Introduce architecture library as new kernel subsystem and move selected routines into new subsystem

2023-01-28 10:34:55 +01:00
parent 651113c4e8
commit 27e2fdf4f2
19 changed files with 837 additions and 736 deletions
--- a/xtoskrnl/hl/amd64/ioport.c
+++ b/xtoskrnl/hl/amd64/ioport.c
@@ -0,0 +1,145 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/hl/amd64/ioport.c
+ * DESCRIPTION:     I/O port access routines for AMD64 platform
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include "xtkmapi.h"
+
+
+/**
+ * Reads the 8-bit data from the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to read from, in the range of 0-0xFFFF.
+ *
+ * @return The value read from the port.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+UCHAR
+HlIoPortInByte(IN USHORT Port)
+{
+    UCHAR Value;
+    asm volatile("inb %1, %0"
+                 : "=a" (Value)
+                 : "Nd" (Port));
+    return Value;
+}
+
+/**
+ * Reads the 16-bit data from the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to read from, in the range of 0-0xFFFF.
+ *
+ * @return The value read from the port.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+USHORT
+HlIoPortInShort(IN USHORT Port)
+{
+    USHORT Value;
+    asm volatile("inw %1, %0"
+                 : "=a" (Value)
+                 : "Nd" (Port));
+    return Value;
+}
+
+/**
+ * Reads the 32-bit data from the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to read from, in the range of 0-0xFFFF.
+ *
+ * @return The value read from the port.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+ULONG
+HlIoPortInLong(IN USHORT Port)
+{
+    ULONG Value;
+    asm volatile("inl %1, %0"
+                 : "=a" (Value)
+                 : "Nd" (Port));
+    return Value;
+}
+
+/**
+ * Writes the 8-bit data to the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to write to, in the range of 0-0xFFFF.
+ *
+ * @param Value
+ *        Supplies the value to write.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+HlIoPortOutByte(IN USHORT Port,
+                IN UCHAR Value)
+{
+    asm volatile("outb %0, %1"
+                 :
+                 : "a" (Value),
+                   "Nd" (Port));
+}
+
+/**
+ * Writes the 16-bit data to the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to write to, in the range of 0-0xFFFF.
+ *
+ * @param Value
+ *        Supplies the value to write.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+HlIoPortOutShort(IN USHORT Port,
+                 IN USHORT Value)
+{
+    asm volatile("outw %0, %1"
+                 :
+                 : "a" (Value),
+                   "Nd" (Port));
+}
+
+/**
+ * Writes the 32-bit data to the specified I/O port.
+ *
+ * @param Port
+ *        Specifies the address to write to, in the range of 0-0xFFFF.
+ *
+ * @param Value
+ *        Supplies the value to write.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTCDECL
+VOID
+HlIoPortOutLong(IN USHORT Port,
+                IN ULONG Value)
+{
+    asm volatile("outl %0, %1"
+                 :
+                 : "a" (Value),
+                   "Nd" (Port));
+}