Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 1531 insertions, 0 deletions

diff --git a/kernel/drivers/media/tuners/tuner-xc2028.c b/kernel/drivers/media/tuners/tuner-xc2028.c
new file mode 100644
index 000000000..d12f5e4ad
--- /dev/null
+++ b/kernel/drivers/media/tuners/tuner-xc2028.c
@@ -0,0 +1,1531 @@
+/* tuner-xc2028
+ *
+ * Copyright (c) 2007-2008 Mauro Carvalho Chehab (mchehab@infradead.org)
+ *
+ * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com)
+ *       - frontend interface
+ *
+ * This code is placed under the terms of the GNU General Public License v2
+ */
+
+#include <linux/i2c.h>
+#include <asm/div64.h>
+#include <linux/firmware.h>
+#include <linux/videodev2.h>
+#include <linux/delay.h>
+#include <media/tuner.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <asm/unaligned.h>
+#include "tuner-i2c.h"
+#include "tuner-xc2028.h"
+#include "tuner-xc2028-types.h"
+
+#include <linux/dvb/frontend.h>
+#include "dvb_frontend.h"
+
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  80
+
+/* Registers (Write-only) */
+#define XREG_INIT         0x00
+#define XREG_RF_FREQ      0x02
+#define XREG_POWER_DOWN   0x08
+
+/* Registers (Read-only) */
+#define XREG_FREQ_ERROR   0x01
+#define XREG_LOCK         0x02
+#define XREG_VERSION      0x04
+#define XREG_PRODUCT_ID   0x08
+#define XREG_HSYNC_FREQ   0x10
+#define XREG_FRAME_LINES  0x20
+#define XREG_SNR          0x40
+
+#define XREG_ADC_ENV      0x0100
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+static int no_poweroff;
+module_param(no_poweroff, int, 0644);
+MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n"
+	"1 keep device energized and with tuner ready all the times.\n"
+	"  Faster, but consumes more power and keeps the device hotter\n");
+
+static char audio_std[8];
+module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
+MODULE_PARM_DESC(audio_std,
+	"Audio standard. XC3028 audio decoder explicitly "
+	"needs to know what audio\n"
+	"standard is needed for some video standards with audio A2 or NICAM.\n"
+	"The valid values are:\n"
+	"A2\n"
+	"A2/A\n"
+	"A2/B\n"
+	"NICAM\n"
+	"NICAM/A\n"
+	"NICAM/B\n");
+
+static char firmware_name[30];
+module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
+MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the "
+				"default firmware name\n");
+
+static LIST_HEAD(hybrid_tuner_instance_list);
+static DEFINE_MUTEX(xc2028_list_mutex);
+
+/* struct for storing firmware table */
+struct firmware_description {
+	unsigned int  type;
+	v4l2_std_id   id;
+	__u16         int_freq;
+	unsigned char *ptr;
+	unsigned int  size;
+};
+
+struct firmware_properties {
+	unsigned int	type;
+	v4l2_std_id	id;
+	v4l2_std_id	std_req;
+	__u16		int_freq;
+	unsigned int	scode_table;
+	int 		scode_nr;
+};
+
+enum xc2028_state {
+	XC2028_NO_FIRMWARE = 0,
+	XC2028_WAITING_FIRMWARE,
+	XC2028_ACTIVE,
+	XC2028_SLEEP,
+	XC2028_NODEV,
+};
+
+struct xc2028_data {
+	struct list_head        hybrid_tuner_instance_list;
+	struct tuner_i2c_props  i2c_props;
+	__u32			frequency;
+
+	enum xc2028_state	state;
+	const char		*fname;
+
+	struct firmware_description *firm;
+	int			firm_size;
+	__u16			firm_version;
+
+	__u16			hwmodel;
+	__u16			hwvers;
+
+	struct xc2028_ctrl	ctrl;
+
+	struct firmware_properties cur_fw;
+
+	struct mutex lock;
+};
+
+#define i2c_send(priv, buf, size) ({					\
+	int _rc;							\
+	_rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size);		\
+	if (size != _rc)						\
+		tuner_info("i2c output error: rc = %d (should be %d)\n",\
+			   _rc, (int)size);				\
+	if (priv->ctrl.msleep)						\
+		msleep(priv->ctrl.msleep);				\
+	_rc;								\
+})
+
+#define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({		\
+	int _rc;							\
+	_rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize,	\
+				       ibuf, isize);			\
+	if (isize != _rc)						\
+		tuner_err("i2c input error: rc = %d (should be %d)\n",	\
+			   _rc, (int)isize); 				\
+	if (priv->ctrl.msleep)						\
+		msleep(priv->ctrl.msleep);				\
+	_rc;								\
+})
+
+#define send_seq(priv, data...)	({					\
+	static u8 _val[] = data;					\
+	int _rc;							\
+	if (sizeof(_val) !=						\
+			(_rc = tuner_i2c_xfer_send(&priv->i2c_props,	\
+						_val, sizeof(_val)))) {	\
+		tuner_err("Error on line %d: %d\n", __LINE__, _rc);	\
