linux/drivers/media/dvb-frontends/cxd2841er.c
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   1/*
   2 * cxd2841er.c
   3 *
   4 * Sony digital demodulator driver for
   5 *      CXD2841ER - DVB-S/S2/T/T2/C/C2
   6 *      CXD2854ER - DVB-S/S2/T/T2/C/C2, ISDB-T/S
   7 *
   8 * Copyright 2012 Sony Corporation
   9 * Copyright (C) 2014 NetUP Inc.
  10 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
  11 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License as published by
  15 * the Free Software Foundation; either version 2 of the License, or
  16 * (at your option) any later version.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 * GNU General Public License for more details.
  22  */
  23
  24#include <linux/module.h>
  25#include <linux/init.h>
  26#include <linux/string.h>
  27#include <linux/slab.h>
  28#include <linux/bitops.h>
  29#include <linux/math64.h>
  30#include <linux/log2.h>
  31#include <linux/dynamic_debug.h>
  32#include <linux/kernel.h>
  33
  34#include <media/dvb_math.h>
  35#include <media/dvb_frontend.h>
  36#include "cxd2841er.h"
  37#include "cxd2841er_priv.h"
  38
  39#define MAX_WRITE_REGSIZE       16
  40#define LOG2_E_100X 144
  41
  42#define INTLOG10X100(x) ((u32) (((u64) intlog10(x) * 100) >> 24))
  43
  44/* DVB-C constellation */
  45enum sony_dvbc_constellation_t {
  46        SONY_DVBC_CONSTELLATION_16QAM,
  47        SONY_DVBC_CONSTELLATION_32QAM,
  48        SONY_DVBC_CONSTELLATION_64QAM,
  49        SONY_DVBC_CONSTELLATION_128QAM,
  50        SONY_DVBC_CONSTELLATION_256QAM
  51};
  52
  53enum cxd2841er_state {
  54        STATE_SHUTDOWN = 0,
  55        STATE_SLEEP_S,
  56        STATE_ACTIVE_S,
  57        STATE_SLEEP_TC,
  58        STATE_ACTIVE_TC
  59};
  60
  61struct cxd2841er_priv {
  62        struct dvb_frontend             frontend;
  63        struct i2c_adapter              *i2c;
  64        u8                              i2c_addr_slvx;
  65        u8                              i2c_addr_slvt;
  66        const struct cxd2841er_config   *config;
  67        enum cxd2841er_state            state;
  68        u8                              system;
  69        enum cxd2841er_xtal             xtal;
  70        enum fe_caps caps;
  71        u32                             flags;
  72};
  73
  74static const struct cxd2841er_cnr_data s_cn_data[] = {
  75        { 0x033e, 0 }, { 0x0339, 100 }, { 0x0333, 200 },
  76        { 0x032e, 300 }, { 0x0329, 400 }, { 0x0324, 500 },
  77        { 0x031e, 600 }, { 0x0319, 700 }, { 0x0314, 800 },
  78        { 0x030f, 900 }, { 0x030a, 1000 }, { 0x02ff, 1100 },
  79        { 0x02f4, 1200 }, { 0x02e9, 1300 }, { 0x02de, 1400 },
  80        { 0x02d4, 1500 }, { 0x02c9, 1600 }, { 0x02bf, 1700 },
  81        { 0x02b5, 1800 }, { 0x02ab, 1900 }, { 0x02a1, 2000 },
  82        { 0x029b, 2100 }, { 0x0295, 2200 }, { 0x0290, 2300 },
  83        { 0x028a, 2400 }, { 0x0284, 2500 }, { 0x027f, 2600 },
  84        { 0x0279, 2700 }, { 0x0274, 2800 }, { 0x026e, 2900 },
  85        { 0x0269, 3000 }, { 0x0262, 3100 }, { 0x025c, 3200 },
  86        { 0x0255, 3300 }, { 0x024f, 3400 }, { 0x0249, 3500 },
  87        { 0x0242, 3600 }, { 0x023c, 3700 }, { 0x0236, 3800 },
  88        { 0x0230, 3900 }, { 0x022a, 4000 }, { 0x0223, 4100 },
  89        { 0x021c, 4200 }, { 0x0215, 4300 }, { 0x020e, 4400 },
  90        { 0x0207, 4500 }, { 0x0201, 4600 }, { 0x01fa, 4700 },
  91        { 0x01f4, 4800 }, { 0x01ed, 4900 }, { 0x01e7, 5000 },
  92        { 0x01e0, 5100 }, { 0x01d9, 5200 }, { 0x01d2, 5300 },
  93        { 0x01cb, 5400 }, { 0x01c4, 5500 }, { 0x01be, 5600 },
  94        { 0x01b7, 5700 }, { 0x01b1, 5800 }, { 0x01aa, 5900 },
  95        { 0x01a4, 6000 }, { 0x019d, 6100 }, { 0x0196, 6200 },
  96        { 0x018f, 6300 }, { 0x0189, 6400 }, { 0x0182, 6500 },
  97        { 0x017c, 6600 }, { 0x0175, 6700 }, { 0x016f, 6800 },
  98        { 0x0169, 6900 }, { 0x0163, 7000 }, { 0x015c, 7100 },
  99        { 0x0156, 7200 }, { 0x0150, 7300 }, { 0x014a, 7400 },
 100        { 0x0144, 7500 }, { 0x013e, 7600 }, { 0x0138, 7700 },
 101        { 0x0132, 7800 }, { 0x012d, 7900 }, { 0x0127, 8000 },
 102        { 0x0121, 8100 }, { 0x011c, 8200 }, { 0x0116, 8300 },
 103        { 0x0111, 8400 }, { 0x010b, 8500 }, { 0x0106, 8600 },
 104        { 0x0101, 8700 }, { 0x00fc, 8800 }, { 0x00f7, 8900 },
 105        { 0x00f2, 9000 }, { 0x00ee, 9100 }, { 0x00ea, 9200 },
 106        { 0x00e6, 9300 }, { 0x00e2, 9400 }, { 0x00de, 9500 },
 107        { 0x00da, 9600 }, { 0x00d7, 9700 }, { 0x00d3, 9800 },
 108        { 0x00d0, 9900 }, { 0x00cc, 10000 }, { 0x00c7, 10100 },
 109        { 0x00c3, 10200 }, { 0x00bf, 10300 }, { 0x00ba, 10400 },
 110        { 0x00b6, 10500 }, { 0x00b2, 10600 }, { 0x00ae, 10700 },
 111        { 0x00aa, 10800 }, { 0x00a7, 10900 }, { 0x00a3, 11000 },
 112        { 0x009f, 11100 }, { 0x009c, 11200 }, { 0x0098, 11300 },
 113        { 0x0094, 11400 }, { 0x0091, 11500 }, { 0x008e, 11600 },
 114        { 0x008a, 11700 }, { 0x0087, 11800 }, { 0x0084, 11900 },
 115        { 0x0081, 12000 }, { 0x007e, 12100 }, { 0x007b, 12200 },
 116        { 0x0079, 12300 }, { 0x0076, 12400 }, { 0x0073, 12500 },
 117        { 0x0071, 12600 }, { 0x006e, 12700 }, { 0x006c, 12800 },
 118        { 0x0069, 12900 }, { 0x0067, 13000 }, { 0x0065, 13100 },
 119        { 0x0062, 13200 }, { 0x0060, 13300 }, { 0x005e, 13400 },
 120        { 0x005c, 13500 }, { 0x005a, 13600 }, { 0x0058, 13700 },
 121        { 0x0056, 13800 }, { 0x0054, 13900 }, { 0x0052, 14000 },
 122        { 0x0050, 14100 }, { 0x004e, 14200 }, { 0x004c, 14300 },
 123        { 0x004b, 14400 }, { 0x0049, 14500 }, { 0x0047, 14600 },
 124        { 0x0046, 14700 }, { 0x0044, 14800 }, { 0x0043, 14900 },
 125        { 0x0041, 15000 }, { 0x003f, 15100 }, { 0x003e, 15200 },
 126        { 0x003c, 15300 }, { 0x003b, 15400 }, { 0x003a, 15500 },
 127        { 0x0037, 15700 }, { 0x0036, 15800 }, { 0x0034, 15900 },
 128        { 0x0033, 16000 }, { 0x0032, 16100 }, { 0x0031, 16200 },
 129        { 0x0030, 16300 }, { 0x002f, 16400 }, { 0x002e, 16500 },
 130        { 0x002d, 16600 }, { 0x002c, 16700 }, { 0x002b, 16800 },
 131        { 0x002a, 16900 }, { 0x0029, 17000 }, { 0x0028, 17100 },
 132        { 0x0027, 17200 }, { 0x0026, 17300 }, { 0x0025, 17400 },
 133        { 0x0024, 17500 }, { 0x0023, 17600 }, { 0x0022, 17800 },
 134        { 0x0021, 17900 }, { 0x0020, 18000 }, { 0x001f, 18200 },
 135        { 0x001e, 18300 }, { 0x001d, 18500 }, { 0x001c, 18700 },
 136        { 0x001b, 18900 }, { 0x001a, 19000 }, { 0x0019, 19200 },
 137        { 0x0018, 19300 }, { 0x0017, 19500 }, { 0x0016, 19700 },
 138        { 0x0015, 19900 }, { 0x0014, 20000 },
 139};
 140
 141static const struct cxd2841er_cnr_data s2_cn_data[] = {
 142        { 0x05af, 0 }, { 0x0597, 100 }, { 0x057e, 200 },
 143        { 0x0567, 300 }, { 0x0550, 400 }, { 0x0539, 500 },
 144        { 0x0522, 600 }, { 0x050c, 700 }, { 0x04f6, 800 },
 145        { 0x04e1, 900 }, { 0x04cc, 1000 }, { 0x04b6, 1100 },
 146        { 0x04a1, 1200 }, { 0x048c, 1300 }, { 0x0477, 1400 },
 147        { 0x0463, 1500 }, { 0x044f, 1600 }, { 0x043c, 1700 },
 148        { 0x0428, 1800 }, { 0x0416, 1900 }, { 0x0403, 2000 },
 149        { 0x03ef, 2100 }, { 0x03dc, 2200 }, { 0x03c9, 2300 },
 150        { 0x03b6, 2400 }, { 0x03a4, 2500 }, { 0x0392, 2600 },
 151        { 0x0381, 2700 }, { 0x036f, 2800 }, { 0x035f, 2900 },
 152        { 0x034e, 3000 }, { 0x033d, 3100 }, { 0x032d, 3200 },
 153        { 0x031d, 3300 }, { 0x030d, 3400 }, { 0x02fd, 3500 },
 154        { 0x02ee, 3600 }, { 0x02df, 3700 }, { 0x02d0, 3800 },
 155        { 0x02c2, 3900 }, { 0x02b4, 4000 }, { 0x02a6, 4100 },
 156        { 0x0299, 4200 }, { 0x028c, 4300 }, { 0x027f, 4400 },
 157        { 0x0272, 4500 }, { 0x0265, 4600 }, { 0x0259, 4700 },
 158        { 0x024d, 4800 }, { 0x0241, 4900 }, { 0x0236, 5000 },
 159        { 0x022b, 5100 }, { 0x0220, 5200 }, { 0x0215, 5300 },
 160        { 0x020a, 5400 }, { 0x0200, 5500 }, { 0x01f6, 5600 },
 161        { 0x01ec, 5700 }, { 0x01e2, 5800 }, { 0x01d8, 5900 },
 162        { 0x01cf, 6000 }, { 0x01c6, 6100 }, { 0x01bc, 6200 },
 163        { 0x01b3, 6300 }, { 0x01aa, 6400 }, { 0x01a2, 6500 },
 164        { 0x0199, 6600 }, { 0x0191, 6700 }, { 0x0189, 6800 },
 165        { 0x0181, 6900 }, { 0x0179, 7000 }, { 0x0171, 7100 },
 166        { 0x0169, 7200 }, { 0x0161, 7300 }, { 0x015a, 7400 },
 167        { 0x0153, 7500 }, { 0x014b, 7600 }, { 0x0144, 7700 },
 168        { 0x013d, 7800 }, { 0x0137, 7900 }, { 0x0130, 8000 },
 169        { 0x012a, 8100 }, { 0x0124, 8200 }, { 0x011e, 8300 },
 170        { 0x0118, 8400 }, { 0x0112, 8500 }, { 0x010c, 8600 },
 171        { 0x0107, 8700 }, { 0x0101, 8800 }, { 0x00fc, 8900 },
 172        { 0x00f7, 9000 }, { 0x00f2, 9100 }, { 0x00ec, 9200 },
 173        { 0x00e7, 9300 }, { 0x00e2, 9400 }, { 0x00dd, 9500 },
 174        { 0x00d8, 9600 }, { 0x00d4, 9700 }, { 0x00cf, 9800 },
 175        { 0x00ca, 9900 }, { 0x00c6, 10000 }, { 0x00c2, 10100 },
 176        { 0x00be, 10200 }, { 0x00b9, 10300 }, { 0x00b5, 10400 },
 177        { 0x00b1, 10500 }, { 0x00ae, 10600 }, { 0x00aa, 10700 },
 178        { 0x00a6, 10800 }, { 0x00a3, 10900 }, { 0x009f, 11000 },
 179        { 0x009b, 11100 }, { 0x0098, 11200 }, { 0x0095, 11300 },
 180        { 0x0091, 11400 }, { 0x008e, 11500 }, { 0x008b, 11600 },
 181        { 0x0088, 11700 }, { 0x0085, 11800 }, { 0x0082, 11900 },
 182        { 0x007f, 12000 }, { 0x007c, 12100 }, { 0x007a, 12200 },
 183        { 0x0077, 12300 }, { 0x0074, 12400 }, { 0x0072, 12500 },
 184        { 0x006f, 12600 }, { 0x006d, 12700 }, { 0x006b, 12800 },
 185        { 0x0068, 12900 }, { 0x0066, 13000 }, { 0x0064, 13100 },
 186        { 0x0061, 13200 }, { 0x005f, 13300 }, { 0x005d, 13400 },
 187        { 0x005b, 13500 }, { 0x0059, 13600 }, { 0x0057, 13700 },
 188        { 0x0055, 13800 }, { 0x0053, 13900 }, { 0x0051, 14000 },
 189        { 0x004f, 14100 }, { 0x004e, 14200 }, { 0x004c, 14300 },
 190        { 0x004a, 14400 }, { 0x0049, 14500 }, { 0x0047, 14600 },
 191        { 0x0045, 14700 }, { 0x0044, 14800 }, { 0x0042, 14900 },
 192        { 0x0041, 15000 }, { 0x003f, 15100 }, { 0x003e, 15200 },
 193        { 0x003c, 15300 }, { 0x003b, 15400 }, { 0x003a, 15500 },
 194        { 0x0038, 15600 }, { 0x0037, 15700 }, { 0x0036, 15800 },
 195        { 0x0034, 15900 }, { 0x0033, 16000 }, { 0x0032, 16100 },
 196        { 0x0031, 16200 }, { 0x0030, 16300 }, { 0x002f, 16400 },
 197        { 0x002e, 16500 }, { 0x002d, 16600 }, { 0x002c, 16700 },
 198        { 0x002b, 16800 }, { 0x002a, 16900 }, { 0x0029, 17000 },
 199        { 0x0028, 17100 }, { 0x0027, 17200 }, { 0x0026, 17300 },
 200        { 0x0025, 17400 }, { 0x0024, 17500 }, { 0x0023, 17600 },
 201        { 0x0022, 17800 }, { 0x0021, 17900 }, { 0x0020, 18000 },
 202        { 0x001f, 18200 }, { 0x001e, 18300 }, { 0x001d, 18500 },
 203        { 0x001c, 18700 }, { 0x001b, 18900 }, { 0x001a, 19000 },
 204        { 0x0019, 19200 }, { 0x0018, 19300 }, { 0x0017, 19500 },
 205        { 0x0016, 19700 }, { 0x0015, 19900 }, { 0x0014, 20000 },
 206};
 207
 208static int cxd2841er_freeze_regs(struct cxd2841er_priv *priv);
 209static int cxd2841er_unfreeze_regs(struct cxd2841er_priv *priv);
 210
 211static void cxd2841er_i2c_debug(struct cxd2841er_priv *priv,
 212                                u8 addr, u8 reg, u8 write,
 213                                const u8 *data, u32 len)
 214{
 215        dev_dbg(&priv->i2c->dev,
 216                "cxd2841er: I2C %s addr %02x reg 0x%02x size %d data %*ph\n",
 217                (write == 0 ? "read" : "write"), addr, reg, len, len, data);
 218}
 219
 220static int cxd2841er_write_regs(struct cxd2841er_priv *priv,
 221                                u8 addr, u8 reg, const u8 *data, u32 len)
 222{
 223        int ret;
 224        u8 buf[MAX_WRITE_REGSIZE + 1];
 225        u8 i2c_addr = (addr == I2C_SLVX ?
 226                priv->i2c_addr_slvx : priv->i2c_addr_slvt);
 227        struct i2c_msg msg[1] = {
 228                {
 229                        .addr = i2c_addr,
 230                        .flags = 0,
 231                        .len = len + 1,
 232                        .buf = buf,
 233                }
 234        };
 235
 236        if (len + 1 >= sizeof(buf)) {
 237                dev_warn(&priv->i2c->dev, "wr reg=%04x: len=%d is too big!\n",
 238                         reg, len + 1);
 239                return -E2BIG;
 240        }
 241
 242        cxd2841er_i2c_debug(priv, i2c_addr, reg, 1, data, len);
 243        buf[0] = reg;
 244        memcpy(&buf[1], data, len);
 245
 246        ret = i2c_transfer(priv->i2c, msg, 1);
 247        if (ret >= 0 && ret != 1)
 248                ret = -EIO;
 249        if (ret < 0) {
 250                dev_warn(&priv->i2c->dev,
 251                        "%s: i2c wr failed=%d addr=%02x reg=%02x len=%d\n",
 252                        KBUILD_MODNAME, ret, i2c_addr, reg, len);
 253                return ret;
 254        }
 255        return 0;
 256}
 257
 258static int cxd2841er_write_reg(struct cxd2841er_priv *priv,
 259                               u8 addr, u8 reg, u8 val)
 260{
 261        u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
 262
 263        return cxd2841er_write_regs(priv, addr, reg, &tmp, 1);
 264}
 265
 266static int cxd2841er_read_regs(struct cxd2841er_priv *priv,
 267                               u8 addr, u8 reg, u8 *val, u32 len)
 268{
 269        int ret;
 270        u8 i2c_addr = (addr == I2C_SLVX ?
 271                priv->i2c_addr_slvx : priv->i2c_addr_slvt);
 272        struct i2c_msg msg[2] = {
 273                {
 274                        .addr = i2c_addr,
 275                        .flags = 0,
 276                        .len = 1,
 277                        .buf = &reg,
 278                }, {
 279                        .addr = i2c_addr,
 280                        .flags = I2C_M_RD,
 281                        .len = len,
 282                        .buf = val,
 283                }
 284        };
 285
 286        ret = i2c_transfer(priv->i2c, msg, 2);
 287        if (ret >= 0 && ret != 2)
 288                ret = -EIO;
 289        if (ret < 0) {
 290                dev_warn(&priv->i2c->dev,
 291                        "%s: i2c rd failed=%d addr=%02x reg=%02x\n",
 292                        KBUILD_MODNAME, ret, i2c_addr, reg);
 293                return ret;
 294        }
 295        cxd2841er_i2c_debug(priv, i2c_addr, reg, 0, val, len);
 296        return 0;
 297}
 298
 299static int cxd2841er_read_reg(struct cxd2841er_priv *priv,
 300                              u8 addr, u8 reg, u8 *val)
 301{
 302        return cxd2841er_read_regs(priv, addr, reg, val, 1);
 303}
 304
 305static int cxd2841er_set_reg_bits(struct cxd2841er_priv *priv,
 306                                  u8 addr, u8 reg, u8 data, u8 mask)
 307{
 308        int res;
 309        u8 rdata;
 310
 311        if (mask != 0xff) {
 312                res = cxd2841er_read_reg(priv, addr, reg, &rdata);
 313                if (res)
 314                        return res;
 315                data = ((data & mask) | (rdata & (mask ^ 0xFF)));
 316        }
 317        return cxd2841er_write_reg(priv, addr, reg, data);
 318}
 319
 320static u32 cxd2841er_calc_iffreq_xtal(enum cxd2841er_xtal xtal, u32 ifhz)
 321{
 322        u64 tmp;
 323
 324        tmp = (u64) ifhz * 16777216;
 325        do_div(tmp, ((xtal == SONY_XTAL_24000) ? 48000000 : 41000000));
 326
 327        return (u32) tmp;
 328}
 329
 330static u32 cxd2841er_calc_iffreq(u32 ifhz)
 331{
 332        return cxd2841er_calc_iffreq_xtal(SONY_XTAL_20500, ifhz);
 333}
 334
 335static int cxd2841er_get_if_hz(struct cxd2841er_priv *priv, u32 def_hz)
 336{
 337        u32 hz;
 338
 339        if (priv->frontend.ops.tuner_ops.get_if_frequency
 340                        && (priv->flags & CXD2841ER_AUTO_IFHZ))
 341                priv->frontend.ops.tuner_ops.get_if_frequency(
 342                        &priv->frontend, &hz);
 343        else
 344                hz = def_hz;
 345
 346        return hz;
 347}
 348
 349static int cxd2841er_tuner_set(struct dvb_frontend *fe)
 350{
 351        struct cxd2841er_priv *priv = fe->demodulator_priv;
 352
 353        if ((priv->flags & CXD2841ER_USE_GATECTRL) && fe->ops.i2c_gate_ctrl)
 354                fe->ops.i2c_gate_ctrl(fe, 1);
 355        if (fe->ops.tuner_ops.set_params)
 356                fe->ops.tuner_ops.set_params(fe);
 357        if ((priv->flags & CXD2841ER_USE_GATECTRL) && fe->ops.i2c_gate_ctrl)
 358                fe->ops.i2c_gate_ctrl(fe, 0);
 359
 360        return 0;
 361}
 362
 363static int cxd2841er_dvbs2_set_symbol_rate(struct cxd2841er_priv *priv,
 364                                           u32 symbol_rate)
 365{
 366        u32 reg_value = 0;
 367        u8 data[3] = {0, 0, 0};
 368
 369        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 370        /*
 371         * regValue = (symbolRateKSps * 2^14 / 1000) + 0.5
 372         *          = ((symbolRateKSps * 2^14) + 500) / 1000
 373         *          = ((symbolRateKSps * 16384) + 500) / 1000
 374         */
 375        reg_value = DIV_ROUND_CLOSEST(symbol_rate * 16384, 1000);
 376        if ((reg_value == 0) || (reg_value > 0xFFFFF)) {
 377                dev_err(&priv->i2c->dev,
 378                        "%s(): reg_value is out of range\n", __func__);
 379                return -EINVAL;
 380        }
 381        data[0] = (u8)((reg_value >> 16) & 0x0F);
 382        data[1] = (u8)((reg_value >>  8) & 0xFF);
 383        data[2] = (u8)(reg_value & 0xFF);
 384        /* Set SLV-T Bank : 0xAE */
 385        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
 386        cxd2841er_write_regs(priv, I2C_SLVT, 0x20, data, 3);
 387        return 0;
 388}
 389
 390static void cxd2841er_set_ts_clock_mode(struct cxd2841er_priv *priv,
 391                                        u8 system);
 392
 393static int cxd2841er_sleep_s_to_active_s(struct cxd2841er_priv *priv,
 394                                         u8 system, u32 symbol_rate)
 395{
 396        int ret;
 397        u8 data[4] = { 0, 0, 0, 0 };
 398
 399        if (priv->state != STATE_SLEEP_S) {
 400                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 401                        __func__, (int)priv->state);
 402                return -EINVAL;
 403        }
 404        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 405        cxd2841er_set_ts_clock_mode(priv, SYS_DVBS);
 406        /* Set demod mode */
 407        if (system == SYS_DVBS) {
 408                data[0] = 0x0A;
 409        } else if (system == SYS_DVBS2) {
 410                data[0] = 0x0B;
 411        } else {
 412                dev_err(&priv->i2c->dev, "%s(): invalid delsys %d\n",
 413                        __func__, system);
 414                return -EINVAL;
 415        }
 416        /* Set SLV-X Bank : 0x00 */
 417        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 418        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, data[0]);
 419        /* DVB-S/S2 */
 420        data[0] = 0x00;
 421        /* Set SLV-T Bank : 0x00 */
 422        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 423        /* Enable S/S2 auto detection 1 */
 424        cxd2841er_write_reg(priv, I2C_SLVT, 0x2d, data[0]);
 425        /* Set SLV-T Bank : 0xAE */
 426        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
 427        /* Enable S/S2 auto detection 2 */
 428        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, data[0]);
 429        /* Set SLV-T Bank : 0x00 */
 430        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 431        /* Enable demod clock */
 432        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
 433        /* Enable ADC clock */
 434        cxd2841er_write_reg(priv, I2C_SLVT, 0x31, 0x01);
 435        /* Enable ADC 1 */
 436        cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
 437        /* Enable ADC 2 */
 438        cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x3f);
 439        /* Set SLV-X Bank : 0x00 */
 440        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 441        /* Enable ADC 3 */
 442        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
 443        /* Set SLV-T Bank : 0xA3 */
 444        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa3);
 445        cxd2841er_write_reg(priv, I2C_SLVT, 0xac, 0x00);
 446        data[0] = 0x07;
 447        data[1] = 0x3B;
 448        data[2] = 0x08;
 449        data[3] = 0xC5;
 450        /* Set SLV-T Bank : 0xAB */
 451        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xab);
 452        cxd2841er_write_regs(priv, I2C_SLVT, 0x98, data, 4);
 453        data[0] = 0x05;
 454        data[1] = 0x80;
 455        data[2] = 0x0A;
 456        data[3] = 0x80;
 457        cxd2841er_write_regs(priv, I2C_SLVT, 0xa8, data, 4);
 458        data[0] = 0x0C;
 459        data[1] = 0xCC;
 460        cxd2841er_write_regs(priv, I2C_SLVT, 0xc3, data, 2);
 461        /* Set demod parameter */
 462        ret = cxd2841er_dvbs2_set_symbol_rate(priv, symbol_rate);
 463        if (ret != 0)
 464                return ret;
 465        /* Set SLV-T Bank : 0x00 */
 466        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 467        /* disable Hi-Z setting 1 */
 468        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x10);
 469        /* disable Hi-Z setting 2 */
 470        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
 471        priv->state = STATE_ACTIVE_S;
 472        return 0;
 473}
 474
 475static int cxd2841er_sleep_tc_to_active_t_band(struct cxd2841er_priv *priv,
 476                                               u32 bandwidth);
 477
 478static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
 479                                                u32 bandwidth);
 480
 481static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
 482                                               u32 bandwidth);
 483
 484static int cxd2841er_sleep_tc_to_active_i(struct cxd2841er_priv *priv,
 485                u32 bandwidth);
 486
 487static int cxd2841er_active_i_to_sleep_tc(struct cxd2841er_priv *priv);
 488
 489static int cxd2841er_sleep_tc_to_shutdown(struct cxd2841er_priv *priv);
 490
 491static int cxd2841er_shutdown_to_sleep_tc(struct cxd2841er_priv *priv);
 492
 493static int cxd2841er_sleep_tc(struct dvb_frontend *fe);
 494
 495static int cxd2841er_retune_active(struct cxd2841er_priv *priv,
 496                                   struct dtv_frontend_properties *p)
 497{
 498        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 499        if (priv->state != STATE_ACTIVE_S &&
 500                        priv->state != STATE_ACTIVE_TC) {
 501                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
 502                        __func__, priv->state);
 503                return -EINVAL;
 504        }
 505        /* Set SLV-T Bank : 0x00 */
 506        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 507        /* disable TS output */
 508        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 509        if (priv->state == STATE_ACTIVE_S)
 510                return cxd2841er_dvbs2_set_symbol_rate(
 511                                priv, p->symbol_rate / 1000);
 512        else if (priv->state == STATE_ACTIVE_TC) {
 513                switch (priv->system) {
 514                case SYS_DVBT:
 515                        return cxd2841er_sleep_tc_to_active_t_band(
 516                                        priv, p->bandwidth_hz);
 517                case SYS_DVBT2:
 518                        return cxd2841er_sleep_tc_to_active_t2_band(
 519                                        priv, p->bandwidth_hz);
 520                case SYS_DVBC_ANNEX_A:
 521                        return cxd2841er_sleep_tc_to_active_c_band(
 522                                        priv, p->bandwidth_hz);
 523                case SYS_ISDBT:
 524                        cxd2841er_active_i_to_sleep_tc(priv);
 525                        cxd2841er_sleep_tc_to_shutdown(priv);
 526                        cxd2841er_shutdown_to_sleep_tc(priv);
 527                        return cxd2841er_sleep_tc_to_active_i(
 528                                        priv, p->bandwidth_hz);
 529                }
 530        }
 531        dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
 532                __func__, priv->system);
 533        return -EINVAL;
 534}
 535
 536static int cxd2841er_active_s_to_sleep_s(struct cxd2841er_priv *priv)
 537{
 538        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 539        if (priv->state != STATE_ACTIVE_S) {
 540                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 541                        __func__, priv->state);
 542                return -EINVAL;
 543        }
 544        /* Set SLV-T Bank : 0x00 */
 545        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 546        /* disable TS output */
 547        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 548        /* enable Hi-Z setting 1 */
 549        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x1f);
 550        /* enable Hi-Z setting 2 */
 551        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
 552        /* Set SLV-X Bank : 0x00 */
 553        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 554        /* disable ADC 1 */
 555        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
 556        /* Set SLV-T Bank : 0x00 */
 557        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 558        /* disable ADC clock */
 559        cxd2841er_write_reg(priv, I2C_SLVT, 0x31, 0x00);
 560        /* disable ADC 2 */
 561        cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
 562        /* disable ADC 3 */
 563        cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
 564        /* SADC Bias ON */
 565        cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
 566        /* disable demod clock */
 567        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
 568        /* Set SLV-T Bank : 0xAE */
 569        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
 570        /* disable S/S2 auto detection1 */
 571        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
 572        /* Set SLV-T Bank : 0x00 */
 573        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 574        /* disable S/S2 auto detection2 */
 575        cxd2841er_write_reg(priv, I2C_SLVT, 0x2d, 0x00);
 576        priv->state = STATE_SLEEP_S;
 577        return 0;
 578}
 579
 580static int cxd2841er_sleep_s_to_shutdown(struct cxd2841er_priv *priv)
 581{
 582        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 583        if (priv->state != STATE_SLEEP_S) {
 584                dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
 585                        __func__, priv->state);
 586                return -EINVAL;
 587        }
 588        /* Set SLV-T Bank : 0x00 */
 589        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 590        /* Disable DSQOUT */
 591        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
 592        /* Disable DSQIN */
 593        cxd2841er_write_reg(priv, I2C_SLVT, 0x9c, 0x00);
 594        /* Set SLV-X Bank : 0x00 */
 595        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 596        /* Disable oscillator */
 597        cxd2841er_write_reg(priv, I2C_SLVX, 0x15, 0x01);
 598        /* Set demod mode */
 599        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
 600        priv->state = STATE_SHUTDOWN;
 601        return 0;
 602}
 603
 604static int cxd2841er_sleep_tc_to_shutdown(struct cxd2841er_priv *priv)
 605{
 606        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 607        if (priv->state != STATE_SLEEP_TC) {
 608                dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
 609                        __func__, priv->state);
 610                return -EINVAL;
 611        }
 612        /* Set SLV-X Bank : 0x00 */
 613        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 614        /* Disable oscillator */
 615        cxd2841er_write_reg(priv, I2C_SLVX, 0x15, 0x01);
 616        /* Set demod mode */
 617        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
 618        priv->state = STATE_SHUTDOWN;
 619        return 0;
 620}
 621
 622static int cxd2841er_active_t_to_sleep_tc(struct cxd2841er_priv *priv)
 623{
 624        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 625        if (priv->state != STATE_ACTIVE_TC) {
 626                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 627                        __func__, priv->state);
 628                return -EINVAL;
 629        }
 630        /* Set SLV-T Bank : 0x00 */
 631        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 632        /* disable TS output */
 633        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 634        /* enable Hi-Z setting 1 */
 635        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
 636        /* enable Hi-Z setting 2 */
 637        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
 638        /* Set SLV-X Bank : 0x00 */
 639        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 640        /* disable ADC 1 */
 641        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
 642        /* Set SLV-T Bank : 0x00 */
 643        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 644        /* Disable ADC 2 */
 645        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 646        /* Disable ADC 3 */
 647        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 648        /* Disable ADC clock */
 649        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
 650        /* Disable RF level monitor */
 651        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
 652        /* Disable demod clock */
 653        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
 654        priv->state = STATE_SLEEP_TC;
 655        return 0;
 656}
 657
 658static int cxd2841er_active_t2_to_sleep_tc(struct cxd2841er_priv *priv)
 659{
 660        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 661        if (priv->state != STATE_ACTIVE_TC) {
 662                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 663                        __func__, priv->state);
 664                return -EINVAL;
 665        }
 666        /* Set SLV-T Bank : 0x00 */
 667        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 668        /* disable TS output */
 669        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 670        /* enable Hi-Z setting 1 */
 671        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
 672        /* enable Hi-Z setting 2 */
 673        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
 674        /* Cancel DVB-T2 setting */
 675        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
 676        cxd2841er_write_reg(priv, I2C_SLVT, 0x83, 0x40);
 677        cxd2841er_write_reg(priv, I2C_SLVT, 0x86, 0x21);
 678        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9e, 0x09, 0x0f);
 679        cxd2841er_write_reg(priv, I2C_SLVT, 0x9f, 0xfb);
 680        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2a);
 681        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x38, 0x00, 0x0f);
 682        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
 683        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x11, 0x00, 0x3f);
 684        /* Set SLV-X Bank : 0x00 */
 685        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 686        /* disable ADC 1 */
 687        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
 688        /* Set SLV-T Bank : 0x00 */
 689        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 690        /* Disable ADC 2 */
 691        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 692        /* Disable ADC 3 */
 693        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 694        /* Disable ADC clock */
 695        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
 696        /* Disable RF level monitor */
 697        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
 698        /* Disable demod clock */
 699        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
 700        priv->state = STATE_SLEEP_TC;
 701        return 0;
 702}
 703
 704static int cxd2841er_active_c_to_sleep_tc(struct cxd2841er_priv *priv)
 705{
 706        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 707        if (priv->state != STATE_ACTIVE_TC) {
 708                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 709                        __func__, priv->state);
 710                return -EINVAL;
 711        }
 712        /* Set SLV-T Bank : 0x00 */
 713        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 714        /* disable TS output */
 715        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 716        /* enable Hi-Z setting 1 */
 717        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
 718        /* enable Hi-Z setting 2 */
 719        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
 720        /* Cancel DVB-C setting */
 721        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
 722        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa3, 0x00, 0x1f);
 723        /* Set SLV-X Bank : 0x00 */
 724        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 725        /* disable ADC 1 */
 726        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
 727        /* Set SLV-T Bank : 0x00 */
 728        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 729        /* Disable ADC 2 */
 730        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 731        /* Disable ADC 3 */
 732        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 733        /* Disable ADC clock */
 734        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
 735        /* Disable RF level monitor */
 736        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
 737        /* Disable demod clock */
 738        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
 739        priv->state = STATE_SLEEP_TC;
 740        return 0;
 741}
 742
 743static int cxd2841er_active_i_to_sleep_tc(struct cxd2841er_priv *priv)
 744{
 745        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 746        if (priv->state != STATE_ACTIVE_TC) {
 747                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 748                                __func__, priv->state);
 749                return -EINVAL;
 750        }
 751        /* Set SLV-T Bank : 0x00 */
 752        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 753        /* disable TS output */
 754        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
 755        /* enable Hi-Z setting 1 */
 756        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
 757        /* enable Hi-Z setting 2 */
 758        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
 759
 760        /* TODO: Cancel demod parameter */
 761
 762        /* Set SLV-X Bank : 0x00 */
 763        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 764        /* disable ADC 1 */
 765        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
 766        /* Set SLV-T Bank : 0x00 */
 767        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 768        /* Disable ADC 2 */
 769        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 770        /* Disable ADC 3 */
 771        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 772        /* Disable ADC clock */
 773        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
 774        /* Disable RF level monitor */
 775        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
 776        /* Disable demod clock */
 777        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
 778        priv->state = STATE_SLEEP_TC;
 779        return 0;
 780}
 781
 782static int cxd2841er_shutdown_to_sleep_s(struct cxd2841er_priv *priv)
 783{
 784        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 785        if (priv->state != STATE_SHUTDOWN) {
 786                dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
 787                        __func__, priv->state);
 788                return -EINVAL;
 789        }
 790        /* Set SLV-X Bank : 0x00 */
 791        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 792        /* Clear all demodulator registers */
 793        cxd2841er_write_reg(priv, I2C_SLVX, 0x02, 0x00);
 794        usleep_range(3000, 5000);
 795        /* Set SLV-X Bank : 0x00 */
 796        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 797        /* Set demod SW reset */
 798        cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x01);
 799
 800        switch (priv->xtal) {
 801        case SONY_XTAL_20500:
 802                cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x00);
 803                break;
 804        case SONY_XTAL_24000:
 805                /* Select demod frequency */
 806                cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
 807                cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x03);
 808                break;
 809        case SONY_XTAL_41000:
 810                cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x01);
 811                break;
 812        default:
 813                dev_dbg(&priv->i2c->dev, "%s(): invalid demod xtal %d\n",
 814                                __func__, priv->xtal);
 815                return -EINVAL;
 816        }
 817
 818        /* Set demod mode */
 819        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x0a);
 820        /* Clear demod SW reset */
 821        cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x00);
 822        usleep_range(1000, 2000);
 823        /* Set SLV-T Bank : 0x00 */
 824        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 825        /* enable DSQOUT */
 826        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x1F);
 827        /* enable DSQIN */
 828        cxd2841er_write_reg(priv, I2C_SLVT, 0x9C, 0x40);
 829        /* TADC Bias On */
 830        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 831        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 832        /* SADC Bias On */
 833        cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
