amd756.c revision 1.2.2.2
1 1.2.2.2 lukem /* $NetBSD: amd756.c,v 1.2.2.2 2001/11/15 07:03:34 lukem Exp $ */ 2 1.2.2.2 lukem 3 1.2.2.2 lukem /*- 4 1.2.2.2 lukem * Copyright (c) 1999, 2001 The NetBSD Foundation, Inc. 5 1.2.2.2 lukem * All rights reserved. 6 1.2.2.2 lukem * 7 1.2.2.2 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 lukem * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.2.2.2 lukem * NASA Ames Research Center. 10 1.2.2.2 lukem * 11 1.2.2.2 lukem * Redistribution and use in source and binary forms, with or without 12 1.2.2.2 lukem * modification, are permitted provided that the following conditions 13 1.2.2.2 lukem * are met: 14 1.2.2.2 lukem * 1. Redistributions of source code must retain the above copyright 15 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer. 16 1.2.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer in the 18 1.2.2.2 lukem * documentation and/or other materials provided with the distribution. 19 1.2.2.2 lukem * 3. All advertising materials mentioning features or use of this software 20 1.2.2.2 lukem * must display the following acknowledgement: 21 1.2.2.2 lukem * This product includes software developed by the NetBSD 22 1.2.2.2 lukem * Foundation, Inc. and its contributors. 23 1.2.2.2 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.2.2.2 lukem * contributors may be used to endorse or promote products derived 25 1.2.2.2 lukem * from this software without specific prior written permission. 26 1.2.2.2 lukem * 27 1.2.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.2.2.2 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.2.2.2 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.2.2.2 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.2.2.2 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.2.2.2 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.2.2.2 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.2.2.2 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.2.2.2 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.2.2.2 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.2.2.2 lukem * POSSIBILITY OF SUCH DAMAGE. 38 1.2.2.2 lukem */ 39 1.2.2.2 lukem 40 1.2.2.2 lukem /* 41 1.2.2.2 lukem * Copyright (c) 1999, by UCHIYAMA Yasushi 42 1.2.2.2 lukem * All rights reserved. 43 1.2.2.2 lukem * 44 1.2.2.2 lukem * Redistribution and use in source and binary forms, with or without 45 1.2.2.2 lukem * modification, are permitted provided that the following conditions 46 1.2.2.2 lukem * are met: 47 1.2.2.2 lukem * 1. Redistributions of source code must retain the above copyright 48 1.2.2.2 lukem * notice, this list of conditions and the following disclaimer. 49 1.2.2.2 lukem * 2. The name of the developer may NOT be used to endorse or promote products 50 1.2.2.2 lukem * derived from this software without specific prior written permission. 51 1.2.2.2 lukem * 52 1.2.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 53 1.2.2.2 lukem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 1.2.2.2 lukem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 1.2.2.2 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 56 1.2.2.2 lukem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 1.2.2.2 lukem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 1.2.2.2 lukem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 1.2.2.2 lukem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 1.2.2.2 lukem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 1.2.2.2 lukem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 1.2.2.2 lukem * SUCH DAMAGE. 