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1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <glib.h> | |
22 | #include "sigrok.h" | |
23 | ||
24 | extern struct sigrok_global *global; | |
25 | ||
26 | GSList *devices = NULL; | |
27 | ||
28 | ||
29 | void device_scan(void) | |
30 | { | |
31 | GSList *plugins, *l; | |
32 | struct device_plugin *plugin; | |
33 | int num_devices, i; | |
34 | ||
35 | plugins = list_hwplugins(); | |
36 | ||
37 | /* initialize all plugins first. Since the init() call may involve | |
38 | * a firmware upload and associated delay, we may as well get all | |
39 | * of these out of the way first. | |
40 | */ | |
41 | for(l = plugins; l; l = l->next) | |
42 | { | |
43 | plugin = l->data; | |
44 | g_message("initializing %s plugin", plugin->name); | |
45 | num_devices = plugin->init(NULL); | |
46 | for(i = 0; i < num_devices; i++) | |
47 | { | |
48 | device_new(plugin, i); | |
49 | } | |
50 | } | |
51 | ||
52 | } | |
53 | ||
54 | ||
55 | void device_close_all(void) | |
56 | { | |
57 | struct device *device; | |
58 | ||
59 | while(devices) | |
60 | { | |
61 | device = devices->data; | |
62 | device->plugin->close(device->plugin_index); | |
63 | device_destroy(device); | |
64 | } | |
65 | ||
66 | } | |
67 | ||
68 | ||
69 | GSList *device_list(void) | |
70 | { | |
71 | ||
72 | return devices; | |
73 | } | |
74 | ||
75 | ||
76 | struct device *device_new(struct device_plugin *plugin, int plugin_index) | |
77 | { | |
78 | struct device *device; | |
79 | int num_probes, i; | |
80 | char probename[16]; | |
81 | ||
82 | device = g_malloc0(sizeof(struct device)); | |
83 | device->plugin = plugin; | |
84 | device->plugin_index = plugin_index; | |
85 | devices = g_slist_append(devices, device); | |
86 | ||
87 | num_probes = (int) device->plugin->get_device_info(device->plugin_index, DI_NUM_PROBES); | |
88 | for(i = 0; i < num_probes; i++) | |
89 | { | |
90 | snprintf(probename, 16, "%d", i+1); | |
91 | device_probe_add(device, probename); | |
92 | } | |
93 | ||
94 | return device; | |
95 | } | |
96 | ||
97 | ||
98 | void device_clear(struct device *device) | |
99 | { | |
100 | int probenum; | |
101 | ||
102 | /* TODO: plugin-specific clear call? */ | |
103 | ||
104 | if(device->probes) | |
105 | for(probenum = 1; probenum <= g_slist_length(device->probes); probenum++) | |
106 | device_probe_clear(device, probenum); | |
107 | ||
108 | } | |
109 | ||
110 | ||
111 | void device_destroy(struct device *device) | |
112 | { | |
113 | int probenum; | |
114 | ||
115 | /* TODO: plugin-specific destroy call, need to decrease refcount in plugin */ | |
116 | ||
117 | devices = g_slist_remove(devices, device); | |
118 | if(device->probes) | |
119 | { | |
120 | for(probenum = 1; probenum <= g_slist_length(device->probes); probenum++) | |
121 | device_probe_clear(device, probenum); | |
122 | g_slist_free(device->probes); | |
123 | } | |
124 | g_free(device); | |
125 | ||
126 | } | |
127 | ||
128 | ||
129 | void device_probe_clear(struct device *device, int probenum) | |
130 | { | |
131 | struct probe *p; | |
132 | ||
133 | p = probe_find(device, probenum); | |
134 | if(!p) | |
135 | return; | |
136 | ||
137 | if(p->name) | |
138 | { | |
139 | g_free(p->name); | |
140 | p->name = NULL; | |
141 | } | |
142 | ||
143 | if(p->trigger) | |
144 | { | |
145 | g_free(p->trigger); | |
146 | p->trigger = NULL; | |
147 | } | |
148 | ||
149 | } | |
150 | ||
151 | ||
152 | void device_probe_add(struct device *device, char *name) | |
153 | { | |
154 | struct probe *p; | |
155 | ||
156 | p = g_malloc0(sizeof(struct probe)); | |
157 | p->index = g_slist_length(device->probes) + 1; | |
158 | p->enabled = TRUE; | |
159 | p->name = g_strdup(name); | |
160 | p->trigger = NULL; | |
161 | device->probes = g_slist_append(device->probes, p); | |
162 | ||
163 | } | |
164 | ||
165 | ||
166 | struct probe *probe_find(struct device *device, int probenum) | |
167 | { | |
168 | GSList *l; | |
169 | struct probe *p, *found_probe; | |
170 | ||
171 | found_probe = NULL; | |
172 | for(l = device->probes; l; l = l->next) | |
173 | { | |
174 | p = l->data; | |
175 | if(p->index == probenum) | |
176 | { | |
177 | found_probe = p; | |
178 | break; | |
179 | } | |
180 | } | |
181 | ||
182 | return found_probe; | |
183 | } | |
184 | ||
185 | ||
186 | void device_probe_name(struct device *device, int probenum, char *name) | |
187 | { | |
188 | struct probe *p; | |
189 | ||
190 | p = probe_find(device, probenum); | |
191 | if(!p) | |
192 | return; | |
193 | ||
194 | if(p->name) | |
195 | g_free(p->name); | |
196 | p->name = g_strdup(name); | |
197 | ||
198 | } | |
199 | ||
200 | ||
201 | void device_trigger_clear(struct device *device) | |
202 | { | |
203 | struct probe *p; | |
204 | int probenum; | |
205 | ||
206 | if(device->probes) | |
207 | for(probenum = 1; probenum <= g_slist_length(device->probes); probenum++) | |
208 | { | |
209 | p = probe_find(device, probenum); | |
210 | if(p && p->trigger) | |
211 | { | |
212 | g_free(p->trigger); | |
213 | p->trigger = NULL; | |
214 | } | |
215 | } | |
216 | ||
217 | } | |
218 | ||
219 | ||
220 | void device_trigger_set(struct device *device, int probenum, char *trigger) | |
221 | { | |
222 | struct probe *p; | |
223 | ||
224 | p = probe_find(device, probenum); | |
225 | if(!p) | |
226 | return; | |
227 | ||
228 | if(p->trigger) | |
229 | g_free(p->trigger); | |
230 | ||
231 | p->trigger = g_strdup(trigger); | |
232 | ||
233 | } | |
234 | ||
235 |