HID: roccat: cleanup of pyra module

Partially removed unneeded informations and data caching.
Moved code nearer to format of newer drivers.
Added "info" sysfs attribute to support device reset and deprecate
"firmware_version" attribute.
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Documentation/ABI/obsolete/sysfs-driver-hid-roccat-pyra

+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	It is possible to switch the cpi setting of the mouse with the
+		press of a button.
+		When read, this file returns the raw number of the actual cpi
+		setting reported by the mouse. This number has to be further
+		processed to receive the real dpi value.
+
+		VALUE DPI
+		1     400
+		2     800
+		4     1600
+
+		This file is readonly.
+		Has never been used. If bookkeeping is done, it's done in userland tools.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the number of the actual profile in
+		range 0-4.
+		This file is readonly.
+		Please use binary attribute "settings" which provides this information.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns the raw integer version number of the
+		firmware reported by the mouse. Using the integer value eases
+		further usage in other programs. To receive the real version
+		number the decimal point has to be shifted 2 positions to the
+		left. E.g. a returned value of 138 means 1.38
+		This file is readonly.
+		Please use binary attribute "info" which provides this information.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile
+Date:		August 2010
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 0-4.
+                When read, this attribute returns the number of the profile
+                that's active when the mouse is powered on.
+		This file is readonly.
+		Please use binary attribute "settings" which provides this information.
+Users:		http://roccat.sourceforge.net
\ No newline at end of file

Documentation/ABI/testing/sysfs-driver-hid-roccat-pyra

-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_cpi
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	It is possible to switch the cpi setting of the mouse with the
-		press of a button.
-		When read, this file returns the raw number of the actual cpi
-		setting reported by the mouse. This number has to be further
-		processed to receive the real dpi value.
-
-		VALUE DPI
-		1     400
-		2     800
-		4     1600
-
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/actual_profile
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the number of the actual profile in
-		range 0-4.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/firmware_version
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	When read, this file returns the raw integer version number of the
-		firmware reported by the mouse. Using the integer value eases
-		further usage in other programs. To receive the real version
-		number the decimal point has to be shifted 2 positions to the
-		left. E.g. a returned value of 138 means 1.38
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/profile_settings
 Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
@@ -86,15 +50,6 @@ Description:	The mouse can store 5 profiles which can be switched by the
 		This file is readonly.
 Users:		http://roccat.sourceforge.net
 
-What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/startup_profile
-Date:		August 2010
-Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
-Description:	The integer value of this attribute ranges from 0-4.
-                When read, this attribute returns the number of the profile
-                that's active when the mouse is powered on.
-		This file is readonly.
-Users:		http://roccat.sourceforge.net
-
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/pyra/roccatpyra<minor>/settings
 Date:		August 2010
 Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>

drivers/hid/hid-roccat-pyra.h

@@ -14,11 +14,12 @@
 
 #include <linux/types.h>
 
-struct pyra_b {
-	uint8_t command; /* PYRA_COMMAND_B */
-	uint8_t size; /* always 3 */
-	uint8_t unknown; /* 1 */
-} __attribute__ ((__packed__));
+enum {
+	PYRA_SIZE_INFO = 0x06,
+	PYRA_SIZE_PROFILE_SETTINGS = 0x0d,
+	PYRA_SIZE_PROFILE_BUTTONS = 0x13,
+	PYRA_SIZE_SETTINGS = 0x03,
+};
 
 enum pyra_control_requests {
 	PYRA_CONTROL_REQUEST_PROFILE_SETTINGS = 0x10,
@@ -46,14 +47,6 @@ struct pyra_profile_settings {
 	uint16_t checksum; /* byte sum */
 } __attribute__ ((__packed__));
 
-struct pyra_profile_buttons {
-	uint8_t command; /* PYRA_COMMAND_PROFILE_BUTTONS */
-	uint8_t size; /* always 0x13 */
-	uint8_t number; /* Range 0-4 */
-	uint8_t buttons[14];
-	uint16_t checksum; /* byte sum */
-} __attribute__ ((__packed__));
-
 struct pyra_info {
 	uint8_t command; /* PYRA_COMMAND_INFO */
 	uint8_t size; /* always 6 */
@@ -148,13 +141,10 @@ struct pyra_roccat_report {
 struct pyra_device {
 	int actual_profile;
 	int actual_cpi;
-	int firmware_version;
 	int roccat_claimed;
 	int chrdev_minor;
 	struct mutex pyra_lock;
-	struct pyra_settings settings;
 	struct pyra_profile_settings profile_settings[5];
-	struct pyra_profile_buttons profile_buttons[5];
 };
 
 #endif