Initial import

1 files changed, 709 insertions, 0 deletions

diff --git a/drivers/media/tuners/tda9887.c b/drivers/media/tuners/tda9887.c
new file mode 100644
index 000000000..56be6c293
--- /dev/null
+++ b/drivers/media/tuners/tda9887.c
@@ -0,0 +1,709 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+#include "tuner-i2c.h"
+#include "tda9887.h"
+
+
+/* Chips:
+   TDA9885 (PAL, NTSC)
+   TDA9886 (PAL, SECAM, NTSC)
+   TDA9887 (PAL, SECAM, NTSC, FM Radio)
+
+   Used as part of several tuners
+*/
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+static DEFINE_MUTEX(tda9887_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+struct tda9887_priv {
+	struct tuner_i2c_props i2c_props;
+	struct list_head hybrid_tuner_instance_list;
+
+	unsigned char 	   data[4];
+	unsigned int       config;
+	unsigned int       mode;
+	unsigned int       audmode;
+	v4l2_std_id        std;
+
+	bool               standby;
+};
+
+/* ---------------------------------------------------------------------- */
+
+#define UNSET       (-1U)
+
+struct tvnorm {
+	v4l2_std_id       std;
+	char              *name;
+	unsigned char     b;
+	unsigned char     c;
+	unsigned char     e;
+};
+
+/* ---------------------------------------------------------------------- */
+
+//
+// TDA defines
+//
+
+//// first reg (b)
+#define cVideoTrapBypassOFF     0x00    // bit b0
+#define cVideoTrapBypassON      0x01    // bit b0
+
+#define cAutoMuteFmInactive     0x00    // bit b1
+#define cAutoMuteFmActive       0x02    // bit b1
+
+#define cIntercarrier           0x00    // bit b2
+#define cQSS                    0x04    // bit b2
+
+#define cPositiveAmTV           0x00    // bit b3:4
+#define cFmRadio                0x08    // bit b3:4
+#define cNegativeFmTV           0x10    // bit b3:4
+
+
+#define cForcedMuteAudioON      0x20    // bit b5
+#define cForcedMuteAudioOFF     0x00    // bit b5
+
+#define cOutputPort1Active      0x00    // bit b6
+#define cOutputPort1Inactive    0x40    // bit b6
+
+#define cOutputPort2Active      0x00    // bit b7
+#define cOutputPort2Inactive    0x80    // bit b7
+
+
+//// second reg (c)
+#define cDeemphasisOFF          0x00    // bit c5
+#define cDeemphasisON           0x20    // bit c5
+
+#define cDeemphasis75           0x00    // bit c6
+#define cDeemphasis50           0x40    // bit c6
+
+#define cAudioGain0             0x00    // bit c7
+#define cAudioGain6             0x80    // bit c7
+
+#define cTopMask                0x1f    // bit c0:4
+#define cTopDefault		0x10 	// bit c0:4
+
+//// third reg (e)
+#define cAudioIF_4_5             0x00    // bit e0:1
+#define cAudioIF_5_5             0x01    // bit e0:1
+#define cAudioIF_6_0             0x02    // bit e0:1
+#define cAudioIF_6_5             0x03    // bit e0:1
+
+
+#define cVideoIFMask		0x1c	// bit e2:4
+/* Video IF selection in TV Mode (bit B3=0) */
+#define cVideoIF_58_75           0x00    // bit e2:4
+#define cVideoIF_45_75           0x04    // bit e2:4
+#define cVideoIF_38_90           0x08    // bit e2:4
+#define cVideoIF_38_00           0x0C    // bit e2:4
+#define cVideoIF_33_90           0x10    // bit e2:4
+#define cVideoIF_33_40           0x14    // bit e2:4
+#define cRadioIF_45_75           0x18    // bit e2:4
+#define cRadioIF_38_90           0x1C    // bit e2:4
+
+/* IF1 selection in Radio Mode (bit B3=1) */
+#define cRadioIF_33_30		0x00	// bit e2,4 (also 0x10,0x14)
+#define cRadioIF_41_30		0x04	// bit e2,4
+
+/* Output of AFC pin in radio mode when bit E7=1 */
+#define cRadioAGC_SIF		0x00	// bit e3
+#define cRadioAGC_FM		0x08	// bit e3
+
+#define cTunerGainNormal         0x00    // bit e5
