/******************************************************************************
*
* Copyright (C) 1999-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* this file contains the PORT API definitions
*
******************************************************************************/
#ifndef PORT_API_H
#define PORT_API_H
#include "bt_target.h"
/*****************************************************************************
** Constants and Types
*****************************************************************************/
/*
** Define port settings structure send from the application in the
** set settings request, or to the application in the set settings indication.
*/
typedef struct
{
#define PORT_BAUD_RATE_2400 0x00
#define PORT_BAUD_RATE_4800 0x01
#define PORT_BAUD_RATE_7200 0x02
#define PORT_BAUD_RATE_9600 0x03
#define PORT_BAUD_RATE_19200 0x04
#define PORT_BAUD_RATE_38400 0x05
#define PORT_BAUD_RATE_57600 0x06
#define PORT_BAUD_RATE_115200 0x07
#define PORT_BAUD_RATE_230400 0x08
UINT8 baud_rate;
#define PORT_5_BITS 0x00
#define PORT_6_BITS 0x01
#define PORT_7_BITS 0x02
#define PORT_8_BITS 0x03
UINT8 byte_size;
#define PORT_ONESTOPBIT 0x00
#define PORT_ONE5STOPBITS 0x01
UINT8 stop_bits;
#define PORT_PARITY_NO 0x00
#define PORT_PARITY_YES 0x01
UINT8 parity;
#define PORT_ODD_PARITY 0x00
#define PORT_EVEN_PARITY 0x01
#define PORT_MARK_PARITY 0x02
#define PORT_SPACE_PARITY 0x03
UINT8 parity_type;
#define PORT_FC_OFF 0x00
#define PORT_FC_XONXOFF_ON_INPUT 0x01
#define PORT_FC_XONXOFF_ON_OUTPUT 0x02
#define PORT_FC_CTS_ON_INPUT 0x04
#define PORT_FC_CTS_ON_OUTPUT 0x08
#define PORT_FC_DSR_ON_INPUT 0x10
#define PORT_FC_DSR_ON_OUTPUT 0x20
UINT8 fc_type;
UINT8 rx_char1;
#define PORT_XON_DC1 0x11
UINT8 xon_char;
#define PORT_XOFF_DC3 0x13
UINT8 xoff_char;
} tPORT_STATE;
/*
** Define the callback function prototypes. Parameters are specific
** to each event and are described bellow
*/
typedef int (tPORT_DATA_CALLBACK) (UINT16 port_handle, void *p_data, UINT16 len);
#define DATA_CO_CALLBACK_TYPE_INCOMING 1
#define DATA_CO_CALLBACK_TYPE_OUTGOING_SIZE 2
#define DATA_CO_CALLBACK_TYPE_OUTGOING 3
typedef int (tPORT_DATA_CO_CALLBACK) (UINT16 port_handle, UINT8* p_buf, UINT16 len, int type);
typedef void (tPORT_CALLBACK) (UINT32 code, UINT16 port_handle);
/*
** Define events that registered application can receive in the callback
*/
#define PORT_EV_RXCHAR 0x00000001 /* Any Character received */
#define PORT_EV_RXFLAG 0x00000002 /* Received certain character */
#define PORT_EV_TXEMPTY 0x00000004 /* Transmitt Queue Empty */
#define PORT_EV_CTS 0x00000008 /* CTS changed state */
