/* $NetBSD: sa1111.c,v 1.11 2003/08/08 12:29:23 bsh Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by IWAMOTO Toshihiro. * * 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. */ /* * TODO: * - introduce bus abstraction to support SA1101 */ #include __KERNEL_RCSID(0, "$NetBSD: sa1111.c,v 1.11 2003/08/08 12:29:23 bsh Exp $"); #include #include #include #include #include #include #include #include #include #ifdef hpcarm #include #include #endif #include #include #include #include #include #include "locators.h" static int sa1111_print(void *, const char *); static void sacc_intr_calculatemasks(struct sacc_softc *); static void sacc_intr_setpolarity(sacc_chipset_tag_t *, int , int); int sacc_intr(void *); #if !defined(__HAVE_GENERIC_SOFT_INTERRUPTS) void *softintr_establish(int, int (*)(void *), void *); void softintr_schedule(void *); #endif #ifdef INTR_DEBUG #define DPRINTF(arg) printf arg #else #define DPRINTF(arg) #endif int sacc_probe(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct sa11x0_attach_args *sa = aux; bus_space_handle_t ioh; u_int32_t skid; if (bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &ioh)) return (0); skid = bus_space_read_4(sa->sa_iot, ioh, SACCSBI_SKID); bus_space_unmap(sa->sa_iot, ioh, sa->sa_size); if ((skid & 0xffffff00) != 0x690cc200) return (0); return (1); } int sa1111_search(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct sa1111_attach_args aa; aa.sa_addr = cf->cf_loc[SACCCF_ADDR]; aa.sa_size = cf->cf_loc[SACCCF_SIZE]; aa.sa_intr = cf->cf_loc[SACCCF_INTR]; #if 0 aa.sa_membase = cf->cf_loc[SACCCF_MEMBASE]; aa.sa_memsize = cf->cf_loc[SACCCF_MEMSIZE]; #endif if (config_match(parent, cf, &aa) > 0) config_attach(parent, cf, &aa, sa1111_print); return 0; } static int sa1111_print(aux, name) void *aux; const char *name; { return (UNCONF); } void * sacc_intr_establish(ic, irq, type, level, ih_fun, ih_arg) sacc_chipset_tag_t *ic; int irq, type, level; int (*ih_fun)(void *); void *ih_arg; { int s; struct sacc_softc *sc = (struct sacc_softc *)ic; struct sacc_intrhand **p, *ih; /* no point in sleeping unless someone can free memory. */ ih = malloc(sizeof *ih, M_DEVBUF, cold ? M_NOWAIT : M_WAITOK); if (ih == NULL) panic("sacc_intr_establish: can't malloc handler info"); if (irq < 0 || irq > SACCIC_LEN || ! (type == IST_EDGE_RAISE || type == IST_EDGE_FALL)) panic("sacc_intr_establish: bogus irq or type"); if (sc->sc_intrhand[irq] == NULL) { sacc_intr_setpolarity(ic, irq, type); sc->sc_intrtype[irq] = type; } else if (sc->sc_intrtype[irq] != type) /* XXX we should be able to share raising and * falling edge intrs */ panic("sacc_intr_establish: type must be unique"); /* install intr handler */ #if defined(__GENERIC_SOFT_INTERRUPTS_ALL_LEVELS) || \ !defined(__HAVE_GENERIC_SOFT_INTERRUPTS) ih->ih_soft = softintr_establish(level, (void (*)(void *)) ih_fun, ih_arg); #else /* map interrupt level to appropriate softinterrupt level */ if (level >= IPL_SOFTSERIAL) level = IPL_SOFTSERIAL; else if(level >= IPL_SOFTNET) level = IPL_SOFTNET; ih->ih_soft = softintr_establish(level, (void (*)(void *)) ih_fun, ih_arg); #endif ih->ih_irq = irq; ih->ih_next = NULL; s = splhigh(); for(p = &sc->sc_intrhand[irq]; *p; p = &(*p)->ih_next) ; *p = ih; sacc_intr_calculatemasks(sc); splx(s); return(ih); } void sacc_intr_disestablish(ic, arg) sacc_chipset_tag_t *ic; void *arg; { int irq, s; struct sacc_softc *sc = (struct sacc_softc *)ic; struct sacc_intrhand *ih, **p; ih = (struct sacc_intrhand *)arg; irq = ih->ih_irq; #ifdef DIAGNOSTIC if (irq < 0 || irq > SACCIC_LEN) panic("sacc_intr_disestablish: bogus irq"); #endif s = splhigh(); for(p = &sc->sc_intrhand[irq];; p = &(*p)->ih_next) { if (*p == NULL) panic("sacc_intr_disestablish: handler not registered"); if (*p == ih) break; } *p = (*p)->ih_next; sacc_intr_calculatemasks(sc); splx(s); free(ih, M_DEVBUF); } void sacc_intr_setpolarity(ic, irq, type) sacc_chipset_tag_t *ic; int irq; int type; { struct sacc_softc *sc = (struct sacc_softc *)ic; int s; u_int32_t pol, mask; int addr; if (irq >= 32) { addr = SACCIC_INTPOL1; irq -= 32; } else addr = SACCIC_INTPOL0; mask = (1 << irq); s = splhigh(); pol = bus_space_read_4(sc->sc_iot, sc->sc_ioh, addr); if (type == IST_EDGE_RAISE) pol &= ~mask; else pol |= mask; bus_space_write_4(sc->sc_iot, sc->sc_ioh, addr, pol); splx(s); } void sacc_intr_calculatemasks(sc) struct sacc_softc *sc; { int irq; sc->sc_imask.lo = 0; sc->sc_imask.hi = 0; for(irq = 0; irq < 32; irq++) if (sc->sc_intrhand[irq]) sc->sc_imask.lo |= (1 << irq); for(irq = 0; irq < SACCIC_LEN - 32; irq++) if (sc->sc_intrhand[irq + 32]) sc->sc_imask.hi |= (1 << irq); /* XXX this should not be done here */ bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCIC_INTEN0, sc->sc_imask.lo); bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACCIC_INTEN1, sc->sc_imask.hi); DPRINTF(("sacc_intr_calculatemasks: %x %x\n", sc->sc_imask.lo, sc->sc_imask.hi)); }