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