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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 | 26 | #include <libsigrok/libsigrok.h> |
a7740b06 | 27 | #include <stdint.h> |
f2cd2deb | 28 | |
e9430410 | 29 | #define LOG_PREFIX "kingst-la2016" |
f2cd2deb | 30 | |
f2cd2deb FS |
31 | #define LA2016_VID 0x77a1 |
32 | #define LA2016_PID 0x01a2 | |
33 | #define USB_INTERFACE 0 | |
40a0b2f4 | 34 | #define USB_CONFIGURATION 1 |
f2cd2deb | 35 | |
e847645b KG |
36 | /* |
37 | * On Windows sigrok uses WinUSB RAW_IO policy which requires the | |
38 | * USB transfer buffer size to be a multiple of the endpoint max packet | |
96dc954e GS |
39 | * size, which is 512 bytes in this case. Also, the maximum allowed size |
40 | * of the transfer buffer is normally read from WinUSB_GetPipePolicy API | |
41 | * but libusb does not expose this function. Typically, max size is 2MB. | |
e847645b | 42 | */ |
96dc954e GS |
43 | #define LA2016_EP6_PKTSZ 512 /* Max packet size of USB endpoint 6. */ |
44 | #define LA2016_USB_BUFSZ (256 * 2 * LA2016_EP6_PKTSZ) /* 256KiB buffer. */ | |
e847645b | 45 | |
22cb067a | 46 | /* USB communication timeout during regular operation. */ |
e9430410 | 47 | #define DEFAULT_TIMEOUT_MS 200 |
f2cd2deb | 48 | |
22cb067a GS |
49 | /* |
50 | * Check for MCU firmware to take effect after upload. Check the device | |
51 | * presence for a maximum period of time, delay between checks in that | |
52 | * phase. Allow for the device to vanish after upload and before checks, | |
53 | * to not mistake its earlier incarnation for the successful operation | |
54 | * of the most recently loaded firmware. | |
55 | */ | |
56 | #define RENUM_CHECK_PERIOD_MS 3000 | |
57 | #define RENUM_GONE_DELAY_MS 1800 | |
58 | #define RENUM_POLL_INTERVAL_MS 200 | |
59 | ||
e9430410 GS |
60 | #define LA2016_THR_VOLTAGE_MIN 0.40 |
61 | #define LA2016_THR_VOLTAGE_MAX 4.00 | |
f2cd2deb | 62 | |
e9430410 GS |
63 | #define LA2016_NUM_SAMPLES_MIN 256 |
64 | #define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000) | |
f2cd2deb FS |
65 | |
66 | typedef struct pwm_setting_dev { | |
67 | uint32_t period; | |
68 | uint32_t duty; | |
c3d40037 | 69 | } pwm_setting_dev_t; |
f2cd2deb FS |
70 | |
71 | typedef struct trigger_cfg { | |
72 | uint32_t channels; | |
73 | uint32_t enabled; | |
74 | uint32_t level; | |
75 | uint32_t high_or_falling; | |
c3d40037 | 76 | } trigger_cfg_t; |
f2cd2deb FS |
77 | |
78 | typedef struct capture_info { | |
79 | uint32_t n_rep_packets; | |
80 | uint32_t n_rep_packets_before_trigger; | |
81 | uint32_t write_pos; | |
c3d40037 | 82 | } capture_info_t; |
f2cd2deb | 83 | |
e9430410 GS |
84 | #define NUM_PACKETS_IN_CHUNK 5 |
85 | #define TRANSFER_PACKET_LENGTH 16 | |
f2cd2deb FS |
86 | |
87 | typedef struct pwm_setting { | |
88 | uint8_t enabled; | |
89 | float freq; | |
90 | float duty; | |
f2cd2deb FS |
91 | } pwm_setting_t; |
92 | ||
93 | struct dev_context { | |
94 | struct sr_context *ctx; | |
22cb067a | 95 | uint64_t fw_uploaded; |
96dc954e GS |
96 | |
97 | /* User specified parameters. */ | |
f2cd2deb FS |
98 | pwm_setting_t pwm_setting[2]; |
99 | unsigned int threshold_voltage_idx; | |
100 | float threshold_voltage; | |
8b172e78 | 101 | uint64_t max_samplerate; |
f2cd2deb FS |
102 | uint64_t cur_samplerate; |
103 | uint64_t limit_samples; | |
104 | uint64_t capture_ratio; | |
105 | uint16_t cur_channels; | |
106 | int num_channels; | |
107 | ||
3f48ab02 FS |
108 | uint32_t bitstream_size; |
109 | ||
96dc954e | 110 | /* Values derived from user specs. */ |
f2cd2deb FS |
111 | uint64_t pre_trigger_size; |
112 | ||
96dc954e | 113 | /* Internal acquisition and download state. */ |
f2cd2deb FS |
114 | int had_triggers_configured; |
115 | int have_trigger; | |
116 | int transfer_finished; | |
117 | capture_info_t info; | |
118 | unsigned int n_transfer_packets_to_read; /* each with 5 acq packets */ | |
119 | unsigned int n_bytes_to_read; | |
120 | unsigned int n_reps_until_trigger; | |
121 | unsigned int reading_behind_trigger; | |
122 | uint64_t total_samples; | |
123 | uint32_t read_pos; | |
124 | ||
125 | unsigned int convbuffer_size; | |
126 | uint8_t *convbuffer; | |
127 | struct libusb_transfer *transfer; | |
128 | }; | |
129 | ||
1ed93110 GS |
130 | SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, |
131 | libusb_device *dev, uint16_t product_id); | |
f2cd2deb FS |
132 | SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi); |
133 | SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi); | |
f2cd2deb | 134 | SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi); |
388438e4 | 135 | SR_PRIV int la2016_receive_data(int fd, int revents, void *cb_data); |
f2cd2deb FS |
136 | SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi); |
137 | SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi); | |
138 | ||
f2cd2deb | 139 | #endif |