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V4L/DVB (3404): Refactored LNBP21 and BSBE1 support
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Moved duplicated code to separate files.
LNBP21 stuff rewritten from scratch, BSBE1 copied from av7110.c.
Modified budget driver to use the new routines.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Oliver Endriss authored and Mauro Carvalho Chehab committed Mar 8, 2006
1 parent 9f3319b commit 2f27bdc
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Showing 4 changed files with 267 additions and 137 deletions.
1 change: 1 addition & 0 deletions drivers/media/dvb/dvb-core/dvb_frontend.h
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Expand Up @@ -104,6 +104,7 @@ struct dvb_frontend {
struct dvb_adapter *dvb;
void* demodulator_priv;
void* frontend_priv;
void* misc_priv;
};

extern int dvb_register_frontend(struct dvb_adapter* dvb,
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123 changes: 123 additions & 0 deletions drivers/media/dvb/frontends/bsbe1.h
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/*
* bsbe1.h - ALPS BSBE1 tuner support (moved from av7110.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 http://www.linuxtv.org
*/

#ifndef BSBE1_H
#define BSBE1_H

static u8 alps_bsbe1_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, 0x92,
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_pll_set(struct dvb_frontend* fe, struct i2c_adapter *i2c, struct dvb_frontend_parameters* params)
{
int ret;
u8 data[4];
u32 div;
struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };

if ((params->frequency < 950000) || (params->frequency > 2150000))
return -EINVAL;

div = (params->frequency + (125 - 1)) / 125; // round correctly
data[0] = (div >> 8) & 0x7f;
data[1] = div & 0xff;
data[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
data[3] = (params->frequency > 1530000) ? 0xE0 : 0xE4;

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,
.pll_set = alps_bsbe1_pll_set,
};

#endif
139 changes: 139 additions & 0 deletions drivers/media/dvb/frontends/lnbp21.h
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/*
* lnbp21.h - driver for lnb supply and control ic lnbp21
*
* Copyright (C) 2006 Oliver Endriss
*
* 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 http://www.linuxtv.org
*/

#ifndef _LNBP21_H
#define _LNBP21_H

/* system register */
#define LNBP21_OLF 0x01
#define LNBP21_OTF 0x02
#define LNBP21_EN 0x04
#define LNBP21_VSEL 0x08
#define LNBP21_LLC 0x10
#define LNBP21_TEN 0x20
#define LNBP21_ISEL 0x40
#define LNBP21_PCL 0x80

struct lnbp21 {
u8 config;
u8 override_or;
u8 override_and;
struct i2c_adapter *i2c;
void (*release_chain)(struct dvb_frontend* fe);
};

static int lnbp21_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
{
struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;
struct i2c_msg msg = { .addr = 0x08, .flags = 0,
.buf = &lnbp21->config,
.len = sizeof(lnbp21->config) };

lnbp21->config &= ~(LNBP21_VSEL | LNBP21_EN);

switch(voltage) {
case SEC_VOLTAGE_OFF:
break;
case SEC_VOLTAGE_13:
lnbp21->config |= LNBP21_EN;
break;
case SEC_VOLTAGE_18:
lnbp21->config |= (LNBP21_EN | LNBP21_VSEL);
break;
default:
return -EINVAL;
};

lnbp21->config |= lnbp21->override_or;
lnbp21->config &= lnbp21->override_and;

return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO;
}

static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
{
struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;
struct i2c_msg msg = { .addr = 0x08, .flags = 0,
.buf = &lnbp21->config,
.len = sizeof(lnbp21->config) };

if (arg)
lnbp21->config |= LNBP21_LLC;
else
lnbp21->config &= ~LNBP21_LLC;

lnbp21->config |= lnbp21->override_or;
lnbp21->config &= lnbp21->override_and;

return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO;
}

static void lnbp21_exit(struct dvb_frontend *fe)
{
struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;

/* LNBP power off */
lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF);

/* free data & call next release routine */
fe->ops->release = lnbp21->release_chain;
kfree(fe->misc_priv);
fe->misc_priv = NULL;
if (fe->ops->release)
fe->ops->release(fe);
}

static int lnbp21_init(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
{
struct lnbp21 *lnbp21 = kmalloc(sizeof(struct lnbp21), GFP_KERNEL);

if (!lnbp21)
return -ENOMEM;

/* default configuration */
lnbp21->config = LNBP21_ISEL;

/* bits which should be forced to '1' */
lnbp21->override_or = override_set;

/* bits which should be forced to '0' */
lnbp21->override_and = ~override_clear;

/* install release callback */
lnbp21->release_chain = fe->ops->release;
fe->ops->release = lnbp21_exit;

/* override frontend ops */
fe->ops->set_voltage = lnbp21_set_voltage;
fe->ops->enable_high_lnb_voltage = lnbp21_enable_high_lnb_voltage;

lnbp21->i2c = i2c;
fe->misc_priv = lnbp21;

return lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF);
}

#endif
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