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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 "libsigrok.h" | |
27 | #include "libsigrok-internal.h" | |
28 | ||
29 | /* | |
30 | * This enumerates which driver capabilities correspond to user-settable | |
31 | * options. | |
32 | */ | |
33 | /* TODO: This shouldn't be a global. */ | |
34 | SR_API struct sr_hwcap_option sr_hwcap_options[] = { | |
35 | /* Driver scanning options. */ | |
36 | {SR_HWOPT_MODEL, SR_T_KEYVALUE, "Model", "model"}, | |
37 | {SR_HWOPT_CONN, SR_T_CHAR, "Connection", "conn"}, | |
38 | {SR_HWOPT_SERIALCOMM, SR_T_CHAR, "Serial communication", "serialcomm"}, | |
39 | /* Device instance options. */ | |
40 | {SR_HWCAP_SAMPLERATE, SR_T_UINT64, "Sample rate", "samplerate"}, | |
41 | {SR_HWCAP_CAPTURE_RATIO, SR_T_UINT64, "Pre-trigger capture ratio", "captureratio"}, | |
42 | {SR_HWCAP_PATTERN_MODE, SR_T_CHAR, "Pattern generator mode", "pattern"}, | |
43 | {SR_HWCAP_RLE, SR_T_BOOL, "Run Length Encoding", "rle"}, | |
44 | {SR_HWCAP_TRIGGER_SLOPE, SR_T_UINT64, "Trigger slope", "triggerslope"}, | |
45 | {SR_HWCAP_TRIGGER_SOURCE, SR_T_CHAR, "Trigger source", "triggersource"}, | |
46 | {SR_HWCAP_HORIZ_TRIGGERPOS, SR_T_FLOAT, "Horizontal trigger position", | |
47 | "horiz_triggerpos"}, | |
48 | {SR_HWCAP_BUFFERSIZE, SR_T_UINT64, "Buffer size", "buffersize"}, | |
49 | {SR_HWCAP_TIMEBASE, SR_T_RATIONAL_PERIOD, "Time base", "timebase"}, | |
50 | {SR_HWCAP_FILTER, SR_T_CHAR, "Filter targets", "filter"}, | |
51 | {SR_HWCAP_VDIV, SR_T_RATIONAL_VOLT, "Volts/div", "vdiv"}, | |
52 | {SR_HWCAP_COUPLING, SR_T_CHAR, "Coupling", "coupling"}, | |
53 | {0, 0, NULL, NULL}, | |
54 | }; | |
55 | ||
56 | #ifdef HAVE_LA_DEMO | |
57 | extern SR_PRIV struct sr_dev_driver demo_driver_info; | |
58 | #endif | |
59 | #ifdef HAVE_LA_OLS | |
60 | extern SR_PRIV struct sr_dev_driver ols_driver_info; | |
61 | #endif | |
62 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
63 | extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; | |
64 | #endif | |
65 | #ifdef HAVE_LA_ASIX_SIGMA | |
66 | extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info; | |
67 | #endif | |
68 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
69 | extern SR_PRIV struct sr_dev_driver chronovu_la8_driver_info; | |
70 | #endif | |
71 | #ifdef HAVE_LA_LINK_MSO19 | |
72 | extern SR_PRIV struct sr_dev_driver link_mso19_driver_info; | |
73 | #endif | |
74 | #ifdef HAVE_LA_ALSA | |
75 | extern SR_PRIV struct sr_dev_driver alsa_driver_info; | |
76 | #endif | |
77 | #ifdef HAVE_LA_FX2LAFW | |
78 | extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info; | |
79 | #endif | |
80 | #ifdef HAVE_HW_HANTEK_DSO | |
81 | extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info; | |
82 | #endif | |
83 | #ifdef HAVE_HW_GENERICDMM | |
84 | extern SR_PRIV struct sr_dev_driver genericdmm_driver_info; | |
85 | #endif | |
86 | ||
87 | static struct sr_dev_driver *drivers_list[] = { | |
88 | #ifdef HAVE_LA_DEMO | |
89 | &demo_driver_info, | |
90 | #endif | |
91 | #ifdef HAVE_LA_OLS | |
92 | &ols_driver_info, | |
93 | #endif | |
94 | #ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE | |
95 | &zeroplus_logic_cube_driver_info, | |
96 | #endif | |
97 | #ifdef HAVE_LA_ASIX_SIGMA | |
98 | &asix_sigma_driver_info, | |
99 | #endif | |
100 | #ifdef HAVE_LA_CHRONOVU_LA8 | |
101 | &chronovu_la8_driver_info, | |
102 | #endif | |
103 | #ifdef HAVE_LA_LINK_MSO19 | |
104 | &link_mso19_driver_info, | |
105 | #endif | |
106 | #ifdef HAVE_LA_ALSA | |
107 | &alsa_driver_info, | |
108 | #endif | |
109 | #ifdef HAVE_LA_FX2LAFW | |
