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Diffstat (limited to 'drivers/usb/serial/whiteheat.c')
-rw-r--r--drivers/usb/serial/whiteheat.c102
1 files changed, 58 insertions, 44 deletions
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 665aa77a917..b07d6a5cac3 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -142,18 +142,18 @@ static int whiteheat_firmware_attach (struct usb_serial *serial);
/* function prototypes for the Connect Tech WhiteHEAT serial converter */
static int whiteheat_attach (struct usb_serial *serial);
static void whiteheat_shutdown (struct usb_serial *serial);
-static int whiteheat_open (struct usb_serial_port *port, struct file *filp);
-static void whiteheat_close (struct usb_serial_port *port, struct file *filp);
-static int whiteheat_write (struct usb_serial_port *port, const unsigned char *buf, int count);
-static int whiteheat_write_room (struct usb_serial_port *port);
-static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
-static void whiteheat_set_termios (struct usb_serial_port *port, struct ktermios * old);
-static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file);
-static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
-static void whiteheat_break_ctl (struct usb_serial_port *port, int break_state);
-static int whiteheat_chars_in_buffer (struct usb_serial_port *port);
-static void whiteheat_throttle (struct usb_serial_port *port);
-static void whiteheat_unthrottle (struct usb_serial_port *port);
+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 int whiteheat_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count);
+static int whiteheat_write_room (struct tty_struct *tty);
+static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg);
+static void whiteheat_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old);
+static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file);
+static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
+static void whiteheat_break_ctl (struct tty_struct *tty, int break_state);
+static int whiteheat_chars_in_buffer (struct tty_struct *tty);
+static void whiteheat_throttle (struct tty_struct *tty);
+static void whiteheat_unthrottle (struct tty_struct *tty);
static void whiteheat_read_callback (struct urb *urb);
static void whiteheat_write_callback (struct urb *urb);
@@ -246,7 +246,7 @@ static void rx_data_softint(struct work_struct *work);
static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize);
static int firm_open(struct usb_serial_port *port);
static int firm_close(struct usb_serial_port *port);
-static int firm_setup_port(struct usb_serial_port *port);
+static int firm_setup_port(struct tty_struct *tty);
static int firm_set_rts(struct usb_serial_port *port, __u8 onoff);
static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff);
static int firm_set_break(struct usb_serial_port *port, __u8 onoff);
@@ -613,7 +613,8 @@ static void whiteheat_shutdown (struct usb_serial *serial)
}
-static int whiteheat_open (struct usb_serial_port *port, struct file *filp)
+static int whiteheat_open (struct tty_struct *tty,
+ struct usb_serial_port *port, struct file *filp)
{
int retval = 0;
struct ktermios old_term;
@@ -624,7 +625,8 @@ static int whiteheat_open (struct usb_serial_port *port, struct file *filp)
if (retval)
goto exit;
- port->tty->low_latency = 1;
+ if (tty)
+ tty->low_latency = 1;
/* send an open port command */
retval = firm_open(port);
@@ -640,9 +642,11 @@ static int whiteheat_open (struct usb_serial_port *port, struct file *filp)
goto exit;
}
- old_term.c_cflag = ~port->tty->termios->c_cflag;
- old_term.c_iflag = ~port->tty->termios->c_iflag;
- whiteheat_set_termios(port, &old_term);
+ if (tty) {
+ old_term.c_cflag = ~tty->termios->c_cflag;
+ old_term.c_iflag = ~tty->termios->c_iflag;
+ whiteheat_set_termios(tty, port, &old_term);
+ }
/* Work around HCD bugs */
usb_clear_halt(port->serial->dev, port->read_urb->pipe);
@@ -663,7 +667,8 @@ exit:
}
-static void whiteheat_close(struct usb_serial_port *port, struct file * filp)
+static void whiteheat_close(struct tty_struct *tty,
+ struct usb_serial_port *port, struct file * filp)
{
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct whiteheat_urb_wrap *wrap;
@@ -681,7 +686,7 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp)
}
mutex_unlock(&port->serial->disc_mutex);
- port->tty->closing = 1;
+ tty->closing = 1;
/*
* Not currently in use; tty_wait_until_sent() calls
@@ -689,12 +694,12 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp)
* 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(port->tty, CLOSING_DELAY);
+ tty_wait_until_sent(tty, CLOSING_DELAY);
}
*/
- tty_driver_flush_buffer(port->tty);
- tty_ldisc_flush(port->tty);
+ tty_driver_flush_buffer(tty);
+ tty_ldisc_flush(tty);
firm_report_tx_done(port);
@@ -728,11 +733,12 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp)
