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linux/linux-5.4.31/drivers/media/dvb-frontends/helene.c

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2024-01-30 10:43:28 +00:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* helene.c
*
* Sony HELENE DVB-S/S2 DVB-T/T2 DVB-C/C2 ISDB-T/S tuner driver (CXD2858ER)
*
* Copyright 2012 Sony Corporation
* Copyright (C) 2014 NetUP Inc.
* Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/dvb/frontend.h>
#include <linux/types.h>
#include "helene.h"
#include <media/dvb_frontend.h>
#define MAX_WRITE_REGSIZE 20
enum helene_state {
STATE_UNKNOWN,
STATE_SLEEP,
STATE_ACTIVE
};
struct helene_priv {
u32 frequency;
u8 i2c_address;
struct i2c_adapter *i2c;
enum helene_state state;
void *set_tuner_data;
int (*set_tuner)(void *, int);
enum helene_xtal xtal;
};
#define TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system) \
(((tv_system) != SONY_HELENE_DTV_DVBC_6) && \
((tv_system) != SONY_HELENE_DTV_DVBC_8)\
&& ((tv_system) != SONY_HELENE_DTV_DVBC2_6) && \
((tv_system) != SONY_HELENE_DTV_DVBC2_8))
#define HELENE_AUTO 0xff
#define HELENE_OFFSET(ofs) ((u8)(ofs) & 0x1F)
#define HELENE_BW_6 0x00
#define HELENE_BW_7 0x01
#define HELENE_BW_8 0x02
#define HELENE_BW_1_7 0x03
enum helene_tv_system_t {
SONY_HELENE_TV_SYSTEM_UNKNOWN,
/* Terrestrial Analog */
SONY_HELENE_ATV_MN_EIAJ,
/**< System-M (Japan) (IF: Fp=5.75MHz in default) */
SONY_HELENE_ATV_MN_SAP,
/**< System-M (US) (IF: Fp=5.75MHz in default) */
SONY_HELENE_ATV_MN_A2,
/**< System-M (Korea) (IF: Fp=5.9MHz in default) */
SONY_HELENE_ATV_BG,
/**< System-B/G (IF: Fp=7.3MHz in default) */
SONY_HELENE_ATV_I,
/**< System-I (IF: Fp=7.85MHz in default) */
SONY_HELENE_ATV_DK,
/**< System-D/K (IF: Fp=7.85MHz in default) */
SONY_HELENE_ATV_L,
/**< System-L (IF: Fp=7.85MHz in default) */
SONY_HELENE_ATV_L_DASH,
/**< System-L DASH (IF: Fp=2.2MHz in default) */
/* Terrestrial/Cable Digital */
SONY_HELENE_DTV_8VSB,
/**< ATSC 8VSB (IF: Fc=3.7MHz in default) */
SONY_HELENE_DTV_QAM,
/**< US QAM (IF: Fc=3.7MHz in default) */
SONY_HELENE_DTV_ISDBT_6,
/**< ISDB-T 6MHzBW (IF: Fc=3.55MHz in default) */
SONY_HELENE_DTV_ISDBT_7,
/**< ISDB-T 7MHzBW (IF: Fc=4.15MHz in default) */
SONY_HELENE_DTV_ISDBT_8,
/**< ISDB-T 8MHzBW (IF: Fc=4.75MHz in default) */
SONY_HELENE_DTV_DVBT_5,
/**< DVB-T 5MHzBW (IF: Fc=3.6MHz in default) */
SONY_HELENE_DTV_DVBT_6,
/**< DVB-T 6MHzBW (IF: Fc=3.6MHz in default) */
SONY_HELENE_DTV_DVBT_7,
/**< DVB-T 7MHzBW (IF: Fc=4.2MHz in default) */
SONY_HELENE_DTV_DVBT_8,
/**< DVB-T 8MHzBW (IF: Fc=4.8MHz in default) */
SONY_HELENE_DTV_DVBT2_1_7,
/**< DVB-T2 1.7MHzBW (IF: Fc=3.5MHz in default) */
SONY_HELENE_DTV_DVBT2_5,
/**< DVB-T2 5MHzBW (IF: Fc=3.6MHz in default) */
SONY_HELENE_DTV_DVBT2_6,
/**< DVB-T2 6MHzBW (IF: Fc=3.6MHz in default) */
SONY_HELENE_DTV_DVBT2_7,
/**< DVB-T2 7MHzBW (IF: Fc=4.2MHz in default) */
SONY_HELENE_DTV_DVBT2_8,
/**< DVB-T2 8MHzBW (IF: Fc=4.8MHz in default) */
SONY_HELENE_DTV_DVBC_6,
/**< DVB-C 6MHzBW (IF: Fc=3.7MHz in default) */
SONY_HELENE_DTV_DVBC_8,
/**< DVB-C 8MHzBW (IF: Fc=4.9MHz in default) */
SONY_HELENE_DTV_DVBC2_6,
/**< DVB-C2 6MHzBW (IF: Fc=3.7MHz in default) */
SONY_HELENE_DTV_DVBC2_8,
/**< DVB-C2 8MHzBW (IF: Fc=4.9MHz in default) */
SONY_HELENE_DTV_DTMB,
/**< DTMB (IF: Fc=5.1MHz in default) */
/* Satellite */
SONY_HELENE_STV_ISDBS,
/**< ISDB-S */
SONY_HELENE_STV_DVBS,
/**< DVB-S */
SONY_HELENE_STV_DVBS2,
/**< DVB-S2 */
SONY_HELENE_ATV_MIN = SONY_HELENE_ATV_MN_EIAJ,
/**< Minimum analog terrestrial system */
SONY_HELENE_ATV_MAX = SONY_HELENE_ATV_L_DASH,
/**< Maximum analog terrestrial system */
SONY_HELENE_DTV_MIN = SONY_HELENE_DTV_8VSB,
/**< Minimum digital terrestrial system */
SONY_HELENE_DTV_MAX = SONY_HELENE_DTV_DTMB,
