superio.c

src/superio/ITE/it8671f/superio.c

@@ -0,0 +1,67 @@
+// Skeleton code for Tyson. 
+#define PNP_COM1_DEVICE 0x2
+#define PNP_COM2_DEVICE 0x3
+
+#include <subr.h>
+#include <cpu/p5/io.h>
+
+// funny how all these chips are "pnp compatible", and they're all different. 
+#define PNPADDR 0x3f0
+#define PNPDATA 0x3f1
+void
+enter_pnp()
+{
+	// unlock it XXX make this a subr at some point 
+    // outb(0x87, PNPADDR);
+    // outb(0x87, PNPADDR);
+}
+
+void
+exit_pnp()
+{
+	/* all done. */
+	// select configure control
+    // outb(0xaa, PNPADDR);
+}
+
+#ifdef MUST_ENABLE_FLOPPY
+
+void enable_floppy()
+{
+	/* now set the LDN to floppy LDN */
+// 	outb(0x7, PNPADDR);	/* pick reg. 7 */
+// 	outb(0x0, PNPDATA);	/* LDN 0 to reg. 7 */
+
+	/* now select register 0x30, and set bit 1 in that register */
+// 	outb(0x30, PNPADDR);
+// 	outb(0x1, PNPDATA);
+}
+#endif /* MUST_ENABLE_FLOPPY */
+
+void
+enable_com(int com)
+{
+  //   unsigned char b;
+    /* now set the LDN to com LDN */
+    // outb(0x7, PNPADDR);	/* pick reg. 7 */
+    // outb(com, PNPDATA);	/* LDN 0 to reg. 7 */
+
+    /* now select register 0x30, and set bit 1 in that register */
+    // outb(0x30, PNPADDR);
+    // outb(0x1, PNPDATA);
+
+}
+
+void
+final_superio_fixup()
+{
+
+    enter_pnp();
+#ifdef MUST_ENABLE_FLOPPY
+    enable_floppy();
+#endif
+    enable_com(PNP_COM1_DEVICE);
+    enable_com(PNP_COM2_DEVICE);
+
+    exit_pnp();
+}