USB: Drop dead code from usb_kbd.c

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Remy Bohmer <linux@bohmer.net>
Cc: Wolfgang Denk <wd@denx.de>

common/usb_kbd.c

@@ -505,382 +505,3 @@ int usb_kbd_deregister(void)
 	return 1;
 #endif
 }
-
-#if 0
-struct usb_hid_descriptor {
-	unsigned char  bLength;
-	unsigned char  bDescriptorType; /* 0x21 for HID */
-	unsigned short bcdHID; /* release number */
-	unsigned char  bCountryCode;
-	unsigned char  bNumDescriptors;
-	unsigned char  bReportDescriptorType;
-	unsigned short wDescriptorLength;
-} __packed;
-
-/*
- * We parse each description item into this structure. Short items data
- * values are expanded to 32-bit signed int, long items contain a pointer
- * into the data area.
- */
-
-struct hid_item {
-	unsigned char format;
-	unsigned char size;
-	unsigned char type;
-	unsigned char tag;
-	union {
-	    unsigned char   u8;
-	    char            s8;
-	    unsigned short  u16;
-	    short           s16;
-	    unsigned long   u32;
-	    long            s32;
-	    unsigned char  *longdata;
-	} data;
-};
-
-/*
- * HID report item format
- */
-
-#define HID_ITEM_FORMAT_SHORT	0
-#define HID_ITEM_FORMAT_LONG	1
-
-/*
- * Special tag indicating long items
- */
-
-#define HID_ITEM_TAG_LONG	15
-
-
-static struct usb_hid_descriptor usb_kbd_hid_desc;
-
-void usb_kbd_display_hid(struct usb_hid_descriptor *hid)
-{
-	printf("USB_HID_DESC:\n");
-	printf("  bLenght               0x%x\n", hid->bLength);
-	printf("  bcdHID                0x%x\n", hid->bcdHID);
-	printf("  bCountryCode          %d\n", hid->bCountryCode);
-	printf("  bNumDescriptors       0x%x\n", hid->bNumDescriptors);
-	printf("  bReportDescriptorType 0x%x\n", hid->bReportDescriptorType);
-	printf("  wDescriptorLength     0x%x\n", hid->wDescriptorLength);
-}
-
-
-/*
- * Fetch a report description item from the data stream. We support long
- * items, though they are not used yet.
- */
-
-static int fetch_item(unsigned char *start, unsigned char *end,
-			struct hid_item *item)
-{
-	if ((end - start) > 0) {
-		unsigned char b = *start++;
-		item->type = (b >> 2) & 3;
-		item->tag  = (b >> 4) & 15;
-		if (item->tag == HID_ITEM_TAG_LONG) {
-			item->format = HID_ITEM_FORMAT_LONG;
-			if ((end - start) >= 2) {
-				item->size = *start++;
-				item->tag  = *start++;
-				if ((end - start) >= item->size) {
-					item->data.longdata = start;
-					start += item->size;
-					return item->size;
-				}
-			}
-		} else {
-			item->format = HID_ITEM_FORMAT_SHORT;
-			item->size = b & 3;
-			switch (item->size) {
-			case 0:
-				return item->size;
-			case 1:
-				if ((end - start) >= 1) {
-					item->data.u8 = *start++;
-					return item->size;
-				}
-				break;
-			case 2:
-				if ((end - start) >= 2) {
-					item->data.u16 = le16_to_cpu(
-						(unsigned short *)start);
-					start += 2;
-					return item->size;
-				}
-			case 3:
-				item->size++;
-				if ((end - start) >= 4) {
-					item->data.u32 = le32_to_cpu(
-						(unsigned long *)start);
-					start += 4;
-					return item->size;
-				}
-			}
-		}
-	}
-	return -1;
-}
-
-/*
- * HID report descriptor item type (prefix bit 2, 3)
- */
-
-#define HID_ITEM_TYPE_MAIN		0
-#define HID_ITEM_TYPE_GLOBAL		1
-#define HID_ITEM_TYPE_LOCAL		2
-#define HID_ITEM_TYPE_RESERVED		3
-/*
- * HID report descriptor main item tags
- */
-
-#define HID_MAIN_ITEM_TAG_INPUT			8
-#define HID_MAIN_ITEM_TAG_OUTPUT		9
-#define HID_MAIN_ITEM_TAG_FEATURE		11
-#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION	10
