/*
 * Settings.c
 *
 *  Created on: 29 Sep 2016
 *      Author: Ralim
 *
 *      This file holds the users settings and saves / restores them to the devices flash
 */

#include "Settings.h"
#define FLASH_ADDR 		(0x8000000|0xBC00)/*Flash start OR'ed with the maximum amount of flash - 1024 bytes*/
#define FLASH_LOGOADDR 	(0x8000000|0xB800) /*second last page of flash set aside for logo image*/

systemSettingsType systemSettings;

void saveSettings() {
	//First we erase the flash
	FLASH_Unlock(); //unlock flash writing
	FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);
	while (FLASH_ErasePage(FLASH_ADDR) != FLASH_COMPLETE)
		; //wait for it
	//erased the chunk
	//now we program it
	uint16_t *data = (uint16_t*) &systemSettings;
	for (uint8_t i = 0; i < (sizeof(systemSettings) / 2); i++) {
		FLASH_ProgramHalfWord(FLASH_ADDR + (i * 2), data[i]);
	}
}

void restoreSettings() {
	//We read the flash
	uint16_t *data = (uint16_t*) &systemSettings;
	for (uint8_t i = 0; i < (sizeof(systemSettings) / 2); i++) {
		data[i] = *(uint16_t *) (FLASH_ADDR + (i * 2));
	}
	//if the version is correct were done
	//if not we reset and save
	if (systemSettings.version != SETTINGSVERSION) {
		//probably not setup
		resetSettings();
	}

}
//Lookup function for cutoff setting -> X10 voltage
/*
 * 0=DC
 * 1=3S
 * 2=4S
 * 3=5S
 * 4=6S
 */
uint8_t lookupVoltageLevel(uint8_t level) {
	if (level == 0)
		return 100;	//10V since iron does not function below this
	else
		return (level * 33) + (33 * 2);
}
void resetSettings() {

	systemSettings.SleepTemp = 1500;//Temperature the iron sleeps at - default 150.0 C
	systemSettings.SleepTime = 6;//How many seconds/minutes we wait until going to sleep - default 1 min
	systemSettings.SolderingTemp = 3200;	//Default soldering temp is 320.0 C
	systemSettings.cutoutSetting = 0;			//default to no cut-off voltage
	systemSettings.version = SETTINGSVERSION;//Store the version number to allow for easier upgrades
	systemSettings.displayTempInF = 0;			//default to C
	systemSettings.OrientationMode = 2;				//Default to automatic
	systemSettings.sensitivity = 7;				//Default high sensitivity
	systemSettings.tempCalibration = 239;	//Default to their calibration value
	systemSettings.voltageDiv = 144;			//Default divider from schematic
	systemSettings.ShutdownTime = 30;//How many minutes until the unit turns itself off
	systemSettings.displayUpdateSpeed = 1;		//How fast the LCD updates
	systemSettings.temperatureRounding = 0;	//How the temperature is rounded off
	systemSettings.boostModeEnabled = 0;//Default to safe, with no boost mode
	systemSettings.BoostTemp = 4000;				//default to 400C
	systemSettings.powerDisplay = 0;		//default to power display being off
	systemSettings.autoStart = 0;				//Auto start off for safety
	systemSettings.coolingTempBlink = 0;		//Blink the temperature on the cooling screen when its > 50C
	saveSettings();
}

void showBootLogoIfavailable() {
	//check if the header is there (0xAA,0x55,0xF0,0x0D)
	//If so display logo
	uint16_t temp[98];

	for (uint8_t i = 0; i < (98); i++) {
		temp[i] = *(uint16_t *) (FLASH_LOGOADDR + (i * 2));
	}
	uint8_t temp8[98 * 2];
	for (uint8_t i = 0; i < 98; i++) {
		temp8[i * 2] = temp[i] >> 8;
		temp8[i * 2 + 1] = temp[i] & 0xFF;

	}
	/*char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
	 'C', 'D', 'E', 'F' };

	 OLED_DrawChar(hex[(temp8[0] >> 4) & 0x0F], 0);
	 OLED_DrawChar(hex[(temp8[0] >> 0) & 0x0F], 1);
	 OLED_DrawChar(hex[(temp8[1] >> 4) & 0x0F], 2);
	 OLED_DrawChar(hex[(temp8[1] >> 0) & 0x0F], 3);
	 OLED_DrawChar(hex[(temp8[2] >> 4) & 0x0F], 4);
	 OLED_DrawChar(hex[(temp8[2] >> 0) & 0x0F], 5);
	 OLED_DrawChar(hex[(temp8[3] >> 4) & 0x0F], 6);
	 OLED_DrawChar(hex[(temp8[3] >> 0) & 0x0F], 7);*/
	if (temp8[0] != 0xAA)
		return;
	if (temp8[1] != 0x55)
		return;
	if (temp8[2] != 0xF0)
		return;
	if (temp8[3] != 0x0D)
		return;

	Oled_DrawArea(0, 0, 96, 16, (uint8_t*) (temp8 + 4));
	OLED_Sync();
	delayMs(1000);
}