077c84eb27
* No need for the atomically changed variables to be declared as volatile. * Drop support for atomically getting and setting unaligned data. * Introduce atomic_get_and_set[64]() which works the same as atomic_set[64]() used to. atomic_set[64]() does not return the previous value anymore.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
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* Copyright 2007, Haiku Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* JiSheng Zhang
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*/
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#ifndef _FW_GLUE_H
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#define _FW_GLUE_H
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#include <stdint.h>
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#include <dpc.h>
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#define device_printf(dev, a...) dprintf("firewire:" a)
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#define printf(a...) dprintf(a)
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#define KASSERT(cond,msg) do { \
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if (!cond) \
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panic msg; \
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} while(0)
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#ifndef howmany
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#define howmany(x, y) (((x)+((y)-1))/(y)) // x/y的上界
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#endif
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#define rounddown(x, y) (((x)/(y))*(y)) // 比x小，y的最大的倍数
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#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */ // 比x大，y的最小倍数
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#define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */
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#define powerof2(x) ((((x)-1)&(x))==0) // 是否是2的次方
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typedef uint32_t bus_addr_t;
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typedef uint32_t bus_size_t;
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#define atomic_readandclear_int(ptr) atomic_get_and_set((int32*)(ptr), 0)
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#define atomic_set_int(ptr, value) atomic_or((int32 *)(ptr), value)
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#define mtx_lock mutex_lock
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#define mtx_unlock mutex_unlock
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#define mtx_destroy mutex_destroy
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#define mtx_init(lockaddr, name, type, opts) mutex_init(lockaddr, name)
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#define wakeup(i) release_sem_etc(i->Sem, 0, B_RELEASE_IF_WAITING_ONLY | B_RELEASE_ALL)
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#define splfw() 0
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#define splx(s) (void)s
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#define hz 1000000LL
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#define DELAY(n) snooze(n)
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#define OWRITE(sc, offset, value) (*(volatile uint32 *)((char *)(sc->regAddr) + (offset)) = value)
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#define OREAD(sc, offset) (*(volatile uint32 *)((char *)(sc->regAddr) + (offset)))
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#define MAX_CARDS 4
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extern dpc_module_info *gDpc;
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#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
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#endif /*_FW_GLUE_H*/
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