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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 | /** | |
26 | * Set the name of the specified probe in the specified device. | |
27 | * | |
28 | * If the probe already has a different name assigned to it, it will be | |
29 | * removed, and the new name will be saved instead. | |
30 | * | |
31 | * @param dev TODO | |
32 | * @param probenum The number of the probe whose name to set. | |
33 | * Note that the probe numbers start at 1 (not 0!). | |
34 | * @param name The new name that the specified probe should get. | |
35 | * | |
36 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR | |
37 | * upon other errors. | |
38 | * If something other than SR_OK is returned, 'dev' is unchanged. | |
39 | */ | |
40 | SR_API int sr_dev_probe_name_set(struct sr_dev *dev, int probenum, | |
41 | const char *name) | |
42 | { | |
43 | struct sr_probe *p; | |
44 | ||
45 | if (!dev) { | |
46 | sr_err("dev: %s: dev was NULL", __func__); | |
47 | return SR_ERR_ARG; | |
48 | } | |
49 | ||
50 | p = sr_dev_probe_find(dev, probenum); | |
51 | if (!p) { | |
52 | sr_err("dev: %s: probe %d not found", __func__, probenum); | |
53 | return SR_ERR; /* TODO: More specific error? */ | |
54 | } | |
55 | ||
56 | /* TODO: Sanity check on 'name'. */ | |
57 | ||
58 | /* If the probe already has a name, kill it first. */ | |
59 | g_free(p->name); | |
60 | ||
61 | p->name = g_strdup(name); | |
62 | ||
63 | return SR_OK; | |
64 | } | |
65 | ||
66 | /** | |
67 | * Enable or disable a probe on the specified device. | |
68 | * | |
69 | * @param sdi The device instance the probe is connected to. | |
70 | * @param probenum The probe number, starting from 0. | |
71 | * @param state TRUE to enable the probe, FALSE to disable. | |
72 | * | |
73 | * @return SR_OK on success, or SR_ERR_ARG on invalid arguments. | |
74 | */ | |
75 | SR_API int sr_dev_probe_enable(const struct sr_dev_inst *sdi, int probenum, | |
76 | gboolean state) | |
77 | { | |
78 | GSList *l; | |
79 | struct sr_probe *probe; | |
80 | int ret; | |
81 | ||
82 | if (!sdi) | |
83 | return SR_ERR_ARG; | |
84 | ||
85 | ret = SR_ERR_ARG; | |
86 | for (l = sdi->probes; l; l = l->next) { | |
87 | probe = l->data; | |
88 | if (probe->index == probenum) { | |
89 | probe->enabled = state; | |
90 | ret = SR_OK; | |
91 | break; | |
92 | } | |
93 | } | |
94 | ||
95 | return ret; | |
96 | } | |
97 | ||
98 | /** | |
99 | * Add a trigger to the specified device (and the specified probe). | |
100 | * | |
101 | * If the specified probe of this device already has a trigger, it will | |
102 | * be silently replaced. | |
103 | * | |
104 | * @param sdi Must not be NULL. | |
105 | * @param probenum The number of the probe. | |
106 | * Note that the probe numbers start at 1 (not 0!). | |
107 | * @param trigger trigger string, in the format used by sigrok-cli | |
108 | * | |
109 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments. | |
110 | */ | |
111 | SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum, | |
112 | const char *trigger) | |
113 | { | |
114 | GSList *l; | |
115 | struct sr_probe *probe; | |
116 | int ret; | |
117 | ||
118 | if (!sdi) | |
119 | return SR_ERR_ARG; | |
120 | ||
121 | ret = SR_ERR_ARG; | |
122 | for (l = sdi->probes; l; l = l->next) { | |
123 | probe = l->data; | |
124 | if (probe->index == probenum) { | |
125 | /* If the probe already has a trigger, kill it first. */ | |
126 | g_free(probe->trigger); | |
127 | probe->trigger = g_strdup(trigger); | |
128 | ret = SR_OK; | |
129 | break; | |
130 | } | |
131 | } | |
132 | ||
133 | return ret; | |
134 | } | |
135 | ||
136 | /** | |
137 | * Determine whether the specified device has the specified capability. | |
138 | * | |
139 | * @param dev Pointer to the device instance to be checked. Must not be NULL. | |
140 | * If the device's 'driver' field is NULL (virtual device), this | |
141 | * function will always return FALSE (virtual devices don't have | |
142 | * a hardware capabilities list). | |
143 | * @param hwcap The capability that should be checked (whether it's supported | |
144 | * by the specified device). | |
145 | * | |
146 | * @return TRUE, if the device has the specified capability, FALSE otherwise. | |
147 | * FALSE is also returned upon invalid input parameters or other | |
148 | * error conditions. | |
149 | */ | |
150 | SR_API gboolean sr_dev_has_hwcap(const struct sr_dev_inst *sdi, int hwcap) | |
151 | { | |
152 | const int *hwcaps; | |
153 | int i; | |
154 | ||
155 | if (!sdi || !sdi->driver) | |
156 | return FALSE; | |
157 | ||
158 | if (sdi->driver->info_get(SR_DI_HWCAPS, | |
159 | (const void **)&hwcaps, NULL) != SR_OK) | |
160 | return FALSE; | |
161 | ||
162 | for (i = 0; hwcaps[i]; i++) { | |
163 | if (hwcaps[i] == hwcap) | |
164 | return TRUE; | |
165 | } | |
166 | ||
167 | return FALSE; | |
168 | } | |
169 |