diff options
Diffstat (limited to 'drivers/usb/serial/ti_usb_3410_5052.c')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 40 |
1 files changed, 15 insertions, 25 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 2620bf6fe5e1..0a64bac306ee 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -50,11 +50,10 @@ #define TI_TRANSFER_TIMEOUT 2 -#define TI_DEFAULT_LOW_LATENCY 0 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ /* supported setserial flags */ -#define TI_SET_SERIAL_FLAGS (ASYNC_LOW_LATENCY) +#define TI_SET_SERIAL_FLAGS 0 /* read urb states */ #define TI_READ_URB_RUNNING 0 @@ -161,7 +160,6 @@ static int ti_buf_get(struct circ_buf *cb, char *buf, int count); /* module parameters */ static int debug; -static int low_latency = TI_DEFAULT_LOW_LATENCY; static int closing_wait = TI_DEFAULT_CLOSING_WAIT; static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; static unsigned int vendor_3410_count; @@ -296,10 +294,6 @@ MODULE_FIRMWARE("mts_edge.fw"); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); -module_param(low_latency, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(low_latency, - "TTY low_latency flag, 0=off, 1=on, default is off"); - module_param(closing_wait, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain in close, in .01 secs, default is 4000"); @@ -448,7 +442,6 @@ static int ti_startup(struct usb_serial *serial) spin_lock_init(&tport->tp_lock); tport->tp_uart_base_addr = (i == 0 ? TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); - tport->tp_flags = low_latency ? ASYNC_LOW_LATENCY : 0; tport->tp_closing_wait = closing_wait; init_waitqueue_head(&tport->tp_msr_wait); init_waitqueue_head(&tport->tp_write_wait); @@ -528,10 +521,6 @@ static int ti_open(struct tty_struct *tty, if (mutex_lock_interruptible(&tdev->td_open_close_lock)) return -ERESTARTSYS; - if (tty) - tty->low_latency = - (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; - port_number = port->number - port->serial->minor; memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); @@ -1215,20 +1204,22 @@ static void ti_bulk_in_callback(struct urb *urb) } tty = tty_port_tty_get(&port->port); - if (tty && urb->actual_length) { - usb_serial_debug_data(debug, dev, __func__, - urb->actual_length, urb->transfer_buffer); - - if (!tport->tp_is_open) - dbg("%s - port closed, dropping data", __func__); - else - ti_recv(&urb->dev->dev, tty, + if (tty) { + if (urb->actual_length) { + usb_serial_debug_data(debug, dev, __func__, + urb->actual_length, urb->transfer_buffer); + + if (!tport->tp_is_open) + dbg("%s - port closed, dropping data", + __func__); + else + ti_recv(&urb->dev->dev, tty, urb->transfer_buffer, urb->actual_length); - - spin_lock(&tport->tp_lock); - tport->tp_icount.rx += urb->actual_length; - spin_unlock(&tport->tp_lock); + spin_lock(&tport->tp_lock); + tport->tp_icount.rx += urb->actual_length; + spin_unlock(&tport->tp_lock); + } tty_kref_put(tty); } @@ -1452,7 +1443,6 @@ static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, return -EFAULT; tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; - tty->low_latency = (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; tport->tp_closing_wait = new_serial.closing_wait; return 0; |