drivers/media/dvb-frontends/ascot2e.c

   1 /*
   2  * ascot2e.c
   3  *
   4  * Sony Ascot3E DVB-T/T2/C/C2 tuner driver
   5  *
   6  * Copyright 2012 Sony Corporation
   7  * Copyright (C) 2014 NetUP Inc.
   8  * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
   9  * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20   */
  21
  22 #include <linux/slab.h>
  23 #include <linux/module.h>
  24 #include <linux/dvb/frontend.h>
  25 #include <linux/types.h>
  26 #include "ascot2e.h"
  27 #include "dvb_frontend.h"
  28
  29 #define MAX_WRITE_REGSIZE 10
  30
  31 enum ascot2e_state {
  32         STATE_UNKNOWN,
  33         STATE_SLEEP,
  34         STATE_ACTIVE
  35 };
  36
  37 struct ascot2e_priv {
  38         u32                     frequency;
  39         u8                      i2c_address;
  40         struct i2c_adapter      *i2c;
  41         enum ascot2e_state      state;
  42         void                    *set_tuner_data;
  43         int                     (*set_tuner)(void *, int);
  44 };
  45
  46 enum ascot2e_tv_system_t {
  47         ASCOT2E_DTV_DVBT_5,
  48         ASCOT2E_DTV_DVBT_6,
  49         ASCOT2E_DTV_DVBT_7,
  50         ASCOT2E_DTV_DVBT_8,
  51         ASCOT2E_DTV_DVBT2_1_7,
  52         ASCOT2E_DTV_DVBT2_5,
  53         ASCOT2E_DTV_DVBT2_6,
  54         ASCOT2E_DTV_DVBT2_7,
  55         ASCOT2E_DTV_DVBT2_8,
  56         ASCOT2E_DTV_DVBC_6,
  57         ASCOT2E_DTV_DVBC_8,
  58         ASCOT2E_DTV_DVBC2_6,
  59         ASCOT2E_DTV_DVBC2_8,
  60         ASCOT2E_DTV_UNKNOWN
  61 };
  62
  63 struct ascot2e_band_sett {
  64         u8      if_out_sel;
  65         u8      agc_sel;
  66         u8      mix_oll;
  67         u8      rf_gain;
  68         u8      if_bpf_gc;
  69         u8      fif_offset;
  70         u8      bw_offset;
  71         u8      bw;
  72         u8      rf_oldet;
  73         u8      if_bpf_f0;
  74 };
  75
  76 #define ASCOT2E_AUTO            0xff
  77 #define ASCOT2E_OFFSET(ofs)     ((u8)(ofs) & 0x1F)
  78 #define ASCOT2E_BW_6            0x00
  79 #define ASCOT2E_BW_7            0x01
  80 #define ASCOT2E_BW_8            0x02
  81 #define ASCOT2E_BW_1_7          0x03
  82
  83 static struct ascot2e_band_sett ascot2e_sett[] = {
  84         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  85           ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
  86         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  87           ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
  88         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  89           ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },
  90         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  91           ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },
  92         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  93         ASCOT2E_OFFSET(-10), ASCOT2E_OFFSET(-16), ASCOT2E_BW_1_7, 0x0B, 0x00 },
  94         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  95           ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
  96         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  97           ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
  98         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
  99           ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },
 100         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
 101           ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },
 102         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,
 103           ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-8), ASCOT2E_BW_6,  0x09, 0x00 },