 834        cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
 835        cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
 836        priv->state = STATE_SLEEP_S;
 837        return 0;
 838}
 839
 840static int cxd2841er_shutdown_to_sleep_tc(struct cxd2841er_priv *priv)
 841{
 842        u8 data = 0;
 843
 844        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 845        if (priv->state != STATE_SHUTDOWN) {
 846                dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
 847                        __func__, priv->state);
 848                return -EINVAL;
 849        }
 850        /* Set SLV-X Bank : 0x00 */
 851        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 852        /* Clear all demodulator registers */
 853        cxd2841er_write_reg(priv, I2C_SLVX, 0x02, 0x00);
 854        usleep_range(3000, 5000);
 855        /* Set SLV-X Bank : 0x00 */
 856        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
 857        /* Set demod SW reset */
 858        cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x01);
 859  /* Select ADC clock mode */
 860        cxd2841er_write_reg(priv, I2C_SLVX, 0x13, 0x00);
 861
 862        switch (priv->xtal) {
 863        case SONY_XTAL_20500:
 864                data = 0x0;
 865                break;
 866        case SONY_XTAL_24000:
 867                /* Select demod frequency */
 868                cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
 869                data = 0x3;
 870                break;
 871        case SONY_XTAL_41000:
 872                cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
 873                data = 0x1;
 874                break;
 875        }
 876        cxd2841er_write_reg(priv, I2C_SLVX, 0x14, data);
 877        /* Clear demod SW reset */
 878        cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x00);
 879        usleep_range(1000, 2000);
 880        /* Set SLV-T Bank : 0x00 */
 881        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 882        /* TADC Bias On */
 883        cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
 884        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
 885        /* SADC Bias On */
 886        cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
 887        cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
 888        cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
 889        priv->state = STATE_SLEEP_TC;
 890        return 0;
 891}
 892
 893static int cxd2841er_tune_done(struct cxd2841er_priv *priv)
 894{
 895        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 896        /* Set SLV-T Bank : 0x00 */
 897        cxd2841er_write_reg(priv, I2C_SLVT, 0, 0);
 898        /* SW Reset */
 899        cxd2841er_write_reg(priv, I2C_SLVT, 0xfe, 0x01);
 900        /* Enable TS output */
 901        cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x00);
 902        return 0;
 903}
 904
 905/* Set TS parallel mode */
 906static void cxd2841er_set_ts_clock_mode(struct cxd2841er_priv *priv,
 907                                        u8 system)
 908{
 909        u8 serial_ts, ts_rate_ctrl_off, ts_in_off;
 910
 911        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 912        /* Set SLV-T Bank : 0x00 */
 913        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
 914        cxd2841er_read_reg(priv, I2C_SLVT, 0xc4, &serial_ts);
 915        cxd2841er_read_reg(priv, I2C_SLVT, 0xd3, &ts_rate_ctrl_off);
 916        cxd2841er_read_reg(priv, I2C_SLVT, 0xde, &ts_in_off);
 917        dev_dbg(&priv->i2c->dev, "%s(): ser_ts=0x%02x rate_ctrl_off=0x%02x in_off=0x%02x\n",
 918                __func__, serial_ts, ts_rate_ctrl_off, ts_in_off);
 919
 920        /*
 921         * slave    Bank    Addr    Bit    default    Name
 922         * <SLV-T>  00h     C4h     [1:0]  2'b??      OSERCKMODE
 923         */
 924        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4,
 925                ((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
 926        /*
 927         * slave    Bank    Addr    Bit    default    Name
 928         * <SLV-T>  00h     D1h     [1:0]  2'b??      OSERDUTYMODE
 929         */
 930        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd1,
 931                ((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
 932        /*
 933         * slave    Bank    Addr    Bit    default    Name
 934         * <SLV-T>  00h     D9h     [7:0]  8'h08      OTSCKPERIOD
 935         */
 936        cxd2841er_write_reg(priv, I2C_SLVT, 0xd9, 0x08);
 937        /*
 938         * Disable TS IF Clock
 939         * slave    Bank    Addr    Bit    default    Name
 940         * <SLV-T>  00h     32h     [0]    1'b1       OREG_CK_TSIF_EN
 941         */
 942        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x32, 0x00, 0x01);
 943        /*
 944         * slave    Bank    Addr    Bit    default    Name
 945         * <SLV-T>  00h     33h     [1:0]  2'b01      OREG_CKSEL_TSIF
 946         */
 947        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x33,
 948                ((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
 949        /*
 950         * Enable TS IF Clock
 951         * slave    Bank    Addr    Bit    default    Name
 952         * <SLV-T>  00h     32h     [0]    1'b1       OREG_CK_TSIF_EN
 953         */
 954        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x32, 0x01, 0x01);
 955
 956        if (system == SYS_DVBT) {
 957                /* Enable parity period for DVB-T */
 958                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
 959                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x66, 0x01, 0x01);
 960        } else if (system == SYS_DVBC_ANNEX_A) {
 961                /* Enable parity period for DVB-C */
 962                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
 963                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x66, 0x01, 0x01);
 964        }
 965}
 966
 967static u8 cxd2841er_chip_id(struct cxd2841er_priv *priv)
 968{
 969        u8 chip_id = 0;
 970
 971        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 972        if (cxd2841er_write_reg(priv, I2C_SLVT, 0, 0) == 0)
 973                cxd2841er_read_reg(priv, I2C_SLVT, 0xfd, &chip_id);
 974        else if (cxd2841er_write_reg(priv, I2C_SLVX, 0, 0) == 0)
 975                cxd2841er_read_reg(priv, I2C_SLVX, 0xfd, &chip_id);
 976
 977        return chip_id;
 978}
 979
 980static int cxd2841er_read_status_s(struct dvb_frontend *fe,
 981                                   enum fe_status *status)
 982{
 983        u8 reg = 0;
 984        struct cxd2841er_priv *priv = fe->demodulator_priv;
 985
 986        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
 987        *status = 0;
 988        if (priv->state != STATE_ACTIVE_S) {
 989                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
 990                        __func__, priv->state);
 991                return -EINVAL;
 992        }
 993        /* Set SLV-T Bank : 0xA0 */
 994        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
 995        /*
 996         *  slave     Bank      Addr      Bit      Signal name
 997         * <SLV-T>    A0h       11h       [2]      ITSLOCK
 998         */
 999        cxd2841er_read_reg(priv, I2C_SLVT, 0x11, &reg);
1000        if (reg & 0x04) {
1001                *status = FE_HAS_SIGNAL
1002                        | FE_HAS_CARRIER
1003                        | FE_HAS_VITERBI
1004                        | FE_HAS_SYNC
1005                        | FE_HAS_LOCK;
1006        }
1007        dev_dbg(&priv->i2c->dev, "%s(): result 0x%x\n", __func__, *status);
1008        return 0;
1009}
1010
1011static int cxd2841er_read_status_t_t2(struct cxd2841er_priv *priv,
1012                                      u8 *sync, u8 *tslock, u8 *unlock)
1013{
1014        u8 data = 0;
1015
1016        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1017        if (priv->state != STATE_ACTIVE_TC)
1018                return -EINVAL;
1019        if (priv->system == SYS_DVBT) {
1020                /* Set SLV-T Bank : 0x10 */
1021                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1022        } else {
1023                /* Set SLV-T Bank : 0x20 */
1024                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1025        }
1026        cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1027        if ((data & 0x07) == 0x07) {
1028                dev_dbg(&priv->i2c->dev,
1029                        "%s(): invalid hardware state detected\n", __func__);
1030                *sync = 0;
1031                *tslock = 0;
1032                *unlock = 0;
1033        } else {
1034                *sync = ((data & 0x07) == 0x6 ? 1 : 0);
1035                *tslock = ((data & 0x20) ? 1 : 0);
1036                *unlock = ((data & 0x10) ? 1 : 0);
1037        }
1038        return 0;
1039}
1040
1041static int cxd2841er_read_status_c(struct cxd2841er_priv *priv, u8 *tslock)
1042{
1043        u8 data;
1044
1045        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1046        if (priv->state != STATE_ACTIVE_TC)
1047                return -EINVAL;
1048        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1049        cxd2841er_read_reg(priv, I2C_SLVT, 0x88, &data);
1050        if ((data & 0x01) == 0) {
1051                *tslock = 0;
1052        } else {
1053                cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1054                *tslock = ((data & 0x20) ? 1 : 0);
1055        }
1056        return 0;
1057}
1058
1059static int cxd2841er_read_status_i(struct cxd2841er_priv *priv,
1060                u8 *sync, u8 *tslock, u8 *unlock)
1061{
1062        u8 data = 0;
1063
1064        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1065        if (priv->state != STATE_ACTIVE_TC)
1066                return -EINVAL;
1067        /* Set SLV-T Bank : 0x60 */
1068        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1069        cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1070        dev_dbg(&priv->i2c->dev,
1071                        "%s(): lock=0x%x\n", __func__, data);
1072        *sync = ((data & 0x02) ? 1 : 0);
1073        *tslock = ((data & 0x01) ? 1 : 0);
1074        *unlock = ((data & 0x10) ? 1 : 0);
1075        return 0;
1076}
1077
1078static int cxd2841er_read_status_tc(struct dvb_frontend *fe,
1079                                    enum fe_status *status)
1080{
1081        int ret = 0;
1082        u8 sync = 0;
1083        u8 tslock = 0;
1084        u8 unlock = 0;
1085        struct cxd2841er_priv *priv = fe->demodulator_priv;
1086
1087        *status = 0;
1088        if (priv->state == STATE_ACTIVE_TC) {
1089                if (priv->system == SYS_DVBT || priv->system == SYS_DVBT2) {
1090                        ret = cxd2841er_read_status_t_t2(
1091                                priv, &sync, &tslock, &unlock);
1092                        if (ret)
1093                                goto done;
1094                        if (unlock)
1095                                goto done;
1096                        if (sync)
1097                                *status = FE_HAS_SIGNAL |
1098                                        FE_HAS_CARRIER |
1099                                        FE_HAS_VITERBI |
1100                                        FE_HAS_SYNC;
1101                        if (tslock)
1102                                *status |= FE_HAS_LOCK;
1103                } else if (priv->system == SYS_ISDBT) {
1104                        ret = cxd2841er_read_status_i(
1105                                        priv, &sync, &tslock, &unlock);
1106                        if (ret)
1107                                goto done;
1108                        if (unlock)
1109                                goto done;
1110                        if (sync)
1111                                *status = FE_HAS_SIGNAL |
1112                                        FE_HAS_CARRIER |
1113                                        FE_HAS_VITERBI |
1114                                        FE_HAS_SYNC;
1115                        if (tslock)
1116                                *status |= FE_HAS_LOCK;
1117                } else if (priv->system == SYS_DVBC_ANNEX_A) {
1118                        ret = cxd2841er_read_status_c(priv, &tslock);
1119                        if (ret)
1120                                goto done;
1121                        if (tslock)
1122                                *status = FE_HAS_SIGNAL |
1123                                        FE_HAS_CARRIER |
1124                                        FE_HAS_VITERBI |
1125                                        FE_HAS_SYNC |
1126                                        FE_HAS_LOCK;
1127                }
1128        }
1129done:
1130        dev_dbg(&priv->i2c->dev, "%s(): status 0x%x\n", __func__, *status);
1131        return ret;
1132}
1133
1134static int cxd2841er_get_carrier_offset_s_s2(struct cxd2841er_priv *priv,
1135                                             int *offset)
1136{
1137        u8 data[3];
1138        u8 is_hs_mode;
1139        s32 cfrl_ctrlval;
1140        s32 temp_div, temp_q, temp_r;
1141
1142        if (priv->state != STATE_ACTIVE_S) {
1143                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1144                        __func__, priv->state);
1145                return -EINVAL;
1146        }
1147        /*
1148         * Get High Sampling Rate mode
1149         *  slave     Bank      Addr      Bit      Signal name
1150         * <SLV-T>    A0h       10h       [0]      ITRL_LOCK
1151         */
1152        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1153        cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data[0]);
1154        if (data[0] & 0x01) {
1155                /*
1156                 *  slave     Bank      Addr      Bit      Signal name
1157                 * <SLV-T>    A0h       50h       [4]      IHSMODE
1158                 */
1159                cxd2841er_read_reg(priv, I2C_SLVT, 0x50, &data[0]);
1160                is_hs_mode = (data[0] & 0x10 ? 1 : 0);
1161        } else {
1162                dev_dbg(&priv->i2c->dev,
1163                        "%s(): unable to detect sampling rate mode\n",
1164                        __func__);
1165                return -EINVAL;
1166        }
1167        /*
1168         *  slave     Bank      Addr      Bit      Signal name
1169         * <SLV-T>    A0h       45h       [4:0]    ICFRL_CTRLVAL[20:16]
1170         * <SLV-T>    A0h       46h       [7:0]    ICFRL_CTRLVAL[15:8]
1171         * <SLV-T>    A0h       47h       [7:0]    ICFRL_CTRLVAL[7:0]
1172         */
1173        cxd2841er_read_regs(priv, I2C_SLVT, 0x45, data, 3);
1174        cfrl_ctrlval = sign_extend32((((u32)data[0] & 0x1F) << 16) |
1175                                (((u32)data[1] & 0xFF) <<  8) |
1176                                ((u32)data[2] & 0xFF), 20);
1177        temp_div = (is_hs_mode ? 1048576 : 1572864);
1178        if (cfrl_ctrlval > 0) {
1179                temp_q = div_s64_rem(97375LL * cfrl_ctrlval,
1180                        temp_div, &temp_r);
1181        } else {
1182                temp_q = div_s64_rem(-97375LL * cfrl_ctrlval,
1183                        temp_div, &temp_r);
1184        }
1185        if (temp_r >= temp_div / 2)
1186                temp_q++;
1187        if (cfrl_ctrlval > 0)
1188                temp_q *= -1;
1189        *offset = temp_q;
1190        return 0;
1191}
1192
1193static int cxd2841er_get_carrier_offset_i(struct cxd2841er_priv *priv,
1194                                           u32 bandwidth, int *offset)
1195{
1196        u8 data[4];
1197
1198        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1199        if (priv->state != STATE_ACTIVE_TC) {
1200                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1201                        __func__, priv->state);
1202                return -EINVAL;
1203        }
1204        if (priv->system != SYS_ISDBT) {
1205                dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1206                        __func__, priv->system);
1207                return -EINVAL;
1208        }
1209        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1210        cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1211        *offset = -1 * sign_extend32(
1212                ((u32)(data[0] & 0x1F) << 24) | ((u32)data[1] << 16) |
1213                ((u32)data[2] << 8) | (u32)data[3], 29);
1214
1215        switch (bandwidth) {
1216        case 6000000:
1217                *offset = -1 * ((*offset) * 8/264);
1218                break;
1219        case 7000000:
1220                *offset = -1 * ((*offset) * 8/231);
1221                break;
1222        case 8000000:
1223                *offset = -1 * ((*offset) * 8/198);
1224                break;
1225        default:
1226                dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
1227                                __func__, bandwidth);
1228                return -EINVAL;
1229        }
1230
1231        dev_dbg(&priv->i2c->dev, "%s(): bandwidth %d offset %d\n",
1232                        __func__, bandwidth, *offset);
1233
1234        return 0;
1235}
1236
1237static int cxd2841er_get_carrier_offset_t(struct cxd2841er_priv *priv,
1238                                           u32 bandwidth, int *offset)
1239{
1240        u8 data[4];
1241
1242        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1243        if (priv->state != STATE_ACTIVE_TC) {
1244                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1245                        __func__, priv->state);
1246                return -EINVAL;
1247        }
1248        if (priv->system != SYS_DVBT) {
1249                dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1250                        __func__, priv->system);
1251                return -EINVAL;
1252        }
1253        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1254        cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1255        *offset = -1 * sign_extend32(
1256                ((u32)(data[0] & 0x1F) << 24) | ((u32)data[1] << 16) |
1257                ((u32)data[2] << 8) | (u32)data[3], 29);
1258        *offset *= (bandwidth / 1000000);
1259        *offset /= 235;
1260        return 0;
1261}
1262
1263static int cxd2841er_get_carrier_offset_t2(struct cxd2841er_priv *priv,
1264                                           u32 bandwidth, int *offset)
1265{
1266        u8 data[4];
1267
1268        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1269        if (priv->state != STATE_ACTIVE_TC) {
1270                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1271                        __func__, priv->state);
1272                return -EINVAL;
1273        }
1274        if (priv->system != SYS_DVBT2) {
1275                dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1276                        __func__, priv->system);
1277                return -EINVAL;
1278        }
1279        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1280        cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1281        *offset = -1 * sign_extend32(
1282                ((u32)(data[0] & 0x0F) << 24) | ((u32)data[1] << 16) |
1283                ((u32)data[2] << 8) | (u32)data[3], 27);
1284        switch (bandwidth) {
1285        case 1712000:
1286                *offset /= 582;
1287                break;
1288        case 5000000:
1289        case 6000000:
1290        case 7000000:
1291        case 8000000:
1292                *offset *= (bandwidth / 1000000);
1293                *offset /= 940;
1294                break;
1295        default:
1296                dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
1297                        __func__, bandwidth);
1298                return -EINVAL;
1299        }
1300        return 0;
1301}
1302
1303static int cxd2841er_get_carrier_offset_c(struct cxd2841er_priv *priv,
1304                                          int *offset)
1305{
1306        u8 data[2];
1307
1308        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1309        if (priv->state != STATE_ACTIVE_TC) {
1310                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1311                        __func__, priv->state);
1312                return -EINVAL;
1313        }
1314        if (priv->system != SYS_DVBC_ANNEX_A) {
1315                dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1316                        __func__, priv->system);
1317                return -EINVAL;
1318        }
1319        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1320        cxd2841er_read_regs(priv, I2C_SLVT, 0x15, data, sizeof(data));
1321        *offset = div_s64(41000LL * sign_extend32((((u32)data[0] & 0x3f) << 8)
1322                                                | (u32)data[1], 13), 16384);
1323        return 0;
1324}
1325
1326static int cxd2841er_read_packet_errors_c(
1327                struct cxd2841er_priv *priv, u32 *penum)
1328{
1329        u8 data[3];
1330
1331        *penum = 0;
1332        if (priv->state != STATE_ACTIVE_TC) {
1333                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1334                                __func__, priv->state);
1335                return -EINVAL;
1336        }
1337        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1338        cxd2841er_read_regs(priv, I2C_SLVT, 0xea, data, sizeof(data));
1339        if (data[2] & 0x01)
1340                *penum = ((u32)data[0] << 8) | (u32)data[1];
1341        return 0;
1342}
1343
1344static int cxd2841er_read_packet_errors_t(
1345                struct cxd2841er_priv *priv, u32 *penum)
1346{
1347        u8 data[3];
1348
1349        *penum = 0;
1350        if (priv->state != STATE_ACTIVE_TC) {
1351                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1352                        __func__, priv->state);
1353                return -EINVAL;
1354        }
1355        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1356        cxd2841er_read_regs(priv, I2C_SLVT, 0xea, data, sizeof(data));
1357        if (data[2] & 0x01)
1358                *penum = ((u32)data[0] << 8) | (u32)data[1];
1359        return 0;
1360}
1361
1362static int cxd2841er_read_packet_errors_t2(
1363                struct cxd2841er_priv *priv, u32 *penum)
1364{
1365        u8 data[3];
1366
1367        *penum = 0;
1368        if (priv->state != STATE_ACTIVE_TC) {
1369                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1370                        __func__, priv->state);
1371                return -EINVAL;
1372        }
1373        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x24);
1374        cxd2841er_read_regs(priv, I2C_SLVT, 0xfd, data, sizeof(data));
1375        if (data[0] & 0x01)
1376                *penum = ((u32)data[1] << 8) | (u32)data[2];
1377        return 0;
1378}
1379
1380static int cxd2841er_read_packet_errors_i(
1381                struct cxd2841er_priv *priv, u32 *penum)
1382{
1383        u8 data[2];
1384
1385        *penum = 0;
1386        if (priv->state != STATE_ACTIVE_TC) {
1387                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1388                                __func__, priv->state);
1389                return -EINVAL;
1390        }
1391        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1392        cxd2841er_read_regs(priv, I2C_SLVT, 0xA1, data, 1);
1393
1394        if (!(data[0] & 0x01))
1395                return 0;
1396
1397        /* Layer A */
1398        cxd2841er_read_regs(priv, I2C_SLVT, 0xA2, data, sizeof(data));
1399        *penum = ((u32)data[0] << 8) | (u32)data[1];
1400
1401        /* Layer B */
1402        cxd2841er_read_regs(priv, I2C_SLVT, 0xA4, data, sizeof(data));
1403        *penum += ((u32)data[0] << 8) | (u32)data[1];
1404
1405        /* Layer C */
1406        cxd2841er_read_regs(priv, I2C_SLVT, 0xA6, data, sizeof(data));
1407        *penum += ((u32)data[0] << 8) | (u32)data[1];
1408
1409        return 0;
1410}
1411
1412static int cxd2841er_read_ber_c(struct cxd2841er_priv *priv,
1413                u32 *bit_error, u32 *bit_count)
1414{
1415        u8 data[3];
1416        u32 bit_err, period_exp;
1417
1418        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1419        if (priv->state != STATE_ACTIVE_TC) {
1420                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1421                                __func__, priv->state);
1422                return -EINVAL;
1423        }
1424        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1425        cxd2841er_read_regs(priv, I2C_SLVT, 0x62, data, sizeof(data));
1426        if (!(data[0] & 0x80)) {
1427                dev_dbg(&priv->i2c->dev,
1428                                "%s(): no valid BER data\n", __func__);
