7 files changed, 132 insertions, 33 deletions

diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h
index 388c2eb..399e104 100644
--- a/drivers/media/dvb-core/dvb-usb-ids.h
+++ b/drivers/media/dvb-core/dvb-usb-ids.h
@@ -172,6 +172,7 @@
 #define USB_PID_TWINHAN_VP7045_WARM			0x3206
 #define USB_PID_TWINHAN_VP7021_COLD			0x3207
 #define USB_PID_TWINHAN_VP7021_WARM			0x3208
+#define USB_PID_TWINHAN_VP7049				0x3219
 #define USB_PID_TINYTWIN				0x3226
 #define USB_PID_TINYTWIN_2				0xe402
 #define USB_PID_TINYTWIN_3				0x9016
@@ -233,10 +234,15 @@
 #define USB_PID_AVERMEDIA_A815M				0x815a
 #define USB_PID_AVERMEDIA_A835				0xa835
 #define USB_PID_AVERMEDIA_B835				0xb835
+#define USB_PID_AVERMEDIA_A835B_1835			0x1835
+#define USB_PID_AVERMEDIA_A835B_2835			0x2835
+#define USB_PID_AVERMEDIA_A835B_3835			0x3835
+#define USB_PID_AVERMEDIA_A835B_4835			0x4835
 #define USB_PID_AVERMEDIA_1867				0x1867
 #define USB_PID_AVERMEDIA_A867				0xa867
 #define USB_PID_AVERMEDIA_TWINSTAR			0x0825
 #define USB_PID_TECHNOTREND_CONNECT_S2400               0x3006
+#define USB_PID_TECHNOTREND_CONNECT_S2400_8KEEPROM	0x3009
 #define USB_PID_TECHNOTREND_CONNECT_CT3650		0x300d
 #define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY	0x005a
 #define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY_2	0x0081
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index 9be65a3..0aac309 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -156,6 +156,9 @@ struct dvb_ca_private {
 
 	/* Slot to start looking for data to read from in the next user-space read operation */
 	int next_read_slot;
+
+	/* mutex serializing ioctls */
+	struct mutex ioctl_mutex;
 };
 
 static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private *ca);
@@ -1191,6 +1194,9 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
 
 	dprintk("%s\n", __func__);
 
+	if (mutex_lock_interruptible(&ca->ioctl_mutex))
+		return -ERESTARTSYS;
+
 	switch (cmd) {
 	case CA_RESET:
 		for (slot = 0; slot < ca->slot_count; slot++) {
@@ -1221,8 +1227,10 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
 	case CA_GET_SLOT_INFO: {
 		struct ca_slot_info *info = parg;
 
-		if ((info->num > ca->slot_count) || (info->num < 0))
-			return -EINVAL;
+		if ((info->num > ca->slot_count) || (info->num < 0)) {
+			err = -EINVAL;
+			goto out_unlock;
+		}
 
 		info->type = CA_CI_LINK;
 		info->flags = 0;
@@ -1241,6 +1249,8 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
 		break;
 	}
 
+out_unlock:
+	mutex_unlock(&ca->ioctl_mutex);
 	return err;
 }
 
@@ -1695,6 +1705,8 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
 		mutex_init(&ca->slot_info[i].slot_lock);
 	}
 
+	mutex_init(&ca->ioctl_mutex);
+
 	if (signal_pending(current)) {
 		ret = -EINTR;
 		goto error;
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 0223ad2..6e50a75 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -603,6 +603,7 @@ static int dvb_frontend_thread(void *data)
 	enum dvbfe_algo algo;
 
 	bool re_tune = false;
+	bool semheld = false;
 
 	dev_dbg(fe->dvb->device, "%s:\n", __func__);
 
@@ -626,6 +627,8 @@ restart:
 
 		if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) {
 			/* got signal or quitting */
+			if (!down_interruptible(&fepriv->sem))
+				semheld = true;
 			fepriv->exit = DVB_FE_NORMAL_EXIT;
 			break;
 		}
@@ -741,6 +744,8 @@ restart:
 		fepriv->exit = DVB_FE_NO_EXIT;
 	mb();
 
+	if (semheld)
+		up(&fepriv->sem);
 	dvb_frontend_wakeup(fe);
 	return 0;
 }
@@ -1048,6 +1053,16 @@ static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = {
 	_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0),
 	_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0),
 	_DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0),
+
+	/* Statistics API */
+	_DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0),
+	_DTV_CMD(DTV_STAT_CNR, 0, 0),
+	_DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0),
+	_DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0),
+	_DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0),
+	_DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0),
+	_DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0),
+	_DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0),
 };
 
 static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp)
@@ -1438,7 +1453,35 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
 		tvp->u.data = c->lna;
 		break;
 
+	/* Fill quality measures */
+	case DTV_STAT_SIGNAL_STRENGTH:
+		tvp->u.st = c->strength;
+		break;
+	case DTV_STAT_CNR:
+		tvp->u.st = c->cnr;
+		break;
+	case DTV_STAT_PRE_ERROR_BIT_COUNT:
+		tvp->u.st = c->pre_bit_error;
+		break;
+	case DTV_STAT_PRE_TOTAL_BIT_COUNT:
+		tvp->u.st = c->pre_bit_count;
+		break;
+	case DTV_STAT_POST_ERROR_BIT_COUNT:
+		tvp->u.st = c->post_bit_error;
+		break;
+	case DTV_STAT_POST_TOTAL_BIT_COUNT:
+		tvp->u.st = c->post_bit_count;
+		break;
+	case DTV_STAT_ERROR_BLOCK_COUNT:
+		tvp->u.st = c->block_error;
+		break;
+	case DTV_STAT_TOTAL_BLOCK_COUNT:
+		tvp->u.st = c->block_count;
+		break;
 	default:
+		dev_dbg(fe->dvb->device,
+			"%s: FE property %d doesn't exist\n",
+			__func__, tvp->cmd);
 		return -EINVAL;
 	}
 
@@ -1823,16 +1866,20 @@ static int dvb_frontend_ioctl(struct file *file,
 	int err = -EOPNOTSUPP;
 
 	dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd));
-	if (fepriv->exit != DVB_FE_NO_EXIT)
+	if (down_interruptible(&fepriv->sem))
+		return -ERESTARTSYS;
+
+	if (fepriv->exit != DVB_FE_NO_EXIT) {
+		up(&fepriv->sem);
 		return -ENODEV;
+	}
 
 	if ((file->f_flags & O_ACCMODE) == O_RDONLY &&
 	    (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT ||
-	     cmd == FE_DISEQC_RECV_SLAVE_REPLY))
+	     cmd == FE_DISEQC_RECV_SLAVE_REPLY)) {
+		up(&fepriv->sem);
 		return -EPERM;
-
-	if (down_interruptible (&fepriv->sem))
-		return -ERESTARTSYS;
+	}
 
 	if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY))
 		err = dvb_frontend_ioctl_properties(file, cmd, parg);
@@ -2246,7 +2293,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
 				printk("%s switch command: 0x%04lx\n", __func__, swcmd);
 			do_gettimeofday(&nexttime);
 			if (dvb_frontend_debug)
-				memcpy(&tv[0], &nexttime, sizeof(struct timeval));
+				tv[0] = nexttime;
 			/* before sending a command, initialize by sending
 			 * a 32ms 18V to the switch
 			 */
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h
index 97112cd..b34922a 100644
--- a/drivers/media/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb-core/dvb_frontend.h
@@ -393,6 +393,16 @@ struct dtv_frontend_properties {
 	u8			atscmh_sccc_code_mode_d;
 
 	u32			lna;
+
+	/* statistics data */
+	struct dtv_fe_stats	strength;
+	struct dtv_fe_stats	cnr;
+	struct dtv_fe_stats	pre_bit_error;
+	struct dtv_fe_stats	pre_bit_count;
+	struct dtv_fe_stats	post_bit_error;
+	struct dtv_fe_stats	post_bit_count;
+	struct dtv_fe_stats	block_error;
+	struct dtv_fe_stats	block_count;
 };
 
 struct dvb_frontend {
diff --git a/drivers/media/dvb-core/dvb_net.c b/drivers/media/dvb-core/dvb_net.c
index c211768..44225b1 100644
--- a/drivers/media/dvb-core/dvb_net.c
+++ b/drivers/media/dvb-core/dvb_net.c
@@ -1345,26 +1345,35 @@ static int dvb_net_do_ioctl(struct file *file,
 {
 	struct dvb_device *dvbdev = file->private_data;
 	struct dvb_net *dvbnet = dvbdev->priv;
+	int ret = 0;
 
 	if (((file->f_flags&O_ACCMODE)==O_RDONLY))
 		return -EPERM;
 
+	if (mutex_lock_interruptible(&dvbnet->ioctl_mutex))
+		return -ERESTARTSYS;
+
 	switch (cmd) {
 	case NET_ADD_IF:
 	{
 		struct dvb_net_if *dvbnetif = parg;
 		int result;
 
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
+		if (!capable(CAP_SYS_ADMIN)) {
+			ret = -EPERM;
+			goto ioctl_error;
+		}
 
