static int diagcharmdm_close(struct inode *inode, struct file *file)
{
int i = 0;
DIAG_INFO("%s:%s(parent:%s): tgid=%d\n", __func__,
current->comm, current->parent->comm, current->tgid);
if (driver) {
mutex_lock(&driver->diagcharmdm_mutex);
driver->ref_count--;
/* On Client exit, try to destroy all 3 pools */
diagmem_exit(driver, POOL_TYPE_COPY);
diagmem_exit(driver, POOL_TYPE_HDLC);
diagmem_exit(driver, POOL_TYPE_WRITE_STRUCT);
for (i = 0; i < driver->num_mdmclients; i++)
if (driver->mdmclient_map[i].pid == current->tgid) {
driver->mdmclient_map[i].pid = 0;
break;
}
if (i < driver->num_mdmclients)
DIAG_INFO("%s:#%d(%d) %s close\n", __func__,
i, current->tgid, current->comm);
else
DIAG_WARNING("%s: nothing close\n", __func__);
mutex_unlock(&driver->diagcharmdm_mutex);
return 0;
}
return -ENOMEM;
}
static int diagcharmdm_open(struct inode *inode, struct file *file)
{
int i = 0;
#if defined(CONFIG_MACH_MECHA)
if (!sdio_diag_initialized) {
DIAG_INFO("sdio diag isn't in embedded mode \n");
return 0;
}
#endif
DIAG_INFO("%s:%s(parent:%s): tgid=%d\n", __func__,
current->comm, current->parent->comm, current->tgid);
if (driver) {
mutex_lock(&driver->diagcharmdm_mutex);
for (i = 0; i < driver->num_mdmclients; i++)
if (driver->mdmclient_map[i].pid == 0)
break;
if (i < driver->num_mdmclients) {
driver->mdmclient_map[i].pid = current->tgid;
strncpy(driver->mdmclient_map[i].name, current->comm, 20);
driver->mdmclient_map[i].name[19] = '\0';
} else {
mutex_unlock(&driver->diagcharmdm_mutex);
DIAG_INFO("%s:reach max client count\n", __func__);
for (i = 0; i < driver->num_mdmclients; i++)
DIAG_WARNING("%d) %s PID=%d", i, driver->
mdmclient_map[i].name,
driver->mdmclient_map[i].pid);
return -ENOMEM;
}
driver->mdmdata_ready[i] |= MSG_MASKS_TYPE;
driver->mdmdata_ready[i] |= EVENT_MASKS_TYPE;
driver->mdmdata_ready[i] |= LOG_MASKS_TYPE;
#if defined(CONFIG_ARCH_MSM8X60_LTE)
if (driver->ref_count == 0)
diagmem_init(driver);
driver->ref_count++;
#endif
mutex_unlock(&driver->diagcharmdm_mutex);
return 0;
}
return -ENOMEM;
}
static int diagcharmdm_close(struct inode *inode, struct file *file)
{
int i = 0;
#if defined(CONFIG_MACH_MECHA)
if (!sdio_diag_initialized) {
DIAG_INFO("sdio diag isn't in embedded mode \n");
return 0;
}
#endif
DIAG_INFO("%s:%s(parent:%s): tgid=%d\n", __func__,
current->comm, current->parent->comm, current->tgid);
if (driver) {
mutex_lock(&driver->diagcharmdm_mutex);
#if defined(CONFIG_ARCH_MSM8X60_LTE)
driver->ref_count--;
/* On Client exit, try to destroy all 3 pools */
diagmem_exit(driver, POOL_TYPE_COPY);
diagmem_exit(driver, POOL_TYPE_HDLC);
diagmem_exit(driver, POOL_TYPE_WRITE_STRUCT);
#endif
for (i = 0; i < driver->num_mdmclients; i++)
if (driver->mdmclient_map[i].pid == current->tgid) {
driver->mdmclient_map[i].pid = 0;
break;
}
if (i < driver->num_mdmclients)
DIAG_INFO("%s:#%d(%d) %s close\n", __func__,
i, current->tgid, current->comm);
else
DIAG_WARNING("%s: nothing close\n", __func__);
mutex_unlock(&driver->diagcharmdm_mutex);
return 0;
}
return -ENOMEM;
}
static int diagcharmdm_open(struct inode *inode, struct file *file)
{
int i = 0;
DIAG_INFO("%s:%s(parent:%s): tgid=%d\n", __func__,
current->comm, current->parent->comm, current->tgid);
if (driver) {
mutex_lock(&driver->diagcharmdm_mutex);
for (i = 0; i < driver->num_mdmclients; i++)
if (driver->mdmclient_map[i].pid == 0)
break;
if (i < driver->num_mdmclients) {
driver->mdmclient_map[i].pid = current->tgid;
strncpy(driver->mdmclient_map[i].name, current->comm, 20);
driver->mdmclient_map[i].name[19] = '\0';
} else {
mutex_unlock(&driver->diagcharmdm_mutex);
DIAG_INFO("%s:reach max client count\n", __func__);
for (i = 0; i < driver->num_clients; i++)
DIAG_WARNING("%d) %s PID=%d", i, driver->
mdmclient_map[i].name,
driver->mdmclient_map[i].pid);
return -ENOMEM;
}
driver->mdmdata_ready[i] |= MSG_MASKS_TYPE;
driver->mdmdata_ready[i] |= EVENT_MASKS_TYPE;
driver->mdmdata_ready[i] |= LOG_MASKS_TYPE;
if (driver->ref_count == 0)
diagmem_init(driver);
driver->ref_count++;
mutex_unlock(&driver->diagcharmdm_mutex);
return 0;
}
return -ENOMEM;
}
static int diagchar_open(struct inode *inode, struct file *file)
{
int i = 0;
void *temp;
DIAG_INFO("%s:%s(parent:%s): tgid=%d\n", __func__,
current->comm, current->parent->comm, current->tgid);
if (driver) {
mutex_lock(&driver->diagchar_mutex);
for (i = 0; i < driver->num_clients; i++)
if (driver->client_map[i].pid == 0)
break;
if (i < driver->num_clients) {
diag_add_client(i, file);
} else {
if (i < threshold_client_limit) {
driver->num_clients++;
temp = krealloc(driver->client_map
, (driver->num_clients) * sizeof(struct
diag_client_map), GFP_KERNEL);
if (!temp)
goto fail;
else
driver->client_map = temp;
temp = krealloc(driver->data_ready
, (driver->num_clients) * sizeof(int),
GFP_KERNEL);
if (!temp)
goto fail;
else
driver->data_ready = temp;
diag_add_client(i, file);
} else {
mutex_unlock(&driver->diagchar_mutex);
pr_alert("Max client limit for DIAG reached\n");
DIAG_INFO("Cannot open handle %s"
" %d", current->comm, current->tgid);
for (i = 0; i < driver->num_clients; i++)
DIAG_WARNING("%d) %s PID=%d", i, driver->
client_map[i].name,
driver->client_map[i].pid);
return -ENOMEM;
}
}
driver->data_ready[i] |= MSG_MASKS_TYPE;
driver->data_ready[i] |= EVENT_MASKS_TYPE;
driver->data_ready[i] |= LOG_MASKS_TYPE;
if (driver->ref_count == 0)
diagmem_init(driver);
driver->ref_count++;
mutex_unlock(&driver->diagchar_mutex);
return 0;
}
return -ENOMEM;
fail:
mutex_unlock(&driver->diagchar_mutex);
driver->num_clients--;
pr_alert("diag: Insufficient memory for new client");
return -ENOMEM;
}
