int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
{
uint16_t respcmd, curcmd;
struct cmd_header *resp;
int ret = 0;
unsigned long flags;
uint16_t result;
lbs_deb_enter(LBS_DEB_HOST);
mutex_lock(&priv->lock);
spin_lock_irqsave(&priv->driver_lock, flags);
if (!priv->cur_cmd) {
lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
ret = -1;
spin_unlock_irqrestore(&priv->driver_lock, flags);
goto done;
}
resp = (void *)data;
curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
respcmd = le16_to_cpu(resp->command);
result = le16_to_cpu(resp->result);
lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
respcmd, le16_to_cpu(resp->seqnum), len);
lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
netdev_info(priv->dev,
"Received CMD_RESP with invalid sequence %d (expected %d)\n",
le16_to_cpu(resp->seqnum),
le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
if (respcmd != CMD_RET(curcmd) &&
respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
netdev_info(priv->dev, "Invalid CMD_RESP %x to command %x!\n",
respcmd, curcmd);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
if (resp->result == cpu_to_le16(0x0004)) {
/*
*/
netdev_info(priv->dev,
"Firmware returns DEFER to command %x. Will let it time out...\n",
le16_to_cpu(resp->command));
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
/* */
del_timer(&priv->command_timer);
priv->cmd_timed_out = 0;
if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
u16 action = le16_to_cpu(psmode->action);
lbs_deb_host(
"CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
result, action);
if (result) {
lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
result);
/*
*/
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR &&
action == PS_MODE_ACTION_ENTER_PS)
priv->psmode = LBS802_11POWERMODECAM;
} else if (action == PS_MODE_ACTION_ENTER_PS) {
priv->needtowakeup = 0;
priv->psstate = PS_STATE_AWAKE;
lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
if (priv->connect_status != LBS_CONNECTED) {
/*
*/
lbs_deb_host(
"disconnected, invoking lbs_ps_wakeup\n");
spin_unlock_irqrestore(&priv->driver_lock, flags);
mutex_unlock(&priv->lock);
lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS,
false);
mutex_lock(&priv->lock);
spin_lock_irqsave(&priv->driver_lock, flags);
}
} else if (action == PS_MODE_ACTION_EXIT_PS) {
priv->needtowakeup = 0;
priv->psstate = PS_STATE_FULL_POWER;
lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
} else {
lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
}
__lbs_complete_command(priv, priv->cur_cmd, result);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = 0;
goto done;
}
/* */
if ((result != 0 || !(respcmd & 0x8000))) {
lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
result, respcmd);
/*
*/
switch (respcmd) {
case CMD_RET(CMD_GET_HW_SPEC):
case CMD_RET(CMD_802_11_RESET):
lbs_deb_host("CMD_RESP: reset failed\n");
break;
}
__lbs_complete_command(priv, priv->cur_cmd, result);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
spin_unlock_irqrestore(&priv->driver_lock, flags);
if (priv->cur_cmd && priv->cur_cmd->callback) {
ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
resp);
}
spin_lock_irqsave(&priv->driver_lock, flags);
if (priv->cur_cmd) {
/* */
__lbs_complete_command(priv, priv->cur_cmd, result);
}
spin_unlock_irqrestore(&priv->driver_lock, flags);
done:
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
return ret;
}
/**
* lbs_add_mesh - add mshX interface
*
* @priv: A pointer to the &struct lbs_private structure
* returns: 0 if successful, -X otherwise
*/
static int lbs_add_mesh(struct lbs_private *priv)
{
struct net_device *mesh_dev = NULL;
struct wireless_dev *mesh_wdev;
int ret = 0;
lbs_deb_enter(LBS_DEB_MESH);
/* Allocate a virtual mesh device */
mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!mesh_wdev) {
lbs_deb_mesh("init mshX wireless device failed\n");
ret = -ENOMEM;
goto done;
}
mesh_dev = alloc_netdev(0, "msh%d", ether_setup);
if (!mesh_dev) {
lbs_deb_mesh("init mshX device failed\n");
ret = -ENOMEM;
goto err_free_wdev;
}
mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
mesh_wdev->wiphy = priv->wdev->wiphy;
mesh_wdev->netdev = mesh_dev;
mesh_dev->ml_priv = priv;
mesh_dev->ieee80211_ptr = mesh_wdev;
priv->mesh_dev = mesh_dev;
mesh_dev->netdev_ops = &mesh_netdev_ops;
mesh_dev->ethtool_ops = &lbs_ethtool_ops;
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr, ETH_ALEN);
SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
/* Register virtual mesh interface */
ret = register_netdev(mesh_dev);
if (ret) {
pr_err("cannot register mshX virtual interface\n");
goto err_free_netdev;
}
ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
if (ret)
goto err_unregister;
lbs_persist_config_init(mesh_dev);
/* Everything successful */
ret = 0;
goto done;
err_unregister:
unregister_netdev(mesh_dev);
err_free_netdev:
free_netdev(mesh_dev);
err_free_wdev:
kfree(mesh_wdev);
done:
lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
return ret;
}
/**
* lbs_add_card - adds the card. It will probe the
* card, allocate the lbs_priv and initialize the device.
*
* @card: A pointer to card
* @dmdev: A pointer to &struct device
* returns: A pointer to &struct lbs_private structure
*/
struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
{
struct net_device *dev;
struct wireless_dev *wdev;
struct lbs_private *priv = NULL;
lbs_deb_enter(LBS_DEB_MAIN);
/* Allocate an Ethernet device and register it */
wdev = lbs_cfg_alloc(dmdev);
if (IS_ERR(wdev)) {
pr_err("cfg80211 init failed\n");
goto done;
}
wdev->iftype = NL80211_IFTYPE_STATION;
priv = wdev_priv(wdev);
priv->wdev = wdev;
if (lbs_init_adapter(priv)) {
pr_err("failed to initialize adapter structure\n");
goto err_wdev;
}
dev = alloc_netdev(0, "wlan%d", ether_setup);
if (!dev) {
dev_err(dmdev, "no memory for network device instance\n");
goto err_adapter;
}
dev->ieee80211_ptr = wdev;
dev->ml_priv = priv;
SET_NETDEV_DEV(dev, dmdev);
wdev->netdev = dev;
priv->dev = dev;
dev->netdev_ops = &lbs_netdev_ops;
dev->watchdog_timeo = 5 * HZ;
dev->ethtool_ops = &lbs_ethtool_ops;
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
priv->card = card;
strcpy(dev->name, "wlan%d");
lbs_deb_thread("Starting main thread...\n");
init_waitqueue_head(&priv->waitq);
priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
if (IS_ERR(priv->main_thread)) {
lbs_deb_thread("Error creating main thread.\n");
goto err_ndev;
}
priv->work_thread = create_singlethread_workqueue("lbs_worker");
INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
priv->wol_criteria = EHS_REMOVE_WAKEUP;
priv->wol_gpio = 0xff;
priv->wol_gap = 20;
priv->ehs_remove_supported = true;
goto done;
err_ndev:
free_netdev(dev);
err_adapter:
lbs_free_adapter(priv);
err_wdev:
lbs_cfg_free(priv);
priv = NULL;
done:
lbs_deb_leave_args(LBS_DEB_MAIN, "priv %p", priv);
return priv;
}
static int lbs_init_adapter(struct lbs_private *priv)
{
size_t bufsize;
int i, ret = 0;
static u8 gnet_bss_desc[MAX_NETWORK_COUNT * sizeof(struct bss_descriptor)];
lbs_deb_enter("enter lbs_init_adapter\n");
/* Allocate buffer to store the BSSID list */
bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
/*priv->networks = kzalloc(bufsize, GFP_KERNEL);
if (!priv->networks) {
lbs_pr_err("Out of memory allocating beacons\n");
ret = -1;
goto out;
}*/
priv->networks=(struct bss_descriptor *)gnet_bss_desc;
memset(priv->networks,0,bufsize);
/* Initialize scan result lists */
INIT_LIST_HEAD(&priv->network_free_list);//Initialize scan related list and objects.
