static int diagchar_close(struct inode *inode, struct file *file)
{
int i = 0;
struct diagchar_priv *diagpriv_data = file->private_data;
if (!(file->private_data)) {
pr_alert("diag: Invalid file pointer");
return -ENOMEM;
}
if (driver) {
#ifdef CONFIG_DIAG_OVER_USB
/* If the SD logging process exits, change logging to USB mode */
if (driver->logging_process_id == current->tgid
&& (driver->logging_mode != USB_MODE)) {
driver->logging_mode = USB_MODE;
diagfwd_connect();
}
#endif /* DIAG over USB */
/* Delete the pkt response table entry for the exiting process */
for (i = 0; i < diag_max_registration; i++)
if (driver->table[i].process_id == current->tgid)
driver->table[i].process_id = 0;
mutex_lock(&driver->diagchar_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_clients; i++) {
if (NULL != diagpriv_data && diagpriv_data->pid ==
driver->client_map[i].pid) {
driver->client_map[i].pid = 0;
kfree(diagpriv_data);
diagpriv_data = NULL;
break;
}
}
mutex_unlock(&driver->diagchar_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 void __exit diagchar_exit(void)
{
printk(KERN_INFO "diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
diagchar_cleanup();
printk(KERN_INFO "done diagchar exit\n");
}
void diagmem_free(struct diagchar_dev *driver, void *buf)
{
if (driver->diagpool != NULL && driver->count > 0) {
mempool_free(buf, driver->diagpool);
atomic_add(-1, (atomic_t *)&driver->count);
} else
printk(KERN_ALERT "\n Attempt to free up DIAG driver mempool"
" memory which is already free");
diagmem_exit(driver);
}
static void __exit diagchar_exit(void)
{
DIAG_INFO("diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
#if defined(CONFIG_ARCH_MSM8X60_LTE)
diagfwd_sdio_exit();
#endif
diagchar_cleanup();
DIAG_INFO("done diagchar exit\n");
}
static void __exit diagchar_exit(void)
{
printk(KERN_INFO "diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
if (chk_config_get_id() == AO8960_TOOLS_ID)
diagfwd_cntl_exit();
diag_sdio_fn(EXIT);
diagchar_cleanup();
printk(KERN_INFO "done diagchar exit\n");
}
static void diagchar_exit(void)
{
printk(KERN_INFO "diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
diagfwd_cntl_exit();
diag_sdio_fn(EXIT);
diag_bridge_fn(EXIT);
diag_debugfs_cleanup();
diagchar_cleanup();
printk(KERN_INFO "done diagchar exit\n");
}
static void __exit diagchar_exit(void)
{
printk(KERN_INFO "diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
#ifdef CONFIG_DIAG_SDIO_PIPE
if (machine_is_msm8x60_charm_surf() || machine_is_msm8x60_charm_ffa())
diagfwd_sdio_exit();
#endif
diagchar_cleanup();
printk(KERN_INFO "done diagchar exit\n");
}
static void __exit diagchar_exit(void)
{
printk(KERN_INFO "diagchar exiting ..\n");
/* On Driver exit, send special pool type to
ensure no memory leaks */
diagmem_exit(driver, POOL_TYPE_ALL);
diagfwd_exit();
#ifdef CONFIG_HUAWEI_FEATURE_PHUDIAG
phudiag_exit();
#endif
diagfwd_cntl_exit();
diag_sdio_fn(EXIT);
diagchar_cleanup();
printk(KERN_INFO "done diagchar exit\n");
}
void diagmem_free(struct diagchar_dev *driver, void *buf, int pool_type)
{
if (pool_type == POOL_TYPE_COPY) {
if (driver->diagpool != NULL && driver->count > 0) {
mempool_free(buf, driver->diagpool);
atomic_add(-1, (atomic_t *)&driver->count);
} else
printk(KERN_ALERT "\n Attempt to free up DIAG driver"
"mempool memory which is already free %d", driver->count);
} else if (pool_type == POOL_TYPE_HDLC) {
if (driver->diag_hdlc_pool != NULL &&
driver->count_hdlc_pool > 0) {
mempool_free(buf, driver->diag_hdlc_pool);
atomic_add(-1, (atomic_t *)&driver->count_hdlc_pool);
} else
printk(KERN_ALERT "\n Attempt to free up DIAG driver "
"HDLC mempool which is already free %d ", driver->count_hdlc_pool);
}
diagmem_exit(driver);
}
void diagfwd_bridge_exit(void)
{
int i;
pr_debug("diag: in %s\n", __func__);
