hisax: hfc_usb: update to current CVS version

- killed paranoid NULL Pointer check
- human readable LED states
- support for "Eicon DIVA USB 4.0" (0x071d/0x1005)
Signed-off-by: Martin Bachem <info@colognechip.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/isdn/hisax/hfc_usb.c

 /*
  * hfc_usb.c
  *
- * $Id: hfc_usb.c,v 2.3.2.20 2007/08/20 14:07:54 mbachem Exp $
+ * $Id: hfc_usb.c,v 2.3.2.24 2007/10/14 08:40:29 mbachem Exp $
  *
  * modular HiSax ISDN driver for Colognechip HFC-S USB chip
  *
@@ -45,7 +45,7 @@
 #include "hfc_usb.h"
 
 static const char *hfcusb_revision =
-    "$Revision: 2.3.2.20 $ $Date: 2007/08/20 14:07:54 $ ";
+    "$Revision: 2.3.2.24 $ $Date: 2007/10/14 08:40:29 $ ";
 
 /* Hisax debug support
 *  debug flags defined in hfc_usb.h as HFCUSB_DBG_[*]
@@ -126,6 +126,12 @@ static struct usb_device_id hfcusb_idtab[] = {
 			  {LED_SCHEME1, {0x80, -64, -32, -16},
 			   "Twister ISDN TA"}),
 	},
+	{
+	 USB_DEVICE(0x071d, 0x1005),
+	 .driver_info = (unsigned long) &((hfcsusb_vdata)
+			  {LED_SCHEME1, {0x02, 0, 0x01, 0x04},
+			   "Eicon DIVA USB 4.0"}),
+	},
 	{ }
 };
 
@@ -187,7 +193,7 @@ typedef struct hfcusb_data {
 	struct usb_ctrlrequest ctrl_write;	/* buffer for control write request */
 	struct usb_ctrlrequest ctrl_read;	/* same for read request */
 
-	__u8 old_led_state, led_state, led_new_data, led_b_active;
+	__u8 old_led_state, led_state;
 
 	volatile __u8 threshold_mask;	/* threshold actually reported */
 	volatile __u8 bch_enables;	/* or mask for sctrl_r and sctrl register values */
@@ -263,7 +269,7 @@ ctrl_complete(struct urb *urb)
 
 		ctrl_start_transfer(hfc);	/* start next transfer */
 	}
-}				/* ctrl_complete */
+}
 
 /* write led data to auxport & invert if necessary */
 static void
@@ -276,18 +282,18 @@ write_led(hfcusb_data * hfc, __u8 led_state)
 }
 
 static void
-set_led_bit(hfcusb_data * hfc, signed short led_bits, int unset)
+set_led_bit(hfcusb_data * hfc, signed short led_bits, int on)
 {
-	if (unset) {
+	if (on) {
 		if (led_bits < 0)
-			hfc->led_state |= abs(led_bits);
+			hfc->led_state &= ~abs(led_bits);
 		else
-			hfc->led_state &= ~led_bits;
+			hfc->led_state |= led_bits;
 	} else {
 		if (led_bits < 0)
-			hfc->led_state &= ~abs(led_bits);
+			hfc->led_state |= abs(led_bits);
 		else
-			hfc->led_state |= led_bits;
+			hfc->led_state &= ~led_bits;
 	}
 }
 
@@ -304,34 +310,34 @@ handle_led(hfcusb_data * hfc, int event)
 
 	switch (event) {
 		case LED_POWER_ON:
-			set_led_bit(hfc, driver_info->led_bits[0], 0);
-			set_led_bit(hfc, driver_info->led_bits[1], 1);
-			set_led_bit(hfc, driver_info->led_bits[2], 1);
-			set_led_bit(hfc, driver_info->led_bits[3], 1);
+			set_led_bit(hfc, driver_info->led_bits[0], 1);
+			set_led_bit(hfc, driver_info->led_bits[1], 0);
+			set_led_bit(hfc, driver_info->led_bits[2], 0);
+			set_led_bit(hfc, driver_info->led_bits[3], 0);
 			break;
 		case LED_POWER_OFF:
-			set_led_bit(hfc, driver_info->led_bits[0], 1);
-			set_led_bit(hfc, driver_info->led_bits[1], 1);
-			set_led_bit(hfc, driver_info->led_bits[2], 1);
-			set_led_bit(hfc, driver_info->led_bits[3], 1);
+			set_led_bit(hfc, driver_info->led_bits[0], 0);
+			set_led_bit(hfc, driver_info->led_bits[1], 0);
+			set_led_bit(hfc, driver_info->led_bits[2], 0);
+			set_led_bit(hfc, driver_info->led_bits[3], 0);
 			break;
 		case LED_S0_ON:
-			set_led_bit(hfc, driver_info->led_bits[1], 0);
+			set_led_bit(hfc, driver_info->led_bits[1], 1);
 			break;
 		case LED_S0_OFF:
-			set_led_bit(hfc, driver_info->led_bits[1], 1);
+			set_led_bit(hfc, driver_info->led_bits[1], 0);
 			break;
 		case LED_B1_ON:
-			set_led_bit(hfc, driver_info->led_bits[2], 0);
+			set_led_bit(hfc, driver_info->led_bits[2], 1);
 			break;
 		case LED_B1_OFF:
-			set_led_bit(hfc, driver_info->led_bits[2], 1);
+			set_led_bit(hfc, driver_info->led_bits[2], 0);
 			break;
 		case LED_B2_ON:
-			set_led_bit(hfc, driver_info->led_bits[3], 0);
+			set_led_bit(hfc, driver_info->led_bits[3], 1);
 			break;
 		case LED_B2_OFF:
-			set_led_bit(hfc, driver_info->led_bits[3], 1);
+			set_led_bit(hfc, driver_info->led_bits[3], 0);
 			break;
 	}
 	write_led(hfc, hfc->led_state);
@@ -1159,7 +1165,6 @@ hfc_usb_init(hfcusb_data * hfc)
 	hfc->l1_activated = 0;
 	hfc->disc_flag = 0;
 	hfc->led_state = 0;
-	hfc->led_new_data = 0;
 	hfc->old_led_state = 0;
 
 	/* init the t3 timer */
@@ -1514,20 +1519,18 @@ hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
 /* callback for unplugged USB device */
 static void
-hfc_usb_disconnect(struct usb_interface
-		   *intf)
+hfc_usb_disconnect(struct usb_interface *intf)
 {
 	hfcusb_data *context = usb_get_intfdata(intf);
 	int i;
 
 	handle_led(context, LED_POWER_OFF);
-	schedule_timeout((10 * HZ) / 1000);
+	schedule_timeout(HZ / 100);
 
 	printk(KERN_INFO "HFC-S USB: device disconnect\n");
 	context->disc_flag = 1;
 	usb_set_intfdata(intf, NULL);
-	if (!context)
-		return;
+
 	if (timer_pending(&context->t3_timer))
 		del_timer(&context->t3_timer);
 	if (timer_pending(&context->t4_timer))