libsigrok/hardware/saleae-logic16/protocol.h

89 lines
2.8 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* 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_SALEAE_LOGIC16_PROTOCOL_H
#define LIBSIGROK_HARDWARE_SALEAE_LOGIC16_PROTOCOL_H
#include <stdint.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#define LOG_PREFIX "saleae-logic16"
enum voltage_range {
VOLTAGE_RANGE_UNKNOWN,
VOLTAGE_RANGE_18_33_V, /* 1.8V and 3.3V logic */
VOLTAGE_RANGE_5_V, /* 5V logic */
};
/** Private, per-device-instance driver context. */
struct dev_context {
/*
* Since we can't keep track of a Logic16 device after upgrading
* the firmware (it renumerates into a different device address
* after the upgrade) this is like a global lock. No device will open
* until a proper delay after the last device was upgraded.
*/
int64_t fw_updated;
/** The currently configured samplerate of the device. */
uint64_t cur_samplerate;
/** Maximum number of samples to capture, if nonzero. */
uint64_t limit_samples;
/** The currently configured input voltage of the device. */
enum voltage_range cur_voltage_range;
/** The input voltage selected by the user. */
enum voltage_range selected_voltage_range;
/** Channels to use. */
uint16_t cur_channels;
/* EEPROM data from address 8. */
uint8_t eeprom_data[8];
int64_t num_samples;
int submitted_transfers;
int empty_transfer_count;
int num_channels, cur_channel;
uint16_t channel_masks[16];
uint16_t channel_data[16];
uint8_t *convbuffer;
size_t convbuffer_size;
void *cb_data;
unsigned int num_transfers;
struct libusb_transfer **transfers;
struct sr_context *ctx;
};
SR_PRIV int logic16_setup_acquisition(const struct sr_dev_inst *sdi,
uint64_t samplerate, uint16_t channels);
SR_PRIV int logic16_start_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi);
SR_PRIV int logic16_init_device(const struct sr_dev_inst *sdi);
SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer);
#endif