git.oblomov.eu Git - linux-2.6/blob - drivers/media/dvb/frontends/tda1004x.c

   1   /*
   2      Driver for Philips tda1004xh OFDM Demodulator
   3
   4      (c) 2003, 2004 Andrew de Quincey & Robert Schlabbach
   5
   6      This program is free software; you can redistribute it and/or modify
   7      it under the terms of the GNU General Public License as published by
   8      the Free Software Foundation; either version 2 of the License, or
   9      (at your option) any later version.
  10
  11      This program is distributed in the hope that it will be useful,
  12      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14
  15      GNU General Public License for more details.
  16
  17      You should have received a copy of the GNU General Public License
  18      along with this program; if not, write to the Free Software
  19      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21    */
  22 /*
  23  * This driver needs external firmware. Please use the commands
  24  * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10045",
  25  * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10046" to
  26  * download/extract them, and then copy them to /usr/lib/hotplug/firmware.
  27  */
  28 #define TDA10045_DEFAULT_FIRMWARE "dvb-fe-tda10045.fw"
  29 #define TDA10046_DEFAULT_FIRMWARE "dvb-fe-tda10046.fw"
  30
  31 #include <linux/init.h>
  32 #include <linux/module.h>
  33 #include <linux/moduleparam.h>
  34 #include <linux/device.h>
  35 #include <linux/jiffies.h>
  36 #include <linux/string.h>
  37 #include <linux/slab.h>
  38
  39 #include "dvb_frontend.h"
  40 #include "tda1004x.h"
  41
  42 enum tda1004x_demod {
  43         TDA1004X_DEMOD_TDA10045,
  44         TDA1004X_DEMOD_TDA10046,
  45 };
  46
  47 struct tda1004x_state {
  48         struct i2c_adapter* i2c;
  49         struct dvb_frontend_ops ops;
  50         const struct tda1004x_config* config;
  51         struct dvb_frontend frontend;
  52
  53         /* private demod data */
  54         u8 initialised;
  55         enum tda1004x_demod demod_type;
  56 };
  57
  58 static int debug;
  59 #define dprintk(args...) \
  60         do { \
  61                 if (debug) printk(KERN_DEBUG "tda1004x: " args); \
  62         } while (0)
  63
  64 #define TDA1004X_CHIPID          0x00
  65 #define TDA1004X_AUTO            0x01
  66 #define TDA1004X_IN_CONF1        0x02
  67 #define TDA1004X_IN_CONF2        0x03
  68 #define TDA1004X_OUT_CONF1       0x04
  69 #define TDA1004X_OUT_CONF2       0x05
  70 #define TDA1004X_STATUS_CD       0x06
  71 #define TDA1004X_CONFC4          0x07
  72 #define TDA1004X_DSSPARE2        0x0C
  73 #define TDA10045H_CODE_IN        0x0D
  74 #define TDA10045H_FWPAGE         0x0E
  75 #define TDA1004X_SCAN_CPT        0x10
  76 #define TDA1004X_DSP_CMD         0x11
  77 #define TDA1004X_DSP_ARG         0x12
  78 #define TDA1004X_DSP_DATA1       0x13
  79 #define TDA1004X_DSP_DATA2       0x14
  80 #define TDA1004X_CONFADC1        0x15
  81 #define TDA1004X_CONFC1          0x16
  82 #define TDA10045H_S_AGC          0x1a
  83 #define TDA10046H_AGC_TUN_LEVEL  0x1a
  84 #define TDA1004X_SNR             0x1c
  85 #define TDA1004X_CONF_TS1        0x1e
  86 #define TDA1004X_CONF_TS2        0x1f
  87 #define TDA1004X_CBER_RESET      0x20
  88 #define TDA1004X_CBER_MSB        0x21
  89 #define TDA1004X_CBER_LSB        0x22
  90 #define TDA1004X_CVBER_LUT       0x23
  91 #define TDA1004X_VBER_MSB        0x24
  92 #define TDA1004X_VBER_MID        0x25
  93 #define TDA1004X_VBER_LSB        0x26
  94 #define TDA1004X_UNCOR           0x27
  95
  96 #define TDA10045H_CONFPLL_P      0x2D
  97 #define TDA10045H_CONFPLL_M_MSB  0x2E
  98 #define TDA10045H_CONFPLL_M_LSB  0x2F
  99 #define TDA10045H_CONFPLL_N      0x30
 100
 101 #define TDA10046H_CONFPLL1       0x2D
 102 #define TDA10046H_CONFPLL2       0x2F
 103 #define TDA10046H_CONFPLL3       0x30
 104 #define TDA10046H_TIME_WREF1     0x31
 105 #define TDA10046H_TIME_WREF2     0x32
 106 #define TDA10046H_TIME_WREF3     0x33
 107 #define TDA10046H_TIME_WREF4     0x34
 108 #define TDA10046H_TIME_WREF5     0x35
 109
 110 #define TDA10045H_UNSURW_MSB     0x31
 111 #define TDA10045H_UNSURW_LSB     0x32
 112 #define TDA10045H_WREF_MSB       0x33
 113 #define TDA10045H_WREF_MID       0x34
 114 #define TDA10045H_WREF_LSB       0x35
 115 #define TDA10045H_MUXOUT         0x36
 116 #define TDA1004X_CONFADC2        0x37
 117
 118 #define TDA10045H_IOFFSET        0x38
 119
 120 #define TDA10046H_CONF_TRISTATE1 0x3B
 121 #define TDA10046H_CONF_TRISTATE2 0x3C
 122 #define TDA10046H_CONF_POLARITY  0x3D
 123 #define TDA10046H_FREQ_OFFSET    0x3E
 124 #define TDA10046H_GPIO_OUT_SEL   0x41
 125 #define TDA10046H_GPIO_SELECT    0x42
 126 #define TDA10046H_AGC_CONF       0x43
 127 #define TDA10046H_AGC_THR        0x44
 128 #define TDA10046H_AGC_RENORM     0x45
 129 #define TDA10046H_AGC_GAINS      0x46
 130 #define TDA10046H_AGC_TUN_MIN    0x47
 131 #define TDA10046H_AGC_TUN_MAX    0x48
 132 #define TDA10046H_AGC_IF_MIN     0x49
 133 #define TDA10046H_AGC_IF_MAX     0x4A
 134
 135 #define TDA10046H_FREQ_PHY2_MSB  0x4D
 136 #define TDA10046H_FREQ_PHY2_LSB  0x4E
 137
 138 #define TDA10046H_CVBER_CTRL     0x4F
 139 #define TDA10046H_AGC_IF_LEVEL   0x52
 140 #define TDA10046H_CODE_CPT       0x57
 141 #define TDA10046H_CODE_IN        0x58
 142
 143
 144 static int tda1004x_write_byteI(struct tda1004x_state *state, int reg, int data)
 145 {
 146         int ret;
 147         u8 buf[] = { reg, data };
 148         struct i2c_msg msg = { .flags = 0, .buf = buf, .len = 2 };
 149
 150         dprintk("%s: reg=0x%x, data=0x%x\n", __FUNCTION__, reg, data);
 151
 152         msg.addr = state->config->demod_address;
 153         ret = i2c_transfer(state->i2c, &msg, 1);
 154
 155         if (ret != 1)
 156                 dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
 157                         __FUNCTION__, reg, data, ret);
 158
 159         dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __FUNCTION__,
 160                 reg, data, ret);
 161         return (ret != 1) ? -1 : 0;
 162 }
 163
 164 static int tda1004x_read_byte(struct tda1004x_state *state, int reg)
 165 {
 166         int ret;
 167         u8 b0[] = { reg };
 168         u8 b1[] = { 0 };
 169         struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
 170                                 { .flags = I2C_M_RD, .buf = b1, .len = 1 }};
 171
 172         dprintk("%s: reg=0x%x\n", __FUNCTION__, reg);
 173
 174         msg[0].addr = state->config->demod_address;
 175         msg[1].addr = state->config->demod_address;
 176         ret = i2c_transfer(state->i2c, msg, 2);
 177
 178         if (ret != 2) {
 179                 dprintk("%s: error reg=0x%x, ret=%i\n", __FUNCTION__, reg,
