V4L/DVB (8703): gspca: Do controls work for spca561 revision 12a.
[safe/jmp/linux-2.6] / drivers / media / video / msp3400-kthreads.c
index 2ee596d..846a14a 100644 (file)
@@ -15,7 +15,8 @@
  *
  * 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
  */
 
 
@@ -23,7 +24,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
-#include <linux/videodev.h>
+#include <linux/freezer.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <media/msp3400.h>
@@ -77,37 +78,37 @@ static struct msp3400c_init_data_dem {
                {75, 19, 36, 35, 39, 40},
                MSP_CARRIER(5.5), MSP_CARRIER(5.5),
                0x00d0, 0x0500, 0x0020, 0x3000
-       },    /* AM (for carrier detect / msp3410) */
+       }, {    /* 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 */
+       }, {    /* 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 */
+       }, {    /* 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 */
+       }, {    /* 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) */
+       }, {    /* 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) */
+       }, {    /* 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) */
+       }, {    /* 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),
@@ -170,7 +171,7 @@ static void msp_set_source(struct i2c_client *client, u16 src)
        msp_write_dsp(client, 0x000a, src);
        msp_write_dsp(client, 0x000b, src);
        msp_write_dsp(client, 0x000c, src);
-       if (state->has_scart23_in_scart2_out)
+       if (state->has_scart2_out)
                msp_write_dsp(client, 0x0041, src);
 }
 
@@ -223,7 +224,9 @@ void msp3400c_set_mode(struct i2c_client *client, int mode)
    nor do they support stereo BTSC. */
 static void msp3400c_set_audmode(struct i2c_client *client)
 {
-       static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" };
+       static char *strmode[] = {
+               "mono", "stereo", "lang2", "lang1", "lang1+lang2"
+       };
        struct msp_state *state = i2c_get_clientdata(client);
        char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
                strmode[state->audmode] : "unknown";
@@ -240,16 +243,25 @@ static void msp3400c_set_audmode(struct i2c_client *client)
                return;
        }
 
-       /* If no second language is available, switch to the first language */
-       if ((audmode == V4L2_TUNER_MODE_LANG2 ||
-            audmode == V4L2_TUNER_MODE_LANG1_LANG2) &&
-           !(state->rxsubchans & V4L2_TUNER_SUB_LANG2))
-               audmode = V4L2_TUNER_MODE_LANG1;
-       /* switch to stereo for stereo transmission, otherwise
-          keep first language */
-       if (audmode == V4L2_TUNER_MODE_LANG1 &&
-           (state->rxsubchans & V4L2_TUNER_SUB_STEREO))
-               audmode = V4L2_TUNER_MODE_STEREO;
+       /* Note: for the C and D revs no NTSC stereo + SAP is possible as
+          the hardware does not support SAP. So the rxsubchans combination
+          of STEREO | LANG2 does not occur. */
+
+       if (state->mode != MSP_MODE_EXTERN) {
+               /* switch to mono if only mono is available */
+               if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
+                       audmode = V4L2_TUNER_MODE_MONO;
+               /* if bilingual */
+               else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
+                       /* and mono or stereo, then fallback to lang1 */
+                       if (audmode == V4L2_TUNER_MODE_MONO ||
+                           audmode == V4L2_TUNER_MODE_STEREO)
+                               audmode = V4L2_TUNER_MODE_LANG1;
+               }
+               /* if stereo, and audmode is not mono, then switch to stereo */
+               else if (audmode != V4L2_TUNER_MODE_MONO)
+                       audmode = V4L2_TUNER_MODE_STEREO;
+       }
 
        /* switch demodulator */
        switch (state->mode) {
@@ -288,19 +300,23 @@ static void msp3400c_set_audmode(struct i2c_client *client)
        case MSP_MODE_FM_NICAM1:
        case MSP_MODE_FM_NICAM2:
        case MSP_MODE_AM_NICAM:
-               v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
+               v4l_dbg(1, msp_debug, client,
+                       "NICAM set_audmode: %s\n", modestr);
                if (state->nicam_on)
                        src = 0x0100;  /* NICAM */
                break;
        case MSP_MODE_BTSC:
-               v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
+               v4l_dbg(1, msp_debug, client,
+                       "BTSC set_audmode: %s\n", modestr);
                break;
        case MSP_MODE_EXTERN:
-               v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
+               v4l_dbg(1, msp_debug, client,
+                       "extern set_audmode: %s\n", modestr);
                src = 0x0200;  /* SCART */
                break;
        case MSP_MODE_FM_RADIO:
-               v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
+               v4l_dbg(1, msp_debug, client,
+                       "FM-Radio set_audmode: %s\n", modestr);
                break;
        default:
                v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
@@ -308,6 +324,7 @@ static void msp3400c_set_audmode(struct i2c_client *client)
        }
 
