Major formatting cleanups. If I'm going to work on this driver, I want to be
able to read it.
This commit is contained in:
bjh21
parent
b9d2d53fb8
commit
e74a0fd322
@ -1,4 +1,4 @@
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/* $NetBSD: if_ea.c,v 1.3 2000/07/22 21:30:54 bjh21 Exp $ */
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/* $NetBSD: if_ea.c,v 1.4 2000/08/07 22:21:44 bjh21 Exp $ */
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/*
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* Copyright (c) 1995 Mark Brinicombe
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@ -203,8 +203,10 @@ ea_dump_buffer(sc, offset)
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addr = offset;
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do {
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WriteShort(sc->sc_iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_FIFO_READ);
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(sc->sc_iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_FIFO_READ);
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WriteShort(iobase + EA_8005_CONFIG1,
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sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(iobase + EA_8005_DMA_ADDR, addr);
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ptr = ReadShort(iobase + EA_8005_BUFWIN);
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@ -244,16 +246,18 @@ eaprobe(parent, cf, aux)
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struct podulebus_attach_args *pa = (void *)aux;
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u_int iobase;
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/* Look for a network slot interface */
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/* Look for a network slot interface */
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if ((matchpodule(pa, MANUFACTURER_ATOMWIDE, PODULE_ATOMWIDE_ETHER3, -1) == 0)
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&& (matchpodule(pa, MANUFACTURER_ACORN, PODULE_ACORN_ETHER3XXX, -1) == 0)
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if ((matchpodule(pa, MANUFACTURER_ATOMWIDE,
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PODULE_ATOMWIDE_ETHER3, -1) == 0)
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&& (matchpodule(pa, MANUFACTURER_ACORN,
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PODULE_ACORN_ETHER3XXX, -1) == 0)
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&& (matchpodule(pa, MANUFACTURER_ANT, PODULE_ANT_ETHER3, -1) == 0))
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return(0);
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iobase = pa->pa_memc_h + EA_8005_BASE;
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/* Reset it - Why here ? */
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/* Reset it - Why here ? */
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WriteShort(iobase + EA_8005_CONFIG2, EA_CFG2_RESET);
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delay(100);
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@ -308,7 +312,7 @@ eaattach(parent, self, aux)
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sc->sc_irqclaimed = 0;
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/* Claim a podule interrupt */
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/* Claim a podule interrupt */
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sc->sc_ih = podulebus_irq_establish(sc->sc_dev.dv_parent,
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pa->pa_slotnum, IPL_NET, eaintr, sc);
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@ -400,14 +404,16 @@ ea_ramtest(sc)
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ea_writebuf(sc, NULL, 0x0000, 0);
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for (loop = 0; loop < EA_BUFFER_SIZE; loop += 2)
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WriteShort(iobase + EA_8005_BUFWIN, loop ^ (EA_BUFFER_SIZE - 1));
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WriteShort(iobase + EA_8005_BUFWIN,
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loop ^ (EA_BUFFER_SIZE - 1));
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/* Set the read start address and verify the pattern */
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ea_readbuf(sc, NULL, 0x0000, 0);
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for (loop = 0; loop < EA_BUFFER_SIZE; loop += 2)
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if (ReadShort(iobase + EA_8005_BUFWIN) != (loop ^ (EA_BUFFER_SIZE - 1)))
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if (ReadShort(iobase + EA_8005_BUFWIN) !=
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(loop ^ (EA_BUFFER_SIZE - 1)))
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++sum;
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if (sum != 0)
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@ -465,12 +471,11 @@ void
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ea_claimirq(sc)
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struct ea_softc *sc;
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{
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/* Have we claimed one already ? */
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/* Have we claimed one already ? */
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if (sc->sc_irqclaimed) return;
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/* Claim it */
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/* Claim it */
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irq_enable(sc->sc_ih);
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sc->sc_irqclaimed = 1;
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@ -483,8 +488,8 @@ void
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ea_releaseirq(sc)
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struct ea_softc *sc;
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{
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/* Have we claimed one ? */
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/* Have we claimed one ? */
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if (!sc->sc_irqclaimed) return;
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irq_disable(sc->sc_ih);
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@ -505,7 +510,7 @@ ea_reinit(sc)
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dprintf(("eareinit()\n"));
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/* Stop and reinitialise the interface */
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/* Stop and reinitialise the interface */
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s = splnet();
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ea_stop(sc);
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@ -534,8 +539,7 @@ ea_stoptx(sc)
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if (!(status & EA_STATUS_TX_ON))
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return(0);
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/* Stop any tx and wait for confirmation */
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/* Stop any tx and wait for confirmation */
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_TX_OFF);
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timeout = 20000;
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@ -545,9 +549,9 @@ ea_stoptx(sc)
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if (timeout == 0)
