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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 sr_global *global; | |
25 | ||
26 | GSList *devices = NULL; | |
27 | ||
28 | void sr_device_scan(void) | |
29 | { | |
30 | GSList *plugins, *l; | |
31 | struct sr_device_plugin *plugin; | |
32 | ||
33 | plugins = sr_list_hwplugins(); | |
34 | ||
35 | /* | |
36 | * Initialize all plugins first. Since the init() call may involve | |
37 | * a firmware upload and associated delay, we may as well get all | |
38 | * of these out of the way first. | |
39 | */ | |
40 | for (l = plugins; l; l = l->next) { | |
41 | plugin = l->data; | |
42 | sr_device_plugin_init(plugin); | |
43 | } | |
44 | ||
45 | } | |
46 | ||
47 | int sr_device_plugin_init(struct sr_device_plugin *plugin) | |
48 | { | |
49 | int num_devices, num_probes, i; | |
50 | ||
51 | g_message("initializing %s plugin", plugin->name); | |
52 | num_devices = plugin->init(NULL); | |
53 | for (i = 0; i < num_devices; i++) { | |
54 | num_probes = (int)plugin->get_device_info(i, SR_DI_NUM_PROBES); | |
55 | sr_device_new(plugin, i, num_probes); | |
56 | } | |
57 | ||
58 | return num_devices; | |
59 | } | |
60 | ||
61 | void sr_device_close_all(void) | |
62 | { | |
63 | struct sr_device *device; | |
64 | ||
65 | while (devices) { | |
66 | device = devices->data; | |
67 | if (device->plugin && device->plugin->close) | |
68 | device->plugin->close(device->plugin_index); | |
69 | sr_device_destroy(device); | |
70 | } | |
71 | } | |
72 | ||
73 | GSList *sr_device_list(void) | |
74 | { | |
75 | ||
76 | if (!devices) | |
77 | sr_device_scan(); | |
78 | ||
79 | return devices; | |
80 | } | |
81 | ||
82 | struct sr_device *sr_device_new(struct sr_device_plugin *plugin, int plugin_index, | |
83 | int num_probes) | |
84 | { | |
85 | struct sr_device *device; | |
86 | int i; | |
87 | ||
88 | device = g_malloc0(sizeof(struct sr_device)); | |
89 | device->plugin = plugin; | |
90 | device->plugin_index = plugin_index; | |
91 | devices = g_slist_append(devices, device); | |
92 | ||
93 | for (i = 0; i < num_probes; i++) | |
94 | sr_device_probe_add(device, NULL); | |
95 | ||
96 | return device; | |
97 | } | |
98 | ||
99 | void sr_device_clear(struct sr_device *device) | |
100 | { | |
101 | unsigned int pnum; | |
102 | ||
103 | /* TODO: Plugin-specific clear call? */ | |
104 | ||
105 | if (!device->probes) | |
106 | return; | |
107 | ||
108 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) | |
109 | sr_device_probe_clear(device, pnum); | |
110 | } | |
111 | ||
112 | void sr_device_destroy(struct sr_device *device) | |
113 | { | |
114 | unsigned int pnum; | |
115 | ||
116 | /* | |
117 | * TODO: Plugin-specific destroy call, need to decrease refcount | |
118 | * in plugin. | |
119 | */ | |
120 | ||
121 | devices = g_slist_remove(devices, device); | |
122 | if (device->probes) { | |
123 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) | |
124 | sr_device_probe_clear(device, pnum); | |
125 | g_slist_free(device->probes); | |
126 | } | |
127 | g_free(device); | |
128 | } | |
129 | ||
130 | void sr_device_probe_clear(struct sr_device *device, int probenum) | |
131 | { | |
132 | struct sr_probe *p; | |
133 | ||
