diff options
Diffstat (limited to 'include/media/ir-core.h')
| -rw-r--r-- | include/media/ir-core.h | 181 |
1 files changed, 80 insertions, 101 deletions
diff --git a/include/media/ir-core.h b/include/media/ir-core.h index d41502d9919c..c5909981b075 100644 --- a/include/media/ir-core.h +++ b/include/media/ir-core.h @@ -32,21 +32,38 @@ enum rc_driver_type { }; /** - * struct ir_dev_props - Allow caller drivers to set special properties - * @driver_type: specifies if the driver or hardware have already a decoder, - * or if it needs to use the IR raw event decoders to produce a scancode + * struct rc_dev - represents a remote control device + * @dev: driver model's view of this device + * @input_name: name of the input child device + * @input_phys: physical path to the input child device + * @input_id: id of the input child device (struct input_id) + * @driver_name: name of the hardware driver which registered this device + * @map_name: name of the default keymap + * @rc_tab: current scan/key table + * @devno: unique remote control device number + * @raw: additional data for raw pulse/space devices + * @input_dev: the input child device used to communicate events to userspace + * @driver_type: specifies if protocol decoding is done in hardware or software + * @idle: used to keep track of RX state * @allowed_protos: bitmask with the supported IR_TYPE_* protocols * @scanmask: some hardware decoders are not capable of providing the full * scancode to the application. As this is a hardware limit, we can't do * anything with it. Yet, as the same keycode table can be used with other * devices, a mask is provided to allow its usage. Drivers should generally * leave this field in blank + * @priv: driver-specific data + * @keylock: protects the remaining members of the struct + * @keypressed: whether a key is currently pressed + * @keyup_jiffies: time (in jiffies) when the current keypress should be released + * @timer_keyup: timer for releasing a keypress + * @last_keycode: keycode of last keypress + * @last_scancode: scancode of last keypress + * @last_toggle: toggle value of last command * @timeout: optional time after which device stops sending data * @min_timeout: minimum timeout supported by device * @max_timeout: maximum timeout supported by device * @rx_resolution : resolution (in ns) of input sampler * @tx_resolution: resolution (in ns) of output sampler - * @priv: driver-specific data, to be used on the callbacks * @change_protocol: allow changing the protocol used on hardware decoders * @open: callback to allow drivers to enable polling/irq when IR input device * is opened. @@ -57,55 +74,50 @@ enum rc_driver_type { * @s_tx_duty_cycle: set transmit duty cycle (0% - 100%) * @s_rx_carrier: inform driver about carrier it is expected to handle * @tx_ir: transmit IR - * @s_idle: optional: enable/disable hardware idle mode, upon which, - device doesn't interrupt host until it sees IR pulses + * @s_idle: enable/disable hardware idle mode, upon which, + * device doesn't interrupt host until it sees IR pulses * @s_learning_mode: enable wide band receiver used for learning * @s_carrier_report: enable carrier reports */ -struct ir_dev_props { - enum rc_driver_type driver_type; - unsigned long allowed_protos; - u32 scanmask; - - u32 timeout; - u32 min_timeout; - u32 max_timeout; - - u32 rx_resolution; - u32 tx_resolution; - - void *priv; - int (*change_protocol)(void *priv, u64 ir_type); - int (*open)(void *priv); - void (*close)(void *priv); - int (*s_tx_mask)(void *priv, u32 mask); - int (*s_tx_carrier)(void *priv, u32 carrier); - int (*s_tx_duty_cycle)(void *priv, u32 duty_cycle); - int (*s_rx_carrier_range)(void *priv, u32 min, u32 max); - int (*tx_ir)(void *priv, int *txbuf, u32 n); - void (*s_idle)(void *priv, bool enable); - int (*s_learning_mode)(void *priv, int enable); - int (*s_carrier_report) (void *priv, int enable); -}; - -struct ir_input_dev { - struct device dev; /* device */ - char *driver_name; /* Name of the driver module */ - struct ir_scancode_table rc_tab; /* scan/key table */ - unsigned long devno; /* device number */ - 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 */ +struct rc_dev { + struct device dev; + const char *input_name; + const char *input_phys; + struct input_id input_id; + char *driver_name; + const char *map_name; + struct ir_scancode_table rc_tab; + unsigned long devno; + struct ir_raw_event_ctrl *raw; + struct input_dev *input_dev; + enum rc_driver_type driver_type; bool idle; - - /* key info - needed by IR keycode handlers */ - 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 */ + u64 allowed_protos; + u32 scanmask; + void *priv; + spinlock_t keylock; + bool keypressed; + unsigned long keyup_jiffies; + struct timer_list timer_keyup; + u32 last_keycode; + u32 last_scancode; + u8 last_toggle; + u32 timeout; + u32 min_timeout; + u32 max_timeout; + u32 rx_resolution; + u32 tx_resolution; + int (*change_protocol)(struct rc_dev *dev, u64 ir_type); + int (*open)(struct rc_dev *dev); + void (*close)(struct rc_dev *dev); + int (*s_tx_mask)(struct rc_dev *dev, u32 mask); + int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier); + int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle); + int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max); + int (*tx_ir)(struct rc_dev *dev, int *txbuf, u32 n); + void (*s_idle)(struct rc_dev *dev, bool enable); + int (*s_learning_mode)(struct rc_dev *dev, int enable); + int (*s_carrier_report) (struct rc_dev *dev, int enable); }; enum raw_event_type { @@ -115,52 +127,14 @@ enum raw_event_type { IR_STOP_EVENT = (1 << 3), }; -#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr) - -int __ir_input_register(struct input_dev *dev, - const struct ir_scancode_table *ir_codes, - struct ir_dev_props *props, - const char *driver_name); - -static inline int ir_input_register(struct input_dev *dev, - const char *map_name, - struct ir_dev_props *props, - const char *driver_name) { - struct ir_scancode_table *ir_codes; - struct ir_input_dev *ir_dev; - int rc; - - if (!map_name) - return -EINVAL; - - ir_codes = get_rc_map(map_name); - if (!ir_codes) { - ir_codes = get_rc_map(RC_MAP_EMPTY); +#define to_rc_dev(d) container_of(d, struct rc_dev, dev) - if (!ir_codes) - return -EINVAL; - } - rc = __ir_input_register(dev, ir_codes, props, driver_name); - if (rc < 0) - return -EINVAL; - - ir_dev = input_get_drvdata(dev); - - if (!rc && ir_dev->props && ir_dev->props->change_protocol) - rc = ir_dev->props->change_protocol(ir_dev->props->priv, - ir_codes->ir_type); - - return rc; -} - -void ir_input_unregister(struct input_dev *input_dev); - -void ir_repeat(struct input_dev *dev); -void ir_keydown(struct input_dev *dev, int scancode, u8 toggle); -void ir_keydown_notimeout(struct input_dev *dev, int scancode, u8 toggle); -void ir_keyup(struct input_dev *dev); -u32 ir_g_keycode_from_table(struct input_dev *input_dev, u32 scancode); +void ir_repeat(struct rc_dev *dev); +void ir_keydown(struct rc_dev *dev, int scancode, u8 toggle); +void ir_keydown_notimeout(struct rc_dev *dev, int scancode, u8 toggle); +void ir_keyup(struct rc_dev *dev); +u32 ir_g_keycode_from_table(struct rc_dev *dev, u32 scancode); /* From ir-raw-event.c */ struct ir_raw_event { @@ -194,20 +168,25 @@ static inline void init_ir_raw_event(struct ir_raw_event *ev) #define IR_MAX_DURATION 0xFFFFFFFF /* a bit more than 4 seconds */ -void ir_raw_event_handle(struct input_dev *input_dev); -int ir_raw_event_store(struct input_dev *input_dev, struct ir_raw_event *ev); -int ir_raw_event_store_edge(struct input_dev *input_dev, enum raw_event_type type); -int ir_raw_event_store_with_filter(struct input_dev *input_dev, +struct rc_dev *rc_allocate_device(void); +void rc_free_device(struct rc_dev *dev); +int rc_register_device(struct rc_dev *dev); +void rc_unregister_device(struct rc_dev *dev); + +void ir_raw_event_handle(struct rc_dev *dev); +int ir_raw_event_store(struct rc_dev *dev, struct ir_raw_event *ev); +int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type); +int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev); -void ir_raw_event_set_idle(struct input_dev *input_dev, bool idle); +void ir_raw_event_set_idle(struct rc_dev *dev, bool idle); -static inline void ir_raw_event_reset(struct input_dev *input_dev) +static inline void ir_raw_event_reset(struct rc_dev *dev) { DEFINE_IR_RAW_EVENT(ev); ev.reset = true; - ir_raw_event_store(input_dev, &ev); - ir_raw_event_handle(input_dev); + ir_raw_event_store(dev, &ev); + ir_raw_event_handle(dev); } |