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1 | /* | |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 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 <stdlib.h> | |
21 | #include <stdio.h> | |
22 | #include <sys/types.h> | |
23 | #include <dirent.h> | |
24 | #include <string.h> | |
25 | #include <glib.h> | |
26 | #include "sigrok.h" | |
27 | #include "sigrok-internal.h" | |
28 | ||
29 | /* The list of loaded plugins lives here. */ | |
30 | static GSList *plugins; | |
31 | ||
32 | /* | |
33 | * This enumerates which plugin capabilities correspond to user-settable | |
34 | * options. | |
35 | */ | |
36 | /* TODO: This shouldn't be a global. */ | |
37 | SR_API struct sr_hwcap_option sr_hwcap_options[] = { | |
38 | {SR_HWCAP_SAMPLERATE, SR_T_UINT64, "Sample rate", "samplerate"}, | |
39 | {SR_HWCAP_CAPTURE_RATIO, SR_T_UINT64, "Pre-trigger capture ratio", "captureratio"}, | |
40 | {SR_HWCAP_PATTERN_MODE, SR_T_CHAR, "Pattern generator mode", "patternmode"}, | |
41 | {SR_HWCAP_RLE, SR_T_BOOL, "Run Length Encoding", "rle"}, | |
42 | {0, 0, NULL, NULL}, | |
43 | }; | |
44 | ||
45 | #ifdef HAVE_LA_DEMO | |
46 | extern struct sr_device_plugin demo_plugin_info; | |
47 | #endif | |
48 | #ifdef HAVE_LA_SALEAE_LOGIC | |
49 | extern struct sr_device_plugin saleae_logic_plugin_info; | |
50 | #endif | |
51 | #ifdef HAVE_LA_OLS | |
52 | extern struct sr_device_plugin ols_plugin_info; | |
53 | #endif | |
54 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
55 | extern struct sr_device_plugin zeroplus_logic_cube_plugin_info; | |
56 | #endif | |
57 | #ifdef HAVE_LA_ASIX_SIGMA | |
58 | extern struct sr_device_plugin asix_sigma_plugin_info; | |
59 | #endif | |
60 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
61 | extern SR_PRIV struct device_plugin chronovu_la8_plugin_info; | |
62 | #endif | |
63 | #ifdef HAVE_LA_LINK_MSO19 | |
64 | extern struct sr_device_plugin link_mso19_plugin_info; | |
65 | #endif | |
66 | #ifdef HAVE_LA_ALSA | |
67 | extern struct sr_device_plugin alsa_plugin_info; | |
68 | #endif | |
69 | ||
70 | /* TODO: No linked list needed, this can be a simple array. */ | |
71 | SR_PRIV int load_hwplugins(void) | |
72 | { | |
73 | #ifdef HAVE_LA_DEMO | |
74 | plugins = g_slist_append(plugins, (gpointer *)&demo_plugin_info); | |
75 | #endif | |
76 | #ifdef HAVE_LA_SALEAE_LOGIC | |
77 | plugins = | |
78 | g_slist_append(plugins, (gpointer *)&saleae_logic_plugin_info); | |
79 | #endif | |
80 | #ifdef HAVE_LA_OLS | |
81 | plugins = g_slist_append(plugins, (gpointer *)&ols_plugin_info); | |
82 | #endif | |
83 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
84 | plugins = g_slist_append(plugins, | |
85 | (gpointer *)&zeroplus_logic_cube_plugin_info); | |
86 | #endif | |
87 | #ifdef HAVE_LA_ASIX_SIGMA | |
88 | plugins = g_slist_append(plugins, (gpointer *)&asix_sigma_plugin_info); | |
89 | #endif | |
90 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
91 | plugins = g_slist_append(plugins, (gpointer *)&chronovu_la8_plugin_info); | |
92 | #endif | |
93 | #ifdef HAVE_LA_LINK_MSO19 | |
94 | plugins = g_slist_append(plugins, (gpointer *)&link_mso19_plugin_info); | |
95 | #endif | |
96 | #ifdef HAVE_LA_ALSA | |
97 | plugins = g_slist_append(plugins, (gpointer *)&alsa_plugin_info); | |
98 | #endif | |
99 | ||
100 | return SR_OK; | |
101 | } | |
102 | ||
103 | /** | |
104 | * Returns the list of loaded hardware plugins. | |
105 | * | |
