]>
Commit | Line | Data |
---|---|---|
8e796cb4 AJ |
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 | ||
5542bee6 AJ |
20 | #include <stdlib.h> |
21 | #include <string.h> | |
22 | #include <glib.h> | |
8e796cb4 AJ |
23 | #include "protocol.h" |
24 | ||
5542bee6 AJ |
25 | #define STX 0x02 |
26 | #define ETX 0x03 | |
27 | #define EOT 0x04 | |
28 | #define LF 0x0A | |
29 | #define CR 0x0D | |
30 | ||
31 | static gboolean teleinfo_control_check(char *label, char *data, char control) | |
32 | { | |
33 | int sum = 0; | |
34 | while (*label) | |
35 | sum += *label++; | |
36 | sum += ' '; | |
37 | while (*data) | |
38 | sum += *data++; | |
39 | return ((sum & 0x3F) + ' ') == control; | |
40 | } | |
41 | ||
ba7dd8bb | 42 | static gint teleinfo_channel_compare(gconstpointer a, gconstpointer b) |
5542bee6 | 43 | { |
ba7dd8bb | 44 | const struct sr_channel *ch = a; |
5542bee6 | 45 | const char *name = b; |
ba7dd8bb | 46 | return strcmp(ch->name, name); |
5542bee6 AJ |
47 | } |
48 | ||
ba7dd8bb | 49 | static struct sr_channel *teleinfo_find_channel(struct sr_dev_inst *sdi, |
5542bee6 AJ |
50 | const char *name) |
51 | { | |
ba7dd8bb UH |
52 | GSList *elem = g_slist_find_custom(sdi->channels, name, |
53 | teleinfo_channel_compare); | |
5542bee6 AJ |
54 | return elem ? elem->data : NULL; |
55 | } | |
56 | ||
ba7dd8bb | 57 | static void teleinfo_send_value(struct sr_dev_inst *sdi, const char *channel_name, |
5542bee6 AJ |
58 | float value, int mq, int unit) |
59 | { | |
162a48bf | 60 | struct dev_context *devc; |
5542bee6 | 61 | struct sr_datafeed_packet packet; |
162a48bf | 62 | struct sr_datafeed_analog analog; |
ba7dd8bb | 63 | struct sr_channel *ch; |
162a48bf UH |
64 | |
65 | devc = sdi->priv; | |
ba7dd8bb | 66 | ch = teleinfo_find_channel(sdi, channel_name); |
5542bee6 | 67 | |
ba7dd8bb | 68 | if (!ch || !ch->enabled) |
5542bee6 AJ |
69 | return; |
70 | ||
162a48bf | 71 | memset(&analog, 0, sizeof(struct sr_datafeed_analog)); |
ba7dd8bb | 72 | analog.channels = g_slist_append(analog.channels, ch); |
5542bee6 AJ |
73 | analog.num_samples = 1; |
74 | analog.mq = mq; | |
75 | analog.unit = unit; | |
76 | analog.data = &value; | |
77 | ||
78 | packet.type = SR_DF_ANALOG; | |
79 | packet.payload = &analog; | |
80 | sr_session_send(devc->session_cb_data, &packet); | |
ba7dd8bb | 81 | g_slist_free(analog.channels); |
5542bee6 AJ |
82 | } |
83 | ||
84 | static void teleinfo_handle_mesurement(struct sr_dev_inst *sdi, | |
85 | const char *label, const char *data, | |
86 | char *optarif) | |
87 | { | |
88 | struct dev_context *devc; | |
89 | int v = atoi(data); | |
90 | ||
91 | if (!sdi || !(devc = sdi->priv)) { | |
92 | if (optarif && !strcmp(label, "OPTARIF")) | |
93 | strcpy(optarif, data); | |
94 | return; | |
95 | } | |
96 | ||
97 | if (!strcmp(label, "ADCO")) { | |
98 | devc->num_samples++; | |
99 | } else if (!strcmp(label, "BASE")) { | |
100 | teleinfo_send_value(sdi, "BASE", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
101 | } else if (!strcmp(label, "HCHP")) { | |
102 | teleinfo_send_value(sdi, "HP" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
103 | } else if (!strcmp(label, "HCHC")) { | |
104 | teleinfo_send_value(sdi, "HC" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
105 | } else if (!strcmp(label, "EJPHN")) { | |
106 | teleinfo_send_value(sdi, "HN" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
107 | } else if (!strcmp(label, "EJPHPM")) { | |
108 | teleinfo_send_value(sdi, "HPM" , v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
109 | } else if (!strcmp(label, "BBRHPJB")) { | |
110 | teleinfo_send_value(sdi, "HPJB", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
111 | } else if (!strcmp(label, "BBRHPJW")) { | |
112 | teleinfo_send_value(sdi, "HPJW", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
113 | } else if (!strcmp(label, "BBRHPJR")) { | |
114 | teleinfo_send_value(sdi, "HPJR", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
115 | } else if (!strcmp(label, "BBRHCJB")) { | |
116 | teleinfo_send_value(sdi, "HCJB", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
117 | } else if (!strcmp(label, "BBRHCJW")) { | |
118 | teleinfo_send_value(sdi, "HCJW", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
119 | } else if (!strcmp(label, "BBRHCJR")) { | |
120 | teleinfo_send_value(sdi, "HCJR", v, SR_MQ_POWER, SR_UNIT_WATT_HOUR); | |
121 | } else if (!strcmp(label, "IINST")) { | |
