Squashed 'third_party/pico-sdk/lib/tinyusb/' content from commit 868948f67c
Change-Id: I5d33c2566dd597be9d4b1c30d4b3723c5ef4a265
git-subtree-dir: third_party/pico-sdk/lib/tinyusb
git-subtree-split: 868948f67c90fa7c2553cdcd604b52862cf55720
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.h b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.h
new file mode 100644
index 0000000..5732056
--- /dev/null
+++ b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.h
@@ -0,0 +1,52 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021, 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.
+ */
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#define BOARD_UART UART0
+#define BOARD_UART_PORT GPIOA
+
+#define BOARD_BTN_PORT GPIOF
+#define BOARD_BTN 4
+#define BOARD_BTN_Msk (1u<<4)
+#define BUTTON_STATE_ACTIVE 0
+
+#define LED_PORT GPIOF
+#define LED_PIN_RED 1
+#define LED_PIN_BLUE 2
+#define LED_PIN_GREEN 3
+#define LED_STATE_ON 1
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif
diff --git a/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.mk b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.mk
new file mode 100644
index 0000000..d60365d
--- /dev/null
+++ b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/board.mk
@@ -0,0 +1,11 @@
+CFLAGS += -DTM4C123GH6PM
+
+LD_FILE = $(BOARD_PATH)/tm4c123.ld
+
+# For flash-jlink target
+JLINK_DEVICE = TM4C123GH6PM
+
+# flash using openocd
+OPENOCD_OPTION = -f board/ti_ek-tm4c123gxl.cfg
+
+flash: flash-openocd
diff --git a/hw/bsp/tm4c123/boards/ek-tm4c123gxl/tm4c123.ld b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/tm4c123.ld
new file mode 100644
index 0000000..e2720a9
--- /dev/null
+++ b/hw/bsp/tm4c123/boards/ek-tm4c123gxl/tm4c123.ld
@@ -0,0 +1,65 @@
+ENTRY(Reset_Handler)
+
+_estack = 0x20008000; /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0; /* required amount of heap */
+_Min_Stack_Size = 0x1000; /* required amount of stack */
+
+
+MEMORY
+{
+ FLASH(rx) : ORIGIN = 0x00000000, LENGTH = 256K
+ SRAM(rwx) : ORIGIN = 0x20000000, LENGTH = 32K
+}
+
+SECTIONS
+{
+ .text :
+ {
+ . = ALIGN(4) ;
+ *(.vectors)
+ *(.text)
+ *(.text.*)
+ *(.init)
+ *(.fini)
+ *(.rodata)
+ *(.rodata.*)
+ . = ALIGN(4) ;
+ __end_text = . ;
+ } >FLASH
+
+ .data : AT(ADDR(.text) + SIZEOF(.text))
+ {
+ . = ALIGN(4);
+ __start_data = . ;
+ __la_data = LOADADDR(.data);
+ *(.data)
+ *(.data.*)
+ . = ALIGN(4);
+ __end_data = . ;
+
+ } >SRAM
+
+ .bss :
+ {
+ . = ALIGN(4) ;
+ __start_bss = . ;
+ __bss_start__ = __start_bss;
+ *(.bss)
+ *(.bss.*)
+ *(.COMMON)
+ __end_bss = . ;
+ . = ALIGN(4);
+ }>SRAM
+
+ /* User_heap_stack section, used to check that there is enough RAM left */
+ ._user_heap_stack :
+ {
+ . = ALIGN(8);
+ PROVIDE ( end = . );
+ PROVIDE ( _end = . );
+ . = . + _Min_Heap_Size;
+ . = . + _Min_Stack_Size;
+ . = ALIGN(8);
+ } >SRAM
+}
diff --git a/hw/bsp/tm4c123/family.c b/hw/bsp/tm4c123/family.c
new file mode 100644
index 0000000..449781c
--- /dev/null
+++ b/hw/bsp/tm4c123/family.c
@@ -0,0 +1,178 @@
+#include "TM4C123.h"
+#include "bsp/board.h"
+#include "board.h"
+
+//--------------------------------------------------------------------+
+// Forward USB interrupt events to TinyUSB IRQ Handler
+//--------------------------------------------------------------------+
+void USB0_Handler(void)
+{
+#if TUSB_OPT_HOST_ENABLED
+ tuh_int_handler(0);
+#endif
+
+#if TUSB_OPT_DEVICE_ENABLED
+ tud_int_handler(0);
+#endif
+}
+
+//--------------------------------------------------------------------+
+// MACRO TYPEDEF CONSTANT ENUM
+//--------------------------------------------------------------------+
+
+static void board_uart_init (void)
+{
+ SYSCTL->RCGCUART |= (1 << 0); // Enable the clock to UART0
+ SYSCTL->RCGCGPIO |= (1 << 0); // Enable the clock to GPIOA
+
+ GPIOA->AFSEL |= (1 << 1) | (1 << 0); // Enable the alternate function on pin PA0 & PA1
+ GPIOA->PCTL |= (1 << 0) | (1 << 4); // Configure the GPIOPCTL register to select UART0 in PA0 and PA1
+ GPIOA->DEN |= (1 << 0) | (1 << 1); // Enable the digital functionality in PA0 and PA1
+