63 1.2.2.2 lukem */ 64 1.2.2.2 lukem 65 1.2.2.2 lukem /* 66 1.2.2.2 lukem * Support for the Advanced Micro Devices AMD756 Peripheral Bus Controller. 67 1.2.2.2 lukem */ 68 1.2.2.2 lukem 69 1.2.2.2 lukem #include <sys/cdefs.h> 70 1.2.2.2 lukem __KERNEL_RCSID(0, "$NetBSD: amd756.c,v 1.2.2.2 2001/11/15 07:03:34 lukem Exp $"); 71 1.2.2.2 lukem 72 1.2.2.2 lukem #include <sys/param.h> 73 1.2.2.2 lukem #include <sys/systm.h> 74 1.2.2.2 lukem #include <sys/device.h> 75 1.2.2.2 lukem #include <sys/malloc.h> 76 1.2.2.2 lukem 77 1.2.2.2 lukem #include <machine/intr.h> 78 1.2.2.2 lukem #include <machine/bus.h> 79 1.2.2.2 lukem 80 1.2.2.2 lukem #include <dev/pci/pcivar.h> 81 1.2.2.2 lukem #include <dev/pci/pcireg.h> 82 1.2.2.2 lukem #include <dev/pci/pcidevs.h> 83 1.2.2.2 lukem 84 1.2.2.2 lukem #include <i386/pci/pci_intr_fixup.h> 85 1.2.2.2 lukem #include <i386/pci/amd756reg.h> 86 1.2.2.2 lukem 87 1.2.2.2 lukem struct amd756_handle { 88 1.2.2.2 lukem bus_space_tag_t ph_iot; 89 1.2.2.2 lukem bus_space_handle_t ph_regs_ioh; 90 1.2.2.2 lukem pci_chipset_tag_t ph_pc; 91 1.2.2.2 lukem pcitag_t ph_tag; 92 1.2.2.2 lukem }; 93 1.2.2.2 lukem 94 1.2.2.2 lukem int amd756_getclink __P((pciintr_icu_handle_t, int, int *)); 95 1.2.2.2 lukem int amd756_get_intr __P((pciintr_icu_handle_t, int, int *)); 96 1.2.2.2 lukem int amd756_set_intr __P((pciintr_icu_handle_t, int, int)); 97 1.2.2.2 lukem int amd756_get_trigger __P((pciintr_icu_handle_t, int, int *)); 98 1.2.2.2 lukem int amd756_set_trigger __P((pciintr_icu_handle_t, int, int)); 99 1.2.2.2 lukem #ifdef AMD756_DEBUG 100 1.2.2.2 lukem static void amd756_pir_dump __P((struct amd756_handle *)); 101 1.2.2.2 lukem #endif 102 1.2.2.2 lukem 103 1.2.2.2 lukem const struct pciintr_icu amd756_pci_icu = { 104 1.2.2.2 lukem amd756_getclink, 105 1.2.2.2 lukem amd756_get_intr, 106 1.2.2.2 lukem amd756_set_intr, 107 1.2.2.2 lukem amd756_get_trigger, 108 1.2.2.2 lukem amd756_set_trigger, 109 1.2.2.2 lukem }; 110 1.2.2.2 lukem 111 1.2.2.2 lukem 112 1.2.2.2 lukem int 113 1.2.2.2 lukem amd756_init(pc, iot, tag, ptagp, phandp) 114 1.2.2.2 lukem pci_chipset_tag_t pc; 115 1.2.2.2 lukem bus_space_tag_t iot; 116 1.2.2.2 lukem pcitag_t tag; 117 1.2.2.2 lukem pciintr_icu_tag_t *ptagp; 118 1.2.2.2 lukem pciintr_icu_handle_t *phandp; 119 1.2.2.2 lukem { 120 1.2.2.2 lukem struct amd756_handle *ph; 121 1.2.2.2 lukem 122 1.2.2.2 lukem ph = malloc(sizeof(*ph), M_DEVBUF, M_NOWAIT); 123 1.2.2.2 lukem if (ph == NULL) 124 1.2.2.2 lukem return (1); 125 1.2.2.2 lukem 126 1.2.2.2 lukem ph->ph_iot = iot; 127 1.2.2.2 lukem ph->ph_pc = pc; 128 1.2.2.2 lukem ph->ph_tag = tag; 129 1.2.2.2 lukem 130 1.2.2.2 lukem *ptagp = &amd756_pci_icu; 131 1.2.2.2 lukem *phandp = ph; 132 1.2.2.2 lukem 133 1.2.2.2 lukem #ifdef AMD756_DEBUG 134 1.2.2.2 lukem amd756_pir_dump(ph); 135 1.2.2.2 lukem #endif 136 1.2.2.2 lukem 137 1.2.2.2 lukem return (0); 138 1.2.2.2 lukem } 139 1.2.2.2 lukem 140 1.2.2.2 lukem int 141 1.2.2.2 lukem amd756_getclink(v, link, clinkp) 142 1.2.2.2 lukem pciintr_icu_handle_t v; 143 1.2.2.2 lukem int link, *clinkp; 144 1.2.2.2 lukem { 145 1.2.2.2 lukem if (AMD756_LEGAL_LINK(link - 1) == 0) 146 1.2.2.2 lukem return (1); 147 1.2.2.2 lukem 148 1.2.2.2 lukem *clinkp = link - 1; 149 1.2.2.2 lukem 150 1.2.2.2 lukem return (0); 151 1.2.2.2 lukem } 152 1.2.2.2 lukem 153 1.2.2.2 lukem int 154 1.2.2.2 lukem amd756_get_intr(v, clink, irqp) 155 1.2.2.2 lukem pciintr_icu_handle_t v; 156 1.2.2.2 lukem int clink, *irqp; 157 1.2.2.2 lukem { 158 1.2.2.2 lukem struct amd756_handle *ph = v; 159 1.2.2.2 lukem pcireg_t reg; 160 1.2.2.2 lukem int val; 161 1.2.2.2 lukem 162 1.2.2.2 lukem if (AMD756_LEGAL_LINK(clink) == 0) 163 1.2.2.2 lukem return (1); 164 1.2.2.2 lukem 165 1.2.2.2 lukem reg = AMD756_GET_PIIRQSEL(ph); 166 1.2.2.2 lukem val = (reg >> (4 * clink)) & 0x0f; 167 1.2.2.2 lukem *irqp = (val == 0) ? 