add tinyusb

3 files changed, 426 insertions, 0 deletions

diff --git a/tinyusb/hw/bsp/mbed1768/board.mk b/tinyusb/hw/bsp/mbed1768/board.mk
new file mode 100755
index 00000000..e99df9f0
--- /dev/null
+++ b/tinyusb/hw/bsp/mbed1768/board.mk
@@ -0,0 +1,45 @@
+DEPS_SUBMODULES += hw/mcu/nxp/lpcopen
+
+CFLAGS += \
+  -flto \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m3 \
+  -nostdlib \
+  -DCORE_M3 \
+  -D__USE_LPCOPEN \
+  -DCFG_TUSB_MCU=OPT_MCU_LPC175X_6X \
+  -DRTC_EV_SUPPORT=0
+
+# startup.c and lpc_types.h cause following errors
+CFLAGS += -Wno-error=strict-prototypes
+
+MCU_DIR = hw/mcu/nxp/lpcopen/lpc175x_6x/lpc_chip_175x_6x
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/$(BOARD)/lpc1768.ld
+
+SRC_C += \
+	src/portable/nxp/lpc17_40/dcd_lpc17_40.c \
+	$(MCU_DIR)/../gcc/cr_startup_lpc175x_6x.c \
+	$(MCU_DIR)/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/src/uart_17xx_40xx.c
+
+INC += \
+	$(TOP)/$(MCU_DIR)/inc
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM3
+
+# For flash-jlink target
+JLINK_DEVICE = LPC1768
+
+# flash using pyocd 
+flash: $(BUILD)/$(PROJECT).hex
+	pyocd flash -t lpc1768 $<
+
diff --git a/tinyusb/hw/bsp/mbed1768/lpc1768.ld b/tinyusb/hw/bsp/mbed1768/lpc1768.ld
new file mode 100755
index 00000000..d1c83d8e
--- /dev/null
+++ b/tinyusb/hw/bsp/mbed1768/lpc1768.ld
@@ -0,0 +1,184 @@
+/*
+ * GENERATED FILE - DO NOT EDIT
+ * (c) Code Red Technologies Ltd, 2008-2013
+ * (c) NXP Semiconductors 2013-2019
+ * Generated linker script file for LPC1769
+ * Created from linkscript.ldt by FMCreateLinkLibraries
+ * Using Freemarker v2.3.23
+ * MCUXpresso IDE v10.2.1 [Build 795] [2018-07-25] on May 14, 2019 6:39:29 PM
+ */
+
+MEMORY
+{
+  /* Define each memory region */
+  MFlash512 (rx) : ORIGIN = 0x0, LENGTH = 0x80000 /* 512K bytes (alias Flash) */  
+  RamLoc32 (rwx) : ORIGIN = 0x10000000, LENGTH = 0x8000 /* 32K bytes (alias RAM) */  
+  RamAHB32 (rwx) : ORIGIN = 0x2007c000, LENGTH = 0x8000 /* 32K bytes (alias RAM2) */  
+}
+
+  /* Define a symbol for the top of each memory region */
+  __base_MFlash512 = 0x0  ; /* MFlash512 */  
+  __base_Flash = 0x0 ; /* Flash */  
+  __top_MFlash512 = 0x0 + 0x80000 ; /* 512K bytes */  
+  __top_Flash = 0x0 + 0x80000 ; /* 512K bytes */  
+  __base_RamLoc32 = 0x10000000  ; /* RamLoc32 */  
+  __base_RAM = 0x10000000 ; /* RAM */  
+  __top_RamLoc32 = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM = 0x10000000 + 0x8000 ; /* 32K bytes */  
+  __base_RamAHB32 = 0x2007c000  ; /* RamAHB32 */  
+  __base_RAM2 = 0x2007c000 ; /* RAM2 */  
+  __top_RamAHB32 = 0x2007c000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM2 = 0x2007c000 + 0x8000 ; /* 32K bytes */  
+
+ENTRY(ResetISR)
+
+SECTIONS
+{
+    /* MAIN TEXT SECTION */
+    .text : ALIGN(4)
+    {
+        FILL(0xff)
+        __vectors_start__ = ABSOLUTE(.) ;
+        KEEP(*(.isr_vector))
+        /* Global Section Table */
+        . = ALIGN(4) ;
+        __section_table_start = .;
+        __data_section_table = .;
+        LONG(LOADADDR(.data));
+        LONG(    ADDR(.data));
+        LONG(  SIZEOF(.data));
+        LONG(LOADADDR(.data_RAM2));
+        LONG(    ADDR(.data_RAM2));
+        LONG(  SIZEOF(.data_RAM2));
+        __data_section_table_end = .;
+        __bss_section_table = .;
+        LONG(    ADDR(.bss));
+        LONG(  SIZEOF(.bss));
+        LONG(    ADDR(.bss_RAM2));
+        LONG(  SIZEOF(.bss_RAM2));
+        __bss_section_table_end = .;
+        __section_table_end = . ;
