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authorIan Moffett <ian@osmora.org>2024-06-24 22:55:29 -0400
committerIan Moffett <ian@osmora.org>2024-06-24 22:55:29 -0400
commit236963e7563be3e3f8220dac7bb4af446928e194 (patch)
treee521ea226db0345bbb3679fffe09d96254b7dc73 /sys/dev/video/fbdev.c
parent214eadc62b5578f76c98a38a28f8b3d80ac4d6ad (diff)
Clean out for expt
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/dev/video/fbdev.c')
-rw-r--r--sys/dev/video/fbdev.c120
1 files changed, 0 insertions, 120 deletions
diff --git a/sys/dev/video/fbdev.c b/sys/dev/video/fbdev.c
deleted file mode 100644
index d9b680f..0000000
--- a/sys/dev/video/fbdev.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
- * 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 Hyra nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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/types.h>
-#include <sys/limine.h>
-#include <sys/device.h>
-#include <sys/driver.h>
-#include <sys/system.h>
-#include <sys/errno.h>
-#include <dev/video/fbdev.h>
-#include <vm/vm.h>
-#include <fs/devfs.h>
-
-#define FRAMEBUFFER \
- framebuffer_req.response->framebuffers[0]
-
-static volatile struct limine_framebuffer_request framebuffer_req = {
- .id = LIMINE_FRAMEBUFFER_REQUEST,
- .revision = 0
-};
-
-static struct device *dev;
-
-static int
-fbdev_ioctl(struct device *dev, uint32_t cmd, uintptr_t arg)
-{
- struct fbdev_info info = {
- .width = FRAMEBUFFER->width,
- .height = FRAMEBUFFER->height,
- .pitch = FRAMEBUFFER->pitch,
- .bits_per_pixel = FRAMEBUFFER->bpp
- };
-
- switch (cmd) {
- case FBIOCTL_INFO:
- copyout(&info, arg, sizeof(info));
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static paddr_t
-fbdev_mmap(struct device *dev, off_t off, vm_prot_t prot)
-{
- struct fbdev fbdev = fbdev_get_front();
- paddr_t len = fbdev.width * fbdev.pitch;
- paddr_t base = VIRT_TO_PHYS(fbdev.mem);
- paddr_t max_paddr = base + len;
-
- if (base + off > max_paddr) {
- return 0;
- }
-
- return base + off;
-}
-
-static int
-fbdev_open(struct device *dev)
-{
- return 0;
-}
-
-struct fbdev
-fbdev_get_front(void)
-{
- struct fbdev ret;
-
- ret.mem = FRAMEBUFFER->address;
- ret.width = FRAMEBUFFER->width;
- ret.height = FRAMEBUFFER->height;
- ret.pitch = FRAMEBUFFER->pitch;
- return ret;
-}
-
-static int
-fbdev_init(void)
-{
- dev = device_alloc();
- dev->blocksize = 1;
- dev->read = NULL;
- dev->write = NULL;
- dev->mmap = fbdev_mmap;
- dev->ioctl = fbdev_ioctl;
- dev->open = fbdev_open;
-
- device_create(dev, device_alloc_major(), 1);
- devfs_add_dev("fb", dev);
- return 0;
-}
-
-DRIVER_EXPORT(fbdev_init);