// SPDX-License-Identifier: GPL-2.0-or-later
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/****************************************************************
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Siano Mobile Silicon, Inc.
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MDTV receiver kernel modules.
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Copyright (C) 2006-2008, Uri Shkolnik
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****************************************************************/
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#include "smscoreapi.h"
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <asm/div64.h>
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#include <media/dmxdev.h>
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#include <media/dvbdev.h>
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#include <media/dvb_demux.h>
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#include <media/dvb_frontend.h>
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#include "sms-cards.h"
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#include "smsdvb.h"
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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static struct list_head g_smsdvb_clients;
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static struct mutex g_smsdvb_clientslock;
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static u32 sms_to_guard_interval_table[] = {
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[0] = GUARD_INTERVAL_1_32,
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[1] = GUARD_INTERVAL_1_16,
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[2] = GUARD_INTERVAL_1_8,
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[3] = GUARD_INTERVAL_1_4,
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};
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static u32 sms_to_code_rate_table[] = {
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[0] = FEC_1_2,
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[1] = FEC_2_3,
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[2] = FEC_3_4,
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[3] = FEC_5_6,
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[4] = FEC_7_8,
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};
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static u32 sms_to_hierarchy_table[] = {
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[0] = HIERARCHY_NONE,
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[1] = HIERARCHY_1,
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[2] = HIERARCHY_2,
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[3] = HIERARCHY_4,
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};
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static u32 sms_to_modulation_table[] = {
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[0] = QPSK,
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[1] = QAM_16,
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[2] = QAM_64,
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[3] = DQPSK,
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};
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/* Events that may come from DVB v3 adapter */
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static void sms_board_dvb3_event(struct smsdvb_client_t *client,
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enum SMS_DVB3_EVENTS event) {
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struct smscore_device_t *coredev = client->coredev;
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switch (event) {
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case DVB3_EVENT_INIT:
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pr_debug("DVB3_EVENT_INIT\n");
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sms_board_event(coredev, BOARD_EVENT_BIND);
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break;
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case DVB3_EVENT_SLEEP:
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pr_debug("DVB3_EVENT_SLEEP\n");
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sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
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break;
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case DVB3_EVENT_HOTPLUG:
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pr_debug("DVB3_EVENT_HOTPLUG\n");
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sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
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break;
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case DVB3_EVENT_FE_LOCK:
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if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
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client->event_fe_state = DVB3_EVENT_FE_LOCK;
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pr_debug("DVB3_EVENT_FE_LOCK\n");
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sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
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}
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break;
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case DVB3_EVENT_FE_UNLOCK:
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if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
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client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
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pr_debug("DVB3_EVENT_FE_UNLOCK\n");
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sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
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}
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break;
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case DVB3_EVENT_UNC_OK:
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if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
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client->event_unc_state = DVB3_EVENT_UNC_OK;
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pr_debug("DVB3_EVENT_UNC_OK\n");
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sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
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}
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break;
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case DVB3_EVENT_UNC_ERR:
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if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
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client->event_unc_state = DVB3_EVENT_UNC_ERR;
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pr_debug("DVB3_EVENT_UNC_ERR\n");
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sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
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}
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break;
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default:
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pr_err("Unknown dvb3 api event\n");
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break;
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}
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}
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static void smsdvb_stats_not_ready(struct dvb_frontend *fe)
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{
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struct smsdvb_client_t *client =
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container_of(fe, struct smsdvb_client_t, frontend);
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struct smscore_device_t *coredev = client->coredev;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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int i, n_layers;
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switch (smscore_get_device_mode(coredev)) {
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case DEVICE_MODE_ISDBT:
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case DEVICE_MODE_ISDBT_BDA:
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n_layers = 4;
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break;
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default:
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n_layers = 1;
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}
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/* Global stats */
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c->strength.len = 1;
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c->cnr.len = 1;
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c->strength.stat[0].scale = FE_SCALE_DECIBEL;
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c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
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/* Per-layer stats */
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c->post_bit_error.len = n_layers;
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c->post_bit_count.len = n_layers;
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c->block_error.len = n_layers;
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c->block_count.len = n_layers;
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/*
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* Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically
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* changed when the stats become available.
