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068db0fb TK |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2020 Timo Kokkonen <tjko@iki.fi> | |
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> | |
02feeb30 TK |
21 | #include <string.h> |
22 | #include "scpi.h" | |
068db0fb TK |
23 | #include "protocol.h" |
24 | ||
02feeb30 TK |
25 | SR_PRIV const char *rigol_dg_waveform_to_string(enum waveform_type type) |
26 | { | |
27 | switch (type) { | |
28 | case WF_DC: | |
29 | return "DC"; | |
30 | case WF_SINE: | |
31 | return "Sine"; | |
32 | case WF_SQUARE: | |
33 | return "Square"; | |
34 | case WF_RAMP: | |
35 | return "Ramp"; | |
36 | case WF_PULSE: | |
37 | return "Pulse"; | |
38 | case WF_NOISE: | |
39 | return "Noise"; | |
40 | case WF_ARB: | |
41 | return "Arb"; | |
42 | } | |
43 | ||
44 | return "Unknown"; | |
45 | } | |
46 | ||
47 | SR_PRIV const struct waveform_spec *rigol_dg_get_waveform_spec( | |
48 | const struct channel_spec *ch, enum waveform_type wf) | |
49 | { | |
50 | const struct waveform_spec *spec; | |
51 | unsigned int i; | |
52 | ||
53 | spec = NULL; | |
54 | for (i = 0; i < ch->num_waveforms; i++) { | |
55 | if (ch->waveforms[i].waveform == wf) { | |
56 | spec = &ch->waveforms[i]; | |
57 | break; | |
58 | } | |
59 | } | |
60 | ||
61 | return spec; | |
62 | } | |
63 | ||
64 | SR_PRIV int rigol_dg_get_channel_state(const struct sr_dev_inst *sdi, | |
65 | const struct sr_channel_group *cg) | |
66 | { | |
67 | struct dev_context *devc; | |
68 | struct sr_scpi_dev_inst *scpi; | |
69 | struct sr_channel *ch; | |
70 | struct channel_status *ch_status; | |
71 | const char *command; | |
72 | GVariant *data; | |
73 | gchar *response, **params; | |
74 | const gchar *s; | |
75 | enum waveform_type wf; | |
76 | double freq, ampl, offset, phase; | |
77 | int ret; | |
78 | ||
79 | devc = sdi->priv; | |
80 | scpi = sdi->conn; | |
81 | data = NULL; | |
82 | params = NULL; | |
83 | response = NULL; | |
84 | ret = SR_ERR_NA; | |
85 | ||
86 | if (!sdi || !cg) | |
87 | return SR_ERR_BUG; | |
88 | ||
89 | ch = cg->channels->data; | |
90 | ch_status = &devc->ch_status[ch->index]; | |
91 | ||
92 | command = sr_scpi_cmd_get(devc->cmdset, PSG_CMD_GET_SOURCE); | |
93 | if (command && *command) { | |
94 | sr_scpi_get_opc(scpi); | |
95 | ret = sr_scpi_cmd_resp(sdi, devc->cmdset, | |
96 | PSG_CMD_SELECT_CHANNEL, cg->name, &data, | |
97 | G_VARIANT_TYPE_STRING, PSG_CMD_GET_SOURCE, cg->name); | |
98 | if (ret != SR_OK) | |
99 | goto done; | |
100 | response = g_variant_dup_string(data, NULL); | |
101 | g_strstrip(response); | |
102 | s = sr_scpi_unquote_string(response); | |
103 | sr_spew("Channel state: '%s'", s); | |
104 | params = g_strsplit(s, ",", 0); | |
105 | if (!params[0]) | |
106 | goto done; | |
107 | ||
108 | /* First parameter is the waveform type */ | |
109 | if (!(s = params[0])) | |
110 | goto done; | |
111 | if (g_ascii_strncasecmp(s, "SIN", strlen("SIN")) == 0) | |
112 | wf = WF_SINE; | |
