static int param_dsi_status_disable(const char *val, struct kernel_param *kp)
{
int ret = 0;
int int_val;
ret = kstrtos32(val, 0, &int_val);
if (ret)
return ret;
pr_info("%s: Set DSI status disable to %d\n",
__func__, int_val);
*((int *)kp->arg) = int_val;
return ret;
}
static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t n)
{
s32 value;
int ret;
if (kstrtos32(buf, 0, &value)) {
if (!strcmp(buf, "auto") || !strcmp(buf, "auto\n"))
value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
value = PM_QOS_LATENCY_ANY;
}
ret = dev_pm_qos_update_user_latency_tolerance(dev, value);
return ret < 0 ? ret : n;
}
static ssize_t pm_qos_latency_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t n)
{
s32 value;
int ret;
if (kstrtos32(buf, 0, &value))
return -EINVAL;
if (value < 0)
return -EINVAL;
ret = dev_pm_qos_update_request(dev->power.pq_req, value);
return ret < 0 ? ret : n;
}
static int param_set_interval(const char *val, struct kernel_param *kp)
{
int ret = 0;
int int_val;
ret = kstrtos32(val, 0, &int_val);
if (ret)
return ret;
if (int_val < STATUS_CHECK_INTERVAL_MIN_MS) {
pr_err("%s: Invalid value %d used, ignoring\n",
__func__, int_val);
ret = -EINVAL;
} else {
pr_info("%s: Set check interval to %d msecs\n",
__func__, int_val);
*((int *)kp->arg) = int_val;
}
return ret;
}
static ssize_t
debugfs_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)
{
char buf[128];
char *cmd = NULL;
char *_cmd = NULL;
int users;
int type;
s32 value;
if (copy_from_user(buf, ubuf, cnt - 1)) {
pr_err("[DDR DEVFREQ DEBUGFS] can not copy from user\n");
cnt = -EINVAL;
goto out;
}
buf[cnt - 1] = '\0';
cmd = buf;
_cmd = buf;
pr_info("[DDR DEVFREQ DEBUGFS] [cmd: %s[cnt: %d]]\n", cmd, cnt);
if (!strncmp("add ", _cmd, strlen("add "))) {
cmd = cmd + strlen("add ");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &type)) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
debugfs_add_request(type);
} else if (!strncmp("remove user-", _cmd, strlen("remove user-"))) {
cmd = cmd + strlen("remove user-");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &users)) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
debugfs_remove_request(users);
} else if (!strncmp("update user-", _cmd, strlen("update user-"))) {
cmd = cmd + strlen("update user-");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
if ('\0' == *_cmd) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
*_cmd = '\0';
if (kstrtos32(cmd, 10, &users)) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
cmd = _cmd + 1;
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &value)) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
debugfs_update_request(users, value);
} else if (!strncmp("request user-", _cmd, strlen("request user-"))) {
cmd = cmd + strlen("request user-");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &users)) {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
goto out;
}
pr_info("[DDR DEVFREQ DEBUGFS] memory throughput %d\n",
debugfs_request_value(users));
} else {
pr_err("[DDR DEVFREQ DEBUGFS] cmd error\n");