for (i = 0; i < MAX_HSIC_CH; i++) {
if (diag_hsic[i].hsic_device_enabled) {
diag_hsic_close(i);
diag_hsic[i].hsic_device_enabled = 0;
diag_bridge[i].enabled = 0;
}
diag_hsic[i].hsic_inited = 0;
kfree(diag_hsic[i].hsic_buf_tbl);
}
diagmem_exit(driver, POOL_TYPE_ALL);
if (driver->diag_smux_enabled) {
driver->lcid = LCID_INVALID;
kfree(driver->buf_in_smux);
driver->diag_smux_enabled = 0;
diag_bridge[SMUX].enabled = 0;
}
platform_driver_unregister(&msm_hsic_ch_driver);
platform_driver_unregister(&msm_diagfwd_smux_driver);
/* destroy USB MDM specific variables */
for (i = 0; i < MAX_BRIDGES; i++) {
if (diag_bridge[i].enabled) {
#ifdef CONFIG_DIAG_OVER_USB
if (diag_bridge[i].usb_connected)
usb_diag_free_req(diag_bridge[i].ch);
usb_diag_close(diag_bridge[i].ch);
#endif
kfree(diag_bridge[i].usb_buf_out);
kfree(diag_bridge[i].usb_read_ptr);
destroy_workqueue(diag_bridge[i].wq);
diag_bridge[i].enabled = 0;
}
}
kfree(driver->write_ptr_mdm);
}
void diagfwd_hsic_exit(void)
{
pr_debug("diag: in %s\n", __func__);
if (driver->hsic_initialized)
diag_hsic_close();
diagmem_exit(driver, POOL_TYPE_ALL);
/* destroy USB MDM specific variables */
#ifdef CONFIG_DIAG_OVER_USB
if (driver->usb_mdm_connected)
usb_diag_free_req(driver->mdm_ch);
#endif
platform_driver_unregister(&msm_hsic_ch_driver);
#ifdef CONFIG_DIAG_OVER_USB
usb_diag_close(driver->mdm_ch);
#endif
kfree(driver->usb_buf_mdm_out);
kfree(driver->hsic_buf_tbl);
kfree(driver->usb_read_mdm_ptr);
destroy_workqueue(driver->diag_hsic_wq);
driver->hsic_device_enabled = 0;
}
void diagmem_free(struct diagchar_dev *driver, void *buf, int pool_type)
{
int index;
index = 0;
if (pool_type == POOL_TYPE_COPY) {
if (driver->diagpool != NULL && driver->count > 0) {
mempool_free(buf, driver->diagpool);
atomic_add(-1, (atomic_t *)&driver->count);
} else
pr_err("diag: Attempt to free up DIAG driver mempool memory which is already free %d",
driver->count);
} else if (pool_type == POOL_TYPE_HDLC) {
if (driver->diag_hdlc_pool != NULL &&
driver->count_hdlc_pool > 0) {
mempool_free(buf, driver->diag_hdlc_pool);
atomic_add(-1, (atomic_t *)&driver->count_hdlc_pool);
} else
pr_err("diag: Attempt to free up DIAG driver HDLC mempool which is already free %d ",
driver->count_hdlc_pool);
} else if (pool_type == POOL_TYPE_USER) {
if (driver->diag_user_pool != NULL &&
driver->count_user_pool > 0) {
mempool_free(buf, driver->diag_user_pool);
atomic_add(-1, (atomic_t *)&driver->count_user_pool);
} else {
pr_err("diag: Attempt to free up DIAG driver USER mempool which is already free %d ",
driver->count_user_pool);
}
} else if (pool_type == POOL_TYPE_WRITE_STRUCT) {
if (driver->diag_write_struct_pool != NULL &&
driver->count_write_struct_pool > 0) {
mempool_free(buf, driver->diag_write_struct_pool);
atomic_add(-1,
(atomic_t *)&driver->count_write_struct_pool);
} else
pr_err("diag: Attempt to free up DIAG driver USB structure mempool which is already free %d ",
driver->count_write_struct_pool);
#ifdef CONFIG_DIAGFWD_BRIDGE_CODE
} else if (pool_type == POOL_TYPE_HSIC ||
pool_type == POOL_TYPE_HSIC_2) {
index = pool_type - POOL_TYPE_HSIC;
if (diag_hsic[index].diag_hsic_pool != NULL &&
diag_hsic[index].count_hsic_pool > 0) {
mempool_free(buf, diag_hsic[index].diag_hsic_pool);
atomic_add(-1, (atomic_t *)
&diag_hsic[index].count_hsic_pool);
} else
pr_err("diag: Attempt to free up DIAG driver HSIC mempool which is already free %d, ch = %d",
diag_hsic[index].count_hsic_pool, index);
} else if (pool_type == POOL_TYPE_HSIC_WRITE ||
pool_type == POOL_TYPE_HSIC_2_WRITE) {
index = pool_type - POOL_TYPE_HSIC_WRITE;
if (diag_hsic[index].diag_hsic_write_pool != NULL &&
diag_hsic[index].count_hsic_write_pool > 0) {
mempool_free(buf,
diag_hsic[index].diag_hsic_write_pool);
atomic_add(-1, (atomic_t *)
