122 lines
3.5 KiB
C
122 lines
3.5 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
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* Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
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* Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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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_KINGST_LA2016_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H
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#include <stdint.h>
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#include <glib.h>
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#include <libsigrok/libsigrok.h>
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "kingst-la2016"
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#define LA2016_VID 0x77a1
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#define LA2016_PID 0x01a2
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#define USB_INTERFACE 0
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#define USB_CONFIGURATION 1
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#define LA2016_BULK_MAX 8388608
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#define MAX_RENUM_DELAY_MS 3000
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#define DEFAULT_TIMEOUT_MS 200
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#define LA2016_THR_VOLTAGE_MIN 0.40
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#define LA2016_THR_VOLTAGE_MAX 4.00
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#define LA2016_NUM_SAMPLES_MIN 256
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#define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000)
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typedef struct pwm_setting_dev {
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uint32_t period;
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uint32_t duty;
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} pwm_setting_dev_t;
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typedef struct trigger_cfg {
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uint32_t channels;
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uint32_t enabled;
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uint32_t level;
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uint32_t high_or_falling;
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} trigger_cfg_t;
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typedef struct capture_info {
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uint32_t n_rep_packets;
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uint32_t n_rep_packets_before_trigger;
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uint32_t write_pos;
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} capture_info_t;
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#define NUM_PACKETS_IN_CHUNK 5
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#define TRANSFER_PACKET_LENGTH 16
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typedef struct pwm_setting {
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uint8_t enabled;
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float freq;
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float duty;
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} pwm_setting_t;
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struct dev_context {
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struct sr_context *ctx;
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int64_t fw_updated;
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pwm_setting_t pwm_setting[2];
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unsigned int threshold_voltage_idx;
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float threshold_voltage;
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uint64_t cur_samplerate;
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uint64_t limit_samples;
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uint64_t capture_ratio;
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uint16_t cur_channels;
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int num_channels;
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uint32_t bitstream_size;
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/* derived stuff */
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uint64_t pre_trigger_size;
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/* state after sampling */
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int had_triggers_configured;
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int have_trigger;
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int transfer_finished;
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capture_info_t info;
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unsigned int n_transfer_packets_to_read; /* each with 5 acq packets */
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unsigned int n_bytes_to_read;
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unsigned int n_reps_until_trigger;
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unsigned int reading_behind_trigger;
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uint64_t total_samples;
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uint32_t read_pos;
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unsigned int convbuffer_size;
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uint8_t *convbuffer;
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struct libusb_transfer *transfer;
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};
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SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, libusb_device *dev, uint16_t product_id);
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SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_stop_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_has_triggered(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_start_retrieval(const struct sr_dev_inst *sdi, libusb_transfer_cb_fn cb);
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SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi);
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SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi);
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#endif
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