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-rw-r--r--dev/Kernel/HALKit/AMD64/Storage/ATA.cc2
-rw-r--r--dev/Kernel/HALKit/AMD64/Storage/SATA.cc44
-rw-r--r--dev/Kernel/src/HardwareThreadScheduler.cc8
3 files changed, 26 insertions, 28 deletions
diff --git a/dev/Kernel/HALKit/AMD64/Storage/ATA.cc b/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
index aea1846d..0e1120a2 100644
--- a/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
+++ b/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
@@ -106,7 +106,7 @@ Boolean drv_std_init(UInt16 Bus, UInt8 Drive, UInt16& OutBus, UInt8& OutMaster)
if (!(kATAData[63] & (1 << 8)) || !(kATAData[88] & 0xFF))
{
kcout << "No DMA support...\r";
- ke_panic(RUNTIME_CHECK_FAILED, "No DMA support on necessry disk driver.");
+ ke_panic(RUNTIME_CHECK_FAILED, "No DMA support on necessry disk driver.");
return false;
}
diff --git a/dev/Kernel/HALKit/AMD64/Storage/SATA.cc b/dev/Kernel/HALKit/AMD64/Storage/SATA.cc
index dc95375d..e989a8b6 100644
--- a/dev/Kernel/HALKit/AMD64/Storage/SATA.cc
+++ b/dev/Kernel/HALKit/AMD64/Storage/SATA.cc
@@ -64,23 +64,23 @@ static Kernel::Void drv_calculate_disk_geometry() noexcept
{
kCurrentDiskSectorCount = 0UL;
- Kernel::UInt8 identify_data[kib_cast(8)] = {};
+ Kernel::UInt8 identify_data[256] = {0};
- drv_std_input_output<NO, YES, YES>(0, identify_data, 0, kib_cast(8));
+ drv_std_input_output<NO, YES, YES>(0, identify_data, 0, 256);
uint32_t lba28_sectors = (identify_data[61] << 16) | identify_data[60];
kCurrentDiskSectorCount = lba28_sectors;
- for (Kernel::Int32 i = 0; i < 40; i += 2)
- {
- Kernel::Char temp = identify_data[54 + i];
- identify_data[54 + i] = identify_data[54 + i + 1];
- identify_data[54 + i + 1] = temp;
+ int i;
+
+ for (i = 0; i < 20; i++)
+ { // 20 words = 40 bytes
+ kModel[i * 2] = identify_data[27 + i] >> 8; // High byte first
+ kModel[i * 2 + 1] = identify_data[27 + i] & 0xFF; // Low byte
}
- Kernel::rt_copy_memory((Kernel::Char*)(identify_data + 54), kModel, 40);
- kModel[40] = '\0';
+ kModel[40] = '\0'; // Null-terminate
kcout << "Disk Model: " << kModel << endl;
kcout << "Disk Size: " << Kernel::number(drv_get_size()) << endl;
@@ -204,9 +204,6 @@ static Kernel::Int32 drv_find_cmd_slot(HbaPort* port) noexcept
template <BOOL Write, BOOL CommandOrCTRL, BOOL Identify>
static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buffer, Kernel::SizeT sector_sz, Kernel::SizeT size_buffer) noexcept
{
- if (!CommandOrCTRL)
- return;
-
auto slot = 0L;
slot = drv_find_cmd_slot(&kSATAPort->Ports[kSATAPortIdx]);
@@ -224,8 +221,7 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
command_header->Cfl = sizeof(FisRegH2D) / sizeof(Kernel::UInt32);
command_header->Write = Write;
- command_header->Prdtl = mib_cast(32) / mib_cast(4);
- command_header->Prdbc = (1 << slot);
+ command_header->Prdtl = (Kernel::UInt16)(kib_cast(8) - 1) >> 4 + 1;
volatile HbaCmdTbl* command_table = (volatile HbaCmdTbl*)((Kernel::UInt64)command_header->Ctba);
@@ -233,13 +229,14 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
MUST_PASS(command_table);
- Kernel::UInt8 ATTRIBUTE(aligned(kib_cast(4))) buffer_ahci[kib_cast(8)] = {0};
