Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | VES1820 - Single Chip Cable Channel Receiver driver module |
| 3 | |
| 4 | Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> |
| 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 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 | */ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/delay.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/kernel.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/string.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <asm/div64.h> |
| 29 | |
| 30 | #include "dvb_frontend.h" |
| 31 | #include "ves1820.h" |
| 32 | |
| 33 | |
| 34 | |
| 35 | struct ves1820_state { |
| 36 | struct i2c_adapter* i2c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | /* configuration settings */ |
| 38 | const struct ves1820_config* config; |
| 39 | struct dvb_frontend frontend; |
| 40 | |
| 41 | /* private demodulator data */ |
| 42 | u8 reg0; |
| 43 | u8 pwm; |
| 44 | }; |
| 45 | |
| 46 | |
| 47 | static int verbose; |
| 48 | |
| 49 | static u8 ves1820_inittab[] = { |
Oliver Endriss | 4a3625b | 2007-10-31 01:34:25 -0300 | [diff] [blame] | 50 | 0x69, 0x6A, 0x93, 0x1A, 0x12, 0x46, 0x26, 0x1A, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | 0x43, 0x6A, 0xAA, 0xAA, 0x1E, 0x85, 0x43, 0x20, |
| 52 | 0xE0, 0x00, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 53 | 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, |
| 54 | 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 55 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 56 | 0x00, 0x00, 0x00, 0x00, 0x40 |
| 57 | }; |
| 58 | |
| 59 | static int ves1820_writereg(struct ves1820_state *state, u8 reg, u8 data) |
| 60 | { |
| 61 | u8 buf[] = { 0x00, reg, data }; |
| 62 | struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 3 }; |
| 63 | int ret; |
| 64 | |
| 65 | ret = i2c_transfer(state->i2c, &msg, 1); |
| 66 | |
| 67 | if (ret != 1) |
Joe Perches | 11645cc | 2007-11-19 22:48:15 -0300 | [diff] [blame] | 68 | printk("ves1820: %s(): writereg error (reg == 0x%02x, " |
Harvey Harrison | 271ddbf | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 69 | "val == 0x%02x, ret == %i)\n", __func__, reg, data, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | return (ret != 1) ? -EREMOTEIO : 0; |
| 72 | } |
| 73 | |
| 74 | static u8 ves1820_readreg(struct ves1820_state *state, u8 reg) |
| 75 | { |
| 76 | u8 b0[] = { 0x00, reg }; |
| 77 | u8 b1[] = { 0 }; |
| 78 | struct i2c_msg msg[] = { |
| 79 | {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 2}, |
| 80 | {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1} |
| 81 | }; |
| 82 | int ret; |
| 83 | |
| 84 | ret = i2c_transfer(state->i2c, msg, 2); |
| 85 | |
| 86 | if (ret != 2) |
Joe Perches | 11645cc | 2007-11-19 22:48:15 -0300 | [diff] [blame] | 87 | printk("ves1820: %s(): readreg error (reg == 0x%02x, " |
Harvey Harrison | 271ddbf | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 88 | "ret == %i)\n", __func__, reg, ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | |
| 90 | return b1[0]; |
| 91 | } |
| 92 | |
| 93 | static int ves1820_setup_reg0(struct ves1820_state *state, u8 reg0, fe_spectral_inversion_t inversion) |
| 94 | { |
| 95 | reg0 |= state->reg0 & 0x62; |
| 96 | |
| 97 | if (INVERSION_ON == inversion) { |
| 98 | if (!state->config->invert) reg0 |= 0x20; |
| 99 | else reg0 &= ~0x20; |
| 100 | } else if (INVERSION_OFF == inversion) { |
| 101 | if (!state->config->invert) reg0 &= ~0x20; |
| 102 | else reg0 |= 0x20; |
| 103 | } |
| 104 | |
| 105 | ves1820_writereg(state, 0x00, reg0 & 0xfe); |
| 106 | ves1820_writereg(state, 0x00, reg0 | 0x01); |
| 107 | |
| 108 | state->reg0 = reg0; |
| 109 | |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | static int ves1820_set_symbolrate(struct ves1820_state *state, u32 symbolrate) |
| 114 | { |
| 115 | s32 BDR; |
| 116 | s32 BDRI; |
| 117 | s16 SFIL = 0; |
| 118 | u16 NDEC = 0; |
| 119 | u32 ratio; |
| 120 | u32 fin; |
| 121 | u32 tmp; |
| 122 | u64 fptmp; |
| 123 | u64 fpxin; |
| 124 | |
| 125 | if (symbolrate > state->config->xin / 2) |
| 126 | symbolrate = state->config->xin / 2; |
| 127 | |
| 128 | if (symbolrate < 500000) |
