diff options
| author | drochner <drochner@NetBSD.org> | 1998-04-16 18:00:14 +0000 |
|---|---|---|
| committer | drochner <drochner@NetBSD.org> | 1998-04-16 18:00:14 +0000 |
| commit | 30654f3e890ca729a1a2bbec227eee4e75239249 (patch) | |
| tree | 0ec42a2cc38a9e9086c8199b2db4667df3d59bd5 /sys/dev | |
| parent | 3b9f5eaac1143b7e79bd80f25bd2e56bd8eba7ed (diff) | |
Split out from if_le_isa.c - this card is quite different.
The driver is known not to work (timeout on send attempts).
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/isa/if_depca_isa.c | 461 |
1 files changed, 461 insertions, 0 deletions
diff --git a/sys/dev/isa/if_depca_isa.c b/sys/dev/isa/if_depca_isa.c new file mode 100644 index 00000000000..0c1f93a3ad0 --- /dev/null +++ b/sys/dev/isa/if_depca_isa.c @@ -0,0 +1,461 @@ +/* $NetBSD: if_depca_isa.c,v 1.1 1998/04/16 18:00:14 drochner Exp $ */ + +/*- + * Copyright (c) 1997 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * 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 advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation 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 THE NETBSD FOUNDATION, INC. 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) 1995 Charles M. Hannum. All rights reserved. + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Ralph Campbell and Rick Macklem. + * + * 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 advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University 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 THE REGENTS 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 REGENTS 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. + * + * @(#)if_le.c 8.2 (Berkeley) 11/16/93 + */ + +#include "bpfilter.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/mbuf.h> +#include <sys/syslog.h> +#include <sys/socket.h> +#include <sys/device.h> + +#include <net/if.h> +#include <net/if_ether.h> +#include <net/if_media.h> + +#ifdef INET +#include <netinet/in.h> +#include <netinet/if_inarp.h> +#endif + +#include <vm/vm.h> + +#include <machine/cpu.h> +#include <machine/intr.h> +#include <machine/bus.h> + +#include <dev/isa/isareg.h> +#include <dev/isa/isavar.h> + +#include <dev/ic/am7990reg.h> +#include <dev/ic/am7990var.h> + +#define DEPCA_CSR 0x0 +#define DEPCA_CSR_SHE 0x80 /* Shared memory enabled */ +#define DEPCA_CSR_LOW32K 0x40 /* Map lower 32K chunk */ +#define DEPCA_CSR_DUM 0x08 /* rev E compatibility */ +#define DEPCA_CSR_IM 0x04 /* Interrupt masked */ +#define DEPCA_CSR_IEN 0x02 /* Interrupt enabled */ +#define DEPCA_RDP 0x4 +#define DEPCA_RAP 0x6 +#define DEPCA_ADP 0xc + +struct depca_softc { + struct am7990_softc sc_am7990; /* glue to MI code */ + + void *sc_ih; + bus_space_tag_t sc_iot; + bus_space_tag_t sc_memt; + bus_space_handle_t sc_ioh; + bus_space_handle_t sc_memh; +}; + +int depca_isa_probe __P((struct device *, struct cfdata *, void *)); +void depca_isa_attach __P((struct device *, struct device *, void *)); +int le_depca_probe __P((struct device *, struct cfdata *, void *)); +void le_depca_attach __P((struct device *, struct device *, void *)); + +struct cfattach depca_isa_ca = { + sizeof(struct device), depca_isa_probe, depca_isa_attach +}, le_depca_ca = { + sizeof(struct depca_softc), le_depca_probe, le_depca_attach +}; + +int depca_readprom __P((bus_space_tag_t, bus_space_handle_t, u_int8_t *)); +int depca_intredge __P((void *)); + +hide void depca_wrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t)); +hide u_int16_t depca_rdcsr __P((struct am7990_softc *, u_int16_t)); + +void depca_copytobuf __P((struct am7990_softc *, void *, int, int)); +void depca_copyfrombuf __P((struct am7990_softc *, void *, int, int)); +void depca_zerobuf __P((struct am7990_softc *, int, int)); + +hide void +depca_wrcsr(sc, port, val) + struct am7990_softc *sc; + u_int16_t port, val; +{ + struct depca_softc *lesc = (struct depca_softc *)sc; + bus_space_tag_t iot = lesc->sc_iot; + bus_space_handle_t ioh = lesc->sc_ioh; + + bus_space_write_2(iot, ioh, DEPCA_RAP, port); + bus_space_write_2(iot, ioh, DEPCA_RDP, val); +} + +hide u_int16_t +depca_rdcsr(sc, port) + struct am7990_softc *sc; + u_int16_t port; +{ + struct depca_softc *lesc = (struct depca_softc *)sc; + bus_space_tag_t iot = lesc->sc_iot; + bus_space_handle_t ioh = lesc->sc_ioh; + u_int16_t val; + + bus_space_write_2(iot, ioh, DEPCA_RAP, port); + val = bus_space_read_2(iot, ioh, DEPCA_RDP); + return (val); +} + +int +depca_readprom(iot, ioh, laddr) + bus_space_tag_t iot; + bus_space_handle_t ioh; + u_int8_t *laddr; +{ + int port, i; + + /* + * Extract the physical MAC address from the ROM. + * + * The address PROM is 32 bytes wide, and we access it through + * a single I/O port. On each read, it rotates to the next + * position. We find the ethernet address by looking for a + * particular sequence of bytes (0xff, 0x00, 0x55, 0xaa, 0xff, + * 0x00, 0x55, 0xaa), and then reading the next 8 bytes (the + * ethernet address and a checksum). + * + * It appears that the PROM can be at one of two locations, so + * we just try both. + */ + port = DEPCA_ADP; + for (i = 0; i < 32; i++) + if (bus_space_read_1(iot, ioh, port) == 0xff && + bus_space_read_1(iot, ioh, port) == 0x00 && + bus_space_read_1(iot, ioh, port) == 0x55 && + bus_space_read_1(iot, ioh, port) == 0xaa && + bus_space_read_1(iot, ioh, port) == 0xff && + bus_space_read_1(iot, ioh, port) == 0x00 && + bus_space_read_1(iot, ioh, port) == 0x55 && + bus_space_read_1(iot, ioh, port) == 0xaa) + goto found; + port = DEPCA_ADP + 1; + for (i = 0; i < 32; i++) + if (bus_space_read_1(iot, ioh, port) == 0xff && + bus_space_read_1(iot, ioh, port) == 0x00 && + bus_space_read_1(iot, ioh, port) == 0x55 && + bus_space_read_1(iot, ioh, port) == 0xaa && + bus_space_read_1(iot, ioh, port) == 0xff && + bus_space_read_1(iot, ioh, port) == 0x00 && + bus_space_read_1(iot, ioh, port) == 0x55 && + bus_space_read_1(iot, ioh, port) == 0xaa) + goto found; + printf("depca: address not found\n"); + return (-1); + +found: + + if (laddr) { + for (i = 0; i < 6; i++) + laddr[i] = bus_space_read_1(iot, ioh, port); + } + +#if 0 + sum = + (laddr[0] << 2) + + (laddr[1] << 10) + + (laddr[2] << 1) + + (laddr[3] << 9) + + (laddr[4] << 0) + + (laddr[5] << 8); + sum = (sum & 0xffff) + (sum >> 16); + sum = (sum & 0xffff) + (sum >> 16); + + rom_sum = bus_space_read_1(iot, ioh, port); + rom_sum |= bus_space_read_1(iot, ioh, port) << 8; + + if (sum != rom_sum) { + printf("depca: checksum mismatch; calculated %04x != read %04x", + sum, rom_sum); + return (-1); + } +#endif + + return (0); +} + +int +depca_isa_probe(parent, match, aux) + struct device *parent; + struct cfdata *match; + void *aux; +{ + struct isa_attach_args *ia = aux; + bus_space_tag_t iot = ia->ia_iot; + bus_space_handle_t ioh; + bus_space_handle_t memh; + int rv = 0; + + /* Disallow impossible i/o address. */ + if (ia->ia_iobase != 0x200 && ia->ia_iobase != 0x300) + return (0); + + /* Map i/o space. */ + if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) + return 0; + + if (ia->ia_maddr == MADDRUNK || + (ia->ia_msize != 32*1024 && ia->ia_msize != 64*1024)) + goto bad; + + /* Map card RAM. */ + if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) + goto bad; + + /* Just needed to check mapability; don't need it anymore. */ + bus_space_unmap(ia->ia_memt, memh, ia->ia_msize); + + /* Stop the LANCE chip and put it in a known state. */ + bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0); + bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C0_STOP); + delay(100); + + bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0); + if (bus_space_read_2(iot, ioh, DEPCA_RDP) != LE_C0_STOP) + goto bad; + + bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR3); + bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C3_ACON); + + bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM); + + if (depca_readprom(iot, ioh, 0)) + goto bad; + + ia->ia_iosize = 16; + rv = 1; + +bad: + bus_space_unmap(iot, ioh, 16); + return (rv); +} + +void +depca_isa_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + printf("\n"); + + config_found(self, aux, 0); +} + +int +le_depca_probe(parent, match, aux) + struct device *parent; + struct cfdata *match; + void *aux; +{ + return (1); +} + +void +le_depca_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct depca_softc *lesc = (void *)self; + struct am7990_softc *sc = &lesc->sc_am7990; + struct isa_attach_args *ia = aux; + bus_space_tag_t iot = ia->ia_iot; + bus_space_tag_t memt = ia->ia_memt; + bus_space_handle_t ioh, memh; + u_char val; + int i; + + printf("\n"); + + if (bus_space_map(iot, ia->ia_iobase, 16, 0, &ioh)) + panic("%s: can't map io", self->dv_xname); + + /* Map shared memory. */ + if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) + panic("%s: can't map mem space", self->dv_xname); + + lesc->sc_iot = iot; + lesc->sc_ioh = ioh; + lesc->sc_memt = memt; + lesc->sc_memh = memh; + + if (depca_readprom(iot, ioh, sc->sc_enaddr)) { + printf("%s: can't read PROM\n", self->dv_xname); + return; + } + + bus_space_write_1(iot, ioh, DEPCA_CSR, + DEPCA_CSR_DUM | DEPCA_CSR_IEN | DEPCA_CSR_SHE + | (ia->ia_msize == 32*1024 ? DEPCA_CSR_LOW32K : 0)); + + val = 0xff; + for (;;) { + bus_space_set_region_1(memt, memh, 0, val, + ia->ia_msize); + for (i = 0; i < ia->ia_msize; i++) + if (bus_space_read_1(memt, memh, 1) != val) { + printf("%s: failed to clear memory\n", + sc->sc_dev.dv_xname); + return; + } + if (val == 0x00) + break; + val -= 0x55; + } + + sc->sc_conf3 = LE_C3_ACON; + sc->sc_mem = 0; /* Not used. */ + sc->sc_addr = 0; + sc->sc_memsize = ia->ia_msize; + + sc->sc_copytodesc = depca_copytobuf; + sc->sc_copyfromdesc = depca_copyfrombuf; + sc->sc_copytobuf = depca_copytobuf; + sc->sc_copyfrombuf = depca_copyfrombuf; + sc->sc_zerobuf = depca_zerobuf; + + sc->sc_rdcsr = depca_rdcsr; + sc->sc_wrcsr = depca_wrcsr; + sc->sc_hwinit = NULL; + + printf("%s", sc->sc_dev.dv_xname); + am7990_config(sc); + + lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, + IPL_NET, depca_intredge, sc); +} + +/* + * Controller interrupt. + */ +int +depca_intredge(arg) + void *arg; +{ + + if (am7990_intr(arg) == 0) + return (0); + for (;;) + if (am7990_intr(arg) == 0) + return (1); +} + +/* + * DEPCA shared memory access functions. + */ + +void +depca_copytobuf(sc, from, boff, len) + struct am7990_softc *sc; + void *from; + int boff, len; +{ + struct depca_softc *lesc = (struct depca_softc *)sc; + + bus_space_write_region_1(lesc->sc_memt, lesc->sc_memh, boff, + from, len); +} + +void +depca_copyfrombuf(sc, to, boff, len) + struct am7990_softc *sc; + void *to; + int boff, len; +{ + struct depca_softc *lesc = (struct depca_softc *)sc; + + bus_space_read_region_1(lesc->sc_memt, lesc->sc_memh, boff, + to, len); +} + +void +depca_zerobuf(sc, boff, len) + struct am7990_softc *sc; + int boff, len; +{ + struct depca_softc *lesc = (struct depca_softc *)sc; + +#if 0 /* XXX !! */ + bus_space_set_region_1(lesc->sc_memt, lesc->sc_memh, boff, + 0x00, len); +#else + for (; len != 0; boff++, len--) + bus_space_write_1(lesc->sc_memt, lesc->sc_memh, boff, 0x00); +#endif +} |
