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USB Consolidate descriptor definitions

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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>
This commit is contained in:
Tom Rix
2009-10-31 12:37:38 -05:00
committed by Remy Bohmer
parent bb3bcfa242
commit 8f8bd565f3
8 changed files with 61 additions and 110 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
include/usb.h
View File

@@ -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 */
struct usb_device_descriptor {
unsigned char bLength;
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;
/* Interface */
struct usb_interface {
struct usb_interface_descriptor desc;
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 descriptor information.. */
struct usb_config_descriptor {
unsigned char bLength;
unsigned char bDescriptorType;
unsigned short wTotalLength;
unsigned char bNumInterfaces;
unsigned char bConfigurationValue;
unsigned char iConfiguration;
unsigned char bmAttributes;
unsigned char MaxPower;
/* Configuration information.. */
struct usb_config {
struct usb_configuration_descriptor desc;
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 */