diff options
Diffstat (limited to 'drivers/media/dvb/frontends')
| -rw-r--r-- | drivers/media/dvb/frontends/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/dvb-pll.c | 27 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/dvb-pll.h | 1 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/lgdt3302.c | 599 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/lgdt330x.c | 831 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/lgdt330x.h (renamed from drivers/media/dvb/frontends/lgdt3302.h) | 32 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/lgdt330x_priv.h (renamed from drivers/media/dvb/frontends/lgdt3302_priv.h) | 16 |
8 files changed, 887 insertions, 625 deletions
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index d847c62bd83..e83256d0fd1 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -187,8 +187,8 @@ config DVB_BCM3510 An ATSC 8VSB/16VSB and QAM64/256 tuner module. Say Y when you want to support this frontend. -config DVB_LGDT3302 - tristate "LGDT3302 based (DViCO FusionHDTV3 Gold)" +config DVB_LGDT330X + tristate "LGDT3302 or LGDT3303 based (DViCO FusionHDTV Gold)" depends on DVB_CORE help An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index de5e240cba7..ad8658ffd60 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -30,4 +30,4 @@ obj-$(CONFIG_DVB_OR51211) += or51211.o obj-$(CONFIG_DVB_OR51132) += or51132.o obj-$(CONFIG_DVB_BCM3510) += bcm3510.o obj-$(CONFIG_DVB_S5H1420) += s5h1420.o -obj-$(CONFIG_DVB_LGDT3302) += lgdt3302.o +obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c index 5afeaa9b43b..536c35d969b 100644 --- a/drivers/media/dvb/frontends/dvb-pll.c +++ b/drivers/media/dvb/frontends/dvb-pll.c @@ -82,13 +82,14 @@ struct dvb_pll_desc dvb_pll_lg_z201 = { .name = "LG z201", .min = 174000000, .max = 862000000, - .count = 5, + .count = 6, .entries = { { 0, 36166667, 166666, 0xbc, 0x03 }, - { 443250000, 36166667, 166666, 0xbc, 0x01 }, - { 542000000, 36166667, 166666, 0xbc, 0x02 }, - { 830000000, 36166667, 166666, 0xf4, 0x02 }, - { 999999999, 36166667, 166666, 0xfc, 0x02 }, + { 157500000, 36166667, 166666, 0xbc, 0x01 }, + { 443250000, 36166667, 166666, 0xbc, 0x02 }, + { 542000000, 36166667, 166666, 0xbc, 0x04 }, + { 830000000, 36166667, 166666, 0xf4, 0x04 }, + { 999999999, 36166667, 166666, 0xfc, 0x04 }, }, }; EXPORT_SYMBOL(dvb_pll_lg_z201); @@ -224,6 +225,22 @@ struct dvb_pll_desc dvb_pll_tua6034 = { }; EXPORT_SYMBOL(dvb_pll_tua6034); +/* Infineon TUA6034 + * used in LG Innotek TDVS-H062F + */ +struct dvb_pll_desc dvb_pll_tdvs_tua6034 = { + .name = "LG/Infineon TUA6034", + .min = 54000000, + .max = 863000000, + .count = 3, + .entries = { + { 160000000, 44000000, 62500, 0xce, 0x01 }, + { 455000000, 44000000, 62500, 0xce, 0x02 }, + { 999999999, 44000000, 62500, 0xce, 0x04 }, + }, +}; +EXPORT_SYMBOL(dvb_pll_tdvs_tua6034); + /* Philips FMD1216ME * used in Medion Hybrid PCMCIA card and USB Box */ diff --git a/drivers/media/dvb/frontends/dvb-pll.h b/drivers/media/dvb/frontends/dvb-pll.h index cb794759d89..205b2d1a885 100644 --- a/drivers/media/dvb/frontends/dvb-pll.h +++ b/drivers/media/dvb/frontends/dvb-pll.h @@ -31,6 +31,7 @@ extern struct dvb_pll_desc dvb_pll_unknown_1; extern struct dvb_pll_desc dvb_pll_tua6010xs; extern struct dvb_pll_desc dvb_pll_env57h1xd5; extern struct dvb_pll_desc dvb_pll_tua6034; +extern struct dvb_pll_desc dvb_pll_tdvs_tua6034; extern struct dvb_pll_desc dvb_pll_tda665x; extern struct dvb_pll_desc dvb_pll_fmd1216me; extern struct dvb_pll_desc dvb_pll_tded4; diff --git a/drivers/media/dvb/frontends/lgdt3302.c b/drivers/media/dvb/frontends/lgdt3302.c deleted file mode 100644 index c85a2a99df4..00000000000 --- a/drivers/media/dvb/frontends/lgdt3302.c +++ /dev/null @@ -1,599 +0,0 @@ -/* - * Support for LGDT3302 (DViCO FustionHDTV 3 Gold) - VSB/QAM - * - * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> - * - * Based on code from Kirk Lapray <kirk_lapray@bigfoot.com> - * Copyright (C) 2005 - * - * 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 driver supports DViCO FusionHDTV 3 Gold under Linux. - * - * TODO: - * BER and signal strength always return 0. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <asm/byteorder.h> - -#include "dvb_frontend.h" -#include "dvb-pll.h" -#include "lgdt3302_priv.h" -#include "lgdt3302.h" - -static int debug = 0; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug,"Turn on/off lgdt3302 frontend debugging (default:off)."); -#define dprintk(args...) \ -do { \ -if (debug) printk(KERN_DEBUG "lgdt3302: " args); \ -} while (0) - -struct lgdt3302_state -{ - struct i2c_adapter* i2c; - struct dvb_frontend_ops ops; - - /* Configuration settings */ - const struct lgdt3302_config* config; - - struct dvb_frontend frontend; - - /* Demodulator private data */ - fe_modulation_t current_modulation; - - /* Tuner private data */ - u32 current_frequency; -}; - -static int i2c_writebytes (struct lgdt3302_state* state, - u8 addr, /* demod_address or pll_address */ - u8 *buf, /* data bytes to send */ - int len /* number of bytes to send */ ) -{ - if (addr == state->config->pll_address) { - struct i2c_msg msg = - { .addr = addr, .flags = 0, .buf = buf, .len = len }; - int err; - - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err); - if (err < 0) - return err; - else - return -EREMOTEIO; - } - } else { - u8 tmp[] = { buf[0], buf[1] }; - struct i2c_msg msg = - { .addr = addr, .flags = 0, .buf = tmp, .len = 2 }; - int err; - int i; - - for (i=1; i<len; i++) { - tmp[1] = buf[i]; - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err); - if (err < 0) - return err; - else - return -EREMOTEIO; - } - tmp[0]++; - } - } - return 0; -} -static int i2c_readbytes (struct lgdt3302_state* state, - u8 addr, /* demod_address or pll_address */ - u8 *buf, /* holds data bytes read */ - int len /* number of bytes to read */ ) -{ - struct i2c_msg msg = - { .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len }; - int err; - - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "lgdt3302: %s error (addr %02x, err == %i)\n", __FUNCTION__, addr, err); - return -EREMOTEIO; - } - return 0; -} - -/* - * This routine writes the register (reg) to the demod bus - * then reads the data returned for (len) bytes. - */ - -static u8 i2c_selectreadbytes (struct lgdt3302_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 "lgdt3302: %s: addr 0x%02x select 0x%02x error (ret == %i)\n", __FUNCTION__, state->config->demod_address, reg, ret); - } else { - ret = 0; - } - return ret; -} - -/* Software reset */ -int lgdt3302_SwReset(struct lgdt3302_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_writebytes(state, - state->config->demod_address, - reset, sizeof(reset)); - if (ret == 0) { - /* spec says reset takes 100 ns why wait */ - /* mdelay(100); */ /* keep low for 100mS */ - reset[1] = 0x7f; /* force reset high (inactive) - * and unmask interrupts */ - ret = i2c_writebytes(state, - state->config->demod_address, - reset, sizeof(reset)); - } - /* Spec does not indicate a need for this either */ - /*mdelay(5); */ /* wait 5 msec before doing more */ - return ret; -} - -static int lgdt3302_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. */ - - dprintk("%s entered\n", __FUNCTION__); - return lgdt3302_SwReset((struct lgdt3302_state*) fe->demodulator_priv); -} - -static int lgdt3302_read_ber(struct dvb_frontend* fe, u32* ber) -{ - *ber = 0; /* Dummy out for now */ - return 0; -} - -static int lgdt3302_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; - u8 buf[2]; - - i2c_selectreadbytes(state, PACKET_ERR_COUNTER1, buf, sizeof(buf)); - - *ucblocks = (buf[0] << 8) | buf[1]; - return 0; -} - -static int lgdt3302_set_parameters(struct dvb_frontend* fe, - struct dvb_frontend_parameters *param) -{ - u8 buf[4]; - struct lgdt3302_state* state = - (struct lgdt3302_state*) fe->demodulator_priv; - - /* Use 50MHz parameter values from spec sheet since xtal is 50 */ - static u8 top_ctrl_cfg[] = { TOP_CONTROL, 0x03 }; - static u8 vsb_freq_cfg[] = { VSB_CARRIER_FREQ0, 0x00, 0x87, 0x8e, 0x01 }; - static u8 demux_ctrl_cfg[] = { DEMUX_CONTROL, 0xfb }; - static u8 agc_rf_cfg[] = { AGC_RF_BANDWIDTH0, 0x40, 0x93, 0x00 }; - static u8 agc_ctrl_cfg[] = { AGC_FUNC_CTRL2, 