// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
 */

#include <linux/debugfs.h>
#include "mt76x02.h"

static int
mt76x02_ampdu_stat_show(struct seq_file *file, void *data)
{
        struct mt76x02_dev *dev = file->private;
        int i, j;

        for (i = 0; i < 4; i++) {
                seq_puts(file, "Length: ");
                for (j = 0; j < 8; j++)
                        seq_printf(file, "%8d | ", i * 8 + j + 1);
                seq_puts(file, "\n");
                seq_puts(file, "Count:  ");
                for (j = 0; j < 8; j++)
                        seq_printf(file, "%8d | ",
                                   dev->mphy.aggr_stats[i * 8 + j]);
                seq_puts(file, "\n");
                seq_puts(file, "--------");
                for (j = 0; j < 8; j++)
                        seq_puts(file, "-----------");
                seq_puts(file, "\n");
        }

        return 0;
}

DEFINE_SHOW_ATTRIBUTE(mt76x02_ampdu_stat);

static int read_txpower(struct seq_file *file, void *data)
{
        struct mt76x02_dev *dev = dev_get_drvdata(file->private);

        seq_printf(file, "Target power: %d\n", dev->target_power);

        mt76_seq_puts_array(file, "Delta", dev->target_power_delta,
                            ARRAY_SIZE(dev->target_power_delta));
        return 0;
}

static int
mt76x02_dfs_stat_show(struct seq_file *file, void *data)
{
        struct mt76x02_dev *dev = file->private;
        struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
        int i;

        seq_printf(file, "allocated sequences:\t%d\n",
                   dfs_pd->seq_stats.seq_pool_len);
        seq_printf(file, "used sequences:\t\t%d\n",
                   dfs_pd->seq_stats.seq_len);
        seq_puts(file, "\n");

        for (i = 0; i < MT_DFS_NUM_ENGINES; i++) {
                seq_printf(file, "engine: %d\n", i);
                seq_printf(file, "  hw pattern detected:\t%d\n",
                           dfs_pd->stats[i].hw_pattern);
                seq_printf(file, "  hw pulse discarded:\t%d\n",
                           dfs_pd->stats[i].hw_pulse_discarded);
                seq_printf(file, "  sw pattern detected:\t%d\n",
                           dfs_pd->stats[i].sw_pattern);
        }

        return 0;
}

DEFINE_SHOW_ATTRIBUTE(mt76x02_dfs_stat);

static int read_agc(struct seq_file *file, void *data)
{
        struct mt76x02_dev *dev = dev_get_drvdata(file->private);

        seq_printf(file, "avg_rssi: %d\n", dev->cal.avg_rssi_all);
        seq_printf(file, "low_gain: %d\n", dev->cal.low_gain);
        seq_printf(file, "false_cca: %d\n", dev->cal.false_cca);
        seq_printf(file, "agc_gain_adjust: %d\n", dev->cal.agc_gain_adjust);

        return 0;
}

static int
mt76_edcca_set(void *data, u64 val)
{
        struct mt76x02_dev *dev = data;
        enum nl80211_dfs_regions region = dev->mt76.region;

        mutex_lock(&dev->mt76.mutex);

        dev->ed_monitor_enabled = !!val;
        dev->ed_monitor = dev->ed_monitor_enabled &&
                          region == NL80211_DFS_ETSI;
        mt76x02_edcca_init(dev);

        mutex_unlock(&dev->mt76.mutex);

        return 0;
}

static int
mt76_edcca_get(void *data, u64 *val)
{
        struct mt76x02_dev *dev = data;

        *val = dev->ed_monitor_enabled;
        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt76_edcca_get, mt76_edcca_set,
                         "%lld\n");

static int mt76x02_read_rate_txpower(struct seq_file *s, void *data)
{
        struct mt76x02_dev *dev = dev_get_drvdata(s->private);

        mt76_seq_puts_array(s, "CCK", dev->rate_power.cck,
                            ARRAY_SIZE(dev->rate_power.cck));
        mt76_seq_puts_array(s, "OFDM", dev->rate_power.ofdm,
                            ARRAY_SIZE(dev->rate_power.ofdm));
        mt76_seq_puts_array(s, "HT", dev->rate_power.ht,
                            ARRAY_SIZE(dev->rate_power.ht));
        mt76_seq_puts_array(s, "VHT", dev->rate_power.vht,
                            ARRAY_SIZE(dev->rate_power.vht));
        return 0;
}

void mt76x02_init_debugfs(struct mt76x02_dev *dev)
{
        struct dentry *dir;

        dir = mt76_register_debugfs(&dev->mt76);
        if (!dir)
                return;

        debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues", dir,
                                    mt76_queues_read);
        debugfs_create_u8("temperature", 0400, dir, &dev->cal.temp);
        debugfs_create_bool("tpc", 0600, dir, &dev->enable_tpc);

        debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
        debugfs_create_file("ampdu_stat", 0400, dir, dev, &mt76x02_ampdu_stat_fops);
        debugfs_create_file("dfs_stats", 0400, dir, dev, &mt76x02_dfs_stat_fops);
        debugfs_create_devm_seqfile(dev->mt76.dev, "txpower", dir,
                                    read_txpower);

        debugfs_create_devm_seqfile(dev->mt76.dev, "rate_txpower", dir,
                                    mt76x02_read_rate_txpower);
        debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);

        debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset);
}
EXPORT_SYMBOL_GPL(mt76x02_init_debugfs);