/* Local Function Declarations */
-static void digi_wakeup_write( struct usb_serial_port *port );
+static void digi_wakeup_write(struct usb_serial_port *port);
static void digi_wakeup_write_lock(struct work_struct *work);
-static int digi_write_oob_command( struct usb_serial_port *port,
- unsigned char *buf, int count, int interruptible );
-static int digi_write_inb_command( struct usb_serial_port *port,
- unsigned char *buf, int count, unsigned long timeout );
-static int digi_set_modem_signals( struct usb_serial_port *port,
- unsigned int modem_signals, int interruptible );
-static int digi_transmit_idle( struct usb_serial_port *port,
- unsigned long timeout );
+static int digi_write_oob_command(struct usb_serial_port *port,
+ unsigned char *buf, int count, int interruptible);
+static int digi_write_inb_command(struct usb_serial_port *port,
+ unsigned char *buf, int count, unsigned long timeout);
+static int digi_set_modem_signals(struct usb_serial_port *port,
+ unsigned int modem_signals, int interruptible);
+static int digi_transmit_idle(struct usb_serial_port *port,
+ unsigned long timeout);
static void digi_rx_throttle (struct usb_serial_port *port);
static void digi_rx_unthrottle (struct usb_serial_port *port);
-static void digi_set_termios( struct usb_serial_port *port,
- struct ktermios *old_termios );
-static void digi_break_ctl( struct usb_serial_port *port, int break_state );
-static int digi_ioctl( struct usb_serial_port *port, struct file *file,
- unsigned int cmd, unsigned long arg );
-static int digi_tiocmget( struct usb_serial_port *port, struct file *file );
-static int digi_tiocmset( struct usb_serial_port *port, struct file *file,
- unsigned int set, unsigned int clear );
-static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count );
-static void digi_write_bulk_callback( struct urb *urb );
-static int digi_write_room( struct usb_serial_port *port );
-static int digi_chars_in_buffer( struct usb_serial_port *port );
-static int digi_open( struct usb_serial_port *port, struct file *filp );
-static void digi_close( struct usb_serial_port *port, struct file *filp );
-static int digi_startup_device( struct usb_serial *serial );
-static int digi_startup( struct usb_serial *serial );
-static void digi_shutdown( struct usb_serial *serial );
-static void digi_read_bulk_callback( struct urb *urb );
-static int digi_read_inb_callback( struct urb *urb );
-static int digi_read_oob_callback( struct urb *urb );
+static void digi_set_termios(struct usb_serial_port *port,
+ struct ktermios *old_termios);
+static void digi_break_ctl(struct usb_serial_port *port, int break_state);
+static int digi_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg);
+static int digi_tiocmget(struct usb_serial_port *port, struct file *file);
+static int digi_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear);
+static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count);
+static void digi_write_bulk_callback(struct urb *urb);
+static int digi_write_room(struct usb_serial_port *port);
+static int digi_chars_in_buffer(struct usb_serial_port *port);
+static int digi_open(struct usb_serial_port *port, struct file *filp);
+static void digi_close(struct usb_serial_port *port, struct file *filp);
+static int digi_startup_device(struct usb_serial *serial);
+static int digi_startup(struct usb_serial *serial);
+static void digi_shutdown(struct usb_serial *serial);
+static void digi_read_bulk_callback(struct urb *urb);
+static int digi_read_inb_callback(struct urb *urb);
+static int digi_read_oob_callback(struct urb *urb);
/* Statics */
* with the equivalent code.
*/
-static inline long cond_wait_interruptible_timeout_irqrestore(
+static long cond_wait_interruptible_timeout_irqrestore(
wait_queue_head_t *q, long timeout,
- spinlock_t *lock, unsigned long flags )
+ spinlock_t *lock, unsigned long flags)
{
DEFINE_WAIT(wait);
static void digi_wakeup_write_lock(struct work_struct *work)
{
- struct digi_port *priv =
- container_of(work, struct digi_port, dp_wakeup_work);
+ struct digi_port *priv = container_of(work, struct digi_port, dp_wakeup_work);
struct usb_serial_port *port = priv->dp_port;
unsigned long flags;
-
- spin_lock_irqsave( &priv->dp_port_lock, flags );
- digi_wakeup_write( port );
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
+ digi_wakeup_write(port);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
}
-static void digi_wakeup_write( struct usb_serial_port *port )
+static void digi_wakeup_write(struct usb_serial_port *port)
{
tty_wakeup(port->tty);
}
* returned by usb_submit_urb.
*/
-static int digi_write_oob_command( struct usb_serial_port *port,
- unsigned char *buf, int count, int interruptible )
+static int digi_write_oob_command(struct usb_serial_port *port,
+ unsigned char *buf, int count, int interruptible)
{
int ret = 0;
struct digi_port *oob_priv = usb_get_serial_port_data(oob_port);
unsigned long flags = 0;
+ dbg("digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count);
-dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, count );
-
- spin_lock_irqsave( &oob_priv->dp_port_lock, flags );
-
- while( count > 0 ) {
-
- while( oob_port->write_urb->status == -EINPROGRESS
- || oob_priv->dp_write_urb_in_use ) {
+ spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
+ while(count > 0) {
+ while(oob_port->write_urb->status == -EINPROGRESS
+ || oob_priv->dp_write_urb_in_use) {
cond_wait_interruptible_timeout_irqrestore(
&oob_port->write_wait, DIGI_RETRY_TIMEOUT,
- &oob_priv->dp_port_lock, flags );
- if( interruptible && signal_pending(current) ) {
- return( -EINTR );
- }
- spin_lock_irqsave( &oob_priv->dp_port_lock, flags );
+ &oob_priv->dp_port_lock, flags);
+ if (interruptible && signal_pending(current))
+ return -EINTR;
+ spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
}
/* len must be a multiple of 4, so commands are not split */
- len = min(count, oob_port->bulk_out_size );
- if( len > 4 )
+ len = min(count, oob_port->bulk_out_size);
+ if (len > 4)
len &= ~3;
-
- memcpy( oob_port->write_urb->transfer_buffer, buf, len );
+ memcpy(oob_port->write_urb->transfer_buffer, buf, len);
oob_port->write_urb->transfer_buffer_length = len;
oob_port->write_urb->dev = port->serial->dev;
-
- if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) {
+ if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) {
oob_priv->dp_write_urb_in_use = 1;
count -= len;
buf += len;
}
-
- }
-
- spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags );
-
- if( ret ) {
- err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__,
- ret );
}
-
- return( ret );
+ spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags);
+ if (ret)
+ err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret);
+ return ret;
}
* error returned by digi_write.
