add pl2303 bugfixes (thanks to komodo)
SVN-Revision: 2178
This commit is contained in:
Nicolas Thill
parent
dfc0cbfbc8
commit
9f7cdfe0cf
1 changed files with 146 additions and 0 deletions
|
|
@ -0,0 +1,146 @@
|
|||
--- linux/drivers/usb/serial/pl2303.c.orig 2005-10-17 12:09:48.000000000 +0200
|
||||
+++ linux/drivers/usb/serial/pl2303.c 2005-10-19 04:10:46.000000000 +0200
|
||||
@@ -14,6 +14,13 @@
|
||||
* See Documentation/usb/usb-serial.txt for more information on using this driver
|
||||
*
|
||||
*
|
||||
+ * 2005_Oct_19 grsch
|
||||
+ * added some missing ioctl commands
|
||||
+ * it seems that there's still an issue with the 2.6.8 version when
|
||||
+ * using the device with echo "whatever" >/dev/usb/tts/0 .
|
||||
+ * Apparently, a timeout is needed upon pl2303_close (implemented in
|
||||
+ * 2.6.13.4)
|
||||
+ *
|
||||
* 2005_Mar_05 grsch
|
||||
* ported 2.6.8 pl2303.c to 2.4.20 format
|
||||
* (HX model works fine now, ID table should be brought up to date)
|
||||
@@ -142,9 +149,8 @@
|
||||
static int pl2303_write (struct usb_serial_port *port, int from_user,
|
||||
const unsigned char *buf, int count);
|
||||
static void pl2303_break_ctl(struct usb_serial_port *port,int break_state);
|
||||
-static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file);
|
||||
-static int pl2303_tiocmset (struct usb_serial_port *port, struct file *file,
|
||||
- unsigned int set, unsigned int clear);
|
||||
+static int pl2303_tiocmget (struct usb_serial_port *port, unsigned int* value);
|
||||
+static int pl2303_tiocmset (struct usb_serial_port *port, unsigned int cmd, unsigned int *value);
|
||||
static int pl2303_startup (struct usb_serial *serial);
|
||||
static void pl2303_shutdown (struct usb_serial *serial);
|
||||
|
||||
@@ -642,11 +648,108 @@
|
||||
return 0;
|
||||
}
|
||||
|
||||
+
|
||||
+
|
||||
+static int pl2303_tiocmget (struct usb_serial_port *port, unsigned int *value)
|
||||
+{
|
||||
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
|
||||
+ unsigned long flags;
|
||||
+ unsigned int mcr;
|
||||
+ unsigned int status;
|
||||
+ unsigned int result;
|
||||
+
|
||||
+ dbg("%s (%d)", __FUNCTION__, port->number);
|
||||
+
|
||||
+ spin_lock_irqsave (&priv->lock, flags);
|
||||
+ mcr = priv->line_control;
|
||||
+ status = priv->line_status;
|
||||
+ spin_unlock_irqrestore (&priv->lock, flags);
|
||||
+
|
||||
+ result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0)
|
||||
+ | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0)
|
||||
+ | ((status & UART_CTS) ? TIOCM_CTS : 0)
|
||||
+ | ((status & UART_DSR) ? TIOCM_DSR : 0)
|
||||
+ | ((status & UART_RING) ? TIOCM_RI : 0)
|
||||
+ | ((status & UART_DCD) ? TIOCM_CD : 0);
|
||||
+
|
||||
+ dbg("%s - result = %x", __FUNCTION__, result);
|
||||
+
|
||||
+ if (copy_to_user(value, &result, sizeof(int)))
|
||||
+ return -EFAULT;
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+
|
||||
+static int pl2303_tiocmset (struct usb_serial_port *port, unsigned int cmd, unsigned int *value)
|
||||
+{
|
||||
+ /*
|
||||
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
|
||||
+ unsigned long flags;
|
||||
+ u8 control;
|
||||
+
|
||||
+ spin_lock_irqsave (&priv->lock, flags);
|
||||
+ if (set & TIOCM_RTS)
|
||||
+ priv->line_control |= CONTROL_RTS;
|
||||
+ if (set & TIOCM_DTR)
|
||||
+ priv->line_control |= CONTROL_DTR;
|
||||
+ if (clear & TIOCM_RTS)
|
||||
+ priv->line_control &= ~CONTROL_RTS;
|
||||
+ if (clear & TIOCM_DTR)
|
||||
+ priv->line_control &= ~CONTROL_DTR;
|
||||
+ control = priv->line_control;
|
||||
+ spin_unlock_irqrestore (&priv->lock, flags);
|
||||
+
|
||||
+ return set_control_lines (port->serial->dev, control);
|
||||
+ */
|
||||
+ struct pl2303_private *priv = port->private;
|
||||
+ unsigned int arg;
|
||||
+
|
||||
+ if (copy_from_user(&arg, value, sizeof(int)))
|
||||
+ return -EFAULT;
|
||||
+
|
||||
+ switch (cmd) {
|
||||
+ case TIOCMBIS:
|
||||
+ if (arg & TIOCM_RTS)
|
||||
+ priv->line_control |= CONTROL_RTS;
|
||||
+ if (arg & TIOCM_DTR)
|
||||
+ priv->line_control |= CONTROL_DTR;
|
||||
+ break;
|
||||
+
|
||||
+ case TIOCMBIC:
|
||||
+ if (arg & TIOCM_RTS)
|
||||
+ priv->line_control &= ~CONTROL_RTS;
|
||||
+ if (arg & TIOCM_DTR)
|
||||
+ priv->line_control &= ~CONTROL_DTR;
|
||||
+ break;
|
||||
+
|
||||
+ case TIOCMSET:
|
||||
+ /* turn off RTS and DTR and then only turn
|
||||
+ on what was asked to */
|
||||
+ priv->line_control &= ~(CONTROL_RTS | CONTROL_DTR);
|
||||
+ priv->line_control |= ((arg & TIOCM_RTS) ? CONTROL_RTS : 0);
|
||||
+ priv->line_control |= ((arg & TIOCM_DTR) ? CONTROL_DTR : 0);
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+ return set_control_lines (port->serial->dev, priv->line_control);
|
||||
+}
|
||||
+
|
||||
+
|
||||
+
|
||||
static int pl2303_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
|
||||
{
|
||||
dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
|
||||
|
||||
switch (cmd) {
|
||||
+ case TIOCMGET:
|
||||
+ dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number);
|
||||
+ return pl2303_tiocmget(port,(unsigned int *)arg);
|
||||
+ case TIOCMBIS:
|
||||
+ case TIOCMBIC:
|
||||
+ case TIOCMSET:
|
||||
+ dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, port->number);
|
||||
+ return pl2303_tiocmset(port,cmd,(unsigned int*)arg);
|
||||
case TIOCMIWAIT:
|
||||
dbg("%s (%d) TIOCMIWAIT", __FUNCTION__, port->number);
|
||||
return wait_modem_info(port, arg);
|
||||
@@ -705,6 +808,8 @@
|
||||
|
||||
dbg("%s (%d)", __FUNCTION__, port->number);
|
||||
|
||||
+ dbg("%s - urb status %d...", __FUNCTION__, urb->status);
|
||||
+
|
||||
switch (urb->status) {
|
||||
case 0:
|
||||
/* success */
|
||||
Loading…
Reference in a new issue