        /* switch audio */
+       v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
        switch (audmode) {
        case V4L2_TUNER_MODE_STEREO:
        case V4L2_TUNER_MODE_LANG1_LANG2:
@@ -331,7 +348,8 @@ static void msp3400c_set_audmode(struct i2c_client *client)
                src |= 0x0010;
                break;
        }
-       v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
+       v4l_dbg(1, msp_debug, client,
+               "set_audmode final source/matrix = 0x%x\n", src);
 
        msp_set_source(client, src);
 }
@@ -340,22 +358,26 @@ static void msp3400c_print_mode(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
 
-       if (state->main == state->second) {
-               v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
-                      state->main / 910000, (state->main / 910) % 1000);
-       } else {
-               v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
-                      state->main / 910000, (state->main / 910) % 1000);
-       }
+       if (state->main == state->second)
+               v4l_dbg(1, msp_debug, client,
+                       "mono sound carrier: %d.%03d MHz\n",
+                       state->main / 910000, (state->main / 910) % 1000);
+       else
+               v4l_dbg(1, msp_debug, client,
+                       "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)
-               v4l_dbg(1, msp_debug, client, "NICAM/FM carrier  : %d.%03d MHz\n",
-                      state->second / 910000, (state->second/910) % 1000);
+               v4l_dbg(1, msp_debug, client,
+                       "NICAM/FM carrier  : %d.%03d MHz\n",
+                       state->second / 910000, (state->second/910) % 1000);
        if (state->mode == MSP_MODE_AM_NICAM)
-               v4l_dbg(1, msp_debug, client, "NICAM/AM carrier  : %d.%03d MHz\n",
-                      state->second / 910000, (state->second / 910) % 1000);
+               v4l_dbg(1, msp_debug, client,
+                       "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) {
-               v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
-                      state->second / 910000, (state->second / 910) % 1000);
+               v4l_dbg(1, msp_debug, client,
+                       "FM-stereo carrier : %d.%03d MHz\n",
+                       state->second / 910000, (state->second / 910) % 1000);
        }
 }
 
@@ -374,8 +396,9 @@ static int msp3400c_detect_stereo(struct i2c_client *client)
                val = msp_read_dsp(client, 0x18);
                if (val > 32767)
                        val -= 65536;
-               v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
-               if (val > 4096) {
+               v4l_dbg(2, msp_debug, client,
+                       "stereo detect register: %d\n", val);
+               if (val > 8192) {
                        rxsubchans = V4L2_TUNER_SUB_STEREO;
                } else if (val < -4096) {
                        rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
@@ -419,7 +442,8 @@ static int msp3400c_detect_stereo(struct i2c_client *client)
        }
        if (rxsubchans != state->rxsubchans) {
                update = 1;
-               v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\n",
+               v4l_dbg(1, msp_debug, client,
+                       "watch: rxsubchans %02x => %02x\n",
                        state->rxsubchans, rxsubchans);
                state->rxsubchans = rxsubchans;
        }
@@ -441,9 +465,8 @@ static void watch_stereo(struct i2c_client *client)
 {
        struct msp_state *state = i2c_get_clientdata(client);
 
-       if (msp_detect_stereo(client)) {
+       if (msp_detect_stereo(client))
                msp_set_audmode(client);
-       }
 
        if (msp_once)
                state->watch_stereo = 0;
@@ -454,16 +477,16 @@ 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;
-
+       int count, max1, max2, val1, val2, val, i;
 
        v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
+       set_freezable();
        for (;;) {
                v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
                msp_sleep(state, -1);
                v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
 
-       restart:
+restart:
                v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
                state->restart = 0;
                if (kthread_should_stop())
@@ -471,20 +494,24 @@ int msp3400c_thread(void *data)
 
                if (state->radio || MSP_MODE_EXTERN == state->mode) {
                        /* no carrier scan, just unmute */
-                       v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
+                       v4l_dbg(1, msp_debug, client,
+                               "thread: no carrier scan\n");
+                       state->scan_in_progress = 0;
                        msp_set_audio(client);
                        continue;
                }
 
