Split msp3400.c into msp3400-driver.c and msp3400-kthreads.c

- Split msp3400.c into msp3400-driver.c and msp3400-kthreads.c.
- Removed experimental DFPREG ioctls. If this is really needed one
  day then it should be implemented using VIDIOC_G/S_REGISTER.
- Added missing BALANCE control info for VIDIOC_QUERYCTRL.
- Still more cleanup, clarified some kernel messages.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

1 files changed, 97 insertions, 1292 deletions

diff --git a/linux/drivers/media/video/msp3400-driver.c b/linux/drivers/media/video/msp3400-driver.c
index dccdff716..5176d84e5 100644
--- a/linux/drivers/media/video/msp3400-driver.c
+++ b/linux/drivers/media/video/msp3400-driver.c
@@ -1,5 +1,5 @@
 /*
- * programming the msp34* sound processor family
+ * Programming the mspx4xx sound processor family
  *
  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
  *
@@ -24,44 +24,45 @@
  *      should work, with autodetect. Support for NICAM was added by
  *      Pekka Pietikainen <pp@netppl.fi>
  *
- *
  * TODO:
  *   - better SAT support
  *
- *
  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
  *         using soundcore instead of OSS
  *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
+#include "compat.h"
+
 #include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/smp_lock.h>
-#include "compat.h"
+#include <linux/videodev.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/audiochip.h>
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
 #include <linux/kthread.h>
 #include <linux/suspend.h>
 #endif
-#include <asm/semaphore.h>
-#include <asm/pgtable.h>
-
-#include <linux/videodev.h>
-#include <media/audiochip.h>
-#include <media/v4l2-common.h>
-#include "msp3400.h"
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 #include "i2c-compat.h"
 #endif
+#include "msp3400.h"
 
 /* ---------------------------------------------------------------------- */
 
@@ -69,21 +70,16 @@ MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
 MODULE_AUTHOR("Gerd Knorr");
 MODULE_LICENSE("GPL");
 
-#define OPMODE_AUTO       -1
-#define OPMODE_MANUAL      0
-#define OPMODE_AUTODETECT  1   /* use autodetect (>= msp3410 only) */
-#define OPMODE_AUTOSELECT  2   /* use autodetect & autoselect (>= msp34xxG)   */
-
 /* module parameters */
 static int opmode   = OPMODE_AUTO;
-static int debug    = 0;    /* debug output */
-static int once     = 0;    /* no continous stereo monitoring */
-static int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
+int debug    = 0;    /* debug output */
+int once     = 0;    /* no continous stereo monitoring */
+int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
 			       the autoscan seems work well only with FM... */
-static int standard = 1;    /* Override auto detect of audio standard, if needed. */
-static int dolby    = 0;
+int standard = 1;    /* Override auto detect of audio standard, if needed. */
+int dolby    = 0;
 
-static int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
+int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
 					(msp34xxg only) 0x00a0-0x03c0 */
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
@@ -109,7 +105,7 @@ MODULE_PARM(dolby,            "i");
 
 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
-MODULE_PARM_DESC(debug, "Enable debug messages");
+MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
@@ -117,40 +113,6 @@ MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
 
 /* ---------------------------------------------------------------------- */
 
-#define msp_err(fmt, arg...) \
-	printk(KERN_ERR "%s %d-%04x: " fmt, client->driver->name, \
-		i2c_adapter_id(client->adapter), client->addr , ## arg)
-#define msp_warn(fmt, arg...) \
-	printk(KERN_WARNING "%s %d-%04x: " fmt, client->driver->name, \
-		i2c_adapter_id(client->adapter), client->addr , ## arg)
-#define msp_info(fmt, arg...) \
-	printk(KERN_INFO "%s %d-%04x: " fmt, client->driver->name, \
-		i2c_adapter_id(client->adapter), client->addr , ## arg)
-
-/* level 1 debug. */
-#define msp_dbg1(fmt, arg...) \
-	do { \
-		if (debug) \
-			printk(KERN_INFO "%s debug %d-%04x: " fmt, client->driver->name, \
-			       i2c_adapter_id(client->adapter), client->addr , ## arg); \
-	} while (0)
-
-/* level 2 debug. */
-#define msp_dbg2(fmt, arg...) \
-	do { \
-		if (debug >= 2) \
-			printk(KERN_INFO "%s debug %d-%04x: " fmt, client->driver->name, \
-				i2c_adapter_id(client->adapter), client->addr , ## arg); \
-	} while (0)
-
-/* level 3 debug. Use with care. */
-#define msp_dbg3(fmt, arg...) \
-	do { \
-		if (debug >= 16) \
-			printk(KERN_INFO "%s debug %d-%04x: " fmt, client->driver->name, \
-				i2c_adapter_id(client->adapter), client->addr , ## arg); \
-	} while (0)
-
 /* control subaddress */
 #define I2C_MSP_CONTROL 0x00
 /* demodulator unit subaddress */
@@ -167,59 +129,11 @@ static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
 
 I2C_CLIENT_INSMOD;
 
-#define DFP_COUNT 0x41
-static const int bl_dfp[] = {
-	0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a,
-	0x0b, 0x0d, 0x0e, 0x10
-};
-
-#define HAVE_NICAM(state)   (((state->rev2 >> 8) & 0xff) != 0)
-#define HAVE_RADIO(state)   ((state->rev1 & 0x0f) >= 'G'-'@')
-
-struct msp_state {
-	int rev1, rev2;
-
-	int opmode;
-	int mode;
-	int norm;
-	int stereo;
-	int nicam_on;
-	int acb;
-	int in_scart;
-	int i2s_mode;
-	int main, second;	/* sound carrier */
-	int input;
-	int source;             /* see msp34xxg_set_source */
-
-	/* v4l2 */
-	int audmode;
-	int rxsubchans;
-
-	int muted;
-	int volume, balance;
-	int bass, treble;
-
-	/* shadow register set */
-	int dfp_regs[DFP_COUNT];
-
-	/* thread */
-	struct task_struct   *kthread;
-	wait_queue_head_t    wq;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	struct semaphore     *notify;
-	int 		     rmmod:1;
-#endif
-	int                  restart:1;
-	int                  watch_stereo:1;
-};
-
-#define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
-
 
 /* ----------------------------------------------------------------------- */
 /* functions for talking to the MSP3400C Sound processor                   */
 
-static int msp_reset(struct i2c_client *client)
+int msp_reset(struct i2c_client *client)
 {
 	/* reset and read revision code */
 	static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
@@ -277,12 +191,12 @@ static int msp_read(struct i2c_client *client, int dev, int addr)
 	return retval;
 }
 
-static inline int msp_read_dem(struct i2c_client *client, int addr)
+int msp_read_dem(struct i2c_client *client, int addr)
 {
 	return msp_read(client, I2C_MSP_DEM, addr);
 }
 
-static inline int msp_read_dsp(struct i2c_client *client, int addr)
+int msp_read_dsp(struct i2c_client *client, int addr)
 {
 	return msp_read(client, I2C_MSP_DSP, addr);
 }
@@ -315,12 +229,12 @@ static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 	return 0;
 }
 
-static inline int msp_write_dem(struct i2c_client *client, int addr, int val)
+int msp_write_dem(struct i2c_client *client, int addr, int val)
 {
 	return msp_write(client, I2C_MSP_DEM, addr, val);
 }
 
-static inline int msp_write_dsp(struct i2c_client *client, int addr, int val)
+int msp_write_dsp(struct i2c_client *client, int addr, int val)
 {
 	return msp_write(client, I2C_MSP_DSP, addr, val);
 }
@@ -366,7 +280,7 @@ static char *scart_names[] = {
 	"mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 };
 
-static void msp_set_scart(struct i2c_client *client, int in, int out)
+void msp_set_scart(struct i2c_client *client, int in, int out)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
 
@@ -389,123 +303,14 @@ static void msp_set_scart(struct i2c_client *client, int in, int out)
 	msp_write_dem(client, 0x40, state->i2s_mode);
 }
 
-/* ------------------------------------------------------------------------ */
-
-/* This macro is allowed for *constants* only, gcc must calculate it
-   at compile time.  Remember -- no floats in kernel mode */
-#define MSP_CARRIER(freq) ((int)((float)(freq / 18.432) * (1 << 24)))
-
-#define MSP_MODE_AM_DETECT   0
-#define MSP_MODE_FM_RADIO    2
-#define MSP_MODE_FM_TERRA    3
-#define MSP_MODE_FM_SAT      4
-#define MSP_MODE_FM_NICAM1   5
-#define MSP_MODE_FM_NICAM2   6
-#define MSP_MODE_AM_NICAM    7
-#define MSP_MODE_BTSC        8
-#define MSP_MODE_EXTERN      9
-
-static struct msp3400c_init_data_dem {
-	int fir1[6];
-	int fir2[6];
-	int cdo1;
-	int cdo2;
-	int ad_cv;
-	int mode_reg;
-	int dfp_src;
-	int dfp_matrix;
-} msp3400c_init_data[] = {
-	{	/* AM (for carrier detect / msp3400) */
-		{75, 19, 36, 35, 39, 40},
-		{75, 19, 36, 35, 39, 40},
-		MSP_CARRIER(5.5), MSP_CARRIER(5.5),
-		0x00d0, 0x0500, 0x0020, 0x3000
-	},{	/* AM (for carrier detect / msp3410) */
-		{-1, -1, -8, 2, 59, 126},
-		{-1, -1, -8, 2, 59, 126},
-		MSP_CARRIER(5.5), MSP_CARRIER(5.5),
-		0x00d0, 0x0100, 0x0020, 0x3000
-	},{	/* FM Radio */
-		{-8, -8, 4, 6, 78, 107},
-		{-8, -8, 4, 6, 78, 107},
-		MSP_CARRIER(10.7), MSP_CARRIER(10.7),
-		0x00d0, 0x0480, 0x0020, 0x3000
-	},{	/* Terrestial FM-mono + FM-stereo */
-		{3, 18, 27, 48, 66, 72},
-		{3, 18, 27, 48, 66, 72},
-		MSP_CARRIER(5.5), MSP_CARRIER(5.5),
-		0x00d0, 0x0480, 0x0030, 0x3000
-	},{	/* Sat FM-mono */
-		{ 1, 9, 14, 24, 33, 37},
-		{ 3, 18, 27, 48, 66, 72},
-		MSP_CARRIER(6.5), MSP_CARRIER(6.5),
-		0x00c6, 0x0480, 0x0000, 0x3000
-	},{	/* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
-		{-2, -8, -10, 10, 50, 86},
-		{3, 18, 27, 48, 66, 72},
-		MSP_CARRIER(5.5), MSP_CARRIER(5.5),
-		0x00d0, 0x0040, 0x0120, 0x3000
-	},{	/* NICAM/FM -- I (6.0/6.552) */
-		{2, 4, -6, -4, 40, 94},
-		{3, 18, 27, 48, 66, 72},
-		MSP_CARRIER(6.0), MSP_CARRIER(6.0),
-		0x00d0, 0x0040, 0x0120, 0x3000
-	},{	/* NICAM/AM -- L (6.5/5.85) */
-		{-2, -8, -10, 10, 50, 86},
-		{-4, -12, -9, 23, 79, 126},
-		MSP_CARRIER(6.5), MSP_CARRIER(6.5),
-		0x00c6, 0x0140, 0x0120, 0x7c03
-	},
-};
-
-struct msp3400c_carrier_detect {
-	int   cdo;
-	char *name;
-};
-
-static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
-	/* main carrier */
-	{ MSP_CARRIER(4.5),        "4.5   NTSC"                   },
-	{ MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
-	{ MSP_CARRIER(6.0),        "6.0   PAL I"                  },
-	{ MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
-};
-
-static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
-	/* PAL B/G */
-	{ MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
-	{ MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
-};
-
-static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
-	/* PAL SAT / SECAM */
-	{ MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
-	{ MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
-	{ MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
-	{ MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
-	{ MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
-	{ MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
-};
-
-/* ------------------------------------------------------------------------ */
-
-static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
-{
-	msp_write_dem(client, 0x0093, cdo1 & 0xfff);
-	msp_write_dem(client, 0x009b, cdo1 >> 12);
-	msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
-	msp_write_dem(client, 0x00ab, cdo2 >> 12);
-	msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
-}
-
-static void msp_set_mute(struct i2c_client *client)
+void msp_set_mute(struct i2c_client *client)
 {
 	msp_dbg1("mute audio\n");
 	msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
 	msp_write_dsp(client, 0x0006, 0); /* headphones */
 }
 
-static void msp_set_audio(struct i2c_client *client)
+void msp_set_audio(struct i2c_client *client)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
 	int val = 0, bal = 0, bass, treble;
@@ -529,647 +334,7 @@ static void msp_set_audio(struct i2c_client *client)
 	msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
 }
 
