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8fa9368e BV |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
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 | ||
6ec6c43b | 20 | #include <config.h> |
e37c4b39 | 21 | #include <string.h> |
8fa9368e BV |
22 | #include "protocol.h" |
23 | ||
e37c4b39 | 24 | /* Length of expected payload for each token. */ |
329733d9 | 25 | static const int token_payloads[][2] = { |
e37c4b39 BV |
26 | { TOKEN_WEIGHT_TIME_FAST, 0 }, |
27 | { TOKEN_WEIGHT_TIME_SLOW, 0 }, | |
28 | { TOKEN_HOLD_MAX, 0 }, | |
29 | { TOKEN_HOLD_MIN, 0 }, | |
30 | { TOKEN_TIME, 3 }, | |
31 | { TOKEN_MEAS_RANGE_OVER, 0 }, | |
32 | { TOKEN_MEAS_RANGE_UNDER, 0 }, | |
33 | { TOKEN_STORE_FULL, 0 }, | |
34 | { TOKEN_RECORDING_ON, 0 }, | |
35 | { TOKEN_MEAS_WAS_READOUT, 1 }, | |
36 | { TOKEN_MEAS_WAS_BARGRAPH, 0 }, | |
37 | { TOKEN_MEASUREMENT, 2 }, | |
38 | { TOKEN_HOLD_NONE, 0 }, | |
39 | { TOKEN_BATTERY_LOW, 0 }, | |
40 | { TOKEN_MEAS_RANGE_OK, 0 }, | |
41 | { TOKEN_STORE_OK, 0 }, | |
42 | { TOKEN_RECORDING_OFF, 0 }, | |
43 | { TOKEN_WEIGHT_FREQ_A, 1 }, | |
44 | { TOKEN_WEIGHT_FREQ_C, 1 }, | |
45 | { TOKEN_BATTERY_OK, 0 }, | |
46 | { TOKEN_MEAS_RANGE_30_80, 0 }, | |
47 | { TOKEN_MEAS_RANGE_30_130, 0 }, | |
48 | { TOKEN_MEAS_RANGE_50_100, 0 }, | |
49 | { TOKEN_MEAS_RANGE_80_130, 0 }, | |
50 | }; | |
51 | ||
52 | static int find_token_payload_len(unsigned char c) | |
8fa9368e | 53 | { |
e37c4b39 | 54 | unsigned int i; |
8fa9368e | 55 | |
e37c4b39 BV |
56 | for (i = 0; i < ARRAY_SIZE(token_payloads); i++) { |
57 | if (token_payloads[i][0] == c) | |
58 | return token_payloads[i][1]; | |
59 | } | |
60 | ||
61 | return -1; | |
62 | } | |
63 | ||
64 | /* Process measurement or setting (0xa5 command). */ | |
65 | static void process_mset(const struct sr_dev_inst *sdi) | |
66 | { | |
8fa9368e | 67 | struct dev_context *devc; |
e37c4b39 | 68 | struct sr_datafeed_packet packet; |
5faebab2 | 69 | struct sr_datafeed_analog_old analog; |
e37c4b39 BV |
70 | GString *dbg; |
71 | float fvalue; | |
72 | int i; | |
8fa9368e | 73 | |
e37c4b39 BV |
74 | devc = sdi->priv; |
75 | if (sr_log_loglevel_get() >= SR_LOG_SPEW) { | |
76 | dbg = g_string_sized_new(128); | |
77 | g_string_printf(dbg, "got command 0x%.2x token 0x%.2x", | |
78 | devc->cmd, devc->token); | |
79 | if (devc->buf_len) { | |
80 | g_string_append_printf(dbg, " payload"); | |
81 | for (i = 0; i < devc->buf_len; i++) | |
82 | g_string_append_printf(dbg, " %.2x", devc->buf[i]); | |
83 | } | |
84 | sr_spew("%s", dbg->str); | |
85 | g_string_free(dbg, TRUE); | |
86 | } | |
87 | ||
0c5f2abc | 88 | switch (devc->token) { |
e37c4b39 BV |
89 | case TOKEN_WEIGHT_TIME_FAST: |
90 | devc->cur_mqflags |= SR_MQFLAG_SPL_TIME_WEIGHT_F; | |
91 | devc->cur_mqflags &= ~SR_MQFLAG_SPL_TIME_WEIGHT_S; | |
92 | break; | |
93 | case TOKEN_WEIGHT_TIME_SLOW: | |
94 | devc->cur_mqflags |= SR_MQFLAG_SPL_TIME_WEIGHT_S; | |
95 | devc->cur_mqflags &= ~SR_MQFLAG_SPL_TIME_WEIGHT_F; | |
96 | break; | |
97 | case TOKEN_WEIGHT_FREQ_A: | |
98 | devc->cur_mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
99 | devc->cur_mqflags &= ~SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
100 | break; | |
101 | case TOKEN_WEIGHT_FREQ_C: | |
102 | devc->cur_mqflags |= SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
103 | devc->cur_mqflags &= ~SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
104 | break; | |
105 | case TOKEN_HOLD_MAX: | |
106 | devc->cur_mqflags |= SR_MQFLAG_HOLD | SR_MQFLAG_MAX; | |
107 | devc->cur_mqflags &= ~SR_MQFLAG_MIN; | |
108 | break; | |
109 | case TOKEN_HOLD_MIN: | |
110 | devc->cur_mqflags |= SR_MQFLAG_HOLD | SR_MQFLAG_MIN; | |
111 | devc->cur_mqflags &= ~SR_MQFLAG_MAX; | |
112 | break; | |
113 | case TOKEN_HOLD_NONE: | |
