Commit 3f6b87cf authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] siano: allow showing the complete statistics via debugfs 



Outputs the result of the statistics responses via debugfs.
That can help to track bugs at the stats filling.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c02272f9

drivers/media/common/siano/smsdvb.c

+355 −109
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. 
#include <linux/module.h>

#include <linux/slab.h>

#include <linux/init.h>

#include <linux/debugfs.h>



#include "dmxdev.h"

#include "dvbdev.h"
@@ -55,6 +56,13 @@ struct smsdvb_client_t { 


	int event_fe_state;

	int event_unc_state;



	/* Stats debugfs data */

	struct dentry		*debugfs;

	char			*stats_data;

	atomic_t		stats_count;

	bool			stats_was_read;

	wait_queue_head_t	stats_queue;

};



static struct list_head g_smsdvb_clients;
@@ -140,134 +148,358 @@ u32 sms_to_modulation_table[] = { 
	[3] = DQPSK,

};



static void smsdvb_print_dvb_stats(struct SMSHOSTLIB_STATISTICS_ST *p)

static struct dentry *smsdvb_debugfs;



static void smsdvb_print_dvb_stats(struct smsdvb_client_t *client,

				   struct SMSHOSTLIB_STATISTICS_ST *p)

{

	if (!(sms_dbg & 2))

	int n = 0;

	char *buf;



	if (!client->stats_data || atomic_read(&client->stats_count))

		return;



	printk(KERN_DEBUG "IsRfLocked = %d", p->IsRfLocked);

	printk(KERN_DEBUG "IsDemodLocked = %d", p->IsDemodLocked);

	printk(KERN_DEBUG "IsExternalLNAOn = %d", p->IsExternalLNAOn);

	printk(KERN_DEBUG "SNR = %d", p->SNR);

	printk(KERN_DEBUG "BER = %d", p->BER);

	printk(KERN_DEBUG "FIB_CRC = %d", p->FIB_CRC);

	printk(KERN_DEBUG "TS_PER = %d", p->TS_PER);

	printk(KERN_DEBUG "MFER = %d", p->MFER);

	printk(KERN_DEBUG "RSSI = %d", p->RSSI);

	printk(KERN_DEBUG "InBandPwr = %d", p->InBandPwr);

	printk(KERN_DEBUG "CarrierOffset = %d", p->CarrierOffset);

	printk(KERN_DEBUG "ModemState = %d", p->ModemState);

	printk(KERN_DEBUG "Frequency = %d", p->Frequency);

	printk(KERN_DEBUG "Bandwidth = %d", p->Bandwidth);

	printk(KERN_DEBUG "TransmissionMode = %d", p->TransmissionMode);

	printk(KERN_DEBUG "ModemState = %d", p->ModemState);

	printk(KERN_DEBUG "GuardInterval = %d", p->GuardInterval);

	printk(KERN_DEBUG "CodeRate = %d", p->CodeRate);

	printk(KERN_DEBUG "LPCodeRate = %d", p->LPCodeRate);

	printk(KERN_DEBUG "Hierarchy = %d", p->Hierarchy);

	printk(KERN_DEBUG "Constellation = %d", p->Constellation);

	printk(KERN_DEBUG "BurstSize = %d", p->BurstSize);

	printk(KERN_DEBUG "BurstDuration = %d", p->BurstDuration);

	printk(KERN_DEBUG "BurstCycleTime = %d", p->BurstCycleTime);

	printk(KERN_DEBUG "CalculatedBurstCycleTime = %d", p->CalculatedBurstCycleTime);

	printk(KERN_DEBUG "NumOfRows = %d", p->NumOfRows);

	printk(KERN_DEBUG "NumOfPaddCols = %d", p->NumOfPaddCols);

	printk(KERN_DEBUG "NumOfPunctCols = %d", p->NumOfPunctCols);

	printk(KERN_DEBUG "ErrorTSPackets = %d", p->ErrorTSPackets);

	printk(KERN_DEBUG "TotalTSPackets = %d", p->TotalTSPackets);

	printk(KERN_DEBUG "NumOfValidMpeTlbs = %d", p->NumOfValidMpeTlbs);

	printk(KERN_DEBUG "NumOfInvalidMpeTlbs = %d", p->NumOfInvalidMpeTlbs);

