mirror of
https://github.com/54shady/kernel_drivers_examples.git
synced 2025-08-11 23:32:00 +00:00
codec : add es8316 DT
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zeroway
@ -1,4 +1,4 @@
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# Codec driver example(es8323 on rockchip)
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# Codec driver example(es8323/es8316 on rockchip)
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## Codec驱动(es8323.c)
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@ -141,6 +141,42 @@
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tinymix <ctrl id> <value>
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## Codec驱动(es8316.c)
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### 硬件连接(同ES8323)
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### DeviceTree Describe
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&i2c2 {
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es8316: es8316@10 {
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compatible = "es8316";
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reg = <0x10>;
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spk-con-gpio = <&gpio7 GPIO_B7 GPIO_ACTIVE_HIGH>;
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hp-con-gpio = <&gpio0 GPIO_B5 GPIO_ACTIVE_HIGH>;
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hp-det-gpio = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
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};
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};
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## Machine驱动(rk_es8316.c rockchip平台)
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### DeviceTree Describe
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/ {
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rockchip-es8316 {
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compatible = "rockchip-es8316";
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dais {
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dai0 {
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audio-codec = <&es8316>;
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audio-controller = <&i2s>;
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format = "i2s";
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};
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};
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};
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};
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## Platform驱动(rk_i2s.c rockchip平台, 同ES8323)
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## 耳机检测
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[参考文章Android4.×耳机插拔检测](http://blog.csdn.net/fengying765/article/details/38301483)
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@ -93,6 +93,10 @@ static int es8316_volatile(struct snd_soc_codec *codec, unsigned int reg)
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}
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/* codec private data */
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struct es8316_chip {
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/* alway include these two member */
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struct device *dev;
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struct i2c_client *client;
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struct regmap *regmap;
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unsigned int dmic_amic;
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unsigned int sysclk;
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@ -1272,36 +1276,20 @@ err:
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return;
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}
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static int es8316_i2c_probe(struct i2c_client *i2c_client,
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const struct i2c_device_id *id)
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int gpio_setup(struct es8316_chip *chip, struct i2c_client *client)
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{
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struct es8316_chip *chip;
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int ret = -1;
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unsigned long irq_flag = 0;
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int hp_irq = 0;
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int val = 0;
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int ret;
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enum of_gpio_flags flags;
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struct device_node *np = i2c_client->dev.of_node;
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DBG("---%s---probe start\n", __func__);
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chip = kzalloc(sizeof(*chip), GFP_KERNEL);
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if (chip == NULL)
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return -ENOMEM;
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else
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es8316_private = chip;
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chip->dmic_amic = amic_used; /*if internal mic is amic*/
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chip->pwr_count = 0;
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i2c_set_clientdata(i2c_client, chip);
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struct device_node *np = client->dev.of_node;
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chip->spk_ctl_gpio = of_get_named_gpio_flags(np,
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"spk-con-gpio", 0, &flags);
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if (chip->spk_ctl_gpio < 0) {
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if (chip->spk_ctl_gpio < 0)
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{
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DBG("%s() Can not read property spk codec-en-gpio\n", __func__);
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chip->spk_ctl_gpio = INVALID_GPIO;
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} else {
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}
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else
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{
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chip->spk_gpio_level = (flags & OF_GPIO_ACTIVE_LOW) ? 0 : 1;
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ret = gpio_request(chip->spk_ctl_gpio, NULL);
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gpio_direction_output(chip->spk_ctl_gpio,
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@ -1310,10 +1298,13 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client,
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chip->hp_ctl_gpio = of_get_named_gpio_flags(np,
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"hp-con-gpio", 0, &flags);
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if (chip->hp_ctl_gpio < 0) {
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if (chip->hp_ctl_gpio < 0)
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{
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DBG("%s() Can not read property hp codec-en-gpio\n", __func__);
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chip->hp_ctl_gpio = INVALID_GPIO;
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} else {
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}
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else
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{
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chip->hp_gpio_level = (flags & OF_GPIO_ACTIVE_LOW) ? 0 : 1;
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ret = gpio_request(chip->hp_ctl_gpio, NULL);
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gpio_direction_output(chip->hp_ctl_gpio, !chip->hp_gpio_level);
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@ -1321,44 +1312,75 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client,
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chip->hp_det_gpio = of_get_named_gpio_flags(np,
