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-rw-r--r--drivers/usb/serial/belkin_sa.c6
-rw-r--r--drivers/usb/serial/ch341.c46
-rw-r--r--drivers/usb/serial/console.c6
-rw-r--r--drivers/usb/serial/cp210x.c6
-rw-r--r--drivers/usb/serial/cyberjack.c6
-rw-r--r--drivers/usb/serial/cypress_m8.c81
-rw-r--r--drivers/usb/serial/digi_acceleport.c75
-rw-r--r--drivers/usb/serial/empeg.c6
-rw-r--r--drivers/usb/serial/ftdi_sio.c50
-rw-r--r--drivers/usb/serial/garmin_gps.c3
-rw-r--r--drivers/usb/serial/generic.c3
-rw-r--r--drivers/usb/serial/io_edgeport.c10
-rw-r--r--drivers/usb/serial/io_ti.c3
-rw-r--r--drivers/usb/serial/ipaq.c6
-rw-r--r--drivers/usb/serial/ipw.c18
-rw-r--r--drivers/usb/serial/ir-usb.c6
-rw-r--r--drivers/usb/serial/iuu_phoenix.c25
-rw-r--r--drivers/usb/serial/keyspan.c13
-rw-r--r--drivers/usb/serial/keyspan.h8
-rw-r--r--drivers/usb/serial/keyspan_pda.c48
-rw-r--r--drivers/usb/serial/kl5kusb105.c6
-rw-r--r--drivers/usb/serial/kobil_sct.c9
-rw-r--r--drivers/usb/serial/mct_u232.c37
-rw-r--r--drivers/usb/serial/mos7720.c3
-rw-r--r--drivers/usb/serial/mos7840.c48
-rw-r--r--drivers/usb/serial/navman.c3
-rw-r--r--drivers/usb/serial/omninet.c6
-rw-r--r--drivers/usb/serial/opticon.c3
-rw-r--r--drivers/usb/serial/option.c68
-rw-r--r--drivers/usb/serial/oti6858.c57
-rw-r--r--drivers/usb/serial/pl2303.c79
-rw-r--r--drivers/usb/serial/sierra.c97
-rw-r--r--drivers/usb/serial/spcp8x5.c85
-rw-r--r--drivers/usb/serial/symbolserial.c3
-rw-r--r--drivers/usb/serial/ti_usb_3410_5052.c6
-rw-r--r--drivers/usb/serial/usb-serial.c144
-rw-r--r--drivers/usb/serial/visor.c6
-rw-r--r--drivers/usb/serial/whiteheat.c33
-rw-r--r--include/linux/usb/serial.h10
39 files changed, 467 insertions, 661 deletions
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index b7eacad4d48..2bfd6dd85b5 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -93,8 +93,7 @@ static int belkin_sa_startup(struct usb_serial *serial);
static void belkin_sa_shutdown(struct usb_serial *serial);
static int belkin_sa_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void belkin_sa_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void belkin_sa_close(struct usb_serial_port *port);
static void belkin_sa_read_int_callback(struct urb *urb);
static void belkin_sa_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios * old);
@@ -244,8 +243,7 @@ exit:
} /* belkin_sa_open */
-static void belkin_sa_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void belkin_sa_close(struct usb_serial_port *port)
{
dbg("%s port %d", __func__, port->number);
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index ab4cc277aa6..2830766f5b3 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -262,32 +262,40 @@ error: kfree(priv);
return r;
}
-static void ch341_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static int ch341_carrier_raised(struct usb_serial_port *port)
+{
+ struct ch341_private *priv = usb_get_serial_port_data(port);
+ if (priv->line_status & CH341_BIT_DCD)
+ return 1;
+ return 0;
+}
+
+static void ch341_dtr_rts(struct usb_serial_port *port, int on)
{
struct ch341_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- unsigned int c_cflag;
dbg("%s - port %d", __func__, port->number);
+ /* drop DTR and RTS */
+ spin_lock_irqsave(&priv->lock, flags);
+ if (on)
+ priv->line_control |= CH341_BIT_RTS | CH341_BIT_DTR;
+ else
+ priv->line_control &= ~(CH341_BIT_RTS | CH341_BIT_DTR);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ch341_set_handshake(port->serial->dev, priv->line_control);
+ wake_up_interruptible(&priv->delta_msr_wait);
+}
+
+static void ch341_close(struct usb_serial_port *port)
+{
+ dbg("%s - port %d", __func__, port->number);
/* shutdown our urbs */
dbg("%s - shutting down urbs", __func__);
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
-
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- if (c_cflag & HUPCL) {
- /* drop DTR and RTS */
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_control = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
- ch341_set_handshake(port->serial->dev, 0);
- }
- }
- wake_up_interruptible(&priv->delta_msr_wait);
}
@@ -302,7 +310,6 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port,
dbg("ch341_open()");
priv->baud_rate = DEFAULT_BAUD_RATE;
- priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR;
r = ch341_configure(serial->dev, priv);
if (r)
@@ -322,7 +329,7 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port,
if (r) {
dev_err(&port->dev, "%s - failed submitting interrupt urb,"
" error %d\n", __func__, r);
- ch341_close(tty, port, NULL);
+ ch341_close(port);
return -EPROTO;
}
@@ -343,9 +350,6 @@ static void ch341_set_termios(struct tty_struct *tty,
dbg("ch341_set_termios()");
- if (!tty || !tty->termios)
- return;
-
baud_rate = tty_get_baud_rate(tty);
priv->baud_rate = baud_rate;
@@ -568,6 +572,8 @@ static struct usb_serial_driver ch341_device = {
.usb_driver = &ch341_driver,
.num_ports = 1,
.open = ch341_open,
+ .dtr_rts = ch341_dtr_rts,
+ .carrier_raised = ch341_carrier_raised,
.close = ch341_close,
.ioctl = ch341_ioctl,
.set_termios = ch341_set_termios,
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 19e24045b13..247b61bfb7f 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -169,7 +169,9 @@ static int usb_console_setup(struct console *co, char *options)
kfree(tty);
}
}
-
+ /* So we know not to kill the hardware on a hangup on this
+ port. We have also bumped the use count by one so it won't go
+ idle */
port->console = 1;
retval = 0;
@@ -182,7 +184,7 @@ free_tty:
kfree(tty);
reset_open_count:
port->port.count = 0;
-goto out;
+ goto out;
}
static void usb_console_write(struct console *co,
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index e8d5133ce9c..d9f586dc6ec 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -36,8 +36,7 @@
static int cp2101_open(struct tty_struct *, struct usb_serial_port *,
struct file *);
static void cp2101_cleanup(struct usb_serial_port *);
-static void cp2101_close(struct tty_struct *, struct usb_serial_port *,
- struct file*);
+static void cp2101_close(struct usb_serial_port *);
static void cp2101_get_termios(struct tty_struct *,
struct usb_serial_port *port);
static void cp2101_get_termios_port(struct usb_serial_port *port,
@@ -398,8 +397,7 @@ static void cp2101_cleanup(struct usb_serial_port *port)
}
}
-static void cp2101_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static void cp2101_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index dd501bb63ed..933ba913e66 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -61,8 +61,7 @@ static int cyberjack_startup(struct usb_serial *serial);
static void cyberjack_shutdown(struct usb_serial *serial);
static int cyberjack_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void cyberjack_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void cyberjack_close(struct usb_serial_port *port);
static int cyberjack_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count);
static int cyberjack_write_room(struct tty_struct *tty);
@@ -185,8 +184,7 @@ static int cyberjack_open(struct tty_struct *tty,
return result;
}
-static void cyberjack_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void cyberjack_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index e568710b263..669f9384853 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -174,8 +174,8 @@ static int cypress_ca42v2_startup(struct usb_serial *serial);
static void cypress_shutdown(struct usb_serial *serial);
static int cypress_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void cypress_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void cypress_close(struct usb_serial_port *port);
+static void cypress_dtr_rts(struct usb_serial_port *port, int on);
static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static void cypress_send(struct usb_serial_port *port);
@@ -218,6 +218,7 @@ static struct usb_serial_driver cypress_earthmate_device = {
.shutdown = cypress_shutdown,
.open = cypress_open,
.close = cypress_close,
+ .dtr_rts = cypress_dtr_rts,
.write = cypress_write,
.write_room = cypress_write_room,
.ioctl = cypress_ioctl,
@@ -244,6 +245,7 @@ static struct usb_serial_driver cypress_hidcom_device = {
.shutdown = cypress_shutdown,
.open = cypress_open,
.close = cypress_close,
+ .dtr_rts = cypress_dtr_rts,
.write = cypress_write,
.write_room = cypress_write_room,
.ioctl = cypress_ioctl,
@@ -270,6 +272,7 @@ static struct usb_serial_driver cypress_ca42v2_device = {
.shutdown = cypress_shutdown,
