DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F244D2098A
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From:   <yhchuang@realtek.com>
To:     <kvalo@codeaurora.org>
CC:     <Larry.Finger@lwfinger.net>, <pkshih@realtek.com>,
        <tehuang@realtek.com>, <sgruszka@redhat.com>,
        <linux-wireless@vger.kernel.org>
Subject: [RFC v2 08/12] rtw88: debug files
Date:   Wed, 3 Oct 2018 16:02:24 +0800
Message-ID: <1538553748-26364-9-git-send-email-yhchuang@realtek.com>
In-Reply-To: <1538553748-26364-1-git-send-email-yhchuang@realtek.com>
References: <1538553748-26364-1-git-send-email-yhchuang@realtek.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

From: Yan-Hsuan Chuang <yhchuang@realtek.com>

debug files for Realtek 802.11ac wireless network chips

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
---
 drivers/net/wireless/realtek/rtw88/debug.c | 652 +++++++++++++++++++++++++++++
 drivers/net/wireless/realtek/rtw88/debug.h |  45 ++
 2 files changed, 697 insertions(+)
 create mode 100644 drivers/net/wireless/realtek/rtw88/debug.c
 create mode 100644 drivers/net/wireless/realtek/rtw88/debug.h

diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c
new file mode 100644
index 0000000..e00c602
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/debug.c
@@ -0,0 +1,652 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2018  Realtek Corporation.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "main.h"
+#include "sec.h"
+#include "fw.h"
+#include "debug.h"
+
+#ifdef CONFIG_RTW88_DEBUGFS
+
+struct rtw_debugfs_priv {
+	struct rtw_dev *rtwdev;
+	int (*cb_read)(struct seq_file *m, void *v);
+	ssize_t (*cb_write)(struct file *filp, const char __user *buffer,
+			    size_t count, loff_t *loff);
+	union {
+		u32 cb_data;
+		u8 *buf;
+		struct {
+			u32 page_offset;
+			u32 page_num;
+		} rsvd_page;
+		struct {
+			u8 rf_path;
+			u32 rf_addr;
+			u32 rf_mask;
+		};
+		struct {
+			u32 addr;
+			u32 len;
+		} read_reg;
+	};
+};
+
+static int rtw_debugfs_single_show(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+
+	return debugfs_priv->cb_read(m, v);
+}
+
+static ssize_t rtw_debugfs_common_write(struct file *filp,
+					const char __user *buffer,
+					size_t count, loff_t *loff)
+{
+	struct rtw_debugfs_priv *debugfs_priv = filp->private_data;
+
+	return debugfs_priv->cb_write(filp, buffer, count, loff);
+}
+
+static ssize_t rtw_debugfs_single_write(struct file *filp,
+					const char __user *buffer,
+					size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+
+	return debugfs_priv->cb_write(filp, buffer, count, loff);
+}
+
+static int rtw_debugfs_single_open_rw(struct inode *inode, struct file *filp)
+{
+	return single_open(filp, rtw_debugfs_single_show, inode->i_private);
+}
+
+static int rtw_debugfs_close(struct inode *inode, struct file *filp)
+{
+	return 0;
+}
+
+static const struct file_operations file_ops_single_r = {
+	.owner = THIS_MODULE,
+	.open = rtw_debugfs_single_open_rw,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = seq_release,
+};
+
+static const struct file_operations file_ops_single_rw = {