-static void msp3400c_setmode(struct i2c_client *client, int type)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-	int i;
-
-	msp_dbg1("setmode: %d\n",type);
-	state->mode       = type;
-	state->audmode    = V4L2_TUNER_MODE_MONO;
-	state->rxsubchans = V4L2_TUNER_SUB_MONO;
-
-	msp_write_dem(client, 0x00bb,          /* ad_cv */
-		       msp3400c_init_data[type].ad_cv);
-
-	for (i = 5; i >= 0; i--)                                   /* fir 1 */
-		msp_write_dem(client, 0x0001,
-			       msp3400c_init_data[type].fir1[i]);
-
-	msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
-	msp_write_dem(client, 0x0005, 0x0040);
-	msp_write_dem(client, 0x0005, 0x0000);
-	for (i = 5; i >= 0; i--)
-		msp_write_dem(client, 0x0005,
-			       msp3400c_init_data[type].fir2[i]);
-
-	msp_write_dem(client, 0x0083,     /* MODE_REG */
-		       msp3400c_init_data[type].mode_reg);
-
-	msp3400c_setcarrier(client, msp3400c_init_data[type].cdo1,
-			    msp3400c_init_data[type].cdo2);
-
-	msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/
-
-	if (dolby) {
-		msp_write_dsp(client, 0x0008,
-			       0x0520); /* I2S1 */
-		msp_write_dsp(client, 0x0009,
-			       0x0620); /* I2S2 */
-		msp_write_dsp(client, 0x000b,
-			       msp3400c_init_data[type].dfp_src);
-	} else {
-		msp_write_dsp(client, 0x0008,
-			       msp3400c_init_data[type].dfp_src);
-		msp_write_dsp(client, 0x0009,
-			       msp3400c_init_data[type].dfp_src);
-		msp_write_dsp(client, 0x000b,
-			       msp3400c_init_data[type].dfp_src);
-	}
-	msp_write_dsp(client, 0x000a,
-		       msp3400c_init_data[type].dfp_src);
-	msp_write_dsp(client, 0x000e,
-		       msp3400c_init_data[type].dfp_matrix);
-
-	if (HAVE_NICAM(state)) {
-		/* nicam prescale */
-		msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */
-	}
-}
-
-/* given a bitmask of VIDEO_SOUND_XXX returns the "best" in the bitmask */
-static int msp3400c_best_video_sound(int rxsubchans)
-{
-	if (rxsubchans & V4L2_TUNER_SUB_STEREO)
-		return V4L2_TUNER_MODE_STEREO;
-	if (rxsubchans & V4L2_TUNER_SUB_LANG1)
-		return V4L2_TUNER_MODE_LANG1;
-	if (rxsubchans & V4L2_TUNER_SUB_LANG2)
-		return V4L2_TUNER_MODE_LANG2;
-	return V4L2_TUNER_MODE_MONO;
-}
-
-/* turn on/off nicam + stereo */
-static void msp3400c_setstereo(struct i2c_client *client, int mode)
-{
-	static char *strmode[] = { "0", "mono", "stereo", "3",
-		"lang1", "5", "6", "7", "lang2"
-	};
-	struct msp_state *state = i2c_get_clientdata(client);
-	int nicam = 0;		/* channel source: FM/AM or nicam */
-	int src = 0;
-
-	if (state->opmode == OPMODE_AUTOSELECT) {
-		/* this method would break everything, let's make sure
-		 * it's never called
-		 */
-		msp_dbg1("setstereo called with mode=%d instead of set_source (ignored)\n",
-		     mode);
-		return;
-	}
-
-	/* switch demodulator */
-	switch (state->mode) {
-	case MSP_MODE_FM_TERRA:
-		msp_dbg1("FM setstereo: %s\n", strmode[mode]);
-		msp3400c_setcarrier(client,state->second,state->main);
-		switch (mode) {
-		case V4L2_TUNER_MODE_STEREO:
-			msp_write_dsp(client, 0x000e, 0x3001);
-			break;
-		case V4L2_TUNER_MODE_MONO:
-		case V4L2_TUNER_MODE_LANG1:
-		case V4L2_TUNER_MODE_LANG2:
-			msp_write_dsp(client, 0x000e, 0x3000);
-			break;
-		}
-		break;
-	case MSP_MODE_FM_SAT:
-		msp_dbg1("SAT setstereo: %s\n", strmode[mode]);
-		switch (mode) {
-		case V4L2_TUNER_MODE_MONO:
-			msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
-			break;
-		case V4L2_TUNER_MODE_STEREO:
-			msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
-			break;
-		case V4L2_TUNER_MODE_LANG1:
-			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
-			break;
-		case V4L2_TUNER_MODE_LANG2:
-			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
-			break;
-		}
-		break;
-	case MSP_MODE_FM_NICAM1:
-	case MSP_MODE_FM_NICAM2:
-	case MSP_MODE_AM_NICAM:
-		msp_dbg1("NICAM setstereo: %s\n",strmode[mode]);
-		msp3400c_setcarrier(client,state->second,state->main);
-		if (state->nicam_on)
-			nicam=0x0100;
-		break;
-	case MSP_MODE_BTSC:
-		msp_dbg1("BTSC setstereo: %s\n",strmode[mode]);
-		nicam=0x0300;
-		break;
-	case MSP_MODE_EXTERN:
-		msp_dbg1("extern setstereo: %s\n",strmode[mode]);
-		nicam = 0x0200;
-		break;
-	case MSP_MODE_FM_RADIO:
-		msp_dbg1("FM-Radio setstereo: %s\n",strmode[mode]);
-		break;
-	default:
-		msp_dbg1("mono setstereo\n");
-		return;
-	}
-
-	/* switch audio */
-	switch (msp3400c_best_video_sound(mode)) {
-	case V4L2_TUNER_MODE_STEREO:
-		src = 0x0020 | nicam;
-#if 0
-		/* spatial effect */
-		msp_write_dsp(client, 0x0005,0x4000);
-#endif
-		break;
-	case V4L2_TUNER_MODE_MONO:
-		if (state->mode == MSP_MODE_AM_NICAM) {
-			msp_dbg1("switching to AM mono\n");
-			/* AM mono decoding is handled by tuner, not MSP chip */
-			/* SCART switching control register */
-			msp_set_scart(client,SCART_MONO,0);
-			src = 0x0200;
-			break;
-		}
-	case V4L2_TUNER_MODE_LANG1:
-		src = 0x0000 | nicam;
-		break;
-	case V4L2_TUNER_MODE_LANG2:
-		src = 0x0010 | nicam;
-		break;
-	}
-	msp_dbg1("setstereo final source/matrix = 0x%x\n", src);
-
-	if (dolby) {
-		msp_write_dsp(client, 0x0008,0x0520);
-		msp_write_dsp(client, 0x0009,0x0620);
-		msp_write_dsp(client, 0x000a,src);
-		msp_write_dsp(client, 0x000b,src);
-	} else {
-		msp_write_dsp(client, 0x0008,src);
-		msp_write_dsp(client, 0x0009,src);
-		msp_write_dsp(client, 0x000a,src);
-		msp_write_dsp(client, 0x000b,src);
-	}
-}
-
-static void msp3400c_print_mode(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-
-	if (state->main == state->second) {
-		msp_dbg1("mono sound carrier: %d.%03d MHz\n",
-		       state->main/910000,(state->main/910)%1000);
-	} else {
-		msp_dbg1("main sound carrier: %d.%03d MHz\n",
-		       state->main/910000,(state->main/910)%1000);
-	}
-	if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
-		msp_dbg1("NICAM/FM carrier   : %d.%03d MHz\n",
-		       state->second/910000,(state->second/910)%1000);
-	if (state->mode == MSP_MODE_AM_NICAM)
-		msp_dbg1("NICAM/AM carrier   : %d.%03d MHz\n",
-		       state->second/910000,(state->second/910)%1000);
-	if (state->mode == MSP_MODE_FM_TERRA &&
-	    state->main != state->second) {
-		msp_dbg1("FM-stereo carrier : %d.%03d MHz\n",
-		       state->second/910000,(state->second/910)%1000);
-	}
-}
-
