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
  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 defined(CONFIG_DVB_AU8522) ||                               \
  64             (defined(CONFIG_DVB_AU8522_MODULE) && defined(MODULE))
  65 extern struct dvb_frontend *au8522_attach(const struct au8522_config *config,
  66                                           struct i2c_adapter *i2c);
  67 #else
  68 static inline
  69 struct dvb_frontend *au8522_attach(const struct au8522_config *config,
  70                                    struct i2c_adapter *i2c)
  71 {
  72         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  73         return NULL;
  74 }
  75 #endif /* CONFIG_DVB_AU8522 */
  76
  77 #endif /* __AU8522_H__ */
  78
  79 /*
  80  * Local variables:
  81  * c-basic-offset: 8
  82  */