&diag_hsic[index].count_hsic_write_pool);
} else
pr_err("diag: Attempt to free up DIAG driver HSIC USB structure mempool which is already free %d, ch = %d",
driver->count_write_struct_pool, index);
#endif
} else {
pr_err("diag: In %s, unknown pool type: %d\n",
__func__, pool_type);
}
diagmem_exit(driver, pool_type);
}
static int diagchar_close(struct inode *inode, struct file *file)
{
int i = 0;
struct diagchar_priv *diagpriv_data = file->private_data;
if (!(file->private_data)) {
pr_alert("diag: Invalid file pointer");
return -ENOMEM;
}
/* clean up any DCI registrations for this client
* This will specially help in case of ungraceful exit of any DCI client
* This call will remove any pending registrations of such client
*/
diagchar_ioctl(NULL, DIAG_IOCTL_DCI_DEINIT, 0);
#ifdef CONFIG_DIAG_OVER_USB
/* If the SD logging process exits, change logging to USB mode */
if (driver->logging_process_id == current->tgid) {
driver->logging_mode = USB_MODE;
diagfwd_connect();
#ifdef CONFIG_DIAG_HSIC_PIPE
driver->num_hsic_buf_tbl_entries = 0;
for (i = 0; i < driver->poolsize_hsic_write; i++) {
if (driver->hsic_buf_tbl[i].buf) {
/* Return the buffer to the pool */
diagmem_free(driver, (unsigned char *)
(driver->hsic_buf_tbl[i].buf),
POOL_TYPE_HSIC);
driver->hsic_buf_tbl[i].buf = 0;
driver->hsic_buf_tbl[i].length = 0;
}
}
diagfwd_cancel_hsic();
diagfwd_connect_hsic(0);
#endif
}
#endif /* DIAG over USB */
/* Delete the pkt response table entry for the exiting process */
for (i = 0; i < diag_max_reg; i++)
if (driver->table[i].process_id == current->tgid)
driver->table[i].process_id = 0;
if (driver) {
mutex_lock(&driver->diagchar_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_clients; i++) {
if (NULL != diagpriv_data && diagpriv_data->pid ==
driver->client_map[i].pid) {
driver->client_map[i].pid = 0;
kfree(diagpriv_data);
diagpriv_data = NULL;
break;
}
}
mutex_unlock(&driver->diagchar_mutex);
return 0;
}
return -ENOMEM;
}
static int diagchar_close(struct inode *inode, struct file *file)
{
int i = 0;
struct diagchar_priv *diagpriv_data = file->private_data;
pr_debug("diag: process exit %s\n", current->comm);
if (!(file->private_data)) {
pr_alert("diag: Invalid file pointer");
return -ENOMEM;
}
/* clean up any DCI registrations, if this is a DCI client
* This will specially help in case of ungraceful exit of any DCI client
* This call will remove any pending registrations of such client
*/
for (i = 0; i < MAX_DCI_CLIENTS; i++) {
if (driver->dci_client_tbl[i].client &&
driver->dci_client_tbl[i].client->tgid ==
current->tgid) {
diagchar_ioctl(NULL, DIAG_IOCTL_DCI_DEINIT, 0);
break;
}
}
/* If the exiting process is the socket process */
if (driver->socket_process &&
(driver->socket_process->tgid == current->tgid)) {
driver->socket_process = NULL;
}
if (driver->callback_process &&
(driver->callback_process->tgid == current->tgid)) {
driver->callback_process = NULL;
}
#ifdef CONFIG_DIAG_OVER_USB
/* If the SD logging process exits, change logging to USB mode */
if (driver->logging_process_id == current->tgid) {
driver->logging_mode = USB_MODE;
diagfwd_connect();
#ifdef CONFIG_DIAG_BRIDGE_CODE
diag_clear_hsic_tbl();
diagfwd_cancel_hsic();
diagfwd_connect_bridge(0);
#endif
}
#endif /* DIAG over USB */
/* Delete the pkt response table entry for the exiting process */
for (i = 0; i < diag_max_reg; i++)
if (driver->table[i].process_id == current->tgid)
driver->table[i].process_id = 0;
if (driver) {
mutex_lock(&driver->diagchar_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_clients; i++) {
if (NULL != diagpriv_data && diagpriv_data->pid ==
driver->client_map[i].pid) {
driver->client_map[i].pid = 0;
kfree(diagpriv_data);
diagpriv_data = NULL;
break;
}
}
mutex_unlock(&driver->diagchar_mutex);
return 0;
}
return -ENOMEM;
}
