Annotation of sys/arch/alpha/pci/pci_up1000.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pci_up1000.c,v 1.12 2007/05/02 21:50:14 martin Exp $ */
! 2: /* $NetBSD: pci_up1000.c,v 1.6 2000/12/28 22:59:07 sommerfeld Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 2000 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Jason R. Thorpe.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: #include <sys/types.h>
! 41: #include <sys/param.h>
! 42: #include <sys/time.h>
! 43: #include <sys/systm.h>
! 44: #include <sys/errno.h>
! 45: #include <sys/device.h>
! 46:
! 47: #include <uvm/uvm_extern.h>
! 48:
! 49: #include <machine/autoconf.h>
! 50: #include <machine/bus.h>
! 51: #include <machine/intr.h>
! 52:
! 53: #include <dev/isa/isavar.h>
! 54:
! 55: #include <dev/pci/pcireg.h>
! 56: #include <dev/pci/pcivar.h>
! 57: #include <dev/pci/pciidereg.h>
! 58: #include <dev/pci/pciidevar.h>
! 59:
! 60: #include <alpha/pci/irongatevar.h>
! 61:
! 62: #include <alpha/pci/pci_up1000.h>
! 63: #include <alpha/pci/siovar.h>
! 64: #include <alpha/pci/sioreg.h>
! 65:
! 66: #include "sio.h"
! 67:
! 68: int api_up1000_intr_map(void *, pcitag_t, int, int, pci_intr_handle_t *);
! 69: const char *api_up1000_intr_string(void *, pci_intr_handle_t);
! 70: int api_up1000_intr_line(void *, pci_intr_handle_t);
! 71: void *api_up1000_intr_establish(void *, pci_intr_handle_t,
! 72: int, int (*func)(void *), void *, char *);
! 73: void api_up1000_intr_disestablish(void *, void *);
! 74:
! 75: void *api_up1000_pciide_compat_intr_establish(void *, struct device *,
! 76: struct pci_attach_args *, int, int (*)(void *), void *);
! 77: void api_up1000_pciide_compat_intr_disestablish(void *, void *);
! 78:
! 79: void
! 80: pci_up1000_pickintr(struct irongate_config *icp)
! 81: {
! 82: bus_space_tag_t iot = &icp->ic_iot;
! 83: pci_chipset_tag_t pc = &icp->ic_pc;
! 84:
! 85: pc->pc_intr_v = icp;
! 86: pc->pc_intr_map = api_up1000_intr_map;
! 87: pc->pc_intr_string = api_up1000_intr_string;
! 88: pc->pc_intr_line = api_up1000_intr_line;
! 89: pc->pc_intr_establish = api_up1000_intr_establish;
! 90: pc->pc_intr_disestablish = api_up1000_intr_disestablish;
! 91:
! 92: pc->pc_pciide_compat_intr_establish =
! 93: api_up1000_pciide_compat_intr_establish;
! 94: pc->pc_pciide_compat_intr_disestablish =
! 95: api_up1000_pciide_compat_intr_disestablish;
! 96:
! 97: #if NSIO
! 98: sio_intr_setup(pc, iot);
! 99: #else
! 100: panic("pci_up1000_pickintr: no I/O interrupt handler (no sio)");
! 101: #endif
! 102: }
! 103:
! 104: int
! 105: api_up1000_intr_map(void *icv, pcitag_t bustag, int buspin, int line, pci_intr_handle_t *ihp)
! 106: {
! 107: struct irongate_config *icc = icv;
! 108: pci_chipset_tag_t pc = &icc->ic_pc;
! 109: int bus, device, function;
! 110:
! 111: if (buspin == 0) {
! 112: /* No IRQ used. */
! 113: return 1;
! 114: }
! 115: if (buspin > 4) {
! 116: printf("api_up1000_intr_map: bad interrupt pin %d\n",
! 117: buspin);
! 118: return 1;
! 119: }
! 120:
! 121: pci_decompose_tag(pc, bustag, &bus, &device, &function);
! 122:
! 123: /*
! 124: * The console places the interrupt mapping in the "line" value.
! 125: * A value of (char)-1 indicates there is no mapping.
! 126: */
! 127: if (line == 0xff) {
! 128: printf("api_up1000_intr_map: no mapping for %d/%d/%d\n",
! 129: bus, device, function);
! 130: return (1);
! 131: }
! 132:
! 133: /* XXX Check for 0? */
! 134: if (line > 15) {
! 135: #ifdef DIAGNOSTIC
! 136: printf("api_up1000_intr_map: ISA IRQ too large (%d)\n",
! 137: line);
! 138: #endif
! 139: return (1);
! 140: }
! 141: if (line == 2) {
! 142: #ifdef DIAGNOSTIC
! 143: printf("api_up1000_intr_map: changed IRQ 2 to IRQ 9\n");
! 144: #endif
! 145: line = 9;
! 146: }
! 147:
! 148: *ihp = line;
! 149: return (0);
! 150: }
! 151:
! 152: const char *
! 153: api_up1000_intr_string(void *icv, pci_intr_handle_t ih)
! 154: {
! 155: #if 0
! 156: struct irongate_config *icp = icv;
! 157: #endif
! 158:
! 159: return sio_intr_string(NULL /*XXX*/, ih);
! 160: }
! 161:
! 162: int
! 163: api_up1000_intr_line(void *icv, pci_intr_handle_t ih)
! 164: {
! 165: return sio_intr_line(NULL /*XXX*/, ih);
! 166: }
! 167:
! 168: void *
! 169: api_up1000_intr_establish(void *icv, pci_intr_handle_t ih, int level,
! 170: int (*func)(void *), void *arg, char *name)
! 171: {
! 172: #if 0
! 173: struct irongate_config *icp = icv;
! 174: #endif
! 175:
! 176: return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func,
! 177: arg, name);
! 178: }
! 179:
! 180: void
! 181: api_up1000_intr_disestablish(void *icv, void *cookie)
! 182: {
! 183: #if 0
! 184: struct irongate_config *icp = icv;
! 185: #endif
! 186:
! 187: sio_intr_disestablish(NULL /*XXX*/, cookie);
! 188: }
! 189:
! 190: void *
! 191: api_up1000_pciide_compat_intr_establish(void *icv, struct device *dev,
! 192: struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg)
! 193: {
! 194: pci_chipset_tag_t pc = pa->pa_pc;
! 195: void *cookie = NULL;
! 196: int bus, irq;
! 197:
! 198: pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL);
! 199:
! 200: /*
! 201: * If this isn't PCI bus #0, all bets are off.
! 202: */
! 203: if (bus != 0)
! 204: return (NULL);
! 205:
! 206: irq = PCIIDE_COMPAT_IRQ(chan);
! 207: #if NSIO
! 208: cookie = sio_intr_establish(NULL /*XXX*/, irq, IST_EDGE, IPL_BIO,
! 209: func, arg, dev->dv_xname);
! 210: if (cookie == NULL)
! 211: return (NULL);
! 212: #endif
! 213: return (cookie);
! 214: }
! 215:
! 216: void
! 217: api_up1000_pciide_compat_intr_disestablish(void *v, void *cookie)
! 218: {
! 219: sio_intr_disestablish(NULL, cookie);
! 220: }
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