INIT_LIST_HEAD(&priv->network_list);
//Link all bss descriptors into free list.
for (i = 0; i < MAX_NETWORK_COUNT; i++) {
list_add_tail(&priv->networks[i].list,
&priv->network_free_list);
}
memset(priv->current_addr, 0xff, ETH_ALEN);
priv->connect_status = LBS_DISCONNECTED;
priv->mesh_connect_status = LBS_DISCONNECTED;
priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
priv->mode = IW_MODE_INFRA;
priv->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
priv->radio_on = 1;
priv->enablehwauto = 1;
priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
priv->psmode = LBS802_11POWERMODECAM;
priv->psstate = PS_STATE_FULL_POWER;
//mutex_init(&priv->lock);
/*setup_timer(&priv->command_timer, command_timer_fn,
(unsigned long)priv);*/
INIT_LIST_HEAD(&priv->cmdfreeq);
INIT_LIST_HEAD(&priv->cmdpendingq);
/*spin_lock_init(&priv->driver_lock);
init_waitqueue_head(&priv->cmd_pending);*/
/* Allocate the command buffers */
if (lbs_allocate_cmd_buffer(priv)) {
lbs_pr_err("Out of memory allocating command buffers\n");
ret = -ENOMEM;
goto out;
}
priv->resp_idx = 0;
priv->resp_len[0] = 0; //Contains the response from hardware.
/* Create the event FIFO */
/*priv->event_fifo = kfifo_alloc(sizeof(u32) * 16, GFP_KERNEL, NULL);
if (IS_ERR(priv->event_fifo)) {
lbs_pr_err("Out of memory allocating event FIFO buffer\n");
ret = -ENOMEM;
goto out;
}*/
out:
lbs_deb_leave_args("leave lbs_init_adapter(ret=%d)\n", ret);
return ret;
}
int lbs_process_event(struct lbs_private *priv, u32 event)
{
int ret = 0;
lbs_deb_enter(LBS_DEB_CMD);
switch (event) {
case MACREG_INT_CODE_LINK_SENSED:
printk("EVENT: link sensed\n");//掉线
break;
case MACREG_INT_CODE_DEAUTHENTICATED:
printk("EVENT: deauthenticated\n");
//lbs_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_DISASSOCIATED:
printk("EVENT: disassociated\n");
//lbs_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
printk("EVENT: link lost\n");
//lbs_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_PS_SLEEP:
printk("EVENT: ps sleep\n");
/* handle unexpected PS SLEEP event */
if (priv->psstate == PS_STATE_FULL_POWER) {
printk("EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
break;
}
priv->psstate = PS_STATE_PRE_SLEEP;
//lbs_ps_confirm_sleep(priv);
break;
case MACREG_INT_CODE_HOST_AWAKE:
printk("EVENT: host awake\n");
//lbs_send_confirmwake(priv);
break;
case MACREG_INT_CODE_PS_AWAKE:
printk("EVENT: ps awake\n");
/* handle unexpected PS AWAKE event */
if (priv->psstate == PS_STATE_FULL_POWER) {
printk(
"EVENT: In FULL POWER mode - ignore PS AWAKE\n");
break;
}
priv->psstate = PS_STATE_AWAKE;
if (priv->needtowakeup) {
/*
* wait for the command processing to finish
* before resuming sending
* priv->needtowakeup will be set to FALSE
* in lbs_ps_wakeup()
*/
printk("waking up ...\n");
//lbs_ps_wakeup(priv, 0);
}
break;
case MACREG_INT_CODE_MIC_ERR_UNICAST:
printk("EVENT: UNICAST MIC ERROR\n");
//handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
break;
case MACREG_INT_CODE_MIC_ERR_MULTICAST:
printk("EVENT: MULTICAST MIC ERROR\n");
//handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
break;
case MACREG_INT_CODE_MIB_CHANGED:
printk("EVENT: MIB CHANGED\n");
break;
case MACREG_INT_CODE_INIT_DONE:
printk("EVENT: INIT DONE\n");
break;
case MACREG_INT_CODE_ADHOC_BCN_LOST:
printk("EVENT: ADHOC beacon lost\n");
break;
case MACREG_INT_CODE_RSSI_LOW:
printk("EVENT: rssi low\n");
break;
case MACREG_INT_CODE_SNR_LOW:
printk("EVENT: snr low\n");
break;
case MACREG_INT_CODE_MAX_FAIL:
printk("EVENT: max fail\n");
break;
case MACREG_INT_CODE_RSSI_HIGH:
printk("EVENT: rssi high\n");
break;
case MACREG_INT_CODE_SNR_HIGH:
printk("EVENT: snr high\n");
break;
#ifdef MASK_DEBUG
case MACREG_INT_CODE_MESH_AUTO_STARTED:
/* Ignore spurious autostart events if autostart is disabled */
if (!priv->mesh_autostart_enabled) {
lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
break;
}
lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
priv->mesh_connect_status = LBS_CONNECTED;
if (priv->mesh_open) {
netif_carrier_on(priv->mesh_dev);
if (!priv->tx_pending_len)
netif_wake_queue(priv->mesh_dev);
}
priv->mode = IW_MODE_ADHOC;
schedule_work(&priv->sync_channel);
break;
#endif
default:
printk("EVENT: unknown event id %d\n", event);
break;
}
lbs_deb_leave_args(LBS_DEB_CMD, ret);
return ret;
}
int libertas_process_event(wlan_private * priv)
{
int ret = 0;
wlan_adapter *adapter = priv->adapter;
u32 eventcause;
lbs_deb_enter(LBS_DEB_CMD);
spin_lock_irq(&adapter->driver_lock);
eventcause = adapter->eventcause;
spin_unlock_irq(&adapter->driver_lock);
lbs_deb_cmd("event cause 0x%x\n", eventcause);
switch (eventcause >> SBI_EVENT_CAUSE_SHIFT) {
case MACREG_INT_CODE_LINK_SENSED:
lbs_deb_cmd("EVENT: MACREG_INT_CODE_LINK_SENSED\n");
break;
case MACREG_INT_CODE_DEAUTHENTICATED:
lbs_deb_cmd("EVENT: deauthenticated\n");
libertas_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_DISASSOCIATED:
lbs_deb_cmd("EVENT: disassociated\n");
libertas_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_LINK_LOSE_NO_SCAN:
lbs_deb_cmd("EVENT: link lost\n");
libertas_mac_event_disconnected(priv);
break;
case MACREG_INT_CODE_PS_SLEEP:
lbs_deb_cmd("EVENT: sleep\n");
/* handle unexpected PS SLEEP event */
if (adapter->psstate == PS_STATE_FULL_POWER) {
lbs_deb_cmd(
"EVENT: in FULL POWER mode, ignoreing PS_SLEEP\n");
break;
}
adapter->psstate = PS_STATE_PRE_SLEEP;
libertas_ps_confirm_sleep(priv, (u16) adapter->psmode);
break;
case MACREG_INT_CODE_PS_AWAKE:
lbs_deb_cmd("EVENT: awake\n");
/* handle unexpected PS AWAKE event */
if (adapter->psstate == PS_STATE_FULL_POWER) {
lbs_deb_cmd(
"EVENT: In FULL POWER mode - ignore PS AWAKE\n");
break;
}
adapter->psstate = PS_STATE_AWAKE;
if (adapter->needtowakeup) {
/*
* wait for the command processing to finish
* before resuming sending
* adapter->needtowakeup will be set to FALSE
* in libertas_ps_wakeup()
*/
lbs_deb_cmd("waking up ...\n");
libertas_ps_wakeup(priv, 0);
}
break;
case MACREG_INT_CODE_MIC_ERR_UNICAST:
lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_UNICAST);
break;
case MACREG_INT_CODE_MIC_ERR_MULTICAST:
lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
handle_mic_failureevent(priv, MACREG_INT_CODE_MIC_ERR_MULTICAST);
break;
case MACREG_INT_CODE_MIB_CHANGED:
case MACREG_INT_CODE_INIT_DONE:
