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  * 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
  32 enum 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 /* Defines the SCPI dialect */
  71 enum pps_scpi_dialect {
  72         SCPI_DIALECT_UNKNOWN = 1,
  73         SCPI_DIALECT_HP_COMP,
  74         SCPI_DIALECT_HP_66XXB,
  75         SCPI_DIALECT_PHILIPS,
  76 };
  77
  78 /*
  79  * These are bit values denoting features a device can have either globally,
  80  * in scpi_pps.features, or on a per-channel-group basis in
  81  * channel_group_spec.features.
  82  */
  83 enum pps_features {
  84         PPS_OTP           = (1 << 0),
  85         PPS_OVP           = (1 << 1),
  86         PPS_OCP           = (1 << 2),
  87         PPS_INDEPENDENT   = (1 << 3),
  88         PPS_SERIES        = (1 << 4),
  89         PPS_PARALLEL      = (1 << 5),
  90 };
  91
  92 struct scpi_pps {
  93         const char *vendor;
  94         const char *model;
  95         const enum pps_scpi_dialect dialect;
  96         uint64_t features;
  97         const uint32_t *devopts;
  98         unsigned int num_devopts;
  99         const uint32_t *devopts_cg;
 100         unsigned int num_devopts_cg;
 101         const struct channel_spec *channels;
 102         unsigned int num_channels;
 103         const struct channel_group_spec *channel_groups;
 104         unsigned int num_channel_groups;
 105         const struct scpi_command *commands;
 106         int (*probe_channels) (struct sr_dev_inst *sdi, struct sr_scpi_hw_info *hwinfo,
 107                 struct channel_spec **channels, unsigned int *num_channels,
 108                 struct channel_group_spec **channel_groups, unsigned int *num_channel_groups);
 109 };
 110
 111 struct channel_spec {
 112         const char *name;
 113         /* Min, max, programming resolution, spec digits, encoding digits. */
 114         double voltage[5];
 115         double current[5];
 116         double power[5];
 117         double frequency[5];
 118         double ovp[5];
 119         double ocp[5];
 120 };
 121
 122 struct channel_group_spec {
 123         const char *name;
 124         uint64_t channel_index_mask;
 125         uint64_t features;
 126 };
 127
 128 struct pps_channel {
 129         enum sr_mq mq;
 130         unsigned int hw_output_idx;
 131         const char *hwname;
 132         int digits;
 133 };
 134
 135 struct pps_channel_instance {
 136         enum sr_mq mq;
 137         int command;
 138         const char *prefix;
 139 };
 140
 141 struct pps_channel_group {
 142         uint64_t features;
 143 };
 144
 145 enum acq_states {
 146         STATE_VOLTAGE,
 147         STATE_CURRENT,
 148         STATE_STOP,
 149 };
 150
 151 struct dev_context {
 152         const struct scpi_pps *device;
 153
 154         gboolean beeper_was_set;
 155         struct channel_spec *channels;
 156         struct channel_group_spec *channel_groups;
 157
 158         struct sr_channel *cur_acquisition_channel;
 159         struct sr_sw_limits limits;
 160 };
 161
 162 SR_PRIV extern unsigned int num_pps_profiles;
 163 SR_PRIV extern const struct scpi_pps pps_profiles[];
 164
 165 SR_PRIV int select_channel(const struct sr_dev_inst *sdi, struct sr_channel *ch);
 166 SR_PRIV int scpi_pps_receive_data(int fd, int revents, void *cb_data);
 167
 168 #endif