-               /* mute */
-               msp_set_mute(client);
+               /* mute audio */
+               state->scan_in_progress = 1;
+               msp_set_audio(client);
+
                msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
                val1 = val2 = 0;
                max1 = max2 = -1;
                state->watch_stereo = 0;
                state->nicam_on = 0;
 
-               /* some time for the tuner to sync */
+               /* wait for tuner to settle down after a channel change */
                if (msp_sleep(state, 200))
                        goto restart;
 
@@ -499,16 +526,17 @@ int msp3400c_thread(void *data)
                        v4l_dbg(1, msp_debug, client, "AM sound override\n");
                }
 
-               for (this = 0; this < count; this++) {
-                       msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
-                       if (msp_sleep(state,100))
+               for (i = 0; i < count; i++) {
+                       msp3400c_set_carrier(client, cd[i].cdo, cd[i].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;
-                       v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name);
+                               val1 = val, max1 = i;
+                       v4l_dbg(1, msp_debug, client,
+                               "carrier1 val: %5d / %s\n", val, cd[i].name);
                }
 
                /* carrier detect pass #2 -- second (stereo) carrier */
@@ -535,16 +563,17 @@ int msp3400c_thread(void *data)
                        count = 0;
                        max2 = 0;
                }
-               for (this = 0; this < count; this++) {
-                       msp3400c_set_carrier(client, cd[this].cdo, cd[this].cdo);
-                       if (msp_sleep(state,100))
+               for (i = 0; i < count; i++) {
+                       msp3400c_set_carrier(client, cd[i].cdo, cd[i].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;
-                       v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name);
+                               val2 = val, max2 = i;
+                       v4l_dbg(1, msp_debug, client,
+                               "carrier2 val: %5d / %s\n", val, cd[i].name);
                }
 
                /* program the msp3400 according to the results */
@@ -560,7 +589,6 @@ int msp3400c_thread(void *data)
                                /* B/G NICAM */
                                state->second = msp3400c_carrier_detect_55[max2].cdo;
                                msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
-                               msp3400c_set_carrier(client, state->second, state->main);
                                state->nicam_on = 1;
                                state->watch_stereo = 1;
                        } else {
@@ -571,7 +599,6 @@ int msp3400c_thread(void *data)
                        /* PAL I NICAM */
                        state->second = MSP_CARRIER(6.552);
                        msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
-                       msp3400c_set_carrier(client, state->second, state->main);
                        state->nicam_on = 1;
                        state->watch_stereo = 1;
                        break;
@@ -585,13 +612,11 @@ int msp3400c_thread(void *data)
                                /* L NICAM or AM-mono */
                                state->second = msp3400c_carrier_detect_65[max2].cdo;
                                msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
-                               msp3400c_set_carrier(client, state->second, state->main);
                                state->watch_stereo = 1;
                        } else if (max2 == 0 && state->has_nicam) {
                                /* D/K NICAM */
                                state->second = msp3400c_carrier_detect_65[max2].cdo;
                                msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
-                               msp3400c_set_carrier(client, state->second, state->main);
                                state->nicam_on = 1;
                                state->watch_stereo = 1;
                        } else {
@@ -600,29 +625,30 @@ int msp3400c_thread(void *data)
                        break;
                case 0: /* 4.5 */
                default:
-               no_second:
+no_second:
                        state->second = msp3400c_carrier_detect_main[max1].cdo;
                        msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
-                       msp3400c_set_carrier(client, state->second, state->main);
-                       state->rxsubchans = V4L2_TUNER_SUB_MONO;
                        break;
                }
+               msp3400c_set_carrier(client, state->second, state->main);
 
                /* unmute */
-               msp_set_audio(client);
+               state->scan_in_progress = 0;
                msp3400c_set_audmode(client);
+               msp_set_audio(client);
 
                if (msp_debug)
                        msp3400c_print_mode(client);
 
