--- /dev/null
+/* $NetBSD: if_gm.c,v 1.2 2000/03/04 11:17:00 tsubai Exp $ */
+
+/*-
+ * Copyright (c) 2000 Tsubai Masanari. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __NetBSD__
+#include "opt_inet.h"
+#include "opt_ns.h"
+#include "bpfilter.h"
+#endif /* __NetBSD__ */
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/ioctl.h>
+#include <sys/kernel.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+
+#include <vm/vm.h>
+
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <net/if_media.h>
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+
+#ifdef INET
+#include <netinet/in.h>
+#ifdef __NetBSD__
+#include <netinet/if_inarp.h>
+#endif /* __NetBSD__ */
+#endif
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcidevs.h>
+
+#include <dev/ofw/openfirm.h>
+#include <powerpc/mac/if_gmreg.h>
+#include <machine/pio.h>
+
+#define NTXBUF 4
+#define NRXBUF 32
+
+struct gmac_softc {
+ struct device sc_dev;
+#ifdef __OpenBSD__
+ struct arpcom arpcom; /* per-instance network data */
+#define sc_if arpcom.ac_if
+#define sc_enaddr arpcom.ac_enaddr
+#else
+ struct ethercom sc_ethercom;
+#define sc_if sc_ethercom.ec_if
+ char sc_laddr[6];
+#endif
+ vaddr_t sc_reg;
+ struct gmac_dma *sc_txlist;
+ struct gmac_dma *sc_rxlist;
+ int sc_txnext;
+ int sc_rxlast;
+ caddr_t sc_txbuf[NTXBUF];
+ caddr_t sc_rxbuf[NRXBUF];
+ struct mii_data sc_mii;
+};
+
+
+int gmac_match __P((struct device *, void *, void *));
+void gmac_attach __P((struct device *, struct device *, void *));
+
+static __inline u_int gmac_read_reg __P((struct gmac_softc *, int));
+static __inline void gmac_write_reg __P((struct gmac_softc *, int, u_int));
+
+static __inline void gmac_start_txdma __P((struct gmac_softc *));
+static __inline void gmac_start_rxdma __P((struct gmac_softc *));
+static __inline void gmac_stop_txdma __P((struct gmac_softc *));
+static __inline void gmac_stop_rxdma __P((struct gmac_softc *));
+
+int gmac_intr __P((void *));
+void gmac_tint __P((struct gmac_softc *));
+void gmac_rint __P((struct gmac_softc *));
+struct mbuf * gmac_get __P((struct gmac_softc *, caddr_t, int));
+void gmac_start __P((struct ifnet *));
+int gmac_put __P((struct gmac_softc *, caddr_t, struct mbuf *));
+
+void gmac_stop __P((struct gmac_softc *));
+void gmac_reset __P((struct gmac_softc *));
+void gmac_init __P((struct gmac_softc *));
+void gmac_init_mac __P((struct gmac_softc *));
+
+int gmac_ioctl __P((struct ifnet *, u_long, caddr_t));
+void gmac_watchdog __P((struct ifnet *));
+
+int gmac_mediachange __P((struct ifnet *));
+void gmac_mediastatus __P((struct ifnet *, struct ifmediareq *));
+int gmac_mii_readreg __P((struct device *, int, int));
+void gmac_mii_writereg __P((struct device *, int, int, int));
+void gmac_mii_statchg __P((struct device *));
+void gmac_mii_tick __P((void *));
