USB Consolidate descriptor definitions

The header files usb.h and usbdescriptors.h have the same nameed
structure definitions for

usb_config_descriptor
usb_interface_descriptor
usb_endpoint_descriptor
usb_device_descriptor
usb_string_descriptor

These are out right duplicates in usb.h

usb_device_descriptor
usb_string_descriptor

This one has extra unused elements

usb_endpoint_descriptor

	unsigned char	bRefresh
	unsigned char	bSynchAddress;

These in usb.h have extra elements at the end of the usb 2.0
specified descriptor and are used.

usb_config_descriptor
usb_interface_descriptor

The change is to consolidate the definition of the descriptors
to usbdescriptors.h.  The dublicates in usb.h are removed.
The extra element structure will have their name shorted by
removing the '_descriptor' suffix.

So

usb_config_descriptor -> usb_config
usb_interface_descriptor -> usb_interface

For these, the common descriptor elements are accessed now
by an element 'desc'.

As an example

-	if (iface->bInterfaceClass != USB_CLASS_HUB)
+	if (iface->desc.bInterfaceClass != USB_CLASS_HUB)

This has been compile tested on MAKEALL arm, ppc and mips.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>

common/cmd_usb.c

@@ -157,7 +157,7 @@ void usb_display_desc(struct usb_device *dev)
 {
 	if (dev->descriptor.bDescriptorType == USB_DT_DEVICE) {
 		printf("%d: %s,  USB Revision %x.%x\n", dev->devnum,
-		usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
+		usb_get_class_desc(dev->config.if_desc[0].desc.bInterfaceClass),
 				   (dev->descriptor.bcdUSB>>8) & 0xff,
 				   dev->descriptor.bcdUSB & 0xff);
 
@@ -174,7 +174,7 @@ void usb_display_desc(struct usb_device *dev)
 		} else {
 			printf(" - Class: (from Interface) %s\n",
 			       usb_get_class_desc(
-				dev->config.if_desc[0].bInterfaceClass));
+				dev->config.if_desc[0].desc.bInterfaceClass));
 		}
 		printf(" - PacketSize: %d  Configurations: %d\n",
 			dev->descriptor.bMaxPacketSize0,
@@ -187,14 +187,14 @@ void usb_display_desc(struct usb_device *dev)
 
 }
 
-void usb_display_conf_desc(struct usb_config_descriptor *config,
+void usb_display_conf_desc(struct usb_configuration_descriptor *config,
 			   struct usb_device *dev)
 {
 	printf("   Configuration: %d\n", config->bConfigurationValue);
 	printf("   - Interfaces: %d %s%s%dmA\n", config->bNumInterfaces,
 	       (config->bmAttributes & 0x40) ? "Self Powered " : "Bus Powered ",
 	       (config->bmAttributes & 0x20) ? "Remote Wakeup " : "",
-		config->MaxPower*2);
+		config->bMaxPower*2);
 	if (config->iConfiguration) {
 		printf("   - ");
 		usb_display_string(dev, config->iConfiguration);
@@ -246,16 +246,16 @@ void usb_display_ep_desc(struct usb_endpoint_descriptor *epdesc)
 /* main routine to diasplay the configs, interfaces and endpoints */
 void usb_display_config(struct usb_device *dev)
 {
-	struct usb_config_descriptor *config;
+	struct usb_config *config;
-	struct usb_interface_descriptor *ifdesc;
+	struct usb_interface *ifdesc;
 	struct usb_endpoint_descriptor *epdesc;
 	int i, ii;
 
