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authormsmith <msmith@FreeBSD.org>2000-12-08 22:11:23 +0000
committermsmith <msmith@FreeBSD.org>2000-12-08 22:11:23 +0000
commitc27f2d3c492a3d78680bb4c52f0be2c345735e1d (patch)
treeab8e18698d3c3ee4b4443c78e8ba86065bed1ff3 /sys/dev/pci/vga_pci.c
parent3e12cdd63653239c3c71bf1e7042f1149134e630 (diff)
downloadFreeBSD-src-c27f2d3c492a3d78680bb4c52f0be2c345735e1d.zip
FreeBSD-src-c27f2d3c492a3d78680bb4c52f0be2c345735e1d.tar.gz
Next phase in the PCI subsystem cleanup.
- Move PCI core code to dev/pci. - Split bridge code out into separate modules. - Remove the descriptive strings from the bridge drivers. If you want to know what a device is, use pciconf. Add support for broadly identifying devices based on class/subclass, and for parsing a preloaded device identification database so that if you want to waste the memory, you can identify *anything* we know about. - Remove machine-dependant code from the core PCI code. APIC interrupt mapping is performed by shadowing the intline register in machine- dependant code. - Bring interrupt routing support to the Alpha (although many platforms don't yet support routing or mapping interrupts entirely correctly). This resulted in spamming <sys/bus.h> into more places than it really should have gone. - Put sys/dev on the kernel/modules include path. This avoids having to change *all* the pci*.h includes.
Diffstat (limited to 'sys/dev/pci/vga_pci.c')
-rw-r--r--sys/dev/pci/vga_pci.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/dev/pci/vga_pci.c b/sys/dev/pci/vga_pci.c
new file mode 100644
index 0000000..d394769
--- /dev/null
+++ b/sys/dev/pci/vga_pci.c
@@ -0,0 +1,75 @@
+/*-
+ * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
+ * Copyright (c) 2000 BSDi
+ * 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.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Stub handler for PCI VGA-compatible adapters.
+ */
+
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+
+#include <pci/pcivar.h>
+#include <pci/pcireg.h>
+
+static int vga_pci_probe(device_t dev);
+
+static device_method_t vga_pci_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, vga_pci_probe),
+ DEVMETHOD(device_attach, bus_generic_attach),
+
+ { 0, 0 }
+};
+
+static driver_t vga_pci_driver = {
+ "vga_pci",
+ vga_pci_methods,
+ 0,
+};
+
+static devclass_t vga_pci_devclass;
+
+DRIVER_MODULE(vga_pci, pci, vga_pci_driver, vga_pci_devclass, 0, 0);
+
+static int
+vga_pci_probe(device_t dev)
+{
+ if ((pci_get_class(dev) == PCIC_OLD) &&
+ (pci_get_subclass(dev) == PCIS_OLD_VGA)) {
+ device_set_desc(dev, "VGA-compatible display device");
+ return(-10000);
+ }
+ if ((pci_get_class(dev) == PCIC_DISPLAY) &&
+ (pci_get_subclass(dev) == PCIS_DISPLAY_VGA)) {
+ device_set_desc(dev, "VGA-compatible display device");
+ return(-10000);
+ }
+ return(ENXIO);
+}
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