int32_t PIOS_USB_Init(uint32_t * usb_id, const struct pios_usb_cfg * cfg)
{
PIOS_Assert(usb_id);
PIOS_Assert(cfg);
struct pios_usb_dev * usb_dev;
usb_dev = (struct pios_usb_dev *) PIOS_USB_alloc();
if (!usb_dev) goto out_fail;
/* Bind the configuration to the device instance */
usb_dev->cfg = cfg;
PIOS_USB_Reenumerate();
/*
* This is a horrible hack to make this available to
* the interrupt callbacks. This should go away ASAP.
*/
pios_usb_com_id = (uint32_t) usb_dev;
/* Enable the USB Interrupts */
NVIC_Init((NVIC_InitTypeDef*)&usb_dev->cfg->irq.init);
/* 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_50MHz;
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_14);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_14);
/* Configure VBUS sense pin */
if (usb_dev->cfg->vsense.gpio)
GPIO_Init(usb_dev->cfg->vsense.gpio, (GPIO_InitTypeDef*)&usb_dev->cfg->vsense.init);
/* Select USBCLK source */
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
/* Enable the USB clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
USB_Init();
USB_SIL_Init();
*usb_id = (uint32_t) usb_dev;
return 0; /* No error */
out_fail:
return(-1);
}
int32_t PIOS_USB_Init(uint32_t *usb_id, const struct pios_usb_cfg *cfg)
{
PIOS_Assert(usb_id);
PIOS_Assert(cfg);
struct pios_usb_dev *usb_dev;
usb_dev = (struct pios_usb_dev *)PIOS_USB_alloc();
if (!usb_dev) {
goto out_fail;
}
/* Bind the configuration to the device instance */
usb_dev->cfg = cfg;
PIOS_USB_Reenumerate();
/*
* This is a horrible hack to make this available to
* the interrupt callbacks. This should go away ASAP.
*/
pios_usb_com_id = (uint32_t)usb_dev;
/* Enable the USB Interrupts */
NVIC_Init(&usb_dev->cfg->irq.init);
/* Select USBCLK source */
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
/* Enable the USB clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
USB_Init();
USB_SIL_Init();
*usb_id = (uint32_t)usb_dev;
return 0; /* No error */
out_fail:
return -1;
}
