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ols.h
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1 /*
2  * This file is part of the sigrok project.
3  *
4  * Copyright (C) 2010-2012 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 #ifndef LIBSIGROK_HARDWARE_OPENBENCH_LOGIC_SNIFFER_OLS_H
21 #define LIBSIGROK_HARDWARE_OPENBENCH_LOGIC_SNIFFER_OLS_H
22 
23 #define NUM_PROBES 32
24 #define NUM_TRIGGER_STAGES 4
25 #define TRIGGER_TYPES "01"
26 #define SERIAL_SPEED B115200
27 #define CLOCK_RATE SR_MHZ(100)
28 #define MIN_NUM_SAMPLES 4
29 
30 /* Command opcodes */
31 #define CMD_RESET 0x00
32 #define CMD_RUN 0x01
33 #define CMD_ID 0x02
34 #define CMD_METADATA 0x04
35 #define CMD_SET_FLAGS 0x82
36 #define CMD_SET_DIVIDER 0x80
37 #define CMD_CAPTURE_SIZE 0x81
38 #define CMD_SET_TRIGGER_MASK_0 0xc0
39 #define CMD_SET_TRIGGER_MASK_1 0xc4
40 #define CMD_SET_TRIGGER_MASK_2 0xc8
41 #define CMD_SET_TRIGGER_MASK_3 0xcc
42 #define CMD_SET_TRIGGER_VALUE_0 0xc1
43 #define CMD_SET_TRIGGER_VALUE_1 0xc5
44 #define CMD_SET_TRIGGER_VALUE_2 0xc9
45 #define CMD_SET_TRIGGER_VALUE_3 0xcd
46 #define CMD_SET_TRIGGER_CONFIG_0 0xc2
47 #define CMD_SET_TRIGGER_CONFIG_1 0xc6
48 #define CMD_SET_TRIGGER_CONFIG_2 0xca
49 #define CMD_SET_TRIGGER_CONFIG_3 0xce
50 
51 /* Bitmasks for CMD_FLAGS */
52 #define FLAG_DEMUX 0x01
53 #define FLAG_FILTER 0x02
54 #define FLAG_CHANNELGROUP_1 0x04
55 #define FLAG_CHANNELGROUP_2 0x08
56 #define FLAG_CHANNELGROUP_3 0x10
57 #define FLAG_CHANNELGROUP_4 0x20
58 #define FLAG_CLOCK_EXTERNAL 0x40
59 #define FLAG_CLOCK_INVERTED 0x80
60 #define FLAG_RLE 0x0100
61 
62 /* Private, per-device-instance driver context. */
63 struct context {
64  uint32_t max_samplerate;
65  uint32_t max_samples;
66  uint32_t protocol_version;
67  int num_probes;
68 
69  uint64_t cur_samplerate;
71  uint64_t limit_samples;
72  /* Current state of the flag register */
73  uint32_t flag_reg;
74 
75  /* Pre/post trigger capture ratio, in percentage.
76  * 0 means no pre-trigger data. */
77  int capture_ratio;
79  uint32_t probe_mask;
80  uint32_t trigger_mask[4];
81  uint32_t trigger_value[4];
83 
84  unsigned int num_transfers;
85  unsigned int num_samples;
86  int rle_count;
87  int num_bytes;
88  unsigned char sample[4];
89  unsigned char tmp_sample[4];
90  unsigned char *raw_sample_buf;
91 
92  struct sr_serial_dev_inst *serial;
93 };
94 
95 #endif