Merge branch 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'mantis' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (117 commits)
  V4L/DVB (13851): Fix Input dependency for Mantis
  V4L/DVB(13824a): mantis: Fix __devexit bad annotations
  V4L/DVB (13808b): mantis: replace DMA_nnBIT_MASK to DMA_BIT_MASK(32)
  V4L/DVB (13808): [Mantis/Hopper] Build update for Mantis/Hopper based cards
  V4L/DVB(13808a): mantis: convert it to the new ir-core register/unregister functions
  V4L/DVB (13812): [Mantis/Hopper] Update Copyright header
  V4L/DVB (13811): [MB86A16] Update Copyright header
  V4L/DVB (13810): [MB86A16] Use DVB_* macros
  V4L/DVB (13809): Fix Checkpatch violations
  V4L/DVB (13807): Fix: Free device in the device registration failure case
  V4L/DVB (13806): Register and Initialize Remote control
  V4L/DVB (13805): Fix: Unregister the frontend before detaching
  V4L/DVB (13804): Remove unused I2C Adapter ID
  V4L/DVB (13803): Remove unused dependency on CU1216
  V4L/DVB (13802): [Mantis/Hopper] Fix all build related warnings
  V4L/DVB (13801): [MB86A16] Use the search callback
  V4L/DVB (13800): [Mantis] I2C optimization. Required delay is much lesser than 1mS.
  V4L/DVB (13799): [Mantis] Unregister frontend
  V4L/DVB (13798): [Mantis] Enable power for all cards, use byte mode only on relevant devices
  V4L/DVB (13797): [Mantis/Hopper/TDA665x] Large overhaul,
  ...

54 files changed, 7801 insertions, 1 deletions

diff --git a/drivers/media/dvb/Kconfig b/drivers/media/dvb/Kconfig
index 35d0817126e9..cf8f65f309da 100644
--- a/drivers/media/dvb/Kconfig
+++ b/drivers/media/dvb/Kconfig
@@ -72,6 +72,10 @@ comment "Supported Earthsoft PT1 Adapters"
 	depends on DVB_CORE && PCI && I2C
 source "drivers/media/dvb/pt1/Kconfig"
 
+comment "Supported Mantis Adapters"
+	depends on DVB_CORE && PCI && I2C
+	source "drivers/media/dvb/mantis/Kconfig"
+
 comment "Supported DVB Frontends"
 	depends on DVB_CORE
 source "drivers/media/dvb/frontends/Kconfig"
diff --git a/drivers/media/dvb/Makefile b/drivers/media/dvb/Makefile
index 16d262ddb45d..c12922c3659b 100644
--- a/drivers/media/dvb/Makefile
+++ b/drivers/media/dvb/Makefile
@@ -2,6 +2,18 @@
 # Makefile for the kernel multimedia device drivers.
 #
 
-obj-y        := dvb-core/ frontends/ ttpci/ ttusb-dec/ ttusb-budget/ b2c2/ bt8xx/ dvb-usb/ pluto2/ siano/ dm1105/ pt1/
+obj-y        := dvb-core/	\
+		frontends/	\
+		ttpci/		\
+		ttusb-dec/	\
+		ttusb-budget/	\
+		b2c2/		\
+		bt8xx/		\
+		dvb-usb/	\
+		pluto2/		\
+		siano/		\
+		dm1105/		\
+		pt1/		\
+		mantis/
 
 obj-$(CONFIG_DVB_FIREDTV)	+= firewire/
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index a3b8b697349b..cd7f9b7cbffa 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -208,6 +208,14 @@ config DVB_DS3000
 	help
 	  A DVB-S/S2 tuner module. Say Y when you want to support this frontend.
 
+config DVB_MB86A16
+	tristate "Fujitsu MB86A16 based"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  A DVB-S/DSS Direct Conversion reveiver.
+	  Say Y when you want to support this frontend.
+
 comment "DVB-T (terrestrial) frontends"
 	depends on DVB_CORE
 
@@ -587,6 +595,17 @@ config DVB_ATBM8830
 	help
 	  A DMB-TH tuner module. Say Y when you want to support this frontend.
 