-#define HID_MAIN_ITEM_TAG_END_COLLECTION	12
-/*
- * HID report descriptor main item contents
- */
-
-#define HID_MAIN_ITEM_CONSTANT		0x001
-#define HID_MAIN_ITEM_VARIABLE		0x002
-#define HID_MAIN_ITEM_RELATIVE		0x004
-#define HID_MAIN_ITEM_WRAP		0x008
-#define HID_MAIN_ITEM_NONLINEAR		0x010
-#define HID_MAIN_ITEM_NO_PREFERRED	0x020
-#define HID_MAIN_ITEM_NULL_STATE	0x040
-#define HID_MAIN_ITEM_VOLATILE		0x080
-#define HID_MAIN_ITEM_BUFFERED_BYTE	0x100
-
-/*
- * HID report descriptor collection item types
- */
-
-#define HID_COLLECTION_PHYSICAL		0
-#define HID_COLLECTION_APPLICATION	1
-#define HID_COLLECTION_LOGICAL		2
-/*
- * HID report descriptor global item tags
- */
-
-#define HID_GLOBAL_ITEM_TAG_USAGE_PAGE		0
-#define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM	1
-#define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM	2
-#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM	3
-#define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM	4
-#define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT	5
-#define HID_GLOBAL_ITEM_TAG_UNIT		6
-#define HID_GLOBAL_ITEM_TAG_REPORT_SIZE		7
-#define HID_GLOBAL_ITEM_TAG_REPORT_ID		8
-#define HID_GLOBAL_ITEM_TAG_REPORT_COUNT	9
-#define HID_GLOBAL_ITEM_TAG_PUSH		10
-#define HID_GLOBAL_ITEM_TAG_POP			11
-
-/*
- * HID report descriptor local item tags
- */
-
-#define HID_LOCAL_ITEM_TAG_USAGE		0
-#define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM	1
-#define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM	2
-#define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX	3
-#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM	4
-#define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM	5
-#define HID_LOCAL_ITEM_TAG_STRING_INDEX		7
-#define HID_LOCAL_ITEM_TAG_STRING_MINIMUM	8
-#define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM	9
-#define HID_LOCAL_ITEM_TAG_DELIMITER		10
-
-
-static void usb_kbd_show_item(struct hid_item *item)
-{
-	switch (item->type) {
-	case HID_ITEM_TYPE_MAIN:
-		switch (item->tag) {
-		case HID_MAIN_ITEM_TAG_INPUT:
-			printf("Main Input");
-			break;
-		case HID_MAIN_ITEM_TAG_OUTPUT:
-			printf("Main Output");
-			break;
-		case HID_MAIN_ITEM_TAG_FEATURE:
-			printf("Main Feature");
-			break;
-		case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
-			printf("Main Begin Collection");
-			break;
-		case HID_MAIN_ITEM_TAG_END_COLLECTION:
-			printf("Main End Collection");
-			break;
-		default:
-			printf("Main reserved %d", item->tag);
-			break;
-		}
-		break;
-	case HID_ITEM_TYPE_GLOBAL:
-		switch (item->tag) {
-		case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
-			printf("- Global Usage Page");
-			break;
-		case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
-			printf("- Global Logical Minimum");
-			break;
-		case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
-			printf("- Global Logical Maximum");
-			break;
-		case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
-			printf("- Global physical Minimum");
-			break;
-		case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
-			printf("- Global physical Maximum");
-			break;
-		case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
-			printf("- Global Unit Exponent");
-			break;
-		case HID_GLOBAL_ITEM_TAG_UNIT:
-			printf("- Global Unit");
-			break;
-		case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
-			printf("- Global Report Size");
-			break;
-		case HID_GLOBAL_ITEM_TAG_REPORT_ID:
-			printf("- Global Report ID");
-			break;
