示例#1
0
static void uart8250_tx_byte(unsigned base_port, unsigned char data)
{
	unsigned long int i = SINGLE_CHAR_TIMEOUT;
	while (i-- && !uart8250_can_tx_byte(base_port));
	outb(data, base_port + UART8250_TBR);
}
示例#2
0
文件： uart8250.c 项目： mytbk/coreboot 
static inline void uart8250_wait_to_tx_byte(unsigned base_port)
{
	unsigned long int i = SINGLE_CHAR_TIMEOUT;
	while (i-- && !uart8250_can_tx_byte(base_port));
}