110 | &fx2lafw_driver_info, | |
111 | #endif | |
112 | #ifdef HAVE_HW_HANTEK_DSO | |
113 | &hantek_dso_driver_info, | |
114 | #endif | |
115 | #ifdef HAVE_HW_GENERICDMM | |
116 | &genericdmm_driver_info, | |
117 | #endif | |
118 | NULL, | |
119 | }; | |
120 | ||
121 | /** | |
122 | * Return the list of supported hardware drivers. | |
123 | * | |
124 | * @return Pointer to the NULL-terminated list of hardware driver pointers. | |
125 | */ | |
126 | SR_API struct sr_dev_driver **sr_driver_list(void) | |
127 | { | |
128 | return drivers_list; | |
129 | } | |
130 | ||
131 | /** | |
132 | * Initialize a hardware driver. | |
133 | * | |
134 | * The specified driver is initialized, and all devices discovered by the | |
135 | * driver are instantiated. | |
136 | * | |
137 | * @param driver The driver to initialize. | |
138 | * | |
139 | * @return The number of devices found and instantiated by the driver. | |
140 | */ | |
141 | SR_API int sr_driver_init(struct sr_dev_driver *driver) | |
142 | { | |
143 | int num_devs, num_probes, i, j; | |
144 | int num_initialized_devs = 0; | |
145 | struct sr_dev *dev; | |
146 | char **probe_names; | |
147 | ||
148 | sr_dbg("initializing %s driver", driver->name); | |
149 | num_devs = driver->init(); | |
150 | for (i = 0; i < num_devs; i++) { | |
151 | num_probes = GPOINTER_TO_INT( | |
152 | driver->dev_info_get(i, SR_DI_NUM_PROBES)); | |
153 | probe_names = (char **)driver->dev_info_get(i, | |
154 | SR_DI_PROBE_NAMES); | |
155 | ||
156 | if (!probe_names) { | |
157 | sr_warn("hwdriver: %s: driver %s does not return a " | |
158 | "list of probe names", __func__, driver->name); | |
159 | continue; | |
160 | } | |
161 | ||
162 | dev = sr_dev_new(driver, i); | |
163 | for (j = 0; j < num_probes; j++) | |
164 | sr_dev_probe_add(dev, probe_names[j]); | |
165 | num_initialized_devs++; | |
166 | } | |
167 | ||
168 | return num_initialized_devs; | |
169 | } | |
170 | ||
171 | SR_PRIV void sr_hw_cleanup_all(void) | |
172 | { | |
173 | int i; | |
174 | struct sr_dev_driver **drivers; | |
175 | ||
176 | drivers = sr_driver_list(); | |
177 | for (i = 0; drivers[i]; i++) { | |
178 | if (drivers[i]->cleanup) | |
179 | drivers[i]->cleanup(); | |
180 | } | |
181 | } | |
182 | ||
183 | SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status, | |
184 | const char *vendor, const char *model, const char *version) | |
185 | { | |
186 | struct sr_dev_inst *sdi; | |
187 | ||
188 | if (!(sdi = g_try_malloc(sizeof(struct sr_dev_inst)))) { | |
189 | sr_err("hwdriver: %s: sdi malloc failed", __func__); | |
190 | return NULL; | |
191 | } | |
192 | ||
193 | sdi->index = index; | |
194 | sdi->status = status; | |
195 | sdi->inst_type = -1; | |
196 | sdi->vendor = vendor ? g_strdup(vendor) : NULL; | |
197 | sdi->model = model ? g_strdup(model) : NULL; | |
198 | sdi->version = version ? g_strdup(version) : NULL; | |
199 | sdi->priv = NULL; | |
200 | ||
201 | return sdi; | |
202 | } | |
203 | ||
204 | SR_PRIV struct sr_dev_inst *sr_dev_inst_get(GSList *dev_insts, int dev_index) | |
205 | { | |
206 | struct sr_dev_inst *sdi; | |
207 | GSList *l; | |
208 | ||
209 | for (l = dev_insts; l; l = l->next) { | |
210 | sdi = (struct sr_dev_inst *)(l->data); | |
211 | if (sdi->index == dev_index) | |
212 | return sdi; | |
213 | } | |
214 | sr_warn("could not find device index %d instance", dev_index); | |
215 | ||
216 | return NULL; | |
217 | } | |
218 | ||
219 | SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi) | |
220 | { | |
221 | g_free(sdi->priv); | |
222 | g_free(sdi->vendor); | |
223 | g_free(sdi->model); | |
224 | g_free(sdi->version); | |
