patch-2.1.132 linux/include/net/irda/w83977af.h

• Lines: 55
• Date: Thu Dec 17 09:01:03 1998
• Orig file: v2.1.131/linux/include/net/irda/w83977af.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.131/linux/include/net/irda/w83977af.h linux/include/net/irda/w83977af.h
@@ -0,0 +1,54 @@
+#ifndef W83977AF_H
+#define W83977AF_H
+
+#define W977_EFER 0x370
+#define W977_EFIR 0x370
+#define W977_EFDR 0x371
+#define W977_DEVICE_IR 0x06
+
+
+/*
+ * Enter extended function mode
+ */
+static inline void w977_efm_enter(void)
+{
+        outb(0x87, W977_EFER);
+        outb(0x87, W977_EFER);
+}
+
+/*
+ * Select a device to configure 
+ */
+
+static inline void w977_select_device(__u8 devnum)
+{
+	outb(0x07, W977_EFIR);
+	outb(devnum, W977_EFDR);
+} 
+
+/* 
+ * Write a byte to a register
+ */
+static inline void w977_write_reg(__u8 reg, __u8 value)
+{
+	outb(reg, W977_EFIR);
+	outb(value, W977_EFDR);
+}
+
+/*
+ * read a byte from a register
+ */
+static inline __u8 w977_read_reg(__u8 reg)
+{
+	outb(reg, W977_EFIR);
+	return inb(W977_EFDR);
+}
+
+/*
+ * Exit extended function mode
+ */
+static inline void w977_efm_exit(void)
+{
+	outb(0xAA, W977_EFER);
+}
+#endif