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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 loaded hardware drivers. | |
103 | * | |
104 | * The list of drivers is initialized from sr_init(), and can only be reset | |
105 | * by calling sr_exit(). | |
106 | * | |
107 | * @return Pointer to the NULL-terminated list of hardware driver pointers. | |
108 | */ | |
109 | SR_API struct sr_dev_driver **sr_hw_list(void) | |
110 | { | |
111 | return drivers_list; | |
112 | } | |
113 | ||
114 | /** | |
115 | * Initialize a hardware driver. | |
116 | * | |
117 | * The specified driver is initialized, and all devices discovered by the | |
118 | * driver are instantiated. | |
119 | * | |
120 | * @param driver The driver to initialize. | |
121 | * | |
122 | * @return The number of devices found and instantiated by the driver. | |
123 | */ | |
124 | SR_API int sr_hw_init(struct sr_dev_driver *driver) | |
125 | { | |
126 | int num_devs, num_probes, i, j; | |
127 | int num_initialized_devs = 0; | |
128 | struct sr_dev *dev; | |
129 | char **probe_names; | |
130 | ||
131 | sr_dbg("initializing %s driver", driver->name); | |
132 | num_devs = driver->init(NULL); | |
133 | for (i = 0; i < num_devs; i++) { | |
134 | num_probes = GPOINTER_TO_INT( | |
135 | driver->dev_info_get(i, SR_DI_NUM_PROBES)); | |
136 | probe_names = (char **)driver->dev_info_get(i, | |
137 | SR_DI_PROBE_NAMES); | |
138 | ||
139 | if (!probe_names) { | |
140 | sr_warn("hwdriver: %s: driver %s does not return a " | |
141 | "list of probe names", __func__, driver->name); | |
142 | continue; | |
143 | } | |
144 | ||
145 | dev = sr_dev_new(driver, i); | |
146 | for (j = 0; j < num_probes; j++) | |
147 | sr_dev_probe_add(dev, probe_names[j]); | |
148 | num_initialized_devs++; | |
149 | } | |
150 | ||
151 | return num_initialized_devs; | |
152 | } | |
153 | ||
154 | SR_PRIV void sr_hw_cleanup_all(void) | |
155 | { | |
156 | int i; | |
157 | struct sr_dev_driver **drivers; | |
158 | ||
159 | drivers = sr_hw_list(); | |
160 | for (i = 0; drivers[i]; i++) { | |
161 | if (drivers[i]->cleanup) | |
162 | drivers[i]->cleanup(); | |
163 | } | |
164 | } | |
165 | ||
166 | SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status, | |
167 | const char *vendor, const char *model, const char *version) | |
168 | { | |
169 | struct sr_dev_inst *sdi; | |
170 | ||
171 | if (!(sdi = g_try_malloc(sizeof(struct sr_dev_inst)))) { | |
172 | sr_err("hwdriver: %s: sdi malloc failed", __func__); | |
173 | return NULL; | |
174 | } | |
175 | ||
176 | sdi->index = index; | |
177 | sdi->status = status; | |
178 | sdi->inst_type = -1; | |
179 | sdi->vendor = vendor ? g_strdup(vendor) : NULL; | |
180 | sdi->model = model ? g_strdup(model) : NULL; | |
181 | sdi->version = version ? g_strdup(version) : NULL; | |
182 | sdi->priv = NULL; | |
183 | ||
184 | return sdi; | |
185 | } | |
186 | ||
187 | SR_PRIV struct sr_dev_inst *sr_dev_inst_get(GSList *dev_insts, int dev_index) | |
188 | { | |
189 | struct sr_dev_inst *sdi; | |
190 | GSList *l; | |
191 | ||
192 | for (l = dev_insts; l; l = l->next) { | |
193 | sdi = (struct sr_dev_inst *)(l->data); | |
194 | if (sdi->index == dev_index) | |
195 | return sdi; | |
196 | } | |
197 | sr_warn("could not find device index %d instance", dev_index); | |
198 | ||
199 | return NULL; | |
200 | } | |
201 | ||
