/////////////////////////////////////////////////////////////////////////////
// Checks if the device <device_addr> is present (blocking)
// IN: -
// OUT: returns 0 if device is present; < 0 on errors
// (see README for error codes)
/////////////////////////////////////////////////////////////////////////////
s32 FRAM_CheckAvailable(u8 device_addr){
return FRAM_Read(device_addr, 0, NULL, 0);
}
/////////////////////////////////////////////////////////////////////////////
// This task is running endless in background
/////////////////////////////////////////////////////////////////////////////
void APP_Background(void){
u8 i;
while(1){
switch(phase){
case BS_CHECK_PHASE_INIT:
bs = 0;
block = 0;
last_error = 0;
last_error_code = 0;
time_read = 0xff;
time_write = 0xff;
// initialize IIC..
if(run == 0){
MIOS32_MIDI_SendDebugMessage("Bankstick check init...");
#if BS_CHECK_USE_FRAM_LAYER == 0
if( (last_error_code = MIOS32_IIC_BS_Init(0)) != 0){
#else
if( (last_error_code = FRAM_Init(0)) != 0){
#endif
last_error = BS_CHECK_ERROR_INIT;
phase = BS_CHECK_PHASE_FINISHED;
}
else{
for(i = 0;i < BS_CHECK_NUM_DEVICES; i++){
#if BS_CHECK_USE_FRAM_LAYER == 0
if ( (MIOS32_IIC_BS_CheckAvailable(i)) == 0) {
#else
if ( (FRAM_CheckAvailable(i)) != 0) {
#endif
report_iic_error();
last_error = BS_CHECK_ERROR_AVAILABLE;
last_error_code = i;
MIOS32_MIDI_SendDebugMessage("Bankstick %d not available",i);
phase = BS_CHECK_PHASE_FINISHED;
break;
}
}
}
}
else{
MIOS32_MIDI_SendDebugMessage("Start next check, run %d",run+1);
}
if(!last_error)
phase = BS_CHECK_PHASE_WRITE;
break;
case BS_CHECK_PHASE_WRITE:
// write blocks
if(bs == 0 && block == 0)
MIOS32_MIDI_SendDebugMessage("Start writing blocks...");
init_buffer();
#if BS_CHECK_USE_FRAM_LAYER == 0
if( (last_error_code = MIOS32_IIC_BS_Write(bs,block*BS_CHECK_DATA_BLOCKSIZE,(char*)buffer,BS_CHECK_DATA_BLOCKSIZE)) != 0){
#else
if( (last_error_code = FRAM_Write(bs,block*BS_CHECK_DATA_BLOCKSIZE,(char*)buffer,BS_CHECK_DATA_BLOCKSIZE)) != 0){
#endif
report_iic_error();
last_error = BS_CHECK_ERROR_WRITE;
phase = BS_CHECK_PHASE_FINISHED;
}
else{
if( (last_error_code = wait_write_finished()) < 0){
report_iic_error();
last_error = BS_CHECK_ERROR_CHECK_WRITE_FINISHED;
phase = BS_CHECK_PHASE_FINISHED;
}
else if( ++block >= BS_CHECK_NUM_BLOCKS_PER_DEVICE ){
MIOS32_MIDI_SendDebugMessage("Writing bankstick %d finished",bs);
block = 0;
if( ++bs >= BS_CHECK_NUM_DEVICES ){
bs = 0;
phase = BS_CHECK_PHASE_READ;
}
}
}
break;
case BS_CHECK_PHASE_READ:
// read blocks
if(bs == 0 && block == 0)
MIOS32_MIDI_SendDebugMessage("Start reading / comparing blocks...");
clear_buffer();
#if BS_CHECK_USE_FRAM_LAYER == 0
if( (last_error_code = MIOS32_IIC_BS_Read(bs,block*BS_CHECK_DATA_BLOCKSIZE,(char*)buffer,BS_CHECK_DATA_BLOCKSIZE)) != 0){
#else
if( (last_error_code = FRAM_Read(bs,block*BS_CHECK_DATA_BLOCKSIZE,(char*)buffer,BS_CHECK_DATA_BLOCKSIZE)) != 0){
#endif
report_iic_error();
last_error = BS_CHECK_ERROR_READ;
phase = BS_CHECK_PHASE_FINISHED;
}
else{
if( !check_buffer() ){
last_error = BS_CHECK_ERROR_COMPARE;
last_error_code = 0;// no further error specification
phase = BS_CHECK_PHASE_FINISHED;
}
else if( ++block >= BS_CHECK_NUM_BLOCKS_PER_DEVICE ){
MIOS32_MIDI_SendDebugMessage("Reading / comparing bankstick %d finished",bs);
block = 0;
if( ++bs >= BS_CHECK_NUM_DEVICES ){
MIOS32_MIDI_SendDebugMessage("Check run %d finished",run+1);
if(++run >= BS_CHECK_NUM_RUNS)
phase = BS_CHECK_PHASE_FINISHED;
else{
bs = 0;
phase = BS_CHECK_PHASE_START;
}
}
}
}
break;
}
}
}
static s32 wait_write_finished(void){
#if BS_CHECK_USE_FRAM_LAYER == 0
s32 err_code;
do{
err_code = MIOS32_IIC_BS_CheckWriteFinished(bs);
} while( err_code > 0 );
return err_code;
#else
return 0;
#endif
}
static void report_iic_error(void){
#if BS_CHECK_USE_FRAM_LAYER == 0
MIOS32_MIDI_SendDebugMessage("IIC error %d",MIOS32_IIC_LastErrorGet(MIOS32_IIC_BS_PORT));
#else
MIOS32_MIDI_SendDebugMessage("IIC error %d",MIOS32_IIC_LastErrorGet(FRAM_IIC_PORT));
#endif
}