[libsigrok.git] / src / hardware / beaglelogic / protocol.h

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2014 Kumar Abhishek <abhishek@theembeddedkitchen.net>
 *
 * 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_BEAGLELOGIC_PROTOCOL_H
#define LIBSIGROK_HARDWARE_BEAGLELOGIC_PROTOCOL_H

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

#define LOG_PREFIX "beaglelogic"

/* Maximum possible input channels */
#define NUM_CHANNELS            14

#define SAMPLEUNIT_TO_BYTES(x)	((x) == 1 ? 1 : 2)

/** Private, per-device-instance driver context. */
struct dev_context {
	/* Model-specific information */
	int max_channels;
	uint32_t fw_ver;

	/* Acquisition settings: see beaglelogic.h */
	uint64_t cur_samplerate;
	uint64_t limit_samples;
	uint32_t sampleunit;
	uint32_t triggerflags;
	uint64_t capture_ratio;

	/* Buffers: size of each buffer block and the total buffer area */
	uint32_t bufunitsize;
	uint32_t buffersize;

	/* Operational state */
	int fd;
	GPollFD pollfd;
	int last_error;

	uint64_t bytes_read;
	uint64_t sent_samples;
	uint32_t offset;
	uint8_t *sample_buf;	/* mmap'd kernel buffer here */

	void *cb_data;

	/* Trigger logic */
	struct soft_trigger_logic *stl;
	gboolean trigger_fired;
};

SR_PRIV int beaglelogic_receive_data(int fd, int revents, void *cb_data);

#endif
Commit	Line	Data
	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2014 Kumar Abhishek <abhishek@theembeddedkitchen.net>
	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_BEAGLELOGIC_PROTOCOL_H
	21	#define LIBSIGROK_HARDWARE_BEAGLELOGIC_PROTOCOL_H
	22
	23	#include <stdint.h>
	24	#include <glib.h>
	25	#include <libsigrok/libsigrok.h>
	26	#include "libsigrok-internal.h"
	27
	28	#define LOG_PREFIX "beaglelogic"
	29
	30	/* Maximum possible input channels */
	31	#define NUM_CHANNELS 14
	32
	33	#define SAMPLEUNIT_TO_BYTES(x) ((x) == 1 ? 1 : 2)
	34
	35	/** Private, per-device-instance driver context. */
	36	struct dev_context {
	37	/* Model-specific information */
	38	int max_channels;
	39	uint32_t fw_ver;
	40
	41	/* Acquisition settings: see beaglelogic.h */
	42	uint64_t cur_samplerate;
	43	uint64_t limit_samples;
	44	uint32_t sampleunit;
	45	uint32_t triggerflags;
	46	uint64_t capture_ratio;
	47
	48	/* Buffers: size of each buffer block and the total buffer area */
	49	uint32_t bufunitsize;
	50	uint32_t buffersize;
	51
	52	/* Operational state */
	53	int fd;
	54	GPollFD pollfd;
	55	int last_error;
	56
	57	uint64_t bytes_read;
	58	uint64_t sent_samples;
	59	uint32_t offset;
	60	uint8_t sample_buf; / mmap'd kernel buffer here */
	61
	62	void *cb_data;
	63
	64	/* Trigger logic */
	65	struct soft_trigger_logic *stl;
	66	gboolean trigger_fired;
	67	};
	68
	69	SR_PRIV int beaglelogic_receive_data(int fd, int revents, void *cb_data);
	70
	71	#endif