drivers/media/dvb-frontends/m88rs2000.h

   1 /*
   2         Driver for M88RS2000 demodulator
   3
   4         This program is free software; you can redistribute it and/or modify
   5         it under the terms of the GNU General Public License as published by
   6         the Free Software Foundation; either version 2 of the License, or
   7         (at your option) any later version.
   8
   9         This program is distributed in the hope that it will be useful,
  10         but WITHOUT ANY WARRANTY; without even the implied warranty of
  11         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12         GNU General Public License for more details.
  13
  14         You should have received a copy of the GNU General Public License
  15         along with this program; if not, write to the Free Software
  16         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef M88RS2000_H
  21 #define M88RS2000_H
  22
  23 #include <linux/kconfig.h>
  24 #include <linux/dvb/frontend.h>
  25 #include "dvb_frontend.h"
  26
  27 struct m88rs2000_config {
  28         /* Demodulator i2c address */
  29         u8 demod_addr;
  30
  31         u8 *inittab;
  32
  33         /* minimum delay before retuning */
  34         int min_delay_ms;
  35
  36         int (*set_ts_params)(struct dvb_frontend *, int);
  37 };
  38
  39 enum {
  40         CALL_IS_SET_FRONTEND = 0x0,
  41         CALL_IS_READ,
  42 };
  43
  44 #if IS_REACHABLE(CONFIG_DVB_M88RS2000)
  45 extern struct dvb_frontend *m88rs2000_attach(
  46         const struct m88rs2000_config *config, struct i2c_adapter *i2c);
  47 #else
  48 static inline struct dvb_frontend *m88rs2000_attach(
  49         const struct m88rs2000_config *config, struct i2c_adapter *i2c)
  50 {
  51         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  52         return NULL;
  53 }
  54 #endif /* CONFIG_DVB_M88RS2000 */
  55
  56 #define RS2000_FE_CRYSTAL_KHZ 27000
  57
  58 enum {
  59         DEMOD_WRITE = 0x1,
  60         WRITE_DELAY = 0x10,
  61 };
  62 #endif /* M88RS2000_H */