/* * Support for LGDT3302 and LGDT3303 - VSB/QAM * * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ /* * NOTES ABOUT THIS DRIVER * * This Linux driver supports: * DViCO FusionHDTV 3 Gold-Q * DViCO FusionHDTV 3 Gold-T * DViCO FusionHDTV 5 Gold * DViCO FusionHDTV 5 Lite * DViCO FusionHDTV 5 USB Gold * Air2PC/AirStar 2 ATSC 3rd generation (HD5000) * pcHDTV HD5500 * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/string.h> #include <linux/slab.h> #include <asm/byteorder.h> #include "dvb_frontend.h" #include "dvb_math.h" #include "lgdt330x_priv.h" #include "lgdt330x.h" /* Use Equalizer Mean Squared Error instead of Phaser Tracker MSE */ /* #define USE_EQMSE */ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug,"Turn on/off lgdt330x frontend debugging (default:off)."); #define dprintk(args...) \ do { \ if (debug) printk(KERN_DEBUG "lgdt330x: " args); \ } while (0) struct lgdt330x_state { struct i2c_adapter* i2c; /* Configuration settings */ const struct lgdt330x_config* config; struct dvb_frontend frontend; /* Demodulator private data */ fe_modulation_t current_modulation; u32 snr; /* Result of last SNR calculation */ /* Tuner private data */ u32 current_frequency; }; static int i2c_write_demod_bytes (struct lgdt330x_state* state, u8 *buf, /* data bytes to send */ int len /* number of bytes to send */ ) { struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; int i; int err; for (i=0; i<len-1; i+=2){ if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __func__, msg.buf[0], msg.buf[1], err); if (err < 0) return err; else return -EREMOTEIO; } msg.buf += 2; } return 0; } /* * This routine writes the register (reg) to the demod bus * then reads the data returned for (len) bytes. */ static int i2c_read_demod_bytes(struct lgdt330x_state *state, enum I2C_REG reg, u8 *buf, int len) { u8 wr [] = { reg }; struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = wr, .len = 1 }, { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = len }, }; int ret; ret = i2c_transfer(state->i2c, msg, 2); if (ret != 2) { printk(KERN_WARNING "lgdt330x: %s: addr 0x%02x select 0x%02x error (ret == %i)\n", __func__, state->config->demod_address, reg, ret); if (ret >= 0) ret = -EIO; } else { ret = 0; } return ret; } /* Software reset */ static int lgdt3302_SwReset(struct lgdt330x_state* state) { u8 ret; u8 reset[] = { IRQ_MASK, 0x00 /* bit 6 is active low software reset * bits 5-0 are 1 to mask interrupts */ }; ret = i2c_write_demod_bytes(state, reset, sizeof(reset)); if (ret == 0) { /* force reset high (inactive) and unmask interrupts */ reset[1] = 0x7f; ret = i2c_write_demod_bytes(state, reset, sizeof(reset)); } return ret; } static int lgdt3303_SwReset(struct lgdt330x_state* state) { u8 ret; u8 reset[] = { 0x02, 0x00 /* bit 0 is active low software reset */ }; ret = i2c_write_demod_bytes(state, reset, sizeof(reset)); if (ret == 0) { /* force reset high (inactive) */ reset[1] = 0x01; ret = i2c_write_demod_bytes(state, reset, sizeof(reset)); } return ret; } static int lgdt330x_SwReset(struct lgdt330x_state* state) { switch (state->config->demod_chip) { case LGDT3302: return lgdt3302_SwReset(state); case LGDT3303: return lgdt3303_SwReset(state); default: return -ENODEV; } } static int lgdt330x_init(struct dvb_frontend* fe) { /* Hardware reset is done using gpio[0] of cx23880x chip. * I'd like to