Creation of Cybook 2416 (actually Gen4) repository

drivers/char/ip2/i2os.h

@@ -0,0 +1,127 @@
+/*******************************************************************************
+*
+*   (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 */
+
+