1c566df45SLoGin use core::{ 2c566df45SLoGin ffi::{c_uint, c_void}, 3c566df45SLoGin mem::MaybeUninit, 4c566df45SLoGin sync::atomic::AtomicBool, 5c566df45SLoGin }; 6c566df45SLoGin 7c566df45SLoGin use alloc::{ 8c566df45SLoGin string::{String, ToString}, 9c566df45SLoGin sync::{Arc, Weak}, 10c566df45SLoGin vec::Vec, 11c566df45SLoGin }; 12c566df45SLoGin use system_error::SystemError; 13c566df45SLoGin use unified_init::macros::unified_init; 14c566df45SLoGin 15c566df45SLoGin use crate::{ 16c566df45SLoGin arch::MMArch, 17c566df45SLoGin driver::{ 18c566df45SLoGin base::{ 19c566df45SLoGin class::Class, 20c566df45SLoGin device::{ 21c566df45SLoGin bus::Bus, device_manager, driver::Driver, Device, DeviceState, DeviceType, IdTable, 22c566df45SLoGin }, 23c566df45SLoGin kobject::{KObjType, KObject, KObjectState, LockedKObjectState}, 24c566df45SLoGin kset::KSet, 25c566df45SLoGin platform::{ 26c566df45SLoGin platform_device::{platform_device_manager, PlatformDevice}, 27c566df45SLoGin platform_driver::{platform_driver_manager, PlatformDriver}, 28c566df45SLoGin CompatibleTable, 29c566df45SLoGin }, 30c566df45SLoGin }, 31c566df45SLoGin tty::serial::serial8250::send_to_default_serial8250_port, 32c566df45SLoGin video::fbdev::base::{fbmem::frame_buffer_manager, FbVisual}, 33c566df45SLoGin }, 34c566df45SLoGin filesystem::{ 35c566df45SLoGin kernfs::KernFSInode, 36c566df45SLoGin sysfs::{file::sysfs_emit_str, Attribute, AttributeGroup, SysFSOpsSupport}, 37c566df45SLoGin vfs::syscall::ModeType, 38c566df45SLoGin }, 39c566df45SLoGin include::bindings::bindings::{ 40c566df45SLoGin multiboot2_get_Framebuffer_info, multiboot2_iter, multiboot_tag_framebuffer_info_t, 41c566df45SLoGin }, 42c566df45SLoGin init::{boot_params, initcall::INITCALL_DEVICE}, 43c566df45SLoGin libs::{ 44c566df45SLoGin align::page_align_up, 45c566df45SLoGin once::Once, 46c566df45SLoGin rwlock::{RwLock, RwLockReadGuard, RwLockWriteGuard}, 47c566df45SLoGin spinlock::SpinLock, 48c566df45SLoGin }, 49c566df45SLoGin mm::{ 50c566df45SLoGin allocator::page_frame::PageFrameCount, no_init::pseudo_map_phys, MemoryManagementArch, 51c566df45SLoGin PhysAddr, VirtAddr, 52c566df45SLoGin }, 53c566df45SLoGin }; 54c566df45SLoGin 55c566df45SLoGin use super::base::{ 56c566df45SLoGin fbmem::FbDevice, BlankMode, BootTimeVideoType, FbAccel, FbActivateFlags, FbId, FbState, FbType, 57c566df45SLoGin FbVModeFlags, FbVarScreenInfo, FbVideoMode, FixedScreenInfo, FrameBuffer, FrameBufferInfo, 58c566df45SLoGin FrameBufferOps, 59c566df45SLoGin }; 60c566df45SLoGin 61c566df45SLoGin /// 当前机器上面是否有vesa帧缓冲区 62c566df45SLoGin static HAS_VESA_FB: AtomicBool = AtomicBool::new(false); 63c566df45SLoGin 64c566df45SLoGin lazy_static! { 65c566df45SLoGin static ref VESAFB_FIX_INFO: RwLock<FixedScreenInfo> = RwLock::new(FixedScreenInfo { 66c566df45SLoGin id: FixedScreenInfo::name2id("VESA VGA"), 67c566df45SLoGin fb_type: FbType::PackedPixels, 68c566df45SLoGin accel: FbAccel::None, 69c566df45SLoGin ..Default::default() 70c566df45SLoGin }); 71c566df45SLoGin static ref VESAFB_DEFINED: RwLock<FbVarScreenInfo> = RwLock::new(FbVarScreenInfo { 72c566df45SLoGin activate: FbActivateFlags::FB_ACTIVATE_NOW, 73c566df45SLoGin height: None, 74c566df45SLoGin width: None, 75c566df45SLoGin right_margin: 32, 76c566df45SLoGin upper_margin: 16, 77c566df45SLoGin lower_margin: 4, 78c566df45SLoGin vsync_len: 4, 79c566df45SLoGin vmode: FbVModeFlags::FB_VMODE_NONINTERLACED, 80c566df45SLoGin 81c566df45SLoGin ..Default::default() 82c566df45SLoGin }); 83c566df45SLoGin } 84c566df45SLoGin 85c566df45SLoGin #[derive(Debug)] 86c566df45SLoGin #[cast_to([sync] Device)] 87c566df45SLoGin #[cast_to([sync] PlatformDevice)] 