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[libsigrok.git] / src / hardware / hantek-4032l / protocol.h
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2016 Andreas Zschunke <andreas.zschunke@gmx.net>
5 * Copyright (C) 2017 Andrej Valek <andy@skyrain.eu>
6 * Copyright (C) 2017 Uwe Hermann <uwe@hermann-uwe.de>
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#ifndef LIBSIGROK_HARDWARE_HANTEK_4032L_PROTOCOL_H
23#define LIBSIGROK_HARDWARE_HANTEK_4032L_PROTOCOL_H
24
25#include <stdint.h>
26#include <glib.h>
27#include <string.h>
28#include <libsigrok/libsigrok.h>
29#include "libsigrok-internal.h"
30
31#define LOG_PREFIX "hantek-4032l"
32
33#define H4032L_USB_VENDOR 0x04b5
34#define H4032L_USB_PRODUCT 0x4032
35
36#define H4032L_DATA_BUFFER_SIZE (2 * 1024)
37#define H4032L_DATA_TRANSFER_MAX_NUM 32
38
39#define H4043L_NUM_SAMPLES_MIN (2 * 1024)
40#define H4032L_NUM_SAMPLES_MAX (64 * 1024 * 1024)
41
42#define H4032L_THR_VOLTAGE_MIN -6.0
43#define H4032L_THR_VOLTAGE_MAX 6.0
44#define H4032L_THR_VOLTAGE_STEP 0.1
45/*
46 * Array index of the default voltage threshold value (2.5V):
47 * (|min| / step) + (default / step) = (|-6.0| / 0.1) + (2.5 / 0.1) = 85
48 */
49#define H4032L_THR_VOLTAGE_DEFAULT 85
50
51#define H4032L_CMD_PKT_MAGIC 0x017f
52#define H4032L_STATUS_PACKET_MAGIC 0x2B1A037F
53#define H4032L_START_PACKET_MAGIC 0x2B1A027F
54#define H4032L_END_PACKET_MAGIC 0x4D3C037F
55
56enum h4032l_clock_edge_type {
57 H4032L_CLOCK_EDGE_TYPE_RISE,
58 H4032L_CLOCK_EDGE_TYPE_FALL,
59 H4032L_CLOCK_EDGE_TYPE_BOTH
60};
61
62enum h4032l_ext_clock_source {
63 H4032L_EXT_CLOCK_SOURCE_CHANNEL_A,
64 H4032L_EXT_CLOCK_SOURCE_CHANNEL_B
65};
66
67enum h4032l_clock_edge_type_channel {
68 H4032L_CLOCK_EDGE_TYPE_RISE_A = 0x24,
69 H4032L_CLOCK_EDGE_TYPE_RISE_B,
70 H4032L_CLOCK_EDGE_TYPE_BOTH_A,
71 H4032L_CLOCK_EDGE_TYPE_BOTH_B,
72 H4032L_CLOCK_EDGE_TYPE_FALL_A,
73 H4032L_CLOCK_EDGE_TYPE_FALL_B
74};
75
76enum h4032l_trigger_edge_type {
77 H4032L_TRIGGER_EDGE_TYPE_RISE,
78 H4032L_TRIGGER_EDGE_TYPE_FALL,
79 H4032L_TRIGGER_EDGE_TYPE_TOGGLE,
80 H4032L_TRIGGER_EDGE_TYPE_DISABLED
81};
82
83enum h4032l_trigger_data_range_type {
84 H4032L_TRIGGER_DATA_RANGE_TYPE_MAX,
85 H4032L_TRIGGER_DATA_RANGE_TYPE_MIN_OR_MAX,
86 H4032L_TRIGGER_DATA_RANGE_TYPE_OUT_OF_RANGE,
87 H4032L_TRIGGER_DATA_RANGE_TYPE_WITHIN_RANGE
88};
89
90enum h4032l_trigger_time_range_type {
91 H4032L_TRIGGER_TIME_RANGE_TYPE_MAX,
92 H4032L_TRIGGER_TIME_RANGE_TYPE_MIN_OR_MAX,
93 H4032L_TRIGGER_TIME_RANGE_TYPE_OUT_OF_RANGE,
94 H4032L_TRIGGER_TIME_RANGE_TYPE_WITHIN_RANGE
95};
96
97enum h4032l_trigger_data_selection {
98 H4032L_TRIGGER_DATA_SELECTION_NEXT,
99 H4032L_TRIGGER_DATA_SELECTION_CURRENT,
