void InterruptIn::fall(void (*fptr)(void)) {
if (fptr) {
_fall.attach(fptr);
gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
} else {
gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
}
}
void InterruptIn::rise(void (*fptr)(void)) {
if (fptr) {
_rise.attach(fptr);
gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
} else {
gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
}
}
void gpio_ir_recv_handler(uint32_t id, uint32_t event) {
uint32_t current_timestamp;
IRSendRev *pIR;
pIR = (IRSendRev *)id;
gpio_irq_disable((gpio_irq_t *)(pIR->pGpioIrqRecv));
current_timestamp = micros();
switch(pIR->rcvstate) {
case STATE_IDLE:
if ((pIR->recv_wait_int) == IRQ_LOW) {
pIR->rcvstate = STATE_MARK;
pIR->prev_timestamp = current_timestamp;
}
break;
case STATE_MARK:
if ((pIR->recv_wait_int) == IRQ_HIGH) {
// mark transition to space
pIR->recv_buf[(pIR->recv_len)++] = current_timestamp - (pIR->prev_timestamp);
pIR->prev_timestamp = current_timestamp;
pIR->rcvstate = STATE_SPACE;
gtimer_reload((gtimer_t *)(pIR->pTimerRecv), GAP);
gtimer_start((gtimer_t *)(pIR->pTimerRecv));
}
break;
case STATE_SPACE:
if ((pIR->recv_wait_int) == IRQ_LOW) {
// space transition to mark
gtimer_stop((gtimer_t *)(pIR->pTimerRecv));
pIR->recv_buf[(pIR->recv_len)++] = current_timestamp - (pIR->prev_timestamp);
pIR->prev_timestamp = current_timestamp;
pIR->rcvstate = STATE_MARK;
}
break;
case STATE_STOP:
break;
}
if ((pIR->recv_wait_int) == IRQ_LOW )
{
// Change to listen to high level event
(pIR->recv_wait_int) = IRQ_HIGH;
gpio_irq_set((gpio_irq_t *)(pIR->pGpioIrqRecv), (gpio_irq_event)IRQ_HIGH, 1);
gpio_irq_enable((gpio_irq_t *)(pIR->pGpioIrqRecv));
}
else if ((pIR->recv_wait_int) == IRQ_HIGH)
{
// Change to listen to low level event
(pIR->recv_wait_int) = IRQ_LOW;
gpio_irq_set((gpio_irq_t *)(pIR->pGpioIrqRecv), (gpio_irq_event)IRQ_LOW, 1);
gpio_irq_enable((gpio_irq_t *)(pIR->pGpioIrqRecv));
}
}
void InterruptIn::fall(Callback<void()> func) {
core_util_critical_section_enter();
if (func) {
_fall.attach(func);
gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
} else {
_fall.attach(NULL);
gpio_irq_set(&gpio_irq, IRQ_FALL, 0);
}
core_util_critical_section_exit();
}
void InterruptIn::rise(Callback<void()> func) {
core_util_critical_section_enter();
if (func) {
_rise.attach(func);
gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
} else {
_rise.attach(NULL);
gpio_irq_set(&gpio_irq, IRQ_RISE, 0);
}
core_util_critical_section_exit();
}
void DispatcherPrivate::set_receive_input(SYNCHRONIZATION_CHANNEL* channel, PinName pin, PinMode pull, ReceiveChannelMode rcmode)
{
if (channel->data->state->recv.mode != ReceiveChannelModeNone)
gpio_irq_free(&channel->data->state->recv.gpio_irq);
channel->data->state->recv.mode = rcmode;
gpio_init_in(&channel->data->state->recv.gpio, pin);
gpio_irq_init(&channel->data->state->recv.gpio_irq, pin, (&DispatcherPrivate::channel_irq_handler), (uint32_t)channel);
gpio_mode(&channel->data->state->recv.gpio, pull);
gpio_irq_event evt = IRQ_NONE;
switch (rcmode)
{
case ReceiveChannelInterruptRise:
evt = IRQ_RISE;
break;
case ReceiveChannelInterruptFall:
evt = IRQ_FALL;
break;
case ReceiveChannelModeNone:
break;
}
if (evt != IRQ_NONE)
{
gpio_irq_set(&channel->data->state->recv.gpio_irq, evt, 1);
