[media] af9013: rewrite whole driver

Rewrite whole af9013 demod driver in order to decrease I2C I/O.

We need to decrease I2C load since AF9015 (I2C adapter / USB-bridge used)
seems to have some problems under heavy I2C traffic.

Signed-off-by: Antti Palosaari <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/dvb/dvb-usb/af9015.c

···
 
 static struct af9013_config af9015_af9013_config[] = {
 	{
-		.demod_address = AF9015_I2C_DEMOD,
-		.output_mode = AF9013_OUTPUT_MODE_USB,
+		.i2c_addr = AF9015_I2C_DEMOD,
+		.ts_mode = AF9013_TS_USB,
 		.api_version = { 0, 1, 9, 0 },
 		.gpio[0] = AF9013_GPIO_HI,
 		.gpio[3] = AF9013_GPIO_TUNER_ON,
 
 	}, {
-		.output_mode = AF9013_OUTPUT_MODE_SERIAL,
+		.ts_mode = AF9013_TS_SERIAL,
 		.api_version = { 0, 1, 9, 0 },
 		.gpio[0] = AF9013_GPIO_TUNER_ON,
 		.gpio[1] = AF9013_GPIO_LO,
···
 {
 	struct req_t req = {WRITE_I2C, addr, reg, 1, 1, 1, &val};
 
-	if (addr == af9015_af9013_config[0].demod_address ||
-	    addr == af9015_af9013_config[1].demod_address)
+	if (addr == af9015_af9013_config[0].i2c_addr ||
+	    addr == af9015_af9013_config[1].i2c_addr)
 		req.addr_len = 3;
 
 	return af9015_ctrl_msg(d, &req);
···
 {
 	struct req_t req = {READ_I2C, addr, reg, 0, 1, 1, val};
 
-	if (addr == af9015_af9013_config[0].demod_address ||
-	    addr == af9015_af9013_config[1].demod_address)
+	if (addr == af9015_af9013_config[0].i2c_addr ||
+	    addr == af9015_af9013_config[1].i2c_addr)
 		req.addr_len = 3;
 
 	return af9015_ctrl_msg(d, &req);
···
 		return -EAGAIN;
 
 	while (i < num) {
-		if (msg[i].addr == af9015_af9013_config[0].demod_address ||
-		    msg[i].addr == af9015_af9013_config[1].demod_address) {
+		if (msg[i].addr == af9015_af9013_config[0].i2c_addr ||
+		    msg[i].addr == af9015_af9013_config[1].i2c_addr) {
 			addr = msg[i].buf[0] << 8;
 			addr += msg[i].buf[1];
 			mbox = msg[i].buf[2];
···
 				ret = -EOPNOTSUPP;
 				goto error;
 			}
-			if (msg[i].addr ==
-				af9015_af9013_config[0].demod_address)
+			if (msg[i].addr == af9015_af9013_config[0].i2c_addr)
 				req.cmd = READ_MEMORY;
 			else
 				req.cmd = READ_I2C;
···
 				goto error;
 			}
 			if (msg[i].addr ==
-				af9015_af9013_config[0].demod_address) {
+				af9015_af9013_config[0].i2c_addr) {
 				ret = -EINVAL;
 				goto error;
 			}
···
 				ret = -EOPNOTSUPP;
 				goto error;
 			}
-			if (msg[i].addr ==
-				af9015_af9013_config[0].demod_address)
+			if (msg[i].addr == af9015_af9013_config[0].i2c_addr)
 				req.cmd = WRITE_MEMORY;
 			else
 				req.cmd = WRITE_I2C;
···
 	msleep(100);
 
 	ret = af9015_read_reg_i2c(d,
-		af9015_af9013_config[1].demod_address, 0x98be, &val);
+		af9015_af9013_config[1].i2c_addr, 0x98be, &val);
 	if (ret)
 		goto error;
 	else
···
 		goto error;
 
 	/* request boot firmware */
-	ret = af9015_write_reg_i2c(d, af9015_af9013_config[1].demod_address,
+	ret = af9015_write_reg_i2c(d, af9015_af9013_config[1].i2c_addr,
 		0xe205, 1);
 	deb_info("%s: firmware boot cmd status:%d\n", __func__, ret);
 	if (ret)
···
 
 		/* check firmware status */
 		ret = af9015_read_reg_i2c(d,
-			af9015_af9013_config[1].demod_address, 0x98be, &val);
+			af9015_af9013_config[1].i2c_addr, 0x98be, &val);
 		deb_info("%s: firmware status cmd status:%d fw status:%02x\n",
 			__func__, ret, val);
 		if (ret)
···
 	if (ret)
 		goto error;
 
-	deb_info("%s: IR mode:%d\n", __func__, val);
+	deb_info("%s: IR mode=%d\n", __func__, val);
 	for (i = 0; i < af9015_properties_count; i++) {
 		if (val == AF9015_IR_MODE_DISABLED)
 			af9015_properties[i].rc.core.rc_codes = NULL;
···
 	if (ret)
 		goto error;
 	af9015_config.dual_mode = val;
-	deb_info("%s: TS mode:%d\n", __func__, af9015_config.dual_mode);
+	deb_info("%s: TS mode=%d\n", __func__, af9015_config.dual_mode);
 
 	/* Set adapter0 buffer size according to USB port speed, adapter1 buffer
 	   size can be static because it is enabled only USB2.0 */
···
 		ret = af9015_rw_udev(udev, &req);
 		if (ret)
 			goto error;
-		af9015_af9013_config[1].demod_address = val;
+		af9015_af9013_config[1].i2c_addr = val;
 
 		/* enable 2nd adapter */
 		for (i = 0; i < af9015_properties_count; i++)
···
 			goto error;
 		switch (val) {
 		case 0:
-			af9015_af9013_config[i].adc_clock = 28800;
+			af9015_af9013_config[i].clock = 28800000;
 			break;
 		case 1:
-			af9015_af9013_config[i].adc_clock = 20480;
+			af9015_af9013_config[i].clock = 20480000;
 			break;
 		case 2:
-			af9015_af9013_config[i].adc_clock = 28000;
+			af9015_af9013_config[i].clock = 28000000;
 			break;
 		case 3:
-			af9015_af9013_config[i].adc_clock = 25000;
+			af9015_af9013_config[i].clock = 25000000;
 			break;
 		};
-		deb_info("%s: [%d] xtal:%d set adc_clock:%d\n", __func__, i,
-			val, af9015_af9013_config[i].adc_clock);
+		deb_info("%s: [%d] xtal=%d set clock=%d\n", __func__, i,
+			val, af9015_af9013_config[i].clock);
 
-		/* tuner IF */
+		/* IF frequency */
 		req.addr = AF9015_EEPROM_IF1H + offset;
 		ret = af9015_rw_udev(udev, &req);
 		if (ret)
 			goto error;
-		af9015_af9013_config[i].tuner_if = val << 8;
+
+		af9015_af9013_config[i].if_frequency = val << 8;
+
 		req.addr = AF9015_EEPROM_IF1L + offset;
 		ret = af9015_rw_udev(udev, &req);
 		if (ret)
 			goto error;
-		af9015_af9013_config[i].tuner_if += val;
-		deb_info("%s: [%d] IF1:%d\n", __func__, i,
-			af9015_af9013_config[0].tuner_if);
+
+		af9015_af9013_config[i].if_frequency += val;
+		af9015_af9013_config[i].if_frequency *= 1000;
+		deb_info("%s: [%d] IF frequency=%d\n", __func__, i,
+			af9015_af9013_config[0].if_frequency);
 
 		/* MT2060 IF1 */
 		req.addr = AF9015_EEPROM_MT2060_IF1H  + offset;
···
 		if (ret)
 			goto error;
 		af9015_config.mt2060_if1[i] += val;
-		deb_info("%s: [%d] MT2060 IF1:%d\n", __func__, i,
+		deb_info("%s: [%d] MT2060 IF1=%d\n", __func__, i,
 			af9015_config.mt2060_if1[i]);
 
 		/* tuner */
···
 		case AF9013_TUNER_TDA18271:
 		case AF9013_TUNER_QT1010A:
 		case AF9013_TUNER_TDA18218:
-			af9015_af9013_config[i].rf_spec_inv = 1;
+			af9015_af9013_config[i].spec_inv = 1;
 			break;
 		case AF9013_TUNER_MXL5003D:
 		case AF9013_TUNER_MXL5005D:
 		case AF9013_TUNER_MXL5005R:
 		case AF9013_TUNER_MXL5007T:
-			af9015_af9013_config[i].rf_spec_inv = 0;
+			af9015_af9013_config[i].spec_inv = 0;
 			break;
 		case AF9013_TUNER_MC44S803:
 			af9015_af9013_config[i].gpio[1] = AF9013_GPIO_LO;
-			af9015_af9013_config[i].rf_spec_inv = 1;
+			af9015_af9013_config[i].spec_inv = 1;
 			break;
 		default:
-			warn("tuner id:%d not supported, please report!", val);
+			warn("tuner id=%d not supported, please report!", val);
 			return -ENODEV;
 		};
 
 		af9015_af9013_config[i].tuner = val;
-		deb_info("%s: [%d] tuner id:%d\n", __func__, i, val);
+		deb_info("%s: [%d] tuner id=%d\n", __func__, i, val);
 	}
 
 error:
 	if (ret)
-		err("eeprom read failed:%d", ret);
+		err("eeprom read failed=%d", ret);
 
 	/* AverMedia AVerTV Volar Black HD (A850) device have bad EEPROM
 	   content :-( Override some wrong values here. Ditto for the
···
 			af9015_properties[i].num_adapters = 1;
 
 		/* set correct IF */
-		af9015_af9013_config[0].tuner_if = 4570;
+		af9015_af9013_config[0].if_frequency = 4570000;
 	}
 
 	return ret;
···
 	if (mutex_lock_interruptible(&adap->dev->usb_mutex))
 		return -EAGAIN;
 
-	ret = priv->init[adap->id](fe);
+	ret = priv->sleep[adap->id](fe);
 
 	mutex_unlock(&adap->dev->usb_mutex);
 

drivers/media/dvb/frontends/af9013.c

···
  * Afatech AF9013 demodulator driver
  *
  * Copyright (C) 2007 Antti Palosaari <[e-mail]>
+ * Copyright (C) 2011 Antti Palosaari <[e-mail]>
  *
  * Thanks to Afatech who kindly provided information.
  *
···
  *
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/firmware.h>
-
-#include "dvb_frontend.h"
 #include "af9013_priv.h"
-#include "af9013.h"
 
 int af9013_debug;
+module_param_named(debug, af9013_debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
 
 struct af9013_state {
 	struct i2c_adapter *i2c;
-	struct dvb_frontend frontend;
-
+	struct dvb_frontend fe;
 	struct af9013_config config;
 
 	/* tuner/demod RF and IF AGC limits used for signal strength calc */
···
 	u32 ber;
 	u32 ucblocks;
 	u16 snr;
-	u32 frequency;
-	unsigned long next_statistics_check;
+	u32 bandwidth_hz;
+	fe_status_t fe_status;
+	unsigned long set_frontend_jiffies;
+	unsigned long read_status_jiffies;
+	bool first_tune;
+	bool i2c_gate_state;
+	unsigned int statistics_step:3;
+	struct delayed_work statistics_work;
 };
 
