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