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Commit dacf9ce8 authored by Kozlov Sergey's avatar Kozlov Sergey Committed by Mauro Carvalho Chehab
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[media] ascot2e: Sony Ascot2e DVB-C/T/T2 tuner driver 



Add DVB-T/T2/C frontend driver for Sony Ascot2e (CXD2861ER) chip.

Signed-off-by: default avatarKozlov Sergey <serjk@netup.ru>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent a5d32b35

MAINTAINERS

+9 −0
Original line number Diff line number Diff line
@@ -6601,6 +6601,15 @@ S: Supported 
F:	Documentation/devicetree/bindings/media/renesas,vsp1.txt

F:	drivers/media/platform/vsp1/



MEDIA DRIVERS FOR ASCOT2E

M:	Sergey Kozlov <serjk@netup.ru>

L:	linux-media@vger.kernel.org

W:	http://linuxtv.org

W:	http://netup.tv/

T:	git git://linuxtv.org/media_tree.git

S:	Supported

F:	drivers/media/dvb-frontends/ascot2e*



MEDIA DRIVERS FOR HORUS3A

M:	Sergey Kozlov <serjk@netup.ru>

L:	linux-media@vger.kernel.org

drivers/media/dvb-frontends/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -823,6 +823,13 @@ config DVB_HORUS3A 
	help

	  Say Y when you want to support this frontend.



config DVB_ASCOT2E

	tristate "Sony Ascot2E tuner"

	depends on DVB_CORE && I2C

	default m if !MEDIA_SUBDRV_AUTOSELECT

	help

	  Say Y when you want to support this frontend.



comment "Tools to develop new frontends"



config DVB_DUMMY_FE

drivers/media/dvb-frontends/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -119,3 +119,4 @@ obj-$(CONFIG_DVB_AF9033) += af9033.o 
obj-$(CONFIG_DVB_AS102_FE) += as102_fe.o

obj-$(CONFIG_DVB_TC90522) += tc90522.o

obj-$(CONFIG_DVB_HORUS3A) += horus3a.o

obj-$(CONFIG_DVB_ASCOT2E) += ascot2e.o

drivers/media/dvb-frontends/ascot2e.c

0 → 100644
+540 −0
Original line number Diff line number Diff line 
/*

 * ascot2e.c

 *

 * Sony Ascot3E DVB-T/T2/C/C2 tuner driver

 *

 * Copyright 2012 Sony Corporation

 * Copyright (C) 2014 NetUP Inc.

 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>

 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>

 *

 * 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.

  */



#include <linux/slab.h>

#include <linux/module.h>

#include <linux/dvb/frontend.h>

#include <linux/types.h>

#include "ascot2e.h"

#include "dvb_frontend.h"



enum ascot2e_state {

	STATE_UNKNOWN,

	STATE_SLEEP,

	STATE_ACTIVE

};



struct ascot2e_priv {

	u32			frequency;

	u8			i2c_address;

	struct i2c_adapter	*i2c;

	enum ascot2e_state	state;

	void			*set_tuner_data;

	int			(*set_tuner)(void *, int);

};



enum ascot2e_tv_system_t {

	ASCOT2E_DTV_DVBT_5,

	ASCOT2E_DTV_DVBT_6,

	ASCOT2E_DTV_DVBT_7,

	ASCOT2E_DTV_DVBT_8,

	ASCOT2E_DTV_DVBT2_1_7,

	ASCOT2E_DTV_DVBT2_5,

	ASCOT2E_DTV_DVBT2_6,

	ASCOT2E_DTV_DVBT2_7,

	ASCOT2E_DTV_DVBT2_8,

	ASCOT2E_DTV_DVBC_6,

	ASCOT2E_DTV_DVBC_8,

	ASCOT2E_DTV_DVBC2_6,

	ASCOT2E_DTV_DVBC2_8,

	ASCOT2E_DTV_UNKNOWN

};



struct ascot2e_band_sett {

	u8	if_out_sel;

	u8	agc_sel;

	u8	mix_oll;

	u8	rf_gain;

	u8	if_bpf_gc;

	u8	fif_offset;

	u8	bw_offset;

	u8	bw;

	u8	rf_oldet;

	u8	if_bpf_f0;

