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-rw-r--r--sys/dev/pci/files.pci6
-rw-r--r--sys/dev/pci/vgafb_pci.c301
-rw-r--r--sys/dev/pci/vgafb_pcivar.h38
3 files changed, 344 insertions, 1 deletions
diff --git a/sys/dev/pci/files.pci b/sys/dev/pci/files.pci
index 2b7f5a524d4..f4ad2f30d94 100644
--- a/sys/dev/pci/files.pci
+++ b/sys/dev/pci/files.pci
@@ -1,4 +1,4 @@
-# $OpenBSD: files.pci,v 1.23 1998/09/27 03:38:09 downsj Exp $
+# $OpenBSD: files.pci,v 1.24 1998/09/27 03:55:59 rahnds Exp $
# $NetBSD: files.pci,v 1.20 1996/09/24 17:47:15 christos Exp $
#
# Config.new file and device description for machine-independent PCI code.
@@ -14,6 +14,10 @@ file dev/pci/pci_subr.c pci
attach vga at pci with vga_pci
file dev/pci/vga_pci.c vga_pci needs-flag
+# Generic VGA Framebuffer version
+attach vgafb at pci with vgafb_pci
+file dev/pci/vgafb_pci.c vgafb_pci needs-flag
+
# Adaptec 3940, 2940, and aic78[5678]0 SCSI controllers
# device declaration in sys/conf/files
attach ahc at pci with ahc_pci
diff --git a/sys/dev/pci/vgafb_pci.c b/sys/dev/pci/vgafb_pci.c
new file mode 100644
index 00000000000..ec10ab78a41
--- /dev/null
+++ b/sys/dev/pci/vgafb_pci.c
@@ -0,0 +1,301 @@
+/* $OpenBSD: vgafb_pci.c,v 1.1 1998/09/27 03:55:59 rahnds Exp $ */
+/* $NetBSD: vga_pci.c,v 1.4 1996/12/05 01:39:38 cgd Exp $ */
+
+/*
+ * Copyright (c) 1995, 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
+ * School of Computer Science
+ * Carnegie Mellon University
+ * Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#ifndef i386
+#include <machine/autoconf.h>
+#endif
+#include <machine/pte.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcidevs.h>
+
+#include <dev/ic/vgafbvar.h>
+#include <dev/pci/vgafb_pcivar.h>
+
+struct vgafb_pci_softc {
+ struct device sc_dev;
+
+ pcitag_t sc_pcitag; /* PCI tag, in case we need it. */
+ struct vgafb_config *sc_vc; /* VGA configuration */
+};
+
+#ifdef __BROKEN_INDIRECT_CONFIG
+int vgafb_pci_match __P((struct device *, void *, void *));
+#else
+int vgafb_pci_match __P((struct device *, struct cfdata *, void *));
+#endif
+void vgafb_pci_attach __P((struct device *, struct device *, void *));
+
+int vgafbpcimmap __P((void *, off_t, int));
+int vgafbpciioctl __P((void *, u_long, caddr_t, int, struct proc *));
+
+struct cfattach vgafb_pci_ca = {
+ sizeof(struct vgafb_pci_softc), (cfmatch_t)vgafb_pci_match, vgafb_pci_attach,
+};
+
+pcitag_t vgafb_pci_console_tag;
+struct vgafb_config vgafb_pci_console_vc;
+
+int
+vgafb_pci_match(parent, match, aux)
+ struct device *parent;
+#ifdef __BROKEN_INDIRECT_CONFIG
+ void *match;
+#else
+ struct cfdata *match;
+#endif
+ void *aux;
+{
+ struct pci_attach_args *pa = aux;
+ u_int32_t memaddr, memsize;
+ u_int32_t ioaddr, iosize;
+ int potential;
+
+ potential = 0;
+
+ /*
+ * If it's prehistoric/vga or display/vga, we might match.
+ * For the console device, this is jut a sanity check.
