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DISCO_L475VG_IOT: Add USB Device files
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‎targets/TARGET_STM/TARGET_STM32L4/TARGET_DISCO_L475VG_IOT01A/USBHAL_STM32L475VG.h

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/* Copyright (c) 2016 mbed.org, MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
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* and associated documentation files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
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* Software is 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 all copies or
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* 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 IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER 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 THE SOFTWARE.
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*/
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#ifndef USBHAL_STM32L475VG
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#define USBHAL_STM32L475VG
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#define USBHAL_IRQn OTG_FS_IRQn
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#define NB_ENDPOINT 4
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/* must be multiple of 4 bytes */
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#define MAXTRANSFER_SIZE 0x200
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#define FIFO_USB_RAM_SIZE (MAXTRANSFER_SIZE+MAX_PACKET_SIZE_EP0+MAX_PACKET_SIZE_EP1+MAX_PACKET_SIZE_EP2+MAX_PACKET_SIZE_EP3)
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#if (FIFO_USB_RAM_SIZE > 0x500)
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#error "FIFO dimensioning incorrect"
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#endif
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typedef struct
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{
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USBHAL *inst;
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void (USBHAL::*bus_reset)(void);
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void (USBHAL::*sof)(int frame);
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void (USBHAL::*connect_change)(unsigned int connected);
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void (USBHAL::*suspend_change)(unsigned int suspended);
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void (USBHAL::*ep0_setup)(void);
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void (USBHAL::*ep0_in)(void);
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void (USBHAL::*ep0_out)(void);
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void (USBHAL::*ep0_read)(void);
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bool (USBHAL::*ep_realise)(uint8_t endpoint, uint32_t maxPacket, uint32_t flags);
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bool (USBHAL::*epCallback[2*NB_ENDPOINT-2])(void);
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uint8_t epComplete[8];
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/* memorize dummy buffer used for reception */
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uint32_t pBufRx[MAXTRANSFER_SIZE>>2];
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uint32_t pBufRx0[MAX_PACKET_SIZE_EP0>>2];
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}USBHAL_Private_t;
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uint32_t HAL_PCDEx_GetTxFiFo(PCD_HandleTypeDef *hpcd, uint8_t fifo)
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{
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uint32_t len;
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if (fifo == 0) len = hpcd->Instance->DIEPTXF0_HNPTXFSIZ>>16;
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else
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len = hpcd->Instance->DIEPTXF[fifo - 1] >> 16;
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return len*4;
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}
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void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
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USBHAL_Private_t *priv=((USBHAL_Private_t *)(hpcd->pData));
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USBHAL *obj= priv->inst;
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USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
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uint32_t sofnum = (USBx_DEVICE->DSTS & USB_OTG_DSTS_FNSOF) >> 8;
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void (USBHAL::*func)(int frame) = priv->sof;
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/* fix me call with same frame number */
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(obj->*func)(sofnum);
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}
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USBHAL * USBHAL::instance;
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USBHAL::USBHAL(void) {
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/* init parameter */
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USBHAL_Private_t *HALPriv = new(USBHAL_Private_t);
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/* initialized all field of init including 0 field */
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/* constructor does not fill with zero */
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hpcd.Instance = USB_OTG_FS;
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/* initialized all field of init including 0 field */
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/* constructor does not fill with zero */
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memset(&hpcd.Init, 0, sizeof(hpcd.Init));
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hpcd.Init.dev_endpoints = NB_ENDPOINT;
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hpcd.Init.ep0_mps = MAX_PACKET_SIZE_EP0;
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hpcd.Init.phy_itface = PCD_PHY_EMBEDDED;
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hpcd.Init.Sof_enable = 1;
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hpcd.Init.speed = PCD_SPEED_FULL;
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/* pass instance for usage inside call back */
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HALPriv->inst = this;
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HALPriv->bus_reset = &USBHAL::busReset;
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HALPriv->suspend_change = &USBHAL::suspendStateChanged;
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HALPriv->connect_change = &USBHAL::connectStateChanged;
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HALPriv->sof = &USBHAL::SOF;
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HALPriv->ep0_setup = &USBHAL::EP0setupCallback;
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HALPriv->ep_realise = &USBHAL::realiseEndpoint;
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HALPriv->ep0_in = &USBHAL::EP0in;
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HALPriv->ep0_out = &USBHAL::EP0out;
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HALPriv->ep0_read = &USBHAL::EP0read;
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hpcd.pData = (void*)HALPriv;
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HALPriv->epCallback[0] = &USBHAL::EP1_OUT_callback;
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HALPriv->epCallback[1] = &USBHAL::EP1_IN_callback;
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HALPriv->epCallback[2] = &USBHAL::EP2_OUT_callback;
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HALPriv->epCallback[3] = &USBHAL::EP2_IN_callback;
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HALPriv->epCallback[4] = &USBHAL::EP3_OUT_callback;
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HALPriv->epCallback[5] = &USBHAL::EP3_IN_callback;
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instance = this;
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__HAL_RCC_PWR_CLK_ENABLE();
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HAL_PWREx_EnableVddUSB();
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/* Configure USB VBUS GPIO */
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__HAL_RCC_GPIOC_CLK_ENABLE();
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/* Configure USB FS GPIOs */
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/* Configure DM DP Pins */
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pin_function(PA_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
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pin_function(PA_12, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
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/* Configure VBUS Pin */
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pin_function(PC_11, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF10_OTG_FS));
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__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
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hpcd.State = HAL_PCD_STATE_RESET;
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HAL_PCD_Init(&hpcd);
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/* 1.25kbytes */
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/* min value 16 (= 16 x 4 bytes) */
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/* max value 256 (= 1K bytes ) */
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/* maximum sum is 0x140 */
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HAL_PCDEx_SetRxFiFo(&hpcd, (MAXTRANSFER_SIZE/4));
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/* bulk/int 64 bytes in FS */
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HAL_PCDEx_SetTxFiFo(&hpcd, 0, (MAX_PACKET_SIZE_EP0/4)+1);
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/* bulk/int bytes in FS */
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HAL_PCDEx_SetTxFiFo(&hpcd, 1, (MAX_PACKET_SIZE_EP1/4)+1);
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HAL_PCDEx_SetTxFiFo(&hpcd, 2, (MAX_PACKET_SIZE_EP2/4));
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/* ISOchronous */
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HAL_PCDEx_SetTxFiFo(&hpcd, 3, (MAX_PACKET_SIZE_EP3/4));
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NVIC_SetVector(USBHAL_IRQn,(uint32_t)&_usbisr);
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NVIC_SetPriority( USBHAL_IRQn, 1);
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HAL_PCD_Start(&hpcd);
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}
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#endif

‎targets/TARGET_STM/TARGET_STM32L4/TARGET_DISCO_L475VG_IOT01A/USBHAL_STM_TARGET.h

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/* Copyright (c) 2016 mbed.org, MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
4+
* and associated documentation files (the "Software"), to deal in the Software without
5+
* restriction, including without limitation the rights to use, copy, modify, merge, publish,
6+
* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
7+
* Software is furnished to do so, subject to the following conditions:
8+
*
9+
* The above copyright notice and this permission notice shall be included in all copies or
10+
* substantial portions of the Software.
11+
*
12+
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
13+
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
14+
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
15+
* DAMAGES OR OTHER 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 THE SOFTWARE.
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*/
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#include "USBHAL_STM32L475VG.h"

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