+	} else if (priv->ctrl.msleep)					\
+		msleep(priv->ctrl.msleep);				\
+	_rc;								\
+})
+
+static int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
+{
+	unsigned char buf[2];
+	unsigned char ibuf[2];
+
+	tuner_dbg("%s %04x called\n", __func__, reg);
+
+	buf[0] = reg >> 8;
+	buf[1] = (unsigned char) reg;
+
+	if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2)
+		return -EIO;
+
+	*val = (ibuf[1]) | (ibuf[0] << 8);
+	return 0;
+}
+
+#define dump_firm_type(t) 	dump_firm_type_and_int_freq(t, 0)
+static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
+{
+	if (type & BASE)
+		printk("BASE ");
+	if (type & INIT1)
+		printk("INIT1 ");
+	if (type & F8MHZ)
+		printk("F8MHZ ");
+	if (type & MTS)
+		printk("MTS ");
+	if (type & D2620)
+		printk("D2620 ");
+	if (type & D2633)
+		printk("D2633 ");
+	if (type & DTV6)
+		printk("DTV6 ");
+	if (type & QAM)
+		printk("QAM ");
+	if (type & DTV7)
+		printk("DTV7 ");
+	if (type & DTV78)
+		printk("DTV78 ");
+	if (type & DTV8)
+		printk("DTV8 ");
+	if (type & FM)
+		printk("FM ");
+	if (type & INPUT1)
+		printk("INPUT1 ");
+	if (type & LCD)
+		printk("LCD ");
+	if (type & NOGD)
+		printk("NOGD ");
+	if (type & MONO)
+		printk("MONO ");
+	if (type & ATSC)
+		printk("ATSC ");
+	if (type & IF)
+		printk("IF ");
+	if (type & LG60)
+		printk("LG60 ");
+	if (type & ATI638)
+		printk("ATI638 ");
+	if (type & OREN538)
+		printk("OREN538 ");
+	if (type & OREN36)
+		printk("OREN36 ");
+	if (type & TOYOTA388)
+		printk("TOYOTA388 ");
+	if (type & TOYOTA794)
+		printk("TOYOTA794 ");
+	if (type & DIBCOM52)
+		printk("DIBCOM52 ");
+	if (type & ZARLINK456)
+		printk("ZARLINK456 ");
+	if (type & CHINA)
+		printk("CHINA ");
+	if (type & F6MHZ)
+		printk("F6MHZ ");
+	if (type & INPUT2)
+		printk("INPUT2 ");
+	if (type & SCODE)
+		printk("SCODE ");
+	if (type & HAS_IF)
+		printk("HAS_IF_%d ", int_freq);
+}
+
+static  v4l2_std_id parse_audio_std_option(void)
+{
+	if (strcasecmp(audio_std, "A2") == 0)
+		return V4L2_STD_A2;
+	if (strcasecmp(audio_std, "A2/A") == 0)
+		return V4L2_STD_A2_A;
+	if (strcasecmp(audio_std, "A2/B") == 0)
+		return V4L2_STD_A2_B;
+	if (strcasecmp(audio_std, "NICAM") == 0)
+		return V4L2_STD_NICAM;
+	if (strcasecmp(audio_std, "NICAM/A") == 0)
+		return V4L2_STD_NICAM_A;
+	if (strcasecmp(audio_std, "NICAM/B") == 0)
+		return V4L2_STD_NICAM_B;
+
+	return 0;
+}
+
+static int check_device_status(struct xc2028_data *priv)
+{
+	switch (priv->state) {
+	case XC2028_NO_FIRMWARE:
+	case XC2028_WAITING_FIRMWARE:
+		return -EAGAIN;
+	case XC2028_ACTIVE:
+		return 1;
+	case XC2028_SLEEP:
+		return 0;
+	case XC2028_NODEV:
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void free_firmware(struct xc2028_data *priv)
+{
+	int i;
+	tuner_dbg("%s called\n", __func__);
+
+	if (!priv->firm)
+		return;
+
+	for (i = 0; i < priv->firm_size; i++)
+		kfree(priv->firm[i].ptr);
+
+	kfree(priv->firm);
+
+	priv->firm = NULL;
+	priv->firm_size = 0;
+	priv->state = XC2028_NO_FIRMWARE;
+
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+}
+
+static int load_all_firmwares(struct dvb_frontend *fe,
+			      const struct firmware *fw)
+{
+	struct xc2028_data    *priv = fe->tuner_priv;
+	const unsigned char   *p, *endp;
+	int                   rc = 0;
+	int		      n, n_array;
+	char		      name[33];
+
+	tuner_dbg("%s called\n", __func__);
+
+	p = fw->data;
+	endp = p + fw->size;
+
+	if (fw->size < sizeof(name) - 1 + 2 + 2) {
+		tuner_err("Error: firmware file %s has invalid size!\n",
+			  priv->fname);
+		goto corrupt;
+	}
+
+	memcpy(name, p, sizeof(name) - 1);
+	name[sizeof(name) - 1] = 0;
+	p += sizeof(name) - 1;
+
+	priv->firm_version = get_unaligned_le16(p);
+	p += 2;
+
+	n_array = get_unaligned_le16(p);
+	p += 2;
+
+	tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n",
+		   n_array, priv->fname, name,
+		   priv->firm_version >> 8, priv->firm_version & 0xff);
+
+	priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);
+	if (priv->firm == NULL) {
+		tuner_err("Not enough memory to load firmware file.\n");
+		rc = -ENOMEM;
+		goto err;
+	}
+	priv->firm_size = n_array;
+
+	n = -1;
+	while (p < endp) {
+		__u32 type, size;
+		v4l2_std_id id;
+		__u16 int_freq = 0;
+
+		n++;
+		if (n >= n_array) {
+			tuner_err("More firmware images in file than "
