release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/media/dvb/frontends/dib0070.h

   1 /*
   2  * Linux-DVB Driver for DiBcom's DiB0070 base-band RF Tuner.
   3  *
   4  * Copyright (C) 2005-7 DiBcom (http://www.dibcom.fr/)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  *      modify it under the terms of the GNU General Public License as
   8  *      published by the Free Software Foundation, version 2.
   9  */
  10 #ifndef DIB0070_H
  11 #define DIB0070_H
  12
  13 struct dvb_frontend;
  14 struct i2c_adapter;
  15
  16 #define DEFAULT_DIB0070_I2C_ADDRESS 0x60
  17
  18 struct dib0070_wbd_gain_cfg {
  19         u16 freq;
  20         u16 wbd_gain_val;
  21 };
  22
  23 struct dib0070_config {
  24         u8 i2c_address;
  25
  26         /* tuner pins controlled externally */
  27         int (*reset) (struct dvb_frontend *, int);
  28         int (*sleep) (struct dvb_frontend *, int);
  29
  30         /*  offset in kHz */
  31         int freq_offset_khz_uhf;
  32         int freq_offset_khz_vhf;
  33
  34         u8 osc_buffer_state;    /* 0= normal, 1= tri-state */
  35         u32 clock_khz;
  36         u8 clock_pad_drive;     /* (Drive + 1) * 2mA */
  37
  38         u8 invert_iq;           /* invert Q - in case I or Q is inverted on the board */
  39
  40         u8 force_crystal_mode;  /* if == 0 -> decision is made in the driver default: <24 -> 2, >=24 -> 1 */
  41
  42         u8 flip_chip;
  43         u8 enable_third_order_filter;
  44         u8 charge_pump;
  45
  46         const struct dib0070_wbd_gain_cfg *wbd_gain;
  47
  48         u8 vga_filter;
  49 };
  50
  51 #if defined(CONFIG_DVB_TUNER_DIB0070) || (defined(CONFIG_DVB_TUNER_DIB0070_MODULE) && \
  52         defined(MODULE))
  53 extern struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0070_config *cfg);
  54 extern u16 dib0070_wbd_offset(struct dvb_frontend *);
  55 extern void dib0070_ctrl_agc_filter(struct dvb_frontend *, u8 open);
  56 extern u8 dib0070_get_rf_output(struct dvb_frontend *fe);
  57 extern int dib0070_set_rf_output(struct dvb_frontend *fe, u8 no);
  58 #else
  59 static inline struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0070_config *cfg)
  60 {
  61         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  62         return NULL;
  63 }
  64
  65 static inline u16 dib0070_wbd_offset(struct dvb_frontend *fe)
  66 {
  67         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  68         return 0;
  69 }
  70
  71 static inline void dib0070_ctrl_agc_filter(struct dvb_frontend *fe, u8 open)
  72 {
  73         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  74 }
  75 #endif
  76
  77 #endif