/**
* \brief Process an interrupt request on the given PIO controller.
*
* \param p_pio PIO controller base address.
* \param ul_id PIO controller ID.
*/
void pio_handler_process(Pio *p_pio, uint32_t ul_id)
{
uint32_t status;
uint32_t i;
/* Read PIO controller status */
status = pio_get_interrupt_status(p_pio);
status &= pio_get_interrupt_mask(p_pio);
/* Check pending events */
if (status != 0) {
/* Find triggering source */
i = 0;
while (status != 0) {
/* Source is configured on the same controller */
if (gs_interrupt_sources[i].id == ul_id) {
/* Source has PIOs whose statuses have changed */
if ((status & gs_interrupt_sources[i].mask) != 0) {
gs_interrupt_sources[i].handler(gs_interrupt_sources[i].id,
gs_interrupt_sources[i].mask);
status &= ~(gs_interrupt_sources[i].mask);
}
}
i++;
}
}
}
void gpio_irq(Pio *p_pio, uint32_t ul_id)
{
uint32_t status;
uint32_t i;
/* Read PIO controller status */
status = pio_get_interrupt_status(p_pio);
status &= pio_get_interrupt_mask(p_pio);
/* Check pending events */
if (status != 0) {
/* Find triggering source */
i = 0;
while (status != 0) {
/* Source is configured on the same controller */
if (gpio_irq_data[i].id == ul_id) {
/* Source has PIOs whose statuses have changed */
if ((status & gpio_irq_data[i].mask) != 0) {
void * arg = gpio_irq_data[i].arg; /* avoids undefined order of access to volatiles */
gpio_irq_data[i].handler(arg);
status &= ~(gpio_irq_data[i].mask);
}
}
i++;
if (i >= MAX_INTERRUPT_SOURCES) {
break;
}
}
}
}
/**
* \brief Disables interrupt pin change
*/
static void ui_disable_asynchronous_interrupt(void)
{
/* Disable interrupt for button pin */
pio_disable_pin_interrupt(GPIO_PUSH_BUTTON_2);
pio_get_interrupt_status(PIOB);
/* Enable fastwakeup for button pin */
pmc_clr_fast_startup_input(PMC_FSMR_FSTT14);
}
/**
* \brief Disables interrupt pin change
*/
static void ui_disable_asynchronous_interrupt(void)
{
/* Disable interrupt for button pin */
pio_disable_pin_interrupt(RESUME_PIN);
pio_get_interrupt_status(RESUME_PIO);
/* Enable fast wakeup for button pin */
pmc_clr_fast_startup_input(RESUME_PMC_FSTT);
}
//done
void PIOA_Handler (void) {
ButtonStatus = pio_get_interrupt_status(PIOA);
ButtonStatus &= pio_get_interrupt_mask(PIOA);
if(ButtonStatus&Push1 || ButtonStatus&Push2) xSemaphoreGiveFromISR(CMDFRAMEsem,NULL);
else {
sendDebugString("UpdateSemCalled\n");
xSemaphoreGiveFromISR(PIOAsem,NULL);
}
}
/**
* \brief Initialize PIO interrupt management logic.
*
* \note The desired priority of PIO must be provided.
* Calling this function multiple times result in the reset of currently
* configured interrupt on the provided PIO.
*
* \param p_pio PIO controller base address.
* \param ul_irqn NVIC line number.
* \param ul_priority PIO controller interrupts priority.
*/
void pio_handler_set_priority(Pio *p_pio, IRQn_Type ul_irqn, uint32_t ul_priority)
{
/* Configure PIO interrupt sources */
pio_get_interrupt_status(p_pio);
pio_disable_interrupt(p_pio, 0xFFFFFFFF);
NVIC_DisableIRQ(ul_irqn);
NVIC_ClearPendingIRQ(ul_irqn);
NVIC_SetPriority(ul_irqn, ul_priority);
NVIC_EnableIRQ(ul_irqn);
}
/*
* @fn nm_bsp_interrupt_ctrl
* @brief Enable/Disable interrupts
* @param[IN] u8Enable
* '0' disable interrupts. '1' enable interrupts
*/
void nm_bsp_interrupt_ctrl(uint8 u8Enable)
{
if (u8Enable) {
pio_get_interrupt_status(CONF_WINC_SPI_INT_PIO);
pio_enable_interrupt(CONF_WINC_SPI_INT_PIO, CONF_WINC_SPI_INT_MASK);
}
else {
pio_disable_interrupt(CONF_WINC_SPI_INT_PIO, CONF_WINC_SPI_INT_MASK);
}
}
/**
* \brief Initialize PIO interrupt management logic.
