V4L/DVB (3318e): DVB: remove the at76c651/tda80xx frontends (2d77645a) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/media/dvb/frontends/Kconfig

+0 −12

Original line number	Diff line number	Diff line
		@@ -28,12 +28,6 @@ config DVB_TDA8083
		help
		A DVB-S tuner module. Say Y when you want to support this frontend.

		config DVB_TDA80XX
		tristate "Philips TDA8044 or TDA8083 based"
		depends on DVB_CORE
		help
		A DVB-S tuner module. Say Y when you want to support this frontend.

		config DVB_MT312
		tristate "Zarlink MT312 based"
		depends on DVB_CORE
		@@ -139,12 +133,6 @@ config DVB_DIB3000MC
		comment "DVB-C (cable) frontends"
		depends on DVB_CORE

		config DVB_ATMEL_AT76C651
		tristate "Atmel AT76C651 based"
		depends on DVB_CORE
		help
		A DVB-C tuner module. Say Y when you want to support this frontend.

		config DVB_VES1820
		tristate "VLSI VES1820 based"
		depends on DVB_CORE

drivers/media/dvb/frontends/Makefile

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Original line number	Diff line number	Diff line
		@@ -8,7 +8,6 @@ obj-$(CONFIG_DVB_CORE) += dvb-pll.o
		obj-$(CONFIG_DVB_STV0299) += stv0299.o
		obj-$(CONFIG_DVB_SP8870) += sp8870.o
		obj-$(CONFIG_DVB_CX22700) += cx22700.o
		obj-$(CONFIG_DVB_ATMEL_AT76C651) += at76c651.o
		obj-$(CONFIG_DVB_CX24110) += cx24110.o
		obj-$(CONFIG_DVB_TDA8083) += tda8083.o
		obj-$(CONFIG_DVB_L64781) += l64781.o
		@@ -22,7 +21,6 @@ obj-$(CONFIG_DVB_SP887X) += sp887x.o
		obj-$(CONFIG_DVB_NXT6000) += nxt6000.o
		obj-$(CONFIG_DVB_MT352) += mt352.o
		obj-$(CONFIG_DVB_CX22702) += cx22702.o
		obj-$(CONFIG_DVB_TDA80XX) += tda80xx.o
		obj-$(CONFIG_DVB_TDA10021) += tda10021.o
		obj-$(CONFIG_DVB_STV0297) += stv0297.o
		obj-$(CONFIG_DVB_NXT200X) += nxt200x.o

drivers/media/dvb/frontends/at76c651.c

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/*
		* at76c651.c
		*
		* Atmel DVB-C Frontend Driver (at76c651/tua6010xs)
		*
		* Copyright (C) 2001 fnbrd <fnbrd@gmx.de>
		* & 2002-2004 Andreas Oberritter <obi@linuxtv.org>
		* & 2003 Wolfram Joost <dbox2@frokaschwei.de>
		*
		* 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.
		*
		* AT76C651
		* http://www.nalanda.nitc.ac.in/industry/datasheets/atmel/acrobat/doc1293.pdf
		* http://www.atmel.com/atmel/acrobat/doc1320.pdf
		*/

		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/moduleparam.h>
		#include <linux/kernel.h>
		#include <linux/string.h>
		#include <linux/slab.h>
		#include <linux/bitops.h>
		#include "dvb_frontend.h"
		#include "at76c651.h"


		struct at76c651_state {

		struct i2c_adapter* i2c;

		struct dvb_frontend_ops ops;

		const struct at76c651_config* config;

		struct dvb_frontend frontend;

		/* revision of the chip */
		u8 revision;

		/* last QAM value set */
		u8 qam;
		};

		static int debug;
		#define dprintk(args...) \
		do { \
		if (debug) printk(KERN_DEBUG "at76c651: " args); \
		} while (0)


