/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. This software may be distributed and modified under the terms of the GNU General Public License version 2 (GPL2) as published by the Free Software Foundation and appearing in the file GPL2.TXT included in the packaging of this file. Please note that GPL2 Section 2[b] requires that all works based on this software must also be made publicly available under the terms of the GPL2 ("Copyleft"). Contact information ------------------- Circuits At Home, LTD Web : http://www.circuitsathome.com e-mail : support@circuitsathome.com */ #if !defined(_usb_h_) || defined(USBCORE_H) #error "Never include UsbCore.h directly; include Usb.h instead" #else #define USBCORE_H // Not used anymore? If anyone uses this, please let us know so that this may be // moved to the proper place, settings.h. //#define USB_METHODS_INLINE /* shield pins. First parameter - SS pin, second parameter - INT pin */ #ifdef BOARD_BLACK_WIDDOW typedef MAX3421e MAX3421E; // Black Widow #elif defined(CORE_TEENSY) && (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)) #if EXT_RAM typedef MAX3421e MAX3421E; // Teensy++ 2.0 with XMEM2 #else typedef MAX3421e MAX3421E; // Teensy++ 1.0 and 2.0 #endif #elif defined(BOARD_MEGA_ADK) typedef MAX3421e MAX3421E; // Arduino Mega ADK #elif defined(ARDUINO_AVR_BALANDUINO) typedef MAX3421e MAX3421E; // Balanduino #elif defined(__ARDUINO_X86__) && PLATFORM_ID == 0x06 typedef MAX3421e MAX3421E; // The Intel Galileo supports much faster read and write speed at pin 2 and 3 #else typedef MAX3421e MAX3421E; // Official Arduinos (UNO, Duemilanove, Mega, 2560, Leonardo, Due etc.), Intel Edison, Intel Galileo 2 or Teensy 2.0 and 3.0 #endif /* Common setup data constant combinations */ #define bmREQ_GET_DESCR USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_STANDARD|USB_SETUP_RECIPIENT_DEVICE //get descriptor request type #define bmREQ_SET USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_STANDARD|USB_SETUP_RECIPIENT_DEVICE //set request type for all but 'set feature' and 'set interface' #define bmREQ_CL_GET_INTF USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE //get interface request type // D7 data transfer direction (0 - host-to-device, 1 - device-to-host) // D6-5 Type (0- standard, 1 - class, 2 - vendor, 3 - reserved) // D4-0 Recipient (0 - device, 1 - interface, 2 - endpoint, 3 - other, 4..31 - reserved) // USB Device Classes #define USB_CLASS_USE_CLASS_INFO 0x00 // Use Class Info in the Interface Descriptors #define USB_CLASS_AUDIO 0x01 // Audio #define USB_CLASS_COM_AND_CDC_CTRL 0x02 // Communications and CDC Control #define USB_CLASS_HID 0x03 // HID #define USB_CLASS_PHYSICAL 0x05 // Physical #define USB_CLASS_IMAGE 0x06 // Image #define USB_CLASS_PRINTER 0x07 // Printer #define USB_CLASS_MASS_STORAGE 0x08 // Mass Storage #define USB_CLASS_HUB 0x09 // Hub #define USB_CLASS_CDC_DATA 0x0a // CDC-Data #define USB_CLASS_SMART_CARD 0x0b // Smart-Card #define USB_CLASS_CONTENT_SECURITY 0x0d // Content Security #define USB_CLASS_VIDEO 0x0e // Video #define USB_CLASS_PERSONAL_HEALTH 0x0f // Personal Healthcare #define USB_CLASS_DIAGNOSTIC_DEVICE 0xdc // Diagnostic Device #define USB_CLASS_WIRELESS_CTRL 0xe0 // Wireless Controller #define USB_CLASS_MISC 0xef // Miscellaneous #define USB_CLASS_APP_SPECIFIC 0xfe // Application Specific #define USB_CLASS_VENDOR_SPECIFIC 0xff // Vendor Specific // Additional Error Codes #define USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED 0xD1 #define USB_DEV_CONFIG_ERROR_DEVICE_INIT_INCOMPLETE 