114 | devc->cur_mqflags &= ~(SR_MQFLAG_MAX | SR_MQFLAG_MIN | SR_MQFLAG_HOLD); | |
115 | break; | |
116 | case TOKEN_MEASUREMENT: | |
117 | fvalue = ((devc->buf[0] & 0xf0) >> 4) * 100; | |
118 | fvalue += (devc->buf[0] & 0x0f) * 10; | |
119 | fvalue += ((devc->buf[1] & 0xf0) >> 4); | |
120 | fvalue += (devc->buf[1] & 0x0f) / 10.0; | |
bc114328 BV |
121 | devc->last_spl = fvalue; |
122 | break; | |
123 | case TOKEN_MEAS_WAS_READOUT: | |
124 | case TOKEN_MEAS_WAS_BARGRAPH: | |
125 | if (devc->cur_mqflags & (SR_MQFLAG_MAX | SR_MQFLAG_MIN)) { | |
126 | if (devc->token == TOKEN_MEAS_WAS_BARGRAPH) { | |
127 | /* The device still sends bargraph measurements even | |
128 | * when in max/min hold mode. Suppress them here, unless | |
129 | * they're readout values. This duplicates the behavior | |
130 | * of the device display exactly. */ | |
131 | break; | |
132 | } | |
133 | } | |
5faebab2 | 134 | memset(&analog, 0, sizeof(struct sr_datafeed_analog_old)); |
e37c4b39 BV |
135 | analog.mq = SR_MQ_SOUND_PRESSURE_LEVEL; |
136 | analog.mqflags = devc->cur_mqflags; | |
137 | analog.unit = SR_UNIT_DECIBEL_SPL; | |
ba7dd8bb | 138 | analog.channels = sdi->channels; |
e37c4b39 | 139 | analog.num_samples = 1; |
bc114328 | 140 | analog.data = &devc->last_spl; |
5faebab2 | 141 | packet.type = SR_DF_ANALOG_OLD; |
e37c4b39 | 142 | packet.payload = &analog; |
695dc859 | 143 | sr_session_send(sdi, &packet); |
e37c4b39 BV |
144 | |
145 | devc->num_samples++; | |
146 | if (devc->limit_samples && devc->num_samples >= devc->limit_samples) | |
695dc859 | 147 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi); |
e37c4b39 | 148 | break; |
e1af0e85 BV |
149 | case TOKEN_RECORDING_ON: |
150 | devc->recording = TRUE; | |
151 | break; | |
152 | case TOKEN_RECORDING_OFF: | |
153 | devc->recording = FALSE; | |
154 | break; | |
f157b2ee BV |
155 | case TOKEN_MEAS_RANGE_30_80: |
156 | case TOKEN_MEAS_RANGE_30_130: | |
157 | case TOKEN_MEAS_RANGE_50_100: | |
158 | case TOKEN_MEAS_RANGE_80_130: | |
159 | devc->cur_meas_range = devc->token; | |
160 | break; | |
e37c4b39 BV |
161 | case TOKEN_TIME: |
162 | case TOKEN_STORE_OK: | |
163 | case TOKEN_STORE_FULL: | |
e37c4b39 BV |
164 | case TOKEN_BATTERY_OK: |
165 | case TOKEN_BATTERY_LOW: | |
166 | case TOKEN_MEAS_RANGE_OK: | |
167 | case TOKEN_MEAS_RANGE_OVER: | |
168 | case TOKEN_MEAS_RANGE_UNDER: | |
f3f19d11 | 169 | /* Not useful, or not expressible in sigrok. */ |
e37c4b39 BV |
170 | break; |
171 | } | |
172 | ||
173 | } | |
174 | ||
cea26f6e BV |
175 | static void send_data(const struct sr_dev_inst *sdi, unsigned char *data, |
176 | uint64_t num_samples) | |
177 | { | |
178 | struct dev_context *devc; | |
179 | struct sr_datafeed_packet packet; | |
5faebab2 | 180 | struct sr_datafeed_analog_old analog; |
cea26f6e BV |
181 | float fbuf[SAMPLES_PER_PACKET]; |
182 | unsigned int i; | |
183 | ||
184 | devc = sdi->priv; | |
185 | ||
0a1f7b09 | 186 | for (i = 0; i < num_samples; i++) { |
cea26f6e BV |
187 | fbuf[i] = ((data[i * 2] & 0xf0) >> 4) * 100; |
188 | fbuf[i] += (data[i * 2] & 0x0f) * 10; | |
189 | fbuf[i] += ((data[i * 2 + 1] & 0xf0) >> 4); | |
190 | fbuf[i] += (data[i * 2 + 1] & 0x0f) / 10.0; | |
191 | } | |
5faebab2 | 192 | memset(&analog, 0, sizeof(struct sr_datafeed_analog_old)); |
cea26f6e BV |
193 | analog.mq = SR_MQ_SOUND_PRESSURE_LEVEL; |
194 | analog.mqflags = devc->cur_mqflags; | |
195 | analog.unit = SR_UNIT_DECIBEL_SPL; | |
ba7dd8bb | 196 | analog.channels = sdi->channels; |
cea26f6e BV |
197 | analog.num_samples = num_samples; |
198 | analog.data = fbuf; | |
5faebab2 | 199 | packet.type = SR_DF_ANALOG_OLD; |
cea26f6e | 200 | packet.payload = &analog; |
695dc859 | 201 | sr_session_send(sdi, &packet); |
cea26f6e BV |
202 | |
203 | devc->num_samples += analog.num_samples; | |
