int release_msg_env(msg_envelope *rel_msg)
{
int retCode;
atomic(ON);
retCode=k_release_msg_env(rel_msg);
atomic(OFF);
return retCode;
}
/*
* This function is called by the assembly STUB function
*/
void uart_i_process()
{
int i;
BYTE temp;
temp = SERIAL1_UCSR; // Ack the interrupt
volatile BYTE CharIn = ' ';
// There is data to be read
if( temp & 1 )
{
CharIn = SERIAL1_RD;
if (pong_mode)
{
MsgEnv* message = k_request_msg_env();
message->msg_type = CONSOLE_INPUT;
message->msg[0] = CharIn;
k_send_message(PONG_PID, message);
return;
}
if (CharIn == KB_LINE_END)
{
SERIAL1_IMR = 3;
SERIAL1_WD = '\n';
SERIAL1_IMR = 2;
#ifdef _CFSERVER_
inputIndex--;
#endif
InBuffer[inputIndex] = '\0';
inputIndex++;
MsgEnv* message = k_request_msg_env();
if (message != NULL)
{
for (i = 0; i < inputIndex; i++)
{
message->msg[i] = InBuffer[i];
}
message->msg_type = CONSOLE_INPUT;
k_send_message(CCI_PID, message);
}
inputIndex = 0;
}
else if (inputIndex < INPUT_BUFFER_SIZE - 2) // enter in a character
{
if (!hotkey(CharIn))
{
InBuffer[inputIndex] = CharIn;
inputIndex++;
SERIAL1_IMR = 3;
SERIAL1_WD = CharIn;
SERIAL1_IMR = 2;
}
}
}
// Check to see if data can be written out
else if ( temp & 4 )
{
if (outputIndex == 0 && output_print_char == FALSE)
{
MsgEnv* message = k_receive_message();
if (message != NULL)
{
i = 0;
while (message->msg[i] != '\0')
{
OutBuffer[i] = message->msg[i];
i++;
}
OutBuffer[i] = '\0';
output_print_char = TRUE;
if (message->msg_type == CONSOLE_OUTPUT)
{
k_release_msg_env(message);
}
else
{
message->msg_type = DISPLAY_ACK;
k_send_message(message->send_pid, message);
}
}
else
{
trace(ERROR, "Uart i process expected an env but received NULL");
}
}
if (output_print_char)
{
if (OutBuffer[outputIndex] == '\0')
{
outputIndex = 0;
output_print_char = FALSE;
MsgEnv* message = k_receive_message();
if (message != NULL)
{
i = 0;
while (message->msg[i] != '\0')
{
OutBuffer[i] = message->msg[i];
i++;
}
OutBuffer[i] = '\0';
output_print_char = TRUE;
if (message->msg_type == CONSOLE_OUTPUT)
{
k_release_msg_env(message);
}
else
{
message->msg_type = DISPLAY_ACK;
k_send_message(message->send_pid, message);
}
}
else
{
SERIAL1_IMR = 2; // Disable tx interrupt
}
}
else
{
SERIAL1_WD = OutBuffer[outputIndex]; // Write data
outputIndex++;
}
}
}
return;
}
