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kernel_optimize_test/drivers/media/dvb/siano/smsdvb.c
Gianluca Gennari d138210ffa [media] smsdvb: fix get_frontend 
In the get_frontend function, an internal copy of the dtv_frontend_properties
struct (which is never initialized) is copied over the frontend property cache
data structure, resetting everything to 0.
In particular, the delivery system is reset to 0 (which is an invalid value)
so the driver stops working as soon as a DVBv3 application calls the
get_frontend function, giving this error:

dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to delivery
system 0

This patch eliminates the unused internal copy of the dtv_frontend_properties
struct, and gives a proper implementation of the get_frontend function.

The original author of the patch is Panagiotis Malakoudis, who also tested
this new version on Ubuntu 11.10 with the latest media_build tree installed.
The original patch has been used on MIPS set-top-boxes for over one year,
but it was never posted on the linux-media list.
I ported the code to the current media_build tree (converting it to use the
dtv_frontend_properties struct) and added basic support for ISDB-T (untested).

Signed-off-by: Panagiotis Malakoudis <malakudi@gmail.com>
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-08 11:20:12 -03:00

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/****************************************************************
Siano Mobile Silicon, Inc.
MDTV receiver kernel modules.
Copyright (C) 2006-2008, Uri Shkolnik
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
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 "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "smscoreapi.h"
#include "smsendian.h"
#include "sms-cards.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct smsdvb_client_t {
struct list_head entry;
struct smscore_device_t *coredev;
struct smscore_client_t *smsclient;
struct dvb_adapter adapter;
struct dvb_demux demux;
struct dmxdev dmxdev;
struct dvb_frontend frontend;
fe_status_t fe_status;
struct completion tune_done;
struct SMSHOSTLIB_STATISTICS_DVB_S sms_stat_dvb;
int event_fe_state;
int event_unc_state;
};
static struct list_head g_smsdvb_clients;
static struct mutex g_smsdvb_clientslock;
static int sms_dbg;
module_param_named(debug, sms_dbg, int, 0644);
MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
/* Events that may come from DVB v3 adapter */
static void sms_board_dvb3_event(struct smsdvb_client_t *client,
enum SMS_DVB3_EVENTS event) {
struct smscore_device_t *coredev = client->coredev;
switch (event) {
case DVB3_EVENT_INIT:
sms_debug("DVB3_EVENT_INIT");
sms_board_event(coredev, BOARD_EVENT_BIND);
break;
case DVB3_EVENT_SLEEP:
sms_debug("DVB3_EVENT_SLEEP");
sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
break;
case DVB3_EVENT_HOTPLUG:
sms_debug("DVB3_EVENT_HOTPLUG");
sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
break;
case DVB3_EVENT_FE_LOCK:
if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
client->event_fe_state = DVB3_EVENT_FE_LOCK;
sms_debug("DVB3_EVENT_FE_LOCK");
sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
