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| author | Amlal El Mahrouss <amlal@nekernel.org> | 2025-04-04 08:04:54 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-04-04 08:04:54 +0200 |
| commit | c1a67bfb86ce452383eddfdbe14135935f3ddcb3 (patch) | |
| tree | cc8d6f2b41a081e20ad2a4a30b4430722ff9edde /dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc | |
| parent | f7e742096821e7d0f53f3c3cd1912b5a4987ee92 (diff) | |
| parent | 84f641139c7f28133a0ea44bccb02e9d2ac524d8 (diff) | |
Merge pull request #9 from amlel-el-mahrouss/dev
kernel, storage/pr: merging important patches.
Diffstat (limited to 'dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc')
| -rw-r--r-- | dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc b/dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc index 21d95b5d..f74db6c0 100644 --- a/dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc +++ b/dev/kernel/HALKit/AMD64/Storage/AHCI+Generic.cc @@ -15,6 +15,7 @@ * */ +#include "NewKit/Defines.h" #include <KernelKit/DeviceMgr.h> #include <KernelKit/DriveMgr.h> #include <KernelKit/ProcessScheduler.h> @@ -71,13 +72,13 @@ STATIC Void drv_compute_disk_ahci() noexcept kSATASectorCount = 0UL; /// Normally 512 bytes, but add an additional 512 bytes to make 1 KIB. - const UInt16 kSzIdent = kib_cast(1); + const UInt16 kSzIdent = 256; /// Push it to the stack - UInt8* identify_data ATTRIBUTE(aligned(4096)) = new UInt8[kSzIdent]; + UInt16* identify_data ATTRIBUTE(aligned(4096)) = new UInt16[kSzIdent]; /// Send AHCI command for identification. - drv_std_input_output_ahci<NO, YES, YES>(0, identify_data, kAHCISectorSize, kSzIdent); + drv_std_input_output_ahci<NO, YES, YES>(0, (UInt8*)identify_data, kAHCISectorSize, kSzIdent); /// Extract 48-bit LBA. @@ -90,6 +91,9 @@ STATIC Void drv_compute_disk_ahci() noexcept kSATASectorCount = (identify_data[61] << 16) | identify_data[60]; else kSATASectorCount = lba48_sectors; + + delete[] identify_data; + identify_data = nullptr; } /// @brief Finds a command slot for a HBA port. @@ -140,8 +144,10 @@ STATIC Void drv_std_input_output_ahci(UInt64 lba, UInt8* buffer, SizeT sector_sz /// Offset to specific command slot. command_header += slot; + /// check for command header. MUST_PASS(command_header); + /// 4kb per PRD. constexpr const UInt32 kMaxPRDSize = kib_cast(4); command_header->Cfl = sizeof(FisRegH2D) / sizeof(UInt32); |