+
+static const struct snd_kcontrol_new rk_mc_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Int Mic"),
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ int ret = 0;
+ 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 mclk;
+
+ switch (params_rate(params)) {
+ case 48000:
+ mclk = 12288000;
+ break;
+ case 44100:
+ mclk = 11289600;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0) {
+ dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int rk_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_codec *codec = runtime->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ struct snd_soc_card *card = runtime->card;
+ struct rk_mc_private *drv = snd_soc_card_get_drvdata(card);
+
+ card->dapm.idle_bias_off = true;
+
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Headphone");
+ snd_soc_dapm_enable_pin(dapm, "Speaker");
+ snd_soc_dapm_enable_pin(dapm, "Int Mic");
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
+
+ snd_soc_dapm_sync(dapm);
+
+ /* Enable headphone jack detection */
+ return snd_soc_card_jack_new(card, "Headset Jack",
+ SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
+ SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+ SND_JACK_BTN_2 | SND_JACK_BTN_3,
+ &drv->headphone_jack,
+ NULL,
+ 0);
+}
+
+static int rk_98090_headset_init(struct snd_soc_component *component)
+{
+ struct snd_soc_card *card = component->card;
+ struct rk_mc_private *drv = snd_soc_card_get_drvdata(card);
+
+ return ts3a227e_enable_jack_detect(component, &drv->headphone_jack);
+}
+
+static struct snd_soc_ops rk_aif1_ops = {
+ .hw_params = rk_aif1_hw_params,
+};
+
+static struct snd_soc_aux_dev rk_98090_headset_dev = {
+ .name = "Headset Chip",
+ .init = rk_98090_headset_init,
+};
+
+static struct snd_soc_dai_link rk_dailink = {
+ .name = "max98090",
+ .stream_name = "Audio",
+ .codec_dai_name = "HiFi",
+ .init = rk_init,
+ .ops = &rk_aif1_ops,
+ /* set max98090 as slave */
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+};
+
+/* rockchip machine driver for max98090 */
+static struct snd_soc_card snd_soc_card_rk = {
+ .name = "ROCKCHIP-I2S",
+ .dai_link = &rk_dailink,
+ .num_links = 1,
+ .aux_dev = &rk_98090_headset_dev,
+ .num_aux_devs = 1,
+ .dapm_widgets = rk_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
+ .dapm_routes = rk_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
+ .controls = rk_mc_controls,
+ .num_controls = ARRAY_SIZE(rk_mc_controls),
+};
+
+int rk_machine_preinit_max98090(struct rk_snd_soc_cards *soc_card)
+{
+ if (soc_card && !strcmp(soc_card->name, RK_SND_CARD_MAX98090)) {
+ /* pre-init snd card info. */
+ soc_card->card = &snd_soc_card_rk;
+ strcpy(soc_card->compatible,
+ "rockchip,rockchip-audio-max98090");
+
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
+MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
+MODULE_LICENSE("GPL v2");
--
1.7.9.5