feat(hrs-v12): Support for HelloRadioSky V12

radio/src/CMakeLists.txt

@@ -1,7 +1,7 @@
 include(CMakeForceCompiler)
 include(Bitmaps)
 
-set(PCB_TYPES X9LITE X9LITES X7 XLITE XLITES X9D X9D+ X9E X10 X12S PL18 T15PRO ST16 PA01 TX15 TX16SMK3)
+set(PCB_TYPES X9LITE X9LITES X7 XLITE XLITES X9D X9D+ X9E X10 X12S PL18 T15PRO ST16 PA01 TX15 TX16SMK3 V12)
 set(RADIO_LANGUAGES CN CZ DA DE EN ES FI FR HE HU IT JP KO NL PL PT RU SE SK TW UA)
 set(TTS_LANGUAGES CN CZ DA DE EN ES FI FR HE HU IT JP KO NL PL PT RU SE SK TW UA)
 
@@ -97,6 +97,8 @@ elseif(PCB STREQUAL ST16)
   include(targets/st16/CMakeLists.txt)
 elseif(PCB STREQUAL PA01)
   include(targets/pa01/CMakeLists.txt)
+elseif(PCB STREQUAL V12)
+  include(targets/v12/CMakeLists.txt)
 elseif(PCB STREQUAL TX15)
   include(targets/tx15/CMakeLists.txt)
 elseif(PCB STREQUAL TX16SMK3)

radio/src/boards/generic_stm32/i2c_bus.cpp

@@ -58,6 +58,16 @@ static const stm32_i2c_hw_def_t _i2c2 = {
 };
 #endif
 
+#if defined(I2C_B4)
+static const stm32_i2c_hw_def_t _i2c4 = {
+  .I2Cx = I2C_B4,
+  .SCL_GPIO = (gpio_t)I2C_B4_SCL_GPIO,
+  .SDA_GPIO = (gpio_t)I2C_B4_SDA_GPIO,
+  .GPIO_AF = I2C_B4_GPIO_AF,
+  .set_pwr = nullptr,
+};
+#endif
+
 int i2c_init(etx_i2c_bus_t bus)
 {
 #if defined(I2C_B1)
@@ -72,6 +82,12 @@ int i2c_init(etx_i2c_bus_t bus)
   }
 #endif
 
+#if defined(I2C_B4)
+  if (bus == I2C_Bus_4) {
+    return stm32_i2c_init(I2C_Bus_4, I2C_B4_CLK_RATE, &_i2c4);
+  }
+#endif
+
   return -1;
 }
 
@@ -89,6 +105,12 @@ int i2c_deinit(etx_i2c_bus_t bus)
   }
 #endif
 
+#if defined(I2C_B4)
+  if (bus == I2C_Bus_4) {
+    return stm32_i2c_deinit(I2C_Bus_4);
+  }
+#endif
+
   return -1;
 }
 

radio/src/boards/helloradio-h750/backlight_driver.cpp

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   opentx - https://github.com/opentx/opentx
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "hal/gpio.h"
+#include "stm32_gpio.h"
+#include "stm32_timer.h"
+#include "stm32_pulse_driver.h"
+
+#include "edgetx_types.h"
+#include "board.h"
+
+#include "globals.h"
+
+static const stm32_pulse_timer_t _bl_timer = {
+  .GPIO = (gpio_t)BACKLIGHT_GPIO,
+  .GPIO_Alternate = BACKLIGHT_GPIO_AF,
+  .TIMx = BACKLIGHT_TIMER,
+  .TIM_Freq = BACKLIGHT_TIMER_FREQ,
+  .TIM_Channel = BACKLIGHT_TIMER_CHANNEL,
+  .TIM_IRQn = (IRQn_Type)-1,
+  .DMAx = nullptr,
+  .DMA_Stream = 0,
+  .DMA_Channel = 0,
+  .DMA_IRQn = (IRQn_Type)-1,
+  .DMA_TC_CallbackPtr = nullptr,
+};
+
+void backlightLowInit()
+{
+  gpio_init(BACKLIGHT_GPIO, GPIO_OUT, GPIO_PIN_SPEED_LOW);
+  gpio_clear(BACKLIGHT_GPIO);
+}
+
+void backlightInit()
+{
+  stm32_pulse_init(&_bl_timer, 10000);
+  stm32_pulse_config_output(&_bl_timer, true, LL_TIM_OCMODE_PWM1, 100);
+  LL_TIM_SetAutoReload(_bl_timer.TIMx, 100);
+  LL_TIM_EnableCounter(_bl_timer.TIMx);
+}
+
+uint8_t lastDutyCycle = 0;
+
+void backlightEnable(uint8_t dutyCycle)
+{
+  stm32_pulse_set_cmp_val(&_bl_timer, dutyCycle);
+
+  // TODO: removed until QSPI & LCD SPI are split
+  // if(!dutyCycle) {
+  //   //experimental to turn off LCD when no backlight
+  //   // if(lcdOffFunction) lcdOffFunction();
+  // }
+  // else if(!lastDutyCycle) {
+  //   // if(lcdOnFunction) lcdOnFunction();
+  //   // else lcdInit();
+  // }
+
+  // lastDutyCycle = dutyCycle;
+}
+
+void lcdOff() {
+  backlightEnable(0);
+}
+
+void lcdOn(){
+  // if(lcdOnFunction) lcdOnFunction();
+  // else lcdInit();
+  backlightEnable(BACKLIGHT_LEVEL_MAX);
+}
+
+bool boardBacklightOn;
+
+bool isBacklightEnabled()
+{
+  return boardBacklightOn;
+}