1004e86ffSlogin // 导出 ahci 相关的 module 2004e86ffSlogin pub mod ahci_inode; 3004e86ffSlogin pub mod ahcidisk; 4004e86ffSlogin pub mod hba; 5004e86ffSlogin 6b087521eSChiichen use crate::driver::base::block::disk_info::BLK_GF_AHCI; 7eb49bb99S曾俊 use crate::driver::block::cache::cached_block_device::BlockCache; 8004e86ffSlogin // 依赖的rust工具包 98d94ea66SYJwu2023 use crate::driver::pci::pci::{ 108d94ea66SYJwu2023 get_pci_device_structure_mut, PciDeviceStructure, PCI_DEVICE_LINKEDLIST, 118d94ea66SYJwu2023 }; 12004e86ffSlogin use crate::filesystem::devfs::devfs_register; 13*2eab6dd7S曾俊 14*2eab6dd7S曾俊 use crate::driver::disk::ahci::{ 15004e86ffSlogin ahcidisk::LockedAhciDisk, 16004e86ffSlogin hba::HbaMem, 17004e86ffSlogin hba::{HbaPort, HbaPortType}, 18004e86ffSlogin }; 19*2eab6dd7S曾俊 use crate::libs::rwlock::RwLockWriteGuard; 20*2eab6dd7S曾俊 use crate::libs::spinlock::{SpinLock, SpinLockGuard}; 21*2eab6dd7S曾俊 use crate::mm::virt_2_phys; 22004e86ffSlogin use ahci_inode::LockedAhciInode; 23b5b571e0SLoGin use alloc::{boxed::Box, collections::LinkedList, format, string::String, sync::Arc, vec::Vec}; 248d94ea66SYJwu2023 use core::sync::atomic::compiler_fence; 25*2eab6dd7S曾俊 use log::{debug, error}; 2691e9d4abSLoGin use system_error::SystemError; 27004e86ffSlogin 28004e86ffSlogin // 仅module内可见 全局数据区 hbr_port, disks 29004e86ffSlogin static LOCKED_HBA_MEM_LIST: SpinLock<Vec<&mut HbaMem>> = SpinLock::new(Vec::new()); 30004e86ffSlogin static LOCKED_DISKS_LIST: SpinLock<Vec<Arc<LockedAhciDisk>>> = SpinLock::new(Vec::new()); 31004e86ffSlogin 328d94ea66SYJwu2023 const AHCI_CLASS: u8 = 0x1; 338d94ea66SYJwu2023 const AHCI_SUBCLASS: u8 = 0x6; 348d94ea66SYJwu2023 35004e86ffSlogin /* TFES - Task File Error Status */ 36004e86ffSlogin #[allow(non_upper_case_globals)] 37004e86ffSlogin pub const HBA_PxIS_TFES: u32 = 1 << 30; 38004e86ffSlogin 398d94ea66SYJwu2023 /// @brief 寻找所有的ahci设备 408d94ea66SYJwu2023 /// @param list 链表的写锁 418d94ea66SYJwu2023 /// @return Result<Vec<&'a mut Box<dyn PciDeviceStructure>>, SystemError> 成功则返回包含所有ahci设备结构体的可变引用的链表,失败则返回err 428d94ea66SYJwu2023 fn ahci_device_search<'a>( 438d94ea66SYJwu2023 list: &'a mut RwLockWriteGuard<'_, LinkedList<Box<dyn PciDeviceStructure>>>, 448d94ea66SYJwu2023 ) -> Result<Vec<&'a mut Box<dyn PciDeviceStructure>>, SystemError> { 458d94ea66SYJwu2023 let result = get_pci_device_structure_mut(list, AHCI_CLASS, AHCI_SUBCLASS); 468d94ea66SYJwu2023 478d94ea66SYJwu2023 if result.is_empty() { 488d94ea66SYJwu2023 return Err(SystemError::ENODEV); 498d94ea66SYJwu2023 } 501496ba7bSLoGin 511496ba7bSLoGin return Ok(result); 528d94ea66SYJwu2023 } 538d94ea66SYJwu2023 54004e86ffSlogin /// @brief: 初始化 ahci 551496ba7bSLoGin