167 lines
9.4 KiB
C
167 lines
9.4 KiB
C
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/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
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This software may be distributed and modified under the terms of the GNU
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General Public License version 2 (GPL2) as published by the Free Software
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Foundation and appearing in the file GPL2.TXT included in the packaging of
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this file. Please note that GPL2 Section 2[b] requires that all works based
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on this software must also be made publicly available under the terms of
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the GPL2 ("Copyleft").
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Contact information
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-------------------
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Circuits At Home, LTD
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Web : http://www.circuitsathome.com
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e-mail : support@circuitsathome.com
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*/
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#if !defined(_usb_h_) || defined(_ch9_h_)
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#error "Never include usb_ch9.h directly; include Usb.h instead"
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#else
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/* USB chapter 9 structures */
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#define _ch9_h_
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/* Misc.USB constants */
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#define DEV_DESCR_LEN 18 //device descriptor length
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#define CONF_DESCR_LEN 9 //configuration descriptor length
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#define INTR_DESCR_LEN 9 //interface descriptor length
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#define EP_DESCR_LEN 7 //endpoint descriptor length
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/* Standard Device Requests */
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#define USB_REQUEST_GET_STATUS 0 // Standard Device Request - GET STATUS
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#define USB_REQUEST_CLEAR_FEATURE 1 // Standard Device Request - CLEAR FEATURE
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#define USB_REQUEST_SET_FEATURE 3 // Standard Device Request - SET FEATURE
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#define USB_REQUEST_SET_ADDRESS 5 // Standard Device Request - SET ADDRESS
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#define USB_REQUEST_GET_DESCRIPTOR 6 // Standard Device Request - GET DESCRIPTOR
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#define USB_REQUEST_SET_DESCRIPTOR 7 // Standard Device Request - SET DESCRIPTOR
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#define USB_REQUEST_GET_CONFIGURATION 8 // Standard Device Request - GET CONFIGURATION
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#define USB_REQUEST_SET_CONFIGURATION 9 // Standard Device Request - SET CONFIGURATION
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#define USB_REQUEST_GET_INTERFACE 10 // Standard Device Request - GET INTERFACE
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#define USB_REQUEST_SET_INTERFACE 11 // Standard Device Request - SET INTERFACE
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#define USB_REQUEST_SYNCH_FRAME 12 // Standard Device Request - SYNCH FRAME
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#define USB_FEATURE_ENDPOINT_HALT 0 // CLEAR/SET FEATURE - Endpoint Halt
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#define USB_FEATURE_DEVICE_REMOTE_WAKEUP 1 // CLEAR/SET FEATURE - Device remote wake-up
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#define USB_FEATURE_TEST_MODE 2 // CLEAR/SET FEATURE - Test mode
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/* Setup Data Constants */
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#define USB_SETUP_HOST_TO_DEVICE 0x00 // Device Request bmRequestType transfer direction - host to device transfer
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#define USB_SETUP_DEVICE_TO_HOST 0x80 // Device Request bmRequestType transfer direction - device to host transfer
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#define USB_SETUP_TYPE_STANDARD 0x00 // Device Request bmRequestType type - standard
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#define USB_SETUP_TYPE_CLASS 0x20 // Device Request bmRequestType type - class
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#define USB_SETUP_TYPE_VENDOR 0x40 // Device Request bmRequestType type - vendor
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#define USB_SETUP_RECIPIENT_DEVICE 0x00 // Device Request bmRequestType recipient - device
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#define USB_SETUP_RECIPIENT_INTERFACE 0x01 // Device Request bmRequestType recipient - interface
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#define USB_SETUP_RECIPIENT_ENDPOINT 0x02 // Device Request bmRequestType recipient - endpoint
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#define USB_SETUP_RECIPIENT_OTHER 0x03 // Device Request bmRequestType recipient - other
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/* USB descriptors */
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#define USB_DESCRIPTOR_DEVICE 0x01 // bDescriptorType for a Device Descriptor.
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#define USB_DESCRIPTOR_CONFIGURATION 0x02 // bDescriptorType for a Configuration Descriptor.
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#define USB_DESCRIPTOR_STRING 0x03 // bDescriptorType for a String Descriptor.
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#define USB_DESCRIPTOR_INTERFACE 0x04 // bDescriptorType for an Interface Descriptor.
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#define USB_DESCRIPTOR_ENDPOINT 0x05 // bDescriptorType for an Endpoint Descriptor.
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#define USB_DESCRIPTOR_DEVICE_QUALIFIER 0x06 // bDescriptorType for a Device Qualifier.
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#define USB_DESCRIPTOR_OTHER_SPEED 0x07 // bDescriptorType for a Other Speed Configuration.
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#define USB_DESCRIPTOR_INTERFACE_POWER 0x08 // bDescriptorType for Interface Power.
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#define USB_DESCRIPTOR_OTG 0x09 // bDescriptorType for an OTG Descriptor.
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#define HID_DESCRIPTOR_HID 0x21
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/* OTG SET FEATURE Constants */
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#define OTG_FEATURE_B_HNP_ENABLE 3 // SET FEATURE OTG - Enable B device to perform HNP
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#define OTG_FEATURE_A_HNP_SUPPORT 4 // SET FEATURE OTG - A device supports HNP
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#define OTG_FEATURE_A_ALT_HNP_SUPPORT 5 // SET FEATURE OTG - Another port on the A device supports HNP
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/* USB Endpoint Transfer Types */
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#define USB_TRANSFER_TYPE_CONTROL 0x00 // Endpoint is a control endpoint.