204 | if (devc->limit_samples && devc->num_samples >= devc->limit_samples) | |
695dc859 | 205 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi); |
cea26f6e BV |
206 | |
207 | return; | |
208 | } | |
209 | ||
e1af0e85 BV |
210 | static void process_byte(const struct sr_dev_inst *sdi, const unsigned char c, |
211 | int handle_packets) | |
e37c4b39 BV |
212 | { |
213 | struct dev_context *devc; | |
cea26f6e BV |
214 | struct sr_datafeed_packet packet; |
215 | struct sr_datafeed_meta meta; | |
216 | struct sr_config *src; | |
14cf708f | 217 | gint64 cur_time; |
e37c4b39 | 218 | int len; |
8fa9368e BV |
219 | |
220 | if (!(devc = sdi->priv)) | |
e37c4b39 BV |
221 | return; |
222 | ||
223 | if (c == 0xff) { | |
224 | /* Device is in hold mode */ | |
225 | devc->cur_mqflags |= SR_MQFLAG_HOLD; | |
226 | ||
14cf708f BV |
227 | if (devc->hold_last_sent == 0) { |
228 | /* First hold notification. */ | |
229 | devc->hold_last_sent = g_get_monotonic_time(); | |
230 | /* When the device leaves hold mode, it starts from scratch. */ | |
231 | devc->state = ST_INIT; | |
232 | } else { | |
233 | cur_time = g_get_monotonic_time(); | |
234 | if (cur_time - devc->hold_last_sent > HOLD_REPEAT_INTERVAL) { | |
235 | /* Force the last measurement out again. */ | |
236 | devc->cmd = 0xa5; | |
237 | devc->token = TOKEN_MEAS_WAS_READOUT; | |
e1af0e85 BV |
238 | if (handle_packets) |
239 | process_mset(sdi); | |
14cf708f BV |
240 | devc->hold_last_sent = cur_time; |
241 | } | |
242 | } | |
e37c4b39 | 243 | |
e37c4b39 BV |
244 | return; |
245 | } | |
246 | devc->cur_mqflags &= ~SR_MQFLAG_HOLD; | |
14cf708f | 247 | devc->hold_last_sent = 0; |
e37c4b39 BV |
248 | |
249 | if (devc->state == ST_INIT) { | |
250 | if (c == 0xa5) { | |
251 | devc->cmd = c; | |
252 | devc->token = 0x00; | |
253 | devc->state = ST_GET_TOKEN; | |
254 | } else if (c == 0xbb) { | |
255 | devc->cmd = c; | |
256 | devc->buf_len = 0; | |
cea26f6e BV |
257 | devc->state = ST_GET_LOG_HEADER; |
258 | sr_dbg("got command 0xbb"); | |
e37c4b39 BV |
259 | } |
260 | } else if (devc->state == ST_GET_TOKEN) { | |
261 | devc->token = c; | |
262 | devc->buf_len = 0; | |
263 | len = find_token_payload_len(devc->token); | |
264 | if (len == -1 || len > 0) { | |
265 | devc->buf_len = 0; | |
266 | devc->state = ST_GET_DATA; | |
267 | } else { | |
e1af0e85 BV |
268 | if (handle_packets) |
269 | process_mset(sdi); | |
e37c4b39 BV |
270 | devc->state = ST_INIT; |
271 | } | |
272 | } else if (devc->state == ST_GET_DATA) { | |
273 | len = find_token_payload_len(devc->token); | |
274 | if (len == -1) { | |
275 | /* We don't know this token. */ | |
276 | sr_dbg("Unknown 0xa5 token 0x%.2x", devc->token); | |
277 | if (c == 0xa5 || c == 0xbb) { | |
278 | /* Looks like a new command however. */ | |
e1af0e85 BV |
279 | if (handle_packets) |
280 | process_mset(sdi); | |
e37c4b39 BV |
281 | devc->state = ST_INIT; |
282 | } else { | |
283 | devc->buf[devc->buf_len++] = c; | |
284 | if (devc->buf_len > BUF_SIZE) { | |
285 | /* Shouldn't happen, ignore. */ | |
286 | devc->state = ST_INIT; | |
287 | } | |
288 | } | |
289 | } else { | |
290 | devc->buf[devc->buf_len++] = c; | |
291 | if (devc->buf_len == len) { | |
e1af0e85 BV |
292 | if (handle_packets) |
293 | process_mset(sdi); | |
e37c4b39 BV |
294 | devc->state = ST_INIT; |
295 | } else if (devc->buf_len > BUF_SIZE) { | |
296 | /* Shouldn't happen, ignore. */ | |
297 | devc->state = ST_INIT; | |
298 | } | |
299 | } | |
cea26f6e BV |
300 | } else if (devc->state == ST_GET_LOG_HEADER) { |
301 | sr_dbg("log header: 0x%.2x", c); | |
302 | if (devc->buf_len < 2) | |
303 | devc->buf[devc->buf_len++] = c; | |
304 | if (devc->buf_len == 2) { | |
305 | sr_dbg("Device says it has %d bytes stored.", | |
306 | ((devc->buf[0] << 8) + devc->buf[1]) - 100); | |
