renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-26 22:24:09 +08:00
Code
62f1aa9f98
linux-next/drivers/media/dvb/frontends/stv0900_core.c
Abylay Ospan fc7e4a3e72 V4L/DVB (12312): stv0900: fix i2c repeater configuration must be set to manual 
In automatic mode every stop event on SDA line ends repetition.
However, in  NetUP Dual card on the same i2c bus we have several devices.
If someone using both adapters to lock simultaneously or working with CAM interface
during lock procedure, it lead to end repetition prematurely quite often.
Set stv0900 i2c repeater to manual mode prevents such situation.

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12 12:18:03 -03:00

2006 lines
54 KiB
C
Raw Blame History

/*
* stv0900_core.c
*
* Driver for ST STV0900 satellite demodulator IC.
*
* Copyright (C) ST Microelectronics.
* Copyright (C) 2009 NetUP Inc.
* Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include "stv0900.h"
#include "stv0900_reg.h"
#include "stv0900_priv.h"
#include "stv0900_init.h"
static int stvdebug = 1;
module_param_named(debug, stvdebug, int, 0644);
/* internal params node */
struct stv0900_inode {
/* pointer for internal params, one for each pair of demods */
struct stv0900_internal *internal;
struct stv0900_inode *next_inode;
};
/* first internal params */
static struct stv0900_inode *stv0900_first_inode;
/* find chip by i2c adapter and i2c address */
static struct stv0900_inode *find_inode(struct i2c_adapter *i2c_adap,
u8 i2c_addr)
{
struct stv0900_inode *temp_chip = stv0900_first_inode;
if (temp_chip != NULL) {
/*
Search of the last stv0900 chip or
find it by i2c adapter and i2c address */
while ((temp_chip != NULL) &&
((temp_chip->internal->i2c_adap != i2c_adap) ||
(temp_chip->internal->i2c_addr != i2c_addr)))
temp_chip = temp_chip->next_inode;
}
return temp_chip;
}
/* deallocating chip */
static void remove_inode(struct stv0900_internal *internal)
{
struct stv0900_inode *prev_node = stv0900_first_inode;
struct stv0900_inode *del_node = find_inode(internal->i2c_adap,
internal->i2c_addr);
if (del_node != NULL) {
if (del_node == stv0900_first_inode) {
stv0900_first_inode = del_node->next_inode;
} else {
while (prev_node->next_inode != del_node)
prev_node = prev_node->next_inode;
if (del_node->next_inode == NULL)
prev_node->next_inode = NULL;
else
prev_node->next_inode =
prev_node->next_inode->next_inode;
}
kfree(del_node);
}
}
/* allocating new chip */
static struct stv0900_inode *append_internal(struct stv0900_internal *internal)
{
struct stv0900_inode *new_node = stv0900_first_inode;
if (new_node == NULL) {
new_node = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL);
stv0900_first_inode = new_node;
} else {
while (new_node->next_inode != NULL)
new_node = new_node->next_inode;
new_node->next_inode = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL);
if (new_node->next_inode != NULL)
new_node = new_node->next_inode;
else
new_node = NULL;
}
if (new_node != NULL) {
new_node->internal = internal;
new_node->next_inode = NULL;
}
return new_node;
}
s32 ge2comp(s32 a, s32 width)
{
if (width == 32)
return a;
else
return (a >= (1 << (width - 1))) ? (a - (1 << width)) : a;
}
void stv0900_write_reg(struct stv0900_internal *i_params, u16 reg_addr,
u8 reg_data)
{
u8 data[3];
int ret;
struct i2c_msg i2cmsg = {
.addr = i_params->i2c_addr,
.flags = 0,
.len = 3,
.buf = data,
};
data[0] = MSB(reg_addr);
data[1] = LSB(reg_addr);
data[2] = reg_data;
ret = i2c_transfer(i_params->i2c_adap, &i2cmsg, 1);
if (ret != 1)
dprintk(KERN_ERR "%s: i2c error %d\n", __func__, ret);
}
u8 stv0900_read_reg(struct stv0900_internal *i_params, u16 reg)
{
int ret;
u8 b0[] = { MSB(reg), LSB(reg) };
u8 buf = 0;
struct i2c_msg msg[] = {
{
.addr = i_params->i2c_addr,
.flags = 0,
.buf = b0,
.len = 2,
}, {
.addr = i_params->i2c_addr,
.flags = I2C_M_RD,
.buf = &buf,
.len = 1,
},
};
ret = i2c_transfer(i_params->i2c_adap, msg, 2);
if (ret != 2)
dprintk(KERN_ERR "%s: i2c error %d, reg[0x%02x]\n",
__func__, ret, reg);
return buf;
}
void extract_mask_pos(u32 label, u8 *mask, u8 *pos)
{
u8 position = 0, i = 0;
(*mask) = label & 0xff;
while ((position == 0) && (i < 8)) {
position = ((*mask) >> i) & 0x01;
i++;
}
(*pos) = (i - 1);
}
void stv0900_write_bits(struct stv0900_internal *i_params, u32 label, u8 val)
{
u8 reg, mask, pos;
reg = stv0900_read_reg(i_params, (label >> 16) & 0xffff);
extract_mask_pos(label, &mask, &pos);
val = mask & (val << pos);
reg = (reg & (~mask)) | val;
stv0900_write_reg(i_params, (label >> 16) & 0xffff, reg);
}
u8 stv0900_get_bits(struct stv0900_internal *i_params, u32 label)
{
u8 val = 0xff;
u8 mask, pos;
extract_mask_pos(label, &mask, &pos);
val = stv0900_read_reg(i_params, label >> 16);
val = (val & mask) >> pos;
return val;
}
enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *i_params)
{
s32 i;
enum fe_stv0900_error error;
if (i_params != NULL) {
i_params->chip_id = stv0900_read_reg(i_params, R0900_MID);
if (i_params->errs == STV0900_NO_ERROR) {
/*Startup sequence*/
stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x5c);
stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x5c);
stv0900_write_reg(i_params, R0900_P1_TNRCFG, 0x6c);
stv0900_write_reg(i_params, R0900_P2_TNRCFG, 0x6f);
stv0900_write_reg(i_params, R0900_P1_I2CRPT, 0x20);
stv0900_write_reg(i_params, R0900_P2_I2CRPT, 0x20);
stv0900_write_reg(i_params, R0900_NCOARSE, 0x13);
msleep(3);
stv0900_write_reg(i_params, R0900_I2CCFG, 0x08);
switch (i_params->clkmode) {
case 0:
case 2:
stv0900_write_reg(i_params, R0900_SYNTCTRL, 0x20
| i_params->clkmode);
break;
default:
/* preserve SELOSCI bit */
i = 0x02 & stv0900_read_reg(i_params, R0900_SYNTCTRL);
stv0900_write_reg(i_params, R0900_SYNTCTRL, 0x20 | i);
break;
}
msleep(3);
for (i = 0; i < 182; i++)
stv0900_write_reg(i_params, STV0900_InitVal[i][0], STV0900_InitVal[i][1]);
if (stv0900_read_reg(i_params, R0900_MID) >= 0x20) {
stv0900_write_reg(i_params, R0900_TSGENERAL, 0x0c);
for (i = 0; i < 32; i++)
stv0900_write_reg(i_params, STV0900_Cut20_AddOnVal[i][0], STV0900_Cut20_AddOnVal[i][1]);
}
stv0900_write_reg(i_params, R0900_P1_FSPYCFG, 0x6c);
stv0900_write_reg(i_params, R0900_P2_FSPYCFG, 0x6c);
stv0900_write_reg(i_params, R0900_TSTRES0, 0x80);
stv0900_write_reg(i_params, R0900_TSTRES0, 0x00);
}