                /* monitor tv audio mode, the first time don't wait
                   so long to get a quick stereo/bilingual result */
-               if (msp_sleep(state, 1000))
-                       goto restart;
+               count = 3;
                while (state->watch_stereo) {
-                       watch_stereo(client);
-                       if (msp_sleep(state, 5000))
+                       if (msp_sleep(state, count ? 1000 : 5000))
                                goto restart;
+                       if (count)
+                               count--;
+                       watch_stereo(client);
                }
        }
        v4l_dbg(1, msp_debug, client, "thread: exit\n");
@@ -634,16 +660,16 @@ int msp3410d_thread(void *data)
 {
        struct i2c_client *client = data;
        struct msp_state *state = i2c_get_clientdata(client);
-       int val, i, std;
+       int val, i, std, count;
 
        v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
-
+       set_freezable();
        for (;;) {
                v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
-               msp_sleep(state,-1);
+               msp_sleep(state, -1);
                v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
 
-       restart:
+restart:
                v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
                state->restart = 0;
                if (kthread_should_stop())
@@ -651,20 +677,20 @@ int msp3410d_thread(void *data)
 
                if (state->mode == MSP_MODE_EXTERN) {
                        /* no carrier scan needed, just unmute */
-                       v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n");
+                       v4l_dbg(1, msp_debug, client,
+                               "thread: no carrier scan\n");
+                       state->scan_in_progress = 0;
                        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;
+               /* mute audio */
+               state->scan_in_progress = 1;
+               msp_set_audio(client);
 
                /* start autodetect. Note: autodetect is not supported for
-                  NTSC-M and radio, hence we force the standard in those cases. */
+                  NTSC-M and radio, hence we force the standard in those
+                  cases. */
                if (state->radio)
                        std = 0x40;
                else
@@ -672,9 +698,14 @@ int msp3410d_thread(void *data)
                state->watch_stereo = 0;
                state->nicam_on = 0;
 
+               /* wait for tuner to settle down after a channel change */
+               if (msp_sleep(state, 200))
+                       goto restart;
+
                if (msp_debug)
-                       v4l_dbg(2, msp_debug, client, "setting standard: %s (0x%04x)\n",
-                              msp_standard_std_name(std), std);
+                       v4l_dbg(2, msp_debug, client,
+                               "setting standard: %s (0x%04x)\n",
+                               msp_standard_std_name(std), std);
 
                if (std != 1) {
                        /* programmed some specific mode */
@@ -690,7 +721,8 @@ int msp3410d_thread(void *data)
                                val = msp_read_dem(client, 0x7e);
                                if (val < 0x07ff)
                                        break;
-                               v4l_dbg(2, msp_debug, client, "detection still in progress\n");
+                               v4l_dbg(2, msp_debug, client,
+                                       "detection still in progress\n");
                        }
                }
                for (i = 0; msp_stdlist[i].name != NULL; i++)
@@ -701,13 +733,15 @@ int msp3410d_thread(void *data)
                state->main   = msp_stdlist[i].main;
                state->second = msp_stdlist[i].second;
                state->std = val;
+               state->rxsubchans = V4L2_TUNER_SUB_MONO;
 
-               if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) &&
-                               (val != 0x0009)) {
+               if (msp_amsound && !state->radio &&
+                   (state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
                        /* autodetection has failed, let backup */
                        v4l_dbg(1, msp_debug, client, "autodetection failed,"
                                " switching to backup standard: %s (0x%04x)\n",
-                               msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val);
+                               msp_stdlist[8].name ?
+                                       msp_stdlist[8].name : "unknown", val);
                        state->std = val = 0x0009;
                        msp_write_dem(client, 0x20, val);
                }
@@ -722,20 +756,17 @@ int msp3410d_thread(void *data)
                        else
                                state->mode = MSP_MODE_FM_NICAM1;
                        /* just turn on stereo */
-                       state->rxsubchans = V4L2_TUNER_SUB_STEREO;
                        state->nicam_on = 1;
                        state->watch_stereo = 1;
                        break;
                case 0x0009:
                        state->mode = MSP_MODE_AM_NICAM;
-                       state->rxsubchans = V4L2_TUNER_SUB_MONO;
                        state->nicam_on = 1;
                        state->watch_stereo = 1;
                        break;
                case 0x0020: /* BTSC */
                        /* The pre-'G' models only have BTSC-mono */
                        state->mode = MSP_MODE_BTSC;
-                       state->rxsubchans = V4L2_TUNER_SUB_MONO;
                        break;
                case 0x0040: /* FM radio */
                        state->mode = MSP_MODE_FM_RADIO;
@@ -745,15 +776,12 @@ int msp3410d_thread(void *data)
                        msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
                        msp3400c_set_carrier(client, MSP_CARRIER(10.7),
                                            MSP_CARRIER(10.7));
-                       /* scart routing (this doesn't belong here I think) */
-                       msp_set_scart(client,SCART_IN2,0);
                        break;
                case 0x0002:
                case 0x0003:
                case 0x0004:
                case 0x0005:
                        state->mode = MSP_MODE_FM_TERRA;
-                       state->rxsubchans = V4L2_TUNER_SUB_MONO;
                        state->watch_stereo = 1;
                        break;
                }
@@ -767,20 +795,20 @@ int msp3410d_thread(void *data)
                if (state->has_i2s_conf)
                        msp_write_dem(client, 0x40, state->i2s_mode);
 