1429                return -EINVAL;
1430        }
1431        bit_err = ((u32)(data[0] & 0x3f) << 16) |
1432                ((u32)data[1] << 8) |
1433                (u32)data[2];
1434        cxd2841er_read_reg(priv, I2C_SLVT, 0x60, data);
1435        period_exp = data[0] & 0x1f;
1436
1437        if ((period_exp <= 11) && (bit_err > (1 << period_exp) * 204 * 8)) {
1438                dev_dbg(&priv->i2c->dev,
1439                                "%s(): period_exp(%u) or bit_err(%u)  not in range. no valid BER data\n",
1440                                __func__, period_exp, bit_err);
1441                return -EINVAL;
1442        }
1443
1444        dev_dbg(&priv->i2c->dev,
1445                        "%s(): period_exp(%u) or bit_err(%u) count=%d\n",
1446                        __func__, period_exp, bit_err,
1447                        ((1 << period_exp) * 204 * 8));
1448
1449        *bit_error = bit_err;
1450        *bit_count = ((1 << period_exp) * 204 * 8);
1451
1452        return 0;
1453}
1454
1455static int cxd2841er_read_ber_i(struct cxd2841er_priv *priv,
1456                u32 *bit_error, u32 *bit_count)
1457{
1458        u8 data[3];
1459        u8 pktnum[2];
1460
1461        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1462        if (priv->state != STATE_ACTIVE_TC) {
1463                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1464                                __func__, priv->state);
1465                return -EINVAL;
1466        }
1467
1468        cxd2841er_freeze_regs(priv);
1469        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1470        cxd2841er_read_regs(priv, I2C_SLVT, 0x5B, pktnum, sizeof(pktnum));
1471        cxd2841er_read_regs(priv, I2C_SLVT, 0x16, data, sizeof(data));
1472        cxd2841er_unfreeze_regs(priv);
1473
1474        if (!pktnum[0] && !pktnum[1]) {
1475                dev_dbg(&priv->i2c->dev,
1476                                "%s(): no valid BER data\n", __func__);
1477                return -EINVAL;
1478        }
1479
1480        *bit_error = ((u32)(data[0] & 0x7F) << 16) |
1481                ((u32)data[1] << 8) | data[2];
1482        *bit_count = ((((u32)pktnum[0] << 8) | pktnum[1]) * 204 * 8);
1483        dev_dbg(&priv->i2c->dev, "%s(): bit_error=%u bit_count=%u\n",
1484                        __func__, *bit_error, *bit_count);
1485
1486        return 0;
1487}
1488
1489static int cxd2841er_mon_read_ber_s(struct cxd2841er_priv *priv,
1490                                    u32 *bit_error, u32 *bit_count)
1491{
1492        u8 data[11];
1493
1494        /* Set SLV-T Bank : 0xA0 */
1495        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1496        /*
1497         *  slave     Bank      Addr      Bit      Signal name
1498         * <SLV-T>    A0h       35h       [0]      IFVBER_VALID
1499         * <SLV-T>    A0h       36h       [5:0]    IFVBER_BITERR[21:16]
1500         * <SLV-T>    A0h       37h       [7:0]    IFVBER_BITERR[15:8]
1501         * <SLV-T>    A0h       38h       [7:0]    IFVBER_BITERR[7:0]
1502         * <SLV-T>    A0h       3Dh       [5:0]    IFVBER_BITNUM[21:16]
1503         * <SLV-T>    A0h       3Eh       [7:0]    IFVBER_BITNUM[15:8]
1504         * <SLV-T>    A0h       3Fh       [7:0]    IFVBER_BITNUM[7:0]
1505         */
1506        cxd2841er_read_regs(priv, I2C_SLVT, 0x35, data, 11);
1507        if (data[0] & 0x01) {
1508                *bit_error = ((u32)(data[1]  & 0x3F) << 16) |
1509                             ((u32)(data[2]  & 0xFF) <<  8) |
1510                             (u32)(data[3]  & 0xFF);
1511                *bit_count = ((u32)(data[8]  & 0x3F) << 16) |
1512                             ((u32)(data[9]  & 0xFF) <<  8) |
1513                             (u32)(data[10] & 0xFF);
1514                if ((*bit_count == 0) || (*bit_error > *bit_count)) {
1515                        dev_dbg(&priv->i2c->dev,
1516                                "%s(): invalid bit_error %d, bit_count %d\n",
1517                                __func__, *bit_error, *bit_count);
1518                        return -EINVAL;
1519                }
1520                return 0;
1521        }
1522        dev_dbg(&priv->i2c->dev, "%s(): no data available\n", __func__);
1523        return -EINVAL;
1524}
1525
1526
1527static int cxd2841er_mon_read_ber_s2(struct cxd2841er_priv *priv,
1528                                     u32 *bit_error, u32 *bit_count)
1529{
1530        u8 data[5];
1531        u32 period;
1532
1533        /* Set SLV-T Bank : 0xB2 */
1534        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xb2);
1535        /*
1536         *  slave     Bank      Addr      Bit      Signal name
1537         * <SLV-T>    B2h       30h       [0]      IFLBER_VALID
1538         * <SLV-T>    B2h       31h       [3:0]    IFLBER_BITERR[27:24]
1539         * <SLV-T>    B2h       32h       [7:0]    IFLBER_BITERR[23:16]
1540         * <SLV-T>    B2h       33h       [7:0]    IFLBER_BITERR[15:8]
1541         * <SLV-T>    B2h       34h       [7:0]    IFLBER_BITERR[7:0]
1542         */
1543        cxd2841er_read_regs(priv, I2C_SLVT, 0x30, data, 5);
1544        if (data[0] & 0x01) {
1545                /* Bit error count */
1546                *bit_error = ((u32)(data[1] & 0x0F) << 24) |
1547                             ((u32)(data[2] & 0xFF) << 16) |
1548                             ((u32)(data[3] & 0xFF) <<  8) |
1549                             (u32)(data[4] & 0xFF);
1550
1551                /* Set SLV-T Bank : 0xA0 */
1552                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1553                cxd2841er_read_reg(priv, I2C_SLVT, 0x7a, data);
1554                /* Measurement period */
1555                period = (u32)(1 << (data[0] & 0x0F));
1556                if (period == 0) {
1557                        dev_dbg(&priv->i2c->dev,
1558                                "%s(): period is 0\n", __func__);
1559                        return -EINVAL;
1560                }
1561                if (*bit_error > (period * 64800)) {
1562                        dev_dbg(&priv->i2c->dev,
1563                                "%s(): invalid bit_err 0x%x period 0x%x\n",
1564                                __func__, *bit_error, period);
1565                        return -EINVAL;
1566                }
1567                *bit_count = period * 64800;
1568
1569                return 0;
1570        } else {
1571                dev_dbg(&priv->i2c->dev,
1572                        "%s(): no data available\n", __func__);
1573        }
1574        return -EINVAL;
1575}
1576
1577static int cxd2841er_read_ber_t2(struct cxd2841er_priv *priv,
1578                                 u32 *bit_error, u32 *bit_count)
1579{
1580        u8 data[4];
1581        u32 period_exp, n_ldpc;
1582
1583        if (priv->state != STATE_ACTIVE_TC) {
1584                dev_dbg(&priv->i2c->dev,
1585                        "%s(): invalid state %d\n", __func__, priv->state);
1586                return -EINVAL;
1587        }
1588        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1589        cxd2841er_read_regs(priv, I2C_SLVT, 0x39, data, sizeof(data));
1590        if (!(data[0] & 0x10)) {
1591                dev_dbg(&priv->i2c->dev,
1592                        "%s(): no valid BER data\n", __func__);
1593                return -EINVAL;
1594        }
1595        *bit_error = ((u32)(data[0] & 0x0f) << 24) |
1596                     ((u32)data[1] << 16) |
1597                     ((u32)data[2] << 8) |
1598                     (u32)data[3];
1599        cxd2841er_read_reg(priv, I2C_SLVT, 0x6f, data);
1600        period_exp = data[0] & 0x0f;
1601        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x22);
1602        cxd2841er_read_reg(priv, I2C_SLVT, 0x5e, data);
1603        n_ldpc = ((data[0] & 0x03) == 0 ? 16200 : 64800);
1604        if (*bit_error > ((1U << period_exp) * n_ldpc)) {
1605                dev_dbg(&priv->i2c->dev,
1606                        "%s(): invalid BER value\n", __func__);
1607                return -EINVAL;
1608        }
1609
1610        /*
1611         * FIXME: the right thing would be to return bit_error untouched,
1612         * but, as we don't know the scale returned by the counters, let's
1613         * at least preserver BER = bit_error/bit_count.
1614         */
1615        if (period_exp >= 4) {
1616                *bit_count = (1U << (period_exp - 4)) * (n_ldpc / 200);
1617                *bit_error *= 3125ULL;
1618        } else {
1619                *bit_count = (1U << period_exp) * (n_ldpc / 200);
1620                *bit_error *= 50000ULL;
1621        }
1622        return 0;
1623}
1624
1625static int cxd2841er_read_ber_t(struct cxd2841er_priv *priv,
1626                                u32 *bit_error, u32 *bit_count)
1627{
1628        u8 data[2];
1629        u32 period;
1630
1631        if (priv->state != STATE_ACTIVE_TC) {
1632                dev_dbg(&priv->i2c->dev,
1633                        "%s(): invalid state %d\n", __func__, priv->state);
1634                return -EINVAL;
1635        }
1636        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1637        cxd2841er_read_reg(priv, I2C_SLVT, 0x39, data);
1638        if (!(data[0] & 0x01)) {
1639                dev_dbg(&priv->i2c->dev,
1640                        "%s(): no valid BER data\n", __func__);
1641                return 0;
1642        }
1643        cxd2841er_read_regs(priv, I2C_SLVT, 0x22, data, sizeof(data));
1644        *bit_error = ((u32)data[0] << 8) | (u32)data[1];
1645        cxd2841er_read_reg(priv, I2C_SLVT, 0x6f, data);
1646        period = ((data[0] & 0x07) == 0) ? 256 : (4096 << (data[0] & 0x07));
1647
1648        /*
1649         * FIXME: the right thing would be to return bit_error untouched,
1650         * but, as we don't know the scale returned by the counters, let's
1651         * at least preserver BER = bit_error/bit_count.
1652         */
1653        *bit_count = period / 128;
1654        *bit_error *= 78125ULL;
1655        return 0;
1656}
1657
1658static int cxd2841er_freeze_regs(struct cxd2841er_priv *priv)
1659{
1660        /*
1661         * Freeze registers: ensure multiple separate register reads
1662         * are from the same snapshot
1663         */
1664        cxd2841er_write_reg(priv, I2C_SLVT, 0x01, 0x01);
1665        return 0;
1666}
1667
1668static int cxd2841er_unfreeze_regs(struct cxd2841er_priv *priv)
1669{
1670        /*
1671         * un-freeze registers
1672         */
1673        cxd2841er_write_reg(priv, I2C_SLVT, 0x01, 0x00);
1674        return 0;
1675}
1676
1677static u32 cxd2841er_dvbs_read_snr(struct cxd2841er_priv *priv,
1678                u8 delsys, u32 *snr)
1679{
1680        u8 data[3];
1681        u32 res = 0, value;
1682        int min_index, max_index, index;
1683        static const struct cxd2841er_cnr_data *cn_data;
1684
1685        cxd2841er_freeze_regs(priv);
1686        /* Set SLV-T Bank : 0xA1 */
1687        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa1);
1688        /*
1689         *  slave     Bank      Addr      Bit     Signal name
1690         * <SLV-T>    A1h       10h       [0]     ICPM_QUICKRDY
1691         * <SLV-T>    A1h       11h       [4:0]   ICPM_QUICKCNDT[12:8]
1692         * <SLV-T>    A1h       12h       [7:0]   ICPM_QUICKCNDT[7:0]
1693         */
1694        cxd2841er_read_regs(priv, I2C_SLVT, 0x10, data, 3);
1695        cxd2841er_unfreeze_regs(priv);
1696
1697        if (data[0] & 0x01) {
1698                value = ((u32)(data[1] & 0x1F) << 8) | (u32)(data[2] & 0xFF);
1699                min_index = 0;
1700                if (delsys == SYS_DVBS) {
1701                        cn_data = s_cn_data;
1702                        max_index = ARRAY_SIZE(s_cn_data) - 1;
1703                } else {
1704                        cn_data = s2_cn_data;
1705                        max_index = ARRAY_SIZE(s2_cn_data) - 1;
1706                }
1707                if (value >= cn_data[min_index].value) {
1708                        res = cn_data[min_index].cnr_x1000;
1709                        goto done;
1710                }
1711                if (value <= cn_data[max_index].value) {
1712                        res = cn_data[max_index].cnr_x1000;
1713                        goto done;
1714                }
1715                while ((max_index - min_index) > 1) {
1716                        index = (max_index + min_index) / 2;
1717                        if (value == cn_data[index].value) {
1718                                res = cn_data[index].cnr_x1000;
1719                                goto done;
1720                        } else if (value > cn_data[index].value)
1721                                max_index = index;
1722                        else
1723                                min_index = index;
1724                        if ((max_index - min_index) <= 1) {
1725                                if (value == cn_data[max_index].value) {
1726                                        res = cn_data[max_index].cnr_x1000;
1727                                        goto done;
1728                                } else {
1729                                        res = cn_data[min_index].cnr_x1000;
1730                                        goto done;
1731                                }
1732                        }
1733                }
1734        } else {
1735                dev_dbg(&priv->i2c->dev,
1736                        "%s(): no data available\n", __func__);
1737                return -EINVAL;
1738        }
1739done:
1740        *snr = res;
1741        return 0;
1742}
1743
1744static uint32_t sony_log(uint32_t x)
1745{
1746        return (((10000>>8)*(intlog2(x)>>16) + LOG2_E_100X/2)/LOG2_E_100X);
1747}
1748
1749static int cxd2841er_read_snr_c(struct cxd2841er_priv *priv, u32 *snr)
1750{
1751        u32 reg;
1752        u8 data[2];
1753        enum sony_dvbc_constellation_t qam = SONY_DVBC_CONSTELLATION_16QAM;
1754
1755        *snr = 0;
1756        if (priv->state != STATE_ACTIVE_TC) {
1757                dev_dbg(&priv->i2c->dev,
1758                                "%s(): invalid state %d\n",
1759                                __func__, priv->state);
1760                return -EINVAL;
1761        }
1762
1763        cxd2841er_freeze_regs(priv);
1764        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1765        cxd2841er_read_regs(priv, I2C_SLVT, 0x19, data, 1);
1766        qam = (enum sony_dvbc_constellation_t) (data[0] & 0x07);
1767        cxd2841er_read_regs(priv, I2C_SLVT, 0x4C, data, 2);
1768        cxd2841er_unfreeze_regs(priv);
1769
1770        reg = ((u32)(data[0]&0x1f) << 8) | (u32)data[1];
1771        if (reg == 0) {
1772                dev_dbg(&priv->i2c->dev,
1773                                "%s(): reg value out of range\n", __func__);
1774                return 0;
1775        }
1776
1777        switch (qam) {
1778        case SONY_DVBC_CONSTELLATION_16QAM:
1779        case SONY_DVBC_CONSTELLATION_64QAM:
1780        case SONY_DVBC_CONSTELLATION_256QAM:
1781                /* SNR(dB) = -9.50 * ln(IREG_SNR_ESTIMATE / (24320)) */
1782                if (reg < 126)
1783                        reg = 126;
1784                *snr = -95 * (int32_t)sony_log(reg) + 95941;
1785                break;
1786        case SONY_DVBC_CONSTELLATION_32QAM:
1787        case SONY_DVBC_CONSTELLATION_128QAM:
1788                /* SNR(dB) = -8.75 * ln(IREG_SNR_ESTIMATE / (20800)) */
1789                if (reg < 69)
1790                        reg = 69;
1791                *snr = -88 * (int32_t)sony_log(reg) + 86999;
1792                break;
1793        default:
1794                return -EINVAL;
1795        }
1796
1797        return 0;
1798}
1799
1800static int cxd2841er_read_snr_t(struct cxd2841er_priv *priv, u32 *snr)
1801{
1802        u32 reg;
1803        u8 data[2];
1804
1805        *snr = 0;
1806        if (priv->state != STATE_ACTIVE_TC) {
1807                dev_dbg(&priv->i2c->dev,
1808                        "%s(): invalid state %d\n", __func__, priv->state);
1809                return -EINVAL;
1810        }
1811
1812        cxd2841er_freeze_regs(priv);
1813        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1814        cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1815        cxd2841er_unfreeze_regs(priv);
1816
1817        reg = ((u32)data[0] << 8) | (u32)data[1];
1818        if (reg == 0) {
1819                dev_dbg(&priv->i2c->dev,
1820                        "%s(): reg value out of range\n", __func__);
1821                return 0;
1822        }
1823        if (reg > 4996)
1824                reg = 4996;
1825        *snr = 100 * ((INTLOG10X100(reg) - INTLOG10X100(5350 - reg)) + 285);
1826        return 0;
1827}
1828
1829static int cxd2841er_read_snr_t2(struct cxd2841er_priv *priv, u32 *snr)
1830{
1831        u32 reg;
1832        u8 data[2];
1833
1834        *snr = 0;
1835        if (priv->state != STATE_ACTIVE_TC) {
1836                dev_dbg(&priv->i2c->dev,
1837                        "%s(): invalid state %d\n", __func__, priv->state);
1838                return -EINVAL;
1839        }
1840
1841        cxd2841er_freeze_regs(priv);
1842        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1843        cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1844        cxd2841er_unfreeze_regs(priv);
1845
1846        reg = ((u32)data[0] << 8) | (u32)data[1];
1847        if (reg == 0) {
1848                dev_dbg(&priv->i2c->dev,
1849                        "%s(): reg value out of range\n", __func__);
1850                return 0;
1851        }
1852        if (reg > 10876)
1853                reg = 10876;
1854        *snr = 100 * ((INTLOG10X100(reg) - INTLOG10X100(12600 - reg)) + 320);
1855        return 0;
1856}
1857
1858static int cxd2841er_read_snr_i(struct cxd2841er_priv *priv, u32 *snr)
1859{
1860        u32 reg;
1861        u8 data[2];
1862
1863        *snr = 0;
1864        if (priv->state != STATE_ACTIVE_TC) {
1865                dev_dbg(&priv->i2c->dev,
1866                                "%s(): invalid state %d\n", __func__,
1867                                priv->state);
1868                return -EINVAL;
1869        }
1870
1871        cxd2841er_freeze_regs(priv);
1872        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1873        cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1874        cxd2841er_unfreeze_regs(priv);
1875
1876        reg = ((u32)data[0] << 8) | (u32)data[1];
1877        if (reg == 0) {
1878                dev_dbg(&priv->i2c->dev,
1879                                "%s(): reg value out of range\n", __func__);
1880                return 0;
1881        }
1882        *snr = 10000 * (intlog10(reg) >> 24) - 9031;
1883        return 0;
1884}
1885
1886static u16 cxd2841er_read_agc_gain_c(struct cxd2841er_priv *priv,
1887                                        u8 delsys)
1888{
1889        u8 data[2];
1890
1891        cxd2841er_write_reg(
1892                priv, I2C_SLVT, 0x00, 0x40);
1893        cxd2841er_read_regs(priv, I2C_SLVT, 0x49, data, 2);
1894        dev_dbg(&priv->i2c->dev,
1895                        "%s(): AGC value=%u\n",
1896                        __func__, (((u16)data[0] & 0x0F) << 8) |
1897                        (u16)(data[1] & 0xFF));
1898        return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1899}
1900
1901static u16 cxd2841er_read_agc_gain_t_t2(struct cxd2841er_priv *priv,
1902                                        u8 delsys)
1903{
1904        u8 data[2];
1905
1906        cxd2841er_write_reg(
1907                priv, I2C_SLVT, 0x00, (delsys == SYS_DVBT ? 0x10 : 0x20));
1908        cxd2841er_read_regs(priv, I2C_SLVT, 0x26, data, 2);
1909        dev_dbg(&priv->i2c->dev,
1910                        "%s(): AGC value=%u\n",
1911                        __func__, (((u16)data[0] & 0x0F) << 8) |
1912                        (u16)(data[1] & 0xFF));
1913        return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1914}
1915
1916static u16 cxd2841er_read_agc_gain_i(struct cxd2841er_priv *priv,
1917                u8 delsys)
1918{
1919        u8 data[2];
1920
1921        cxd2841er_write_reg(
1922                        priv, I2C_SLVT, 0x00, 0x60);
1923        cxd2841er_read_regs(priv, I2C_SLVT, 0x26, data, 2);
1924
1925        dev_dbg(&priv->i2c->dev,
1926                        "%s(): AGC value=%u\n",
1927                        __func__, (((u16)data[0] & 0x0F) << 8) |
1928                        (u16)(data[1] & 0xFF));
1929        return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1930}
1931
1932static u16 cxd2841er_read_agc_gain_s(struct cxd2841er_priv *priv)
1933{
1934        u8 data[2];
1935
1936        /* Set SLV-T Bank : 0xA0 */
1937        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1938        /*
1939         *  slave     Bank      Addr      Bit       Signal name
1940         * <SLV-T>    A0h       1Fh       [4:0]     IRFAGC_GAIN[12:8]
1941         * <SLV-T>    A0h       20h       [7:0]     IRFAGC_GAIN[7:0]
1942         */
1943        cxd2841er_read_regs(priv, I2C_SLVT, 0x1f, data, 2);
1944        return ((((u16)data[0] & 0x1F) << 8) | (u16)(data[1] & 0xFF)) << 3;
1945}
1946
1947static void cxd2841er_read_ber(struct dvb_frontend *fe)
1948{
1949        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1950        struct cxd2841er_priv *priv = fe->demodulator_priv;
1951        u32 ret, bit_error = 0, bit_count = 0;
1952
1953        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1954        switch (p->delivery_system) {
1955        case SYS_DVBC_ANNEX_A:
1956        case SYS_DVBC_ANNEX_B:
1957        case SYS_DVBC_ANNEX_C:
1958                ret = cxd2841er_read_ber_c(priv, &bit_error, &bit_count);
1959                break;
1960        case SYS_ISDBT:
1961                ret = cxd2841er_read_ber_i(priv, &bit_error, &bit_count);
1962                break;
1963        case SYS_DVBS:
1964                ret = cxd2841er_mon_read_ber_s(priv, &bit_error, &bit_count);
1965                break;
1966        case SYS_DVBS2:
1967                ret = cxd2841er_mon_read_ber_s2(priv, &bit_error, &bit_count);
1968                break;
1969        case SYS_DVBT:
1970                ret = cxd2841er_read_ber_t(priv, &bit_error, &bit_count);
1971                break;
1972        case SYS_DVBT2:
1973                ret = cxd2841er_read_ber_t2(priv, &bit_error, &bit_count);
1974                break;
1975        default:
1976                p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1977                p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1978                return;
1979        }
1980
1981        if (!ret) {
1982                p->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
1983                p->post_bit_error.stat[0].uvalue += bit_error;
1984                p->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
1985                p->post_bit_count.stat[0].uvalue += bit_count;
1986        } else {
1987                p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1988                p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1989        }
1990}
1991
1992static void cxd2841er_read_signal_strength(struct dvb_frontend *fe)
1993{
1994        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1995        struct cxd2841er_priv *priv = fe->demodulator_priv;
1996        s32 strength;
1997
1998        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1999        switch (p->delivery_system) {
2000        case SYS_DVBT:
2001        case SYS_DVBT2:
2002                strength = cxd2841er_read_agc_gain_t_t2(priv,
2003                                                        p->delivery_system);
2004                p->strength.stat[0].scale = FE_SCALE_DECIBEL;
2005                /* Formula was empirically determinated @ 410 MHz */
2006                p->strength.stat[0].uvalue = strength * 366 / 100 - 89520;
2007                break;  /* Code moved out of the function */
2008        case SYS_DVBC_ANNEX_A:
2009        case SYS_DVBC_ANNEX_B:
2010        case SYS_DVBC_ANNEX_C:
2011                strength = cxd2841er_read_agc_gain_c(priv,
2012                                                        p->delivery_system);
2013                p->strength.stat[0].scale = FE_SCALE_DECIBEL;
2014                /*
2015                 * Formula was empirically determinated via linear regression,
2016                 * using frequencies: 175 MHz, 410 MHz and 800 MHz, and a
2017                 * stream modulated with QAM64
2018                 */
2019                p->strength.stat[0].uvalue = strength * 4045 / 1000 - 85224;
2020                break;
2021        case SYS_ISDBT:
2022                strength = cxd2841er_read_agc_gain_i(priv, p->delivery_system);
2023                p->strength.stat[0].scale = FE_SCALE_DECIBEL;
2024                /*
2025                 * Formula was empirically determinated via linear regression,
2026                 * using frequencies: 175 MHz, 410 MHz and 800 MHz.
2027                 */
2028                p->strength.stat[0].uvalue = strength * 3775 / 1000 - 90185;
2029                break;
2030        case SYS_DVBS:
2031        case SYS_DVBS2:
2032                strength = 65535 - cxd2841er_read_agc_gain_s(priv);
2033                p->strength.stat[0].scale = FE_SCALE_RELATIVE;
2034                p->strength.stat[0].uvalue = strength;
2035                break;
2036        default:
2037                p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2038                break;
2039        }
2040}
2041
2042static void cxd2841er_read_snr(struct dvb_frontend *fe)
2043{
2044        u32 tmp = 0;
2045        int ret = 0;
2046        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
2047        struct cxd2841er_priv *priv = fe->demodulator_priv;
2048
2049        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2050        switch (p->delivery_system) {
2051        case SYS_DVBC_ANNEX_A:
2052        case SYS_DVBC_ANNEX_B:
2053        case SYS_DVBC_ANNEX_C:
2054                ret = cxd2841er_read_snr_c(priv, &tmp);
2055                break;
2056        case SYS_DVBT:
2057                ret = cxd2841er_read_snr_t(priv, &tmp);
2058                break;
2059        case SYS_DVBT2:
2060                ret = cxd2841er_read_snr_t2(priv, &tmp);
2061                break;
2062        case SYS_ISDBT:
2063                ret = cxd2841er_read_snr_i(priv, &tmp);
2064                break;
2065        case SYS_DVBS:
2066        case SYS_DVBS2:
2067                ret = cxd2841er_dvbs_read_snr(priv, p->delivery_system, &tmp);
2068                break;
2069        default:
2070                dev_dbg(&priv->i2c->dev, "%s(): unknown delivery system %d\n",
2071                        __func__, p->delivery_system);
2072                p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2073                return;
2074        }
2075
2076        dev_dbg(&priv->i2c->dev, "%s(): snr=%d\n",
2077                        __func__, (int32_t)tmp);
2078
2079        if (!ret) {
2080                p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
2081                p->cnr.stat[0].svalue = tmp;
2082        } else {
2083                p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2084        }
2085}
2086
2087static void cxd2841er_read_ucblocks(struct dvb_frontend *fe)
2088{
2089        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
2090        struct cxd2841er_priv *priv = fe->demodulator_priv;
2091        u32 ucblocks = 0;
2092
2093        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2094        switch (p->delivery_system) {
2095        case SYS_DVBC_ANNEX_A:
2096        case SYS_DVBC_ANNEX_B:
2097        case SYS_DVBC_ANNEX_C:
2098                cxd2841er_read_packet_errors_c(priv, &ucblocks);
2099                break;
2100        case SYS_DVBT:
2101                cxd2841er_read_packet_errors_t(priv, &ucblocks);
2102                break;
2103        case SYS_DVBT2:
2104                cxd2841er_read_packet_errors_t2(priv, &ucblocks);
2105                break;
2106        case SYS_ISDBT:
2107                cxd2841er_read_packet_errors_i(priv, &ucblocks);
2108                break;
2109        default:
2110                p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2111                return;
2112        }
2113        dev_dbg(&priv->i2c->dev, "%s() ucblocks=%u\n", __func__, ucblocks);
2114
2115        p->block_error.stat[0].scale = FE_SCALE_COUNTER;
2116        p->block_error.stat[0].uvalue = ucblocks;
2117}
2118
2119static int cxd2841er_dvbt2_set_profile(
2120        struct cxd2841er_priv *priv, enum cxd2841er_dvbt2_profile_t profile)
2121{
2122        u8 tune_mode;
2123        u8 seq_not2d_time;
2124
2125        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2126        switch (profile) {
2127        case DVBT2_PROFILE_BASE:
2128                tune_mode = 0x01;
2129                /* Set early unlock time */
2130                seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x0E:0x0C;
2131                break;
2132        case DVBT2_PROFILE_LITE:
2133                tune_mode = 0x05;
2134                /* Set early unlock time */
2135                seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x2E:0x28;
2136                break;
2137        case DVBT2_PROFILE_ANY:
2138                tune_mode = 0x00;
2139                /* Set early unlock time */
2140                seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x2E:0x28;
2141                break;
2142        default:
2143                return -EINVAL;
2144        }
2145        /* Set SLV-T Bank : 0x2E */
2146        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2e);
2147        /* Set profile and tune mode */
2148        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x10, tune_mode, 0x07);
2149        /* Set SLV-T Bank : 0x2B */
2150        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
2151        /* Set early unlock detection time */
2152        cxd2841er_write_reg(priv, I2C_SLVT, 0x9d, seq_not2d_time);
2153        return 0;
2154}
2155
2156static int cxd2841er_dvbt2_set_plp_config(struct cxd2841er_priv *priv,
2157                                          u8 is_auto, u8 plp_id)
2158{
2159        if (is_auto) {
2160                dev_dbg(&priv->i2c->dev,
2161                        "%s() using auto PLP selection\n", __func__);
2162        } else {
2163                dev_dbg(&priv->i2c->dev,
2164                        "%s() using manual PLP selection, ID %d\n",
2165                        __func__, plp_id);
2166        }
2167        /* Set SLV-T Bank : 0x23 */
2168        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x23);
2169        if (!is_auto) {
2170                /* Manual PLP selection mode. Set the data PLP Id. */
2171                cxd2841er_write_reg(priv, I2C_SLVT, 0xaf, plp_id);
2172        }
2173        /* Auto PLP select (Scanning mode = 0x00). Data PLP select = 0x01. */
2174        cxd2841er_write_reg(priv, I2C_SLVT, 0xad, (is_auto ? 0x00 : 0x01));
2175        return 0;
2176}
2177
2178static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
2179                                                u32 bandwidth)
2180{
2181        u32 iffreq, ifhz;
2182        u8 data[MAX_WRITE_REGSIZE];
2183
2184        static const uint8_t nominalRate8bw[3][5] = {
2185                /* TRCG Nominal Rate [37:0] */
2186                {0x11, 0xF0, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2187                {0x15, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2188                {0x11, 0xF0, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2189        };
2190
2191        static const uint8_t nominalRate7bw[3][5] = {
2192                /* TRCG Nominal Rate [37:0] */
2193                {0x14, 0x80, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2194                {0x18, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2195                {0x14, 0x80, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2196        };
2197
2198        static const uint8_t nominalRate6bw[3][5] = {
2199                /* TRCG Nominal Rate [37:0] */
2200                {0x17, 0xEA, 0xAA, 0xAA, 0xAA}, /* 20.5MHz XTal */
2201                {0x1C, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2202                {0x17, 0xEA, 0xAA, 0xAA, 0xAA}  /* 41MHz XTal */
2203        };
2204
2205        static const uint8_t nominalRate5bw[3][5] = {
2206                /* TRCG Nominal Rate [37:0] */
2207                {0x1C, 0xB3, 0x33, 0x33, 0x33}, /* 20.5MHz XTal */
2208                {0x21, 0x99, 0x99, 0x99, 0x99}, /* 24MHz XTal */
2209                {0x1C, 0xB3, 0x33, 0x33, 0x33}  /* 41MHz XTal */
2210        };
2211
2212        static const uint8_t nominalRate17bw[3][5] = {
2213                /* TRCG Nominal Rate [37:0] */
2214                {0x58, 0xE2, 0xAF, 0xE0, 0xBC}, /* 20.5MHz XTal */
2215                {0x68, 0x0F, 0xA2, 0x32, 0xD0}, /* 24MHz XTal */
2216                {0x58, 0xE2, 0xAF, 0xE0, 0xBC}  /* 41MHz XTal */
2217        };
2218
2219        static const uint8_t itbCoef8bw[3][14] = {
2220                {0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA,
2221                        0x23, 0xA9, 0x1F, 0xA8, 0x2C, 0xC8}, /* 20.5MHz XTal */
2222                {0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1,
2223                        0x29, 0xA5, 0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz XTal   */
2224                {0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA,
2225                        0x23, 0xA9, 0x1F, 0xA8, 0x2C, 0xC8}  /* 41MHz XTal   */
2226        };
2227
2228        static const uint8_t itbCoef7bw[3][14] = {
2229                {0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6,
2230                        0x29, 0xB0, 0x26, 0xA9, 0x21, 0xA5}, /* 20.5MHz XTal */
2231                {0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0,
2232                        0x29, 0xA2, 0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz XTal   */
2233                {0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6,
2234                        0x29, 0xB0, 0x26, 0xA9, 0x21, 0xA5}  /* 41MHz XTal   */
2235        };
2236
2237        static const uint8_t itbCoef6bw[3][14] = {
2238                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2239                        0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2240                {0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E,
2241                        0x29, 0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2242                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2243                        0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2244        };
2245
2246        static const uint8_t itbCoef5bw[3][14] = {
2247                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2248                        0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2249                {0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E,
2250                        0x29, 0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2251                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2252                        0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2253        };
2254
2255        static const uint8_t itbCoef17bw[3][14] = {
2256                {0x25, 0xA0, 0x36, 0x8D, 0x2E, 0x94, 0x28, 0x9B,
2257                        0x32, 0x90, 0x2C, 0x9D, 0x29, 0x99}, /* 20.5MHz XTal */
2258                {0x33, 0x8E, 0x2B, 0x97, 0x2D, 0x95, 0x37, 0x8B,
2259                        0x30, 0x97, 0x2D, 0x9A, 0x21, 0xA4}, /* 24MHz XTal   */
2260                {0x25, 0xA0, 0x36, 0x8D, 0x2E, 0x94, 0x28, 0x9B,
2261                        0x32, 0x90, 0x2C, 0x9D, 0x29, 0x99}  /* 41MHz XTal   */
2262        };
2263
2264        /* Set SLV-T Bank : 0x20 */
2265        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
2266
2267        switch (bandwidth) {
2268        case 8000000:
2269                /* <Timing Recovery setting> */
2270                cxd2841er_write_regs(priv, I2C_SLVT,
2271                                0x9F, nominalRate8bw[priv->xtal], 5);
2272
2273                /* Set SLV-T Bank : 0x27 */
2274                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2275                cxd2841er_set_reg_bits(priv, I2C_SLVT,
2276                                0x7a, 0x00, 0x0f);
2277
2278                /* Set SLV-T Bank : 0x10 */
2279                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2280
2281                /* Group delay equaliser settings for
2282                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2283                 */
2284                if (priv->flags & CXD2841ER_ASCOT)
2285                        cxd2841er_write_regs(priv, I2C_SLVT,
2286                                0xA6, itbCoef8bw[priv->xtal], 14);
2287                /* <IF freq setting> */
2288                ifhz = cxd2841er_get_if_hz(priv, 4800000);
2289                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2290                data[0] = (u8) ((iffreq >> 16) & 0xff);
2291                data[1] = (u8)((iffreq >> 8) & 0xff);
2292                data[2] = (u8)(iffreq & 0xff);
2293                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2294                /* System bandwidth setting */
2295                cxd2841er_set_reg_bits(
2296                                priv, I2C_SLVT, 0xD7, 0x00, 0x07);
2297                break;
2298        case 7000000:
2299                /* <Timing Recovery setting> */
2300                cxd2841er_write_regs(priv, I2C_SLVT,
2301                                0x9F, nominalRate7bw[priv->xtal], 5);
2302
2303                /* Set SLV-T Bank : 0x27 */
2304                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2305                cxd2841er_set_reg_bits(priv, I2C_SLVT,
2306                                0x7a, 0x00, 0x0f);
2307
2308                /* Set SLV-T Bank : 0x10 */
2309                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2310
2311                /* Group delay equaliser settings for
2312                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2313                 */
2314                if (priv->flags & CXD2841ER_ASCOT)
2315                        cxd2841er_write_regs(priv, I2C_SLVT,
2316                                0xA6, itbCoef7bw[priv->xtal], 14);
2317                /* <IF freq setting> */
2318                ifhz = cxd2841er_get_if_hz(priv, 4200000);
2319                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2320                data[0] = (u8) ((iffreq >> 16) & 0xff);
2321                data[1] = (u8)((iffreq >> 8) & 0xff);
2322                data[2] = (u8)(iffreq & 0xff);
2323                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2324                /* System bandwidth setting */
2325                cxd2841er_set_reg_bits(
2326                                priv, I2C_SLVT, 0xD7, 0x02, 0x07);
2327                break;
2328        case 6000000:
2329                /* <Timing Recovery setting> */
2330                cxd2841er_write_regs(priv, I2C_SLVT,
2331                                0x9F, nominalRate6bw[priv->xtal], 5);
2332
2333                /* Set SLV-T Bank : 0x27 */
2334                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2335                cxd2841er_set_reg_bits(priv, I2C_SLVT,
2336                                0x7a, 0x00, 0x0f);
2337
2338                /* Set SLV-T Bank : 0x10 */
2339                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2340
2341                /* Group delay equaliser settings for
2342                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2343                 */
2344                if (priv->flags & CXD2841ER_ASCOT)
2345                        cxd2841er_write_regs(priv, I2C_SLVT,
2346                                0xA6, itbCoef6bw[priv->xtal], 14);
2347                /* <IF freq setting> */
2348                ifhz = cxd2841er_get_if_hz(priv, 3600000);
2349                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2350                data[0] = (u8) ((iffreq >> 16) & 0xff);
2351                data[1] = (u8)((iffreq >> 8) & 0xff);
2352                data[2] = (u8)(iffreq & 0xff);
2353                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2354                /* System bandwidth setting */
2355                cxd2841er_set_reg_bits(
2356                                priv, I2C_SLVT, 0xD7, 0x04, 0x07);
2357                break;
2358        case 5000000:
2359                /* <Timing Recovery setting> */
2360                cxd2841er_write_regs(priv, I2C_SLVT,
2361                                0x9F, nominalRate5bw[priv->xtal], 5);
2362
2363                /* Set SLV-T Bank : 0x27 */
2364                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2365                cxd2841er_set_reg_bits(priv, I2C_SLVT,
2366                                0x7a, 0x00, 0x0f);
2367
2368                /* Set SLV-T Bank : 0x10 */
2369                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2370
2371                /* Group delay equaliser settings for
2372                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2373                 */
2374                if (priv->flags & CXD2841ER_ASCOT)
2375                        cxd2841er_write_regs(priv, I2C_SLVT,
2376                                0xA6, itbCoef5bw[priv->xtal], 14);
2377                /* <IF freq setting> */
2378                ifhz = cxd2841er_get_if_hz(priv, 3600000);
2379                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2380                data[0] = (u8) ((iffreq >> 16) & 0xff);
2381                data[1] = (u8)((iffreq >> 8) & 0xff);
2382                data[2] = (u8)(iffreq & 0xff);
2383                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2384                /* System bandwidth setting */
2385                cxd2841er_set_reg_bits(
2386                                priv, I2C_SLVT, 0xD7, 0x06, 0x07);
2387                break;
2388        case 1712000:
2389                /* <Timing Recovery setting> */
2390                cxd2841er_write_regs(priv, I2C_SLVT,
2391                                0x9F, nominalRate17bw[priv->xtal], 5);
2392
2393                /* Set SLV-T Bank : 0x27 */
2394                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2395                cxd2841er_set_reg_bits(priv, I2C_SLVT,
2396                                0x7a, 0x03, 0x0f);
2397
2398                /* Set SLV-T Bank : 0x10 */
2399                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2400
2401                /* Group delay equaliser settings for
2402                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2403                 */
2404                if (priv->flags & CXD2841ER_ASCOT)
2405                        cxd2841er_write_regs(priv, I2C_SLVT,
2406                                0xA6, itbCoef17bw[priv->xtal], 14);
2407                /* <IF freq setting> */
2408                ifhz = cxd2841er_get_if_hz(priv, 3500000);
2409                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2410                data[0] = (u8) ((iffreq >> 16) & 0xff);
2411                data[1] = (u8)((iffreq >> 8) & 0xff);
2412                data[2] = (u8)(iffreq & 0xff);
2413                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2414                /* System bandwidth setting */
2415                cxd2841er_set_reg_bits(
2416                                priv, I2C_SLVT, 0xD7, 0x03, 0x07);
2417                break;
2418        default:
2419                return -EINVAL;
2420        }
2421        return 0;
2422}
2423
2424static int cxd2841er_sleep_tc_to_active_t_band(
2425                struct cxd2841er_priv *priv, u32 bandwidth)
2426{
2427        u8 data[MAX_WRITE_REGSIZE];
2428        u32 iffreq, ifhz;
2429        static const u8 nominalRate8bw[3][5] = {
2430                /* TRCG Nominal Rate [37:0] */
2431                {0x11, 0xF0, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2432                {0x15, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2433                {0x11, 0xF0, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2434        };
2435        static const u8 nominalRate7bw[3][5] = {
2436                /* TRCG Nominal Rate [37:0] */
2437                {0x14, 0x80, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2438                {0x18, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2439                {0x14, 0x80, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2440        };
2441        static const u8 nominalRate6bw[3][5] = {
2442                /* TRCG Nominal Rate [37:0] */
2443                {0x17, 0xEA, 0xAA, 0xAA, 0xAA}, /* 20.5MHz XTal */
2444                {0x1C, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2445                {0x17, 0xEA, 0xAA, 0xAA, 0xAA}  /* 41MHz XTal */
2446        };
2447        static const u8 nominalRate5bw[3][5] = {
2448                /* TRCG Nominal Rate [37:0] */
2449                {0x1C, 0xB3, 0x33, 0x33, 0x33}, /* 20.5MHz XTal */
2450                {0x21, 0x99, 0x99, 0x99, 0x99}, /* 24MHz XTal */
2451                {0x1C, 0xB3, 0x33, 0x33, 0x33}  /* 41MHz XTal */
2452        };
2453
2454        static const u8 itbCoef8bw[3][14] = {
2455                {0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA, 0x23, 0xA9,
2456                        0x1F, 0xA8, 0x2C, 0xC8}, /* 20.5MHz XTal */
2457                {0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1, 0x29, 0xA5,
2458                        0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz XTal   */
2459                {0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA, 0x23, 0xA9,
2460                        0x1F, 0xA8, 0x2C, 0xC8}  /* 41MHz XTal   */
2461        };
2462        static const u8 itbCoef7bw[3][14] = {
2463                {0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6, 0x29, 0xB0,
2464                        0x26, 0xA9, 0x21, 0xA5}, /* 20.5MHz XTal */
2465                {0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0, 0x29, 0xA2,
2466                        0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz XTal   */
2467                {0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6, 0x29, 0xB0,
2468                        0x26, 0xA9, 0x21, 0xA5}  /* 41MHz XTal   */
2469        };
2470        static const u8 itbCoef6bw[3][14] = {
2471                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2472                        0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2473                {0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29, 0xA4,
2474                        0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2475                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2476                        0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2477        };
2478        static const u8 itbCoef5bw[3][14] = {
2479                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2480                        0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2481                {0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29, 0xA4,
2482                        0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2483                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2484                        0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2485        };
2486
2487        /* Set SLV-T Bank : 0x13 */
2488        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
2489        /* Echo performance optimization setting */
2490        data[0] = 0x01;
2491        data[1] = 0x14;
2492        cxd2841er_write_regs(priv, I2C_SLVT, 0x9C, data, 2);
2493
2494        /* Set SLV-T Bank : 0x10 */
2495        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2496
2497        switch (bandwidth) {
2498        case 8000000:
2499                /* <Timing Recovery setting> */
2500                cxd2841er_write_regs(priv, I2C_SLVT,