113 | else if (g_ascii_strncasecmp(s, "SQU", strlen("SQU")) == 0) | |
114 | wf = WF_SQUARE; | |
115 | else if (g_ascii_strncasecmp(s, "RAMP", strlen("RAMP")) == 0) | |
116 | wf = WF_RAMP; | |
117 | else if (g_ascii_strncasecmp(s, "PULSE", strlen("PULSE")) == 0) | |
118 | wf = WF_PULSE; | |
119 | else if (g_ascii_strncasecmp(s, "NOISE", strlen("NOISE")) == 0) | |
120 | wf = WF_NOISE; | |
121 | else if (g_ascii_strncasecmp(s, "USER", strlen("USER")) == 0) | |
122 | wf = WF_ARB; | |
123 | else if (g_ascii_strncasecmp(s, "DC", strlen("DC")) == 0) | |
124 | wf = WF_DC; | |
125 | else | |
126 | goto done; | |
127 | ch_status->wf = wf; | |
128 | ch_status->wf_spec = rigol_dg_get_waveform_spec( | |
129 | &devc->device->channels[ch->index], wf); | |
130 | ||
131 | /* Second parameter if the frequency (or "DEF" if not applicable) */ | |
132 | if (!(s = params[1])) | |
133 | goto done; | |
134 | freq = g_ascii_strtod(s, NULL); | |
135 | ch_status->freq = freq; | |
136 | ||
137 | /* Third parameter if the amplitude (or "DEF" if not applicable) */ | |
138 | if (!(s = params[2])) | |
139 | goto done; | |
140 | ampl = g_ascii_strtod(s, NULL); | |
141 | ch_status->ampl = ampl; | |
142 | ||
143 | /* Fourth parameter if the offset (or "DEF" if not applicable) */ | |
144 | if (!(s = params[3])) | |
145 | goto done; | |
146 | offset = g_ascii_strtod(s, NULL); | |
147 | ch_status->offset = offset; | |
148 | ||
149 | /* Fifth parameter if the phase (or "DEF" if not applicable) */ | |
150 | if (!(s = params[4])) | |
151 | goto done; | |
152 | phase = g_ascii_strtod(s, NULL); | |
153 | ch_status->phase = phase; | |
154 | ||
155 | ret = SR_OK; | |
156 | } | |
157 | ||
158 | done: | |
159 | g_variant_unref(data); | |
160 | g_free(response); | |
161 | g_strfreev(params); | |
162 | return ret; | |
163 | } | |
164 | ||
165 | static void rigol_dg_send_channel_value(const struct sr_dev_inst *sdi, | |
166 | struct sr_channel *ch, double value, enum sr_mq mq, | |
167 | enum sr_unit unit, int digits) | |
168 | { | |
169 | struct sr_datafeed_packet packet; | |
170 | struct sr_datafeed_analog analog; | |
171 | struct sr_analog_encoding encoding; | |
172 | struct sr_analog_meaning meaning; | |
173 | struct sr_analog_spec spec; | |
174 | double val; | |
175 | ||
176 | val = value; | |
177 | sr_analog_init(&analog, &encoding, &meaning, &spec, digits); | |
178 | analog.meaning->channels = g_slist_append(NULL, ch); | |
179 | analog.num_samples = 1; | |
180 | analog.data = &val; | |
181 | analog.encoding->unitsize = sizeof(val); | |
182 | analog.encoding->is_float = TRUE; | |
183 | analog.encoding->digits = digits; | |
184 | analog.meaning->mq = mq; | |
185 | analog.meaning->unit = unit; | |
186 | ||
187 | packet.type = SR_DF_ANALOG; | |
188 | packet.payload = &analog; | |
189 | sr_session_send(sdi, &packet); | |
190 | g_slist_free(analog.meaning->channels); | |
191 | } | |
192 | ||
068db0fb TK |
