commit 0d248832e9235ab390b4961eecae90b63a226948
author swissChili <swisschili@fastmail.com> Thu Apr 08 18:16:02 2021 -0700
committer swissChili <swisschili@fastmail.com> Thu Apr 08 18:16:02 2021 -0700
tree e4f17e5e0de9ce8f8f62d273e6428b4d1c1fee49
parent 2e0febf00359d869f373041a4779ccae935af890

Add start of PCI and AHCI drivers

src/kernel/io.c

diff --git a/src/kernel/io.c b/src/kernel/io.c
index 4f7d3d3..90a365c 100644
--- a/src/kernel/io.c
+++ b/src/kernel/io.c
@@ -30,6 +30,18 @@
 	return ret;
 }
 
+void outl(ushort port, uint val)
+{
+	asm volatile("outl %1, %0" : : "dN"(port), "a"(val));
+}
+
+uint inl(ushort port)
+{
+	uint ret;
+	asm volatile("inl %1, %0" : "=a"(ret) : "dN"(port));
+	return ret;
+}
+
 void *memset(void *s, int c, size_t n)
 {
 	for (size_t i = 0; i < n; i++)