#define PORT_EV_DSR 0x00000010 /* DSR changed state */
#define PORT_EV_RLSD 0x00000020 /* RLSD changed state */
#define PORT_EV_BREAK 0x00000040 /* BREAK received */
#define PORT_EV_ERR 0x00000080 /* Line status error occurred */
#define PORT_EV_RING 0x00000100 /* Ring signal detected */
#define PORT_EV_CTSS 0x00000400 /* CTS state */
#define PORT_EV_DSRS 0x00000800 /* DSR state */
#define PORT_EV_RLSDS 0x00001000 /* RLSD state */
#define PORT_EV_OVERRUN 0x00002000 /* receiver buffer overrun */
#define PORT_EV_TXCHAR 0x00004000 /* Any character transmitted */
#define PORT_EV_CONNECTED 0x00000200 /* RFCOMM connection established */
#define PORT_EV_CONNECT_ERR 0x00008000 /* Was not able to establish connection */
/* or disconnected */
#define PORT_EV_FC 0x00010000 /* data flow enabled flag changed by remote */
#define PORT_EV_FCS 0x00020000 /* data flow enable status true = enabled */
/*
** To register for events application should provide bitmask with
** corresponding bit set
*/
#define PORT_MASK_ALL (PORT_EV_RXCHAR | PORT_EV_TXEMPTY | PORT_EV_CTS | \
PORT_EV_DSR | PORT_EV_RLSD | PORT_EV_BREAK | \
PORT_EV_ERR | PORT_EV_RING | PORT_EV_CONNECT_ERR | \
PORT_EV_DSRS | PORT_EV_CTSS | PORT_EV_RLSDS | \
PORT_EV_RXFLAG | PORT_EV_TXCHAR | PORT_EV_OVERRUN | \
PORT_EV_FC | PORT_EV_FCS | PORT_EV_CONNECTED)
/*
** Define port result codes
*/
#define PORT_SUCCESS 0
#define PORT_ERR_BASE 0
#define PORT_UNKNOWN_ERROR (PORT_ERR_BASE + 1)
#define PORT_ALREADY_OPENED (PORT_ERR_BASE + 2)
#define PORT_CMD_PENDING (PORT_ERR_BASE + 3)
#define PORT_APP_NOT_REGISTERED (PORT_ERR_BASE + 4)
#define PORT_NO_MEM (PORT_ERR_BASE + 5)
#define PORT_NO_RESOURCES (PORT_ERR_BASE + 6)
#define PORT_BAD_BD_ADDR (PORT_ERR_BASE + 7)
#define PORT_BAD_HANDLE (PORT_ERR_BASE + 9)
#define PORT_NOT_OPENED (PORT_ERR_BASE + 10)
#define PORT_LINE_ERR (PORT_ERR_BASE + 11)
#define PORT_START_FAILED (PORT_ERR_BASE + 12)
#define PORT_PAR_NEG_FAILED (PORT_ERR_BASE + 13)
#define PORT_PORT_NEG_FAILED (PORT_ERR_BASE + 14)
#define PORT_SEC_FAILED (PORT_ERR_BASE + 15)
#define PORT_PEER_CONNECTION_FAILED (PORT_ERR_BASE + 16)
#define PORT_PEER_FAILED (PORT_ERR_BASE + 17)
#define PORT_PEER_TIMEOUT (PORT_ERR_BASE + 18)
#define PORT_CLOSED (PORT_ERR_BASE + 19)
#define PORT_TX_FULL (PORT_ERR_BASE + 20)
#define PORT_LOCAL_CLOSED (PORT_ERR_BASE + 21)
#define PORT_LOCAL_TIMEOUT (PORT_ERR_BASE + 22)
#define PORT_TX_QUEUE_DISABLED (PORT_ERR_BASE + 23)
#define PORT_PAGE_TIMEOUT (PORT_ERR_BASE + 24)
#define PORT_INVALID_SCN (PORT_ERR_BASE + 25)
#define PORT_ERR_MAX (PORT_ERR_BASE + 26)