+	.owner = THIS_MODULE,
+	.open = rtw_debugfs_single_open_rw,
+	.release = single_release,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.write = rtw_debugfs_single_write,
+};
+
+static const struct file_operations file_ops_common_write = {
+	.owner = THIS_MODULE,
+	.write = rtw_debugfs_common_write,
+	.open = simple_open,
+	.release = rtw_debugfs_close,
+};
+
+static int rtw_debugfs_get_read_reg(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 val, len, addr;
+
+	len = debugfs_priv->read_reg.len;
+	addr = debugfs_priv->read_reg.addr;
+	switch (len) {
+	case 1:
+		val = rtw_read8(rtwdev, addr);
+		seq_printf(m, "reg 0x%03x: 0x%02x\n", addr, val);
+		break;
+	case 2:
+		val = rtw_read16(rtwdev, addr);
+		seq_printf(m, "reg 0x%03x: 0x%04x\n", addr, val);
+		break;
+	case 4:
+		val = rtw_read32(rtwdev, addr);
+		seq_printf(m, "reg 0x%03x: 0x%08x\n", addr, val);
+		break;
+	}
+	return 0;
+}
+
+static int rtw_debugfs_get_rf_read(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 val, addr, mask;
+	u8 path;
+
+	path = debugfs_priv->rf_path;
+	addr = debugfs_priv->rf_addr;
+	mask = debugfs_priv->rf_mask;
+
+	val = rtw_read_rf(rtwdev, path, addr, mask);
+
+	seq_printf(m, "rf_read path:%d addr:0x%08x mask:0x%08x val=0x%08x\n",
+		   path, addr, mask, val);
+
+	return 0;
+}
+
+static int rtw_debugfs_copy_from_user(char tmp[], int size,
+				      const char __user *buffer, size_t count,
+				      int num)
+{
+	int tmp_len;
+
+	if (count < num)
+		return -EFAULT;
+
+	tmp_len = (count > size - 1 ? size - 1 : count);
+
+	if (!buffer || copy_from_user(tmp, buffer, tmp_len))
+		return count;
+
+	tmp[tmp_len] = '\0';
+
+	return 0;
+}
+
+static ssize_t rtw_debugfs_set_read_reg(struct file *filp,
+					const char __user *buffer,
+					size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 addr, len;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 2);
+
+	num = sscanf(tmp, "%x %x", &addr, &len);
+
+	if (num !=  2)
+		return count;
+
+	if (len != 1 && len != 2 && len != 4) {
+		rtw_warn(rtwdev, "read reg setting wrong len\n");
+		return -EINVAL;
+	}
+	debugfs_priv->read_reg.addr = addr;
+	debugfs_priv->read_reg.len = len;
+
+	return count;
+}
+
+static int rtw_debugfs_get_dump_cam(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 val, command;
+	u32 hw_key_idx = debugfs_priv->cb_data << RTW_SEC_CAM_ENTRY_SHIFT;
+	u32 read_cmd = RTW_SEC_CMD_POLLING;
+	int i;
+
+	seq_printf(m, "cam entry%d\n", debugfs_priv->cb_data);
+	seq_puts(m, "0x0      0x1      0x2     0x3     ");
+	seq_puts(m, "0x4     0x5\n");
+	mutex_lock(&rtwdev->mutex);
+	for (i = 0; i <= 5; i++) {
+		command = read_cmd | (hw_key_idx + i);
+		rtw_write32(rtwdev, RTW_SEC_CMD_REG, command);
+		val = rtw_read32(rtwdev, RTW_SEC_READ_REG);
+		seq_printf(m, "%8.8x", val);
+		if (i < 2)
+			seq_puts(m, " ");
+	}
+	seq_puts(m, "\n");
+	mutex_unlock(&rtwdev->mutex);
+	return 0;
+}
+
+static int rtw_debugfs_get_rsvd_page(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u8 page_size = rtwdev->chip->page_size;
+	u32 buf_size = debugfs_priv->rsvd_page.page_num * page_size;
