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
  14 #ifndef _MXL5XX_H_
  15 #define _MXL5XX_H_
  16
  17 #include <linux/types.h>
  18 #include <linux/i2c.h>
  19
  20 #include <media/dvb_frontend.h>
  21
  22 struct mxl5xx_cfg {
  23         u8   adr;
  24         u8   type;
  25         u32  cap;
  26         u32  clk;
  27         u32  ts_clk;
  28
  29         u8  *fw;
  30         u32  fw_len;
  31
  32         int (*fw_read)(void *priv, u8 *buf, u32 len);
  33         void *fw_priv;
  34 };
  35
  36 #if IS_REACHABLE(CONFIG_DVB_MXL5XX)
  37
  38 extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
  39         struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
  40         int (**fn_set_input)(struct dvb_frontend *, int));
  41
  42 #else
  43
  44 static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
  45         struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
  46         int (**fn_set_input)(struct dvb_frontend *, int))
  47 {
  48         pr_warn("%s: driver disabled by Kconfig\n", __func__);
  49         return NULL;
  50 }
  51
  52 #endif /* CONFIG_DVB_MXL5XX */
  53
  54 #endif /* _MXL5XX_H_ */