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u-boot/include/usbdescriptors.h
Tom Rini b2fb47f187 USB: Use (get|put)_unaligned for accessing wMaxPacketSize 
In 9792987721 Stefan describes a usecase
where the previous behavior of leaving wMaxPacketSize be unaligned
caused fatal problems.  The initial fix for this problem was incomplete
however as it showed another cases of non-aligned access that previously
worked implicitly.  This switches to making sure that all access of
wMaxPacketSize are done via (get|put)_unaligned.

In order to maintain a level of readability to the code in some cases
we now use a variable for the value of wMaxPacketSize and in others, a
macro.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Remy Bohmer <linux@bohmer.net>

OpenRISC:
Tested-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>

Beagleboard xM, Pandaboard run-tested, s5p_goni build-tested.
Signed-off-by: Tom Rini <trini@ti.com>
2011-12-16 21:37:17 +01:00

533 lines
14 KiB
C
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/*
* (C) Copyright 2003
* Gerry Hamel, geh@ti.com, Texas Instruments
*
* Based on
* linux/drivers/usbd/usb-function.h - USB Function
*
* Copyright (c) 2000, 2001, 2002 Lineo
* Copyright (c) 2001 Hewlett Packard
*
* By:
* Stuart Lynne <sl@lineo.com>,
* Tom Rushworth <tbr@lineo.com>,
* Bruce Balden <balden@lineo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* USB Descriptors - Create a complete description of all of the
* function driver capabilities. These map directly to the USB descriptors.
*
* This heirarchy is created by the functions drivers and is passed to the
* usb-device driver when the function driver is registered.
*
* device
* configuration
* interface
* alternate
* class
* class
* alternate
* endpoint
* endpoint
* interface
* alternate
* endpoint
* endpoint
* configuration
* interface
* alternate
* endpoint
* endpoint
*
*
* The configuration structures refer to the USB Configurations that will be
* made available to a USB HOST during the enumeration process.
*
* The USB HOST will select a configuration and optionally an interface with
* the usb set configuration and set interface commands.
*
* The selected interface (or the default interface if not specifically
* selected) will define the list of endpoints that will be used.
*
* The configuration and interfaces are stored in an array that is indexed
* by the specified configuratin or interface number minus one.
*
* A configuration number of zero is used to specify a return to the unconfigured
* state.
*
*/
#ifndef __USBDESCRIPTORS_H__
#define __USBDESCRIPTORS_H__
#include <asm/types.h>
/*
* communications class types
*
* c.f. CDC USB Class Definitions for Communications Devices
* c.f. WMCD USB CDC Subclass Specification for Wireless Mobile Communications Devices
*
*/
#define CLASS_BCD_VERSION 0x0110
/* c.f. CDC 4.1 Table 14 */
#define COMMUNICATIONS_DEVICE_CLASS 0x02
/* c.f. CDC 4.2 Table 15 */
#define COMMUNICATIONS_INTERFACE_CLASS_CONTROL 0x02
#define COMMUNICATIONS_INTERFACE_CLASS_DATA 0x0A
#define COMMUNICATIONS_INTERFACE_CLASS_VENDOR 0x0FF
/* c.f. CDC 4.3 Table 16 */
#define COMMUNICATIONS_NO_SUBCLASS 0x00
#define COMMUNICATIONS_DLCM_SUBCLASS 0x01
#define COMMUNICATIONS_ACM_SUBCLASS 0x02
#define COMMUNICATIONS_TCM_SUBCLASS 0x03
#define COMMUNICATIONS_MCCM_SUBCLASS 0x04
