/* $NetBSD: pcic_shbsubr.c,v 1.3 2000/06/29 07:44:02 mrg Exp $ */ #define SHPCICSUBRDEBUG /* * Copyright (c) 1998 Bill Sommerfeld. 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 #include #include #include #include #include #include #include #include #include #if 0 #include #include #endif #include #include #include #include #include #if 0 #include #endif /***************************************************************************** * Configurable parameters. *****************************************************************************/ #include "opt_pcic_shb_alloc_iobase.h" #include "opt_pcic_shb_alloc_iosize.h" #include "opt_pcic_shb_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 PCIC_SHB_ALLOC_IOBASE #define PCIC_SHB_ALLOC_IOBASE 0 #endif #ifndef PCIC_SHB_ALLOC_IOSIZE #define PCIC_SHB_ALLOC_IOSIZE 0 #endif int pcic_shb_alloc_iobase = PCIC_SHB_ALLOC_IOBASE; int pcic_shb_alloc_iosize = PCIC_SHB_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 PCIC 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. */ #ifndef PCIC_SHB_INTR_ALLOC_MASK #define PCIC_SHB_INTR_ALLOC_MASK 0xfbff #endif extern int pcic_shb_intr_alloc_mask; /***************************************************************************** * End of configurable parameters. *****************************************************************************/ #ifdef SHPCICISADEBUG int shpcicsubr_debug = 0 /* XXX */ ; #define DPRINTF(arg) if (shpcicsubr_debug) printf arg; #else #define DPRINTF(arg) #endif void pcic_shb_bus_width_probe (sc, iot, ioh, base, length) struct shpcic_softc *sc; bus_space_tag_t iot; bus_space_handle_t ioh; bus_addr_t base; u_int32_t length; { #if 0 bus_space_handle_t ioh_high; int i, iobuswidth, tmp1, tmp2; /* * figure out how wide the isa bus is. Do this by checking if the * pcic controller is mirrored 0x400 above where we expect it to be. */ iobuswidth = 12; /* Map i/o space. */ if (bus_space_map(iot, base + 0x400, length, 0, &ioh_high)) { printf("%s: can't map high i/o space\n", sc->dev.dv_xname); return; } for (i = 0; i < SHPCIC_NSLOTS; i++) { if (sc->handle[i].flags & SHPCIC_FLAG_SOCKETP) { /* * read the ident flags from the normal space and * from the mirror, and compare them */ bus_space_write_1(iot, ioh, SHPCIC_REG_INDEX, sc->handle[i].sock + SHPCIC_IDENT); tmp1 = bus_space_read_1(iot, ioh, SHPCIC_REG_DATA); bus_space_write_1(iot, ioh_high, SHPCIC_REG_INDEX, sc->handle[i].sock + SHPCIC_IDENT); tmp2 = bus_space_read_1(iot, ioh_high, SHPCIC_REG_DATA); if (tmp1 == tmp2) iobuswidth = 10; } } bus_space_free(iot, ioh_high, length); /* * XXX mycroft recommends I/O space range 0x400-0xfff . I should put * this in a header somewhere */ /* * 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 (iobuswidth == 10) { sc->iobase = 0x300; sc->iosize = 0x0ff; } else { #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 (probed)\n", sc->dev.dv_xname, (long) sc->iobase, (long) sc->iobase + sc->iosize)); if (pcic_shb_alloc_iobase && pcic_shb_alloc_iosize) { sc->iobase = pcic_shb_alloc_iobase; sc->iosize = pcic_shb_alloc_iosize; DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx " "(config override)\n", sc->dev.dv_xname, (long) sc->iobase, (long) sc->iobase + sc->iosize)); } #endif } void * pcic_shb_chip_intr_establish(pch, pf, ipl, fct, arg) pcmcia_chipset_handle_t pch; struct pcmcia_function *pf; int ipl; int (*fct) __P((void *)); void *arg; { struct shpcic_handle *h = (struct shpcic_handle *) pch; int irq, ist; void *ih; 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 0 if (sh_intr_alloc( SHPCIC_INTR_IRQ_VALIDMASK & pcic_shb_intr_alloc_mask, ist, &irq)) return (NULL); #else if (pf->pf_pcmh.addr == SHPCIC_SLOT1_ADDR) irq = SHPCIC_IRQ1; else if (pf->pf_pcmh.addr == SHPCIC_SLOT2_ADDR) irq = SHPCIC_IRQ2; else panic("illegal pcmcia slot address"); #endif if ((ih = shb_intr_establish(irq, ist, ipl, fct, arg)) == NULL) return (NULL); #if 0 reg = shpcic_read(h, SHPCIC_INTR); reg &= ~SHPCIC_INTR_IRQ_MASK; reg |= irq; shpcic_write(h, SHPCIC_INTR, reg); #endif h->ih_irq = irq; printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq); return (ih); } void pcic_shb_chip_intr_disestablish(pch, ih) pcmcia_chipset_handle_t pch; void *ih; { struct shpcic_handle *h = (struct shpcic_handle *) pch; h->ih_irq = 0; shb_intr_disestablish(NULL, ih); }