/*-
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* Copyright (c) 2012-2013 Jan Breuer,
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*
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* All Rights Reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file scpi_types.h
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* @date Thu Nov 15 10:58:45 UTC 2012
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*
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* @brief SCPI data types
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*
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*
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*/
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#ifndef SCPI_TYPES_H
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#define SCPI_TYPES_H
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define FALSE false
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#define TRUE true
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/* basic data types */
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typedef bool bool_t;
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/* typedef enum { FALSE = 0, TRUE } bool_t; */
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/* IEEE 488.2 registers */
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enum _scpi_reg_name_t {
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SCPI_REG_STB = 0, /* Status Byte */
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SCPI_REG_SRE, /* Service Request Enable Register */
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SCPI_REG_ESR, /* Standard Event Status Register (ESR, SESR) */
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SCPI_REG_ESE, /* Event Status Enable Register */
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SCPI_REG_OPER, /* OPERation Status Register */
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SCPI_REG_OPERE, /* OPERation Status Enable Register */
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SCPI_REG_QUES, /* QUEStionable status register */
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SCPI_REG_QUESE, /* QUEStionable status Enable Register */
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/* last definition - number of registers */
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SCPI_REG_COUNT
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};
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typedef enum _scpi_reg_name_t scpi_reg_name_t;
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enum _scpi_ctrl_name_t {
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SCPI_CTRL_SRQ = 1, /* service request */
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SCPI_CTRL_GTL, /* Go to local */
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SCPI_CTRL_SDC, /* Selected device clear */
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SCPI_CTRL_PPC, /* Parallel poll configure */
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SCPI_CTRL_GET, /* Group execute trigger */
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SCPI_CTRL_TCT, /* Take control */
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SCPI_CTRL_LLO, /* Device clear */
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SCPI_CTRL_DCL, /* Local lockout */
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SCPI_CTRL_PPU, /* Parallel poll unconfigure */
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SCPI_CTRL_SPE, /* Serial poll enable */
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SCPI_CTRL_SPD, /* Serial poll disable */
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SCPI_CTRL_MLA, /* My local address */
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SCPI_CTRL_UNL, /* Unlisten */
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SCPI_CTRL_MTA, /* My talk address */
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SCPI_CTRL_UNT, /* Untalk */
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SCPI_CTRL_MSA /* My secondary address */
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};
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typedef enum _scpi_ctrl_name_t scpi_ctrl_name_t;
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typedef uint16_t scpi_reg_val_t;
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/* scpi commands */
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enum _scpi_result_t {
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SCPI_RES_OK = 1,
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SCPI_RES_ERR = -1
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};
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typedef enum _scpi_result_t scpi_result_t;
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typedef struct _scpi_command_t scpi_command_t;
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struct _scpi_param_list_t {
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const scpi_command_t * cmd;
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const char * parameters;
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size_t length;
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};
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#define SCPI_CMD_LIST_END {NULL, NULL, }
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typedef struct _scpi_param_list_t scpi_param_list_t;
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/* scpi interface */
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typedef struct _scpi_t scpi_t;
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typedef struct _scpi_interface_t scpi_interface_t;
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struct _scpi_buffer_t {
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size_t length;
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size_t position;
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char * data;
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};
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typedef struct _scpi_buffer_t scpi_buffer_t;
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typedef size_t(*scpi_write_t)(scpi_t * context, const char * data, size_t len);
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typedef scpi_result_t(*scpi_write_control_t)(scpi_t * context, scpi_ctrl_name_t ctrl, scpi_reg_val_t val);
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typedef int (*scpi_error_callback_t)(scpi_t * context, int_fast16_t error);
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typedef scpi_result_t(*scpi_command_callback_t)(scpi_t *);
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/* scpi error queue */
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typedef void * scpi_error_queue_t;
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/* scpi units */
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enum _scpi_unit_t {
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SCPI_UNIT_NONE,
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SCPI_UNIT_VOLT,
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SCPI_UNIT_AMPER,
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SCPI_UNIT_OHM,
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SCPI_UNIT_HERTZ,
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SCPI_UNIT_CELSIUS,
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SCPI_UNIT_SECONDS
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};
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typedef enum _scpi_unit_t scpi_unit_t;
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struct _scpi_unit_def_t {
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const char * name;
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scpi_unit_t unit;
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double mult;
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};
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#define SCPI_UNITS_LIST_END {NULL, SCPI_UNIT_NONE, 0}
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typedef struct _scpi_unit_def_t scpi_unit_def_t;
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enum _scpi_special_number_t {
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SCPI_NUM_NUMBER,
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SCPI_NUM_MIN,
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SCPI_NUM_MAX,
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SCPI_NUM_DEF,
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SCPI_NUM_UP,
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SCPI_NUM_DOWN,
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SCPI_NUM_NAN,
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SCPI_NUM_INF,
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SCPI_NUM_NINF
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};
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typedef enum _scpi_special_number_t scpi_special_number_t;
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struct _scpi_special_number_def_t {
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const char * name;
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scpi_special_number_t type;
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};
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#define SCPI_SPECIAL_NUMBERS_LIST_END {NULL, SCPI_NUM_NUMBER}
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typedef struct _scpi_special_number_def_t scpi_special_number_def_t;
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struct _scpi_number_t {
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double value;
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scpi_unit_t unit;
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scpi_special_number_t type;
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};
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typedef struct _scpi_number_t scpi_number_t;
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struct _scpi_command_t {
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const char * pattern;
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scpi_command_callback_t callback;
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};
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struct _scpi_interface_t {
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scpi_error_callback_t error;
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scpi_write_t write;
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scpi_write_control_t control;
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scpi_command_callback_t flush;
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scpi_command_callback_t reset;
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scpi_command_callback_t test;
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};
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struct _scpi_t {
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const scpi_command_t * cmdlist;
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scpi_buffer_t buffer;
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scpi_param_list_t paramlist;
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scpi_interface_t * interface;
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int_fast16_t output_count;
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int_fast16_t input_count;
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bool_t cmd_error;
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scpi_error_queue_t error_queue;
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scpi_reg_val_t * registers;
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const scpi_unit_def_t * units;
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const scpi_special_number_def_t * special_numbers;
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void * user_context;
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* SCPI_TYPES_H */
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