Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/libps2.h b/include/linux/libps2.h
new file mode 100644
index 000000000000..923bdbc6d9e4
--- /dev/null
+++ b/include/linux/libps2.h
@@ -0,0 +1,50 @@
+#ifndef _LIBPS2_H
+#define _LIBPS2_H
+
+/*
+ * Copyright (C) 1999-2002 Vojtech Pavlik
+ * Copyright (C) 2004 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+
+#define PS2_CMD_GETID           0x02f2
+#define PS2_CMD_RESET_BAT       0x02ff
+
+#define PS2_RET_BAT             0xaa
+#define PS2_RET_ID              0x00
+#define PS2_RET_ACK             0xfa
+#define PS2_RET_NAK             0xfe
+
+#define PS2_FLAG_ACK            1       /* Waiting for ACK/NAK */
+#define PS2_FLAG_CMD            2       /* Waiting for command to finish */
+#define PS2_FLAG_CMD1           4       /* Waiting for the first byte of command response */
+#define PS2_FLAG_WAITID         8       /* Command execiting is GET ID */
+
+struct ps2dev {
+        struct serio *serio;
+
+        /* Ensures that only one command is executing at a time */
+        struct semaphore cmd_sem;
+
+        /* Used to signal completion from interrupt handler */
+        wait_queue_head_t wait;
+
+        unsigned long flags;
+        unsigned char cmdbuf[6];
+        unsigned char cmdcnt;
+        unsigned char nak;
+};
+
+void ps2_init(struct ps2dev *ps2dev, struct serio *serio);
+int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout);
+int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command);
+int ps2_schedule_command(struct ps2dev *ps2dev, unsigned char *param, int command);
+int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data);
+int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data);
+void ps2_cmd_aborted(struct ps2dev *ps2dev);
+
+#endif /* _LIBPS2_H */