/**< Maximum digital terrestrial system */
SONY_HELENE_TERR_TV_SYSTEM_NUM,
/**< Number of supported terrestrial broadcasting system */
SONY_HELENE_STV_MIN = SONY_HELENE_STV_ISDBS,
/**< Minimum satellite system */
SONY_HELENE_STV_MAX = SONY_HELENE_STV_DVBS2
/**< Maximum satellite system */
};
struct helene_terr_adjust_param_t {
/* < Addr:0x69 Bit[6:4] : RFVGA gain.
* 0xFF means Auto. (RF_GAIN_SEL = 1)
*/
uint8_t RF_GAIN;
/* < Addr:0x69 Bit[3:0] : IF_BPF gain.
*/
uint8_t IF_BPF_GC;
/* < Addr:0x6B Bit[3:0] : RF overload
* RF input detect level. (FRF <= 172MHz)
*/
uint8_t RFOVLD_DET_LV1_VL;
/* < Addr:0x6B Bit[3:0] : RF overload
* RF input detect level. (172MHz < FRF <= 464MHz)
*/
uint8_t RFOVLD_DET_LV1_VH;
/* < Addr:0x6B Bit[3:0] : RF overload
* RF input detect level. (FRF > 464MHz)
*/
uint8_t RFOVLD_DET_LV1_U;
/* < Addr:0x6C Bit[2:0] :
* Internal RFAGC detect level. (FRF <= 172MHz)
*/
uint8_t IFOVLD_DET_LV_VL;
/* < Addr:0x6C Bit[2:0] :
* Internal RFAGC detect level. (172MHz < FRF <= 464MHz)
*/
uint8_t IFOVLD_DET_LV_VH;
/* < Addr:0x6C Bit[2:0] :
* Internal RFAGC detect level. (FRF > 464MHz)
*/
uint8_t IFOVLD_DET_LV_U;
/* < Addr:0x6D Bit[5:4] :
* IF filter center offset.
*/
uint8_t IF_BPF_F0;
/* < Addr:0x6D Bit[1:0] :
* 6MHzBW(0x00) or 7MHzBW(0x01)
* or 8MHzBW(0x02) or 1.7MHzBW(0x03)
*/
uint8_t BW;
/* < Addr:0x6E Bit[4:0] :
* 5bit signed. IF offset (kHz) = FIF_OFFSET x 50
*/
uint8_t FIF_OFFSET;
/* < Addr:0x6F Bit[4:0] :
* 5bit signed. BW offset (kHz) =
* BW_OFFSET x 50 (BW_OFFSET x 10 in 1.7MHzBW)
*/
uint8_t BW_OFFSET;
/* < Addr:0x9C Bit[0] :
* Local polarity. (0: Upper Local, 1: Lower Local)
*/
uint8_t IS_LOWERLOCAL;
};
static const struct helene_terr_adjust_param_t
terr_params[SONY_HELENE_TERR_TV_SYSTEM_NUM] = {
/*< SONY_HELENE_TV_SYSTEM_UNKNOWN */
{HELENE_AUTO, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
HELENE_BW_6, HELENE_OFFSET(0), HELENE_OFFSET(0), 0x00},
/* Analog */
/**< SONY_HELENE_ATV_MN_EIAJ (System-M (Japan)) */
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_6, HELENE_OFFSET(0), HELENE_OFFSET(1), 0x00},
/**< SONY_HELENE_ATV_MN_SAP (System-M (US)) */
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_6, HELENE_OFFSET(0), HELENE_OFFSET(1), 0x00},
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_6, HELENE_OFFSET(3), HELENE_OFFSET(1), 0x00},
/**< SONY_HELENE_ATV_MN_A2 (System-M (Korea)) */
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_7, HELENE_OFFSET(11), HELENE_OFFSET(5), 0x00},
/**< SONY_HELENE_ATV_BG (System-B/G) */
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_8, HELENE_OFFSET(2), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_ATV_I (System-I) */
{HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_8, HELENE_OFFSET(2), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_ATV_DK (System-D/K) */
{HELENE_AUTO, 0x03, 0x04, 0x0A, 0x04, 0x04, 0x04, 0x04, 0x00,
HELENE_BW_8, HELENE_OFFSET(2), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_ATV_L (System-L) */
{HELENE_AUTO, 0x03, 0x04, 0x0A, 0x04, 0x04, 0x04, 0x04, 0x00,
HELENE_BW_8, HELENE_OFFSET(-1), HELENE_OFFSET(4), 0x00},
/**< SONY_HELENE_ATV_L_DASH (System-L DASH) */
/* Digital */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x03, 0x03, 0x03, 0x00,
HELENE_BW_6, HELENE_OFFSET(-6), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_8VSB (ATSC 8VSB) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-6), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_QAM (US QAM) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-9), HELENE_OFFSET(-5), 0x00},
/**< SONY_HELENE_DTV_ISDBT_6 (ISDB-T 6MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_7, HELENE_OFFSET(-7), HELENE_OFFSET(-6), 0x00},
/**< SONY_HELENE_DTV_ISDBT_7 (ISDB-T 7MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_8, HELENE_OFFSET(-5), HELENE_OFFSET(-7), 0x00},
/**< SONY_HELENE_DTV_ISDBT_8 (ISDB-T 8MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_DVBT_5 (DVB-T 5MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_DVBT_6 (DVB-T 6MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_7, HELENE_OFFSET(-6), HELENE_OFFSET(-5), 0x00},
/**< SONY_HELENE_DTV_DVBT_7 (DVB-T 7MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_8, HELENE_OFFSET(-4), HELENE_OFFSET(-6), 0x00},
/**< SONY_HELENE_DTV_DVBT_8 (DVB-T 8MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_1_7, HELENE_OFFSET(-10), HELENE_OFFSET(-10), 0x00},
/**< SONY_HELENE_DTV_DVBT2_1_7 (DVB-T2 1.7MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_DVBT2_5 (DVB-T2 5MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_DVBT2_6 (DVB-T2 6MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_7, HELENE_OFFSET(-6), HELENE_OFFSET(-5), 0x00},
/**< SONY_HELENE_DTV_DVBT2_7 (DVB-T2 7MHzBW) */
{HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_8, HELENE_OFFSET(-4), HELENE_OFFSET(-6), 0x00},
/**< SONY_HELENE_DTV_DVBT2_8 (DVB-T2 8MHzBW) */
{HELENE_AUTO, 0x05, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_6, HELENE_OFFSET(-6), HELENE_OFFSET(-4), 0x00},
/**< SONY_HELENE_DTV_DVBC_6 (DVB-C 6MHzBW) */
{HELENE_AUTO, 0x05, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00,
HELENE_BW_8, HELENE_OFFSET(-2), HELENE_OFFSET(-3), 0x00},
/**< SONY_HELENE_DTV_DVBC_8 (DVB-C 8MHzBW) */
{HELENE_AUTO, 0x03, 0x09, 0x09, 0x09, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_6, HELENE_OFFSET(-6), HELENE_OFFSET(-2), 0x00},
/**< SONY_HELENE_DTV_DVBC2_6 (DVB-C2 6MHzBW) */
{HELENE_AUTO, 0x03, 0x09, 0x09, 0x09, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_8, HELENE_OFFSET(-2), HELENE_OFFSET(0), 0x00},
/**< SONY_HELENE_DTV_DVBC2_8 (DVB-C2 8MHzBW) */
{HELENE_AUTO, 0x04, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
HELENE_BW_8, HELENE_OFFSET(2), HELENE_OFFSET(1), 0x00}
/**< SONY_HELENE_DTV_DTMB (DTMB) */
};
static void helene_i2c_debug(struct helene_priv *priv,
u8 reg, u8 write, const u8 *data, u32 len)
{
dev_dbg(&priv->i2c->dev, "helene: I2C %s reg 0x%02x size %d\n",
(write == 0 ? "read" : "write"), reg, len);
print_hex_dump_bytes("helene: I2C data: ",
DUMP_PREFIX_OFFSET, data, len);
}
static int helene_write_regs(struct helene_priv *priv,
u8 reg, const u8 *data, u32 len)
{
int ret;
u8 buf[MAX_WRITE_REGSIZE + 1];
struct i2c_msg msg[1] = {
{
.addr = priv->i2c_address,
.flags = 0,
.len = len + 1,
.buf = buf,
}
};
if (len + 1 > sizeof(buf)) {
dev_warn(&priv->i2c->dev,
"wr reg=%04x: len=%d vs %zu is too big!\n",
reg, len + 1, sizeof(buf));
return -E2BIG;
}
helene_i2c_debug(priv, reg, 1, data, len);
buf[0] = reg;
memcpy(&buf[1], data, len);
ret = i2c_transfer(priv->i2c, msg, 1);
if (ret >= 0 && ret != 1)
ret = -EREMOTEIO;
if (ret < 0) {
dev_warn(&priv->i2c->dev,
"%s: i2c wr failed=%d reg=%02x len=%d\n",
KBUILD_MODNAME, ret, reg, len);
return ret;
}
return 0;
}
static int helene_write_reg(struct helene_priv *priv, u8 reg, u8 val)
{
u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
return helene_write_regs(priv, reg, &tmp, 1);
}
static int helene_read_regs(struct helene_priv *priv,
u8 reg, u8 *val, u32 len)
{
int ret;
struct i2c_msg msg[2] = {
{
.addr = priv->i2c_address,
.flags = 0,
.len = 1,
.buf = &reg,
}, {
.addr = priv->i2c_address,
.flags = I2C_M_RD,
.len = len,
.buf = val,
}
};
ret = i2c_transfer(priv->i2c, &msg[0], 1);
if (ret >= 0 && ret != 1)
ret = -EREMOTEIO;
if (ret < 0) {
dev_warn(&priv->i2c->dev,
"%s: I2C rw failed=%d addr=%02x reg=%02x\n",
KBUILD_MODNAME, ret, priv->i2c_address, reg);
return ret;
}
ret = i2c_transfer(priv->i2c, &msg[1], 1);
if (ret >= 0 && ret != 1)