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dprintf(("ea_stoptx: timeout waiting for tx termination\n"));
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/* Clear any pending tx interrupt */
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_TX_INTACK);
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/* Clear any pending tx interrupt */
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WriteShort(iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_TX_INTACK);
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return(1);
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}
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@ -572,7 +576,7 @@ ea_stoprx(sc)
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if (!(status & EA_STATUS_RX_ON))
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return(0);
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/* Stop any rx and wait for confirmation */
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/* Stop any rx and wait for confirmation */
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_RX_OFF);
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@ -583,9 +587,10 @@ ea_stoprx(sc)
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if (timeout == 0)
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dprintf(("ea_stoprx: timeout waiting for rx termination\n"));
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/* Clear any pending rx interrupt */
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/* Clear any pending rx interrupt */
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_RX_INTACK);
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WriteShort(iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_RX_INTACK);
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return(1);
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}
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@ -603,29 +608,24 @@ ea_stop(sc)
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dprintf(("ea_stop()\n"));
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/* Stop all IO */
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/* Stop all IO */
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ea_stoptx(sc);
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ea_stoprx(sc);
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/* Disable rx and tx interrupts */
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/* Disable rx and tx interrupts */
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sc->sc_command &= (EA_CMD_RX_INTEN | EA_CMD_TX_INTEN);
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/* Clear any pending interrupts */
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/* Clear any pending interrupts */
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command
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| EA_CMD_RX_INTACK | EA_CMD_TX_INTACK | EA_CMD_DMA_INTACK
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| EA_CMD_BW_INTACK);
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dprintf(("st=%08x", ReadShort(iobase + EA_8005_STATUS)));
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/* Release the irq */
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/* Release the irq */
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ea_releaseirq(sc);
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/* Cancel any watchdog timer */
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sc->sc_ethercom.ec_if.if_timer = 0;
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sc->sc_ethercom.ec_if.if_timer = 0;
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}
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@ -642,7 +642,7 @@ ea_chipreset(sc)
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dprintf(("ea_chipreset()\n"));
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/* Reset the controller. Min of 4us delay here */
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/* Reset the controller. Min of 4us delay here */
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WriteShort(iobase + EA_8005_CONFIG2, EA_CFG2_RESET);
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delay(100);
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@ -669,33 +669,30 @@ ea_hardreset(sc)
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dprintf(("ea_hardreset()\n"));
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/* Stop any activity */
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/* Stop any activity */
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ea_stoptx(sc);
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ea_stoprx(sc);
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ea_chipreset(sc);
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/* Set up defaults for the registers */
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/* Set up defaults for the registers */
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sc->sc_config2 = 0;
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WriteShort(iobase + EA_8005_CONFIG2, sc->sc_config2);
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sc->sc_command = 0x00;
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sc->sc_config1 = EA_CFG1_STATION_ADDR0 | EA_CFG1_DMA_BSIZE_1 | EA_CFG1_DMA_BURST_CONT;
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sc->sc_config1 = EA_CFG1_STATION_ADDR0 | EA_CFG1_DMA_BSIZE_1 |
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EA_CFG1_DMA_BURST_CONT;
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1);
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command);
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WriteShort(iobase + EA_8005_CONFIG1, EA_BUFCODE_TX_EAP);
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WriteShort(iobase + EA_8005_BUFWIN, ((EA_TX_BUFFER_SIZE >> 8) - 1));
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/* Write the station address - the receiver must be off */
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/* Write the station address - the receiver must be off */
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WriteShort(sc->sc_iobase + EA_8005_CONFIG1,
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sc->sc_config1 | EA_BUFCODE_STATION_ADDR0);
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for (loop = 0; loop < ETHER_ADDR_LEN; ++loop) {
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for (loop = 0; loop < ETHER_ADDR_LEN; ++loop)
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WriteByte(sc->sc_iobase + EA_8005_BUFWIN,
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LLADDR(ifp->if_sadl)[loop]);
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}
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LLADDR(ifp->if_sadl)[loop]);
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}
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@ -721,26 +718,34 @@ ea_writebuf(sc, buf, addr, len)
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dprintf(("writebuf: st=%04x\n", ReadShort(iobase + EA_8005_STATUS)));
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/* If we have a valid buffer address set the buffer pointer and direction */
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/*
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* If we have a valid buffer address set the buffer pointer and
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* direction.