+				  "were expected!\n");
+			goto corrupt;
+		}
+
+		/* Checks if there's enough bytes to read */
+		if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
+			goto header;
+
+		type = get_unaligned_le32(p);
+		p += sizeof(type);
+
+		id = get_unaligned_le64(p);
+		p += sizeof(id);
+
+		if (type & HAS_IF) {
+			int_freq = get_unaligned_le16(p);
+			p += sizeof(int_freq);
+			if (endp - p < sizeof(size))
+				goto header;
+		}
+
+		size = get_unaligned_le32(p);
+		p += sizeof(size);
+
+		if (!size || size > endp - p) {
+			tuner_err("Firmware type ");
+			dump_firm_type(type);
+			printk("(%x), id %llx is corrupted "
+			       "(size=%d, expected %d)\n",
+			       type, (unsigned long long)id,
+			       (unsigned)(endp - p), size);
+			goto corrupt;
+		}
+
+		priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
+		if (priv->firm[n].ptr == NULL) {
+			tuner_err("Not enough memory to load firmware file.\n");
+			rc = -ENOMEM;
+			goto err;
+		}
+		tuner_dbg("Reading firmware type ");
+		if (debug) {
+			dump_firm_type_and_int_freq(type, int_freq);
+			printk("(%x), id %llx, size=%d.\n",
+			       type, (unsigned long long)id, size);
+		}
+
+		memcpy(priv->firm[n].ptr, p, size);
+		priv->firm[n].type = type;
+		priv->firm[n].id   = id;
+		priv->firm[n].size = size;
+		priv->firm[n].int_freq = int_freq;
+
+		p += size;
+	}
+
+	if (n + 1 != priv->firm_size) {
+		tuner_err("Firmware file is incomplete!\n");
+		goto corrupt;
+	}
+
+	goto done;
+
+header:
+	tuner_err("Firmware header is incomplete!\n");
+corrupt:
+	rc = -EINVAL;
+	tuner_err("Error: firmware file is corrupted!\n");
+
+err:
+	tuner_info("Releasing partially loaded firmware file.\n");
+	free_firmware(priv);
+
+done:
+	if (rc == 0)
+		tuner_dbg("Firmware files loaded.\n");
+	else
+		priv->state = XC2028_NODEV;
+
+	return rc;
+}
+
+static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int                 i, best_i = -1, best_nr_matches = 0;
+	unsigned int        type_mask = 0;
+
+	tuner_dbg("%s called, want type=", __func__);
+	if (debug) {
+		dump_firm_type(type);
+		printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
+	}
+
+	if (!priv->firm) {
+		tuner_err("Error! firmware not loaded\n");
+		return -EINVAL;
+	}
+
+	if (((type & ~SCODE) == 0) && (*id == 0))
+		*id = V4L2_STD_PAL;
+
+	if (type & BASE)
+		type_mask = BASE_TYPES;
+	else if (type & SCODE) {
+		type &= SCODE_TYPES;
+		type_mask = SCODE_TYPES & ~HAS_IF;
+	} else if (type & DTV_TYPES)
+		type_mask = DTV_TYPES;
+	else if (type & STD_SPECIFIC_TYPES)
+		type_mask = STD_SPECIFIC_TYPES;
+
+	type &= type_mask;
+
+	if (!(type & SCODE))
+		type_mask = ~0;
+
+	/* Seek for exact match */
+	for (i = 0; i < priv->firm_size; i++) {
+		if ((type == (priv->firm[i].type & type_mask)) &&
+		    (*id == priv->firm[i].id))
+			goto found;
+	}
+
+	/* Seek for generic video standard match */
+	for (i = 0; i < priv->firm_size; i++) {
+		v4l2_std_id match_mask;
+		int nr_matches;
+
+		if (type != (priv->firm[i].type & type_mask))
+			continue;
+
+		match_mask = *id & priv->firm[i].id;
+		if (!match_mask)
+			continue;
+
+		if ((*id & match_mask) == *id)
+			goto found; /* Supports all the requested standards */
+
+		nr_matches = hweight64(match_mask);
+		if (nr_matches > best_nr_matches) {
+			best_nr_matches = nr_matches;
+			best_i = i;
+		}
+	}
+
+	if (best_nr_matches > 0) {
+		tuner_dbg("Selecting best matching firmware (%d bits) for "
+			  "type=", best_nr_matches);
+		dump_firm_type(type);
+		printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
+		i = best_i;
+		goto found;
+	}
+
+	/*FIXME: Would make sense to seek for type "hint" match ? */
+
+	i = -ENOENT;
+	goto ret;
+
+found:
+	*id = priv->firm[i].id;
+
+ret:
+	tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found");
+	if (debug) {
+		dump_firm_type(type);
+		printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
+	}
+	return i;
+}
+
+static inline int do_tuner_callback(struct dvb_frontend *fe, int cmd, int arg)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+
+	/* analog side (tuner-core) uses i2c_adap->algo_data.
+	 * digital side is not guaranteed to have algo_data defined.
+	 *
+	 * digital side will always have fe->dvb defined.
+	 * analog side (tuner-core) doesn't (yet) define fe->dvb.
