1 files changed, 372 insertions, 0 deletions
diff --git a/freebsd/sys/dev/fb/fbd.c b/freebsd/sys/dev/fb/fbd.c
new file mode 100644
index 00000000..60ce4bc3
--- /dev/null
+++ b/freebsd/sys/dev/fb/fbd.c
@@ -0,0 +1,372 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Aleksandr Rybalko under sponsorship from the
+ * FreeBSD Foundation.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/* Generic framebuffer */
+/* TODO unlink from VT(9) */
+/* TODO done normal /dev/fb methods */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/queue.h>
+#include <sys/fbio.h>
+
+#include <machine/bus.h>
+
+#include <dev/vt/vt.h>
+#include <dev/vt/hw/fb/vt_fb.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+#include <rtems/bsd/local/fb_if.h>
+
+LIST_HEAD(fb_list_head_t, fb_list_entry) fb_list_head =
+    LIST_HEAD_INITIALIZER(fb_list_head);
+struct fb_list_entry {
+	struct fb_info	*fb_info;
+	struct cdev	*fb_si;
+	LIST_ENTRY(fb_list_entry) fb_list;
+};
+
+struct fbd_softc {
+	device_t	sc_dev;
+	struct fb_info	*sc_info;
+};
+
+static void fbd_evh_init(void *);
+/* SI_ORDER_SECOND, just after EVENTHANDLERs initialized. */
+SYSINIT(fbd_evh_init, SI_SUB_CONFIGURE, SI_ORDER_SECOND, fbd_evh_init, NULL);
+
+static d_open_t		fb_open;
+static d_close_t	fb_close;
+static d_read_t		fb_read;
+static d_write_t	fb_write;
+static d_ioctl_t	fb_ioctl;
+static d_mmap_t		fb_mmap;
+
+static struct cdevsw fb_cdevsw = {
+	.d_version =	D_VERSION,
+	.d_flags =	D_NEEDGIANT,
+	.d_open =	fb_open,
+	.d_close =	fb_close,
+	.d_read =	fb_read,
+	.d_write =	fb_write,
+	.d_ioctl =	fb_ioctl,
+	.d_mmap =	fb_mmap,
+	.d_name =	"fb",
+};
+
+static int framebuffer_dev_unit = 0;
+
+static int
+fb_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
+{
+
+	return (0);
+}
+
+static int
+fb_close(struct cdev *dev, int fflag, int devtype, struct thread *td)
+{
+
+	return (0);
+}
+
+static int
+fb_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
+    struct thread *td)
+{
+	struct fb_info *info;
+	int error;
+
+	error = 0;
+	info = dev->si_drv1;
+
+	switch (cmd) {
+	case FBIOGTYPE:
+		bcopy(info, (struct fbtype *)data, sizeof(struct fbtype));
+		break;
+
+	case FBIO_GETWINORG:	/* get frame buffer window origin */
+		*(u_int *)data = 0;
+		break;
+
+	case FBIO_GETDISPSTART:	/* get display start address */
+		((video_display_start_t *)data)->x = 0;
+		((video_display_start_t *)data)->y = 0;
+		break;
+
+	case FBIO_GETLINEWIDTH:	/* get scan line width in bytes */
+		*(u_int *)data = info->fb_stride;
+		break;
+
+	case FBIO_BLANK:	/* blank display */
+		if (info->setblankmode != NULL)
+			error = info->setblankmode(info->fb_priv, *(int *)data);
+		break;
+
+	default:
+		error = ENOIOCTL;
+		break;
+	}
+	return (error);
+}
+
+static int
+fb_read(struct cdev *dev, struct uio *uio, int ioflag)
+{
+
+	return (0); /* XXX nothing to read, yet */
+}
+
+static int
+fb_write(struct cdev *dev, struct uio *uio, int ioflag)
+{
+
+	return (0); /* XXX nothing written */
+}
+
+static int
+fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot,
+    vm_memattr_t *memattr)
+{
+	struct fb_info *info;
+
+	info = dev->si_drv1;
+
+	if (info->fb_flags & FB_FLAG_NOMMAP)
+		return (ENODEV);
+
+	if (offset >= 0 && offset < info->fb_size) {
+		if (info->fb_pbase == 0)
+			*paddr = vtophys((uint8_t *)info->fb_vbase + offset);
+		else
+			*paddr = info->fb_pbase + offset;
+		if (info->fb_flags & FB_FLAG_MEMATTR)