.open = cypress_open,
.close = cypress_close,
+ .dtr_rts = cypress_dtr_rts,
.write = cypress_write,
.write_room = cypress_write_room,
.ioctl = cypress_ioctl,
@@ -656,11 +659,7 @@ static int cypress_open(struct tty_struct *tty,
priv->rx_flags = 0;
spin_unlock_irqrestore(&priv->lock, flags);
- /* raise both lines and set termios */
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_control = CONTROL_DTR | CONTROL_RTS;
- priv->cmd_ctrl = 1;
- spin_unlock_irqrestore(&priv->lock, flags);
+ /* Set termios */
result = cypress_write(tty, port, NULL, 0);
if (result) {
@@ -694,76 +693,42 @@ static int cypress_open(struct tty_struct *tty,
__func__, result);
cypress_set_dead(port);
}
-
+ port->port.drain_delay = 256;
return result;
} /* cypress_open */
+static void cypress_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct cypress_private *priv = usb_get_serial_port_data(port);
+ /* drop dtr and rts */
+ priv = usb_get_serial_port_data(port);
+ spin_lock_irq(&priv->lock);
+ if (on == 0)
+ priv->line_control = 0;
+ else
+ priv->line_control = CONTROL_DTR | CONTROL_RTS;
+ priv->cmd_ctrl = 1;
+ spin_unlock_irq(&priv->lock);
+ cypress_write(NULL, port, NULL, 0);
+}
-static void cypress_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void cypress_close(struct usb_serial_port *port)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
- unsigned int c_cflag;
- int bps;
- long timeout;
- wait_queue_t wait;
dbg("%s - port %d", __func__, port->number);
- /* wait for data to drain from buffer */
- spin_lock_irq(&priv->lock);
- timeout = CYPRESS_CLOSING_WAIT;
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&tty->write_wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (cypress_buf_data_avail(priv->buf) == 0
- || timeout == 0 || signal_pending(current)
- /* without mutex, allowed due to harmless failure mode */
- || port->serial->disconnected)
- break;
- spin_unlock_irq(&priv->lock);
- timeout = schedule_timeout(timeout);
- spin_lock_irq(&priv->lock);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&tty->write_wait, &wait);
- /* clear out any remaining data in the buffer */
- cypress_buf_clear(priv->buf);
- spin_unlock_irq(&priv->lock);
-
/* writing is potentially harmful, lock must be taken */
mutex_lock(&port->serial->disc_mutex);
if (port->serial->disconnected) {
mutex_unlock(&port->serial->disc_mutex);
return;
}
- /* wait for characters to drain from device */
- if (tty) {
- bps = tty_get_baud_rate(tty);
- if (bps > 1200)
- timeout = max((HZ * 2560) / bps, HZ / 10);
- else
- timeout = 2 * HZ;
- schedule_timeout_interruptible(timeout);
- }
-
+ cypress_buf_clear(priv->buf);
dbg("%s - stopping urbs", __func__);
usb_kill_urb(port->interrupt_in_urb);
usb_kill_urb(port->interrupt_out_urb);
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- if (c_cflag & HUPCL) {
- /* drop dtr and rts */
- priv = usb_get_serial_port_data(port);
- spin_lock_irq(&priv->lock);
- priv->line_control = 0;
- priv->cmd_ctrl = 1;
- spin_unlock_irq(&priv->lock);
- cypress_write(tty, port, NULL, 0);
- }
- }
if (stats)
dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n",
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 38ba4ea8b6b..30f5140eff0 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -422,7 +422,6 @@ struct digi_port {
int dp_throttled;
int dp_throttle_restart;
wait_queue_head_t dp_flush_wait;
- int dp_in_close; /* close in progress */
wait_queue_head_t dp_close_wait; /* wait queue for close */
struct work_struct dp_wakeup_work;
struct usb_serial_port *dp_port;
@@ -456,8 +455,9 @@ static int digi_write_room(struct tty_struct *tty);
static int digi_chars_in_buffer(struct tty_struct *tty);
static int digi_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void digi_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void digi_close(struct usb_serial_port *port);
+static int digi_carrier_raised(struct usb_serial_port *port);
+static void digi_dtr_rts(struct usb_serial_port *port, int on);
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);
@@ -510,6 +510,8 @@ static struct usb_serial_driver digi_acceleport_2_device = {
.num_ports = 3,
.open = digi_open,
.close = digi_close,
+ .dtr_rts = digi_dtr_rts,
+ .carrier_raised = digi_carrier_raised,
.write = digi_write,
.write_room = digi_write_room,
.write_bulk_callback = digi_write_bulk_callback,
@@ -1328,6 +1330,19 @@ static int digi_chars_in_buffer(struct tty_struct *tty)
}
+static void digi_dtr_rts(struct usb_serial_port *port, int on)
+{
+ /* Adjust DTR and RTS */
+ digi_set_modem_signals(port, on * (TIOCM_DTR|TIOCM_RTS), 1);
+}
+
+static int digi_carrier_raised(struct usb_serial_port *port)
+{
+ struct digi_port *priv = usb_get_serial_port_data(port);
+ if (priv->dp_modem_signals & TIOCM_CD)
+ return 1;
+ return 0;
+}
static int digi_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp)
@@ -1336,7 +1351,6 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port,
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->port.count);
@@ -1345,26 +1359,6 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port,
if (digi_startup_device(port->serial) != 0)
return -ENXIO;
- 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;
- }
-
- /* wait for a close in progress to finish */
- 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);
- }
-
- spin_unlock_irqrestore(&priv->dp_port_lock, flags);
-
/* read modem signals automatically whenever they change */
buf[0] = DIGI_CMD_READ_INPUT_SIGNALS;
buf[1] = priv->dp_port_num;
@@ -1387,16 +1381,11 @@ static int digi_open(struct tty_struct *tty, struct usb_serial_port *port,
not_termios.c_iflag = ~tty->termios->c_iflag;
digi_set_termios(tty, port, &not_termios);
}
-
- /* set DTR and RTS */
- digi_set_modem_signals(port, TIOCM_DTR|TIOCM_RTS, 1);
-
return 0;
}
-static void digi_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static void digi_close(struct usb_serial_port *port)
{
DEFINE_WAIT(wait);
int ret;
@@ -1411,28 +1400,9 @@ static void digi_close(struct tty_struct *tty, struct usb_serial_port *port,
if (port->serial->disconnected)
goto exit;
- /* do cleanup only after final close on this port */
- spin_lock_irq(&priv->dp_port_lock);
- priv->dp_in_close = 1;
- spin_unlock_irq(&priv->dp_port_lock);
-
- /* 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);
-
- /* flush driver and line discipline buffers */
- 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);
- /* drop DTR and RTS */
- digi_set_modem_signals(port, 0, 0);
+ /* FIXME: Transmit idle belongs in the wait_unti_sent path */
+ digi_transmit_idle(port, DIGI_CLOSE_TIMEOUT);
/* disable input flow control */
buf[0] = DIGI_CMD_SET_INPUT_FLOW_CONTROL;
@@ -1477,11 +1447,9 @@ static void digi_close(struct tty_struct *tty, struct usb_serial_port *port,
/* shutdown any outstanding bulk writes */
usb_kill_urb(port->write_urb);
}
- tty->closing = 0;
exit:
spin_lock_irq(&priv->dp_port_lock);
priv->dp_write_urb_in_use = 0;
- priv->dp_in_close = 0;
wake_up_interruptible(&priv->dp_close_wait);
spin_unlock_irq(&priv->dp_port_lock);
mutex_unlock(&port->serial->disc_mutex);
@@ -1560,7 +1528,6 @@ static int digi_startup(struct usb_serial *serial)
priv->dp_throttled = 0;
priv->dp_throttle_restart = 0;
init_waitqueue_head(&priv->dp_flush_wait);
- priv->dp_in_close = 0;
init_waitqueue_head(&priv->dp_close_wait);
INIT_WORK(&priv->dp_wakeup_work, digi_wakeup_write_lock);
priv->dp_port = serial->port[i];
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index c709ec474a8..2b141ccb0cd 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -81,8 +81,7 @@ static int debug;
/* function prototypes for an empeg-car player */
static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void empeg_close(struct usb_serial_port *port);
static int empeg_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf,
int count);
@@ -181,8 +180,7 @@ static int empeg_open(struct tty_struct *tty, struct usb_serial_port *port,
}
-static void empeg_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static void empeg_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index d9fcdaedf38..d9d87111f9a 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -719,8 +719,8 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port);
static int ftdi_sio_port_remove(struct usb_serial_port *port);
static int ftdi_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void ftdi_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void ftdi_close(struct usb_serial_port *port);
+static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int ftdi_write_room(struct tty_struct *tty);