+#define cTunerGainLow            0x20    // bit e5
+
+#define cGating_18               0x00    // bit e6
+#define cGating_36               0x40    // bit e6
+
+#define cAgcOutON                0x80    // bit e7
+#define cAgcOutOFF               0x00    // bit e7
+
+/* ---------------------------------------------------------------------- */
+
+static struct tvnorm tvnorms[] = {
+	{
+		.std   = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N,
+		.name  = "PAL-BGHN",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis50  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_5_5   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_PAL_I,
+		.name  = "PAL-I",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis50  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_6_0   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_PAL_DK,
+		.name  = "PAL-DK",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis50  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_6_5   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc,
+		.name  = "PAL-M/Nc",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis75  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_4_5   |
+			   cVideoIF_45_75 ),
+	},{
+		.std   = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
+		.name  = "SECAM-BGH",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cTopDefault),
+		.e     = ( cAudioIF_5_5   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_SECAM_L,
+		.name  = "SECAM-L",
+		.b     = ( cPositiveAmTV  |
+			   cQSS           ),
+		.c     = ( cTopDefault),
+		.e     = ( cGating_36	  |
+			   cAudioIF_6_5   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_SECAM_LC,
+		.name  = "SECAM-L'",
+		.b     = ( cOutputPort2Inactive |
+			   cPositiveAmTV  |
+			   cQSS           ),
+		.c     = ( cTopDefault),
+		.e     = ( cGating_36	  |
+			   cAudioIF_6_5   |
+			   cVideoIF_33_90 ),
+	},{
+		.std   = V4L2_STD_SECAM_DK,
+		.name  = "SECAM-DK",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis50  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_6_5   |
+			   cVideoIF_38_90 ),
+	},{
+		.std   = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
+		.name  = "NTSC-M",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis75  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_4_5   |
+			   cVideoIF_45_75 ),
+	},{
+		.std   = V4L2_STD_NTSC_M_JP,
+		.name  = "NTSC-M-JP",
+		.b     = ( cNegativeFmTV  |
+			   cQSS           ),
+		.c     = ( cDeemphasisON  |
+			   cDeemphasis50  |
+			   cTopDefault),
+		.e     = ( cGating_36     |
+			   cAudioIF_4_5   |
+			   cVideoIF_58_75 ),
+	}
+};
+
+static struct tvnorm radio_stereo = {
+	.name = "Radio Stereo",
+	.b    = ( cFmRadio       |
+		  cQSS           ),
+	.c    = ( cDeemphasisOFF |
+		  cAudioGain6    |
+		  cTopDefault),
+	.e    = ( cTunerGainLow  |
+		  cAudioIF_5_5   |
+		  cRadioIF_38_90 ),
+};
+
+static struct tvnorm radio_mono = {
+	.name = "Radio Mono",
+	.b    = ( cFmRadio       |
+		  cQSS           ),
+	.c    = ( cDeemphasisON  |
+		  cDeemphasis75  |
+		  cTopDefault),
+	.e    = ( cTunerGainLow  |
+		  cAudioIF_5_5   |
+		  cRadioIF_38_90 ),
+};
+
+/* ---------------------------------------------------------------------- */
+
+static void dump_read_message(struct dvb_frontend *fe, unsigned char *buf)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	static char *afc[16] = {
+		"- 12.5 kHz",
+		"- 37.5 kHz",
+		"- 62.5 kHz",
+		"- 87.5 kHz",
+		"-112.5 kHz",
+		"-137.5 kHz",
+		"-162.5 kHz",
+		"-187.5 kHz [min]",
+		"+187.5 kHz [max]",
+		"+162.5 kHz",
+		"+137.5 kHz",
+		"+112.5 kHz",
+		"+ 87.5 kHz",
+		"+ 62.5 kHz",
