Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | TDA10021 - Single Chip Cable Channel Receiver driver module |
Mauro Carvalho Chehab | 9101e62 | 2005-12-12 00:37:24 -0800 | [diff] [blame] | 3 | used on the the Siemens DVB-C cards |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | |
| 5 | Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> |
| 6 | Copyright (C) 2004 Markus Schulz <msc@antzsystem.de> |
Mauro Carvalho Chehab | 9101e62 | 2005-12-12 00:37:24 -0800 | [diff] [blame] | 7 | Support for TDA10021 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #include <linux/config.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/errno.h> |
| 27 | #include <linux/init.h> |
| 28 | #include <linux/kernel.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/string.h> |
| 31 | #include <linux/slab.h> |
| 32 | |
| 33 | #include "dvb_frontend.h" |
| 34 | #include "tda10021.h" |
| 35 | |
| 36 | |
| 37 | struct tda10021_state { |
| 38 | struct i2c_adapter* i2c; |
| 39 | struct dvb_frontend_ops ops; |
| 40 | /* configuration settings */ |
| 41 | const struct tda10021_config* config; |
| 42 | struct dvb_frontend frontend; |
| 43 | |
| 44 | u8 pwm; |
| 45 | u8 reg0; |
| 46 | }; |
| 47 | |
| 48 | |
| 49 | #if 0 |
| 50 | #define dprintk(x...) printk(x) |
| 51 | #else |
| 52 | #define dprintk(x...) |
| 53 | #endif |
| 54 | |
| 55 | static int verbose; |
| 56 | |
| 57 | #define XIN 57840000UL |
| 58 | #define DISABLE_INVERSION(reg0) do { reg0 |= 0x20; } while (0) |
| 59 | #define ENABLE_INVERSION(reg0) do { reg0 &= ~0x20; } while (0) |
| 60 | #define HAS_INVERSION(reg0) (!(reg0 & 0x20)) |
| 61 | |
| 62 | #define FIN (XIN >> 4) |
| 63 | |
| 64 | static int tda10021_inittab_size = 0x40; |
| 65 | static u8 tda10021_inittab[0x40]= |
| 66 | { |
| 67 | 0x73, 0x6a, 0x23, 0x0a, 0x02, 0x37, 0x77, 0x1a, |
| 68 | 0x37, 0x6a, 0x17, 0x8a, 0x1e, 0x86, 0x43, 0x40, |
| 69 | 0xb8, 0x3f, 0xa0, 0x00, 0xcd, 0x01, 0x00, 0xff, |
| 70 | 0x11, 0x00, 0x7c, 0x31, 0x30, 0x20, 0x00, 0x00, |
| 71 | 0x02, 0x00, 0x00, 0x7d, 0x00, 0x00, 0x00, 0x00, |
| 72 | 0x07, 0x00, 0x33, 0x11, 0x0d, 0x95, 0x08, 0x58, |
| 73 | 0x00, 0x00, 0x80, 0x00, 0x80, 0xff, 0x00, 0x00, |
| 74 | 0x04, 0x2d, 0x2f, 0xff, 0x00, 0x00, 0x00, 0x00, |
| 75 | }; |
| 76 | |
| 77 | static int tda10021_writereg (struct tda10021_state* state, u8 reg, u8 data) |
| 78 | { |
Mauro Carvalho Chehab | 9101e62 | 2005-12-12 00:37:24 -0800 | [diff] [blame] | 79 | u8 buf[] = { reg, data }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; |
Mauro Carvalho Chehab | 9101e62 | 2005-12-12 00:37:24 -0800 | [diff] [blame] | 81 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
| 83 | ret = i2c_transfer (state->i2c, &msg, 1); |
| 84 | if (ret != 1) |
| 85 | printk("DVB: TDA10021(%d): %s, writereg error " |
| 86 | "(reg == 0x%02x, val == 0x%02x, ret == %i)\n", |
| 87 | state->frontend.dvb->num, __FUNCTION__, reg, data, ret); |
| 88 | |
| 89 | msleep(10); |
| 90 | return (ret != 1) ? -EREMOTEIO : 0; |
| 91 | } |
| 92 | |
| 93 | static u8 tda10021_readreg (struct tda10021_state* state, u8 reg) |
| 94 | { |
| 95 | u8 b0 [] = { reg }; |
| 96 | u8 b1 [] = { 0 }; |
| 97 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 }, |
Michael Krufky | 50c25ff | 2006-01-09 15:25:34 -0200 | [diff] [blame] | 98 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | int ret; |
| 100 | |
| 101 | ret = i2c_transfer (state->i2c, msg, 2); |
