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537 lines
17 KiB
537 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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// |
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// Copyright(c) 2013 Mauro Carvalho Chehab |
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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 <linux/debugfs.h> |
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#include <linux/spinlock.h> |
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#include <linux/usb.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 "smsdvb.h" |
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static struct dentry *smsdvb_debugfs_usb_root; |
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struct smsdvb_debugfs { |
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struct kref refcount; |
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spinlock_t lock; |
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char stats_data[PAGE_SIZE]; |
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unsigned stats_count; |
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bool stats_was_read; |
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wait_queue_head_t stats_queue; |
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}; |
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static void smsdvb_print_dvb_stats(struct smsdvb_debugfs *debug_data, |
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struct sms_stats *p) |
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{ |
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int n = 0; |
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char *buf; |
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spin_lock(&debug_data->lock); |
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if (debug_data->stats_count) { |
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spin_unlock(&debug_data->lock); |
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return; |
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} |
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buf = debug_data->stats_data; |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_rf_locked = %d\n", p->is_rf_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_demod_locked = %d\n", p->is_demod_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_external_lna_on = %d\n", p->is_external_lna_on); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"SNR = %d\n", p->SNR); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"ber = %d\n", p->ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"FIB_CRC = %d\n", p->FIB_CRC); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"ts_per = %d\n", p->ts_per); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"MFER = %d\n", p->MFER); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"RSSI = %d\n", p->RSSI); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"in_band_pwr = %d\n", p->in_band_pwr); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"carrier_offset = %d\n", p->carrier_offset); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"modem_state = %d\n", p->modem_state); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"frequency = %d\n", p->frequency); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"bandwidth = %d\n", p->bandwidth); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"transmission_mode = %d\n", p->transmission_mode); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"modem_state = %d\n", p->modem_state); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"guard_interval = %d\n", p->guard_interval); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"code_rate = %d\n", p->code_rate); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"lp_code_rate = %d\n", p->lp_code_rate); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"hierarchy = %d\n", p->hierarchy); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"constellation = %d\n", p->constellation); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"burst_size = %d\n", p->burst_size); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"burst_duration = %d\n", p->burst_duration); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"burst_cycle_time = %d\n", p->burst_cycle_time); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"calc_burst_cycle_time = %d\n", |
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p->calc_burst_cycle_time); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_rows = %d\n", p->num_of_rows); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_padd_cols = %d\n", p->num_of_padd_cols); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_punct_cols = %d\n", p->num_of_punct_cols); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"error_ts_packets = %d\n", p->error_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"total_ts_packets = %d\n", p->total_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_valid_mpe_tlbs = %d\n", p->num_of_valid_mpe_tlbs); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_invalid_mpe_tlbs = %d\n", p->num_of_invalid_mpe_tlbs); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_corrected_mpe_tlbs = %d\n", p->num_of_corrected_mpe_tlbs); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"ber_error_count = %d\n", p->ber_error_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"ber_bit_count = %d\n", p->ber_bit_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"sms_to_host_tx_errors = %d\n", p->sms_to_host_tx_errors); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"pre_ber = %d\n", p->pre_ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"cell_id = %d\n", p->cell_id); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"dvbh_srv_ind_hp = %d\n", p->dvbh_srv_ind_hp); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"dvbh_srv_ind_lp = %d\n", p->dvbh_srv_ind_lp); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_mpe_received = %d\n", p->num_mpe_received); |
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debug_data->stats_count = n; |
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spin_unlock(&debug_data->lock); |
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wake_up(&debug_data->stats_queue); |
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} |
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static void smsdvb_print_isdb_stats(struct smsdvb_debugfs *debug_data, |
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struct sms_isdbt_stats *p) |
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{ |
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int i, n = 0; |
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char *buf; |
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spin_lock(&debug_data->lock); |
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if (debug_data->stats_count) { |