#define COMMUNICATIONS_CCM_SUBCLASS 0x05
#define COMMUNICATIONS_ENCM_SUBCLASS 0x06
#define COMMUNICATIONS_ANCM_SUBCLASS 0x07
/* c.f. WMCD 5.1 */
#define COMMUNICATIONS_WHCM_SUBCLASS 0x08
#define COMMUNICATIONS_DMM_SUBCLASS 0x09
#define COMMUNICATIONS_MDLM_SUBCLASS 0x0a
#define COMMUNICATIONS_OBEX_SUBCLASS 0x0b
/* c.f. CDC 4.4 Table 17 */
#define COMMUNICATIONS_NO_PROTOCOL 0x00
#define COMMUNICATIONS_V25TER_PROTOCOL 0x01 /*Common AT Hayes compatible*/
/* c.f. CDC 4.5 Table 18 */
#define DATA_INTERFACE_CLASS 0x0a
/* c.f. CDC 4.6 No Table */
#define DATA_INTERFACE_SUBCLASS_NONE 0x00 /* No subclass pertinent */
/* c.f. CDC 4.7 Table 19 */
#define DATA_INTERFACE_PROTOCOL_NONE 0x00 /* No class protcol required */
/* c.f. CDC 5.2.3 Table 24 */
#define CS_INTERFACE 0x24
#define CS_ENDPOINT 0x25
/*
* bDescriptorSubtypes
*
* c.f. CDC 5.2.3 Table 25
* c.f. WMCD 5.3 Table 5.3
*/
#define USB_ST_HEADER 0x00
#define USB_ST_CMF 0x01
#define USB_ST_ACMF 0x02
#define USB_ST_DLMF 0x03
#define USB_ST_TRF 0x04
#define USB_ST_TCLF 0x05
#define USB_ST_UF 0x06
#define USB_ST_CSF 0x07
#define USB_ST_TOMF 0x08
#define USB_ST_USBTF 0x09
#define USB_ST_NCT 0x0a
#define USB_ST_PUF 0x0b
#define USB_ST_EUF 0x0c
#define USB_ST_MCMF 0x0d
#define USB_ST_CCMF 0x0e
#define USB_ST_ENF 0x0f
#define USB_ST_ATMNF 0x10
#define USB_ST_WHCM 0x11
#define USB_ST_MDLM 0x12
#define USB_ST_MDLMD 0x13
#define USB_ST_DMM 0x14
#define USB_ST_OBEX 0x15
#define USB_ST_CS 0x16
#define USB_ST_CSD 0x17
#define USB_ST_TCM 0x18
/* endpoint modifiers
* static struct usb_endpoint_description function_default_A_1[] = {
*
* {this_endpoint: 0, attributes: CONTROL, max_size: 8, polling_interval: 0 },
* {this_endpoint: 1, attributes: BULK, max_size: 64, polling_interval: 0, direction: IN},
* {this_endpoint: 2, attributes: BULK, max_size: 64, polling_interval: 0, direction: OUT},
* {this_endpoint: 3, attributes: INTERRUPT, max_size: 8, polling_interval: 0},
*
*
*/
#define OUT 0x00
#define IN 0x80
#define CONTROL 0x00
#define ISOCHRONOUS 0x01
#define BULK 0x02
#define INTERRUPT 0x03
/* configuration modifiers
*/
#define BMATTRIBUTE_RESERVED 0x80
#define BMATTRIBUTE_SELF_POWERED 0x40
/*
* standard usb descriptor structures
*/
struct usb_endpoint_descriptor {
u8 bLength;
u8 bDescriptorType; /* 0x5 */
u8 bEndpointAddress;
u8 bmAttributes;
u16 wMaxPacketSize;
u8 bInterval;
} __attribute__ ((packed));
struct usb_interface_descriptor {
u8 bLength;
u8 bDescriptorType; /* 0x04 */
u8 bInterfaceNumber;
u8 bAlternateSetting;
u8 bNumEndpoints;
u8 bInterfaceClass;
u8 bInterfaceSubClass;
u8 bInterfaceProtocol;
u8 iInterface;
} __attribute__ ((packed));
struct usb_configuration_descriptor {
u8 bLength;
u8 bDescriptorType; /* 0x2 */
u16 wTotalLength;
u8 bNumInterfaces;
u8 bConfigurationValue;
u8 iConfiguration;
u8 bmAttributes;
u8 bMaxPower;
} __attribute__ ((packed));
struct usb_device_descriptor {
u8 bLength;
u8 bDescriptorType; /* 0x01 */
u16 bcdUSB;
u8 bDeviceClass;
u8 bDeviceSubClass;
u8 bDeviceProtocol;
u8 bMaxPacketSize0;
u16 idVendor;
u16 idProduct;
u16 bcdDevice;
u8 iManufacturer;
u8 iProduct;
u8 iSerialNumber;
u8 bNumConfigurations;
} __attribute__ ((packed));
struct usb_string_descriptor {
u8 bLength;
u8 bDescriptorType; /* 0x03 */
u16 wData[0];
} __attribute__ ((packed));
struct usb_generic_descriptor {
u8 bLength;
u8 bDescriptorType;
u8 bDescriptorSubtype;
