/**************************************************************** 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 . ****************************************************************/ #include "smscoreapi.h" #include #include #include #include #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) { struct smscore_device_t *coredev = client->coredev; #ifdef CONFIG_MEDIA_CONTROLLER_DVB 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; } #ifdef CONFIG_MEDIA_CONTROLLER_DVB client->adapter.mdev = coredev->media_dev; #endif /* 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, ¶ms, &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");