cdc.h

[詳解]

/*----------------------------------------------------------------------------
 *      U S B  -  K e r n e l
 *----------------------------------------------------------------------------
 *      Name:    CDC.h
 *      Purpose: USB Communication Device Class Definitions 
 *      Version: V1.00
 *----------------------------------------------------------------------------
 *      This software is supplied "AS IS" without any warranties, express,
 *      implied or statutory, including but not limited to the implied
 *      warranties of fitness for purpose, satisfactory quality and
 *      noninfringement. Keil extends you a royalty-free right to reproduce
 *      and distribute executable files created using this software for use
 *      on NXP Semiconductors LPC microcontroller devices only. Nothing else 
 *      gives you the right to use this software.
 *
 * Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
 *---------------------------------------------------------------------------*/

#ifndef __CDC_H
#define __CDC_H

/*----------------------------------------------------------------------------
 *      Definitions  based on usbcdc11.pdf (www.usb.org)
 *---------------------------------------------------------------------------*/
// Communication device class specification version 1.10
#define CDC_V1_10                               0x0110

// Communication interface class code
// (usbcdc11.pdf, 4.2, Table 15)
#define CDC_COMMUNICATION_INTERFACE_CLASS       0x02

// Communication interface class subclass codes
// (usbcdc11.pdf, 4.3, Table 16)
#define CDC_DIRECT_LINE_CONTROL_MODEL           0x01
#define CDC_ABSTRACT_CONTROL_MODEL              0x02
#define CDC_TELEPHONE_CONTROL_MODEL             0x03
#define CDC_MULTI_CHANNEL_CONTROL_MODEL         0x04
#define CDC_CAPI_CONTROL_MODEL                  0x05
#define CDC_ETHERNET_NETWORKING_CONTROL_MODEL   0x06
#define CDC_ATM_NETWORKING_CONTROL_MODEL        0x07

// Communication interface class control protocol codes
// (usbcdc11.pdf, 4.4, Table 17)
#define CDC_PROTOCOL_COMMON_AT_COMMANDS         0x01

// Data interface class code
// (usbcdc11.pdf, 4.5, Table 18)
#define CDC_DATA_INTERFACE_CLASS                0x0A

// Data interface class protocol codes
// (usbcdc11.pdf, 4.7, Table 19)
#define CDC_PROTOCOL_ISDN_BRI                   0x30
#define CDC_PROTOCOL_HDLC                       0x31
#define CDC_PROTOCOL_TRANSPARENT                0x32
#define CDC_PROTOCOL_Q921_MANAGEMENT            0x50
#define CDC_PROTOCOL_Q921_DATA_LINK             0x51
#define CDC_PROTOCOL_Q921_MULTIPLEXOR           0x52
#define CDC_PROTOCOL_V42                        0x90
#define CDC_PROTOCOL_EURO_ISDN                  0x91
#define CDC_PROTOCOL_V24_RATE_ADAPTATION        0x92
#define CDC_PROTOCOL_CAPI                       0x93
#define CDC_PROTOCOL_HOST_BASED_DRIVER          0xFD
#define CDC_PROTOCOL_DESCRIBED_IN_PUFD          0xFE

// Type values for bDescriptorType field of functional descriptors
// (usbcdc11.pdf, 5.2.3, Table 24)
#define CDC_CS_INTERFACE                        0x24
#define CDC_CS_ENDPOINT                         0x25

// Type values for bDescriptorSubtype field of functional descriptors
// (usbcdc11.pdf, 5.2.3, Table 25)
#define CDC_HEADER                              0x00
#define CDC_CALL_MANAGEMENT                     0x01
#define CDC_ABSTRACT_CONTROL_MANAGEMENT         0x02
#define CDC_DIRECT_LINE_MANAGEMENT              0x03
#define CDC_TELEPHONE_RINGER                    0x04
#define CDC_REPORTING_CAPABILITIES              0x05
#define CDC_UNION                               0x06
#define CDC_COUNTRY_SELECTION                   0x07
#define CDC_TELEPHONE_OPERATIONAL_MODES         0x08
#define CDC_USB_TERMINAL                        0x09
#define CDC_NETWORK_CHANNEL                     0x0A
#define CDC_PROTOCOL_UNIT                       0x0B
#define CDC_EXTENSION_UNIT                      0x0C
#define CDC_MULTI_CHANNEL_MANAGEMENT            0x0D
#define CDC_CAPI_CONTROL_MANAGEMENT             0x0E
#define CDC_ETHERNET_NETWORKING                 0x0F
#define CDC_ATM_NETWORKING                      0x10

