2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
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.
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.
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/>.
20 #ifndef LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
21 #define LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
28 #include <libsigrok/libsigrok.h>
29 #include "libsigrok-internal.h"
34 * Norma DM9x0/Siemens B102x DMMs driver.
39 #define LOG_PREFIX "norma-dmm"
41 #define NMADMM_BUFSIZE 256
43 #define NMADMM_TIMEOUT_MS 2000 /**< Request timeout. */
45 /** Norma DMM request types (used ones only, the DMMs support about 50). */
47 NMADMM_REQ_IDN = 0, /**< Request identity */
48 NMADMM_REQ_STATUS, /**< Request device status (value + ...) */
51 /** Defines requests used to communicate with device. */
53 int req_type; /**< Request type. */
54 const char *req_str; /**< Request string. */
57 /** Strings for requests. */
58 extern const struct nmadmm_req nmadmm_requests[];
60 /** Private, per-device-instance driver context. */
62 /* Model-specific information */
63 int type; /**< DM9x0, e.g. 5 = DM950 */
65 /* Acquisition settings */
66 struct sr_sw_limits limits;
68 /* Operational state */
69 int last_req; /**< Last request. */
70 int64_t req_sent_at; /**< Request sent. */
71 gboolean last_req_pending; /**< Last request not answered yet. */
72 int lowbatt; /**< Low battery. 1=low, 2=critical. */
74 /* Temporary state across callbacks */
75 uint8_t buf[NMADMM_BUFSIZE]; /**< Buffer for read callback */
76 int buflen; /**< Data len in buf */
79 SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data);
80 SR_PRIV int xgittoint(char xgit);