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authorKozlov Sergey <serjk@netup.ru>2015-07-28 11:33:01 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-11 14:54:17 -0300
commitdacf9ce80b41667abb51a2a751a2dfe30e1f9a2b (patch)
tree5151ee512947524e288c8d4edf130ca66fc4ac38 /drivers/media/dvb-frontends
parenta5d32b358254ff90f5dcd7ae2798b5d40503013a (diff)
[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: Kozlov Sergey <serjk@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/Kconfig7
-rw-r--r--drivers/media/dvb-frontends/Makefile1
-rw-r--r--drivers/media/dvb-frontends/ascot2e.c540
-rw-r--r--drivers/media/dvb-frontends/ascot2e.h58
4 files changed, 606 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig
index 522e7dd9af3d..ec628c482cdf 100644
--- a/drivers/media/dvb-frontends/Kconfig
+++ b/drivers/media/dvb-frontends/Kconfig
@@ -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
diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile
index c1a820f15901..0a1bf69cb79a 100644
--- a/drivers/media/dvb-frontends/Makefile
+++ b/drivers/media/dvb-frontends/Makefile
@@ -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
diff --git a/drivers/media/dvb-frontends/ascot2e.c b/drivers/media/dvb-frontends/ascot2e.c
new file mode 100644
index 000000000000..ae7e463c2f9b
--- /dev/null
+++ b/drivers/media/dvb-frontends/ascot2e.c
@@ -0,0 +1,540 @@
+/*
+ * 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");
diff --git a/drivers/media/dvb-frontends/ascot2e.h b/drivers/media/dvb-frontends/ascot2e.h
new file mode 100644
index 000000000000..6da4ae6d6cc3
--- /dev/null
+++ b/drivers/media/dvb-frontends/ascot2e.h
@@ -0,0 +1,58 @@
+/*
+ * 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

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