drivers/media/dvb/frontends/tda1004x.h

   1   /*
   2      Driver for Philips tda1004xh OFDM Frontend
   3
   4      (c) 2004 Andrew de Quincey
   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      You should have received a copy of the GNU General Public License
  18      along with this program; if not, write to the Free Software
  19      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21    */
  22
  23 #ifndef TDA1004X_H
  24 #define TDA1004X_H
  25
  26 #include <linux/dvb/frontend.h>
  27 #include <linux/firmware.h>
  28
  29 struct tda1004x_config
  30 {
  31         /* the demodulator's i2c address */
  32         u8 demod_address;
  33
  34         /* does the "inversion" need inverted? */
  35         u8 invert;
  36
  37         /* Does the OCLK signal need inverted? */
  38         u8 invert_oclk;
  39
  40         /* value of N_I2C of the CONF_PLL3 register */
  41         u8 n_i2c;
  42
  43         /* PLL maintenance */
  44         int (*pll_init)(struct dvb_frontend* fe);
  45         int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
  46
  47         /* request firmware for device */
  48         int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
  49 };
  50
  51 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
  52                                             struct i2c_adapter* i2c);
  53
  54 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
  55                                             struct i2c_adapter* i2c);
  56
  57 extern int tda1004x_write_byte(struct dvb_frontend* fe, int reg, int data);
  58
  59 #endif // TDA1004X_H