@@ -758,6 +758,7 @@ static struct usb_serial_driver ftdi_sio_device = {
.port_remove = ftdi_sio_port_remove,
.open = ftdi_open,
.close = ftdi_close,
+ .dtr_rts = ftdi_dtr_rts,
.throttle = ftdi_throttle,
.unthrottle = ftdi_unthrottle,
.write = ftdi_write,
@@ -1558,6 +1559,30 @@ static int ftdi_open(struct tty_struct *tty,
} /* ftdi_open */
+static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct ftdi_private *priv = usb_get_serial_port_data(port);
+ char buf[1];
+
+ mutex_lock(&port->serial->disc_mutex);
+ if (!port->serial->disconnected) {
+ /* Disable flow control */
+ if (!on && usb_control_msg(port->serial->dev,
+ usb_sndctrlpipe(port->serial->dev, 0),
+ FTDI_SIO_SET_FLOW_CTRL_REQUEST,
+ FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
+ 0, priv->interface, buf, 0,
+ WDR_TIMEOUT) < 0) {
+ dev_err(&port->dev, "error from flowcontrol urb\n");
+ }
+ /* drop RTS and DTR */
+ if (on)
+ set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+ else
+ clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+ }
+ mutex_unlock(&port->serial->disc_mutex);
+}
/*
* usbserial:__serial_close only calls ftdi_close if the point is open
@@ -1567,31 +1592,12 @@ static int ftdi_open(struct tty_struct *tty,
*
*/
-static void ftdi_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void ftdi_close(struct usb_serial_port *port)
{ /* ftdi_close */
- unsigned int c_cflag = tty->termios->c_cflag;
struct ftdi_private *priv = usb_get_serial_port_data(port);
- char buf[1];
dbg("%s", __func__);
- mutex_lock(&port->serial->disc_mutex);
- if (c_cflag & HUPCL && !port->serial->disconnected) {
- /* Disable flow control */
- if (usb_control_msg(port->serial->dev,
- usb_sndctrlpipe(port->serial->dev, 0),
- FTDI_SIO_SET_FLOW_CTRL_REQUEST,
- FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
- 0, priv->interface, buf, 0,
- WDR_TIMEOUT) < 0) {
- dev_err(&port->dev, "error from flowcontrol urb\n");
- }
-
- /* drop RTS and DTR */
- clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
- } /* Note change no line if hupcl is off */
- mutex_unlock(&port->serial->disc_mutex);
/* cancel any scheduled reading */
cancel_delayed_work_sync(&priv->rx_work);
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 586d30ff450..ee25a3fe3b0 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -993,8 +993,7 @@ static int garmin_open(struct tty_struct *tty,
}
-static void garmin_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void garmin_close(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 4cec9906ccf..be82ea95672 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -184,8 +184,7 @@ int usb_serial_generic_resume(struct usb_serial *serial)
}
EXPORT_SYMBOL_GPL(usb_serial_generic_resume);
-void usb_serial_generic_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+void usb_serial_generic_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
generic_cleanup(port);
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index fb4a73d090f..53ef5996e33 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -207,8 +207,7 @@ static void edge_bulk_out_cmd_callback(struct urb *urb);
/* function prototypes for the usbserial callbacks */
static int edge_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void edge_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void edge_close(struct usb_serial_port *port);
static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int edge_write_room(struct tty_struct *tty);
@@ -965,7 +964,7 @@ static int edge_open(struct tty_struct *tty,
if (!edge_port->txfifo.fifo) {
dbg("%s - no memory", __func__);
- edge_close(tty, port, filp);
+ edge_close(port);
return -ENOMEM;
}
@@ -975,7 +974,7 @@ static int edge_open(struct tty_struct *tty,
if (!edge_port->write_urb) {
dbg("%s - no memory", __func__);
- edge_close(tty, port, filp);
+ edge_close(port);
return -ENOMEM;
}
@@ -1099,8 +1098,7 @@ static void block_until_tx_empty(struct edgeport_port *edge_port)
* edge_close
* this function is called by the tty driver when a port is closed
*****************************************************************************/
-static void edge_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void edge_close(struct usb_serial_port *port)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 513b25e044c..eabf20eeb37 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2009,8 +2009,7 @@ release_es_lock:
return status;
}
-static void edge_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void edge_close(struct usb_serial_port *port)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index cd62825a9ac..c610a99fa47 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -76,8 +76,7 @@ static int initial_wait;
/* Function prototypes for an ipaq */
static int ipaq_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void ipaq_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void ipaq_close(struct usb_serial_port *port);
static int ipaq_calc_num_ports(struct usb_serial *serial);
static int ipaq_startup(struct usb_serial *serial);
static void ipaq_shutdown(struct usb_serial *serial);
@@ -714,8 +713,7 @@ error:
}
-static void ipaq_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void ipaq_close(struct usb_serial_port *port)
{
struct ipaq_private *priv = usb_get_serial_port_data(port);
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index da2a2b46644..29ad038b9c8 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -302,23 +302,17 @@ static int ipw_open(struct tty_struct *tty,
return 0;
}
-static void ipw_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void ipw_dtr_rts(struct usb_serial_port *port, int on)
{
struct usb_device *dev = port->serial->dev;
int result;
- if (tty_hung_up_p(filp)) {
- dbg("%s: tty_hung_up_p ...", __func__);
- return;
- }
-
/*--1: drop the dtr */
dbg("%s:dropping dtr", __func__);
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN,
USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_CLRDTR,
+ on ? IPW_PIN_SETDTR : IPW_PIN_CLRDTR,
0,
NULL,
0,
@@ -332,7 +326,7 @@ static void ipw_close(struct tty_struct *tty,
result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
IPW_SIO_SET_PIN, USB_TYPE_VENDOR |
USB_RECIP_INTERFACE | USB_DIR_OUT,
- IPW_PIN_CLRRTS,
+ on ? IPW_PIN_SETRTS : IPW_PIN_CLRRTS,
0,
NULL,
0,
@@ -340,7 +334,12 @@ static void ipw_close(struct tty_struct *tty,
if (result < 0)
dev_err(&port->dev,
"dropping rts failed (error = %d)\n", result);
+}
+static void ipw_close(struct usb_serial_port *port)
+{
+ struct usb_device *dev = port->serial->dev;
+ int result;
/*--3: purge */
dbg("%s:sending purge", __func__);
@@ -461,6 +460,7 @@ static struct usb_serial_driver ipw_device = {
.num_ports = 1,
.open = ipw_open,
.close = ipw_close,
+ .dtr_rts = ipw_dtr_rts,
.port_probe = ipw_probe,
.port_remove = ipw_disconnect,
.write = ipw_write,
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 4e2cda93da5..66009b6b763 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -88,8 +88,7 @@ static int xbof = -1;
static int ir_startup (struct usb_serial *serial);
static int ir_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filep);
-static void ir_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filep);
+static void ir_close(struct usb_serial_port *port);
static int ir_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static void ir_write_bulk_callback (struct urb *urb);
@@ -346,8 +345,7 @@ static int ir_open(struct tty_struct *tty,
return result;
}
-static void ir_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file * filp)
+static void ir_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 4473d442b2a..bb572cee6ec 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -70,7 +70,6 @@ static void read_rxcmd_callback(struct urb *urb);
struct iuu_private {
spinlock_t lock; /* store irq state */
wait_queue_head_t delta_msr_wait;
- u8 line_control;
u8 line_status;
u8 termios_initialized;
int tiostatus; /* store IUART SIGNAL for tiocmget call */
@@ -946,19 +945,10 @@ static int iuu_uart_baud(struct usb_serial_port *port, u32 baud,
return status;
}
-static int set_control_lines(struct usb_device *dev, u8 value)
-{
- return 0;
-}
-
-static void iuu_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void iuu_close(struct usb_serial_port *port)
{
/* iuu_led (port,255,0,0,0); */
struct usb_serial *serial;
- struct iuu_private *priv = usb_get_serial_port_data(port);
- unsigned long flags;
- unsigned int c_cflag;
serial = port->serial;
if (!serial)
