35 lines
706 B
C++
35 lines
706 B
C++
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#include "acpi.h"
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RSDPDescriptor* ACPI::rsd_ptr;
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RSDT* ACPI::rsd_table;
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void ACPI::initialize(){
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// Find the Root System Description Pointer
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ACPI::rsd_ptr = FindRSD();
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// is it valid
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int sum = 0;
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for (int i =0; i < 20 ; i++) {
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sum += ((char*)rsd_ptr)[i];
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}
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printf(" 0x%x sum\n", sum);
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return;
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// Get the Root System Description Table
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RSDT* rootSystemDescriptionTable = getRSDT((RSDPDescriptor *) rsd_ptr);
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auto tableHeader = &rootSystemDescriptionTable->h;
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// do checksum
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sum = 0;
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for(int i = 0; i < tableHeader->Length; i ++) {
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sum += ((char*) tableHeader)[i];
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}
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if( sum != 0)
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printf("Table invalid!");
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}
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