#ifndef LL_RCC_H
#define LL_RCC_H
#include <stm32u5xx.h>

/// @brief enable clock for the given timer
/// @param[in] tim: timer instance
static inline void rcc_enable_timer_clock(TIM_TypeDef *tim) {
    if (tim == TIM1) SET_BIT(RCC->APB2ENR, RCC_APB2ENR_TIM1EN);
    else if (tim == TIM2) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_TIM2EN);
    else if (tim == TIM3) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_TIM3EN);

}

/// @brief enable clock for the given uart
/// @param[in] uart: uart instance
static inline void rcc_enable_uart_clock(USART_TypeDef *uart) {
    if (uart == USART1) SET_BIT(RCC->APB2ENR, RCC_APB2ENR_USART1EN);
    else if (uart == USART2) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_USART2EN);
    else if (uart == USART3) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_USART3EN);
    else if (uart == UART4) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_UART4EN);
    else if (uart == UART5) SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_UART5EN);
}
static inline void rcc_enable_adc_clock(ADC_TypeDef *adc) {
    if (adc == ADC1) RCC->AHB2ENR1 |= RCC_AHB2ENR1_ADC12EN;
}


typedef enum {
    PCLK1,  ///< Peripheral clock 1 (APB1)
    SYSCLK, ///< System clock
    HSI16,  ///< Internal 16 MHz RC oscillator
    MSIK,   ///< Internal MSI clock
} I2C_CLOCKS; ///< I2C clock sources source

/// @brief enable and select clock for I2C module
/// @param[in] i2c: I2C module - I2C1, I2C2, I2C3
/// @param[in] clock: clock source: PCLK1, SYSCLK, HSI16, MSIK
static inline void rcc_enable_i2c_clock(I2C_TypeDef *i2c,
                                        I2C_CLOCKS clock) {
    if (i2c == I2C1) {
        SET_BIT(RCC->CCIPR1, clock << RCC_CCIPR1_I2C1SEL_Pos);
        SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_I2C1EN);
    } else if (i2c == I2C2) {
        SET_BIT(RCC->APB1ENR1, RCC_APB1ENR1_I2C2EN);
        SET_BIT(RCC->CCIPR1, clock << RCC_CCIPR1_I2C2SEL_Pos);
    } else if (i2c == I2C3) {
        SET_BIT(RCC->CCIPR3, clock << RCC_CCIPR3_I2C3SEL_Pos);
        SET_BIT(RCC->APB3ENR, RCC_APB3ENR_I2C3EN);
    }
}

/// @brief enable dma clock
/// @param[in] dma: dma instance
static inline void rcc_enable_dma_clock(DMA_TypeDef *dma) {
    if (dma == GPDMA1) SET_BIT(RCC->AHB1ENR, RCC_AHB1ENR_GPDMA1EN);
}

/// @brief enable clock for the given dcmi
/// @param[in] dcmi: dcmi instance
static inline void rcc_enable_dcmi_clock(DCMI_TypeDef *dcmi) {
    if (dcmi == DCMI) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_DCMI_PSSIEN);
}

/// @brief enable clock for the given port
/// @param[in] gpio: port instance
static inline void rcc_enable_gpio_clock(GPIO_TypeDef *gpio) {
    if (gpio == GPIOA) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOAEN);
    else if (gpio == GPIOB) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOBEN);
    else if (gpio == GPIOC) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOCEN);
    else if (gpio == GPIOD) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIODEN);
    else if (gpio == GPIOE) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOEEN);
    else if (gpio == GPIOF) SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOFEN);
    else if (gpio == GPIOG) {
        SET_BIT(RCC->AHB2ENR1, RCC_AHB2ENR1_GPIOGEN);
        SET_BIT(PWR->SVMCR, PWR_SVMCR_IO2SV);
    }
}

#endif //LL_RCC_H