Start config parser

This commit is contained in:
Mario Hüttel 2020-10-30 22:21:31 +01:00
parent af9845cbba
commit 14b7bdbf19
3 changed files with 188 additions and 0 deletions

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@ -48,6 +48,8 @@ CFILES += pid-controller.c oven-driver.c
CFILES += settings/settings.c settings/settings-sd-card.c
CFILES += stm-periph/crc-unit.c
CFILES += safety/safety-adc.c safety/safety-controller.c safety/watchdog.c safety/fault.c safety/safety-memory.c safety/stack-check.c
CFILES += config-parser/config-parser.c
INCLUDEPATH += -Iconfig-parser/include
DEBUG_DEFINES = -DDEBUGBUILD
RELEASE_DEFINES =

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@ -0,0 +1,92 @@
/* Reflow Oven Controller
*
* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
*
* This file is part of the Reflow Oven Controller Project.
*
* The reflow oven controller is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The Reflow Oven Control Firmware 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 the reflow oven controller project.
* If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @addtogroup config-parser
* @{
*/
#include <config-parser/config-parser.h>
#include <string.h>
#include <stdio.h>
#define CONFIG_PARSER_MAGIC 0x464a6e2bUL
#define CONFIG_PARSER(p) ((struct config_parser *)(p))
#define config_parser_check_handle(handle) do { if (!(handle) || \
((struct config_parser *)(handle))->magic != CONFIG_PARSER_MAGIC) \
return CONFIG_PARSER_PARAM_ERR; \
} while (0)
config_parser_handle_t config_parser_open_file(struct config_parser *config_parser, bool write, const char *file_name,
char *working_buffer)
{
FRESULT res;
if (!config_parser || !file_name || !working_buffer)
return NULL;
config_parser->magic = CONFIG_PARSER_MAGIC;
config_parser->write = write;
config_parser->buffer = working_buffer;
res = f_open(&config_parser->file, file_name, (write ? FA_CREATE_ALWAYS | FA_WRITE : FA_READ));
if (res != FR_OK)
return NULL;
return (config_parser_handle_t)config_parser;
}
enum config_parser_ret config_parser_get_line(config_parser_handle_t handle, struct config_parser_entry *entry)
{
(void)entry;
config_parser_check_handle(handle);
return CONFIG_PARSER_OK;
}
enum config_parser_ret config_parser_reset_to_start(config_parser_handle_t handle)
{
config_parser_check_handle(handle);
return CONFIG_PARSER_OK;
}
enum config_parser_ret config_parser_write_entry(config_parser_handle_t handle, const struct config_parser_entry *entry)
{
(void)entry;
config_parser_check_handle(handle);
return CONFIG_PARSER_OK;
}
enum config_parser_ret config_parser_close_file(config_parser_handle_t handle)
{
struct config_parser *p;
FRESULT res;
config_parser_check_handle(handle);
p = CONFIG_PARSER(handle);
res = f_close(&p->file);
return (res == FR_OK ? CONFIG_PARSER_OK : CONFIG_PARSER_IOERR);
}
/** @} */

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@ -0,0 +1,94 @@
/* Reflow Oven Controller
*
* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
*
* This file is part of the Reflow Oven Controller Project.
*
* The reflow oven controller is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* The Reflow Oven Control Firmware 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 the reflow oven controller project.
* If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file config-parser.h
* @brief Header file for the key-value pair config parser
* @addtogroup config-parser
* @{
*/
#ifndef _CONFIG_PARSER_H_
#define _CONFIG_PARSER_H_
#include <stdint.h>
#include <stdbool.h>
#include <fatfs/ff.h>
struct config_parser {
uint32_t magic;
bool write;
FIL file;
char *buffer;
};
typedef void * config_parser_handle_t;
enum config_parser_value_type {
CONFIG_PARSER_TYPE_UINT = 0,
CONFIG_PARSER_TYPE_INT,
CONFIG_PARSER_TYPE_STRING,
CONFIG_PARSER_TYPE_FLOAT,
};
enum config_parser_ret {
CONFIG_PARSER_OK = 0,
CONFIG_PARSER_PARAM_ERR,
CONFIG_PARSER_GENERIC_ERR,
CONFIG_PARSER_IOERR,
CONFIG_PARSER_LINE_TOO_LONG,
CONFIG_PARSER_LINE_MALFORM,
CONFIG_PARSER_END_REACHED,
CONFIG_PARSER_WRONG_MODE,
};
struct config_parser_entry {
const char *name;
enum config_parser_value_type type;
union {
uint32_t uint_val;
int32_t int_val;
const char *string_val;
float float_val;
} value;
};
config_parser_handle_t config_parser_open_file(struct config_parser *config_parser, bool write, const char *file_name,
char *working_buffer);
/**
* @brief Parse the current line in the config file.
* @param handle Config parser handle
* @param[out] entry Entry read from config file.
* @warning \p entry is only valid as long as no other function was called on the same \p handle. If necessary, the values
* have to be copied
* @return Config parser error
*/
enum config_parser_ret config_parser_get_line(config_parser_handle_t handle, struct config_parser_entry *entry);
enum config_parser_ret config_parser_reset_to_start(config_parser_handle_t handle);
enum config_parser_ret config_parser_write_entry(config_parser_handle_t handle, const struct config_parser_entry *entry);
enum config_parser_ret config_parser_close_file(config_parser_handle_t handle);
#endif /* _CONFIG_PARSER_H_ */
/** @} */