+
+struct cfattach gm_ca = {
+ sizeof(struct gmac_softc), gmac_match, gmac_attach
+};
+struct cfdriver gm_cd = {
+ NULL, "gm", DV_IFNET
+};
+
+int
+gmac_match(parent, match, aux)
+ struct device *parent;
+ void *match;
+ void *aux;
+{
+ struct pci_attach_args *pa = aux;
+
+ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE &&
+ PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC)
+ return 1;
+
+ return 0;
+}
+
+void
+gmac_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct gmac_softc *sc = (void *)self;
+ struct pci_attach_args *pa = aux;
+ struct ifnet *ifp = &sc->sc_if;
+ struct mii_data *mii = &sc->sc_mii;
+ pci_intr_handle_t ih;
+ const char *intrstr = NULL;
+#if 0
+ int node;
+#endif
+ int i;
+ char *p;
+ struct gmac_dma *dp;
+ u_int32_t reg[10];
+ u_char laddr[6];
+
+#if 0
+ node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
+ if (node == 0) {
+ printf(": cannot find gmac node\n");
+ return;
+ }
+
+ OF_getprop(node, "local-mac-address", laddr, sizeof laddr);
+ OF_getprop(node, "assigned-addresses", reg, sizeof reg);
+ #endif
+
+#ifdef __OpenBSD__
+ bcopy(laddr, sc->arpcom.ac_enaddr, 6);
+#else /* !__OpenBSD */
+ bcopy(laddr, sc->sc_laddr, sizeof laddr);
+#endif /* !__OpenBSD */
+ sc->sc_reg = reg[2];
+
+#ifdef __NetBSD__
+ if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
+ pa->pa_intrline, &ih)) {
+ printf(": unable to map interrupt\n");
+ return;
+ }
+ intrstr = pci_intr_string(pa->pa_pc, ih);
+
+ if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, gmac_intr, sc) == NULL) {
+ printf(": unable to establish interrupt");
+ if (intrstr)
+ printf(" at %s", intrstr);
+ printf("\n");
+ return;
+ }
+#endif /* __NetBSD__ */
+#ifdef __OpenBSD__
+ if (pci_intr_establish(pa->pa_pc, pa->pa_intrline, IPL_NET,
+ gmac_intr, sc, "gmac") == NULL)
+ {
+ printf(": unable to establish interrupt");
+ if (intrstr)
+ printf(" at %x", pa->pa_intrline);
+ printf("\n");
+ return;
+ }
+#endif /* __OpenBSD__ */
+
+ /* Setup packet buffers and dma descriptors. */
+ p = malloc((NRXBUF + NTXBUF) * 2048 + 3 * 0x800, M_DEVBUF, M_NOWAIT);
+ if (p == NULL) {
+ printf(": cannot malloc buffers\n");
+ return;
+ }
+ p = (void *)roundup((vaddr_t)p, 0x800);
+ bzero(p, 2048 * (NRXBUF + NTXBUF) + 2 * 0x800);
+
+ sc->sc_rxlist = (void *)p;
+ p += 0x800;
+ sc->sc_txlist = (void *)p;
+ p += 0x800;
+
+ dp = sc->sc_rxlist;
+ for (i = 0; i < NRXBUF; i++) {
+ sc->sc_rxbuf[i] = p;
+ dp->address = htole32(vtophys(p));
+ dp->cmd = htole32(GMAC_OWN);
+ dp++;
+ p += 2048;
+ }
+
+ dp = sc->sc_txlist;
+ for (i = 0; i < NTXBUF; i++) {
+ sc->sc_txbuf[i] = p;
+ dp->address = htole32(vtophys(p));
+ dp++;
+ p += 2048;
+ }
+#ifdef __OpenBSD__
+ {
+ /* rather than call openfirmware, expect that ethernet
+ * is already intialized, read the address
+ * from the device -- hack?