 180                         ret);
 181                 return -1;
 182         }
 183
 184         dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __FUNCTION__,
 185                 reg, b1[0], ret);
 186         return b1[0];
 187 }
 188
 189 static int tda1004x_write_mask(struct tda1004x_state *state, int reg, int mask, int data)
 190 {
 191         int val;
 192         dprintk("%s: reg=0x%x, mask=0x%x, data=0x%x\n", __FUNCTION__, reg,
 193                 mask, data);
 194
 195         // read a byte and check
 196         val = tda1004x_read_byte(state, reg);
 197         if (val < 0)
 198                 return val;
 199
 200         // mask if off
 201         val = val & ~mask;
 202         val |= data & 0xff;
 203
 204         // write it out again
 205         return tda1004x_write_byteI(state, reg, val);
 206 }
 207
 208 static int tda1004x_write_buf(struct tda1004x_state *state, int reg, unsigned char *buf, int len)
 209 {
 210         int i;
 211         int result;
 212
 213         dprintk("%s: reg=0x%x, len=0x%x\n", __FUNCTION__, reg, len);
 214
 215         result = 0;
 216         for (i = 0; i < len; i++) {
 217                 result = tda1004x_write_byteI(state, reg + i, buf[i]);
 218                 if (result != 0)
 219                         break;
 220         }
 221
 222         return result;
 223 }
 224
 225 static int tda1004x_enable_tuner_i2c(struct tda1004x_state *state)
 226 {
 227         int result;
 228         dprintk("%s\n", __FUNCTION__);
 229
 230         result = tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 2);
 231         msleep(1);
 232         return result;
 233 }
 234
 235 static int tda1004x_disable_tuner_i2c(struct tda1004x_state *state)
 236 {
 237         dprintk("%s\n", __FUNCTION__);
 238
 239         return tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 0);
 240 }
 241
 242 static int tda10045h_set_bandwidth(struct tda1004x_state *state,
 243                                    fe_bandwidth_t bandwidth)
 244 {
 245         static u8 bandwidth_6mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x60, 0x1e, 0xa7, 0x45, 0x4f };
 246         static u8 bandwidth_7mhz[] = { 0x02, 0x00, 0x37, 0x00, 0x4a, 0x2f, 0x6d, 0x76, 0xdb };
 247         static u8 bandwidth_8mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x48, 0x17, 0x89, 0xc7, 0x14 };
 248
 249         switch (bandwidth) {
 250         case BANDWIDTH_6_MHZ:
 251                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_6mhz, sizeof(bandwidth_6mhz));
 252                 break;
 253
 254         case BANDWIDTH_7_MHZ:
 255                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_7mhz, sizeof(bandwidth_7mhz));
 256                 break;
 257
 258         case BANDWIDTH_8_MHZ:
 259                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_8mhz, sizeof(bandwidth_8mhz));
 260                 break;
 261
 262         default:
 263                 return -EINVAL;
 264         }
 265
 266         tda1004x_write_byteI(state, TDA10045H_IOFFSET, 0);
 267
 268         return 0;
 269 }
 270
 271 static int tda10046h_set_bandwidth(struct tda1004x_state *state,
 272                                    fe_bandwidth_t bandwidth)
 273 {
 274         static u8 bandwidth_6mhz[] = { 0x80, 0x15, 0xfe, 0xab, 0x8e };
 275         static u8 bandwidth_7mhz[] = { 0x6e, 0x02, 0x53, 0xc8, 0x25 };
 276         static u8 bandwidth_8mhz[] = { 0x60, 0x12, 0xa8, 0xe4, 0xbd };
 277
 278         switch (bandwidth) {
 279         case BANDWIDTH_6_MHZ:
 280                 tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz, sizeof(bandwidth_6mhz));
 281                 if (state->config->if_freq == TDA10046_FREQ_045) {
 282                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x09);
 283                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x4f);
 284                 }
 285                 break;
 286
 287         case BANDWIDTH_7_MHZ:
 288                 tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz, sizeof(bandwidth_7mhz));
 289                 if (state->config->if_freq == TDA10046_FREQ_045) {
 290                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0a);
 291                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x79);
 292                 }
 293                 break;
 294
 295         case BANDWIDTH_8_MHZ:
 296                 tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz, sizeof(bandwidth_8mhz));
 297                 if (state->config->if_freq == TDA10046_FREQ_045) {
 298                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0b);
 299                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xa3);
 300                 }
 301                 break;
 302
 303         default:
 304                 return -EINVAL;
 305         }
 306
 307         return 0;
 308 }
 309
 310 static int tda1004x_do_upload(struct tda1004x_state *state,
 311                               unsigned char *mem, unsigned int len,
 312                               u8 dspCodeCounterReg, u8 dspCodeInReg)
 313 {
 314         u8 buf[65];
 315         struct i2c_msg fw_msg = { .flags = 0, .buf = buf, .len = 0 };
 316         int tx_size;
 317         int pos = 0;
 318
 319         /* clear code counter */
 320         tda1004x_write_byteI(state, dspCodeCounterReg, 0);
 321         fw_msg.addr = state->config->demod_address;
 322
 323         buf[0] = dspCodeInReg;
 324         while (pos != len) {
 325                 // work out how much to send this time
 326                 tx_size = len - pos;
 327                 if (tx_size > 0x10)
 328                         tx_size = 0x10;
 329
 330                 // send the chunk
 331                 memcpy(buf + 1, mem + pos, tx_size);
 332                 fw_msg.len = tx_size + 1;
 333                 if (i2c_transfer(state->i2c, &fw_msg, 1) != 1) {
 334                         printk(KERN_ERR "tda1004x: Error during firmware upload\n");
 335                         return -EIO;
 336                 }
 337                 pos += tx_size;
 338
 339                 dprintk("%s: fw_pos=0x%x\n", __FUNCTION__, pos);
 340         }
 341         // give the DSP a chance to settle 03/10/05 Hac
 342         msleep(100);
 343
 344         return 0;
 345 }
 346
 347 static int tda1004x_check_upload_ok(struct tda1004x_state *state)
 348 {
 349         u8 data1, data2;
 350         unsigned long timeout;
 351
 352         if (state->demod_type == TDA1004X_DEMOD_TDA10046) {
 353                 timeout = jiffies + 2 * HZ;
 354                 while(!(tda1004x_read_byte(state, TDA1004X_STATUS_CD) & 0x20)) {
 355                         if (time_after(jiffies, timeout)) {
 356                                 printk(KERN_ERR "tda1004x: timeout waiting for DSP ready\n");
