1/* Common hardware header file. 2 Copyright (C) 1998, 2007 Free Software Foundation, Inc. 3 Contributed by Andrew Cagney and Cygnus Support. 4 5This file is part of GDB, the GNU debugger. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 21#ifndef HW_MAIN 22#define HW_MAIN 23 24/* establish a type system */ 25#include "sim-basics.h" 26 27/* construct a hw device */ 28#include "hw-device.h" 29#include "hw-properties.h" 30#include "hw-events.h" 31#include "hw-alloc.h" 32#include "hw-instances.h" 33#include "hw-handles.h" 34#include "hw-ports.h" 35 36/* Description of a hardware device */ 37 38typedef void (hw_finish_method) 39 (struct hw *me); 40 41struct hw_descriptor { 42 const char *family; 43 hw_finish_method *to_finish; 44}; 45 46/* Helper functions to make the implementation of a device easier */ 47 48/* Go through the devices reg properties and look for those specifying 49 an address to attach various registers to */ 50 51void do_hw_attach_regs (struct hw *me); 52 53/* Perform a polling read on FD returning either the number of bytes 54 or a hw_io status code that indicates the reason for the read 55 failure */ 56 57enum { 58 HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */ 59}; 60 61typedef int (do_hw_poll_read_method) 62 (SIM_DESC sd, int, char *, int); 63 64int do_hw_poll_read 65(struct hw *me, 66 do_hw_poll_read_method *read, 67 int sim_io_fd, 68 void *buf, 69 unsigned size_of_buf); 70 71 72#endif 73