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*/
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for (i = 0; i < n_layers; i++) {
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c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
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}
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}
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static inline int sms_to_mode(u32 mode)
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{
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switch (mode) {
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case 2:
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return TRANSMISSION_MODE_2K;
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case 4:
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return TRANSMISSION_MODE_4K;
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case 8:
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return TRANSMISSION_MODE_8K;
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}
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return TRANSMISSION_MODE_AUTO;
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}
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static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked)
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{
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if (is_demod_locked)
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return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
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FE_HAS_SYNC | FE_HAS_LOCK;
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if (is_rf_locked)
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return FE_HAS_SIGNAL | FE_HAS_CARRIER;
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return 0;
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}
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static inline u32 sms_to_bw(u32 value)
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{
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return value * 1000000;
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}
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#define convert_from_table(value, table, defval) ({ \
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u32 __ret; \
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if (value < ARRAY_SIZE(table)) \
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__ret = table[value]; \
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else \
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__ret = defval; \
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__ret; \
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})
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#define sms_to_guard_interval(value) \
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convert_from_table(value, sms_to_guard_interval_table, \
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GUARD_INTERVAL_AUTO);
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#define sms_to_code_rate(value) \
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convert_from_table(value, sms_to_code_rate_table, \
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FEC_NONE);
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#define sms_to_hierarchy(value) \
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convert_from_table(value, sms_to_hierarchy_table, \
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FEC_NONE);
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#define sms_to_modulation(value) \
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convert_from_table(value, sms_to_modulation_table, \
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FEC_NONE);
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static void smsdvb_update_tx_params(struct smsdvb_client_t *client,
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struct sms_tx_stats *p)
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{
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struct dvb_frontend *fe = &client->frontend;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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c->frequency = p->frequency;
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client->fe_status = sms_to_status(p->is_demod_locked, 0);
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c->bandwidth_hz = sms_to_bw(p->bandwidth);
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c->transmission_mode = sms_to_mode(p->transmission_mode);
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c->guard_interval = sms_to_guard_interval(p->guard_interval);
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c->code_rate_HP = sms_to_code_rate(p->code_rate);
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c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
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c->hierarchy = sms_to_hierarchy(p->hierarchy);
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c->modulation = sms_to_modulation(p->constellation);
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}
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static void smsdvb_update_per_slices(struct smsdvb_client_t *client,
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struct RECEPTION_STATISTICS_PER_SLICES_S *p)
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{
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struct dvb_frontend *fe = &client->frontend;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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u64 tmp;
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client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
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c->modulation = sms_to_modulation(p->constellation);
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/* signal Strength, in DBm */
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c->strength.stat[0].uvalue = p->in_band_power * 1000;
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/* Carrier to noise ratio, in DB */
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c->cnr.stat[0].svalue = p->snr * 1000;
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/* PER/BER requires demod lock */
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if (!p->is_demod_locked)
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return;
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/* TS PER */
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client->last_per = c->block_error.stat[0].uvalue;
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c->block_error.stat[0].scale = FE_SCALE_COUNTER;
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c->block_count.stat[0].scale = FE_SCALE_COUNTER;
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c->block_error.stat[0].uvalue += p->ets_packets;
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c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets;
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/* ber */
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c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[0].uvalue += p->ber_error_count;
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c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
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/* Legacy PER/BER */
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tmp = p->ets_packets * 65535ULL;
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if (p->ts_packets + p->ets_packets)
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do_div(tmp, p->ts_packets + p->ets_packets);
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client->legacy_per = tmp;
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}
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static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
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struct sms_stats *p)
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{
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struct dvb_frontend *fe = &client->frontend;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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if (client->prt_dvb_stats)
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client->prt_dvb_stats(client->debug_data, p);
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client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
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/* Update DVB modulation parameters */
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c->frequency = p->frequency;
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client->fe_status = sms_to_status(p->is_demod_locked, 0);
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c->bandwidth_hz = sms_to_bw(p->bandwidth);
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c->transmission_mode = sms_to_mode(p->transmission_mode);
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c->guard_interval = sms_to_guard_interval(p->guard_interval);
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c->code_rate_HP = sms_to_code_rate(p->code_rate);
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c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
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c->hierarchy = sms_to_hierarchy(p->hierarchy);
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c->modulation = sms_to_modulation(p->constellation);
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/* update reception data */
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c->lna = p->is_external_lna_on ? 1 : 0;
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/* Carrier to noise ratio, in DB */
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c->cnr.stat[0].svalue = p->SNR * 1000;
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/* signal Strength, in DBm */
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c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
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/* PER/BER requires demod lock */
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if (!p->is_demod_locked)
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return;
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/* TS PER */
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client->last_per = c->block_error.stat[0].uvalue;
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c->block_error.stat[0].scale = FE_SCALE_COUNTER;
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c->block_count.stat[0].scale = FE_SCALE_COUNTER;
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c->block_error.stat[0].uvalue += p->error_ts_packets;
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c->block_count.stat[0].uvalue += p->total_ts_packets;
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/* ber */
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c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[0].uvalue += p->ber_error_count;
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c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
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/* Legacy PER/BER */
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client->legacy_ber = p->ber;
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};
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static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
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struct sms_isdbt_stats *p)
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{
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struct dvb_frontend *fe = &client->frontend;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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struct sms_isdbt_layer_stats *lr;
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int i, n_layers;
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if (client->prt_isdb_stats)
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client->prt_isdb_stats(client->debug_data, p);
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client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
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/*
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* Firmware 2.1 seems to report only lock status and
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* signal strength. The signal strength indicator is at the
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* wrong field.
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*/
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if (p->statistics_type == 0) {
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c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
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c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
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return;
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}
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/* Update ISDB-T transmission parameters */
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c->frequency = p->frequency;
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c->bandwidth_hz = sms_to_bw(p->bandwidth);
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c->transmission_mode = sms_to_mode(p->transmission_mode);
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c->guard_interval = sms_to_guard_interval(p->guard_interval);
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c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
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n_layers = p->num_of_layers;
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if (n_layers < 1)
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n_layers = 1;
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if (n_layers > 3)
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n_layers = 3;
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c->isdbt_layer_enabled = 0;
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/* update reception data */
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c->lna = p->is_external_lna_on ? 1 : 0;
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/* Carrier to noise ratio, in DB */
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c->cnr.stat[0].svalue = p->SNR * 1000;
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/* signal Strength, in DBm */
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c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
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/* PER/BER and per-layer stats require demod lock */
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if (!p->is_demod_locked)
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return;
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client->last_per = c->block_error.stat[0].uvalue;
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/* Clears global counters, as the code below will sum it again */
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c->block_error.stat[0].uvalue = 0;
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c->block_count.stat[0].uvalue = 0;
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c->block_error.stat[0].scale = FE_SCALE_COUNTER;
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c->block_count.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[0].uvalue = 0;
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c->post_bit_count.stat[0].uvalue = 0;
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c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
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for (i = 0; i < n_layers; i++) {
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lr = &p->layer_info[i];
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/* Update per-layer transmission parameters */
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if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
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c->isdbt_layer_enabled |= 1 << i;
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c->layer[i].segment_count = lr->number_of_segments;
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} else {
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continue;
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}
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c->layer[i].modulation = sms_to_modulation(lr->constellation);
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/* TS PER */
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c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
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c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
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/* Update global PER counter */
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c->block_error.stat[0].uvalue += lr->error_ts_packets;
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c->block_count.stat[0].uvalue += lr->total_ts_packets;
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/* BER */
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c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
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c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
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/* Update global BER counter */
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c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
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c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
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}
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}
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static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
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struct sms_isdbt_stats_ex *p)
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{
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struct dvb_frontend *fe = &client->frontend;
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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struct sms_isdbt_layer_stats *lr;
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int i, n_layers;
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if (client->prt_isdb_stats_ex)
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client->prt_isdb_stats_ex(client->debug_data, p);
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/* Update ISDB-T transmission parameters */
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c->frequency = p->frequency;
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client->fe_status = sms_to_status(p->is_demod_locked, 0);
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c->bandwidth_hz = sms_to_bw(p->bandwidth);
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c->transmission_mode = sms_to_mode(p->transmission_mode);
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c->guard_interval = sms_to_guard_interval(p->guard_interval);
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c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
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n_layers = p->num_of_layers;
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if (n_layers < 1)
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n_layers = 1;
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if (n_layers > 3)
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n_layers = 3;
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c->isdbt_layer_enabled = 0;
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/* update reception data */
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c->lna = p->is_external_lna_on ? 1 : 0;
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/* Carrier to noise ratio, in DB */
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c->cnr.stat[0].svalue = p->SNR * 1000;
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/* signal Strength, in DBm */
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c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
|
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/* PER/BER and per-layer stats require demod lock */
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if (!p->is_demod_locked)
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return;
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client->last_per = c->block_error.stat[0].uvalue;
|
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/* Clears global counters, as the code below will sum it again */
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c->block_error.stat[0].uvalue = 0;
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c->block_count.stat[0].uvalue = 0;
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c->block_error.stat[0].scale = FE_SCALE_COUNTER;
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c->block_count.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[0].uvalue = 0;
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c->post_bit_count.stat[0].uvalue = 0;
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c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
|
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c->post_bit_error.len = n_layers + 1;
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c->post_bit_count.len = n_layers + 1;
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c->block_error.len = n_layers + 1;
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c->block_count.len = n_layers + 1;
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for (i = 0; i < n_layers; i++) {
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lr = &p->layer_info[i];
|
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/* Update per-layer transmission parameters */
|
if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
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c->isdbt_layer_enabled |= 1 << i;
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c->layer[i].segment_count = lr->number_of_segments;
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} else {
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continue;
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}
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c->layer[i].modulation = sms_to_modulation(lr->constellation);
|
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/* TS PER */
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c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
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c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
|
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/* Update global PER counter */
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c->block_error.stat[0].uvalue += lr->error_ts_packets;
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c->block_count.stat[0].uvalue += lr->total_ts_packets;
|
|
/* ber */
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c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
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c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
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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;
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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);
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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);
|
media_device_cleanup(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, enum fe_status *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) {
|
enum fe_status 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) {
|
enum fe_status 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;
|
}
|
}
|
|
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 const struct dvb_frontend_ops smsdvb_fe_ops = {
|
.info = {
|
.name = "Siano Mobile Digital MDTV Receiver",
|
.frequency_min_hz = 44250 * kHz,
|
.frequency_max_hz = 867250 * kHz,
|
.frequency_stepsize_hz = 250 * kHz,
|
.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_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, ¶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");
|
|
rc = dvb_create_media_graph(&client->adapter, true);
|
if (rc < 0) {
|
pr_err("dvb_create_media_graph failed %d\n", rc);
|
goto media_graph_error;
|
}
|
|
pr_info("DVB interface registered.\n");
|
return 0;
|
|
media_graph_error:
|
mutex_lock(&g_smsdvb_clientslock);
|
list_del(&client->entry);
|
mutex_unlock(&g_smsdvb_clientslock);
|
|
smsdvb_debugfs_release(client);
|
|
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");
|
