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scpi-pps: Use software sample and time limits.
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2017 Frank Stettner <frank-stettner@gmx.net>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21#ifndef LIBSIGROK_HARDWARE_SCPI_PPS_PROTOCOL_H
22#define LIBSIGROK_HARDWARE_SCPI_PPS_PROTOCOL_H
23
24#include <stdint.h>
25#include <glib.h>
26#include <libsigrok/libsigrok.h>
27#include "libsigrok-internal.h"
28#include "scpi.h"
29
30#define LOG_PREFIX "scpi-pps"
31
32enum pps_scpi_cmds {
33 SCPI_CMD_REMOTE = 1,
34 SCPI_CMD_LOCAL,
35 SCPI_CMD_BEEPER,
36 SCPI_CMD_BEEPER_ENABLE,
37 SCPI_CMD_BEEPER_DISABLE,
38 SCPI_CMD_SELECT_CHANNEL,
39 SCPI_CMD_GET_MEAS_VOLTAGE,
40 SCPI_CMD_GET_MEAS_CURRENT,
41 SCPI_CMD_GET_MEAS_POWER,
42 SCPI_CMD_GET_MEAS_FREQUENCY,
43 SCPI_CMD_GET_VOLTAGE_TARGET,
44 SCPI_CMD_SET_VOLTAGE_TARGET,
45 SCPI_CMD_GET_FREQUENCY_TARGET,
46 SCPI_CMD_SET_FREQUENCY_TARGET,
47 SCPI_CMD_GET_CURRENT_LIMIT,
48 SCPI_CMD_SET_CURRENT_LIMIT,
49 SCPI_CMD_GET_OUTPUT_ENABLED,
50 SCPI_CMD_SET_OUTPUT_ENABLE,
51 SCPI_CMD_SET_OUTPUT_DISABLE,
52 SCPI_CMD_GET_OUTPUT_REGULATION,
53 SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION,
54 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE,
55 SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE,
56 SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED,
57 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE,
58 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE,
59 SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE,
60 SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD,
61 SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD,
62 SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED,
63 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE,
64 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE,
65 SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE,
66 SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD,
67 SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD,
68};
69
70/*
71 * These are bit values denoting features a device can have either globally,
72 * in scpi_pps.features, or on a per-channel-group basis in
73 * channel_group_spec.features.
74 */
75enum pps_features {
76 PPS_OTP = (1 << 0),
77 PPS_OVP = (1 << 1),
78 PPS_OCP = (1 << 2),
79 PPS_INDEPENDENT = (1 << 3),
80 PPS_SERIES = (1 << 4),
81 PPS_PARALLEL = (1 << 5),
82};
83
84struct scpi_pps {
85 const char *vendor;
86 const char *model;
87 uint64_t features;
88 const uint32_t *devopts;
89 unsigned int num_devopts;
90 const uint32_t *devopts_cg;
91 unsigned int num_devopts_cg;
92 const struct channel_spec *channels;
93 unsigned int num_channels;
94 const struct channel_group_spec *channel_groups;
95 unsigned int num_channel_groups;
96 const struct scpi_command *commands;
97 int (*probe_channels) (struct sr_dev_inst *sdi, struct sr_scpi_hw_info *hwinfo,
98 struct channel_spec **channels, unsigned int *num_channels,
99 struct channel_group_spec **channel_groups, unsigned int *num_channel_groups);
100};
101
102struct channel_spec {
103 const char *name;
104 /* Min, max, programming resolution, spec digits, encoding digits. */
105 double voltage[5];
106 double current[5];
107 double power[5];
108 double frequency[5];
109 double ovp[5];
110 double ocp[5];
111};
112
113struct channel_group_spec {
114 const char *name;
115 uint64_t channel_index_mask;
116 uint64_t features;
117};
118
119struct pps_channel {
120 enum sr_mq mq;
121 unsigned int hw_output_idx;
122 const char *hwname;
123 int digits;
124};
125
126struct pps_channel_instance {
127 enum sr_mq mq;
128 int command;
129 const char *prefix;
130};
131
132struct pps_channel_group {
133 uint64_t features;
134};
135
136enum acq_states {
137 STATE_VOLTAGE,
138 STATE_CURRENT,
139 STATE_STOP,
140};
141
142struct dev_context {
143 const struct scpi_pps *device;
144
145 gboolean beeper_was_set;
146 struct channel_spec *channels;
147 struct channel_group_spec *channel_groups;
148
149 struct sr_channel *cur_acquisition_channel;
150 struct sr_sw_limits limits;
151};
152
153SR_PRIV extern unsigned int num_pps_profiles;
154SR_PRIV extern const struct scpi_pps pps_profiles[];
155
156SR_PRIV int select_channel(const struct sr_dev_inst *sdi, struct sr_channel *ch);
157SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data);
158
159#endif