307 | devc->buf_len = 0; | |
308 | devc->state = ST_GET_LOG_RECORD_META; | |
309 | } | |
310 | } else if (devc->state == ST_GET_LOG_RECORD_META) { | |
311 | sr_dbg("log meta: 0x%.2x", c); | |
312 | if (c == RECORD_END) { | |
313 | devc->state = ST_INIT; | |
314 | /* Stop acquisition after transferring all stored | |
315 | * records. Otherwise the frontend would have no | |
316 | * way to tell where stored data ends and live | |
317 | * measurements begin. */ | |
695dc859 | 318 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi); |
cea26f6e BV |
319 | } else if (c == RECORD_DATA) { |
320 | devc->buf_len = 0; | |
321 | devc->state = ST_GET_LOG_RECORD_DATA; | |
322 | } else { | |
323 | /* RECORD_DBA/RECORD_DBC + 7 bytes of metadata */ | |
324 | devc->buf[devc->buf_len++] = c; | |
325 | if (devc->buf_len < 8) | |
326 | /* Keep filling up the record header. */ | |
327 | return; | |
328 | if (devc->buf[0] == RECORD_DBA) | |
329 | devc->cur_mqflags = SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
330 | else if (devc->buf[0] == RECORD_DBC) | |
331 | devc->cur_mqflags = SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
332 | else { | |
333 | /* Shouldn't happen. */ | |
334 | sr_dbg("Unknown record token 0x%.2x", c); | |
335 | return; | |
336 | } | |
337 | packet.type = SR_DF_META; | |
338 | packet.payload = &meta; | |
339 | src = sr_config_new(SR_CONF_SAMPLE_INTERVAL, | |
340 | g_variant_new_uint64(devc->buf[7] * 1000)); | |
341 | meta.config = g_slist_append(NULL, src); | |
695dc859 | 342 | sr_session_send(sdi, &packet); |
cea26f6e BV |
343 | g_free(src); |
344 | devc->buf_len = 0; | |
345 | } | |
346 | } else if (devc->state == ST_GET_LOG_RECORD_DATA) { | |
347 | sr_dbg("log data: 0x%.2x", c); | |
348 | if (c == RECORD_DBA || c == RECORD_DBC || c == RECORD_DATA || c == RECORD_END) { | |
349 | /* Work around off-by-one bug in device firmware. This | |
350 | * happens only on the last record, i.e. before RECORD_END */ | |
351 | if (devc->buf_len & 1) | |
352 | devc->buf_len--; | |
353 | /* Done with this set of samples */ | |
354 | send_data(sdi, devc->buf, devc->buf_len / 2); | |
355 | devc->buf_len = 0; | |
356 | ||
357 | /* Process this meta marker in the right state. */ | |
358 | devc->state = ST_GET_LOG_RECORD_META; | |
359 | process_byte(sdi, c, handle_packets); | |
360 | } else { | |
361 | devc->buf[devc->buf_len++] = c; | |
362 | if (devc->buf_len == SAMPLES_PER_PACKET * 2) { | |
363 | send_data(sdi, devc->buf, devc->buf_len / 2); | |
364 | devc->buf_len = 0; | |
365 | } | |
366 | } | |
e37c4b39 BV |
367 | } |
368 | ||
369 | } | |
370 | ||
371 | SR_PRIV int cem_dt_885x_receive_data(int fd, int revents, void *cb_data) | |
372 | { | |
373 | const struct sr_dev_inst *sdi; | |
cea26f6e | 374 | struct dev_context *devc; |
e37c4b39 | 375 | struct sr_serial_dev_inst *serial; |
cea26f6e | 376 | unsigned char c, cmd; |
e37c4b39 BV |
377 | |
378 | (void)fd; | |
379 | ||
380 | if (!(sdi = cb_data)) | |
8fa9368e BV |
381 | return TRUE; |
382 | ||
cea26f6e | 383 | devc = sdi->priv; |
e37c4b39 | 384 | serial = sdi->conn; |
8fa9368e | 385 | if (revents == G_IO_IN) { |
d7b269da | 386 | if (serial_read_nonblocking(serial, &c, 1) != 1) |
e37c4b39 | 387 | return TRUE; |
e1af0e85 | 388 | process_byte(sdi, c, TRUE); |
cea26f6e BV |
389 | |
390 | if (devc->enable_data_source_memory) { | |
391 | if (devc->state == ST_GET_LOG_HEADER) { | |
392 | /* Memory transfer started. */ | |
393 | devc->enable_data_source_memory = FALSE; | |
394 | } else { | |
395 | /* Tell device to start transferring from memory. */ | |
396 | cmd = CMD_TRANSFER_MEMORY; | |
d7b269da | 397 | serial_write_nonblocking(serial, &cmd, 1); |
cea26f6e BV |
398 | } |
399 | } | |
8fa9368e BV |
400 | } |
401 | ||