+ */
+ u_int reg;
+ reg = gmac_read_reg(sc, GMAC_MACADDRESS0);
+ laddr[5] = reg & 0xff;
+ laddr[4] = (reg >> 8) & 0xff;
+ reg = gmac_read_reg(sc, GMAC_MACADDRESS1);
+ laddr[3] = reg & 0xff;
+ laddr[2] = (reg >> 8) & 0xff;
+ reg = gmac_read_reg(sc, GMAC_MACADDRESS2);
+ laddr[1] = reg & 0xff;
+ laddr[0] = (reg >> 8) & 0xff;
+ }
+#endif /* __OpenBSD__ */
+
+ printf(": Ethernet address %s\n", ether_sprintf(laddr));
+ printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
+
+ gmac_reset(sc);
+ gmac_init_mac(sc);
+
+ bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
+ ifp->if_softc = sc;
+ ifp->if_ioctl = gmac_ioctl;
+ ifp->if_start = gmac_start;
+ ifp->if_watchdog = gmac_watchdog;
+ ifp->if_flags =
+ IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST;
+ ifp->if_flags |= IFF_ALLMULTI;
+
+ mii->mii_ifp = ifp;
+ mii->mii_readreg = gmac_mii_readreg;
+ mii->mii_writereg = gmac_mii_writereg;
+ mii->mii_statchg = gmac_mii_statchg;
+
+ ifmedia_init(&mii->mii_media, 0, gmac_mediachange, gmac_mediastatus);
+#ifdef __NetBSD__
+ mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0);
+#endif /* __NetBSD__ */
+
+ /* Choose a default media. */
+ if (LIST_FIRST(&mii->mii_phys) == NULL) {
+ ifmedia_add(&mii->mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
+ ifmedia_set(&mii->mii_media, IFM_ETHER|IFM_NONE);
+ } else
+ ifmedia_set(&mii->mii_media, IFM_ETHER|IFM_AUTO);
+
+ if_attach(ifp);
+#ifdef __NetBSD__
+ ether_ifattach(ifp, laddr);
+#else /* !__NetBSD__ */
+ ether_ifattach(ifp);
+#endif /* !__NetBSD__ */
+
+#if NBPFILTER > 0
+ bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header));
+#endif
+}
+
+u_int
+gmac_read_reg(sc, reg)
+ struct gmac_softc *sc;
+ int reg;
+{
+ return in32rb(sc->sc_reg + reg);
+}
+
+void
+gmac_write_reg(sc, reg, val)
+ struct gmac_softc *sc;
+ int reg;
+ u_int val;
+{
+ out32rb(sc->sc_reg + reg, val);
+}
+
+void
+gmac_start_txdma(sc)
+ struct gmac_softc *sc;
+{
+ u_int x;
+
+ x = gmac_read_reg(sc, GMAC_TXDMACONFIG);
+ x |= 1;
+ gmac_write_reg(sc, GMAC_TXDMACONFIG, x);
+ x = gmac_read_reg(sc, GMAC_TXMACCONFIG);
+ x |= 1;
+ gmac_write_reg(sc, GMAC_TXMACCONFIG, x);
+}
+
+void
+gmac_start_rxdma(sc)
+ struct gmac_softc *sc;
+{
+ u_int x;
+
+ x = gmac_read_reg(sc, GMAC_RXDMACONFIG);
+ x |= 1;
+ gmac_write_reg(sc, GMAC_RXDMACONFIG, x);
+ x = gmac_read_reg(sc, GMAC_RXMACCONFIG);
+ x |= 1;
+ gmac_write_reg(sc, GMAC_RXMACCONFIG, x);
+}
+
+void
+gmac_stop_txdma(sc)
+ struct gmac_softc *sc;
+{
+ u_int x;
+
+ x = gmac_read_reg(sc, GMAC_TXDMACONFIG);
+ x &= ~1;
+ gmac_write_reg(sc, GMAC_TXDMACONFIG, x);
