V4L/DVB (3697): More msp3400 and bttv fixes

- remove obsolete VIDIOC_S_INPUT i2c call in bttv
- translate VIDIOCSFREQ to VIDIOC_S_FREQUENCY in i2c call
- improve muting during carrier scan in msp3400
- don't start scan unless really needed.
- no longer reset chip for msp3400c/d.
- remove v4l2 check in tuner-core (radio stops after using the TV)
- add missing VIDIOC_INT_ strings in v4l2-common.c

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/bt8xx/bttv-driver.c

@@ -1025,7 +1025,6 @@ i2c_vidiocschan(struct bttv *btv)
 {
 	v4l2_std_id std = bttv_tvnorms[btv->tvnorm].v4l2_id;
 
-	bttv_call_i2c_clients(btv, VIDIOC_S_INPUT, &btv->input);
 	bttv_call_i2c_clients(btv, VIDIOC_S_STD, &std);
 	if (btv->c.type == BTTV_BOARD_VOODOOTV_FM)
 		bttv_tda9880_setnorm(btv,btv->tvnorm);
@@ -1603,12 +1602,16 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
 	}
 	case VIDIOCSFREQ:
 	{
-		unsigned long *freq = arg;
+		struct v4l2_frequency freq;
+
+		memset(&freq, 0, sizeof(freq));
+		freq.frequency = *(unsigned long *)arg;
 		mutex_lock(&btv->lock);
-		btv->freq=*freq;
-		bttv_call_i2c_clients(btv,VIDIOCSFREQ,freq);
+		freq.type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+		btv->freq = *(unsigned long *)arg;
+		bttv_call_i2c_clients(btv,VIDIOC_S_FREQUENCY,&freq);
 		if (btv->has_matchbox && btv->radio_user)
-			tea5757_set_freq(btv,*freq);
+			tea5757_set_freq(btv,*(unsigned long *)arg);
 		mutex_unlock(&btv->lock);
 		return 0;
 	}

drivers/media/video/msp3400-driver.c

@@ -288,17 +288,19 @@ void msp_set_audio(struct i2c_client *client)
 	struct msp_state *state = i2c_get_clientdata(client);
 	int bal = 0, bass, treble, loudness;
 	int val = 0;
+	int reallymuted = state->muted | state->scan_in_progress;
 
-	if (!state->muted)
+	if (!reallymuted)
 		val = (state->volume * 0x7f / 65535) << 8;
 
-	v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
-		state->muted ? "on" : "off", state->volume);
+	v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
+		state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
+		state->volume);
 
 	msp_write_dsp(client, 0x0000, val);
-	msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
+	msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
 	if (state->has_scart2_out_volume)
-		msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
+		msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
 	if (state->has_headphones)
 		msp_write_dsp(client, 0x0006, val);
 	if (!state->has_sound_processing)
@@ -671,21 +673,23 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		int sc_in = rt->input & 0x7;
 		int sc1_out = rt->output & 0xf;
 		int sc2_out = (rt->output >> 4) & 0xf;
-		u16 val;
+		u16 val, reg;
 
+		if (state->routing.input == rt->input &&
+		    state->routing.output == rt->output)
+			break;
 		state->routing = *rt;
-		if (state->opmode == OPMODE_AUTOSELECT) {
-			val = msp_read_dem(client, 0x30) & ~0x100;
-			msp_write_dem(client, 0x30, val | (tuner ? 0x100 : 0));
-		} else {
-			val = msp_read_dem(client, 0xbb) & ~0x100;
-			msp_write_dem(client, 0xbb, val | (tuner ? 0x100 : 0));
-		}
 		msp_set_scart(client, sc_in, 0);
 		msp_set_scart(client, sc1_out, 1);
 		msp_set_scart(client, sc2_out, 2);
 		msp_set_audmode(client);
-		msp_wake_thread(client);
+		reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
+		val = msp_read_dem(client, reg);
+		if (tuner != ((val >> 8) & 1)) {
+			msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
+			/* wake thread when a new tuner input is chosen */
+			msp_wake_thread(client);
+		}
 		break;
 	}
 

drivers/media/video/msp3400-driver.h

@@ -85,6 +85,7 @@ struct msp_state {
 	int volume, muted;
 	int balance, loudness;
 	int bass, treble;
+	int scan_in_progress;
 
