[PATCH] TTY layer buffering revamp

[deliverable/linux.git] / drivers / usb / serial / ftdi_sio.c

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 61204bf7cd781e646fdbbed4d44af53cfac983b0..10bc1bf23b3514cb9bc50acad7c47f3dc3998583 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -471,10 +471,15 @@ static struct usb_device_id id_table_combined [] = {
        { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
+       { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
+       { USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
        { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
+       { USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
+       { USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
+       { USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
        { },                                    /* Optional parameter entry */
        { }                                     /* Terminating entry */
 };
@@ -486,9 +491,10 @@ static struct usb_driver ftdi_driver = {
        .probe =        usb_serial_probe,
        .disconnect =   usb_serial_disconnect,
        .id_table =     id_table_combined,
+       .no_dynamic_id =        1,
 };
 
-static char *ftdi_chip_name[] = {
+static const char *ftdi_chip_name[] = {
        [SIO] = "SIO",  /* the serial part of FT8U100AX */
        [FT8U232AM] = "FT8U232AM",
        [FT232BM] = "FT232BM",
@@ -1604,24 +1610,11 @@ static void ftdi_process_read (void *param)
                        length = 0;
                }
 
-               /* have to make sure we don't overflow the buffer
-                  with tty_insert_flip_char's */
-               if (tty->flip.count+length > TTY_FLIPBUF_SIZE) {
-                       tty_flip_buffer_push(tty);
-                       need_flip = 0;
-
-                       if (tty->flip.count != 0) {
-                               /* flip didn't work, this happens when ftdi_process_read() is
-                                * called from ftdi_unthrottle, because TTY_DONT_FLIP is set */
-                               dbg("%s - flip buffer push failed", __FUNCTION__);
-                               break;
-                       }
-               }
                if (priv->rx_flags & THROTTLED) {
                        dbg("%s - throttled", __FUNCTION__);
                        break;
                }
-               if (tty->ldisc.receive_room(tty)-tty->flip.count < length) {
+               if (tty_buffer_request_room(tty, length) < length) {
                        /* break out & wait for throttling/unthrottling to happen */
                        dbg("%s - receive room low", __FUNCTION__);
                        break;