+config DVB_TDA665x
+	tristate "TDA665x tuner"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  Support for tuner modules based on Philips TDA6650/TDA6651 chips.
+	  Say Y when you want to support this chip.
+
+	  Currently supported tuners:
+	  * Panasonic ENV57H12D5 (ET-50DT)
+
 comment "Tools to develop new frontends"
 
 config DVB_DUMMY_FE
diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile
index 47575cc7b699..874e8ada4d1d 100644
--- a/drivers/media/dvb/frontends/Makefile
+++ b/drivers/media/dvb/frontends/Makefile
@@ -64,6 +64,7 @@ obj-$(CONFIG_DVB_TDA10048) += tda10048.o
 obj-$(CONFIG_DVB_TUNER_CX24113) += cx24113.o
 obj-$(CONFIG_DVB_S5H1411) += s5h1411.o
 obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o
+obj-$(CONFIG_DVB_TDA665x) += tda665x.o
 obj-$(CONFIG_DVB_LGS8GXX) += lgs8gxx.o
 obj-$(CONFIG_DVB_ATBM8830) += atbm8830.o
 obj-$(CONFIG_DVB_DUMMY_FE) += dvb_dummy_fe.o
@@ -80,3 +81,4 @@ obj-$(CONFIG_DVB_STV6110x) += stv6110x.o
 obj-$(CONFIG_DVB_ISL6423) += isl6423.o
 obj-$(CONFIG_DVB_EC100) += ec100.o
 obj-$(CONFIG_DVB_DS3000) += ds3000.o
+obj-$(CONFIG_DVB_MB86A16) += mb86a16.o
diff --git a/drivers/media/dvb/frontends/mb86a16.c b/drivers/media/dvb/frontends/mb86a16.c
new file mode 100644
index 000000000000..d05f7500e0c5
--- /dev/null
+++ b/drivers/media/dvb/frontends/mb86a16.c
@@ -0,0 +1,1878 @@
+/*
+	Fujitsu MB86A16 DVB-S/DSS DC Receiver driver
+
+	Copyright (C) Manu Abraham (abraham.manu@gmail.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.
+*/
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+
+#include "dvb_frontend.h"
+#include "mb86a16.h"
+#include "mb86a16_priv.h"
+
+unsigned int verbose = 5;
+module_param(verbose, int, 0644);
+
+#define ABS(x)		((x) < 0 ? (-x) : (x))
+
+struct mb86a16_state {
+	struct i2c_adapter		*i2c_adap;
+	const struct mb86a16_config	*config;
+	struct dvb_frontend		frontend;
+
+	/* tuning parameters */
+	int				frequency;
+	int				srate;
+
+	/* Internal stuff */
+	int				master_clk;
+	int				deci;
+	int				csel;
+	int				rsel;
+};
+
+#define MB86A16_ERROR		0
+#define MB86A16_NOTICE		1
+#define MB86A16_INFO		2
+#define MB86A16_DEBUG		3
+
+#define dprintk(x, y, z, format, arg...) do {						\
+	if (z) {									\
+		if	((x > MB86A16_ERROR) && (x > y))				\
+			printk(KERN_ERR "%s: " format "\n", __func__, ##arg);		\
+		else if ((x > MB86A16_NOTICE) && (x > y))				\
+			printk(KERN_NOTICE "%s: " format "\n", __func__, ##arg);	\
+		else if ((x > MB86A16_INFO) && (x > y))					\
+			printk(KERN_INFO "%s: " format "\n", __func__, ##arg);		\
+		else if ((x > MB86A16_DEBUG) && (x > y))				\
+			printk(KERN_DEBUG "%s: " format "\n", __func__, ##arg);		\
+	} else {									\
+		if (x > y)								\
+			printk(format, ##arg);						\
+	}										\
+} while (0)
+
+#define TRACE_IN	dprintk(verbose, MB86A16_DEBUG, 1, "-->()")
+#define TRACE_OUT	dprintk(verbose, MB86A16_DEBUG, 1, "()-->")
+
+static int mb86a16_write(struct mb86a16_state *state, u8 reg, u8 val)
+{
+	int ret;
+	u8 buf[] = { reg, val };
+
+	struct i2c_msg msg = {
+		.addr = state->config->demod_address,
+		.flags = 0,
+		.buf = buf,
+		.len = 2
+	};
+
+	dprintk(verbose, MB86A16_DEBUG, 1,
+		"writing to [0x%02x],Reg[0x%02x],Data[0x%02x]",
+		state->config->demod_address, buf[0], buf[1]);
+
+	ret = i2c_transfer(state->i2c_adap, &msg, 1);
+
+	return (ret != 1) ? -EREMOTEIO : 0;
+}
+
+static int mb86a16_read(struct mb86a16_state *state, u8 reg, u8 *val)
+{
+	int ret;
+	u8 b0[] = { reg };
+	u8 b1[] = { 0 };
