diff options
Diffstat (limited to 'tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/SPP.h')
| m--------- | tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 | 0 | ||||
| -rw-r--r-- | tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/SPP.h | 225 |
2 files changed, 225 insertions, 0 deletions
diff --git a/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0 deleted file mode 160000 -Subproject 7c2e6c1bcdcc22cfdbd82edd9d8fc4c4276ead4 diff --git a/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/SPP.h b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/SPP.h new file mode 100644 index 0000000000..233ac611fd --- /dev/null +++ b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/SPP.h @@ -0,0 +1,225 @@ +/* Copyright (C) 2012 Kristian Lauszus, TKJ Electronics. 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 + ------------------- + + Kristian Lauszus, TKJ Electronics + Web : http://www.tkjelectronics.com + e-mail : kristianl@tkjelectronics.com + */ + +#ifndef _spp_h_ +#define _spp_h_ + +#include "BTD.h" + +/* Used for SDP */ +#define SDP_SERVICE_SEARCH_ATTRIBUTE_REQUEST_PDU 0x06 // See the RFCOMM specs +#define SDP_SERVICE_SEARCH_ATTRIBUTE_RESPONSE_PDU 0x07 // See the RFCOMM specs +#define SERIALPORT_UUID 0x1101 // See http://www.bluetooth.org/Technical/AssignedNumbers/service_discovery.htm +#define L2CAP_UUID 0x0100 + +/* Used for RFCOMM */ +#define RFCOMM_SABM 0x2F +#define RFCOMM_UA 0x63 +#define RFCOMM_UIH 0xEF +//#define RFCOMM_DM 0x0F +#define RFCOMM_DISC 0x43 + +#define extendAddress 0x01 // Always 1 + +// Multiplexer message types +#define BT_RFCOMM_PN_CMD 0x83 +#define BT_RFCOMM_PN_RSP 0x81 +#define BT_RFCOMM_MSC_CMD 0xE3 +#define BT_RFCOMM_MSC_RSP 0xE1 +#define BT_RFCOMM_RPN_CMD 0x93 +#define BT_RFCOMM_RPN_RSP 0x91 +/* +#define BT_RFCOMM_TEST_CMD 0x23 +#define BT_RFCOMM_TEST_RSP 0x21 +#define BT_RFCOMM_FCON_CMD 0xA3 +#define BT_RFCOMM_FCON_RSP 0xA1 +#define BT_RFCOMM_FCOFF_CMD 0x63 +#define BT_RFCOMM_FCOFF_RSP 0x61 +#define BT_RFCOMM_RLS_CMD 0x53 +#define BT_RFCOMM_RLS_RSP 0x51 +#define BT_RFCOMM_NSC_RSP 0x11 + */ + +/** + * This BluetoothService class implements the Serial Port Protocol (SPP). + * It inherits the Arduino Stream class. This allows it to use all the standard Arduino print and stream functions. + */ +class SPP : public BluetoothService, public Stream { +public: + /** + * Constructor for the SPP class. + * @param p Pointer to BTD class instance. + * @param name Set the name to BTD#btdName. If argument is omitted, then "Arduino" will be used. + * @param pin Write the pin to BTD#btdPin. If argument is omitted, then "0000" will be used. + */ + SPP(BTD *p, const char *name = "Arduino", const char *pin = "0000"); + + /** @name BluetoothService implementation */ + /** Used this to disconnect the virtual serial port. */ + void disconnect(); + /**@}*/ + + /** + * Used to provide Boolean tests for the class. + * @return Return true if SPP communication is connected. + */ + operator bool() { + return connected; + } + /** Variable used to indicate if the connection is established. */ + bool connected; + + /** @name Serial port profile (SPP) Print functions */ + /** + * Get number of bytes waiting to be read. + * @return Return the number of bytes ready to be read. + */ + int available(void); + + /** Send out all bytes in the buffer. */ + void flush(void) { + send(); + }; + /** + * Used to read the next value in the buffer without advancing to the next one. + * @return Return the byte. Will return -1 if no bytes are available. + */ + int peek(void); + /** + * Used to read the buffer. + * @return Return the byte. Will return -1 if no bytes are available. + */ + int read(void); + +#if defined(ARDUINO) && ARDUINO >=100 + /** + * Writes the byte to send to a buffer. The message is send when either send() or after Usb.Task() is called. + * @param data The byte to write. + * @return Return the number of bytes written. + */ + size_t write(uint8_t data); + /** + * Writes the bytes to send to a buffer. The message is send when either send() or after Usb.Task() is called. + * @param data The data array to send. + * @param size Size of the data. + * @return Return the number of bytes written. + */ + size_t write(const uint8_t* data, size_t size); + /** Pull in write(const char *str) from Print */ + using Print::write; +#else + /** + * Writes the byte to send to a buffer. The message is send when either send() or after Usb.Task() is called. + * @param data The byte to write. + */ + void write(uint8_t data); + /** + * Writes the bytes to send to a buffer. The message is send when either send() or after Usb.Task() is called. + * @param data The data array to send. + * @param size Size of the data. + */ + void write(const uint8_t* data, size_t size); +#endif + + /** Discard all the bytes in the buffer. */ + void discard(void); + /** + * This will send all the bytes in the buffer. + * This is called whenever Usb.Task() is called, + * but can also be called via this function. + */ + void send(void); + /**@}*/ + +protected: + /** @name BluetoothService implementation */ + /** + * Used to pass acldata to the services. + * @param ACLData Incoming acldata. + */ + void ACLData(uint8_t* ACLData); + /** Used to establish the connection automatically. */ + void Run(); + /** Use this to reset the service. */ + void Reset(); + /** + * Called when a device is successfully initialized. + * Use attachOnInit(void (*funcOnInit)(void)) to call your own function. + * This is useful for instance if you want to set the LEDs in a specific way. + */ + void onInit(); + /**@}*/ + +private: + /* Set true when a channel is created */ + bool SDPConnected; + bool RFCOMMConnected; + + /* Variables used by L2CAP state machines */ + uint8_t l2cap_sdp_state; + uint8_t l2cap_rfcomm_state; + + uint8_t l2capoutbuf[BULK_MAXPKTSIZE]; // General purpose buffer for l2cap out data + uint8_t rfcommbuf[10]; // Buffer for RFCOMM Commands + + /* L2CAP Channels */ + uint8_t sdp_scid[2]; // L2CAP source CID for SDP + uint8_t sdp_dcid[2]; // 0x0050 + uint8_t rfcomm_scid[2]; // L2CAP source CID for RFCOMM + uint8_t rfcomm_dcid[2]; // 0x0051 + + /* RFCOMM Variables */ + uint8_t rfcommChannel; + uint8_t rfcommChannelConnection; // This is the channel the SPP channel will be running at + uint8_t rfcommDirection; + uint8_t rfcommCommandResponse; + uint8_t rfcommChannelType; + uint8_t rfcommPfBit; + + uint32_t timer; + bool waitForLastCommand; + bool creditSent; + + uint8_t rfcommDataBuffer[100]; // Create a 100 sized buffer for incoming data + uint8_t sppOutputBuffer[100]; // Create a 100 sized buffer for outgoing SPP data + uint8_t sppIndex; + uint8_t rfcommAvailable; + + bool firstMessage; // Used to see if it's the first SDP request received + uint8_t bytesRead; // Counter to see when it's time to send more credit + + /* State machines */ + void SDP_task(); // SDP state machine + void RFCOMM_task(); // RFCOMM state machine + + /* SDP Commands */ + void SDP_Command(uint8_t *data, uint8_t nbytes); + void serviceNotSupported(uint8_t transactionIDHigh, uint8_t transactionIDLow); + void serialPortResponse1(uint8_t transactionIDHigh, uint8_t transactionIDLow); + void serialPortResponse2(uint8_t transactionIDHigh, uint8_t transactionIDLow); + void l2capResponse1(uint8_t transactionIDHigh, uint8_t transactionIDLow); + void l2capResponse2(uint8_t transactionIDHigh, uint8_t transactionIDLow); + + /* RFCOMM Commands */ + void RFCOMM_Command(uint8_t *data, uint8_t nbytes); + void sendRfcomm(uint8_t channel, uint8_t direction, uint8_t CR, uint8_t channelType, uint8_t pfBit, uint8_t *data, uint8_t length); + void sendRfcommCredit(uint8_t channel, uint8_t direction, uint8_t CR, uint8_t channelType, uint8_t pfBit, uint8_t credit); + uint8_t calcFcs(uint8_t *data); + bool checkFcs(uint8_t *data, uint8_t fcs); + uint8_t crc(uint8_t *data); +}; +#endif |