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cos / third_party / kernel / 18f42418ea061815055194f7b874553208e0d29a / . / drivers / media / dvb-frontends / stv090x.c
blob: 90d24131d335f78aa5da365b05aebdeb0a11d67e [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-or-later
/*
STV0900/0903 Multistandard Broadcast Frontend driver
Copyright (C) Manu Abraham <abraham.manu@gmail.com>
Copyright (C) ST Microelectronics
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/dvb/frontend.h>
#include <media/dvb_frontend.h>
#include "stv6110x.h" /* for demodulator internal modes */
#include "stv090x_reg.h"
#include "stv090x.h"
#include "stv090x_priv.h"
/* Max transfer size done by I2C transfer functions */
#define MAX_XFER_SIZE 64
static unsigned int verbose;
module_param(verbose, int, 0644);
/* internal params node */
struct stv090x_dev {
/* pointer for internal params, one for each pair of demods */
struct stv090x_internal *internal;
struct stv090x_dev *next_dev;
};
/* first internal params */
static struct stv090x_dev *stv090x_first_dev;
/* find chip by i2c adapter and i2c address */
static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
u8 i2c_addr)
{
struct stv090x_dev *temp_dev = stv090x_first_dev;
/*
Search of the last stv0900 chip or
find it by i2c adapter and i2c address */
while ((temp_dev != NULL) &&
((temp_dev->internal->i2c_adap != i2c_adap) ||
(temp_dev->internal->i2c_addr != i2c_addr))) {
temp_dev = temp_dev->next_dev;
}
return temp_dev;
}
/* deallocating chip */
static void remove_dev(struct stv090x_internal *internal)
{
struct stv090x_dev *prev_dev = stv090x_first_dev;
struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
internal->i2c_addr);
if (del_dev != NULL) {
if (del_dev == stv090x_first_dev) {
stv090x_first_dev = del_dev->next_dev;
} else {
while (prev_dev->next_dev != del_dev)
prev_dev = prev_dev->next_dev;
prev_dev->next_dev = del_dev->next_dev;
}
kfree(del_dev);
}
}
/* allocating new chip */
static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
{
struct stv090x_dev *new_dev;
struct stv090x_dev *temp_dev;
new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
if (new_dev != NULL) {
new_dev->internal = internal;
new_dev->next_dev = NULL;
/* append to list */
if (stv090x_first_dev == NULL) {
stv090x_first_dev = new_dev;
} else {
temp_dev = stv090x_first_dev;
while (temp_dev->next_dev != NULL)
temp_dev = temp_dev->next_dev;
temp_dev->next_dev = new_dev;
}
}
return new_dev;
}
/* DVBS1 and DSS C/N Lookup table */
static const struct stv090x_tab stv090x_s1cn_tab[] = {
{ 0, 8917 }, /* 0.0dB */
{ 5, 8801 }, /* 0.5dB */
{ 10, 8667 }, /* 1.0dB */
{ 15, 8522 }, /* 1.5dB */
{ 20, 8355 }, /* 2.0dB */
{ 25, 8175 }, /* 2.5dB */
{ 30, 7979 }, /* 3.0dB */
{ 35, 7763 }, /* 3.5dB */
{ 40, 7530 }, /* 4.0dB */
{ 45, 7282 }, /* 4.5dB */
{ 50, 7026 }, /* 5.0dB */
{ 55, 6781 }, /* 5.5dB */
{ 60, 6514 }, /* 6.0dB */
{ 65, 6241 }, /* 6.5dB */
{ 70, 5965 }, /* 7.0dB */
{ 75, 5690 }, /* 7.5dB */
{ 80, 5424 }, /* 8.0dB */
{ 85, 5161 }, /* 8.5dB */
{ 90, 4902 }, /* 9.0dB */
{ 95, 4654 }, /* 9.5dB */
{ 100, 4417 }, /* 10.0dB */
{ 105, 4186 }, /* 10.5dB */
{ 110, 3968 }, /* 11.0dB */
{ 115, 3757 }, /* 11.5dB */
{ 120, 3558 }, /* 12.0dB */
{ 125, 3366 }, /* 12.5dB */
{ 130, 3185 }, /* 13.0dB */
{ 135, 3012 }, /* 13.5dB */
{ 140, 2850 }, /* 14.0dB */
{ 145, 2698 }, /* 14.5dB */
{ 150, 2550 }, /* 15.0dB */
{ 160, 2283 }, /* 16.0dB */
{ 170, 2042 }, /* 17.0dB */
{ 180, 1827 }, /* 18.0dB */
{ 190, 1636 }, /* 19.0dB */
{ 200, 1466 }, /* 20.0dB */
{ 210, 1315 }, /* 21.0dB */
{ 220, 1181 }, /* 22.0dB */
{ 230, 1064 }, /* 23.0dB */
{ 240, 960 }, /* 24.0dB */
{ 250, 869 }, /* 25.0dB */
{ 260, 792 }, /* 26.0dB */
{ 270, 724 }, /* 27.0dB */
{ 280, 665 }, /* 28.0dB */
{ 290, 616 }, /* 29.0dB */
{ 300, 573 }, /* 30.0dB */
{ 310, 537 }, /* 31.0dB */
{ 320, 507 }, /* 32.0dB */
{ 330, 483 }, /* 33.0dB */
{ 400, 398 }, /* 40.0dB */
{ 450, 381 }, /* 45.0dB */
{ 500, 377 } /* 50.0dB */
};
/* DVBS2 C/N Lookup table */
static const struct stv090x_tab stv090x_s2cn_tab[] = {
{ -30, 13348 }, /* -3.0dB */
{ -20, 12640 }, /* -2d.0B */
{ -10, 11883 }, /* -1.0dB */
{ 0, 11101 }, /* -0.0dB */
{ 5, 10718 }, /* 0.5dB */
{ 10, 10339 }, /* 1.0dB */
{ 15, 9947 }, /* 1.5dB */
{ 20, 9552 }, /* 2.0dB */
{ 25, 9183 }, /* 2.5dB */
{ 30, 8799 }, /* 3.0dB */
{ 35, 8422 }, /* 3.5dB */
{ 40, 8062 }, /* 4.0dB */
{ 45, 7707 }, /* 4.5dB */
{ 50, 7353 }, /* 5.0dB */
{ 55, 7025 }, /* 5.5dB */
{ 60, 6684 }, /* 6.0dB */
{ 65, 6331 }, /* 6.5dB */
{ 70, 6036 }, /* 7.0dB */
{ 75, 5727 }, /* 7.5dB */
{ 80, 5437 }, /* 8.0dB */
{ 85, 5164 }, /* 8.5dB */
{ 90, 4902 }, /* 9.0dB */
{ 95, 4653 }, /* 9.5dB */
{ 100, 4408 }, /* 10.0dB */
{ 105, 4187 }, /* 10.5dB */
{ 110, 3961 }, /* 11.0dB */
{ 115, 3751 }, /* 11.5dB */
{ 120, 3558 }, /* 12.0dB */
{ 125, 3368 }, /* 12.5dB */
{ 130, 3191 }, /* 13.0dB */
{ 135, 3017 }, /* 13.5dB */
{ 140, 2862 }, /* 14.0dB */
{ 145, 2710 }, /* 14.5dB */
{ 150, 2565 }, /* 15.0dB */
{ 160, 2300 }, /* 16.0dB */
{ 170, 2058 }, /* 17.0dB */
{ 180, 1849 }, /* 18.0dB */
{ 190, 1663 }, /* 19.0dB */
{ 200, 1495 }, /* 20.0dB */
{ 210, 1349 }, /* 21.0dB */
{ 220, 1222 }, /* 22.0dB */
{ 230, 1110 }, /* 23.0dB */
{ 240, 1011 }, /* 24.0dB */
{ 250, 925 }, /* 25.0dB */
{ 260, 853 }, /* 26.0dB */
{ 270, 789 }, /* 27.0dB */
{ 280, 734 }, /* 28.0dB */
{ 290, 690 }, /* 29.0dB */
{ 300, 650 }, /* 30.0dB */
{ 310, 619 }, /* 31.0dB */
{ 320, 593 }, /* 32.0dB */
{ 330, 571 }, /* 33.0dB */
{ 400, 498 }, /* 40.0dB */
{ 450, 484 }, /* 45.0dB */
{ 500, 481 } /* 50.0dB */
};
/* RF level C/N lookup table */
static const struct stv090x_tab stv090x_rf_tab[] = {
{ -5, 0xcaa1 }, /* -5dBm */
{ -10, 0xc229 }, /* -10dBm */
{ -15, 0xbb08 }, /* -15dBm */
{ -20, 0xb4bc }, /* -20dBm */
{ -25, 0xad5a }, /* -25dBm */
{ -30, 0xa298 }, /* -30dBm */
{ -35, 0x98a8 }, /* -35dBm */
{ -40, 0x8389 }, /* -40dBm */
{ -45, 0x59be }, /* -45dBm */
{ -50, 0x3a14 }, /* -50dBm */
{ -55, 0x2d11 }, /* -55dBm */
{ -60, 0x210d }, /* -60dBm */
{ -65, 0xa14f }, /* -65dBm */
{ -70, 0x07aa } /* -70dBm */
};
static struct stv090x_reg stv0900_initval[] = {
{ STV090x_OUTCFG, 0x00 },
{ STV090x_MODECFG, 0xff },
{ STV090x_AGCRF1CFG, 0x11 },
{ STV090x_AGCRF2CFG, 0x13 },
{ STV090x_TSGENERAL1X, 0x14 },
{ STV090x_TSTTNR2, 0x21 },
{ STV090x_TSTTNR4, 0x21 },
{ STV090x_P2_DISTXCTL, 0x22 },
{ STV090x_P2_F22TX, 0xc0 },
{ STV090x_P2_F22RX, 0xc0 },
{ STV090x_P2_DISRXCTL, 0x00 },
{ STV090x_P2_DMDCFGMD, 0xF9 },
{ STV090x_P2_DEMOD, 0x08 },
{ STV090x_P2_DMDCFG3, 0xc4 },
{ STV090x_P2_CARFREQ, 0xed },
{ STV090x_P2_LDT, 0xd0 },
{ STV090x_P2_LDT2, 0xb8 },
{ STV090x_P2_TMGCFG, 0xd2 },
{ STV090x_P2_TMGTHRISE, 0x20 },
{ STV090x_P1_TMGCFG, 0xd2 },
{ STV090x_P2_TMGTHFALL, 0x00 },
{ STV090x_P2_FECSPY, 0x88 },
{ STV090x_P2_FSPYDATA, 0x3a },
{ STV090x_P2_FBERCPT4, 0x00 },
{ STV090x_P2_FSPYBER, 0x10 },
{ STV090x_P2_ERRCTRL1, 0x35 },
{ STV090x_P2_ERRCTRL2, 0xc1 },
{ STV090x_P2_CFRICFG, 0xf8 },
{ STV090x_P2_NOSCFG, 0x1c },
{ STV090x_P2_DMDTOM, 0x20 },
{ STV090x_P2_CORRELMANT, 0x70 },
{ STV090x_P2_CORRELABS, 0x88 },
{ STV090x_P2_AGC2O, 0x5b },
{ STV090x_P2_AGC2REF, 0x38 },
{ STV090x_P2_CARCFG, 0xe4 },
{ STV090x_P2_ACLC, 0x1A },
{ STV090x_P2_BCLC, 0x09 },
{ STV090x_P2_CARHDR, 0x08 },
{ STV090x_P2_KREFTMG, 0xc1 },
{ STV090x_P2_SFRUPRATIO, 0xf0 },
{ STV090x_P2_SFRLOWRATIO, 0x70 },
{ STV090x_P2_SFRSTEP, 0x58 },
{ STV090x_P2_TMGCFG2, 0x01 },
{ STV090x_P2_CAR2CFG, 0x26 },
{ STV090x_P2_BCLC2S2Q, 0x86 },
{ STV090x_P2_BCLC2S28, 0x86 },
{ STV090x_P2_SMAPCOEF7, 0x77 },
{ STV090x_P2_SMAPCOEF6, 0x85 },
{ STV090x_P2_SMAPCOEF5, 0x77 },
{ STV090x_P2_TSCFGL, 0x20 },
{ STV090x_P2_DMDCFG2, 0x3b },
{ STV090x_P2_MODCODLST0, 0xff },
{ STV090x_P2_MODCODLST1, 0xff },
{ STV090x_P2_MODCODLST2, 0xff },
{ STV090x_P2_MODCODLST3, 0xff },
{ STV090x_P2_MODCODLST4, 0xff },
{ STV090x_P2_MODCODLST5, 0xff },
{ STV090x_P2_MODCODLST6, 0xff },
{ STV090x_P2_MODCODLST7, 0xcc },
{ STV090x_P2_MODCODLST8, 0xcc },
{ STV090x_P2_MODCODLST9, 0xcc },
{ STV090x_P2_MODCODLSTA, 0xcc },
{ STV090x_P2_MODCODLSTB, 0xcc },
{ STV090x_P2_MODCODLSTC, 0xcc },
{ STV090x_P2_MODCODLSTD, 0xcc },
{ STV090x_P2_MODCODLSTE, 0xcc },
{ STV090x_P2_MODCODLSTF, 0xcf },
{ STV090x_P1_DISTXCTL, 0x22 },
{ STV090x_P1_F22TX, 0xc0 },
{ STV090x_P1_F22RX, 0xc0 },
{ STV090x_P1_DISRXCTL, 0x00 },
{ STV090x_P1_DMDCFGMD, 0xf9 },
{ STV090x_P1_DEMOD, 0x08 },
{ STV090x_P1_DMDCFG3, 0xc4 },
{ STV090x_P1_DMDTOM, 0x20 },
{ STV090x_P1_CARFREQ, 0xed },
{ STV090x_P1_LDT, 0xd0 },
{ STV090x_P1_LDT2, 0xb8 },
{ STV090x_P1_TMGCFG, 0xd2 },
{ STV090x_P1_TMGTHRISE, 0x20 },
{ STV090x_P1_TMGTHFALL, 0x00 },
{ STV090x_P1_SFRUPRATIO, 0xf0 },
{ STV090x_P1_SFRLOWRATIO, 0x70 },
{ STV090x_P1_TSCFGL, 0x20 },
{ STV090x_P1_FECSPY, 0x88 },
{ STV090x_P1_FSPYDATA, 0x3a },
{ STV090x_P1_FBERCPT4, 0x00 },
{ STV090x_P1_FSPYBER, 0x10 },
{ STV090x_P1_ERRCTRL1, 0x35 },
{ STV090x_P1_ERRCTRL2, 0xc1 },
{ STV090x_P1_CFRICFG, 0xf8 },
{ STV090x_P1_NOSCFG, 0x1c },
{ STV090x_P1_CORRELMANT, 0x70 },
{ STV090x_P1_CORRELABS, 0x88 },
{ STV090x_P1_AGC2O, 0x5b },
{ STV090x_P1_AGC2REF, 0x38 },
{ STV090x_P1_CARCFG, 0xe4 },
{ STV090x_P1_ACLC, 0x1A },
{ STV090x_P1_BCLC, 0x09 },
{ STV090x_P1_CARHDR, 0x08 },
{ STV090x_P1_KREFTMG, 0xc1 },
{ STV090x_P1_SFRSTEP, 0x58 },
{ STV090x_P1_TMGCFG2, 0x01 },
{ STV090x_P1_CAR2CFG, 0x26 },
{ STV090x_P1_BCLC2S2Q, 0x86 },
{ STV090x_P1_BCLC2S28, 0x86 },
{ STV090x_P1_SMAPCOEF7, 0x77 },
{ STV090x_P1_SMAPCOEF6, 0x85 },
{ STV090x_P1_SMAPCOEF5, 0x77 },
{ STV090x_P1_DMDCFG2, 0x3b },
{ STV090x_P1_MODCODLST0, 0xff },
{ STV090x_P1_MODCODLST1, 0xff },
{ STV090x_P1_MODCODLST2, 0xff },
{ STV090x_P1_MODCODLST3, 0xff },
{ STV090x_P1_MODCODLST4, 0xff },
{ STV090x_P1_MODCODLST5, 0xff },
{ STV090x_P1_MODCODLST6, 0xff },
{ STV090x_P1_MODCODLST7, 0xcc },
{ STV090x_P1_MODCODLST8, 0xcc },
{ STV090x_P1_MODCODLST9, 0xcc },
{ STV090x_P1_MODCODLSTA, 0xcc },
{ STV090x_P1_MODCODLSTB, 0xcc },
{ STV090x_P1_MODCODLSTC, 0xcc },
{ STV090x_P1_MODCODLSTD, 0xcc },
{ STV090x_P1_MODCODLSTE, 0xcc },
{ STV090x_P1_MODCODLSTF, 0xcf },
{ STV090x_GENCFG, 0x1d },
{ STV090x_NBITER_NF4, 0x37 },
{ STV090x_NBITER_NF5, 0x29 },
{ STV090x_NBITER_NF6, 0x37 },
{ STV090x_NBITER_NF7, 0x33 },
{ STV090x_NBITER_NF8, 0x31 },
{ STV090x_NBITER_NF9, 0x2f },
{ STV090x_NBITER_NF10, 0x39 },
{ STV090x_NBITER_NF11, 0x3a },
{ STV090x_NBITER_NF12, 0x29 },
{ STV090x_NBITER_NF13, 0x37 },
{ STV090x_NBITER_NF14, 0x33 },
{ STV090x_NBITER_NF15, 0x2f },
{ STV090x_NBITER_NF16, 0x39 },
{ STV090x_NBITER_NF17, 0x3a },
{ STV090x_NBITERNOERR, 0x04 },
{ STV090x_GAINLLR_NF4, 0x0C },
{ STV090x_GAINLLR_NF5, 0x0F },
{ STV090x_GAINLLR_NF6, 0x11 },
{ STV090x_GAINLLR_NF7, 0x14 },
{ STV090x_GAINLLR_NF8, 0x17 },
{ STV090x_GAINLLR_NF9, 0x19 },
{ STV090x_GAINLLR_NF10, 0x20 },
{ STV090x_GAINLLR_NF11, 0x21 },
{ STV090x_GAINLLR_NF12, 0x0D },
{ STV090x_GAINLLR_NF13, 0x0F },
{ STV090x_GAINLLR_NF14, 0x13 },
{ STV090x_GAINLLR_NF15, 0x1A },
{ STV090x_GAINLLR_NF16, 0x1F },
{ STV090x_GAINLLR_NF17, 0x21 },
{ STV090x_RCCFGH, 0x20 },
{ STV090x_P1_FECM, 0x01 }, /* disable DSS modes */
{ STV090x_P2_FECM, 0x01 }, /* disable DSS modes */
{ STV090x_P1_PRVIT, 0x2F }, /* disable PR 6/7 */
{ STV090x_P2_PRVIT, 0x2F }, /* disable PR 6/7 */
};
static struct stv090x_reg stv0903_initval[] = {
{ STV090x_OUTCFG, 0x00 },
{ STV090x_AGCRF1CFG, 0x11 },
{ STV090x_STOPCLK1, 0x48 },
{ STV090x_STOPCLK2, 0x14 },
{ STV090x_TSTTNR1, 0x27 },
{ STV090x_TSTTNR2, 0x21 },
{ STV090x_P1_DISTXCTL, 0x22 },
{ STV090x_P1_F22TX, 0xc0 },
{ STV090x_P1_F22RX, 0xc0 },
{ STV090x_P1_DISRXCTL, 0x00 },
{ STV090x_P1_DMDCFGMD, 0xF9 },
{ STV090x_P1_DEMOD, 0x08 },
{ STV090x_P1_DMDCFG3, 0xc4 },
{ STV090x_P1_CARFREQ, 0xed },
{ STV090x_P1_TNRCFG2, 0x82 },
{ STV090x_P1_LDT, 0xd0 },
{ STV090x_P1_LDT2, 0xb8 },
{ STV090x_P1_TMGCFG, 0xd2 },
{ STV090x_P1_TMGTHRISE, 0x20 },
{ STV090x_P1_TMGTHFALL, 0x00 },
{ STV090x_P1_SFRUPRATIO, 0xf0 },
{ STV090x_P1_SFRLOWRATIO, 0x70 },
{ STV090x_P1_TSCFGL, 0x20 },
{ STV090x_P1_FECSPY, 0x88 },
{ STV090x_P1_FSPYDATA, 0x3a },
{ STV090x_P1_FBERCPT4, 0x00 },
{ STV090x_P1_FSPYBER, 0x10 },
{ STV090x_P1_ERRCTRL1, 0x35 },
{ STV090x_P1_ERRCTRL2, 0xc1 },
{ STV090x_P1_CFRICFG, 0xf8 },
{ STV090x_P1_NOSCFG, 0x1c },
{ STV090x_P1_DMDTOM, 0x20 },
{ STV090x_P1_CORRELMANT, 0x70 },
{ STV090x_P1_CORRELABS, 0x88 },
{ STV090x_P1_AGC2O, 0x5b },
{ STV090x_P1_AGC2REF, 0x38 },
{ STV090x_P1_CARCFG, 0xe4 },
{ STV090x_P1_ACLC, 0x1A },
{ STV090x_P1_BCLC, 0x09 },
{ STV090x_P1_CARHDR, 0x08 },
{ STV090x_P1_KREFTMG, 0xc1 },
{ STV090x_P1_SFRSTEP, 0x58 },
{ STV090x_P1_TMGCFG2, 0x01 },
{ STV090x_P1_CAR2CFG, 0x26 },
{ STV090x_P1_BCLC2S2Q, 0x86 },
{ STV090x_P1_BCLC2S28, 0x86 },
{ STV090x_P1_SMAPCOEF7, 0x77 },
{ STV090x_P1_SMAPCOEF6, 0x85 },
{ STV090x_P1_SMAPCOEF5, 0x77 },
{ STV090x_P1_DMDCFG2, 0x3b },
{ STV090x_P1_MODCODLST0, 0xff },
{ STV090x_P1_MODCODLST1, 0xff },
{ STV090x_P1_MODCODLST2, 0xff },
{ STV090x_P1_MODCODLST3, 0xff },
{ STV090x_P1_MODCODLST4, 0xff },
