diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-25 12:40:57 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-25 12:40:57 -0700 |
commit | 37b05b17985ecc43a33e2a8cbdaa220115de4703 (patch) | |
tree | 8213bf790182711677018ed322a9ccf61470242e /drivers/usb/serial/safe_serial.c | |
parent | ce1d5b23a8d1e19866ab82bdec0dc41fde5273d8 (diff) | |
parent | 4953d141dc5db748475001cfbfdcc42e66cf900e (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (120 commits)
usb: don't update devnum for wusb devices
wusb: make ep0_reinit available for modules
wusb: devices dont use a set address
wusb: teach choose_address() about wireless devices
wusb: add link wusb-usb device
wusb: add authenticathed bit to usb_dev
USB: remove unnecessary type casting of urb->context
usb serial: more fixes and groundwork for tty changes
USB: replace remaining __FUNCTION__ occurrences
USB: usbfs: export the URB_NO_INTERRUPT flag to userspace
USB: fix compile problems in ehci-hcd
USB: ehci: qh_completions cleanup and bugfix
USB: cdc-acm: signedness fix
USB: add documentation about callbacks
USB: don't explicitly reenable root-hub status interrupts
USB: OHCI: turn off RD when remote wakeup is disabled
USB: HCDs use the do_remote_wakeup flag
USB: g_file_storage: ignore bulk-out data after invalid CBW
USB: serial: remove endpoints setting checks from core and header
USB: serial: remove unneeded number endpoints settings
...
Diffstat (limited to 'drivers/usb/serial/safe_serial.c')
-rw-r--r-- | drivers/usb/serial/safe_serial.c | 60 |
1 files changed, 26 insertions, 34 deletions
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 4e6dcc199be9..94bddf06ea4f 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -195,18 +195,17 @@ static __u16 __inline__ fcs_compute10 (unsigned char *sp, int len, __u16 fcs) static void safe_read_bulk_callback (struct urb *urb) { - struct usb_serial_port *port = (struct usb_serial_port *) urb->context; + struct usb_serial_port *port = urb->context; unsigned char *data = urb->transfer_buffer; unsigned char length = urb->actual_length; - int i; int result; int status = urb->status; - dbg ("%s", __FUNCTION__); + dbg ("%s", __func__); if (status) { dbg("%s - nonzero read bulk status received: %d", - __FUNCTION__, status); + __func__, status); return; } @@ -227,28 +226,20 @@ static void safe_read_bulk_callback (struct urb *urb) if (safe) { __u16 fcs; if (!(fcs = fcs_compute10 (data, length, CRC10_INITFCS))) { - int actual_length = data[length - 2] >> 2; - if (actual_length <= (length - 2)) { - - info ("%s - actual: %d", __FUNCTION__, actual_length); - - for (i = 0; i < actual_length; i++) { - tty_insert_flip_char (port->tty, data[i], 0); - } + info ("%s - actual: %d", __func__, actual_length); + tty_insert_flip_string(port->tty, data, actual_length); tty_flip_buffer_push (port->tty); } else { - err ("%s - inconsistent lengths %d:%d", __FUNCTION__, + err ("%s - inconsistent lengths %d:%d", __func__, actual_length, length); } } else { - err ("%s - bad CRC %x", __FUNCTION__, fcs); + err ("%s - bad CRC %x", __func__, fcs); } } else { - for (i = 0; i < length; i++) { - tty_insert_flip_char (port->tty, data[i], 0); - } + tty_insert_flip_string(port->tty, data, length); tty_flip_buffer_push (port->tty); } @@ -259,7 +250,8 @@ static void safe_read_bulk_callback (struct urb *urb) safe_read_bulk_callback, port); if ((result = usb_submit_urb (urb, GFP_ATOMIC))) { - err ("%s - failed resubmitting read urb, error %d", __FUNCTION__, result); + err ("%s - failed resubmitting read urb, error %d", __func__, result); + /* FIXME: Need a mechanism to retry later if this happens */ } } @@ -274,25 +266,25 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i count); if (!port->write_urb) { - dbg ("%s - write urb NULL", __FUNCTION__); - return (0); + dbg ("%s - write urb NULL", __func__); + return 0; } dbg ("safe_write write_urb: %d transfer_buffer_length", port->write_urb->transfer_buffer_length); if (!port->write_urb->transfer_buffer_length) { - dbg ("%s - write urb transfer_buffer_length zero", __FUNCTION__); - return (0); + dbg ("%s - write urb transfer_buffer_length zero", __func__); + return 0; } if (count == 0) { - dbg ("%s - write request of 0 bytes", __FUNCTION__); - return (0); + dbg ("%s - write request of 0 bytes", __func__); + return 0; } spin_lock_bh(&port->lock); if (port->write_urb_busy) { spin_unlock_bh(&port->lock); - dbg("%s - already writing", __FUNCTION__); + dbg("%s - already writing", __func__); return 0; } port->write_urb_busy = 1; @@ -332,7 +324,7 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i port->write_urb->transfer_buffer_length = count; } - usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, port->write_urb->transfer_buffer); + usb_serial_debug_data(debug, &port->dev, __func__, count, port->write_urb->transfer_buffer); #ifdef ECHO_TX { int i; @@ -349,28 +341,31 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i port->write_urb->dev = port->serial->dev; if ((result = usb_submit_urb (port->write_urb, GFP_KERNEL))) { port->write_urb_busy = 0; - err ("%s - failed submitting write urb, error %d", __FUNCTION__, result); + err ("%s - failed submitting write urb, error %d", __func__, result); return 0; } - dbg ("%s urb: %p submitted", __FUNCTION__, port->write_urb); + dbg ("%s urb: %p submitted", __func__, port->write_urb); return (count); } static int safe_write_room (struct usb_serial_port *port) { - int room = 0; // Default: no room + int room = 0; /* Default: no room */ + unsigned long flags; - dbg ("%s", __FUNCTION__); + dbg ("%s", __func__); + spin_lock_irqsave(&port->lock, flags); if (port->write_urb_busy) room = port->bulk_out_size - (safe ? 2 : 0); + spin_unlock_irqrestore(&port->lock, flags); if (room) { dbg ("safe_write_room returns %d", room); } - return (room); + return room; } static int safe_startup (struct usb_serial *serial) @@ -394,9 +389,6 @@ static struct usb_serial_driver safe_device = { }, .id_table = id_table, .usb_driver = &safe_driver, - .num_interrupt_in = NUM_DONT_CARE, - .num_bulk_in = NUM_DONT_CARE, - .num_bulk_out = NUM_DONT_CARE, .num_ports = 1, .write = safe_write, .write_room = safe_write_room, |