	printk(KERN_DEBUG "NumOfCorrectedMpeTlbs = %d", p->NumOfCorrectedMpeTlbs);

	printk(KERN_DEBUG "BERErrorCount = %d", p->BERErrorCount);

	printk(KERN_DEBUG "BERBitCount = %d", p->BERBitCount);

	printk(KERN_DEBUG "SmsToHostTxErrors = %d", p->SmsToHostTxErrors);

	printk(KERN_DEBUG "PreBER = %d", p->PreBER);

	printk(KERN_DEBUG "CellId = %d", p->CellId);

	printk(KERN_DEBUG "DvbhSrvIndHP = %d", p->DvbhSrvIndHP);

	printk(KERN_DEBUG "DvbhSrvIndLP = %d", p->DvbhSrvIndLP);

	printk(KERN_DEBUG "NumMPEReceived = %d", p->NumMPEReceived);

}



static void smsdvb_print_isdb_stats(struct SMSHOSTLIB_STATISTICS_ISDBT_ST *p)

	buf = client->stats_data;



	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsRfLocked = %d\n", p->IsRfLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsDemodLocked = %d\n", p->IsDemodLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsExternalLNAOn = %d\n", p->IsExternalLNAOn);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SNR = %d\n", p->SNR);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BER = %d\n", p->BER);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "FIB_CRC = %d\n", p->FIB_CRC);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "TS_PER = %d\n", p->TS_PER);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "MFER = %d\n", p->MFER);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "RSSI = %d\n", p->RSSI);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "InBandPwr = %d\n", p->InBandPwr);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CarrierOffset = %d\n", p->CarrierOffset);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "ModemState = %d\n", p->ModemState);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Frequency = %d\n", p->Frequency);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Bandwidth = %d\n", p->Bandwidth);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "TransmissionMode = %d\n", p->TransmissionMode);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "ModemState = %d\n", p->ModemState);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "GuardInterval = %d\n", p->GuardInterval);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CodeRate = %d\n", p->CodeRate);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "LPCodeRate = %d\n", p->LPCodeRate);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Hierarchy = %d\n", p->Hierarchy);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Constellation = %d\n", p->Constellation);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BurstSize = %d\n", p->BurstSize);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BurstDuration = %d\n", p->BurstDuration);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BurstCycleTime = %d\n", p->BurstCycleTime);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CalculatedBurstCycleTime = %d\n",

		      p->CalculatedBurstCycleTime);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfRows = %d\n", p->NumOfRows);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfPaddCols = %d\n", p->NumOfPaddCols);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfPunctCols = %d\n", p->NumOfPunctCols);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "ErrorTSPackets = %d\n", p->ErrorTSPackets);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "TotalTSPackets = %d\n", p->TotalTSPackets);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfValidMpeTlbs = %d\n", p->NumOfValidMpeTlbs);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfInvalidMpeTlbs = %d\n", p->NumOfInvalidMpeTlbs);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfCorrectedMpeTlbs = %d\n", p->NumOfCorrectedMpeTlbs);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BERErrorCount = %d\n", p->BERErrorCount);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "BERBitCount = %d\n", p->BERBitCount);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SmsToHostTxErrors = %d\n", p->SmsToHostTxErrors);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "PreBER = %d\n", p->PreBER);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CellId = %d\n", p->CellId);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "DvbhSrvIndHP = %d\n", p->DvbhSrvIndHP);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "DvbhSrvIndLP = %d\n", p->DvbhSrvIndLP);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumMPEReceived = %d\n", p->NumMPEReceived);



	atomic_set(&client->stats_count, n);

	wake_up(&client->stats_queue);

}



static void smsdvb_print_isdb_stats(struct smsdvb_client_t *client,

				    struct SMSHOSTLIB_STATISTICS_ISDBT_ST *p)

