144 строки
3.8 KiB
C
144 строки
3.8 KiB
C
/*
|
|
* bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
|
|
*
|
|
*
|
|
* the project's page is at https://linuxtv.org
|
|
*/
|
|
|
|
#ifndef BSRU6_H
|
|
#define BSRU6_H
|
|
|
|
static u8 alps_bsru6_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
|
|
};
|
|
|
|
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 = 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_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 = 0x61, .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) & 0x7f;
|
|
buf[1] = div & 0xff;
|
|
buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
|
|
buf[3] = 0xC4;
|
|
|
|
if (p->frequency > 1530000)
|
|
buf[3] = 0xc0;
|
|
|
|
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 = 0x68,
|
|
.inittab = alps_bsru6_inittab,
|
|
.mclk = 88000000UL,
|
|
.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
|