break;
case MACREG_INT_CODE_ADHOC_BCN_LOST:
lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
break;
case MACREG_INT_CODE_RSSI_LOW:
lbs_pr_alert("EVENT: rssi low\n");
break;
case MACREG_INT_CODE_SNR_LOW:
lbs_pr_alert("EVENT: snr low\n");
break;
case MACREG_INT_CODE_MAX_FAIL:
lbs_pr_alert("EVENT: max fail\n");
break;
case MACREG_INT_CODE_RSSI_HIGH:
lbs_pr_alert("EVENT: rssi high\n");
break;
case MACREG_INT_CODE_SNR_HIGH:
lbs_pr_alert("EVENT: snr high\n");
break;
case MACREG_INT_CODE_MESH_AUTO_STARTED:
/* Ignore spurious autostart events if autostart is disabled */
if (!priv->mesh_autostart_enabled) {
lbs_pr_info("EVENT: MESH_AUTO_STARTED (ignoring)\n");
break;
}
lbs_pr_info("EVENT: MESH_AUTO_STARTED\n");
adapter->connect_status = LIBERTAS_CONNECTED;
if (priv->mesh_open == 1) {
netif_wake_queue(priv->mesh_dev);
netif_carrier_on(priv->mesh_dev);
}
adapter->mode = IW_MODE_ADHOC;
schedule_work(&priv->sync_channel);
break;
default:
lbs_pr_alert("EVENT: unknown event id 0x%04x\n",
eventcause >> SBI_EVENT_CAUSE_SHIFT);
break;
}
spin_lock_irq(&adapter->driver_lock);
adapter->eventcause = 0;
spin_unlock_irq(&adapter->driver_lock);
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
*
* @param priv A pointer to struct lbs_private
* @param skb A pointer to skb which includes the received packet
* @return 0 or -1
*/
int lbs_process_rxed_packet(struct lbs_private *priv, char *buffer,u16 size)
{
int ret = 0;
struct rxpackethdr *p_rx_pkt;
struct rxpd *p_rx_pd;
int hdrchop;
struct ethhdr *p_ethhdr;
const u8 rfc1042_eth_hdr[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
struct eth_packet *rx_ethpkt=&priv->rx_pkt;//我们要的以太网数据报
lbs_deb_enter(LBS_DEB_RX);
p_rx_pd = (struct rxpd *)buffer;//包的状态信息
p_rx_pkt = (struct rxpackethdr *) ((u8 *)p_rx_pd +
le32_to_cpu(p_rx_pd->pkt_ptr));//得到存放802.3的头信息的地址
// lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", buffer,
// min(size, 100));
if (size < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
lbs_deb_rx("rx err: frame received with bad length\n");
ret = 0;
goto done;
}
#ifdef MASK_DEBUG
lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
size, (size_t)le32_to_cpu(p_rx_pd->pkt_ptr),
size - (size_t)le32_to_cpu(p_rx_pd->pkt_ptr));
lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
sizeof(p_rx_pkt->eth803_hdr.dest_addr));
lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
sizeof(p_rx_pkt->eth803_hdr.src_addr));
#endif
if (memcmp(&p_rx_pkt->rfc1042_hdr,
rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) {//这是RFC1042中定义的SNAP头信息，比较是否是rfc1042封装的mac帧
/*
* Replace the 803 header and rfc1042 header (llc/snap) with an
* EthernetII header, keep the src/dst and snap_type (ethertype)
*
* The firmware only passes up SNAP frames converting
* all RX Data from 802.11 to 802.2/LLC/SNAP frames.
*
* To create the Ethernet II, just move the src, dst address right
* before the snap_type.
*/
//marvel芯片给出的数据为802.11LLC层的数据包格式，有snap头，现在将其更改为802.3的
//数据报格式，只要将802.11mac头信息中的源地址和目的地址复制到snap的右边即可，具体格式请参考相关标准的
//mac帧格式
p_ethhdr = (struct ethhdr *)
((u8 *) & p_rx_pkt->eth803_hdr
+ sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
- sizeof(p_rx_pkt->eth803_hdr.dest_addr)
- sizeof(p_rx_pkt->eth803_hdr.src_addr)
- sizeof(p_rx_pkt->rfc1042_hdr.snap_type));//找出存放802.3 MAC的起始位置
memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,//直接覆盖,从后往前拷贝
sizeof(p_ethhdr->h_source));
memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
sizeof(p_ethhdr->h_dest));
/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
* that was removed
*/
hdrchop = (u8 *)p_ethhdr - (u8 *)p_rx_pd;//用于重新更改skb->data的地址，后面使用的是skb_pull
} else {
lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
(u8 *) & p_rx_pkt->rfc1042_hdr,
sizeof(p_rx_pkt->rfc1042_hdr));
/* Chop off the rxpd */
hdrchop = (u8 *)&p_rx_pkt->eth803_hdr - (u8 *)p_rx_pd;
}
/* Chop off the leading header bytes so the skb points to the start of
* either the reconstructed EthII frame or the 802.2/llc/snap frame
*/
//skb_pull(skb, hdrchop);//去掉前面的rxtp以及802.11mac
rx_ethpkt->len=size-hdrchop;
rx_ethpkt->data=(char *)((char *)buffer+hdrchop);//这就是我们数据的真正存放地址
//dbg_netdata("rx network data",rx_ethpkt->data,rx_ethpkt->len);
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
#if 0
if (priv->enablehwauto)
priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);//记录下当前数据传输的速率
lbs_compute_rssi(priv, p_rx_pd);//副产品，计算RSSI信号强度
#endif
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_RX, ret);
return ret;
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
*
* @param priv A pointer to wlan_private
* @param skb A pointer to skb which includes the received packet
* @return 0 or -1
*/
int libertas_process_rxed_packet(wlan_private * priv, struct sk_buff *skb)
{
wlan_adapter *adapter = priv->adapter;
int ret = 0;
struct rxpackethdr *p_rx_pkt;
struct rxpd *p_rx_pd;
int hdrchop;
struct ethhdr *p_ethhdr;
const u8 rfc1042_eth_hdr[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
lbs_deb_enter(LBS_DEB_RX);
if (priv->adapter->monitormode != WLAN_MONITOR_OFF)
return process_rxed_802_11_packet(priv, skb);
p_rx_pkt = (struct rxpackethdr *) skb->data;
p_rx_pd = &p_rx_pkt->rx_pd;
if (p_rx_pd->rx_control & RxPD_MESH_FRAME)
SET_MESH_FRAME(skb);
else
UNSET_MESH_FRAME(skb);
lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
min_t(unsigned int, skb->len, 100));
if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
lbs_deb_rx("rx err: frame received with bad length\n");
priv->stats.rx_length_errors++;
ret = 0;
goto done;
}
/*
* Check rxpd status and update 802.3 stat,
*/
if (!(p_rx_pd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
lbs_deb_rx("rx err: frame received with bad status\n");
lbs_pr_alert("rxpd not ok\n");
priv->stats.rx_errors++;
ret = 0;
goto done;
}
lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
sizeof(p_rx_pkt->eth803_hdr.dest_addr));
lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
sizeof(p_rx_pkt->eth803_hdr.src_addr));
if (memcmp(&p_rx_pkt->rfc1042_hdr,
rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) {
/*
* Replace the 803 header and rfc1042 header (llc/snap) with an
* EthernetII header, keep the src/dst and snap_type (ethertype)
*
* The firmware only passes up SNAP frames converting
* all RX Data from 802.11 to 802.2/LLC/SNAP frames.
