/* $NetBSD: if_fmv_isa.c,v 1.13 2008/04/12 06:27:01 tsutsui Exp $ */ /* * All Rights Reserved, Copyright (C) Fujitsu Limited 1995 * * This software may be used, modified, copied, distributed, and sold, in * both source and binary form provided that the above copyright, these * terms and the following disclaimer are retained. The name of the author * and/or the contributor 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 AND THE CONTRIBUTOR ``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 OR THE CONTRIBUTOR 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. */ /* * Portions copyright (C) 1993, David Greenman. This software may be used, * modified, copied, distributed, and sold, in both source and binary form * provided that the above copyright and these terms are retained. Under no * circumstances is the author responsible for the proper functioning of this * software, nor does the author assume any responsibility for damages * incurred with its use. */ #include __KERNEL_RCSID(0, "$NetBSD: if_fmv_isa.c,v 1.13 2008/04/12 06:27:01 tsutsui Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include int fmv_isa_match(device_t, cfdata_t, void *); void fmv_isa_attach(device_t, device_t, void *); struct fmv_isa_softc { struct mb86960_softc sc_mb86960; /* real "mb86960" softc */ /* ISA-specific goo. */ void *sc_ih; /* interrupt cookie */ }; CFATTACH_DECL_NEW(fmv_isa, sizeof(struct fmv_isa_softc), fmv_isa_match, fmv_isa_attach, NULL, NULL); struct fe_simple_probe_struct { uint8_t port; /* Offset from the base I/O address. */ uint8_t mask; /* Bits to be checked. */ uint8_t bits; /* Values to be compared against. */ }; static inline int fe_simple_probe(bus_space_tag_t, bus_space_handle_t, struct fe_simple_probe_struct const *); static int fmv_find(bus_space_tag_t, bus_space_handle_t, int *, int *); static const int fmv_iomap[8] = { 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x300, 0x340 }; #define NFMV_IOMAP __arraycount(fmv_iomap) #define FMV_NPORTS 0x20 #ifdef FMV_DEBUG #define DPRINTF printf #else #define DPRINTF while (/* CONSTCOND */0) printf #endif /* * Hardware probe routines. */ /* * Determine if the device is present. */ int fmv_isa_match(device_t parent, cfdata_t cf, void *aux) { struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; int i, iobase, irq, rv = 0; uint8_t myea[ETHER_ADDR_LEN]; if (ia->ia_nio < 1) return 0; if (ia->ia_nirq < 1) return 0; if (ISA_DIRECT_CONFIG(ia)) return 0; /* Disallow wildcarded values. */ if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) return 0; /* * See if the sepcified address is valid for FMV-180 series. */ for (i = 0; i < NFMV_IOMAP; i++) if (fmv_iomap[i] == ia->ia_io[0].ir_addr) break; if (i == NFMV_IOMAP) { DPRINTF("%s: unknown iobase 0x%x\n", __func__, ia->ia_io[0].ir_addr); return 0; } /* Map i/o space. */ if (bus_space_map(iot, ia->ia_io[0].ir_addr, FMV_NPORTS, 0, &ioh)) { DPRINTF("%s: couldn't map iospace 0x%x\n", __func__, ia->ia_io[0].ir_addr); return 0; } if (fmv_find(iot, ioh, &iobase, &irq) == 0) { DPRINTF("%s: fmv_find failed\n", __func__); goto out; } if (iobase != ia->ia_io[0].ir_addr) { DPRINTF("%s: unexpected iobase in board: 0x%x\n", __func__, iobase); goto out; } if (fmv_detect(iot, ioh, myea) == 0) { /* XXX