/* $NetBSD: igsfb_pci.c,v 1.24 2016/07/14 04:00:46 msaitoh Exp $ */ /* * Copyright (c) 2002, 2003 Valeriy E. Ushakov * 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. */ /* * Integraphics Systems IGA 168x and CyberPro series. */ #include __KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.24 2016/07/14 04:00:46 msaitoh Exp $"); #include #include #include #include #include #include #ifdef __sparc__ /* XXX: this doesn't belong here */ #include #endif #include #include #include #include #include #include #include #include #include #include #include #include static int igsfb_pci_match_by_id(pcireg_t); static int igsfb_pci_map_regs(struct igsfb_devconfig *, bus_space_tag_t, bus_space_tag_t, pci_chipset_tag_t, pcitag_t, pci_product_id_t); static int igsfb_pci_is_console(pci_chipset_tag_t, pcitag_t); static int igsfb_pci_console = 0; static pcitag_t igsfb_pci_constag; static int igsfb_pci_match(device_t, cfdata_t, void *); static void igsfb_pci_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(igsfb_pci, sizeof(struct igsfb_softc), igsfb_pci_match, igsfb_pci_attach, NULL, NULL); static int igsfb_pci_match_by_id(pcireg_t id) { if (PCI_VENDOR(id) != PCI_VENDOR_INTEGRAPHICS) return 0; switch (PCI_PRODUCT(id)) { case PCI_PRODUCT_INTEGRAPHICS_IGA1682: /* FALLTHROUGH */ case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000: /* FALLTHROUGH */ case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2010: return 1; default: return 0; } } int igsfb_pci_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, pci_chipset_tag_t pc, int bus, int device, int function) { struct igsfb_devconfig *dc; pcitag_t tag; pcireg_t id; int ret; tag = pci_make_tag(pc, bus, device, function); id = pci_conf_read(pc, tag, PCI_ID_REG); if (igsfb_pci_match_by_id(id) == 0) return 1; dc = &igsfb_console_dc; if (igsfb_pci_map_regs(dc, iot, memt, pc, tag, PCI_PRODUCT(id)) != 0) return 1; ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags); if (ret) return ret; ret = igsfb_cnattach_subr(dc); if (ret) return ret; igsfb_pci_console = 1; igsfb_pci_constag = tag; return 0; } static int igsfb_pci_is_console(pci_chipset_tag_t pc, pcitag_t tag) { return igsfb_pci_console && !memcmp(&tag, &igsfb_pci_constag, sizeof tag); } static int igsfb_pci_match(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa = aux; return igsfb_pci_match_by_id(pa->pa_id); } static void igsfb_pci_attach(device_t parent, device_t self, void *aux) { struct igsfb_softc *sc = device_private(self); struct pci_attach_args *pa = aux; int isconsole; sc->sc_dev = self; pci_aprint_devinfo(pa, NULL); #if defined(__sparc__) && !defined(KRUPS_FORCE_SERIAL_CONSOLE) /* XXX: this doesn't belong here */ if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout())) { int b, d, f; pci_decompose_tag(pa->pa_pc, pa->pa_tag, &b, &d, &f); igsfb_pci_cnattach(pa->pa_iot, pa->pa_memt, pa->pa_pc, b,d,f); } #endif isconsole = 0; if (igsfb_pci_is_console(pa->pa_pc, pa->pa_tag)) { sc->sc_dc = &igsfb_console_dc; isconsole = 1; } else { sc->sc_dc = malloc(sizeof(struct igsfb_devconfig), M_DEVBUF, M_NOWAIT | M_ZERO); if (sc->sc_dc == NULL) panic("unable to allocate igsfb_devconfig"); if (igsfb_pci_map_regs(sc->sc_dc, pa->pa_iot, pa->pa_memt, pa->pa_pc, pa->pa_tag, PCI_PRODUCT(pa->pa_id)) != 0) { aprint_error("unable to map device registers\n"); free(sc->sc_dc, M_DEVBUF); sc->sc_dc = NULL; return; } igsfb_enable(sc->sc_dc->dc_iot, sc->sc_dc->dc_iobase, sc->sc_dc->dc_ioflags); } igsfb_attach_subr(sc, isconsole); } /* * Init memory and i/o bus space tags. Map device registers. * Use memory space mapped i/o space access for i/o registers * for CyberPro cards. */ static int igsfb_pci_map_regs(struct igsfb_devconfig *dc, bus_space_tag_t iot, bus_space_tag_t memt, pci_chipset_tag_t pc, pcitag_t tag, pci_product_id_t id) { dc->dc_id = id; /* * Configure memory space first since for CyberPro we use * memory-mapped i/o access. Note that we are NOT mapping any * of it yet. (XXX: search for memory BAR?) */ #define IGS_MEM_MAPREG (PCI_MAPREG_START + 0) dc->dc_memt = memt; if (pci_mapreg_info(pc, tag, IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM, &dc->dc_memaddr, &dc->dc_memsz, &dc->dc_memflags) != 0) { printf("unable to configure memory space\n"); return 1; } /* * Configure I/O space. On CyberPro use MMIO. IGS 168x doesn't * have a BAR for its i/o space, so we have to hardcode it. */ if (id >= PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000) { dc->dc_iot = dc->dc_memt; dc->dc_iobase = dc->dc_memaddr | IGS_MEM_MMIO_SELECT; dc->dc_ioflags = dc->dc_memflags; } else { dc->dc_iot = iot; dc->dc_iobase = 0; dc->dc_ioflags = 0; } /* * Map I/O registers. This is done in bus glue, not in common * code because on e.g. ISA bus we'd need to access registers * to obtain/program linear memory location. */ if (bus_space_map(dc->dc_iot, dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE, dc->dc_ioflags, &dc->dc_ioh) != 0) { printf("unable to map I/O registers\n"); return 1; } return 0; }