/* $OpenBSD: ali1543.c,v 1.6 2023/01/30 10:49:05 jsg Exp $ */ /* $NetBSD: ali1543.c,v 1.2 2001/09/13 14:00:52 tshiozak Exp $ */ /* * Copyright (c) 2001 * HAYAKAWA Koichi. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1999, by UCHIYAMA Yasushi * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. The name of the developer may NOT be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* HAYAKAWA Koichi wrote ALi 1543 PCI ICU code basing on VIA82C586 driver */ #include <sys/param.h> #include <sys/systm.h> #include <machine/intr.h> #include <machine/bus.h> #include <dev/pci/pcivar.h> #include <i386/pci/pcibiosvar.h> #include <i386/pci/piixvar.h> int ali1543_getclink (pciintr_icu_handle_t, int, int *); int ali1543_get_intr (pciintr_icu_handle_t, int, int *); int ali1543_set_intr (pciintr_icu_handle_t, int, int); const struct pciintr_icu ali1543_icu = { ali1543_getclink, ali1543_get_intr, ali1543_set_intr, piix_get_trigger, piix_set_trigger, }; /* * Linux source code (linux/arch/i386/kernel/pci-irq.c) says that the * irq order of ALi PCI ICU is shuffled. */ static const int ali1543_intr_shuffle_get[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 }; static const int ali1543_intr_shuffle_set[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 }; #define ALI1543_IRQ_MASK 0xdefa #define ALI1543_LEGAL_LINK(link) (((link) >= 0) && ((link) <= 7)) #define ALI1543_LEGAL_IRQ(irq) ((1 << (irq)) & ALI1543_IRQ_MASK) #define ALI1543_INTR_CFG_REG 0x48 #define ALI1543_INTR_PIRQA_SHIFT 0 #define ALI1543_INTR_PIRQA_MASK 0x0000000f #define ALI1543_INTR_PIRQB_SHIFT 4 #define ALI1543_INTR_PIRQB_MASK 0x000000f0 #define ALI1543_INTR_PIRQC_SHIFT 8 #define ALI1543_INTR_PIRQC_MASK 0x00000f00 #define ALI1543_INTR_PIRQD_SHIFT 12 #define ALI1543_INTR_PIRQD_MASK 0x0000f000 #define ALI1543_INTR_PIRQ_SHIFT(clink) ((clink)*4) #define ALI1543_INTR_PIRQ_IRQ(reg, clink) \ (((reg) >> ((clink)*4)) & 0x0f) #define ALI1543_PIRQ(reg, clink) \ ali1543_intr_shuffle_get[ALI1543_INTR_PIRQ_IRQ((reg), (clink))] int ali1543_init(pci_chipset_tag_t pc, bus_space_tag_t iot, pcitag_t tag, pciintr_icu_tag_t *ptagp, pciintr_icu_handle_t *phandp) { if (piix_init(pc, iot, tag, ptagp, phandp) == 0) { *ptagp = &ali1543_icu; return (0); } return (1); } int ali1543_getclink(pciintr_icu_handle_t v, int link, int *clinkp) { if (ALI1543_LEGAL_LINK(link - 1)) { *clinkp = link - 1; return (0); } return (1); } int ali1543_get_intr(pciintr_icu_handle_t v, int clink, int *irqp) { struct piix_handle *ph = v; pcireg_t reg; int val; if (ALI1543_LEGAL_LINK(clink) == 0) return (1); reg = pci_conf_read(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG); #ifdef DEBUG_1543 printf("ali1543: PIRQ reg 0x%08x\n", reg); /* XXX debug */ #endif /* DEBUG_1543 */ val = ALI1543_PIRQ(reg, clink); *irqp = (val == 0) ? I386_PCI_INTERRUPT_LINE_NO_CONNECTION : val; return (0); } int ali1543_set_intr(pciintr_icu_handle_t v, int clink, int irq) { struct piix_handle *ph = v; int shift, val; pcireg_t reg; if (ALI1543_LEGAL_LINK(clink) == 0 || ALI1543_LEGAL_IRQ(irq) == 0) return (1); reg = pci_conf_read(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG); ali1543_get_intr(v, clink, &val); shift = ALI1543_INTR_PIRQ_SHIFT(clink); reg &= ~(0x0f << shift); reg |= (ali1543_intr_shuffle_set[irq] << shift); pci_conf_write(ph->ph_pc, ph->ph_tag, ALI1543_INTR_CFG_REG, reg); if (ali1543_get_intr(v, clink, &val) != 0 || val != irq) return (1); return (0); }
