[media] common: move media/common/tuners to media/tuners

Move the tuners one level up, as the "common" directory will be used
by drivers that are shared between more than one driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 403 deletions

diff --git a/drivers/media/common/tuners/mt2060.c b/drivers/media/common/tuners/mt2060.c
deleted file mode 100644
index 13381de58a84..000000000000
--- a/drivers/media/common/tuners/mt2060.c
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- *  Driver for Microtune MT2060 "Single chip dual conversion broadband tuner"
- *
- *  Copyright (c) 2006 Olivier DANET <odanet@caramail.com>
- *
- *  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.=
- */
-
-/* In that file, frequencies are expressed in kiloHertz to avoid 32 bits overflows */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/dvb/frontend.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-
-#include "dvb_frontend.h"
-
-#include "mt2060.h"
-#include "mt2060_priv.h"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
-
-#define dprintk(args...) do { if (debug) {printk(KERN_DEBUG "MT2060: " args); printk("\n"); }} while (0)
-
-// Reads a single register
-static int mt2060_readreg(struct mt2060_priv *priv, u8 reg, u8 *val)
-{
-	struct i2c_msg msg[2] = {
-		{ .addr = priv->cfg->i2c_address, .flags = 0,        .buf = &reg, .len = 1 },
-		{ .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .buf = val,  .len = 1 },
-	};
-
-	if (i2c_transfer(priv->i2c, msg, 2) != 2) {
-		printk(KERN_WARNING "mt2060 I2C read failed\n");
-		return -EREMOTEIO;
-	}
-	return 0;
-}
-
-// Writes a single register
-static int mt2060_writereg(struct mt2060_priv *priv, u8 reg, u8 val)
-{
-	u8 buf[2] = { reg, val };
-	struct i2c_msg msg = {
-		.addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2
-	};
-
-	if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
-		printk(KERN_WARNING "mt2060 I2C write failed\n");
-		return -EREMOTEIO;
-	}
-	return 0;
-}
-
-// Writes a set of consecutive registers
-static int mt2060_writeregs(struct mt2060_priv *priv,u8 *buf, u8 len)
-{
-	struct i2c_msg msg = {
-		.addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = len
-	};
-	if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
-		printk(KERN_WARNING "mt2060 I2C write failed (len=%i)\n",(int)len);
-		return -EREMOTEIO;
-	}
-	return 0;
-}
-
-// Initialisation sequences
-// LNABAND=3, NUM1=0x3C, DIV1=0x74, NUM2=0x1080, DIV2=0x49
-static u8 mt2060_config1[] = {
-	REG_LO1C1,
-	0x3F,	0x74,	0x00,	0x08,	0x93
-};
-
-// FMCG=2, GP2=0, GP1=0
-static u8 mt2060_config2[] = {
-	REG_MISC_CTRL,
-	0x20,	0x1E,	0x30,	0xff,	0x80,	0xff,	0x00,	0x2c,	0x42
-};
-
-//  VGAG=3, V1CSE=1
-
-#ifdef  MT2060_SPURCHECK
-/* The function below calculates the frequency offset between the output frequency if2
- and the closer cross modulation subcarrier between lo1 and lo2 up to the tenth harmonic */
-static int mt2060_spurcalc(u32 lo1,u32 lo2,u32 if2)
-{
-	int I,J;
-	int dia,diamin,diff;
-	diamin=1000000;
-	for (I = 1; I < 10; I++) {
-		J = ((2*I*lo1)/lo2+1)/2;
-		diff = I*(int)lo1-J*(int)lo2;
-		if (diff < 0) diff=-diff;
-		dia = (diff-(int)if2);
-		if (dia < 0) dia=-dia;
-		if (diamin > dia) diamin=dia;
-	}
-	return diamin;
-}
-
-#define BANDWIDTH 4000 // kHz
-
-/* Calculates the frequency offset to add to avoid spurs. Returns 0 if no offset is needed */
-static int mt2060_spurcheck(u32 lo1,u32 lo2,u32 if2)
-{
-	u32 Spur,Sp1,Sp2;
-	int I,J;
-	I=0;
-	J=1000;
-
-	Spur=mt2060_spurcalc(lo1,lo2,if2);
-	if (Spur < BANDWIDTH) {
-		/* Potential spurs detected */
-		dprintk("Spurs before : f_lo1: %d  f_lo2: %d  (kHz)",
-			(int)lo1,(int)lo2);
-		I=1000;
-		Sp1 = mt2060_spurcalc(lo1+I,lo2+I,if2);
-		Sp2 = mt2060_spurcalc(lo1-I,lo2-I,if2);
-
-		if (Sp1 < Sp2) {
-			J=-J; I=-I; Spur=Sp2;
-		} else
-			Spur=Sp1;
-
-		while (Spur < BANDWIDTH) {
-			I += J;
-			Spur = mt2060_spurcalc(lo1+I,lo2+I,if2);
-		}
-		dprintk("Spurs after  : f_lo1: %d  f_lo2: %d  (kHz)",
-			(int)(lo1+I),(int)(lo2+I));
-	}
-	return I;
-}
-#endif
-
-#define IF2  36150       // IF2 frequency = 36.150 MHz
-#define FREF 16000       // Quartz oscillator 16 MHz
-
-static int mt2060_set_params(struct dvb_frontend *fe)
-{
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	struct mt2060_priv *priv;
-	int ret=0;
-	int i=0;
-	u32 freq;
-	u8  lnaband;
-	u32 f_lo1,f_lo2;
-	u32 div1,num1,div2,num2;
-	u8  b[8];
-	u32 if1;
-
-	priv = fe->tuner_priv;
-
-	if1 = priv->if1_freq;
-	b[0] = REG_LO1B1;
-	b[1] = 0xFF;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */
-
-	mt2060_writeregs(priv,b,2);
-
-	freq = c->frequency / 1000; /* Hz -> kHz */
-
-	f_lo1 = freq + if1 * 1000;
-	f_lo1 = (f_lo1 / 250) * 250;
-	f_lo2 = f_lo1 - freq - IF2;
-	// From the Comtech datasheet, the step used is 50kHz. The tuner chip could be more precise
-	f_lo2 = ((f_lo2 + 25) / 50) * 50;
-	priv->frequency =  (f_lo1 - f_lo2 - IF2) * 1000,
-
-#ifdef MT2060_SPURCHECK
-	// LO-related spurs detection and correction
-	num1   = mt2060_spurcheck(f_lo1,f_lo2,IF2);
-	f_lo1 += num1;
-	f_lo2 += num1;
-#endif
-	//Frequency LO1 = 16MHz * (DIV1 + NUM1/64 )
-	num1 = f_lo1 / (FREF / 64);
-	div1 = num1 / 64;
-	num1 &= 0x3f;
-
-	// Frequency LO2 = 16MHz * (DIV2 + NUM2/8192 )
-	num2 = f_lo2 * 64 / (FREF / 128);
-	div2 = num2 / 8192;
-	num2 &= 0x1fff;
-
-	if (freq <=  95000) lnaband = 0xB0; else
-	if (freq <= 180000) lnaband = 0xA0; else
-	if (freq <= 260000) lnaband = 0x90; else
-	if (freq <= 335000) lnaband = 0x80; else
-	if (freq <= 425000) lnaband = 0x70; else
-	if (freq <= 480000) lnaband = 0x60; else
-	if (freq <= 570000) lnaband = 0x50; else
-	if (freq <= 645000) lnaband = 0x40; else
-	if (freq <= 730000) lnaband = 0x30; else
-	if (freq <= 810000) lnaband = 0x20; else lnaband = 0x10;
-
-	b[0] = REG_LO1C1;
-	b[1] = lnaband | ((num1 >>2) & 0x0F);
-	b[2] = div1;
-	b[3] = (num2 & 0x0F)  | ((num1 & 3) << 4);
-	b[4] = num2 >> 4;
-	b[5] = ((num2 >>12) & 1) | (div2 << 1);
-
-	dprintk("IF1: %dMHz",(int)if1);
-	dprintk("PLL freq=%dkHz  f_lo1=%dkHz  f_lo2=%dkHz",(int)freq,(int)f_lo1,(int)f_lo2);
-	dprintk("PLL div1=%d  num1=%d  div2=%d  num2=%d",(int)div1,(int)num1,(int)div2,(int)num2);
-	dprintk("PLL [1..5]: %2x %2x %2x %2x %2x",(int)b[1],(int)b[2],(int)b[3],(int)b[4],(int)b[5]);
-
-	mt2060_writeregs(priv,b,6);
-
-	//Waits for pll lock or timeout
-	i = 0;
-	do {
-		mt2060_readreg(priv,REG_LO_STATUS,b);
-		if ((b[0] & 0x88)==0x88)
-			break;
-		msleep(4);
-		i++;
-	} while (i<10);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */
-
-	return ret;
-}
-
-static void mt2060_calibrate(struct mt2060_priv *priv)
-{
-	u8 b = 0;
-	int i = 0;
-
-	if (mt2060_writeregs(priv,mt2060_config1,sizeof(mt2060_config1)))
-		return;
