Merge pull request #466 from blckmn/development

Removing some more target / platform specific code out of main.c and …

src/main/drivers/system.c

@@ -35,12 +35,7 @@
 #define EXTI_CALLBACK_HANDLER_COUNT 1
 #endif
 
-typedef struct extiCallbackHandlerConfig_s {
+extiCallbackHandlerConfig_t extiHandlerConfigs[EXTI_CALLBACK_HANDLER_COUNT];
-    IRQn_Type irqn;
-    extiCallbackHandlerFunc* fn;
-} extiCallbackHandlerConfig_t;
-
-static extiCallbackHandlerConfig_t extiHandlerConfigs[EXTI_CALLBACK_HANDLER_COUNT];
 
 void registerExtiCallbackHandler(IRQn_Type irqn, extiCallbackHandlerFunc *fn)
 {
@@ -62,7 +57,7 @@ static volatile uint32_t sysTickUptime = 0;
 // cached value of RCC->CSR
 uint32_t cachedRccCsrValue;
 
-static void cycleCounterInit(void)
+void cycleCounterInit(void)
 {
     RCC_ClocksTypeDef clocks;
     RCC_GetClocksFreq(&clocks);
@@ -97,59 +92,6 @@ uint32_t millis(void)
     return sysTickUptime;
 }
 
-void systemInit(void)
-{
-#ifdef CC3D
-    /* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
-    extern void *isr_vector_table_base;
-
-    NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
-#endif
-    // Configure NVIC preempt/priority groups
-    NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
-
-#ifdef STM32F10X
-    // Turn on clocks for stuff we use
-    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
-#endif
-
-    // cache RCC->CSR value to use it in isMPUSoftreset() and others
-    cachedRccCsrValue = RCC->CSR;
-#ifdef STM32F4
-    /* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
-    extern void *isr_vector_table_base;
-    NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
-    RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, DISABLE);
-#endif
-    RCC_ClearFlag();
-
-    enableGPIOPowerUsageAndNoiseReductions();
-
-#ifdef STM32F10X
-    // Set USART1 TX (PA9) to output and high state to prevent a rs232 break condition on reset.
-    // See issue https://github.com/cleanflight/cleanflight/issues/1433
-    gpio_config_t gpio;
-
-    gpio.mode = Mode_Out_PP;
-    gpio.speed = Speed_2MHz;
-    gpio.pin = Pin_9;
-    digitalHi(GPIOA, gpio.pin);
-    gpioInit(GPIOA, &gpio);
-
-    // Turn off JTAG port 'cause we're using the GPIO for leds
-#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW            (0x2 << 24)
-    AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
-#endif
-
-    // Init cycle counter
-    cycleCounterInit();
-
-
-    memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
-    // SysTick
-    SysTick_Config(SystemCoreClock / 1000);
-}
-
 #if 1
 void delayMicroseconds(uint32_t us)
 {

src/main/drivers/system.h

@@ -41,13 +41,26 @@ void failureMode(failureMode_e mode);
 void systemReset(void);
 void systemResetToBootloader(void);
 bool isMPUSoftReset(void);
+void cycleCounterInit(void);
 
 void enableGPIOPowerUsageAndNoiseReductions(void);
 // current crystal frequency - 8 or 12MHz
+
 extern uint32_t hse_value;
 
 typedef void extiCallbackHandlerFunc(void);
 
+typedef struct extiCallbackHandlerConfig_s {
+    IRQn_Type irqn;
+    extiCallbackHandlerFunc* fn;
+} extiCallbackHandlerConfig_t;
+
+#ifndef EXTI_CALLBACK_HANDLER_COUNT
+#define EXTI_CALLBACK_HANDLER_COUNT 1
+#endif
+
+extern extiCallbackHandlerConfig_t extiHandlerConfigs[EXTI_CALLBACK_HANDLER_COUNT];
+
 void registerExtiCallbackHandler(IRQn_Type irqn, extiCallbackHandlerFunc *fn);
 void unregisterExtiCallbackHandler(IRQn_Type irqn, extiCallbackHandlerFunc *fn);
 

src/main/drivers/system_stm32f10x.c

@@ -15,6 +15,7 @@
  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -22,10 +23,14 @@
 #include "platform.h"
 
 #include "gpio.h"
+#include "nvic.h"
 #include "system.h"
 
 #define AIRCR_VECTKEY_MASK    ((uint32_t)0x05FA0000)
 
+// from system_stm32f10x.c
+void SetSysClock(bool overclock);
+
 void systemReset(void)
 {
     // Generate system reset
@@ -40,7 +45,6 @@ void systemResetToBootloader(void) {
     systemReset();
 }
 
-
 void enableGPIOPowerUsageAndNoiseReductions(void)
 {
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);
@@ -61,3 +65,48 @@ bool isMPUSoftReset(void)
     else
         return false;
 }
+
+void systemInit(void)
+{
+    SetSysClock(false);
+    
+#ifdef CC3D
+    /* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
+    extern void *isr_vector_table_base;
+
+    NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
+#endif
+    // Configure NVIC preempt/priority groups
+    NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
+
+    // Turn on clocks for stuff we use
+    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+
+    // cache RCC->CSR value to use it in isMPUSoftreset() and others
+    cachedRccCsrValue = RCC->CSR;
+    RCC_ClearFlag();
+
+    enableGPIOPowerUsageAndNoiseReductions();
+
+    // Set USART1 TX (PA9) to output and high state to prevent a rs232 break condition on reset.
+    // See issue https://github.com/cleanflight/cleanflight/issues/1433
+    gpio_config_t gpio;
+
+    gpio.mode = Mode_Out_PP;
+    gpio.speed = Speed_2MHz;
+    gpio.pin = Pin_9;
+    digitalHi(GPIOA, gpio.pin);
+    gpioInit(GPIOA, &gpio);
+
+    // Turn off JTAG port 'cause we're using the GPIO for leds
+#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW            (0x2 << 24)
+    AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
+
+    // Init cycle counter
+    cycleCounterInit();
+
+    memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
+    // SysTick
+    SysTick_Config(SystemCoreClock / 1000);
+}
+