ret = -EREMOTEIO;
if (ret < 0) {
dev_warn(&priv->i2c->dev,
"%s: i2c rd failed=%d addr=%02x reg=%02x\n",
KBUILD_MODNAME, ret, priv->i2c_address, reg);
return ret;
}
helene_i2c_debug(priv, reg, 0, val, len);
return 0;
}
static int helene_read_reg(struct helene_priv *priv, u8 reg, u8 *val)
{
return helene_read_regs(priv, reg, val, 1);
}
static int helene_set_reg_bits(struct helene_priv *priv,
u8 reg, u8 data, u8 mask)
{
int res;
u8 rdata;
if (mask != 0xff) {
res = helene_read_reg(priv, reg, &rdata);
if (res != 0)
return res;
data = ((data & mask) | (rdata & (mask ^ 0xFF)));
}
return helene_write_reg(priv, reg, data);
}
static int helene_enter_power_save(struct helene_priv *priv)
{
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
if (priv->state == STATE_SLEEP)
return 0;
/* Standby setting for CPU */
helene_write_reg(priv, 0x88, 0x0);
/* Standby setting for internal logic block */
helene_write_reg(priv, 0x87, 0xC0);
priv->state = STATE_SLEEP;
return 0;
}
static int helene_leave_power_save(struct helene_priv *priv)
{
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
if (priv->state == STATE_ACTIVE)
return 0;
/* Standby setting for internal logic block */
helene_write_reg(priv, 0x87, 0xC4);
/* Standby setting for CPU */
helene_write_reg(priv, 0x88, 0x40);
priv->state = STATE_ACTIVE;
return 0;
}
static int helene_init(struct dvb_frontend *fe)
{
struct helene_priv *priv = fe->tuner_priv;
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
return helene_leave_power_save(priv);
}
static void helene_release(struct dvb_frontend *fe)
{
struct helene_priv *priv = fe->tuner_priv;
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
kfree(fe->tuner_priv);
fe->tuner_priv = NULL;
}
static int helene_sleep(struct dvb_frontend *fe)
{
struct helene_priv *priv = fe->tuner_priv;
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
helene_enter_power_save(priv);
return 0;
}
static enum helene_tv_system_t helene_get_tv_system(struct dvb_frontend *fe)
{
enum helene_tv_system_t system = SONY_HELENE_TV_SYSTEM_UNKNOWN;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct helene_priv *priv = fe->tuner_priv;
if (p->delivery_system == SYS_DVBT) {
if (p->bandwidth_hz <= 5000000)
system = SONY_HELENE_DTV_DVBT_5;
else if (p->bandwidth_hz <= 6000000)
system = SONY_HELENE_DTV_DVBT_6;
else if (p->bandwidth_hz <= 7000000)
system = SONY_HELENE_DTV_DVBT_7;
else if (p->bandwidth_hz <= 8000000)
system = SONY_HELENE_DTV_DVBT_8;
else {
system = SONY_HELENE_DTV_DVBT_8;
p->bandwidth_hz = 8000000;
}
} else if (p->delivery_system == SYS_DVBT2) {
if (p->bandwidth_hz <= 5000000)
system = SONY_HELENE_DTV_DVBT2_5;
else if (p->bandwidth_hz <= 6000000)
system = SONY_HELENE_DTV_DVBT2_6;
else if (p->bandwidth_hz <= 7000000)
system = SONY_HELENE_DTV_DVBT2_7;
else if (p->bandwidth_hz <= 8000000)
system = SONY_HELENE_DTV_DVBT2_8;
else {
system = SONY_HELENE_DTV_DVBT2_8;
p->bandwidth_hz = 8000000;
}
} else if (p->delivery_system == SYS_DVBS) {
system = SONY_HELENE_STV_DVBS;
} else if (p->delivery_system == SYS_DVBS2) {
system = SONY_HELENE_STV_DVBS2;
} else if (p->delivery_system == SYS_ISDBS) {
system = SONY_HELENE_STV_ISDBS;
} else if (p->delivery_system == SYS_ISDBT) {
if (p->bandwidth_hz <= 6000000)
system = SONY_HELENE_DTV_ISDBT_6;
else if (p->bandwidth_hz <= 7000000)
system = SONY_HELENE_DTV_ISDBT_7;
else if (p->bandwidth_hz <= 8000000)
system = SONY_HELENE_DTV_ISDBT_8;
else {
system = SONY_HELENE_DTV_ISDBT_8;
p->bandwidth_hz = 8000000;
}
} else if (p->delivery_system == SYS_DVBC_ANNEX_A) {
if (p->bandwidth_hz <= 6000000)
system = SONY_HELENE_DTV_DVBC_6;
else if (p->bandwidth_hz <= 8000000)
system = SONY_HELENE_DTV_DVBC_8;
}
dev_dbg(&priv->i2c->dev,
"%s(): HELENE DTV system %d (delsys %d, bandwidth %d)\n",