88c566df45SLoGin pub struct VesaFb { 89c566df45SLoGin inner: SpinLock<InnerVesaFb>, 90c566df45SLoGin kobj_state: LockedKObjectState, 91c566df45SLoGin } 92c566df45SLoGin 93c566df45SLoGin impl VesaFb { 94c566df45SLoGin pub const NAME: &'static str = "vesa_vga"; 95c566df45SLoGin pub fn new() -> Self { 96c566df45SLoGin return Self { 97c566df45SLoGin inner: SpinLock::new(InnerVesaFb { 98c566df45SLoGin bus: None, 99c566df45SLoGin class: None, 100c566df45SLoGin driver: None, 101c566df45SLoGin kern_inode: None, 102c566df45SLoGin parent: None, 103c566df45SLoGin kset: None, 104c566df45SLoGin kobj_type: None, 105c566df45SLoGin device_state: DeviceState::NotInitialized, 106c566df45SLoGin pdev_id: 0, 107c566df45SLoGin pdev_id_auto: false, 108c566df45SLoGin fb_id: FbId::INIT, 109c566df45SLoGin fb_device: None, 110c566df45SLoGin fb_state: FbState::Suspended, 111c566df45SLoGin }), 112c566df45SLoGin kobj_state: LockedKObjectState::new(None), 113c566df45SLoGin }; 114c566df45SLoGin } 115c566df45SLoGin } 116c566df45SLoGin 117c566df45SLoGin #[derive(Debug)] 118c566df45SLoGin struct InnerVesaFb { 119c566df45SLoGin bus: Option<Weak<dyn Bus>>, 120c566df45SLoGin class: Option<Arc<dyn Class>>, 121c566df45SLoGin driver: Option<Weak<dyn Driver>>, 122c566df45SLoGin kern_inode: Option<Arc<KernFSInode>>, 123c566df45SLoGin parent: Option<Weak<dyn KObject>>, 124c566df45SLoGin kset: Option<Arc<KSet>>, 125c566df45SLoGin kobj_type: Option<&'static dyn KObjType>, 126c566df45SLoGin device_state: DeviceState, 127c566df45SLoGin pdev_id: i32, 128c566df45SLoGin pdev_id_auto: bool, 129c566df45SLoGin fb_id: FbId, 130c566df45SLoGin fb_device: Option<Arc<FbDevice>>, 131c566df45SLoGin fb_state: FbState, 132c566df45SLoGin } 133c566df45SLoGin 134c566df45SLoGin impl FrameBuffer for VesaFb { 135c566df45SLoGin fn fb_id(&self) -> FbId { 136c566df45SLoGin self.inner.lock().fb_id 137c566df45SLoGin } 138c566df45SLoGin 139c566df45SLoGin fn set_fb_id(&self, id: FbId) { 140c566df45SLoGin self.inner.lock().fb_id = id; 141c566df45SLoGin } 142c566df45SLoGin } 143c566df45SLoGin 144c566df45SLoGin impl PlatformDevice for VesaFb { 145c566df45SLoGin fn pdev_name(&self) -> &str { 146c566df45SLoGin Self::NAME 147c566df45SLoGin } 148c566df45SLoGin 149c566df45SLoGin fn set_pdev_id(&self, id: i32) { 150c566df45SLoGin self.inner.lock().pdev_id = id; 151c566df45SLoGin } 152c566df45SLoGin 153c566df45SLoGin fn set_pdev_id_auto(&self, id_auto: bool) { 154c566df45SLoGin self.inner.lock().pdev_id_auto = id_auto; 155c566df45SLoGin } 156c566df45SLoGin 157c566df45SLoGin fn compatible_table(&self) -> CompatibleTable { 158c566df45SLoGin todo!() 159c566df45SLoGin } 160c566df45SLoGin 161c566df45SLoGin fn is_initialized(&self) -> bool { 162c566df45SLoGin self.inner.lock().device_state == DeviceState::Initialized 163c566df45SLoGin } 164c566df45SLoGin 165c566df45SLoGin fn set_state(&self, set_state: DeviceState) { 166c566df45SLoGin self.inner.lock().device_state = set_state; 167c566df45SLoGin } 168c566df45SLoGin } 169c566df45SLoGin 170c566df45SLoGin impl Device for VesaFb { 171c566df45SLoGin fn dev_type(&self) -> DeviceType { 172c566df45SLoGin DeviceType::Char 173c566df45SLoGin } 174c566df45SLoGin 175c566df45SLoGin fn id_table(&self) -> IdTable { 176c566df45SLoGin IdTable::new(self.name(), None) 177c566df45SLoGin } 178c566df45SLoGin 179c566df45SLoGin fn bus(&self) -> Option<Weak<dyn Bus>> { 180c566df45SLoGin self.inner.lock().bus.clone() 181c566df45SLoGin } 182c566df45SLoGin 183c566df45SLoGin fn set_bus(&self, bus: Option<Weak<dyn Bus>>) { 184c566df45SLoGin self.inner.lock().bus = bus; 185c566df45SLoGin } 186c566df45SLoGin 