Initial import

1 files changed, 1244 insertions, 0 deletions

diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
new file mode 100644
index 000000000..367b8e77f
--- /dev/null
+++ b/drivers/media/common/siano/smsdvb-main.c
@@ -0,0 +1,1244 @@
+/****************************************************************
+
+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 "smscoreapi.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <asm/div64.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+
+#include "sms-cards.h"
+
+#include "smsdvb.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static struct list_head g_smsdvb_clients;
+static struct mutex g_smsdvb_clientslock;
+
+static u32 sms_to_guard_interval_table[] = {
+	[0] = GUARD_INTERVAL_1_32,
+	[1] = GUARD_INTERVAL_1_16,
+	[2] = GUARD_INTERVAL_1_8,
+	[3] = GUARD_INTERVAL_1_4,
+};
+
+static u32 sms_to_code_rate_table[] = {
+	[0] = FEC_1_2,
+	[1] = FEC_2_3,
+	[2] = FEC_3_4,
+	[3] = FEC_5_6,
+	[4] = FEC_7_8,
+};
+
+
+static u32 sms_to_hierarchy_table[] = {
+	[0] = HIERARCHY_NONE,
+	[1] = HIERARCHY_1,
+	[2] = HIERARCHY_2,
+	[3] = HIERARCHY_4,
+};
+
+static u32 sms_to_modulation_table[] = {
+	[0] = QPSK,
+	[1] = QAM_16,
+	[2] = QAM_64,
+	[3] = DQPSK,
+};
+
+
+/* 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:
+		pr_debug("DVB3_EVENT_INIT\n");
+		sms_board_event(coredev, BOARD_EVENT_BIND);
+		break;
+	case DVB3_EVENT_SLEEP:
+		pr_debug("DVB3_EVENT_SLEEP\n");
+		sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
+		break;
+	case DVB3_EVENT_HOTPLUG:
+		pr_debug("DVB3_EVENT_HOTPLUG\n");
+		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;
+			pr_debug("DVB3_EVENT_FE_LOCK\n");
+			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;
+			pr_debug("DVB3_EVENT_FE_UNLOCK\n");
+			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;
+			pr_debug("DVB3_EVENT_UNC_OK\n");
+			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;
+			pr_debug("DVB3_EVENT_UNC_ERR\n");
+			sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
+		}
+		break;
+
+	default:
+		pr_err("Unknown dvb3 api event\n");
+		break;
+	}
+}
+
+static void smsdvb_stats_not_ready(struct dvb_frontend *fe)
+{
+	struct smsdvb_client_t *client =
+		container_of(fe, struct smsdvb_client_t, frontend);
+	struct smscore_device_t *coredev = client->coredev;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int i, n_layers;
+
+	switch (smscore_get_device_mode(coredev)) {
+	case DEVICE_MODE_ISDBT:
+	case DEVICE_MODE_ISDBT_BDA:
+		n_layers = 4;
+		break;
+	default:
+		n_layers = 1;
+	}
+
+	/* Global stats */
+	c->strength.len = 1;
+	c->cnr.len = 1;
+	c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+	c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+
+	/* Per-layer stats */
+	c->post_bit_error.len = n_layers;
+	c->post_bit_count.len = n_layers;
+	c->block_error.len = n_layers;
+	c->block_count.len = n_layers;
+
+	/*
+	 * Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically
+	 * changed when the stats become available.