};



#define ASCOT2E_AUTO		0xff

#define ASCOT2E_OFFSET(ofs)	((u8)(ofs) & 0x1F)

#define ASCOT2E_BW_6		0x00

#define ASCOT2E_BW_7		0x01

#define ASCOT2E_BW_8		0x02

#define ASCOT2E_BW_1_7		0x03



static struct ascot2e_band_sett ascot2e_sett[] = {

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	ASCOT2E_OFFSET(-10), ASCOT2E_OFFSET(-16), ASCOT2E_BW_1_7, 0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,

	  ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,

	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-8), ASCOT2E_BW_6,  0x09, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,

	  ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(-1), ASCOT2E_BW_8,  0x09, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,

	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_6,  0x09, 0x00 },

	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,

	  ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(2),  ASCOT2E_BW_8,  0x09, 0x00 }

};



static void ascot2e_i2c_debug(struct ascot2e_priv *priv,

			      u8 reg, u8 write, const u8 *data, u32 len)

{

	dev_dbg(&priv->i2c->dev, "ascot2e: I2C %s reg 0x%02x size %d\n",

		(write == 0 ? "read" : "write"), reg, len);

	print_hex_dump_bytes("ascot2e: I2C data: ",

		DUMP_PREFIX_OFFSET, data, len);

}



static int ascot2e_write_regs(struct ascot2e_priv *priv,

			      u8 reg, const u8 *data, u32 len)

{

	int ret;

	u8 buf[len+1];

	struct i2c_msg msg[1] = {

		{

			.addr = priv->i2c_address,

			.flags = 0,

			.len = sizeof(buf),

			.buf = buf,

		}

	};



	ascot2e_i2c_debug(priv, reg, 1, data, len);

	buf[0] = reg;

	memcpy(&buf[1], data, len);

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

	if (ret >= 0 && ret != 1)

		ret = -EREMOTEIO;

	if (ret < 0) {

		dev_warn(&priv->i2c->dev,

			"%s: i2c wr failed=%d reg=%02x len=%d\n",

			KBUILD_MODNAME, ret, reg, len);

		return ret;

	}

	return 0;

}



static int ascot2e_write_reg(struct ascot2e_priv *priv, u8 reg, u8 val)

{

	return ascot2e_write_regs(priv, reg, &val, 1);

}



static int ascot2e_read_regs(struct ascot2e_priv *priv,

			     u8 reg, u8 *val, u32 len)

{

	int ret;

	struct i2c_msg msg[2] = {

		{

			.addr = priv->i2c_address,

			.flags = 0,

			.len = 1,

			.buf = &reg,

		}, {

			.addr = priv->i2c_address,

			.flags = I2C_M_RD,

			.len = len,

			.buf = val,

		}

	};



	ret = i2c_transfer(priv->i2c, &msg[0], 1);

	if (ret >= 0 && ret != 1)

		ret = -EREMOTEIO;

	if (ret < 0) {

		dev_warn(&priv->i2c->dev,

			"%s: I2C rw failed=%d addr=%02x reg=%02x\n",

			KBUILD_MODNAME, ret, priv->i2c_address, reg);

		return ret;

	}

	ret = i2c_transfer(priv->i2c, &msg[1], 1);

	if (ret >= 0 && ret != 1)

		ret = -EREMOTEIO;

	if (ret < 0) {

		dev_warn(&priv->i2c->dev,

			"%s: i2c rd failed=%d addr=%02x reg=%02x\n",

			KBUILD_MODNAME, ret, priv->i2c_address, reg);

		return ret;

	}

	ascot2e_i2c_debug(priv, reg, 0, val, len);

	return 0;

}



static int ascot2e_read_reg(struct ascot2e_priv *priv, u8 reg, u8 *val)

