83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
#include "platform.h"
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#include <assert.h>
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#include <main.h>
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#include <furi.h>
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#include <furi-hal-spi.h>
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static osThreadAttr_t platform_irq_thread_attr;
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static volatile osThreadId_t platform_irq_thread_id = NULL;
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static volatile PlatformIrqCallback platform_irq_callback = NULL;
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static FuriHalSpiDevice* platform_st25r3916 = NULL;
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static const GpioPin pin = {ST25R_INT_PORT, ST25R_INT_PIN};
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void nfc_isr(void* _ctx) {
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if(platform_irq_callback
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&& platformGpioIsHigh(ST25R_INT_PORT, ST25R_INT_PIN)) {
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osThreadFlagsSet(platform_irq_thread_id, 0x1);
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}
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}
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void platformIrqWorker() {
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while(1) {
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uint32_t flags = osThreadFlagsWait(0x1, osFlagsWaitAny, osWaitForever);
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if (flags & 0x1) {
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platform_irq_callback();
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}
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}
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}
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void platformEnableIrqCallback() {
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hal_gpio_init(&pin, GpioModeInterruptRise, GpioPullDown, GpioSpeedLow);
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hal_gpio_enable_int_callback(&pin);
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}
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void platformDisableIrqCallback() {
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hal_gpio_init(&pin, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
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hal_gpio_disable_int_callback(&pin);
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}
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void platformSetIrqCallback(PlatformIrqCallback callback) {
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platform_irq_callback = callback;
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platform_irq_thread_attr.name = "rfal_irq_worker";
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platform_irq_thread_attr.stack_size = 1024;
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platform_irq_thread_attr.priority = osPriorityISR;
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platform_irq_thread_id = osThreadNew(platformIrqWorker, NULL, &platform_irq_thread_attr);
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hal_gpio_add_int_callback(&pin, nfc_isr, NULL);
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// Disable interrupt callback as the pin is shared between 2 apps
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// It is enabled in rfalLowPowerModeStop()
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hal_gpio_disable_int_callback(&pin);
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}
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HAL_StatusTypeDef platformSpiTxRx(const uint8_t *txBuf, uint8_t *rxBuf, uint16_t len) {
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furi_assert(platform_st25r3916);
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bool ret = false;
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if (txBuf && rxBuf) {
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ret = furi_hal_spi_bus_trx(platform_st25r3916->bus, (uint8_t*)txBuf, rxBuf, len, 1000);
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} else if (txBuf) {
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ret = furi_hal_spi_bus_tx(platform_st25r3916->bus, (uint8_t*)txBuf, len, 1000);
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} else if (rxBuf) {
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ret = furi_hal_spi_bus_rx(platform_st25r3916->bus, (uint8_t*)rxBuf, len, 1000);
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}
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if(!ret) {
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asm("bkpt 1");
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return HAL_ERROR;
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} else {
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return HAL_OK;
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}
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}
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void platformProtectST25RComm() {
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// Don't check platform_st25r3916 since spi device is used simultaneously from nfc worker
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// thread and platformIrqWorker thread with the highest priority
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// furi_assert(platform_st25r3916 == NULL);
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platform_st25r3916 = (FuriHalSpiDevice*)furi_hal_spi_device_get(FuriHalSpiDeviceIdNfc);
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}
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void platformUnprotectST25RComm() {
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// furi_assert(platform_st25r3916);
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furi_hal_spi_device_return(platform_st25r3916);
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// platform_st25r3916 = NULL;
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}
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