__func__, (int)system, p->delivery_system,
p->bandwidth_hz);
return system;
}
static int helene_set_params_s(struct dvb_frontend *fe)
{
u8 data[MAX_WRITE_REGSIZE];
u32 frequency;
enum helene_tv_system_t tv_system;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct helene_priv *priv = fe->tuner_priv;
int frequencykHz = p->frequency;
uint32_t frequency4kHz = 0;
u32 symbol_rate = p->symbol_rate/1000;
dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz sr=%uKsps\n",
__func__, frequencykHz, symbol_rate);
tv_system = helene_get_tv_system(fe);
if (tv_system == SONY_HELENE_TV_SYSTEM_UNKNOWN) {
dev_err(&priv->i2c->dev, "%s(): unknown DTV system\n",
__func__);
return -EINVAL;
}
/* RF switch turn to satellite */
if (priv->set_tuner)
priv->set_tuner(priv->set_tuner_data, 0);
frequency = roundup(p->frequency / 1000, 1);
/* Disable IF signal output */
helene_write_reg(priv, 0x15, 0x02);
/* RFIN matching in power save (Sat) reset */
helene_write_reg(priv, 0x43, 0x06);
/* Analog block setting (0x6A, 0x6B) */
data[0] = 0x00;
data[1] = 0x00;
helene_write_regs(priv, 0x6A, data, 2);
helene_write_reg(priv, 0x75, 0x99);
helene_write_reg(priv, 0x9D, 0x00);
/* Tuning setting for CPU (0x61) */
helene_write_reg(priv, 0x61, 0x07);
/* Satellite mode select (0x01) */
helene_write_reg(priv, 0x01, 0x01);
/* Clock enable for internal logic block, CPU wake-up (0x04, 0x05) */
data[0] = 0xC4;
data[1] = 0x40;
switch (priv->xtal) {
case SONY_HELENE_XTAL_16000:
data[2] = 0x02;
break;
case SONY_HELENE_XTAL_20500:
data[2] = 0x02;
break;
case SONY_HELENE_XTAL_24000:
data[2] = 0x03;
break;
case SONY_HELENE_XTAL_41000:
data[2] = 0x05;
break;
default:
dev_err(&priv->i2c->dev, "%s(): unknown xtal %d\n",
__func__, priv->xtal);
return -EINVAL;
}
/* Setting for analog block (0x07). LOOPFILTER INTERNAL */
data[3] = 0x80;
/* Tuning setting for analog block
* (0x08, 0x09, 0x0A, 0x0B). LOOPFILTER INTERNAL
*/
if (priv->xtal == SONY_HELENE_XTAL_20500)
data[4] = 0x58;
else
data[4] = 0x70;
data[5] = 0x1E;
data[6] = 0x02;
data[7] = 0x24;
/* Enable for analog block (0x0C, 0x0D, 0x0E). SAT LNA ON */
data[8] = 0x0F;
data[8] |= 0xE0; /* POWERSAVE_TERR_RF_ACTIVE */
data[9] = 0x02;
data[10] = 0x1E;
/* Setting for LPF cutoff frequency (0x0F) */
switch (tv_system) {
case SONY_HELENE_STV_ISDBS:
data[11] = 0x22; /* 22MHz */
break;
case SONY_HELENE_STV_DVBS:
if (symbol_rate <= 4000)
data[11] = 0x05;
else if (symbol_rate <= 10000)
data[11] = (uint8_t)((symbol_rate * 47
+ (40000-1)) / 40000);
else
data[11] = (uint8_t)((symbol_rate * 27
+ (40000-1)) / 40000 + 5);
if (data[11] > 36)
data[11] = 36; /* 5 <= lpf_cutoff <= 36 is valid */
break;
case SONY_HELENE_STV_DVBS2:
if (symbol_rate <= 4000)
data[11] = 0x05;
else if (symbol_rate <= 10000)
data[11] = (uint8_t)((symbol_rate * 11
+ (10000-1)) / 10000);
else
data[11] = (uint8_t)((symbol_rate * 3
+ (5000-1)) / 5000 + 5);
if (data[11] > 36)
data[11] = 36; /* 5 <= lpf_cutoff <= 36 is valid */
break;
default:
dev_err(&priv->i2c->dev, "%s(): unknown standard %d\n",
__func__, tv_system);
return -EINVAL;
}
/* RF tuning frequency setting (0x10, 0x11, 0x12) */
frequency4kHz = (frequencykHz + 2) / 4;
data[12] = (uint8_t)(frequency4kHz & 0xFF); /* FRF_L */
data[13] = (uint8_t)((frequency4kHz >> 8) & 0xFF); /* FRF_M */
/* FRF_H (bit[3:0]) */
data[14] = (uint8_t)((frequency4kHz >> 16) & 0x0F);
/* Tuning command (0x13) */
data[15] = 0xFF;
/* Setting for IQOUT_LIMIT (0x14) 0.75Vpp */
data[16] = 0x00;
/* Enable IQ output (0x15) */
data[17] = 0x01;
helene_write_regs(priv, 0x04, data, 18);
dev_dbg(&priv->i2c->dev, "%s(): tune done\n",
__func__);
priv->frequency = frequency;
return 0;
}
static int helene_set_params_t(struct dvb_frontend *fe)
{
u8 data[MAX_WRITE_REGSIZE];
u32 frequency;
enum helene_tv_system_t tv_system;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct helene_priv *priv = fe->tuner_priv;
int frequencykHz = p->frequency / 1000;
dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz\n",
__func__, frequencykHz);
tv_system = helene_get_tv_system(fe);
if (tv_system == SONY_HELENE_TV_SYSTEM_UNKNOWN) {
dev_dbg(&priv->i2c->dev, "%s(): unknown DTV system\n",
__func__);
return -EINVAL;
}
if (priv->set_tuner)
priv->set_tuner(priv->set_tuner_data, 1);
frequency = roundup(p->frequency / 1000, 25);
/* mode select */
helene_write_reg(priv, 0x01, 0x00);
/* Disable IF signal output */
helene_write_reg(priv, 0x74, 0x02);
if (priv->state == STATE_SLEEP)
helene_leave_power_save(priv);
/* Initial setting for internal analog block (0x91, 0x92) */
if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
(tv_system == SONY_HELENE_DTV_DVBC_8)) {
data[0] = 0x16;
data[1] = 0x26;
} else {
data[0] = 0x10;
data[1] = 0x20;
}
helene_write_regs(priv, 0x91, data, 2);
/* Setting for analog block */
if (TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system))
data[0] = 0x90;
else
data[0] = 0x00;
/* Setting for local polarity (0x9D) */
data[1] = (uint8_t)(terr_params[tv_system].IS_LOWERLOCAL & 0x01);
helene_write_regs(priv, 0x9C, data, 2);
/* Enable for analog block */
data[0] = 0xEE;
data[1] = 0x02;
data[2] = 0x1E;
data[3] = 0x67; /* Tuning setting for CPU */
/* Setting for PLL reference divider for xtal=24MHz */
if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
(tv_system == SONY_HELENE_DTV_DVBC_8))
data[4] = 0x18;
else
data[4] = 0x03;
/* Tuning setting for analog block */
if (TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system)) {
data[5] = 0x38;
data[6] = 0x1E;
data[7] = 0x02;
data[8] = 0x24;
} else if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
(tv_system == SONY_HELENE_DTV_DVBC_8)) {
data[5] = 0x1C;
data[6] = 0x78;
data[7] = 0x08;
data[8] = 0x1C;
} else {
data[5] = 0xB4;
data[6] = 0x78;
data[7] = 0x08;
data[8] = 0x30;
}
helene_write_regs(priv, 0x5E, data, 9);
/* LT_AMP_EN should be 0 */
helene_set_reg_bits(priv, 0x67, 0x0, 0x02);
/* Setting for IFOUT_LIMIT */
data[0] = 0x00; /* 1.5Vpp */
/* RF_GAIN setting */
if (terr_params[tv_system].RF_GAIN == HELENE_AUTO)
data[1] = 0x80; /* RF_GAIN_SEL = 1 */
else
data[1] = (uint8_t)((terr_params[tv_system].RF_GAIN
<< 4) & 0x70);
/* IF_BPF_GC setting */
data[1] |= (uint8_t)(terr_params[tv_system].IF_BPF_GC & 0x0F);
/* Setting for internal RFAGC (0x6A, 0x6B, 0x6C) */
data[2] = 0x00;
if (frequencykHz <= 172000) {
data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_VL
& 0x0F);
data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_VL
& 0x07);
} else if (frequencykHz <= 464000) {
data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_VH
& 0x0F);
data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_VH
& 0x07);
} else {
data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_U
& 0x0F);
data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_U
& 0x07);
}
data[4] |= 0x20;
/* Setting for IF frequency and bandwidth */
/* IF filter center frequency offset (IF_BPF_F0) (0x6D) */
data[5] = (uint8_t)((terr_params[tv_system].IF_BPF_F0 << 4) & 0x30);
/* IF filter band width (BW) (0x6D) */
data[5] |= (uint8_t)(terr_params[tv_system].BW & 0x03);
/* IF frequency offset value (FIF_OFFSET) (0x6E) */
data[6] = (uint8_t)(terr_params[tv_system].FIF_OFFSET & 0x1F);
/* IF band width offset value (BW_OFFSET) (0x6F) */
data[7] = (uint8_t)(terr_params[tv_system].BW_OFFSET & 0x1F);
/* RF tuning frequency setting (0x70, 0x71, 0x72) */
data[8] = (uint8_t)(frequencykHz & 0xFF); /* FRF_L */
data[9] = (uint8_t)((frequencykHz >> 8) & 0xFF); /* FRF_M */
data[10] = (uint8_t)((frequencykHz >> 16)
& 0x0F); /* FRF_H (bit[3:0]) */
/* Tuning command */
data[11] = 0xFF;
/* Enable IF output, AGC and IFOUT pin selection (0x74) */
data[12] = 0x01;
if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
(tv_system == SONY_HELENE_DTV_DVBC_8)) {
data[13] = 0xD9;
data[14] = 0x0F;
data[15] = 0x24;
data[16] = 0x87;
} else {
data[13] = 0x99;
data[14] = 0x00;
data[15] = 0x24;
data[16] = 0x87;
}
helene_write_regs(priv, 0x68, data, 17);
dev_dbg(&priv->i2c->dev, "%s(): tune done\n",
__func__);
priv->frequency = frequency;
return 0;
}
static int helene_set_params(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
if (p->delivery_system == SYS_DVBT ||
p->delivery_system == SYS_DVBT2 ||
p->delivery_system == SYS_ISDBT ||
p->delivery_system == SYS_DVBC_ANNEX_A)
return helene_set_params_t(fe);
return helene_set_params_s(fe);
}
static int helene_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct helene_priv *priv = fe->tuner_priv;
*frequency = priv->frequency * 1000;
return 0;
}
static const struct dvb_tuner_ops helene_tuner_ops_t = {
.info = {
.name = "Sony HELENE Ter tuner",
.frequency_min_hz = 1 * MHz,
.frequency_max_hz = 1200 * MHz,
.frequency_step_hz = 25 * kHz,
},
.init = helene_init,
.release = helene_release,
.sleep = helene_sleep,
.set_params = helene_set_params_t,
.get_frequency = helene_get_frequency,
};
static const struct dvb_tuner_ops helene_tuner_ops_s = {
.info = {
.name = "Sony HELENE Sat tuner",
.frequency_min_hz = 500 * MHz,
.frequency_max_hz = 2500 * MHz,
.frequency_step_hz = 1 * MHz,
},
.init = helene_init,
.release = helene_release,
.sleep = helene_sleep,
.set_params = helene_set_params_s,
.get_frequency = helene_get_frequency,
};
static const struct dvb_tuner_ops helene_tuner_ops = {
.info = {
.name = "Sony HELENE Sat/Ter tuner",
.frequency_min_hz = 1 * MHz,
.frequency_max_hz = 2500 * MHz,
.frequency_step_hz = 25 * kHz,
},
.init = helene_init,
.release = helene_release,
.sleep = helene_sleep,
.set_params = helene_set_params,
.get_frequency = helene_get_frequency,
};
/* power-on tuner
* call once after reset
*/
static int helene_x_pon(struct helene_priv *priv)
{
/* RFIN matching in power save (terrestrial) = ACTIVE */
/* RFIN matching in power save (satellite) = ACTIVE */
u8 dataT[] = { 0x06, 0x00, 0x02, 0x00 };
/* SAT_RF_ACTIVE = true, lnaOff = false, terrRfActive = true */
u8 dataS[] = { 0x05, 0x06 };
u8 cdata[] = {0x7A, 0x01};
u8 data[20];
u8 rdata[2];
/* mode select */
helene_write_reg(priv, 0x01, 0x00);
helene_write_reg(priv, 0x67, dataT[3]);
helene_write_reg(priv, 0x43, dataS[1]);
helene_write_regs(priv, 0x5E, dataT, 3);
helene_write_reg(priv, 0x0C, dataS[0]);
/* Initial setting for internal logic block */
helene_write_regs(priv, 0x99, cdata, sizeof(cdata));
/* 0x81 - 0x94 */
if (priv->xtal == SONY_HELENE_XTAL_16000)
data[0] = 0x10; /* xtal 16 MHz */
else
data[0] = 0x18; /* xtal 24 MHz */
data[1] = (uint8_t)(0x80 | (0x04 & 0x1F)); /* 4 x 25 = 100uA */
data[2] = (uint8_t)(0x80 | (0x26 & 0x7F)); /* 38 x 0.25 = 9.5pF */
data[3] = 0x80; /* REFOUT signal output 500mVpp */
data[4] = 0x00; /* GPIO settings */
data[5] = 0x00; /* GPIO settings */
data[6] = 0xC4; /* Clock enable for internal logic block */
data[7] = 0x40; /* Start CPU boot-up */
data[8] = 0x10; /* For burst-write */
/* Setting for internal RFAGC */
data[9] = 0x00;
data[10] = 0x45;
data[11] = 0x75;
data[12] = 0x07; /* Setting for analog block */
/* Initial setting for internal analog block */
data[13] = 0x1C;
data[14] = 0x3F;
data[15] = 0x02;
data[16] = 0x10;
data[17] = 0x20;
data[18] = 0x0A;
data[19] = 0x00;
helene_write_regs(priv, 0x81, data, sizeof(data));
/* Setting for internal RFAGC */
helene_write_reg(priv, 0x9B, 0x00);
msleep(20);
/* Check CPU_STT/CPU_ERR */
helene_read_regs(priv, 0x1A, rdata, sizeof(rdata));
