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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 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_PIPISTRELLO_OLS_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_PIPISTRELLO_OLS_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <string.h> | |
25 | #include <glib.h> | |
26 | #include <ftdi.h> | |
27 | #include <libsigrok/libsigrok.h> | |
28 | #include "libsigrok-internal.h" | |
29 | ||
30 | #define LOG_PREFIX "p-ols" | |
31 | ||
32 | #define USB_VENDOR_ID 0x0403 | |
33 | #define USB_DEVICE_ID 0x6010 | |
34 | #define USB_VENDOR_NAME "Saanlima" | |
35 | #define USB_IPRODUCT "Pipistrello LX45" | |
36 | ||
37 | #define FTDI_BUF_SIZE (16 * 1024) | |
38 | ||
39 | #define NUM_CHANNELS 32 | |
40 | #define NUM_TRIGGER_STAGES 4 | |
41 | #define CLOCK_RATE SR_MHZ(100) | |
42 | #define MIN_NUM_SAMPLES 4 | |
43 | #define DEFAULT_SAMPLERATE SR_MHZ(100) | |
44 | ||
45 | /* Command opcodes */ | |
46 | #define CMD_RESET 0x00 | |
47 | #define CMD_RUN 0x01 | |
48 | #define CMD_TESTMODE 0x03 | |
49 | #define CMD_ID 0x02 | |
50 | #define CMD_METADATA 0x04 | |
51 | #define CMD_SET_DIVIDER 0x80 | |
52 | #define CMD_SET_FLAGS 0x82 | |
53 | #define CMD_CAPTURE_COUNT 0x83 | |
54 | #define CMD_CAPTURE_DELAY 0x84 | |
55 | #define CMD_SET_TRIGGER_MASK 0xc0 | |
56 | #define CMD_SET_TRIGGER_VALUE 0xc1 | |
57 | #define CMD_SET_TRIGGER_CONFIG 0xc2 | |
58 | #define CMD_SET_TRIGGER_EDGE 0xc3 | |
59 | ||
60 | /* Trigger config */ | |
61 | #define TRIGGER_START (1 << 3) | |
62 | ||
63 | /* Bitmasks for CMD_FLAGS */ | |
64 | /* 12-13 unused, 14-15 RLE mode (we hardcode mode 0). */ | |
65 | #define FLAG_INTERNAL_TEST_MODE (1 << 11) | |
66 | #define FLAG_EXTERNAL_TEST_MODE (1 << 10) | |
67 | #define FLAG_SWAP_CHANNELS (1 << 9) | |
68 | #define FLAG_RLE (1 << 8) | |
69 | #define FLAG_SLOPE_FALLING (1 << 7) | |
70 | #define FLAG_CLOCK_EXTERNAL (1 << 6) | |
71 | #define FLAG_CHANNELGROUP_4 (1 << 5) | |
72 | #define FLAG_CHANNELGROUP_3 (1 << 4) | |
73 | #define FLAG_CHANNELGROUP_2 (1 << 3) | |
74 | #define FLAG_CHANNELGROUP_1 (1 << 2) | |
75 | #define FLAG_FILTER (1 << 1) | |
76 | #define FLAG_DEMUX (1 << 0) | |
77 | ||
78 | /* Private, per-device-instance driver context. */ | |
79 | struct dev_context { | |
80 | /** FTDI device context (used by libftdi). */ | |
81 | struct ftdi_context *ftdic; | |
82 | uint8_t *ftdi_buf; | |
83 | ||
84 | /* Fixed device settings */ | |
85 | int max_channels; | |
86 | uint32_t max_samplebytes; | |
87 | uint32_t max_samplerate; | |
88 | uint32_t protocol_version; | |
89 | ||
90 | /* Acquisition settings */ | |
91 | uint64_t cur_samplerate; | |
92 | uint32_t cur_samplerate_divider; | |
93 | uint32_t max_samples; | |
94 | uint64_t limit_samples; | |
95 | int capture_ratio; | |
96 | int trigger_at; | |
97 | uint32_t channel_mask; | |
98 | uint32_t trigger_mask[NUM_TRIGGER_STAGES]; | |
99 | uint32_t trigger_value[NUM_TRIGGER_STAGES]; | |
100 | uint32_t trigger_edge[NUM_TRIGGER_STAGES]; | |
101 | int num_stages; | |
102 | uint16_t flag_reg; | |
103 | ||
104 | /* Operational states */ | |
105 | unsigned int num_transfers; | |
106 | unsigned int num_samples; | |
107 | int num_bytes; | |
108 | int cnt_bytes; | |
109 | unsigned int cnt_samples; | |
110 | int cnt_samples_rle; | |
111 | ||
112 | /* Temporary variables */ | |
113 | unsigned int rle_count; | |
114 | unsigned char sample[4]; | |
115 | unsigned char tmp_sample[4]; | |
116 | unsigned char tmp_sample2[4]; | |
117 | unsigned char *raw_sample_buf; | |
118 | }; | |
119 | ||
120 | SR_PRIV extern const char *p_ols_channel_names[]; | |
121 | SR_PRIV int write_shortcommand(struct dev_context *devc, uint8_t command); | |
122 | SR_PRIV int write_longcommand(struct dev_context *devc, uint8_t command, uint8_t *data); | |
123 | SR_PRIV int p_ols_open(struct dev_context *devc); | |
124 | SR_PRIV int p_ols_close(struct dev_context *devc); | |
125 | SR_PRIV void pols_channel_mask(const struct sr_dev_inst *sdi); | |
126 | SR_PRIV int pols_convert_trigger(const struct sr_dev_inst *sdi); | |
127 | SR_PRIV struct sr_dev_inst *p_ols_get_metadata(uint8_t *buf, int bytes_read, struct dev_context *devc); | |
128 | SR_PRIV int p_ols_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate); | |
129 | SR_PRIV int p_ols_receive_data(int fd, int revents, void *cb_data); | |
130 | ||
131 | #endif |