{ STV090x_P1_MODCODLST5, 0xff },
{ STV090x_P1_MODCODLST6, 0xff },
{ STV090x_P1_MODCODLST7, 0xcc },
{ STV090x_P1_MODCODLST8, 0xcc },
{ STV090x_P1_MODCODLST9, 0xcc },
{ STV090x_P1_MODCODLSTA, 0xcc },
{ STV090x_P1_MODCODLSTB, 0xcc },
{ STV090x_P1_MODCODLSTC, 0xcc },
{ STV090x_P1_MODCODLSTD, 0xcc },
{ STV090x_P1_MODCODLSTE, 0xcc },
{ STV090x_P1_MODCODLSTF, 0xcf },
{ STV090x_GENCFG, 0x1c },
{ STV090x_NBITER_NF4, 0x37 },
{ STV090x_NBITER_NF5, 0x29 },
{ STV090x_NBITER_NF6, 0x37 },
{ STV090x_NBITER_NF7, 0x33 },
{ STV090x_NBITER_NF8, 0x31 },
{ STV090x_NBITER_NF9, 0x2f },
{ STV090x_NBITER_NF10, 0x39 },
{ STV090x_NBITER_NF11, 0x3a },
{ STV090x_NBITER_NF12, 0x29 },
{ STV090x_NBITER_NF13, 0x37 },
{ STV090x_NBITER_NF14, 0x33 },
{ STV090x_NBITER_NF15, 0x2f },
{ STV090x_NBITER_NF16, 0x39 },
{ STV090x_NBITER_NF17, 0x3a },
{ STV090x_NBITERNOERR, 0x04 },
{ STV090x_GAINLLR_NF4, 0x0C },
{ STV090x_GAINLLR_NF5, 0x0F },
{ STV090x_GAINLLR_NF6, 0x11 },
{ STV090x_GAINLLR_NF7, 0x14 },
{ STV090x_GAINLLR_NF8, 0x17 },
{ STV090x_GAINLLR_NF9, 0x19 },
{ STV090x_GAINLLR_NF10, 0x20 },
{ STV090x_GAINLLR_NF11, 0x21 },
{ STV090x_GAINLLR_NF12, 0x0D },
{ STV090x_GAINLLR_NF13, 0x0F },
{ STV090x_GAINLLR_NF14, 0x13 },
{ STV090x_GAINLLR_NF15, 0x1A },
{ STV090x_GAINLLR_NF16, 0x1F },
{ STV090x_GAINLLR_NF17, 0x21 },
{ STV090x_RCCFGH, 0x20 },
{ STV090x_P1_FECM, 0x01 }, /*disable the DSS mode */
{ STV090x_P1_PRVIT, 0x2f } /*disable puncture rate 6/7*/
};
static struct stv090x_reg stv0900_cut20_val[] = {
{ STV090x_P2_DMDCFG3, 0xe8 },
{ STV090x_P2_DMDCFG4, 0x10 },
{ STV090x_P2_CARFREQ, 0x38 },
{ STV090x_P2_CARHDR, 0x20 },
{ STV090x_P2_KREFTMG, 0x5a },
{ STV090x_P2_SMAPCOEF7, 0x06 },
{ STV090x_P2_SMAPCOEF6, 0x00 },
{ STV090x_P2_SMAPCOEF5, 0x04 },
{ STV090x_P2_NOSCFG, 0x0c },
{ STV090x_P1_DMDCFG3, 0xe8 },
{ STV090x_P1_DMDCFG4, 0x10 },
{ STV090x_P1_CARFREQ, 0x38 },
{ STV090x_P1_CARHDR, 0x20 },
{ STV090x_P1_KREFTMG, 0x5a },
{ STV090x_P1_SMAPCOEF7, 0x06 },
{ STV090x_P1_SMAPCOEF6, 0x00 },
{ STV090x_P1_SMAPCOEF5, 0x04 },
{ STV090x_P1_NOSCFG, 0x0c },
{ STV090x_GAINLLR_NF4, 0x21 },
{ STV090x_GAINLLR_NF5, 0x21 },
{ STV090x_GAINLLR_NF6, 0x20 },
{ STV090x_GAINLLR_NF7, 0x1F },
{ STV090x_GAINLLR_NF8, 0x1E },
{ STV090x_GAINLLR_NF9, 0x1E },
{ STV090x_GAINLLR_NF10, 0x1D },
{ STV090x_GAINLLR_NF11, 0x1B },
{ STV090x_GAINLLR_NF12, 0x20 },
{ STV090x_GAINLLR_NF13, 0x20 },
{ STV090x_GAINLLR_NF14, 0x20 },
{ STV090x_GAINLLR_NF15, 0x20 },
{ STV090x_GAINLLR_NF16, 0x20 },
{ STV090x_GAINLLR_NF17, 0x21 },
};
static struct stv090x_reg stv0903_cut20_val[] = {
{ STV090x_P1_DMDCFG3, 0xe8 },
{ STV090x_P1_DMDCFG4, 0x10 },
{ STV090x_P1_CARFREQ, 0x38 },
{ STV090x_P1_CARHDR, 0x20 },
{ STV090x_P1_KREFTMG, 0x5a },
{ STV090x_P1_SMAPCOEF7, 0x06 },
{ STV090x_P1_SMAPCOEF6, 0x00 },
{ STV090x_P1_SMAPCOEF5, 0x04 },
{ STV090x_P1_NOSCFG, 0x0c },
{ STV090x_GAINLLR_NF4, 0x21 },
{ STV090x_GAINLLR_NF5, 0x21 },
{ STV090x_GAINLLR_NF6, 0x20 },
{ STV090x_GAINLLR_NF7, 0x1F },
{ STV090x_GAINLLR_NF8, 0x1E },
{ STV090x_GAINLLR_NF9, 0x1E },
{ STV090x_GAINLLR_NF10, 0x1D },
{ STV090x_GAINLLR_NF11, 0x1B },
{ STV090x_GAINLLR_NF12, 0x20 },
{ STV090x_GAINLLR_NF13, 0x20 },
{ STV090x_GAINLLR_NF14, 0x20 },
{ STV090x_GAINLLR_NF15, 0x20 },
{ STV090x_GAINLLR_NF16, 0x20 },
{ STV090x_GAINLLR_NF17, 0x21 }
};
/* Cut 2.0 Long Frame Tracking CR loop */
static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_QPSK_12, 0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
{ STV090x_QPSK_35, 0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
{ STV090x_QPSK_23, 0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_QPSK_34, 0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_QPSK_45, 0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_QPSK_56, 0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_QPSK_89, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
{ STV090x_8PSK_35, 0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
{ STV090x_8PSK_23, 0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
{ STV090x_8PSK_34, 0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
{ STV090x_8PSK_56, 0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
{ STV090x_8PSK_89, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
{ STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
};
/* Cut 3.0 Long Frame Tracking CR loop */
static struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_QPSK_12, 0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
{ STV090x_QPSK_35, 0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
{ STV090x_QPSK_23, 0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
{ STV090x_QPSK_34, 0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
{ STV090x_QPSK_45, 0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
{ STV090x_QPSK_56, 0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
{ STV090x_QPSK_89, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
{ STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
{ STV090x_8PSK_35, 0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
{ STV090x_8PSK_23, 0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
{ STV090x_8PSK_34, 0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
{ STV090x_8PSK_56, 0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
{ STV090x_8PSK_89, 0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
{ STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
};
/* Cut 2.0 Long Frame Tracking CR Loop */
static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_16APSK_23, 0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
{ STV090x_16APSK_34, 0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
{ STV090x_16APSK_45, 0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
{ STV090x_16APSK_56, 0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
{ STV090x_16APSK_89, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
{ STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
{ STV090x_32APSK_34, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
{ STV090x_32APSK_45, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
{ STV090x_32APSK_56, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
{ STV090x_32APSK_89, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
{ STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
};
/* Cut 3.0 Long Frame Tracking CR Loop */
static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_16APSK_23, 0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
