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serial-dmm: Use software limit helpers
[libsigrok.git] / src / hardware / teleinfo / api.c
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 Aurelien Jacobs <aurel@gnuage.org>
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 <stdlib.h>
22#include <glib.h>
23#include <libsigrok/libsigrok.h>
24#include "libsigrok-internal.h"
25#include "protocol.h"
26
27static const uint32_t scanopts[] = {
28 SR_CONF_CONN,
29 SR_CONF_SERIALCOMM,
30};
31
32static const uint32_t devopts[] = {
33 SR_CONF_ENERGYMETER,
34 SR_CONF_CONTINUOUS,
35 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
36 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
37};
38
39SR_PRIV struct sr_dev_driver teleinfo_driver_info;
40
41static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
42{
43 return std_init(sr_ctx, di, LOG_PREFIX);
44}
45
46static GSList *scan(struct sr_dev_driver *di, GSList *options)
47{
48 struct drv_context *drvc;
49 struct dev_context *devc;
50 struct sr_serial_dev_inst *serial;
51 struct sr_dev_inst *sdi;
52 GSList *devices = NULL, *l;
53 const char *conn = NULL, *serialcomm = NULL;
54 uint8_t buf[292];
55 size_t len;
56 struct sr_config *src;
57
58 len = sizeof(buf);
59
60 for (l = options; l; l = l->next) {
61 src = l->data;
62 switch (src->key) {
63 case SR_CONF_CONN:
64 conn = g_variant_get_string(src->data, NULL);
65 break;
66 case SR_CONF_SERIALCOMM:
67 serialcomm = g_variant_get_string(src->data, NULL);
68 break;
69 }
70 }
71 if (!conn)
72 return NULL;
73 if (!serialcomm)
74 serialcomm = "1200/7e1";
75
76 serial = sr_serial_dev_inst_new(conn, serialcomm);
77
78 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
79 return NULL;
80
81 sr_info("Probing serial port %s.", conn);
82
83 drvc = di->context;
84 drvc->instances = NULL;
85 serial_flush(serial);
86
87 /* Let's get a bit of data and see if we can find a packet. */
88 if (serial_stream_detect(serial, buf, &len, len,
89 teleinfo_packet_valid, 3000, 1200) != SR_OK)
90 goto scan_cleanup;
91
92 sr_info("Found device on port %s.", conn);
93
94 sdi = g_malloc0(sizeof(struct sr_dev_inst));
95 sdi->status = SR_ST_INACTIVE;
96 sdi->vendor = g_strdup("EDF");
97 sdi->model = g_strdup("Teleinfo");
98 devc = g_malloc0(sizeof(struct dev_context));
99 devc->optarif = teleinfo_get_optarif(buf);
100 sdi->inst_type = SR_INST_SERIAL;
101 sdi->conn = serial;
102 sdi->priv = devc;
103 sdi->driver = di;
104
105 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P");
106
107 if (devc->optarif == OPTARIF_BASE) {
108 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "BASE");
109 } else if (devc->optarif == OPTARIF_HC) {
110 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HP");
111 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HC");
112 } else if (devc->optarif == OPTARIF_EJP) {
113 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HN");
114 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPM");
115 } else if (devc->optarif == OPTARIF_BBR) {
116 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJB");
117 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJW");
118 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJR");
119 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJB");
120 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJW");
121 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJR");
122 }
123
124 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "IINST");
125 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "PAPP");
126
127 drvc->instances = g_slist_append(drvc->instances, sdi);
128 devices = g_slist_append(devices, sdi);
129
130scan_cleanup:
131 serial_close(serial);
132
133 return devices;
134}
135
136static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
137 const struct sr_channel_group *cg)
138{
139 struct dev_context *devc;
140
141 (void)cg;
142
143 if (sdi->status != SR_ST_ACTIVE)
144 return SR_ERR_DEV_CLOSED;
145
146 if (!(devc = sdi->priv)) {
147 sr_err("sdi->priv was NULL.");
148 return SR_ERR_BUG;
149 }
150
151 switch (key) {
152 case SR_CONF_LIMIT_SAMPLES:
153 devc->limit_samples = g_variant_get_uint64(data);
154 break;
155 case SR_CONF_LIMIT_MSEC:
156 devc->limit_msec = g_variant_get_uint64(data);
157 break;
158 default:
159 return SR_ERR_NA;
160 }
161
162 return SR_OK;
163}
164
165static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
166 const struct sr_channel_group *cg)
167{
168 (void)sdi;
169 (void)cg;
170
171 switch (key) {
172 case SR_CONF_SCAN_OPTIONS:
173 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
174 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
175 break;
176 case SR_CONF_DEVICE_OPTIONS:
177 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
178 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
179 break;
180 default:
181 return SR_ERR_NA;
182 }
183
184 return SR_OK;
185}
186
187static int dev_acquisition_start(const struct sr_dev_inst *sdi)
188{
189 struct sr_serial_dev_inst *serial = sdi->conn;
190 struct dev_context *devc;
191
192 if (sdi->status != SR_ST_ACTIVE)
193 return SR_ERR_DEV_CLOSED;
194
195 devc = sdi->priv;
196
197 /*
198 * Reset the number of samples to take. If we've already collected our
199 * quota, but we start a new session, and don't reset this, we'll just
200 * quit without acquiring any new samples.
201 */
202 devc->num_samples = 0;
203 devc->start_time = g_get_monotonic_time();
204
205 std_session_send_df_header(sdi, LOG_PREFIX);
206
207 /* Poll every 50ms, or whenever some data comes in. */
208 serial_source_add(sdi->session, serial, G_IO_IN, 50,
209 teleinfo_receive_data, (void *)sdi);
210
211 return SR_OK;
212}
213
214static int dev_acquisition_stop(struct sr_dev_inst *sdi)
215{
216 return std_serial_dev_acquisition_stop(sdi,
217 std_serial_dev_close, sdi->conn, LOG_PREFIX);
218}
219
220SR_PRIV struct sr_dev_driver teleinfo_driver_info = {
221 .name = "teleinfo",
222 .longname = "Teleinfo",
223 .api_version = 1,
224 .init = init,
225 .cleanup = std_cleanup,
226 .scan = scan,
227 .dev_list = std_dev_list,
228 .dev_clear = NULL,
229 .config_get = NULL,
230 .config_set = config_set,
231 .config_list = config_list,
232 .dev_open = std_serial_dev_open,
233 .dev_close = std_serial_dev_close,
234 .dev_acquisition_start = dev_acquisition_start,
235 .dev_acquisition_stop = dev_acquisition_stop,
236 .context = NULL,
237};