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Commit c6d61269 authored by Alan Cox's avatar Alan Cox Committed by Greg Kroah-Hartman
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digi_acceleport: Drag the driver kicking and screaming into coding style 

- The outbreak of acute bracketitus has been cured
- The belief that brackets should have spaces everywhere likewise
- Various other coding style tweaks
- Use baud rates not Bfoo in the speed setup switch
Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 01e96d28
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Showing with 410 additions and 560 deletions
drivers/usb/serial/digi_acceleport.c
View file @ c6d61269
...@@ -433,38 +433,38 @@ struct digi_port { ...@@ -433,38 +433,38 @@ struct digi_port {
/* Local Function Declarations */ /* 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 void digi_wakeup_write_lock(struct work_struct *work);
static int digi_write_oob_command( struct usb_serial_port *port, static int digi_write_oob_command(struct usb_serial_port *port,
unsigned char *buf, int count, int interruptible ); unsigned char *buf, int count, int interruptible);
static int digi_write_inb_command( struct usb_serial_port *port, static int digi_write_inb_command(struct usb_serial_port *port,
unsigned char *buf, int count, unsigned long timeout ); unsigned char *buf, int count, unsigned long timeout);
static int digi_set_modem_signals( struct usb_serial_port *port, static int digi_set_modem_signals(struct usb_serial_port *port,
unsigned int modem_signals, int interruptible ); unsigned int modem_signals, int interruptible);
static int digi_transmit_idle( struct usb_serial_port *port, static int digi_transmit_idle(struct usb_serial_port *port,
unsigned long timeout ); unsigned long timeout);
static void digi_rx_throttle (struct usb_serial_port *port); static void digi_rx_throttle (struct usb_serial_port *port);
static void digi_rx_unthrottle (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, static void digi_set_termios(struct usb_serial_port *port,
struct ktermios *old_termios ); struct ktermios *old_termios);
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);
static int digi_ioctl( struct usb_serial_port *port, struct file *file, static int digi_ioctl(struct usb_serial_port *port, struct file *file,
unsigned int cmd, unsigned long arg ); unsigned int cmd, unsigned long arg);
static int digi_tiocmget( struct usb_serial_port *port, struct file *file ); static int digi_tiocmget(struct usb_serial_port *port, struct file *file);
static int digi_tiocmset( 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 ); unsigned int set, unsigned int clear);
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);
static void digi_write_bulk_callback( struct urb *urb ); static void digi_write_bulk_callback(struct urb *urb);
static int digi_write_room( struct usb_serial_port *port ); static int digi_write_room(struct usb_serial_port *port);
static int digi_chars_in_buffer( 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 int digi_open(struct usb_serial_port *port, struct file *filp);
static void digi_close( 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_device(struct usb_serial *serial);
static int digi_startup( struct usb_serial *serial ); static int digi_startup(struct usb_serial *serial);
static void digi_shutdown( struct usb_serial *serial ); static void digi_shutdown(struct usb_serial *serial);
static void digi_read_bulk_callback( struct urb *urb ); static void digi_read_bulk_callback(struct urb *urb);
static int digi_read_inb_callback( struct urb *urb ); static int digi_read_inb_callback(struct urb *urb);
static int digi_read_oob_callback( struct urb *urb ); static int digi_read_oob_callback(struct urb *urb);
/* Statics */ /* Statics */
...@@ -576,9 +576,9 @@ static struct usb_serial_driver digi_acceleport_4_device = { ...@@ -576,9 +576,9 @@ static struct usb_serial_driver digi_acceleport_4_device = {
* with the equivalent code. * 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, wait_queue_head_t *q, long timeout,
spinlock_t *lock, unsigned long flags ) spinlock_t *lock, unsigned long flags)
{ {
DEFINE_WAIT(wait); DEFINE_WAIT(wait);
...@@ -600,18 +600,16 @@ static inline long cond_wait_interruptible_timeout_irqrestore( ...@@ -600,18 +600,16 @@ static inline long cond_wait_interruptible_timeout_irqrestore(
static void digi_wakeup_write_lock(struct work_struct *work) static void digi_wakeup_write_lock(struct work_struct *work)
{ {
struct digi_port *priv = struct digi_port *priv = container_of(work, struct digi_port, dp_wakeup_work);
container_of(work, struct digi_port, dp_wakeup_work);
struct usb_serial_port *port = priv->dp_port; struct usb_serial_port *port = priv->dp_port;
unsigned long flags; unsigned long flags;
spin_lock_irqsave(&priv->dp_port_lock, flags);
spin_lock_irqsave( &priv->dp_port_lock, flags ); digi_wakeup_write(port);
digi_wakeup_write( port ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
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); tty_wakeup(port->tty);
} }
...@@ -628,8 +626,8 @@ static void digi_wakeup_write( struct usb_serial_port *port ) ...@@ -628,8 +626,8 @@ static void digi_wakeup_write( struct usb_serial_port *port )
* returned by usb_submit_urb. * returned by usb_submit_urb.
*/ */
static int digi_write_oob_command( struct usb_serial_port *port, static int digi_write_oob_command(struct usb_serial_port *port,
unsigned char *buf, int count, int interruptible ) unsigned char *buf, int count, int interruptible)
{ {
int ret = 0; int ret = 0;
...@@ -638,49 +636,37 @@ static int digi_write_oob_command( struct usb_serial_port *port, ...@@ -638,49 +636,37 @@ static int digi_write_oob_command( struct usb_serial_port *port,
struct digi_port *oob_priv = usb_get_serial_port_data(oob_port); struct digi_port *oob_priv = usb_get_serial_port_data(oob_port);
unsigned long flags = 0; 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) {
spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); while(oob_port->write_urb->status == -EINPROGRESS
|| oob_priv->dp_write_urb_in_use) {
while( count > 0 ) {
while( oob_port->write_urb->status == -EINPROGRESS
|| oob_priv->dp_write_urb_in_use ) {
cond_wait_interruptible_timeout_irqrestore( cond_wait_interruptible_timeout_irqrestore(
&oob_port->write_wait, DIGI_RETRY_TIMEOUT, &oob_port->write_wait, DIGI_RETRY_TIMEOUT,
&oob_priv->dp_port_lock, flags ); &oob_priv->dp_port_lock, flags);
if( interruptible && signal_pending(current) ) { if (interruptible && signal_pending(current))
return( -EINTR ); return -EINTR;
} spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
spin_lock_irqsave( &oob_priv->dp_port_lock, flags );
} }
/* len must be a multiple of 4, so commands are not split */ /* len must be a multiple of 4, so commands are not split */
len = min(count, oob_port->bulk_out_size ); len = min(count, oob_port->bulk_out_size);
if( len > 4 ) if (len > 4)
len &= ~3; 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->transfer_buffer_length = len;
oob_port->write_urb->dev = port->serial->dev; 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; oob_priv->dp_write_urb_in_use = 1;
count -= len; count -= len;
buf += len; buf += len;
} }
}
spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags );
if( ret ) {
err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__,
ret );
} }
spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags);
return( ret ); if (ret)
err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret);
return ret;
} }
...@@ -697,63 +683,58 @@ dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, co ...@@ -697,63 +683,58 @@ dbg( "digi_write_oob_command: TOP: port=%d, count=%d", oob_priv->dp_port_num, co
* error returned by digi_write. * error returned by digi_write.