gpio_irq_enable(&channel->data->state->recv.gpio_irq);
}
}
INT32
wmt_plat_bgf_eint_ctrl (
ENUM_PIN_STATE state
)
{
#if CFG_WMT_PS_SUPPORT
switch(state)
{
case PIN_STA_INIT:
/*set to gpio input low, pull down eanble*/
aml_gpio_input_mtk(MTK_BGF_INT);
WMT_DBG_FUNC("WMT-PLAT:BGFInt init(in pd) \n");
break;
case PIN_STA_MUX:
/*set to EINT mode,interrupt input, pull up enable*/
gpio_set_status(MTK_BGF_INT,gpio_status_in);
aml_clr_reg32_mask(P_PAD_PULL_UP_REG4,0x1<<10);//pull up resister
gpio_irq_set(MTK_BGF_INT,GPIO_IRQ(mtk_bgf_irq_no,GPIO_IRQ_LOW));
WMT_DBG_FUNC("WMT-PLAT:BGFInt mux (eint) \n");
break;
case PIN_STA_IN_L:
case PIN_STA_DEINIT:
/*first: disable bgf inq wake up host function*/
do {
int iret;
iret = disable_irq_wake(mtk_bgf_irq_no);
if(iret){
WMT_WARN_FUNC("disable_irq_wake(bgf:%d) fail(%d)\n",mtk_bgf_irq_no,iret);
iret = 0;
}
else{
WMT_INFO_FUNC("disable_irq_wake(bgf:%d)--,ret(%d)\n",mtk_bgf_irq_no,iret);
}
} while (0);
/*second: set to gpio input low, pull down eanble*/
//aml_set_reg32_mask(P_PAD_PULL_UP_REG4,0x1<<10);
aml_gpio_input_mtk(MTK_BGF_INT);
WMT_DBG_FUNC("WMT-PLAT:BGFInt deinit(in pd) \n");
break;
default:
WMT_WARN_FUNC("WMT-PLAT:Warnning, invalid state(%d) on BGF EINT\n", state);
break;
}
#endif
return 0;
}
void config_loguart()
{
/* Log uart RX pin doesn't support gpio interrupt.
* To make log uart wake system, we can parallel log uart RX with another gpio interrupt pin.
*/
gpio_irq_t gpio_rx_wake;
gpio_irq_init(&gpio_rx_wake, LOGUART_RX_WAKE, gpio_loguart_rx_irq_callback, NULL);
gpio_irq_set(&gpio_rx_wake, IRQ_FALL, 1); // Falling Edge Trigger
gpio_irq_enable(&gpio_rx_wake);
}
void uartadapter_gpio_init()
{
gpio_init(&gpio_led, UA_GPIO_IRQ_PIN);
gpio_dir(&gpio_led, PIN_INPUT); // Direction: Output
gpio_mode(&gpio_led, PullNone); // No pull
gpio_irq_init(&gpio_btn, UA_GPIO_IRQ_PIN, uartadapter_gpio_irq, (uint32_t)(&gpio_led));
gpio_irq_set(&gpio_btn, IRQ_FALL, 1); // Falling Edge Trigger
gpio_irq_enable(&gpio_btn);
}
void IRSendRev::Init(int revPin) {
gpio_irq_init((gpio_irq_t *)pGpioIrqRecv, (PinName)(g_APinDescription[revPin].pinname), (gpio_irq_handler)gpio_ir_recv_handler, (uint32_t)this);
gpio_irq_set((gpio_irq_t *)pGpioIrqRecv, (gpio_irq_event)IRQ_LOW, 1);
gpio_irq_enable((gpio_irq_t *)pGpioIrqRecv);
gtimer_init((gtimer_t *)pTimerRecv, TIMER4);
gtimer_start_one_shout((gtimer_t *)pTimerRecv, GAP, (void *)ir_recv_timer_handler, (uint32_t)this);
gtimer_stop((gtimer_t *)pTimerRecv);
Clear();
}
void config_uart()
{
// setup uart
serial_init(&mysobj, UART_TX, UART_RX);
serial_baud(&mysobj, 38400);
serial_format(&mysobj, 8, ParityNone, 1);
serial_irq_handler(&mysobj, uart_irq_callback, (uint32_t)&mysobj);
serial_irq_set(&mysobj, RxIrq, 1);
serial_irq_set(&mysobj, TxIrq, 1);
// config uart rx as gpio wakeup pin
gpio_irq_t gpio_rx_wake;
gpio_irq_init(&gpio_rx_wake, UART_RX, gpio_uart_rx_irq_callback, NULL);
gpio_irq_set(&gpio_rx_wake, IRQ_FALL, 1); // Falling Edge Trigger
gpio_irq_enable(&gpio_rx_wake);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
void main(void)
{
gpio_irq_t gpio_btn;
// Init LED control pin
gpio_init(&gpio_led, GPIO_LED_PIN);
gpio_dir(&gpio_led, PIN_OUTPUT); // Direction: Output
gpio_mode(&gpio_led, PullNone); // No pull
// Initial Push Button pin as interrupt source
