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 tuner_operations {
  35         void (*set_tv_freq)(struct tuner *t, unsigned int freq);
  36         void (*set_radio_freq)(struct tuner *t, unsigned int freq);
  37         int  (*has_signal)(struct tuner *t);
  38         int  (*is_stereo)(struct tuner *t);
  39         int  (*get_afc)(struct tuner *t);
  40         void (*tuner_status)(struct tuner *t);
  41         void (*standby)(struct tuner *t);
  42         void (*release)(struct tuner *t);
  43 };
  44
  45 struct tuner {
  46         /* device */
  47         struct i2c_client i2c;
  48
  49         unsigned int type;      /* chip type */
  50
  51         unsigned int mode;
  52         unsigned int mode_mask; /* Combination of allowable modes */
  53
  54         unsigned int tv_freq;   /* keep track of the current settings */
  55         unsigned int radio_freq;
  56         unsigned int audmode;
  57         v4l2_std_id  std;
  58
  59         int          using_v4l2;
  60         void *priv;
  61
  62         struct dvb_frontend fe;
  63
  64         /* used by tda9887 */
  65         unsigned int       tda9887_config;
  66
  67         unsigned int config;
  68         int (*tuner_callback) (void *dev, int command,int arg);
  69
  70         struct tuner_operations ops;
  71 };
  72
  73 /* ------------------------------------------------------------------------ */
  74
  75 extern int tda9887_tuner_init(struct tuner *t);
  76
  77 /* ------------------------------------------------------------------------ */
  78
  79 #define tuner_warn(fmt, arg...) do {\
  80         printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  81                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  82 #define tuner_info(fmt, arg...) do {\
  83         printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  84                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  85 #define tuner_dbg(fmt, arg...) do {\
  86         extern int tuner_debug; \
  87         if (tuner_debug) \
  88                 printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  89                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  90
  91 #endif /* __TUNER_DRIVER_H__ */
  92
  93 /*
  94  * Overrides for Emacs so that we follow Linus's tabbing style.
  95  * ---------------------------------------------------------------------------
  96  * Local variables:
  97  * c-basic-offset: 8
  98  * End:
  99  */