LXR linux/drivers/media/dvb-frontends/nxt200x.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *    Support for NXT2002 and NXT2004 - VSB/QAM
   4 *
   5 *    Copyright (C) 2005 Kirk Lapray (kirk.lapray@gmail.com)
   6 *    based on nxt2002 by Taylor Jacob <rtjacob@earthlink.net>
   7 *    and nxt2004 by Jean-Francois Thibert (jeanfrancois@sagetv.com)
   8*/
   9
  10#ifndef NXT200X_H
  11#define NXT200X_H
  12
  13#include <linux/dvb/frontend.h>
  14#include <linux/firmware.h>
  15
  16typedef enum nxt_chip_t {
  17                NXTUNDEFINED,
  18                NXT2002,
  19                NXT2004
  20}nxt_chip_type;
  21
  22struct nxt200x_config
  23{
  24        /* the demodulator's i2c address */
  25        u8 demod_address;
  26
  27        /* need to set device param for start_dma */
  28        int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
  29};
  30
  31#if IS_REACHABLE(CONFIG_DVB_NXT200X)
  32extern struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
  33                                           struct i2c_adapter* i2c);
  34#else
  35static inline struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
  36                                           struct i2c_adapter* i2c)
  37{
  38        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  39        return NULL;
  40}
  41#endif // CONFIG_DVB_NXT200X
  42
  43#endif /* NXT200X_H */
  44