| 102 | if (ret != 2) |
Jon Burgess | 88bdcc5 | 2005-09-27 21:45:26 -0700 | [diff] [blame] | 103 | printk("DVB: TDA10021: %s: readreg error (ret == %i)\n", |
| 104 | __FUNCTION__, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | return b1[0]; |
| 106 | } |
| 107 | |
| 108 | //get access to tuner |
| 109 | static int lock_tuner(struct tda10021_state* state) |
| 110 | { |
| 111 | u8 buf[2] = { 0x0f, tda10021_inittab[0x0f] | 0x80 }; |
| 112 | struct i2c_msg msg = {.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2}; |
| 113 | |
| 114 | if(i2c_transfer(state->i2c, &msg, 1) != 1) |
| 115 | { |
| 116 | printk("tda10021: lock tuner fails\n"); |
| 117 | return -EREMOTEIO; |
| 118 | } |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | //release access from tuner |
| 123 | static int unlock_tuner(struct tda10021_state* state) |
| 124 | { |
| 125 | u8 buf[2] = { 0x0f, tda10021_inittab[0x0f] & 0x7f }; |
| 126 | struct i2c_msg msg_post={.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2}; |
| 127 | |
| 128 | if(i2c_transfer(state->i2c, &msg_post, 1) != 1) |
| 129 | { |
| 130 | printk("tda10021: unlock tuner fails\n"); |
| 131 | return -EREMOTEIO; |
| 132 | } |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | static int tda10021_setup_reg0 (struct tda10021_state* state, u8 reg0, |
| 137 | fe_spectral_inversion_t inversion) |
| 138 | { |
| 139 | reg0 |= state->reg0 & 0x63; |
| 140 | |
| 141 | if (INVERSION_ON == inversion) |
| 142 | ENABLE_INVERSION(reg0); |
| 143 | else if (INVERSION_OFF == inversion) |
| 144 | DISABLE_INVERSION(reg0); |
| 145 | |
| 146 | tda10021_writereg (state, 0x00, reg0 & 0xfe); |
| 147 | tda10021_writereg (state, 0x00, reg0 | 0x01); |
| 148 | |
| 149 | state->reg0 = reg0; |
| 150 | return 0; |
| 151 | } |
| 152 | |
| 153 | static int tda10021_set_symbolrate (struct tda10021_state* state, u32 symbolrate) |
| 154 | { |
| 155 | s32 BDR; |
| 156 | s32 BDRI; |
| 157 | s16 SFIL=0; |
| 158 | u16 NDEC = 0; |
| 159 | u32 tmp, ratio; |
| 160 | |
| 161 | if (symbolrate > XIN/2) |
| 162 | symbolrate = XIN/2; |
| 163 | if (symbolrate < 500000) |
| 164 | symbolrate = 500000; |
| 165 | |
| 166 | if (symbolrate < XIN/16) NDEC = 1; |
| 167 | if (symbolrate < XIN/32) NDEC = 2; |
| 168 | if (symbolrate < XIN/64) NDEC = 3; |
| 169 | |
| 170 | if (symbolrate < (u32)(XIN/12.3)) SFIL = 1; |
| 171 | if (symbolrate < (u32)(XIN/16)) SFIL = 0; |
| 172 | if (symbolrate < (u32)(XIN/24.6)) SFIL = 1; |
| 173 | if (symbolrate < (u32)(XIN/32)) SFIL = 0; |
| 174 | if (symbolrate < (u32)(XIN/49.2)) SFIL = 1; |
| 175 | if (symbolrate < (u32)(XIN/64)) SFIL = 0; |
| 176 | if (symbolrate < (u32)(XIN/98.4)) SFIL = 1; |
| 177 | |
| 178 | symbolrate <<= NDEC; |
| 179 | ratio = (symbolrate << 4) / FIN; |
| 180 | tmp = ((symbolrate << 4) % FIN) << 8; |
| 181 | ratio = (ratio << 8) + tmp / FIN; |
| 182 | tmp = (tmp % FIN) << 8; |
| 183 | ratio = (ratio << 8) + (tmp + FIN/2) / FIN; |
| 184 | |
| 185 | BDR = ratio; |
| 186 | BDRI = (((XIN << 5) / symbolrate) + 1) / 2; |
| 187 | |
| 188 | if (BDRI > 0xFF) |
| 189 | BDRI = 0xFF; |
| 190 | |
| 191 | SFIL = (SFIL << 4) | tda10021_inittab[0x0E]; |
| 192 | |
| 193 | NDEC = (NDEC << 6) | tda10021_inittab[0x03]; |
| 194 | |
| 195 | tda10021_writereg (state, 0x03, NDEC); |
| 196 | tda10021_writereg (state, 0x0a, BDR&0xff); |
| 197 | tda10021_writereg (state, 0x0b, (BDR>> 8)&0xff); |