do it here, but don't know how to find chip address. * cx88-cards.c arranges for the reset bit to be inactive (high). * Maybe there needs to be a callable function in cx88-core or * the caller of this function needs to do it. */ /* * Array of byte pairs <address, value> * to initialize each different chip */ static u8 lgdt3302_init_data[] = { /* Use 50MHz parameter values from spec sheet since xtal is 50 */ /* Change the value of NCOCTFV[25:0] of carrier recovery center frequency register */ VSB_CARRIER_FREQ0, 0x00, VSB_CARRIER_FREQ1, 0x87, VSB_CARRIER_FREQ2, 0x8e, VSB_CARRIER_FREQ3, 0x01, /* Change the TPCLK pin polarity data is valid on falling clock */ DEMUX_CONTROL, 0xfb, /* Change the value of IFBW[11:0] of AGC IF/RF loop filter bandwidth register */ AGC_RF_BANDWIDTH0, 0x40, AGC_RF_BANDWIDTH1, 0x93, AGC_RF_BANDWIDTH2, 0x00, /* Change the value of bit 6, 'nINAGCBY' and 'NSSEL[1:0] of ACG function control register 2 */ AGC_FUNC_CTRL2, 0xc6, /* Change the value of bit 6 'RFFIX' of AGC function control register 3 */ AGC_FUNC_CTRL3, 0x40, /* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */ AGC_DELAY0, 0x07, AGC_DELAY2, 0xfe, /* Change the value of IAGCBW[15:8] of inner AGC loop filter bandwidth */ AGC_LOOP_BANDWIDTH0, 0x08, AGC_LOOP_BANDWIDTH1, 0x9a }; static u8 lgdt3303_init_data[] = { 0x4c, 0x14 }; static u8 flip_1_lgdt3303_init_data[] = { 0x4c, 0x14, 0x87, 0xf3 }; static u8 flip_2_lgdt3303_init_data[] = { 0x4c, 0x14, 0x87, 0xda }; struct lgdt330x_state* state = fe->demodulator_priv; char *chip_name; int err; switch (state->config->demod_chip) { case LGDT3302: chip_name = "LGDT3302"; err = i2c_write_demod_bytes(state, lgdt3302_init_data, sizeof(lgdt3302_init_data)); break; case LGDT3303: chip_name = "LGDT3303"; switch (state->config->clock_polarity_flip) { case 2: err = i2c_write_demod_bytes(state, flip_2_lgdt3303_init_data, sizeof(flip_2_lgdt3303_init_data)); break; case 1: err = i2c_write_demod_bytes(state, flip_1_lgdt3303_init_data, sizeof(flip_1_lgdt3303_init_data)); break; case 0: default: err = i2c_write_demod_bytes(state, lgdt3303_init_data, sizeof(lgdt3303_init_data)); } break; default: chip_name = "undefined"; printk (KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n"); err = -ENODEV; } dprintk("%s entered as %s\n", __func__, chip_name); if (err < 0) return err; return lgdt330x_SwReset(state); } static int lgdt330x_read_ber(struct dvb_frontend* fe, u32* ber) { *ber = 0; /* Not supplied by the demod chips */ return 0; } static int lgdt330x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) { struct lgdt330x_state* state = fe->demodulator_priv; int err; u8 buf[2]; *ucblocks = 0; switch (state->config->demod_chip) { case LGDT3302: err = i2c_read_demod_bytes(state, LGDT3302_PACKET_ERR_COUNTER1, buf, sizeof(buf)); break; case LGDT3303: err = i2c_read_demod_bytes(state, LGDT3303_PACKET_ERR_COUNTER1, buf, sizeof(buf)); break; default: printk(KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n"); err = -ENODEV; } if (err < 0) return err; *ucblocks = (buf[0] << 8) | buf[1]; return 0; } static int lgdt330x_set_parameters(struct dvb_frontend *fe) { struct dtv_frontend_properties *p = &fe->dtv_property_cache; /* * Array of byte pairs <address, value> * to initialize 8VSB for lgdt3303 chip 50 MHz IF */ static u8 lgdt3303_8vsb_44_data[] = { 0x04, 0x00, 0x0d, 0x40, 