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Diffstat (limited to 'openwrt/package/linux/kernel-patches/402-pl2303-backport-2-4-29')
-rw-r--r--openwrt/package/linux/kernel-patches/402-pl2303-backport-2-4-29738
1 files changed, 738 insertions, 0 deletions
diff --git a/openwrt/package/linux/kernel-patches/402-pl2303-backport-2-4-29 b/openwrt/package/linux/kernel-patches/402-pl2303-backport-2-4-29
new file mode 100644
index 0000000000..8577499b0d
--- /dev/null
+++ b/openwrt/package/linux/kernel-patches/402-pl2303-backport-2-4-29
@@ -0,0 +1,738 @@
+diff -rNu linux-2.4.29.old/drivers/usb/serial/pl2303.c linux-2.4.29/drivers/usb/serial/pl2303.c
+--- linux-2.4.29.old/drivers/usb/serial/pl2303.c 2005-03-22 14:48:04.000000000 +0100
++++ linux-2.4.29/drivers/usb/serial/pl2303.c 2005-03-22 15:33:05.735943352 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * Prolific PL2303 USB to serial adaptor driver
+ *
+- * Copyright (C) 2001-2003 Greg Kroah-Hartman (greg@kroah.com)
++ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2003 IBM Corp.
+ *
+ * Original driver for 2.2.x by anonymous
+@@ -12,8 +12,16 @@
+ * (at your option) any later version.
+ *
+ * See Documentation/usb/usb-serial.txt for more information on using this driver
+- * 2003_Apr_24 gkh
+- * Added line error reporting support. Hopefully it is correct...
++ *
++ *
++ * 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)
++ * Gregor Schaffrath <gschaff@ran-dom.org>
++ *
++ * 2002_Mar_26 gkh
++ * allowed driver to work properly if there is no tty assigned to a port
++ * (this happens for serial console devices.)
+ *
+ * 2001_Oct_06 gkh
+ * Added RTS and DTR line control. Thanks to joe@bndlg.de for parts of it.
+@@ -33,6 +41,9 @@
+ *
+ */
+
++static int debug;
++
++
+ #include <linux/config.h>
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+@@ -46,43 +57,44 @@
+ #include <linux/spinlock.h>
+ #include <asm/uaccess.h>
+ #include <linux/usb.h>
+-
+-#ifdef CONFIG_USB_SERIAL_DEBUG
+- static int debug = 1;
+-#else
+- static int debug;
+-#endif
+-
+ #include "usb-serial.h"
+ #include "pl2303.h"
+
+ /*
+ * Version Information
+ */
+-#define DRIVER_VERSION "v0.10"
++#define DRIVER_VERSION "v0.11"
+ #define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver"
+
+-
+-
+ static struct usb_device_id id_table [] = {
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) },
+ { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) },
+ { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
+ { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) },
+- { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
+ { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
+ { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) },
+ { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) },
+- { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
+- { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
+- { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) },
+- { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) },
+- { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) },
++ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
++ { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
++ { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) },
++ { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) },
++ { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) },
++ { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) },
++ { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) },
+ { } /* Terminating entry */
+ };
+
+ MODULE_DEVICE_TABLE (usb, id_table);
+
++/*
++static struct usb_driver pl2303_driver = {
++ .owner = THIS_MODULE,
++ .name = "pl2303",
++ .probe = usb_serial_probe,
++ .disconnect = usb_serial_disconnect,
++ .id_table = id_table,
++};
++*/
+
+ #define SET_LINE_REQUEST_TYPE 0x21
+ #define SET_LINE_REQUEST 0x20
+@@ -130,6 +142,9 @@
+ 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_startup (struct usb_serial *serial);
+ static void pl2303_shutdown (struct usb_serial *serial);
+
+@@ -149,27 +164,48 @@