{

	return ascot2e_read_regs(priv, reg, val, 1);

}



static int ascot2e_set_reg_bits(struct ascot2e_priv *priv,

				u8 reg, u8 data, u8 mask)

{

	int res;

	u8 rdata;



	if (mask != 0xff) {

		res = ascot2e_read_reg(priv, reg, &rdata);

		if (res != 0)

			return res;

		data = ((data & mask) | (rdata & (mask ^ 0xFF)));

	}

	return ascot2e_write_reg(priv, reg, data);

}



static int ascot2e_enter_power_save(struct ascot2e_priv *priv)

{

	u8 data[2];



	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);

	if (priv->state == STATE_SLEEP)

		return 0;

	data[0] = 0x00;

	data[1] = 0x04;

	ascot2e_write_regs(priv, 0x14, data, 2);

	ascot2e_write_reg(priv, 0x50, 0x01);

	priv->state = STATE_SLEEP;

	return 0;

}



static int ascot2e_leave_power_save(struct ascot2e_priv *priv)

{

	u8 data[2] = { 0xFB, 0x0F };



	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);

	if (priv->state == STATE_ACTIVE)

		return 0;

	ascot2e_write_regs(priv, 0x14, data, 2);

	ascot2e_write_reg(priv, 0x50, 0x00);

	priv->state = STATE_ACTIVE;

	return 0;

}



static int ascot2e_init(struct dvb_frontend *fe)

{

	struct ascot2e_priv *priv = fe->tuner_priv;



	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);

	return ascot2e_leave_power_save(priv);

}



static int ascot2e_release(struct dvb_frontend *fe)

{

	struct ascot2e_priv *priv = fe->tuner_priv;



	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);

	kfree(fe->tuner_priv);

	fe->tuner_priv = NULL;

	return 0;

}



static int ascot2e_sleep(struct dvb_frontend *fe)

{

	struct ascot2e_priv *priv = fe->tuner_priv;



	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);

	ascot2e_enter_power_save(priv);

	return 0;

}



static enum ascot2e_tv_system_t ascot2e_get_tv_system(struct dvb_frontend *fe)

{

	enum ascot2e_tv_system_t system = ASCOT2E_DTV_UNKNOWN;

	struct dtv_frontend_properties *p = &fe->dtv_property_cache;

	struct ascot2e_priv *priv = fe->tuner_priv;



	if (p->delivery_system == SYS_DVBT) {

		if (p->bandwidth_hz <= 5000000)

			system = ASCOT2E_DTV_DVBT_5;

		else if (p->bandwidth_hz <= 6000000)

			system = ASCOT2E_DTV_DVBT_6;

		else if (p->bandwidth_hz <= 7000000)

			system = ASCOT2E_DTV_DVBT_7;

		else if (p->bandwidth_hz <= 8000000)

			system = ASCOT2E_DTV_DVBT_8;

		else {

			system = ASCOT2E_DTV_DVBT_8;

			p->bandwidth_hz = 8000000;

		}

	} else if (p->delivery_system == SYS_DVBT2) {

		if (p->bandwidth_hz <= 5000000)

			system = ASCOT2E_DTV_DVBT2_5;

		else if (p->bandwidth_hz <= 6000000)

			system = ASCOT2E_DTV_DVBT2_6;

		else if (p->bandwidth_hz <= 7000000)

			system = ASCOT2E_DTV_DVBT2_7;

		else if (p->bandwidth_hz <= 8000000)

			system = ASCOT2E_DTV_DVBT2_8;

		else {

			system = ASCOT2E_DTV_DVBT2_8;

			p->bandwidth_hz = 8000000;

		}

	} else if (p->delivery_system == SYS_DVBC_ANNEX_A) {

		if (p->bandwidth_hz <= 6000000)

			system = ASCOT2E_DTV_DVBC_6;

		else if (p->bandwidth_hz <= 8000000)

			system = ASCOT2E_DTV_DVBC_8;