+	u32 offset = debugfs_priv->rsvd_page.page_offset * page_size;
+	u8 *buf = vzalloc(buf_size);
+	int i;
+
+	if (rtw_dump_drv_rsvd_page(rtwdev, offset, buf_size, (u32 *)buf)) {
+		vfree(buf);
+		rtw_err(rtwdev, "failed to dump rsvd page\n");
+		return -1;
+	}
+
+	for (i = 0 ; i < buf_size ; i += 8) {
+		if (i % page_size == 0)
+			seq_printf(m, "PAGE %d\n", (i + offset) / page_size);
+		seq_printf(m, "%2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x %2.2x\n",
+			   *(buf + i), *(buf + i + 1),
+			   *(buf + i + 2), *(buf + i + 3),
+			   *(buf + i + 4), *(buf + i + 5),
+			   *(buf + i + 6), *(buf + i + 7));
+	}
+	vfree(buf);
+
+	return 0;
+}
+
+static ssize_t rtw_debugfs_set_rsvd_page(struct file *filp,
+					 const char __user *buffer,
+					 size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 offset, page_num;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 2);
+
+	num = sscanf(tmp, "%d %d", &offset, &page_num);
+
+	if (num != 2) {
+		rtw_warn(rtwdev, "invalid arguments\n");
+		return num;
+	}
+
+	debugfs_priv->rsvd_page.page_offset = offset;
+	debugfs_priv->rsvd_page.page_num = page_num;
+
+	return count;
+}
+
+static ssize_t rtw_debugfs_set_single_input(struct file *filp,
+					    const char __user *buffer,
+					    size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 input;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 1);
+
+	num = kstrtoint(tmp, 0, &input);
+
+	if (num) {
+		rtw_warn(rtwdev, "kstrtoint failed\n");
+		return num;
+	}
+
+	debugfs_priv->cb_data = input;
+
+	return count;
+}
+
+static ssize_t rtw_debugfs_set_write_reg(struct file *filp,
+					 const char __user *buffer,
+					 size_t count, loff_t *loff)
+{
+	struct rtw_debugfs_priv *debugfs_priv = filp->private_data;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 addr, val, len;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 3);
+
+	/* write BB/MAC register */
+	num = sscanf(tmp, "%x %x %x", &addr, &val, &len);
+
+	if (num !=  3)
+		return count;
+
+	switch (len) {
+	case 1:
+		rtw_dbg(rtwdev, "reg write8 0x%03x: 0x%08x\n", addr, val);
+		rtw_write8(rtwdev, addr, (u8)val);
+		break;
+	case 2:
+		rtw_dbg(rtwdev, "reg write16 0x%03x: 0x%08x\n", addr, val);
+		rtw_write16(rtwdev, addr, (u16)val);
+		break;
+	case 4:
+		rtw_dbg(rtwdev, "reg write32 0x%03x: 0x%08x\n", addr, val);
+		rtw_write32(rtwdev, addr, (u32)val);
+		break;
+	default:
+		rtw_dbg(rtwdev, "error write length = %d", len);
+		break;
+	}
+
+	return count;
+}
+
+static ssize_t rtw_debugfs_set_rf_write(struct file *filp,
+					const char __user *buffer,
+					size_t count, loff_t *loff)
+{
+	struct rtw_debugfs_priv *debugfs_priv = filp->private_data;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 path, addr, mask, val;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 4);
+
+	num = sscanf(tmp, "%x %x %x %x", &path, &addr, &mask, &val);
+
+	if (num !=  4) {
+		rtw_warn(rtwdev, "invalid args, [path] [addr] [mask] [val]\n");
+		return count;
+	}
+
+	rtw_write_rf(rtwdev, path, addr, mask, val);
+	rtw_dbg(rtwdev, "write_rf path:%d addr:0x%08x mask:0x%08x, val:0x%08x\n",