| 129 | symbolrate = 500000; |
| 130 | |
| 131 | if (symbolrate < state->config->xin / 16) |
| 132 | NDEC = 1; |
| 133 | if (symbolrate < state->config->xin / 32) |
| 134 | NDEC = 2; |
| 135 | if (symbolrate < state->config->xin / 64) |
| 136 | NDEC = 3; |
| 137 | |
| 138 | /* yeuch! */ |
| 139 | fpxin = state->config->xin * 10; |
| 140 | fptmp = fpxin; do_div(fptmp, 123); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 141 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | SFIL = 1; |
| 143 | fptmp = fpxin; do_div(fptmp, 160); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 144 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | SFIL = 0; |
| 146 | fptmp = fpxin; do_div(fptmp, 246); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 147 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | SFIL = 1; |
| 149 | fptmp = fpxin; do_div(fptmp, 320); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 150 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | SFIL = 0; |
| 152 | fptmp = fpxin; do_div(fptmp, 492); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 153 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | SFIL = 1; |
| 155 | fptmp = fpxin; do_div(fptmp, 640); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 156 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | SFIL = 0; |
| 158 | fptmp = fpxin; do_div(fptmp, 984); |
Denis Vlasenko | 48063a7 | 2005-12-01 00:51:55 -0800 | [diff] [blame] | 159 | if (symbolrate < fptmp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | SFIL = 1; |
| 161 | |
| 162 | fin = state->config->xin >> 4; |
| 163 | symbolrate <<= NDEC; |
| 164 | ratio = (symbolrate << 4) / fin; |
| 165 | tmp = ((symbolrate << 4) % fin) << 8; |
| 166 | ratio = (ratio << 8) + tmp / fin; |
| 167 | tmp = (tmp % fin) << 8; |
| 168 | ratio = (ratio << 8) + (tmp + fin / 2) / fin; |
| 169 | |
| 170 | BDR = ratio; |
| 171 | BDRI = (((state->config->xin << 5) / symbolrate) + 1) / 2; |
| 172 | |
| 173 | if (BDRI > 0xFF) |
| 174 | BDRI = 0xFF; |
| 175 | |
| 176 | SFIL = (SFIL << 4) | ves1820_inittab[0x0E]; |
| 177 | |
| 178 | NDEC = (NDEC << 6) | ves1820_inittab[0x03]; |
| 179 | |
| 180 | ves1820_writereg(state, 0x03, NDEC); |
| 181 | ves1820_writereg(state, 0x0a, BDR & 0xff); |
| 182 | ves1820_writereg(state, 0x0b, (BDR >> 8) & 0xff); |
| 183 | ves1820_writereg(state, 0x0c, (BDR >> 16) & 0x3f); |
| 184 | |
| 185 | ves1820_writereg(state, 0x0d, BDRI); |
| 186 | ves1820_writereg(state, 0x0e, SFIL); |
| 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static int ves1820_init(struct dvb_frontend* fe) |
| 192 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 193 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
| 196 | ves1820_writereg(state, 0, 0); |
| 197 | |
Johannes Stezenbach | 6816a4c | 2005-09-09 13:02:34 -0700 | [diff] [blame] | 198 | for (i = 0; i < sizeof(ves1820_inittab); i++) |
| 199 | ves1820_writereg(state, i, ves1820_inittab[i]); |
| 200 | if (state->config->selagc) |
| 201 | ves1820_writereg(state, 2, ves1820_inittab[2] | 0x08); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
| 203 | ves1820_writereg(state, 0x34, state->pwm); |
| 204 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | return 0; |
| 206 | } |
| 207 | |
| 208 | static int ves1820_set_parameters(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) |
| 209 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 210 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | static const u8 reg0x00[] = { 0x00, 0x04, 0x08, 0x0c, 0x10 }; |
| 212 | static const u8 reg0x01[] = { 140, 140, 106, 100, 92 }; |
| 213 | static const u8 reg0x05[] = { 135, 100, 70, 54, 38 }; |
| 214 | static const u8 reg0x08[] = { 162, 116, 67, 52, 35 }; |
| 215 | static const u8 reg0x09[] = { 145, 150, 106, 126, 107 }; |
| 216 | int real_qam = p->u.qam.modulation - QAM_16; |
| 217 | |
| 218 | if (real_qam < 0 || real_qam > 4) |
| 219 | return -EINVAL; |
| 220 | |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 221 | if (fe->ops.tuner_ops.set_params) { |
| 222 | fe->ops.tuner_ops.set_params(fe, p); |
| 223 | if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); |
Andrew de Quincey | 58b119e | 2006-04-18 17:47:10 -0300 | [diff] [blame] | 224 | } |
| 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | ves1820_set_symbolrate(state, p->u.qam.symbol_rate); |
| 227 | ves1820_writereg(state, 0x34, state->pwm); |
| 228 | |
| 229 | ves1820_writereg(state, 0x01, reg0x01[real_qam]); |
| 230 | ves1820_writereg(state, 0x05, reg0x05[real_qam]); |
| 231 | ves1820_writereg(state, 0x08, reg0x08[real_qam]); |
| 232 | ves1820_writereg(state, 0x09, reg0x09[real_qam]); |
| 233 | |
| 234 | ves1820_setup_reg0(state, reg0x00[real_qam], p->inversion); |
Johannes Stezenbach | 6816a4c | 2005-09-09 13:02:34 -0700 | [diff] [blame] | 235 | ves1820_writereg(state, 2, ves1820_inittab[2] | (state->config->selagc ? 0x08 : 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | static int ves1820_read_status(struct dvb_frontend* fe, fe_status_t* status) |
| 240 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 241 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | int sync; |
| 243 | |
| 244 | *status = 0; |
| 245 | sync = ves1820_readreg(state, 0x11); |
| 246 | |
| 247 | if (sync & 1) |
| 248 | *status |= FE_HAS_SIGNAL; |
| 249 | |
| 250 | if (sync & 2) |
| 251 | *status |= FE_HAS_CARRIER; |
| 252 | |
| 253 | if (sync & 2) /* XXX FIXME! */ |
| 254 | *status |= FE_HAS_VITERBI; |
| 255 | |
| 256 | if (sync & 4) |
| 257 | *status |= FE_HAS_SYNC; |
| 258 | |
| 259 | if (sync & 8) |
| 260 | *status |= FE_HAS_LOCK; |
| 261 | |
| 262 | return 0; |
| 263 | } |
| 264 | |
| 265 | static int ves1820_read_ber(struct dvb_frontend* fe, u32* ber) |
| 266 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 267 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
| 269 | u32 _ber = ves1820_readreg(state, 0x14) | |
| 270 | (ves1820_readreg(state, 0x15) << 8) | |
| 271 | ((ves1820_readreg(state, 0x16) & 0x0f) << 16); |
| 272 | *ber = 10 * _ber; |
| 273 | |
| 274 | return 0; |
| 275 | } |
| 276 | |
| 277 | static int ves1820_read_signal_strength(struct dvb_frontend* fe, u16* strength) |
| 278 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 279 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | |
| 281 | u8 gain = ves1820_readreg(state, 0x17); |
| 282 | *strength = (gain << 8) | gain; |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | static int ves1820_read_snr(struct dvb_frontend* fe, u16* snr) |
| 288 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 289 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
| 291 | u8 quality = ~ves1820_readreg(state, 0x18); |
| 292 | *snr = (quality << 8) | quality; |
| 293 | |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | static int ves1820_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) |
| 298 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 299 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | |
| 301 | *ucblocks = ves1820_readreg(state, 0x13) & 0x7f; |
| 302 | if (*ucblocks == 0x7f) |
| 303 | *ucblocks = 0xffffffff; |
| 304 | |
| 305 | /* reset uncorrected block counter */ |
| 306 | ves1820_writereg(state, 0x10, ves1820_inittab[0x10] & 0xdf); |
| 307 | ves1820_writereg(state, 0x10, ves1820_inittab[0x10]); |
| 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |
| 312 | static int ves1820_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) |
| 313 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 314 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | int sync; |
| 316 | s8 afc = 0; |
| 317 | |
| 318 | sync = ves1820_readreg(state, 0x11); |
| 319 | afc = ves1820_readreg(state, 0x19); |
| 320 | if (verbose) { |
| 321 | /* AFC only valid when carrier has been recovered */ |
| 322 | printk(sync & 2 ? "ves1820: AFC (%d) %dHz\n" : |
| 323 | "ves1820: [AFC (%d) %dHz]\n", afc, -((s32) p->u.qam.symbol_rate * afc) >> 10); |
| 324 | } |
| 325 | |
| 326 | if (!state->config->invert) { |
| 327 | p->inversion = (state->reg0 & 0x20) ? INVERSION_ON : INVERSION_OFF; |
| 328 | } else { |
| 329 | p->inversion = (!(state->reg0 & 0x20)) ? INVERSION_ON : INVERSION_OFF; |
| 330 | } |
| 331 | |
| 332 | p->u.qam.modulation = ((state->reg0 >> 2) & 7) + QAM_16; |
| 333 | |
| 334 | p->u.qam.fec_inner = FEC_NONE; |
| 335 | |
| 336 | p->frequency = ((p->frequency + 31250) / 62500) * 62500; |
| 337 | if (sync & 2) |