@@ -968,17 +958,6 @@ static void iuu_close(struct tty_struct *tty,
iuu_uart_off(port);
if (serial->dev) {
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- if (c_cflag & HUPCL) {
- /* drop DTR and RTS */
- priv = usb_get_serial_port_data(port);
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_control = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
- set_control_lines(port->serial->dev, 0);
- }
- }
/* free writebuf */
/* shutdown our urbs */
dbg("%s - shutting down urbs", __func__);
@@ -1154,7 +1133,7 @@ static int iuu_open(struct tty_struct *tty,
if (result) {
dev_err(&port->dev, "%s - failed submitting read urb,"
" error %d\n", __func__, result);
- iuu_close(tty, port, NULL);
+ iuu_close(port);
return -EPROTO;
} else {
dbg("%s - rxcmd OK", __func__);
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 00daa8f7759..f1195a98f31 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1298,8 +1298,16 @@ static inline void stop_urb(struct urb *urb)
usb_kill_urb(urb);
}
-static void keyspan_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
+
+ p_priv->rts_state = on;
+ p_priv->dtr_state = on;
+ keyspan_send_setup(port, 0);
+}
+
+static void keyspan_close(struct usb_serial_port *port)
{
int i;
struct usb_serial *serial = port->serial;
@@ -1336,7 +1344,6 @@ static void keyspan_close(struct tty_struct *tty,
stop_urb(p_priv->out_urbs[i]);
}
}
- tty_port_tty_set(&port->port, NULL);
}
/* download the firmware to a pre-renumeration device */
diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h
index 38b4582e073..0d4569b6076 100644
--- a/drivers/usb/serial/keyspan.h
+++ b/drivers/usb/serial/keyspan.h
@@ -38,9 +38,8 @@
static int keyspan_open (struct tty_struct *tty,
struct usb_serial_port *port,
struct file *filp);
-static void keyspan_close (struct tty_struct *tty,
- struct usb_serial_port *port,
- struct file *filp);
+static void keyspan_close (struct usb_serial_port *port);
+static void keyspan_dtr_rts (struct usb_serial_port *port, int on);
static int keyspan_startup (struct usb_serial *serial);
static void keyspan_shutdown (struct usb_serial *serial);
static int keyspan_write_room (struct tty_struct *tty);
@@ -562,6 +561,7 @@ static struct usb_serial_driver keyspan_1port_device = {
.num_ports = 1,
.open = keyspan_open,
.close = keyspan_close,
+ .dtr_rts = keyspan_dtr_rts,
.write = keyspan_write,
.write_room = keyspan_write_room,
.set_termios = keyspan_set_termios,
@@ -582,6 +582,7 @@ static struct usb_serial_driver keyspan_2port_device = {
.num_ports = 2,
.open = keyspan_open,
.close = keyspan_close,
+ .dtr_rts = keyspan_dtr_rts,
.write = keyspan_write,
.write_room = keyspan_write_room,
.set_termios = keyspan_set_termios,
@@ -602,6 +603,7 @@ static struct usb_serial_driver keyspan_4port_device = {
.num_ports = 4,
.open = keyspan_open,
.close = keyspan_close,
+ .dtr_rts = keyspan_dtr_rts,
.write = keyspan_write,
.write_room = keyspan_write_room,
.set_termios = keyspan_set_termios,
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index bf1ae247da6..ab769dbea1b 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -651,6 +651,35 @@ static int keyspan_pda_chars_in_buffer(struct tty_struct *tty)
}
+static void keyspan_pda_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct usb_serial *serial = port->serial;
+
+ if (serial->dev) {
+ if (on)
+ keyspan_pda_set_modem_info(serial, (1<<7) | (1<< 2));
+ else
+ keyspan_pda_set_modem_info(serial, 0);
+ }
+}
+
+static int keyspan_pda_carrier_raised(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ unsigned char modembits;
+
+ /* If we can read the modem status and the DCD is low then
+ carrier is not raised yet */
+ if (keyspan_pda_get_modem_info(serial, &modembits) >= 0) {
+ if (!(modembits & (1>>6)))
+ return 0;
+ }
+ /* Carrier raised, or we failed (eg disconnected) so
+ progress accordingly */
+ return 1;
+}
+
+
static int keyspan_pda_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
@@ -682,13 +711,6 @@ static int keyspan_pda_open(struct tty_struct *tty,
priv->tx_room = room;
priv->tx_throttled = room ? 0 : 1;
- /* the normal serial device seems to always turn on DTR and RTS here,
- so do the same */
- if (tty && (tty->termios->c_cflag & CBAUD))
- keyspan_pda_set_modem_info(serial, (1<<7) | (1<<2));
- else
- keyspan_pda_set_modem_info(serial, 0);
-
/*Start reading from the device*/
port->interrupt_in_urb->dev = serial->dev;
rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
@@ -700,19 +722,11 @@ static int keyspan_pda_open(struct tty_struct *tty,
error:
return rc;
}
-
-
-static void keyspan_pda_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void keyspan_pda_close(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
if (serial->dev) {
- /* the normal serial device seems to always shut
- off DTR and RTS now */
- if (tty->termios->c_cflag & HUPCL)
- keyspan_pda_set_modem_info(serial, 0);
-
/* shutdown our bulk reads and writes */
usb_kill_urb(port->write_urb);
usb_kill_urb(port->interrupt_in_urb);
@@ -839,6 +853,8 @@ static struct usb_serial_driver keyspan_pda_device = {
.usb_driver = &keyspan_pda_driver,
.id_table = id_table_std,
.num_ports = 1,
+ .dtr_rts = keyspan_pda_dtr_rts,
+ .carrier_raised = keyspan_pda_carrier_raised,
.open = keyspan_pda_open,
.close = keyspan_pda_close,
.write = keyspan_pda_write,
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index fcd9082f3e7..fa817c66b3e 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -76,8 +76,7 @@ static int klsi_105_startup(struct usb_serial *serial);
static void klsi_105_shutdown(struct usb_serial *serial);
static int klsi_105_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void klsi_105_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void klsi_105_close(struct usb_serial_port *port);
static int klsi_105_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count);
static void klsi_105_write_bulk_callback(struct urb *urb);
@@ -447,8 +446,7 @@ exit:
} /* klsi_105_open */
-static void klsi_105_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void klsi_105_close(struct usb_serial_port *port)
{
struct klsi_105_private *priv = usb_get_serial_port_data(port);
int rc;
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index c148544953b..6b570498287 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -72,8 +72,7 @@ static int kobil_startup(struct usb_serial *serial);
static void kobil_shutdown(struct usb_serial *serial);
static int kobil_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void kobil_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void kobil_close(struct usb_serial_port *port);
static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int kobil_write_room(struct tty_struct *tty);
@@ -209,7 +208,7 @@ static void kobil_shutdown(struct usb_serial *serial)
for (i = 0; i < serial->num_ports; ++i) {
while (serial->port[i]->port.count > 0)
- kobil_close(NULL, serial->port[i], NULL);
+ kobil_close(serial->port[i]);
kfree(usb_get_serial_port_data(serial->port[i]));
usb_set_serial_port_data(serial->port[i], NULL);
}
@@ -346,11 +345,11 @@ static int kobil_open(struct tty_struct *tty,
}
-static void kobil_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void kobil_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
+ /* FIXME: Add rts/dtr methods */
if (port->write_urb) {
usb_kill_urb(port->write_urb);
usb_free_urb(port->write_urb);
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 82930a7d509..873795548fc 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -95,8 +95,8 @@ static int mct_u232_startup(struct usb_serial *serial);
static void mct_u232_shutdown(struct usb_serial *serial);
static int mct_u232_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void mct_u232_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void mct_u232_close(struct usb_serial_port *port);
+static void mct_u232_dtr_rts(struct usb_serial_port *port, int on);
static void mct_u232_read_int_callback(struct urb *urb);
static void mct_u232_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
@@ -140,6 +140,7 @@ static struct usb_serial_driver mct_u232_device = {
.num_ports = 1,
.open = mct_u232_open,
.close = mct_u232_close,
+ .dtr_rts = mct_u232_dtr_rts,
.throttle = mct_u232_throttle,
.unthrottle = mct_u232_unthrottle,
.read_int_callback = mct_u232_read_int_callback,
@@ -496,29 +497,29 @@ error:
return retval;
} /* mct_u232_open */
-
-static void mct_u232_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void mct_u232_dtr_rts(struct usb_serial_port *port, int on)
{
- unsigned int c_cflag;
