LXR linux/drivers/media/dvb-frontends/au8522.h

   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
  27enum au8522_if_freq {
  28        AU8522_IF_6MHZ = 0,
  29        AU8522_IF_4MHZ,
  30        AU8522_IF_3_25MHZ,
  31};
  32
  33struct 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
  48struct 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)
  64extern struct dvb_frontend *au8522_attach(const struct au8522_config *config,
  65                                          struct i2c_adapter *i2c);
  66#else
  67static inline
  68struct 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 */
  77enum 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
  87enum au8522_audio_input {
  88        AU8522_AUDIO_NONE,
  89        AU8522_AUDIO_SIF,
  90};
  91#endif /* __AU8522_H__ */
  92