//---------------------------------------------------------------------------
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);
- }
-
- } //end of while
-
-
- 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;
- }
- }
+ 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);
+ }
- return HANDSHAKE_MAG_TIMEOUT_VALUE;
+ }
+
+ 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;
}
//---------------------------------------------------------------------------