MD-UV3x0: using STM32 ADC driver

platform/targets/MD-UV3x0/hwconfig.c

@@ -24,9 +24,11 @@
 #include <pthread.h>
 #include <pinmap.h>
 #include <spi_stm32.h>
+#include <adc_stm32.h>
 
 
 static pthread_mutex_t c6000_mutex;
+static pthread_mutex_t adcMutex;
 
 /**
  * SPI bitbang function for HR_C6000 command interface (U_SPI).
@@ -73,3 +75,4 @@ static uint8_t spiC6000_func(const void *priv, uint8_t value)
 
 SPI_CUSTOM_DEVICE_DEFINE(c6000_spi, spiC6000_func, NULL, &c6000_mutex)
 SPI_STM32_DEVICE_DEFINE(nvm_spi, SPI1, NULL)
+ADC_STM32_DEVICE_DEFINE(adc1, ADC1, &adcMutex, 3300000)

platform/targets/MD-UV3x0/hwconfig.h

@@ -33,8 +33,16 @@ extern HR_C6000 C6000;
 extern "C" {
 #endif
 
+enum AdcChannel
+{
+    ADC_VOL_CH   = 0,
+    ADC_VBAT_CH  = 1,
+    ADC_MIC_CH   = 3,
+};
+
 extern const struct spiCustomDevice c6000_spi;
 extern const struct spiDevice nvm_spi;
+extern const struct Adc adc1;
 
 /* Device has a working real time clock */
 #define CONFIG_RTC

platform/targets/MD-UV3x0/platform.c

@@ -21,7 +21,7 @@
 #include <peripherals/gpio.h>
 #include <hwconfig.h>
 #include <string.h>
-#include <ADC1_MDx.h>
+#include <adc_stm32.h>
 #include <calibInfo_MDx.h>
 #include <interfaces/nvmem.h>
 #include <toneGenerator_MDx.h>
@@ -51,12 +51,7 @@ void platform_init()
     gpio_setPin(PWR_SW);
     #endif
 
-    /*
-     * Initialise ADC1, for vbat, RSSI, ...
-     * Configuration of corresponding GPIOs in analog input mode is done inside
-     * the driver.
-     */
-    adc1_init();
+    adcStm32_init(&adc1);
 
     memset(&hwInfo, 0x00, sizeof(hwInfo));
 
@@ -76,7 +71,7 @@ void platform_terminate()
     gpio_clearPin(RED_LED);
 
     /* Shut down all the modules */
-    adc1_terminate();
+    adcStm32_terminate(&adc1);
     nvm_terminate();
     toneGen_terminate();
     chSelector_terminate();
@@ -90,16 +85,16 @@ uint16_t platform_getVbat()
 {
     /*
      * Battery voltage is measured through an 1:3 voltage divider and
-     * adc1_getMeasurement returns a value in mV. Thus, to have effective
-     * battery voltage, multiply by three.
+     * adc1_getMeasurement returns a value in uV.
      */
-    return adc1_getMeasurement(ADC_VBAT_CH) * 3;
+    uint32_t vbat = adc_getVoltage(&adc1, ADC_VBAT_CH) * 3;
+    return vbat / 1000;
 }
 
 uint8_t platform_getMicLevel()
 {
     /* Value from ADC is 12 bit wide: shift right by four to get 0 - 255 */
-    return (adc1_getRawSample(ADC_VOX_CH) >> 4);
+    return (adc_getRawSample(&adc1, ADC_MIC_CH) >> 4);
 }
 
 uint8_t platform_getVolumeLevel()
@@ -110,7 +105,7 @@ uint8_t platform_getVolumeLevel()
      * lines with a breakpoint around 270mV.
      * Output value has range 0 - 255 with breakpoint at 150.
      */
-    uint16_t value = adc1_getMeasurement(ADC_VOL_CH);
+    uint16_t value = adc_getVoltage(&adc1, ADC_VOL_CH) / 1000;
     uint32_t output;
 
     if(value < 20)