]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2018-2020 Andreas Sandberg <andreas@sandberg.pp.se> | |
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 | ||
22 | #include <glib.h> | |
23 | #include <fcntl.h> | |
24 | #include <libsigrok/libsigrok.h> | |
25 | #include <string.h> | |
26 | #include <sys/types.h> | |
27 | #include <sys/stat.h> | |
28 | ||
29 | #include "libsigrok-internal.h" | |
30 | #include "protocol.h" | |
31 | ||
32 | #define RDTECH_UM_SERIALCOMM "115200/8n1" | |
33 | ||
34 | static const uint32_t scanopts[] = { | |
35 | SR_CONF_CONN, | |
36 | SR_CONF_SERIALCOMM, | |
37 | }; | |
38 | ||
39 | static const uint32_t drvopts[] = { | |
40 | SR_CONF_ENERGYMETER, | |
41 | }; | |
42 | ||
43 | static const uint32_t devopts[] = { | |
44 | SR_CONF_CONTINUOUS, | |
45 | SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET, | |
46 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
47 | }; | |
48 | ||
49 | static GSList *rdtech_um_scan(struct sr_dev_driver *di, | |
50 | const char *conn, const char *serialcomm) | |
51 | { | |
52 | struct sr_serial_dev_inst *serial; | |
53 | const struct rdtech_um_profile *p; | |
54 | GSList *devices; | |
55 | struct dev_context *devc; | |
56 | struct sr_dev_inst *sdi; | |
57 | size_t ch_idx; | |
58 | const struct rdtech_um_channel_desc *pch; | |
59 | struct sr_channel *ch; | |
60 | struct feed_queue_analog *feed; | |
61 | ||
62 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
63 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
64 | goto err_out; | |
65 | ||
66 | p = rdtech_um_probe(serial); | |
67 | if (!p) { | |
68 | sr_err("Failed to find a supported RDTech UM device."); | |
69 | goto err_out_serial; | |
70 | } | |
71 | ||
72 | devc = g_malloc0(sizeof(*devc)); | |
73 | sr_sw_limits_init(&devc->limits); | |
74 | devc->profile = p; | |
75 | ||
76 | sdi = g_malloc0(sizeof(*sdi)); | |
77 | sdi->priv = devc; | |
78 | sdi->status = SR_ST_INACTIVE; | |
79 | sdi->vendor = g_strdup("RDTech"); | |
80 | sdi->model = g_strdup(p->model_name); | |
81 | sdi->version = NULL; | |
82 | sdi->inst_type = SR_INST_SERIAL; | |
83 | sdi->conn = serial; | |
84 | ||
85 | devc->feeds = g_malloc0(p->channel_count * sizeof(devc->feeds[0])); | |
86 | for (ch_idx = 0; ch_idx < p->channel_count; ch_idx++) { | |
87 | pch = &p->channels[ch_idx]; | |
88 | ch = sr_channel_new(sdi, ch_idx, | |
89 | SR_CHANNEL_ANALOG, TRUE, pch->name); | |
90 | feed = feed_queue_analog_alloc(sdi, 1, pch->digits, ch); | |
91 | feed_queue_analog_mq_unit(feed, pch->mq, 0, pch->unit); | |
92 | feed_queue_analog_scale_offset(feed, &pch->scale, NULL); | |
93 | devc->feeds[ch_idx] = feed; | |
94 | } | |
95 | ||
96 | devices = g_slist_append(NULL, sdi); | |
97 | serial_close(serial); | |
98 | if (!devices) | |
99 | sr_serial_dev_inst_free(serial); | |
100 | ||
101 | return std_scan_complete(di, devices); | |
102 | ||
103 | err_out_serial: | |
104 | serial_close(serial); | |
105 | err_out: | |
106 | sr_serial_dev_inst_free(serial); | |
107 | ||
108 | return NULL; | |
109 | } | |
110 | ||
111 | static void clear_helper(struct dev_context *devc) | |
112 | { | |
113 | const struct rdtech_um_profile *p; | |
114 | size_t ch_idx; | |
115 | ||
116 | if (!devc) | |
117 | return; | |
118 | ||
119 | p = devc->profile; | |
120 | if (p && devc->feeds) { | |
121 | for (ch_idx = 0; ch_idx < p->channel_count; ch_idx++) | |
122 | feed_queue_analog_free(devc->feeds[ch_idx]); | |
123 | g_free(devc->feeds); | |
124 | } | |
125 | } | |
126 | ||
127 | static int dev_clear(const struct sr_dev_driver *di) | |
128 | { | |
129 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); | |
130 | } | |
131 | ||
132 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
133 | { | |
134 | const char *conn; | |
135 | const char *serialcomm; | |
136 | ||
137 | conn = NULL; | |
138 | serialcomm = RDTECH_UM_SERIALCOMM; | |
139 | (void)sr_serial_extract_options(options, &conn, &serialcomm); | |
140 | if (!conn) | |
141 | return NULL; | |
142 | ||
143 | return rdtech_um_scan(di, conn, serialcomm); | |
144 | } | |
145 | ||
146 | static int config_get(uint32_t key, GVariant **data, | |
147 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
148 | { | |
149 | struct dev_context *devc; | |
150 | ||
151 | (void)cg; | |
152 | ||
153 | devc = sdi->priv; | |
154 | ||
155 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
156 | } | |
157 | ||
158 | static int config_set(uint32_t key, GVariant *data, | |
159 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
160 | { | |
161 | struct dev_context *devc; | |
162 | ||
163 | (void)cg; | |
164 | ||
165 | devc = sdi->priv; | |
166 | ||
167 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
168 | } | |
169 | ||
170 | static int config_list(uint32_t key, GVariant **data, | |
171 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
172 | { | |
173 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
174 | } | |
175 | ||
176 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
177 | { | |
178 | struct dev_context *devc; | |
179 | struct sr_serial_dev_inst *serial; | |
180 | ||
181 | devc = sdi->priv; | |
182 | sr_sw_limits_acquisition_start(&devc->limits); | |
183 | std_session_send_df_header(sdi); | |
184 | ||
185 | serial = sdi->conn; | |
186 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
187 | rdtech_um_receive_data, (void *)sdi); | |
188 | ||
189 | return rdtech_um_poll(sdi, TRUE); | |
190 | } | |
191 | ||
192 | static struct sr_dev_driver rdtech_um_driver_info = { | |
193 | .name = "rdtech-um", | |
194 | .longname = "RDTech UMxx USB power meter", | |
195 | .api_version = 1, | |
196 | .init = std_init, | |
197 | .cleanup = std_cleanup, | |
198 | .scan = scan, | |
199 | .dev_list = std_dev_list, | |
200 | .dev_clear = dev_clear, | |
201 | .config_get = config_get, | |
202 | .config_set = config_set, | |
203 | .config_list = config_list, | |
204 | .dev_open = std_serial_dev_open, | |
205 | .dev_close = std_serial_dev_close, | |
206 | .dev_acquisition_start = dev_acquisition_start, | |
207 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
208 | .context = NULL, | |
209 | }; | |
210 | SR_REGISTER_DEV_DRIVER(rdtech_um_driver_info); |