1 /* This file is part of the program psim.
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.
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.
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.
22 #ifndef _DEVICE_TABLE_H_
23 #define _DEVICE_TABLE_H_
39 typedef struct _device_callbacks device_callbacks;
42 /* The creator, returns a pointer to any data that should be allocated
43 once during (multiple) simulation runs */
45 typedef void *(device_creator)
47 const device_unit *unit_address,
51 /* two stages of initialization */
53 typedef void (device_init_callback)
56 typedef struct _device_init_callbacks {
57 device_init_callback *address; /* NULL - ignore */
58 device_init_callback *data; /* NULL - ignore */
59 } device_init_callbacks;
62 /* attaching/detaching a devices address space to its parent */
64 typedef void (device_address_callback)
72 device *who); /*callback/default*/
74 typedef struct _device_address_callbacks {
75 device_address_callback *attach;
76 device_address_callback *detach;
77 } device_address_callbacks;
80 /* I/O operations - from parent */
82 typedef unsigned (device_io_read_buffer_callback)
91 typedef unsigned (device_io_write_buffer_callback)
100 typedef struct _device_io_callbacks { /* NULL - error */
101 device_io_read_buffer_callback *read_buffer;
102 device_io_write_buffer_callback *write_buffer;
103 } device_io_callbacks;
106 /* DMA transfers by a device via its parent */
108 typedef unsigned (device_dma_read_buffer_callback)
115 typedef unsigned (device_dma_write_buffer_callback)
121 int violate_read_only_section);
123 typedef struct _device_dma_callbacks { /* NULL - error */
124 device_dma_read_buffer_callback *read_buffer;
125 device_dma_write_buffer_callback *write_buffer;
126 } device_dma_callbacks;
131 typedef void (device_interrupt_event_callback)
140 typedef void (device_child_interrupt_event_callback)
149 typedef struct _device_interrupt_port_descriptor {
153 } device_interrupt_port_descriptor;
155 typedef struct _device_interrupt_callbacks {
156 device_interrupt_event_callback *event;
157 device_child_interrupt_event_callback *child_event;
158 const device_interrupt_port_descriptor *ports;
159 } device_interrupt_callbacks;
162 /* symbolic value decoding */
164 typedef int (device_unit_decode_callback)
167 device_unit *address);
169 typedef int (device_unit_encode_callback)
171 const device_unit *unit_address,
175 typedef struct _device_convert_callbacks {
176 device_unit_decode_callback *decode_unit;
177 device_unit_encode_callback *encode_unit;
178 } device_convert_callbacks;
183 typedef void (device_instance_delete_callback)
184 (device_instance *instance);
186 typedef int (device_instance_read_callback)
187 (device_instance *instance,
191 typedef int (device_instance_write_callback)
192 (device_instance *instance,
196 typedef int (device_instance_seek_callback)
197 (device_instance *instance,
198 unsigned_word pos_hi,
199 unsigned_word pos_lo);
201 typedef unsigned_word (device_instance_claim_callback)
202 (device_instance *instance,
203 unsigned_word address,
204 unsigned_word length,
205 unsigned_word alignment);
207 typedef void (device_instance_release_callback)
208 (device_instance *instance,
209 unsigned_word address,
210 unsigned_word length);
212 struct _device_instance_callbacks { /* NULL - error */
213 device_instance_delete_callback *delete;
214 device_instance_read_callback *read;
215 device_instance_write_callback *write;
216 device_instance_seek_callback *seek;
217 device_instance_claim_callback *claim;
218 device_instance_release_callback *release;
221 typedef device_instance *(device_create_instance_callback)
226 typedef device_instance *(package_create_instance_callback)
227 (device_instance *parent,
233 typedef int (device_ioctl_callback)
239 typedef void (device_usage_callback)
245 struct _device_callbacks {
248 device_init_callbacks init;
250 /* address/data config - from child */
251 device_address_callbacks address;
253 /* address/data transfer - from parent */
254 device_io_callbacks io;
256 /* address/data transfer - from child */
257 device_dma_callbacks dma;
259 /* interrupt signalling */
260 device_interrupt_callbacks interrupt;
262 /* bus address decoding */
263 device_convert_callbacks convert;
266 device_create_instance_callback *instance_create;
268 /* back door to anything we've forgot */
269 device_ioctl_callback *ioctl;
270 device_usage_callback *usage;
274 /* Table of all the devices and a function to lookup/create a device
277 typedef struct _device_descriptor device_descriptor;
278 struct _device_descriptor {
280 device_creator *creator;
281 const device_callbacks *callbacks;
284 extern const device_descriptor *const device_table[];
288 /* Pass through, ignore and generic callback functions. A call going
289 towards the root device are passed on up, local calls are ignored
290 and call downs abort */
292 extern device_address_callback passthrough_device_address_attach;
293 extern device_address_callback passthrough_device_address_detach;
294 extern device_dma_read_buffer_callback passthrough_device_dma_read_buffer;
295 extern device_dma_write_buffer_callback passthrough_device_dma_write_buffer;
297 extern device_unit_decode_callback ignore_device_unit_decode;
299 extern device_init_callback generic_device_init_address;
300 extern device_unit_decode_callback generic_device_unit_decode;
301 extern device_unit_encode_callback generic_device_unit_encode;
304 extern const device_callbacks passthrough_device_callbacks;
306 #endif /* _DEVICE_TABLE_H_ */