LXR linux/drivers/media/dvb-frontends/lgdt3305.h

   1/*
   2 *    Support for LG Electronics LGDT3304 and LGDT3305 - VSB/QAM
   3 *
   4 *    Copyright (C) 2008, 2009, 2010 Michael Krufky <mkrufky@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 _LGDT3305_H_
  23#define _LGDT3305_H_
  24
  25#include <linux/kconfig.h>
  26#include <linux/i2c.h>
  27#include "dvb_frontend.h"
  28
  29
  30enum lgdt3305_mpeg_mode {
  31        LGDT3305_MPEG_PARALLEL = 0,
  32        LGDT3305_MPEG_SERIAL = 1,
  33};
  34
  35enum lgdt3305_tp_clock_edge {
  36        LGDT3305_TPCLK_RISING_EDGE = 0,
  37        LGDT3305_TPCLK_FALLING_EDGE = 1,
  38};
  39
  40enum lgdt3305_tp_valid_polarity {
  41        LGDT3305_TP_VALID_LOW = 0,
  42        LGDT3305_TP_VALID_HIGH = 1,
  43};
  44
  45enum lgdt_demod_chip_type {
  46        LGDT3305 = 0,
  47        LGDT3304 = 1,
  48};
  49
  50struct lgdt3305_config {
  51        u8 i2c_addr;
  52
  53        /* user defined IF frequency in KHz */
  54        u16 qam_if_khz;
  55        u16 vsb_if_khz;
  56
  57        /* AGC Power reference - defaults are used if left unset */
  58        u16 usref_8vsb;   /* default: 0x32c4 */
  59        u16 usref_qam64;  /* default: 0x5400 */
  60        u16 usref_qam256; /* default: 0x2a80 */
  61
  62        /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */
  63        unsigned int deny_i2c_rptr:1;
  64
  65        /* spectral inversion - 0:disabled 1:enabled */
  66        unsigned int spectral_inversion:1;
  67
  68        /* use RF AGC loop - 0:disabled 1:enabled */
  69        unsigned int rf_agc_loop:1;
  70
  71        enum lgdt3305_mpeg_mode mpeg_mode;
  72        enum lgdt3305_tp_clock_edge tpclk_edge;
  73        enum lgdt3305_tp_valid_polarity tpvalid_polarity;
  74        enum lgdt_demod_chip_type demod_chip;
  75};
  76
  77#if IS_ENABLED(CONFIG_DVB_LGDT3305)
  78extern
  79struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
  80                                     struct i2c_adapter *i2c_adap);
  81#else
  82static inline
  83struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config,
  84                                     struct i2c_adapter *i2c_adap)
  85{
  86        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  87        return NULL;
  88}
  89#endif /* CONFIG_DVB_LGDT3305 */
  90
  91#endif /* _LGDT3305_H_ */
  92