drivers/media/tuners/tda8290.h

   1 /*
   2     This program is free software; you can redistribute it and/or modify
   3     it under the terms of the GNU General Public License as published by
   4     the Free Software Foundation; either version 2 of the License, or
   5     (at your option) any later version.
   6
   7     This program is distributed in the hope that it will be useful,
   8     but WITHOUT ANY WARRANTY; without even the implied warranty of
   9     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10     GNU General Public License for more details.
  11
  12     You should have received a copy of the GNU General Public License
  13     along with this program; if not, write to the Free Software
  14     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  15 */
  16
  17 #ifndef __TDA8290_H__
  18 #define __TDA8290_H__
  19
  20 #include <linux/i2c.h>
  21 #include "dvb_frontend.h"
  22 #include "tda18271.h"
  23
  24 enum tda8290_lna {
  25         TDA8290_LNA_OFF = 0,
  26         TDA8290_LNA_GP0_HIGH_ON = 1,
  27         TDA8290_LNA_GP0_HIGH_OFF = 2,
  28         TDA8290_LNA_ON_BRIDGE = 3,
  29 };
  30
  31 struct tda829x_config {
  32         enum tda8290_lna lna_cfg;
  33
  34         unsigned int probe_tuner:1;
  35 #define TDA829X_PROBE_TUNER 0
  36 #define TDA829X_DONT_PROBE  1
  37         unsigned int no_i2c_gate:1;
  38         struct tda18271_std_map *tda18271_std_map;
  39 };
  40
  41 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA8290)
  42 extern int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr);
  43
  44 extern struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe,
  45                                            struct i2c_adapter *i2c_adap,
  46                                            u8 i2c_addr,
  47                                            struct tda829x_config *cfg);
  48 #else
  49 static inline int tda829x_probe(struct i2c_adapter *i2c_adap, u8 i2c_addr)
  50 {
  51         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  52         return -EINVAL;
  53 }
  54
  55 static inline struct dvb_frontend *tda829x_attach(struct dvb_frontend *fe,
  56                                                   struct i2c_adapter *i2c_adap,
  57                                                   u8 i2c_addr,
  58                                                   struct tda829x_config *cfg)
  59 {
  60         printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
  61                __func__);
  62         return NULL;
  63 }
  64 #endif
  65
  66 #endif /* __TDA8290_H__ */