/*
* bsbe1.h - ALPS BSBE1 tuner support
*
* 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.
*
* To obtain the license, point your browser to
* http://www.gnu.org/copyleft/gpl.html
*
*
* the project's page is at https://linuxtv.org
*/
#ifndef BSBE1_H
#define BSBE1_H
static u8 alps_bsbe1_inittab[] = {
0x01, 0x15, /* XTAL = 4MHz, VCO = 352 MHz */
0x02, 0x30, /* MCLK = 88 MHz */
0x03, 0x00, /* ACR output 0 */
0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
0x05, 0x05, /* I2CT = 0, SCLT = 1, SDAT = 1 */
0x06, 0x00, /* DAC output 0 */
0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
0x09, 0x00, /* FIFO */
0x0c, 0x51, /* OP1/OP0 normal, val = 1 (LNB power on) */
0x0d, 0x82, /* DC offset compensation = on, beta_agc1 = 2 */
0x0f, 0x92, /* AGC1R */
0x10, 0x34, /* AGC2O */
0x11, 0x84, /* TLSR */
0x12, 0xb9, /* CFD */
0x15, 0xc9, /* lock detector threshold */
0x28, 0x00, /* out imp: normal, type: parallel, FEC mode: QPSK */
0x33, 0xfc, /* RS control */
0x34, 0x93, /* count viterbi bit errors per 2E18 bytes */
0xff, 0xff
};
static int alps_bsbe1_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 int alps_bsbe1_tuner_set_params(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
int ret;
u8 data[4];
u32 div;
struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };
struct i2c_adapter *i2c = fe->tuner_priv;
if ((p->frequency < 950000) || (p->frequency > 2150000))
return -EINVAL;
div = p->frequency / 1000;
data[0] = (div >> 8) & 0x7f;
data[1] = div & 0xff;
data[2] = 0x80 | ((div & 0x18000) >> 10) | 0x1;
data[3] = 0xe0;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
ret = i2c_transfer(i2c, &msg, 1);
return (ret != 1) ? -EIO : 0;
}
static struct stv0299_config alps_bsbe1_config = {
.demod_address = 0x68,
.inittab = alps_bsbe1_inittab,
.mclk = 88000000UL,
.invert = 1,
.skip_reinit = 0,
.min_delay_ms = 100,
.set_symbol_rate = alps_bsbe1_set_symbol_rate,
};
#endif