187c566df45SLoGin fn set_class(&self, class: Option<Arc<dyn Class>>) { 188c566df45SLoGin self.inner.lock().class = class; 189c566df45SLoGin } 190c566df45SLoGin 191c566df45SLoGin fn driver(&self) -> Option<Arc<dyn Driver>> { 192c566df45SLoGin self.inner.lock().driver.clone()?.upgrade() 193c566df45SLoGin } 194c566df45SLoGin 195c566df45SLoGin fn set_driver(&self, driver: Option<Weak<dyn Driver>>) { 196c566df45SLoGin self.inner.lock().driver = driver; 197c566df45SLoGin } 198c566df45SLoGin 199c566df45SLoGin fn is_dead(&self) -> bool { 200c566df45SLoGin false 201c566df45SLoGin } 202c566df45SLoGin 203c566df45SLoGin fn can_match(&self) -> bool { 204c566df45SLoGin true 205c566df45SLoGin } 206c566df45SLoGin 207c566df45SLoGin fn set_can_match(&self, _can_match: bool) {} 208c566df45SLoGin 209c566df45SLoGin fn state_synced(&self) -> bool { 210c566df45SLoGin true 211c566df45SLoGin } 212c566df45SLoGin } 213c566df45SLoGin 214c566df45SLoGin impl KObject for VesaFb { 215c566df45SLoGin fn as_any_ref(&self) -> &dyn core::any::Any { 216c566df45SLoGin self 217c566df45SLoGin } 218c566df45SLoGin 219c566df45SLoGin fn set_inode(&self, inode: Option<Arc<KernFSInode>>) { 220c566df45SLoGin self.inner.lock().kern_inode = inode; 221c566df45SLoGin } 222c566df45SLoGin 223c566df45SLoGin fn inode(&self) -> Option<Arc<KernFSInode>> { 224c566df45SLoGin self.inner.lock().kern_inode.clone() 225c566df45SLoGin } 226c566df45SLoGin 227c566df45SLoGin fn parent(&self) -> Option<Weak<dyn KObject>> { 228c566df45SLoGin self.inner.lock().parent.clone() 229c566df45SLoGin } 230c566df45SLoGin 231c566df45SLoGin fn set_parent(&self, parent: Option<Weak<dyn KObject>>) { 232c566df45SLoGin self.inner.lock().parent = parent; 233c566df45SLoGin } 234c566df45SLoGin 235c566df45SLoGin fn kset(&self) -> Option<Arc<KSet>> { 236c566df45SLoGin self.inner.lock().kset.clone() 237c566df45SLoGin } 238c566df45SLoGin 239c566df45SLoGin fn set_kset(&self, kset: Option<Arc<KSet>>) { 240c566df45SLoGin self.inner.lock().kset = kset; 241c566df45SLoGin } 242c566df45SLoGin 243c566df45SLoGin fn kobj_type(&self) -> Option<&'static dyn KObjType> { 244c566df45SLoGin self.inner.lock().kobj_type 245c566df45SLoGin } 246c566df45SLoGin 247c566df45SLoGin fn set_kobj_type(&self, ktype: Option<&'static dyn KObjType>) { 248c566df45SLoGin self.inner.lock().kobj_type = ktype; 249c566df45SLoGin } 250c566df45SLoGin 251c566df45SLoGin fn name(&self) -> String { 252c566df45SLoGin Self::NAME.to_string() 253c566df45SLoGin } 254c566df45SLoGin 255c566df45SLoGin fn set_name(&self, _name: String) { 256c566df45SLoGin // do nothing 257c566df45SLoGin } 258c566df45SLoGin 259c566df45SLoGin fn kobj_state(&self) -> RwLockReadGuard<KObjectState> { 260c566df45SLoGin self.kobj_state.read() 261c566df45SLoGin } 262c566df45SLoGin 263c566df45SLoGin fn kobj_state_mut(&self) -> RwLockWriteGuard<KObjectState> { 264c566df45SLoGin self.kobj_state.write() 265c566df45SLoGin } 266c566df45SLoGin 267c566df45SLoGin fn set_kobj_state(&self, state: KObjectState) { 268c566df45SLoGin *self.kobj_state.write() = state; 269c566df45SLoGin } 270c566df45SLoGin } 271c566df45SLoGin 272c566df45SLoGin impl FrameBufferOps for VesaFb { 273c566df45SLoGin fn fb_open(&self, _user: bool) { 274c566df45SLoGin todo!() 275c566df45SLoGin } 276c566df45SLoGin 277c566df45SLoGin fn fb_release(&self, _user: bool) { 278c566df45SLoGin todo!() 279c566df45SLoGin } 280c566df45SLoGin 281c566df45SLoGin fn fb_set_color_register( 282c566df45SLoGin &self, 283c566df45SLoGin _regno: u16, 284c566df45SLoGin _red: u16, 285c566df45SLoGin _green: u16, 286c566df45SLoGin _blue: u16, 287c566df45SLoGin ) -> Result<(), SystemError> { 288c566df45SLoGin todo!