implemented ethernet TX firmware
Stefan Schuermans commited on 2012-03-06 18:59:32
Showing 3 changed files, with 49 additions and 6 deletions.
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@@ -74,3 +74,16 @@ int eth_rx(void **pptr, unsigned int *psz) |
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return 0; |
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} |
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+/** |
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+ * @brief transmit packet |
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+ * @param[out] ptr pointer to packet data |
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+ * @param[out] sz size of packet |
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+ */ |
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+void eth_tx(void *ptr, unsigned int sz) |
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+{
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+ eth_ptr[8] = (unsigned int)ptr; /* start */ |
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+ eth_ptr[9] = (unsigned int)ptr + sz; /* end */ |
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+ eth_ptr[10] = 1; /* set flag */ |
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+ while (eth_ptr[10] == 1); /* wait until processed */ |
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+} |
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+ |
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@@ -12,5 +12,12 @@ void eth_rx_init(void); |
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*/ |
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int eth_rx(void **pptr, unsigned int *psz); |
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+/** |
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+ * @brief transmit packet |
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+ * @param[out] ptr pointer to packet data |
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+ * @param[out] sz size of packet |
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+ */ |
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+void eth_tx(void *ptr, unsigned int sz); |
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+ |
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#endif /* #ifndef ETH_H */ |
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@@ -7,7 +7,8 @@ |
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//#define CFG_SIMULATION |
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-#define CFG_ETH |
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+#define CFG_ETH_RX |
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+#define CFG_ETH_TX |
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#define CFG_UART |
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#ifdef CFG_SIMULATION |
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# define CFG_UART_CHK |
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@@ -50,14 +51,33 @@ void switches(void) |
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void delay(void) |
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{
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unsigned int i; |
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-#ifdef CFG_ETH |
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- unsigned int sz; |
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+#ifdef CFG_ETH_RX |
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+ void *vptr; |
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unsigned char *ptr; |
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+ unsigned int sz; |
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+#endif |
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+#ifdef CFG_ETH_TX |
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+ static const unsigned char example_packet[] = {
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+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, /* destination MAC */ |
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+ 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* source MAC */ |
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+ 0x08, 0x00, /* ethertype: IP */ |
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+ 0x45, 0x00, 0x00, 0x36, /* IP header: ..., len */ |
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+ 0x12, 0x34, 0x00, 0x00, /* IP header: ..., not fragmented */ |
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+ 0x40, 0x11, 0x00, 0x00, /* IP header: ..., UDP, ... */ |
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+ 0x7F, 0x00, 0x00, 0x01, /* source IP */ |
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+ 0xFF, 0xFF, 0xFF, 0xFF, /* destination IP */ |
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+ 0x00, 0x01, 0x00, 0x01, /* UDP: source port, destination port */ |
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+ 0x00, 0x22, 0x00, 0x00, /* UDP: len, ... */ |
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+ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', |
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+ 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' |
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+ }; |
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#endif |
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+ |
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for (i = 0; i < 10; ++i) {
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switches(); |
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-#ifdef CFG_ETH |
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- while (eth_rx(&ptr, &sz)) {
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+#ifdef CFG_ETH_RX |
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+ while (eth_rx(&vptr, &sz)) {
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+ ptr = vptr; |
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#ifdef CFG_UART |
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for ( ; sz > 0; ptr++, sz--) |
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uart_tx(*ptr); |
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@@ -68,6 +88,9 @@ void delay(void) |
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cyc_cnt_delay_ms(20); |
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#endif |
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} |
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+#ifdef CFG_ETH_TX |
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+ eth_tx(example_packet, sizeof(example_packet)); |
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+#endif |
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} |
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int main() |
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@@ -83,7 +106,7 @@ int main() |
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leds_set_state(0x02); |
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-#ifdef CFG_ETH |
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+#ifdef CFG_ETH_RX |
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eth_rx_init(); |
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#endif |
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