drivers/media/dvb-frontends/zl10353.h

   1 /*
   2  *  Driver for Zarlink DVB-T ZL10353 demodulator
   3  *
   4  *  Copyright (C) 2006, 2007 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
   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  *
  15  *  GNU General Public License for more details.
  16  */
  17
  18 #ifndef ZL10353_H
  19 #define ZL10353_H
  20
  21 #include <linux/dvb/frontend.h>
  22
  23 struct zl10353_config
  24 {
  25         /* demodulator's I2C address */
  26         u8 demod_address;
  27
  28         /* frequencies in units of 0.1kHz */
  29         int adc_clock;  /* default: 450560 (45.056  MHz) */
  30         int if2;        /* default: 361667 (36.1667 MHz) */
  31
  32         /* set if no pll is connected to the secondary i2c bus */
  33         int no_tuner;
  34
  35         /* set if parallel ts output is required */
  36         int parallel_ts;
  37
  38         /* set if i2c_gate_ctrl disable is required */
  39         u8 disable_i2c_gate_ctrl:1;
  40
  41         /* clock control registers (0x51-0x54) */
  42         u8 clock_ctl_1;  /* default: 0x46 */
  43         u8 pll_0;        /* default: 0x15 */
  44 };
  45
  46 #if IS_REACHABLE(CONFIG_DVB_ZL10353)
  47 extern struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
  48                                            struct i2c_adapter *i2c);
  49 #else
  50 static inline struct dvb_frontend* zl10353_attach(const struct zl10353_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 /* CONFIG_DVB_ZL10353 */
  57
  58 #endif /* ZL10353_H */