*
* To create the Ethernet II, just move the src, dst address right
* before the snap_type.
*/
p_ethhdr = (struct ethhdr *)
((u8 *) & p_rx_pkt->eth803_hdr
+ sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
- sizeof(p_rx_pkt->eth803_hdr.dest_addr)
- sizeof(p_rx_pkt->eth803_hdr.src_addr)
- sizeof(p_rx_pkt->rfc1042_hdr.snap_type));
memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,
sizeof(p_ethhdr->h_source));
memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
sizeof(p_ethhdr->h_dest));
/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
* that was removed
*/
hdrchop = (u8 *) p_ethhdr - (u8 *) p_rx_pkt;
} else {
lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
(u8 *) & p_rx_pkt->rfc1042_hdr,
sizeof(p_rx_pkt->rfc1042_hdr));
/* Chop off the rxpd */
hdrchop = (u8 *) & p_rx_pkt->eth803_hdr - (u8 *) p_rx_pkt;
}
/* Chop off the leading header bytes so the skb points to the start of
* either the reconstructed EthII frame or the 802.2/llc/snap frame
*/
skb_pull(skb, hdrchop);
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (adapter->auto_rate)
adapter->cur_rate = libertas_fw_index_to_data_rate(p_rx_pd->rx_rate);
wlan_compute_rssi(priv, p_rx_pd);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
libertas_upload_rx_packet(priv, skb);
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
return ret;
}
/**
* @brief This function processes a received 802.11 packet and forwards it
* to kernel/upper layer
*
* @param priv A pointer to wlan_private
* @param skb A pointer to skb which includes the received packet
* @return 0 or -1
*/
static int process_rxed_802_11_packet(wlan_private * priv, struct sk_buff *skb)
{
wlan_adapter *adapter = priv->adapter;
int ret = 0;
struct rx80211packethdr *p_rx_pkt;
struct rxpd *prxpd;
struct rx_radiotap_hdr radiotap_hdr;
struct rx_radiotap_hdr *pradiotap_hdr;
lbs_deb_enter(LBS_DEB_RX);
p_rx_pkt = (struct rx80211packethdr *) skb->data;
prxpd = &p_rx_pkt->rx_pd;
// lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100));
if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
lbs_deb_rx("rx err: frame received wit bad length\n");
priv->stats.rx_length_errors++;
ret = 0;
goto done;
}
/*
* Check rxpd status and update 802.3 stat,
*/
if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) {
//lbs_deb_rx("rx err: frame received with bad status\n");
priv->stats.rx_errors++;
}
lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
/* create the exported radio header */
if(priv->adapter->monitormode == WLAN_MONITOR_OFF) {
/* no radio header */
/* chop the rxpd */
skb_pull(skb, sizeof(struct rxpd));
}
else {
/* radiotap header */
radiotap_hdr.hdr.it_version = 0;
/* XXX must check this value for pad */
radiotap_hdr.hdr.it_pad = 0;
radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
/* unknown values */
radiotap_hdr.flags = 0;
radiotap_hdr.chan_freq = 0;
radiotap_hdr.chan_flags = 0;
radiotap_hdr.antenna = 0;
/* known values */
radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
/* XXX must check no carryout */
radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
radiotap_hdr.rx_flags = 0;
if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
radiotap_hdr.rx_flags |= IEEE80211_RADIOTAP_F_RX_BADFCS;
//memset(radiotap_hdr.pad, 0x11, IEEE80211_RADIOTAP_HDRLEN - 18);
/* chop the rxpd */
skb_pull(skb, sizeof(struct rxpd));
/* add space for the new radio header */
if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0,
GFP_ATOMIC)) {
lbs_pr_alert("%s: couldn't pskb_expand_head\n",
__func__);
}
pradiotap_hdr =
(struct rx_radiotap_hdr *)skb_push(skb,
sizeof(struct
rx_radiotap_hdr));
memcpy(pradiotap_hdr, &radiotap_hdr,
sizeof(struct rx_radiotap_hdr));
}
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (adapter->auto_rate)
adapter->cur_rate = libertas_fw_index_to_data_rate(prxpd->rx_rate);
wlan_compute_rssi(priv, prxpd);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
libertas_upload_rx_packet(priv, skb);
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
return ret;
}
/*
* TODO: Fix the issue when DownloadcommandToStation is being called the
* second time when the command times out. All the cmdptr->xxx are in little
* endian and therefore all the comparissions will fail.
* For now - we are not performing the endian conversion the second time - but
* for PS and DEEP_SLEEP we need to worry
*/
static int DownloadcommandToStation(wlan_private * priv,
struct cmd_ctrl_node *cmdnode)
{
unsigned long flags;
struct cmd_ds_command *cmdptr;
wlan_adapter *adapter = priv->adapter;
int ret = -1;
u16 cmdsize;
u16 command;
lbs_deb_enter(LBS_DEB_HOST);
if (!adapter || !cmdnode) {
lbs_deb_host("DNLD_CMD: adapter or cmdmode is NULL\n");
goto done;
}
cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
spin_lock_irqsave(&adapter->driver_lock, flags);
if (!cmdptr || !cmdptr->size) {
lbs_deb_host("DNLD_CMD: cmdptr is NULL or zero\n");
__libertas_cleanup_and_insert_cmd(priv, cmdnode);
spin_unlock_irqrestore(&adapter->driver_lock, flags);
goto done;
}
adapter->cur_cmd = cmdnode;
adapter->cur_cmd_retcode = 0;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
cmdsize = cmdptr->size;
command = cpu_to_le16(cmdptr->command);
lbs_deb_host("DNLD_CMD: command 0x%04x, size %d, jiffies %lu\n",
command, le16_to_cpu(cmdptr->size), jiffies);
lbs_deb_hex(LBS_DEB_HOST, "DNLD_CMD", cmdnode->bufvirtualaddr, cmdsize);
cmdnode->cmdwaitqwoken = 0;
cmdsize = cpu_to_le16(cmdsize);
ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmdptr, cmdsize);
if (ret != 0) {
lbs_deb_host("DNLD_CMD: hw_host_to_card failed\n");
spin_lock_irqsave(&adapter->driver_lock, flags);
adapter->cur_cmd_retcode = ret;
__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
adapter->nr_cmd_pending--;
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
goto done;
}
lbs_deb_cmd("DNLD_CMD: sent command 0x%04x, jiffies %lu\n", command, jiffies);
/* Setup the timer after transmit command */
if (command == CMD_802_11_SCAN || command == CMD_802_11_AUTHENTICATE
|| command == CMD_802_11_ASSOCIATE)
mod_timer(&adapter->command_timer, jiffies + (10*HZ));
else
mod_timer(&adapter->command_timer, jiffies + (5*HZ));
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
return ret;
}
/*
* Check mesh FW version and appropriately send the mesh start
* command
*/
int lbs_init_mesh(struct lbs_private *priv)
{
struct net_device *dev = priv->dev;
int ret = 0;
lbs_deb_enter(LBS_DEB_MESH);
priv->mesh_connect_status = LBS_DISCONNECTED;
/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
/* 5.110.22 have mesh command with 0xa3 command id */
/* 10.0.0.p0 FW brings in mesh config command with different id */
/* Check FW version MSB and initialize mesh_fw_ver */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
/* Enable mesh, if supported, and work out which TLV it uses.