193 | SR_PRIV int rigol_dg_receive_data(int fd, int revents, void *cb_data) |
194 | { | |
02feeb30 TK |
195 | struct sr_dev_inst *sdi; |
196 | struct sr_scpi_dev_inst *scpi; | |
068db0fb | 197 | struct dev_context *devc; |
02feeb30 TK |
198 | const char *cmd, *s; |
199 | char *response, **params; | |
200 | double meas[5]; | |
201 | GSList *l; | |
202 | int i, start_idx, ret; | |
068db0fb TK |
203 | |
204 | (void)fd; | |
02feeb30 TK |
205 | (void)revents; |
206 | response = NULL; | |
207 | params = NULL; | |
068db0fb | 208 | |
02feeb30 TK |
209 | sdi = cb_data; |
210 | if (!sdi) | |
211 | return TRUE; | |
212 | scpi = sdi->conn; | |
213 | devc = sdi->priv; | |
214 | if (!scpi || !devc) | |
068db0fb TK |
215 | return TRUE; |
216 | ||
02feeb30 TK |
217 | cmd = sr_scpi_cmd_get(devc->cmdset, PSG_CMD_COUNTER_MEASURE); |
218 | if (!cmd || !*cmd) | |
068db0fb TK |
219 | return TRUE; |
220 | ||
02feeb30 TK |
221 | sr_scpi_get_opc(scpi); |
222 | ret = sr_scpi_get_string(scpi, cmd, &response); | |
223 | if (ret != SR_OK) { | |
224 | sr_info("Error getting measurement from counter: %d", ret); | |
225 | sr_dev_acquisition_stop(sdi); | |
226 | return TRUE; | |
227 | } | |
228 | g_strstrip(response); | |
229 | ||
230 | /* | |
231 | * Parse measurement string: | |
232 | * frequency, period, duty cycle, width+, width- | |
233 | */ | |
234 | params = g_strsplit(response, ",", 0); | |
235 | for (i = 0; i < 5; i++) { | |
236 | if (!(s = params[i])) | |
237 | goto done; | |
238 | meas[i] = g_ascii_strtod(s, NULL); | |
068db0fb | 239 | } |
02feeb30 TK |
240 | sr_spew("%s: freq=%.10E, period=%.10E, duty=%.10E, width+=%.10E," |
241 | "width-=%.10E", __func__, | |
242 | meas[0], meas[1], meas[2], meas[3], meas[4]); | |
243 | ||
244 | std_session_send_df_frame_begin(sdi); | |
245 | start_idx = devc->device->num_channels; | |
246 | ||
247 | /* Frequency */ | |
248 | l = g_slist_nth(sdi->channels, start_idx++); | |
249 | rigol_dg_send_channel_value(sdi, l->data, meas[0], SR_MQ_FREQUENCY, | |
250 | SR_UNIT_HERTZ, 10); | |
251 | ||
252 | /* Period */ | |
253 | l = g_slist_nth(sdi->channels, start_idx++); | |
254 | rigol_dg_send_channel_value(sdi, l->data, meas[1], SR_MQ_TIME, | |
255 | SR_UNIT_SECOND, 10); | |
256 | ||
257 | /* Duty Cycle */ | |
258 | l = g_slist_nth(sdi->channels, start_idx++); | |
259 | rigol_dg_send_channel_value(sdi, l->data, meas[2], SR_MQ_DUTY_CYCLE, | |
260 | SR_UNIT_PERCENTAGE, 3); | |
261 | ||
262 | /* Pulse Width */ | |
263 | l = g_slist_nth(sdi->channels, start_idx++); | |
264 | rigol_dg_send_channel_value(sdi, l->data, meas[3], SR_MQ_PULSE_WIDTH, | |
265 | SR_UNIT_SECOND, 10); | |
266 | ||
267 | std_session_send_df_frame_end(sdi); | |
268 | sr_sw_limits_update_samples_read(&devc->limits, 1); | |
269 | ||
270 | if (sr_sw_limits_check(&devc->limits)) | |
271 | sr_dev_acquisition_stop(sdi); | |
068db0fb | 272 | |
02feeb30 TK |
273 | done: |
274 | g_free(response); | |
275 | g_strfreev(params); | |
068db0fb TK |
276 | return TRUE; |
277 | } |