via82c586.c revision 1.4.2.2
1 1.4.2.2 lukem /* $NetBSD: via82c586.c,v 1.4.2.2 2001/11/15 07:03:36 lukem Exp $ */ 2 1.4.2.2 lukem 3 1.4.2.2 lukem /*- 4 1.4.2.2 lukem * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.4.2.2 lukem * All rights reserved. 6 1.4.2.2 lukem * 7 1.4.2.2 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.4.2.2 lukem * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.4.2.2 lukem * NASA Ames Research Center. 10 1.4.2.2 lukem * 11 1.4.2.2 lukem * Redistribution and use in source and binary forms, with or without 12 1.4.2.2 lukem * modification, are permitted provided that the following conditions 13 1.4.2.2 lukem * are met: 14 1.4.2.2 lukem * 1. Redistributions of source code must retain the above copyright 15 1.4.2.2 lukem * notice, this list of conditions and the following disclaimer. 16 1.4.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 17 1.4.2.2 lukem * notice, this list of conditions and the following disclaimer in the 18 1.4.2.2 lukem * documentation and/or other materials provided with the distribution. 19 1.4.2.2 lukem * 3. All advertising materials mentioning features or use of this software 20 1.4.2.2 lukem * must display the following acknowledgement: 21 1.4.2.2 lukem * This product includes software developed by the NetBSD 22 1.4.2.2 lukem * Foundation, Inc. and its contributors. 23 1.4.2.2 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.4.2.2 lukem * contributors may be used to endorse or promote products derived 25 1.4.2.2 lukem * from this software without specific prior written permission. 26 1.4.2.2 lukem * 27 1.4.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.4.2.2 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.4.2.2 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.4.2.2 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.4.2.2 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.4.2.2 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.4.2.2 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.4.2.2 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.4.2.2 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.4.2.2 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.4.2.2 lukem * POSSIBILITY OF SUCH DAMAGE. 38 1.4.2.2 lukem */ 39 1.4.2.2 lukem 40 1.4.2.2 lukem /* 41 1.4.2.2 lukem * Copyright (c) 1999, by UCHIYAMA Yasushi 42 1.4.2.2 lukem * All rights reserved. 43 1.4.2.2 lukem * 44 1.4.2.2 lukem * Redistribution and use in source and binary forms, with or without 45 1.4.2.2 lukem * modification, are permitted provided that the following conditions 46 1.4.2.2 lukem * are met: 47 1.4.2.2 lukem * 1. Redistributions of source code must retain the above copyright 48 1.4.2.2 lukem * notice, this list of conditions and the following disclaimer. 49 1.4.2.2 lukem * 2. The name of the developer may NOT be used to endorse or promote products 50 1.4.2.2 lukem * derived from this software without specific prior written permission. 