am_event_handler_peripheral.cc

Motorola synergy audio component

/*(c) Copyright Motorola 1996, All rights reserved.
  Motorola Confidential Proprietary
  Contains confidential proprietary information of Motorola, Inc.
  Reverse engineering is prohibited.
  The copyright notice does not imply publication.
  
  DESCRIPTION:
     This module handles primitives regarding accessories

******************************* REVISION HISTORY ******************************
 
Date        Author      Reference Number
========    ========    ================
2005-06-13 w17860      CR - LIBff63840
              Apple 3990042: Sometimes after sync, phone only plays out right headphone

2004-04-08  w16355      CR - LIBdd93682
            RTime never told to stop stereo headset polling.
            - Remove old globals for stereo headset detection since we are 
              now using a special volume level.

03-10-15   mloutris    CR - LIBdd43633
           E398: New stereo headset detection AM sw to support new HW.
           - Added a call to store the state of detecting a headset
             (assumed to be stereo), and waiting for the accessory
             insertion tone to verify whether the headset is stereo or mono.
           - Removed CDMA conditionally compiled code because CDMA now uses
             the Qualcomm audio interface, and this code is unused.

  03-04-17   e11237      CR - LIBbb87186
              bluetooth HFP on triplets

02-04-04   w17860      CR - LIBbb24254
           Entertainment mute is not working properly

02-03-17   brb032      LIBbb23280 - LCA catchup 

01-04-20   w17860      CR - LIBbb05515
           Audio support for the TTY accessory in digital call mode.

00-12-07   mloutris    CR - CSGce75636
           Inhibit sleep mode when a bluetooth device is attached for frame sync.
           - Added code to set a global to capture the attached status of bluetooth.
02-01-17    bal023      LIBbb16809
            LCA support for TTY - catchup from CR LIBbb05515

01-04-20   w17860      CR - LIBbb05515
           Audio support for the TTY accessory in digital call mode.
	      
00-12-07   mloutris    CR - CSGce75636
              Inhibit sleep mode when a bluetooth device is attached for frame sync.
              - Added code to set a global to capture the attached status of bluetooth.

00-08-09   mtaraba      CR - CSGce55882
           Eliminate file gsm.h from audio manager

00-04-19    mkloza      PR - CSGce54341
            MATRIX Command implementation
            - updated handle_audio_accessories_change_ind()

*/


#include <SUAPI/suapi.h>
#include <stddef.h>
#include <audio/AM_Relay_Layer.H>
#include <audio/AM_Event_Handler.H>
#include <audio/am_app_configuration_server.h>
#include <audio/AM_App_Configuration_Server.H>
#include <ENGINE_HAPI/hapi_portlist.h>
#include <ENGINE_AUDIO/audio_conditional_compile_def.h>
#include <audio/am_hw_primitive_builder_main.h>

#ifndef DL_AUDIO_AUF_INCLUDE
#include <SYNERGY_DEVICE_LAYER/dl_audio_auf.h>
#include <SYNERGY_DEVICE_LAYER/dl_acc_auf.h>
#endif

/************** GLOBAL VARIABLES *********************************************/

#if (MAKE_TTY == TRUE)
UINT16 am_event_tty_mode = AM_HW_TTY_MODE_DISABLED;
extern BOOL am_is_tty_enabled;
extern UINT16  am_hw_last_tty_mode;

const static UINT16 am_hw_tty_mode_mapping_table [] = 
{
    AM_HW_TTY_MODE_DISABLED ,
    AM_HW_TTY_MODE_FULL ,
    AM_HW_TTY_MODE_VCO ,
    AM_HW_TTY_MODE_HCO     
};
#endif

/************** LOCAL VARIABLES **********************************************/
BOOL is_there_accessory_change= FALSE;


/* DESCRIPTION
   Function to handle a change in accessories
   or a change in the TTY mode.

   INPUTS
   AUD_Peripheral_Change_Ind_RX primitive. Unused at the moment
   
   OUTPUTS
   None.
   
   IMPORTANT NOTES
   None.
*/
void
AM_Event_Handler :: handle_audio_accessories_change_ind ( void *msg )
{
   /* Populate the device array */
   for ( UINT8 device = DL_ACC_START_DUMB_DEVICES; device < DL_ACC_NUM_DEVICES; device++ )
   {
      am_event_logic_processor.device_array[ device ] = DL_AccGetConnectionStatus( device );
   }

   is_there_accessory_change= TRUE;

#if (MAKE_TTY == TRUE)
   /*  Get the TTY mode from the device layer. */
   am_event_tty_mode = AM_App_Feature_Server :: read_state( DL_DB_FEATURE_ID_CURRENT_TTY );

   /*  Map the DL enum value into the value the DSP is expecting. */
   if ( ( am_event_tty_mode >= 0 )
   &&   ( am_event_tty_mode <= 3 ) )
   {
       am_event_tty_mode = am_hw_tty_mode_mapping_table [ am_event_tty_mode ] ;
   }
   
   if (am_event_tty_mode != am_hw_last_tty_mode)
   {
       am_is_tty_enabled = FALSE;
   }
#endif

   am_event_logic_processor.update_audio();

#if (AUDIO_GSM == TRUE)
   if (DL_AccGetConnectionStatus(DL_ACC_DM_USB_CARKIT))
   {
       /* Reset entertainment mute line thru DL */
       DL_AudMuteEntertainment(DL_AUDIO_ENTERTAINMENT_UPDATE_MUTE);
   }
#endif
}