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Linux/include/media/i2c/ir-kbd-i2c.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _IR_I2C
  3 #define _IR_I2C
  4 
  5 #include <media/rc-core.h>
  6 
  7 #define DEFAULT_POLLING_INTERVAL        100     /* ms */
  8 
  9 struct IR_i2c;
 10 
 11 struct IR_i2c {
 12         char                   *ir_codes;
 13         struct i2c_client      *c;
 14         struct rc_dev          *rc;
 15 
 16         /* Used to avoid fast repeating */
 17         unsigned char          old;
 18 
 19         u32                    polling_interval; /* in ms */
 20 
 21         struct delayed_work    work;
 22         char                   phys[32];
 23         int                    (*get_key)(struct IR_i2c *ir,
 24                                           enum rc_proto *protocol,
 25                                           u32 *scancode, u8 *toggle);
 26         /* tx */
 27         struct i2c_client      *tx_c;
 28         struct mutex           lock;    /* do not poll Rx during Tx */
 29         unsigned int           carrier;
 30         unsigned int           duty_cycle;
 31 };
 32 
 33 enum ir_kbd_get_key_fn {
 34         IR_KBD_GET_KEY_CUSTOM = 0,
 35         IR_KBD_GET_KEY_PIXELVIEW,
 36         IR_KBD_GET_KEY_HAUP,
 37         IR_KBD_GET_KEY_KNC1,
 38         IR_KBD_GET_KEY_FUSIONHDTV,
 39         IR_KBD_GET_KEY_HAUP_XVR,
 40         IR_KBD_GET_KEY_AVERMEDIA_CARDBUS,
 41 };
 42 
 43 /* Can be passed when instantiating an ir_video i2c device */
 44 struct IR_i2c_init_data {
 45         char                    *ir_codes;
 46         const char              *name;
 47         u64                     type; /* RC_PROTO_BIT_RC5, etc */
 48         u32                     polling_interval; /* 0 means DEFAULT_POLLING_INTERVAL */
 49 
 50         /*
 51          * Specify either a function pointer or a value indicating one of
 52          * ir_kbd_i2c's internal get_key functions
 53          */
 54         int                    (*get_key)(struct IR_i2c *ir,
 55                                           enum rc_proto *protocol,
 56                                           u32 *scancode, u8 *toggle);
 57         enum ir_kbd_get_key_fn internal_get_key_func;
 58 
 59         struct rc_dev           *rc_dev;
 60 };
 61 #endif
 62 

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