262 lines
6.8 KiB
C
262 lines
6.8 KiB
C
/* $NetBSD: igsfb_pci.c,v 1.24 2016/07/14 04:00:46 msaitoh Exp $ */
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/*
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* Copyright (c) 2002, 2003 Valeriy E. Ushakov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Integraphics Systems IGA 168x and CyberPro series.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.24 2016/07/14 04:00:46 msaitoh Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#ifdef __sparc__ /* XXX: this doesn't belong here */
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#include <machine/autoconf.h>
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#endif
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#include <sys/bus.h>
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#include <sys/intr.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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#include <dev/ic/igsfbreg.h>
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#include <dev/ic/igsfbvar.h>
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#include <dev/pci/igsfb_pcivar.h>
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static int igsfb_pci_match_by_id(pcireg_t);
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static int igsfb_pci_map_regs(struct igsfb_devconfig *,
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bus_space_tag_t, bus_space_tag_t,
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pci_chipset_tag_t,
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pcitag_t, pci_product_id_t);
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static int igsfb_pci_is_console(pci_chipset_tag_t, pcitag_t);
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static int igsfb_pci_console = 0;
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static pcitag_t igsfb_pci_constag;
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static int igsfb_pci_match(device_t, cfdata_t, void *);
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static void igsfb_pci_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(igsfb_pci, sizeof(struct igsfb_softc),
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igsfb_pci_match, igsfb_pci_attach, NULL, NULL);
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static int
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igsfb_pci_match_by_id(pcireg_t id)
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{
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if (PCI_VENDOR(id) != PCI_VENDOR_INTEGRAPHICS)
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return 0;
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switch (PCI_PRODUCT(id)) {
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case PCI_PRODUCT_INTEGRAPHICS_IGA1682: /* FALLTHROUGH */
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case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000: /* FALLTHROUGH */
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case PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2010:
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return 1;
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default:
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return 0;
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}
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}
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int
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igsfb_pci_cnattach(bus_space_tag_t iot, bus_space_tag_t memt,
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pci_chipset_tag_t pc,
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int bus, int device, int function)
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{
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struct igsfb_devconfig *dc;
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pcitag_t tag;
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pcireg_t id;
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int ret;
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tag = pci_make_tag(pc, bus, device, function);
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id = pci_conf_read(pc, tag, PCI_ID_REG);
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if (igsfb_pci_match_by_id(id) == 0)
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return 1;
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dc = &igsfb_console_dc;
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if (igsfb_pci_map_regs(dc, iot, memt, pc, tag, PCI_PRODUCT(id)) != 0)
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return 1;
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ret = igsfb_enable(dc->dc_iot, dc->dc_iobase, dc->dc_ioflags);
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if (ret)
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return ret;
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ret = igsfb_cnattach_subr(dc);
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if (ret)
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return ret;
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igsfb_pci_console = 1;
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igsfb_pci_constag = tag;
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return 0;
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}
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static int
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igsfb_pci_is_console(pci_chipset_tag_t pc, pcitag_t tag)
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{
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return igsfb_pci_console &&
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!memcmp(&tag, &igsfb_pci_constag, sizeof tag);
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}
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static int
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igsfb_pci_match(device_t parent, cfdata_t match, void *aux)
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{
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struct pci_attach_args *pa = aux;
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return igsfb_pci_match_by_id(pa->pa_id);
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}
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static void
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igsfb_pci_attach(device_t parent, device_t self, void *aux)
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{
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struct igsfb_softc *sc = device_private(self);
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struct pci_attach_args *pa = aux;
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int isconsole;
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sc->sc_dev = self;
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pci_aprint_devinfo(pa, NULL);
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#if defined(__sparc__) && !defined(KRUPS_FORCE_SERIAL_CONSOLE)
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/* XXX: this doesn't belong here */
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if (PCITAG_NODE(pa->pa_tag) == prom_instance_to_package(prom_stdout()))
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{
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int b, d, f;
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pci_decompose_tag(pa->pa_pc, pa->pa_tag, &b, &d, &f);
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igsfb_pci_cnattach(pa->pa_iot, pa->pa_memt, pa->pa_pc, b,d,f);
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}
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#endif
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isconsole = 0;
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if (igsfb_pci_is_console(pa->pa_pc, pa->pa_tag)) {
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sc->sc_dc = &igsfb_console_dc;
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isconsole = 1;
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} else {
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sc->sc_dc = malloc(sizeof(struct igsfb_devconfig),
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M_DEVBUF, M_NOWAIT | M_ZERO);
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if (sc->sc_dc == NULL)
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panic("unable to allocate igsfb_devconfig");
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if (igsfb_pci_map_regs(sc->sc_dc,
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pa->pa_iot, pa->pa_memt, pa->pa_pc,
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pa->pa_tag, PCI_PRODUCT(pa->pa_id)) != 0)
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{
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aprint_error("unable to map device registers\n");
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free(sc->sc_dc, M_DEVBUF);
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sc->sc_dc = NULL;
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return;
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}
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igsfb_enable(sc->sc_dc->dc_iot, sc->sc_dc->dc_iobase,
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sc->sc_dc->dc_ioflags);
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}
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igsfb_attach_subr(sc, isconsole);
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}
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/*
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* Init memory and i/o bus space tags. Map device registers.
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* Use memory space mapped i/o space access for i/o registers
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* for CyberPro cards.
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*/
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static int
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igsfb_pci_map_regs(struct igsfb_devconfig *dc,
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bus_space_tag_t iot, bus_space_tag_t memt,
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pci_chipset_tag_t pc, pcitag_t tag,
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pci_product_id_t id)
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{
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dc->dc_id = id;
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/*
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* Configure memory space first since for CyberPro we use
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* memory-mapped i/o access. Note that we are NOT mapping any
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* of it yet. (XXX: search for memory BAR?)
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*/
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#define IGS_MEM_MAPREG (PCI_MAPREG_START + 0)
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dc->dc_memt = memt;
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if (pci_mapreg_info(pc, tag,
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IGS_MEM_MAPREG, PCI_MAPREG_TYPE_MEM,
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&dc->dc_memaddr, &dc->dc_memsz, &dc->dc_memflags) != 0)
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{
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printf("unable to configure memory space\n");
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return 1;
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}
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/*
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* Configure I/O space. On CyberPro use MMIO. IGS 168x doesn't
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* have a BAR for its i/o space, so we have to hardcode it.
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*/
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if (id >= PCI_PRODUCT_INTEGRAPHICS_CYBERPRO2000) {
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dc->dc_iot = dc->dc_memt;
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dc->dc_iobase = dc->dc_memaddr | IGS_MEM_MMIO_SELECT;
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dc->dc_ioflags = dc->dc_memflags;
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} else {
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dc->dc_iot = iot;
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dc->dc_iobase = 0;
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dc->dc_ioflags = 0;
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}
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/*
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* Map I/O registers. This is done in bus glue, not in common
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* code because on e.g. ISA bus we'd need to access registers
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* to obtain/program linear memory location.
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*/
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if (bus_space_map(dc->dc_iot,
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dc->dc_iobase + IGS_REG_BASE, IGS_REG_SIZE,
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dc->dc_ioflags,
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&dc->dc_ioh) != 0)
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{
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printf("unable to map I/O registers\n");
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return 1;
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}
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return 0;
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}
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