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- /*
- * 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 */
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