402 | return TRUE; | |
403 | } | |
e1af0e85 | 404 | |
a4eb4b29 | 405 | static int wait_for_token(const struct sr_dev_inst *sdi, int8_t *tokens, int timeout) |
e1af0e85 BV |
406 | { |
407 | struct dev_context *devc; | |
408 | struct sr_serial_dev_inst *serial; | |
409 | gint64 start_time; | |
410 | int i; | |
411 | unsigned char c; | |
412 | ||
413 | serial = sdi->conn; | |
414 | devc = sdi->priv; | |
415 | devc->state = ST_INIT; | |
416 | start_time = g_get_monotonic_time() / 1000; | |
417 | while (TRUE) { | |
d7b269da | 418 | if (serial_read_nonblocking(serial, &c, 1) != 1) |
e1af0e85 BV |
419 | /* Device might have gone away. */ |
420 | return SR_ERR; | |
421 | process_byte(sdi, c, FALSE); | |
422 | if (devc->state != ST_INIT) | |
423 | /* Wait for a whole packet to get processed. */ | |
424 | continue; | |
425 | for (i = 0; tokens[i] != -1; i++) { | |
426 | if (devc->token == tokens[i]) { | |
427 | sr_spew("wait_for_token: got token 0x%.2x", devc->token); | |
428 | return SR_OK; | |
429 | } | |
430 | } | |
431 | if (timeout && g_get_monotonic_time() / 1000 - start_time > timeout) | |
432 | return SR_ERR_TIMEOUT; | |
433 | } | |
434 | ||
435 | return SR_OK; | |
436 | } | |
437 | ||
438 | /* cmd is the command to send, tokens are the tokens that denote the state | |
439 | * which the command affects. The first token is the desired state. */ | |
d87c1766 | 440 | static int cem_dt_885x_toggle(const struct sr_dev_inst *sdi, uint8_t cmd, |
a4eb4b29 | 441 | int8_t *tokens, int timeout) |
e1af0e85 BV |
442 | { |
443 | struct dev_context *devc; | |
444 | struct sr_serial_dev_inst *serial; | |
445 | ||
446 | serial = sdi->conn; | |
447 | devc = sdi->priv; | |
448 | ||
449 | /* The device doesn't respond to commands very well. The | |
450 | * only thing to do is wait for the token that will confirm | |
451 | * whether the command worked or not, and resend if needed. */ | |
452 | while (TRUE) { | |
d7b269da | 453 | if (serial_write_nonblocking(serial, (const void *)&cmd, 1) != 1) |
e1af0e85 | 454 | return SR_ERR; |
be733919 | 455 | if (wait_for_token(sdi, tokens, timeout) == SR_ERR) |
e1af0e85 BV |
456 | return SR_ERR; |
457 | if (devc->token == tokens[0]) | |
458 | /* It worked. */ | |
459 | break; | |
460 | } | |
461 | ||
462 | return SR_OK; | |
463 | } | |
464 | ||
0cd9107d BV |
465 | SR_PRIV gboolean cem_dt_885x_recording_get(const struct sr_dev_inst *sdi, |
466 | int *state) | |
e1af0e85 BV |
467 | { |
468 | struct dev_context *devc; | |
a4eb4b29 | 469 | int8_t tokens[5]; |
e1af0e85 BV |
470 | |
471 | devc = sdi->priv; | |
e1af0e85 BV |
472 | if (devc->recording == -1) { |
473 | /* Didn't pick up device state yet. */ | |
474 | tokens[0] = TOKEN_RECORDING_ON; | |
475 | tokens[1] = TOKEN_RECORDING_OFF; | |
476 | tokens[2] = -1; | |
0cd9107d | 477 | if (wait_for_token(sdi, tokens, 510) != SR_OK) |
e1af0e85 BV |
478 | return SR_ERR; |
479 | } | |
0cd9107d | 480 | *state = devc->token == TOKEN_RECORDING_ON; |
e1af0e85 | 481 | |
0cd9107d | 482 | return SR_OK; |
e1af0e85 BV |
483 | } |
484 | ||
0cd9107d BV |
485 | SR_PRIV int cem_dt_885x_recording_set(const struct sr_dev_inst *sdi, |
486 | gboolean state) | |
e1af0e85 BV |
487 | { |
488 | struct dev_context *devc; | |
489 | int ret; | |
a4eb4b29 | 490 | int8_t tokens[5]; |
e1af0e85 BV |
491 | |
492 | devc = sdi->priv; | |
493 | ||
494 | /* The toggle below needs the desired state in first position. */ | |
0cd9107d | 495 | if (state) { |
e1af0e85 BV |
496 | tokens[0] = TOKEN_RECORDING_ON; |
497 | tokens[1] = TOKEN_RECORDING_OFF; | |
498 | } else { | |
499 | tokens[0] = TOKEN_RECORDING_OFF; | |
500 | tokens[1] = TOKEN_RECORDING_ON; | |
501 | } | |
502 | tokens[2] = -1; | |
503 | ||
504 | if (devc->recording == -1) { | |
505 | /* Didn't pick up device state yet. */ | |
