rk3399 android 11 rt5651 headset 录音调试

功能:rt5651 使用耳机时候无法录音，调试并解决

硬件：耳机使用的是MIC3P 对应到RT5651的IN3P引脚。

1.首先确认耳机检测上报的必须是带MIC的状态

MICROPHONE 代表带MIC的耳机，HEADPHONE代表不带MIC的耳机

rk3399_Android11:/sys/class/extcon/rk_headset # cd cable.0/
rk3399_Android11:/sys/class/extcon/rk_headset/cable.0 # cat name
MICROPHONE
rk3399_Android11:/sys/class/extcon/rk_headset/cable.0 # cat state
1
rk3399_Android11:/sys/class/extcon/rk_headset/cable.0 # cd ..
rk3399_Android11:/sys/class/extcon/rk_headset # cd ca
cable.0/  cable.1/
rk3399_Android11:/sys/class/extcon/rk_headset # cd cable.1/
rk3399_Android11:/sys/class/extcon/rk_headset/cable.1 # cat name
HEADPHONE
rk3399_Android11:/sys/class/extcon/rk_headset/cable.1 # cat state
0

驱动主要在

drivers/headset_observe/rk_headset_irq_hook_adc.c

drivers/headset_observe/rk_headset.c

由于我的硬件只支持四段耳机，所以直接将驱动中的状态上报都改成了MICROPHONE

diff --git a/drivers/headset_observe/rk_headset.c b/drivers/headset_observe/rk_headset.c
index 5b16db7..3c8ba57 100644
--- a/drivers/headset_observe/rk_headset.c
+++ b/drivers/headset_observe/rk_headset.c
@@ -49,7 +49,7 @@
 #endif
 
 #define BIT_HEADSET             BIT(0)
-#define BIT_HEADSET_NO_MIC      BIT(1)
+#define BIT_HEADSET_NO_MIC      BIT(0)
 
 #define HEADSET 0
 #define HOOK 1
@@ -211,10 +211,10 @@ static void headsetobserve_work(struct work_struct *work)
                                         IRQF_TRIGGER_FALLING);
        }
        if (headset_info->cur_headset_status)
-               extcon_set_state_sync(headset_info->edev, EXTCON_JACK_HEADPHONE,
+               extcon_set_state_sync(headset_info->edev, EXTCON_JACK_MICROPHONE,
                                      true);
        else
-               extcon_set_state_sync(headset_info->edev, EXTCON_JACK_HEADPHONE,
+               extcon_set_state_sync(headset_info->edev, EXTCON_JACK_MICROPHONE,
                                      false);
        DBG("headset_info->cur_headset_status = %d\n",
            headset_info->cur_headset_status);
@@ -311,7 +311,7 @@ static void headset_timer_callback(struct timer_list *t)
                                      EXTCON_JACK_MICROPHONE, true);
        else
                extcon_set_state_sync(headset_info->edev,
-                                     EXTCON_JACK_MICROPHONE, false);
+                                     EXTCON_JACK_MICROPHONE, true);
        DBG("headset_info->cur_headset_status = %d\n",
            headset_info->cur_headset_status);
 out:
diff --git a/drivers/headset_observe/rk_headset_irq_hook_adc.c b/drivers/headset_observe/rk_headset_irq_hook_adc.c
index ca3e0a6..b157cad 100644
--- a/drivers/headset_observe/rk_headset_irq_hook_adc.c
+++ b/drivers/headset_observe/rk_headset_irq_hook_adc.c
@@ -53,7 +53,7 @@
 #define HOOK_DEFAULT_VAL       1024
 
 #define BIT_HEADSET             BIT(0)
-#define BIT_HEADSET_NO_MIC      BIT(1)
+#define BIT_HEADSET_NO_MIC      BIT(0)
 
 #define HEADSET 0
 #define HOOK 1
@@ -178,7 +178,7 @@ static irqreturn_t headset_interrupt(int irq, void *dev_id)
                        headset_info->isMic = 0;
                        headset_info->cur_headset_status = BIT_HEADSET_NO_MIC;
                        extcon_set_state_sync(headset_info->edev,
-                                             EXTCON_JACK_HEADPHONE, true);
+                                             EXTCON_JACK_MICROPHONE, true);
                        DBG("headset notice android headset status = %d\n",
                            headset_info->cur_headset_status);
                }
@@ -312,7 +312,7 @@ static void hook_once_work(struct work_struct *work)
                                              EXTCON_JACK_MICROPHONE, true);
                } else {
                        extcon_set_state_sync(headset_info->edev,

2.修改完成后耳机录音的时候可以正常切换到耳机通路，但是声音太小，修改

hardware/rockchip/audio/tinyalsa

diff --git a/tinyalsa_hal/codec_config/rt5651_config.h b/tinyalsa_hal/codec_config/rt5651_config.h
index fa16c42..59095a1 100644
--- a/tinyalsa_hal/codec_config/rt5651_config.h
+++ b/tinyalsa_hal/codec_config/rt5651_config.h
@@ -756,7 +756,7 @@ const struct config_control rt5651_hands_free_mic_capture_controls[] = {
         .int_val = {on, on},
     },
     {
-        .ctl_name = "IN1 Boost",
+        .ctl_name = "IN3 Boost",
         .int_val = {3},
     }