51 1.4.2.2 lukem * 52 1.4.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 53 1.4.2.2 lukem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 1.4.2.2 lukem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 1.4.2.2 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 56 1.4.2.2 lukem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 1.4.2.2 lukem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 1.4.2.2 lukem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 1.4.2.2 lukem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 1.4.2.2 lukem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 1.4.2.2 lukem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 1.4.2.2 lukem * SUCH DAMAGE. 63 1.4.2.2 lukem */ 64 1.4.2.2 lukem 65 1.4.2.2 lukem /* 66 1.4.2.2 lukem * Support for the VIA 82c586 PCI-ISA bridge interrupt controller. 67 1.4.2.2 lukem */ 68 1.4.2.2 lukem 69 1.4.2.2 lukem #include <sys/cdefs.h> 70 1.4.2.2 lukem __KERNEL_RCSID(0, "$NetBSD: via82c586.c,v 1.4.2.2 2001/11/15 07:03:36 lukem Exp $"); 71 1.4.2.2 lukem 72 1.4.2.2 lukem #include <sys/param.h> 73 1.4.2.2 lukem #include <sys/systm.h> 74 1.4.2.2 lukem #include <sys/device.h> 75 1.4.2.2 lukem 76 1.4.2.2 lukem #include <machine/intr.h> 77 1.4.2.2 lukem #include <machine/bus.h> 78 1.4.2.2 lukem 79 1.4.2.2 lukem #include <dev/pci/pcivar.h> 80 1.4.2.2 lukem #include <dev/pci/pcireg.h> 81 1.4.2.2 lukem #include <dev/pci/pcidevs.h> 82 1.4.2.2 lukem 83 1.4.2.2 lukem #include <i386/pci/pci_intr_fixup.h> 84 1.4.2.2 lukem #include <i386/pci/via82c586reg.h> 85 1.4.2.2 lukem #include <i386/pci/piixvar.h> 86 1.4.2.2 lukem 87 1.4.2.2 lukem int via82c586_getclink __P((pciintr_icu_handle_t, int, int *)); 88 1.4.2.2 lukem int via82c586_get_intr __P((pciintr_icu_handle_t, int, int *)); 89 1.4.2.2 lukem int via82c586_set_intr __P((pciintr_icu_handle_t, int, int)); 90 1.4.2.2 lukem int via82c586_get_trigger __P((pciintr_icu_handle_t, int, int *)); 91 1.4.2.2 lukem int via82c586_set_trigger __P((pciintr_icu_handle_t, int, int)); 92 1.4.2.2 lukem 93 1.4.2.2 lukem const struct pciintr_icu via82c586_pci_icu = { 94 1.4.2.2 lukem via82c586_getclink, 95 1.4.2.2 lukem via82c586_get_intr, 96 1.4.2.2 lukem via82c586_set_intr, 97 1.4.2.2 lukem via82c586_get_trigger, 98 1.4.2.2 lukem via82c586_set_trigger, 99 1.4.2.2 lukem }; 100 1.4.2.2 lukem 101 1.4.2.2 lukem const int vp3_cfg_trigger_shift[] = { 102 1.4.2.2 lukem VP3_CFG_TRIGGER_SHIFT_PIRQA, 103 1.4.2.2 lukem VP3_CFG_TRIGGER_SHIFT_PIRQB, 104 1.4.2.2 lukem VP3_CFG_TRIGGER_SHIFT_PIRQC, 105 1.4.2.2 lukem VP3_CFG_TRIGGER_SHIFT_PIRQD, 106 1.4.2.2 lukem }; 107 1.4.2.2 lukem 108 1.4.2.2 lukem #define VP3_TRIGGER(reg, pirq) (((reg) >> vp3_cfg_trigger_shift[(pirq)]) & \ 109 1.4.2.2 lukem VP3_CFG_TRIGGER_MASK) 110 1.4.2.2 lukem 111 1.4.2.2 lukem const int vp3_cfg_intr_shift[] = { 112 1.4.2.2 lukem VP3_CFG_INTR_SHIFT_PIRQA, 113 1.4.2.2 lukem VP3_CFG_INTR_SHIFT_PIRQB, 114 1.4.2.2 lukem VP3_CFG_INTR_SHIFT_PIRQC, 115 1.4.2.2 lukem VP3_CFG_INTR_SHIFT_PIRQD, 