linux-2.6.25: Add virtual mouse driver, but for AVR32 only.

The AT32STK1002 board comes with a non-touchscreen LCD; this driver
helps to mimick touches on the screen. Currently, it sends the
coordinates and a left mouse button click and release when performing
echo "100 100 0" >/sys/devices/platform/vms/coordinates

diff --git a/packages/linux/linux-2.6.25/at32stk1000/virtualmouse.patch b/packages/linux/linux-2.6.25/at32stk1000/virtualmouse.patch
new file mode 100644 (file)
index 0000000..b828327
--- /dev/null
+++ b/packages/linux/linux-2.6.25/at32stk1000/virtualmouse.patch
@@ -0,0 +1,125 @@
+Index: linux-2.6.25/drivers/input/Kconfig
+===================================================================
+--- linux-2.6.25.orig/drivers/input/Kconfig    2008-04-17 04:49:44.000000000 +0200
++++ linux-2.6.25/drivers/input/Kconfig 2008-08-21 16:37:40.000000000 +0200
+@@ -69,6 +69,13 @@
+         To compile this driver as a module, choose M here: the
+         module will be called mousedev.
+ 
++config INPUT_VMS
++      tristate "Virtual Mouse Driver" if EMBEDDED
++      default y
++      ---help---
++        vms.c from the book Essential Linux Device Drivers
++
++
+ config INPUT_MOUSEDEV_PSAUX
+       bool "Provide legacy /dev/psaux device"
+       default y
+Index: linux-2.6.25/drivers/input/Makefile
+===================================================================
+--- linux-2.6.25.orig/drivers/input/Makefile   2008-04-17 04:49:44.000000000 +0200
++++ linux-2.6.25/drivers/input/Makefile        2008-08-21 16:37:40.000000000 +0200
+@@ -11,6 +11,8 @@
+ obj-$(CONFIG_INPUT_POLLDEV)   += input-polldev.o
+ 
+ obj-$(CONFIG_INPUT_MOUSEDEV)  += mousedev.o
++
++obj-$(CONFIG_INPUT_VMS)       += vms.o
+ obj-$(CONFIG_INPUT_JOYDEV)    += joydev.o
+ obj-$(CONFIG_INPUT_EVDEV)     += evdev.o
+ obj-$(CONFIG_INPUT_EVBUG)     += evbug.o
+Index: linux-2.6.25/drivers/input/vms.c
+===================================================================
+--- /dev/null  1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.25/drivers/input/vms.c   2008-08-21 17:24:05.000000000 +0200
+@@ -0,0 +1,89 @@
++/**
++ * Copyright (c) 2008 by Pearson Education, Inc.
++ *
++ * This material may be distributed only subject to the terms and conditions
++ * set forth in the Open Publication License, v1.0 or later (the latest version
++ * is presently available at http://www.opencontent.org/openpub/).
++ *
++ * Copyright (c) 2008 Leon Woestenberg
++ * Copyright (c) 2008 Sreekrishnan Venkateswaran
++ *
++ * I copied this from Sreekrishnan's book (see http://elinuxdd.com) -- Leon.
++ *
++ */
++
++#include <linux/fs.h>
++#include <asm/uaccess.h>
++#include <linux/input.h>
++#include <linux/platform_device.h>
++
++struct input_dev *vms_input_dev;
++static struct platform_device *vms_dev;
++
++/* for each set of coordinates, we publish them along with a left button
++ * press and release event
++ */
++static ssize_t write_vms(struct device *dev, struct device_attribute *attr,
++  const char *buffer, size_t count)
++{
++      int x, y;
++      sscanf(buffer, "%d%d", &x, &y);
++      input_report_abs(vms_input_dev, ABS_X, x);
++      input_report_abs(vms_input_dev, ABS_Y, y);
++      input_report_key(vms_input_dev, BTN_LEFT, 1);
++      input_sync(vms_input_dev);
++      input_report_key(vms_input_dev, BTN_LEFT, 0);
++      input_sync(vms_input_dev);
++      return count;
++}
++
++DEVICE_ATTR(coordinates, 0644, NULL, write_vms);
++
++static struct attribute *vms_attrs[] = {
++  &dev_attr_coordinates.attr,
++  NULL
++};
++
++static struct attribute_group vms_attr_group = {
++  .attrs = vms_attrs,
++};
++
++static int __init vms_init(void)
++{
++      vms_dev = platform_device_register_simple("vms", -1, NULL, 0);
++      if (IS_ERR(vms_dev)) {
++              PTR_ERR(vms_dev);
++              printk("vms_init: error\n");
++      }
++      sysfs_create_group(&vms_dev->dev.kobj, &vms_attr_group);
++
++      vms_input_dev = input_allocate_device();
++      if (!vms_input_dev) {
++              printk("bad input_allocate_device()\n");
++      }
++
++      set_bit(EV_ABS, vms_input_dev->evbit);
++      set_bit(ABS_X, vms_input_dev->absbit);
++      set_bit(ABS_Y, vms_input_dev->absbit);
++
++      set_bit(EV_KEY, vms_input_dev->evbit);
++      set_bit(BTN_LEFT, vms_input_dev->keybit);
++
++      input_register_device(vms_input_dev);
++      printk("vms initialized\n");
++      return 0;
++}
++
++static int __init vms_exit(void)
++{
++      input_unregister_device(vms_input_dev);
++      sysfs_remove_group(&vms_dev->dev.kobj, &vms_attr_group);
++      platform_device_unregister(vms_dev);
++      return;
++}
++
++module_init(vms_init);
++module_exit(vms_exit);
++
++MODULE_LICENSE("GPL");
++

diff --git a/packages/linux/linux_2.6.25.bb b/packages/linux/linux_2.6.25.bb
index dc9a35e..41f11d2 100644 (file)
--- a/packages/linux/linux_2.6.25.bb
+++ b/packages/linux/linux_2.6.25.bb
@@ -1,6 +1,6 @@
 require linux.inc
 
-PR = "r3"
+PR = "r4"
 
 # Mark archs/machines that this kernel supports
 DEFAULT_PREFERENCE = "-1"
@@ -31,6 +31,7 @@ SRC_URI_append_cm-x270 = " \
 
 SRC_URI_append_at32stk1000 = " \
        http://avr32linux.org/twiki/pub/Main/LinuxPatches/linux-2.6.25.6.atmel.1.patch.bz2;patch=1 \
+       file://virtualmouse.patch;patch=1 \
 "
 
 SRC_URI_append_at91-l9260 = " \