{ STV090x_16APSK_34, 0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
{ STV090x_16APSK_45, 0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
{ STV090x_16APSK_56, 0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
{ STV090x_16APSK_89, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
{ STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
{ STV090x_32APSK_34, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
{ STV090x_32APSK_45, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
{ STV090x_32APSK_56, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
{ STV090x_32APSK_89, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
{ STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
};
static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_QPSK_14, 0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
{ STV090x_QPSK_13, 0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
{ STV090x_QPSK_25, 0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
};
static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
/* MODCOD 2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
{ STV090x_QPSK_14, 0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
{ STV090x_QPSK_13, 0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
{ STV090x_QPSK_25, 0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
};
/* Cut 2.0 Short Frame Tracking CR Loop */
static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
/* MODCOD 2M 5M 10M 20M 30M */
{ STV090x_QPSK, 0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
{ STV090x_8PSK, 0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
{ STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
{ STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
};
/* Cut 3.0 Short Frame Tracking CR Loop */
static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
/* MODCOD 2M 5M 10M 20M 30M */
{ STV090x_QPSK, 0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
{ STV090x_8PSK, 0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
{ STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
{ STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
};
static inline s32 comp2(s32 __x, s32 __width)
{
if (__width == 32)
return __x;
else
return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
}
static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
{
const struct stv090x_config *config = state->config;
int ret;
u8 b0[] = { reg >> 8, reg & 0xff };
u8 buf;
struct i2c_msg msg[] = {
{ .addr = config->address, .flags = 0, .buf = b0, .len = 2 },
{ .addr = config->address, .flags = I2C_M_RD, .buf = &buf, .len = 1 }
};
ret = i2c_transfer(state->i2c, msg, 2);
if (ret != 2) {
if (ret != -ERESTARTSYS)
dprintk(FE_ERROR, 1,
"Read error, Reg=[0x%02x], Status=%d",
reg, ret);
return ret < 0 ? ret : -EREMOTEIO;
}
if (unlikely(*state->verbose >= FE_DEBUGREG))
dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
reg, buf);
return (unsigned int) buf;
}
static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
{
const struct stv090x_config *config = state->config;
int ret;
u8 buf[MAX_XFER_SIZE];
struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
if (2 + count > sizeof(buf)) {
printk(KERN_WARNING
"%s: i2c wr reg=%04x: len=%d is too big!\n",
KBUILD_MODNAME, reg, count);
return -EINVAL;
}
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
memcpy(&buf[2], data, count);
dprintk(FE_DEBUGREG, 1, "%s [0x%04x]: %*ph",
__func__, reg, count, data);
ret = i2c_transfer(state->i2c, &i2c_msg, 1);
if (ret != 1) {
if (ret != -ERESTARTSYS)
dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
reg, data[0], count, ret);
return ret < 0 ? ret : -EREMOTEIO;
}
return 0;
}
static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
{
u8 tmp = data; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
return stv090x_write_regs(state, reg, &tmp, 1);
}
static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
{
u32 reg;
/*
* NOTE! A lock is used as a FSM to control the state in which
* access is serialized between two tuners on the same demod.
* This has nothing to do with a lock to protect a critical section
* which may in some other cases be confused with protecting I/O
* access to the demodulator gate.
* In case of any error, the lock is unlocked and exit within the
* relevant operations themselves.
*/
if (enable) {
if (state->config->tuner_i2c_lock)
state->config->tuner_i2c_lock(&state->frontend, 1);
else
mutex_lock(&state->internal->tuner_lock);
}
reg = STV090x_READ_DEMOD(state, I2CRPT);
if (enable) {
dprintk(FE_DEBUG, 1, "Enable Gate");
STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
goto err;
} else {
dprintk(FE_DEBUG, 1, "Disable Gate");
STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
goto err;
}
if (!enable) {
if (state->config->tuner_i2c_lock)
state->config->tuner_i2c_lock(&state->frontend, 0);
else
mutex_unlock(&state->internal->tuner_lock);
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
if (state->config->tuner_i2c_lock)
state->config->tuner_i2c_lock(&state->frontend, 0);
else
mutex_unlock(&state->internal->tuner_lock);
return -1;
}
static void stv090x_get_lock_tmg(struct stv090x_state *state)
{
switch (state->algo) {
case STV090x_BLIND_SEARCH:
dprintk(FE_DEBUG, 1, "Blind Search");
if (state->srate <= 1500000) { /*10Msps< SR <=15Msps*/
state->DemodTimeout = 1500;
state->FecTimeout = 400;
} else if (state->srate <= 5000000) { /*10Msps< SR <=15Msps*/
state->DemodTimeout = 1000;
state->FecTimeout = 300;
} else { /*SR >20Msps*/
state->DemodTimeout = 700;
state->FecTimeout = 100;
}
break;
case STV090x_COLD_SEARCH:
case STV090x_WARM_SEARCH:
default:
dprintk(FE_DEBUG, 1, "Normal Search");
if (state->srate <= 1000000) { /*SR <=1Msps*/
state->DemodTimeout = 4500;
state->FecTimeout = 1700;
} else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
state->DemodTimeout = 2500;
state->FecTimeout = 1100;
} else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
state->DemodTimeout = 1000;
state->FecTimeout = 550;
} else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
state->DemodTimeout = 700;
state->FecTimeout = 250;
} else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
state->DemodTimeout = 400;
state->FecTimeout = 130;
} else { /*SR >20Msps*/
state->DemodTimeout = 300;
state->FecTimeout = 100;
}
break;
}
if (state->algo == STV090x_WARM_SEARCH)
state->DemodTimeout /= 2;
}
static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