106 | * The list of plugins is initialized from sr_init(), and can only be reset | |
107 | * by calling sr_exit(). | |
108 | * | |
109 | * @return A GSList of pointers to loaded plugins. | |
110 | */ | |
111 | SR_API GSList *sr_list_hwplugins(void) | |
112 | { | |
113 | ||
114 | return plugins; | |
115 | } | |
116 | ||
117 | /** | |
118 | * Initialize a hardware plugin. | |
119 | * | |
120 | * The specified plugin is initialized, and all devices discovered by the | |
121 | * plugin are instantiated. | |
122 | * | |
123 | * @param plugin The plugin to initialize. | |
124 | * | |
125 | * @return The number of devices found and instantiated by the plugin. | |
126 | */ | |
127 | SR_API int sr_init_hwplugin(struct sr_device_plugin *plugin) | |
128 | { | |
129 | int num_devices, num_probes, i, j; | |
130 | int num_initialized_devices = 0; | |
131 | struct sr_device *device; | |
132 | char **probe_names; | |
133 | ||
134 | sr_dbg("initializing %s plugin", plugin->name); | |
135 | num_devices = plugin->init(NULL); | |
136 | for (i = 0; i < num_devices; i++) { | |
137 | num_probes = GPOINTER_TO_INT( | |
138 | plugin->get_device_info(i, SR_DI_NUM_PROBES)); | |
139 | probe_names = (char **)plugin->get_device_info(i, | |
140 | SR_DI_PROBE_NAMES); | |
141 | ||
142 | if (!probe_names) { | |
143 | sr_warn("hwplugin: %s: plugin %s does not return a " | |
144 | "list of probe names", __func__, plugin->name); | |
145 | continue; | |
146 | } | |
147 | ||
148 | device = sr_dev_new(plugin, i); | |
149 | for (j = 0; j < num_probes; j++) | |
150 | sr_dev_probe_add(device, probe_names[j]); | |
151 | num_initialized_devices++; | |
152 | } | |
153 | ||
154 | return num_initialized_devices; | |
155 | } | |
156 | ||
157 | SR_PRIV void sr_cleanup_hwplugins(void) | |
158 | { | |
159 | struct sr_device_plugin *plugin; | |
160 | GSList *l; | |
161 | ||
162 | for (l = plugins; l; l = l->next) { | |
163 | plugin = l->data; | |
164 | if (plugin->cleanup) | |
165 | plugin->cleanup(); | |
166 | } | |
167 | } | |
168 | ||
169 | SR_PRIV struct sr_device_instance *sr_device_instance_new(int index, int status, | |
170 | const char *vendor, const char *model, const char *version) | |
171 | { | |
172 | struct sr_device_instance *sdi; | |
173 | ||
174 | if (!(sdi = g_try_malloc(sizeof(struct sr_device_instance)))) { | |
175 | sr_err("hwplugin: %s: sdi malloc failed", __func__); | |
176 | return NULL; | |
177 | } | |
178 | ||
179 | sdi->index = index; | |
180 | sdi->status = status; | |
181 | sdi->instance_type = -1; | |
182 | sdi->vendor = vendor ? g_strdup(vendor) : NULL; | |
183 | sdi->model = model ? g_strdup(model) : NULL; | |
184 | sdi->version = version ? g_strdup(version) : NULL; | |
185 | sdi->priv = NULL; | |
186 | ||
187 | return sdi; | |
188 | } | |
189 | ||
190 | SR_PRIV struct sr_device_instance *sr_get_device_instance( | |
191 | GSList *device_instances, int device_index) | |
192 | { | |
193 | struct sr_device_instance *sdi; | |
194 | GSList *l; | |
195 | ||
196 | for (l = device_instances; l; l = l->next) { | |
197 | sdi = (struct sr_device_instance *)(l->data); | |
198 | if (sdi->index == device_index) | |
199 | return sdi; | |
200 | } | |
201 | sr_warn("could not find device index %d instance", device_index); | |
202 | ||
203 | return NULL; | |
204 | } | |
205 | ||
206 | SR_PRIV void sr_device_instance_free(struct sr_device_instance *sdi) | |
207 | { | |
208 | g_free(sdi->priv); | |
