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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
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 <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | static const uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t drvopts[] = { | |
29 | SR_CONF_MULTIMETER, | |
30 | }; | |
31 | ||
32 | static const uint32_t devopts[] = { | |
33 | SR_CONF_CONTINUOUS, | |
34 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
35 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
36 | }; | |
37 | ||
38 | #define BUF_MAX 50 | |
39 | ||
40 | #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1" | |
41 | ||
42 | static struct sr_dev_driver norma_dmm_driver_info; | |
43 | static struct sr_dev_driver siemens_b102x_driver_info; | |
44 | ||
45 | static const char *get_brandstr(struct sr_dev_driver *drv) | |
46 | { | |
47 | return (drv == &norma_dmm_driver_info) ? "Norma" : "Siemens"; | |
48 | } | |
49 | ||
50 | static const char *get_typestr(int type, struct sr_dev_driver *drv) | |
51 | { | |
52 | static const char *nameref[5][2] = { | |
53 | {"DM910", "B1024"}, | |
54 | {"DM920", "B1025"}, | |
55 | {"DM930", "B1026"}, | |
56 | {"DM940", "B1027"}, | |
57 | {"DM950", "B1028"}, | |
58 | }; | |
59 | ||
60 | if ((type < 1) || (type > 5)) | |
61 | return "Unknown type!"; | |
62 | ||
63 | return nameref[type - 1][(drv == &siemens_b102x_driver_info)]; | |
64 | } | |
65 | ||
66 | static GSList *scan(struct sr_dev_driver *drv, GSList *options) | |
67 | { | |
68 | struct sr_dev_inst *sdi; | |
69 | struct dev_context *devc; | |
70 | struct sr_config *src; | |
71 | struct sr_serial_dev_inst *serial; | |
72 | GSList *l, *devices; | |
73 | int len, cnt, auxtype; | |
74 | const char *conn, *serialcomm; | |
75 | char *buf; | |
76 | char req[10]; | |
77 | ||
78 | devices = NULL; | |
79 | conn = serialcomm = NULL; | |
80 | ||
81 | for (l = options; l; l = l->next) { | |
82 | src = l->data; | |
83 | switch (src->key) { | |
84 | case SR_CONF_CONN: | |
85 | conn = g_variant_get_string(src->data, NULL); | |
86 | break; | |
87 | case SR_CONF_SERIALCOMM: | |
88 | serialcomm = g_variant_get_string(src->data, NULL); | |
89 | break; | |
90 | } | |
91 | } | |
92 | if (!conn) | |
93 | return NULL; | |
94 | if (!serialcomm) | |
95 | serialcomm = SERIALCOMM; | |
96 | ||
97 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
98 | ||
99 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
100 | return NULL; | |
101 | ||
102 | serial_flush(serial); | |
103 | ||
104 | buf = g_malloc(BUF_MAX); | |
105 | ||
106 | snprintf(req, sizeof(req), "%s\r\n", | |
107 | nmadmm_requests[NMADMM_REQ_IDN].req_str); | |
108 | g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ | |
109 | for (cnt = 0; cnt < 7; cnt++) { | |
110 | if (serial_write_blocking(serial, req, strlen(req), | |
111 | serial_timeout(serial, strlen(req))) < 0) { | |
112 | sr_err("Unable to send identification request."); | |
113 | g_free(buf); | |
114 | return NULL; | |
115 | } | |
116 | len = BUF_MAX; | |
117 | serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); | |
118 | if (!len) | |
119 | continue; | |
120 | buf[BUF_MAX - 1] = '\0'; | |
121 | ||
122 | /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950). */ | |
123 | if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { | |
124 | auxtype = xgittoint(buf[7]); | |
125 | sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); | |
126 | ||
127 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
128 | sdi->status = SR_ST_INACTIVE; | |
129 | sdi->vendor = g_strdup(get_brandstr(drv)); | |
