struct transfer_record *
list_transfers(dma_instruction *program)
{
struct transfer_record *false_head, *true_head, *tail;
false_head = malloc(sizeof(struct transfer_record));
false_head->next = NULL;
tail = false_head;
struct dma_thread thread;
thread.dmat_program_counter =
thread.dmat_external_program_counter = program;
// Use 0 because we are interested in relative offsets.
thread.dmat_source = thread.dmat_external_source = 0;
thread.dmat_destination = thread.dmat_external_destination = 0;
thread.dmat_state = DMAM_RUNNING;
while (thread.dmat_state != DMAM_STOPPED) {
dma_execute_instruction(&thread, record_transfer, tail);
if (tail->next != NULL) {
tail = tail->next;
}
}
true_head = false_head->next;
free(false_head);
return true_head;
}
static bool inline dma_start_thread(uint8_t thread_id, uint8_t* program_addr)
{
uint8_t go_instr[] = { DMAGO(thread_id, ns, program_addr) };
dma_execute_instruction (&go_instr[0]);
return true;
}