		#if ! defined(__powerpc__)
		static __inline__ int __ilog2(unsigned long x)
		{
		int i;

		if (x == 0)
		return -1;

		for (i = 0; x != 0; i++)
		x >>= 1;

		return i - 1;
		}
		#endif

		static int at76c651_writereg(struct at76c651_state* state, u8 reg, u8 data)
		{
		int ret;
		u8 buf[] = { reg, data };
		struct i2c_msg msg =
		{ .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };

		ret = i2c_transfer(state->i2c, &msg, 1);

		if (ret != 1)
		dprintk("%s: writereg error "
		"(reg == 0x%02x, val == 0x%02x, ret == %i)\n",
		__FUNCTION__, reg, data, ret);

		msleep(10);

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

		static u8 at76c651_readreg(struct at76c651_state* state, u8 reg)
		{
		int ret;
		u8 val;
		struct i2c_msg msg[] = {
		{ .addr = state->config->demod_address, .flags = 0, .buf = &reg, .len = 1 },
		{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = &val, .len = 1 }
		};

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

		if (ret != 2)
		dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);

		return val;
		}

		static int at76c651_reset(struct at76c651_state* state)
		{
		return at76c651_writereg(state, 0x07, 0x01);
		}

		static void at76c651_disable_interrupts(struct at76c651_state* state)
		{
		at76c651_writereg(state, 0x0b, 0x00);
		}

		static int at76c651_set_auto_config(struct at76c651_state *state)
		{
		/*
		* Autoconfig
		*/

		at76c651_writereg(state, 0x06, 0x01);

		/*
		* Performance optimizations, should be done after autoconfig
		*/

		at76c651_writereg(state, 0x10, 0x06);
		at76c651_writereg(state, 0x11, ((state->qam == 5) \|\| (state->qam == 7)) ? 0x12 : 0x10);
		at76c651_writereg(state, 0x15, 0x28);
		at76c651_writereg(state, 0x20, 0x09);
		at76c651_writereg(state, 0x24, ((state->qam == 5) \|\| (state->qam == 7)) ? 0xC0 : 0x90);
		at76c651_writereg(state, 0x30, 0x90);
		if (state->qam == 5)
		at76c651_writereg(state, 0x35, 0x2A);

		/*
		* Initialize A/D-converter
		*/

		if (state->revision == 0x11) {
		at76c651_writereg(state, 0x2E, 0x38);
		at76c651_writereg(state, 0x2F, 0x13);
		}

		at76c651_disable_interrupts(state);

		/*
		* Restart operation
		*/

		at76c651_reset(state);

		return 0;
		}

		static void at76c651_set_bbfreq(struct at76c651_state* state)
		{
		at76c651_writereg(state, 0x04, 0x3f);
		at76c651_writereg(state, 0x05, 0xee);
		}

		static int at76c651_set_symbol_rate(struct at76c651_state* state, u32 symbol_rate)
		{
		u8 exponent;
		u32 mantissa;

		if (symbol_rate > 9360000)
		return -EINVAL;

		/*
		* FREF = 57800 kHz
		* exponent = 10 + floor (log2(symbol_rate / FREF))
		* mantissa = (symbol_rate / FREF) * (1 << (30 - exponent))
		*/

		exponent = __ilog2((symbol_rate << 4) / 903125);
		mantissa = ((symbol_rate / 3125) * (1 << (24 - exponent))) / 289;

		at76c651_writereg(state, 0x00, mantissa >> 13);
		at76c651_writereg(state, 0x01, mantissa >> 5);
		at76c651_writereg(state, 0x02, (mantissa << 3) \| exponent);

		return 0;
		}

		static int at76c651_set_qam(struct at76c651_state *state, fe_modulation_t qam)
		{
		switch (qam) {
		case QPSK:
		state->qam = 0x02;
		break;
		case QAM_16:
		state->qam = 0x04;
		break;
		case QAM_32:
		state->qam = 0x05;
		break;
		case QAM_64:
		state->qam = 0x06;
		break;
		case QAM_128:
		state->qam = 0x07;
		break;
		case QAM_256:
		state->qam = 0x08;
		break;
		#if 0
		case QAM_512:
		state->qam = 0x09;
		break;
		case QAM_1024:
		state->qam = 0x0A;
		break;
		#endif
		default:
		return -EINVAL;

