#include <hal/acpi/acpi.h>
-#include <lunaix/mm/kalloc.h>
+#include <lunaix/device.h>
+#include <lunaix/mm/valloc.h>
#include <lunaix/spike.h>
#include <lunaix/syslog.h>
#include <klibc/string.h>
-#include "parser/madt_parser.h"
+#include "parser/parser.h"
-static acpi_context* toc = NULL;
+static acpi_context* ctx = NULL;
LOG_MODULE("ACPI")
int
acpi_rsdp_validate(acpi_rsdp_t* rsdp);
-acpi_rsdp_t*
-acpi_locate_rsdp(multiboot_info_t* mb_info);
-
-int
-acpi_init(multiboot_info_t* mb_info)
-{
- acpi_rsdp_t* rsdp = acpi_locate_rsdp(mb_info);
-
- assert_msg(rsdp, "Fail to locate ACPI_RSDP");
- assert_msg(acpi_rsdp_validate(rsdp), "Invalid ACPI_RSDP (checksum failed)");
-
- kprintf(KINFO "RSDP found at %p, RSDT: %p\n", rsdp, rsdp->rsdt);
-
- acpi_rsdt_t* rsdt = rsdp->rsdt;
-
- toc = lxcalloc(1, sizeof(acpi_context));
- assert_msg(toc, "Fail to create ACPI context");
-
- strncpy(toc->oem_id, rsdt->header.oem_id, 6);
- toc->oem_id[6] = '\0';
-
- size_t entry_n = (rsdt->header.length - sizeof(acpi_sdthdr_t)) >> 2;
- for (size_t i = 0; i < entry_n; i++) {
- acpi_sdthdr_t* sdthdr = ((acpi_apic_t**)&(rsdt->entry))[i];
- switch (sdthdr->signature) {
- case ACPI_MADT_SIG:
- madt_parse((acpi_madt_t*)sdthdr, toc);
- break;
- default:
- break;
- }
- }
-
- kprintf(KINFO "OEM: %s\n", toc->oem_id);
- kprintf(KINFO "IOAPIC address: %p\n", toc->madt.ioapic->ioapic_addr);
- kprintf(KINFO "APIC address: %p\n", toc->madt.apic_addr);
-
- for (size_t i = 0; i < 24; i++) {
- acpi_intso_t* intso = toc->madt.irq_exception[i];
- if (!intso)
- continue;
-
- kprintf(KINFO "IRQ #%u -> GSI #%u\n", intso->source, intso->gsi);
- }
-}
-
acpi_context*
acpi_get_context()
{
- assert_msg(toc, "ACPI is not initialized");
- return toc;
+ assert_msg(ctx, "ACPI is not initialized");
+ return ctx;
}
int
acpi_rsdp_validate(acpi_rsdp_t* rsdp)
{
- uint8_t sum = 0;
- uint8_t* rsdp_ptr = (uint8_t*)rsdp;
+ u8_t sum = 0;
+ u8_t* rsdp_ptr = (u8_t*)rsdp;
for (size_t i = 0; i < 20; i++) {
sum += *(rsdp_ptr + i);
}
return sum == 0;
}
+u8_t
+acpi_gsimap(u8_t old_irq)
+{
+ if (old_irq >= 24) {
+ return old_irq;
+ }
+ acpi_intso_t* int_override = ctx->madt.irq_exception[old_irq];
+ return int_override ? (u8_t)int_override->gsi : old_irq;
+}
+
#define VIRTUAL_BOX_PROBLEM
acpi_rsdp_t*
-acpi_locate_rsdp(multiboot_info_t* mb_info)
+acpi_locate_rsdp()
{
acpi_rsdp_t* rsdp = NULL;
- // You can't trust memory map from multiboot in virtual box!
- // They put ACPI RSDP in the FUCKING 0xe0000 !!!
- // Which is reported to be free area bt multiboot!