{
u32 sym;
if (srate > 60000000) {
sym = (srate << 4); /* SR * 2^16 / master_clk */
sym /= (state->internal->mclk >> 12);
} else if (srate > 6000000) {
sym = (srate << 6);
sym /= (state->internal->mclk >> 10);
} else {
sym = (srate << 9);
sym /= (state->internal->mclk >> 7);
}
if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
{
u32 sym;
srate = 105 * (srate / 100);
if (srate > 60000000) {
sym = (srate << 4); /* SR * 2^16 / master_clk */
sym /= (state->internal->mclk >> 12);
} else if (srate > 6000000) {
sym = (srate << 6);
sym /= (state->internal->mclk >> 10);
} else {
sym = (srate << 9);
sym /= (state->internal->mclk >> 7);
}
if (sym < 0x7fff) {
if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
goto err;
} else {
if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
goto err;
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
{
u32 sym;
srate = 95 * (srate / 100);
if (srate > 60000000) {
sym = (srate << 4); /* SR * 2^16 / master_clk */
sym /= (state->internal->mclk >> 12);
} else if (srate > 6000000) {
sym = (srate << 6);
sym /= (state->internal->mclk >> 10);
} else {
sym = (srate << 9);
sym /= (state->internal->mclk >> 7);
}
if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
{
u32 ro;
switch (rolloff) {
case STV090x_RO_20:
ro = 20;
break;
case STV090x_RO_25:
ro = 25;
break;
case STV090x_RO_35:
default:
ro = 35;
break;
}
return srate + (srate * ro) / 100;
}
static int stv090x_set_vit_thacq(struct stv090x_state *state)
{
if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_set_vit_thtracq(struct stv090x_state *state)
{
if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_set_viterbi(struct stv090x_state *state)
{
switch (state->search_mode) {
case STV090x_SEARCH_AUTO:
if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
goto err;
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
goto err;
break;
case STV090x_SEARCH_DVBS1:
if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
goto err;
switch (state->fec) {
case STV090x_PR12:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
goto err;
break;
case STV090x_PR23:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
goto err;
break;
case STV090x_PR34:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
goto err;
break;
case STV090x_PR56:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
goto err;
break;
case STV090x_PR78:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
goto err;
break;
default:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
goto err;
break;
}
break;
case STV090x_SEARCH_DSS:
if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
goto err;
switch (state->fec) {
case STV090x_PR12:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
goto err;
break;
case STV090x_PR23:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
goto err;
break;
case STV090x_PR67:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
goto err;
break;
default:
if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
goto err;
break;
}
break;
default:
break;
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_stop_modcod(struct stv090x_state *state)
{
if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_activate_modcod(struct stv090x_state *state)
{
if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_activate_modcod_single(struct stv090x_state *state)
{
if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
goto err;
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
{
u32 reg;
switch (state->demod) {
case STV090x_DEMODULATOR_0:
mutex_lock(&state->internal->demod_lock);
reg = stv090x_read_reg(state, STV090x_STOPCLK2);
STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
goto err;
mutex_unlock(&state->internal->demod_lock);
break;
case STV090x_DEMODULATOR_1:
mutex_lock(&state->internal->demod_lock);
reg = stv090x_read_reg(state, STV090x_STOPCLK2);
STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
goto err;
mutex_unlock(&state->internal->demod_lock);
break;
default:
dprintk(FE_ERROR, 1, "Wrong demodulator!");
break;
}
return 0;
err:
mutex_unlock(&state->internal->demod_lock);
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_dvbs_track_crl(struct stv090x_state *state)
{
if (state->internal->dev_ver >= 0x30) {
/* Set ACLC BCLC optimised value vs SR */
if (state->srate >= 15000000) {
if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
goto err;
} else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
goto err;
} else if (state->srate < 7000000) {
if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
goto err;
}
} else {
/* Cut 2.0 */
if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
goto err;
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_delivery_search(struct stv090x_state *state)
{
u32 reg;
switch (state->search_mode) {
case STV090x_SEARCH_DVBS1:
case STV090x_SEARCH_DSS:
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
/* Activate Viterbi decoder in legacy search,
* do not use FRESVIT1, might impact VITERBI2
*/
if (stv090x_vitclk_ctl(state, 0) < 0)
goto err;
if (stv090x_dvbs_track_crl(state) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
goto err;
if (stv090x_set_vit_thacq(state) < 0)
goto err;
if (stv090x_set_viterbi(state) < 0)
goto err;
break;
case STV090x_SEARCH_DVBS2:
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (stv090x_vitclk_ctl(state, 1) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
goto err;
if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
goto err;
if (state->internal->dev_ver <= 0x20) {
/* enable S2 carrier loop */
if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
goto err;
} else {
/* > Cut 3: Stop carrier 3 */
if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
goto err;
}
if (state->demod_mode != STV090x_SINGLE) {
/* Cut 2: enable link during search */
if (stv090x_activate_modcod(state) < 0)
goto err;
} else {
/* Single demodulator
* Authorize SHORT and LONG frames,
* QPSK, 8PSK, 16APSK and 32APSK
*/
if (stv090x_activate_modcod_single(state) < 0)
goto err;
}
if (stv090x_set_vit_thtracq(state) < 0)
goto err;
break;
case STV090x_SEARCH_AUTO:
default:
/* enable DVB-S2 and DVB-S2 in Auto MODE */
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (stv090x_vitclk_ctl(state, 0) < 0)
goto err;
if (stv090x_dvbs_track_crl(state) < 0)
goto err;
if (state->internal->dev_ver <= 0x20) {
/* enable S2 carrier loop */
if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
goto err;
} else {
/* > Cut 3: Stop carrier 3 */
