static bool
process_packet(bool backup, unsigned char *frame, int frame_len)
{
unsigned char tmp[IP_RECV_BUF_SIZE + ETHERNET_HDR_LEN];
if (!backup) {
return process_in(frame);
} else {
memcpy(tmp, frame, frame_len);
return process_in(tmp);
}
}
static void sync_link(gaelco_serial_state *state)
{
volatile buf_t *buf = state->m_in_ptr;
int breakme = 1;
do
{
shmem_lock(state->m_shmem);
process_in(state);
/* HACK: put some timing noise on the line */
if (buf->cnt + state->m_slack_cnt > state->m_out_ptr->cnt)
breakme = 0;
/* stop if not connected .. */
if ((state->m_out_ptr->stat & GAELCOSER_STATUS_RESET) != 0)
breakme = 0;
shmem_unlock(state->m_shmem);
} while (breakme);
state->m_slack_cnt++;
state->m_slack_cnt = (state->m_slack_cnt % LINK_SLACK) + LINK_SLACK_B;
shmem_lock(state->m_shmem);
state->m_out_ptr->stat &= ~GAELCOSER_STATUS_RESET;
shmem_unlock(state->m_shmem);
}