// CDC class-specific request codes
// (usbcdc11.pdf, 6.2, Table 46)
// see Table 45 for info about the specific requests.
#define CDC_SEND_ENCAPSULATED_COMMAND           0x00
#define CDC_GET_ENCAPSULATED_RESPONSE           0x01
#define CDC_SET_COMM_FEATURE                    0x02
#define CDC_GET_COMM_FEATURE                    0x03
#define CDC_CLEAR_COMM_FEATURE                  0x04
#define CDC_SET_AUX_LINE_STATE                  0x10
#define CDC_SET_HOOK_STATE                      0x11
#define CDC_PULSE_SETUP                         0x12
#define CDC_SEND_PULSE                          0x13
#define CDC_SET_PULSE_TIME                      0x14
#define CDC_RING_AUX_JACK                       0x15
#define CDC_SET_LINE_CODING                     0x20
#define CDC_GET_LINE_CODING                     0x21
#define CDC_SET_CONTROL_LINE_STATE              0x22
#define CDC_SEND_BREAK                          0x23
#define CDC_SET_RINGER_PARMS                    0x30
#define CDC_GET_RINGER_PARMS                    0x31
#define CDC_SET_OPERATION_PARMS                 0x32
#define CDC_GET_OPERATION_PARMS                 0x33
#define CDC_SET_LINE_PARMS                      0x34
#define CDC_GET_LINE_PARMS                      0x35
#define CDC_DIAL_DIGITS                         0x36
#define CDC_SET_UNIT_PARAMETER                  0x37
#define CDC_GET_UNIT_PARAMETER                  0x38
#define CDC_CLEAR_UNIT_PARAMETER                0x39
#define CDC_GET_PROFILE                         0x3A
#define CDC_SET_ETHERNET_MULTICAST_FILTERS      0x40
#define CDC_SET_ETHERNET_PMP_FILTER             0x41
#define CDC_GET_ETHERNET_PMP_FILTER             0x42
#define CDC_SET_ETHERNET_PACKET_FILTER          0x43
#define CDC_GET_ETHERNET_STATISTIC              0x44
#define CDC_SET_ATM_DATA_FORMAT                 0x50
#define CDC_GET_ATM_DEVICE_STATISTICS           0x51
#define CDC_SET_ATM_DEFAULT_VC                  0x52
#define CDC_GET_ATM_VC_STATISTICS               0x53

// Communication feature selector codes
// (usbcdc11.pdf, 6.2.2..6.2.4, Table 47)
#define CDC_ABSTRACT_STATE                      0x01
#define CDC_COUNTRY_SETTING                     0x02

// Feature Status returned for ABSTRACT_STATE Selector
// (usbcdc11.pdf, 6.2.3, Table 48)
#define CDC_IDLE_SETTING                        (1 << 0)
#define CDC_DATA_MULTPLEXED_STATE               (1 << 1)


// Control signal bitmap values for the SetControlLineState request
// (usbcdc11.pdf, 6.2.14, Table 51)
#define CDC_DTE_PRESENT                         (1 << 0)
#define CDC_ACTIVATE_CARRIER                    (1 << 1)

// CDC class-specific notification codes
// (usbcdc11.pdf, 6.3, Table 68)
// see Table 67 for Info about class-specific notifications
#define CDC_NOTIFICATION_NETWORK_CONNECTION     0x00
#define CDC_RESPONSE_AVAILABLE                  0x01
#define CDC_AUX_JACK_HOOK_STATE                 0x08
#define CDC_RING_DETECT                         0x09
#define CDC_NOTIFICATION_SERIAL_STATE           0x20
#define CDC_CALL_STATE_CHANGE                   0x28
#define CDC_LINE_STATE_CHANGE                   0x29
#define CDC_CONNECTION_SPEED_CHANGE             0x2A