() 289c566df45SLoGin } 290c566df45SLoGin 291c566df45SLoGin fn fb_blank(&self, _blank_mode: BlankMode) -> Result<(), SystemError> { 292c566df45SLoGin todo!() 293c566df45SLoGin } 294c566df45SLoGin 295c566df45SLoGin fn fb_destroy(&self) { 296c566df45SLoGin todo!() 297c566df45SLoGin } 298*02343d0bSLoGin 299*02343d0bSLoGin fn fb_read(&self, buf: &mut [u8], pos: usize) -> Result<usize, SystemError> { 300*02343d0bSLoGin let bp = boot_params().read(); 301*02343d0bSLoGin 302*02343d0bSLoGin let vaddr = bp.screen_info.lfb_virt_base.ok_or(SystemError::ENODEV)?; 303*02343d0bSLoGin let size = self.current_fb_fix().smem_len; 304*02343d0bSLoGin drop(bp); 305*02343d0bSLoGin if pos >= size { 306*02343d0bSLoGin return Ok(0); 307*02343d0bSLoGin } 308*02343d0bSLoGin 309*02343d0bSLoGin let pos = pos as i64; 310*02343d0bSLoGin let size = size as i64; 311*02343d0bSLoGin 312*02343d0bSLoGin let len = core::cmp::min(size - pos, buf.len() as i64) as usize; 313*02343d0bSLoGin 314*02343d0bSLoGin let slice = unsafe { core::slice::from_raw_parts(vaddr.as_ptr::<u8>(), size as usize) }; 315*02343d0bSLoGin buf[..len].copy_from_slice(&slice[pos as usize..(pos as usize + len)]); 316*02343d0bSLoGin 317*02343d0bSLoGin return Ok(len); 318*02343d0bSLoGin } 319*02343d0bSLoGin 320*02343d0bSLoGin fn fb_write(&self, buf: &[u8], pos: usize) -> Result<usize, SystemError> { 321*02343d0bSLoGin let bp = boot_params().read(); 322*02343d0bSLoGin 323*02343d0bSLoGin let vaddr = bp.screen_info.lfb_virt_base.ok_or(SystemError::ENODEV)?; 324*02343d0bSLoGin let size = self.current_fb_fix().smem_len; 325*02343d0bSLoGin 326*02343d0bSLoGin if pos >= size { 327*02343d0bSLoGin return Ok(0); 328*02343d0bSLoGin } 329*02343d0bSLoGin 330*02343d0bSLoGin let pos = pos as i64; 331*02343d0bSLoGin let size = size as i64; 332*02343d0bSLoGin 333*02343d0bSLoGin let len = core::cmp::min(size - pos, buf.len() as i64) as usize; 334*02343d0bSLoGin 335*02343d0bSLoGin let slice = unsafe { core::slice::from_raw_parts_mut(vaddr.as_ptr::<u8>(), size as usize) }; 336*02343d0bSLoGin slice[pos as usize..(pos as usize + len)].copy_from_slice(&buf[..len]); 337*02343d0bSLoGin 338*02343d0bSLoGin return Ok(len); 339*02343d0bSLoGin } 340c566df45SLoGin } 341c566df45SLoGin 342c566df45SLoGin impl FrameBufferInfo for VesaFb { 343c566df45SLoGin fn fb_device(&self) -> Option<Arc<FbDevice>> { 344c566df45SLoGin self.inner.lock().fb_device.clone() 345c566df45SLoGin } 346c566df45SLoGin 347c566df45SLoGin fn set_fb_device(&self, device: Option<Arc<FbDevice>>) { 348c566df45SLoGin self.inner.lock().fb_device = device; 349c566df45SLoGin } 350c566df45SLoGin 351c566df45SLoGin fn screen_size(&self) -> usize { 352c566df45SLoGin todo!() 353c566df45SLoGin } 354c566df45SLoGin 355c566df45SLoGin fn current_fb_var(&self) -> FbVarScreenInfo { 356c566df45SLoGin VESAFB_DEFINED.read().clone() 357c566df45SLoGin } 358c566df45SLoGin 359c566df45SLoGin fn current_fb_fix(&self) -> FixedScreenInfo { 360c566df45SLoGin VESAFB_FIX_INFO.read().clone() 361c566df45SLoGin } 362c566df45SLoGin 363c566df45SLoGin fn video_mode(&self) -> Option<&FbVideoMode> { 364c566df45SLoGin todo!