drivers/media/dvb-frontends/au8522.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     Auvitek AU8522 QAM/8VSB demodulator driver
   4
   5     Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
   6
   7
   8 */
   9
  10 #ifndef __AU8522_H__
  11 #define __AU8522_H__
  12
  13 #include <linux/dvb/frontend.h>
  14
  15 enum au8522_if_freq {
  16         AU8522_IF_6MHZ = 0,
  17         AU8522_IF_4MHZ,
  18         AU8522_IF_3_25MHZ,
  19 };
  20
  21 struct au8522_led_config {
  22         u16 vsb8_strong;
  23         u16 qam64_strong;
  24         u16 qam256_strong;
  25
  26         u16 gpio_output;
  27         /* unset hi bits, set low bits */
  28         u16 gpio_output_enable;
  29         u16 gpio_output_disable;
  30
  31         u16 gpio_leds;
  32         u8 *led_states;
  33         unsigned int num_led_states;
  34 };
  35
  36 struct au8522_config {
  37         /* the demodulator's i2c address */
  38         u8 demod_address;
  39
  40         /* Return lock status based on tuner lock, or demod lock */
  41 #define AU8522_TUNERLOCKING 0
  42 #define AU8522_DEMODLOCKING 1
  43         u8 status_mode;
  44
  45         struct au8522_led_config *led_cfg;
  46
  47         enum au8522_if_freq vsb_if;
  48         enum au8522_if_freq qam_if;
  49 };
  50
  51 #if IS_REACHABLE(CONFIG_DVB_AU8522_DTV)
  52 extern struct dvb_frontend *au8522_attach(const struct au8522_config *config,
  53                                           struct i2c_adapter *i2c);
  54 #else
  55 static inline
  56 struct dvb_frontend *au8522_attach(const struct au8522_config *config,
  57                                    struct i2c_adapter *i2c)
  58 {
  59         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  60         return NULL;
  61 }
  62 #endif /* CONFIG_DVB_AU8522 */
  63
  64 /* Other modes may need to be added later */
  65 enum au8522_video_input {
  66         AU8522_COMPOSITE_CH1 = 1,
  67         AU8522_COMPOSITE_CH2,
  68         AU8522_COMPOSITE_CH3,
  69         AU8522_COMPOSITE_CH4,
  70         AU8522_COMPOSITE_CH4_SIF,
  71         AU8522_SVIDEO_CH13,
  72         AU8522_SVIDEO_CH24,
  73 };
  74
  75 enum au8522_audio_input {
  76         AU8522_AUDIO_NONE,
  77         AU8522_AUDIO_SIF,
  78 };
  79 #endif /* __AU8522_H__ */