6 files changed, 119 insertions, 136 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c
index 91c537bca8ad..b78cfb7d1897 100644
--- a/drivers/media/dvb/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb/dvb-core/dvb_demux.c
@@ -30,6 +30,7 @@
 #include <linux/string.h>
 #include <linux/crc32.h>
 #include <asm/uaccess.h>
+#include <asm/div64.h>
 
 #include "dvb_demux.h"
 
@@ -44,6 +45,11 @@ module_param(dvb_demux_tscheck, int, 0644);
 MODULE_PARM_DESC(dvb_demux_tscheck,
 		"enable transport stream continuity and TEI check");
 
+static int dvb_demux_speedcheck;
+module_param(dvb_demux_speedcheck, int, 0644);
+MODULE_PARM_DESC(dvb_demux_speedcheck,
+		"enable transport stream speed check");
+
 #define dprintk_tscheck(x...) do {                              \
 		if (dvb_demux_tscheck && printk_ratelimit())    \
 			printk(x);                              \
@@ -387,6 +393,39 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
 	u16 pid = ts_pid(buf);
 	int dvr_done = 0;
 
+	if (dvb_demux_speedcheck) {
+		struct timespec cur_time, delta_time;
+		u64 speed_bytes, speed_timedelta;
+
+		demux->speed_pkts_cnt++;
+
+		/* show speed every SPEED_PKTS_INTERVAL packets */
+		if (!(demux->speed_pkts_cnt % SPEED_PKTS_INTERVAL)) {
+			cur_time = current_kernel_time();
+
+			if (demux->speed_last_time.tv_sec != 0 &&
+					demux->speed_last_time.tv_nsec != 0) {
+				delta_time = timespec_sub(cur_time,
+						demux->speed_last_time);
+				speed_bytes = (u64)demux->speed_pkts_cnt
+					* 188 * 8;
+				/* convert to 1024 basis */
+				speed_bytes = 1000 * div64_u64(speed_bytes,
+						1024);
+				speed_timedelta =
+					(u64)timespec_to_ns(&delta_time);
+				speed_timedelta = div64_u64(speed_timedelta,
+						1000000); /* nsec -> usec */
+				printk(KERN_INFO "TS speed %llu Kbits/sec \n",
+						div64_u64(speed_bytes,
+							speed_timedelta));
+			};
+
+			demux->speed_last_time = cur_time;
+			demux->speed_pkts_cnt = 0;
+		};
+	};
+
 	if (dvb_demux_tscheck) {
 		if (!demux->cnt_storage)
 			demux->cnt_storage = vmalloc(MAX_PID + 1);
diff --git a/drivers/media/dvb/dvb-core/dvb_demux.h b/drivers/media/dvb/dvb-core/dvb_demux.h
index 2fe05d03240d..a7d876fd02dd 100644
--- a/drivers/media/dvb/dvb-core/dvb_demux.h
+++ b/drivers/media/dvb/dvb-core/dvb_demux.h
@@ -44,6 +44,8 @@
 
 #define MAX_PID 0x1fff
 
+#define SPEED_PKTS_INTERVAL 50000
+
 struct dvb_demux_filter {
 	struct dmx_section_filter filter;
 	u8 maskandmode[DMX_MAX_FILTER_SIZE];
@@ -131,6 +133,9 @@ struct dvb_demux {
 	spinlock_t lock;
 
 	uint8_t *cnt_storage; /* for TS continuity check */
+
+	struct timespec speed_last_time; /* for TS speed check */
+	uint32_t speed_pkts_cnt; /* for TS speed check */
 };
 
 int dvb_dmx_init(struct dvb_demux *dvbdemux);
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 98082416aa52..07461222a7f5 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -895,104 +895,27 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
 }
 
 static struct dtv_cmds_h dtv_cmds[] = {
-	[DTV_TUNE] = {
-		.name	= "DTV_TUNE",
-		.cmd	= DTV_TUNE,
-		.set	= 1,
-	},
-	[DTV_CLEAR] = {
-		.name	= "DTV_CLEAR",
-		.cmd	= DTV_CLEAR,
-		.set	= 1,
-	},
+	_DTV_CMD(DTV_TUNE, 1, 0),
+	_DTV_CMD(DTV_CLEAR, 1, 0),
 