-static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
-
-static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg,
-	u8 *val, u8 len)
+/* write multiple registers */
+static int af9013_wr_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg,
+	const u8 *val, int len)
 {
+	int ret;
 	u8 buf[3+len];
-	struct i2c_msg msg = {
-		.addr = state->config.demod_address,
-		.flags = 0,
-		.len = sizeof(buf),
-		.buf = buf };
+	struct i2c_msg msg[1] = {
+		{
+			.addr = priv->config.i2c_addr,
+			.flags = 0,
+			.len = sizeof(buf),
+			.buf = buf,
+		}
+	};
 
-	buf[0] = reg >> 8;
-	buf[1] = reg & 0xff;
+	buf[0] = (reg >> 8) & 0xff;
+	buf[1] = (reg >> 0) & 0xff;
 	buf[2] = mbox;
 	memcpy(&buf[3], val, len);
 
-	if (i2c_transfer(state->i2c, &msg, 1) != 1) {
-		warn("I2C write failed reg:%04x len:%d", reg, len);
-		return -EREMOTEIO;
+	ret = i2c_transfer(priv->i2c, msg, 1);
+	if (ret == 1) {
+		ret = 0;
+	} else {
+		warn("i2c wr failed=%d reg=%04x len=%d", ret, reg, len);
+		ret = -EREMOTEIO;
 	}
+	return ret;
+}
+
+/* read multiple registers */
+static int af9013_rd_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg,
+	u8 *val, int len)
+{
+	int ret;
+	u8 buf[3];
+	struct i2c_msg msg[2] = {
+		{
+			.addr = priv->config.i2c_addr,
+			.flags = 0,
+			.len = 3,
+			.buf = buf,
+		}, {
+			.addr = priv->config.i2c_addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = val,
+		}
+	};
+
+	buf[0] = (reg >> 8) & 0xff;
+	buf[1] = (reg >> 0) & 0xff;
+	buf[2] = mbox;
+
+	ret = i2c_transfer(priv->i2c, msg, 2);
+	if (ret == 2) {
+		ret = 0;
+	} else {
+		warn("i2c rd failed=%d reg=%04x len=%d", ret, reg, len);
+		ret = -EREMOTEIO;
+	}
+	return ret;
+}
+
+/* write multiple registers */
+static int af9013_wr_regs(struct af9013_state *priv, u16 reg, const u8 *val,
+	int len)
+{
+	int ret, i;
+	u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(1 << 0);
+
+	if ((priv->config.ts_mode == AF9013_TS_USB) &
+		((reg & 0xff00) != 0xff00) & ((reg & 0xff00) != 0xae00)) {
+		mbox |= ((len - 1) << 2);
+		ret = af9013_wr_regs_i2c(priv, mbox, reg, val, len);
+	} else {
+		for (i = 0; i < len; i++) {
+			ret = af9013_wr_regs_i2c(priv, mbox, reg+i, val+i, 1);
+			if (ret)
+				goto err;
+		}
+	}
+
+err:
 	return 0;
 }
 
-static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val,
-	u8 len)
+/* read multiple registers */
+static int af9013_rd_regs(struct af9013_state *priv, u16 reg, u8 *val, int len)
 {
-	u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7);
-	return af9013_write_regs(state, mbox, reg, val, len);
+	int ret, i;
+	u8 mbox = (0 << 7)|(0 << 6)|(1 << 1)|(0 << 0);
+
+	if ((priv->config.ts_mode == AF9013_TS_USB) &
+		((reg & 0xff00) != 0xff00) & ((reg & 0xff00) != 0xae00)) {
+		mbox |= ((len - 1) << 2);
+		ret = af9013_rd_regs_i2c(priv, mbox, reg, val, len);
+	} else {
+		for (i = 0; i < len; i++) {
+			ret = af9013_rd_regs_i2c(priv, mbox, reg+i, val+i, 1);
+			if (ret)
+				goto err;
+		}
+	}
+
+err:
+	return 0;
+}
+
+/* write single register */
+static int af9013_wr_reg(struct af9013_state *priv, u16 reg, u8 val)
+{
+	return af9013_wr_regs(priv, reg, &val, 1);
+}
+
+/* read single register */
+static int af9013_rd_reg(struct af9013_state *priv, u16 reg, u8 *val)
+{
+	return af9013_rd_regs(priv, reg, val, 1);
 }
 
 static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val,
 	u8 len)
 {
-	u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7);
-	return af9013_write_regs(state, mbox, reg, val, len);
+	u8 mbox = (1 << 7)|(1 << 6)|((len - 1) << 2)|(1 << 1)|(1 << 0);
+	return af9013_wr_regs_i2c(state, mbox, reg, val, len);
 }
 
-/* write single register */
-static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val)
-{
-	return af9013_write_ofdm_regs(state, reg, &val, 1);
-}
-
-/* read single register */
-static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val)
-{
-	u8 obuf[3] = { reg >> 8, reg & 0xff, 0 };
-	u8 ibuf[1];
-	struct i2c_msg msg[2] = {
-		{
-			.addr = state->config.demod_address,
-			.flags = 0,
-			.len = sizeof(obuf),
-			.buf = obuf
-		}, {
-			.addr = state->config.demod_address,
-			.flags = I2C_M_RD,
-			.len = sizeof(ibuf),
-			.buf = ibuf
-		}
-	};
-
-	if (i2c_transfer(state->i2c, msg, 2) != 2) {
-		warn("I2C read failed reg:%04x", reg);
-		return -EREMOTEIO;
-	}
-	*val = ibuf[0];
-	return 0;
-}
-
-static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
-	u8 len, u8 val)
+static int af9013_wr_reg_bits(struct af9013_state *state, u16 reg, int pos,
+	int len, u8 val)
 {
 	int ret;
 	u8 tmp, mask;
 
-	ret = af9013_read_reg(state, reg, &tmp);
-	if (ret)
-		return ret;
+	/* no need for read if whole reg is written */
+	if (len != 8) {
+		ret = af9013_rd_reg(state, reg, &tmp);
+		if (ret)
+			return ret;
 
-	mask = regmask[len - 1] << pos;
-	tmp = (tmp & ~mask) | ((val << pos) & mask);
+		mask = (0xff >> (8 - len)) << pos;
+		val <<= pos;
+		tmp &= ~mask;
+		val |= tmp;
+	}
 
-	return af9013_write_reg(state, reg, tmp);
+	return af9013_wr_reg(state, reg, val);
 }
 
-static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
-	u8 len, u8 *val)
+static int af9013_rd_reg_bits(struct af9013_state *state, u16 reg, int pos,
+	int len, u8 *val)
 {
 	int ret;
 	u8 tmp;
 
-	ret = af9013_read_reg(state, reg, &tmp);
+	ret = af9013_rd_reg(state, reg, &tmp);
 	if (ret)
 		return ret;
-	*val = (tmp >> pos) & regmask[len - 1];
+
+	*val = (tmp >> pos);
+	*val &= (0xff >> (8 - len));
+
 	return 0;
 }
 
···
 	int ret;
 	u8 pos;
 	u16 addr;
-	deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval);
 
-/* GPIO0 & GPIO1 0xd735
-   GPIO2 & GPIO3 0xd736 */
+	dbg("%s: gpio=%d gpioval=%02x", __func__, gpio, gpioval);
+
+	/*
+	 * GPIO0 & GPIO1 0xd735
+	 * GPIO2 & GPIO3 0xd736
+	 */
 
 	switch (gpio) {
 	case 0:
···
 	default:
 		err("invalid gpio:%d\n", gpio);
 		ret = -EINVAL;
-		goto error;
+		goto err;
 	};
 
 	switch (gpio) {
···
 		break;
 	};
 
-	ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval);
+	ret = af9013_wr_reg_bits(state, addr, pos, 4, gpioval);
+	if (ret)
+		goto err;
 
-error:
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
 }
 
 static u32 af913_div(u32 a, u32 b, u32 x)
 {
 	u32 r = 0, c = 0, i;
-	deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x);
+
+	dbg("%s: a=%d b=%d x=%d", __func__, a, b, x);
 
 	if (a > b) {
 		c = a / b;
···
 	}
 	r = (c << (u32)x) + r;
 
-	deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r);
+	dbg("%s: a=%d b=%d x=%d r=%x", __func__, a, b, x, r);
 	return r;
 }
 
-static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
+static int af9013_power_ctrl(struct af9013_state *state, u8 onoff)
 {
-	int ret, i, j, found;
-	deb_info("%s: adc_clock:%d bw:%d\n", __func__,
-		state->config.adc_clock, bw);
+	int ret, i;
+	u8 tmp;
 
-	/* lookup coeff from table */
-	for (i = 0, found = 0; i < ARRAY_SIZE(coeff_table); i++) {
-		if (coeff_table[i].adc_clock == state->config.adc_clock &&
-			coeff_table[i].bw == bw) {
-			found = 1;
-			break;
-		}
-	}
+	dbg("%s: onoff=%d", __func__, onoff);
 
-	if (!found) {
-		err("invalid bw or clock");
-		ret = -EINVAL;
-		goto error;
-	}
+	/* enable reset */
+	ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 1);
+	if (ret)
+		goto err;
 
-	deb_info("%s: coeff: ", __func__);
-	debug_dump(coeff_table[i].val, sizeof(coeff_table[i].val), deb_info);
+	/* start reset mechanism */
+	ret = af9013_wr_reg(state, 0xaeff, 1);
+	if (ret)
+		goto err;
 
-	/* program */
-	for (j = 0; j < sizeof(coeff_table[i].val); j++) {
-		ret = af9013_write_reg(state, 0xae00 + j,
-			coeff_table[i].val[j]);
+	/* wait reset performs */
+	for (i = 0; i < 150; i++) {
+		ret = af9013_rd_reg_bits(state, 0xd417, 1, 1, &tmp);
 		if (ret)
-			break;
+			goto err;
+
+		if (tmp)
+			break; /* reset done */
+
+		usleep_range(5000, 25000);
 	}
 
-error:
+	if (!tmp)
+		return -ETIMEDOUT;
+
+	if (onoff) {
+		/* clear reset */
+		ret = af9013_wr_reg_bits(state, 0xd417, 1, 1, 0);
+		if (ret)
+			goto err;
+
+		/* disable reset */
+		ret = af9013_wr_reg_bits(state, 0xd417, 4, 1, 0);
+
+		/* power on */
+		ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 0);
+	} else {
+		/* power off */
+		ret = af9013_wr_reg_bits(state, 0xd73a, 3, 1, 1);
+	}
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
 }
 
-static int af9013_set_adc_ctrl(struct af9013_state *state)
+static int af9013_statistics_ber_unc_start(struct dvb_frontend *fe)
 {
+	struct af9013_state *state = fe->demodulator_priv;
 	int ret;
-	u8 buf[3], tmp, i;
-	u32 adc_cw;
 
-	deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock);
+	dbg("%s", __func__);
 