cnt = -EINVAL;
}
out:
return cnt;
}
static ssize_t
debugfs_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)
{
struct hwspinlock *__hwlock;
char buf[128];
char *cmd = NULL;
char *_cmd = NULL;
int id;
int timeout;
int unlock;
int ret ;
if (NULL == ubuf || 0 == cnt){
pr_err("buf is null !\n");
return (-EINVAL);
}
if(cnt > sizeof(buf))
{
pr_err("input count larger! \n");
return (-ENOMEM);
}
if (copy_from_user(buf, ubuf, cnt - 1)) {
pr_err("[Hwspinlock Debugfs] can not copy from user\n");
cnt = -EINVAL;
goto out;
}
buf[cnt - 1] = '\0';
cmd = buf;
_cmd = buf;
pr_debug("[Hwspinlock Debugfs] [cmd: %s[cnt: %d]]\n", cmd, (int)cnt);
if (!strncmp("request ", _cmd, strlen("request "))) {
cmd = cmd + strlen("request ");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &id)) {
pr_err("Hwspinlock Debugfs cmd error\n");
cnt = -EINVAL;
goto out;
}
hwlock = hwspin_lock_request_specific(id);
if (!hwlock)
pr_err("hwspinlock %u is already in use\n", id);
else
pr_info("[debug] Request hwspinlock %d sucess!",id);
} else if (!strncmp("free_lock ", _cmd, strlen("free_lock "))) {
cmd = cmd + strlen("free_lock ");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &id)) {
pr_err("Hwspinlock Debugfs cmd error\n");
cnt = -EINVAL;
goto out;
}
if (!hwlock){
__hwlock = hwspin_lock_lookup(id);
if (__hwlock){
debugfs_hwspinlock_lock_free(__hwlock);
__hwlock = NULL;
}else{
pr_err("Current haven't requested the hwspinlock %d\n",id);
goto out;
}
}else if (hwlock_to_id(hwlock) == id){
debugfs_hwspinlock_lock_free(hwlock);
hwlock = NULL;
}else
pr_err("[debug] please freelock the correct lock!\n");
} else if (!strncmp("trylock ", _cmd, strlen("trylock "))) {
cmd = cmd + strlen("trylock ");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
if ('\0' == *_cmd) {
pr_err("[debug] cmd error\n");
cnt = -EINVAL;
goto out;
}
*_cmd = '\0';
if (kstrtos32(cmd, 10, &id)) {
pr_err("[debug] cmd error\n");
cnt = -EINVAL;
goto out;
}
cmd = _cmd + 1;
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &timeout)) {
pr_err("[debug] cmd error\n");
cnt = -EINVAL;
goto out;
}
cmd = _cmd + 1;
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &unlock)) {
pr_err("[debug] cmd error\n");
cnt = -EINVAL;
goto out;
}
if (!hwlock){
pr_err("Current haven't requested the hwspinlock %d\n",id);
goto out;
}else if (hwlock_to_id(hwlock) == id && timeout >= 0){
ret =debugfs_hwspinlock_trylock_timeout(id, timeout, unlock);
if (!ret){
if (0 == timeout)
pr_info("[debug] hwspin_trylock %d sucess!\n",id);
else
pr_info("[debug] hwspin_trylock_timout %d sucess!\n",id);
}
}else if(timeout < 0)
pr_err("[debug] cmd err! timeout must > 0\n");
else
pr_err("[debug] please trylock the correct lock!\n");
}else if (!strncmp("unlock ", _cmd, strlen("unlock "))) {
cmd = cmd + strlen("unlock ");
_cmd = cmd;
while ((' ' != *_cmd) && ('\0' != *_cmd))
_cmd++;
*_cmd = '\0';
if (kstrtos32(cmd, 10, &id)) {
pr_err("Hwspinlock Debugfs cmd error\n");
cnt = -EINVAL;
goto out;
}
if (!hwlock){
pr_err("Current don't echo request the hwspinlock %d\n",id);
goto out;