2501                                0x9F, nominalRate8bw[priv->xtal], 5);
2502                /* Group delay equaliser settings for
2503                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2504                */
2505                if (priv->flags & CXD2841ER_ASCOT)
2506                        cxd2841er_write_regs(priv, I2C_SLVT,
2507                                0xA6, itbCoef8bw[priv->xtal], 14);
2508                /* <IF freq setting> */
2509                ifhz = cxd2841er_get_if_hz(priv, 4800000);
2510                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2511                data[0] = (u8) ((iffreq >> 16) & 0xff);
2512                data[1] = (u8)((iffreq >> 8) & 0xff);
2513                data[2] = (u8)(iffreq & 0xff);
2514                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2515                /* System bandwidth setting */
2516                cxd2841er_set_reg_bits(
2517                        priv, I2C_SLVT, 0xD7, 0x00, 0x07);
2518
2519                /* Demod core latency setting */
2520                if (priv->xtal == SONY_XTAL_24000) {
2521                        data[0] = 0x15;
2522                        data[1] = 0x28;
2523                } else {
2524                        data[0] = 0x01;
2525                        data[1] = 0xE0;
2526                }
2527                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2528
2529                /* Notch filter setting */
2530                data[0] = 0x01;
2531                data[1] = 0x02;
2532                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2533                cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2534                break;
2535        case 7000000:
2536                /* <Timing Recovery setting> */
2537                cxd2841er_write_regs(priv, I2C_SLVT,
2538                                0x9F, nominalRate7bw[priv->xtal], 5);
2539                /* Group delay equaliser settings for
2540                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2541                */
2542                if (priv->flags & CXD2841ER_ASCOT)
2543                        cxd2841er_write_regs(priv, I2C_SLVT,
2544                                0xA6, itbCoef7bw[priv->xtal], 14);
2545                /* <IF freq setting> */
2546                ifhz = cxd2841er_get_if_hz(priv, 4200000);
2547                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2548                data[0] = (u8) ((iffreq >> 16) & 0xff);
2549                data[1] = (u8)((iffreq >> 8) & 0xff);
2550                data[2] = (u8)(iffreq & 0xff);
2551                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2552                /* System bandwidth setting */
2553                cxd2841er_set_reg_bits(
2554                        priv, I2C_SLVT, 0xD7, 0x02, 0x07);
2555
2556                /* Demod core latency setting */
2557                if (priv->xtal == SONY_XTAL_24000) {
2558                        data[0] = 0x1F;
2559                        data[1] = 0xF8;
2560                } else {
2561                        data[0] = 0x12;
2562                        data[1] = 0xF8;
2563                }
2564                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2565
2566                /* Notch filter setting */
2567                data[0] = 0x00;
2568                data[1] = 0x03;
2569                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2570                cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2571                break;
2572        case 6000000:
2573                /* <Timing Recovery setting> */
2574                cxd2841er_write_regs(priv, I2C_SLVT,
2575                                0x9F, nominalRate6bw[priv->xtal], 5);
2576                /* Group delay equaliser settings for
2577                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2578                */
2579                if (priv->flags & CXD2841ER_ASCOT)
2580                        cxd2841er_write_regs(priv, I2C_SLVT,
2581                                0xA6, itbCoef6bw[priv->xtal], 14);
2582                /* <IF freq setting> */
2583                ifhz = cxd2841er_get_if_hz(priv, 3600000);
2584                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2585                data[0] = (u8) ((iffreq >> 16) & 0xff);
2586                data[1] = (u8)((iffreq >> 8) & 0xff);
2587                data[2] = (u8)(iffreq & 0xff);
2588                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2589                /* System bandwidth setting */
2590                cxd2841er_set_reg_bits(
2591                        priv, I2C_SLVT, 0xD7, 0x04, 0x07);
2592
2593                /* Demod core latency setting */
2594                if (priv->xtal == SONY_XTAL_24000) {
2595                        data[0] = 0x25;
2596                        data[1] = 0x4C;
2597                } else {
2598                        data[0] = 0x1F;
2599                        data[1] = 0xDC;
2600                }
2601                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2602
2603                /* Notch filter setting */
2604                data[0] = 0x00;
2605                data[1] = 0x03;
2606                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2607                cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2608                break;
2609        case 5000000:
2610                /* <Timing Recovery setting> */
2611                cxd2841er_write_regs(priv, I2C_SLVT,
2612                                0x9F, nominalRate5bw[priv->xtal], 5);
2613                /* Group delay equaliser settings for
2614                 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2615                */
2616                if (priv->flags & CXD2841ER_ASCOT)
2617                        cxd2841er_write_regs(priv, I2C_SLVT,
2618                                0xA6, itbCoef5bw[priv->xtal], 14);
2619                /* <IF freq setting> */
2620                ifhz = cxd2841er_get_if_hz(priv, 3600000);
2621                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2622                data[0] = (u8) ((iffreq >> 16) & 0xff);
2623                data[1] = (u8)((iffreq >> 8) & 0xff);
2624                data[2] = (u8)(iffreq & 0xff);
2625                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2626                /* System bandwidth setting */
2627                cxd2841er_set_reg_bits(
2628                        priv, I2C_SLVT, 0xD7, 0x06, 0x07);
2629
2630                /* Demod core latency setting */
2631                if (priv->xtal == SONY_XTAL_24000) {
2632                        data[0] = 0x2C;
2633                        data[1] = 0xC2;
2634                } else {
2635                        data[0] = 0x26;
2636                        data[1] = 0x3C;
2637                }
2638                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2639
2640                /* Notch filter setting */
2641                data[0] = 0x00;
2642                data[1] = 0x03;
2643                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2644                cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2645                break;
2646        }
2647
2648        return 0;
2649}
2650
2651static int cxd2841er_sleep_tc_to_active_i_band(
2652                struct cxd2841er_priv *priv, u32 bandwidth)
2653{
2654        u32 iffreq, ifhz;
2655        u8 data[3];
2656
2657        /* TRCG Nominal Rate */
2658        static const u8 nominalRate8bw[3][5] = {
2659                {0x00, 0x00, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2660                {0x11, 0xB8, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2661                {0x00, 0x00, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2662        };
2663
2664        static const u8 nominalRate7bw[3][5] = {
2665                {0x00, 0x00, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2666                {0x14, 0x40, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2667                {0x00, 0x00, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2668        };
2669
2670        static const u8 nominalRate6bw[3][5] = {
2671                {0x14, 0x2E, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2672                {0x17, 0xA0, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2673                {0x14, 0x2E, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2674        };
2675
2676        static const u8 itbCoef8bw[3][14] = {
2677                {0x00}, /* 20.5MHz XTal */
2678                {0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1, 0x29,
2679                        0xA5, 0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz Xtal */
2680                {0x0}, /* 41MHz XTal   */
2681        };
2682
2683        static const u8 itbCoef7bw[3][14] = {
2684                {0x00}, /* 20.5MHz XTal */
2685                {0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0, 0x29,
2686                        0xA2, 0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz Xtal */
2687                {0x00}, /* 41MHz XTal   */
2688        };
2689
2690        static const u8 itbCoef6bw[3][14] = {
2691                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00,
2692                        0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2693                {0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29,
2694                        0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz Xtal   */
2695                {0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00,
2696                        0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 41MHz XTal   */
2697        };
2698
2699        dev_dbg(&priv->i2c->dev, "%s() bandwidth=%u\n", __func__, bandwidth);
2700        /* Set SLV-T Bank : 0x10 */
2701        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2702
2703        /*  20.5/41MHz Xtal support is not available
2704         *  on ISDB-T 7MHzBW and 8MHzBW
2705        */
2706        if (priv->xtal != SONY_XTAL_24000 && bandwidth > 6000000) {
2707                dev_err(&priv->i2c->dev,
2708                        "%s(): bandwidth %d supported only for 24MHz xtal\n",
2709                        __func__, bandwidth);
2710                return -EINVAL;
2711        }
2712
2713        switch (bandwidth) {
2714        case 8000000:
2715                /* TRCG Nominal Rate */
2716                cxd2841er_write_regs(priv, I2C_SLVT,
2717                                0x9F, nominalRate8bw[priv->xtal], 5);
2718                /*  Group delay equaliser settings for ASCOT tuners optimized */
2719                if (priv->flags & CXD2841ER_ASCOT)
2720                        cxd2841er_write_regs(priv, I2C_SLVT,
2721                                0xA6, itbCoef8bw[priv->xtal], 14);
2722
2723                /* IF freq setting */
2724                ifhz = cxd2841er_get_if_hz(priv, 4750000);
2725                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2726                data[0] = (u8) ((iffreq >> 16) & 0xff);
2727                data[1] = (u8)((iffreq >> 8) & 0xff);
2728                data[2] = (u8)(iffreq & 0xff);
2729                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2730
2731                /* System bandwidth setting */
2732                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x0, 0x7);
2733
2734                /* Demod core latency setting */
2735                data[0] = 0x13;
2736                data[1] = 0xFC;
2737                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2738
2739                /* Acquisition optimization setting */
2740                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2741                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x03, 0x07);
2742                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2743                cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x03);
2744                break;
2745        case 7000000:
2746                /* TRCG Nominal Rate */
2747                cxd2841er_write_regs(priv, I2C_SLVT,
2748                                0x9F, nominalRate7bw[priv->xtal], 5);
2749                /*  Group delay equaliser settings for ASCOT tuners optimized */
2750                if (priv->flags & CXD2841ER_ASCOT)
2751                        cxd2841er_write_regs(priv, I2C_SLVT,
2752                                0xA6, itbCoef7bw[priv->xtal], 14);
2753
2754                /* IF freq setting */
2755                ifhz = cxd2841er_get_if_hz(priv, 4150000);
2756                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2757                data[0] = (u8) ((iffreq >> 16) & 0xff);
2758                data[1] = (u8)((iffreq >> 8) & 0xff);
2759                data[2] = (u8)(iffreq & 0xff);
2760                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2761
2762                /* System bandwidth setting */
2763                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x02, 0x7);
2764
2765                /* Demod core latency setting */
2766                data[0] = 0x1A;
2767                data[1] = 0xFA;
2768                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2769
2770                /* Acquisition optimization setting */
2771                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2772                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x03, 0x07);
2773                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2774                cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x02);
2775                break;
2776        case 6000000:
2777                /* TRCG Nominal Rate */
2778                cxd2841er_write_regs(priv, I2C_SLVT,
2779                                0x9F, nominalRate6bw[priv->xtal], 5);
2780                /*  Group delay equaliser settings for ASCOT tuners optimized */
2781                if (priv->flags & CXD2841ER_ASCOT)
2782                        cxd2841er_write_regs(priv, I2C_SLVT,
2783                                0xA6, itbCoef6bw[priv->xtal], 14);
2784
2785                /* IF freq setting */
2786                ifhz = cxd2841er_get_if_hz(priv, 3550000);
2787                iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2788                data[0] = (u8) ((iffreq >> 16) & 0xff);
2789                data[1] = (u8)((iffreq >> 8) & 0xff);
2790                data[2] = (u8)(iffreq & 0xff);
2791                cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2792
2793                /* System bandwidth setting */
2794                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x04, 0x7);
2795
2796                /* Demod core latency setting */
2797                if (priv->xtal == SONY_XTAL_24000) {
2798                        data[0] = 0x1F;
2799                        data[1] = 0x79;
2800                } else {
2801                        data[0] = 0x1A;
2802                        data[1] = 0xE2;
2803                }
2804                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2805
2806                /* Acquisition optimization setting */
2807                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2808                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x07, 0x07);
2809                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2810                cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x02);
2811                break;
2812        default:
2813                dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
2814                                __func__, bandwidth);
2815                return -EINVAL;
2816        }
2817        return 0;
2818}
2819
2820static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
2821                                               u32 bandwidth)
2822{
2823        u8 bw7_8mhz_b10_a6[] = {
2824                0x2D, 0xC7, 0x04, 0xF4, 0x07, 0xC5, 0x2A, 0xB8,
2825                0x27, 0x9E, 0x27, 0xA4, 0x29, 0xAB };
2826        u8 bw6mhz_b10_a6[] = {
2827                0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2828                0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4 };
2829        u8 b10_b6[3];
2830        u32 iffreq, ifhz;
2831
2832        if (bandwidth != 6000000 &&
2833                        bandwidth != 7000000 &&
2834                        bandwidth != 8000000) {
2835                dev_info(&priv->i2c->dev, "%s(): unsupported bandwidth %d. Forcing 8Mhz!\n",
2836                                __func__, bandwidth);
2837                bandwidth = 8000000;
2838        }
2839
2840        dev_dbg(&priv->i2c->dev, "%s() bw=%d\n", __func__, bandwidth);
2841        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2842        switch (bandwidth) {
2843        case 8000000:
2844        case 7000000:
2845                if (priv->flags & CXD2841ER_ASCOT)
2846                        cxd2841er_write_regs(
2847                                priv, I2C_SLVT, 0xa6,
2848                                bw7_8mhz_b10_a6, sizeof(bw7_8mhz_b10_a6));
2849                ifhz = cxd2841er_get_if_hz(priv, 4900000);
2850                iffreq = cxd2841er_calc_iffreq(ifhz);
2851                break;
2852        case 6000000:
2853                if (priv->flags & CXD2841ER_ASCOT)
2854                        cxd2841er_write_regs(
2855                                priv, I2C_SLVT, 0xa6,
2856                                bw6mhz_b10_a6, sizeof(bw6mhz_b10_a6));
2857                ifhz = cxd2841er_get_if_hz(priv, 3700000);
2858                iffreq = cxd2841er_calc_iffreq(ifhz);
2859                break;
2860        default:
2861                dev_err(&priv->i2c->dev, "%s(): unsupported bandwidth %d\n",
2862                        __func__, bandwidth);
2863                return -EINVAL;
2864        }
2865        /* <IF freq setting> */
2866        b10_b6[0] = (u8) ((iffreq >> 16) & 0xff);
2867        b10_b6[1] = (u8)((iffreq >> 8) & 0xff);
2868        b10_b6[2] = (u8)(iffreq & 0xff);
2869        cxd2841er_write_regs(priv, I2C_SLVT, 0xb6, b10_b6, sizeof(b10_b6));
2870        /* Set SLV-T Bank : 0x11 */
2871        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
2872        switch (bandwidth) {
2873        case 8000000:
2874        case 7000000:
2875                cxd2841er_set_reg_bits(
2876                        priv, I2C_SLVT, 0xa3, 0x00, 0x1f);
2877                break;
2878        case 6000000:
2879                cxd2841er_set_reg_bits(
2880                        priv, I2C_SLVT, 0xa3, 0x14, 0x1f);
2881                break;
2882        }
2883        /* Set SLV-T Bank : 0x40 */
2884        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
2885        switch (bandwidth) {
2886        case 8000000:
2887                cxd2841er_set_reg_bits(
2888                        priv, I2C_SLVT, 0x26, 0x0b, 0x0f);
2889                cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0x3e);
2890                break;
2891        case 7000000:
2892                cxd2841er_set_reg_bits(
2893                        priv, I2C_SLVT, 0x26, 0x09, 0x0f);
2894                cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0xd6);
2895                break;
2896        case 6000000:
2897                cxd2841er_set_reg_bits(
2898                        priv, I2C_SLVT, 0x26, 0x08, 0x0f);
2899                cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0x6e);
2900                break;
2901        }
2902        return 0;
2903}
2904
2905static int cxd2841er_sleep_tc_to_active_t(struct cxd2841er_priv *priv,
2906                                          u32 bandwidth)
2907{
2908        u8 data[2] = { 0x09, 0x54 };
2909        u8 data24m[3] = {0xDC, 0x6C, 0x00};
2910
2911        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2912        cxd2841er_set_ts_clock_mode(priv, SYS_DVBT);
2913        /* Set SLV-X Bank : 0x00 */
2914        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
2915        /* Set demod mode */
2916        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
2917        /* Set SLV-T Bank : 0x00 */
2918        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2919        /* Enable demod clock */
2920        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
2921        /* Disable RF level monitor */
2922        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
2923        /* Enable ADC clock */
2924        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
2925        /* Enable ADC 1 */
2926        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
2927        /* Enable ADC 2 & 3 */
2928        if (priv->xtal == SONY_XTAL_41000) {
2929                data[0] = 0x0A;
2930                data[1] = 0xD4;
2931        }
2932        cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
2933        /* Enable ADC 4 */
2934        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
2935        /* Set SLV-T Bank : 0x10 */
2936        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2937        /* IFAGC gain settings */
2938        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x0c, 0x1f);
2939        /* Set SLV-T Bank : 0x11 */
2940        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
2941        /* BBAGC TARGET level setting */
2942        cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x50);
2943        /* Set SLV-T Bank : 0x10 */
2944        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2945        /* ASCOT setting */
2946        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
2947                ((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
2948        /* Set SLV-T Bank : 0x18 */
2949        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x18);
2950        /* Pre-RS BER moniter setting */
2951        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x36, 0x40, 0x07);
2952        /* FEC Auto Recovery setting */
2953        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x30, 0x01, 0x01);
2954        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x31, 0x01, 0x01);
2955        /* Set SLV-T Bank : 0x00 */
2956        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2957        /* TSIF setting */
2958        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
2959        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
2960
2961        if (priv->xtal == SONY_XTAL_24000) {
2962                /* Set SLV-T Bank : 0x10 */
2963                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2964                cxd2841er_write_reg(priv, I2C_SLVT, 0xBF, 0x60);
2965                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x18);
2966                cxd2841er_write_regs(priv, I2C_SLVT, 0x24, data24m, 3);
2967        }
2968
2969        cxd2841er_sleep_tc_to_active_t_band(priv, bandwidth);
2970        /* Set SLV-T Bank : 0x00 */
2971        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2972        /* Disable HiZ Setting 1 */
2973        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
2974        /* Disable HiZ Setting 2 */
2975        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
2976        priv->state = STATE_ACTIVE_TC;
2977        return 0;
2978}
2979
2980static int cxd2841er_sleep_tc_to_active_t2(struct cxd2841er_priv *priv,
2981                                           u32 bandwidth)
2982{
2983        u8 data[MAX_WRITE_REGSIZE];
2984
2985        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2986        cxd2841er_set_ts_clock_mode(priv, SYS_DVBT2);
2987        /* Set SLV-X Bank : 0x00 */
2988        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
2989        /* Set demod mode */
2990        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x02);
2991        /* Set SLV-T Bank : 0x00 */
2992        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2993        /* Enable demod clock */
2994        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
2995        /* Disable RF level monitor */
2996        cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x00);
2997        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
2998        /* Enable ADC clock */
2999        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
3000        /* Enable ADC 1 */
3001        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
3002
3003        if (priv->xtal == SONY_XTAL_41000) {
3004                data[0] = 0x0A;
3005                data[1] = 0xD4;
3006        } else {
3007                data[0] = 0x09;
3008                data[1] = 0x54;
3009        }
3010
3011        cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3012        /* Enable ADC 4 */
3013        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3014        /* Set SLV-T Bank : 0x10 */
3015        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3016        /* IFAGC gain settings */
3017        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x0c, 0x1f);
3018        /* Set SLV-T Bank : 0x11 */
3019        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3020        /* BBAGC TARGET level setting */
3021        cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x50);
3022        /* Set SLV-T Bank : 0x10 */
3023        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3024        /* ASCOT setting */
3025        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3026                ((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3027        /* Set SLV-T Bank : 0x20 */
3028        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
3029        /* Acquisition optimization setting */
3030        cxd2841er_write_reg(priv, I2C_SLVT, 0x8b, 0x3c);
3031        /* Set SLV-T Bank : 0x2b */
3032        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
3033        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x76, 0x20, 0x70);
3034        /* Set SLV-T Bank : 0x23 */
3035        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x23);
3036        /* L1 Control setting */
3037        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xE6, 0x00, 0x03);
3038        /* Set SLV-T Bank : 0x00 */
3039        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3040        /* TSIF setting */
3041        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
3042        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
3043        /* DVB-T2 initial setting */
3044        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
3045        cxd2841er_write_reg(priv, I2C_SLVT, 0x83, 0x10);
3046        cxd2841er_write_reg(priv, I2C_SLVT, 0x86, 0x34);
3047        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9e, 0x09, 0x0f);
3048        cxd2841er_write_reg(priv, I2C_SLVT, 0x9f, 0xd8);
3049        /* Set SLV-T Bank : 0x2a */
3050        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2a);
3051        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x38, 0x04, 0x0f);
3052        /* Set SLV-T Bank : 0x2b */
3053        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
3054        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x11, 0x20, 0x3f);
3055
3056        /* 24MHz Xtal setting */
3057        if (priv->xtal == SONY_XTAL_24000) {
3058                /* Set SLV-T Bank : 0x11 */
3059                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3060                data[0] = 0xEB;
3061                data[1] = 0x03;
3062                data[2] = 0x3B;
3063                cxd2841er_write_regs(priv, I2C_SLVT, 0x33, data, 3);
3064
3065                /* Set SLV-T Bank : 0x20 */
3066                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
3067                data[0] = 0x5E;
3068                data[1] = 0x5E;
3069                data[2] = 0x47;
3070                cxd2841er_write_regs(priv, I2C_SLVT, 0x95, data, 3);
3071
3072                cxd2841er_write_reg(priv, I2C_SLVT, 0x99, 0x18);
3073
3074                data[0] = 0x3F;
3075                data[1] = 0xFF;
3076                cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
3077
3078                /* Set SLV-T Bank : 0x24 */
3079                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x24);
3080                data[0] = 0x0B;
3081                data[1] = 0x72;
3082                cxd2841er_write_regs(priv, I2C_SLVT, 0x34, data, 2);
3083
3084                data[0] = 0x93;
3085                data[1] = 0xF3;
3086                data[2] = 0x00;
3087                cxd2841er_write_regs(priv, I2C_SLVT, 0xD2, data, 3);
3088
3089                data[0] = 0x05;
3090                data[1] = 0xB8;
3091                data[2] = 0xD8;
3092                cxd2841er_write_regs(priv, I2C_SLVT, 0xDD, data, 3);
3093
3094                cxd2841er_write_reg(priv, I2C_SLVT, 0xE0, 0x00);
3095
3096                /* Set SLV-T Bank : 0x25 */
3097                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x25);
3098                cxd2841er_write_reg(priv, I2C_SLVT, 0xED, 0x60);
3099
3100                /* Set SLV-T Bank : 0x27 */
3101                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
3102                cxd2841er_write_reg(priv, I2C_SLVT, 0xFA, 0x34);
3103
3104                /* Set SLV-T Bank : 0x2B */
3105                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2B);
3106                cxd2841er_write_reg(priv, I2C_SLVT, 0x4B, 0x2F);
3107                cxd2841er_write_reg(priv, I2C_SLVT, 0x9E, 0x0E);
3108
3109                /* Set SLV-T Bank : 0x2D */
3110                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2D);
3111                data[0] = 0x89;
3112                data[1] = 0x89;
3113                cxd2841er_write_regs(priv, I2C_SLVT, 0x24, data, 2);
3114
3115                /* Set SLV-T Bank : 0x5E */
3116                cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x5E);
3117                data[0] = 0x24;
3118                data[1] = 0x95;
3119                cxd2841er_write_regs(priv, I2C_SLVT, 0x8C, data, 2);
3120        }
3121
3122        cxd2841er_sleep_tc_to_active_t2_band(priv, bandwidth);
3123
3124        /* Set SLV-T Bank : 0x00 */
3125        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3126        /* Disable HiZ Setting 1 */
3127        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3128        /* Disable HiZ Setting 2 */
3129        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3130        priv->state = STATE_ACTIVE_TC;
3131        return 0;
3132}
3133
3134/* ISDB-Tb part */
3135static int cxd2841er_sleep_tc_to_active_i(struct cxd2841er_priv *priv,
3136                u32 bandwidth)
3137{
3138        u8 data[2] = { 0x09, 0x54 };
3139        u8 data24m[2] = {0x60, 0x00};
3140        u8 data24m2[3] = {0xB7, 0x1B, 0x00};
3141
3142        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3143        cxd2841er_set_ts_clock_mode(priv, SYS_DVBT);
3144        /* Set SLV-X Bank : 0x00 */
3145        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
3146        /* Set demod mode */
3147        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x06);
3148        /* Set SLV-T Bank : 0x00 */
3149        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3150        /* Enable demod clock */
3151        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
3152        /* Enable RF level monitor */
3153        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x01);
3154        cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x01);
3155        /* Enable ADC clock */
3156        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
3157        /* Enable ADC 1 */
3158        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
3159        /* xtal freq 20.5MHz or 24M */
3160        cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3161        /* Enable ADC 4 */
3162        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3163        /* ASCOT setting */
3164        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3165                ((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3166        /* FEC Auto Recovery setting */
3167        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x30, 0x01, 0x01);
3168        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x31, 0x00, 0x01);
3169        /* ISDB-T initial setting */
3170        /* Set SLV-T Bank : 0x00 */
3171        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3172        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x00, 0x01);
3173        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x00, 0x01);
3174        /* Set SLV-T Bank : 0x10 */
3175        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3176        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x69, 0x04, 0x07);
3177        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x6B, 0x03, 0x07);
3178        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9D, 0x50, 0xFF);
3179        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xD3, 0x06, 0x1F);
3180        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xED, 0x00, 0x01);
3181        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xE2, 0xCE, 0x80);
3182        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xF2, 0x13, 0x10);
3183        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xDE, 0x2E, 0x3F);
3184        /* Set SLV-T Bank : 0x15 */
3185        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
3186        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xDE, 0x02, 0x03);
3187        /* Set SLV-T Bank : 0x1E */
3188        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x1E);
3189        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x73, 0x68, 0xFF);
3190        /* Set SLV-T Bank : 0x63 */
3191        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x63);
3192        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x81, 0x00, 0x01);
3193
3194        /* for xtal 24MHz */
3195        /* Set SLV-T Bank : 0x10 */
3196        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3197        cxd2841er_write_regs(priv, I2C_SLVT, 0xBF, data24m, 2);
3198        /* Set SLV-T Bank : 0x60 */
3199        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
3200        cxd2841er_write_regs(priv, I2C_SLVT, 0xA8, data24m2, 3);
3201
3202        cxd2841er_sleep_tc_to_active_i_band(priv, bandwidth);
3203        /* Set SLV-T Bank : 0x00 */
3204        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3205        /* Disable HiZ Setting 1 */
3206        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3207        /* Disable HiZ Setting 2 */
3208        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3209        priv->state = STATE_ACTIVE_TC;
3210        return 0;
3211}
3212
3213static int cxd2841er_sleep_tc_to_active_c(struct cxd2841er_priv *priv,
3214                                          u32 bandwidth)
3215{
3216        u8 data[2] = { 0x09, 0x54 };
3217
3218        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3219        cxd2841er_set_ts_clock_mode(priv, SYS_DVBC_ANNEX_A);
3220        /* Set SLV-X Bank : 0x00 */
3221        cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
3222        /* Set demod mode */
3223        cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x04);
3224        /* Set SLV-T Bank : 0x00 */
3225        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3226        /* Enable demod clock */
3227        cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
3228        /* Disable RF level monitor */
3229        cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x00);
3230        cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
3231        /* Enable ADC clock */
3232        cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
3233        /* Enable ADC 1 */
3234        cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
3235        /* xtal freq 20.5MHz */
3236        cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3237        /* Enable ADC 4 */
3238        cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3239        /* Set SLV-T Bank : 0x10 */
3240        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3241        /* IFAGC gain settings */
3242        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x09, 0x1f);
3243        /* Set SLV-T Bank : 0x11 */
3244        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3245        /* BBAGC TARGET level setting */
3246        cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x48);
3247        /* Set SLV-T Bank : 0x10 */
3248        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3249        /* ASCOT setting */
3250        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3251                ((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3252        /* Set SLV-T Bank : 0x40 */
3253        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
3254        /* Demod setting */
3255        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc3, 0x00, 0x04);
3256        /* Set SLV-T Bank : 0x00 */
3257        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3258        /* TSIF setting */
3259        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
3260        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
3261
3262        cxd2841er_sleep_tc_to_active_c_band(priv, bandwidth);
3263        /* Set SLV-T Bank : 0x00 */
3264        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3265        /* Disable HiZ Setting 1 */
3266        cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3267        /* Disable HiZ Setting 2 */
3268        cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3269        priv->state = STATE_ACTIVE_TC;
3270        return 0;
3271}
3272
3273static int cxd2841er_get_frontend(struct dvb_frontend *fe,
3274                                  struct dtv_frontend_properties *p)
3275{
3276        enum fe_status status = 0;
3277        struct cxd2841er_priv *priv = fe->demodulator_priv;
3278
3279        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3280        if (priv->state == STATE_ACTIVE_S)
3281                cxd2841er_read_status_s(fe, &status);
3282        else if (priv->state == STATE_ACTIVE_TC)
3283                cxd2841er_read_status_tc(fe, &status);
3284
3285        if (priv->state == STATE_ACTIVE_TC || priv->state == STATE_ACTIVE_S)
3286                cxd2841er_read_signal_strength(fe);
3287        else
3288                p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3289
3290        if (status & FE_HAS_LOCK) {
3291                cxd2841er_read_snr(fe);
3292                cxd2841er_read_ucblocks(fe);
3293
3294                cxd2841er_read_ber(fe);
3295        } else {
3296                p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3297                p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3298                p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3299                p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3300        }
3301        return 0;
3302}
3303
3304static int cxd2841er_set_frontend_s(struct dvb_frontend *fe)
3305{
3306        int ret = 0, i, timeout, carr_offset;
3307        enum fe_status status;
3308        struct cxd2841er_priv *priv = fe->demodulator_priv;
3309        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3310        u32 symbol_rate = p->symbol_rate/1000;
3311
3312        dev_dbg(&priv->i2c->dev, "%s(): %s frequency=%d symbol_rate=%d xtal=%d\n",
3313                __func__,
3314                (p->delivery_system == SYS_DVBS ? "DVB-S" : "DVB-S2"),
3315                 p->frequency, symbol_rate, priv->xtal);
3316
3317        if (priv->flags & CXD2841ER_EARLY_TUNE)
3318                cxd2841er_tuner_set(fe);
3319
3320        switch (priv->state) {
3321        case STATE_SLEEP_S:
3322                ret = cxd2841er_sleep_s_to_active_s(
3323                        priv, p->delivery_system, symbol_rate);
3324                break;
3325        case STATE_ACTIVE_S:
3326                ret = cxd2841er_retune_active(priv, p);
3327                break;
3328        default:
3329                dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3330                        __func__, priv->state);
3331                ret = -EINVAL;
3332                goto done;
3333        }
3334        if (ret) {
3335                dev_dbg(&priv->i2c->dev, "%s(): tune failed\n", __func__);
3336                goto done;
3337        }
3338
3339        if (!(priv->flags & CXD2841ER_EARLY_TUNE))
3340                cxd2841er_tuner_set(fe);
3341
3342        cxd2841er_tune_done(priv);
3343        timeout = ((3000000 + (symbol_rate - 1)) / symbol_rate) + 150;
3344
3345        i = 0;
3346        do {
3347                usleep_range(CXD2841ER_DVBS_POLLING_INVL*1000,
3348                        (CXD2841ER_DVBS_POLLING_INVL + 2) * 1000);
3349                cxd2841er_read_status_s(fe, &status);
3350                if (status & FE_HAS_LOCK)
3351                        break;
3352                i++;
3353        } while (i < timeout / CXD2841ER_DVBS_POLLING_INVL);
3354
3355        if (status & FE_HAS_LOCK) {
3356                if (cxd2841er_get_carrier_offset_s_s2(
3357                                priv, &carr_offset)) {
3358                        ret = -EINVAL;
3359                        goto done;
3360                }
3361                dev_dbg(&priv->i2c->dev, "%s(): carrier_offset=%d\n",
3362                        __func__, carr_offset);
3363        }
3364done:
3365        /* Reset stats */
3366        p->strength.stat[0].scale = FE_SCALE_RELATIVE;
3367        p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3368        p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3369        p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3370        p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3371
3372        return ret;
3373}
3374
3375static int cxd2841er_set_frontend_tc(struct dvb_frontend *fe)
3376{
3377        int ret = 0, timeout;
3378        enum fe_status status;
3379        struct cxd2841er_priv *priv = fe->demodulator_priv;
3380        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3381
3382        dev_dbg(&priv->i2c->dev, "%s() delivery_system=%d bandwidth_hz=%d\n",
3383                 __func__, p->delivery_system, p->bandwidth_hz);
3384
3385        if (priv->flags & CXD2841ER_EARLY_TUNE)
3386                cxd2841er_tuner_set(fe);
3387
3388        /* deconfigure/put demod to sleep on delsys switch if active */
3389        if (priv->state == STATE_ACTIVE_TC &&
3390            priv->system != p->delivery_system) {
3391                dev_dbg(&priv->i2c->dev, "%s(): old_delsys=%d, new_delsys=%d -> sleep\n",
3392                         __func__, priv->system, p->delivery_system);
3393                cxd2841er_sleep_tc(fe);
3394        }
3395
3396        if (p->delivery_system == SYS_DVBT) {
3397                priv->system = SYS_DVBT;
3398                switch (priv->state) {
3399                case STATE_SLEEP_TC:
3400                        ret = cxd2841er_sleep_tc_to_active_t(
3401                                priv, p->bandwidth_hz);
3402                        break;
3403                case STATE_ACTIVE_TC:
3404                        ret = cxd2841er_retune_active(priv, p);
3405                        break;
3406                default:
3407                        dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3408                                __func__, priv->state);
3409                        ret = -EINVAL;
3410                }
3411        } else if (p->delivery_system == SYS_DVBT2) {
3412                priv->system = SYS_DVBT2;
3413                cxd2841er_dvbt2_set_plp_config(priv,
3414                        (int)(p->stream_id > 255), p->stream_id);
3415                cxd2841er_dvbt2_set_profile(priv, DVBT2_PROFILE_BASE);
3416                switch (priv->state) {
3417                case STATE_SLEEP_TC:
3418                        ret = cxd2841er_sleep_tc_to_active_t2(priv,
3419                                p->bandwidth_hz);
3420                        break;
3421                case STATE_ACTIVE_TC:
3422                        ret = cxd2841er_retune_active(priv, p);
3423                        break;
3424                default:
3425                        dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3426                                __func__, priv->state);
3427                        ret = -EINVAL;
3428                }
3429        } else if (p->delivery_system == SYS_ISDBT) {
3430                priv->system = SYS_ISDBT;
3431                switch (priv->state) {
3432                case STATE_SLEEP_TC:
3433                        ret = cxd2841er_sleep_tc_to_active_i(
3434                                        priv, p->bandwidth_hz);
3435                        break;
3436                case STATE_ACTIVE_TC:
3437                        ret = cxd2841er_retune_active(priv, p);
3438                        break;
3439                default:
3440                        dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3441                                        __func__, priv->state);
3442                        ret = -EINVAL;
3443                }
3444        } else if (p->delivery_system == SYS_DVBC_ANNEX_A ||
3445                        p->delivery_system == SYS_DVBC_ANNEX_C) {
3446                priv->system = SYS_DVBC_ANNEX_A;
3447                /* correct bandwidth */
3448                if (p->bandwidth_hz != 6000000 &&
3449                                p->bandwidth_hz != 7000000 &&
3450                                p->bandwidth_hz != 8000000) {
3451                        p->bandwidth_hz = 8000000;
3452                        dev_dbg(&priv->i2c->dev, "%s(): forcing bandwidth to %d\n",
3453                                        __func__, p->bandwidth_hz);
3454                }
3455
3456                switch (priv->state) {
3457                case STATE_SLEEP_TC:
3458                        ret = cxd2841er_sleep_tc_to_active_c(
3459                                priv, p->bandwidth_hz);
3460                        break;
3461                case STATE_ACTIVE_TC:
3462                        ret = cxd2841er_retune_active(priv, p);
3463                        break;
3464                default:
3465                        dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3466                                __func__, priv->state);
3467                        ret = -EINVAL;
3468                }
3469        } else {
3470                dev_dbg(&priv->i2c->dev,
3471                        "%s(): invalid delivery system %d\n",
3472                        __func__, p->delivery_system);
3473                ret = -EINVAL;
3474        }
3475        if (ret)
3476                goto done;
3477
3478        if (!(priv->flags & CXD2841ER_EARLY_TUNE))
3479                cxd2841er_tuner_set(fe);
3480
3481        cxd2841er_tune_done(priv);
3482
3483        if (priv->flags & CXD2841ER_NO_WAIT_LOCK)
3484                goto done;
3485
3486        timeout = 2500;
3487        while (timeout > 0) {
3488                ret = cxd2841er_read_status_tc(fe, &status);
3489                if (ret)
3490                        goto done;
3491                if (status & FE_HAS_LOCK)
3492                        break;
3493                msleep(20);
3494                timeout -= 20;
3495        }
3496        if (timeout < 0)
3497                dev_dbg(&priv->i2c->dev,
3498                        "%s(): LOCK wait timeout\n", __func__);
3499done:
3500        return ret;
3501}
3502
3503static int cxd2841er_tune_s(struct dvb_frontend *fe,
3504                            bool re_tune,
3505                            unsigned int mode_flags,
3506                            unsigned int *delay,
3507                            enum fe_status *status)
3508{
3509        int ret, carrier_offset;
3510        struct cxd2841er_priv *priv = fe->demodulator_priv;
3511        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3512
3513        dev_dbg(&priv->i2c->dev, "%s() re_tune=%d\n", __func__, re_tune);
3514        if (re_tune) {
3515                ret = cxd2841er_set_frontend_s(fe);
3516                if (ret)
3517                        return ret;
3518                cxd2841er_read_status_s(fe, status);
3519                if (*status & FE_HAS_LOCK) {
3520                        if (cxd2841er_get_carrier_offset_s_s2(
3521                                        priv, &carrier_offset))
3522                                return -EINVAL;
3523                        p->frequency += carrier_offset;
3524                        ret = cxd2841er_set_frontend_s(fe);
3525                        if (ret)
3526                                return ret;
3527                }
3528        }
3529        *delay = HZ / 5;
3530        return cxd2841er_read_status_s(fe, status);
3531}
3532
3533static int cxd2841er_tune_tc(struct dvb_frontend *fe,
3534                             bool re_tune,
3535                             unsigned int mode_flags,
3536                             unsigned int *delay,
3537                             enum fe_status *status)
3538{
3539        int ret, carrier_offset;
3540        struct cxd2841er_priv *priv = fe->demodulator_priv;
3541        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3542
3543        dev_dbg(&priv->i2c->dev, "%s(): re_tune %d bandwidth=%d\n", __func__,
3544                        re_tune, p->bandwidth_hz);
3545        if (re_tune) {
3546                ret = cxd2841er_set_frontend_tc(fe);
3547                if (ret)
3548                        return ret;
3549                cxd2841er_read_status_tc(fe, status);
3550                if (*status & FE_HAS_LOCK) {
3551                        switch (priv->system) {
3552                        case SYS_ISDBT:
3553                                ret = cxd2841er_get_carrier_offset_i(
3554                                                priv, p->bandwidth_hz,
3555                                                &carrier_offset);
3556                                if (ret)
3557                                        return ret;
3558                                break;
3559                        case SYS_DVBT:
3560                                ret = cxd2841er_get_carrier_offset_t(
3561                                        priv, p->bandwidth_hz,
3562                                        &carrier_offset);
3563                                if (ret)
3564                                        return ret;
3565                                break;
3566                        case SYS_DVBT2:
3567                                ret = cxd2841er_get_carrier_offset_t2(
3568                                        priv, p->bandwidth_hz,
3569                                        &carrier_offset);
3570                                if (ret)
3571                                        return ret;
3572                                break;
3573                        case SYS_DVBC_ANNEX_A:
3574                                ret = cxd2841er_get_carrier_offset_c(
3575                                        priv, &carrier_offset);
3576                                if (ret)
3577                                        return ret;
3578                                break;
3579                        default:
3580                                dev_dbg(&priv->i2c->dev,
3581                                        "%s(): invalid delivery system %d\n",
3582                                        __func__, priv->system);
3583                                return -EINVAL;
3584                        }
3585                        dev_dbg(&priv->i2c->dev, "%s(): carrier offset %d\n",
3586                                __func__, carrier_offset);
3587                        p->frequency += carrier_offset;
3588                        ret = cxd2841er_set_frontend_tc(fe);
3589                        if (ret)
3590                                return ret;
3591                }
3592        }
3593        *delay = HZ / 5;
3594        return cxd2841er_read_status_tc(fe, status);
3595}
3596
3597static int cxd2841er_sleep_s(struct dvb_frontend *fe)
3598{
3599        struct cxd2841er_priv *priv = fe->demodulator_priv;
3600
3601        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3602        cxd2841er_active_s_to_sleep_s(fe->demodulator_priv);
3603        cxd2841er_sleep_s_to_shutdown(fe->demodulator_priv);
3604        return 0;
3605}
3606
3607static int cxd2841er_sleep_tc(struct dvb_frontend *fe)
3608{
3609        struct cxd2841er_priv *priv = fe->demodulator_priv;
3610
3611        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3612
3613        if (priv->state == STATE_ACTIVE_TC) {
3614                switch (priv->system) {
3615                case SYS_DVBT:
3616                        cxd2841er_active_t_to_sleep_tc(priv);
3617                        break;
3618                case SYS_DVBT2:
3619                        cxd2841er_active_t2_to_sleep_tc(priv);
3620                        break;
3621                case SYS_ISDBT:
3622                        cxd2841er_active_i_to_sleep_tc(priv);
3623                        break;
3624                case SYS_DVBC_ANNEX_A:
3625                        cxd2841er_active_c_to_sleep_tc(priv);
3626                        break;
3627                default:
3628                        dev_warn(&priv->i2c->dev,
3629                                "%s(): unknown delivery system %d\n",
3630                                __func__, priv->system);
3631                }
3632        }
3633        if (priv->state != STATE_SLEEP_TC) {
3634                dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
3635                        __func__, priv->state);
3636                return -EINVAL;
3637        }
3638        return 0;
3639}
3640
3641static int cxd2841er_shutdown_tc(struct dvb_frontend *fe)
3642{
3643        struct cxd2841er_priv *priv = fe->demodulator_priv;
3644
3645        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3646
3647        if (!cxd2841er_sleep_tc(fe))
3648                cxd2841er_sleep_tc_to_shutdown(priv);
3649        return 0;
3650}
3651
3652static int cxd2841er_send_burst(struct dvb_frontend *fe,
3653                                enum fe_sec_mini_cmd burst)
3654{
3655        u8 data;
3656        struct cxd2841er_priv *priv  = fe->demodulator_priv;
3657
3658        dev_dbg(&priv->i2c->dev, "%s(): burst mode %s\n", __func__,
3659                (burst == SEC_MINI_A ? "A" : "B"));
3660        if (priv->state != STATE_SLEEP_S &&
3661                        priv->state != STATE_ACTIVE_S) {
3662                dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3663                        __func__, priv->state);
3664                return -EINVAL;
3665        }
3666        data = (burst == SEC_MINI_A ? 0 : 1);
3667        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3668        cxd2841er_write_reg(priv, I2C_SLVT, 0x34, 0x01);
3669        cxd2841er_write_reg(priv, I2C_SLVT, 0x35, data);
3670        return 0;
3671}
3672
3673static int cxd2841er_set_tone(struct dvb_frontend *fe,
3674                              enum fe_sec_tone_mode tone)
3675{
3676        u8 data;
3677        struct cxd2841er_priv *priv  = fe->demodulator_priv;
3678
3679        dev_dbg(&priv->i2c->dev, "%s(): tone %s\n", __func__,
3680                (tone == SEC_TONE_ON ? "On" : "Off"));
3681        if (priv->state != STATE_SLEEP_S &&
3682                        priv->state != STATE_ACTIVE_S) {
3683                dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3684                        __func__, priv->state);
3685                return -EINVAL;
3686        }
3687        data = (tone == SEC_TONE_ON ? 1 : 0);
3688        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3689        cxd2841er_write_reg(priv, I2C_SLVT, 0x36, data);
3690        return 0;
3691}
3692
3693static int cxd2841er_send_diseqc_msg(struct dvb_frontend *fe,
3694                                     struct dvb_diseqc_master_cmd *cmd)
3695{
3696        int i;
3697        u8 data[12];
3698        struct cxd2841er_priv *priv  = fe->demodulator_priv;
3699
3700        if (priv->state != STATE_SLEEP_S &&
3701                        priv->state != STATE_ACTIVE_S) {
3702                dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3703                        __func__, priv->state);
3704                return -EINVAL;
3705        }
3706        dev_dbg(&priv->i2c->dev,
3707                "%s(): cmd->len %d\n", __func__, cmd->msg_len);
3708        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3709        /* DiDEqC enable */
3710        cxd2841er_write_reg(priv, I2C_SLVT, 0x33, 0x01);
3711        /* cmd1 length & data */
3712        cxd2841er_write_reg(priv, I2C_SLVT, 0x3d, cmd->msg_len);
3713        memset(data, 0, sizeof(data));
3714        for (i = 0; i < cmd->msg_len && i < sizeof(data); i++)
3715                data[i] = cmd->msg[i];
3716        cxd2841er_write_regs(priv, I2C_SLVT, 0x3e, data, sizeof(data));
3717        /* repeat count for cmd1 */
3718        cxd2841er_write_reg(priv, I2C_SLVT, 0x37, 1);
3719        /* repeat count for cmd2: always 0 */
3720        cxd2841er_write_reg(priv, I2C_SLVT, 0x38, 0);
3721        /* start transmit */
3722        cxd2841er_write_reg(priv, I2C_SLVT, 0x32, 0x01);
3723        /* wait for 1 sec timeout */
3724        for (i = 0; i < 50; i++) {
3725                cxd2841er_read_reg(priv, I2C_SLVT, 0x10, data);
3726                if (!data[0]) {
3727                        dev_dbg(&priv->i2c->dev,
3728                                "%s(): DiSEqC cmd has been sent\n", __func__);
3729                        return 0;
3730                }
3731                msleep(20);
3732        }
3733        dev_dbg(&priv->i2c->dev,
3734                "%s(): DiSEqC cmd transmit timeout\n", __func__);
3735        return -ETIMEDOUT;
3736}
3737
3738static void cxd2841er_release(struct dvb_frontend *fe)
3739{
3740        struct cxd2841er_priv *priv  = fe->demodulator_priv;
3741
3742        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3743        kfree(priv);
3744}
3745
3746static int cxd2841er_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
3747{
3748        struct cxd2841er_priv *priv = fe->demodulator_priv;
3749
3750        dev_dbg(&priv->i2c->dev, "%s(): enable=%d\n", __func__, enable);
3751        cxd2841er_set_reg_bits(
3752                priv, I2C_SLVX, 0x8, (enable ? 0x01 : 0x00), 0x01);
3753        return 0;
3754}
3755
3756static enum dvbfe_algo cxd2841er_get_algo(struct dvb_frontend *fe)
3757{
3758        struct cxd2841er_priv *priv = fe->demodulator_priv;
3759
3760        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3761        return DVBFE_ALGO_HW;
3762}
3763
3764static void cxd2841er_init_stats(struct dvb_frontend *fe)
3765{
3766        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3767
3768        p->strength.len = 1;
3769        p->strength.stat[0].scale = FE_SCALE_RELATIVE;
3770        p->cnr.len = 1;
3771        p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3772        p->block_error.len = 1;
3773        p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3774        p->post_bit_error.len = 1;
3775        p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3776        p->post_bit_count.len = 1;
3777        p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3778}
3779
3780
3781static int cxd2841er_init_s(struct dvb_frontend *fe)
3782{
3783        struct cxd2841er_priv *priv = fe->demodulator_priv;
3784
3785        /* sanity. force demod to SHUTDOWN state */
3786        if (priv->state == STATE_SLEEP_S) {
3787                dev_dbg(&priv->i2c->dev, "%s() forcing sleep->shutdown\n",
3788                                __func__);
3789                cxd2841er_sleep_s_to_shutdown(priv);
3790        } else if (priv->state == STATE_ACTIVE_S) {
3791                dev_dbg(&priv->i2c->dev, "%s() forcing active->sleep->shutdown\n",
3792                                __func__);
3793                cxd2841er_active_s_to_sleep_s(priv);
3794                cxd2841er_sleep_s_to_shutdown(priv);
3795        }
3796
3797        dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3798        cxd2841er_shutdown_to_sleep_s(priv);
3799        /* SONY_DEMOD_CONFIG_SAT_IFAGCNEG set to 1 */
3800        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
3801        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xb9, 0x01, 0x01);
3802
3803        cxd2841er_init_stats(fe);
3804
3805        return 0;
3806}
3807
3808static int cxd2841er_init_tc(struct dvb_frontend *fe)
3809{
3810        struct cxd2841er_priv *priv = fe->demodulator_priv;
3811        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3812
3813        dev_dbg(&priv->i2c->dev, "%s() bandwidth_hz=%d\n",
3814                        __func__, p->bandwidth_hz);
3815        cxd2841er_shutdown_to_sleep_tc(priv);
3816        /* SONY_DEMOD_CONFIG_IFAGCNEG = 1 (0 for NO_AGCNEG */
3817        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3818        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcb,
3819                ((priv->flags & CXD2841ER_NO_AGCNEG) ? 0x00 : 0x40), 0x40);
3820        /* SONY_DEMOD_CONFIG_IFAGC_ADC_FS = 0 */
3821        cxd2841er_write_reg(priv, I2C_SLVT, 0xcd, 0x50);
3822        /* SONY_DEMOD_CONFIG_PARALLEL_SEL = 1 */
3823        cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3824        cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4,
3825                ((priv->flags & CXD2841ER_TS_SERIAL) ? 0x80 : 0x00), 0x80);
3826
3827        /* clear TSCFG bits 3+4 */
3828        if (priv->flags & CXD2841ER_TSBITS)
3829                cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4, 0x00, 0x18);
3830
3831        cxd2841er_init_stats(fe);
3832
3833        return 0;
3834}
3835
3836static const struct dvb_frontend_ops cxd2841er_dvbs_s2_ops;
3837static struct dvb_frontend_ops cxd2841er_t_c_ops;
3838
3839static struct dvb_frontend *cxd2841er_attach(struct cxd2841er_config *cfg,
3840                                             struct i2c_adapter *i2c,
3841                                             u8 system)
3842{
3843        u8 chip_id = 0;
3844        const char *type;
3845        const char *name;
3846        struct cxd2841er_priv *priv = NULL;
3847
3848        /* allocate memory for the internal state */
3849        priv = kzalloc(sizeof(struct cxd2841er_priv), GFP_KERNEL);
3850        if (!priv)
3851                return NULL;
3852        priv->i2c = i2c;
3853        priv->config = cfg;
3854        priv->i2c_addr_slvx = (cfg->i2c_addr + 4) >> 1;
3855        priv->i2c_addr_slvt = (cfg->i2c_addr) >> 1;
3856        priv->xtal = cfg->xtal;
3857        priv->flags = cfg->flags;
3858        priv->frontend.demodulator_priv = priv;
3859        dev_info(&priv->i2c->dev,
3860                "%s(): I2C adapter %p SLVX addr %x SLVT addr %x\n",
3861                __func__, priv->i2c,
3862                priv->i2c_addr_slvx, priv->i2c_addr_slvt);
3863        chip_id = cxd2841er_chip_id(priv);
3864        switch (chip_id) {
3865        case CXD2837ER_CHIP_ID:
3866                snprintf(cxd2841er_t_c_ops.info.name, 128,
3867                                "Sony CXD2837ER DVB-T/T2/C demodulator");
3868                name = "CXD2837ER";
3869                type = "C/T/T2";
3870                break;
3871        case CXD2838ER_CHIP_ID:
3872                snprintf(cxd2841er_t_c_ops.info.name, 128,
3873                                "Sony CXD2838ER ISDB-T demodulator");
3874                cxd2841er_t_c_ops.delsys[0] = SYS_ISDBT;
3875                cxd2841er_t_c_ops.delsys[1] = SYS_UNDEFINED;
3876                cxd2841er_t_c_ops.delsys[2] = SYS_UNDEFINED;
3877                name = "CXD2838ER";
3878                type = "ISDB-T";
3879                break;
3880        case CXD2841ER_CHIP_ID:
3881                snprintf(cxd2841er_t_c_ops.info.name, 128,
3882                                "Sony CXD2841ER DVB-T/T2/C demodulator");
3883                name = "CXD2841ER";
3884                type = "T/T2/C/ISDB-T";
3885                break;
3886        case CXD2843ER_CHIP_ID:
3887                snprintf(cxd2841er_t_c_ops.info.name, 128,
3888                                "Sony CXD2843ER DVB-T/T2/C/C2 demodulator");
3889                name = "CXD2843ER";
3890                type = "C/C2/T/T2";
3891                break;
3892        case CXD2854ER_CHIP_ID:
3893                snprintf(cxd2841er_t_c_ops.info.name, 128,
3894                                "Sony CXD2854ER DVB-T/T2/C and ISDB-T demodulator");
3895                cxd2841er_t_c_ops.delsys[3] = SYS_ISDBT;
3896                name = "CXD2854ER";
3897                type = "C/C2/T/T2/ISDB-T";
3898                break;
3899        default:
3900                dev_err(&priv->i2c->dev, "%s(): invalid chip ID 0x%02x\n",
3901                                __func__, chip_id);
3902                priv->frontend.demodulator_priv = NULL;
3903                kfree(priv);
3904                return NULL;
3905        }
3906
3907        /* create dvb_frontend */
3908        if (system == SYS_DVBS) {
3909                memcpy(&priv->frontend.ops,
3910                        &cxd2841er_dvbs_s2_ops,
3911                        sizeof(struct dvb_frontend_ops));
3912                type = "S/S2";
3913        } else {
3914                memcpy(&priv->frontend.ops,
3915                        &cxd2841er_t_c_ops,
3916                        sizeof(struct dvb_frontend_ops));
3917        }
3918
3919        dev_info(&priv->i2c->dev,
3920                "%s(): attaching %s DVB-%s frontend\n",
3921                __func__, name, type);
3922        dev_info(&priv->i2c->dev, "%s(): chip ID 0x%02x OK.\n",
3923                __func__, chip_id);
3924        return &priv->frontend;
3925}
3926
3927struct dvb_frontend *cxd2841er_attach_s(struct cxd2841er_config *cfg,
3928                                        struct i2c_adapter *i2c)
3929{
3930        return cxd2841er_attach(cfg, i2c, SYS_DVBS);
3931}
3932EXPORT_SYMBOL(cxd2841er_attach_s);
3933
3934struct dvb_frontend *cxd2841er_attach_t_c(struct cxd2841er_config *cfg,
3935                                        struct i2c_adapter *i2c)
3936{
3937        return cxd2841er_attach(cfg, i2c, 0);
3938}
3939EXPORT_SYMBOL(cxd2841er_attach_t_c);
3940
3941static const struct dvb_frontend_ops cxd2841er_dvbs_s2_ops = {
3942        .delsys = { SYS_DVBS, SYS_DVBS2 },
3943        .info = {
3944                .name           = "Sony CXD2841ER DVB-S/S2 demodulator",
3945                .frequency_min  = 500000,
3946                .frequency_max  = 2500000,
3947                .frequency_stepsize     = 0,
3948                .symbol_rate_min = 1000000,
3949                .symbol_rate_max = 45000000,
3950                .symbol_rate_tolerance = 500,
3951                .caps = FE_CAN_INVERSION_AUTO |
3952                        FE_CAN_FEC_AUTO |
3953                        FE_CAN_QPSK,
3954        },
3955        .init = cxd2841er_init_s,
3956        .sleep = cxd2841er_sleep_s,
3957        .release = cxd2841er_release,
3958        .set_frontend = cxd2841er_set_frontend_s,
3959        .get_frontend = cxd2841er_get_frontend,
3960        .read_status = cxd2841er_read_status_s,
3961        .i2c_gate_ctrl = cxd2841er_i2c_gate_ctrl,
3962        .get_frontend_algo = cxd2841er_get_algo,
3963        .set_tone = cxd2841er_set_tone,
3964        .diseqc_send_burst = cxd2841er_send_burst,
3965        .diseqc_send_master_cmd = cxd2841er_send_diseqc_msg,
3966        .tune = cxd2841er_tune_s
3967};
3968
3969static struct dvb_frontend_ops cxd2841er_t_c_ops = {
3970        .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
3971        .info = {
3972                .name   = "", /* will set in attach function */
3973                .caps = FE_CAN_FEC_1_2 |
3974                        FE_CAN_FEC_2_3 |
3975                        FE_CAN_FEC_3_4 |
3976                        FE_CAN_FEC_5_6 |
3977                        FE_CAN_FEC_7_8 |
3978                        FE_CAN_FEC_AUTO |
3979                        FE_CAN_QPSK |
3980                        FE_CAN_QAM_16 |
3981                        FE_CAN_QAM_32 |
3982                        FE_CAN_QAM_64 |
3983                        FE_CAN_QAM_128 |
3984                        FE_CAN_QAM_256 |
3985                        FE_CAN_QAM_AUTO |
3986                        FE_CAN_TRANSMISSION_MODE_AUTO |
3987                        FE_CAN_GUARD_INTERVAL_AUTO |
3988                        FE_CAN_HIERARCHY_AUTO |
3989                        FE_CAN_MUTE_TS |
3990                        FE_CAN_2G_MODULATION,
3991                .frequency_min = 42000000,
3992                .frequency_max = 1002000000,
3993                .symbol_rate_min = 870000,
3994                .symbol_rate_max = 11700000
3995        },
3996        .init = cxd2841er_init_tc,
3997        .sleep = cxd2841er_shutdown_tc,
3998        .release = cxd2841er_release,
3999        .set_frontend = cxd2841er_set_frontend_tc,
4000        .get_frontend = cxd2841er_get_frontend,
4001        .read_status = cxd2841er_read_status_tc,
4002        .tune = cxd2841er_tune_tc,
4003        .i2c_gate_ctrl = cxd2841er_i2c_gate_ctrl,
4004        .get_frontend_algo = cxd2841er_get_algo
4005};
4006
4007MODULE_DESCRIPTION("Sony CXD2837/38/41/43/54ER DVB-C/C2/T/T2/S/S2 demodulator driver");
4008MODULE_AUTHOR("Sergey Kozlov <serjk@netup.ru>, Abylay Ospan <aospan@netup.ru>");
4009MODULE_LICENSE("GPL");
4010