 104         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,
 105           ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(-1), ASCOT2E_BW_8,  0x09, 0x00 },
 106         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,
 107           ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_6,  0x09, 0x00 },
 108         { ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,
 109           ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(2),  ASCOT2E_BW_8,  0x09, 0x00 }
 110 };
 111
 112 static void ascot2e_i2c_debug(struct ascot2e_priv *priv,
 113                               u8 reg, u8 write, const u8 *data, u32 len)
 114 {
 115         dev_dbg(&priv->i2c->dev, "ascot2e: I2C %s reg 0x%02x size %d\n",
 116                 (write == 0 ? "read" : "write"), reg, len);
 117         print_hex_dump_bytes("ascot2e: I2C data: ",
 118                 DUMP_PREFIX_OFFSET, data, len);
 119 }
 120
 121 static int ascot2e_write_regs(struct ascot2e_priv *priv,
 122                               u8 reg, const u8 *data, u32 len)
 123 {
 124         int ret;
 125         u8 buf[MAX_WRITE_REGSIZE + 1];
 126         struct i2c_msg msg[1] = {
 127                 {
 128                         .addr = priv->i2c_address,
 129                         .flags = 0,
 130                         .len = len + 1,
 131                         .buf = buf,
 132                 }
 133         };
 134
 135         if (len + 1 > sizeof(buf)) {
 136                 dev_warn(&priv->i2c->dev,"wr reg=%04x: len=%d is too big!\n",
 137                          reg, len + 1);
 138                 return -E2BIG;
 139         }
 140
 141         ascot2e_i2c_debug(priv, reg, 1, data, len);
 142         buf[0] = reg;
 143         memcpy(&buf[1], data, len);
 144         ret = i2c_transfer(priv->i2c, msg, 1);
 145         if (ret >= 0 && ret != 1)
 146                 ret = -EREMOTEIO;
 147         if (ret < 0) {
 148                 dev_warn(&priv->i2c->dev,
 149                         "%s: i2c wr failed=%d reg=%02x len=%d\n",
 150                         KBUILD_MODNAME, ret, reg, len);
 151                 return ret;
 152         }
 153         return 0;
 154 }
 155
 156 static int ascot2e_write_reg(struct ascot2e_priv *priv, u8 reg, u8 val)
 157 {
 158         return ascot2e_write_regs(priv, reg, &val, 1);
 159 }
 160
 161 static int ascot2e_read_regs(struct ascot2e_priv *priv,
 162                              u8 reg, u8 *val, u32 len)
 163 {
 164         int ret;
 165         struct i2c_msg msg[2] = {
 166                 {
 167                         .addr = priv->i2c_address,
 168                         .flags = 0,
 169                         .len = 1,
 170                         .buf = &reg,
 171                 }, {
 172                         .addr = priv->i2c_address,
 173                         .flags = I2C_M_RD,
 174                         .len = len,
 175                         .buf = val,
 176                 }
 177         };
 178
 179         ret = i2c_transfer(priv->i2c, &msg[0], 1);
 180         if (ret >= 0 && ret != 1)
 181                 ret = -EREMOTEIO;
 182         if (ret < 0) {
 183                 dev_warn(&priv->i2c->dev,
 184                         "%s: I2C rw failed=%d addr=%02x reg=%02x\n",
 185                         KBUILD_MODNAME, ret, priv->i2c_address, reg);
 186                 return ret;
 187         }
 188         ret = i2c_transfer(priv->i2c, &msg[1], 1);
 189         if (ret >= 0 && ret != 1)
 190                 ret = -EREMOTEIO;
 191         if (ret < 0) {
 192                 dev_warn(&priv->i2c->dev,
 193                         "%s: i2c rd failed=%d addr=%02x reg=%02x\n",
 194                         KBUILD_MODNAME, ret, priv->i2c_address, reg);
 195                 return ret;
 196         }
 197         ascot2e_i2c_debug(priv, reg, 0, val, len);
 198         return 0;
 199 }
 200
 201 static int ascot2e_read_reg(struct ascot2e_priv *priv, u8 reg, u8 *val)
 202 {
 203         return ascot2e_read_regs(priv, reg, val, 1);
 204 }
 205
 206 static int ascot2e_set_reg_bits(struct ascot2e_priv *priv,
 207                                 u8 reg, u8 data, u8 mask)
 208 {
 209         int res;
 210         u8 rdata;
 211
 212         if (mask != 0xff) {
 213                 res = ascot2e_read_reg(priv, reg, &rdata);
 214                 if (res != 0)
 215                         return res;
 216                 data = ((data & mask) | (rdata & (mask ^ 0xFF)));
 217         }
 218         return ascot2e_write_reg(priv, reg, data);
 219 }
 220
 221 static int ascot2e_enter_power_save(struct ascot2e_priv *priv)
 222 {
 223         u8 data[2];
 224
 225         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 226         if (priv->state == STATE_SLEEP)
 227                 return 0;
 228         data[0] = 0x00;
 229         data[1] = 0x04;
 230         ascot2e_write_regs(priv, 0x14, data, 2);
 231         ascot2e_write_reg(priv, 0x50, 0x01);
 232         priv->state = STATE_SLEEP;
 233         return 0;
 234 }
 235
 236 static int ascot2e_leave_power_save(struct ascot2e_priv *priv)
 237 {
 238         u8 data[2] = { 0xFB, 0x0F };
 239
 240         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 241         if (priv->state == STATE_ACTIVE)
 242                 return 0;
 243         ascot2e_write_regs(priv, 0x14, data, 2);
 244         ascot2e_write_reg(priv, 0x50, 0x00);
 245         priv->state = STATE_ACTIVE;
 246         return 0;
 247 }
 248
 249 static int ascot2e_init(struct dvb_frontend *fe)
 250 {
 251         struct ascot2e_priv *priv = fe->tuner_priv;
 252
 253         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 254         return ascot2e_leave_power_save(priv);
 255 }
 256
 257 static void ascot2e_release(struct dvb_frontend *fe)
 258 {
 259         struct ascot2e_priv *priv = fe->tuner_priv;
 260
 261         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 262         kfree(fe->tuner_priv);
 263         fe->tuner_priv = NULL;
 264 }
 265
 266 static int ascot2e_sleep(struct dvb_frontend *fe)
 267 {
 268         struct ascot2e_priv *priv = fe->tuner_priv;
 269
 270         dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 271         ascot2e_enter_power_save(priv);
 272         return 0;
 273 }
 274
 275 static enum ascot2e_tv_system_t ascot2e_get_tv_system(struct dvb_frontend *fe)
 276 {
 277         enum ascot2e_tv_system_t system = ASCOT2E_DTV_UNKNOWN;
 278         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 279         struct ascot2e_priv *priv = fe->tuner_priv;
 280
 281         if (p->delivery_system == SYS_DVBT) {
 282                 if (p->bandwidth_hz <= 5000000)
 283                         system = ASCOT2E_DTV_DVBT_5;
 284                 else if (p->bandwidth_hz <= 6000000)
 285                         system = ASCOT2E_DTV_DVBT_6;
 286                 else if (p->bandwidth_hz <= 7000000)
 287                         system = ASCOT2E_DTV_DVBT_7;
 288                 else if (p->bandwidth_hz <= 8000000)
 289                         system = ASCOT2E_DTV_DVBT_8;
 290                 else {
 291                         system = ASCOT2E_DTV_DVBT_8;
 292                         p->bandwidth_hz = 8000000;
 293                 }
 294         } else if (p->delivery_system == SYS_DVBT2) {
