[PATCH v2 2/2] ASoC: rockchip-max98090: add driver for rockchip board using a max98090
Jianqun
jay.xu at rock-chips.com
Thu Oct 2 01:36:00 PDT 2014
The driver is used for rockchip board using a max98090.
Test on RK3288 board with max98090.
Signed-off-by: Jianqun Xu <jay.xu at rock-chips.com>
---
changes since v1:
- remove unused defination RK_PLAT_CLK_12M, suggested by Mark
- set master clock according to sample rate, suggested by Mark
- set i2s as master mode for better performance
- dapm sync do nothing so remove it, suggested by Mark
- treat error when to get detect gpios as warning, suggested by Mark
- parse card name before to register card, suggested by Mark
- no need to clear driver data, suggested by Mark
sound/soc/rockchip/Kconfig | 9 +
sound/soc/rockchip/Makefile | 5 +-
sound/soc/rockchip/rockchip_max98090.c | 346 +++++++++++++++++++++++++++++++++
3 files changed, 359 insertions(+), 1 deletion(-)
create mode 100644 sound/soc/rockchip/rockchip_max98090.c
diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index 78fc159..f82fbf5 100644
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -9,3 +9,12 @@ config SND_SOC_ROCKCHIP
config SND_SOC_ROCKCHIP_I2S
tristate
+
+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
+ 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 b921909..c324411 100644
--- a/sound/soc/rockchip/Makefile
+++ b/sound/soc/rockchip/Makefile
@@ -1,4 +1,7 @@
# ROCKCHIP Platform Support
snd-soc-i2s-objs := rockchip_i2s.o
-
obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-i2s.o
+
+# ROCKCHIP Machine Support
+snd-soc-rockchip-max98090-objs := rockchip_max98090.o
+obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o
diff --git a/sound/soc/rockchip/rockchip_max98090.c b/sound/soc/rockchip/rockchip_max98090.c
new file mode 100644
index 0000000..928b161
--- /dev/null
+++ b/sound/soc/rockchip/rockchip_max98090.c
@@ -0,0 +1,346 @@
+/*
+ * 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"
+
+#define DRV_NAME "rockchip-snd-max98090"
+
+struct rk_mc_private {
+ struct snd_soc_jack hp_jack;
+ struct snd_soc_jack mic_jack;
+};
+
+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("Ext Spk", 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"},
+ {"Ext Spk", NULL, "SPKL"},
+ {"Ext Spk", 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("Ext Spk"),
+};
+
+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 srate, mclk;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 8000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 48000:
+ case 64000:
+ case 96000:
+ mclk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ mclk = 11289600;
+ break;
+ default:
+ mclk = 12000000;
+ break;
+ }
+
+ 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 struct snd_soc_jack_pin hp_jack_pin = {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+};
+
+static struct snd_soc_jack_pin mic_jack_pin = {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+};
+
+static struct snd_soc_jack_gpio hp_jack_gpio = {
+ .name = "hp-gpio",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 200,
+ .invert = 1,
+};
+
+static struct snd_soc_jack_gpio mic_jack_gpio = {
+ .name = "mic-gpio",
+ .report = SND_JACK_MICROPHONE,
+ .debounce_time = 200,
+ .invert = 1,
+};
+
+static int rk_init(struct snd_soc_pcm_runtime *runtime)
+{
+ int ret = 0;
+ 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);
+ struct snd_soc_jack *hp_jack = &drv->hp_jack;
+ struct snd_soc_jack *mic_jack = &drv->mic_jack;
+
+ card->dapm.idle_bias_off = true;
+
+ ret = snd_soc_add_card_controls(card, rk_mc_controls,
+ ARRAY_SIZE(rk_mc_controls));
+ if (ret) {
+ pr_err("unable to add card->controls\n");
+ return ret;
+ }
+
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Headphone");
+ snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+ snd_soc_dapm_enable_pin(dapm, "Int Mic");
+
+ /* Enable headphone jack detection */
+ ret = snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
+ hp_jack);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_pins(hp_jack, 1, &hp_jack_pin);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_gpios(hp_jack, 1, &hp_jack_gpio);
+ if (ret)
+ return ret;
+
