kernel_samsung_a34x-permissive/drivers/input/sec_tsp_log.c

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/*
* sec_tsp_log.c
*
* driver supporting debug functions for Samsung touch device
*
* COPYRIGHT(C) Samsung Electronics Co., Ltd. 2006-2011 All Right Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifdef CONFIG_SEC_DEBUG_TSP_LOG
#include <linux/input/sec_tsp_log.h>
static int sec_tsp_log_index;
static int sec_tsp_log_index_fix;
static char *sec_tsp_log_buf;
static unsigned int sec_tsp_log_size;
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
#define MAIN_TOUCH 0
#define SUB_TOUCH 1
static int sec_tsp_raw_data_index_main;
static int sec_tsp_raw_data_index_sub;
static char *sec_tsp_raw_data_buf;
static unsigned int sec_tsp_raw_data_size;
#else
static int sec_tsp_raw_data_index;
static char *sec_tsp_raw_data_buf;
static unsigned int sec_tsp_raw_data_size;
#endif
static int sec_tsp_command_history_index;
static char *sec_tsp_command_history_buf;
static unsigned int sec_tsp_command_history_size;
static int sec_tsp_log_timestamp(unsigned long idx)
{
/* Add the current time stamp */
char tbuf[50];
unsigned int tlen;
unsigned long long t;
unsigned long nanosec_rem;
t = local_clock();
nanosec_rem = do_div(t, 1000000000);
tlen = snprintf(tbuf, sizeof(tbuf), "[%5lu.%06lu] ",
(unsigned long)t,
nanosec_rem / 1000);
/* Overflow buffer size */
if (idx + tlen > sec_tsp_log_size - 1) {
if (sec_tsp_log_index_fix + tlen > sec_tsp_log_size - 1)
return sec_tsp_log_index;
tlen = scnprintf(&sec_tsp_log_buf[sec_tsp_log_index_fix],
tlen + 1, "%s", tbuf);
sec_tsp_log_index = sec_tsp_log_index_fix + tlen;
} else {
tlen = scnprintf(&sec_tsp_log_buf[idx], tlen + 1, "%s", tbuf);
sec_tsp_log_index += tlen;
}
return sec_tsp_log_index;
}
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
static int sec_tsp_raw_data_timestamp(char mode, unsigned long idx)
{
/* Add the current time stamp */
char tbuf[50];
unsigned int tlen;
unsigned long long t;
unsigned long nanosec_rem;
t = local_clock();
nanosec_rem = do_div(t, 1000000000);
tlen = snprintf(tbuf, sizeof(tbuf), "[%5lu.%06lu] ",
(unsigned long)t,
nanosec_rem / 1000);
if (mode == MAIN_TOUCH) {
/* Overflow buffer size */
if (idx + tlen > (sec_tsp_raw_data_size / 2) - 1) {
tlen = scnprintf(&sec_tsp_raw_data_buf[0],
tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index_main = tlen;
} else {
tlen = scnprintf(&sec_tsp_raw_data_buf[idx], tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index_main += tlen;
}
return sec_tsp_raw_data_index_main;
} else if (mode == SUB_TOUCH) {
/* Overflow buffer size */
if (idx + tlen > sec_tsp_raw_data_size - 1) {
tlen = scnprintf(&sec_tsp_raw_data_buf[sec_tsp_raw_data_size / 2],
tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index_sub = sec_tsp_raw_data_size / 2 + tlen;
} else {
tlen = scnprintf(&sec_tsp_raw_data_buf[idx], tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index_sub += tlen;
}
return sec_tsp_raw_data_index_sub;
}
pr_info("[sec_input] %s error param\n", __func__);
return 0;
}
#else
static int sec_tsp_raw_data_timestamp(unsigned long idx)
{
/* Add the current time stamp */
char tbuf[50];
unsigned int tlen;
unsigned long long t;
unsigned long nanosec_rem;
t = local_clock();
nanosec_rem = do_div(t, 1000000000);
tlen = snprintf(tbuf, sizeof(tbuf), "[%5lu.%06lu] ",
(unsigned long)t,
nanosec_rem / 1000);
/* Overflow buffer size */
if (idx + tlen > sec_tsp_raw_data_size - 1) {
tlen = scnprintf(&sec_tsp_raw_data_buf[0],
tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index = tlen;
} else {
tlen = scnprintf(&sec_tsp_raw_data_buf[idx], tlen + 1, "%s", tbuf);
sec_tsp_raw_data_index += tlen;
}
return sec_tsp_raw_data_index;
}
#endif
#define TSP_BUF_SIZE 512
void sec_debug_tsp_log(char *fmt, ...)
