Annotation of sys/arch/macppc/pci/kauaiata.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: kauaiata.c,v 1.9 2007/03/01 21:28:56 drahn Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2003 Dale Rahn
! 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: *
! 15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
! 16: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 18: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
! 19: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 20: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 21: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 23: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 24: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 25: * SUCH DAMAGE.
! 26: *
! 27: */
! 28:
! 29: /*
! 30: * Glue to to attach kauai ata to the macobio_wdc
! 31: * which it heavily resembles.
! 32: */
! 33:
! 34: #include <sys/param.h>
! 35: #include <sys/systm.h>
! 36: #include <sys/device.h>
! 37:
! 38: #include <machine/bus.h>
! 39:
! 40: #include <dev/pci/pcivar.h>
! 41: #include <dev/pci/pcireg.h>
! 42: #include <dev/pci/pcidevs.h>
! 43:
! 44: #include <dev/ofw/openfirm.h>
! 45:
! 46: #include <machine/autoconf.h>
! 47:
! 48:
! 49: struct kauaiata_softc {
! 50: struct device sc_dev;
! 51: struct ppc_bus_space sc_membus_space;
! 52: /* XXX */
! 53: };
! 54:
! 55: int kauaiatamatch(struct device *parent, void *match, void *aux);
! 56: void kauaiataattach(struct device *parent, struct device *self, void *aux);
! 57: int kauaiata_print(void *aux, const char *dev);
! 58:
! 59:
! 60: struct cfattach kauaiata_ca = {
! 61: sizeof(struct kauaiata_softc), kauaiatamatch, kauaiataattach,
! 62: };
! 63:
! 64: struct cfdriver kauaiata_cd = {
! 65: NULL, "kauaiata", DV_DULL,
! 66: };
! 67:
! 68: int
! 69: kauaiatamatch(struct device *parent, void *match, void *aux)
! 70: {
! 71: struct pci_attach_args *pa = aux;
! 72:
! 73: /*
! 74: * Match the adapter
! 75: * XXX match routine??
! 76: */
! 77: switch(PCI_VENDOR(pa->pa_id)) {
! 78: case PCI_VENDOR_APPLE:
! 79: switch (PCI_PRODUCT(pa->pa_id)) {
! 80: case PCI_PRODUCT_APPLE_UNINORTH_ATA:
! 81: case PCI_PRODUCT_APPLE_INTREPID_ATA:
! 82: case PCI_PRODUCT_APPLE_INTREPID2_ATA:
! 83: case PCI_PRODUCT_APPLE_K2_ATA:
! 84: case PCI_PRODUCT_APPLE_SHASTA_ATA:
! 85: return (1);
! 86: }
! 87: break;
! 88: }
! 89: return 0;
! 90: }
! 91:
! 92: void
! 93: kauaiataattach(struct device *parent, struct device *self, void *aux)
! 94: {
! 95: int node;
! 96: struct confargs ca;
! 97: int namelen;
! 98: u_int32_t reg[20];
! 99: char name[32];
! 100: int32_t intr[8];
! 101:
! 102: struct kauaiata_softc *sc = (struct kauaiata_softc *)self;
! 103: struct pci_attach_args *pa = aux;
! 104: pci_chipset_tag_t pc = pa->pa_pc;
! 105:
! 106: /* XXX not neccessarily the right device */
! 107: node = OF_finddevice("uata");
! 108: if (node == -1)
! 109: node = OF_finddevice("/pci@f4000000/ata-6");
! 110:
! 111: if (node == -1) {
! 112: printf("\n");
! 113: return;
! 114: }
! 115:
! 116: /*
! 117: * XXX - need to compare node and PCI id to verify this is the
! 118: * correct device.
! 119: */
! 120:
! 121: ca.ca_nreg = OF_getprop(node, "reg", reg, sizeof(reg));
! 122:
! 123: /*
! 124: * The PCI Interrupt Configuration Registers seems to be
! 125: * hardwired to 0. Get the interrupt line from OpenFirmware.
! 126: */
! 127: /* XXX */
! 128: if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE &&
! 129: PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_ATA) {
! 130: ca.ca_nintr = OF_getprop(node, "interrupts",
! 131: intr, sizeof intr);
! 132: } else {
! 133: ca.ca_nintr = 4;
! 134: intr[0] = 0x27;
! 135: }
! 136:
! 137: namelen = OF_getprop(node, "name", name, sizeof(name));
! 138: if ((namelen < 0) || (namelen >= sizeof(name))) {
! 139: printf(" bad name prop len %x\n", namelen);
! 140: return;
! 141: }
! 142:
! 143: name[namelen] = 0; /* name property may not be null terminated */
! 144:
! 145: /* config read */
! 146: sc->sc_membus_space.bus_base =
! 147: pci_conf_read(pc, pa->pa_tag, PCI_MAPREG_START);
! 148:
! 149: /* make sure device memory access is enabled */
! 150: {
! 151: bus_space_tag_t iot;
! 152: bus_space_handle_t ioh;
! 153: bus_size_t size;
! 154:
! 155: if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0,
! 156: &iot, &ioh, NULL, &size, 0)) {
! 157: printf(": mapping memory failed\n");
! 158: return;
! 159: }
! 160:
! 161: bus_space_unmap(iot, ioh, size);
! 162: }
! 163: #if 0
! 164: pci_conf_write(pc, pa->pa_tag, PCI_MAPREG_START, 0xffffffff);
! 165: size = ~(pci_conf_read(pc, pa->pa_tag, PCI_MAPREG_START));
! 166: pci_conf_write(pc, pa->pa_tag, PCI_MAPREG_START,
! 167: sc->sc_membus_space.bus_base);
! 168: #endif
! 169:
! 170: ca.ca_baseaddr = sc->sc_membus_space.bus_base;
! 171:
! 172: ca.ca_name = name;
! 173: ca.ca_iot = &sc->sc_membus_space;
! 174: ca.ca_dmat = pa->pa_dmat;
! 175:
! 176: ca.ca_reg = reg;
! 177: reg[0] = 0x2000; /* offset to wdc registers */
! 178: reg[1] = reg[9] - 0x2000; /* map size of wdc registers */
! 179: reg[2] = 0x1000; /* offset to dbdma registers */
! 180: reg[3] = 0x1000; /* map size of dbdma registers */
! 181: ca.ca_intr = intr;
! 182:
! 183: printf("\n");
! 184:
! 185: config_found(self, &ca, kauaiata_print);
! 186: }
! 187:
! 188: int
! 189: kauaiata_print(void *aux, const char *dev)
! 190: {
! 191: return QUIET;
! 192: }
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