*/ */
static int digi_write_inb_command( struct usb_serial_port *port, static int digi_write_inb_command(struct usb_serial_port *port,
unsigned char *buf, int count, unsigned long timeout ) unsigned char *buf, int count, unsigned long timeout)
{ {
int ret = 0; int ret = 0;
int len; int len;
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned char *data = port->write_urb->transfer_buffer; unsigned char *data = port->write_urb->transfer_buffer;
unsigned long flags = 0; 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, if (timeout)
count );
if( timeout )
timeout += jiffies; timeout += jiffies;
else else
timeout = ULONG_MAX; timeout = ULONG_MAX;
spin_lock_irqsave( &priv->dp_port_lock, flags ); spin_lock_irqsave(&priv->dp_port_lock, flags);
while(count > 0 && ret == 0) {
while( count > 0 && ret == 0 ) { while((port->write_urb->status == -EINPROGRESS
|| priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) {
while( (port->write_urb->status == -EINPROGRESS
|| priv->dp_write_urb_in_use) && time_before(jiffies, timeout)) {
cond_wait_interruptible_timeout_irqrestore( cond_wait_interruptible_timeout_irqrestore(
&port->write_wait, DIGI_RETRY_TIMEOUT, &port->write_wait, DIGI_RETRY_TIMEOUT,
&priv->dp_port_lock, flags ); &priv->dp_port_lock, flags);
if( signal_pending(current) ) { if (signal_pending(current))
return( -EINTR ); return -EINTR;
} spin_lock_irqsave(&priv->dp_port_lock, flags);
spin_lock_irqsave( &priv->dp_port_lock, flags );
} }
/* len must be a multiple of 4 and small enough to */ /* len must be a multiple of 4 and small enough to */
/* guarantee the write will send buffered data first, */ /* guarantee the write will send buffered data first, */
/* so commands are in order with data and not split */ /* so commands are in order with data and not split */
len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len ); len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len);
if( len > 4 ) if (len > 4)
len &= ~3; len &= ~3;
/* write any buffered data first */ /* 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[0] = DIGI_CMD_SEND_DATA;
data[1] = priv->dp_out_buf_len; data[1] = priv->dp_out_buf_len;
memcpy( data+2, priv->dp_out_buf, memcpy(data + 2, priv->dp_out_buf,
priv->dp_out_buf_len ); priv->dp_out_buf_len);
memcpy( data+2+priv->dp_out_buf_len, buf, len ); memcpy(data + 2 + priv->dp_out_buf_len, buf, len);
port->write_urb->transfer_buffer_length port->write_urb->transfer_buffer_length
= priv->dp_out_buf_len+2+len; = priv->dp_out_buf_len + 2 + len;
} else { } else {
memcpy( data, buf, len ); memcpy(data, buf, len);
port->write_urb->transfer_buffer_length = len; port->write_urb->transfer_buffer_length = len;
} }
port->write_urb->dev = port->serial->dev; 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_write_urb_in_use = 1;
priv->dp_out_buf_len = 0; priv->dp_out_buf_len = 0;
count -= len; count -= len;
...@@ -761,16 +742,12 @@ count ); ...@@ -761,16 +742,12 @@ count );
} }
} }
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",
if( ret ) { __FUNCTION__, ret, priv->dp_port_num);
err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, return ret;
ret, priv->dp_port_num );
}
return( ret );
} }
...@@ -784,8 +761,8 @@ count ); ...@@ -784,8 +761,8 @@ count );
* returned by usb_submit_urb. * returned by usb_submit_urb.
*/ */
static int digi_set_modem_signals( struct usb_serial_port *port, static int digi_set_modem_signals(struct usb_serial_port *port,
unsigned int modem_signals, int interruptible ) unsigned int modem_signals, int interruptible)
{ {
int ret; int ret;
...@@ -796,60 +773,47 @@ static int digi_set_modem_signals( struct usb_serial_port *port, ...@@ -796,60 +773,47 @@ static int digi_set_modem_signals( struct usb_serial_port *port,
unsigned long flags = 0; unsigned long flags = 0;
dbg( "digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x", dbg("digi_set_modem_signals: TOP: port=%d, modem_signals=0x%x",
port_priv->dp_port_num, modem_signals ); port_priv->dp_port_num, modem_signals);
spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
spin_lock( &port_priv->dp_port_lock ); spin_lock(&port_priv->dp_port_lock);
while( oob_port->write_urb->status == -EINPROGRESS while(oob_port->write_urb->status == -EINPROGRESS || oob_priv->dp_write_urb_in_use) {
|| oob_priv->dp_write_urb_in_use ) { spin_unlock(&port_priv->dp_port_lock);
spin_unlock( &port_priv->dp_port_lock );
cond_wait_interruptible_timeout_irqrestore( cond_wait_interruptible_timeout_irqrestore(
&oob_port->write_wait, DIGI_RETRY_TIMEOUT, &oob_port->write_wait, DIGI_RETRY_TIMEOUT,
&oob_priv->dp_port_lock, flags ); &oob_priv->dp_port_lock, flags);
if( interruptible && signal_pending(current) ) { if (interruptible && signal_pending(current))
return( -EINTR ); return -EINTR;
} spin_lock_irqsave(&oob_priv->dp_port_lock, flags);
spin_lock_irqsave( &oob_priv->dp_port_lock, flags ); spin_lock(&port_priv->dp_port_lock);
spin_lock( &port_priv->dp_port_lock );
} }
data[0] = DIGI_CMD_SET_DTR_SIGNAL; data[0] = DIGI_CMD_SET_DTR_SIGNAL;
data[1] = port_priv->dp_port_num; data[1] = port_priv->dp_port_num;
data[2] = (modem_signals&TIOCM_DTR) ? data[2] = (modem_signals&TIOCM_DTR) ? DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE;
DIGI_DTR_ACTIVE : DIGI_DTR_INACTIVE;
data[3] = 0; data[3] = 0;
data[4] = DIGI_CMD_SET_RTS_SIGNAL; data[4] = DIGI_CMD_SET_RTS_SIGNAL;
data[5] = port_priv->dp_port_num; data[5] = port_priv->dp_port_num;
data[6] = (modem_signals&TIOCM_RTS) ? data[6] = (modem_signals&TIOCM_RTS) ? DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE;
DIGI_RTS_ACTIVE : DIGI_RTS_INACTIVE;
data[7] = 0; data[7] = 0;
oob_port->write_urb->transfer_buffer_length = 8; oob_port->write_urb->transfer_buffer_length = 8;
oob_port->write_urb->dev = port->serial->dev; 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; oob_priv->dp_write_urb_in_use = 1;
port_priv->dp_modem_signals = port_priv->dp_modem_signals =
(port_priv->dp_modem_signals&~(TIOCM_DTR|TIOCM_RTS)) (port_priv->dp_modem_signals&~(TIOCM_DTR|TIOCM_RTS))
| (modem_signals&(TIOCM_DTR|TIOCM_RTS)); | (modem_signals&(TIOCM_DTR|TIOCM_RTS));
} }
spin_unlock(&port_priv->dp_port_lock);
spin_unlock( &port_priv->dp_port_lock ); spin_unlock_irqrestore(&oob_priv->dp_port_lock, flags);
spin_unlock_irqrestore( &oob_priv->dp_port_lock, flags ); if (ret)
err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__, ret);
if( ret ) { return ret;
err("%s: usb_submit_urb failed, ret=%d", __FUNCTION__,
ret );
}
return( ret );
} }
/* /*
* Digi Transmit Idle * Digi Transmit Idle
* *
...@@ -862,203 +826,182 @@ port_priv->dp_port_num, modem_signals ); ...@@ -862,203 +826,182 @@ port_priv->dp_port_num, modem_signals );
* port at a time, so its ok. * port at a time, so its ok.
