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