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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef LIBSIGROK_HARDWARE_CEM_DT_885X_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_CEM_DT_885X_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <glib.h> | |
25 | #include <libsigrok/libsigrok.h> | |
26 | #include "libsigrok-internal.h" | |
27 | ||
28 | #define LOG_PREFIX "cem-dt-885x" | |
29 | ||
30 | /* When retrieving samples from device memory, group this many | |
31 | * together into a sigrok packet. */ | |
32 | #define SAMPLES_PER_PACKET 50 | |
33 | ||
34 | /* Various temporary storage, at least 8 bytes. */ | |
35 | #define BUF_SIZE (SAMPLES_PER_PACKET * 2) | |
36 | ||
37 | /* When in hold mode, force the last measurement out at this interval. | |
38 | * We're using 50ms, which duplicates the non-hold 20Hz update rate. */ | |
39 | #define HOLD_REPEAT_INTERVAL (50 * 1000) | |
40 | ||
41 | enum { | |
42 | TOKEN_WEIGHT_TIME_FAST = 0x02, | |
43 | TOKEN_WEIGHT_TIME_SLOW = 0x03, | |
44 | TOKEN_HOLD_MAX = 0x04, | |
45 | TOKEN_HOLD_MIN = 0x05, | |
46 | TOKEN_TIME = 0x06, | |
47 | TOKEN_MEAS_RANGE_OVER = 0x07, | |
48 | TOKEN_MEAS_RANGE_UNDER = 0x08, | |
49 | TOKEN_STORE_FULL = 0x09, | |
50 | TOKEN_RECORDING_ON = 0x0a, | |
51 | TOKEN_MEAS_WAS_READOUT = 0x0b, | |
52 | TOKEN_MEAS_WAS_BARGRAPH = 0x0c, | |
53 | TOKEN_MEASUREMENT = 0xd, | |
54 | TOKEN_HOLD_NONE = 0x0e, | |
55 | TOKEN_BATTERY_LOW = 0x0f, | |
56 | TOKEN_MEAS_RANGE_OK = 0x11, | |
57 | TOKEN_STORE_OK = 0x19, | |
58 | TOKEN_RECORDING_OFF = 0x1a, | |
59 | TOKEN_WEIGHT_FREQ_A = 0x1b, | |
60 | TOKEN_WEIGHT_FREQ_C = 0x1c, | |
61 | TOKEN_BATTERY_OK = 0x1f, | |
62 | TOKEN_MEAS_RANGE_30_80 = 0x30, | |
63 | TOKEN_MEAS_RANGE_30_130 = 0x40, | |
64 | TOKEN_MEAS_RANGE_50_100 = 0x4b, | |
65 | TOKEN_MEAS_RANGE_80_130 = 0x4c, | |
66 | }; | |
67 | ||
68 | enum { | |
69 | CMD_TOGGLE_RECORDING = 0x55, | |
70 | CMD_TOGGLE_WEIGHT_FREQ = 0x99, | |
71 | CMD_TOGGLE_WEIGHT_TIME = 0x77, | |
72 | CMD_TOGGLE_HOLD_MAX_MIN = 0x11, | |
73 | CMD_TOGGLE_MEAS_RANGE = 0x88, | |
74 | CMD_TOGGLE_POWER_OFF = 0x33, | |
75 | CMD_TRANSFER_MEMORY = 0xac, | |
76 | }; | |
77 | ||
78 | enum { | |
79 | RECORD_DBA = 0xaa, | |
80 | RECORD_DBC = 0xcc, | |
81 | RECORD_DATA = 0xac, | |
82 | RECORD_END = 0xdd, | |
83 | }; | |
84 | ||
85 | enum { | |
86 | DATA_SOURCE_LIVE, | |
87 | DATA_SOURCE_MEMORY, | |
88 | }; | |
89 | ||
90 | /** Private, per-device-instance driver context. */ | |
91 | struct dev_context { | |
92 | /* Device state */ | |
93 | uint64_t cur_mqflags; | |
94 | int recording; | |
95 | int cur_meas_range; | |
96 | int cur_data_source; | |
97 | ||
98 | /* Acquisition settings */ | |
99 | uint64_t limit_samples; | |
100 | ||
101 | /* Operational state */ | |
102 | int state; | |
103 | uint64_t num_samples; | |
104 | gboolean enable_data_source_memory; | |
105 | ||
106 | /* Temporary state across callbacks */ | |
107 | void *cb_data; | |
108 | unsigned char cmd; | |
109 | unsigned char token; | |
110 | int buf_len; | |
111 | unsigned char buf[BUF_SIZE]; | |
112 | float last_spl; | |
113 | gint64 hold_last_sent; | |
114 | }; | |
115 | ||
116 | /* Parser state machine. */ | |
117 | enum { | |
118 | ST_INIT, | |
119 | ST_GET_TOKEN, | |
120 | ST_GET_DATA, | |
121 | ST_GET_LOG_HEADER, | |
122 | ST_GET_LOG_RECORD_META, | |
123 | ST_GET_LOG_RECORD_DATA, | |
124 | }; | |
125 | ||
126 | SR_PRIV int cem_dt_885x_receive_data(int fd, int revents, void *cb_data); | |
127 | SR_PRIV int cem_dt_885x_recording_set(const struct sr_dev_inst *sdi, gboolean start); | |
128 | SR_PRIV gboolean cem_dt_885x_recording_get(const struct sr_dev_inst *sdi, | |
129 | int *state); | |
130 | SR_PRIV int cem_dt_885x_weight_freq_get(const struct sr_dev_inst *sdi); | |
131 | SR_PRIV int cem_dt_885x_weight_freq_set(const struct sr_dev_inst *sdi, int freqw); | |
132 | SR_PRIV int cem_dt_885x_weight_time_get(const struct sr_dev_inst *sdi); | |
133 | SR_PRIV int cem_dt_885x_weight_time_set(const struct sr_dev_inst *sdi, int timew); | |
134 | SR_PRIV int cem_dt_885x_holdmode_get(const struct sr_dev_inst *sdi, | |
135 | gboolean *holdmode); | |
136 | SR_PRIV int cem_dt_885x_holdmode_set(const struct sr_dev_inst *sdi, int holdmode); | |
137 | SR_PRIV int cem_dt_885x_meas_range_get(const struct sr_dev_inst *sdi, | |
138 | uint64_t *low, uint64_t *high); | |
139 | SR_PRIV int cem_dt_885x_meas_range_set(const struct sr_dev_inst *sdi, | |
140 | uint64_t low, uint64_t high); | |
141 | SR_PRIV int cem_dt_885x_power_off(const struct sr_dev_inst *sdi); | |
142 | ||
143 | #endif |