*
* \param p_pio PIO controller base address.
* \param ul_irqn NVIC line number.
* \param ul_priority PIO controller interrupts priority.
*/
void pio_handler_set_priority(Pio *p_pio, IRQn_Type ul_irqn, uint32_t ul_priority)
{
uint32_t bitmask = 0;
bitmask = pio_get_interrupt_mask(p_pio);
pio_disable_interrupt(p_pio, 0xFFFFFFFF);
pio_get_interrupt_status(p_pio);
NVIC_DisableIRQ(ul_irqn);
NVIC_ClearPendingIRQ(ul_irqn);
NVIC_SetPriority(ul_irqn, ul_priority);
NVIC_EnableIRQ(ul_irqn);
pio_enable_interrupt(p_pio, bitmask);
}
/*
* @fn nm_bsp_register_isr
* @brief Register interrupt service routine
* @param[IN] pfIsr
* Pointer to ISR handler
*/
void nm_bsp_register_isr(tpfNmBspIsr pfIsr)
{
gpfIsr = pfIsr;
/* Configure PGIO pin for interrupt from SPI slave, used when slave has data to send. */
sysclk_enable_peripheral_clock(CONF_WINC_SPI_INT_PIO_ID);
pio_configure_pin(CONF_WINC_SPI_INT_PIN, PIO_TYPE_PIO_INPUT);
pio_pull_up(CONF_WINC_SPI_INT_PIO, CONF_WINC_SPI_INT_MASK, PIO_PULLUP);
// pio_set_debounce_filter(CONF_WINC_SPI_INT_PIO, CONF_WINC_SPI_INT_MASK, 10);
pio_handler_set_pin(CONF_WINC_SPI_INT_PIN, PIO_IT_LOW_LEVEL, chip_isr);
pio_get_interrupt_status(CONF_WINC_SPI_INT_PIO);
pio_enable_interrupt(CONF_WINC_SPI_INT_PIO, CONF_WINC_SPI_INT_MASK);
pio_handler_set_priority(CONF_WINC_SPI_INT_PIO, (IRQn_Type)CONF_WINC_SPI_INT_PIO_ID,
CONF_WINC_SPI_INT_PRIORITY);
}
/**
* \brief Process an interrupt request on the given PIO controller.
*
* \param p_pio PIO controller base address.
* \param ul_id PIO controller ID.
*/
void pio_handler_process(Pio *p_pio, uint32_t ul_id)
{
uint32_t status;
uint32_t i;
/* Read PIO controller status */
status = pio_get_interrupt_status(p_pio);
status &= pio_get_interrupt_mask(p_pio);
/* Check pending events */
if (status != 0) {
/* Find triggering source */
i = 0;
while (status != 0) {
/* Source is configured on the same controller */
if (gs_interrupt_sources[i].id == ul_id) {
/* Source has PIOs whose statuses have changed */
if ((status & gs_interrupt_sources[i].mask) != 0) {
gs_interrupt_sources[i].handler(gs_interrupt_sources[i].id,
gs_interrupt_sources[i].mask);
status &= ~(gs_interrupt_sources[i].mask);
}
}
i++;
if (i >= MAX_INTERRUPT_SOURCES) {
break;
}
}
}
/* Check capture events */
#if (SAM3S || SAM4S || SAM4E)
if (pio_capture_enable_flag) {
if (pio_capture_handler) {
pio_capture_handler(p_pio);
}
}
#endif
}
/**
* \name Main user interface functions
* @{
*/
void ui_init(void)
{
/* Enable PIO clock for button inputs */
pmc_enable_periph_clk(ID_PIOB);
pmc_enable_periph_clk(ID_PIOE);
/* Set handler for wakeup */
pio_handler_set(RESUME_PIO, RESUME_PIO_ID, RESUME_PIO_MASK,
RESUME_PIO_ATTR, ui_wakeup_handler);
/* Enable IRQ for button (PIOB) */
NVIC_EnableIRQ((IRQn_Type)RESUME_PIO_ID);
/* Enable interrupt for button pin */
pio_get_interrupt_status(RESUME_PIO);
pio_configure_pin(RESUME_PIN, RESUME_PIO_ATTR);
pio_enable_pin_interrupt(RESUME_PIN);
/* Enable fastwakeup for button pin */
pmc_set_fast_startup_input(RESUME_PMC_FSTT);
/* Initialize LEDs */
LED_Off(LED0_GPIO);
LED_Off(LED1_GPIO);
LED_Off(LED2_GPIO);
LED_Off(LED3_GPIO);
}