 	config = &dev->config;
-	usb_display_conf_desc(config, dev);
+	usb_display_conf_desc(&config->desc, dev);
 	for (i = 0; i < config->no_of_if; i++) {
 		ifdesc = &config->if_desc[i];
-		usb_display_if_desc(ifdesc, dev);
+		usb_display_if_desc(&ifdesc->desc, dev);
 		for (ii = 0; ii < ifdesc->no_of_ep; ii++) {
 			epdesc = &ifdesc->ep_desc[ii];
 			usb_display_ep_desc(epdesc);
@@ -319,9 +319,9 @@ void usb_show_tree_graph(struct usb_device *dev, char *pre)
 	pre[index++] = has_child ? '|' : ' ';
 	pre[index] = 0;
 	printf(" %s (%s, %dmA)\n", usb_get_class_desc(
-					dev->config.if_desc[0].bInterfaceClass),
+					dev->config.if_desc[0].desc.bInterfaceClass),
 					portspeed(dev->speed),
-					dev->config.MaxPower * 2);
+					dev->config.desc.bMaxPower * 2);
 	if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
 		printf(" %s  %s %s %s\n", pre, dev->mf, dev->prod, dev->serial);
 	printf(" %s\n", pre);

common/usb.c

@@ -299,8 +299,8 @@ int usb_set_maxpacket(struct usb_device *dev)
 {
 	int i, ii;
 
-	for (i = 0; i < dev->config.bNumInterfaces; i++)
+	for (i = 0; i < dev->config.desc.bNumInterfaces; i++)
-		for (ii = 0; ii < dev->config.if_desc[i].bNumEndpoints; ii++)
+		for (ii = 0; ii < dev->config.if_desc[i].desc.bNumEndpoints; ii++)
 			usb_set_maxpacket_ep(dev,
 					  &dev->config.if_desc[i].ep_desc[ii]);
 
@@ -330,14 +330,14 @@ int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno)
 		return -1;
 	}
 	memcpy(&dev->config, buffer, buffer[0]);
-	le16_to_cpus(&(dev->config.wTotalLength));
+	le16_to_cpus(&(dev->config.desc.wTotalLength));
 	dev->config.no_of_if = 0;
 
-	index = dev->config.bLength;
+	index = dev->config.desc.bLength;
 	/* Ok the first entry must be a configuration entry,
 	 * now process the others */
 	head = (struct usb_descriptor_header *) &buffer[index];
-	while (index + 1 < dev->config.wTotalLength) {
+	while (index + 1 < dev->config.desc.wTotalLength) {
 		switch (head->bDescriptorType) {
 		case USB_DT_INTERFACE:
 			if (((struct usb_interface_descriptor *) \
@@ -350,7 +350,7 @@ int usb_parse_config(struct usb_device *dev, unsigned char *buffer, int cfgno)
 				dev->config.if_desc[ifno].no_of_ep = 0;
 				dev->config.if_desc[ifno].num_altsetting = 1;
 				curr_if_num =
-				     dev->config.if_desc[ifno].bInterfaceNumber;
+				     dev->config.if_desc[ifno].desc.bInterfaceNumber;
 			} else {
 				/* found alternate setting for the interface */
 				dev->config.if_desc[ifno].num_altsetting++;
@@ -440,10 +440,9 @@ int usb_get_configuration_no(struct usb_device *dev,
 {
 	int result;
 	unsigned int tmp;
-	struct usb_config_descriptor *config;
+	struct usb_configuration_descriptor *config;
 
-
+	config = (struct usb_configuration_descriptor *)&buffer[0];
-	config = (struct usb_config_descriptor *)&buffer[0];
 	result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno, buffer, 9);
 	if (result < 9) {
 		if (result < 0)
@@ -489,11 +488,11 @@ int usb_set_address(struct usb_device *dev)
  */
 int usb_set_interface(struct usb_device *dev, int interface, int alternate)
 {
-	struct usb_interface_descriptor *if_face = NULL;
+	struct usb_interface *if_face = NULL;
 	int ret, i;
 