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*/
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if (addr >= 0 && addr < EA_BUFFER_SIZE) {
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_FIFO_WRITE);
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WriteShort(iobase + EA_8005_CONFIG1,
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sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_FIFO_WRITE);
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/* Should wait here of FIFO empty flag */
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timeout = 20000;
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while ((ReadShort(iobase + EA_8005_STATUS) & EA_STATUS_FIFO_EMPTY) == 0 && --timeout > 0);
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while ((ReadShort(iobase + EA_8005_STATUS) &
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EA_STATUS_FIFO_EMPTY) == 0 &&
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--timeout > 0);
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WriteShort(iobase + EA_8005_DMA_ADDR, addr);
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}
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for (loop = 0; loop < len; loop += 2)
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WriteShort(iobase + EA_8005_BUFWIN, buf[loop] | buf[loop + 1] << 8);
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WriteShort(iobase + EA_8005_BUFWIN,
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buf[loop] | buf[loop + 1] << 8);
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/* if (len > 0)
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outsw(iobase + EA_8005_BUFWIN, buf, len / 2);*/
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#if 0
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if (len > 0)
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outsw(iobase + EA_8005_BUFWIN, buf, len / 2);
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#endif
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}
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@ -765,32 +770,47 @@ ea_readbuf(sc, buf, addr, len)
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int word;
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int timeout;
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dprintf(("readbuf: st=%04x addr=%04x len=%d\n", ReadShort(iobase + EA_8005_STATUS), addr, len));
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/* If we have a valid buffer address set the buffer pointer and direction */
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dprintf(("readbuf: st=%04x addr=%04x len=%d\n",
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ReadShort(iobase + EA_8005_STATUS), addr, len));
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/*
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* If we have a valid buffer address set the buffer pointer and
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* direction.
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*/
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if (addr >= 0 && addr < EA_BUFFER_SIZE) {
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if ((ReadShort(iobase + EA_8005_STATUS) & EA_STATUS_FIFO_DIR) == 0) {
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if ((ReadShort(iobase + EA_8005_STATUS) &
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EA_STATUS_FIFO_DIR) == 0) {
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/* Should wait here of FIFO empty flag */
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timeout = 20000;
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while ((ReadShort(iobase + EA_8005_STATUS) & EA_STATUS_FIFO_EMPTY) == 0 && --timeout > 0);
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while ((ReadShort(iobase + EA_8005_STATUS) &
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EA_STATUS_FIFO_EMPTY) == 0 &&
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--timeout > 0)
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continue;
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}
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_FIFO_WRITE);
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WriteShort(iobase + EA_8005_CONFIG1,
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sc->sc_config1 | EA_BUFCODE_LOCAL_MEM);
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WriteShort(iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_FIFO_WRITE);
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/* Should wait here of FIFO empty flag */
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timeout = 20000;
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while ((ReadShort(iobase + EA_8005_STATUS) & EA_STATUS_FIFO_EMPTY) == 0 && --timeout > 0);
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while ((ReadShort(iobase + EA_8005_STATUS) &
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EA_STATUS_FIFO_EMPTY) == 0 &&
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--timeout > 0)
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continue;
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WriteShort(iobase + EA_8005_DMA_ADDR, addr);
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_FIFO_READ);
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WriteShort(iobase + EA_8005_COMMAND,
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sc->sc_command | EA_CMD_FIFO_READ);
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/* Should wait here of FIFO full flag */
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timeout = 20000;
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while ((ReadShort(iobase + EA_8005_STATUS) & EA_STATUS_FIFO_FULL) == 0 && --timeout > 0);
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while ((ReadShort(iobase + EA_8005_STATUS) &
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EA_STATUS_FIFO_FULL) == 0 && --timeout > 0)
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continue;
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}
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@ -806,7 +826,8 @@ ea_readbuf(sc, buf, addr, len)
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/*
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* Initialize interface.
