summaryrefslogtreecommitdiff
path: root/target/linux/linux-2.4/patches/202-pl2303_backport.patch
blob: 8577499b0dc63fe44c620554eee6dc712838f0c0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
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
+