- // SWEET CELESTIA!!!
-#ifndef VIRTUAL_BOX_PROBLEM
- multiboot_memory_map_t* mmap = (multiboot_memory_map_t*)mb_info->mmap_addr;
- for (size_t i = 0, j = 0; j < mb_info->mmap_length && !rsdp;
- i++, j += MB_MMAP_ENTRY_SIZE) {
- multiboot_memory_map_t entry = mmap[i];
- if (entry.type != MULTIBOOT_MEMORY_RESERVED ||
- entry.addr_low > 0x100000) {
- continue;
- }
+ ptr_t mem_start = 0x4000;
+ for (; mem_start < 0x100000; mem_start += 16) {
+ u32_t sig_low = *((u32_t*)mem_start);
+ // XXX: do we need to compare this as well?
+ // u32_t sig_high = *((u32_t*)(mem_start+j) + 1);
- uint8_t* mem_start = entry.addr_low & ~0xf;
- size_t len = entry.len_low;
- for (size_t j = 0; j < len; j += 16) {
- uint32_t sig_low = *((uint32_t*)(mem_start + j));
- // uint32_t sig_high = *((uint32_t*)(mem_start+j) + 1);
- if (sig_low == ACPI_RSDP_SIG_L) {
- rsdp = (acpi_rsdp_t*)(mem_start + j);
- break;
- }
- }
- }
-#else
- // You know what, I just search the entire 1MiB for Celestia's sake.
- uint8_t* mem_start = 0x4000;
- for (size_t j = 0; j < 0x100000; j += 16) {
- uint32_t sig_low = *((uint32_t*)(mem_start + j));
- // uint32_t sig_high = *((uint32_t*)(mem_start+j) + 1);
if (sig_low == ACPI_RSDP_SIG_L) {
- rsdp = (acpi_rsdp_t*)(mem_start + j);
+ rsdp = (acpi_rsdp_t*)mem_start;
break;
}
}
-#endif
return rsdp;
-}
\ No newline at end of file
+}
+
+static int
+acpi_init(struct device_def* devdef)
+{
+ acpi_rsdp_t* rsdp = acpi_locate_rsdp();
+
+ assert_msg(rsdp, "Fail to locate ACPI_RSDP");
+ assert_msg(acpi_rsdp_validate(rsdp), "Invalid ACPI_RSDP (checksum failed)");
+
+ acpi_rsdt_t* rsdt = rsdp->rsdt;
+
+ ctx = vzalloc(sizeof(acpi_context));
+ assert_msg(ctx, "Fail to create ACPI context");
+
+ strncpy(ctx->oem_id, rsdt->header.oem_id, 6);
+ ctx->oem_id[6] = '\0';
+
+ size_t entry_n = (rsdt->header.length - sizeof(acpi_sdthdr_t)) >> 2;
+ for (size_t i = 0; i < entry_n; i++) {
+ acpi_sdthdr_t* sdthdr =
+ (acpi_sdthdr_t*)((acpi_apic_t**)&(rsdt->entry))[i];
+ switch (sdthdr->signature) {
+ case ACPI_MADT_SIG:
+ madt_parse((acpi_madt_t*)sdthdr, ctx);
+ break;
+ case ACPI_FADT_SIG:
+ // FADT just a plain structure, no need to parse.
+ ctx->fadt = *(acpi_fadt_t*)sdthdr;
+ break;
+ case ACPI_MCFG_SIG:
+ mcfg_parse(sdthdr, ctx);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return 0;
+}
+
+struct device_def acpi_sysdev = { .name = "ACPI Proxy",
+ .class =
+ DEVCLASS(DEVIF_FMW, DEVFN_CFG, DEV_ACPI),
+ .init = acpi_init };
+EXPORT_DEVICE(acpi, &acpi_sysdev, load_sysconf);
\ No newline at end of file
git://scm.lunaixsky.com / lunaix-os.git / blobdiff