+ // BAUDRATE = 115200, with SystemCoreClock = 50 Mhz refer manual for calculation
+ // - BRDI = SystemCoreClock / (16* baud)
+ // - BRDF = int(fraction*64 + 0.5)
+ UART0->CTL &= ~(1 << 0); // Disable UART0 by clearing UARTEN bit in the UARTCTL register
+ UART0->IBRD = 27; // Write the integer portion of the BRD to the UARTIRD register
+ UART0->FBRD = 8; // Write the fractional portion of the BRD to the UARTFBRD registerer
+
+ UART0->LCRH = (0x3 << 5); // 8-bit, no parity, 1 stop bit
+ UART0->CC = 0x0; // Configure the UART clock source as system clock
+
+ UART0->CTL = (1 << 0) | (1 << 8) | (1 << 9); // UART0 Enable, Transmit Enable, Recieve Enable
+}
+
+static void initialize_board_led (GPIOA_Type *port, uint8_t PinMsk, uint8_t dirmsk)
+{
+ /* Enable PortF Clock */
+ SYSCTL->RCGCGPIO |= (1 << 5);
+
+ /* Let the clock stabilize */
+ while ( !((SYSCTL->PRGPIO) & (1 << 5)) ) {}
+
+ /* Port Digital Enable */
+ port->DEN |= PinMsk;
+
+ /* Set direction */
+ port->DIR = dirmsk;
+}
+
+static void board_switch_init (void)
+{
+ GPIOF->DIR &= ~(1 << BOARD_BTN);
+ GPIOF->PUR |= (1 << BOARD_BTN);
+ GPIOF->DEN |= (1 << BOARD_BTN);
+}
+
+static void WriteGPIOPin (GPIOA_Type *port, uint8_t PinMsk, bool state)
+{
+ if ( state )
+ {
+ port->DATA |= PinMsk;
+ }
+ else
+ {
+ port->DATA &= ~(PinMsk);
+ }
+}
+
+static uint32_t ReadGPIOPin (GPIOA_Type *port, uint8_t pinMsk)
+{
+ return (port->DATA & pinMsk);
+}
+
+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
+
+ /* Reset USB */
+ SYSCTL->SRCR2 |= (1u << 16);
+
+ for ( volatile uint8_t i = 0; i < 20; i++ ) {}
+
+ SYSCTL->SRCR2 &= ~(1u << 16);
+
+ /* Open the USB clock gate */
+ SYSCTL->RCGCUSB |= (1 << 0);
+
+ /* Power-up USB PLL */
+ SYSCTL->RCC2 &= ~(1u << 14);
+
+ /* USB IO Initialization */
+ SYSCTL->RCGCGPIO |= (1u << 3);
+
+ /* Let the clock stabilize */
+ while ( !(SYSCTL->PRGPIO & (1u << 3)) ) {}
+
+ /* USB IOs to Analog Mode */
+ GPIOD->AFSEL &= ~((1u << 4) | (1u << 5));
+ GPIOD->DEN &= ~((1u << 4) | (1u << 5));
+ GPIOD->AMSEL |= ((1u << 4) | (1u << 5));
+
+ uint8_t leds = (1 << LED_PIN_RED) | (1 << LED_PIN_BLUE) | (1 << LED_PIN_GREEN);
+ uint8_t dirmsk = (1 << LED_PIN_RED) | (1 << LED_PIN_BLUE) | (1 << LED_PIN_GREEN);
+
+ /* Configure GPIO for board LED */
+ initialize_board_led(LED_PORT, leds, dirmsk);
+
+ /* Configure GPIO for board switch */
+ board_switch_init();
+
+ /* Initialize board UART */
+ board_uart_init();
+
+ TU_LOG1_INT(SystemCoreClock);
+}
+
+void board_led_write (bool state)
+{
+ WriteGPIOPin(LED_PORT, (1 << LED_PIN_BLUE), state);
+}
+
+uint32_t board_button_read (void)
+{
+ uint32_t gpio_value = ReadGPIOPin(BOARD_BTN_PORT, BOARD_BTN_Msk);
+ return BUTTON_STATE_ACTIVE ? gpio_value : !gpio_value;
+}
+
+int board_uart_write (void const *buf, int len)
+{
+ uint8_t const * data = buf;
+
+ for ( int i = 0; i < len; i++ )
+ {
+ while ( (UART0->FR & (1 << 5)) != 0 ) {} // Poll until previous data was shofted out
+ UART0->DR = data[i]; // Write UART0 DATA REGISTER
+ }
+
+ return len;
+}
+
+int board_uart_read (uint8_t *buf, int len)
+{
+ (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
+
diff --git a/hw/bsp/tm4c123/family.mk b/hw/bsp/tm4c123/family.mk
new file mode 100644
index 0000000..7510761
--- /dev/null
+++ b/hw/bsp/tm4c123/family.mk
@@ -0,0 +1,36 @@
+DEPS_SUBMODULES += hw/mcu/ti
+
+include $(TOP)/$(BOARD_PATH)/board.mk
+
+CFLAGS += \
+ -flto \
+ -mthumb \
+ -mabi=aapcs \
+ -mcpu=cortex-m4 \
+ -mfloat-abi=hard \
+ -mfpu=fpv4-sp-d16 \
+ -DCFG_TUSB_MCU=OPT_MCU_TM4C123 \
+ -uvectors \
+ -DTM4C123GH6PM
+
+# mcu driver cause following warnings
+CFLAGS += -Wno-error=strict-prototypes -Wno-error=cast-qual
+
+MCU_DIR=hw/mcu/ti/tm4c123xx/
+
+# All source paths should be relative to the top level.
+LD_FILE = $(BOARD_PATH)/tm4c123.ld
+
+INC += \
+ $(TOP)/$(MCU_DIR)/CMSIS/5.7.0/CMSIS/Include \
+ $(TOP)/$(MCU_DIR)/Include/TM4C123 \
+ $(TOP)/$(BOARD_PATH)
+
+SRC_C += \
+ src/portable/mentor/musb/dcd_musb.c \
+ src/portable/mentor/musb/hcd_musb.c \
+ $(MCU_DIR)/Source/system_TM4C123.c \
+ $(MCU_DIR)/Source/GCC/tm4c123_startup.c
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM4F