 295                 if (p->bandwidth_hz <= 5000000)
 296                         system = ASCOT2E_DTV_DVBT2_5;
 297                 else if (p->bandwidth_hz <= 6000000)
 298                         system = ASCOT2E_DTV_DVBT2_6;
 299                 else if (p->bandwidth_hz <= 7000000)
 300                         system = ASCOT2E_DTV_DVBT2_7;
 301                 else if (p->bandwidth_hz <= 8000000)
 302                         system = ASCOT2E_DTV_DVBT2_8;
 303                 else {
 304                         system = ASCOT2E_DTV_DVBT2_8;
 305                         p->bandwidth_hz = 8000000;
 306                 }
 307         } else if (p->delivery_system == SYS_DVBC_ANNEX_A) {
 308                 if (p->bandwidth_hz <= 6000000)
 309                         system = ASCOT2E_DTV_DVBC_6;
 310                 else if (p->bandwidth_hz <= 8000000)
 311                         system = ASCOT2E_DTV_DVBC_8;
 312         }
 313         dev_dbg(&priv->i2c->dev,
 314                 "%s(): ASCOT2E DTV system %d (delsys %d, bandwidth %d)\n",
 315                 __func__, (int)system, p->delivery_system, p->bandwidth_hz);
 316         return system;
 317 }
 318
 319 static int ascot2e_set_params(struct dvb_frontend *fe)
 320 {
 321         u8 data[10];
 322         u32 frequency;
 323         enum ascot2e_tv_system_t tv_system;
 324         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 325         struct ascot2e_priv *priv = fe->tuner_priv;
 326
 327         dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz\n",
 328                 __func__, p->frequency / 1000);
 329         tv_system = ascot2e_get_tv_system(fe);
 330
 331         if (tv_system == ASCOT2E_DTV_UNKNOWN) {
 332                 dev_dbg(&priv->i2c->dev, "%s(): unknown DTV system\n",
 333                         __func__);
 334                 return -EINVAL;
 335         }
 336         if (priv->set_tuner)
 337                 priv->set_tuner(priv->set_tuner_data, 1);
 338         frequency = roundup(p->frequency / 1000, 25);
 339         if (priv->state == STATE_SLEEP)
 340                 ascot2e_leave_power_save(priv);
 341
 342         /* IF_OUT_SEL / AGC_SEL setting */
 343         data[0] = 0x00;
 344         if (ascot2e_sett[tv_system].agc_sel != ASCOT2E_AUTO) {
 345                 /* AGC pin setting from parameter table */
 346                 data[0] |= (u8)(
 347                         (ascot2e_sett[tv_system].agc_sel & 0x03) << 3);
 348         }
 349         if (ascot2e_sett[tv_system].if_out_sel != ASCOT2E_AUTO) {
 350                 /* IFOUT pin setting from parameter table */
 351                 data[0] |= (u8)(
 352                         (ascot2e_sett[tv_system].if_out_sel & 0x01) << 2);
 353         }
 354         /* Set bit[4:2] only */
 355         ascot2e_set_reg_bits(priv, 0x05, data[0], 0x1c);
 356         /* 0x06 - 0x0F */
 357         /* REF_R setting (0x06) */
 358         if (tv_system == ASCOT2E_DTV_DVBC_6 ||
 359                         tv_system == ASCOT2E_DTV_DVBC_8) {
 360                 /* xtal, xtal*2 */
 361                 data[0] = (frequency > 500000) ? 16 : 32;
 362         } else {
 363                 /* xtal/8, xtal/4 */
 364                 data[0] = (frequency > 500000) ? 2 : 4;
 365         }
 366         /* XOSC_SEL=100uA */
 367         data[1] = 0x04;
 368         /* KBW setting (0x08), KC0 setting (0x09), KC1 setting (0x0A) */
 369         if (tv_system == ASCOT2E_DTV_DVBC_6 ||
 370                         tv_system == ASCOT2E_DTV_DVBC_8) {
 371                 data[2] = 18;
 372                 data[3] = 120;
 373                 data[4] = 20;