-static void msp3400c_restore_dfp(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-	int i;
-
-	for (i = 0; i < DFP_COUNT; i++) {
-		if (-1 == state->dfp_regs[i])
-			continue;
-		msp_write_dsp(client, i, state->dfp_regs[i]);
-	}
-}
-
-/* if the dfp_regs is set, set what's in there. Otherwise, set the default value */
-static int msp34xxg_write_dfp_with_default(struct i2c_client *client,
-					int addr, int default_value)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-	int value = default_value;
-	if (addr < DFP_COUNT && -1 != state->dfp_regs[addr])
-		value = state->dfp_regs[addr];
-	return msp_write_dsp(client, addr, value);
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int autodetect_stereo(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-	int val;
-	int rxsubchans = state->rxsubchans;
-	int newnicam   = state->nicam_on;
-	int update = 0;
-
-	switch (state->mode) {
-	case MSP_MODE_FM_TERRA:
-		val = msp_read_dsp(client, 0x18);
-		if (val > 32767)
-			val -= 65536;
-		msp_dbg2("stereo detect register: %d\n",val);
-		if (val > 4096) {
-			rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
-		} else if (val < -4096) {
-			rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
-		} else {
-			rxsubchans = V4L2_TUNER_SUB_MONO;
-		}
-		newnicam = 0;
-		break;
-	case MSP_MODE_FM_NICAM1:
-	case MSP_MODE_FM_NICAM2:
-	case MSP_MODE_AM_NICAM:
-		val = msp_read_dem(client, 0x23);
-		msp_dbg2("nicam sync=%d, mode=%d\n",
-			val & 1, (val & 0x1e) >> 1);
-
-		if (val & 1) {
-			/* nicam synced */
-			switch ((val & 0x1e) >> 1)  {
-			case 0:
-			case 8:
-				rxsubchans = V4L2_TUNER_SUB_STEREO;
-				break;
-			case 1:
-			case 9:
-				rxsubchans = V4L2_TUNER_SUB_MONO
-					| V4L2_TUNER_SUB_LANG1;
-				break;
-			case 2:
-			case 10:
-				rxsubchans = V4L2_TUNER_SUB_MONO
-					| V4L2_TUNER_SUB_LANG1
-					| V4L2_TUNER_SUB_LANG2;
-				break;
-			default:
-				rxsubchans = V4L2_TUNER_SUB_MONO;
-				break;
-			}
-			newnicam=1;
-		} else {
-			newnicam = 0;
-			rxsubchans = V4L2_TUNER_SUB_MONO;
-		}
-		break;
-	case MSP_MODE_BTSC:
-		val = msp_read_dem(client, 0x200);
-		msp_dbg2("status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
-			val,
-			(val & 0x0002) ? "no"     : "yes",
-			(val & 0x0004) ? "no"     : "yes",
-			(val & 0x0040) ? "stereo" : "mono",
-			(val & 0x0080) ? ", nicam 2nd mono" : "",
-			(val & 0x0100) ? ", bilingual/SAP"  : "");
-		rxsubchans = V4L2_TUNER_SUB_MONO;
-		if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO;
-		if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1;
-		break;
-	}
-	if (rxsubchans != state->rxsubchans) {
-		update = 1;
-		msp_dbg1("watch: rxsubchans %d => %d\n",
-			state->rxsubchans,rxsubchans);
-		state->rxsubchans = rxsubchans;
-	}
-	if (newnicam != state->nicam_on) {
-		update = 1;
-		msp_dbg1("watch: nicam %d => %d\n",
-			state->nicam_on,newnicam);
-		state->nicam_on = newnicam;
-	}
-	return update;
-}
-
-/*
- * A kernel thread for msp3400 control -- we don't want to block the
- * in the ioctl while doing the sound carrier & stereo detect
- */
-
-static int msp_sleep(struct msp_state *state, int timeout)
-{
-	DECLARE_WAITQUEUE(wait, current);
-
-	add_wait_queue(&state->wq, &wait);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	if (!(state->rmmod || signal_pending(current))) {
-#else
-	if (!kthread_should_stop()) {
-#endif
-		if (timeout < 0) {
-			set_current_state(TASK_INTERRUPTIBLE);
-			schedule();
-		} else {
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)
-			schedule_timeout_interruptible
-						(msecs_to_jiffies(timeout));
-#else
-			set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(msecs_to_jiffies(timeout));
-#endif
-		}
-	}
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12)) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
-	if (current->flags & PF_FREEZE) {
-		refrigerator (PF_FREEZE);
-	}
-#endif
-
-	remove_wait_queue(&state->wq, &wait);
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12)
-	try_to_freeze();
-#endif
-	return state->restart;
-}
-
-/* stereo/multilang monitoring */
-static void watch_stereo(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-
-	if (autodetect_stereo(client)) {
-		if (state->stereo & V4L2_TUNER_MODE_STEREO)
-			msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO);
-		else if (state->stereo & VIDEO_SOUND_LANG1)
-			msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1);
-		else
-			msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
-	}
-
-	if (once)
-		state->watch_stereo = 0;
-}
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-static void msp_setup_thread(struct msp_state *state)
-{
-	daemonize();
-	exit_files(current);
-	reparent_to_init();
-
-	spin_lock_irq(SIGMASK_LOCK(current));
-	sigfillset(&current->blocked);
-	spin_unlock_irq(SIGMASK_LOCK(current));
-	strcpy(current->comm, "msp3400");
-
-	state->kthread = current;
-	if (state->notify != NULL)
-		up(state->notify);
-}
-#endif
-
-static int msp3400c_thread(void *data)
-{
-	struct i2c_client *client = data;
-	struct msp_state *state = i2c_get_clientdata(client);
-	struct msp3400c_carrier_detect *cd;
-	int count, max1,max2,val1,val2, val,this;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	msp_setup_thread(state);
-#endif
-
-	msp_info("msp3400 daemon started\n");
-	for (;;) {
-		msp_dbg2("msp3400 thread: sleep\n");
-		msp_sleep(state, -1);
-		msp_dbg2("msp3400 thread: wakeup\n");
-
-	restart:
-		msp_dbg1("thread: restart scan\n");
-		state->restart = 0;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		if (state->rmmod || signal_pending(current))
-#else
-		if (kthread_should_stop())
-#endif
-			break;
-
-		if (VIDEO_MODE_RADIO == state->norm ||
-		    MSP_MODE_EXTERN  == state->mode) {
-			/* no carrier scan, just unmute */
-			msp_info("thread: no carrier scan\n");
-			msp_set_audio(client);
-			continue;
-		}
-
-		/* mute */
-		msp_set_mute(client);
-		msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
-		val1 = val2 = 0;
-		max1 = max2 = -1;
-		state->watch_stereo = 0;
-
-		/* some time for the tuner to sync */
-		if (msp_sleep(state,200))
-			goto restart;
-
-		/* carrier detect pass #1 -- main carrier */
-		cd = msp3400c_carrier_detect_main;
-		count = ARRAY_SIZE(msp3400c_carrier_detect_main);
-
-		if (amsound && (state->norm == VIDEO_MODE_SECAM)) {
