| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au> |
| 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 | #include "sim-main.h" |
| 23 | |
| 24 | #include "hw-device.h" |
| 25 | #include "hw-properties.h" |
| 26 | |
| 27 | #if HAVE_STDLIB_H |
| 28 | #include <stdlib.h> |
| 29 | #endif |
| 30 | |
| 31 | \f |
| 32 | /* Address methods */ |
| 33 | |
| 34 | const hw_unit * |
| 35 | hw_unit_address (struct hw *me) |
| 36 | { |
| 37 | return &me->unit_address_of_hw; |
| 38 | } |
| 39 | |
| 40 | |
| 41 | \f |
| 42 | /* IOCTL: */ |
| 43 | |
| 44 | int |
| 45 | hw_ioctl (struct hw *me, |
| 46 | sim_cpu *processor, |
| 47 | sim_cia cia, |
| 48 | hw_ioctl_request request, |
| 49 | ...) |
| 50 | { |
| 51 | int status; |
| 52 | va_list ap; |
| 53 | va_start(ap, request); |
| 54 | status = me->to_ioctl (me, processor, cia, request, ap); |
| 55 | va_end(ap); |
| 56 | return status; |
| 57 | } |
| 58 | |
| 59 | /* I/O */ |
| 60 | |
| 61 | void volatile |
| 62 | hw_abort (struct hw *me, |
| 63 | const char *fmt, |
| 64 | ...) |
| 65 | { |
| 66 | SIM_DESC sd; |
| 67 | const char *name; |
| 68 | va_list ap; |
| 69 | va_start(ap, fmt); |
| 70 | /* find a system to abort through */ |
| 71 | if (me == NULL || hw_system (me) == NULL) |
| 72 | sd = NULL; |
| 73 | else |
| 74 | sd = hw_system (me); |
| 75 | /* find an identity */ |
| 76 | if (me != NULL && hw_path (me) != NULL && hw_path (me) [0] != '\0') |
| 77 | name = hw_path (me); |
| 78 | else if (me != NULL && hw_name (me) != NULL && hw_name (me)[0] != '\0') |
| 79 | name = hw_name (me); |
| 80 | else if (me != NULL && hw_family (me) != NULL && hw_family (me)[0] != '\0') |
| 81 | name = hw_family (me); |
| 82 | else |
| 83 | name = "device"; |
| 84 | /* report the problem */ |
| 85 | sim_io_eprintf (sd, "%s: ", name); |
| 86 | sim_io_evprintf (sd, fmt, ap); |
| 87 | sim_io_error (sd, "%s", ""); |
| 88 | } |
| 89 | |
| 90 | void |
| 91 | hw_trace (struct hw *me, |
| 92 | const char *fmt, |
| 93 | ...) |
| 94 | { |
| 95 | if (hw_trace_p (me)) /* to be sure, to be sure */ |
| 96 | { |
| 97 | va_list ap; |
| 98 | va_start (ap, fmt); |
| 99 | sim_io_eprintf (hw_system (me), "%s: ", hw_path (me)); |
| 100 | sim_io_evprintf (hw_system (me), fmt, ap); |
| 101 | sim_io_eprintf (hw_system (me), "\n"); |
| 102 | va_end (ap); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | \f |
| 107 | /* The event queue abstraction (for devices) */ |
| 108 | |
| 109 | |
| 110 | struct _hw_event { |
| 111 | void *data; |
| 112 | struct hw *me; |
| 113 | hw_event_handler *handler; |
| 114 | sim_event *real; |
| 115 | }; |
| 116 | |
| 117 | /* Pass the H/W event onto the real handler */ |
| 118 | |
| 119 | static void |
| 120 | bounce_hw_event (SIM_DESC sd, |
| 121 | void *data) |
| 122 | { |
| 123 | hw_event event = * (hw_event*) data; |
| 124 | zfree (data); |
| 125 | event.handler (event.me, event.data); |
| 126 | } |
| 127 | |
| 128 | |
| 129 | /* Map onto the event functions */ |