*/ */
static int digi_transmit_idle( struct usb_serial_port *port, static int digi_transmit_idle(struct usb_serial_port *port,
unsigned long timeout ) unsigned long timeout)
{ {
int ret; int ret;
unsigned char buf[2]; unsigned char buf[2];
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0; 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; 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[0] = DIGI_CMD_TRANSMIT_IDLE;
buf[1] = 0; buf[1] = 0;
timeout += jiffies; timeout += jiffies;
if( (ret=digi_write_inb_command( port, buf, 2, timeout-jiffies )) != 0 ) if ((ret = digi_write_inb_command(port, buf, 2, timeout - jiffies)) != 0)
return( ret ); 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( cond_wait_interruptible_timeout_irqrestore(
&priv->dp_transmit_idle_wait, DIGI_RETRY_TIMEOUT, &priv->dp_transmit_idle_wait, DIGI_RETRY_TIMEOUT,
&priv->dp_port_lock, flags ); &priv->dp_port_lock, flags);
if( signal_pending(current) ) { if (signal_pending(current))
return( -EINTR ); return -EINTR;
} spin_lock_irqsave(&priv->dp_port_lock, flags);
spin_lock_irqsave( &priv->dp_port_lock, flags );
} }
priv->dp_transmit_idle = 0; priv->dp_transmit_idle = 0;
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return 0;
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; unsigned long flags;
struct digi_port *priv = usb_get_serial_port_data(port); 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 */ /* 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_throttled = 1;
priv->dp_throttle_restart = 0; 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; int ret = 0;
unsigned long flags; unsigned long flags;
struct digi_port *priv = usb_get_serial_port_data(port); 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 */ /* turn throttle off */
priv->dp_throttled = 0; priv->dp_throttled = 0;
priv->dp_throttle_restart = 0; priv->dp_throttle_restart = 0;
/* restart read chain */ /* restart read chain */
if( priv->dp_throttle_restart ) { if (priv->dp_throttle_restart) {
port->read_urb->dev = port->serial->dev; 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 ); 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 );
}
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, static void digi_set_termios(struct usb_serial_port *port,
struct ktermios *old_termios ) struct ktermios *old_termios)
{ {
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned int iflag = port->tty->termios->c_iflag; struct tty_struct *tty = port->tty;
unsigned int cflag = port->tty->termios->c_cflag; 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_iflag = old_termios->c_iflag;
unsigned int old_cflag = old_termios->c_cflag; unsigned int old_cflag = old_termios->c_cflag;
unsigned char buf[32]; unsigned char buf[32];
unsigned int modem_signals; unsigned int modem_signals;
int arg,ret; int arg,ret;
int i = 0; 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 */ /* set baud rate */
if( (cflag&CBAUD) != (old_cflag&CBAUD) ) { if ((baud = tty_get_baud_rate(tty)) != tty_termios_baud_rate(old_termios)) {
arg = -1; arg = -1;
/* reassert DTR and (maybe) RTS on transition from B0 */ /* 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 */ /* don't set RTS if using hardware flow control */
/* and throttling input */ /* and throttling input */
modem_signals = TIOCM_DTR; modem_signals = TIOCM_DTR;
if( !(port->tty->termios->c_cflag & CRTSCTS) || if (!(tty->termios->c_cflag & CRTSCTS) ||
!test_bit(TTY_THROTTLED, &port->tty->flags) ) { !test_bit(TTY_THROTTLED, &tty->flags))
modem_signals |= TIOCM_RTS; modem_signals |= TIOCM_RTS;
} digi_set_modem_signals(port, modem_signals, 1);
digi_set_modem_signals( port, modem_signals, 1 );
} }
switch (baud) {
switch( (cflag&CBAUD) ) {
/* drop DTR and RTS on transition to B0 */ /* drop DTR and RTS on transition to B0 */
case B0: digi_set_modem_signals( port, 0, 1 ); break; case 0: digi_set_modem_signals(port, 0, 1); break;
case B50: arg = DIGI_BAUD_50; break; case 50: arg = DIGI_BAUD_50; break;
case B75: arg = DIGI_BAUD_75; break; case 75: arg = DIGI_BAUD_75; break;
case B110: arg = DIGI_BAUD_110; break; case 110: arg = DIGI_BAUD_110; break;
case B150: arg = DIGI_BAUD_150; break; case 150: arg = DIGI_BAUD_150; break;
case B200: arg = DIGI_BAUD_200; break; case 200: arg = DIGI_BAUD_200; break;
case B300: arg = DIGI_BAUD_300; break; case 300: arg = DIGI_BAUD_300; break;
case B600: arg = DIGI_BAUD_600; break; case 600: arg = DIGI_BAUD_600; break;
case B1200: arg = DIGI_BAUD_1200; break; case 1200: arg = DIGI_BAUD_1200; break;
case B1800: arg = DIGI_BAUD_1800; break; case 1800: arg = DIGI_BAUD_1800; break;
case B2400: arg = DIGI_BAUD_2400; break; case 2400: arg = DIGI_BAUD_2400; break;
case B4800: arg = DIGI_BAUD_4800; break; case 4800: arg = DIGI_BAUD_4800; break;
case B9600: arg = DIGI_BAUD_9600; break; case 9600: arg = DIGI_BAUD_9600; break;
case B19200: arg = DIGI_BAUD_19200; break; case 19200: arg = DIGI_BAUD_19200; break;
case B38400: arg = DIGI_BAUD_38400; break; case 38400: arg = DIGI_BAUD_38400; break;
case B57600: arg = DIGI_BAUD_57600; break; case 57600: arg = DIGI_BAUD_57600; break;
case B115200: arg = DIGI_BAUD_115200; break; case 115200: arg = DIGI_BAUD_115200; break;
case B230400: arg = DIGI_BAUD_230400; break; case 230400: arg = DIGI_BAUD_230400; break;
case B460800: arg = DIGI_BAUD_460800; break; case 460800: arg = DIGI_BAUD_460800; break;
default: default:
dbg( "digi_set_termios: can't handle baud rate 0x%x", arg = DIGI_BAUD_9600;
(cflag&CBAUD) ); baud = 9600;
break; break;
} }
if (arg != -1) {
if( arg != -1 ) {
buf[i++] = DIGI_CMD_SET_BAUD_RATE; buf[i++] = DIGI_CMD_SET_BAUD_RATE;
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
buf[i++] = 0; buf[i++] = 0;
} }
} }
/* set parity */ /* set parity */
if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) { if ((cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD))) {
if (cflag&PARENB) {
if( (cflag&PARENB) ) { if (cflag&PARODD)
if( (cflag&PARODD) )
arg = DIGI_PARITY_ODD; arg = DIGI_PARITY_ODD;
else else
arg = DIGI_PARITY_EVEN; arg = DIGI_PARITY_EVEN;
} else { } else {
arg = DIGI_PARITY_NONE; arg = DIGI_PARITY_NONE;
} }
buf[i++] = DIGI_CMD_SET_PARITY; buf[i++] = DIGI_CMD_SET_PARITY;
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
buf[i++] = 0; buf[i++] = 0;
} }
/* set word size */ /* set word size */
if( (cflag&CSIZE) != (old_cflag&CSIZE) ) { if ((cflag&CSIZE) != (old_cflag&CSIZE)) {
arg = -1; arg = -1;
switch (cflag&CSIZE) {
switch( (cflag&CSIZE) ) {
case CS5: arg = DIGI_WORD_SIZE_5; break; case CS5: arg = DIGI_WORD_SIZE_5; break;
case CS6: arg = DIGI_WORD_SIZE_6; break; case CS6: arg = DIGI_WORD_SIZE_6; break;
case CS7: arg = DIGI_WORD_SIZE_7; break; case CS7: arg = DIGI_WORD_SIZE_7; break;
case CS8: arg = DIGI_WORD_SIZE_8; break; case CS8: arg = DIGI_WORD_SIZE_8; break;
default: default:
dbg( "digi_set_termios: can't handle word size %d", dbg("digi_set_termios: can't handle word size %d",