() 365c566df45SLoGin } 366c566df45SLoGin 367c566df45SLoGin fn state(&self) -> FbState { 368c566df45SLoGin self.inner.lock().fb_state 369c566df45SLoGin } 370c566df45SLoGin } 371c566df45SLoGin 372c566df45SLoGin #[derive(Debug)] 373c566df45SLoGin #[cast_to([sync] PlatformDriver)] 374c566df45SLoGin struct VesaFbDriver { 375c566df45SLoGin inner: SpinLock<InnerVesaFbDriver>, 376c566df45SLoGin kobj_state: LockedKObjectState, 377c566df45SLoGin } 378c566df45SLoGin 379c566df45SLoGin impl VesaFbDriver { 380c566df45SLoGin pub fn new() -> Arc<Self> { 381c566df45SLoGin let r = Arc::new(Self { 382c566df45SLoGin inner: SpinLock::new(InnerVesaFbDriver { 383c566df45SLoGin ktype: None, 384c566df45SLoGin kset: None, 385c566df45SLoGin parent: None, 386c566df45SLoGin kernfs_inode: None, 387c566df45SLoGin devices: Vec::new(), 388c566df45SLoGin bus: None, 389c566df45SLoGin self_ref: Weak::new(), 390c566df45SLoGin }), 391c566df45SLoGin kobj_state: LockedKObjectState::new(None), 392c566df45SLoGin }); 393c566df45SLoGin 394c566df45SLoGin r.inner.lock().self_ref = Arc::downgrade(&r); 395c566df45SLoGin 396c566df45SLoGin return r; 397c566df45SLoGin } 398c566df45SLoGin } 399c566df45SLoGin 400c566df45SLoGin #[derive(Debug)] 401c566df45SLoGin struct InnerVesaFbDriver { 402c566df45SLoGin ktype: Option<&'static dyn KObjType>, 403c566df45SLoGin kset: Option<Arc<KSet>>, 404c566df45SLoGin parent: Option<Weak<dyn KObject>>, 405c566df45SLoGin kernfs_inode: Option<Arc<KernFSInode>>, 406c566df45SLoGin devices: Vec<Arc<dyn Device>>, 407c566df45SLoGin bus: Option<Weak<dyn Bus>>, 408c566df45SLoGin 409c566df45SLoGin self_ref: Weak<VesaFbDriver>, 410c566df45SLoGin } 411c566df45SLoGin 412c566df45SLoGin impl VesaFbDriver { 413c566df45SLoGin const NAME: &'static str = "vesa-framebuffer"; 414c566df45SLoGin } 415c566df45SLoGin 416c566df45SLoGin impl PlatformDriver for VesaFbDriver { 417c566df45SLoGin fn probe(&self, device: &Arc<dyn PlatformDevice>) -> Result<(), SystemError> { 418c566df45SLoGin let device = device 419c566df45SLoGin .clone() 420c566df45SLoGin .arc_any() 421c566df45SLoGin .downcast::<VesaFb>() 422c566df45SLoGin .map_err(|_| SystemError::EINVAL)?; 423c566df45SLoGin 424c566df45SLoGin device.set_driver(Some(self.inner.lock_irqsave().self_ref.clone())); 425c566df45SLoGin 426c566df45SLoGin return Ok(()); 427c566df45SLoGin } 428c566df45SLoGin 429c566df45SLoGin fn remove(&self, _device: &Arc<dyn PlatformDevice>) -> Result<(), SystemError> { 430c566df45SLoGin todo!() 431c566df45SLoGin } 432c566df45SLoGin 433c566df45SLoGin fn shutdown(&self, _device: &Arc<dyn PlatformDevice>) -> Result<(), SystemError> { 434c566df45SLoGin // do nothing 435c566df45SLoGin return Ok(()); 436c566df45SLoGin } 437c566df45SLoGin 438c566df45SLoGin fn suspend(&self, _device: &Arc<dyn PlatformDevice>) -> Result<(), SystemError> { 439c566df45SLoGin // do nothing 440c566df45SLoGin return Ok(()); 441c566df45SLoGin } 442c566df45SLoGin 443c566df45SLoGin fn resume(&self, _device: &Arc<dyn PlatformDevice>) -> Result<(), SystemError> { 444c566df45SLoGin todo!() 445c566df45SLoGin } 446c566df45SLoGin } 447c566df45SLoGin 448c566df45SLoGin impl Driver for VesaFbDriver { 449c566df45SLoGin fn id_table(&self) -> Option<IdTable> { 450c566df45SLoGin Some(IdTable::new(VesaFb::NAME.to_string(), None)) 451c566df45SLoGin } 452c566df45SLoGin 453c566df45SLoGin fn devices(&self) -> Vec<Arc<dyn Device>> { 454c566df45SLoGin self.inner.lock().devices.clone() 455c566df45SLoGin } 456c566df45SLoGin 457c566df45SLoGin fn add_device(&self, device: Arc<dyn Device>) { 458c566df45SLoGin let mut guard = self.inner.lock(); 459c566df45SLoGin // check if the device is already in the list 460c566df45SLoGin if guard.devices.iter().any(|dev| Arc::ptr_eq(dev, &device)) { 461c566df45SLoGin return; 462c566df45SLoGin } 463c566df45SLoGin 464c566df45SLoGin guard.devices.push(device); 465c566df45SLoGin } 466c566df45SLoGin 467c566df45SLoGin fn delete_device(&self, device: &Arc<dyn Device>) { 468c566df45SLoGin let mut guard = self.inner.lock(); 469c566df45SLoGin guard.devices.retain(|dev| !Arc::ptr_eq(dev, device)); 470c566df45SLoGin } 471c566df45SLoGin 472c566df45SLoGin fn