/*****************************************************************************
** External Function Declarations
*****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
/*******************************************************************************
**
** Function RFCOMM_CreateConnection
**
** Description RFCOMM_CreateConnection function is used from the application
** to establish serial port connection to the peer device,
** or allow RFCOMM to accept a connection from the peer
** application.
**
** Parameters: scn - Service Channel Number as registered with
** the SDP (server) or obtained using SDP from
** the peer device (client).
** is_server - TRUE if requesting application is a server
** mtu - Maximum frame size the application can accept
** bd_addr - BD_ADDR of the peer (client)
** mask - specifies events to be enabled. A value
** of zero disables all events.
** p_handle - OUT pointer to the handle.
** p_mgmt_cb - pointer to callback function to receive
** connection up/down events.
** Notes:
**
** Server can call this function with the same scn parameter multiple times if
** it is ready to accept multiple simulteneous connections.
**
** DLCI for the connection is (scn * 2 + 1) if client originates connection on
** existing none initiator multiplexer channel. Otherwise it is (scn * 2).
** For the server DLCI can be changed later if client will be calling it using
** (scn * 2 + 1) dlci.
**
*******************************************************************************/
extern int RFCOMM_CreateConnection (UINT16 uuid, UINT8 scn,
BOOLEAN is_server, UINT16 mtu,
BD_ADDR bd_addr, UINT16 *p_handle,
tPORT_CALLBACK *p_mgmt_cb);
/*******************************************************************************
**
** Function RFCOMM_RemoveConnection
**
** Description This function is called to close the specified connection.
**
** Parameters: handle - Handle of the port returned in the Open
**
*******************************************************************************/
extern int RFCOMM_RemoveConnection (UINT16 handle);
/*******************************************************************************
**
** Function RFCOMM_RemoveServer
**
** Description This function is called to close the server port.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
**
*******************************************************************************/
extern int RFCOMM_RemoveServer (UINT16 handle);
/*******************************************************************************
**
** Function PORT_SetEventCallback
**
** Description Set event callback the specified connection.
**
** Parameters: handle - Handle of the port returned in the Open
** p_callback - address of the callback function which should
** be called from the RFCOMM when an event
** specified in the mask occurs.
**
*******************************************************************************/
extern int PORT_SetEventCallback (UINT16 port_handle,
tPORT_CALLBACK *p_port_cb);
/*******************************************************************************
**
** Function PORT_ClearKeepHandleFlag
**
** Description This function is called to clear the keep handle flag
** which will cause not to keep the port handle open when closed
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
**
*******************************************************************************/
int PORT_ClearKeepHandleFlag (UINT16 port_handle);
/*******************************************************************************
**
** Function PORT_SetEventCallback
**
** Description Set event data callback the specified connection.
**
** Parameters: handle - Handle of the port returned in the Open
** p_callback - address of the callback function which should
** be called from the RFCOMM when a data
** packet is received.
**
*******************************************************************************/
extern int PORT_SetDataCallback (UINT16 port_handle,
tPORT_DATA_CALLBACK *p_cb);
extern int PORT_SetDataCOCallback (UINT16 port_handle, tPORT_DATA_CO_CALLBACK *p_port_cb);
/*******************************************************************************
**
** Function PORT_SetEventMask
**
** Description This function is called to close the specified connection.
**
** Parameters: handle - Handle of the port returned in the Open
** mask - specifies events to be enabled. A value
** of zero disables all events.
**
*******************************************************************************/
extern int PORT_SetEventMask (UINT16 port_handle, UINT32 mask);
/*******************************************************************************
**
** Function PORT_CheckConnection
**
** Description This function returns PORT_SUCCESS if connection referenced
** by handle is up and running
**
** Parameters: handle - Handle of the port returned in the Open
** bd_addr - OUT bd_addr of the peer
** p_lcid - OUT L2CAP's LCID
**
*******************************************************************************/
extern int PORT_CheckConnection (UINT16 handle, BD_ADDR bd_addr,
UINT16 *p_lcid);
/*******************************************************************************
**
** Function PORT_IsOpening
**
** Description This function returns TRUE if there is any RFCOMM connection
** opening in process.
**
** Parameters: TRUE if any connection opening is found
** bd_addr - bd_addr of the peer
**
*******************************************************************************/
extern BOOLEAN PORT_IsOpening (BD_ADDR bd_addr);
/*******************************************************************************
**
** Function PORT_SetState
**
** Description This function configures connection according to the
** specifications in the tPORT_STATE structure.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_settings - Pointer to a tPORT_STATE structure containing
** configuration information for the connection.
**
*******************************************************************************/
extern int PORT_SetState (UINT16 handle, tPORT_STATE *p_settings);
/*******************************************************************************
**
** Function PORT_GetRxQueueCnt
**
** Description This function return number of buffers on the rx queue.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_rx_queue_count - Pointer to return queue count in.
