Issue #28: Start Temp profile parser

stm-firmware/Makefile

@@ -49,7 +49,7 @@ CFILES += settings/settings.c settings/settings-sd-card.c settings/spi-eeprom.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 += hw-version-detect.c
-CFILES += config-parser/config-parser.c
+CFILES += config-parser/config-parser.c config-parser/temp-profile-parser.c
 CFILES += updater/updater.c
 INCLUDEPATH += -Iconfig-parser/include
 

stm-firmware/config-parser/temp-profile-parser.c

@@ -0,0 +1,115 @@
+/* Reflow Oven Controller
+*
+* Copyright (C) 2021  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/>.
+*/
+
+#include <reflow-controller/config-parser/temp-profile-parser.h>
+#include <stdint.h>
+#include <fatfs/ff.h>
+
+struct pl_command_list_map {
+	enum pl_command_type command;
+	const char * const token;
+	uint8_t expected_param_count;
+};
+
+/**
+ * @brief This list stores the command tokens and the expected number of arguments for each command
+ */
+static const struct pl_command_list_map cmd_list_map[_PL_NUM_CMDS] = {
+	{PL_PID_CONF, "pid_conf", 6u},
+	{PL_SET_TEMP, "temp_set", 1u},
+	{PL_WAIT_FOR_TEMP, "wait_temp", 1u},
+	{PL_WAIT_FOR_TIME, "wait_time", 1u},
+	{PL_SET_RAMP, "temp_ramp", 2u},
+	{PL_LOUDSPEAKER_SET, "beep", 1u},
+	{PL_OFF, "temp_off", 0u}
+};
+
+/**
+ * @brief Read a line in the file until a line break is detected or a comment is started.
+ *
+ * In case a comment is detected, it is still read form the file to ensure
+ * the next line is read afterwards
+ *
+ * @param f File to read from
+ * @param buffer Buffer to read in
+ * @param buffsize buffer size
+ * @return 0 if successful, -1 if disk error,
+ */
+static int read_line_until_comment(FIL *f, char *buffer, uint32_t buffsize)
+{
+	char *ptr;
+	uint32_t i;
+
+	if (!f || !buffsize || !buffer)
+		return -1000;
+
+	buffer[0] = 0;
+	/* Read the line from file */
+	ptr = f_gets(buffer, (int)buffsize, f);
+	if (!ptr) {
+		buffer[0] = 0;
+		return -2;
+	}
+
+	/* Go through the line until we encounter a # sign or the end of line*/
+	for (i = 0; i < buffsize; i++) {
+		if (buffer[i] == '\n' || buffer[i] == '#') {
+			buffer[i] = 0;
+			break;
+		} else if (buffer[i] == 0) {
+			break;
+		}
+	}
+
+	return 0;
+}
+
+enum pl_ret_val temp_profile_parse_from_file(const char *filename,
+					     struct pl_command *cmd_list,
+					     uint32_t cmd_list_length,
+					     struct pl_error *error,
+					     uint32_t *cmds_parsed)
+{
+	FIL script_file;
+	FRESULT fres;
+	enum pl_ret_val ret = PL_RET_SUCCESS;
+	char workbuff[256];
+
+	if (!filename || !cmd_list || !cmd_list_length || !cmds_parsed || !error)
+		return PL_RET_PARAM_ERR;
+	error->column = 0;
+	error->line = 0;
+
+	fres = f_open(&script_file, filename, FA_READ);
+	if (fres != FR_OK) {
+		error->errormsg = "Error opening file";
+		ret = PL_RET_DISK_ERR;
+		goto exit;
+	}
+
+	do {
+		/* TODO: Read lines and parse them */
+	} while (!f_eof(&script_file));
+
+
+	(void)f_close(&script_file);
+exit:
+	return ret;
+}

stm-firmware/include/reflow-controller/config-parser/temp-profile-parser.h

@@ -0,0 +1,62 @@
+/* Reflow Oven Controller
+*
+* Copyright (C) 2021  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/>.
+*/
+
+#ifndef __CONFIG_PARSER_TEMP_PROFILE_PARSER_H__
+#define __CONFIG_PARSER_TEMP_PROFILE_PARSER_H__
+
+#include <stdint.h>
+
+enum pl_command_type {
+	PL_PID_CONF = 0,
+	PL_SET_TEMP,
+	PL_SET_RAMP,
+	PL_WAIT_FOR_TEMP,
+	PL_WAIT_FOR_TIME,
+	PL_LOUDSPEAKER_SET,
+	PL_OFF,
+	_PL_NUM_CMDS,
+};
+
+enum pl_ret_val {
+	PL_RET_SUCCESS = 0,
+	PL_RET_DISK_ERR,
+	PL_RET_PARAM_ERR,
+	PL_RET_LIST_FULL,
+	PL_RET_SCRIPT_ERR,
+};
+
+struct pl_error {
+	const char *errormsg;
+	uint32_t line;
+	uint32_t column;
+};
+
+struct pl_command {
+	enum pl_command_type cmd;
+	float params[8];
+};
+
+enum pl_ret_val temp_profile_parse_from_file(const char *filename,
+					     struct pl_command *cmd_list,
+					     uint32_t cmd_list_length,
+					     struct pl_error *error,
+					     uint32_t *cmds_parsed);
+
+#endif /* __CONFIG_PARSER_TEMP_PROFILE_PARSER_H__ */