if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
goto err;
}
if (state->demod_mode != STV090x_SINGLE) {
/* Cut 2: enable link during search */
if (stv090x_activate_modcod(state) < 0)
goto err;
} else {
/* Single demodulator
* Authorize SHORT and LONG frames,
* QPSK, 8PSK, 16APSK and 32APSK
*/
if (stv090x_activate_modcod_single(state) < 0)
goto err;
}
if (stv090x_set_vit_thacq(state) < 0)
goto err;
if (stv090x_set_viterbi(state) < 0)
goto err;
break;
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_start_search(struct stv090x_state *state)
{
u32 reg, freq_abs;
s16 freq;
/* Reset demodulator */
reg = STV090x_READ_DEMOD(state, DMDISTATE);
STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
goto err;
if (state->internal->dev_ver <= 0x20) {
if (state->srate <= 5000000) {
if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
goto err;
/*enlarge the timing bandwidth for Low SR*/
if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
goto err;
} else {
/* If the symbol rate is >5 Msps
Set The carrier search up and low to auto mode */
if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
goto err;
/*reduce the timing bandwidth for high SR*/
if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
goto err;
}
} else {
/* >= Cut 3 */
if (state->srate <= 5000000) {
/* enlarge the timing bandwidth for Low SR */
STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
} else {
/* reduce timing bandwidth for high SR */
STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
}
/* Set CFR min and max to manual mode */
STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
if (state->algo == STV090x_WARM_SEARCH) {
/* WARM Start
* CFR min = -1MHz,
* CFR max = +1MHz
*/
freq_abs = 1000 << 16;
freq_abs /= (state->internal->mclk / 1000);
freq = (s16) freq_abs;
} else {
/* COLD Start
* CFR min =- (SearchRange / 2 + 600KHz)
* CFR max = +(SearchRange / 2 + 600KHz)
* (600KHz for the tuner step size)
*/
freq_abs = (state->search_range / 2000) + 600;
freq_abs = freq_abs << 16;
freq_abs /= (state->internal->mclk / 1000);
freq = (s16) freq_abs;
}
if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
goto err;
freq *= -1;
if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
goto err;
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
goto err;
if ((state->search_mode == STV090x_SEARCH_DVBS1) ||
(state->search_mode == STV090x_SEARCH_DSS) ||
(state->search_mode == STV090x_SEARCH_AUTO)) {
if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
goto err;
}
}
if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFG2);
STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
goto err;
if (state->internal->dev_ver >= 0x20) {
/*Frequency offset detector setting*/
if (state->srate < 2000000) {
if (state->internal->dev_ver <= 0x20) {
/* Cut 2 */
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
goto err;
} else {
/* Cut 3 */
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
goto err;
} else if (state->srate < 10000000) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
goto err;
} else {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
goto err;
}
} else {
if (state->srate < 10000000) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
goto err;
} else {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
goto err;
}
}
switch (state->algo) {
case STV090x_WARM_SEARCH:
/* The symbol rate and the exact
* carrier Frequency are known
*/
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
goto err;
break;
case STV090x_COLD_SEARCH:
/* The symbol rate is known */
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
break;
default:
break;
}
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_get_agc2_min_level(struct stv090x_state *state)
{
u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
s32 i, j, steps, dir;
if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
goto err;
if (stv090x_set_srate(state, 1000000) < 0)
goto err;
steps = state->search_range / 1000000;
if (steps <= 0)
steps = 1;
dir = 1;
freq_step = (1000000 * 256) / (state->internal->mclk / 256);
freq_init = 0;
for (i = 0; i < steps; i++) {
if (dir > 0)
freq_init = freq_init + (freq_step * i);
else
freq_init = freq_init - (freq_step * i);
dir *= -1;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
goto err;
msleep(10);
agc2 = 0;
for (j = 0; j < 10; j++) {
agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
STV090x_READ_DEMOD(state, AGC2I0);
}
agc2 /= 10;
if (agc2 < agc2_min)
agc2_min = agc2;
}
return agc2_min;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
{
u8 r3, r2, r1, r0;
s32 srate, int_1, int_2, tmp_1, tmp_2;
r3 = STV090x_READ_DEMOD(state, SFR3);
r2 = STV090x_READ_DEMOD(state, SFR2);
r1 = STV090x_READ_DEMOD(state, SFR1);
r0 = STV090x_READ_DEMOD(state, SFR0);
srate = ((r3 << 24) | (r2 << 16) | (r1 << 8) | r0);
int_1 = clk >> 16;
int_2 = srate >> 16;
tmp_1 = clk % 0x10000;
tmp_2 = srate % 0x10000;
srate = (int_1 * int_2) +
((int_1 * tmp_2) >> 16) +
((int_2 * tmp_1) >> 16);
return srate;
}
static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
{
struct dvb_frontend *fe = &state->frontend;
int tmg_lock = 0, i;
s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
u32 agc2th;
if (state->internal->dev_ver >= 0x30)
agc2th = 0x2e00;
else
agc2th = 0x1f00;
reg = STV090x_READ_DEMOD(state, DMDISTATE);
STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
goto err;
if (state->internal->dev_ver >= 0x30) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
goto err;
} else if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
goto err;
}
if (state->srate <= 2000000)
car_step = 1000;
else if (state->srate <= 5000000)
car_step = 2000;
else if (state->srate <= 12000000)
car_step = 3000;
else
car_step = 5000;
steps = -1 + ((state->search_range / 1000) / car_step);
steps /= 2;
steps = (2 * steps) + 1;
if (steps < 0)
steps = 1;
else if (steps > 10) {
steps = 11;
car_step = (state->search_range / 1000) / 10;
}
cur_step = 0;
dir = 1;
freq = state->frequency;
while ((!tmg_lock) && (cur_step < steps)) {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
goto err;
/* trigger acquisition */
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
goto err;
msleep(50);
for (i = 0; i < 10; i++) {
reg = STV090x_READ_DEMOD(state, DSTATUS);
if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
tmg_cpt++;
agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
STV090x_READ_DEMOD(state, AGC2I0);
}
