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 enum tda10046_xtal {
  30         TDA10046_XTAL_4M,
  31         TDA10046_XTAL_16M,
  32 };
  33
  34 enum tda10046_agc {
  35         TDA10046_AGC_DEFAULT,           /* original configuration */
  36         TDA10046_AGC_IFO_AUTO_NEG,      /* IF AGC only, automatic, negtive */
  37         TDA10046_AGC_IFO_AUTO_POS,      /* IF AGC only, automatic, positive */
  38         TDA10046_AGC_TDA827X,       /* IF AGC only, special setup for tda827x */
  39 };
  40
  41 enum tda10046_if {
  42         TDA10046_FREQ_3617,             /* original config, 36,166 MHZ */
  43         TDA10046_FREQ_3613,             /* 36,13 MHZ */
  44         TDA10046_FREQ_045,              /* low IF, 4.0, 4.5, or 5.0 MHZ */
  45         TDA10046_FREQ_052,              /* low IF, 5.1667 MHZ for tda9889 */
  46 };
  47
  48 struct tda1004x_config
  49 {
  50         /* the demodulator's i2c address */
  51         u8 demod_address;
  52
  53         /* does the "inversion" need inverted? */
  54         u8 invert;
  55
  56         /* Does the OCLK signal need inverted? */
  57         u8 invert_oclk;
  58
  59         /* Xtal frequency, 4 or 16MHz*/
  60         enum tda10046_xtal xtal_freq;
  61
  62         /* IF frequency */
  63         enum tda10046_if if_freq;
  64
  65         /* AGC configuration */
  66         enum tda10046_agc agc_config;
  67
  68         /* PLL maintenance */
  69         int (*pll_init)(struct dvb_frontend* fe);
  70         void (*pll_sleep)(struct dvb_frontend* fe);
  71         int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
  72
  73         /* request firmware for device */
  74         /* set this to NULL if the card has a firmware EEPROM */
  75         int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
  76 };
  77
  78 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
  79                                             struct i2c_adapter* i2c);
  80
  81 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
  82                                             struct i2c_adapter* i2c);
  83
  84 extern int tda1004x_write_byte(struct dvb_frontend* fe, int reg, int data);
  85
  86 #endif // TDA1004X_H