Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (95 commits)
  V4L/DVB (9296): Patch to remove warning message during cx88-dvb compilation
  V4L/DVB (9294): gspca: Add a stop sequence in t613.
  V4L/DVB (9293): gspca: Separate and fix the sensor dependant sequences in t613.
  V4L/DVB (9292): gspca: Call the control setting functions at init time in t613.
  V4L/DVB (9291): gspca: Do not set the white balance temperature by default in t613.
  V4L/DVB (9290): gspca: Adjust the sensor init sequences in t613.
  V4L/DVB (9289): gspca: Other sensor identified as om6802 in t613.
  V4L/DVB (9288): gspca: Write to the USB device and not USB interface in t613.
  V4L/DVB (9287): gspca: Change the name of the multi bytes write function in t613.
  V4L/DVB (9286): gspca: Compilation problem of gspca.c and the kernel version.
  V4L/DVB (9283): Correct typo and enable setting the gain on the mt9m111 sensor
  V4L/DVB (9282): Properly iterate the urbs when destroying them.
  V4L/DVB (9281): gspca: Add hflip and vflip to the po1030 sensor
  V4L/DVB (9280): gspca: Use the gspca debug macros
  V4L/DVB (9279): gspca: Correct some copyright headers
  V4L/DVB (9278): gspca: Remove the m5602_debug variable
  V4L/DVB (9277): gspca: propagate an error in m5602_start_transfer()
  V4L/DVB (9276): videobuf-dvb: two functions are now static
  V4L/DVB (9275): dvb: input data pointer of cx24116_writeregN() should be const
  V4L/DVB (9274): Remove spurious messages and turn into debug.
  ...

4 files changed, 93 insertions, 49 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index f170e822fad..5689d1f1d44 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -47,6 +47,7 @@ static int dvb_shutdown_timeout;
 static int dvb_force_auto_inversion;
 static int dvb_override_tune_delay;
 static int dvb_powerdown_on_sleep = 1;
+static int dvb_mfe_wait_time = 5;
 
 module_param_named(frontend_debug, dvb_frontend_debug, int, 0644);
 MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off).");
@@ -58,6 +59,8 @@ module_param(dvb_override_tune_delay, int, 0644);
 MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt");
 module_param(dvb_powerdown_on_sleep, int, 0644);
 MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)");
+module_param(dvb_mfe_wait_time, int, 0644);
+MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)");
 
 #define dprintk if (dvb_frontend_debug) printk
 
@@ -212,8 +215,9 @@ static int dvb_frontend_get_event(struct dvb_frontend *fe,
 
 static void dvb_frontend_init(struct dvb_frontend *fe)
 {
-	dprintk ("DVB: initialising frontend %i (%s)...\n",
+	dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n",
 		 fe->dvb->num,
+		 fe->id,
 		 fe->ops.info.name);
 
 	if (fe->ops.init)
@@ -686,7 +690,7 @@ static int dvb_frontend_start(struct dvb_frontend *fe)
 	mb();
 
 	fe_thread = kthread_run(dvb_frontend_thread, fe,
-		"kdvb-fe-%i", fe->dvb->num);
+		"kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id);
 	if (IS_ERR(fe_thread)) {
 		ret = PTR_ERR(fe_thread);
 		printk("dvb_frontend_start: failed to start kthread (%d)\n", ret);
@@ -710,8 +714,8 @@ static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe,
 		*freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max);
 
 	if (*freq_min == 0 || *freq_max == 0)
-		printk(KERN_WARNING "DVB: frontend %u frequency limits undefined - fix the driver\n",
-		       fe->dvb->num);
+		printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n",
+		       fe->dvb->num,fe->id);
 }
 
 static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
@@ -724,8 +728,8 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
 	dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max);
 	if ((freq_min && parms->frequency < freq_min) ||
 	    (freq_max && parms->frequency > freq_max)) {
-		printk(KERN_WARNING "DVB: frontend %u frequency %u out of range (%u..%u)\n",
-		       fe->dvb->num, parms->frequency, freq_min, freq_max);
+		printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n",
+		       fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max);
 		return -EINVAL;
 	}
 