+	 */
+
+	return (!fe->callback) ? -EINVAL :
+		fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
+				fe->dvb->priv : priv->i2c_props.adap->algo_data,
+			     DVB_FRONTEND_COMPONENT_TUNER, cmd, arg);
+}
+
+static int load_firmware(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int                pos, rc;
+	unsigned char      *p, *endp, buf[MAX_XFER_SIZE];
+
+	if (priv->ctrl.max_len > sizeof(buf))
+		priv->ctrl.max_len = sizeof(buf);
+
+	tuner_dbg("%s called\n", __func__);
+
+	pos = seek_firmware(fe, type, id);
+	if (pos < 0)
+		return pos;
+
+	tuner_info("Loading firmware for type=");
+	dump_firm_type(priv->firm[pos].type);
+	printk("(%x), id %016llx.\n", priv->firm[pos].type,
+	       (unsigned long long)*id);
+
+	p = priv->firm[pos].ptr;
+	endp = p + priv->firm[pos].size;
+
+	while (p < endp) {
+		__u16 size;
+
+		/* Checks if there's enough bytes to read */
+		if (p + sizeof(size) > endp) {
+			tuner_err("Firmware chunk size is wrong\n");
+			return -EINVAL;
+		}
+
+		size = le16_to_cpu(*(__le16 *) p);
+		p += sizeof(size);
+
+		if (size == 0xffff)
+			return 0;
+
+		if (!size) {
+			/* Special callback command received */
+			rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
+			if (rc < 0) {
+				tuner_err("Error at RESET code %d\n",
+					   (*p) & 0x7f);
+				return -EINVAL;
+			}
+			continue;
+		}
+		if (size >= 0xff00) {
+			switch (size) {
+			case 0xff00:
+				rc = do_tuner_callback(fe, XC2028_RESET_CLK, 0);
+				if (rc < 0) {
+					tuner_err("Error at RESET code %d\n",
+						  (*p) & 0x7f);
+					return -EINVAL;
+				}
+				break;
+			default:
+				tuner_info("Invalid RESET code %d\n",
+					   size & 0x7f);
+				return -EINVAL;
+
+			}
+			continue;
+		}
+
+		/* Checks for a sleep command */
+		if (size & 0x8000) {
+			msleep(size & 0x7fff);
+			continue;
+		}
+
+		if ((size + p > endp)) {
+			tuner_err("missing bytes: need %d, have %d\n",
+				   size, (int)(endp - p));
+			return -EINVAL;
+		}
+
+		buf[0] = *p;
+		p++;
+		size--;
+
+		/* Sends message chunks */
+		while (size > 0) {
+			int len = (size < priv->ctrl.max_len - 1) ?
+				   size : priv->ctrl.max_len - 1;
+
+			memcpy(buf + 1, p, len);
+
+			rc = i2c_send(priv, buf, len + 1);
+			if (rc < 0) {
+				tuner_err("%d returned from send\n", rc);
+				return -EINVAL;
+			}
+
+			p += len;
+			size -= len;
+		}
+
+		/* silently fail if the frontend doesn't support I2C flush */
+		rc = do_tuner_callback(fe, XC2028_I2C_FLUSH, 0);
+		if ((rc < 0) && (rc != -EINVAL)) {
+			tuner_err("error executing flush: %d\n", rc);
+			return rc;
+		}
+	}
+	return 0;
+}
+
+static int load_scode(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id, __u16 int_freq, int scode)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int                pos, rc;
+	unsigned char	   *p;
+
+	tuner_dbg("%s called\n", __func__);
+
+	if (!int_freq) {
+		pos = seek_firmware(fe, type, id);
+		if (pos < 0)
+			return pos;
+	} else {
+		for (pos = 0; pos < priv->firm_size; pos++) {
+			if ((priv->firm[pos].int_freq == int_freq) &&
+			    (priv->firm[pos].type & HAS_IF))
+				break;
+		}
+		if (pos == priv->firm_size)
+			return -ENOENT;
+	}
+
+	p = priv->firm[pos].ptr;
+
+	if (priv->firm[pos].type & HAS_IF) {
+		if (priv->firm[pos].size != 12 * 16 || scode >= 16)
+			return -EINVAL;
+		p += 12 * scode;
+	} else {
+		/* 16 SCODE entries per file; each SCODE entry is 12 bytes and
+		 * has a 2-byte size header in the firmware format. */
+		if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
+		    le16_to_cpu(*(__le16 *)(p + 14 * scode)) != 12)
+			return -EINVAL;
+		p += 14 * scode + 2;
+	}
+
+	tuner_info("Loading SCODE for type=");
+	dump_firm_type_and_int_freq(priv->firm[pos].type,
+				    priv->firm[pos].int_freq);
+	printk("(%x), id %016llx.\n", priv->firm[pos].type,
+	       (unsigned long long)*id);
+
+	if (priv->firm_version < 0x0202)
+		rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00});
+	else
+		rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00});
+	if (rc < 0)
+		return -EIO;
+
+	rc = i2c_send(priv, p, 12);
+	if (rc < 0)
+		return -EIO;
+
+	rc = send_seq(priv, {0x00, 0x8c});
+	if (rc < 0)
+		return -EIO;
+
+	return 0;
+}
+
+static int xc2028_sleep(struct dvb_frontend *fe);
+
+static int check_firmware(struct dvb_frontend *fe, unsigned int type,
+			  v4l2_std_id std, __u16 int_freq)
+{
+	struct xc2028_data         *priv = fe->tuner_priv;
+	struct firmware_properties new_fw;
+	int			   rc, retry_count = 0;
+	u16			   version, hwmodel;
+	v4l2_std_id		   std0;
+
+	tuner_dbg("%s called\n", __func__);
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	if (priv->ctrl.mts && !(type & FM))
+		type |= MTS;
+
+retry:
+	new_fw.type = type;
+	new_fw.id = std;
+	new_fw.std_req = std;
+	new_fw.scode_table = SCODE | priv->ctrl.scode_table;
+	new_fw.scode_nr = 0;
+	new_fw.int_freq = int_freq;
+
+	tuner_dbg("checking firmware, user requested type=");
+	if (debug) {
+		dump_firm_type(new_fw.type);
+		printk("(%x), id %016llx, ", new_fw.type,
+		       (unsigned long long)new_fw.std_req);
+		if (!int_freq) {
+			printk("scode_tbl ");
+			dump_firm_type(priv->ctrl.scode_table);
+			printk("(%x), ", priv->ctrl.scode_table);
+		} else
+			printk("int_freq %d, ", new_fw.int_freq);
+		printk("scode_nr %d\n", new_fw.scode_nr);
+	}
+
+	/*
+	 * No need to reload base firmware if it matches and if the tuner
+	 * is not at sleep mode
+	 */
+	if ((priv->state == XC2028_ACTIVE) &&
+	    (((BASE | new_fw.type) & BASE_TYPES) ==
+	    (priv->cur_fw.type & BASE_TYPES))) {
+		tuner_dbg("BASE firmware not changed.\n");
+		goto skip_base;
+	}
+
+	/* Updating BASE - forget about all currently loaded firmware */
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+
+	/* Reset is needed before loading firmware */
+	rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0);
+	if (rc < 0)
+		goto fail;
+
+	/* BASE firmwares are all std0 */
+	std0 = 0;
+	rc = load_firmware(fe, BASE | new_fw.type, &std0);
+	if (rc < 0) {
+		tuner_err("Error %d while loading base firmware\n",
+			  rc);
+		goto fail;
+	}
+
+	/* Load INIT1, if needed */
+	tuner_dbg("Load init1 firmware, if exists\n");
+
+	rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0);
+	if (rc == -ENOENT)
+		rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ,
+				   &std0);
+	if (rc < 0 && rc != -ENOENT) {
+		tuner_err("Error %d while loading init1 firmware\n",
+			  rc);
+		goto fail;
+	}
+
+skip_base:
+	/*
+	 * No need to reload standard specific firmware if base firmware
+	 * was not reloaded and requested video standards have not changed.
