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OLS driver overhaul
[libsigrok.git] / hardware / openbench-logic-sniffer / ols.h
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1/*
2 * This file is part of the sigrok project.
3 *
4 * Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20
21#ifndef OLS_H_
22#define OLS_H_
23
24#define NUM_PROBES 32
25#define NUM_TRIGGER_STAGES 4
26#define TRIGGER_TYPES "01"
27#define SERIAL_SPEED B115200
28#define CLOCK_RATE SR_MHZ(100)
29#define MIN_NUM_SAMPLES 4
30
31/* Command opcodes */
32#define CMD_RESET 0x00
33#define CMD_RUN 0x01
34#define CMD_ID 0x02
35#define CMD_METADATA 0x04
36#define CMD_SET_FLAGS 0x82
37#define CMD_SET_DIVIDER 0x80
38#define CMD_CAPTURE_SIZE 0x81
39#define CMD_SET_TRIGGER_MASK_0 0xc0
40#define CMD_SET_TRIGGER_MASK_1 0xc4
41#define CMD_SET_TRIGGER_MASK_2 0xc8
42#define CMD_SET_TRIGGER_MASK_3 0xcc
43#define CMD_SET_TRIGGER_VALUE_0 0xc1
44#define CMD_SET_TRIGGER_VALUE_1 0xc5
45#define CMD_SET_TRIGGER_VALUE_2 0xc9
46#define CMD_SET_TRIGGER_VALUE_3 0xcd
47#define CMD_SET_TRIGGER_CONFIG_0 0xc2
48#define CMD_SET_TRIGGER_CONFIG_1 0xc6
49#define CMD_SET_TRIGGER_CONFIG_2 0xca
50#define CMD_SET_TRIGGER_CONFIG_3 0xce
51
52/* Bitmasks for CMD_FLAGS */
53#define FLAG_DEMUX 0x01
54#define FLAG_FILTER 0x02
55#define FLAG_CHANNELGROUP_1 0x04
56#define FLAG_CHANNELGROUP_2 0x08
57#define FLAG_CHANNELGROUP_3 0x10
58#define FLAG_CHANNELGROUP_4 0x20
59#define FLAG_CLOCK_EXTERNAL 0x40
60#define FLAG_CLOCK_INVERTED 0x80
61#define FLAG_RLE 0x0100
62
63
64struct ols_device {
65 uint32_t max_samplerate;
66 uint32_t max_samples;
67 uint32_t protocol_version;
68 int num_probes;
69
70 uint64_t cur_samplerate;
71 uint32_t cur_samplerate_divider;
72 uint64_t limit_samples;
73 /* Current state of the flag register */
74 uint32_t flag_reg;
75
76 /* Pre/post trigger capture ratio, in percentage.
77 * 0 means no pre-trigger data. */
78 int capture_ratio;
79 int trigger_at;
80 uint32_t probe_mask;
81 uint32_t trigger_mask[4];
82 uint32_t trigger_value[4];
83 int num_stages;
84
85 unsigned int num_transfers;
86 int num_bytes;
87 char last_sample[4];
88 unsigned char sample[4];
89 unsigned char tmp_sample[4];
90 unsigned char *raw_sample_buf;
91};
92
93#endif /* OLS_H_ */