pub fn ahci_init() -> Result<(), SystemError> { 568d94ea66SYJwu2023 let mut list = PCI_DEVICE_LINKEDLIST.write(); 578d94ea66SYJwu2023 let ahci_device = ahci_device_search(&mut list)?; 58004e86ffSlogin // 全局数据 - 列表 59004e86ffSlogin let mut disks_list = LOCKED_DISKS_LIST.lock(); 60004e86ffSlogin 618d94ea66SYJwu2023 for device in ahci_device { 628d94ea66SYJwu2023 let standard_device = device.as_standard_device_mut().unwrap(); 638d94ea66SYJwu2023 standard_device.bar_ioremap(); 647ae679ddSLoGin // 对于每一个ahci控制器分配一块空间 65004e86ffSlogin let ahci_port_base_vaddr = 66004e86ffSlogin Box::leak(Box::new([0u8; (1 << 20) as usize])) as *mut u8 as usize; 678d94ea66SYJwu2023 let virtaddr = standard_device 688d94ea66SYJwu2023 .bar() 698d94ea66SYJwu2023 .ok_or(SystemError::EACCES)? 708d94ea66SYJwu2023 .get_bar(5) 718d94ea66SYJwu2023 .or(Err(SystemError::EACCES))? 728d94ea66SYJwu2023 .virtual_address() 738d94ea66SYJwu2023 .unwrap(); 74004e86ffSlogin // 最后把这个引用列表放入到全局列表 75004e86ffSlogin let mut hba_mem_list = LOCKED_HBA_MEM_LIST.lock(); 768d94ea66SYJwu2023 //这里两次unsafe转引用规避rust只能有一个可变引用的检查,提高运行速度 772dd9f0c7SLoGin let hba_mem = unsafe { (virtaddr.data() as *mut HbaMem).as_mut().unwrap() }; 782dd9f0c7SLoGin hba_mem_list.push(unsafe { (virtaddr.data() as *mut HbaMem).as_mut().unwrap() }); 798d94ea66SYJwu2023 let pi = volatile_read!(hba_mem.pi); 808d94ea66SYJwu2023 let hba_mem_index = hba_mem_list.len() - 1; 81004e86ffSlogin drop(hba_mem_list); 82004e86ffSlogin // 初始化所有的port 83004e86ffSlogin let mut id = 0; 84004e86ffSlogin for j in 0..32 { 85004e86ffSlogin if (pi >> j) & 1 > 0 { 868d94ea66SYJwu2023 let hba_mem_list = LOCKED_HBA_MEM_LIST.lock(); 878d94ea66SYJwu2023 let hba_mem_port = &mut hba_mem.ports[j]; 888d94ea66SYJwu2023 let tp = hba_mem_port.check_type(); 89004e86ffSlogin match tp { 90004e86ffSlogin HbaPortType::None => { 91*2eab6dd7S曾俊 debug!("<ahci_rust_init> Find a None type Disk."); 92004e86ffSlogin } 93004e86ffSlogin HbaPortType::Unknown(err) => { 94*2eab6dd7S曾俊 debug!("<ahci_rust_init> Find a Unknown({:?}) type Disk.", err); 95004e86ffSlogin } 96004e86ffSlogin _ => { 97*2eab6dd7S曾俊 debug!("<ahci_rust_init> Find a {:?} type Disk.", tp); 98004e86ffSlogin 99004e86ffSlogin // 计算地址 100004e86ffSlogin let fb = virt_2_phys(ahci_port_base_vaddr + (32 << 10) + (j << 8)); 101004e86ffSlogin let clb = virt_2_phys(ahci_port_base_vaddr + (j << 10)); 102004e86ffSlogin let ctbas = (0..32) 103004e86ffSlogin .map(|x| { 104004e86ffSlogin virt_2_phys( 105004e86ffSlogin ahci_port_base_vaddr + (40 << 10) + (j << 13) + (x << 8), 106004e86ffSlogin ) as u64 107004e86ffSlogin }) 108004e86ffSlogin .collect::<Vec<_>>(); 109004e86ffSlogin 110004e86ffSlogin // 初始化 port 1118d94ea66SYJwu2023 hba_mem_port.init(clb as u64, fb as u64, &ctbas); 112004e86ffSlogin drop(hba_mem_list); 113004e86ffSlogin compiler_fence(core::sync::atomic::Ordering::SeqCst); 114004e86ffSlogin // 创建 disk 115004e86ffSlogin disks_list.push(LockedAhciDisk::new( 116004e86ffSlogin format!