1999/0921/mpc/etherwavelan.c (diff list | history)

1999/0625/sys/src/9/mpc/etherwavelan.c:19,25 – 1999/0921/sys/src/9/mpc/etherwavelan.c:19,25 (short | long | prev | next)
1999/0623		#include "etherwavelan.h" static void wavelan_receive(Ether *ether);
1999/0921		static int wavelan_receive(Ether *ether);
1999/0623		static int txstart(Ether *ether); static void
1999/0625/sys/src/9/mpc/etherwavelan.c:291,296 – 1999/0921/sys/src/9/mpc/etherwavelan.c:291,298
1999/0623		ctlr = ether->ctlr; base = ctlr->port;
1999/0921		print("%ld: send packet %d\n", m->ticks, length);
1999/0623		outb(PIORL(base), xmtdata_base & 0xff); outb(PIORH(base), ((xmtdata_base >> 8) & PIORH_MASK) | PIORH_SEL_TX); outb(PIOP(base), length & 0xff); /* lsb */
1999/0625/sys/src/9/mpc/etherwavelan.c:396,402 – 1999/0921/sys/src/9/mpc/etherwavelan.c:398,404
1999/0623		ctlr->rx_packets++; if ((bp = rbpalloc(allocb)) == 0){
1999/0921		if ((bp = rbpalloc(iallocb)) == 0){
1999/0623		print("wavelan: could not rbpalloc(%d).\n", sksize); ctlr->rx_dropped++; return;
1999/0625/sys/src/9/mpc/etherwavelan.c:415,421 – 1999/0921/sys/src/9/mpc/etherwavelan.c:417,423
1999/0623		} } /* wavelan_read */ static void
1999/0921		static int
1999/0623		wavelan_receive(Ether *ether) { Ctlr *ctlr;
1999/0625/sys/src/9/mpc/etherwavelan.c:442,453 – 1999/0921/sys/src/9/mpc/etherwavelan.c:444,456
1999/0623		newrfp |= inb(RPLH(base)) << 8; newrfp %= RX_SIZE; // print("wavelan_cs: i593_rfp %d stop %d newrfp %d ctlr->rfp %d\n", // i593_rfp, ctlr->stop, newrfp, ctlr->rfp);
1999/0921		if(0) print("before wavelan_cs: i593_rfp %d stop %d newrfp %d ctlr->rfp %d\n", i593_rfp, ctlr->stop, newrfp, ctlr->rfp);
1999/0623		if (newrfp == ctlr->rfp)
1999/0921		if (newrfp == ctlr->rfp) {
1999/0623		print("wavelan_cs: odd RFPs: i593_rfp %d stop %d newrfp %d ctlr->rfp %d\n", i593_rfp, ctlr->stop, newrfp, ctlr->rfp);
1999/0921		return 0; }
1999/0623		while(newrfp != ctlr->rfp) { rp = newrfp;
1999/0625/sys/src/9/mpc/etherwavelan.c:466,471 – 1999/0921/sys/src/9/mpc/etherwavelan.c:469,475
1999/0623		status = c[0] | (c[1] << 8); len = c[2] | (c[3] << 8);
1999/0921		print("%ld: len = %d status = %ux %ux %ux\n", m->ticks, len, status, newrfp, rp);
1999/0623		if(!(status & RX_RCV_OK)) { if(status & RX_NO_SFD) ctlr->rx_no_sfd++; if(status & RX_CRC_ERR) ctlr->rx_crc++;
1999/0625/sys/src/9/mpc/etherwavelan.c:483,491 – 1999/0921/sys/src/9/mpc/etherwavelan.c:487,504
1999/0623		* per packet. */ ctlr->stop = (i593_rfp + RX_SIZE - ((RX_SIZE / 64) * 3)) % RX_SIZE;
1999/0921		//print("ctlr->stop = %ux\n", ctlr->stop);
1999/0623		outb(LCCR(base), OP0_SWIT_TO_PORT_1 | CR0_CHNL); outb(LCCR(base), CR1_STOP_REG_UPDATE | (ctlr->stop >> RX_SIZE_SHIFT)); outb(LCCR(base), OP1_SWIT_TO_PORT_0);
1999/0921		newrfp = inb(RPLL(base)); newrfp |= inb(RPLH(base)) << 8; newrfp %= RX_SIZE; if(newrfp != ctlr->rfp) print("after wavelan_cs: left over = %d\n", (newrfp - ctlr->rfp + RX_SIZE) % RX_SIZE); return 1;
1999/0623		} /* wavelan_receive */ static void
1999/0625/sys/src/9/mpc/etherwavelan.c:505,511 – 1999/0921/sys/src/9/mpc/etherwavelan.c:518,525
1999/0623		outb(LCCR(base), CR0_STATUS_0 | OP0_NOP); interrupt_handler(ether, inb(LCSR(base)));
1999/0921		outb(LCCR(base), CR0_STATUS_0 | OP0_NOP); print("status = %ux\n", inb(LCSR(base)));
1999/0623		iunlock(&ctlr->wlock); }; /* wavelan interrupt */