*/
-static int digi_write_inb_command( struct usb_serial_port *port,
- unsigned char *buf, int count, unsigned long timeout )
+static int digi_write_inb_command(struct usb_serial_port *port,
+ unsigned char *buf, int count, unsigned long timeout)
{
-
int ret = 0;
int len;
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned char *data = port->write_urb->transfer_buffer;
unsigned long flags = 0;
+ dbg("digi_write_inb_command: TOP: port=%d, count=%d",
+ priv->dp_port_num, count);
-dbg( "digi_write_inb_command: TOP: port=%d, count=%d", priv->dp_port_num,
-count );
-
- if( timeout )
+ if (timeout)
timeout += jiffies;
else
timeout = ULONG_MAX;
- spin_lock_irqsave( &priv->dp_port_lock, flags );
-
- while( count > 0 && ret == 0 ) {
-
- while( (port->write_urb->status == -EINPROGRESS
- || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) {
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
+ while(count > 0 && ret == 0) {
+ while((port->write_urb->status == -EINPROGRESS
+ || priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) {
cond_wait_interruptible_timeout_irqrestore(
&port->write_wait, DIGI_RETRY_TIMEOUT,
- &priv->dp_port_lock, flags );
- if( signal_pending(current) ) {
- return( -EINTR );
- }
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ &priv->dp_port_lock, flags);
+ if (signal_pending(current))
+ return -EINTR;
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
}
/* len must be a multiple of 4 and small enough to */
/* guarantee the write will send buffered data first, */
/* so commands are in order with data and not split */
- len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len );
- if( len > 4 )
+ len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len);
+ if (len > 4)
len &= ~3;
/* write any buffered data first */
- if( priv->dp_out_buf_len > 0 ) {
+ if (priv->dp_out_buf_len > 0) {
data[0] = DIGI_CMD_SEND_DATA;
data[1] = priv->dp_out_buf_len;
- memcpy( data+2, priv->dp_out_buf,
- priv->dp_out_buf_len );
- memcpy( data+2+priv->dp_out_buf_len, buf, len );
+ memcpy(data + 2, priv->dp_out_buf,
+ priv->dp_out_buf_len);
+ memcpy(data + 2 + priv->dp_out_buf_len, buf, len);
port->write_urb->transfer_buffer_length
- = priv->dp_out_buf_len+2+len;
+ = priv->dp_out_buf_len + 2 + len;
} else {
- memcpy( data, buf, len );
+ memcpy(data, buf, len);
port->write_urb->transfer_buffer_length = len;
}
port->write_urb->dev = port->serial->dev;
- if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) {
+ if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) {
priv->dp_write_urb_in_use = 1;
priv->dp_out_buf_len = 0;
count -= len;
}
}
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
- if( ret ) {
- err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__,
- ret, priv->dp_port_num );
- }
-
- return( ret );
-
+ if (ret)
+ err("%s: usb_submit_urb failed, ret=%d, port=%d",
+ __FUNCTION__, ret, priv->dp_port_num);
+ return ret;
}
* returned by usb_submit_urb.
*/
-static int digi_set_modem_signals( struct usb_serial_port *port,
- unsigned int modem_signals, int interruptible )
+static int digi_set_modem_signals(struct usb_serial_port *port,
+ unsigned int modem_signals, int interruptible)
{
int ret;
unsigned long flags = 0;
-dbg( "digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x",
-port_priv->dp_port_num, modem_signals );
+ dbg("digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x",
+ port_priv->dp_port_num, modem_signals);
- spin_lock_irqsave( &oob_priv->dp_port_lock, flags );
- spin_lock( &port_priv->dp_port_lock );
+ spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
+ spin_lock(&port_priv->dp_port_lock);
- while( oob_port->write_urb->status == -EINPROGRESS
- || oob_priv->dp_write_urb_in_use ) {
- spin_unlock( &port_priv->dp_port_lock );
+ while(oob_port->write_urb->status == -EINPROGRESS || oob_priv->dp_write_urb_in_use) {
+ spin_unlock(&port_priv->dp_port_lock);
cond_wait_interruptible_timeout_irqrestore(
&oob_port->write_wait, DIGI_RETRY_TIMEOUT,
- &oob_priv->dp_port_lock, flags );
- if( interruptible && signal_pending(current) ) {
- return( -EINTR );
- }
- spin_lock_irqsave( &oob_priv->dp_port_lock, flags );
- spin_lock( &port_priv->dp_port_lock );
+ &oob_priv->dp_port_lock, flags);
+ if (interruptible && signal_pending(current))
+ return -EINTR;
+ spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
+ spin_lock(&port_priv->dp_port_lock);
}
-
data[0] = DIGI_CMD_SET_DTR_SIGNAL;
data[1] = port_priv->dp_port_num;
- data[2] = (modem_signals&TIOCM_DTR) ?
- DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE;
+ data[2] = (modem_signals&TIOCM_DTR) ? DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE;
data[3] = 0;
-
data[4] = DIGI_CMD_SET_RTS_SIGNAL;
data[5] = port_priv->dp_port_num;
- data[6] = (modem_signals&TIOCM_RTS) ?
- DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE;
+ data[6] = (modem_signals&TIOCM_RTS) ? DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE;
data[7] = 0;
oob_port->write_urb->transfer_buffer_length = 8;
oob_port->write_urb->dev = port->serial->dev;
- if( (ret=usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0 ) {
+ if ((ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC)) == 0) {
oob_priv->dp_write_urb_in_use = 1;
port_priv->dp_modem_signals =
(port_priv->dp_modem_signals&~(TIOCM_DTR|TIOCM_RTS))
| (modem_signals&(TIOCM_DTR|TIOCM_RTS));
}
-
- spin_unlock( &port_priv->dp_port_lock );
- spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags );
-
- if( ret ) {
- err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__,
- ret );
- }
-
- return( ret );
-
+ spin_unlock(&port_priv->dp_port_lock);
+ spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags);
+ if (ret)
+ err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret);
+ return ret;
}
-
/*
* Digi Transmit Idle
*
* port at a time, so its ok.
