z0194a.h
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/* z0194a.h Sharp z0194a tuner support
*
* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
*
* 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, version 2.
*
* see Documentation/dvb/README.dvb-usb for more information
*/
#ifndef Z0194A
#define Z0194A
static int sharp_z0194a_set_symbol_rate(struct dvb_frontend *fe,
u32 srate, u32 ratio)
{
u8 aclk = 0;
u8 bclk = 0;
if (srate < 1500000) {
aclk = 0xb7; bclk = 0x47; }
else if (srate < 3000000) {
aclk = 0xb7; bclk = 0x4b; }
else if (srate < 7000000) {
aclk = 0xb7; bclk = 0x4f; }
else if (srate < 14000000) {
aclk = 0xb7; bclk = 0x53; }
else if (srate < 30000000) {
aclk = 0xb6; bclk = 0x53; }
else if (srate < 45000000) {
aclk = 0xb4; bclk = 0x51; }
stv0299_writereg(fe, 0x13, aclk);
stv0299_writereg(fe, 0x14, bclk);
stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
stv0299_writereg(fe, 0x21, (ratio) & 0xf0);
return 0;
}
static u8 sharp_z0194a_inittab[] = {
0x01, 0x15,
0x02, 0x30,
0x03, 0x00,
0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */
0x06, 0x40, /* DAC not used, set to high impendance mode */
0x07, 0x00, /* DAC LSB */
0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
0x09, 0x00, /* FIFO */
0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */
0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */
0x10, 0x3f, /* AGC2 0x3d */
0x11, 0x84,
0x12, 0xb9,
0x15, 0xc9, /* lock detector threshold */
0x16, 0x00,
0x17, 0x00,
0x18, 0x00,
0x19, 0x00,
0x1a, 0x00,
0x1f, 0x50,
0x20, 0x00,
0x21, 0x00,
0x22, 0x00,
0x23, 0x00,
0x28, 0x00, /* out imp: normal out type: parallel FEC mode:0 */
0x29, 0x1e, /* 1/2 threshold */
0x2a, 0x14, /* 2/3 threshold */
0x2b, 0x0f, /* 3/4 threshold */
0x2c, 0x09, /* 5/6 threshold */
0x2d, 0x05, /* 7/8 threshold */
0x2e, 0x01,
0x31, 0x1f, /* test all FECs */
0x32, 0x19, /* viterbi and synchro search */
0x33, 0xfc, /* rs control */
0x34, 0x93, /* error control */
0x0f, 0x52,
0xff, 0xff
};
#endif