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view src/cs/services/audio/audio_features_i.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
line source

#ifndef AUDIO_FEATURES_I_H
#define AUDIO_FEATURES_I_H

  #include "audio/audio_api.h"

  /* configuration */
  /* FFS or RAM manager exist only if they are enabled AND a related L1 feature is enabled
     Currently only VOICE MEMO AMR is supported */
  #define AUDIO_ENABLE_NEW_FFS_MANAGER 1
  #define AUDIO_NEW_FFS_MANAGER (AUDIO_ENABLE_NEW_FFS_MANAGER)&&(L1_VOICE_MEMO_AMR)
  #define AUDIO_ENABLE_RAM_MANAGER 1
  #define AUDIO_RAM_MANAGER (AUDIO_ENABLE_RAM_MANAGER)&&(L1_VOICE_MEMO_AMR)
  #define AUDIO_MEM_MANAGER (AUDIO_RAM_MANAGER) || (AUDIO_NEW_FFS_MANAGER)

  /* external prototype */
  #if (KEYBEEP)
    void audio_keybeep_manager (T_RV_HDR *p_message);
    void audio_keybeep_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
  #endif
  #if (TONE)
    void audio_tones_manager (T_RV_HDR *p_message);
    void audio_tones_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
  #endif
  #if (MELODY_E1)
    void audio_melody_E1_manager_0       (T_RV_HDR *p_message);
    void audio_melody_E1_manager_1       (T_RV_HDR *p_message);
    UINT8 audio_melody_E1_message_switch (T_RV_HDR *p_message);
    void audio_melody_E1_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
  #endif
  #if (MELODY_E2)
    void audio_melody_E2_manager_0       (T_RV_HDR *p_message);
    void audio_melody_E2_manager_1       (T_RV_HDR *p_message);
    UINT8 audio_melody_E2_message_switch (T_RV_HDR *p_message);
    void audio_background_melody_e2_download_instrument_manager (T_RV_HDR *p_message);
    void audio_melody_E2_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
  #endif
  #if (VOICE_MEMO)
    void audio_vm_play_manager (T_RV_HDR *p_message);
    void audio_vm_record_manager(T_RV_HDR *p_message);
    UINT8 audio_voice_memo_message_switch (T_RV_HDR *p_message);
    void audio_vm_play_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
    void audio_vm_record_send_status ( T_AUDIO_RET status,
                                              UINT32 recorded_size,
                                              T_RV_RETURN return_path);
  #endif
  #if (MELODY_E1) || (MELODY_E2) || (VOICE_MEMO)
    void audio_ffs_manager (T_RV_HDR *p_message);
    void audio_ffs_downloader (void);
  #endif
  #if (L1_VOICE_MEMO_AMR)&&(AUDIO_MEM_MANAGER)
    void audio_vm_amr_play_from_memory_manager (T_RV_HDR *p_message);
    void audio_vm_amr_record_to_memory_manager (T_RV_HDR *p_message);
  #endif
  #if (L1_VOICE_MEMO_AMR)
    UINT8 audio_voice_memo_amr_memory_message_switch (T_RV_HDR *p_message);
    void audio_vm_amr_play_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
    void audio_vm_amr_record_send_status ( T_AUDIO_RET status,
                                           UINT32 recorded_size,
                                           T_RV_RETURN return_path);
  #endif
  #if (SPEECH_RECO)
    void audio_sr_enroll_manager (T_RV_HDR *p_message);
    void audio_sr_update_manager (T_RV_HDR *p_message);
    void audio_sr_reco_manager (T_RV_HDR *p_message);
    #ifndef _WINDOWS
      void audio_sr_background_manager(T_RV_HDR *p_message);
    #endif
    void audio_sr_enroll_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
    void audio_sr_update_send_status (T_AUDIO_RET status, T_RV_RETURN return_path);
    void audio_sr_reco_send_status (T_AUDIO_RET status, UINT8 word_index, T_RV_RETURN return_path);
  #endif

  #if (AUDIO_MEM_MANAGER)
    UINT8 audio_mem_message_switch(T_RV_HDR *p_message);
    void audio_mem_manager (T_RV_HDR *p_message);
  #endif
  #if (L1_AUDIO_DRIVER)
    void audio_driver_manager(T_RV_HDR *p_message);
    UINT8 audio_driver_message_switch(T_RV_HDR *p_message);
  #endif

  /* audio mode prototype */
  void  audio_mode_full_access_write_manager  (T_RV_HDR *p_message);
  void  audio_mode_load_manager               (T_RV_HDR *p_message);
  void  audio_mode_save_manager               (T_RV_HDR *p_message);
  void audio_mode_speaker_volume_manager      (T_RV_HDR *p_message);
  UINT8 audio_mode_message_switch             (T_RV_HDR *p_message);

  void *audio_allocate_l1_message(UINT16 size);
  void audio_deallocate_l1_message(void *message);
  T_RV_RET audio_send_l1_message(INT16 message_id, void *message);
#endif