{

	int i;

	int i, n = 0;

	char *buf;



	if (!(sms_dbg & 2))

	if (!client->stats_data || atomic_read(&client->stats_count))

		return;



	printk(KERN_DEBUG "IsRfLocked = %d", p->IsRfLocked);

	printk(KERN_DEBUG "IsDemodLocked = %d", p->IsDemodLocked);

	printk(KERN_DEBUG "IsExternalLNAOn = %d", p->IsExternalLNAOn);

	printk(KERN_DEBUG "SNR = %d", p->SNR);

	printk(KERN_DEBUG "RSSI = %d", p->RSSI);

	printk(KERN_DEBUG "InBandPwr = %d", p->InBandPwr);

	printk(KERN_DEBUG "CarrierOffset = %d", p->CarrierOffset);

	printk(KERN_DEBUG "Frequency = %d", p->Frequency);

	printk(KERN_DEBUG "Bandwidth = %d", p->Bandwidth);

	printk(KERN_DEBUG "TransmissionMode = %d", p->TransmissionMode);

	printk(KERN_DEBUG "ModemState = %d", p->ModemState);

	printk(KERN_DEBUG "GuardInterval = %d", p->GuardInterval);

	printk(KERN_DEBUG "SystemType = %d", p->SystemType);

	printk(KERN_DEBUG "PartialReception = %d", p->PartialReception);

	printk(KERN_DEBUG "NumOfLayers = %d", p->NumOfLayers);

	printk(KERN_DEBUG "SmsToHostTxErrors = %d", p->SmsToHostTxErrors);

	buf = client->stats_data;



	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsRfLocked = %d\t\t", p->IsRfLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsDemodLocked = %d\t", p->IsDemodLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsExternalLNAOn = %d\n", p->IsExternalLNAOn);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SNR = %d dB\t\t", p->SNR);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "RSSI = %d dBm\t\t", p->RSSI);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "InBandPwr = %d dBm\n", p->InBandPwr);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CarrierOffset = %d\t", p->CarrierOffset);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Bandwidth = %d\t\t", p->Bandwidth);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Frequency = %d Hz\n", p->Frequency);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "TransmissionMode = %d\t", p->TransmissionMode);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "ModemState = %d\t\t", p->ModemState);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "GuardInterval = %d\n", p->GuardInterval);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SystemType = %d\t\t", p->SystemType);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "PartialReception = %d\t", p->PartialReception);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfLayers = %d\n", p->NumOfLayers);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SmsToHostTxErrors = %d\n", p->SmsToHostTxErrors);



	for (i = 0; i < 3; i++) {

		printk(KERN_DEBUG "%d: CodeRate = %d", i, p->LayerInfo[i].CodeRate);

		printk(KERN_DEBUG "%d: Constellation = %d", i, p->LayerInfo[i].Constellation);

		printk(KERN_DEBUG "%d: BER = %d", i, p->LayerInfo[i].BER);

		printk(KERN_DEBUG "%d: BERErrorCount = %d", i, p->LayerInfo[i].BERErrorCount);

		printk(KERN_DEBUG "%d: BERBitCount = %d", i, p->LayerInfo[i].BERBitCount);

		printk(KERN_DEBUG "%d: PreBER = %d", i, p->LayerInfo[i].PreBER);

		printk(KERN_DEBUG "%d: TS_PER = %d", i, p->LayerInfo[i].TS_PER);

		printk(KERN_DEBUG "%d: ErrorTSPackets = %d", i, p->LayerInfo[i].ErrorTSPackets);

		printk(KERN_DEBUG "%d: TotalTSPackets = %d", i, p->LayerInfo[i].TotalTSPackets);

		printk(KERN_DEBUG "%d: TILdepthI = %d", i, p->LayerInfo[i].TILdepthI);

		printk(KERN_DEBUG "%d: NumberOfSegments = %d", i, p->LayerInfo[i].NumberOfSegments);

		printk(KERN_DEBUG "%d: TMCCErrors = %d", i, p->LayerInfo[i].TMCCErrors);