+	 */
+	for (i = 0; i < n_layers; i++) {
+		c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
+		c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
+		c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
+		c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
+	}
+}
+
+static inline int sms_to_mode(u32 mode)
+{
+	switch (mode) {
+	case 2:
+		return TRANSMISSION_MODE_2K;
+	case 4:
+		return TRANSMISSION_MODE_4K;
+	case 8:
+		return TRANSMISSION_MODE_8K;
+	}
+	return TRANSMISSION_MODE_AUTO;
+}
+
+static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked)
+{
+	if (is_demod_locked)
+		return FE_HAS_SIGNAL  | FE_HAS_CARRIER | FE_HAS_VITERBI |
+		       FE_HAS_SYNC    | FE_HAS_LOCK;
+
+	if (is_rf_locked)
+		return FE_HAS_SIGNAL | FE_HAS_CARRIER;
+
+	return 0;
+}
+
+static inline u32 sms_to_bw(u32 value)
+{
+	return value * 1000000;
+}
+
+#define convert_from_table(value, table, defval) ({			\
+	u32 __ret;							\
+	if (value < ARRAY_SIZE(table))					\
+		__ret = table[value];					\
+	else								\
+		__ret = defval;						\
+	__ret;								\
+})
+
+#define sms_to_guard_interval(value)					\
+	convert_from_table(value, sms_to_guard_interval_table,		\
+			   GUARD_INTERVAL_AUTO);
+
+#define sms_to_code_rate(value)						\
+	convert_from_table(value, sms_to_code_rate_table,		\
+			   FEC_NONE);
+
+#define sms_to_hierarchy(value)						\
+	convert_from_table(value, sms_to_hierarchy_table,		\
+			   FEC_NONE);
+
+#define sms_to_modulation(value)					\
+	convert_from_table(value, sms_to_modulation_table,		\
+			   FEC_NONE);
+
+static void smsdvb_update_tx_params(struct smsdvb_client_t *client,
+				    struct sms_tx_stats *p)
+{
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	c->frequency = p->frequency;
+	client->fe_status = sms_to_status(p->is_demod_locked, 0);
+	c->bandwidth_hz = sms_to_bw(p->bandwidth);
+	c->transmission_mode = sms_to_mode(p->transmission_mode);
+	c->guard_interval = sms_to_guard_interval(p->guard_interval);
+	c->code_rate_HP = sms_to_code_rate(p->code_rate);
+	c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
+	c->hierarchy = sms_to_hierarchy(p->hierarchy);
+	c->modulation = sms_to_modulation(p->constellation);
+}
+
+static void smsdvb_update_per_slices(struct smsdvb_client_t *client,
+				     struct RECEPTION_STATISTICS_PER_SLICES_S *p)
+{
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	u64 tmp;
+
+	client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
+	c->modulation = sms_to_modulation(p->constellation);
+
+	/* signal Strength, in DBm */
+	c->strength.stat[0].uvalue = p->in_band_power * 1000;
+
+	/* Carrier to noise ratio, in DB */
+	c->cnr.stat[0].svalue = p->snr * 1000;
+
+	/* PER/BER requires demod lock */
+	if (!p->is_demod_locked)
+		return;
+
+	/* TS PER */
+	client->last_per = c->block_error.stat[0].uvalue;
+	c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_error.stat[0].uvalue += p->ets_packets;
+	c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets;
+
+	/* ber */
+	c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_error.stat[0].uvalue += p->ber_error_count;
+	c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
+
+	/* Legacy PER/BER */
+	tmp = p->ets_packets * 65535;
+	if (p->ts_packets + p->ets_packets)
+		do_div(tmp, p->ts_packets + p->ets_packets);
+	client->legacy_per = tmp;
+}
+
+static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
+				    struct sms_stats *p)
+{
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	if (client->prt_dvb_stats)
+		client->prt_dvb_stats(client->debug_data, p);
+
+	client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
+
+	/* Update DVB modulation parameters */
+	c->frequency = p->frequency;
+	client->fe_status = sms_to_status(p->is_demod_locked, 0);
+	c->bandwidth_hz = sms_to_bw(p->bandwidth);
+	c->transmission_mode = sms_to_mode(p->transmission_mode);
+	c->guard_interval = sms_to_guard_interval(p->guard_interval);
+	c->code_rate_HP = sms_to_code_rate(p->code_rate);
+	c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
+	c->hierarchy = sms_to_hierarchy(p->hierarchy);
+	c->modulation = sms_to_modulation(p->constellation);
+
+	/* update reception data */
+	c->lna = p->is_external_lna_on ? 1 : 0;
+
+	/* Carrier to noise ratio, in DB */
+	c->cnr.stat[0].svalue = p->SNR * 1000;
+
+	/* signal Strength, in DBm */
+	c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
+
+	/* PER/BER requires demod lock */
+	if (!p->is_demod_locked)
+		return;
+
+	/* TS PER */
+	client->last_per = c->block_error.stat[0].uvalue;
+	c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_error.stat[0].uvalue += p->error_ts_packets;
+	c->block_count.stat[0].uvalue += p->total_ts_packets;
+
+	/* ber */
+	c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_error.stat[0].uvalue += p->ber_error_count;
+	c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
+
+	/* Legacy PER/BER */
+	client->legacy_ber = p->ber;
+};
+
+static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
+				      struct sms_isdbt_stats *p)
+{
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct sms_isdbt_layer_stats *lr;
+	int i, n_layers;
+
+	if (client->prt_isdb_stats)
+		client->prt_isdb_stats(client->debug_data, p);
+
+	client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
+
+	/*
+	 * Firmware 2.1 seems to report only lock status and
+	 * signal strength. The signal strength indicator is at the
+	 * wrong field.
