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
9struct IR_i2c;
10
11struct 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
33enum 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 */
44struct 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