		}

		return at76c651_writereg(state, 0x03, state->qam);
		}

		static int at76c651_set_inversion(struct at76c651_state* state, fe_spectral_inversion_t inversion)
		{
		u8 feciqinv = at76c651_readreg(state, 0x60);

		switch (inversion) {
		case INVERSION_OFF:
		feciqinv \|= 0x02;
		feciqinv &= 0xFE;
		break;

		case INVERSION_ON:
		feciqinv \|= 0x03;
		break;

		case INVERSION_AUTO:
		feciqinv &= 0xFC;
		break;

		default:
		return -EINVAL;
		}

		return at76c651_writereg(state, 0x60, feciqinv);
		}

		static int at76c651_set_parameters(struct dvb_frontend* fe,
		struct dvb_frontend_parameters *p)
		{
		int ret;
		struct at76c651_state* state = fe->demodulator_priv;

		at76c651_writereg(state, 0x0c, 0xc3);
		state->config->pll_set(fe, p);
		at76c651_writereg(state, 0x0c, 0xc2);

		if ((ret = at76c651_set_symbol_rate(state, p->u.qam.symbol_rate)))
		return ret;

		if ((ret = at76c651_set_inversion(state, p->inversion)))
		return ret;

		return at76c651_set_auto_config(state);
		}

		static int at76c651_set_defaults(struct dvb_frontend* fe)
		{
		struct at76c651_state* state = fe->demodulator_priv;

		at76c651_set_symbol_rate(state, 6900000);
		at76c651_set_qam(state, QAM_64);
		at76c651_set_bbfreq(state);
		at76c651_set_auto_config(state);

		if (state->config->pll_init) {
		at76c651_writereg(state, 0x0c, 0xc3);
		state->config->pll_init(fe);
		at76c651_writereg(state, 0x0c, 0xc2);
		}

		return 0;
		}

		static int at76c651_read_status(struct dvb_frontend* fe, fe_status_t* status)
		{
		struct at76c651_state* state = fe->demodulator_priv;
		u8 sync;

		/*
		* Bits: FEC, CAR, EQU, TIM, AGC2, AGC1, ADC, PLL (PLL=0)
		*/
		sync = at76c651_readreg(state, 0x80);
		*status = 0;

		if (sync & (0x04 \| 0x10)) /* AGC1 \|\| TIM */
		*status \|= FE_HAS_SIGNAL;
		if (sync & 0x10) /* TIM */
		*status \|= FE_HAS_CARRIER;
		if (sync & 0x80) /* FEC */
		*status \|= FE_HAS_VITERBI;
		if (sync & 0x40) /* CAR */
		*status \|= FE_HAS_SYNC;
		if ((sync & 0xF0) == 0xF0) /* TIM && EQU && CAR && FEC */
		*status \|= FE_HAS_LOCK;

		return 0;
		}

		static int at76c651_read_ber(struct dvb_frontend* fe, u32* ber)
		{
		struct at76c651_state* state = fe->demodulator_priv;

		*ber = (at76c651_readreg(state, 0x81) & 0x0F) << 16;
		*ber \|= at76c651_readreg(state, 0x82) << 8;
		*ber \|= at76c651_readreg(state, 0x83);
		ber = 10;

		return 0;
		}

		static int at76c651_read_signal_strength(struct dvb_frontend* fe, u16* strength)
		{
		struct at76c651_state* state = fe->demodulator_priv;

		u8 gain = ~at76c651_readreg(state, 0x91);
		*strength = (gain << 8) \| gain;

		return 0;
		}

		static int at76c651_read_snr(struct dvb_frontend* fe, u16* snr)
		{
		struct at76c651_state* state = fe->demodulator_priv;

		*snr = 0xFFFF -
		((at76c651_readreg(state, 0x8F) << 8) \|
		at76c651_readreg(state, 0x90));

		return 0;
		}

		static int at76c651_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
		{
		struct at76c651_state* state = fe->demodulator_priv;