+ x = gmac_read_reg(sc, GMAC_TXMACCONFIG);
+ x &= ~1;
+ gmac_write_reg(sc, GMAC_TXMACCONFIG, x);
+}
+
+void
+gmac_stop_rxdma(sc)
+ struct gmac_softc *sc;
+{
+ u_int x;
+
+ x = gmac_read_reg(sc, GMAC_RXDMACONFIG);
+ x &= ~1;
+ gmac_write_reg(sc, GMAC_RXDMACONFIG, x);
+ x = gmac_read_reg(sc, GMAC_RXMACCONFIG);
+ x &= ~1;
+ gmac_write_reg(sc, GMAC_RXMACCONFIG, x);
+}
+
+int
+gmac_intr(v)
+ void *v;
+{
+ struct gmac_softc *sc = v;
+ u_int status;
+
+ status = gmac_read_reg(sc, GMAC_STATUS) & 0xff;
+ if (status == 0)
+ return 0;
+
+ if (status & GMAC_INT_RXDONE)
+ gmac_rint(sc);
+
+ if (status & GMAC_INT_TXDONE)
+ gmac_tint(sc);
+
+ return 1;
+}
+
+void
+gmac_tint(sc)
+ struct gmac_softc *sc;
+{
+ struct ifnet *ifp = &sc->sc_if;
+ volatile struct gmac_dma *dp;
+ int i;
+
+ i = gmac_read_reg(sc, GMAC_TXDMACOMPLETE);
+ dp = &sc->sc_txlist[i];
+ dp->cmd = 0; /* to be safe */
+ __asm __volatile ("sync");
+
+ ifp->if_flags &= ~IFF_OACTIVE;
+ ifp->if_timer = 0;
+ ifp->if_opackets++;
+ gmac_start(ifp);
+}
+
+void
+gmac_rint(sc)
+ struct gmac_softc *sc;
+{
+ struct ifnet *ifp = &sc->sc_if;
+ volatile struct gmac_dma *dp;
+ struct mbuf *m;
+ int i, len;
+ u_int cmd;
+
+ for (i = sc->sc_rxlast;; i++) {
+ if (i == NRXBUF)
+ i = 0;
+
+ dp = &sc->sc_rxlist[i];
+#ifdef __OpenBSD__
+ cmd = letoh32(dp->cmd);
+#else /* !__OpenBSD__ */
+ cmd = le32toh(dp->cmd);
+#endif /* !__OpenBSD__ */
+ if (cmd & GMAC_OWN)
+ break;
+ len = (cmd >> 16) & GMAC_LEN_MASK;
+ len -= 4; /* CRC */
+
+#ifdef __OpenBSD__
+ if (letoh32(dp->cmd_hi) & 0x40000000) {
+#else /* !__OpenBSD__ */
+ if (le32toh(dp->cmd_hi) & 0x40000000) {
+#endif /* !__OpenBSD__ */
+ ifp->if_ierrors++;
+ goto next;
+ }
+
+ m = gmac_get(sc, sc->sc_rxbuf[i], len);
+ if (m == NULL) {
+ ifp->if_ierrors++;
+ goto next;
+ }
+
+#if NBPFILTER > 0
+ /*
+ * Check if there's a BPF listener on this interface.
+ * If so, hand off the raw packet to BPF.
+ */
+ if (ifp->if_bpf)
+ bpf_tap(ifp->if_bpf, sc->sc_rxbuf[i], len);
+#endif
+#ifdef __OpenBSD__
+ m_adj(m, sizeof(struct ether_header));
+ ether_input(ifp,(void*) sc->sc_rxbuf[i], m);
+#else /* !__OpenBSD__ */
+ (*ifp->if_input)(ifp, m);
+#endif /* !__OpenBSD__ */
+ ifp->if_ipackets++;
+
+next:
+ dp->cmd_hi = 0;
+ __asm __volatile ("sync");
+ dp->cmd = htole32(GMAC_OWN);
+ }
+ sc->sc_rxlast = i;
+}
+
+struct mbuf *
+gmac_get(sc, pkt, totlen)
+ struct gmac_softc *sc;
+ caddr_t pkt;
+ int totlen;
+{
+ struct mbuf *m;
+ struct mbuf *top, **mp;
+ int len;
+
+ MGETHDR(m, M_DONTWAIT, MT_DATA);
+ if (m == 0)
+ return 0;
+ m->m_pkthdr.rcvif = &sc->sc_if;
+ m->m_pkthdr.len = totlen;
