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Line 49... |
#include "line-buffer.h"
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#include "line-buffer.h"
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#include "packet.h"
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#include "packet.h"
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#include "ethmac.h"
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#include "ethmac.h"
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void close_link (void)
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/* open a link */
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void init_ethmac()
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{
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{
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/* Disable EthMac interrupts in Ethmac core */
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/* initialize the packet rx buffer */
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*(unsigned int *) ( ADR_ETHMAC_INT_MASK ) = 0x0;
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init_packet();
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/* Disable Ethmac interrupt in interrupt controller */
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*(unsigned int *) ( ADR_AMBER_IC_IRQ0_ENABLECLR ) = 0x100;
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/* Disable Rx & Tx - MODER Register
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[15] = Add pads to short frames
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[13] = CRCEN
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[10] = Enable full duplex
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[7] = loopback
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[5] = 1 for promiscuous, 0 rx only frames that match mac address
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[1] = txen
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[0] = rxen */
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*(unsigned int *) ( ADR_ETHMAC_MODER ) = 0xa420;
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/* Put the PHY into reset */
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phy_rst(0); /* reset is active low */
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/* open ethernet port and wait for connection requests
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keep trying forever */
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while (!open_link());
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}
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}
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/* return 1 if link comes up */
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/* return 1 if link comes up */
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int open_link (void)
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int open_link (void)
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{
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{
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int packet;
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int packet;
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int n;
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int n;
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Line 79... |
*(unsigned int *) ( ADR_ETHMAC_MAC_ADDR0 ) = d32;
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*(unsigned int *) ( ADR_ETHMAC_MAC_ADDR0 ) = d32;
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d32 = self_g.mac[0]<<8|self_g.mac[1];
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d32 = self_g.mac[0]<<8|self_g.mac[1];
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*(unsigned int *) ( ADR_ETHMAC_MAC_ADDR1 ) = d32;
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*(unsigned int *) ( ADR_ETHMAC_MAC_ADDR1 ) = d32;
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if (!config_phy()) return 0;
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if (!init_phy())
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return 0;
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/* Write the Receive Packet Buffer Descriptor */
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/* Write the Receive Packet Buffer Descriptor */
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/* Buffer Pointer */
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/* Buffer Pointer */
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for (packet=0; packet<ETHMAC_RX_BUFFERS; packet++) {
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for (packet=0; packet<ETHMAC_RX_BUFFERS; packet++) {
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*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0x204 + packet*8 ) = ETHMAC_RX_BUFFER + packet * 0x1000;
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*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0x204 + packet*8 ) = ETHMAC_RX_BUFFER + packet * 0x1000;
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Line 129... |
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return 1;
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return 1;
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}
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}
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void close_link (void)
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{
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/* Disable EthMac interrupts in Ethmac core */
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*(unsigned int *) ( ADR_ETHMAC_INT_MASK ) = 0x0;
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/* Disable Ethmac interrupt in interrupt controller */
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*(unsigned int *) ( ADR_AMBER_IC_IRQ0_ENABLECLR ) = 0x100;
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/* Disable Rx & Tx - MODER Register
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[15] = Add pads to short frames
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[13] = CRCEN
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[10] = Enable full duplex
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[7] = loopback
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[5] = 1 for promiscuous, 0 rx only frames that match mac address
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[1] = txen
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[0] = rxen */
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*(unsigned int *) ( ADR_ETHMAC_MODER ) = 0xa420;
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/* Put the PHY into reset */
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phy_rst(0); /* reset is active low */
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}
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void tx_packet(int len)
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void tx_packet(int len)
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{
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{
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unsigned int status = 0;
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unsigned int status = 0;
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Line 183... |
*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0 ) = len<<16 | 0xf800;
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*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0 ) = len<<16 | 0xf800;
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}
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}
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/* returns 1 if link comes up */
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/* returns 1 if link comes up */
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int config_phy (void)
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int init_phy (void)
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{
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{
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int addr;
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int addr;
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int bmcr;
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int bmcr;
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int stat;
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int stat;
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int phy_id;
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int phy_id;
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int link_up = 1;
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int link_up = 1;
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time_t* link_timer;
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time_t* link_timer;
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link_timer = init_timer();
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link_timer = new_timer();
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/* Bring PHY out of reset */
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/* Bring PHY out of reset */
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phy_rst(1); /* reset is active low */
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phy_rst(1); /* reset is active low */
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/* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
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/* Discover phy addr by searching addrs in order {1,0,2,..., 31} */
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Line 316... |
for (buffer=0; buffer<ETHMAC_RX_BUFFERS; buffer++) {
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for (buffer=0; buffer<ETHMAC_RX_BUFFERS; buffer++) {
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rx_buf_status = *(volatile unsigned int *) ( ADR_ETHMAC_BDBASE + 0x200 + buffer*8 );
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rx_buf_status = *(volatile unsigned int *) ( ADR_ETHMAC_BDBASE + 0x200 + buffer*8 );
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if ((rx_buf_status & 0x8000) == 0) {
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if ((rx_buf_status & 0x8000) == 0) {
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parse_rx_packet((char*)(ETHMAC_RX_BUFFER+buffer*0x1000), rx_packet_g);
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parse_rx_packet((char*)(ETHMAC_RX_BUFFER+buffer*0x1000), rx_packet_g);
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/* set empty flag again */
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/* set empty flag again */
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if (buffer == ETHMAC_RX_BUFFERS-1) /* last receive buffer ? */
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if (buffer == ETHMAC_RX_BUFFERS-1) /* last receive buffer ? */
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*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0x200 + buffer*8 ) = 0x0000e000;
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*(unsigned int *) ( ADR_ETHMAC_BDBASE + 0x200 + buffer*8 ) = 0x0000e000;
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