use alloc::sync::Arc; use system_error::SystemError; use crate::{ driver::base::kobject::KObject, filesystem::{ sysfs::{file::sysfs_emit_str, Attribute, AttributeGroup, SysFSOpsSupport}, vfs::syscall::ModeType, }, }; use super::fbmem::FbDevice; /// 为FbDevice实现的sysfs属性组 #[derive(Debug)] pub struct FbDeviceAttrGroup; impl AttributeGroup for FbDeviceAttrGroup { fn name(&self) -> Option<&str> { None } fn attrs(&self) -> &[&'static dyn Attribute] { &[ &AttrBitsPerPixel, &AttrBlank, &AttrMode, &AttrModes, &AttrName, &AttrPan, &AttrRotate, &AttrState, &AttrStride, &AttrVirtualSize, ] } fn is_visible( &self, _kobj: alloc::sync::Arc, _attr: &'static dyn Attribute, ) -> Option { None } } #[derive(Debug)] struct AttrName; impl Attribute for AttrName { fn name(&self) -> &str { "name" } fn mode(&self) -> ModeType { ModeType::S_IRUGO } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let name = fb.name(); return sysfs_emit_str(buf, &format!("{}\n", name)); } } #[derive(Debug)] struct AttrBitsPerPixel; impl Attribute for AttrBitsPerPixel { fn name(&self) -> &str { "bits_per_pixel" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { kwarn!("attr bits_per_pixel store not implemented"); return Err(SystemError::ENOSYS); } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let bits_per_pixel = fb.current_fb_var().bits_per_pixel; return sysfs_emit_str(buf, &format!("{}\n", bits_per_pixel)); } } /// 用于清空屏幕的属性 #[derive(Debug)] struct AttrBlank; impl Attribute for AttrBlank { fn name(&self) -> &str { "blank" } fn mode(&self) -> ModeType { ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_STORE } // todo: https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#309 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { kwarn!("attr blank store not implemented"); return Err(SystemError::ENOSYS); } } #[derive(Debug)] struct AttrMode; impl Attribute for AttrMode { fn name(&self) -> &str { "mode" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#166 fn show(&self, _kobj: Arc, _buf: &mut [u8]) -> Result { todo!("AttrMode::show") } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#135 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrMode::store") } } #[derive(Debug)] struct AttrModes; impl Attribute for AttrModes { fn name(&self) -> &str { "modes" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#206 fn show(&self, _kobj: Arc, _buf: &mut [u8]) -> Result { todo!("AttrMode::show") } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#177 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrMode::store") } } #[derive(Debug)] struct AttrPan; impl Attribute for AttrPan { fn name(&self) -> &str { "pan" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let var_info = fb.current_fb_var(); return sysfs_emit_str(buf, &format!("{},{}\n", var_info.xoffset, var_info.yoffset)); } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#365 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrPan::store") } } #[derive(Debug)] struct AttrVirtualSize; impl Attribute for AttrVirtualSize { fn name(&self) -> &str { "virtual_size" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let var_info = fb.current_fb_var(); return sysfs_emit_str( buf, &format!("{},{}\n", var_info.xres_virtual, var_info.yres_virtual), ); } /// https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#273 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrVirtualSize::store") } } #[derive(Debug)] struct AttrStride; impl Attribute for AttrStride { fn name(&self) -> &str { "stride" } fn mode(&self) -> ModeType { ModeType::S_IRUGO } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let fix_info = fb.current_fb_fix(); return sysfs_emit_str(buf, &format!("{}\n", fix_info.line_length)); } } #[derive(Debug)] struct AttrRotate; impl Attribute for AttrRotate { fn name(&self) -> &str { "rotate" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; let var_info = fb.current_fb_var(); return sysfs_emit_str(buf, &format!("{}\n", var_info.rotate_angle)); } /// todo https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#246 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrRotate::store") } } #[derive(Debug)] struct AttrState; impl Attribute for AttrState { fn name(&self) -> &str { "state" } fn mode(&self) -> ModeType { ModeType::S_IRUGO | ModeType::S_IWUSR } fn support(&self) -> SysFSOpsSupport { SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE } fn show(&self, kobj: Arc, buf: &mut [u8]) -> Result { let fb_dev = kobj.arc_any().downcast::().unwrap(); let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?; return sysfs_emit_str(buf, &format!("{}\n", fb.state() as u8)); } /// todo https://code.dragonos.org.cn/xref/linux-6.1.9/drivers/video/fbdev/core/fbsysfs.c#406 fn store(&self, _kobj: Arc, _buf: &[u8]) -> Result { todo!("AttrState::store") } }