0x0e, 0x87, 0x0f, 0x8e, 0x10, 0x01, 0x47, 0x8b }; /* * Array of byte pairs <address, value> * to initialize QAM for lgdt3303 chip */ static u8 lgdt3303_qam_data[] = { 0x04, 0x00, 0x0d, 0x00, 0x0e, 0x00, 0x0f, 0x00, 0x10, 0x00, 0x51, 0x63, 0x47, 0x66, 0x48, 0x66, 0x4d, 0x1a, 0x49, 0x08, 0x4a, 0x9b }; struct lgdt330x_state* state = fe->demodulator_priv; static u8 top_ctrl_cfg[] = { TOP_CONTROL, 0x03 }; int err = 0; /* Change only if we are actually changing the modulation */ if (state->current_modulation != p->modulation) { switch (p->modulation) { case VSB_8: dprintk("%s: VSB_8 MODE\n", __func__); /* Select VSB mode */ top_ctrl_cfg[1] = 0x03; /* Select ANT connector if supported by card */ if (state->config->pll_rf_set) state->config->pll_rf_set(fe, 1); if (state->config->demod_chip == LGDT3303) { err = i2c_write_demod_bytes(state, lgdt3303_8vsb_44_data, sizeof(lgdt3303_8vsb_44_data)); } break; case QAM_64: dprintk("%s: QAM_64 MODE\n", __func__); /* Select QAM_64 mode */ top_ctrl_cfg[1] = 0x00; /* Select CABLE connector if supported by card */ if (state->config->pll_rf_set) state->config->pll_rf_set(fe, 0); if (state->config->demod_chip == LGDT3303) { err = i2c_write_demod_bytes(state, lgdt3303_qam_data, sizeof(lgdt3303_qam_data)); } break; case QAM_256: dprintk("%s: QAM_256 MODE\n", __func__); /* Select QAM_256 mode */ top_ctrl_cfg[1] = 0x01; /* Select CABLE connector if supported by card */ if (state->config->pll_rf_set) state->config->pll_rf_set(fe, 0); if (state->config->demod_chip == LGDT3303) { err = i2c_write_demod_bytes(state, lgdt3303_qam_data, sizeof(lgdt3303_qam_data)); } break; default: printk(KERN_WARNING "lgdt330x: %s: Modulation type(%d) UNSUPPORTED\n", __func__, p->modulation); return -1; } if (err < 0) printk(KERN_WARNING "lgdt330x: %s: error blasting " "bytes to lgdt3303 for modulation type(%d)\n", __func__, p->modulation); /* * select serial or parallel MPEG harware interface * Serial: 0x04 for LGDT3302 or 0x40 for LGDT3303 * Parallel: 0x00 */ top_ctrl_cfg[1] |= state->config->serial_mpeg; /* Select the requested mode */ i2c_write_demod_bytes(state, top_ctrl_cfg, sizeof(top_ctrl_cfg)); if (state->config->set_ts_params) state->config->set_ts_params(fe, 0); state->current_modulation = p->modulation; } /* Tune to the specified frequency */ if (fe->ops.tuner_ops.set_params) { fe->ops.tuner_ops.set_params(fe); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } /* Keep track of the new frequency */ /* FIXME this is the wrong way to do this... */ /* The tuner is shared with the video4linux analog API */ state->current_frequency = p->frequency; lgdt330x_SwReset(state); return 0; } static int lgdt330x_get_frontend(struct dvb_frontend *fe) { struct dtv_frontend_properties *p = &fe->dtv_property_cache; struct lgdt330x_state *state = fe->demodulator_priv; p->frequency = state->current_frequency; return 0; } static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status) { struct lgdt330x_state* state = fe->demodulator_priv; u8 buf[3]; *status = 0; /* Reset status result */ /* AGC status register */ i2c_read_demod_bytes(state, AGC_STATUS, buf, 1); dprintk("%s: AGC_STATUS = 0x%02x\n", __func__, buf[0]); if ((buf[0] & 0x0c) == 0x8){ /* Test signal does not exist flag */ /* as well as the AGC lock flag. */ *status |= FE_HAS_SIGNAL; } /* * You must set the Mask bits to 1 in the