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