+		path, addr, mask, val);
+
+	return count;
+}
+
+static ssize_t rtw_debugfs_set_rf_read(struct file *filp,
+				       const char __user *buffer,
+				       size_t count, loff_t *loff)
+{
+	struct seq_file *seqpriv = (struct seq_file *)filp->private_data;
+	struct rtw_debugfs_priv *debugfs_priv = seqpriv->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	char tmp[32 + 1];
+	u32 path, addr, mask;
+	int num;
+
+	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 3);
+
+	num = sscanf(tmp, "%x %x %x", &path, &addr, &mask);
+
+	if (num !=  3) {
+		rtw_warn(rtwdev, "invalid args, [path] [addr] [mask] [val]\n");
+		return count;
+	}
+
+	debugfs_priv->rf_path = path;
+	debugfs_priv->rf_addr = addr;
+	debugfs_priv->rf_mask = mask;
+
+	return count;
+}
+
+static int rtw_debug_get_mac_page(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 val;
+	u32 page = debugfs_priv->cb_data;
+	int i, n;
+	int max = 0xff;
+
+	val = rtw_read32(rtwdev, debugfs_priv->cb_data);
+	for (n = 0; n <= max; ) {
+		seq_printf(m, "\n%8.8x  ", n + page);
+		for (i = 0; i < 4 && n <= max; i++, n += 4)
+			seq_printf(m, "%8.8x    ",
+				   rtw_read32(rtwdev, (page | n)));
+	}
+	seq_puts(m, "\n");
+	return 0;
+}
+
+static int rtw_debug_get_bb_page(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 val;
+	u32 page = debugfs_priv->cb_data;
+	int i, n;
+	int max = 0xff;
+
+	val = rtw_read32(rtwdev, debugfs_priv->cb_data);
+	for (n = 0; n <= max; ) {
+		seq_printf(m, "\n%8.8x  ", n + page);
+		for (i = 0; i < 4 && n <= max; i++, n += 4)
+			seq_printf(m, "%8.8x    ",
+				   rtw_read32(rtwdev, (page | n)));
+	}
+	seq_puts(m, "\n");
+	return 0;
+}
+
+static int rtw_debug_get_rf_dump(struct seq_file *m, void *v)
+{
+	struct rtw_debugfs_priv *debugfs_priv = m->private;
+	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;
+	u32 addr, offset, data;
+	u8 path;
+
+	for (path = 0; path < rtwdev->hal.rf_path_num; path++) {
+		seq_printf(m, "RF path:%d\n", path);
+		for (addr = 0; addr < 0x100; addr += 4) {
+			seq_printf(m, "%8.8x  ", addr);
+			for (offset = 0; offset < 4; offset++) {
+				data = rtw_read_rf(rtwdev, path, addr + offset,
+						   0xffffffff);
+				seq_printf(m, "%8.8x    ", data);
+			}
+			seq_puts(m, "\n");
+		}
+		seq_puts(m, "\n");
+	}
+
+	return 0;
+}
+
+#define rtw_debug_impl_mac(page, addr)				\
+static struct rtw_debugfs_priv rtw_debug_priv_mac_ ##page = {	\
+	.cb_read = rtw_debug_get_mac_page,			\
+	.cb_data = addr,					\
+}
+
+rtw_debug_impl_mac(0, 0x0000);
+rtw_debug_impl_mac(1, 0x0100);
+rtw_debug_impl_mac(2, 0x0200);
+rtw_debug_impl_mac(3, 0x0300);
+rtw_debug_impl_mac(4, 0x0400);
+rtw_debug_impl_mac(5, 0x0500);
+rtw_debug_impl_mac(6, 0x0600);
+rtw_debug_impl_mac(7, 0x0700);
+rtw_debug_impl_mac(10, 0x1000);
+rtw_debug_impl_mac(11, 0x1100);
+rtw_debug_impl_mac(12, 0x1200);
+rtw_debug_impl_mac(13, 0x1300);
+rtw_debug_impl_mac(14, 0x1400);
+rtw_debug_impl_mac(15, 0x1500);
+rtw_debug_impl_mac(16, 0x1600);
+rtw_debug_impl_mac(17, 0x1700);
+
+#define rtw_debug_impl_bb(page, addr)			\
+static struct rtw_debugfs_priv rtw_debug_priv_bb_ ##page = {	\
