drivers/media/dvb/siano/smsdvb.c - kernel/msm-4.9 - Gitiles

 /*
  *  Driver for the Siano SMS10xx USB dongle
  *
  *  author: Anatoly Greenblat
  *
  *  Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 3 as
  *  published by the Free Software Foundation;
  *
  *  Software distributed under the License is distributed on an "AS IS"
  *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
  *
  *  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, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

 #include <linux/module.h>
 #include <linux/init.h>

 #include "smscoreapi.h"

 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

 struct list_head g_smsdvb_clients;
 kmutex_t g_smsdvb_clientslock;

 int smsdvb_onresponse(void *context, smscore_buffer_t *cb)
 {
 	smsdvb_client_t *client = (smsdvb_client_t *) context;
 	SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)(((u8 *) cb->p) + cb->offset);

 	switch(phdr->msgType)
 	{
 		case MSG_SMS_DVBT_BDA_DATA:
 			dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
 					 cb->size - sizeof(SmsMsgHdr_ST));
 			break;

 		case MSG_SMS_RF_TUNE_RES:
 			complete(&client->tune_done);
 			break;

 		case MSG_SMS_GET_STATISTICS_RES:
 		{
 			SmsMsgStatisticsInfo_ST *p =
 				(SmsMsgStatisticsInfo_ST *)(phdr + 1);

 			if (p->Stat.IsDemodLocked)
 			{
 				client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
 				client->fe_snr = p->Stat.SNR;
 				client->fe_ber = p->Stat.BER;

 				if (p->Stat.InBandPwr < -95)
 					client->fe_signal_strength = 0;
 				else if (p->Stat.InBandPwr > -29)
 					client->fe_signal_strength = 100;
 				else
 					client->fe_signal_strength = (p->Stat.InBandPwr + 95) * 3 / 2;
 			}
 			else
 			{
 				client->fe_status = 0;
 				client->fe_snr =
 				client->fe_ber =
 				client->fe_signal_strength = 0;
 			}

 			complete(&client->stat_done);
 			break;
 		}
 	}

 	smscore_putbuffer(client->coredev, cb);

 	return 0;
 }

 void smsdvb_unregister_client(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);
 }

 void smsdvb_onremove(void *context)
 {
 	kmutex_lock(&g_smsdvb_clientslock);

 	smsdvb_unregister_client((smsdvb_client_t *) context);

 	kmutex_unlock(&g_smsdvb_clientslock);
 }

 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
 {
 	smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux);
 	SmsMsgData_ST PidMsg;

 	printk("%s add pid %d(%x)\n", __func__, 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;

 	return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg));
 }

 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
 {
 	smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux);
 	SmsMsgData_ST PidMsg;

 	printk("%s remove pid %d(%x)\n", __func__, 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;

 	return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg));
 }

 static int smsdvb_sendrequest_and_wait(smsdvb_client_t *client,
 					void *buffer, size_t size,
 					struct completion *completion)
 {
 	int 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(smsdvb_client_t *client)
 {
 	SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ, DVBT_BDA_CONTROL_MSG_ID, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 };
 	return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->stat_done);
 }

 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
 	int rc = smsdvb_send_statistics_request(client);

 	if (!rc)
 		*stat = client->fe_status;

 	return rc;
 }

 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
 	int rc = smsdvb_send_statistics_request(client);

 	if (!rc)
 		*ber = client->fe_ber;

 	return rc;
 }

 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
 	int rc = smsdvb_send_statistics_request(client);

 	if (!rc)
 		*strength = client->fe_signal_strength;

 	return rc;
 }

 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
 	int rc = smsdvb_send_statistics_request(client);

 	if (!rc)
 		*snr = client->fe_snr;

 	return rc;
 }

 static int smsdvb_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune)
 {
 	printk("%s\n", __func__);

 	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)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);

 	struct
 	{
 		SmsMsgHdr_ST	Msg;
 		u32				Data[3];
 	} Msg;

 	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;

 	printk("%s freq %d band %d\n", __func__, 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_5_MHZ: Msg.Data[1] = BW_5_MHZ; break;
 		case BANDWIDTH_AUTO: return -EOPNOTSUPP;
 		default: return -EINVAL;
 	}

 	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)
 {
 	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);

 	printk("%s\n", __func__);

 	// todo:
 	memcpy(fep, &client->fe_params, sizeof(struct dvb_frontend_parameters));
 	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 SMS10xx",
 		.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,
 };

 int smsdvb_hotplug(smscore_device_t *coredev, struct device *device,
 		    int arrival)
 {
 	smsclient_params_t params;
 	smsdvb_client_t *client;
 	int rc;