+	 */
+	if (priv->cur_fw.type == (BASE | new_fw.type) &&
+	    priv->cur_fw.std_req == std) {
+		tuner_dbg("Std-specific firmware already loaded.\n");
+		goto skip_std_specific;
+	}
+
+	/* Reloading std-specific firmware forces a SCODE update */
+	priv->cur_fw.scode_table = 0;
+
+	rc = load_firmware(fe, new_fw.type, &new_fw.id);
+	if (rc == -ENOENT)
+		rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id);
+
+	if (rc < 0)
+		goto fail;
+
+skip_std_specific:
+	if (priv->cur_fw.scode_table == new_fw.scode_table &&
+	    priv->cur_fw.scode_nr == new_fw.scode_nr) {
+		tuner_dbg("SCODE firmware already loaded.\n");
+		goto check_device;
+	}
+
+	if (new_fw.type & FM)
+		goto check_device;
+
+	/* Load SCODE firmware, if exists */
+	tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
+
+	rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
+			new_fw.int_freq, new_fw.scode_nr);
+
+check_device:
+	if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
+	    xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) {
+		tuner_err("Unable to read tuner registers.\n");
+		goto fail;
+	}
+
+	tuner_dbg("Device is Xceive %d version %d.%d, "
+		  "firmware version %d.%d\n",
+		  hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8,
+		  (version & 0xf0) >> 4, version & 0xf);
+
+
+	if (priv->ctrl.read_not_reliable)
+		goto read_not_reliable;
+
+	/* Check firmware version against what we downloaded. */
+	if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
+		if (!priv->ctrl.read_not_reliable) {
+			tuner_err("Incorrect readback of firmware version.\n");
+			goto fail;
+		} else {
+			tuner_err("Returned an incorrect version. However, "
+				  "read is not reliable enough. Ignoring it.\n");
+			hwmodel = 3028;
+		}
+	}
+
+	/* Check that the tuner hardware model remains consistent over time. */
+	if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) {
+		priv->hwmodel = hwmodel;
+		priv->hwvers  = version & 0xff00;
+	} else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
+		   priv->hwvers != (version & 0xff00)) {
+		tuner_err("Read invalid device hardware information - tuner "
+			  "hung?\n");
+		goto fail;
+	}
+
+read_not_reliable:
+	priv->cur_fw = new_fw;
+
+	/*
+	 * By setting BASE in cur_fw.type only after successfully loading all
+	 * firmwares, we can:
+	 * 1. Identify that BASE firmware with type=0 has been loaded;
+	 * 2. Tell whether BASE firmware was just changed the next time through.
+	 */
+	priv->cur_fw.type |= BASE;
+	priv->state = XC2028_ACTIVE;
+
+	return 0;
+
+fail:
+	priv->state = XC2028_NO_FIRMWARE;
+
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+	if (retry_count < 8) {
+		msleep(50);
+		retry_count++;
+		tuner_dbg("Retrying firmware load\n");
+		goto retry;
+	}
+
+	/* Firmware didn't load. Put the device to sleep */
+	xc2028_sleep(fe);
+
+	if (rc == -ENOENT)
+		rc = -EINVAL;
+	return rc;
+}
+
+static int xc2028_signal(struct dvb_frontend *fe, u16 *strength)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	u16                 frq_lock, signal = 0;
+	int                 rc, i;
+
+	tuner_dbg("%s called\n", __func__);
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	/* If the device is sleeping, no channel is tuned */
+	if (!rc) {
+		*strength = 0;
+		return 0;
+	}
+
+	mutex_lock(&priv->lock);
+
+	/* Sync Lock Indicator */
+	for (i = 0; i < 3; i++) {
+		rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
+		if (rc < 0)
+			goto ret;
+
+		if (frq_lock)
+			break;
+		msleep(6);
+	}
+
+	/* Frequency didn't lock */
+	if (frq_lock == 2)
+		goto ret;
+
+	/* Get SNR of the video signal */
+	rc = xc2028_get_reg(priv, XREG_SNR, &signal);
+	if (rc < 0)
+		goto ret;
+
+	/* Signal level is 3 bits only */
+
+	signal = ((1 << 12) - 1) | ((signal & 0x07) << 12);
+
+ret:
+	mutex_unlock(&priv->lock);
+
+	*strength = signal;
+
+	tuner_dbg("signal strength is %d\n", signal);
+
+	return rc;
+}
+
+static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int i, rc;
+	u16 frq_lock = 0;
+	s16 afc_reg = 0;
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	/* If the device is sleeping, no channel is tuned */
+	if (!rc) {
