drivers/media/dvb-frontends/cxd2841er.h

   1 /*
   2  * cxd2841er.h
   3  *
   4  * Sony CXD2441ER digital demodulator driver public definitions
   5  *
   6  * Copyright 2012 Sony Corporation
   7  * Copyright (C) 2014 NetUP Inc.
   8  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
   9  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20   */
  21
  22 #ifndef CXD2841ER_H
  23 #define CXD2841ER_H
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 enum cxd2841er_xtal {
  28         SONY_XTAL_20500, /* 20.5 MHz */
  29         SONY_XTAL_24000, /* 24 MHz */
  30         SONY_XTAL_41000 /* 41 MHz */
  31 };
  32
  33 struct cxd2841er_config {
  34         u8      i2c_addr;
  35         enum cxd2841er_xtal     xtal;
  36 };
  37
  38 #if IS_REACHABLE(CONFIG_DVB_CXD2841ER)
  39 extern struct dvb_frontend *cxd2841er_attach_s(struct cxd2841er_config *cfg,
  40                                                struct i2c_adapter *i2c);
  41
  42 extern struct dvb_frontend *cxd2841er_attach_t_c(struct cxd2841er_config *cfg,
  43                                                struct i2c_adapter *i2c);
  44 #else
  45 static inline struct dvb_frontend *cxd2841er_attach_s(
  46                                         struct cxd2841er_config *cfg,
  47                                         struct i2c_adapter *i2c)
  48 {
  49         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  50         return NULL;
  51 }
  52
  53 static inline struct dvb_frontend *cxd2841er_attach_t_c(
  54                 struct cxd2841er_config *cfg, struct i2c_adapter *i2c)
  55 {
  56         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  57         return NULL;
  58 }
  59
  60 #endif
  61
  62 #endif