-	/* adc frequency type */
-	switch (state->config.adc_clock) {
-	case 28800: /* 28.800 MHz */
-		tmp = 0;
+	/* reset and start BER counter */
+	ret = af9013_wr_reg_bits(state, 0xd391, 4, 1, 1);
+	if (ret)
+		goto err;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static int af9013_statistics_ber_unc_result(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	int ret;
+	u8 buf[5];
+
+	dbg("%s", __func__);
+
+	/* check if error bit count is ready */
+	ret = af9013_rd_reg_bits(state, 0xd391, 4, 1, &buf[0]);
+	if (ret)
+		goto err;
+
+	if (!buf[0]) {
+		dbg("%s: not ready", __func__);
+		return 0;
+	}
+
+	ret = af9013_rd_regs(state, 0xd387, buf, 5);
+	if (ret)
+		goto err;
+
+	state->ber = (buf[2] << 16) | (buf[1] << 8) | buf[0];
+	state->ucblocks += (buf[4] << 8) | buf[3];
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static int af9013_statistics_snr_start(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	int ret;
+
+	dbg("%s", __func__);
+
+	/* start SNR meas */
+	ret = af9013_wr_reg_bits(state, 0xd2e1, 3, 1, 1);
+	if (ret)
+		goto err;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static int af9013_statistics_snr_result(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	int ret, i, len;
+	u8 buf[3], tmp;
+	u32 snr_val;
+	const struct af9013_snr *uninitialized_var(snr_lut);
+
+	dbg("%s", __func__);
+
+	/* check if SNR ready */
+	ret = af9013_rd_reg_bits(state, 0xd2e1, 3, 1, &tmp);
+	if (ret)
+		goto err;
+
+	if (!tmp) {
+		dbg("%s: not ready", __func__);
+		return 0;
+	}
+
+	/* read value */
+	ret = af9013_rd_regs(state, 0xd2e3, buf, 3);
+	if (ret)
+		goto err;
+
+	snr_val = (buf[2] << 16) | (buf[1] << 8) | buf[0];
+
+	/* read current modulation */
+	ret = af9013_rd_reg(state, 0xd3c1, &tmp);
+	if (ret)
+		goto err;
+
+	switch ((tmp >> 6) & 3) {
+	case 0:
+		len = ARRAY_SIZE(qpsk_snr_lut);
+		snr_lut = qpsk_snr_lut;
 		break;
-	case 20480: /* 20.480 MHz */
-		tmp = 1;
+	case 1:
+		len = ARRAY_SIZE(qam16_snr_lut);
+		snr_lut = qam16_snr_lut;
 		break;
-	case 28000: /* 28.000 MHz */
-		tmp = 2;
-		break;
-	case 25000: /* 25.000 MHz */
-		tmp = 3;
+	case 2:
+		len = ARRAY_SIZE(qam64_snr_lut);
+		snr_lut = qam64_snr_lut;
 		break;
 	default:
-		err("invalid xtal");
-		return -EINVAL;
+		goto err;
+		break;
 	}
 
-	adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul);
+	for (i = 0; i < len; i++) {
+		tmp = snr_lut[i].snr;
 
-	buf[0] = (u8) ((adc_cw & 0x000000ff));
-	buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8);
-	buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16);
-
-	deb_info("%s: adc_cw:", __func__);
-	debug_dump(buf, sizeof(buf), deb_info);
-
-	/* program */
-	for (i = 0; i < sizeof(buf); i++) {
-		ret = af9013_write_reg(state, 0xd180 + i, buf[i]);
-		if (ret)
-			goto error;
+		if (snr_val < snr_lut[i].val)
+			break;
 	}
-	ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp);
-error:
+	state->snr = tmp * 10; /* dB/10 */
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
 }
 
-static int af9013_set_freq_ctrl(struct af9013_state *state,
-	struct dvb_frontend *fe)
+static int af9013_statistics_signal_strength(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	int ret = 0;
+	u8 buf[2], rf_gain, if_gain;
+	int signal_strength;
+
+	dbg("%s", __func__);
+
+	if (!state->signal_strength_en)
+		return 0;
+
+	ret = af9013_rd_regs(state, 0xd07c, buf, 2);
+	if (ret)
+		goto err;
+
+	rf_gain = buf[0];
+	if_gain = buf[1];
+
+	signal_strength = (0xffff / \
+		(9 * (state->rf_50 + state->if_50) - \
+		11 * (state->rf_80 + state->if_80))) * \
+		(10 * (rf_gain + if_gain) - \
+		11 * (state->rf_80 + state->if_80));
+	if (signal_strength < 0)
+		signal_strength = 0;
+	else if (signal_strength > 0xffff)
+		signal_strength = 0xffff;
+
+	state->signal_strength = signal_strength;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static void af9013_statistics_work(struct work_struct *work)
 {
 	int ret;
-	u16 addr;
-	u8 buf[3], i, j;
-	u32 adc_freq, freq_cw;
-	s8 bfs_spec_inv;
-	int if_sample_freq;
+	struct af9013_state *state = container_of(work,
+		struct af9013_state, statistics_work.work);
+	unsigned int next_msec;
 
-	for (j = 0; j < 3; j++) {
-		if (j == 0) {
-			addr = 0xd140; /* fcw normal */
-			bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
-		} else if (j == 1) {
-			addr = 0x9be7; /* fcw dummy ram */
-			bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
-		} else {
-			addr = 0x9bea; /* fcw inverted */
-			bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1;
+	/* update only signal strength when demod is not locked */
+	if (!(state->fe_status & FE_HAS_LOCK)) {
+		state->statistics_step = 0;
+		state->ber = 0;
+		state->snr = 0;
+	}
+
+	switch (state->statistics_step) {
+	default:
+		state->statistics_step = 0;
+	case 0:
+		ret = af9013_statistics_signal_strength(&state->fe);
+		state->statistics_step++;
+		next_msec = 300;
+		break;
+	case 1:
+		ret = af9013_statistics_snr_start(&state->fe);
+		state->statistics_step++;
+		next_msec = 200;
+		break;
+	case 2:
+		ret = af9013_statistics_ber_unc_start(&state->fe);
+		state->statistics_step++;
+		next_msec = 1000;
+		break;
+	case 3:
+		ret = af9013_statistics_snr_result(&state->fe);
+		state->statistics_step++;
+		next_msec = 400;
+		break;
+	case 4:
+		ret = af9013_statistics_ber_unc_result(&state->fe);
+		state->statistics_step++;
+		next_msec = 100;
+		break;
+	}
+
+	schedule_delayed_work(&state->statistics_work,
+		msecs_to_jiffies(next_msec));
+
+	return;
+}
+
+static int af9013_get_tune_settings(struct dvb_frontend *fe,
+	struct dvb_frontend_tune_settings *fesettings)
+{
+	fesettings->min_delay_ms = 800;
+	fesettings->step_size = 0;
+	fesettings->max_drift = 0;
+
+	return 0;
+}
+
+static int af9013_set_frontend(struct dvb_frontend *fe,
+	struct dvb_frontend_parameters *p)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int ret, i, sampling_freq;
+	bool auto_mode, spec_inv;
+	u8 buf[6];
+	u32 if_frequency, freq_cw;
+
+	dbg("%s: frequency=%d bandwidth_hz=%d", __func__,
+		c->frequency, c->bandwidth_hz);
+
+	/* program tuner */
+	if (fe->ops.tuner_ops.set_params)
+		fe->ops.tuner_ops.set_params(fe, p);
+
+	/* program CFOE coefficients */
+	if (c->bandwidth_hz != state->bandwidth_hz) {
+		for (i = 0; i < ARRAY_SIZE(coeff_lut); i++) {
+			if (coeff_lut[i].clock == state->config.clock &&
+				coeff_lut[i].bandwidth_hz == c->bandwidth_hz) {
+				break;
+			}
 		}
 
-		adc_freq = state->config.adc_clock * 1000;
+		ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
+			sizeof(coeff_lut[i].val));
+	}
 
+	/* program frequency control */
+	if (c->bandwidth_hz != state->bandwidth_hz || state->first_tune) {
 		/* get used IF frequency */
 		if (fe->ops.tuner_ops.get_if_frequency)
-			fe->ops.tuner_ops.get_if_frequency(fe, &if_sample_freq);
+			fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
 		else
-			if_sample_freq = state->config.tuner_if * 1000;
+			if_frequency = state->config.if_frequency;
 
-		while (if_sample_freq > (adc_freq / 2))
-			if_sample_freq = if_sample_freq - adc_freq;
+		sampling_freq = if_frequency;
 
-		if (if_sample_freq >= 0)
-			bfs_spec_inv = bfs_spec_inv * (-1);
-		else
-			if_sample_freq = if_sample_freq * (-1);
+		while (sampling_freq > (state->config.clock / 2))
+			sampling_freq -= state->config.clock;
 
-		freq_cw = af913_div(if_sample_freq, adc_freq, 23ul);
-
-		if (bfs_spec_inv == -1)
-			freq_cw = 0x00800000 - freq_cw;
-
-		buf[0] = (u8) ((freq_cw & 0x000000ff));
-		buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8);
-		buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16);
-
-
-		deb_info("%s: freq_cw:", __func__);
-		debug_dump(buf, sizeof(buf), deb_info);
-
-		/* program */
-		for (i = 0; i < sizeof(buf); i++) {
-			ret = af9013_write_reg(state, addr++, buf[i]);
-			if (ret)
-				goto error;
+		if (sampling_freq < 0) {
+			sampling_freq *= -1;
+			spec_inv = state->config.spec_inv;
+		} else {
+			spec_inv = !state->config.spec_inv;
 		}
+
+		freq_cw = af913_div(sampling_freq, state->config.clock, 23);
+
+		if (spec_inv)
+			freq_cw = 0x800000 - freq_cw;
+
+		buf[0] = (freq_cw >>  0) & 0xff;
+		buf[1] = (freq_cw >>  8) & 0xff;
+		buf[2] = (freq_cw >> 16) & 0x7f;
+
+		freq_cw = 0x800000 - freq_cw;
+
+		buf[3] = (freq_cw >>  0) & 0xff;
+		buf[4] = (freq_cw >>  8) & 0xff;
+		buf[5] = (freq_cw >> 16) & 0x7f;
+
+		ret = af9013_wr_regs(state, 0xd140, buf, 3);
+		if (ret)
+			goto err;
+
+		ret = af9013_wr_regs(state, 0x9be7, buf, 6);
+		if (ret)
+			goto err;
 	}
-error:
-	return ret;
-}
 
-static int af9013_set_ofdm_params(struct af9013_state *state,
-	struct dvb_ofdm_parameters *params, u8 *auto_mode)
-{
-	int ret;
-	u8 i, buf[3] = {0, 0, 0};
-	*auto_mode = 0; /* set if parameters are requested to auto set */
+	/* clear TPS lock flag */
+	ret = af9013_wr_reg_bits(state, 0xd330, 3, 1, 1);
+	if (ret)
+		goto err;
 
-	/* Try auto-detect transmission parameters in case of AUTO requested or
-	   garbage parameters given by application for compatibility.
-	   MPlayer seems to provide garbage parameters currently. */
+	/* clear MPEG2 lock flag */
+	ret = af9013_wr_reg_bits(state, 0xd507, 6, 1, 0);
+	if (ret)
+		goto err;
 
-	switch (params->transmission_mode) {
+	/* empty channel function */
+	ret = af9013_wr_reg_bits(state, 0x9bfe, 0, 1, 0);
+	if (ret)
+		goto err;
+
+	/* empty DVB-T channel function */
+	ret = af9013_wr_reg_bits(state, 0x9bc2, 0, 1, 0);
+	if (ret)
+		goto err;
+
+	/* transmission parameters */
+	auto_mode = false;
+	memset(buf, 0, 3);
+
+	switch (c->transmission_mode) {
 	case TRANSMISSION_MODE_AUTO:
-		*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case TRANSMISSION_MODE_2K:
 		break;
 	case TRANSMISSION_MODE_8K:
 		buf[0] |= (1 << 0);
 		break;
 	default:
-		deb_info("%s: invalid transmission_mode\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid transmission_mode", __func__);
+		auto_mode = 1;
 	}
 
-	switch (params->guard_interval) {
+	switch (c->guard_interval) {
 	case GUARD_INTERVAL_AUTO:
-		*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case GUARD_INTERVAL_1_32:
 		break;
 	case GUARD_INTERVAL_1_16:
···
 		buf[0] |= (3 << 2);
 		break;
 	default:
-		deb_info("%s: invalid guard_interval\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid guard_interval", __func__);
+		auto_mode = 1;
 	}
 
-	switch (params->hierarchy_information) {
+	switch (c->hierarchy) {
 	case HIERARCHY_AUTO:
-		*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case HIERARCHY_NONE:
 		break;
 	case HIERARCHY_1:
···
 		buf[0] |= (3 << 4);
 		break;
 	default:
-		deb_info("%s: invalid hierarchy_information\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid hierarchy", __func__);
+		auto_mode = 1;
 	};
 
-	switch (params->constellation) {
+	switch (c->modulation) {
 	case QAM_AUTO:
-		*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case QPSK:
 		break;
 	case QAM_16:
···
 		buf[1] |= (2 << 6);
 		break;
 	default:
-		deb_info("%s: invalid constellation\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid modulation", __func__);
+		auto_mode = 1;
 	}
 
 	/* Use HP. How and which case we can switch to LP? */
 	buf[1] |= (1 << 4);
 
-	switch (params->code_rate_HP) {
+	switch (c->code_rate_HP) {
 	case FEC_AUTO:
-		*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case FEC_1_2:
 		break;
 	case FEC_2_3:
···
 		buf[2] |= (4 << 0);
 		break;
 	default:
-		deb_info("%s: invalid code_rate_HP\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid code_rate_HP", __func__);
+		auto_mode = 1;
 	}
 
-	switch (params->code_rate_LP) {
+	switch (c->code_rate_LP) {
 	case FEC_AUTO:
-	/* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO
-	   by dvb_frontend.c for compatibility */
-		if (params->hierarchy_information != HIERARCHY_NONE)
-			*auto_mode = 1;
+		auto_mode = 1;
+		break;
 	case FEC_1_2:
 		break;
 	case FEC_2_3:
···
 		buf[2] |= (4 << 3);
 		break;
 	case FEC_NONE:
-		if (params->hierarchy_information == HIERARCHY_AUTO)
-			break;
+		break;
 	default:
-		deb_info("%s: invalid code_rate_LP\n", __func__);
-		*auto_mode = 1;
+		dbg("%s: invalid code_rate_LP", __func__);
+		auto_mode = 1;
 	}
 
-	switch (params->bandwidth) {
-	case BANDWIDTH_6_MHZ:
+	switch (c->bandwidth_hz) {
+	case 6000000:
 		break;
-	case BANDWIDTH_7_MHZ:
+	case 7000000:
 		buf[1] |= (1 << 2);
 		break;
-	case BANDWIDTH_8_MHZ:
+	case 8000000:
 		buf[1] |= (2 << 2);
 		break;
 	default:
-		deb_info("%s: invalid bandwidth\n", __func__);
-		buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */
+		dbg("%s: invalid bandwidth_hz", __func__);
+		ret = -EINVAL;
+		goto err;
 	}
 
-	/* program */
-	for (i = 0; i < sizeof(buf); i++) {
-		ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]);
-		if (ret)
-			break;
-	}
-
-	return ret;
-}
-
-static int af9013_reset(struct af9013_state *state, u8 sleep)
-{
-	int ret;
-	u8 tmp, i;
-	deb_info("%s\n", __func__);
-
-	/* enable OFDM reset */
-	ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1);
+	ret = af9013_wr_regs(state, 0xd3c0, buf, 3);
 	if (ret)
-		goto error;
-
-	/* start reset mechanism */
-	ret = af9013_write_reg(state, 0xaeff, 1);
-	if (ret)
-		goto error;
-
-	/* reset is done when bit 1 is set */
-	for (i = 0; i < 150; i++) {
-		ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp);
-		if (ret)
-			goto error;
-		if (tmp)
-			break; /* reset done */
-		msleep(10);
-	}
-	if (!tmp)
-		return -ETIMEDOUT;
-
-	/* don't clear reset when going to sleep */
-	if (!sleep) {
-		/* clear OFDM reset */
-		ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
-		if (ret)
-			goto error;
-
-		/* disable OFDM reset */
-		ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
-	}
-error:
-	return ret;
-}
-
-static int af9013_power_ctrl(struct af9013_state *state, u8 onoff)
-{
-	int ret;
-	deb_info("%s: onoff:%d\n", __func__, onoff);
-
-	if (onoff) {
-		/* power on */
-		ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0);
-		if (ret)
-			goto error;
-		ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
-		if (ret)
-			goto error;
-		ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
-	} else {
-		/* power off */
-		ret = af9013_reset(state, 1);
-		if (ret)
-			goto error;
-		ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1);
-	}
-error:
-	return ret;
-}
-
-static int af9013_lock_led(struct af9013_state *state, u8 onoff)
-{
-	deb_info("%s: onoff:%d\n", __func__, onoff);
-
-	return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff);
-}
-
-static int af9013_set_frontend(struct dvb_frontend *fe,
-	struct dvb_frontend_parameters *params)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	u8 auto_mode; /* auto set TPS */
-
-	deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency,
-		params->u.ofdm.bandwidth);
-
-	state->frequency = params->frequency;
-
-	/* program tuner */
-	if (fe->ops.tuner_ops.set_params)
-		fe->ops.tuner_ops.set_params(fe, params);
-
-	/* program CFOE coefficients */
-	ret = af9013_set_coeff(state, params->u.ofdm.bandwidth);
-	if (ret)
-		goto error;
-
-	/* program frequency control */
-	ret = af9013_set_freq_ctrl(state, fe);
-	if (ret)
-		goto error;
-
-	/* clear TPS lock flag (inverted flag) */
-	ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1);
-	if (ret)
-		goto error;
-
-	/* clear MPEG2 lock flag */
-	ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0);
-	if (ret)
-		goto error;
-
-	/* empty channel function */
-	ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0);
-	if (ret)
-		goto error;
-
-	/* empty DVB-T channel function */
-	ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0);
-	if (ret)
-		goto error;
-
-	/* program TPS and bandwidth, check if auto mode needed */
-	ret = af9013_set_ofdm_params(state, &params->u.ofdm, &auto_mode);
-	if (ret)
-		goto error;
+		goto err;
 
 	if (auto_mode) {
 		/* clear easy mode flag */
-		ret = af9013_write_reg(state, 0xaefd, 0);
-		deb_info("%s: auto TPS\n", __func__);
+		ret = af9013_wr_reg(state, 0xaefd, 0);
+		if (ret)
+			goto err;
+
+		dbg("%s: auto params", __func__);
 	} else {
 		/* set easy mode flag */
-		ret = af9013_write_reg(state, 0xaefd, 1);
+		ret = af9013_wr_reg(state, 0xaefd, 1);
 		if (ret)
-			goto error;
-		ret = af9013_write_reg(state, 0xaefe, 0);
-		deb_info("%s: manual TPS\n", __func__);
+			goto err;
+
+		ret = af9013_wr_reg(state, 0xaefe, 0);
+		if (ret)
+			goto err;
+
+		dbg("%s: manual params", __func__);
 	}
-	if (ret)
-		goto error;
 
-	/* everything is set, lets try to receive channel - OFSM GO! */
-	ret = af9013_write_reg(state, 0xffff, 0);
+	/* tune */
+	ret = af9013_wr_reg(state, 0xffff, 0);
 	if (ret)
-		goto error;
+		goto err;
 
-error:
+	state->bandwidth_hz = c->bandwidth_hz;
+	state->set_frontend_jiffies = jiffies;
+	state->first_tune = false;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
 }
 
···
 	struct dvb_frontend_parameters *p)
 {
 	struct af9013_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 	int ret;
-	u8 i, buf[3];
-	deb_info("%s\n", __func__);
+	u8 buf[3];
 
-	/* read TPS registers */
-	for (i = 0; i < 3; i++) {
-		ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
+	dbg("%s", __func__);
+
+	ret = af9013_rd_regs(state, 0xd3c0, buf, 3);
+	if (ret)
+		goto err;
 
 	switch ((buf[1] >> 6) & 3) {
 	case 0:
-		p->u.ofdm.constellation = QPSK;
+		c->modulation = QPSK;
 		break;
 	case 1:
-		p->u.ofdm.constellation = QAM_16;
+		c->modulation = QAM_16;
 		break;
 	case 2:
-		p->u.ofdm.constellation = QAM_64;
+		c->modulation = QAM_64;
 		break;
 	}
 
 	switch ((buf[0] >> 0) & 3) {
 	case 0:
-		p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
+		c->transmission_mode = TRANSMISSION_MODE_2K;
 		break;
 	case 1:
-		p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
+		c->transmission_mode = TRANSMISSION_MODE_8K;
 	}
 
 	switch ((buf[0] >> 2) & 3) {
 	case 0:
-		p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
+		c->transmission_mode = GUARD_INTERVAL_1_32;
 		break;
 	case 1:
-		p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
+		c->transmission_mode = GUARD_INTERVAL_1_16;
 		break;
 	case 2:
-		p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
+		c->transmission_mode = GUARD_INTERVAL_1_8;
 		break;
 	case 3:
-		p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
+		c->transmission_mode = GUARD_INTERVAL_1_4;
 		break;
 	}
 
 	switch ((buf[0] >> 4) & 7) {
 	case 0:
-		p->u.ofdm.hierarchy_information = HIERARCHY_NONE;
+		c->hierarchy = HIERARCHY_NONE;
 		break;
 	case 1:
-		p->u.ofdm.hierarchy_information = HIERARCHY_1;
+		c->hierarchy = HIERARCHY_1;
 		break;
 	case 2:
-		p->u.ofdm.hierarchy_information = HIERARCHY_2;
+		c->hierarchy = HIERARCHY_2;
 		break;
 	case 3:
-		p->u.ofdm.hierarchy_information = HIERARCHY_4;
+		c->hierarchy = HIERARCHY_4;
 		break;
 	}
 
