]>
Commit | Line | Data |
---|---|---|
20cbc785 AG |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.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 | ||
20cbc785 AG |
20 | #include "protocol.h" |
21 | ||
601fb67c AG |
22 | static const int hwopts[] = { |
23 | SR_CONF_CONN, | |
24 | SR_CONF_SERIALCOMM, | |
25 | 0, | |
26 | }; | |
27 | ||
28 | static const int hwcaps[] = { | |
29 | SR_CONF_MULTIMETER, | |
30 | SR_CONF_LIMIT_SAMPLES, | |
31 | SR_CONF_CONTINUOUS, | |
32 | SR_CONF_LIMIT_MSEC, | |
33 | 0, | |
34 | }; | |
35 | ||
c5d6f5cc UH |
36 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info; |
37 | static struct sr_dev_driver *di = &brymen_bm857_driver_info; | |
20cbc785 | 38 | |
601fb67c AG |
39 | static int hw_init(struct sr_context *sr_ctx) |
40 | { | |
943e94f5 | 41 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); |
601fb67c AG |
42 | } |
43 | ||
44 | static void free_instance(void *inst) | |
45 | { | |
46 | struct sr_dev_inst *sdi; | |
47 | struct dev_context *devc; | |
c5d6f5cc | 48 | |
601fb67c AG |
49 | if (!(sdi = inst)) |
50 | return; | |
51 | if (!(devc = sdi->priv)) | |
52 | return; | |
53 | sr_serial_dev_inst_free(devc->serial); | |
54 | sr_dev_inst_free(sdi); | |
55 | } | |
56 | ||
20cbc785 AG |
57 | /* Properly close and free all devices. */ |
58 | static int clear_instances(void) | |
59 | { | |
20cbc785 | 60 | struct drv_context *drvc; |
20cbc785 AG |
61 | |
62 | if (!(drvc = di->priv)) | |
63 | return SR_OK; | |
64 | ||
601fb67c | 65 | g_slist_free_full(drvc->instances, free_instance); |
20cbc785 AG |
66 | drvc->instances = NULL; |
67 | ||
68 | return SR_OK; | |
69 | } | |
70 | ||
601fb67c | 71 | static GSList *brymen_scan(const char *conn, const char *serialcomm) |
20cbc785 | 72 | { |
601fb67c AG |
73 | struct sr_dev_inst *sdi; |
74 | struct dev_context *devc; | |
20cbc785 | 75 | struct drv_context *drvc; |
601fb67c AG |
76 | struct sr_probe *probe; |
77 | struct sr_serial_dev_inst *serial; | |
78 | GSList *devices; | |
79 | int ret; | |
c5d6f5cc UH |
80 | uint8_t buf[128]; |
81 | size_t len; | |
20cbc785 | 82 | |
601fb67c AG |
83 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) |
84 | return NULL; | |
85 | ||
c5d6f5cc | 86 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) |
601fb67c AG |
87 | return NULL; |
88 | ||
89 | sr_info("Probing port %s.", conn); | |
90 | ||
91 | devices = NULL; | |
92 | ||
93 | /* Request reading */ | |
c5d6f5cc UH |
94 | if ((ret = brymen_packet_request(serial)) < 0) { |
95 | sr_err("Unable to send command: %d.", ret); | |
601fb67c | 96 | goto scan_cleanup; |
20cbc785 AG |
97 | } |
98 | ||
c5d6f5cc | 99 | len = 128; |
601fb67c AG |
100 | ret = brymen_stream_detect(serial, buf, &len, brymen_packet_length, |
101 | brymen_packet_is_valid, 1000, 9600); | |
102 | if (ret != SR_OK) | |
103 | goto scan_cleanup; | |
20cbc785 | 104 | |
601fb67c AG |
105 | sr_info("Found device on port %s.", conn); |
106 | ||
107 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Brymen", "BM85x", ""))) | |
108 | goto scan_cleanup; | |
109 | ||
110 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
111 | sr_err("Device context malloc failed."); | |
112 | goto scan_cleanup; | |
113 | } | |
114 | ||
115 | devc->serial = serial; | |
