projects / libsigrok.git / blame
| Commit | Line | Data |
|---|---|---|
| bfd48770 MH |
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_NORMA_DMM_PROTOCOL_H | |
| 21 | #define LIBSIGROK_HARDWARE_NORMA_DMM_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 "norma-dmm: " | |
| 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 | ||
| f8e76e2e MH |
37 | #define NMADMM_BUFSIZE 256 |
| 38 | ||
| 39 | /** Norma DMM request types (used ones only, the multimeters support about 50). | |
| 40 | */ | |
| 41 | enum nmadmm_req_t { | |
| 42 | NMADMM_REQ_IDN = 0, /**< Request identity */ | |
| 43 | NMADMM_REQ_STATUS, /**< Request device status (value + ...) */ | |
| 44 | }; | |
| 45 | ||
| 46 | /** Defines requests used to communicate with device. */ | |
| 47 | struct nmadmm_req { | |
| 48 | enum nmadmm_req_t req_t; /** Request type. */ | |
| 49 | const char* reqstr; /** Request string */ | |
| 50 | }; | |
| 51 | ||
| 52 | /** Strings for requests. */ | |
| 53 | extern const struct nmadmm_req nmadmm_requests[]; | |
| 54 | ||
| bfd48770 MH |
55 | /** Private, per-device-instance driver context. */ |
| 56 | struct dev_context { | |
| 57 | /* Model-specific information */ | |
| f8e76e2e MH |
58 | char* version; /**< Version string */ |
| 59 | int type; /**< DM9x0, e.g. 5 = DM950 */ | |
| bfd48770 | 60 | /* Acquisition settings */ |
| f8e76e2e MH |
61 | uint64_t limit_samples; /**< Target number of samples */ |
| 62 | uint64_t limit_msec; /**< Target sampling time */ | |
| bfd48770 | 63 | |
| f8e76e2e MH |
64 | /* Opaque pointer passed in by frontend. */ |
| 65 | void *cb_data; | |
| bfd48770 | 66 | |
| f8e76e2e MH |
67 | /* Operational state */ |
| 68 | enum nmadmm_req_t last_req; /**< Last request. */ | |
| 69 | gboolean last_req_pending; /**< Last request not answered yet.*/ | |
| 70 | int lowbatt; /**< Low battery. 1=low, 2=critical.*/ | |
| bfd48770 | 71 | /* Temporary state across callbacks */ |
| f8e76e2e MH |
72 | uint64_t num_samples; /**< Current #samples. */ |
| 73 | GTimer* elapsed_msec; /**< Used for sampling with limit_msec*/ | |
| 74 | unsigned char buf[NMADMM_BUFSIZE]; /**< Buffer for read callback */ | |
| 75 | int buflen; /**< Data len in buf */ | |
| bfd48770 MH |
76 | }; |
| 77 | ||
| 78 | SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data); | |
| f8e76e2e | 79 | SR_PRIV int xgittoint(char xgit); |
| bfd48770 MH |
80 | |
| 81 | #endif |