1/* Common hardware header file. 2 Copyright (C) 1998, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Andrew Cagney and Cygnus Support. 5 6This file is part of GDB, the GNU debugger. 7 8This program is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 3 of the License, or 11(at your option) any later version. 12 13This program is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with this program. If not, see <http://www.gnu.org/licenses/>. */ 20 21 22#ifndef HW_MAIN 23#define HW_MAIN 24 25/* establish a type system */ 26#include "sim-basics.h" 27 28/* construct a hw device */ 29#include "hw-device.h" 30#include "hw-properties.h" 31#include "hw-events.h" 32#include "hw-alloc.h" 33#include "hw-instances.h" 34#include "hw-handles.h" 35#include "hw-ports.h" 36 37/* Description of a hardware device */ 38 39typedef void (hw_finish_method) 40 (struct hw *me); 41 42struct hw_descriptor 43{ 44 const char *family; 45 hw_finish_method *to_finish; 46}; 47 48/* Helper functions to make the implementation of a device easier */ 49 50/* Go through the devices reg properties and look for those specifying 51 an address to attach various registers to */ 52 53void do_hw_attach_regs (struct hw *me); 54 55/* Perform a polling read on FD returning either the number of bytes 56 or a hw_io status code that indicates the reason for the read 57 failure */ 58 59enum 60{ 61 HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */ 62}; 63 64typedef int (do_hw_poll_read_method) 65 (SIM_DESC sd, int, char *, int); 66 67int do_hw_poll_read 68(struct hw *me, 69 do_hw_poll_read_method *read, 70 int sim_io_fd, 71 void *buf, 72 unsigned size_of_buf); 73 74 75#endif 76