| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include <os/mynewt.h> |
| #include <mcu/mcu.h> |
| |
| #include <tusb.h> |
| |
| #include <mcu/stm32_hal.h> |
| |
| static void |
| OTG_FS_IRQHandler(void) |
| { |
| /* TinyUSB provides interrupt handler code */ |
| tud_int_handler(0); |
| } |
| |
| void |
| tinyusb_hardware_init(void) |
| { |
| NVIC_SetVector(OTG_FS_IRQn, (uint32_t)OTG_FS_IRQHandler); |
| NVIC_SetPriority(OTG_FS_IRQn, 2); |
| |
| /* |
| * USB Pin Init |
| * PA11- DM, PA12- DP |
| */ |
| hal_gpio_init_af(MCU_GPIO_PORTA(11), GPIO_AF10_OTG_FS, GPIO_NOPULL, GPIO_MODE_AF_PP); |
| #if MYNEWT_VAL(USB_DP_HAS_EXTERNAL_PULL_UP) |
| hal_gpio_init_out(MCU_GPIO_PORTA(12), 0); |
| os_time_delay(1); |
| #endif |
| hal_gpio_init_af(MCU_GPIO_PORTA(12), GPIO_AF10_OTG_FS, GPIO_NOPULL, GPIO_MODE_AF_PP); |
| |
| /* |
| * Enable USB OTG clock, force device mode |
| */ |
| __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); |
| |
| #if MYNEWT_VAL(USB_ID_PIN_ENABLE) |
| hal_gpio_init_af(MCU_GPIO_PORTA(10), GPIO_AF10_OTG_FS, GPIO_PULLUP, GPIO_MODE_AF_OD); |
| #else |
| USB_OTG_FS->GUSBCFG &= ~USB_OTG_GUSBCFG_FHMOD; |
| USB_OTG_FS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD; |
| #endif |
| |
| #ifdef USB_OTG_GCCFG_NOVBUSSENS |
| #if !MYNEWT_VAL(USB_VBUS_DETECTION_ENABLE) |
| /* PA9- VUSB not used for USB */ |
| USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS; |
| USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN; |
| USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN; |
| #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; |
| hal_gpio_init_af(MCU_GPIO_PORTA(9), GPIO_AF10_OTG_FS, GPIO_NOPULL, GPIO_MODE_AF_PP); |
| #endif |
| #elif USB_OTG_GCCFG_VBDEN |
| #if MYNEWT_VAL(USB_VBUS_DETECTION_ENABLE) |
| hal_gpio_init_in(MCU_GPIO_PORTA(9), HAL_GPIO_PULL_NONE); |
| USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN; |
| #else |
| /* PA9- VUSB not used for USB */ |
| USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN; |
| /* B-peripheral session valid override enable */ |
| USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN; |
| USB_OTG_FS->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL; |
| #endif |
| #endif |
| } |