-			/* autodetect doesn't work well with AM ... */
-			max1 = 3;
-			count = 0;
-			msp_dbg1("AM sound override\n");
-		}
-
-		for (this = 0; this < count; this++) {
-			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
-			if (msp_sleep(state,100))
-				goto restart;
-			val = msp_read_dsp(client, 0x1b);
-			if (val > 32767)
-				val -= 65536;
-			if (val1 < val)
-				val1 = val, max1 = this;
-			msp_dbg1("carrier1 val: %5d / %s\n", val,cd[this].name);
-		}
-
-		/* carrier detect pass #2 -- second (stereo) carrier */
-		switch (max1) {
-		case 1: /* 5.5 */
-			cd = msp3400c_carrier_detect_55;
-			count = ARRAY_SIZE(msp3400c_carrier_detect_55);
-			break;
-		case 3: /* 6.5 */
-			cd = msp3400c_carrier_detect_65;
-			count = ARRAY_SIZE(msp3400c_carrier_detect_65);
-			break;
-		case 0: /* 4.5 */
-		case 2: /* 6.0 */
-		default:
-			cd = NULL;
-			count = 0;
-			break;
-		}
-
-		if (amsound && (state->norm == VIDEO_MODE_SECAM)) {
-			/* autodetect doesn't work well with AM ... */
-			cd = NULL;
-			count = 0;
-			max2 = 0;
-		}
-		for (this = 0; this < count; this++) {
-			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
-			if (msp_sleep(state,100))
-				goto restart;
-			val = msp_read_dsp(client, 0x1b);
-			if (val > 32767)
-				val -= 65536;
-			if (val2 < val)
-				val2 = val, max2 = this;
-			msp_dbg1("carrier2 val: %5d / %s\n", val,cd[this].name);
-		}
-
-		/* program the msp3400 according to the results */
-		state->main   = msp3400c_carrier_detect_main[max1].cdo;
-		switch (max1) {
-		case 1: /* 5.5 */
-			if (max2 == 0) {
-				/* B/G FM-stereo */
-				state->second = msp3400c_carrier_detect_55[max2].cdo;
-				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
-				state->nicam_on = 0;
-				msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
-				state->watch_stereo = 1;
-			} else if (max2 == 1 && HAVE_NICAM(state)) {
-				/* B/G NICAM */
-				state->second = msp3400c_carrier_detect_55[max2].cdo;
-				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
-				state->nicam_on = 1;
-				msp3400c_setcarrier(client, state->second, state->main);
-				state->watch_stereo = 1;
-			} else {
-				goto no_second;
-			}
-			break;
-		case 2: /* 6.0 */
-			/* PAL I NICAM */
-			state->second = MSP_CARRIER(6.552);
-			msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
-			state->nicam_on = 1;
-			msp3400c_setcarrier(client, state->second, state->main);
-			state->watch_stereo = 1;
-			break;
-		case 3: /* 6.5 */
-			if (max2 == 1 || max2 == 2) {
-				/* D/K FM-stereo */
-				state->second = msp3400c_carrier_detect_65[max2].cdo;
-				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
-				state->nicam_on = 0;
-				msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
-				state->watch_stereo = 1;
-			} else if (max2 == 0 &&
-				   state->norm == VIDEO_MODE_SECAM) {
-				/* L NICAM or AM-mono */
-				state->second = msp3400c_carrier_detect_65[max2].cdo;
-				msp3400c_setmode(client, MSP_MODE_AM_NICAM);
-				state->nicam_on = 0;
-				msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
-				msp3400c_setcarrier(client, state->second, state->main);
-				/* volume prescale for SCART (AM mono input) */
-				msp_write_dsp(client, 0x000d, 0x1900);
-				state->watch_stereo = 1;
-			} else if (max2 == 0 && HAVE_NICAM(state)) {
-				/* D/K NICAM */
-				state->second = msp3400c_carrier_detect_65[max2].cdo;
-				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
-				state->nicam_on = 1;
-				msp3400c_setcarrier(client, state->second, state->main);
-				state->watch_stereo = 1;
-			} else {
-				goto no_second;
-			}
-			break;
-		case 0: /* 4.5 */
-		default:
-		no_second:
-			state->second = msp3400c_carrier_detect_main[max1].cdo;
-			msp3400c_setmode(client, MSP_MODE_FM_TERRA);
-			state->nicam_on = 0;
-			msp3400c_setcarrier(client, state->second, state->main);
-			state->rxsubchans = V4L2_TUNER_SUB_MONO;
-			msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
-			break;
-		}
-
-		/* unmute */
-		msp_set_audio(client);
-		msp3400c_restore_dfp(client);
-
-		if (debug)
-			msp3400c_print_mode(client);
-
-		/* monitor tv audio mode */
-		while (state->watch_stereo) {
-			if (msp_sleep(state,5000))
-				goto restart;
-			watch_stereo(client);
-		}
-	}
-	msp_dbg1("thread: exit\n");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	state->kthread = NULL;
-
-	if (state->notify != NULL)
-		up(state->notify);
-#endif
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-/* this one uses the automatic sound standard detection of newer           */
-/* msp34xx chip versions                                                   */
-
-static struct MODES {
-	int retval;
-	int main, second;
-	char *name;
-} modelist[] = {
-	{ 0x0000, 0, 0, "could not detect sound standard" },
-	{ 0x0001, 0, 0, "autodetect started" },
-	{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
-	{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
-	{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
-	{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
-	{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
-	{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
-	{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
-	{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
-	{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
-	{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
-	{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
-	{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
-	{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
-	{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
-	{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
-	{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
-	{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
-	{     -1, 0, 0, NULL }, /* EOF */
-};
-
-static inline const char *msp_standard_mode_name(int mode)
-{
-	int i;
-	for (i = 0; modelist[i].name != NULL; i++)
-		if (modelist[i].retval == mode)
-			return modelist[i].name;
-	return "unknown";
-}
-
-static int msp_modus(struct i2c_client *client, int norm)
+int msp_modus(struct i2c_client *client, int norm)
 {
 	switch (norm) {
 	case VIDEO_MODE_PAL:
@@ -1199,7 +364,7 @@ static int msp_modus(struct i2c_client *client, int norm)
 	}
 }
 