unsigned int control_state;
struct mct_u232_private *priv = usb_get_serial_port_data(port);
- dbg("%s port %d", __func__, port->number);
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- mutex_lock(&port->serial->disc_mutex);
- if (c_cflag & HUPCL && !port->serial->disconnected) {
- /* drop DTR and RTS */
- spin_lock_irq(&priv->lock);
+ mutex_lock(&port->serial->disc_mutex);
+ if (!port->serial->disconnected) {
+ /* drop DTR and RTS */
+ spin_lock_irq(&priv->lock);
+ if (on)
+ priv->control_state |= TIOCM_DTR | TIOCM_RTS;
+ else
priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
- control_state = priv->control_state;
- spin_unlock_irq(&priv->lock);
- mct_u232_set_modem_ctrl(port->serial, control_state);
- }
- mutex_unlock(&port->serial->disc_mutex);
+ control_state = priv->control_state;
+ spin_unlock_irq(&priv->lock);
+ mct_u232_set_modem_ctrl(port->serial, control_state);
}
+ mutex_unlock(&port->serial->disc_mutex);
+}
+static void mct_u232_close(struct usb_serial_port *port)
+{
+ dbg("%s port %d", __func__, port->number);
if (port->serial->dev) {
/* shutdown our urbs */
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 24e3b5d4b4d..9e1a013ee7f 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -533,8 +533,7 @@ static int mos7720_chars_in_buffer(struct tty_struct *tty)
return chars;
}
-static void mos7720_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void mos7720_close(struct usb_serial_port *port)
{
struct usb_serial *serial;
struct moschip_port *mos7720_port;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 84fb1dcd30d..10b78a37214 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1135,54 +1135,12 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
}
-/************************************************************************
- *
- * mos7840_block_until_tx_empty
- *
- * This function will block the close until one of the following:
- * 1. TX count are 0
- * 2. The mos7840 has stopped
- * 3. A timeout of 3 seconds without activity has expired
- *
- ************************************************************************/
-static void mos7840_block_until_tx_empty(struct tty_struct *tty,
- struct moschip_port *mos7840_port)
-{
- int timeout = HZ / 10;
- int wait = 30;
- int count;
-
- while (1) {
-
- count = mos7840_chars_in_buffer(tty);
-
- /* Check for Buffer status */
- if (count <= 0)
- return;
-
- /* Block the thread for a while */
- interruptible_sleep_on_timeout(&mos7840_port->wait_chase,
- timeout);
-
- /* No activity.. count down section */
- wait--;
- if (wait == 0) {
- dbg("%s - TIMEOUT", __func__);
- return;
- } else {
- /* Reset timeout value back to seconds */
- wait = 30;
- }
- }
-}
-
/*****************************************************************************
* mos7840_close
* this function is called by the tty driver when a port is closed
*****************************************************************************/
-static void mos7840_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void mos7840_close(struct usb_serial_port *port)
{
struct usb_serial *serial;
struct moschip_port *mos7840_port;
@@ -1223,10 +1181,6 @@ static void mos7840_close(struct tty_struct *tty,
}
}
- if (serial->dev)
- /* flush and block until tx is empty */
- mos7840_block_until_tx_empty(tty, mos7840_port);
-
/* While closing port, shutdown all bulk read, write *
* and interrupt read if they exists */
if (serial->dev) {
diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index bcdcbb82270..f5f3751a888 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -98,8 +98,7 @@ static int navman_open(struct tty_struct *tty,
return result;
}
-static void navman_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void navman_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index df653971272..1104617334f 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -66,8 +66,7 @@ static int debug;
/* function prototypes */
static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void omninet_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void omninet_close(struct usb_serial_port *port);
static void omninet_read_bulk_callback(struct urb *urb);
static void omninet_write_bulk_callback(struct urb *urb);
static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
@@ -189,8 +188,7 @@ static int omninet_open(struct tty_struct *tty,
return result;
}
-static void omninet_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void omninet_close(struct usb_serial_port *port)
{
dbg("%s - port %d", __func__, port->number);
usb_kill_urb(port->read_urb);
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index b500ad10b75..c20480aa975 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -173,8 +173,7 @@ static int opticon_open(struct tty_struct *tty, struct usb_serial_port *port,
return result;
}
-static void opticon_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static void opticon_close(struct usb_serial_port *port)
{
struct opticon_private *priv = usb_get_serial_data(port->serial);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 7817b82889c..a16d69fadba 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -45,8 +45,9 @@
/* Function prototypes */
static int option_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void option_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void option_close(struct usb_serial_port *port);
+static void option_dtr_rts(struct usb_serial_port *port, int on);
+
static int option_startup(struct usb_serial *serial);
static void option_shutdown(struct usb_serial *serial);
static int option_write_room(struct tty_struct *tty);
@@ -61,7 +62,7 @@ static void option_set_termios(struct tty_struct *tty,
static int option_tiocmget(struct tty_struct *tty, struct file *file);
static int option_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
-static int option_send_setup(struct tty_struct *tty, struct usb_serial_port *port);
+static int option_send_setup(struct usb_serial_port *port);
static int option_suspend(struct usb_serial *serial, pm_message_t message);
static int option_resume(struct usb_serial *serial);
@@ -551,6 +552,7 @@ static struct usb_serial_driver option_1port_device = {
.num_ports = 1,
.open = option_open,
.close = option_close,
+ .dtr_rts = option_dtr_rts,
.write = option_write,
.write_room = option_write_room,
.chars_in_buffer = option_chars_in_buffer,
@@ -630,7 +632,7 @@ static void option_set_termios(struct tty_struct *tty,
dbg("%s", __func__);
/* Doesn't support option setting */
tty_termios_copy_hw(tty->termios, old_termios);
- option_send_setup(tty, port);
+ option_send_setup(port);
}
static int option_tiocmget(struct tty_struct *tty, struct file *file)
@@ -669,7 +671,7 @@ static int option_tiocmset(struct tty_struct *tty, struct file *file,
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
- return option_send_setup(tty, port);
+ return option_send_setup(port);
}
/* Write */
@@ -897,10 +899,6 @@ static int option_open(struct tty_struct *tty,
dbg("%s", __func__);
- /* Set some sane defaults */
- portdata->rts_state = 1;
- portdata->dtr_state = 1;
-
/* Reset low level data toggle and start reading from endpoints */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
@@ -936,37 +934,43 @@ static int option_open(struct tty_struct *tty,
usb_pipeout(urb->pipe), 0); */
}
- option_send_setup(tty, port);
+ option_send_setup(port);
return 0;
}
-static void option_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void option_dtr_rts(struct usb_serial_port *port, int on)
{
- int i;
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
+ mutex_lock(&serial->disc_mutex);
+ portdata->rts_state = on;
+ portdata->dtr_state = on;
+ if (serial->dev)
+ option_send_setup(port);
+ mutex_unlock(&serial->disc_mutex);
+}
- portdata->rts_state = 0;
- portdata->dtr_state = 0;
- if (serial->dev) {
- mutex_lock(&serial->disc_mutex);
- if (!serial->disconnected)
- option_send_setup(tty, port);
- mutex_unlock(&serial->disc_mutex);
+static void option_close(struct usb_serial_port *port)
+{
+ int i;
+ struct usb_serial *serial = port->serial;
+ struct option_port_private *portdata;
+
+ dbg("%s", __func__);
+ portdata = usb_get_serial_port_data(port);
+ if (serial->dev) {
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
}
- tty_port_tty_set(&port->port, NULL);
}
/* Helper functions used by option_setup_urbs */
@@ -1032,28 +1036,24 @@ static void option_setup_urbs(struct usb_serial *serial)
* This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
* CDC.