error = i_params->errs;
} else
error = STV0900_INVALID_HANDLE;
return error;
}
u32 stv0900_get_mclk_freq(struct stv0900_internal *i_params, u32 ext_clk)
{
u32 mclk = 90000000, div = 0, ad_div = 0;
div = stv0900_get_bits(i_params, F0900_M_DIV);
ad_div = ((stv0900_get_bits(i_params, F0900_SELX1RATIO) == 1) ? 4 : 6);
mclk = (div + 1) * ext_clk / ad_div;
dprintk(KERN_INFO "%s: Calculated Mclk = %d\n", __func__, mclk);
return mclk;
}
enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *i_params, u32 mclk)
{
enum fe_stv0900_error error = STV0900_NO_ERROR;
u32 m_div, clk_sel;
dprintk(KERN_INFO "%s: Mclk set to %d, Quartz = %d\n", __func__, mclk,
i_params->quartz);
if (i_params == NULL)
error = STV0900_INVALID_HANDLE;
else {
if (i_params->errs)
error = STV0900_I2C_ERROR;
else {
clk_sel = ((stv0900_get_bits(i_params, F0900_SELX1RATIO) == 1) ? 4 : 6);
m_div = ((clk_sel * mclk) / i_params->quartz) - 1;
stv0900_write_bits(i_params, F0900_M_DIV, m_div);
i_params->mclk = stv0900_get_mclk_freq(i_params,
i_params->quartz);
/*Set the DiseqC frequency to 22KHz */
/*
Formula:
DiseqC_TX_Freq= MasterClock/(32*F22TX_Reg)
DiseqC_RX_Freq= MasterClock/(32*F22RX_Reg)
*/
m_div = i_params->mclk / 704000;
stv0900_write_reg(i_params, R0900_P1_F22TX, m_div);
stv0900_write_reg(i_params, R0900_P1_F22RX, m_div);
stv0900_write_reg(i_params, R0900_P2_F22TX, m_div);
stv0900_write_reg(i_params, R0900_P2_F22RX, m_div);
if ((i_params->errs))
error = STV0900_I2C_ERROR;
}
}
return error;
}
u32 stv0900_get_err_count(struct stv0900_internal *i_params, int cntr,
enum fe_stv0900_demod_num demod)
{
u32 lsb, msb, hsb, err_val;
s32 err1field_hsb, err1field_msb, err1field_lsb;
s32 err2field_hsb, err2field_msb, err2field_lsb;
dmd_reg(err1field_hsb, F0900_P1_ERR_CNT12, F0900_P2_ERR_CNT12);
dmd_reg(err1field_msb, F0900_P1_ERR_CNT11, F0900_P2_ERR_CNT11);
dmd_reg(err1field_lsb, F0900_P1_ERR_CNT10, F0900_P2_ERR_CNT10);
dmd_reg(err2field_hsb, F0900_P1_ERR_CNT22, F0900_P2_ERR_CNT22);
dmd_reg(err2field_msb, F0900_P1_ERR_CNT21, F0900_P2_ERR_CNT21);
dmd_reg(err2field_lsb, F0900_P1_ERR_CNT20, F0900_P2_ERR_CNT20);
switch (cntr) {
case 0:
default:
hsb = stv0900_get_bits(i_params, err1field_hsb);
msb = stv0900_get_bits(i_params, err1field_msb);
lsb = stv0900_get_bits(i_params, err1field_lsb);
break;
case 1:
hsb = stv0900_get_bits(i_params, err2field_hsb);
msb = stv0900_get_bits(i_params, err2field_msb);
lsb = stv0900_get_bits(i_params, err2field_lsb);
break;
}
err_val = (hsb << 16) + (msb << 8) + (lsb);
return err_val;
}
static int stv0900_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
u32 fi2c;
dmd_reg(fi2c, F0900_P1_I2CT_ON, F0900_P2_I2CT_ON);
stv0900_write_bits(i_params, fi2c, enable);
return 0;
}
static void stv0900_set_ts_parallel_serial(struct stv0900_internal *i_params,
enum fe_stv0900_clock_type path1_ts,
enum fe_stv0900_clock_type path2_ts)
{
dprintk(KERN_INFO "%s\n", __func__);
if (i_params->chip_id >= 0x20) {
switch (path1_ts) {
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
switch (path2_ts) {
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
stv0900_write_reg(i_params, R0900_TSGENERAL,
0x00);
break;
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
stv0900_write_reg(i_params, R0900_TSGENERAL,
0x06);
stv0900_write_bits(i_params,
F0900_P1_TSFIFO_MANSPEED, 3);
stv0900_write_bits(i_params,
F0900_P2_TSFIFO_MANSPEED, 0);
stv0900_write_reg(i_params,
R0900_P1_TSSPEED, 0x14);
stv0900_write_reg(i_params,
R0900_P2_TSSPEED, 0x28);
break;
}
break;
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
switch (path2_ts) {
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
stv0900_write_reg(i_params,
R0900_TSGENERAL, 0x0C);
break;
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
stv0900_write_reg(i_params,
R0900_TSGENERAL, 0x0A);
dprintk(KERN_INFO "%s: 0x0a\n", __func__);
break;
}
break;
}
} else {
switch (path1_ts) {
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
switch (path2_ts) {
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
stv0900_write_reg(i_params, R0900_TSGENERAL1X,
0x10);
break;
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
stv0900_write_reg(i_params, R0900_TSGENERAL1X,
0x16);
stv0900_write_bits(i_params,
F0900_P1_TSFIFO_MANSPEED, 3);
stv0900_write_bits(i_params,
F0900_P2_TSFIFO_MANSPEED, 0);
stv0900_write_reg(i_params, R0900_P1_TSSPEED,
0x14);
stv0900_write_reg(i_params, R0900_P2_TSSPEED,
0x28);
break;
}
break;
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
switch (path2_ts) {
case STV0900_SERIAL_PUNCT_CLOCK:
case STV0900_SERIAL_CONT_CLOCK:
default:
stv0900_write_reg(i_params, R0900_TSGENERAL1X,
0x14);
break;
case STV0900_PARALLEL_PUNCT_CLOCK:
case STV0900_DVBCI_CLOCK:
stv0900_write_reg(i_params, R0900_TSGENERAL1X,
0x12);
dprintk(KERN_INFO "%s: 0x12\n", __func__);
break;
}
break;
}
}
switch (path1_ts) {
case STV0900_PARALLEL_PUNCT_CLOCK:
stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x00);
stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x00);
break;
case STV0900_DVBCI_CLOCK:
stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x00);
stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x01);
break;
case STV0900_SERIAL_PUNCT_CLOCK:
stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x01);
stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x00);
break;
case STV0900_SERIAL_CONT_CLOCK:
stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x01);
stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x01);
break;
default:
break;
}
switch (path2_ts) {
case STV0900_PARALLEL_PUNCT_CLOCK:
stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x00);
stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x00);
break;
case STV0900_DVBCI_CLOCK:
stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x00);
stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x01);
break;
case STV0900_SERIAL_PUNCT_CLOCK:
stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x01);
stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x00);
break;
case STV0900_SERIAL_CONT_CLOCK:
stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x01);
stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x01);
break;
default:
break;
}
stv0900_write_bits(i_params, F0900_P2_RST_HWARE, 1);
stv0900_write_bits(i_params, F0900_P2_RST_HWARE, 0);
