diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/ssu100.c | 56 |
1 files changed, 8 insertions, 48 deletions
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index f5312dd3331..8359ec79895 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -79,7 +79,6 @@ struct ssu100_port_private { u8 shadowLSR; u8 shadowMSR; wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - unsigned short max_packet_size; struct async_icount icount; }; @@ -464,36 +463,6 @@ static int ssu100_ioctl(struct tty_struct *tty, struct file *file, return -ENOIOCTLCMD; } -static void ssu100_set_max_packet_size(struct usb_serial_port *port) -{ - struct ssu100_port_private *priv = usb_get_serial_port_data(port); - struct usb_serial *serial = port->serial; - struct usb_device *udev = serial->dev; - - struct usb_interface *interface = serial->interface; - struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; - - unsigned num_endpoints; - int i; - unsigned long flags; - - num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; - dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); - - for (i = 0; i < num_endpoints; i++) { - dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, - interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); - ep_desc = &interface->cur_altsetting->endpoint[i].desc; - } - - /* set max packet size based on descriptor */ - spin_lock_irqsave(&priv->status_lock, flags); - priv->max_packet_size = ep_desc->wMaxPacketSize; - spin_unlock_irqrestore(&priv->status_lock, flags); - - dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); -} - static int ssu100_attach(struct usb_serial *serial) { struct ssu100_port_private *priv; @@ -511,7 +480,6 @@ static int ssu100_attach(struct usb_serial *serial) spin_lock_init(&priv->status_lock); init_waitqueue_head(&priv->delta_msr_wait); usb_set_serial_port_data(port, priv); - ssu100_set_max_packet_size(port); return ssu100_initdevice(serial->dev); } @@ -641,13 +609,14 @@ static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr, } -static int ssu100_process_packet(struct tty_struct *tty, - struct usb_serial_port *port, - struct ssu100_port_private *priv, - char *packet, int len) +static int ssu100_process_packet(struct urb *urb, + struct tty_struct *tty) { - int i; + struct usb_serial_port *port = urb->context; + char *packet = (char *)urb->transfer_buffer; char flag = TTY_NORMAL; + u32 len = urb->actual_length; + int i; char *ch; dbg("%s - port %d", __func__, port->number); @@ -685,12 +654,8 @@ static int ssu100_process_packet(struct tty_struct *tty, static void ssu100_process_read_urb(struct urb *urb) { struct usb_serial_port *port = urb->context; - struct ssu100_port_private *priv = usb_get_serial_port_data(port); - char *data = (char *)urb->transfer_buffer; struct tty_struct *tty; - int count = 0; - int i; - int len; + int count; dbg("%s", __func__); @@ -698,10 +663,7 @@ static void ssu100_process_read_urb(struct urb *urb) if (!tty) return; - for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { - len = min_t(int, urb->actual_length - i, priv->max_packet_size); - count += ssu100_process_packet(tty, port, priv, &data[i], len); - } + count = ssu100_process_packet(urb, tty); if (count) tty_flip_buffer_push(tty); @@ -717,8 +679,6 @@ static struct usb_serial_driver ssu100_device = { .id_table = id_table, .usb_driver = &ssu100_driver, .num_ports = 1, - .bulk_in_size = 256, - .bulk_out_size = 256, .open = ssu100_open, .close = ssu100_close, .attach = ssu100_attach, |