116 | drvc = di->priv; | |
117 | sdi->priv = devc; | |
118 | sdi->driver = di; | |
119 | ||
120 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) | |
121 | goto scan_cleanup; | |
122 | ||
123 | sdi->probes = g_slist_append(sdi->probes, probe); | |
124 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
125 | devices = g_slist_append(devices, sdi); | |
126 | ||
601fb67c AG |
127 | scan_cleanup: |
128 | serial_close(serial); | |
129 | ||
130 | return devices; | |
20cbc785 AG |
131 | } |
132 | ||
133 | static GSList *hw_scan(GSList *options) | |
134 | { | |
135 | struct drv_context *drvc; | |
601fb67c AG |
136 | struct sr_config *src; |
137 | GSList *devices, *l; | |
138 | const char *conn, *serialcomm; | |
20cbc785 AG |
139 | |
140 | (void)options; | |
141 | ||
142 | devices = NULL; | |
143 | drvc = di->priv; | |
144 | drvc->instances = NULL; | |
145 | ||
601fb67c AG |
146 | conn = serialcomm = NULL; |
147 | for (l = options; l; l = l->next) { | |
148 | src = l->data; | |
149 | switch (src->key) { | |
c5d6f5cc UH |
150 | case SR_CONF_CONN: |
151 | conn = src->value; | |
152 | break; | |
153 | case SR_CONF_SERIALCOMM: | |
154 | serialcomm = src->value; | |
155 | break; | |
601fb67c AG |
156 | } |
157 | } | |
158 | if (!conn) { | |
159 | return NULL; | |
160 | } | |
161 | ||
162 | if (serialcomm) { | |
163 | /* Use the provided comm specs. */ | |
164 | devices = brymen_scan(conn, serialcomm); | |
165 | } else { | |
c5d6f5cc | 166 | /* But 9600/8n1 should work all of the time. */ |
601fb67c AG |
167 | devices = brymen_scan(conn, "9600/8n1/dtr=1/rts=1"); |
168 | } | |
20cbc785 AG |
169 | |
170 | return devices; | |
171 | } | |
172 | ||
173 | static GSList *hw_dev_list(void) | |
174 | { | |
0e94d524 | 175 | return ((struct drv_context *)(di->priv))->instances; |
20cbc785 AG |
176 | } |
177 | ||
178 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
179 | { | |
601fb67c AG |
180 | struct dev_context *devc; |
181 | ||
182 | if (!(devc = sdi->priv)) { | |
183 | sr_err("sdi->priv was NULL."); | |
184 | return SR_ERR_BUG; | |
185 | } | |
186 | ||
187 | if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
188 | return SR_ERR; | |
189 | ||
190 | sdi->status = SR_ST_ACTIVE; | |
20cbc785 AG |
191 | |
192 | return SR_OK; | |
193 | } | |
194 | ||
195 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
196 | { | |
601fb67c AG |
197 | struct dev_context *devc; |
198 | ||
961009b0 | 199 | devc = sdi->priv; |
601fb67c AG |
200 | |
201 | if (devc->serial && devc->serial->fd != -1) { | |
202 | serial_close(devc->serial); | |
203 | sdi->status = SR_ST_INACTIVE; | |
204 | } | |
20cbc785 AG |
205 | |
206 | return SR_OK; | |
207 | } | |
208 | ||
209 | static int hw_cleanup(void) | |
210 | { | |
211 | clear_instances(); | |
212 | ||
20cbc785 AG |
213 | return SR_OK; |
214 | } | |
215 | ||
601fb67c | 216 | static int config_list(int key, const void **data, |
20cbc785 AG |
217 | const struct sr_dev_inst *sdi) |
218 | { | |
601fb67c AG |
219 | (void)sdi; |
220 | ||
221 | switch (key) { | |
c5d6f5cc UH |
222 | case SR_CONF_SCAN_OPTIONS: |
223 | *data = hwopts; | |
224 | break; | |
225 | case SR_CONF_DEVICE_OPTIONS: | |
226 | *data = hwcaps; | |
227 | break; | |
20cbc785 | 228 | default: |
