linux/drivers/media/dvb/siano/smsdvb.c
Márton Németh 2184dda0d4 V4L/DVB (13683): sanio-ms: clean up init, exit and id_table
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Make module_init static and mark it with __init.
Make module_exit static and mark it with __exit.
Mark probe functions with __devinit.
Make id table static and mark with __devinitconst.

This will eliminate the following sparse warnings (see "make C=1"):
 * smsdvb.c:668:5: warning: symbol 'smsdvb_module_init' was not declared. Should it be static?
 * smsdvb.c:682:6: warning: symbol 'smsdvb_module_exit' was not declared. Should it be static?
 * smsusb.c:491:22: warning: symbol 'smsusb_id_table' was not declared. Should it be static?
 * smsusb.c:567:5: warning: symbol 'smsusb_module_init' was not declared. Should it be static?
 * smsusb.c:578:6: warning: symbol 'smsusb_module_exit' was not declared. Should it be static?
 * smssdio.c:341:5: warning: symbol 'smssdio_module_init' was not declared. Should it be static?
 * smssdio.c:353:6: warning: symbol 'smssdio_module_exit' was not declared. Should it be static?

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16 09:27:53 -02:00

698 lines
18 KiB
C

/****************************************************************
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/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;
/* todo: save freq/band instead whole struct */
struct dvb_frontend_parameters fe_params;
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 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:
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;
}
}
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 {
/*client->fe_status =
(phdr->msgType == MSG_SMS_NO_SIGNAL_IND) ?
0 : FE_HAS_SIGNAL;*/
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 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)
{
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
*stat = client->fe_status;
led_feedback(client);
return 0;
}
static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
*ber = client->sms_stat_dvb.ReceptionData.BER;
led_feedback(client);
return 0;
}
static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
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 0;
}
static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
*snr = client->sms_stat_dvb.ReceptionData.SNR;
led_feedback(client);
return 0;
}
static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct smsdvb_client_t *client;
client = container_of(fe, struct smsdvb_client_t, frontend);
*ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;
led_feedback(client);
return 0;
}
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_set_frontend(struct dvb_frontend *fe,
struct dvb_frontend_parameters *fep)
{
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;
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] = fep->frequency;
Msg.Data[2] = 12000000;
sms_debug("freq %d band %d",
fep->frequency, fep->u.ofdm.bandwidth);
switch (fep->u.ofdm.bandwidth) {
case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
case BANDWIDTH_AUTO: 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 didnt 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_get_frontend(struct dvb_frontend *fe,
struct dvb_frontend_parameters *fep)
{
struct smsdvb_client_t *client =
container_of(fe, struct smsdvb_client_t, frontend);
sms_debug("");
/* todo: */
memcpy(fep, &client->fe_params,
sizeof(struct dvb_frontend_parameters));
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",
.type = FE_OFDM,
.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;
if (smscore_get_device_mode(coredev) != DEVICE_MODE_DVBT_BDA) {
sms_err("SMS Device mode is not set for "
"DVB operation.");
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));
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");