	}

	dev_dbg(&priv->i2c->dev,

		"%s(): ASCOT2E DTV system %d (delsys %d, bandwidth %d)\n",

		__func__, (int)system, p->delivery_system, p->bandwidth_hz);

	return system;

}



static int ascot2e_set_params(struct dvb_frontend *fe)

{

	u8 data[10];

	u32 frequency;

	enum ascot2e_tv_system_t tv_system;

	struct dtv_frontend_properties *p = &fe->dtv_property_cache;

	struct ascot2e_priv *priv = fe->tuner_priv;



	dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz\n",

		__func__, p->frequency / 1000);

	tv_system = ascot2e_get_tv_system(fe);



	if (tv_system == ASCOT2E_DTV_UNKNOWN) {

		dev_dbg(&priv->i2c->dev, "%s(): unknown DTV system\n",

			__func__);

		return -EINVAL;

	}

	if (priv->set_tuner)

		priv->set_tuner(priv->set_tuner_data, 1);

	frequency = roundup(p->frequency / 1000, 25);

	if (priv->state == STATE_SLEEP)

		ascot2e_leave_power_save(priv);



	/* IF_OUT_SEL / AGC_SEL setting */

	data[0] = 0x00;

	if (ascot2e_sett[tv_system].agc_sel != ASCOT2E_AUTO) {

		/* AGC pin setting from parameter table */

		data[0] |= (u8)(

			(ascot2e_sett[tv_system].agc_sel & 0x03) << 3);

	}

	if (ascot2e_sett[tv_system].if_out_sel != ASCOT2E_AUTO) {

		/* IFOUT pin setting from parameter table */

		data[0] |= (u8)(

			(ascot2e_sett[tv_system].if_out_sel & 0x01) << 2);

	}

	/* Set bit[4:2] only */

	ascot2e_set_reg_bits(priv, 0x05, data[0], 0x1c);

	/* 0x06 - 0x0F */

	/* REF_R setting (0x06) */

	if (tv_system == ASCOT2E_DTV_DVBC_6 ||

			tv_system == ASCOT2E_DTV_DVBC_8) {

		/* xtal, xtal*2 */

		data[0] = (frequency > 500000) ? 16 : 32;

	} else {

		/* xtal/8, xtal/4 */

		data[0] = (frequency > 500000) ? 2 : 4;

	}

	/* XOSC_SEL=100uA */

	data[1] = 0x04;

	/* KBW setting (0x08), KC0 setting (0x09), KC1 setting (0x0A) */

	if (tv_system == ASCOT2E_DTV_DVBC_6 ||

			tv_system == ASCOT2E_DTV_DVBC_8) {

		data[2] = 18;

		data[3] = 120;

		data[4] = 20;

	} else {

		data[2] = 48;

		data[3] = 10;

		data[4] = 30;

	}

	/* ORDER/R2_RANGE/R2_BANK/C2_BANK setting (0x0B) */

	if (tv_system == ASCOT2E_DTV_DVBC_6 ||

			tv_system == ASCOT2E_DTV_DVBC_8)

		data[5] = (frequency > 500000) ? 0x08 : 0x0c;

	else

		data[5] = (frequency > 500000) ? 0x30 : 0x38;

	/* Set MIX_OLL (0x0C) value from parameter table */

	data[6] = ascot2e_sett[tv_system].mix_oll;

	/* Set RF_GAIN (0x0D) setting from parameter table */

	if (ascot2e_sett[tv_system].rf_gain == ASCOT2E_AUTO) {

		/* RF_GAIN auto control enable */

		ascot2e_write_reg(priv, 0x4E, 0x01);

		/* RF_GAIN Default value */

		data[7] = 0x00;

	} else {

		/* RF_GAIN auto control disable */

		ascot2e_write_reg(priv, 0x4E, 0x00);

		data[7] = ascot2e_sett[tv_system].rf_gain;

