void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_id;
bool valid = PIOS_USB_validate(usb_dev);
PIOS_Assert(valid);
#define FORCE_DISABLE_USB_IRQ 1
#if FORCE_DISABLE_USB_IRQ
/* Make sure we disable the USB interrupt since it may be left on by bootloader */
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure = usb_dev->cfg->irq.init;
NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;
NVIC_Init(&NVIC_InitStructure);
#endif
/* Configure USB D-/D+ (DM/DP) pins */
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_OTG1_FS);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_OTG1_FS);
/* Configure VBUS sense pin */
GPIO_Init(usb_dev->cfg->vsense.gpio, (GPIO_InitTypeDef*)&usb_dev->cfg->vsense.init);
/* Enable USB OTG Clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, ENABLE);
}
/**
* This function returns the connection status of the USB HID interface
* \return 1: interface available
* \return 0: interface not available
* \note Applications shouldn't call this function directly, instead please use \ref PIOS_COM layer functions
*/
bool PIOS_USB_CheckAvailable(uint32_t id)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_com_id;
if (PIOS_USB_validate(usb_dev) != 0)
return false;
return PIOS_USB_CableConnected(id) && transfer_possible;
}
bool PIOS_USB_CableConnected(uint8_t id)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_com_id;
if (PIOS_USB_validate(usb_dev) != 0)
return false;
return sof_seen_since_reset;
}
void USB_OTG_BSP_EnableInterrupt(USB_OTG_CORE_HANDLE *pdev)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_id;
bool valid = PIOS_USB_validate(usb_dev);
PIOS_Assert(valid);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
NVIC_Init((NVIC_InitTypeDef*)&usb_dev->cfg->irq.init);
}
/**
* This function returns the connection status of the USB interface
* \return true: interface available
* \return false: interface not available
*/
bool PIOS_USB_CheckAvailable(uintptr_t id)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_id;
if (!PIOS_USB_validate(usb_dev))
return false;
if (usb_dev->cfg->vsense.gpio != NULL)
return GPIO_ReadInputDataBit(usb_dev->cfg->vsense.gpio, usb_dev->cfg->vsense.init.GPIO_Pin) == Bit_SET;
return transfer_possible == 1;
}
bool PIOS_USB_CableConnected(uintptr_t id)
{
struct pios_usb_dev * usb_dev = (struct pios_usb_dev *) pios_usb_com_id;
if (PIOS_USB_validate(usb_dev) != 0)
return false;
if (usb_dev->cfg->vsense.gpio != NULL)
return GPIO_ReadInputDataBit(usb_dev->cfg->vsense.gpio, usb_dev->cfg->vsense.init.GPIO_Pin) == Bit_SET;
return sof_seen_since_reset;
}
