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Added MDNS and driver support for multicast

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robert authored and Sergio R. Caprile committed 2025-04-22 12:55:15 -03:00
1 parent b44193780e
commit 6f697db49d
31 files changed
+766 -168
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src/drivers/xmc7.c
+11 -5
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@@ -66,8 +66,8 @@ static uint8_t s_rxbuf[ETH_DESC_CNT][ETH_PKT_SIZE];
static uint8_t s_txbuf[ETH_DESC_CNT][ETH_PKT_SIZE];
static uint32_t s_rxdesc[ETH_DESC_CNT][ETH_DS] MG_8BYTE_ALIGNED;
static uint32_t s_txdesc[ETH_DESC_CNT][ETH_DS] MG_8BYTE_ALIGNED;
static uint8_t s_txno MG_8BYTE_ALIGNED; // Current TX descriptor
static uint8_t s_rxno MG_8BYTE_ALIGNED; // Current RX descriptor
static uint8_t s_txno MG_8BYTE_ALIGNED; // Current TX descriptor
static uint8_t s_rxno MG_8BYTE_ALIGNED; // Current RX descriptor
static struct mg_tcpip_if *s_ifp; // MIP interface
enum { MG_PHY_ADDR = 0, MG_PHYREG_BCR = 0, MG_PHYREG_BSR = 1 };
@@ -104,8 +104,7 @@ static bool mg_tcpip_driver_xmc7_init(struct mg_tcpip_if *ifp) {
// set NSP change, ignore RX FCS, data bus width, clock rate
// frame length 1536, full duplex, speed
ETH0->NETWORK_CONFIG = MG_BIT(29) | MG_BIT(26) | MG_BIT(21) |
((cr & 7) << 18) | MG_BIT(8) | MG_BIT(4) | MG_BIT(1) |
MG_BIT(0);
((cr & 7) << 18) | MG_BIT(8) | MG_BIT(1) | MG_BIT(0);
// config DMA settings: Force TX burst, Discard on Error, set RX buffer size
// to 1536, TX_PBUF_SIZE, RX_PBUF_SIZE, AMBA_BURST_LENGTH
@@ -142,6 +141,13 @@ static bool mg_tcpip_driver_xmc7_init(struct mg_tcpip_if *ifp) {
ifp->mac[3] << 24 | ifp->mac[2] << 16 | ifp->mac[1] << 8 | ifp->mac[0];
ETH0->SPEC_ADD1_TOP = ifp->mac[5] << 8 | ifp->mac[4];
#if MG_TCPIP_MCAST
// set multicast MAC address
ETH0->SPEC_ADD2_BOTTOM = mcast_addr[3] << 24 | mcast_addr[2] << 16 |
mcast_addr[1] << 8 | mcast_addr[0];
ETH0->SPEC_ADD2_TOP = mcast_addr[5] << 8 | mcast_addr[4];
#endif
// enable MDIO, TX, RX
ETH0->NETWORK_CONTROL = MG_BIT(4) | MG_BIT(3) | MG_BIT(2);
@@ -220,7 +226,7 @@ static bool mg_tcpip_driver_xmc7_poll(struct mg_tcpip_if *ifp, bool s1) {
void ETH_IRQHandler(void) {
uint32_t irq_status = ETH0->INT_STATUS;
if (irq_status & MG_BIT(1)) {
for (uint8_t i = 0; i < 10; i++) { // read as they arrive, but not forever
for (uint8_t i = 0; i < 10; i++) { // read as they arrive, but not forever
if ((s_rxdesc[s_rxno][0] & MG_BIT(0)) == 0) break;
size_t len = s_rxdesc[s_rxno][1] & (MG_BIT(13) - 1);
mg_tcpip_qwrite(s_rxbuf[s_rxno], len, s_ifp);