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third_party/tinyusb/hw/bsp/rw61x/family.c

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+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018, hathach (tinyusb.org)
+ * Copyright (c) 2025, Gabriel Koppenstein
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+/* metadata:
+   manufacturer: NXP
+*/
+
+#include "bsp/board_api.h"
+#include "fsl_device_registers.h"
+#include "fsl_gpio.h"
+#include "board.h"
+#include "fsl_usart.h"
+#include "fsl_clock.h"
+
+#include "pin_mux.h"
+#include "clock_config.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+
+void USB_IRQHandler(void) {
+  tusb_int_handler(1, true);
+}
+
+void board_init(void) {
+
+  // Init button pin, LED pins, SWD pins & UART pins
+  BOARD_InitBootPins();
+
+  // Init Clocks
+  BOARD_InitBootClocks();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // Explicitly disable systick to prevent its ISR from running before scheduler start
+  SysTick->CTRL &= ~1U;
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
+#endif
+
+#ifdef NEOPIXEL_PIN
+  // No neo pixel support yet
+#endif
+
+#ifdef UART_DEV
+  // Enable UART when debug log is on
+  board_uart_init_clock();
+  usart_config_t uart_config;
+  USART_GetDefaultConfig(&uart_config);
+  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
+  uart_config.enableRx = true;
+  uart_config.enableTx = true;
+  USART_Init(UART_DEV, &uart_config, CLOCK_GetFlexCommClkFreq(LP_FLEXCOMM_INST));
+#endif
+
+  // USB Initialization
+  // Reset USB
+  RESET_PeripheralReset(kUSB_RST_SHIFT_RSTn);
+
+  // Enable USB Clock
+  CLOCK_EnableClock(kCLOCK_Usb);
+
+  // Enable USB PHY
+  CLOCK_EnableUsbhsPhyClock();
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state) {
+  GPIO_PinWrite(LED_GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1 - LED_STATE_ON));
+}
+
+uint32_t board_button_read(void) {
+#ifdef BUTTON_GPIO
+  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_GPIO, BOARD_INITPINS_WAKEUP_BTN_PORT, BUTTON_PIN);
+#endif
+}
+
+int board_uart_read(uint8_t* buf, int len) {
+  (void) buf;
+  (void) len;
+  return -1;
+}
+
+int board_uart_write(void const* buf, int len) {
+#ifdef UART_DEV
+  const uint8_t *p = (const uint8_t *) buf;
+  int count = 0;
+  while (count < len) {
+    if (UART_DEV->FIFOSTAT & USART_FIFOSTAT_TXNOTFULL_MASK) {
+      UART_DEV->FIFOWR = p[count];
+      count++;
+    } else {
+      break;
+    }
+  }
+  return count;
+#else
+  (void) buf; (void) len;
+  return -1;
+#endif
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+
+void SysTick_Handler(void) {
+  system_ticks++;
+}
+
+uint32_t tusb_time_millis_api(void) {
+  return system_ticks;
+}
+
+#endif