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