feat(fb): add fb2

Author: RossComputerGuy

libdrm/types/mode/fb.zig

@@ -53,3 +53,50 @@ pub const ModeFbCmd = extern struct {
         };
     }
 };
+
+pub const ModeFbCmd2 = extern struct {
+    fbId: u32 = 0,
+    width: u32 = 0,
+    height: u32 = 0,
+    pixelFormat: u32 = 0,
+    flags: Flags = .{},
+    handles: [4]u32 = undefined,
+    pitches: [4]u32 = undefined,
+    offsets: [4]u32 = undefined,
+    modifiers: [4]u64 = undefined,
+
+    pub const reqAdd = os.IOCTL.IOWR(0xB8, ModeFbCmd2);
+    pub const reqGet = os.IOCTL.IOWR(0xCE, ModeFbCmd2);
+
+    pub fn get(self: *ModeFbCmd2, fd: std.os.fd_t) !void {
+        return switch (std.os.errno(os.ioctl(fd, reqGet, @intFromPtr(self)))) {
+            .SUCCESS => {},
+            .BADF => error.NotOpenForWriting,
+            .NOENT => error.NotFound,
+            .FAULT => unreachable,
+            .INVAL => unreachable,
+            .NOTTY => error.NotATerminal,
+            .OPNOTSUPP => error.NotSupported,
+            else => |e| std.os.unexpectedErrno(e),
+        };
+    }
+
+    pub fn add(self: *ModeFbCmd2, fd: std.os.fd_t) !void {
+        return switch (std.os.errno(os.ioctl(fd, reqAdd, @intFromPtr(self)))) {
+            .SUCCESS => {},
+            .BADF => error.NotOpenForWriting,
+            .NOENT => error.NotFound,
+            .FAULT => unreachable,
+            .INVAL => unreachable,
+            .NOTTY => error.NotATerminal,
+            .OPNOTSUPP => error.NotSupported,
+            else => |e| std.os.unexpectedErrno(e),
+        };
+    }
+
+    pub const Flags = packed struct(u32) {
+        interlaced: u1 = 0,
+        modifiers: u1 = 0,
+        reserved: u30 = 0,
+    };
+};