static void __exit pdp_cleanup(void)
{
int slot;
struct pdp_info *dev;
down(&pdp_lock);
for (slot = 0; slot < MAX_PDP_CONTEXT; slot++) {
dev = pdp_remove_slot(slot);
if (dev) {
if (dev->type == DEV_TYPE_NET) {
DPRINTK(1, "%s(id: %u) network device removed\n",
dev->vn_dev.net->name, dev->id);
vnet_del_dev(dev->vn_dev.net);
} else if (dev->type == DEV_TYPE_SERIAL) {
struct tty_driver * tty_driver = get_tty_driver_by_id(dev);
DPRINTK(1, "%s(id: %u) serial device removed\n",
tty_driver->name, dev->id);
vs_del_dev(dev);
}
vfree(dev);
}
}
up(&pdp_lock);
}
static int pdp_deactivate(pdp_arg_t *pdp_arg, int force)
{
struct pdp_info *dev = NULL;
DPRINTK(2, "BEGIN\n");
DPRINTK(1, "id: %d\n", pdp_arg->id);
mutex_lock(&pdp_lock);
if (pdp_arg->id == 1) {
DPRINTK(1, "Channel ID is 1, we will remove the network device (pdp) of channel ID: %d.\n",
pdp_arg->id + g_adjust);
}
else {
DPRINTK(1, "Channel ID: %d\n", pdp_arg->id);
}
pdp_arg->id = pdp_arg->id + g_adjust;
//pdp_arg->id += PDP_ID_ADJUST;
DPRINTK(1, "ID is adjusted, new ID: %d\n", pdp_arg->id);
dev = pdp_get_dev(pdp_arg->id);
if (dev == NULL) {
DPRINTK(1, "not found id: %d\n", pdp_arg->id);
mutex_unlock(&pdp_lock);
return -EINVAL;
}
if (!force && dev->flags & DEV_FLAG_STICKY) {
DPRINTK(1, "sticky id: %u\n", pdp_arg->id);
mutex_unlock(&pdp_lock);
return -EACCES;
}
pdp_remove_dev(pdp_arg->id);
mutex_unlock(&pdp_lock);
if (dev->type == DEV_TYPE_NET) {
DPRINTK(1, "%s(id: %u) network device removed\n",
dev->vn_dev.net->name, dev->id);
vnet_del_dev(dev->vn_dev.net);
} else if (dev->type == DEV_TYPE_SERIAL) {
struct tty_driver * tty_driver = get_tty_driver_by_id(dev);
DPRINTK(1, "%s(id: %u) serial device removed\n",
tty_driver->name, dev->id);
vs_del_dev(dev);
}
kfree(dev);
DPRINTK(2, "END\n");
return 0;
}
static int pdp_deactivate(struct pdp_arg *pdp_arg, int force)
{
struct pdp_info *dev = NULL;
down(&pdp_lock);
pdp_arg->id = pdp_arg->id + g_adjust;
DPRINTK(2, "ID is adjusted, new ID: %d\n", pdp_arg->id);
dev = pdp_get_dev(pdp_arg->id);
if (dev == NULL) {
pr_err("[MULTIPDP] not found id: %u\n", pdp_arg->id);
up(&pdp_lock);
return -EINVAL;
}
if (!force && dev->flags & DEV_FLAG_STICKY) {
pr_err("[MULTIPDP] sticky id: %u\n", pdp_arg->id);
up(&pdp_lock);
return -EACCES;
}
pdp_remove_dev(pdp_arg->id);
up(&pdp_lock);
if (dev->type == DEV_TYPE_NET) {
#ifdef NO_TTY_MUTEX_VNET
vnet_stop(dev->vn_dev.net);
down(&pdp_txlock);
pdp_net_activation_count--;
#endif
vnet_del_dev(dev->vn_dev.net);
#ifdef NO_TTY_MUTEX_VNET
up(&pdp_txlock);
#endif
} else if (dev->type == DEV_TYPE_SERIAL) {