0x100 + 291 is an unofficial value used in 5.110.20.pXX
0x100 + 37 is the official value used in 5.110.21.pXX
but we check them in that order because 20.pXX doesn't
give an error -- it just silently fails. */
/* 5.110.20.pXX firmware will fail the command if the channel
doesn't match the existing channel. But only if the TLV
is correct. If the channel is wrong, _BOTH_ versions will
give an error to 0x100+291, and allow 0x100+37 to succeed.
It's just that 5.110.20.pXX will not have done anything
useful */
priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->channel)) {
priv->mesh_tlv = TLV_TYPE_MESH_ID;
if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->channel))
priv->mesh_tlv = 0;
}
} else
if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
/* 10.0.0.pXX new firmwares should succeed with TLV
* 0x100+37; Do not invoke command with old TLV.
*/
priv->mesh_tlv = TLV_TYPE_MESH_ID;
if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->channel))
priv->mesh_tlv = 0;
}
if (priv->mesh_tlv) {
sprintf(priv->mesh_ssid, "mesh");
priv->mesh_ssid_len = 4;
lbs_add_mesh(priv);
if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
netdev_err(dev, "cannot register lbs_mesh attribute\n");
ret = 1;
}
lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
return ret;
}
static int wlan_cmd_802_11_set_wep(wlan_private * priv,
struct cmd_ds_command *cmd,
u32 cmd_act,
void * pdata_buf)
{
struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
wlan_adapter *adapter = priv->adapter;
int ret = 0;
struct assoc_request * assoc_req = pdata_buf;
lbs_deb_enter(LBS_DEB_CMD);
cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);
if (cmd_act == CMD_ACT_ADD) {
int i;
if (!assoc_req) {
lbs_deb_cmd("Invalid association request!");
ret = -1;
goto done;
}
wep->action = cpu_to_le16(CMD_ACT_ADD);
/* default tx key index */
wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
(u32)CMD_WEP_KEY_INDEX_MASK));
/* Copy key types and material to host command structure */
for (i = 0; i < 4; i++) {
struct enc_key * pkey = &assoc_req->wep_keys[i];
switch (pkey->len) {
case KEY_LEN_WEP_40:
wep->keytype[i] = CMD_TYPE_WEP_40_BIT;
memmove(&wep->keymaterial[i], pkey->key,
pkey->len);
lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
break;
case KEY_LEN_WEP_104:
wep->keytype[i] = CMD_TYPE_WEP_104_BIT;
memmove(&wep->keymaterial[i], pkey->key,
pkey->len);
lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
break;
case 0:
break;
default:
lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
i, pkey->len);
ret = -1;
goto done;
break;
}
}
} else if (cmd_act == CMD_ACT_REMOVE) {
/* ACT_REMOVE clears _all_ WEP keys */
wep->action = cpu_to_le16(CMD_ACT_REMOVE);
/* default tx key index */
wep->keyindex = cpu_to_le16((u16)(adapter->wep_tx_keyidx &
(u32)CMD_WEP_KEY_INDEX_MASK));
lbs_deb_cmd("SET_WEP: remove key %d\n", adapter->wep_tx_keyidx);
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
/**
* @brief This function prepare the command before send to firmware.
*
* @param priv A pointer to wlan_private structure
* @param cmd_no command number
* @param cmd_action command action: GET or SET
* @param wait_option wait option: wait response or not
* @param cmd_oid cmd oid: treated as sub command
* @param pdata_buf A pointer to informaion buffer
* @return 0 or -1
*/
int libertas_prepare_and_send_command(wlan_private * priv,
u16 cmd_no,
u16 cmd_action,
u16 wait_option, u32 cmd_oid, void *pdata_buf)
{
int ret = 0;
wlan_adapter *adapter = priv->adapter;
struct cmd_ctrl_node *cmdnode;
struct cmd_ds_command *cmdptr;
unsigned long flags;
lbs_deb_enter(LBS_DEB_HOST);
if (!adapter) {
lbs_deb_host("PREP_CMD: adapter is NULL\n");
ret = -1;
goto done;
}
if (adapter->surpriseremoved) {
lbs_deb_host("PREP_CMD: card removed\n");
ret = -1;
goto done;
}
cmdnode = libertas_get_free_cmd_ctrl_node(priv);
if (cmdnode == NULL) {
lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
/* Wake up main thread to execute next command */
wake_up_interruptible(&priv->waitq);
ret = -1;
goto done;
}
libertas_set_cmd_ctrl_node(priv, cmdnode, cmd_oid, wait_option, pdata_buf);
cmdptr = (struct cmd_ds_command *)cmdnode->bufvirtualaddr;
lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
if (!cmdptr) {
lbs_deb_host("PREP_CMD: cmdptr is NULL\n");
libertas_cleanup_and_insert_cmd(priv, cmdnode);
ret = -1;
goto done;
}
/* Set sequence number, command and INT option */
adapter->seqnum++;
cmdptr->seqnum = cpu_to_le16(adapter->seqnum);
cmdptr->command = cpu_to_le16(cmd_no);
cmdptr->result = 0;
switch (cmd_no) {
case CMD_GET_HW_SPEC:
ret = wlan_cmd_hw_spec(priv, cmdptr);
break;
case CMD_802_11_PS_MODE:
ret = wlan_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
break;
case CMD_802_11_SCAN:
ret = libertas_cmd_80211_scan(priv, cmdptr, pdata_buf);
break;
case CMD_MAC_CONTROL:
ret = wlan_cmd_mac_control(priv, cmdptr);
break;
case CMD_802_11_ASSOCIATE:
case CMD_802_11_REASSOCIATE:
ret = libertas_cmd_80211_associate(priv, cmdptr, pdata_buf);
break;
case CMD_802_11_DEAUTHENTICATE:
ret = libertas_cmd_80211_deauthenticate(priv, cmdptr);
break;
case CMD_802_11_SET_WEP:
ret = wlan_cmd_802_11_set_wep(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_802_11_AD_HOC_START:
ret = libertas_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
break;
case CMD_CODE_DNLD:
break;
