diff options
author | phk <phk@FreeBSD.org> | 2000-04-26 06:02:13 +0000 |
---|---|---|
committer | phk <phk@FreeBSD.org> | 2000-04-26 06:02:13 +0000 |
commit | 6dc0481ebb733de28807a34a74e558ec3f10be83 (patch) | |
tree | 51501c73e22e43fb143e525e76ad24b8e00f278d /sys/dev | |
parent | 0eeff70115826995ea3e07a3d4b2942e15060c59 (diff) | |
download | FreeBSD-src-6dc0481ebb733de28807a34a74e558ec3f10be83.zip FreeBSD-src-6dc0481ebb733de28807a34a74e558ec3f10be83.tar.gz |
LanMedias driver sources for the LMC1000 and similar cards.
Does not yet compile yet.
Diffstat (limited to 'sys/dev')
-rw-r--r-- | sys/dev/lmc/if_lmc.c | 1396 | ||||
-rw-r--r-- | sys/dev/lmc/if_lmc_common.c | 270 | ||||
-rw-r--r-- | sys/dev/lmc/if_lmc_fbsd3.c | 274 | ||||
-rw-r--r-- | sys/dev/lmc/if_lmc_media.c | 952 | ||||
-rw-r--r-- | sys/dev/lmc/if_lmcioctl.h | 276 | ||||
-rw-r--r-- | sys/dev/lmc/if_lmcvar.h | 578 |
6 files changed, 3746 insertions, 0 deletions
diff --git a/sys/dev/lmc/if_lmc.c b/sys/dev/lmc/if_lmc.c new file mode 100644 index 0000000..0753c72 --- /dev/null +++ b/sys/dev/lmc/if_lmc.c @@ -0,0 +1,1396 @@ +/* $FreeBSD$ */ +/* From NetBSD: if_de.c,v 1.56.2.1 1997/10/27 02:13:25 thorpej Exp */ +/* $Id: if_lmc.c,v 1.9 1999/02/19 15:08:42 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +char lmc_version[] = "BSD 1.1"; + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <sys/errno.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/proc.h> /* only for declaration of wakeup() used by vm.h */ +#if defined(__FreeBSD__) +#include <machine/clock.h> +#elif defined(__bsdi__) || defined(__NetBSD__) +#include <sys/device.h> +#endif + +#if defined(__NetBSD__) +#include <dev/pci/pcidevs.h> +#include "rnd.h" +#if NRND > 0 +#include <sys/rnd.h> +#endif +#endif + +#include <net/if.h> +#include <net/if_types.h> +#include <net/if_dl.h> +#include <net/netisr.h> + +#include "bpfilter.h" +#if NBPFILTER > 0 +#include <net/bpf.h> +#include <net/bpfdesc.h> +#endif + +#include <vm/vm.h> +#include <vm/vm_param.h> +#include <vm/vm_kern.h> + +#if defined(__FreeBSD__) || defined(__NetBSD__) +#include <net/if_sppp.h> +#endif + +#if defined(__bsdi__) +#if INET +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/ip.h> +#endif + +#include <net/netisr.h> +#include <net/if.h> +#include <net/netisr.h> +#include <net/if_types.h> +#include <net/if_p2p.h> +#include <net/if_c_hdlc.h> +#endif + +#if defined(__FreeBSD__) +#include <vm/pmap.h> +#include <pci.h> +#if NPCI > 0 +#include <pci/pcivar.h> +#include <pci/dc21040reg.h> +#define INCLUDE_PATH_PREFIX "pci/" +#endif +#endif /* __FreeBSD__ */ + +#if defined(__bsdi__) +#include <i386/pci/ic/dc21040.h> +#include <i386/isa/isa.h> +#include <i386/isa/icu.h> +#include <i386/isa/dma.h> +#include <i386/isa/isavar.h> +#include <i386/pci/pci.h> + +#define INCLUDE_PATH_PREFIX "i386/pci/" +#endif /* __bsdi__ */ + +#if defined(__NetBSD__) +#include <machine/bus.h> +#if defined(__alpha__) +#include <machine/intr.h> +#endif +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/ic/dc21040reg.h> +#define INCLUDE_PATH_PREFIX "dev/pci/" +#endif /* __NetBSD__ */ + +/* + * Intel CPUs should use I/O mapped access. XXXMLG Is this true on NetBSD + * too? + */ +#if defined(__i386__) +#define LMC_IOMAPPED +#endif + +/* + * This turns on all sort of debugging stuff and make the + * driver much larger. + */ +#if 0 +#define LMC_DEBUG +#define DP(x) printf x +#else +#define DP(x) +#endif + +#define LMC_HZ 10 + +#ifndef TULIP_GP_PINSET +#define TULIP_GP_PINSET 0x00000100L +#endif +#ifndef TULIP_BUSMODE_READMULTIPLE +#define TULIP_BUSMODE_READMULTIPLE 0x00200000L +#endif + +/* + * C sucks + */ +typedef struct lmc___softc lmc_softc_t; +typedef struct lmc___media lmc_media_t; +typedef struct lmc___ctl lmc_ctl_t; + +/* + * Sigh. Every OS puts these in different places. NetBSD and FreeBSD use + * a C preprocessor that allows this hack, but BSDI does not. + */ +#if defined(__NetBSD__) || defined(__FreeBSD__) +#include INCLUDE_PATH_PREFIX "if_lmcioctl.h" +#include INCLUDE_PATH_PREFIX "if_lmcvar.h" +#include INCLUDE_PATH_PREFIX "if_lmc_common.c" +#include INCLUDE_PATH_PREFIX "if_lmc_media.c" +#else /* BSDI */ +#include "i386/pci/if_lmcioctl.h" +#include "i386/pci/if_lmcvar.h" +#include "i386/pci/if_lmc_common.c" +#include "i386/pci/if_lmc_media.c" +#endif + +/* + * This module supports + * the DEC 21140A pass 2.2 PCI Fast Ethernet Controller. + */ +static lmc_intrfunc_t lmc_intr_normal(void *); +static ifnet_ret_t lmc_ifstart_one(struct ifnet *ifp); +static ifnet_ret_t lmc_ifstart(struct ifnet *ifp); +static struct mbuf *lmc_txput(lmc_softc_t * const sc, struct mbuf *m); +static void lmc_rx_intr(lmc_softc_t * const sc); + +#if defined(__NetBSD__) || defined(__FreeBSD__) +static void lmc_watchdog(struct ifnet *ifp); +#endif +#if defined(__bsdi__) +static int lmc_watchdog(int); +#endif +static void lmc_ifup(lmc_softc_t * const sc); +static void lmc_ifdown(lmc_softc_t * const sc); + + +/* + * Code the read the SROM and MII bit streams (I2C) + */ +static void +lmc_delay_300ns(lmc_softc_t * const sc) +{ + int idx; + for (idx = (300 / 33) + 1; idx > 0; idx--) + (void)LMC_CSR_READ(sc, csr_busmode); +} + + +#define EMIT \ +do { \ + LMC_CSR_WRITE(sc, csr_srom_mii, csr); \ + lmc_delay_300ns(sc); \ +} while (0) + +static void +lmc_srom_idle(lmc_softc_t * const sc) +{ + unsigned bit, csr; + + csr = SROMSEL ; EMIT; + csr = SROMSEL | SROMRD; EMIT; + csr ^= SROMCS; EMIT; + csr ^= SROMCLKON; EMIT; + + /* + * Write 25 cycles of 0 which will force the SROM to be idle. + */ + for (bit = 3 + SROM_BITWIDTH + 16; bit > 0; bit--) { + csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */ + csr ^= SROMCLKON; EMIT; /* clock high; data valid */ + } + csr ^= SROMCLKOFF; EMIT; + csr ^= SROMCS; EMIT; + csr = 0; EMIT; +} + + +static void +lmc_srom_read(lmc_softc_t * const sc) +{ + unsigned idx; + const unsigned bitwidth = SROM_BITWIDTH; + const unsigned cmdmask = (SROMCMD_RD << bitwidth); + const unsigned msb = 1 << (bitwidth + 3 - 1); + unsigned lastidx = (1 << bitwidth) - 1; + + lmc_srom_idle(sc); + + for (idx = 0; idx <= lastidx; idx++) { + unsigned lastbit, data, bits, bit, csr; + csr = SROMSEL ; EMIT; + csr = SROMSEL | SROMRD; EMIT; + csr ^= SROMCSON; EMIT; + csr ^= SROMCLKON; EMIT; + + lastbit = 0; + for (bits = idx|cmdmask, bit = bitwidth + 3 + ; bit > 0 + ; bit--, bits <<= 1) { + const unsigned thisbit = bits & msb; + csr ^= SROMCLKOFF; EMIT; /* clock L data invalid */ + if (thisbit != lastbit) { + csr ^= SROMDOUT; EMIT;/* clock L invert data */ + } else { + EMIT; + } + csr ^= SROMCLKON; EMIT; /* clock H data valid */ + lastbit = thisbit; + } + csr ^= SROMCLKOFF; EMIT; + + for (data = 0, bits = 0; bits < 16; bits++) { + data <<= 1; + csr ^= SROMCLKON; EMIT; /* clock H data valid */ + data |= LMC_CSR_READ(sc, csr_srom_mii) & SROMDIN ? 1 : 0; + csr ^= SROMCLKOFF; EMIT; /* clock L data invalid */ + } + sc->lmc_rombuf[idx*2] = data & 0xFF; + sc->lmc_rombuf[idx*2+1] = data >> 8; + csr = SROMSEL | SROMRD; EMIT; + csr = 0; EMIT; + } + lmc_srom_idle(sc); +} + +#define MII_EMIT do { LMC_CSR_WRITE(sc, csr_srom_mii, csr); lmc_delay_300ns(sc); } while (0) + +static void +lmc_mii_writebits(lmc_softc_t * const sc, unsigned data, unsigned bits) +{ + unsigned msb = 1 << (bits - 1); + unsigned csr = LMC_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + unsigned lastbit = (csr & MII_DOUT) ? msb : 0; + + csr |= MII_WR; MII_EMIT; /* clock low; assert write */ + + for (; bits > 0; bits--, data <<= 1) { + const unsigned thisbit = data & msb; + if (thisbit != lastbit) { + csr ^= MII_DOUT; MII_EMIT; /* clock low; invert data */ + } + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + lastbit = thisbit; + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + } +} + +static void +lmc_mii_turnaround(lmc_softc_t * const sc, unsigned cmd) +{ + unsigned csr = LMC_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + + if (cmd == MII_WRCMD) { + csr |= MII_DOUT; MII_EMIT; /* clock low; change data */ + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + csr ^= MII_DOUT; MII_EMIT; /* clock low; change data */ + } else { + csr |= MII_RD; MII_EMIT; /* clock low; switch to read */ + } + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ +} + +static unsigned +lmc_mii_readbits(lmc_softc_t * const sc) +{ + unsigned data; + unsigned csr = LMC_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + int idx; + + for (idx = 0, data = 0; idx < 16; idx++) { + data <<= 1; /* this is NOOP on the first pass through */ + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + if (LMC_CSR_READ(sc, csr_srom_mii) & MII_DIN) + data |= 1; + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + } + csr ^= MII_RD; MII_EMIT; /* clock low; turn off read */ + + return data; +} + +static unsigned +lmc_mii_readreg(lmc_softc_t * const sc, unsigned devaddr, unsigned regno) +{ + unsigned csr = LMC_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + unsigned data; + + csr &= ~(MII_RD|MII_CLK); MII_EMIT; + lmc_mii_writebits(sc, MII_PREAMBLE, 32); + lmc_mii_writebits(sc, MII_RDCMD, 8); + lmc_mii_writebits(sc, devaddr, 5); + lmc_mii_writebits(sc, regno, 5); + lmc_mii_turnaround(sc, MII_RDCMD); + + data = lmc_mii_readbits(sc); + return data; +} + +static void +lmc_mii_writereg(lmc_softc_t * const sc, unsigned devaddr, + unsigned regno, unsigned data) +{ + unsigned csr = LMC_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + csr &= ~(MII_RD|MII_CLK); MII_EMIT; + lmc_mii_writebits(sc, MII_PREAMBLE, 32); + lmc_mii_writebits(sc, MII_WRCMD, 8); + lmc_mii_writebits(sc, devaddr, 5); + lmc_mii_writebits(sc, regno, 5); + lmc_mii_turnaround(sc, MII_WRCMD); + lmc_mii_writebits(sc, data, 16); +} + +static int +lmc_read_macaddr(lmc_softc_t * const sc) +{ + lmc_srom_read(sc); + + bcopy(sc->lmc_rombuf + 20, sc->lmc_enaddr, 6); + + return 0; +} + +/* + * Check to make certain there is a signal from the modem, and flicker + * lights as needed. + */ +#if defined(__NetBSD__) || defined(__FreeBSD__) +static void +lmc_watchdog(struct ifnet *ifp) +#endif +#if defined(__bsdi__) +static int +lmc_watchdog(int unit) +#endif +{ +#if defined(__NetBSD__) || defined(__FreeBSD__) + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); +#endif +#if defined(__bsdi__) + lmc_softc_t * const sc = LMC_UNIT_TO_SOFTC(unit); + struct ifnet *ifp = &sc->lmc_if; +#endif + int state; + u_int32_t ostatus; + u_int32_t link_status; + u_int32_t ticks; + + state = 0; + + link_status = sc->lmc_media->get_link_status(sc); + ostatus = ((sc->lmc_flags & LMC_MODEMOK) == LMC_MODEMOK); + + /* + * hardware level link lost, but the interface is marked as up. + * Mark it as down. + */ + if (link_status == 0 && ostatus) { + printf(LMC_PRINTF_FMT ": physical link down\n", + LMC_PRINTF_ARGS); + sc->lmc_flags &= ~LMC_MODEMOK; + lmc_led_off(sc, LMC_MII16_LED1); + } + + /* + * hardware link is up, but the interface is marked as down. + * Bring it back up again. + */ + if (link_status != 0 && !ostatus) { + printf(LMC_PRINTF_FMT ": physical link up\n", + LMC_PRINTF_ARGS); + if (sc->lmc_flags & LMC_IFUP) + lmc_ifup(sc); + sc->lmc_flags |= LMC_MODEMOK; + lmc_led_on(sc, LMC_MII16_LED1); + return; + } + + /* + * remember the timer value + */ + ticks = LMC_CSR_READ(sc, csr_gp_timer); + LMC_CSR_WRITE(sc, csr_gp_timer, 0xffffffffUL); + sc->ictl.ticks = 0x0000ffff - (ticks & 0x0000ffff); + + ifp->if_timer = 1; +} + +/* + * Mark the interface as "up" and enable TX/RX and TX/RX interrupts. + * This also does a full software reset. + */ +static void +lmc_ifup(lmc_softc_t * const sc) +{ + sc->lmc_if.if_timer = 0; + + lmc_dec_reset(sc); + lmc_reset(sc); + + sc->lmc_media->set_link_status(sc, 1); + sc->lmc_media->set_status(sc, NULL); + + sc->lmc_flags |= LMC_IFUP; + lmc_led_on(sc, LMC_MII16_LED1); + + /* + * select what interrupts we want to get + */ + sc->lmc_intrmask |= (TULIP_STS_NORMALINTR + | TULIP_STS_RXINTR + | TULIP_STS_TXINTR + | TULIP_STS_ABNRMLINTR + | TULIP_STS_SYSERROR + | TULIP_STS_TXSTOPPED + | TULIP_STS_TXUNDERFLOW + | TULIP_STS_RXSTOPPED + ); + LMC_CSR_WRITE(sc, csr_intr, sc->lmc_intrmask); + + sc->lmc_cmdmode |= TULIP_CMD_TXRUN; + sc->lmc_cmdmode |= TULIP_CMD_RXRUN; + LMC_CSR_WRITE(sc, csr_command, sc->lmc_cmdmode); + + sc->lmc_if.if_timer = 1; +} + +/* + * Mark the interface as "down" and disable TX/RX and TX/RX interrupts. + * This is done by performing a full reset on the interface. + */ +static void +lmc_ifdown(lmc_softc_t * const sc) +{ + sc->lmc_if.if_timer = 0; + sc->lmc_flags &= ~LMC_IFUP; + + sc->lmc_media->set_link_status(sc, 0); + lmc_led_off(sc, LMC_MII16_LED1); + + lmc_dec_reset(sc); + lmc_reset(sc); + sc->lmc_media->set_status(sc, NULL); +} + +static void +lmc_rx_intr(lmc_softc_t * const sc) +{ + lmc_ringinfo_t * const ri = &sc->lmc_rxinfo; + struct ifnet * const ifp = &sc->lmc_if; + int fillok = 1; + + sc->lmc_rxtick++; + + for (;;) { + tulip_desc_t *eop = ri->ri_nextin; + int total_len = 0, last_offset = 0; + struct mbuf *ms = NULL, *me = NULL; + int accept = 0; + + if (fillok && sc->lmc_rxq.ifq_len < LMC_RXQ_TARGET) + goto queue_mbuf; + + /* + * If the TULIP has no descriptors, there can't be any receive + * descriptors to process. + */ + if (eop == ri->ri_nextout) + break; + + /* + * 90% of the packets will fit in one descriptor. So we + * optimize for that case. + */ + if ((((volatile tulip_desc_t *) eop)->d_status & (TULIP_DSTS_OWNER|TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) == (TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) { + IF_DEQUEUE(&sc->lmc_rxq, ms); + me = ms; + } else { + /* + * If still owned by the TULIP, don't touch it. + */ + if (((volatile tulip_desc_t *)eop)->d_status & TULIP_DSTS_OWNER) + break; + + /* + * It is possible (though improbable unless the + * BIG_PACKET support is enabled or MCLBYTES < 1518) + * for a received packet to cross more than one + * receive descriptor. + */ + while ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_RxLASTDESC) == 0) { + if (++eop == ri->ri_last) + eop = ri->ri_first; + if (eop == ri->ri_nextout || ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER))) { + return; + } + total_len++; + } + + /* + * Dequeue the first buffer for the start of the + * packet. Hopefully this will be the only one we + * need to dequeue. However, if the packet consumed + * multiple descriptors, then we need to dequeue + * those buffers and chain to the starting mbuf. + * All buffers but the last buffer have the same + * length so we can set that now. (we add to + * last_offset instead of multiplying since we + * normally won't go into the loop and thereby + * saving a ourselves from doing a multiplication + * by 0 in the normal case). + */ + IF_DEQUEUE(&sc->lmc_rxq, ms); + for (me = ms; total_len > 0; total_len--) { + me->m_len = LMC_RX_BUFLEN; + last_offset += LMC_RX_BUFLEN; + IF_DEQUEUE(&sc->lmc_rxq, me->m_next); + me = me->m_next; + } + } + + /* + * Now get the size of received packet (minus the CRC). + */ + total_len = ((eop->d_status >> 16) & 0x7FFF); + if (sc->ictl.crc_length == 16) + total_len -= 2; + else + total_len -= 4; + + if ((sc->lmc_flags & LMC_RXIGNORE) == 0 + && ((eop->d_status & LMC_DSTS_ERRSUM) == 0 +#ifdef BIG_PACKET + || (total_len <= sc->lmc_if.if_mtu + PPP_HEADER_LEN + && (eop->d_status & TULIP_DSTS_RxOVERFLOW) == 0) +#endif + )) { + me->m_len = total_len - last_offset; +#if NBPFILTER > 0 + if (sc->lmc_bpf != NULL) { + if (me == ms) + LMC_BPF_TAP(sc, mtod(ms, caddr_t), total_len); + else + LMC_BPF_MTAP(sc, ms); + } +#endif + sc->lmc_flags |= LMC_RXACT; + accept = 1; + } else { + ifp->if_ierrors++; + if (eop->d_status & TULIP_DSTS_RxOVERFLOW) { + sc->lmc_dot3stats.dot3StatsInternalMacReceiveErrors++; + } + } + + ifp->if_ipackets++; + if (++eop == ri->ri_last) + eop = ri->ri_first; + ri->ri_nextin = eop; + + queue_mbuf: + /* + * Either we are priming the TULIP with mbufs (m == NULL) + * or we are about to accept an mbuf for the upper layers + * so we need to allocate an mbuf to replace it. If we + * can't replace it, send up it anyways. This may cause + * us to drop packets in the future but that's better than + * being caught in livelock. + * + * Note that if this packet crossed multiple descriptors + * we don't even try to reallocate all the mbufs here. + * Instead we rely on the test of the beginning of + * the loop to refill for the extra consumed mbufs. + */ + if (accept || ms == NULL) { + struct mbuf *m0; + MGETHDR(m0, M_DONTWAIT, MT_DATA); + if (m0 != NULL) { + MCLGET(m0, M_DONTWAIT); + if ((m0->m_flags & M_EXT) == 0) { + m_freem(m0); + m0 = NULL; + } + } + if (accept) { + ms->m_pkthdr.len = total_len; + ms->m_pkthdr.rcvif = ifp; +#if defined(__NetBSD__) || defined(__FreeBSD__) + sppp_input(ifp, ms); +#endif +#if defined(__bsdi__) + sc->lmc_p2pcom.p2p_input(&sc->lmc_p2pcom, ms); +#endif + } + ms = m0; + } + if (ms == NULL) { + /* + * Couldn't allocate a new buffer. Don't bother + * trying to replenish the receive queue. + */ + fillok = 0; + sc->lmc_flags |= LMC_RXBUFSLOW; + continue; + } + /* + * Now give the buffer(s) to the TULIP and save in our + * receive queue. + */ + do { + ri->ri_nextout->d_length1 = LMC_RX_BUFLEN; + ri->ri_nextout->d_addr1 = LMC_KVATOPHYS(sc, mtod(ms, caddr_t)); + ri->ri_nextout->d_status = TULIP_DSTS_OWNER; + if (++ri->ri_nextout == ri->ri_last) + ri->ri_nextout = ri->ri_first; + me = ms->m_next; + ms->m_next = NULL; + IF_ENQUEUE(&sc->lmc_rxq, ms); + } while ((ms = me) != NULL); + + if (sc->lmc_rxq.ifq_len >= LMC_RXQ_TARGET) + sc->lmc_flags &= ~LMC_RXBUFSLOW; + } +} + +static int +lmc_tx_intr(lmc_softc_t * const sc) +{ + lmc_ringinfo_t * const ri = &sc->lmc_txinfo; + struct mbuf *m; + int xmits = 0; + int descs = 0; + + sc->lmc_txtick++; + + while (ri->ri_free < ri->ri_max) { + u_int32_t d_flag; + if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER) + break; + + d_flag = ri->ri_nextin->d_flag; + if (d_flag & TULIP_DFLAG_TxLASTSEG) { + const u_int32_t d_status = ri->ri_nextin->d_status; + IF_DEQUEUE(&sc->lmc_txq, m); + if (m != NULL) { +#if NBPFILTER > 0 + if (sc->lmc_bpf != NULL) + LMC_BPF_MTAP(sc, m); +#endif + m_freem(m); +#if defined(LMC_DEBUG) + } else { + printf(LMC_PRINTF_FMT ": tx_intr: failed to dequeue mbuf?!?\n", LMC_PRINTF_ARGS); +#endif + } + xmits++; + if (d_status & LMC_DSTS_ERRSUM) { + sc->lmc_if.if_oerrors++; + if (d_status & TULIP_DSTS_TxUNDERFLOW) + sc->lmc_dot3stats.dot3StatsInternalTransmitUnderflows++; + } else { + if (d_status & TULIP_DSTS_TxDEFERRED) + sc->lmc_dot3stats.dot3StatsDeferredTransmissions++; + } + } + + if (++ri->ri_nextin == ri->ri_last) + ri->ri_nextin = ri->ri_first; + + ri->ri_free++; + descs++; + sc->lmc_if.if_flags &= ~IFF_OACTIVE; + } + /* + * If nothing left to transmit, disable the timer. + * Else if progress, reset the timer back to 2 ticks. + */ + sc->lmc_if.if_opackets += xmits; + + return descs; +} + +static void +lmc_print_abnormal_interrupt (lmc_softc_t * const sc, u_int32_t csr) +{ + printf(LMC_PRINTF_FMT ": Abnormal interrupt\n", LMC_PRINTF_ARGS); +} + +static void +lmc_intr_handler(lmc_softc_t * const sc, int *progress_p) +{ + u_int32_t csr; + + while ((csr = LMC_CSR_READ(sc, csr_status)) & sc->lmc_intrmask) { + +#if defined(__NetBSD__) +#if NRND > 0 + rnd_add_uint32(&sc->lmc_rndsource, csr); +#endif +#endif + + *progress_p = 1; + LMC_CSR_WRITE(sc, csr_status, csr); + + if (csr & TULIP_STS_SYSERROR) { + sc->lmc_last_system_error = (csr & TULIP_STS_ERRORMASK) >> TULIP_STS_ERR_SHIFT; + if (sc->lmc_flags & LMC_NOMESSAGES) { + sc->lmc_flags |= LMC_SYSTEMERROR; + } else { + printf(LMC_PRINTF_FMT ": system error: %s\n", + LMC_PRINTF_ARGS, + lmc_system_errors[sc->lmc_last_system_error]); + } + sc->lmc_flags |= LMC_NEEDRESET; + sc->lmc_system_errors++; + break; + } + if (csr & (TULIP_STS_RXINTR | TULIP_STS_RXNOBUF)) { + u_int32_t misses = LMC_CSR_READ(sc, csr_missed_frames); + if (csr & TULIP_STS_RXNOBUF) + sc->lmc_dot3stats.dot3StatsMissedFrames += misses & 0xFFFF; + /* + * Pass 2.[012] of the 21140A-A[CDE] may hang and/or corrupt data + * on receive overflows. + */ + if ((misses & 0x0FFE0000) && (sc->lmc_features & LMC_HAVE_RXBADOVRFLW)) { + sc->lmc_dot3stats.dot3StatsInternalMacReceiveErrors++; + /* + * Stop the receiver process and spin until it's stopped. + * Tell rx_intr to drop the packets it dequeues. + */ + LMC_CSR_WRITE(sc, csr_command, sc->lmc_cmdmode & ~TULIP_CMD_RXRUN); + while ((LMC_CSR_READ(sc, csr_status) & TULIP_STS_RXSTOPPED) == 0) + ; + LMC_CSR_WRITE(sc, csr_status, TULIP_STS_RXSTOPPED); + sc->lmc_flags |= LMC_RXIGNORE; + } + lmc_rx_intr(sc); + if (sc->lmc_flags & LMC_RXIGNORE) { + /* + * Restart the receiver. + */ + sc->lmc_flags &= ~LMC_RXIGNORE; + LMC_CSR_WRITE(sc, csr_command, sc->lmc_cmdmode); + } + } + if (csr & TULIP_STS_ABNRMLINTR) { + u_int32_t tmp = csr & sc->lmc_intrmask + & ~(TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR); + if (csr & TULIP_STS_TXUNDERFLOW) { + if ((sc->lmc_cmdmode & TULIP_CMD_THRESHOLDCTL) != TULIP_CMD_THRSHLD160) { + sc->lmc_cmdmode += TULIP_CMD_THRSHLD96; + sc->lmc_flags |= LMC_NEWTXTHRESH; + } else if (sc->lmc_features & LMC_HAVE_STOREFWD) { + sc->lmc_cmdmode |= TULIP_CMD_STOREFWD; + sc->lmc_flags |= LMC_NEWTXTHRESH; + } + } + if (sc->lmc_flags & LMC_NOMESSAGES) { + sc->lmc_statusbits |= tmp; + } else { + lmc_print_abnormal_interrupt(sc, tmp); + sc->lmc_flags |= LMC_NOMESSAGES; + } + LMC_CSR_WRITE(sc, csr_command, sc->lmc_cmdmode); + } + + if (csr & TULIP_STS_TXINTR) + lmc_tx_intr(sc); + + if (sc->lmc_flags & LMC_WANTTXSTART) + lmc_ifstart(&sc->lmc_if); + } +} + +static lmc_intrfunc_t +lmc_intr_normal(void *arg) +{ + lmc_softc_t * sc = (lmc_softc_t *) arg; + int progress = 0; + + lmc_intr_handler(sc, &progress); + +#if !defined(LMC_VOID_INTRFUNC) + return progress; +#endif +} + +static struct mbuf * +lmc_mbuf_compress(struct mbuf *m) +{ + struct mbuf *m0; +#if MCLBYTES >= LMC_MTU + PPP_HEADER_LEN && !defined(BIG_PACKET) + MGETHDR(m0, M_DONTWAIT, MT_DATA); + if (m0 != NULL) { + if (m->m_pkthdr.len > MHLEN) { + MCLGET(m0, M_DONTWAIT); + if ((m0->m_flags & M_EXT) == 0) { + m_freem(m); + m_freem(m0); + return NULL; + } + } + m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t)); + m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len; + } +#else + int mlen = MHLEN; + int len = m->m_pkthdr.len; + struct mbuf **mp = &m0; + + while (len > 0) { + if (mlen == MHLEN) { + MGETHDR(*mp, M_DONTWAIT, MT_DATA); + } else { + MGET(*mp, M_DONTWAIT, MT_DATA); + } + if (*mp == NULL) { + m_freem(m0); + m0 = NULL; + break; + } + if (len > MLEN) { + MCLGET(*mp, M_DONTWAIT); + if (((*mp)->m_flags & M_EXT) == 0) { + m_freem(m0); + m0 = NULL; + break; + } + (*mp)->m_len = (len <= MCLBYTES ? len : MCLBYTES); + } else { + (*mp)->m_len = (len <= mlen ? len : mlen); + } + m_copydata(m, m->m_pkthdr.len - len, + (*mp)->m_len, mtod((*mp), caddr_t)); + len -= (*mp)->m_len; + mp = &(*mp)->m_next; + mlen = MLEN; + } +#endif + m_freem(m); + return m0; +} + +/* + * queue the mbuf handed to us for the interface. If we cannot + * queue it, return the mbuf. Return NULL if the mbuf was queued. + */ +static struct mbuf * +lmc_txput(lmc_softc_t * const sc, struct mbuf *m) +{ + lmc_ringinfo_t * const ri = &sc->lmc_txinfo; + tulip_desc_t *eop, *nextout; + int segcnt, free; + u_int32_t d_status; + struct mbuf *m0; + +#if defined(LMC_DEBUG) + if ((sc->lmc_cmdmode & TULIP_CMD_TXRUN) == 0) { + printf(LMC_PRINTF_FMT ": txput: tx not running\n", + LMC_PRINTF_ARGS); + sc->lmc_flags |= LMC_WANTTXSTART; + goto finish; + } +#endif + + /* + * Now we try to fill in our transmit descriptors. This is + * a bit reminiscent of going on the Ark two by two + * since each descriptor for the TULIP can describe + * two buffers. So we advance through packet filling + * each of the two entries at a time to fill each + * descriptor. Clear the first and last segment bits + * in each descriptor (actually just clear everything + * but the end-of-ring or chain bits) to make sure + * we don't get messed up by previously sent packets. + * + * We may fail to put the entire packet on the ring if + * there is either not enough ring entries free or if the + * packet has more than MAX_TXSEG segments. In the former + * case we will just wait for the ring to empty. In the + * latter case we have to recopy. + */ + again: + d_status = 0; + eop = nextout = ri->ri_nextout; + m0 = m; + segcnt = 0; + free = ri->ri_free; + do { + int len = m0->m_len; + caddr_t addr = mtod(m0, caddr_t); + unsigned clsize = CLBYTES - (((u_long) addr) & (CLBYTES-1)); + + while (len > 0) { + unsigned slen = min(len, clsize); +#ifdef BIG_PACKET + int partial = 0; + if (slen >= 2048) + slen = 2040, partial = 1; +#endif + segcnt++; + if (segcnt > LMC_MAX_TXSEG) { + /* + * The packet exceeds the number of transmit + * buffer entries that we can use for one + * packet, so we have recopy it into one