agc2 /= 10;
srate_coarse = stv090x_get_srate(state, state->internal->mclk);
cur_step++;
dir *= -1;
if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
(srate_coarse < 50000000) && (srate_coarse > 850000))
tmg_lock = 1;
else if (cur_step < steps) {
if (dir > 0)
freq += cur_step * car_step;
else
freq -= cur_step * car_step;
/* Setup tuner */
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_set_frequency) {
if (state->config->tuner_set_frequency(fe, freq) < 0)
goto err_gateoff;
}
if (state->config->tuner_set_bandwidth) {
if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
goto err_gateoff;
}
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
msleep(50);
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_get_status) {
if (state->config->tuner_get_status(fe, &reg) < 0)
goto err_gateoff;
}
if (reg)
dprintk(FE_DEBUG, 1, "Tuner phase locked");
else
dprintk(FE_DEBUG, 1, "Tuner unlocked");
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
}
}
if (!tmg_lock)
srate_coarse = 0;
else
srate_coarse = stv090x_get_srate(state, state->internal->mclk);
return srate_coarse;
err_gateoff:
stv090x_i2c_gate_ctrl(state, 0);
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
{
u32 srate_coarse, freq_coarse, sym, reg;
srate_coarse = stv090x_get_srate(state, state->internal->mclk);
freq_coarse = STV090x_READ_DEMOD(state, CFR2) << 8;
freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
if (sym < state->srate)
srate_coarse = 0;
else {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
goto err;
if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
goto err;
if (state->internal->dev_ver >= 0x30) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
goto err;
} else if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
goto err;
}
if (srate_coarse > 3000000) {
sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
sym = (sym / 1000) * 65536;
sym /= (state->internal->mclk / 1000);
if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
goto err;
sym = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
sym = (sym / 1000) * 65536;
sym /= (state->internal->mclk / 1000);
if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
goto err;
sym = (srate_coarse / 1000) * 65536;
sym /= (state->internal->mclk / 1000);
if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
goto err;
} else {
sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
sym = (sym / 100) * 65536;
sym /= (state->internal->mclk / 100);
if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
goto err;
sym = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
sym = (sym / 100) * 65536;
sym /= (state->internal->mclk / 100);
if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
goto err;
sym = (srate_coarse / 100) * 65536;
sym /= (state->internal->mclk / 100);
if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
goto err;
}
return srate_coarse;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
{
s32 timer = 0, lock = 0;
u32 reg;
u8 stat;
while ((timer < timeout) && (!lock)) {
reg = STV090x_READ_DEMOD(state, DMDSTATE);
stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
switch (stat) {
case 0: /* searching */
case 1: /* first PLH detected */
default:
dprintk(FE_DEBUG, 1, "Demodulator searching ..");
lock = 0;
break;
case 2: /* DVB-S2 mode */
case 3: /* DVB-S1/legacy mode */
reg = STV090x_READ_DEMOD(state, DSTATUS);
lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
break;
}
if (!lock)
msleep(10);
else
dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
timer += 10;
}
return lock;
}
static int stv090x_blind_search(struct stv090x_state *state)
{
u32 agc2, reg, srate_coarse;
s32 cpt_fail, agc2_ovflw, i;
u8 k_ref, k_max, k_min;
int coarse_fail = 0;
int lock;
k_max = 110;
k_min = 10;
agc2 = stv090x_get_agc2_min_level(state);
if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
lock = 0;
} else {
if (state->internal->dev_ver <= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
goto err;
} else {
/* > Cut 3 */
if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
goto err;
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
goto err;
}
k_ref = k_max;
do {
if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
goto err;
if (stv090x_srate_srch_coarse(state) != 0) {
srate_coarse = stv090x_srate_srch_fine(state);
if (srate_coarse != 0) {
stv090x_get_lock_tmg(state);
lock = stv090x_get_dmdlock(state,
state->DemodTimeout);
} else {
lock = 0;
}
} else {
cpt_fail = 0;
agc2_ovflw = 0;
for (i = 0; i < 10; i++) {
agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
STV090x_READ_DEMOD(state, AGC2I0);
if (agc2 >= 0xff00)
agc2_ovflw++;
reg = STV090x_READ_DEMOD(state, DSTATUS2);
if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
(STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
cpt_fail++;
}
if ((cpt_fail > 7) || (agc2_ovflw > 7))
coarse_fail = 1;
lock = 0;
}
k_ref -= 20;
} while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
}
return lock;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_chk_tmg(struct stv090x_state *state)
{
u32 reg;
s32 tmg_cpt = 0, i;
u8 freq, tmg_thh, tmg_thl;
int tmg_lock = 0;
freq = STV090x_READ_DEMOD(state, CARFREQ);
tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, DMDCFGMD);
STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
goto err;
msleep(10);
for (i = 0; i < 10; i++) {
reg = STV090x_READ_DEMOD(state, DSTATUS);
if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
tmg_cpt++;
msleep(1);
}
if (tmg_cpt >= 3)
tmg_lock = 1;
if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
goto err;
if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
goto err;
if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
goto err;
return tmg_lock;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
{
struct dvb_frontend *fe = &state->frontend;
u32 reg;
s32 car_step, steps, cur_step, dir, freq, timeout_lock;
int lock;
if (state->srate >= 10000000)
timeout_lock = timeout_dmd / 3;
else
timeout_lock = timeout_dmd / 2;
lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
if (lock)
return lock;
if (state->srate >= 10000000) {
if (stv090x_chk_tmg(state)) {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
return stv090x_get_dmdlock(state, timeout_dmd);
}
return 0;
}
if (state->srate <= 4000000)
car_step = 1000;
else if (state->srate <= 7000000)
car_step = 2000;
else if (state->srate <= 10000000)
car_step = 3000;
else
car_step = 5000;
steps = (state->search_range / 1000) / car_step;