 	switch ((buf[2] >> 0) & 7) {
 	case 0:
-		p->u.ofdm.code_rate_HP = FEC_1_2;
+		c->code_rate_HP = FEC_1_2;
 		break;
 	case 1:
-		p->u.ofdm.code_rate_HP = FEC_2_3;
+		c->code_rate_HP = FEC_2_3;
 		break;
 	case 2:
-		p->u.ofdm.code_rate_HP = FEC_3_4;
+		c->code_rate_HP = FEC_3_4;
 		break;
 	case 3:
-		p->u.ofdm.code_rate_HP = FEC_5_6;
+		c->code_rate_HP = FEC_5_6;
 		break;
 	case 4:
-		p->u.ofdm.code_rate_HP = FEC_7_8;
+		c->code_rate_HP = FEC_7_8;
 		break;
 	}
 
 	switch ((buf[2] >> 3) & 7) {
 	case 0:
-		p->u.ofdm.code_rate_LP = FEC_1_2;
+		c->code_rate_LP = FEC_1_2;
 		break;
 	case 1:
-		p->u.ofdm.code_rate_LP = FEC_2_3;
+		c->code_rate_LP = FEC_2_3;
 		break;
 	case 2:
-		p->u.ofdm.code_rate_LP = FEC_3_4;
+		c->code_rate_LP = FEC_3_4;
 		break;
 	case 3:
-		p->u.ofdm.code_rate_LP = FEC_5_6;
+		c->code_rate_LP = FEC_5_6;
 		break;
 	case 4:
-		p->u.ofdm.code_rate_LP = FEC_7_8;
+		c->code_rate_LP = FEC_7_8;
 		break;
 	}
 
 	switch ((buf[1] >> 2) & 3) {
 	case 0:
-		p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
+		c->bandwidth_hz = 6000000;
 		break;
 	case 1:
-		p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
+		c->bandwidth_hz = 7000000;
 		break;
 	case 2:
-		p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
+		c->bandwidth_hz = 8000000;
 		break;
 	}
 
-	p->inversion = INVERSION_AUTO;
-	p->frequency = state->frequency;
-
-error:
 	return ret;
-}
-
-static int af9013_update_ber_unc(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	u8 buf[3], i;
-	u32 error_bit_count = 0;
-	u32 total_bit_count = 0;
-	u32 abort_packet_count = 0;
-
-	state->ber = 0;
-
-	/* check if error bit count is ready */
-	ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]);
-	if (ret)
-		goto error;
-	if (!buf[0])
-		goto exit;
-
-	/* get RSD packet abort count */
-	for (i = 0; i < 2; i++) {
-		ret = af9013_read_reg(state, 0xd38a + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
-	abort_packet_count = (buf[1] << 8) + buf[0];
-
-	/* get error bit count */
-	for (i = 0; i < 3; i++) {
-		ret = af9013_read_reg(state, 0xd387 + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
-	error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0];
-	error_bit_count = error_bit_count - abort_packet_count * 8 * 8;
-
-	/* get used RSD counting period (10000 RSD packets used) */
-	for (i = 0; i < 2; i++) {
-		ret = af9013_read_reg(state, 0xd385 + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
-	total_bit_count = (buf[1] << 8) + buf[0];
-	total_bit_count = total_bit_count - abort_packet_count;
-	total_bit_count = total_bit_count * 204 * 8;
-
-	if (total_bit_count)
-		state->ber = error_bit_count * 1000000000 / total_bit_count;
-
-	state->ucblocks += abort_packet_count;
-
-	deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__,
-		error_bit_count, total_bit_count, abort_packet_count);
-
-	/* set BER counting range */
-	ret = af9013_write_reg(state, 0xd385, 10000 & 0xff);
-	if (ret)
-		goto error;
-	ret = af9013_write_reg(state, 0xd386, 10000 >> 8);
-	if (ret)
-		goto error;
-	/* reset and start BER counter */
-	ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1);
-	if (ret)
-		goto error;
-
-exit:
-error:
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
-}
-
-static int af9013_update_snr(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	u8 buf[3], i, len;
-	u32 quant = 0;
-	struct snr_table *uninitialized_var(snr_table);
-
-	/* check if quantizer ready (for snr) */
-	ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]);
-	if (ret)
-		goto error;
-	if (buf[0]) {
-		/* quantizer ready - read it */
-		for (i = 0; i < 3; i++) {
-			ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]);
-			if (ret)
-				goto error;
-		}
-		quant = (buf[2] << 16) + (buf[1] << 8) + buf[0];
-
-		/* read current constellation */
-		ret = af9013_read_reg(state, 0xd3c1, &buf[0]);
-		if (ret)
-			goto error;
-
-		switch ((buf[0] >> 6) & 3) {
-		case 0:
-			len = ARRAY_SIZE(qpsk_snr_table);
-			snr_table = qpsk_snr_table;
-			break;
-		case 1:
-			len = ARRAY_SIZE(qam16_snr_table);
-			snr_table = qam16_snr_table;
-			break;
-		case 2:
-			len = ARRAY_SIZE(qam64_snr_table);
-			snr_table = qam64_snr_table;
-			break;
-		default:
-			len = 0;
-			break;
-		}
-
-		if (len) {
-			for (i = 0; i < len; i++) {
-				if (quant < snr_table[i].val) {
-					state->snr = snr_table[i].snr * 10;
-					break;
-				}
-			}
-		}
-
-		/* set quantizer super frame count */
-		ret = af9013_write_reg(state, 0xd2e2, 1);
-		if (ret)
-			goto error;
-
-		/* check quantizer availability */
-		for (i = 0; i < 10; i++) {
-			msleep(10);
-			ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1,
-				&buf[0]);
-			if (ret)
-				goto error;
-			if (!buf[0])
-				break;
-		}
-
-		/* reset quantizer */
-		ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1);
-		if (ret)
-			goto error;
-	}
-
-error:
-	return ret;
-}
-
-static int af9013_update_signal_strength(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret = 0;
-	u8 rf_gain, if_gain;
-	int signal_strength;
-
-	deb_info("%s\n", __func__);
-
-	if (state->signal_strength_en) {
-		ret = af9013_read_reg(state, 0xd07c, &rf_gain);
-		if (ret)
-			goto error;
-		ret = af9013_read_reg(state, 0xd07d, &if_gain);
-		if (ret)
-			goto error;
-		signal_strength = (0xffff / \
-			(9 * (state->rf_50 + state->if_50) - \
-			11 * (state->rf_80 + state->if_80))) * \
-			(10 * (rf_gain + if_gain) - \
-			11 * (state->rf_80 + state->if_80));
-		if (signal_strength < 0)
-			signal_strength = 0;
-		else if (signal_strength > 0xffff)
-			signal_strength = 0xffff;
-
-		state->signal_strength = signal_strength;
-	} else {
-		state->signal_strength = 0;
-	}
-
-error:
-	return ret;
-}
-
-static int af9013_update_statistics(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-
-	if (time_before(jiffies, state->next_statistics_check))
-		return 0;
-
-	/* set minimum statistic update interval */
-	state->next_statistics_check = jiffies + msecs_to_jiffies(1200);
-
-	ret = af9013_update_signal_strength(fe);
-	if (ret)
-		goto error;
-	ret = af9013_update_snr(fe);
-	if (ret)
-		goto error;
-	ret = af9013_update_ber_unc(fe);
-	if (ret)
-		goto error;
-
-error:
-	return ret;
-}
-
-static int af9013_get_tune_settings(struct dvb_frontend *fe,
-	struct dvb_frontend_tune_settings *fesettings)
-{
-	fesettings->min_delay_ms = 800;
-	fesettings->step_size = 0;
-	fesettings->max_drift = 0;
-
-	return 0;
 }
 
 static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status)
 {
 	struct af9013_state *state = fe->demodulator_priv;
-	int ret = 0;
+	int ret;
 	u8 tmp;
-	*status = 0;
+
+	/*
+	 * Return status from the cache if it is younger than 2000ms with the
+	 * exception of last tune is done during 4000ms.
+	 */
+	if (time_is_after_jiffies(
+		state->read_status_jiffies + msecs_to_jiffies(2000)) &&
+		time_is_before_jiffies(
+		state->set_frontend_jiffies + msecs_to_jiffies(4000))
+	) {
+			*status = state->fe_status;
+			return 0;
+	} else {
+		*status = 0;
+	}
 
 	/* MPEG2 lock */
-	ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp);
+	ret = af9013_rd_reg_bits(state, 0xd507, 6, 1, &tmp);
 	if (ret)
-		goto error;
+		goto err;
+
 	if (tmp)
 		*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
 			FE_HAS_SYNC | FE_HAS_LOCK;
 
 	if (!*status) {
 		/* TPS lock */
-		ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp);
+		ret = af9013_rd_reg_bits(state, 0xd330, 3, 1, &tmp);
 		if (ret)
-			goto error;
+			goto err;
+
 		if (tmp)
 			*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
 				FE_HAS_VITERBI;
 	}
 
-	if (!*status) {
-		/* CFO lock */
-		ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp);
-		if (ret)
-			goto error;
-		if (tmp)
-			*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
-	}
+	state->fe_status = *status;
+	state->read_status_jiffies = jiffies;
 
-	if (!*status) {
-		/* SFOE lock */
-		ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp);
-		if (ret)
-			goto error;
-		if (tmp)
-			*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
-	}
-
-	if (!*status) {
-		/* AGC lock */
-		ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp);
-		if (ret)
-			goto error;
-		if (tmp)
-			*status |= FE_HAS_SIGNAL;
-	}
-
-	ret = af9013_update_statistics(fe);
-
-error:
 	return ret;
-}
-
-
-static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	ret = af9013_update_statistics(fe);
-	*ber = state->ber;
-	return ret;
-}
-
-static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	ret = af9013_update_statistics(fe);
-	*strength = state->signal_strength;
+err:
+	dbg("%s: failed=%d", __func__, ret);
 	return ret;
 }
 
 static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
 {
 	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	ret = af9013_update_statistics(fe);
 	*snr = state->snr;
-	return ret;
+	return 0;
+}
+
+static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	*strength = state->signal_strength;
+	return 0;
+}
+
+static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	*ber = state->ber;
+	return 0;
 }
 
 static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 {
 	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	ret = af9013_update_statistics(fe);
 	*ucblocks = state->ucblocks;
-	return ret;
-}
-
-static int af9013_sleep(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	int ret;
-	deb_info("%s\n", __func__);
-
-	ret = af9013_lock_led(state, 0);
-	if (ret)
-		goto error;
-
-	ret = af9013_power_ctrl(state, 0);
-error:
-	return ret;
+	return 0;
 }
 
 static int af9013_init(struct dvb_frontend *fe)
 {
 	struct af9013_state *state = fe->demodulator_priv;
 	int ret, i, len;
-	u8 tmp0, tmp1;
-	struct regdesc *init;
-	deb_info("%s\n", __func__);
+	u8 buf[3], tmp;
+	u32 adc_cw;
+	const struct af9013_reg_bit *init;
 
-	/* reset OFDM */
-	ret = af9013_reset(state, 0);
-	if (ret)
-		goto error;
+	dbg("%s", __func__);
 
 	/* power on */
 	ret = af9013_power_ctrl(state, 1);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* enable ADC */
-	ret = af9013_write_reg(state, 0xd73a, 0xa4);
+	ret = af9013_wr_reg(state, 0xd73a, 0xa4);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* write API version to firmware */
-	for (i = 0; i < sizeof(state->config.api_version); i++) {
-		ret = af9013_write_reg(state, 0x9bf2 + i,
-			state->config.api_version[i]);
-		if (ret)
-			goto error;
-	}
+	ret = af9013_wr_regs(state, 0x9bf2, state->config.api_version, 4);
+	if (ret)
+		goto err;
 