mbuf + * and then try again. + */ + m = lmc_mbuf_compress(m); + if (m == NULL) + goto finish; + goto again; + } + if (segcnt & 1) { + if (--free == 0) { + /* + * See if there's any unclaimed space + * in the transmit ring. + */ + if ((free += lmc_tx_intr(sc)) == 0) { + /* + * There's no more room but + * since nothing has been + * committed at this point, + * just show output is active, + * put back the mbuf and + * return. + */ + sc->lmc_flags |= LMC_WANTTXSTART; + goto finish; + } + } + eop = nextout; + if (++nextout == ri->ri_last) + nextout = ri->ri_first; + eop->d_flag &= TULIP_DFLAG_ENDRING; + eop->d_flag |= TULIP_DFLAG_TxNOPADDING; + if (sc->ictl.crc_length == 16) + eop->d_flag |= TULIP_DFLAG_TxHASCRC; + eop->d_status = d_status; + eop->d_addr1 = LMC_KVATOPHYS(sc, addr); + eop->d_length1 = slen; + } else { + /* + * Fill in second half of descriptor + */ + eop->d_addr2 = LMC_KVATOPHYS(sc, addr); + eop->d_length2 = slen; + } + d_status = TULIP_DSTS_OWNER; + len -= slen; + addr += slen; +#ifdef BIG_PACKET + if (partial) + continue; +#endif + clsize = CLBYTES; + } + } while ((m0 = m0->m_next) != NULL); + + + /* + * The descriptors have been filled in. Now get ready + * to transmit. + */ + IF_ENQUEUE(&sc->lmc_txq, m); + m = NULL; + + /* + * Make sure the next descriptor after this packet is owned + * by us since it may have been set up above if we ran out + * of room in the ring. + */ + nextout->d_status = 0; + + /* + * If we only used the first segment of the last descriptor, + * make sure the second segment will not be used. + */ + if (segcnt & 1) { + eop->d_addr2 = 0; + eop->d_length2 = 0; + } + + /* + * Mark the last and first segments, indicate we want a transmit + * complete interrupt, and tell it to transmit! + */ + eop->d_flag |= TULIP_DFLAG_TxLASTSEG | TULIP_DFLAG_TxWANTINTR; + + /* + * Note that ri->ri_nextout is still the start of the packet + * and until we set the OWNER bit, we can still back out of + * everything we have done. + */ + ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG; + ri->ri_nextout->d_status = TULIP_DSTS_OWNER; + + LMC_CSR_WRITE(sc, csr_txpoll, 1); + + /* + * This advances the ring for us. + */ + ri->ri_nextout = nextout; + ri->ri_free = free; + + /* + * switch back to the single queueing ifstart. + */ + sc->lmc_flags &= ~LMC_WANTTXSTART; + sc->lmc_if.if_start = lmc_ifstart_one; + + /* + * If we want a txstart, there must be not enough space in the + * transmit ring. So we want to enable transmit done interrupts + * so we can immediately reclaim some space. When the transmit + * interrupt is posted, the interrupt handler will call tx_intr + * to reclaim space and then txstart (since WANTTXSTART is set). + * txstart will move the packet into the transmit ring and clear + * WANTTXSTART thereby causing TXINTR to be cleared. + */ + finish: + if (sc->lmc_flags & LMC_WANTTXSTART) { + sc->lmc_if.if_flags |= IFF_OACTIVE; + sc->lmc_if.if_start = lmc_ifstart; + } + + return m; +} + + +/* + * This routine is entered at splnet() (splsoftnet() on NetBSD) + */ +static int +lmc_ifioctl(struct ifnet * ifp, ioctl_cmd_t cmd, caddr_t data) +{ + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); +#if defined(__NetBSD__) || defined(__FreeBSD__) + lmc_spl_t s; +#endif + int error = 0; + struct ifreq *ifr = (struct ifreq *)data; + u_int32_t new_state; + u_int32_t old_state; + lmc_ctl_t ctl; + +#if defined(__NetBSD__) || defined(__FreeBSD__) + s = LMC_RAISESPL(); +#endif + + switch (cmd) { + case LMCIOCGINFO: + error = copyout(&sc->ictl, ifr->ifr_data, sizeof(lmc_ctl_t)); + + goto out; + break; + + case LMCIOCSINFO: +#if 0 /* XXX */ + error = suser(p->p_ucred, &p->p_acflag); + if (error) + goto out; +#endif + + error = copyin(ifr->ifr_data, &ctl, sizeof(lmc_ctl_t)); + if (error != 0) + goto out; + + sc->lmc_media->set_status(sc, &ctl); + + goto out; + break; + +#if defined(__NetBSD__) || defined(__FreeBSD__) + case SIOCSIFMTU: + /* + * Don't allow the MTU to get larger than we can handle + */ + if (ifr->ifr_mtu > LMC_MTU) { + error = EINVAL; + goto out; + } +#endif + } + +#if defined(__NetBSD__) || defined(__FreeBSD__) + /* + * call the sppp ioctl layer + */ + error = sppp_ioctl(ifp, cmd, data); + if (error != 0) + goto out; +#endif + +#if defined(__bsdi__) + error = p2p_ioctl(ifp, cmd, data); +#endif + +#if defined(__NetBSD__) || defined(__FreeBSD__) + /* + * If we are transitioning from up to down or down to up, call + * our init routine. + */ + new_state = ifp->if_flags & IFF_UP; + old_state = sc->lmc_flags & LMC_IFUP; + + if (new_state && !old_state) + lmc_ifup(sc); + else if (!new_state && old_state) + lmc_ifdown(sc); +#endif + + out: +#if defined(__NetBSD__) || defined(__FreeBSD__) + LMC_RESTORESPL(s); +#endif + + return error; +} + +/* + * These routines gets called at device spl (from sppp_output). + */ + +#if defined(__NetBSD__) || defined(__FreeBSD__) +static ifnet_ret_t +lmc_ifstart(struct ifnet * const ifp) +{ + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); + struct mbuf *m; + + if (sc->lmc_flags & LMC_IFUP) { + while (sppp_isempty(ifp) == 0) { + m = sppp_dequeue(ifp); + if ((m = lmc_txput(sc, m)) != NULL) { + IF_PREPEND(&((struct sppp *)ifp)->pp_fastq, m); + break; + } + } + LMC_CSR_WRITE(sc, csr_txpoll, 1); + } +} + +static ifnet_ret_t +lmc_ifstart_one(struct ifnet * const ifp) +{ + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); + struct mbuf *m; + + if ((sc->lmc_flags & LMC_IFUP) && (sppp_isempty(ifp) == 0)) { + m = sppp_dequeue(ifp); + if ((m = lmc_txput(sc, m)) != NULL) { + IF_PREPEND(&((struct sppp *)ifp)->pp_fastq, m); + } + LMC_CSR_WRITE(sc, csr_txpoll, 1); + } +} +#endif + +#if defined(__bsdi__) +static ifnet_ret_t +lmc_ifstart(struct ifnet * const ifp) +{ + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); + struct mbuf *m; + struct ifqueue *ifq; + + if ((sc->lmc_flags & LMC_IFUP) == 0) + return; + + for (;;) { + ifq = &sc->lmc_p2pcom.p2p_isnd; + + m = ifq->ifq_head; + if (m == NULL) { + ifq = &sc->lmc_if.if_snd; + m = ifq->ifq_head; + } + if (m == NULL) + break; + IF_DEQUEUE(ifq, m); + + m = lmc_txput(sc, m); + if (m != NULL) { + IF_PREPEND(ifq, m); + break; + } + } + + LMC_CSR_WRITE(sc, csr_txpoll, 1); +} + +static ifnet_ret_t +lmc_ifstart_one(struct ifnet * const ifp) +{ + lmc_softc_t * const sc = LMC_IFP_TO_SOFTC(ifp); + struct mbuf *m; + struct ifqueue *ifq; + + if ((sc->lmc_flags & LMC_IFUP) == 0) + return; + + ifq = &sc->lmc_p2pcom.p2p_isnd; + + m = ifq->ifq_head; + if (m == NULL) { + ifq = &sc->lmc_if.if_snd; + m = ifq->ifq_head; + } + if (m == NULL) + return 0; + IF_DEQUEUE(ifq, m); + + m = lmc_txput(sc, m); + if (m != NULL) + IF_PREPEND(ifq, m); + + LMC_CSR_WRITE(sc, csr_txpoll, 1); +} +#endif + +#if defined(__bsdi__) +int +lmc_getmdm(struct p2pcom *pp, caddr_t b) +{ + lmc_softc_t *sc = LMC_UNIT_TO_SOFTC(pp->p2p_if.if_unit); + + if (sc->lmc_media->get_link_status(sc)) { + *(int *)b = TIOCM_CAR; + } else { + *(int *)b = 0; + } + + return (0); +} + +int +lmc_mdmctl(struct p2pcom *pp, int flag) +{ + lmc_softc_t *sc = LMC_UNIT_TO_SOFTC(pp->p2p_if.if_unit); + + sc->lmc_media->set_link_status(sc, flag); + + if (flag) + if ((sc->lmc_flags & LMC_IFUP) == 0) + lmc_ifup(sc); + else + if ((sc->lmc_flags & LMC_IFUP) == LMC_IFUP) + lmc_ifdown(sc); + + return (0); +} +#endif + +/* + * Set up the OS interface magic and attach to the operating system + * network services. + */ +static void +lmc_attach(lmc_softc_t * const sc) +{ + struct ifnet * const ifp = &sc->lmc_if; + + ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST; + ifp->if_ioctl = lmc_ifioctl; + ifp->if_start = lmc_ifstart; + ifp->if_watchdog = lmc_watchdog; + ifp->if_timer = 1; + ifp->if_mtu = LMC_MTU; + +#if defined(__bsdi__) + ifp->if_type = IFT_NONE; + ifp->if_unit = (sc->lmc_dev.dv_unit); +#endif + + if_attach(ifp); + +#if defined(__NetBSD__) || defined(__FreeBSD__) + sppp_attach((struct ifnet *)&sc->lmc_sppp); + sc->lmc_sppp.pp_flags = PP_CISCO | PP_KEEPALIVE; +#endif +#if defined(__bsdi__) + sc->lmc_p2pcom.p2p_mdmctl = lmc_mdmctl; + sc->lmc_p2pcom.p2p_getmdm = lmc_getmdm; + p2p_attach(&sc->lmc_p2pcom); +#endif + +#if NBPFILTER > 0 + LMC_BPF_ATTACH(sc); +#endif + +#if defined(__NetBSD__) && NRND > 0 + rnd_attach_source(&sc->lmc_rndsource, sc->lmc_dev.dv_xname, + RND_TYPE_NET); +#endif + + /* + * turn off those LEDs... + */ + sc->lmc_miireg16 |= LMC_MII16_LED_ALL; + lmc_led_on(sc, LMC_MII16_LED0); +} + +static void +lmc_initring(lmc_softc_t * const sc, lmc_ringinfo_t * const ri, + tulip_desc_t *descs, int ndescs) +{ + ri->ri_max = ndescs; + ri->ri_first = descs; + ri->ri_last = ri->ri_first + ri->ri_max; + bzero((caddr_t) ri->ri_first, sizeof(ri->ri_first[0]) * ri->ri_max); + ri->ri_last[-1].d_flag = TULIP_DFLAG_ENDRING; +} + +/* + * This is the PCI configuration support. + */ +#define PCI_CFID 0x00 /* Configuration ID */ +#define PCI_CFCS 0x04 /* Configurtion Command/Status */ +#define PCI_CFRV 0x08 /* Configuration Revision */ +#define PCI_CFLT 0x0c /* Configuration Latency Timer */ +#define PCI_CBIO 0x10 /* Configuration Base IO Address */ +#define PCI_CBMA 0x14 /* Configuration Base Memory Address */ +#define PCI_SSID 0x2c /* subsystem config register */ +#define PCI_CFIT 0x3c /* Configuration Interrupt */ +#define PCI_CFDA 0x40 /* Configuration Driver Area */ + + + +#if defined(__NetBSD__) +#include "dev/pci/if_lmc_nbsd.c" +#elif defined(__FreeBSD__) +#include "pci/if_lmc_fbsd.c" +#elif defined(__bsdi__) +#include "i386/pci/if_lmc_bsdi.c" +#else +#error "This driver only works on NetBSD, FreeBSD, or BSDi" +#endif diff --git a/sys/dev/lmc/if_lmc_common.c b/sys/dev/lmc/if_lmc_common.c new file mode 100644 index 0000000..d4ab484 --- /dev/null +++ b/sys/dev/lmc/if_lmc_common.c @@ -0,0 +1,270 @@ +/* $FreeBSD$ */ +/* From NetBSD: if_de.c,v 1.56.2.1 1997/10/27 02:13:25 thorpej Exp */ +/* $Id: if_lmc_common.c,v 1.12 1999/03/01 15:22:37 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +/* + * the dec chip has its own idea of what a receive error is, but we don't + * want to use it, as it will get the crc error wrong when 16-bit + * crcs are used. So, we only care about certain conditions. + */ +#ifndef TULIP_DSTS_RxMIIERR +#define TULIP_DSTS_RxMIIERR 0x00000008 +#endif +#define LMC_DSTS_ERRSUM (TULIP_DSTS_RxMIIERR) + +static void +lmc_gpio_mkinput(lmc_softc_t * const sc, u_int32_t bits) +{ + sc->lmc_gpio_io &= ~bits; + LMC_CSR_WRITE(sc, csr_gp, TULIP_GP_PINSET | (sc->lmc_gpio_io)); +} + +static void +lmc_gpio_mkoutput(lmc_softc_t * const sc, u_int32_t bits) +{ + sc->lmc_gpio_io |= bits; + LMC_CSR_WRITE(sc, csr_gp, TULIP_GP_PINSET | (sc->lmc_gpio_io)); +} + +static void +lmc_led_on(lmc_softc_t * const sc, u_int32_t led) +{ + sc->lmc_miireg16 &= ~led; + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +static void +lmc_led_off(lmc_softc_t * const sc, u_int32_t led) +{ + sc->lmc_miireg16 |= led; + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +static void +lmc_reset(lmc_softc_t * const sc) +{ + sc->lmc_miireg16 |= LMC_MII16_FIFO_RESET; + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); + + sc->lmc_miireg16 &= ~LMC_MII16_FIFO_RESET; + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); + + /* + * make some of the GPIO pins be outputs + */ + lmc_gpio_mkoutput(sc, LMC_GEP_DP | LMC_GEP_RESET); + + /* + * drive DP and RESET low to force configuration. This also forces + * the transmitter clock to be internal, but we expect to reset + * that later anyway. + */ + sc->lmc_gpio &= ~(LMC_GEP_DP | LMC_GEP_RESET); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + + /* + * hold for more than 10 microseconds + */ + DELAY(50); + + /* + * stop driving Xilinx-related signals + */ + lmc_gpio_mkinput(sc, LMC_GEP_DP | LMC_GEP_RESET); + + /* + * busy wait for the chip to reset + */ + while ((LMC_CSR_READ(sc, csr_gp) & LMC_GEP_DP) == 0) + ; + + /* + * Call media specific init routine + */ + sc->lmc_media->init(sc); +} + +static void +lmc_dec_reset(lmc_softc_t * const sc) +{ +#ifndef __linux__ + lmc_ringinfo_t *ri; + tulip_desc_t *di; +#endif + u_int32_t val; + + /* + * disable all interrupts + */ + sc->lmc_intrmask = 0; + LMC_CSR_WRITE(sc, csr_intr, sc->lmc_intrmask); + + /* + * we are, obviously, down. + */ +#ifndef __linux__ + sc->lmc_flags &= ~(LMC_IFUP | LMC_MODEMOK); + + DP(("lmc_dec_reset\n")); +#endif + + /* + * Reset the chip with a software reset command. + * Wait 10 microseconds (actually 50 PCI cycles