+ Kernel::UInt8* buffer_ahci = new Kernel::UInt8[kib_cast(8)];
- command_table->Prdt[0].Dba = (Kernel::UInt32)((Kernel::UInt64)buffer_ahci);
- command_table->Prdt[0].Dbau = (Kernel::UInt32)((Kernel::UInt64)buffer_ahci << 32);
+ Kernel::Int32 i = 0;
- command_table->Prdt[0].Dbc = kib_cast(8) - 1;
- command_table->Prdt[0].InterruptBit = YES; // Ensure Interrupt-On-Completion is set
+ command_table->Prdt[0].Dba = (uint32_t)(uint64_t)buffer_ahci & 0xFFFFFFFF;
+ command_table->Prdt[0].Dbau = (uint32_t)(uint64_t)buffer_ahci >> 32;
+ command_table->Prdt[0].Dbc = (size_buffer << 9) - 1; // 512 bytes per sector
+ command_table->Prdt[0].InterruptBit = 1;
kcout << "LBA: " << Kernel::hex_number(lba) << endl;
kcout << "PRDT Entry - Dba (Low): " << Kernel::hex_number(command_table->Prdt[0].Dba) << endl;
@@ -250,8 +247,8 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
Kernel::rt_set_memory((void*)h2d_fis, 0, sizeof(FisRegH2D));
- h2d_fis->FisType = 0x27;
- h2d_fis->CmdOrCtrl = 1;
+ h2d_fis->FisType = 0x27; // H2D
+ h2d_fis->CmdOrCtrl = CommandOrCTRL;
h2d_fis->Command = Write ? kAHCICmdWriteDmaEx : kAHCICmdReadDmaEx;
@@ -266,7 +263,7 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
h2d_fis->Lba4 = (Kernel::UInt8)(lba >> 32) & 0xFF;
h2d_fis->Lba5 = (Kernel::UInt8)(lba >> 40) & 0xFF;
- h2d_fis->Device = kSataLBAMode;
+ h2d_fis->Device = 0; // master device.
h2d_fis->CountLow = sector_sz & 0xFF;
h2d_fis->CountHigh = (sector_sz >> 8) & 0xFF;
@@ -279,7 +276,7 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
Kernel::UInt32 ahci_status = kSATAPort->Ports[kSATAPortIdx].Tfd;
kcout << "AHCI Status Before Write: " << Kernel::hex_number(ahci_status) << endl;
- kSATAPort->Ports[kSATAPortIdx].Ci |= 1 << slot;
+ kSATAPort->Ports[kSATAPortIdx].Ci = 1 << slot;
while (kSATAPort->Ports[kSATAPortIdx].Ci & (1 << slot))
{
@@ -296,6 +293,7 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff
kcout << "AHCI SERR: " << Kernel::hex_number(kSATAPort->Ports[kSATAPortIdx].Serr) << endl;
Kernel::rt_copy_memory(buffer_ahci, buffer, size_buffer);
+ delete[] buffer_ahci;
}
/***
diff --git a/dev/Kernel/src/HardwareThreadScheduler.cc b/dev/Kernel/src/HardwareThreadScheduler.cc
index 573b86d6..77d9d2dc 100644
--- a/dev/Kernel/src/HardwareThreadScheduler.cc
+++ b/dev/Kernel/src/HardwareThreadScheduler.cc
@@ -61,8 +61,8 @@ namespace Kernel
/***********************************************************************************/
Bool HardwareThread::IsBusy() noexcept
{
- STATIC Int64 busy_timer = 0U;
- STATIC Int64 timeout_max = 0x1000000; // an arbitrary value used to tell if the timeout hasn't been reached yet.
+ STATIC Int64 busy_timer = 0U;
+ STATIC Int64 timeout_max = 0x1000000; // an arbitrary value used to tell if the timeout hasn't been reached yet.
if (fBusy && busy_timer > timeout_max)
{
@@ -112,8 +112,8 @@ namespace Kernel
/***********************************************************************************/
Bool HardwareThread::Switch(VoidPtr image_ptr, Ptr8 stack_ptr, HAL::StackFramePtr frame, const ThreadID& pid)
{
- if (this->IsBusy())
- return NO;
+ if (this->IsBusy())
+ return NO;
this->fStack = frame;
this->fSourcePID = pid;
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