-		case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
-			printf("- Global Report Count");
-			break;
-		case HID_GLOBAL_ITEM_TAG_PUSH:
-			printf("- Global Push");
-			break;
-		case HID_GLOBAL_ITEM_TAG_POP:
-			printf("- Global Pop");
-			break;
-		default:
-			printf("- Global reserved %d", item->tag);
-			break;
-		}
-		break;
-	case HID_ITEM_TYPE_LOCAL:
-		switch (item->tag) {
-		case HID_LOCAL_ITEM_TAG_USAGE:
-			printf("-- Local Usage");
-			break;
-		case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
-			printf("-- Local Usage Minimum");
-			break;
-		case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
-			printf("-- Local Usage Maximum");
-			break;
-		case HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX:
-			printf("-- Local Designator Index");
-			break;
-		case HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM:
-			printf("-- Local Designator Minimum");
-			break;
-		case HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM:
-			printf("-- Local Designator Maximum");
-			break;
-		case HID_LOCAL_ITEM_TAG_STRING_INDEX:
-			printf("-- Local String Index");
-			break;
-		case HID_LOCAL_ITEM_TAG_STRING_MINIMUM:
-			printf("-- Local String Minimum");
-			break;
-		case HID_LOCAL_ITEM_TAG_STRING_MAXIMUM:
-			printf("-- Local String Maximum");
-			break;
-		case HID_LOCAL_ITEM_TAG_DELIMITER:
-			printf("-- Local Delimiter");
-			break;
-		default:
-			printf("-- Local reserved %d", item->tag);
-			break;
-		}
-		break;
-	default:
-		printf("--- reserved %d", item->type);
-		break;
-	}
-	switch (item->size) {
-	case 1:
-		printf("  %d", item->data.u8);
-		break;
-	case 2:
-		printf("  %d", item->data.u16);
-		break;
-	case 4:
-		printf("  %ld", item->data.u32);
-		break;
-	}
-	printf("\n");
-}
-
-
-static int usb_kbd_get_hid_desc(struct usb_device *dev)
-{
-	unsigned char buffer[256];
-	struct usb_descriptor_header *head;
-	struct usb_config_descriptor *config;
-	int index, len, i;
-	unsigned char *start, *end;
-	struct hid_item item;
-
-	if (usb_get_configuration_no(dev, &buffer[0], 0) == -1)
-		return -1;
-	head = (struct usb_descriptor_header *)&buffer[0];
-	if (head->bDescriptorType != USB_DT_CONFIG) {
-		printf(" ERROR: NOT USB_CONFIG_DESC %x\n",
-				head->bDescriptorType);
-		return -1;
-	}
-	index = head->bLength;
-	config = (struct usb_config_descriptor *)&buffer[0];
-	len = le16_to_cpu(config->wTotalLength);
-	/*
-	 * Ok the first entry must be a configuration entry,
-	 * now process the others
-	 */
-	head = (struct usb_descriptor_header *)&buffer[index];
-	while (index+1 < len) {
-		if (head->bDescriptorType == USB_DT_HID) {
-			printf("HID desc found\n");
-			memcpy(&usb_kbd_hid_desc, &buffer[index],
-					buffer[index]);
-			le16_to_cpus(&usb_kbd_hid_desc.bcdHID);
-			le16_to_cpus(&usb_kbd_hid_desc.wDescriptorLength);
-			usb_kbd_display_hid(&usb_kbd_hid_desc);
-			len = 0;
-			break;
-		}
-		index += head->bLength;
-		head = (struct usb_descriptor_header *)&buffer[index];
-	}
-	if (len > 0)
-		return -1;
-	len = usb_kbd_hid_desc.wDescriptorLength;
-	index = usb_get_class_descriptor(dev, 0, USB_DT_REPORT, 0, &buffer[0],
-						len);
-	if (index < 0) {
-		printf("reading report descriptor failed\n");
-		return -1;
-	}
-	printf(" report descriptor (size %u, read %d)\n", len, index);
-	start = &buffer[0];
-	end = &buffer[len];
-	i = 0;
-	do {
-		index = fetch_item(start, end, &item);
-		i += index;
-		i++;
-		if (index >= 0)
-			usb_kbd_show_item(&item);
-
-		start += index;
-		start++;
-	} while (index >= 0);
-
-}
-
-#endif