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spin_unlock(&debug_data->lock); |
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return; |
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} |
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buf = debug_data->stats_data; |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"statistics_type = %d\t", p->statistics_type); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"full_size = %d\n", p->full_size); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_rf_locked = %d\t\t", p->is_rf_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_demod_locked = %d\t", p->is_demod_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_external_lna_on = %d\n", p->is_external_lna_on); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"SNR = %d dB\t\t", p->SNR); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"RSSI = %d dBm\t\t", p->RSSI); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"in_band_pwr = %d dBm\n", p->in_band_pwr); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"carrier_offset = %d\t", p->carrier_offset); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"bandwidth = %d\t\t", p->bandwidth); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"frequency = %d Hz\n", p->frequency); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"transmission_mode = %d\t", p->transmission_mode); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"modem_state = %d\t\t", p->modem_state); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"guard_interval = %d\n", p->guard_interval); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"system_type = %d\t\t", p->system_type); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"partial_reception = %d\t", p->partial_reception); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_layers = %d\n", p->num_of_layers); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"sms_to_host_tx_errors = %d\n", p->sms_to_host_tx_errors); |
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for (i = 0; i < 3; i++) { |
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if (p->layer_info[i].number_of_segments < 1 || |
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p->layer_info[i].number_of_segments > 13) |
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continue; |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\nLayer %d\n", i); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tcode_rate = %d\t", |
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p->layer_info[i].code_rate); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "constellation = %d\n", |
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p->layer_info[i].constellation); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tber = %-5d\t", |
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p->layer_info[i].ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\tber_error_count = %-5d\t", |
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p->layer_info[i].ber_error_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "ber_bit_count = %-5d\n", |
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p->layer_info[i].ber_bit_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tpre_ber = %-5d\t", |
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p->layer_info[i].pre_ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tts_per = %-5d\n", |
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p->layer_info[i].ts_per); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\terror_ts_packets = %-5d\t", |
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p->layer_info[i].error_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"total_ts_packets = %-5d\t", |
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p->layer_info[i].total_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "ti_ldepth_i = %d\n", |
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p->layer_info[i].ti_ldepth_i); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\tnumber_of_segments = %d\t", |
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p->layer_info[i].number_of_segments); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "tmcc_errors = %d\n", |
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p->layer_info[i].tmcc_errors); |
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} |
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debug_data->stats_count = n; |
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spin_unlock(&debug_data->lock); |
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wake_up(&debug_data->stats_queue); |
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} |
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static void smsdvb_print_isdb_stats_ex(struct smsdvb_debugfs *debug_data, |
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struct sms_isdbt_stats_ex *p) |
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{ |
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int i, n = 0; |
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char *buf; |
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spin_lock(&debug_data->lock); |
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if (debug_data->stats_count) { |
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spin_unlock(&debug_data->lock); |
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return; |
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} |
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buf = debug_data->stats_data; |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"statistics_type = %d\t", p->statistics_type); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"full_size = %d\n", p->full_size); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_rf_locked = %d\t\t", p->is_rf_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_demod_locked = %d\t", p->is_demod_locked); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"is_external_lna_on = %d\n", p->is_external_lna_on); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"SNR = %d dB\t\t", p->SNR); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"RSSI = %d dBm\t\t", p->RSSI); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"in_band_pwr = %d dBm\n", p->in_band_pwr); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"carrier_offset = %d\t", p->carrier_offset); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"bandwidth = %d\t\t", p->bandwidth); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"frequency = %d Hz\n", p->frequency); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"transmission_mode = %d\t", p->transmission_mode); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"modem_state = %d\t\t", p->modem_state); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"guard_interval = %d\n", p->guard_interval); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"system_type = %d\t\t", p->system_type); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"partial_reception = %d\t", p->partial_reception); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"num_of_layers = %d\n", p->num_of_layers); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "segment_number = %d\t", |
