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 6 This file is part of GDB, the GNU debugger. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along 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 39 typedef void (hw_finish_method) 40 (struct hw *me); 41 42 struct 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 53 void 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 59 enum 60 { 61 HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */ 62 }; 63 64 typedef int (do_hw_poll_read_method) 65 (SIM_DESC sd, int, char *, int); 66 67 int 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