+ .ioctl = pl2303_ioctl,
+ .break_ctl = pl2303_break_ctl,
+ .set_termios = pl2303_set_termios,
++ //.tiocmget = pl2303_tiocmget,
++ //.tiocmset = pl2303_tiocmset,
+ .read_bulk_callback = pl2303_read_bulk_callback,
+ .read_int_callback = pl2303_read_int_callback,
+ .write_bulk_callback = pl2303_write_bulk_callback,
++ //.attach = pl2303_startup,
+ .startup = pl2303_startup,
+ .shutdown = pl2303_shutdown,
+ };
+
++enum pl2303_type {
++ type_0, /* don't know the difference between type 0 and */
++ type_1, /* type 1, until someone from prolific tells us... */
++ HX, /* HX version of the pl2303 chip */
++};
++
+ struct pl2303_private {
+ spinlock_t lock;
+ wait_queue_head_t delta_msr_wait;
+ u8 line_control;
+ u8 line_status;
+ u8 termios_initialized;
++ enum pl2303_type type;
+ };
+
+
+ static int pl2303_startup (struct usb_serial *serial)
+ {
+ struct pl2303_private *priv;
++ enum pl2303_type type = type_0;
+ int i;
+
++ if (serial->dev->descriptor.bDeviceClass == 0x02)
++ type = type_0;
++ else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
++ type = HX;
++ else if (serial->dev->descriptor.bDeviceClass == 0x00)
++ type = type_1;
++ else if (serial->dev->descriptor.bDeviceClass == 0xFF)
++ type = type_1;
++ dbg("device type: %d", type);
++
+ for (i = 0; i < serial->num_ports; ++i) {
+ priv = kmalloc (sizeof (struct pl2303_private), GFP_KERNEL);
+ if (!priv)
+@@ -177,7 +213,8 @@
+ memset (priv, 0x00, sizeof (struct pl2303_private));
+ spin_lock_init(&priv->lock);
+ init_waitqueue_head(&priv->delta_msr_wait);
+- usb_set_serial_port_data(&serial->port[i], priv);
++ priv->type = type;
++ serial->port[i].private = priv;
+ }
+ return 0;
+ }
+@@ -215,13 +252,13 @@
+ memcpy (port->write_urb->transfer_buffer, buf, count);
+ }
+
+- usb_serial_debug_data (__FILE__, __FUNCTION__, count, port->write_urb->transfer_buffer);
++ usb_serial_debug_data(__FILE__, __FUNCTION__, count, port->write_urb->transfer_buffer);
+
+ port->write_urb->transfer_buffer_length = count;
+ port->write_urb->dev = port->serial->dev;
+ result = usb_submit_urb (port->write_urb);
+ if (result)
+- err("%s - failed submitting write urb, error %d", __FUNCTION__, result);
++ err("%s - failed submitting write urb, error %d\n", __FUNCTION__, result);
+ else
+ result = count;
+
+@@ -233,7 +270,7 @@
+ static void pl2303_set_termios (struct usb_serial_port *port, struct termios *old_termios)
+ {
+ struct usb_serial *serial = port->serial;
+- struct pl2303_private *priv = usb_get_serial_port_data(port);
++ struct pl2303_private *priv = port->private;
+ unsigned long flags;
+ unsigned int cflag;
+ unsigned char *buf;
+@@ -241,8 +278,7 @@
+ int i;
+ u8 control;
+
+- dbg("%s - port %d, initialized = %d", __FUNCTION__, port->number,
+- priv->termios_initialized);
++ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if ((!port->tty) || (!port->tty->termios)) {
+ dbg("%s - no tty structures", __FUNCTION__);
+@@ -269,7 +305,7 @@
+
+ buf = kmalloc (7, GFP_KERNEL);
+ if (!buf) {
+- err("%s - out of memory.", __FUNCTION__);
++ err("%s - out of memory.\n", __FUNCTION__);
+ return;
+ }
+ memset (buf, 0x00, 0x07);
+@@ -311,7 +347,7 @@
+ case B230400: baud = 230400; break;
+ case B460800: baud = 460800; break;
+ default:
+- err ("pl2303 driver does not support the baudrate requested (fix it)");
++ err("pl2303 driver does not support the baudrate requested (fix it)\n");
+ break;
+ }
+ dbg("%s - baud = %d", __FUNCTION__, baud);
+@@ -380,26 +416,30 @@
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
+
+ if (cflag & CRTSCTS) {
+- i = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0),
+- VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE,
+- 0x0, 0x41, NULL, 0, 100);
+- dbg ("0x40:0x1:0x0:0x41 %d", i);
++ __u16 index;
++ if (priv->type == HX)
++ index = 0x61;
++ else
++ index = 0x41;
++ i = usb_control_msg(serial->dev,
++ usb_sndctrlpipe(serial->dev, 0),
++ VENDOR_WRITE_REQUEST,
++ VENDOR_WRITE_REQUEST_TYPE,
++ 0x0, index, NULL, 0, 100);
++ dbg ("0x40:0x1:0x0:0x%x %d", index, i);
+ }
+
+ kfree (buf);
+-}
+-
++}
+
