pci_up1000.c revision 1.6.4.2
1 /* $NetBSD: pci_up1000.c,v 1.6.4.2 2002/06/23 17:34:15 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 40 41 __KERNEL_RCSID(0, "$NetBSD: pci_up1000.c,v 1.6.4.2 2002/06/23 17:34:15 jdolecek Exp $"); 42 43 #include <sys/types.h> 44 #include <sys/param.h> 45 #include <sys/time.h> 46 #include <sys/systm.h> 47 #include <sys/errno.h> 48 #include <sys/device.h> 49 50 #include <uvm/uvm_extern.h> 51 52 #include <machine/autoconf.h> 53 #include <machine/bus.h> 54 #include <machine/intr.h> 55 56 #include <dev/isa/isavar.h> 57 58 #include <dev/pci/pcireg.h> 59 #include <dev/pci/pcivar.h> 60 #include <dev/pci/pciidereg.h> 61 #include <dev/pci/pciidevar.h> 62 63 #include <alpha/pci/irongatevar.h> 64 65 #include <alpha/pci/pci_up1000.h> 66 #include <alpha/pci/siovar.h> 67 #include <alpha/pci/sioreg.h> 68 69 #include "sio.h" 70 71 int api_up1000_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 72 const char *api_up1000_intr_string(void *, pci_intr_handle_t); 73 const struct evcnt *api_up1000_intr_evcnt(void *, pci_intr_handle_t); 74 void *api_up1000_intr_establish(void *, pci_intr_handle_t, 75 int, int (*func)(void *), void *); 76 void api_up1000_intr_disestablish(void *, void *); 77 78 void *api_up1000_pciide_compat_intr_establish(void *, struct device *, 79 struct pci_attach_args *, int, int (*)(void *), void *); 80 81 void 82 pci_up1000_pickintr(struct irongate_config *icp) 83 { 84 bus_space_tag_t iot = &icp->ic_iot; 85 pci_chipset_tag_t pc = &icp->ic_pc; 86 87 pc->pc_intr_v = icp; 88 pc->pc_intr_map = api_up1000_intr_map; 89 pc->pc_intr_string = api_up1000_intr_string; 90 pc->pc_intr_evcnt = api_up1000_intr_evcnt; 91 pc->pc_intr_establish = api_up1000_intr_establish; 92 pc->pc_intr_disestablish = api_up1000_intr_disestablish; 93 94 pc->pc_pciide_compat_intr_establish = 95 api_up1000_pciide_compat_intr_establish; 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(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 106 { 107 pci_chipset_tag_t pc = pa->pa_pc; 108 int buspin = pa->pa_intrpin; 109 int bustag = pa->pa_intrtag; 110 int line = pa->pa_intrline; 111 int bus, device, function; 112 113 if (buspin == 0) { 114 /* No IRQ used. */ 115 return 1; 116 } 117 if (buspin > 4) { 118 printf("api_up1000_intr_map: bad interrupt pin %d\n", 119 buspin); 120 return 1; 121 } 122 123 pci_decompose_tag(pc, bustag, &bus, &device, &function); 124 125 /* 126 * The console places the interrupt mapping in the "line" value. 127 * A value of (char)-1 indicates there is no mapping. 128 */ 129 if (line == 0xff) { 130 printf("api_up1000_intr_map: no mapping for %d/%d/%d\n", 131 bus, device, function); 132 return (1); 133 } 134 135 /* XXX Check for 0? */ 136 if (line > 15) { 137 printf("api_up1000_intr_map: ISA IRQ too large (%d)\n", 138 line); 139 return (1); 140 } 141 if (line == 2) { 142 printf("api_up1000_intr_map: changed IRQ 2 to IRQ 9\n"); 143 line = 9; 144 } 145 146 *ihp = line; 147 return (0); 148 } 149 150 const char * 151 api_up1000_intr_string(void *icv, pci_intr_handle_t ih) 152 { 153 #if 0 154 struct irongate_config *icp = icv; 155 #endif 156 157 return sio_intr_string(NULL /*XXX*/, ih); 158 } 159 160 const struct evcnt * 161 api_up1000_intr_evcnt(void *icv, pci_intr_handle_t ih) 162 { 163 #if 0 164 struct irongate_config *icp = icv; 165 #endif 166 167 return sio_intr_evcnt(NULL /*XXX*/, ih); 168 } 169 170 void * 171 api_up1000_intr_establish(void *icv, pci_intr_handle_t ih, int level, 172 int (*func)(void *), void *arg) 173 { 174 #if 0 175 struct irongate_config *icp = icv; 176 #endif 177 178 return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func, 179 arg); 180 } 181 182 void 183 api_up1000_intr_disestablish(void *icv, void *cookie) 184 { 185 #if 0 186 struct irongate_config *icp = icv; 187 #endif 188 189 sio_intr_disestablish(NULL /*XXX*/, cookie); 190 } 191 192 void * 193 api_up1000_pciide_compat_intr_establish(void *icv, struct device *dev, 194 struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg) 195 { 196 pci_chipset_tag_t pc = pa->pa_pc; 197 void *cookie = NULL; 198 int bus, irq; 199 200 pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL); 201 202 /* 203 * If this isn't PCI bus #0, all bets are off. 204 */ 205 if (bus != 0) 206 return (NULL); 207 208 irq = PCIIDE_COMPAT_IRQ(chan); 209 #if NSIO 210 cookie = sio_intr_establish(NULL /*XXX*/, irq, IST_EDGE, IPL_BIO, 211 func, arg); 212 if (cookie == NULL) 213 return (NULL); 214 printf("%s: %s channel interrupting at %s\n", dev->dv_xname, 215 PCIIDE_CHANNEL_NAME(chan), sio_intr_string(NULL /*XXX*/, irq)); 216 #endif 217 return (cookie); 218 } 219
Indexes created Thu Oct 30 16:09:53 GMT 2025