diff options
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 1633a0fd48e8..95a1805b064f 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -342,6 +342,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) }, { USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) }, { USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) }, { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) }, { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) }, { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) }, @@ -879,6 +880,7 @@ static __u32 get_ftdi_divisor(struct usb_serial_port * port) break; case FT232BM: /* FT232BM chip */ case FT2232C: /* FT2232C chip */ + case FT232RL: if (baud <= 3000000) { div_value = ftdi_232bm_baud_to_divisor(baud); } else { @@ -1021,9 +1023,12 @@ static void ftdi_determine_type(struct usb_serial_port *port) /* (It might be a BM because of the iSerialNumber bug, * but it will still work as an AM device.) */ priv->chip_type = FT8U232AM; - } else { + } else if (version < 0x600) { /* Assume its an FT232BM (or FT245BM) */ priv->chip_type = FT232BM; + } else { + /* Assume its an FT232R */ + priv->chip_type = FT232RL; } info("Detected %s", ftdi_chip_name[priv->chip_type]); } @@ -1429,6 +1434,7 @@ static int ftdi_write (struct usb_serial_port *port, dbg("%s - write limit hit\n", __FUNCTION__); return 0; } + priv->tx_outstanding_urbs++; spin_unlock_irqrestore(&priv->tx_lock, flags); data_offset = priv->write_offset; @@ -1446,14 +1452,15 @@ static int ftdi_write (struct usb_serial_port *port, buffer = kmalloc (transfer_size, GFP_ATOMIC); if (!buffer) { err("%s ran out of kernel memory for urb ...", __FUNCTION__); - return -ENOMEM; + count = -ENOMEM; + goto error_no_buffer; } urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) { err("%s - no more free urbs", __FUNCTION__); - kfree (buffer); - return -ENOMEM; + count = -ENOMEM; + goto error_no_urb; } /* Copy data */ @@ -1495,10 +1502,9 @@ static int ftdi_write (struct usb_serial_port *port, if (status) { err("%s - failed submitting write urb, error %d", __FUNCTION__, status); count = status; - kfree (buffer); + goto error; } else { spin_lock_irqsave(&priv->tx_lock, flags); - ++priv->tx_outstanding_urbs; priv->tx_outstanding_bytes += count; priv->tx_bytes += count; spin_unlock_irqrestore(&priv->tx_lock, flags); @@ -1506,10 +1512,19 @@ static int ftdi_write (struct usb_serial_port *port, /* we are done with this urb, so let the host driver * really free it when it is finished with it */ - usb_free_urb (urb); + usb_free_urb(urb); dbg("%s write returning: %d", __FUNCTION__, count); return count; +error: + usb_free_urb(urb); +error_no_urb: + kfree (buffer); +error_no_buffer: + spin_lock_irqsave(&priv->tx_lock, flags); + priv->tx_outstanding_urbs--; + spin_unlock_irqrestore(&priv->tx_lock, flags); + return count; } /* ftdi_write */ |