+			*memattr = info->fb_memattr;
+		return (0);
+	}
+	return (EINVAL);
+}
+
+static int
+fb_init(struct fb_list_entry *entry, int unit)
+{
+	struct fb_info *info;
+
+	info = entry->fb_info;
+	entry->fb_si = make_dev(&fb_cdevsw, unit, UID_ROOT, GID_WHEEL,
+	    0600, "fb%d", unit);
+	entry->fb_si->si_drv1 = info;
+	info->fb_cdev = entry->fb_si;
+
+	return (0);
+}
+
+int
+fbd_list()
+{
+	struct fb_list_entry *entry;
+
+	if (LIST_EMPTY(&fb_list_head))
+		return (ENOENT);
+
+	LIST_FOREACH(entry, &fb_list_head, fb_list) {
+		printf("FB %s @%p\n", entry->fb_info->fb_name,
+		    (void *)entry->fb_info->fb_pbase);
+	}
+
+	return (0);
+}
+
+static struct fb_list_entry *
+fbd_find(struct fb_info* info)
+{
+	struct fb_list_entry *entry, *tmp;
+
+	LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
+		if (entry->fb_info == info) {
+			return (entry);
+		}
+	}
+
+	return (NULL);
+}
+
+int
+fbd_register(struct fb_info* info)
+{
+	struct fb_list_entry *entry;
+	int err, first;
+
+	first = 0;
+	if (LIST_EMPTY(&fb_list_head))
+		first++;
+
+	entry = fbd_find(info);
+	if (entry != NULL) {
+		/* XXX Update framebuffer params */
+		return (0);
+	}
+
+	entry = malloc(sizeof(struct fb_list_entry), M_DEVBUF, M_WAITOK|M_ZERO);
+	entry->fb_info = info;
+
+	LIST_INSERT_HEAD(&fb_list_head, entry, fb_list);
+
+	err = fb_init(entry, framebuffer_dev_unit++);
+	if (err)
+		return (err);
+	if (first) {
+		err = vt_fb_attach(info);
+		if (err)
+			return (err);
+	}
+
+	return (0);
+}
+
+int
+fbd_unregister(struct fb_info* info)
+{
+	struct fb_list_entry *entry, *tmp;
+
+	LIST_FOREACH_SAFE(entry, &fb_list_head, fb_list, tmp) {
+		if (entry->fb_info == info) {
+			LIST_REMOVE(entry, fb_list);
+			if (LIST_EMPTY(&fb_list_head))
+				vt_fb_detach(info);
+			free(entry, M_DEVBUF);
+			return (0);
+		}
+	}
+
+	return (ENOENT);
+}
+
+static void
+register_fb_wrap(void *arg, void *ptr)
+{
+
+	fbd_register((struct fb_info *)ptr);
+}
+
+static void
+unregister_fb_wrap(void *arg, void *ptr)
+{
+
+	fbd_unregister((struct fb_info *)ptr);
+}
+
+static void
+fbd_evh_init(void *ctx)
+{
+
+	EVENTHANDLER_REGISTER(register_framebuffer, register_fb_wrap, NULL,
+	    EVENTHANDLER_PRI_ANY);
+	EVENTHANDLER_REGISTER(unregister_framebuffer, unregister_fb_wrap, NULL,
+	    EVENTHANDLER_PRI_ANY);
+}
+
+/* Newbus methods. */
+static int
+fbd_probe(device_t dev)
+{
+
+	return (BUS_PROBE_NOWILDCARD);
+}
+
+static int
+fbd_attach(device_t dev)
+{
+	struct fbd_softc *sc;
+	int err;
+
+	sc = device_get_softc(dev);
+
+	sc->sc_dev = dev;
+	sc->sc_info = FB_GETINFO(device_get_parent(dev));
+	if (sc->sc_info == NULL)
+		return (ENXIO);
+	err = fbd_register(sc->sc_info);
+
+	return (err);
+}
+
+static int
+fbd_detach(device_t dev)
+{
+	struct fbd_softc *sc;
+	int err;
+
+	sc = device_get_softc(dev);
+
+	err = fbd_unregister(sc->sc_info);
+
+	return (err);
+}
+
+static device_method_t fbd_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		fbd_probe),
+	DEVMETHOD(device_attach,	fbd_attach),
+	DEVMETHOD(device_detach,	fbd_detach),
+
+	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
+
+	{ 0, 0 }
+};
+
+driver_t fbd_driver = {
+	"fbd",
+	fbd_methods,
+	sizeof(struct fbd_softc)
+};
+
+devclass_t	fbd_devclass;
+
+DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0);
+DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0);
+DRIVER_MODULE(fbd, udl, fbd_driver, fbd_devclass, 0, 0);
+MODULE_VERSION(fbd, 1);
+