1 files changed, 133 insertions, 0 deletions

diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
new file mode 100644
index 000000000000..13835039a2a7
--- /dev/null
+++ b/drivers/input/serio/i8042.h
@@ -0,0 +1,133 @@
+#ifndef _I8042_H
+#define _I8042_H
+
+#include <linux/config.h>
+
+/*
+ *  Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * 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.
+ */
+
+/*
+ * Arch-dependent inline functions and defines.
+ */
+
+#if defined(CONFIG_MACH_JAZZ)
+#include "i8042-jazzio.h"
+#elif defined(CONFIG_SGI_IP22)
+#include "i8042-ip22io.h"
+#elif defined(CONFIG_PPC)
+#include "i8042-ppcio.h"
+#elif defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64)
+#include "i8042-sparcio.h"
+#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
+#include "i8042-x86ia64io.h"
+#else
+#include "i8042-io.h"
+#endif
+
+/*
+ * This is in 50us units, the time we wait for the i8042 to react. This
+ * has to be long enough for the i8042 itself to timeout on sending a byte
+ * to a non-existent mouse.
+ */
+
+#define I8042_CTL_TIMEOUT       10000
+
+/*
+ * When the device isn't opened and it's interrupts aren't used, we poll it at
+ * regular intervals to see if any characters arrived. If yes, we can start
+ * probing for any mouse / keyboard connected. This is the period of the
+ * polling.
+ */
+
+#define I8042_POLL_PERIOD       HZ/20
+
+/*
+ * Status register bits.
+ */
+
+#define I8042_STR_PARITY        0x80
+#define I8042_STR_TIMEOUT       0x40
+#define I8042_STR_AUXDATA       0x20
+#define I8042_STR_KEYLOCK       0x10
+#define I8042_STR_CMDDAT        0x08
+#define I8042_STR_MUXERR        0x04
+#define I8042_STR_IBF           0x02
+#define I8042_STR_OBF           0x01
+
+/*
+ * Control register bits.
+ */
+
+#define I8042_CTR_KBDINT        0x01
+#define I8042_CTR_AUXINT        0x02
+#define I8042_CTR_IGNKEYLOCK    0x08
+#define I8042_CTR_KBDDIS        0x10
+#define I8042_CTR_AUXDIS        0x20
+#define I8042_CTR_XLATE         0x40
+
+/*
+ * Commands.
+ */
+
+#define I8042_CMD_CTL_RCTR      0x0120
+#define I8042_CMD_CTL_WCTR      0x1060
+#define I8042_CMD_CTL_TEST      0x01aa
+
+#define I8042_CMD_KBD_DISABLE   0x00ad
+#define I8042_CMD_KBD_ENABLE    0x00ae
+#define I8042_CMD_KBD_TEST      0x01ab
+#define I8042_CMD_KBD_LOOP      0x11d2
+
+#define I8042_CMD_AUX_DISABLE   0x00a7
+#define I8042_CMD_AUX_ENABLE    0x00a8
+#define I8042_CMD_AUX_TEST      0x01a9
+#define I8042_CMD_AUX_SEND      0x10d4
+#define I8042_CMD_AUX_LOOP      0x11d3
+
+#define I8042_CMD_MUX_PFX       0x0090
+#define I8042_CMD_MUX_SEND      0x1090
+
+/*
+ * Return codes.
+ */
+
+#define I8042_RET_CTL_TEST      0x55
+
+/*
+ * Expected maximum internal i8042 buffer size. This is used for flushing
+ * the i8042 buffers.
+ */
+
+#define I8042_BUFFER_SIZE       16
+
+/*
+ * Number of AUX ports on controllers supporting active multiplexing
+ * specification
+ */
+
+#define I8042_NUM_MUX_PORTS     4
+
+/*
+ * Debug.
+ */
+
+#ifdef DEBUG
+static unsigned long i8042_start_time;
+#define dbg_init() do { i8042_start_time = jiffies; } while (0)
+#define dbg(format, arg...)                                                     \
+        do {                                                                    \
+                if (i8042_debug)                                                \
+                        printk(KERN_DEBUG __FILE__ ": " format " [%d]\n" ,      \
+                                ## arg, (int) (jiffies - i8042_start_time));    \
+        } while (0)
+#else
+#define dbg_init() do { } while (0)
+#define dbg(format, arg...) do {} while (0)
+#endif
+
+#endif /* _I8042_H */