-               /* unmute, restore misc registers */
-               msp_set_audio(client);
-
-               msp_write_dsp(client, 0x13, state->acb);
+               /* unmute */
                msp3400c_set_audmode(client);
+               state->scan_in_progress = 0;
+               msp_set_audio(client);
 
                /* monitor tv audio mode, the first time don't wait
                   so long to get a quick stereo/bilingual result */
-               if (msp_sleep(state, 1000))
-                       goto restart;
+               count = 3;
                while (state->watch_stereo) {
-                       watch_stereo(client);
-                       if (msp_sleep(state, 5000))
+                       if (msp_sleep(state, count ? 1000 : 5000))
                                goto restart;
+                       if (count)
+                               count--;
+                       watch_stereo(client);
                }
        }
        v4l_dbg(1, msp_debug, client, "thread: exit\n");
@@ -803,11 +831,6 @@ static int msp34xxg_modus(struct i2c_client *client)
                v4l_dbg(1, msp_debug, client, "selected radio modus\n");
                return 0x0001;
        }
-
-       if (state->v4l2_std & V4L2_STD_PAL) {
-               v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
-               return 0x7001;
-       }
        if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
                v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
                return 0x4001;
@@ -816,15 +839,15 @@ static int msp34xxg_modus(struct i2c_client *client)
                v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
                return 0x0001;
        }
+       if (state->v4l2_std == V4L2_STD_SECAM_L) {
+               v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n");
+               return 0x6001;
+       }
        if (state->v4l2_std & V4L2_STD_MN) {
                v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
                return 0x2001;
        }
-       if (state->v4l2_std & V4L2_STD_SECAM) {
-               v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
-               return 0x6001;
-       }
-       return 0x0001;
+       return 0x7001;
 }
 
 static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
@@ -837,33 +860,36 @@ static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
                source = 0; /* mono only */
                matrix = 0x30;
                break;
-       case V4L2_TUNER_MODE_LANG1:
-               source = 3; /* stereo or A */
-               matrix = 0x00;
-               break;
        case V4L2_TUNER_MODE_LANG2:
                source = 4; /* stereo or B */
                matrix = 0x10;
                break;
-       case V4L2_TUNER_MODE_STEREO:
        case V4L2_TUNER_MODE_LANG1_LANG2:
-       default:
                source = 1; /* stereo or A|B */
                matrix = 0x20;
                break;
+       case V4L2_TUNER_MODE_LANG1:
+               source = 3; /* stereo or A */
+               matrix = 0x00;
+               break;
+       case V4L2_TUNER_MODE_STEREO:
+       default:
+               source = 3; /* stereo or A */
+               matrix = 0x20;
+               break;
        }
 
-       if (in == MSP_DSP_OUT_TUNER)
+       if (in == MSP_DSP_IN_TUNER)
                source = (source << 8) | 0x20;
        /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
           instead of 11, 12, 13. So we add one for that msp version. */
-       else if (in >= MSP_DSP_OUT_MAIN_AVC && state->has_dolby_pro_logic)
+       else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
                source = ((in + 1) << 8) | matrix;
        else
                source = (in << 8) | matrix;
 
-       v4l_dbg(1, msp_debug, client, "set source to %d (0x%x) for output %02x\n",
-                       in, source, reg);
+       v4l_dbg(1, msp_debug, client,
+               "set source to %d (0x%x) for output %02x\n", in, source, reg);
        msp_write_dsp(client, reg, source);
 }
 
