/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
*
* the project's page is at https://linuxtv.org
*/
#ifndef BSRU6_H
#define BSRU6_H
static u8 alps_bsru6_inittab[] = {
0 x01,
0 x15,
0 x02,
0 x30,
0 x03,
0 x00,
0 x04,
0 x7d,
/* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
0 x05,
0 x35,
/* I2CT = 0, SCLT = 1, SDAT = 1 */
0 x06,
0 x40,
/* DAC not used, set to high impendance mode */
0 x07,
0 x00,
/* DAC LSB */
0 x08,
0 x40,
/* DiSEqC off, LNB power on OP2/LOCK pin on */
0 x09,
0 x00,
/* FIFO */
0 x0c,
0 x51,
/* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
0 x0d,
0 x82,
/* DC offset compensation = ON, beta_agc1 = 2 */
0 x0e,
0 x23,
/* alpha_tmg = 2, beta_tmg = 3 */
0 x10,
0 x3f,
// AGC2 0x3d
0 x11,
0 x84,
0 x12,
0 xb9,
0 x15,
0 xc9,
// lock detector threshold
0 x16,
0 x00,
0 x17,
0 x00,
0 x18,
0 x00,
0 x19,
0 x00,
0 x1a,
0 x00,
0 x1f,
0 x50,
0 x20,
0 x00,
0 x21,
0 x00,
0 x22,
0 x00,
0 x23,
0 x00,
0 x28,
0 x00,
// out imp: normal out type: parallel FEC mode:0
0 x29,
0 x1e,
// 1/2 threshold
0 x2a,
0 x14,
// 2/3 threshold
0 x2b,
0 x0f,
// 3/4 threshold
0 x2c,
0 x09,
// 5/6 threshold
0 x2d,
0 x05,
// 7/8 threshold
0 x2e,
0 x01,
0 x31,
0 x1f,
// test all FECs
0 x32,
0 x19,
// viterbi and synchro search
0 x33,
0 xfc,
// rs control
0 x34,
0 x93,
// error control
0 x0f,
0 x52,
0 xff,
0 xff
};
static int alps_bsru6_set_symbol_rate(
struct dvb_frontend *fe, u32 srate, u32 ratio)
{
u8 aclk =
0 ;
u8 bclk =
0 ;
if (srate <
1500000 ) {
aclk =
0 xb7;
bclk =
0 x47;
}
else if (srate <
3000000 ) {
aclk =
0 xb7;
bclk =
0 x4b;
}
else if (srate <
7000000 ) {
aclk =
0 xb7;
bclk =
0 x4f;
}
else if (srate <
14000000 ) {
aclk =
0 xb7;
bclk =
0 x53;
}
else if (srate <
30000000 ) {
aclk =
0 xb6;
bclk =
0 x53;
}
else if (srate <
45000000 ) {
aclk =
0 xb4;
bclk =
0 x51;
}
stv0299_writereg(fe,
0 x13, aclk);
stv0299_writereg(fe,
0 x14, bclk);
stv0299_writereg(fe,
0 x1f, (ratio >>
16 ) &
0 xff);
stv0299_writereg(fe,
0 x20, (ratio >>
8 ) &
0 xff);
stv0299_writereg(fe,
0 x21, ratio &
0 xf0);
return 0 ;
}
static int alps_bsru6_tuner_set_params(
struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
u8 buf[
4 ];
u32 div;
struct i2c_msg msg = { .addr =
0 x61, .flags =
0 , .buf = buf, .len =
sizeof (buf) };
struct i2c_adapter *i2c = fe->tuner_priv;
if ((p->frequency <
950000 ) || (p->frequency >
2150000 ))
return -EINVAL;
div = (p->frequency + (
125 -
1 )) /
125 ;
/* round correctly */
buf[
0 ] = (div >>
8 ) &
0 x7f;
buf[
1 ] = div &
0 xff;
buf[
2 ] =
0 x80 | ((div &
0 x18000) >>
10 ) |
4 ;
buf[
3 ] =
0 xC4;
if (p->frequency >
1530000 )
buf[
3 ] =
0 xc0;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe,
1 );
if (i2c_transfer(i2c, &msg,
1 ) !=
1 )
return -EIO;
return 0 ;
}
static struct stv0299_config alps_bsru6_config = {
.demod_address =
0 x68,
.inittab = alps_bsru6_inittab,
.mclk =
88000000 UL,
.invert =
1 ,
.skip_reinit =
0 ,
.lock_output = STV0299_LOCKOUTPUT_1,
.volt13_op0_op1 = STV0299_VOLT13_OP1,
.min_delay_ms =
100 ,
.set_symbol_rate = alps_bsru6_set_symbol_rate,
};
#endif
Messung V0.5 in Prozent C=95 H=88 G=91
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-05)
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