506 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
507 | return SR_ERR; | |
508 | if (devc->token == tokens[0]) | |
509 | /* Nothing to do. */ | |
510 | return SR_OK; | |
0cd9107d | 511 | } else if (devc->recording == state) |
e1af0e85 BV |
512 | /* Nothing to do. */ |
513 | return SR_OK; | |
514 | ||
be733919 BV |
515 | /* Recording state notifications are sent at 2Hz, so allow just over |
516 | * that, 510ms, for the state to come in. */ | |
517 | ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_RECORDING, tokens, 510); | |
518 | ||
519 | return ret; | |
520 | } | |
521 | ||
522 | SR_PRIV int cem_dt_885x_weight_freq_get(const struct sr_dev_inst *sdi) | |
523 | { | |
524 | struct dev_context *devc; | |
525 | int cur_setting; | |
a4eb4b29 | 526 | int8_t tokens[5]; |
be733919 BV |
527 | |
528 | devc = sdi->priv; | |
529 | ||
530 | cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C); | |
531 | if (cur_setting == 0) { | |
532 | /* Didn't pick up device state yet. */ | |
533 | tokens[0] = TOKEN_WEIGHT_FREQ_A; | |
534 | tokens[1] = TOKEN_WEIGHT_FREQ_C; | |
535 | tokens[2] = -1; | |
536 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
537 | return SR_ERR; | |
538 | if (devc->token == TOKEN_WEIGHT_FREQ_A) | |
539 | return SR_MQFLAG_SPL_FREQ_WEIGHT_A; | |
540 | else | |
541 | return SR_MQFLAG_SPL_FREQ_WEIGHT_C; | |
542 | } else | |
543 | return cur_setting; | |
be733919 BV |
544 | } |
545 | ||
546 | SR_PRIV int cem_dt_885x_weight_freq_set(const struct sr_dev_inst *sdi, int freqw) | |
547 | { | |
548 | struct dev_context *devc; | |
549 | int cur_setting, ret; | |
a4eb4b29 | 550 | int8_t tokens[5]; |
be733919 BV |
551 | |
552 | devc = sdi->priv; | |
553 | ||
554 | cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_FREQ_WEIGHT_A | SR_MQFLAG_SPL_FREQ_WEIGHT_C); | |
555 | if (cur_setting == freqw) | |
556 | /* Already set to this frequency weighting. */ | |
557 | return SR_OK; | |
558 | ||
559 | /* The toggle below needs the desired state in first position. */ | |
560 | if (freqw == SR_MQFLAG_SPL_FREQ_WEIGHT_A) { | |
561 | tokens[0] = TOKEN_WEIGHT_FREQ_A; | |
562 | tokens[1] = TOKEN_WEIGHT_FREQ_C; | |
563 | } else { | |
564 | tokens[0] = TOKEN_WEIGHT_FREQ_C; | |
565 | tokens[1] = TOKEN_WEIGHT_FREQ_A; | |
566 | } | |
567 | tokens[2] = -1; | |
568 | ||
569 | if (cur_setting == 0) { | |
570 | /* Didn't pick up device state yet. */ | |
571 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
572 | return SR_ERR; | |
573 | if (devc->token == tokens[0]) | |
574 | /* Nothing to do. */ | |
575 | return SR_OK; | |
576 | } | |
577 | ||
578 | /* 10ms timeout seems to work best for this. */ | |
579 | ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_WEIGHT_FREQ, tokens, 10); | |
e1af0e85 BV |
580 | |
581 | return ret; | |
582 | } | |
1487ce4f BV |
583 | |
584 | SR_PRIV int cem_dt_885x_weight_time_get(const struct sr_dev_inst *sdi) | |
585 | { | |
586 | struct dev_context *devc; | |
587 | int cur_setting; | |
a4eb4b29 | 588 | int8_t tokens[5]; |
1487ce4f BV |
589 | |
590 | devc = sdi->priv; | |
591 | ||
592 | cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S); | |
593 | if (cur_setting == 0) { | |
594 | /* Didn't pick up device state yet. */ | |
595 | tokens[0] = TOKEN_WEIGHT_TIME_FAST; | |
596 | tokens[1] = TOKEN_WEIGHT_TIME_SLOW; | |
597 | tokens[2] = -1; | |
598 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
599 | return SR_ERR; | |
600 | if (devc->token == TOKEN_WEIGHT_TIME_FAST) | |
601 | return SR_MQFLAG_SPL_TIME_WEIGHT_F; | |
602 | else | |
603 | return SR_MQFLAG_SPL_TIME_WEIGHT_S; | |
604 | } else | |
605 | return cur_setting; | |
1487ce4f BV |
606 | } |
607 | ||
608 | SR_PRIV int cem_dt_885x_weight_time_set(const struct sr_dev_inst *sdi, int timew) | |
609 | { | |
