feat(GT911): Add CLI command to reset touch panel cfg (#2351)

* GT911: add CLI command to reset config

Related to #2063

* X12S: touch coordinate inversion in GT911 config

Note: config reset with CLI "reset_gt911" required.

* Remove touch sensor software inversion

radio/src/cli.cpp

@@ -1571,6 +1571,40 @@ int cliCrypt(const char ** argv)
 }
 #endif
 
+#if defined(HARDWARE_TOUCH) && !defined(PCBNV14)
+
+// from tp_gt911.cpp
+extern uint8_t tp_gt911_cfgVer;
+
+int cliResetGT911(const char** argv)
+{
+    (void)argv;
+
+    if (!touchGT911Flag) {
+        cliSerialPrint("GT911 not detected: exit\n");
+        return 0;
+    }
+
+    // stop pulses & suspend RTOS scheduler
+    watchdogSuspend(200/*2s*/);
+    stopPulses();
+    vTaskSuspendAll();
+
+    // reset touch controller
+    touchPanelDeInit();
+    cliSerialPrintf("GT911: old config version is %u\n", tp_gt911_cfgVer);
+    tp_gt911_cfgVer = 0;
+    touchPanelInit();
+    cliSerialPrintf("GT911: new config version is %u\n", tp_gt911_cfgVer);
+
+    // restart pulses & RTOS scheduler
+    startPulses();
+    xTaskResumeAll();
+
+    return 0;
+}
+#endif
+
 const CliCommand cliCommands[] = {
   { "beep", cliBeep, "[<frequency>] [<duration>]" },
   { "ls", cliLs, "<directory>" },
@@ -1608,6 +1642,9 @@ const CliCommand cliCommands[] = {
 #endif
 #if defined(ACCESS_DENIED) && defined(DEBUG_CRYPT)
   { "crypt", cliCrypt, "<string to be encrypted>" },
+#endif
+#if defined(HARDWARE_TOUCH) && !defined(PCBNV14)
+  { "reset_gt911", cliResetGT911, ""},
 #endif
   { nullptr, nullptr, nullptr }  /* sentinel */
 };

radio/src/gui/colorlcd/LvglWrapper.cpp

@@ -187,11 +187,6 @@ extern "C" void touchDriverRead(lv_indev_drv_t *drv, lv_indev_data_t *data)
 
   TouchState st = touchPanelRead();
 
-#if defined(TOUCH_PANEL_INVERTED) && !defined(SIMU)
-      st.x = LCD_W - st.x;
-      st.y = LCD_H - st.y;
-#endif
-
   // no touch input if backlight is disabled
   if (!isBacklightEnabled()) {
     reset_inactivity();

radio/src/targets/horus/tp_gt911.cpp

@@ -241,7 +241,11 @@ const uint8_t TOUCH_GT911_Cfg[] =
     0x10,                // 0x804A Y ouptut max : y 272
     0x01,
     GT911_MAX_TP,        // 0x804C Touch number
+#if defined(TOUCH_PANEL_INVERTED)
+    0x3C | 0xC0,         // 0x804D Module switch 1 : 180° rotation
+#else
     0x3C,                // 0x804D Module switch 1 : bit4= xy change Int mode
+#endif
     0x20,                // 0x804E Module switch 2
     0x22,                // 0x804F Shake_Count
     0x0A,                // 0x8050 Filter
@@ -562,21 +566,24 @@ bool I2C_GT911_ReadRegister(uint16_t reg, uint8_t *buf, uint8_t len)
   return true;
 }
 
-bool I2C_GT911_SendConfig()
+bool I2C_GT911_SendConfig(uint8_t cfgVer)
 {
-  uint8_t buf[2];
-  uint8_t i = 0;
-  buf[0] = 0;
-  buf[1] = 1;
+  uint8_t buf[2] = { cfgVer, 1 };
   bool bResult = true;
 
-  for (i = 0; i < sizeof(TOUCH_GT911_Cfg); i++) {
+  for (uint8_t i = 1; i < sizeof(TOUCH_GT911_Cfg); i++) {
     buf[0] += TOUCH_GT911_Cfg[i]; //check sum
   }
   
   buf[0] = (~buf[0]) + 1;
-  if (!I2C_GT911_WriteRegister(GT911_CONFIG_REG, (uint8_t *)TOUCH_GT911_Cfg,
-                               sizeof(TOUCH_GT911_Cfg))) {
+
+  if (!I2C_GT911_WriteRegister(GT911_CONFIG_REG, (uint8_t *)&cfgVer, 1)) {
+    TRACE("GT911 ERROR: write config failed");
+    bResult = false;
+  }
+
+  if (!I2C_GT911_WriteRegister(GT911_CONFIG_REG+1, (uint8_t *)&TOUCH_GT911_Cfg[1],
+                               sizeof(TOUCH_GT911_Cfg)-1)) {
     TRACE("GT911 ERROR: write config failed");
     bResult = false;
   }
@@ -586,6 +593,7 @@ bool I2C_GT911_SendConfig()
     TRACE("GT911 ERROR: write config checksum failed");
     bResult = false;
   }
+
   return bResult;
 }
 
@@ -595,6 +603,8 @@ void touchPanelDeInit(void)
   touchGT911Flag = false;
 }
 
+uint8_t tp_gt911_cfgVer = GT911_CFG_NUMBER;
+
 bool touchPanelInit(void)
 {
   uint8_t tmp[4] = {0};
@@ -638,11 +648,15 @@ bool touchPanelInit(void)
       }
 
       TRACE("Chip config Ver:%x", tmp[0]);
-      if (tmp[0] < GT911_CFG_NUMBER) { // Config ver
+      if ((tp_gt911_cfgVer == 0) || (tmp[0] < tp_gt911_cfgVer)) { // Config ver
         TRACE("Sending new config %d", GT911_CFG_NUMBER);
-        if (!I2C_GT911_SendConfig()) {
+        if (!I2C_GT911_SendConfig(tp_gt911_cfgVer)) {
           TRACE("GT911 ERROR: sending configration failed");
         }
+        if (!I2C_GT911_ReadRegister(GT911_CONFIG_REG, tmp, 1)) {
+          TRACE("GT911 ERROR: configuration register read failed");
+        }
+        tp_gt911_cfgVer = tmp[0];
       }
 
       if (!I2C_GT911_ReadRegister(GT911_FIRMWARE_VERSION_REG, tmp, 2)) {

radio/src/targets/horus/tp_gt911.h

@@ -29,6 +29,8 @@
 extern bool touchGT911Flag;
 extern uint16_t touchGT911fwver;
 extern uint32_t touchGT911hiccups;
+
+extern void touchPanelDeInit();
 extern bool touchPanelInit();
 
 struct TouchState touchPanelRead();