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V4L/DVB: ir-core: improve keyup/keydown logic

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Rewrites the keyup/keydown logic in drivers/media/IR/ir-keytable.c.

All knowledge of keystates etc is now internal to ir-keytable.c
and not scattered around ir-raw-event.c and ir-nec-decoder.c (where
it doesn't belong).

In addition, I've changed the API slightly so that ir_input_dev is
passed as the first argument rather than input_dev. If we're ever
going to support multiple keytables we need to move towards making
ir_input_dev the main interface from a driver POV and obscure away
the input_dev as an implementational detail in ir-core.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
David Härdeman
2010-04-02 15:58:29 -03:00
committed by Mauro Carvalho Chehab
parent 354389467b
commit a374fef443
4 changed files with 114 additions and 49 deletions
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15
include/media/ir-core.h
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@@ -76,7 +76,6 @@ struct ir_raw_event {
struct ir_raw_event_ctrl {
struct kfifo kfifo; /* fifo for the pulse/space events */
struct timespec last_event; /* when last event occurred */
struct timer_list timer_keyup; /* timer for key release */
};
struct ir_input_dev {
@@ -86,10 +85,16 @@ 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 */
struct input_dev *input_dev; /* the input device associated with this device */
/* key info - needed by IR keycode handlers */
u32 keycode; /* linux key code */
int keypressed; /* current state */
spinlock_t keylock; /* protects the below members */
bool keypressed; /* current state */
unsigned long keyup_jiffies; /* when should the current keypress be released? */
struct timer_list timer_keyup; /* timer for releasing a keypress */
u32 last_keycode; /* keycode of last command */
u32 last_scancode; /* scancode of last command */
u8 last_toggle; /* toggle of last command */
};
struct ir_raw_handler {
@@ -115,8 +120,8 @@ void rc_map_init(void);
u32 ir_g_keycode_from_table(struct input_dev *input_dev,
u32 scancode);
void ir_keyup(struct input_dev *dev);
void ir_keydown(struct input_dev *dev, int scancode);
void ir_repeat(struct input_dev *dev);
void ir_keydown(struct input_dev *dev, int scancode, u8 toggle);
int __ir_input_register(struct input_dev *dev,
const struct ir_scancode_table *ir_codes,
const struct ir_dev_props *props,