*/
-static int option_send_setup(struct tty_struct *tty,
- struct usb_serial_port *port)
+static int option_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
+ int val = 0;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
- if (tty) {
- int val = 0;
- if (portdata->dtr_state)
- val |= 0x01;
- if (portdata->rts_state)
- val |= 0x02;
+ if (portdata->dtr_state)
+ val |= 0x01;
+ if (portdata->rts_state)
+ val |= 0x02;
- return usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- 0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
- }
- return 0;
+ return usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ 0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT);
}
static int option_startup(struct usb_serial *serial)
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index ba551f00f16..7de54781fe6 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -143,8 +143,7 @@ struct oti6858_control_pkt {
/* function prototypes */
static int oti6858_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void oti6858_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void oti6858_close(struct usb_serial_port *port);
static void oti6858_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static int oti6858_ioctl(struct tty_struct *tty, struct file *file,
@@ -622,67 +621,30 @@ static int oti6858_open(struct tty_struct *tty,
if (result != 0) {
dev_err(&port->dev, "%s(): usb_submit_urb() failed"
" with error %d\n", __func__, result);
- oti6858_close(tty, port, NULL);
+ oti6858_close(port);
return -EPROTO;
}
/* setup termios */
if (tty)
oti6858_set_termios(tty, port, &tmp_termios);
-
+ port->port.drain_delay = 256; /* FIXME: check the FIFO length */
return 0;
}
-static void oti6858_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void oti6858_close(struct usb_serial_port *port)
{
struct oti6858_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- long timeout;
- wait_queue_t wait;
dbg("%s(port = %d)", __func__, port->number);
- /* wait for data to drain from the buffer */
spin_lock_irqsave(&priv->lock, flags);
- timeout = 30 * HZ; /* PL2303_CLOSING_WAIT */
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&tty->write_wait, &wait);
- dbg("%s(): entering wait loop", __func__);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (oti6858_buf_data_avail(priv->buf) == 0
- || timeout == 0 || signal_pending(current)
- || port->serial->disconnected)
- break;
- spin_unlock_irqrestore(&priv->lock, flags);
- timeout = schedule_timeout(timeout);
- spin_lock_irqsave(&priv->lock, flags);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&tty->write_wait, &wait);
- dbg("%s(): after wait loop", __func__);
-
/* clear out any remaining data in the buffer */
oti6858_buf_clear(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
- /* wait for characters to drain from the device */
- /* (this is long enough for the entire 256 byte */
- /* pl2303 hardware buffer to drain with no flow */
- /* control for data rates of 1200 bps or more, */
- /* for lower rates we should really know how much */
- /* data is in the buffer to compute a delay */
- /* that is not unnecessarily long) */
- /* FIXME
- bps = tty_get_baud_rate(tty);
- if (bps > 1200)
- timeout = max((HZ*2560)/bps,HZ/10);
- else
- */
- timeout = 2*HZ;
- schedule_timeout_interruptible(timeout);
- dbg("%s(): after schedule_timeout_interruptible()", __func__);
+ dbg("%s(): after buf_clear()", __func__);
/* cancel scheduled setup */
cancel_delayed_work(&priv->delayed_setup_work);
@@ -694,15 +656,6 @@ static void oti6858_close(struct tty_struct *tty,
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
-
- /*
- if (tty && (tty->termios->c_cflag) & HUPCL) {
- // drop DTR and RTS
- spin_lock_irqsave(&priv->lock, flags);
- priv->pending_setup.control &= ~CONTROL_MASK;
- spin_unlock_irqrestore(&priv->lock, flags);
- }
- */
}
static int oti6858_tiocmset(struct tty_struct *tty, struct file *file,
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 751a533a434..e02dc3d643c 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -652,69 +652,41 @@ static void pl2303_set_termios(struct tty_struct *tty,
kfree(buf);
}
-static void pl2303_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void pl2303_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ u8 control;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ /* Change DTR and RTS */
+ if (on)
+ priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
+ else
+ priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
+ control = priv->line_control;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ set_control_lines(port->serial->dev, control);
+}
+
+static void pl2303_close(struct usb_serial_port *port)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- unsigned int c_cflag;
- int bps;
- long timeout;
- wait_queue_t wait;
dbg("%s - port %d", __func__, port->number);
- /* wait for data to drain from the buffer */
spin_lock_irqsave(&priv->lock, flags);
- timeout = PL2303_CLOSING_WAIT;
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&tty->write_wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (pl2303_buf_data_avail(priv->buf) == 0 ||
- timeout == 0 || signal_pending(current) ||
- port->serial->disconnected)
- break;
- spin_unlock_irqrestore(&priv->lock, flags);
- timeout = schedule_timeout(timeout);
- spin_lock_irqsave(&priv->lock, flags);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&tty->write_wait, &wait);
/* clear out any remaining data in the buffer */
pl2303_buf_clear(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
- /* wait for characters to drain from the device */
- /* (this is long enough for the entire 256 byte */
- /* pl2303 hardware buffer to drain with no flow */
- /* control for data rates of 1200 bps or more, */
- /* for lower rates we should really know how much */
- /* data is in the buffer to compute a delay */
- /* that is not unnecessarily long) */
- bps = tty_get_baud_rate(tty);
- if (bps > 1200)
- timeout = max((HZ*2560)/bps, HZ/10);
- else
- timeout = 2*HZ;
- schedule_timeout_interruptible(timeout);
-
/* shutdown our urbs */
dbg("%s - shutting down urbs", __func__);
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
usb_kill_urb(port->interrupt_in_urb);
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- if (c_cflag & HUPCL) {
- /* drop DTR and RTS */
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_control = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
- set_control_lines(port->serial->dev, 0);
- }
- }
}
static int pl2303_open(struct tty_struct *tty,
@@ -748,7 +720,7 @@ static int pl2303_open(struct tty_struct *tty,
if (result) {
dev_err(&port->dev, "%s - failed submitting read urb,"
" error %d\n", __func__, result);
- pl2303_close(tty, port, NULL);
+ pl2303_close(port);
return -EPROTO;
}
@@ -758,9 +730,10 @@ static int pl2303_open(struct tty_struct *tty,
if (result) {
dev_err(&port->dev, "%s - failed submitting interrupt urb,"
" error %d\n", __func__, result);
- pl2303_close(tty, port, NULL);
+ pl2303_close(port);
return -EPROTO;
}
+ port->port.drain_delay = 256;
return 0;
}
@@ -821,6 +794,14 @@ static int pl2303_tiocmget(struct tty_struct *tty, struct file *file)
return result;
}
+static int pl2303_carrier_raised(struct usb_serial_port *port)
+{
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
+ if (priv->line_status & UART_DCD)
+ return 1;
+ return 0;
+}
+
static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
{
struct pl2303_private *priv = usb_get_serial_port_data(port);
@@ -1125,6 +1106,8 @@ static struct usb_serial_driver pl2303_device = {
.num_ports = 1,
.open = pl2303_open,
.close = pl2303_close,
+ .dtr_rts = pl2303_dtr_rts,
+ .carrier_raised = pl2303_carrier_raised,
.write = pl2303_write,
.ioctl = pl2303_ioctl,
.break_ctl = pl2303_break_ctl,
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 913225c6161..1319b8968d8 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -240,57 +240,39 @@ struct sierra_port_private {
int ri_state;
};
-static int sierra_send_setup(struct tty_struct *tty,
- struct usb_serial_port *port)
+static int sierra_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
__u16 interface = 0;
+ int val = 0;
dev_dbg(&port->dev, "%s", __func__);
portdata = usb_get_serial_port_data(port);
- if (tty) {
- int val = 0;
- if (portdata->dtr_state)
- val |= 0x01;
- if (portdata->rts_state)
- val |= 0x02;
-
- /* If composite device then properly report interface */
- if (serial->num_ports == 1) {
- interface = sierra_calc_interface(serial);
-
- /* Control message is sent only to interfaces with
- * interrupt_in endpoints
- */
- if (port->interrupt_in_urb) {
- /* send control message */
- return usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- 0x22, 0x21, val, interface,
- NULL, 0, USB_CTRL_SET_TIMEOUT);
- }
- }
-
- /* Otherwise the need to do non-composite mapping */
- else {
- if (port->bulk_out_endpointAddress == 2)
- interface = 0;
- else if (port->bulk_out_endpointAddress == 4)
- interface = 1;