0xc6, 0x40 }; - static u8 agc_delay_cfg[] = { AGC_DELAY0, 0x07, 0x00, 0xfe }; - static u8 agc_loop_cfg[] = { AGC_LOOP_BANDWIDTH0, 0x08, 0x9a }; - - /* Change only if we are actually changing the modulation */ - if (state->current_modulation != param->u.vsb.modulation) { - switch(param->u.vsb.modulation) { - case VSB_8: - dprintk("%s: VSB_8 MODE\n", __FUNCTION__); - - /* Select VSB mode and serial MPEG interface */ - top_ctrl_cfg[1] = 0x07; - break; - - case QAM_64: - dprintk("%s: QAM_64 MODE\n", __FUNCTION__); - - /* Select QAM_64 mode and serial MPEG interface */ - top_ctrl_cfg[1] = 0x04; - break; - - case QAM_256: - dprintk("%s: QAM_256 MODE\n", __FUNCTION__); - - /* Select QAM_256 mode and serial MPEG interface */ - top_ctrl_cfg[1] = 0x05; - break; - default: - printk(KERN_WARNING "lgdt3302: %s: Modulation type(%d) UNSUPPORTED\n", __FUNCTION__, param->u.vsb.modulation); - return -1; - } - /* Initializations common to all modes */ - - /* Select the requested mode */ - i2c_writebytes(state, state->config->demod_address, - top_ctrl_cfg, sizeof(top_ctrl_cfg)); - - /* Change the value of IFBW[11:0] - of AGC IF/RF loop filter bandwidth register */ - i2c_writebytes(state, state->config->demod_address, - agc_rf_cfg, sizeof(agc_rf_cfg)); - - /* Change the value of bit 6, 'nINAGCBY' and - 'NSSEL[1:0] of ACG function control register 2 */ - /* Change the value of bit 6 'RFFIX' - of AGC function control register 3 */ - i2c_writebytes(state, state->config->demod_address, - agc_ctrl_cfg, sizeof(agc_ctrl_cfg)); - - /* Change the TPCLK pin polarity - data is valid on falling clock */ - i2c_writebytes(state, state->config->demod_address, - demux_ctrl_cfg, sizeof(demux_ctrl_cfg)); - - /* Change the value of NCOCTFV[25:0] of carrier - recovery center frequency register */ - i2c_writebytes(state, state->config->demod_address, - vsb_freq_cfg, sizeof(vsb_freq_cfg)); - - /* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */ - i2c_writebytes(state, state->config->demod_address, - agc_delay_cfg, sizeof(agc_delay_cfg)); - - /* Change the value of IAGCBW[15:8] - of inner AGC loop filter bandwith */ - i2c_writebytes(state, state->config->demod_address, - agc_loop_cfg, sizeof(agc_loop_cfg)); - - state->config->set_ts_params(fe, 0); - state->current_modulation = param->u.vsb.modulation; - } - - /* Change only if we are actually changing the channel */ - if (state->current_frequency != param->frequency) { - dvb_pll_configure(state->config->pll_desc, buf, - param->frequency, 0); - dprintk("%s: tuner bytes: 0x%02x 0x%02x " - "0x%02x 0x%02x\n", __FUNCTION__, buf[0],buf[1],buf[2],buf[3]); - i2c_writebytes(state, state->config->pll_address ,buf, 4); - - /* Check the status of the tuner pll */ - i2c_readbytes(state, state->config->pll_address, buf, 1); - dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]); - - /* Update current frequency */ - state->current_frequency = param->frequency; - } - lgdt3302_SwReset(state); - return 0; -} - -static int lgdt3302_get_frontend(struct dvb_frontend* fe, - struct dvb_frontend_parameters* param) -{ - struct lgdt3302_state *state = fe->demodulator_priv; - param->frequency = state->current_frequency; - return 0; -} - -static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; - u8 buf[3]; - - *status = 0; /* Reset status result */ - - /* Check the status of the tuner pll */ - i2c_readbytes(state, state->config->pll_address, buf, 1); - dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]); - if ((buf[0] & 0xc0) != 0x40) - return 0; /* Tuner PLL not locked or not powered on */ - - /* - * 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(); - */ - - /* AGC status register */ - i2c_selectreadbytes(state, AGC_STATUS, buf, 1); - dprintk("%s: AGC_STATUS = 0x%02x\n", __FUNCTION__, buf[0]); - if ((buf[0] & 0x0c) == 0x8){ - /* Test signal does not exist flag */ - /* as well as the AGC lock flag. */ - *status |= FE_HAS_SIGNAL; - } else { - /* Without a signal all other status bits are meaningless */ - return 0; - } - - /* signal status */ - i2c_selectreadbytes(state, TOP_CONTROL, buf, sizeof(buf)); - dprintk("%s: TOP_CONTROL = 0x%02x, IRO_MASK = 0x%02x, IRQ_STATUS = 0x%02x\n", __FUNCTION__, buf[0], buf[1], buf[2]); - -#if 0 - /* Alternative method to check for a signal */ - /* using the SNR good/bad interrupts. */ - if ((buf[2] & 0x30) == 0x10) - *status |= FE_HAS_SIGNAL; -#endif - - /* 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_selectreadbytes(state, CARRIER_LOCK, buf, 1); - dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]); - switch (state->current_modulation) { - case QAM_256: - case QAM_64: - /* Need to undestand 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 lgdt3302: %s: Modulation set to unsupported value\n", __FUNCTION__); - } - - return 0; -} - -static int lgdt3302_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - /* not directly available. */ - return 0; -} - -static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr) -{ -#ifdef SNR_IN_DB - /* - * Spec sheet shows formula for SNR_EQ = 10 log10(25 * 24**2 / noise) - * and SNR_PH = 10 log10(25 * 32**2 / noise) for equalizer and phase tracker - * respectively. The following tables are built on these formulas. - * The usual definition is SNR = 20 log10(signal/noise) - * If the specification is wrong the value retuned is 1/2 the actual SNR in db. - * - * This table is a an ordered list of noise values computed by the - * formula from the spec sheet such that the index into the table - * starting at 43 or 45 is the SNR value in db. There are duplicate noise - * value entries at the beginning because the SNR varies more than - * 1 db for a change of 1 digit in noise at very small values of noise. - * - * Examples from SNR_EQ table: - * noise SNR - * 0 43 - * 1 42 - * 2 39 - * 3 37 - * 4 36 - * 5 35 - * 6 34 - * 7 33 - * 8 33 - * 9 32 - * 10 32 - * 11 31 - * 12 31 - * 13 30 - */ - - static const u32 SNR_EQ[] = - { 1, 2, 2, 2, 3, 3, 4, 4, 5, 7, - 9, 11, 13, 17, 21, 26, 33, 41, 52, 65, - 81, 102, 129, 162, 204, 257, 323, 406, 511, 644, - 810, 1020, 1284, 1616, 2035, 2561, 3224, 4059, 5110, 6433, - 8098, 10195, 12835, 16158, 20341, 25608, 32238, 40585, 51094, 64323, - 80978, 101945, 128341, 161571, 203406, 256073, 0x40000 - }; - - static const u32 SNR_PH[] = - { 1, 2, 2, 2, 3, 3, 4, 5, 6, 8, - 10, 12, 15, 19, 23, 29, 37, 46, 58, 73, - 91, 115, 144, 182, 229, 288, 362, 456, 574, 722, - 909, 1144, 1440, 1813, 2282, 2873, 3617, 4553, 5732, 7216, - 9084, 11436, 14396, 18124, 22817, 28724, 36161, 45524, 57312, 72151, - 90833, 114351, 143960, 181235, 228161, 0x040000 - }; - - static u8 buf[5];/* read data buffer */ - static u32 noise; /* noise value */ - static u32 snr_db; /* index into SNR_EQ[] */ - struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; - - /* read both equalizer and pase tracker noise data */ - i2c_selectreadbytes(state, EQPH_ERR0, buf, sizeof(buf)); - - if (state->current_modulation == VSB_8) { - /* Equalizer Mean-Square Error Register for VSB */ - noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2]; - - /* - * Look up noise value in table. - * A better search algorithm could be used... - * watch out there are duplicate entries. - */ - for (snr_db = 0; snr_db < sizeof(SNR_EQ); snr_db++) { - if (noise < SNR_EQ[snr_db]) { - *snr = 43 - snr_db; - break; - } - } - } else { - /* Phase Tracker Mean-Square Error Register for QAM */ - noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4]; - - /* Look up noise value in table. */ - for (snr_db = 0; snr_db < sizeof(SNR_PH); snr_db++) { - if (noise < SNR_PH[snr_db]) { - *snr = 45 - snr_db; - break; - } - } - } -#else - /* Return the raw noise value */ - static u8 buf[5];/* read data buffer */ - static u32 noise; /* noise value */ - struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; - - /* read both equalizer and pase tracker noise data */ - i2c_selectreadbytes(state, EQPH_ERR0, buf, sizeof(buf)); - - if (state->current_modulation == VSB_8) { - /* Equalizer Mean-Square Error Register for VSB */ - noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2]; - } else { - /* Phase Tracker Mean-Square Error Register for QAM */ - noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4]; - } - - /* Small