@@ -735,8 +739,8 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
 		     parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) ||
 		    (fe->ops.info.symbol_rate_max &&
 		     parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) {
-			printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n",
-			       fe->dvb->num, parms->u.qpsk.symbol_rate,
+			printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n",
+			       fe->dvb->num, fe->id, parms->u.qpsk.symbol_rate,
 			       fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max);
 			return -EINVAL;
 		}
@@ -746,8 +750,8 @@ static int dvb_frontend_check_parameters(struct dvb_frontend *fe,
 		     parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) ||
 		    (fe->ops.info.symbol_rate_max &&
 		     parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) {
-			printk(KERN_WARNING "DVB: frontend %u symbol rate %u out of range (%u..%u)\n",
-			       fe->dvb->num, parms->u.qam.symbol_rate,
+			printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n",
+			       fe->dvb->num, fe->id, parms->u.qam.symbol_rate,
 			       fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max);
 			return -EINVAL;
 		}
@@ -899,30 +903,30 @@ void dtv_property_dump(struct dtv_property *tvp)
 	int i;
 
 	if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) {
-		printk("%s: tvp.cmd = 0x%08x (undefined/unknown/invalid)\n",
+		printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n",
 			__func__, tvp->cmd);
 		return;
 	}
 
-	printk("%s() tvp.cmd    = 0x%08x (%s)\n"
-		,__FUNCTION__
+	dprintk("%s() tvp.cmd    = 0x%08x (%s)\n"
+		,__func__
 		,tvp->cmd
 		,dtv_cmds[ tvp->cmd ].name);
 
 	if(dtv_cmds[ tvp->cmd ].buffer) {
 
-		printk("%s() tvp.u.buffer.len = 0x%02x\n"
-			,__FUNCTION__
+		dprintk("%s() tvp.u.buffer.len = 0x%02x\n"
+			,__func__
 			,tvp->u.buffer.len);
 
 		for(i = 0; i < tvp->u.buffer.len; i++)
-			printk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n"
-				,__FUNCTION__
+			dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n"
+				,__func__
 				,i
 				,tvp->u.buffer.data[i]);
 
 	} else
-		printk("%s() tvp.u.data = 0x%08x\n", __FUNCTION__, tvp->u.data);
+		dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data);
 }
 
 int is_legacy_delivery_system(fe_delivery_system_t s)
@@ -942,8 +946,6 @@ void dtv_property_cache_sync(struct dvb_frontend *fe, struct dvb_frontend_parame
 {
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 
-	printk("%s()\n", __FUNCTION__);
-
 	c->frequency = p->frequency;
 	c->inversion = p->inversion;
 
@@ -998,27 +1000,25 @@ void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	struct dvb_frontend_parameters *p = &fepriv->parameters;
 
-	printk("%s()\n", __FUNCTION__);
-
 	p->frequency = c->frequency;
 	p->inversion = c->inversion;
 
 	switch (fe->ops.info.type) {
 	case FE_QPSK:
-		printk("%s() Preparing QPSK req\n", __FUNCTION__);
+		dprintk("%s() Preparing QPSK req\n", __func__);
 		p->u.qpsk.symbol_rate = c->symbol_rate;
 		p->u.qpsk.fec_inner = c->fec_inner;
 		c->delivery_system = SYS_DVBS;
 		break;
 	case FE_QAM:
-		printk("%s() Preparing QAM req\n", __FUNCTION__);
+		dprintk("%s() Preparing QAM req\n", __func__);
 		p->u.qam.symbol_rate = c->symbol_rate;
 		p->u.qam.fec_inner = c->fec_inner;
 		p->u.qam.modulation = c->modulation;
 		c->delivery_system = SYS_DVBC_ANNEX_AC;
 		break;
 	case FE_OFDM:
-		printk("%s() Preparing OFDM req\n", __FUNCTION__);
+		dprintk("%s() Preparing OFDM req\n", __func__);
 		if (c->bandwidth_hz == 6000000)
 			p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
 		else if (c->bandwidth_hz == 7000000)
@@ -1036,7 +1036,7 @@ void dtv_property_legacy_params_sync(struct dvb_frontend *fe)
 		c->delivery_system = SYS_DVBT;
 		break;
 	case FE_ATSC:
-		printk("%s() Preparing VSB req\n", __FUNCTION__);
+		dprintk("%s() Preparing VSB req\n", __func__);
 		p->u.vsb.modulation = c->modulation;
 		if ((c->modulation == VSB_8) || (c->modulation == VSB_16))
 			c->delivery_system = SYS_ATSC;
@@ -1055,14 +1055,13 @@ void dtv_property_adv_params_sync(struct dvb_frontend *fe)
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 	struct dvb_frontend_parameters *p = &fepriv->parameters;
 
-	printk("%s()\n", __FUNCTION__);
-
 	p->frequency = c->frequency;
 	p->inversion = c->inversion;
 
 	switch(c->modulation) {
 	case PSK_8:
 	case APSK_16:
+	case APSK_32:
 	case QPSK:
 		p->u.qpsk.symbol_rate = c->symbol_rate;
 		p->u.qpsk.fec_inner = c->fec_inner;
@@ -1089,19 +1088,17 @@ void dtv_property_cache_submit(struct dvb_frontend *fe)
 {
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 
-	printk("%s()\n", __FUNCTION__);
-
 	/* For legacy delivery systems we don't need the delivery_system to
 	 * be specified, but we populate the older structures from the cache
 	 * so we can call set_frontend on older drivers.
 	 */
 	if(is_legacy_delivery_system(c->delivery_system)) {
 
-		printk("%s() legacy, modulation = %d\n", __FUNCTION__, c->modulation);
+		dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation);
 		dtv_property_legacy_params_sync(fe);
 
 	} else {
-		printk("%s() adv, modulation = %d\n", __FUNCTION__, c->modulation);
+		dprintk("%s() adv, modulation = %d\n", __func__, c->modulation);
 
 		/* For advanced delivery systems / modulation types ...
 		 * we seed the lecacy dvb_frontend_parameters structure
@@ -1123,8 +1120,6 @@ int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp,
 {
 	int r = 0;
 
-	printk("%s()\n", __FUNCTION__);
-
 	dtv_property_dump(tvp);
 
 	/* Allow the frontend to validate incoming properties */
@@ -1198,7 +1193,6 @@ int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
 {
 	int r = 0;
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
-	printk("%s()\n", __FUNCTION__);
 	dtv_property_dump(tvp);
 
 	/* Allow the frontend to validate incoming properties */
@@ -1213,7 +1207,7 @@ int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
 		/* Reset a cache of data specific to the frontend here. This does
 		 * not effect hardware.
 		 */
-		printk("%s() Flushing property cache\n", __FUNCTION__);
+		dprintk("%s() Flushing property cache\n", __func__);
 		memset(&fe->dtv_property_cache, 0, sizeof(struct dtv_frontend_properties));
 		fe->dtv_property_cache.state = tvp->cmd;
 		fe->dtv_property_cache.delivery_system = SYS_UNDEFINED;
@@ -1224,7 +1218,7 @@ int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp,
 		 * ioctl.
 		 */
 		fe->dtv_property_cache.state = tvp->cmd;
-		printk("%s() Finalised property cache\n", __FUNCTION__);
+		dprintk("%s() Finalised property cache\n", __func__);
 		dtv_property_cache_submit(fe);
 
 		r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND,
@@ -1335,12 +1329,10 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
 	dprintk("%s\n", __func__);
 
 	if(cmd == FE_SET_PROPERTY) {
-		printk("%s() FE_SET_PROPERTY\n", __FUNCTION__);
-
 		tvps = (struct dtv_properties __user *)parg;
 
-		printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num);
-		printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props);
+		dprintk("%s() properties.num = %d\n", __func__, tvps->num);
+		dprintk("%s() properties.props = %p\n", __func__, tvps->props);
 
 		/* Put an arbitrary limit on the number of messages that can
 		 * be sent at once */
@@ -1364,18 +1356,16 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
 			err |= (tvp + i)->result;
 		}
 
-		if(fe->dtv_property_cache.state == DTV_TUNE) {
-			printk("%s() Property cache is full, tuning\n", __FUNCTION__);
-		}
+		if(fe->dtv_property_cache.state == DTV_TUNE)
+			dprintk("%s() Property cache is full, tuning\n", __func__);
 
 	} else
 	if(cmd == FE_GET_PROPERTY) {
-		printk("%s() FE_GET_PROPERTY\n", __FUNCTION__);
 
 		tvps = (struct dtv_properties __user *)parg;
 
-		printk("%s() properties.num = %d\n", __FUNCTION__, tvps->num);
-		printk("%s() properties.props = %p\n", __FUNCTION__, tvps->props);
+		dprintk("%s() properties.num = %d\n", __func__, tvps->num);
+		dprintk("%s() properties.props = %p\n", __func__, tvps->props);
 
 		/* Put an arbitrary limit on the number of messages that can
 		 * be sent at once */
@@ -1704,13 +1694,53 @@ static int dvb_frontend_open(struct inode *inode, struct file *file)
 	struct dvb_device *dvbdev = file->private_data;
 	struct dvb_frontend *fe = dvbdev->priv;
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
+	struct dvb_adapter *adapter = fe->dvb;
 	int ret;
 
 	dprintk ("%s\n", __func__);
 
+	if (adapter->mfe_shared) {
+		mutex_lock (&adapter->mfe_lock);
+
+		if (adapter->mfe_dvbdev == NULL)
+			adapter->mfe_dvbdev = dvbdev;
+
+		else if (adapter->mfe_dvbdev != dvbdev) {
+			struct dvb_device
+				*mfedev = adapter->mfe_dvbdev;
+			struct dvb_frontend
+				*mfe = mfedev->priv;
+			struct dvb_frontend_private
+				*mfepriv = mfe->frontend_priv;
+			int mferetry = (dvb_mfe_wait_time << 1);
+
+			mutex_unlock (&adapter->mfe_lock);
+			while (mferetry-- && (mfedev->users != -1 ||
+					mfepriv->thread != NULL)) {
+				if(msleep_interruptible(500)) {
+					if(signal_pending(current))
+						return -EINTR;
+				}
+			}
+
+			mutex_lock (&adapter->mfe_lock);
+			if(adapter->mfe_dvbdev != dvbdev) {
+				mfedev = adapter->mfe_dvbdev;
+				mfe = mfedev->priv;
+				mfepriv = mfe->frontend_priv;
+				if (mfedev->users != -1 ||
+						mfepriv->thread != NULL) {
+					mutex_unlock (&adapter->mfe_lock);
+					return -EBUSY;
+				}
+				adapter->mfe_dvbdev = dvbdev;
+			}
+		}
+	}
+
 	if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) {
 		if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0)
-			return ret;
+			goto err0;
 	}
 
 	if ((ret = dvb_generic_open (inode, file)) < 0)
@@ -1730,6 +1760,8 @@ static int dvb_frontend_open(struct inode *inode, struct file *file)
 		fepriv->events.eventr = fepriv->events.eventw = 0;
 	}
 
+	if (adapter->mfe_shared)
+		mutex_unlock (&adapter->mfe_lock);
 	return ret;
 
 err2:
@@ -1737,6 +1769,9 @@ err2:
 err1:
 	if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl)
 		fe->ops.ts_bus_ctrl(fe, 0);
+err0:
+	if (adapter->mfe_shared)
+		mutex_unlock (&adapter->mfe_lock);
 	return ret;
 }
 
@@ -1806,8 +1841,9 @@ int dvb_register_frontend(struct dvb_adapter* dvb,
 	fe->dvb = dvb;
 	fepriv->inversion = INVERSION_OFF;
 
-	printk ("DVB: registering frontend %i (%s)...\n",
+	printk ("DVB: registering adapter %i frontend %i (%s)...\n",
 		fe->dvb->num,
+		fe->id,
 		fe->ops.info.name);
 
 	dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template,
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index 3055301ff3c..db4a63b0a32 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -222,6 +222,7 @@ struct dvb_frontend {
 	struct dtv_frontend_properties dtv_property_cache;
 #define DVB_FRONTEND_COMPONENT_TUNER 0
 	int (*callback)(void *adapter_priv, int component, int cmd, int arg);
+	int id;
 };
 
 extern int dvb_register_frontend(struct dvb_adapter *dvb,
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 665776d72a4..a113744a56c 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -326,6 +326,9 @@ int dvb_register_adapter(struct dvb_adapter *adap, const char *name,
 	adap->name = name;
 	adap->module = module;
 	adap->device = device;
+	adap->mfe_shared = 0;
+	adap->mfe_dvbdev = NULL;
+	mutex_init (&adap->mfe_lock);
 
 	list_add_tail (&adap->list_head, &dvb_adapter_list);
 
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index 89d12dc477a..574e336bac3 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -62,6 +62,10 @@ struct dvb_adapter {
 	struct device *device;
 
 	struct module *module;
+
+	int mfe_shared;			/* indicates mutually exclusive frontends */
+	struct dvb_device *mfe_dvbdev;	/* frontend device in use */
+	struct mutex mfe_lock;		/* access lock for thread creation */
 };