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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 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 <glib.h> | |
21 | #include "libsigrok.h" | |
22 | #include "libsigrok-internal.h" | |
23 | #include "protocol.h" | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <errno.h> | |
28 | #include <string.h> | |
29 | ||
30 | /* The Colead SL-5868P uses this. */ | |
31 | #define SERIALCOMM "2400/8n1" | |
32 | ||
33 | static const int32_t hwopts[] = { | |
34 | SR_CONF_CONN, | |
35 | SR_CONF_SERIALCOMM, | |
36 | }; | |
37 | ||
38 | static const int32_t hwcaps[] = { | |
39 | SR_CONF_SOUNDLEVELMETER, | |
40 | SR_CONF_LIMIT_SAMPLES, | |
41 | SR_CONF_LIMIT_MSEC, | |
42 | SR_CONF_CONTINUOUS, | |
43 | }; | |
44 | ||
45 | SR_PRIV struct sr_dev_driver colead_slm_driver_info; | |
46 | static struct sr_dev_driver *di = &colead_slm_driver_info; | |
47 | ||
48 | /* Properly close and free all devices. */ | |
49 | static int clear_instances(void) | |
50 | { | |
51 | struct sr_dev_inst *sdi; | |
52 | struct drv_context *drvc; | |
53 | struct dev_context *devc; | |
54 | GSList *l; | |
55 | ||
56 | if (!(drvc = di->priv)) | |
57 | return SR_OK; | |
58 | ||
59 | for (l = drvc->instances; l; l = l->next) { | |
60 | if (!(sdi = l->data)) | |
61 | continue; | |
62 | if (!(devc = sdi->priv)) | |
63 | continue; | |
64 | sr_serial_dev_inst_free(devc->serial); | |
65 | sr_dev_inst_free(sdi); | |
66 | } | |
67 | g_slist_free(drvc->instances); | |
68 | drvc->instances = NULL; | |
69 | ||
70 | return SR_OK; | |
71 | } | |
72 | ||
73 | static int hw_init(struct sr_context *sr_ctx) | |
74 | { | |
75 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); | |
76 | } | |
77 | ||
78 | static GSList *hw_scan(GSList *options) | |
79 | { | |
80 | struct drv_context *drvc; | |
81 | struct dev_context *devc; | |
82 | struct sr_dev_inst *sdi; | |
83 | struct sr_config *src; | |
84 | struct sr_probe *probe; | |
85 | GSList *devices, *l; | |
86 | const char *conn, *serialcomm; | |
87 | ||
88 | drvc = di->priv; | |
89 | drvc->instances = NULL; | |
90 | ||
91 | devices = NULL; | |
92 | ||
93 | conn = serialcomm = NULL; | |
94 | for (l = options; l; l = l->next) { | |
95 | src = l->data; | |
96 | switch (src->key) { | |
97 | case SR_CONF_CONN: | |
98 | conn = g_variant_get_string(src->data, NULL); | |
99 | break; | |
100 | case SR_CONF_SERIALCOMM: | |
101 | serialcomm = g_variant_get_string(src->data, NULL); | |
102 | break; | |
103 | } | |
104 | } | |
105 | if (!conn) | |
106 | return NULL; | |
107 | if (!serialcomm) | |
108 | serialcomm = SERIALCOMM; | |
109 | ||
110 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead", | |
111 | "SL-5868P", NULL))) | |
112 | return NULL; | |
113 | ||
114 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
115 | sr_dbg("Device context malloc failed."); | |
116 | return NULL; | |
117 | } | |
118 | ||
119 | if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
120 | return NULL; | |
121 | ||
122 | sdi->priv = devc; | |
123 | sdi->driver = di; | |
124 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
125 | return NULL; | |
126 | sdi->probes = g_slist_append(sdi->probes, probe); | |
127 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
128 | devices = g_slist_append(devices, sdi); | |
129 | ||
130 | return devices; | |
131 | } | |
132 | ||
133 | static GSList *hw_dev_list(void) | |
134 | { | |
135 | return ((struct drv_context *)(di->priv))->instances; | |
136 | } | |
137 | ||
138 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
139 | { | |
140 | struct dev_context *devc; | |
141 | ||
142 | if (!(devc = sdi->priv)) { | |
143 | sr_err("sdi->priv was NULL."); | |
144 | return SR_ERR_BUG; | |
145 | } | |
146 | ||
147 | if (serial_open(devc->serial, SERIAL_RDWR) != SR_OK) | |
148 | return SR_ERR; | |
149 | ||
