sis85c503.c revision 1.3.2.2
1 1.3.2.2 lukem /* $NetBSD: sis85c503.c,v 1.3.2.2 2001/11/15 07:03:36 lukem Exp $ */ 2 1.3.2.2 lukem 3 1.3.2.2 lukem /*- 4 1.3.2.2 lukem * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.3.2.2 lukem * All rights reserved. 6 1.3.2.2 lukem * 7 1.3.2.2 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 lukem * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 1.3.2.2 lukem * NASA Ames Research Center. 10 1.3.2.2 lukem * 11 1.3.2.2 lukem * Redistribution and use in source and binary forms, with or without 12 1.3.2.2 lukem * modification, are permitted provided that the following conditions 13 1.3.2.2 lukem * are met: 14 1.3.2.2 lukem * 1. Redistributions of source code must retain the above copyright 15 1.3.2.2 lukem * notice, this list of conditions and the following disclaimer. 16 1.3.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 17 1.3.2.2 lukem * notice, this list of conditions and the following disclaimer in the 18 1.3.2.2 lukem * documentation and/or other materials provided with the distribution. 19 1.3.2.2 lukem * 3. All advertising materials mentioning features or use of this software 20 1.3.2.2 lukem * must display the following acknowledgement: 21 1.3.2.2 lukem * This product includes software developed by the NetBSD 22 1.3.2.2 lukem * Foundation, Inc. and its contributors. 23 1.3.2.2 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 24 1.3.2.2 lukem * contributors may be used to endorse or promote products derived 25 1.3.2.2 lukem * from this software without specific prior written permission. 26 1.3.2.2 lukem * 27 1.3.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 1.3.2.2 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 1.3.2.2 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 1.3.2.2 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 1.3.2.2 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 1.3.2.2 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 1.3.2.2 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 1.3.2.2 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 1.3.2.2 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 1.3.2.2 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 1.3.2.2 lukem * POSSIBILITY OF SUCH DAMAGE. 38 1.3.2.2 lukem */ 39 1.3.2.2 lukem 40 1.3.2.2 lukem /* 41 1.3.2.2 lukem * Copyright (c) 1999, by UCHIYAMA Yasushi 42 1.3.2.2 lukem * All rights reserved. 43 1.3.2.2 lukem * 44 1.3.2.2 lukem * Redistribution and use in source and binary forms, with or without 45 1.3.2.2 lukem * modification, are permitted provided that the following conditions 46 1.3.2.2 lukem * are met: 47 1.3.2.2 lukem * 1. Redistributions of source code must retain the above copyright 48 1.3.2.2 lukem * notice, this list of conditions and the following disclaimer. 49 1.3.2.2 lukem * 2. The name of the developer may NOT be used to endorse or promote products 50 1.3.2.2 lukem * derived from this software without specific prior written permission. 51 1.3.2.2 lukem * 52 1.3.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 53 1.3.2.2 lukem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 1.3.2.2 lukem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 1.3.2.2 lukem * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 56 1.3.2.2 lukem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 1.3.2.2 lukem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 1.3.2.2 lukem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 1.3.2.2 lukem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 1.3.2.2 lukem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 1.3.2.2 lukem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 1.3.2.2 lukem * SUCH DAMAGE. 63 1.3.2.2 lukem */ 64 1.3.2.2 lukem 65 1.3.2.2 lukem /* 66 1.3.2.2 lukem * Support for the SiS 85c503 PCI-ISA bridge interrupt controller. 