202 | SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi) | |
203 | { | |
204 | g_free(sdi->priv); | |
205 | g_free(sdi->vendor); | |
206 | g_free(sdi->model); | |
207 | g_free(sdi->version); | |
208 | g_free(sdi); | |
209 | } | |
210 | ||
211 | #ifdef HAVE_LIBUSB_1_0 | |
212 | ||
213 | SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus, | |
214 | uint8_t address, struct libusb_device_handle *hdl) | |
215 | { | |
216 | struct sr_usb_dev_inst *udi; | |
217 | ||
218 | if (!(udi = g_try_malloc(sizeof(struct sr_usb_dev_inst)))) { | |
219 | sr_err("hwdriver: %s: udi malloc failed", __func__); | |
220 | return NULL; | |
221 | } | |
222 | ||
223 | udi->bus = bus; | |
224 | udi->address = address; | |
225 | udi->devhdl = hdl; /* TODO: Check if this is NULL? */ | |
226 | ||
227 | return udi; | |
228 | } | |
229 | ||
230 | SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb) | |
231 | { | |
232 | /* Avoid compiler warnings. */ | |
233 | (void)usb; | |
234 | ||
235 | /* Nothing to do for this device instance type. */ | |
236 | } | |
237 | ||
238 | #endif | |
239 | ||
240 | SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port, | |
241 | int fd) | |
242 | { | |
243 | struct sr_serial_dev_inst *serial; | |
244 | ||
245 | if (!(serial = g_try_malloc(sizeof(struct sr_serial_dev_inst)))) { | |
246 | sr_err("hwdriver: %s: serial malloc failed", __func__); | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | serial->port = g_strdup(port); | |
251 | serial->fd = fd; | |
252 | ||
253 | return serial; | |
254 | } | |
255 | ||
256 | SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial) | |
257 | { | |
258 | g_free(serial->port); | |
259 | } | |
260 | ||
261 | /** | |
262 | * Find out if a hardware driver has a specific capability. | |
263 | * | |
264 | * @param driver The hardware driver in which to search for the capability. | |
265 | * @param hwcap The capability to find in the list. | |
266 | * | |
267 | * @return TRUE if found, FALSE otherwise. | |
268 | */ | |
269 | SR_API gboolean sr_hw_has_hwcap(struct sr_dev_driver *driver, int hwcap) | |
270 | { | |
271 | int *hwcaps, i; | |
272 | ||
273 | hwcaps = driver->hwcap_get_all(); | |
274 | for (i = 0; hwcaps[i]; i++) { | |
275 | if (hwcaps[i] == hwcap) | |
276 | return TRUE; | |
277 | } | |
278 | ||
279 | return FALSE; | |
280 | } | |
281 | ||
282 | /** | |
283 | * Get a hardware driver capability option. | |
284 | * | |
285 | * @param hwcap The capability to get. | |
286 | * | |
287 | * @return A pointer to a struct with information about the parameter, or NULL | |
288 | * if the capability was not found. | |
289 | */ | |
290 | SR_API struct sr_hwcap_option *sr_hw_hwcap_get(int hwcap) | |
291 | { | |
292 | int i; | |
293 | ||
294 | for (i = 0; sr_hwcap_options[i].hwcap; i++) { | |
295 | if (sr_hwcap_options[i].hwcap == hwcap) | |
296 | return &sr_hwcap_options[i]; | |
297 | } | |
298 | ||
299 | return NULL; | |
300 | } | |
301 | ||
302 | /* unnecessary level of indirection follows. */ | |
303 | ||
304 | SR_PRIV void sr_source_remove(int fd) | |
305 | { | |
306 | sr_session_source_remove(fd); | |
307 | } | |
308 | ||
309 | SR_PRIV void sr_source_add(int fd, int events, int timeout, | |
310 | sr_receive_data_callback rcv_cb, void *user_data) | |
311 | { | |
312 | sr_session_source_add(fd, events, timeout, rcv_cb, user_data); | |
313 | } |