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1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2000, 2003 Ralf Baechle | |
7 | * Copyright (C) 2000 Silicon Graphics, Inc. | |
8 | */ | |
9 | #ifndef _ASM_SN_IO_H | |
10 | #define _ASM_SN_IO_H | |
11 | ||
49a89efb | 12 | #if defined(CONFIG_SGI_IP27) |
1da177e4 LT |
13 | #include <asm/sn/sn0/hubio.h> |
14 | #endif | |
15 | ||
16 | ||
17 | #define IIO_ITTE_BASE 0x400160 /* base of translation table entries */ | |
18 | #define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin)) | |
19 | ||
20 | #define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */ | |
21 | #define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1) | |
22 | #define IIO_ITTE_OFFSET_SHIFT 0 | |
23 | ||
24 | #define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */ | |
25 | #define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1) | |
26 | #define IIO_ITTE_WIDGET_SHIFT 8 | |
27 | ||
28 | #define IIO_ITTE_IOSP 1 /* I/O Space bit */ | |
29 | #define IIO_ITTE_IOSP_MASK 1 | |
30 | #define IIO_ITTE_IOSP_SHIFT 12 | |
31 | #define HUB_PIO_MAP_TO_MEM 0 | |
32 | #define HUB_PIO_MAP_TO_IO 1 | |
33 | ||
70342287 | 34 | #define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */ |
1da177e4 LT |
35 | |
36 | #define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \ | |
37 | REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \ | |
38 | (((((addr) >> BWIN_SIZE_BITS) & \ | |
39 | IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \ | |
40 | (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \ | |
41 | (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT))) | |
42 | ||
43 | #define IIO_ITTE_DISABLE(nasid, bigwin) \ | |
44 | IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \ | |
45 | (bigwin), IIO_ITTE_INVALID_WIDGET, 0) | |
46 | ||
47 | #define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin)) | |
48 | ||
49 | /* | |
50 | * Macro which takes the widget number, and returns the | |
51 | * IO PRB address of that widget. | |
52 | * value _x is expected to be a widget number in the range | |
53 | * 0, 8 - 0xF | |
54 | */ | |
70342287 | 55 | #define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \ |
1da177e4 LT |
56 | (_x) : \ |
57 | (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) ) | |
58 | ||
59 | #endif /* _ASM_SN_IO_H */ |