stv0900_write_bits(i_params, F0900_P1_RST_HWARE, 1);
stv0900_write_bits(i_params, F0900_P1_RST_HWARE, 0);
}
void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency,
u32 bandwidth)
{
struct dvb_frontend_ops *frontend_ops = NULL;
struct dvb_tuner_ops *tuner_ops = NULL;
if (&fe->ops)
frontend_ops = &fe->ops;
if (&frontend_ops->tuner_ops)
tuner_ops = &frontend_ops->tuner_ops;
if (tuner_ops->set_frequency) {
if ((tuner_ops->set_frequency(fe, frequency)) < 0)
dprintk("%s: Invalid parameter\n", __func__);
else
dprintk("%s: Frequency=%d\n", __func__, frequency);
}
if (tuner_ops->set_bandwidth) {
if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
dprintk("%s: Invalid parameter\n", __func__);
else
dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
}
}
void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
{
struct dvb_frontend_ops *frontend_ops = NULL;
struct dvb_tuner_ops *tuner_ops = NULL;
if (&fe->ops)
frontend_ops = &fe->ops;
if (&frontend_ops->tuner_ops)
tuner_ops = &frontend_ops->tuner_ops;
if (tuner_ops->set_bandwidth) {
if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0)
dprintk("%s: Invalid parameter\n", __func__);
else
dprintk("%s: Bandwidth=%d\n", __func__, bandwidth);
}
}
static s32 stv0900_get_rf_level(struct stv0900_internal *i_params,
const struct stv0900_table *lookup,
enum fe_stv0900_demod_num demod)
{
s32 agc_gain = 0,
imin,
imax,
i,
rf_lvl = 0;
dprintk(KERN_INFO "%s\n", __func__);
if ((lookup != NULL) && lookup->size) {
switch (demod) {
case STV0900_DEMOD_1:
default:
agc_gain = MAKEWORD(stv0900_get_bits(i_params, F0900_P1_AGCIQ_VALUE1),
stv0900_get_bits(i_params, F0900_P1_AGCIQ_VALUE0));
break;
case STV0900_DEMOD_2:
agc_gain = MAKEWORD(stv0900_get_bits(i_params, F0900_P2_AGCIQ_VALUE1),
stv0900_get_bits(i_params, F0900_P2_AGCIQ_VALUE0));
break;
}
imin = 0;
imax = lookup->size - 1;
if (INRANGE(lookup->table[imin].regval, agc_gain, lookup->table[imax].regval)) {
while ((imax - imin) > 1) {
i = (imax + imin) >> 1;
if (INRANGE(lookup->table[imin].regval, agc_gain, lookup->table[i].regval))
imax = i;
else
imin = i;
}
rf_lvl = (((s32)agc_gain - lookup->table[imin].regval)
* (lookup->table[imax].realval - lookup->table[imin].realval)
/ (lookup->table[imax].regval - lookup->table[imin].regval))
+ lookup->table[imin].realval;
} else if (agc_gain > lookup->table[0].regval)
rf_lvl = 5;
else if (agc_gain < lookup->table[lookup->size-1].regval)
rf_lvl = -100;
}
dprintk(KERN_INFO "%s: RFLevel = %d\n", __func__, rf_lvl);
return rf_lvl;
}
static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *internal = state->internal;
s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf,
state->demod);
*strength = (rflevel + 100) * (16383 / 105);
return 0;
}
static s32 stv0900_carr_get_quality(struct dvb_frontend *fe,
const struct stv0900_table *lookup)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
s32 c_n = -100,
regval, imin, imax,
i,
lock_flag_field,
noise_field1,
noise_field0;
dprintk(KERN_INFO "%s\n", __func__);
dmd_reg(lock_flag_field, F0900_P1_LOCK_DEFINITIF,
F0900_P2_LOCK_DEFINITIF);
if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
dmd_reg(noise_field1, F0900_P1_NOSPLHT_NORMED1,
F0900_P2_NOSPLHT_NORMED1);
dmd_reg(noise_field0, F0900_P1_NOSPLHT_NORMED0,
F0900_P2_NOSPLHT_NORMED0);
} else {
dmd_reg(noise_field1, F0900_P1_NOSDATAT_NORMED1,
F0900_P2_NOSDATAT_NORMED1);
dmd_reg(noise_field0, F0900_P1_NOSDATAT_NORMED0,
F0900_P2_NOSDATAT_NORMED0);
}
if (stv0900_get_bits(i_params, lock_flag_field)) {
if ((lookup != NULL) && lookup->size) {
regval = 0;
msleep(5);
for (i = 0; i < 16; i++) {
regval += MAKEWORD(stv0900_get_bits(i_params,
noise_field1),
stv0900_get_bits(i_params,
noise_field0));
msleep(1);
}
regval /= 16;
imin = 0;
imax = lookup->size - 1;
if (INRANGE(lookup->table[imin].regval,
regval,
lookup->table[imax].regval)) {
while ((imax - imin) > 1) {
i = (imax + imin) >> 1;
if (INRANGE(lookup->table[imin].regval,
regval,
lookup->table[i].regval))
imax = i;
else
imin = i;
}
c_n = ((regval - lookup->table[imin].regval)
* (lookup->table[imax].realval
- lookup->table[imin].realval)
/ (lookup->table[imax].regval
- lookup->table[imin].regval))
+ lookup->table[imin].realval;
} else if (regval < lookup->table[imin].regval)
c_n = 1000;
}
}
return c_n;
}
static int stv0900_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
u8 err_val1, err_val0;
s32 err_field1, err_field0;
u32 header_err_val = 0;
*ucblocks = 0x0;
if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) {
/* DVB-S2 delineator errors count */
/* retreiving number for errnous headers */
dmd_reg(err_field0, R0900_P1_BBFCRCKO0,
R0900_P2_BBFCRCKO0);
dmd_reg(err_field1, R0900_P1_BBFCRCKO1,
R0900_P2_BBFCRCKO1);
err_val1 = stv0900_read_reg(i_params, err_field1);
err_val0 = stv0900_read_reg(i_params, err_field0);
header_err_val = (err_val1<<8) | err_val0;
/* retreiving number for errnous packets */
dmd_reg(err_field0, R0900_P1_UPCRCKO0,
R0900_P2_UPCRCKO0);
dmd_reg(err_field1, R0900_P1_UPCRCKO1,
R0900_P2_UPCRCKO1);
err_val1 = stv0900_read_reg(i_params, err_field1);
err_val0 = stv0900_read_reg(i_params, err_field0);
*ucblocks = (err_val1<<8) | err_val0;
*ucblocks += header_err_val;
}
return 0;
}
static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr)
{
*snr = stv0900_carr_get_quality(fe,
(const struct stv0900_table *)&stv0900_s2_cn);
*snr += 30;
*snr *= (16383 / 1030);
return 0;
}
static u32 stv0900_get_ber(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
u32 ber = 10000000, i;
s32 dmd_state_reg;
s32 demod_state;
s32 vstatus_reg;
s32 prvit_field;
s32 pdel_status_reg;
s32 pdel_lock_field;
dmd_reg(dmd_state_reg, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE);
dmd_reg(vstatus_reg, R0900_P1_VSTATUSVIT, R0900_P2_VSTATUSVIT);
dmd_reg(prvit_field, F0900_P1_PRFVIT, F0900_P2_PRFVIT);
dmd_reg(pdel_status_reg, R0900_P1_PDELSTATUS1, R0900_P2_PDELSTATUS1);
dmd_reg(pdel_lock_field, F0900_P1_PKTDELIN_LOCK,
F0900_P2_PKTDELIN_LOCK);
demod_state = stv0900_get_bits(i_params, dmd_state_reg);
switch (demod_state) {
case STV0900_SEARCH:
case STV0900_PLH_DETECTED:
default:
ber = 10000000;
break;
case STV0900_DVBS_FOUND:
ber = 0;
for (i = 0; i < 5; i++) {
msleep(5);
ber += stv0900_get_err_count(i_params, 0, demod);
}
ber /= 5;
if (stv0900_get_bits(i_params, prvit_field)) {
ber *= 9766;
ber = ber >> 13;
}
break;
case STV0900_DVBS2_FOUND:
ber = 0;
for (i = 0; i < 5; i++) {
msleep(5);
ber += stv0900_get_err_count(i_params, 0, demod);
}
ber /= 5;
if (stv0900_get_bits(i_params, pdel_lock_field)) {
ber *= 9766;
ber = ber >> 13;
}
break;
}
return ber;
}
static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *internal = state->internal;
*ber = stv0900_get_ber(internal, state->demod);
return 0;
}
int stv0900_get_demod_lock(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod, s32 time_out)
{
s32 timer = 0,
lock = 0,
header_field,
lock_field;
enum fe_stv0900_search_state dmd_state;
dmd_reg(header_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE);
dmd_reg(lock_field, F0900_P1_LOCK_DEFINITIF, F0900_P2_LOCK_DEFINITIF);
while ((timer < time_out) && (lock == 0)) {
dmd_state = stv0900_get_bits(i_params, header_field);
dprintk("Demod State = %d\n", dmd_state);
switch (dmd_state) {
case STV0900_SEARCH:
case STV0900_PLH_DETECTED:
default:
lock = 0;
break;
case STV0900_DVBS2_FOUND:
case STV0900_DVBS_FOUND:
lock = stv0900_get_bits(i_params, lock_field);
break;
}
if (lock == 0)
msleep(10);
timer += 10;
}
if (lock)
dprintk("DEMOD LOCK OK\n");
else
dprintk("DEMOD LOCK FAIL\n");
return lock;
}
void stv0900_stop_all_s2_modcod(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
s32 regflist,
i;
dprintk(KERN_INFO "%s\n", __func__);
dmd_reg(regflist, R0900_P1_MODCODLST0, R0900_P2_MODCODLST0);
for (i = 0; i < 16; i++)
stv0900_write_reg(i_params, regflist + i, 0xff);
}
void stv0900_activate_s2_modcode(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
u32 matype,
mod_code,
fmod,
reg_index,
field_index;
dprintk(KERN_INFO "%s\n", __func__);
if (i_params->chip_id <= 0x11) {
msleep(5);
switch (demod) {
case STV0900_DEMOD_1:
default:
mod_code = stv0900_read_reg(i_params,
R0900_P1_PLHMODCOD);
matype = mod_code & 0x3;
mod_code = (mod_code & 0x7f) >> 2;
reg_index = R0900_P1_MODCODLSTF - mod_code / 2;
field_index = mod_code % 2;
break;
case STV0900_DEMOD_2:
mod_code = stv0900_read_reg(i_params,
R0900_P2_PLHMODCOD);
matype = mod_code & 0x3;
mod_code = (mod_code & 0x7f) >> 2;
reg_index = R0900_P2_MODCODLSTF - mod_code / 2;
field_index = mod_code % 2;
break;
}
switch (matype) {
case 0:
default:
fmod = 14;
break;
case 1:
fmod = 13;
break;
case 2:
fmod = 11;
break;
case 3:
fmod = 7;
break;
}
if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910))
&& (matype <= 1)) {
if (field_index == 0)
stv0900_write_reg(i_params, reg_index,
0xf0 | fmod);
else
stv0900_write_reg(i_params, reg_index,
(fmod << 4) | 0xf);
}
} else if (i_params->chip_id >= 0x12) {
switch (demod) {
case STV0900_DEMOD_1:
default:
for (reg_index = 0; reg_index < 7; reg_index++)
stv0900_write_reg(i_params, R0900_P1_MODCODLST0 + reg_index, 0xff);
stv0900_write_reg(i_params, R0900_P1_MODCODLSTE, 0xff);
stv0900_write_reg(i_params, R0900_P1_MODCODLSTF, 0xcf);
for (reg_index = 0; reg_index < 8; reg_index++)
stv0900_write_reg(i_params, R0900_P1_MODCODLST7 + reg_index, 0xcc);
break;
case STV0900_DEMOD_2:
for (reg_index = 0; reg_index < 7; reg_index++)
stv0900_write_reg(i_params, R0900_P2_MODCODLST0 + reg_index, 0xff);
stv0900_write_reg(i_params, R0900_P2_MODCODLSTE, 0xff);
stv0900_write_reg(i_params, R0900_P2_MODCODLSTF, 0xcf);
for (reg_index = 0; reg_index < 8; reg_index++)
stv0900_write_reg(i_params, R0900_P2_MODCODLST7 + reg_index, 0xcc);
break;
}
}
}
void stv0900_activate_s2_modcode_single(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
u32 reg_index;
dprintk(KERN_INFO "%s\n", __func__);
switch (demod) {
case STV0900_DEMOD_1:
default:
stv0900_write_reg(i_params, R0900_P1_MODCODLST0, 0xff);
stv0900_write_reg(i_params, R0900_P1_MODCODLST1, 0xf0);
stv0900_write_reg(i_params, R0900_P1_MODCODLSTF, 0x0f);
for (reg_index = 0; reg_index < 13; reg_index++)
stv0900_write_reg(i_params,
R0900_P1_MODCODLST2 + reg_index, 0);
break;
case STV0900_DEMOD_2:
stv0900_write_reg(i_params, R0900_P2_MODCODLST0, 0xff);
stv0900_write_reg(i_params, R0900_P2_MODCODLST1, 0xf0);
stv0900_write_reg(i_params, R0900_P2_MODCODLSTF, 0x0f);
for (reg_index = 0; reg_index < 13; reg_index++)
stv0900_write_reg(i_params,
R0900_P2_MODCODLST2 + reg_index, 0);
break;
}
}
static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe)
{
return DVBFE_ALGO_CUSTOM;
}
static int stb0900_set_property(struct dvb_frontend *fe,
struct dtv_property *tvp)
{
dprintk(KERN_INFO "%s(..)\n", __func__);
return 0;
}
static int stb0900_get_property(struct dvb_frontend *fe,
struct dtv_property *tvp)
{
dprintk(KERN_INFO "%s(..)\n", __func__);
return 0;
}
void stv0900_start_search(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
switch (demod) {
case STV0900_DEMOD_1:
default:
stv0900_write_bits(i_params, F0900_P1_I2C_DEMOD_MODE, 0x1f);
if (i_params->chip_id == 0x10)
stv0900_write_reg(i_params, R0900_P1_CORRELEXP, 0xaa);
if (i_params->chip_id < 0x20)
stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x55);
if (i_params->dmd1_symbol_rate <= 5000000) {
stv0900_write_reg(i_params, R0900_P1_CARCFG, 0x44);
stv0900_write_reg(i_params, R0900_P1_CFRUP1, 0x0f);
stv0900_write_reg(i_params, R0900_P1_CFRUP0, 0xff);
stv0900_write_reg(i_params, R0900_P1_CFRLOW1, 0xf0);
stv0900_write_reg(i_params, R0900_P1_CFRLOW0, 0x00);
stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x68);
} else {
stv0900_write_reg(i_params, R0900_P1_CARCFG, 0xc4);
stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x44);
}
stv0900_write_reg(i_params, R0900_P1_CFRINIT1, 0);
stv0900_write_reg(i_params, R0900_P1_CFRINIT0, 0);
if (i_params->chip_id >= 0x20) {
stv0900_write_reg(i_params, R0900_P1_EQUALCFG, 0x41);
stv0900_write_reg(i_params, R0900_P1_FFECFG, 0x41);
if ((i_params->dmd1_srch_standard == STV0900_SEARCH_DVBS1) || (i_params->dmd1_srch_standard == STV0900_SEARCH_DSS) || (i_params->dmd1_srch_standard == STV0900_AUTO_SEARCH)) {
stv0900_write_reg(i_params, R0900_P1_VITSCALE, 0x82);
stv0900_write_reg(i_params, R0900_P1_VAVSRVIT, 0x0);
}
}
stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x00);
stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, 0xe0);
stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, 0xc0);
stv0900_write_bits(i_params, F0900_P1_SCAN_ENABLE, 0);
stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0);
