128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/*
|
|
* This file is part of the libopencm3 project.
|
|
*
|
|
* Copyright (C) 2010 Gareth McMullin <gareth@blacksphere.co.nz>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __CDC_H
|
|
#define __CDC_H
|
|
|
|
/* Definitions of Communications Device Class from
|
|
* "Universal Serial Bus Class Definitions for Communications Devices
|
|
* Revision 1.2"
|
|
*/
|
|
|
|
/* Table 2: Communications Device Class Code */
|
|
#define USB_CLASS_CDC 0x02
|
|
|
|
/* Table 4: Class Subclass Code */
|
|
#define USB_CDC_SUBCLASS_DLCM 0x01
|
|
#define USB_CDC_SUBCLASS_ACM 0x02
|
|
/* ... */
|
|
|
|
/* Table 5 Communications Interface Class Control Protocol Codes */
|
|
#define USB_CDC_PROTOCOL_NONE 0x00
|
|
#define USB_CDC_PROTOCOL_AT 0x01
|
|
/* ... */
|
|
|
|
/* Table 6: Data Interface Class Code */
|
|
#define USB_CLASS_DATA 0x0A
|
|
|
|
/* Table 12: Type Values for the bDescriptorType Field */
|
|
#define CS_INTERFACE 0x24
|
|
#define CS_ENDPOINT 0x25
|
|
|
|
/* Table 13: bDescriptor SubType in Communications Class Functional
|
|
* Descriptors */
|
|
#define USB_CDC_TYPE_HEADER 0x00
|
|
#define USB_CDC_TYPE_CALL_MANAGEMENT 0x01
|
|
#define USB_CDC_TYPE_ACM 0x02
|
|
/* ... */
|
|
#define USB_CDC_TYPE_UNION 0x06
|
|
/* ... */
|
|
|
|
/* Table 15: Class-Specific Descriptor Header Format */
|
|
struct usb_cdc_header_descriptor {
|
|
u8 bFunctionLength;
|
|
u8 bDescriptorType;
|
|
u8 bDescriptorSubtype;
|
|
u16 bcdCDC;
|
|
} __attribute__((packed));
|
|
|
|
/* Table 16: Union Interface Functional Descriptor */
|
|
struct usb_cdc_union_descriptor {
|
|
u8 bFunctionLength;
|
|
u8 bDescriptorType;
|
|
u8 bDescriptorSubtype;
|
|
u8 bControlInterface;
|
|
u8 bSubordinateInterface0;
|
|
/* ... */
|
|
} __attribute__((packed));
|
|
|
|
|
|
/* Definitions for Abstract Control Model devices from:
|
|
* "Universal Serial Bus Communications Class Subclass Specification for
|
|
* PSTN Devices"
|
|
*/
|
|
|
|
/* Table 3: Call Management Functional Descriptor */
|
|
struct usb_cdc_call_management_descriptor {
|
|
u8 bFunctionLength;
|
|
u8 bDescriptorType;
|
|
u8 bDescriptorSubtype;
|
|
u8 bmCapabilities;
|
|
u8 bDataInterface;
|
|
} __attribute__((packed));
|
|
|
|
/* Table 4: Abstract Control Management Functional Descriptor */
|
|
struct usb_cdc_acm_descriptor {
|
|
u8 bFunctionLength;
|
|
u8 bDescriptorType;
|
|
u8 bDescriptorSubtype;
|
|
u8 bmCapabilities;
|
|
} __attribute__((packed));
|
|
|
|
/* Table 13: Class-Specific Request Codes for PSTN subclasses */
|
|
/* ... */
|
|
#define USB_CDC_REQ_SET_LINE_CODING 0x20
|
|
/* ... */
|
|
#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
|
|
/* ... */
|
|
|
|
/* Table 17: Line Coding Structure */
|
|
struct usb_cdc_line_coding {
|
|
u32 dwDTERate;
|
|
u8 bCharFormat;
|
|
u8 bParityType;
|
|
u8 bDataBits;
|
|
} __attribute__((packed));
|
|
|
|
/* Table 30: Class-Specific Notification Codes for PSTN subclasses */
|
|
/* ... */
|
|
#define USB_CDC_NOTIFY_SERIAL_STATE 0x20
|
|
/* ... */
|
|
|
|
/* Notification Structure */
|
|
struct usb_cdc_notification {
|
|
u8 bmRequestType;
|
|
u8 bNotification;
|
|
u16 wValue;
|
|
u16 wIndex;
|
|
u16 wLength;
|
|
} __attribute__((packed));
|
|
|
|
#endif
|