uncompress.h

来自「LINUX 2.6.17.4的源码」· C头文件 代码 · 共 38 行

/*
 * linux/include/asm-arm/arch-h720x/uncompress.h
 *
 * Copyright (C) 2001-2002 Jungjun Kim
 */

#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H

#include <asm/hardware.h>

#define LSR 	0x14
#define TEMPTY 	0x40

static inline void putc(int c)
{
	volatile unsigned char *p = (volatile unsigned char *)(IO_PHYS+0x20000);

	/* wait until transmit buffer is empty */
	while((p[LSR] & TEMPTY) == 0x0)
		barrier();

	/* write next character */
	*p = c;
}

static inline void flush(void)
{
}

/*
 * nothing to do
 */
#define arch_decomp_setup()
#define arch_decomp_wdog()

#endif