debugfs.c

// SPDX-License-Identifier: ISC
/* Copyright (C) 2023 MediaTek Inc. */

#include "mt7925.h"
#include "mcu.h"

static int
mt7925_reg_set(void *data, u64 val)
{
	struct mt792x_dev *dev = data;
	u32 regval = val;

	mt792x_mutex_acquire(dev);
	mt7925_mcu_regval(dev, dev->mt76.debugfs_reg, &regval, true);
	mt792x_mutex_release(dev);

	return 0;
}

static int
mt7925_reg_get(void *data, u64 *val)
{
	struct mt792x_dev *dev = data;
	u32 regval;
	int ret;

	mt792x_mutex_acquire(dev);
	ret = mt7925_mcu_regval(dev, dev->mt76.debugfs_reg, &regval, false);
	mt792x_mutex_release(dev);
	if (!ret)
		*val = regval;

	return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_regval, mt7925_reg_get, mt7925_reg_set,
			 "0x%08llx\n");
static int
mt7925_fw_debug_set(void *data, u64 val)
{
	struct mt792x_dev *dev = data;

	mt792x_mutex_acquire(dev);

	dev->fw_debug = (u8)val;
	mt7925_mcu_fw_log_2_host(dev, dev->fw_debug);

	mt792x_mutex_release(dev);

	return 0;
}

static int
mt7925_fw_debug_get(void *data, u64 *val)
{
	struct mt792x_dev *dev = data;

	*val = dev->fw_debug;

	return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7925_fw_debug_get,
			 mt7925_fw_debug_set, "%lld\n");

DEFINE_SHOW_ATTRIBUTE(mt792x_tx_stats);

static void
mt7925_seq_puts_array(struct seq_file *file, const char *str,
		      s8 val[][2], int len, u8 band_idx)
{
	int i;

	seq_printf(file, "%-22s:", str);
	for (i = 0; i < len; i++)
		if (val[i][band_idx] == 127)
			seq_printf(file, " %6s", "N.A");
		else
			seq_printf(file, " %6d", val[i][band_idx]);
	seq_puts(file, "\n");
}

#define mt7925_print_txpwr_entry(prefix, rate, idx)	\
({							\
	mt7925_seq_puts_array(s, #prefix " (tmac)",	\
			      txpwr->rate,		\
			      ARRAY_SIZE(txpwr->rate),	\
			      idx);			\
})

static inline void
mt7925_eht_txpwr(struct seq_file *s, struct mt7925_txpwr *txpwr, u8 band_idx)
{
	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
		   "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11",
		   "mcs12", "mcs13", "mcs14", "mcs15");
	mt7925_print_txpwr_entry(EHT26, eht26, band_idx);
	mt7925_print_txpwr_entry(EHT52, eht52, band_idx);
	mt7925_print_txpwr_entry(EHT106, eht106, band_idx);
	mt7925_print_txpwr_entry(EHT242, eht242, band_idx);
	mt7925_print_txpwr_entry(EHT484, eht484, band_idx);

	mt7925_print_txpwr_entry(EHT996, eht996, band_idx);
	mt7925_print_txpwr_entry(EHT996x2, eht996x2, band_idx);
	mt7925_print_txpwr_entry(EHT996x4, eht996x4, band_idx);
	mt7925_print_txpwr_entry(EHT26_52, eht26_52, band_idx);
	mt7925_print_txpwr_entry(EHT26_106, eht26_106, band_idx);
	mt7925_print_txpwr_entry(EHT484_242, eht484_242, band_idx);
	mt7925_print_txpwr_entry(EHT996_484, eht996_484, band_idx);
	mt7925_print_txpwr_entry(EHT996_484_242, eht996_484_242, band_idx);
	mt7925_print_txpwr_entry(EHT996x2_484, eht996x2_484, band_idx);
	mt7925_print_txpwr_entry(EHT996x3, eht996x3, band_idx);
	mt7925_print_txpwr_entry(EHT996x3_484, eht996x3_484, band_idx);
}

static int
mt7925_txpwr(struct seq_file *s, void *data)
{
	struct mt792x_dev *dev = dev_get_drvdata(s->private);
	struct mt7925_txpwr *txpwr = NULL;
	u8 band_idx = dev->mphy.band_idx;
	int ret = 0;

	txpwr = devm_kmalloc(dev->mt76.dev, sizeof(*txpwr), GFP_KERNEL);

	if (!txpwr)
		return -ENOMEM;

	mt792x_mutex_acquire(dev);
	ret = mt7925_get_txpwr_info(dev, band_idx, txpwr);
	mt792x_mutex_release(dev);

	if (ret)
		goto out;

	seq_printf(s, "%-22s  %6s %6s %6s %6s\n",
		   " ", "1m", "2m", "5m", "11m");
	mt7925_print_txpwr_entry(CCK, cck, band_idx);

	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s\n",
		   " ", "6m", "9m", "12m", "18m", "24m", "36m",
		   "48m", "54m");
	mt7925_print_txpwr_entry(OFDM, ofdm, band_idx);

