Add Power Manage Function

Author: Tinyu-Zhao

src/AXP2101.cpp

@@ -295,38 +295,61 @@ void AXP2101::coreS3_AW9523_init() {
     write1Byte(0x58, 0x02, 0b00000100);
 }
 
-void AXP2101::setBoostEn(bool state) {
-    uint8_t value = read8Bit(AW9523_ADDR, 0x03);
+void AXP2101::setBusOutEn(bool state) {  // BUS OUT EN
+    uint8_t value = read8Bit(AW9523_ADDR, 0x02);
     if (state == true)
-        value |= 0b10000000;
+        value |= 0b00000010;
     else
-        value &= ~0b10000000;
-    write1Byte(AW9523_ADDR, 0x03, value);
+        value &= ~0b00000010;
+    write1Byte(AW9523_ADDR, 0x02, value);
 }
 
-void AXP2101::setBusOutEn(bool state) {
+void AXP2101::setUsbOtgEn(bool state) {  // USB OTG EN
     uint8_t value = read8Bit(AW9523_ADDR, 0x02);
     if (state == true)
-        value |= 0b00000010;
+        value |= 0b00100000;
     else
-        value &= ~0b00000010;
+        value &= ~0b00100000;
     write1Byte(AW9523_ADDR, 0x02, value);
 }
 
+void AXP2101::setBoostEn(bool state) {  // Boost
+    uint8_t value = read8Bit(AW9523_ADDR, 0x03);
+    if (state == true)
+        value |= 0b10000000;
+    else
+        value &= ~0b10000000;
+    write1Byte(AW9523_ADDR, 0x03, value);
+}
+
 void AXP2101::setBoostBusOutEn(bool state) {
     setBoostEn(state);
     // delay is required to prevent reverse current flow from VBUS to BUS_OUT
     if (state == false) delay(250);
     setBusOutEn(state);
 }
 
-void AXP2101::setUsbOtgEn(bool state) {
-    uint8_t value = read8Bit(AW9523_ADDR, 0x02);
-    if (state == true)
-        value |= 0b00100000;
-    else
-        value &= ~0b00100000;
-    write1Byte(AW9523_ADDR, 0x02, value);
+void AXP2101::powerModeSet(power_mode mode) {
+    switch (mode) {
+        case POWER_MODE_USB_IN_BUS_IN:
+            setUsbOtgEn(false);       // USB_OTG_EN=0
+            setBoostBusOutEn(false);  // BUS_OUT_EN,Boost=0
+            break;
+        case POWER_MODE_USB_IN_BUS_OUT:
+            setUsbOtgEn(false);      // USB_OTG_EN=0
+            setBoostBusOutEn(true);  // BUS_OUT_EN,Boost=1
+            break;
+        case POWER_MODE_USB_OUT_BUS_IN:
+            setUsbOtgEn(true);        // USB_OTG_EN=1
+            setBoostBusOutEn(false);  // BUS_OUT_EN,Boost=0
+            break;
+        case POWER_MODE_USB_OUT_BUS_OUT:
+            setUsbOtgEn(true);       // USB_OTG_EN=1
+            setBoostBusOutEn(true);  // BUS_OUT_EN,Boost=1
+            break;
+        default:
+            break;
+    }
 }
 
 /**

src/AXP2101.h

@@ -4,10 +4,15 @@
 #include "utility/I2C_PORT.h"
 
 /* AXP173 device address */
-#define AXP2101_ADDR      0x34
-#define AW9523_ADDR       0x58
-#define AXP173_ADDR_READ  0x69
-#define AXP173_ADDR_WRITE 0x68
+#define AXP2101_ADDR 0x34
+#define AW9523_ADDR  0x58
+
+enum power_mode {
+    POWER_MODE_USB_IN_BUS_IN = 0,
+    POWER_MODE_USB_IN_BUS_OUT,
+    POWER_MODE_USB_OUT_BUS_IN,
+    POWER_MODE_USB_OUT_BUS_OUT,
+};
 
 class AXP2101 : public I2C_PORT {
    private:
@@ -52,6 +57,7 @@ class AXP2101 : public I2C_PORT {
         COULOMETER_PAUSE,
         COULOMETER_ENABLE,
     };
+
     /* Init */
     bool begin(TwoWire* wire = &Wire1);
     /* Power input state */
@@ -97,10 +103,12 @@ class AXP2101 : public I2C_PORT {
     void coreS3_init();
     void coreS3_AW9523_init();
 
-    void setBoostEn(bool state);
+    // Power Manage
     void setBusOutEn(bool state);
-    void setBoostBusOutEn(bool state);
     void setUsbOtgEn(bool state);
+    void setBoostEn(bool state);
+    void setBoostBusOutEn(bool state);
+    void powerModeSet(power_mode mode);
 
     void coreS3_VBUS_boost(bool state);
     bool isSDCardExist();