| 198 | tda10021_writereg (state, 0x0c, (BDR>>16)&0x3f); |
| 199 | |
| 200 | tda10021_writereg (state, 0x0d, BDRI); |
| 201 | tda10021_writereg (state, 0x0e, SFIL); |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | static int tda10021_init (struct dvb_frontend *fe) |
| 207 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 208 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | int i; |
| 210 | |
| 211 | dprintk("DVB: TDA10021(%d): init chip\n", fe->adapter->num); |
| 212 | |
| 213 | //tda10021_writereg (fe, 0, 0); |
| 214 | |
| 215 | for (i=0; i<tda10021_inittab_size; i++) |
| 216 | tda10021_writereg (state, i, tda10021_inittab[i]); |
| 217 | |
| 218 | tda10021_writereg (state, 0x34, state->pwm); |
| 219 | |
| 220 | //Comment by markus |
| 221 | //0x2A[3-0] == PDIV -> P multiplaying factor (P=PDIV+1)(default 0) |
| 222 | //0x2A[4] == BYPPLL -> Power down mode (default 1) |
| 223 | //0x2A[5] == LCK -> PLL Lock Flag |
| 224 | //0x2A[6] == POLAXIN -> Polarity of the input reference clock (default 0) |
| 225 | |
| 226 | //Activate PLL |
| 227 | tda10021_writereg(state, 0x2a, tda10021_inittab[0x2a] & 0xef); |
| 228 | |
| 229 | if (state->config->pll_init) { |
| 230 | lock_tuner(state); |
| 231 | state->config->pll_init(fe); |
| 232 | unlock_tuner(state); |
| 233 | } |
| 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | static int tda10021_set_parameters (struct dvb_frontend *fe, |
| 239 | struct dvb_frontend_parameters *p) |
| 240 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 241 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | |
| 243 | //table for QAM4-QAM256 ready QAM4 QAM16 QAM32 QAM64 QAM128 QAM256 |
| 244 | //CONF |
| 245 | static const u8 reg0x00 [] = { 0x14, 0x00, 0x04, 0x08, 0x0c, 0x10 }; |
| 246 | //AGCREF value |
| 247 | static const u8 reg0x01 [] = { 0x78, 0x8c, 0x8c, 0x6a, 0x78, 0x5c }; |
| 248 | //LTHR value |
| 249 | static const u8 reg0x05 [] = { 0x78, 0x87, 0x64, 0x46, 0x36, 0x26 }; |
| 250 | //MSETH |
| 251 | static const u8 reg0x08 [] = { 0x8c, 0xa2, 0x74, 0x43, 0x34, 0x23 }; |
| 252 | //AREF |
| 253 | static const u8 reg0x09 [] = { 0x96, 0x91, 0x96, 0x6a, 0x7e, 0x6b }; |
| 254 | |
| 255 | int qam = p->u.qam.modulation; |
| 256 | |
| 257 | if (qam < 0 || qam > 5) |
| 258 | return -EINVAL; |
| 259 | |
| 260 | //printk("tda10021: set frequency to %d qam=%d symrate=%d\n", p->frequency,qam,p->u.qam.symbol_rate); |
| 261 | |
| 262 | lock_tuner(state); |
| 263 | state->config->pll_set(fe, p); |
| 264 | unlock_tuner(state); |
| 265 | |
| 266 | tda10021_set_symbolrate (state, p->u.qam.symbol_rate); |
| 267 | tda10021_writereg (state, 0x34, state->pwm); |
| 268 | |
| 269 | tda10021_writereg (state, 0x01, reg0x01[qam]); |
| 270 | tda10021_writereg (state, 0x05, reg0x05[qam]); |
| 271 | tda10021_writereg (state, 0x08, reg0x08[qam]); |
| 272 | tda10021_writereg (state, 0x09, reg0x09[qam]); |
| 273 | |
| 274 | tda10021_setup_reg0 (state, reg0x00[qam], p->inversion); |
| 275 | |
| 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | static int tda10021_read_status(struct dvb_frontend* fe, fe_status_t* status) |
| 280 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 281 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | int sync; |
| 283 | |
| 284 | *status = 0; |
| 285 | //0x11[0] == EQALGO -> Equalizer algorithms state |
| 286 | //0x11[1] == CARLOCK -> Carrier locked |
| 287 | //0x11[2] == FSYNC -> Frame synchronisation |