601fb67c | 229 | sr_err("Unknown config key: %d.", key); |
20cbc785 AG |
230 | return SR_ERR_ARG; |
231 | } | |
232 | ||
233 | return SR_OK; | |
234 | } | |
235 | ||
6fab7b8f | 236 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
20cbc785 | 237 | { |
601fb67c | 238 | struct dev_context *devc; |
20cbc785 AG |
239 | int ret; |
240 | ||
241 | if (sdi->status != SR_ST_ACTIVE) { | |
242 | sr_err("Device inactive, can't set config options."); | |
243 | return SR_ERR; | |
244 | } | |
245 | ||
601fb67c AG |
246 | if (!(devc = sdi->priv)) { |
247 | sr_err("sdi->priv was NULL."); | |
248 | return SR_ERR_BUG; | |
249 | } | |
250 | ||
20cbc785 | 251 | ret = SR_OK; |
601fb67c | 252 | switch (id) { |
c5d6f5cc UH |
253 | case SR_CONF_LIMIT_SAMPLES: |
254 | devc->limit_samples = *(const uint64_t *)value; | |
601fb67c | 255 | break; |
c5d6f5cc UH |
256 | case SR_CONF_LIMIT_MSEC: |
257 | devc->limit_msec = *(const uint64_t *)value; | |
601fb67c | 258 | break; |
20cbc785 | 259 | default: |
601fb67c | 260 | sr_err("Unknown hardware capability: %d.", id); |
20cbc785 AG |
261 | ret = SR_ERR_ARG; |
262 | } | |
263 | ||
264 | return ret; | |
265 | } | |
266 | ||
267 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, | |
268 | void *cb_data) | |
269 | { | |
601fb67c AG |
270 | struct dev_context *devc; |
271 | ||
272 | if (!(devc = sdi->priv)) { | |
273 | sr_err("sdi->priv was NULL."); | |
274 | return SR_ERR_BUG; | |
275 | } | |
276 | ||
601fb67c AG |
277 | devc->cb_data = cb_data; |
278 | ||
279 | /* | |
280 | * Reset the number of samples to take. If we've already collected our | |
281 | * quota, but we start a new session, and don't reset this, we'll just | |
282 | * quit without acquiring any new samples. | |
283 | */ | |
284 | devc->num_samples = 0; | |
285 | devc->starttime = g_get_monotonic_time(); | |
286 | ||
287 | /* Send header packet to the session bus. */ | |
4afdfd46 | 288 | std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); |
601fb67c AG |
289 | |
290 | /* Poll every 50ms, or whenever some data comes in. */ | |
291 | sr_source_add(devc->serial->fd, G_IO_IN, 50, | |
292 | brymen_dmm_receive_data, (void *)sdi); | |
20cbc785 AG |
293 | |
294 | return SR_OK; | |
295 | } | |
296 | ||
601fb67c | 297 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
20cbc785 | 298 | { |
cd2f0fe2 UH |
299 | return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close, |
300 | ((struct dev_context *)(sdi->priv))->serial, DRIVER_LOG_DOMAIN); | |
20cbc785 AG |
301 | } |
302 | ||
c5d6f5cc UH |
303 | SR_PRIV struct sr_dev_driver brymen_bm857_driver_info = { |
304 | .name = "brymen-bm857", | |
305 | .longname = "Brymen BM857", | |
20cbc785 AG |
306 | .api_version = 1, |
307 | .init = hw_init, | |
308 | .cleanup = hw_cleanup, | |
309 | .scan = hw_scan, | |
310 | .dev_list = hw_dev_list, | |
311 | .dev_clear = clear_instances, | |
6fab7b8f UH |
312 | .config_get = NULL, |
313 | .config_set = config_set, | |
314 | .config_list = config_list, | |
20cbc785 AG |
315 | .dev_open = hw_dev_open, |
316 | .dev_close = hw_dev_close, | |
20cbc785 AG |
317 | .dev_acquisition_start = hw_dev_acquisition_start, |
318 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
319 | .priv = NULL, | |
320 | }; |