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[Denali] Record SATA device sector size and count.

This commit is contained in:
Drew Galbraith 2023-12-08 15:25:44 -08:00
parent e308d8e120
commit 0375306f5e
2 changed files with 19 additions and 5 deletions
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18
sys/denali/ahci/ahci_port.cpp
View File

@ -55,10 +55,20 @@ glcr::ErrorCode AhciPort::Identify() {
ASSIGN_OR_RETURN(auto* sem, IssueCommand(identify));
sem->Wait();
uint16_t* ident = reinterpret_cast<uint16_t*>(region.vaddr());
uint32_t* sector_size = reinterpret_cast<uint32_t*>(ident + 117);
dbgln("Sector size: {}", *sector_size);
uint64_t* lbas = reinterpret_cast<uint64_t*>(ident + 100);
dbgln("LBA Count: {}", *lbas);
if (ident[106] & (1 << 12)) {
sector_size_ = *reinterpret_cast<uint32_t*>(ident + 117);
} else {
sector_size_ = 512;
}
if (ident[83] & (1 << 10)) {
lba_count_ = *reinterpret_cast<uint64_t*>(ident + 100);
} else {
lba_count_ = *reinterpret_cast<uint32_t*>(ident + 60);
}
dbgln("Sector size: {x}", sector_size_);
dbgln("LBA Count: {x}", lba_count_);
is_init_ = true;
}
return glcr::OK;
}

6
sys/denali/ahci/ahci_port.h
View File

@ -20,7 +20,7 @@ class AhciPort {
void DumpInfo();
bool IsSata() { return port_struct_->signature == 0x101; }
bool IsInit() { return port_struct_ != nullptr && command_structures_; }
bool IsInit() { return is_init_; }
glcr::ErrorCode Identify();
@ -43,5 +43,9 @@ class AhciPort {
glcr::Array<mmth::Semaphore> command_signals_;
uint32_t commands_issued_ = 0;
bool is_init_ = false;
uint64_t lba_count_ = 0;
uint32_t sector_size_ = 0;
glcr::ErrorOr<mmth::Semaphore*> IssueCommand(const CommandInfo& command);
};