- else if (port->bulk_out_endpointAddress == 5)
- interface = 2;
-
- return usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- 0x22, 0x21, val, interface,
- NULL, 0, USB_CTRL_SET_TIMEOUT);
-
- }
+ if (portdata->dtr_state)
+ val |= 0x01;
+ if (portdata->rts_state)
+ val |= 0x02;
+
+ /* If composite device then properly report interface */
+ if (serial->num_ports == 1)
+ interface = sierra_calc_interface(serial);
+
+ /* Otherwise the need to do non-composite mapping */
+ else {
+ if (port->bulk_out_endpointAddress == 2)
+ interface = 0;
+ else if (port->bulk_out_endpointAddress == 4)
+ interface = 1;
+ else if (port->bulk_out_endpointAddress == 5)
+ interface = 2;
}
-
+ return usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ 0x22, 0x21, val, interface,
+ NULL, 0, USB_CTRL_SET_TIMEOUT);
return 0;
}
@@ -299,7 +281,7 @@ static void sierra_set_termios(struct tty_struct *tty,
{
dev_dbg(&port->dev, "%s", __func__);
tty_termios_copy_hw(tty->termios, old_termios);
- sierra_send_setup(tty, port);
+ sierra_send_setup(port);
}
static int sierra_tiocmget(struct tty_struct *tty, struct file *file)
@@ -338,7 +320,7 @@ static int sierra_tiocmset(struct tty_struct *tty, struct file *file,
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
- return sierra_send_setup(tty, port);
+ return sierra_send_setup(port);
}
static void sierra_outdat_callback(struct urb *urb)
@@ -598,7 +580,7 @@ static int sierra_open(struct tty_struct *tty,
}
}
- sierra_send_setup(tty, port);
+ sierra_send_setup(port);
/* start up the interrupt endpoint if we have one */
if (port->interrupt_in_urb) {
@@ -610,32 +592,38 @@ static int sierra_open(struct tty_struct *tty,
return 0;
}
-static void sierra_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void sierra_dtr_rts(struct usb_serial_port *port, int on)
{
- int i;
struct usb_serial *serial = port->serial;
struct sierra_port_private *portdata;
- dev_dbg(&port->dev, "%s", __func__);
portdata = usb_get_serial_port_data(port);
-
- portdata->rts_state = 0;
- portdata->dtr_state = 0;
+ portdata->rts_state = on;
+ portdata->dtr_state = on;
if (serial->dev) {
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
- sierra_send_setup(tty, port);
+ sierra_send_setup(port);
mutex_unlock(&serial->disc_mutex);
+ }
+}
+
+static void sierra_close(struct usb_serial_port *port)
+{
+ int i;
+ struct usb_serial *serial = port->serial;
+ struct sierra_port_private *portdata;
+ dev_dbg(&port->dev, "%s", __func__);
+ portdata = usb_get_serial_port_data(port);
+
+ if (serial->dev) {
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
}
-
usb_kill_urb(port->interrupt_in_urb);
- tty_port_tty_set(&port->port, NULL);
}
static int sierra_startup(struct usb_serial *serial)
@@ -737,6 +725,7 @@ static struct usb_serial_driver sierra_device = {
.probe = sierra_probe,
.open = sierra_open,
.close = sierra_close,
+ .dtr_rts = sierra_dtr_rts,
.write = sierra_write,
.write_room = sierra_write_room,
.set_termios = sierra_set_termios,
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 5e7528cc81a..8f7ed8f1399 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -446,66 +446,47 @@ static void spcp8x5_set_workMode(struct usb_device *dev, u16 value,
"RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret);
}
+static int spcp8x5_carrier_raised(struct usb_serial_port *port)
+{
+ struct spcp8x5_private *priv = usb_get_serial_port_data(port);
+ if (priv->line_status & MSR_STATUS_LINE_DCD)
+ return 1;
+ return 0;
+}
+
+static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct spcp8x5_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ u8 control;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (on)
+ priv->line_control = MCR_CONTROL_LINE_DTR
+ | MCR_CONTROL_LINE_RTS;
+ else
+ priv->line_control &= ~ (MCR_CONTROL_LINE_DTR
+ | MCR_CONTROL_LINE_RTS);
+ control = priv->line_control;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type);
+}
+
/* close the serial port. We should wait for data sending to device 1st and
* then kill all urb. */
-static void spcp8x5_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void spcp8x5_close(struct usb_serial_port *port)
{
struct spcp8x5_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- unsigned int c_cflag;
- int bps;
- long timeout;
- wait_queue_t wait;
int result;
dbg("%s - port %d", __func__, port->number);
- /* wait for data to drain from the buffer */
spin_lock_irqsave(&priv->lock, flags);
- timeout = SPCP8x5_CLOSING_WAIT;
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&tty->write_wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (ringbuf_avail_data(priv->buf) == 0 ||
- timeout == 0 || signal_pending(current))
- break;
- spin_unlock_irqrestore(&priv->lock, flags);
- timeout = schedule_timeout(timeout);
- spin_lock_irqsave(&priv->lock, flags);
- }
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&tty->write_wait, &wait);
-
/* clear out any remaining data in the buffer */
clear_ringbuf(priv->buf);
spin_unlock_irqrestore(&priv->lock, flags);
- /* wait for characters to drain from the device (this is long enough
- * for the entire all byte spcp8x5 hardware buffer to drain with no
- * flow control for data rates of 1200 bps or more, for lower rates we
- * should really know how much data is in the buffer to compute a delay
- * that is not unnecessarily long) */
- bps = tty_get_baud_rate(tty);
- if (bps > 1200)
- timeout = max((HZ*2560) / bps, HZ/10);
- else
- timeout = 2*HZ;
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(timeout);
-
- /* clear control lines */
- if (tty) {
- c_cflag = tty->termios->c_cflag;
- if (c_cflag & HUPCL) {
- spin_lock_irqsave(&priv->lock, flags);
- priv->line_control = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
- spcp8x5_set_ctrlLine(port->serial->dev, 0 , priv->type);
- }
- }
-
/* kill urb */
if (port->write_urb != NULL) {
result = usb_unlink_urb(port->write_urb);
@@ -665,13 +646,6 @@ static int spcp8x5_open(struct tty_struct *tty,
if (ret)
return ret;
- spin_lock_irqsave(&priv->lock, flags);
- if (tty && (tty->termios->c_cflag & CBAUD))
- priv->line_control = MCR_DTR | MCR_RTS;
- else
- priv->line_control = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-
spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type);
/* Setup termios */
@@ -691,9 +665,10 @@ static int spcp8x5_open(struct tty_struct *tty,
port->read_urb->dev = serial->dev;
ret = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (ret) {
- spcp8x5_close(tty, port, NULL);
+ spcp8x5_close(port);
return -EPROTO;
}
+ port->port.drain_delay = 256;
return 0;
}
@@ -1033,6 +1008,8 @@ static struct usb_serial_driver spcp8x5_device = {
.num_ports = 1,
.open = spcp8x5_open,
.close = spcp8x5_close,
+ .dtr_rts = spcp8x5_dtr_rts,
+ .carrier_raised = spcp8x5_carrier_raised,
.write = spcp8x5_write,
.set_termios = spcp8x5_set_termios,
.ioctl = spcp8x5_ioctl,
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 69879e43794..8b07ebc6bae 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -152,8 +152,7 @@ static int symbol_open(struct tty_struct *tty, struct usb_serial_port *port,
return result;
}
-static void symbol_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp)
+static void symbol_close(struct usb_serial_port *port)
{
struct symbol_private *priv = usb_get_serial_data(port->serial);
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 0a64bac306e..42cb04c403b 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -100,8 +100,7 @@ static int ti_startup(struct usb_serial *serial);
static void ti_shutdown(struct usb_serial *serial);
static int ti_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *file);
-static void ti_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *file);
+static void ti_close(struct usb_serial_port *port);
static int ti_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *data, int count);
static int ti_write_room(struct tty_struct *tty);
@@ -647,8 +646,7 @@ release_lock:
}
-static void ti_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *file)
+static void ti_close(struct usb_serial_port *port)
{
struct ti_device *tdev;
struct ti_port *tport;
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index f331e2bde88..1967a7edc10 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -238,9 +238,11 @@ static int serial_open (struct tty_struct *tty, struct file *filp)
goto bailout_interface_put;
mutex_unlock(&serial->disc_mutex);
}
-
mutex_unlock(&port->mutex);
- return 0;
+ /* Now do the correct tty layer semantics */
+ retval = tty_port_block_til_ready(&port->port, tty, filp);
+ if (retval == 0)
+ return 0;
bailout_interface_put:
usb_autopm_put_interface(serial->interface);
@@ -259,64 +261,89 @@ bailout_serial_put:
return retval;
}
-static void serial_close(struct tty_struct *tty, struct file *filp)
+/**
+ * serial_do_down - shut down hardware
+ * @port: port to shut down
+ *
+ * Shut down a USB port unless it is the console. We never shut down the
+ * console hardware as it will always be in use.
