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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se> | |
5 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
6 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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_SALEAE_LOGIC16_PROTOCOL_H | |
23 | #define LIBSIGROK_HARDWARE_SALEAE_LOGIC16_PROTOCOL_H | |
24 | ||
25 | #include <stdint.h> | |
26 | #include <glib.h> | |
27 | #include "libsigrok.h" | |
28 | #include "libsigrok-internal.h" | |
29 | ||
30 | #define LOG_PREFIX "saleae-logic16" | |
31 | ||
32 | enum voltage_range { | |
33 | VOLTAGE_RANGE_UNKNOWN, | |
34 | VOLTAGE_RANGE_18_33_V, /* 1.8V and 3.3V logic */ | |
35 | VOLTAGE_RANGE_5_V, /* 5V logic */ | |
36 | }; | |
37 | ||
38 | /** Private, per-device-instance driver context. */ | |
39 | struct dev_context { | |
40 | /* | |
41 | * Since we can't keep track of a Logic16 device after upgrading | |
42 | * the firmware (it renumerates into a different device address | |
43 | * after the upgrade) this is like a global lock. No device will open | |
44 | * until a proper delay after the last device was upgraded. | |
45 | */ | |
46 | int64_t fw_updated; | |
47 | ||
48 | /** The currently configured samplerate of the device. */ | |
49 | uint64_t cur_samplerate; | |
50 | ||
51 | /** Maximum number of samples to capture, if nonzero. */ | |
52 | uint64_t limit_samples; | |
53 | ||
54 | /** The currently configured input voltage of the device. */ | |
55 | enum voltage_range cur_voltage_range; | |
56 | ||
57 | /** The input voltage selected by the user. */ | |
58 | enum voltage_range selected_voltage_range; | |
59 | ||
60 | /** Channels to use. */ | |
61 | uint16_t cur_channels; | |
62 | ||
63 | /* EEPROM data from address 8. */ | |
64 | uint8_t eeprom_data[8]; | |
65 | ||
66 | int64_t num_samples; | |
67 | int submitted_transfers; | |
68 | int empty_transfer_count; | |
69 | int num_channels, cur_channel; | |
70 | uint16_t channel_masks[16]; | |
71 | uint16_t channel_data[16]; | |
72 | uint8_t *convbuffer; | |
73 | size_t convbuffer_size; | |
74 | ||
75 | void *cb_data; | |
76 | unsigned int num_transfers; | |
77 | struct libusb_transfer **transfers; | |
78 | struct sr_context *ctx; | |
79 | }; | |
80 | ||
81 | SR_PRIV int logic16_setup_acquisition(const struct sr_dev_inst *sdi, | |
82 | uint64_t samplerate, uint16_t channels); | |
83 | SR_PRIV int logic16_start_acquisition(const struct sr_dev_inst *sdi); | |
84 | SR_PRIV int logic16_abort_acquisition(const struct sr_dev_inst *sdi); | |
85 | SR_PRIV int logic16_init_device(const struct sr_dev_inst *sdi); | |
86 | SR_PRIV void logic16_receive_transfer(struct libusb_transfer *transfer); | |
87 | ||
88 | #endif |