 	// device removal handled by onremove callback
 	if (!arrival)
 		return 0;

 	if (smscore_get_device_mode(coredev) != 4)
 	{
 		printk(KERN_ERR "%sSMS Device mode is not set for DVB operation.\n", __func__);
 		return 0;
 	}

 	client = kzalloc(sizeof(smsdvb_client_t), GFP_KERNEL);
 	if (!client)
 	{
 		printk(KERN_INFO "%s kmalloc() failed\n", __func__);
 		return -ENOMEM;
 	}

 	// register dvb adapter
 	rc = dvb_register_adapter(&client->adapter, "Siano Digital Receiver", THIS_MODULE, device, adapter_nr);
 	if (rc < 0)
 	{
 		printk("%s dvb_register_adapter() failed %d\n", __func__, 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)
 	{
 		printk("%s dvb_dmx_init failed %d\n\n", __func__, 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)
 	{
 		printk("%s dvb_dmxdev_init failed %d\n", __func__, 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)
 	{
 		printk("%s frontend registration failed %d\n", __func__, 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)
 	{
 		printk(KERN_INFO "%s smscore_register_client() failed %d\n", __func__, rc);
 		goto client_error;
 	}

 	client->coredev = coredev;

 	init_completion(&client->tune_done);
 	init_completion(&client->stat_done);

 	kmutex_lock(&g_smsdvb_clientslock);

 	list_add(&client->entry, &g_smsdvb_clients);

 	kmutex_unlock(&g_smsdvb_clientslock);

 	printk(KERN_INFO "%s success\n", __func__);

 	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;
 }

 int smsdvb_register(void)
 {
 	int rc;

 	INIT_LIST_HEAD(&g_smsdvb_clients);
 	kmutex_init(&g_smsdvb_clientslock);

 	rc = smscore_register_hotplug(smsdvb_hotplug);

 	printk(KERN_INFO "%s\n", __func__);

 	return rc;
 }

 void smsdvb_unregister(void)
 {
 	smscore_unregister_hotplug(smsdvb_hotplug);

 	kmutex_lock(&g_smsdvb_clientslock);

 	while (!list_empty(&g_smsdvb_clients))
 		smsdvb_unregister_client((smsdvb_client_t *) g_smsdvb_clients.next);

 	kmutex_unlock(&g_smsdvb_clientslock);

 }
	/*
	* Driver for the Siano SMS10xx USB dongle
	*
	* author: Anatoly Greenblat
	*
	* Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 3 as
	* published by the Free Software Foundation;
	*
	* Software distributed under the License is distributed on an "AS IS"
	* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
	*
	* 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, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	*/

	#include <linux/module.h>
	#include <linux/init.h>

	#include "smscoreapi.h"

	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

	struct list_head g_smsdvb_clients;
	kmutex_t g_smsdvb_clientslock;

	int smsdvb_onresponse(void context, smscore_buffer_t cb)
	{
	smsdvb_client_t client = (smsdvb_client_t ) context;
	SmsMsgHdr_ST phdr = (SmsMsgHdr_ST )(((u8 *) cb->p) + cb->offset);

	switch(phdr->msgType)
	{
	case MSG_SMS_DVBT_BDA_DATA:
	dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
	cb->size - sizeof(SmsMsgHdr_ST));
	break;

	case MSG_SMS_RF_TUNE_RES:
	complete(&client->tune_done);
	break;

	case MSG_SMS_GET_STATISTICS_RES:
	{
	SmsMsgStatisticsInfo_ST *p =
	(SmsMsgStatisticsInfo_ST *)(phdr + 1);

	if (p->Stat.IsDemodLocked)
	{
	client->fe_status = FE_HAS_SIGNAL \| FE_HAS_CARRIER \| FE_HAS_VITERBI \| FE_HAS_SYNC \| FE_HAS_LOCK;
	client->fe_snr = p->Stat.SNR;
	client->fe_ber = p->Stat.BER;

	if (p->Stat.InBandPwr < -95)
	client->fe_signal_strength = 0;
	else if (p->Stat.InBandPwr > -29)
	client->fe_signal_strength = 100;
	else
	client->fe_signal_strength = (p->Stat.InBandPwr + 95) * 3 / 2;
	}
	else
	{
	client->fe_status = 0;
	client->fe_snr =
	client->fe_ber =
	client->fe_signal_strength = 0;
	}

	complete(&client->stat_done);
	break;
	}
	}

	smscore_putbuffer(client->coredev, cb);

	return 0;
	}

	void smsdvb_unregister_client(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);
	}

	void smsdvb_onremove(void *context)
	{
	kmutex_lock(&g_smsdvb_clientslock);

	smsdvb_unregister_client((smsdvb_client_t *) context);

	kmutex_unlock(&g_smsdvb_clientslock);
	}

	static int smsdvb_start_feed(struct dvb_demux_feed *feed)
	{
	smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux);
	SmsMsgData_ST PidMsg;

	printk("%s add pid %d(%x)\n", __func__, 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;

	return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg));
	}

	static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
	{
	smsdvb_client_t *client = container_of(feed->demux, smsdvb_client_t, demux);
	SmsMsgData_ST PidMsg;

	printk("%s remove pid %d(%x)\n", __func__, 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;

	return smsclient_sendrequest(client->smsclient, &PidMsg, sizeof(PidMsg));
	}

	static int smsdvb_sendrequest_and_wait(smsdvb_client_t *client,
	void *buffer, size_t size,
	struct completion *completion)
	{
	int 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(smsdvb_client_t *client)
	{
	SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ, DVBT_BDA_CONTROL_MSG_ID, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 };
	return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), &client->stat_done);
	}

	static int smsdvb_read_status(struct dvb_frontend fe, fe_status_t stat)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
	int rc = smsdvb_send_statistics_request(client);

	if (!rc)
	*stat = client->fe_status;

	return rc;
	}

	static int smsdvb_read_ber(struct dvb_frontend fe, u32 ber)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
	int rc = smsdvb_send_statistics_request(client);

	if (!rc)
	*ber = client->fe_ber;

	return rc;
	}

	static int smsdvb_read_signal_strength(struct dvb_frontend fe, u16 strength)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
	int rc = smsdvb_send_statistics_request(client);

	if (!rc)
	*strength = client->fe_signal_strength;

	return rc;
	}

	static int smsdvb_read_snr(struct dvb_frontend fe, u16 snr)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);
	int rc = smsdvb_send_statistics_request(client);

	if (!rc)
	*snr = client->fe_snr;

	return rc;
	}

	static int smsdvb_get_tune_settings(struct dvb_frontend fe, struct dvb_frontend_tune_settings tune)
	{
	printk("%s\n", __func__);

	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)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);

	struct
	{
	SmsMsgHdr_ST Msg;
	u32 Data[3];
	} Msg;

	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;

	printk("%s freq %d band %d\n", __func__, 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_5_MHZ: Msg.Data[1] = BW_5_MHZ; break;
	case BANDWIDTH_AUTO: return -EOPNOTSUPP;
	default: return -EINVAL;
	}

	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)
	{
	smsdvb_client_t *client = container_of(fe, smsdvb_client_t, frontend);

	printk("%s\n", __func__);

	// todo:
	memcpy(fep, &client->fe_params, sizeof(struct dvb_frontend_parameters));
	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 SMS10xx",
	.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,
	};

	int smsdvb_hotplug(smscore_device_t coredev, struct device device,
	int arrival)
	{
	smsclient_params_t params;
	smsdvb_client_t *client;
	int rc;

	// device removal handled by onremove callback
	if (!arrival)
	return 0;

	if (smscore_get_device_mode(coredev) != 4)
	{
	printk(KERN_ERR "%sSMS Device mode is not set for DVB operation.\n", __func__);
	return 0;
	}

	client = kzalloc(sizeof(smsdvb_client_t), GFP_KERNEL);
	if (!client)
	{
	printk(KERN_INFO "%s kmalloc() failed\n", __func__);
	return -ENOMEM;
	}

	// register dvb adapter
	rc = dvb_register_adapter(&client->adapter, "Siano Digital Receiver", THIS_MODULE, device, adapter_nr);
	if (rc < 0)
	{
	printk("%s dvb_register_adapter() failed %d\n", __func__, 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)
	{
	printk("%s dvb_dmx_init failed %d\n\n", __func__, 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)
	{
	printk("%s dvb_dmxdev_init failed %d\n", __func__, 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)
	{
	printk("%s frontend registration failed %d\n", __func__, 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)
	{
	printk(KERN_INFO "%s smscore_register_client() failed %d\n", __func__, rc);
	goto client_error;
	}

	client->coredev = coredev;

	init_completion(&client->tune_done);
	init_completion(&client->stat_done);

	kmutex_lock(&g_smsdvb_clientslock);

	list_add(&client->entry, &g_smsdvb_clients);

	kmutex_unlock(&g_smsdvb_clientslock);

	printk(KERN_INFO "%s success\n", __func__);

	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;
	}

	int smsdvb_register(void)
	{
	int rc;

	INIT_LIST_HEAD(&g_smsdvb_clients);
	kmutex_init(&g_smsdvb_clientslock);

	rc = smscore_register_hotplug(smsdvb_hotplug);

	printk(KERN_INFO "%s\n", __func__);

	return rc;
	}

	void smsdvb_unregister(void)
	{
	smscore_unregister_hotplug(smsdvb_hotplug);

	kmutex_lock(&g_smsdvb_clientslock);

	while (!list_empty(&g_smsdvb_clients))
	smsdvb_unregister_client((smsdvb_client_t *) g_smsdvb_clients.next);

	kmutex_unlock(&g_smsdvb_clientslock);

	}