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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 <stdlib.h>
21 #include <glib.h>
22 #include "libsigrok.h"
23 #include "libsigrok-internal.h"
24 #include "protocol.h"
25
26 static const uint32_t scanopts[] = {
27         SR_CONF_CONN,
28         SR_CONF_SERIALCOMM,
29 };
30
31 static const uint32_t devopts[] = {
32         SR_CONF_ENERGYMETER,
33         SR_CONF_CONTINUOUS,
34         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
35         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
36 };
37
38 SR_PRIV struct sr_dev_driver teleinfo_driver_info;
39 static struct sr_dev_driver *di = &teleinfo_driver_info;
40
41 static int init(struct sr_context *sr_ctx)
42 {
43         return std_init(sr_ctx, di, LOG_PREFIX);
44 }
45
46 static GSList *scan(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->priv;
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
130 scan_cleanup:
131         serial_close(serial);
132
133         return devices;
134 }
135
136 static GSList *dev_list(void)
137 {
138         return ((struct drv_context *)(di->priv))->instances;
139 }
140
141 static int cleanup(void)
142 {
143         return std_dev_clear(di, NULL);
144 }
145
146 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
147                 const struct sr_channel_group *cg)
148 {
149         struct dev_context *devc;
150
151         (void)cg;
152
153         if (sdi->status != SR_ST_ACTIVE)
154                 return SR_ERR_DEV_CLOSED;
155
156         if (!(devc = sdi->priv)) {
157                 sr_err("sdi->priv was NULL.");
158                 return SR_ERR_BUG;
159         }
160
161         switch (key) {
162         case SR_CONF_LIMIT_SAMPLES:
163                 devc->limit_samples = g_variant_get_uint64(data);
164                 sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples);
165                 break;
166         case SR_CONF_LIMIT_MSEC:
167                 devc->limit_msec = g_variant_get_uint64(data);
168                 sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec);
169                 break;
170         default:
171                 return SR_ERR_NA;
172         }
173
174         return SR_OK;
175 }
176
177 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
178                 const struct sr_channel_group *cg)
179 {
180         (void)sdi;
181         (void)cg;
182
183         switch (key) {
184         case SR_CONF_SCAN_OPTIONS:
185                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
186                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
187                 break;
188         case SR_CONF_DEVICE_OPTIONS:
189                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
190                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
191                 break;
192         default:
193                 return SR_ERR_NA;
194         }
195
196         return SR_OK;
197 }
198
199 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
200 {
201         struct sr_serial_dev_inst *serial = sdi->conn;
202         struct dev_context *devc;
203
204         if (sdi->status != SR_ST_ACTIVE)
205                 return SR_ERR_DEV_CLOSED;
206
207         if (!(devc = sdi->priv)) {
208                 sr_err("sdi->priv was NULL.");
209                 return SR_ERR_BUG;
210         }
211
212         devc->session_cb_data = cb_data;
213
214         /*
215          * Reset the number of samples to take. If we've already collected our
216          * quota, but we start a new session, and don't reset this, we'll just
217          * quit without acquiring any new samples.
218          */
219         devc->num_samples = 0;
220         devc->start_time = g_get_monotonic_time();
221
222         /* Send header packet to the session bus. */
223         std_session_send_df_header(cb_data, LOG_PREFIX);
224
225         /* Poll every 50ms, or whenever some data comes in. */
226         serial_source_add(sdi->session, serial, G_IO_IN, 50,
227                         teleinfo_receive_data, (void *)sdi);
228
229         return SR_OK;
230 }
231
232 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
233 {
234         return std_serial_dev_acquisition_stop(sdi, cb_data,
235                         std_serial_dev_close, sdi->conn, LOG_PREFIX);
236 }
237
238 SR_PRIV struct sr_dev_driver teleinfo_driver_info = {
239         .name = "teleinfo",
240         .longname = "Teleinfo",
241         .api_version = 1,
242         .init = init,
243         .cleanup = cleanup,
244         .scan = scan,
245         .dev_list = dev_list,
246         .dev_clear = NULL,
247         .config_get = NULL,
248         .config_set = config_set,
249         .config_list = config_list,
250         .dev_open = std_serial_dev_open,
251         .dev_close = std_serial_dev_close,
252         .dev_acquisition_start = dev_acquisition_start,
253         .dev_acquisition_stop = dev_acquisition_stop,
254         .priv = NULL,
255 };