}
break;
case DVB3_EVENT_FE_UNLOCK:
if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
sms_debug("DVB3_EVENT_FE_UNLOCK");
sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
}
break;
case DVB3_EVENT_UNC_OK:
if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
client->event_unc_state = DVB3_EVENT_UNC_OK;
sms_debug("DVB3_EVENT_UNC_OK");
sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
}
break;
case DVB3_EVENT_UNC_ERR:
if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
client->event_unc_state = DVB3_EVENT_UNC_ERR;
sms_debug("DVB3_EVENT_UNC_ERR");
sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
}
break;
default:
sms_err("Unknown dvb3 api event");
break;
}
}
static void smsdvb_update_dvb_stats(struct RECEPTION_STATISTICS_S *pReceptionData,
struct SMSHOSTLIB_STATISTICS_ST *p)
{
if (sms_dbg & 2) {
printk(KERN_DEBUG "Reserved = %d", p->Reserved);
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 "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);
}
pReceptionData->IsDemodLocked = p->IsDemodLocked;
pReceptionData->SNR = p->SNR;
pReceptionData->BER = p->BER;
pReceptionData->BERErrorCount = p->BERErrorCount;
pReceptionData->InBandPwr = p->InBandPwr;
pReceptionData->ErrorTSPackets = p->ErrorTSPackets;
};
static void smsdvb_update_isdbt_stats(struct RECEPTION_STATISTICS_S *pReceptionData,
struct SMSHOSTLIB_STATISTICS_ISDBT_ST *p)
{
int i;
if (sms_dbg & 2) {
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);
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);
}
}
pReceptionData->IsDemodLocked = p->IsDemodLocked;
pReceptionData->SNR = p->SNR;
pReceptionData->InBandPwr = p->InBandPwr;
pReceptionData->ErrorTSPackets = 0;
pReceptionData->BER = 0;
pReceptionData->BERErrorCount = 0;
for (i = 0; i < 3; i++) {
pReceptionData->BER += p->LayerInfo[i].BER;
pReceptionData->BERErrorCount += p->LayerInfo[i].BERErrorCount;
pReceptionData->ErrorTSPackets += p->LayerInfo[i].ErrorTSPackets;
}
}
static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
{
struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) (((u8 *) cb->p)
+ cb->offset);
u32 *pMsgData = (u32 *) phdr + 1;
/*u32 MsgDataLen = phdr->msgLength - sizeof(struct SmsMsgHdr_ST);*/
bool is_status_update = false;
smsendian_handle_rx_message((struct SmsMsgData_ST *) phdr);
switch (phdr->msgType) {
case MSG_SMS_DVBT_BDA_DATA:
dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
cb->size - sizeof(struct SmsMsgHdr_ST));
break;
case MSG_SMS_RF_TUNE_RES:
case MSG_SMS_ISDBT_TUNE_RES:
complete(&client->tune_done);
break;
case MSG_SMS_SIGNAL_DETECTED_IND:
sms_info("MSG_SMS_SIGNAL_DETECTED_IND");
client->sms_stat_dvb.TransmissionData.IsDemodLocked = true;
is_status_update = true;
break;
case MSG_SMS_NO_SIGNAL_IND:
sms_info("MSG_SMS_NO_SIGNAL_IND");
client->sms_stat_dvb.TransmissionData.IsDemodLocked = false;
is_status_update = true;
break;
case MSG_SMS_TRANSMISSION_IND: {
sms_info("MSG_SMS_TRANSMISSION_IND");
pMsgData++;
memcpy(&client->sms_stat_dvb.TransmissionData, pMsgData,
sizeof(struct TRANSMISSION_STATISTICS_S));
/* Mo need to correct guard interval
* (as opposed to old statistics message).