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*
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* This should leave the interface in a state for packet reception and transmission
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* This should leave the interface in a state for packet reception and
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* transmission.
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*/
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static int
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@ -821,7 +842,7 @@ ea_init(sc)
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s = splnet();
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/* Grab an irq */
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/* Grab an irq */
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ea_claimirq(sc);
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@ -829,30 +850,32 @@ ea_init(sc)
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ea_hardreset(sc);
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/* Configure rx. */
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/* Configure rx. */
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dprintf(("Configuring rx...\n"));
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if (ifp->if_flags & IFF_PROMISC)
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sc->sc_config1 = EA_CFG1_PROMISCUOUS;
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else
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sc->sc_config1 = EA_CFG1_BROADCAST;
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sc->sc_config1 |= EA_CFG1_DMA_BSIZE_8 | EA_CFG1_STATION_ADDR0 | EA_CFG1_DMA_BURST_CONT;
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sc->sc_config1 |= EA_CFG1_DMA_BSIZE_8 | EA_CFG1_STATION_ADDR0 |
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EA_CFG1_DMA_BURST_CONT;
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1);
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/* Configure TX. */
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/* Configure TX. */
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dprintf(("Configuring tx...\n"));
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WriteShort(iobase + EA_8005_CONFIG1, sc->sc_config1 | EA_BUFCODE_TX_EAP);
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WriteShort(iobase + EA_8005_CONFIG1,
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sc->sc_config1 | EA_BUFCODE_TX_EAP);
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WriteShort(iobase + EA_8005_BUFWIN, ((EA_TX_BUFFER_SIZE >> 8) - 1));
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WriteShort(iobase + EA_8005_TX_PTR, 0x0000);
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sc->sc_config2 |= EA_CFG2_OUTPUT;
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WriteShort(iobase + EA_8005_CONFIG2, sc->sc_config2);
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/* Place a NULL header at the beginning of the transmit area */
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/* Place a NULL header at the beginning of the transmit area */
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ea_writebuf(sc, NULL, 0x0000, 0);
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WriteShort(iobase + EA_8005_BUFWIN, 0x0000);
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@ -861,31 +884,33 @@ ea_init(sc)
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sc->sc_command |= EA_CMD_TX_INTEN;
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command);
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/* Setup the Rx pointers */
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/* Setup the Rx pointers */
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sc->sc_rx_ptr = EA_TX_BUFFER_SIZE;
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WriteShort(iobase + EA_8005_RX_PTR, sc->sc_rx_ptr);
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WriteShort(iobase + EA_8005_RX_END, (sc->sc_rx_ptr >> 8));
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/* Place a NULL header at the beginning of the receive area */
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/* Place a NULL header at the beginning of the receive area */
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ea_writebuf(sc, NULL, sc->sc_rx_ptr, 0);
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WriteShort(iobase + EA_8005_BUFWIN, 0x0000);
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WriteShort(iobase + EA_8005_BUFWIN, 0x0000);
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/* Turn on Rx */
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/* Turn on Rx */
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sc->sc_command |= EA_CMD_RX_INTEN;
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WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_RX_ON);
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/* Set flags appropriately. */
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ifp->if_flags |= IFF_RUNNING;
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ifp->if_flags &= ~IFF_OACTIVE;
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dprintf(("init: st=%04x\n", ReadShort(iobase + EA_8005_STATUS)));
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/* And start output. */
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ea_start(ifp);
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@ -945,12 +970,10 @@ eatxpacket(sc)
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ifp = &sc->sc_ethercom.ec_if;
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/* Dequeue the next datagram. */
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/* Dequeue the next datagram. */
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IF_DEQUEUE(&ifp->if_snd, m0);
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/* If there's nothing to send, return. */
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|
||||
/* If there's nothing to send, return. */
|
||||
if (!m0) {
|
||||
ifp->if_flags &= ~IFF_OACTIVE;
|
||||
sc->sc_config2 |= EA_CFG2_OUTPUT;
|
||||
@ -971,12 +994,12 @@ eatxpacket(sc)
|
||||
dprintf(("Tx new packet\n"));
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Copy the datagram to the temporary buffer.
|
||||
*
|
||||
* Eventually we may as well just copy straight into the interface buffer
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copy the datagram to the temporary buffer.