 357                                 break;
 358                         }
 359                         msleep(1);
 360                 }
 361         } else
 362                 msleep(100);
 363
 364         // check upload was OK
 365         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0); // we want to read from the DSP
 366         tda1004x_write_byteI(state, TDA1004X_DSP_CMD, 0x67);
 367
 368         data1 = tda1004x_read_byte(state, TDA1004X_DSP_DATA1);
 369         data2 = tda1004x_read_byte(state, TDA1004X_DSP_DATA2);
 370         if (data1 != 0x67 || data2 < 0x20 || data2 > 0x2e) {
 371                 printk(KERN_INFO "tda1004x: found firmware revision %x -- invalid\n", data2);
 372                 return -EIO;
 373         }
 374         printk(KERN_INFO "tda1004x: found firmware revision %x -- ok\n", data2);
 375         return 0;
 376 }
 377
 378 static int tda10045_fwupload(struct dvb_frontend* fe)
 379 {
 380         struct tda1004x_state* state = fe->demodulator_priv;
 381         int ret;
 382         const struct firmware *fw;
 383
 384         /* don't re-upload unless necessary */
 385         if (tda1004x_check_upload_ok(state) == 0)
 386                 return 0;
 387
 388         /* request the firmware, this will block until someone uploads it */
 389         printk(KERN_INFO "tda1004x: waiting for firmware upload (%s)...\n", TDA10045_DEFAULT_FIRMWARE);
 390         ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE);
 391         if (ret) {
 392                 printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n");
 393                 return ret;
 394         }
 395
 396         /* reset chip */
 397         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0);
 398         tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8);
 399         tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0);
 400         msleep(10);
 401
 402         /* set parameters */
 403         tda10045h_set_bandwidth(state, BANDWIDTH_8_MHZ);
 404
 405         ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10045H_FWPAGE, TDA10045H_CODE_IN);
 406         release_firmware(fw);
 407         if (ret)
 408                 return ret;
 409         printk(KERN_INFO "tda1004x: firmware upload complete\n");
 410
 411         /* wait for DSP to initialise */
 412         /* DSPREADY doesn't seem to work on the TDA10045H */
 413         msleep(100);
 414
 415         return tda1004x_check_upload_ok(state);
 416 }
 417
 418 static void tda10046_init_plls(struct dvb_frontend* fe)
 419 {
 420         struct tda1004x_state* state = fe->demodulator_priv;
 421
 422         tda1004x_write_byteI(state, TDA10046H_CONFPLL1, 0xf0);
 423         tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 10); // PLL M = 10
 424         if (state->config->xtal_freq == TDA10046_XTAL_4M ) {
 425                 dprintk("%s: setting up PLLs for a 4 MHz Xtal\n", __FUNCTION__);
 426                 tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0); // PLL P = N = 0
 427         } else {
 428                 dprintk("%s: setting up PLLs for a 16 MHz Xtal\n", __FUNCTION__);
 429                 tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 3); // PLL P = 0, N = 3
 430         }
 431         tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 99);
 432         switch (state->config->if_freq) {
 433         case TDA10046_FREQ_3617:
 434                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd4);
 435                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x2c);
 436                 break;
 437         case TDA10046_FREQ_3613:
 438                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd4);
 439                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x13);
 440                 break;
 441         case TDA10046_FREQ_045:
 442                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0b);
 443                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xa3);
 444                 break;
 445         case TDA10046_FREQ_052:
 446                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c);
 447                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x06);
 448                 break;
 449         }
 450         tda10046h_set_bandwidth(state, BANDWIDTH_8_MHZ); // default bandwidth 8 MHz
 451 }
 452
 453 static int tda10046_fwupload(struct dvb_frontend* fe)
 454 {
 455         struct tda1004x_state* state = fe->demodulator_priv;
 456         int ret;
 457         const struct firmware *fw;
 458
 459         /* reset + wake up chip */
 460         tda1004x_write_byteI(state, TDA1004X_CONFC4, 0);
 461         tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 1, 0);
 462         /* let the clocks recover from sleep */
 463         msleep(5);
 464
 465         /* don't re-upload unless necessary */
 466         if (tda1004x_check_upload_ok(state) == 0)
 467                 return 0;
 468
 469         /* set parameters */
 470         tda10046_init_plls(fe);
 471
 472         if (state->config->request_firmware != NULL) {
 473                 /* request the firmware, this will block until someone uploads it */
 474                 printk(KERN_INFO "tda1004x: waiting for firmware upload...\n");
 475                 ret = state->config->request_firmware(fe, &fw, TDA10046_DEFAULT_FIRMWARE);
 476                 if (ret) {
 477                         printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n");
 478                         return ret;
 479                 }
 480                 tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); // going to boot from HOST
 481                 ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10046H_CODE_CPT, TDA10046H_CODE_IN);
 482                 release_firmware(fw);
 483                 if (ret)
 484                         return ret;
 485         } else {
 486                 /* boot from firmware eeprom */
 487                 /* Hac Note: we might need to do some GPIO Magic here */
 488                 printk(KERN_INFO "tda1004x: booting from eeprom\n");
 489                 tda1004x_write_mask(state, TDA1004X_CONFC4, 4, 4);
 490                 msleep(300);
 491         }
 492         return tda1004x_check_upload_ok(state);
 493 }
 494
 495 static int tda1004x_encode_fec(int fec)
 496 {
 497         // convert known FEC values
 498         switch (fec) {
 499         case FEC_1_2:
 500                 return 0;
 501         case FEC_2_3:
 502                 return 1;
 503         case FEC_3_4:
 504                 return 2;
 505         case FEC_5_6:
 506                 return 3;
 507         case FEC_7_8:
 508                 return 4;
 509         }
 510
 511         // unsupported
 512         return -EINVAL;
 513 }
 514
 515 static int tda1004x_decode_fec(int tdafec)
 516 {
 517         // convert known FEC values
 518         switch (tdafec) {
 519         case 0:
 520                 return FEC_1_2;
 521         case 1:
 522                 return FEC_2_3;
 523         case 2:
 524                 return FEC_3_4;
 525         case 3:
 526                 return FEC_5_6;
 527         case 4:
 528                 return FEC_7_8;
 529         }
 530
 531         // unsupported
 532         return -1;
 533 }
 534
 535 int tda1004x_write_byte(struct dvb_frontend* fe, int reg, int data)
 536 {
 537         struct tda1004x_state* state = fe->demodulator_priv;
 538
 539         return tda1004x_write_byteI(state, reg, data);
 540 }
 541
 542 static int tda10045_init(struct dvb_frontend* fe)
 543 {
 544         struct tda1004x_state* state = fe->demodulator_priv;
 545
 546         dprintk("%s\n", __FUNCTION__);
 547
 548         if (state->initialised)
 549                 return 0;
 550
 551         if (tda10045_fwupload(fe)) {
 552                 printk("tda1004x: firmware upload failed\n");
 553                 return -EIO;
 554         }
 555
 556         tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0); // wake up the ADC
 557
 558         // Init the PLL
 559         if (state->config->pll_init) {
 560                 tda1004x_enable_tuner_i2c(state);
 561                 state->config->pll_init(fe);
 562                 tda1004x_disable_tuner_i2c(state);
 563         }
 564
 565         // tda setup
 566         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer
 567         tda1004x_write_mask(state, TDA1004X_AUTO, 8, 0); // select HP stream
 568         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x40, 0); // set polarity of VAGC signal
 569         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x80, 0x80); // enable pulse killer
 570         tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10); // enable auto offset
 571         tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0x0); // no frequency offset
 572         tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 0); // setup MPEG2 TS interface
 573         tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0); // setup MPEG2 TS interface
 574         tda1004x_write_mask(state, TDA1004X_VBER_MSB, 0xe0, 0xa0); // 10^6 VBER measurement bits
 575         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x10, 0); // VAGC polarity
 576         tda1004x_write_byteI(state, TDA1004X_CONFADC1, 0x2e);
 577
 578         tda1004x_write_mask(state, 0x1f, 0x01, state->config->invert_oclk);
 579
 580         state->initialised = 1;
 581         return 0;
 582 }
 583
 584 static int tda10046_init(struct dvb_frontend* fe)
 585 {
 586         struct tda1004x_state* state = fe->demodulator_priv;
 587         dprintk("%s\n", __FUNCTION__);
 588
 589         if (state->initialised)
 590                 return 0;
 591
 592         if (tda10046_fwupload(fe)) {
 593                 printk("tda1004x: firmware upload failed\n");
 594                         return -EIO;
 595         }
 596
 597         // Init the tuner PLL
 598         if (state->config->pll_init) {
 599                 tda1004x_enable_tuner_i2c(state);
 600                 state->config->pll_init(fe);
 601                 tda1004x_disable_tuner_i2c(state);
 602         }
 603
 604         // tda setup
 605         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer
 606         tda1004x_write_byteI(state, TDA1004X_AUTO, 7); // select HP stream
 607         tda1004x_write_byteI(state, TDA1004X_CONFC1, 8); // disable pulse killer
 608
 609         tda10046_init_plls(fe);
 610         switch (state->config->agc_config) {
 611         case TDA10046_AGC_DEFAULT:
 612                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x00); // AGC setup
 613                 tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
 614                 break;
 615         case TDA10046_AGC_IFO_AUTO_NEG:
 616                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
 617                 tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
 618                 break;
 619         case TDA10046_AGC_IFO_AUTO_POS:
 620                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
 621                 tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x00); // set AGC polarities
 622                 break;
 623         case TDA10046_AGC_TDA827X:
 624                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02);   // AGC setup
 625                 tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70);    // AGC Threshold
 626                 tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x0E); // Gain Renormalize
 627                 tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
 628                 break;
 629         }
 630         tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0x61); // Turn both AGC outputs on
 631         tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MIN, 0);    // }
 632         tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MAX, 0xff); // } AGC min/max values
 633         tda1004x_write_byteI(state, TDA10046H_AGC_IF_MIN, 0);     // }
 634         tda1004x_write_byteI(state, TDA10046H_AGC_IF_MAX, 0xff);  // }
 635         tda1004x_write_byteI(state, TDA10046H_AGC_GAINS, 1); // IF gain 2, TUN gain 1
 636         tda1004x_write_byteI(state, TDA10046H_CVBER_CTRL, 0x1a); // 10^6 VBER measurement bits
 637         tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 7); // MPEG2 interface config
 638         tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0xc0); // MPEG2 interface config
 639         tda1004x_write_mask(state, 0x3a, 0x80, state->config->invert_oclk << 7);
 640
 641         tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE2, 0xe1); // tristate setup
 642         tda1004x_write_byteI(state, TDA10046H_GPIO_OUT_SEL, 0xcc); // GPIO output config
 643         tda1004x_write_byteI(state, TDA10046H_GPIO_SELECT, 8); // GPIO select
 644
 645         state->initialised = 1;
 646         return 0;
 647 }
 648
 649 static int tda1004x_set_fe(struct dvb_frontend* fe,
 650                            struct dvb_frontend_parameters *fe_params)
 651 {
 652         struct tda1004x_state* state = fe->demodulator_priv;
 653         int tmp;
 654         int inversion;
 655
 656         dprintk("%s\n", __FUNCTION__);
 657
 658         if (state->demod_type == TDA1004X_DEMOD_TDA10046) {
 659                 // setup auto offset
 660                 tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10);
 661                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x80, 0);
 662                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0);
 663
 664                 // disable agc_conf[2]
 665                 tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 0);
 666         }
 667
 668         // set frequency
 669         tda1004x_enable_tuner_i2c(state);
 670         state->config->pll_set(fe, fe_params);
 671         tda1004x_disable_tuner_i2c(state);
 672
 673         // Hardcoded to use auto as much as possible on the TDA10045 as it
 674         // is very unreliable if AUTO mode is _not_ used.
 675         if (state->demod_type == TDA1004X_DEMOD_TDA10045) {
 676                 fe_params->u.ofdm.code_rate_HP = FEC_AUTO;
 677                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO;
 678                 fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO;
 679         }
 680
 681         // Set standard params.. or put them to auto
 682         if ((fe_params->u.ofdm.code_rate_HP == FEC_AUTO) ||
 683             (fe_params->u.ofdm.code_rate_LP == FEC_AUTO) ||
 684             (fe_params->u.ofdm.constellation == QAM_AUTO) ||
 685             (fe_params->u.ofdm.hierarchy_information == HIERARCHY_AUTO)) {
 686                 tda1004x_write_mask(state, TDA1004X_AUTO, 1, 1);        // enable auto
 687                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x03, 0); // turn off constellation bits
 688                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0); // turn off hierarchy bits
 689                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x3f, 0); // turn off FEC bits
 690         } else {
 691                 tda1004x_write_mask(state, TDA1004X_AUTO, 1, 0);        // disable auto
 692
 693                 // set HP FEC
 694                 tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_HP);
 695                 if (tmp < 0)
 696                         return tmp;
 697                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 7, tmp);
 698
 699                 // set LP FEC
 700                 tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_LP);
 701                 if (tmp < 0)
 702                         return tmp;
 703                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x38, tmp << 3);
 704
 705                 // set constellation
 706                 switch (fe_params->u.ofdm.constellation) {
 707                 case QPSK:
 708                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 0);
 709                         break;
 710
 711                 case QAM_16:
 712                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 1);
 713                         break;
 714
 715                 case QAM_64:
 716                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 2);
 717                         break;
 718
 719                 default:
 720                         return -EINVAL;
 721                 }
 722
 723                 // set hierarchy
 724                 switch (fe_params->u.ofdm.hierarchy_information) {
 725                 case HIERARCHY_NONE:
 726                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0 << 5);
 727                         break;
 728
 729                 case HIERARCHY_1:
 730                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 1 << 5);
 731                         break;
 732
 733                 case HIERARCHY_2:
 734                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 2 << 5);
 735                         break;
 736
 737                 case HIERARCHY_4:
 738                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 3 << 5);
 739                         break;
 740
 741                 default:
 742                         return -EINVAL;
 743                 }
 744         }
 745
 746         // set bandwidth
 747         switch (state->demod_type) {
 748         case TDA1004X_DEMOD_TDA10045:
 749                 tda10045h_set_bandwidth(state, fe_params->u.ofdm.bandwidth);
 750                 break;
 751
 752         case TDA1004X_DEMOD_TDA10046:
 753                 tda10046h_set_bandwidth(state, fe_params->u.ofdm.bandwidth);
 754                 break;
 755         }
 756
 757         // set inversion
 758         inversion = fe_params->inversion;
 759         if (state->config->invert)
 760                 inversion = inversion ? INVERSION_OFF : INVERSION_ON;
 761         switch (inversion) {
 762         case INVERSION_OFF:
 763                 tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0);
 764                 break;
 765
 766         case INVERSION_ON:
 767                 tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0x20);
 768                 break;
 769
 770         default:
 771                 return -EINVAL;
 772         }
 773
 774         // set guard interval
 775         switch (fe_params->u.ofdm.guard_interval) {
 776         case GUARD_INTERVAL_1_32:
 777                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
 778                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2);
 779                 break;
 780
 781         case GUARD_INTERVAL_1_16:
 782                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
 783                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 1 << 2);
 784                 break;
 785
 786         case GUARD_INTERVAL_1_8:
 787                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
 788                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 2 << 2);
 789                 break;
 790
 791         case GUARD_INTERVAL_1_4:
 792                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
 793                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 3 << 2);
 794                 break;
 795
 796         case GUARD_INTERVAL_AUTO:
 797                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 2);
 798                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2);
 799                 break;
 800
 801         default:
 802                 return -EINVAL;
 803         }
 804
 805         // set transmission mode
 806         switch (fe_params->u.ofdm.transmission_mode) {
 807         case TRANSMISSION_MODE_2K:
 808                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0);
 809                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0 << 4);
 810                 break;
 811
 812         case TRANSMISSION_MODE_8K:
 813                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0);
 814                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 1 << 4);
 815                 break;
 816
 817         case TRANSMISSION_MODE_AUTO:
 818                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 4);