	}

	/* Set IF_BPF_GC/FIF_OFFSET (0x0E) value from parameter table */

	data[8] = (u8)((ascot2e_sett[tv_system].fif_offset << 3) |

		(ascot2e_sett[tv_system].if_bpf_gc & 0x07));

	/* Set BW_OFFSET (0x0F) value from parameter table */

	data[9] = ascot2e_sett[tv_system].bw_offset;

	ascot2e_write_regs(priv, 0x06, data, 10);

	/*

	 * 0x45 - 0x47

	 * LNA optimization setting

	 * RF_LNA_DIST1-5, RF_LNA_CM

	 */

	if (tv_system == ASCOT2E_DTV_DVBC_6 ||

			tv_system == ASCOT2E_DTV_DVBC_8) {

		data[0] = 0x0F;

		data[1] = 0x00;

		data[2] = 0x01;

	} else {

		data[0] = 0x0F;

		data[1] = 0x00;

		data[2] = 0x03;

	}

	ascot2e_write_regs(priv, 0x45, data, 3);

	/* 0x49 - 0x4A

	 Set RF_OLDET_ENX/RF_OLDET_OLL value from parameter table */

	data[0] = ascot2e_sett[tv_system].rf_oldet;

	/* Set IF_BPF_F0 value from parameter table */

	data[1] = ascot2e_sett[tv_system].if_bpf_f0;

	ascot2e_write_regs(priv, 0x49, data, 2);

	/*

	 * Tune now

	 * RFAGC fast mode / RFAGC auto control enable

	 * (set bit[7], bit[5:4] only)

	 * vco_cal = 1, set MIX_OL_CPU_EN

	 */

	ascot2e_set_reg_bits(priv, 0x0c, 0x90, 0xb0);

	/* Logic wake up, CPU wake up */

	data[0] = 0xc4;

	data[1] = 0x40;

	ascot2e_write_regs(priv, 0x03, data, 2);

	/* 0x10 - 0x14 */

	data[0] = (u8)(frequency & 0xFF);         /* 0x10: FRF_L */

	data[1] = (u8)((frequency >> 8) & 0xFF);  /* 0x11: FRF_M */

	data[2] = (u8)((frequency >> 16) & 0x0F); /* 0x12: FRF_H (bit[3:0]) */

	/* 0x12: BW (bit[5:4]) */

	data[2] |= (u8)(ascot2e_sett[tv_system].bw << 4);

	data[3] = 0xFF; /* 0x13: VCO calibration enable */

	data[4] = 0xFF; /* 0x14: Analog block enable */

	/* Tune (Burst write) */

	ascot2e_write_regs(priv, 0x10, data, 5);

	msleep(50);

	/* CPU deep sleep */

	ascot2e_write_reg(priv, 0x04, 0x00);

	/* Logic sleep */

	ascot2e_write_reg(priv, 0x03, 0xC0);

	/* RFAGC normal mode (set bit[5:4] only) */

	ascot2e_set_reg_bits(priv, 0x0C, 0x00, 0x30);

	priv->frequency = frequency;

	return 0;

}



static int ascot2e_get_frequency(struct dvb_frontend *fe, u32 *frequency)

{

	struct ascot2e_priv *priv = fe->tuner_priv;



	*frequency = priv->frequency * 1000;

	return 0;

}



static struct dvb_tuner_ops ascot2e_tuner_ops = {

	.info = {

		.name = "Sony ASCOT2E",

		.frequency_min = 1000000,

		.frequency_max = 1200000000,

		.frequency_step = 25000,

	},

	.init = ascot2e_init,

	.release = ascot2e_release,

	.sleep = ascot2e_sleep,

	.set_params = ascot2e_set_params,

	.get_frequency = ascot2e_get_frequency,

};



struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,

				    const struct ascot2e_config *config,

				    struct i2c_adapter *i2c)

