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_HW_H__
  23 #define __TUNER_HW_H__
  24
  25 #include <linux/videodev2.h>
  26 #include <linux/i2c.h>
  27
  28 extern unsigned const int tuner_count;
  29
  30 struct tuner_operations {
  31         void (*set_tv_freq)(struct i2c_client *c, unsigned int freq);
  32         void (*set_radio_freq)(struct i2c_client *c, unsigned int freq);
  33         int  (*has_signal)(struct i2c_client *c);
  34         int  (*is_stereo)(struct i2c_client *c);
  35         int  (*get_afc)(struct i2c_client *c);
  36         void (*tuner_status)(struct i2c_client *c);
  37         void (*standby)(struct i2c_client *c);
  38         void (*release)(struct i2c_client *c);
  39 };
  40
  41 struct tuner {
  42         /* device */
  43         struct i2c_client i2c;
  44
  45         unsigned int type;      /* chip type */
  46
  47         unsigned int mode;
  48         unsigned int mode_mask; /* Combination of allowable modes */
  49
  50         unsigned int tv_freq;   /* keep track of the current settings */
  51         unsigned int radio_freq;
  52         unsigned int audmode;
  53         v4l2_std_id  std;
  54
  55         int          using_v4l2;
  56         void *priv;
  57
  58         /* used by tda9887 */
  59         unsigned int       tda9887_config;
  60
  61         unsigned int config;
  62         int (*tuner_callback) (void *dev, int command,int arg);
  63
  64         struct tuner_operations ops;
  65 };
  66
  67 /* ------------------------------------------------------------------------ */
  68
  69 extern int default_tuner_init(struct i2c_client *c);
  70
  71 extern int tda9887_tuner_init(struct i2c_client *c);
  72
  73 extern int microtune_init(struct i2c_client *c);
  74
  75 extern int tda8290_init(struct i2c_client *c);
  76 extern int tda8290_probe(struct i2c_client *c);
  77
  78 extern int tea5761_tuner_init(struct i2c_client *c);
  79 extern int tea5761_autodetection(struct i2c_client *c);
  80
  81 extern int tea5767_autodetection(struct i2c_client *c);
  82 extern int tea5767_tuner_init(struct i2c_client *c);
  83
  84 /* ------------------------------------------------------------------------ */
  85
  86 #define tuner_warn(fmt, arg...) do {\
  87         printk(KERN_WARNING "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  88                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  89 #define tuner_info(fmt, arg...) do {\
  90         printk(KERN_INFO "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  91                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  92 #define tuner_dbg(fmt, arg...) do {\
  93         extern int tuner_debug; \
  94         if (tuner_debug) \
  95                 printk(KERN_DEBUG "%s %d-%04x: " fmt, t->i2c.driver->driver.name, \
  96                         i2c_adapter_id(t->i2c.adapter), t->i2c.addr , ##arg); } while (0)
  97
  98 #endif /* __TUNER_HW_H__ */
  99
 100 /*
 101  * Overrides for Emacs so that we follow Linus's tabbing style.
 102  * ---------------------------------------------------------------------------
 103  * Local variables:
 104  * c-basic-offset: 8
 105  * End:
 106  */