23 lines
517 B
C
23 lines
517 B
C
#include <sys/types.h>
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#include <machine/cpu.h>
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#include <io.h>
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#include "omap_serial.h"
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void omap3_ser_putc(char c)
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{
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int i;
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/* Wait until FIFO's empty */
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for (i = 0; i < 100000; i++)
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if (mmio_read(OMAP3_UART3_LSR) & OMAP3_LSR_THRE)
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break;
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/* Write character */
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mmio_write(OMAP3_UART3_THR, c);
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/* And wait again until FIFO's empty to prevent TTY from overwriting */
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for (i = 0; i < 100000; i++)
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if (mmio_read(OMAP3_UART3_LSR) & (OMAP3_LSR_THRE | OMAP3_LSR_TEMT))
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break;
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}
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