	}

		if (p->LayerInfo[i].NumberOfSegments < 1 ||

		    p->LayerInfo[i].NumberOfSegments > 13)

			continue;



		n += snprintf(&buf[n], PAGE_SIZE - n, "\nLayer %d\n", i);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tCodeRate = %d\t",

			      p->LayerInfo[i].CodeRate);

		n += snprintf(&buf[n], PAGE_SIZE - n, "Constellation = %d\n",

			      p->LayerInfo[i].Constellation);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tBER = %-5d\t",

			      p->LayerInfo[i].BER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tBERErrorCount = %-5d\t",

			      p->LayerInfo[i].BERErrorCount);

		n += snprintf(&buf[n], PAGE_SIZE - n, "BERBitCount = %-5d\n",

			      p->LayerInfo[i].BERBitCount);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tPreBER = %-5d\t",

			      p->LayerInfo[i].PreBER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tTS_PER = %-5d\n",

			      p->LayerInfo[i].TS_PER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tErrorTSPackets = %-5d\t",

			      p->LayerInfo[i].ErrorTSPackets);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TotalTSPackets = %-5d\t",

			      p->LayerInfo[i].TotalTSPackets);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TILdepthI = %d\n",

			      p->LayerInfo[i].TILdepthI);

		n += snprintf(&buf[n], PAGE_SIZE - n,

			      "\tNumberOfSegments = %d\t",

			      p->LayerInfo[i].NumberOfSegments);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TMCCErrors = %d\n",

			      p->LayerInfo[i].TMCCErrors);

	}



	atomic_set(&client->stats_count, n);

	wake_up(&client->stats_queue);

}



static void

smsdvb_print_isdb_stats_ex(struct SMSHOSTLIB_STATISTICS_ISDBT_EX_ST *p)

smsdvb_print_isdb_stats_ex(struct smsdvb_client_t *client,

			   struct SMSHOSTLIB_STATISTICS_ISDBT_EX_ST *p)

{

	int i;

	int i, n = 0;

	char *buf;



	if (!(sms_dbg & 2))

	if (!client->stats_data || atomic_read(&client->stats_count))

		return;



	printk(KERN_DEBUG "IsRfLocked = %d", p->IsRfLocked);

	printk(KERN_DEBUG "IsDemodLocked = %d", p->IsDemodLocked);

	printk(KERN_DEBUG "IsExternalLNAOn = %d", p->IsExternalLNAOn);

	printk(KERN_DEBUG "SNR = %d", p->SNR);

	printk(KERN_DEBUG "RSSI = %d", p->RSSI);

	printk(KERN_DEBUG "InBandPwr = %d", p->InBandPwr);

	printk(KERN_DEBUG "CarrierOffset = %d", p->CarrierOffset);

	printk(KERN_DEBUG "Frequency = %d", p->Frequency);

	printk(KERN_DEBUG "Bandwidth = %d", p->Bandwidth);

	printk(KERN_DEBUG "TransmissionMode = %d", p->TransmissionMode);

	printk(KERN_DEBUG "ModemState = %d", p->ModemState);

	printk(KERN_DEBUG "GuardInterval = %d", p->GuardInterval);

	printk(KERN_DEBUG "SystemType = %d", p->SystemType);

	printk(KERN_DEBUG "PartialReception = %d", p->PartialReception);

	printk(KERN_DEBUG "NumOfLayers = %d", p->NumOfLayers);

	printk(KERN_DEBUG "SegmentNumber = %d", p->SegmentNumber);

	printk(KERN_DEBUG "TuneBW = %d", p->TuneBW);

	buf = client->stats_data;



	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsRfLocked = %d\t\t", p->IsRfLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsDemodLocked = %d\t", p->IsDemodLocked);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "IsExternalLNAOn = %d\n", p->IsExternalLNAOn);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SNR = %d dB\t\t", p->SNR);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "RSSI = %d dBm\t\t", p->RSSI);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "InBandPwr = %d dBm\n", p->InBandPwr);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "CarrierOffset = %d\t", p->CarrierOffset);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Bandwidth = %d\t\t", p->Bandwidth);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "Frequency = %d Hz\n", p->Frequency);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "TransmissionMode = %d\t", p->TransmissionMode);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "ModemState = %d\t\t", p->ModemState);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "GuardInterval = %d\n", p->GuardInterval);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "SystemType = %d\t\t", p->SystemType);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "PartialReception = %d\t", p->PartialReception);

	n += snprintf(&buf[n], PAGE_SIZE - n,

		      "NumOfLayers = %d\n", p->NumOfLayers);

	n += snprintf(&buf[n], PAGE_SIZE - n, "SegmentNumber = %d\t",

		      p->SegmentNumber);

