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/*****************************************************************************/
/* */
/* Name: hidd_mgmt.c */
/* */
/* Description: this file contains the HID Device Management logic */
/* */
/* NOTE: In the interest of keeping code small, there is an */
/* inherent assumption that L2CAP always runs a timer, */
/* and so the HID management never needs a timer on L2CAP */
/* actions like connect and disconnect. */
/* */
/* */
/* Copyright (c) 2002-2004, WIDCOMM Inc., All Rights Reserved. */
/* WIDCOMM Bluetooth Core. Proprietary and confidential. */
/*****************************************************************************/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "gki.h"
#include "bt_types.h"
#include "hidd_api.h"
#include "hiddefs.h"
#include "hidd_int.h"
#include "btu.h"
#include "btm_api.h"
/********************************************************************************/
/* L O C A L F U N C T I O N P R O T O T Y P E S */
/********************************************************************************/
static tHID_STATUS hidd_no_conn_proc_evt( UINT8 event, void *p_data );
static tHID_STATUS hidd_connecting_proc_evt( UINT8 event, void *p_data );
static tHID_STATUS hidd_connected_proc_evt( UINT8 event, void *p_data );
static tHID_STATUS hidd_disc_ing_proc_evt( UINT8 event, void *p_data );
/* State machine jump table.
*/
tHIDD_MGMT_EVT_HDLR * const hidd_sm_proc_evt[] =
{
hidd_no_conn_proc_evt,
hidd_connecting_proc_evt,
hidd_connected_proc_evt,
hidd_disc_ing_proc_evt
};
/* Main HID control block */
#if HID_DYNAMIC_MEMORY == FALSE
tHIDDEV_CB hd_cb;
#endif
/*******************************************************************************
**
** Function hidd_mgmt_process_evt
**
** Description This function is called by other modules to report an event
**
** Returns tHID_STATUS
**
*******************************************************************************/
tHID_STATUS hidd_mgmt_process_evt( UINT8 event, void *p_data )
{
HIDD_TRACE_DEBUG3("hidd_mgmt_process_evt known: %d, s:%d, e:%d",
hd_cb.host_known, hd_cb.dev_state, event);
if( hd_cb.host_known )
{
return ((hidd_sm_proc_evt[hd_cb.dev_state]) (event, p_data)); /* Event is passed to main State Machine */
}
if( event == HOST_CONN_OPEN )
{
hd_cb.host_known = TRUE;
memcpy( hd_cb.host_addr, (BD_ADDR *) p_data, BD_ADDR_LEN ) ;
hd_cb.dev_state = HID_DEV_ST_CONNECTED ;
/* Call-Back the Application with this information */
hd_cb.callback(HID_DEV_EVT_OPEN, 0, (tHID_DEV_CBACK_DATA *) hd_cb.host_addr ) ;
return( HID_SUCCESS );
}
return( HID_ERR_HOST_UNKNOWN );
}
/*******************************************************************************
**
** Function hidd_no_conn_proc_evt
**
** Description NO-CONN state event handler.
**
** Returns tHID_STATUS
**
*******************************************************************************/
static tHID_STATUS hidd_no_conn_proc_evt( UINT8 event, void *p_data )
{
tHID_STATUS st = HID_SUCCESS;
switch( event )
{
case HOST_CONN_OPEN:
hd_cb.dev_state = HID_DEV_ST_CONNECTED ;
hd_cb.callback(HID_DEV_EVT_OPEN, 0, (tHID_DEV_CBACK_DATA *) hd_cb.host_addr ) ;
break;
case HID_API_CONNECT:
hd_cb.conn_tries = 1;
hd_cb.dev_state = HID_DEV_ST_CONNECTING ;
if( (st = hidd_conn_initiate()) != HID_SUCCESS )
{
#if HID_DEV_MAX_CONN_RETRY > 0
btu_start_timer (&(hd_cb.conn.timer_entry), BTU_TTYPE_USER_FUNC, HID_DEV_REPAGE_WIN);
return HID_SUCCESS;
#else
hd_cb.dev_state = HID_DEV_ST_NO_CONN ;
#endif
}
break;
default:
st = HID_ERR_NO_CONNECTION;
}
return st;