set_bus(&self, bus: Option<Weak<dyn Bus>>) { 473c566df45SLoGin self.inner.lock().bus = bus; 474c566df45SLoGin } 475c566df45SLoGin 476c566df45SLoGin fn bus(&self) -> Option<Weak<dyn Bus>> { 477c566df45SLoGin self.inner.lock().bus.clone() 478c566df45SLoGin } 479c566df45SLoGin 480c566df45SLoGin fn dev_groups(&self) -> &'static [&'static dyn AttributeGroup] { 481c566df45SLoGin return &[&VesaFbAnonAttributeGroup]; 482c566df45SLoGin } 483c566df45SLoGin } 484c566df45SLoGin 485c566df45SLoGin impl KObject for VesaFbDriver { 486c566df45SLoGin fn as_any_ref(&self) -> &dyn core::any::Any { 487c566df45SLoGin self 488c566df45SLoGin } 489c566df45SLoGin 490c566df45SLoGin fn set_inode(&self, inode: Option<Arc<KernFSInode>>) { 491c566df45SLoGin self.inner.lock().kernfs_inode = inode; 492c566df45SLoGin } 493c566df45SLoGin 494c566df45SLoGin fn inode(&self) -> Option<Arc<KernFSInode>> { 495c566df45SLoGin self.inner.lock().kernfs_inode.clone() 496c566df45SLoGin } 497c566df45SLoGin 498c566df45SLoGin fn parent(&self) -> Option<Weak<dyn KObject>> { 499c566df45SLoGin self.inner.lock().parent.clone() 500c566df45SLoGin } 501c566df45SLoGin 502c566df45SLoGin fn set_parent(&self, parent: Option<Weak<dyn KObject>>) { 503c566df45SLoGin self.inner.lock().parent = parent; 504c566df45SLoGin } 505c566df45SLoGin 506c566df45SLoGin fn kset(&self) -> Option<Arc<KSet>> { 507c566df45SLoGin self.inner.lock().kset.clone() 508c566df45SLoGin } 509c566df45SLoGin 510c566df45SLoGin fn set_kset(&self, kset: Option<Arc<KSet>>) { 511c566df45SLoGin self.inner.lock().kset = kset; 512c566df45SLoGin } 513c566df45SLoGin 514c566df45SLoGin fn kobj_type(&self) -> Option<&'static dyn KObjType> { 515c566df45SLoGin self.inner.lock().ktype 516c566df45SLoGin } 517c566df45SLoGin 518c566df45SLoGin fn set_kobj_type(&self, ktype: Option<&'static dyn KObjType>) { 519c566df45SLoGin self.inner.lock().ktype = ktype; 520c566df45SLoGin } 521c566df45SLoGin 522c566df45SLoGin fn name(&self) -> String { 523c566df45SLoGin Self::NAME.to_string() 524c566df45SLoGin } 525c566df45SLoGin 526c566df45SLoGin fn set_name(&self, _name: String) { 527c566df45SLoGin // do nothing 528c566df45SLoGin } 529c566df45SLoGin 530c566df45SLoGin fn kobj_state(&self) -> RwLockReadGuard<KObjectState> { 531c566df45SLoGin self.kobj_state.read() 532c566df45SLoGin } 533c566df45SLoGin 534c566df45SLoGin fn kobj_state_mut(&self) -> RwLockWriteGuard<KObjectState> { 535c566df45SLoGin self.kobj_state.write() 536c566df45SLoGin } 537c566df45SLoGin 538c566df45SLoGin fn set_kobj_state(&self, state: KObjectState) { 539c566df45SLoGin *self.kobj_state.write() = state; 540c566df45SLoGin } 541c566df45SLoGin } 542c566df45SLoGin 543c566df45SLoGin #[derive(Debug)] 544c566df45SLoGin struct VesaFbAnonAttributeGroup; 545c566df45SLoGin 546c566df45SLoGin impl AttributeGroup for VesaFbAnonAttributeGroup { 547c566df45SLoGin fn name(&self) -> Option<&str> { 548c566df45SLoGin None 549c566df45SLoGin } 550c566df45SLoGin 551c566df45SLoGin fn attrs(&self) -> &[&'static dyn Attribute] { 552c566df45SLoGin &[&AnonAttrPhysAddr as &'static dyn Attribute] 553c566df45SLoGin } 554c566df45SLoGin 555c566df45SLoGin fn is_visible( 556c566df45SLoGin &self, 557c566df45SLoGin _kobj: Arc<dyn KObject>, 558c566df45SLoGin attr: &'static dyn Attribute, 559c566df45SLoGin ) -> Option<ModeType> { 560c566df45SLoGin Some(attr.mode()) 561c566df45SLoGin } 562c566df45SLoGin } 563c566df45SLoGin 564c566df45SLoGin #[derive(Debug)] 565c566df45SLoGin struct AnonAttrPhysAddr; 566c566df45SLoGin 567c566df45SLoGin impl Attribute for AnonAttrPhysAddr { 568c566df45SLoGin fn name(&self) -> &str { 569c566df45SLoGin "smem_start" 570c566df45SLoGin } 571c566df45SLoGin 572c566df45SLoGin fn mode(&self) -> ModeType { 573c566df45SLoGin ModeType::S_IRUGO 574c566df45SLoGin } 575c566df45SLoGin 576c566df45SLoGin fn support(&self) -> SysFSOpsSupport { 577c566df45SLoGin SysFSOpsSupport::SHOW 578c566df45SLoGin } 579c566df45SLoGin 580c566df45SLoGin fn show(&self, _kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> { 581c566df45SLoGin sysfs_emit_str( 582c566df45SLoGin buf, 583c566df45SLoGin format!