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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-03-21 12:15:16 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-18 00:52:56 -0300
commit6660de568d164e4eda6617dadcb999c96e62203f (patch)
treeef86833336b7423443531afa58dc5781b4f97c2a
parenta3572c34da8dacc78a629211a91cf34e9b408701 (diff)
V4L/DVB: ir-core: add two functions to report keyup/keydown events
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/IR/ir-keytable.c57
-rw-r--r--include/media/ir-core.h4
2 files changed, 60 insertions, 1 deletions
diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index 73fe4bec83b..e59290febf8 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -365,7 +365,7 @@ static int ir_setkeycode(struct input_dev *dev,
*
* This routine is used by the input routines when a key is pressed at the
* IR. The scancode is received and needs to be converted into a keycode.
- * If the key is not found, it returns KEY_UNKNOWN. Otherwise, returns the
+ * If the key is not found, it returns KEY_RESERVED. Otherwise, returns the
* corresponding keycode from the table.
*/
u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode)
@@ -392,6 +392,61 @@ u32 ir_g_keycode_from_table(struct input_dev *dev, u32 scancode)
EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
/**
+ * ir_keyup() - generates input event to cleanup a key press
+ * @input_dev: the struct input_dev descriptor of the device
+ *
+ * This routine is used by the input routines when a key is pressed at the
+ * IR. It reports a keyup input event via input_report_key().
+ */
+void ir_keyup(struct input_dev *dev)
+{
+ struct ir_input_dev *ir = input_get_drvdata(dev);
+
+ if (!ir->keypressed)
+ return;
+
+ input_report_key(dev, ir->keycode, 0);
+ input_sync(dev);
+ ir->keypressed = 0;
+}
+EXPORT_SYMBOL_GPL(ir_keyup);
+
+/**
+ * ir_keydown() - generates input event for a key press
+ * @input_dev: the struct input_dev descriptor of the device
+ * @scancode: the scancode that we're seeking
+ *
+ * This routine is used by the input routines when a key is pressed at the
+ * IR. It gets the keycode for a scancode and reports an input event via
+ * input_report_key().
+ */
+void ir_keydown(struct input_dev *dev, int scancode)
+{
+ struct ir_input_dev *ir = input_get_drvdata(dev);
+
+ u32 keycode = ir_g_keycode_from_table(dev, scancode);
+
+ /* If already sent a keydown, do a keyup */
+ if (ir->keypressed)
+ ir_keyup(dev);
+
+ if (KEY_RESERVED == keycode)
+ return;
+
+ ir->keycode = keycode;
+ ir->keypressed = 1;
+
+ IR_dprintk(1, "%s: key down event, key 0x%04x, scancode 0x%04x\n",
+ dev->name, keycode, scancode);
+
+ input_report_key(dev, ir->keycode, 1);
+ input_sync(dev);
+
+}
+EXPORT_SYMBOL_GPL(ir_keydown);
+
+
+/**
* ir_input_register() - sets the IR keycode table and add the handlers
* for keymap table get/set
* @input_dev: the struct input_dev descriptor of the device
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index 369969d9077..198fd61f0da 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -72,6 +72,10 @@ struct ir_input_dev {
unsigned long devno; /* device number */
const struct ir_dev_props *props; /* Device properties */
struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
+
+ /* key info - needed by IR keycode handlers */
+ u32 keycode; /* linux key code */
+ int keypressed; /* current state */
};
#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)