diff options
Diffstat (limited to 'sys/dev/pdq/if_fea.c')
-rw-r--r-- | sys/dev/pdq/if_fea.c | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/sys/dev/pdq/if_fea.c b/sys/dev/pdq/if_fea.c new file mode 100644 index 0000000..1245d61 --- /dev/null +++ b/sys/dev/pdq/if_fea.c @@ -0,0 +1,298 @@ +/*- + * Copyright (c) 1995, 1996 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. + * + * $FreeBSD$ + */ + +/* + * DEC PDQ FDDI Controller + * + * This module support the DEFEA EISA FDDI Controller. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/socket.h> + +#include <sys/module.h> +#include <sys/bus.h> + +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/rman.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_media.h> +#include <net/fddi.h> + +#include <dev/eisa/eisaconf.h> + +#include <dev/pdq/pdq_freebsd.h> +#include <dev/pdq/pdqreg.h> + +static void pdq_eisa_subprobe (pdq_bus_t, u_int32_t, u_int32_t *, u_int32_t *, u_int32_t *); +static void pdq_eisa_devinit (pdq_softc_t *); +static const char * pdq_eisa_match (eisa_id_t); + +static int pdq_eisa_probe (device_t); +static int pdq_eisa_attach (device_t); +static int pdq_eisa_detach (device_t); +static int pdq_eisa_shutdown (device_t); +static void pdq_eisa_ifintr (void *); + +#define DEFEA_IRQS 0x0000FBA9U + +#define DEFEA_INTRENABLE 0x8 /* level interrupt */ +#define DEFEA_DECODE_IRQ(n) ((DEFEA_IRQS >> ((n) << 2)) & 0x0f) + +#define EISA_DEVICE_ID_DEC_DEC3001 0x10a33001 +#define EISA_DEVICE_ID_DEC_DEC3002 0x10a33002 +#define EISA_DEVICE_ID_DEC_DEC3003 0x10a33003 +#define EISA_DEVICE_ID_DEC_DEC3004 0x10a33004 + +static void +pdq_eisa_subprobe(bc, iobase, maddr, msize, irq) + pdq_bus_t bc; + u_int32_t iobase; + u_int32_t *maddr; + u_int32_t *msize; + u_int32_t *irq; +{ + if (irq != NULL) + *irq = DEFEA_DECODE_IRQ(PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_IO_CONFIG_STAT_0) & 3); + *maddr = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_0) << 8) + | (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_1) << 16); + *msize = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_MASK_0) + 4) << 8; + + return; +} + +static void +pdq_eisa_devinit (sc) + pdq_softc_t *sc; +{ + pdq_uint8_t data; + + /* + * Do the standard initialization for the DEFEA registers. + */ + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_FUNCTION_CTRL, 0x23); + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CMP_1_1, (sc->io_bsh >> 8) & 0xF0); + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CMP_0_1, (sc->io_bsh >> 8) & 0xF0); + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_SLOT_CTRL, 0x01); + data = PDQ_OS_IORD_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF); +#if defined(PDQ_IOMAPPED) + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF, data & ~1); +#else + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF, data | 1); +#endif + data = PDQ_OS_IORD_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CONFIG_STAT_0); + PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CONFIG_STAT_0, data | DEFEA_INTRENABLE); + + return; +} + +static const char * +pdq_eisa_match (type) + eisa_id_t type; +{ + switch (type) { + case EISA_DEVICE_ID_DEC_DEC3001: + case EISA_DEVICE_ID_DEC_DEC3002: + case EISA_DEVICE_ID_DEC_DEC3003: + case EISA_DEVICE_ID_DEC_DEC3004: + return ("DEC FDDIcontroller/EISA Adapter"); + break; + default: + break; + } + return (NULL); +} + +static int +pdq_eisa_probe (dev) + device_t