165 lines
5.0 KiB
C
165 lines
5.0 KiB
C
#include <ddk.h>
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#include <syscall.h>
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#include "acpi.h"
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extern acpi_rsdp_t* acpi_rsdp;
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extern acpi_rsdt_t* acpi_rsdt;
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addr_t acpi_ioapic;
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addr_t acpi_local_apic;
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u8_t __fastcall acpi_table_checksum(u32_t length, u8_t *buffer);
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u8_t __fastcall acpi_table_checksum(u32_t length, u8_t *buffer)
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{
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u8_t sum = 0;
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u8_t *end = buffer + length;
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while (buffer < end)
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{
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sum = (u8_t)(sum + *(buffer++));
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}
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return sum;
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};
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void* acpi_remap_table(addr_t table)
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{
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addr_t ptr;
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if( (table >= acpi_rsdp->rsdt_ptr)&&
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(table < acpi_rsdp->rsdt_ptr+0x10000))
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ptr = (table - acpi_rsdp->rsdt_ptr+(addr_t)acpi_rsdt);
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return (void*)ptr;
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};
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void print_rsdt(acpi_rsdt_t *rsdt)
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{
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u32_t i;
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dbgprintf("ACPI RSD Table\n");
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for (i = 0; i < ((rsdt->header.len-sizeof(acpi_thead_t))/
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sizeof(rsdt->ptrs[0])); i++)
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{
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acpi_thead_t* t = (acpi_thead_t*)acpi_remap_table(rsdt->ptrs[i]);
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char *p = (char*)&t->sig;
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dbgprintf("sig %d: %c%c%c%c base %x\n", i,
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p[0],p[1],p[2],p[3], t);
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};
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};
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void print_madt (acpi_madt_t * madt)
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{
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u32_t i;
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acpi_local_apic = madt->local_apic_addr;
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dbgprintf ("Local APIC at 0x%x\n\n", acpi_local_apic);
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for (i = 0; i < (madt->header.len - sizeof (acpi_madt_t));)
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{
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acpi_madt_hdr_t * h = (acpi_madt_hdr_t*) &madt->data[i];
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switch (h->type)
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{
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case 0:
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{
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// Local APIC
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acpi_madt_lapic_t * lapic = (acpi_madt_lapic_t *) h;
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dbgprintf ("Local APIC ");
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dbgprintf ("[Id: 0x%x, CPU Id: 0x%x, %s]\n",
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lapic->id, lapic->apic_processor_id,
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lapic->flags.enabled ? "enabled" : "disabled");
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break;
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}
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case 1:
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{
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// I/O Apic
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acpi_madt_ioapic_t * ioapic = (acpi_madt_ioapic_t *) h;
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acpi_ioapic = ioapic->address;
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dbgprintf ("I/O APIC ");
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dbgprintf ("[Id: 0x%x, IRQ base: %d, Addr: 0x%x]\n",
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ioapic->id, ioapic->irq_base, acpi_ioapic);
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break;
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}
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case 2:
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{
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// Interrupt Source Override
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acpi_madt_irq_t * irq = (acpi_madt_irq_t *) h;
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polarity_t p = irq_get_polarity(irq);
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trigger_mode_t t = irq_get_trigger_mode(irq);
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dbgprintf ("Interrupt Override ");
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dbgprintf ("[%s, Bus IRQ: %d, Glob IRQ: %d, Pol: %s, Trigger: %s]\n",
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irq->src_bus == 0 ? "ISA" : "unknown bus",
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irq->src_irq, irq->dest,
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p == conform_polarity ? "conform" :
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p == active_high ? "active high" :
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p == active_low ? "active low" : "?",
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t == conform_trigger ? "conform" :
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t == edge ? "edge" :
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t == level ? "level" : "?");
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break;
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}
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case 3:
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{
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// NMI Source
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acpi_madt_nmi_t * nmi = (acpi_madt_nmi_t *) h;
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polarity_t p = nmi_get_polarity(nmi);
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trigger_mode_t t = nmi_get_trigger_mode(nmi);
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dbgprintf ("NMI Source ");
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dbgprintf ("[Glob IRQ: %d, Pol: %s, Trigger: %s]\n",
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nmi->irq,
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p == conform_polarity ? "conform" :
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p == active_high ? "active high" :
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p == active_low ? "active low" : "?",
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t == conform_trigger ? "conform" :
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t == edge ? "edge" :
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t == level ? "level" : "?");
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break;
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}
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case 4:
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{
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// Local APIC NMI
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acpi_lapic_nmi_t *nmi = (acpi_lapic_nmi_t *) h;
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polarity_t p = lapic_nmi_get_polarity(nmi);
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trigger_mode_t t = lapic_nmi_get_trigger_mode(nmi);
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dbgprintf ("Local APIC NMI\n");
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dbgprintf ("[CPU id: %d, LINT#: %d Pol: %s, Trigger: %s]\n",
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nmi->apic_processor_id,
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nmi->lint,
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p == conform_polarity ? "conform" :
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p == active_high ? "active high" :
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p == active_low ? "active low" : "?",
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t == conform_trigger ? "conform" :
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t == edge ? "edge" :
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t == level ? "level" : "?");
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break;
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}
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case 5:
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{
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// Local APIC Address Override
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dbgprintf ("Local APIC Address Override\n");
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break;
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}
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case 8:
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{
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// Platform Interrupt Source
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dbgprintf ("Platform Interrupt Source\n");
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break;
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}
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}
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i += h->len;
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}
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};
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