Annotation of sys/dev/pci/cy_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: cy_pci.c,v 1.13 2004/06/13 17:30:27 pvalchev Exp $ */
! 2: /*
! 3: * Copyright (c) 1996 Timo Rossi.
! 4: * All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: * 3. Neither the name of the author nor the names of contributors
! 15: * may be used to endorse or promote products derived from this software
! 16: * without specific prior written permission.
! 17: *
! 18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 21: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 22: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 28: * SUCH DAMAGE.
! 29: */
! 30:
! 31: /*
! 32: * cy_pci.c
! 33: *
! 34: * Driver for Cyclades Cyclom-8/16/32 multiport serial cards
! 35: * (currently not tested with Cyclom-32 cards)
! 36: *
! 37: * Timo Rossi, 1996
! 38: */
! 39:
! 40: #include <sys/param.h>
! 41: #include <sys/systm.h>
! 42: #include <sys/device.h>
! 43:
! 44: #include <machine/bus.h>
! 45:
! 46: #include <dev/pci/pcivar.h>
! 47: #include <dev/pci/pcireg.h>
! 48: #include <dev/pci/pcidevs.h>
! 49:
! 50: #include <dev/ic/cd1400reg.h>
! 51: #include <dev/ic/cyreg.h>
! 52:
! 53: int cy_pci_match(struct device *, void *, void *);
! 54: void cy_pci_attach(struct device *, struct device *, void *);
! 55:
! 56: struct cy_pci_softc {
! 57: struct cy_softc sc_cy; /* real softc */
! 58:
! 59: bus_space_tag_t sc_iot; /* PLX i/o tag */
! 60: bus_space_handle_t sc_ioh; /* PLX i/o handle */
! 61: };
! 62:
! 63: struct cfattach cy_pci_ca = {
! 64: sizeof(struct cy_pci_softc), cy_pci_match, cy_pci_attach
! 65: };
! 66:
! 67: #define CY_PLX_9050_ICS_IENABLE 0x040
! 68: #define CY_PLX_9050_ICS_LOCAL_IENABLE 0x001
! 69: #define CY_PLX_9050_ICS_LOCAL_IPOLARITY 0x002
! 70: #define CY_PLX_9060_ICS_IENABLE 0x100
! 71: #define CY_PLX_9060_ICS_LOCAL_IENABLE 0x800
! 72:
! 73: const struct pci_matchid cy_pci_devices[] = {
! 74: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOMY_1 },
! 75: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOMY_2 },
! 76: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM4Y_1 },
! 77: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM4Y_2 },
! 78: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM8Y_1 },
! 79: { PCI_VENDOR_CYCLADES, PCI_PRODUCT_CYCLADES_CYCLOM8Y_2 },
! 80: };
! 81:
! 82: int
! 83: cy_pci_match(parent, match, aux)
! 84: struct device *parent;
! 85: void *match, *aux;
! 86: {
! 87: return (pci_matchbyid((struct pci_attach_args *)aux, cy_pci_devices,
! 88: sizeof(cy_pci_devices)/sizeof(cy_pci_devices[0])));
! 89: }
! 90:
! 91: void
! 92: cy_pci_attach(parent, self, aux)
! 93: struct device *parent, *self;
! 94: void *aux;
! 95: {
! 96: struct cy_pci_softc *psc = (struct cy_pci_softc *)self;
! 97: struct cy_softc *sc = (struct cy_softc *)self;
! 98: struct pci_attach_args *pa = aux;
! 99: const char *intrstr = NULL;
! 100: pci_intr_handle_t ih;
! 101: pcireg_t memtype;
! 102: int plx_ver;
! 103:
! 104: sc->sc_bustype = CY_BUSTYPE_PCI;
! 105:
! 106: switch (PCI_PRODUCT(pa->pa_id)) {
! 107: case PCI_PRODUCT_CYCLADES_CYCLOMY_1:
! 108: case PCI_PRODUCT_CYCLADES_CYCLOM4Y_1:
! 109: case PCI_PRODUCT_CYCLADES_CYCLOM8Y_1:
! 110: memtype = PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT_1M;
! 111: break;
! 112: case PCI_PRODUCT_CYCLADES_CYCLOMY_2:
! 113: case PCI_PRODUCT_CYCLADES_CYCLOM4Y_2:
! 114: case PCI_PRODUCT_CYCLADES_CYCLOM8Y_2:
! 115: memtype = PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT;
! 116: break;
! 117: }
! 118:
! 119: if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_IO, 0,
! 120: &psc->sc_iot, &psc->sc_ioh, NULL, NULL, 0) != 0) {
! 121: printf(": unable to map PLX registers\n");
! 122: return;
! 123: }
! 124:
! 125: if (pci_mapreg_map(pa, 0x18, memtype, 0, &sc->sc_memt,
! 126: &sc->sc_memh, NULL, NULL, 0) != 0) {
! 127: printf(": couldn't map device registers\n");
! 128: return;
! 129: }
! 130:
! 131: if ((sc->sc_nr_cd1400s = cy_probe_common(sc->sc_memt, sc->sc_memh,
! 132: CY_BUSTYPE_PCI)) == 0) {
! 133: printf(": PCI Cyclom card with no CD1400s\n");
! 134: return;
! 135: }
! 136:
! 137: if (pci_intr_map(pa, &ih) != 0) {
! 138: printf(": couldn't map interrupt\n");
! 139: return;
! 140: }
! 141:
! 142: intrstr = pci_intr_string(pa->pa_pc, ih);
! 143: sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_TTY, cy_intr,
! 144: sc, sc->sc_dev.dv_xname);
! 145: if (sc->sc_ih == NULL) {
! 146: printf(": couldn't establish interrupt");
! 147: if (intrstr != NULL)
! 148: printf(" at %s", intrstr);
! 149: printf("\n");
! 150: return;
! 151: }
! 152: printf(": %s", intrstr);
! 153:
! 154: cy_attach(parent, self);
! 155:
! 156: /* Get PLX version */
! 157: plx_ver = bus_space_read_1(sc->sc_memt, sc->sc_memh, CY_PLX_VER) & 0x0f;
! 158:
! 159: /* Enable PCI card interrupts */
! 160: switch (plx_ver) {
! 161: case CY_PLX_9050:
! 162: bus_space_write_2(psc->sc_iot, psc->sc_ioh, CY_PCI_INTENA_9050,
! 163: CY_PLX_9050_ICS_IENABLE | CY_PLX_9050_ICS_LOCAL_IENABLE |
! 164: CY_PLX_9050_ICS_LOCAL_IPOLARITY);
! 165: break;
! 166:
! 167: case CY_PLX_9060:
! 168: case CY_PLX_9080:
! 169: default:
! 170: bus_space_write_2(psc->sc_iot, psc->sc_ioh, CY_PCI_INTENA,
! 171: bus_space_read_2(psc->sc_iot, psc->sc_ioh,
! 172: CY_PCI_INTENA) | CY_PLX_9060_ICS_IENABLE |
! 173: CY_PLX_9060_ICS_LOCAL_IENABLE);
! 174: }
! 175: }
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