+ /* Enable mic jack detection */
+ ret = snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
+ mic_jack);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_pins(mic_jack, 1, &mic_jack_pin);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_gpios(mic_jack, 1, &mic_jack_gpio);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+static struct snd_soc_ops rk_aif1_ops = {
+ .hw_params = rk_aif1_hw_params,
+};
+
+static struct snd_soc_dai_link rk_dailink = {
+ .name = "max98090",
+ .stream_name = "Audio",
+ .codec_dai_name = "HiFi",
+ .init = rk_init,
+ .ops = &rk_aif1_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+};
+
+static struct snd_soc_card snd_soc_card_rk = {
+ .name = "ROCKCHIP-I2S",
+ .dai_link = &rk_dailink,
+ .num_links = 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),
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int snd_rk_prepare(struct device *dev)
+{
+ struct snd_soc_card *card = dev_get_drvdata(dev);
+ struct rk_mc_private *drv = snd_soc_card_get_drvdata(card);
+
+ snd_soc_jack_free_gpios(&drv->hp_jack, 1, &hp_jack_gpio);
+ snd_soc_jack_free_gpios(&drv->mic_jack, 1, &mic_jack_gpio);
+
+ return snd_soc_suspend(dev);
+}
+
+static void snd_rk_complete(struct device *dev)
+{
+ struct snd_soc_card *card = dev_get_drvdata(dev);
+ struct rk_mc_private *drv = snd_soc_card_get_drvdata(card);
+
+ snd_soc_jack_add_gpios(&drv->hp_jack, 1, &hp_jack_gpio);
+ snd_soc_jack_add_gpios(&drv->mic_jack, 1, &mic_jack_gpio);
+
+ snd_soc_resume(dev);
+}
+
+static const struct dev_pm_ops rk_max98090_pm_ops = {
+ .prepare = snd_rk_prepare,
+ .complete = snd_rk_complete,
+};
+
+#define RK_MAX98090_PM_OPS (&rk_max98090_pm_ops)
+#else
+#define RK_MAX98090_PM_OPS NULL
+#endif
+
+static int snd_rk_mc_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct rk_mc_private *drv;
+ struct snd_soc_card *card = &snd_soc_card_rk;
+ struct device_node *np = pdev->dev.of_node;
+
+ drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
+ if (!drv)
+ return -ENOMEM;
+
+ hp_jack_gpio.gpio = of_get_named_gpio(np, "rockchip,hp-det-gpios", 0);
+ if (gpio_is_valid(hp_jack_gpio.gpio))
+ dev_warn(&pdev->dev,
+ "Property 'rockchip,hp-det-gpios' missing or invalid\n");
+
+ mic_jack_gpio.gpio = of_get_named_gpio(np, "rockchip,mic-det-gpios", 0);
+ if (gpio_is_valid(mic_jack_gpio.gpio))
+ dev_warn(&pdev->dev,
+ "Property 'rockchip,mic-det-gpios' missing or invalid\n");
+
+ /* register the soc card */
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, drv);
+
+ rk_dailink.codec_of_node = of_parse_phandle(np,
+ "rockchip,audio-codec", 0);
+ if (!rk_dailink.codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'rockchip,audio-codec' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ rk_dailink.cpu_of_node = of_parse_phandle(np,
+ "rockchip,i2s-controller", 0);
+ if (!rk_dailink.cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'rockchip,i2s-controller' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
+
+ ret = snd_soc_of_parse_card_name(card, "rockchip,model");
+ if (ret)
+ return ret;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ pr_err("snd_soc_register_card failed %d\n", ret);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, &card);
+
+ return ret;
+}
+
+static int snd_rk_mc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *soc_card = platform_get_drvdata(pdev);
+ struct rk_mc_private *drv = snd_soc_card_get_drvdata(soc_card);
+
+ snd_soc_jack_free_gpios(&drv->hp_jack, 1, &hp_jack_gpio);
+ snd_soc_jack_free_gpios(&drv->mic_jack, 1, &mic_jack_gpio);
+
+ snd_soc_unregister_card(soc_card);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id rockchip_max98090_of_match[] = {
+ { .compatible = "rockchip,rockchip-audio-max98090", },
+ {},
+};
+
+static struct platform_driver snd_rk_mc_driver = {
+ .probe = snd_rk_mc_probe,
+ .remove = snd_rk_mc_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = RK_MAX98090_PM_OPS,
+ .of_match_table = rockchip_max98090_of_match,
+ },
+};
+
+module_platform_driver(snd_rk_mc_driver);
+MODULE_AUTHOR("jianqun <jay.xu at rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
--
1.9.1
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