610 | struct dev_context *devc; | |
611 | int cur_setting, ret; | |
a4eb4b29 | 612 | int8_t tokens[5]; |
1487ce4f BV |
613 | |
614 | devc = sdi->priv; | |
615 | ||
616 | cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S); | |
617 | if (cur_setting == timew) | |
618 | /* Already set to this time weighting. */ | |
619 | return SR_OK; | |
620 | ||
621 | /* The toggle below needs the desired state in first position. */ | |
622 | if (timew == SR_MQFLAG_SPL_TIME_WEIGHT_F) { | |
623 | tokens[0] = TOKEN_WEIGHT_TIME_FAST; | |
624 | tokens[1] = TOKEN_WEIGHT_TIME_SLOW; | |
625 | } else { | |
626 | tokens[0] = TOKEN_WEIGHT_TIME_SLOW; | |
627 | tokens[1] = TOKEN_WEIGHT_TIME_FAST; | |
628 | } | |
629 | tokens[2] = -1; | |
630 | ||
631 | if (cur_setting == 0) { | |
632 | /* Didn't pick up device state yet. */ | |
633 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
634 | return SR_ERR; | |
635 | if (devc->token == tokens[0]) | |
636 | /* Nothing to do. */ | |
637 | return SR_OK; | |
638 | } | |
639 | ||
640 | /* 51ms timeout seems to work best for this. */ | |
641 | ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_WEIGHT_TIME, tokens, 51); | |
642 | ||
643 | return ret; | |
644 | } | |
a90e480c BV |
645 | |
646 | SR_PRIV int cem_dt_885x_holdmode_get(const struct sr_dev_inst *sdi, | |
647 | gboolean *holdmode) | |
648 | { | |
649 | struct dev_context *devc; | |
a4eb4b29 | 650 | int8_t tokens[5]; |
a90e480c BV |
651 | |
652 | devc = sdi->priv; | |
653 | ||
654 | if (devc->cur_mqflags == 0) { | |
655 | tokens[0] = TOKEN_HOLD_MAX; | |
656 | tokens[1] = TOKEN_HOLD_MIN; | |
657 | tokens[2] = TOKEN_HOLD_NONE; | |
658 | tokens[3] = -1; | |
659 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
660 | return SR_ERR; | |
661 | if (devc->token == TOKEN_HOLD_MAX) | |
662 | devc->cur_mqflags = SR_MQFLAG_MAX; | |
663 | else if (devc->token == TOKEN_HOLD_MIN) | |
664 | devc->cur_mqflags = SR_MQFLAG_MIN; | |
665 | } | |
666 | *holdmode = devc->cur_mqflags & (SR_MQFLAG_MAX | SR_MQFLAG_MIN); | |
667 | ||
668 | return SR_OK; | |
669 | } | |
670 | ||
671 | SR_PRIV int cem_dt_885x_holdmode_set(const struct sr_dev_inst *sdi, int holdmode) | |
672 | { | |
673 | struct dev_context *devc; | |
674 | int cur_setting, ret; | |
a4eb4b29 | 675 | int8_t tokens[5]; |
a90e480c BV |
676 | |
677 | devc = sdi->priv; | |
678 | ||
679 | /* The toggle below needs the desired state in first position. */ | |
680 | if (holdmode == SR_MQFLAG_MAX) { | |
681 | tokens[0] = TOKEN_HOLD_MAX; | |
682 | tokens[1] = TOKEN_HOLD_MIN; | |
683 | tokens[2] = TOKEN_HOLD_NONE; | |
684 | } else if (holdmode == SR_MQFLAG_MIN) { | |
685 | tokens[0] = TOKEN_HOLD_MIN; | |
686 | tokens[1] = TOKEN_HOLD_MAX; | |
687 | tokens[2] = TOKEN_HOLD_NONE; | |
688 | } else { | |
689 | tokens[0] = TOKEN_HOLD_NONE; | |
690 | tokens[1] = TOKEN_HOLD_MAX; | |
691 | tokens[2] = TOKEN_HOLD_MIN; | |
692 | } | |
693 | tokens[3] = -1; | |
694 | ||
695 | if (devc->cur_mqflags == 0) { | |
696 | /* Didn't pick up device state yet. */ | |
697 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
698 | return SR_ERR; | |
699 | if (devc->token == tokens[0]) | |
700 | /* Nothing to do. */ | |
701 | return SR_OK; | |
702 | } else { | |
703 | cur_setting = devc->cur_mqflags & (SR_MQFLAG_MAX | SR_MQFLAG_MIN); | |
704 | if (cur_setting == holdmode) | |
705 | /* Already set correctly. */ | |
706 | return SR_OK; | |
707 | } | |
708 | ||
709 | /* 51ms timeout seems to work best for this. */ | |
710 | ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_HOLD_MAX_MIN, tokens, 51); | |
711 | ||
712 | return ret; | |
713 | } | |
f157b2ee BV |
714 | |
715 | SR_PRIV int cem_dt_885x_meas_range_get(const struct sr_dev_inst *sdi, | |
716 | uint64_t *low, uint64_t *high) | |
717 | { | |
