253 lines
9.3 KiB
C
253 lines
9.3 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(__CDCACM_H__)
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#define __CDCACM_H__
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#include "Usb.h"
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#define bmREQ_CDCOUT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
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#define bmREQ_CDCIN USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
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// CDC Subclass Constants
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#define CDC_SUBCLASS_DLCM 0x01 // Direct Line Control Model
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#define CDC_SUBCLASS_ACM 0x02 // Abstract Control Model
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#define CDC_SUBCLASS_TCM 0x03 // Telephone Control Model
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#define CDC_SUBCLASS_MCCM 0x04 // Multi Channel Control Model
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#define CDC_SUBCLASS_CAPI 0x05 // CAPI Control Model
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#define CDC_SUBCLASS_ETHERNET 0x06 // Ethernet Network Control Model
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#define CDC_SUBCLASS_ATM 0x07 // ATM Network Control Model
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#define CDC_SUBCLASS_WIRELESS_HANDSET 0x08 // Wireless Handset Control Model
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#define CDC_SUBCLASS_DEVICE_MANAGEMENT 0x09 // Device Management
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#define CDC_SUBCLASS_MOBILE_DIRECT_LINE 0x0A // Mobile Direct Line Model
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#define CDC_SUBCLASS_OBEX 0x0B // OBEX
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#define CDC_SUBCLASS_ETHERNET_EMU 0x0C // Ethernet Emulation Model
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// Communication Interface Class Control Protocol Codes
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#define CDC_PROTOCOL_ITU_T_V_250 0x01 // AT Commands defined by ITU-T V.250
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#define CDC_PROTOCOL_PCCA_101 0x02 // AT Commands defined by PCCA-101
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#define CDC_PROTOCOL_PCCA_101_O 0x03 // AT Commands defined by PCCA-101 & Annex O
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#define CDC_PROTOCOL_GSM_7_07 0x04 // AT Commands defined by GSM 7.07
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#define CDC_PROTOCOL_3GPP_27_07 0x05 // AT Commands defined by 3GPP 27.007
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#define CDC_PROTOCOL_C_S0017_0 0x06 // AT Commands defined by TIA for CDMA
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#define CDC_PROTOCOL_USB_EEM 0x07 // Ethernet Emulation Model
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// CDC Commands defined by CDC 1.2
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#define CDC_SEND_ENCAPSULATED_COMMAND 0x00
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#define CDC_GET_ENCAPSULATED_RESPONSE 0x01
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// CDC Commands defined by PSTN 1.2
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#define CDC_SET_COMM_FEATURE 0x02
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#define CDC_GET_COMM_FEATURE 0x03
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#define CDC_CLEAR_COMM_FEATURE 0x04
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#define CDC_SET_AUX_LINE_STATE 0x10
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#define CDC_SET_HOOK_STATE 0x11
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#define CDC_PULSE_SETUP 0x12
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#define CDC_SEND_PULSE 0x13
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#define CDC_SET_PULSE_TIME 0x14
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#define CDC_RING_AUX_JACK 0x15
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#define CDC_SET_LINE_CODING 0x20
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#define CDC_GET_LINE_CODING 0x21
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#define CDC_SET_CONTROL_LINE_STATE 0x22
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#define CDC_SEND_BREAK 0x23
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#define CDC_SET_RINGER_PARMS 0x30
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#define CDC_GET_RINGER_PARMS 0x31
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#define CDC_SET_OPERATION_PARMS 0x32
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#define CDC_GET_OPERATION_PARMS 0x33
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#define CDC_SET_LINE_PARMS 0x34
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#define CDC_GET_LINE_PARMS 0x35
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#define CDC_DIAL_DIGITS 0x36
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//Class-Specific Notification Codes
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#define NETWORK_CONNECTION 0x00
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#define RESPONSE_AVAILABLE 0x01
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#define AUX_JACK_HOOK_STATE 0x08
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#define RING_DETECT 0x09
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#define SERIAL_STATE 0x20
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#define CALL_STATE_CHANGE 0x28
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#define LINE_STATE_CHANGE 0x29
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#define CONNECTION_SPEED_CHANGE 0x2a
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// CDC Functional Descriptor Structures
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typedef struct {
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uint8_t bFunctionLength;
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uint8_t bDescriptorType;
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uint8_t bDescriptorSubtype;
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uint8_t bmCapabilities;
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uint8_t bDataInterface;
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} CALL_MGMNT_FUNC_DESCR;
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typedef struct {
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uint8_t bFunctionLength;
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uint8_t bDescriptorType;
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uint8_t bDescriptorSubtype;
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uint8_t bmCapabilities;
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} ACM_FUNC_DESCR, DLM_FUNC_DESCR, TEL_OPER_MODES_FUNC_DESCR,
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TEL_CALL_STATE_REP_CPBL_FUNC_DESCR;
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typedef struct {
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uint8_t bFunctionLength;
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uint8_t bDescriptorType;
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uint8_t bDescriptorSubtype;
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uint8_t bRingerVolSteps;
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uint8_t bNumRingerPatterns;
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} TEL_RINGER_FUNC_DESCR;
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typedef struct {
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uint32_t dwDTERate; // Data Terminal Rate in bits per second
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uint8_t bCharFormat; // 0 - 1 stop bit, 1 - 1.5 stop bits, 2 - 2 stop bits
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uint8_t bParityType; // 0 - None, 1 - Odd, 2 - Even, 3 - Mark, 4 - Space
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uint8_t bDataBits; // Data bits (5, 6, 7, 8 or 16)
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} LINE_CODING;
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typedef struct {
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uint8_t bmRequestType; // 0xa1 for class-specific notifications
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uint8_t bNotification;
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uint16_t wValue;
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uint16_t wIndex;
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uint16_t wLength;
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uint16_t bmState; //UART state bitmap for SERIAL_STATE, other notifications variable length
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} CLASS_NOTIFICATION;
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class ACM;
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class CDCAsyncOper {
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public:
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virtual uint8_t OnInit(ACM *pacm) {
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return 0;
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};
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//virtual void OnDataRcvd(ACM *pacm, uint8_t nbytes, uint8_t *dataptr) = 0;
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//virtual void OnDisconnected(ACM *pacm) = 0;
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};
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/**
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* This structure is used to report the extended capabilities of the connected device.
