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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 | ||
26 | #include <stdint.h> | |
27 | #include <glib.h> | |
28 | #include <libsigrok/libsigrok.h> | |
29 | #include "libsigrok-internal.h" | |
30 | ||
31 | #define LOG_PREFIX "kingst-la2016" | |
32 | ||
33 | /* device is little endian */ | |
34 | ||
35 | #define LA2016_VID 0x77a1 | |
36 | #define LA2016_PID 0x01a2 | |
37 | #define USB_INTERFACE 0 | |
38 | ||
39 | #define LA2016_BULK_MAX 8388608 | |
40 | ||
41 | #define MAX_RENUM_DELAY_MS 3000 | |
42 | #define DEFAULT_TIMEOUT_MS 200 | |
43 | ||
44 | #define LA2016_THR_VOLTAGE_MIN 0.40 | |
45 | #define LA2016_THR_VOLTAGE_MAX 4.00 | |
46 | ||
47 | #define LA2016_NUM_SAMPLES_MIN 256 | |
48 | #define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000) | |
49 | ||
50 | typedef struct pwm_setting_dev { | |
51 | uint32_t period; | |
52 | uint32_t duty; | |
53 | } __attribute__((__packed__)) pwm_setting_dev_t; | |
54 | ||
55 | typedef struct trigger_cfg { | |
56 | uint32_t channels; | |
57 | uint32_t enabled; | |
58 | uint32_t level; | |
59 | uint32_t high_or_falling; | |
60 | } __attribute__((__packed__)) trigger_cfg_t; | |
61 | ||
62 | typedef struct sample_config { | |
63 | uint32_t sample_depth; | |
64 | uint32_t psa; | |
65 | uint16_t u1; | |
66 | uint32_t u2; | |
67 | uint16_t clock_divisor; | |
68 | } __attribute__((__packed__)) sample_config_t; | |
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; | |
74 | } __attribute__((__packed__)) capture_info_t; | |
75 | ||
76 | typedef struct acq_packet { | |
77 | uint16_t state; | |
78 | uint8_t repetitions; | |
79 | } __attribute__((__packed__)) acq_packet_t; | |
80 | ||
81 | typedef struct transfer_packet { | |
82 | acq_packet_t packet[5]; | |
83 | uint8_t seq; | |
84 | } __attribute__((__packed__)) transfer_packet_t; | |
85 | ||
86 | typedef struct pwm_setting { | |
87 | uint8_t enabled; | |
88 | float freq; | |
89 | float duty; | |
90 | pwm_setting_dev_t dev; | |
91 | } pwm_setting_t; | |
92 | ||
93 | struct dev_context { | |
94 | struct sr_context *ctx; | |
95 | ||
96 | int64_t fw_updated; | |
97 | pwm_setting_t pwm_setting[2]; | |
98 | unsigned int threshold_voltage_idx; | |
99 | float threshold_voltage; | |
100 | uint64_t cur_samplerate; | |
101 | uint64_t limit_samples; | |
102 | uint64_t capture_ratio; | |
103 | uint16_t cur_channels; | |
104 | int num_channels; | |
105 | ||
106 | uint32_t bitstream_size; | |
107 | ||
108 | /* derived stuff */ | |
109 | uint64_t pre_trigger_size; | |
110 | ||
111 | /* state after sampling */ | |
112 | int had_triggers_configured; | |
113 | int have_trigger; | |
114 | int transfer_finished; | |
115 | capture_info_t info; | |
116 | unsigned int n_transfer_packets_to_read; /* each with 5 acq packets */ | |
117 | unsigned int n_bytes_to_read; | |
118 | unsigned int n_reps_until_trigger; | |
119 | unsigned int reading_behind_trigger; | |
120 | uint64_t total_samples; | |
121 | uint32_t read_pos; | |
122 | ||