IRQ_MASK in order * to see that status bit in the IRQ_STATUS register. * This is done in SwReset(); */ /* signal status */ i2c_read_demod_bytes(state, TOP_CONTROL, buf, sizeof(buf)); dprintk("%s: TOP_CONTROL = 0x%02x, IRO_MASK = 0x%02x, IRQ_STATUS = 0x%02x\n", __func__, buf[0], buf[1], buf[2]); /* sync status */ if ((buf[2] & 0x03) == 0x01) { *status |= FE_HAS_SYNC; } /* FEC error status */ if ((buf[2] & 0x0c) == 0x08) { *status |= FE_HAS_LOCK; *status |= FE_HAS_VITERBI; } /* Carrier Recovery Lock Status Register */ i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1); dprintk("%s: CARRIER_LOCK = 0x%02x\n", __func__, buf[0]); switch (state->current_modulation) { case QAM_256: case QAM_64: /* Need to understand why there are 3 lock levels here */ if ((buf[0] & 0x07) == 0x07) *status |= FE_HAS_CARRIER; break; case VSB_8: if ((buf[0] & 0x80) == 0x80) *status |= FE_HAS_CARRIER; break; default: printk(KERN_WARNING "lgdt330x: %s: Modulation set to unsupported value\n", __func__); } return 0; } static int lgdt3303_read_status(struct dvb_frontend* fe, fe_status_t* status) { struct lgdt330x_state* state = fe->demodulator_priv; int err; u8 buf[3]; *status = 0; /* Reset status result */ /* lgdt3303 AGC status register */ err = i2c_read_demod_bytes(state, 0x58, buf, 1); if (err < 0) return err; dprintk("%s: AGC_STATUS = 0x%02x\n", __func__, buf[0]); if ((buf[0] & 0x21) == 0x01){ /* Test input signal does not exist flag */ /* as well as the AGC lock flag. */ *status |= FE_HAS_SIGNAL; } /* Carrier Recovery Lock Status Register */ i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1); dprintk("%s: CARRIER_LOCK = 0x%02x\n", __func__, buf[0]); switch (state->current_modulation) { case QAM_256: case QAM_64: /* Need to understand why there are 3 lock levels here */ if ((buf[0] & 0x07) == 0x07) *status |= FE_HAS_CARRIER; else break; i2c_read_demod_bytes(state, 0x8a, buf, 1); if ((buf[0] & 0x04) == 0x04) *status |= FE_HAS_SYNC; if ((buf[0] & 0x01) == 0x01) *status |= FE_HAS_LOCK; if ((buf[0] & 0x08) == 0x08) *status |= FE_HAS_VITERBI; break; case VSB_8: if ((buf[0] & 0x80) == 0x80) *status |= FE_HAS_CARRIER; else break; i2c_read_demod_bytes(state, 0x38, buf, 1); if ((buf[0] & 0x02) == 0x00) *status |= FE_HAS_SYNC; if ((buf[0] & 0x01) == 0x01) { *status |= FE_HAS_LOCK; *status |= FE_HAS_VITERBI; } break; default: printk(KERN_WARNING "lgdt330x: %s: Modulation set to unsupported value\n", __func__); } return 0; } /* Calculate SNR estimation (scaled by 2^24) 8-VSB SNR equations from LGDT3302 and LGDT3303 datasheets, QAM equations from LGDT3303 datasheet. VSB is the same between the '02 and '03, so maybe QAM is too? Perhaps someone with a newer datasheet that has QAM information could verify? For 8-VSB: (two ways, take your pick) LGDT3302: SNR_EQ = 10 * log10(25 * 24^2 / EQ_MSE) LGDT3303: SNR_EQ = 10 * log10(25 * 32^2 / EQ_MSE) LGDT3302 & LGDT3303: SNR_PT = 10 * log10(25 * 32^2 / PT_MSE) (we use this one) For 64-QAM: SNR = 10 * log10( 688128 / MSEQAM) For 256-QAM: SNR = 10 * log10( 696320 / MSEQAM) We re-write the snr equation as: SNR * 2^24 = 10*(c - intlog10(MSE)) Where for 256-QAM, c = log10(696320) * 2^24, and so on. */ static u32 calculate_snr(u32 mse, u32 c) { if (mse == 0) /* No signal */ return 0; mse = intlog10(mse); if (mse > c) { /* Negative SNR, which is possible, but realisticly the demod