*/
-static int digi_transmit_idle( struct usb_serial_port *port,
- unsigned long timeout )
+static int digi_transmit_idle(struct usb_serial_port *port,
+ unsigned long timeout)
{
-
int ret;
unsigned char buf[2];
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0;
-
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_transmit_idle = 0;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
buf[0] = DIGI_CMD_TRANSMIT_IDLE;
buf[1] = 0;
timeout += jiffies;
- if( (ret=digi_write_inb_command( port, buf, 2, timeout-jiffies )) != 0 )
- return( ret );
+ if ((ret = digi_write_inb_command(port, buf, 2, timeout - jiffies)) != 0)
+ return ret;
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
- while( time_before(jiffies, timeout) && !priv->dp_transmit_idle ) {
+ while(time_before(jiffies, timeout) && !priv->dp_transmit_idle) {
cond_wait_interruptible_timeout_irqrestore(
&priv->dp_transmit_idle_wait, DIGI_RETRY_TIMEOUT,
- &priv->dp_port_lock, flags );
- if( signal_pending(current) ) {
- return( -EINTR );
- }
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ &priv->dp_port_lock, flags);
+ if (signal_pending(current))
+ return -EINTR;
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
}
-
priv->dp_transmit_idle = 0;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
- return( 0 );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ return 0;
}
-static void digi_rx_throttle( struct usb_serial_port *port )
+static void digi_rx_throttle(struct usb_serial_port *port)
{
-
unsigned long flags;
struct digi_port *priv = usb_get_serial_port_data(port);
-dbg( "digi_rx_throttle: TOP: port=%d", priv->dp_port_num );
+ dbg("digi_rx_throttle: TOP: port=%d", priv->dp_port_num);
/* stop receiving characters by not resubmitting the read urb */
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_throttled = 1;
priv->dp_throttle_restart = 0;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
}
-static void digi_rx_unthrottle( struct usb_serial_port *port )
+static void digi_rx_unthrottle(struct usb_serial_port *port)
{
-
int ret = 0;
unsigned long flags;
struct digi_port *priv = usb_get_serial_port_data(port);
-dbg( "digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num );
+ dbg("digi_rx_unthrottle: TOP: port=%d", priv->dp_port_num);
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
/* turn throttle off */
priv->dp_throttled = 0;
priv->dp_throttle_restart = 0;
/* restart read chain */
- if( priv->dp_throttle_restart ) {
+ if (priv->dp_throttle_restart) {
port->read_urb->dev = port->serial->dev;
- ret = usb_submit_urb( port->read_urb, GFP_ATOMIC );
+ ret = usb_submit_urb(port->read_urb, GFP_ATOMIC);
}
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
- if( ret ) {
- err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__,
- ret, priv->dp_port_num );
- }
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ if (ret)
+ err("%s: usb_submit_urb failed, ret=%d, port=%d",
+ __FUNCTION__, ret, priv->dp_port_num);
}
-static void digi_set_termios( struct usb_serial_port *port,
- struct ktermios *old_termios )
+static void digi_set_termios(struct usb_serial_port *port,
+ struct ktermios *old_termios)
{
struct digi_port *priv = usb_get_serial_port_data(port);
- unsigned int iflag = port->tty->termios->c_iflag;
- unsigned int cflag = port->tty->termios->c_cflag;
+ struct tty_struct *tty = port->tty;
+ unsigned int iflag = tty->termios->c_iflag;
+ unsigned int cflag = tty->termios->c_cflag;
unsigned int old_iflag = old_termios->c_iflag;
unsigned int old_cflag = old_termios->c_cflag;
unsigned char buf[32];
unsigned int modem_signals;
int arg,ret;
int i = 0;
+ speed_t baud;
-
-dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag );
+ dbg("digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, old_cflag=0x%x", priv->dp_port_num, iflag, old_iflag, cflag, old_cflag);
/* set baud rate */
- if( (cflag&CBAUD) != (old_cflag&CBAUD) ) {
-
+ if ((baud = tty_get_baud_rate(tty)) != tty_termios_baud_rate(old_termios)) {
arg = -1;
/* reassert DTR and (maybe) RTS on transition from B0 */
- if( (old_cflag&CBAUD) == B0 ) {
+ if ((old_cflag&CBAUD) == B0) {
/* don't set RTS if using hardware flow control */
/* and throttling input */
modem_signals = TIOCM_DTR;
- if( !(port->tty->termios->c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &port->tty->flags) ) {
+ if (!(tty->termios->c_cflag & CRTSCTS) ||
+ !test_bit(TTY_THROTTLED, &tty->flags))
modem_signals |= TIOCM_RTS;
- }
- digi_set_modem_signals( port, modem_signals, 1 );
+ digi_set_modem_signals(port, modem_signals, 1);
}
-
- switch( (cflag&CBAUD) ) {
+ switch (baud) {
/* drop DTR and RTS on transition to B0 */
- case B0: digi_set_modem_signals( port, 0, 1 ); break;
- case B50: arg = DIGI_BAUD_50; break;
- case B75: arg = DIGI_BAUD_75; break;
- case B110: arg = DIGI_BAUD_110; break;
- case B150: arg = DIGI_BAUD_150; break;
- case B200: arg = DIGI_BAUD_200; break;
- case B300: arg = DIGI_BAUD_300; break;
- case B600: arg = DIGI_BAUD_600; break;
- case B1200: arg = DIGI_BAUD_1200; break;
- case B1800: arg = DIGI_BAUD_1800; break;
- case B2400: arg = DIGI_BAUD_2400; break;
- case B4800: arg = DIGI_BAUD_4800; break;
- case B9600: arg = DIGI_BAUD_9600; break;
- case B19200: arg = DIGI_BAUD_19200; break;
- case B38400: arg = DIGI_BAUD_38400; break;
- case B57600: arg = DIGI_BAUD_57600; break;
- case B115200: arg = DIGI_BAUD_115200; break;
- case B230400: arg = DIGI_BAUD_230400; break;
- case B460800: arg = DIGI_BAUD_460800; break;
- default:
- dbg( "digi_set_termios: can't handle baud rate 0x%x",
- (cflag&CBAUD) );
- break;
+ case 0: digi_set_modem_signals(port, 0, 1); break;
+ case 50: arg = DIGI_BAUD_50; break;
+ case 75: arg = DIGI_BAUD_75; break;
+ case 110: arg = DIGI_BAUD_110; break;
+ case 150: arg = DIGI_BAUD_150; break;
+ case 200: arg = DIGI_BAUD_200; break;
+ case 300: arg = DIGI_BAUD_300; break;
+ case 600: arg = DIGI_BAUD_600; break;
+ case 1200: arg = DIGI_BAUD_1200; break;
+ case 1800: arg = DIGI_BAUD_1800; break;
+ case 2400: arg = DIGI_BAUD_2400; break;
+ case 4800: arg = DIGI_BAUD_4800; break;
+ case 9600: arg = DIGI_BAUD_9600; break;
+ case 19200: arg = DIGI_BAUD_19200; break;
+ case 38400: arg = DIGI_BAUD_38400; break;
+ case 57600: arg = DIGI_BAUD_57600; break;