+	.cb_read = rtw_debug_get_bb_page,			\
+	.cb_data = addr,					\
+}
+
+rtw_debug_impl_bb(8, 0x0800);
+rtw_debug_impl_bb(9, 0x0900);
+rtw_debug_impl_bb(a, 0x0a00);
+rtw_debug_impl_bb(b, 0x0b00);
+rtw_debug_impl_bb(c, 0x0c00);
+rtw_debug_impl_bb(d, 0x0d00);
+rtw_debug_impl_bb(e, 0x0e00);
+rtw_debug_impl_bb(f, 0x0f00);
+rtw_debug_impl_bb(18, 0x1800);
+rtw_debug_impl_bb(19, 0x1900);
+rtw_debug_impl_bb(1a, 0x1a00);
+rtw_debug_impl_bb(1b, 0x1b00);
+rtw_debug_impl_bb(1c, 0x1c00);
+rtw_debug_impl_bb(1d, 0x1d00);
+rtw_debug_impl_bb(1e, 0x1e00);
+rtw_debug_impl_bb(1f, 0x1f00);
+rtw_debug_impl_bb(2c, 0x2c00);
+rtw_debug_impl_bb(2d, 0x2d00);
+rtw_debug_impl_bb(40, 0x4000);
+rtw_debug_impl_bb(41, 0x4100);
+
+static struct rtw_debugfs_priv rtw_debug_priv_rf_dump = {
+	.cb_read = rtw_debug_get_rf_dump,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_write_reg = {
+	.cb_write = rtw_debugfs_set_write_reg,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_rf_write = {
+	.cb_write = rtw_debugfs_set_rf_write,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_rf_read = {
+	.cb_write = rtw_debugfs_set_rf_read,
+	.cb_read = rtw_debugfs_get_rf_read,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_read_reg = {
+	.cb_write = rtw_debugfs_set_read_reg,
+	.cb_read = rtw_debugfs_get_read_reg,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_dump_cam = {
+	.cb_write = rtw_debugfs_set_single_input,
+	.cb_read = rtw_debugfs_get_dump_cam,
+};
+
+static struct rtw_debugfs_priv rtw_debug_priv_rsvd_page = {
+	.cb_write = rtw_debugfs_set_rsvd_page,
+	.cb_read = rtw_debugfs_get_rsvd_page,
+};
+
+#define rtw_debugfs_add_core(name, mode, fopname, parent)		\
+	do {								\
+		rtw_debug_priv_ ##name.rtwdev = rtwdev;			\
+		if (!debugfs_create_file(#name, mode,			\
+					 parent, &rtw_debug_priv_ ##name,\
+					 &file_ops_ ##fopname))		\
+			pr_debug("Unable to initialize debugfs:%s\n",	\
+			       #name);					\
+	} while (0)
+
+#define rtw_debugfs_add_w(name)						\
+	rtw_debugfs_add_core(name, S_IFREG | 0222, common_write, debugfs_topdir)
+#define rtw_debugfs_add_rw(name)					\
+	rtw_debugfs_add_core(name, S_IFREG | 0666, single_rw, debugfs_topdir)
+#define rtw_debugfs_add_r(name)						\
+	rtw_debugfs_add_core(name, S_IFREG | 0444, single_r, debugfs_topdir)
+
+static struct dentry *debugfs_topdir;
+
+void rtw_debugfs_init(struct rtw_dev *rtwdev)
+{
+	debugfs_topdir = debugfs_create_dir("rtw88", NULL);
+
+	rtw_debugfs_add_w(write_reg);
+	rtw_debugfs_add_rw(read_reg);
+	rtw_debugfs_add_w(rf_write);
+	rtw_debugfs_add_rw(rf_read);
+	rtw_debugfs_add_rw(dump_cam);
+	rtw_debugfs_add_rw(rsvd_page);
+	rtw_debugfs_add_r(mac_0);
+	rtw_debugfs_add_r(mac_1);
+	rtw_debugfs_add_r(mac_2);
+	rtw_debugfs_add_r(mac_3);
+	rtw_debugfs_add_r(mac_4);
+	rtw_debugfs_add_r(mac_5);
+	rtw_debugfs_add_r(mac_6);
+	rtw_debugfs_add_r(mac_7);
+	rtw_debugfs_add_r(bb_8);
+	rtw_debugfs_add_r(bb_9);
+	rtw_debugfs_add_r(bb_a);
+	rtw_debugfs_add_r(bb_b);
+	rtw_debugfs_add_r(bb_c);
+	rtw_debugfs_add_r(bb_d);
+	rtw_debugfs_add_r(bb_e);
+	rtw_debugfs_add_r(bb_f);
