uint32_t read_serial(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) {
if (size < 1) {
return 0;
}
memset(buffer, 0x00, 1);
uint32_t collected = 0;
while (collected < size) {
while (!serial_rcvd((int)node->device)) {
switch_task(1);
}
debug_print(NOTICE, "Data received from TTY");
buffer[collected] = serial_recv((int)node->device);
collected++;
}
return collected;
}
static int8_t serial_recv(int32_t device)
{
while (serial_rcvd(device) == 0);
return inportb(device);
}
static char serial_recv(int device) {
while (serial_rcvd(device) == 0) ;
return inportb(device);
}
