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
  16 typedef enum nxt_chip_t {
  17                 NXTUNDEFINED,
  18                 NXT2002,
  19                 NXT2004
  20 }nxt_chip_type;
  21
  22 struct 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)
  32 extern struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
  33                                            struct i2c_adapter* i2c);
  34 #else
  35 static 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 */