| 130 | |
| 131 | hw_event * |
| 132 | hw_event_queue_schedule (struct hw *me, |
| 133 | signed64 delta_time, |
| 134 | hw_event_handler *handler, |
| 135 | void *data) |
| 136 | { |
| 137 | hw_event *event = ZALLOC (hw_event); |
| 138 | event->data = data; |
| 139 | event->handler = handler; |
| 140 | event->me = me; |
| 141 | event->real = sim_events_schedule (hw_system (me), |
| 142 | delta_time, |
| 143 | bounce_hw_event, |
| 144 | event); |
| 145 | return event; |
| 146 | } |
| 147 | |
| 148 | void |
| 149 | hw_event_queue_deschedule (struct hw *me, |
| 150 | hw_event *event_to_remove) |
| 151 | { |
| 152 | sim_events_deschedule (hw_system (me), |
| 153 | event_to_remove->real); |
| 154 | zfree (event_to_remove); |
| 155 | } |
| 156 | |
| 157 | signed64 |
| 158 | hw_event_queue_time (struct hw *me) |
| 159 | { |
| 160 | return sim_events_time (hw_system (me)); |
| 161 | } |
| 162 | |
| 163 | \f |
| 164 | /* Mechanism for associating allocated memory regions to a device. |
| 165 | When a device is deleted any remaining memory regions are also |
| 166 | reclaimed. |
| 167 | |
| 168 | FIXME: Perhaphs this can be generalized, perhaphs it should not |
| 169 | be. */ |
| 170 | |
| 171 | struct hw_alloc_data { |
| 172 | void *alloc; |
| 173 | int zalloc_p; |
| 174 | struct hw_alloc_data *next; |
| 175 | }; |
| 176 | |
| 177 | extern void * |
| 178 | hw_zalloc (struct hw *me, unsigned long size) |
| 179 | { |
| 180 | struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); |
| 181 | memory->alloc = zalloc (size); |
| 182 | memory->zalloc_p = 1; |
| 183 | memory->next = me->alloc_of_hw; |
| 184 | me->alloc_of_hw = memory; |
| 185 | return memory->alloc; |
| 186 | } |
| 187 | |
| 188 | extern void * |
| 189 | hw_malloc (struct hw *me, unsigned long size) |
| 190 | { |
| 191 | struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); |
| 192 | memory->alloc = zalloc (size); |
| 193 | memory->zalloc_p = 0; |
| 194 | memory->next = me->alloc_of_hw; |
| 195 | me->alloc_of_hw = memory; |
| 196 | return memory->alloc; |
| 197 | } |
| 198 | |
| 199 | extern void |
| 200 | hw_free (struct hw *me, |
| 201 | void *alloc) |
| 202 | { |
| 203 | struct hw_alloc_data **memory; |
| 204 | for (memory = &me->alloc_of_hw; |
| 205 | *memory != NULL; |
| 206 | memory = &(*memory)->next) |
| 207 | { |
| 208 | if ((*memory)->alloc == alloc) |
| 209 | { |
| 210 | struct hw_alloc_data *die = (*memory); |
| 211 | (*memory) = die->next; |
| 212 | if (die->zalloc_p) |
| 213 | zfree (die->alloc); |
| 214 | else |
| 215 | free (die->alloc); |
| 216 | zfree (die); |
| 217 | return; |
| 218 | } |
| 219 | } |
| 220 | hw_abort (me, "free of memory not belonging to a device"); |
| 221 | } |
| 222 | |
| 223 | extern void |
| 224 | hw_free_all (struct hw *me) |
| 225 | { |
| 226 | while (me->alloc_of_hw != NULL) |
| 227 | { |
| 228 | hw_free (me, me->alloc_of_hw->alloc); |
| 229 | } |
| 230 | } |