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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 hathach for Adafruit Industries
* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
*
* 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.
*/
#include "tick.h"
#include "supervisor/usb.h"
#include "lib/utils/interrupt_char.h"
#include "lib/mp-readline/readline.h"
#include "py/mpconfig.h"
#include "common-hal/microcontroller/Pin.h"
STATIC void init_usb_vbus_sense(void) {
#if (BOARD_NO_VBUS_SENSE)
// Disable VBUS sensing
#ifdef USB_OTG_GCCFG_VBDEN
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
#else
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN;
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN;
#endif
#else
// Enable VBUS hardware sensing
#ifdef USB_OTG_GCCFG_VBDEN
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
#else
USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS;
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBUSBSEN; // B Device sense
#endif
#endif
}
void init_usb_hardware(void) {
//TODO: if future chips overload this with options, move to peripherals management.
GPIO_InitTypeDef GPIO_InitStruct = {0};
/**USB_OTG_FS GPIO Configuration
PA10 ------> USB_OTG_FS_ID
PA11 ------> USB_OTG_FS_DM
PA12 ------> USB_OTG_FS_DP
*/
__HAL_RCC_GPIOA_CLK_ENABLE();
/* Configure DM DP Pins */
GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
#if defined(STM32H7)
GPIO_InitStruct.Alternate = GPIO_AF10_OTG1_FS;
#else
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
#endif
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
never_reset_pin_number(0, 11);
never_reset_pin_number(0, 12);
/* 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);
never_reset_pin_number(0, 9);
/* This for ID line debug */
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
#if defined(STM32H7)
GPIO_InitStruct.Alternate = GPIO_AF10_OTG1_FS;
#else
GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
#endif
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
never_reset_pin_number(0, 10);
#ifdef STM32F412Zx
/* Configure POWER_SWITCH IO pin (F412 ONLY)*/
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
never_reset_pin_number(0, 8);
#endif
#if defined(STM32H7)
HAL_PWREx_EnableUSBVoltageDetector();
__HAL_RCC_USB2_OTG_FS_CLK_ENABLE();
#else
/* Peripheral clock enable */
__HAL_RCC_USB_OTG_FS_CLK_DISABLE();
__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
#endif
init_usb_vbus_sense();
}
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