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/*
Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef CX24123_H
#define CX24123_H
#include <linux/dvb/frontend.h>
struct cx24123_config
{
/* the demodulator's i2c address */
u8 demod_address;
/* PLL maintenance */
int (*pll_init)(struct dvb_frontend* fe);
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
/* Need to set device param for start_dma */
int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
};
/* Various tuner defaults need to be established for a given symbol rate Sps */
struct
{
u32 symbolrate_low;
u32 symbolrate_high;
u32 VCAslope;
u32 VCAoffset;
u32 VGA1offset;
u32 VGA2offset;
u32 VCAprogdata;
u32 VGAprogdata;
} cx24123_AGC_vals[] =
{
{
.symbolrate_low = 1000000,
.symbolrate_high = 4999999,
.VCAslope = 0x07,
.VCAoffset = 0x0f,
.VGA1offset = 0x1f8,
.VGA2offset = 0x1f8,
.VGAprogdata = (2 << 18) | (0x1f8 << 9) | 0x1f8,
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x07,
},
{
.symbolrate_low = 5000000,
.symbolrate_high = 14999999,
.VCAslope = 0x1f,
.VCAoffset = 0x1f,
.VGA1offset = 0x1e0,
.VGA2offset = 0x180,
.VGAprogdata = (2 << 18) | (0x180 << 9) | 0x1e0,
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x1f,
},
{
.symbolrate_low = 15000000,
.symbolrate_high = 45000000,
.VCAslope = 0x3f,
.VCAoffset = 0x3f,
.VGA1offset = 0x180,
.VGA2offset = 0x100,
.VGAprogdata = (2 << 18) | (0x100 << 9) | 0x180,
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x3f,
},
};
/*
* Various tuner defaults need to be established for a given frequency kHz.
* fixme: The bounds on the bands do not match the doc in real life.
* fixme: Some of them have been moved, other might need adjustment.
*/
struct
{
u32 freq_low;
u32 freq_high;
u32 bandselect;
u32 VCOdivider;
u32 VCOnumber;
u32 progdata;
} cx24123_bandselect_vals[] =
{
{
.freq_low = 950000,
.freq_high = 1018999,
.bandselect = 0x40,
.VCOdivider = 4,
.VCOnumber = 7,
.progdata = (0 << 18) | (0 << 9) | 0x40,
},
{
.freq_low = 1019000,
.freq_high = 1074999,
.bandselect = 0x80,
.VCOdivider = 4,
.VCOnumber = 8,
.progdata = (0 << 18) | (0 << 9) | 0x80,
},
{
.freq_low = 1075000,
.freq_high = 1227999,
.bandselect = 0x01,
.VCOdivider = 2,
.VCOnumber = 1,
.progdata = (0 << 18) | (1 << 9) | 0x01,
},
{
.freq_low = 1228000,
.freq_high = 1349999,
.bandselect = 0x02,
.VCOdivider = 2,
.VCOnumber = 2,
.progdata = (0 << 18) | (1 << 9) | 0x02,
},
{
.freq_low = 1350000,
.freq_high = 1481999,
.bandselect = 0x04,
.VCOdivider = 2,
.VCOnumber = 3,
.progdata = (0 << 18) | (1 << 9) | 0x04,
},
{
.freq_low = 1482000,
.freq_high = 1595999,
.bandselect = 0x08,
.VCOdivider = 2,
.VCOnumber = 4,
.progdata = (0 << 18) | (1 << 9) | 0x08,
},
{
.freq_low = 1596000,
.freq_high = 1717999,
.bandselect = 0x10,
.VCOdivider = 2,
.VCOnumber = 5,
.progdata = (0 << 18) | (1 << 9) | 0x10,
},
{
.freq_low = 1718000,
.freq_high = 1855999,
.bandselect = 0x20,
.VCOdivider = 2,
.VCOnumber = 6,
.progdata = (0 << 18) | (1 << 9) | 0x20,
},
{
.freq_low = 1856000,
.freq_high = 2035999,
.bandselect = 0x40,
.VCOdivider = 2,
.VCOnumber = 7,
.progdata = (0 << 18) | (1 << 9) | 0x40,
},
{
.freq_low = 2036000,
.freq_high = 2149999,
.bandselect = 0x80,
.VCOdivider = 2,
.VCOnumber = 8,
.progdata = (0 << 18) | (1 << 9) | 0x80,
},
};
extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
struct i2c_adapter* i2c);
#endif /* CX24123_H */
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