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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/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
40 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
41 {
42         return std_init(sr_ctx, di, LOG_PREFIX);
43 }
44
45 static GSList *scan(struct sr_dev_driver *di, GSList *options)
46 {
47         struct drv_context *drvc;
48         struct dev_context *devc;
49         struct sr_serial_dev_inst *serial;
50         struct sr_dev_inst *sdi;
51         GSList *devices = NULL, *l;
52         const char *conn = NULL, *serialcomm = NULL;
53         uint8_t buf[292];
54         size_t len;
55         struct sr_config *src;
56
57         len = sizeof(buf);
58
59         for (l = options; l; l = l->next) {
60                 src = l->data;
61                 switch (src->key) {
62                 case SR_CONF_CONN:
63                         conn = g_variant_get_string(src->data, NULL);
64                         break;
65                 case SR_CONF_SERIALCOMM:
66                         serialcomm = g_variant_get_string(src->data, NULL);
67                         break;
68                 }
69         }
70         if (!conn)
71                 return NULL;
72         if (!serialcomm)
73                 serialcomm = "1200/7e1";
74
75         serial = sr_serial_dev_inst_new(conn, serialcomm);
76
77         if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
78                 return NULL;
79
80         sr_info("Probing serial port %s.", conn);
81
82         drvc = di->context;
83         drvc->instances = NULL;
84         serial_flush(serial);
85
86         /* Let's get a bit of data and see if we can find a packet. */
87         if (serial_stream_detect(serial, buf, &len, len,
88                                  teleinfo_packet_valid, 3000, 1200) != SR_OK)
89                 goto scan_cleanup;
90
91         sr_info("Found device on port %s.", conn);
92
93         sdi = g_malloc0(sizeof(struct sr_dev_inst));
94         sdi->status = SR_ST_INACTIVE;
95         sdi->vendor = g_strdup("EDF");
96         sdi->model = g_strdup("Teleinfo");
97         devc = g_malloc0(sizeof(struct dev_context));
98         devc->optarif = teleinfo_get_optarif(buf);
99         sdi->inst_type = SR_INST_SERIAL;
100         sdi->conn = serial;
101         sdi->priv = devc;
102         sdi->driver = di;
103
104         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P");
105
106         if (devc->optarif == OPTARIF_BASE) {
107                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "BASE");
108         } else if (devc->optarif == OPTARIF_HC) {
109                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HP");
110                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HC");
111         } else if (devc->optarif == OPTARIF_EJP) {
112                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HN");
113                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPM");
114         } else if (devc->optarif == OPTARIF_BBR) {
115                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJB");
116                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJW");
117                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HPJR");
118                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJB");
119                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJW");
120                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "HCJR");
121         }
122
123         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "IINST");
124         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "PAPP");
125
126         drvc->instances = g_slist_append(drvc->instances, sdi);
127         devices = g_slist_append(devices, sdi);
128
129 scan_cleanup:
130         serial_close(serial);
131
132         return devices;
133 }
134
135 static GSList *dev_list(const struct sr_dev_driver *di)
136 {
137         return ((struct drv_context *)(di->context))->instances;
138 }
139
140 static int cleanup(const struct sr_dev_driver *di)
141 {
142         return std_dev_clear(di, NULL);
143 }
144
145 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
146                 const struct sr_channel_group *cg)
147 {
148         struct dev_context *devc;
149
150         (void)cg;
151
152         if (sdi->status != SR_ST_ACTIVE)
153                 return SR_ERR_DEV_CLOSED;
154
155         if (!(devc = sdi->priv)) {
156                 sr_err("sdi->priv was NULL.");
157                 return SR_ERR_BUG;
158         }
159
160         switch (key) {
161         case SR_CONF_LIMIT_SAMPLES:
162                 devc->limit_samples = g_variant_get_uint64(data);
163                 break;
164         case SR_CONF_LIMIT_MSEC:
165                 devc->limit_msec = g_variant_get_uint64(data);
166                 break;
167         default:
168                 return SR_ERR_NA;
169         }
170
171         return SR_OK;
172 }
173
174 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
175                 const struct sr_channel_group *cg)
176 {
177         (void)sdi;
178         (void)cg;
179
180         switch (key) {
181         case SR_CONF_SCAN_OPTIONS:
182                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
183                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
184                 break;
185         case SR_CONF_DEVICE_OPTIONS:
186                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
187                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
188                 break;
189         default:
190                 return SR_ERR_NA;
191         }
192
193         return SR_OK;
194 }
195
196 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
197 {
198         struct sr_serial_dev_inst *serial = sdi->conn;
199         struct dev_context *devc;
200
201         if (sdi->status != SR_ST_ACTIVE)
202                 return SR_ERR_DEV_CLOSED;
203
204         if (!(devc = sdi->priv)) {
205                 sr_err("sdi->priv was NULL.");
206                 return SR_ERR_BUG;
207         }
208
209         devc->session_cb_data = cb_data;
210
211         /*
212          * Reset the number of samples to take. If we've already collected our
213          * quota, but we start a new session, and don't reset this, we'll just
214          * quit without acquiring any new samples.
215          */
216         devc->num_samples = 0;
217         devc->start_time = g_get_monotonic_time();
218
219         /* Send header packet to the session bus. */
220         std_session_send_df_header(cb_data, LOG_PREFIX);
221
222         /* Poll every 50ms, or whenever some data comes in. */
223         serial_source_add(sdi->session, serial, G_IO_IN, 50,
224                         teleinfo_receive_data, (void *)sdi);
225
226         return SR_OK;
227 }
228
229 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
230 {
231         return std_serial_dev_acquisition_stop(sdi, cb_data,
232                         std_serial_dev_close, sdi->conn, LOG_PREFIX);
233 }
234
235 SR_PRIV struct sr_dev_driver teleinfo_driver_info = {
236         .name = "teleinfo",
237         .longname = "Teleinfo",
238         .api_version = 1,
239         .init = init,
240         .cleanup = cleanup,
241         .scan = scan,
242         .dev_list = dev_list,
243         .dev_clear = NULL,
244         .config_get = NULL,
245         .config_set = config_set,
246         .config_list = config_list,
247         .dev_open = std_serial_dev_open,
248         .dev_close = std_serial_dev_close,
249         .dev_acquisition_start = dev_acquisition_start,
250         .dev_acquisition_stop = dev_acquisition_stop,
251         .context = NULL,
252 };