MD9600: Enable Screen Backlight

meson.build

@@ -389,6 +389,7 @@ md9600_src = ['platform/targets/MD-9600/platform.c',
               'platform/targets/MD-9600/hwconfig.c',
               'platform/drivers/display/ST7567_MD9600.c',
               'platform/drivers/keyboard/keyboard_MD9600.c',
+              'platform/drivers/backlight/backlight_MDx.c',
               'platform/drivers/chSelector/chSelector_MD9600.c',
               'platform/drivers/baseband/radio_MD9600.cpp',
               'platform/drivers/CPS/cps_io_native_MD9600.c']

platform/drivers/display/ST7567_MD9600.c

@@ -143,7 +143,8 @@ void display_setContrast(uint8_t contrast)
     spi_release(&spi2);
 }
 
-void display_setBacklightLevel(uint8_t level)
-{
-    (void) level;
-}
+/*
+ * Function implemented in backlight_MDx driver
+ *
+ * void display_setBacklightLevel(uint8_t level)
+ */

platform/targets/MD-9600/hwconfig.h

@@ -57,6 +57,9 @@ extern const struct Adc adc1;
 #define CONFIG_SCREEN_CONTRAST
 #define CONFIG_DEFAULT_CONTRAST 91
 
+/* Screen has adjustable brightness */
+#define CONFIG_SCREEN_BRIGHTNESS
+
 /* Screen pixel format */
 #define CONFIG_PIX_FMT_BW
 

platform/targets/MD-9600/platform.c

@@ -22,6 +22,7 @@
 #include <interfaces/nvmem.h>
 #include <interfaces/platform.h>
 #include <interfaces/delays.h>
+#include <backlight.h>
 #include <hwconfig.h>
 #include <string.h>
 #include <adc_stm32.h>
@@ -75,6 +76,7 @@ void platform_init()
     nvm_init();                      /* Initialise non volatile memory manager */
     toneGen_init();                  /* Initialise tone generator              */
     rtc_init();                      /* Initialise RTC                         */
+    backlight_init();                /* Initialize Backlight                   */
     chSelector_init();               /* Initialise channel selector handler    */
     audio_init();                    /* Initialise audio management module     */
 }