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1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
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_GMC_MH_1X_2X_PROTOCOL_H | |
21 | #define LIBSIGROK_HARDWARE_GMC_MH_1X_2X_PROTOCOL_H | |
22 | ||
23 | #include <stdint.h> | |
24 | #include <glib.h> | |
25 | #include "libsigrok.h" | |
26 | #include "libsigrok-internal.h" | |
27 | ||
28 | /* Message logging helpers with subsystem-specific prefix string. */ | |
29 | #define LOG_PREFIX "gmc-mh-1x-2x: " | |
30 | #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args) | |
31 | #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args) | |
32 | #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args) | |
33 | #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args) | |
34 | #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args) | |
35 | #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args) | |
36 | ||
f5792417 MH |
37 | #define GMC_BUFSIZE 266 |
38 | ||
39 | /** Message ID bits 4, 5 */ | |
fc348b77 UH |
40 | #define MSGID_MASK 0x30 /**< Mask to get message ID bits */ |
41 | #define MSGID_INF 0x00 /**< Start of message with device info */ | |
42 | #define MSGID_D10 0x10 /**< Start of data message, non-displayed intermediate */ | |
43 | #define MSGID_DTA 0x20 /**< Start of data message, displayed, averaged */ | |
44 | #define MSGID_DATA 0x30 /**< Data byte in message */ | |
f5792417 | 45 | |
fc348b77 | 46 | #define MSGC_MASK 0x0f /**< Mask to get message byte contents */ |
f5792417 MH |
47 | |
48 | #define MSGSRC_MASK 0xc0 /**< Mask to get bits related to message source */ | |
49 | ||
50 | #define bc(x) (x & MSGC_MASK) /**< Get contents from a byte */ | |
51 | ||
fc348b77 | 52 | #define MASK_6BITS 0x3f /**< Mask lower six bits. */ |
f5792417 | 53 | |
fc348b77 UH |
54 | /** |
55 | * Internal multimeter model codes. In opposite to the multimeter models from | |
56 | * protocol (see decode_model()), these codes allow working with ranges. | |
f5792417 MH |
57 | */ |
58 | enum model { | |
873e0c12 UH |
59 | METRAHIT_NONE = 0, /**< Value for uninitialized variable */ |
60 | METRAHIT_12S = 12, | |
61 | METRAHIT_13S14A = 13, | |
62 | METRAHIT_14S = 14, | |
63 | METRAHIT_15S = 15, | |
64 | METRAHIT_16S = 16, | |
65 | METRAHIT_16I = 17, | |
66 | METRAHIT_16X = METRAHIT_16I, /**< All Metrahit 16 */ | |
f5792417 | 67 | /* A Metrahit 17 exists, but seems not to have an IR interface. */ |
873e0c12 UH |
68 | METRAHIT_18S = 18, |
69 | METRAHIT_2X = 20, /**< For model type comparisons */ | |
70 | METRAHIT_22SM = 22, | |
71 | METRAHIT_23S = 23, | |
72 | METRAHIT_24S = 24, | |
73 | METRAHIT_25SM = 25, | |
74 | METRAHIT_26S = 26, | |
75 | METRAHIT_28S = 28, | |
76 | METRAHIT_29S = 29, | |
f5792417 MH |
77 | }; |
78 | ||
79 | /** Convert GMC model code in send mode to sigrok-internal one. */ | |
873e0c12 | 80 | SR_PRIV int gmc_decode_model_sm(uint8_t mcode); |
f5792417 | 81 | |
fc348b77 UH |
82 | /** |
83 | * Convert GMC model code in bidirectional mode to sigrok-internal one. | |
f5792417 | 84 | * |
fc348b77 UH |
85 | * @param[in] mcode Model code. |
86 | * | |
87 | * @return Model code. | |
f5792417 | 88 | */ |
873e0c12 | 89 | SR_PRIV int gmc_decode_model_bidi(uint8_t mcode); |
f5792417 | 90 | |
fc348b77 | 91 | /** Get model string from sigrok-internal model code. */ |
873e0c12 | 92 | SR_PRIV const char *gmc_model_str(enum model mcode); |
f5792417 | 93 | |
7b4edcb6 MH |
94 | /** Private, per-device-instance driver context. */ |
95 | struct dev_context { | |
96 | /* Model-specific information */ | |
f5792417 | 97 | enum model model; /**< Model code. */ |
7b4edcb6 MH |
98 | |
99 | /* Acquisition settings */ | |
f5792417 MH |
100 | uint64_t limit_samples; /**< Target number of samples */ |
101 | uint64_t limit_msec; /**< Target sampling time */ | |
102 | ||
103 | /* Opaque pointer passed in by frontend. */ | |
104 | void *cb_data; | |
7b4edcb6 MH |
105 | |
106 | /* Operational state */ | |
f5792417 MH |
107 | gboolean settings_ok; /**< Settings msg received yet. */ |
108 | int msg_type; /**< Message type (MSGID_INF, ...). */ | |
109 | int msg_len; /**< Message lengh (valid when msg, curr. type known).*/ | |
110 | int mq; /**< Measured quantity */ | |
111 | int unit; /**< Measured unit */ | |
112 | uint64_t mqflags; /**< Measured quantity flags */ | |
113 | float value; /**< Measured value */ | |
114 | float scale; /**< Scale for value. */ | |
115 | int8_t scale1000; /**< Additional scale factor 1000^x. */ | |
116 | gboolean vmains_29S; /**< Measured ctmv is V mains (29S only). */ | |
7b4edcb6 MH |
117 | |
118 | /* Temporary state across callbacks */ | |
f5792417 | 119 | uint64_t num_samples; /**< Current #samples for limit_samples */ |
fc348b77 UH |
120 | GTimer *elapsed_msec; /**< Used for sampling with limit_msec */ |
121 | uint8_t buf[GMC_BUFSIZE]; /**< Buffer for read callback */ | |
f5792417 | 122 | int buflen; /**< Data len in buf */ |
7b4edcb6 MH |
123 | }; |
124 | ||
125 | SR_PRIV int gmc_mh_1x_2x_receive_data(int fd, int revents, void *cb_data); | |
126 | ||
127 | #endif |