Use Naze hardware revision when initialising mpu6050. The driver is not

not naze specific anymore.

src/main/drivers/accgyro_mpu6050.c

@@ -17,6 +17,7 @@
 
 #include <stdbool.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #include "platform.h"
 
@@ -157,6 +158,7 @@ INV_FSR_8G,
     INV_FSR_16G,
     NUM_ACCEL_FSR
 };
+
 static uint8_t mpuLowPassFilter = INV_FILTER_42HZ;
 static void mpu6050AccInit(void);
 static void mpu6050AccRead(int16_t *accData);
@@ -170,6 +172,21 @@ typedef enum {
 
 static mpu6050Resolution_e mpuAccelTrim;
 
+static mpu6050Config_t *config = NULL;
+
+void mpu6050GpioInit(void) {
+    gpio_config_t gpio;
+
+    if (config->gpioAPB2Peripherals) {
+        RCC_APB2PeriphClockCmd(config->gpioAPB2Peripherals, ENABLE);
+    }
+
+    gpio.pin = config->gpioPin;
+    gpio.speed = Speed_2MHz;
+    gpio.mode = Mode_IN_FLOATING;
+    gpioInit(config->gpioPort, &gpio);
+}
+
 static bool mpu6050Detect(void)
 {
     bool ack;
@@ -192,12 +209,14 @@ static bool mpu6050Detect(void)
     return true;
 }
 
-bool mpu6050AccDetect(acc_t *acc)
+bool mpu6050AccDetect(mpu6050Config_t *configToUse, acc_t *acc)
 {
     uint8_t readBuffer[6];
     uint8_t revision;
     uint8_t productId;
 
+    config = configToUse;
+
     if (!mpu6050Detect()) {
         return false;
     }
@@ -236,12 +255,15 @@ bool mpu6050AccDetect(acc_t *acc)
     return true;
 }
 
-bool mpu6050GyroDetect(gyro_t *gyro, uint16_t lpf)
+bool mpu6050GyroDetect(mpu6050Config_t *configToUse, gyro_t *gyro, uint16_t lpf)
 {
+    config = configToUse;
+
     if (!mpu6050Detect()) {
         return false;
     }
 
+
     gyro->init = mpu6050GyroInit;
     gyro->read = mpu6050GyroRead;
 
@@ -266,6 +288,11 @@ bool mpu6050GyroDetect(gyro_t *gyro, uint16_t lpf)
 
 static void mpu6050AccInit(void)
 {
+    if (config) {
+        mpu6050GpioInit();
+        config = NULL; // avoid re-initialisation of GPIO;
+    }
+
     switch (mpuAccelTrim) {
         case MPU_6050_HALF_RESOLUTION:
             acc_1G = 256 * 8;
@@ -288,16 +315,10 @@ static void mpu6050AccRead(int16_t *accData)
 
 static void mpu6050GyroInit(void)
 {
-    gpio_config_t gpio;
-
-    // MPU_INT output on rev4/5 hardware (PB13, PC13)
-    gpio.pin = Pin_13;
-    gpio.speed = Speed_2MHz;
-    gpio.mode = Mode_IN_FLOATING;
-    if (hse_value == 8000000)
-        gpioInit(GPIOB, &gpio);
-    else if (hse_value == 12000000)
-        gpioInit(GPIOC, &gpio);
+    if (config) {
+        mpu6050GpioInit();
+        config = NULL; // avoid re-initialisation of GPIO;
+    }
 
     i2cWrite(MPU6050_ADDRESS, MPU_RA_PWR_MGMT_1, 0x80);      //PWR_MGMT_1    -- DEVICE_RESET 1
     delay(100);

src/main/drivers/accgyro_mpu6050.h

@@ -17,7 +17,13 @@
 
 #pragma once
 
-bool mpu6050AccDetect(acc_t *acc);
-bool mpu6050GyroDetect(gyro_t *gyro, uint16_t lpf);
+typedef struct mpu6050Config_s {
+    uint32_t gpioAPB2Peripherals;
+    uint16_t gpioPin;
+    GPIO_TypeDef *gpioPort;
+} mpu6050Config_t;
+
+bool mpu6050AccDetect(mpu6050Config_t *config,acc_t *acc);
+bool mpu6050GyroDetect(mpu6050Config_t *config, gyro_t *gyro, uint16_t lpf);
 void mpu6050DmpLoop(void);
 void mpu6050DmpResetFifo(void);

src/main/sensors/initialisation.c

@@ -44,6 +44,7 @@
 #include "drivers/barometer_ms5611.h"
 #include "drivers/compass_hmc5883l.h"
 #include "drivers/sonar_hcsr04.h"
+#include "drivers/gpio.h"
 #include "drivers/system.h"
 
 #include "flight/flight.h"
@@ -66,6 +67,27 @@ extern gyro_t gyro;
 extern baro_t baro;
 extern acc_t acc;
 
+mpu6050Config_t *generateMPU6050Config(void)
+{
+#ifdef NAZE
+    static mpu6050Config_t nazeMPU6050Config;
+
+    // MPU_INT output on rev4/5 hardware (PB13, PC13)
+    nazeMPU6050Config.gpioPin = Pin_13;
+
+
+    if (hardwareRevision < NAZE32_REV5) {
+        nazeMPU6050Config.gpioAPB2Peripherals = RCC_APB2Periph_GPIOB;
+        nazeMPU6050Config.gpioPort = GPIOB;
+    } else {
+        nazeMPU6050Config.gpioAPB2Peripherals = RCC_APB2Periph_GPIOC;
+        nazeMPU6050Config.gpioPort = GPIOC;
+    }
+    return &nazeMPU6050Config;
+#endif
+    return NULL;
+}
+
 #ifdef USE_FAKE_GYRO
 static void fakeGyroInit(void) {}
 static void fakeGyroRead(int16_t *gyroData) {
@@ -105,7 +127,7 @@ bool detectGyro(uint16_t gyroLpf)
     gyroAlign = ALIGN_DEFAULT;
 
 #ifdef USE_GYRO_MPU6050
-    if (mpu6050GyroDetect(&gyro, gyroLpf)) {
+    if (mpu6050GyroDetect(generateMPU6050Config(), &gyro, gyroLpf)) {
 #ifdef NAZE
         gyroAlign = CW0_DEG;
 #endif
@@ -211,7 +233,7 @@ retry:
 #endif
 #ifdef USE_ACC_MPU6050
         case ACC_MPU6050: // MPU6050
-            if (mpu6050AccDetect(&acc)) {
+            if (mpu6050AccDetect(generateMPU6050Config(), &acc)) {
                 accHardware = ACC_MPU6050;
 #ifdef NAZE
                 accAlign = CW0_DEG;