drivers/media/dvb-frontends/mxl5xx.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Driver for the MaxLinear MxL5xx family of tuners/demods
   4  *
   5  * Copyright (C) 2014-2015 Ralph Metzler <rjkm@metzlerbros.de>
   6  *                         Marcus Metzler <mocm@metzlerbros.de>
   7  *                         developed for Digital Devices GmbH
   8  *
   9  * based on code:
  10  * Copyright (c) 2011-2013 MaxLinear, Inc. All rights reserved
  11  * which was released under GPL V2
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * version 2, as published by the Free Software Foundation.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  */
  22
  23 #ifndef _MXL5XX_H_
  24 #define _MXL5XX_H_
  25
  26 #include <linux/types.h>
  27 #include <linux/i2c.h>
  28
  29 #include <media/dvb_frontend.h>
  30
  31 struct mxl5xx_cfg {
  32         u8   adr;
  33         u8   type;
  34         u32  cap;
  35         u32  clk;
  36         u32  ts_clk;
  37
  38         u8  *fw;
  39         u32  fw_len;
  40
  41         int (*fw_read)(void *priv, u8 *buf, u32 len);
  42         void *fw_priv;
  43 };
  44
  45 #if IS_REACHABLE(CONFIG_DVB_MXL5XX)
  46
  47 extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
  48         struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
  49         int (**fn_set_input)(struct dvb_frontend *, int));
  50
  51 #else
  52
  53 static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
  54         struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
  55         int (**fn_set_input)(struct dvb_frontend *, int))
  56 {
  57         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  58         return NULL;
  59 }
  60
  61 #endif /* CONFIG_DVB_MXL5XX */
  62
  63 #endif /* _MXL5XX_H_ */