{

	u8 data[4];

	struct ascot2e_priv *priv = NULL;



	priv = kzalloc(sizeof(struct ascot2e_priv), GFP_KERNEL);

	if (priv == NULL)

		return NULL;

	priv->i2c_address = (config->i2c_address >> 1);

	priv->i2c = i2c;

	priv->set_tuner_data = config->set_tuner_priv;

	priv->set_tuner = config->set_tuner_callback;



	if (fe->ops.i2c_gate_ctrl)

		fe->ops.i2c_gate_ctrl(fe, 1);



	/* 16 MHz xTal frequency */

	data[0] = 16;

	/* VCO current setting */

	data[1] = 0x06;

	/* Logic wake up, CPU boot */

	data[2] = 0xC4;

	data[3] = 0x40;

	ascot2e_write_regs(priv, 0x01, data, 4);

	/* RFVGA optimization setting (RF_DIST0 - RF_DIST2) */

	data[0] = 0x10;

	data[1] = 0x3F;

	data[2] = 0x25;

	ascot2e_write_regs(priv, 0x22, data, 3);

	/* PLL mode setting */

	ascot2e_write_reg(priv, 0x28, 0x1e);

	/* RSSI setting */

	ascot2e_write_reg(priv, 0x59, 0x04);

	/* TODO check CPU HW error state here */

	msleep(80);

	/* Xtal oscillator current control setting */

	ascot2e_write_reg(priv, 0x4c, 0x01);

	/* XOSC_SEL=100uA */

	ascot2e_write_reg(priv, 0x07, 0x04);

	/* CPU deep sleep */

	ascot2e_write_reg(priv, 0x04, 0x00);

	/* Logic sleep */

	ascot2e_write_reg(priv, 0x03, 0xc0);

	/* Power save setting */

	data[0] = 0x00;

	data[1] = 0x04;

	ascot2e_write_regs(priv, 0x14, data, 2);

	ascot2e_write_reg(priv, 0x50, 0x01);

	priv->state = STATE_SLEEP;



	if (fe->ops.i2c_gate_ctrl)

		fe->ops.i2c_gate_ctrl(fe, 0);



	memcpy(&fe->ops.tuner_ops, &ascot2e_tuner_ops,

				sizeof(struct dvb_tuner_ops));

	fe->tuner_priv = priv;

	dev_info(&priv->i2c->dev,

		"Sony ASCOT2E attached on addr=%x at I2C adapter %p\n",

		priv->i2c_address, priv->i2c);

	return fe;

}

EXPORT_SYMBOL(ascot2e_attach);



MODULE_DESCRIPTION("Sony ASCOT2E terr/cab tuner driver");

MODULE_AUTHOR("info@netup.ru");

MODULE_LICENSE("GPL");

drivers/media/dvb-frontends/ascot2e.h

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Original line number Diff line number Diff line 
/*

 * ascot2e.h

 *

 * Sony Ascot3E DVB-T/T2/C/C2 tuner driver

 *

 * Copyright 2012 Sony Corporation

 * Copyright (C) 2014 NetUP Inc.

 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>

 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>

 *

 * 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.

  */



#ifndef __DVB_ASCOT2E_H__

#define __DVB_ASCOT2E_H__



#include <linux/kconfig.h>

#include <linux/dvb/frontend.h>

#include <linux/i2c.h>



/**

 * struct ascot2e_config - the configuration of Ascot2E tuner driver

 * @i2c_address:	I2C address of the tuner

 * @xtal_freq_mhz:	Oscillator frequency, MHz

 * @set_tuner_priv:	Callback function private context

 * @set_tuner_callback:	Callback function that notifies the parent driver

 *			which tuner is active now

 */

struct ascot2e_config {

	u8	i2c_address;

	u8	xtal_freq_mhz;

	void	*set_tuner_priv;

	int	(*set_tuner_callback)(void *, int);

};



#if IS_REACHABLE(CONFIG_DVB_ASCOT2E)

extern struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,

					const struct ascot2e_config *config,

					struct i2c_adapter *i2c);

#else

static inline struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,

					const struct ascot2e_config *config,

					struct i2c_adapter *i2c)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);

	return NULL;

}

#endif



#endif