|
||||
*
|
||||
* Eventually we may as well just copy straight into the
|
||||
* interface buffer.
|
||||
*/
|
||||
len = 0;
|
||||
for (m = m0; m; m = m->m_next) {
|
||||
if (m->m_len == 0)
|
||||
@ -986,8 +1009,8 @@ eatxpacket(sc)
|
||||
}
|
||||
m_freem(m0);
|
||||
|
||||
/* If packet size is odd round up to the next 16 bit boundry */
|
||||
|
||||
/* If packet size is odd round up to the next 16 bit boundry */
|
||||
if (len % 2)
|
||||
++len;
|
||||
|
||||
@ -996,10 +1019,10 @@ eatxpacket(sc)
|
||||
if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN))
|
||||
log(LOG_WARNING, "ea: oversize packet = %d bytes\n", len);
|
||||
|
||||
/* Ok we now have a packet len bytes long in our packet buffer */
|
||||
|
||||
/* Transfer datagram to board. */
|
||||
/* Ok we now have a packet len bytes long in our packet buffer */
|
||||
|
||||
/* Transfer datagram to board. */
|
||||
#ifdef EA_TX_DEBUG
|
||||
dprintf(("ea: xfr pkt length=%d...\n", len));
|
||||
|
||||
@ -1012,20 +1035,24 @@ eatxpacket(sc)
|
||||
|
||||
/* dprintf(("st=%04x\n", ReadShort(iobase + EA_8005_STATUS)));*/
|
||||
|
||||
/* Write the packet to the interface buffer, skipping the packet header */
|
||||
|
||||
/*
|
||||
* Write the packet to the interface buffer, skipping the
|
||||
* packet header
|
||||
*/
|
||||
ea_writebuf(sc, sc->sc_pktbuf, 0x0004, len);
|
||||
|
||||
/* Follow it with a NULL packet header */
|
||||
|
||||
/* Follow it with a NULL packet header */
|
||||
WriteShort(iobase + EA_8005_BUFWIN, 0x00);
|
||||
WriteShort(iobase + EA_8005_BUFWIN, 0x00);
|
||||
|
||||
/* Write the packet header */
|
||||
|
||||
/* Write the packet header */
|
||||
ea_writebuf(sc, NULL, 0x0000, 0);
|
||||
|
||||
WriteShort(iobase + EA_8005_BUFWIN, (((len+4) & 0xff00) >> 8) | (((len+4) & 0xff) << 8));
|
||||
WriteShort(iobase + EA_8005_BUFWIN,
|
||||
(((len+4) & 0xff00) >> 8) | (((len+4) & 0xff) << 8));
|
||||
WriteShort(iobase + EA_8005_BUFWIN, 0x00aa);
|
||||
|
||||
WriteShort(iobase + EA_8005_TX_PTR, 0x0000);
|
||||
@ -1036,8 +1063,8 @@ eatxpacket(sc)
|
||||
ea_dump_buffer(sc, 0);
|
||||
#endif
|
||||
|
||||
/* Now transmit the datagram. */
|
||||
|
||||
/* Now transmit the datagram. */
|
||||
/* dprintf(("st=%04x\n", ReadShort(iobase + EA_8005_STATUS)));*/
|
||||
WriteShort(iobase + EA_8005_COMMAND, sc->sc_command | EA_CMD_TX_ON);
|
||||
#ifdef EA_TX_DEBUG
|
||||
@ -1064,19 +1091,18 @@ eaintr(arg)
|
||||
handled = 0;
|
||||
dprintf(("eaintr: "));
|
||||
|
||||
/* Get the controller status */
|
||||
|
||||
/* Get the controller status */
|
||||
status = ReadShort(iobase + EA_8005_STATUS);
|
||||
dprintf(("st=%04x ", status));
|
||||
|
||||
/* Tx interrupt ? */
|
||||
|
||||
/* Tx interrupt ? */
|
||||
if (status & EA_STATUS_TX_INT) {
|
||||
dprintf(("txint "));
|
||||
handled = 1;
|
||||
|
||||
/* Acknowledge the interrupt */
|
||||
|
||||
/* Acknowledge the interrupt */
|
||||
WriteShort(iobase + EA_8005_COMMAND, sc->sc_command
|
||||
| EA_CMD_TX_INTACK);
|
||||
|
||||
@ -1087,34 +1113,34 @@ eaintr(arg)
|
||||
#endif
|
||||
txstatus = (txstatus >> 24) & 0xff;
|
||||
|
||||
/*
|
||||
* Did it succeed ? Did we collide ?
