132 lines
4.3 KiB
C
132 lines
4.3 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 hathach for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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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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#include "tick.h"
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#include "supervisor/usb.h"
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#include "lib/utils/interrupt_char.h"
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#include "lib/mp-readline/readline.h"
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#include "py/mpconfig.h"
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#include "common-hal/microcontroller/Pin.h"
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STATIC void init_usb_vbus_sense(void) {
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#if (BOARD_NO_VBUS_SENSE)
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// Disable VBUS sensing
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#ifdef USB_OTG_GCCFG_VBDEN
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// Deactivate VBUS Sensing B
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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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#else
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
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USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN;
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USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN;
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#endif
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#else
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// Enable VBUS hardware sensing
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#ifdef USB_OTG_GCCFG_VBDEN
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
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#else
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USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS;
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBUSBSEN; // B Device sense
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#endif
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#endif
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}
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void init_usb_hardware(void) {
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//TODO: if future chips overload this with options, move to peripherals management.
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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/**USB_OTG_FS GPIO Configuration
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PA10 ------> USB_OTG_FS_ID
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PA11 ------> USB_OTG_FS_DM
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PA12 ------> USB_OTG_FS_DP
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*/
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__HAL_RCC_GPIOA_CLK_ENABLE();
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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_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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#if CPY_STM32H7
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG1_FS;
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#elif CPY_STM32F4 || CPY_STM32F7
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
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#endif
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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never_reset_pin_number(0, 11);
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never_reset_pin_number(0, 12);
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/* Configure VBUS Pin */
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#if !(BOARD_NO_VBUS_SENSE)
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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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never_reset_pin_number(0, 9);
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#endif
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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_HIGH;
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#if CPY_STM32H7
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG1_FS;
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#elif CPY_STM32F4 || CPY_STM32F7
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GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
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#endif
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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never_reset_pin_number(0, 10);
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#ifdef STM32F412Zx
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/* Configure POWER_SWITCH IO pin (F412 ONLY)*/
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GPIO_InitStruct.Pin = GPIO_PIN_8;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
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never_reset_pin_number(0, 8);
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#endif
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#if CPY_STM32H7
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HAL_PWREx_EnableUSBVoltageDetector();
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__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
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#else
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/* Peripheral clock enable */
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__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
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#endif
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init_usb_vbus_sense();
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}
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