718 | struct dev_context *devc; | |
a4eb4b29 | 719 | int8_t tokens[5]; |
f157b2ee BV |
720 | |
721 | devc = sdi->priv; | |
722 | if (devc->cur_meas_range == 0) { | |
723 | tokens[0] = TOKEN_MEAS_RANGE_30_130; | |
724 | tokens[1] = TOKEN_MEAS_RANGE_30_80; | |
725 | tokens[2] = TOKEN_MEAS_RANGE_50_100; | |
726 | tokens[3] = TOKEN_MEAS_RANGE_80_130; | |
727 | tokens[4] = -1; | |
728 | if (wait_for_token(sdi, tokens, 0) != SR_OK) | |
729 | return SR_ERR; | |
730 | devc->cur_meas_range = devc->token; | |
731 | } | |
732 | ||
733 | switch (devc->cur_meas_range) { | |
734 | case TOKEN_MEAS_RANGE_30_130: | |
735 | *low = 30; | |
736 | *high = 130; | |
737 | break; | |
738 | case TOKEN_MEAS_RANGE_30_80: | |
739 | *low = 30; | |
740 | *high = 80; | |
741 | break; | |
742 | case TOKEN_MEAS_RANGE_50_100: | |
743 | *low = 50; | |
744 | *high = 100; | |
745 | break; | |
746 | case TOKEN_MEAS_RANGE_80_130: | |
747 | *low = 80; | |
748 | *high = 130; | |
749 | break; | |
750 | default: | |
751 | return SR_ERR; | |
752 | } | |
753 | ||
754 | return SR_OK; | |
755 | } | |
756 | ||
757 | SR_PRIV int cem_dt_885x_meas_range_set(const struct sr_dev_inst *sdi, | |
758 | uint64_t low, uint64_t high) | |
759 | { | |
760 | struct dev_context *devc; | |
761 | int ret; | |
a4eb4b29 | 762 | int8_t token, tokens[6]; |
f157b2ee BV |
763 | |
764 | devc = sdi->priv; | |
765 | if (low == 30 && high == 130) | |
766 | token = TOKEN_MEAS_RANGE_30_130; | |
767 | else if (low == 30 && high == 80) | |
768 | token = TOKEN_MEAS_RANGE_30_80; | |
769 | else if (low == 50 && high == 100) | |
770 | token = TOKEN_MEAS_RANGE_50_100; | |
771 | else if (low == 80 && high == 130) | |
772 | token = TOKEN_MEAS_RANGE_80_130; | |
773 | else | |
774 | return SR_ERR; | |
775 | ||
776 | sr_dbg("want 0x%.2x", token); | |
777 | /* The toggle below needs the desired state in first position. */ | |
778 | tokens[0] = token; | |
779 | tokens[1] = TOKEN_MEAS_RANGE_30_130; | |
780 | tokens[2] = TOKEN_MEAS_RANGE_30_80; | |
781 | tokens[3] = TOKEN_MEAS_RANGE_50_100; | |
782 | tokens[4] = TOKEN_MEAS_RANGE_80_130; | |
783 | tokens[5] = -1; | |
784 | ||
785 | if (devc->cur_meas_range == 0) { | |
786 | /* 110ms should be enough for two of these announcements */ | |
787 | if (wait_for_token(sdi, tokens, 110) != SR_OK) | |
788 | return SR_ERR; | |
789 | devc->cur_meas_range = devc->token; | |
790 | } | |
791 | ||
792 | if (devc->cur_meas_range == token) | |
793 | /* Already set to this range. */ | |
794 | return SR_OK; | |
795 | ||
796 | /* For measurement range, it works best to ignore announcements of the | |
797 | * current setting and keep resending the toggle quickly. */ | |
798 | tokens[1] = -1; | |
799 | ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_MEAS_RANGE, tokens, 11); | |
800 | ||
801 | return ret; | |
802 | } | |
4c22355f BV |
803 | |
804 | SR_PRIV int cem_dt_885x_power_off(const struct sr_dev_inst *sdi) | |
805 | { | |
806 | struct sr_serial_dev_inst *serial; | |
807 | char c, cmd; | |
808 | ||
809 | serial = sdi->conn; | |
810 | ||
4c22355f BV |
811 | cmd = CMD_TOGGLE_POWER_OFF; |
812 | while (TRUE) { | |
813 | serial_flush(serial); | |
d7b269da | 814 | if (serial_write_nonblocking(serial, (const void *)&cmd, 1) != 1) |
4c22355f BV |
815 | return SR_ERR; |
816 | /* It never takes more than 23ms for the next token to arrive. */ | |
817 | g_usleep(25 * 1000); | |
d7b269da | 818 | if (serial_read_nonblocking(serial, &c, 1) != 1) |
4c22355f BV |
819 | /* Device is no longer responding. Good! */ |
820 | break; | |
821 | } | |
822 | ||
823 | /* In case the user manually turns on the device again, reset | |
824 | * the port back to blocking. */ | |
825 | serial_close(serial); | |
826 | serial_open(serial, SERIAL_RDWR); | |
827 | ||
828 | return SR_OK; | |
829 | } |