+ */
+ if (PCI_CLASS(pa->pa_class) == PCI_CLASS_PREHISTORIC &&
+ PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_PREHISTORIC_VGA)
+ potential = 1;
+ if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY &&
+ PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_DISPLAY_VGA)
+ potential = 1;
+
+ if (!potential)
+ return (0);
+
+ /* If it's the console, we have a winner! */
+ if (!bcmp(&pa->pa_tag, &vgafb_pci_console_tag, sizeof(pa->pa_tag)))
+ return (1);
+
+ /*
+ * If we might match, make sure that the card actually looks OK.
+ */
+ memaddr=0xb8000; /* default to isa addresses? */
+ ioaddr = 0; /* default to isa addresses? */
+ /* needs to do something like the mem_find
+ * below in the ifdef powerpc code.
+ * should really be done in a machine independant way
+ */
+#ifdef powerpc
+ {
+ int retval;
+ u_int32_t cacheable;
+ pci_chipset_tag_t pc = pa->pa_pc;
+
+ retval = pci_mem_find(pc, pa->pa_tag, 0x10,
+ &memaddr, &memsize, &cacheable);
+ if (retval) {
+ printf(": couldn't find memory region\n");
+ return 0;
+ }
+ printf("vga pci_mem_find returned retval %x A %x S %x C%x\n",
+ retval, memaddr, memsize, cacheable);
+
+{
+ int s;
+ u_int32_t sizedata;
+ /*
+ * Open Firmware (yuck) shuts down devices before entering a
+ * program so we need to bring them back 'online' to respond
+ * to bus accesses... so far this is true on the power.4e.
+ */
+ s = splhigh();
+ sizedata = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
+ sizedata |= (PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE |
+ PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE);
+ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, sizedata);
+ splx(s);
+}
+ ioaddr = 0;
+ }
+#endif
+ if (!vgafb_common_probe(pa->pa_iot, pa->pa_memt,
+ ioaddr, memaddr, memsize))
+ {
+ printf("vgafb_pci_match: common_probe failed\n");
+ return (0);
+ }
+
+ return (1);
+}
+
+void
+vgafb_pci_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct pci_attach_args *pa = aux;
+ struct vgafb_pci_softc *sc = (struct vgafb_pci_softc *)self;
+ struct vgafb_config *vc;
+ u_int32_t memaddr, memsize;
+ u_int32_t ioaddr, iosize;
+ int console;
+
+ memaddr=0xb8000; /* default to isa addresses? */
+ ioaddr = 0; /* default to isa addresses? */
+#ifdef powerpc
+ {
+ int retval;
+ u_int32_t cacheable;
+ pci_chipset_tag_t pc = pa->pa_pc;
+
+ retval = pci_mem_find(pc, pa->pa_tag, 0x10,
+ &memaddr, &memsize, &cacheable);
+ if (retval) {
+ printf(": couldn't find memory region\n");
+ return;
+ }
+ }
+ /* powerpc specific hack */
+{
+ int s;
+ u_int32_t sizedata;
+ pci_chipset_tag_t pc = pa->pa_pc;
+ /*
+ * Open Firmware (yuck) shuts down devices before entering a
+ * program so we need to bring them back 'online' to respond
+ * to bus accesses... so far this is true on the power.4e.