+ static int pl2303_open (struct usb_serial_port *port, struct file *filp)
+ {
+ struct termios tmp_termios;
+ struct usb_serial *serial = port->serial;
++ struct pl2303_private *priv = port->private;
+ unsigned char *buf;
+ int result;
+
+- if (port_paranoia_check (port, __FUNCTION__))
+- return -ENODEV;
+-
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ usb_clear_halt(serial->dev, port->write_urb->pipe);
+@@ -427,6 +467,18 @@
+ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 0x0404, 1);
+ FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8484, 0);
+ FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8383, 0);
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 0, 1);
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 1, 0);
++
++ if (priv->type == HX) {
++ /* HX chip */
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 2, 0x44);
++ /* reset upstream data pipes */
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 8, 0);
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 9, 0);
++ } else {
++ SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 2, 0x24);
++ }
+
+ kfree(buf);
+
+@@ -441,7 +493,7 @@
+ port->read_urb->dev = serial->dev;
+ result = usb_submit_urb (port->read_urb);
+ if (result) {
+- err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
++ err("%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
+ pl2303_close (port, NULL);
+ return -EPROTO;
+ }
+@@ -450,7 +502,7 @@
+ port->interrupt_in_urb->dev = serial->dev;
+ result = usb_submit_urb (port->interrupt_in_urb);
+ if (result) {
+- err("%s - failed submitting interrupt urb, error %d", __FUNCTION__, result);
++ err("%s - failed submitting interrupt urb, error %d\n", __FUNCTION__, result);
+ pl2303_close (port, NULL);
+ return -EPROTO;
+ }
+@@ -460,125 +512,103 @@
+
+ static void pl2303_close (struct usb_serial_port *port, struct file *filp)
+ {
+- struct usb_serial *serial;
+ struct pl2303_private *priv;
+ unsigned long flags;
+ unsigned int c_cflag;
+ int result;
+
+- if (port_paranoia_check (port, __FUNCTION__))
+- return;
+- serial = get_usb_serial (port, __FUNCTION__);
+- if (!serial)
+- return;
+-
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+- if (serial->dev) {
+- if (port->tty) {
+- c_cflag = port->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);
+- }
+- }
++ /* shutdown our urbs */
++ dbg("%s - shutting down urbs", __FUNCTION__);
++ result = usb_unlink_urb (port->write_urb);
++ if (result)
++ dbg("%s - usb_unlink_urb (write_urb)"
++ " failed with reason: %d", __FUNCTION__,
++ result);
+
+- /* shutdown our urbs */
+- dbg("%s - shutting down urbs", __FUNCTION__);
+- result = usb_unlink_urb (port->write_urb);
+- if (result)
+- dbg("%s - usb_unlink_urb (write_urb)"
+- " failed with reason: %d", __FUNCTION__,
+- result);
++ result = usb_unlink_urb (port->read_urb);
++ if (result)
++ dbg("%s - usb_unlink_urb (read_urb) "
++ "failed with reason: %d", __FUNCTION__,
++ result);
+
+- result = usb_unlink_urb (port->read_urb);
+- if (result)
+- dbg("%s - usb_unlink_urb (read_urb) "
+- "failed with reason: %d", __FUNCTION__,
+- result);
++ result = usb_unlink_urb (port->interrupt_in_urb);
++ if (result)
++ dbg("%s - usb_unlink_urb (interrupt_in_urb)"
++ " failed with reason: %d", __FUNCTION__,
++ result);
+
+- result = usb_unlink_urb (port->interrupt_in_urb);
+- if (result)
+- dbg("%s - usb_unlink_urb (interrupt_in_urb)"
+- " failed with reason: %d", __FUNCTION__,
+- result);
++ if (port->tty) {
++ c_cflag = port->tty->termios->c_cflag;
++ if (c_cflag & HUPCL) {
++ /* drop DTR and RTS */
++ priv = port->private;
++ spin_lock_irqsave(&priv->lock, flags);
++ priv->line_control = 0;
++ spin_unlock_irqrestore (&priv->lock, flags);
++ set_control_lines (port->serial->dev, 0);
++ }
+ }
++
+ }
+
++/* taken from 2.4.20 driver */
+ static int set_modem_info (struct usb_serial_port *port, unsigned int cmd, unsigned int *value)
+ {
+- struct pl2303_private *priv = usb_get_serial_port_data(port);
+- unsigned long flags;
+- unsigned int arg;
+- u8 control;
+-
+- if (copy_from_user(&arg, value, sizeof(int)))
+- return -EFAULT;