|
||||
*
|
||||
* The exact proceedure here is not clear. We should get
|
||||
* an interrupt on a sucessfull tx or on a collision.
|
||||
* The done flag is set after successfull tx or 16 collisions
|
||||
* We should thus get a interrupt for each of collision
|
||||
* and the done bit should not be set. However it does appear
|
||||
* to be set at the same time as the collision bit ...
|
||||
*
|
||||
* So we will count collisions and output errors and will assume
|
||||
* that if the done bit is set the packet was transmitted.
|
||||
* Stats may be wrong if 16 collisions occur on a packet
|
||||
* as the done flag should be set but the packet may not have been
|
||||
* transmitted. so the output count might not require incrementing
|
||||
* if the 16 collisions flags is set. I don;t know abou this until
|
||||
* it happens.
|
||||
*/
|
||||
/*
|
||||
* Did it succeed ? Did we collide ?
|
||||
*
|
||||
* The exact proceedure here is not clear. We should get
|
||||
* an interrupt on a sucessfull tx or on a collision.
|
||||
* The done flag is set after successfull tx or 16 collisions
|
||||
* We should thus get a interrupt for each of collision
|
||||
* and the done bit should not be set. However it does appear
|
||||
* to be set at the same time as the collision bit ...
|
||||
*
|
||||
* So we will count collisions and output errors and will
|
||||
* assume that if the done bit is set the packet was
|
||||
* transmitted. Stats may be wrong if 16 collisions occur on
|
||||
* a packet as the done flag should be set but the packet
|
||||
* may not have been transmitted. so the output count might
|
||||
* not require incrementing if the 16 collisions flags is
|
||||
* set. I don;t know abou this until it happens.
|
||||
*/
|
||||
|
||||
if (txstatus & EA_TXHDR_COLLISION) {
|
||||
if (txstatus & EA_TXHDR_COLLISION)
|
||||
ifp->if_collisions++;
|
||||
} else if (txstatus & EA_TXHDR_ERROR_MASK) {
|
||||
else if (txstatus & EA_TXHDR_ERROR_MASK)
|
||||
ifp->if_oerrors++;
|
||||
}
|
||||
|
||||
/* if (txstatus & EA_TXHDR_ERROR_MASK) {
|
||||
#if 0
|
||||
if (txstatus & EA_TXHDR_ERROR_MASK)
|
||||
log(LOG_WARNING, "tx packet error =%02x\n", txstatus);
|
||||
}*/
|
||||
#endif
|
||||
|
||||
if (txstatus & EA_PKTHDR_DONE) {
|
||||
ifp->if_opackets++;
|
||||
@ -1127,31 +1153,31 @@ eaintr(arg)
|
||||
}
|
||||
}
|
||||
|
||||
/* Rx interrupt ? */
|
||||
|
||||
/* Rx interrupt ? */
|
||||
if (status & EA_STATUS_RX_INT) {
|
||||
dprintf(("rxint "));
|
||||
handled = 1;
|
||||
|
||||
/* Acknowledge the interrupt */
|
||||
|
||||
/* Acknowledge the interrupt */
|
||||
WriteShort(iobase + EA_8005_COMMAND, sc->sc_command
|
||||
| EA_CMD_RX_INTACK);
|
||||
|
||||
/* Install a watchdog timer needed atm to fixed rx lockups */
|
||||
|
||||
/* Install a watchdog timer needed atm to fixed rx lockups */
|
||||
ifp->if_timer = EA_TIMEOUT;
|
||||
|
||||
/* Processes the received packets */
|
||||
/* Processes the received packets */
|
||||
eagetpackets(sc);
|
||||
|
||||
/* Make sure the receiver is on */
|
||||
|
||||
/* if ((status & EA_STATUS_RX_ON) == 0) {
|
||||
#if 0
|
||||
/* Make sure the receiver is on */
|
||||
if ((status & EA_STATUS_RX_ON) == 0) {
|
||||
WriteShort(iobase + EA_8005_COMMAND, sc->sc_command