+ len = MHLEN;
+ top = 0;
+ mp = ⊤
+
+ while (totlen > 0) {
+ if (top) {
+ MGET(m, M_DONTWAIT, MT_DATA);
+ if (m == 0) {
+ m_freem(top);
+ return 0;
+ }
+ len = MLEN;
+ }
+ if (totlen >= MINCLSIZE) {
+ MCLGET(m, M_DONTWAIT);
+ if ((m->m_flags & M_EXT) == 0) {
+ m_free(m);
+ m_freem(top);
+ return 0;
+ }
+ len = MCLBYTES;
+ }
+ m->m_len = len = min(totlen, len);
+ bcopy(pkt, mtod(m, caddr_t), len);
+ pkt += len;
+ totlen -= len;
+ *mp = m;
+ mp = &m->m_next;
+ }
+
+ return top;
+}
+
+void
+gmac_start(ifp)
+ struct ifnet *ifp;
+{
+ struct gmac_softc *sc = ifp->if_softc;
+ struct mbuf *m;
+ caddr_t buff;
+ int i, tlen;
+ volatile struct gmac_dma *dp;
+
+ if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
+ return;
+
+ for (;;) {
+ if (ifp->if_flags & IFF_OACTIVE)
+ break;
+
+ IF_DEQUEUE(&ifp->if_snd, m);
+ if (m == 0)
+ break;
+
+ ifp->if_flags |= IFF_OACTIVE;
+
+ /* 5 seconds to watch for failing to transmit */
+ ifp->if_timer = 5;
+ ifp->if_opackets++; /* # of pkts */
+
+ i = sc->sc_txnext;
+ buff = sc->sc_txbuf[i];
+ tlen = gmac_put(sc, buff, m);
+
+ dp = &sc->sc_txlist[i];
+ dp->cmd_hi = 0;
+ dp->address_hi = 0;
+ dp->cmd = htole32(tlen | GMAC_OWN | GMAC_SOP);
+
+ i++;
+ if (i == NTXBUF)
+ i = 0;
+ __asm __volatile ("sync");
+
+ gmac_write_reg(sc, GMAC_TXDMAKICK, i);
+ sc->sc_txnext = i;
+
+#if NBPFILTER > 0
+ /*
+ * If BPF is listening on this interface, let it see the
+ * packet before we commit it to the wire.
+ */
+ if (ifp->if_bpf)
+ bpf_tap(ifp->if_bpf, buff, tlen);
+#endif
+ }
+}
+
+int
+gmac_put(sc, buff, m)
+ struct gmac_softc *sc;
+ caddr_t buff;
+ struct mbuf *m;
+{
+ struct mbuf *n;
+ int len, tlen = 0;
+
+ for (; m; m = n) {
+ len = m->m_len;
+ if (len == 0) {
+ MFREE(m, n);
+ continue;
+ }
+ bcopy(mtod(m, caddr_t), buff, len);
+ buff += len;
+ tlen += len;
+ MFREE(m, n);
+ }
+ if (tlen > 2048)
+ panic("%s: gmac_put packet overflow", sc->sc_dev.dv_xname);
+
+ return tlen;
+}
+
+void
+gmac_reset(sc)
+ struct gmac_softc *sc;
+{
+ int i, s;
+
+ s = splnet();
+
+ gmac_stop_txdma(sc);
+ gmac_stop_rxdma(sc);
+
+ gmac_write_reg(sc, GMAC_SOFTWARERESET, 3);
+ for (i = 10; i > 0; i--) {
+ delay(300000); /* XXX long delay */
+ if ((gmac_read_reg(sc, GMAC_SOFTWARERESET) & 3) == 0)
+ break;
+ }
+ if (i == 0)
+ printf("%s: reset timeout\n", sc->sc_dev.dv_xname);
+
+ sc->sc_txnext = 0;
+ sc->sc_rxlast = 0;
+ for (i = 0; i < NRXBUF; i++)
+ sc->sc_rxlist[i].cmd = htole32(GMAC_OWN);
+ __asm __volatile ("sync");
+
+ gmac_write_reg(sc, GMAC_TXDMADESCBASEHI, 0);
+ gmac_write_reg(sc, GMAC_TXDMADESCBASELO, vtophys(sc->sc_txlist));
