/* $NetBSD: cac_pci.c,v 1.3 2000/03/23 11:33:35 ad Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andy Doran. * * 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. */ /* * PCI front-end for cac(4) driver. */ #include __KERNEL_RCSID(0, "$NetBSD: cac_pci.c,v 1.3 2000/03/23 11:33:35 ad Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #define PCI_CBIO 0x10 /* Configuration base I/O address */ #define PCI_CBMA 0x14 /* Configuration base memory address */ static int cac_pci_match __P((struct device *, struct cfdata *, void *)); static void cac_pci_attach __P((struct device *, struct device *, void *)); static void cac_pci_l0_submit __P((struct cac_softc *, paddr_t)); static paddr_t cac_pci_l0_completed __P((struct cac_softc *)); static int cac_pci_l0_intr_pending __P((struct cac_softc *)); static void cac_pci_l0_intr_enable __P((struct cac_softc *, int)); static int cac_pci_l0_fifo_full __P((struct cac_softc *)); static void cac_pci_l1_submit __P((struct cac_softc *, paddr_t)); static paddr_t cac_pci_l1_completed __P((struct cac_softc *)); static int cac_pci_l1_intr_pending __P((struct cac_softc *)); static void cac_pci_l1_intr_enable __P((struct cac_softc *, int)); static int cac_pci_l1_fifo_full __P((struct cac_softc *)); struct cfattach cac_pci_ca = { sizeof(struct cac_softc), cac_pci_match, cac_pci_attach }; static struct cac_linkage cac_pci_l0 = { cac_pci_l0_submit, cac_pci_l0_completed, cac_pci_l0_intr_pending, cac_pci_l0_intr_enable, cac_pci_l0_fifo_full }; static struct cac_linkage cac_pci_l1 = { cac_pci_l1_submit, cac_pci_l1_completed, cac_pci_l1_intr_pending, cac_pci_l1_intr_enable, cac_pci_l1_fifo_full }; /* This block of code inspired by Compaq's Linux driver. */ struct cac_type { int ct_subsysid; /* PCI subsystem ID */ int ct_mmreg; /* Memory mapped registers */ struct cac_linkage *ct_linkage; /* Command interface */ char *ct_typestr; /* Textual description */ } static cac_type[] = { #ifdef notdef { 0x0040110e, 0, &cac_pci_lX, "IDA" }, { 0x0140110e, 0, &cac_pci_lX, "IDA 2" }, { 0x1040110e, 0, &cac_pci_lX, "IAES" }, { 0x2040110e, 0, &cac_pci_lX, "SMART" }, #endif { 0x3040110e, 0, &cac_pci_l0, "SMART-2/E" }, { 0x40300e11, 1, &cac_pci_l0, "SMART-2/P" }, { 0x40310e11, 1, &cac_pci_l0, "SMART-2SL" }, { 0x40320e11, 1, &cac_pci_l0, "Smart Array 3200" }, { 0x40330e11, 1, &cac_pci_l0, "Smart Array 3100ES" }, { 0x40340e11, 1, &cac_pci_l0, "Smart Array 221" }, { 0x40400e11, 1, &cac_pci_l1, "Integrated Array" }, { 0x40500e11, 1, &cac_pci_l1, "Smart Array 4200" }, { 0x40510e11, 1, &cac_pci_l1, "Smart Array 4200ES" }, { -1, 1, &cac_pci_l0, "array controller (unknown type)" }, }; static int cac_pci_match(parent, match, aux) struct device *parent; struct cfdata *match; void *aux; { struct pci_attach_args *pa; pa = (struct pci_attach_args *)aux; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_COMPAQ && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPAQ_SMART2P) return (1); if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_CPQ42XX) return (1); return (0); } static void cac_pci_attach(parent, self, aux) struct device *parent; struct device *self; void *aux; { struct pci_attach_args *pa; struct cac_type *ct; struct cac_softc *sc; pci_chipset_tag_t pc; pci_intr_handle_t ih; const char *intrstr; pcireg_t csr, subsysid; int mmreg; sc = (struct cac_softc *)self; pa = (struct pci_attach_args *)aux; pc = pa->pa_pc; mmreg = 0; printf(": "); subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); for (ct = cac_type; ct->ct_subsysid != -1; ct++) if (subsysid == ct->ct_subsysid) break; if ((mmreg = ct->ct_mmreg) != 0) if (pci_mapreg_map(pa, PCI_CBMA, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) mmreg = 0; if (mmreg == 0) if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { printf("can't map i/o space\n"); return; } sc->sc_dmat = pa->pa_dmat; /* Enable the device. */ csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, csr | PCI_COMMAND_MASTER_ENABLE); /* Map and establish the interrupt. */ if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &ih)) { printf("can't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, cac_intr, sc); if (sc->sc_ih == NULL) { printf("can't establish interrupt"); if (intrstr != NULL) printf(" at %s", intrstr); printf("\n"); return; } /* Now attach to the bus-independent code */ sc->sc_typestr = ct->ct_typestr; sc->sc_cl = ct->ct_linkage; cac_init(sc, intrstr); } static void cac_pci_l0_submit(sc, addr) struct cac_softc *sc; paddr_t addr; { cac_outl(sc, CAC_REG_CMD_FIFO, addr); } static paddr_t cac_pci_l0_completed(sc) struct cac_softc *sc; { return (cac_inl(sc, CAC_REG_DONE_FIFO)); } static int cac_pci_l0_intr_pending(sc) struct cac_softc *sc; { return (cac_inl(sc, CAC_REG_INT_PENDING)); } static void cac_pci_l0_intr_enable(sc, state) struct cac_softc *sc; int state; { cac_outl(sc, CAC_REG_INT_MASK, state); } static int cac_pci_l0_fifo_full(sc) struct cac_softc *sc; { return (cac_inl(sc, CAC_REG_CMD_FIFO) == 0); } static void cac_pci_l1_submit(sc, addr) struct cac_softc *sc; paddr_t addr; { cac_outl(sc, CAC_42REG_CMD_FIFO, addr); } static paddr_t cac_pci_l1_completed(sc) struct cac_softc *sc; { int32_t val; if ((val = cac_inl(sc, CAC_42REG_DONE_FIFO)) == -1) return (0); cac_outl(sc, CAC_42REG_DONE_FIFO, 0); return ((paddr_t)val); } static int cac_pci_l1_intr_pending(sc) struct cac_softc *sc; { return (cac_inl(sc, CAC_42REG_INT_PENDING) & cac_inl(sc, CAC_42REG_STATUS)); } static void cac_pci_l1_intr_enable(sc, state) struct cac_softc *sc; int state; { cac_outl(sc, CAC_REG_INT_MASK, (state ? 0 : 8)); /* XXX */ } static int cac_pci_l1_fifo_full(sc) struct cac_softc *sc; { return (~cac_inl(sc, CAC_42REG_CMD_FIFO)); }