{
va_list args;
char buf[TSP_BUF_SIZE];
int len = 0;
unsigned int idx;
unsigned long size;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_log_size)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
idx = sec_tsp_log_index;
size = strlen(buf);
idx = sec_tsp_log_timestamp(idx);
/* Overflow buffer size */
if (idx + size > sec_tsp_log_size - 1) {
if (sec_tsp_log_index_fix + size > sec_tsp_log_size - 1)
return;
len = scnprintf(&sec_tsp_log_buf[sec_tsp_log_index_fix],
size + 1, "%s\n", buf);
sec_tsp_log_index = sec_tsp_log_index_fix + len;
} else {
len = scnprintf(&sec_tsp_log_buf[idx], size + 1, "%s\n", buf);
sec_tsp_log_index += len;
}
}
EXPORT_SYMBOL(sec_debug_tsp_log);
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
void sec_debug_tsp_raw_data(char *fmt, ...)
{
}
EXPORT_SYMBOL(sec_debug_tsp_raw_data);
#else
void sec_debug_tsp_raw_data(char *fmt, ...)
{
va_list args;
char buf[TSP_BUF_SIZE];
int len = 0;
unsigned int idx;
unsigned long size;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_raw_data_size || !sec_tsp_raw_data_buf)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
idx = sec_tsp_raw_data_index;
size = strlen(buf);
idx = sec_tsp_raw_data_timestamp(idx);
/* Overflow buffer size */
if (idx + size > sec_tsp_raw_data_size - 1) {
len = scnprintf(&sec_tsp_raw_data_buf[0],
size + 1, "%s\n", buf);
sec_tsp_raw_data_index = len;
} else {
len = scnprintf(&sec_tsp_raw_data_buf[idx], size + 1, "%s\n", buf);
sec_tsp_raw_data_index += len;
}
}
EXPORT_SYMBOL(sec_debug_tsp_raw_data);
#endif
void sec_debug_tsp_log_msg(char *msg, char *fmt, ...)
{
va_list args;
char buf[TSP_BUF_SIZE];
int len = 0;
unsigned int idx;
size_t size;
size_t size_dev_name;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_log_size)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
idx = sec_tsp_log_index;
size = strlen(buf);
size_dev_name = strlen(msg);
idx = sec_tsp_log_timestamp(idx);
/* Overflow buffer size */
if (idx + size + size_dev_name + 3 + 1 > sec_tsp_log_size) {
if (sec_tsp_log_index_fix + size + size_dev_name
> sec_tsp_log_size - 1)
return;
len = scnprintf(&sec_tsp_log_buf[sec_tsp_log_index_fix],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_log_index = sec_tsp_log_index_fix + len;
} else {
len = scnprintf(&sec_tsp_log_buf[idx],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_log_index += len;
}
}
EXPORT_SYMBOL(sec_debug_tsp_log_msg);
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
void sec_debug_tsp_raw_data_msg(char mode, char *msg, char *fmt, ...)
{
va_list args;
char buf[TSP_BUF_SIZE];
int len = 0;
unsigned int idx;
size_t size;
size_t size_dev_name;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_raw_data_size || !sec_tsp_raw_data_buf)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
if (mode == MAIN_TOUCH)
idx = sec_tsp_raw_data_index_main;
else if (mode == SUB_TOUCH)
idx = sec_tsp_raw_data_index_sub;
size = strlen(buf);
size_dev_name = strlen(msg);
idx = sec_tsp_raw_data_timestamp(mode, idx);
if (mode == MAIN_TOUCH) {
/* Overflow buffer size */
if (idx + size + size_dev_name + 3 + 1 > (sec_tsp_raw_data_size / 2)) {
len = scnprintf(&sec_tsp_raw_data_buf[0],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index_main = len;
} else {
len = scnprintf(&sec_tsp_raw_data_buf[idx],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index_main += len;
}
} else if (mode == SUB_TOUCH) {
/* Overflow buffer size */
if (idx + size + size_dev_name + 3 + 1 > sec_tsp_raw_data_size) {
len = scnprintf(&sec_tsp_raw_data_buf[sec_tsp_raw_data_size / 2],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index_sub = sec_tsp_raw_data_size / 2 + len;
} else {
len = scnprintf(&sec_tsp_raw_data_buf[idx],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index_sub += len;
}
}
}
EXPORT_SYMBOL(sec_debug_tsp_raw_data_msg);
#else
void sec_debug_tsp_raw_data_msg(char *msg, char *fmt, ...)