} __attribute__ ((packed));
/*
* communications class descriptor structures
*
* c.f. CDC 5.2 Table 25c
*/
struct usb_class_function_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype;
} __attribute__ ((packed));
struct usb_class_function_descriptor_generic {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype;
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_header_function_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x00 */
u16 bcdCDC;
} __attribute__ ((packed));
struct usb_class_call_management_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x01 */
u8 bmCapabilities;
u8 bDataInterface;
} __attribute__ ((packed));
struct usb_class_abstract_control_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x02 */
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_direct_line_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x03 */
} __attribute__ ((packed));
struct usb_class_telephone_ringer_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x04 */
u8 bRingerVolSeps;
u8 bNumRingerPatterns;
} __attribute__ ((packed));
struct usb_class_telephone_call_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x05 */
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_union_function_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x06 */
u8 bMasterInterface;
/* u8 bSlaveInterface0[0]; */
u8 bSlaveInterface0;
} __attribute__ ((packed));
struct usb_class_country_selection_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x07 */
u8 iCountryCodeRelDate;
u16 wCountryCode0[0];
} __attribute__ ((packed));
struct usb_class_telephone_operational_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x08 */
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_usb_terminal_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x09 */
u8 bEntityId;
u8 bInterfaceNo;
u8 bOutInterfaceNo;
u8 bmOptions;
u8 bChild0[0];
} __attribute__ ((packed));
struct usb_class_network_channel_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0a */
u8 bEntityId;
u8 iName;
u8 bChannelIndex;
u8 bPhysicalInterface;
} __attribute__ ((packed));
struct usb_class_protocol_unit_function_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0b */
u8 bEntityId;
u8 bProtocol;
u8 bChild0[0];
} __attribute__ ((packed));
struct usb_class_extension_unit_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0c */
u8 bEntityId;
u8 bExtensionCode;
u8 iName;
u8 bChild0[0];
} __attribute__ ((packed));
struct usb_class_multi_channel_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0d */
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_capi_control_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0e */
u8 bmCapabilities;
} __attribute__ ((packed));
struct usb_class_ethernet_networking_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x0f */
u8 iMACAddress;
u32 bmEthernetStatistics;
u16 wMaxSegmentSize;
u16 wNumberMCFilters;
u8 bNumberPowerFilters;
} __attribute__ ((packed));
struct usb_class_atm_networking_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x10 */
u8 iEndSystermIdentifier;
u8 bmDataCapabilities;
u8 bmATMDeviceStatistics;
u16 wType2MaxSegmentSize;
u16 wType3MaxSegmentSize;
u16 wMaxVC;
} __attribute__ ((packed));
struct usb_class_mdlm_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x12 */
u16 bcdVersion;
u8 bGUID[16];
} __attribute__ ((packed));
