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Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

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This commit is contained in:
Linus Torvalds 2005-06-09 10:44:48 -07:00
commit cf380ee730
4 changed files with 99 additions and 30 deletions
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4
drivers/block/ub.c
View file

@ -51,7 +51,7 @@
* This many LUNs per USB device.
* Every one of them takes a host, see UB_MAX_HOSTS.
*/
#define UB_MAX_LUNS 4
#define UB_MAX_LUNS 9
/*
*/
@ -2100,7 +2100,7 @@ static int ub_probe(struct usb_interface *intf,
nluns = rc;
break;
}
mdelay(100);
msleep(100);
}
for (i = 0; i < nluns; i++) {

2
drivers/pci/hotplug/cpci_hotplug_core.c
View file

@ -217,6 +217,8 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
kfree(slot->hotplug_slot->info);
kfree(slot->hotplug_slot->name);
kfree(slot->hotplug_slot);
if (slot->dev)
pci_dev_put(slot->dev);
kfree(slot);
}

5
drivers/pci/hotplug/cpci_hotplug_pci.c
View file

@ -315,9 +315,12 @@ int cpci_unconfigure_slot(struct slot* slot)
PCI_DEVFN(PCI_SLOT(slot->devfn), i));
if (dev) {
pci_remove_bus_device(dev);
slot->dev = NULL;
pci_dev_put(dev);
}
}
pci_dev_put(slot->dev);
slot->dev = NULL;
dbg("%s - exit", __FUNCTION__);
return 0;
}

118
drivers/usb/serial/ftdi_sio.c
View file

@ -264,7 +264,7 @@
/*
* Version Information
*/
#define DRIVER_VERSION "v1.4.1"
#define DRIVER_VERSION "v1.4.2"
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
#define DRIVER_DESC "USB FTDI Serial Converters Driver"
@ -687,6 +687,8 @@ struct ftdi_private {
char prev_status, diff_status; /* Used for TIOCMIWAIT */
__u8 rx_flags; /* receive state flags (throttling) */
spinlock_t rx_lock; /* spinlock for receive state */
struct work_struct rx_work;
int rx_processed;
__u16 interface; /* FT2232C port interface (0 for FT232/245) */
@ -717,7 +719,7 @@ static int ftdi_write_room (struct usb_serial_port *port);
static int ftdi_chars_in_buffer (struct usb_serial_port *port);
static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void ftdi_process_read (struct usb_serial_port *port);
static void ftdi_process_read (void *param);
static void ftdi_set_termios (struct usb_serial_port *port, struct termios * old);
static int ftdi_tiocmget (struct usb_serial_port *port, struct file *file);
static int ftdi_tiocmset (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
@ -1387,6 +1389,8 @@ static int ftdi_common_startup (struct usb_serial *serial)
port->read_urb->transfer_buffer_length = BUFSZ;
}
INIT_WORK(&priv->rx_work, ftdi_process_read, port);
/* Free port's existing write urb and transfer buffer. */
if (port->write_urb) {
usb_free_urb (port->write_urb);
@ -1617,6 +1621,7 @@ static int ftdi_open (struct usb_serial_port *port, struct file *filp)
spin_unlock_irqrestore(&priv->rx_lock, flags);
/* Start reading from the device */
priv->rx_processed = 0;
usb_fill_bulk_urb(port->read_urb, dev,
usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress),
port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length,
@ -1667,6 +1672,10 @@ static void ftdi_close (struct usb_serial_port *port, struct file *filp)
err("Error from RTS LOW urb");
}
} /* Note change no line if hupcl is off */
/* cancel any scheduled reading */
cancel_delayed_work(&priv->rx_work);
flush_scheduled_work();
/* shutdown our bulk read */
if (port->read_urb)
@ -1862,23 +1871,14 @@ static void ftdi_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
return;
}
/* If throttled, delay receive processing until unthrottled. */
spin_lock(&priv->rx_lock);
if (priv->rx_flags & THROTTLED) {
dbg("Deferring read urb processing until unthrottled");
priv->rx_flags |= ACTUALLY_THROTTLED;
spin_unlock(&priv->rx_lock);
return;
}
spin_unlock(&priv->rx_lock);
ftdi_process_read(port);
} /* ftdi_read_bulk_callback */
static void ftdi_process_read (struct usb_serial_port *port)
static void ftdi_process_read (void *param)
{ /* ftdi_process_read */
struct usb_serial_port *port = (struct usb_serial_port*)param;
struct urb *urb;
struct tty_struct *tty;
struct ftdi_private *priv;
@ -1889,6 +1889,7 @@ static void ftdi_process_read (struct usb_serial_port *port)
int result;
int need_flip;
int packet_offset;
unsigned long flags;
dbg("%s - port %d", __FUNCTION__, port->number);
@ -1915,12 +1916,18 @@ static void ftdi_process_read (struct usb_serial_port *port)
data = urb->transfer_buffer;
/* The first two bytes of every read packet are status */
if (urb->actual_length > 2) {
usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
if (priv->rx_processed) {
dbg("%s - already processed: %d bytes, %d remain", __FUNCTION__,
priv->rx_processed,
urb->actual_length - priv->rx_processed);
} else {
dbg("Status only: %03oo %03oo",data[0],data[1]);
}
/* The first two bytes of every read packet are status */
if (urb->actual_length > 2) {
usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
} else {
dbg("Status only: %03oo %03oo",data[0],data[1]);
}
}
/* TO DO -- check for hung up line and handle appropriately: */
@ -1929,8 +1936,12 @@ static void ftdi_process_read (struct usb_serial_port *port)
/* if CD is dropped and the line is not CLOCAL then we should hangup */
need_flip = 0;
for (packet_offset=0; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
for (packet_offset = priv->rx_processed; packet_offset < urb->actual_length; packet_offset += PKTSZ) {
int length;
/* Compare new line status to the old one, signal if different */
/* N.B. packet may be processed more than once, but differences
* are only processed once. */
if (priv != NULL) {
char new_status = data[packet_offset+0] & FTDI_STATUS_B0_MASK;
if (new_status != priv->prev_status) {
@ -1940,6 +1951,35 @@ static void ftdi_process_read (struct usb_serial_port *port)
}
}
length = min(PKTSZ, urb->actual_length-packet_offset)-2;
if (length < 0) {
err("%s - bad packet length: %d", __FUNCTION__, length+2);
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) {
/* break out & wait for throttling/unthrottling to happen */
dbg("%s - receive room low", __FUNCTION__);
break;
}
/* Handle errors and break */
error_flag = TTY_NORMAL;
/* Although the device uses a bitmask and hence can have multiple */
@ -1962,13 +2002,8 @@ static void ftdi_process_read (struct usb_serial_port *port)
error_flag = TTY_FRAME;
dbg("FRAMING error");
}
if (urb->actual_length > packet_offset + 2) {
for (i = 2; (i < PKTSZ) && ((i+packet_offset) < urb->actual_length); ++i) {
/* have to make sure we don't overflow the buffer
with tty_insert_flip_char's */
if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
tty_flip_buffer_push(tty);
}
if (length > 0) {
for (i = 2; i < length+2; i++) {
/* Note that the error flag is duplicated for
every character received since we don't know
which character it applied to */
@ -2005,6 +2040,35 @@ static void ftdi_process_read (struct usb_serial_port *port)
tty_flip_buffer_push(tty);
}
if (packet_offset < urb->actual_length) {
/* not completely processed - record progress */
priv->rx_processed = packet_offset;
dbg("%s - incomplete, %d bytes processed, %d remain",
__FUNCTION__, packet_offset,
urb->actual_length - packet_offset);
/* check if we were throttled while processing */
spin_lock_irqsave(&priv->rx_lock, flags);
if (priv->rx_flags & THROTTLED) {
priv->rx_flags |= ACTUALLY_THROTTLED;
spin_unlock_irqrestore(&priv->rx_lock, flags);
dbg("%s - deferring remainder until unthrottled",
__FUNCTION__);
return;
}
spin_unlock_irqrestore(&priv->rx_lock, flags);
/* if the port is closed stop trying to read */
if (port->open_count > 0){
/* delay processing of remainder */
schedule_delayed_work(&priv->rx_work, 1);
} else {
dbg("%s - port is closed", __FUNCTION__);
}
return;
}
/* urb is completely processed */
priv->rx_processed = 0;
/* if the port is closed stop trying to read */
if (port->open_count > 0){
/* Continue trying to always read */
@ -2444,7 +2508,7 @@ static void ftdi_unthrottle (struct usb_serial_port *port)
spin_unlock_irqrestore(&priv->rx_lock, flags);
if (actually_throttled)
ftdi_process_read(port);
schedule_work(&priv->rx_work);
}
static int __init ftdi_init (void)