drivers/media/dvb/frontends/cx24123.h

   1 /*
   2     Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
   3
   4     Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
   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     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #ifndef CX24123_H
  22 #define CX24123_H
  23
  24 #include <linux/dvb/frontend.h>
  25
  26 struct cx24123_config
  27 {
  28         /* the demodulator's i2c address */
  29         u8 demod_address;
  30
  31         /* PLL maintenance */
  32         int (*pll_init)(struct dvb_frontend* fe);
  33         int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
  34
  35         /* Need to set device param for start_dma */
  36         int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
  37 };
  38
  39 /* Various tuner defaults need to be established for a given symbol rate Sps */
  40 struct
  41 {
  42         u32 symbolrate_low;
  43         u32 symbolrate_high;
  44         u32 VCAslope;
  45         u32 VCAoffset;
  46         u32 VGA1offset;
  47         u32 VGA2offset;
  48         u32 VCAprogdata;
  49         u32 VGAprogdata;
  50 } cx24123_AGC_vals[] =
  51 {
  52         {
  53                 .symbolrate_low         = 1000000,
  54                 .symbolrate_high        = 4999999,
  55                 .VCAslope               = 0x07,
  56                 .VCAoffset              = 0x0f,
  57                 .VGA1offset             = 0x1f8,
  58                 .VGA2offset             = 0x1f8,
  59                 .VGAprogdata            = (2 << 18) | (0x1f8 << 9) | 0x1f8,
  60                 .VCAprogdata            = (4 << 18) | (0x07 << 9) | 0x07,
  61         },
  62         {
  63                 .symbolrate_low         =  5000000,
  64                 .symbolrate_high        = 14999999,
  65                 .VCAslope               = 0x1f,
  66                 .VCAoffset              = 0x1f,
  67                 .VGA1offset             = 0x1e0,
  68                 .VGA2offset             = 0x180,
  69                 .VGAprogdata            = (2 << 18) | (0x180 << 9) | 0x1e0,
  70                 .VCAprogdata            = (4 << 18) | (0x07 << 9) | 0x1f,
  71         },
  72         {
  73                 .symbolrate_low         = 15000000,
  74                 .symbolrate_high        = 45000000,
  75                 .VCAslope               = 0x3f,
  76                 .VCAoffset              = 0x3f,
  77                 .VGA1offset             = 0x180,
  78                 .VGA2offset             = 0x100,
  79                 .VGAprogdata            = (2 << 18) | (0x100 << 9) | 0x180,
  80                 .VCAprogdata            = (4 << 18) | (0x07 << 9) | 0x3f,
  81         },
  82 };
  83
  84 /*
  85  * Various tuner defaults need to be established for a given frequency kHz.
  86  * fixme: The bounds on the bands do not match the doc in real life.
  87  * fixme: Some of them have been moved, other might need adjustment.
  88  */
  89 struct
  90 {
  91         u32 freq_low;
  92         u32 freq_high;
  93         u32 bandselect;
  94         u32 VCOdivider;
  95         u32 VCOnumber;
  96         u32 progdata;
  97 } cx24123_bandselect_vals[] =
  98 {
  99         {
 100                 .freq_low       = 950000,
 101                 .freq_high      = 1018999,
 102                 .bandselect     = 0x40,
 103                 .VCOdivider     = 4,
 104                 .VCOnumber      = 7,
 105                 .progdata       = (0 << 18) | (0 << 9) | 0x40,
 106         },
 107         {
 108                 .freq_low       = 1019000,
 109                 .freq_high      = 1074999,
 110                 .bandselect     = 0x80,
 111                 .VCOdivider     = 4,
 112                 .VCOnumber      = 8,
 113                 .progdata       = (0 << 18) | (0 << 9) | 0x80,
 114         },
 115         {
 116                 .freq_low       = 1075000,
 117                 .freq_high      = 1227999,
 118                 .bandselect     = 0x01,
 119                 .VCOdivider     = 2,
 120                 .VCOnumber      = 1,
 121                 .progdata       = (0 << 18) | (1 << 9) | 0x01,
 122         },
 123         {
 124                 .freq_low       = 1228000,
 125                 .freq_high      = 1349999,
 126                 .bandselect     = 0x02,
 127                 .VCOdivider     = 2,
 128                 .VCOnumber      = 2,
 129                 .progdata       = (0 << 18) | (1 << 9) | 0x02,
 130         },
 131         {
 132                 .freq_low       = 1350000,
 133                 .freq_high      = 1481999,
 134                 .bandselect     = 0x04,
 135                 .VCOdivider     = 2,
 136                 .VCOnumber      = 3,
 137                 .progdata       = (0 << 18) | (1 << 9) | 0x04,
 138         },
 139         {
 140                 .freq_low       = 1482000,
 141                 .freq_high      = 1595999,
 142                 .bandselect     = 0x08,
 143                 .VCOdivider     = 2,
 144                 .VCOnumber      = 4,
 145                 .progdata       = (0 << 18) | (1 << 9) | 0x08,
 146         },
 147         {
 148                 .freq_low       = 1596000,
 149                 .freq_high      = 1717999,
 150                 .bandselect     = 0x10,
 151                 .VCOdivider     = 2,
 152                 .VCOnumber      = 5,
 153                 .progdata       = (0 << 18) | (1 << 9) | 0x10,
 154         },
 155         {
 156                 .freq_low       = 1718000,
 157                 .freq_high      = 1855999,
 158                 .bandselect     = 0x20,
 159                 .VCOdivider     = 2,
 160                 .VCOnumber      = 6,
 161                 .progdata       = (0 << 18) | (1 << 9) | 0x20,
 162         },
 163         {
 164                 .freq_low       = 1856000,
 165                 .freq_high      = 2035999,
 166                 .bandselect     = 0x40,
 167                 .VCOdivider     = 2,
 168                 .VCOnumber      = 7,
 169                 .progdata       = (0 << 18) | (1 << 9) | 0x40,
 170         },
 171         {
 172                 .freq_low       = 2036000,
 173                 .freq_high      = 2149999,
 174                 .bandselect     = 0x80,
 175                 .VCOdivider     = 2,
 176                 .VCOnumber      = 8,
 177                 .progdata       = (0 << 18) | (1 << 9) | 0x80,
 178         },
 179 };
 180
 181 extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
 182                                            struct i2c_adapter* i2c);
 183
 184 #endif /* CX24123_H */
 185