drivers/media/dvb-frontends/cxd2880/cxd2880.h

   1 /*
   2  * cxd2880.h
   3  * Sony CXD2880 DVB-T2/T tuner + demodulator driver public definitions
   4  *
   5  * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; version 2 of the License.
  10  *
  11  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  12  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  14  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  15  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  16  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  17  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  18  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  19  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  20  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #ifndef CXD2880_H
  27 #define CXD2880_H
  28
  29 struct cxd2880_config {
  30         struct spi_device *spi;
  31         struct mutex *spi_mutex; /* For SPI access exclusive control */
  32 };
  33
  34 #if IS_REACHABLE(CONFIG_DVB_CXD2880)
  35 extern struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe,
  36                                         struct cxd2880_config *cfg);
  37 #else
  38 static inline struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe,
  39                                         struct cxd2880_config *cfg)
  40 {
  41         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  42         return NULL;
  43 }
  44 #endif /* CONFIG_DVB_CXD2880 */
  45
  46 #endif /* CXD2880_H */