122 | teleinfo_send_value(sdi, "IINST", v, SR_MQ_CURRENT, SR_UNIT_AMPERE); | |
123 | } else if (!strcmp(label, "PAPP")) { | |
124 | teleinfo_send_value(sdi, "PAPP", v, SR_MQ_POWER, SR_UNIT_VOLT_AMPERE); | |
125 | } | |
126 | } | |
127 | ||
128 | static gboolean teleinfo_parse_group(struct sr_dev_inst *sdi, | |
129 | const uint8_t *group, char *optarif) | |
130 | { | |
131 | char label[9], data[13], control, cr; | |
dafafb0e | 132 | const char *str = (const char *)group; |
5542bee6 AJ |
133 | if (sscanf(str, "\x0A%8s %13s %c%c", label, data, &control, &cr) != 4 |
134 | || cr != CR) | |
135 | return FALSE; | |
136 | if (!teleinfo_control_check(label, data, control)) | |
137 | return FALSE; | |
138 | teleinfo_handle_mesurement(sdi, label, data, optarif); | |
139 | return TRUE; | |
140 | } | |
141 | ||
142 | static const uint8_t *teleinfo_parse_data(struct sr_dev_inst *sdi, | |
143 | const uint8_t *buf, int len, | |
144 | char *optarif) | |
145 | { | |
dafafb0e UH |
146 | const uint8_t *group_start, *group_end; |
147 | ||
148 | group_start = memchr(buf, LF, len); | |
5542bee6 AJ |
149 | if (!group_start) |
150 | return NULL; | |
151 | ||
dafafb0e | 152 | group_end = memchr(group_start, CR, len - (group_start - buf)); |
5542bee6 AJ |
153 | if (!group_end) |
154 | return NULL; | |
155 | ||
156 | teleinfo_parse_group(sdi, group_start, optarif); | |
157 | return group_end + 1; | |
158 | } | |
159 | ||
160 | SR_PRIV int teleinfo_get_optarif(const uint8_t *buf) | |
161 | { | |
162 | const uint8_t *ptr = buf; | |
163 | char optarif[5] = { 0 }; | |
164 | ||
165 | while ((ptr = teleinfo_parse_data(NULL, ptr, 292-(ptr-buf), optarif))); | |
166 | if (!strcmp(optarif, "BASE")) | |
167 | return OPTARIF_BASE; | |
168 | else if (!strcmp(optarif, "HC..")) | |
169 | return OPTARIF_HC; | |
170 | else if (!strcmp(optarif, "EJP.")) | |
171 | return OPTARIF_EJP; | |
172 | else if (!strncmp(optarif, "BBR", 3)) | |
173 | return OPTARIF_BBR; | |
174 | return OPTARIF_NONE; | |
175 | } | |
176 | ||
177 | SR_PRIV gboolean teleinfo_packet_valid(const uint8_t *buf) | |
178 | { | |
179 | return !!teleinfo_get_optarif(buf); | |
180 | } | |
181 | ||
8e796cb4 AJ |
182 | SR_PRIV int teleinfo_receive_data(int fd, int revents, void *cb_data) |
183 | { | |
5542bee6 | 184 | struct sr_dev_inst *sdi; |
8e796cb4 | 185 | struct dev_context *devc; |
5542bee6 AJ |
186 | struct sr_serial_dev_inst *serial; |
187 | const uint8_t *ptr, *next_ptr, *end_ptr; | |
188 | int len; | |
dafafb0e | 189 | int64_t time; |
8e796cb4 AJ |
190 | |
191 | (void)fd; | |
192 | ||
5542bee6 | 193 | if (!(sdi = cb_data) || !(devc = sdi->priv) || revents != G_IO_IN) |
8e796cb4 | 194 | return TRUE; |
5542bee6 | 195 | serial = sdi->conn; |
8e796cb4 | 196 | |
5542bee6 AJ |
197 | /* Try to get as much data as the buffer can hold. */ |
198 | len = TELEINFO_BUF_SIZE - devc->buf_len; | |
9333691a | 199 | len = serial_read_nonblocking(serial, devc->buf + devc->buf_len, len); |
5542bee6 AJ |
200 | if (len < 1) { |
201 | sr_err("Serial port read error: %d.", len); | |
202 | return FALSE; | |
203 | } | |
204 | devc->buf_len += len; | |
8e796cb4 | 205 | |
5542bee6 AJ |
206 | /* Now look for packets in that data. */ |
207 | ptr = devc->buf; | |
208 | end_ptr = ptr + devc->buf_len; | |
209 | while ((next_ptr = teleinfo_parse_data(sdi, ptr, end_ptr - ptr, NULL))) | |
210 | ptr = next_ptr; | |
211 | ||
212 | /* If we have any data left, move it to the beginning of our buffer. */ | |
213 | memmove(devc->buf, ptr, end_ptr - ptr); | |
214 | devc->buf_len -= ptr - devc->buf; | |
215 | ||
216 | /* If buffer is full and no valid packet was found, wipe buffer. */ | |
217 | if (devc->buf_len >= TELEINFO_BUF_SIZE) { | |
218 | devc->buf_len = 0; | |
219 | return FALSE; | |
220 | } | |
221 | ||
222 | if (devc->limit_samples && devc->num_samples >= devc->limit_samples) { | |
223 | sr_info("Requested number of samples reached."); | |
224 | sdi->driver->dev_acquisition_stop(sdi, devc->session_cb_data); | |
225 | return TRUE; | |
8e796cb4 AJ |
226 | } |
227 | ||
5542bee6 | 228 | if (devc->limit_msec) { |
dafafb0e | 229 | time = (g_get_monotonic_time() - devc->start_time) / 1000; |
5542bee6 AJ |
230 | if (time > (int64_t)devc->limit_msec) { |
231 | sr_info("Requested time limit reached."); | |
232 | sdi->driver->dev_acquisition_stop(sdi, devc->session_cb_data); | |
233 | return TRUE; | |
234 | } | |
235 | } | |
8e796cb4 AJ |
236 | return TRUE; |
237 | } |