steps /= 2;
steps = 2 * (steps + 1);
if (steps < 0)
steps = 2;
else if (steps > 12)
steps = 12;
cur_step = 1;
dir = 1;
freq = state->frequency;
state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
while ((cur_step <= steps) && (!lock)) {
if (dir > 0)
freq += cur_step * car_step;
else
freq -= cur_step * car_step;
/* Setup tuner */
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_set_frequency) {
if (state->config->tuner_set_frequency(fe, freq) < 0)
goto err_gateoff;
}
if (state->config->tuner_set_bandwidth) {
if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
goto err_gateoff;
}
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
msleep(50);
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_get_status) {
if (state->config->tuner_get_status(fe, &reg) < 0)
goto err_gateoff;
if (reg)
dprintk(FE_DEBUG, 1, "Tuner phase locked");
else
dprintk(FE_DEBUG, 1, "Tuner unlocked");
}
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
dir *= -1;
cur_step++;
}
return lock;
err_gateoff:
stv090x_i2c_gate_ctrl(state, 0);
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
{
s32 timeout, inc, steps_max, srate, car_max;
srate = state->srate;
car_max = state->search_range / 1000;
car_max += car_max / 10;
car_max = 65536 * (car_max / 2);
car_max /= (state->internal->mclk / 1000);
if (car_max > 0x4000)
car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
inc = srate;
inc /= state->internal->mclk / 1000;
inc *= 256;
inc *= 256;
inc /= 1000;
switch (state->search_mode) {
case STV090x_SEARCH_DVBS1:
case STV090x_SEARCH_DSS:
inc *= 3; /* freq step = 3% of srate */
timeout = 20;
break;
case STV090x_SEARCH_DVBS2:
inc *= 4;
timeout = 25;
break;
case STV090x_SEARCH_AUTO:
default:
inc *= 3;
timeout = 25;
break;
}
inc /= 100;
if ((inc > car_max) || (inc < 0))
inc = car_max / 2; /* increment <= 1/8 Mclk */
timeout *= 27500; /* 27.5 Msps reference */
if (srate > 0)
timeout /= (srate / 1000);
if ((timeout > 100) || (timeout < 0))
timeout = 100;
steps_max = (car_max / inc) + 1; /* min steps = 3 */
if ((steps_max > 100) || (steps_max < 0)) {
steps_max = 100; /* max steps <= 100 */
inc = car_max / steps_max;
}
*freq_inc = inc;
*timeout_sw = timeout;
*steps = steps_max;
return 0;
}
static int stv090x_chk_signal(struct stv090x_state *state)
{
s32 offst_car, agc2, car_max;
int no_signal;
offst_car = STV090x_READ_DEMOD(state, CFR2) << 8;
offst_car |= STV090x_READ_DEMOD(state, CFR1);
offst_car = comp2(offst_car, 16);
agc2 = STV090x_READ_DEMOD(state, AGC2I1) << 8;
agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
car_max = state->search_range / 1000;
car_max += (car_max / 10); /* 10% margin */
car_max = (65536 * car_max / 2);
car_max /= state->internal->mclk / 1000;
if (car_max > 0x4000)
car_max = 0x4000;
if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
no_signal = 1;
dprintk(FE_DEBUG, 1, "No Signal");
} else {
no_signal = 0;
dprintk(FE_DEBUG, 1, "Found Signal");
}
return no_signal;
}
static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
{
int no_signal, lock = 0;
s32 cpt_step = 0, offst_freq, car_max;
u32 reg;
car_max = state->search_range / 1000;
car_max += (car_max / 10);
car_max = (65536 * car_max / 2);
car_max /= (state->internal->mclk / 1000);
if (car_max > 0x4000)
car_max = 0x4000;
if (zigzag)
offst_freq = 0;
else
offst_freq = -car_max + inc;
do {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
goto err;
reg = STV090x_READ_DEMOD(state, PDELCTRL1);
STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
goto err;
if (zigzag) {
if (offst_freq >= 0)
offst_freq = -offst_freq - 2 * inc;
else
offst_freq = -offst_freq;
} else {
offst_freq += 2 * inc;
}
cpt_step++;
lock = stv090x_get_dmdlock(state, timeout);
no_signal = stv090x_chk_signal(state);
} while ((!lock) &&
(!no_signal) &&
((offst_freq - inc) < car_max) &&
((offst_freq + inc) > -car_max) &&
(cpt_step < steps_max));
reg = STV090x_READ_DEMOD(state, PDELCTRL1);
STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
goto err;
return lock;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static int stv090x_sw_algo(struct stv090x_state *state)
{
int no_signal, zigzag, lock = 0;
u32 reg;
s32 dvbs2_fly_wheel;
s32 inc, timeout_step, trials, steps_max;
/* get params */
stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
switch (state->search_mode) {
case STV090x_SEARCH_DVBS1:
case STV090x_SEARCH_DSS:
/* accelerate the frequency detector */
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
goto err;
zigzag = 0;
break;
case STV090x_SEARCH_DVBS2:
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
goto err;
zigzag = 1;
break;
case STV090x_SEARCH_AUTO:
default:
/* accelerate the frequency detector */
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
goto err;
zigzag = 0;
break;
}
trials = 0;
do {
lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
no_signal = stv090x_chk_signal(state);
trials++;
/*run the SW search 2 times maximum*/
if (lock || no_signal || (trials == 2)) {
/*Check if the demod is not losing lock in DVBS2*/
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
goto err;
}
reg = STV090x_READ_DEMOD(state, DMDSTATE);
if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
/*Check if the demod is not losing lock in DVBS2*/
msleep(timeout_step);
reg = STV090x_READ_DEMOD(state, DMDFLYW);
dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
if (dvbs2_fly_wheel < 0xd) { /*if correct frames is decrementing */
msleep(timeout_step);
reg = STV090x_READ_DEMOD(state, DMDFLYW);
dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
}
if (dvbs2_fly_wheel < 0xd) {
/*FALSE lock, The demod is losing lock */
lock = 0;
if (trials < 2) {
if (state->internal->dev_ver >= 0x20) {
if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
goto err;
}
if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
goto err;
}
}
}
}
} while ((!lock) && (trials < 2) && (!no_signal));
return lock;
err:
dprintk(FE_ERROR, 1, "I/O error");
return -1;
}
static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
{
u32 reg;
enum stv090x_delsys delsys;
reg = STV090x_READ_DEMOD(state, DMDSTATE);
if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
delsys = STV090x_DVBS2;
else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
reg = STV090x_READ_DEMOD(state, FECM);
if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
delsys = STV090x_DSS;
else
delsys = STV090x_DVBS1;
} else {
delsys = STV090x_ERROR;
}
return delsys;
}