+ gmac_write_reg(sc, GMAC_RXDMADESCBASEHI, 0);
+ gmac_write_reg(sc, GMAC_RXDMADESCBASELO, vtophys(sc->sc_rxlist));
+ gmac_write_reg(sc, GMAC_RXDMAKICK, NRXBUF);
+
+ splx(s);
+}
+
+void
+gmac_stop(sc)
+ struct gmac_softc *sc;
+{
+ struct ifnet *ifp = &sc->sc_if;
+ int s;
+
+ s = splnet();
+
+ untimeout(gmac_mii_tick, sc);
+#ifndef __OenBSD__
+ mii_down(&sc->sc_mii);
+#endif
+
+ gmac_stop_txdma(sc);
+ gmac_stop_rxdma(sc);
+
+ gmac_write_reg(sc, GMAC_INTMASK, 0xffffffff);
+
+ ifp->if_flags &= ~(IFF_UP | IFF_RUNNING);
+ ifp->if_timer = 0;
+
+ splx(s);
+}
+
+void
+gmac_init_mac(sc)
+ struct gmac_softc *sc;
+{
+ int i, tb;
+#ifdef __NetBSD__
+ char *laddr = sc->sc_laddr;
+#else /* !__NetBSD__ */
+ char *laddr = sc->sc_enaddr;
+#endif
+
+ __asm ("mftb %0" : "=r"(tb));
+ gmac_write_reg(sc, GMAC_RANDOMSEED, tb);
+
+ /* init-mii */
+ gmac_write_reg(sc, GMAC_DATAPATHMODE, 4);
+ gmac_mii_writereg(&sc->sc_dev, 0, 0, 0x1000);
+
+ gmac_write_reg(sc, GMAC_TXDMACONFIG, 0xffc00);
+ gmac_write_reg(sc, GMAC_RXDMACONFIG, 0);
+ gmac_write_reg(sc, GMAC_MACPAUSE, 0x1bf0);
+ gmac_write_reg(sc, GMAC_INTERPACKETGAP0, 0);
+ gmac_write_reg(sc, GMAC_INTERPACKETGAP1, 8);
+ gmac_write_reg(sc, GMAC_INTERPACKETGAP2, 4);
+ gmac_write_reg(sc, GMAC_MINFRAMESIZE, ETHER_MIN_LEN);
+ gmac_write_reg(sc, GMAC_MAXFRAMESIZE, ETHER_MAX_LEN);
+ gmac_write_reg(sc, GMAC_PASIZE, 7);
+ gmac_write_reg(sc, GMAC_JAMSIZE, 4);
+ gmac_write_reg(sc, GMAC_ATTEMPTLIMIT,0x10);
+ gmac_write_reg(sc, GMAC_MACCNTLTYPE, 0x8808);
+
+ gmac_write_reg(sc, GMAC_MACADDRESS0, (laddr[4] << 8) | laddr[5]);
+ gmac_write_reg(sc, GMAC_MACADDRESS1, (laddr[2] << 8) | laddr[3]);
+ gmac_write_reg(sc, GMAC_MACADDRESS2, (laddr[0] << 8) | laddr[1]);
+ gmac_write_reg(sc, GMAC_MACADDRESS3, 0);
+ gmac_write_reg(sc, GMAC_MACADDRESS4, 0);
+ gmac_write_reg(sc, GMAC_MACADDRESS5, 0);
+ gmac_write_reg(sc, GMAC_MACADDRESS6, 1);
+ gmac_write_reg(sc, GMAC_MACADDRESS7, 0xc200);
+ gmac_write_reg(sc, GMAC_MACADDRESS8, 0x0180);
+ gmac_write_reg(sc, GMAC_MACADDRFILT0, 0);
+ gmac_write_reg(sc, GMAC_MACADDRFILT1, 0);
+ gmac_write_reg(sc, GMAC_MACADDRFILT2, 0);
+ gmac_write_reg(sc, GMAC_MACADDRFILT2_1MASK, 0);
+ gmac_write_reg(sc, GMAC_MACADDRFILT0MASK, 0);
+
+ for (i = 0; i < 0x6c; i+= 4)
+ gmac_write_reg(sc, GMAC_HASHTABLE0 + i, 0);
+
+ gmac_write_reg(sc, GMAC_SLOTTIME, 0x40);
+
+ /* XXX */
+ gmac_write_reg(sc, GMAC_TXMACCONFIG, 0);
+ gmac_write_reg(sc, GMAC_XIFCONFIG, 5);
+ gmac_write_reg(sc, GMAC_MACCTRLCONFIG, 0);
+}
+
+void
+gmac_init(sc)
+ struct gmac_softc *sc;
+{
+ struct ifnet *ifp = &sc->sc_if;
+ u_int x;
+ int i;
+
