int main(void) {
if (init_system() != 0) return(-1);
indexed_file_count = build_file_index(files);
printf("Indexed files: %d\n", indexed_file_count);
IOWR(BUTTON_PIO_BASE, 2, 0xf);
IOWR(BUTTON_PIO_BASE, 3, 0x0);
alt_irq_register( BUTTON_PIO_IRQ, (void*)0, button_ISR );
IOWR(LED_PIO_BASE, 0, 0x00);
player_state = PLAYER_STATE_DEFAULT;
int length;
data_file file;
while(1){
if ((cur_file_index_update == 1) || (player_state_update == 1)) {
if (cur_file_index_update)
file = files[cur_file_index];
switch (player_state){
case PLAYER_STATE_PLAYING:
LCD_File_Buffering(file.Name);
length = 1 + ceil(file.FileSize/(BPB_BytsPerSec*BPB_SecPerClus));
build_cluster_chain(cluster_chain, length, &file);
LCD_Display(file.Name, player_mode);
play(&file, buffer, cluster_chain, player_mode);
player_state = PLAYER_STATE_USER_INPUT;
case PLAYER_STATE_USER_INPUT:
LCD_Display(file.Name, player_mode);
}
player_state_update = 0;
cur_file_index_update = 0;
}
}
return(0);
}
int main()
{
alt_u8 _prevswstate = 0x0;
Setup();
//Set up the initial file on SD card
search_for_filetype("WAV", &_fileinfo, 0, 1);
_swstate = IORD(SWITCH_PIO_BASE, 0);
_prevswstate = 8;
while(1)
{
//Listen for any changes in the switches, update if so
_swstate = IORD(SWITCH_PIO_BASE, 0);
if(_swstate != _prevswstate){
DisplayStatusLCD();
_prevswstate = _swstate & 0x07;
}
if (_playing == 1)
{
DisplayStatusLCD();
printf("Playing audio file: %s\n", _fileinfo.Name);
//Disable other buttons
IOWR(BUTTON_PIO_BASE, 2, 0x01);
//Initialise cluster chain and build it from the audio file
int clusterChain[100000];
int tracklength = 1 + ceil(_fileinfo.FileSize/(BPB_BytsPerSec*BPB_SecPerClus));
LCD_File_Buffering(_fileinfo.Name);
build_cluster_chain(clusterChain, tracklength, &_fileinfo);
//Update LCD and play audio dependent on user-selected mode
DisplayStatusLCD();
switch(_swstate){
case SW_NORMALPLAY:
NormalPlay(_fileinfo, tracklength, clusterChain);
break;
case SW_DOUBLEPLAY:
DoublePlay(_fileinfo, tracklength, clusterChain);
break;
case SW_HALFPLAY:
HalfPlay(_fileinfo, tracklength, clusterChain);
break;
case SW_DELAYPLAY:
DelayPlay(_fileinfo, tracklength, clusterChain);
break;
case SW_REVERSEPLAY:
ReversePlay(_fileinfo, tracklength, clusterChain);
break;
default:
NormalPlay(_fileinfo, tracklength, clusterChain);
break;
}
//Enable buttons, and reset play flag
IOWR(BUTTON_PIO_BASE, 2, 0xf);
_playing = 0;
}
}
return 0;
}