168 1.2.2.2 lukem I386_PCI_INTERRUPT_LINE_NO_CONNECTION : val; 169 1.2.2.2 lukem 170 1.2.2.2 lukem return (0); 171 1.2.2.2 lukem } 172 1.2.2.2 lukem 173 1.2.2.2 lukem int 174 1.2.2.2 lukem amd756_set_intr(v, clink, irq) 175 1.2.2.2 lukem pciintr_icu_handle_t v; 176 1.2.2.2 lukem int clink, irq; 177 1.2.2.2 lukem { 178 1.2.2.2 lukem struct amd756_handle *ph = v; 179 1.2.2.2 lukem int val; 180 1.2.2.2 lukem pcireg_t reg; 181 1.2.2.2 lukem 182 1.2.2.2 lukem if (AMD756_LEGAL_LINK(clink) == 0 || AMD756_LEGAL_IRQ(irq) == 0) 183 1.2.2.2 lukem return (1); 184 1.2.2.2 lukem 185 1.2.2.2 lukem reg = AMD756_GET_PIIRQSEL(ph); 186 1.2.2.2 lukem amd756_get_intr(v, clink, &val); 187 1.2.2.2 lukem reg &= ~(0x000f << (4 * clink)); 188 1.2.2.2 lukem reg |= irq << (4 * clink); 189 1.2.2.2 lukem AMD756_SET_PIIRQSEL(ph, reg); 190 1.2.2.2 lukem 191 1.2.2.2 lukem return (0); 192 1.2.2.2 lukem } 193 1.2.2.2 lukem 194 1.2.2.2 lukem int 195 1.2.2.2 lukem amd756_get_trigger(v, irq, triggerp) 196 1.2.2.2 lukem pciintr_icu_handle_t v; 197 1.2.2.2 lukem int irq, *triggerp; 198 1.2.2.2 lukem { 199 1.2.2.2 lukem struct amd756_handle *ph = v; 200 1.2.2.2 lukem int i, pciirq; 201 1.2.2.2 lukem pcireg_t reg; 202 1.2.2.2 lukem 203 1.2.2.2 lukem if (AMD756_LEGAL_IRQ(irq) == 0) 204 1.2.2.2 lukem return (1); 205 1.2.2.2 lukem 206 1.2.2.2 lukem for (i = 0; i <= 3; i++) { 207 1.2.2.2 lukem amd756_get_intr(v, i, &pciirq); 208 1.2.2.2 lukem if (pciirq == irq) { 209 1.2.2.2 lukem reg = AMD756_GET_EDGESEL(ph); 210 1.2.2.2 lukem if (reg & (1 << i)) 211 1.2.2.2 lukem *triggerp = IST_EDGE; 212 1.2.2.2 lukem else 213 1.2.2.2 lukem *triggerp = IST_LEVEL; 214 1.2.2.2 lukem break; 215 1.2.2.2 lukem } 216 1.2.2.2 lukem } 217 1.2.2.2 lukem 218 1.2.2.2 lukem return (0); 219 1.2.2.2 lukem } 220 1.2.2.2 lukem 221 1.2.2.2 lukem int 222 1.2.2.2 lukem amd756_set_trigger(v, irq, trigger) 223 1.2.2.2 lukem pciintr_icu_handle_t v; 224 1.2.2.2 lukem int irq, trigger; 225 1.2.2.2 lukem { 226 1.2.2.2 lukem struct amd756_handle *ph = v; 227 1.2.2.2 lukem int i, pciirq; 228 1.2.2.2 lukem pcireg_t reg; 229 1.2.2.2 lukem 230 1.2.2.2 lukem if (AMD756_LEGAL_IRQ(irq) == 0) 231 1.2.2.2 lukem return (1); 232 1.2.2.2 lukem 233 1.2.2.2 lukem for (i = 0; i <= 3; i++) { 234 1.2.2.2 lukem amd756_get_intr(v, i, &pciirq); 235 1.2.2.2 lukem if (pciirq == irq) { 236 1.2.2.2 lukem reg = AMD756_GET_PIIRQSEL(ph); 237 1.2.2.2 lukem if (trigger == IST_LEVEL) 238 1.2.2.2 lukem reg &= ~(1 << (4 * i)); 239 1.2.2.2 lukem else 240 1.2.2.2 lukem reg |= 1 << (4 * i); 241 1.2.2.2 lukem AMD756_SET_PIIRQSEL(ph, reg); 242 1.2.2.2 lukem break; 243 1.2.2.2 lukem } 244 1.2.2.2 lukem } 245 1.2.2.2 lukem 246 1.2.2.2 lukem return (0); 247 1.2.2.2 lukem } 248 1.2.2.2 lukem 249 1.2.2.2 lukem #ifdef AMD756_DEBUG 250 1.2.2.2 lukem static void 251 1.2.2.2 lukem amd756_pir_dump(ph) 252 1.2.2.2 lukem struct amd756_handle *ph; 253 1.2.2.2 lukem { 254 1.2.2.2 lukem int a, b; 255 1.2.2.2 lukem 256 1.2.2.2 lukem printf ("AMD756 PCI INTERRUPT ROUTING REGISTERS:\n"); 257 1.2.2.2 lukem 258 1.2.2.2 lukem a = AMD756_GET_EDGESEL(ph); 259 1.2.2.2 lukem b = AMD756_GET_PIIRQSEL(ph); 260 1.2.2.2 lukem 261 1.2.2.2 lukem printf ("TRIGGER: %02x, ROUTING: %04x\n", a, b); 262 1.2.2.2 lukem } 263 1.2.2.2 lukem #endif 264
Indexes created Wed Oct 22 13:09:56 GMT 2025