+ gmac_stop_txdma(sc);
+ gmac_stop_rxdma(sc);
+
+ gmac_init_mac(sc);
+
+ x = gmac_read_reg(sc, GMAC_RXMACCONFIG);
+ if (ifp->if_flags & IFF_PROMISC)
+ x |= GMAC_RXMAC_PR;
+ else
+ x &= ~GMAC_RXMAC_PR;
+ gmac_write_reg(sc, GMAC_RXMACCONFIG, x);
+
+ gmac_start_txdma(sc);
+ gmac_start_rxdma(sc);
+
+ gmac_write_reg(sc, GMAC_INTMASK, ~(GMAC_INT_TXDONE | GMAC_INT_RXDONE));
+
+ ifp->if_flags |= IFF_RUNNING;
+ ifp->if_flags &= ~IFF_OACTIVE;
+ ifp->if_timer = 0;
+
+ untimeout(gmac_mii_tick, sc);
+ timeout(gmac_mii_tick, sc, 1);
+
+ gmac_start(ifp);
+}
+
+int
+gmac_ioctl(ifp, cmd, data)
+ struct ifnet *ifp;
+ u_long cmd;
+ caddr_t data;
+{
+ struct gmac_softc *sc = ifp->if_softc;
+ struct ifaddr *ifa = (struct ifaddr *)data;
+ struct ifreq *ifr = (struct ifreq *)data;
+ int s, error = 0;
+
+ s = splnet();
+
+ switch (cmd) {
+
+ case SIOCSIFADDR:
+ ifp->if_flags |= IFF_UP;
+
+ switch (ifa->ifa_addr->sa_family) {
+#ifdef INET
+ case AF_INET:
+ gmac_init(sc);
+#ifdef __OpenBSD__
+ arp_ifinit(&sc->arpcom, ifa);
+#else /* !__OpenBSD__ */
+ arp_ifinit(ifp, ifa);
+#endif /* !__OpenBSD__ */
+ break;
+#endif
+#ifdef NS
+ case AF_NS:
+ {
+ struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
+
+ if (ns_nullhost(*ina))
+ ina->x_host =
+ *(union ns_host *)LLADDR(ifp->if_sadl);
+ else {
+ bcopy(ina->x_host.c_host,
+ LLADDR(ifp->if_sadl),
+ sizeof(sc->sc_enaddr));
+ }
+ /* Set new address. */
+ gmac_init(sc);
+ break;
+ }
+#endif
+ default:
+ gmac_init(sc);
+ break;
+ }
+ break;
+
+ case SIOCSIFFLAGS:
+ if ((ifp->if_flags & IFF_UP) == 0 &&
+ (ifp->if_flags & IFF_RUNNING) != 0) {
+ /*
+ * If interface is marked down and it is running, then
+ * stop it.
+ */
+ gmac_stop(sc);
+ ifp->if_flags &= ~IFF_RUNNING;
+ } else if ((ifp->if_flags & IFF_UP) != 0 &&
+ (ifp->if_flags & IFF_RUNNING) == 0) {
+ /*
+ * If interface is marked up and it is stopped, then
+ * start it.
+ */
+ gmac_init(sc);
+ } else {
+ /*
+ * Reset the interface to pick up changes in any other
+ * flags that affect hardware registers.
+ */
+ gmac_reset(sc);
+ gmac_init(sc);
+ }
+#ifdef GMAC_DEBUG
+ if (ifp->if_flags & IFF_DEBUG)
+ sc->sc_flags |= GMAC_DEBUGFLAG;
+#endif
+ break;
+
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+#if defined(__OpenBSD__)
+ error = (cmd == SIOCADDMULTI) ?
+ ether_addmulti(ifr, &sc->arpcom) :
+ ether_delmulti(ifr, &sc->arpcom);
+#else
+ error = (cmd == SIOCADDMULTI) ?
+ ether_addmulti(ifr, &sc->sc_ethercom) :
+ ether_delmulti(ifr, &sc->sc_ethercom);
+#endif
+
+ if (error == ENETRESET) {
+ /*
+ * Multicast list has changed; set the hardware filter
+ * accordingly.