-static int msp_standard(int norm)
+int msp_standard(int norm)
 {
 	switch (norm) {
 	case VIDEO_MODE_PAL:
@@ -1215,416 +380,77 @@ static int msp_standard(int norm)
 	}
 }
 
-static int msp3410d_thread(void *data)
-{
-	struct i2c_client *client = data;
-	struct msp_state *state = i2c_get_clientdata(client);
-	int mode,val,i,std;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	msp_setup_thread(state);
-#endif
-	msp_info("msp3410 daemon started\n");
-
-	for (;;) {
-		msp_dbg2("msp3410 thread: sleep\n");
-		msp_sleep(state,-1);
-		msp_dbg2("msp3410 thread: wakeup\n");
+/* ------------------------------------------------------------------------ */
 
-	restart:
-		msp_dbg1("thread: restart scan\n");
-		state->restart = 0;
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		if (state->rmmod || signal_pending(current))
-#else
-		if (kthread_should_stop())
-#endif
-			break;
-
-		if (state->mode == MSP_MODE_EXTERN) {
-			/* no carrier scan needed, just unmute */
-			msp_dbg1("thread: no carrier scan\n");
-			msp_set_audio(client);
-			continue;
-		}
-
-		/* put into sane state (and mute) */
-		msp_reset(client);
-
-		/* some time for the tuner to sync */
-		if (msp_sleep(state,200))
-			goto restart;
-
-		/* start autodetect */
-		mode = msp_modus(client, state->norm);
-		std  = msp_standard(state->norm);
-		msp_write_dem(client, 0x30, mode);
-		msp_write_dem(client, 0x20, std);
-		state->watch_stereo = 0;
-
-		if (debug)
-			msp_dbg1("setting mode: %s (0x%04x)\n",
-			       msp_standard_mode_name(std) ,std);
-
-		if (std != 1) {
-			/* programmed some specific mode */
-			val = std;
-		} else {
-			/* triggered autodetect */
-			for (;;) {
-				if (msp_sleep(state,100))
-					goto restart;
-
-				/* check results */
-				val = msp_read_dem(client, 0x7e);
-				if (val < 0x07ff)
-					break;
-				msp_dbg1("detection still in progress\n");
-			}
-		}
-		for (i = 0; modelist[i].name != NULL; i++)
-			if (modelist[i].retval == val)
-				break;
-		msp_dbg1("current mode: %s (0x%04x)\n",
-			modelist[i].name ? modelist[i].name : "unknown",
-			val);
-		state->main   = modelist[i].main;
-		state->second = modelist[i].second;
-
-		if (amsound && (state->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
-			/* autodetection has failed, let backup */
-			msp_dbg1("autodetection failed,"
-				" switching to backup mode: %s (0x%04x)\n",
-				modelist[8].name ? modelist[8].name : "unknown",val);
-			val = 0x0009;
-			msp_write_dem(client, 0x20, val);
-		}
-
-		/* set various prescales */
-		msp_write_dsp(client, 0x0d, 0x1900); /* scart */
-		msp_write_dsp(client, 0x0e, 0x2403); /* FM */
-		msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
-
-		/* set stereo */
-		switch (val) {
-		case 0x0008: /* B/G NICAM */
-		case 0x000a: /* I NICAM */
-			if (val == 0x0008)
-				state->mode = MSP_MODE_FM_NICAM1;
-			else
-				state->mode = MSP_MODE_FM_NICAM2;
-			/* just turn on stereo */
-			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
-			state->nicam_on = 1;
-			state->watch_stereo = 1;
-			msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
-			break;
-		case 0x0009:
-			state->mode = MSP_MODE_AM_NICAM;
-			state->rxsubchans = V4L2_TUNER_SUB_MONO;
-			state->nicam_on = 1;
-			msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO);
-			state->watch_stereo = 1;
-			break;
-		case 0x0020: /* BTSC */
-			/* just turn on stereo */
-			state->mode = MSP_MODE_BTSC;
-			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
-			state->nicam_on = 0;
-			state->watch_stereo = 1;
-			msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
-			break;
-		case 0x0040: /* FM radio */
-			state->mode   = MSP_MODE_FM_RADIO;
-			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
-			state->audmode = V4L2_TUNER_MODE_STEREO;
-			state->nicam_on = 0;
-			state->watch_stereo = 0;
-			/* not needed in theory if HAVE_RADIO(), but
-			   short programming enables carrier mute */
-			msp3400c_setmode(client,MSP_MODE_FM_RADIO);
-			msp3400c_setcarrier(client, MSP_CARRIER(10.7),
-					    MSP_CARRIER(10.7));
-			/* scart routing */
-			msp_set_scart(client,SCART_IN2,0);
-#if 0
-			/* radio from SCART_IN2 */
-			msp_write_dsp(client, 0x08, 0x0220);
-			msp_write_dsp(client, 0x09, 0x0220);
-			msp_write_dsp(client, 0x0b, 0x0220);
-#else
-			/* msp34xx does radio decoding */
-			msp_write_dsp(client, 0x08, 0x0020);
-			msp_write_dsp(client, 0x09, 0x0020);
-			msp_write_dsp(client, 0x0b, 0x0020);
-#endif
-			break;
-		case 0x0003:
-		case 0x0004:
-		case 0x0005:
-			state->mode   = MSP_MODE_FM_TERRA;
-			state->rxsubchans = V4L2_TUNER_SUB_MONO;
-			state->audmode = V4L2_TUNER_MODE_MONO;
-			state->nicam_on = 0;
-			state->watch_stereo = 1;
-			break;
-		}
+static void msp_setup_thread(struct msp_state *state)
+{
+	daemonize();
+	exit_files(current);
+	reparent_to_init();
 
