1 /*
2     Auvitek AU8522 QAM/8VSB demodulator driver
3 
4     Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
5 
6     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10 
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15 
16     You should have received a copy of the GNU General Public License
17     along with this program; if not, write to the Free Software
18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 
20 */
21 
22 #ifndef __AU8522_H__
23 #define __AU8522_H__
24 
25 #include <linux/dvb/frontend.h>
26 
27 enum au8522_if_freq {
28 	AU8522_IF_6MHZ = 0,
29 	AU8522_IF_4MHZ,
30 	AU8522_IF_3_25MHZ,
31 };
32 
33 struct au8522_led_config {
34 	u16 vsb8_strong;
35 	u16 qam64_strong;
36 	u16 qam256_strong;
37 
38 	u16 gpio_output;
39 	/* unset hi bits, set low bits */
40 	u16 gpio_output_enable;
41 	u16 gpio_output_disable;
42 
43 	u16 gpio_leds;
44 	u8 *led_states;
45 	unsigned int num_led_states;
46 };
47 
48 struct au8522_config {
49 	/* the demodulator's i2c address */
50 	u8 demod_address;
51 
52 	/* Return lock status based on tuner lock, or demod lock */
53 #define AU8522_TUNERLOCKING 0
54 #define AU8522_DEMODLOCKING 1
55 	u8 status_mode;
56 
57 	struct au8522_led_config *led_cfg;
58 
59 	enum au8522_if_freq vsb_if;
60 	enum au8522_if_freq qam_if;
61 };
62 
63 #if IS_REACHABLE(CONFIG_DVB_AU8522_DTV)
64 extern struct dvb_frontend *au8522_attach(const struct au8522_config *config,
65 					  struct i2c_adapter *i2c);
66 #else
67 static inline
au8522_attach(const struct au8522_config * config,struct i2c_adapter * i2c)68 struct dvb_frontend *au8522_attach(const struct au8522_config *config,
69 				   struct i2c_adapter *i2c)
70 {
71 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
72 	return NULL;
73 }
74 #endif /* CONFIG_DVB_AU8522 */
75 
76 /* Other modes may need to be added later */
77 enum au8522_video_input {
78 	AU8522_COMPOSITE_CH1 = 1,
79 	AU8522_COMPOSITE_CH2,
80 	AU8522_COMPOSITE_CH3,
81 	AU8522_COMPOSITE_CH4,
82 	AU8522_COMPOSITE_CH4_SIF,
83 	AU8522_SVIDEO_CH13,
84 	AU8522_SVIDEO_CH24,
85 };
86 
87 enum au8522_audio_input {
88 	AU8522_AUDIO_NONE,
89 	AU8522_AUDIO_SIF,
90 };
91 #endif /* __AU8522_H__ */
92