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* It is also used to report the current status.
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* Regular CDC-ACM reports all as false.
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*/
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typedef struct {
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union {
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uint8_t tty;
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struct {
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bool enhanced : 1; // Do we have the ability to set/clear any features?
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// Status and 8th bit in data stream.
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// Presence only indicates feature is available, but this isn't used for CDC-ACM.
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bool wide : 1;
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bool autoflow_RTS : 1; // Has autoflow on RTS/CTS
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bool autoflow_DSR : 1; // Has autoflow on DTR/DSR
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bool autoflow_XON : 1; // Has autoflow XON/XOFF
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bool half_duplex : 1; // Has half-duplex capability.
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} __attribute__((packed));
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};
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} tty_features;
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#define ACM_MAX_ENDPOINTS 4
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class ACM : public USBDeviceConfig, public UsbConfigXtracter {
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protected:
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static const uint8_t epDataInIndex; // DataIn endpoint index
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static const uint8_t epDataOutIndex; // DataOUT endpoint index
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static const uint8_t epInterruptInIndex; // InterruptIN endpoint index
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USB *pUsb;
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CDCAsyncOper *pAsync;
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uint8_t bAddress;
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uint8_t bConfNum; // configuration number
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uint8_t bControlIface; // Control interface value
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uint8_t bDataIface; // Data interface value
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uint8_t bNumEP; // total number of EP in the configuration
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uint32_t qNextPollTime; // next poll time
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volatile bool bPollEnable; // poll enable flag
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volatile bool ready; //device ready indicator
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tty_features _enhanced_status; // current status
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EpInfo epInfo[ACM_MAX_ENDPOINTS];
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void PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr);
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public:
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ACM(USB *pusb, CDCAsyncOper *pasync);
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uint8_t SetCommFeature(uint16_t fid, uint8_t nbytes, uint8_t *dataptr);
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uint8_t GetCommFeature(uint16_t fid, uint8_t nbytes, uint8_t *dataptr);
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uint8_t ClearCommFeature(uint16_t fid);
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uint8_t SetLineCoding(const LINE_CODING *dataptr);
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uint8_t GetLineCoding(LINE_CODING *dataptr);
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uint8_t SetControlLineState(uint8_t state);
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uint8_t SendBreak(uint16_t duration);
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uint8_t GetNotif(uint16_t *bytes_rcvd, uint8_t *dataptr);
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// Methods for receiving and sending data
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uint8_t RcvData(uint16_t *nbytesptr, uint8_t *dataptr);
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uint8_t SndData(uint16_t nbytes, uint8_t *dataptr);
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// USBDeviceConfig implementation
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uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
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uint8_t Release();
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uint8_t Poll();
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bool available(void) {
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return false;
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};
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virtual uint8_t GetAddress() {
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return bAddress;
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};
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virtual bool isReady() {
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return ready;
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};
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virtual tty_features enhanced_status(void) {
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return _enhanced_status;
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};
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virtual tty_features enhanced_features(void) {
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tty_features rv;
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rv.enhanced = false;
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rv.autoflow_RTS = false;
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rv.autoflow_DSR = false;
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rv.autoflow_XON = false;
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rv.half_duplex = false;
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rv.wide = false;
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return rv;
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};
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virtual void autoflowRTS(bool s) {
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};
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virtual void autoflowDSR(bool s) {
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};
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virtual void autoflowXON(bool s) {
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};
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virtual void half_duplex(bool s) {
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};
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virtual void wide(bool s) {
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};
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// UsbConfigXtracter implementation
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void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
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};
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#endif // __CDCACM_H__
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