flipperzero-firmware/firmware/targets/f7/usb-glue/usbd_conf.c

#include "stm32wbxx.h"
#include "stm32wbxx_hal.h"

#include <furi-hal-vcp_i.h>

#include "usbd_def.h"
#include "usbd_core.h"
#include "usbd_cdc.h"

PCD_HandleTypeDef hpcd_USB_FS;
void Error_Handler(void);

static USBD_StatusTypeDef USBD_Get_USB_Status(HAL_StatusTypeDef hal_status);

static void SystemClockConfig_Resume(void);

void HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle) {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(pcdHandle->Instance==USB) {
        __HAL_RCC_GPIOA_CLK_ENABLE();
        /**USB GPIO Configuration
        PA11     ------> USB_DM
        PA12     ------> USB_DP 
        */
        GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
        GPIO_InitStruct.Alternate = GPIO_AF10_USB;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* Peripheral clock enable */
        __HAL_RCC_USB_CLK_ENABLE();

        /* Peripheral interrupt init */
        HAL_NVIC_SetPriority(USB_LP_IRQn, 5, 0);
        HAL_NVIC_EnableIRQ(USB_LP_IRQn);
    }
}

void HAL_PCD_MspDeInit(PCD_HandleTypeDef* pcdHandle) {
    if(pcdHandle->Instance==USB) {
        /* Peripheral clock disable */
        __HAL_RCC_USB_CLK_DISABLE();

        /**USB GPIO Configuration
        PA11     ------> USB_DM
        PA12     ------> USB_DP
        */
        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11|GPIO_PIN_12);

        /* Peripheral interrupt Deinit*/
        HAL_NVIC_DisableIRQ(USB_LP_IRQn);
    }
}

/** Setup stage callback
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd) {
    USBD_LL_SetupStage((USBD_HandleTypeDef*)hpcd->pData, (uint8_t *)hpcd->Setup);
}

/** Data Out stage callback.
 * @param  hpcd: PCD handle
 * @param  epnum: Endpoint number
 * @retval None
 */
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
    USBD_LL_DataOutStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}

/** Data In stage callback.
 * @param  hpcd: PCD handle
 * @param  epnum: Endpoint number
 * @retval None
 */
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
    USBD_LL_DataInStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
}

/** SOF callback.
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
    USBD_LL_SOF((USBD_HandleTypeDef*)hpcd->pData);
}

/** Reset callback.
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd) {
    USBD_SpeedTypeDef speed = USBD_SPEED_FULL;

    if ( hpcd->Init.speed != PCD_SPEED_FULL) {
        Error_Handler();
    }

    /* Set Speed. */
    USBD_LL_SetSpeed((USBD_HandleTypeDef*)hpcd->pData, speed);

    /* Reset Device. */
    USBD_LL_Reset((USBD_HandleTypeDef*)hpcd->pData);
}

/** Suspend callback.
 * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd) {
    USBD_LL_Suspend((USBD_HandleTypeDef*)hpcd->pData);

    furi_hal_vcp_on_usb_suspend();
    
    if (hpcd->Init.low_power_enable) {
        /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register. */
        SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
    }
}

/** Resume callback.
 * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd) {
    if (hpcd->Init.low_power_enable) {
        /* Reset SLEEPDEEP bit of Cortex System Control Register. */
        SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
        SystemClockConfig_Resume();
    }

    furi_hal_vcp_on_usb_resume();

    USBD_LL_Resume((USBD_HandleTypeDef*)hpcd->pData);
}

/** ISOOUTIncomplete callback.
 * @param  hpcd: PCD handle
 * @param  epnum: Endpoint number
 * @retval None
 */
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
    USBD_LL_IsoOUTIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
}

/** ISOINIncomplete callback.
 * @param  hpcd: PCD handle
 * @param  epnum: Endpoint number
 * @retval None
 */
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
    USBD_LL_IsoINIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
}

/** Connect callback.
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd) {
    USBD_LL_DevConnected((USBD_HandleTypeDef*)hpcd->pData);
}

/** Disconnect callback.
 * @param  hpcd: PCD handle
 * @retval None
 */
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd) {
    USBD_LL_DevDisconnected((USBD_HandleTypeDef*)hpcd->pData);
}

/** Initializes the low level portion of the device driver.
 * @param  pdev: Device handle
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev) {
    /* Init USB Ip. */
    hpcd_USB_FS.pData = pdev;

    /* Link the driver to the stack. */
    pdev->pData = &hpcd_USB_FS;

    /* Enable USB power on Pwrctrl CR2 register. */
    HAL_PWREx_EnableVddUSB();

    hpcd_USB_FS.Instance = USB;
    hpcd_USB_FS.Init.dev_endpoints = 8;
    hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
    hpcd_USB_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
    hpcd_USB_FS.Init.Sof_enable = DISABLE;
    hpcd_USB_FS.Init.low_power_enable = DISABLE;
    hpcd_USB_FS.Init.lpm_enable = DISABLE;
    hpcd_USB_FS.Init.battery_charging_enable = DISABLE;

    if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK) {
        Error_Handler();
    }

    HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x00 , PCD_SNG_BUF, 0x18);
    HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x80 , PCD_SNG_BUF, 0x58);

    HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x81 , PCD_SNG_BUF, 0xC0);
    HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x01 , PCD_SNG_BUF, 0x110);
    HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x82 , PCD_SNG_BUF, 0x100);

    return USBD_OK;
}

/** De-Initializes the low level portion of the device driver.
 * @param  pdev: Device handle
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
{
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_DeInit(pdev->pData);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Starts the low level portion of the device driver.
 * @param  pdev: Device handle
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_Start(pdev->pData);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Stops the low level portion of the device driver.
 * @param  pdev: Device handle
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_Stop(pdev->pData);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Opens an endpoint of the low level driver.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @param  ep_type: Endpoint type
 * @param  ep_mps: Endpoint max packet size
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t ep_type, uint16_t ep_mps) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_Open(pdev->pData, ep_addr, ep_mps, ep_type);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Closes an endpoint of the low level driver.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_Close(pdev->pData, ep_addr);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/**
 * @brief  Flushes an endpoint of the Low Level Driver.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_Flush(pdev->pData, ep_addr);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Sets a Stall condition on an endpoint of the Low Level Driver.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_SetStall(pdev->pData, ep_addr);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Clears a Stall condition on an endpoint of the Low Level Driver.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Returns Stall condition.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval Stall (1: Yes, 0: No)
 */
uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    PCD_HandleTypeDef *hpcd = (PCD_HandleTypeDef*) pdev->pData;

    if((ep_addr & 0x80) == 0x80)
    {
        return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
    }
    else
    {
        return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
    }
}

/** Assigns a USB address to the device.
 * @param  pdev: Device handle
 * @param  dev_addr: Device address
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_SetAddress(pdev->pData, dev_addr);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Transmits data over an endpoint.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @param  pbuf: Pointer to data to be sent
 * @param  size: Data size
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint32_t size) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Prepares an endpoint for reception.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @param  pbuf: Pointer to data to be received
 * @param  size: Data size
 * @retval USBD status
 */
USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint32_t size) {
    HAL_StatusTypeDef hal_status = HAL_OK;
    USBD_StatusTypeDef usb_status = USBD_OK;

    hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);

    usb_status =  USBD_Get_USB_Status(hal_status);

    return usb_status;
}

/** Returns the last transfered packet size.
 * @param  pdev: Device handle
 * @param  ep_addr: Endpoint number
 * @retval Recived Data Size
 */
uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
    return HAL_PCD_EP_GetRxCount((PCD_HandleTypeDef*) pdev->pData, ep_addr);
}

/** Send LPM message to user layer
 * @param  hpcd: PCD handle
 * @param  msg: LPM message
 * @retval None
 */
void HAL_PCDEx_LPM_Callback(PCD_HandleTypeDef *hpcd, PCD_LPM_MsgTypeDef msg) {
    switch (msg) {
    case PCD_LPM_L0_ACTIVE:
        if (hpcd->Init.low_power_enable) {
            SystemClockConfig_Resume();
            /* Reset SLEEPDEEP bit of Cortex System Control Register. */
            SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
        }
        USBD_LL_Resume(hpcd->pData);
        break;

    case PCD_LPM_L1_ACTIVE:
        USBD_LL_Suspend(hpcd->pData);

        /* Enter in STOP mode. */
        if (hpcd->Init.low_power_enable) {
            /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register. */
            SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
        }
        break;
    }
}

/** Delays routine for the USB Device Library.
 * @param  Delay: Delay in ms
 * @retval None
 */
void USBD_LL_Delay(uint32_t Delay) {
    HAL_Delay(Delay);
}

/** Static single allocation.
 * @param  size: Size of allocated memory
 * @retval None
 */
void *USBD_static_malloc(uint32_t size) {
    static uint32_t mem[(sizeof(USBD_CDC_HandleTypeDef)/4)+1];/* On 32-bit boundary */
    return mem;
}

/** Dummy memory free
 * @param  p: Pointer to allocated  memory address
 * @retval None
 */
void USBD_static_free(void *p) {
}

/** Configures system clock after wake-up from USB resume callBack:
 * enable HSI, PLL and select PLL as system clock source.
 * @retval None
 */
static void SystemClockConfig_Resume(void) {
}

/** Retuns the USB status depending on the HAL status:
 * @param  hal_status: HAL status
 * @retval USB status
 */
USBD_StatusTypeDef USBD_Get_USB_Status(HAL_StatusTypeDef hal_status) {
    USBD_StatusTypeDef usb_status = USBD_OK;

    switch (hal_status)
    {
        case HAL_OK :
            usb_status = USBD_OK;
        break;
        case HAL_ERROR :
            usb_status = USBD_FAIL;
        break;
        case HAL_BUSY :
            usb_status = USBD_BUSY;
        break;
        case HAL_TIMEOUT :
            usb_status = USBD_FAIL;
        break;
        default :
            usb_status = USBD_FAIL;
        break;
    }
    return usb_status;
}