+		"+ 37.5 kHz",
+		"+ 12.5 kHz",
+	};
+	tuner_info("read: 0x%2x\n", buf[0]);
+	tuner_info("  after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
+	tuner_info("  afc            : %s\n", afc[(buf[0] >> 1) & 0x0f]);
+	tuner_info("  fmif level     : %s\n", (buf[0] & 0x20) ? "high" : "low");
+	tuner_info("  afc window     : %s\n", (buf[0] & 0x40) ? "in" : "out");
+	tuner_info("  vfi level      : %s\n", (buf[0] & 0x80) ? "high" : "low");
+}
+
+static void dump_write_message(struct dvb_frontend *fe, unsigned char *buf)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	static char *sound[4] = {
+		"AM/TV",
+		"FM/radio",
+		"FM/TV",
+		"FM/radio"
+	};
+	static char *adjust[32] = {
+		"-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
+		"-8",  "-7",  "-6",  "-5",  "-4",  "-3",  "-2",  "-1",
+		"0",   "+1",  "+2",  "+3",  "+4",  "+5",  "+6",  "+7",
+		"+8",  "+9",  "+10", "+11", "+12", "+13", "+14", "+15"
+	};
+	static char *deemph[4] = {
+		"no", "no", "75", "50"
+	};
+	static char *carrier[4] = {
+		"4.5 MHz",
+		"5.5 MHz",
+		"6.0 MHz",
+		"6.5 MHz / AM"
+	};
+	static char *vif[8] = {
+		"58.75 MHz",
+		"45.75 MHz",
+		"38.9 MHz",
+		"38.0 MHz",
+		"33.9 MHz",
+		"33.4 MHz",
+		"45.75 MHz + pin13",
+		"38.9 MHz + pin13",
+	};
+	static char *rif[4] = {
+		"44 MHz",
+		"52 MHz",
+		"52 MHz",
+		"44 MHz",
+	};
+
+	tuner_info("write: byte B 0x%02x\n", buf[1]);
+	tuner_info("  B0   video mode      : %s\n",
+		   (buf[1] & 0x01) ? "video trap" : "sound trap");
+	tuner_info("  B1   auto mute fm    : %s\n",
+		   (buf[1] & 0x02) ? "yes" : "no");
+	tuner_info("  B2   carrier mode    : %s\n",
+		   (buf[1] & 0x04) ? "QSS" : "Intercarrier");
+	tuner_info("  B3-4 tv sound/radio  : %s\n",
+		   sound[(buf[1] & 0x18) >> 3]);
+	tuner_info("  B5   force mute audio: %s\n",
+		   (buf[1] & 0x20) ? "yes" : "no");
+	tuner_info("  B6   output port 1   : %s\n",
+		   (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
+	tuner_info("  B7   output port 2   : %s\n",
+		   (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
+
+	tuner_info("write: byte C 0x%02x\n", buf[2]);
+	tuner_info("  C0-4 top adjustment  : %s dB\n",
+		   adjust[buf[2] & 0x1f]);
+	tuner_info("  C5-6 de-emphasis     : %s\n",
+		   deemph[(buf[2] & 0x60) >> 5]);
+	tuner_info("  C7   audio gain      : %s\n",
+		   (buf[2] & 0x80) ? "-6" : "0");
+
+	tuner_info("write: byte E 0x%02x\n", buf[3]);
+	tuner_info("  E0-1 sound carrier   : %s\n",
+		   carrier[(buf[3] & 0x03)]);
+	tuner_info("  E6   l pll gating   : %s\n",
+		   (buf[3] & 0x40) ? "36" : "13");
+
+	if (buf[1] & 0x08) {
+		/* radio */
+		tuner_info("  E2-4 video if        : %s\n",
+			   rif[(buf[3] & 0x0c) >> 2]);
+		tuner_info("  E7   vif agc output  : %s\n",
+			   (buf[3] & 0x80)
+			   ? ((buf[3] & 0x10) ? "fm-agc radio" :
+						"sif-agc radio")
+			   : "fm radio carrier afc");
+	} else {
+		/* video */
+		tuner_info("  E2-4 video if        : %s\n",
+			   vif[(buf[3] & 0x1c) >> 2]);
+		tuner_info("  E5   tuner gain      : %s\n",
+			   (buf[3] & 0x80)
+			   ? ((buf[3] & 0x20) ? "external" : "normal")
+			   : ((buf[3] & 0x20) ? "minimum"  : "normal"));
+		tuner_info("  E7   vif agc output  : %s\n",
+			   (buf[3] & 0x80) ? ((buf[3] & 0x20)
+				? "pin3 port, pin22 vif agc out"
+				: "pin22 port, pin3 vif acg ext in")
+				: "pin3+pin22 port");
+	}
+	tuner_info("--\n");
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int tda9887_set_tvnorm(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	struct tvnorm *norm = NULL;
+	char *buf = priv->data;
+	int i;
+
+	if (priv->mode == V4L2_TUNER_RADIO) {
+		if (priv->audmode == V4L2_TUNER_MODE_MONO)
