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Remove the debouncing interrupt

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This commit is contained in:
Eric Tang
2018-07-05 12:33:55 -07:00
parent 9ba09ec8eb
commit 27d12ea31f
7 changed files with 11 additions and 62 deletions
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3
right/src/init_peripherals.c
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@@ -12,7 +12,6 @@
#include "init_peripherals.h"
#include "eeprom.h"
#include "timer.h"
#include "key_debouncer.h"
#include "usb_api.h"
#include "slave_scheduler.h"
#include "bootloader/wormhole.h"
@@ -67,7 +66,6 @@ static void initInterruptPriorities(void)
NVIC_SetPriority(I2C_EEPROM_BUS_IRQ_ID, 0);
NVIC_SetPriority(PIT_TIMER_IRQ_ID, 3);
NVIC_SetPriority(PIT_KEY_SCANNER_IRQ_ID, 4);
NVIC_SetPriority(PIT_KEY_DEBOUNCER_IRQ_ID, 4);
NVIC_SetPriority(I2C_MAIN_BUS_IRQ_ID, 4);
NVIC_SetPriority(USB_IRQ_ID, 4);
}
@@ -159,6 +157,5 @@ void InitPeripherals(void)
TestLed_Init();
LedPwm_Init();
InitI2cWatchdog();
InitKeyDebouncer();
EEPROM_Init();
}

32
right/src/key_debouncer.c
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@@ -1,32 +0,0 @@
#include "key_debouncer.h"
#include "fsl_pit.h"
#include "slot.h"
#include "module.h"
#include "key_states.h"
#include "peripherals/test_led.h"
void PIT_KEY_DEBOUNCER_HANDLER(void)
{
TestLed_Toggle();
for (uint8_t slotId=0; slotId<SLOT_COUNT; slotId++) {
for (uint8_t keyId=0; keyId<MAX_KEY_COUNT_PER_MODULE; keyId++) {
uint8_t *debounceCounter = &KeyStates[slotId][keyId].debounceCounter;
if (*debounceCounter) {
--(*debounceCounter);
}
}
}
PIT_ClearStatusFlags(PIT, PIT_KEY_DEBOUNCER_CHANNEL, PIT_TFLG_TIF_MASK);
}
void InitKeyDebouncer(void)
{
pit_config_t pitConfig;
PIT_GetDefaultConfig(&pitConfig);
PIT_Init(PIT, &pitConfig);
PIT_SetTimerPeriod(PIT, PIT_KEY_DEBOUNCER_CHANNEL, MSEC_TO_COUNT(KEY_DEBOUNCER_INTERVAL_MSEC, PIT_SOURCE_CLOCK));
PIT_EnableInterrupts(PIT, PIT_KEY_DEBOUNCER_CHANNEL, kPIT_TimerInterruptEnable);
EnableIRQ(PIT_KEY_DEBOUNCER_IRQ_ID);
PIT_StartTimer(PIT, PIT_KEY_DEBOUNCER_CHANNEL);
}

18
right/src/key_debouncer.h
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@@ -1,18 +0,0 @@
#ifndef __KEY_DEBOUNCER_H__
#define __KEY_DEBOUNCER_H__
// Includes:
#include "peripherals/pit.h"
#include "fsl_common.h"
// Macros:
#define KEY_DEBOUNCER_INTERVAL_MSEC 1
#define KEY_DEBOUNCER_TIMEOUT_MSEC 100
// Functions:
void InitKeyDebouncer(void);
#endif

3
right/src/key_states.h
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@@ -10,10 +10,11 @@
// Typedefs:
typedef struct {
uint8_t debounceCounter;
uint8_t timestamp;
bool previous : 1;
bool current : 1;
bool suppressed : 1;
bool debouncing : 1;
} key_state_t;
// Variables:

4
right/src/peripherals/pit.h
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@@ -21,8 +21,4 @@
#define PIT_KEY_SCANNER_IRQ_ID PIT2_IRQn
#define PIT_KEY_SCANNER_CHANNEL kPIT_Chnl_2
#define PIT_KEY_DEBOUNCER_HANDLER PIT3_IRQHandler
#define PIT_KEY_DEBOUNCER_IRQ_ID PIT3_IRQn
#define PIT_KEY_DEBOUNCER_CHANNEL kPIT_Chnl_3
#endif

10
right/src/usb_report_updater.c
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@@ -13,7 +13,6 @@
#include "layer.h"
#include "usb_report_updater.h"
#include "timer.h"
#include "key_debouncer.h"
#include "config_parser/parse_keymap.h"
#include "usb_commands/usb_command_get_debug_buffer.h"
#include "arduino_hid/ConsumerAPI.h"
@@ -350,10 +349,15 @@ static void updateActiveUsbReports(void)
key_state_t *keyState = &KeyStates[slotId][keyId];
key_action_t *action = &CurrentKeymap[activeLayer][slotId][keyId];
if (keyState->debounceCounter) {
if (keyState->debouncing) {
if ((uint8_t)(Timer_GetCurrentTime() - keyState->timestamp) > KEY_BOUNCE_TIME_MSEC) {
keyState->debouncing = false;
} else {
keyState->current = keyState->previous;
}
} else if (!keyState->previous && keyState->current) {
keyState->debounceCounter = KEY_DEBOUNCER_TIMEOUT_MSEC + 1;
keyState->timestamp = Timer_GetCurrentTime();
keyState->debouncing = true;
}
if (keyState->current) {

1
shared/key_matrix.h
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@@ -9,6 +9,7 @@
// Macros:
#define MAX_KEYS_IN_MATRIX 100
#define KEY_BOUNCE_TIME_MSEC 100
// Typedefs: