/* * Remote Controller core raw events header * * Copyright (C) 2010 by Mauro Carvalho Chehab * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _RC_CORE_PRIV #define _RC_CORE_PRIV #include #include #include struct ir_raw_handler { struct list_head list; u64 protocols; /* which are handled by this handler */ int (*decode)(struct rc_dev *dev, struct ir_raw_event event); /* These two should only be used by the lirc decoder */ int (*raw_register)(struct rc_dev *dev); int (*raw_unregister)(struct rc_dev *dev); }; struct ir_raw_event_ctrl { struct list_head list; /* to keep track of raw clients */ struct task_struct *thread; spinlock_t lock; struct kfifo_rec_ptr_1 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 rc_dev *dev; /* pointer to the parent rc_dev */ /* raw decoder state follows */ struct ir_raw_event prev_ev; struct ir_raw_event this_ev; struct nec_dec { int state; unsigned count; u32 bits; bool is_nec_x; bool necx_repeat; } nec; struct rc5_dec { int state; u32 bits; unsigned count; unsigned wanted_bits; } rc5; struct rc6_dec { int state; u8 header; u32 body; bool toggle; unsigned count; unsigned wanted_bits; } rc6; struct sony_dec { int state; u32 bits; unsigned count; } sony; struct jvc_dec { int state; u16 bits; u16 old_bits; unsigned count; bool first; bool toggle; } jvc; struct rc5_sz_dec { int state; u32 bits; unsigned count; unsigned wanted_bits; } rc5_sz; struct sanyo_dec { int state; unsigned count; u64 bits; } sanyo; struct sharp_dec { int state; unsigned count; u32 bits; unsigned int pulse_len; } sharp; struct mce_kbd_dec { struct input_dev *idev; struct timer_list rx_timeout; char name[64]; char phys[64]; int state; u8 header; u32 body; unsigned count; unsigned wanted_bits; } mce_kbd; struct lirc_codec { struct rc_dev *dev; struct lirc_driver *drv; int carrier_low; ktime_t gap_start; u64 gap_duration; bool gap; bool send_timeout_reports; } lirc; }; /* macros for IR decoders */ static inline bool geq_margin(unsigned d1, unsigned d2, unsigned margin) { return d1 > (d2 - margin); } static inline bool eq_margin(unsigned d1, unsigned d2, unsigned margin) { return ((d1 > (d2 - margin)) && (d1 < (d2 + margin))); } static inline bool is_transition(struct ir_raw_event *x, struct ir_raw_event *y) { return x->pulse != y->pulse; } static inline void decrease_duration(struct ir_raw_event *ev, unsigned duration) { if (duration > ev->duration) ev->duration = 0; else ev->duration -= duration; } /* Returns true if event is normal pulse/space event */ static inline bool is_timing_event(struct ir_raw_event ev) { return !ev.carrier_report && !ev.reset; } #define TO_US(duration) DIV_ROUND_CLOSEST((duration), 1000) #define TO_STR(is_pulse) ((is_pulse) ? "pulse" : "space") /* * Routines from rc-raw.c to be used internally and by decoders */ u64 ir_raw_get_allowed_protocols(void); int ir_raw_event_register(struct rc_dev *dev); void ir_raw_event_unregister(struct rc_dev *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); /* * Decoder initialization code * * Those load logic are called during ir-core init, and automatically * loads the compiled decoders for their usage with IR raw events */ /* from ir-nec-decoder.c */ #ifdef CONFIG_IR_NEC_DECODER_MODULE #define load_nec_decode() request_module_nowait("ir-nec-decoder") #else static inline void load_nec_decode(void) { } #endif /* from ir-rc5-decoder.c */ #ifdef CONFIG_IR_RC5_DECODER_MODULE #define load_rc5_decode() request_module_nowait("ir-rc5-decoder") #else static inline void load_rc5_decode(void) { } #endif /* from ir-rc6-decoder.c */ #ifdef CONFIG_IR_RC6_DECODER_MODULE #define load_rc6_decode() request_module_nowait("ir-rc6-decoder") #else static inline void load_rc6_decode(void) { } #endif /* from ir-jvc-decoder.c */ #ifdef CONFIG_IR_JVC_DECODER_MODULE #define load_jvc_decode() request_module_nowait("ir-jvc-decoder") #else static inline void load_jvc_decode(void) { } #endif /* from ir-sony-decoder.c */ #ifdef CONFIG_IR_SONY_DECODER_MODULE #define load_sony_decode() request_module_nowait("ir-sony-decoder") #else static inline void load_sony_decode(void) { } #endif /* from ir-sanyo-decoder.c */ #ifdef CONFIG_IR_SANYO_DECODER_MODULE #define load_sanyo_decode() request_module_nowait("ir-sanyo-decoder") #else static inline void load_sanyo_decode(void) { } #endif /* from ir-mce_kbd-decoder.c */ #ifdef CONFIG_IR_MCE_KBD_DECODER_MODULE #define load_mce_kbd_decode() request_module_nowait("ir-mce_kbd-decoder") #else static inline void load_mce_kbd_decode(void) { } #endif /* from ir-lirc-codec.c */ #ifdef CONFIG_IR_LIRC_CODEC_MODULE #define load_lirc_codec() request_module_nowait("ir-lirc-codec") #else static inline void load_lirc_codec(void) { } #endif #endif /* _RC_CORE_PRIV */