diff options
Diffstat (limited to 'drivers/media/dvb/frontends/cx24123.h')
| -rw-r--r-- | drivers/media/dvb/frontends/cx24123.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/cx24123.h b/drivers/media/dvb/frontends/cx24123.h new file mode 100644 index 00000000000000..80b66a695261df --- /dev/null +++ b/drivers/media/dvb/frontends/cx24123.h @@ -0,0 +1,185 @@ +/* + 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 */ + |