+			norm = &radio_mono;
+		else
+			norm = &radio_stereo;
+	} else {
+		for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
+			if (tvnorms[i].std & priv->std) {
+				norm = tvnorms+i;
+				break;
+			}
+		}
+	}
+	if (NULL == norm) {
+		tuner_dbg("Unsupported tvnorm entry - audio muted\n");
+		return -1;
+	}
+
+	tuner_dbg("configure for: %s\n", norm->name);
+	buf[1] = norm->b;
+	buf[2] = norm->c;
+	buf[3] = norm->e;
+	return 0;
+}
+
+static unsigned int port1  = UNSET;
+static unsigned int port2  = UNSET;
+static unsigned int qss    = UNSET;
+static unsigned int adjust = UNSET;
+
+module_param(port1, int, 0644);
+module_param(port2, int, 0644);
+module_param(qss, int, 0644);
+module_param(adjust, int, 0644);
+
+static int tda9887_set_insmod(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	char *buf = priv->data;
+
+	if (UNSET != port1) {
+		if (port1)
+			buf[1] |= cOutputPort1Inactive;
+		else
+			buf[1] &= ~cOutputPort1Inactive;
+	}
+	if (UNSET != port2) {
+		if (port2)
+			buf[1] |= cOutputPort2Inactive;
+		else
+			buf[1] &= ~cOutputPort2Inactive;
+	}
+
+	if (UNSET != qss) {
+		if (qss)
+			buf[1] |= cQSS;
+		else
+			buf[1] &= ~cQSS;
+	}
+
+	if (adjust < 0x20) {
+		buf[2] &= ~cTopMask;
+		buf[2] |= adjust;
+	}
+	return 0;
+}
+
+static int tda9887_do_config(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	char *buf = priv->data;
+
+	if (priv->config & TDA9887_PORT1_ACTIVE)
+		buf[1] &= ~cOutputPort1Inactive;
+	if (priv->config & TDA9887_PORT1_INACTIVE)
+		buf[1] |= cOutputPort1Inactive;
+	if (priv->config & TDA9887_PORT2_ACTIVE)
+		buf[1] &= ~cOutputPort2Inactive;
+	if (priv->config & TDA9887_PORT2_INACTIVE)
+		buf[1] |= cOutputPort2Inactive;
+
+	if (priv->config & TDA9887_QSS)
+		buf[1] |= cQSS;
+	if (priv->config & TDA9887_INTERCARRIER)
+		buf[1] &= ~cQSS;
+
+	if (priv->config & TDA9887_AUTOMUTE)
+		buf[1] |= cAutoMuteFmActive;
+	if (priv->config & TDA9887_DEEMPHASIS_MASK) {
+		buf[2] &= ~0x60;
+		switch (priv->config & TDA9887_DEEMPHASIS_MASK) {
+		case TDA9887_DEEMPHASIS_NONE:
+			buf[2] |= cDeemphasisOFF;
+			break;
+		case TDA9887_DEEMPHASIS_50:
+			buf[2] |= cDeemphasisON | cDeemphasis50;
+			break;
+		case TDA9887_DEEMPHASIS_75:
+			buf[2] |= cDeemphasisON | cDeemphasis75;
+			break;
+		}
+	}
+	if (priv->config & TDA9887_TOP_SET) {
+		buf[2] &= ~cTopMask;
+		buf[2] |= (priv->config >> 8) & cTopMask;
+	}
+	if ((priv->config & TDA9887_INTERCARRIER_NTSC) &&
+	    (priv->std & V4L2_STD_NTSC))
+		buf[1] &= ~cQSS;
+	if (priv->config & TDA9887_GATING_18)
+		buf[3] &= ~cGating_36;
+
+	if (priv->mode == V4L2_TUNER_RADIO) {
+		if (priv->config & TDA9887_RIF_41_3) {
+			buf[3] &= ~cVideoIFMask;
+			buf[3] |= cRadioIF_41_30;
+		}
+		if (priv->config & TDA9887_GAIN_NORMAL)
+			buf[3] &= ~cTunerGainLow;
+	}
+
+	return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int tda9887_status(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	unsigned char buf[1];
+	int rc;
+
+	rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, 1);
+	if (rc != 1)
+		tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc);
+	dump_read_message(fe, buf);
+	return 0;
+}
+
+static void tda9887_configure(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	int rc;
+
+	memset(priv->data,0,sizeof(priv->data));
+	tda9887_set_tvnorm(fe);
+
+	/* A note on the port settings:
+	   These settings tend to depend on the specifics of the board.
+	   By default they are set to inactive (bit value 1) by this driver,
+	   overwriting any changes made by the tvnorm. This means that it
+	   is the responsibility of the module using the tda9887 to set
+	   these values in case of changes in the tvnorm.