but at + * 33MHz that comes to two microseconds but wait a + * bit longer anyways) + */ + LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(10); + sc->lmc_cmdmode = LMC_CSR_READ(sc, csr_command); + + /* + * We want: + * no ethernet address in frames we write + * disable padding (txdesc, padding disable) + * ignore runt frames (rdes0 bit 15) + * no receiver watchdog or transmitter jabber timer + * (csr15 bit 0,14 == 1) + * if using 16-bit CRC, turn off CRC (trans desc, crc disable) + */ + +#ifndef TULIP_CMD_RECEIVEALL +#define TULIP_CMD_RECEIVEALL 0x40000000L +#endif + + sc->lmc_cmdmode |= ( TULIP_CMD_PROMISCUOUS + | TULIP_CMD_FULLDUPLEX + | TULIP_CMD_PASSBADPKT + | TULIP_CMD_NOHEARTBEAT + | TULIP_CMD_PORTSELECT + | TULIP_CMD_RECEIVEALL + | TULIP_CMD_MUSTBEONE + ); + sc->lmc_cmdmode &= ~( TULIP_CMD_OPERMODE + | TULIP_CMD_THRESHOLDCTL + | TULIP_CMD_STOREFWD + | TULIP_CMD_TXTHRSHLDCTL + ); + + LMC_CSR_WRITE(sc, csr_command, sc->lmc_cmdmode); + + /* + * disable receiver watchdog and transmit jabber + */ + val = LMC_CSR_READ(sc, csr_sia_general); + val |= (TULIP_WATCHDOG_TXDISABLE | TULIP_WATCHDOG_RXDISABLE); + LMC_CSR_WRITE(sc, csr_sia_general, val); + + /* + * turn off those LEDs... + */ + sc->lmc_miireg16 |= LMC_MII16_LED_ALL; + lmc_led_on(sc, LMC_MII16_LED0); + +#ifndef __linux__ + /* + * reprogram the tx desc, rx desc, and PCI bus options + */ + LMC_CSR_WRITE(sc, csr_txlist, + LMC_KVATOPHYS(sc, &sc->lmc_txinfo.ri_first[0])); + LMC_CSR_WRITE(sc, csr_rxlist, + LMC_KVATOPHYS(sc, &sc->lmc_rxinfo.ri_first[0])); + LMC_CSR_WRITE(sc, csr_busmode, + (1 << (LMC_BURSTSIZE(sc->lmc_unit) + 8)) + |TULIP_BUSMODE_CACHE_ALIGN8 + |TULIP_BUSMODE_READMULTIPLE + |(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0)); + + sc->lmc_txq.ifq_maxlen = LMC_TXDESCS; + + /* + * Free all the mbufs that were on the transmit ring. + */ + for (;;) { + struct mbuf *m; + + IF_DEQUEUE(&sc->lmc_txq, m); + if (m == NULL) + break; + m_freem(m); + } + + /* + * reset descriptor state and reclaim all descriptors. + */ + ri = &sc->lmc_txinfo; + ri->ri_nextin = ri->ri_nextout = ri->ri_first; + ri->ri_free = ri->ri_max; + for (di = ri->ri_first; di < ri->ri_last; di++) + di->d_status = 0; + + /* + * We need to collect all the mbufs were on the + * receive ring before we reinit it either to put + * them back on or to know if we have to allocate + * more. + */ + ri = &sc->lmc_rxinfo; + ri->ri_nextin = ri->ri_nextout = ri->ri_first; + ri->ri_free = ri->ri_max; + for (di = ri->ri_first; di < ri->ri_last; di++) { + di->d_status = 0; + di->d_length1 = 0; di->d_addr1 = 0; + di->d_length2 = 0; di->d_addr2 = 0; + } + for (;;) { + struct mbuf *m; + IF_DEQUEUE(&sc->lmc_rxq, m); + if (m == NULL) + break; + m_freem(m); + } +#endif +} + +static void +lmc_initcsrs(lmc_softc_t * const sc, lmc_csrptr_t csr_base, + size_t csr_size) +{ + sc->lmc_csrs.csr_busmode = csr_base + 0 * csr_size; + sc->lmc_csrs.csr_txpoll = csr_base + 1 * csr_size; + sc->lmc_csrs.csr_rxpoll = csr_base + 2 * csr_size; + sc->lmc_csrs.csr_rxlist = csr_base + 3 * csr_size; + sc->lmc_csrs.csr_txlist = csr_base + 4 * csr_size; + sc->lmc_csrs.csr_status = csr_base + 5 * csr_size; + sc->lmc_csrs.csr_command = csr_base + 6 * csr_size; + sc->lmc_csrs.csr_intr = csr_base + 7 * csr_size; + sc->lmc_csrs.csr_missed_frames = csr_base + 8 * csr_size; + sc->lmc_csrs.csr_9 = csr_base + 9 * csr_size; + sc->lmc_csrs.csr_10 = csr_base + 10 * csr_size; + sc->lmc_csrs.csr_11 = csr_base + 11 * csr_size; + sc->lmc_csrs.csr_12 = csr_base + 12 * csr_size; + sc->lmc_csrs.csr_13 = csr_base + 13 * csr_size; + sc->lmc_csrs.csr_14 = csr_base + 14 * csr_size; + sc->lmc_csrs.csr_15 = csr_base + 15 * csr_size; +} diff --git a/sys/dev/lmc/if_lmc_fbsd3.c b/sys/dev/lmc/if_lmc_fbsd3.c new file mode 100644 index 0000000..f2344f4 --- /dev/null +++ b/sys/dev/lmc/if_lmc_fbsd3.c @@ -0,0 +1,274 @@ +/* $FreeBSD$ */ +/* $Id: if_lmc_fbsd.c,v 1.3 1999/01/12 13:27:42 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +/* + * This file is INCLUDED (gross, I know, but...) + */ + +#define PCI_CONF_WRITE(r, v) pci_conf_write(config_id, (r), (v)) +#define PCI_CONF_READ(r) pci_conf_read(config_id, (r)) +#define PCI_GETBUSDEVINFO(sc) (sc)->lmc_pci_busno = (config_id->bus), \ + (sc)->lmc_pci_devno = (config_id->slot) + +static void lmc_shutdown(int howto, void * arg); + +#if defined(LMC_DEVCONF) +static int +lmc_pci_shutdown(struct kern_devconf * const kdc, int force) +{ + if (kdc->kdc_unit < LMC_MAX_DEVICES) { + lmc_softc_t * const sc = LMC_UNIT_TO_SOFTC(kdc->kdc_unit); + if (sc != NULL) + lmc_shutdown(0, sc); + } + (void) dev_detach(kdc); + return 0; +} +#endif + +static char* +lmc_pci_probe(pcici_t config_id, pcidi_t device_id) +{ + u_int32_t id; + + /* + * check first for the DEC chip we expect to find. We expect + * 21140A, pass 2.2 or higher. + */ + if (PCI_VENDORID(device_id) != DEC_VENDORID) + return NULL; + if (PCI_CHIPID(device_id) != CHIPID_21140) + return NULL; + id = pci_conf_read(config_id, PCI_CFRV) & 0xff; + if (id < 0x22) + return NULL; + + /* + * Next, check the subsystem ID and see if it matches what we + * expect. + */ + id = pci_conf_read(config_id, PCI_SSID); + if (PCI_VENDORID(id) != PCI_VENDOR_LMC) + return NULL; + if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_HSSI) { + return "Lan Media Corporation HSSI"; + } + if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_DS3) { + return "Lan Media Corporation DS3"; + } + if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_SSI) { + return "Lan Media Corporation SSI"; + } + if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_T1) { + return "Lan Media Coporation T1"; + } + + return NULL; +} + +static void lmc_pci_attach(pcici_t config_id, int unit); +static u_long lmc_pci_count; + +struct pci_device lmcdevice = { + "lmc", + lmc_pci_probe, + lmc_pci_attach, + &lmc_pci_count, +#if defined(LMC_DEVCONF) + lmc_pci_shutdown, +#endif +}; + +DATA_SET (pcidevice_set, lmcdevice); + +static void +lmc_pci_attach(pcici_t config_id, int unit) +{ + lmc_softc_t *sc; + int retval, idx; + u_int32_t revinfo, cfdainfo, id, ssid; +#if !defined(LMC_IOMAPPED) + vm_offset_t pa_csrs; +#endif + unsigned csroffset = LMC_PCI_CSROFFSET; + unsigned csrsize = LMC_PCI_CSRSIZE; + lmc_csrptr_t csr_base; + lmc_spl_t s; + lmc_intrfunc_t (*intr_rtn)(void *) = lmc_intr_normal; + + if (unit >= LMC_MAX_DEVICES) { + printf("lmc%d", unit); + printf(": not configured; limit of %d reached or exceeded\n", + LMC_MAX_DEVICES); + return; + } + + /* + * allocate memory for the softc + */ + sc = (lmc_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT); + if (sc == NULL) + return; + bzero(sc, sizeof(*sc)); /* Zero out the softc*/ + + revinfo = PCI_CONF_READ(PCI_CFRV) & 0xFF; + id = PCI_CONF_READ(PCI_CFID); + cfdainfo = PCI_CONF_READ(PCI_CFDA); + ssid = pci_conf_read(config_id, PCI_SSID); + switch (PCI_CHIPID(ssid)) { + case PCI_PRODUCT_LMC_HSSI: + sc->lmc_media = &lmc_hssi_media; + break; + case PCI_PRODUCT_LMC_DS3: + sc->lmc_media = &lmc_ds3_media; + break; + case PCI_PRODUCT_LMC_SSI: + sc->lmc_media = &lmc_ssi_media; + break; + case PCI_PRODUCT_LMC_T1: + sc->lmc_media = &lmc_t1_media; + break; + } + + /* + * allocate memory for the device descriptors + */ + sc->lmc_rxdescs = (tulip_desc_t *)malloc(sizeof(tulip_desc_t) * LMC_RXDESCS, M_DEVBUF, M_NOWAIT); + sc->lmc_txdescs = (tulip_desc_t *)malloc(sizeof(tulip_desc_t) * LMC_TXDESCS, M_DEVBUF, M_NOWAIT); + if (sc->lmc_rxdescs == NULL || sc->lmc_txdescs == NULL) { + if (sc->lmc_rxdescs) + free((caddr_t) sc->lmc_rxdescs, M_DEVBUF); + if (sc->lmc_txdescs) + free((caddr_t) sc->lmc_txdescs, M_DEVBUF); + free((caddr_t) sc, M_DEVBUF); + return; + } + + PCI_GETBUSDEVINFO(sc); + + sc->lmc_chipid = LMC_21140A; + sc->lmc_features |= LMC_HAVE_STOREFWD; + if (sc->lmc_chipid == LMC_21140A && revinfo <= 0x22) + sc->lmc_features |= LMC_HAVE_RXBADOVRFLW; + + if (cfdainfo & (TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE)) { + cfdainfo &= ~(TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE); + PCI_CONF_WRITE(PCI_CFDA, cfdainfo); + DELAY(11 * 1000); + } + + sc->lmc_unit = unit; + sc->lmc_name = "lmc"; + sc->lmc_revinfo = revinfo; +#if BSD >= 199506 + sc->lmc_if.if_softc = sc; +#endif +#if defined(LMC_IOMAPPED) + retval = pci_map_port(config_id, PCI_CBIO, &csr_base); +#else + retval = pci_map_mem(config_id, PCI_CBMA, (vm_offset_t *) &csr_base, + &pa_csrs); +#endif + + if (!retval) { + free((caddr_t) sc->lmc_rxdescs, M_DEVBUF); + free((caddr_t) sc->lmc_txdescs, M_DEVBUF); + free((caddr_t) sc, M_DEVBUF); + return; + } + tulips[unit] = sc; + + lmc_initcsrs(sc, csr_base + csroffset, csrsize); + lmc_initring(sc, &sc->lmc_rxinfo, sc->lmc_rxdescs, + LMC_RXDESCS); + lmc_initring(sc, &sc->lmc_txinfo, sc->lmc_txdescs, + LMC_TXDESCS); + + lmc_gpio_mkinput(sc, 0xff); + sc->lmc_gpio = 0; /* drive no signals yet */ + + sc->lmc_media->defaults(sc); + + sc->lmc_media->set_link_status(sc, 0); /* down */ + + /* + * Make sure there won't be any interrupts or such... + */ + LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + /* + * Wait 10 microseconds (actually 50 PCI cycles but at + * 33MHz that comes to two microseconds but wait a + * bit longer anyways) + */ + DELAY(100); + + switch (sc->ictl.cardtype) { + case LMC_CARDTYPE_HSSI: + printf(LMC_PRINTF_FMT ": HSSI, ", LMC_PRINTF_ARGS); + break; + case LMC_CARDTYPE_DS3: + printf(LMC_PRINTF_FMT ": DS3, ", LMC_PRINTF_ARGS); + break; + case LMC_CARDTYPE_SSI: + printf(LMC_PRINTF_FMT ": SSI, ", LMC_PRINTF_ARGS); + break; + } + + lmc_read_macaddr(sc); + printf("pass %d.%d, serial " LMC_EADDR_FMT "\n", + (sc->lmc_revinfo & 0xF0) >> 4, sc->lmc_revinfo & 0x0F, + LMC_EADDR_ARGS(sc->lmc_enaddr)); + + if (!pci_map_int (config_id, intr_rtn, (void*) sc, &net_imask)) { + printf(LMC_PRINTF_FMT ": couldn't map interrupt\n", + LMC_PRINTF_ARGS); + return; + } + +#if !defined(LMC_DEVCONF) + at_shutdown(lmc_shutdown, sc, SHUTDOWN_POST_SYNC); +#endif + + s = LMC_RAISESPL(); + lmc_dec_reset(sc); + lmc_reset(sc); + lmc_attach(sc); + LMC_RESTORESPL(s); +} + +static void +lmc_shutdown(int howto, void * arg) +{ + lmc_softc_t * const sc = arg; + LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(10); + + sc->lmc_miireg16 = 0; /* deassert ready, and all others too */ +printf("lmc: 5\n"); + lmc_led_on(sc, LMC_MII16_LED_ALL); +} diff --git a/sys/dev/lmc/if_lmc_media.c b/sys/dev/lmc/if_lmc_media.c new file mode 100644 index 0000000..a96afa7 --- /dev/null +++ b/sys/dev/lmc/if_lmc_media.c @@ -0,0 +1,952 @@ +/* $FreeBSD$ */ +/* $Id: if_lmc_media.c,v 1.23 1999/03/01 15:12:24 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +/* + * For lack of a better place, put the SSI cable stuff here. + */ +char *lmc_ssi_cables[] = { + "V.10/RS423", "EIA530A", "reserved", "X.21", "V.35", + "EIA449/EIA530/V.36", "V.28/EIA232", "none", NULL +}; + +/* + * protocol independent method. + */ +static void lmc_set_protocol(lmc_softc_t * const, lmc_ctl_t *); + +/* + * media independent methods to check on media status, link, light LEDs, + * etc. + */ +static void lmc_ds3_init(lmc_softc_t * const); +static void lmc_ds3_default(lmc_softc_t * const); +static void lmc_ds3_set_status(lmc_softc_t * const, lmc_ctl_t *); +static void lmc_ds3_set_100ft(lmc_softc_t * const, int); +static int lmc_ds3_get_link_status(lmc_softc_t * const); +static void lmc_ds3_set_crc_length(lmc_softc_t * const, int); +static void lmc_ds3_set_scram(lmc_softc_t * const, int); + +static void lmc_hssi_init(lmc_softc_t * const); +static void lmc_hssi_default(lmc_softc_t * const); +static void lmc_hssi_set_status(lmc_softc_t * const, lmc_ctl_t *); +static void lmc_hssi_set_clock(lmc_softc_t * const, int); +static int lmc_hssi_get_link_status(lmc_softc_t * const); +static void lmc_hssi_set_link_status(lmc_softc_t * const, int); +static void lmc_hssi_set_crc_length(lmc_softc_t * const, int); + +static void lmc_ssi_init(lmc_softc_t * const); +static void lmc_ssi_default(lmc_softc_t * const); +static void lmc_ssi_set_status(lmc_softc_t * const, lmc_ctl_t *); +static void lmc_ssi_set_clock(lmc_softc_t * const, int); +static void lmc_ssi_set_speed(lmc_softc_t * const, lmc_ctl_t *); +static int lmc_ssi_get_link_status(lmc_softc_t * const); +static void lmc_ssi_set_link_status(lmc_softc_t * const, int); +static void lmc_ssi_set_crc_length(lmc_softc_t * const, int); + +static void lmc_t1_init(lmc_softc_t * const); +static void lmc_t1_default(lmc_softc_t * const); +static void lmc_t1_set_status(lmc_softc_t * const, lmc_ctl_t *); +static int lmc_t1_get_link_status(lmc_softc_t * const); +static void lmc_t1_set_circuit_type(lmc_softc_t * const, int); +static void lmc_t1_set_crc_length(lmc_softc_t * const, int); + +static void lmc_dummy_set_1(lmc_softc_t * const, int); +static void lmc_dummy_set2_1(lmc_softc_t * const, lmc_ctl_t *); + +static void write_av9110_bit(lmc_softc_t *, int); +static void write_av9110(lmc_softc_t *, u_int32_t, u_int32_t, u_int32_t, + u_int32_t, u_int32_t); + +lmc_media_t lmc_ds3_media = { + lmc_ds3_init, /* special media init stuff */ + lmc_ds3_default, /* reset to default state */ + lmc_ds3_set_status, /* reset status to state provided */ + lmc_dummy_set_1, /* set clock source */ + lmc_dummy_set2_1, /* set line speed */ + lmc_ds3_set_100ft, /* set cable length */ + lmc_ds3_set_scram, /* set scrambler */ + lmc_ds3_get_link_status, /* get link status */ + lmc_dummy_set_1, /* set link status */ + lmc_ds3_set_crc_length, /* set CRC length */ + lmc_dummy_set_1 +}; + +lmc_media_t lmc_hssi_media = { + lmc_hssi_init, /* special media init stuff */ + lmc_hssi_default, /* reset to default state */ + lmc_hssi_set_status, /* reset status to state provided */ + lmc_hssi_set_clock, /* set clock source */ + lmc_dummy_set2_1, /* set line speed */ + lmc_dummy_set_1, /* set cable length */ + lmc_dummy_set_1, /* set scrambler */ + lmc_hssi_get_link_status, /* get link status */ + lmc_hssi_set_link_status, /* set link status */ + lmc_hssi_set_crc_length, /* set CRC length */ + lmc_dummy_set_1 +}; + +lmc_media_t lmc_ssi_media = { + lmc_ssi_init, /* special media init stuff */ + lmc_ssi_default, /* reset to default state */ + lmc_ssi_set_status, /* reset status to state provided */ + lmc_ssi_set_clock, /* set clock source */ + lmc_ssi_set_speed, /* set line speed */ + lmc_dummy_set_1, /* set cable length */ + lmc_dummy_set_1, /* set scrambler */ + lmc_ssi_get_link_status, /* get link status */ + lmc_ssi_set_link_status, /* set link status */ + lmc_ssi_set_crc_length, /* set CRC length */ + lmc_dummy_set_1 +}; + +lmc_media_t lmc_t1_media = { + lmc_t1_init, /* special media init stuff */ + lmc_t1_default, /* reset to default state */ + lmc_t1_set_status, /* reset status to state provided */ + lmc_dummy_set_1, /* set clock source */ + lmc_dummy_set2_1, /* set line speed */ + lmc_dummy_set_1, /* set cable length */ + lmc_dummy_set_1, /* set scrambler */ + lmc_t1_get_link_status, /* get link status */ + lmc_dummy_set_1, /* set link status */ + lmc_t1_set_crc_length, /* set CRC length */ + lmc_t1_set_circuit_type /* set T1 or E1 circuit type */ +}; + + +static void +lmc_dummy_set_1(lmc_softc_t * const sc, int a) +{ +} + +static void +lmc_dummy_set2_1(lmc_softc_t * const sc, lmc_ctl_t *a) +{ +} + +/* + * HSSI methods + */ + +static void +lmc_hssi_init(lmc_softc_t * const sc) +{ + sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5200; + + lmc_gpio_mkoutput(sc, LMC_GEP_HSSI_CLOCK); +} + +static void +lmc_hssi_default(lmc_softc_t * const sc) +{ + sc->lmc_miireg16 = LMC_MII16_LED_ALL; + + sc->lmc_media->set_link_status(sc, 0); + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); + sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); +} + +/* + * Given a user provided state, set ourselves up to match it. This will + * always reset the card if needed. + */ +static void +lmc_hssi_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) +{ + if (ctl == NULL) { + sc->lmc_media->set_clock_source(sc, sc->ictl.clock_source); + lmc_set_protocol(sc, NULL); + + return; + } + + /* + * check for change in clock source + */ + if (ctl->clock_source && !sc->ictl.clock_source) + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_INT); + else if (!ctl->clock_source && sc->ictl.clock_source) + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); + + lmc_set_protocol(sc, ctl); +} + +/* + * 1 == internal, 0 == external + */ +static void +lmc_hssi_set_clock(lmc_softc_t * const sc, int ie) +{ + if (ie == LMC_CTL_CLOCK_SOURCE_EXT) { + sc->lmc_gpio |= LMC_GEP_HSSI_CLOCK; + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT; + printf(LMC_PRINTF_FMT ": clock external\n", + LMC_PRINTF_ARGS); + } else { + sc->lmc_gpio &= ~(LMC_GEP_HSSI_CLOCK); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT; + printf(LMC_PRINTF_FMT ": clock internal\n", + LMC_PRINTF_ARGS); + } +} + +/* + * return hardware link status. + * 0 == link is down, 1 == link is up. + */ +static int +lmc_hssi_get_link_status(lmc_softc_t * const sc) +{ + u_int16_t link_status; + + link_status = lmc_mii_readreg(sc, 0, 16); + + if ((link_status & LMC_MII16_HSSI_CA) == LMC_MII16_HSSI_CA) + return 1; + else + return 0; +} + +static void +lmc_hssi_set_link_status(lmc_softc_t * const sc, int state) +{ + if (state) + sc->lmc_miireg16 |= LMC_MII16_HSSI_TA; + else + sc->lmc_miireg16 &= ~LMC_MII16_HSSI_TA; + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +/* + * 0 == 16bit, 1 == 32bit + */ +static void +lmc_hssi_set_crc_length(lmc_softc_t * const sc, int state) +{ + if (state == LMC_CTL_CRC_LENGTH_32) { + /* 32 bit */ + sc->lmc_miireg16 |= LMC_MII16_HSSI_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; + } else { + /* 16 bit */ + sc->lmc_miireg16 &= ~LMC_MII16_HSSI_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; + } + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + + +/* + * DS3 methods + */ + +/* + * Set cable length + */ +static void +lmc_ds3_set_100ft(lmc_softc_t * const sc, int ie) +{ + if (ie == LMC_CTL_CABLE_LENGTH_GT_100FT) { + sc->lmc_miireg16 &= ~LMC_MII16_DS3_ZERO; + sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_GT_100FT; + } else if (ie == LMC_CTL_CABLE_LENGTH_LT_100FT) { + sc->lmc_miireg16 |= LMC_MII16_DS3_ZERO; + sc->ictl.cable_length = LMC_CTL_CABLE_LENGTH_LT_100FT; + } + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +static void +lmc_ds3_default(lmc_softc_t * const sc) +{ + sc->lmc_miireg16 = LMC_MII16_LED_ALL; + + sc->lmc_media->set_link_status(sc, 0); + sc->lmc_media->set_cable_length(sc, LMC_CTL_CABLE_LENGTH_LT_100FT); + sc->lmc_media->set_scrambler(sc, LMC_CTL_OFF); + sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); +} + +/* + * Given a user provided state, set ourselves up to match it. This will + * always reset the card if needed. + */ +static void +lmc_ds3_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) +{ + if (ctl == NULL) { + sc->lmc_media->set_cable_length(sc, sc->ictl.cable_length); + sc->lmc_media->set_scrambler(sc, sc->ictl.scrambler_onoff); + lmc_set_protocol(sc, NULL); + + return; + } + + /* + * check for change in cable length setting + */ + if (ctl->cable_length && !sc->ictl.cable_length) + lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_GT_100FT); + else if (!ctl->cable_length && sc->ictl.cable_length) + lmc_ds3_set_100ft(sc, LMC_CTL_CABLE_LENGTH_LT_100FT); + + /* + * Check for change in scrambler setting (requires reset) + */ + if (ctl->scrambler_onoff && !sc->ictl.scrambler_onoff) + lmc_ds3_set_scram(sc, LMC_CTL_ON); + else if (!ctl->scrambler_onoff && sc->ictl.scrambler_onoff) + lmc_ds3_set_scram(sc, LMC_CTL_OFF); + + lmc_set_protocol(sc, ctl); +} + +static void +lmc_ds3_init(lmc_softc_t * const sc) +{ + int i; + + sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC5245; + + /* writes zeros everywhere */ + for (i = 0 ; i < 21 ; i++) { + lmc_mii_writereg(sc, 0, 17, i); + lmc_mii_writereg(sc, 0, 18, 0); + } + + /* set some essential bits */ + lmc_mii_writereg(sc, 0, 17, 1); + lmc_mii_writereg(sc, 0, 18, 0x05); /* ser, xtx */ + + lmc_mii_writereg(sc, 0, 17, 5); + lmc_mii_writereg(sc, 0, 18, 0x80); /* emode */ + + lmc_mii_writereg(sc, 0, 17, 14); + lmc_mii_writereg(sc, 0, 18, 0x30); /* rcgen, tcgen */ + + /* clear counters and latched bits */ + for (i = 0 ; i < 21 ; i++) { + lmc_mii_writereg(sc, 0, 17, i); + lmc_mii_readreg(sc, 0, 18); + } +} + +/* + * 1 == DS3 payload scrambled, 0 == not scrambled + */ +static void +lmc_ds3_set_scram(lmc_softc_t * const sc, int ie) +{ + if (ie == LMC_CTL_ON) { + sc->lmc_miireg16 |= LMC_MII16_DS3_SCRAM; + sc->ictl.scrambler_onoff = LMC_CTL_ON; + } else { + sc->lmc_miireg16 &= ~LMC_MII16_DS3_SCRAM; + sc->ictl.scrambler_onoff = LMC_CTL_OFF; + } + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +/* + * return hardware link status. + * 0 == link is down, 1 == link is up. + */ +static int +lmc_ds3_get_link_status(lmc_softc_t * const sc) +{ + u_int16_t link_status; + + lmc_mii_writereg(sc, 0, 17, 7); + link_status = lmc_mii_readreg(sc, 0, 18); + + if ((link_status & LMC_FRAMER_REG0_DLOS) == 0) + return 1; + else + return 0; +} + +/* + * 0 == 16bit, 1 == 32bit + */ +static void +lmc_ds3_set_crc_length(lmc_softc_t * const sc, int state) +{ + if (state == LMC_CTL_CRC_LENGTH_32) { + /* 32 bit */ + sc->lmc_miireg16 |= LMC_MII16_DS3_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; + } else { + /* 16 bit */ + sc->lmc_miireg16 &= ~LMC_MII16_DS3_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; + } + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + + +/* + * SSI methods + */ + +static void +lmc_ssi_init(lmc_softc_t * const sc) +{ + u_int16_t mii17; + int cable; + + sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC1000; + + mii17 = lmc_mii_readreg(sc, 0, 17); + + cable = (mii17 & LMC_MII17_SSI_CABLE_MASK) >> LMC_MII17_SSI_CABLE_SHIFT; + sc->ictl.cable_type = cable; + + lmc_gpio_mkoutput(sc, LMC_GEP_SSI_TXCLOCK); +} + +static void +lmc_ssi_default(lmc_softc_t * const sc) +{ + sc->lmc_miireg16 = LMC_MII16_LED_ALL; + + /* + * make TXCLOCK always be an output + */ + lmc_gpio_mkoutput(sc, LMC_GEP_SSI_TXCLOCK); + + sc->lmc_media->set_link_status(sc, 0); + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); + sc->lmc_media->set_speed(sc, NULL); + sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16); +} + +/* + * Given a user provided state, set ourselves up to match it. This will + * always reset the card if needed. + */ +static void +lmc_ssi_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl) +{ + if (ctl == NULL) { + sc->lmc_media->set_clock_source(sc, sc->ictl.clock_source); + sc->lmc_media->set_speed(sc, &sc->ictl); + lmc_set_protocol(sc, NULL); + + return; + } + + /* + * check for change in clock source + */ + if (ctl->clock_source == LMC_CTL_CLOCK_SOURCE_INT + && sc->ictl.clock_source == LMC_CTL_CLOCK_SOURCE_EXT) + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_INT); + else if (ctl->clock_source == LMC_CTL_CLOCK_SOURCE_EXT + && sc->ictl.clock_source == LMC_CTL_CLOCK_SOURCE_INT) + sc->lmc_media->set_clock_source(sc, LMC_CTL_CLOCK_SOURCE_EXT); + + if (ctl->clock_rate != sc->ictl.clock_rate) + sc->lmc_media->set_speed(sc, ctl); + + lmc_set_protocol(sc, ctl); +} + +/* + * 1 == internal, 0 == external + */ +static void +lmc_ssi_set_clock(lmc_softc_t * const sc, int ie) +{ + if (ie == LMC_CTL_CLOCK_SOURCE_EXT) { + sc->lmc_gpio &= ~(LMC_GEP_SSI_TXCLOCK); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_EXT; + printf(LMC_PRINTF_FMT ": clock external\n", + LMC_PRINTF_ARGS); + } else { + sc->lmc_gpio |= LMC_GEP_SSI_TXCLOCK; + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + sc->ictl.clock_source = LMC_CTL_CLOCK_SOURCE_INT; + printf(LMC_PRINTF_FMT ": clock internal\n", + LMC_PRINTF_ARGS); + } +} + +static void +lmc_ssi_set_speed(lmc_softc_t * const sc, lmc_ctl_t *ctl) +{ + lmc_ctl_t *ictl = &sc->ictl; + lmc_av9110_t *av; + + if (ctl == NULL) { + av = &ictl->cardspec.ssi; + ictl->clock_rate = 100000; + av->f = ictl->clock_rate; + av->n = 8; + av->m = 25; + av->v = 0; + av->x = 0; + av->r = 2; + + write_av9110(sc, av->n, av->m, av->v, av->x, av->r); + return; + } + + av = &ctl->cardspec.ssi; + + if (av->f == 0) + return; + + ictl->clock_rate = av->f; /* really, this is the rate we are */ + ictl->cardspec.ssi = *av; + + write_av9110(sc, av->n, av->m, av->v, av->x, av->r); +} + +/* + * return hardware link status. + * 0 == link is down, 1 == link is up. + */ +static int +lmc_ssi_get_link_status(lmc_softc_t * const sc) +{ + u_int16_t link_status; + + /* + * missing CTS? Hmm. If we require CTS on, we may never get the + * link to come up, so omit it in this test. + * + * Also, it seems that with a loopback cable, DCD isn't asserted, + * so just check for things like this: + * DSR _must_ be asserted. + * One of DCD or CTS must be asserted. + */ + link_status = lmc_mii_readreg(sc, 0, 16); + + if ((link_status & LMC_MII16_SSI_DSR) == 0) + return (0); + + if ((link_status & (LMC_MII16_SSI_CTS | LMC_MII16_SSI_DCD)) == 0) + return (0); + + return (1); +} + +static void +lmc_ssi_set_link_status(lmc_softc_t * const sc, int state) +{ + if (state) { + sc->lmc_miireg16 |= (LMC_MII16_SSI_DTR | LMC_MII16_SSI_RTS); + printf(LMC_PRINTF_FMT ": asserting DTR and RTS\n", + LMC_PRINTF_ARGS); + } else { + sc->lmc_miireg16 &= ~(LMC_MII16_SSI_DTR | LMC_MII16_SSI_RTS); + printf(LMC_PRINTF_FMT ": deasserting DTR and RTS\n", + LMC_PRINTF_ARGS); + } + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +/* + * 0 == 16bit, 1 == 32bit + */ +static void +lmc_ssi_set_crc_length(lmc_softc_t * const sc, int state) +{ + if (state == LMC_CTL_CRC_LENGTH_32) { + /* 32 bit */ + sc->lmc_miireg16 |= LMC_MII16_SSI_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; + } else { + /* 16 bit */ + sc->lmc_miireg16 &= ~LMC_MII16_SSI_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; + } + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +/* + * These are bits to program the SSI frequency generator + */ +static void +write_av9110_bit(lmc_softc_t *sc, int c) +{ + /* + * set the data bit as we need it. + */ + sc->lmc_gpio &= ~(LMC_GEP_SERIALCLK); + if (c & 0x01) + sc->lmc_gpio |= LMC_GEP_SERIAL; + else + sc->lmc_gpio &= ~(LMC_GEP_SERIAL); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + + /* + * set the clock to high + */ + sc->lmc_gpio |= LMC_GEP_SERIALCLK; + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + + /* + * set the clock to low again. + */ + sc->lmc_gpio &= ~(LMC_GEP_SERIALCLK); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); +} + +static void +write_av9110(lmc_softc_t *sc, u_int32_t n, u_int32_t m, u_int32_t v, + u_int32_t x, u_int32_t r) +{ + int i; + +#if 0 + printf(LMC_PRINTF_FMT ": speed %u, %d %d %d %d %d\n", + LMC_PRINTF_ARGS, sc->ictl.clock_rate, + n, m, v, x, r); +#endif + + sc->lmc_gpio |= LMC_GEP_SSI_GENERATOR; + sc->lmc_gpio &= ~(LMC_GEP_SERIAL | LMC_GEP_SERIALCLK); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + + /* + * Set the TXCLOCK, GENERATOR, SERIAL, and SERIALCLK + * as outputs. + */ + lmc_gpio_mkoutput(sc, (LMC_GEP_SERIAL | LMC_GEP_SERIALCLK + | LMC_GEP_SSI_GENERATOR)); + + sc->lmc_gpio &= ~(LMC_GEP_SSI_GENERATOR); + LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio); + + /* + * a shifting we will go... + */ + for (i = 0 ; i < 7 ; i++) + write_av9110_bit(sc, n >> i); + for (i = 0 ; i < 7 ; i++) + write_av9110_bit(sc, m >> i); + for (i = 0 ; i < 1 ; i++) + write_av9110_bit(sc, v >> i); + for (i = 0 ; i < 2 ; i++) + write_av9110_bit(sc, x >> i); + for (i = 0 ; i < 2 ; i++) + write_av9110_bit(sc, r >> i); + for (i = 0 ; i < 5 ; i++) + write_av9110_bit(sc, 0x17 >> i); + + /* + * stop driving serial-related signals + */ + lmc_gpio_mkinput(sc, + (LMC_GEP_SERIAL | LMC_GEP_SERIALCLK + | LMC_GEP_SSI_GENERATOR)); +} + +static void +lmc_set_protocol(lmc_softc_t * const sc, lmc_ctl_t *ctl) +{ + if (ctl == 0) { + sc->ictl.keepalive_onoff = LMC_CTL_ON; + + return; + } + +#if defined(__NetBSD__) || defined(__FreeBSD__) + if (ctl->keepalive_onoff != sc->ictl.keepalive_onoff) { + switch (ctl->keepalive_onoff) { + case LMC_CTL_ON: + printf(LMC_PRINTF_FMT ": enabling keepalive\n", + LMC_PRINTF_ARGS); + sc->ictl.keepalive_onoff = LMC_CTL_ON; + sc->lmc_sppp.pp_flags = PP_CISCO | PP_KEEPALIVE; + break; + case LMC_CTL_OFF: + printf(LMC_PRINTF_FMT ": disabling keepalive\n", + LMC_PRINTF_ARGS); + sc->ictl.keepalive_onoff = LMC_CTL_OFF; + sc->lmc_sppp.pp_flags = PP_CISCO; + } + } +#endif +} + +/* + * T1 methods + */ + +/* + * The framer regs are multiplexed through MII regs 17 & 18 + * write the register address to MII reg 17 and the * data to MII reg 18. */ + +static void lmc_t1_write(lmc_softc_t * const sc, int a, int d) +{ + lmc_mii_writereg(sc, 0, 17, a); + lmc_mii_writereg(sc, 0, 18, d); +} + +/* XXX future to be integtrated with if_lmc.c for alarms */ + +static int lmc_t1_read(lmc_softc_t * const sc, int a) +{ + lmc_mii_writereg(sc, 0, 17, a); + return lmc_mii_readreg(sc, 0, 18); +} + +static void + lmc_t1_init(lmc_softc_t * const sc) +{ + u_int16_t mii16; + int i; + + sc->ictl.cardtype = LMC_CTL_CARDTYPE_LMC1200; + mii16 = lmc_mii_readreg(sc, 0, 16); + + /* reset 8370 */ + mii16 &= ~LMC_MII16_T1_RST; + lmc_mii_writereg(sc, 0, 16, mii16 | LMC_MII16_T1_RST); + lmc_mii_writereg(sc, 0, 16, mii16); + + /* set T1 or E1 line impedance */ + /* mii16 &= ~LMC_MII16_T1_Z; */ + mii16 |= LMC_MII16_T1_Z; + lmc_mii_writereg(sc, 0, 16, mii16); + + lmc_t1_write(sc, 0x01, 0x1B); /* CR0 - primary control */ + lmc_t1_write(sc, 0x02, 0x42); /* JAT_CR - jitter atten config */ + lmc_t1_write(sc, 0x14, 0x00); /* LOOP - loopback config */ + lmc_t1_write(sc, 0x15, 0x00); /* DL3_TS - xtrnl datalink timeslot */ + lmc_t1_write(sc, 0x18, 0xFF); /* PIO - programmable I/O */ + lmc_t1_write(sc, 0x19, 0x30); /* POE - programmable OE */ + lmc_t1_write(sc, 0x1A, 0x0F); /* CMUX - clock input mux */ + lmc_t1_write(sc, 0x20, 0x41); /* LIU_CR - RX LIU config */ + lmc_t1_write(sc, 0x22, 0x76); /* RLIU_CR - RX LIU config */ + lmc_t1_write(sc, 0x40, 0x03); /* RCR0 - RX config */ + lmc_t1_write(sc, 0x45, 0x00); /* RALM - RX alarm config */ + lmc_t1_write(sc, 0x46, 0x05); /* LATCH - RX alarm/err/cntr latch */ + lmc_t1_write(sc, 0x68, 0x40); /* TLIU_CR - TX LIU config */ + lmc_t1_write(sc, 0x70, 0x0D); /* TCR0 - TX framer config */ + lmc_t1_write(sc, 0x71, 0x05); /* TCR1 - TX config */ + lmc_t1_write(sc, 0x72, 0x0B); /* TFRM - TX frame format */ + lmc_t1_write(sc, 0x73, 0x00); /* TERROR - TX error insert */ + lmc_t1_write(sc, 0x74, 0x00); /* TMAN - TX manual Sa/FEBE config */ + lmc_t1_write(sc, 0x75, 0x00); /* TALM - TX alarm signal config */ + lmc_t1_write(sc, 0x76, 0x00); /* TPATT - TX test pattern config */ + lmc_t1_write(sc, 0x77, 0x00); /* TLB - TX inband loopback confg */ + lmc_t1_write(sc, 0x90, 0x05); /* CLAD_CR - clock rate adapter confg */ + lmc_t1_write(sc, 0x91, 0x05); /* CSEL - clad freq sel */ + lmc_t1_write(sc, 0xA6, 0x00); /* DL1_CTL - DL1 control */ + lmc_t1_write(sc, 0xB1, 0x00); /* DL2_CTL - DL2 control */ + lmc_t1_write(sc, 0xD0, 0x47); /* SBI_CR - sys bus iface config */ + lmc_t1_write(sc, 0xD1, 0x70); /* RSB_CR - RX sys bus config */ + lmc_t1_write(sc, 0xD4, 0x30); /* TSB_CR - TX sys bus config */ + for (i=0; i<32; i++) + { + lmc_t1_write(sc, 0x0E0+i, 0x00); /*SBCn sysbus perchannel ctl */ + lmc_t1_write(sc, 0x100+i, 0x00); /* TPCn - TX per-channel ctl */ + lmc_t1_write(sc, 0x180+i, 0x00); /* RPCn - RX per-channel ctl */ + } + for (i=1; i<25; i++) + { lmc_t1_write(sc, 0x0E0+i, 0x0D); + /* SBCn - sys bus per-channel ctl */ + } + /* Turn on the transmiter */ + mii16 |= LMC_MII16_T1_XOE; + lmc_mii_writereg(sc, 0, 16, mii16); + sc->lmc_miireg16 = mii16; +} + +static void lmc_t1_default(lmc_softc_t * const sc) +{ + sc->lmc_miireg16 = LMC_MII16_LED_ALL; + sc->lmc_media->set_link_status(sc, 0); + sc->lmc_media->set_circuit_type(sc, LMC_CTL_CIRCUIT_TYPE_T1); + sc->lmc_media->set_crc_length(sc, LMC_CTL_CRC_LENGTH_16);} + +/* + * Given a user provided state, set ourselves up to match it. This will + * always reset the card if needed. + */ + +static void +lmc_t1_set_status(lmc_softc_t * const sc, lmc_ctl_t *ctl){ + if (ctl == NULL) { + sc->lmc_media->set_circuit_type(sc, sc->ictl.circuit_type); + lmc_set_protocol(sc, NULL); + + return; + } + + /* + * check for change in circuit type + */ + + if (ctl->circuit_type == LMC_CTL_CIRCUIT_TYPE_T1 + && sc->ictl.circuit_type == LMC_CTL_CIRCUIT_TYPE_E1) + sc->lmc_media->set_circuit_type(sc,LMC_CTL_CIRCUIT_TYPE_E1 ); + else if (ctl->circuit_type == LMC_CTL_CIRCUIT_TYPE_E1 + && sc->ictl.circuit_type == LMC_CTL_CIRCUIT_TYPE_T1) + sc->lmc_media->set_circuit_type(sc, LMC_CTL_CIRCUIT_TYPE_T1); + lmc_set_protocol(sc, ctl); +} + +/* + * return hardware link status. + * 0 == link is down, 1 == link is up. + */ + +static int +lmc_t1_get_link_status(lmc_softc_t * const sc){ + u_int16_t link_status; + lmc_mii_writereg(sc, 0, 17, T1FRAMER_ALARM1_STATUS ); + link_status = lmc_mii_readreg(sc, 0, 18) & 0x00FF; /* Make sure it's 8 bits only */ + + /* + * LMC 1200 LED definitions + * led0 yellow = far-end adapter is in Red alarm condition + * led1 blue = received an Alarm Indication signal (upstream failure) + * led2 Green = power to adapter, Gate Array loaded & driver attached + * led3 red = Loss of Signal (LOS) or out of frame (OOF) conditions + * detected on T3 receive signal + */ + + /* detect a change in Blue alarm indication signal */ + if( link_status & T1F_RAIS ) + { /* turn on blue LED */ + lmc_led_on(sc, LMC_DS3_LED1); + } + else + { /* turn off blue LED */ + lmc_led_off(sc, LMC_DS3_LED1); + } + + if( (sc->t1_alarm1_status & T1F_RAIS) != (link_status & T1F_RAIS) ) + { + if( link_status & T1F_RAIS ) + { /* turn on blue LED */ + printf(" link status: RAIS turn ON Blue %x\n", link_status ); /* DEBUG */ + lmc_led_on(sc, LMC_DS3_LED1); + } + else + { /* turn off blue LED */ + printf(" link status: RAIS turn OFF Blue %x\n", link_status ); /* DEBUG */ + lmc_led_off(sc, LMC_DS3_LED1); + } + } + /* + * T1F_RYEL wiggles quite a bit, + * taking it out until I understand why -baz 6/22/99 + */ + if(link_status & T1F_RMYEL) + { + /* turn on yellow LED */ + lmc_led_on(sc, LMC_DS3_LED0); + } + else + { + lmc_led_off(sc, LMC_DS3_LED0); + } + /* Yellow alarm indication */ + if( (sc->t1_alarm1_status & T1F_RMYEL) != + (link_status & T1F_RMYEL) ) + { + if((link_status & T1F_RMYEL) == 0 ) + { + printf(" link status: RYEL turn OFF Yellow %x\n", link_status ); /* DEBUG */ + } + else + { + printf(" link status: RYEL turn ON Yellow %x\n", link_status ); /* DEBUG */ + } + } + + if (link_status & (T1F_RLOF | T1F_RLOS)) + { + lmc_led_on(sc, LMC_DS3_LED3); + } + else + { + lmc_led_off(sc, LMC_DS3_LED3); + } + sc->t1_alarm1_status = link_status; + + lmc_mii_writereg(sc, 0, 17, T1FRAMER_ALARM2_STATUS ); + sc->t1_alarm2_status = lmc_mii_readreg(sc, 0, 18); + + /* link status based upon T1 receive loss of frame or + * loss of signal - RED alarm indication */ + if ((link_status & (T1F_RLOF | T1F_RLOS)) == 0) + return 1; + else + return 0; +} + +/* + * 1 == T1 Circuit Type , 0 == E1 Circuit Type + */ +static void + lmc_t1_set_circuit_type(lmc_softc_t * const sc, int ie) +{ + if (ie == LMC_CTL_CIRCUIT_TYPE_T1) + { + sc->lmc_miireg16 |= LMC_MII16_T1_Z; + sc->ictl.circuit_type = LMC_CTL_CIRCUIT_TYPE_T1; + } else { sc->lmc_miireg16 &= ~LMC_MII16_T1_Z; + sc->ictl.scrambler_onoff = LMC_CTL_CIRCUIT_TYPE_E1; + } + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} + +/* + * 0 == 16bit, 1 == 32bit */ +static void + lmc_t1_set_crc_length(lmc_softc_t * const sc, int state) +{ + if (state == LMC_CTL_CRC_LENGTH_32) { + /* 32 bit */ + sc->lmc_miireg16 |= LMC_MII16_T1_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_32; + sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_4; + + } else { + /* 16 bit */ sc->lmc_miireg16 &= ~LMC_MII16_T1_CRC; + sc->ictl.crc_length = LMC_CTL_CRC_LENGTH_16; + sc->lmc_crcSize = LMC_CTL_CRC_BYTESIZE_2; + + } + + lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16); +} diff --git a/sys/dev/lmc/if_lmcioctl.h b/sys/dev/lmc/if_lmcioctl.h new file mode 100644 index 0000000..13afd3a --- /dev/null +++ b/sys/dev/lmc/if_lmcioctl.h @@ -0,0 +1,276 @@ +/* $FreeBSD$ */ +/* $Id: if_lmcioctl.h,v 1.9 1999/02/18 10:30:18 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +/* + * IOCTLs for the sane world. + */ +#define LMCIOCGINFO _IOW('i', 240, struct ifreq) +#define LMCIOCSINFO _IOWR('i', 241, struct ifreq) + +typedef struct { + u_int32_t n; + u_int32_t m; + u_int32_t v; + u_int32_t x; + u_int32_t r; + u_int32_t f; + u_int32_t exact; +} lmc_av9110_t; + +/* + * Common structure passed to the ioctl code. + */ +struct lmc___ctl { + u_int32_t cardtype; + u_int32_t clock_source; /* HSSI, SSI */ + u_int32_t clock_rate; /* SSI */ + u_int32_t crc_length; + u_int32_t cable_length; /* DS3 */ + u_int32_t scrambler_onoff; /* DS3 */ + u_int32_t cable_type; /* SSI */ + u_int32_t keepalive_onoff; /* protocol */ + u_int32_t ticks; /* ticks/sec */ + union { + lmc_av9110_t ssi; + } cardspec; + u_int32_t circuit_type; /* T1 or E1 circuit */ +}; + +#define LMC_CTL_CARDTYPE_LMC5200 0 /* HSSI */ +#define LMC_CTL_CARDTYPE_LMC5245 1 /* DS3 */ +#define LMC_CTL_CARDTYPE_LMC1000 2 /* SSI, E1, etc */ +#define LMC_CTL_CARDTYPE_LMC1200 3 /* T1 */ + +#define LMC_CTL_OFF 0 /* generic OFF value */ +#define LMC_CTL_ON 1 /* generic ON value */ + +#define LMC_CTL_CLOCK_SOURCE_EXT 0 /* clock off line */ +#define LMC_CTL_CLOCK_SOURCE_INT 1 /* internal clock */ + +#define LMC_CTL_CRC_LENGTH_16 16 +#define LMC_CTL_CRC_LENGTH_32 32 +#define LMC_CTL_CRC_BYTESIZE_2 2 +#define LMC_CTL_CRC_BYTESIZE_4 4 + +#define LMC_CTL_CABLE_LENGTH_LT_100FT 0 /* DS3 cable < 100 feet */ +#define LMC_CTL_CABLE_LENGTH_GT_100FT 1 /* DS3 cable >= 100 feet */ + +#define LMC_CTL_CIRCUIT_TYPE_E1 0 +#define LMC_CTL_CIRCUIT_TYPE_T1 1 + +/* + * These are not in the least IOCTL related, but I want them common. + */ +/* + * assignments for the GPIO register on the DEC chip (common) + */ +#define LMC_GEP_INIT 0x01 /* 0: */ +#define LMC_GEP_RESET 0x02 /* 1: */ +#define LMC_GEP_LOAD 0x10 /* 4: */ +#define LMC_GEP_DP 0x20 /* 5: */ +#define LMC_GEP_SERIAL 0x40 /* 6: serial out */ +#define LMC_GEP_SERIALCLK 0x80 /* 7: serial clock */ + +/* + * HSSI GPIO assignments + */ +#define LMC_GEP_HSSI_ST 0x04 /* 2: receive timing sense (deprecated) */ +#define LMC_GEP_HSSI_CLOCK 0x08 /* 3: clock source */ + +/* + * SSI GPIO assignments + */ +#define LMC_GEP_SSI_GENERATOR 0x04 /* 2: enable prog freq gen serial i/f */ +#define LMC_GEP_SSI_TXCLOCK 0x08 /* 3: provide clock on TXCLOCK output */ + +/* Note: 2 pairs of LEDs where swapped by mistake + * in Xilinx code for DS3 & DS1 adapters */ +#define LMC_DS3_LED0 0x0100 /* bit 08 yellow */ +#define LMC_DS3_LED1 0x0080 /* bit 07 blue */ +#define LMC_DS3_LED2 0x0400 /* bit 10 green */ +#define LMC_DS3_LED3 0x0200 /* bit 09 red */ + +/* + * Common MII16 bits + */ +#define LMC_MII16_LED0 0x0080 +#define LMC_MII16_LED1 0x0100 +#define LMC_MII16_LED2 0x0200 +#define LMC_MII16_LED3 0x0400 /* Error, and the red one */ +#define LMC_MII16_LED_ALL 0x0780 /* LED bit mask */ +#define LMC_MII16_FIFO_RESET 0x0800 + +/* + * definitions for HSSI + */ +#define LMC_MII16_HSSI_TA 0x0001 +#define LMC_MII16_HSSI_CA 0x0002 +#define LMC_MII16_HSSI_LA 0x0004 +#define LMC_MII16_HSSI_LB 0x0008 +#define LMC_MII16_HSSI_LC 0x0010 +#define LMC_MII16_HSSI_TM 0x0020 +#define LMC_MII16_HSSI_CRC 0x0040 + +/* + * assignments for the MII register 16 (DS3) + */ +#define LMC_MII16_DS3_ZERO 0x0001 +#define LMC_MII16_DS3_TRLBK 0x0002 +#define LMC_MII16_DS3_LNLBK 0x0004 +#define LMC_MII16_DS3_RAIS 0x0008 +#define LMC_MII16_DS3_TAIS 0x0010 +#define LMC_MII16_DS3_BIST 0x0020 +#define LMC_MII16_DS3_DLOS 0x0040 +#define LMC_MII16_DS3_CRC 0x1000 +#define LMC_MII16_DS3_SCRAM 0x2000 + +/* + * And SSI + */ +#define LMC_MII16_SSI_DTR 0x0001 /* DTR output RW */ +#define LMC_MII16_SSI_DSR 0x0002 /* DSR input RO */ +#define LMC_MII16_SSI_RTS 0x0004 /* RTS output RW */ +#define LMC_MII16_SSI_CTS 0x0008 /* CTS input RO */ +#define LMC_MII16_SSI_DCD 0x0010 /* DCD input RO */ +#define LMC_MII16_SSI_RI 0x0020 /* RI input RO */ +#define LMC_MII16_SSI_CRC 0x0040 /* CRC select */ + +/* + * bits 0x0080 through 0x0800 are generic, and described + * above with LMC_MII16_LED[0123] _LED_ALL, and _FIFO_RESET + */ +#define LMC_MII16_SSI_LL 0x1000 /* LL output RW */ +#define LMC_MII16_SSI_RL 0x2000 /* RL output RW */ +#define LMC_MII16_SSI_TM 0x4000 /* TM input RO */ +#define LMC_MII16_SSI_LOOP 0x8000 /* loopback enable RW */ + +/* + * Some of the MII16 bits are mirrored in the MII17 register as well, + * but let's keep thing seperate for now, and get only the cable from + * the MII17. + */ +#define LMC_MII17_SSI_CABLE_MASK 0x0038 /* mask to extract the cable type */ +#define LMC_MII17_SSI_CABLE_SHIFT 3 /* shift to extract the cable type */ + +/* + * framer register 0 and 7 (7 is latched and reset on read) + */ +#define LMC_FRAMER_REG0_DLOS 0x80 /* digital loss of service */ +#define LMC_FRAMER_REG0_OOFS 0x40 /* out of frame sync */ +#define LMC_FRAMER_REG0_AIS 0x20 /* alarm indication signal */ +#define LMC_FRAMER_REG0_CIS 0x10 /* channel idle */ +#define LMC_FRAMER_REG0_LOC 0x08 /* loss of clock */ + +#define LMC_CARDTYPE_UNKNOWN -1 +#define LMC_CARDTYPE_HSSI 1 /* probed card is a HSSI card */ +#define LMC_CARDTYPE_DS3 2 /* probed card is a DS3 card */ +#define LMC_CARDTYPE_SSI 3 /* probed card is a SSI card */ +#define LMC_CARDTYPE_T1 4 /* probed card is a T1 card */ + +/* + * framer register 0 and 7 (7 is latched and reset on read) + */ +#define LMC_FRAMER_REG0_DLOS 0x80 /* digital loss of service */ +#define LMC_FRAMER_REG0_OOFS 0x40 /* out of frame sync */ +#define LMC_FRAMER_REG0_AIS 0x20 /* alarm indication signal */ +#define LMC_FRAMER_REG0_CIS 0x10 /* channel idle */ +#define LMC_FRAMER_REG0_LOC 0x08 /* loss of clock */ +#define LMC_MII16_T1_UNUSED1 0x0003 +#define LMC_MII16_T1_XOE 0x0004 +#define LMC_MII16_T1_RST 0x0008 /* T1 chip reset - RW */ +#define LMC_MII16_T1_Z 0x0010 /* output impedance T1=1, E1=0 output - RW */ +#define LMC_MII16_T1_INTR 0x0020 /* interrupt from 8370 - RO */ +#define LMC_MII16_T1_ONESEC 0x0040 /* one second square wave - ro */ +#define LMC_MII16_T1_LED0 0x0100 +#define LMC_MII16_T1_LED1 0x0080 +#define LMC_MII16_T1_LED2 0x0400 +#define LMC_MII16_T1_LED3 0x0200 +#define LMC_MII16_T1_FIFO_RESET 0x0800 + +#define LMC_MII16_T1_CRC 0x1000 /* CRC select - RW */ +#define LMC_MII16_T1_UNUSED2 0xe000 + +#define T1FRAMER_ALARM1_STATUS 0x47 +#define T1FRAMER_ALARM2_STATUS 0x48 +#define T1FRAMER_FERR_LSB 0x50 +#define T1FRAMER_FERR_MSB 0x51 /* framing bit error counter */ +#define T1FRAMER_LCV_LSB 0x54 +#define T1FRAMER_LCV_MSB 0x55 /* line code violation counter */ +#define T1FRAMER_AERR 0x5A + +/* mask for the above AERR register */ +#define T1FRAMER_LOF_MASK (0x0f0) /* receive loss of frame */ +#define T1FRAMER_COFA_MASK (0x0c0) /* change of frame alignment */ +#define T1FRAMER_SEF_MASK (0x03) /* severely errored frame */ + +/* 8370 framer register ALM1 (0x47) values + * used to determine link status + */ + +#define T1F_SIGFRZ 0x01 /* signaling freeze */ +#define T1F_RLOF 0x02 /* receive loss of frame alignment */ +#define T1F_RLOS 0x04 /* receive loss of signal */ +#define T1F_RALOS 0x08 /* receive analog loss of signal or RCKI loss of clock */ +#define T1F_RAIS 0x10 /* receive alarm indication signal */ +#define T1F_UNUSED 0x20 +#define T1F_RYEL 0x40 /* receive yellow alarm */ +#define T1F_RMYEL 0x80 /* receive multiframe yellow alarm */ + +/* ------------------ end T1 defs ------------------- */ + +#define LMC_MII_LedMask 0x0780 +#define LMC_MII_LedBitPos 7 + +/* + * NetBSD uses _KERNEL, FreeBSD uses KERNEL. + */ +#if defined(_KERNEL) || defined(KERNEL) || defined(__KERNEL__) +/* + * media independent methods to check on media status, link, light LEDs, + * etc. + */ +struct lmc___media { + void (* init)(lmc_softc_t * const); + void (* defaults)(lmc_softc_t * const); + void (* set_status)(lmc_softc_t * const, lmc_ctl_t *); + void (* set_clock_source)(lmc_softc_t * const, int); + void (* set_speed)(lmc_softc_t * const, lmc_ctl_t *); + void (* set_cable_length)(lmc_softc_t * const, int); + void (* set_scrambler)(lmc_softc_t * const, int); + int (* get_link_status)(lmc_softc_t * const); + void (* set_link_status)(lmc_softc_t * const, int); + void (* set_crc_length)(lmc_softc_t * const, int); + void (* set_circuit_type)(lmc_softc_t * const, int); +}; + +static unsigned lmc_mii_readreg(lmc_softc_t * const sc, unsigned + devaddr, unsigned regno); +static void lmc_mii_writereg(lmc_softc_t * const sc, unsigned devaddr, + unsigned regno, unsigned data); + +#endif diff --git a/sys/dev/lmc/if_lmcvar.h b/sys/dev/lmc/if_lmcvar.h new file mode 100644 index 0000000..48bee6b --- /dev/null +++ b/sys/dev/lmc/if_lmcvar.h @@ -0,0 +1,578 @@ +/* $FreeBSD$ */ +/* From NetBSD: if_devar.h,v 1.21 1997/10/16 22:02:32 matt Exp */ +/* $Id: if_lmcvar.h,v 1.6 1999/01/12 14:16:58 explorer Exp $ */ + +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com) + * Copyright (c) LAN Media Corporation 1998, 1999. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough 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. + */ + +#if !defined(_DEVAR_H) +#define _DEVAR_H + +#define LMC_MTU 1500 +#define PPP_HEADER_LEN 4 +#define BIG_PACKET + +#if !defined(PCI_VENDOR_LMC) +#define PCI_VENDOR_LMC 0x1376 +#endif +#if !defined(PCI_PRODUCT_LMC_HSSI) +#define PCI_PRODUCT_LMC_HSSI 0x0003 +#endif +#if !defined(PCI_PRODUCT_LMC_DS3) +#define PCI_PRODUCT_LMC_DS3 0x0004 +#endif +#if !defined(PCI_PRODUCT_LMC_SSI) +#define PCI_PRODUCT_LMC_SSI 0x0005 +#endif +#if !defined(PCI_PRODUCT_LMC_T1) +#define PCI_PRODUCT_LMC_T1 0x0006 +#endif + +#if defined(__NetBSD__) + +#include "rnd.h" +#if NRND > 0 +#include <sys/rnd.h> +#endif + +typedef bus_addr_t lmc_csrptr_t; + +#define LMC_CSR_READ(sc, csr) \ + bus_space_read_4((sc)->lmc_bustag, (sc)->lmc_bushandle, (sc)->lmc_csrs.csr) +#define LMC_CSR_WRITE(sc, csr, val) \ + bus_space_write_4((sc)->lmc_bustag, (sc)->lmc_bushandle, (sc)->lmc_csrs.csr, (val)) + +#define LMC_CSR_READBYTE(sc, csr) \ + bus_space_read_1((sc)->lmc_bustag, (sc)->lmc_bushandle, (sc)->lmc_csrs.csr) +#define LMC_CSR_WRITEBYTE(sc, csr, val) \ + bus_space_write_1((sc)->lmc_bustag, (sc)->lmc_bushandle, (sc)->lmc_csrs.csr, (val)) +#endif /* __NetBSD__ */ + +#ifdef LMC_IOMAPPED +#define LMC_EISA_CSRSIZE 16 +#define LMC_EISA_CSROFFSET 0 +#define LMC_PCI_CSRSIZE 8 +#define LMC_PCI_CSROFFSET 0 + +#if !defined(__NetBSD__) +typedef u_int16_t lmc_csrptr_t; + +#define LMC_CSR_READ(sc, csr) (inl((sc)->lmc_csrs.csr)) +#define LMC_CSR_WRITE(sc, csr, val) outl((sc)->lmc_csrs.csr, val) + +#define LMC_CSR_READBYTE(sc, csr) (inb((sc)->lmc_csrs.csr)) +#define LMC_CSR_WRITEBYTE(sc, csr, val) outb((sc)->lmc_csrs.csr, val) +#endif /* __NetBSD__ */ + +#else /* LMC_IOMAPPED */ + +#define LMC_PCI_CSRSIZE 8 +#define LMC_PCI_CSROFFSET 0 + +#if !defined(__NetBSD__) +typedef volatile u_int32_t *lmc_csrptr_t; + +/* + * macros to read and write CSRs. Note that the "0 +" in + * READ_CSR is to prevent the macro from being an lvalue + * and WRITE_CSR shouldn't be assigned from. + */ +#define LMC_CSR_READ(sc, csr) (0 + *(sc)->lmc_csrs.csr) +#define LMC_CSR_WRITE(sc, csr, val) ((void)(*(sc)->lmc_csrs.csr = (val))) +#endif /* __NetBSD__ */ + +#endif /* LMC_IOMAPPED */ + +/* + * This structure contains "pointers" for the registers on + * the various 21x4x chips. CSR0 through CSR8 are common + * to all chips. After that, it gets messy... + */ +typedef struct { + lmc_csrptr_t csr_busmode; /* CSR0 */ + lmc_csrptr_t csr_txpoll; /* CSR1 */ + lmc_csrptr_t csr_rxpoll; /* CSR2 */ + lmc_csrptr_t csr_rxlist; /* CSR3 */ + lmc_csrptr_t csr_txlist; /* CSR4 */ + lmc_csrptr_t csr_status; /* CSR5 */ + lmc_csrptr_t csr_command; /* CSR6 */ + lmc_csrptr_t csr_intr; /* CSR7 */ + lmc_csrptr_t csr_missed_frames; /* CSR8 */ + lmc_csrptr_t csr_9; /* CSR9 */ + lmc_csrptr_t csr_10; /* CSR10 */ + lmc_csrptr_t csr_11; /* CSR11 */ + lmc_csrptr_t csr_12; /* CSR12 */ + lmc_csrptr_t csr_13; /* CSR13 */ + lmc_csrptr_t csr_14; /* CSR14 */ + lmc_csrptr_t csr_15; /* CSR15 */ +} lmc_regfile_t; + +#define csr_enetrom csr_9 /* 21040 */ +#define csr_reserved csr_10 /* 21040 */ +#define csr_full_duplex csr_11 /* 21040 */ +#define csr_bootrom csr_10 /* 21041/21140A/?? */ +#define csr_gp csr_12 /* 21140* */ +#define csr_watchdog csr_15 /* 21140* */ +#define csr_gp_timer csr_11 /* 21041/21140* */ +#define csr_srom_mii csr_9 /* 21041/21140* */ +#define csr_sia_status csr_12 /* 2104x */ +#define csr_sia_connectivity csr_13 /* 2104x */ +#define csr_sia_tx_rx csr_14 /* 2104x */ +#define csr_sia_general csr_15 /* 2104x */ + +/* + * While 21x4x allows chaining of its descriptors, this driver + * doesn't take advantage of it. We keep the descriptors in a + * traditional FIFO ring. + */ +typedef struct { + tulip_desc_t *ri_first; /* first entry in ring */ + tulip_desc_t *ri_last; /* one after last entry */ + tulip_desc_t *ri_nextin; /* next to processed by host */ + tulip_desc_t *ri_nextout; /* next to processed by adapter */ + int ri_max; + int ri_free; +} lmc_ringinfo_t; + +/* + * The 21040 has a stupid restriction in that the receive + * buffers must be longword aligned. But since Ethernet + * headers are not a multiple of longwords in size this forces + * the data to non-longword aligned. Since IP requires the + * data to be longword aligned, we need to copy it after it has + * been DMA'ed in our memory. + * + * Since we have to copy it anyways, we might as well as allocate + * dedicated receive space for the input. This allows to use a + * small receive buffer size and more ring entries