+
+	struct i2c_msg msg[] = {
+		{
+			.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_adap, msg, 2);
+	if (ret != 2) {
+		dprintk(verbose, MB86A16_ERROR, 1, "read error(reg=0x%02x, ret=0x%i)",
+			reg, ret);
+
+		return -EREMOTEIO;
+	}
+	*val = b1[0];
+
+	return ret;
+}
+
+static int CNTM_set(struct mb86a16_state *state,
+		    unsigned char timint1,
+		    unsigned char timint2,
+		    unsigned char cnext)
+{
+	unsigned char val;
+
+	val = (timint1 << 4) | (timint2 << 2) | cnext;
+	if (mb86a16_write(state, MB86A16_CNTMR, val) < 0)
+		goto err;
+
+	return 0;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int smrt_set(struct mb86a16_state *state, int rate)
+{
+	int tmp ;
+	int m ;
+	unsigned char STOFS0, STOFS1;
+
+	m = 1 << state->deci;
+	tmp = (8192 * state->master_clk - 2 * m * rate * 8192 + state->master_clk / 2) / state->master_clk;
+
+	STOFS0 = tmp & 0x0ff;
+	STOFS1 = (tmp & 0xf00) >> 8;
+
+	if (mb86a16_write(state, MB86A16_SRATE1, (state->deci << 2) |
+				       (state->csel << 1) |
+					state->rsel) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_SRATE2, STOFS0) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_SRATE3, STOFS1) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -1;
+}
+
+static int srst(struct mb86a16_state *state)
+{
+	if (mb86a16_write(state, MB86A16_RESET, 0x04) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+
+}
+
+static int afcex_data_set(struct mb86a16_state *state,
+			  unsigned char AFCEX_L,
+			  unsigned char AFCEX_H)
+{
+	if (mb86a16_write(state, MB86A16_AFCEXL, AFCEX_L) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_AFCEXH, AFCEX_H) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+
+	return -1;
+}
+
+static int afcofs_data_set(struct mb86a16_state *state,
+			   unsigned char AFCEX_L,
+			   unsigned char AFCEX_H)
+{
+	if (mb86a16_write(state, 0x58, AFCEX_L) < 0)
+		goto err;
+	if (mb86a16_write(state, 0x59, AFCEX_H) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int stlp_set(struct mb86a16_state *state,
+		    unsigned char STRAS,
+		    unsigned char STRBS)
+{
+	if (mb86a16_write(state, MB86A16_STRFILTCOEF1, (STRBS << 3) | (STRAS)) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int Vi_set(struct mb86a16_state *state, unsigned char ETH, unsigned char VIA)
+{
+	if (mb86a16_write(state, MB86A16_VISET2, 0x04) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_VISET3, 0xf5) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int initial_set(struct mb86a16_state *state)
+{
+	if (stlp_set(state, 5, 7))
+		goto err;
+
+	udelay(100);
+	if (afcex_data_set(state, 0, 0))
+		goto err;
+
+	udelay(100);
+	if (afcofs_data_set(state, 0, 0))
+		goto err;
+
+	udelay(100);
+	if (mb86a16_write(state, MB86A16_CRLFILTCOEF1, 0x16) < 0)
+		goto err;
+	if (mb86a16_write(state, 0x2f, 0x21) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_VIMAG, 0x38) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_FAGCS1, 0x00) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_FAGCS2, 0x1c) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_FAGCS3, 0x20) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_FAGCS4, 0x1e) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_FAGCS5, 0x23) < 0)
+		goto err;
+	if (mb86a16_write(state, 0x54, 0xff) < 0)
+		goto err;
+	if (mb86a16_write(state, MB86A16_TSOUT, 0x00) < 0)
+		goto err;
+
+	return 0;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int S01T_set(struct mb86a16_state *state,
+		    unsigned char s1t,
+		    unsigned s0t)
+{
+	if (mb86a16_write(state, 0x33, (s1t << 3) | s0t) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+
+static int EN_set(struct mb86a16_state *state,
+		  int cren,
+		  int afcen)
+{
+	unsigned char val;
+
+	val = 0x7a | (cren << 7) | (afcen << 2);
+	if (mb86a16_write(state, 0x49, val) < 0)
+		goto err;
+
+	return 0;
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int AFCEXEN_set(struct mb86a16_state *state,
+		       int afcexen,
+		       int smrt)
+{
+	unsigned char AFCA ;
+
+	if (smrt > 18875)
+		AFCA = 4;
+	else if (smrt > 9375)
+		AFCA = 3;
+	else if (smrt > 2250)
+		AFCA = 2;
+	else
+		AFCA = 1;
+
+	if (mb86a16_write(state, 0x2a, 0x02 | (afcexen << 5) | (AFCA << 2)) < 0)
+		goto err;
+
+	return 0;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int DAGC_data_set(struct mb86a16_state *state,
+			 unsigned char DAGCA,
+			 unsigned char DAGCW)
+{
+	if (mb86a16_write(state, 0x2d, (DAGCA << 3) | DAGCW) < 0)
+		goto err;
+
+	return 0;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static void smrt_info_get(struct mb86a16_state *state, int rate)
+{
+	if (rate >= 37501) {
+		state->deci = 0; state->csel = 0; state->rsel = 0;
+	} else if (rate >= 30001) {
+		state->deci = 0; state->csel = 0; state->rsel = 1;
+	} else if (rate >= 26251) {
+		state->deci = 0; state->csel = 1; state->rsel = 0;
+	} else if (rate >= 22501) {
+		state->deci = 0; state->csel = 1; state->rsel = 1;
+	} else if (rate >= 18751) {
+		state->deci = 1; state->csel = 0; state->rsel = 0;
+	} else if (rate >= 15001) {
+		state->deci = 1; state->csel = 0; state->rsel = 1;
+	} else if (rate >= 13126) {
+		state->deci = 1; state->csel = 1; state->rsel = 0;
+	} else if (rate >= 11251) {
+		state->deci = 1; state->csel = 1; state->rsel = 1;
+	} else if (rate >= 9376) {
+		state->deci = 2; state->csel = 0; state->rsel = 0;
+	} else if (rate >= 7501) {
+		state->deci = 2; state->csel = 0; state->rsel = 1;
+	} else if (rate >= 6563) {
+		state->deci = 2; state->csel = 1; state->rsel = 0;
+	} else if (rate >= 5626) {
+		state->deci = 2; state->csel = 1; state->rsel = 1;
+	} else if (rate >= 4688) {
+		state->deci = 3; state->csel = 0; state->rsel = 0;
+	} else if (rate >= 3751) {
+		state->deci = 3; state->csel = 0; state->rsel = 1;
+	} else if (rate >= 3282) {
+		state->deci = 3; state->csel = 1; state->rsel = 0;
+	} else if (rate >= 2814) {
+		state->deci = 3; state->csel = 1; state->rsel = 1;
+	} else if (rate >= 2344) {
+		state->deci = 4; state->csel = 0; state->rsel = 0;
+	} else if (rate >= 1876) {
+		state->deci = 4; state->csel = 0; state->rsel = 1;
+	} else if (rate >= 1641) {
+		state->deci = 4; state->csel = 1; state->rsel = 0;
+	} else if (rate >= 1407) {
+		state->deci = 4; state->csel = 1; state->rsel = 1;
+	} else if (rate >= 1172) {
+		state->deci = 5; state->csel = 0; state->rsel = 0;
+	} else if (rate >=  939) {
+		state->deci = 5; state->csel = 0; state->rsel = 1;
+	} else if (rate >=  821) {
+		state->deci = 5; state->csel = 1; state->rsel = 0;
+	} else {
+		state->deci = 5; state->csel = 1; state->rsel = 1;
+	}
+
+	if (state->csel == 0)
+		state->master_clk = 92000;
+	else
+		state->master_clk = 61333;
+
+}
+
+static int signal_det(struct mb86a16_state *state,
+		      int smrt,
+		      unsigned char *SIG)
+{
+
+	int ret ;
+	int smrtd ;
+	int wait_sym ;
+
+	u32 wait_t;
+	unsigned char S[3] ;
+	int i ;
+
+	if (*SIG > 45) {
+		if (CNTM_set(state, 2, 1, 2) < 0) {