case CMD_802_11_RESET:
ret = wlan_cmd_802_11_reset(priv, cmdptr, cmd_action);
break;
case CMD_802_11_GET_LOG:
ret = wlan_cmd_802_11_get_log(priv, cmdptr);
break;
case CMD_802_11_AUTHENTICATE:
ret = libertas_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
break;
case CMD_802_11_GET_STAT:
ret = wlan_cmd_802_11_get_stat(priv, cmdptr);
break;
case CMD_802_11_SNMP_MIB:
ret = wlan_cmd_802_11_snmp_mib(priv, cmdptr,
cmd_action, cmd_oid, pdata_buf);
break;
case CMD_MAC_REG_ACCESS:
case CMD_BBP_REG_ACCESS:
case CMD_RF_REG_ACCESS:
ret = wlan_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_802_11_RF_CHANNEL:
ret = wlan_cmd_802_11_rf_channel(priv, cmdptr,
cmd_action, pdata_buf);
break;
case CMD_802_11_RF_TX_POWER:
ret = wlan_cmd_802_11_rf_tx_power(priv, cmdptr,
cmd_action, pdata_buf);
break;
case CMD_802_11_RADIO_CONTROL:
ret = wlan_cmd_802_11_radio_control(priv, cmdptr, cmd_action);
break;
case CMD_802_11_DATA_RATE:
ret = wlan_cmd_802_11_data_rate(priv, cmdptr, cmd_action);
break;
case CMD_802_11_RATE_ADAPT_RATESET:
ret = wlan_cmd_802_11_rate_adapt_rateset(priv,
cmdptr, cmd_action);
break;
case CMD_MAC_MULTICAST_ADR:
ret = wlan_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
break;
case CMD_802_11_MONITOR_MODE:
ret = wlan_cmd_802_11_monitor_mode(priv, cmdptr,
cmd_action, pdata_buf);
break;
case CMD_802_11_AD_HOC_JOIN:
ret = libertas_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
break;
case CMD_802_11_RSSI:
ret = wlan_cmd_802_11_rssi(priv, cmdptr);
break;
case CMD_802_11_AD_HOC_STOP:
ret = libertas_cmd_80211_ad_hoc_stop(priv, cmdptr);
break;
case CMD_802_11_ENABLE_RSN:
ret = wlan_cmd_802_11_enable_rsn(priv, cmdptr, cmd_action,
pdata_buf);
break;
case CMD_802_11_KEY_MATERIAL:
ret = wlan_cmd_802_11_key_material(priv, cmdptr, cmd_action,
cmd_oid, pdata_buf);
break;
case CMD_802_11_PAIRWISE_TSC:
break;
case CMD_802_11_GROUP_TSC:
break;
case CMD_802_11_MAC_ADDRESS:
ret = wlan_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
break;
case CMD_802_11_EEPROM_ACCESS:
ret = wlan_cmd_802_11_eeprom_access(priv, cmdptr,
cmd_action, pdata_buf);
break;
case CMD_802_11_SET_AFC:
case CMD_802_11_GET_AFC:
cmdptr->command = cpu_to_le16(cmd_no);
cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
S_DS_GEN);
memmove(&cmdptr->params.afc,
pdata_buf, sizeof(struct cmd_ds_802_11_afc));
ret = 0;
goto done;
case CMD_802_11D_DOMAIN_INFO:
ret = libertas_cmd_802_11d_domain_info(priv, cmdptr,
cmd_no, cmd_action);
break;
case CMD_802_11_SLEEP_PARAMS:
ret = wlan_cmd_802_11_sleep_params(priv, cmdptr, cmd_action);
break;
case CMD_802_11_INACTIVITY_TIMEOUT:
ret = wlan_cmd_802_11_inactivity_timeout(priv, cmdptr,
cmd_action, pdata_buf);
libertas_set_cmd_ctrl_node(priv, cmdnode, 0, 0, pdata_buf);
break;
case CMD_802_11_TPC_CFG:
cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
cmdptr->size =
cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
S_DS_GEN);
memmove(&cmdptr->params.tpccfg,
pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
ret = 0;
break;
case CMD_802_11_LED_GPIO_CTRL:
{
struct mrvlietypes_ledgpio *gpio =
(struct mrvlietypes_ledgpio*)
cmdptr->params.ledgpio.data;
memmove(&cmdptr->params.ledgpio,
pdata_buf,
sizeof(struct cmd_ds_802_11_led_ctrl));
cmdptr->command =
cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
#define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
cmdptr->size =
cpu_to_le16(gpio->header.len + S_DS_GEN +
ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
gpio->header.len = cpu_to_le16(gpio->header.len);
ret = 0;
break;
}
case CMD_802_11_PWR_CFG:
cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
cmdptr->size =
cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
S_DS_GEN);
memmove(&cmdptr->params.pwrcfg, pdata_buf,
sizeof(struct cmd_ds_802_11_pwr_cfg));
ret = 0;
break;
case CMD_BT_ACCESS:
ret = wlan_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_FWT_ACCESS:
ret = wlan_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_MESH_ACCESS:
ret = wlan_cmd_mesh_access(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_SET_BOOT2_VER:
ret = wlan_cmd_set_boot2_ver(priv, cmdptr, cmd_action, pdata_buf);
break;
case CMD_GET_TSF:
cmdptr->command = cpu_to_le16(CMD_GET_TSF);
cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
S_DS_GEN);
ret = 0;
break;
default:
lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
ret = -1;
break;
}
/* return error, since the command preparation failed */
if (ret != 0) {
lbs_deb_host("PREP_CMD: command preparation failed\n");
libertas_cleanup_and_insert_cmd(priv, cmdnode);
ret = -1;
goto done;
}
cmdnode->cmdwaitqwoken = 0;
libertas_queue_cmd(adapter, cmdnode, 1);
wake_up_interruptible(&priv->waitq);
if (wait_option & CMD_OPTION_WAITFORRSP) {
lbs_deb_host("PREP_CMD: wait for response\n");
might_sleep();
wait_event_interruptible(cmdnode->cmdwait_q,
cmdnode->cmdwaitqwoken);
}
spin_lock_irqsave(&adapter->driver_lock, flags);
if (adapter->cur_cmd_retcode) {
lbs_deb_host("PREP_CMD: command failed with return code %d\n",
adapter->cur_cmd_retcode);
adapter->cur_cmd_retcode = 0;
ret = -1;
}
spin_unlock_irqrestore(&adapter->driver_lock, flags);
done:
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
return ret;
}
static int if_usb_prog_firmware(wlan_private * priv)
{
struct usb_card_rec *cardp = priv->card;
int i = 0;
static int reset_count = 10;
