[RK3288][Android6.0] 调试笔记 --- RT5640的ctl name列表

Platform: Rockchip
OS: Android 6.0
Kernel: 3.10.92
Codec: RT5640

在查看录音通路的ctl config列表时发现有找不到的ctrl name, 例如：

const struct config_control rt3261_main_mic_capture_controls[] = {
    {
        .ctl_name = "RxDC Mux",
        .str_val = "Mono_ADC",
    },
    ....
};

“RxDC Mux”这个name在驱动中并没有找到，因此它是无效的。
其实这些ctl name可以通过tinymix来确定是否存在，以下是RT5640所有支持的ctl.

root@rk3288:/ # tinymix
Mixer name: 'RK_RT3224'
Number of controls: 145
ctl type    num name                                     value
0   BOOL    2   Speaker Playback Switch                  Off Off
1   INT 2   Speaker Playback Volume                  31 31
2   INT 2   Earpiece Playback Volume                 31 31
3   INT 2   Headphone Playback Volume                31 31
4   BOOL    2   OUT Playback Switch                      Off Off
5   BOOL    2   OUT Channel Switch                       On On
6   INT 2   OUT Playback Volume                      31 31
7   BOOL    1   Mono Playback Switch                     Off
8   BOOL    2   DAC2 Playback Switch                     On On
9   INT 2   DAC1 Playback Volume                     175 175
10  INT 2   Mono DAC Playback Volume                 175 175
11  ENUM    1   IN1 Mode Control                         Differential
12  INT 1   IN1 Boost                                5
13  ENUM    1   IN2 Mode Control                         Differential
14  INT 1   IN2 Boost                                0
15  ENUM    1   IN3 Mode Control                         Single ended
16  INT 1   IN3 Boost                                0
17  ENUM    1   LOUT Mode Control                        Differential
18  INT 2   IN Capture Volume                        23 23
19  BOOL    2   ADC Capture Switch                       On On
20  INT 2   ADC Capture Volume                       47 47
21  INT 2   Mono ADC Capture Volume                  60 60
22  INT 2   ADC Boost Gain                           0 0
23  ENUM    1   Class D SPK Ratio Control                2.77x
24  ENUM