via82c586.c revision 1.2.4.3
1 1.2.4.3 bouyer /* $NetBSD: via82c586.c,v 1.2.4.3 2001/01/18 09:22:38 bouyer Exp $ */ 2 1.2.4.2 bouyer 3 1.2.4.2 bouyer /*- 4 1.2.4.2 bouyer * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.2.4.2 bouyer * All rights reserved. 6 1.2.4.2 bouyer * 7 1.2.4.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 bouyer * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.2.4.2 bouyer * NASA Ames Research Center. 10 1.2.4.2 bouyer * 11 1.2.4.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.2.4.2 bouyer * modification, are permitted provided that the following conditions 13 1.2.4.2 bouyer * are met: 14 1.2.4.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.2.4.2 bouyer * notice, this list of conditions and the following disclaimer. 16 1.2.4.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.4.2 bouyer * notice, this list of conditions and the following disclaimer in the 18 1.2.4.2 bouyer * documentation and/or other materials provided with the distribution. 19 1.2.4.2 bouyer * 3. All advertising materials mentioning features or use of this software 20 1.2.4.2 bouyer * must display the following acknowledgement: 21 1.2.4.2 bouyer * This product includes software developed by the NetBSD 22 1.2.4.2 bouyer * Foundation, Inc. and its contributors. 23 1.2.4.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.2.4.2 bouyer * contributors may be used to endorse or promote products derived 25 1.2.4.2 bouyer * from this software without specific prior written permission. 26 1.2.4.2 bouyer * 27 1.2.4.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.2.4.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.2.4.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.2.4.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.2.4.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.2.4.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.2.4.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.2.4.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.2.4.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.2.4.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.2.4.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 38 1.2.4.2 bouyer */ 39 1.2.4.2 bouyer 40 1.2.4.2 bouyer /* 41 1.2.4.2 bouyer * Copyright (c) 1999, by UCHIYAMA Yasushi 42 1.2.4.2 bouyer * All rights reserved. 43 1.2.4.2 bouyer * 44 1.2.4.2 bouyer * Redistribution and use in source and binary forms, with or without 45 1.2.4.2 bouyer * modification, are permitted provided that the following conditions 46 1.2.4.2 bouyer * are met: 47 1.2.4.2 bouyer * 1. Redistributions of source code must retain the above copyright 48 1.2.4.2 bouyer * notice, this list of conditions and the following disclaimer. 49 1.2.4.2 bouyer * 2. The name of the developer may NOT be used to endorse or promote products 50 1.2.4.2 bouyer * derived from this software without specific prior written permission. 51 1.2.4.2 bouyer * 52 1.2.4.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 53 1.2.4.