+-
+- spin_lock_irqsave (&priv->lock, flags);
+- 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;
++ struct pl2303_private *priv = port->private;
++ unsigned int arg;
+
+- 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;
+- }
+- control = priv->line_control;
+- spin_unlock_irqrestore (&priv->lock, flags);
+-
+- return set_control_lines (port->serial->dev, control);
++ 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 get_modem_info (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;
+-
+- 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;
++ struct pl2303_private *priv = port->private;
++ unsigned int mcr = priv->line_control;
++ unsigned int result;
++
++ result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0)
++ | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0);
++
++ dbg("%s - result = %x", __FUNCTION__, result);
++
++ if (copy_to_user(value, &result, sizeof(int)))
++ return -EFAULT;
++ return 0;
+ }
++/* end of 2.4.20 kernel part - grsch */
+
+ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
+ {
+- struct pl2303_private *priv = usb_get_serial_port_data(port);
++ struct pl2303_private *priv = port->private;
+ unsigned long flags;
+ unsigned int prevstatus;
+ unsigned int status;
+@@ -617,21 +647,10 @@
+ dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
+
+ switch (cmd) {
+-
+- case TIOCMGET:
+- dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number);
+- return get_modem_info (port, (unsigned int *)arg);
+-
+- case TIOCMBIS:
+- case TIOCMBIC:
+- case TIOCMSET:
+- dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, port->number);
+- return set_modem_info(port, cmd, (unsigned int *) arg);
+-
+ case TIOCMIWAIT:
+ dbg("%s (%d) TIOCMIWAIT", __FUNCTION__, port->number);
+ return wait_modem_info(port, arg);
+-
++
+ default:
+ dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
+ break;
+@@ -652,7 +671,7 @@
+ state = BREAK_OFF;
+ else
+ state = BREAK_ON;
+- dbg("%s - turning break %s", __FUNCTION__, state==BREAK_OFF ? "off" : "on");
++ dbg("%s - turning break %s", state==BREAK_OFF ? "off" : "on", __FUNCTION__);
+
+ result = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0),
+ BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
+@@ -669,8 +688,8 @@
+ dbg("%s", __FUNCTION__);
+
+ for (i = 0; i < serial->num_ports; ++i) {
+- kfree (usb_get_serial_port_data(&serial->port[i]));
+- usb_set_serial_port_data(&serial->port[i], NULL);
++ kfree (serial->port[i].private);
++ serial->port[i].private = NULL;
+ }
+ }
+
+@@ -678,16 +697,14 @@
+ static void pl2303_read_int_callback (struct urb *urb)
+ {
+ struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+- struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+- struct pl2303_private *priv = usb_get_serial_port_data(port);
++ struct pl2303_private *priv = port->private;
+ unsigned char *data = urb->transfer_buffer;
+ unsigned long flags;
++ int status;
+ u8 uart_state;
+
+ dbg("%s (%d)", __FUNCTION__, port->number);
+
+- /* ints auto restart... */
+-
+ switch (urb->status) {
+ case 0:
+ /* success */
+@@ -700,17 +717,14 @@
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+- return;
++ goto exit;
+ }
+
+- if (!serial) {
+- return;
+- }
+
+- usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, urb->transfer_buffer);
++ usb_serial_debug_data(__FILE__, __FUNCTION__, urb->actual_length, urb->transfer_buffer);
+
+ if (urb->actual_length < UART_STATE)
+- return;
++ goto exit;
+
+ /* Save off the uart status for others to look at */
+ uart_state = data[UART_STATE];
+@@ -718,17 +732,19 @@
+ uart_state |= (priv->line_status & UART_STATE_TRANSIENT_MASK);
+ priv->line_status = uart_state;
+ spin_unlock_irqrestore(&priv->lock, flags);
+- wake_up_interruptible (&priv->delta_msr_wait);
+-
+- return;
++
++exit:
++ status = usb_submit_urb (urb);
++ if (status)
++ err("%s - usb_submit_urb failed with result %d\n",
++ __FUNCTION__, status);
+ }
+
+
+ static void pl2303_read_bulk_callback (struct urb *urb)
+ {
+ struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+- struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
