#define TRACE(flag, command) ((flag) ? (command) : (void)0)
-#define missing(text) assert(!"feature is missing in this emulation: " text)
+#define missing(text) fprintf(stderr, "eepro100: feature is missing in this emulation: " text "\n")
#define MAX_ETH_FRAME_SIZE 1514
bool bit_s = ((command & 0x4000) != 0);
bool bit_i = ((command & 0x2000) != 0);
bool bit_nc = ((command & 0x0010) != 0);
+ bool success = true;
//~ bool bit_sf = ((command & 0x0008) != 0);
uint16_t cmd = command & 0x0007;
s->cu_offset = le32_to_cpu(tx.link);
TRACE(RXTX, logout
("transmit, TBD array address 0x%08x, TCB byte count 0x%04x, TBD count %u\n",
tbd_array, tcb_bytes, tx.tbd_count));
- assert(!bit_nc);
+
+ if (bit_nc) {
+ missing("CmdTx: NC = 0");
+ success = false;
+ break;
+ }
//~ assert(!bit_sf);
- assert(tcb_bytes <= 2600);
+ if (tcb_bytes > 2600) {
+ logout("TCB byte count too large, using 2600\n");
+ tcb_bytes = 2600;
+ }
/* Next assertion fails for local configuration. */
//~ assert((tcb_bytes > 0) || (tbd_array != 0xffffffff));
if (!((tcb_bytes > 0) || (tbd_array != 0xffffffff))) {
uint8_t tbd_count = 0;
if (device_supports_eTxCB(s) && !(s->configuration[6] & BIT(4))) {
/* Extended Flexible TCB. */
- assert(tcb_bytes == 0);
for (; tbd_count < 2; tbd_count++) {
uint32_t tx_buffer_address = ldl_phys(tbd_address);
uint16_t tx_buffer_size = lduw_phys(tbd_address + 4);
break;
default:
missing("undefined command");
+ success = false;
+ break;
}
- /* Write new status (success). */
- stw_phys(cb_address, status | 0x8000 | 0x2000);
+ /* Write new status. */
+ stw_phys(cb_address, status | 0x8000 | (success ? 0x2000 : 0));
if (bit_i) {
/* CU completed action. */
eepro100_cx_interrupt(s);
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
/* TODO: check multiple IA bit. */
- assert(!(s->configuration[20] & BIT(6)));
+ if (s->configuration[20] & BIT(6)) {
+ missing("Multiple IA bit");
+ return -1;
+ }
if (s->configuration[8] & 0x80) {
/* CSMA is disabled. */
/* Multicast frame. */
TRACE(RXTX, logout("%p received multicast, len=%zu\n", s, size));
/* TODO: check multicast all bit. */
- assert(!(s->configuration[21] & BIT(3)));
+ if (s->configuration[21] & BIT(3)) {
+ missing("Multicast All bit");
+ }
int mcast_idx = compute_mcast_idx(buf);
if (!(s->mult[mcast_idx >> 3] & (1 << (mcast_idx & 7)))) {
return size;
offsetof(eepro100_rx_t, packet));
uint16_t rfd_command = le16_to_cpu(rx.command);
uint16_t rfd_size = le16_to_cpu(rx.size);
- assert(size <= rfd_size);
+
+ if (size > rfd_size) {
+ logout("Receive buffer (%" PRId16 " bytes) too small for data "
+ "(%zu bytes); data truncated\n", rfd_size, size);
+ size = rfd_size;
+ }
if (size < 64) {
rfd_status |= 0x0080;
}
/* Early receive interrupt not supported. */
//~ eepro100_er_interrupt(s);
/* Receive CRC Transfer not supported. */
- assert(!(s->configuration[18] & 4));
+ if (s->configuration[18] & 4) {
+ missing("Receive CRC Transfer");
+ return -1;
+ }
/* TODO: check stripping enable bit. */
//~ assert(!(s->configuration[17] & 1));
cpu_physical_memory_write(s->ru_base + s->ru_offset +
s->ru_offset = le32_to_cpu(rx.link);
if (rfd_command & 0x8000) {
/* EL bit is set, so this was the last frame. */
- assert(0);
+ logout("receive: Running out of frames\n");
+ set_ru_state(s, ru_suspended);
}
if (rfd_command & 0x4000) {
/* S bit is set. */