drivers/media/dvb-frontends/m88rs2000.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3         Driver for M88RS2000 demodulator
   4
   5
   6 */
   7
   8 #ifndef M88RS2000_H
   9 #define M88RS2000_H
  10
  11 #include <linux/dvb/frontend.h>
  12 #include <media/dvb_frontend.h>
  13
  14 struct m88rs2000_config {
  15         /* Demodulator i2c address */
  16         u8 demod_addr;
  17
  18         u8 *inittab;
  19
  20         /* minimum delay before retuning */
  21         int min_delay_ms;
  22
  23         int (*set_ts_params)(struct dvb_frontend *, int);
  24 };
  25
  26 enum {
  27         CALL_IS_SET_FRONTEND = 0x0,
  28         CALL_IS_READ,
  29 };
  30
  31 #if IS_REACHABLE(CONFIG_DVB_M88RS2000)
  32 extern struct dvb_frontend *m88rs2000_attach(
  33         const struct m88rs2000_config *config, struct i2c_adapter *i2c);
  34 #else
  35 static inline struct dvb_frontend *m88rs2000_attach(
  36         const struct m88rs2000_config *config, struct i2c_adapter *i2c)
  37 {
  38         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  39         return NULL;
  40 }
  41 #endif /* CONFIG_DVB_M88RS2000 */
  42
  43 #define RS2000_FE_CRYSTAL_KHZ 27000
  44
  45 enum {
  46         DEMOD_WRITE = 0x1,
  47         WRITE_DELAY = 0x10,
  48 };
  49 #endif /* M88RS2000_H */