values for noise mean signal is better so invert noise */ - /* Noise is 19 bit value so discard 3 LSB*/ - *snr = ~noise>>3; -#endif - - dprintk("%s: noise = 0x%05x, snr = %idb\n",__FUNCTION__, noise, *snr); - - return 0; -} - -static int lgdt3302_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 lgdt3302_release(struct dvb_frontend* fe) -{ - struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; - kfree(state); -} - -static struct dvb_frontend_ops lgdt3302_ops; - -struct dvb_frontend* lgdt3302_attach(const struct lgdt3302_config* config, - struct i2c_adapter* i2c) -{ - struct lgdt3302_state* state = NULL; - u8 buf[1]; - - /* Allocate memory for the internal state */ - state = (struct lgdt3302_state*) kmalloc(sizeof(struct lgdt3302_state), GFP_KERNEL); - if (state == NULL) - goto error; - memset(state,0,sizeof(*state)); - - /* Setup the state */ - state->config = config; - state->i2c = i2c; - memcpy(&state->ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops)); - /* Verify communication with demod chip */ - if (i2c_selectreadbytes(state, 2, buf, 1)) - goto error; - - state->current_frequency = -1; - state->current_modulation = -1; - - /* Create dvb_frontend */ - state->frontend.ops = &state->ops; - state->frontend.demodulator_priv = state; - return &state->frontend; - -error: - if (state) - kfree(state); - dprintk("%s: ERROR\n",__FUNCTION__); - return NULL; -} - -static struct dvb_frontend_ops lgdt3302_ops = { - .info = { - .name= "LG Electronics LGDT3302 VSB/QAM Frontend", - .type = FE_ATSC, - .frequency_min= 54000000, - .frequency_max= 858000000, - .frequency_stepsize= 62500, - /* Symbol rate is for all VSB modes need to check QAM */ - .symbol_rate_min = 10762000, - .symbol_rate_max = 10762000, - .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB - }, - .init = lgdt3302_init, - .set_frontend = lgdt3302_set_parameters, - .get_frontend = lgdt3302_get_frontend, - .get_tune_settings = lgdt3302_get_tune_settings, - .read_status = lgdt3302_read_status, - .read_ber = lgdt3302_read_ber, - .read_signal_strength = lgdt3302_read_signal_strength, - .read_snr = lgdt3302_read_snr, - .read_ucblocks = lgdt3302_read_ucblocks, - .release = lgdt3302_release, -}; - -MODULE_DESCRIPTION("LGDT3302 [DViCO FusionHDTV 3 Gold] (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver"); -MODULE_AUTHOR("Wilson Michaels"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(lgdt3302_attach); - -/* - * Local variables: - * c-basic-offset: 8 - * compile-command: "make DVB=1" - * End: - */ diff --git a/drivers/media/dvb/frontends/lgdt330x.c b/drivers/media/dvb/frontends/lgdt330x.c new file mode 100644 index 00000000000..c48e7c11d70 --- /dev/null +++ b/drivers/media/dvb/frontends/lgdt330x.c @@ -0,0 +1,831 @@ +/* + * 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 + * + * TODO: + * signal strength always returns 0. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <asm/byteorder.h> + +#include "dvb_frontend.h" +#include "lgdt330x_priv.h" +#include "lgdt330x.h" + +static int debug = 0; +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; + struct dvb_frontend_ops ops; + + /* Configuration settings */ + const struct lgdt330x_config* config; + + struct dvb_frontend frontend; + + /* Demodulator private data */ + fe_modulation_t current_modulation; + + /* 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", __FUNCTION__, 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 u8 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", __FUNCTION__, state->config->demod_address, reg, ret); + } 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; + } +} + +#ifdef MUTE_TDA9887 +static int i2c_write_ntsc_demod (struct lgdt330x_state* state, u8 buf[2]) +{ + struct i2c_msg msg = + { .addr = 0x43, + .flags = 0, + .buf = buf, + .len = 2 }; + int err; + + if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { + printk(KERN_WARNING "lgdt330x: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, msg.buf[0], msg.buf[1], err); + if (err < 0) + return err; + else + return -EREMOTEIO; + } + return 0; +} + +static