| 338 | p->frequency -= ((s32) p->u.qam.symbol_rate * afc) >> 10; |
| 339 | |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | static int ves1820_sleep(struct dvb_frontend* fe) |
| 344 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 345 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
| 347 | ves1820_writereg(state, 0x1b, 0x02); /* pdown ADC */ |
| 348 | ves1820_writereg(state, 0x00, 0x80); /* standby */ |
| 349 | |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | static int ves1820_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) |
| 354 | { |
| 355 | |
| 356 | fesettings->min_delay_ms = 200; |
| 357 | fesettings->step_size = 0; |
| 358 | fesettings->max_drift = 0; |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | static void ves1820_release(struct dvb_frontend* fe) |
| 363 | { |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 364 | struct ves1820_state* state = fe->demodulator_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | kfree(state); |
| 366 | } |
| 367 | |
| 368 | static struct dvb_frontend_ops ves1820_ops; |
| 369 | |
| 370 | struct dvb_frontend* ves1820_attach(const struct ves1820_config* config, |
| 371 | struct i2c_adapter* i2c, |
| 372 | u8 pwm) |
| 373 | { |
| 374 | struct ves1820_state* state = NULL; |
| 375 | |
| 376 | /* allocate memory for the internal state */ |
Johannes Stezenbach | b874270 | 2005-05-16 21:54:31 -0700 | [diff] [blame] | 377 | state = kmalloc(sizeof(struct ves1820_state), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | if (state == NULL) |
| 379 | goto error; |
| 380 | |
| 381 | /* setup the state */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | state->reg0 = ves1820_inittab[0]; |
| 383 | state->config = config; |
| 384 | state->i2c = i2c; |
| 385 | state->pwm = pwm; |
| 386 | |
| 387 | /* check if the demod is there */ |
| 388 | if ((ves1820_readreg(state, 0x1a) & 0xf0) != 0x70) |
| 389 | goto error; |
| 390 | |
| 391 | if (verbose) |
| 392 | printk("ves1820: pwm=0x%02x\n", state->pwm); |
| 393 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | /* create dvb_frontend */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 395 | memcpy(&state->frontend.ops, &ves1820_ops, sizeof(struct dvb_frontend_ops)); |
| 396 | state->frontend.ops.info.symbol_rate_min = (state->config->xin / 2) / 64; /* SACLK/64 == (XIN/2)/64 */ |
| 397 | state->frontend.ops.info.symbol_rate_max = (state->config->xin / 2) / 4; /* SACLK/4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | state->frontend.demodulator_priv = state; |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | return &state->frontend; |
| 401 | |
| 402 | error: |
| 403 | kfree(state); |
| 404 | return NULL; |
| 405 | } |
| 406 | |
| 407 | static struct dvb_frontend_ops ves1820_ops = { |
| 408 | |
| 409 | .info = { |
| 410 | .name = "VLSI VES1820 DVB-C", |
| 411 | .type = FE_QAM, |
| 412 | .frequency_stepsize = 62500, |
Hartmut Birr | a18255b | 2007-08-09 00:01:51 -0300 | [diff] [blame] | 413 | .frequency_min = 47000000, |
| 414 | .frequency_max = 862000000, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | .caps = FE_CAN_QAM_16 | |
| 416 | FE_CAN_QAM_32 | |
| 417 | FE_CAN_QAM_64 | |
| 418 | FE_CAN_QAM_128 | |
| 419 | FE_CAN_QAM_256 | |
| 420 | FE_CAN_FEC_AUTO |
| 421 | }, |
| 422 | |
| 423 | .release = ves1820_release, |
| 424 | |
| 425 | .init = ves1820_init, |
| 426 | .sleep = ves1820_sleep, |
| 427 | |
| 428 | .set_frontend = ves1820_set_parameters, |
| 429 | .get_frontend = ves1820_get_frontend, |
| 430 | .get_tune_settings = ves1820_get_tune_settings, |
| 431 | |
| 432 | .read_status = ves1820_read_status, |
| 433 | .read_ber = ves1820_read_ber, |
| 434 | .read_signal_strength = ves1820_read_signal_strength, |
| 435 | .read_snr = ves1820_read_snr, |
| 436 | .read_ucblocks = ves1820_read_ucblocks, |
| 437 | }; |
| 438 | |
| 439 | module_param(verbose, int, 0644); |
| 440 | MODULE_PARM_DESC(verbose, "print AFC offset after tuning for debugging the PWM setting"); |
| 441 | |
| 442 | MODULE_DESCRIPTION("VLSI VES1820 DVB-C Demodulator driver"); |
| 443 | MODULE_AUTHOR("Ralph Metzler, Holger Waechtler"); |
| 444 | MODULE_LICENSE("GPL"); |
| 445 | |
| 446 | EXPORT_SYMBOL(ves1820_attach); |