Attachment 25426 Details for Bug 21230 – add lid event handler

[patch] add lid event handler

i915-handle-lid-events.patch (text/plain), 2.43 KB, created by Jesse Barnes on 2009-05-04 13:19:05 UTC

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Creator: Jesse Barnes

Created: 2009-05-04 13:19:05 UTC

Size: 2.43 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>index bdcda36..f6cf23b 100644
>--- a/drivers/gpu/drm/i915/intel_display.c
>+++ b/drivers/gpu/drm/i915/intel_display.c
>@@ -24,6 +24,8 @@
>  *	Eric Anholt <eric@anholt.net>
>  */
> 
>+#include <linux/module.h>
>+#include <linux/input.h>
> #include <linux/i2c.h>
> #include "drmP.h"
> #include "intel_drv.h"
>@@ -1995,6 +1997,76 @@ intel_user_framebuffer_create(struct drm_device *dev,
> 	return fb;
> }
> 
>+static void lid_event(struct input_handle *handle, unsigned int type,
>+		      unsigned int code, int value)
>+{
>+	if (code != SW_LID)
>+		return;
>+
>+	if (value) {
>+		DRM_ERROR("received lid close event\n");
>+	} else {
>+		DRM_ERROR("received lid open event\n");
>+	}
>+}
>+
>+static int lid_connect(struct input_handler *handler, struct input_dev *dev,
>+		       const struct input_device_id *id)
>+{
>+	struct input_handle *handle;
>+	int ret;
>+
>+	handle = kzalloc(sizeof(*handle), GFP_KERNEL);
>+	if (!handle)
>+		return -ENOMEM;
>+
>+	handle->dev = dev;
>+	handle->handler = handler;
>+	handle->name = "i915-lid";
>+
>+	ret = input_register_handle(handle);
>+	if (ret) {
>+		DRM_ERROR("failed to register lid handler: %d\n", ret);
>+		kfree(handle);
>+		return ret;
>+	}
>+
>+	ret = input_open_device(handle);
>+	if (ret) {
>+		DRM_ERROR("failed to open lid device: %d\n", ret);
>+		input_unregister_handle(handle);
>+		kfree(handle);
>+		return ret;
>+	}
>+
>+	return 0;
>+}
>+
>+static void lid_disconnect(struct input_handle *handle)
>+{
>+	input_close_device(handle);
>+	input_unregister_handle(handle);
>+	kfree(handle);
>+}
>+
>+static const struct input_device_id lid_ids[] = {
>+	{
>+		.flags = INPUT_DEVICE_ID_MATCH_SWBIT,
>+		.swbit = { [BIT_WORD(SW_LID)] = BIT_MASK(SW_LID) },
>+	},
>+	{ },
>+};
>+
>+MODULE_DEVICE_TABLE(input, lid_ids);
>+
>+static struct input_handler lid_handler = {
>+	.event = lid_event,
>+	.connect = lid_connect,
>+	.disconnect = lid_disconnect,
>+	.name = "i915-lid",
>+	.id_table = lid_ids,
>+};
>+
> static const struct drm_mode_config_funcs intel_mode_funcs = {
> 	.fb_create = intel_user_framebuffer_create,
> 	.fb_changed = intelfb_probe,
>@@ -2038,10 +2110,16 @@ void intel_modeset_init(struct drm_device *dev)
> 	}
> 
> 	intel_setup_outputs(dev);
>+
>+	if (input_register_handler(&lid_handler))
>+		DRM_ERROR("failed to register lid handler\n");
>+	else
>+		DRM_ERROR("registered lid handler\n");
> }
> 
> void intel_modeset_cleanup(struct drm_device *dev)
> {
>+	input_unregister_handler(&lid_handler);
> 	drm_mode_config_cleanup(dev);
> }
>

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