+- struct pl2303_private *priv = usb_get_serial_port_data(port);
++ struct pl2303_private *priv = port->private;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ unsigned long flags;
+@@ -737,16 +753,8 @@
+ u8 status;
+ char tty_flag;
+
+- if (port_paranoia_check (port, __FUNCTION__))
+- return;
+-
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+- if (!serial) {
+- dbg("%s - bad serial pointer, exiting", __FUNCTION__);
+- return;
+- }
+-
+ if (urb->status) {
+ dbg("%s - urb->status = %d", __FUNCTION__, urb->status);
+ if (!port->open_count) {
+@@ -757,17 +765,17 @@
+ /* PL2303 mysteriously fails with -EPROTO reschedule the read */
+ dbg("%s - caught -EPROTO, resubmitting the urb", __FUNCTION__);
+ urb->status = 0;
+- urb->dev = serial->dev;
++ urb->dev = port->serial->dev;
+ result = usb_submit_urb(urb);
+ if (result)
+- err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
++ err("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+ return;
+ }
+ dbg("%s - unable to handle the error, exiting.", __FUNCTION__);
+ return;
+ }
+
+- usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
++ usb_serial_debug_data(__FILE__, __FUNCTION__, urb->actual_length, data);
+
+ /* get tty_flag from status */
+ tty_flag = TTY_NORMAL;
+@@ -776,7 +784,7 @@
+ status = priv->line_status;
+ priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
+ spin_unlock_irqrestore(&priv->lock, flags);
+- wake_up_interruptible (&priv->delta_msr_wait); //AF from 2.6
++ wake_up_interruptible (&priv->delta_msr_wait);
+
+ /* break takes precedence over parity, */
+ /* which takes precedence over framing errors */
+@@ -805,10 +813,10 @@
+
+ /* Schedule the next read _if_ we are still open */
+ if (port->open_count) {
+- urb->dev = serial->dev;
++ urb->dev = port->serial->dev;
+ result = usb_submit_urb(urb);
+ if (result)
+- err("%s - failed resubmitting read urb, error %d", __FUNCTION__, result);
++ err("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+ }
+
+ return;
+@@ -821,44 +829,32 @@
+ struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+ int result;
+
+- if (port_paranoia_check (port, __FUNCTION__))
+- return;
+-
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (urb->status) {
+ /* error in the urb, so we have to resubmit it */
+- if (serial_paranoia_check (port->serial, __FUNCTION__)) {
+- return;
+- }
+ dbg("%s - Overflow in write", __FUNCTION__);
+ dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status);
+ port->write_urb->transfer_buffer_length = 1;
+ port->write_urb->dev = port->serial->dev;
+ result = usb_submit_urb (port->write_urb);
+ if (result)
+- err("%s - failed resubmitting write urb, error %d", __FUNCTION__, result);
++ err("%s - failed resubmitting write urb, error %d\n", __FUNCTION__, result);
+
+ return;
+ }
+
+- queue_task(&port->tqueue, &tq_immediate);
+- mark_bh(IMMEDIATE_BH);
+
+- return;
++ queue_task(&port->tqueue, &tq_immediate);
++ mark_bh(IMMEDIATE_BH);
+ }
+
+
+ static int __init pl2303_init (void)
+ {
+- int retval;
+- retval = usb_serial_register(&pl2303_device);
+- if (retval)
+- goto failed_usb_serial_register;
++ usb_serial_register(&pl2303_device);
+ info(DRIVER_DESC " " DRIVER_VERSION);
+ return 0;
+-failed_usb_serial_register:
+- return retval;
+ }
+
+
+@@ -877,3 +873,4 @@
+ MODULE_PARM(debug, "i");
+ MODULE_PARM_DESC(debug, "Debug enabled or not");
+
++//this is an error
+diff -rNu linux-2.4.29.old/drivers/usb/serial/pl2303.h linux-2.4.29/drivers/usb/serial/pl2303.h
+--- linux-2.4.29.old/drivers/usb/serial/pl2303.h 2005-03-22 14:48:04.000000000 +0100
++++ linux-2.4.29/drivers/usb/serial/pl2303.h 2005-03-22 15:33:05.758939856 +0100
+@@ -41,3 +41,12 @@
+
+ #define SITECOM_VENDOR_ID 0x6189
+ #define SITECOM_PRODUCT_ID 0x2068
++
++/* Alcatel OT535/735 USB cable */
++#define ALCATEL_VENDOR_ID 0x11f7
++#define ALCATEL_PRODUCT_ID 0x02df
++
++/* Samsung I330 phone cradle */
++#define SAMSUNG_VENDOR_ID 0x04e8
++#define SAMSUNG_PRODUCT_ID 0x8001
++
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-26 16:48:21 +0000