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 1.2.4.2 bouyer * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 1.2.4.2 bouyer * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 56 1.2.4.2 bouyer * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 1.2.4.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 1.2.4.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 1.2.4.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 1.2.4.2 bouyer * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 1.2.4.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 1.2.4.2 bouyer * SUCH DAMAGE. 63 1.2.4.2 bouyer */ 64 1.2.4.2 bouyer 65 1.2.4.2 bouyer /* 66 1.2.4.2 bouyer * Support for the VIA 82c586 PCI-ISA bridge interrupt controller. 67 1.2.4.2 bouyer */ 68 1.2.4.2 bouyer 69 1.2.4.2 bouyer #include <sys/param.h> 70 1.2.4.2 bouyer #include <sys/systm.h> 71 1.2.4.2 bouyer #include <sys/device.h> 72 1.2.4.2 bouyer 73 1.2.4.2 bouyer #include <machine/intr.h> 74 1.2.4.2 bouyer #include <machine/bus.h> 75 1.2.4.2 bouyer 76 1.2.4.2 bouyer #include <dev/pci/pcivar.h> 77 1.2.4.2 bouyer #include <dev/pci/pcireg.h> 78 1.2.4.2 bouyer #include <dev/pci/pcidevs.h> 79 1.2.4.2 bouyer 80 1.2.4.2 bouyer #include <i386/pci/pci_intr_fixup.h> 81 1.2.4.2 bouyer #include <i386/pci/via82c586reg.h> 82 1.2.4.2 bouyer #include <i386/pci/piixvar.h> 83 1.2.4.2 bouyer 84 1.2.4.2 bouyer int via82c586_getclink __P((pciintr_icu_handle_t, int, int *)); 85 1.2.4.2 bouyer int via82c586_get_intr __P((pciintr_icu_handle_t, int, int *)); 86 1.2.4.2 bouyer int via82c586_set_intr __P((pciintr_icu_handle_t, int, int)); 87 1.2.4.2 bouyer int via82c586_get_trigger __P((pciintr_icu_handle_t, int, int *)); 88 1.2.4.2 bouyer int via82c586_set_trigger __P((pciintr_icu_handle_t, int, int)); 89 1.2.4.2 bouyer 90 1.2.4.2 bouyer const struct pciintr_icu via82c586_pci_icu = { 91 1.2.4.2 bouyer via82c586_getclink, 92 1.2.4.2 bouyer via82c586_get_intr, 93 1.2.4.2 bouyer via82c586_set_intr, 94 1.2.4.2 bouyer via82c586_get_trigger, 95 1.2.4.2 bouyer via82c586_set_trigger, 96 1.2.4.2 bouyer }; 97 1.2.4.2 bouyer 98 1.2.4.2 bouyer const int vp3_cfg_trigger_shift[] = { 99 1.2.4.2 bouyer VP3_CFG_TRIGGER_SHIFT_PIRQA, 100 1.2.4.2 bouyer VP3_CFG_TRIGGER_SHIFT_PIRQB, 101 1.2.4.2 bouyer VP3_CFG_TRIGGER_SHIFT_PIRQC, 102 1.2.4.2 bouyer VP3_CFG_TRIGGER_SHIFT_PIRQD, 103 1.2.4.2 bouyer }; 104 1.2.4.2 bouyer 105 1.2.4.2 bouyer #define VP3_TRIGGER(reg, pirq) (((reg) >> vp3_cfg_trigger_shift[(pirq)]) & \ 106 1.2.4.2 bouyer VP3_CFG_TRIGGER_MASK) 107 1.2.4.2 bouyer 108 1.2.4.2 bouyer const int vp3_cfg_intr_shift[] = { 109 1.2.4.2 bouyer VP3_CFG_INTR_SHIFT_PIRQA, 110 1.2.4.2 bouyer VP3_CFG_INTR_SHIFT_PIRQB, 111 1.2.4.2 bouyer VP3_CFG_INTR_SHIFT_PIRQC, 112 1.2.4.2 bouyer VP3_CFG_INTR_SHIFT_PIRQD, 113 1.2.4.2 bouyer }; 114 1.2.4.2 bouyer 115 1.2.4.3 bouyer #define VP3_PIRQ(reg, pirq) (((reg) >> vp3_cfg_intr_shift[(pirq)]) & \ 116 1.2.4.2 bouyer VP3_CFG_INTR_MASK) 117 1.2.4.2 bouyer 118 