timezone.c File Reference

set timezone offset in hours and minutes

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include "nvm.h"
#include "gfx_mono_menu.h"
#include "keyboard.h"
#include "timezone.h"

Macros
#define	TZ_HOURS_EEPROM_ADDR   4
#define	TZ_MINUTES_EEPROM_ADDR   5

Functions
	PROGMEM_DECLARE (char const, tz_hours_title[])
	PROGMEM_DECLARE (char const, tz_n12[])
	PROGMEM_DECLARE (char const, tz_n11[])
	PROGMEM_DECLARE (char const, tz_n10[])
	PROGMEM_DECLARE (char const, tz_n09[])
	PROGMEM_DECLARE (char const, tz_n08[])
	PROGMEM_DECLARE (char const, tz_n07[])
	PROGMEM_DECLARE (char const, tz_n06[])
	PROGMEM_DECLARE (char const, tz_n05[])
	PROGMEM_DECLARE (char const, tz_n04[])
	PROGMEM_DECLARE (char const, tz_n03[])
	PROGMEM_DECLARE (char const, tz_n02[])
	PROGMEM_DECLARE (char const, tz_n01[])
	PROGMEM_DECLARE (char const, tz_00[])
	PROGMEM_DECLARE (char const, tz_01[])
	PROGMEM_DECLARE (char const, tz_02[])
	PROGMEM_DECLARE (char const, tz_03[])
	PROGMEM_DECLARE (char const, tz_04[])
	PROGMEM_DECLARE (char const, tz_05[])
	PROGMEM_DECLARE (char const, tz_06[])
	PROGMEM_DECLARE (char const, tz_07[])
	PROGMEM_DECLARE (char const, tz_08[])
	PROGMEM_DECLARE (char const, tz_09[])
	PROGMEM_DECLARE (char const, tz_10[])
	PROGMEM_DECLARE (char const, tz_11[])
	PROGMEM_DECLARE (char const, tz_12[])
	PROGMEM_DECLARE (char const, tz_minutes_title[])
	PROGMEM_DECLARE (char const, tz_min_00[])
	PROGMEM_DECLARE (char const, tz_min_15[])
	PROGMEM_DECLARE (char const, tz_min_30[])
	PROGMEM_DECLARE (char const, tz_min_45[])
int8_t	timezone_get_hours (void)
	get the current timezone offset (hours) More...
int8_t	timezone_get_minutes (void)
	get the current timezone offset (minutes) More...
void	timezone_init (void)
	get and set timezone stored in EEPROM More...
void	timezone_select_application (void)
	Select timezone application. More...
int8_t	tz_index_to_minutes (uint8_t tz_minutes_index)
	Convert from tz_minute_menu index to actual minutes. More...

Variables
static int8_t	tz_hours
struct gfx_mono_menu	tz_hours_menu
PROGMEM_STRING_T	tz_hours_strings []
static int8_t	tz_minutes
struct gfx_mono_menu	tz_minutes_menu
PROGMEM_STRING_T	tz_minutes_strings []

#define TZ_HOURS_EEPROM_ADDR   4

Referenced by timezone_init(), and timezone_select_application().

#define TZ_MINUTES_EEPROM_ADDR   5

Referenced by timezone_init(), and timezone_select_application().

PROGMEM_DECLARE	(	char	const,
		tz_hours_title	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n12	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n11	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n10	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n09	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n08	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n07	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n06	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n05	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n04	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n03	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n02	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_n01	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_00	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_01	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_02	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_03	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_04	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_05	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_06	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_07	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_08	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_09	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_10	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_11	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_12	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_minutes_title	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_min_00	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_min_15	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_min_30	[]
	)

PROGMEM_DECLARE	(	char	const,
		tz_min_45	[]
	)

int8_t timezone_get_hours

(

void

)

get the current timezone offset (hours)

Return values

timezone

offset (hours)

References tz_hours.

Referenced by display_date_time_application(), set_date_application(), and set_time_application().

int8_t timezone_get_minutes

(

void

)

get the current timezone offset (minutes)

Return values

timezone

offset (minutes)

References tz_minutes.

Referenced by display_date_time_application(), set_date_application(), and set_time_application().

void timezone_init

(

void

)

get and set timezone stored in EEPROM

This function will check if a timezone has been stored in EEPROM. If this is the case it will be set, and used by the date&time application. If it is not set, the "select timezone" application will be started to set it

References gfx_mono_menu::current_selection, nvm_eeprom_read_byte(), temp, timezone_select_application(), tz_hours, TZ_HOURS_EEPROM_ADDR, tz_index_to_minutes(), tz_minutes, and TZ_MINUTES_EEPROM_ADDR.

Referenced by main().

void timezone_select_application

(

void

)

Select timezone application.

This application will show a menu with available timezone offset and set the selected timezone to be used by the date&time application. If the timezone setting differs from the already stored setting in EEPROM, the EEPROM value will be updated with the new selection.

References GFX_MONO_MENU_EVENT_EXIT, GFX_MONO_MENU_EVENT_IDLE, gfx_mono_menu_init(), gfx_mono_menu_process_key(), keyboard_get_key_state(), KEYBOARD_RELEASE, keyboard_event::keycode, nvm_eeprom_read_byte(), nvm_eeprom_write_byte(), keyboard_event::type, tz_hours, TZ_HOURS_EEPROM_ADDR, tz_index_to_minutes(), tz_minutes, and TZ_MINUTES_EEPROM_ADDR.

Referenced by date_time_application(), and timezone_init().

int8_t tz_index_to_minutes

(

uint8_t

tz_minutes_index

)

Convert from tz_minute_menu index to actual minutes.

Parameters

tz_minutes_index

index in tz_minutes menu

Return values

actual

number of minutes timezone offset

Referenced by timezone_init(), and timezone_select_application().

int8_t tz_hours

static

Referenced by set_date_application(), set_time_application(), timezone_get_hours(), timezone_init(), and timezone_select_application().

struct gfx_mono_menu tz_hours_menu

Initial value:

= {
    
    tz_hours_title,
    
    tz_hours_strings,
    
    25,
    
    12
}

PROGMEM_STRING_T tz_hours_strings[]

Initial value:

= {
    tz_n12,
    tz_n11,
    tz_n10,
    tz_n09,
    tz_n08,
    tz_n07,
    tz_n06,
    tz_n05,
    tz_n04,
    tz_n03,
    tz_n02,
    tz_n01,
    tz_00,
    tz_01,
    tz_02,
    tz_03,
    tz_04,
    tz_05,
    tz_06,
    tz_07,
    tz_08,
    tz_09,
    tz_10,
    tz_11,
    tz_12
}

int8_t tz_minutes

static

Referenced by set_date_application(), set_time_application(), timezone_get_minutes(), timezone_init(), and timezone_select_application().

struct gfx_mono_menu tz_minutes_menu

Initial value:

= {
    
   tz_minutes_title,
    
    tz_minutes_strings,
    
    4,
    
    0
}

PROGMEM_STRING_T tz_minutes_strings[]

Initial value:

= {
    tz_min_00,
    tz_min_15,
    tz_min_30,
    tz_min_45
}