/* * The MIT License (MIT) * * Copyright (c) 2019 William D. Jones (thor0505@comcast.net), * Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de), * 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: STMicroelectronics */ #include "stm32f7xx_hal.h" #include "bsp/board_api.h" #include "common/tusb_fifo.h" typedef struct { GPIO_TypeDef *port; GPIO_InitTypeDef pin_init; uint8_t active_state; } board_pindef_t; #include "board.h" #ifdef UART_ID #if UART_ID == 1 #define USARTn USART1 #define USARTn_IRQn USART1_IRQn #define USARTn_IRQHandler USART1_IRQHandler #define UARTn_CLK_ENABLE __HAL_RCC_USART1_CLK_ENABLE #elif UART_ID == 2 #define USARTn USART2 #define USARTn_IRQn USART2_IRQn #define USARTn_IRQHandler USART2_IRQHandler #define UARTn_CLK_ENABLE __HAL_RCC_USART2_CLK_ENABLE #elif UART_ID == 3 #define USARTn USART3 #define USARTn_IRQn USART3_IRQn #define USARTn_IRQHandler USART3_IRQHandler #define UARTn_CLK_ENABLE __HAL_RCC_USART3_CLK_ENABLE #elif UART_ID == 6 #define USARTn USART6 #define USARTn_IRQn USART6_IRQn #define USARTn_IRQHandler USART6_IRQHandler #define UARTn_CLK_ENABLE __HAL_RCC_USART6_CLK_ENABLE #endif #endif //--------------------------------------------------------------------+ // MACRO TYPEDEF CONSTANT ENUM //--------------------------------------------------------------------+ #ifdef UART_ID static UART_HandleTypeDef UartHandle = {.Instance = USARTn, .Init = { .BaudRate = CFG_BOARD_UART_BAUDRATE, .WordLength = UART_WORDLENGTH_8B, .StopBits = UART_STOPBITS_1, .Parity = UART_PARITY_NONE, .HwFlowCtl = UART_HWCONTROL_NONE, .Mode = UART_MODE_TX_RX, .OverSampling = UART_OVERSAMPLING_16, }}; // RX ring buffer via RXNE interrupt — no HAL IT functions used (avoid HAL state conflicts). // Sized to absorb a full host-forwarding burst (>64B) when the main loop briefly stalls. static uint8_t uart_rx_ff_buf[256]; static tu_fifo_t uart_rx_ff; void USARTn_IRQHandler(void) { uint32_t isr = USARTn->ISR; if (isr & USART_ISR_RXNE) { uint8_t byte = (uint8_t) USARTn->RDR; tu_fifo_write(&uart_rx_ff, &byte); } if (isr & (USART_ISR_ORE | USART_ISR_FE | USART_ISR_NE | USART_ISR_PE)) { USARTn->ICR = USART_ICR_ORECF | USART_ICR_FECF | USART_ICR_NCF | USART_ICR_PECF; } } #endif //--------------------------------------------------------------------+ // Forward USB interrupt events to TinyUSB IRQ Handler //--------------------------------------------------------------------+ void OTG_FS_IRQHandler(void) { tusb_int_handler(0, true); } // Despite being call USB2_OTG // OTG_HS is marked as RHPort1 by TinyUSB to be consistent across stm32 port void OTG_HS_IRQHandler(void) { tusb_int_handler(1, true); } //--------------------------------------------------------------------+ // MACRO TYPEDEF CONSTANT ENUM //--------------------------------------------------------------------+ void board_init(void) { SCB_EnableICache(); HAL_Init(); board_clock_init(); // Enable All GPIOs clocks __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOG_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); // ULPI NXT __HAL_RCC_GPIOI_CLK_ENABLE(); // ULPI NXT #ifdef __HAL_RCC_GPIOJ_CLK_ENABLE __HAL_RCC_GPIOJ_CLK_ENABLE(); #endif for (uint8_t i = 0; i < TU_ARRAY_SIZE(board_pindef); i++) { HAL_GPIO_Init(board_pindef[i].port, &board_pindef[i].pin_init); } #if CFG_TUSB_OS == OPT_OS_NONE // 1ms tick timer SysTick_Config(SystemCoreClock / 1000); // Set UART interrupt higher priority than USB OTG since the F7 USART has no hardware RX FIFO, so a host example's // UART RX must not be starved by the frequent USB host interrupts or incoming bytes overrun (ORE) and dropped. NVIC_SetPriority(OTG_FS_IRQn, 1); NVIC_SetPriority(OTG_HS_IRQn, 1); #ifdef UART_ID NVIC_SetPriority(USARTn_IRQn, 0); #endif #elif CFG_TUSB_OS == OPT_OS_FREERTOS // Explicitly disable systick to prevent its ISR from running before scheduler start SysTick->CTRL &= ~1U; // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher ) NVIC_SetPriority(OTG_FS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY + 1); NVIC_SetPriority(OTG_HS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY + 1); #ifdef UART_ID NVIC_SetPriority(USARTn_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY); #endif #endif #ifdef UART_ID UARTn_CLK_ENABLE(); HAL_UART_Init(&UartHandle); tu_fifo_config(&uart_rx_ff, uart_rx_ff_buf, sizeof(uart_rx_ff_buf), false); USARTn->CR1 |= USART_CR1_RXNEIE; NVIC_EnableIRQ(USARTn_IRQn); #endif GPIO_InitTypeDef GPIO_InitStruct; //------------- rhport0: OTG_FS -------------// /* Configure DM DP Pins */ GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12); GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* Configure OTG-FS ID pin */ GPIO_InitStruct.Pin = GPIO_PIN_10; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); // Suppress warning caused by mcu driver #ifdef __GNUC__ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wshadow" #endif /* Enable USB FS Clocks */ __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); #ifdef __GNUC__ #pragma GCC diagnostic pop #endif #if OTG_FS_VBUS_SENSE /* Configure VBUS Pin */ GPIO_InitStruct.Pin = GPIO_PIN_9; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); #endif // vbus sense #if CFG_TUD_ENABLED && BOARD_TUD_RHPORT == 0 tud_configure_dwc2_t cfg = CFG_TUD_CONFIGURE_DWC2_DEFAULT; cfg.vbus_sensing = OTG_FS_VBUS_SENSE; tud_configure(0, TUD_CFGID_DWC2, &cfg); #endif //------------- rhport1: OTG_HS -------------// #ifdef USB_HS_PHYC // MCU with built-in HS PHY such as F723, F733, F730 /* Configure DM DP Pins */ GPIO_InitStruct.Pin = (GPIO_PIN_14 | GPIO_PIN_15); GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /* Configure OTG-HS ID pin */ GPIO_InitStruct.Pin = GPIO_PIN_13; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Alternate = GPIO_AF12_OTG_HS_FS; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /* Enable PHYC Clocks */ __HAL_RCC_OTGPHYC_CLK_ENABLE(); #else // MCU with external ULPI PHY /* ULPI CLK */ GPIO_InitStruct.Pin = GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* ULPI D0 */ GPIO_InitStruct.Pin = GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* ULPI D1 D2 D3 D4 D5 D6 D7 */ GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_5; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /* ULPI STP */ GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_2; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); /* NXT */ GPIO_InitStruct.Pin = GPIO_PIN_4; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); /* ULPI DIR */ GPIO_InitStruct.Pin = GPIO_PIN_11; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS; HAL_GPIO_Init(GPIOI, &GPIO_InitStruct); #endif // USB_HS_PHYC // Enable USB HS & ULPI Clocks __HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE(); __HAL_RCC_USB_OTG_HS_CLK_ENABLE(); #if CFG_TUD_ENABLED && BOARD_TUD_RHPORT == 1 tud_configure_dwc2_t cfg = CFG_TUD_CONFIGURE_DWC2_DEFAULT; cfg.vbus_sensing = OTG_HS_VBUS_SENSE; tud_configure(1, TUD_CFGID_DWC2, &cfg); #endif // Turn off device vbus #if CFG_TUD_ENABLED board_vbus_set(BOARD_TUD_RHPORT, false); #endif // Turn on host vbus #if CFG_TUH_ENABLED board_vbus_set(BOARD_TUH_RHPORT, true); #endif } //--------------------------------------------------------------------+ // Board porting API //--------------------------------------------------------------------+ void board_led_write(bool state) { #ifdef PINID_LED board_pindef_t *pindef = &board_pindef[PINID_LED]; GPIO_PinState pin_state = state == pindef->active_state ? GPIO_PIN_SET : GPIO_PIN_RESET; HAL_GPIO_WritePin(pindef->port, pindef->pin_init.Pin, pin_state); #else (void)state; #endif } uint32_t board_button_read(void) { #ifdef PINID_BUTTON board_pindef_t *pindef = &board_pindef[PINID_BUTTON]; return pindef->active_state == HAL_GPIO_ReadPin(pindef->port, pindef->pin_init.Pin); #else return 0; #endif } size_t board_get_unique_id(uint8_t id[], size_t max_len) { (void)max_len; volatile uint32_t *stm32_uuid = (volatile uint32_t *)UID_BASE; uint32_t *id32 = (uint32_t *)(uintptr_t)id; const uint8_t len = 12; id32[0] = stm32_uuid[0]; id32[1] = stm32_uuid[1]; id32[2] = stm32_uuid[2]; return len; } int board_uart_read(uint8_t *buf, int len) { #ifdef UART_ID return (int)tu_fifo_read_n(&uart_rx_ff, buf, (uint16_t)len); #else (void)buf; (void)len; return 0; #endif } int board_uart_write(const void *buf, int len) { #ifdef UART_ID const uint8_t *p = (const uint8_t *)buf; int count = 0; while (count < len) { if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE)) { UartHandle.Instance->TDR = p[count]; count++; } else { break; } } return count; #else (void)buf; (void)len; return -1; #endif } #if CFG_TUSB_OS == OPT_OS_NONE volatile uint32_t system_ticks = 0; void SysTick_Handler(void) { HAL_IncTick(); system_ticks++; } uint32_t tusb_time_millis_api(void) { return system_ticks; } #elif CFG_TUSB_OS == OPT_OS_THREADX // Keep HAL_GetTick() working for HAL functions called from board_init() void osal_threadx_tick_cb(void) { HAL_IncTick(); } #endif void HardFault_Handler(void) { __asm("BKPT #0\n"); } // Required by __libc_init_array in startup code if we are compiling using // -nostdlib/-nostartfiles. void _init(void) { }