drivers/media/video/tuner-driver.h

   1 /*
   2     tuner-driver.h - interface for different tuners
   3
   4     Copyright (C) 1997 Markus Schroeder (schroedm@uni-duesseldorf.de)
   5     minor modifications by Ralph Metzler (rjkm@thp.uni-koeln.de)
   6
   7     This program is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     This program is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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 #ifndef __TUNER_DRIVER_H__
  23 #define __TUNER_DRIVER_H__
  24
  25 #include <linux/videodev2.h>
  26 #include <linux/i2c.h>
  27 #include "tuner-i2c.h"
  28 #include "dvb_frontend.h"
  29
  30 extern unsigned const int tuner_count;
  31
  32 struct tuner;
  33
  34 struct analog_tuner_ops {
  35         void (*set_tv_freq)(struct dvb_frontend *fe, unsigned int freq);
  36         void (*set_radio_freq)(struct dvb_frontend *fe, unsigned int freq);
  37         int  (*has_signal)(struct dvb_frontend *fe);
  38         int  (*is_stereo)(struct dvb_frontend *fe);
  39         int  (*get_afc)(struct dvb_frontend *fe);
  40         void (*tuner_status)(struct dvb_frontend *fe);
  41         void (*standby)(struct dvb_frontend *fe);
  42         void (*release)(struct dvb_frontend *fe);
  43         int  (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
  44 };
  45
  46 struct tuner {
  47         /* device */
  48         struct i2c_client *i2c;
  49         struct list_head list;  /* list of tuners */
  50
  51         unsigned int type;      /* chip type */
  52
  53         unsigned int mode;
  54         unsigned int mode_mask; /* Combination of allowable modes */
  55
  56         unsigned int tv_freq;   /* keep track of the current settings */
  57         unsigned int radio_freq;
  58         unsigned int audmode;
  59         v4l2_std_id  std;
  60
  61         int          using_v4l2;
  62
  63         struct dvb_frontend fe;
  64
  65         /* used by tda9887 */
  66         unsigned int       tda9887_config;
  67
  68         unsigned int config;
  69         int (*tuner_callback) (void *dev, int command,int arg);
  70 };
  71
  72 /* ------------------------------------------------------------------------ */
  73
  74 #define tuner_warn(fmt, arg...) do {                                    \
  75         printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX,                 \
  76                i2c_adapter_id(t->i2c->adapter), t->i2c->addr, ##arg);   \
  77          } while (0)
  78
  79 #define tuner_info(fmt, arg...) do {                                    \
  80         printk(KERN_INFO "%s %d-%04x: " fmt, PREFIX,                    \
  81                i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg);  \
  82          } while (0)
  83
  84 #define tuner_err(fmt, arg...) do {                                     \
  85         printk(KERN_ERR "%s %d-%04x: " fmt, PREFIX,                     \
  86                i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg);  \
  87          } while (0)
  88
  89 #define tuner_dbg(fmt, arg...) do {                                            \
  90         extern int tuner_debug;                                                \
  91         if (tuner_debug)                                                       \
  92                 printk(KERN_DEBUG "%s %d-%04x: " fmt, PREFIX,                  \
  93                        i2c_adapter_id(t->i2c->adapter), t->i2c->addr , ##arg); \
  94          } while (0)
  95
  96 #endif /* __TUNER_DRIVER_H__ */