void fiddle_with_ntsc_if_demod(struct lgdt330x_state* state) +{ + // Experimental code + u8 buf0[] = {0x00, 0x20}; + u8 buf1[] = {0x01, 0x00}; + u8 buf2[] = {0x02, 0x00}; + + i2c_write_ntsc_demod(state, buf0); + i2c_write_ntsc_demod(state, buf1); + i2c_write_ntsc_demod(state, buf2); +} +#endif + +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 bandwith */ + AGC_LOOP_BANDWIDTH0, 0x08, + AGC_LOOP_BANDWIDTH1, 0x9a + }; + + static u8 lgdt3303_init_data[] = { + 0x4c, 0x14 + }; + + 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"; + err = i2c_write_demod_bytes(state, lgdt3303_init_data, + sizeof(lgdt3303_init_data)); +#ifdef MUTE_TDA9887 + fiddle_with_ntsc_if_demod(state); +#endif + break; + default: + chip_name = "undefined"; + printk (KERN_WARNING "Only LGDT3302 and LGDT3303 are supported chips.\n"); + err = -ENODEV; + } + dprintk("%s entered as %s\n", __FUNCTION__, 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]; + + 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; + } + + *ucblocks = (buf[0] << 8) | buf[1]; + return 0; +} + +static int lgdt330x_set_parameters(struct dvb_frontend* fe, + struct dvb_frontend_parameters *param) +{ + /* + * 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; + /* Change only if we are actually changing the modulation */ + if (state->current_modulation != param->u.vsb.modulation) { + switch(param->u.vsb.modulation) { + case VSB_8: + dprintk("%s: VSB_8 MODE\n", __FUNCTION__); + + /* 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", __FUNCTION__); + + /* 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", __FUNCTION__); + + /* 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", __FUNCTION__, param->u.vsb.modulation); + return -1; + } + /* + * 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)); + state->config->set_ts_params(fe, 0); + state->current_modulation = param->u.vsb.modulation; + } + + /* Change only if we are actually changing the channel */ + if (state->current_frequency != param->frequency) { + /* Tune to the new frequency */ + state->config->pll_set(fe, param); + /* Keep track of the new frequency */ + state->current_frequency = param->frequency; + } + lgdt330x_SwReset(state); + return 0; +} + +static int lgdt330x_get_frontend(struct dvb_frontend* fe, + struct dvb_frontend_parameters* param) +{ + struct lgdt330x_state *state = fe->demodulator_priv; + param->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", __FUNCTION__, buf[0]); + if ((buf[0] & 0x0c) == 0x8){ + /* Test signal does not exist flag */ + /* as well as the AGC lock flag. */ + *status |= FE_HAS_SIGNAL; + } else { + /* Without a signal all other status bits are meaningless */ + return 0; + } + + /* + * 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", __FUNCTION__, 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", __FUNCTION__, buf[0]); + switch (state->current_modulation) { + case QAM_256: + case QAM_64: + /* Need to undestand 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", __FUNCTION__); + } + + 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", __FUNCTION__, 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; + } else { + /* Without a signal all other status bits are meaningless */ + return 0; + } + + /* Carrier Recovery Lock Status Register */ + i2c_read_demod_bytes(state, CARRIER_LOCK, buf, 1); + dprintk("%s: CARRIER_LOCK = 0x%02x\n", __FUNCTION__, buf[0]); + switch (state->current_modulation) { + case QAM_256: + case QAM_64: + /* Need to undestand 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", __FUNCTION__); + } + return 0; +} + +static int lgdt330x_read_signal_strength(struct dvb_frontend* fe, u16* strength) +{ + /* not directly available. */ + *strength = 0; + return 0; +} + +static int lgdt3302_read_snr(struct dvb_frontend* fe, u16* snr) +{ +#ifdef SNR_IN_DB + /* + * Spec sheet shows formula for SNR_EQ = 10 log10(25 * 24**2 / noise) + * and SNR_PH = 10 log10(25 * 32**2 / noise) for equalizer and phase tracker + * respectively. The following tables are built on these formulas. + * The usual definition is SNR = 20 