}else if(hwlock_to_id(hwlock) == id && locked == 1){
hwspin_unlock(hwlock);
pr_info("[debug] hwspin_unlock id=%d sucess!\n",id);
}else
pr_err("[debug] please free the correct request lock!\n");
} else {
pr_err("Hwspinlock Debugfs cmd error\n");
cnt = -EINVAL;
}
out:
return cnt;
}
static ssize_t
mbox_debugfs_write(struct file *filp, const char __user *ubuf,
size_t cnt, loff_t *ppos)
{
char debugfs_cmd[128];
char *_cmd = NULL;
char *_tmp = NULL;
char rp_name[24];
u32 _mbox_index;
mbox_msg_t msg[8];
mbox_msg_len_t len;
if (NULL == ubuf || 0 == cnt) {
cnt = -EINVAL;
goto out;
}
/*to avoid overflow*/
if (sizeof(debugfs_cmd)/sizeof(char) < cnt) {
cnt = -EINVAL;
goto out;
}
if (copy_from_user(debugfs_cmd, ubuf, cnt - 1)) {
cnt = -EINVAL;
goto out;
}
debugfs_cmd[cnt - 1] = '\0';
_cmd = debugfs_cmd;
pr_debug("%s: [cmd: %s[cnt: %d]]\n", MODULE_NAME, debugfs_cmd, (int)cnt);
if (!strncmp("get ", _cmd, strlen("get "))) {
_cmd = _cmd + strlen("get ");
if (mbox_debugfs_mbox_get(_cmd)) {
cnt = -EINVAL;
goto out;
}
} else if (!strncmp("put ", _cmd, strlen("put "))) {
_cmd = _cmd + strlen("put ");
if (!strncmp("mailbox-", _cmd, strlen("mailbox-"))) {
_cmd = _cmd + strlen("mailbox-");
if (kstrtou32(_cmd, 10, &_mbox_index)) {
cnt = -EINVAL;
goto out;
} else {
if (mbox_debugfs_mbox_put(_mbox_index)) {
cnt = -EINVAL;
goto out;
}
}
} else {
cnt = -EINVAL;
goto out;
}
} else if (!strncmp("show", _cmd, strlen("show"))) {
mbox_debufs_mbox_show();
} else if (!strncmp("config ", _cmd, strlen("config "))) {
_cmd = _cmd + strlen("config ");
if (!strncmp("mailbox-", _cmd, strlen("mailbox-"))) {
_cmd = _cmd + strlen("mailbox-");
_tmp = _cmd;
while ((' ' != *_tmp) && ('\0' != *_tmp))
_tmp++;
if ('\0' == *_tmp) {
cnt = -EINVAL;
goto out;
}
*_tmp = '\0';
if (kstrtou32(_cmd, 10, &_mbox_index)) {
cnt = -EINVAL;
goto out;
}
*_tmp = ' ';
_cmd = _tmp + 1;
_tmp = _cmd;
while ((' ' != *_tmp) && ('\0' != *_tmp))
_tmp++;
strncpy(rp_name, _cmd, _tmp - _cmd);
rp_name[_tmp - _cmd] = '\0';
if (mbox_debugfs_mbox_config(_mbox_index, rp_name)) {
cnt = -EINVAL;
goto out;
}
} else {
cnt = -EINVAL;
goto out;
}
} else if (!strncmp("send ", _cmd, strlen("send "))) {
_cmd = _cmd + strlen("send ");
if (!strncmp("mailbox-", _cmd, strlen("mailbox-"))) {
_cmd = _cmd + strlen("mailbox-");
_tmp = _cmd;
while ((' ' != *_tmp) && ('\0' != *_tmp))
_tmp++;
if ('\0' == *_tmp) {
cnt = -EINVAL;
goto out;
}
*_tmp = '\0';
if (kstrtou32(_cmd, 10, &_mbox_index)) {
cnt = -EINVAL;
goto out;
}
*_tmp = ' ';
_cmd = _tmp + 1;
len = mbox_debugfs_msg_get(_cmd, msg);
if (len < 0) {
cnt = -EINVAL;
goto out;
}
if (mbox_debugfs_msg_send(_mbox_index, msg, len)) {
cnt = -EINVAL;
goto out;
}
} else {
cnt = -EINVAL;
goto out;
}
} else if (!strncmp("set times ", _cmd, strlen("set times "))) {
_cmd = _cmd + strlen("set times ");
_tmp = _cmd;
while ((' ' != *_tmp) && ('\0' != *_tmp))
_tmp++;
*_tmp = '\0';
if (kstrtos32(_cmd, 10, &debugfs_ipc_times)) {
cnt = -EINVAL;
goto out;
}
pr_info("set ipc times %d\n", debugfs_ipc_times);
} else {
cnt = -EINVAL;
goto out;
}
out:
return cnt;
}