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#define USB_TRANSFER_TYPE_ISOCHRONOUS 0x01 // Endpoint is an isochronous endpoint.
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#define USB_TRANSFER_TYPE_BULK 0x02 // Endpoint is a bulk endpoint.
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#define USB_TRANSFER_TYPE_INTERRUPT 0x03 // Endpoint is an interrupt endpoint.
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#define bmUSB_TRANSFER_TYPE 0x03 // bit mask to separate transfer type from ISO attributes
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/* Standard Feature Selectors for CLEAR_FEATURE Requests */
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#define USB_FEATURE_ENDPOINT_STALL 0 // Endpoint recipient
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#define USB_FEATURE_DEVICE_REMOTE_WAKEUP 1 // Device recipient
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#define USB_FEATURE_TEST_MODE 2 // Device recipient
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/* descriptor data structures */
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/* Device descriptor structure */
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typedef struct {
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uint8_t bLength; // Length of this descriptor.
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uint8_t bDescriptorType; // DEVICE descriptor type (USB_DESCRIPTOR_DEVICE).
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uint16_t bcdUSB; // USB Spec Release Number (BCD).
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uint8_t bDeviceClass; // Class code (assigned by the USB-IF). 0xFF-Vendor specific.
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uint8_t bDeviceSubClass; // Subclass code (assigned by the USB-IF).
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uint8_t bDeviceProtocol; // Protocol code (assigned by the USB-IF). 0xFF-Vendor specific.
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uint8_t bMaxPacketSize0; // Maximum packet size for endpoint 0.
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uint16_t idVendor; // Vendor ID (assigned by the USB-IF).
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uint16_t idProduct; // Product ID (assigned by the manufacturer).
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uint16_t bcdDevice; // Device release number (BCD).
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uint8_t iManufacturer; // Index of String Descriptor describing the manufacturer.
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uint8_t iProduct; // Index of String Descriptor describing the product.
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uint8_t iSerialNumber; // Index of String Descriptor with the device's serial number.
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uint8_t bNumConfigurations; // Number of possible configurations.
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} __attribute__((packed)) USB_DEVICE_DESCRIPTOR;
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/* Configuration descriptor structure */
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typedef struct {
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uint8_t bLength; // Length of this descriptor.
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uint8_t bDescriptorType; // CONFIGURATION descriptor type (USB_DESCRIPTOR_CONFIGURATION).
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uint16_t wTotalLength; // Total length of all descriptors for this configuration.
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uint8_t bNumInterfaces; // Number of interfaces in this configuration.
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uint8_t bConfigurationValue; // Value of this configuration (1 based).
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uint8_t iConfiguration; // Index of String Descriptor describing the configuration.
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uint8_t bmAttributes; // Configuration characteristics.
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uint8_t bMaxPower; // Maximum power consumed by this configuration.
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} __attribute__((packed)) USB_CONFIGURATION_DESCRIPTOR;
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/* Interface descriptor structure */
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typedef struct {
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uint8_t bLength; // Length of this descriptor.
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uint8_t bDescriptorType; // INTERFACE descriptor type (USB_DESCRIPTOR_INTERFACE).
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uint8_t bInterfaceNumber; // Number of this interface (0 based).
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uint8_t bAlternateSetting; // Value of this alternate interface setting.
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uint8_t bNumEndpoints; // Number of endpoints in this interface.
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uint8_t bInterfaceClass; // Class code (assigned by the USB-IF). 0xFF-Vendor specific.
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uint8_t bInterfaceSubClass; // Subclass code (assigned by the USB-IF).
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uint8_t bInterfaceProtocol; // Protocol code (assigned by the USB-IF). 0xFF-Vendor specific.
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uint8_t iInterface; // Index of String Descriptor describing the interface.
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} __attribute__((packed)) USB_INTERFACE_DESCRIPTOR;
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/* Endpoint descriptor structure */
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typedef struct {
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uint8_t bLength; // Length of this descriptor.
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uint8_t bDescriptorType; // ENDPOINT descriptor type (USB_DESCRIPTOR_ENDPOINT).
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uint8_t bEndpointAddress; // Endpoint address. Bit 7 indicates direction (0=OUT, 1=IN).
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uint8_t bmAttributes; // Endpoint transfer type.
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uint16_t wMaxPacketSize; // Maximum packet size.
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uint8_t bInterval; // Polling interval in frames.
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} __attribute__((packed)) USB_ENDPOINT_DESCRIPTOR;
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/* HID descriptor */
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typedef struct {
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uint8_t bLength;
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uint8_t bDescriptorType;
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uint16_t bcdHID; // HID class specification release
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uint8_t bCountryCode;
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uint8_t bNumDescriptors; // Number of additional class specific descriptors
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uint8_t bDescrType; // Type of class descriptor
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uint16_t wDescriptorLength; // Total size of the Report descriptor
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} __attribute__((packed)) USB_HID_DESCRIPTOR;
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typedef struct {
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uint8_t bDescrType; // Type of class descriptor
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uint16_t wDescriptorLength; // Total size of the Report descriptor
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} __attribute__((packed)) HID_CLASS_DESCRIPTOR_LEN_AND_TYPE;
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#endif // _ch9_h_
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