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1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 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 | #include <glib.h> | |
22 | #include <sys/types.h> | |
23 | #include <sys/stat.h> | |
24 | #include <fcntl.h> | |
25 | #include <string.h> | |
26 | #include <libsigrok/libsigrok.h> | |
27 | #include "libsigrok-internal.h" | |
28 | #include "protocol.h" | |
29 | ||
30 | #define RDTECH_TC_SERIALCOMM "115200/8n1" | |
31 | ||
32 | static const uint32_t scanopts[] = { | |
33 | SR_CONF_CONN, | |
34 | SR_CONF_SERIALCOMM, | |
35 | }; | |
36 | ||
37 | static const uint32_t drvopts[] = { | |
38 | SR_CONF_ENERGYMETER, | |
39 | }; | |
40 | ||
41 | static const uint32_t devopts[] = { | |
42 | SR_CONF_CONTINUOUS, | |
43 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
44 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
45 | }; | |
46 | ||
47 | static GSList *rdtech_tc_scan(struct sr_dev_driver *di, const char *conn, | |
48 | const char *serialcomm) | |
49 | { | |
50 | struct sr_serial_dev_inst *serial; | |
51 | GSList *devices = NULL; | |
52 | struct dev_context *devc = NULL; | |
53 | struct sr_dev_inst *sdi = NULL; | |
54 | ||
55 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
56 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
57 | goto err_out; | |
58 | ||
59 | devc = g_malloc0(sizeof(struct dev_context)); | |
60 | sr_sw_limits_init(&devc->limits); | |
61 | ||
62 | if (rdtech_tc_probe(serial, devc) != SR_OK) { | |
63 | sr_err("Failed to find a supported RDTech TC device."); | |
64 | goto err_out_serial; | |
65 | } | |
66 | ||
67 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
68 | sdi->status = SR_ST_INACTIVE; | |
69 | sdi->vendor = g_strdup("RDTech"); | |
70 | sdi->model = g_strdup(devc->dev_info.model_name); | |
71 | sdi->version = g_strdup(devc->dev_info.fw_ver); | |
72 | sdi->serial_num = g_strdup_printf("%08" PRIu32, devc->dev_info.serial_num); | |
73 | sdi->inst_type = SR_INST_SERIAL; | |
74 | sdi->conn = serial; | |
75 | sdi->priv = devc; | |
76 | ||
77 | for (int i = 0; devc->channels[i].name; i++) | |
78 | sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, devc->channels[i].name); | |
79 | ||
80 | devices = g_slist_append(devices, sdi); | |
81 | serial_close(serial); | |
82 | if (!devices) | |
83 | sr_serial_dev_inst_free(serial); | |
84 | ||
85 | return std_scan_complete(di, devices); | |
86 | ||
87 | err_out_serial: | |
88 | g_free(devc); | |
89 | serial_close(serial); | |
90 | err_out: | |
91 | sr_serial_dev_inst_free(serial); | |
92 | ||
93 | return NULL; | |
94 | } | |
95 | ||
96 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
97 | { | |
98 | struct sr_config *src; | |
99 | const char *conn = NULL; | |
100 | const char *serialcomm = RDTECH_TC_SERIALCOMM; | |
101 | ||
102 | for (GSList *l = options; l; l = l->next) { | |
103 | src = l->data; | |
104 | switch (src->key) { | |
105 | case SR_CONF_CONN: | |
106 | conn = g_variant_get_string(src->data, NULL); | |
107 | break; | |
108 | case SR_CONF_SERIALCOMM: | |
109 | serialcomm = g_variant_get_string(src->data, NULL); | |
110 | break; | |
111 | } | |
112 | } | |
113 | if (!conn) | |
114 | return NULL; | |
115 | ||
116 | return rdtech_tc_scan(di, conn, serialcomm); | |
117 | } | |
118 | ||
119 | static int config_set(uint32_t key, GVariant *data, | |
120 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
121 | { | |
122 | struct dev_context *devc; | |
123 | ||
124 | (void)cg; | |
125 | ||
126 | devc = sdi->priv; | |
127 | ||
128 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
129 | } | |
130 | ||
131 | static int config_list(uint32_t key, GVariant **data, | |
132 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
133 | { | |
134 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
135 | } | |
136 | ||
137 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
138 | { | |
139 | struct dev_context *devc = sdi->priv; | |
140 | struct sr_serial_dev_inst *serial = sdi->conn; | |
141 | ||
142 | sr_sw_limits_acquisition_start(&devc->limits); | |
143 | std_session_send_df_header(sdi); | |
144 | ||
145 | serial_source_add(sdi->session, serial, G_IO_IN, 50, | |
146 | rdtech_tc_receive_data, (void *)sdi); | |
147 | ||
148 | return rdtech_tc_poll(sdi); | |
149 | } | |
150 | ||
151 | static struct sr_dev_driver rdtech_tc_driver_info = { | |
152 | .name = "rdtech-tc", | |
153 | .longname = "RDTech TC66C USB power meter", | |
154 | .api_version = 1, | |
155 | .init = std_init, | |
156 | .cleanup = std_cleanup, | |
157 | .scan = scan, | |
158 | .dev_list = std_dev_list, | |
159 | .dev_clear = std_dev_clear, | |
160 | .config_get = NULL, | |
161 | .config_set = config_set, | |
162 | .config_list = config_list, | |
163 | .dev_open = std_serial_dev_open, | |
164 | .dev_close = std_serial_dev_close, | |
165 | .dev_acquisition_start = dev_acquisition_start, | |
166 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
167 | .context = NULL, | |
168 | }; | |
169 | SR_REGISTER_DEV_DRIVER(rdtech_tc_driver_info); |