 819                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0);
 820                 break;
 821
 822         default:
 823                 return -EINVAL;
 824         }
 825
 826         // start the lock
 827         switch (state->demod_type) {
 828         case TDA1004X_DEMOD_TDA10045:
 829                 tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8);
 830                 tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0);
 831                 break;
 832
 833         case TDA1004X_DEMOD_TDA10046:
 834                 tda1004x_write_mask(state, TDA1004X_AUTO, 0x40, 0x40);
 835                 break;
 836         }
 837
 838         msleep(10);
 839
 840         return 0;
 841 }
 842
 843 static int tda1004x_get_fe(struct dvb_frontend* fe, struct dvb_frontend_parameters *fe_params)
 844 {
 845         struct tda1004x_state* state = fe->demodulator_priv;
 846         dprintk("%s\n", __FUNCTION__);
 847
 848         // inversion status
 849         fe_params->inversion = INVERSION_OFF;
 850         if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)
 851                 fe_params->inversion = INVERSION_ON;
 852         if (state->config->invert)
 853                 fe_params->inversion = fe_params->inversion ? INVERSION_OFF : INVERSION_ON;
 854
 855         // bandwidth
 856         switch (state->demod_type) {
 857         case TDA1004X_DEMOD_TDA10045:
 858                 switch (tda1004x_read_byte(state, TDA10045H_WREF_LSB)) {
 859                 case 0x14:
 860                         fe_params->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
 861                         break;
 862                 case 0xdb:
 863                         fe_params->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
 864                         break;
 865                 case 0x4f:
 866                         fe_params->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
 867                         break;
 868                 }
 869                 break;
 870
 871         case TDA1004X_DEMOD_TDA10046:
 872                 switch (tda1004x_read_byte(state, TDA10046H_TIME_WREF1)) {
 873                 case 0x60:
 874                         fe_params->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
 875                         break;
 876                 case 0x6e:
 877                         fe_params->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
 878                         break;
 879                 case 0x80:
 880                         fe_params->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
 881                         break;
 882                 }
 883                 break;
 884         }
 885
 886         // FEC
 887         fe_params->u.ofdm.code_rate_HP =
 888             tda1004x_decode_fec(tda1004x_read_byte(state, TDA1004X_OUT_CONF2) & 7);
 889         fe_params->u.ofdm.code_rate_LP =
 890             tda1004x_decode_fec((tda1004x_read_byte(state, TDA1004X_OUT_CONF2) >> 3) & 7);
 891
 892         // constellation
 893         switch (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 3) {
 894         case 0:
 895                 fe_params->u.ofdm.constellation = QPSK;
 896                 break;
 897         case 1:
 898                 fe_params->u.ofdm.constellation = QAM_16;
 899                 break;
 900         case 2:
 901                 fe_params->u.ofdm.constellation = QAM_64;
 902                 break;
 903         }
 904
 905         // transmission mode
 906         fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
 907         if (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x10)
 908                 fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
 909
 910         // guard interval
 911         switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x0c) >> 2) {
 912         case 0:
 913                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
 914                 break;
 915         case 1:
 916                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
 917                 break;
 918         case 2:
 919                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
 920                 break;
 921         case 3:
 922                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
 923                 break;
 924         }
 925
 926         // hierarchy
 927         switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x60) >> 5) {
 928         case 0:
 929                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_NONE;
 930                 break;
 931         case 1:
 932                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_1;
 933                 break;
 934         case 2:
 935                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_2;
 936                 break;
 937         case 3:
 938                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_4;
 939                 break;
 940         }
 941
 942         return 0;
 943 }
 944
 945 static int tda1004x_read_status(struct dvb_frontend* fe, fe_status_t * fe_status)
 946 {
 947         struct tda1004x_state* state = fe->demodulator_priv;
 948         int status;
 949         int cber;
 950         int vber;
 951
 952         dprintk("%s\n", __FUNCTION__);
 953
 954         // read status
 955         status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
 956         if (status == -1)
 957                 return -EIO;
 958
 959         // decode
 960         *fe_status = 0;
 961         if (status & 4)
 962                 *fe_status |= FE_HAS_SIGNAL;
 963         if (status & 2)
 964                 *fe_status |= FE_HAS_CARRIER;
 965         if (status & 8)
 966                 *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
 967
 968         // if we don't already have VITERBI (i.e. not LOCKED), see if the viterbi
 969         // is getting anything valid
 970         if (!(*fe_status & FE_HAS_VITERBI)) {
 971                 // read the CBER
 972                 cber = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
 973                 if (cber == -1)
 974                         return -EIO;
 975                 status = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
 976                 if (status == -1)
 977                         return -EIO;
 978                 cber |= (status << 8);
 979                 tda1004x_read_byte(state, TDA1004X_CBER_RESET);
 980
 981                 if (cber != 65535)
 982                         *fe_status |= FE_HAS_VITERBI;
 983         }
 984
 985         // if we DO have some valid VITERBI output, but don't already have SYNC
 986         // bytes (i.e. not LOCKED), see if the RS decoder is getting anything valid.
