LCOM1920-T5G03

#ifndef UART_H_INCLUDED

#define UART_H_INCLUDED

#define COM1_ADDR           0x3F8

#define COM2_ADDR           0x2F8

#define COM1_IRQ            4

#define COM2_IRQ            3

#define COM1_VECTOR         0x0C

#define COM2_VECTOR         0x0B

typedef enum {

    uart_parity_none = 0x0,

    uart_parity_odd  = 0x1,

    uart_parity_even = 0x3,

    uart_parity_par1 = 0x5,

    uart_parity_par0 = 0x7

} uart_parity;

typedef struct {

    int     base_addr               ;

    uint8_t lcr                     ;

    uint8_t dll                     ;

    uint8_t dlm                     ;

    uint8_t bits_per_char           ;

    uint8_t stop_bits               ;

    uart_parity parity              ;

    uint8_t break_control         :1;

    uint8_t dlab                  :1;

    uint16_t divisor_latch          ;

    uint8_t ier                     ;

    uint8_t received_data_int     :1;

    uint8_t transmitter_empty_int :1;

    uint8_t receiver_line_stat_int:1;

    uint8_t modem_stat_int        :1;

} uart_config;

int uart_get_config(int base_addr, uart_config *config);

void uart_parse_config(uart_config *config);

void uart_print_config(uart_config config);

int uart_enable_divisor_latch (int base_addr);

int uart_disable_divisor_latch(int base_addr);

int uart_write_config          (int base_addr, uint8_t     config       );

int uart_set_bits_per_character(int base_addr, uint8_t     bits_per_char);

int uart_set_stop_bits         (int base_addr, uint8_t     stop         );

int uart_set_parity            (int base_addr, uart_parity par          );

int uart_set_bit_rate          (int base_addr, float       bit_rate     );

int uart_get_char_poll   (int base_addr, uint8_t *p);

int uart_send_char_poll  (int base_addr, uint8_t  c);

int uart_send_memory_poll(int base_addr, void *str, size_t n);

#endif //UART_H_INCLUDED