HID: roccat: Add "Roccat Talk" support for koneplus

Added binary sysfs attribute to support new functionality the manufacturer
added to koneplus.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 30 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
index c1b53b8bc2ae..65e6e5dd67e8 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
@@ -92,6 +92,14 @@ Description:	The mouse has a tracking- and a distance-control-unit. These
                 This file is writeonly.
 Users:          http://roccat.sourceforge.net
 
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/talk
+Date:           May 2011
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    Used to active some easy* functions of the mouse from outside.
+                The data has to be 16 bytes long.
+                This file is writeonly.
+Users:          http://roccat.sourceforge.net
+
 What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu
 Date:           October 2010
 Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 5b640a7a15a7..23cdb449d88e 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -240,6 +240,14 @@ static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
         return real_size;
 }
 
+static ssize_t koneplus_sysfs_write_talk(struct file *fp,
+                struct kobject *kobj, struct bin_attribute *attr, char *buf,
+                loff_t off, size_t count)
+{
+        return koneplus_sysfs_write(fp, kobj, buf, off, count,
+                        sizeof(struct koneplus_talk), KONEPLUS_USB_COMMAND_TALK);
+}
+
 static ssize_t koneplus_sysfs_write_macro(struct file *fp,
                 struct kobject *kobj, struct bin_attribute *attr, char *buf,
                 loff_t off, size_t count)
@@ -557,6 +565,11 @@ static struct bin_attribute koneplus_bin_attributes[] = {
                 .size = sizeof(struct koneplus_macro),
                 .write = koneplus_sysfs_write_macro
         },
+        {
+                .attr = { .name = "talk", .mode = 0220 },
+                .size = sizeof(struct koneplus_talk),
+                .write = koneplus_sysfs_write_talk
+        },
         __ATTR_NULL
 };
 
diff --git a/drivers/hid/hid-roccat-koneplus.h b/drivers/hid/hid-roccat-koneplus.h
index c57a376ab8ae..0bf252076ee7 100644
--- a/drivers/hid/hid-roccat-koneplus.h
+++ b/drivers/hid/hid-roccat-koneplus.h
@@ -14,6 +14,12 @@
 
 #include <linux/types.h>
 
+struct koneplus_talk {
+        uint8_t command; /* KONEPLUS_COMMAND_TALK */
+        uint8_t size; /* always 0x10 */
+        uint8_t data[14];
+} __packed;
+
 /*
  * case 1: writes request 80 and reads value 1
  *
@@ -139,6 +145,7 @@ enum koneplus_commands {
         KONEPLUS_COMMAND_INFO = 0x9,
         KONEPLUS_COMMAND_E = 0xe,
         KONEPLUS_COMMAND_SENSOR = 0xf,
+        KONEPLUS_COMMAND_TALK = 0x10,
         KONEPLUS_COMMAND_FIRMWARE_WRITE = 0x1b,
         KONEPLUS_COMMAND_FIRMWARE_WRITE_CONTROL = 0x1c,
 };
@@ -153,6 +160,7 @@ enum koneplus_usb_commands {
         KONEPLUS_USB_COMMAND_TCU = 0x30c,
         KONEPLUS_USB_COMMAND_E = 0x30e,
         KONEPLUS_USB_COMMAND_SENSOR = 0x30f,
+        KONEPLUS_USB_COMMAND_TALK = 0x310,
         KONEPLUS_USB_COMMAND_FIRMWARE_WRITE = 0x31b,
         KONEPLUS_USB_COMMAND_FIRMWARE_WRITE_CONTROL = 0x31c,
 };
@@ -193,6 +201,7 @@ enum koneplus_mouse_report_button_types {
          * data2 = action
          */
         KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_MULTIMEDIA = 0xf0,
+        KONEPLUS_MOUSE_REPORT_TALK = 0xff,
 };
 
 enum koneplus_mouse_report_button_action {