		*ucblocks = at76c651_readreg(state, 0x82);

		return 0;
		}

		static int at76c651_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *fesettings)
		{
		fesettings->min_delay_ms = 50;
		fesettings->step_size = 0;
		fesettings->max_drift = 0;
		return 0;
		}

		static void at76c651_release(struct dvb_frontend* fe)
		{
		struct at76c651_state* state = fe->demodulator_priv;
		kfree(state);
		}

		static struct dvb_frontend_ops at76c651_ops;

		struct dvb_frontend* at76c651_attach(const struct at76c651_config* config,
		struct i2c_adapter* i2c)
		{
		struct at76c651_state* state = NULL;

		/* allocate memory for the internal state */
		state = kmalloc(sizeof(struct at76c651_state), GFP_KERNEL);
		if (state == NULL) goto error;

		/* setup the state */
		state->config = config;
		state->qam = 0;

		/* check if the demod is there */
		if (at76c651_readreg(state, 0x0e) != 0x65) goto error;

		/* finalise state setup */
		state->i2c = i2c;
		state->revision = at76c651_readreg(state, 0x0f) & 0xfe;
		memcpy(&state->ops, &at76c651_ops, sizeof(struct dvb_frontend_ops));

		/* create dvb_frontend */
		state->frontend.ops = &state->ops;
		state->frontend.demodulator_priv = state;
		return &state->frontend;

		error:
		kfree(state);
		return NULL;
		}

		static struct dvb_frontend_ops at76c651_ops = {

		.info = {
		.name = "Atmel AT76C651B DVB-C",
		.type = FE_QAM,
		.frequency_min = 48250000,
		.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_INVERSION_AUTO \|
		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_32 \| FE_CAN_QAM_64 \| FE_CAN_QAM_128 \|
		FE_CAN_MUTE_TS \| FE_CAN_QAM_256 \| FE_CAN_RECOVER
		},

		.release = at76c651_release,

		.init = at76c651_set_defaults,

		.set_frontend = at76c651_set_parameters,
		.get_tune_settings = at76c651_get_tune_settings,

		.read_status = at76c651_read_status,
		.read_ber = at76c651_read_ber,
		.read_signal_strength = at76c651_read_signal_strength,
		.read_snr = at76c651_read_snr,
		.read_ucblocks = at76c651_read_ucblocks,
		};

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

		MODULE_DESCRIPTION("Atmel AT76C651 DVB-C Demodulator Driver");
		MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
		MODULE_LICENSE("GPL");

		EXPORT_SYMBOL(at76c651_attach);

drivers/media/dvb/frontends/at76c651.h

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/*
		* at76c651.c
		*
		* Atmel DVB-C Frontend Driver (at76c651)
		*
		* Copyright (C) 2001 fnbrd <fnbrd@gmx.de>
		* & 2002-2004 Andreas Oberritter <obi@linuxtv.org>
		* & 2003 Wolfram Joost <dbox2@frokaschwei.de>
		*
		* 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.
		*
		* AT76C651
		* http://www.nalanda.nitc.ac.in/industry/datasheets/atmel/acrobat/doc1293.pdf
		* http://www.atmel.com/atmel/acrobat/doc1320.pdf
		*/

		#ifndef AT76C651_H
		#define AT76C651_H

		#include <linux/dvb/frontend.h>

		struct at76c651_config
		{
		/* the demodulator's i2c address */
		u8 demod_address;

		/* PLL maintenance */
		int (pll_init)(struct dvb_frontend fe);
		int (pll_set)(struct dvb_frontend fe, struct dvb_frontend_parameters* params);
		};

		extern struct dvb_frontend* at76c651_attach(const struct at76c651_config* config,
		struct i2c_adapter* i2c);

		#endif // AT76C651_H

drivers/media/dvb/frontends/tda80xx.c

deleted100644 → 0

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File deleted.

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