diff options
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/ir-core.h | 47 |
1 files changed, 36 insertions, 11 deletions
diff --git a/include/media/ir-core.h b/include/media/ir-core.h index e9fa94f..e9a0cbf 100644 --- a/include/media/ir-core.h +++ b/include/media/ir-core.h @@ -65,14 +65,12 @@ struct ir_dev_props { void (*close)(void *priv); }; -struct ir_raw_event { - struct timespec delta; /* Time spent before event */ - enum raw_event_type type; /* event type */ -}; - struct ir_raw_event_ctrl { - struct kfifo kfifo; /* fifo for the pulse/space events */ - struct timespec last_event; /* when last event occurred */ + struct work_struct rx_work; /* for the rx decoding workqueue */ + struct kfifo kfifo; /* fifo for the pulse/space durations */ + ktime_t last_event; /* when last event occurred */ + enum raw_event_type last_type; /* last event type */ + struct input_dev *input_dev; /* pointer to the parent input_dev */ }; struct ir_input_dev { @@ -97,8 +95,7 @@ struct ir_input_dev { struct ir_raw_handler { struct list_head list; - int (*decode)(struct input_dev *input_dev, - struct ir_raw_event *ev); + int (*decode)(struct input_dev *input_dev, s64 duration); int (*raw_register)(struct input_dev *input_dev); int (*raw_unregister)(struct input_dev *input_dev); }; @@ -154,8 +151,14 @@ void ir_unregister_class(struct input_dev *input_dev); /* Routines from ir-raw-event.c */ int ir_raw_event_register(struct input_dev *input_dev); void ir_raw_event_unregister(struct input_dev *input_dev); -int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type); -int ir_raw_event_handle(struct input_dev *input_dev); +void ir_raw_event_handle(struct input_dev *input_dev); +int ir_raw_event_store(struct input_dev *input_dev, s64 duration); +int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type); +static inline void ir_raw_event_reset(struct input_dev *input_dev) +{ + ir_raw_event_store(input_dev, 0); + ir_raw_event_handle(input_dev); +} int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler); void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler); void ir_raw_init(void); @@ -174,4 +177,26 @@ void ir_raw_init(void); #define load_rc5_decode() 0 #endif +/* macros for ir decoders */ +#define PULSE(units) ((units)) +#define SPACE(units) (-(units)) +#define IS_RESET(duration) ((duration) == 0) +#define IS_PULSE(duration) ((duration) > 0) +#define IS_SPACE(duration) ((duration) < 0) +#define DURATION(duration) (abs((duration))) +#define IS_TRANSITION(x, y) ((x) * (y) < 0) +#define DECREASE_DURATION(duration, amount) \ + do { \ + if (IS_SPACE(duration)) \ + duration += (amount); \ + else if (IS_PULSE(duration)) \ + duration -= (amount); \ + } while (0) + +#define TO_UNITS(duration, unit_len) \ + ((int)((duration) > 0 ? \ + DIV_ROUND_CLOSEST(abs((duration)), (unit_len)) :\ + -DIV_ROUND_CLOSEST(abs((duration)), (unit_len)))) +#define TO_US(duration) ((int)TO_UNITS(duration, 1000)) + #endif /* _IR_CORE */ |