static int rmnet_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct usbnet *unet = netdev_priv(dev);
u32 old_opmode;
int prev_mtu = dev->mtu;
int rc = 0;
old_opmode = unet->data[0];
switch (cmd) {
case RMNET_IOCTL_SET_LLP_ETHERNET:
if (test_bit(RMNET_MODE_LLP_IP, &unet->data[0])) {
ether_setup(dev);
random_ether_addr(dev->dev_addr);
dev->mtu = prev_mtu;
dev->netdev_ops = &rmnet_usb_ops_ether;
clear_bit(RMNET_MODE_LLP_IP, &unet->data[0]);
set_bit(RMNET_MODE_LLP_ETH, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set Ethernet protocol mode\n",
dev->name);
}
break;
case RMNET_IOCTL_SET_LLP_IP:
if (test_bit(RMNET_MODE_LLP_ETH, &unet->data[0])) {
dev->header_ops = 0;
dev->type = ARPHRD_RAWIP;
dev->hard_header_len = 0;
dev->mtu = prev_mtu;
dev->addr_len = 0;
dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
dev->netdev_ops = &rmnet_usb_ops_ip;
clear_bit(RMNET_MODE_LLP_ETH, &unet->data[0]);
set_bit(RMNET_MODE_LLP_IP, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set IP protocol mode\n",
dev->name);
}
break;
case RMNET_IOCTL_GET_LLP:
ifr->ifr_ifru.ifru_data = (void *)(unet->data[0]
& (RMNET_MODE_LLP_ETH
| RMNET_MODE_LLP_IP));
break;
case RMNET_IOCTL_SET_ALIGNED_QOS_ENABLE:
set_bit(RMNET_MODE_ALIGNED_QOS, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set QMI QOS Aligned header enable\n",
dev->name);
break;
case RMNET_IOCTL_SET_QOS_ENABLE:
set_bit(RMNET_MODE_QOS, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set QMI QOS header enable\n",
dev->name);
break;
case RMNET_IOCTL_SET_QOS_DISABLE:
clear_bit(RMNET_MODE_QOS, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set QMI QOS header disable\n",
dev->name);
break;
case RMNET_IOCTL_GET_QOS:
ifr->ifr_ifru.ifru_data = (void *)(unet->data[0]
& RMNET_MODE_QOS);
break;
case RMNET_IOCTL_GET_OPMODE:
ifr->ifr_ifru.ifru_data = (void *)unet->data[0];
break;
case RMNET_IOCTL_OPEN:
rc = usbnet_open(dev);
DBG0("[%s] rmnet_ioctl(): open transport port\n", dev->name);
break;
case RMNET_IOCTL_CLOSE:
rc = usbnet_stop(dev);
DBG0("[%s] rmnet_ioctl(): close transport port\n", dev->name);
break;
default:
dev_err(&unet->intf->dev, "[%s] error: "
"rmnet_ioct called for unsupported cmd[%d]",
dev->name, cmd);
return -EINVAL;
}
DBG2("[%s] %s: cmd=0x%x opmode old=0x%08x new=0x%08lx\n",
dev->name, __func__, cmd, old_opmode, unet->data[0]);
return rc;
}
static int rmnet_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct usbnet *unet = netdev_priv(dev);
u32 old_opmode;
int prev_mtu = dev->mtu;
int rc = 0;
old_opmode = unet->data[0]; /*data[0] saves operation mode*/
/* Process IOCTL command */
switch (cmd) {
case RMNET_IOCTL_SET_LLP_ETHERNET: /*Set Ethernet protocol*/
/* Perform Ethernet config only if in IP mode currently*/
if (test_bit(RMNET_MODE_LLP_IP, &unet->data[0])) {
ether_setup(dev);
random_ether_addr(dev->dev_addr);
dev->mtu = prev_mtu;
dev->netdev_ops = &rmnet_usb_ops_ether;
clear_bit(RMNET_MODE_LLP_IP, &unet->data[0]);
set_bit(RMNET_MODE_LLP_ETH, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set Ethernet protocol mode\n",
dev->name);
}
break;
case RMNET_IOCTL_SET_LLP_IP: /* Set RAWIP protocol*/
/* Perform IP config only if in Ethernet mode currently*/
if (test_bit(RMNET_MODE_LLP_ETH, &unet->data[0])) {
/* Undo config done in ether_setup() */
dev->header_ops = 0; /* No header */
dev->type = ARPHRD_RAWIP;
dev->hard_header_len = 0;
dev->mtu = prev_mtu;
dev->addr_len = 0;
dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
dev->needed_headroom = HEADROOM_FOR_QOS;
dev->netdev_ops = &rmnet_usb_ops_ip;
clear_bit(RMNET_MODE_LLP_ETH, &unet->data[0]);
set_bit(RMNET_MODE_LLP_IP, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set IP protocol mode\n",
dev->name);
}
break;
case RMNET_IOCTL_GET_LLP: /* Get link protocol state */
ifr->ifr_ifru.ifru_data = (void *)(unet->data[0]
& (RMNET_MODE_LLP_ETH
| RMNET_MODE_LLP_IP));
break;
case RMNET_IOCTL_SET_QOS_ENABLE: /* Set QoS header enabled*/
set_bit(RMNET_MODE_QOS, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set QMI QOS header enable\n",
dev->name);
break;
case RMNET_IOCTL_SET_QOS_DISABLE: /* Set QoS header disabled */
clear_bit(RMNET_MODE_QOS, &unet->data[0]);
DBG0("[%s] rmnet_ioctl(): set QMI QOS header disable\n",
dev->name);
break;
case RMNET_IOCTL_GET_QOS: /* Get QoS header state */
ifr->ifr_ifru.ifru_data = (void *)(unet->data[0]
& RMNET_MODE_QOS);
break;
case RMNET_IOCTL_GET_OPMODE: /* Get operation mode*/
ifr->ifr_ifru.ifru_data = (void *)unet->data[0];
break;
case RMNET_IOCTL_OPEN: /* Open transport port */
rc = usbnet_open(dev);
DBG0("[%s] rmnet_ioctl(): open transport port\n", dev->name);
break;
case RMNET_IOCTL_CLOSE: /* Close transport port*/
rc = usbnet_stop(dev);
DBG0("[%s] rmnet_ioctl(): close transport port\n", dev->name);
break;
default:
dev_err(&unet->intf->dev, "[%s] error: "
"rmnet_ioct called for unsupported cmd[%d]",
dev->name, cmd);
return -EINVAL;
}
DBG2("[%s] %s: cmd=0x%x opmode old=0x%08x new=0x%08lx\n",
dev->name, __func__, cmd, old_opmode, unet->data[0]);
return rc;
}