int ret = 0;
lbs_deb_enter(LBS_DEB_USB);
cardp->rinfo.priv = priv;
restart:
if (if_usb_submit_rx_urb_fwload(priv) < 0) {
lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
ret = -1;
goto done;
}
cardp->bootcmdresp = 0;
do {
int j = 0;
i++;
/* Issue Boot command = 1, Boot from Download-FW */
if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
/* wait for command response */
do {
j++;
msleep_interruptible(100);
} while (cardp->bootcmdresp == 0 && j < 10);
} while (cardp->bootcmdresp == 0 && i < 5);
if (cardp->bootcmdresp == 0) {
if (--reset_count >= 0) {
libertas_do_reset(priv);
goto restart;
}
return -1;
}
i = 0;
priv->adapter->fw_ready = 0;
cardp->totalbytes = 0;
cardp->fwlastblksent = 0;
cardp->CRC_OK = 1;
cardp->fwdnldover = 0;
cardp->fwseqnum = -1;
cardp->totalbytes = 0;
cardp->fwfinalblk = 0;
if_prog_firmware(priv);
do {
lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n");
i++;
msleep_interruptible(100);
if (priv->adapter->surpriseremoved || i >= 20)
break;
} while (!cardp->fwdnldover);
if (!cardp->fwdnldover) {
lbs_pr_info("failed to load fw, resetting device!\n");
if (--reset_count >= 0) {
libertas_do_reset(priv);
goto restart;
}
lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
ret = -1;
goto done;
}
if_usb_submit_rx_urb(priv);
/* Delay 200 ms to waiting for the FW ready */
msleep_interruptible(200);
priv->adapter->fw_ready = 1;
done:
lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
return ret;
}
int lbs_process_event(struct lbs_private *priv, u32 event)
{
int ret = 0;
struct cmd_header cmd;
lbs_deb_enter(LBS_DEB_CMD);
switch (event) {
case MACREG_INT_CODE_LINK_SENSED:
lbs_deb_cmd("EVENT: link sensed\n");
break;
case MACREG_INT_CODE_DEAUTHENTICATED:
lbs_deb_cmd("EVENT: deauthenticated\n");
lbs_mac_event_disconnected(priv, false);
break;
case MACREG_INT_CODE_DISASSOCIATED:
lbs_deb_cmd("EVENT: disassociated\n");
lbs_mac_event_disconnected(priv, false);
break;
case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
lbs_deb_cmd("EVENT: link lost\n");
lbs_mac_event_disconnected(priv, true);
break;
case MACREG_INT_CODE_PS_SLEEP:
lbs_deb_cmd("EVENT: ps sleep\n");
/* handle unexpected PS SLEEP event */
if (priv->psstate == PS_STATE_FULL_POWER) {
lbs_deb_cmd(
"EVENT: in FULL POWER mode, ignoring PS_SLEEP\n");
break;
}
if (!list_empty(&priv->cmdpendingq)) {
lbs_deb_cmd("EVENT: commands in queue, do not sleep\n");
break;
}
priv->psstate = PS_STATE_PRE_SLEEP;
lbs_ps_confirm_sleep(priv);
break;
case MACREG_INT_CODE_HOST_AWAKE:
lbs_deb_cmd("EVENT: host awake\n");
if (priv->reset_deep_sleep_wakeup)
priv->reset_deep_sleep_wakeup(priv);
priv->is_deep_sleep = 0;
lbs_cmd_async(priv, CMD_802_11_WAKEUP_CONFIRM, &cmd,
sizeof(cmd));
priv->is_host_sleep_activated = 0;
wake_up_interruptible(&priv->host_sleep_q);
break;
case MACREG_INT_CODE_DEEP_SLEEP_AWAKE:
if (priv->reset_deep_sleep_wakeup)
priv->reset_deep_sleep_wakeup(priv);
lbs_deb_cmd("EVENT: ds awake\n");
priv->is_deep_sleep = 0;
priv->wakeup_dev_required = 0;
wake_up_interruptible(&priv->ds_awake_q);
break;
case MACREG_INT_CODE_PS_AWAKE:
lbs_deb_cmd("EVENT: ps awake\n");
/* handle unexpected PS AWAKE event */
if (priv->psstate == PS_STATE_FULL_POWER) {
lbs_deb_cmd(
"EVENT: In FULL POWER mode - ignore PS AWAKE\n");
break;
}
priv->psstate = PS_STATE_AWAKE;
if (priv->needtowakeup) {
/*
* wait for the command processing to finish
* before resuming sending
* priv->needtowakeup will be set to FALSE
* in lbs_ps_wakeup()
*/
lbs_deb_cmd("waking up ...\n");
lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, false);
}
break;
case MACREG_INT_CODE_MIC_ERR_UNICAST:
lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
lbs_send_mic_failureevent(priv, event);
break;
case MACREG_INT_CODE_MIC_ERR_MULTICAST:
lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
lbs_send_mic_failureevent(priv, event);
break;
case MACREG_INT_CODE_MIB_CHANGED:
lbs_deb_cmd("EVENT: MIB CHANGED\n");
break;
case MACREG_INT_CODE_INIT_DONE:
lbs_deb_cmd("EVENT: INIT DONE\n");
break;
case MACREG_INT_CODE_ADHOC_BCN_LOST:
lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
break;
case MACREG_INT_CODE_RSSI_LOW:
netdev_alert(priv->dev, "EVENT: rssi low\n");
break;
case MACREG_INT_CODE_SNR_LOW:
netdev_alert(priv->dev, "EVENT: snr low\n");
break;
case MACREG_INT_CODE_MAX_FAIL:
netdev_alert(priv->dev, "EVENT: max fail\n");
break;
case MACREG_INT_CODE_RSSI_HIGH:
netdev_alert(priv->dev, "EVENT: rssi high\n");
break;
case MACREG_INT_CODE_SNR_HIGH:
netdev_alert(priv->dev, "EVENT: snr high\n");
break;
case MACREG_INT_CODE_MESH_AUTO_STARTED:
/* Ignore spurious autostart events */
netdev_info(priv->dev, "EVENT: MESH_AUTO_STARTED (ignoring)\n");
break;
default:
netdev_alert(priv->dev, "EVENT: unknown event id %d\n", event);
break;
}
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
unsigned long flags;
struct lbs_private *priv = dev->priv;
struct txpd *txpd;
char *p802x_hdr;
uint16_t pkt_len;
int ret;
lbs_deb_enter(LBS_DEB_TX);
#if (ANDROID_POWER_SAVE == 1)
if (priv->deepsleep == false)
lbs_update_ps_timer();
else
{
if (priv->wifi_ps_work_req == 0)
{
printk("Need to wakeup for xmit: ether_proto=%x.\n", skb->protocol);
priv->wifi_ps_work_req = WIFI_PS_PRE_WAKE;
/*
* If no netif_carrier_off, upper layer will try again,
* and this may cause tx timeout and trigger watchdog.