+		*afc = 0;
+		return 0;
+	}
+
+	mutex_lock(&priv->lock);
+
+	/* Sync Lock Indicator */
+	for (i = 0; i < 3; i++) {
+		rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock);
+		if (rc < 0)
+			goto ret;
+
+		if (frq_lock)
+			break;
+		msleep(6);
+	}
+
+	/* Frequency didn't lock */
+	if (frq_lock == 2)
+		goto ret;
+
+	/* Get AFC */
+	rc = xc2028_get_reg(priv, XREG_FREQ_ERROR, &afc_reg);
+	if (rc < 0)
+		goto ret;
+
+	*afc = afc_reg * 15625; /* Hz */
+
+	tuner_dbg("AFC is %d Hz\n", *afc);
+
+ret:
+	mutex_unlock(&priv->lock);
+
+	return rc;
+}
+
+#define DIV 15625
+
+static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
+			    enum v4l2_tuner_type new_type,
+			    unsigned int type,
+			    v4l2_std_id std,
+			    u16 int_freq)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int		   rc = -EINVAL;
+	unsigned char	   buf[4];
+	u32		   div, offset = 0;
+
+	tuner_dbg("%s called\n", __func__);
+
+	mutex_lock(&priv->lock);
+
+	tuner_dbg("should set frequency %d kHz\n", freq / 1000);
+
+	if (check_firmware(fe, type, std, int_freq) < 0)
+		goto ret;
+
+	/* On some cases xc2028 can disable video output, if
+	 * very weak signals are received. By sending a soft
+	 * reset, this is re-enabled. So, it is better to always
+	 * send a soft reset before changing channels, to be sure
+	 * that xc2028 will be in a safe state.
+	 * Maybe this might also be needed for DTV.
+	 */
+	switch (new_type) {
+	case V4L2_TUNER_ANALOG_TV:
+		rc = send_seq(priv, {0x00, 0x00});
+
+		/* Analog mode requires offset = 0 */
+		break;
+	case V4L2_TUNER_RADIO:
+		/* Radio mode requires offset = 0 */
+		break;
+	case V4L2_TUNER_DIGITAL_TV:
+		/*
+		 * Digital modes require an offset to adjust to the
+		 * proper frequency. The offset depends on what
+		 * firmware version is used.
+		 */
+
+		/*
+		 * Adjust to the center frequency. This is calculated by the
+		 * formula: offset = 1.25MHz - BW/2
+		 * For DTV 7/8, the firmware uses BW = 8000, so it needs a
+		 * further adjustment to get the frequency center on VHF
+		 */
+
+		/*
+		 * The firmware DTV78 used to work fine in UHF band (8 MHz
+		 * bandwidth) but not at all in VHF band (7 MHz bandwidth).
+		 * The real problem was connected to the formula used to
+		 * calculate the center frequency offset in VHF band.
+		 * In fact, removing the 500KHz adjustment fixed the problem.
+		 * This is coherent to what was implemented for the DTV7
+		 * firmware.
+		 * In the end, now the center frequency is the same for all 3
+		 * firmwares (DTV7, DTV8, DTV78) and doesn't depend on channel
+		 * bandwidth.
+		 */
+
+		if (priv->cur_fw.type & DTV6)
+			offset = 1750000;
+		else	/* DTV7 or DTV8 or DTV78 */
+			offset = 2750000;
+
+		/*
+		 * xc3028 additional "magic"
+		 * Depending on the firmware version, it needs some adjustments
+		 * to properly centralize the frequency. This seems to be
+		 * needed to compensate the SCODE table adjustments made by
+		 * newer firmwares
+		 */
+
+		/*
+		 * The proper adjustment would be to do it at s-code table.
+		 * However, this didn't work, as reported by
+		 * Robert Lowery <rglowery@exemail.com.au>
+		 */
+
+#if 0
+		/*
+		 * Still need tests for XC3028L (firmware 3.2 or upper)
+		 * So, for now, let's just comment the per-firmware
+		 * version of this change. Reports with xc3028l working
+		 * with and without the lines bellow are welcome
+		 */
+
+		if (priv->firm_version < 0x0302) {
+			if (priv->cur_fw.type & DTV7)
+				offset += 500000;
+		} else {
+			if (priv->cur_fw.type & DTV7)
+				offset -= 300000;
+			else if (type != ATSC) /* DVB @6MHz, DTV 8 and DTV 7/8 */
+				offset += 200000;
+		}
+#endif
+		break;
+	default:
+		tuner_err("Unsupported tuner type %d.\n", new_type);
+		break;
+	}
+
+	div = (freq - offset + DIV / 2) / DIV;
+
+	/* CMD= Set frequency */
+	if (priv->firm_version < 0x0202)
+		rc = send_seq(priv, {0x00, XREG_RF_FREQ, 0x00, 0x00});
+	else
+		rc = send_seq(priv, {0x80, XREG_RF_FREQ, 0x00, 0x00});
+	if (rc < 0)
+		goto ret;
+
+	/* Return code shouldn't be checked.
+	   The reset CLK is needed only with tm6000.
+	   Driver should work fine even if this fails.