(cflag&CSIZE) ); (cflag&CSIZE));
break; break;
} }
if( arg != -1 ) { if (arg != -1) {
buf[i++] = DIGI_CMD_SET_WORD_SIZE; buf[i++] = DIGI_CMD_SET_WORD_SIZE;
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
...@@ -1068,9 +1011,9 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol ...@@ -1068,9 +1011,9 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol
} }
/* set stop bits */ /* 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; arg = DIGI_STOP_BITS_2;
else else
arg = DIGI_STOP_BITS_1; arg = DIGI_STOP_BITS_1;
...@@ -1083,18 +1026,15 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol ...@@ -1083,18 +1026,15 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol
} }
/* set input flow control */ /* set input flow control */
if( (iflag&IXOFF) != (old_iflag&IXOFF) if ((iflag&IXOFF) != (old_iflag&IXOFF)
|| (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) {
arg = 0; arg = 0;
if (iflag&IXOFF)
if( (iflag&IXOFF) )
arg |= DIGI_INPUT_FLOW_CONTROL_XON_XOFF; arg |= DIGI_INPUT_FLOW_CONTROL_XON_XOFF;
else else
arg &= ~DIGI_INPUT_FLOW_CONTROL_XON_XOFF; arg &= ~DIGI_INPUT_FLOW_CONTROL_XON_XOFF;
if( (cflag&CRTSCTS) ) { if (cflag&CRTSCTS) {
arg |= DIGI_INPUT_FLOW_CONTROL_RTS; arg |= DIGI_INPUT_FLOW_CONTROL_RTS;
/* On USB-4 it is necessary to assert RTS prior */ /* On USB-4 it is necessary to assert RTS prior */
...@@ -1107,43 +1047,37 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol ...@@ -1107,43 +1047,37 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol
} else { } else {
arg &= ~DIGI_INPUT_FLOW_CONTROL_RTS; arg &= ~DIGI_INPUT_FLOW_CONTROL_RTS;
} }
buf[i++] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; buf[i++] = DIGI_CMD_SET_INPUT_FLOW_CONTROL;
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
buf[i++] = 0; buf[i++] = 0;
} }
/* set output flow control */ /* set output flow control */
if( (iflag&IXON) != (old_iflag&IXON) if ((iflag&IXON) != (old_iflag&IXON)
|| (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) { || (cflag&CRTSCTS) != (old_cflag&CRTSCTS)) {
arg = 0; arg = 0;
if (iflag&IXON)
if( (iflag&IXON) )
arg |= DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; arg |= DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF;
else else
arg &= ~DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF; arg &= ~DIGI_OUTPUT_FLOW_CONTROL_XON_XOFF;
if( (cflag&CRTSCTS) ) { if (cflag&CRTSCTS) {
arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS; arg |= DIGI_OUTPUT_FLOW_CONTROL_CTS;
} else { } else {
arg &= ~DIGI_OUTPUT_FLOW_CONTROL_CTS; 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++] = DIGI_CMD_SET_OUTPUT_FLOW_CONTROL;
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
buf[i++] = 0; buf[i++] = 0;
} }
/* set receive enable/disable */ /* set receive enable/disable */
if( (cflag&CREAD) != (old_cflag&CREAD) ) { if ((cflag&CREAD) != (old_cflag&CREAD)) {
if (cflag&CREAD)
if( (cflag&CREAD) )
arg = DIGI_ENABLE; arg = DIGI_ENABLE;
else else
arg = DIGI_DISABLE; arg = DIGI_DISABLE;
...@@ -1152,32 +1086,26 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol ...@@ -1152,32 +1086,26 @@ dbg( "digi_set_termios: TOP: port=%d, iflag=0x%x, old_iflag=0x%x, cflag=0x%x, ol
buf[i++] = priv->dp_port_num; buf[i++] = priv->dp_port_num;
buf[i++] = arg; buf[i++] = arg;
buf[i++] = 0; buf[i++] = 0;
} }
if ((ret = digi_write_oob_command(port, buf, i, 1)) != 0)
if( (ret=digi_write_oob_command( port, buf, i, 1 )) != 0 ) dbg("digi_set_termios: write oob failed, ret=%d", ret);
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]; unsigned char buf[4];
buf[0] = DIGI_CMD_BREAK_CONTROL; buf[0] = DIGI_CMD_BREAK_CONTROL;
buf[1] = 2; /* length */ buf[1] = 2; /* length */
buf[2] = break_state ? 1 : 0; buf[2] = break_state ? 1 : 0;
buf[3] = 0; /* pad */ 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); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned int val; unsigned int val;
...@@ -1185,15 +1113,15 @@ static int digi_tiocmget( struct usb_serial_port *port, struct file *file ) ...@@ -1185,15 +1113,15 @@ static int digi_tiocmget( struct usb_serial_port *port, struct file *file )
dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); 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; val = priv->dp_modem_signals;
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return val; return val;
} }
static int digi_tiocmset( 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 ) unsigned int set, unsigned int clear)
{ {
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned int val; unsigned int val;
...@@ -1201,41 +1129,34 @@ static int digi_tiocmset( struct usb_serial_port *port, struct file *file, ...@@ -1201,41 +1129,34 @@ static int digi_tiocmset( struct usb_serial_port *port, struct file *file,
dbg("%s: TOP: port=%d", __FUNCTION__, priv->dp_port_num); 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; val = (priv->dp_modem_signals & ~clear) | set;
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return digi_set_modem_signals( port, val, 1 ); return digi_set_modem_signals(port, val, 1);
} }
static int digi_ioctl( struct usb_serial_port *port, struct file *file, static int digi_ioctl(struct usb_serial_port *port, struct file *file,
unsigned int cmd, unsigned long arg ) unsigned int cmd, unsigned long arg)
{ {
struct digi_port *priv = usb_get_serial_port_data(port); 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) { switch (cmd) {
case TIOCMIWAIT: case TIOCMIWAIT:
/* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/ /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
/* TODO */ /* TODO */
return( 0 ); return 0;
case TIOCGICOUNT: case TIOCGICOUNT:
/* return count of modemline transitions */ /* return count of modemline transitions */
/* TODO */ /* TODO */
return 0; 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; int ret,data_len,new_len;
...@@ -1243,35 +1164,29 @@ static int digi_write( struct usb_serial_port *port, const unsigned char *buf, i ...@@ -1243,35 +1164,29 @@ static int digi_write( struct usb_serial_port *port, const unsigned char *buf, i
unsigned char *data = port->write_urb->transfer_buffer; unsigned char *data = port->write_urb->transfer_buffer;
unsigned long flags = 0; unsigned long flags = 0;
dbg("digi_write: TOP: port=%d, count=%d, in_interrupt=%ld",
dbg( "digi_write: TOP: port=%d, count=%d, in_interrupt=%ld", priv->dp_port_num, count, in_interrupt());
priv->dp_port_num, count, in_interrupt() );
/* copy user data (which can sleep) before getting spin lock */ /* copy user data (which can sleep) before getting spin lock */
count = min( count, port->bulk_out_size-2 ); count = min(count, port->bulk_out_size-2);
count = min( 64, count); count = min(64, count);
/* be sure only one write proceeds at a time */ /* be sure only one write proceeds at a time */
/* there are races on the port private buffer */ /* there are races on the port private buffer */
