[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: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2013-03-09 22:33:06 -03:00
parent c02272f9b9
commit 3f6b87cff6

View file

@ -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);
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 SMSHOSTLIB_STATISTICS_ISDBT_ST *p)
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);
}