WebSVN – HelenOS-historic – Diff – /SPARTAN/trunk/genarch/src/acpi/acpi.c

 /*
  * Copyright (C) 2005 Jakub Jermar
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
+ *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  * - The name of the author may not be used to endorse or promote products
  *   derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include <genarch/firmware/acpi/acpi.h>
+#include <genarch/acpi/acpi.h>
-#include <genarch/firmware/acpi/madt.h>
+#include <genarch/acpi/madt.h>
 #include <arch/bios/bios.h>
 #include <mm/page.h>
 #include <print.h>
 #define RSDP_SIGNATURE      "RSD PTR "
 #define RSDP_REVISION_OFFS  15
 struct acpi_rsdp *acpi_rsdp = NULL;
 struct acpi_rsdt *acpi_rsdt = NULL;
 struct acpi_xsdt *acpi_xsdt = NULL;
 struct acpi_signature_map signature_map[] = {
     { (__u8 *)"APIC", (struct acpi_sdt_header **) &acpi_madt, "Multiple APIC Description Table" }
 };
-int rsdp_check(__u8 *rsdp) {
+static int rsdp_check(__u8 *rsdp) {
     struct acpi_rsdp *r = (struct acpi_rsdp *) rsdp;
     __u8 sum = 0;
     int i;
     for (i=0; i<20; i++)
         sum += rsdp[i];
     if (sum)
         return 0; /* bad checksum */
     if (r->revision == 0)
         return 1; /* ACPI 1.0 */
     for (; i<r->length; i++)
         sum += rsdp[i];
     return !sum;
+}
 int acpi_sdt_check(__u8 *sdt)
+{
     struct acpi_sdt_header *h = (struct acpi_sdt_header *) sdt;
     __u8 sum = 0;
     int i;
     for (i=0; i<h->length; i++)
         sum += sdt[i];
     return !sum;
+}
-void map_sdt(struct acpi_sdt_header *sdt)
+static void map_sdt(struct acpi_sdt_header *sdt)
+{
     map_page_to_frame((__address) sdt, (__address) sdt, PAGE_NOT_CACHEABLE, 0);
     map_structure((__address) sdt, sdt->length);
+}
+static void configure_via_rsdt(void)
+{
+    int i, j, cnt = (acpi_rsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u32);
+    for (i=0; i<cnt; i++) {
+        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
+            struct acpi_sdt_header *h = (struct acpi_sdt_header *) (__native) acpi_rsdt->entry[i];
+            map_sdt(h);
+            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
+                if (!acpi_sdt_check((__u8 *) h))
+                    goto next;
+                *signature_map[j].sdt_ptr = h;
+                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
+            }
+        }
+next:
+        ;
+    }
+}
+static void configure_via_xsdt(void)
+{
+    int i, j, cnt = (acpi_xsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u64);
+    for (i=0; i<cnt; i++) {
+        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
+            struct acpi_sdt_header *h = (struct acpi_sdt_header *) ((__address) acpi_rsdt->entry[i]);
+            map_sdt(h);
+            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
+                if (!acpi_sdt_check((__u8 *) h))
+                    goto next;
+                *signature_map[j].sdt_ptr = h;
+                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
+            }
+        }
+next:
+        ;
+    }
+}
 void acpi_init(void)
+{
     __u8 *addr[2] = { NULL, (__u8 *) PA2KA(0xe0000) };
     int i, j, length[2] = { 1024, 128*1024 };
     __u64 *sig = (__u64 *) RSDP_SIGNATURE;
     /*
      * Find Root System Description Pointer
      * 1. search first 1K of EBDA
      * 2. search 128K starting at 0xe0000
      */
     addr[0] = (__u8 *) PA2KA(ebda);
     for (i = (ebda ? 0 : 1); i < 2; i++) {
         for (j = 0; j < length[i]; j += 16) {
             if (*((__u64 *) &addr[i][j]) == *sig && rsdp_check(&addr[i][j])) {
                 acpi_rsdp = (struct acpi_rsdp *) &addr[i][j];
                 goto rsdp_found;
+            }
+        }
+    }
     return;
 rsdp_found:
     printf("%P: ACPI Root System Description Pointer\n", acpi_rsdp);
     acpi_rsdt = (struct acpi_rsdt *) (__native) acpi_rsdp->rsdt_address;
     if (acpi_rsdp->revision) acpi_xsdt = (struct acpi_xsdt *) ((__address) acpi_rsdp->xsdt_address);
     if (acpi_rsdt) map_sdt((struct acpi_sdt_header *) acpi_rsdt);
     if (acpi_xsdt) map_sdt((struct acpi_sdt_header *) acpi_xsdt);
     if (acpi_rsdt && !acpi_sdt_check((__u8 *) acpi_rsdt)) {
         printf("RSDT: %s\n", "bad checksum");
         return;
+    }
     if (acpi_xsdt && !acpi_sdt_check((__u8 *) acpi_xsdt)) {
         printf("XSDT: %s\n", "bad checksum");
         return;
+    }
     if (acpi_xsdt) configure_via_xsdt();
     else if (acpi_rsdt) configure_via_rsdt();
+}
-void configure_via_rsdt(void)
-{
-    int i, j, cnt = (acpi_rsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u32);
-    for (i=0; i<cnt; i++) {
-        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
-            struct acpi_sdt_header *h = (struct acpi_sdt_header *) (__native) acpi_rsdt->entry[i];
-            map_sdt(h);
-            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
-                if (!acpi_sdt_check((__u8 *) h))
-                    goto next;
-                *signature_map[j].sdt_ptr = h;
-                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
-            }
-        }
-next:
-        ;
-    }
-}
-void configure_via_xsdt(void)
-{
-    int i, j, cnt = (acpi_xsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u64);
-    for (i=0; i<cnt; i++) {
-        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
-            struct acpi_sdt_header *h = (struct acpi_sdt_header *) ((__address) acpi_rsdt->entry[i]);
-            map_sdt(h);
-            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
-                if (!acpi_sdt_check((__u8 *) h))
-                    goto next;
-                *signature_map[j].sdt_ptr = h;
-                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
-            }
-        }
-next:
-        ;
-    }
-}

Subversion Repositories HelenOS-historic

(root)/SPARTAN/trunk/genarch/src/acpi/acpi.c – Rev 422 → 452