stv0900_write_bits(i_params, F0900_P1_S1S2_SEQUENTIAL, 0);
stv0900_write_reg(i_params, R0900_P1_RTC, 0x88);
if (i_params->chip_id >= 0x20) {
if (i_params->dmd1_symbol_rate < 2000000) {
stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x39);
stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x40);
}
if (i_params->dmd1_symbol_rate < 10000000) {
stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x4c);
stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x20);
} else {
stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x4b);
stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x20);
}
} else {
if (i_params->dmd1_symbol_rate < 10000000)
stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xef);
else
stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xed);
}
switch (i_params->dmd1_srch_algo) {
case STV0900_WARM_START:
stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1f);
stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18);
break;
case STV0900_COLD_START:
stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1f);
stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x15);
break;
default:
break;
}
break;
case STV0900_DEMOD_2:
stv0900_write_bits(i_params, F0900_P2_I2C_DEMOD_MODE, 0x1f);
if (i_params->chip_id == 0x10)
stv0900_write_reg(i_params, R0900_P2_CORRELEXP, 0xaa);
if (i_params->chip_id < 0x20)
stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x55);
if (i_params->dmd2_symbol_rate <= 5000000) {
stv0900_write_reg(i_params, R0900_P2_CARCFG, 0x44);
stv0900_write_reg(i_params, R0900_P2_CFRUP1, 0x0f);
stv0900_write_reg(i_params, R0900_P2_CFRUP0, 0xff);
stv0900_write_reg(i_params, R0900_P2_CFRLOW1, 0xf0);
stv0900_write_reg(i_params, R0900_P2_CFRLOW0, 0x00);
stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x68);
} else {
stv0900_write_reg(i_params, R0900_P2_CARCFG, 0xc4);
stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x44);
}
stv0900_write_reg(i_params, R0900_P2_CFRINIT1, 0);
stv0900_write_reg(i_params, R0900_P2_CFRINIT0, 0);
if (i_params->chip_id >= 0x20) {
stv0900_write_reg(i_params, R0900_P2_EQUALCFG, 0x41);
stv0900_write_reg(i_params, R0900_P2_FFECFG, 0x41);
if ((i_params->dmd2_srch_stndrd == STV0900_SEARCH_DVBS1) || (i_params->dmd2_srch_stndrd == STV0900_SEARCH_DSS) || (i_params->dmd2_srch_stndrd == STV0900_AUTO_SEARCH)) {
stv0900_write_reg(i_params, R0900_P2_VITSCALE, 0x82);
stv0900_write_reg(i_params, R0900_P2_VAVSRVIT, 0x0);
}
}
stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x00);
stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, 0xe0);
stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, 0xc0);
stv0900_write_bits(i_params, F0900_P2_SCAN_ENABLE, 0);
stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0);
stv0900_write_bits(i_params, F0900_P2_S1S2_SEQUENTIAL, 0);
stv0900_write_reg(i_params, R0900_P2_RTC, 0x88);
if (i_params->chip_id >= 0x20) {
if (i_params->dmd2_symbol_rate < 2000000) {
stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x39);
stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x40);
}
if (i_params->dmd2_symbol_rate < 10000000) {
stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x4c);
stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x20);
} else {
stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x4b);
stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x20);
}
} else {
if (i_params->dmd2_symbol_rate < 10000000)
stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xef);
else
stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xed);
}
switch (i_params->dmd2_srch_algo) {
case STV0900_WARM_START:
stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1f);
stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18);
break;
case STV0900_COLD_START:
stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1f);
stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x15);
break;
default:
break;
}
break;
}
}
u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode,
s32 pilot, u8 chip_id)
{
u8 aclc_value = 0x29;
s32 i;
const struct stv0900_car_loop_optim *car_loop_s2;
dprintk(KERN_INFO "%s\n", __func__);
if (chip_id <= 0x12)
car_loop_s2 = FE_STV0900_S2CarLoop;
else if (chip_id == 0x20)
car_loop_s2 = FE_STV0900_S2CarLoopCut20;
else
car_loop_s2 = FE_STV0900_S2CarLoop;
if (modcode < STV0900_QPSK_12) {
i = 0;
while ((i < 3) && (modcode != FE_STV0900_S2LowQPCarLoopCut20[i].modcode))
i++;
if (i >= 3)
i = 2;
} else {
i = 0;
while ((i < 14) && (modcode != car_loop_s2[i].modcode))
i++;
if (i >= 14) {
i = 0;
while ((i < 11) && (modcode != FE_STV0900_S2APSKCarLoopCut20[i].modcode))
i++;
if (i >= 11)
i = 10;
}
}
if (modcode <= STV0900_QPSK_25) {
if (pilot) {
if (srate <= 3000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_2;
else if (srate <= 7000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_5;
else if (srate <= 15000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_10;
else if (srate <= 25000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_20;
else
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_30;
} else {
if (srate <= 3000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_2;
else if (srate <= 7000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_5;
else if (srate <= 15000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_10;
else if (srate <= 25000000)
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_20;
else
aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_30;
}
} else if (modcode <= STV0900_8PSK_910) {
if (pilot) {
if (srate <= 3000000)
aclc_value = car_loop_s2[i].car_loop_pilots_on_2;
else if (srate <= 7000000)
aclc_value = car_loop_s2[i].car_loop_pilots_on_5;
else if (srate <= 15000000)
aclc_value = car_loop_s2[i].car_loop_pilots_on_10;
else if (srate <= 25000000)
aclc_value = car_loop_s2[i].car_loop_pilots_on_20;
else
aclc_value = car_loop_s2[i].car_loop_pilots_on_30;
} else {
if (srate <= 3000000)
aclc_value = car_loop_s2[i].car_loop_pilots_off_2;
else if (srate <= 7000000)
aclc_value = car_loop_s2[i].car_loop_pilots_off_5;
else if (srate <= 15000000)
aclc_value = car_loop_s2[i].car_loop_pilots_off_10;
else if (srate <= 25000000)
aclc_value = car_loop_s2[i].car_loop_pilots_off_20;
else
aclc_value = car_loop_s2[i].car_loop_pilots_off_30;
}
} else {
if (srate <= 3000000)
aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_2;
else if (srate <= 7000000)
aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_5;
else if (srate <= 15000000)
aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_10;
else if (srate <= 25000000)
aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_20;
else
aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_30;
}
return aclc_value;
}
u8 stv0900_get_optim_short_carr_loop(s32 srate, enum fe_stv0900_modulation modulation, u8 chip_id)
{
s32 mod_index = 0;
u8 aclc_value = 0x0b;
dprintk(KERN_INFO "%s\n", __func__);
switch (modulation) {
case STV0900_QPSK:
default:
mod_index = 0;
break;
case STV0900_8PSK:
mod_index = 1;
break;
case STV0900_16APSK:
mod_index = 2;
break;
case STV0900_32APSK:
mod_index = 3;
break;
}
switch (chip_id) {
case 0x20:
if (srate <= 3000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_2;
else if (srate <= 7000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_5;
else if (srate <= 15000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_10;
else if (srate <= 25000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_20;
else
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_30;
break;
case 0x12:
default:
if (srate <= 3000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_2;
else if (srate <= 7000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_5;
else if (srate <= 15000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_10;
else if (srate <= 25000000)
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_20;
else
aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_30;
break;
}
return aclc_value;
}
static enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *i_params,
enum fe_stv0900_demod_mode LDPC_Mode,
enum fe_stv0900_demod_num demod)
{
enum fe_stv0900_error error = STV0900_NO_ERROR;
dprintk(KERN_INFO "%s\n", __func__);
switch (LDPC_Mode) {
case STV0900_DUAL:
default:
if ((i_params->demod_mode != STV0900_DUAL)
|| (stv0900_get_bits(i_params, F0900_DDEMOD) != 1)) {
stv0900_write_reg(i_params, R0900_GENCFG, 0x1d);
i_params->demod_mode = STV0900_DUAL;
stv0900_write_bits(i_params, F0900_FRESFEC, 1);
stv0900_write_bits(i_params, F0900_FRESFEC, 0);
}
break;
case STV0900_SINGLE:
if (demod == STV0900_DEMOD_2)
stv0900_write_reg(i_params, R0900_GENCFG, 0x06);
else
stv0900_write_reg(i_params, R0900_GENCFG, 0x04);
i_params->demod_mode = STV0900_SINGLE;
stv0900_write_bits(i_params, F0900_FRESFEC, 1);
stv0900_write_bits(i_params, F0900_FRESFEC, 0);
stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 1);
stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 0);
stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 1);
stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 0);
break;
}
return error;
}
static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
struct stv0900_init_params *p_init)
{
struct stv0900_state *state = fe->demodulator_priv;
enum fe_stv0900_error error = STV0900_NO_ERROR;
enum fe_stv0900_error demodError = STV0900_NO_ERROR;
int selosci, i;
struct stv0900_inode *temp_int = find_inode(state->i2c_adap,
state->config->demod_address);
dprintk(KERN_INFO "%s\n", __func__);
if (temp_int != NULL) {
state->internal = temp_int->internal;
(state->internal->dmds_used)++;
dprintk(KERN_INFO "%s: Find Internal Structure!\n", __func__);
return STV0900_NO_ERROR;
} else {
state->internal = kmalloc(sizeof(struct stv0900_internal), GFP_KERNEL);
temp_int = append_internal(state->internal);
state->internal->dmds_used = 1;
state->internal->i2c_adap = state->i2c_adap;
state->internal->i2c_addr = state->config->demod_address;
state->internal->clkmode = state->config->clkmode;
state->internal->errs = STV0900_NO_ERROR;
dprintk(KERN_INFO "%s: Create New Internal Structure!\n", __func__);
}
if (state->internal != NULL) {
demodError = stv0900_initialize(state->internal);
if (demodError == STV0900_NO_ERROR) {
error = STV0900_NO_ERROR;
} else {
if (demodError == STV0900_INVALID_HANDLE)
error = STV0900_INVALID_HANDLE;
else
error = STV0900_I2C_ERROR;
}
if (state->internal != NULL) {
if (error == STV0900_NO_ERROR) {
state->internal->demod_mode = p_init->demod_mode;
stv0900_st_dvbs2_single(state->internal, state->internal->demod_mode, STV0900_DEMOD_1);
state->internal->chip_id = stv0900_read_reg(state->internal, R0900_MID);
state->internal->rolloff = p_init->rolloff;
state->internal->quartz = p_init->dmd_ref_clk;
stv0900_write_bits(state->internal, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff);
stv0900_write_bits(state->internal, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff);
state->internal->ts_config = p_init->ts_config;
if (state->internal->ts_config == NULL)
stv0900_set_ts_parallel_serial(state->internal,
p_init->path1_ts_clock,
p_init->path2_ts_clock);
else {
for (i = 0; state->internal->ts_config[i].addr != 0xffff; i++)
stv0900_write_reg(state->internal,
state->internal->ts_config[i].addr,
state->internal->ts_config[i].val);
stv0900_write_bits(state->internal, F0900_P2_RST_HWARE, 1);
stv0900_write_bits(state->internal, F0900_P2_RST_HWARE, 0);
stv0900_write_bits(state->internal, F0900_P1_RST_HWARE, 1);
stv0900_write_bits(state->internal, F0900_P1_RST_HWARE, 0);
}
stv0900_write_bits(state->internal, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress);
switch (p_init->tuner1_adc) {
case 1:
stv0900_write_reg(state->internal, R0900_TSTTNR1, 0x26);
break;
default:
break;
}
stv0900_write_bits(state->internal, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress);
switch (p_init->tuner2_adc) {
case 1:
stv0900_write_reg(state->internal, R0900_TSTTNR3, 0x26);
break;
default:
break;
}
stv0900_write_bits(state->internal, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inversion);
stv0900_write_bits(state->internal, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inversion);
stv0900_set_mclk(state->internal, 135000000);
msleep(3);
switch (state->internal->clkmode) {
case 0:
case 2:
stv0900_write_reg(state->internal, R0900_SYNTCTRL, 0x20 | state->internal->clkmode);
break;
default:
selosci = 0x02 & stv0900_read_reg(state->internal, R0900_SYNTCTRL);
stv0900_write_reg(state->internal, R0900_SYNTCTRL, 0x20 | selosci);
break;
}
msleep(3);
state->internal->mclk = stv0900_get_mclk_freq(state->internal, state->internal->quartz);
