mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
cb46523df0
capability is present as not all devices supported by the agp_i810 driver (such as i915) have the AGP capability. Instead, add an identify routine to the agp_i810 driver that uses the PCI ID to determine if it should create an agp child device.
256 lines
6.7 KiB
C
256 lines
6.7 KiB
C
/*-
|
|
* Copyright (c) 2005 John Baldwin <jhb@FreeBSD.org>
|
|
* 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. Neither the name of the author nor the names of any co-contributors
|
|
* may 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* Simple driver for PCI VGA display devices. Drivers such as agp(4) and
|
|
* drm(4) should attach as children of this device.
|
|
*
|
|
* XXX: The vgapci name is a hack until we somehow merge the isa vga driver
|
|
* in or rename it.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
|
|
static int
|
|
vga_pci_probe(device_t dev)
|
|
{
|
|
|
|
switch (pci_get_class(dev)) {
|
|
case PCIC_DISPLAY:
|
|
break;
|
|
case PCIC_OLD:
|
|
if (pci_get_subclass(dev) != PCIS_OLD_VGA)
|
|
return (ENXIO);
|
|
break;
|
|
default:
|
|
return (ENXIO);
|
|
}
|
|
device_set_desc(dev, "VGA-compatible display");
|
|
return (BUS_PROBE_GENERIC);
|
|
}
|
|
|
|
static int
|
|
vga_pci_attach(device_t dev)
|
|
{
|
|
|
|
bus_generic_probe(dev);
|
|
|
|
/* Always create a drm child for now to make it easier on drm. */
|
|
device_add_child(dev, "drm", -1);
|
|
bus_generic_attach(dev);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
vga_pci_suspend(device_t dev)
|
|
{
|
|
|
|
return (bus_generic_suspend(dev));
|
|
}
|
|
|
|
static int
|
|
vga_pci_resume(device_t dev)
|
|
{
|
|
|
|
return (bus_generic_resume(dev));
|
|
}
|
|
|
|
/* Bus interface. */
|
|
|
|
static int
|
|
vga_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
|
|
{
|
|
|
|
return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result));
|
|
}
|
|
|
|
static int
|
|
vga_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
|
|
{
|
|
|
|
return (EINVAL);
|
|
}
|
|
|
|
static struct resource *
|
|
vga_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
|
|
return (bus_alloc_resource(dev, type, rid, start, end, count, flags));
|
|
}
|
|
|
|
static int
|
|
vga_pci_release_resource(device_t dev, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
|
|
return (bus_release_resource(dev, type, rid, r));
|
|
}
|
|
|
|
/* PCI interface. */
|
|
|
|
static uint32_t
|
|
vga_pci_read_config(device_t dev, device_t child, int reg, int width)
|
|
{
|
|
|
|
return (pci_read_config(dev, reg, width));
|
|
}
|
|
|
|
static void
|
|
vga_pci_write_config(device_t dev, device_t child, int reg,
|
|
uint32_t val, int width)
|
|
{
|
|
|
|
pci_write_config(dev, reg, val, width);
|
|
}
|
|
|
|
static int
|
|
vga_pci_enable_busmaster(device_t dev, device_t child)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_enable_busmaster\n",
|
|
device_get_nameunit(child));
|
|
return (pci_enable_busmaster(dev));
|
|
}
|
|
|
|
static int
|
|
vga_pci_disable_busmaster(device_t dev, device_t child)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_disable_busmaster\n",
|
|
device_get_nameunit(child));
|
|
return (pci_disable_busmaster(dev));
|
|
}
|
|
|
|
static int
|
|
vga_pci_enable_io(device_t dev, device_t child, int space)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_enable_io\n",
|
|
device_get_nameunit(child));
|
|
return (pci_enable_io(dev, space));
|
|
}
|
|
|
|
static int
|
|
vga_pci_disable_io(device_t dev, device_t child, int space)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_disable_io\n",
|
|
device_get_nameunit(child));
|
|
return (pci_disable_io(dev, space));
|
|
}
|
|
|
|
static int
|
|
vga_pci_set_powerstate(device_t dev, device_t child, int state)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_set_powerstate\n",
|
|
device_get_nameunit(child));
|
|
return (pci_set_powerstate(dev, state));
|
|
}
|
|
|
|
static int
|
|
vga_pci_get_powerstate(device_t dev, device_t child)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_get_powerstate\n",
|
|
device_get_nameunit(child));
|
|
return (pci_get_powerstate(dev));
|
|
}
|
|
|
|
static int
|
|
vga_pci_assign_interrupt(device_t dev, device_t child)
|
|
{
|
|
|
|
device_printf(dev, "child %s requested pci_assign_interrupt\n",
|
|
device_get_nameunit(child));
|
|
return (PCI_ASSIGN_INTERRUPT(device_get_parent(dev), dev));
|
|
}
|
|
|
|
static int
|
|
vga_pci_find_extcap(device_t dev, device_t child, int capability,
|
|
int *capreg)
|
|
{
|
|
|
|
return (pci_find_extcap(dev, capability, capreg));
|
|
}
|
|
|
|
static device_method_t vga_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, vga_pci_probe),
|
|
DEVMETHOD(device_attach, vga_pci_attach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, vga_pci_suspend),
|
|
DEVMETHOD(device_resume, vga_pci_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_read_ivar, vga_pci_read_ivar),
|
|
DEVMETHOD(bus_write_ivar, vga_pci_write_ivar),
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
DEVMETHOD(bus_alloc_resource, vga_pci_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, vga_pci_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
|
|
/* PCI interface */
|
|
DEVMETHOD(pci_read_config, vga_pci_read_config),
|
|
DEVMETHOD(pci_write_config, vga_pci_write_config),
|
|
DEVMETHOD(pci_enable_busmaster, vga_pci_enable_busmaster),
|
|
DEVMETHOD(pci_disable_busmaster, vga_pci_disable_busmaster),
|
|
DEVMETHOD(pci_enable_io, vga_pci_enable_io),
|
|
DEVMETHOD(pci_disable_io, vga_pci_disable_io),
|
|
DEVMETHOD(pci_get_powerstate, vga_pci_get_powerstate),
|
|
DEVMETHOD(pci_set_powerstate, vga_pci_set_powerstate),
|
|
DEVMETHOD(pci_assign_interrupt, vga_pci_assign_interrupt),
|
|
DEVMETHOD(pci_find_extcap, vga_pci_find_extcap),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t vga_pci_driver = {
|
|
"vgapci",
|
|
vga_pci_methods,
|
|
1,
|
|
};
|
|
|
|
static devclass_t vga_devclass;
|
|
|
|
DRIVER_MODULE(vgapci, pci, vga_pci_driver, vga_devclass, 0, 0);
|