209 | g_free(sdi->vendor); | |
210 | g_free(sdi->model); | |
211 | g_free(sdi->version); | |
212 | g_free(sdi); | |
213 | } | |
214 | ||
215 | #ifdef HAVE_LIBUSB_1_0 | |
216 | ||
217 | SR_PRIV struct sr_usb_device_instance *sr_usb_device_instance_new(uint8_t bus, | |
218 | uint8_t address, struct libusb_device_handle *hdl) | |
219 | { | |
220 | struct sr_usb_device_instance *udi; | |
221 | ||
222 | if (!(udi = g_try_malloc(sizeof(struct sr_usb_device_instance)))) { | |
223 | sr_err("hwplugin: %s: udi malloc failed", __func__); | |
224 | return NULL; | |
225 | } | |
226 | ||
227 | udi->bus = bus; | |
228 | udi->address = address; | |
229 | udi->devhdl = hdl; /* TODO: Check if this is NULL? */ | |
230 | ||
231 | return udi; | |
232 | } | |
233 | ||
234 | SR_PRIV void sr_usb_device_instance_free(struct sr_usb_device_instance *usb) | |
235 | { | |
236 | /* Avoid compiler warnings. */ | |
237 | (void)usb; | |
238 | ||
239 | /* Nothing to do for this device instance type. */ | |
240 | } | |
241 | ||
242 | #endif | |
243 | ||
244 | SR_PRIV struct sr_serial_device_instance *sr_serial_device_instance_new( | |
245 | const char *port, int fd) | |
246 | { | |
247 | struct sr_serial_device_instance *serial; | |
248 | ||
249 | if (!(serial = g_try_malloc(sizeof(struct sr_serial_device_instance)))) { | |
250 | sr_err("hwplugin: %s: serial malloc failed", __func__); | |
251 | return NULL; | |
252 | } | |
253 | ||
254 | serial->port = g_strdup(port); | |
255 | serial->fd = fd; | |
256 | ||
257 | return serial; | |
258 | } | |
259 | ||
260 | SR_PRIV void sr_serial_device_instance_free( | |
261 | struct sr_serial_device_instance *serial) | |
262 | { | |
263 | g_free(serial->port); | |
264 | } | |
265 | ||
266 | /** | |
267 | * Find out if a list of hardware plugin capabilities has a specific cap. | |
268 | * | |
269 | * @param capabilities A NULL-terminated integer array of capabilities, as | |
270 | * returned by a plugin's get_capabilities() function. | |
271 | * @param hwcap The capability to find in the list. | |
272 | * | |
273 | * @return Returns TRUE if found, FALSE otherwise. | |
274 | */ | |
275 | SR_API gboolean sr_has_hwcap(int *capabilities, int hwcap) | |
276 | { | |
277 | int i; | |
278 | ||
279 | for (i = 0; capabilities[i]; i++) { | |
280 | if (capabilities[i] == hwcap) | |
281 | return TRUE; | |
282 | } | |
283 | ||
284 | return FALSE; | |
285 | } | |
286 | ||
287 | /** | |
288 | * Find a hardware plugin capability option parameter structure. | |
289 | * | |
290 | * @param hwcap The capability to find | |
291 | * | |
292 | * @return Returns a struct with information about the parameter, or NULL | |
293 | * if not found. | |
294 | */ | |
295 | SR_API struct sr_hwcap_option *sr_find_hwcap_option(int hwcap) | |
296 | { | |
297 | int i; | |
298 | ||
299 | for (i = 0; sr_hwcap_options[i].capability; i++) { | |
300 | if (sr_hwcap_options[i].capability == hwcap) | |
301 | return &sr_hwcap_options[i]; | |
302 | } | |
303 | ||
304 | return NULL; | |
305 | } | |
306 | ||
307 | /* unnecessary level of indirection follows. */ | |
308 | ||
309 | SR_PRIV void sr_source_remove(int fd) | |
310 | { | |
311 | sr_session_source_remove(fd); | |
312 | } | |
313 | ||
314 | SR_PRIV void sr_source_add(int fd, int events, int timeout, | |
315 | sr_receive_data_callback rcv_cb, void *user_data) | |
316 | { | |
317 | sr_session_source_add(fd, events, timeout, rcv_cb, user_data); | |
318 | } |