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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 <stdio.h> | |
21 | #include <glib.h> | |
22 | #include "libsigrok.h" | |
23 | #include "libsigrok-internal.h" | |
24 | ||
25 | SR_PRIV struct sr_probe *sr_probe_new(int index, int type, | |
26 | gboolean enabled, const char *name) | |
27 | { | |
28 | struct sr_probe *probe; | |
29 | ||
30 | if (!(probe = g_try_malloc0(sizeof(struct sr_probe)))) { | |
31 | sr_err("hwdriver: probe malloc failed"); | |
32 | return NULL; | |
33 | } | |
34 | ||
35 | probe->index = index; | |
36 | probe->type = type; | |
37 | probe->enabled = enabled; | |
38 | if (name) | |
39 | probe->name = g_strdup(name); | |
40 | ||
41 | return probe; | |
42 | } | |
43 | ||
44 | /** | |
45 | * Set the name of the specified probe in the specified device. | |
46 | * | |
47 | * If the probe already has a different name assigned to it, it will be | |
48 | * removed, and the new name will be saved instead. | |
49 | * | |
50 | * @param sdi The device instance the probe is connected to. | |
51 | * @param probenum The number of the probe whose name to set. | |
52 | * Note that the probe numbers start at 0. | |
53 | * @param name The new name that the specified probe should get. A copy | |
54 | * of the string is made. | |
55 | * | |
56 | * @return SR_OK on success, or SR_ERR_ARG on invalid arguments. | |
57 | */ | |
58 | SR_API int sr_dev_probe_name_set(const struct sr_dev_inst *sdi, | |
59 | int probenum, const char *name) | |
60 | { | |
61 | GSList *l; | |
62 | struct sr_probe *probe; | |
63 | int ret; | |
64 | ||
65 | if (!sdi) { | |
66 | sr_err("%s: sdi was NULL", __func__); | |
67 | return SR_ERR_ARG; | |
68 | } | |
69 | ||
70 | ret = SR_ERR_ARG; | |
71 | for (l = sdi->probes; l; l = l->next) { | |
72 | probe = l->data; | |
73 | if (probe->index == probenum) { | |
74 | g_free(probe->name); | |
75 | probe->name = g_strdup(name); | |
76 | ret = SR_OK; | |
77 | break; | |
78 | } | |
79 | } | |
80 | ||
81 | return ret; | |
82 | } | |
83 | ||
84 | /** | |
85 | * Enable or disable a probe on the specified device. | |
86 | * | |
87 | * @param sdi The device instance the probe is connected to. | |
88 | * @param probenum The probe number, starting from 0. | |
89 | * @param state TRUE to enable the probe, FALSE to disable. | |
90 | * | |
91 | * @return SR_OK on success, or SR_ERR_ARG on invalid arguments. | |
92 | */ | |
93 | SR_API int sr_dev_probe_enable(const struct sr_dev_inst *sdi, int probenum, | |
94 | gboolean state) | |
95 | { | |
96 | GSList *l; | |
97 | struct sr_probe *probe; | |
98 | int ret; | |
99 | ||
100 | if (!sdi) | |
101 | return SR_ERR_ARG; | |
102 | ||
103 | ret = SR_ERR_ARG; | |
104 | for (l = sdi->probes; l; l = l->next) { | |
105 | probe = l->data; | |
106 | if (probe->index == probenum) { | |
107 | probe->enabled = state; | |
108 | ret = SR_OK; | |
109 | break; | |
110 | } | |
111 | } | |
112 | ||
113 | return ret; | |
114 | } | |
115 | ||
116 | /** | |
117 | * Add a trigger to the specified device (and the specified probe). | |
118 | * | |
119 | * If the specified probe of this device already has a trigger, it will | |
120 | * be silently replaced. | |
121 | * | |
122 | * @param sdi Must not be NULL. | |
123 | * @param probenum The probe number, starting from 0. | |
124 | * @param trigger Trigger string, in the format used by sigrok-cli | |
125 | * | |
126 | * @return SR_OK on success, or SR_ERR_ARG on invalid arguments. | |
127 | */ | |
128 | SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum, | |
129 | const char *trigger) | |
130 | { | |
131 | GSList *l; | |
132 | struct sr_probe *probe; | |
133 | int ret; | |
134 | ||
135 | if (!sdi) | |
136 | return SR_ERR_ARG; | |
137 | ||
138 | ret = SR_ERR_ARG; | |
139 | for (l = sdi->probes; l; l = l->next) { | |
140 | probe = l->data; | |
141 | if (probe->index == probenum) { | |