+ */
+ gmac_init(sc);
+ /* gmac_setladrf(sc); */
+ error = 0;
+ }
+ break;
+
+ case SIOCGIFMEDIA:
+ case SIOCSIFMEDIA:
+ error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd);
+ break;
+
+ default:
+ error = EINVAL;
+ }
+
+ splx(s);
+ return error;
+}
+
+void
+gmac_watchdog(ifp)
+ struct ifnet *ifp;
+{
+ struct gmac_softc *sc = ifp->if_softc;
+
+ printf("%s: device timeout\n", ifp->if_xname);
+ ifp->if_oerrors++;
+
+ gmac_reset(sc);
+ gmac_init(sc);
+}
+
+int
+gmac_mediachange(ifp)
+ struct ifnet *ifp;
+{
+ struct gmac_softc *sc = ifp->if_softc;
+
+ return mii_mediachg(&sc->sc_mii);
+}
+
+void
+gmac_mediastatus(ifp, ifmr)
+ struct ifnet *ifp;
+ struct ifmediareq *ifmr;
+{
+ struct gmac_softc *sc = ifp->if_softc;
+
+ mii_pollstat(&sc->sc_mii);
+
+ ifmr->ifm_status = sc->sc_mii.mii_media_status;
+ ifmr->ifm_active = sc->sc_mii.mii_media_active;
+}
+
+int
+gmac_mii_readreg(dev, phy, reg)
+ struct device *dev;
+ int phy, reg;
+{
+ struct gmac_softc *sc = (void *)dev;
+ int i;
+
+ gmac_write_reg(sc, GMAC_MIFFRAMEOUTPUT,
+ 0x60020000 | (phy << 23) | (reg << 18));
+
+ for (i = 1000; i >= 0; i -= 10) {
+ if (gmac_read_reg(sc, GMAC_MIFFRAMEOUTPUT) & 0x10000)
+ break;
+ delay(10);
+ }
+ if (i < 0) {
+ printf("%s: gmac_mii_readreg: timeout\n", sc->sc_dev.dv_xname);
+ return 0;
+ }
+
+ return gmac_read_reg(sc, GMAC_MIFFRAMEOUTPUT) & 0xffff;
+}
+
+void
+gmac_mii_writereg(dev, phy, reg, val)
+ struct device *dev;
+ int phy, reg, val;
+{
+ struct gmac_softc *sc = (void *)dev;
+ int i;
+
+ gmac_write_reg(sc, GMAC_MIFFRAMEOUTPUT,
+ 0x50020000 | (phy << 23) | (reg << 18) | (val & 0xffff));
+
+ for (i = 1000; i >= 0; i -= 10) {
+ if (gmac_read_reg(sc, GMAC_MIFFRAMEOUTPUT) & 0x10000)
+ break;
+ delay(10);
+ }
+ if (i < 0)
+ printf("%s: gmac_mii_writereg: timeout\n", sc->sc_dev.dv_xname);
+}
+
+void
+gmac_mii_statchg(dev)
+ struct device *dev;
+{
+ struct gmac_softc *sc = (void *)dev;
+
+ gmac_stop_txdma(sc);
+ gmac_stop_rxdma(sc);
+
+ if (IFM_OPTIONS(sc->sc_mii.mii_media_active) & IFM_FDX) {
+ gmac_write_reg(sc, GMAC_TXMACCONFIG, 6);
+ gmac_write_reg(sc, GMAC_XIFCONFIG, 1);
+ } else {
+ gmac_write_reg(sc, GMAC_TXMACCONFIG, 0);
+ gmac_write_reg(sc, GMAC_XIFCONFIG, 5);
+ }
+
+ if (0) /* g-bit? */
+ gmac_write_reg(sc, GMAC_MACCTRLCONFIG, 3);
+ else
+ gmac_write_reg(sc, GMAC_MACCTRLCONFIG, 0);
+
+ gmac_start_txdma(sc);
+ gmac_start_rxdma(sc);
+}
+
+void
+gmac_mii_tick(v)
+ void *v;
+{
+ struct gmac_softc *sc = v;
+ int s;
+
+ s = splnet();
+ mii_tick(&sc->sc_mii);
+ splx(s);
+
+ timeout(gmac_mii_tick, sc, hz);
+}
projects / openbsd / commitdiff