123 | unsigned int convbuffer_size; | |
124 | uint8_t *convbuffer; | |
125 | struct libusb_transfer *transfer; | |
126 | }; | |
127 | ||
128 | SR_PRIV int la2016_upload_firmware(struct sr_context *sr_ctx, libusb_device *dev, uint16_t product_id); | |
129 | SR_PRIV int la2016_setup_acquisition(const struct sr_dev_inst *sdi); | |
130 | SR_PRIV int la2016_start_acquisition(const struct sr_dev_inst *sdi); | |
131 | SR_PRIV int la2016_stop_acquisition(const struct sr_dev_inst *sdi); | |
132 | SR_PRIV int la2016_abort_acquisition(const struct sr_dev_inst *sdi); | |
133 | SR_PRIV int la2016_has_triggered(const struct sr_dev_inst *sdi); | |
134 | SR_PRIV int la2016_start_retrieval(const struct sr_dev_inst *sdi, libusb_transfer_cb_fn cb); | |
135 | SR_PRIV int la2016_init_device(const struct sr_dev_inst *sdi); | |
136 | SR_PRIV int la2016_deinit_device(const struct sr_dev_inst *sdi); | |
137 | ||
138 | #ifndef WORDS_BIGENDIAN | |
139 | /* this host is big-endian, need to swap from/to device inplace */ | |
140 | #define inplace_WL32(obj) do { uint32_t tmp = obj; WL32(&(obj), tmp); } while (0) | |
141 | #define inplace_RL32(obj) obj = RL32(&(obj)) | |
142 | #define inplace_WL16(obj) do { uint16_t tmp = obj; WL16(&(obj), tmp); } while (0) | |
143 | #define inplace_RL16(obj) obj = RL16(&(obj)) | |
144 | ||
145 | #define pwm_setting_dev_le(obj) do { \ | |
146 | inplace_WL32((obj).period); \ | |
147 | inplace_WL32((obj).duty); \ | |
148 | } while (0) | |
149 | #define trigger_cfg_le(obj) do { \ | |
150 | inplace_WL32((obj).channels); \ | |
151 | inplace_WL32((obj).enabled); \ | |
152 | inplace_WL32((obj).level); \ | |
153 | inplace_WL32((obj).high_or_falling); \ | |
154 | } while (0) | |
155 | #define sample_config_le(obj) do { \ | |
156 | inplace_WL32((obj).sample_depth); \ | |
157 | inplace_WL32((obj).psa); \ | |
158 | inplace_WL16((obj).u1); \ | |
159 | inplace_WL32((obj).u2); \ | |
160 | inplace_WL16((obj).clock_divisor); \ | |
161 | } while (0) | |
162 | ||
163 | #define capture_info_host(obj) do { \ | |
164 | inplace_RL32((obj).n_rep_packets); \ | |
165 | inplace_RL32((obj).n_rep_packets_before_trigger); \ | |
166 | inplace_RL32((obj).write_pos); \ | |
167 | } while (0) | |
168 | #define acq_packet_host(obj) \ | |
169 | inplace_RL16((obj).state) | |
170 | #define transfer_packet_host(obj) do { \ | |
171 | acq_packet_host((obj).packet[0]); \ | |
172 | acq_packet_host((obj).packet[1]); \ | |
173 | acq_packet_host((obj).packet[2]); \ | |
174 | acq_packet_host((obj).packet[3]); \ | |
175 | acq_packet_host((obj).packet[4]); \ | |
176 | } while (0) | |
177 | ||
178 | #else | |
179 | /* this host is little-endian, same as device */ | |
180 | #define pwm_setting_dev_le(obj) (void)obj | |
181 | #define trigger_cfg_le(obj) (void)obj | |
182 | #define sample_config_le(obj) (void)obj | |
183 | ||
184 | #define capture_info_host(obj) (void)obj | |
185 | #define acq_packet_host(obj) (void)obj | |
186 | #define transfer_packet_host(obj) (void)obj | |
187 | #endif | |
188 | ||
189 | #endif |