2 Copyright (C) 1998, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
3 Contributed by Andrew Cagney and Cygnus Solutions.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
43 struct hw_port_edge *next;
44 object_disposition disposition;
48 hw_port_event_method *to_port_event;
49 const struct hw_port_descriptor *ports;
50 struct hw_port_edge *edges;
53 const struct hw_port_descriptor empty_hw_ports[] = {
58 panic_hw_port_event (struct hw *me,
64 hw_abort (me, "no port method");
68 create_hw_port_data (struct hw *me)
70 me->ports_of_hw = HW_ZALLOC (me, struct hw_port_data);
71 set_hw_port_event (me, panic_hw_port_event);
72 set_hw_ports (me, empty_hw_ports);
76 delete_hw_port_data (struct hw *me)
78 hw_free (me, me->ports_of_hw);
79 me->ports_of_hw = NULL;
83 set_hw_ports (struct hw *me,
84 const struct hw_port_descriptor ports[])
86 me->ports_of_hw->ports = ports;
90 set_hw_port_event (struct hw *me,
91 hw_port_event_method *port_event)
93 me->ports_of_hw->to_port_event = port_event;
98 attach_hw_port_edge (struct hw *me,
99 struct hw_port_edge **list,
103 object_disposition disposition)
105 struct hw_port_edge *new_edge = HW_ZALLOC (me, struct hw_port_edge);
106 new_edge->my_port = my_port;
107 new_edge->dest = dest;
108 new_edge->dest_port = dest_port;
109 new_edge->next = *list;
110 new_edge->disposition = disposition;
116 detach_hw_port_edge (struct hw *me,
117 struct hw_port_edge **list,
122 while (*list != NULL)
124 struct hw_port_edge *old_edge = *list;
125 if (old_edge->dest == dest
126 && old_edge->dest_port == dest_port
127 && old_edge->my_port == my_port)
129 if (old_edge->disposition == permenant_object)
130 hw_abort (me, "attempt to delete permenant port edge");
131 *list = old_edge->next;
132 hw_free (me, old_edge);
136 hw_abort (me, "attempt to delete unattached port");
142 clean_hw_port_edges (struct hw_port_edge **list)
144 while (*list != NULL)
146 struct hw_port_edge *old_edge = *list;
147 switch (old_edge->disposition)
149 case permenant_object:
150 list = &old_edge->next;
152 case temporary_object:
153 *list = old_edge->next;
154 hw_free (me, old_edge);
165 hw_port_event (struct hw *me,
169 int found_an_edge = 0;
170 struct hw_port_edge *edge;
171 /* device's lines directly connected */
172 for (edge = me->ports_of_hw->edges;
176 if (edge->my_port == my_port)
178 edge->dest->ports_of_hw->to_port_event (edge->dest,
187 hw_abort (me, "No edge for port %d", my_port);
192 hw_port_attach (struct hw *me,
196 object_disposition disposition)
198 attach_hw_port_edge (me,
199 &me->ports_of_hw->edges,
208 hw_port_detach (struct hw *me,
213 detach_hw_port_edge (me,
214 &me->ports_of_hw->edges,
222 hw_port_traverse (struct hw *me,
223 hw_port_traverse_function *handler,
226 struct hw_port_edge *port_edge;
227 for (port_edge = me->ports_of_hw->edges;
229 port_edge = port_edge->next)
231 handler (me, port_edge->my_port,
232 port_edge->dest, port_edge->dest_port,
239 hw_port_decode (struct hw *me,
240 const char *port_name,
241 port_direction direction)
243 if (port_name == NULL || port_name[0] == '\0')
245 if (isdigit(port_name[0]))
247 return strtoul (port_name, NULL, 0);
251 const struct hw_port_descriptor *ports =
252 me->ports_of_hw->ports;
255 while (ports->name != NULL)
257 if (ports->direction == bidirect_port
258 || ports->direction == direction)
260 if (ports->nr_ports > 0)
262 int len = strlen (ports->name);
263 if (strncmp (port_name, ports->name, len) == 0)
265 if (port_name[len] == '\0')
266 return ports->number;
267 else if(isdigit (port_name[len]))
269 int port = (ports->number
270 + strtoul (&port_name[len], NULL, 0));
271 if (port >= ports->number + ports->nr_ports)
273 "Port %s out of range",
279 else if (strcmp (port_name, ports->name) == 0)
280 return ports->number;
286 hw_abort (me, "Unreconized port %s", port_name);
292 hw_port_encode (struct hw *me,
296 port_direction direction)
298 const struct hw_port_descriptor *ports = NULL;
299 ports = me->ports_of_hw->ports;
301 while (ports->name != NULL)
303 if (ports->direction == bidirect_port
304 || ports->direction == direction)
306 if (ports->nr_ports > 0)
308 if (port_number >= ports->number
309 && port_number < ports->number + ports->nr_ports)
311 strcpy (buf, ports->name);
312 sprintf (buf + strlen(buf), "%d", port_number - ports->number);
313 if (strlen (buf) >= sizeof_buf)
314 hw_abort (me, "hw_port_encode: buffer overflow");
320 if (ports->number == port_number)
322 if (strlen(ports->name) >= sizeof_buf)
323 hw_abort (me, "hw_port_encode: buffer overflow");
324 strcpy(buf, ports->name);
332 sprintf (buf, "%d", port_number);
333 if (strlen(buf) >= sizeof_buf)
334 hw_abort (me, "hw_port_encode: buffer overflow");