void cliFunc_current( char* args )
{
print( NL );
info_msg("Current available: ");
printInt16( Output_current_available() );
print(" mA");
}
// Setup
inline void LED_setup()
{
// Register Scan CLI dictionary
CLI_registerDictionary( ledCLIDict, ledCLIDictName );
// Initialize I2C
I2C_setup();
// Zero out Frame Registers
// This needs to be done before disabling the hardware shutdown (or the leds will do undefined things)
LED_zeroPages( 0x0B, 1, 0x00, 0x0C ); // Control Registers
// Disable Hardware shutdown of ISSI chip (pull high)
GPIOB_PDDR |= (1<<16);
PORTB_PCR16 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOB_PSOR |= (1<<16);
// Clear LED Pages
LED_zeroPages( 0x00, 8, 0x00, 0xB4 ); // LED Registers
// Enable LEDs based upon mask
LED_sendPage( (uint8_t*)LED_ledEnableMask1, sizeof( LED_ledEnableMask1 ), 0 );
// Set default brightness
LED_sendPage( (uint8_t*)LED_defaultBrightness1, sizeof( LED_defaultBrightness1 ), 0 );
// Do not disable software shutdown of ISSI chip unless current is high enough
// Require at least 150 mA
// May be enabled/disabled at a later time
if ( Output_current_available() >= 150 )
{
// Disable Software shutdown of ISSI chip
LED_writeReg( 0x0A, 0x01, 0x0B );
}
}
uint8_t Connect_receive_IdReport( uint8_t id, uint16_t *pending_bytes, uint8_t uart_num )
{
dbug_print("IdReport");
// Check the directionality
if ( uart_num == UART_Master )
{
erro_print("Invalid IdRequest direction...");
}
// Track Id response if master
if ( Connect_master )
{
info_msg("Id Reported: ");
printHex( id );
print( NL );
// Check if this is the highest ID
if ( id > Connect_maxId )
{
Connect_maxId = id;
}
// Send available current
Connect_currentChange( Output_current_available() );
return 1;
}
// Propagate id if yet another slave
else
{
Connect_send_IdReport( id );
}
return 1;
}
// Update external current (mA)
// Triggers power change event
void Output_update_external_current( unsigned int current )
{
// Only signal if changed
if ( current == Output_ExtCurrent_Available )
return;
// Update external current
Output_ExtCurrent_Available = current;
unsigned int total_current = Output_current_available();
info_msg("External Available Current Changed. Total Available: ");
printInt32( total_current );
print(" mA" NL);
// Send new total current to the Scan Modules
Scan_currentChange( Output_current_available() );
}
// Update USB current (mA)
// Triggers power change event
void Output_update_usb_current( unsigned int current )
{
// Only signal if changed
if ( current == Output_USBCurrent_Available )
return;
// Update USB current
Output_USBCurrent_Available = current;
/* XXX Affects sleep states due to USB messages
unsigned int total_current = Output_current_available();
info_msg("USB Available Current Changed. Total Available: ");
printInt32( total_current );
print(" mA" NL);
*/
// Send new total current to the Scan Modules
Scan_currentChange( Output_current_available() );
}
uint8_t Connect_receive_CableCheck( uint8_t byte, uint16_t *pending_bytes, uint8_t uart_num )
{
// Check if this is the first byte
if ( *pending_bytes == BYTE_COUNT_START )
{
*pending_bytes = byte;
if ( Connect_debug )
{
dbug_msg("PENDING SET -> ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
}
// Verify byte
else
{
(*pending_bytes)--;
// The argument bytes are always 0xD2 (11010010)
if ( byte != CABLE_CHECK_ARG )
{
warn_print("Cable Fault!");
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableFaultsSlave++;
Connect_cableOkSlave = 0;
print(" Slave ");
}
else
{
// Lower current requirement during errors
// Half of USB negotiation minimum (50 mA)
// Only if this is not the master node
if ( Connect_id != 0 )
{
Output_update_external_current( 50 );
}
Connect_cableFaultsMaster++;
Connect_cableOkMaster = 0;
print(" Master ");
}
printHex( byte );
print( NL );
// Signal that the command should wait for a SYN again
return 1;
}
else
{
// Check which side of the chain
if ( uart_num == UART_Slave )
{
Connect_cableChecksSlave++;
}
else
{
// If we already have an Id, then set max current again
if ( Connect_id != 255 && Connect_id != 0 )
{
Output_update_external_current( Output_current_available() );
}
Connect_cableChecksMaster++;
}
}
}
// If cable check was successful, set cable ok
if ( *pending_bytes == 0 )
{
if ( uart_num == UART_Slave )
{
Connect_cableOkSlave = 1;
}
else
{
Connect_cableOkMaster = 1;
}
}
if ( Connect_debug )
{
dbug_msg("CABLECHECK RECEIVE - ");
printHex( byte );
print(" ");
printHex( *pending_bytes );
print( NL );
}
// Check whether the cable check has finished
return *pending_bytes == 0 ? 1 : 0;
}