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