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f2cd2deb FS |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de> | |
5 | * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se> | |
6 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
7 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
8 | * | |
9 | * This program is free software: you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation, either version 3 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #ifndef LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H | |
24 | #define LIBSIGROK_HARDWARE_KINGST_LA2016_PROTOCOL_H | |
25 | ||
f2cd2deb FS |
26 | #include <glib.h> |
27 | #include <libsigrok/libsigrok.h> | |
a7740b06 | 28 | #include <stdint.h> |
f2cd2deb FS |
29 | |
30 | #define LOG_PREFIX "kingst-la2016" | |
31 | ||
f2cd2deb FS |
32 | #define LA2016_VID 0x77a1 |
33 | #define LA2016_PID 0x01a2 | |
34 | #define USB_INTERFACE 0 | |
40a0b2f4 | 35 | #define USB_CONFIGURATION 1 |
f2cd2deb FS |
36 | |
37 | #define LA2016_BULK_MAX 8388608 | |
38 | ||
e847645b KG |
39 | /* |
40 | * On Windows sigrok uses WinUSB RAW_IO policy which requires the | |
41 | * USB transfer buffer size to be a multiple of the endpoint max packet | |
42 | * size, which is 512 bytes in this case. Also, the maximum allowed size of | |
43 | * the transfer buffer is normally read from WinUSB_GetPipePolicy API but | |
44 | * libusb does not expose this function. Typically, max size is 2MB. | |
45 | */ | |
46 | #define LA2016_EP6_PKTSZ 512 /* endpoint 6 max packet size */ | |
47 | #define LA2016_USB_BUFSZ (256 * 2 * LA2016_EP6_PKTSZ) /* 256KB buffer */ | |
48 | ||
f2cd2deb FS |
49 | #define MAX_RENUM_DELAY_MS 3000 |
50 | #define DEFAULT_TIMEOUT_MS 200 | |
51 | ||
52 | #define LA2016_THR_VOLTAGE_MIN 0.40 | |
53 | #define LA2016_THR_VOLTAGE_MAX 4.00 | |
54 | ||
55 | #define LA2016_NUM_SAMPLES_MIN 256 | |
56 | #define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000) | |
57 | ||
58 | typedef struct pwm_setting_dev { | |
59 | uint32_t period; | |
60 | uint32_t duty; | |
c3d40037 | 61 | } pwm_setting_dev_t; |
f2cd2deb FS |
62 | |
63 | typedef struct trigger_cfg { | |
64 | uint32_t channels; | |
65 | uint32_t enabled; | |
66 | uint32_t level; | |
67 | uint32_t high_or_falling; | |
c3d40037 | 68 | } trigger_cfg_t; |
f2cd2deb FS |
69 | |
70 | typedef struct capture_info { | |
71 | uint32_t n_rep_packets; | |
72 | uint32_t n_rep_packets_before_trigger; | |
73 | uint32_t write_pos; | |
c3d40037 | 74 | } capture_info_t; |
f2cd2deb | 75 | |
c3d40037 HK |
76 | #define NUM_PACKETS_IN_CHUNK 5 |
77 | #define TRANSFER_PACKET_LENGTH 16 | |
f2cd2deb FS |
78 | |
79 | typedef struct pwm_setting { | |
80 | uint8_t enabled; | |
81 | float freq; | |
82 | float duty; | |
f2cd2deb FS |
83 | } pwm_setting_t; |
84 | ||
85 | struct dev_context { | |
86 | struct sr_context *ctx; | |
87 | ||
88 | int64_t fw_updated; | |
89 | pwm_setting_t pwm_setting[2]; | |
90 | unsigned int threshold_voltage_idx; | |
91 | float threshold_voltage; | |
8b172e78 | 92 | uint64_t max_samplerate; |
f2cd2deb FS |
93 | uint64_t cur_samplerate; |
94 | uint64_t limit_samples; | |
95 | uint64_t capture_ratio; | |
96 | uint16_t cur_channels; | |
97 | int num_channels; | |
98 | ||
3f48ab02 FS |
99 | uint32_t bitstream_size; |
100 | ||
f2cd2deb FS |
101 | /* derived stuff */ |
102 | uint64_t pre_trigger_size; | |
103 | ||
104 | /* state after sampling */ | |
105 | int had_triggers_configured; | |
106 | int have_trigger; | |
107 | int transfer_finished; | |
108 | capture_info_t info; | |
109 | unsigned int n_transfer_packets_to_read; /* each with 5 acq packets */ | |
110 | unsigned int n_bytes_to_read; | |
111 | unsigned int n_reps_until_trigger; | |
112 | unsigned int reading_behind_trigger; | |
113 | uint64_t total_samples; | |
114 | uint32_t read_pos; | |
115 | ||
116 | unsigned int convbuffer_size; | |
117 | uint8_t *convbuffer; | |
118 | struct libusb_transfer *transfer; | |
119 | }; | |
120 | ||
121 | SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, libusb_device *dev, uint16_t product_id); | |
122 | SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi); | |
123 | SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi); | |
f2cd2deb | 124 | SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi); |
388438e4 | 125 | SR_PRIV int la2016_receive_data(int fd, int revents, void *cb_data); |
f2cd2deb FS |
126 | SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi); |
127 | SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi); | |
128 | ||
f2cd2deb | 129 | #endif |