142 | /* If the probe already has a trigger, kill it first. */ | |
143 | g_free(probe->trigger); | |
144 | probe->trigger = g_strdup(trigger); | |
145 | ret = SR_OK; | |
146 | break; | |
147 | } | |
148 | } | |
149 | ||
150 | return ret; | |
151 | } | |
152 | ||
153 | /** | |
154 | * Determine whether the specified device has the specified capability. | |
155 | * | |
156 | * @param dev Pointer to the device instance to be checked. Must not be NULL. | |
157 | * If the device's 'driver' field is NULL (virtual device), this | |
158 | * function will always return FALSE (virtual devices don't have | |
159 | * a hardware capabilities list). | |
160 | * @param hwcap The capability that should be checked (whether it's supported | |
161 | * by the specified device). | |
162 | * | |
163 | * @return TRUE if the device has the specified capability, FALSE otherwise. | |
164 | * FALSE is also returned upon invalid input parameters or other | |
165 | * error conditions. | |
166 | */ | |
167 | SR_API gboolean sr_dev_has_hwcap(const struct sr_dev_inst *sdi, int hwcap) | |
168 | { | |
169 | const int *hwcaps; | |
170 | int i; | |
171 | ||
172 | if (!sdi || !sdi->driver) | |
173 | return FALSE; | |
174 | ||
175 | if (sdi->driver->info_get(SR_DI_HWCAPS, | |
176 | (const void **)&hwcaps, NULL) != SR_OK) | |
177 | return FALSE; | |
178 | ||
179 | for (i = 0; hwcaps[i]; i++) { | |
180 | if (hwcaps[i] == hwcap) | |
181 | return TRUE; | |
182 | } | |
183 | ||
184 | return FALSE; | |
185 | } | |
186 | ||
187 | SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status, | |
188 | const char *vendor, const char *model, const char *version) | |
189 | { | |
190 | struct sr_dev_inst *sdi; | |
191 | ||
192 | if (!(sdi = g_try_malloc(sizeof(struct sr_dev_inst)))) { | |
193 | sr_err("hwdriver: %s: sdi malloc failed", __func__); | |
194 | return NULL; | |
195 | } | |
196 | ||
197 | sdi->driver = NULL; | |
198 | sdi->index = index; | |
199 | sdi->status = status; | |
200 | sdi->inst_type = -1; | |
201 | sdi->vendor = vendor ? g_strdup(vendor) : NULL; | |
202 | sdi->model = model ? g_strdup(model) : NULL; | |
203 | sdi->version = version ? g_strdup(version) : NULL; | |
204 | sdi->probes = NULL; | |
205 | sdi->priv = NULL; | |
206 | ||
207 | return sdi; | |
208 | } | |
209 | ||
210 | SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi) | |
211 | { | |
212 | g_free(sdi->priv); | |
213 | g_free(sdi->vendor); | |
214 | g_free(sdi->model); | |
215 | g_free(sdi->version); | |
216 | g_free(sdi); | |
217 | } | |
218 | ||
219 | #ifdef HAVE_LIBUSB_1_0 | |
220 | ||
221 | SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus, | |
222 | uint8_t address, struct libusb_device_handle *hdl) | |
223 | { | |
224 | struct sr_usb_dev_inst *udi; | |
225 | ||
226 | if (!(udi = g_try_malloc(sizeof(struct sr_usb_dev_inst)))) { | |
227 | sr_err("hwdriver: %s: udi malloc failed", __func__); | |
228 | return NULL; | |
229 | } | |
230 | ||
231 | udi->bus = bus; | |
232 | udi->address = address; | |
233 | udi->devhdl = hdl; | |
234 | ||
235 | return udi; | |
236 | } | |
237 | ||
238 | SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb) | |
239 | { | |
240 | /* Avoid compiler warnings. */ | |
241 | (void)usb; | |
242 | ||
243 | /* Nothing to do for this device instance type. */ | |
244 | } | |
245 | ||
246 | #endif | |
247 | ||
248 | SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port, | |
249 | int fd) | |
250 | { | |
251 | struct sr_serial_dev_inst *serial; | |
252 | ||
253 | if (!(serial = g_try_malloc(sizeof(struct sr_serial_dev_inst)))) { | |
254 | sr_err("hwdriver: %s: serial malloc failed", __func__); | |
255 | return NULL; | |
256 | } | |
257 | ||
258 | serial->port = g_strdup(port); | |
259 | serial->fd = fd; | |
260 | ||
261 | return serial; | |
262 | } | |
263 | ||
264 | SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial) | |
265 | { | |
266 | g_free(serial->port); | |
267 | } | |
268 |