+        /* End of Global Section Table */
+
+        *(.after_vectors*)
+
+    } > MFlash512
+
+    .text : ALIGN(4)
+    {
+       *(.text*)
+       *(.rodata .rodata.* .constdata .constdata.*)
+       . = ALIGN(4);
+    } > MFlash512
+    /*
+     * for exception handling/unwind - some Newlib functions (in common
+     * with C++ and STDC++) use this. 
+     */
+    .ARM.extab : ALIGN(4) 
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > MFlash512
+
+    __exidx_start = .;
+
+    .ARM.exidx : ALIGN(4)
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > MFlash512
+    __exidx_end = .;
+
+    _etext = .;
+        
+    /* DATA section for RamAHB32 */
+
+    .data_RAM2 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM2 = .) ;
+        *(.ramfunc.$RAM2)
+        *(.ramfunc.$RamAHB32)
+        *(.data.$RAM2*)
+        *(.data.$RamAHB32*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM2 = .) ;
+     } > RamAHB32 AT>MFlash512
+    /* MAIN DATA SECTION */
+    .uninit_RESERVED : ALIGN(4)
+    {
+        KEEP(*(.bss.$RESERVED*))
+        . = ALIGN(4) ;
+        _end_uninit_RESERVED = .;
+    } > RamLoc32
+
+    /* Main DATA section (RamLoc32) */
+    .data : ALIGN(4)
+    {
+       FILL(0xff)
+       _data = . ;
+       *(vtable)
+       *(.ramfunc*)
+       *(.data*)
+       . = ALIGN(4) ;
+       _edata = . ;
+    } > RamLoc32 AT>MFlash512
+
+    /* BSS section for RamAHB32 */
+    .bss_RAM2 : ALIGN(4)
+    {
+       PROVIDE(__start_bss_RAM2 = .) ;
+       *(.bss.$RAM2*)
+       *(.bss.$RamAHB32*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM2 = .) ;
+    } > RamAHB32 
+
+    /* MAIN BSS SECTION */
+    .bss : ALIGN(4)
+    {
+        _bss = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4) ;
+        _ebss = .;
+        PROVIDE(end = .);
+    } > RamLoc32
+
+    /* NOINIT section for RamAHB32 */
+    .noinit_RAM2 (NOLOAD) : ALIGN(4)
+    {
+       *(.noinit.$RAM2*)
+       *(.noinit.$RamAHB32*)
+       . = ALIGN(4) ;
+    } > RamAHB32 
+
+    /* DEFAULT NOINIT SECTION */
+    .noinit (NOLOAD): ALIGN(4)
+    {
+        _noinit = .;
+        *(.noinit*) 
+         . = ALIGN(4) ;
+        _end_noinit = .;
+    } > RamLoc32
+    PROVIDE(_pvHeapStart = DEFINED(__user_heap_base) ? __user_heap_base : .);
+    PROVIDE(_vStackTop = DEFINED(__user_stack_top) ? __user_stack_top : __top_RamLoc32 - 0);
+
+    /* ## Create checksum value (used in startup) ## */
+    PROVIDE(__valid_user_code_checksum = 0 - 
+                                         (_vStackTop 
+                                         + (ResetISR + 1) 
+                                         + (NMI_Handler + 1) 
+                                         + (HardFault_Handler + 1) 
+                                         + (( DEFINED(MemManage_Handler) ? MemManage_Handler : 0 ) + 1)   /* MemManage_Handler may not be defined */
+                                         + (( DEFINED(BusFault_Handler) ? BusFault_Handler : 0 ) + 1)     /* BusFault_Handler may not be defined */
+                                         + (( DEFINED(UsageFault_Handler) ? UsageFault_Handler : 0 ) + 1) /* UsageFault_Handler may not be defined */
+                                         ) );
+
+    /* Provide basic symbols giving location and size of main text
+     * block, including initial values of RW data sections. Note that
+     * these will need extending to give a complete picture with
+     * complex images (e.g multiple Flash banks).