+	rtw_debugfs_add_r(mac_10);
+	rtw_debugfs_add_r(mac_11);
+	rtw_debugfs_add_r(mac_12);
+	rtw_debugfs_add_r(mac_13);
+	rtw_debugfs_add_r(mac_14);
+	rtw_debugfs_add_r(mac_15);
+	rtw_debugfs_add_r(mac_16);
+	rtw_debugfs_add_r(mac_17);
+	rtw_debugfs_add_r(bb_18);
+	rtw_debugfs_add_r(bb_19);
+	rtw_debugfs_add_r(bb_1a);
+	rtw_debugfs_add_r(bb_1b);
+	rtw_debugfs_add_r(bb_1c);
+	rtw_debugfs_add_r(bb_1d);
+	rtw_debugfs_add_r(bb_1e);
+	rtw_debugfs_add_r(bb_1f);
+	if (rtwdev->chip->id == RTW_CHIP_TYPE_8822C) {
+		rtw_debugfs_add_r(bb_2c);
+		rtw_debugfs_add_r(bb_2d);
+		rtw_debugfs_add_r(bb_40);
+		rtw_debugfs_add_r(bb_41);
+	}
+	rtw_debugfs_add_r(rf_dump);
+}
+
+void rtw_debugfs_deinit(void)
+{
+	debugfs_remove_recursive(debugfs_topdir);
+	debugfs_topdir = NULL;
+}
+
+#endif /* CONFIG_RTW88_DEBUGFS */
+
+#ifdef CONFIG_RTW88_DEBUG
+
+void __rtw_dbg(struct rtw_dev *rtwdev, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+
+	if (net_ratelimit())
+		dev_dbg(rtwdev->dev, "%pV", &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(__rtw_dbg);
+
+#define __rtw_fn(fn)							\
+void __rtw_ ##fn(struct rtw_dev *rtwdev, const char *fmt, ...)		\
+{									\
+	struct va_format vaf = {					\
+		.fmt = fmt,						\
+	};								\
+	va_list args;							\
+									\
+	va_start(args, fmt);						\
+	vaf.va = &args;							\
+	dev_ ##fn(rtwdev->dev, "%pV", &vaf);				\
+	va_end(args);							\
+}									\
+EXPORT_SYMBOL(__rtw_ ##fn);
+
+__rtw_fn(info)
+__rtw_fn(warn)
+__rtw_fn(err)
+
+#undef __rtw_fn
+
+#endif /* CONFIG_RTW88_DEBUG */
diff --git a/drivers/net/wireless/realtek/rtw88/debug.h b/drivers/net/wireless/realtek/rtw88/debug.h
new file mode 100644
index 0000000..34af500
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw88/debug.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 2018  Realtek Corporation.
+ */
+
+#ifndef __RTW_DEBUG_H
+#define __RTW_DEBUG_H
+
+#ifdef CONFIG_RTW88_DEBUGFS
+
+void rtw_debugfs_init(struct rtw_dev *rtwdev);
+void rtw_debugfs_deinit(void);
+
+#else
+
+static inline void rtw_debugfs_init(struct rtw_dev *rtwdev) {}
+static inline void rtw_debugfs_deinit(void) {}
+
+#endif /* CONFIG_RTW88_DEBUGFS */
+
+#ifdef CONFIG_RTW88_DEBUG
+
+__printf(2, 3)
+void __rtw_dbg(struct rtw_dev *rtwdev, const char *fmt, ...);
+__printf(2, 3)
+void __rtw_info(struct rtw_dev *rtwdev, const char *fmt, ...);
+__printf(2, 3)
+void __rtw_warn(struct rtw_dev *rtwdev, const char *fmt, ...);
+__printf(2, 3)
+void __rtw_err(struct rtw_dev *rtwdev, const char *fmt, ...);
+
+#define rtw_dbg(rtwdev, a...) __rtw_dbg(rtwdev, ##a)
+#define rtw_info(rtwdev, a...) __rtw_info(rtwdev, ##a)
+#define rtw_warn(rtwdev, a...) __rtw_warn(rtwdev, ##a)
+#define rtw_err(rtwdev, a...) __rtw_err(rtwdev, ##a)
+
+#else
+
+static inline void rtw_dbg(struct rtw_dev *rtwdev, const char *fmt, ...) {}
+static inline void rtw_info(struct rtw_dev *rtwdev, const char *fmt, ...) {}
+static inline void rtw_warn(struct rtw_dev *rtwdev, const char *fmt, ...) {}
+static inline void rtw_err(struct rtw_dev *rtwdev, const char *fmt, ...) {}
+
+#endif /* CONFIG_RTW88_DEBUG */
+
+#endif
-- 
2.7.4