void jsp_hardware_transact(void)
{
int bytes_to_send;
int bytes_received = 8; // can receive up to 8 bytes
char sendbuf[8];
char rcvbuf[8];
int i,j;
int ret;
debug("JSP about to transact; Tohw buf size now %i, fromhw buf size %i\n", jsp_tohw_count, jsp_fromhw_count);
// Get data to send, if any
bytes_to_send = jsp_tohw_count;
if(bytes_to_send > 8) bytes_to_send = 8;
j = jsp_tohw_rd_idx;
for(i = 0; i < bytes_to_send; i++)
{
sendbuf[i] = jsp_tohw_buf[j];
j = (j+1) % JSP_BUFFER_SIZE;
}
// Do the transaction
ret = dbg_serial_sndrcv(&bytes_to_send, sendbuf, &bytes_received, rcvbuf);
if(ret != APP_ERR_NONE)
{
fprintf(stderr, "Error in JSP transaction: %s\n", get_err_string(ret));
}
else
{
debug("Transacted, bytes sent = %i, received = %i\n", bytes_to_send, bytes_received);
// Adjust send buffer pointers as necessary - we may not have sent all 8 bytes
jsp_tohw_count -= bytes_to_send;
jsp_tohw_rd_idx = (jsp_tohw_rd_idx + bytes_to_send) % JSP_BUFFER_SIZE;
// Queue data received, if any, and adjust the pointers
for(i = 0; i < bytes_received; i++)
{
jsp_fromhw_buf[jsp_fromhw_wr_idx] = rcvbuf[i];
jsp_fromhw_wr_idx = (jsp_fromhw_wr_idx + 1) % JSP_BUFFER_SIZE;
jsp_fromhw_count++;
}
debug("JSP transacted; Tohw buf size now %i, fromhw buf size %i\n", jsp_tohw_count, jsp_fromhw_count);
}
}
void display_error(int err_val) {
unsigned int type = is_mc_error(err_val);
MessagePopup(get_mc_error_title(type), get_err_string(err_val, type));
}