to be able to + * better keep with a flood of tiny Ethernet packets. + * + * The receive space MUST ALWAYS be a multiple of the page size. + * And the number of receive descriptors multiplied by the size + * of the receive buffers must equal the recevive space. This + * is so that we can manipulate the page tables so that even if a + * packet wraps around the end of the receive space, we can + * treat it as virtually contiguous. + * + * The above used to be true (the stupid restriction is still true) + * but we gone to directly DMA'ing into MBUFs (unless it's on an + * architecture which can't handle unaligned accesses) because with + * 100Mb/s cards the copying is just too much of a hit. + */ + +#define LMC_RXDESCS 48 +#define LMC_TXDESCS 128 +#define LMC_RXQ_TARGET 32 +#if LMC_RXQ_TARGET >= LMC_RXDESCS +#error LMC_RXQ_TARGET must be less than LMC_RXDESCS +#endif + +#define LMC_RX_BUFLEN ((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16) + +/* + * The various controllers support. Technically the DE425 is just + * a 21040 on EISA. But since it remarkably difference from normal + * 21040s, we give it its own chip id. + */ + +typedef enum { + LMC_21140, LMC_21140A, + LMC_CHIPID_UNKNOWN +} lmc_chipid_t; + +#define LMC_BIT(b) (1L << ((int)(b))) + +typedef struct lmc_xinfo { + u_int32_t Magic0; /* BEEFCAFE */ + + u_int32_t PciCardType; + u_int32_t PciSlotNumber; /* PCI slot number */ + + u_int16_t DriverMajorVersion; + u_int16_t DriverMinorVersion; + u_int16_t DriverSubVersion; + + u_int16_t XilinxRevisionNumber; + u_int16_t MaxFrameSize; + + u_int16_t t1_alarm1_status; + u_int16_t t1_alarm2_status; + + int link_status; + u_int32_t mii_reg16; + + u_int32_t Magic1; /* DEADBEEF */ +} LMC_XINFO; + + +typedef struct { + /* + * Transmit Statistics + */ + u_int32_t dot3StatsSingleCollisionFrames; + u_int32_t dot3StatsMultipleCollisionFrames; + u_int32_t dot3StatsSQETestErrors; + u_int32_t dot3StatsDeferredTransmissions; + u_int32_t dot3StatsLateCollisions; + u_int32_t dot3StatsExcessiveCollisions; + u_int32_t dot3StatsCarrierSenseErrors; + u_int32_t dot3StatsInternalMacTransmitErrors; + u_int32_t dot3StatsInternalTransmitUnderflows; /* not in rfc1650! */ + u_int32_t dot3StatsInternalTransmitBabbles; /* not in rfc1650! */ + /* + * Receive Statistics + */ + u_int32_t dot3StatsMissedFrames; /* not in rfc1650! */ + u_int32_t dot3StatsAlignmentErrors; + u_int32_t dot3StatsFCSErrors; + u_int32_t dot3StatsFrameTooLongs; + u_int32_t dot3StatsInternalMacReceiveErrors; +} lmc_dot3_stats_t; + +/* + * Now to important stuff. This is softc structure (where does softc + * come from??? No idea) for the tulip device. + * + */ +struct lmc___softc { +#if defined(__bsdi__) + struct device lmc_dev; /* base device */ + struct isadev lmc_id; /* ISA device */ + struct intrhand lmc_ih; /* intrrupt vectoring */ + struct atshutdown lmc_ats; /* shutdown hook */ + struct p2pcom lmc_p2pcom; /* point-to-point common stuff */ + +#define lmc_if lmc_p2pcom.p2p_if /* network-visible interface */ +#endif /* __bsdi__ */ + +#if defined(__NetBSD__) + struct device lmc_dev; /* base device */ + void *lmc_ih; /* intrrupt vectoring */ + void *lmc_ats; /* shutdown hook */ + bus_space_tag_t lmc_bustag; + bus_space_handle_t lmc_bushandle; /* CSR region handle */ + pci_chipset_tag_t lmc_pc; +#endif + +#if defined(__NetBSD__) || defined(__FreeBSD__) + struct sppp lmc_sppp; +#define lmc_if lmc_sppp.pp_if +#endif + + u_int8_t lmc_enaddr[6]; /* yes, a small hack... */ + lmc_regfile_t lmc_csrs; + volatile u_int32_t lmc_txtick; + volatile u_int32_t lmc_rxtick; + u_int32_t lmc_flags; + + u_int32_t lmc_features; /* static bits indicating features of chip */ + u_int32_t lmc_intrmask; /* our copy of csr_intr */ + u_int32_t lmc_cmdmode; /* our copy of csr_cmdmode */ + u_int32_t lmc_last_system_error : 3; /* last system error (only value is LMC_SYSTEMERROR is also set) */ + u_int32_t lmc_system_errors; /* number of system errors encountered */ + u_int32_t lmc_statusbits; /* status bits from CSR5 that may need to be printed */ + + u_int8_t lmc_revinfo; /* revision of chip */ + u_int8_t lmc_cardtype; /* LMC_CARDTYPE_HSSI or ..._DS3 */ + u_int32_t lmc_gpio_io; /* state of in/out settings */ + u_int32_t lmc_gpio; /* state of outputs */ + u_int8_t lmc_gp; + + lmc_chipid_t lmc_chipid; /* type of chip we are using */ + u_int32_t lmc_miireg16; + struct ifqueue lmc_txq; + struct ifqueue lmc_rxq; + lmc_dot3_stats_t lmc_dot3stats; + lmc_ringinfo_t lmc_rxinfo; + lmc_ringinfo_t lmc_txinfo; + u_int8_t lmc_rombuf[128]; + lmc_media_t *lmc_media; + lmc_ctl_t ictl; + LMC_XINFO lmc_xinfo; + +#if defined(__NetBSD__) + struct device *lmc_pci_busno; /* needed for multiport boards */ +#else + u_int8_t lmc_pci_busno; /* needed for multiport boards */ +#endif + u_int8_t lmc_pci_devno; /* needed for multiport boards */ +#if defined(__FreeBSD__) + tulip_desc_t *lmc_rxdescs; + tulip_desc_t *lmc_txdescs; +#else + tulip_desc_t lmc_rxdescs[LMC_RXDESCS]; + tulip_desc_t lmc_txdescs[LMC_TXDESCS]; +#endif +#if defined(__NetBSD__) && NRND > 0 + rndsource_element_t lmc_rndsource; +#endif + + u_int32_t lmc_crcSize; + char lmc_timing; /* for HSSI and SSI */ + u_int16_t t1_alarm1_status; + u_int16_t t1_alarm2_status; + + +}; + +/* + * lmc_flags + */ +#define LMC_IFUP 0x00000001 +#define LMC_00000002 0x00000002 +#define LMC_00000004 0x00000004 +#define LMC_00000008 0x00000008 +#define LMC_00000010 0x00000010 +#define LMC_MODEMOK 0x00000020 +#define LMC_00000040 0x00000040 +#define LMC_00000080 0x00000080 +#define LMC_RXACT 0x00000100 +#define LMC_INRESET 0x00000200 +#define LMC_NEEDRESET 0x00000400 +#define LMC_00000800 0x00000800 +#define LMC_00001000 0x00001000 +#define LMC_00002000 0x00002000 +#define LMC_WANTTXSTART 0x00004000 +#define LMC_NEWTXTHRESH 0x00008000 +#define LMC_NOAUTOSENSE 0x00010000 +#define LMC_PRINTLINKUP 0x00020000 +#define LMC_LINKUP 0x00040000 +#define LMC_RXBUFSLOW 0x00080000 +#define LMC_NOMESSAGES 0x00100000 +#define LMC_SYSTEMERROR 0x00200000 +#define LMC_TIMEOUTPENDING 0x00400000 +#define LMC_00800000 0x00800000 +#define LMC_01000000 0x01000000 +#define LMC_02000000 0x02000000 +#define LMC_RXIGNORE 0x04000000 +#define LMC_08000000 0x08000000 +#define LMC_10000000 0x10000000 +#define LMC_20000000 0x20000000 +#define LMC_40000000 0x40000000 +#define LMC_80000000 0x80000000 + +/* + * lmc_features + */ +#define LMC_HAVE_GPR 0x00000001 /* have gp register (140[A]) */ +#define LMC_HAVE_RXBADOVRFLW 0x00000002 /* RX corrupts on overflow */ +#define LMC_HAVE_POWERMGMT 0x00000004 /* Snooze/sleep modes */ +#define LMC_HAVE_MII 0x00000008 /* Some medium on MII */ +#define LMC_HAVE_SIANWAY 0x00000010 /* SIA does NWAY */ +#define LMC_HAVE_DUALSENSE 0x00000020 /* SIA senses both AUI & TP */ +#define LMC_HAVE_SIAGP 0x00000040 /* SIA has a GP port */ +#define LMC_HAVE_BROKEN_HASH 0x00000080 /* Broken Multicast Hash */ +#define LMC_HAVE_ISVSROM 0x00000100 /* uses ISV SROM Format */ +#define LMC_HAVE_BASEROM 0x00000200 /* Board ROM can be cloned */ +#define LMC_HAVE_SLAVEDROM 0x00000400 /* Board ROM cloned */ +#define LMC_HAVE_SLAVEDINTR 0x00000800 /* Board slaved interrupt */ +#define LMC_HAVE_SHAREDINTR 0x00001000 /* Board shares interrupts */ +#define LMC_HAVE_OKROM 0x00002000 /* ROM was recognized */ +#define LMC_HAVE_NOMEDIA 0x00004000 /* did not detect any media */ +#define LMC_HAVE_STOREFWD 0x00008000 /* have CMD_STOREFWD */ +#define LMC_HAVE_SIA100 0x00010000 /* has LS100 in SIA status */ + +static const char * const lmc_system_errors[] = { + "parity error", + "master abort", + "target abort", + "reserved #3", + "reserved #4", + "reserved #5", + "reserved #6", + "reserved #7", +}; + +static const char * const lmc_status_bits[] = { + NULL, + "transmit process stopped", + NULL, + "transmit jabber timeout", + + NULL, + "transmit underflow", + NULL, + "receive underflow", + + "receive process stopped", + "receive watchdog timeout", + NULL, + NULL, + + "link failure", + NULL, + NULL, +}; + +/* + * This driver supports a maximum of 32 tulip boards. + * This should be enough for the forseeable future. + */ +#define LMC_MAX_DEVICES 32 + +#if defined(__FreeBSD__) +typedef void ifnet_ret_t; +typedef int ioctl_cmd_t; +static lmc_softc_t *tulips[LMC_MAX_DEVICES]; +#if BSD >= 199506 +#define LMC_IFP_TO_SOFTC(ifp) ((lmc_softc_t *)((ifp)->if_softc)) +#if NBPFILTER > 0 +#define LMC_BPF_MTAP(sc, m) bpf_mtap(&(sc)->lmc_sppp.pp_if, m) +#define LMC_BPF_TAP(sc, p, l) bpf_tap(&(sc)->lmc_sppp.pp_if, p, l) +#define LMC_BPF_ATTACH(sc) bpfattach(&(sc)->lmc_sppp.pp_if, DLT_PPP, PPP_HEADER_LEN) +#endif +#define lmc_intrfunc_t void +#define LMC_VOID_INTRFUNC +#define IFF_NOTRAILERS 0 +#define CLBYTES PAGE_SIZE +#define LMC_EADDR_FMT "%6D" +#define LMC_EADDR_ARGS(addr) addr, ":" +#else +extern int bootverbose; +#define LMC_IFP_TO_SOFTC(ifp) (LMC_UNIT_TO_SOFTC((ifp)->if_unit)) +#include <sys/devconf.h> +#define LMC_DEVCONF +#endif +#define LMC_UNIT_TO_SOFTC(unit) (tulips[unit]) +#define LMC_BURSTSIZE(unit) pci_max_burst_len +#define loudprintf if (bootverbose) printf +#endif + +#if defined(__bsdi__) +typedef int ifnet_ret_t; +typedef u_long ioctl_cmd_t; +extern struct cfdriver lmccd; +#define LMC_UNIT_TO_SOFTC(unit) ((lmc_softc_t *)lmccd.cd_devs[unit]) +#define LMC_IFP_TO_SOFTC(ifp) (LMC_UNIT_TO_SOFTC((ifp)->if_unit)) +#define loudprintf aprint_verbose +#define MCNT(x) (sizeof(x) / sizeof(struct ifmedia_entry)) +#define lmc_unit lmc_dev.dv_unit +#define lmc_name lmc_p2pcom.p2p_if.if_name +#define LMC_BPF_MTAP(sc, m) +#define LMC_BPF_TAP(sc, p, l) +#define LMC_BPF_ATTACH(sc) +#endif /* __bsdi__ */ + +#if defined(__NetBSD__) +typedef void ifnet_ret_t; +typedef u_long ioctl_cmd_t; +extern struct cfattach de_ca; +extern struct cfdriver de_cd; +#define LMC_UNIT_TO_SOFTC(unit) ((lmc_softc_t *) de_cd.cd_devs[unit]) +#define LMC_IFP_TO_SOFTC(ifp) ((lmc_softc_t *)((ifp)->if_softc)) +#define lmc_unit lmc_dev.dv_unit +#define lmc_xname lmc_if.if_xname +#define LMC_RAISESPL() splnet() +#define LMC_RAISESOFTSPL() splsoftnet() +#define LMC_RESTORESPL(s) splx(s) +#define lmc_enaddr lmc_enaddr +#define loudprintf printf +#define LMC_PRINTF_FMT "%s" +#define LMC_PRINTF_ARGS sc->lmc_xname +#if defined(__alpha__) +/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */ +#define LMC_KVATOPHYS(sc, va) alpha_XXX_dmamap((vm_offset_t)(va)) +#endif +#endif /* __NetBSD__ */ + +#ifndef LMC_PRINTF_FMT +#define LMC_PRINTF_FMT "%s%d" +#endif +#ifndef LMC_PRINTF_ARGS +#define LMC_PRINTF_ARGS sc->lmc_name, sc->lmc_unit +#endif + +#ifndef LMC_BURSTSIZE +#define LMC_BURSTSIZE(unit) 3 +#endif + +#ifndef lmc_unit +#define lmc_unit lmc_sppp.pp_if.if_unit +#endif + +#ifndef lmc_name +#define lmc_name lmc_sppp.pp_if.if_name +#endif + +#if !defined(lmc_bpf) +#if defined(__NetBSD__) || defined(__FreeBSD__) +#define lmc_bpf lmc_sppp.pp_if.if_bpf +#endif +#if defined(__bsdi__) +#define lmc_bpf lmc_if.if_bpf +#endif +#endif + +#if !defined(lmc_intrfunc_t) +#define lmc_intrfunc_t int +#endif + +#if !defined(LMC_KVATOPHYS) +#define LMC_KVATOPHYS(sc, va) vtophys(va) +#endif + +#ifndef LMC_RAISESPL +#define LMC_RAISESPL() splimp() +#endif +#ifndef LMC_RAISESOFTSPL +#define LMC_RAISESOFTSPL() splnet() +#endif +#ifndef TULUP_RESTORESPL +#define LMC_RESTORESPL(s) splx(s) +#endif + +/* + * While I think FreeBSD's 2.2 change to the bpf is a nice simplification, + * it does add yet more conditional code to this driver. Sigh. + */ +#if !defined(LMC_BPF_MTAP) && NBPFILTER > 0 +#define LMC_BPF_MTAP(sc, m) bpf_mtap((sc)->lmc_bpf, m) +#define LMC_BPF_TAP(sc, p, l) bpf_tap((sc)->lmc_bpf, p, l) +#define LMC_BPF_ATTACH(sc) bpfattach(&(sc)->lmc_bpf, &(sc)->lmc_sppp.pp_if, DLT_PPP, PPP_HEADER_LEN) +#endif + +/* + * However, this change to FreeBSD I am much less enamored with. + */ +#if !defined(LMC_EADDR_FMT) +#define LMC_EADDR_FMT "%s" +#define LMC_EADDR_ARGS(addr) ether_sprintf(addr) +#endif + +#define LMC_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian */ +#define LMC_MAX_TXSEG 30 + +#define LMC_ADDREQUAL(a1, a2) \ + (((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \ + && ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \ + && ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2]) +#define LMC_ADDRBRDCST(a1) \ + (((u_int16_t *)a1)[0] == 0xFFFFU \ + && ((u_int16_t *)a1)[1] == 0xFFFFU \ + && ((u_int16_t *)a1)[2] == 0xFFFFU) + +typedef int lmc_spl_t; + +#endif /* !defined(_DEVAR_H) */ |