drivers/media/dvb-frontends/dib3000.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * public header file of the frontend drivers for mobile DVB-T demodulators
   4  * DiBcom 3000M-B and DiBcom 3000P/M-C (http://www.dibcom.fr/)
   5  *
   6  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
   7  *
   8  * based on GPL code from DibCom, which has
   9  *
  10  * Copyright (C) 2004 Amaury Demol for DiBcom
  11  *
  12  * Acknowledgements
  13  *
  14  *  Amaury Demol from DiBcom for providing specs and driver
  15  *  sources, on which this driver (and the dvb-dibusb) are based.
  16  *
  17  * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
  18  */
  19
  20 #ifndef DIB3000_H
  21 #define DIB3000_H
  22
  23 #include <linux/dvb/frontend.h>
  24
  25 struct dib3000_config
  26 {
  27         /* the demodulator's i2c address */
  28         u8 demod_address;
  29 };
  30
  31 struct dib_fe_xfer_ops
  32 {
  33         /* pid and transfer handling is done in the demodulator */
  34         int (*pid_parse)(struct dvb_frontend *fe, int onoff);
  35         int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
  36         int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
  37         int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
  38 };
  39
  40 #if IS_REACHABLE(CONFIG_DVB_DIB3000MB)
  41 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
  42                                              struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops);
  43 #else
  44 static inline struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
  45                                              struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
  46 {
  47         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  48         return NULL;
  49 }
  50 #endif // CONFIG_DVB_DIB3000MB
  51
  52 #endif // DIB3000_H