+	 */
+	if (p->statistics_type == 0) {
+		c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
+		c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+		return;
+	}
+
+	/* Update ISDB-T transmission parameters */
+	c->frequency = p->frequency;
+	c->bandwidth_hz = sms_to_bw(p->bandwidth);
+	c->transmission_mode = sms_to_mode(p->transmission_mode);
+	c->guard_interval = sms_to_guard_interval(p->guard_interval);
+	c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
+	n_layers = p->num_of_layers;
+	if (n_layers < 1)
+		n_layers = 1;
+	if (n_layers > 3)
+		n_layers = 3;
+	c->isdbt_layer_enabled = 0;
+
+	/* update reception data */
+	c->lna = p->is_external_lna_on ? 1 : 0;
+
+	/* Carrier to noise ratio, in DB */
+	c->cnr.stat[0].svalue = p->SNR * 1000;
+
+	/* signal Strength, in DBm */
+	c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
+
+	/* PER/BER and per-layer stats require demod lock */
+	if (!p->is_demod_locked)
+		return;
+
+	client->last_per = c->block_error.stat[0].uvalue;
+
+	/* Clears global counters, as the code below will sum it again */
+	c->block_error.stat[0].uvalue = 0;
+	c->block_count.stat[0].uvalue = 0;
+	c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_error.stat[0].uvalue = 0;
+	c->post_bit_count.stat[0].uvalue = 0;
+	c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+
+	for (i = 0; i < n_layers; i++) {
+		lr = &p->layer_info[i];
+
+		/* Update per-layer transmission parameters */
+		if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
+			c->isdbt_layer_enabled |= 1 << i;
+			c->layer[i].segment_count = lr->number_of_segments;
+		} else {
+			continue;
+		}
+		c->layer[i].modulation = sms_to_modulation(lr->constellation);
+
+		/* TS PER */
+		c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
+		c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
+
+		/* Update global PER counter */
+		c->block_error.stat[0].uvalue += lr->error_ts_packets;
+		c->block_count.stat[0].uvalue += lr->total_ts_packets;
+
+		/* BER */
+		c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
+		c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
+
+		/* Update global BER counter */
+		c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
+		c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
+	}
+}
+
+static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
+					 struct sms_isdbt_stats_ex *p)
+{
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct sms_isdbt_layer_stats *lr;
+	int i, n_layers;
+
+	if (client->prt_isdb_stats_ex)
+		client->prt_isdb_stats_ex(client->debug_data, p);
+
+	/* Update ISDB-T transmission parameters */
+	c->frequency = p->frequency;
+	client->fe_status = sms_to_status(p->is_demod_locked, 0);
+	c->bandwidth_hz = sms_to_bw(p->bandwidth);
+	c->transmission_mode = sms_to_mode(p->transmission_mode);
+	c->guard_interval = sms_to_guard_interval(p->guard_interval);
+	c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
+	n_layers = p->num_of_layers;
+	if (n_layers < 1)
+		n_layers = 1;
+	if (n_layers > 3)
+		n_layers = 3;
+	c->isdbt_layer_enabled = 0;
+
+	/* update reception data */
+	c->lna = p->is_external_lna_on ? 1 : 0;
+
+	/* Carrier to noise ratio, in DB */
+	c->cnr.stat[0].svalue = p->SNR * 1000;
+
+	/* signal Strength, in DBm */
+	c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
+
+	/* PER/BER and per-layer stats require demod lock */
+	if (!p->is_demod_locked)
+		return;
+
+	client->last_per = c->block_error.stat[0].uvalue;
+
+	/* Clears global counters, as the code below will sum it again */
+	c->block_error.stat[0].uvalue = 0;
+	c->block_count.stat[0].uvalue = 0;
+	c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_error.stat[0].uvalue = 0;
+	c->post_bit_count.stat[0].uvalue = 0;
+	c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+	c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+
+	c->post_bit_error.len = n_layers + 1;
+	c->post_bit_count.len = n_layers + 1;
+	c->block_error.len = n_layers + 1;
+	c->block_count.len = n_layers + 1;
