path: root/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c

// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
 * Copyright (C) 2022 MediaTek Inc.
 */

#include <linux/relay.h>
#include "mt7996.h"
#include "eeprom.h"
#include "mcu.h"
#include "mac.h"

#define FW_BIN_LOG_MAGIC	0x44d9c99a

/** global debugfs **/

struct hw_queue_map {
	const char *name;
	u8 index;
	u8 pid;
	u8 qid;
};

static int
mt7996_implicit_txbf_set(void *data, u64 val)
{
	struct mt7996_dev *dev = data;

	/* The existing connected stations shall reconnect to apply
	 * new implicit txbf configuration.
	 */
	dev->ibf = !!val;

	return mt7996_mcu_set_txbf(dev, BF_HW_EN_UPDATE);
}

static int
mt7996_implicit_txbf_get(void *data, u64 *val)
{
	struct mt7996_dev *dev = data;

	*val = dev->ibf;

	return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7996_implicit_txbf_get,
			 mt7996_implicit_txbf_set, "%lld\n");

/* test knob of system error recovery */
static ssize_t
mt7996_sys_recovery_set(struct file *file, const char __user *user_buf,
			size_t count, loff_t *ppos)
{
	struct mt7996_dev *dev = file->private_data;
	char buf[16], *sep;
	int ret = 0;
	u16 band, val;

	if (count >= sizeof(buf))
		return -EINVAL;

	if (copy_from_user(buf, user_buf, count))
		return -EFAULT;

	if (count && buf[count - 1] == '\n')
		buf[count - 1] = '\0';
	else
		buf[count] = '\0';

	sep = strchr(buf, ',');
	if (!sep)
		return -EINVAL;

	*sep = 0;
	if (kstrtou16(buf, 0, &band) || kstrtou16(sep + 1, 0, &val))
		return -EINVAL;

	switch (val) {
	/*
	 * <band>,0: grab firmware current SER state.
	 * <band>,1: trigger & enable system error L1 recovery.
	 * <band>,2: trigger & enable system error L2 recovery.
	 * <band>,3: trigger & enable system error L3 rx abort.
	 * <band>,4: trigger & enable system error L3 tx abort
	 * <band>,5: trigger & enable system error L3 tx disable.
	 * <band>,6: trigger & enable system error L3 bf recovery.
	 * <band>,7: trigger & enable system error L4 mdp recovery.
	 * <band>,8: trigger & enable system error full recovery.
	 * <band>,9: trigger firmware crash.
	 */
	case UNI_CMD_SER_QUERY:
		ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_QUERY, 0, band);
		break;
	case UNI_CMD_SER_SET_RECOVER_L1:
	case UNI_CMD_SER_SET_RECOVER_L2:
	case UNI_CMD_SER_SET_RECOVER_L3_RX_ABORT:
	case UNI_CMD_SER_SET_RECOVER_L3_TX_ABORT:
	case UNI_CMD_SER_SET_RECOVER_L3_TX_DISABLE:
	case UNI_CMD_SER_SET_RECOVER_L3_BF:
	case UNI_CMD_SER_SET_RECOVER_L4_MDP:
		ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_SET, BIT(val), band);
		if (ret)
			return ret;

		ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, val, band);
		break;

	/* enable full chip reset */
	case UNI_CMD_SER_SET_RECOVER_FULL:
		mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
		dev->recovery.state |= MT_MCU_CMD_WDT_MASK;
		mt7996_reset(dev);
		break;

	/* WARNING: trigger firmware crash */
	case UNI_CMD_SER_SET_SYSTEM_ASSERT:
		ret = mt7996_mcu_trigger_assert(dev);
		if (ret)
			return ret;
		break;
	default:
		break;
	}

	return ret ? ret : count;
}

static ssize_t
mt7996_sys_recovery_get(struct file *file, char __user *user_buf,
			size_t count, loff_t *ppos)
{
	struct mt7996_dev *dev = file->private_data;
	char *buff;
	int desc =