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#ifndef UART_H_
#define UART_H_
typedef struct
{
volatile uint32_t DATA;
volatile uint32_t STATUS;
volatile uint32_t CLOCK_DIVIDER;
volatile uint32_t FRAME_CONFIG;
} Uart_Reg;
enum UartParity {NONE = 0,EVEN = 1,ODD = 2};
enum UartStop {ONE = 0,TWO = 1};
typedef struct {
uint32_t dataLength;
enum UartParity parity;
enum UartStop stop;
uint32_t clockDivider;
} Uart_Config;
static uint32_t uart_writeAvailability(Uart_Reg *reg){
return (reg->STATUS >> 16) & 0xFF;
}
static uint32_t uart_readOccupancy(Uart_Reg *reg){
return reg->STATUS >> 24;
}
static void uart_write(Uart_Reg *reg, uint32_t data){
while(uart_writeAvailability(reg) == 0);
reg->DATA = data;
}
static void uart_applyConfig(Uart_Reg *reg, Uart_Config *config){
reg->CLOCK_DIVIDER = config->clockDivider;
reg->FRAME_CONFIG = ((config->dataLength-1) << 0) | (config->parity << 8) | (config->stop << 16);
}
#endif /* UART_H_ */
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