/* and races to check write_urb->status */ /* 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 */ /* wait for urb status clear to submit another urb */
if( port->write_urb->status == -EINPROGRESS if (port->write_urb->status == -EINPROGRESS || priv->dp_write_urb_in_use) {
|| priv->dp_write_urb_in_use ) {
/* buffer data if count is 1 (probably put_char) if possible */ /* 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; priv->dp_out_buf[priv->dp_out_buf_len++] = *buf;
new_len = 1; new_len = 1;
} else { } else {
new_len = 0; new_len = 0;
} }
spin_unlock_irqrestore(&priv->dp_port_lock, flags);
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); return new_len;
return( new_len );
} }
/* allow space for any buffered data and for new data, up to */ /* allow space for any buffered data and for new data, up to */
...@@ -1279,9 +1194,9 @@ priv->dp_port_num, count, in_interrupt() ); ...@@ -1279,9 +1194,9 @@ priv->dp_port_num, count, in_interrupt() );
new_len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len); new_len = min(count, port->bulk_out_size-2-priv->dp_out_buf_len);
data_len = new_len + priv->dp_out_buf_len; data_len = new_len + priv->dp_out_buf_len;
if( data_len == 0 ) { if (data_len == 0) {
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return( 0 ); return 0;
} }
port->write_urb->transfer_buffer_length = data_len+2; port->write_urb->transfer_buffer_length = data_len+2;
...@@ -1291,32 +1206,29 @@ priv->dp_port_num, count, in_interrupt() ); ...@@ -1291,32 +1206,29 @@ priv->dp_port_num, count, in_interrupt() );
*data++ = data_len; *data++ = data_len;
/* copy in buffered data first */ /* 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; data += priv->dp_out_buf_len;
/* copy in new data */ /* 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; priv->dp_write_urb_in_use = 1;
ret = new_len; ret = new_len;
priv->dp_out_buf_len = 0; priv->dp_out_buf_len = 0;
} }
/* return length of new data written, or error */ /* return length of new data written, or error */
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
if( ret < 0 ) { if (ret < 0)
err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, err("%s: usb_submit_urb failed, ret=%d, port=%d",
ret, priv->dp_port_num ); __FUNCTION__, ret, priv->dp_port_num);
} dbg("digi_write: returning %d", ret);
return ret;
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; struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
...@@ -1326,153 +1238,136 @@ static void digi_write_bulk_callback( struct urb *urb ) ...@@ -1326,153 +1238,136 @@ static void digi_write_bulk_callback( struct urb *urb )
int ret = 0; int ret = 0;
int status = urb->status; 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 */ /* 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", err("%s: port or port->private is NULL, status=%d",
__FUNCTION__, status); __FUNCTION__, status);
return; return;
} }
serial = port->serial; 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", err("%s: serial or serial->private is NULL, status=%d",
__FUNCTION__, status); __FUNCTION__, status);
return; return;
} }
/* handle oob callback */ /* handle oob callback */
if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
dbg( "digi_write_bulk_callback: oob callback" ); dbg("digi_write_bulk_callback: oob callback");
spin_lock( &priv->dp_port_lock ); spin_lock(&priv->dp_port_lock);
priv->dp_write_urb_in_use = 0; priv->dp_write_urb_in_use = 0;
wake_up_interruptible( &port->write_wait ); wake_up_interruptible(&port->write_wait);
spin_unlock( &priv->dp_port_lock ); spin_unlock(&priv->dp_port_lock);
return; return;
} }
/* try to send any buffered data on this port, if it is open */ /* 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; priv->dp_write_urb_in_use = 0;
if( port->open_count && port->write_urb->status != -EINPROGRESS if (port->open_count && port->write_urb->status != -EINPROGRESS
&& priv->dp_out_buf_len > 0 ) { && priv->dp_out_buf_len > 0) {
*((unsigned char *)(port->write_urb->transfer_buffer)) *((unsigned char *)(port->write_urb->transfer_buffer))
= (unsigned char)DIGI_CMD_SEND_DATA; = (unsigned char)DIGI_CMD_SEND_DATA;
*((unsigned char *)(port->write_urb->transfer_buffer)+1) *((unsigned char *)(port->write_urb->transfer_buffer)+1)
= (unsigned char)priv->dp_out_buf_len; = (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; port->write_urb->dev = serial->dev;
memcpy(port->write_urb->transfer_buffer+2, priv->dp_out_buf,
memcpy( port->write_urb->transfer_buffer+2, priv->dp_out_buf, priv->dp_out_buf_len);
priv->dp_out_buf_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; priv->dp_write_urb_in_use = 1;
priv->dp_out_buf_len = 0; priv->dp_out_buf_len = 0;
} }
} }
/* wake up processes sleeping on writes immediately */ /* 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 */ /* also queue up a wakeup at scheduler time, in case we */
/* lost the race in write_chan(). */ /* lost the race in write_chan(). */
schedule_work(&priv->dp_wakeup_work); schedule_work(&priv->dp_wakeup_work);
spin_unlock( &priv->dp_port_lock ); spin_unlock(&priv->dp_port_lock);
if (ret)
if( ret ) { err("%s: usb_submit_urb failed, ret=%d, port=%d",
err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, __FUNCTION__, ret, priv->dp_port_num);
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; int room;
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0; 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; room = 0;
else else
room = port->bulk_out_size - 2 - priv->dp_out_buf_len; room = port->bulk_out_size - 2 - priv->dp_out_buf_len;
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
dbg("digi_write_room: port=%d, room=%d", priv->dp_port_num, room);
dbg( "digi_write_room: port=%d, room=%d", priv->dp_port_num, room ); return 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); struct digi_port *priv = usb_get_serial_port_data(port);
if( port->write_urb->status == -EINPROGRESS if (port->write_urb->status == -EINPROGRESS
|| priv->dp_write_urb_in_use ) { || priv->dp_write_urb_in_use) {
dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, port->bulk_out_size - 2 ); dbg("digi_chars_in_buffer: port=%d, chars=%d",
/* return( port->bulk_out_size - 2 ); */ priv->dp_port_num, port->bulk_out_size - 2);
return( 256 ); /* return(port->bulk_out_size - 2); */
return 256;
} else { } else {
dbg( "digi_chars_in_buffer: port=%d, chars=%d", priv->dp_port_num, priv->dp_out_buf_len ); dbg("digi_chars_in_buffer: port=%d, chars=%d",
return( priv->dp_out_buf_len ); 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; int ret;
unsigned char buf[32]; unsigned char buf[32];
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
struct ktermios not_termios; struct ktermios not_termios;
unsigned long flags = 0; unsigned long flags = 0;
dbg("digi_open: TOP: port=%d, open_count=%d",
dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); priv->dp_port_num, port->open_count);
/* be sure the device is started up */ /* be sure the device is started up */
