Main Files

Mass Storage

• ai_usb_ms.c : The USB mass storage module to be plugged into the generic audio interface.
• host_mem.c : USB host memory manager.
• scsi_decoder.c : Set of functions to parse SCSI packets.
• host_mass_storage_task.c : Detects the presence of a USB mass storage device.

FAT

• Low level functions
  • fat.c : Set of all basic low level functions (get_cluster_list...).
  • fat_unusual.c : Extended set of low level functions (mount...).
• Abstract interface
  • ctrl_access.c : Abstract layer for memory management.
• Navigation
  • navigation.c : Functions to navigate in the FAT file system (cd...).
  • nav_automatic.c : Plug-in to automatic navigation (next, previous...).
  • nav_filterlist.c : Plug-in to handle file filtering during navigation.
• File
  • file.c : Basic functions to handle a file (open, read...).
  • reader_txt.c : Set of function to handle text files (read_line...).
  • unicode.c : Plug-in to handle Unicode in text files.
  • play_list.c : Set of functions to parse and read a playlist file.

Audio Player Core

• main.c : Contains the main() function.
• com_task.c : File in charge of the HMI.
• audio_interface.c : The abstract layer providing a generic API for audio players.
• audio_mixer.c : Common API for output codec drivers.
• buff_player.c : Audio samples bufferization.

USB Host

• usb_task.c : Basic USB features handler (connections, errors...).
• usb_host_task.c : State machine of the USB host process.
• usb_host_enum.c : In charge of the USB host enumeration.