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-rw-r--r--arch/powerpc/include/asm/mediabay.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mediabay.h b/arch/powerpc/include/asm/mediabay.h
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index 0000000000..230fda4707
--- /dev/null
+++ b/arch/powerpc/include/asm/mediabay.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mediabay.h: definitions for using the media bay
+ * on PowerBook 3400 and similar computers.
+ *
+ * Copyright (C) 1997 Paul Mackerras.
+ */
+#ifndef _PPC_MEDIABAY_H
+#define _PPC_MEDIABAY_H
+
+#ifdef __KERNEL__
+
+#define MB_FD 0 /* media bay contains floppy drive (automatic eject ?) */
+#define MB_FD1 1 /* media bay contains floppy drive (manual eject ?) */
+#define MB_SOUND 2 /* sound device ? */
+#define MB_CD 3 /* media bay contains ATA drive such as CD or ZIP */
+#define MB_PCI 5 /* media bay contains a PCI device */
+#define MB_POWER 6 /* media bay contains a Power device (???) */
+#define MB_NO 7 /* media bay contains nothing */
+
+struct macio_dev;
+
+#ifdef CONFIG_PMAC_MEDIABAY
+
+/* Check the content type of the bay, returns MB_NO if the bay is still
+ * transitionning
+ */
+extern int check_media_bay(struct macio_dev *bay);
+
+/* The ATA driver uses the calls below to temporarily hold on the
+ * media bay callbacks while initializing the interface
+ */
+extern void lock_media_bay(struct macio_dev *bay);
+extern void unlock_media_bay(struct macio_dev *bay);
+
+#else
+
+static inline int check_media_bay(struct macio_dev *bay)
+{
+ return MB_NO;
+}
+
+static inline void lock_media_bay(struct macio_dev *bay) { }
+static inline void unlock_media_bay(struct macio_dev *bay) { }
+
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _PPC_MEDIABAY_H */