tree 7cd16d8278a03bcfe5bb9825f620b049c2f07914
parent 6fdd8e8e33730a2abc886113bd0b6c4343f63cc9
author Flavio Leitner <[EMAIL PROTECTED]> Tue, 19 Apr 2005 07:39:31 -0700
committer Greg K-H <[EMAIL PROTECTED]> Tue, 19 Apr 2005 07:39:31 -0700
[PATCH] pl2303 - status line
I'm attaching a patch to fix status when using Siemens X65
mobile. This mobile use first byte instead of normal UART_STATE
byte.
From: Flavio Leitner <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
Index: gregkh-2.6/drivers/usb/serial/pl2303.c
===================================================================
usb/serial/pl2303.c | 43 +++++++++++++++++++++++++++++--------------
1 files changed, 29 insertions(+), 14 deletions(-)
Index: drivers/usb/serial/pl2303.c
===================================================================
--- 83b425282fb306a2b96520431867430233955385/drivers/usb/serial/pl2303.c
(mode:100644 sha1:a52115407ea13f15724cceb0e4a4ddf4727bf5ae)
+++ 7cd16d8278a03bcfe5bb9825f620b049c2f07914/drivers/usb/serial/pl2303.c
(mode:100644 sha1:dceda2e43c155c5b995b195e004f5367997993db)
@@ -817,15 +817,40 @@
}
}
+static void pl2303_update_line_status(struct usb_serial_port *port,
+ unsigned char *data,
+ unsigned int actual_length)
+{
+
+ struct pl2303_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ u8 status_idx = UART_STATE;
+ u8 length = UART_STATE;
+
+ if ((le16_to_cpu(port->serial->dev->descriptor.idVendor) ==
SIEMENS_VENDOR_ID) &&
+ (le16_to_cpu(port->serial->dev->descriptor.idProduct) ==
SIEMENS_PRODUCT_ID_X65)) {
+ length = 1;
+ status_idx = 0;
+ }
+
+ if (actual_length < length)
+ goto exit;
+
+ /* Save off the uart status for others to look at */
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->line_status = data[status_idx];
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+exit:
+ return;
+}
static void pl2303_read_int_callback (struct urb *urb, struct pt_regs *regs)
{
struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
- struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned char *data = urb->transfer_buffer;
- unsigned long flags;
+ unsigned int actual_length = urb->actual_length;
int status;
- u8 uart_state;
dbg("%s (%d)", __FUNCTION__, port->number);
@@ -844,19 +869,9 @@
goto exit;
}
-
usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
urb->actual_length, urb->transfer_buffer);
+ pl2303_update_line_status(port, data, actual_length);
- if (urb->actual_length < UART_STATE)
- goto exit;
-
- /* Save off the uart status for others to look at */
- uart_state = data[UART_STATE];
- spin_lock_irqsave(&priv->lock, flags);
- uart_state |= (priv->line_status & UART_STATE_TRANSIENT_MASK);
- priv->line_status = uart_state;
- spin_unlock_irqrestore(&priv->lock, flags);
-
exit:
status = usb_submit_urb (urb, GFP_ATOMIC);
if (status)
-
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