116 1.4.2.2 lukem }; 117 1.4.2.2 lukem 118 1.4.2.2 lukem #define VP3_PIRQ(reg, pirq) (((reg) >> vp3_cfg_intr_shift[(pirq)]) & \ 119 1.4.2.2 lukem VP3_CFG_INTR_MASK) 120 1.4.2.2 lukem 121 1.4.2.2 lukem int 122 1.4.2.2 lukem via82c586_init(pc, iot, tag, ptagp, phandp) 123 1.4.2.2 lukem pci_chipset_tag_t pc; 124 1.4.2.2 lukem bus_space_tag_t iot; 125 1.4.2.2 lukem pcitag_t tag; 126 1.4.2.2 lukem pciintr_icu_tag_t *ptagp; 127 1.4.2.2 lukem pciintr_icu_handle_t *phandp; 128 1.4.2.2 lukem { 129 1.4.2.2 lukem pcireg_t reg; 130 1.4.2.2 lukem 131 1.4.2.2 lukem if (piix_init(pc, iot, tag, ptagp, phandp) == 0) { 132 1.4.2.2 lukem *ptagp = &via82c586_pci_icu; 133 1.4.2.2 lukem 134 1.4.2.2 lukem /* 135 1.4.2.2 lukem * Enable EISA ELCR. 136 1.4.2.2 lukem */ 137 1.4.2.2 lukem reg = pci_conf_read(pc, tag, VP3_CFG_KBDMISCCTRL12_REG); 138 1.4.2.2 lukem reg |= VP3_CFG_MISCCTRL2_EISA4D04D1PORT_ENABLE << 139 1.4.2.2 lukem VP3_CFG_MISCCTRL2_SHIFT; 140 1.4.2.2 lukem pci_conf_write(pc, tag, VP3_CFG_KBDMISCCTRL12_REG, reg); 141 1.4.2.2 lukem 142 1.4.2.2 lukem return (0); 143 1.4.2.2 lukem } 144 1.4.2.2 lukem 145 1.4.2.2 lukem return (1); 146 1.4.2.2 lukem } 147 1.4.2.2 lukem 148 1.4.2.2 lukem int 149 1.4.2.2 lukem via82c586_getclink(v, link, clinkp) 150 1.4.2.2 lukem pciintr_icu_handle_t v; 151 1.4.2.2 lukem int link, *clinkp; 152 1.4.2.2 lukem { 153 1.4.2.2 lukem 154 1.4.2.2 lukem if (VP3_LEGAL_LINK(link - 1)) { 155 1.4.2.2 lukem *clinkp = link - 1; 156 1.4.2.2 lukem return (0); 157 1.4.2.2 lukem } 158 1.4.2.2 lukem 159 1.4.2.2 lukem return (1); 160 1.4.2.2 lukem } 161 1.4.2.2 lukem 162 1.4.2.2 lukem int 163 1.4.2.2 lukem via82c586_get_intr(v, clink, irqp) 164 1.4.2.2 lukem pciintr_icu_handle_t v; 165 1.4.2.2 lukem int clink, *irqp; 166 1.4.2.2 lukem { 167 1.4.2.2 lukem struct piix_handle *ph = v; 168 1.4.2.2 lukem pcireg_t reg; 169 1.4.2.2 lukem int val; 170 1.4.2.2 lukem 171 1.4.2.2 lukem if (VP3_LEGAL_LINK(clink) == 0) 172 1.4.2.2 lukem return (1); 173 1.4.2.2 lukem 174 1.4.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG); 175 1.4.2.2 lukem val = VP3_PIRQ(reg, clink); 176 1.4.2.2 lukem *irqp = (val == VP3_PIRQ_NONE) ? 177 1.4.2.2 lukem I386_PCI_INTERRUPT_LINE_NO_CONNECTION : val; 178 1.4.2.2 lukem 179 1.4.2.2 lukem return (0); 180 1.4.2.2 lukem } 181 1.4.2.2 lukem 182 1.4.2.2 lukem int 183 1.4.2.2 lukem via82c586_set_intr(v, clink, irq) 184 1.4.2.2 lukem pciintr_icu_handle_t v; 185 1.4.2.2 lukem int clink, irq; 186 1.4.2.2 lukem { 187 1.4.2.2 lukem struct piix_handle *ph = v; 188 1.4.2.2 lukem int shift, val; 189 1.4.2.2 lukem pcireg_t reg; 190 1.4.2.2 lukem 191 1.4.2.2 lukem if (VP3_LEGAL_LINK(clink) == 0 || VP3_LEGAL_IRQ(irq) == 0) 192 1.4.2.2 lukem return (1); 193 1.4.2.2 lukem 194 1.4.