*/
CORRECT_STAT_BANDWIDTH(client->sms_stat_dvb.TransmissionData);
CORRECT_STAT_TRANSMISSON_MODE(
client->sms_stat_dvb.TransmissionData);
is_status_update = true;
break;
}
case MSG_SMS_HO_PER_SLICES_IND: {
struct RECEPTION_STATISTICS_S *pReceptionData =
&client->sms_stat_dvb.ReceptionData;
struct SRVM_SIGNAL_STATUS_S SignalStatusData;
/*sms_info("MSG_SMS_HO_PER_SLICES_IND");*/
pMsgData++;
SignalStatusData.result = pMsgData[0];
SignalStatusData.snr = pMsgData[1];
SignalStatusData.inBandPower = (s32) pMsgData[2];
SignalStatusData.tsPackets = pMsgData[3];
SignalStatusData.etsPackets = pMsgData[4];
SignalStatusData.constellation = pMsgData[5];
SignalStatusData.hpCode = pMsgData[6];
SignalStatusData.tpsSrvIndLP = pMsgData[7] & 0x03;
SignalStatusData.tpsSrvIndHP = pMsgData[8] & 0x03;
SignalStatusData.cellId = pMsgData[9] & 0xFFFF;
SignalStatusData.reason = pMsgData[10];
SignalStatusData.requestId = pMsgData[11];
pReceptionData->IsRfLocked = pMsgData[16];
pReceptionData->IsDemodLocked = pMsgData[17];
pReceptionData->ModemState = pMsgData[12];
pReceptionData->SNR = pMsgData[1];
pReceptionData->BER = pMsgData[13];
pReceptionData->RSSI = pMsgData[14];
CORRECT_STAT_RSSI(client->sms_stat_dvb.ReceptionData);
pReceptionData->InBandPwr = (s32) pMsgData[2];
pReceptionData->CarrierOffset = (s32) pMsgData[15];
pReceptionData->TotalTSPackets = pMsgData[3];
pReceptionData->ErrorTSPackets = pMsgData[4];
/* TS PER */
if ((SignalStatusData.tsPackets + SignalStatusData.etsPackets)
> 0) {
pReceptionData->TS_PER = (SignalStatusData.etsPackets
* 100) / (SignalStatusData.tsPackets
+ SignalStatusData.etsPackets);
} else {
pReceptionData->TS_PER = 0;
}
pReceptionData->BERBitCount = pMsgData[18];
pReceptionData->BERErrorCount = pMsgData[19];
pReceptionData->MRC_SNR = pMsgData[20];
pReceptionData->MRC_InBandPwr = pMsgData[21];
pReceptionData->MRC_RSSI = pMsgData[22];
is_status_update = true;
break;
}
case MSG_SMS_GET_STATISTICS_RES: {
union {
struct SMSHOSTLIB_STATISTICS_ISDBT_ST isdbt;
struct SmsMsgStatisticsInfo_ST dvb;
} *p = (void *) (phdr + 1);
struct RECEPTION_STATISTICS_S *pReceptionData =
&client->sms_stat_dvb.ReceptionData;
sms_info("MSG_SMS_GET_STATISTICS_RES");
is_status_update = true;
switch (smscore_get_device_mode(client->coredev)) {
case DEVICE_MODE_ISDBT:
case DEVICE_MODE_ISDBT_BDA:
smsdvb_update_isdbt_stats(pReceptionData, &p->isdbt);
break;
default:
smsdvb_update_dvb_stats(pReceptionData, &p->dvb.Stat);
}
if (!pReceptionData->IsDemodLocked) {
pReceptionData->SNR = 0;
pReceptionData->BER = 0;
pReceptionData->BERErrorCount = 0;
pReceptionData->InBandPwr = 0;
pReceptionData->ErrorTSPackets = 0;
}
complete(&client->tune_done);
break;
}
default:
sms_info("Unhandled message %d", phdr->msgType);
}
smscore_putbuffer(client->coredev, cb);
if (is_status_update) {
if (client->sms_stat_dvb.ReceptionData.IsDemodLocked) {
client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER
| FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
if (client->sms_stat_dvb.ReceptionData.ErrorTSPackets
== 0)
sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
else
sms_board_dvb3_event(client,
DVB3_EVENT_UNC_ERR);
} else {
if (client->sms_stat_dvb.ReceptionData.IsRfLocked)
client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
else
client->fe_status = 0;
sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
}
}
return 0;
}
static void smsdvb_unregister_client(struct smsdvb_client_t *client)
{
/* must be called under clientslock */