struct usb_class_mdlmd_descriptor {
u8 bFunctionLength;
u8 bDescriptorType;
u8 bDescriptorSubtype; /* 0x13 */
u8 bGuidDescriptorType;
u8 bDetailData[0];
} __attribute__ ((packed));
/*
* HID class descriptor structures
*
* c.f. HID 6.2.1
*/
struct usb_class_hid_descriptor {
u8 bLength;
u8 bDescriptorType;
u16 bcdCDC;
u8 bCountryCode;
u8 bNumDescriptors; /* 0x01 */
u8 bDescriptorType0;
u16 wDescriptorLength0;
/* optional descriptors are not supported. */
} __attribute__((packed));
struct usb_class_report_descriptor {
u8 bLength; /* dummy */
u8 bDescriptorType;
u16 wLength;
u8 bData[0];
} __attribute__((packed));
/*
* descriptor union structures
*/
struct usb_descriptor {
union {
struct usb_generic_descriptor generic;
struct usb_endpoint_descriptor endpoint;
struct usb_interface_descriptor interface;
struct usb_configuration_descriptor configuration;
struct usb_device_descriptor device;
struct usb_string_descriptor string;
} descriptor;
} __attribute__ ((packed));
struct usb_class_descriptor {
union {
struct usb_class_function_descriptor function;
struct usb_class_function_descriptor_generic generic;
struct usb_class_header_function_descriptor header_function;
struct usb_class_call_management_descriptor call_management;
struct usb_class_abstract_control_descriptor abstract_control;
struct usb_class_direct_line_descriptor direct_line;
struct usb_class_telephone_ringer_descriptor telephone_ringer;
struct usb_class_telephone_operational_descriptor telephone_operational;
struct usb_class_telephone_call_descriptor telephone_call;
struct usb_class_union_function_descriptor union_function;
struct usb_class_country_selection_descriptor country_selection;
struct usb_class_usb_terminal_descriptor usb_terminal;
struct usb_class_network_channel_descriptor network_channel;
struct usb_class_extension_unit_descriptor extension_unit;
struct usb_class_multi_channel_descriptor multi_channel;
struct usb_class_capi_control_descriptor capi_control;
struct usb_class_ethernet_networking_descriptor ethernet_networking;
struct usb_class_atm_networking_descriptor atm_networking;
struct usb_class_mdlm_descriptor mobile_direct;
struct usb_class_mdlmd_descriptor mobile_direct_detail;
struct usb_class_hid_descriptor hid;
} descriptor;
} __attribute__ ((packed));
#ifdef DEBUG
static inline void print_device_descriptor(struct usb_device_descriptor *d)
{
serial_printf("usb device descriptor \n");
serial_printf("\tbLength %2.2x\n", d->bLength);
serial_printf("\tbDescriptorType %2.2x\n", d->bDescriptorType);
serial_printf("\tbcdUSB %4.4x\n", d->bcdUSB);
serial_printf("\tbDeviceClass %2.2x\n", d->bDeviceClass);
serial_printf("\tbDeviceSubClass %2.2x\n", d->bDeviceSubClass);
serial_printf("\tbDeviceProtocol %2.2x\n", d->bDeviceProtocol);
serial_printf("\tbMaxPacketSize0 %2.2x\n", d->bMaxPacketSize0);
serial_printf("\tidVendor %4.4x\n", d->idVendor);
serial_printf("\tidProduct %4.4x\n", d->idProduct);
serial_printf("\tbcdDevice %4.4x\n", d->bcdDevice);
serial_printf("\tiManufacturer %2.2x\n", d->iManufacturer);
serial_printf("\tiProduct %2.2x\n", d->iProduct);
serial_printf("\tiSerialNumber %2.2x\n", d->iSerialNumber);
serial_printf("\tbNumConfigurations %2.2x\n", d->bNumConfigurations);
}
#else
/* stubs */
#define print_device_descriptor(d)
#endif /* DEBUG */
#endif
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