+ *
+ * Don't free any resources at this point
+ */
+static void serial_do_down(struct usb_serial_port *port)
{
- struct usb_serial_port *port = tty->driver_data;
+ struct usb_serial_driver *drv = port->serial->type;
struct usb_serial *serial;
struct module *owner;
- int count;
- if (!port)
+ /* The console is magical, do not hang up the console hardware
+ or there will be tears */
+ if (port->console)
return;
- dbg("%s - port %d", __func__, port->number);
-
mutex_lock(&port->mutex);
serial = port->serial;
owner = serial->type->driver.owner;
- if (port->port.count == 0) {
- mutex_unlock(&port->mutex);
- return;
- }
-
- if (port->port.count == 1)
- /* only call the device specific close if this
- * port is being closed by the last owner. Ensure we do
- * this before we drop the port count. The call is protected
- * by the port mutex
- */
- serial->type->close(tty, port, filp);
-
- if (port->port.count == (port->console ? 2 : 1)) {
- struct tty_struct *tty = tty_port_tty_get(&port->port);
- if (tty) {
- /* We must do this before we drop the port count to
- zero. */
- if (tty->driver_data)
- tty->driver_data = NULL;
- tty_port_tty_set(&port->port, NULL);
- tty_kref_put(tty);
- }
- }
+ if (drv->close)
+ drv->close(port);
- --port->port.count;
- count = port->port.count;
mutex_unlock(&port->mutex);
- put_device(&port->dev);
+}
+
+/**
+ * serial_do_free - free resources post close/hangup
+ * @port: port to free up
+ *
+ * Do the resource freeing and refcount dropping for the port. We must
+ * be careful about ordering and we must avoid freeing up the console.
+ */
+static void serial_do_free(struct usb_serial_port *port)
+{
+ struct usb_serial *serial;
+ struct module *owner;
+
+ /* The console is magical, do not hang up the console hardware
+ or there will be tears */
+ if (port->console)
+ return;
+
+ serial = port->serial;
+ owner = serial->type->driver.owner;
+ put_device(&port->dev);
/* Mustn't dereference port any more */
- if (count == 0) {
- mutex_lock(&serial->disc_mutex);
- if (!serial->disconnected)
- usb_autopm_put_interface(serial->interface);
- mutex_unlock(&serial->disc_mutex);
- }
+ mutex_lock(&serial->disc_mutex);
+ if (!serial->disconnected)
+ usb_autopm_put_interface(serial->interface);
+ mutex_unlock(&serial->disc_mutex);
usb_serial_put(serial);
-
/* Mustn't dereference serial any more */
- if (count == 0)
- module_put(owner);
+ module_put(owner);
+}
+
+static void serial_close(struct tty_struct *tty, struct file *filp)
+{
+ struct usb_serial_port *port = tty->driver_data;
+
+ dbg("%s - port %d", __func__, port->number);
+
+
+ if (tty_port_close_start(&port->port, tty, filp) == 0)
+ return;
+
+ serial_do_down(port);
+ tty_port_close_end(&port->port, tty);
+ tty_port_tty_set(&port->port, NULL);
+ serial_do_free(port);
+}
+
+static void serial_hangup(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ serial_do_down(port);
+ tty_port_hangup(&port->port);
+ serial_do_free(port);
}
static int serial_write(struct tty_struct *tty, const unsigned char *buf,
@@ -648,6 +675,29 @@ static struct usb_serial_driver *search_serial_device(
return NULL;
}
+static int serial_carrier_raised(struct tty_port *port)
+{
+ struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
+ struct usb_serial_driver *drv = p->serial->type;
+ if (drv->carrier_raised)
+ return drv->carrier_raised(p);
+ /* No carrier control - don't block */
+ return 1;
+}
+
+static void serial_dtr_rts(struct tty_port *port, int on)
+{
+ struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
+ struct usb_serial_driver *drv = p->serial->type;
+ if (drv->dtr_rts)
+ drv->dtr_rts(p, on);
+}
+
+static const struct tty_port_operations serial_port_ops = {
+ .carrier_raised = serial_carrier_raised,
+ .dtr_rts = serial_dtr_rts,
+};
+
int usb_serial_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
@@ -841,6 +891,7 @@ int usb_serial_probe(struct usb_interface *interface,
if (!port)
goto probe_error;
tty_port_init(&port->port);
+ port->port.ops = &serial_port_ops;
port->serial = serial;
spin_lock_init(&port->lock);
mutex_init(&port->mutex);
@@ -1071,6 +1122,9 @@ void usb_serial_disconnect(struct usb_interface *interface)
if (port) {
struct tty_struct *tty = tty_port_tty_get(&port->port);
if (tty) {
+ /* The hangup will occur asynchronously but
+ the object refcounts will sort out all the
+ cleanup */
tty_hangup(tty);
tty_kref_put(tty);
}
@@ -1135,6 +1189,7 @@ static const struct tty_operations serial_ops = {
.open = serial_open,
.close = serial_close,
.write = serial_write,
+ .hangup = serial_hangup,
.write_room = serial_write_room,
.ioctl = serial_ioctl,
.set_termios = serial_set_termios,
@@ -1147,6 +1202,7 @@ static const struct tty_operations serial_ops = {
.proc_fops = &serial_proc_fops,
};
+
struct tty_driver *usb_serial_tty_driver;
static int __init usb_serial_init(void)
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 5ac414bda71..b15f1c0e1d4 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -38,8 +38,7 @@
/* function prototypes for a handspring visor */
static int visor_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
-static void visor_close(struct tty_struct *tty, struct usb_serial_port *port,
- struct file *filp);
+static void visor_close(struct usb_serial_port *port);
static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int visor_write_room(struct tty_struct *tty);
@@ -324,8 +323,7 @@ exit:
}
-static void visor_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void visor_close(struct usb_serial_port *port)
{
struct visor_private *priv = usb_get_serial_port_data(port);
unsigned char *transfer_buffer;
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 5335d3211c0..7c7295d09f3 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -147,8 +147,7 @@ static int whiteheat_attach(struct usb_serial *serial);
static void whiteheat_shutdown(struct usb_serial *serial);
static int whiteheat_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
-static void whiteheat_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+static void whiteheat_close(struct usb_serial_port *port);
static int whiteheat_write(struct tty_struct *tty,
struct usb_serial_port *port,
const unsigned char *buf, int count);
@@ -712,8 +711,7 @@ exit:
}
-static void whiteheat_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void whiteheat_close(struct usb_serial_port *port)
{
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct whiteheat_urb_wrap *wrap;
@@ -723,31 +721,7 @@ static void whiteheat_close(struct tty_struct *tty,
dbg("%s - port %d", __func__, port->number);
- mutex_lock(&port->serial->disc_mutex);
- /* filp is NULL when called from usb_serial_disconnect */
- if ((filp && (tty_hung_up_p(filp))) || port->serial->disconnected) {
- mutex_unlock(&port->serial->disc_mutex);
- return;
- }
- mutex_unlock(&port->serial->disc_mutex);
-
- tty->closing = 1;
-
-/*
- * Not currently in use; tty_wait_until_sent() calls
- * serial_chars_in_buffer() which deadlocks on the second semaphore
- * acquisition. This should be fixed at some point. Greg's been
- * notified.
- if ((filp->f_flags & (O_NDELAY | O_NONBLOCK)) == 0) {
- tty_wait_until_sent(tty, CLOSING_DELAY);
- }
-*/
-
- tty_driver_flush_buffer(tty);
- tty_ldisc_flush(tty);
-
firm_report_tx_done(port);
-
firm_close(port);
/* shutdown our bulk reads and writes */
@@ -775,10 +749,7 @@ static void whiteheat_close(struct tty_struct *tty,
}
spin_unlock_irq(&info->lock);
mutex_unlock(&info->deathwarrant);
-
stop_command_port(port->serial);
-
- tty->closing = 0;
}
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 625e9e4639c..8cdfed738fe 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -224,8 +224,7 @@ struct usb_serial_driver {
/* Called by console with tty = NULL and by tty */
int (*open)(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
- void (*close)(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+ void (*close)(struct usb_serial_port *port);
int (*write)(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
/* Called only by the tty layer */
@@ -241,6 +240,10 @@ struct usb_serial_driver {
int (*tiocmget)(struct tty_struct *tty, struct file *file);
int (*tiocmset)(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
+ /* Called by the tty layer for port level work. There may or may not
+ be an attached tty at this point */
+ void (*dtr_rts)(struct usb_serial_port *port, int on);
+ int (*carrier_raised)(struct usb_serial_port *port);
/* USB events */
void (*read_int_callback)(struct urb *urb);
void (*write_int_callback)(struct urb *urb);
@@ -283,8 +286,7 @@ extern int usb_serial_generic_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
extern int usb_serial_generic_write(struct tty_struct *tty,
struct usb_serial_port *port, const unsigned char *buf, int count);
-extern void usb_serial_generic_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp);
+extern void usb_serial_generic_close(struct usb_serial_port *port);
extern int usb_serial_generic_resume(struct usb_serial *serial);
extern int usb_serial_generic_write_room(struct tty_struct *tty);
extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty);