Release 4.11 drivers/media/dvb-frontends/nxt6000.c

Directory: drivers/media/dvb-frontends
/*
        NxtWave Communications - NXT6000 demodulator driver

    Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
    Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>

    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.
*/


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>

#include "dvb_frontend.h"
#include "nxt6000_priv.h"
#include "nxt6000.h"




struct nxt6000_state {
	
struct i2c_adapter* i2c;
	/* configuration settings */
	
const struct nxt6000_config* config;
	
struct dvb_frontend frontend;
};


static int debug;

#define dprintk(fmt, arg...) do {                                    \
        if (debug)                                                      \
                printk(KERN_DEBUG pr_fmt("%s: " fmt),                   \
                       __func__, ##arg);                                \
} while (0)



static int nxt6000_writereg(struct nxt6000_state* state, u8 reg, u8 data)
{
	u8 buf[] = { reg, data };
	struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 2 };
	int ret;

	if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)
		dprintk("nxt6000: nxt6000_write error (reg: 0x%02X, data: 0x%02X, ret: %d)\n", reg, data, ret);

	return (ret != 1) ? -EIO : 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Alan Cox 82 79.61% 2 33.33%
Michael Hunold 20 19.42% 3 50.00%
Mauro Carvalho Chehab 1 0.97% 1 16.67%
Total 103 100.00% 6 100.00%



static u8 nxt6000_readreg(struct nxt6000_state* state, u8 reg)
{
	int ret;
	u8 b0[] = { reg };
	u8 b1[] = { 0 };
	struct i2c_msg msgs[] = {
		{.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1},
		{.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1}
	};

	ret = i2c_transfer(state->i2c, msgs, 2);

	if (ret != 2)
		dprintk("nxt6000: nxt6000_read error (reg: 0x%02X, ret: %d)\n", reg, ret);

	return b1[0];
}

Contributors
Person Tokens Prop Commits CommitProp
Alan Cox 93 73.81% 2 40.00%
Michael Hunold 33 26.19% 3 60.00%
Total 126 100.00% 5 100.00%



static void nxt6000_reset(struct nxt6000_state* state)
{
	u8 val;

	val = nxt6000_readreg(state, OFDM_COR_CTL);

	nxt6000_writereg(state, OFDM_COR_CTL, val & ~COREACT);
	nxt6000_writereg(state, OFDM_COR_CTL, val | COREACT);
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 35 76.09% 1 50.00%
Alan Cox 11 23.91% 1 50.00%
Total 46 100.00% 2 100.00%



static int nxt6000_set_bandwidth(struct nxt6000_state *state, u32 bandwidth)
{
	u16 nominal_rate;
	int result;

	switch (bandwidth) {
	case 6000000:
		nominal_rate = 0x55B7;
		break;

	case 7000000:
		nominal_rate = 0x6400;
		break;

	case 8000000:
		nominal_rate = 0x7249;
		break;

	default:
		return -EINVAL;
	}

	if ((result = nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, nominal_rate & 0xFF)) < 0)
		return result;

	return nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, (nominal_rate >> 8) & 0xFF);
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 89 95.70% 2 66.67%
Mauro Carvalho Chehab 4 4.30% 1 33.33%
Total 93 100.00% 3 100.00%



static int nxt6000_set_guard_interval(struct nxt6000_state *state,
				      enum fe_guard_interval guard_interval)
{
	switch (guard_interval) {

	case GUARD_INTERVAL_1_32:
		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x00 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));

	case GUARD_INTERVAL_1_16:
		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x01 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));

	case GUARD_INTERVAL_AUTO:
	case GUARD_INTERVAL_1_8:
		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x02 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));

	case GUARD_INTERVAL_1_4:
		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x03 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));

	default:
		return -EINVAL;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 98 75.97% 1 25.00%
Alan Cox 29 22.48% 2 50.00%
Mauro Carvalho Chehab 2 1.55% 1 25.00%
Total 129 100.00% 4 100.00%



static int nxt6000_set_inversion(struct nxt6000_state *state,
				 enum fe_spectral_inversion inversion)
{
	switch (inversion) {

	case INVERSION_OFF:
		return nxt6000_writereg(state, OFDM_ITB_CTL, 0x00);

	case INVERSION_ON:
		return nxt6000_writereg(state, OFDM_ITB_CTL, ITBINV);

	default:
		return -EINVAL;