+	 */
+	if (priv->ctrl.msleep)
+		msleep(priv->ctrl.msleep);
+	do_tuner_callback(fe, XC2028_RESET_CLK, 1);
+
+	msleep(10);
+
+	buf[0] = 0xff & (div >> 24);
+	buf[1] = 0xff & (div >> 16);
+	buf[2] = 0xff & (div >> 8);
+	buf[3] = 0xff & (div);
+
+	rc = i2c_send(priv, buf, sizeof(buf));
+	if (rc < 0)
+		goto ret;
+	msleep(100);
+
+	priv->frequency = freq;
+
+	tuner_dbg("divisor= %*ph (freq=%d.%03d)\n", 4, buf,
+	       freq / 1000000, (freq % 1000000) / 1000);
+
+	rc = 0;
+
+ret:
+	mutex_unlock(&priv->lock);
+
+	return rc;
+}
+
+static int xc2028_set_analog_freq(struct dvb_frontend *fe,
+			      struct analog_parameters *p)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	unsigned int       type=0;
+
+	tuner_dbg("%s called\n", __func__);
+
+	if (p->mode == V4L2_TUNER_RADIO) {
+		type |= FM;
+		if (priv->ctrl.input1)
+			type |= INPUT1;
+		return generic_set_freq(fe, (625l * p->frequency) / 10,
+				V4L2_TUNER_RADIO, type, 0, 0);
+	}
+
+	/* if std is not defined, choose one */
+	if (!p->std)
+		p->std = V4L2_STD_MN;
+
+	/* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */
+	if (!(p->std & V4L2_STD_MN))
+		type |= F8MHZ;
+
+	/* Add audio hack to std mask */
+	p->std |= parse_audio_std_option();
+
+	return generic_set_freq(fe, 62500l * p->frequency,
+				V4L2_TUNER_ANALOG_TV, type, p->std, 0);
+}
+
+static int xc2028_set_params(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	u32 delsys = c->delivery_system;
+	u32 bw = c->bandwidth_hz;
+	struct xc2028_data *priv = fe->tuner_priv;
+	int rc;
+	unsigned int       type = 0;
+	u16                demod = 0;
+
+	tuner_dbg("%s called\n", __func__);
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	switch (delsys) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		/*
+		 * The only countries with 6MHz seem to be Taiwan/Uruguay.
+		 * Both seem to require QAM firmware for OFDM decoding
+		 * Tested in Taiwan by Terry Wu <terrywu2009@gmail.com>
+		 */
+		if (bw <= 6000000)
+			type |= QAM;
+
+		switch (priv->ctrl.type) {
+		case XC2028_D2633:
+			type |= D2633;
+			break;
+		case XC2028_D2620:
+			type |= D2620;
+			break;
+		case XC2028_AUTO:
+		default:
+			/* Zarlink seems to need D2633 */
+			if (priv->ctrl.demod == XC3028_FE_ZARLINK456)
+				type |= D2633;
+			else
+				type |= D2620;
+		}
+		break;
+	case SYS_ATSC:
+		/* The only ATSC firmware (at least on v2.7) is D2633 */
+		type |= ATSC | D2633;
+		break;
+	/* DVB-S and pure QAM (FE_QAM) are not supported */
+	default:
+		return -EINVAL;
+	}
+
+	if (bw <= 6000000) {
+		type |= DTV6;
+		priv->ctrl.vhfbw7 = 0;
+		priv->ctrl.uhfbw8 = 0;
+	} else if (bw <= 7000000) {
+		if (c->frequency < 470000000)
+			priv->ctrl.vhfbw7 = 1;
+		else
+			priv->ctrl.uhfbw8 = 0;
+		type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7;
+		type |= F8MHZ;
+	} else {
+		if (c->frequency < 470000000)
+			priv->ctrl.vhfbw7 = 0;
+		else
+			priv->ctrl.uhfbw8 = 1;
+		type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8;
+		type |= F8MHZ;
+	}
+
+	/* All S-code tables need a 200kHz shift */
+	if (priv->ctrl.demod) {
+		demod = priv->ctrl.demod;
+
+		/*
+		 * Newer firmwares require a 200 kHz offset only for ATSC
+		 */
+		if (type == ATSC || priv->firm_version < 0x0302)
+			demod += 200;
+		/*
+		 * The DTV7 S-code table needs a 700 kHz shift.
+		 *
+		 * DTV7 is only used in Australia.  Germany or Italy may also
+		 * use this firmware after initialization, but a tune to a UHF
+		 * channel should then cause DTV78 to be used.