+ */
+ s = splhigh();
+ sizedata = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
+ sizedata |= (PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE |
+ PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE);
+ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, sizedata);
+ splx(s);
+}
+ ioaddr = 0;
+#endif
+ console = (!bcmp(&pa->pa_tag, &vgafb_pci_console_tag, sizeof(pa->pa_tag)));
+ if (console)
+ vc = sc->sc_vc = &vgafb_pci_console_vc;
+ else {
+ vc = sc->sc_vc = (struct vgafb_config *)
+ malloc(sizeof(struct vgafb_config), M_DEVBUF, M_WAITOK);
+
+ /* set up bus-independent VGA configuration */
+ vgafb_common_setup(pa->pa_iot, pa->pa_memt, vc,
+ ioaddr, memaddr, memsize);
+ }
+ vc->vc_mmap = vgafbpcimmap;
+ vc->vc_ioctl = vgafbpciioctl;
+
+ sc->sc_pcitag = pa->pa_tag;
+
+ printf("\n");
+
+ vgafb_wscons_attach(self, vc, console);
+}
+
+void
+vgafb_pci_console(iot, memt, pc, bus, device, function)
+ bus_space_tag_t iot, memt;
+ pci_chipset_tag_t pc;
+ int bus, device, function;
+{
+ struct vgafb_config *vc = &vgafb_pci_console_vc;
+ u_int32_t memaddr, memsize;
+ u_int32_t ioaddr, iosize;
+
+ /* for later recognition */
+ vgafb_pci_console_tag = pci_make_tag(pc, bus, device, function);
+
+/* XXX probe pci before pci bus config? */
+#if 0
+ int retval;
+ u_int32_t cacheable;
+ pci_chipset_tag_t pc = pa->pa_pc;
+
+ retval = pci_mem_find(pc, pa->pa_tag, 0x10,
+ &memaddr, &memsize, &cacheable);
+ if (retval) {
+ printf(": couldn't find memory region\n");
+ return 0;
+ }
+ printf("vga pci_mem_find returned retval %x A %x S %x C%x\n",
+ retval, memaddr, memsize, cacheable);
+
+{
+ int s;
+ u_int32_t sizedata;
+ /*
+ * Open Firmware (yuck) shuts down devices before entering a
+ * program so we need to bring them back 'online' to respond
+ * to bus accesses... so far this is true on the power.4e.
+ */
+ s = splhigh();
+ sizedata = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
+ sizedata |= (PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_IO_ENABLE |
+ PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE);
+ pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, sizedata);
+ splx(s);
+}
+ ioaddr = 0;
+#endif
+
+ /* set up bus-independent VGA configuration */
+ vgafb_common_setup(iot, memt, vc, ioaddr, memaddr, memsize);
+
+ vgafb_wscons_console(vc);
+}
+
+int
+vgafbpciioctl(v, cmd, data, flag, p)
+ void *v;
+ u_long cmd;
+ caddr_t data;
+ int flag;
+ struct proc *p;
+{
+ struct vgafb_pci_softc *sc = v;
+
+ return (vgaioctl(sc->sc_vc, cmd, data, flag, p));
+}
+
+int
+vgafbpcimmap(v, offset, prot)
+ void *v;
+ off_t offset;
+ int prot;
+{
+ struct vgafb_pci_softc *sc = v;
+
+ return (vgammap(sc->sc_vc, offset, prot));
+}
diff --git a/sys/dev/pci/vgafb_pcivar.h b/sys/dev/pci/vgafb_pcivar.h
new file mode 100644
index 00000000000..836dca2897d
--- /dev/null
+++ b/sys/dev/pci/vgafb_pcivar.h
@@ -0,0 +1,38 @@
+/* $OpenBSD: vgafb_pcivar.h,v 1.1 1998/09/27 03:55:59 rahnds Exp $ */
+/* $NetBSD: vga_pcivar.h,v 1.1 1996/11/19 04:38:36 cgd Exp $ */
+
+/*
+ * Copyright (c) 1995, 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
+ * School of Computer Science
+ * Carnegie Mellon University
+ * Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#define DEVICE_IS_VGA_PCI(class, id) \
+ (((PCI_CLASS(class) == PCI_CLASS_DISPLAY && \
+ PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) || \
+ (PCI_CLASS(class) == PCI_CLASS_PREHISTORIC && \
+ PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) ? 1 : 0)
+
+void vgafb_pci_console __P((bus_space_tag_t, bus_space_tag_t,
+ pci_chipset_tag_t, int, int, int));
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 01:38:51 +0000