Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | |
| 12 | #include <linux/config.h> |
| 13 | #if defined (CONFIG_SGI_IP27) |
| 14 | #include <asm/sn/sn0/hubio.h> |
| 15 | #endif |
| 16 | |
| 17 | |
| 18 | #define IIO_ITTE_BASE 0x400160 /* base of translation table entries */ |
| 19 | #define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin)) |
| 20 | |
| 21 | #define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */ |
| 22 | #define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1) |
| 23 | #define IIO_ITTE_OFFSET_SHIFT 0 |
| 24 | |
| 25 | #define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */ |
| 26 | #define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1) |
| 27 | #define IIO_ITTE_WIDGET_SHIFT 8 |
| 28 | |
| 29 | #define IIO_ITTE_IOSP 1 /* I/O Space bit */ |
| 30 | #define IIO_ITTE_IOSP_MASK 1 |
| 31 | #define IIO_ITTE_IOSP_SHIFT 12 |
| 32 | #define HUB_PIO_MAP_TO_MEM 0 |
| 33 | #define HUB_PIO_MAP_TO_IO 1 |
| 34 | |
| 35 | #define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */ |
| 36 | |
| 37 | #define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \ |
| 38 | REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \ |
| 39 | (((((addr) >> BWIN_SIZE_BITS) & \ |
| 40 | IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \ |
| 41 | (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \ |
| 42 | (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT))) |
| 43 | |
| 44 | #define IIO_ITTE_DISABLE(nasid, bigwin) \ |
| 45 | IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \ |
| 46 | (bigwin), IIO_ITTE_INVALID_WIDGET, 0) |
| 47 | |
| 48 | #define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin)) |
| 49 | |
| 50 | /* |
| 51 | * Macro which takes the widget number, and returns the |
| 52 | * IO PRB address of that widget. |
| 53 | * value _x is expected to be a widget number in the range |
| 54 | * 0, 8 - 0xF |
| 55 | */ |
| 56 | #define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \ |
| 57 | (_x) : \ |
| 58 | (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) ) |
| 59 | |
| 60 | #endif /* _ASM_SN_IO_H */ |