1.2.4.2 bouyer int 119 1.2.4.2 bouyer via82c586_init(pc, iot, tag, ptagp, phandp) 120 1.2.4.2 bouyer pci_chipset_tag_t pc; 121 1.2.4.2 bouyer bus_space_tag_t iot; 122 1.2.4.2 bouyer pcitag_t tag; 123 1.2.4.2 bouyer pciintr_icu_tag_t *ptagp; 124 1.2.4.2 bouyer pciintr_icu_handle_t *phandp; 125 1.2.4.2 bouyer { 126 1.2.4.2 bouyer pcireg_t reg; 127 1.2.4.2 bouyer 128 1.2.4.2 bouyer if (piix_init(pc, iot, tag, ptagp, phandp) == 0) { 129 1.2.4.2 bouyer *ptagp = &via82c586_pci_icu; 130 1.2.4.2 bouyer 131 1.2.4.2 bouyer /* 132 1.2.4.2 bouyer * Enable EISA ELCR. 133 1.2.4.2 bouyer */ 134 1.2.4.2 bouyer reg = pci_conf_read(pc, tag, VP3_CFG_KBDMISCCTRL12_REG); 135 1.2.4.2 bouyer reg |= VP3_CFG_MISCCTRL2_EISA4D04D1PORT_ENABLE << 136 1.2.4.2 bouyer VP3_CFG_MISCCTRL2_SHIFT; 137 1.2.4.2 bouyer pci_conf_write(pc, tag, VP3_CFG_KBDMISCCTRL12_REG, reg); 138 1.2.4.2 bouyer 139 1.2.4.2 bouyer return (0); 140 1.2.4.2 bouyer } 141 1.2.4.2 bouyer 142 1.2.4.2 bouyer return (1); 143 1.2.4.2 bouyer } 144 1.2.4.2 bouyer 145 1.2.4.2 bouyer int 146 1.2.4.2 bouyer via82c586_getclink(v, link, clinkp) 147 1.2.4.2 bouyer pciintr_icu_handle_t v; 148 1.2.4.2 bouyer int link, *clinkp; 149 1.2.4.2 bouyer { 150 1.2.4.2 bouyer 151 1.2.4.2 bouyer if (VP3_LEGAL_LINK(link - 1)) { 152 1.2.4.2 bouyer *clinkp = link - 1; 153 1.2.4.2 bouyer return (0); 154 1.2.4.2 bouyer } 155 1.2.4.2 bouyer 156 1.2.4.2 bouyer return (1); 157 1.2.4.2 bouyer } 158 1.2.4.2 bouyer 159 1.2.4.2 bouyer int 160 1.2.4.2 bouyer via82c586_get_intr(v, clink, irqp) 161 1.2.4.2 bouyer pciintr_icu_handle_t v; 162 1.2.4.2 bouyer int clink, *irqp; 163 1.2.4.2 bouyer { 164 1.2.4.2 bouyer struct piix_handle *ph = v; 165 1.2.4.2 bouyer pcireg_t reg; 166 1.2.4.2 bouyer int val; 167 1.2.4.2 bouyer 168 1.2.4.2 bouyer if (VP3_LEGAL_LINK(clink) == 0) 169 1.2.4.2 bouyer return (1); 170 1.2.4.2 bouyer 171 1.2.4.2 bouyer reg = pci_conf_read(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG); 172 1.2.4.2 bouyer val = VP3_PIRQ(reg, clink); 173 1.2.4.2 bouyer *irqp = (val == VP3_PIRQ_NONE) ? 174 1.2.4.2 bouyer I386_PCI_INTERRUPT_LINE_NO_CONNECTION : val; 175 1.2.4.2 bouyer 176 1.2.4.2 bouyer return (0); 177 1.2.4.2 bouyer } 178 1.2.4.2 bouyer 179 1.2.4.2 bouyer int 180 1.2.4.2 bouyer via82c586_set_intr(v, clink, irq) 181 1.2.4.2 bouyer pciintr_icu_handle_t v; 182 1.2.4.2 bouyer int clink, irq; 183 1.2.4.2 bouyer { 184 1.2.4.2 bouyer struct piix_handle *ph = v; 185 1.2.4.2 bouyer int shift, val; 186 1.2.4.2 bouyer pcireg_t reg; 187 1.2.4.2 bouyer 188 1.2.4.2 bouyer if (VP3_LEGAL_LINK(clink) == 0 || VP3_LEGAL_IRQ(irq) == 0) 189 1.2.4.2 bouyer return (1); 190 1.2.4.2 bouyer 191 1.2.4.2 bouyer reg = pci_conf_read(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG); 192 1.2.4.2 bouyer via82c586_get_intr(v, clink, &val); 193 1.2.4.2 bouyer shift = vp3_cfg_intr_shift[clink]; 194 1.2.4.2 bouyer reg &= ~(VP3_CFG_INTR_MASK << shift); 195 1.2.4.2 bouyer reg |= (irq << shift); 196 1.2.4.2 bouyer pci_conf_write(ph->ph_pc, ph->ph_tag, VP3_CFG_PIRQ_REG, reg); 