	n += snprintf(&buf[n], PAGE_SIZE - n, "TuneBW = %d\n",

		      p->TuneBW);



	for (i = 0; i < 3; i++) {

		printk(KERN_DEBUG "%d: CodeRate = %d", i, p->LayerInfo[i].CodeRate);

		printk(KERN_DEBUG "%d: Constellation = %d", i, p->LayerInfo[i].Constellation);

		printk(KERN_DEBUG "%d: BER = %d", i, p->LayerInfo[i].BER);

		printk(KERN_DEBUG "%d: BERErrorCount = %d", i, p->LayerInfo[i].BERErrorCount);

		printk(KERN_DEBUG "%d: BERBitCount = %d", i, p->LayerInfo[i].BERBitCount);

		printk(KERN_DEBUG "%d: PreBER = %d", i, p->LayerInfo[i].PreBER);

		printk(KERN_DEBUG "%d: TS_PER = %d", i, p->LayerInfo[i].TS_PER);

		printk(KERN_DEBUG "%d: ErrorTSPackets = %d", i, p->LayerInfo[i].ErrorTSPackets);

		printk(KERN_DEBUG "%d: TotalTSPackets = %d", i, p->LayerInfo[i].TotalTSPackets);

		printk(KERN_DEBUG "%d: TILdepthI = %d", i, p->LayerInfo[i].TILdepthI);

		printk(KERN_DEBUG "%d: NumberOfSegments = %d", i, p->LayerInfo[i].NumberOfSegments);

		printk(KERN_DEBUG "%d: TMCCErrors = %d", i, p->LayerInfo[i].TMCCErrors);

		if (p->LayerInfo[i].NumberOfSegments < 1 ||

		    p->LayerInfo[i].NumberOfSegments > 13)

			continue;



		n += snprintf(&buf[n], PAGE_SIZE - n, "\nLayer %d\n", i);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tCodeRate = %d\t",

			      p->LayerInfo[i].CodeRate);

		n += snprintf(&buf[n], PAGE_SIZE - n, "Constellation = %d\n",

			      p->LayerInfo[i].Constellation);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tBER = %-5d\t",

			      p->LayerInfo[i].BER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tBERErrorCount = %-5d\t",

			      p->LayerInfo[i].BERErrorCount);

		n += snprintf(&buf[n], PAGE_SIZE - n, "BERBitCount = %-5d\n",

			      p->LayerInfo[i].BERBitCount);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tPreBER = %-5d\t",

			      p->LayerInfo[i].PreBER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tTS_PER = %-5d\n",

			      p->LayerInfo[i].TS_PER);

		n += snprintf(&buf[n], PAGE_SIZE - n, "\tErrorTSPackets = %-5d\t",

			      p->LayerInfo[i].ErrorTSPackets);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TotalTSPackets = %-5d\t",

			      p->LayerInfo[i].TotalTSPackets);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TILdepthI = %d\n",

			      p->LayerInfo[i].TILdepthI);

		n += snprintf(&buf[n], PAGE_SIZE - n,

			      "\tNumberOfSegments = %d\t",

			      p->LayerInfo[i].NumberOfSegments);

		n += snprintf(&buf[n], PAGE_SIZE - n, "TMCCErrors = %d\n",

			      p->LayerInfo[i].TMCCErrors);

	}



	atomic_set(&client->stats_count, n);

	wake_up(&client->stats_queue);

}



static int smsdvb_stats_open(struct inode *inode, struct file *file)

{

	struct smsdvb_client_t *client = inode->i_private;



	atomic_set(&client->stats_count, 0);

	client->stats_was_read = false;



	init_waitqueue_head(&client->stats_queue);



	client->stats_data = kmalloc(PAGE_SIZE, GFP_KERNEL);

	if (client->stats_data == NULL)

		return -ENOMEM;



	file->private_data = client;



	return 0;

}



static ssize_t smsdvb_stats_read(struct file *file, char __user *user_buf,

				      size_t nbytes, loff_t *ppos)

{

	struct smsdvb_client_t *client = file->private_data;



	if (!client->stats_data || client->stats_was_read)

		return 0;



	wait_event_interruptible(client->stats_queue,

				 atomic_read(&client->stats_count));



	return simple_read_from_buffer(user_buf, nbytes, ppos,

				       client->stats_data,

				       atomic_read(&client->stats_count));



	client->stats_was_read = true;

