d8e1a7b61a
where it looks straightforward, and pci_aprint_devinfo_fancy in a few
others where drivers want to supply their own device names instead
of the pcidevs generated one. More complicated cases, where names
are composed at runtime, are left alone for now. It certainly makes
sense to simplify the drivers here rather than inventing a catch-all API.
This should serve as as example for new drivers, and also ensure
consistent output in the AB_QUIET ("boot -q") case. Also, it avoids
excessive stack usage where drivers attach child devices because the
buffer for the device name is not kept on the local stack anymore.
262 lines
6.8 KiB
C
262 lines
6.8 KiB
C
/* $NetBSD: igsfb_pci.c,v 1.23 2012/01/30 19:41:21 drochner 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 1.23 2012/01/30 19:41:21 drochner 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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printf("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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