	}
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 31 59.62% 1 25.00%
Alan Cox 19 36.54% 2 50.00%
Mauro Carvalho Chehab 2 3.85% 1 25.00%
Total 52 100.00% 4 100.00%


static int

nxt6000_set_transmission_mode(struct nxt6000_state *state,
			      enum fe_transmit_mode transmission_mode)
{
	int result;

	switch (transmission_mode) {

	case TRANSMISSION_MODE_2K:
		if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x00 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
			return result;

		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x00 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));

	case TRANSMISSION_MODE_8K:
	case TRANSMISSION_MODE_AUTO:
		if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x02 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
			return result;

		return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x01 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));

	default:
		return -EINVAL;

	}
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 114 74.03% 1 25.00%
Alan Cox 38 24.68% 2 50.00%
Mauro Carvalho Chehab 2 1.30% 1 25.00%
Total 154 100.00% 4 100.00%



static void nxt6000_setup(struct dvb_frontend* fe)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	nxt6000_writereg(state, RS_COR_SYNC_PARAM, SYNC_PARAM);
	nxt6000_writereg(state, BER_CTRL, /*(1 << 2) | */ (0x01 << 1) | 0x01);
	nxt6000_writereg(state, VIT_BERTIME_2, 0x00);  // BER Timer = 0x000200 * 256 = 131072 bits
	nxt6000_writereg(state, VIT_BERTIME_1, 0x02);  //
	nxt6000_writereg(state, VIT_BERTIME_0, 0x00);  //
	nxt6000_writereg(state, VIT_COR_INTEN, 0x98); // Enable BER interrupts
	nxt6000_writereg(state, VIT_COR_CTL, 0x82);   // Enable BER measurement
	nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC | 0x02 );
	nxt6000_writereg(state, OFDM_COR_CTL, (0x01 << 5) | (nxt6000_readreg(state, OFDM_COR_CTL) & 0x0F));
	nxt6000_writereg(state, OFDM_COR_MODEGUARD, FORCEMODE8K | 0x02);
	nxt6000_writereg(state, OFDM_AGC_CTL, AGCLAST | INITIAL_AGC_BW);
	nxt6000_writereg(state, OFDM_ITB_FREQ_1, 0x06);
	nxt6000_writereg(state, OFDM_ITB_FREQ_2, 0x31);
	nxt6000_writereg(state, OFDM_CAS_CTL, (0x01 << 7) | (0x02 << 3) | 0x04);
	nxt6000_writereg(state, CAS_FREQ, 0xBB);	/* CHECKME */
	nxt6000_writereg(state, OFDM_SYR_CTL, 1 << 2);
	nxt6000_writereg(state, OFDM_PPM_CTL_1, PPM256);
	nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, 0x49);
	nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, 0x72);
	nxt6000_writereg(state, ANALOG_CONTROL_0, 1 << 5);
	nxt6000_writereg(state, EN_DMD_RACQ, (1 << 7) | (3 << 4) | 2);
	nxt6000_writereg(state, DIAG_CONFIG, TB_SET);

	if (state->config->clock_inversion)
		nxt6000_writereg(state, SUB_DIAG_MODE_SEL, CLKINVERSION);
	else
		nxt6000_writereg(state, SUB_DIAG_MODE_SEL, 0);

	nxt6000_writereg(state, TS_FORMAT, 0);
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 148 46.84% 2 33.33%
Alan Cox 116 36.71% 3 50.00%
Johannes Stezenbach 52 16.46% 1 16.67%
Total 316 100.00% 6 100.00%



static void nxt6000_dump_status(struct nxt6000_state *state)
{
	u8 val;

#if 0
	pr_info("RS_COR_STAT: 0x%02X\n",
                nxt6000_readreg(fe, RS_COR_STAT));
        pr_info("VIT_SYNC_STATUS: 0x%02X\n",
                nxt6000_readreg(fe, VIT_SYNC_STATUS));
        pr_info("OFDM_COR_STAT: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_COR_STAT));
        pr_info("OFDM_SYR_STAT: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_SYR_STAT));
        pr_info("OFDM_TPS_RCVD_1: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RCVD_1));
        pr_info("OFDM_TPS_RCVD_2: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RCVD_2));
        pr_info("OFDM_TPS_RCVD_3: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RCVD_3));
        pr_info("OFDM_TPS_RCVD_4: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RCVD_4));
        pr_info("OFDM_TPS_RESERVED_1: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RESERVED_1));
        pr_info("OFDM_TPS_RESERVED_2: 0x%02X\n",
                nxt6000_readreg(fe, OFDM_TPS_RESERVED_2));
#endif
	pr_info("NXT6000 status:");

	val = nxt6000_readreg(state, RS_COR_STAT);

	pr_cont(" DATA DESCR LOCK: %d,", val & 0x01);
	pr_cont(" DATA SYNC LOCK: %d,", (val >> 1) & 0x01);

	val = nxt6000_readreg(state, VIT_SYNC_STATUS);

	pr_cont(" VITERBI LOCK: %d,", (val >> 7) & 0x01);

	switch ((val >> 4) & 0x07) {

	case 0x00:
		pr_cont(" VITERBI CODERATE: 1/2,");
		break;

	case 0x01:
		pr_cont(" VITERBI CODERATE: 2/3,");
		break;

	case 0x02:
		pr_cont(" VITERBI CODERATE: 3/4,");
		break;

	case 0x03:
		pr_cont(" VITERBI CODERATE: 5/6,");
		break;

	case 0x04:
		pr_cont(" VITERBI CODERATE: 7/8,");
		break;

	default:
		pr_cont(" VITERBI CODERATE: Reserved,");

	}

	val = nxt6000_readreg(state, OFDM_COR_STAT);

	pr_cont(" CHCTrack: %d,", (val >> 7) & 0x01);
	pr_cont(" TPSLock: %d,", (val >> 6) & 0x01);
	pr_cont(" SYRLock: %d,", (val >> 5) & 0x01);
	pr_cont(" AGCLock: %d,", (val >> 4) & 0x01);

	switch (val & 0x0F) {

	case 0x00:
		pr_cont(" CoreState: IDLE,");
		break;

	case 0x02:
		pr_cont(" CoreState: WAIT_AGC,");
		break;

	case 0x03:
		pr_cont(" CoreState: WAIT_SYR,");
		break;

	case 0x04:
		pr_cont(" CoreState: WAIT_PPM,");
		break;

	case 0x01:
		pr_cont(" CoreState: WAIT_TRL,");
		break;

	case 0x05:
		pr_cont(" CoreState: WAIT_TPS,");
		break;

	case 0x06:
		pr_cont(" CoreState: MONITOR_TPS,");
		break;

	default:
		pr_cont(" CoreState: Reserved,");

	}

	val = nxt6000_readreg(state, OFDM_SYR_STAT);

	pr_cont(" SYRLock: %d,", (val >> 4) & 0x01);
	pr_cont(" SYRMode: %s,", (val >> 2) & 0x01 ? "8K" : "2K");

	switch ((val >> 4) & 0x03) {

	case 0x00:
		pr_cont(" SYRGuard: 1/32,");
		break;

	case 0x01:
		pr_cont(" SYRGuard: 1/16,");
		break;

	case 0x02:
		pr_cont(" SYRGuard: 1/8,");
		break;

	case 0x03:
		pr_cont(" SYRGuard: 1/4,");
		break;
	}

	val = nxt6000_readreg(state, OFDM_TPS_RCVD_3);

	switch ((val >> 4) & 0x07) {

	case 0x00:
		pr_cont(" TPSLP: 1/2,");
		break;

	case 0x01:
		pr_cont(" TPSLP: 2/3,");
		break;

	case 0x02:
		pr_cont(" TPSLP: 3/4,");
		break;

	case 0x03:
		pr_cont(" TPSLP: 5/6,");
		break;

	case 0x04:
		pr_cont(" TPSLP: 7/8,");
		break;

	default:
		pr_cont(" TPSLP: Reserved,");

	}

	switch (val & 0x07) {

	case 0x00:
		pr_cont(" TPSHP: 1/2,");
		break;

	case 0x01:
		pr_cont(" TPSHP: 2/3,");
		break;

	case 0x02:
		pr_cont(" TPSHP: 3/4,");
		break;

	case 0x03:
		pr_cont(" TPSHP: 5/6,");
		break;

	case 0x04:
		pr_cont(" TPSHP: 7/8,");
		break;

	default:
		pr_cont(" TPSHP: Reserved,");

	}

	val = nxt6000_readreg(state, OFDM_TPS_RCVD_4);

	pr_cont(" TPSMode: %s,", val & 0x01 ? "8K" : "2K");

	switch ((val >> 4) & 0x03) {

	case 0x00:
		pr_cont(" TPSGuard: 1/32,");
		break;

	case 0x01:
		pr_cont(" TPSGuard: 1/16,");
		break;

	case 0x02:
		pr_cont(" TPSGuard: 1/8,");
		break;

	case 0x03:
		pr_cont(" TPSGuard: 1/4,");
		break;

	}

	/* Strange magic required to gain access to RF_AGC_STATUS */
	nxt6000_readreg(state, RF_AGC_VAL_1);
	val = nxt6000_readreg(state, RF_AGC_STATUS);
	val = nxt6000_readreg(state, RF_AGC_STATUS);

	pr_cont(" RF AGC LOCK: %d,", (val >> 4) & 0x01);
	pr_cont("\n");
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 301 49.26% 3 42.86%
Alan Cox 254 41.57% 2 28.57%
Mauro Carvalho Chehab 53 8.67% 1 14.29%
Andrew Morton 3 0.49% 1 14.29%
Total 611 100.00% 7 100.00%



static int nxt6000_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
	u8 core_status;
	struct nxt6000_state* state = fe->demodulator_priv;

	*status = 0;

	core_status = nxt6000_readreg(state, OFDM_COR_STAT);

	if (core_status & AGCLOCKED)
		*status |= FE_HAS_SIGNAL;

	if (nxt6000_readreg(state, OFDM_SYR_STAT) & GI14_SYR_LOCK)
		*status |= FE_HAS_CARRIER;

	if (nxt6000_readreg(state, VIT_SYNC_STATUS) & VITINSYNC)
		*status |= FE_HAS_VITERBI;

	if (nxt6000_readreg(state, RS_COR_STAT) & RSCORESTATUS)
		*status |= FE_HAS_SYNC;

	if ((core_status & TPSLOCKED) && (*status == (FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)))
		*status |= FE_HAS_LOCK;

	if (debug)
		nxt6000_dump_status(state);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 103 73.05% 4 50.00%
Alan Cox 33 23.40% 2 25.00%
Andrew Morton 3 2.13% 1 12.50%
Mauro Carvalho Chehab 2 1.42% 1 12.50%
Total 141 100.00% 8 100.00%



static int nxt6000_init(struct dvb_frontend* fe)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	nxt6000_reset(state);
	nxt6000_setup(fe);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 33 100.00% 2 100.00%
Total 33 100.00% 2 100.00%



static int nxt6000_set_frontend(struct dvb_frontend *fe)
{
	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
	struct nxt6000_state* state = fe->demodulator_priv;
	int result;

	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);
	}

	result = nxt6000_set_bandwidth(state, p->bandwidth_hz);
	if (result < 0)
		return result;

	result = nxt6000_set_guard_interval(state, p->guard_interval);
	if (result < 0)
		return result;

	result = nxt6000_set_transmission_mode(state, p->transmission_mode);
	if (result < 0)
		return result;

	result = nxt6000_set_inversion(state, p->inversion);
	if (result < 0)
		return result;

	msleep(500);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 86 52.76% 2 22.22%
Mauro Carvalho Chehab 31 19.02% 1 11.11%
Andrew de Quincey 29 17.79% 1 11.11%
Alan Cox 6 3.68% 2 22.22%
Svante Olofsson 5 3.07% 1 11.11%
Patrick Boettcher 4 2.45% 1 11.11%
Andrew Morton 2 1.23% 1 11.11%
Total 163 100.00% 9 100.00%



static void nxt6000_release(struct dvb_frontend* fe)
{
	struct nxt6000_state* state = fe->demodulator_priv;
	kfree(state);
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 16 64.00% 3 60.00%
Alan Cox 6 24.00% 1 20.00%
Andrew Morton 3 12.00% 1 20.00%
Total 25 100.00% 5 100.00%



static int nxt6000_read_snr(struct dvb_frontend* fe, u16* snr)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	*snr = nxt6000_readreg( state, OFDM_CHC_SNR) / 8;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Johannes Stezenbach 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%



static int nxt6000_read_ber(struct dvb_frontend* fe, u32* ber)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18 );