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"hp-det-gpio", 0, &flags);
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if (chip->hp_det_gpio < 0) {
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if (chip->hp_det_gpio < 0)
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{
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DBG("%s() Can not read property hp_det gpio\n", __func__);
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chip->hp_det_gpio = INVALID_GPIO;
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} else {
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}
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else
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{
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chip->hp_det_level = (flags & OF_GPIO_ACTIVE_LOW) ? 0 : 1;
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ret = gpio_request(chip->hp_det_gpio, NULL);
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if (ret != 0) {
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if (ret != 0)
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{
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DBG("%s request HP_DET error", __func__);
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return ret;
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}
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gpio_direction_input(chip->hp_det_gpio);
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}
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}
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irq_flag = IRQF_TRIGGER_LOW | IRQF_ONESHOT;
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hp_irq = gpio_to_irq(chip->hp_det_gpio);
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static int es8316_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct es8316_chip *chip;
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int ret = -1;
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unsigned long irq_flag = 0;
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int hp_irq = 0;
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int val = 0;
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struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
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val = gpio_get_value(chip->hp_det_gpio);
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if (val == chip->hp_det_level) {
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pr_info("hp inserted.\n");
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hp_irq_flag = 1;
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es8316_set_gpio(ES8316_CODEC_SET_SPK, !chip->spk_gpio_level);
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printk("%s, %d, %d\n", __FUNCTION__, __LINE__, !chip->spk_gpio_level);
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}
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if (hp_irq)
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ret = request_threaded_irq(hp_irq, NULL,
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hp_det_irq_handler, irq_flag, "ES8316", NULL);
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/* Do i2c functionality check */
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if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
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dev_warn(&adapter->dev, "I2C-Adapter doesn't support I2C_FUNC_I2C\n");
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return -EIO;
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}
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ret = snd_soc_register_codec(&i2c_client->dev,
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/* alloc memory for chip data */
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chip = devm_kzalloc(&client->dev, sizeof(struct es8316_chip), GFP_KERNEL);
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if (chip == NULL)
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{
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printk("ERROR: No memory\n");
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return -ENOMEM;
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}
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else
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es8316_private = chip;
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/* 设置chip */
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chip->client = client;
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chip->dev = &client->dev;
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chip->dmic_amic = amic_used; /*if internal mic is amic*/
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chip->pwr_count = 0;
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/* set client data */
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i2c_set_clientdata(client, chip);
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/* gpio setup */
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ret = gpio_setup(chip, client);
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if (ret < 0)
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{
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printk("parse gpios error\n");
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}
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/* irq setup */
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ret = devm_request_threaded_irq(chip->dev, gpio_to_irq(chip->hp_det_gpio), NULL, hp_det_irq_handler, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "ES8316", chip);
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if(ret == 0)
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printk("%s:register ISR (irq=%d)\n", __FUNCTION__, gpio_to_irq(chip->hp_det_gpio));
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/* register codec */
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ret = snd_soc_register_codec(&client->dev,
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&soc_codec_dev_es8316,
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&es8316_dai, 1);
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if (ret < 0) {
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kfree(chip);
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return ret;
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}
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return ret;
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}
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22
debug/codec/es8316.dtsi
Normal file
22
debug/codec/es8316.dtsi
Normal file
@ -0,0 +1,22 @@
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/ {
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rockchip-es8316 {
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compatible = "rockchip-es8316";
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dais {
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dai0 {
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audio-codec = <&es8316>;
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audio-controller = <&i2s>;
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format = "i2s";
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};
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};
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};
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};
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&i2c2 {
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es8316: es8316@10 {
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compatible = "es8316";
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reg = <0x10>;
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spk-con-gpio = <&gpio7 GPIO_B7 GPIO_ACTIVE_HIGH>;
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hp-con-gpio = <&gpio0 GPIO_B5 GPIO_ACTIVE_HIGH>;
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hp-det-gpio = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
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};
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};
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