summaryrefslogtreecommitdiffhomepage
path: root/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
diff options
context:
space:
mode:
Diffstat (limited to 'dev/Kernel/HALKit/AMD64/Storage/ATA.cc')
-rw-r--r--dev/Kernel/HALKit/AMD64/Storage/ATA.cc261
1 files changed, 0 insertions, 261 deletions
diff --git a/dev/Kernel/HALKit/AMD64/Storage/ATA.cc b/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
deleted file mode 100644
index 25143a6d..00000000
--- a/dev/Kernel/HALKit/AMD64/Storage/ATA.cc
+++ /dev/null
@@ -1,261 +0,0 @@
-/* -------------------------------------------
-
- Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
-
-------------------------------------------- */
-
-/**
- * @file ATA-PIO.cc
- * @author Amlal EL Mahrouss (amlalelmahrouss@icloud.com)
- * @brief ATA driver (PIO mode).
- * @version 0.1
- * @date 2024-02-02
- *
- * @copyright Copyright (c) Amlal EL Mahrouss
- *
- */
-
-#include <Mod/ATA/ATA.h>
-#include <ArchKit/ArchKit.h>
-
-#if defined(__ATA_PIO__) || defined(__ATA_DMA__)
-
-#define kATADataLen 256
-
-using namespace Kernel;
-using namespace Kernel::HAL;
-
-/// BUGS: 0
-
-STATIC Boolean kATADetected = false;
-STATIC Int32 kATADeviceType = kATADeviceCount;
-STATIC Char kATAData[kATADataLen] = {0};
-
-Boolean drv_std_wait_io(UInt16 IO)
-{
- for (int i = 0; i < 400; i++)
- rt_in8(IO + ATA_REG_STATUS);
-
-ATAWaitForIO_Retry:
- auto rdy = rt_in8(IO + ATA_REG_STATUS);
-
- if ((rdy & ATA_SR_BSY))
- goto ATAWaitForIO_Retry;
-
-ATAWaitForIO_Retry2:
- rdy = rt_in8(IO + ATA_REG_STATUS);
-
- if (rdy & ATA_SR_ERR)
- return false;
-
- if (!(rdy & ATA_SR_DRDY))
- goto ATAWaitForIO_Retry2;
-
- return true;
-}
-
-Void drv_std_select(UInt16 Bus)
-{
- if (Bus == ATA_PRIMARY_IO)
- rt_out8(Bus + ATA_REG_HDDEVSEL, ATA_PRIMARY_SEL);
- else
- rt_out8(Bus + ATA_REG_HDDEVSEL, ATA_SECONDARY_SEL);
-}
-
-Boolean drv_std_init(UInt16 Bus, UInt8 Drive, UInt16& OutBus, UInt8& OutMaster)
-{
- UInt16 IO = Bus;
- drv_std_select(IO);
-
- rt_out8(IO + ATA_REG_NEIN, 1);
-
- // Step 1: Wait until drive is not busy
- int timeout = 100000;
- while ((rt_in8(IO + ATA_REG_STATUS) & ATA_SR_BSY) && --timeout)
- ;
- if (!timeout)
- {
- kout << "Timeout waiting for drive to become ready...\r";
- return false;
- }
-
- // Step 2: Send IDENTIFY command
- rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
-
- // Step 3: Wait for the drive to be ready (not busy)
- drv_std_wait_io(IO);
-
- // Step 4: Check for errors
- UInt8 status = rt_in8(IO + ATA_REG_STATUS);
- if (status & ATA_SR_ERR)
- {
- kout << "ATA Error, aborting...\r";
- return false;
- }
-
- // Step 5: Read IDENTIFY DEVICE response
- for (SizeT indexData = 0UL; indexData < kATADataLen; ++indexData)
- {
- kATAData[indexData] = rt_in16(IO + ATA_REG_DATA);
- }
-
- // Step 6: Set OutBus & OutMaster correctly
- OutBus = (Bus == ATA_PRIMARY_IO) ? ATA_PRIMARY_IO : ATA_SECONDARY_IO;
- OutMaster = (Drive == ATA_MASTER) ? ATA_MASTER : ATA_SLAVE;
-
-#ifdef __ATA_DMA__
- // Step 7: Check if the drive supports DMA
- if (!(kATAData[63] & (1 << 8)) || !(kATAData[88] & 0xFF))
- {
- kout << "No DMA support...\r";
- ke_panic(RUNTIME_CHECK_BOOTSTRAP, "No DMA support on necessary disk driver.");
-
- return false;
- }
-
- // Step 8: Enable DMA Mode
- rt_out8(IO + ATA_REG_FEATURES, 0x03); // Enable DMA mode
- rt_out8(IO + ATA_REG_COMMAND, ATA_REG_SET_FEATURES); // Send set features command
-
- // Step 9: Wait for drive to acknowledge DMA setting
- timeout = 100000;
- while (!(rt_in8(IO + ATA_REG_STATUS) & ATA_SR_DRDY) && --timeout)
- ;
- if (!timeout)
- {
- kout << "DMA Initialization Timeout...\r";
- return false;
- }
-#endif // __ATA_DMA__
-
- kout << "ATA is enabled now.\r";
-
- return YES;
-}
-
-namespace Details
-{
- using namespace Kernel;
-
- struct __attribute__((packed, aligned(4))) PRD final
- {
- UInt32 mAddress;
- UInt16 mByteCount;
- UInt16 mFlags;
- };
-} // namespace Details
-
-Void drv_std_read(UInt64 Lba, UInt16 IO, UInt8 Master, Char* Buf, SizeT SectorSz, SizeT Size)
-{
- Lba /= SectorSz;
-
- UInt8 Command = ((!Master) ? 0xE0 : 0xF0);
-
- drv_std_select(IO);
-
- rt_out8(IO + ATA_REG_HDDEVSEL, (Command) | (((Lba) >> 24) & 0x0F));
-
- rt_out8(IO + ATA_REG_SEC_COUNT0, ((Size + SectorSz - 1) / SectorSz));
-
- rt_out8(IO + ATA_REG_LBA0, (Lba)&0xFF);
- rt_out8(IO + ATA_REG_LBA1, (Lba) >> 8);
- rt_out8(IO + ATA_REG_LBA2, (Lba) >> 16);
- rt_out8(IO + ATA_REG_LBA3, (Lba) >> 24);
-
-#ifdef __ATA_PIO__
- rt_out8(ATA_REG_COMMAND, ATA_CMD_READ_PIO);
-
- for (SizeT IndexOff = 0; IndexOff < Size; ++IndexOff)
- {
- drv_std_wait_io(IO);
- rt_out16(IO + ATA_REG_DATA, Buf[IndexOff]);
- drv_std_wait_io(IO);
- }
-#else
- if (Size > kib_cast(64))
- ke_panic(RUNTIME_CHECK_FAILED, "ATA-DMA only supports < 64kb DMA transfers.");
-
- Details::PRD* prd = (Details::PRD*)mib_cast(4);
- prd->mAddress = (UInt32)(UIntPtr)Buf;
- prd->mByteCount = Size;
- prd->mFlags = 0x8000;
-
- rt_out32(IO + 0x04, (UInt32)(UIntPtr)prd);
-
- rt_out8(IO + 0x00, 0x09); // Start DMA engine
- rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_READ_DMA);
-
- while (rt_in8(ATA_REG_STATUS) & 0x01)
- ;
- rt_out8(IO + 0x00, 0x00); // Start DMA engine
-#endif // __ATA_PIO__
-}
-
-Void drv_std_write(UInt64 Lba, UInt16 IO, UInt8 Master, Char* Buf, SizeT SectorSz, SizeT Size)
-{
- Lba /= SectorSz;
-
- UInt8 Command = ((!Master) ? 0xE0 : 0xF0);
-
- drv_std_select(IO);
-
- rt_out8(IO + ATA_REG_HDDEVSEL, (Command) | (((Lba) >> 24) & 0x0F));
-
- rt_out8(IO + ATA_REG_SEC_COUNT0, ((Size + (SectorSz - 1)) / SectorSz));
-
- rt_out8(IO + ATA_REG_LBA0, (Lba)&0xFF);
- rt_out8(IO + ATA_REG_LBA1, (Lba) >> 8);
- rt_out8(IO + ATA_REG_LBA2, (Lba) >> 16);
- rt_out8(IO + ATA_REG_LBA3, (Lba) >> 24);
-
-#ifdef __ATA_PIO__
- rt_out8(ATA_REG_COMMAND, ATA_CMD_WRITE_PIO);
-
- for (SizeT IndexOff = 0; IndexOff < Size; ++IndexOff)
- {
- drv_std_wait_io(IO);
- rt_out16(IO + ATA_REG_DATA, Buf[IndexOff]);
- drv_std_wait_io(IO);
- }
-#else
- if (Size > kib_cast(64))
- ke_panic(RUNTIME_CHECK_FAILED, "ATA-DMA only supports < 64kb DMA transfers.");
-
- Details::PRD* prd = (Details::PRD*)mib_cast(4);
- prd->mAddress = (UInt32)(UIntPtr)Buf;
- prd->mByteCount = Size;
- prd->mFlags = 0x8000;
-
- rt_out32(IO + 0x04, (UInt32)(UIntPtr)prd);
-
- rt_out8(IO + 0x00, 0x09); // Start DMA engine
- rt_out8(IO + ATA_REG_COMMAND, ATA_CMD_WRITE_DMA);
-
- while (rt_in8(ATA_REG_STATUS) & 0x01)
- ;
-
- rt_out8(IO + 0x00, 0x00); // Start DMA engine
-#endif // __ATA_PIO__
-}
-
-/// @brief is ATA detected?
-Boolean drv_std_detected(Void)
-{
- return kATADetected;
-}
-
-/***
- @brief Getter, gets the number of sectors inside the drive.
-*/
-Kernel::SizeT drv_get_sector_count()
-{
- return (kATAData[61] << 16) | kATAData[60];
-}
-
-/// @brief Get the drive size.
-Kernel::SizeT drv_get_size()
-{
- return (drv_get_sector_count()) * kATASectorSize;
-}
-
-#endif /* ifdef __ATA_PIO__ */
generated by cgit v1.2.3 (git 2.39.1) at 2026-03-26 07:29:33 +0000