/* $NetBSD: tcic2_isa.c,v 1.25 2009/05/12 09:10:16 cegger Exp $ */ /* * * Copyright (c) 1998, 1999 Christoph Badura. All rights reserved. * Copyright (c) 1997 Marc Horowitz. 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. 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 Marc Horowitz. * 4. 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 __KERNEL_RCSID(0, "$NetBSD: tcic2_isa.c,v 1.25 2009/05/12 09:10:16 cegger Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include /***************************************************************************** * Configurable parameters. *****************************************************************************/ #include "opt_tcic_isa_alloc_iobase.h" #include "opt_tcic_isa_alloc_iosize.h" #include "opt_tcic_isa_intr_alloc_mask.h" /* * Default I/O allocation range. If both are set to non-zero, these * values will be used instead. Otherwise, the code attempts to probe * the bus width. Systems with 10 address bits should use 0x300 and 0xff. * Systems with 12 address bits (most) should use 0x400 and 0xbff. */ #ifndef TCIC_ISA_ALLOC_IOBASE #define TCIC_ISA_ALLOC_IOBASE 0 #endif #ifndef TCIC_ISA_ALLOC_IOSIZE #define TCIC_ISA_ALLOC_IOSIZE 0 #endif int tcic_isa_alloc_iobase = TCIC_ISA_ALLOC_IOBASE; int tcic_isa_alloc_iosize = TCIC_ISA_ALLOC_IOSIZE; /* * Default IRQ allocation bitmask. This defines the range of allowable * IRQs for PCMCIA slots. Useful if order of probing would screw up other * devices, or if TCIC hardware/cards have trouble with certain interrupt * lines. * * We disable IRQ 10 by default, since some common laptops (namely, the * NEC Versa series) reserve IRQ 10 for the docking station SCSI interface. * * XXX Do we care about this? the Versa doesn't use a tcic. -chb */ #ifndef TCIC_ISA_INTR_ALLOC_MASK #define TCIC_ISA_INTR_ALLOC_MASK 0xffff #endif int tcic_isa_intr_alloc_mask = TCIC_ISA_INTR_ALLOC_MASK; /***************************************************************************** * End of configurable parameters. *****************************************************************************/ #ifdef TCICISADEBUG int tcic_isa_debug = 1; #define DPRINTF(arg) if (tcic_isa_debug) printf arg; #else #define DPRINTF(arg) #endif int tcic_isa_probe(device_t, cfdata_t, void *); void tcic_isa_attach(device_t, device_t, void *); void *tcic_isa_chip_intr_establish(pcmcia_chipset_handle_t, struct pcmcia_function *, int, int (*) (void *), void *); void tcic_isa_chip_intr_disestablish(pcmcia_chipset_handle_t, void *); CFATTACH_DECL(tcic_isa, sizeof(struct tcic_softc), tcic_isa_probe, tcic_isa_attach, NULL, NULL); static const struct pcmcia_chip_functions tcic_isa_functions = { tcic_chip_mem_alloc, tcic_chip_mem_free, tcic_chip_mem_map, tcic_chip_mem_unmap, tcic_chip_io_alloc, tcic_chip_io_free, tcic_chip_io_map, tcic_chip_io_unmap, tcic_isa_chip_intr_establish, tcic_isa_chip_intr_disestablish, tcic_chip_socket_enable, tcic_chip_socket_disable, tcic_chip_socket_settype, NULL, /* card_detect */ }; int tcic_isa_probe(device_t parent, cfdata_t match, void *aux) { struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh, memh; int val, found, msize; if (ia->ia_nio < 1) return (0); if (ia->ia_niomem < 1) return (0); if (ISA_DIRECT_CONFIG(ia)) return (0); /* Disallow wildcarded i/o address. */ if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) return (0); if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM) return (0); if (bus_space_map(iot, ia->ia_io[0].ir_addr, TCIC_IOSIZE, 0, &ioh)) return (0); if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ) msize = TCIC_MEMSIZE; else msize = ia->ia_iomem[0].ir_size; if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, msize, 0, &memh)) { bus_space_unmap(iot, ioh, TCIC_IOSIZE); return (0); } DPRINTF(("tcic probing 0x%03x\n", ia->ia_iomem[0].ir_addr)); found = 0; /* * First, check for the reserved bits to be zero. */ if (tcic_check_reserved_bits(iot, ioh)) { DPRINTF(("tcic: reserved bits checked OK\n")); /* Second, check whether the we know how to handle the chip. */ if ((val = tcic_chipid(iot, ioh))) { DPRINTF(("tcic id: 0x%02x\n", val)); if (tcic_chipid_known(val)) found++; } } else { DPRINTF(("tcic: reserved bits didn't check OK\n")); } bus_space_unmap(iot, ioh, TCIC_IOSIZE); bus_space_unmap(ia->ia_memt, memh, msize); if (!found) return (0); ia->ia_nio = 1; ia->ia_io[0].ir_size = TCIC_IOSIZE; ia->ia_niomem = 1; ia->ia_iomem[0].ir_size = msize; /* IRQ is special. */ ia->ia_ndrq = 0; return (1); } void tcic_isa_attach(device_t parent, device_t self, void *aux) { struct tcic_softc *sc = (void *) self; struct isa_attach_args *ia = aux; isa_chipset_tag_t ic = ia->ia_ic; bus_space_tag_t iot = ia->ia_iot; bus_space_tag_t memt = ia->ia_memt; bus_space_handle_t ioh; bus_space_handle_t memh; /* Map i/o space. */ if (bus_space_map(iot, ia->ia_io[0].ir_addr, TCIC_IOSIZE, 0, &ioh)) { printf(": can't map i/o space\n"); return; } /* Map mem space. */ if (bus_space_map(memt, ia->ia_iomem[0].ir_addr, ia->ia_iomem[0].ir_size, 0, &memh)) { printf(": can't map mem space\n"); return; } sc->membase = ia->ia_iomem[0].ir_addr; sc->subregionmask = (1 << (ia->ia_iomem[0].ir_size / TCIC_MEM_PAGESIZE)) - 1; sc->memsize2 = tcic_log2((u_int)ia->ia_iomem[0].ir_size); sc->intr_est = ic; sc->pct = (pcmcia_chipset_tag_t) & tcic_isa_functions; sc->iot = iot; sc->ioh = ioh; sc->memt = memt; sc->memh = memh; /* * determine chip type and initialise some chip type dependend * parameters in softc. */ sc->chipid = tcic_chipid(iot, ioh); sc->validirqs = tcic_validirqs(sc->chipid); /* * allocate an irq. interrupts are relatively * scarce but for TCIC controllers very infrequent. */ if (ia->ia_nirq < 1) sc->irq = ISA_UNKNOWN_IRQ; else sc->irq = ia->ia_irq[0].ir_irq; if (sc->irq == ISA_UNKNOWN_IRQ) { if (isa_intr_alloc(ic, sc->validirqs & (tcic_isa_intr_alloc_mask & 0xff00), IST_EDGE, &sc->irq)) { aprint_normal("\n"); aprint_error_dev(&sc->dev, "can't allocate interrupt\n"); return; } printf(": using irq %d", sc->irq); } printf("\n"); tcic_attach(sc); /* * XXX mycroft recommends I/O space range 0x400-0xfff. */ /* * XXX some hardware doesn't seem to grok addresses in 0x400 range-- * apparently missing a bit or more of address lines. (e.g. * CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI * TravelMate 5000--not clear which is at fault) * * Add a kludge to detect 10 bit wide buses and deal with them, * and also a config file option to override the probe. */ #if 0 /* * This is what we'd like to use, but... */ sc->iobase = 0x400; sc->iosize = 0xbff; #else /* * ...the above bus width probe doesn't always work. * So, experimentation has shown the following range * to not lose on systems that 0x300-0x3ff loses on * (e.g. the NEC Versa 6030X). */ sc->iobase = 0x330; sc->iosize = 0x0cf; #endif DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx)\n", device_xname(&sc->dev), (long) sc->iobase, (long) sc->iobase + sc->iosize)); if (tcic_isa_alloc_iobase && tcic_isa_alloc_iosize) { sc->iobase = tcic_isa_alloc_iobase; sc->iosize = tcic_isa_alloc_iosize; DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx " "(config override)\n", device_xname(&sc->dev), (long) sc->iobase, (long) sc->iobase + sc->iosize)); } sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY, tcic_intr, sc); if (sc->ih == NULL) { printf("%s: can't establish interrupt\n", device_xname(&sc->dev)); return; } tcic_attach_sockets(sc); } void * tcic_isa_chip_intr_establish(pcmcia_chipset_handle_t pch, struct pcmcia_function *pf, int ipl, int (*fct)(void *), void *arg) { struct tcic_handle *h = (struct tcic_handle *) pch; int irq, ist; void *ih; DPRINTF(("%s: tcic_isa_chip_intr_establish\n", device_xname(&h->sc->dev))); /* XXX should we convert level to pulse? -chb */ if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL) ist = IST_LEVEL; else if (pf->cfe->flags & PCMCIA_CFE_IRQPULSE) ist = IST_PULSE; else ist = IST_LEVEL; if (isa_intr_alloc(h->sc->intr_est, h->sc->validirqs & tcic_isa_intr_alloc_mask, ist, &irq)) return (NULL); if ((ih = isa_intr_establish(h->sc->intr_est, irq, ist, ipl, fct, arg)) == NULL) return (NULL); DPRINTF(("%s: intr estrablished\n", device_xname(&h->sc->dev))); h->ih_irq = irq; printf("%s: card irq %d\n", device_xname(h->pcmcia), irq); return (ih); } void tcic_isa_chip_intr_disestablish(pcmcia_chipset_handle_t pch, void *ih) { struct tcic_handle *h = (struct tcic_handle *) pch; int val, reg; DPRINTF(("%s: tcic_isa_chip_intr_disestablish\n", device_xname(&h->sc->dev))); h->ih_irq = 0; reg = TCIC_IR_SCF1_N(h->sock); val = tcic_read_ind_2(h, reg); val &= ~TCIC_SCF1_IRQ_MASK; tcic_write_ind_2(h, reg, val); isa_intr_disestablish(h->sc->intr_est, ih); }