if (rdata[0] != 0x00) {
dev_err(&priv->i2c->dev,
"HELENE tuner CPU error 0x%x\n", rdata[0]);
return -EIO;
}
/* VCO current setting */
cdata[0] = 0x90;
cdata[1] = 0x06;
helene_write_regs(priv, 0x17, cdata, sizeof(cdata));
msleep(20);
helene_read_reg(priv, 0x19, data);
helene_write_reg(priv, 0x95, (uint8_t)((data[0] >> 4) & 0x0F));
/* Disable IF signal output */
helene_write_reg(priv, 0x74, 0x02);
/* Standby setting for CPU */
helene_write_reg(priv, 0x88, 0x00);
/* Standby setting for internal logic block */
helene_write_reg(priv, 0x87, 0xC0);
/* Load capacitance control setting for crystal oscillator */
helene_write_reg(priv, 0x80, 0x01);
/* Satellite initial setting */
cdata[0] = 0x07;
cdata[1] = 0x00;
helene_write_regs(priv, 0x41, cdata, sizeof(cdata));
dev_info(&priv->i2c->dev,
"HELENE tuner x_pon done\n");
return 0;
}
struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
const struct helene_config *config,
struct i2c_adapter *i2c)
{
struct helene_priv *priv = NULL;
priv = kzalloc(sizeof(struct helene_priv), GFP_KERNEL);
if (priv == NULL)
return NULL;
priv->i2c_address = (config->i2c_address >> 1);
priv->i2c = i2c;
priv->set_tuner_data = config->set_tuner_priv;
priv->set_tuner = config->set_tuner_callback;
priv->xtal = config->xtal;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
if (helene_x_pon(priv) != 0) {
kfree(priv);
return NULL;
}
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops_s,
sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
dev_info(&priv->i2c->dev,
"Sony HELENE Sat attached on addr=%x at I2C adapter %p\n",
priv->i2c_address, priv->i2c);
return fe;
}
EXPORT_SYMBOL(helene_attach_s);
struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
const struct helene_config *config,
struct i2c_adapter *i2c)
{
struct helene_priv *priv = NULL;
priv = kzalloc(sizeof(struct helene_priv), GFP_KERNEL);
if (priv == NULL)
return NULL;
priv->i2c_address = (config->i2c_address >> 1);
priv->i2c = i2c;
priv->set_tuner_data = config->set_tuner_priv;
priv->set_tuner = config->set_tuner_callback;
priv->xtal = config->xtal;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
if (helene_x_pon(priv) != 0) {
kfree(priv);
return NULL;
}
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops_t,
sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
dev_info(&priv->i2c->dev,
"Sony HELENE Ter attached on addr=%x at I2C adapter %p\n",
priv->i2c_address, priv->i2c);
return fe;
}
EXPORT_SYMBOL(helene_attach);
static int helene_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct helene_config *config = client->dev.platform_data;
struct dvb_frontend *fe = config->fe;
struct device *dev = &client->dev;
struct helene_priv *priv;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->i2c_address = client->addr;
priv->i2c = client->adapter;
priv->set_tuner_data = config->set_tuner_priv;
priv->set_tuner = config->set_tuner_callback;
priv->xtal = config->xtal;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
if (helene_x_pon(priv) != 0)
return -EINVAL;
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
memcpy(&fe->ops.tuner_ops, &helene_tuner_ops,
sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
i2c_set_clientdata(client, priv);
dev_info(dev, "Sony HELENE attached on addr=%x at I2C adapter %p\n",
priv->i2c_address, priv->i2c);
return 0;
}
static const struct i2c_device_id helene_id[] = {
{ "helene", },
{}
};
MODULE_DEVICE_TABLE(i2c, helene_id);
static struct i2c_driver helene_driver = {
.driver = {
.name = "helene",
},
.probe = helene_probe,
.id_table = helene_id,
};
module_i2c_driver(helene_driver);
MODULE_DESCRIPTION("Sony HELENE Sat/Ter tuner driver");
MODULE_AUTHOR("Abylay Ospan <aospan@netup.ru>");
MODULE_LICENSE("GPL");