67 1.3.2.2 lukem */ 68 1.3.2.2 lukem 69 1.3.2.2 lukem #include <sys/cdefs.h> 70 1.3.2.2 lukem __KERNEL_RCSID(0, "$NetBSD: sis85c503.c,v 1.3.2.2 2001/11/15 07:03:36 lukem Exp $"); 71 1.3.2.2 lukem 72 1.3.2.2 lukem #include <sys/param.h> 73 1.3.2.2 lukem #include <sys/systm.h> 74 1.3.2.2 lukem #include <sys/device.h> 75 1.3.2.2 lukem 76 1.3.2.2 lukem #include <machine/intr.h> 77 1.3.2.2 lukem #include <machine/bus.h> 78 1.3.2.2 lukem 79 1.3.2.2 lukem #include <dev/pci/pcivar.h> 80 1.3.2.2 lukem #include <dev/pci/pcireg.h> 81 1.3.2.2 lukem #include <dev/pci/pcidevs.h> 82 1.3.2.2 lukem 83 1.3.2.2 lukem #include <i386/pci/pci_intr_fixup.h> 84 1.3.2.2 lukem #include <i386/pci/sis85c503reg.h> 85 1.3.2.2 lukem #include <i386/pci/piixvar.h> 86 1.3.2.2 lukem 87 1.3.2.2 lukem int sis85c503_getclink __P((pciintr_icu_handle_t, int, int *)); 88 1.3.2.2 lukem int sis85c503_get_intr __P((pciintr_icu_handle_t, int, int *)); 89 1.3.2.2 lukem int sis85c503_set_intr __P((pciintr_icu_handle_t, int, int)); 90 1.3.2.2 lukem 91 1.3.2.2 lukem const struct pciintr_icu sis85c503_pci_icu = { 92 1.3.2.2 lukem sis85c503_getclink, 93 1.3.2.2 lukem sis85c503_get_intr, 94 1.3.2.2 lukem sis85c503_set_intr, 95 1.3.2.2 lukem piix_get_trigger, 96 1.3.2.2 lukem piix_set_trigger, 97 1.3.2.2 lukem }; 98 1.3.2.2 lukem 99 1.3.2.2 lukem int 100 1.3.2.2 lukem sis85c503_init(pc, iot, tag, ptagp, phandp) 101 1.3.2.2 lukem pci_chipset_tag_t pc; 102 1.3.2.2 lukem bus_space_tag_t iot; 103 1.3.2.2 lukem pcitag_t tag; 104 1.3.2.2 lukem pciintr_icu_tag_t *ptagp; 105 1.3.2.2 lukem pciintr_icu_handle_t *phandp; 106 1.3.2.2 lukem { 107 1.3.2.2 lukem 108 1.3.2.2 lukem if (piix_init(pc, iot, tag, ptagp, phandp) == 0) { 109 1.3.2.2 lukem *ptagp = &sis85c503_pci_icu; 110 1.3.2.2 lukem return (0); 111 1.3.2.2 lukem } 112 1.3.2.2 lukem 113 1.3.2.2 lukem return (1); 114 1.3.2.2 lukem } 115 1.3.2.2 lukem 116 1.3.2.2 lukem int 117 1.3.2.2 lukem sis85c503_getclink(v, link, clinkp) 118 1.3.2.2 lukem pciintr_icu_handle_t v; 119 1.3.2.2 lukem int link, *clinkp; 120 1.3.2.2 lukem { 121 1.3.2.2 lukem 122 1.3.2.2 lukem /* Pattern 1: simple. */ 123 1.3.2.2 lukem if (link >= 1 && link <= 4) { 124 1.3.2.2 lukem *clinkp = SIS85C503_CFG_PIRQ_REGSTART + link - 1; 125 1.3.2.2 lukem return (0); 126 1.3.2.2 lukem } 127 1.3.2.2 lukem 128 1.3.2.2 lukem /* Pattern 2: configuration register offset */ 129 1.3.2.2 lukem if (link >= SIS85C503_CFG_PIRQ_REGSTART && 130 1.3.2.2 lukem link <= SIS85C503_CFG_PIRQ_REGEND) { 131 1.3.2.2 lukem *clinkp = link; 132 1.3.2.2 lukem return (0); 133 1.3.2.2 lukem } 134 1.3.2.2 lukem 135 1.3.2.2 lukem return (1); 136 1.3.2.2 lukem } 137 1.3.2.2 lukem 138 1.3.2.2 lukem int 139 1.3.2.2 lukem sis85c503_get_intr(v, clink, irqp) 140 1.3.2.2 lukem pciintr_icu_handle_t v; 141 1.3.2.2 lukem int clink, *irqp; 142 1.3.2.2 lukem { 143 1.3.2.2 lukem struct piix_handle *ph = v; 144 1.3.2.2 lukem pcireg_t reg; 145 1.3.2.2 lukem 146 1.3.2.2 lukem if (SIS85C503_LEGAL_LINK(clink) == 0) 147 1.3.2.2 lukem return (1); 148 1.3.2.2 lukem 149 1.3.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 150 1.3.2.2 lukem SIS85C503_CFG_PIRQ_REGOFS(clink)); 151 1.3.2.2 lukem reg = SIS85C503_CFG_PIRQ_REG(reg, clink); 152 1.3.2.2 lukem 153 1.3.2.2 lukem if (reg & SIS85C503_CFG_PIRQ_ROUTE_DISABLE) 154 1.3.2.2 lukem *irqp = I386_PCI_INTERRUPT_LINE_NO_CONNECTION; 155 1.3.2.2 lukem else 156 1.3.2.2 lukem *irqp = reg & SIS85C503_CFG_PIRQ_INTR_MASK; 157 1.3.2.2 lukem 158 1.3.2.2 lukem return (0); 159 1.3.2.2 lukem } 160 1.3.2.2 lukem 161 1.3.2.2 lukem int 162 1.3.2.2 lukem sis85c503_set_intr(v, clink, irq) 163 1.3.2.2 lukem pciintr_icu_handle_t v; 164 1.3.2.2 lukem int clink, irq; 165 1.3.2.2 lukem { 166 1.3.2.2 lukem struct piix_handle *ph = v; 167 1.3.2.2 lukem int shift; 168 1.3.2.2 lukem pcireg_t reg; 169 1.3.2.2 lukem 170 1.3.2.2 lukem if (SIS85C503_LEGAL_LINK(clink) == 0 || SIS85C503_LEGAL_IRQ(irq) == 0) 171 1.3.2.2 lukem return (1); 172 1.3.2.2 lukem 173 1.3.2.2 lukem reg = pci_conf_read(ph->ph_pc, ph->ph_tag, 174 1.3.2.2 lukem SIS85C503_CFG_PIRQ_REGOFS(clink)); 175 1.3.2.2 lukem shift = SIS85C503_CFG_PIRQ_SHIFT(clink); 176 1.3.2.2 lukem reg &= ~((SIS85C503_CFG_PIRQ_ROUTE_DISABLE | 177 1.3.2.2 lukem SIS85C503_CFG_PIRQ_INTR_MASK) << shift); 178 1.3.2.2 lukem reg |= (irq << shift); 179 1.3.2.2 lukem pci_conf_write(ph->ph_pc, ph->ph_tag, SIS85C503_CFG_PIRQ_REGOFS(clink), 180 1.3.2.2 lukem reg); 181 1.3.2.2 lukem 182 1.3.2.2 lukem return (0); 183 1.3.2.2 lukem } 184
Indexes created Fri Oct 31 11:10:07 GMT 2025