button.c File Reference

AVR Butterfly button handling routines. More...

#include <avr/io.h>
#include <avr/interrupt.h>
#include <inttypes.h>
#include "main.h"
#include "types.h"
#include "button.h"
#include "timer0.h"
#include "vs1001.h"
#include "mmc.h"
#include "uart.h"

Include dependency graph for button.c:

Go to the source code of this file.

Functions
void	ButtonTimer (void)
void	Button_Init (void)
	Button_Init.
void	PinChangeInterrupt (void)
	PinChangeInterrupt.
char	getkey (void)
	getkey
Variables
volatile uint8_t	gPowerSaveTimer
volatile uint16	gPlayTimeSeconds
	# of seconds current file has been playing.
volatile uint8	gMode
	mode of player, idle, playing, off, etc
volatile uint16	gButtonTimeout = 0
volatile uint8	gButtonLongTimeout = 0
volatile uint8	KEY = 0
volatile uint8	KEY_VALID = 0
volatile uint8	KEY_SHIFT = 0
int	long_timeout_count = 0

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Detailed Description

AVR Butterfly button handling routines.

Author:

ATMEL Norway Target(s)...: ATmega169

Compiler....: AVR-GCC 3.3.1; avr-libc 1.0

Revisions...: 1.2

Id:

button.c,v 1.17 2009/01/11 23:39:59 brokentoaster Exp

YYYYMMDD - VER. - COMMENT - SIGN.

20030116 - 1.0 - Created - KS 20031009 port to avr-gcc/avr-libc - M.Thomas 20041105 - 1.2 Altered for Butterfly MP3 use - N.Lott

Definition in file button.c.

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Function Documentation

void Button_Init

(

void

)

Button_Init.

Initializes the five button pin

Definition at line 111 of file button.c.

References PINB_MASK, and PINE_MASK.

Referenced by init_HW().

void ButtonTimer

(

void

)

char getkey

(

void

)

getkey

Get the valid key

The valid key

Definition at line 228 of file button.c.

References FALSE, gButtonTimeout, KEY, KEY_NULL, and KEY_VALID.

Referenced by handle_interface(), and Power_off().

void PinChangeInterrupt

(

void

)

PinChangeInterrupt.

Check status on the joystick

Definition at line 139 of file button.c.

References BUTTON_A, BUTTON_B, BUTTON_C, BUTTON_D, BUTTON_O, FALSE, gButtonTimeout, KEY, KEY_ENTER, KEY_MINUS, KEY_NEXT, KEY_NULL, KEY_PLUS, KEY_PREV, KEY_VALID, MATRIXROWS, PINB_MASK, PINE_MASK, and TRUE.

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Variable Documentation

volatile uint8 gButtonLongTimeout = 0

Definition at line 43 of file button.c.

volatile uint16 gButtonTimeout = 0

Definition at line 42 of file button.c.

Referenced by getkey(), mainTimer(), and PinChangeInterrupt().

volatile uint8 gMode

mode of player, idle, playing, off, etc

Definition at line 75 of file main.c.

Referenced by handle_interface(), handle_mmc(), LEDMatrix_timer(), main(), mainTimer(), play_track_number(), restore_player(), save_player_state(), streaming(), and update_LCD().

volatile uint16 gPlayTimeSeconds

# of seconds current file has been playing.

Definition at line 92 of file main.c.

Referenced by cue_file(), mainTimer(), restore_player(), save_player_state(), and update_LCD().

volatile uint8_t gPowerSaveTimer

Definition at line 55 of file power.h.

Referenced by handle_interface(), handle_mmc(), main(), mainTimer(), and Power_off().

volatile uint8 KEY = 0

Definition at line 47 of file button.c.

Referenced by getkey(), and PinChangeInterrupt().

volatile uint8 KEY_SHIFT = 0

Definition at line 49 of file button.c.

volatile uint8 KEY_VALID = 0

Definition at line 48 of file button.c.

Referenced by getkey(), and PinChangeInterrupt().

int long_timeout_count = 0

Definition at line 56 of file button.c.