board.c

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/**
 * @file boards/S105/board.c
 *
 * @date Jan 03, 2023
 * @author Andrey Gusakov, 2023
 */
 
#include "hal.h"
 
/*==========================================================================*/
/* Driver local definitions.                                                */
/*==========================================================================*/
 
/*==========================================================================*/
/* Driver exported variables.                                               */
/*==========================================================================*/
 
/*==========================================================================*/
/* Driver local variables and types.                                        */
/*==========================================================================*/
 
/**
 * @brief Type of STM32 GPIO port setup.
 */
typedef struct {
    uint32_t   moder;
    uint32_t   otyper;
    uint32_t   ospeedr;
    uint32_t   pupdr;
    uint32_t   odr;
    uint32_t   afrl;
    uint32_t   afrh;
} gpio_setup_t;
 
/**
 * @brief Type of STM32 GPIO initialization data.
 */
typedef struct {
    gpio_setup_t   PAData;
    gpio_setup_t   PBData;
    gpio_setup_t   PCData;
    gpio_setup_t   PDData;
    gpio_setup_t   PEData;
    gpio_setup_t   PFData;
    gpio_setup_t   PGData;
    gpio_setup_t   PHData;
    gpio_setup_t   PIData;
} gpio_config_t;
 
/**
 * @brief STM32 GPIO static initialization data.
 */
static const gpio_config_t gpio_default_config = {
    {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR,
     VAL_GPIOA_ODR,  VAL_GPIOA_AFRL, VAL_GPIOA_AFRH},
    {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR,
     VAL_GPIOB_ODR,  VAL_GPIOB_AFRL, VAL_GPIOB_AFRH},
    {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR,
     VAL_GPIOC_ODR,  VAL_GPIOC_AFRL, VAL_GPIOC_AFRH},
    {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR,
     VAL_GPIOD_ODR,  VAL_GPIOD_AFRL, VAL_GPIOD_AFRH},
    {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR,
     VAL_GPIOE_ODR,  VAL_GPIOE_AFRL, VAL_GPIOE_AFRH},
    {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR,
     VAL_GPIOF_ODR,  VAL_GPIOF_AFRL, VAL_GPIOF_AFRH},
    {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR,
     VAL_GPIOG_ODR,  VAL_GPIOG_AFRL, VAL_GPIOG_AFRH},
    {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR,
     VAL_GPIOH_ODR,  VAL_GPIOH_AFRL, VAL_GPIOH_AFRH},
    {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR,
     VAL_GPIOI_ODR,  VAL_GPIOI_AFRL, VAL_GPIOI_AFRH},
};
 
/*==========================================================================*/
/* Driver local functions.                                                  */
/*==========================================================================*/
 
static void gpio_init(stm32_gpio_t *gpiop, const gpio_setup_t *config) {
 
    gpiop->OTYPER  = config->otyper;
    gpiop->OSPEEDR = config->ospeedr;
    gpiop->PUPDR   = config->pupdr;
    gpiop->ODR     = config->odr;
    gpiop->AFRL    = config->afrl;
    gpiop->AFRH    = config->afrh;
    gpiop->MODER   = config->moder;
}
 
static void stm32_gpio_init(void) {
 
    /* Enabling GPIO-related clocks, the mask comes from the
     * registry header file.*/
    rccResetAHB1(STM32_GPIO_EN_MASK);
    rccEnableAHB1(STM32_GPIO_EN_MASK, true);
 
    /* Initializing all the defined GPIO ports.*/
    gpio_init(GPIOA, &gpio_default_config.PAData);
    gpio_init(GPIOB, &gpio_default_config.PBData);
    gpio_init(GPIOC, &gpio_default_config.PCData);
    gpio_init(GPIOD, &gpio_default_config.PDData);
    gpio_init(GPIOE, &gpio_default_config.PEData);
    gpio_init(GPIOF, &gpio_default_config.PFData);
    gpio_init(GPIOG, &gpio_default_config.PGData);
    gpio_init(GPIOH, &gpio_default_config.PHData);
    gpio_init(GPIOI, &gpio_default_config.PIData);
}
 
/*
 * Early initialization code.
 * This initialization must be performed just after stack setup and before
 * any other initialization.
 */
void __early_init(void)
{
    stm32_gpio_init();
    stm32_clock_init();
}
 
/*
 * Board-specific initialization code.
 */
void boardInit(void) {
}