oldlatches.h
来自「基于组件方式开发操作系统的OSKIT源代码」· C头文件 代码 · 共 48 行
H
48 行
/* * linux/include/asm-arm/arch-arc/oldlatches.h * * Copyright (C) 1996 Russell King, Dave Gilbert * * Dummy oldlatches.h * * Modifications: * 04-04-1998 PJB/RMK Merged arc and a5k versions */#ifndef _ASM_ARCH_OLDLATCH_H#define _ASM_ARCH_OLDLATCH_H#include <linux/config.h>#if defined(CONFIG_ARCH_ARC)#define LATCHA_FDSEL0 (1<<0)#define LATCHA_FDSEL1 (1<<1)#define LATCHA_FDSEL2 (1<<2)#define LATCHA_FDSEL3 (1<<3)#define LATCHA_FDSELALL (0xf)#define LATCHA_SIDESEL (1<<4)#define LATCHA_MOTOR (1<<5)#define LATCHA_INUSE (1<<6)#define LATCHA_CHANGERST (1<<7)#define LATCHB_FDCDENSITY (1<<1)#define LATCHB_FDCRESET (1<<3)#define LATCHB_PRINTSTROBE (1<<4)/* newval=(oldval & mask)|newdata */void oldlatch_bupdate(unsigned char mask,unsigned char newdata);/* newval=(oldval & mask)|newdata */void oldlatch_aupdate(unsigned char mask,unsigned char newdata);void oldlatch_init(void);#elif defined(CONFIG_ARCH_A5K)#ifdef __need_oldlatches#error "Old latches not present in this (a5k) machine"#endif#endif#endif
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