+	   In many cases port 2 should be made active (0) when selecting
+	   SECAM-L, and port 2 should remain inactive (1) for SECAM-L'.
+
+	   For the other standards the tda9887 application note says that
+	   the ports should be set to active (0), but, again, that may
+	   differ depending on the precise hardware configuration.
+	 */
+	priv->data[1] |= cOutputPort1Inactive;
+	priv->data[1] |= cOutputPort2Inactive;
+
+	tda9887_do_config(fe);
+	tda9887_set_insmod(fe);
+
+	if (priv->standby)
+		priv->data[1] |= cForcedMuteAudioON;
+
+	tuner_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
+		  priv->data[1], priv->data[2], priv->data[3]);
+	if (debug > 1)
+		dump_write_message(fe, priv->data);
+
+	if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,priv->data,4)))
+		tuner_info("i2c i/o error: rc == %d (should be 4)\n", rc);
+
+	if (debug > 2) {
+		msleep_interruptible(1000);
+		tda9887_status(fe);
+	}
+}
+
+/* ---------------------------------------------------------------------- */
+
+static void tda9887_tuner_status(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	tuner_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n",
+		   priv->data[1], priv->data[2], priv->data[3]);
+}
+
+static int tda9887_get_afc(struct dvb_frontend *fe, s32 *afc)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+	static const int AFC_BITS_2_kHz[] = {
+		-12500,  -37500,  -62500,  -97500,
+		-112500, -137500, -162500, -187500,
+		187500,  162500,  137500,  112500,
+		97500 ,  62500,   37500 ,  12500
+	};
+	__u8 reg = 0;
+
+	if (priv->mode != V4L2_TUNER_RADIO)
+		return 0;
+	if (1 == tuner_i2c_xfer_recv(&priv->i2c_props, &reg, 1))
+		*afc = AFC_BITS_2_kHz[(reg >> 1) & 0x0f];
+	return 0;
+}
+
+static void tda9887_standby(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	priv->standby = true;
+
+	tda9887_configure(fe);
+}
+
+static void tda9887_set_params(struct dvb_frontend *fe,
+			       struct analog_parameters *params)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	priv->standby = false;
+	priv->mode    = params->mode;
+	priv->audmode = params->audmode;
+	priv->std     = params->std;
+	tda9887_configure(fe);
+}
+
+static int tda9887_set_config(struct dvb_frontend *fe, void *priv_cfg)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	priv->config = *(unsigned int *)priv_cfg;
+	tda9887_configure(fe);
+
+	return 0;
+}
+
+static void tda9887_release(struct dvb_frontend *fe)
+{
+	struct tda9887_priv *priv = fe->analog_demod_priv;
+
+	mutex_lock(&tda9887_list_mutex);
+
+	if (priv)
+		hybrid_tuner_release_state(priv);
+
+	mutex_unlock(&tda9887_list_mutex);
+
+	fe->analog_demod_priv = NULL;
+}
+
+static struct analog_demod_ops tda9887_ops = {
+	.info		= {
+		.name	= "tda9887",
+	},
+	.set_params     = tda9887_set_params,
+	.standby        = tda9887_standby,
+	.tuner_status   = tda9887_tuner_status,
+	.get_afc        = tda9887_get_afc,
+	.release        = tda9887_release,
+	.set_config     = tda9887_set_config,
+};
+
+struct dvb_frontend *tda9887_attach(struct dvb_frontend *fe,
+				    struct i2c_adapter *i2c_adap,
+				    u8 i2c_addr)
+{
+	struct tda9887_priv *priv = NULL;
+	int instance;
+
+	mutex_lock(&tda9887_list_mutex);
+
+	instance = hybrid_tuner_request_state(struct tda9887_priv, priv,
+					      hybrid_tuner_instance_list,
+					      i2c_adap, i2c_addr, "tda9887");
+	switch (instance) {
+	case 0:
+		mutex_unlock(&tda9887_list_mutex);
+		return NULL;
+	case 1:
+		fe->analog_demod_priv = priv;
+		priv->standby = true;
+		tuner_info("tda988[5/6/7] found\n");
+		break;
+	default:
+		fe->analog_demod_priv = priv;
+		break;
+	}
+
+	mutex_unlock(&tda9887_list_mutex);
+
+	memcpy(&fe->ops.analog_ops, &tda9887_ops,
+	       sizeof(struct analog_demod_ops));
+
+	return fe;
+}
+EXPORT_SYMBOL_GPL(tda9887_attach);
+
+MODULE_LICENSE("GPL");