drivers/media/dvb-frontends/cx24116.h

   1 /*
   2     Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver
   3
   4     Copyright (C) 2006 Steven Toth <stoth@linuxtv.com>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #ifndef CX24116_H
  22 #define CX24116_H
  23
  24 #include <linux/kconfig.h>
  25 #include <linux/dvb/frontend.h>
  26
  27 struct cx24116_config {
  28         /* the demodulator's i2c address */
  29         u8 demod_address;
  30
  31         /* Need to set device param for start_dma */
  32         int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
  33
  34         /* Need to reset device during firmware loading */
  35         int (*reset_device)(struct dvb_frontend *fe);
  36
  37         /* Need to set MPEG parameters */
  38         u8 mpg_clk_pos_pol:0x02;
  39
  40         /* max bytes I2C provider can write at once */
  41         u16 i2c_wr_max;
  42 };
  43
  44 #if IS_REACHABLE(CONFIG_DVB_CX24116)
  45 extern struct dvb_frontend *cx24116_attach(
  46         const struct cx24116_config *config,
  47         struct i2c_adapter *i2c);
  48 #else
  49 static inline struct dvb_frontend *cx24116_attach(
  50         const struct cx24116_config *config,
  51         struct i2c_adapter *i2c)
  52 {
  53         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  54         return NULL;
  55 }
  56 #endif
  57
  58 #endif /* CX24116_H */