-	for (i = 0; i < dev->config.bNumInterfaces; i++) {
+	for (i = 0; i < dev->config.desc.bNumInterfaces; i++) {
-		if (dev->config.if_desc[i].bInterfaceNumber == interface) {
+		if (dev->config.if_desc[i].desc.bInterfaceNumber == interface) {
 			if_face = &dev->config.if_desc[i];
 			break;
 		}
@@ -897,7 +896,7 @@ int usb_new_device(struct usb_device *dev)
 	usb_parse_config(dev, &tmpbuf[0], 0);
 	usb_set_maxpacket(dev);
 	/* we set the default configuration here */
-	if (usb_set_configuration(dev, dev->config.bConfigurationValue)) {
+	if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) {
 		printf("failed to set default configuration " \
 			"len %d, status %lX\n", dev->act_len, dev->status);
 		return -1;
@@ -1347,21 +1346,21 @@ int usb_hub_configure(struct usb_device *dev)
 
 int usb_hub_probe(struct usb_device *dev, int ifnum)
 {
-	struct usb_interface_descriptor *iface;
+	struct usb_interface *iface;
 	struct usb_endpoint_descriptor *ep;
 	int ret;
 
 	iface = &dev->config.if_desc[ifnum];
 	/* Is it a hub? */
-	if (iface->bInterfaceClass != USB_CLASS_HUB)
+	if (iface->desc.bInterfaceClass != USB_CLASS_HUB)
 		return 0;
 	/* Some hubs have a subclass of 1, which AFAICT according to the */
 	/*  specs is not defined, but it works */
-	if ((iface->bInterfaceSubClass != 0) &&
+	if ((iface->desc.bInterfaceSubClass != 0) &&
-	    (iface->bInterfaceSubClass != 1))
+	    (iface->desc.bInterfaceSubClass != 1))
 		return 0;
 	/* Multiple endpoints? What kind of mutant ninja-hub is this? */
-	if (iface->bNumEndpoints != 1)
+	if (iface->desc.bNumEndpoints != 1)
 		return 0;
 	ep = &iface->ep_desc[0];
 	/* Output endpoint? Curiousier and curiousier.. */

common/usb_kbd.c

@@ -229,7 +229,7 @@ int usb_kbd_deregister(void)
 
 static void usb_kbd_setled(struct usb_device *dev)
 {
-	struct usb_interface_descriptor *iface;
+	struct usb_interface *iface;
 	iface = &dev->config.if_desc[0];
 	leds=0;
 	if(scroll_lock!=0)
@@ -242,7 +242,7 @@ static void usb_kbd_setled(struct usb_device *dev)
 		leds|=1;
 	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 		USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
-		0x200, iface->bInterfaceNumber,(void *)&leds, 1, 0);
+		0x200, iface->desc.bInterfaceNumber, (void *)&leds, 1, 0);
 
 }
 
@@ -348,17 +348,21 @@ static int usb_kbd_irq(struct usb_device *dev)
 /* probes the USB device dev for keyboard type */
 static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
 {
-	struct usb_interface_descriptor *iface;
+	struct usb_interface *iface;
 	struct usb_endpoint_descriptor *ep;
 	int pipe,maxp;
 
 	if (dev->descriptor.bNumConfigurations != 1) return 0;
 	iface = &dev->config.if_desc[ifnum];
 
-	if (iface->bInterfaceClass != 3) return 0;
+	if (iface->desc.bInterfaceClass != 3)
-	if (iface->bInterfaceSubClass != 1) return 0;
+		return 0;
-	if (iface->bInterfaceProtocol != 1) return 0;
+	if (iface->desc.bInterfaceSubClass != 1)
-	if (iface->bNumEndpoints != 1) return 0;
+		return 0;
+	if (iface->desc.bInterfaceProtocol != 1)
+		return 0;
+	if (iface->desc.bNumEndpoints != 1)
+		return 0;
 
 	ep = &iface->ep_desc[0];
 
@@ -367,9 +371,9 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum)
 	USB_KBD_PRINTF("USB KBD found set protocol...\n");
 	/* ok, we found a USB Keyboard, install it */
 	/* usb_kbd_get_hid_desc(dev); */
-	usb_set_protocol(dev, iface->bInterfaceNumber, 0);
+	usb_set_protocol(dev, iface->desc.bInterfaceNumber, 0);
 	USB_KBD_PRINTF("USB KBD found set idle...\n");
-	usb_set_idle(dev, iface->bInterfaceNumber, REPEAT_RATE, 0);
+	usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0);
 	memset(&new[0], 0, 8);
 	memset(&old[0], 0, 8);
 	repeat_delay=0;

common/usb_storage.c

@@ -1070,7 +1070,7 @@ retry_it:
 int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 		      struct us_data *ss)
 {
-	struct usb_interface_descriptor *iface;
+	struct usb_interface *iface;
 	int i;
 	unsigned int flags = 0;
 
