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PICO: Adding tinyUSB library
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lib/main/tinyUSB/hw/bsp/stm32g0/family.c
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lib/main/tinyUSB/hw/bsp/stm32g0/family.c
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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* Copyright (c) 2023 HiFiPhile
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "stm32g0xx_hal.h"
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#include "bsp/board_api.h"
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#include "board.h"
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//--------------------------------------------------------------------+
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// Forward USB interrupt events to TinyUSB IRQ Handler
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//--------------------------------------------------------------------+
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void USB_UCPD1_2_IRQHandler(void) {
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tud_int_handler(0);
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}
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM
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//--------------------------------------------------------------------+
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UART_HandleTypeDef UartHandle;
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void board_init(void) {
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HAL_Init(); // required for HAL_RCC_Osc TODO check with freeRTOS
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board_clock_init();
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// Enable All GPIOs clocks
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOE_CLK_ENABLE();
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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__HAL_RCC_PWR_CLK_ENABLE();
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UART_CLK_EN();
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#if CFG_TUSB_OS == OPT_OS_NONE
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#elif CFG_TUSB_OS == OPT_OS_FREERTOS
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// Explicitly disable systick to prevent its ISR runs before scheduler start
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SysTick->CTRL &= ~1U;
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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NVIC_SetPriority(USB_UCPD1_2_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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#endif
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GPIO_InitTypeDef GPIO_InitStruct;
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// LED
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GPIO_InitStruct.Pin = LED_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
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board_led_write(false);
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// Button
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GPIO_InitStruct.Pin = BUTTON_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = BUTTON_STATE_ACTIVE ? GPIO_PULLDOWN : GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
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#ifdef UART_DEV
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// UART
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GPIO_InitStruct.Pin = UART_TX_PIN | UART_RX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Alternate = UART_GPIO_AF;
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HAL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
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UartHandle = (UART_HandleTypeDef){
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.Instance = UART_DEV,
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.Init.BaudRate = CFG_BOARD_UART_BAUDRATE,
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.Init.WordLength = UART_WORDLENGTH_8B,
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.Init.StopBits = UART_STOPBITS_1,
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.Init.Parity = UART_PARITY_NONE,
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.Init.HwFlowCtl = UART_HWCONTROL_NONE,
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.Init.Mode = UART_MODE_TX_RX,
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.Init.OverSampling = UART_OVERSAMPLING_16,
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.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT
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};
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HAL_UART_Init(&UartHandle);
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#endif
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// USB Pins TODO double check USB clock and pin setup
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// Configure USB DM and DP pins. This is optional, and maintained only for user guidance.
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GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* Peripheral clock enable */
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__HAL_RCC_USB_CLK_ENABLE();
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/* Enable VDDUSB */
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HAL_PWREx_EnableVddUSB();
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state) {
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GPIO_PinState pin_state = (GPIO_PinState)(state ? LED_STATE_ON : (1 - LED_STATE_ON));
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HAL_GPIO_WritePin(LED_PORT, LED_PIN, pin_state);
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}
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uint32_t board_button_read(void) {
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return BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN);
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}
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size_t board_get_unique_id(uint8_t id[], size_t max_len) {
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(void) max_len;
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volatile uint32_t * stm32_uuid = (volatile uint32_t *) UID_BASE;
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uint32_t* id32 = (uint32_t*) (uintptr_t) id;
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uint8_t const len = 12;
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id32[0] = stm32_uuid[0];
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id32[1] = stm32_uuid[1];
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id32[2] = stm32_uuid[2];
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return len;
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}
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int board_uart_read(uint8_t *buf, int len) {
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(void) buf;
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(void) len;
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return 0;
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}
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int board_uart_write(void const *buf, int len) {
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#ifdef UART_DEV
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HAL_UART_Transmit(&UartHandle, (uint8_t*)(uintptr_t) buf, len, 0xffff);
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return len;
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#else
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(void) buf;
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(void) len;
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(void) UartHandle;
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return 0;
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#endif
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler(void) {
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system_ticks++;
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HAL_IncTick();
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}
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uint32_t board_millis(void) {
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return system_ticks;
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}
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#endif
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void HardFault_Handler(void) {
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__asm("BKPT #0\n");
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}
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// Required by __libc_init_array in startup code if we are compiling using
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// -nostdlib/-nostartfiles.
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void _init(void) {
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}
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