dev; +{ + const char *desc; + u_int32_t iobase; + u_int32_t irq; + u_int32_t maddr; + u_int32_t msize; + + u_int32_t eisa_id = eisa_get_id(dev);; + + desc = pdq_eisa_match(eisa_id); + if (!desc) { + return (ENXIO); + } + + device_set_desc(dev, desc); + + iobase = eisa_get_slot(dev) * EISA_SLOT_SIZE; + pdq_eisa_subprobe(SYS_RES_IOPORT, iobase, &maddr, &msize, &irq); + + eisa_add_iospace(dev, iobase, 0x200, RESVADDR_NONE); + eisa_add_mspace(dev, maddr, msize, RESVADDR_NONE); + eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL); + + return (0); +} + +static void +pdq_eisa_ifintr(arg) + void * arg; +{ + device_t dev; + pdq_softc_t * sc; + + dev = (device_t)arg; + sc = device_get_softc(dev); + + PDQ_LOCK(sc); + (void) pdq_interrupt(sc->sc_pdq); + PDQ_LOCK(sc); + + return; +} + +static int +pdq_eisa_attach (dev) + device_t dev; +{ + pdq_softc_t * sc; + struct ifnet * ifp; + int error; + + sc = device_get_softc(dev); + ifp = &sc->arpcom.ac_if; + + sc->dev = dev; + + sc->io_rid = 0; + sc->io_type = SYS_RES_IOPORT; + sc->io = bus_alloc_resource(dev, sc->io_type, &sc->io_rid, + 0, ~0, 1, RF_ACTIVE); + if (!sc->io) { + device_printf(dev, "Unable to allocate I/O space resource.\n"); + error = ENXIO; + goto bad; + } + sc->io_bsh = rman_get_bushandle(sc->io); + sc->io_bst = rman_get_bustag(sc->io); + + sc->mem_rid = 0; + sc->mem_type = SYS_RES_MEMORY; + sc->mem = bus_alloc_resource(dev, sc->mem_type, &sc->mem_rid, + 0, ~0, 1, RF_ACTIVE); + if (!sc->mem) { + device_printf(dev, "Unable to allocate memory resource.\n"); + error = ENXIO; + goto bad; + } + sc->mem_bsh = rman_get_bushandle(sc->mem); + sc->mem_bst = rman_get_bustag(sc->mem); + + sc->irq_rid = 0; + sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid, + 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); + if (!sc->irq) { + device_printf(dev, "Unable to allocate interrupt resource.\n"); + error = ENXIO; + goto bad; + } + + ifp->if_name = "fea"; + ifp->if_unit = device_get_unit(dev); + + pdq_eisa_devinit(sc); + sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh, + ifp->if_name, ifp->if_unit, + (void *)sc, PDQ_DEFEA); + if (sc->sc_pdq == NULL) { + device_printf(dev, "Initialization failed.\n"); + error = ENXIO; + goto bad; + } + + error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, + pdq_eisa_ifintr, dev, &sc->irq_ih); + if (error) { + device_printf(dev, "Failed to setup interrupt handler.\n"); + error = ENXIO; + goto bad; + } + + bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, + (caddr_t) sc->arpcom.ac_enaddr, FDDI_ADDR_LEN); + pdq_ifattach(sc); + + return (0); +bad: + pdq_free(dev); + return (error); +} + +static int +pdq_eisa_detach (dev) + device_t dev; +{ + pdq_softc_t * sc; + + sc = device_get_softc(dev); + pdq_ifdetach(sc); + + return (0); +} + +static int +pdq_eisa_shutdown(dev) + device_t dev; +{ + pdq_softc_t * sc; + + sc = device_get_softc(dev); + pdq_hwreset(sc->sc_pdq); + + return (0); +} + +static device_method_t pdq_eisa_methods[] = { + DEVMETHOD(device_probe, pdq_eisa_probe), + DEVMETHOD(device_attach, pdq_eisa_attach), + DEVMETHOD(device_attach, pdq_eisa_detach), + DEVMETHOD(device_shutdown, pdq_eisa_shutdown), + + { 0, 0 } +}; + +static driver_t pdq_eisa_driver = { + "fea", + pdq_eisa_methods, + sizeof(pdq_softc_t), +}; + +DRIVER_MODULE(if_fea, eisa, pdq_eisa_driver, pdq_devclass, 0, 0); +/* MODULE_DEPEND(if_fea, eisa, 1, 1, 1); */ +MODULE_DEPEND(if_fea, fddi, 1, 1, 1); |