gpio_irq_init(&gpio_btn, GPIO_IRQ_PIN, gpio_demo_irq_handler, (uint32_t)(&gpio_led));
gpio_irq_set(&gpio_btn, IRQ_FALL, 1); // Falling Edge Trigger
gpio_irq_enable(&gpio_btn);
led_ctrl = 1;
gpio_write(&gpio_led, led_ctrl);
while(1);
}
void main(void)
{
gpio_t gpio_led;
gpio_irq_t gpio_btn;
// Init LED control pin
gpio_init(&gpio_led, GPIO_LED_PIN);
gpio_dir(&gpio_led, PIN_OUTPUT); // Direction: Output
gpio_mode(&gpio_led, PullNone); // No pull
// Initial Push Button pin as interrupt source
gpio_irq_init(&gpio_btn, GPIO_IRQ_PIN, gpio_demo_irq_handler, (uint32_t)(&gpio_led));
gpio_irq_set(&gpio_btn, IRQ_FALL, 1); // Falling Edge Trigger
gpio_irq_enable(&gpio_btn);
// led on means system is in run mode
gpio_write(&gpio_led, 1);
printf("\r\nPush button at PC_4 to enter deep sleep\r\n");
while(1);
}
void pinMode( uint32_t ulPin, uint32_t ulMode)
{
void *pGpio_t;
if ( ulPin < 0 || ulPin > TOTAL_GPIO_PIN_NUM )
{
return;
}
if ( (g_APinDescription[ulPin].ulPinType == PIO_GPIO || g_APinDescription[ulPin].ulPinType == PIO_GPIO_IRQ)
&& g_APinDescription[ulPin].ulPinMode == ulMode)
{
return;
}
if ( g_APinDescription[ulPin].ulPinType == PIO_PWM ) {
pinRemoveMode(ulPin);
}
if ( g_APinDescription[ulPin].ulPinType == PIO_GPIO &&
(ulMode == INPUT_IRQ_FALL || ulMode == INPUT_IRQ_RISE) ) {
// requst type from gpio_t to gpio_irq_t
pinRemoveMode(ulPin);
}
if ( g_APinDescription[ulPin].ulPinType == PIO_GPIO_IRQ &&
(ulMode == INPUT || ulMode == OUTPUT || ulMode == INPUT_PULLUP || ulMode == INPUT_PULLNONE || ulMode == OUTPUT_OPENDRAIN) ) {
// requst type from gpio_irq_t to gpio_t
pinRemoveMode(ulPin);
}
if ( g_APinDescription[ulPin].ulPinType == NOT_INITIAL ) {
if (ulMode == INPUT_IRQ_FALL || ulMode == INPUT_IRQ_RISE) {
gpio_pin_struct[ulPin] = malloc ( sizeof(gpio_irq_t) );
pGpio_t = gpio_pin_struct[ulPin];
gpio_irq_init( pGpio_t, g_APinDescription[ulPin].pinname, gpioIrqHandler, ulPin);
g_APinDescription[ulPin].ulPinType = PIO_GPIO_IRQ;
} else {
gpio_pin_struct[ulPin] = malloc ( sizeof(gpio_t) );
pGpio_t = gpio_pin_struct[ulPin];
gpio_init( pGpio_t, g_APinDescription[ulPin].pinname );
g_APinDescription[ulPin].ulPinType = PIO_GPIO;
}
g_APinDescription[ulPin].ulPinMode = ulMode;
} else {
pGpio_t = gpio_pin_struct[ulPin];
}
switch ( ulMode )
{
case INPUT:
gpio_dir( (gpio_t *)pGpio_t, PIN_INPUT );
gpio_mode( (gpio_t *)pGpio_t, PullDown );
break;
case INPUT_PULLNONE:
gpio_dir( (gpio_t *)pGpio_t, PIN_INPUT );
gpio_mode( (gpio_t *)pGpio_t, PullNone );
break;
case INPUT_PULLUP:
gpio_dir( (gpio_t *)pGpio_t, PIN_INPUT );
gpio_mode( (gpio_t *)pGpio_t, PullUp );
break;
case OUTPUT:
gpio_dir( (gpio_t *)pGpio_t, PIN_OUTPUT );
gpio_mode( (gpio_t *)pGpio_t, PullNone );
break;
case OUTPUT_OPENDRAIN:
gpio_dir( (gpio_t *)pGpio_t, PIN_OUTPUT );
gpio_mode( (gpio_t *)pGpio_t, OpenDrain );
break;
case INPUT_IRQ_FALL:
gpio_irq_set( (gpio_irq_t *)pGpio_t, IRQ_FALL, 1 );
gpio_irq_enable( (gpio_irq_t *)pGpio_t );
break;
case INPUT_IRQ_RISE:
gpio_irq_set( (gpio_irq_t *)pGpio_t, IRQ_RISE, 1 );
gpio_irq_enable( (gpio_irq_t *)pGpio_t );
break;
case INPUT_IRQ_LOW:
gpio_irq_set( (gpio_irq_t *)pGpio_t, IRQ_LOW, 1 );
gpio_irq_enable( (gpio_irq_t *)pGpio_t );
break;
case INPUT_IRQ_HIGH:
gpio_irq_set( (gpio_irq_t *)pGpio_t, IRQ_HIGH, 1 );
gpio_irq_enable( (gpio_irq_t *)pGpio_t );
break;
default:
break ;
}
}