src/hardware/scpi-pps/protocol.h

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2014 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
  20 #ifndef LIBSIGROK_HARDWARE_SCPI_PPS_PROTOCOL_H
  21 #define LIBSIGROK_HARDWARE_SCPI_PPS_PROTOCOL_H
  22
  23 #include <stdint.h>
  24 #include <glib.h>
  25 #include <libsigrok/libsigrok.h>
  26 #include "libsigrok-internal.h"
  27 #include "scpi.h"
  28
  29 #define LOG_PREFIX "scpi-pps"
  30
  31 enum pps_scpi_cmds {
  32         SCPI_CMD_REMOTE,
  33         SCPI_CMD_LOCAL,
  34         SCPI_CMD_BEEPER,
  35         SCPI_CMD_BEEPER_ENABLE,
  36         SCPI_CMD_BEEPER_DISABLE,
  37         SCPI_CMD_SELECT_CHANNEL,
  38         SCPI_CMD_GET_MEAS_VOLTAGE,
  39         SCPI_CMD_GET_MEAS_CURRENT,
  40         SCPI_CMD_GET_MEAS_POWER,
  41         SCPI_CMD_GET_MEAS_FREQUENCY,
  42         SCPI_CMD_GET_VOLTAGE_TARGET,
  43         SCPI_CMD_SET_VOLTAGE_TARGET,
  44         SCPI_CMD_GET_FREQUENCY_TARGET,
  45         SCPI_CMD_SET_FREQUENCY_TARGET,
  46         SCPI_CMD_GET_CURRENT_LIMIT,
  47         SCPI_CMD_SET_CURRENT_LIMIT,
  48         SCPI_CMD_GET_OUTPUT_ENABLED,
  49         SCPI_CMD_SET_OUTPUT_ENABLE,
  50         SCPI_CMD_SET_OUTPUT_DISABLE,
  51         SCPI_CMD_GET_OUTPUT_REGULATION,
  52         SCPI_CMD_GET_OVER_TEMPERATURE_PROTECTION,
  53         SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_ENABLE,
  54         SCPI_CMD_SET_OVER_TEMPERATURE_PROTECTION_DISABLE,
  55         SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ENABLED,
  56         SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_ENABLE,
  57         SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_DISABLE,
  58         SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_ACTIVE,
  59         SCPI_CMD_GET_OVER_VOLTAGE_PROTECTION_THRESHOLD,
  60         SCPI_CMD_SET_OVER_VOLTAGE_PROTECTION_THRESHOLD,
  61         SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ENABLED,
  62         SCPI_CMD_SET_OVER_CURRENT_PROTECTION_ENABLE,
  63         SCPI_CMD_SET_OVER_CURRENT_PROTECTION_DISABLE,
  64         SCPI_CMD_GET_OVER_CURRENT_PROTECTION_ACTIVE,
  65         SCPI_CMD_GET_OVER_CURRENT_PROTECTION_THRESHOLD,
  66         SCPI_CMD_SET_OVER_CURRENT_PROTECTION_THRESHOLD,
  67 };
  68
  69 /*
  70  * These are bit values denoting features a device can have either globally,
  71  * in scpi_pps.features, or on a per-channel-group basis in
  72  * channel_group_spec.features.
  73  */
  74 enum pps_features {
  75         PPS_OTP           = (1 << 0),
  76         PPS_OVP           = (1 << 1),
  77         PPS_OCP           = (1 << 2),
  78         PPS_INDEPENDENT   = (1 << 3),
  79         PPS_SERIES        = (1 << 4),
  80         PPS_PARALLEL      = (1 << 5),
  81 };
  82
  83 struct scpi_pps {
  84         const char *vendor;
  85         const char *model;
  86         uint64_t features;
  87         const uint32_t *devopts;
  88         unsigned int num_devopts;
  89         const uint32_t *devopts_cg;
  90         unsigned int num_devopts_cg;
  91         const struct channel_spec *channels;
  92         unsigned int num_channels;
  93         const struct channel_group_spec *channel_groups;
  94         unsigned int num_channel_groups;
  95         const struct scpi_command *commands;
  96         int (*probe_channels) (struct sr_dev_inst *sdi, struct sr_scpi_hw_info *hwinfo,
  97                 struct channel_spec **channels, unsigned int *num_channels,
  98                 struct channel_group_spec **channel_groups, unsigned int *num_channel_groups);
  99 };
 100
 101 struct channel_spec {
 102         const char *name;
 103         /* Min, max, programming resolution, spec digits, encoding digits. */
 104         double voltage[5];
 105         double current[5];
 106         double power[5];
 107         double frequency[5];
 108 };
 109
 110 struct channel_group_spec {
 111         const char *name;
 112         uint64_t channel_index_mask;
 113         uint64_t features;
 114 };
 115
 116 struct pps_channel {
 117         enum sr_mq mq;
 118         unsigned int hw_output_idx;
 119         const char *hwname;
 120         int digits;
 121 };
 122
 123 struct pps_channel_instance {
 124         enum sr_mq mq;
 125         int command;
 126         const char *prefix;
 127 };
 128
 129 struct pps_channel_group {
 130         uint64_t features;
 131 };
 132
 133 enum acq_states {
 134         STATE_VOLTAGE,
 135         STATE_CURRENT,
 136         STATE_STOP,
 137 };
 138
 139 struct dev_context {
 140         const struct scpi_pps *device;
 141
 142         gboolean beeper_was_set;
 143         struct channel_spec *channels;
 144         struct channel_group_spec *channel_groups;
 145
 146         struct sr_channel *cur_channel;
 147 };
 148
 149 SR_PRIV extern unsigned int num_pps_profiles;
 150 SR_PRIV extern const struct scpi_pps pps_profiles[];
 151
 152 SR_PRIV int select_channel(const struct sr_dev_inst *sdi, struct sr_channel *ch);
 153 SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data);
 154
 155 #endif