stop_command_port(port->serial);
- port->tty->closing = 0;
+ tty->closing = 0;
}
-static int whiteheat_write(struct usb_serial_port *port, const unsigned char *buf, int count)
+static int whiteheat_write(struct tty_struct *tty,
+ struct usb_serial_port *port, const unsigned char *buf, int count)
{
struct usb_serial *serial = port->serial;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@@ -791,8 +797,9 @@ static int whiteheat_write(struct usb_serial_port *port, const unsigned char *bu
}
-static int whiteheat_write_room(struct usb_serial_port *port)
+static int whiteheat_write_room(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct list_head *tmp;
int room = 0;
@@ -811,8 +818,9 @@ static int whiteheat_write_room(struct usb_serial_port *port)
}
-static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file)
+static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
unsigned int modem_signals = 0;
@@ -828,9 +836,10 @@ static int whiteheat_tiocmget (struct usb_serial_port *port, struct file *file)
}
-static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file,
+static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
dbg("%s - port %d", __func__, port->number);
@@ -851,8 +860,9 @@ static int whiteheat_tiocmset (struct usb_serial_port *port, struct file *file,
}
-static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
{
+ struct usb_serial_port *port = tty->driver_data;
struct serial_struct serstruct;
void __user *user_arg = (void __user *)arg;
@@ -896,20 +906,21 @@ static int whiteheat_ioctl (struct usb_serial_port *port, struct file * file, un
}
-static void whiteheat_set_termios(struct usb_serial_port *port, struct ktermios *old_termios)
+static void whiteheat_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios)
{
- dbg("%s -port %d", __func__, port->number);
- firm_setup_port(port);
+ firm_setup_port(tty);
}
-static void whiteheat_break_ctl(struct usb_serial_port *port, int break_state) {
+static void whiteheat_break_ctl(struct tty_struct *tty, int break_state) {
+ struct usb_serial_port *port = tty->driver_data;
firm_set_break(port, break_state);
}
-static int whiteheat_chars_in_buffer(struct usb_serial_port *port)
+static int whiteheat_chars_in_buffer(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct list_head *tmp;
struct whiteheat_urb_wrap *wrap;
@@ -930,8 +941,9 @@ static int whiteheat_chars_in_buffer(struct usb_serial_port *port)
}
-static void whiteheat_throttle (struct usb_serial_port *port)
+static void whiteheat_throttle (struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
unsigned long flags;
@@ -945,8 +957,9 @@ static void whiteheat_throttle (struct usb_serial_port *port)
}
-static void whiteheat_unthrottle (struct usb_serial_port *port)
+static void whiteheat_unthrottle (struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
int actually_throttled;
unsigned long flags;
@@ -1184,9 +1197,10 @@ static int firm_close(struct usb_serial_port *port) {
}
-static int firm_setup_port(struct usb_serial_port *port) {
+static int firm_setup_port(struct tty_struct *tty) {
+ struct usb_serial_port *port = tty->driver_data;
struct whiteheat_port_settings port_settings;
- unsigned int cflag = port->tty->termios->c_cflag;
+ unsigned int cflag = tty->termios->c_cflag;
port_settings.port = port->number + 1;
@@ -1235,22 +1249,22 @@ static int firm_setup_port(struct usb_serial_port *port) {
(port_settings.hflow & WHITEHEAT_HFLOW_DTR) ? "DTR" : "");
/* determine software flow control */
- if (I_IXOFF(port->tty))
+ if (I_IXOFF(tty))
port_settings.sflow = WHITEHEAT_SFLOW_RXTX;
else
port_settings.sflow = WHITEHEAT_SFLOW_NONE;
dbg("%s - software flow control = %c", __func__, port_settings.sflow);
- port_settings.xon = START_CHAR(port->tty);
- port_settings.xoff = STOP_CHAR(port->tty);
+ port_settings.xon = START_CHAR(tty);
+ port_settings.xoff = STOP_CHAR(tty);
dbg("%s - XON = %2x, XOFF = %2x", __func__, port_settings.xon, port_settings.xoff);
/* get the baud rate wanted */
- port_settings.baud = tty_get_baud_rate(port->tty);
+ port_settings.baud = tty_get_baud_rate(tty);
dbg("%s - baud rate = %d", __func__, port_settings.baud);
/* fixme: should set validated settings */
- tty_encode_baud_rate(port->tty, port_settings.baud, port_settings.baud);
+ tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
/* handle any settings that aren't specified in the tty structure */
port_settings.lloop = 0;
@@ -1426,7 +1440,7 @@ static void rx_data_softint(struct work_struct *work)
struct whiteheat_private *info =
container_of(work, struct whiteheat_private, rx_work);
struct usb_serial_port *port = info->port;
- struct tty_struct *tty = port->tty;
+ struct tty_struct *tty = port->port.tty;
struct whiteheat_urb_wrap *wrap;
struct urb *urb;
unsigned long flags;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-11 11:54:29 +0000