+ case 115200: arg = DIGI_BAUD_115200; break;
+ case 230400: arg = DIGI_BAUD_230400; break;
+ case 460800: arg = DIGI_BAUD_460800; break;
+ default:
+ arg = DIGI_BAUD_9600;
+ baud = 9600;
+ break;
}
-
- if( arg != -1 ) {
+ if (arg != -1) {
buf[i++] = DIGI_CMD_SET_BAUD_RATE;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
buf[i++] = 0;
}
-
}
-
/* set parity */
- if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) {
-
- if( (cflag&PARENB) ) {
- if( (cflag&PARODD) )
+ if ((cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD))) {
+ if (cflag&PARENB) {
+ if (cflag&PARODD)
arg = DIGI_PARITY_ODD;
else
arg = DIGI_PARITY_EVEN;
} else {
arg = DIGI_PARITY_NONE;
}
-
buf[i++] = DIGI_CMD_SET_PARITY;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
buf[i++] = 0;
-
}
-
/* set word size */
- if( (cflag&CSIZE) != (old_cflag&CSIZE) ) {
-
+ if ((cflag&CSIZE) != (old_cflag&CSIZE)) {
arg = -1;
-
- switch( (cflag&CSIZE) ) {
+ switch (cflag&CSIZE) {
case CS5: arg = DIGI_WORD_SIZE_5; break;
case CS6: arg = DIGI_WORD_SIZE_6; break;
case CS7: arg = DIGI_WORD_SIZE_7; break;
case CS8: arg = DIGI_WORD_SIZE_8; break;
default:
- dbg( "digi_set_termios: can't handle word size %d",
- (cflag&CSIZE) );
+ dbg("digi_set_termios: can't handle word size %d",
+ (cflag&CSIZE));
break;
}
- if( arg != -1 ) {
+ if (arg != -1) {
buf[i++] = DIGI_CMD_SET_WORD_SIZE;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
}
/* set stop bits */
- if( (cflag&CSTOPB) != (old_cflag&CSTOPB) ) {
+ if ((cflag&CSTOPB) != (old_cflag&CSTOPB)) {
- if( (cflag&CSTOPB) )
+ if ((cflag&CSTOPB))
arg = DIGI_STOP_BITS_2;
else
arg = DIGI_STOP_BITS_1;
}
/* set input flow control */
- if( (iflag&IXOFF) != (old_iflag&IXOFF)
- || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) {
-
+ if ((iflag&IXOFF) != (old_iflag&IXOFF)
+ || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) {
arg = 0;
-
- if( (iflag&IXOFF) )
+ if (iflag&IXOFF)
arg |= DIGI_INPUT_FLOW_CONTROL_XON_XOFF;
else
arg &= ~DIGI_INPUT_FLOW_CONTROL_XON_XOFF;
- if( (cflag&CRTSCTS) ) {
-
+ if (cflag&CRTSCTS) {
arg |= DIGI_INPUT_FLOW_CONTROL_RTS;
/* On USB-4 it is necessary to assert RTS prior */
} else {
arg &= ~DIGI_INPUT_FLOW_CONTROL_RTS;
}
-
buf[i++] = DIGI_CMD_SET_INPUT_FLOW_CONTROL;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
buf[i++] = 0;
-
}
/* set output flow control */
- if( (iflag&IXON) != (old_iflag&IXON)
- || (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) {
-
+ if ((iflag&IXON) != (old_iflag&IXON)
+ || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) {
arg = 0;
-
- if( (iflag&IXON) )
+ if (iflag&IXON)
arg |= DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF;
else
arg &= ~DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF;
- if( (cflag&CRTSCTS) ) {
+ if (cflag&CRTSCTS) {
arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS;
} else {
arg &= ~DIGI_OUTPUT_FLOW_CONTROL_CTS;
- port->tty->hw_stopped = 0;
+ tty->hw_stopped = 0;
}
buf[i++] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
buf[i++] = 0;
-
}
/* set receive enable/disable */
- if( (cflag&CREAD) != (old_cflag&CREAD) ) {
-
- if( (cflag&CREAD) )
+ if ((cflag&CREAD) != (old_cflag&CREAD)) {
+ if (cflag&CREAD)
arg = DIGI_ENABLE;
else
arg = DIGI_DISABLE;
buf[i++] = priv->dp_port_num;
buf[i++] = arg;
buf[i++] = 0;
-
}
-
- if( (ret=digi_write_oob_command( port, buf, i, 1 )) != 0 )
- dbg( "digi_set_termios: write oob failed, ret=%d", ret );
+ if ((ret = digi_write_oob_command(port, buf, i, 1)) != 0)
+ dbg("digi_set_termios: write oob failed, ret=%d", ret);
}
-static void digi_break_ctl( struct usb_serial_port *port, int break_state )
+static void digi_break_ctl(struct usb_serial_port *port, int break_state)
{
-
unsigned char buf[4];
-
buf[0] = DIGI_CMD_BREAK_CONTROL;
buf[1] = 2; /* length */
buf[2] = break_state ? 1 : 0;
buf[3] = 0; /* pad */
-
- digi_write_inb_command( port, buf, 4, 0 );
-
+ digi_write_inb_command(port, buf, 4, 0);
}
-static int digi_tiocmget( struct usb_serial_port *port, struct file *file )
+static int digi_tiocmget(struct usb_serial_port *port, struct file *file)
{
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned int val;
dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num);
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
val = priv->dp_modem_signals;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return val;
}
-static int digi_tiocmset( struct usb_serial_port *port, struct file *file,
- unsigned int set, unsigned int clear )
+static int digi_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear)
{
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned int val;
dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num);
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
val = (priv->dp_modem_signals & ~clear) | set;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
- return digi_set_modem_signals( port, val, 1 );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ return digi_set_modem_signals(port, val, 1);
}
-static int digi_ioctl( struct usb_serial_port *port, struct file *file,
- unsigned int cmd, unsigned long arg )
+static int digi_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
-
struct digi_port *priv = usb_get_serial_port_data(port);
-
-dbg( "digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd );
+ dbg("digi_ioctl: TOP: port=%d, cmd=0x%x", priv->dp_port_num, cmd);
switch (cmd) {
-
case TIOCMIWAIT:
/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
/* TODO */
- return( 0 );
-
+ return 0;
case TIOCGICOUNT:
/* return count of modemline transitions */
/* TODO */
return 0;
-
}
-
- return( -ENOIOCTLCMD );
+ return -ENOIOCTLCMD;
}
-
-static int digi_write( struct usb_serial_port *port, const unsigned char *buf, int count )
+static int digi_write(struct usb_serial_port *port, const unsigned char *buf, int count)
{
int ret,data_len,new_len;
unsigned char *data = port->write_urb->transfer_buffer;
unsigned long flags = 0;
-
-dbg( "digi_write: TOP: port=%d, count=%d, in_interrupt=%ld",
-priv->dp_port_num, count, in_interrupt() );
+ dbg("digi_write: TOP: port=%d, count=%d, in_interrupt=%ld",
+ priv->dp_port_num, count, in_interrupt());
/* copy user data (which can sleep) before getting spin lock */
- count = min( count, port->bulk_out_size-2 );
- count = min( 64, count);
+ count = min(count, port->bulk_out_size-2);
+ count = min(64, count);
/* be sure only one write proceeds at a time */
/* there are races on the port private buffer */
/* and races to check write_urb->status */
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
/* wait for urb status clear to submit another urb */
- if( port->write_urb->status == -EINPROGRESS
- || priv->dp_write_urb_in_use ) {
-
+ if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) {
/* buffer data if count is 1 (probably put_char) if possible */
- if( count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE ) {
+ if (count == 1 && priv->dp_out_buf_len < DIGI_OUT_BUF_SIZE) {
priv->dp_out_buf[priv->dp_out_buf_len++] = *buf;
new_len = 1;
} else {
new_len = 0;
}
-
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
- return( new_len );
-
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ return new_len;
}
/* allow space for any buffered data and for new data, up to */
new_len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len);
data_len = new_len + priv->dp_out_buf_len;
- if( data_len == 0 ) {
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
- return( 0 );
+ if (data_len == 0) {
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ return 0;
}
port->write_urb->transfer_buffer_length = data_len+2;
*data++ = data_len;
/* copy in buffered data first */
- memcpy( data, priv->dp_out_buf, priv->dp_out_buf_len );
+ memcpy(data, priv->dp_out_buf, priv->dp_out_buf_len);
data += priv->dp_out_buf_len;
/* copy in new data */
- memcpy( data, buf, new_len );
+ memcpy(data, buf, new_len);
- if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) {
+ if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) {
priv->dp_write_urb_in_use = 1;
ret = new_len;
priv->dp_out_buf_len = 0;
}
/* return length of new data written, or error */
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
- if( ret < 0 ) {
- err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__,
- ret, priv->dp_port_num );
- }
-
-dbg( "digi_write: returning %d", ret );
- return( ret );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ if (ret < 0)
+ err("%s: usb_submit_urb failed, ret=%d, port=%d",
+ __FUNCTION__, ret, priv->dp_port_num);
+ dbg("digi_write: returning %d", ret);
+ return ret;
}
-
-static void digi_write_bulk_callback( struct urb *urb )
+static void digi_write_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
int ret = 0;
int status = urb->status;
-
- dbg("digi_write_bulk_callback: TOP, urb status=%d", status);
+ dbg("digi_write_bulk_callback: TOP, urb->status=%d", status);
/* port and serial sanity check */
- if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) {
+ if (port == NULL || (priv=usb_get_serial_port_data(port)) == NULL) {
err("%s: port or port->private is NULL, status=%d",
__FUNCTION__, status);
return;
}
serial = port->serial;
- if( serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL ) {
+ if (serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL) {
err("%s: serial or serial->private is NULL, status=%d",
__FUNCTION__, status);
return;
}
/* handle oob callback */
- if( priv->dp_port_num == serial_priv->ds_oob_port_num ) {
- dbg( "digi_write_bulk_callback: oob callback" );
- spin_lock( &priv->dp_port_lock );
+ if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
+ dbg("digi_write_bulk_callback: oob callback");
+ spin_lock(&priv->dp_port_lock);
priv->dp_write_urb_in_use = 0;
- wake_up_interruptible( &port->write_wait );
- spin_unlock( &priv->dp_port_lock );
+ wake_up_interruptible(&port->write_wait);
+ spin_unlock(&priv->dp_port_lock);
return;
}
/* try to send any buffered data on this port, if it is open */
- spin_lock( &priv->dp_port_lock );
+ spin_lock(&priv->dp_port_lock);
priv->dp_write_urb_in_use = 0;
- if( port->open_count && port->write_urb->status != -EINPROGRESS
- && priv->dp_out_buf_len > 0 ) {
-
+ if (port->open_count && port->write_urb->status != -EINPROGRESS
+ && priv->dp_out_buf_len > 0) {
*((unsigned char *)(port->write_urb->transfer_buffer))
= (unsigned char)DIGI_CMD_SEND_DATA;
*((unsigned char *)(port->write_urb->transfer_buffer)+1)
= (unsigned char)priv->dp_out_buf_len;
-
- port->write_urb->transfer_buffer_length
- = priv->dp_out_buf_len+2;
+ port->write_urb->transfer_buffer_length = priv->dp_out_buf_len+2;
port->write_urb->dev = serial->dev;
-
- memcpy( port->write_urb->transfer_buffer+2, priv->dp_out_buf,
- priv->dp_out_buf_len );
-
- if( (ret=usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0 ) {
+ memcpy(port->write_urb->transfer_buffer+2, priv->dp_out_buf,
+ priv->dp_out_buf_len);
+ if ((ret = usb_submit_urb(port->write_urb, GFP_ATOMIC)) == 0) {
priv->dp_write_urb_in_use = 1;
priv->dp_out_buf_len = 0;
}
-
}
-
/* wake up processes sleeping on writes immediately */
- digi_wakeup_write( port );
-
+ digi_wakeup_write(port);
/* also queue up a wakeup at scheduler time, in case we */
/* lost the race in write_chan(). */
schedule_work(&priv->dp_wakeup_work);
- spin_unlock( &priv->dp_port_lock );
-
- if( ret ) {
- err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__,
- ret, priv->dp_port_num );
- }
-
+ spin_unlock(&priv->dp_port_lock);
+ if (ret)
+ err("%s: usb_submit_urb failed, ret=%d, port=%d",
+ __FUNCTION__, ret, priv->dp_port_num);
}
-
-static int digi_write_room( struct usb_serial_port *port )
+static int digi_write_room(struct usb_serial_port *port)
{
int room;
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0;
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
- spin_lock_irqsave( &priv->dp_port_lock, flags );
-
- if( port->write_urb->status == -EINPROGRESS
- || priv->dp_write_urb_in_use )
+ if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use)
room = 0;
else
room = port->bulk_out_size - 2 - priv->dp_out_buf_len;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
-dbg( "digi_write_room: port=%d, room=%d", priv->dp_port_num, room );
- return( room );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ dbg("digi_write_room: port=%d, room=%d", priv->dp_port_num, room);
+ return room;
}
-
-static int digi_chars_in_buffer( struct usb_serial_port *port )
+static int digi_chars_in_buffer(struct usb_serial_port *port)
{
struct digi_port *priv = usb_get_serial_port_data(port);
- if( port->write_urb->status == -EINPROGRESS
- || priv->dp_write_urb_in_use ) {
-dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, port->bulk_out_size - 2 );
- /* return( port->bulk_out_size - 2 ); */
- return( 256 );
+ if (port->write_urb->status == -EINPROGRESS
+ || priv->dp_write_urb_in_use) {
+ dbg("digi_chars_in_buffer: port=%d, chars=%d",
+ priv->dp_port_num, port->bulk_out_size - 2);
+ /* return(port->bulk_out_size - 2); */
+ return 256;
} else {
-dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, priv->dp_out_buf_len );
- return( priv->dp_out_buf_len );
+ dbg("digi_chars_in_buffer: port=%d, chars=%d",
+ priv->dp_port_num, priv->dp_out_buf_len);
+ return priv->dp_out_buf_len;
}
}
-static int digi_open( struct usb_serial_port *port, struct file *filp )
+static int digi_open(struct usb_serial_port *port, struct file *filp)
{
-
int ret;
unsigned char buf[32];
struct digi_port *priv = usb_get_serial_port_data(port);
struct ktermios not_termios;
unsigned long flags = 0;
-
-dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count );
+ dbg("digi_open: TOP: port=%d, open_count=%d",
+ priv->dp_port_num, port->open_count);
/* be sure the device is started up */
- if( digi_startup_device( port->serial ) != 0 )
- return( -ENXIO );
+ if (digi_startup_device(port->serial) != 0)
+ return -ENXIO;
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
/* don't wait on a close in progress for non-blocking opens */
- if( priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) {
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
- return( -EAGAIN );
+ if (priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) {
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ return -EAGAIN;
}
/* wait for a close in progress to finish */
- while( priv->dp_in_close ) {
+ while(priv->dp_in_close) {
cond_wait_interruptible_timeout_irqrestore(
&priv->dp_close_wait, DIGI_RETRY_TIMEOUT,
- &priv->dp_port_lock, flags );
- if( signal_pending(current) ) {
- return( -EINTR );
- }
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ &priv->dp_port_lock, flags);
+ if (signal_pending(current))
+ return -EINTR;
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
}
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
/* read modem signals automatically whenever they change */
buf[0] = DIGI_CMD_READ_INPUT_SIGNALS;
buf[6] = DIGI_FLUSH_TX | DIGI_FLUSH_RX;
buf[7] = 0;
- if( (ret=digi_write_oob_command( port, buf, 8, 1 )) != 0 )
- dbg( "digi_open: write oob failed, ret=%d", ret );
+ if ((ret = digi_write_oob_command(port, buf, 8, 1)) != 0)
+ dbg("digi_open: write oob failed, ret=%d", ret);
/* set termios settings */
not_termios.c_cflag = ~port->tty->termios->c_cflag;
not_termios.c_iflag = ~port->tty->termios->c_iflag;
- digi_set_termios( port, ¬_termios );
+ digi_set_termios(port, ¬_termios);
/* set DTR and RTS */
- digi_set_modem_signals( port, TIOCM_DTR|TIOCM_RTS, 1 );
-
- return( 0 );
+ digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1);
+ return 0;
}
-static void digi_close( struct usb_serial_port *port, struct file *filp )
+static void digi_close(struct usb_serial_port *port, struct file *filp)
{
DEFINE_WAIT(wait);
int ret;
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0;
-
-dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count );
-
+ dbg("digi_close: TOP: port=%d, open_count=%d",
+ priv->dp_port_num, port->open_count);
/* if disconnected, just clear flags */
if (!usb_get_intfdata(port->serial->interface))
goto exit;
/* do cleanup only after final close on this port */
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_in_close = 1;
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
/* tell line discipline to process only XON/XOFF */
tty->closing = 1;
/* wait for output to drain */
- if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) {
- tty_wait_until_sent( tty, DIGI_CLOSE_TIMEOUT );
- }
+ if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0)
+ tty_wait_until_sent(tty, DIGI_CLOSE_TIMEOUT);
/* flush driver and line discipline buffers */
- if( tty->driver->flush_buffer )
- tty->driver->flush_buffer( tty );
+ if (tty->driver->flush_buffer)
+ tty->driver->flush_buffer(tty);
tty_ldisc_flush(tty);
if (port->serial->dev) {
/* wait for transmit idle */
- if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) {
- digi_transmit_idle( port, DIGI_CLOSE_TIMEOUT );
+ if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) {
+ digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT);
}
-
/* drop DTR and RTS */
- digi_set_modem_signals( port, 0, 0 );
+ digi_set_modem_signals(port, 0, 0);
/* disable input flow control */
buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL;
buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX;
buf[19] = 0;
- if( (ret=digi_write_oob_command( port, buf, 20, 0 )) != 0 )
- dbg( "digi_close: write oob failed, ret=%d", ret );
+ if ((ret = digi_write_oob_command(port, buf, 20, 0)) != 0)
+ dbg("digi_close: write oob failed, ret=%d", ret);
/* wait for final commands on oob port to complete */
prepare_to_wait(&priv->dp_flush_wait, &wait, TASK_INTERRUPTIBLE);
/* shutdown any outstanding bulk writes */
usb_kill_urb(port->write_urb);
}
-
tty->closing = 0;
-
exit:
- spin_lock_irqsave( &priv->dp_port_lock, flags );
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_write_urb_in_use = 0;
priv->dp_in_close = 0;
- wake_up_interruptible( &priv->dp_close_wait );
- spin_unlock_irqrestore( &priv->dp_port_lock, flags );
-
-dbg( "digi_close: done" );
+ wake_up_interruptible(&priv->dp_close_wait);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
+ dbg("digi_close: done");
}
* urbs initialized. Returns 0 if successful, non-zero error otherwise.
*/
-static int digi_startup_device( struct usb_serial *serial )
+static int digi_startup_device(struct usb_serial *serial)
{
-
int i,ret = 0;
struct digi_serial *serial_priv = usb_get_serial_data(serial);
struct usb_serial_port *port;
-
/* be sure this happens exactly once */
- spin_lock( &serial_priv->ds_serial_lock );
- if( serial_priv->ds_device_started ) {
- spin_unlock( &serial_priv->ds_serial_lock );
- return( 0 );
+ spin_lock(&serial_priv->ds_serial_lock);
+ if (serial_priv->ds_device_started) {
+ spin_unlock(&serial_priv->ds_serial_lock);
+ return 0;
}
serial_priv->ds_device_started = 1;
- spin_unlock( &serial_priv->ds_serial_lock );
+ spin_unlock(&serial_priv->ds_serial_lock);
/* start reading from each bulk in endpoint for the device */
/* set USB_DISABLE_SPD flag for write bulk urbs */
- for( i=0; i<serial->type->num_ports+1; i++ ) {
-
+ for (i = 0; i < serial->type->num_ports + 1; i++) {
port = serial->port[i];
-
port->write_urb->dev = port->serial->dev;
-
- if( (ret=usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0 ) {
- err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__,
- ret, i );
+ if ((ret = usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0) {
+ err("%s: usb_submit_urb failed, ret=%d, port=%d",
+ __FUNCTION__, ret, i);
break;
}
-
}
-
- return( ret );
-
+ return ret;
}
-static int digi_startup( struct usb_serial *serial )
+static int digi_startup(struct usb_serial *serial)
{
int i;
struct digi_port *priv;
struct digi_serial *serial_priv;
-
-dbg( "digi_startup: TOP" );
+ dbg("digi_startup: TOP");
/* allocate the private data structures for all ports */
/* number of regular ports + 1 for the out-of-band port */
- for( i=0; i<serial->type->num_ports+1; i++ ) {
-
+ for(i = 0; i < serial->type->num_ports + 1; i++) {
/* allocate port private structure */
- priv = kmalloc( sizeof(struct digi_port),
- GFP_KERNEL );
- if( priv == (struct digi_port *)0 ) {
- while( --i >= 0 )
- kfree( usb_get_serial_port_data(serial->port[i]) );
- return( 1 ); /* error */
+ priv = kmalloc(sizeof(struct digi_port), GFP_KERNEL);
+ if (priv == NULL) {
+ while (--i >= 0)
+ kfree(usb_get_serial_port_data(serial->port[i]));
+ return 1; /* error */
}
/* initialize port private structure */
- spin_lock_init( &priv->dp_port_lock );
+ spin_lock_init(&priv->dp_port_lock);
priv->dp_port_num = i;
priv->dp_out_buf_len = 0;
priv->dp_write_urb_in_use = 0;
priv->dp_modem_signals = 0;
- init_waitqueue_head( &priv->dp_modem_change_wait );
+ init_waitqueue_head(&priv->dp_modem_change_wait);
priv->dp_transmit_idle = 0;
- init_waitqueue_head( &priv->dp_transmit_idle_wait );
+ init_waitqueue_head(&priv->dp_transmit_idle_wait);
priv->dp_throttled = 0;
priv->dp_throttle_restart = 0;
- init_waitqueue_head( &priv->dp_flush_wait );
+ init_waitqueue_head(&priv->dp_flush_wait);
priv->dp_in_close = 0;
- init_waitqueue_head( &priv->dp_close_wait );
+ init_waitqueue_head(&priv->dp_close_wait);
INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock);
priv->dp_port = serial->port[i];
-
/* initialize write wait queue for this port */
- init_waitqueue_head( &serial->port[i]->write_wait );
+ init_waitqueue_head(&serial->port[i]->write_wait);
usb_set_serial_port_data(serial->port[i], priv);
}
/* allocate serial private structure */
- serial_priv = kmalloc( sizeof(struct digi_serial),
- GFP_KERNEL );
- if( serial_priv == (struct digi_serial *)0 ) {
- for( i=0; i<serial->type->num_ports+1; i++ )
- kfree( usb_get_serial_port_data(serial->port[i]) );
- return( 1 ); /* error */
+ serial_priv = kmalloc(sizeof(struct digi_serial), GFP_KERNEL);
+ if (serial_priv == NULL) {
+ for (i = 0; i < serial->type->num_ports + 1; i++)
+ kfree(usb_get_serial_port_data(serial->port[i]));
+ return 1; /* error */
}
/* initialize serial private structure */
- spin_lock_init( &serial_priv->ds_serial_lock );
+ spin_lock_init(&serial_priv->ds_serial_lock);
serial_priv->ds_oob_port_num = serial->type->num_ports;
serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num];
serial_priv->ds_device_started = 0;
usb_set_serial_data(serial, serial_priv);
- return( 0 );
-
+ return 0;
}
-static void digi_shutdown( struct usb_serial *serial )
+static void digi_shutdown(struct usb_serial *serial)
{
-
int i;
-
-
-dbg( "digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt() );
+ dbg("digi_shutdown: TOP, in_interrupt()=%ld", in_interrupt());
/* stop reads and writes on all ports */
- for( i=0; i<serial->type->num_ports+1; i++ ) {
+ for (i = 0; i < serial->type->num_ports + 1; i++) {
usb_kill_urb(serial->port[i]->read_urb);
usb_kill_urb(serial->port[i]->write_urb);
}
/* free the private data structures for all ports */
/* number of regular ports + 1 for the out-of-band port */
- for( i=0; i<serial->type->num_ports+1; i++ )
- kfree( usb_get_serial_port_data(serial->port[i]) );
- kfree( usb_get_serial_data(serial) );
+ for(i = 0; i < serial->type->num_ports + 1; i++)
+ kfree(usb_get_serial_port_data(serial->port[i]));
+ kfree(usb_get_serial_data(serial));
}
-static void digi_read_bulk_callback( struct urb *urb )
+static void digi_read_bulk_callback(struct urb *urb)
{
-
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct digi_port *priv;
struct digi_serial *serial_priv;
int ret;
int status = urb->status;
-
-dbg( "digi_read_bulk_callback: TOP" );
+ dbg("digi_read_bulk_callback: TOP");
/* port sanity check, do not resubmit if port is not valid */
- if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) {
+ if (port == NULL || (priv = usb_get_serial_port_data(port)) == NULL) {
err("%s: port or port->private is NULL, status=%d",
__FUNCTION__, status);
return;
}
- if( port->serial == NULL
- || (serial_priv=usb_get_serial_data(port->serial)) == NULL ) {
+ if (port->serial == NULL ||
+ (serial_priv=usb_get_serial_data(port->serial)) == NULL) {
err("%s: serial is bad or serial->private is NULL, status=%d",
- __FUNCTION__, status);
+ __FUNCTION__, status);
return;
}
}
/* handle oob or inb callback, do not resubmit if error */
- if( priv->dp_port_num == serial_priv->ds_oob_port_num ) {
- if( digi_read_oob_callback( urb ) != 0 )
+ if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
+ if (digi_read_oob_callback(urb) != 0)
return;
} else {
- if( digi_read_inb_callback( urb ) != 0 )
+ if (digi_read_inb_callback(urb) != 0)
return;
}
/* continue read */
urb->dev = port->serial->dev;
- if( (ret=usb_submit_urb(urb, GFP_ATOMIC)) != 0 ) {
- err("%s: failed resubmitting urb, ret=%d, port=%d", __FUNCTION__,
- ret, priv->dp_port_num );
+ if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
+ err("%s: failed resubmitting urb, ret=%d, port=%d",
+ __FUNCTION__, ret, priv->dp_port_num);
}
}
-
/*
* Digi Read INB Callback
*
* throttled, and -1 if the sanity checks failed.