@@ -1094,9 +1094,9 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 #endif
 
 	if (dev->descriptor.bDeviceClass != 0 ||
-			iface->bInterfaceClass != USB_CLASS_MASS_STORAGE ||
+			iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE ||
-			iface->bInterfaceSubClass < US_SC_MIN ||
+			iface->desc.bInterfaceSubClass < US_SC_MIN ||
-			iface->bInterfaceSubClass > US_SC_MAX) {
+			iface->desc.bInterfaceSubClass > US_SC_MAX) {
 		/* if it's not a mass storage, we go no further */
 		return 0;
 	}
@@ -1119,8 +1119,8 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 		ss->subclass = subclass;
 		ss->protocol = protocol;
 	} else {
-		ss->subclass = iface->bInterfaceSubClass;
+		ss->subclass = iface->desc.bInterfaceSubClass;
-		ss->protocol = iface->bInterfaceProtocol;
+		ss->protocol = iface->desc.bInterfaceProtocol;
 	}
 
 	/* set the handler pointers based on the protocol */
@@ -1153,7 +1153,7 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 	 * An optional interrupt is OK (necessary for CBI protocol).
 	 * We will ignore any others.
 	 */
-	for (i = 0; i < iface->bNumEndpoints; i++) {
+	for (i = 0; i < iface->desc.bNumEndpoints; i++) {
 		/* is it an BULK endpoint? */
 		if ((iface->ep_desc[i].bmAttributes &
 		     USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) {
@@ -1178,7 +1178,7 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum,
 		  ss->ep_in, ss->ep_out, ss->ep_int);
 
 	/* Do some basic sanity checks, and bail if we find a problem */
-	if (usb_set_interface(dev, iface->bInterfaceNumber, 0) ||
+	if (usb_set_interface(dev, iface->desc.bInterfaceNumber, 0) ||
 	    !ss->ep_in || !ss->ep_out ||
 	    (ss->protocol == US_PR_CBI && ss->ep_int == 0)) {
 		USB_STOR_PRINTF("Problems with device\n");

cpu/ppc4xx/usbdev.c

@@ -21,7 +21,7 @@ void process_endpoints(unsigned short usb2d0_intrin)
 {
 	/*will hold the packet received */
 	struct usb_device_descriptor usb_device_packet;
-	struct usb_config_descriptor usb_config_packet;
+	struct usb_configuration_descriptor usb_config_packet;
 	struct usb_string_descriptor usb_string_packet;
 	struct devrequest setup_packet;
 	unsigned int *setup_packet_pt;
@@ -99,7 +99,7 @@ void process_endpoints(unsigned short usb2d0_intrin)
 				usb_config_packet.bConfigurationValue = 1;
 				usb_config_packet.iConfiguration = 0;
 				usb_config_packet.bmAttributes = 0x40;
-				usb_config_packet.MaxPower = 0;
+				usb_config_packet.bMaxPower = 0;
 
 				/*put packet in fifo */
 				packet_pt = (unsigned char *)&usb_config_packet;

drivers/usb/host/ehci-hcd.c

@@ -96,7 +96,7 @@ static struct descriptor {
 				 * UE_DIR_IN | EHCI_INTR_ENDPT
 				 */
 		3,		/* bmAttributes: UE_INTERRUPT */
-		8, 0,		/* wMaxPacketSize */
+		8,		/* wMaxPacketSize */
 		255		/* bInterval */
 	},
 };

drivers/usb/musb/musb_hcd.c

@@ -803,7 +803,7 @@ void usb_event_poll()
 {
 	struct stdio_dev *dev;
 	struct usb_device *usb_kbd_dev;
-	struct usb_interface_descriptor *iface;
+	struct usb_interface *iface;
 	struct usb_endpoint_descriptor *ep;
 	int pipe;
 	int maxp;

