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view src/condat/com/include/vmd.h @ 220:0ed36de51973

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ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents 4e78acac3d88
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM (6301)
|  Modul   :  
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Types definitions for the voice memo and dialling driver
|             .
+----------------------------------------------------------------------------- 
*/ 

#ifndef DEF_VMD_H
#define DEF_VMD_H

/*
 * Signal Types
 */
#define VMD_END_RECORD             1
#define VMD_END_PLAY               2
#define VMD_SPEECH_RECOGNITION     3


/*
 * type definitions
 */
typedef struct vmd_start_record_type
{
  USHORT * start_address;
  USHORT * stop_address;
  UBYTE    dtx_used;
  USHORT   tone_id;
} vmd_start_record_type;

typedef struct vmd_start_play_type
{
  USHORT * start_address;
} vmd_start_play_type;

typedef struct vmd_end_record_type
{
  USHORT * stop_address;
} vmd_end_record_type;

typedef struct vmd_end_play_type
{
  USHORT * stop_address;
} vmd_end_play_type;


typedef struct vmd_speech_recognition_req_type
{
  USHORT   i_speaker;
  USHORT   i_action;
  USHORT   i_param1;
  USHORT   i_param2;
  USHORT * address;
  USHORT   total_vocabulary_number;
} vmd_speech_recognition_req_type;

/*
 * Constants
 */
#define SC_SR_MAX_NB_USER          10

#define SC_SR_START_ENROLL          1
#define SC_SR_START_UPDATE          2
#define SC_SR_START_RECO            3
#define SC_SR_ABORT                 6
#define SC_SR_START_UPDATE_CHECK   13

#define C_SR_CORRECT_END            0
#define C_SR_CORRECT_END_ACQ        1
#define C_SR_CORRECT_END_UPD        2
#define C_SR_CORRECT_END_RECO       3
#define C_SR_TIME_OUT              11
#define C_SR_BAD_ACQUISITION       12
#define C_SR_OOV_TOOCLOSE          13
#define C_SR_UPDATE_CHECK_ERR      14
#define C_SR_BAD_RECOGNITION       20

#if defined (NEW_FRAME)
/*
 * to achieve backward compatibility with older definitions
 */
#define drv_SignalCB_Type           T_DRV_CB_FUNC
#define drv_SignalID_Type           T_DRV_SIGNAL
#endif

 /*
 * Prototypes
 */
EXTERN UBYTE vmd_init                       (drv_SignalCB_Type   in_SignalCBPtr);
EXTERN void  vmd_exit                       (void);
EXTERN UBYTE vmd_start_voice_memo_recording (vmd_start_record_type * vmd_parameter);
EXTERN UBYTE vmd_stop_voice_memo_recording  (void);
EXTERN UBYTE vmd_start_voice_memo_playing   (vmd_start_play_type   * vmd_parameter);
EXTERN UBYTE vmd_stop_voice_memo_playing  (void);

EXTERN UBYTE vmd_start_recognition          (vmd_speech_recognition_req_type * vmd_parameter);
EXTERN UBYTE vmd_primitive                  (USHORT opc, void * data);

#endif