*/
-static int digi_read_inb_callback( struct urb *urb )
+static int digi_read_inb_callback(struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
/* do not process callbacks on closed ports */
/* but do continue the read chain */
- if( port->open_count == 0 )
- return( 0 );
+ if (port->open_count == 0)
+ return 0;
/* short/multiple packet check */
- if( urb->actual_length != len + 2 ) {
- err("%s: INCOMPLETE OR MULTIPLE PACKET, urb status=%d, "
+ if (urb->actual_length != len + 2) {
+ err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, "
"port=%d, opcode=%d, len=%d, actual_length=%d, "
- "port_status=%d", __FUNCTION__, status, priv->dp_port_num,
+ "status=%d", __FUNCTION__, status, priv->dp_port_num,
opcode, len, urb->actual_length, port_status);
- return( -1 );
+ return -1;
}
- spin_lock( &priv->dp_port_lock );
+ spin_lock(&priv->dp_port_lock);
/* check for throttle; if set, do not resubmit read urb */
/* indicate the read chain needs to be restarted on unthrottle */
throttled = priv->dp_throttled;
- if( throttled )
+ if (throttled)
priv->dp_throttle_restart = 1;
/* receive data */
- if( opcode == DIGI_CMD_RECEIVE_DATA ) {
-
+ if (opcode == DIGI_CMD_RECEIVE_DATA) {
/* get flag from port_status */
flag = 0;
/* overrun is special, not associated with a char */
- if (port_status & DIGI_OVERRUN_ERROR) {
- tty_insert_flip_char( tty, 0, TTY_OVERRUN );
- }
+ if (port_status & DIGI_OVERRUN_ERROR)
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
/* break takes precedence over parity, */
/* which takes precedence over framing errors */
- if (port_status & DIGI_BREAK_ERROR) {
+ if (port_status & DIGI_BREAK_ERROR)
flag = TTY_BREAK;
- } else if (port_status & DIGI_PARITY_ERROR) {
+ else if (port_status & DIGI_PARITY_ERROR)
flag = TTY_PARITY;
- } else if (port_status & DIGI_FRAMING_ERROR) {
+ else if (port_status & DIGI_FRAMING_ERROR)
flag = TTY_FRAME;
- }
/* data length is len-1 (one byte of len is port_status) */
--len;
len = tty_buffer_request_room(tty, len);
- if( len > 0 ) {
+ if (len > 0) {
/* Hot path */
- if(flag == TTY_NORMAL)
+ if (flag == TTY_NORMAL)
tty_insert_flip_string(tty, data, len);
else {
for(i = 0; i < len; i++)
tty_insert_flip_char(tty, data[i], flag);
}
- tty_flip_buffer_push( tty );
+ tty_flip_buffer_push(tty);
}
}
+ spin_unlock(&priv->dp_port_lock);
- spin_unlock( &priv->dp_port_lock );
-
- if( opcode == DIGI_CMD_RECEIVE_DISABLE ) {
- dbg("%s: got RECEIVE_DISABLE", __FUNCTION__ );
- } else if( opcode != DIGI_CMD_RECEIVE_DATA ) {
- dbg("%s: unknown opcode: %d", __FUNCTION__, opcode );
- }
+ if (opcode == DIGI_CMD_RECEIVE_DISABLE)
+ dbg("%s: got RECEIVE_DISABLE", __FUNCTION__);
+ else if (opcode != DIGI_CMD_RECEIVE_DATA)
+ dbg("%s: unknown opcode: %d", __FUNCTION__, opcode);
- return( throttled ? 1 : 0 );
+ return(throttled ? 1 : 0);
}
* -1 if the sanity checks failed.
*/
-static int digi_read_oob_callback( struct urb *urb )
+static int digi_read_oob_callback(struct urb *urb)
{
struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
int opcode, line, status, val;
int i;
-
-dbg( "digi_read_oob_callback: port=%d, len=%d", priv->dp_port_num,
-urb->actual_length );
+ dbg("digi_read_oob_callback: port=%d, len=%d",
+ priv->dp_port_num, urb->actual_length);
/* handle each oob command */
- for( i=0; i<urb->actual_length-3; ) {
-
+ for(i = 0; i < urb->actual_length - 3;) {
opcode = ((unsigned char *)urb->transfer_buffer)[i++];
line = ((unsigned char *)urb->transfer_buffer)[i++];
status = ((unsigned char *)urb->transfer_buffer)[i++];
val = ((unsigned char *)urb->transfer_buffer)[i++];
-dbg( "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d",
-opcode, line, status, val );
+ dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d",
+ opcode, line, status, val);
- if( status != 0 || line >= serial->type->num_ports )
+ if (status != 0 || line >= serial->type->num_ports)
continue;
port = serial->port[line];
- if ((priv=usb_get_serial_port_data(port)) == NULL )
+ if ((priv=usb_get_serial_port_data(port)) == NULL)
return -1;
- if( opcode == DIGI_CMD_READ_INPUT_SIGNALS ) {
-
- spin_lock( &priv->dp_port_lock );
-
+ if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) {
+ spin_lock(&priv->dp_port_lock);
/* convert from digi flags to termiox flags */
- if( val & DIGI_READ_INPUT_SIGNALS_CTS ) {
+ if (val & DIGI_READ_INPUT_SIGNALS_CTS) {
priv->dp_modem_signals |= TIOCM_CTS;
/* port must be open to use tty struct */
- if( port->open_count
- && port->tty->termios->c_cflag & CRTSCTS ) {
+ if (port->open_count
+ && port->tty->termios->c_cflag & CRTSCTS) {
port->tty->hw_stopped = 0;
- digi_wakeup_write( port );
+ digi_wakeup_write(port);
}
} else {
priv->dp_modem_signals &= ~TIOCM_CTS;
/* port must be open to use tty struct */
- if( port->open_count
- && port->tty->termios->c_cflag & CRTSCTS ) {
+ if (port->open_count
+ && port->tty->termios->c_cflag & CRTSCTS) {
port->tty->hw_stopped = 1;
}
}
- if( val & DIGI_READ_INPUT_SIGNALS_DSR )
+ if (val & DIGI_READ_INPUT_SIGNALS_DSR)
priv->dp_modem_signals |= TIOCM_DSR;
else
priv->dp_modem_signals &= ~TIOCM_DSR;
- if( val & DIGI_READ_INPUT_SIGNALS_RI )
+ if (val & DIGI_READ_INPUT_SIGNALS_RI)
priv->dp_modem_signals |= TIOCM_RI;
else
priv->dp_modem_signals &= ~TIOCM_RI;
- if( val & DIGI_READ_INPUT_SIGNALS_DCD )
+ if (val & DIGI_READ_INPUT_SIGNALS_DCD)
priv->dp_modem_signals |= TIOCM_CD;
else
priv->dp_modem_signals &= ~TIOCM_CD;
- wake_up_interruptible( &priv->dp_modem_change_wait );
- spin_unlock( &priv->dp_port_lock );
-
- } else if( opcode == DIGI_CMD_TRANSMIT_IDLE ) {
-
- spin_lock( &priv->dp_port_lock );
+ wake_up_interruptible(&priv->dp_modem_change_wait);
+ spin_unlock(&priv->dp_port_lock);
+ } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) {
+ spin_lock(&priv->dp_port_lock);
priv->dp_transmit_idle = 1;
- wake_up_interruptible( &priv->dp_transmit_idle_wait );
- spin_unlock( &priv->dp_port_lock );
-
- } else if( opcode == DIGI_CMD_IFLUSH_FIFO ) {
-
- wake_up_interruptible( &priv->dp_flush_wait );
-
+ wake_up_interruptible(&priv->dp_transmit_idle_wait);
+ spin_unlock(&priv->dp_port_lock);
+ } else if (opcode == DIGI_CMD_IFLUSH_FIFO) {
+ wake_up_interruptible(&priv->dp_flush_wait);
}
-
}
-
- return( 0 );
+ return 0;
}
-
-static int __init digi_init (void)
+static int __init digi_init(void)
{
int retval;
retval = usb_serial_register(&digi_acceleport_2_device);
return retval;
}
-
static void __exit digi_exit (void)
{
- usb_deregister (&digi_driver);
- usb_serial_deregister (&digi_acceleport_2_device);
- usb_serial_deregister (&digi_acceleport_4_device);
+ usb_deregister(&digi_driver);
+ usb_serial_deregister(&digi_acceleport_2_device);
+ usb_serial_deregister(&digi_acceleport_4_device);
}
module_exit(digi_exit);
-MODULE_AUTHOR( DRIVER_AUTHOR );
-MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(debug, bool, S_IRUGO | S_IWUSR);
projects / linux-2.6 / commitdiff