	*ber = (nxt6000_readreg( state, VIT_BER_1 ) << 8 ) |
		nxt6000_readreg( state, VIT_BER_0 );

	nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18); // Clear BER Done interrupts

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Johannes Stezenbach 67 100.00% 1 100.00%
Total 67 100.00% 1 100.00%



static int nxt6000_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	*signal_strength = (short) (511 -
		(nxt6000_readreg(state, AGC_GAIN_1) +
		((nxt6000_readreg(state, AGC_GAIN_2) & 0x03) << 8)));

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Johannes Stezenbach 61 100.00% 1 100.00%
Total 61 100.00% 1 100.00%



static int nxt6000_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
{
	tune->min_delay_ms = 500;
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Svante Olofsson 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



static int nxt6000_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
{
	struct nxt6000_state* state = fe->demodulator_priv;

	if (enable) {
		return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x01);
	} else {
		return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x00);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
Andrew de Quincey 52 100.00% 1 100.00%
Total 52 100.00% 1 100.00%


static const struct dvb_frontend_ops nxt6000_ops;



struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
				    struct i2c_adapter* i2c)
{
	struct nxt6000_state* state = NULL;

	/* allocate memory for the internal state */
	state = kzalloc(sizeof(struct nxt6000_state), GFP_KERNEL);
	if (state == NULL) goto error;

	/* setup the state */
	state->config = config;
	state->i2c = i2c;

	/* check if the demod is there */
	if (nxt6000_readreg(state, OFDM_MSC_REV) != NXT6000ASICDEVICE) goto error;

	/* create dvb_frontend */
	memcpy(&state->frontend.ops, &nxt6000_ops, sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;

error:
	kfree(state);
	return NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 100 83.33% 2 40.00%
Patrick Boettcher 12 10.00% 1 20.00%
Alan Cox 7 5.83% 1 20.00%
Matthias Schwarzott 1 0.83% 1 20.00%
Total 120 100.00% 5 100.00%


static const struct dvb_frontend_ops nxt6000_ops = {
	.delsys = { SYS_DVBT },
	.info = {
		.name = "NxtWave NXT6000 DVB-T",
		.frequency_min = 0,
		.frequency_max = 863250000,
		.frequency_stepsize = 62500,
		/*.frequency_tolerance = *//* FIXME: 12% of SR */
		.symbol_rate_min = 0,	/* FIXME */
		.symbol_rate_max = 9360000,	/* FIXME */
		.symbol_rate_tolerance = 4000,
		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
			FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
			FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
			FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
			FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
			FE_CAN_HIERARCHY_AUTO,
        },

	.release = nxt6000_release,

	.init = nxt6000_init,
	.i2c_gate_ctrl = nxt6000_i2c_gate_ctrl,

	.get_tune_settings = nxt6000_fe_get_tune_settings,

	.set_frontend = nxt6000_set_frontend,

	.read_status = nxt6000_read_status,
	.read_ber = nxt6000_read_ber,
	.read_signal_strength = nxt6000_read_signal_strength,
	.read_snr = nxt6000_read_snr,
};

module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");

MODULE_DESCRIPTION("NxtWave NXT6000 DVB-T demodulator driver");
MODULE_AUTHOR("Florian Schirmer");
MODULE_LICENSE("GPL");


EXPORT_SYMBOL(nxt6000_attach);
Overall Contributors
Person Tokens Prop Commits CommitProp
Michael Hunold 1366 52.50% 6 28.57%
Alan Cox 731 28.09% 3 14.29%
Johannes Stezenbach 235 9.03% 2 9.52%
Mauro Carvalho Chehab 119 4.57% 4 19.05%
Andrew de Quincey 86 3.31% 1 4.76%
Svante Olofsson 35 1.35% 1 4.76%
Patrick Boettcher 16 0.61% 1 4.76%
Andrew Morton 11 0.42% 1 4.76%
Max Kellermann 2 0.08% 1 4.76%
Matthias Schwarzott 1 0.04% 1 4.76%
Total 2602 100.00% 21 100.00%
Directory: drivers/media/dvb-frontends

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Alan Cox	82	79.61%	2	33.33%
Michael Hunold	20	19.42%	3	50.00%
Mauro Carvalho Chehab	1	0.97%	1	16.67%
Total	103	100.00%	6	100.00%
cregit-Linux how code gets into the kernel

Release 4.11 drivers/media/dvb-frontends/nxt6000.c

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