}



static int smsdvb_stats_release(struct inode *inode, struct file *file)

{

	struct smsdvb_client_t *client = file->private_data;



	kfree(client->stats_data);

	client->stats_data = NULL;



	return 0;

}



static const struct file_operations debugfs_stats_ops = {

	.open = smsdvb_stats_open,

	.read = smsdvb_stats_read,

	.release = smsdvb_stats_release,

	.llseek = generic_file_llseek,

};



static int create_stats_debugfs(struct smsdvb_client_t *client)

{

	struct smscore_device_t *coredev = client->coredev;

	struct dentry *d;



	if (!smsdvb_debugfs)

		return -ENODEV;



	client->debugfs = debugfs_create_dir(coredev->devpath, smsdvb_debugfs);

	if (IS_ERR_OR_NULL(client->debugfs)) {

		sms_info("Unable to create debugfs %s directory.\n",

			 coredev->devpath);

		return -ENODEV;

	}



	d = debugfs_create_file("stats", S_IRUGO | S_IWUSR, client->debugfs,

				client, &debugfs_stats_ops);

	if (!d) {

		debugfs_remove(client->debugfs);

		return -ENOMEM;

	}



	return 0;

}



static void release_stats_debugfs(struct smsdvb_client_t *client)

{

	if (!client->debugfs)

		return;



	debugfs_remove_recursive(client->debugfs);



	client->debugfs = NULL;

}



/* Events that may come from DVB v3 adapter */
@@ -476,7 +708,7 @@ static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client, 
	struct dvb_frontend *fe = &client->frontend;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;



	smsdvb_print_dvb_stats(p);

	smsdvb_print_dvb_stats(client, p);



	client->fe_status = sms_to_status(p->IsDemodLocked, p->IsRfLocked);
@@ -526,7 +758,7 @@ static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client, 
	struct SMSHOSTLIB_ISDBT_LAYER_STAT_ST *lr;

	int i, n_layers;



	smsdvb_print_isdb_stats(p);

	smsdvb_print_isdb_stats(client, p);



	/* Update ISDB-T transmission parameters */

	c->frequency = p->Frequency;
@@ -602,7 +834,7 @@ static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client, 
	struct SMSHOSTLIB_ISDBT_LAYER_STAT_ST *lr;

	int i, n_layers;



	smsdvb_print_isdb_stats_ex(p);

	smsdvb_print_isdb_stats_ex(client, p);



	/* Update ISDB-T transmission parameters */

	c->frequency = p->Frequency;
@@ -766,6 +998,7 @@ static void smsdvb_unregister_client(struct smsdvb_client_t *client) 


	list_del(&client->entry);



	release_stats_debugfs(client);

	smscore_unregister_client(client->smsclient);

	dvb_unregister_frontend(&client->frontend);

	dvb_dmxdev_release(&client->dmxdev);
@@ -1303,6 +1536,9 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev, 
	sms_info("success");

	sms_board_setup(coredev);



	if (create_stats_debugfs(client) < 0)

		sms_info("failed to create debugfs node");



	return 0;



client_error:
@@ -1325,10 +1561,17 @@ static int smsdvb_hotplug(struct smscore_device_t *coredev, 
static int __init smsdvb_module_init(void)

{

	int rc;

	struct dentry *d;



	INIT_LIST_HEAD(&g_smsdvb_clients);

	kmutex_init(&g_smsdvb_clientslock);



	d = debugfs_create_dir("smsdvb", usb_debug_root);

	if (IS_ERR_OR_NULL(d))

		sms_err("Couldn't create sysfs node for smsdvb");

	else

		smsdvb_debugfs = d;



	rc = smscore_register_hotplug(smsdvb_hotplug);



	sms_debug("");
@@ -1346,6 +1589,9 @@ static void __exit smsdvb_module_exit(void) 
	       smsdvb_unregister_client(

			(struct smsdvb_client_t *) g_smsdvb_clients.next);



	if (smsdvb_debugfs)

		debugfs_remove_recursive(smsdvb_debugfs);



	kmutex_unlock(&g_smsdvb_clientslock);

}