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p->segment_number); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "tune_bw = %d\n", |
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p->tune_bw); |
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for (i = 0; i < 3; i++) { |
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if (p->layer_info[i].number_of_segments < 1 || |
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p->layer_info[i].number_of_segments > 13) |
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continue; |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\nLayer %d\n", i); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tcode_rate = %d\t", |
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p->layer_info[i].code_rate); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "constellation = %d\n", |
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p->layer_info[i].constellation); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tber = %-5d\t", |
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p->layer_info[i].ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\tber_error_count = %-5d\t", |
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p->layer_info[i].ber_error_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "ber_bit_count = %-5d\n", |
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p->layer_info[i].ber_bit_count); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tpre_ber = %-5d\t", |
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p->layer_info[i].pre_ber); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "\tts_per = %-5d\n", |
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p->layer_info[i].ts_per); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\terror_ts_packets = %-5d\t", |
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p->layer_info[i].error_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"total_ts_packets = %-5d\t", |
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p->layer_info[i].total_ts_packets); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "ti_ldepth_i = %d\n", |
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p->layer_info[i].ti_ldepth_i); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, |
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"\tnumber_of_segments = %d\t", |
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p->layer_info[i].number_of_segments); |
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n += scnprintf(&buf[n], PAGE_SIZE - n, "tmcc_errors = %d\n", |
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p->layer_info[i].tmcc_errors); |
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} |
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debug_data->stats_count = n; |
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spin_unlock(&debug_data->lock); |
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wake_up(&debug_data->stats_queue); |
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} |
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static int smsdvb_stats_open(struct inode *inode, struct file *file) |
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{ |
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struct smsdvb_client_t *client = inode->i_private; |
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struct smsdvb_debugfs *debug_data = client->debug_data; |
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kref_get(&debug_data->refcount); |
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spin_lock(&debug_data->lock); |
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debug_data->stats_count = 0; |
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debug_data->stats_was_read = false; |
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spin_unlock(&debug_data->lock); |
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file->private_data = debug_data; |
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return 0; |
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} |
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static void smsdvb_debugfs_data_release(struct kref *ref) |
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{ |
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struct smsdvb_debugfs *debug_data; |
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debug_data = container_of(ref, struct smsdvb_debugfs, refcount); |
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kfree(debug_data); |
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} |
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static int smsdvb_stats_wait_read(struct smsdvb_debugfs *debug_data) |
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{ |
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int rc = 1; |
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spin_lock(&debug_data->lock); |
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if (debug_data->stats_was_read) |
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goto exit; |
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rc = debug_data->stats_count; |
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exit: |
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spin_unlock(&debug_data->lock); |
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return rc; |
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} |
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static __poll_t smsdvb_stats_poll(struct file *file, poll_table *wait) |
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{ |
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struct smsdvb_debugfs *debug_data = file->private_data; |
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int rc; |
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kref_get(&debug_data->refcount); |
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poll_wait(file, &debug_data->stats_queue, wait); |
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rc = smsdvb_stats_wait_read(debug_data); |
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kref_put(&debug_data->refcount, smsdvb_debugfs_data_release); |
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return rc > 0 ? EPOLLIN | EPOLLRDNORM : 0; |
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} |
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static ssize_t smsdvb_stats_read(struct file *file, char __user *user_buf, |
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size_t nbytes, loff_t *ppos) |
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{ |
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int rc = 0, len; |
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struct smsdvb_debugfs *debug_data = file->private_data; |
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kref_get(&debug_data->refcount); |
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if (file->f_flags & O_NONBLOCK) { |
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rc = smsdvb_stats_wait_read(debug_data); |
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if (!rc) { |
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rc = -EWOULDBLOCK; |
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goto ret; |
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} |
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} else { |
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rc = wait_event_interruptible(debug_data->stats_queue, |
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smsdvb_stats_wait_read(debug_data)); |
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if (rc < 0) |
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goto ret; |
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} |
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if (debug_data->stats_was_read) { |
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rc = 0; /* EOF */ |
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goto ret; |
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} |
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len = debug_data->stats_count - *ppos; |
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if (len >= 0) |
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rc = simple_read_from_buffer(user_buf, nbytes, ppos, |
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debug_data->stats_data, len); |
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else |
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rc = 0; |
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if (*ppos >= debug_data->stats_count) { |
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spin_lock(&debug_data->lock); |
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debug_data->stats_was_read = true; |
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spin_unlock(&debug_data->lock); |
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} |
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ret: |
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kref_put(&debug_data->refcount, smsdvb_debugfs_data_release); |
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return rc; |
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} |
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static int smsdvb_stats_release(struct inode *inode, struct file *file) |
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{ |
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struct smsdvb_debugfs *debug_data = file->private_data; |
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spin_lock(&debug_data->lock); |
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debug_data->stats_was_read = true; /* return EOF to read() */ |
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spin_unlock(&debug_data->lock); |
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wake_up_interruptible_sync(&debug_data->stats_queue); |
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kref_put(&debug_data->refcount, smsdvb_debugfs_data_release); |
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file->private_data = NULL; |
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return 0; |
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} |
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static const struct file_operations debugfs_stats_ops = { |
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.open = smsdvb_stats_open, |
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.poll = smsdvb_stats_poll, |
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.read = smsdvb_stats_read, |
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.release = smsdvb_stats_release, |
|
.llseek = generic_file_llseek, |
|
}; |
|
|
|
/* |
|
* Functions used by smsdvb, in order to create the interfaces |
|
*/ |
|
|
|
int smsdvb_debugfs_create(struct smsdvb_client_t *client) |
|
{ |
|
struct smscore_device_t *coredev = client->coredev; |
|
struct dentry *d; |
|
struct smsdvb_debugfs *debug_data; |
|
|
|
if (!smsdvb_debugfs_usb_root || !coredev->is_usb_device) |
|
return -ENODEV; |
|
|
|
client->debugfs = debugfs_create_dir(coredev->devpath, |
|
smsdvb_debugfs_usb_root); |
|
if (IS_ERR_OR_NULL(client->debugfs)) { |
|
pr_info("Unable to create debugfs %s directory.\n", |
|
coredev->devpath); |
|
return -ENODEV; |
|
} |
|
|
|
d = debugfs_create_file("stats", S_IRUGO | S_IWUSR, client->debugfs, |
|
client, &debugfs_stats_ops); |
|
if (!d) { |
|
debugfs_remove(client->debugfs); |
|
return -ENOMEM; |
|
} |
|
|
|
debug_data = kzalloc(sizeof(*client->debug_data), GFP_KERNEL); |
|
if (!debug_data) |
|
return -ENOMEM; |
|
|
|
client->debug_data = debug_data; |
|
client->prt_dvb_stats = smsdvb_print_dvb_stats; |
|
client->prt_isdb_stats = smsdvb_print_isdb_stats; |
|
client->prt_isdb_stats_ex = smsdvb_print_isdb_stats_ex; |
|
|
|
init_waitqueue_head(&debug_data->stats_queue); |
|
spin_lock_init(&debug_data->lock); |
|
kref_init(&debug_data->refcount); |
|
|
|
return 0; |
|
} |
|
|
|
void smsdvb_debugfs_release(struct smsdvb_client_t *client) |
|
{ |
|
if (!client->debugfs) |
|
return; |
|
|
|
client->prt_dvb_stats = NULL; |
|
client->prt_isdb_stats = NULL; |
|
client->prt_isdb_stats_ex = NULL; |
|
|
|
debugfs_remove_recursive(client->debugfs); |
|
kref_put(&client->debug_data->refcount, smsdvb_debugfs_data_release); |
|
|
|
client->debug_data = NULL; |
|
client->debugfs = NULL; |
|
} |
|
|
|
void smsdvb_debugfs_register(void) |
|
{ |
|
struct dentry *d; |
|
|
|
/* |
|
* FIXME: This was written to debug Siano USB devices. So, it creates |
|
* the debugfs node under <debugfs>/usb. |
|
* A similar logic would be needed for Siano sdio devices, but, in that |
|
* case, usb_debug_root is not a good choice. |
|
* |
|
* Perhaps the right fix here would be to create another sysfs root |
|
* node for sdio-based boards, but this may need some logic at sdio |
|
* subsystem. |
|
*/ |
|
d = debugfs_create_dir("smsdvb", usb_debug_root); |
|
if (IS_ERR_OR_NULL(d)) { |
|
pr_err("Couldn't create sysfs node for smsdvb\n"); |
|
return; |
|
} |
|
smsdvb_debugfs_usb_root = d; |
|
} |
|
|
|
void smsdvb_debugfs_unregister(void) |
|
{ |
|
if (!smsdvb_debugfs_usb_root) |
|
return; |
|
debugfs_remove_recursive(smsdvb_debugfs_usb_root); |
|
smsdvb_debugfs_usb_root = NULL; |
|
}
|
|
|