include/usb.h

@@ -27,6 +27,7 @@
 #define _USB_H_
 
 #include <usb_defs.h>
+#include <usbdescriptors.h>
 
 /* Everything is aribtrary */
 #define USB_ALTSETTINGALLOC		4
@@ -41,13 +42,6 @@
 
 #define USB_CNTL_TIMEOUT 100 /* 100ms timeout */
 
-/* String descriptor */
-struct usb_string_descriptor {
-	unsigned char	bLength;
-	unsigned char	bDescriptorType;
-	unsigned short	wData[1];
-} __attribute__ ((packed));
-
 /* device request (setup) */
 struct devrequest {
 	unsigned char	requesttype;
@@ -63,47 +57,9 @@ struct usb_descriptor_header {
 	unsigned char	bDescriptorType;
 } __attribute__ ((packed));
 
-/* Device descriptor */
+/* Interface */
-struct usb_device_descriptor {
+struct usb_interface {
-	unsigned char	bLength;
+	struct usb_interface_descriptor desc;
-	unsigned char	bDescriptorType;
-	unsigned short	bcdUSB;
-	unsigned char	bDeviceClass;
-	unsigned char	bDeviceSubClass;
-	unsigned char	bDeviceProtocol;
-	unsigned char	bMaxPacketSize0;
-	unsigned short	idVendor;
-	unsigned short	idProduct;
-	unsigned short	bcdDevice;
-	unsigned char	iManufacturer;
-	unsigned char	iProduct;
-	unsigned char	iSerialNumber;
-	unsigned char	bNumConfigurations;
-} __attribute__ ((packed));
-
-/* Endpoint descriptor */
-struct usb_endpoint_descriptor {
-	unsigned char	bLength;
-	unsigned char	bDescriptorType;
-	unsigned char	bEndpointAddress;
-	unsigned char	bmAttributes;
-	unsigned short	wMaxPacketSize;
-	unsigned char	bInterval;
-	unsigned char	bRefresh;
-	unsigned char	bSynchAddress;
-} __attribute__ ((packed)) __attribute__ ((aligned(2)));
-
-/* Interface descriptor */
-struct usb_interface_descriptor {
-	unsigned char	bLength;
-	unsigned char	bDescriptorType;
-	unsigned char	bInterfaceNumber;
-	unsigned char	bAlternateSetting;
-	unsigned char	bNumEndpoints;
-	unsigned char	bInterfaceClass;
-	unsigned char	bInterfaceSubClass;
-	unsigned char	bInterfaceProtocol;
-	unsigned char	iInterface;
 
 	unsigned char	no_of_ep;
 	unsigned char	num_altsetting;
@@ -112,20 +68,12 @@ struct usb_interface_descriptor {
 	struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS];
 } __attribute__ ((packed));
 
-
+/* Configuration information.. */
-/* Configuration descriptor information.. */
+struct usb_config {
-struct usb_config_descriptor {
+	struct usb_configuration_descriptor desc;
-	unsigned char	bLength;
-	unsigned char	bDescriptorType;
-	unsigned short	wTotalLength;
-	unsigned char	bNumInterfaces;
-	unsigned char	bConfigurationValue;
-	unsigned char	iConfiguration;
-	unsigned char	bmAttributes;
-	unsigned char	MaxPower;
 
 	unsigned char	no_of_if;	/* number of interfaces */
-	struct usb_interface_descriptor if_desc[USB_MAXINTERFACES];
+	struct usb_interface if_desc[USB_MAXINTERFACES];
 } __attribute__ ((packed));
 
 enum {
@@ -156,7 +104,7 @@ struct usb_device {
 
 	int configno;			/* selected config number */
 	struct usb_device_descriptor descriptor; /* Device Descriptor */
-	struct usb_config_descriptor config; /* config descriptor */
+	struct usb_config config; /* config descriptor */
 
 	int have_langid;		/* whether string_langid is valid yet */
 	int string_langid;		/* language ID for strings */