 987         if ((*fe_status & FE_HAS_VITERBI) && (!(*fe_status & FE_HAS_SYNC))) {
 988                 // read the VBER
 989                 vber = tda1004x_read_byte(state, TDA1004X_VBER_LSB);
 990                 if (vber == -1)
 991                         return -EIO;
 992                 status = tda1004x_read_byte(state, TDA1004X_VBER_MID);
 993                 if (status == -1)
 994                         return -EIO;
 995                 vber |= (status << 8);
 996                 status = tda1004x_read_byte(state, TDA1004X_VBER_MSB);
 997                 if (status == -1)
 998                         return -EIO;
 999                 vber |= ((status << 16) & 0x0f);
1000                 tda1004x_read_byte(state, TDA1004X_CVBER_LUT);
1001
1002                 // if RS has passed some valid TS packets, then we must be
1003                 // getting some SYNC bytes
1004                 if (vber < 16632)
1005                         *fe_status |= FE_HAS_SYNC;
1006         }
1007
1008         // success
1009         dprintk("%s: fe_status=0x%x\n", __FUNCTION__, *fe_status);
1010         return 0;
1011 }
1012
1013 static int tda1004x_read_signal_strength(struct dvb_frontend* fe, u16 * signal)
1014 {
1015         struct tda1004x_state* state = fe->demodulator_priv;
1016         int tmp;
1017         int reg = 0;
1018
1019         dprintk("%s\n", __FUNCTION__);
1020
1021         // determine the register to use
1022         switch (state->demod_type) {
1023         case TDA1004X_DEMOD_TDA10045:
1024                 reg = TDA10045H_S_AGC;
1025                 break;
1026
1027         case TDA1004X_DEMOD_TDA10046:
1028                 reg = TDA10046H_AGC_IF_LEVEL;
1029                 break;
1030         }
1031
1032         // read it
1033         tmp = tda1004x_read_byte(state, reg);
1034         if (tmp < 0)
1035                 return -EIO;
1036
1037         *signal = (tmp << 8) | tmp;
1038         dprintk("%s: signal=0x%x\n", __FUNCTION__, *signal);
1039         return 0;
1040 }
1041
1042 static int tda1004x_read_snr(struct dvb_frontend* fe, u16 * snr)
1043 {
1044         struct tda1004x_state* state = fe->demodulator_priv;
1045         int tmp;
1046
1047         dprintk("%s\n", __FUNCTION__);
1048
1049         // read it
1050         tmp = tda1004x_read_byte(state, TDA1004X_SNR);
1051         if (tmp < 0)
1052                 return -EIO;
1053         tmp = 255 - tmp;
1054
1055         *snr = ((tmp << 8) | tmp);
1056         dprintk("%s: snr=0x%x\n", __FUNCTION__, *snr);
1057         return 0;
1058 }
1059
1060 static int tda1004x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
1061 {
1062         struct tda1004x_state* state = fe->demodulator_priv;
1063         int tmp;
1064         int tmp2;
1065         int counter;
1066
1067         dprintk("%s\n", __FUNCTION__);
1068
1069         // read the UCBLOCKS and reset
1070         counter = 0;
1071         tmp = tda1004x_read_byte(state, TDA1004X_UNCOR);
1072         if (tmp < 0)
1073                 return -EIO;
1074         tmp &= 0x7f;
1075         while (counter++ < 5) {
1076                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1077                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1078                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1079
1080                 tmp2 = tda1004x_read_byte(state, TDA1004X_UNCOR);
1081                 if (tmp2 < 0)
1082                         return -EIO;
1083                 tmp2 &= 0x7f;
1084                 if ((tmp2 < tmp) || (tmp2 == 0))
1085                         break;
1086         }
1087
1088         if (tmp != 0x7f)
1089                 *ucblocks = tmp;
1090         else
1091                 *ucblocks = 0xffffffff;
1092
1093         dprintk("%s: ucblocks=0x%x\n", __FUNCTION__, *ucblocks);
1094         return 0;
1095 }
1096
1097 static int tda1004x_read_ber(struct dvb_frontend* fe, u32* ber)
1098 {
1099         struct tda1004x_state* state = fe->demodulator_priv;
1100         int tmp;
1101
1102         dprintk("%s\n", __FUNCTION__);
1103
1104         // read it in
1105         tmp = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
1106         if (tmp < 0)
1107                 return -EIO;
1108         *ber = tmp << 1;
1109         tmp = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
1110         if (tmp < 0)
1111                 return -EIO;
1112         *ber |= (tmp << 9);
1113         tda1004x_read_byte(state, TDA1004X_CBER_RESET);
1114
1115         dprintk("%s: ber=0x%x\n", __FUNCTION__, *ber);
1116         return 0;
1117 }
1118
1119 static int tda1004x_sleep(struct dvb_frontend* fe)
1120 {
1121         struct tda1004x_state* state = fe->demodulator_priv;
1122
1123         switch (state->demod_type) {
1124         case TDA1004X_DEMOD_TDA10045:
1125                 tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0x10);
1126                 break;
1127
1128         case TDA1004X_DEMOD_TDA10046:
1129                 if (state->config->pll_sleep != NULL) {
1130                         tda1004x_enable_tuner_i2c(state);
1131                         state->config->pll_sleep(fe);
1132                         tda1004x_disable_tuner_i2c(state);
1133                 }
1134                 tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1);
1135                 break;
1136         }
1137         state->initialised = 0;
1138
1139         return 0;
1140 }
1141
1142 static int tda1004x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
1143 {
1144         fesettings->min_delay_ms = 800;
1145         /* Drift compensation makes no sense for DVB-T */
1146         fesettings->step_size = 0;
1147         fesettings->max_drift = 0;
1148         return 0;
1149 }
1150
1151 static void tda1004x_release(struct dvb_frontend* fe)
1152 {
1153         struct tda1004x_state *state = fe->demodulator_priv;
1154         kfree(state);
1155 }
1156
1157 static struct dvb_frontend_ops tda10045_ops = {
1158         .info = {
1159                 .name = "Philips TDA10045H DVB-T",
1160                 .type = FE_OFDM,
1161                 .frequency_min = 51000000,
1162                 .frequency_max = 858000000,
1163                 .frequency_stepsize = 166667,
1164                 .caps =
1165                     FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1166                     FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1167                     FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
1168                     FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
1169         },
1170
1171         .release = tda1004x_release,
1172
1173         .init = tda10045_init,
1174         .sleep = tda1004x_sleep,
1175
1176         .set_frontend = tda1004x_set_fe,
1177         .get_frontend = tda1004x_get_fe,
1178         .get_tune_settings = tda1004x_get_tune_settings,
1179
1180         .read_status = tda1004x_read_status,
1181         .read_ber = tda1004x_read_ber,
1182         .read_signal_strength = tda1004x_read_signal_strength,
1183         .read_snr = tda1004x_read_snr,
1184         .read_ucblocks = tda1004x_read_ucblocks,
1185 };
1186
1187 struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
1188                                      struct i2c_adapter* i2c)
1189 {
1190         struct tda1004x_state *state;
1191
1192         /* allocate memory for the internal state */
1193         state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
1194         if (!state)
1195                 return NULL;
1196
1197         /* setup the state */
1198         state->config = config;
1199         state->i2c = i2c;
1200         memcpy(&state->ops, &tda10045_ops, sizeof(struct dvb_frontend_ops));
1201         state->initialised = 0;
1202         state->demod_type = TDA1004X_DEMOD_TDA10045;
1203
1204         /* check if the demod is there */
1205         if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x25) {
1206                 kfree(state);
1207                 return NULL;
1208         }
1209
1210         /* create dvb_frontend */
1211         state->frontend.ops = &state->ops;
1212         state->frontend.demodulator_priv = state;
1213         return &state->frontend;
1214 }
1215
1216 static struct dvb_frontend_ops tda10046_ops = {
1217         .info = {
1218                 .name = "Philips TDA10046H DVB-T",
1219                 .type = FE_OFDM,
1220                 .frequency_min = 51000000,
1221                 .frequency_max = 858000000,
1222                 .frequency_stepsize = 166667,
1223                 .caps =
1224                     FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1225                     FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1226                     FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
1227                     FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
1228         },
1229
1230         .release = tda1004x_release,
1231
1232         .init = tda10046_init,
1233         .sleep = tda1004x_sleep,
1234
1235         .set_frontend = tda1004x_set_fe,
1236         .get_frontend = tda1004x_get_fe,
1237         .get_tune_settings = tda1004x_get_tune_settings,
1238
1239         .read_status = tda1004x_read_status,
1240         .read_ber = tda1004x_read_ber,
1241         .read_signal_strength = tda1004x_read_signal_strength,
1242         .read_snr = tda1004x_read_snr,
1243         .read_ucblocks = tda1004x_read_ucblocks,
1244 };
1245
1246 struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
1247                                      struct i2c_adapter* i2c)
1248 {
1249         struct tda1004x_state *state;
1250
1251         /* allocate memory for the internal state */
1252         state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
1253         if (!state)
1254                 return NULL;
1255
1256         /* setup the state */
1257         state->config = config;
1258         state->i2c = i2c;
1259         memcpy(&state->ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
1260         state->initialised = 0;
1261         state->demod_type = TDA1004X_DEMOD_TDA10046;
1262
1263         /* check if the demod is there */
1264         if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) {
1265                 kfree(state);
1266                 return NULL;
1267         }
1268
1269         /* create dvb_frontend */
1270         state->frontend.ops = &state->ops;
1271         state->frontend.demodulator_priv = state;
1272         return &state->frontend;
1273 }
1274
1275 module_param(debug, int, 0644);
1276 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
1277
1278 MODULE_DESCRIPTION("Philips TDA10045H & TDA10046H DVB-T Demodulator");
1279 MODULE_AUTHOR("Andrew de Quincey & Robert Schlabbach");
1280 MODULE_LICENSE("GPL");
1281
1282 EXPORT_SYMBOL(tda10045_attach);
1283 EXPORT_SYMBOL(tda10046_attach);
1284 EXPORT_SYMBOL(tda1004x_write_byte);