-		/* unmute, restore misc registers */
-		msp_set_audio(client);
-		msp_write_dsp(client, 0x13, state->acb);
-		msp_write_dem(client, 0x40, state->i2s_mode);
-		msp3400c_restore_dfp(client);
-
-		/* monitor tv audio mode */
-		while (state->watch_stereo) {
-			if (msp_sleep(state,5000))
-				goto restart;
-			watch_stereo(client);
-		}
-	}
-	msp_dbg1("thread: exit\n");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	state->kthread = NULL;
+	spin_lock_irq(SIGMASK_LOCK(current));
+	sigfillset(&current->blocked);
+	spin_unlock_irq(SIGMASK_LOCK(current));
+	strcpy(current->comm, "msp3400");
 
+	state->kthread = current;
 	if (state->notify != NULL)
 		up(state->notify);
-#endif
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-/* msp34xxG + (autoselect no-thread)                                          */
-/* this one uses both automatic standard detection and automatic sound     */
-/* select which are available in the newer G versions                      */
-/* struct msp: only norm, acb and source are really used in this mode      */
-
-/* set the same 'source' for the loudspeaker, scart and quasi-peak detector
- * the value for source is the same as bit 15:8 of DFP registers 0x08,
- * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
- *
- * this function replaces msp3400c_setstereo
- */
-static void msp34xxg_set_source(struct i2c_client *client, int source)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-
-	/* fix matrix mode to stereo and let the msp choose what
-	 * to output according to 'source', as recommended
-	 * for MONO (source==0) downmixing set bit[7:0] to 0x30
-	 */
-	int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20);
-
-	msp_dbg1("set source to %d (0x%x)\n", source, value);
-	/* Loudspeaker Output */
-	msp_write_dsp(client, 0x08, value);
-	/* SCART1 DA Output */
-	msp_write_dsp(client, 0x0a, value);
-	/* Quasi-peak detector */
-	msp_write_dsp(client, 0x0c, value);
-	/*
-	 * set identification threshold. Personally, I
-	 * I set it to a higher value that the default
-	 * of 0x190 to ignore noisy stereo signals.
-	 * this needs tuning. (recommended range 0x00a0-0x03c0)
-	 * 0x7f0 = forced mono mode
-	 */
-	/* a2 threshold for stereo/bilingual */
-	msp_write_dem(client, 0x22, stereo_threshold);
-	state->source = source;
 }
+#endif
 
-/* (re-)initialize the msp34xxg, according to the current norm in state->norm
- * return 0 if it worked, -1 if it failed
- */
-static int msp34xxg_reset(struct i2c_client *client)
+static void msp_wake_thread(struct i2c_client *client)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
-	int modus, std;
-
-	if (msp_reset(client))
-		return -1;
-
-	/* make sure that input/output is muted (paranoid mode) */
-	/* ACB, mute DSP input, mute SCART 1 */
-	if (msp_write_dsp(client, 0x13, 0x0f20))
-		return -1;
-
-	msp_write_dem(client, 0x40, state->i2s_mode);
 
-	/* step-by-step initialisation, as described in the manual */
-	modus = msp_modus(client, state->norm);
-	std   = msp_standard(state->norm);
-	modus &= ~0x03; /* STATUS_CHANGE = 0 */
-	modus |= 0x01;  /* AUTOMATIC_SOUND_DETECTION = 1 */
-	if (msp_write_dem(client, 0x30, modus))
-		return -1;
-	if (msp_write_dem(client, 0x20, std))
-		return -1;
-
-	/* write the dfps that may have an influence on
-	   standard/audio autodetection right now */
-	msp34xxg_set_source(client, state->source);
-
-	/* AM/FM Prescale, default: [15:8] 75khz deviation */
-	if (msp34xxg_write_dfp_with_default(client, 0x0e, 0x3000))
-		return -1;
-
-	/* NICAM Prescale, default: 9db gain (as recommended) */
-	if (msp34xxg_write_dfp_with_default(client, 0x10, 0x5a00))
-		return -1;
-
-	return 0;
+	if (NULL == state->kthread)
+		return;
+	msp_set_mute(client);
+	state->watch_stereo = 0;
+	state->restart = 1;
+	wake_up_interruptible(&state->wq);
 }
 
-static int msp34xxg_thread(void *data)
+int msp_sleep(struct msp_state *state, int timeout)
 {
-	struct i2c_client *client = data;
-	struct msp_state *state = i2c_get_clientdata(client);
-	int val, std, i;
+	DECLARE_WAITQUEUE(wait, current);
 
