NetBSD-5.0.2/sys/dev/pci/igsfb_pci.c
/* $NetBSD: igsfb_pci.c,v 1.17 2007/10/19 12:00:50 ad 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: igsfb_pci.c,v 1.17 2007/10/19 12:00:50 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#ifdef __sparc__ /* XXX: this doesn't belong here */
#include <machine/autoconf.h>
#endif
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/rasops/rasops.h>
#include <dev/wscons/wsdisplay_vconsvar.h>
#include <dev/ic/igsfbreg.h>
#include <dev/ic/igsfbvar.h>
#include <dev/pci/igsfb_pcivar.h>
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(struct device *, struct cfdata *, void *);
static void igsfb_pci_attach(struct device *, struct device *, void *);
CFATTACH_DECL(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(struct device *parent, struct cfdata *match, void *aux)
{
struct pci_attach_args *pa = aux;
return igsfb_pci_match_by_id(pa->pa_id);
}
static void
igsfb_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct igsfb_softc *sc = (struct igsfb_softc *)self;
struct pci_attach_args *pa = aux;
int isconsole;
char devinfo[256];
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
#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)
{
printf("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;
}