0xD2 #define USB_ERROR_UNABLE_TO_REGISTER_DEVICE_CLASS 0xD3 #define USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL 0xD4 #define USB_ERROR_HUB_ADDRESS_OVERFLOW 0xD5 #define USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL 0xD6 #define USB_ERROR_EPINFO_IS_NULL 0xD7 #define USB_ERROR_INVALID_ARGUMENT 0xD8 #define USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE 0xD9 #define USB_ERROR_INVALID_MAX_PKT_SIZE 0xDA #define USB_ERROR_EP_NOT_FOUND_IN_TBL 0xDB #define USB_ERROR_CONFIG_REQUIRES_ADDITIONAL_RESET 0xE0 #define USB_ERROR_FailGetDevDescr 0xE1 #define USB_ERROR_FailSetDevTblEntry 0xE2 #define USB_ERROR_FailGetConfDescr 0xE3 #define USB_ERROR_TRANSFER_TIMEOUT 0xFF #define USB_XFER_TIMEOUT 5000 // (5000) USB transfer timeout in milliseconds, per section 9.2.6.1 of USB 2.0 spec //#define USB_NAK_LIMIT 32000 // NAK limit for a transfer. 0 means NAKs are not counted #define USB_RETRY_LIMIT 3 // 3 retry limit for a transfer #define USB_SETTLE_DELAY 200 // settle delay in milliseconds #define USB_NUMDEVICES 16 //number of USB devices //#define HUB_MAX_HUBS 7 // maximum number of hubs that can be attached to the host controller #define HUB_PORT_RESET_DELAY 20 // hub port reset delay 10 ms recomended, can be up to 20 ms /* USB state machine states */ #define USB_STATE_MASK 0xf0 #define USB_STATE_DETACHED 0x10 #define USB_DETACHED_SUBSTATE_INITIALIZE 0x11 #define USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE 0x12 #define USB_DETACHED_SUBSTATE_ILLEGAL 0x13 #define USB_ATTACHED_SUBSTATE_SETTLE 0x20 #define USB_ATTACHED_SUBSTATE_RESET_DEVICE 0x30 #define USB_ATTACHED_SUBSTATE_WAIT_RESET_COMPLETE 0x40 #define USB_ATTACHED_SUBSTATE_WAIT_SOF 0x50 #define USB_ATTACHED_SUBSTATE_WAIT_RESET 0x51 #define USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE 0x60 #define USB_STATE_ADDRESSING 0x70 #define USB_STATE_CONFIGURING 0x80 #define USB_STATE_RUNNING 0x90 #define USB_STATE_ERROR 0xa0 class USBDeviceConfig { public: virtual uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed) { return 0; } virtual uint8_t ConfigureDevice(uint8_t parent, uint8_t port, bool lowspeed) { return 0; } virtual uint8_t Release() { return 0; } virtual uint8_t Poll() { return 0; } virtual uint8_t GetAddress() { return 0; } virtual void ResetHubPort(uint8_t port) { return; } // Note used for hubs only! virtual bool VIDPIDOK(uint16_t vid, uint16_t pid) { return false; } virtual bool DEVCLASSOK(uint8_t klass) { return false; } virtual bool DEVSUBCLASSOK(uint8_t subklass) { return true; } }; /* USB Setup Packet Structure */ typedef struct { union { // offset description uint8_t bmRequestType; // 0 Bit-map of request type struct { uint8_t recipient : 5; // Recipient of the request uint8_t type : 2; // Type of request uint8_t direction : 1; // Direction of data X-fer } __attribute__((packed)); } ReqType_u; uint8_t bRequest; // 1 Request union { uint16_t wValue; // 2 Depends on bRequest struct { uint8_t wValueLo; uint8_t wValueHi; } __attribute__((packed)); } wVal_u; uint16_t wIndex; // 4 Depends on bRequest uint16_t wLength; // 6 Depends on bRequest } __attribute__((packed)) SETUP_PKT, *PSETUP_PKT; // Base class for incoming data parser class USBReadParser { public: virtual void Parse(const uint16_t len, const uint8_t *pbuf, const uint16_t &offset) = 0; }; class USB : public MAX3421E { AddressPoolImpl addrPool; USBDeviceConfig* devConfig[USB_NUMDEVICES]; uint8_t bmHubPre; public: USB(void); void SetHubPreMask() { bmHubPre |= bmHUBPRE; }; void ResetHubPreMask() { bmHubPre &= (~bmHUBPRE); }; AddressPool& GetAddressPool() { return (AddressPool&)addrPool; }; uint8_t RegisterDeviceClass(USBDeviceConfig *pdev) { for(uint8_t i = 0; i < USB_NUMDEVICES; i++) { if(!devConfig[i]) { devConfig[i] = pdev; return 0; } } return USB_ERROR_UNABLE_TO_REGISTER_DEVICE_CLASS; }; void ForEachUsbDevice(UsbDeviceHandleFunc pfunc) { addrPool.ForEachUsbDevice(pfunc); }; uint8_t getUsbTaskState(void); void setUsbTaskState(uint8_t state); EpInfo* getEpInfoEntry(uint8_t addr, uint8_t ep); uint8_t setEpInfoEntry(uint8_t addr, uint8_t epcount, EpInfo* eprecord_ptr); /* Control requests */ uint8_t getDevDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t* dataptr); uint8_t getConfDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t conf, uint8_t* dataptr); uint8_t getConfDescr(uint8_t addr, uint8_t ep, uint8_t conf, USBReadParser *p); uint8_t getStrDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t index, uint16_t langid, uint8_t* dataptr); uint8_t setAddr(uint8_t oldaddr, uint8_t ep, uint8_t newaddr); uint8_t setConf(uint8_t addr, uint8_t ep, uint8_t conf_value); /**/ uint8_t ctrlData(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t* dataptr, bool direction); uint8_t ctrlStatus(uint8_t ep, bool direction, uint16_t nak_limit); uint8_t inTransfer(uint8_t addr, uint8_t ep, uint16_t *nbytesptr, uint8_t* data); uint8_t outTransfer(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t* data); uint8_t dispatchPkt(uint8_t token, uint8_t ep, uint16_t nak_limit); void Task(void); uint8_t DefaultAddressing(uint8_t parent, uint8_t port, bool lowspeed); uint8_t Configuring(uint8_t parent, uint8_t port, bool lowspeed); uint8_t ReleaseDevice(uint8_t addr); uint8_t ctrlReq(uint8_t addr, uint8_t ep, uint8_t bmReqType, uint8_t bRequest, uint8_t wValLo, uint8_t wValHi, uint16_t wInd, uint16_t total, uint16_t nbytes, uint8_t* dataptr, USBReadParser *p); private: void init(); uint8_t SetAddress(uint8_t addr, uint8_t ep, EpInfo **ppep, uint16_t *nak_limit); uint8_t OutTransfer(EpInfo *pep, uint16_t nak_limit, uint16_t nbytes, uint8_t *data); uint8_t InTransfer(EpInfo *pep, uint16_t nak_limit, uint16_t *nbytesptr, uint8_t *data); uint8_t AttemptConfig(uint8_t driver, uint8_t parent, uint8_t port, bool lowspeed); }; #if 0 //defined(USB_METHODS_INLINE) //get device descriptor inline uint8_t USB::getDevDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t* dataptr) { return ( ctrlReq(addr, ep, bmREQ_GET_DESCR, USB_REQUEST_GET_DESCRIPTOR, 0x00, USB_DESCRIPTOR_DEVICE, 0x0000, nbytes, dataptr)); } //get configuration descriptor inline uint8_t USB::getConfDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t conf, uint8_t* dataptr) { return ( ctrlReq(addr, ep, bmREQ_GET_DESCR, USB_REQUEST_GET_DESCRIPTOR, conf, USB_DESCRIPTOR_CONFIGURATION, 0x0000, nbytes, dataptr)); } //get string descriptor inline uint8_t USB::getStrDescr(uint8_t addr, uint8_t ep, uint16_t nuint8_ts, uint8_t index, uint16_t langid, uint8_t* dataptr) { return ( ctrlReq(addr, ep, bmREQ_GET_DESCR, USB_REQUEST_GET_DESCRIPTOR, index, USB_DESCRIPTOR_STRING, langid, nuint8_ts, dataptr)); } //set address inline uint8_t USB::setAddr(uint8_t oldaddr, uint8_t ep, uint8_t newaddr) { return ( ctrlReq(oldaddr, ep, bmREQ_SET, USB_REQUEST_SET_ADDRESS, newaddr, 0x00, 0x0000, 0x0000, NULL)); } //set configuration inline uint8_t USB::setConf(uint8_t addr, uint8_t ep, uint8_t conf_value) { return ( ctrlReq(addr, ep, bmREQ_SET, USB_REQUEST_SET_CONFIGURATION, conf_value, 0x00, 0x0000, 0x0000, NULL)); } #endif // defined(USB_METHODS_INLINE) #endif /* USBCORE_H */