**
*******************************************************************************/
extern int PORT_GetRxQueueCnt (UINT16 handle, UINT16 *p_rx_queue_count);
/*******************************************************************************
**
** Function PORT_GetState
**
** Description This function is called to fill tPORT_STATE structure
** with the current control settings for the port
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_settings - Pointer to a tPORT_STATE structure in which
** configuration information is returned.
**
*******************************************************************************/
extern int PORT_GetState (UINT16 handle, tPORT_STATE *p_settings);
/*******************************************************************************
**
** Function PORT_Control
**
** Description This function directs a specified connection to pass control
** control information to the peer device.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** signal - specify the function to be passed
**
*******************************************************************************/
#define PORT_SET_DTRDSR 0x01
#define PORT_CLR_DTRDSR 0x02
#define PORT_SET_CTSRTS 0x03
#define PORT_CLR_CTSRTS 0x04
#define PORT_SET_RI 0x05 /* DCE only */
#define PORT_CLR_RI 0x06 /* DCE only */
#define PORT_SET_DCD 0x07 /* DCE only */
#define PORT_CLR_DCD 0x08 /* DCE only */
#define PORT_BREAK 0x09 /* Break event */
extern int PORT_Control (UINT16 handle, UINT8 signal);
/*******************************************************************************
**
** Function PORT_FlowControl
**
** Description This function directs a specified connection to pass
** flow control message to the peer device. Enable flag passed
** shows if port can accept more data.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** enable - enables data flow
**
*******************************************************************************/
extern int PORT_FlowControl (UINT16 handle, BOOLEAN enable);
/*******************************************************************************
**
** Function PORT_GetModemStatus
**
** Description This function retrieves modem control signals. Normally
** application will call this function after a callback
** function is called with notification that one of signals
** has been changed.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** callback.
** p_signal - specify the pointer to control signals info
**
*******************************************************************************/
#define PORT_DTRDSR_ON 0x01
#define PORT_CTSRTS_ON 0x02
#define PORT_RING_ON 0x04
#define PORT_DCD_ON 0x08
/*
** Define default initial local modem signals state set after connection established
*/
#define PORT_OBEX_DEFAULT_SIGNAL_STATE (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
#define PORT_SPP_DEFAULT_SIGNAL_STATE (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
#define PORT_PPP_DEFAULT_SIGNAL_STATE (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
#define PORT_DUN_DEFAULT_SIGNAL_STATE (PORT_DTRDSR_ON | PORT_CTSRTS_ON)
extern int PORT_GetModemStatus (UINT16 handle, UINT8 *p_control_signal);
/*******************************************************************************
**
** Function PORT_ClearError
**
** Description This function retreives information about a communications
** error and reports current status of a connection. The
** function should be called when an error occures to clear
** the connection error flag and to enable additional read
** and write operations.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_errors - pointer of the variable to receive error codes
** p_status - pointer to the tPORT_STATUS structur to receive
** connection status
**
*******************************************************************************/
#define PORT_ERR_BREAK 0x01 /* Break condition occured on the peer device */
#define PORT_ERR_OVERRUN 0x02 /* Overrun is reported by peer device */
#define PORT_ERR_FRAME 0x04 /* Framing error reported by peer device */
#define PORT_ERR_RXOVER 0x08 /* Input queue overflow occured */
#define PORT_ERR_TXFULL 0x10 /* Output queue overflow occured */
typedef struct
{
#define PORT_FLAG_CTS_HOLD 0x01 /* Tx is waiting for CTS signal */
#define PORT_FLAG_DSR_HOLD 0x02 /* Tx is waiting for DSR signal */
#define PORT_FLAG_RLSD_HOLD 0x04 /* Tx is waiting for RLSD signal */
UINT16 flags;
UINT16 in_queue_size; /* Number of bytes in the input queue */
UINT16 out_queue_size; /* Number of bytes in the output queue */
UINT16 mtu_size; /* peer MTU size */
} tPORT_STATUS;
extern int PORT_ClearError (UINT16 handle, UINT16 *p_errors,
tPORT_STATUS *p_status);
/*******************************************************************************
**
** Function PORT_SendError
**
** Description This function send a communications error to the peer device
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** errors - receive error codes
**
*******************************************************************************/
extern int PORT_SendError (UINT16 handle, UINT8 errors);
/*******************************************************************************
**
** Function PORT_GetQueueStatus
**
** Description This function reports current status of a connection.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_status - pointer to the tPORT_STATUS structur to receive
** connection status
**
*******************************************************************************/
extern int PORT_GetQueueStatus (UINT16 handle, tPORT_STATUS *p_status);
/*******************************************************************************
**
** Function PORT_Purge
**
** Description This function discards all the data from the output or
** input queues of the specified connection.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** purge_flags - specify the action to take.