+     */
+    _image_start = LOADADDR(.text);
+    _image_end = LOADADDR(.data) + SIZEOF(.data);
+    _image_size = _image_end - _image_start;
+}
\ No newline at end of file
diff --git a/tinyusb/hw/bsp/mbed1768/mbed1768.c b/tinyusb/hw/bsp/mbed1768/mbed1768.c
new file mode 100755
index 00000000..5495ed16
--- /dev/null
+++ b/tinyusb/hw/bsp/mbed1768/mbed1768.c
@@ -0,0 +1,197 @@
+/* 
+ * 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 "../board.h"
+
+#define LED_PORT              1
+#define LED_PIN               18
+#define LED_STATE_ON          1
+
+// JOYSTICK_DOWN if using LPCXpresso Base Board
+#define BUTTON_PORT           0
+#define BUTTON_PIN            15
+#define BUTTON_STATE_ACTIVE   0
+
+#define BOARD_UART_PORT   LPC_UART3
+
+/* System oscillator rate and RTC oscillator rate */
+const uint32_t OscRateIn = 10000000;
+const uint32_t RTCOscRateIn = 32768;
+
+/* Pin muxing configuration */
+static const PINMUX_GRP_T pinmuxing[] =
+{
+  {LED_PORT,  LED_PIN,  IOCON_MODE_INACT | IOCON_FUNC0},
+  {BUTTON_PORT, BUTTON_PIN, IOCON_FUNC0 | IOCON_MODE_PULLUP},
+};
+
+static const PINMUX_GRP_T pin_usb_mux[] =
+{
+  {0, 29, IOCON_MODE_INACT | IOCON_FUNC1}, // D+
+  {0, 30, IOCON_MODE_INACT | IOCON_FUNC1}, // D-
+  {2,  9, IOCON_MODE_INACT | IOCON_FUNC1}, // Connect
+
+  {1, 19, IOCON_MODE_INACT | IOCON_FUNC2}, // USB_PPWR
+  {1, 22, IOCON_MODE_INACT | IOCON_FUNC2}, // USB_PWRD
+
+  /* VBUS is not connected on this board, so leave the pin at default setting. */
+  /*Chip_IOCON_PinMux(LPC_IOCON, 1, 30, IOCON_MODE_INACT, IOCON_FUNC2);*/ /* USB VBUS */
+};
+
+// 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();
+}
+
+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);
+
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO, LED_PORT, LED_PIN);
+
+  // Button
+  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 = TUSB_OPT_DEVICE_ENABLED ? USBCLK_DEVCIE : USBCLK_HOST;
+
+  LPC_USB->OTGClkCtrl = clk_en;
+  while ( (LPC_USB->OTGClkSt & clk_en) != clk_en );
+
+#if TUSB_OPT_HOST_ENABLED
+  // set portfunc to host !!!
+  LPC_USB->StCtrl = 0x3; // should be 1
+#endif
+}
+
+//--------------------------------------------------------------------+
+// USB Interrupt Handler
+//--------------------------------------------------------------------+
+void USB_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
+}
+
+//--------------------------------------------------------------------+
+// 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;
+}
+#endif