necessary? */ DPRINTF("%s: fmv_detect failed\n", __func__); goto out; } if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ) { if (ia->ia_irq[0].ir_irq != irq) { aprint_error("%s: irq mismatch; " "kernel configured %d != board configured %d\n", __func__, ia->ia_irq[0].ir_irq, irq); goto out; } } else ia->ia_irq[0].ir_irq = irq; ia->ia_nio = 1; ia->ia_io[0].ir_size = FMV_NPORTS; ia->ia_nirq = 1; ia->ia_niomem = 0; ia->ia_ndrq = 0; rv = 1; out: bus_space_unmap(iot, ioh, FMV_NPORTS); return rv; } /* * Check for specific bits in specific registers have specific values. */ static inline int fe_simple_probe(bus_space_tag_t iot, bus_space_handle_t ioh, const struct fe_simple_probe_struct *sp) { uint8_t val; const struct fe_simple_probe_struct *p; for (p = sp; p->mask != 0; p++) { val = bus_space_read_1(iot, ioh, p->port); if ((val & p->mask) != p->bits) { DPRINTF("%s: %x & %x != %x\n", __func__, val, p->mask, p->bits); return 0; } } return 1; } /* * Hardware (vendor) specific probe routines. */ /* * Probe Fujitsu FMV-180 series boards and get iobase and irq from * board. */ static int fmv_find(bus_space_tag_t iot, bus_space_handle_t ioh, int *iobase, int *irq) { uint8_t config; static const int fmv_irqmap[4] = { 3, 7, 10, 15 }; static const struct fe_simple_probe_struct probe_table[] = { { FE_DLCR2, 0x70, 0x00 }, { FE_DLCR4, 0x08, 0x00 }, /* { FE_DLCR5, 0x80, 0x00 }, Doesn't work. */ { FE_FMV0, FE_FMV0_MAGIC_MASK, FE_FMV0_MAGIC_VALUE }, { FE_FMV1, FE_FMV1_MAGIC_MASK, FE_FMV1_MAGIC_VALUE }, { FE_FMV3, FE_FMV3_EXTRA_MASK, FE_FMV3_EXTRA_VALUE }, #if 1 /* * Test *vendor* part of the station address for Fujitsu. * The test will gain reliability of probe process, but * it rejects FMV-180 clone boards manufactured by other vendors. * We have to turn the test off when such cards are made available. */ { FE_FMV4, 0xFF, 0x00 }, { FE_FMV5, 0xFF, 0x00 }, { FE_FMV6, 0xFF, 0x0E }, #else /* * We can always verify the *first* 2 bits (in Ehternet * bit order) are "no multicast" and "no local" even for * unknown vendors. */ { FE_FMV4, 0x03, 0x00 }, #endif { 0, 0x00, 0x00 }, }; /* Simple probe. */ if (fe_simple_probe(iot, ioh, probe_table) == 0) return 0; /* Check if our I/O address matches config info on EEPROM. */ config = bus_space_read_1(iot, ioh, FE_FMV2); *iobase = fmv_iomap[(config & FE_FMV2_ADDR) >> FE_FMV2_ADDR_SHIFT]; /* * Determine which IRQ to be used. * * In this version, we always get an IRQ assignment from the * FMV-180's configuration EEPROM, ignoring that specified in * config file. */ *irq = fmv_irqmap[(config & FE_FMV2_IRQ) >> FE_FMV2_IRQ_SHIFT]; return 1; } void fmv_isa_attach(device_t parent, device_t self, void *aux) { struct fmv_isa_softc *isc = device_private(self); struct mb86960_softc *sc = &isc->sc_mb86960; struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; sc->sc_dev = self; /* Map i/o space. */ if (bus_space_map(iot, ia->ia_io[0].ir_addr, FMV_NPORTS, 0, &ioh)) { aprint_error(": can't map i/o space\n"); return; } sc->sc_bst = iot; sc->sc_bsh = ioh; fmv_attach(sc); /* Establish the interrupt handler. */ isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_NET, mb86960_intr, sc); if (isc->sc_ih == NULL) aprint_error_dev(sc->sc_dev, "couldn't establish interrupt handler\n"); }