libsigrok/hardware/atten-pps3xxx/protocol.h

103 lines
2.5 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBSIGROK_HARDWARE_ATTEN_PPS3XXX_PROTOCOL_H
#define LIBSIGROK_HARDWARE_ATTEN_PPS3XXX_PROTOCOL_H
#include <stdint.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#define LOG_PREFIX "atten-pps3xxx"
/* Packets to/from the device. */
#define PACKET_SIZE 24
enum {
PPS_3203T_3S,
PPS_3203T_2S,
PPS_3205T_3S,
PPS_3205T_2S,
PPS_3003S,
PPS_3005S,
};
/* Maximum number of output channels handled by this driver. */
#define MAX_CHANNELS 3
#define CHANMODE_INDEPENDENT 1 << 0
#define CHANMODE_SERIES 1 << 1
#define CHANMODE_PARALLEL 1 << 2
struct channel_spec {
/* Min, max, step. */
gdouble voltage[3];
gdouble current[3];
};
struct pps_model {
int modelid;
char *name;
int channel_modes;
int num_channels;
struct channel_spec channels[MAX_CHANNELS];
};
struct per_channel_config {
/* Received from device. */
gdouble output_voltage_last;
gdouble output_current_last;
gboolean output_enabled;
/* Set by frontend. */
gdouble output_voltage_max;
gdouble output_current_max;
gboolean output_enabled_set;
};
/** Private, per-device-instance driver context. */
struct dev_context {
/* Model-specific information */
struct pps_model *model;
/* Acquisition state */
gboolean acquisition_running;
/* Operational state */
gboolean config_dirty;
struct per_channel_config *config;
/* Received from device. */
int channel_mode;
gboolean over_current_protection;
/* Set by frontend. */
int channel_mode_set;
gboolean over_current_protection_set;
/* Temporary state across callbacks */
uint8_t packet[PACKET_SIZE];
int packet_size;
};
SR_PRIV int atten_pps3xxx_receive_data(int fd, int revents, void *cb_data);
SR_PRIV void send_packet(const struct sr_dev_inst *sdi, uint8_t *packet);
SR_PRIV void send_config(const struct sr_dev_inst *sdi);
#endif