// UART state bitmap values (Serial state notification).
// (usbcdc11.pdf, 6.3.5, Table 69)
#define CDC_SERIAL_STATE_OVERRUN                (1 << 6)  // receive data overrun error has occurred
#define CDC_SERIAL_STATE_PARITY                 (1 << 5)  // parity error has occurred
#define CDC_SERIAL_STATE_FRAMING                (1 << 4)  // framing error has occurred
#define CDC_SERIAL_STATE_RING                   (1 << 3)  // state of ring signal detection
#define CDC_SERIAL_STATE_BREAK                  (1 << 2)  // state of break detection
#define CDC_SERIAL_STATE_TX_CARRIER             (1 << 1)  // state of transmission carrier
#define CDC_SERIAL_STATE_RX_CARRIER             (1 << 0)  // state of receiver carrier


/*----------------------------------------------------------------------------
 *      Structures  based on usbcdc11.pdf (www.usb.org)
 *---------------------------------------------------------------------------*/

// Header functional descriptor
// (usbcdc11.pdf, 5.2.3.1)
// This header must precede any list of class-specific descriptors.
typedef struct _CDC_HEADER_DESCRIPTOR{
  uint8_t bFunctionLength;                     // size of this descriptor in bytes
  uint8_t bDescriptorType;                     // CS_INTERFACE descriptor type
  uint8_t bDescriptorSubtype;                  // Header functional descriptor subtype
  uint16_t bcdCDC;                              // USB CDC specification release version
} __attribute__((packed)) CDC_HEADER_DESCRIPTOR;

//Call management functional descriptor
// (usbcdc11.pdf, 5.2.3.2)
// Describes the processing of calls for the communication class interface.
typedef struct _CDC_CALL_MANAGEMENT_DESCRIPTOR {
  uint8_t bFunctionLength;                     // size of this descriptor in bytes
  uint8_t bDescriptorType;                     // CS_INTERFACE descriptor type
  uint8_t bDescriptorSubtype;                  // call management functional descriptor subtype
  uint8_t bmCapabilities;                      // capabilities that this configuration supports
  uint8_t bDataInterface;                      // interface number of the data class interface used for call management (optional)
} __attribute__((packed)) CDC_CALL_MANAGEMENT_DESCRIPTOR;

// Abstract control management functional descriptor
// (usbcdc11.pdf, 5.2.3.3)
// Describes the command supported by the communication interface class with the Abstract Control Model subclass code.
typedef struct _CDC_ABSTRACT_CONTROL_MANAGEMENT_DESCRIPTOR {
  uint8_t bFunctionLength;                     // size of this descriptor in bytes
  uint8_t bDescriptorType;                     // CS_INTERFACE descriptor type
  uint8_t bDescriptorSubtype;                  // abstract control management functional descriptor subtype
  uint8_t bmCapabilities;                      // capabilities supported by this configuration
} __attribute__((packed)) CDC_ABSTRACT_CONTROL_MANAGEMENT_DESCRIPTOR;

// Union functional descriptors
// (usbcdc11.pdf, 5.2.3.8)
// Describes the relationship between a group of interfaces that can be considered to form a functional unit.
typedef struct _CDC_UNION_DESCRIPTOR {
  uint8_t bFunctionLength;                     // size of this descriptor in bytes
  uint8_t bDescriptorType;                     // CS_INTERFACE descriptor type
  uint8_t bDescriptorSubtype;                  // union functional descriptor subtype
  uint8_t bMasterInterface;                    // interface number designated as master
} __attribute__((packed)) CDC_UNION_DESCRIPTOR;

// Union functional descriptors with one slave interface
// (usbcdc11.pdf, 5.2.3.8)
typedef struct _CDC_UNION_1SLAVE_DESCRIPTOR {
  CDC_UNION_DESCRIPTOR sUnion;              // Union functional descriptor
  uint8_t                 bSlaveInterfaces[1]; // Slave interface 0
} __attribute__((packed)) CDC_UNION_1SLAVE_DESCRIPTOR;

//  Line coding structure
//  Format of the data returned when a GetLineCoding request is received
// (usbcdc11.pdf, 6.2.13)
typedef struct _CDC_LINE_CODING {
  uint32_t dwDTERate;                          // Data terminal rate in bits per second
  uint8_t  bCharFormat;                        // Number of stop bits
  uint8_t  bParityType;                        // Parity bit type
  uint8_t  bDataBits;                          // Number of data bits
} __attribute__((packed)) CDC_LINE_CODING;

// Notification header
// Data sent on the notification endpoint must follow this header.
// see  USB_SETUP_PACKET in file usb.h
typedef USB_SETUP_PACKET CDC_NOTIFICATION_HEADER;

#endif /* __CDC_H */