}
/*******************************************************************************
**
** Function hidd_proc_repage_timeout
**
** Description function to handle timeout.
**
** Returns void
**
*******************************************************************************/
void hidd_proc_repage_timeout (TIMER_LIST_ENT *p_tle)
{
HIDD_TRACE_DEBUG0 ("hidd_proc_repage_timeout");
hd_cb.conn_tries++;
if( hidd_conn_initiate() != HID_SUCCESS )
{
if( hd_cb.conn_tries > HID_DEV_MAX_CONN_RETRY )
{
hd_cb.dev_state = HID_DEV_ST_NO_CONN ;
hd_cb.callback(HID_DEV_EVT_CLOSE, 0, NULL );
}
else
btu_start_timer (&(hd_cb.conn.timer_entry), BTU_TTYPE_USER_FUNC, HID_DEV_REPAGE_WIN);
}
else
hd_cb.callback( HID_DEV_EVT_RETRYING, hd_cb.conn_tries, NULL );
}
/*******************************************************************************
**
** Function hidd_connecting_proc_evt
**
** Description CONNECTING state event handler
**
** Returns tHID_STATUS
**
*******************************************************************************/
static tHID_STATUS hidd_connecting_proc_evt( UINT8 event, void *p_data )
{
switch( event )
{
case HOST_CONN_OPEN:
hd_cb.dev_state = HID_DEV_ST_CONNECTED ;
hd_cb.callback(HID_DEV_EVT_OPEN, 0, (tHID_DEV_CBACK_DATA *) hd_cb.host_addr ) ;
break;
case HOST_CONN_FAIL:
if( hd_cb.conn_tries > HID_DEV_MAX_CONN_RETRY )
{
UINT16 reason = *( (UINT16 *) p_data);
hd_cb.dev_state = HID_DEV_ST_NO_CONN;
hd_cb.callback(HID_DEV_EVT_CLOSE, reason, NULL );
}
#if HID_DEV_MAX_CONN_RETRY > 0
else
{
btu_start_timer (&(hd_cb.conn.timer_entry), BTU_TTYPE_USER_FUNC, HID_DEV_REPAGE_WIN);
}
#endif
break;
case HOST_CONN_CLOSE:
case HOST_CONN_LOST:
hd_cb.dev_state = HID_DEV_ST_NO_CONN;
hd_cb.callback(HID_DEV_EVT_CLOSE, *((UINT16 *) p_data), NULL );
break;
case HID_API_DISCONNECT:
hd_cb.dev_state = HID_DEV_ST_NO_CONN ;
btu_stop_timer (&(hd_cb.conn.timer_entry));
hidd_conn_disconnect();
break;
default:
return( HID_ERR_CONN_IN_PROCESS ) ;
}
return (HID_SUCCESS);
}
/*******************************************************************************
**
** Function hidd_mgmt_conn_closed
**
** Description Called when l2cap channels have been released
**
** Returns void
**
*******************************************************************************/
void hidd_mgmt_conn_closed( UINT16 reason )
{
if( hd_cb.unplug_on )
{
hd_cb.host_known = FALSE; /* This allows the device to accept connection from other hosts */
}
hd_cb.dev_state = HID_DEV_ST_NO_CONN;
hd_cb.callback(HID_DEV_EVT_CLOSE, reason, NULL );
}
/*******************************************************************************
**
** Function hidd_connected_proc_evt
**
** Description CONNECTED state event handler
**
** Returns tHID_STATUS
**
*******************************************************************************/
static tHID_STATUS hidd_connected_proc_evt( UINT8 event, void *p_data )
{
switch( event )
{
case HOST_CONN_LOST:
#if HID_DEV_RECONN_INITIATE == TRUE
hd_cb.dev_state = HID_DEV_ST_CONNECTING ;
hd_cb.conn_tries = 0;
btu_start_timer (&(hd_cb.conn.timer_entry), BTU_TTYPE_USER_FUNC, HID_DEV_REPAGE_WIN);
#else
hidd_mgmt_conn_closed( *((UINT16 *) p_data) ) ;
#endif
break;
case HOST_CONN_CLOSE:
hidd_mgmt_conn_closed( *((UINT16 *) p_data) ) ;
break;
case HID_API_DISCONNECT:
hd_cb.dev_state = HID_DEV_ST_DISC_ING ;
hidd_conn_disconnect();
break;
case HID_API_SEND_DATA: /*Send Input reports, handshake or virtual-unplug */
return hidd_conn_snd_data( (tHID_SND_DATA_PARAMS *) p_data );
default:
return( HID_ERR_ALREADY_CONN ) ;
}
return( HID_SUCCESS );
}
/*******************************************************************************
**
** Function hidd_disc_ing_proc_evt
**
** Description DISCONNECTING state event handler
**
** Returns tHID_STATUS
**
*******************************************************************************/
static tHID_STATUS hidd_disc_ing_proc_evt( UINT8 event, void *p_data )
{
switch( event )
{
case HOST_CONN_LOST:
case HOST_CONN_FAIL:
case HOST_CONN_CLOSE:
hidd_mgmt_conn_closed( *((UINT16 *) p_data) ) ;
break;
default:
return( HID_ERR_DISCONNECTING ) ;
}
return( HID_SUCCESS );
}
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