31 lines
505 B
C
31 lines
505 B
C
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#include <arch/serial.h>
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#include <arch/ports.h>
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static int transmit_empty(int device)
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{
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return inportb(device + 5) & 0x20;
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}
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void serial_send_byte(int device, char out)
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{
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unsigned int _count = 0;
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while (!transmit_empty(device)) {
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_count++;
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}
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outportb(device, out);
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while (!transmit_empty(device)) {
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_count++;
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}
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}
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void serial_putchar(int port, char ch)
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{
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if (ch == '\n') {
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serial_send_byte(port, '\r');
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}
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serial_send_byte(port, ch);
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}
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