[libsigrok.git] / src / hardware / norma-dmm / protocol.h

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H
#define LIBSIGROK_HARDWARE_NORMA_DMM_PROTOCOL_H

#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <glib.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"

#define LOG_PREFIX "norma-dmm"

#define NMADMM_BUFSIZE 256

#define NMADMM_TIMEOUT_MS 2000 /**< Request timeout. */

/** Norma DMM request types (used ones only, the DMMs support about 50). */
enum {
	NMADMM_REQ_IDN = 0,	/**< Request identity */
	NMADMM_REQ_STATUS,	/**< Request device status (value + ...) */
};

/** Defines requests used to communicate with device. */
struct nmadmm_req {
	int req_type;		/**< Request type. */
	const char *req_str;	/**< Request string. */
};

/** Strings for requests. */
extern const struct nmadmm_req nmadmm_requests[];

struct dev_context {
	int type;		/**< DM9x0, e.g. 5 = DM950 */

	struct sr_sw_limits limits;

	int last_req;			/**< Last request. */
	int64_t req_sent_at;		/**< Request sent. */
	gboolean last_req_pending;	/**< Last request not answered yet. */
	int lowbatt;			/**< Low battery. 1=low, 2=critical. */

	uint8_t buf[NMADMM_BUFSIZE];	/**< Buffer for read callback */
	int buflen;			/**< Data len in buf */
};

SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int xgittoint(char xgit);

#endif
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>
e790bd5c UH	24	#include <string.h>
e790bd5c UH	25	#include <ctype.h>
e790bd5c	26	#include <math.h>
bfd48770	27	#include <glib.h>
c1aae900	28	#include <libsigrok/libsigrok.h>
bfd48770 MH	29	#include "libsigrok-internal.h"
bfd48770 MH	30
3544f848	31	#define LOG_PREFIX "norma-dmm"
bfd48770	32
d9251a2c	33	#define NMADMM_BUFSIZE 256
f8e76e2e	34
a4e435eb MH	35	#define NMADMM_TIMEOUT_MS 2000 /*< Request timeout. /
a4e435eb MH	36
e790bd5c UH	37	/** Norma DMM request types (used ones only, the DMMs support about 50). */
e790bd5c UH	38	enum {
f8e76e2e MH	39	NMADMM_REQ_IDN = 0, /*< Request identity /
	40	NMADMM_REQ_STATUS, /*< Request device status (value + ...) /
	41	};
	42
	43	/** Defines requests used to communicate with device. */
	44	struct nmadmm_req {
e790bd5c UH	45	int req_type; /*< Request type. /
e790bd5c UH	46	const char req_str; /< Request string. /
f8e76e2e MH	47	};
	48
	49	/** Strings for requests. */
	50	extern const struct nmadmm_req nmadmm_requests[];
	51
bfd48770	52	struct dev_context {
e790bd5c UH	53	int type; /*< DM9x0, e.g. 5 = DM950 /
e790bd5c UH	54
37dbffd1	55	struct sr_sw_limits limits;
bfd48770	56
e790bd5c	57	int last_req; /*< Last request. /
a4e435eb	58	int64_t req_sent_at; /*< Request sent. /
e790bd5c UH	59	gboolean last_req_pending; /*< Last request not answered yet. /
	60	int lowbatt; /*< Low battery. 1=low, 2=critical. /
	61
e790bd5c	62	uint8_t buf[NMADMM_BUFSIZE]; /*< Buffer for read callback /
f8e76e2e	63	int buflen; /*< Data len in buf /
bfd48770 MH	64	};
	65
	66	SR_PRIV int norma_dmm_receive_data(int fd, int revents, void *cb_data);
f8e76e2e	67	SR_PRIV int xgittoint(char xgit);
bfd48770 MH	68
bfd48770 MH	69	#endif