301 lines
8.9 KiB
C
301 lines
8.9 KiB
C
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019
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* William D. Jones (thor0505@comcast.net),
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* Ha Thach (tinyusb.org)
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* Uwe Bonnes (bon@elektron.ikp.physik.tu-darmstadt.de
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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 "stm32h7xx_hal.h"
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#include "bsp/board.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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// Despite being call USB2_OTG
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// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
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void OTG_FS_IRQHandler(void)
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{
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tud_int_handler(0);
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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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{
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tud_int_handler(1);
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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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//--------------------------------------------------------------------+
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//
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//--------------------------------------------------------------------+
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#ifdef TRACE_ETM
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void trace_etm_init(void) {
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// H7 trace pin is PE2 to PE6
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// __HAL_RCC_GPIOE_CLK_ENABLE();
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GPIO_InitTypeDef gpio_init;
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gpio_init.Pin = GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6;
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gpio_init.Mode = GPIO_MODE_AF_PP;
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gpio_init.Pull = GPIO_PULLUP;
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gpio_init.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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gpio_init.Alternate = GPIO_AF0_TRACE;
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HAL_GPIO_Init(GPIOE, &gpio_init);
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// Enable trace clk, also in D1 and D3 domain
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DBGMCU->CR |= DBGMCU_CR_DBG_TRACECKEN | DBGMCU_CR_DBG_CKD1EN | DBGMCU_CR_DBG_CKD3EN;
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}
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#else
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#define trace_etm_init()
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#endif
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void board_init(void)
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{
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board_stm32h7_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(); // USB ULPI NXT
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__HAL_RCC_GPIOC_CLK_ENABLE(); // USB ULPI NXT
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOE_CLK_ENABLE();
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__HAL_RCC_GPIOF_CLK_ENABLE();
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__HAL_RCC_GPIOG_CLK_ENABLE();
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__HAL_RCC_GPIOH_CLK_ENABLE(); // USB ULPI NXT
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#ifdef __HAL_RCC_GPIOI_CLK_ENABLE
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__HAL_RCC_GPIOI_CLK_ENABLE(); // USB ULPI NXT
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#endif
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__HAL_RCC_GPIOJ_CLK_ENABLE();
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trace_etm_init();
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// Enable UART Clock
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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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#ifdef USB_OTG_FS_PERIPH_BASE
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NVIC_SetPriority(OTG_FS_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
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#endif
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NVIC_SetPriority(OTG_HS_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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// 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 = GPIO_NOPULL;
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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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// 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_VERY_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.Instance = UART_DEV;
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UartHandle.Init.BaudRate = CFG_BOARD_UART_BAUDRATE;
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UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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UartHandle.Init.StopBits = UART_STOPBITS_1;
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UartHandle.Init.Parity = UART_PARITY_NONE;
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UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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UartHandle.Init.Mode = UART_MODE_TX_RX;
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UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
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HAL_UART_Init(&UartHandle);
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#if BOARD_TUD_RHPORT == 0
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// Despite being call USB2_OTG
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// OTG_FS is marked as RHPort0 by TinyUSB to be consistent across stm32 port
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// PA9 VUSB, PA10 ID, PA11 DM, PA12 DP
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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.Speed = GPIO_SPEED_FREQ_HIGH;
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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_OTG2_HS;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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// This for ID line debug
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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.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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// https://community.st.com/s/question/0D50X00009XkYZLSA3/stm32h7-nucleo-usb-fs-cdc
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// TODO: Board init actually works fine without this line.
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HAL_PWREx_EnableUSBVoltageDetector();
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__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
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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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// Enable VBUS sense (B device) via pin PA9
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
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#else
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// Disable VBUS sense (B device) via pin PA9
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USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
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// B-peripheral session valid override enable
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USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
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USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
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#endif // vbus sense
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#elif BOARD_TUD_RHPORT == 1
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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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struct {
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GPIO_TypeDef* port;
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uint32_t pin;
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} const ulpi_pins[] =
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{
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ULPI_PINS
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};
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for (uint8_t i=0; i < sizeof(ulpi_pins)/sizeof(ulpi_pins[0]); i++)
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{
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GPIO_InitStruct.Pin = ulpi_pins[i].pin;
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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_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
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HAL_GPIO_Init(ulpi_pins[i].port, &GPIO_InitStruct);
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}
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// Enable USB HS & ULPI Clocks
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__HAL_RCC_USB1_OTG_HS_ULPI_CLK_ENABLE();
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__HAL_RCC_USB1_OTG_HS_CLK_ENABLE();
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#if OTG_HS_VBUS_SENSE
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#error OTG HS VBUS Sense enabled is not implemented
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#else
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// No VBUS sense
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USB_OTG_HS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
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// B-peripheral session valid override enable
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USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
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USB_OTG_HS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
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#endif
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// Force device mode
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USB_OTG_HS->GUSBCFG &= ~USB_OTG_GUSBCFG_FHMOD;
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USB_OTG_HS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
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HAL_PWREx_EnableUSBVoltageDetector();
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// For waveshare openh743 ULPI PHY reset walkaround
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board_stm32h7_post_init();
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#endif // rhport = 1
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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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{
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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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{
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return (BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN)) ? 1 : 0;
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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(void) buf; (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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{
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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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}
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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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{
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HAL_IncTick();
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system_ticks++;
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}
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uint32_t board_millis(void)
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{
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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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{
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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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}
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