LXR linux/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
  31struct 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
  47extern 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
  53static 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_ */
  64