mirror of
https://github.com/SerenityOS/serenity.git
synced 2025-01-24 18:32:28 -05:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/String.h>
|
|
#include <AK/Types.h>
|
|
#include <Kernel/Devices/BlockDevice.h>
|
|
#include <Kernel/PhysicalAddress.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class MBVGADevice final : public BlockDevice {
|
|
AK_MAKE_ETERNAL
|
|
public:
|
|
static MBVGADevice& the();
|
|
|
|
MBVGADevice(PhysicalAddress addr, size_t pitch, size_t width, size_t height);
|
|
|
|
virtual int ioctl(FileDescription&, unsigned request, FlatPtr arg) override;
|
|
virtual KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
|
|
|
|
// ^Device
|
|
virtual mode_t required_mode() const override { return 0660; }
|
|
virtual String device_name() const override;
|
|
|
|
private:
|
|
virtual const char* class_name() const override { return "MBVGA"; }
|
|
virtual bool can_read(const FileDescription&, size_t) const override { return true; }
|
|
virtual bool can_write(const FileDescription&, size_t) const override { return true; }
|
|
virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override { return -EINVAL; }
|
|
virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return -EINVAL; }
|
|
virtual void start_request(AsyncBlockDeviceRequest& request) override { request.complete(AsyncDeviceRequest::Failure); }
|
|
|
|
size_t framebuffer_size_in_bytes() const { return m_framebuffer_pitch * m_framebuffer_height; }
|
|
|
|
PhysicalAddress m_framebuffer_address;
|
|
size_t m_framebuffer_pitch { 0 };
|
|
size_t m_framebuffer_width { 0 };
|
|
size_t m_framebuffer_height { 0 };
|
|
};
|
|
|
|
}
|