| 1 | /* |
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| 2 | * This file is subject to the terms and conditions of the GNU General Public |
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| 3 | * License. See the file "COPYING" in the main directory of this archive |
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| 4 | * for more details. |
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| 5 | * |
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| 6 | * Copyright (C) 2000, 2003 Ralf Baechle |
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| 7 | * Copyright (C) 2000 Silicon Graphics, Inc. |
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| 8 | */ |
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| 9 | #ifndef _ASM_SN_IO_H |
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| 10 | #define _ASM_SN_IO_H |
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| 11 | |
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| 12 | #if defined (CONFIG_SGI_IP27) |
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| 13 | #include <asm/sn/sn0/hubio.h> |
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| 14 | #endif |
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| 15 | |
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| 16 | |
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| 17 | #define IIO_ITTE_BASE 0x400160 /* base of translation table entries */ |
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| 18 | #define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin)) |
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| 19 | |
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| 20 | #define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */ |
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| 21 | #define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1) |
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| 22 | #define IIO_ITTE_OFFSET_SHIFT 0 |
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| 23 | |
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| 24 | #define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */ |
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| 25 | #define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1) |
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| 26 | #define IIO_ITTE_WIDGET_SHIFT 8 |
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| 27 | |
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| 28 | #define IIO_ITTE_IOSP 1 /* I/O Space bit */ |
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| 29 | #define IIO_ITTE_IOSP_MASK 1 |
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| 30 | #define IIO_ITTE_IOSP_SHIFT 12 |
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| 31 | #define HUB_PIO_MAP_TO_MEM 0 |
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| 32 | #define HUB_PIO_MAP_TO_IO 1 |
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| 33 | |
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| 34 | #define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */ |
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| 35 | |
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| 36 | #define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \ |
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| 37 | REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \ |
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| 38 | (((((addr) >> BWIN_SIZE_BITS) & \ |
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| 39 | IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \ |
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| 40 | (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \ |
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| 41 | (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT))) |
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| 42 | |
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| 43 | #define IIO_ITTE_DISABLE(nasid, bigwin) \ |
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| 44 | IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \ |
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| 45 | (bigwin), IIO_ITTE_INVALID_WIDGET, 0) |
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| 46 | |
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| 47 | #define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin)) |
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| 48 | |
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| 49 | /* |
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| 50 | * Macro which takes the widget number, and returns the |
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| 51 | * IO PRB address of that widget. |
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| 52 | * value _x is expected to be a widget number in the range |
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| 53 | * 0, 8 - 0xF |
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| 54 | */ |
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| 55 | #define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \ |
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| 56 | (_x) : \ |
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| 57 | (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) ) |
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| 58 | |
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| 59 | #endif /* _ASM_SN_IO_H */ |
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