{
va_list args;
char buf[TSP_BUF_SIZE];
int len = 0;
unsigned int idx;
size_t size;
size_t size_dev_name;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_raw_data_size || !sec_tsp_raw_data_buf)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
idx = sec_tsp_raw_data_index;
size = strlen(buf);
size_dev_name = strlen(msg);
idx = sec_tsp_raw_data_timestamp(idx);
/* Overflow buffer size */
if (idx + size + size_dev_name + 3 + 1 > sec_tsp_raw_data_size) {
len = scnprintf(&sec_tsp_raw_data_buf[0],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index = len;
} else {
len = scnprintf(&sec_tsp_raw_data_buf[idx],
size + size_dev_name + 3 + 1, "%s : %s", msg, buf);
sec_tsp_raw_data_index += len;
}
}
EXPORT_SYMBOL(sec_debug_tsp_raw_data_msg);
#endif
void sec_debug_tsp_command_history(char *buf)
{
int len = 0;
unsigned int idx;
size_t size;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_command_history_size || !sec_tsp_command_history_buf)
return;
idx = sec_tsp_command_history_index;
size = strlen(buf);
/* Overflow buffer size */
if (idx + size + 1 > sec_tsp_command_history_size) {
len = scnprintf(&sec_tsp_command_history_buf[0],
size + 1, "%s ", buf);
sec_tsp_command_history_index = len;
} else {
len = scnprintf(&sec_tsp_command_history_buf[idx],
size + 1, "%s ", buf);
sec_tsp_command_history_index += len;
}
}
EXPORT_SYMBOL(sec_debug_tsp_command_history);
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
void sec_tsp_raw_data_clear(char mode)
{
if (!sec_tsp_raw_data_size || !sec_tsp_raw_data_buf)
return;
if (mode == MAIN_TOUCH) {
sec_tsp_raw_data_index_main = 0;
memset(sec_tsp_raw_data_buf, 0x00, sec_tsp_raw_data_size / 2);
} else if (mode == SUB_TOUCH) {
sec_tsp_raw_data_index_sub = sec_tsp_raw_data_size / 2;
memset(sec_tsp_raw_data_buf + sec_tsp_raw_data_index_sub, 0x00, sec_tsp_raw_data_size / 2);
}
}
EXPORT_SYMBOL(sec_tsp_raw_data_clear);
#else
void sec_tsp_raw_data_clear(void)
{
if (!sec_tsp_raw_data_size || !sec_tsp_raw_data_buf)
return;
sec_tsp_raw_data_index = 0;
memset(sec_tsp_raw_data_buf, 0x00, sec_tsp_raw_data_size);
}
EXPORT_SYMBOL(sec_tsp_raw_data_clear);
#endif
void sec_tsp_log_fix(void)
{
char *buf = "FIX LOG!\n";
int len = 0;
unsigned int idx;
size_t size;
/* In case of sec_tsp_log_setup is failed */
if (!sec_tsp_log_size)
return;
idx = sec_tsp_log_index;
size = strlen(buf);
idx = sec_tsp_log_timestamp(idx);
/* Overflow buffer size */
if (idx + size > sec_tsp_log_size - 1) {
if (sec_tsp_log_index_fix + size > sec_tsp_log_size - 1)
return;
len = scnprintf(&sec_tsp_log_buf[sec_tsp_log_index_fix],
size + 1, "%s", buf);
sec_tsp_log_index = sec_tsp_log_index_fix + len;
} else {
len = scnprintf(&sec_tsp_log_buf[idx], size + 1, "%s", buf);
sec_tsp_log_index += len;
}
sec_tsp_log_index_fix = sec_tsp_log_index;
}
EXPORT_SYMBOL(sec_tsp_log_fix);
static ssize_t sec_tsp_log_write(struct file *file,
const char __user *buf,
size_t count, loff_t *ppos)
{
char *page = NULL;
ssize_t ret;
int new_value;
if (!sec_tsp_log_buf)
return 0;
ret = -EINVAL;
if (count >= PAGE_SIZE)
return ret;