vs_del_dev(dev);
}
vfree(dev);
return 0;
}
static void __exit pdp_cleanup(void)
{
int slot;
struct pdp_info *dev;
down(&pdp_lock);
for (slot = 0; slot < MAX_PDP_CONTEXT; slot++) {
dev = pdp_remove_slot(slot);
if (dev) {
if (dev->type == DEV_TYPE_NET)
vnet_del_dev(dev->vn_dev.net);
else if (dev->type == DEV_TYPE_SERIAL)
vs_del_dev(dev);
else
pr_err("[MULTIPDP] Invalid device type\n");
vfree(dev);
}
}
up(&pdp_lock);
}
static int pdp_deactivate(pdp_arg_t *pdp_arg, int force)
{
struct pdp_info *dev = NULL;
DPRINTK(1, "id: %d\n", pdp_arg->id);
down(&pdp_lock);
if (pdp_arg->id == 1) {
DPRINTK(1, "Channel ID is 1, we will remove the network device (pdp) of channel ID: %d.\n",
pdp_arg->id + g_adjust);
}
else {
DPRINTK(1, "Channel ID: %d\n", pdp_arg->id);
}
pdp_arg->id = pdp_arg->id + g_adjust;
//pdp_arg->id += PDP_ID_ADJUST;
DPRINTK(1, "ID is adjusted, new ID: %d\n", pdp_arg->id);
dev = pdp_get_dev(pdp_arg->id);
if (dev == NULL) {
DPRINTK(1, "not found id: %u\n", pdp_arg->id);
up(&pdp_lock);
return -EINVAL;
}
if (!force && dev->flags & DEV_FLAG_STICKY) {
DPRINTK(1, "sticky id: %u\n", pdp_arg->id);
up(&pdp_lock);
return -EACCES;
}
pdp_remove_dev(pdp_arg->id);
up(&pdp_lock);
if (dev->type == DEV_TYPE_NET) {
#ifdef NO_TTY_MUTEX_VNET
//printk("<--- VNET Mutex lock : Before .. !!\n");
vnet_stop(dev->vn_dev.net);
down(&pdp_txlock);
pdp_net_activation_count--;
//printk("<--- VNET Mutex lock : After .. !!\n");
#endif
DPRINTK(1, "%s(id: %u) network device removed\n",
dev->vn_dev.net->name, dev->id);
vnet_del_dev(dev->vn_dev.net);
#ifdef NO_TTY_MUTEX_VNET
//printk("<--- VNET Mutex Unlock : Before .. !!\n");
up(&pdp_txlock);
//printk("<--- VNET Mutex Unlock : After .. !!\n");
#endif
} else if (dev->type == DEV_TYPE_SERIAL) {
struct tty_driver * tty_driver = get_tty_driver_by_id(dev);
DPRINTK(1, "%s(id: %u) serial device removed\n",
tty_driver->name, dev->id);
vs_del_dev(dev);
}
vfree(dev);
return 0;
}
static int pdp_activate(pdp_arg_t *pdp_arg, unsigned type, unsigned flags)
{
int ret;
struct pdp_info *dev;
struct net_device *net;
dev = vmalloc(sizeof(struct pdp_info) + MAX_PDP_PACKET_LEN);
if (dev == NULL) {
DPRINTK(1, "out of memory\n");
return -ENOMEM;
}
memset(dev, 0, sizeof(struct pdp_info));
/* @LDK@ added by gykim on 20070203 for adjusting IPC 3.0 spec. */
if (type == DEV_TYPE_NET) {
dev->id = pdp_arg->id + g_adjust;
}
else {
dev->id = pdp_arg->id;
}
/* @LDK@ added by gykim on 20070203 for adjusting IPC 3.0 spec. */
dev->type = type;
dev->flags = flags;
dev->tx_buf = (u8 *)(dev + 1);
