add circuitpython code

1 files changed, 159 insertions, 0 deletions

diff --git a/circuitpython/lib/tinyusb/hw/bsp/lpc18/family.c b/circuitpython/lib/tinyusb/hw/bsp/lpc18/family.c
new file mode 100644
index 0000000..d74ebcd
--- /dev/null
+++ b/circuitpython/lib/tinyusb/hw/bsp/lpc18/family.c
@@ -0,0 +1,159 @@
+/* 
+ * 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.
+ */
+
+#include "chip.h"
+#include "bsp/board.h"
+#include "board.h"
+
+//--------------------------------------------------------------------+
+// USB Interrupt Handler
+//--------------------------------------------------------------------+
+void USB0_IRQHandler(void)
+{
+  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
+    tuh_int_handler(0);
+  #endif
+
+  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
+    tud_int_handler(0);
+  #endif
+}
+
+void USB1_IRQHandler(void)
+{
+  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
+    tuh_int_handler(1);
+  #endif
+
+  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
+    tud_int_handler(1);
+  #endif
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM DECLARATION
+//--------------------------------------------------------------------+
+
+
+/* System configuration variables used by chip driver */
+const uint32_t OscRateIn = 12000000;
+const uint32_t ExtRateIn = 0;
+
+// 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
+
+  board_lpc18_pinmux();
+  Chip_SetupXtalClocking();
+}
+
+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(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  Chip_GPIO_Init(LPC_GPIO_PORT);
+
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
+
+  // Button
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
+
+  //------------- UART -------------//
+  Chip_UART_Init(UART_DEV);
+  Chip_UART_SetBaud(UART_DEV, CFG_BOARD_UART_BAUDRATE);
+  Chip_UART_ConfigData(UART_DEV, UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS);
+  Chip_UART_TXEnable(UART_DEV);
+
+  //------------- USB -------------//
+#if CFG_TUSB_RHPORT0_MODE
+  Chip_USB0_Init();
+#endif
+
+#if CFG_TUSB_RHPORT1_MODE
+  Chip_USB1_Init();
+#endif
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
+}
+
+uint32_t board_button_read(void)
+{
+  // active low
+  return Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN) ? 0 : 1;
+}
+
+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)
+{
+  uint8_t const* buf8 = (uint8_t const*) buf;
+  for(int i=0; i<len; i++)
+  {
+    while ((Chip_UART_ReadLineStatus(UART_DEV) & UART_LSR_THRE) == 0) {}
+    Chip_UART_SendByte(UART_DEV, buf8[i]);
+  }
+
+  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