("ahci_disk_{}", id), 117004e86ffSlogin BLK_GF_AHCI, 1188d94ea66SYJwu2023 hba_mem_index as u8, 119004e86ffSlogin j as u8, 120004e86ffSlogin )?); 121004e86ffSlogin id += 1; // ID 从0开始 122004e86ffSlogin 123*2eab6dd7S曾俊 debug!("start register ahci device"); 124004e86ffSlogin 125004e86ffSlogin // 挂载到devfs上面去 126004e86ffSlogin let ret = devfs_register( 127004e86ffSlogin format!("ahci_{}", id).as_str(), 128004e86ffSlogin LockedAhciInode::new(disks_list.last().unwrap().clone()), 129004e86ffSlogin ); 130004e86ffSlogin if let Err(err) = ret { 131*2eab6dd7S曾俊 error!( 132676b8ef6SMork "Ahci_{} ctrl = {}, port = {} failed to register, error code = {:?}", 133004e86ffSlogin id, 1348d94ea66SYJwu2023 hba_mem_index as u8, 135004e86ffSlogin j, 136004e86ffSlogin err 137004e86ffSlogin ); 138004e86ffSlogin } 139004e86ffSlogin } 140004e86ffSlogin } 141004e86ffSlogin } 142004e86ffSlogin } 143eb49bb99S曾俊 BlockCache::init(); 144004e86ffSlogin } 145004e86ffSlogin 146004e86ffSlogin compiler_fence(core::sync::atomic::Ordering::SeqCst); 147004e86ffSlogin return Ok(()); 148004e86ffSlogin } 149004e86ffSlogin 150004e86ffSlogin /// @brief: 获取所有的 disk 151004e86ffSlogin #[allow(dead_code)] 152004e86ffSlogin pub fn disks() -> Vec<Arc<LockedAhciDisk>> { 153004e86ffSlogin let disks_list = LOCKED_DISKS_LIST.lock(); 154004e86ffSlogin return disks_list.clone(); 155004e86ffSlogin } 156004e86ffSlogin 157004e86ffSlogin /// @brief: 通过 name 获取 disk 158676b8ef6SMork pub fn get_disks_by_name(name: String) -> Result<Arc<LockedAhciDisk>, SystemError> { 159004e86ffSlogin let disks_list: SpinLockGuard<Vec<Arc<LockedAhciDisk>>> = LOCKED_DISKS_LIST.lock(); 1608d94ea66SYJwu2023 let result = disks_list 1618d94ea66SYJwu2023 .iter() 1628d94ea66SYJwu2023 .find(|x| x.0.lock().name == name) 1638d94ea66SYJwu2023 .ok_or(SystemError::ENXIO)? 1648d94ea66SYJwu2023 .clone(); 1658d94ea66SYJwu2023 return Ok(result); 166004e86ffSlogin } 167004e86ffSlogin 168004e86ffSlogin /// @brief: 通过 ctrl_num 和 port_num 获取 port 1698d94ea66SYJwu2023 fn _port(ctrl_num: u8, port_num: u8) -> &'static mut HbaPort { 170004e86ffSlogin let list: SpinLockGuard<Vec<&mut HbaMem>> = LOCKED_HBA_MEM_LIST.lock(); 171004e86ffSlogin let port: &HbaPort = &list[ctrl_num as usize].ports[port_num as usize]; 1728d94ea66SYJwu2023 173004e86ffSlogin return unsafe { (port as *const HbaPort as *mut HbaPort).as_mut().unwrap() }; 174004e86ffSlogin } 175