 374         } else {
 375                 data[2] = 48;
 376                 data[3] = 10;
 377                 data[4] = 30;
 378         }
 379         /* ORDER/R2_RANGE/R2_BANK/C2_BANK setting (0x0B) */
 380         if (tv_system == ASCOT2E_DTV_DVBC_6 ||
 381                         tv_system == ASCOT2E_DTV_DVBC_8)
 382                 data[5] = (frequency > 500000) ? 0x08 : 0x0c;
 383         else
 384                 data[5] = (frequency > 500000) ? 0x30 : 0x38;
 385         /* Set MIX_OLL (0x0C) value from parameter table */
 386         data[6] = ascot2e_sett[tv_system].mix_oll;
 387         /* Set RF_GAIN (0x0D) setting from parameter table */
 388         if (ascot2e_sett[tv_system].rf_gain == ASCOT2E_AUTO) {
 389                 /* RF_GAIN auto control enable */
 390                 ascot2e_write_reg(priv, 0x4E, 0x01);
 391                 /* RF_GAIN Default value */
 392                 data[7] = 0x00;
 393         } else {
 394                 /* RF_GAIN auto control disable */
 395                 ascot2e_write_reg(priv, 0x4E, 0x00);
 396                 data[7] = ascot2e_sett[tv_system].rf_gain;
 397         }
 398         /* Set IF_BPF_GC/FIF_OFFSET (0x0E) value from parameter table */
 399         data[8] = (u8)((ascot2e_sett[tv_system].fif_offset << 3) |
 400                 (ascot2e_sett[tv_system].if_bpf_gc & 0x07));
 401         /* Set BW_OFFSET (0x0F) value from parameter table */
 402         data[9] = ascot2e_sett[tv_system].bw_offset;
 403         ascot2e_write_regs(priv, 0x06, data, 10);
 404         /*
 405          * 0x45 - 0x47
 406          * LNA optimization setting
 407          * RF_LNA_DIST1-5, RF_LNA_CM
 408          */
 409         if (tv_system == ASCOT2E_DTV_DVBC_6 ||
 410                         tv_system == ASCOT2E_DTV_DVBC_8) {
 411                 data[0] = 0x0F;
 412                 data[1] = 0x00;
 413                 data[2] = 0x01;
 414         } else {
 415                 data[0] = 0x0F;
 416                 data[1] = 0x00;
 417                 data[2] = 0x03;
 418         }
 419         ascot2e_write_regs(priv, 0x45, data, 3);
 420         /* 0x49 - 0x4A
 421          Set RF_OLDET_ENX/RF_OLDET_OLL value from parameter table */
 422         data[0] = ascot2e_sett[tv_system].rf_oldet;
 423         /* Set IF_BPF_F0 value from parameter table */
 424         data[1] = ascot2e_sett[tv_system].if_bpf_f0;
 425         ascot2e_write_regs(priv, 0x49, data, 2);
 426         /*
 427          * Tune now
 428          * RFAGC fast mode / RFAGC auto control enable
 429          * (set bit[7], bit[5:4] only)
 430          * vco_cal = 1, set MIX_OL_CPU_EN
 431          */
 432         ascot2e_set_reg_bits(priv, 0x0c, 0x90, 0xb0);
 433         /* Logic wake up, CPU wake up */
 434         data[0] = 0xc4;
 435         data[1] = 0x40;
 436         ascot2e_write_regs(priv, 0x03, data, 2);
 437         /* 0x10 - 0x14 */
 438         data[0] = (u8)(frequency & 0xFF);         /* 0x10: FRF_L */
 439         data[1] = (u8)((frequency >> 8) & 0xFF);  /* 0x11: FRF_M */
 440         data[2] = (u8)((frequency >> 16) & 0x0F); /* 0x12: FRF_H (bit[3:0]) */
 441         /* 0x12: BW (bit[5:4]) */
 442         data[2] |= (u8)(ascot2e_sett[tv_system].bw << 4);
 443         data[3] = 0xFF; /* 0x13: VCO calibration enable */
 444         data[4] = 0xFF; /* 0x14: Analog block enable */
 445         /* Tune (Burst write) */
 446         ascot2e_write_regs(priv, 0x10, data, 5);
 447         msleep(50);
 448         /* CPU deep sleep */
 449         ascot2e_write_reg(priv, 0x04, 0x00);
 450         /* Logic sleep */
 451         ascot2e_write_reg(priv, 0x03, 0xC0);