 	/* program ADC control */
-	ret = af9013_set_adc_ctrl(state);
+	switch (state->config.clock) {
+	case 28800000: /* 28.800 MHz */
+		tmp = 0;
+		break;
+	case 20480000: /* 20.480 MHz */
+		tmp = 1;
+		break;
+	case 28000000: /* 28.000 MHz */
+		tmp = 2;
+		break;
+	case 25000000: /* 25.000 MHz */
+		tmp = 3;
+		break;
+	default:
+		err("invalid clock");
+		return -EINVAL;
+	}
+
+	adc_cw = af913_div(state->config.clock, 1000000ul, 19);
+	buf[0] = (adc_cw >>  0) & 0xff;
+	buf[1] = (adc_cw >>  8) & 0xff;
+	buf[2] = (adc_cw >> 16) & 0xff;
+
+	ret = af9013_wr_regs(state, 0xd180, buf, 3);
 	if (ret)
-		goto error;
+		goto err;
+
+	ret = af9013_wr_reg_bits(state, 0x9bd2, 0, 4, tmp);
+	if (ret)
+		goto err;
 
 	/* set I2C master clock */
-	ret = af9013_write_reg(state, 0xd416, 0x14);
+	ret = af9013_wr_reg(state, 0xd416, 0x14);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* set 16 embx */
-	ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1);
+	ret = af9013_wr_reg_bits(state, 0xd700, 1, 1, 1);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* set no trigger */
-	ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0);
+	ret = af9013_wr_reg_bits(state, 0xd700, 2, 1, 0);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* set read-update bit for constellation */
-	ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1);
+	ret = af9013_wr_reg_bits(state, 0xd371, 1, 1, 1);
 	if (ret)
-		goto error;
+		goto err;
 
-	/* enable FEC monitor */
-	ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1);
+	/* settings for mp2if */
+	if (state->config.ts_mode == AF9013_TS_USB) {
+		/* AF9015 split PSB to 1.5k + 0.5k */
+		ret = af9013_wr_reg_bits(state, 0xd50b, 2, 1, 1);
+		if (ret)
+			goto err;
+	} else {
+		/* AF9013 change the output bit to data7 */
+		ret = af9013_wr_reg_bits(state, 0xd500, 3, 1, 1);
+		if (ret)
+			goto err;
+
+		/* AF9013 set mpeg to full speed */
+		ret = af9013_wr_reg_bits(state, 0xd502, 4, 1, 1);
+		if (ret)
+			goto err;
+	}
+
+	ret = af9013_wr_reg_bits(state, 0xd520, 4, 1, 1);
 	if (ret)
-		goto error;
+		goto err;
 
 	/* load OFSM settings */
-	deb_info("%s: load ofsm settings\n", __func__);
+	dbg("%s: load ofsm settings", __func__);
 	len = ARRAY_SIZE(ofsm_init);
 	init = ofsm_init;
 	for (i = 0; i < len; i++) {
-		ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
+		ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
 			init[i].len, init[i].val);
 		if (ret)
-			goto error;
+			goto err;
 	}
 
 	/* load tuner specific settings */
-	deb_info("%s: load tuner specific settings\n", __func__);
+	dbg("%s: load tuner specific settings", __func__);
 	switch (state->config.tuner) {
 	case AF9013_TUNER_MXL5003D:
 		len = ARRAY_SIZE(tuner_init_mxl5003d);
···
 	}
 
 	for (i = 0; i < len; i++) {
-		ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
+		ret = af9013_wr_reg_bits(state, init[i].addr, init[i].pos,
 			init[i].len, init[i].val);
 		if (ret)
-			goto error;
+			goto err;
 	}
 
-	/* set TS mode */
-	deb_info("%s: setting ts mode\n", __func__);
-	tmp0 = 0; /* parallel mode */
-	tmp1 = 0; /* serial mode */
-	switch (state->config.output_mode) {
-	case AF9013_OUTPUT_MODE_PARALLEL:
-		tmp0 = 1;
-		break;
-	case AF9013_OUTPUT_MODE_SERIAL:
-		tmp1 = 1;
-		break;
-	case AF9013_OUTPUT_MODE_USB:
-		/* usb mode for AF9015 */
-	default:
-		break;
-	}
-	ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */
+	/* TS mode */
+	ret = af9013_wr_reg_bits(state, 0xd500, 1, 2, state->config.ts_mode);
 	if (ret)
-		goto error;
-	ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */
-	if (ret)
-		goto error;
+		goto err;
 
 	/* enable lock led */
-	ret = af9013_lock_led(state, 1);
+	ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 1);
 	if (ret)
-		goto error;
+		goto err;
 
-	/* read values needed for signal strength calculation */
-	ret = af9013_read_reg_bits(state, 0x9bee, 0, 1,
-		&state->signal_strength_en);
-	if (ret)
-		goto error;
-
-	if (state->signal_strength_en) {
-		ret = af9013_read_reg(state, 0x9bbd, &state->rf_50);
+	/* check if we support signal strength */
+	if (!state->signal_strength_en) {
+		ret = af9013_rd_reg_bits(state, 0x9bee, 0, 1,
+			&state->signal_strength_en);
 		if (ret)
-			goto error;
-		ret = af9013_read_reg(state, 0x9bd0, &state->rf_80);
-		if (ret)
-			goto error;
-		ret = af9013_read_reg(state, 0x9be2, &state->if_50);
-		if (ret)
-			goto error;
-		ret = af9013_read_reg(state, 0x9be4, &state->if_80);
-		if (ret)
-			goto error;
+			goto err;
 	}
 
-error:
+	/* read values needed for signal strength calculation */
+	if (state->signal_strength_en && !state->rf_50) {
+		ret = af9013_rd_reg(state, 0x9bbd, &state->rf_50);
+		if (ret)
+			goto err;
+
+		ret = af9013_rd_reg(state, 0x9bd0, &state->rf_80);
+		if (ret)
+			goto err;
+
+		ret = af9013_rd_reg(state, 0x9be2, &state->if_50);
+		if (ret)
+			goto err;
+
+		ret = af9013_rd_reg(state, 0x9be4, &state->if_80);
+		if (ret)
+			goto err;
+	}
+
+	/* SNR */
+	ret = af9013_wr_reg(state, 0xd2e2, 1);
+	if (ret)
+		goto err;
+
+	/* BER / UCB */
+	buf[0] = (10000 >> 0) & 0xff;
+	buf[1] = (10000 >> 8) & 0xff;
+	ret = af9013_wr_regs(state, 0xd385, buf, 2);
+	if (ret)
+		goto err;
+
+	/* enable FEC monitor */
+	ret = af9013_wr_reg_bits(state, 0xd392, 1, 1, 1);
+	if (ret)
+		goto err;
+
+	state->first_tune = true;
+	schedule_delayed_work(&state->statistics_work, msecs_to_jiffies(400));
+
 	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static int af9013_sleep(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	int ret;
+
+	dbg("%s", __func__);
+
+	/* stop statistics polling */
+	cancel_delayed_work_sync(&state->statistics_work);
+
+	/* disable lock led */
+	ret = af9013_wr_reg_bits(state, 0xd730, 0, 1, 0);
+	if (ret)
+		goto err;
+
+	/* power off */
+	ret = af9013_power_ctrl(state, 0);
+	if (ret)
+		goto err;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+	int ret;
+	struct af9013_state *state = fe->demodulator_priv;
+
+	dbg("%s: enable=%d", __func__, enable);
+
+	/* gate already open or close */
+	if (state->i2c_gate_state == enable)
+		return 0;
+
+	if (state->config.ts_mode == AF9013_TS_USB)
+		ret = af9013_wr_reg_bits(state, 0xd417, 3, 1, enable);
+	else
+		ret = af9013_wr_reg_bits(state, 0xd607, 2, 1, enable);
+	if (ret)
+		goto err;
+
+	state->i2c_gate_state = enable;
+
+	return ret;
+err:
+	dbg("%s: failed=%d", __func__, ret);
+	return ret;
+}
+
+static void af9013_release(struct dvb_frontend *fe)
+{
+	struct af9013_state *state = fe->demodulator_priv;
+	kfree(state);
 }
 
 static struct dvb_frontend_ops af9013_ops;
···
 
 	msleep(100);
 	/* check whether firmware is already running */
-	ret = af9013_read_reg(state, 0x98be, &val);
+	ret = af9013_rd_reg(state, 0x98be, &val);
 	if (ret)
-		goto error;
+		goto err;
 	else
-		deb_info("%s: firmware status:%02x\n", __func__, val);
+		dbg("%s: firmware status=%02x", __func__, val);
 
 	if (val == 0x0c) /* fw is running, no need for download */
 		goto exit;
···
 			"Please see linux/Documentation/dvb/ for more details" \
 			" on firmware-problems. (%d)",
 			fw_file, ret);
-		goto error;
+		goto err;
 	}
 
 	info("downloading firmware from file '%s'", fw_file);
···
 	ret = af9013_write_ofsm_regs(state, 0x50fc,
 		fw_params, sizeof(fw_params));
 	if (ret)
-		goto error_release;
+		goto err_release;
 
 	#define FW_ADDR 0x5100 /* firmware start address */
 	#define LEN_MAX 16 /* max packet size */
···
 			(u8 *) &fw->data[fw->size - remaining], len);
 		if (ret) {
 			err("firmware download failed:%d", ret);
-			goto error_release;
+			goto err_release;
 		}
 	}
 
 	/* request boot firmware */
-	ret = af9013_write_reg(state, 0xe205, 1);
+	ret = af9013_wr_reg(state, 0xe205, 1);
 	if (ret)
-		goto error_release;
+		goto err_release;
 
 	for (i = 0; i < 15; i++) {
 		msleep(100);
 
 		/* check firmware status */
-		ret = af9013_read_reg(state, 0x98be, &val);
+		ret = af9013_rd_reg(state, 0x98be, &val);
 		if (ret)
-			goto error_release;
+			goto err_release;
 
-		deb_info("%s: firmware status:%02x\n", __func__, val);
+		dbg("%s: firmware status=%02x", __func__, val);
 
 		if (val == 0x0c || val == 0x04) /* success or fail */
 			break;
···
 
 	if (val == 0x04) {
 		err("firmware did not run");
-		ret = -1;
+		ret = -ENODEV;
 	} else if (val != 0x0c) {
 		err("firmware boot timeout");
-		ret = -1;
+		ret = -ENODEV;
 	}
 
-error_release:
+err_release:
 	release_firmware(fw);
-error:
+err:
 exit:
 	if (!ret)
 		info("found a '%s' in warm state.", af9013_ops.info.name);
 	return ret;
 }
-
-static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
-	int ret;
-	struct af9013_state *state = fe->demodulator_priv;
-	deb_info("%s: enable:%d\n", __func__, enable);
-
-	if (state->config.output_mode == AF9013_OUTPUT_MODE_USB)
-		ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable);
-	else
-		ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable);
-
-	return ret;
-}
-
-static void af9013_release(struct dvb_frontend *fe)
-{
-	struct af9013_state *state = fe->demodulator_priv;
-	kfree(state);
-}
-
-static struct dvb_frontend_ops af9013_ops;
 
 struct dvb_frontend *af9013_attach(const struct af9013_config *config,
 	struct i2c_adapter *i2c)
···
 	/* allocate memory for the internal state */
 	state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL);
 	if (state == NULL)
-		goto error;
+		goto err;
 
 	/* setup the state */
 	state->i2c = i2c;
 	memcpy(&state->config, config, sizeof(struct af9013_config));
 
 	/* download firmware */
-	if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) {
+	if (state->config.ts_mode != AF9013_TS_USB) {
 		ret = af9013_download_firmware(state);
 		if (ret)
-			goto error;
+			goto err;
 	}
 
 	/* firmware version */
-	for (i = 0; i < 4; i++) {
-		ret = af9013_read_reg(state, 0x5103 + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
-	info("firmware version:%d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
-
-	/* chip version */
-	ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]);
+	ret = af9013_rd_regs(state, 0x5103, buf, 4);
 	if (ret)
-		goto error;
+		goto err;
 
-	/* ROM version */
-	for (i = 0; i < 2; i++) {
-		ret = af9013_read_reg(state, 0x116b + i, &buf[i]);
-		if (ret)
-			goto error;
-	}
-	deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__,
-		buf[2], buf[0], buf[1]);
-
-	/* settings for mp2if */
-	if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) {
-		/* AF9015 split PSB to 1.5k + 0.5k */
-		ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1);
-	} else {
-		/* AF9013 change the output bit to data7 */
-		ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1);
-		if (ret)
-			goto error;
-		/* AF9013 set mpeg to full speed */
-		ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1);
-	}
-	if (ret)
-		goto error;
-	ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1);
-	if (ret)
-		goto error;
+	info("firmware version %d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
 
 	/* set GPIOs */
 	for (i = 0; i < sizeof(state->config.gpio); i++) {
 		ret = af9013_set_gpio(state, i, state->config.gpio[i]);
 		if (ret)
-			goto error;
+			goto err;
 	}
 
 	/* create dvb_frontend */
-	memcpy(&state->frontend.ops, &af9013_ops,
+	memcpy(&state->fe.ops, &af9013_ops,
 		sizeof(struct dvb_frontend_ops));
-	state->frontend.demodulator_priv = state;
+	state->fe.demodulator_priv = state;
 
-	return &state->frontend;
-error:
+	INIT_DELAYED_WORK(&state->statistics_work, af9013_statistics_work);
+
+	return &state->fe;
+err:
 	kfree(state);
 	return NULL;
 }
···
 
 static struct dvb_frontend_ops af9013_ops = {
 	.info = {
-		.name = "Afatech AF9013 DVB-T",
+		.name = "Afatech AF9013",
 		.type = FE_OFDM,
 		.frequency_min = 174000000,
 		.frequency_max = 862000000,
 		.frequency_stepsize = 250000,
 		.frequency_tolerance = 0,
-		.caps =
-			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
-			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
-			FE_CAN_QPSK | FE_CAN_QAM_16 |
-			FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+		.caps =	FE_CAN_FEC_1_2 |
+			FE_CAN_FEC_2_3 |
+			FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_5_6 |
+			FE_CAN_FEC_7_8 |
+			FE_CAN_FEC_AUTO |
+			FE_CAN_QPSK |
+			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 = af9013_release,
+
 	.init = af9013_init,
 	.sleep = af9013_sleep,
-	.i2c_gate_ctrl = af9013_i2c_gate_ctrl,
 
+	.get_tune_settings = af9013_get_tune_settings,
 	.set_frontend = af9013_set_frontend,
 	.get_frontend = af9013_get_frontend,
 
-	.get_tune_settings = af9013_get_tune_settings,
-
 	.read_status = af9013_read_status,
-	.read_ber = af9013_read_ber,
-	.read_signal_strength = af9013_read_signal_strength,
 	.read_snr = af9013_read_snr,
+	.read_signal_strength = af9013_read_signal_strength,
+	.read_ber = af9013_read_ber,
 	.read_ucblocks = af9013_read_ucblocks,
-};
 
-module_param_named(debug, af9013_debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
+	.i2c_gate_ctrl = af9013_i2c_gate_ctrl,
+};
 
 MODULE_AUTHOR("Antti Palosaari <[e-mail]>");
 MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");

drivers/media/dvb/frontends/af9013.h

···
  * Afatech AF9013 demodulator driver
  *
  * Copyright (C) 2007 Antti Palosaari <[e-mail]>
+ * Copyright (C) 2011 Antti Palosaari <[e-mail]>
  *
  * Thanks to Afatech who kindly provided information.
  *
···
  *
  */
 
-#ifndef _AF9013_H_
-#define _AF9013_H_
+#ifndef AF9013_H
+#define AF9013_H
 
 #include <linux/dvb/frontend.h>
-
-enum af9013_ts_mode {
-	AF9013_OUTPUT_MODE_PARALLEL,
-	AF9013_OUTPUT_MODE_SERIAL,
-	AF9013_OUTPUT_MODE_USB, /* only for AF9015 */
-};
-
-enum af9013_tuner {
-	AF9013_TUNER_MXL5003D   =   3, /* MaxLinear */
-	AF9013_TUNER_MXL5005D   =  13, /* MaxLinear */
-	AF9013_TUNER_MXL5005R   =  30, /* MaxLinear */
-	AF9013_TUNER_ENV77H11D5 = 129, /* Panasonic */
-	AF9013_TUNER_MT2060     = 130, /* Microtune */
-	AF9013_TUNER_MC44S803   = 133, /* Freescale */
-	AF9013_TUNER_QT1010     = 134, /* Quantek */
-	AF9013_TUNER_UNKNOWN    = 140, /* for can tuners ? */
-	AF9013_TUNER_MT2060_2   = 147, /* Microtune */
-	AF9013_TUNER_TDA18271   = 156, /* NXP */
-	AF9013_TUNER_QT1010A    = 162, /* Quantek */
-	AF9013_TUNER_MXL5007T   = 177, /* MaxLinear */
-	AF9013_TUNER_TDA18218   = 179, /* NXP */
-};
 
 /* AF9013/5 GPIOs (mostly guessed)
    demod#1-gpio#0 - set demod#2 i2c-addr for dual devices
···
    demod#2-gpio#0 - tuner#2
    demod#2-gpio#1 - xtal setting (?)
 */
+
+struct af9013_config {
+	/*
+	 * I2C address
+	 */
+	u8 i2c_addr;
+
+	/*
+	 * clock
+	 * 20480000, 25000000, 28000000, 28800000
+	 */
+	u32 clock;
+
+	/*
+	 * tuner
+	 */
+#define AF9013_TUNER_MXL5003D      3 /* MaxLinear */
+#define AF9013_TUNER_MXL5005D     13 /* MaxLinear */
+#define AF9013_TUNER_MXL5005R     30 /* MaxLinear */
+#define AF9013_TUNER_ENV77H11D5  129 /* Panasonic */
+#define AF9013_TUNER_MT2060      130 /* Microtune */
+#define AF9013_TUNER_MC44S803    133 /* Freescale */
+#define AF9013_TUNER_QT1010      134 /* Quantek */
+#define AF9013_TUNER_UNKNOWN     140 /* for can tuners ? */
+#define AF9013_TUNER_MT2060_2    147 /* Microtune */
+#define AF9013_TUNER_TDA18271    156 /* NXP */
+#define AF9013_TUNER_QT1010A     162 /* Quantek */
+#define AF9013_TUNER_MXL5007T    177 /* MaxLinear */
+#define AF9013_TUNER_TDA18218    179 /* NXP */
+	u8 tuner;
+
+	/*
+	 * IF frequency
+	 */
+	u32 if_frequency;
+
+	/*
+	 * TS settings
+	 */
+#define AF9013_TS_USB       0
+#define AF9013_TS_PARALLEL  1
+#define AF9013_TS_SERIAL    2
+	u8 ts_mode:2;
+
+	/*
+	 * input spectrum inversion
+	 */
+	bool spec_inv;
+
+	/*
+	 * firmware API version
+	 */
+	u8 api_version[4];
+
+	/*
+	 * GPIOs
+	 */
 #define AF9013_GPIO_ON (1 << 0)
 #define AF9013_GPIO_EN (1 << 1)
 #define AF9013_GPIO_O  (1 << 2)
 #define AF9013_GPIO_I  (1 << 3)
-
 #define AF9013_GPIO_LO (AF9013_GPIO_ON|AF9013_GPIO_EN)
 #define AF9013_GPIO_HI (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
-
 #define AF9013_GPIO_TUNER_ON  (AF9013_GPIO_ON|AF9013_GPIO_EN)
 #define AF9013_GPIO_TUNER_OFF (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
-
-struct af9013_config {
-	/* demodulator's I2C address */
-	u8 demod_address;
-
-	/* frequencies in kHz */
-	u32 adc_clock;
-
-	/* tuner ID */
-	u8 tuner;
-
-	/* tuner IF */
-	u16 tuner_if;
-
-	/* TS data output mode */
-	u8 output_mode:2;
-
-	/* RF spectrum inversion */
-	u8 rf_spec_inv:1;
-
-	/* API version */
-	u8 api_version[4];
-
-	/* GPIOs */
 	u8 gpio[4];
 };
-
 
 #if defined(CONFIG_DVB_AF9013) || \
 	(defined(CONFIG_DVB_AF9013_MODULE) && defined(MODULE))
···
 }
 #endif /* CONFIG_DVB_AF9013 */
 
-#endif /* _AF9013_H_ */
+#endif /* AF9013_H */

drivers/media/dvb/frontends/af9013_priv.h

···
  * Afatech AF9013 demodulator driver
  *
  * Copyright (C) 2007 Antti Palosaari <[e-mail]>
+ * Copyright (C) 2011 Antti Palosaari <[e-mail]>
  *
  * Thanks to Afatech who kindly provided information.
  *
···
  *
  */
 
-#ifndef _AF9013_PRIV_
-#define _AF9013_PRIV_
+#ifndef AF9013_PRIV_H
+#define AF9013_PRIV_H
+
+#include "dvb_frontend.h"
+#include "af9013.h"
+#include <linux/firmware.h>
 
 #define LOG_PREFIX "af9013"
-extern int af9013_debug;
 
-#define dprintk(var, level, args...) \
-	    do { if ((var & level)) printk(args); } while (0)
-
-#define debug_dump(b, l, func) {\
-	int loop_; \
-	for (loop_ = 0; loop_ < l; loop_++) \
-		func("%02x ", b[loop_]); \
-	func("\n");\
-}
-
-#define deb_info(args...) dprintk(af9013_debug, 0x01, args)
-
+#undef dbg
+#define dbg(f, arg...) \
+	if (af9013_debug) \
+		printk(KERN_INFO   LOG_PREFIX": " f "\n" , ## arg)
 #undef err
 #define err(f, arg...)  printk(KERN_ERR     LOG_PREFIX": " f "\n" , ## arg)
 #undef info
···
 
 #define AF9013_DEFAULT_FIRMWARE     "dvb-fe-af9013.fw"
 