if( digi_startup_device( port->serial ) != 0 ) if (digi_startup_device(port->serial) != 0)
return( -ENXIO ); 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 */ /* 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 ) { if (priv->dp_in_close && (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) {
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return( -EAGAIN ); return -EAGAIN;
} }
/* wait for a close in progress to finish */ /* wait for a close in progress to finish */
while( priv->dp_in_close ) { while(priv->dp_in_close) {
cond_wait_interruptible_timeout_irqrestore( cond_wait_interruptible_timeout_irqrestore(
&priv->dp_close_wait, DIGI_RETRY_TIMEOUT, &priv->dp_close_wait, DIGI_RETRY_TIMEOUT,
&priv->dp_port_lock, flags ); &priv->dp_port_lock, flags);
if( signal_pending(current) ) { if (signal_pending(current))
return( -EINTR ); return -EINTR;
} spin_lock_irqsave(&priv->dp_port_lock, flags);
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 */ /* read modem signals automatically whenever they change */
buf[0] = DIGI_CMD_READ_INPUT_SIGNALS; buf[0] = DIGI_CMD_READ_INPUT_SIGNALS;
...@@ -1486,23 +1381,22 @@ dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_cou ...@@ -1486,23 +1381,22 @@ dbg( "digi_open: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_cou
buf[6] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[6] = DIGI_FLUSH_TX | DIGI_FLUSH_RX;
buf[7] = 0; buf[7] = 0;
if( (ret=digi_write_oob_command( port, buf, 8, 1 )) != 0 ) if ((ret = digi_write_oob_command(port, buf, 8, 1)) != 0)
dbg( "digi_open: write oob failed, ret=%d", ret ); dbg("digi_open: write oob failed, ret=%d", ret);
/* set termios settings */ /* set termios settings */
not_termios.c_cflag = ~port->tty->termios->c_cflag; not_termios.c_cflag = ~port->tty->termios->c_cflag;
not_termios.c_iflag = ~port->tty->termios->c_iflag; not_termios.c_iflag = ~port->tty->termios->c_iflag;
digi_set_termios( port, &not_termios ); digi_set_termios(port, &not_termios);
/* set DTR and RTS */ /* set DTR and RTS */
digi_set_modem_signals( port, TIOCM_DTR|TIOCM_RTS, 1 ); digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1);
return( 0 );
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); DEFINE_WAIT(wait);
int ret; int ret;
...@@ -1511,40 +1405,37 @@ static void digi_close( struct usb_serial_port *port, struct file *filp ) ...@@ -1511,40 +1405,37 @@ static void digi_close( struct usb_serial_port *port, struct file *filp )
struct digi_port *priv = usb_get_serial_port_data(port); struct digi_port *priv = usb_get_serial_port_data(port);
unsigned long flags = 0; unsigned long flags = 0;
dbg("digi_close: TOP: port=%d, open_count=%d",
dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_count ); priv->dp_port_num, port->open_count);
/* if disconnected, just clear flags */ /* if disconnected, just clear flags */
if (!usb_get_intfdata(port->serial->interface)) if (!usb_get_intfdata(port->serial->interface))
goto exit; goto exit;
/* do cleanup only after final close on this port */ /* 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; 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 */ /* tell line discipline to process only XON/XOFF */
tty->closing = 1; tty->closing = 1;
/* wait for output to drain */ /* wait for output to drain */
if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0)
tty_wait_until_sent( tty, DIGI_CLOSE_TIMEOUT ); tty_wait_until_sent(tty, DIGI_CLOSE_TIMEOUT);
}
/* flush driver and line discipline buffers */ /* flush driver and line discipline buffers */
if( tty->driver->flush_buffer ) if (tty->driver->flush_buffer)
tty->driver->flush_buffer( tty ); tty->driver->flush_buffer(tty);
tty_ldisc_flush(tty); tty_ldisc_flush(tty);
if (port->serial->dev) { if (port->serial->dev) {
/* wait for transmit idle */ /* wait for transmit idle */
if( (filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0 ) { if ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) == 0) {
digi_transmit_idle( port, DIGI_CLOSE_TIMEOUT ); digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT);
} }
/* drop DTR and RTS */ /* drop DTR and RTS */
digi_set_modem_signals( port, 0, 0 ); digi_set_modem_signals(port, 0, 0);
/* disable input flow control */ /* disable input flow control */
buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL; buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL;
...@@ -1576,8 +1467,8 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co ...@@ -1576,8 +1467,8 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co
buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX; buf[18] = DIGI_FLUSH_TX | DIGI_FLUSH_RX;
buf[19] = 0; buf[19] = 0;
if( (ret=digi_write_oob_command( port, buf, 20, 0 )) != 0 ) if ((ret = digi_write_oob_command(port, buf, 20, 0)) != 0)
dbg( "digi_close: write oob failed, ret=%d", ret ); dbg("digi_close: write oob failed, ret=%d", ret);
/* wait for final commands on oob port to complete */ /* wait for final commands on oob port to complete */
prepare_to_wait(&priv->dp_flush_wait, &wait, TASK_INTERRUPTIBLE); prepare_to_wait(&priv->dp_flush_wait, &wait, TASK_INTERRUPTIBLE);
...@@ -1587,17 +1478,14 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co ...@@ -1587,17 +1478,14 @@ dbg( "digi_close: TOP: port=%d, open_count=%d", priv->dp_port_num, port->open_co
/* shutdown any outstanding bulk writes */ /* shutdown any outstanding bulk writes */
usb_kill_urb(port->write_urb); usb_kill_urb(port->write_urb);
} }
tty->closing = 0; tty->closing = 0;
exit: 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_write_urb_in_use = 0;
priv->dp_in_close = 0; priv->dp_in_close = 0;
wake_up_interruptible( &priv->dp_close_wait ); wake_up_interruptible(&priv->dp_close_wait);
spin_unlock_irqrestore( &priv->dp_port_lock, flags ); spin_unlock_irqrestore(&priv->dp_port_lock, flags);
dbg("digi_close: done");
dbg( "digi_close: done" );
} }
...@@ -1608,155 +1496,136 @@ dbg( "digi_close: done" ); ...@@ -1608,155 +1496,136 @@ dbg( "digi_close: done" );
* urbs initialized. Returns 0 if successful, non-zero error otherwise. * 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; int i,ret = 0;
struct digi_serial *serial_priv = usb_get_serial_data(serial); struct digi_serial *serial_priv = usb_get_serial_data(serial);
struct usb_serial_port *port; struct usb_serial_port *port;
/* be sure this happens exactly once */ /* be sure this happens exactly once */
spin_lock( &serial_priv->ds_serial_lock ); spin_lock(&serial_priv->ds_serial_lock);
if( serial_priv->ds_device_started ) { if (serial_priv->ds_device_started) {
spin_unlock( &serial_priv->ds_serial_lock ); spin_unlock(&serial_priv->ds_serial_lock);
return( 0 ); return 0;
} }
serial_priv->ds_device_started = 1; 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 */ /* start reading from each bulk in endpoint for the device */
/* set USB_DISABLE_SPD flag for write bulk urbs */ /* 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 = serial->port[i];
