mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 23:14:31 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
128 lines
4.6 KiB
C
128 lines
4.6 KiB
C
/*******************************************************************************
|
|
*
|
|
* (c) 1999 by Computone Corporation
|
|
*
|
|
********************************************************************************
|
|
*
|
|
*
|
|
* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
|
|
* serial I/O controllers.
|
|
*
|
|
* DESCRIPTION: Defines, definitions and includes which are heavily dependent
|
|
* on O/S, host, compiler, etc. This file is tailored for:
|
|
* Linux v2.0.0 and later
|
|
* Gnu gcc c2.7.2
|
|
* 80x86 architecture
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#ifndef I2OS_H /* To prevent multiple includes */
|
|
#define I2OS_H 1
|
|
|
|
//-------------------------------------------------
|
|
// Required Includes
|
|
//-------------------------------------------------
|
|
|
|
#include "ip2types.h"
|
|
#include <asm/io.h> /* For inb, etc */
|
|
|
|
//------------------------------------
|
|
// Defines for I/O instructions:
|
|
//------------------------------------
|
|
|
|
#define INB(port) inb(port)
|
|
#define OUTB(port,value) outb((value),(port))
|
|
#define INW(port) inw(port)
|
|
#define OUTW(port,value) outw((value),(port))
|
|
#define OUTSW(port,addr,count) outsw((port),(addr),(((count)+1)/2))
|
|
#define OUTSB(port,addr,count) outsb((port),(addr),(((count)+1))&-2)
|
|
#define INSW(port,addr,count) insw((port),(addr),(((count)+1)/2))
|
|
#define INSB(port,addr,count) insb((port),(addr),(((count)+1))&-2)
|
|
|
|
//--------------------------------------------
|
|
// Interrupt control
|
|
//--------------------------------------------
|
|
|
|
#define LOCK_INIT(a) rwlock_init(a)
|
|
|
|
#define SAVE_AND_DISABLE_INTS(a,b) { \
|
|
/* printk("get_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
spin_lock_irqsave(a,b); \
|
|
}
|
|
|
|
#define RESTORE_INTS(a,b) { \
|
|
/* printk("rel_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
spin_unlock_irqrestore(a,b); \
|
|
}
|
|
|
|
#define READ_LOCK_IRQSAVE(a,b) { \
|
|
/* printk("get_read_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
read_lock_irqsave(a,b); \
|
|
}
|
|
|
|
#define READ_UNLOCK_IRQRESTORE(a,b) { \
|
|
/* printk("rel_read_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
read_unlock_irqrestore(a,b); \
|
|
}
|
|
|
|
#define WRITE_LOCK_IRQSAVE(a,b) { \
|
|
/* printk("get_write_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
write_lock_irqsave(a,b); \
|
|
}
|
|
|
|
#define WRITE_UNLOCK_IRQRESTORE(a,b) { \
|
|
/* printk("rel_write_lock: 0x%x,%4d,%s\n",(int)a,__LINE__,__FILE__);*/ \
|
|
write_unlock_irqrestore(a,b); \
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Hardware-delay loop
|
|
//
|
|
// Probably used in only one place (see i2ellis.c) but this helps keep things
|
|
// together. Note we have unwound the IN instructions. On machines with a
|
|
// reasonable cache, the eight instructions (1 byte each) should fit in cache
|
|
// nicely, and on un-cached machines, the code-fetch would tend not to dominate.
|
|
// Note that cx is shifted so that "count" still reflects the total number of
|
|
// iterations assuming no unwinding.
|
|
//------------------------------------------------------------------------------
|
|
|
|
//#define DELAY1MS(port,count,label)
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Macros to switch to a new stack, saving stack pointers, and to restore the
|
|
// old stack (Used, for example, in i2lib.c) "heap" is the address of some
|
|
// buffer which will become the new stack (working down from highest address).
|
|
// The two words at the two lowest addresses in this stack are for storing the
|
|
// SS and SP.
|
|
//------------------------------------------------------------------------------
|
|
|
|
//#define TO_NEW_STACK(heap,size)
|
|
//#define TO_OLD_STACK(heap)
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Macros to save the original IRQ vectors and masks, and to patch in new ones.
|
|
//------------------------------------------------------------------------------
|
|
|
|
//#define SAVE_IRQ_MASKS(dest)
|
|
//#define WRITE_IRQ_MASKS(src)
|
|
//#define SAVE_IRQ_VECTOR(value,dest)
|
|
//#define WRITE_IRQ_VECTOR(value,src)
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Macro to copy data from one far pointer to another.
|
|
//------------------------------------------------------------------------------
|
|
|
|
#define I2_MOVE_DATA(fpSource,fpDest,count) memmove(fpDest,fpSource,count);
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Macros to issue eoi's to host interrupt control (IBM AT 8259-style).
|
|
//------------------------------------------------------------------------------
|
|
|
|
//#define MASTER_EOI
|
|
//#define SLAVE_EOI
|
|
|
|
#endif /* I2OS_H */
|
|
|
|
|