kernel/2.6.29.6-aldebaran-rt/drivers/media/common/tuners/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
  30         /* EP3[4:3] */
  31         unsigned int agc_mode:2;
  32         /* EP3[2:0] */
  33         unsigned int std:3;
  34         /* EP4[7] */
  35         unsigned int fm_rfn:1;
  36         /* EP4[4:2] */
  37         unsigned int if_lvl:3;
  38         /* EB22[6:0] */
  39         unsigned int rfagc_top:7;
  40 };
  41
  42 struct tda18271_std_map {
  43         struct tda18271_std_map_item fm_radio;
  44         struct tda18271_std_map_item atv_b;
  45         struct tda18271_std_map_item atv_dk;
  46         struct tda18271_std_map_item atv_gh;
  47         struct tda18271_std_map_item atv_i;
  48         struct tda18271_std_map_item atv_l;
  49         struct tda18271_std_map_item atv_lc;
  50         struct tda18271_std_map_item atv_mn;
  51         struct tda18271_std_map_item atsc_6;
  52         struct tda18271_std_map_item dvbt_6;
  53         struct tda18271_std_map_item dvbt_7;
  54         struct tda18271_std_map_item dvbt_8;
  55         struct tda18271_std_map_item qam_6;
  56         struct tda18271_std_map_item qam_8;
  57 };
  58
  59 enum tda18271_role {
  60         TDA18271_MASTER = 0,
  61         TDA18271_SLAVE,
  62 };
  63
  64 enum tda18271_i2c_gate {
  65         TDA18271_GATE_AUTO = 0,
  66         TDA18271_GATE_ANALOG,
  67         TDA18271_GATE_DIGITAL,
  68 };
  69
  70 struct tda18271_config {
  71         /* override default if freq / std settings (optional) */
  72         struct tda18271_std_map *std_map;
  73
  74         /* master / slave tuner: master uses main pll, slave uses cal pll */
  75         enum tda18271_role role;
  76
  77         /* use i2c gate provided by analog or digital demod */
  78         enum tda18271_i2c_gate gate;
  79
  80         /* some i2c providers cant write all 39 registers at once */
  81         unsigned int small_i2c:1;
  82 };
  83
  84 #if defined(CONFIG_MEDIA_TUNER_TDA18271) || (defined(CONFIG_MEDIA_TUNER_TDA18271_MODULE) && defined(MODULE))
  85 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
  86                                             struct i2c_adapter *i2c,
  87                                             struct tda18271_config *cfg);
  88 #else
  89 static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
  90                                                    u8 addr,
  91                                                    struct i2c_adapter *i2c,
  92                                                    struct tda18271_config *cfg)
  93 {
  94         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  95         return NULL;
  96 }
  97 #endif
  98
  99 #endif /* __TDA18271_H__ */