ret = -ENOMEM;
page = (char *)get_zeroed_page(GFP_KERNEL);
if (!page)
return ret;
ret = -EFAULT;
if (copy_from_user(page, buf, count))
goto out;
ret = -EINVAL;
if (sscanf(page, "%u", &new_value) != 1) {
pr_info("%s\n", page);
/* print tsp_log to sec_tsp_log_buf */
sec_debug_tsp_log("%s", page);
}
ret = count;
out:
free_page((unsigned long)page);
return ret;
}
static ssize_t sec_tsp_raw_data_write(struct file *file,
const char __user *buf,
size_t count, loff_t *ppos)
{
char *page = NULL;
ssize_t ret;
int new_value;
if (!sec_tsp_raw_data_buf)
return 0;
ret = -EINVAL;
if (count >= PAGE_SIZE)
return ret;
ret = -ENOMEM;
page = (char *)get_zeroed_page(GFP_KERNEL);
if (!page)
return ret;
ret = -EFAULT;
if (copy_from_user(page, buf, count))
goto out;
ret = -EINVAL;
if (sscanf(page, "%u", &new_value) != 1) {
pr_info("%s\n", page);
sec_debug_tsp_raw_data("%s", page);
}
ret = count;
out:
free_page((unsigned long)page);
return ret;
}
static ssize_t sec_tsp_log_read(struct file *file, char __user *buf,
size_t len, loff_t *offset)
{
loff_t pos = *offset;
ssize_t count;
if (!sec_tsp_log_buf)
return 0;
if (pos >= sec_tsp_log_index)
return 0;
count = min(len, (size_t)(sec_tsp_log_index - pos));
if (copy_to_user(buf, sec_tsp_log_buf + pos, count))
return -EFAULT;
*offset += count;
return count;
}
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
static ssize_t sec_tsp_raw_data_read(struct file *file, char __user *buf,
size_t len, loff_t *offset)
{
loff_t pos = *offset;
ssize_t count;
int pos_range;
if (!sec_tsp_raw_data_buf)
return 0;
pos_range = sec_tsp_raw_data_index_main + (sec_tsp_raw_data_index_sub - (sec_tsp_raw_data_size / 2));
if (pos_range < 0)
return 0;
if (pos >= pos_range)
return 0;
if (pos < sec_tsp_raw_data_index_main) {
count = min(len, (size_t)(sec_tsp_raw_data_index_main - pos));
if (copy_to_user(buf, sec_tsp_raw_data_buf + pos, count))
return -EFAULT;
} else {
count = min(len, (size_t)(sec_tsp_raw_data_index_sub - (sec_tsp_raw_data_size / 2)
- (pos - sec_tsp_raw_data_index_main)));
if (copy_to_user(buf, &sec_tsp_raw_data_buf[sec_tsp_raw_data_size / 2] + (pos - sec_tsp_raw_data_index_main), count))
return -EFAULT;
}
*offset += count;
return count;
}
#else
static ssize_t sec_tsp_raw_data_read(struct file *file, char __user *buf,
size_t len, loff_t *offset)
{
loff_t pos = *offset;
ssize_t count;
if (!sec_tsp_raw_data_buf)
return 0;
if (pos >= sec_tsp_raw_data_index)
return 0;
count = min(len, (size_t)(sec_tsp_raw_data_index - pos));
if (copy_to_user(buf, sec_tsp_raw_data_buf + pos, count))
return -EFAULT;
*offset += count;
return count;
}
#endif
static ssize_t sec_tsp_command_history_read(struct file *file, char __user *buf,
size_t len, loff_t *offset)
{
loff_t pos = *offset;
ssize_t count;
if (!sec_tsp_command_history_buf)
return 0;
if (pos >= sec_tsp_command_history_index)
return 0;
count = min(len, (size_t)(sec_tsp_command_history_index - pos));
if (copy_to_user(buf, sec_tsp_command_history_buf + pos, count))
return -EFAULT;
*offset += count;
return count;
}
static const struct file_operations tsp_msg_file_ops = {