134 | p = sr_device_probe_find(device, probenum); | |
135 | if (!p) | |
136 | return; | |
137 | ||
138 | if (p->name) { | |
139 | g_free(p->name); | |
140 | p->name = NULL; | |
141 | } | |
142 | ||
143 | if (p->trigger) { | |
144 | g_free(p->trigger); | |
145 | p->trigger = NULL; | |
146 | } | |
147 | } | |
148 | ||
149 | void sr_device_probe_add(struct sr_device *device, const char *name) | |
150 | { | |
151 | struct sr_probe *p; | |
152 | char probename[16]; | |
153 | int probenum; | |
154 | ||
155 | probenum = g_slist_length(device->probes) + 1; | |
156 | p = g_malloc0(sizeof(struct sr_probe)); | |
157 | p->index = probenum; | |
158 | p->enabled = TRUE; | |
159 | if (name) { | |
160 | p->name = g_strdup(name); | |
161 | } else { | |
162 | snprintf(probename, 16, "%d", probenum); | |
163 | p->name = g_strdup(probename); | |
164 | } | |
165 | p->trigger = NULL; | |
166 | device->probes = g_slist_append(device->probes, p); | |
167 | } | |
168 | ||
169 | struct sr_probe *sr_device_probe_find(struct sr_device *device, int probenum) | |
170 | { | |
171 | GSList *l; | |
172 | struct sr_probe *p, *found_probe; | |
173 | ||
174 | found_probe = NULL; | |
175 | for (l = device->probes; l; l = l->next) { | |
176 | p = l->data; | |
177 | if (p->index == probenum) { | |
178 | found_probe = p; | |
179 | break; | |
180 | } | |
181 | } | |
182 | ||
183 | return found_probe; | |
184 | } | |
185 | ||
186 | /* TODO: return SIGROK_ERR if probenum not found */ | |
187 | void sr_device_probe_name(struct sr_device *device, int probenum, | |
188 | const char *name) | |
189 | { | |
190 | struct sr_probe *p; | |
191 | ||
192 | p = sr_device_probe_find(device, probenum); | |
193 | if (!p) | |
194 | return; | |
195 | ||
196 | if (p->name) | |
197 | g_free(p->name); | |
198 | p->name = g_strdup(name); | |
199 | } | |
200 | ||
201 | /* TODO: return SIGROK_ERR if probenum not found */ | |
202 | void sr_device_trigger_clear(struct sr_device *device) | |
203 | { | |
204 | struct sr_probe *p; | |
205 | unsigned int pnum; | |
206 | ||
207 | if (!device->probes) | |
208 | return; | |
209 | ||
210 | for (pnum = 1; pnum <= g_slist_length(device->probes); pnum++) { | |
211 | p = sr_device_probe_find(device, pnum); | |
212 | if (p && p->trigger) { | |
213 | g_free(p->trigger); | |
214 | p->trigger = NULL; | |
215 | } | |
216 | } | |
217 | } | |
218 | ||
219 | /* TODO: return SIGROK_ERR if probenum not found */ | |
220 | void sr_device_trigger_set(struct sr_device *device, int probenum, | |
221 | const char *trigger) | |
222 | { | |
223 | struct sr_probe *p; | |
224 | ||
225 | p = sr_device_probe_find(device, probenum); | |
226 | if (!p) | |
227 | return; | |
228 | ||
229 | if (p->trigger) | |
230 | g_free(p->trigger); | |
231 | ||
232 | p->trigger = g_strdup(trigger); | |
233 | ||
234 | } | |
235 | ||
236 | gboolean sr_device_has_hwcap(struct sr_device *device, int hwcap) | |
237 | { | |
238 | int *capabilities, i; | |
239 | ||
240 | if (!device || !device->plugin) | |
241 | return FALSE; | |
242 | ||
243 | if ((capabilities = device->plugin->get_capabilities())) | |
244 | for (i = 0; capabilities[i]; i++) | |
245 | if (capabilities[i] == hwcap) | |
246 | return TRUE; | |
247 | ||
248 | return FALSE; | |
249 | } |