[net-next-2.6.git] / include / asm-arm / hardware / debug-8250.S

/*
 * linux/include/asm-arm/hardware/debug-8250.S
 *
 *  Copyright (C) 1994-1999 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/serial_reg.h>

		.macro	senduart,rd,rx
		strb	\rd, [\rx, #UART_TX << UART_SHIFT]
		.endm

		.macro	busyuart,rd,rx
1002:		ldrb	\rd, [\rx, #UART_LSR << UART_SHIFT]
		and	\rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
		teq	\rd, #UART_LSR_TEMT | UART_LSR_THRE
		bne	1002b
		.endm

		.macro	waituart,rd,rx
#ifdef FLOW_CONTROL
1001:		ldrb	\rd, [\rx, #UART_MSR << UART_SHIFT]
		tst	\rd, #UART_MSR_CTS
		beq	1001b
#endif
		.endm
Commit	Line	Data
268099e3	1	/*
f30c2269	2	* linux/include/asm-arm/hardware/debug-8250.S
268099e3 RK	3	*
	4	* Copyright (C) 1994-1999 Russell King
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10	#include <linux/serial_reg.h>
	11
	12	.macro senduart,rd,rx
	13	strb \rd, [\rx, #UART_TX << UART_SHIFT]
	14	.endm
	15
	16	.macro busyuart,rd,rx
	17	1002: ldrb \rd, [\rx, #UART_LSR << UART_SHIFT]
	18	and \rd, \rd, #UART_LSR_TEMT \| UART_LSR_THRE
	19	teq \rd, #UART_LSR_TEMT \| UART_LSR_THRE
	20	bne 1002b
	21	.endm
	22
	23	.macro waituart,rd,rx
	24	#ifdef FLOW_CONTROL
	25	1001: ldrb \rd, [\rx, #UART_MSR << UART_SHIFT]
	26	tst \rd, #UART_MSR_CTS
	27	beq 1001b
	28	#endif
	29	.endm