list_del(&client->entry);
smscore_unregister_client(client->smsclient);
dvb_unregister_frontend(&client->frontend);
dvb_dmxdev_release(&client->dmxdev);
dvb_dmx_release(&client->demux);
dvb_unregister_adapter(&client->adapter);
kfree(client);
}
static void smsdvb_onremove(void *context)
{
kmutex_lock(&g_smsdvb_clientslock);
smsdvb_unregister_client((struct smsdvb_client_t *) context);
kmutex_unlock(&g_smsdvb_clientslock);
}
static int smsdvb_start_feed(struct dvb_demux_feed *feed)
{
struct smsdvb_client_t *client =
container_of(feed->demux, struct smsdvb_client_t, demux);
struct SmsMsgData_ST PidMsg;
sms_debug("add pid %d(%x)",
feed->pid, feed->pid);
PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
PidMsg.xMsgHeader.msgDstId = HIF_TASK;
PidMsg.xMsgHeader.msgFlags = 0;
PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ;
PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
PidMsg.msgData[0] = feed->pid;
smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
return smsclient_sendrequest(client->smsclient,
&PidMsg, sizeof(PidMsg));
}
static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
{
struct smsdvb_client_t *client =
container_of(feed->demux, struct smsdvb_client_t, demux);
struct SmsMsgData_ST PidMsg;
sms_debug("remove pid %d(%x)",
feed->pid, feed->pid);
PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
PidMsg.xMsgHeader.msgDstId = HIF_TASK;
PidMsg.xMsgHeader.msgFlags = 0;
PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ;
PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
PidMsg.msgData[0] = feed->pid;
smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
return smsclient_sendrequest(client->smsclient,
&PidMsg, sizeof(PidMsg));
}
static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
void *buffer, size_t size,
struct completion *completion)
{
int rc;
smsendian_handle_tx_message((struct SmsMsgHdr_ST *)buffer);
rc = smsclient_sendrequest(client->smsclient, buffer, size);
if (rc < 0)
return rc;
return wait_for_completion_timeout(completion,
msecs_to_jiffies(2000)) ?
0 : -ETIME;
}
static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
{
int rc;
struct SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ,
DVBT_BDA_CONTROL_MSG_ID,
HIF_TASK,
sizeof(struct SmsMsgHdr_ST), 0 };
rc = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
&client->tune_done);
return rc;
}
static inline int led_feedback(struct smsdvb_client_t *client)
{
if (client->fe_status & FE_HAS_LOCK)
return sms_board_led_feedback(client->coredev,
(client->sms_stat_dvb.ReceptionData.BER
== 0) ? SMS_LED_HI : SMS_LED_LO);
else
return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
}
static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
{
int rc;
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
rc = smsdvb_send_statistics_request(client);
*stat = client->fe_status;
led_feedback(client);
return rc;
}
static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
{
int rc;
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
rc = smsdvb_send_statistics_request(client);
*ber = client->sms_stat_dvb.ReceptionData.BER;
led_feedback(client);
return rc;
}
static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
int rc;
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
rc = smsdvb_send_statistics_request(client);
if (client->sms_stat_dvb.ReceptionData.InBandPwr < -95)
*strength = 0;
else if (client->sms_stat_dvb.ReceptionData.InBandPwr > -29)
*strength = 100;
else
*strength =
(client->sms_stat_dvb.ReceptionData.InBandPwr
+ 95) * 3 / 2;
led_feedback(client);
return rc;
}
static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
{
int rc;
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
rc = smsdvb_send_statistics_request(client);
*snr = client->sms_stat_dvb.ReceptionData.SNR;
led_feedback(client);
return rc;
}
static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
int rc;
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
rc = smsdvb_send_statistics_request(client);
*ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;
led_feedback(client);
return rc;
}
static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *tune)
{
sms_debug("");
tune->min_delay_ms = 400;
tune->step_size = 250000;
tune->max_drift = 0;
return 0;
}
static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
struct {
struct SmsMsgHdr_ST Msg;
u32 Data[3];
} Msg;
int ret;
client->fe_status = FE_HAS_SIGNAL;
client->event_fe_state = -1;
client->event_unc_state = -1;
fe->dtv_property_cache.delivery_system = SYS_DVBT;
Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
Msg.Msg.msgDstId = HIF_TASK;
Msg.Msg.msgFlags = 0;
Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
Msg.Msg.msgLength = sizeof(Msg);
Msg.Data[0] = c->frequency;
Msg.Data[2] = 12000000;
sms_info("%s: freq %d band %d", __func__, c->frequency,
c->bandwidth_hz);
switch (c->bandwidth_hz / 1000000) {
case 8:
Msg.Data[1] = BW_8_MHZ;
break;
case 7:
Msg.Data[1] = BW_7_MHZ;
break;
case 6:
Msg.Data[1] = BW_6_MHZ;
break;
case 0:
return -EOPNOTSUPP;
default:
return -EINVAL;
}
/* Disable LNA, if any. An error is returned if no LNA is present */
ret = sms_board_lna_control(client->coredev, 0);
if (ret == 0) {
fe_status_t status;
/* tune with LNA off at first */
ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
&client->tune_done);
smsdvb_read_status(fe, &status);
if (status & FE_HAS_LOCK)
return ret;
/* previous tune didn't lock - enable LNA and tune again */
sms_board_lna_control(client->coredev, 1);
}
return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
&client->tune_done);
}
static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
struct {
struct SmsMsgHdr_ST Msg;
u32 Data[4];
} Msg;
fe->dtv_property_cache.delivery_system = SYS_ISDBT;
Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
Msg.Msg.msgDstId = HIF_TASK;
Msg.Msg.msgFlags = 0;
Msg.Msg.msgType = MSG_SMS_ISDBT_TUNE_REQ;
Msg.Msg.msgLength = sizeof(Msg);
if (c->isdbt_sb_segment_idx == -1)
c->isdbt_sb_segment_idx = 0;
switch (c->isdbt_sb_segment_count) {
case 3:
Msg.Data[1] = BW_ISDBT_3SEG;
break;
case 1:
Msg.Data[1] = BW_ISDBT_1SEG;
break;
case 0: /* AUTO */
switch (c->bandwidth_hz / 1000000) {
case 8:
case 7:
c->isdbt_sb_segment_count = 3;
Msg.Data[1] = BW_ISDBT_3SEG;
break;
case 6:
c->isdbt_sb_segment_count = 1;
Msg.Data[1] = BW_ISDBT_1SEG;
break;
default: /* Assumes 6 MHZ bw */
c->isdbt_sb_segment_count = 1;
c->bandwidth_hz = 6000;
Msg.Data[1] = BW_ISDBT_1SEG;
break;
}
break;
default:
sms_info("Segment count %d not supported", c->isdbt_sb_segment_count);
return -EINVAL;
}
Msg.Data[0] = c->frequency;
Msg.Data[2] = 12000000;
Msg.Data[3] = c->isdbt_sb_segment_idx;
sms_info("%s: freq %d segwidth %d segindex %d\n", __func__,
c->frequency, c->isdbt_sb_segment_count,
c->isdbt_sb_segment_idx);
return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
&client->tune_done);
}
static int smsdvb_set_frontend(struct dvb_frontend *fe)
{