 	/* Set */
-	[DTV_FREQUENCY] = {
-		.name	= "DTV_FREQUENCY",
-		.cmd	= DTV_FREQUENCY,
-		.set	= 1,
-	},
-	[DTV_BANDWIDTH_HZ] = {
-		.name	= "DTV_BANDWIDTH_HZ",
-		.cmd	= DTV_BANDWIDTH_HZ,
-		.set	= 1,
-	},
-	[DTV_MODULATION] = {
-		.name	= "DTV_MODULATION",
-		.cmd	= DTV_MODULATION,
-		.set	= 1,
-	},
-	[DTV_INVERSION] = {
-		.name	= "DTV_INVERSION",
-		.cmd	= DTV_INVERSION,
-		.set	= 1,
-	},
-	[DTV_DISEQC_MASTER] = {
-		.name	= "DTV_DISEQC_MASTER",
-		.cmd	= DTV_DISEQC_MASTER,
-		.set	= 1,
-		.buffer	= 1,
-	},
-	[DTV_SYMBOL_RATE] = {
-		.name	= "DTV_SYMBOL_RATE",
-		.cmd	= DTV_SYMBOL_RATE,
-		.set	= 1,
-	},
-	[DTV_INNER_FEC] = {
-		.name	= "DTV_INNER_FEC",
-		.cmd	= DTV_INNER_FEC,
-		.set	= 1,
-	},
-	[DTV_VOLTAGE] = {
-		.name	= "DTV_VOLTAGE",
-		.cmd	= DTV_VOLTAGE,
-		.set	= 1,
-	},
-	[DTV_TONE] = {
-		.name	= "DTV_TONE",
-		.cmd	= DTV_TONE,
-		.set	= 1,
-	},
-	[DTV_PILOT] = {
-		.name	= "DTV_PILOT",
-		.cmd	= DTV_PILOT,
-		.set	= 1,
-	},
-	[DTV_ROLLOFF] = {
-		.name	= "DTV_ROLLOFF",
-		.cmd	= DTV_ROLLOFF,
-		.set	= 1,
-	},
-	[DTV_DELIVERY_SYSTEM] = {
-		.name	= "DTV_DELIVERY_SYSTEM",
-		.cmd	= DTV_DELIVERY_SYSTEM,
-		.set	= 1,
-	},
-	[DTV_HIERARCHY] = {
-		.name	= "DTV_HIERARCHY",
-		.cmd	= DTV_HIERARCHY,
-		.set	= 1,
-	},
-	[DTV_CODE_RATE_HP] = {
-		.name	= "DTV_CODE_RATE_HP",
-		.cmd	= DTV_CODE_RATE_HP,
-		.set	= 1,
-	},
-	[DTV_CODE_RATE_LP] = {
-		.name	= "DTV_CODE_RATE_LP",
-		.cmd	= DTV_CODE_RATE_LP,
-		.set	= 1,
-	},
-	[DTV_GUARD_INTERVAL] = {
-		.name	= "DTV_GUARD_INTERVAL",
-		.cmd	= DTV_GUARD_INTERVAL,
-		.set	= 1,
-	},
-	[DTV_TRANSMISSION_MODE] = {
-		.name	= "DTV_TRANSMISSION_MODE",
-		.cmd	= DTV_TRANSMISSION_MODE,
-		.set	= 1,
-	},
+	_DTV_CMD(DTV_FREQUENCY, 1, 0),
+	_DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0),
+	_DTV_CMD(DTV_MODULATION, 1, 0),
+	_DTV_CMD(DTV_INVERSION, 1, 0),
+	_DTV_CMD(DTV_DISEQC_MASTER, 1, 1),
+	_DTV_CMD(DTV_SYMBOL_RATE, 1, 0),
+	_DTV_CMD(DTV_INNER_FEC, 1, 0),
+	_DTV_CMD(DTV_VOLTAGE, 1, 0),
+	_DTV_CMD(DTV_TONE, 1, 0),
+	_DTV_CMD(DTV_PILOT, 1, 0),
+	_DTV_CMD(DTV_ROLLOFF, 1, 0),
+	_DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0),
+	_DTV_CMD(DTV_HIERARCHY, 1, 0),
+	_DTV_CMD(DTV_CODE_RATE_HP, 1, 0),
+	_DTV_CMD(DTV_CODE_RATE_LP, 1, 0),
+	_DTV_CMD(DTV_GUARD_INTERVAL, 1, 0),
+	_DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0),
 
 	_DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0),
 	_DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0),
@@ -1035,43 +958,13 @@ static struct dtv_cmds_h dtv_cmds[] = {
 	_DTV_CMD(DTV_ISDBS_TS_ID, 1, 0),
 
