Beginnings of I2C object functions

SHAL/Include/Peripheral/I2C/Reg/SHAL_I2C_REG_F072xB.h

@@ -40,7 +40,7 @@ constexpr SHAL_I2C_Pair getI2CPair(const I2C_Pair pair){
     __builtin_unreachable();
 }
 
-constexpr SHAL_I2C_Enable_REG getI2CEnableReg(const I2C_Pair pair){
+constexpr SHAL_I2C_Enable_Reg getI2CEnableReg(const I2C_Pair pair){
     switch(pair){
         case I2C_Pair::SCL1B6_SDA1B7:
         case I2C_Pair::SCL1B8_SDA1B9:
@@ -56,4 +56,37 @@ constexpr SHAL_I2C_Enable_REG getI2CEnableReg(const I2C_Pair pair){
     __builtin_unreachable();
 }
 
+constexpr SHAL_I2C_Reset_Reg getI2CResetReg(const I2C_Pair pair){
+    switch(pair){
+        case I2C_Pair::SCL1B6_SDA1B7:
+        case I2C_Pair::SCL1B8_SDA1B9:
+            return {&RCC->APB1RSTR,RCC_APB1RSTR_I2C1RST};
+        case I2C_Pair::SCL2B10_SDA2B11:
+        case I2C_Pair::SCL2B13_SDA2B14:
+            return {&RCC->APB1RSTR,RCC_APB1RSTR_I2C2RST};
+        case I2C_Pair::NUM_PAIRS:
+        case I2C_Pair::INVALID:
+            assert(false);
+            return {nullptr, 0};
+    }
+    __builtin_unreachable();
+}
+
+//Gets all the bits in the I2C timer register, these values should rarely be manually set, but I wanted to support it anyway
+constexpr SHAL_I2C_Timing_Reg getI2CTimerReg(const I2C_Pair pair){
+    switch(pair){
+        case I2C_Pair::SCL1B6_SDA1B7:
+        case I2C_Pair::SCL1B8_SDA1B9:
+            return {&I2C1->TIMINGR,31,4,23,4,19,4,15,8,7,0};
+        case I2C_Pair::SCL2B10_SDA2B11:
+        case I2C_Pair::SCL2B13_SDA2B14:
+            return {&I2C2->TIMINGR,31,4,23,4,19,4,15,8,7,0};
+        case I2C_Pair::NUM_PAIRS:
+        case I2C_Pair::INVALID:
+            assert(false);
+            __builtin_unreachable();
+    }
+    __builtin_unreachable();
+}
+
 #endif //SHAL_I2C_REG_F072XB_H

SHAL/Include/Peripheral/I2C/Reg/SHAL_I2C_TYPES.h

@@ -17,9 +17,29 @@ struct SHAL_I2C_Pair {
     GPIO_Alternate_Function SDA_Mask;
 };
 
-struct SHAL_I2C_Enable_REG{
+struct SHAL_I2C_Enable_Reg{
     volatile uint32_t* reg;
     uint32_t mask;
 };
 
+struct SHAL_I2C_Reset_Reg{
+    volatile uint32_t* reg;
+    uint32_t mask;
+};
+
+//Manual values for I2C timer register
+struct SHAL_I2C_Timing_Reg{
+    volatile uint32_t* reg;
+    uint8_t prescaler_offset;
+    uint8_t prescaler_width;
+    uint8_t dataSetupTime_offset;
+    uint8_t dataSetupTime_width;
+    uint8_t dataHoldTime_offset;
+    uint8_t dataHoldTime_width;
+    uint8_t SCLHighPeriod_offset;
+    uint8_t SCLHighPeriod_width;
+    uint8_t SCLLowPeriod_offset;
+    uint8_t SCLLowPeriod_width;
+};
+
 #endif //SHMINGO_HAL_SHAL_I2C_TYPES_H

SHAL/Include/Peripheral/I2C/SHAL_I2C.h

@@ -15,6 +15,16 @@ class SHAL_I2C{
 
 public:
 
+    void init(I2C_Pair pair) volatile;
+
+    void masterTransmit();
+
+    //Manually set the clock configuration. Refer to your MCU's reference manual for examples
+    void setClockConfig(uint8_t prescaler, uint8_t dataSetupTime, uint8_t dataHoldTime, uint8_t SCLHighPeriod, uint8_t SCLLowPeriod);
+
+    //Set clock configuration based on a value calculated from STM32CubeMX, or other similar tools
+    void setClockConfig(uint32_t configuration);
+
 private:
 
     SHAL_I2C() = default;

SHAL/Src/Peripheral/I2C/SHAL_I2C.cpp

@@ -2,3 +2,9 @@
 // Created by Luca on 9/9/2025.
 //
 
+#include "SHAL_I2C.h"
+
+void SHAL_I2C::init() volatile {
+
+}
+