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// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell Bluetooth driver: debugfs related functions
*
* Copyright (C) 2009, Marvell International Ltd.
**/
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include "btmrvl_drv.h"
struct btmrvl_debugfs_data {
struct dentry *config_dir;
struct dentry *status_dir;
};
static ssize_t btmrvl_hscfgcmd_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
long result, ret;
ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.hscfgcmd = result;
if (priv->btmrvl_dev.hscfgcmd) {
btmrvl_prepare_command(priv);
wake_up_interruptible(&priv->main_thread.wait_q);
}
return count;
}
static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
char buf[16];
int ret;
ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
priv->btmrvl_dev.hscfgcmd);
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}
static const struct file_operations btmrvl_hscfgcmd_fops = {
.read = btmrvl_hscfgcmd_read,
.write = btmrvl_hscfgcmd_write,
.open = simple_open,
.llseek = default_llseek,
};
static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
long result, ret;
ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.pscmd = result;
if (priv->btmrvl_dev.pscmd) {
btmrvl_prepare_command(priv);
wake_up_interruptible(&priv->main_thread.wait_q);
}
return count;
}
static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
char buf[16];
int ret;
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}
static const struct file_operations btmrvl_pscmd_fops = {
.read = btmrvl_pscmd_read,
.write = btmrvl_pscmd_write,
.open = simple_open,
.llseek = default_llseek,
};
static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
long result, ret;
ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.hscmd = result;
if (priv->btmrvl_dev.hscmd) {
btmrvl_prepare_command(priv);
wake_up_interruptible(&priv->main_thread.wait_q);
}
return count;
}
static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
char buf[16];
int ret;
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}
static const struct file_operations btmrvl_hscmd_fops = {
.read = btmrvl_hscmd_read,
.write = btmrvl_hscmd_write,
.open = simple_open,
.llseek = default_llseek,
};
void btmrvl_debugfs_init(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
struct btmrvl_debugfs_data *dbg;
if (!hdev->debugfs)
return;
dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
priv->debugfs_data = dbg;
if (!dbg) {
BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
return;
}
dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
debugfs_create_u8("psmode", 0644, dbg->config_dir,
&priv->btmrvl_dev.psmode);
debugfs_create_file("pscmd", 0644, dbg->config_dir,
priv, &btmrvl_pscmd_fops);
debugfs_create_x16("gpiogap", 0644, dbg->config_dir,
&priv->btmrvl_dev.gpio_gap);
debugfs_create_u8("hsmode", 0644, dbg->config_dir,
&priv->btmrvl_dev.hsmode);
debugfs_create_file("hscmd", 0644, dbg->config_dir,
priv, &btmrvl_hscmd_fops);
debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
priv, &btmrvl_hscfgcmd_fops);
dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
debugfs_create_u8("curpsmode", 0444, dbg->status_dir,
&priv->adapter->psmode);
debugfs_create_u8("psstate", 0444, dbg->status_dir,
&priv->adapter->ps_state);
debugfs_create_u8("hsstate", 0444, dbg->status_dir,
&priv->adapter->hs_state);
debugfs_create_u8("txdnldready", 0444, dbg->status_dir,
&priv->btmrvl_dev.tx_dnld_rdy);
}
void btmrvl_debugfs_remove(struct hci_dev *hdev)
{
struct btmrvl_private *priv = hci_get_drvdata(hdev);
struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
if (!dbg)
return;
debugfs_remove_recursive(dbg->config_dir);
debugfs_remove_recursive(dbg->status_dir);
kfree(dbg);
}
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