197 1.2.4.2 bouyer if (via82c586_get_intr(v, clink, &val) != 0 || 198 1.2.4.2 bouyer val != irq) 199 1.2.4.2 bouyer return (1); 200 1.2.4.2 bouyer 201 1.2.4.2 bouyer return (0); 202 1.2.4.2 bouyer } 203 1.2.4.2 bouyer 204 1.2.4.2 bouyer int 205 1.2.4.2 bouyer via82c586_get_trigger(v, irq, triggerp) 206 1.2.4.2 bouyer pciintr_icu_handle_t v; 207 1.2.4.2 bouyer int irq, *triggerp; 208 1.2.4.2 bouyer { 209 1.2.4.2 bouyer struct piix_handle *ph = v; 210 1.2.4.2 bouyer int i, error, check_consistency, pciirq, pcitrigger = IST_NONE; 211 1.2.4.2 bouyer pcireg_t reg; 212 1.2.4.2 bouyer 213 1.2.4.2 bouyer if (VP3_LEGAL_IRQ(irq) == 0) 214 1.2.4.2 bouyer return (1); 215 1.2.4.2 bouyer 216 1.2.4.2 bouyer check_consistency = 0; 217 1.2.4.2 bouyer for (i = 0; i <= 3; i++) { 218 1.2.4.2 bouyer via82c586_get_intr(v, i, &pciirq); 219 1.2.4.2 bouyer if (pciirq == irq) { 220 1.2.4.2 bouyer reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 221 1.2.4.2 bouyer VP3_CFG_PIRQ_REG); 222 1.2.4.2 bouyer if (VP3_TRIGGER(reg, i) == VP3_CFG_TRIGGER_EDGE) 223 1.2.4.2 bouyer pcitrigger = IST_EDGE; 224 1.2.4.2 bouyer else 225 1.2.4.2 bouyer pcitrigger = IST_LEVEL; 226 1.2.4.2 bouyer check_consistency = 1; 227 1.2.4.2 bouyer break; 228 1.2.4.2 bouyer } 229 1.2.4.2 bouyer } 230 1.2.4.2 bouyer 231 1.2.4.2 bouyer error = piix_get_trigger(v, irq, triggerp); 232 1.2.4.2 bouyer if (error == 0 && check_consistency && pcitrigger != *triggerp) 233 1.2.4.2 bouyer return (1); 234 1.2.4.2 bouyer return (error); 235 1.2.4.2 bouyer } 236 1.2.4.2 bouyer 237 1.2.4.2 bouyer int 238 1.2.4.2 bouyer via82c586_set_trigger(v, irq, trigger) 239 1.2.4.2 bouyer pciintr_icu_handle_t v; 240 1.2.4.2 bouyer int irq, trigger; 241 1.2.4.2 bouyer { 242 1.2.4.2 bouyer struct piix_handle *ph = v; 243 1.2.4.2 bouyer int i, pciirq, shift, testtrig; 244 1.2.4.2 bouyer pcireg_t reg; 245 1.2.4.2 bouyer 246 1.2.4.2 bouyer if (VP3_LEGAL_IRQ(irq) == 0) 247 1.2.4.2 bouyer return (1); 248 1.2.4.2 bouyer 249 1.2.4.2 bouyer for (i = 0; i <= 3; i++) { 250 1.2.4.2 bouyer via82c586_get_intr(v, i, &pciirq); 251 1.2.4.2 bouyer if (pciirq == irq) { 252 1.2.4.2 bouyer reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 253 1.2.4.2 bouyer VP3_CFG_PIRQ_REG); 254 1.2.4.2 bouyer shift = vp3_cfg_trigger_shift[i]; 255 1.2.4.2 bouyer if (trigger == IST_LEVEL) 256 1.2.4.2 bouyer reg &= ~(VP3_CFG_TRIGGER_MASK << shift); 257 1.2.4.2 bouyer else 258 1.2.4.2 bouyer reg |= (VP3_CFG_TRIGGER_EDGE << shift); 259 1.2.4.2 bouyer pci_conf_write(ph->ph_pc, ph->ph_tag, 260 1.2.4.2 bouyer VP3_CFG_PIRQ_REG, reg); 261 1.2.4.2 bouyer break; 262 1.2.4.2 bouyer } 263 1.2.4.2 bouyer } 264 1.2.4.2 bouyer 265 1.2.4.2 bouyer if (piix_set_trigger(v, irq, trigger) != 0 || 266 1.2.4.2 bouyer via82c586_get_trigger(v, irq, &testtrig) != 0 || 267 1.2.4.2 bouyer testtrig != trigger) 268 1.2.4.2 bouyer return (1); 269 1.2.4.2 bouyer 270 1.2.4.2 bouyer return (0); 271 1.2.4.2 bouyer } 272
Indexes created Tue Oct 28 12:10:06 GMT 2025