+	for (i = 0; i < n_layers; i++) {
+		lr = &p->layer_info[i];
+
+		/* Update per-layer transmission parameters */
+		if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
+			c->isdbt_layer_enabled |= 1 << i;
+			c->layer[i].segment_count = lr->number_of_segments;
+		} else {
+			continue;
+		}
+		c->layer[i].modulation = sms_to_modulation(lr->constellation);
+
+		/* TS PER */
+		c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
+		c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
+
+		/* Update global PER counter */
+		c->block_error.stat[0].uvalue += lr->error_ts_packets;
+		c->block_count.stat[0].uvalue += lr->total_ts_packets;
+
+		/* ber */
+		c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
+		c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
+		c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
+
+		/* Update global ber counter */
+		c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
+		c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
+	}
+}
+
+static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
+{
+	struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
+	struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p)
+			+ cb->offset);
+	void *p = phdr + 1;
+	struct dvb_frontend *fe = &client->frontend;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	bool is_status_update = false;
+
+	switch (phdr->msg_type) {
+	case MSG_SMS_DVBT_BDA_DATA:
+		/*
+		 * Only feed data to dvb demux if are there any feed listening
+		 * to it and if the device has tuned
+		 */
+		if (client->feed_users && client->has_tuned)
+			dvb_dmx_swfilter(&client->demux, p,
+					 cb->size - sizeof(struct sms_msg_hdr));
+		break;
+
+	case MSG_SMS_RF_TUNE_RES:
+	case MSG_SMS_ISDBT_TUNE_RES:
+		complete(&client->tune_done);
+		break;
+
+	case MSG_SMS_SIGNAL_DETECTED_IND:
+		client->fe_status = FE_HAS_SIGNAL  | FE_HAS_CARRIER |
+				    FE_HAS_VITERBI | FE_HAS_SYNC    |
+				    FE_HAS_LOCK;
+
+		is_status_update = true;
+		break;
+
+	case MSG_SMS_NO_SIGNAL_IND:
+		client->fe_status = 0;
+
+		is_status_update = true;
+		break;
+
+	case MSG_SMS_TRANSMISSION_IND:
+		smsdvb_update_tx_params(client, p);
+
+		is_status_update = true;
+		break;
+
+	case MSG_SMS_HO_PER_SLICES_IND:
+		smsdvb_update_per_slices(client, p);
+
+		is_status_update = true;
+		break;
+
+	case MSG_SMS_GET_STATISTICS_RES:
+		switch (smscore_get_device_mode(client->coredev)) {
+		case DEVICE_MODE_ISDBT:
+		case DEVICE_MODE_ISDBT_BDA:
+			smsdvb_update_isdbt_stats(client, p);
+			break;
+		default:
+			/* Skip sms_msg_statistics_info:request_result field */
+			smsdvb_update_dvb_stats(client, p + sizeof(u32));
+		}
+
+		is_status_update = true;
+		break;
+
+	/* Only for ISDB-T */
+	case MSG_SMS_GET_STATISTICS_EX_RES:
+		/* Skip sms_msg_statistics_info:request_result field? */
+		smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32));
+		is_status_update = true;
+		break;
+	default:
+		pr_debug("message not handled\n");
+	}
+	smscore_putbuffer(client->coredev, cb);
+
+	if (is_status_update) {
+		if (client->fe_status & FE_HAS_LOCK) {
+			sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
+			if (client->last_per == c->block_error.stat[0].uvalue)
+				sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
+			else
+				sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR);
+			client->has_tuned = true;
+		} else {
+			smsdvb_stats_not_ready(fe);
+			client->has_tuned = false;
+			sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
+		}
+		complete(&client->stats_done);
+	}
+
+	return 0;
+}
+
+static void smsdvb_media_device_unregister(struct smsdvb_client_t *client)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+	struct smscore_device_t *coredev = client->coredev;
+
+	if (!coredev->media_dev)
+		return;
+	media_device_unregister(coredev->media_dev);
+	kfree(coredev->media_dev);
+	coredev->media_dev = NULL;
+#endif
+}
+
+static void smsdvb_unregister_client(struct smsdvb_client_t *client)
+{
