Logitech DiNovo Media LCD

Attached is a patch against bluez-utils-3.8 as well as a simple python script to demonstrate the DBUS calls to control the MediaPad. I've CC'd this to the bluez-devel mailing list, to submit the patch for inclusion.

The only unimplemented [trivial] features are:
* Calulator result -> clipboard
* The damn indicator when you press the NAV button. (it does switch modes, however)

Notes:
* Users must have uinput and evdev enabled (for fakehid)
* The media button is mapped to KEY_PHONE
* The "Special Characters" mentioned in the python script might be useful for displaying certain messages.

To hook into gaim, evolution, etc. I'm probably going to
use the bluetooth-applet from bluez-gnome (to avoid writing a completely different applet, and for convienience).

It's 100% solid at this point. Feel free to put it up on your page, and to give me any feedback you might have :) I'll be putting it up on my personal page shortly as well.

Tim

diff -ru bluez-utils-3.8/hidd/dinovo.conf bluez-utils-3.8/hidd/dinovo.conf
@@ -0,0 +1,18 @@
+<!-- This configuration file specifies the required security policies
+     for the Logitech Dinovo MediaPad driver. -->
+
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+  <!-- ../system.conf have denied everything, so we just punch some holes -->
+
+  <policy user="root">
+    <allow own="com.hentenaar.Dinovo.MediaPad"/>
+  </policy>
+
+  <policy at_console="true">
+    <allow send_path="/com/hentenaar"/>
+    <allow send_destination="com.hentenaar.Dinovo.MediaPad" />
+    <allow receive_sender="com.hentenaar.Dinovo.MediaPad"/>
+  </policy>
+</busconfig>

diff -ru bluez-utils-3.8/hidd/hidd.h bluez-utils-3.8/hidd/hidd.h
@@ -32,3 +32,5 @@
 int headset_presenter(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel);
 int jthree_keyboard(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel);
 int celluon_keyboard(const bdaddr_t *src, const bdaddr_t *dst, uint8_t channel);
+int logitech_mediapad(int sock);
+

diff -ru bluez-utils-3.8/hidd/main.c bluez-utils-3.8/hidd/main.c
@@ -506,15 +506,22 @@
 		exit(1);
 	}
 
-	err = create_device(ctl, csk, isk, subclass, 1, 1, bootonly, encrypt, timeout);
-	if (err < 0) {
-		fprintf(stderr, "HID create error %d (%s)\n",
-						errno, strerror(errno));
-		close(isk);
-		sleep(1);
-		close(csk);
-		close(ctl);
-		exit(1);
+	if (!strcmp(req.name,"Logitech Bluetooth Mediapad")) {
+		if (!fork()) {
+			logitech_mediapad(isk);
+			close(ctl);
+			exit(0);
+		}
+	} else {
+		err = create_device(ctl, csk, isk, subclass, 1, 1, bootonly, encrypt, timeout);
+		if (err < 0) {
+			fprintf(stderr, "HID create error %d (%s)\n",errno, strerror(errno));
+			close(isk);
+			sleep(1);
+			close(csk);
+			close(ctl);
+			exit(1);
+		}
 	}
 }
 

diff -ru bluez-utils-3.8/hidd/Makefile.am bluez-utils-3.8/hidd/Makefile.am
@@ -1,15 +1,19 @@
+if CONFIGFILES
+dbusdir = $(sysconfdir)/dbus-1/system.d
+dbus_DATA = dinovo.conf
+endif
 
 bin_PROGRAMS = hidd
 
 hidd_SOURCES = main.c hidd.h sdp.c uinput.h fakehid.c
-hidd_LDADD = @BLUEZ_LIBS@ -lm $(top_builddir)/common/libhelper.a
+hidd_LDADD = @BLUEZ_LIBS@ @DBUS_LIBS@ -lm $(top_builddir)/common/libhelper.a
 
-AM_CFLAGS = @BLUEZ_CFLAGS@
+AM_CFLAGS = @BLUEZ_CFLAGS@ @DBUS_CFLAGS@
 
 INCLUDES = -I$(top_srcdir)/common
 
 man_MANS = hidd.1
 
-EXTRA_DIST = $(man_MANS) fakehid.txt
+EXTRA_DIST = $(man_MANS) fakehid.txt dinovo.conf
 
 MAINTAINERCLEANFILES = Makefile.in

#!/usr/bin/env python

import dbus

# Indicators
LCD_ICON_EMAIL = 1
LCD_ICON_IM = 2
LCD_ICON_MUTE = 4
LCD_ICON_ALARM = 8

# Indicator States
LCD_ICON_OFF = 0
LCD_ICON_ON = 1
LCD_ICON_BLINK = 2

# LCD Beep Codes
LCD_DONT_BEEP = 0
LCD_BEEP_DEEP = 1
LCD_BEEP_SHORT = 2
LCD_BEEP_LONG = 3

# LCD LED States
LCD_LED_OFF = 0
LCD_LED_BLINK = 1

# Special Characters (which might be useful)
# Note: In the interest of i18n, it's worth mentioning that the majority of Cyrillic characters are at
# 0x80 - 0x8f. The ones that overlap with Greek are in the 0x90 - 0x9f range, along with various
# Symbols (heart, 8th note, 16th node, alarm bell, etc.)
#
# For Cyrillic, the messages work fine on Winblows, which means that the LCD uses the ASCII character set
# modified as it would be for KOI8-R.

SMALL_TRIANGLE_RIGHT = "\x03"
SMALL_TRIANGLE_LEFT = "\x04"
LARGE_TRIANGLE_RIGHT = "\x10"

LARGE_TRIANGLE_LEFT  = "\x11"
QUOTE_UP             = "\x12"
QUOTE_DOWN           = "\x13"
SMALL_TRIANGLES_UP   = "\x14"
SMALL_TRIANGLES_DOWN = "\x15"
BULLET               = "\x16"
RETURN_SYMBOL        = "\x17"
ARROW_UP             = "\x18"
ARROW_DOWN           = "\x19"
ARROW_RIGHT          = "\x1a"
ARROW_LEFT           = "\x1b"
LEQUAL               = "\x1c"
GEQUAL               = "\x1d"
LARGE_TRIANGLE_UP    = "\x1e"
LARGE_TRIANGLE_DOWN  = "\x1f"

bus = dbus.SystemBus()
obj = bus.get_object("com.hentenaar.Dinovo.MediaPad", "/com/hentenaar/Dinovo/MediaPad") intf = dbus.Interface(obj, "com.hentenaar.Dinovo.MediaPad")

intf.SetIndicator(LCD_ICON_ALARM,LCD_ICON_BLINK)
intf.BlinkOrBeep(LCD_BEEP_SHORT,LCD_LED_OFF)
intf.WriteText(" -------------- "
"| Dinovo Linux |"
" -------------- ")

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