( 584c566df45SLoGin "0x{:x}\n", 585c566df45SLoGin VESAFB_FIX_INFO 586c566df45SLoGin .read() 587c566df45SLoGin .smem_start 588c566df45SLoGin .unwrap_or(PhysAddr::new(0)) 589c566df45SLoGin .data() 590c566df45SLoGin ) 591c566df45SLoGin .as_str(), 592c566df45SLoGin ) 593c566df45SLoGin } 594c566df45SLoGin } 595c566df45SLoGin 596c566df45SLoGin #[unified_init(INITCALL_DEVICE)] 597c566df45SLoGin pub fn vesa_fb_driver_init() -> Result<(), SystemError> { 598c566df45SLoGin let driver = VesaFbDriver::new(); 599c566df45SLoGin 600c566df45SLoGin platform_driver_manager().register(driver)?; 601c566df45SLoGin 602c566df45SLoGin return Ok(()); 603c566df45SLoGin } 604c566df45SLoGin 605c566df45SLoGin /// 在内存管理初始化之前,初始化vesafb 606c566df45SLoGin pub fn vesafb_early_init() -> Result<VirtAddr, SystemError> { 607c566df45SLoGin let mut _reserved: u32 = 0; 608c566df45SLoGin 609c566df45SLoGin let mut fb_info: MaybeUninit<multiboot_tag_framebuffer_info_t> = MaybeUninit::uninit(); 610c566df45SLoGin //从multiboot2中读取帧缓冲区信息至fb_info 611c566df45SLoGin 612c566df45SLoGin // todo: 换成rust的,并且检测是否成功获取 613c566df45SLoGin unsafe { 614c566df45SLoGin multiboot2_iter( 615c566df45SLoGin Some(multiboot2_get_Framebuffer_info), 616c566df45SLoGin fb_info.as_mut_ptr() as usize as *mut c_void, 617c566df45SLoGin &mut _reserved as *mut c_uint, 618c566df45SLoGin ) 619c566df45SLoGin }; 620c566df45SLoGin unsafe { fb_info.assume_init() }; 621c566df45SLoGin let fb_info: multiboot_tag_framebuffer_info_t = unsafe { core::mem::transmute(fb_info) }; 622c566df45SLoGin 623c566df45SLoGin // todo: 判断是否有vesa帧缓冲区,这里暂时直接设置true 624c566df45SLoGin HAS_VESA_FB.store(true, core::sync::atomic::Ordering::SeqCst); 625c566df45SLoGin 626c566df45SLoGin let width = fb_info.framebuffer_width; 627c566df45SLoGin let height = fb_info.framebuffer_height; 628c566df45SLoGin 629c566df45SLoGin let mut boot_params_guard = boot_params().write(); 630c566df45SLoGin let boottime_screen_info = &mut boot_params_guard.screen_info; 631c566df45SLoGin 632c566df45SLoGin boottime_screen_info.is_vga = true; 633c566df45SLoGin 634c566df45SLoGin boottime_screen_info.lfb_base = PhysAddr::new(fb_info.framebuffer_addr as usize); 635c566df45SLoGin 636c566df45SLoGin if fb_info.framebuffer_type == 2 { 637c566df45SLoGin //当type=2时,width与height用字符数表示,故depth=8 638c566df45SLoGin boottime_screen_info.origin_video_cols = width as u8; 639c566df45SLoGin boottime_screen_info.origin_video_lines = height as u8; 640c566df45SLoGin boottime_screen_info.video_type = BootTimeVideoType::Mda; 641c566df45SLoGin boottime_screen_info.lfb_depth = 8; 642c566df45SLoGin } else { 643c566df45SLoGin //否则为图像模式,depth应参照帧缓冲区信息里面的每个像素的位数 644c566df45SLoGin boottime_screen_info.lfb_width = width; 645c566df45SLoGin boottime_screen_info.lfb_height = height; 646c566df45SLoGin boottime_screen_info.video_type = BootTimeVideoType::Vlfb; 647c566df45SLoGin boottime_screen_info.lfb_depth = fb_info.framebuffer_bpp as u8; 648c566df45SLoGin } 649c566df45SLoGin 650c566df45SLoGin boottime_screen_info.lfb_size = 651c566df45SLoGin (width * height * ((fb_info.framebuffer_bpp as u32 + 7) / 8)) as usize; 652c566df45SLoGin 653c566df45SLoGin let buf_vaddr = VirtAddr::new(0xffff800003200000); 654c566df45SLoGin boottime_screen_info.lfb_virt_base = Some(buf_vaddr); 655c566df45SLoGin 656c566df45SLoGin let init_text = "Video driver to map.