1 files changed, 148 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/frdm_kl25z/frdm_kl25z.c b/tinyusb/hw/bsp/frdm_kl25z/frdm_kl25z.c
new file mode 100755
index 00000000..7d3a173e
--- /dev/null
+++ b/tinyusb/hw/bsp/frdm_kl25z/frdm_kl25z.c
@@ -0,0 +1,148 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018, hathach (tinyusb.org)
+ * Copyright (c) 2020, Koji Kitayama
+ *
+ * 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.
+ */
+
+#include "../board.h"
+#include "fsl_device_registers.h"
+#include "fsl_gpio.h"
+#include "fsl_port.h"
+#include "fsl_clock.h"
+#include "fsl_lpsci.h"
+
+#include "clock_config.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+void USB0_IRQHandler(void)
+{
+  tud_int_handler(0);
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+// LED
+#define LED_PINMUX            IOMUXC_GPIO_AD_B0_09_GPIO1_IO09
+#define LED_PORT              GPIOB
+#define LED_PIN_CLOCK         kCLOCK_PortB
+#define LED_PIN_PORT          PORTB
+#define LED_PIN               19U
+#define LED_PIN_FUNCTION      kPORT_MuxAsGpio
+#define LED_STATE_ON          0
+
+// UART
+#define UART_PORT             UART0
+#define UART_PIN_CLOCK        kCLOCK_PortA
+#define UART_PIN_PORT         PORTA
+#define UART_PIN_RX           1u
+#define UART_PIN_TX           2u
+#define UART_PIN_FUNCTION     kPORT_MuxAlt2
+#define SOPT5_UART0RXSRC_UART_RX      0x00u   /*!< UART0 receive data source select: UART0_RX pin */
+#define SOPT5_UART0TXSRC_UART_TX      0x00u   /*!< UART0 transmit data source select: UART0_TX pin */
+
+const uint8_t dcd_data[] = { 0x00 };
+
+void board_init(void)
+{
+  BOARD_BootClockRUN();
+  SystemCoreClockUpdate();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  // LED
+  CLOCK_EnableClock(LED_PIN_CLOCK);
+  PORT_SetPinMux(LED_PIN_PORT, LED_PIN, LED_PIN_FUNCTION);
+  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0 };
+  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
+  board_led_write(true);
+
+  // UART
+  CLOCK_EnableClock(UART_PIN_CLOCK);
+  PORT_SetPinMux(UART_PIN_PORT, UART_PIN_RX, UART_PIN_FUNCTION);
+  PORT_SetPinMux(UART_PIN_PORT, UART_PIN_TX, UART_PIN_FUNCTION);
+  SIM->SOPT5 = ((SIM->SOPT5 &
+    (~(SIM_SOPT5_UART0TXSRC_MASK | SIM_SOPT5_UART0RXSRC_MASK)))
+      | SIM_SOPT5_UART0TXSRC(SOPT5_UART0TXSRC_UART_TX)
+      | SIM_SOPT5_UART0RXSRC(SOPT5_UART0RXSRC_UART_RX)
+    );
+
+  lpsci_config_t uart_config;
+  CLOCK_SetLpsci0Clock(1);
+  LPSCI_GetDefaultConfig(&uart_config);
+  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
+  uart_config.enableTx = true;
+  uart_config.enableRx = true;
+  LPSCI_Init(UART_PORT, &uart_config, CLOCK_GetPllFllSelClkFreq());
+
+  // USB
+  CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcPll0, CLOCK_GetFreq(kCLOCK_PllFllSelClk));
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  GPIO_WritePinOutput(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return 0;
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  LPSCI_ReadBlocking(UART_PORT, buf, len);
+  return len;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  LPSCI_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
+  return len;
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif