/* $Id: pcmcia_isa.c,v 1.4 1996/10/16 12:36:02 deraadt Exp $ */ /* * Copyright (c) 1995,1996 John T. Kohl. All rights reserved. * Copyright (c) 1994 Stefan Grefen. 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 Charles Hannum. * 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. * */ /* TODO add modload support and loadable lists of devices */ /* How to do cards with more than one function (modem/ethernet ..) */ #include #include #include #include #include #include #include #include #include #include #include #include /* XXX USES ISA HOLE DIRECTLY */ #ifdef IBM_WD #define PCMCIA_ISA_DEBUG #endif #ifdef PCMCIA_ISA_DEBUG #define STATIC #else #define STATIC static #endif STATIC int pcmcia_isa_init __P((struct device *, struct cfdata *, void *, struct pcmcia_adapter *, int)); STATIC int pcmcia_isa_search __P((struct device *, void *, cfprint_t)); STATIC int pcmcia_isa_probe __P((struct device *, void *, void *, struct pcmcia_link *)); STATIC int pcmcia_isa_config __P((struct pcmcia_link *, struct device *, struct pcmcia_conf *, struct cfdata *)); STATIC int pcmcia_isa_unconfig __P((struct pcmcia_link *)); struct pcmciabus_link pcmcia_isa_link = { pcmcia_isa_config, pcmcia_isa_unconfig, pcmcia_isa_probe, pcmcia_isa_search, pcmcia_isa_init }; /* copy out the addr and length from machine specific attach struct */ STATIC int pcmcia_isa_init(parent, cf, aux, pca, flag) struct device *parent; struct cfdata *cf; void *aux; struct pcmcia_adapter *pca; int flag; { struct pcmciabus_attach_args *pa = aux; bus_mem_handle_t memh; #ifdef PCMCIA_ISA_DEBUG if (parent != NULL) printf("PARENT %s\n", parent->dv_xname); #endif if (flag == 0) { /* match */ if (bus_mem_map(pa->pba_bc, pa->pba_maddr, pa->pba_msize, 0, &memh)) return 0; pca->scratch_memsiz = pa->pba_msize; pca->scratch_memh = memh; pca->pa_bc = pa->pba_bc; #ifdef PCMCIA_ISA_DEBUG printf("pbaaddr %p maddr %x msize %x\n", pa, pa->pba_maddr, pa->pba_msize); printf("PCA %p mem %p size %d chip %x memh %x\n", pca, pca->scratch_mem, pca->scratch_memsiz, pca->pa_bc, pca->scratch_memh); #endif } return 1; } /* probe and attach a device, the has to be configured already */ STATIC int pcmcia_isa_probe(parent, match, aux, pc_link) struct device *parent; void *match; void *aux; struct pcmcia_link *pc_link; { struct device *dev = match; struct cfdata *cf = aux; struct isa_attach_args ia; struct pcmciadevs *pcs = pc_link->device; int (*probe) () = (pcs != NULL) ? pcs->dev->pcmcia_probe : NULL; if (cf->cf_loc[6] != -1 && cf->cf_loc[6] != pc_link->slot) { #ifdef PCMCIA_ISA_DEBUG printf("- isa probe slot mismatch: cf %d <> link %d\n", cf->cf_loc[6], pc_link->slot); #endif return 0; } #if 0 if (pcs == NULL || pcs->dev->pcmcia_probe == NULL) { #ifdef PCMCIA_ISA_DEBUG printf("- isa probe null proberoutine %p\n", pcs); #endif return 0; } #endif ia.ia_iobase = cf->cf_loc[0]; ia.ia_iosize = cf->cf_loc[1] == -1 ? 0x666 : cf->cf_loc[1]; ia.ia_maddr = cf->cf_loc[2]; ia.ia_msize = cf->cf_loc[3]; ia.ia_irq = cf->cf_loc[4] == 2 ? 9 : cf->cf_loc[4] ; ia.ia_drq = cf->cf_loc[5]; ia.ia_bc = pc_link->bus->sc_bc; if (probe == NULL) probe = cf->cf_attach->ca_match; #ifdef PCMCIA_ISA_DEBUG printf("pcmcia probe %x %x %p\n", ia.ia_iobase, ia.ia_irq, probe); printf("parentname = %s\n", parent->dv_xname); printf("devname = %s\n", dev->dv_xname); printf("driver name = %s\n", cf->cf_driver->cd_name); #endif if ((*probe) (parent, dev, &ia, pc_link) > 0) { extern isaprint(); config_attach(parent, dev, &ia, isaprint); #ifdef PCMCIA_ISA_DEBUG printf("biomask %x netmask %x ttymask %x\n", (u_short) imask[IPL_BIO], (u_short) imask[IPL_NET], (u_short) imask[IPL_TTY]); #endif return 1; } else if (parent->dv_cfdata->cf_driver->cd_indirect == 0) free(dev, M_DEVBUF); return 0; } /* * Modify a pcmcia_conf struct to match the config entry. Pc_cf was filled * with config data from the card and may be modified before and after the * call to pcmcia_isa_config. Unless the FIXED_WIN flag is set we assume * contiguous windows and shift according to the offset for the first not * fixed window */ STATIC int pcmcia_isa_config(pc_link, self, pc_cf, cf) struct pcmcia_link *pc_link; struct device *self; struct pcmcia_conf *pc_cf; struct cfdata *cf; { struct isa_attach_args ia; struct pcmciadevs *pcs = pc_link->device; ia.ia_iobase = cf->cf_loc[0]; ia.ia_iosize = 0x666; ia.ia_maddr = cf->cf_loc[2]; ia.ia_msize = cf->cf_loc[3]; ia.ia_irq = cf->cf_loc[4]; ia.ia_drq = cf->cf_loc[5]; #ifdef PCMCIA_ISA_DEBUG printf("pcmcia_isa_config iobase=%x maddr=%x msize=%x irq=%d drq=%d slot=%d\n", ia.ia_iobase, ISA_HOLE_VADDR(ia.ia_maddr), ia.ia_msize, ia.ia_irq, ia.ia_drq, cf->cf_loc[6]); #endif if (pcs && strcmp(pcs->devname, self->dv_cfdata->cf_driver->cd_name)) { #ifdef PCMCIA_ISA_DEBUG printf("- wrong driver %s vs %s\n", pcs->devname, self->dv_cfdata->cf_driver->cd_name); #endif return ENODEV; } if (ia.ia_irq != IRQUNK) { int irq = 1 << ia.ia_irq; /* * This is tricky irq 9 must match irq 2 in a device mask and * configured irq 9 must match irq 2 */ #ifdef PCMCIA_ISA_DEBUG printf("pcmcia_isa_config irq=%x num=%x mask=%x and=%x\n", irq, 1 << pc_cf->irq_num, pc_cf->irq_mask, irq & pc_cf->irq_mask); #endif if (irq != (1 << pc_cf->irq_num) && !(irq == (1 << 9) && pc_cf->irq_num == 2)) { if (irq == (1 << 9) || irq == (1 << 2)) irq = (1 << 9) | (1 << 2); if ((irq & pc_cf->irq_mask) == 0) { printf("%s: slot %d requested irq %d, avail_mask %x\n", self->dv_parent->dv_xname, pc_link->slot, ia.ia_irq, pc_cf->irq_mask); return ENODEV; } /* 2 is 9 is 2 ... */ irq&=~(1 << 2); cf->cf_loc[4] = pc_cf->irq_num = ffs(irq) - 1; #ifdef PCMCIA_ISA_DEBUG printf("pcmcia_isa_config modify num=%x\n", pc_cf->irq_num); #endif } } if (ia.ia_iobase != IOBASEUNK) { int i; int offs = 0; if (pc_cf->iowin == 0) return 0; for (i = 0; i < pc_cf->iowin; i++) { if (pc_cf->io[i].flags & PCMCIA_FIXED_WIN) continue; if (offs == 0) { if (pc_cf->io[i].start != ia.ia_iobase) { offs = ia.ia_iobase - pc_cf->io[i].start; } else break; } pc_cf->io[i].start += offs; } } else pc_cf->iowin = 0; if (ia.ia_maddr != MADDRUNK && ia.ia_msize) { int i; unsigned long offs = 0; int mlen = ia.ia_msize; int maddr = (int) ISA_HOLE_VADDR(ia.ia_maddr); if (pc_cf->memwin == 0) return ENODEV; #ifdef PCMCIA_ISA_DEBUG printf("Doing ia=%x ma=%x ms=%d\n", ia.ia_maddr, maddr, ia.ia_msize); #endif for (i = 0; i < pc_cf->memwin && mlen > 0; i++) { #ifdef PCMCIA_ISA_DEBUG printf("Doing i=%d st=%x len=%d, flags=%x offs=%d mlen=%d\n", i, pc_cf->mem[i].start, pc_cf->mem[i].len, pc_cf->mem[i].flags, offs, mlen); #endif if (pc_cf->mem[i].flags & PCMCIA_FIXED_WIN) continue; if (offs == 0) { if (pc_cf->mem[i].start != maddr) { offs = maddr - pc_cf->mem[i].start; } else break; } mlen -= pc_cf->mem[i].len; if (mlen < 0) pc_cf->mem[i].len += mlen; pc_cf->mem[i].start += offs; } } else pc_cf->memwin = 0; return 0; } STATIC int pcmcia_isa_unconfig(pc_link) struct pcmcia_link *pc_link; { #if 0 if (pc_link && pc_link->intr > 0) { /* THIS IS A GUESS ... TODO check all possible drivers */ struct softc { struct device sc_dev; void *sc_ih; bus_chipset_tag_t sc_bc; } *sc = pc_link->devp; if (sc) isa_intr_disestablish(sc->sc_bc, sc->sc_ih); } #endif return 0; } /* Searches for for configured devices on the pcmciabus */ STATIC int pcmcia_isa_search(parent, aux, print) struct device *parent; void *aux; cfprint_t print; { static char *msgs[3] = {"", " not configured\n", " unsupported\n"}; #ifdef PCMCIA_ISA_DEBUG printf("pcmcia_isa_search\n"); #endif if (config_search(pcmcia_configure, parent, aux) != NULL) return 1; if (print) { int i; i = (*print) (aux, parent->dv_xname); printf(msgs[i]); } return 0; }