-	if (mt2060_writeregs(priv,mt2060_config2,sizeof(mt2060_config2)))
-		return;
-
-	/* initialize the clock output */
-	mt2060_writereg(priv, REG_VGAG, (priv->cfg->clock_out << 6) | 0x30);
-
-	do {
-		b |= (1 << 6); // FM1SS;
-		mt2060_writereg(priv, REG_LO2C1,b);
-		msleep(20);
-
-		if (i == 0) {
-			b |= (1 << 7); // FM1CA;
-			mt2060_writereg(priv, REG_LO2C1,b);
-			b &= ~(1 << 7); // FM1CA;
-			msleep(20);
-		}
-
-		b &= ~(1 << 6); // FM1SS
-		mt2060_writereg(priv, REG_LO2C1,b);
-
-		msleep(20);
-		i++;
-	} while (i < 9);
-
-	i = 0;
-	while (i++ < 10 && mt2060_readreg(priv, REG_MISC_STAT, &b) == 0 && (b & (1 << 6)) == 0)
-		msleep(20);
-
-	if (i <= 10) {
-		mt2060_readreg(priv, REG_FM_FREQ, &priv->fmfreq); // now find out, what is fmreq used for :)
-		dprintk("calibration was successful: %d", (int)priv->fmfreq);
-	} else
-		dprintk("FMCAL timed out");
-}
-
-static int mt2060_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
-	struct mt2060_priv *priv = fe->tuner_priv;
-	*frequency = priv->frequency;
-	return 0;
-}
-
-static int mt2060_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
-	*frequency = IF2 * 1000;
-	return 0;
-}
-
-static int mt2060_init(struct dvb_frontend *fe)
-{
-	struct mt2060_priv *priv = fe->tuner_priv;
-	int ret;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */
-
-	ret = mt2060_writereg(priv, REG_VGAG,
-			      (priv->cfg->clock_out << 6) | 0x33);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */
-
-	return ret;
-}
-
-static int mt2060_sleep(struct dvb_frontend *fe)
-{
-	struct mt2060_priv *priv = fe->tuner_priv;
-	int ret;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */
-
-	ret = mt2060_writereg(priv, REG_VGAG,
-			      (priv->cfg->clock_out << 6) | 0x30);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */
-
-	return ret;
-}
-
-static int mt2060_release(struct dvb_frontend *fe)
-{
-	kfree(fe->tuner_priv);
-	fe->tuner_priv = NULL;
-	return 0;
-}
-
-static const struct dvb_tuner_ops mt2060_tuner_ops = {
-	.info = {
-		.name           = "Microtune MT2060",
-		.frequency_min  =  48000000,
-		.frequency_max  = 860000000,
-		.frequency_step =     50000,
-	},
-
-	.release       = mt2060_release,
-
-	.init          = mt2060_init,
-	.sleep         = mt2060_sleep,
-
-	.set_params    = mt2060_set_params,
-	.get_frequency = mt2060_get_frequency,
-	.get_if_frequency = mt2060_get_if_frequency,
-};
-
-/* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */
-struct dvb_frontend * mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1)
-{
-	struct mt2060_priv *priv = NULL;
-	u8 id = 0;
-
-	priv = kzalloc(sizeof(struct mt2060_priv), GFP_KERNEL);
-	if (priv == NULL)
-		return NULL;
-
-	priv->cfg      = cfg;
-	priv->i2c      = i2c;
-	priv->if1_freq = if1;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */
-
-	if (mt2060_readreg(priv,REG_PART_REV,&id) != 0) {
-		kfree(priv);
-		return NULL;
-	}
-
-	if (id != PART_REV) {
-		kfree(priv);
-		return NULL;
-	}
-	printk(KERN_INFO "MT2060: successfully identified (IF1 = %d)\n", if1);
-	memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(struct dvb_tuner_ops));
-
-	fe->tuner_priv = priv;
-
-	mt2060_calibrate(priv);
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */
-
-	return fe;
-}
-EXPORT_SYMBOL(mt2060_attach);
-
-MODULE_AUTHOR("Olivier DANET");
-MODULE_DESCRIPTION("Microtune MT2060 silicon tuner driver");
-MODULE_LICENSE("GPL");