Files
2026-08-20 20:28:40 +01:00

142 lines
4.9 KiB
C

#ifndef _IUSB_H_
/* Standard USB protocol defines */
/*
* Copyright 2013 Graeme W. Gill
* All rights reserved.
*
* This material is licenced under the GNU GENERAL PUBLIC LICENSE Version 2 or later :-
* see the License2.txt file for licencing details.
*/
#ifdef __cplusplus
extern "C" {
#endif
/* Device and/or Interface Class codes */
#define IUSB_CLASS_PER_INTERFACE 0x00 /* for DeviceClass */
#define IUSB_CLASS_AUDIO 0x01
#define IUSB_CLASS_COMM 0x02
#define IUSB_CLASS_HID 0x03
#define IUSB_CLASS_PHYSICAL 0x05
#define IUSB_CLASS_STILL_IMAGE 0x06
#define IUSB_CLASS_PRINTER 0x07
#define IUSB_CLASS_MASS_STORAGE 0x08
#define IUSB_CLASS_HUB 0x09
#define IUSB_CLASS_CDC_DATA 0x0a
#define IUSB_CLASS_SMART_CARD 0x0b
#define IUSB_CLASS_CONT_SECURITY 0x0d
#define IUSB_CLASS_VIDEO 0x0e
#define IUSB_CLASS_DIAGNOSTIC 0xdc
#define IUSB_CLASS_WIRELESS 0xe0
#define IUSB_CLASS_MISC 0xef
#define IUSB_CLASS_APP_SPEC 0xfe
#define IUSB_CLASS_VENDOR_SPEC 0xff
/* Standard Descriptor types wValue high byte */
#define IUSB_DESC_TYPE_DEVICE 0x01
#define IUSB_DESC_TYPE_CONFIG 0x02
#define IUSB_DESC_TYPE_STRING 0x03
#define IUSB_DESC_TYPE_INTERFACE 0x04
#define IUSB_DESC_TYPE_ENDPOINT 0x05
#define IUSB_DESC_TYPE_DEVICE_QUALIFIER 0x06
#define IUSB_DESC_TYPE_OTHER_SPEED_CONFIG 0x07
#define IUSB_DESC_TYPE_INTERFACE_POWER 0x08
#define IUSB_DESC_TYPE_OTG 0x09
#define IUSB_DESC_TYPE_DEBUG 0x0a
#define IUSB_DESC_TYPE_INTERFACE_ASSOCIATION 0x0b
/* Descriptor sizes per descriptor type */
#define IUSB_DESC_TYPE_DEVICE_SIZE 18
#define IUSB_DESC_TYPE_CONFIG_SIZE 9
#define IUSB_DESC_TYPE_INTERFACE_SIZE 9
#define IUSB_DESC_TYPE_ENDPOINT_SIZE 7
#define IUSB_DESC_TYPE_STRING_MIN_SIZE 2
#define IUSB_DESC_TYPE_STRING_MAX_SIZE 256
/* Endpoint descriptor bEndpointAddress */
#define IUSB_ENDPOINT_NUM_MASK 0x0f
#define IUSB_ENDPOINT_DIR_MASK 0x80
#define IUSB_ENDPOINT_DIR_SHIFT 7
#define IUSB_ENDPOINT_IN 0x80
#define IUSB_ENDPOINT_OUT 0x00
/* Endpoint descriptor bmAttributes */
#define IUSB_ENDPOINT_TYPE_MASK 0x03
#define IUSB_ENDPOINT_TYPE_CONTROL 0x00
#define IUSB_ENDPOINT_TYPE_ISOCHRONOUS 0x01
#define IUSB_ENDPOINT_TYPE_BULK 0x02
#define IUSB_ENDPOINT_TYPE_INTERRUPT 0x03
#define IUSB_ENDPOINT_SYNC_MASK 0x0c
#define IUSB_ENDPOINT_SYNC_NONE 0x00
#define IUSB_ENDPOINT_SYNC_ASYNC 0x04
#define IUSB_ENDPOINT_SYNC_ADPT 0x08
#define IUSB_ENDPOINT_SYNC_SYNC 0x0c
#define IUSB_ENDPOINT_USAGE_MASK 0x30
#define IUSB_ENDPOINT_USAGE_DATA 0x00
#define IUSB_ENDPOINT_USAGE_FEED 0x10
#define IUSB_ENDPOINT_USAGE_IMPL_FEED 0x20
/* Endpoint descriptor wMaxPacketSize */
#define IUSB_ENDPOINT_MAX_PKTSZ_MASK 0x03ff
#define IUSB_ENDPOINT_MAX_XACTS_MASK 0x0c00
#define IUSB_ENDPOINT_MAX_XACTS_SHIFT 11
/* OTG descriptor bmAttributes */
#define IUSB_OTG_SRP 0x00
#define IUSB_OTG_HNP 0x01
/* Control request */
#define IUSB_REQ_HEADER_SIZE 8
/* Request bmRequestType */
#define IUSB_REQ_HOST_TO_DEV 0x00
#define IUSB_REQ_DEV_TO_HOST 0x80
#define IUSB_REQ_DIR_MASK 0x80
#define IUSB_REQ_TYPE_SHIFT 5
#define IUSB_REQ_TYPE_STANDARD (0x00 << IUSB_REQ_TYPE_SHIFT) // 0x00
#define IUSB_REQ_TYPE_CLASS (0x01 << IUSB_REQ_TYPE_SHIFT) // 0x20
#define IUSB_REQ_TYPE_VENDOR (0x02 << IUSB_REQ_TYPE_SHIFT) // 0x40
#define IUSB_REQ_TYPE_RESERVED (0x03 << IUSB_REQ_TYPE_SHIFT) // 0x60
#define IUSB_REQ_TYPE_MASK (0x03 << IUSB_REQ_TYPE_SHIFT) // 0x60
#define IUSB_REQ_RECIP_DEVICE 0x00
#define IUSB_REQ_RECIP_INTERFACE 0x01
#define IUSB_REQ_RECIP_ENDPOINT 0x02
#define IUSB_REQ_RECIP_OTHER 0x03
#define IUSB_REQ_RECIP_MASK 0x1f
/* Standard bRequest values */
#define IUSB_REQ_GET_STATUS 0x00
#define IUSB_REQ_CLEAR_FEATURE 0x01
#define IUSB_REQ_SET_FEATURE 0x03
#define IUSB_REQ_SET_ADDRESS 0x05
#define IUSB_REQ_GET_DESCRIPTOR 0x06
#define IUSB_REQ_SET_DESCRIPTOR 0x07
#define IUSB_REQ_GET_CONFIGURATION 0x08
#define IUSB_REQ_SET_CONFIGURATION 0x09
#define IUSB_REQ_GET_INTERFACE 0x0a
#define IUSB_REQ_SET_INTERFACE 0x0b
#define IUSB_REQ_SYNCH_FRAME 0x0c
/* Feature selector */
#define IUSB_FEATURE_EP_HALT 0
#define IUSB_FEATURE_DEV_REMOTE_WAKEUP 1
/* REQ_GET_STATUS return values */
#define IUSB_DEVICE_STATUS_SELFPWR 0x0001
#define IUSB_DEVICE_STATUS_REMOTE_WAKEUP 0x0002
#define IUSB_ENDPOINT_STATUS_HALT 0x0001
#ifdef __cplusplus
}
#endif
#define _IUSB_H_
#endif /* _IUSB_H_ */