	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s\n",
		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
		   "mcs6", "mcs7");
	mt7925_print_txpwr_entry(HT20, ht20, band_idx);

	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
		   "mcs6", "mcs7", "mcs32");
	mt7925_print_txpwr_entry(HT40, ht40, band_idx);

	seq_printf(s, "%-22s  %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",
		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",
		   "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");
	mt7925_print_txpwr_entry(VHT20, vht20, band_idx);
	mt7925_print_txpwr_entry(VHT40, vht40, band_idx);

	mt7925_print_txpwr_entry(VHT80, vht80, band_idx);
	mt7925_print_txpwr_entry(VHT160, vht160, band_idx);

	mt7925_print_txpwr_entry(HE26, he26, band_idx);
	mt7925_print_txpwr_entry(HE52, he52, band_idx);
	mt7925_print_txpwr_entry(HE106, he106, band_idx);
	mt7925_print_txpwr_entry(HE242, he242, band_idx);
	mt7925_print_txpwr_entry(HE484, he484, band_idx);

	mt7925_print_txpwr_entry(HE996, he996, band_idx);
	mt7925_print_txpwr_entry(HE996x2, he996x2, band_idx);

	mt7925_eht_txpwr(s, txpwr, band_idx);

out:
	devm_kfree(dev->mt76.dev, txpwr);
	return ret;
}

static int
mt7925_pm_set(void *data, u64 val)
{
	struct mt792x_dev *dev = data;
	struct mt76_connac_pm *pm = &dev->pm;

	if (mt76_is_usb(&dev->mt76))
		return -EOPNOTSUPP;

	mutex_lock(&dev->mt76.mutex);

	if (val == pm->enable_user)
		goto out;

	if (!pm->enable_user) {
		pm->stats.last_wake_event = jiffies;
		pm->stats.last_doze_event = jiffies;
	}
	/* make sure the chip is awake here and ps_work is scheduled
	 * just at end of the this routine.
	 */
	pm->enable = false;
	mt76_connac_pm_wake(&dev->mphy, pm);

	pm->enable_user = val;
	mt7925_set_runtime_pm(dev);
	mt76_connac_power_save_sched(&dev->mphy, pm);
out:
	mutex_unlock(&dev->mt76.mutex);

	return 0;
}

static int
mt7925_pm_get(void *data, u64 *val)
{
	struct mt792x_dev *dev = data;

	*val = dev->pm.enable_user;

	return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_pm, mt7925_pm_get, mt7925_pm_set, "%lld\n");

static int
mt7925_deep_sleep_set(void *data, u64 val)
{
	struct mt792x_dev *dev = data;
	struct mt76_connac_pm *pm = &dev->pm;
	bool monitor = !!(dev->mphy.hw->conf.flags & IEEE80211_CONF_MONITOR);
	bool enable = !!val;

	if (mt76_is_usb(&dev->mt76))
		return -EOPNOTSUPP;

	mt792x_mutex_acquire(dev);
	if (pm->ds_enable_user == enable)
		goto out;

	pm->ds_enable_user = enable;
	pm->ds_enable = enable && !monitor;
	mt7925_mcu_set_deep_sleep(dev, pm->ds_enable);
out:
	mt792x_mutex_release(dev);

	return 0;
}

static int
mt7925_deep_sleep_get(void *data, u64 *val)
{
	struct mt792x_dev *dev = data;

	*val = dev->pm.ds_enable_user;

	return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_ds, mt7925_deep_sleep_get,
			 mt7925_deep_sleep_set, "%lld\n");

DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt792x_pm_idle_timeout_get,
			 mt792x_pm_idle_timeout_set, "%lld\n");

static int mt7925_chip_reset(void *data, u64 val)
{
	struct mt792x_dev *dev = data;
	int ret = 0;

	switch (val) {
	case 1:
		/* Reset wifisys directly. */
		mt792x_reset(&dev->mt76);
		break;
	default:
		/* Collect the core dump before reset wifisys. */
		mt792x_mutex_acquire(dev);
		ret = mt7925_mcu_chip_config(dev, "assert");
		mt792x_mutex_release(dev);
		break;
	}

	return ret;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7925_chip_reset, "%lld\n");

int mt7925_init_debugfs(struct mt792x_dev *dev)
{
	struct dentry *dir;

	dir = mt76_register_debugfs_fops(&dev->mphy, &fops_regval);
	if (!dir)
		return -ENOMEM;

	if (mt76_is_mmio(&dev->mt76))
		debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
					    dir, mt792x_queues_read);
	else
		debugfs_create_devm_seqfile(dev->mt76.dev, "xmit-queues",
					    dir, mt76_queues_read);

	debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
				    mt792x_queues_acq);
	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
				    mt7925_txpwr);
	debugfs_create_file("tx_stats", 0400, dir, dev, &mt792x_tx_stats_fops);
	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
	debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);
	debugfs_create_file("idle-timeout", 0600, dir, dev,
			    &fops_pm_idle_timeout);
	debugfs_create_file("chip_reset", 0600, dir, dev, &fops_reset);
	debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,
				    mt792x_pm_stats);
	debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);

	return 0;
}