drivers/media/dvb-frontends/zl10353.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Driver for Zarlink DVB-T ZL10353 demodulator
   4  *
   5  *  Copyright (C) 2006, 2007 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
   6  */
   7
   8 #ifndef ZL10353_H
   9 #define ZL10353_H
  10
  11 #include <linux/dvb/frontend.h>
  12
  13 struct zl10353_config
  14 {
  15         /* demodulator's I2C address */
  16         u8 demod_address;
  17
  18         /* frequencies in units of 0.1kHz */
  19         int adc_clock;  /* default: 450560 (45.056  MHz) */
  20         int if2;        /* default: 361667 (36.1667 MHz) */
  21
  22         /* set if no pll is connected to the secondary i2c bus */
  23         int no_tuner;
  24
  25         /* set if parallel ts output is required */
  26         int parallel_ts;
  27
  28         /* set if i2c_gate_ctrl disable is required */
  29         u8 disable_i2c_gate_ctrl:1;
  30
  31         /* clock control registers (0x51-0x54) */
  32         u8 clock_ctl_1;  /* default: 0x46 */
  33         u8 pll_0;        /* default: 0x15 */
  34 };
  35
  36 #if IS_REACHABLE(CONFIG_DVB_ZL10353)
  37 extern struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
  38                                            struct i2c_adapter *i2c);
  39 #else
  40 static inline struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
  41                                            struct i2c_adapter *i2c)
  42 {
  43         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  44         return NULL;
  45 }
  46 #endif /* CONFIG_DVB_ZL10353 */
  47
  48 #endif /* ZL10353_H */