port->write_urb->dev = port->serial->dev; port->write_urb->dev = port->serial->dev;
if ((ret = usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0) {
if( (ret=usb_submit_urb(port->read_urb, GFP_KERNEL)) != 0 ) { err("%s: usb_submit_urb failed, ret=%d, port=%d",
err("%s: usb_submit_urb failed, ret=%d, port=%d", __FUNCTION__, __FUNCTION__, ret, i);
ret, i );
break; break;
} }
} }
return ret;
return( ret );
} }
static int digi_startup( struct usb_serial *serial ) static int digi_startup(struct usb_serial *serial)
{ {
int i; int i;
struct digi_port *priv; struct digi_port *priv;
struct digi_serial *serial_priv; struct digi_serial *serial_priv;
dbg("digi_startup: TOP");
dbg( "digi_startup: TOP" );
/* allocate the private data structures for all ports */ /* allocate the private data structures for all ports */
/* number of regular ports + 1 for the out-of-band port */ /* 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 */ /* allocate port private structure */
priv = kmalloc( sizeof(struct digi_port), priv = kmalloc(sizeof(struct digi_port), GFP_KERNEL);
GFP_KERNEL ); if (priv == NULL) {
if( priv == (struct digi_port *)0 ) { while (--i >= 0)
while( --i >= 0 ) kfree(usb_get_serial_port_data(serial->port[i]));
kfree( usb_get_serial_port_data(serial->port[i]) ); return 1; /* error */
return( 1 ); /* error */
} }
/* initialize port private structure */ /* 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_port_num = i;
priv->dp_out_buf_len = 0; priv->dp_out_buf_len = 0;
priv->dp_write_urb_in_use = 0; priv->dp_write_urb_in_use = 0;
priv->dp_modem_signals = 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; 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_throttled = 0;
priv->dp_throttle_restart = 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; 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); INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock);
priv->dp_port = serial->port[i]; priv->dp_port = serial->port[i];
/* initialize write wait queue for this port */ /* 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); usb_set_serial_port_data(serial->port[i], priv);
} }
/* allocate serial private structure */ /* allocate serial private structure */
serial_priv = kmalloc( sizeof(struct digi_serial), serial_priv = kmalloc(sizeof(struct digi_serial), GFP_KERNEL);
GFP_KERNEL ); if (serial_priv == NULL) {
if( serial_priv == (struct digi_serial *)0 ) { for (i = 0; i < serial->type->num_ports + 1; i++)
for( i=0; i<serial->type->num_ports+1; i++ ) kfree(usb_get_serial_port_data(serial->port[i]));
kfree( usb_get_serial_port_data(serial->port[i]) ); return 1; /* error */
return( 1 ); /* error */
} }
/* initialize serial private structure */ /* 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_num = serial->type->num_ports;
serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num]; serial_priv->ds_oob_port = serial->port[serial_priv->ds_oob_port_num];
serial_priv->ds_device_started = 0; serial_priv->ds_device_started = 0;
usb_set_serial_data(serial, serial_priv); 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; 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 */ /* 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]->read_urb);
usb_kill_urb(serial->port[i]->write_urb); usb_kill_urb(serial->port[i]->write_urb);
} }
/* free the private data structures for all ports */ /* free the private data structures for all ports */
/* number of regular ports + 1 for the out-of-band port */ /* 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++)
kfree( usb_get_serial_port_data(serial->port[i]) ); kfree(usb_get_serial_port_data(serial->port[i]));
kfree( usb_get_serial_data(serial) ); 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 usb_serial_port *port = (struct usb_serial_port *)urb->context;
struct digi_port *priv; struct digi_port *priv;
struct digi_serial *serial_priv; struct digi_serial *serial_priv;
int ret; int ret;
int status = urb->status; 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 */ /* 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", err("%s: port or port->private is NULL, status=%d",
__FUNCTION__, status); __FUNCTION__, status);
return; return;
} }
if( port->serial == NULL if (port->serial == NULL ||
|| (serial_priv=usb_get_serial_data(port->serial)) == NULL ) { (serial_priv=usb_get_serial_data(port->serial)) == NULL) {
err("%s: serial is bad or serial->private is NULL, status=%d", err("%s: serial is bad or serial->private is NULL, status=%d",
__FUNCTION__, status); __FUNCTION__, status);
return; return;
} }
...@@ -1768,24 +1637,23 @@ dbg( "digi_read_bulk_callback: TOP" ); ...@@ -1768,24 +1637,23 @@ dbg( "digi_read_bulk_callback: TOP" );
} }
/* handle oob or inb callback, do not resubmit if error */ /* handle oob or inb callback, do not resubmit if error */
if( priv->dp_port_num == serial_priv->ds_oob_port_num ) { if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
if( digi_read_oob_callback( urb ) != 0 ) if (digi_read_oob_callback(urb) != 0)
return; return;
} else { } else {
if( digi_read_inb_callback( urb ) != 0 ) if (digi_read_inb_callback(urb) != 0)
return; return;
} }
/* continue read */ /* continue read */
urb->dev = port->serial->dev; urb->dev = port->serial->dev;
if( (ret=usb_submit_urb(urb, GFP_ATOMIC)) != 0 ) { if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
err("%s: failed resubmitting urb, ret=%d, port=%d", __FUNCTION__, err("%s: failed resubmitting urb, ret=%d, port=%d",
ret, priv->dp_port_num ); __FUNCTION__, ret, priv->dp_port_num);
} }
} }
/* /*
* Digi Read INB Callback * Digi Read INB Callback
* *
...@@ -1796,7 +1664,7 @@ dbg( "digi_read_bulk_callback: TOP" ); ...@@ -1796,7 +1664,7 @@ dbg( "digi_read_bulk_callback: TOP" );
* throttled, and -1 if the sanity checks failed. * 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; struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
...@@ -1812,72 +1680,67 @@ static int digi_read_inb_callback( struct urb *urb ) ...@@ -1812,72 +1680,67 @@ static int digi_read_inb_callback( struct urb *urb )
/* do not process callbacks on closed ports */ /* do not process callbacks on closed ports */
/* but do continue the read chain */ /* but do continue the read chain */
if( port->open_count == 0 ) if (port->open_count == 0)
return( 0 ); return 0;
/* short/multiple packet check */ /* short/multiple packet check */
if( urb->actual_length != len + 2 ) { if (urb->actual_length != len + 2) {
err("%s: INCOMPLETE OR MULTIPLE PACKET, urb status=%d, " err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, "
"port=%d, opcode=%d, len=%d, actual_length=%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); 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 */ /* check for throttle; if set, do not resubmit read urb */
/* indicate the read chain needs to be restarted on unthrottle */ /* indicate the read chain needs to be restarted on unthrottle */
