打印中断控制器结构的信息

kernel/driver/acpi/acpi.c

@@ -4,6 +4,9 @@
 #include "../multiboot2/multiboot2.h"
 #include "../../mm/mm.h"
 
+// 获取RSDT entry的虚拟地址
+#define acpi_get_RSDT_entry_vaddr(phys_addr) (ACPI_DESCRIPTION_HEDERS_BASE + MASK_HIGH_32bit(phys_addr) - acpi_RSDT_entry_phys_base)
+
 static struct acpi_RSDP_t *rsdpv1;
 static struct acpi_RSDP_2_t *rsdpv2;
 static struct acpi_RSDT_Structure_t *rsdt;
@@ -14,7 +17,6 @@ static struct multiboot_tag_new_acpi_t new_acpi;
 static ul acpi_RSDT_offset = 0;
 static uint acpi_RSDT_Entry_num = 0;
 
-
 // RSDT中的第一个entry所在物理页的基地址
 static ul acpi_RSDT_entry_phys_base = 0;
 
@@ -23,15 +25,61 @@ static ul acpi_RSDT_entry_phys_base = 0;
  * @param  _fun            迭代操作调用的函数
  * @param  _data           数据
  */
-void acpi_iter_SDT(bool (*_fun)(const struct acpi_iter_SDT_header_t *, void *),
+void acpi_iter_SDT(bool (*_fun)(const struct acpi_system_description_table_header_t *, void *),
                    void *_data)
 {
+
+    struct acpi_system_description_table_header_t *sdt_header;
+    uint *ent = &(rsdt->Entry);
+    for (int i = 0; i < acpi_RSDT_Entry_num; ++i)
+    {
+
+        sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent + i))));
+
+        if (_fun(sdt_header, _data) == true)
+            return;
+    }
+
+    return;
 }
 
-static ul acpi_get_RSDT_entry_vaddr(ul phys_addr)
+/**
+ * @brief 获取MADT信息 Multiple APIC Description Table
+ *
+ * @param _iter_data 要被迭代的信息的结构体
+ * @param _data 返回信息的结构体指针
+ * @param count 返回数组的长度
+ * @return true
+ * @return false
+ */
+bool acpi_get_MADT(const struct acpi_system_description_table_header_t *_iter_data, void *_data)
 {
-    return ACPI_DESCRIPTION_HEDERS_BASE + MASK_HIGH_32bit(phys_addr) - acpi_RSDT_entry_phys_base;
+    if (!(_iter_data->Signature[0] == 'A' && _iter_data->Signature[1] == 'P' && _iter_data->Signature[2] == 'I' && _iter_data->Signature[3] == 'C'))
+        return false;
+    //*(struct acpi_Multiple_APIC_Description_Table_t *)_data = *(struct acpi_Multiple_APIC_Description_Table_t *)_iter_data;
+    *(ul*)_data = _iter_data;
+    kdebug("_iter_data = %#018lx", (ul)_iter_data);
+    kdebug("_data = %#018lx", (ul)_data);
+    //_data = _iter_data;
+    /*
+    void *ent = (void *)(_iter_data) + sizeof(struct acpi_Multiple_APIC_Description_Table_t);
+    struct apic_Interrupt_Controller_Structure_header_t *header;
+    for (int i = 0; i < 17; ++i)
+    {
+        header = (struct apic_Interrupt_Controller_Structure_header_t *)ent;
+        kdebug("[ %d ] type=%d, length=%d", i, header->type, header->length);
+        if (header->type == 1)
+        {
+            struct acpi_IO_APIC_Structure_t *t = (struct acpi_IO_APIC_Structure_t *)ent;
+            kdebug("IO apic addr = %#018lx", t->IO_APIC_Address);
+        }
+
+        ent += header->length;
+    }
+    */
+    return true;
 }
+
 /**
  * @brief 初始化acpi模块
  *
@@ -63,13 +111,12 @@ void acpi_init()
     kdebug("Rsdt_v2_phys_Address=%#018lx", rsdpv2->rsdp1.RsdtAddress);
     kdebug("RSDP_v2_Revision=%d", rsdpv2->rsdp1.Revision);
 
-    rsdt = ACPI_RSDT_VIRT_ADDR_BASE + acpi_RSDT_offset;
+    rsdt = (struct acpi_RSDT_Structure_t *)(ACPI_RSDT_VIRT_ADDR_BASE + acpi_RSDT_offset);
 
     // 计算RSDT Entry的数量
     kdebug("offset=%d", sizeof(rsdt->header));
     acpi_RSDT_Entry_num = (rsdt->header.Length - 36) / 4;
 
-    printk_color(ORANGE, BLACK, "%s\n", rsdt->header.Signature);
     printk_color(ORANGE, BLACK, "RSDT Length=%dbytes.\n", rsdt->header.Length);
     printk_color(ORANGE, BLACK, "RSDT Entry num=%d\n", acpi_RSDT_Entry_num);
 
@@ -78,26 +125,8 @@ void acpi_init()
     // 由于地址只是32bit的，并且存在脏数据，这里需要手动清除高32bit，否则会触发#GP
     acpi_RSDT_entry_phys_base = MASK_HIGH_32bit(acpi_RSDT_entry_phys_base);
 
-
     kdebug("entry=%#018lx", rsdt->Entry);
     kdebug("acpi_RSDT_entry_phys_base=%#018lx", acpi_RSDT_entry_phys_base);
-
+    // 映射RSDT ENTRY的物理地址
     mm_map_phys_addr(ACPI_DESCRIPTION_HEDERS_BASE, acpi_RSDT_entry_phys_base, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
-
-    // 设置第一个entry的虚拟地址
-    struct acpi_system_description_table_header_t *sdt_header;
-    uint* ent = &(rsdt->Entry);
-    for (int i = 0; i < acpi_RSDT_Entry_num; ++i)
-    {
-        kdebug("entry_addr_phys[ %d ]= %#018lx", i, MASK_HIGH_32bit((ul)(*(ent+i))));
-        sdt_header = (struct acpi_system_description_table_header_t *)(acpi_get_RSDT_entry_vaddr((ul)(*(ent+i))));
-        if(i<7)
-        {
-            struct acpi_Multiple_APIC_Description_Table_t *madt = (struct acpi_Multiple_APIC_Description_Table_t*)sdt_header;
-            for(int j=0;j<4;++j)
-                printk_color(ORANGE, BLACK, "%c", madt->header.Signature[j]);
-            printk("\n");
-            kdebug("length=%d", madt->header.Length);
-        }
-    }
 }