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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net> | |
5 | * Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com> | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #ifndef LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H | |
22 | #define LIBSIGROK_HARDWARE_YOKOGAWA_DLM_PROTOCOL_H | |
23 | ||
24 | #include <glib.h> | |
25 | #include <stdint.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <math.h> | |
29 | #include "libsigrok.h" | |
30 | #include "libsigrok-internal.h" | |
31 | #include "protocol_wrappers.h" | |
32 | ||
33 | #define LOG_PREFIX "yokogawa-dlm" | |
34 | #define MAX_INSTRUMENT_VERSIONS 4 | |
35 | ||
36 | #define RECEIVE_BUFFER_SIZE (4096) | |
37 | ||
38 | /* See Communication Interface User's Manual on p. 268 (:WAVeform:ALL:SEND?). */ | |
39 | #define DLM_MAX_FRAME_LENGTH (12500) | |
40 | /* See Communication Interface User's Manual on p. 269 (:WAVeform:SEND?). */ | |
41 | #define DLM_DIVISION_FOR_WORD_FORMAT (3200) | |
42 | #define DLM_DIVISION_FOR_BYTE_FORMAT (12.5) | |
43 | ||
44 | ||
45 | enum trigger_slopes { | |
46 | SLOPE_POSITIVE, | |
47 | SLOPE_NEGATIVE | |
48 | }; | |
49 | ||
50 | struct scope_config { | |
51 | const char *model_id[MAX_INSTRUMENT_VERSIONS]; | |
52 | const char *model_name[MAX_INSTRUMENT_VERSIONS]; | |
53 | const uint8_t analog_channels; | |
54 | const uint8_t digital_channels; | |
55 | const uint8_t pods; | |
56 | ||
57 | const char *(*analog_names)[]; | |
58 | const char *(*digital_names)[]; | |
59 | ||
60 | const uint32_t (*devopts)[]; | |
61 | const uint8_t num_devopts; | |
62 | ||
63 | const uint32_t (*analog_devopts)[]; | |
64 | const uint8_t num_analog_devopts; | |
65 | ||
66 | const char *(*coupling_options)[]; | |
67 | const uint8_t num_coupling_options; | |
68 | ||
69 | const char *(*trigger_sources)[]; | |
70 | const uint8_t num_trigger_sources; | |
71 | ||
72 | const char *(*trigger_slopes)[]; | |
73 | ||
74 | const uint64_t (*timebases)[][2]; | |
75 | const uint8_t num_timebases; | |
76 | ||
77 | const uint64_t (*vdivs)[][2]; | |
78 | const uint8_t num_vdivs; | |
79 | ||
80 | const uint8_t num_xdivs; | |
81 | const uint8_t num_ydivs; | |
82 | }; | |
83 | ||
84 | struct analog_channel_state { | |
85 | int coupling; | |
86 | ||
87 | int vdiv; | |
88 | float vertical_offset, waveform_range, waveform_offset; | |
89 | ||
90 | gboolean state; | |
91 | }; | |
92 | ||
93 | struct scope_state { | |
94 | struct analog_channel_state *analog_states; | |
95 | gboolean *digital_states; | |
96 | gboolean *pod_states; | |
97 | ||
98 | int timebase; | |
99 | float horiz_triggerpos; | |
100 | ||
101 | int trigger_source; | |
102 | int trigger_slope; | |
103 | uint64_t sample_rate; | |
104 | uint32_t samples_per_frame; | |
105 | }; | |
106 | ||
107 | /** Private, per-device-instance driver context. */ | |
108 | struct dev_context { | |
109 | void *model_config; | |
110 | void *model_state; | |
111 | ||
112 | struct sr_channel_group **analog_groups; | |
113 | struct sr_channel_group **digital_groups; | |
114 | ||
115 | GSList *enabled_channels; | |
116 | GSList *current_channel; | |
117 | uint64_t num_frames; | |
118 | ||
119 | uint64_t frame_limit; | |
120 | ||
121 | char receive_buffer[RECEIVE_BUFFER_SIZE]; | |
122 | gboolean data_pending; | |
123 | }; | |
124 | ||
125 | /*--- api.c -----------------------------------------------------------------*/ | |
126 | SR_PRIV int dlm_data_request(const struct sr_dev_inst *sdi); | |
127 | ||
128 | /*--- protocol.c ------------------------------------------------------------*/ | |
129 | SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index); | |
130 | SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index); | |
131 | SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data); | |
132 | ||
133 | SR_PRIV void dlm_scope_state_destroy(struct scope_state *state); | |
134 | SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi); | |
135 | SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi); | |
136 | ||
137 | SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi); | |
138 | ||
139 | #endif |