log10(signal/noise) + * If the specification is wrong the value retuned is 1/2 the actual SNR in db. + * + * This table is a an ordered list of noise values computed by the + * formula from the spec sheet such that the index into the table + * starting at 43 or 45 is the SNR value in db. There are duplicate noise + * value entries at the beginning because the SNR varies more than + * 1 db for a change of 1 digit in noise at very small values of noise. + * + * Examples from SNR_EQ table: + * noise SNR + * 0 43 + * 1 42 + * 2 39 + * 3 37 + * 4 36 + * 5 35 + * 6 34 + * 7 33 + * 8 33 + * 9 32 + * 10 32 + * 11 31 + * 12 31 + * 13 30 + */ + + static const u32 SNR_EQ[] = + { 1, 2, 2, 2, 3, 3, 4, 4, 5, 7, + 9, 11, 13, 17, 21, 26, 33, 41, 52, 65, + 81, 102, 129, 162, 204, 257, 323, 406, 511, 644, + 810, 1020, 1284, 1616, 2035, 2561, 3224, 4059, 5110, 6433, + 8098, 10195, 12835, 16158, 20341, 25608, 32238, 40585, 51094, 64323, + 80978, 101945, 128341, 161571, 203406, 256073, 0x40000 + }; + + static const u32 SNR_PH[] = + { 1, 2, 2, 2, 3, 3, 4, 5, 6, 8, + 10, 12, 15, 19, 23, 29, 37, 46, 58, 73, + 91, 115, 144, 182, 229, 288, 362, 456, 574, 722, + 909, 1144, 1440, 1813, 2282, 2873, 3617, 4553, 5732, 7216, + 9084, 11436, 14396, 18124, 22817, 28724, 36161, 45524, 57312, 72151, + 90833, 114351, 143960, 181235, 228161, 0x080000 + }; + + static u8 buf[5];/* read data buffer */ + static u32 noise; /* noise value */ + static u32 snr_db; /* index into SNR_EQ[] */ + struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; + + /* read both equalizer and phase tracker noise data */ + i2c_read_demod_bytes(state, EQPH_ERR0, buf, sizeof(buf)); + + if (state->current_modulation == VSB_8) { + /* Equalizer Mean-Square Error Register for VSB */ + noise = ((buf[0] & 7) << 16) | (buf[1] << 8) | buf[2]; + + /* + * Look up noise value in table. + * A better search algorithm could be used... + * watch out there are duplicate entries. + */ + for (snr_db = 0; snr_db < sizeof(SNR_EQ); snr_db++) { + if (noise < SNR_EQ[snr_db]) { + *snr = 43 - snr_db; + break; + } + } + } else { + /* Phase Tracker Mean-Square Error Register for QAM */ + noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4]; + + /* Look up noise value in table. */ + for (snr_db = 0; snr_db < sizeof(SNR_PH); snr_db++) { + if (noise < SNR_PH[snr_db]) { + *snr = 45 - snr_db; + break; + } + } + } +#else + /* Return the raw noise value */ + static u8 buf[5];/* read data buffer */ + static u32 noise; /* noise value */ + struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; + + /* read both equalizer and pase tracker noise data */ + i2c_read_demod_bytes(state, EQPH_ERR0, buf, sizeof(buf)); + + if (state->current_modulation == VSB_8) { + /* Phase Tracker Mean-Square Error Register for VSB */ + noise = ((buf[0] & 7<<3) << 13) | (buf[3] << 8) | buf[4]; + } else { + + /* Carrier Recovery Mean-Square Error for QAM */ + i2c_read_demod_bytes(state, 0x1a, buf, 2); + noise = ((buf[0] & 3) << 8) | buf[1]; + } + + /* Small values for noise mean signal is better so invert noise */ + *snr = ~noise; +#endif + + dprintk("%s: noise = 0x%05x, snr = %idb\n",__FUNCTION__, noise, *snr); + + return 0; +} + +static int lgdt3303_read_snr(struct dvb_frontend* fe, u16* snr) +{ + /* Return the raw noise value */ + static u8 buf[5];/* read data buffer */ + static u32 noise; /* noise value */ + struct lgdt330x_state* state = (struct lgdt330x_state*) fe->demodulator_priv; + + if (state->current_modulation == VSB_8) { + + /* Phase Tracker Mean-Square Error Register for VSB */ + noise = ((buf[0] & 7) << 16) | (buf[3] << 8) | buf[4]; + } else { + + /* Carrier Recovery Mean-Square Error for QAM */ + i2c_read_demod_bytes(state, 0x1a, buf, 2); + noise = (buf[0] << 8) | buf[1]; + } + + /* Small values for noise mean signal is better so invert noise */ + *snr = ~noise; + + dprintk("%s: noise = 0x%05x, snr = %idb\n",__FUNCTION__, noise, *snr); + + 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 = (struct lgdt330x_state*) kmalloc(sizeof(struct lgdt330x_state), GFP_KERNEL); + if (state == NULL) + goto