+	add_wait_queue(&state->wq, &wait);
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	msp_setup_thread(state);
+	if (!(state->rmmod || signal_pending(current))) {
+#else
+	if (!kthread_should_stop()) {
 #endif
-	msp_info("msp34xxg daemon started\n");
-
-	state->source = 1; /* default */
-	for (;;) {
-		msp_dbg2("msp34xxg thread: sleep\n");
-		msp_sleep(state, -1);
-		msp_dbg2("msp34xxg thread: wakeup\n");
-
-	restart:
-		msp_dbg1("thread: restart scan\n");
-		state->restart = 0;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-		if (state->rmmod || signal_pending(current))
+		if (timeout < 0) {
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule();
+		} else {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)
+			schedule_timeout_interruptible
+						(msecs_to_jiffies(timeout));
 #else
-		if (kthread_should_stop())
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule_timeout(msecs_to_jiffies(timeout));
 #endif
-			break;
-
-		/* setup the chip*/
-		msp34xxg_reset(client);
-		std = standard;
-		if (std != 0x01)
-			goto unmute;
-
-		/* watch autodetect */
-		msp_dbg1("triggered autodetect, waiting for result\n");
-		for (i = 0; i < 10; i++) {
-			if (msp_sleep(state, 100))
-				goto restart;
-
-			/* check results */
-			val = msp_read_dem(client, 0x7e);
-			if (val < 0x07ff) {
-				std = val;
-				break;
-			}
-			msp_dbg1("detection still in progress\n");
 		}
-		if (std == 1) {
-			msp_dbg1("detection still in progress after 10 tries. giving up.\n");
-			continue;
-		}
-
-	unmute:
-		state->mode = std;
-		msp_dbg1("current mode: %s (0x%04x)\n",
-			msp_standard_mode_name(std), std);
-
-		/* unmute: dispatch sound to scart output, set scart volume */
-		msp_set_audio(client);
-
-		/* restore ACB */
-		if (msp_write_dsp(client, 0x13, state->acb))
-			return -1;
-
-		msp_write_dem(client, 0x40, state->i2s_mode);
-	}
-	msp_dbg1("thread: exit\n");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-	state->kthread = NULL;
-
-	if (state->notify != NULL)
-		up(state->notify);
-#endif
-	return 0;
-}
-
-static void msp34xxg_detect_stereo(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-
-	int status = msp_read_dem(client, 0x0200);
-	int is_bilingual = status & 0x100;
-	int is_stereo = status & 0x40;
-
-	state->rxsubchans = 0;
-	if (is_stereo)
-		state->rxsubchans |= V4L2_TUNER_SUB_STEREO;
-	else
-		state->rxsubchans |= V4L2_TUNER_SUB_MONO;
-	if (is_bilingual) {
-		state->rxsubchans |= V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
-		/* I'm supposed to check whether it's SAP or not
-		 * and set only LANG2/SAP in this case. Yet, the MSP
-		 * does a lot of work to hide this and handle everything
-		 * the same way. I don't want to work around it so unless
-		 * this is a problem, I'll handle SAP just like lang1/lang2.
-		 */
 	}
-	msp_dbg1("status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
-		status, is_stereo, is_bilingual, state->rxsubchans);
-}
-
-static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
-	int source;
-
-	switch (audmode) {
-	case V4L2_TUNER_MODE_MONO:
-		source = 0; /* mono only */
-		break;
-	case V4L2_TUNER_MODE_STEREO:
-		source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
-		/* problem: that could also mean 2 (scart input) */
-		break;
-	case V4L2_TUNER_MODE_LANG1:
-		source = 3; /* stereo or A */
-		break;
-	case V4L2_TUNER_MODE_LANG2:
-		source = 4; /* stereo or B */
-		break;
-	default:
-		audmode = 0;
-		source  = 1;
-		break;
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12)) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
+	if (current->flags & PF_FREEZE) {
+		refrigerator (PF_FREEZE);
 	}
-	state->audmode = audmode;
-	msp34xxg_set_source(client, source);
-}
-
-
-/* ----------------------------------------------------------------------- */
-
-static void msp_wake_thread(struct i2c_client *client)
-{
-	struct msp_state *state = i2c_get_clientdata(client);
+#endif
 
-	if (NULL == state->kthread)
-		return;
-	msp_set_mute(client);
-	state->watch_stereo = 0;
-	state->restart = 1;
-	wake_up_interruptible(&state->wq);
+	remove_wait_queue(&state->wq, &wait);
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12)
+	try_to_freeze();
+#endif
+	return state->restart;
 }
 
-/* ----------------------------------------------------------------------- */
+/* ------------------------------------------------------------------------ */
 
-static int mode_v4l2_to_v4l1(int rxsubchans)
+static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 {
 	int mode = 0;
 
@@ -1639,7 +465,7 @@ static int mode_v4l2_to_v4l1(int rxsubchans)
 	return mode;
 }
 
-static int mode_v4l1_to_v4l2(int mode)
+static int msp_mode_v4l1_to_v4l2(int mode)
 {
 	if (mode & VIDEO_SOUND_STEREO)
 		return V4L2_TUNER_MODE_STEREO;
@@ -1676,6 +502,15 @@ static struct v4l2_queryctrl msp_qctrl[] = {
 		.flags         = 0,
 		.type          = V4L2_CTRL_TYPE_INTEGER,
 	},{
+		.id            = V4L2_CID_AUDIO_BALANCE,
+		.name          = "Balance",
+		.minimum       = 0,
+		.maximum       = 65535,
+		.step          = 65535/100,
+		.default_value = 32768,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},{
 		.id            = V4L2_CID_AUDIO_MUTE,
 		.name          = "Mute",
 		.minimum       = 0,
@@ -1855,33 +690,6 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 			break;
 		}
 		break;
-#if 1
-		/* work-in-progress:  hook to control the DFP registers */
-	case MSP_SET_DFPREG:
-	{
-		struct msp_dfpreg *r = arg;
-		int i;
-
-		if (r->reg < 0 || r->reg >= DFP_COUNT)
-			return -EINVAL;
-		for (i = 0; i < sizeof(bl_dfp) / sizeof(int); i++)
-			if (r->reg == bl_dfp[i])
-				return -EINVAL;
-		state->dfp_regs[r->reg] = r->value;
-		msp_write_dsp(client, r->reg, r->value);
-		return 0;
-	}
-
-	case MSP_GET_DFPREG:
-	{
-		struct msp_dfpreg *r = arg;
-
-		if (r->reg < 0 || r->reg >= DFP_COUNT)
-			return -EINVAL;
-		r->value = msp_read_dsp(client, r->reg);
-		return 0;
-	}
-#endif /* 1 */
 
 	/* --- v4l ioctls --- */
 	/* take care: bttv does userspace copying, we'll get a
@@ -1905,7 +713,7 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		va->treble = state->treble;
 
 		msp_any_detect_stereo(client);
-		va->mode = mode_v4l2_to_v4l1(state->rxsubchans);
+		va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 		break;
 	}
 
@@ -1921,7 +729,7 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		msp_set_audio(client);
 
 		if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
-			msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode));
+			msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
 		break;
 	}
 
@@ -2231,7 +1039,6 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 	struct i2c_client *client;
 	struct msp_state *state;
 	int (*thread_func)(void *data) = NULL;
-	int i;
 
 	client = kmalloc(sizeof(*client), GFP_KERNEL);
 	if (client == NULL)
@@ -2265,8 +1072,6 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 	state->input = -1;
 	state->muted = 0;
 	state->i2s_mode = 0;
-	for (i = 0; i < DFP_COUNT; i++)
-		state->dfp_regs[i] = -1;
 	init_waitqueue_head(&state->wq);
 
 	state->rev1 = msp_read_dsp(client, 0x1e);
@@ -2274,7 +1079,7 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 		state->rev2 = msp_read_dsp(client, 0x1f);
 	msp_dbg1("rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
 	if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
-		msp_dbg1("error while reading chip version\n");
+		msp_dbg1("not an msp3400 (cannot read chip version)\n");
 		kfree(state);
 		kfree(client);
 		return -1;