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V4L/DVB: ir-core: add two functions to report keyup/keydown events

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Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-03-21 12:15:16 -03:00
parent a3572c34da
commit 6660de568d
2 changed files with 60 additions and 1 deletions
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57
drivers/media/IR/ir-keytable.c
View File

@ -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)
@ -391,6 +391,61 @@ 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

4
include/media/ir-core.h
View File

@ -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)