 	/* Get */
-	[DTV_DISEQC_SLAVE_REPLY] = {
-		.name	= "DTV_DISEQC_SLAVE_REPLY",
-		.cmd	= DTV_DISEQC_SLAVE_REPLY,
-		.set	= 0,
-		.buffer	= 1,
-	},
-
-	[DTV_API_VERSION] = {
-		.name	= "DTV_API_VERSION",
-		.cmd	= DTV_API_VERSION,
-		.set	= 0,
-	},
-	[DTV_CODE_RATE_HP] = {
-		.name	= "DTV_CODE_RATE_HP",
-		.cmd	= DTV_CODE_RATE_HP,
-		.set	= 0,
-	},
-	[DTV_CODE_RATE_LP] = {
-		.name	= "DTV_CODE_RATE_LP",
-		.cmd	= DTV_CODE_RATE_LP,
-		.set	= 0,
-	},
-	[DTV_GUARD_INTERVAL] = {
-		.name	= "DTV_GUARD_INTERVAL",
-		.cmd	= DTV_GUARD_INTERVAL,
-		.set	= 0,
-	},
-	[DTV_TRANSMISSION_MODE] = {
-		.name	= "DTV_TRANSMISSION_MODE",
-		.cmd	= DTV_TRANSMISSION_MODE,
-		.set	= 0,
-	},
-	[DTV_HIERARCHY] = {
-		.name	= "DTV_HIERARCHY",
-		.cmd	= DTV_HIERARCHY,
-		.set	= 0,
-	},
+	_DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1),
+	_DTV_CMD(DTV_API_VERSION, 0, 0),
+	_DTV_CMD(DTV_CODE_RATE_HP, 0, 0),
+	_DTV_CMD(DTV_CODE_RATE_LP, 0, 0),
+	_DTV_CMD(DTV_GUARD_INTERVAL, 0, 0),
+	_DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0),
+	_DTV_CMD(DTV_HIERARCHY, 0, 0),
 };
 
 static void dtv_property_dump(struct dtv_property *tvp)
@@ -1712,7 +1605,18 @@ static int dvb_frontend_ioctl_legacy(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;
-	int err = -EOPNOTSUPP;
+	int cb_err, err = -EOPNOTSUPP;
+
+	if (fe->dvb->fe_ioctl_override) {
+		cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg,
+						    DVB_FE_IOCTL_PRE);
+		if (cb_err < 0)
+			return cb_err;
+		if (cb_err > 0)
+			return 0;
+		/* fe_ioctl_override returning 0 allows
+		 * dvb-core to continue handling the ioctl */
+	}
 
 	switch (cmd) {
 	case FE_GET_INFO: {
@@ -1978,6 +1882,13 @@ static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
 		break;
 	};
 
+	if (fe->dvb->fe_ioctl_override) {
+		cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg,
+						    DVB_FE_IOCTL_POST);
+		if (cb_err < 0)
+			return cb_err;
+	}
+
 	return err;
 }
 
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h
index 810f07d63246..52e4ce4304ee 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.h
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.h
@@ -160,7 +160,7 @@ struct tuner_state {
  * search callback possible return status
  *
  * DVBFE_ALGO_SEARCH_SUCCESS
- * The frontend search algorithm completed and returned succesfully
+ * The frontend search algorithm completed and returned successfully
  *
  * DVBFE_ALGO_SEARCH_ASLEEP
  * The frontend search algorithm is sleeping
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 0241a7c5c34a..8b8558fcb042 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -1396,7 +1396,7 @@ static int dvb_net_do_ioctl(struct inode *inode, struct file *file,
 		return ret;
 	}
 
-	/* binary compatiblity cruft */
+	/* binary compatibility cruft */
 	case __NET_ADD_IF_OLD:
 	{
 		struct __dvb_net_if_old *dvbnetif = parg;
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index 01fc70484743..f7b499d4a3c0 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -54,6 +54,8 @@
 	module_param_array(adapter_nr, short, NULL, 0444); \
 	MODULE_PARM_DESC(adapter_nr, "DVB adapter numbers")
 
+struct dvb_frontend;
+
 struct dvb_adapter {
 	int num;
 	struct list_head list_head;
@@ -69,6 +71,32 @@ struct dvb_adapter {
 	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 */
+
+	/* Allow the adapter/bridge driver to perform an action before and/or
+	 * after the core handles an ioctl:
+	 *
+	 * DVB_FE_IOCTL_PRE indicates that the ioctl has not yet been handled.
+	 * DVB_FE_IOCTL_POST indicates that the ioctl has been handled.
+	 *
+	 * When DVB_FE_IOCTL_PRE is passed to the callback as the stage arg:
+	 *
+	 * return 0 to allow dvb-core to handle the ioctl.
+	 * return a positive int to prevent dvb-core from handling the ioctl,
+	 * 	and exit without error.
+	 * return a negative int to prevent dvb-core from handling the ioctl,
+	 * 	and return that value as an error.
+	 *
+	 * When DVB_FE_IOCTL_POST is passed to the callback as the stage arg:
+	 *
+	 * return 0 to allow the dvb_frontend ioctl handler to exit normally.
+	 * return a negative int to cause the dvb_frontend ioctl handler to
+	 * 	return that value as an error.
+	 */
+#define DVB_FE_IOCTL_PRE 0
+#define DVB_FE_IOCTL_POST 1
+	int (*fe_ioctl_override)(struct dvb_frontend *fe,
+				 unsigned int cmd, void *parg,
+				 unsigned int stage);
 };