| 288 | //0x11[3] == FEL -> Front End locked |
| 289 | //0x11[6] == NODVB -> DVB Mode Information |
| 290 | sync = tda10021_readreg (state, 0x11); |
| 291 | |
| 292 | if (sync & 2) |
| 293 | *status |= FE_HAS_SIGNAL|FE_HAS_CARRIER; |
| 294 | |
| 295 | if (sync & 4) |
| 296 | *status |= FE_HAS_SYNC|FE_HAS_VITERBI; |
| 297 | |
| 298 | if (sync & 8) |
| 299 | *status |= FE_HAS_LOCK; |
| 300 | |
| 301 | return 0; |
| 302 | } |
| 303 | |
| 304 | static int tda10021_read_ber(struct dvb_frontend* fe, u32* ber) |
| 305 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 306 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
| 308 | u32 _ber = tda10021_readreg(state, 0x14) | |
| 309 | (tda10021_readreg(state, 0x15) << 8) | |
| 310 | ((tda10021_readreg(state, 0x16) & 0x0f) << 16); |
| 311 | *ber = 10 * _ber; |
| 312 | |
| 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | static int tda10021_read_signal_strength(struct dvb_frontend* fe, u16* strength) |
| 317 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 318 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | |
| 320 | u8 gain = tda10021_readreg(state, 0x17); |
| 321 | *strength = (gain << 8) | gain; |
| 322 | |
| 323 | return 0; |
| 324 | } |
| 325 | |
| 326 | static int tda10021_read_snr(struct dvb_frontend* fe, u16* snr) |
| 327 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 328 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | u8 quality = ~tda10021_readreg(state, 0x18); |
| 331 | *snr = (quality << 8) | quality; |
| 332 | |
| 333 | return 0; |
| 334 | } |
| 335 | |
| 336 | static int tda10021_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) |
| 337 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 338 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
| 340 | *ucblocks = tda10021_readreg (state, 0x13) & 0x7f; |
| 341 | if (*ucblocks == 0x7f) |
| 342 | *ucblocks = 0xffffffff; |
| 343 | |
| 344 | /* reset uncorrected block counter */ |
| 345 | tda10021_writereg (state, 0x10, tda10021_inittab[0x10] & 0xdf); |
| 346 | tda10021_writereg (state, 0x10, tda10021_inittab[0x10]); |
| 347 | |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | static int tda10021_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) |
| 352 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 353 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | int sync; |
| 355 | s8 afc = 0; |
| 356 | |
| 357 | sync = tda10021_readreg(state, 0x11); |
| 358 | afc = tda10021_readreg(state, 0x19); |
| 359 | if (verbose) { |
| 360 | /* AFC only valid when carrier has been recovered */ |
| 361 | printk(sync & 2 ? "DVB: TDA10021(%d): AFC (%d) %dHz\n" : |
| 362 | "DVB: TDA10021(%d): [AFC (%d) %dHz]\n", |
| 363 | state->frontend.dvb->num, afc, |
| 364 | -((s32)p->u.qam.symbol_rate * afc) >> 10); |
| 365 | } |
| 366 | |
| 367 | p->inversion = HAS_INVERSION(state->reg0) ? INVERSION_ON : INVERSION_OFF; |
| 368 | p->u.qam.modulation = ((state->reg0 >> 2) & 7) + QAM_16; |
| 369 | |
| 370 | p->u.qam.fec_inner = FEC_NONE; |
| 371 | p->frequency = ((p->frequency + 31250) / 62500) * 62500; |
| 372 | |
| 373 | if (sync & 2) |
| 374 | p->frequency -= ((s32)p->u.qam.symbol_rate * afc) >> 10; |
| 375 | |
| 376 | return 0; |
| 377 | } |
| 378 | |
| 379 | static int tda10021_sleep(struct dvb_frontend* fe) |
| 380 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 381 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | |
| 383 | tda10021_writereg (state, 0x1b, 0x02); /* pdown ADC */ |
| 384 | tda10021_writereg (state, 0x00, 0x80); /* standby */ |
| 385 | |
| 386 | return 0; |
| 387 | } |
| 388 | |
| 389 | static void tda10021_release(struct dvb_frontend* fe) |
| 390 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 391 | struct tda10021_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | kfree(state); |
| 393 | } |
| 394 | |
| 395 | static struct dvb_frontend_ops tda10021_ops; |
| 396 | |
| 397 | struct dvb_frontend* tda10021_attach(const struct tda10021_config* config, |
| 398 | struct i2c_adapter* i2c, |
| 399 | u8 pwm) |
| 400 | { |
| 401 | struct tda10021_state* state = NULL; |
| 402 | |
| 403 | /* allocate memory for the internal state */ |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 404 | state = kmalloc(sizeof(struct tda10021_state), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | if (state == NULL) goto error; |
| 406 | |
| 407 | /* setup the state */ |
| 408 | state->config = config; |
| 409 | state->i2c = i2c; |
| 410 | memcpy(&state->ops, &tda10021_ops, sizeof(struct dvb_frontend_ops)); |
| 411 | state->pwm = pwm; |
| 412 | state->reg0 = tda10021_inittab[0]; |
| 413 | |
| 414 | /* check if the demod is there */ |
| 415 | if ((tda10021_readreg(state, 0x1a) & 0xf0) != 0x70) goto error; |
| 416 | |
| 417 | /* create dvb_frontend */ |
| 418 | state->frontend.ops = &state->ops; |
| 419 | state->frontend.demodulator_priv = state; |
| 420 | return &state->frontend; |
| 421 | |
| 422 | error: |
| 423 | kfree(state); |
| 424 | return NULL; |
| 425 | } |
| 426 | |
| 427 | static struct dvb_frontend_ops tda10021_ops = { |
| 428 | |
| 429 | .info = { |
| 430 | .name = "Philips TDA10021 DVB-C", |
| 431 | .type = FE_QAM, |
| 432 | .frequency_stepsize = 62500, |
| 433 | .frequency_min = 51000000, |
| 434 | .frequency_max = 858000000, |
| 435 | .symbol_rate_min = (XIN/2)/64, /* SACLK/64 == (XIN/2)/64 */ |
| 436 | .symbol_rate_max = (XIN/2)/4, /* SACLK/4 */ |
Michael Krufky | 50c25ff | 2006-01-09 15:25:34 -0200 | [diff] [blame] | 437 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | .frequency_tolerance = ???, |
| 439 | .symbol_rate_tolerance = ???, /* ppm */ /* == 8% (spec p. 5) */ |
| 440 | #endif |
| 441 | .caps = 0x400 | //FE_CAN_QAM_4 |
| 442 | FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | |
| 443 | FE_CAN_QAM_128 | FE_CAN_QAM_256 | |
| 444 | FE_CAN_FEC_AUTO |
| 445 | }, |
| 446 | |
| 447 | .release = tda10021_release, |
| 448 | |
| 449 | .init = tda10021_init, |
| 450 | .sleep = tda10021_sleep, |
| 451 | |
| 452 | .set_frontend = tda10021_set_parameters, |
| 453 | .get_frontend = tda10021_get_frontend, |
| 454 | |
| 455 | .read_status = tda10021_read_status, |
| 456 | .read_ber = tda10021_read_ber, |
| 457 | .read_signal_strength = tda10021_read_signal_strength, |
| 458 | .read_snr = tda10021_read_snr, |
| 459 | .read_ucblocks = tda10021_read_ucblocks, |
| 460 | }; |
| 461 | |
| 462 | module_param(verbose, int, 0644); |
| 463 | MODULE_PARM_DESC(verbose, "print AFC offset after tuning for debugging the PWM setting"); |
| 464 | |
| 465 | MODULE_DESCRIPTION("Philips TDA10021 DVB-C demodulator driver"); |
| 466 | MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Markus Schulz"); |
| 467 | MODULE_LICENSE("GPL"); |
| 468 | |
| 469 | EXPORT_SYMBOL(tda10021_attach); |