271 lines
6.9 KiB
C
271 lines
6.9 KiB
C
/*-
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* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* DEC PDQ FDDI Controller
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*
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* This module support the DEFEA EISA FDDI Controller.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <i386/eisa/eisaconf.h>
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#include <dev/pdq/pdqvar.h>
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#include <dev/pdq/pdqreg.h>
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static void pdq_eisa_subprobe __P((pdq_bus_t, u_int32_t, u_int32_t *, u_int32_t *, u_int32_t *));
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static void pdq_eisa_devinit __P((pdq_softc_t *));
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static const char * pdq_eisa_match __P((eisa_id_t));
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static int pdq_eisa_probe __P((device_t));
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static int pdq_eisa_attach __P((device_t));
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void pdq_eisa_intr __P((void *));
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static int pdq_eisa_shutdown __P((device_t));
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#define DEFEA_IRQS 0x0000FBA9U
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#define DEFEA_INTRENABLE 0x8 /* level interrupt */
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#define DEFEA_DECODE_IRQ(n) ((DEFEA_IRQS >> ((n) << 2)) & 0x0f)
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#define EISA_DEVICE_ID_DEC_DEC3001 0x10a33001
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#define EISA_DEVICE_ID_DEC_DEC3002 0x10a33002
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#define EISA_DEVICE_ID_DEC_DEC3003 0x10a33003
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#define EISA_DEVICE_ID_DEC_DEC3004 0x10a33004
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static void
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pdq_eisa_subprobe(bc, iobase, maddr, msize, irq)
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pdq_bus_t bc;
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u_int32_t iobase;
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u_int32_t *maddr;
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u_int32_t *msize;
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u_int32_t *irq;
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{
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if (irq != NULL)
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*irq = DEFEA_DECODE_IRQ(PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_IO_CONFIG_STAT_0) & 3);
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*maddr = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_0) << 8)
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| (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_1) << 16);
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*msize = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_MASK_0) + 4) << 8;
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return;
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}
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static void
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pdq_eisa_devinit (sc)
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pdq_softc_t *sc;
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{
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pdq_uint8_t data;
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/*
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* Do the standard initialization for the DEFEA registers.
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*/
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_FUNCTION_CTRL, 0x23);
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CMP_1_1, (sc->sc_iobase >> 8) & 0xF0);
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CMP_0_1, (sc->sc_iobase >> 8) & 0xF0);
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_SLOT_CTRL, 0x01);
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data = PDQ_OS_IORD_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF);
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#if defined(PDQ_IOMAPPED)
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF, data & ~1);
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#else
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF, data | 1);
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#endif
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data = PDQ_OS_IORD_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CONFIG_STAT_0);
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PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CONFIG_STAT_0, data | DEFEA_INTRENABLE);
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return;
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}
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static const char *
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pdq_eisa_match (type)
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eisa_id_t type;
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{
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switch (type) {
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case EISA_DEVICE_ID_DEC_DEC3001:
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case EISA_DEVICE_ID_DEC_DEC3002:
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case EISA_DEVICE_ID_DEC_DEC3003:
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case EISA_DEVICE_ID_DEC_DEC3004:
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return ("DEC FDDIcontroller/EISA Adapter");
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break;
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default:
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break;
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}
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return (NULL);
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}
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static int
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pdq_eisa_probe (dev)
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device_t dev;
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{
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const char *desc;
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u_int32_t iobase;
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u_int32_t irq;
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u_int32_t maddr;
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u_int32_t msize;
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u_int32_t eisa_id = eisa_get_id(dev);;
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desc = pdq_eisa_match(eisa_id);
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if (!desc) {
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return (ENXIO);
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}
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device_set_desc(dev, desc);
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iobase = eisa_get_slot(dev) * EISA_SLOT_SIZE;
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pdq_eisa_subprobe(PDQ_BUS_EISA, iobase, &maddr, &msize, &irq);
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eisa_add_iospace(dev, iobase, 0x200, RESVADDR_NONE);
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eisa_add_mspace(dev, maddr, msize, RESVADDR_NONE);
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eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL);
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return (0);
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}
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void
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pdq_eisa_intr(xdev)
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void *xdev;
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{
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device_t dev = (device_t) xdev;
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pdq_softc_t *sc = device_get_softc(dev);
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(void) pdq_interrupt(sc->sc_pdq);
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return;
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}
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static int
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pdq_eisa_attach (dev)
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device_t dev;
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{
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pdq_softc_t *sc = device_get_softc(dev);
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struct resource *io = 0;
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struct resource *irq = 0;
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struct resource *mspace = 0;
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int rid;
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void *ih;
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u_int32_t m_addr, m_size;
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rid = 0;
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!io) {
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device_printf(dev, "No I/O space?!\n");
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goto bad;
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}
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rid = 0;
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mspace = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!mspace) {
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device_printf(dev, "No memory space?!\n");
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goto bad;
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}
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rid = 0;
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irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (!irq) {
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device_printf(dev, "No, irq?!\n");
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goto bad;
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}
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m_addr = rman_get_start(mspace);
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m_size = (rman_get_end(mspace) - rman_get_start(mspace)) + 1;
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sc->sc_iobase = (pdq_bus_ioport_t) rman_get_start(io);
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sc->sc_membase = (pdq_bus_memaddr_t) pmap_mapdev(m_addr, m_size);
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sc->sc_if.if_name = "fea";
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sc->sc_if.if_unit = device_get_unit(dev);
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pdq_eisa_devinit(sc);
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sc->sc_pdq = pdq_initialize(PDQ_BUS_EISA, sc->sc_membase,
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sc->sc_if.if_name, sc->sc_if.if_unit,
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(void *) sc, PDQ_DEFEA);
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if (sc->sc_pdq == NULL) {
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device_printf(dev, "initialization failed\n");
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goto bad;
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}
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if (bus_setup_intr(dev, irq, INTR_TYPE_NET, pdq_eisa_intr, dev, &ih)) {
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goto bad;
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}
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bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
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pdq_ifattach(sc, NULL);
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return (0);
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bad:
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if (io)
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bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
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if (irq)
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bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
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if (mspace)
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bus_release_resource(dev, SYS_RES_MEMORY, 0, mspace);
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return (-1);
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}
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static int
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pdq_eisa_shutdown(dev)
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device_t dev;
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{
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pdq_softc_t *sc = device_get_softc(dev);
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pdq_hwreset(sc->sc_pdq);
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return (0);
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}
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static device_method_t pdq_eisa_methods[] = {
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DEVMETHOD(device_probe, pdq_eisa_probe),
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DEVMETHOD(device_attach, pdq_eisa_attach),
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DEVMETHOD(device_shutdown, pdq_eisa_shutdown),
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{ 0, 0 }
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};
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static driver_t pdq_eisa_driver = {
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"fea",
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pdq_eisa_methods,
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sizeof(pdq_softc_t),
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};
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static devclass_t pdq_devclass;
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DRIVER_MODULE(pdq, eisa, pdq_eisa_driver, pdq_devclass, 0, 0);
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