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG); 195 1.4.2.2 lukem via82c586_get_intr(v, clink, &val); 196 1.4.2.2 lukem shift = vp3_cfg_intr_shift[clink]; 197 1.4.2.2 lukem reg &= ~(VP3_CFG_INTR_MASK << shift); 198 1.4.2.2 lukem reg |= (irq << shift); 199 1.4.2.2 lukem pci_conf_write(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG, reg); 200 1.4.2.2 lukem if (via82c586_get_intr(v, clink, &val) != 0 || 201 1.4.2.2 lukem val != irq) 202 1.4.2.2 lukem return (1); 203 1.4.2.2 lukem 204 1.4.2.2 lukem return (0); 205 1.4.2.2 lukem } 206 1.4.2.2 lukem 207 1.4.2.2 lukem int 208 1.4.2.2 lukem via82c586_get_trigger(v, irq, triggerp) 209 1.4.2.2 lukem pciintr_icu_handle_t v; 210 1.4.2.2 lukem int irq, *triggerp; 211 1.4.2.2 lukem { 212 1.4.2.2 lukem struct piix_handle *ph = v; 213 1.4.2.2 lukem int i, error, check_consistency, pciirq, pcitrigger = IST_NONE; 214 1.4.2.2 lukem pcireg_t reg; 215 1.4.2.2 lukem 216 1.4.2.2 lukem if (VP3_LEGAL_IRQ(irq) == 0) 217 1.4.2.2 lukem return (1); 218 1.4.2.2 lukem 219 1.4.2.2 lukem check_consistency = 0; 220 1.4.2.2 lukem for (i = 0; i <= 3; i++) { 221 1.4.2.2 lukem via82c586_get_intr(v, i, &pciirq); 222 1.4.2.2 lukem if (pciirq == irq) { 223 1.4.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 224 1.4.2.2 lukem VP3_CFG_PIRQ_REG); 225 1.4.2.2 lukem if (VP3_TRIGGER(reg, i) == VP3_CFG_TRIGGER_EDGE) 226 1.4.2.2 lukem pcitrigger = IST_EDGE; 227 1.4.2.2 lukem else 228 1.4.2.2 lukem pcitrigger = IST_LEVEL; 229 1.4.2.2 lukem check_consistency = 1; 230 1.4.2.2 lukem break; 231 1.4.2.2 lukem } 232 1.4.2.2 lukem } 233 1.4.2.2 lukem 234 1.4.2.2 lukem error = piix_get_trigger(v, irq, triggerp); 235 1.4.2.2 lukem if (error == 0 && check_consistency && pcitrigger != *triggerp) 236 1.4.2.2 lukem return (1); 237 1.4.2.2 lukem return (error); 238 1.4.2.2 lukem } 239 1.4.2.2 lukem 240 1.4.2.2 lukem int 241 1.4.2.2 lukem via82c586_set_trigger(v, irq, trigger) 242 1.4.2.2 lukem pciintr_icu_handle_t v; 243 1.4.2.2 lukem int irq, trigger; 244 1.4.2.2 lukem { 245 1.4.2.2 lukem struct piix_handle *ph = v; 246 1.4.2.2 lukem int i, pciirq, shift, testtrig; 247 1.4.2.2 lukem pcireg_t reg; 248 1.4.2.2 lukem 249 1.4.2.2 lukem if (VP3_LEGAL_IRQ(irq) == 0) 250 1.4.2.2 lukem return (1); 251 1.4.2.2 lukem 252 1.4.2.2 lukem for (i = 0; i <= 3; i++) { 253 1.4.2.2 lukem via82c586_get_intr(v, i, &pciirq); 254 1.4.2.2 lukem if (pciirq == irq) { 255 1.4.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 256 1.4.2.2 lukem VP3_CFG_PIRQ_REG); 257 1.4.2.2 lukem shift = vp3_cfg_trigger_shift[i]; 258 1.4.2.2 lukem if (trigger == IST_LEVEL) 259 1.4.2.2 lukem reg &= ~(VP3_CFG_TRIGGER_MASK << shift); 260 1.4.2.2 lukem else 261 1.4.2.2 lukem reg |= (VP3_CFG_TRIGGER_EDGE << shift); 262 1.4.2.2 lukem pci_conf_write(ph->ph_pc, ph->ph_tag, 263 1.4.2.2 lukem VP3_CFG_PIRQ_REG, reg); 264 1.4.2.2 lukem break; 265 1.4.2.2 lukem } 266 1.4.2.2 lukem } 267 1.4.2.2 lukem 268 1.4.2.2 lukem if (piix_set_trigger(v, irq, trigger) != 0 || 269 1.4.2.2 lukem via82c586_get_trigger(v, irq, &testtrig) != 0 || 270 1.4.2.2 lukem testtrig != trigger) 271 1.4.2.2 lukem return (1); 272 1.4.2.2 lukem 273 1.4.2.2 lukem return (0); 274 1.4.2.2 lukem } 275
Indexes created Wed Oct 29 20:09:47 GMT 2025