.owner = THIS_MODULE,
.read = sec_tsp_log_read,
.write = sec_tsp_log_write,
.llseek = generic_file_llseek,
};
static const struct file_operations tsp_raw_data_file_ops = {
.owner = THIS_MODULE,
.read = sec_tsp_raw_data_read,
.write = sec_tsp_raw_data_write,
.llseek = generic_file_llseek,
};
static const struct file_operations tsp_command_history_file_ops = {
.owner = THIS_MODULE,
.read = sec_tsp_command_history_read,
.llseek = generic_file_llseek,
};
static int __init sec_tsp_log_late_init(void)
{
struct proc_dir_entry *entry;
if (!sec_tsp_log_buf)
return 0;
entry = proc_create("tsp_msg", S_IFREG | S_IRUSR | S_IRGRP,
NULL, &tsp_msg_file_ops);
if (!entry) {
pr_err("%s: failed to create proc entry of tsp_msg\n", __func__);
return 0;
}
proc_set_size(entry, sec_tsp_log_size);
return 0;
}
late_initcall(sec_tsp_log_late_init);
static int __init sec_tsp_raw_data_late_init(void)
{
struct proc_dir_entry *entry;
if (!sec_tsp_raw_data_buf)
return 0;
entry = proc_create("tsp_raw_data", S_IFREG | 0444,
NULL, &tsp_raw_data_file_ops);
if (!entry) {
pr_err("%s: failed to create proc entry of tsp_raw_data\n", __func__);
return 0;
}
proc_set_size(entry, sec_tsp_raw_data_size);
return 0;
}
late_initcall(sec_tsp_raw_data_late_init);
static int __init sec_tsp_command_history_late_init(void)
{
struct proc_dir_entry *entry;
if (!sec_tsp_command_history_buf)
return 0;
entry = proc_create("tsp_cmd_hist", S_IFREG | 0444,
NULL, &tsp_command_history_file_ops);
if (!entry) {
pr_err("%s: failed to create proc entry of tsp_command_history\n", __func__);
return 0;
}
proc_set_size(entry, sec_tsp_command_history_size);
return 0;
}
late_initcall(sec_tsp_command_history_late_init);
static int __init __init_sec_tsp_log(void)
{
char *vaddr;
sec_tsp_log_size = SEC_TSP_LOG_BUF_SIZE;
vaddr = kmalloc(sec_tsp_log_size, GFP_KERNEL);
if (!vaddr) {
pr_info("%s: ERROR! init failed!\n", __func__);
return -ENOMEM;
}
sec_tsp_log_buf = vaddr;
pr_info("%s: init done\n", __func__);
return 0;
}
fs_initcall(__init_sec_tsp_log); /* earlier than device_initcall */
static int __init __init_sec_tsp_raw_data(void)
{
char *vaddr;
sec_tsp_raw_data_size = SEC_TSP_RAW_DATA_BUF_SIZE;
vaddr = kmalloc(sec_tsp_raw_data_size, GFP_KERNEL);
if (!vaddr) {
pr_info("%s: ERROR! init failed!\n", __func__);
return -ENOMEM;
}
sec_tsp_raw_data_buf = vaddr;
#ifdef CONFIG_TOUCHSCREEN_DUAL_FOLDABLE
sec_tsp_raw_data_index_sub = (sec_tsp_raw_data_size / 2);
#endif
pr_info("%s: init done\n", __func__);
return 0;
}
fs_initcall(__init_sec_tsp_raw_data); /* earlier than device_initcall */
static int __init __init_sec_tsp_command_history(void)
{
char *vaddr;
sec_tsp_command_history_size = SEC_TSP_COMMAND_HISTORY_BUF_SIZE;
vaddr = kmalloc(sec_tsp_command_history_size, GFP_KERNEL);
if (!vaddr) {
pr_info("%s: ERROR! init failed!\n", __func__);
return -ENOMEM;
}
sec_tsp_command_history_buf = vaddr;
pr_info("%s: init done\n", __func__);
return 0;
}
fs_initcall(__init_sec_tsp_command_history); /* earlier than device_initcall */
#endif /* CONFIG_SEC_DEBUG_TSP_LOG */