80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
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#define LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
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#include <stdint.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <math.h>
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#include <glib.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#define LOG_PREFIX "norma-dmm"
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#define NMADMM_BUFSIZE 256
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/** Norma DMM request types (used ones only, the DMMs support about 50). */
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enum {
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NMADMM_REQ_IDN = 0, /**< Request identity */
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NMADMM_REQ_STATUS, /**< Request device status (value + ...) */
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};
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/** Defines requests used to communicate with device. */
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struct nmadmm_req {
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int req_type; /**< Request type. */
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const char *req_str; /**< Request string. */
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};
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/** Strings for requests. */
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extern const struct nmadmm_req nmadmm_requests[];
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/** Private, per-device-instance driver context. */
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struct dev_context {
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/* Model-specific information */
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char *version; /**< Version string */
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int type; /**< DM9x0, e.g. 5 = DM950 */
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/* Acquisition settings */
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uint64_t limit_samples; /**< Target number of samples */
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uint64_t limit_msec; /**< Target sampling time */
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/* Opaque pointer passed in by frontend. */
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void *cb_data;
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/* Operational state */
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int last_req; /**< Last request. */
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gboolean last_req_pending; /**< Last request not answered yet. */
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int lowbatt; /**< Low battery. 1=low, 2=critical. */
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/* Temporary state across callbacks */
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uint64_t num_samples; /**< Current #samples. */
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GTimer *elapsed_msec; /**< Used for limit_msec */
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uint8_t buf[NMADMM_BUFSIZE]; /**< Buffer for read callback */
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int buflen; /**< Data len in buf */
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};
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SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data);
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SR_PRIV int xgittoint(char xgit);
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#endif
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