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
struct smscore_device_t *coredev = client->coredev;
switch (smscore_get_device_mode(coredev)) {
case DEVICE_MODE_DVBT:
case DEVICE_MODE_DVBT_BDA:
return smsdvb_dvbt_set_frontend(fe);
case DEVICE_MODE_ISDBT:
case DEVICE_MODE_ISDBT_BDA:
return smsdvb_isdbt_set_frontend(fe);
default:
return -EINVAL;
}
}
static int smsdvb_get_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
struct smscore_device_t *coredev = client->coredev;
struct TRANSMISSION_STATISTICS_S *td =
&client->sms_stat_dvb.TransmissionData;
switch (smscore_get_device_mode(coredev)) {
case DEVICE_MODE_DVBT:
case DEVICE_MODE_DVBT_BDA:
fep->frequency = td->Frequency;
switch (td->Bandwidth) {
case 6:
fep->bandwidth_hz = 6000000;
break;
case 7:
fep->bandwidth_hz = 7000000;
break;
case 8:
fep->bandwidth_hz = 8000000;
break;
}
switch (td->TransmissionMode) {
case 2:
fep->transmission_mode = TRANSMISSION_MODE_2K;
break;
case 8:
fep->transmission_mode = TRANSMISSION_MODE_8K;
}
switch (td->GuardInterval) {
case 0:
fep->guard_interval = GUARD_INTERVAL_1_32;
break;
case 1:
fep->guard_interval = GUARD_INTERVAL_1_16;
break;
case 2:
fep->guard_interval = GUARD_INTERVAL_1_8;
break;
case 3:
fep->guard_interval = GUARD_INTERVAL_1_4;
break;
}
switch (td->CodeRate) {
case 0:
fep->code_rate_HP = FEC_1_2;
break;
case 1:
fep->code_rate_HP = FEC_2_3;
break;
case 2:
fep->code_rate_HP = FEC_3_4;
break;
case 3:
fep->code_rate_HP = FEC_5_6;
break;
case 4:
fep->code_rate_HP = FEC_7_8;
break;
}
switch (td->LPCodeRate) {
case 0:
fep->code_rate_LP = FEC_1_2;
break;
case 1:
fep->code_rate_LP = FEC_2_3;
break;
case 2:
fep->code_rate_LP = FEC_3_4;
break;
case 3:
fep->code_rate_LP = FEC_5_6;
break;
case 4:
fep->code_rate_LP = FEC_7_8;
break;
}
switch (td->Constellation) {
case 0:
fep->modulation = QPSK;
break;
case 1:
fep->modulation = QAM_16;
break;
case 2:
fep->modulation = QAM_64;
break;
}
switch (td->Hierarchy) {
case 0:
fep->hierarchy = HIERARCHY_NONE;
break;
case 1:
fep->hierarchy = HIERARCHY_1;
break;
case 2:
fep->hierarchy = HIERARCHY_2;
break;
case 3:
fep->hierarchy = HIERARCHY_4;
break;
}
fep->inversion = INVERSION_AUTO;
break;
case DEVICE_MODE_ISDBT:
case DEVICE_MODE_ISDBT_BDA:
fep->frequency = td->Frequency;
fep->bandwidth_hz = 6000000;
/* todo: retrive the other parameters */
break;
default:
return -EINVAL;
}
return 0;
}
static int smsdvb_init(struct dvb_frontend *fe)
{
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
sms_board_power(client->coredev, 1);
sms_board_dvb3_event(client, DVB3_EVENT_INIT);
return 0;
}
static int smsdvb_sleep(struct dvb_frontend *fe)
{
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
sms_board_led_feedback(client->coredev, SMS_LED_OFF);
sms_board_power(client->coredev, 0);
sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
return 0;
}
static void smsdvb_release(struct dvb_frontend *fe)
{
/* do nothing */
}
static struct dvb_frontend_ops smsdvb_fe_ops = {
.info = {
.name = "Siano Mobile Digital MDTV Receiver",
.frequency_min = 44250000,
.frequency_max = 867250000,
.frequency_stepsize = 250000,
.caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_RECOVER |
FE_CAN_HIERARCHY_AUTO,
},
.release = smsdvb_release,
.set_frontend = smsdvb_set_frontend,
.get_frontend = smsdvb_get_frontend,
.get_tune_settings = smsdvb_get_tune_settings,
.read_status = smsdvb_read_status,
.read_ber = smsdvb_read_ber,
.read_signal_strength = smsdvb_read_signal_strength,
.read_snr = smsdvb_read_snr,
.read_ucblocks = smsdvb_read_ucblocks,
.init = smsdvb_init,
.sleep = smsdvb_sleep,
};
static int smsdvb_hotplug(struct smscore_device_t *coredev,
struct device *device, int arrival)
{
struct smsclient_params_t params;
struct smsdvb_client_t *client;
int rc;
/* device removal handled by onremove callback */
if (!arrival)
return 0;
client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
if (!client) {
sms_err("kmalloc() failed");
return -ENOMEM;
}
/* register dvb adapter */
rc = dvb_register_adapter(&client->adapter,
sms_get_board(
smscore_get_board_id(coredev))->name,
THIS_MODULE, device, adapter_nr);
if (rc < 0) {
sms_err("dvb_register_adapter() failed %d", rc);
goto adapter_error;
}
/* init dvb demux */
client->demux.dmx.capabilities = DMX_TS_FILTERING;
client->demux.filternum = 32; /* todo: nova ??? */
client->demux.feednum = 32;
client->demux.start_feed = smsdvb_start_feed;
client->demux.stop_feed = smsdvb_stop_feed;
rc = dvb_dmx_init(&client->demux);
if (rc < 0) {
sms_err("dvb_dmx_init failed %d", rc);
goto dvbdmx_error;
}
/* init dmxdev */
client->dmxdev.filternum = 32;
client->dmxdev.demux = &client->demux.dmx;
client->dmxdev.capabilities = 0;
rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
if (rc < 0) {
sms_err("dvb_dmxdev_init failed %d", rc);
goto dmxdev_error;
}
/* init and register frontend */
memcpy(&client->frontend.ops, &smsdvb_fe_ops,
sizeof(struct dvb_frontend_ops));
switch (smscore_get_device_mode(coredev)) {
case DEVICE_MODE_DVBT:
case DEVICE_MODE_DVBT_BDA:
client->frontend.ops.delsys[0] = SYS_DVBT;
break;
case DEVICE_MODE_ISDBT:
case DEVICE_MODE_ISDBT_BDA:
client->frontend.ops.delsys[0] = SYS_ISDBT;
break;
}
rc = dvb_register_frontend(&client->adapter, &client->frontend);
if (rc < 0) {
sms_err("frontend registration failed %d", rc);
goto frontend_error;
}
params.initial_id = 1;
params.data_type = MSG_SMS_DVBT_BDA_DATA;
params.onresponse_handler = smsdvb_onresponse;
params.onremove_handler = smsdvb_onremove;
params.context = client;
rc = smscore_register_client(coredev, &params, &client->smsclient);
if (rc < 0) {
sms_err("smscore_register_client() failed %d", rc);
goto client_error;
}
client->coredev = coredev;
init_completion(&client->tune_done);
kmutex_lock(&g_smsdvb_clientslock);
list_add(&client->entry, &g_smsdvb_clients);
kmutex_unlock(&g_smsdvb_clientslock);
client->event_fe_state = -1;
client->event_unc_state = -1;
sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
sms_info("success");
sms_board_setup(coredev);
return 0;
client_error:
dvb_unregister_frontend(&client->frontend);
frontend_error:
dvb_dmxdev_release(&client->dmxdev);
dmxdev_error:
dvb_dmx_release(&client->demux);
dvbdmx_error:
dvb_unregister_adapter(&client->adapter);
adapter_error:
kfree(client);
return rc;
}
static int __init smsdvb_module_init(void)
{
int rc;
INIT_LIST_HEAD(&g_smsdvb_clients);
kmutex_init(&g_smsdvb_clientslock);
rc = smscore_register_hotplug(smsdvb_hotplug);
sms_debug("");
return rc;
}
static void __exit smsdvb_module_exit(void)
{
smscore_unregister_hotplug(smsdvb_hotplug);
kmutex_lock(&g_smsdvb_clientslock);
while (!list_empty(&g_smsdvb_clients))
smsdvb_unregister_client(
(struct smsdvb_client_t *) g_smsdvb_clients.next);
kmutex_unlock(&g_smsdvb_clientslock);
}
module_init(smsdvb_module_init);
module_exit(smsdvb_module_exit);
MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
MODULE_LICENSE("GPL");
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