if (type == DEV_TYPE_NET) {
net = vnet_add_dev((void *)dev);
if (net == NULL) {
vfree(dev);
return -ENOMEM;
}
dev->vn_dev.net = net;
strcpy(pdp_arg->ifname, net->name);
down(&pdp_lock);
ret = pdp_add_dev(dev);
if (ret < 0) {
EPRINTK("pdp_add_dev() failed\n");
up(&pdp_lock);
vnet_del_dev(dev->vn_dev.net);
vfree(dev);
return ret;
}
pdp_net_activation_count++;
up(&pdp_lock);
DPRINTK(1, "%s(id: %u) network device created\n",
net->name, dev->id);
} else if (type == DEV_TYPE_SERIAL) {
init_MUTEX(&dev->vs_dev.write_lock);
strcpy(dev->vs_dev.tty_name, pdp_arg->ifname);
ret = vs_add_dev(dev);
if (ret < 0) {
vfree(dev);
return ret;
}
down(&pdp_lock);
ret = pdp_add_dev(dev);
if (ret < 0) {
DPRINTK(1, "pdp_add_dev() failed\n");
up(&pdp_lock);
vs_del_dev(dev);
vfree(dev);
return ret;
}
up(&pdp_lock);
{
struct tty_driver * tty_driver = get_tty_driver_by_id(dev);
DPRINTK(1, "%s(id: %u) serial device is created.\n",
tty_driver->name, dev->id);
}
}
return 0;
}
static int pdp_activate(struct pdp_arg *pdp_arg, unsigned type, unsigned flags)
{
int ret;
struct pdp_info *dev;
struct net_device *net;
dev = vmalloc(sizeof(struct pdp_info) + MAX_PDP_PACKET_LEN);
if (dev == NULL) {
pr_err("[MULTIPDP] out of memory\n");
return -ENOMEM;
}
memset(dev, 0, sizeof(struct pdp_info));
/* @LDK@ added by gykim on 20070203 for adjusting IPC 3.0 spec. */
if (type == DEV_TYPE_NET)
dev->id = pdp_arg->id + g_adjust;
else
dev->id = pdp_arg->id;
/* @LDK@ added by gykim on 20070203 for adjusting IPC 3.0 spec. */
dev->type = type;
dev->flags = flags;
dev->tx_buf = (u8 *) (dev + 1);
if (type == DEV_TYPE_NET) {
net = vnet_add_dev((void *)dev);
if (net == NULL) {
pr_err("[MULTIPDP] vnet_add_dev is failed");
vfree(dev);
return -ENOMEM;
}
dev->vn_dev.net = net;
strncpy(pdp_arg->ifname,
net->name,
APP_NAME_MAX_LEN);
down(&pdp_lock);
ret = pdp_add_dev(dev);
if (ret < 0) {
pr_err("[MULTIPDP] pdp_add_dev() failed\n");
up(&pdp_lock);
vnet_del_dev(dev->vn_dev.net);
vfree(dev);
return ret;
}
pdp_net_activation_count++;
up(&pdp_lock);
DPRINTK(2, "%s(id: %u) network device created\n",
net->name, dev->id);
} else if (type == DEV_TYPE_SERIAL) {
init_MUTEX(&dev->vs_dev.write_lock);
strncpy(dev->vs_dev.tty_name,
pdp_arg->ifname,
APP_NAME_MAX_LEN);
ret = vs_add_dev(dev);
if (ret < 0) {
vfree(dev);
return ret;
}
down(&pdp_lock);
ret = pdp_add_dev(dev);
if (ret < 0) {
pr_err("[MULTIPDP] pdp_add_dev() failed\n");
up(&pdp_lock);
vs_del_dev(dev);
vfree(dev);
return ret;
}
up(&pdp_lock);
DPRINTK(2, "serial device is created id[%u]\n",
dev->id);
}
return 0;
}