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Diffstat (limited to 'drivers/media/common/siano/smsdvb-main.c')
-rw-r--r--drivers/media/common/siano/smsdvb-main.c1230
1 files changed, 1230 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 00000000000..297f1b2f9a3
--- /dev/null
+++ b/drivers/media/common/siano/smsdvb-main.c
@@ -0,0 +1,1230 @@
+/****************************************************************
+
+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 <asm/div64.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+
+#include "smscoreapi.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 int sms_dbg;
+module_param_named(debug, sms_dbg, int, 0644);
+MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
+
+
+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,
+};
+
+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,
+};
+
+
+u32 sms_to_hierarchy_table[] = {
+ [0] = HIERARCHY_NONE,
+ [1] = HIERARCHY_1,
+ [2] = HIERARCHY_2,
+ [3] = HIERARCHY_4,
+};
+
+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:
+ 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_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;
+ 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;
+ 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:
+ sms_info("message not handled");
+ }
+ 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_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);
+ 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;
+
+ sms_debug("add pid %d(%x)",
+ 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;
+
+ sms_debug("remove pid %d(%x)",
+ 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)
+{
+ 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 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;
+
+ 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);
+ 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;
+
+ sms_info("%s: freq %d segwidth %d segindex %d", __func__,
+ 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) {
+ 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);
+ 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_info("success");
+ sms_board_setup(coredev);
+
+ if (smsdvb_debugfs_create(client) < 0)
+ sms_info("failed to create debugfs node");
+
+ 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);
+
+ smsdvb_debugfs_register();
+
+ 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);
+
+ 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");