@@ -877,7 +903,7 @@ static void msp34xxg_set_sources(struct i2c_client *client)
        msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
        msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
        msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
-       if (state->has_scart23_in_scart2_out)
+       if (state->has_scart2_out)
                msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
        msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
 }
@@ -895,10 +921,6 @@ static void msp34xxg_reset(struct i2c_client *client)
 
        msp_reset(client);
 
-       /* make sure that input/output is muted (paranoid mode) */
-       /* ACB, mute DSP input, mute SCART 1 */
-       msp_write_dsp(client, 0x13, 0x0f20);
-
        if (state->has_i2s_conf)
                msp_write_dem(client, 0x40, state->i2s_mode);
 
@@ -936,28 +958,39 @@ int msp34xxg_thread(void *data)
        int val, i;
 
        v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
-
+       set_freezable();
        for (;;) {
                v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
                msp_sleep(state, -1);
                v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
 
-       restart:
+restart:
                v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
                state->restart = 0;
                if (kthread_should_stop())
                        break;
 
+               if (state->mode == MSP_MODE_EXTERN) {
+                       /* no carrier scan needed, just unmute */
+                       v4l_dbg(1, msp_debug, client,
+                               "thread: no carrier scan\n");
+                       state->scan_in_progress = 0;
+                       msp_set_audio(client);
+                       continue;
+               }
+
                /* setup the chip*/
                msp34xxg_reset(client);
-               state->std = state->radio ? 0x40 : msp_standard;
+               state->std = state->radio ? 0x40 :
+                       (state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
+               msp_write_dem(client, 0x20, state->std);
+               /* start autodetect */
                if (state->std != 1)
                        goto unmute;
-               /* start autodetect */
-               msp_write_dem(client, 0x20, state->std);
 
                /* watch autodetect */
-               v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n");
+               v4l_dbg(1, msp_debug, client,
+                       "started autodetect, waiting for result\n");
                for (i = 0; i < 10; i++) {
                        if (msp_sleep(state, 100))
                                goto restart;
@@ -968,17 +1001,25 @@ int msp34xxg_thread(void *data)
                                state->std = val;
                                break;
                        }
-                       v4l_dbg(2, msp_debug, client, "detection still in progress\n");
+                       v4l_dbg(2, msp_debug, client,
+                               "detection still in progress\n");
                }
                if (state->std == 1) {
-                       v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n");
+                       v4l_dbg(1, msp_debug, client,
+                               "detection still in progress after 10 tries. giving up.\n");
                        continue;
                }
 
-       unmute:
-               v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n",
+unmute:
+               v4l_dbg(1, msp_debug, client,
+                       "detected standard: %s (0x%04x)\n",
                        msp_standard_std_name(state->std), state->std);
 
+               if (state->std == 9) {
+                       /* AM NICAM mode */
+                       msp_write_dsp(client, 0x0e, 0x7c00);
+               }
+
                /* unmute: dispatch sound to scart output, set scart volume */
                msp_set_audio(client);
 
@@ -1014,6 +1055,9 @@ static int msp34xxg_detect_stereo(struct i2c_client *client)
        int is_stereo = status & 0x40;
        int oldrx = state->rxsubchans;
 
+       if (state->mode == MSP_MODE_EXTERN)
+               return 0;
+
        state->rxsubchans = 0;
        if (is_stereo)
                state->rxsubchans = V4L2_TUNER_SUB_STEREO;
@@ -1023,9 +1067,11 @@ static int msp34xxg_detect_stereo(struct i2c_client *client)
                if (state->std == 0x20)
                        state->rxsubchans |= V4L2_TUNER_SUB_SAP;
                else
-                       state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
+                       state->rxsubchans =
+                               V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
        }
-       v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
+       v4l_dbg(1, msp_debug, client,
+               "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
                status, is_stereo, is_bilingual, state->rxsubchans);
        return (oldrx != state->rxsubchans);
 }
@@ -1036,7 +1082,7 @@ static void msp34xxg_set_audmode(struct i2c_client *client)
 
        if (state->std == 0x20) {
               if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
-                  (state->audmode == V4L2_TUNER_MODE_STEREO ||
+                  (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
                    state->audmode == V4L2_TUNER_MODE_LANG2)) {
                        msp_write_dem(client, 0x20, 0x21);
               } else {