-		if (!try_module_get(dvbdev->adapter->module))
-			return -EPERM;
+		if (!try_module_get(dvbdev->adapter->module)) {
+			ret = -EPERM;
+			goto ioctl_error;
+		}
 
 		result=dvb_net_add_if(dvbnet, dvbnetif->pid, dvbnetif->feedtype);
 		if (result<0) {
 			module_put(dvbdev->adapter->module);
-			return result;
+			ret = result;
+			goto ioctl_error;
 		}
 		dvbnetif->if_num=result;
 		break;
@@ -1376,8 +1385,10 @@ static int dvb_net_do_ioctl(struct file *file,
 		struct dvb_net_if *dvbnetif = parg;
 
 		if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
-		    !dvbnet->state[dvbnetif->if_num])
-			return -EINVAL;
+		    !dvbnet->state[dvbnetif->if_num]) {
+			ret = -EINVAL;
+			goto ioctl_error;
+		}
 
 		netdev = dvbnet->device[dvbnetif->if_num];
 
@@ -1388,16 +1399,18 @@ static int dvb_net_do_ioctl(struct file *file,
 	}
 	case NET_REMOVE_IF:
 	{
-		int ret;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		if ((unsigned long) parg >= DVB_NET_DEVICES_MAX)
-			return -EINVAL;
+		if (!capable(CAP_SYS_ADMIN)) {
+			ret = -EPERM;
+			goto ioctl_error;
+		}
+		if ((unsigned long) parg >= DVB_NET_DEVICES_MAX) {
+			ret = -EINVAL;
+			goto ioctl_error;
+		}
 		ret = dvb_net_remove_if(dvbnet, (unsigned long) parg);
 		if (!ret)
 			module_put(dvbdev->adapter->module);
-		return ret;
+		break;
 	}
 
 	/* binary compatibility cruft */
@@ -1406,16 +1419,21 @@ static int dvb_net_do_ioctl(struct file *file,
 		struct __dvb_net_if_old *dvbnetif = parg;
 		int result;
 
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
+		if (!capable(CAP_SYS_ADMIN)) {
+			ret = -EPERM;
+			goto ioctl_error;
+		}
 
-		if (!try_module_get(dvbdev->adapter->module))
-			return -EPERM;
+		if (!try_module_get(dvbdev->adapter->module)) {
+			ret = -EPERM;
+			goto ioctl_error;
+		}
 
 		result=dvb_net_add_if(dvbnet, dvbnetif->pid, DVB_NET_FEEDTYPE_MPE);
 		if (result<0) {
 			module_put(dvbdev->adapter->module);
-			return result;
+			ret = result;
+			goto ioctl_error;
 		}
 		dvbnetif->if_num=result;
 		break;
@@ -1427,8 +1445,10 @@ static int dvb_net_do_ioctl(struct file *file,
 		struct __dvb_net_if_old *dvbnetif = parg;
 
 		if (dvbnetif->if_num >= DVB_NET_DEVICES_MAX ||
-		    !dvbnet->state[dvbnetif->if_num])
-			return -EINVAL;
+		    !dvbnet->state[dvbnetif->if_num]) {
+			ret = -EINVAL;
+			goto ioctl_error;
+		}
 
 		netdev = dvbnet->device[dvbnetif->if_num];
 
@@ -1437,9 +1457,13 @@ static int dvb_net_do_ioctl(struct file *file,
 		break;
 	}
 	default:
-		return -ENOTTY;
+		ret = -ENOTTY;
+		break;
 	}
-	return 0;
+
+ioctl_error:
+	mutex_unlock(&dvbnet->ioctl_mutex);
+	return ret;
 }
 
 static long dvb_net_ioctl(struct file *file,
@@ -1505,6 +1529,7 @@ int dvb_net_init (struct dvb_adapter *adap, struct dvb_net *dvbnet,
 {
 	int i;
 
+	mutex_init(&dvbnet->ioctl_mutex);
 	dvbnet->demux = dmx;
 
 	for (i=0; i<DVB_NET_DEVICES_MAX; i++)
diff --git a/drivers/media/dvb-core/dvb_net.h b/drivers/media/dvb-core/dvb_net.h
index 1e53acd..ede78e8 100644
--- a/drivers/media/dvb-core/dvb_net.h
+++ b/drivers/media/dvb-core/dvb_net.h
@@ -40,6 +40,7 @@ struct dvb_net {
 	int state[DVB_NET_DEVICES_MAX];
 	unsigned int exit:1;
 	struct dmx_demux *demux;
+	struct mutex ioctl_mutex;
 };
 
 void dvb_net_release(struct dvb_net *);
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index d33101a..401ef64 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -418,10 +418,8 @@ int dvb_usercopy(struct file *file,
 	}
 
 	/* call driver */
-	mutex_lock(&dvbdev_mutex);
 	if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD)
 		err = -ENOTTY;
-	mutex_unlock(&dvbdev_mutex);
 
 	if (err < 0)
 		goto out;