225 | g_free(sdi); | |
226 | } | |
227 | ||
228 | #ifdef HAVE_LIBUSB_1_0 | |
229 | ||
230 | SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus, | |
231 | uint8_t address, struct libusb_device_handle *hdl) | |
232 | { | |
233 | struct sr_usb_dev_inst *udi; | |
234 | ||
235 | if (!(udi = g_try_malloc(sizeof(struct sr_usb_dev_inst)))) { | |
236 | sr_err("hwdriver: %s: udi malloc failed", __func__); | |
237 | return NULL; | |
238 | } | |
239 | ||
240 | udi->bus = bus; | |
241 | udi->address = address; | |
242 | udi->devhdl = hdl; | |
243 | ||
244 | return udi; | |
245 | } | |
246 | ||
247 | SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb) | |
248 | { | |
249 | /* Avoid compiler warnings. */ | |
250 | (void)usb; | |
251 | ||
252 | /* Nothing to do for this device instance type. */ | |
253 | } | |
254 | ||
255 | #endif | |
256 | ||
257 | SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port, | |
258 | int fd) | |
259 | { | |
260 | struct sr_serial_dev_inst *serial; | |
261 | ||
262 | if (!(serial = g_try_malloc(sizeof(struct sr_serial_dev_inst)))) { | |
263 | sr_err("hwdriver: %s: serial malloc failed", __func__); | |
264 | return NULL; | |
265 | } | |
266 | ||
267 | serial->port = g_strdup(port); | |
268 | serial->fd = fd; | |
269 | ||
270 | return serial; | |
271 | } | |
272 | ||
273 | SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial) | |
274 | { | |
275 | g_free(serial->port); | |
276 | } | |
277 | ||
278 | /** | |
279 | * Find out if a hardware driver has a specific capability. | |
280 | * | |
281 | * @param driver The hardware driver in which to search for the capability. | |
282 | * @param hwcap The capability to find in the list. | |
283 | * | |
284 | * @return TRUE if the specified capability exists in the specified driver, | |
285 | * FALSE otherwise. Also, if 'driver' is NULL or the respective driver | |
286 | * returns an invalid capability list, FALSE is returned. | |
287 | */ | |
288 | SR_API gboolean sr_driver_hwcap_exists(struct sr_dev_driver *driver, int hwcap) | |
289 | { | |
290 | const int *hwcaps; | |
291 | int i; | |
292 | ||
293 | if (!driver) { | |
294 | sr_err("hwdriver: %s: driver was NULL", __func__); | |
295 | return FALSE; | |
296 | } | |
297 | ||
298 | if (!(hwcaps = driver->hwcap_get_all())) { | |
299 | sr_err("hwdriver: %s: hwcap_get_all() returned NULL", __func__); | |
300 | return FALSE; | |
301 | } | |
302 | ||
303 | for (i = 0; hwcaps[i]; i++) { | |
304 | if (hwcaps[i] == hwcap) | |
305 | return TRUE; | |
306 | } | |
307 | ||
308 | return FALSE; | |
309 | } | |
310 | ||
311 | /** | |
312 | * Get a hardware driver capability option. | |
313 | * | |
314 | * @param hwcap The capability to get. | |
315 | * | |
316 | * @return A pointer to a struct with information about the parameter, or NULL | |
317 | * if the capability was not found. | |
318 | */ | |
319 | SR_API const struct sr_hwcap_option *sr_hw_hwcap_get(int hwcap) | |
320 | { | |
321 | int i; | |
322 | ||
323 | for (i = 0; sr_hwcap_options[i].hwcap; i++) { | |
324 | if (sr_hwcap_options[i].hwcap == hwcap) | |
325 | return &sr_hwcap_options[i]; | |
326 | } | |
327 | ||
328 | return NULL; | |
329 | } | |
330 | ||
331 | /* Unnecessary level of indirection follows. */ | |
332 | ||
333 | SR_PRIV int sr_source_remove(int fd) | |
334 | { | |
335 | return sr_session_source_remove(fd); | |
336 | } | |
337 | ||
338 | SR_PRIV int sr_source_add(int fd, int events, int timeout, | |
339 | sr_receive_data_callback_t cb, void *cb_data) | |
340 | { | |
341 | return sr_session_source_add(fd, events, timeout, cb, cb_data); | |
342 | } |