130 | sdi->model = g_strdup(get_typestr(auxtype, drv)); | |
131 | sdi->version = g_strdup(buf + 9); | |
132 | devc = g_malloc0(sizeof(struct dev_context)); | |
133 | sr_sw_limits_init(&devc->limits); | |
134 | devc->type = auxtype; | |
135 | sdi->conn = serial; | |
136 | sdi->priv = devc; | |
137 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); | |
138 | devices = g_slist_append(devices, sdi); | |
139 | break; | |
140 | } | |
141 | ||
142 | /* | |
143 | * The interface of the DM9x0 contains a cap that needs to | |
144 | * charge for up to 10s before the interface works, if not | |
145 | * powered externally. Therefore wait a little to improve | |
146 | * chances. | |
147 | */ | |
148 | if (cnt == 3) { | |
149 | sr_info("Waiting 5s to allow interface to settle."); | |
150 | g_usleep(5 * 1000 * 1000); | |
151 | } | |
152 | } | |
153 | ||
154 | g_free(buf); | |
155 | ||
156 | serial_close(serial); | |
157 | if (!devices) | |
158 | sr_serial_dev_inst_free(serial); | |
159 | ||
160 | return std_scan_complete(drv, devices); | |
161 | } | |
162 | ||
163 | static int config_set(uint32_t key, GVariant *data, | |
164 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
165 | { | |
166 | struct dev_context *devc; | |
167 | ||
168 | (void)cg; | |
169 | ||
170 | devc = sdi->priv; | |
171 | ||
172 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
173 | } | |
174 | ||
175 | static int config_list(uint32_t key, GVariant **data, | |
176 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
177 | { | |
178 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
179 | } | |
180 | ||
181 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
182 | { | |
183 | struct dev_context *devc; | |
184 | struct sr_serial_dev_inst *serial; | |
185 | ||
186 | devc = sdi->priv; | |
187 | ||
188 | sr_sw_limits_acquisition_start(&devc->limits); | |
189 | std_session_send_df_header(sdi); | |
190 | ||
191 | serial = sdi->conn; | |
192 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
193 | norma_dmm_receive_data, (void *)sdi); | |
194 | ||
195 | return SR_OK; | |
196 | } | |
197 | ||
198 | static struct sr_dev_driver norma_dmm_driver_info = { | |
199 | .name = "norma-dmm", | |
200 | .longname = "Norma DM9x0 DMMs", | |
201 | .api_version = 1, | |
202 | .init = std_init, | |
203 | .cleanup = std_cleanup, | |
204 | .scan = scan, | |
205 | .dev_list = std_dev_list, | |
206 | .dev_clear = std_dev_clear, | |
207 | .config_get = NULL, | |
208 | .config_set = config_set, | |
209 | .config_list = config_list, | |
210 | .dev_open = std_serial_dev_open, | |
211 | .dev_close = std_serial_dev_close, | |
212 | .dev_acquisition_start = dev_acquisition_start, | |
213 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
214 | .context = NULL, | |
215 | }; | |
216 | SR_REGISTER_DEV_DRIVER(norma_dmm_driver_info); | |
217 | ||
218 | static struct sr_dev_driver siemens_b102x_driver_info = { | |
219 | .name = "siemens-b102x", | |
220 | .longname = "Siemens B102x DMMs", | |
221 | .api_version = 1, | |
222 | .init = std_init, | |
223 | .cleanup = std_cleanup, | |
224 | .scan = scan, | |
225 | .dev_list = std_dev_list, | |
226 | .dev_clear = std_dev_clear, | |
227 | .config_get = NULL, | |
228 | .config_set = config_set, | |
229 | .config_list = config_list, | |
230 | .dev_open = std_serial_dev_open, | |
231 | .dev_close = std_serial_dev_close, | |
232 | .dev_acquisition_start = dev_acquisition_start, | |
233 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
234 | .context = NULL, | |
235 | }; | |
236 | SR_REGISTER_DEV_DRIVER(siemens_b102x_driver_info); |