error; + memset(state,0,sizeof(*state)); + + /* Setup the state */ + state->config = config; + state->i2c = i2c; + switch (config->demod_chip) { + case LGDT3302: + memcpy(&state->ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops)); + break; + case LGDT3303: + memcpy(&state->ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops)); + break; + default: + goto error; + } + + /* Verify communication with demod chip */ + if (i2c_read_demod_bytes(state, 2, buf, 1)) + goto error; + + state->current_frequency = -1; + state->current_modulation = -1; + + /* Create dvb_frontend */ + state->frontend.ops = &state->ops; + state->frontend.demodulator_priv = state; + return &state->frontend; + +error: + if (state) + kfree(state); + dprintk("%s: ERROR\n",__FUNCTION__); + return NULL; +} + +static struct dvb_frontend_ops lgdt3302_ops = { + .info = { + .name= "LG Electronics LGDT3302/LGDT3303 VSB/QAM Frontend", + .type = FE_ATSC, + .frequency_min= 54000000, + .frequency_max= 858000000, + .frequency_stepsize= 62500, + /* Symbol rate is for all VSB modes need to check QAM */ + .symbol_rate_min = 10762000, + .symbol_rate_max = 10762000, + .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 = { + .info = { + .name= "LG Electronics LGDT3303 VSB/QAM Frontend", + .type = FE_ATSC, + .frequency_min= 54000000, + .frequency_max= 858000000, + .frequency_stepsize= 62500, + /* Symbol rate is for all VSB modes need to check QAM */ + .symbol_rate_min = 10762000, + .symbol_rate_max = 10762000, + .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: + */ diff --git a/drivers/media/dvb/frontends/lgdt3302.h b/drivers/media/dvb/frontends/lgdt330x.h index 81587a40032..e209ba1e47c 100644 --- a/drivers/media/dvb/frontends/lgdt3302.h +++ b/drivers/media/dvb/frontends/lgdt330x.h @@ -1,7 +1,5 @@ /* - * $Id: lgdt3302.h,v 1.2 2005/06/28 23:50:48 mkrufky Exp $ - * - * Support for LGDT3302 (DViCO FustionHDTV 3 Gold) - VSB/QAM + * Support for LGDT3302 and LGDT3303 - VSB/QAM * * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> * @@ -21,26 +19,40 @@ * */ -#ifndef LGDT3302_H -#define LGDT3302_H +#ifndef LGDT330X_H +#define LGDT330X_H #include <linux/dvb/frontend.h> -struct lgdt3302_config +typedef enum lg_chip_t { + UNDEFINED, + LGDT3302, + LGDT3303 +}lg_chip_type; + +struct lgdt330x_config { /* The demodulator's i2c address */ u8 demod_address; - u8 pll_address; - struct dvb_pll_desc *pll_desc; + + /* LG demodulator chip LGDT3302 or LGDT3303 */ + lg_chip_type demod_chip; + + /* MPEG hardware interface - 0:parallel 1:serial */ + int serial_mpeg; + + /* PLL interface */ + int (*pll_rf_set) (struct dvb_frontend* fe, int index); + int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params); /* Need to set device param for start_dma */ int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); }; -extern struct dvb_frontend* lgdt3302_attach(const struct lgdt3302_config* config, +extern struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, struct i2c_adapter* i2c); -#endif /* LGDT3302_H */ +#endif /* LGDT330X_H */ /* * Local variables: diff --git a/drivers/media/dvb/frontends/lgdt3302_priv.h b/drivers/media/dvb/frontends/lgdt330x_priv.h index 6193fa7a569..59b7c5b9012 100644 --- a/drivers/media/dvb/frontends/lgdt3302_priv.h +++ b/drivers/media/dvb/frontends/lgdt330x_priv.h @@ -1,7 +1,5 @@ /* - * $Id: lgdt3302_priv.h,v 1.2 2005/06/28 23:50:48 mkrufky Exp $ - * - * Support for LGDT3302 (DViCO FustionHDTV 3 Gold) - VSB/QAM + * Support for LGDT3302 and LGDT3303 - VSB/QAM * * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> * @@ -21,8 +19,8 @@ * */ -#ifndef _LGDT3302_PRIV_ -#define _LGDT3302_PRIV_ +#ifndef _LGDT330X_PRIV_ +#define _LGDT330X_PRIV_ /* i2c control register addresses */ enum I2C_REG { @@ -59,11 +57,13 @@ enum I2C_REG { PH_ERR1= 0x4a, PH_ERR2= 0x4b, DEMUX_CONTROL= 0x66, - PACKET_ERR_COUNTER1= 0x6a, - PACKET_ERR_COUNTER2= 0x6b, + LGDT3302_PACKET_ERR_COUNTER1= 0x6a, + LGDT3302_PACKET_ERR_COUNTER2= 0x6b, + LGDT3303_PACKET_ERR_COUNTER1= 0x8b, + LGDT3303_PACKET_ERR_COUNTER2= 0x8c, }; -#endif /* _LGDT3302_PRIV_ */ +#endif /* _LGDT330X_PRIV_ */ /* * Local variables: |