will lose lock before the signal gets this bad. The API only allows for unsigned values, so just return 0 */ return 0; } return 10*(c - mse); } static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr) { struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; u8 buf[5]; /* read data buffer */ u32 noise; /* noise value */ u32 c; /* per-modulation SNR calculation constant */ switch(state->current_modulation) { case VSB_8: i2c_read_demod_bytes(state, LGDT3302_EQPH_ERR0, buf, 5); #ifdef USE_EQMSE /* Use Equalizer Mean-Square Error Register */ /* SNR for ranges from -15.61 to +41.58 */ noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2]; c = 69765745; /* log10(25*24^2)*2^24 */ #else /* Use Phase Tracker Mean-Square Error Register */ /* SNR for ranges from -13.11 to +44.08 */ noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4]; c = 73957994; /* log10(25*32^2)*2^24 */ #endif break; case QAM_64: case QAM_256: i2c_read_demod_bytes(state, CARRIER_MSEQAM1, buf, 2); noise = ((buf[0] & 3) << 8) | buf[1]; c = state->current_modulation == QAM_64 ? 97939837 : 98026066; /* log10(688128)*2^24 and log10(696320)*2^24 */ break; default: printk(KERN_ERR "lgdt330x: %s: Modulation set to unsupported value\n", __func__); return -EREMOTEIO; /* return -EDRIVER_IS_GIBBERED; */ } state->snr = calculate_snr(noise, c); *snr = (state->snr) >> 16; /* Convert from 8.24 fixed-point to 8.8 */ dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise, state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16); return 0; } static int lgdt3303_read_snr(struct dvb_frontend* fe, u16* snr) { struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; u8 buf[5]; /* read data buffer */ u32 noise; /* noise value */ u32 c; /* per-modulation SNR calculation constant */ switch(state->current_modulation) { case VSB_8: i2c_read_demod_bytes(state, LGDT3303_EQPH_ERR0, buf, 5); #ifdef USE_EQMSE /* Use Equalizer Mean-Square Error Register */ /* SNR for ranges from -16.12 to +44.08 */ noise = ((buf[0] & 0x78) << 13) | (buf[1] << 8) | buf[2]; c = 73957994; /* log10(25*32^2)*2^24 */ #else /* Use Phase Tracker Mean-Square Error Register */ /* SNR for ranges from -13.11 to +44.08 */ noise = ((buf[0] & 7) << 16) | (buf[3] << 8) | buf[4]; c = 73957994; /* log10(25*32^2)*2^24 */ #endif break; case QAM_64: case QAM_256: i2c_read_demod_bytes(state, CARRIER_MSEQAM1, buf, 2); noise = (buf[0] << 8) | buf[1]; c = state->current_modulation == QAM_64 ? 97939837 : 98026066; /* log10(688128)*2^24 and log10(696320)*2^24 */ break; default: printk(KERN_ERR "lgdt330x: %s: Modulation set to unsupported value\n", __func__); return -EREMOTEIO; /* return -EDRIVER_IS_GIBBERED; */ } state->snr = calculate_snr(noise, c); *snr = (state->snr) >> 16; /* Convert from 8.24 fixed-point to 8.8 */ dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise, state->snr >> 24, (((state->snr >> 8) & 0xffff) * 100) >> 16); return 0; } static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength) { /* Calculate Strength from SNR up to 35dB */ /* Even though the SNR can go higher than 35dB, there is some comfort */ /* factor in having a range of strong signals that can show at 100% */ struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; u16 snr; int ret; ret = fe->ops.read_snr(fe, &snr); if (ret != 0) return ret; /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */ /* scale the range 0 - 35*2^24 into 0 - 65535 */ if (state->snr >= 8960 * 0x10000) *strength = 0xffff; else *strength = state->snr / 8960; return 0; } static int lgdt330x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings) { /* I have no idea about this - it may not be needed */ fe_tune_settings->min_delay_ms = 500; fe_tune_settings->step_size = 0; fe_tune_settings->max_drift = 0; return 0; } static void lgdt330x_release(struct dvb_frontend* fe) { struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; kfree(state); } static struct dvb_frontend_ops lgdt3302_ops; static struct dvb_frontend_ops lgdt3303_ops; struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, struct i2c_adapter* i2c) { struct lgdt330x_state* state = NULL; u8 buf[1]; /* Allocate memory for the internal state */ state = kzalloc(sizeof(struct lgdt330x_state), GFP_KERNEL); if (state == NULL) goto error; /* Setup the state */ state->config = config; state->i2c = i2c; /* Create dvb_frontend */ switch (config->demod_chip) { case LGDT3302: memcpy(&state->frontend.ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops)); break; case LGDT3303: memcpy(&state->frontend.ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops)); break; default: goto error; } state->frontend.demodulator_priv = state; /* Verify communication with demod chip */ if (i2c_read_demod_bytes(state, 2, buf, 1)) goto error; state->current_frequency = -1; state->current_modulation = -1; return &state->frontend; error: kfree(state); dprintk("%s: ERROR\n",__func__); return NULL; } static struct dvb_frontend_ops lgdt3302_ops = { .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, .info = { .name= "LG Electronics LGDT3302 VSB/QAM Frontend", .frequency_min= 54000000, .frequency_max= 858000000, .frequency_stepsize= 62500, .symbol_rate_min = 5056941, /* QAM 64 */ .symbol_rate_max = 10762000, /* VSB 8 */ .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB }, .init = lgdt330x_init, .set_frontend = lgdt330x_set_parameters, .get_frontend = lgdt330x_get_frontend, .get_tune_settings = lgdt330x_get_tune_settings, .read_status = lgdt3302_read_status, .read_ber = lgdt330x_read_ber, .read_signal_strength = lgdt330x_read_signal_strength, .read_snr = lgdt3302_read_snr, .read_ucblocks = lgdt330x_read_ucblocks, .release = lgdt330x_release, }; static struct dvb_frontend_ops lgdt3303_ops = { .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, .info = { .name= "LG Electronics LGDT3303 VSB/QAM Frontend", .frequency_min= 54000000, .frequency_max= 858000000, .frequency_stepsize= 62500, .symbol_rate_min = 5056941, /* QAM 64 */ .symbol_rate_max = 10762000, /* VSB 8 */ .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB }, .init = lgdt330x_init, .set_frontend = lgdt330x_set_parameters, .get_frontend = lgdt330x_get_frontend, .get_tune_settings = lgdt330x_get_tune_settings, .read_status = lgdt3303_read_status, .read_ber = lgdt330x_read_ber, .read_signal_strength = lgdt330x_read_signal_strength, .read_snr = lgdt3303_read_snr, .read_ucblocks = lgdt330x_read_ucblocks, .release = lgdt330x_release, }; MODULE_DESCRIPTION("LGDT330X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver"); MODULE_AUTHOR("Wilson Michaels"); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(lgdt330x_attach); /* * Local variables: * c-basic-offset: 8 * End: */