 452         /* RFAGC normal mode (set bit[5:4] only) */
 453         ascot2e_set_reg_bits(priv, 0x0C, 0x00, 0x30);
 454         priv->frequency = frequency;
 455         return 0;
 456 }
 457
 458 static int ascot2e_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 459 {
 460         struct ascot2e_priv *priv = fe->tuner_priv;
 461
 462         *frequency = priv->frequency * 1000;
 463         return 0;
 464 }
 465
 466 static const struct dvb_tuner_ops ascot2e_tuner_ops = {
 467         .info = {
 468                 .name = "Sony ASCOT2E",
 469                 .frequency_min = 1000000,
 470                 .frequency_max = 1200000000,
 471                 .frequency_step = 25000,
 472         },
 473         .init = ascot2e_init,
 474         .release = ascot2e_release,
 475         .sleep = ascot2e_sleep,
 476         .set_params = ascot2e_set_params,
 477         .get_frequency = ascot2e_get_frequency,
 478 };
 479
 480 struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
 481                                     const struct ascot2e_config *config,
 482                                     struct i2c_adapter *i2c)
 483 {
 484         u8 data[4];
 485         struct ascot2e_priv *priv = NULL;
 486
 487         priv = kzalloc(sizeof(struct ascot2e_priv), GFP_KERNEL);
 488         if (priv == NULL)
 489                 return NULL;
 490         priv->i2c_address = (config->i2c_address >> 1);
 491         priv->i2c = i2c;
 492         priv->set_tuner_data = config->set_tuner_priv;
 493         priv->set_tuner = config->set_tuner_callback;
 494
 495         if (fe->ops.i2c_gate_ctrl)
 496                 fe->ops.i2c_gate_ctrl(fe, 1);
 497
 498         /* 16 MHz xTal frequency */
 499         data[0] = 16;
 500         /* VCO current setting */
 501         data[1] = 0x06;
 502         /* Logic wake up, CPU boot */
 503         data[2] = 0xC4;
 504         data[3] = 0x40;
 505         ascot2e_write_regs(priv, 0x01, data, 4);
 506         /* RFVGA optimization setting (RF_DIST0 - RF_DIST2) */
 507         data[0] = 0x10;
 508         data[1] = 0x3F;
 509         data[2] = 0x25;
 510         ascot2e_write_regs(priv, 0x22, data, 3);
 511         /* PLL mode setting */
 512         ascot2e_write_reg(priv, 0x28, 0x1e);
 513         /* RSSI setting */
 514         ascot2e_write_reg(priv, 0x59, 0x04);
 515         /* TODO check CPU HW error state here */
 516         msleep(80);
 517         /* Xtal oscillator current control setting */
 518         ascot2e_write_reg(priv, 0x4c, 0x01);
 519         /* XOSC_SEL=100uA */
 520         ascot2e_write_reg(priv, 0x07, 0x04);
 521         /* CPU deep sleep */
 522         ascot2e_write_reg(priv, 0x04, 0x00);
 523         /* Logic sleep */
 524         ascot2e_write_reg(priv, 0x03, 0xc0);
 525         /* Power save setting */
 526         data[0] = 0x00;
 527         data[1] = 0x04;
 528         ascot2e_write_regs(priv, 0x14, data, 2);
 529         ascot2e_write_reg(priv, 0x50, 0x01);
 530         priv->state = STATE_SLEEP;
 531
 532         if (fe->ops.i2c_gate_ctrl)
 533                 fe->ops.i2c_gate_ctrl(fe, 0);
 534
 535         memcpy(&fe->ops.tuner_ops, &ascot2e_tuner_ops,
 536                                 sizeof(struct dvb_tuner_ops));
 537         fe->tuner_priv = priv;
 538         dev_info(&priv->i2c->dev,
 539                 "Sony ASCOT2E attached on addr=%x at I2C adapter %p\n",
 540                 priv->i2c_address, priv->i2c);
 541         return fe;
 542 }
 543 EXPORT_SYMBOL(ascot2e_attach);
 544
 545 MODULE_DESCRIPTION("Sony ASCOT2E terr/cab tuner driver");
 546 MODULE_AUTHOR("info@netup.ru");
 547 MODULE_LICENSE("GPL");