2 * This file is part of the libsigrok project.
4 * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
5 * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
6 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
7 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #ifndef LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H
24 #define LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H
27 #include <libsigrok/libsigrok.h>
30 #define LOG_PREFIX "kingst-la2016"
32 #define LA2016_VID 0x77a1
33 #define LA2016_PID 0x01a2
34 #define USB_INTERFACE 0
35 #define USB_CONFIGURATION 1
37 #define LA2016_BULK_MAX 8388608
40 * On Windows sigrok uses WinUSB RAW_IO policy which requires the
41 * USB transfer buffer size to be a multiple of the endpoint max packet
42 * size, which is 512 bytes in this case. Also, the maximum allowed size of
43 * the transfer buffer is normally read from WinUSB_GetPipePolicy API but
44 * libusb does not expose this function. Typically, max size is 2MB.
46 #define LA2016_EP6_PKTSZ 512 /* endpoint 6 max packet size */
47 #define LA2016_USB_BUFSZ (256 * 2 * LA2016_EP6_PKTSZ) /* 256KB buffer */
49 #define MAX_RENUM_DELAY_MS 3000
50 #define DEFAULT_TIMEOUT_MS 200
52 #define LA2016_THR_VOLTAGE_MIN 0.40
53 #define LA2016_THR_VOLTAGE_MAX 4.00
55 #define LA2016_NUM_SAMPLES_MIN 256
56 #define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000)
58 typedef struct pwm_setting_dev {
63 typedef struct trigger_cfg {
67 uint32_t high_or_falling;
70 typedef struct capture_info {
71 uint32_t n_rep_packets;
72 uint32_t n_rep_packets_before_trigger;
76 #define NUM_PACKETS_IN_CHUNK 5
77 #define TRANSFER_PACKET_LENGTH 16
79 typedef struct pwm_setting {
86 struct sr_context *ctx;
89 pwm_setting_t pwm_setting[2];
90 unsigned int threshold_voltage_idx;
91 float threshold_voltage;
92 uint64_t max_samplerate;
93 uint64_t cur_samplerate;
94 uint64_t limit_samples;
95 uint64_t capture_ratio;
96 uint16_t cur_channels;
99 uint32_t bitstream_size;
102 uint64_t pre_trigger_size;
104 /* state after sampling */
105 int had_triggers_configured;
107 int transfer_finished;
109 unsigned int n_transfer_packets_to_read; /* each with 5 acq packets */
110 unsigned int n_bytes_to_read;
111 unsigned int n_reps_until_trigger;
112 unsigned int reading_behind_trigger;
113 uint64_t total_samples;
116 unsigned int convbuffer_size;
118 struct libusb_transfer *transfer;
121 SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, libusb_device *dev, uint16_t product_id);
122 SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi);
123 SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi);
124 SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi);
125 SR_PRIV int la2016_receive_data(int fd, int revents, void *cb_data);
126 SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi);
127 SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi);