diff options
| author | Amlal El Mahrouss <amlal@nekernel.org> | 2025-04-05 06:34:10 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-04-05 06:34:10 +0200 |
| commit | b18c5e09961d8bc0b2368176d9fb23789afebb87 (patch) | |
| tree | 0f29fbbe829f4d276b0bc3088138c81157fc4c73 /dev/modules/MBCI | |
| parent | f085fd23cd23edfac585d326786b9a42b04da344 (diff) | |
| parent | 9b7a2a6461a463b08a120c660fcc64b46b65d417 (diff) | |
Merge pull request #11 from amlel-el-mahrouss/dev
pr: a big commit regarding MBCI, AHCI, and others.
Diffstat (limited to 'dev/modules/MBCI')
| -rw-r--r-- | dev/modules/MBCI/MBCI.h | 45 |
1 files changed, 38 insertions, 7 deletions
diff --git a/dev/modules/MBCI/MBCI.h b/dev/modules/MBCI/MBCI.h index 238978d6..ebc73f69 100644 --- a/dev/modules/MBCI/MBCI.h +++ b/dev/modules/MBCI/MBCI.h @@ -7,8 +7,12 @@ #ifndef _INC_MODULE_MBCI_H_ #define _INC_MODULE_MBCI_H_ +#include <hint/CompilerHint.h> #include <NewKit/Defines.h> -#include <Mod/ACPI/ACPI.h> +#include <modules/ACPI/ACPI.h> + +/// @file MBCI.h +/// @brief Mini Bus Controller Interface. /** - VCC (IN) (OUT for MCU) @@ -22,8 +26,9 @@ */ #define kMBCIZeroSz (8) +#define kMBCIESBSz (64) -namespace NeOS +namespace Kernel { struct IMBCIHost; @@ -53,14 +58,15 @@ namespace NeOS UInt64 BaseAddressRegister; UInt64 BaseAddressRegisterSize; UInt32 CommandIssue; - Char Zero[kMBCIZeroSz]; + UInt8 Esb[kMBCIESBSz]; // Extended Signature Block + UInt8 Zero[kMBCIZeroSz]; }; /// @brief MBCI host flags. enum MBCIHostFlags { kMBCIHostFlagsSupportsNothing, // Invalid MBCI device. - kMBCIHostFlagsSupportsAPM, // Advanced Power Management. + kMBCIHostFlagsSupportsAPM, // FW's Advanced Power Management. kMBCIHostFlagsSupportsDaisyChain, // Is daisy chained. kMBCIHostFlagsSupportsHWInterrupts, // Has HW interrupts. kMBCIHostFlagsSupportsDMA, // Has DMA. @@ -93,8 +99,33 @@ namespace NeOS kMBCIHostStateCount, }; - /// @brief An AuthKey is a context used to decrpy data from an MBCI packet. - typedef UInt64 MBCIAuthKeyType; -} // namespace NeOS + /// @brief An AuthKey is a context used to tokenize data for an MBCI packet. + typedef UInt32 MBCIAuthKeyType; + + /// @brief Read Auth key for MBCI host. + /// @param host the mbci host to get the key on. + /// @return the 24-bit key. + inline MBCIAuthKeyType mbci_read_auth_key(_Input volatile struct IMBCIHost* host) + { + constexpr auto const kChallengeMBCI = 0xdeadbeef; + + host->MMIOTest = kChallengeMBCI; + + if (host->MMIOTest == kChallengeMBCI) + { + return (host->Esb[kMBCIESBSz - 1] << 16) | (host->Esb[kMBCIESBSz - 2] << 8) | (host->Esb[kMBCIESBSz - 3] & 0xFF); + } + + return kChallengeMBCI; + } + + inline BOOL mbci_test_mmio(_Input volatile struct IMBCIHost* host) + { + constexpr auto const kChallengeMBCI = 0xdeadbeef; + + host->MMIOTest = kChallengeMBCI; + return host->MMIOTest == kChallengeMBCI; + } +} // namespace Kernel #endif // ifndef _INC_MODULE_MBCI_H_
\ No newline at end of file |