drivers/media/dvb/frontends/tda18271.h

   1 /*
   2     tda18271.h - header for the Philips / NXP TDA18271 silicon tuner
   3
   4     Copyright (C) 2007, 2008 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 #ifndef __TDA18271_H__
  22 #define __TDA18271_H__
  23
  24 #include <linux/i2c.h>
  25 #include "dvb_frontend.h"
  26
  27 struct tda18271_std_map_item {
  28         u16 if_freq;
  29         u8 std_bits;
  30 };
  31
  32 struct tda18271_std_map {
  33         struct tda18271_std_map_item fm_radio;
  34         struct tda18271_std_map_item atv_b;
  35         struct tda18271_std_map_item atv_dk;
  36         struct tda18271_std_map_item atv_gh;
  37         struct tda18271_std_map_item atv_i;
  38         struct tda18271_std_map_item atv_l;
  39         struct tda18271_std_map_item atv_lc;
  40         struct tda18271_std_map_item atv_mn;
  41         struct tda18271_std_map_item atsc_6;
  42         struct tda18271_std_map_item dvbt_6;
  43         struct tda18271_std_map_item dvbt_7;
  44         struct tda18271_std_map_item dvbt_8;
  45         struct tda18271_std_map_item qam_6;
  46         struct tda18271_std_map_item qam_8;
  47 };
  48
  49 enum tda18271_i2c_gate {
  50         TDA18271_GATE_AUTO = 0,
  51         TDA18271_GATE_ANALOG,
  52         TDA18271_GATE_DIGITAL,
  53 };
  54
  55 struct tda18271_config {
  56         /* override default if freq / std settings (optional) */
  57         struct tda18271_std_map *std_map;
  58
  59         /* use i2c gate provided by analog or digital demod */
  60         enum tda18271_i2c_gate gate;
  61 };
  62
  63 #if defined(CONFIG_DVB_TDA18271) || (defined(CONFIG_DVB_TDA18271_MODULE) && defined(MODULE))
  64 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
  65                                             struct i2c_adapter *i2c,
  66                                             struct tda18271_config *cfg);
  67 #else
  68 static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
  69                                                    u8 addr,
  70                                                    struct i2c_adapter *i2c,
  71                                                    struct tda18271_config *cfg)
  72 {
  73         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
  74         return NULL;
  75 }
  76 #endif
  77
  78 #endif /* __TDA18271_H__ */