Ejemplos de ft1000_read_register en C++ (Cpp)

Ejemplo n.º 1

//---------------------------------------------------------------------------
// Function:    check_usb_db
//
// Parameters:  struct ft1000_device  - device structure
//
// Returns:     0 - success
//
// Description: This function checks if the doorbell register is cleared
//
// Notes:
//
//---------------------------------------------------------------------------
static u32 check_usb_db (struct ft1000_device *ft1000dev)
{
	int loopcnt;
	u16 temp;
	u32 status;

	loopcnt = 0;

	while (loopcnt < 10) {
		status = ft1000_read_register(ft1000dev, &temp,
					       FT1000_REG_DOORBELL);
		DEBUG("check_usb_db: read FT1000_REG_DOORBELL value is %x\n",
		       temp);
		if (temp & 0x0080) {
			DEBUG("FT1000:Got checkusb doorbell\n");
			status = ft1000_write_register(ft1000dev, 0x0080,
						FT1000_REG_DOORBELL);
			status = ft1000_write_register(ft1000dev, 0x0100,
						FT1000_REG_DOORBELL);
			status = ft1000_write_register(ft1000dev,  0x8000,
						FT1000_REG_DOORBELL);
			break;
		} else {
			loopcnt++;
			msleep(10);
		}

	}

	loopcnt = 0;
	while (loopcnt < 20) {
		status = ft1000_read_register(ft1000dev, &temp,
					       FT1000_REG_DOORBELL);
		DEBUG("FT1000:check_usb_db:Doorbell = 0x%x\n", temp);
		if (temp & 0x8000) {
			loopcnt++;
			msleep(10);
		} else	{
			DEBUG("check_usb_db: door bell is cleared, return 0\n");
			return 0;
		}
	}

	return HANDSHAKE_MAG_TIMEOUT_VALUE;
}

Ejemplo n.º 2

Archivo: ft1000_download.c Proyecto: 383530895/linux

/* checks if the doorbell register is cleared */
static int check_usb_db(struct ft1000_usb *ft1000dev)
{
	int loopcnt;
	u16 temp;
	int status;

	loopcnt = 0;

	while (loopcnt < 10) {
		status = ft1000_read_register(ft1000dev, &temp,
					      FT1000_REG_DOORBELL);
		pr_debug("read FT1000_REG_DOORBELL value is %x\n", temp);
		if (temp & 0x0080) {
			pr_debug("Got checkusb doorbell\n");
			status = ft1000_write_register(ft1000dev, 0x0080,
						       FT1000_REG_DOORBELL);
			status = ft1000_write_register(ft1000dev, 0x0100,
						       FT1000_REG_DOORBELL);
			status = ft1000_write_register(ft1000dev,  0x8000,
						       FT1000_REG_DOORBELL);
			break;
		}
		loopcnt++;
		msleep(10);

	}

	loopcnt = 0;
	while (loopcnt < 20) {
		status = ft1000_read_register(ft1000dev, &temp,
					      FT1000_REG_DOORBELL);
		pr_debug("Doorbell = 0x%x\n", temp);
		if (temp & 0x8000) {
			loopcnt++;
			msleep(10);
		} else	{
			pr_debug("door bell is cleared, return 0\n");
			return 0;
		}
	}

	return -1;
}