drivers/media/dvb-frontends/helene.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
helene_i2c_debug
helene_write_regs
helene_write_reg
helene_read_regs
helene_read_reg
helene_set_reg_bits
helene_enter_power_save
helene_leave_power_save
helene_init
helene_release
helene_sleep
helene_get_tv_system
helene_set_params_s
helene_set_params_t
helene_set_params
helene_get_frequency
helene_x_pon
helene_attach_s
helene_attach
helene_probe
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * helene.c
   4  *
   5  * Sony HELENE DVB-S/S2 DVB-T/T2 DVB-C/C2 ISDB-T/S tuner driver (CXD2858ER)
   6  *
   7  * Copyright 2012 Sony Corporation
   8  * Copyright (C) 2014 NetUP Inc.
   9  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
  10   */
  11 
  12 #include <linux/slab.h>
  13 #include <linux/module.h>
  14 #include <linux/dvb/frontend.h>
  15 #include <linux/types.h>
  16 #include "helene.h"
  17 #include <media/dvb_frontend.h>
  18 
  19 #define MAX_WRITE_REGSIZE 20
  20 
  21 enum helene_state {
  22         STATE_UNKNOWN,
  23         STATE_SLEEP,
  24         STATE_ACTIVE
  25 };
  26 
  27 struct helene_priv {
  28         u32                     frequency;
  29         u8                      i2c_address;
  30         struct i2c_adapter      *i2c;
  31         enum helene_state       state;
  32         void                    *set_tuner_data;
  33         int                     (*set_tuner)(void *, int);
  34         enum helene_xtal xtal;
  35 };
  36 
  37 #define TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system) \
  38         (((tv_system) != SONY_HELENE_DTV_DVBC_6) && \
  39          ((tv_system) != SONY_HELENE_DTV_DVBC_8)\
  40          && ((tv_system) != SONY_HELENE_DTV_DVBC2_6) && \
  41          ((tv_system) != SONY_HELENE_DTV_DVBC2_8))
  42 
  43 #define HELENE_AUTO             0xff
  44 #define HELENE_OFFSET(ofs)      ((u8)(ofs) & 0x1F)
  45 #define HELENE_BW_6             0x00
  46 #define HELENE_BW_7             0x01
  47 #define HELENE_BW_8             0x02
  48 #define HELENE_BW_1_7           0x03
  49 
  50 enum helene_tv_system_t {
  51         SONY_HELENE_TV_SYSTEM_UNKNOWN,
  52         /* Terrestrial Analog */
  53         SONY_HELENE_ATV_MN_EIAJ,
  54         /**< System-M (Japan) (IF: Fp=5.75MHz in default) */
  55         SONY_HELENE_ATV_MN_SAP,
  56         /**< System-M (US)    (IF: Fp=5.75MHz in default) */
  57         SONY_HELENE_ATV_MN_A2,
  58         /**< System-M (Korea) (IF: Fp=5.9MHz in default) */
  59         SONY_HELENE_ATV_BG,
  60         /**< System-B/G       (IF: Fp=7.3MHz in default) */
  61         SONY_HELENE_ATV_I,
  62         /**< System-I         (IF: Fp=7.85MHz in default) */
  63         SONY_HELENE_ATV_DK,
  64         /**< System-D/K       (IF: Fp=7.85MHz in default) */
  65         SONY_HELENE_ATV_L,
  66         /**< System-L         (IF: Fp=7.85MHz in default) */
  67         SONY_HELENE_ATV_L_DASH,
  68         /**< System-L DASH    (IF: Fp=2.2MHz in default) */
  69         /* Terrestrial/Cable Digital */
  70         SONY_HELENE_DTV_8VSB,
  71         /**< ATSC 8VSB        (IF: Fc=3.7MHz in default) */
  72         SONY_HELENE_DTV_QAM,
  73         /**< US QAM           (IF: Fc=3.7MHz in default) */
  74         SONY_HELENE_DTV_ISDBT_6,
  75         /**< ISDB-T 6MHzBW    (IF: Fc=3.55MHz in default) */
  76         SONY_HELENE_DTV_ISDBT_7,
  77         /**< ISDB-T 7MHzBW    (IF: Fc=4.15MHz in default) */
  78         SONY_HELENE_DTV_ISDBT_8,
  79         /**< ISDB-T 8MHzBW    (IF: Fc=4.75MHz in default) */
  80         SONY_HELENE_DTV_DVBT_5,
  81         /**< DVB-T 5MHzBW     (IF: Fc=3.6MHz in default) */
  82         SONY_HELENE_DTV_DVBT_6,
  83         /**< DVB-T 6MHzBW     (IF: Fc=3.6MHz in default) */
  84         SONY_HELENE_DTV_DVBT_7,
  85         /**< DVB-T 7MHzBW     (IF: Fc=4.2MHz in default) */
  86         SONY_HELENE_DTV_DVBT_8,
  87         /**< DVB-T 8MHzBW     (IF: Fc=4.8MHz in default) */
  88         SONY_HELENE_DTV_DVBT2_1_7,
  89         /**< DVB-T2 1.7MHzBW  (IF: Fc=3.5MHz in default) */
  90         SONY_HELENE_DTV_DVBT2_5,
  91         /**< DVB-T2 5MHzBW    (IF: Fc=3.6MHz in default) */
  92         SONY_HELENE_DTV_DVBT2_6,
  93         /**< DVB-T2 6MHzBW    (IF: Fc=3.6MHz in default) */
  94         SONY_HELENE_DTV_DVBT2_7,
  95         /**< DVB-T2 7MHzBW    (IF: Fc=4.2MHz in default) */
  96         SONY_HELENE_DTV_DVBT2_8,
  97         /**< DVB-T2 8MHzBW    (IF: Fc=4.8MHz in default) */
  98         SONY_HELENE_DTV_DVBC_6,
  99         /**< DVB-C 6MHzBW     (IF: Fc=3.7MHz in default) */
 100         SONY_HELENE_DTV_DVBC_8,
 101         /**< DVB-C 8MHzBW     (IF: Fc=4.9MHz in default) */
 102         SONY_HELENE_DTV_DVBC2_6,
 103         /**< DVB-C2 6MHzBW    (IF: Fc=3.7MHz in default) */
 104         SONY_HELENE_DTV_DVBC2_8,
 105         /**< DVB-C2 8MHzBW    (IF: Fc=4.9MHz in default) */
 106         SONY_HELENE_DTV_DTMB,
 107         /**< DTMB             (IF: Fc=5.1MHz in default) */
 108         /* Satellite */
 109         SONY_HELENE_STV_ISDBS,
 110         /**< ISDB-S */
 111         SONY_HELENE_STV_DVBS,
 112         /**< DVB-S */
 113         SONY_HELENE_STV_DVBS2,
 114         /**< DVB-S2 */
 115 
 116         SONY_HELENE_ATV_MIN = SONY_HELENE_ATV_MN_EIAJ,
 117         /**< Minimum analog terrestrial system */
 118         SONY_HELENE_ATV_MAX = SONY_HELENE_ATV_L_DASH,
 119         /**< Maximum analog terrestrial system */
 120         SONY_HELENE_DTV_MIN = SONY_HELENE_DTV_8VSB,
 121         /**< Minimum digital terrestrial system */
 122         SONY_HELENE_DTV_MAX = SONY_HELENE_DTV_DTMB,
 123         /**< Maximum digital terrestrial system */
 124         SONY_HELENE_TERR_TV_SYSTEM_NUM,
 125         /**< Number of supported terrestrial broadcasting system */
 126         SONY_HELENE_STV_MIN = SONY_HELENE_STV_ISDBS,
 127         /**< Minimum satellite system */
 128         SONY_HELENE_STV_MAX = SONY_HELENE_STV_DVBS2
 129         /**< Maximum satellite system */
 130 };
 131 
 132 struct helene_terr_adjust_param_t {
 133         /* < Addr:0x69 Bit[6:4] : RFVGA gain.
 134          * 0xFF means Auto. (RF_GAIN_SEL = 1)
 135          */
 136         uint8_t RF_GAIN;
 137         /* < Addr:0x69 Bit[3:0] : IF_BPF gain.
 138         */
 139         uint8_t IF_BPF_GC;
 140         /* < Addr:0x6B Bit[3:0] : RF overload
 141          * RF input detect level. (FRF <= 172MHz)
 142         */
 143         uint8_t RFOVLD_DET_LV1_VL;
 144         /* < Addr:0x6B Bit[3:0] : RF overload
 145          * RF input detect level. (172MHz < FRF <= 464MHz)
 146         */
 147         uint8_t RFOVLD_DET_LV1_VH;
 148         /* < Addr:0x6B Bit[3:0] : RF overload
 149          * RF input detect level. (FRF > 464MHz)
 150         */
 151         uint8_t RFOVLD_DET_LV1_U;
 152         /* < Addr:0x6C Bit[2:0] :
 153          * Internal RFAGC detect level. (FRF <= 172MHz)
 154         */
 155         uint8_t IFOVLD_DET_LV_VL;
 156         /* < Addr:0x6C Bit[2:0] :
 157          * Internal RFAGC detect level. (172MHz < FRF <= 464MHz)
 158         */
 159         uint8_t IFOVLD_DET_LV_VH;
 160         /* < Addr:0x6C Bit[2:0] :
 161          * Internal RFAGC detect level. (FRF > 464MHz)
 162         */
 163         uint8_t IFOVLD_DET_LV_U;
 164         /* < Addr:0x6D Bit[5:4] :
 165          * IF filter center offset.
 166         */
 167         uint8_t IF_BPF_F0;
 168         /* < Addr:0x6D Bit[1:0] :
 169          * 6MHzBW(0x00) or 7MHzBW(0x01)
 170          * or 8MHzBW(0x02) or 1.7MHzBW(0x03)
 171         */
 172         uint8_t BW;
 173         /* < Addr:0x6E Bit[4:0] :
 174          * 5bit signed. IF offset (kHz) = FIF_OFFSET x 50
 175         */
 176         uint8_t FIF_OFFSET;
 177         /* < Addr:0x6F Bit[4:0] :
 178          * 5bit signed. BW offset (kHz) =
 179          * BW_OFFSET x 50 (BW_OFFSET x 10 in 1.7MHzBW)
 180         */
 181         uint8_t BW_OFFSET;
 182         /* < Addr:0x9C Bit[0]   :
 183          * Local polarity. (0: Upper Local, 1: Lower Local)
 184         */
 185         uint8_t IS_LOWERLOCAL;
 186 };
 187 
 188 static const struct helene_terr_adjust_param_t
 189 terr_params[SONY_HELENE_TERR_TV_SYSTEM_NUM] = {
 190         /*< SONY_HELENE_TV_SYSTEM_UNKNOWN */
 191         {HELENE_AUTO, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 192                 HELENE_BW_6, HELENE_OFFSET(0),  HELENE_OFFSET(0),  0x00},
 193         /* Analog */
 194         /**< SONY_HELENE_ATV_MN_EIAJ   (System-M (Japan)) */
 195         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 196                 HELENE_BW_6,  HELENE_OFFSET(0),  HELENE_OFFSET(1),  0x00},
 197         /**< SONY_HELENE_ATV_MN_SAP    (System-M (US)) */
 198         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 199                 HELENE_BW_6,  HELENE_OFFSET(0),  HELENE_OFFSET(1),  0x00},
 200         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 201                 HELENE_BW_6,  HELENE_OFFSET(3),  HELENE_OFFSET(1),  0x00},
 202         /**< SONY_HELENE_ATV_MN_A2     (System-M (Korea)) */
 203         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 204                 HELENE_BW_7,  HELENE_OFFSET(11), HELENE_OFFSET(5),  0x00},
 205         /**< SONY_HELENE_ATV_BG        (System-B/G) */
 206         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 207                 HELENE_BW_8,  HELENE_OFFSET(2),  HELENE_OFFSET(-3), 0x00},
 208         /**< SONY_HELENE_ATV_I         (System-I) */
 209         {HELENE_AUTO, 0x05, 0x03, 0x06, 0x03, 0x01, 0x01, 0x01, 0x00,
 210                 HELENE_BW_8,  HELENE_OFFSET(2),  HELENE_OFFSET(-3), 0x00},
 211         /**< SONY_HELENE_ATV_DK        (System-D/K) */
 212         {HELENE_AUTO, 0x03, 0x04, 0x0A, 0x04, 0x04, 0x04, 0x04, 0x00,
 213                 HELENE_BW_8,  HELENE_OFFSET(2),  HELENE_OFFSET(-3), 0x00},
 214         /**< SONY_HELENE_ATV_L         (System-L) */
 215         {HELENE_AUTO, 0x03, 0x04, 0x0A, 0x04, 0x04, 0x04, 0x04, 0x00,
 216                 HELENE_BW_8,  HELENE_OFFSET(-1), HELENE_OFFSET(4),  0x00},
 217         /**< SONY_HELENE_ATV_L_DASH    (System-L DASH) */
 218         /* Digital */
 219         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x03, 0x03, 0x03, 0x00,
 220                 HELENE_BW_6,  HELENE_OFFSET(-6), HELENE_OFFSET(-3), 0x00},
 221         /**< SONY_HELENE_DTV_8VSB      (ATSC 8VSB) */
 222         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 223                 HELENE_BW_6,  HELENE_OFFSET(-6), HELENE_OFFSET(-3), 0x00},
 224         /**< SONY_HELENE_DTV_QAM       (US QAM) */
 225         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 226                 HELENE_BW_6,  HELENE_OFFSET(-9), HELENE_OFFSET(-5), 0x00},
 227         /**< SONY_HELENE_DTV_ISDBT_6   (ISDB-T 6MHzBW) */
 228         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 229                 HELENE_BW_7,  HELENE_OFFSET(-7), HELENE_OFFSET(-6), 0x00},
 230         /**< SONY_HELENE_DTV_ISDBT_7   (ISDB-T 7MHzBW) */
 231         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 232                 HELENE_BW_8,  HELENE_OFFSET(-5), HELENE_OFFSET(-7), 0x00},
 233         /**< SONY_HELENE_DTV_ISDBT_8   (ISDB-T 8MHzBW) */
 234         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 235                 HELENE_BW_6,  HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
 236         /**< SONY_HELENE_DTV_DVBT_5    (DVB-T 5MHzBW) */
 237         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 238                 HELENE_BW_6,  HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
 239         /**< SONY_HELENE_DTV_DVBT_6    (DVB-T 6MHzBW) */
 240         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 241                 HELENE_BW_7,  HELENE_OFFSET(-6), HELENE_OFFSET(-5), 0x00},
 242         /**< SONY_HELENE_DTV_DVBT_7    (DVB-T 7MHzBW) */
 243         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 244                 HELENE_BW_8,  HELENE_OFFSET(-4), HELENE_OFFSET(-6), 0x00},
 245         /**< SONY_HELENE_DTV_DVBT_8    (DVB-T 8MHzBW) */
 246         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 247                 HELENE_BW_1_7, HELENE_OFFSET(-10), HELENE_OFFSET(-10), 0x00},
 248         /**< SONY_HELENE_DTV_DVBT2_1_7 (DVB-T2 1.7MHzBW) */
 249         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 250                 HELENE_BW_6,  HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
 251         /**< SONY_HELENE_DTV_DVBT2_5   (DVB-T2 5MHzBW) */
 252         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 253                 HELENE_BW_6,  HELENE_OFFSET(-8), HELENE_OFFSET(-3), 0x00},
 254         /**< SONY_HELENE_DTV_DVBT2_6   (DVB-T2 6MHzBW) */
 255         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 256                 HELENE_BW_7,  HELENE_OFFSET(-6), HELENE_OFFSET(-5), 0x00},
 257         /**< SONY_HELENE_DTV_DVBT2_7   (DVB-T2 7MHzBW) */
 258         {HELENE_AUTO, 0x09, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 259                 HELENE_BW_8,  HELENE_OFFSET(-4), HELENE_OFFSET(-6), 0x00},
 260         /**< SONY_HELENE_DTV_DVBT2_8   (DVB-T2 8MHzBW) */
 261         {HELENE_AUTO, 0x05, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00,
 262                 HELENE_BW_6,  HELENE_OFFSET(-6), HELENE_OFFSET(-4), 0x00},
 263         /**< SONY_HELENE_DTV_DVBC_6    (DVB-C 6MHzBW) */
 264         {HELENE_AUTO, 0x05, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00,
 265                 HELENE_BW_8,  HELENE_OFFSET(-2), HELENE_OFFSET(-3), 0x00},
 266         /**< SONY_HELENE_DTV_DVBC_8    (DVB-C 8MHzBW) */
 267         {HELENE_AUTO, 0x03, 0x09, 0x09, 0x09, 0x02, 0x02, 0x02, 0x00,
 268                 HELENE_BW_6,  HELENE_OFFSET(-6), HELENE_OFFSET(-2), 0x00},
 269         /**< SONY_HELENE_DTV_DVBC2_6   (DVB-C2 6MHzBW) */
 270         {HELENE_AUTO, 0x03, 0x09, 0x09, 0x09, 0x02, 0x02, 0x02, 0x00,
 271                 HELENE_BW_8,  HELENE_OFFSET(-2), HELENE_OFFSET(0),  0x00},
 272         /**< SONY_HELENE_DTV_DVBC2_8   (DVB-C2 8MHzBW) */
 273         {HELENE_AUTO, 0x04, 0x0B, 0x0B, 0x0B, 0x02, 0x02, 0x02, 0x00,
 274                 HELENE_BW_8,  HELENE_OFFSET(2),  HELENE_OFFSET(1),  0x00}
 275         /**< SONY_HELENE_DTV_DTMB      (DTMB) */
 276 };
 277 
 278 static void helene_i2c_debug(struct helene_priv *priv,
 279                 u8 reg, u8 write, const u8 *data, u32 len)
 280 {
 281         dev_dbg(&priv->i2c->dev, "helene: I2C %s reg 0x%02x size %d\n",
 282                         (write == 0 ? "read" : "write"), reg, len);
 283         print_hex_dump_bytes("helene: I2C data: ",
 284                         DUMP_PREFIX_OFFSET, data, len);
 285 }
 286 
 287 static int helene_write_regs(struct helene_priv *priv,
 288                 u8 reg, const u8 *data, u32 len)
 289 {
 290         int ret;
 291         u8 buf[MAX_WRITE_REGSIZE + 1];
 292         struct i2c_msg msg[1] = {
 293                 {
 294                         .addr = priv->i2c_address,
 295                         .flags = 0,
 296                         .len = len + 1,
 297                         .buf = buf,
 298                 }
 299         };
 300 
 301         if (len + 1 > sizeof(buf)) {
 302                 dev_warn(&priv->i2c->dev,
 303                                 "wr reg=%04x: len=%d vs %zu is too big!\n",
 304                                 reg, len + 1, sizeof(buf));
 305                 return -E2BIG;
 306         }
 307 
 308         helene_i2c_debug(priv, reg, 1, data, len);
 309         buf[0] = reg;
 310         memcpy(&buf[1], data, len);
 311         ret = i2c_transfer(priv->i2c, msg, 1);
 312         if (ret >= 0 && ret != 1)
 313                 ret = -EREMOTEIO;
 314         if (ret < 0) {
 315                 dev_warn(&priv->i2c->dev,
 316                                 "%s: i2c wr failed=%d reg=%02x len=%d\n",
 317                                 KBUILD_MODNAME, ret, reg, len);
 318                 return ret;
 319         }
 320         return 0;
 321 }
 322 
 323 static int helene_write_reg(struct helene_priv *priv, u8 reg, u8 val)
 324 {
 325         u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
 326 
 327         return helene_write_regs(priv, reg, &tmp, 1);
 328 }
 329 
 330 static int helene_read_regs(struct helene_priv *priv,
 331                 u8 reg, u8 *val, u32 len)
 332 {
 333         int ret;
 334         struct i2c_msg msg[2] = {
 335                 {
 336                         .addr = priv->i2c_address,
 337                         .flags = 0,
 338                         .len = 1,
 339                         .buf = &reg,
 340                 }, {
 341                         .addr = priv->i2c_address,
 342                         .flags = I2C_M_RD,
 343                         .len = len,
 344                         .buf = val,
 345                 }
 346         };
 347 
 348         ret = i2c_transfer(priv->i2c, &msg[0], 1);
 349         if (ret >= 0 && ret != 1)
 350                 ret = -EREMOTEIO;
 351         if (ret < 0) {
 352                 dev_warn(&priv->i2c->dev,
 353                                 "%s: I2C rw failed=%d addr=%02x reg=%02x\n",
 354                                 KBUILD_MODNAME, ret, priv->i2c_address, reg);
 355                 return ret;
 356         }
 357         ret = i2c_transfer(priv->i2c, &msg[1], 1);
 358         if (ret >= 0 && ret != 1)
 359                 ret = -EREMOTEIO;
 360         if (ret < 0) {
 361                 dev_warn(&priv->i2c->dev,
 362                                 "%s: i2c rd failed=%d addr=%02x reg=%02x\n",
 363                                 KBUILD_MODNAME, ret, priv->i2c_address, reg);
 364                 return ret;
 365         }
 366         helene_i2c_debug(priv, reg, 0, val, len);
 367         return 0;
 368 }
 369 
 370 static int helene_read_reg(struct helene_priv *priv, u8 reg, u8 *val)
 371 {
 372         return helene_read_regs(priv, reg, val, 1);
 373 }
 374 
 375 static int helene_set_reg_bits(struct helene_priv *priv,
 376                 u8 reg, u8 data, u8 mask)
 377 {
 378         int res;
 379         u8 rdata;
 380 
 381         if (mask != 0xff) {
 382                 res = helene_read_reg(priv, reg, &rdata);
 383                 if (res != 0)
 384                         return res;
 385                 data = ((data & mask) | (rdata & (mask ^ 0xFF)));
 386         }
 387         return helene_write_reg(priv, reg, data);
 388 }
 389 
 390 static int helene_enter_power_save(struct helene_priv *priv)
 391 {
 392         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 393         if (priv->state == STATE_SLEEP)
 394                 return 0;
 395 
 396         /* Standby setting for CPU */
 397         helene_write_reg(priv, 0x88, 0x0);
 398 
 399         /* Standby setting for internal logic block */
 400         helene_write_reg(priv, 0x87, 0xC0);
 401 
 402         priv->state = STATE_SLEEP;
 403         return 0;
 404 }
 405 
 406 static int helene_leave_power_save(struct helene_priv *priv)
 407 {
 408         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 409         if (priv->state == STATE_ACTIVE)
 410                 return 0;
 411 
 412         /* Standby setting for internal logic block */
 413         helene_write_reg(priv, 0x87, 0xC4);
 414 
 415         /* Standby setting for CPU */
 416         helene_write_reg(priv, 0x88, 0x40);
 417 
 418         priv->state = STATE_ACTIVE;
 419         return 0;
 420 }
 421 
 422 static int helene_init(struct dvb_frontend *fe)
 423 {
 424         struct helene_priv *priv = fe->tuner_priv;
 425 
 426         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 427         return helene_leave_power_save(priv);
 428 }
 429 
 430 static void helene_release(struct dvb_frontend *fe)
 431 {
 432         struct helene_priv *priv = fe->tuner_priv;
 433 
 434         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 435         kfree(fe->tuner_priv);
 436         fe->tuner_priv = NULL;
 437 }
 438 
 439 static int helene_sleep(struct dvb_frontend *fe)
 440 {
 441         struct helene_priv *priv = fe->tuner_priv;
 442 
 443         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 444         helene_enter_power_save(priv);
 445         return 0;
 446 }
 447 
 448 static enum helene_tv_system_t helene_get_tv_system(struct dvb_frontend *fe)
 449 {
 450         enum helene_tv_system_t system = SONY_HELENE_TV_SYSTEM_UNKNOWN;
 451         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 452         struct helene_priv *priv = fe->tuner_priv;
 453 
 454         if (p->delivery_system == SYS_DVBT) {
 455                 if (p->bandwidth_hz <= 5000000)
 456                         system = SONY_HELENE_DTV_DVBT_5;
 457                 else if (p->bandwidth_hz <= 6000000)
 458                         system = SONY_HELENE_DTV_DVBT_6;
 459                 else if (p->bandwidth_hz <= 7000000)
 460                         system = SONY_HELENE_DTV_DVBT_7;
 461                 else if (p->bandwidth_hz <= 8000000)
 462                         system = SONY_HELENE_DTV_DVBT_8;
 463                 else {
 464                         system = SONY_HELENE_DTV_DVBT_8;
 465                         p->bandwidth_hz = 8000000;
 466                 }
 467         } else if (p->delivery_system == SYS_DVBT2) {
 468                 if (p->bandwidth_hz <= 5000000)
 469                         system = SONY_HELENE_DTV_DVBT2_5;
 470                 else if (p->bandwidth_hz <= 6000000)
 471                         system = SONY_HELENE_DTV_DVBT2_6;
 472                 else if (p->bandwidth_hz <= 7000000)
 473                         system = SONY_HELENE_DTV_DVBT2_7;
 474                 else if (p->bandwidth_hz <= 8000000)
 475                         system = SONY_HELENE_DTV_DVBT2_8;
 476                 else {
 477                         system = SONY_HELENE_DTV_DVBT2_8;
 478                         p->bandwidth_hz = 8000000;
 479                 }
 480         } else if (p->delivery_system == SYS_DVBS) {
 481                 system = SONY_HELENE_STV_DVBS;
 482         } else if (p->delivery_system == SYS_DVBS2) {
 483                 system = SONY_HELENE_STV_DVBS2;
 484         } else if (p->delivery_system == SYS_ISDBS) {
 485                 system = SONY_HELENE_STV_ISDBS;
 486         } else if (p->delivery_system == SYS_ISDBT) {
 487                 if (p->bandwidth_hz <= 6000000)
 488                         system = SONY_HELENE_DTV_ISDBT_6;
 489                 else if (p->bandwidth_hz <= 7000000)
 490                         system = SONY_HELENE_DTV_ISDBT_7;
 491                 else if (p->bandwidth_hz <= 8000000)
 492                         system = SONY_HELENE_DTV_ISDBT_8;
 493                 else {
 494                         system = SONY_HELENE_DTV_ISDBT_8;
 495                         p->bandwidth_hz = 8000000;
 496                 }
 497         } else if (p->delivery_system == SYS_DVBC_ANNEX_A) {
 498                 if (p->bandwidth_hz <= 6000000)
 499                         system = SONY_HELENE_DTV_DVBC_6;
 500                 else if (p->bandwidth_hz <= 8000000)
 501                         system = SONY_HELENE_DTV_DVBC_8;
 502         }
 503         dev_dbg(&priv->i2c->dev,
 504                         "%s(): HELENE DTV system %d (delsys %d, bandwidth %d)\n",
 505                         __func__, (int)system, p->delivery_system,
 506                         p->bandwidth_hz);
 507         return system;
 508 }
 509 
 510 static int helene_set_params_s(struct dvb_frontend *fe)
 511 {
 512         u8 data[MAX_WRITE_REGSIZE];
 513         u32 frequency;
 514         enum helene_tv_system_t tv_system;
 515         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 516         struct helene_priv *priv = fe->tuner_priv;
 517         int frequencykHz = p->frequency;
 518         uint32_t frequency4kHz = 0;
 519         u32 symbol_rate = p->symbol_rate/1000;
 520 
 521         dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz sr=%uKsps\n",
 522                         __func__, frequencykHz, symbol_rate);
 523         tv_system = helene_get_tv_system(fe);
 524 
 525         if (tv_system == SONY_HELENE_TV_SYSTEM_UNKNOWN) {
 526                 dev_err(&priv->i2c->dev, "%s(): unknown DTV system\n",
 527                                 __func__);
 528                 return -EINVAL;
 529         }
 530         /* RF switch turn to satellite */
 531         if (priv->set_tuner)
 532                 priv->set_tuner(priv->set_tuner_data, 0);
 533         frequency = roundup(p->frequency / 1000, 1);
 534 
 535         /* Disable IF signal output */
 536         helene_write_reg(priv, 0x15, 0x02);
 537 
 538         /* RFIN matching in power save (Sat) reset */
 539         helene_write_reg(priv, 0x43, 0x06);
 540 
 541         /* Analog block setting (0x6A, 0x6B) */
 542         data[0] = 0x00;
 543         data[1] = 0x00;
 544         helene_write_regs(priv, 0x6A, data, 2);
 545         helene_write_reg(priv, 0x75, 0x99);
 546         helene_write_reg(priv, 0x9D, 0x00);
 547 
 548         /* Tuning setting for CPU (0x61) */
 549         helene_write_reg(priv, 0x61, 0x07);
 550 
 551         /* Satellite mode select (0x01) */
 552         helene_write_reg(priv, 0x01, 0x01);
 553 
 554         /* Clock enable for internal logic block, CPU wake-up (0x04, 0x05) */
 555         data[0] = 0xC4;
 556         data[1] = 0x40;
 557 
 558         switch (priv->xtal) {
 559         case SONY_HELENE_XTAL_16000:
 560                 data[2] = 0x02;
 561                 break;
 562         case SONY_HELENE_XTAL_20500:
 563                 data[2] = 0x02;
 564                 break;
 565         case SONY_HELENE_XTAL_24000:
 566                 data[2] = 0x03;
 567                 break;
 568         case SONY_HELENE_XTAL_41000:
 569                 data[2] = 0x05;
 570                 break;
 571         default:
 572                 dev_err(&priv->i2c->dev, "%s(): unknown xtal %d\n",
 573                                 __func__, priv->xtal);
 574                 return -EINVAL;
 575         }
 576 
 577         /* Setting for analog block (0x07). LOOPFILTER INTERNAL */
 578         data[3] = 0x80;
 579 
 580         /* Tuning setting for analog block
 581          * (0x08, 0x09, 0x0A, 0x0B). LOOPFILTER INTERNAL
 582         */
 583         if (priv->xtal == SONY_HELENE_XTAL_20500)
 584                 data[4] = 0x58;
 585         else
 586                 data[4] = 0x70;
 587 
 588         data[5] = 0x1E;
 589         data[6] = 0x02;
 590         data[7] = 0x24;
 591 
 592         /* Enable for analog block (0x0C, 0x0D, 0x0E). SAT LNA ON */
 593         data[8] = 0x0F;
 594         data[8] |= 0xE0; /* POWERSAVE_TERR_RF_ACTIVE */
 595         data[9]  = 0x02;
 596         data[10] = 0x1E;
 597 
 598         /* Setting for LPF cutoff frequency (0x0F) */
 599         switch (tv_system) {
 600         case SONY_HELENE_STV_ISDBS:
 601                 data[11] = 0x22; /* 22MHz */
 602                 break;
 603         case SONY_HELENE_STV_DVBS:
 604                 if (symbol_rate <= 4000)
 605                         data[11] = 0x05;
 606                 else if (symbol_rate <= 10000)
 607                         data[11] = (uint8_t)((symbol_rate * 47
 608                                                 + (40000-1)) / 40000);
 609                 else
 610                         data[11] = (uint8_t)((symbol_rate * 27
 611                                                 + (40000-1)) / 40000 + 5);
 612 
 613                 if (data[11] > 36)
 614                         data[11] = 36; /* 5 <= lpf_cutoff <= 36 is valid */
 615                 break;
 616         case SONY_HELENE_STV_DVBS2:
 617                 if (symbol_rate <= 4000)
 618                         data[11] = 0x05;
 619                 else if (symbol_rate <= 10000)
 620                         data[11] = (uint8_t)((symbol_rate * 11
 621                                                 + (10000-1)) / 10000);
 622                 else
 623                         data[11] = (uint8_t)((symbol_rate * 3
 624                                                 + (5000-1)) / 5000 + 5);
 625 
 626                 if (data[11] > 36)
 627                         data[11] = 36; /* 5 <= lpf_cutoff <= 36 is valid */
 628                 break;
 629         default:
 630                 dev_err(&priv->i2c->dev, "%s(): unknown standard %d\n",
 631                                 __func__, tv_system);
 632                 return -EINVAL;
 633         }
 634 
 635         /* RF tuning frequency setting (0x10, 0x11, 0x12) */
 636         frequency4kHz = (frequencykHz + 2) / 4;
 637         data[12] = (uint8_t)(frequency4kHz & 0xFF);         /* FRF_L */
 638         data[13] = (uint8_t)((frequency4kHz >> 8) & 0xFF);  /* FRF_M */
 639         /* FRF_H (bit[3:0]) */
 640         data[14] = (uint8_t)((frequency4kHz >> 16) & 0x0F);
 641 
 642         /* Tuning command (0x13) */
 643         data[15] = 0xFF;
 644 
 645         /* Setting for IQOUT_LIMIT (0x14) 0.75Vpp */
 646         data[16] = 0x00;
 647 
 648         /* Enable IQ output (0x15) */
 649         data[17] = 0x01;
 650 
 651         helene_write_regs(priv, 0x04, data, 18);
 652 
 653         dev_dbg(&priv->i2c->dev, "%s(): tune done\n",
 654                         __func__);
 655 
 656         priv->frequency = frequency;
 657         return 0;
 658 }
 659 
 660 static int helene_set_params_t(struct dvb_frontend *fe)
 661 {
 662         u8 data[MAX_WRITE_REGSIZE];
 663         u32 frequency;
 664         enum helene_tv_system_t tv_system;
 665         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 666         struct helene_priv *priv = fe->tuner_priv;
 667         int frequencykHz = p->frequency / 1000;
 668 
 669         dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz\n",
 670                         __func__, frequencykHz);
 671         tv_system = helene_get_tv_system(fe);
 672 
 673         if (tv_system == SONY_HELENE_TV_SYSTEM_UNKNOWN) {
 674                 dev_dbg(&priv->i2c->dev, "%s(): unknown DTV system\n",
 675                                 __func__);
 676                 return -EINVAL;
 677         }
 678         if (priv->set_tuner)
 679                 priv->set_tuner(priv->set_tuner_data, 1);
 680         frequency = roundup(p->frequency / 1000, 25);
 681 
 682         /* mode select */
 683         helene_write_reg(priv, 0x01, 0x00);
 684 
 685         /* Disable IF signal output */
 686         helene_write_reg(priv, 0x74, 0x02);
 687 
 688         if (priv->state == STATE_SLEEP)
 689                 helene_leave_power_save(priv);
 690 
 691         /* Initial setting for internal analog block (0x91, 0x92) */
 692         if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
 693                         (tv_system == SONY_HELENE_DTV_DVBC_8)) {
 694                 data[0] = 0x16;
 695                 data[1] = 0x26;
 696         } else {
 697                 data[0] = 0x10;
 698                 data[1] = 0x20;
 699         }
 700         helene_write_regs(priv, 0x91, data, 2);
 701 
 702         /* Setting for analog block */
 703         if (TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system))
 704                 data[0] = 0x90;
 705         else
 706                 data[0] = 0x00;
 707 
 708         /* Setting for local polarity (0x9D) */
 709         data[1] = (uint8_t)(terr_params[tv_system].IS_LOWERLOCAL & 0x01);
 710         helene_write_regs(priv, 0x9C, data, 2);
 711 
 712         /* Enable for analog block */
 713         data[0] = 0xEE;
 714         data[1] = 0x02;
 715         data[2] = 0x1E;
 716         data[3] = 0x67; /* Tuning setting for CPU */
 717 
 718         /* Setting for PLL reference divider for xtal=24MHz */
 719         if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
 720                         (tv_system == SONY_HELENE_DTV_DVBC_8))
 721                 data[4] = 0x18;
 722         else
 723                 data[4] = 0x03;
 724 
 725         /* Tuning setting for analog block */
 726         if (TERR_INTERNAL_LOOPFILTER_AVAILABLE(tv_system)) {
 727                 data[5] = 0x38;
 728                 data[6] = 0x1E;
 729                 data[7] = 0x02;
 730                 data[8] = 0x24;
 731         } else if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
 732                         (tv_system == SONY_HELENE_DTV_DVBC_8)) {
 733                 data[5] = 0x1C;
 734                 data[6] = 0x78;
 735                 data[7] = 0x08;
 736                 data[8] = 0x1C;
 737         } else {
 738                 data[5] = 0xB4;
 739                 data[6] = 0x78;
 740                 data[7] = 0x08;
 741                 data[8] = 0x30;
 742         }
 743         helene_write_regs(priv, 0x5E, data, 9);
 744 
 745         /* LT_AMP_EN should be 0 */
 746         helene_set_reg_bits(priv, 0x67, 0x0, 0x02);
 747 
 748         /* Setting for IFOUT_LIMIT */
 749         data[0] = 0x00; /* 1.5Vpp */
 750 
 751         /* RF_GAIN setting */
 752         if (terr_params[tv_system].RF_GAIN == HELENE_AUTO)
 753                 data[1] = 0x80; /* RF_GAIN_SEL = 1 */
 754         else
 755                 data[1] = (uint8_t)((terr_params[tv_system].RF_GAIN
 756                                         << 4) & 0x70);
 757 
 758         /* IF_BPF_GC setting */
 759         data[1] |= (uint8_t)(terr_params[tv_system].IF_BPF_GC & 0x0F);
 760 
 761         /* Setting for internal RFAGC (0x6A, 0x6B, 0x6C) */
 762         data[2] = 0x00;
 763         if (frequencykHz <= 172000) {
 764                 data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_VL
 765                                 & 0x0F);
 766                 data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_VL
 767                                 & 0x07);
 768         } else if (frequencykHz <= 464000) {
 769                 data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_VH
 770                                 & 0x0F);
 771                 data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_VH
 772                                 & 0x07);
 773         } else {
 774                 data[3] = (uint8_t)(terr_params[tv_system].RFOVLD_DET_LV1_U
 775                                 & 0x0F);
 776                 data[4] = (uint8_t)(terr_params[tv_system].IFOVLD_DET_LV_U
 777                                 & 0x07);
 778         }
 779         data[4] |= 0x20;
 780 
 781         /* Setting for IF frequency and bandwidth */
 782 
 783         /* IF filter center frequency offset (IF_BPF_F0) (0x6D) */
 784         data[5] = (uint8_t)((terr_params[tv_system].IF_BPF_F0 << 4) & 0x30);
 785 
 786         /* IF filter band width (BW) (0x6D) */
 787         data[5] |= (uint8_t)(terr_params[tv_system].BW & 0x03);
 788 
 789         /* IF frequency offset value (FIF_OFFSET) (0x6E) */
 790         data[6] = (uint8_t)(terr_params[tv_system].FIF_OFFSET & 0x1F);
 791 
 792         /* IF band width offset value (BW_OFFSET) (0x6F) */
 793         data[7] = (uint8_t)(terr_params[tv_system].BW_OFFSET & 0x1F);
 794 
 795         /* RF tuning frequency setting (0x70, 0x71, 0x72) */
 796         data[8]  = (uint8_t)(frequencykHz & 0xFF);         /* FRF_L */
 797         data[9]  = (uint8_t)((frequencykHz >> 8) & 0xFF);  /* FRF_M */
 798         data[10] = (uint8_t)((frequencykHz >> 16)
 799                         & 0x0F); /* FRF_H (bit[3:0]) */
 800 
 801         /* Tuning command */
 802         data[11] = 0xFF;
 803 
 804         /* Enable IF output, AGC and IFOUT pin selection (0x74) */
 805         data[12] = 0x01;
 806 
 807         if ((tv_system == SONY_HELENE_DTV_DVBC_6) ||
 808                         (tv_system == SONY_HELENE_DTV_DVBC_8)) {
 809                 data[13] = 0xD9;
 810                 data[14] = 0x0F;
 811                 data[15] = 0x24;
 812                 data[16] = 0x87;
 813         } else {
 814                 data[13] = 0x99;
 815                 data[14] = 0x00;
 816                 data[15] = 0x24;
 817                 data[16] = 0x87;
 818         }
 819 
 820         helene_write_regs(priv, 0x68, data, 17);
 821 
 822         dev_dbg(&priv->i2c->dev, "%s(): tune done\n",
 823                         __func__);
 824 
 825         priv->frequency = frequency;
 826         return 0;
 827 }
 828 
 829 static int helene_set_params(struct dvb_frontend *fe)
 830 {
 831         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 832 
 833         if (p->delivery_system == SYS_DVBT ||
 834             p->delivery_system == SYS_DVBT2 ||
 835             p->delivery_system == SYS_ISDBT ||
 836             p->delivery_system == SYS_DVBC_ANNEX_A)
 837                 return helene_set_params_t(fe);
 838 
 839         return helene_set_params_s(fe);
 840 }
 841 
 842 static int helene_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 843 {
 844         struct helene_priv *priv = fe->tuner_priv;
 845 
 846         *frequency = priv->frequency * 1000;
 847         return 0;
 848 }
 849 
 850 static const struct dvb_tuner_ops helene_tuner_ops_t = {
 851         .info = {
 852                 .name = "Sony HELENE Ter tuner",
 853                 .frequency_min_hz  =    1 * MHz,
 854                 .frequency_max_hz  = 1200 * MHz,
 855                 .frequency_step_hz =   25 * kHz,
 856         },
 857         .init = helene_init,
 858         .release = helene_release,
 859         .sleep = helene_sleep,
 860         .set_params = helene_set_params_t,
 861         .get_frequency = helene_get_frequency,
 862 };
 863 
 864 static const struct dvb_tuner_ops helene_tuner_ops_s = {
 865         .info = {
 866                 .name = "Sony HELENE Sat tuner",
 867                 .frequency_min_hz  =  500 * MHz,
 868                 .frequency_max_hz  = 2500 * MHz,
 869                 .frequency_step_hz =    1 * MHz,
 870         },
 871         .init = helene_init,
 872         .release = helene_release,
 873         .sleep = helene_sleep,
 874         .set_params = helene_set_params_s,
 875         .get_frequency = helene_get_frequency,
 876 };
 877 
 878 static const struct dvb_tuner_ops helene_tuner_ops = {
 879         .info = {
 880                 .name = "Sony HELENE Sat/Ter tuner",
 881                 .frequency_min_hz  =    1 * MHz,
 882                 .frequency_max_hz  = 2500 * MHz,
 883                 .frequency_step_hz =   25 * kHz,
 884         },
 885         .init = helene_init,
 886         .release = helene_release,
 887         .sleep = helene_sleep,
 888         .set_params = helene_set_params,
 889         .get_frequency = helene_get_frequency,
 890 };
 891 
 892 /* power-on tuner
 893  * call once after reset
 894  */
 895 static int helene_x_pon(struct helene_priv *priv)
 896 {
 897         /* RFIN matching in power save (terrestrial) = ACTIVE */
 898         /* RFIN matching in power save (satellite) = ACTIVE */
 899         u8 dataT[] = { 0x06, 0x00, 0x02, 0x00 };
 900         /* SAT_RF_ACTIVE = true, lnaOff = false, terrRfActive = true */
 901         u8 dataS[] = { 0x05, 0x06 };
 902         u8 cdata[] = {0x7A, 0x01};
 903         u8 data[20];
 904         u8 rdata[2];
 905 
 906         /* mode select */
 907         helene_write_reg(priv, 0x01, 0x00);
 908 
 909         helene_write_reg(priv, 0x67, dataT[3]);
 910         helene_write_reg(priv, 0x43, dataS[1]);
 911         helene_write_regs(priv, 0x5E, dataT, 3);
 912         helene_write_reg(priv, 0x0C, dataS[0]);
 913 
 914         /* Initial setting for internal logic block */
 915         helene_write_regs(priv, 0x99, cdata, sizeof(cdata));
 916 
 917         /* 0x81 - 0x94 */
 918         if (priv->xtal == SONY_HELENE_XTAL_16000)
 919                 data[0] = 0x10; /* xtal 16 MHz */
 920         else
 921                 data[0] = 0x18; /* xtal 24 MHz */
 922         data[1] = (uint8_t)(0x80 | (0x04 & 0x1F)); /* 4 x 25 = 100uA */
 923         data[2] = (uint8_t)(0x80 | (0x26 & 0x7F)); /* 38 x 0.25 = 9.5pF */
 924         data[3] = 0x80; /* REFOUT signal output 500mVpp */
 925         data[4] = 0x00; /* GPIO settings */
 926         data[5] = 0x00; /* GPIO settings */
 927         data[6] = 0xC4; /* Clock enable for internal logic block */
 928         data[7] = 0x40; /* Start CPU boot-up */
 929         data[8] = 0x10; /* For burst-write */
 930 
 931         /* Setting for internal RFAGC */
 932         data[9] = 0x00;
 933         data[10] = 0x45;
 934         data[11] = 0x75;
 935 
 936         data[12] = 0x07; /* Setting for analog block */
 937 
 938         /* Initial setting for internal analog block */
 939         data[13] = 0x1C;
 940         data[14] = 0x3F;
 941         data[15] = 0x02;
 942         data[16] = 0x10;
 943         data[17] = 0x20;
 944         data[18] = 0x0A;
 945         data[19] = 0x00;
 946 
 947         helene_write_regs(priv, 0x81, data, sizeof(data));
 948 
 949         /* Setting for internal RFAGC */
 950         helene_write_reg(priv, 0x9B, 0x00);
 951 
 952         msleep(20);
 953 
 954         /* Check CPU_STT/CPU_ERR */
 955         helene_read_regs(priv, 0x1A, rdata, sizeof(rdata));
 956 
 957         if (rdata[0] != 0x00) {
 958                 dev_err(&priv->i2c->dev,
 959                                 "HELENE tuner CPU error 0x%x\n", rdata[0]);
 960                 return -EIO;
 961         }
 962 
 963         /* VCO current setting */
 964         cdata[0] = 0x90;
 965         cdata[1] = 0x06;
 966         helene_write_regs(priv, 0x17, cdata, sizeof(cdata));
 967         msleep(20);
 968         helene_read_reg(priv, 0x19, data);
 969         helene_write_reg(priv, 0x95, (uint8_t)((data[0] >> 4) & 0x0F));
 970 
 971         /* Disable IF signal output */
 972         helene_write_reg(priv, 0x74, 0x02);
 973 
 974         /* Standby setting for CPU */
 975         helene_write_reg(priv, 0x88, 0x00);
 976 
 977         /* Standby setting for internal logic block */
 978         helene_write_reg(priv, 0x87, 0xC0);
 979 
 980         /* Load capacitance control setting for crystal oscillator */
 981         helene_write_reg(priv, 0x80, 0x01);
 982 
 983         /* Satellite initial setting */
 984         cdata[0] = 0x07;
 985         cdata[1] = 0x00;
 986         helene_write_regs(priv, 0x41, cdata, sizeof(cdata));
 987 
 988         dev_info(&priv->i2c->dev,
 989                         "HELENE tuner x_pon done\n");
 990 
 991         return 0;
 992 }
 993 
 994 struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
 995                 const struct helene_config *config,
 996                 struct i2c_adapter *i2c)
 997 {
 998         struct helene_priv *priv = NULL;
 999 
1000         priv = kzalloc(sizeof(struct helene_priv), GFP_KERNEL);
1001         if (priv == NULL)
1002                 return NULL;
1003         priv->i2c_address = (config->i2c_address >> 1);
1004         priv->i2c = i2c;
1005         priv->set_tuner_data = config->set_tuner_priv;
1006         priv->set_tuner = config->set_tuner_callback;
1007         priv->xtal = config->xtal;
1008 
1009         if (fe->ops.i2c_gate_ctrl)
1010                 fe->ops.i2c_gate_ctrl(fe, 1);
1011 
1012         if (helene_x_pon(priv) != 0) {
1013                 kfree(priv);
1014                 return NULL;
1015         }
1016 
1017         if (fe->ops.i2c_gate_ctrl)
1018                 fe->ops.i2c_gate_ctrl(fe, 0);
1019 
1020         memcpy(&fe->ops.tuner_ops, &helene_tuner_ops_s,
1021                         sizeof(struct dvb_tuner_ops));
1022         fe->tuner_priv = priv;
1023         dev_info(&priv->i2c->dev,
1024                         "Sony HELENE Sat attached on addr=%x at I2C adapter %p\n",
1025                         priv->i2c_address, priv->i2c);
1026         return fe;
1027 }
1028 EXPORT_SYMBOL(helene_attach_s);
1029 
1030 struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
1031                 const struct helene_config *config,
1032                 struct i2c_adapter *i2c)
1033 {
1034         struct helene_priv *priv = NULL;
1035 
1036         priv = kzalloc(sizeof(struct helene_priv), GFP_KERNEL);
1037         if (priv == NULL)
1038                 return NULL;
1039         priv->i2c_address = (config->i2c_address >> 1);
1040         priv->i2c = i2c;
1041         priv->set_tuner_data = config->set_tuner_priv;
1042         priv->set_tuner = config->set_tuner_callback;
1043         priv->xtal = config->xtal;
1044 
1045         if (fe->ops.i2c_gate_ctrl)
1046                 fe->ops.i2c_gate_ctrl(fe, 1);
1047 
1048         if (helene_x_pon(priv) != 0) {
1049                 kfree(priv);
1050                 return NULL;
1051         }
1052 
1053         if (fe->ops.i2c_gate_ctrl)
1054                 fe->ops.i2c_gate_ctrl(fe, 0);
1055 
1056         memcpy(&fe->ops.tuner_ops, &helene_tuner_ops_t,
1057                         sizeof(struct dvb_tuner_ops));
1058         fe->tuner_priv = priv;
1059         dev_info(&priv->i2c->dev,
1060                         "Sony HELENE Ter attached on addr=%x at I2C adapter %p\n",
1061                         priv->i2c_address, priv->i2c);
1062         return fe;
1063 }
1064 EXPORT_SYMBOL(helene_attach);
1065 
1066 static int helene_probe(struct i2c_client *client,
1067                         const struct i2c_device_id *id)
1068 {
1069         struct helene_config *config = client->dev.platform_data;
1070         struct dvb_frontend *fe = config->fe;
1071         struct device *dev = &client->dev;
1072         struct helene_priv *priv;
1073 
1074         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1075         if (!priv)
1076                 return -ENOMEM;
1077 
1078         priv->i2c_address = client->addr;
1079         priv->i2c = client->adapter;
1080         priv->set_tuner_data = config->set_tuner_priv;
1081         priv->set_tuner = config->set_tuner_callback;
1082         priv->xtal = config->xtal;
1083 
1084         if (fe->ops.i2c_gate_ctrl)
1085                 fe->ops.i2c_gate_ctrl(fe, 1);
1086 
1087         if (helene_x_pon(priv) != 0)
1088                 return -EINVAL;
1089 
1090         if (fe->ops.i2c_gate_ctrl)
1091                 fe->ops.i2c_gate_ctrl(fe, 0);
1092 
1093         memcpy(&fe->ops.tuner_ops, &helene_tuner_ops,
1094                sizeof(struct dvb_tuner_ops));
1095         fe->tuner_priv = priv;
1096         i2c_set_clientdata(client, priv);
1097 
1098         dev_info(dev, "Sony HELENE attached on addr=%x at I2C adapter %p\n",
1099                  priv->i2c_address, priv->i2c);
1100 
1101         return 0;
1102 }
1103 
1104 static const struct i2c_device_id helene_id[] = {
1105         { "helene", },
1106         {}
1107 };
1108 MODULE_DEVICE_TABLE(i2c, helene_id);
1109 
1110 static struct i2c_driver helene_driver = {
1111         .driver = {
1112                 .name = "helene",
1113         },
1114         .probe    = helene_probe,
1115         .id_table = helene_id,
1116 };
1117 module_i2c_driver(helene_driver);
1118 
1119 MODULE_DESCRIPTION("Sony HELENE Sat/Ter tuner driver");
1120 MODULE_AUTHOR("Abylay Ospan <aospan@netup.ru>");
1121 MODULE_LICENSE("GPL");
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root/drivers/media/dvb-frontends/helene.c

DEFINITIONS
