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#pragma once
#include <AK/String.h>
#include <AK/Types.h>
#include <Kernel/Devices/BlockDevice.h>
#include <Kernel/VM/PhysicalAddress.h>
class MBVGADevice final : public BlockDevice {
AK_MAKE_ETERNAL
public:
static MBVGADevice& the();
MBVGADevice(PhysicalAddress addr, int pitch, int width, int height);
virtual int ioctl(FileDescription&, unsigned request, unsigned arg) override;
virtual KResultOr<Region*> mmap(Process&, FileDescription&, VirtualAddress preferred_vaddr, size_t offset, size_t, int prot) override;
private:
virtual const char* class_name() const override { return "MBVGA"; }
virtual bool can_read(const FileDescription&) const override { return true; }
virtual bool can_write(const FileDescription&) const override { return true; }
virtual ssize_t read(FileDescription&, u8*, ssize_t) override { return -EINVAL; }
virtual ssize_t write(FileDescription&, const u8*, ssize_t) override { return -EINVAL; }
size_t framebuffer_size_in_bytes() const { return m_framebuffer_pitch * m_framebuffer_height; }
PhysicalAddress m_framebuffer_address;
int m_framebuffer_pitch { 0 };
int m_framebuffer_width { 0 };
int m_framebuffer_height { 0 };
};
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