+			dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+			return -1;
+		}
+		wait_sym = 40000;
+	} else {
+		if (CNTM_set(state, 3, 1, 2) < 0) {
+			dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+			return -1;
+		}
+		wait_sym = 80000;
+	}
+	for (i = 0; i < 3; i++) {
+		if (i == 0)
+			smrtd = smrt * 98 / 100;
+		else if (i == 1)
+			smrtd = smrt;
+		else
+			smrtd = smrt * 102 / 100;
+		smrt_info_get(state, smrtd);
+		smrt_set(state, smrtd);
+		srst(state);
+		wait_t = (wait_sym + 99 * smrtd / 100) / smrtd;
+		if (wait_t == 0)
+			wait_t = 1;
+		msleep_interruptible(10);
+		if (mb86a16_read(state, 0x37, &(S[i])) != 2) {
+			dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+			return -EREMOTEIO;
+		}
+	}
+	if ((S[1] > S[0] * 112 / 100) &&
+	    (S[1] > S[2] * 112 / 100)) {
+
+		ret = 1;
+	} else {
+		ret = 0;
+	}
+	*SIG = S[1];
+
+	if (CNTM_set(state, 0, 1, 2) < 0) {
+		dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+		return -1;
+	}
+
+	return ret;
+}
+
+static int rf_val_set(struct mb86a16_state *state,
+		      int f,
+		      int smrt,
+		      unsigned char R)
+{
+	unsigned char C, F, B;
+	int M;
+	unsigned char rf_val[5];
+	int ack = -1;
+
+	if (smrt > 37750)
+		C = 1;
+	else if (smrt > 18875)
+		C = 2;
+	else if (smrt > 5500)
+		C = 3;
+	else
+		C = 4;
+
+	if (smrt > 30500)
+		F = 3;
+	else if (smrt > 9375)
+		F = 1;
+	else if (smrt > 4625)
+		F = 0;
+	else
+		F = 2;
+
+	if (f < 1060)
+		B = 0;
+	else if (f < 1175)
+		B = 1;
+	else if (f < 1305)
+		B = 2;
+	else if (f < 1435)
+		B = 3;
+	else if (f < 1570)
+		B = 4;
+	else if (f < 1715)
+		B = 5;
+	else if (f < 1845)
+		B = 6;
+	else if (f < 1980)
+		B = 7;
+	else if (f < 2080)
+		B = 8;
+	else
+		B = 9;
+
+	M = f * (1 << R) / 2;
+
+	rf_val[0] = 0x01 | (C << 3) | (F << 1);
+	rf_val[1] = (R << 5) | ((M & 0x1f000) >> 12);
+	rf_val[2] = (M & 0x00ff0) >> 4;
+	rf_val[3] = ((M & 0x0000f) << 4) | B;
+
+	/* Frequency Set */
+	if (mb86a16_write(state, 0x21, rf_val[0]) < 0)
+		ack = 0;
+	if (mb86a16_write(state, 0x22, rf_val[1]) < 0)
+		ack = 0;
+	if (mb86a16_write(state, 0x23, rf_val[2]) < 0)
+		ack = 0;
+	if (mb86a16_write(state, 0x24, rf_val[3]) < 0)
+		ack = 0;
+	if (mb86a16_write(state, 0x25, 0x01) < 0)
+		ack = 0;
+	if (ack == 0) {
+		dprintk(verbose, MB86A16_ERROR, 1, "RF Setup - I2C transfer error");
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+static int afcerr_chk(struct mb86a16_state *state)
+{
+	unsigned char AFCM_L, AFCM_H ;
+	int AFCM ;
+	int afcm, afcerr ;
+
+	if (mb86a16_read(state, 0x0e, &AFCM_L) != 2)
+		goto err;
+	if (mb86a16_read(state, 0x0f, &AFCM_H) != 2)
+		goto err;
+
+	AFCM = (AFCM_H << 8) + AFCM_L;
+
+	if (AFCM > 2048)
+		afcm = AFCM - 4096;
+	else
+		afcm = AFCM;
+	afcerr = afcm * state->master_clk / 8192;
+
+	return afcerr;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int dagcm_val_get(struct mb86a16_state *state)
+{
+	int DAGCM;
+	unsigned char DAGCM_H, DAGCM_L;
+
+	if (mb86a16_read(state, 0x45, &DAGCM_L) != 2)
+		goto err;
+	if (mb86a16_read(state, 0x46, &DAGCM_H) != 2)
+		goto err;
+
+	DAGCM = (DAGCM_H << 8) + DAGCM_L;
+
+	return DAGCM;
+
+err:
+	dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+	return -EREMOTEIO;
+}
+
+static int mb86a16_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+	u8 stat, stat2;
+	struct mb86a16_state *state = fe->demodulator_priv;
+
+	*status = 0;
+
+	if (mb86a16_read(state, MB86A16_SIG1, &stat) != 2)
+		goto err;
+	if (mb86a16_read(state, MB86A16_SIG2, &stat2) != 2)
+		goto err;