throttled = priv->dp_throttled; throttled = priv->dp_throttled;
if( throttled ) if (throttled)
priv->dp_throttle_restart = 1; priv->dp_throttle_restart = 1;
/* receive data */ /* receive data */
if( opcode == DIGI_CMD_RECEIVE_DATA ) { if (opcode == DIGI_CMD_RECEIVE_DATA) {
/* get flag from port_status */ /* get flag from port_status */
flag = 0; flag = 0;
/* overrun is special, not associated with a char */ /* overrun is special, not associated with a char */
if (port_status & DIGI_OVERRUN_ERROR) { if (port_status & DIGI_OVERRUN_ERROR)
tty_insert_flip_char( tty, 0, TTY_OVERRUN ); tty_insert_flip_char(tty, 0, TTY_OVERRUN);
}
/* break takes precedence over parity, */ /* break takes precedence over parity, */
/* which takes precedence over framing errors */ /* which takes precedence over framing errors */
if (port_status & DIGI_BREAK_ERROR) { if (port_status & DIGI_BREAK_ERROR)
flag = TTY_BREAK; flag = TTY_BREAK;
} else if (port_status & DIGI_PARITY_ERROR) { else if (port_status & DIGI_PARITY_ERROR)
flag = TTY_PARITY; flag = TTY_PARITY;
} else if (port_status & DIGI_FRAMING_ERROR) { else if (port_status & DIGI_FRAMING_ERROR)
flag = TTY_FRAME; flag = TTY_FRAME;
}
/* data length is len-1 (one byte of len is port_status) */ /* data length is len-1 (one byte of len is port_status) */
--len; --len;
len = tty_buffer_request_room(tty, len); len = tty_buffer_request_room(tty, len);
if( len > 0 ) { if (len > 0) {
/* Hot path */ /* Hot path */
if(flag == TTY_NORMAL) if (flag == TTY_NORMAL)
tty_insert_flip_string(tty, data, len); tty_insert_flip_string(tty, data, len);
else { else {
for(i = 0; i < len; i++) for(i = 0; i < len; i++)
tty_insert_flip_char(tty, data[i], flag); 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__);
if( opcode == DIGI_CMD_RECEIVE_DISABLE ) { else if (opcode != DIGI_CMD_RECEIVE_DATA)
dbg("%s: got RECEIVE_DISABLE", __FUNCTION__ ); dbg("%s: unknown opcode: %d", __FUNCTION__, opcode);
} else if( opcode != DIGI_CMD_RECEIVE_DATA ) {
dbg("%s: unknown opcode: %d", __FUNCTION__, opcode );
}
return( throttled ? 1 : 0 ); return(throttled ? 1 : 0);
} }
...@@ -1891,7 +1754,7 @@ static int digi_read_inb_callback( struct urb *urb ) ...@@ -1891,7 +1754,7 @@ static int digi_read_inb_callback( struct urb *urb )
* -1 if the sanity checks failed. * -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; struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
...@@ -1900,87 +1763,75 @@ static int digi_read_oob_callback( struct urb *urb ) ...@@ -1900,87 +1763,75 @@ static int digi_read_oob_callback( struct urb *urb )
int opcode, line, status, val; int opcode, line, status, val;
int i; int i;
dbg("digi_read_oob_callback: port=%d, len=%d",
dbg( "digi_read_oob_callback: port=%d, len=%d", priv->dp_port_num, priv->dp_port_num, urb->actual_length);
urb->actual_length );
/* handle each oob command */ /* 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++]; opcode = ((unsigned char *)urb->transfer_buffer)[i++];
line = ((unsigned char *)urb->transfer_buffer)[i++]; line = ((unsigned char *)urb->transfer_buffer)[i++];
status = ((unsigned char *)urb->transfer_buffer)[i++]; status = ((unsigned char *)urb->transfer_buffer)[i++];
val = ((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", dbg("digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d",
opcode, line, status, val ); opcode, line, status, val);
if( status != 0 || line >= serial->type->num_ports ) if (status != 0 || line >= serial->type->num_ports)
continue; continue;
port = serial->port[line]; port = serial->port[line];
if ((priv=usb_get_serial_port_data(port)) == NULL ) if ((priv=usb_get_serial_port_data(port)) == NULL)
return -1; return -1;
if( opcode == DIGI_CMD_READ_INPUT_SIGNALS ) { if (opcode == DIGI_CMD_READ_INPUT_SIGNALS) {
spin_lock(&priv->dp_port_lock);
spin_lock( &priv->dp_port_lock );
/* convert from digi flags to termiox flags */ /* 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; priv->dp_modem_signals |= TIOCM_CTS;
/* port must be open to use tty struct */ /* port must be open to use tty struct */
if( port->open_count if (port->open_count
&& port->tty->termios->c_cflag & CRTSCTS ) { && port->tty->termios->c_cflag & CRTSCTS) {
port->tty->hw_stopped = 0; port->tty->hw_stopped = 0;
digi_wakeup_write( port ); digi_wakeup_write(port);
} }
} else { } else {
priv->dp_modem_signals &= ~TIOCM_CTS; priv->dp_modem_signals &= ~TIOCM_CTS;
/* port must be open to use tty struct */ /* port must be open to use tty struct */
if( port->open_count if (port->open_count
&& port->tty->termios->c_cflag & CRTSCTS ) { && port->tty->termios->c_cflag & CRTSCTS) {
port->tty->hw_stopped = 1; 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; priv->dp_modem_signals |= TIOCM_DSR;
else else
priv->dp_modem_signals &= ~TIOCM_DSR; 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; priv->dp_modem_signals |= TIOCM_RI;
else else
priv->dp_modem_signals &= ~TIOCM_RI; 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; priv->dp_modem_signals |= TIOCM_CD;
else else
priv->dp_modem_signals &= ~TIOCM_CD; priv->dp_modem_signals &= ~TIOCM_CD;
wake_up_interruptible( &priv->dp_modem_change_wait ); wake_up_interruptible(&priv->dp_modem_change_wait);
spin_unlock( &priv->dp_port_lock ); spin_unlock(&priv->dp_port_lock);
} else if (opcode == DIGI_CMD_TRANSMIT_IDLE) {
} else if( opcode == DIGI_CMD_TRANSMIT_IDLE ) { spin_lock(&priv->dp_port_lock);
spin_lock( &priv->dp_port_lock );
priv->dp_transmit_idle = 1; priv->dp_transmit_idle = 1;
wake_up_interruptible( &priv->dp_transmit_idle_wait ); wake_up_interruptible(&priv->dp_transmit_idle_wait);
spin_unlock( &priv->dp_port_lock ); spin_unlock(&priv->dp_port_lock);
} else if (opcode == DIGI_CMD_IFLUSH_FIFO) {
} else if( opcode == DIGI_CMD_IFLUSH_FIFO ) { wake_up_interruptible(&priv->dp_flush_wait);
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; int retval;
retval = usb_serial_register(&digi_acceleport_2_device); retval = usb_serial_register(&digi_acceleport_2_device);
...@@ -2002,12 +1853,11 @@ static int __init digi_init (void) ...@@ -2002,12 +1853,11 @@ static int __init digi_init (void)
return retval; return retval;
} }
static void __exit digi_exit (void) static void __exit digi_exit (void)
{ {
usb_deregister (&digi_driver); usb_deregister(&digi_driver);
usb_serial_deregister (&digi_acceleport_2_device); usb_serial_deregister(&digi_acceleport_2_device);
usb_serial_deregister (&digi_acceleport_4_device); usb_serial_deregister(&digi_acceleport_4_device);
} }
...@@ -2015,8 +1865,8 @@ module_init(digi_init); ...@@ -2015,8 +1865,8 @@ module_init(digi_init);
module_exit(digi_exit); module_exit(digi_exit);
MODULE_AUTHOR( DRIVER_AUTHOR ); MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION( DRIVER_DESC ); MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
module_param(debug, bool, S_IRUGO | S_IWUSR); module_param(debug, bool, S_IRUGO | S_IWUSR);
......
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