feat: nearly complete POSIX.1-2008 compliant terminal interface implementation

[lunaix-os.git] / lunaix-os / hal / acpi / acpi.c

diff --git a/lunaix-os/hal/acpi/acpi.c b/lunaix-os/hal/acpi/acpi.c
index 559befef9f2c76895ecfaab27ca9fa8b382227a3..5732ec8e176802ece8c38383b0a95e3c589a8830 100644 (file)
--- a/lunaix-os/hal/acpi/acpi.c
+++ b/lunaix-os/hal/acpi/acpi.c
@@ -1,5 +1,6 @@
 #include <hal/acpi/acpi.h>
 
+#include <lunaix/device.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/spike.h>
 #include <lunaix/syslog.h>
@@ -15,53 +16,6 @@ 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)");
-
-    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:
-                kprintf(KINFO "MADT: %p\n", sdthdr);
-                madt_parse((acpi_madt_t*)sdthdr, ctx);
-                break;
-            case ACPI_FADT_SIG:
-                // FADT just a plain structure, no need to parse.
-                kprintf(KINFO "FADT: %p\n", sdthdr);
-                ctx->fadt = *(acpi_fadt_t*)sdthdr;
-                break;
-            case ACPI_MCFG_SIG:
-                kprintf(KINFO "MCFG: %p\n", sdthdr);
-                mcfg_parse(sdthdr, ctx);
-                break;
-            default:
-                break;
-        }
-    }
-
-    kprintf(KINFO "ACPI: %s\n", ctx->oem_id);
-
-    return 0;
-}
-
 acpi_context*
 acpi_get_context()
 {
@@ -82,7 +36,7 @@ acpi_rsdp_validate(acpi_rsdp_t* rsdp)
 }
 
 u8_t
-acpi_gistranslate(u8_t old_irq)
+acpi_gsimap(u8_t old_irq)
 {
     if (old_irq >= 24) {
         return old_irq;
@@ -94,37 +48,10 @@ acpi_gistranslate(u8_t 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;
-        }
-
-        u8_t* mem_start = entry.addr_low & ~0xf;
-        size_t len = entry.len_low;
-        for (size_t j = 0; j < len; j += 16) {
-            u32_t sig_low = *((u32_t*)(mem_start + j));
-            // u32_t sig_high = *((u32_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.
     ptr_t mem_start = 0x4000;
     for (; mem_start < 0x100000; mem_start += 16) {
         u32_t sig_low = *((u32_t*)mem_start);
@@ -136,7 +63,51 @@ acpi_locate_rsdp(multiboot_info_t* mb_info)
             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