#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "inc/hw_ints.h"
#include "inc/hw_gpio.h"
#include "inc/hw_memmap.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/timer.h"
#include "driverlib/adc.h"
#include "libos/os.h"
#include "libos/jitter.h"
#include "libheart/heartbeat.h"
#include "libbutton/button.h"
#include "libtimer/timer.h"
#include "libhw/hardware.h"
#include "libos/semaphore.h"
#include "libadc/adc.h"
#include "libuart/uart.h"
#include "libshell/shell.h"

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Macros
#define	HEARTBEAT_MODAL

Functions
void	button_debounce_end (notification button_notification)

void	button_debounce_start (notification button_notification)

void	led_blink_red ()

void	led_blink_green ()

void	led_blink_blue ()

void	postpone_suicide ()

int	main ()

Variables
volatile uint32_t	button_left_pressed

volatile uint32_t	button_right_pressed

volatile uint32_t	button_debounced_mailbox

volatile uint32_t	button_debounced_wtf

volatile semaphore_t	button_debounced_new_data

uint32_t	red_work = 0

uint32_t	blue_work = 0

uint32_t	green_work = 0

Macro Definition Documentation

#define HEARTBEAT_MODAL

Definition at line 26 of file test-debounce.c.

Function Documentation

void button_debounce_end ( notification button_notification )

Definition at line 52 of file test-debounce.c.

References button_debounced_mailbox, button_debounced_new_data, BUTTONS_BOTH, GPIO_PORTF_BASE, GPIOPinRead(), and sem_post.

Referenced by button_debounce_start().

                                                            {
 
     button_debounced_mailbox = GPIOPinRead(GPIO_PORTF_BASE, BUTTONS_BOTH);
     sem_post(button_debounced_new_data);
 }

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void button_debounce_start ( notification button_notification )

Definition at line 59 of file test-debounce.c.

References button_debounce_end(), button_debounced_wtf, BUTTONS_BOTH, GPIO_PORTF_BASE, GPIOPinRead(), hw_channel_init(), hw_subscribe_single_shot, HW_TIMER, Hz, INT_TIMER0A, TIMER0_BASE, TIMER_CFG_ONE_SHOT, and timer_metadata_init.

Referenced by main().

                                                              {
 
     button_debounced_wtf = GPIOPinRead(GPIO_PORTF_BASE, BUTTONS_BOTH);
     timer_metadata_init(TIMER0_BASE, 10 Hz, INT_TIMER0A, TIMER_CFG_ONE_SHOT);
     hw_channel_init(HW_TIMER, timer_metadata);
     hw_subscribe_single_shot(HW_TIMER, timer_metadata,
                              button_debounce_end);
 }

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void led_blink_blue ( )

Definition at line 86 of file test-debounce.c.

References blue_work, GPIO_PIN_2, GPIO_PORTF_BASE, GPIOPinRead(), and GPIOPinWrite().

Referenced by postpone_suicide().

                       {
     /* while (1) { */
         ++blue_work;
         GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2,
                      GPIO_PIN_2 ^ GPIOPinRead(GPIO_PORTF_BASE, GPIO_PIN_2));
         /* os_surrender_context(); */
     /* } */
 }

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void led_blink_green ( )

Definition at line 77 of file test-debounce.c.

References GPIO_PIN_3, GPIO_PORTF_BASE, GPIOPinRead(), GPIOPinWrite(), and green_work.

Referenced by postpone_suicide().

                        {
     /* while (1) { */
         ++green_work;
         GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_3,
                      GPIO_PIN_3 ^ GPIOPinRead(GPIO_PORTF_BASE, GPIO_PIN_3));
         /* os_surrender_context(); */
     /* } */
 }

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void led_blink_red ( )

Definition at line 68 of file test-debounce.c.

References GPIO_PIN_1, GPIO_PORTF_BASE, GPIOPinRead(), GPIOPinWrite(), os_surrender_context, and red_work.

                      {
     while (1) {
         ++red_work;
         GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1,
                      GPIO_PIN_1 ^ GPIOPinRead(GPIO_PORTF_BASE, GPIO_PIN_1));
         os_surrender_context();
     }
 }

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int main ( void )

Definition at line 112 of file test-debounce.c.

References button_debounce_start(), button_debounced_mailbox, button_debounced_new_data, button_left_pressed, button_metadata_init, button_right_pressed, BUTTONS_BOTH, DL_SOFT, GPIO_BOTH_EDGES, GPIO_PIN_1, GPIO_PIN_2, GPIO_PIN_3, GPIO_PORTF_BASE, heart_init(), HW_BUTTON, hw_driver_init(), hw_init, hw_subscribe, HW_TIMER, Hz, INT_TIMER0A, IntMasterDisable(), IntMasterEnable(), os_launch(), os_threading_init(), postpone_suicide(), schedule(), sem_init, SYSCTL_OSC_MAIN, SYSCTL_SYSDIV_1, SYSCTL_USE_OSC, SYSCTL_XTAL_16MHZ, SysCtlClockSet(), TIMER0_BASE, TIMER_CFG_ONE_SHOT, and timer_metadata_init.

            {
 
     SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
                    SYSCTL_XTAL_16MHZ);
 
     IntMasterDisable();
 
     /* begin heartbeat init */
     heart_init();
     heart_init_(GPIO_PORTF_BASE, GPIO_PIN_1);
     heart_init_(GPIO_PORTF_BASE, GPIO_PIN_2);
     heart_init_(GPIO_PORTF_BASE, GPIO_PIN_3);
     /* end heartbeat init */
 
     /* begin timer init */
     timer_metadata_init(TIMER0_BASE, 10 Hz, INT_TIMER0A, TIMER_CFG_ONE_SHOT);
     hw_driver_init(HW_TIMER, timer_metadata);
     /* end timer init */
 
     /* button init */
     button_left_pressed = 0;
     button_right_pressed = 0;
     button_debounced_mailbox = 0xff;
     sem_init(button_debounced_new_data);
 
     button_metadata_init(GPIO_PORTF_BASE, BUTTONS_BOTH, GPIO_BOTH_EDGES);
 
     hw_init(HW_BUTTON, button_metadata);
     hw_subscribe(HW_BUTTON, button_metadata, button_debounce_start);
     /* end button init */
 
     os_threading_init();
     schedule(postpone_suicide, 100 Hz, DL_SOFT);
 
     IntMasterEnable();
     os_launch();
 
     while (1) {}
 }

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void postpone_suicide ( )

Definition at line 95 of file test-debounce.c.

References button_debounced_mailbox, button_debounced_new_data, BUTTON_LEFT, button_left_pressed, BUTTON_RIGHT, button_right_pressed, led_blink_blue(), led_blink_green(), sem_guard, and sem_take.

Referenced by main().

                         {
 
     while (1) {
         sem_guard(button_debounced_new_data) {
             sem_take(button_debounced_new_data);
             if (~button_debounced_mailbox & BUTTON_LEFT) {
                 led_blink_blue();
                 ++button_left_pressed;
             }
             if (~button_debounced_mailbox & BUTTON_RIGHT) {
                 led_blink_green();
                 ++button_right_pressed;
             }
         }
     }
 }