[ARM] 4506/1: HP Jornada 7XX: Addition of SSP Platform Driver

These patches add full SSP/MCU support for the HP Jornada 720
machine.  Its needed to handle keyboard, touchscreen, battery
and backlight/lcd.

The main driver exports functions and the header file exports
the command values. When talking to the MCU the general procedure
is to start MCU, send command (using ssp_inout(command)), the
proper reply is always TXDUMMY.  After receiving TXDUMMY you can
send the value you wish pushed (for example brightness level).
End with ssp_end() so the spinlock gets unlocked.

Drivers using this havent been implemented yet, but will shortly.

Signed-off-by: Kristoffer Ericson <Kristoffer.ericson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/asm-arm/arch-sa1100/jornada720.h b/include/asm-arm/arch-sa1100/jornada720.h
new file mode 100644
index 000000000000..45d2bb59f9d0
--- /dev/null
+++ b/include/asm-arm/arch-sa1100/jornada720.h
@@ -0,0 +1,27 @@
+/*
+ * include/asm-arm/arch-sa1100/jornada720.h
+ *
+ * This file contains SSP/MCU communication definitions for HP Jornada 710/720/728
+ *
+ * Copyright (C) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
+ *  Copyright (C) 2000 John Ankcorn <jca@lcs.mit.edu>
+ *
+ * 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.
+ *
+ */
+
+ /* HP Jornada 7xx microprocessor commands */
+#define GETBATTERYDATA          0xc0
+#define GETSCANKEYCODE          0x90
+#define GETTOUCHSAMPLES         0xa0
+#define GETCONTRAST             0xD0
+#define SETCONTRAST             0xD1
+#define GETBRIGHTNESS           0xD2
+#define SETBRIGHTNESS           0xD3
+#define CONTRASTOFF             0xD8
+#define BRIGHTNESSOFF           0xD9
+#define PWMOFF                  0xDF
+#define TXDUMMY                 0x11
+#define ERRORCODE               0x00