\n\0"; 657c566df45SLoGin send_to_default_serial8250_port(init_text.as_bytes()); 658c566df45SLoGin 659c566df45SLoGin // 地址映射 660c566df45SLoGin let paddr = PhysAddr::new(fb_info.framebuffer_addr as usize); 661c566df45SLoGin let count = 662c566df45SLoGin PageFrameCount::new(page_align_up(boottime_screen_info.lfb_size) / MMArch::PAGE_SIZE); 663c566df45SLoGin unsafe { pseudo_map_phys(buf_vaddr, paddr, count) }; 664c566df45SLoGin return Ok(buf_vaddr); 665c566df45SLoGin } 666c566df45SLoGin 667c566df45SLoGin #[unified_init(INITCALL_DEVICE)] 668c566df45SLoGin fn vesa_fb_device_init() -> Result<(), SystemError> { 669c566df45SLoGin // 如果没有vesa帧缓冲区,直接返回 670c566df45SLoGin if !HAS_VESA_FB.load(core::sync::atomic::Ordering::SeqCst) { 671c566df45SLoGin return Ok(()); 672c566df45SLoGin } 673c566df45SLoGin 674c566df45SLoGin static INIT: Once = Once::new(); 675c566df45SLoGin INIT.call_once(|| { 676c566df45SLoGin kinfo!("vesa fb device init"); 677c566df45SLoGin 678c566df45SLoGin let mut fix_info_guard = VESAFB_FIX_INFO.write_irqsave(); 679c566df45SLoGin let mut var_info_guard = VESAFB_DEFINED.write_irqsave(); 680c566df45SLoGin 681c566df45SLoGin let boot_params_guard = boot_params().read(); 682c566df45SLoGin let boottime_screen_info = &boot_params_guard.screen_info; 683c566df45SLoGin 684c566df45SLoGin fix_info_guard.smem_start = Some(boottime_screen_info.lfb_base); 685c566df45SLoGin fix_info_guard.smem_len = boottime_screen_info.lfb_size; 686c566df45SLoGin 687c566df45SLoGin if boottime_screen_info.video_type == BootTimeVideoType::Mda { 688c566df45SLoGin fix_info_guard.visual = FbVisual::Mono10; 689c566df45SLoGin var_info_guard.bits_per_pixel = 8; 690c566df45SLoGin fix_info_guard.line_length = (boottime_screen_info.origin_video_cols as u32) 691c566df45SLoGin * (var_info_guard.bits_per_pixel / 8); 692c566df45SLoGin var_info_guard.xres_virtual = boottime_screen_info.origin_video_cols as u32; 693c566df45SLoGin var_info_guard.yres_virtual = boottime_screen_info.origin_video_lines as u32; 694c566df45SLoGin } else { 695c566df45SLoGin fix_info_guard.visual = FbVisual::TrueColor; 696c566df45SLoGin var_info_guard.bits_per_pixel = boottime_screen_info.lfb_depth as u32; 697c566df45SLoGin fix_info_guard.line_length = 698c566df45SLoGin (boottime_screen_info.lfb_width as u32) * (var_info_guard.bits_per_pixel / 8); 699c566df45SLoGin var_info_guard.xres_virtual = boottime_screen_info.lfb_width as u32; 700c566df45SLoGin var_info_guard.yres_virtual = boottime_screen_info.lfb_height as u32; 701c566df45SLoGin } 702c566df45SLoGin 703c566df45SLoGin drop(var_info_guard); 704c566df45SLoGin drop(fix_info_guard); 705c566df45SLoGin 706c566df45SLoGin let device = Arc::new(VesaFb::new()); 707c566df45SLoGin device_manager().device_default_initialize(&(device.clone() as Arc<dyn Device>)); 708c566df45SLoGin 709c566df45SLoGin platform_device_manager() 710c566df45SLoGin .device_add(device.clone() as Arc<dyn PlatformDevice>) 711c566df45SLoGin .expect("vesa_fb_device_init: platform_device_manager().device_add failed"); 712c566df45SLoGin 713c566df45SLoGin frame_buffer_manager() 714c566df45SLoGin .register_fb(device.clone() as Arc<dyn FrameBuffer>) 715c566df45SLoGin .expect("vesa_fb_device_init: frame_buffer_manager().register_fb failed"); 716c566df45SLoGin 717c566df45SLoGin // 设置vesa fb的状态为运行中 718c566df45SLoGin device.inner.lock().fb_state = FbState::Running; 719c566df45SLoGin }); 720c566df45SLoGin 721c566df45SLoGin return Ok(()); 722c566df45SLoGin } 723