if (state->internal->errs)
error = STV0900_I2C_ERROR;
}
} else {
error = STV0900_INVALID_HANDLE;
}
}
return error;
}
static int stv0900_status(struct stv0900_internal *i_params,
enum fe_stv0900_demod_num demod)
{
enum fe_stv0900_search_state demod_state;
s32 mode_field, delin_field, lock_field, fifo_field, lockedvit_field;
int locked = FALSE;
dmd_reg(mode_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE);
dmd_reg(lock_field, F0900_P1_LOCK_DEFINITIF, F0900_P2_LOCK_DEFINITIF);
dmd_reg(delin_field, F0900_P1_PKTDELIN_LOCK, F0900_P2_PKTDELIN_LOCK);
dmd_reg(fifo_field, F0900_P1_TSFIFO_LINEOK, F0900_P2_TSFIFO_LINEOK);
dmd_reg(lockedvit_field, F0900_P1_LOCKEDVIT, F0900_P2_LOCKEDVIT);
demod_state = stv0900_get_bits(i_params, mode_field);
switch (demod_state) {
case STV0900_SEARCH:
case STV0900_PLH_DETECTED:
default:
locked = FALSE;
break;
case STV0900_DVBS2_FOUND:
locked = stv0900_get_bits(i_params, lock_field) &&
stv0900_get_bits(i_params, delin_field) &&
stv0900_get_bits(i_params, fifo_field);
break;
case STV0900_DVBS_FOUND:
locked = stv0900_get_bits(i_params, lock_field) &&
stv0900_get_bits(i_params, lockedvit_field) &&
stv0900_get_bits(i_params, fifo_field);
break;
}
return locked;
}
static enum dvbfe_search stv0900_search(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct stv0900_search_params p_search;
struct stv0900_signal_info p_result;
enum fe_stv0900_error error = STV0900_NO_ERROR;
dprintk(KERN_INFO "%s: ", __func__);
p_result.locked = FALSE;
p_search.path = state->demod;
p_search.frequency = c->frequency;
p_search.symbol_rate = c->symbol_rate;
p_search.search_range = 10000000;
p_search.fec = STV0900_FEC_UNKNOWN;
p_search.standard = STV0900_AUTO_SEARCH;
p_search.iq_inversion = STV0900_IQ_AUTO;
p_search.search_algo = STV0900_BLIND_SEARCH;
if ((INRANGE(100000, p_search.symbol_rate, 70000000)) &&
(INRANGE(100000, p_search.search_range, 50000000))) {
switch (p_search.path) {
case STV0900_DEMOD_1:
default:
i_params->dmd1_srch_standard = p_search.standard;
i_params->dmd1_symbol_rate = p_search.symbol_rate;
i_params->dmd1_srch_range = p_search.search_range;
i_params->tuner1_freq = p_search.frequency;
i_params->dmd1_srch_algo = p_search.search_algo;
i_params->dmd1_srch_iq_inv = p_search.iq_inversion;
i_params->dmd1_fec = p_search.fec;
break;
case STV0900_DEMOD_2:
i_params->dmd2_srch_stndrd = p_search.standard;
i_params->dmd2_symbol_rate = p_search.symbol_rate;
i_params->dmd2_srch_range = p_search.search_range;
i_params->tuner2_freq = p_search.frequency;
i_params->dmd2_srch_algo = p_search.search_algo;
i_params->dmd2_srch_iq_inv = p_search.iq_inversion;
i_params->dmd2_fec = p_search.fec;
break;
}
if ((stv0900_algo(fe) == STV0900_RANGEOK) &&
(i_params->errs == STV0900_NO_ERROR)) {
switch (p_search.path) {
case STV0900_DEMOD_1:
default:
p_result.locked = i_params->dmd1_rslts.locked;
p_result.standard = i_params->dmd1_rslts.standard;
p_result.frequency = i_params->dmd1_rslts.frequency;
p_result.symbol_rate = i_params->dmd1_rslts.symbol_rate;
p_result.fec = i_params->dmd1_rslts.fec;
p_result.modcode = i_params->dmd1_rslts.modcode;
p_result.pilot = i_params->dmd1_rslts.pilot;
p_result.frame_length = i_params->dmd1_rslts.frame_length;
p_result.spectrum = i_params->dmd1_rslts.spectrum;
p_result.rolloff = i_params->dmd1_rslts.rolloff;
p_result.modulation = i_params->dmd1_rslts.modulation;
break;
case STV0900_DEMOD_2:
p_result.locked = i_params->dmd2_rslts.locked;
p_result.standard = i_params->dmd2_rslts.standard;
p_result.frequency = i_params->dmd2_rslts.frequency;
p_result.symbol_rate = i_params->dmd2_rslts.symbol_rate;
p_result.fec = i_params->dmd2_rslts.fec;
p_result.modcode = i_params->dmd2_rslts.modcode;
p_result.pilot = i_params->dmd2_rslts.pilot;
p_result.frame_length = i_params->dmd2_rslts.frame_length;
p_result.spectrum = i_params->dmd2_rslts.spectrum;
p_result.rolloff = i_params->dmd2_rslts.rolloff;
p_result.modulation = i_params->dmd2_rslts.modulation;
break;
}
} else {
p_result.locked = FALSE;
switch (p_search.path) {
case STV0900_DEMOD_1:
switch (i_params->dmd1_err) {
case STV0900_I2C_ERROR:
error = STV0900_I2C_ERROR;
break;
case STV0900_NO_ERROR:
default:
error = STV0900_SEARCH_FAILED;
break;
}
break;
case STV0900_DEMOD_2:
switch (i_params->dmd2_err) {
case STV0900_I2C_ERROR:
error = STV0900_I2C_ERROR;
break;
case STV0900_NO_ERROR:
default:
error = STV0900_SEARCH_FAILED;
break;
}
break;
}
}
} else
error = STV0900_BAD_PARAMETER;
if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) {
dprintk(KERN_INFO "Search Success\n");
return DVBFE_ALGO_SEARCH_SUCCESS;
} else {
dprintk(KERN_INFO "Search Fail\n");
return DVBFE_ALGO_SEARCH_FAILED;
}
return DVBFE_ALGO_SEARCH_ERROR;
}
static int stv0900_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct stv0900_state *state = fe->demodulator_priv;
dprintk("%s: ", __func__);
if ((stv0900_status(state->internal, state->demod)) == TRUE) {
dprintk("DEMOD LOCK OK\n");
*status = FE_HAS_CARRIER
| FE_HAS_VITERBI
| FE_HAS_SYNC
| FE_HAS_LOCK;
} else
dprintk("DEMOD LOCK FAIL\n");
return 0;
}
static int stv0900_track(struct dvb_frontend *fe,
struct dvb_frontend_parameters *p)
{
return 0;
}
static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
s32 rst_field;
dmd_reg(rst_field, F0900_P1_RST_HWARE, F0900_P2_RST_HWARE);
if (stop_ts == TRUE)
stv0900_write_bits(i_params, rst_field, 1);
else
stv0900_write_bits(i_params, rst_field, 0);
return 0;
}
static int stv0900_diseqc_init(struct dvb_frontend *fe)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
s32 mode_field, reset_field;
dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE);
dmd_reg(reset_field, F0900_P1_DISEQC_RESET, F0900_P2_DISEQC_RESET);
stv0900_write_bits(i_params, mode_field, state->config->diseqc_mode);
stv0900_write_bits(i_params, reset_field, 1);
stv0900_write_bits(i_params, reset_field, 0);
return 0;
}
static int stv0900_init(struct dvb_frontend *fe)
{
dprintk(KERN_INFO "%s\n", __func__);
stv0900_stop_ts(fe, 1);
stv0900_diseqc_init(fe);
return 0;
}
static int stv0900_diseqc_send(struct stv0900_internal *i_params , u8 *Data,
u32 NbData, enum fe_stv0900_demod_num demod)
{
s32 i = 0;
switch (demod) {
case STV0900_DEMOD_1:
default:
stv0900_write_bits(i_params, F0900_P1_DIS_PRECHARGE, 1);
while (i < NbData) {
while (stv0900_get_bits(i_params, F0900_P1_FIFO_FULL))
;/* checkpatch complains */
stv0900_write_reg(i_params, R0900_P1_DISTXDATA, Data[i]);
i++;
}
stv0900_write_bits(i_params, F0900_P1_DIS_PRECHARGE, 0);
i = 0;
while ((stv0900_get_bits(i_params, F0900_P1_TX_IDLE) != 1) && (i < 10)) {
msleep(10);
i++;
}
break;
case STV0900_DEMOD_2:
stv0900_write_bits(i_params, F0900_P2_DIS_PRECHARGE, 1);
while (i < NbData) {
while (stv0900_get_bits(i_params, F0900_P2_FIFO_FULL))
;/* checkpatch complains */
stv0900_write_reg(i_params, R0900_P2_DISTXDATA, Data[i]);
i++;
}
stv0900_write_bits(i_params, F0900_P2_DIS_PRECHARGE, 0);
i = 0;
while ((stv0900_get_bits(i_params, F0900_P2_TX_IDLE) != 1) && (i < 10)) {
msleep(10);
i++;
}
break;
}
return 0;
}
static int stv0900_send_master_cmd(struct dvb_frontend *fe,
struct dvb_diseqc_master_cmd *cmd)
{
struct stv0900_state *state = fe->demodulator_priv;
return stv0900_diseqc_send(state->internal,
cmd->msg,
cmd->msg_len,
state->demod);
}
static int stv0900_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
s32 mode_field;
u32 diseqc_fifo;
dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE);
dmd_reg(diseqc_fifo, R0900_P1_DISTXDATA, R0900_P2_DISTXDATA);
switch (burst) {
case SEC_MINI_A:
stv0900_write_bits(i_params, mode_field, 3);/* Unmodulated */
stv0900_write_reg(i_params, diseqc_fifo, 0x00);
break;
case SEC_MINI_B:
stv0900_write_bits(i_params, mode_field, 2);/* Modulated */
stv0900_write_reg(i_params, diseqc_fifo, 0xff);
break;
}
return 0;
}
static int stv0900_recv_slave_reply(struct dvb_frontend *fe,
struct dvb_diseqc_slave_reply *reply)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
s32 i = 0;
switch (state->demod) {
case STV0900_DEMOD_1:
default:
reply->msg_len = 0;
while ((stv0900_get_bits(i_params, F0900_P1_RX_END) != 1) && (i < 10)) {
msleep(10);
i++;
}
if (stv0900_get_bits(i_params, F0900_P1_RX_END)) {
reply->msg_len = stv0900_get_bits(i_params, F0900_P1_FIFO_BYTENBR);
for (i = 0; i < reply->msg_len; i++)
reply->msg[i] = stv0900_read_reg(i_params, R0900_P1_DISRXDATA);
}
break;
case STV0900_DEMOD_2:
reply->msg_len = 0;
while ((stv0900_get_bits(i_params, F0900_P2_RX_END) != 1) && (i < 10)) {
msleep(10);
i++;
}
if (stv0900_get_bits(i_params, F0900_P2_RX_END)) {
reply->msg_len = stv0900_get_bits(i_params, F0900_P2_FIFO_BYTENBR);
for (i = 0; i < reply->msg_len; i++)
reply->msg[i] = stv0900_read_reg(i_params, R0900_P2_DISRXDATA);
}
break;
}
return 0;
}
static int stv0900_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
{
struct stv0900_state *state = fe->demodulator_priv;
struct stv0900_internal *i_params = state->internal;
enum fe_stv0900_demod_num demod = state->demod;
s32 mode_field, reset_field;
dprintk(KERN_INFO "%s: %s\n", __func__, ((tone == 0) ? "Off" : "On"));
dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE);
dmd_reg(reset_field, F0900_P1_DISEQC_RESET, F0900_P2_DISEQC_RESET);
if (tone) {
/*Set the DiseqC mode to 22Khz continues tone*/
stv0900_write_bits(i_params, mode_field, 0);
stv0900_write_bits(i_params, reset_field, 1);
/*release DiseqC reset to enable the 22KHz tone*/
stv0900_write_bits(i_params, reset_field, 0);
} else {
stv0900_write_bits(i_params, mode_field, 0);
/*maintain the DiseqC reset to disable the 22KHz tone*/
stv0900_write_bits(i_params, reset_field, 1);
}
return 0;
}
static void stv0900_release(struct dvb_frontend *fe)
{
struct stv0900_state *state = fe->demodulator_priv;
dprintk(KERN_INFO "%s\n", __func__);
if ((--(state->internal->dmds_used)) <= 0) {
dprintk(KERN_INFO "%s: Actually removing\n", __func__);
remove_inode(state->internal);
kfree(state->internal);
}
kfree(state);
}
static struct dvb_frontend_ops stv0900_ops = {
.info = {
.name = "STV0900 frontend",
.type = FE_QPSK,
.frequency_min = 950000,
.frequency_max = 2150000,
.frequency_stepsize = 125,
.frequency_tolerance = 0,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
.symbol_rate_tolerance = 500,
.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 | FE_CAN_QPSK |
FE_CAN_2G_MODULATION |
FE_CAN_FEC_AUTO
},
.release = stv0900_release,
.init = stv0900_init,
.get_frontend_algo = stv0900_frontend_algo,
.i2c_gate_ctrl = stv0900_i2c_gate_ctrl,
.diseqc_send_master_cmd = stv0900_send_master_cmd,
.diseqc_send_burst = stv0900_send_burst,
.diseqc_recv_slave_reply = stv0900_recv_slave_reply,
.set_tone = stv0900_set_tone,
.set_property = stb0900_set_property,
.get_property = stb0900_get_property,
.search = stv0900_search,
.track = stv0900_track,
.read_status = stv0900_read_status,
.read_ber = stv0900_read_ber,
.read_signal_strength = stv0900_read_signal_strength,
.read_snr = stv0900_read_snr,
.read_ucblocks = stv0900_read_ucblocks,
};
struct dvb_frontend *stv0900_attach(const struct stv0900_config *config,
struct i2c_adapter *i2c,
int demod)
{
struct stv0900_state *state = NULL;
struct stv0900_init_params init_params;
enum fe_stv0900_error err_stv0900;
state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL);
if (state == NULL)
goto error;
state->demod = demod;
state->config = config;
state->i2c_adap = i2c;
memcpy(&state->frontend.ops, &stv0900_ops,
sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
switch (demod) {
case 0:
case 1:
init_params.dmd_ref_clk = config->xtal;
init_params.demod_mode = STV0900_DUAL;
init_params.rolloff = STV0900_35;
init_params.path1_ts_clock = config->path1_mode;
init_params.tun1_maddress = config->tun1_maddress;
init_params.tun1_iq_inversion = STV0900_IQ_NORMAL;
init_params.tuner1_adc = config->tun1_adc;
init_params.path2_ts_clock = config->path2_mode;
init_params.ts_config = config->ts_config_regs;
init_params.tun2_maddress = config->tun2_maddress;
init_params.tuner2_adc = config->tun2_adc;
init_params.tun2_iq_inversion = STV0900_IQ_SWAPPED;
err_stv0900 = stv0900_init_internal(&state->frontend,
&init_params);
if (err_stv0900)
goto error;
break;
default:
goto error;
break;
}
dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod);
return &state->frontend;
error:
dprintk("%s: Failed to attach STV0900 demodulator(%d) \n",
__func__, demod);
kfree(state);
return NULL;
}
EXPORT_SYMBOL(stv0900_attach);
MODULE_PARM_DESC(debug, "Set debug");
MODULE_AUTHOR("Igor M. Liplianin");
MODULE_DESCRIPTION("ST STV0900 frontend");
MODULE_LICENSE("GPL");
View Git Blame Copy Permalink