|
||||
| EA_CMD_RX_ON);
|
||||
printf("rxintr: rx is off st=%04x\n",status);
|
||||
}*/
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef EA_DEBUG
|
||||
@ -1179,61 +1205,64 @@ eagetpackets(sc)
|
||||
|
||||
ifp = &sc->sc_ethercom.ec_if;
|
||||
|
||||
/* We start from the last rx pointer position */
|
||||
|
||||
/* We start from the last rx pointer position */
|
||||
addr = sc->sc_rx_ptr;
|
||||
sc->sc_config2 &= ~EA_CFG2_OUTPUT;
|
||||
WriteShort(iobase + EA_8005_CONFIG2, sc->sc_config2);
|
||||
|
||||
do {
|
||||
/* Read rx header */
|
||||
|
||||
/* Read rx header */
|
||||
ea_readbuf(sc, (u_char *)&rxstatus, addr, 4);
|
||||
|
||||
/* Split the packet header */
|
||||
|
||||
/* Split the packet header */
|
||||
ptr = ((rxstatus & 0xff) << 8) | ((rxstatus >> 8) & 0xff);
|
||||
ctrl = (rxstatus >> 16) & 0xff;
|
||||
status = (rxstatus >> 24) & 0xff;
|
||||
|
||||
#ifdef EA_RX_DEBUG
|
||||
dprintf(("addr=%04x ptr=%04x ctrl=%02x status=%02x\n", addr, ptr, ctrl, status));
|
||||
dprintf(("addr=%04x ptr=%04x ctrl=%02x status=%02x\n",
|
||||
addr, ptr, ctrl, status));
|
||||
#endif
|
||||
|
||||
/* Zero packet ptr ? then must be null header so exit */
|
||||
|
||||
/* Zero packet ptr ? then must be null header so exit */
|
||||
if (ptr == 0) break;
|
||||
|
||||
/* Get packet length */
|
||||
|
||||
len = (ptr - addr) - 4;
|
||||
|
||||
if (len < 0) {
|
||||
/* Get packet length */
|
||||
len = (ptr - addr) - 4;
|
||||
|
||||
if (len < 0)
|
||||
len += EA_RX_BUFFER_SIZE;
|
||||
}
|
||||
|
||||
#ifdef EA_RX_DEBUG
|
||||
dprintf(("len=%04x\n", len));
|
||||
#endif
|
||||
|
||||
/* Has the packet rx completed ? if not then exit */
|
||||
|
||||
/* Has the packet rx completed ? if not then exit */
|
||||
if ((status & EA_PKTHDR_DONE) == 0)
|
||||
break;
|
||||
|
||||
/* Did we have any errors ? then note error and go to next packet */
|
||||
|
||||
/*
|
||||
* Did we have any errors? then note error and go to
|
||||
* next packet
|
||||
*/
|
||||
if (status & 0x0f) {
|
||||
++ifp->if_ierrors;
|
||||
printf("rx packet error (%02x) - dropping packet\n", status & 0x0f);
|
||||
printf("rx packet error (%02x) - dropping packet\n",
|
||||
status & 0x0f);
|
||||
sc->sc_config2 |= EA_CFG2_OUTPUT;
|
||||
WriteShort(iobase + EA_8005_CONFIG2, sc->sc_config2);
|
||||
ea_reinit(sc);
|
||||
return;
|
||||
}
|
||||
|
||||
/* Is the packet too big ? - this will probably be trapped above as a receive error */
|
||||
|
||||
/*
|
||||
* Is the packet too big ? - this will probably be trapped
|
||||
* above as a receive error
|
||||
*/
|
||||
if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN)) {
|
||||
++ifp->if_ierrors;
|
||||
printf("rx packet size error len=%d\n", len);
|
||||
@ -1264,13 +1293,12 @@ eagetpackets(sc)
|
||||
dprintf(("new rx ptr=%04x\n", addr));
|
||||
#endif
|
||||
|
||||
/* Store new rx pointer */
|
||||
|
||||
/* Store new rx pointer */
|
||||
sc->sc_rx_ptr = addr;
|
||||
WriteShort(iobase + EA_8005_RX_END, (sc->sc_rx_ptr >> 8));
|
||||
|
||||
/* Make sure the receiver is on */
|
||||
|
||||
/* Make sure the receiver is on */
|
||||
WriteShort(iobase + EA_8005_COMMAND, sc->sc_command
|
||||
| EA_CMD_RX_ON);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user