150 | sdi->status = SR_ST_ACTIVE; | |
151 | ||
152 | return SR_OK; | |
153 | } | |
154 | ||
155 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
156 | { | |
157 | struct dev_context *devc; | |
158 | ||
159 | devc = sdi->priv; | |
160 | ||
161 | if (devc->serial && devc->serial->fd != -1) { | |
162 | serial_close(devc->serial); | |
163 | sdi->status = SR_ST_INACTIVE; | |
164 | } | |
165 | ||
166 | return SR_OK; | |
167 | } | |
168 | ||
169 | static int hw_cleanup(void) | |
170 | { | |
171 | clear_instances(); | |
172 | ||
173 | return SR_OK; | |
174 | } | |
175 | ||
176 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) | |
177 | { | |
178 | struct dev_context *devc; | |
179 | ||
180 | if (sdi->status != SR_ST_ACTIVE) | |
181 | return SR_ERR; | |
182 | ||
183 | if (!(devc = sdi->priv)) { | |
184 | sr_err("sdi->priv was NULL."); | |
185 | return SR_ERR_BUG; | |
186 | } | |
187 | ||
188 | switch (id) { | |
189 | case SR_CONF_LIMIT_MSEC: | |
190 | /* TODO: not yet implemented */ | |
191 | if (g_variant_get_uint64(data) == 0) { | |
192 | sr_err("LIMIT_MSEC can't be 0."); | |
193 | return SR_ERR; | |
194 | } | |
195 | devc->limit_msec = g_variant_get_uint64(data);; | |
196 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
197 | devc->limit_msec); | |
198 | break; | |
199 | case SR_CONF_LIMIT_SAMPLES: | |
200 | devc->limit_samples = g_variant_get_uint64(data); | |
201 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
202 | devc->limit_samples); | |
203 | break; | |
204 | default: | |
205 | sr_err("Unknown capability: %d.", id); | |
206 | return SR_ERR; | |
207 | break; | |
208 | } | |
209 | ||
210 | return SR_OK; | |
211 | } | |
212 | ||
213 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
214 | { | |
215 | ||
216 | (void)sdi; | |
217 | ||
218 | switch (key) { | |
219 | case SR_CONF_SCAN_OPTIONS: | |
220 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
221 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
222 | break; | |
223 | case SR_CONF_DEVICE_OPTIONS: | |
224 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
225 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
226 | break; | |
227 | default: | |
228 | return SR_ERR_ARG; | |
229 | } | |
230 | ||
231 | return SR_OK; | |
232 | } | |
233 | ||
234 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, | |
235 | void *cb_data) | |
236 | { | |
237 | struct dev_context *devc; | |
238 | ||
239 | if (!(devc = sdi->priv)) { | |
240 | sr_err("sdi->priv was NULL."); | |
241 | return SR_ERR_BUG; | |
242 | } | |
243 | ||
244 | devc->cb_data = cb_data; | |
245 | ||
246 | /* Send header packet to the session bus. */ | |
247 | std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); | |
248 | ||
249 | /* Poll every 150ms, or whenever some data comes in. */ | |
250 | sr_source_add(devc->serial->fd, G_IO_IN, 150, colead_slm_receive_data, | |
251 | (void *)sdi); | |
252 | ||
253 | return SR_OK; | |
254 | } | |
255 | ||
256 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
257 | { | |
258 | return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close, | |
259 | ((struct dev_context *)(sdi->priv))->serial, DRIVER_LOG_DOMAIN); | |
260 | } | |
261 | ||
262 | SR_PRIV struct sr_dev_driver colead_slm_driver_info = { | |
263 | .name = "colead-slm", | |
264 | .longname = "Colead SLM", | |
265 | .api_version = 1, | |
266 | .init = hw_init, | |
267 | .cleanup = hw_cleanup, | |
268 | .scan = hw_scan, | |
269 | .dev_list = hw_dev_list, | |
270 | .dev_clear = clear_instances, | |
271 | .config_get = NULL, | |
272 | .config_set = config_set, | |
273 | .config_list = config_list, | |
274 | .dev_open = hw_dev_open, | |
275 | .dev_close = hw_dev_close, | |
276 | .dev_acquisition_start = hw_dev_acquisition_start, | |
277 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
278 | .priv = NULL, | |
279 | }; |