X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fhp-3478a%2Fprotocol.h;fp=src%2Fhardware%2Fhp-3478a%2Fprotocol.h;h=baf622bd45fdb58e8854e904786b3b2e71e84253;hb=8cd15dd4ce2fdbefbcc6e64632c8006e5404f253;hp=0000000000000000000000000000000000000000;hpb=1aba65727015e298f213c851dbc8d2d57d27d37b;p=libsigrok.git

diff --git a/src/hardware/hp-3478a/protocol.h b/src/hardware/hp-3478a/protocol.h
new file mode 100644
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+++ b/src/hardware/hp-3478a/protocol.h
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+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2017 Frank Stettner <frank-stettner@gmx.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_HP_3478A_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_HP_3478A_PROTOCOL_H
+
+#include <stdint.h>
+#include <glib.h>
+#include <libsigrok/libsigrok.h>
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "hp-3478a"
+
+#define SB1_FUNCTION_BLOCK	0b11100000
+#define SB1_RANGE_BLOCK		0b00011100
+#define SB1_DIGITS_BLOCK	0b00000011
+
+/* Status Byte 1 (Function) */
+enum sb1_function {
+	FUNCTION_VDC			= 0b00100000,
+	FUNCTION_VAC			= 0b01000000,
+	FUNCTION_2WR			= 0b01100000,
+	FUNCTION_4WR			= 0b10000000,
+	FUNCTION_ADC			= 0b10100000,
+	FUNCTION_AAC			= 0b11000000,
+	FUNCTION_EXR			= 0b11100000,
+};
+
+/* Status Byte 1 (Range V DC) */
+enum sb1_range_vdc {
+	RANGE_VDC_30MV			= 0b00000100,
+	RANGE_VDC_300MV			= 0b00001000,
+	RANGE_VDC_3V			= 0b00001100,
+	RANGE_VDC_30V			= 0b00010000,
+	RANGE_VDC_300V			= 0b00010100,
+};
+
+/* Status Byte 1 (Range V AC) */
+enum sb1_range_vac {
+	RANGE_VAC_300MV			= 0b00000100,
+	RANGE_VAC_3V			= 0b00001000,
+	RANGE_VAC_30V			= 0b00001100,
+	RANGE_VAC_300V			= 0b00010000,
+};
+
+/* Status Byte 1 (Range A) */
+enum sb1_range_a {
+	RANGE_A_300MA			= 0b00000100,
+	RANGE_A_3A			= 0b00001000,
+};
+
+/* Status Byte 1 (Range Ohm) */
+enum sb1_range_ohm {
+	RANGE_OHM_30R			= 0b00000100,
+	RANGE_OHM_300R			= 0b00001000,
+	RANGE_OHM_3KR			= 0b00001100,
+	RANGE_OHM_30KR			= 0b00010000,
+	RANGE_OHM_300KR			= 0b00010100,
+	RANGE_OHM_3MR			= 0b00011000,
+	RANGE_OHM_30MR			= 0b00011100,
+};
+
+/* Status Byte 1 (Digits) */
+enum sb1_digits {
+	DIGITS_5_5			= 0b00000001,
+	DIGITS_4_5			= 0b00000010,
+	DIGITS_3_5			= 0b00000011,
+};
+
+/* Status Byte 2 */
+enum sb2_status {
+	STATUS_INT_TRIGGER		= (1 << 0),
+	STATUS_AUTO_RANGE		= (1 << 1),
+	STATUS_AUTO_ZERO		= (1 << 2),
+	STATUS_50HZ			= (1 << 3),
+	STATUS_FRONT_TERMINAL		= (1 << 4),
+	STATUS_CAL_RAM			= (1 << 5),
+	STATUS_EXT_TRIGGER		= (1 << 6),
+};
+
+/* Status Byte 3 (Serial Poll Mask) */
+enum sb3_srq {
+	SRQ_BUS_AVAIL			= (1 << 0),
+	SRQ_SYNTAX_ERR			= (1 << 2),
+	SRQ_HARDWARE_ERR		= (1 << 3),
+	SRQ_KEYBORD			= (1 << 4),
+	SRQ_CAL_FAILED			= (1 << 5),
+	SRQ_POWER_ON			= (1 << 7),
+};
+
+/* Status Byte 4 (Error) */
+enum sb4_error {
+	ERROR_SELF_TEST			= (1 << 0),
+	ERROR_RAM_SELF_TEST		= (1 << 1),
+	ERROR_ROM_SELF_TEST		= (1 << 2),
+	ERROR_AD_SLOPE			= (1 << 3),
+	ERROR_AD_SELF_TEST		= (1 << 4),
+	ERROR_AD_LINK			= (1 << 5),
+};
+
+/* Channel connector (front terminals or rear terminals. */
+enum terminal_connector {
+	TERMINAL_FRONT,
+	TERMINAL_REAR,
+};
+
+/* Possible triggers */
+enum trigger_state {
+	TRIGGER_UNDEFINED,
+	TRIGGER_EXTERNAL,
+	TRIGGER_INTERNAL,
+};
+
+/* Possible line frequencies */
+enum line_freq {
+	LINE_50HZ,
+	LINE_60HZ,
+};
+
+struct dev_context {
+	struct sr_sw_limits limits;
+
+	double measurement;
+	enum sr_mq measurement_mq;
+	enum sr_mqflag measurement_mq_flags;
+	enum sr_unit measurement_unit;
+	uint8_t enc_digits;
+	uint8_t spec_digits;
+
+	enum terminal_connector terminal;
+	enum trigger_state trigger;
+	enum line_freq line;
+	gboolean auto_zero;
+	gboolean calibration;
+};
+
+struct channel_context {
+	int index;
+	enum terminal_connector location;
+};
+
+SR_PRIV int hp_3478a_set_mq(const struct sr_dev_inst *sdi, enum sr_mq mq,
+				enum sr_mqflag mq_flags);
+SR_PRIV int hp_3478a_get_status_bytes(const struct sr_dev_inst *sdi);
+SR_PRIV int hp_3478a_receive_data(int fd, int revents, void *cb_data);
+
+#endif