drivers/media/dvb-frontends/cx24116.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver
   4
   5     Copyright (C) 2006 Steven Toth <stoth@linuxtv.com>
   6
   7 */
   8
   9 #ifndef CX24116_H
  10 #define CX24116_H
  11
  12 #include <linux/dvb/frontend.h>
  13
  14 struct cx24116_config {
  15         /* the demodulator's i2c address */
  16         u8 demod_address;
  17
  18         /* Need to set device param for start_dma */
  19         int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
  20
  21         /* Need to reset device during firmware loading */
  22         int (*reset_device)(struct dvb_frontend *fe);
  23
  24         /* Need to set MPEG parameters */
  25         u8 mpg_clk_pos_pol:0x02;
  26
  27         /* max bytes I2C provider can write at once */
  28         u16 i2c_wr_max;
  29 };
  30
  31 #if IS_REACHABLE(CONFIG_DVB_CX24116)
  32 extern struct dvb_frontend *cx24116_attach(
  33         const struct cx24116_config *config,
  34         struct i2c_adapter *i2c);
  35 #else
  36 static inline struct dvb_frontend *cx24116_attach(
  37         const struct cx24116_config *config,
  38         struct i2c_adapter *i2c)
  39 {
  40         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  41         return NULL;
  42 }
  43 #endif
  44
  45 #endif /* CX24116_H */