**
*******************************************************************************/
#define PORT_PURGE_TXCLEAR 0x01
#define PORT_PURGE_RXCLEAR 0x02
extern int PORT_Purge (UINT16 handle, UINT8 purge_flags);
/*******************************************************************************
**
** Function PORT_Read
**
** Description This function returns the pointer to the buffer received
** from the peer device. Normally application will call this
** function after receiving PORT_EVT_RXCHAR event.
** Application calling this function is responsible to free
** buffer returned.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** callback.
** pp_buf - pointer to address of buffer with data,
**
*******************************************************************************/
extern int PORT_Read (UINT16 handle, BT_HDR **pp_buf);
/*******************************************************************************
**
** Function PORT_ReadData
**
** Description Normally application will call this function after receiving
** PORT_EVT_RXCHAR event.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** callback.
** p_data - Data area
** max_len - Byte count requested
** p_len - Byte count received
**
*******************************************************************************/
extern int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len,
UINT16 *p_len);
/*******************************************************************************
**
** Function PORT_Write
**
** Description This function to send BT buffer to the peer device.
** Application should not free the buffer.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_buf - pointer to the buffer with data,
**
*******************************************************************************/
extern int PORT_Write (UINT16 handle, BT_HDR *p_buf);
/*******************************************************************************
**
** Function PORT_WriteData
**
** Description This function is called from the legacy application to
** send data.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_data - Data area
** max_len - Byte count to write
** p_len - Bytes written
**
*******************************************************************************/
extern int PORT_WriteData (UINT16 handle, char *p_data, UINT16 max_len,
UINT16 *p_len);
/*******************************************************************************
**
** Function PORT_WriteDataCO
**
** Description Normally not GKI aware application will call this function
** to send data to the port by callout functions.
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
**
*******************************************************************************/
extern int PORT_WriteDataCO (UINT16 handle, int* p_len);
/*******************************************************************************
**
** Function PORT_Test
**
** Description Application can call this function to send RFCOMM Test frame
**
** Parameters: handle - Handle returned in the RFCOMM_CreateConnection
** p_data - Data area
** max_len - Byte count requested
**
*******************************************************************************/
extern int PORT_Test (UINT16 handle, UINT8 *p_data, UINT16 len);
/*******************************************************************************
**
** Function RFCOMM_Init
**
** Description This function is called to initialize RFCOMM layer
**
*******************************************************************************/
extern void RFCOMM_Init (void);
/*******************************************************************************
**
** Function PORT_SetTraceLevel
**
** Description This function sets the trace level for RFCOMM. If called with
** a value of 0xFF, it simply reads the current trace level.
**
** Returns the new (current) trace level
**
*******************************************************************************/
extern UINT8 PORT_SetTraceLevel (UINT8 new_level);
/*******************************************************************************
**
** Function PORT_GetResultString
**
** Description This function returns the human-readable string for a given
** result code.
**
** Returns a pointer to the human-readable string for the given
** result. Note that the string returned must not be freed.
**
*******************************************************************************/
extern const char *PORT_GetResultString (const uint8_t result_code);
#ifdef __cplusplus
}
#endif
#endif /* PORT_API_H */