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