projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| d4d3c7ad MM |
1 | /* This file is part of the program psim. |
| 2 | ||
| 3 | Copyright (C) 1994-1996, Andrew Cagney <[email protected]> | |
| 4 | ||
| 5 | This program is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU General Public License as published by | |
| 7 | the Free Software Foundation; either version 2 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with this program; if not, write to the Free Software | |
| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 18 | ||
| 19 | */ | |
| 20 | ||
| 21 | ||
| 22 | #ifndef _HW_IOBUS_C_ | |
| 23 | #define _HW_IOBUS_C_ | |
| 24 | ||
| 25 | #ifndef STATIC_INLINE_HW_IOBUS | |
| 26 | #define STATIC_INLINE_HW_IOBUS STATIC_INLINE | |
| 27 | #endif | |
| 28 | ||
| 29 | #include "device_table.h" | |
| 30 | ||
| 31 | ||
| 32 | /* Device: | |
| 33 | ||
| 34 | iobus@<address> - bus for attaching devices | |
| 35 | ||
| 36 | ||
| 37 | Description: | |
| 38 | ||
| 39 | IOBUS provides a simple `local' bus for attaching (hanging) | |
| 40 | programmed IO devices from. All child devices are mapped into this | |
| 41 | devices parent address space (after adjusting for the iobus's base | |
| 42 | address). | |
| 43 | ||
| 44 | ||
| 45 | Properties: | |
| 46 | ||
| 47 | None. | |
| 48 | ||
| 49 | */ | |
| 50 | ||
| 51 | static void | |
| 52 | hw_iobus_attach_address_callback(device *me, | |
| 53 | const char *name, | |
| 54 | attach_type type, | |
| 55 | int space, | |
| 56 | unsigned_word addr, | |
| 57 | unsigned nr_bytes, | |
| 58 | access_type access, | |
| 59 | device *who) /*callback/default*/ | |
| 60 | { | |
| 61 | unsigned_word hw_iobus_addr; | |
| 62 | /* sanity check */ | |
| 63 | if (space != 0) | |
| 64 | error("hw_iobus_attach_address_callback() no space for %s/%s\n", | |
| 65 | device_name(me), name); | |
| 66 | /* get the bus address */ | |
| 67 | if (device_unit_address(me)->nr_cells != 1) | |
| 68 | error("hw_iobus_attach_address_callback() invalid address for %s\n", | |
| 69 | device_name(me)); | |
| 70 | hw_iobus_addr = device_unit_address(me)->cells[0]; | |
| 71 | device_attach_address(device_parent(me), | |
| 72 | device_name(me), | |
| 73 | type, | |
| 74 | 0 /*space*/, | |
| 75 | hw_iobus_addr + addr, | |
| 76 | nr_bytes, | |
| 77 | access, | |
| 78 | who); | |
| 79 | } | |
| 80 | ||
| 81 | ||
| 82 | static device_callbacks const hw_iobus_callbacks = { | |
| 83 | { NULL, }, | |
| 84 | { hw_iobus_attach_address_callback, }, | |
| 85 | { NULL, }, /* IO */ | |
| 86 | { NULL, }, /* DMA */ | |
| 87 | { NULL, }, /* interrupt */ | |
| 88 | { generic_device_unit_decode, | |
| 89 | generic_device_unit_encode, } | |
| 90 | }; | |
| 91 | ||
| 92 | ||
| 93 | const device_descriptor hw_iobus_device_descriptor[] = { | |
| 94 | { "iobus", NULL, &hw_iobus_callbacks }, | |
| 95 | { NULL, }, | |
| 96 | }; | |
| 97 | ||
| 98 | #endif /* _HW_IOBUS_ */ |