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a1bb33af UH |
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> | |
1b452b85 | 22 | #include <sigrok.h> |
a1bb33af UH |
23 | |
24 | extern struct sigrok_global *global; | |
25 | ||
26 | GSList *devices = NULL; | |
27 | ||
a1bb33af UH |
28 | void device_scan(void) |
29 | { | |
30 | GSList *plugins, *l; | |
31 | struct device_plugin *plugin; | |
32 | int num_devices, i; | |
33 | ||
34 | plugins = list_hwplugins(); | |
35 | ||
1b452b85 UH |
36 | /* |
37 | * Initialize all plugins first. Since the init() call may involve | |
a1bb33af UH |
38 | * a firmware upload and associated delay, we may as well get all |
39 | * of these out of the way first. | |
40 | */ | |
1b452b85 | 41 | for (l = plugins; l; l = l->next) { |
a1bb33af UH |
42 | plugin = l->data; |
43 | g_message("initializing %s plugin", plugin->name); | |
44 | num_devices = plugin->init(NULL); | |
1b452b85 | 45 | for (i = 0; i < num_devices; i++) |
a1bb33af | 46 | device_new(plugin, i); |
a1bb33af | 47 | } |
a1bb33af UH |
48 | } |
49 | ||
a1bb33af UH |
50 | void device_close_all(void) |
51 | { | |
52 | struct device *device; | |
53 | ||
1b452b85 | 54 | while (devices) { |
a1bb33af UH |
55 | device = devices->data; |
56 | device->plugin->close(device->plugin_index); | |
57 | device_destroy(device); | |
58 | } | |
a1bb33af UH |
59 | } |
60 | ||
a1bb33af UH |
61 | GSList *device_list(void) |
62 | { | |
a1bb33af UH |
63 | return devices; |
64 | } | |
65 | ||
a1bb33af UH |
66 | struct device *device_new(struct device_plugin *plugin, int plugin_index) |
67 | { | |
68 | struct device *device; | |
69 | int num_probes, i; | |
70 | char probename[16]; | |
71 | ||
72 | device = g_malloc0(sizeof(struct device)); | |
73 | device->plugin = plugin; | |
74 | device->plugin_index = plugin_index; | |
75 | devices = g_slist_append(devices, device); | |
76 | ||
1b452b85 UH |
77 | num_probes = (int)device->plugin->get_device_info(device->plugin_index, |
78 | DI_NUM_PROBES); | |
79 | for (i = 0; i < num_probes; i++) { | |
80 | snprintf(probename, 16, "%d", i + 1); | |
a1bb33af UH |
81 | device_probe_add(device, probename); |
82 | } | |
83 | ||
84 | return device; | |
85 | } | |
86 | ||
a1bb33af UH |
87 | void device_clear(struct device *device) |
88 | { | |
1b452b85 | 89 | unsigned int pnum; |
a1bb33af | 90 | |
1b452b85 | 91 | /* TODO: Plugin-specific clear call? */ |
a1bb33af | 92 | |
1b452b85 UH |
93 | if (!device->probes) |
94 | return; | |
a1bb33af | 95 | |
1b452b85 UH |
96 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) |
97 | device_probe_clear(device, pnum); | |
a1bb33af UH |
98 | } |
99 | ||
a1bb33af UH |
100 | void device_destroy(struct device *device) |
101 | { | |
1b452b85 | 102 | unsigned int pnum; |
a1bb33af | 103 | |
1b452b85 UH |
104 | /* |
105 | * TODO: Plugin-specific destroy call, need to decrease refcount | |
106 | * in plugin. | |
107 | */ | |
a1bb33af UH |
108 | |
109 | devices = g_slist_remove(devices, device); | |
1b452b85 UH |
110 | if (device->probes) { |
111 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) | |
112 | device_probe_clear(device, pnum); | |
a1bb33af UH |
113 | g_slist_free(device->probes); |
114 | } | |
115 | g_free(device); | |
a1bb33af UH |
116 | } |
117 | ||
a1bb33af UH |
118 | void device_probe_clear(struct device *device, int probenum) |
119 | { | |
120 | struct probe *p; | |
121 | ||
122 | p = probe_find(device, probenum); | |
1b452b85 | 123 | if (!p) |
a1bb33af UH |
124 | return; |
125 | ||
1b452b85 | 126 | if (p->name) { |
a1bb33af UH |
127 | g_free(p->name); |
128 | p->name = NULL; | |
129 | } | |
130 | ||
1b452b85 | 131 | if (p->trigger) { |
a1bb33af UH |
132 | g_free(p->trigger); |
133 | p->trigger = NULL; | |
134 | } | |
a1bb33af UH |
135 | } |
136 | ||
a1bb33af UH |
137 | void device_probe_add(struct device *device, char *name) |
138 | { | |
139 | struct probe *p; | |
140 | ||
141 | p = g_malloc0(sizeof(struct probe)); | |
142 | p->index = g_slist_length(device->probes) + 1; | |
143 | p->enabled = TRUE; | |
144 | p->name = g_strdup(name); | |
145 | p->trigger = NULL; | |
146 | device->probes = g_slist_append(device->probes, p); | |
a1bb33af UH |
147 | } |
148 | ||
a1bb33af UH |
149 | struct probe *probe_find(struct device *device, int probenum) |
150 | { | |
151 | GSList *l; | |
152 | struct probe *p, *found_probe; | |
153 | ||
154 | found_probe = NULL; | |
1b452b85 | 155 | for (l = device->probes; l; l = l->next) { |
a1bb33af | 156 | p = l->data; |
1b452b85 | 157 | if (p->index == probenum) { |
a1bb33af UH |
158 | found_probe = p; |
159 | break; | |
160 | } | |
161 | } | |
162 | ||
163 | return found_probe; | |
164 | } | |
165 | ||
a1bb33af UH |
166 | void device_probe_name(struct device *device, int probenum, char *name) |
167 | { | |
168 | struct probe *p; | |
169 | ||
170 | p = probe_find(device, probenum); | |
1b452b85 | 171 | if (!p) |
a1bb33af UH |
172 | return; |
173 | ||
1b452b85 | 174 | if (p->name) |
a1bb33af UH |
175 | g_free(p->name); |
176 | p->name = g_strdup(name); | |
a1bb33af UH |
177 | } |
178 | ||
a1bb33af UH |
179 | void device_trigger_clear(struct device *device) |
180 | { | |
181 | struct probe *p; | |
1b452b85 | 182 | unsigned int pnum; |
a1bb33af | 183 | |
1b452b85 UH |
184 | if (!device->probes) |
185 | return; | |
a1bb33af | 186 | |
1b452b85 UH |
187 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) { |
188 | p = probe_find(device, pnum); | |
189 | if (p && p->trigger) { | |
190 | g_free(p->trigger); | |
191 | p->trigger = NULL; | |
192 | } | |
193 | } | |
194 | } | |
a1bb33af UH |
195 | |
196 | void device_trigger_set(struct device *device, int probenum, char *trigger) | |
197 | { | |
198 | struct probe *p; | |
199 | ||
200 | p = probe_find(device, probenum); | |
1b452b85 | 201 | if (!p) |
a1bb33af UH |
202 | return; |
203 | ||
1b452b85 | 204 | if (p->trigger) |
a1bb33af UH |
205 | g_free(p->trigger); |
206 | ||
207 | p->trigger = g_strdup(trigger); | |
a1bb33af | 208 | } |