+		 *
+		 * Unfortunately, on real-field tests, the s-code offset
+		 * didn't work as expected, as reported by
+		 * Robert Lowery <rglowery@exemail.com.au>
+		 */
+	}
+
+	return generic_set_freq(fe, c->frequency,
+				V4L2_TUNER_DIGITAL_TV, type, 0, demod);
+}
+
+static int xc2028_sleep(struct dvb_frontend *fe)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int rc;
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	/* Device is already in sleep mode */
+	if (!rc)
+		return 0;
+
+	/* Avoid firmware reload on slow devices or if PM disabled */
+	if (no_poweroff || priv->ctrl.disable_power_mgmt)
+		return 0;
+
+	tuner_dbg("Putting xc2028/3028 into poweroff mode.\n");
+	if (debug > 1) {
+		tuner_dbg("Printing sleep stack trace:\n");
+		dump_stack();
+	}
+
+	mutex_lock(&priv->lock);
+
+	if (priv->firm_version < 0x0202)
+		rc = send_seq(priv, {0x00, XREG_POWER_DOWN, 0x00, 0x00});
+	else
+		rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00});
+
+	if (rc >= 0)
+		priv->state = XC2028_SLEEP;
+
+	mutex_unlock(&priv->lock);
+
+	return rc;
+}
+
+static int xc2028_dvb_release(struct dvb_frontend *fe)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+
+	tuner_dbg("%s called\n", __func__);
+
+	mutex_lock(&xc2028_list_mutex);
+
+	/* only perform final cleanup if this is the last instance */
+	if (hybrid_tuner_report_instance_count(priv) == 1) {
+		free_firmware(priv);
+		kfree(priv->ctrl.fname);
+		priv->ctrl.fname = NULL;
+	}
+
+	if (priv)
+		hybrid_tuner_release_state(priv);
+
+	mutex_unlock(&xc2028_list_mutex);
+
+	fe->tuner_priv = NULL;
+
+	return 0;
+}
+
+static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	int rc;
+
+	tuner_dbg("%s called\n", __func__);
+
+	rc = check_device_status(priv);
+	if (rc < 0)
+		return rc;
+
+	*frequency = priv->frequency;
+
+	return 0;
+}
+
+static void load_firmware_cb(const struct firmware *fw,
+			     void *context)
+{
+	struct dvb_frontend *fe = context;
+	struct xc2028_data *priv = fe->tuner_priv;
+	int rc;
+
+	tuner_dbg("request_firmware_nowait(): %s\n", fw ? "OK" : "error");
+	if (!fw) {
+		tuner_err("Could not load firmware %s.\n", priv->fname);
+		priv->state = XC2028_NODEV;
+		return;
+	}
+
+	rc = load_all_firmwares(fe, fw);
+
+	release_firmware(fw);
+
+	if (rc < 0)
+		return;
+	priv->state = XC2028_ACTIVE;
+}
+
+static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg)
+{
+	struct xc2028_data *priv = fe->tuner_priv;
+	struct xc2028_ctrl *p    = priv_cfg;
+	int                 rc   = 0;
+
+	tuner_dbg("%s called\n", __func__);
+
+	mutex_lock(&priv->lock);
+
+	/*
+	 * Copy the config data.
+	 * For the firmware name, keep a local copy of the string,
+	 * in order to avoid troubles during device release.
+	 */
+	kfree(priv->ctrl.fname);
+	memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
+	if (p->fname) {
+		priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
+		if (priv->ctrl.fname == NULL)
+			rc = -ENOMEM;
+	}
+
+	/*
+	 * If firmware name changed, frees firmware. As free_firmware will
+	 * reset the status to NO_FIRMWARE, this forces a new request_firmware
+	 */
+	if (!firmware_name[0] && p->fname &&
+	    priv->fname && strcmp(p->fname, priv->fname))
+		free_firmware(priv);
+
+	if (priv->ctrl.max_len < 9)
+		priv->ctrl.max_len = 13;
+
+	if (priv->state == XC2028_NO_FIRMWARE) {
+		if (!firmware_name[0])
+			priv->fname = priv->ctrl.fname;
+		else
+			priv->fname = firmware_name;
+
+		rc = request_firmware_nowait(THIS_MODULE, 1,
+					     priv->fname,
+					     priv->i2c_props.adap->dev.parent,
+					     GFP_KERNEL,
+					     fe, load_firmware_cb);
+		if (rc < 0) {
+			tuner_err("Failed to request firmware %s\n",
+				  priv->fname);
+			priv->state = XC2028_NODEV;
+		} else
+			priv->state = XC2028_WAITING_FIRMWARE;
+	}
+	mutex_unlock(&priv->lock);
+
+	return rc;
+}
+
+static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
+	.info = {
+		 .name = "Xceive XC3028",
+		 .frequency_min = 42000000,
+		 .frequency_max = 864000000,
+		 .frequency_step = 50000,
+		 },
+
+	.set_config	   = xc2028_set_config,
+	.set_analog_params = xc2028_set_analog_freq,
+	.release           = xc2028_dvb_release,
+	.get_frequency     = xc2028_get_frequency,
+	.get_rf_strength   = xc2028_signal,
+	.get_afc           = xc2028_get_afc,
+	.set_params        = xc2028_set_params,
+	.sleep             = xc2028_sleep,
+};
+
+struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
+				   struct xc2028_config *cfg)
+{
+	struct xc2028_data *priv;
+	int instance;
+
+	if (debug)
+		printk(KERN_DEBUG "xc2028: Xcv2028/3028 init called!\n");
+
+	if (NULL == cfg)
+		return NULL;
+
+	if (!fe) {
+		printk(KERN_ERR "xc2028: No frontend!\n");
+		return NULL;
+	}
+
+	mutex_lock(&xc2028_list_mutex);
+
+	instance = hybrid_tuner_request_state(struct xc2028_data, priv,
+					      hybrid_tuner_instance_list,
+					      cfg->i2c_adap, cfg->i2c_addr,
+					      "xc2028");
+	switch (instance) {
+	case 0:
+		/* memory allocation failure */
+		goto fail;
+	case 1:
+		/* new tuner instance */
+		priv->ctrl.max_len = 13;
+
+		mutex_init(&priv->lock);
+
+		fe->tuner_priv = priv;
+		break;
+	case 2:
+		/* existing tuner instance */
+		fe->tuner_priv = priv;
+		break;
+	}
+
+	memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops,
+	       sizeof(xc2028_dvb_tuner_ops));
+
+	tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner");
+
+	if (cfg->ctrl)
+		xc2028_set_config(fe, cfg->ctrl);
+
+	mutex_unlock(&xc2028_list_mutex);
+
+	return fe;
+fail:
+	mutex_unlock(&xc2028_list_mutex);
+
+	xc2028_dvb_release(fe);
+	return NULL;
+}
+
+EXPORT_SYMBOL(xc2028_attach);
+
+MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver");
+MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(XC2028_DEFAULT_FIRMWARE);
+MODULE_FIRMWARE(XC3028L_DEFAULT_FIRMWARE);