static int wwan_stop(struct net_device *dev)
{
pr_debug("[%s] wwan_stop()\n", dev->name);
__wwan_close(dev);
netif_stop_queue(dev);
return 0;
}
static int wwan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
int rc = 0;
switch (cmd) {
case RMNET_IOCTL_SET_LLP_IP:
break;
case RMNET_IOCTL_GET_LLP:
ifr->ifr_ifru.ifru_data = (void *) RMNET_MODE_LLP_IP;
break;
case RMNET_IOCTL_SET_QOS_DISABLE:
break;
case RMNET_IOCTL_FLOW_ENABLE:
tc_qdisc_flow_control(dev, (u32)ifr->ifr_data, 1);
pr_debug("[%s] %s: enabled flow", dev->name, __func__);
break;
case RMNET_IOCTL_FLOW_DISABLE:
tc_qdisc_flow_control(dev, (u32)ifr->ifr_data, 0);
pr_debug("[%s] %s: disabled flow", dev->name, __func__);
break;
case RMNET_IOCTL_GET_QOS:
ifr->ifr_ifru.ifru_data = (void *) 0;
break;
case RMNET_IOCTL_GET_OPMODE:
ifr->ifr_ifru.ifru_data = (void *) RMNET_MODE_LLP_IP;
break;
case RMNET_IOCTL_OPEN:
rc = __wwan_open(dev);
pr_debug("[%s] wwan_ioctl(): open transport port\n",
dev->name);
break;
case RMNET_IOCTL_CLOSE:
rc = __wwan_close(dev);
pr_debug("[%s] wwan_ioctl(): close transport port\n",
dev->name);
break;
default:
pr_err("[%s] error: wwan_ioct called for unsupported cmd[%d]",
dev->name, cmd);
return -EINVAL;
}
return rc;
}
/**
* wwan_ioctl() - I/O control for wwan network driver.
*
* @dev: network device
* @ifr: ignored
* @cmd: cmd to be excecuded. can be one of the following:
* WWAN_IOCTL_OPEN - Open the network interface
* WWAN_IOCTL_CLOSE - Close the network interface
*
* Return codes:
* 0: success
* NETDEV_TX_BUSY: Error while transmitting the skb. Try again
* later
* -EFAULT: Error while transmitting the skb
*/
static int wwan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
int rc = 0;
struct rmnet_ioctl_data_s ioctl_data;
switch (cmd) {
case RMNET_IOCTL_SET_LLP_IP: /* Set RAWIP protocol */
break;
case RMNET_IOCTL_GET_LLP: /* Get link protocol state */
ioctl_data.u.operation_mode = RMNET_MODE_LLP_IP;
if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data,
sizeof(struct rmnet_ioctl_data_s)))
rc = -EFAULT;
break;
case RMNET_IOCTL_SET_QOS_DISABLE: /* Set QoS header disabled */
break;
case RMNET_IOCTL_FLOW_ENABLE:
if (copy_from_user(&ioctl_data, ifr->ifr_ifru.ifru_data,
sizeof(struct rmnet_ioctl_data_s))) {
rc = -EFAULT;
break;
}
tc_qdisc_flow_control(dev, ioctl_data.u.tcm_handle, 1);
pr_debug("[%s] %s: enabled flow", dev->name, __func__);
break;
case RMNET_IOCTL_FLOW_DISABLE:
if (copy_from_user(&ioctl_data, ifr->ifr_ifru.ifru_data,
sizeof(struct rmnet_ioctl_data_s))) {
rc = -EFAULT;
break;
}
tc_qdisc_flow_control(dev, ioctl_data.u.tcm_handle, 0);
pr_debug("[%s] %s: disabled flow", dev->name, __func__);
break;
case RMNET_IOCTL_GET_QOS: /* Get QoS header state */
/* QoS disabled */
ioctl_data.u.operation_mode = 0;
if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data,
sizeof(struct rmnet_ioctl_data_s)))
rc = -EFAULT;
break;
case RMNET_IOCTL_GET_OPMODE: /* Get operation mode */
ioctl_data.u.operation_mode = RMNET_MODE_LLP_IP;
if (copy_to_user(ifr->ifr_ifru.ifru_data, &ioctl_data,
sizeof(struct rmnet_ioctl_data_s)))
rc = -EFAULT;
break;
case RMNET_IOCTL_OPEN: /* Open transport port */
rc = __wwan_open(dev);
pr_debug("[%s] wwan_ioctl(): open transport port\n",
dev->name);
break;
case RMNET_IOCTL_CLOSE: /* Close transport port */
rc = __wwan_close(dev);
pr_debug("[%s] wwan_ioctl(): close transport port\n",
dev->name);
break;
default:
pr_err("[%s] error: wwan_ioct called for unsupported cmd[%d]",
dev->name, cmd);
return -EINVAL;
}
return rc;
}