-struct regdesc {
+struct af9013_reg_bit {
 	u16 addr;
 	u8  pos:4;
 	u8  len:4;
 	u8  val;
 };
 
-struct snr_table {
+struct af9013_snr {
 	u32 val;
 	u8 snr;
 };
 
-struct coeff {
-	u32 adc_clock;
-	fe_bandwidth_t bw;
+struct af9013_coeff {
+	u32 clock;
+	u32 bandwidth_hz;
 	u8 val[24];
 };
 
 /* pre-calculated coeff lookup table */
-static struct coeff coeff_table[] = {
+static const struct af9013_coeff coeff_lut[] = {
 	/* 28.800 MHz */
-	{ 28800, BANDWIDTH_8_MHZ, { 0x02, 0x8a, 0x28, 0xa3, 0x05, 0x14,
+	{ 28800000, 8000000, { 0x02, 0x8a, 0x28, 0xa3, 0x05, 0x14,
 		0x51, 0x11, 0x00, 0xa2, 0x8f, 0x3d, 0x00, 0xa2, 0x8a,
 		0x29, 0x00, 0xa2, 0x85, 0x14, 0x01, 0x45, 0x14, 0x14 } },
-	{ 28800, BANDWIDTH_7_MHZ, { 0x02, 0x38, 0xe3, 0x8e, 0x04, 0x71,
+	{ 28800000, 7000000, { 0x02, 0x38, 0xe3, 0x8e, 0x04, 0x71,
 		0xc7, 0x07, 0x00, 0x8e, 0x3d, 0x55, 0x00, 0x8e, 0x38,
 		0xe4, 0x00, 0x8e, 0x34, 0x72, 0x01, 0x1c, 0x71, 0x32 } },
-	{ 28800, BANDWIDTH_6_MHZ, { 0x01, 0xe7, 0x9e, 0x7a, 0x03, 0xcf,
+	{ 28800000, 6000000, { 0x01, 0xe7, 0x9e, 0x7a, 0x03, 0xcf,
 		0x3c, 0x3d, 0x00, 0x79, 0xeb, 0x6e, 0x00, 0x79, 0xe7,
 		0x9e, 0x00, 0x79, 0xe3, 0xcf, 0x00, 0xf3, 0xcf, 0x0f } },
 	/* 20.480 MHz */
-	{ 20480, BANDWIDTH_8_MHZ, { 0x03, 0x92, 0x49, 0x26, 0x07, 0x24,
+	{ 20480000, 8000000, { 0x03, 0x92, 0x49, 0x26, 0x07, 0x24,
 		0x92, 0x13, 0x00, 0xe4, 0x99, 0x6e, 0x00, 0xe4, 0x92,
 		0x49, 0x00, 0xe4, 0x8b, 0x25, 0x01, 0xc9, 0x24, 0x25 } },
-	{ 20480, BANDWIDTH_7_MHZ, { 0x03, 0x20, 0x00, 0x01, 0x06, 0x40,
+	{ 20480000, 7000000, { 0x03, 0x20, 0x00, 0x01, 0x06, 0x40,
 		0x00, 0x00, 0x00, 0xc8, 0x06, 0x40, 0x00, 0xc8, 0x00,
 		0x00, 0x00, 0xc7, 0xf9, 0xc0, 0x01, 0x90, 0x00, 0x00 } },
-	{ 20480, BANDWIDTH_6_MHZ, { 0x02, 0xad, 0xb6, 0xdc, 0x05, 0x5b,
+	{ 20480000, 6000000, { 0x02, 0xad, 0xb6, 0xdc, 0x05, 0x5b,
 		0x6d, 0x2e, 0x00, 0xab, 0x73, 0x13, 0x00, 0xab, 0x6d,
 		0xb7, 0x00, 0xab, 0x68, 0x5c, 0x01, 0x56, 0xdb, 0x1c } },
 	/* 28.000 MHz */
-	{ 28000, BANDWIDTH_8_MHZ, { 0x02, 0x9c, 0xbc, 0x15, 0x05, 0x39,
+	{ 28000000, 8000000, { 0x02, 0x9c, 0xbc, 0x15, 0x05, 0x39,
 		0x78, 0x0a, 0x00, 0xa7, 0x34, 0x3f, 0x00, 0xa7, 0x2f,
 		0x05, 0x00, 0xa7, 0x29, 0xcc, 0x01, 0x4e, 0x5e, 0x03 } },
-	{ 28000, BANDWIDTH_7_MHZ, { 0x02, 0x49, 0x24, 0x92, 0x04, 0x92,
+	{ 28000000, 7000000, { 0x02, 0x49, 0x24, 0x92, 0x04, 0x92,
 		0x49, 0x09, 0x00, 0x92, 0x4d, 0xb7, 0x00, 0x92, 0x49,
 		0x25, 0x00, 0x92, 0x44, 0x92, 0x01, 0x24, 0x92, 0x12 } },
-	{ 28000, BANDWIDTH_6_MHZ, { 0x01, 0xf5, 0x8d, 0x10, 0x03, 0xeb,
+	{ 28000000, 6000000, { 0x01, 0xf5, 0x8d, 0x10, 0x03, 0xeb,
 		0x1a, 0x08, 0x00, 0x7d, 0x67, 0x2f, 0x00, 0x7d, 0x63,
 		0x44, 0x00, 0x7d, 0x5f, 0x59, 0x00, 0xfa, 0xc6, 0x22 } },
 	/* 25.000 MHz */
-	{ 25000, BANDWIDTH_8_MHZ, { 0x02, 0xec, 0xfb, 0x9d, 0x05, 0xd9,
+	{ 25000000, 8000000, { 0x02, 0xec, 0xfb, 0x9d, 0x05, 0xd9,
 		0xf7, 0x0e, 0x00, 0xbb, 0x44, 0xc1, 0x00, 0xbb, 0x3e,
 		0xe7, 0x00, 0xbb, 0x39, 0x0d, 0x01, 0x76, 0x7d, 0x34 } },
-	{ 25000, BANDWIDTH_7_MHZ, { 0x02, 0x8f, 0x5c, 0x29, 0x05, 0x1e,
+	{ 25000000, 7000000, { 0x02, 0x8f, 0x5c, 0x29, 0x05, 0x1e,
 		0xb8, 0x14, 0x00, 0xa3, 0xdc, 0x29, 0x00, 0xa3, 0xd7,
 		0x0a, 0x00, 0xa3, 0xd1, 0xec, 0x01, 0x47, 0xae, 0x05 } },
-	{ 25000, BANDWIDTH_6_MHZ, { 0x02, 0x31, 0xbc, 0xb5, 0x04, 0x63,
+	{ 25000000, 6000000, { 0x02, 0x31, 0xbc, 0xb5, 0x04, 0x63,
 		0x79, 0x1b, 0x00, 0x8c, 0x73, 0x91, 0x00, 0x8c, 0x6f,
 		0x2d, 0x00, 0x8c, 0x6a, 0xca, 0x01, 0x18, 0xde, 0x17 } },
 };
 
 /* QPSK SNR lookup table */
-static struct snr_table qpsk_snr_table[] = {
+static const struct af9013_snr qpsk_snr_lut[] = {
+	{ 0x000000,  0 },
 	{ 0x0b4771,  0 },
 	{ 0x0c1aed,  1 },
 	{ 0x0d0d27,  2 },
···
 };
 
 /* QAM16 SNR lookup table */
-static struct snr_table qam16_snr_table[] = {
+static const struct af9013_snr qam16_snr_lut[] = {
+	{ 0x000000,  0 },
 	{ 0x05eb62,  5 },
 	{ 0x05fecf,  6 },
 	{ 0x060b80,  7 },
···
 };
 
 /* QAM64 SNR lookup table */
-static struct snr_table qam64_snr_table[] = {
+static const struct af9013_snr qam64_snr_lut[] = {
+	{ 0x000000,  0 },
 	{ 0x03109b, 12 },
 	{ 0x0310d4, 13 },
 	{ 0x031920, 14 },
···
 	{ 0xffffff, 27 },
 };
 
-static struct regdesc ofsm_init[] = {
+static const struct af9013_reg_bit ofsm_init[] = {
 	{ 0xd73a, 0, 8, 0xa1 },
 	{ 0xd73b, 0, 8, 0x1f },
 	{ 0xd73c, 4, 4, 0x0a },
···
 
 /* Panasonic ENV77H11D5 tuner init
    AF9013_TUNER_ENV77H11D5 = 129 */
-static struct regdesc tuner_init_env77h11d5[] = {
+static const struct af9013_reg_bit tuner_init_env77h11d5[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x03 },
 	{ 0x9bbe, 0, 8, 0x01 },
···
 
 /* Microtune MT2060 tuner init
    AF9013_TUNER_MT2060     = 130 */
-static struct regdesc tuner_init_mt2060[] = {
+static const struct af9013_reg_bit tuner_init_mt2060[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x07 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 
 /* Microtune MT2060 tuner init
    AF9013_TUNER_MT2060_2   = 147 */
-static struct regdesc tuner_init_mt2060_2[] = {
+static const struct af9013_reg_bit tuner_init_mt2060_2[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x06 },
 	{ 0x9bbe, 0, 8, 0x01 },
···
 
 /* MaxLinear MXL5003 tuner init
    AF9013_TUNER_MXL5003D   =   3 */
-static struct regdesc tuner_init_mxl5003d[] = {
+static const struct af9013_reg_bit tuner_init_mxl5003d[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x09 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
    AF9013_TUNER_MXL5005D   =  13
    AF9013_TUNER_MXL5005R   =  30
    AF9013_TUNER_MXL5007T   = 177 */
-static struct regdesc tuner_init_mxl5005[] = {
+static const struct af9013_reg_bit tuner_init_mxl5005[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x07 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 /* Quantek QT1010 tuner init
    AF9013_TUNER_QT1010     = 134
    AF9013_TUNER_QT1010A    = 162 */
-static struct regdesc tuner_init_qt1010[] = {
+static const struct af9013_reg_bit tuner_init_qt1010[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x09 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 
 /* Freescale MC44S803 tuner init
    AF9013_TUNER_MC44S803   = 133 */
-static struct regdesc tuner_init_mc44s803[] = {
+static const struct af9013_reg_bit tuner_init_mc44s803[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x06 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 
 /* unknown, probably for tin can tuner, tuner init
    AF9013_TUNER_UNKNOWN   = 140 */
-static struct regdesc tuner_init_unknown[] = {
+static const struct af9013_reg_bit tuner_init_unknown[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x02 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 /* NXP TDA18271 & TDA18218 tuner init
    AF9013_TUNER_TDA18271   = 156
    AF9013_TUNER_TDA18218   = 179 */
-static struct regdesc tuner_init_tda18271[] = {
+static const struct af9013_reg_bit tuner_init_tda18271[] = {
 	{ 0x9bd5, 0, 8, 0x01 },
 	{ 0x9bd6, 0, 8, 0x04 },
 	{ 0xd1a0, 1, 1, 0x01 },
···
 	{ 0x9bee, 0, 1, 0x01 },
 };
 
-#endif /* _AF9013_PRIV_ */
+#endif /* AF9013_PRIV_H */