Initial project setup

managed_components/espressif__tinyusb/hw/bsp/lpc17/family.c

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+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * 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 "chip.h"
+#include "bsp/board_api.h"
+#include "board.h"
+
+// Invoked by startup code
+void SystemInit(void) {
+#ifdef __USE_LPCOPEN
+  extern void (* const g_pfnVectors[])(void);
+  unsigned int* pSCB_VTOR = (unsigned int*) 0xE000ED08;
+  *pSCB_VTOR = (unsigned int) g_pfnVectors;
+#endif
+
+  Chip_IOCON_Init(LPC_IOCON);
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
+  Chip_SetupXtalClocking();
+
+  Chip_SYSCTL_SetFLASHAccess(FLASHTIM_100MHZ_CPU);
+}
+
+void board_init(void) {
+  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(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  Chip_GPIO_Init(LPC_GPIO);
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+
+#if 0
+  //------------- UART -------------//
+  PINSEL_CFG_Type PinCfg =
+  {
+      .Portnum   = 0,
+      .Pinnum    = 0, // TXD is P0.0
+      .Funcnum   = 2,
+      .OpenDrain = 0,
+      .Pinmode   = 0
+  };
+  PINSEL_ConfigPin(&PinCfg);
+
+  PinCfg.Portnum = 0;
+  PinCfg.Pinnum  = 1; // RXD is P0.1
+  PINSEL_ConfigPin(&PinCfg);
+
+  UART_CFG_Type UARTConfigStruct;
+  UART_ConfigStructInit(&UARTConfigStruct);
+  UARTConfigStruct.Baud_rate = CFG_BOARD_UART_BAUDRATE;
+
+  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
+  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
+#endif
+
+  //------------- USB -------------//
+  Chip_IOCON_SetPinMuxing(LPC_IOCON, pin_usb_mux, sizeof(pin_usb_mux) / sizeof(PINMUX_GRP_T));
+  Chip_USB_Init();
+
+  enum {
+    USBCLK_DEVCIE = 0x12,     // AHB + Device
+    USBCLK_HOST = 0x19,     // AHB + Host + OTG
+//    0x1B // Host + Device + OTG + AHB
+  };
+
+  uint32_t const clk_en = CFG_TUD_ENABLED ? USBCLK_DEVCIE : USBCLK_HOST;
+
+  LPC_USB->OTGClkCtrl = clk_en;
+  while ((LPC_USB->OTGClkSt & clk_en) != clk_en) {}
+
+#if CFG_TUH_ENABLED
+  // set portfunc to host !!!
+  LPC_USB->StCtrl = 0x3; // should be 1
+#endif
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+void board_led_write(bool state) {
+  Chip_GPIO_SetPinState(LPC_GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1 - LED_STATE_ON));
+}
+
+uint32_t board_button_read(void) {
+  return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO, BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t* buf, int len) {
+//  return UART_ReceiveByte(BOARD_UART_PORT);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const* buf, int len) {
+//  UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+#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;
+}
+
+//--------------------------------------------------------------------+
+// USB Interrupt Handler
+//--------------------------------------------------------------------+
+void USB_IRQHandler(void) {
+  #if CFG_TUD_ENABLED
+  tud_int_handler(0);
+  #endif
+
+  #if CFG_TUH_ENABLED
+  tuh_int_handler(0, true);
+  #endif
+}
+
+#endif