+	/* must be called under clientslock */
+
+	list_del(&client->entry);
+
+	smsdvb_debugfs_release(client);
+	smscore_unregister_client(client->smsclient);
+	dvb_unregister_frontend(&client->frontend);
+	dvb_dmxdev_release(&client->dmxdev);
+	dvb_dmx_release(&client->demux);
+	smsdvb_media_device_unregister(client);
+	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 sms_msg_data pid_msg;
+
+	pr_debug("add pid %d(%x)\n",
+		  feed->pid, feed->pid);
+
+	client->feed_users++;
+
+	pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
+	pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
+	pid_msg.x_msg_header.msg_flags = 0;
+	pid_msg.x_msg_header.msg_type  = MSG_SMS_ADD_PID_FILTER_REQ;
+	pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
+	pid_msg.msg_data[0] = feed->pid;
+
+	return smsclient_sendrequest(client->smsclient,
+				     &pid_msg, sizeof(pid_msg));
+}
+
+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 sms_msg_data pid_msg;
+
+	pr_debug("remove pid %d(%x)\n",
+		  feed->pid, feed->pid);
+
+	client->feed_users--;
+
+	pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
+	pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
+	pid_msg.x_msg_header.msg_flags = 0;
+	pid_msg.x_msg_header.msg_type  = MSG_SMS_REMOVE_PID_FILTER_REQ;
+	pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
+	pid_msg.msg_data[0] = feed->pid;
+
+	return smsclient_sendrequest(client->smsclient,
+				     &pid_msg, sizeof(pid_msg));
+}
+
+static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
+					void *buffer, size_t size,
+					struct completion *completion)
+{
+	int rc;
+
+	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 sms_msg_hdr msg;
+
+	/* Don't request stats too fast */
+	if (client->get_stats_jiffies &&
+	   (!time_after(jiffies, client->get_stats_jiffies)))
+		return 0;
+	client->get_stats_jiffies = jiffies + msecs_to_jiffies(100);
+
+	msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
+	msg.msg_dst_id = HIF_TASK;
+	msg.msg_flags = 0;
+	msg.msg_length = sizeof(msg);
+
+	switch (smscore_get_device_mode(client->coredev)) {
+	case DEVICE_MODE_ISDBT:
+	case DEVICE_MODE_ISDBT_BDA:
+		/*
+		* Check for firmware version, to avoid breaking for old cards
+		*/
+		if (client->coredev->fw_version >= 0x800)
+			msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ;
+		else
+			msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
+		break;
+	default:
+		msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
+	}
+
+	rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
+					 &client->stats_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, SMS_LED_OFF);
+
+	return sms_board_led_feedback(client->coredev,
+				     (client->legacy_ber == 0) ?
+				     SMS_LED_HI : SMS_LED_LO);
+}
+
+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->legacy_ber;
+
+	led_feedback(client);
+
+	return rc;
+}
+
+static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int rc;
+	s32 power = (s32) c->strength.stat[0].uvalue;
+	struct smsdvb_client_t *client;
+
+	client = container_of(fe, struct smsdvb_client_t, frontend);
+
+	rc = smsdvb_send_statistics_request(client);
+
+	if (power < -95)
+		*strength = 0;
+		else if (power > -29)
+			*strength = 65535;
+		else
+			*strength = (power + 95) * 65535 / 66;
+
+	led_feedback(client);
+
+	return rc;
+}
+
+static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int rc;
+	struct smsdvb_client_t *client;
+
+	client = container_of(fe, struct smsdvb_client_t, frontend);
+
+	rc = smsdvb_send_statistics_request(client);
+
+	/* Preferred scale for SNR with legacy API: 0.1 dB */
+	*snr = ((u32)c->cnr.stat[0].svalue) / 100;
+
+	led_feedback(client);
+
+	return rc;
+}
+
+static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	int rc;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct smsdvb_client_t *client;
+
+	client = container_of(fe, struct smsdvb_client_t, frontend);
+
+	rc = smsdvb_send_statistics_request(client);
+
+	*ucblocks = c->block_error.stat[0].uvalue;
+
+	led_feedback(client);
+
+	return rc;
+}
+
+static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
+				    struct dvb_frontend_tune_settings *tune)
+{
+	pr_debug("\n");
+
+	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 sms_msg_hdr	msg;
+		u32		Data[3];
+	} msg;
+
+	int ret;
+
+	client->fe_status = 0;
+	client->event_fe_state = -1;
+	client->event_unc_state = -1;
+	fe->dtv_property_cache.delivery_system = SYS_DVBT;
+
+	msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
+	msg.msg.msg_dst_id = HIF_TASK;
+	msg.msg.msg_flags = 0;
+	msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ;
+	msg.msg.msg_length = sizeof(msg);
+	msg.Data[0] = c->frequency;
+	msg.Data[2] = 12000000;
+
+	pr_debug("%s: freq %d band %d\n", __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);
+	int board_id = smscore_get_board_id(client->coredev);
+	struct sms_board *board = sms_get_board(board_id);
+	enum sms_device_type_st type = board->type;
+	int ret;
+
+	struct {
+		struct sms_msg_hdr	msg;
+		u32		Data[4];
+	} msg;
+
+	fe->dtv_property_cache.delivery_system = SYS_ISDBT;
+
+	msg.msg.msg_src_id  = DVBT_BDA_CONTROL_MSG_ID;
+	msg.msg.msg_dst_id  = HIF_TASK;
+	msg.msg.msg_flags  = 0;
+	msg.msg.msg_type   = MSG_SMS_ISDBT_TUNE_REQ;
+	msg.msg.msg_length = sizeof(msg);
+
+	if (c->isdbt_sb_segment_idx == -1)
+		c->isdbt_sb_segment_idx = 0;
+
+	if (!c->isdbt_layer_enabled)
+		c->isdbt_layer_enabled = 7;
+
+	msg.Data[0] = c->frequency;
+	msg.Data[1] = BW_ISDBT_1SEG;
+	msg.Data[2] = 12000000;
+	msg.Data[3] = c->isdbt_sb_segment_idx;
+
+	if (c->isdbt_partial_reception) {
+		if ((type == SMS_PELE || type == SMS_RIO) &&
+		    c->isdbt_sb_segment_count > 3)
+			msg.Data[1] = BW_ISDBT_13SEG;
+		else if (c->isdbt_sb_segment_count > 1)
+			msg.Data[1] = BW_ISDBT_3SEG;
+	} else if (type == SMS_PELE || type == SMS_RIO)
+		msg.Data[1] = BW_ISDBT_13SEG;
+
+	c->bandwidth_hz = 6000000;
+
+	pr_debug("freq %d segwidth %d segindex %d\n",
+		 c->frequency, c->isdbt_sb_segment_count,
+		 c->isdbt_sb_segment_idx);
+
+	/* 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_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 smscore_device_t *coredev = client->coredev;
+
+	smsdvb_stats_not_ready(fe);
+	c->strength.stat[0].uvalue = 0;
+	c->cnr.stat[0].uvalue = 0;
+
+	client->has_tuned = false;
+
+	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;
+	}
+}
+
+/* Nothing to do here, as stats are automatically updated */
+static int smsdvb_get_frontend(struct dvb_frontend *fe)
+{
+	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)
+		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) {
+		pr_err("dvb_register_adapter() failed %d\n", rc);
+		goto adapter_error;
+	}
+	dvb_register_media_controller(&client->adapter, coredev->media_dev);
+
+	/* 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) {
+		pr_err("dvb_dmx_init failed %d\n", 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) {
+		pr_err("dvb_dmxdev_init failed %d\n", 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) {
+		pr_err("frontend registration failed %d\n", 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) {
+		pr_err("smscore_register_client() failed %d\n", rc);
+		goto client_error;
+	}
+
+	client->coredev = coredev;
+
+	init_completion(&client->tune_done);
+	init_completion(&client->stats_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_board_setup(coredev);
+
+	if (smsdvb_debugfs_create(client) < 0)
+		pr_info("failed to create debugfs node\n");
+
+	dvb_create_media_graph(&client->adapter);
+
+	pr_info("DVB interface registered.\n");
+	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:
+	smsdvb_media_device_unregister(client);
+	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);
+
+	smsdvb_debugfs_register();
+
+	rc = smscore_register_hotplug(smsdvb_hotplug);
+
+	pr_debug("\n");
+
+	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);
+
+	smsdvb_debugfs_unregister();
+
+	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");