src/main/drivers/system_stm32f30x.c

@@ -15,6 +15,7 @@
  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -22,9 +23,11 @@
 #include "platform.h"
 
 #include "gpio.h"
+#include "nvic.h"
 #include "system.h"
 
 #define AIRCR_VECTKEY_MASK    ((uint32_t)0x05FA0000)
+void SetSysClock();
 
 void systemReset(void)
 {
@@ -76,3 +79,26 @@ bool isMPUSoftReset(void)
     else
         return false;
 }
+
+void systemInit(void)
+{
+    // Enable FPU
+    SCB->CPACR = (0x3 << (10 * 2)) | (0x3 << (11 * 2));
+    SetSysClock();
+
+    // Configure NVIC preempt/priority groups
+    NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
+
+    // cache RCC->CSR value to use it in isMPUSoftreset() and others
+    cachedRccCsrValue = RCC->CSR;
+    RCC_ClearFlag();
+
+    enableGPIOPowerUsageAndNoiseReductions();
+
+    // Init cycle counter
+    cycleCounterInit();
+
+    memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
+    // SysTick
+    SysTick_Config(SystemCoreClock / 1000);
+}

src/main/drivers/system_stm32f4xx.c

@@ -15,6 +15,7 @@
  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -22,6 +23,8 @@
 #include "platform.h"
 
 #include "gpio.h"
+#include "nvic.h"
+#include "system.h"
 
 
 #include "exti.h"
@@ -35,6 +38,7 @@
 
 
 #define AIRCR_VECTKEY_MASK    ((uint32_t)0x05FA0000)
+void SetSysClock(void);
 
 void systemReset(void)
 {
@@ -81,11 +85,9 @@ void enableGPIOPowerUsageAndNoiseReductions(void)
 		0, ENABLE
     );
 
-    RCC_AHB2PeriphClockCmd(
+    RCC_AHB2PeriphClockCmd(0, ENABLE);
-        0, ENABLE);
 #ifdef STM32F40_41xxx
-    RCC_AHB3PeriphClockCmd(
+    RCC_AHB3PeriphClockCmd(0, ENABLE);
-        0, ENABLE);
 #endif
     RCC_APB1PeriphClockCmd(
         RCC_APB1Periph_TIM2 |
@@ -165,4 +167,30 @@ bool isMPUSoftReset(void)
         return false;
 }
 
+void systemInit(void)
+{
+    SetSysClock();
+
+    // Configure NVIC preempt/priority groups
+	NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
+
+    // cache RCC->CSR value to use it in isMPUSoftreset() and others
+	cachedRccCsrValue = RCC->CSR;
+
+    /* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
+	extern void *isr_vector_table_base;
+	NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
+	RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, DISABLE);
+    
+	RCC_ClearFlag();
+
+	enableGPIOPowerUsageAndNoiseReductions();
+
+    // Init cycle counter
+	cycleCounterInit();
+
+	memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
+	// SysTick
+	SysTick_Config(SystemCoreClock / 1000);
+}
 

src/main/main.c

@@ -135,13 +135,6 @@ void spektrumBind(rxConfig_t *rxConfig);
 const sonarHardware_t *sonarGetHardwareConfiguration(batteryConfig_t *batteryConfig);
 void sonarInit(const sonarHardware_t *sonarHardware);
 
-#ifdef STM32F10X
-// from system_stm32f10x.c
-void SetSysClock(bool overclock);
-#else 
-void SetSysClock(void);
-#endif
-
 typedef enum {
     SYSTEM_STATE_INITIALISING   = 0,
     SYSTEM_STATE_CONFIG_LOADED  = (1 << 0),
@@ -167,23 +160,12 @@ void init(void)
 
     systemState |= SYSTEM_STATE_CONFIG_LOADED;
 
-#ifdef STM32F3
+    systemInit();
-    // start fpu
-    SCB->CPACR = (0x3 << (10*2)) | (0x3 << (11*2));
-    SetSysClock();
-#endif
-#ifdef STM32F1
-    // Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers
-    // Configure the Flash Latency cycles and enable prefetch buffer
-    SetSysClock(0); // TODO - Remove from config in the future
-#endif
-#ifdef STM32F4
-    SetSysClock();
-#endif
 
     //i2cSetOverclock(masterConfig.i2c_overclock);
 
-    systemInit();
+    // initialize IO (needed for all IO operations)
+	IOInitGlobal();
     
     debugMode = masterConfig.debug_mode;
 
@@ -194,9 +176,6 @@ void init(void)
     // Latch active features to be used for feature() in the remainder of init().
     latchActiveFeatures();
 
-    // initialize IO (needed for all IO operations)
-    IOInitGlobal();
-
 #ifdef ALIENFLIGHTF3
     if (hardwareRevision == AFF3_REV_1) {
         ledInit(false);