 	/* thread */
 	struct task_struct   *kthread;

drivers/media/video/msp3400-kthreads.c

@@ -383,7 +383,7 @@ static int msp3400c_detect_stereo(struct i2c_client *client)
 		if (val > 32767)
 			val -= 65536;
 		v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val);
-		if (val > 4096) {
+		if (val > 8192) {
 			rxsubchans = V4L2_TUNER_SUB_STEREO;
 		} else if (val < -4096) {
 			rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
@@ -480,20 +480,22 @@ 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");
+			state->scan_in_progress = 0;
 			msp_set_audio(client);
 			continue;
 		}
 
-		/* put into sane state (and mute) */
-		msp_reset(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;
 
@@ -608,28 +610,26 @@ int msp3400c_thread(void *data)
 		no_second:
 			state->second = msp3400c_carrier_detect_main[max1].cdo;
 			msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
-			state->rxsubchans = V4L2_TUNER_SUB_MONO;
 			break;
 		}
 		msp3400c_set_carrier(client, state->second, state->main);
 
-		/* unmute, restore misc registers */
-		msp_set_audio(client);
-
-		msp_write_dsp(client, 0x13, state->acb);
+		/* unmute */
+		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 */
-		count = 20;
+		count = 3;
 		while (state->watch_stereo) {
-			watch_stereo(client);
-			if (msp_sleep(state, count ? 200 : 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");
@@ -659,16 +659,14 @@ 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");
+			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. */
@@ -679,6 +677,10 @@ 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);
@@ -708,6 +710,7 @@ 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)) {
@@ -729,20 +732,17 @@ 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;
@@ -752,15 +752,12 @@ 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;
 		}
@@ -774,20 +771,19 @@ 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 */
-		count = 20;
+		count = 3;
 		while (state->watch_stereo) {
-			watch_stereo(client);
-			if (msp_sleep(state, count ? 200 : 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");
@@ -902,10 +898,6 @@ 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);
 

drivers/media/video/tuner-core.c

@@ -558,10 +558,10 @@ static inline int set_mode(struct i2c_client *client, struct tuner *t, int mode,
 
 static inline int check_v4l2(struct tuner *t)
 {
-	if (t->using_v4l2) {
-		tuner_dbg ("ignore v4l1 call\n");
-		return EINVAL;
-	}
+	/* bttv still uses both v4l1 and v4l2 calls to the tuner (v4l2 for
+	   TV, v4l1 for radio), until that is fixed this code is disabled.
+	   Otherwise the radio (v4l1) wouldn't tune after using the TV (v4l2)
+	   first. */
 	return 0;
 }
 

drivers/media/video/v4l2-common.c

@@ -317,6 +317,7 @@ static const char *v4l2_int_ioctls[] = {
 	[_IOC_NR(TUNER_SET_STANDBY)]           = "TUNER_SET_STANDBY",
 	[_IOC_NR(TDA9887_SET_CONFIG)]          = "TDA9887_SET_CONFIG",
 
+	[_IOC_NR(VIDIOC_INT_S_TUNER_MODE)]     = "VIDIOC_INT_S_TUNER_MODE",
 	[_IOC_NR(VIDIOC_INT_S_REGISTER)]       = "VIDIOC_INT_S_REGISTER",
 	[_IOC_NR(VIDIOC_INT_G_REGISTER)]       = "VIDIOC_INT_G_REGISTER",
 	[_IOC_NR(VIDIOC_INT_RESET)]            = "VIDIOC_INT_RESET",
@@ -325,7 +326,12 @@ static const char *v4l2_int_ioctls[] = {
 	[_IOC_NR(VIDIOC_INT_S_VBI_DATA)]       = "VIDIOC_INT_S_VBI_DATA",
 	[_IOC_NR(VIDIOC_INT_G_VBI_DATA)]       = "VIDIOC_INT_G_VBI_DATA",
 	[_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)]     = "VIDIOC_INT_G_CHIP_IDENT",
-	[_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ"
+	[_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ",
+	[_IOC_NR(VIDIOC_INT_S_STANDBY)]        = "VIDIOC_INT_S_STANDBY",
+	[_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)]  = "VIDIOC_INT_S_AUDIO_ROUTING",
+	[_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)]  = "VIDIOC_INT_G_AUDIO_ROUTING",
+	[_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)]  = "VIDIOC_INT_S_VIDEO_ROUTING",
+	[_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)]  = "VIDIOC_INT_G_VIDEO_ROUTING"
 };
 #define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)