1 /* 2 * Copyright 2007, Haiku Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * JiSheng Zhang 7 */ 8 #ifndef _FW_GLUE_H 9 #define _FW_GLUE_H 10 11 12 #include <dpc.h> 13 #include <stdint.h> 14 #include <strings.h> 15 16 17 #define device_printf(dev, a...) dprintf("firewire:" a) 18 #define printf(a...) dprintf(a) 19 #define KASSERT(cond,msg) do { \ 20 if (!cond) \ 21 panic msg; \ 22 } while(0) 23 24 #ifndef howmany 25 #define howmany(x, y) (((x)+((y)-1))/(y)) // x/y的上界 26 #endif 27 #define rounddown(x, y) (((x)/(y))*(y)) // 比x小，y的最大的倍数 28 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */ // 比x大，y的最小倍数 29 #define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */ 30 #define powerof2(x) ((((x)-1)&(x))==0) // 是否是2的次方 31 32 typedef uint32_t bus_addr_t; 33 typedef uint32_t bus_size_t; 34 35 #define atomic_readandclear_int(ptr) atomic_get_and_set((int32*)(ptr), 0) 36 #define atomic_set_int(ptr, value) atomic_or((int32 *)(ptr), value) 37 38 #define mtx_lock mutex_lock 39 #define mtx_unlock mutex_unlock 40 #define mtx_destroy mutex_destroy 41 #define mtx_init(lockaddr, name, type, opts) mutex_init(lockaddr, name) 42 43 #define wakeup(i) release_sem_etc(i->Sem, 0, B_RELEASE_IF_WAITING_ONLY | B_RELEASE_ALL) 44 45 #define splfw() 0 46 #define splx(s) (void)s 47 48 #define hz 1000000LL 49 50 #define DELAY(n) snooze(n) 51 52 #define OWRITE(sc, offset, value) (*(volatile uint32 *)((char *)(sc->regAddr) + (offset)) = value) 53 #define OREAD(sc, offset) (*(volatile uint32 *)((char *)(sc->regAddr) + (offset))) 54 55 #define MAX_CARDS 4 56 extern dpc_module_info *gDpc; 57 58 #define __offsetof(type, field) ((size_t)(&((type *)0)->field)) 59 60 #endif /*_FW_GLUE_H*/ 61