Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / drivers / usb / serial / ftdi_sio.c

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 2dec500135282af0c668d58974c7d190519cf1b7..f349a3629d00cc15874f6d29190670084c72eeb4 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -75,6 +75,7 @@ struct ftdi_private {
        unsigned long last_dtr_rts;     /* saved modem control outputs */
        wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
        char prev_status, diff_status;        /* Used for TIOCMIWAIT */
+       char transmit_empty;    /* If transmitter is empty or not */
        struct usb_serial_port *port;
        __u16 interface;        /* FT2232C, FT2232H or FT4232H port interface
                                   (0 for FT232/245) */
@@ -99,6 +100,7 @@ struct ftdi_sio_quirk {
 static int   ftdi_jtag_probe(struct usb_serial *serial);
 static int   ftdi_mtxorb_hack_setup(struct usb_serial *serial);
 static int   ftdi_NDI_device_setup(struct usb_serial *serial);
+static int   ftdi_stmclite_probe(struct usb_serial *serial);
 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
 
@@ -122,6 +124,10 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
        .port_probe = ftdi_HE_TIRA1_setup,
 };
 
+static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
+       .probe  = ftdi_stmclite_probe,
+};
+
 /*
  * The 8U232AM has the same API as the sio except for:
  * - it can support MUCH higher baudrates; up to:
@@ -615,6 +621,7 @@ static struct usb_device_id id_table_combined [] = {
        { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
        { USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
+       { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
        { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
        { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
        { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
@@ -675,7 +682,17 @@ static struct usb_device_id id_table_combined [] = {
        { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
-       { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) },
+       { USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
@@ -799,6 +816,8 @@ static struct usb_device_id id_table_combined [] = {
        { USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
        { USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
                .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+       { USB_DEVICE(ST_VID, ST_STMCLT1030_PID),
+               .driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
        { },                                    /* Optional parameter entry */
        { }                                     /* Terminating entry */
 };
@@ -1323,6 +1342,23 @@ check_and_exit:
        return 0;
 }
 
+static int get_lsr_info(struct usb_serial_port *port,
+                       struct serial_struct __user *retinfo)
+{
+       struct ftdi_private *priv = usb_get_serial_port_data(port);
+       unsigned int result = 0;
+
+       if (!retinfo)
+               return -EFAULT;
+
+       if (priv->transmit_empty)
+               result = TIOCSER_TEMT;
+
+       if (copy_to_user(retinfo, &result, sizeof(unsigned int)))
+               return -EFAULT;
+       return 0;
+}
+
 
 /* Determine type of FTDI chip based on USB config and descriptor. */
 static void ftdi_determine_type(struct usb_serial_port *port)
@@ -1680,6 +1716,25 @@ static int ftdi_jtag_probe(struct usb_serial *serial)
        return 0;
 }
 
+/*
+ * First and second port on STMCLiteadaptors is reserved for JTAG interface
+ * and the forth port for pio
+ */
+static int ftdi_stmclite_probe(struct usb_serial *serial)
+{
+       struct usb_device *udev = serial->dev;
+       struct usb_interface *interface = serial->interface;
+
+       dbg("%s", __func__);
+
+       if (interface == udev->actconfig->interface[2])
+               return 0;
+
+       dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
+
+       return -ENODEV;
+}
+
 /*
  * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
  * We have to correct it if we want to read from it.
@@ -1872,6 +1927,12 @@ static int ftdi_process_packet(struct tty_struct *tty,
                        tty_insert_flip_char(tty, 0, TTY_OVERRUN);
        }
 
+       /* save if the transmitter is empty or not */
+       if (packet[1] & FTDI_RS_TEMT)
+               priv->transmit_empty = 1;
+       else
+               priv->transmit_empty = 0;
+
        len -= 2;
        if (!len)
                return 0;       /* status only */
@@ -2235,6 +2296,9 @@ static int ftdi_ioctl(struct tty_struct *tty, struct file *file,
                        }
                }
                return 0;
+       case TIOCSERGETLSR:
+               return get_lsr_info(port, (struct serial_struct __user *)arg);
+               break;
        default:
                break;
        }