100 H4032L_TRIGGER_DATA_SELECTION_PREV
101};
102
103enum h4032l_status {
104 H4032L_STATUS_IDLE,
105 H4032L_STATUS_CMD_CONFIGURE,
106 H4032L_STATUS_CMD_STATUS,
107 H4032L_STATUS_RESPONSE_STATUS,
108 H4032L_STATUS_RESPONSE_STATUS_RETRY,
109 H4032L_STATUS_RESPONSE_STATUS_CONTINUE,
110 H4032L_STATUS_CMD_GET,
111 H4032L_STATUS_FIRST_TRANSFER,
112 H4032L_STATUS_TRANSFER
113};
114
115#pragma pack(push,2)
116struct h4032l_trigger {
117 struct {
118 uint32_t edge_signal:5;
119 uint32_t edge_type:2;
120 uint32_t :1;
121 uint32_t data_range_type:2;
122 uint32_t time_range_type:2;
123 uint32_t data_range_enabled:1;
124 uint32_t time_range_enabled:1;
125 uint32_t :2;
126 uint32_t data_sel:2;
127 uint32_t combined_enabled:1;
128 } flags;
129 uint32_t data_range_min;
130 uint32_t data_range_max;
131 uint32_t time_range_min;
132 uint32_t time_range_max;
133 uint32_t data_range_mask;
134 uint32_t combine_mask;
135 uint32_t combine_data;
136};
137
138struct h4032l_cmd_pkt {
139 uint16_t magic; /* 0x017f */
140 uint8_t sample_rate;
141 struct {
142 uint8_t enable_trigger1:1;
143 uint8_t enable_trigger2:1;
144 uint8_t trigger_and_logic:1;
145 } trig_flags;
146 uint16_t pwm_a;
147 uint16_t pwm_b;
148 uint16_t reserved;
149 uint32_t sample_size; /* Sample depth in bits per channel, 2k-64M, must be multiple of 512. */
150 uint32_t pre_trigger_size; /* Pretrigger buffer depth in bits, must be < sample_size. */
151 struct h4032l_trigger trigger[2];
152 uint16_t cmd;
153};
154#pragma pack(pop)
155
156struct dev_context {
157 enum h4032l_status status;
158 uint64_t sample_rate;
159 unsigned int sent_samples;
160 int submitted_transfers;
161 uint32_t remaining_samples;
162 gboolean acq_aborted;
163 struct h4032l_cmd_pkt cmd_pkt;
164 unsigned int num_transfers;
165 struct libusb_transfer **transfers;
166 uint8_t buf[512];
167 uint64_t capture_ratio;
168 uint32_t trigger_pos;
169 gboolean external_clock;
170 enum h4032l_ext_clock_source external_clock_source;
171 enum h4032l_clock_edge_type clock_edge;
172 double cur_threshold[2];
173 uint32_t fpga_version;
174};
175
176SR_PRIV int h4032l_receive_data(int fd, int revents, void *cb_data);
177SR_PRIV uint16_t h4032l_voltage2pwm(double voltage);
178SR_PRIV void LIBUSB_CALL h4032l_usb_callback(struct libusb_transfer *transfer);
179SR_PRIV void LIBUSB_CALL h4032l_data_transfer_callback(struct libusb_transfer *transfer);
180SR_PRIV int h4032l_start_data_transfers(const struct sr_dev_inst *sdi);
181SR_PRIV int h4032l_start(const struct sr_dev_inst *sdi);
182SR_PRIV int h4032l_stop(struct sr_dev_inst *sdi);
183SR_PRIV int h4032l_dev_open(struct sr_dev_inst *sdi);
184SR_PRIV int h4032l_get_fpga_version(const struct sr_dev_inst *sdi);
185
186#endif