Revision 249
implementing uart. done with basic functions, still planning protocol
| uart.h | ||
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| 1 | 1 |
#ifndef UART_H_INCLUDED |
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#define UART_H_INCLUDED |
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#include "uart_macros.h" |
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#define COM1_ADDR 0x3F8 |
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#define COM2_ADDR 0x2F8 |
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#define COM1_IRQ 4 |
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#define COM2_IRQ 3 |
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#define COM1_VECTOR 0x0C |
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#define COM2_VECTOR 0x0B |
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typedef enum {
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uart_parity_none = 0x0, |
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uart_parity_odd = 0x1, |
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uart_parity_even = 0x3, |
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uart_parity_par1 = 0x5, |
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uart_parity_par0 = 0x7 |
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} uart_parity; |
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typedef struct {
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int base_addr ; |
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uint8_t lcr ; |
| ... | ... | |
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uint8_t dlm ; |
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uint8_t bits_per_char ; |
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uint8_t stop_bits ; |
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uint8_t parity ;
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uart_parity parity ;
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uint8_t break_control :1; |
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uint8_t dlab :1; |
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uint16_t divisor_latch ; |
| ... | ... | |
| 34 | 47 |
int uart_set_parity (int base_addr, uart_parity par ); |
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int uart_set_bit_rate (int base_addr, float bit_rate ); |
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int uart_get_char_poll (int base_addr, uint8_t *p); |
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int uart_send_char_poll (int base_addr, uint8_t c); |
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int uart_send_memory_poll(int base_addr, void *str, size_t n); |
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#endif //UART_H_INCLUDED |
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