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NetBSD/sys/dev/pci/if_lmc_common.c
martin 99772f59c4 Move net/if_sppp.h to net/if_spppvar.h, create a new net/if_sppp.h 
containing the userland visible thinks (i.e. ioctl definitions).

Remove all (both) old ioctls, as they had a brain dead API and made keeping
binary compatibility more or less impossible.

Replace by several new ioctls. While there, remove any arbitrary limits
(resulting from the old, broken ioctls) and allow any length of names
and passwords.
2002-01-04 12:21:24 +00:00

440 lines
12 KiB
C
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/* $NetBSD: if_lmc_common.c,v 1.9 2002/01/04 12:21:24 martin Exp $ */
/*-
* Copyright (c) 1997-1999 LAN Media Corporation (LMC)
* All rights reserved. www.lanmedia.com
*
* This code is written by Michael Graff <graff@vix.com> for LMC.
* The code is derived from permitted modifications to software created
* by Matt Thomas (matt@3am-software.com).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. All marketing or advertising materials mentioning features or
* use of this software must display the following acknowledgement:
* This product includes software developed by LAN Media Corporation
* and its contributors.
* 4. Neither the name of LAN Media Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY LAN MEDIA CORPORATION AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*-
* Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
* 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 without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_lmc_common.c,v 1.9 2002/01/04 12:21:24 martin Exp $");
#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
#if defined(__FreeBSD__)
#include <net/if_sppp.h>
#elif defined(__NetBSD__)
#include <net/if_spppvar.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(__NetBSD__)
#include <uvm/uvm_extern.h>
#endif
#if defined(__FreeBSD__)
#include <vm/vm.h>
#include <vm/pmap.h>
#include <pci.h>
#if NPCI > 0
#include <pci/pcivar.h>
#include <pci/dc21040reg.h>
#endif
#endif /* __FreeBSD__ */
#if defined(__bsdi__)
#include <vm/vm.h>
#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>
#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>
#endif /* __NetBSD__ */
/*
* Sigh. Every OS puts these in different places.
*/
#if defined(__NetBSD__)
#include <dev/pci/if_lmc_types.h>
#include <dev/pci/if_lmcioctl.h>
#include <dev/pci/if_lmcvar.h>
#elif defined(__FreeBSD__)
#include "pci/if_lmc_types.h"
#include "pci/if_lmcioctl.h"
#include "pci/if_lmcvar.h"
#else /* BSDI */
#include "i386/pci/if_lmctypes.h"
#include "i386/pci/if_lmcioctl.h"
#include "i386/pci/if_lmcvar.h"
#endif
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));
}
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));
}
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);
}
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);
}
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);
}
void
lmc_dec_reset(lmc_softc_t * const sc)
{
#ifndef __linux__
lmc_ringinfo_t *ri;
lmc_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
*/
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NOTX)
LMC_CSR_WRITE(sc, csr_txlist, sc->lmc_txdescmap->dm_segs[0].ds_addr);
#else
LMC_CSR_WRITE(sc, csr_txlist,
LMC_KVATOPHYS(sc, &sc->lmc_txinfo.ri_first[0]));
#endif
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NORX)
LMC_CSR_WRITE(sc, csr_rxlist, sc->lmc_rxdescmap->dm_segs[0].ds_addr);
#else
LMC_CSR_WRITE(sc, csr_rxlist,
LMC_KVATOPHYS(sc, &sc->lmc_rxinfo.ri_first[0]));
#endif
LMC_CSR_WRITE(sc, csr_busmode,
(1 << (LMC_BURSTSIZE(sc->lmc_unit) + 8))
|TULIP_BUSMODE_CACHE_ALIGN8
|TULIP_BUSMODE_READMULTIPLE);
sc->lmc_txq.ifq_maxlen = LMC_TXDESCS;
/*
* Free all the mbufs that were on the transmit ring.
*/
for (;;) {
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NOTX)
bus_dmamap_t map;
#endif
struct mbuf *m;
IF_DEQUEUE(&sc->lmc_txq, m);
if (m == NULL)
break;
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NOTX)
map = M_GETCTX(m, bus_dmamap_t);
bus_dmamap_unload(sc->lmc_dmatag, map);
sc->lmc_txmaps[sc->lmc_txmaps_free++] = map;
#endif
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;
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NOTX)
bus_dmamap_sync(sc->lmc_dmatag, sc->lmc_txdescmap,
0, sc->lmc_txdescmap->dm_mapsize,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
#endif
/*
* 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++) {
u_int32_t ctl = di->d_ctl;
di->d_status = 0;
di->d_ctl = LMC_CTL(LMC_CTL_FLGS(ctl),0,0);
di->d_addr1 = 0;
di->d_addr2 = 0;
}
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NORX)
bus_dmamap_sync(sc->lmc_dmatag, sc->lmc_rxdescmap,
0, sc->lmc_rxdescmap->dm_mapsize,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
#endif
for (;;) {
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NORX)
bus_dmamap_t map;
#endif
struct mbuf *m;
IF_DEQUEUE(&sc->lmc_rxq, m);
if (m == NULL)
break;
#if defined(LMC_BUS_DMA) && !defined(LMC_BUS_DMA_NORX)
map = M_GETCTX(m, bus_dmamap_t);
bus_dmamap_unload(sc->lmc_dmatag, map);
sc->lmc_rxmaps[sc->lmc_rxmaps_free++] = map;
#endif
m_freem(m);
}
#endif
}
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;
}
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