/*
|
* This file is subject to the terms and conditions of the GNU General Public
|
* License. See the file "COPYING" in the main directory of this archive
|
* for more details.
|
*
|
* Copyright (C) 2000, 2003 Ralf Baechle
|
* Copyright (C) 2000 Silicon Graphics, Inc.
|
*/
|
#ifndef _ASM_SN_IO_H
|
#define _ASM_SN_IO_H
|
|
#if defined(CONFIG_SGI_IP27)
|
#include <asm/sn/sn0/hubio.h>
|
#endif
|
|
|
#define IIO_ITTE_BASE 0x400160 /* base of translation table entries */
|
#define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin))
|
|
#define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */
|
#define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1)
|
#define IIO_ITTE_OFFSET_SHIFT 0
|
|
#define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */
|
#define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1)
|
#define IIO_ITTE_WIDGET_SHIFT 8
|
|
#define IIO_ITTE_IOSP 1 /* I/O Space bit */
|
#define IIO_ITTE_IOSP_MASK 1
|
#define IIO_ITTE_IOSP_SHIFT 12
|
#define HUB_PIO_MAP_TO_MEM 0
|
#define HUB_PIO_MAP_TO_IO 1
|
|
#define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */
|
|
#define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \
|
REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \
|
(((((addr) >> BWIN_SIZE_BITS) & \
|
IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \
|
(io_or_mem << IIO_ITTE_IOSP_SHIFT) | \
|
(((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT)))
|
|
#define IIO_ITTE_DISABLE(nasid, bigwin) \
|
IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \
|
(bigwin), IIO_ITTE_INVALID_WIDGET, 0)
|
|
#define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_PTR((nasid), IIO_ITTE(bigwin))
|
|
/*
|
* Macro which takes the widget number, and returns the
|
* IO PRB address of that widget.
|
* value _x is expected to be a widget number in the range
|
* 0, 8 - 0xF
|
*/
|
#define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \
|
(_x) : \
|
(_x) - (HUB_WIDGET_ID_MIN-1)) << 3) )
|
|
#endif /* _ASM_SN_IO_H */
|
