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linux-next/drivers/media/dvb-frontends/bsbe1.h
Thomas Gleixner a0c7056fda treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 113
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 26 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091650.572604764@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:39:01 +02:00

90 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* bsbe1.h - ALPS BSBE1 tuner support
*
* 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