*/
netif_stop_queue(priv->dev);
netif_carrier_off(priv->dev);
queue_delayed_work(priv->work_thread, &priv->ps_work,
msecs_to_jiffies(5));
}
return NETDEV_TX_BUSY;
}
#endif
ret = NETDEV_TX_OK;
/* We need to protect against the queues being restarted before
we get round to stopping them */
spin_lock_irqsave(&priv->driver_lock, flags);
if (priv->surpriseremoved)
goto free;
if (!skb->len || (skb->len > MRVDRV_ETH_TX_PACKET_BUFFER_SIZE)) {
lbs_deb_tx("tx err: skb length %d 0 or > %zd\n",
skb->len, MRVDRV_ETH_TX_PACKET_BUFFER_SIZE);
/* We'll never manage to send this one; drop it and return 'OK' */
dev->stats.tx_dropped++;
dev->stats.tx_errors++;
goto free;
}
netif_stop_queue(priv->dev);
if (priv->tx_pending_len) {
/* This can happen if packets come in on the mesh and eth
device simultaneously -- there's no mutual exclusion on
hard_start_xmit() calls between devices. */
lbs_deb_tx("Packet on %s while busy\n", dev->name);
ret = NETDEV_TX_BUSY;
goto unlock;
}
priv->tx_pending_len = -1;
spin_unlock_irqrestore(&priv->driver_lock, flags);
lbs_deb_hex(LBS_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
txpd = (void *)priv->tx_pending_buf;
memset(txpd, 0, sizeof(struct txpd));
p802x_hdr = skb->data;
pkt_len = skb->len;
/* copy destination address from 802.3 header */
memcpy(txpd->tx_dest_addr_high, p802x_hdr, ETH_ALEN);
txpd->tx_packet_length = cpu_to_le16(pkt_len);
txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
lbs_deb_hex(LBS_DEB_TX, "txpd", (u8 *) &txpd, sizeof(struct txpd));
lbs_deb_hex(LBS_DEB_TX, "Tx Data", (u8 *) p802x_hdr, le16_to_cpu(txpd->tx_packet_length));
memcpy(&txpd[1], p802x_hdr, le16_to_cpu(txpd->tx_packet_length));
spin_lock_irqsave(&priv->driver_lock, flags);
priv->tx_pending_len = pkt_len + sizeof(struct txpd);
lbs_deb_tx("%s lined up packet\n", __func__);
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
dev->trans_start = jiffies;
if (priv->monitormode) {
/* Keep the skb to echo it back once Tx feedback is
received from FW */
skb_orphan(skb);
/* Keep the skb around for when we get feedback */
priv->currenttxskb = skb;
} else {
free:
dev_kfree_skb_any(skb);
}
unlock:
spin_unlock_irqrestore(&priv->driver_lock, flags);
wake_up(&priv->waitq);
lbs_deb_leave_args(LBS_DEB_TX, "ret %d", ret);
return ret;
}
int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
{
uint16_t respcmd, curcmd;
struct cmd_header *resp;
int ret = 0;
unsigned long flags;
uint16_t result;
lbs_deb_enter(LBS_DEB_HOST);
mutex_lock(&priv->lock);
spin_lock_irqsave(&priv->driver_lock, flags);
if (!priv->cur_cmd) {
lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
ret = -1;
spin_unlock_irqrestore(&priv->driver_lock, flags);
goto done;
}
resp = (void *)data;
curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
respcmd = le16_to_cpu(resp->command);
result = le16_to_cpu(resp->result);
lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
respcmd, le16_to_cpu(resp->seqnum), len);
lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
lbs_pr_info("Received CMD_RESP with invalid sequence %d (expected %d)\n",
le16_to_cpu(resp->seqnum), le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
if (respcmd != CMD_RET(curcmd) &&
respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
lbs_pr_info("Invalid CMD_RESP %x to command %x!\n", respcmd, curcmd);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
if (resp->result == cpu_to_le16(0x0004)) {
/* 0x0004 means -EAGAIN. Drop the response, let it time out
and be resubmitted */
lbs_pr_info("Firmware returns DEFER to command %x. Will let it time out...\n",
le16_to_cpu(resp->command));
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
/* Now we got response from FW, cancel the command timer */
del_timer(&priv->command_timer);
priv->cmd_timed_out = 0;
/* Store the response code to cur_cmd_retcode. */
priv->cur_cmd_retcode = result;
if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
u16 action = le16_to_cpu(psmode->action);
lbs_deb_host(
"CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
result, action);
if (result) {
lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
result);
/*
* We should not re-try enter-ps command in
* ad-hoc mode. It takes place in
* lbs_execute_next_command().
*/
if (priv->mode == IW_MODE_ADHOC &&
action == CMD_SUBCMD_ENTER_PS)
priv->psmode = LBS802_11POWERMODECAM;
} else if (action == CMD_SUBCMD_ENTER_PS) {
priv->needtowakeup = 0;
priv->psstate = PS_STATE_AWAKE;
lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
if (priv->connect_status != LBS_CONNECTED) {
/*
* When Deauth Event received before Enter_PS command
* response, We need to wake up the firmware.
*/
lbs_deb_host(
"disconnected, invoking lbs_ps_wakeup\n");
spin_unlock_irqrestore(&priv->driver_lock, flags);
mutex_unlock(&priv->lock);
lbs_ps_wakeup(priv, 0);
mutex_lock(&priv->lock);
spin_lock_irqsave(&priv->driver_lock, flags);
}
} else if (action == CMD_SUBCMD_EXIT_PS) {
priv->needtowakeup = 0;
priv->psstate = PS_STATE_FULL_POWER;
lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
} else {
lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
}
lbs_complete_command(priv, priv->cur_cmd, result);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = 0;
goto done;
}
/* If the command is not successful, cleanup and return failure */
if ((result != 0 || !(respcmd & 0x8000))) {
lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
result, respcmd);
/*
* Handling errors here
*/
switch (respcmd) {
case CMD_RET(CMD_GET_HW_SPEC):
case CMD_RET(CMD_802_11_RESET):
lbs_deb_host("CMD_RESP: reset failed\n");
break;
}
lbs_complete_command(priv, priv->cur_cmd, result);
spin_unlock_irqrestore(&priv->driver_lock, flags);
ret = -1;
goto done;
}
spin_unlock_irqrestore(&priv->driver_lock, flags);
if (priv->cur_cmd && priv->cur_cmd->callback) {
ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
resp);
} else
ret = handle_cmd_response(priv, resp);
spin_lock_irqsave(&priv->driver_lock, flags);
if (priv->cur_cmd) {
/* Clean up and Put current command back to cmdfreeq */
lbs_complete_command(priv, priv->cur_cmd, result);
}
spin_unlock_irqrestore(&priv->driver_lock, flags);
done:
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
return ret;
}
int libertas_process_rx_command(wlan_private * priv)
{
u16 respcmd;
struct cmd_ds_command *resp;
wlan_adapter *adapter = priv->adapter;
int ret = 0;
ulong flags;
u16 result;
lbs_deb_enter(LBS_DEB_HOST);
/* Now we got response from FW, cancel the command timer */
del_timer(&adapter->command_timer);
mutex_lock(&adapter->lock);
spin_lock_irqsave(&adapter->driver_lock, flags);
if (!adapter->cur_cmd) {
lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
ret = -1;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
goto done;
}
resp = (struct cmd_ds_command *)(adapter->cur_cmd->bufvirtualaddr);
respcmd = le16_to_cpu(resp->command);
result = le16_to_cpu(resp->result);
lbs_deb_host("CMD_RESP: response 0x%04x, size %d, jiffies %lu\n",
respcmd, priv->upld_len, jiffies);
lbs_deb_hex(LBS_DEB_HOST, "CMD_RESP", adapter->cur_cmd->bufvirtualaddr,
priv->upld_len);
if (!(respcmd & 0x8000)) {
lbs_deb_host("invalid response!\n");
adapter->cur_cmd_retcode = -1;
__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
adapter->nr_cmd_pending--;
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
ret = -1;
goto done;
}
/* Store the response code to cur_cmd_retcode. */
adapter->cur_cmd_retcode = result;;
if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
struct cmd_ds_802_11_ps_mode *psmode = &resp->params.psmode;
u16 action = le16_to_cpu(psmode->action);
lbs_deb_host(
"CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
result, action);
if (result) {
lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
result);
/*
* We should not re-try enter-ps command in
* ad-hoc mode. It takes place in
* libertas_execute_next_command().
*/
if (adapter->mode == IW_MODE_ADHOC &&
action == CMD_SUBCMD_ENTER_PS)
adapter->psmode = WLAN802_11POWERMODECAM;
} else if (action == CMD_SUBCMD_ENTER_PS) {
adapter->needtowakeup = 0;
adapter->psstate = PS_STATE_AWAKE;
lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
if (adapter->connect_status != LIBERTAS_CONNECTED) {
/*
* When Deauth Event received before Enter_PS command
* response, We need to wake up the firmware.
*/
lbs_deb_host(
"disconnected, invoking libertas_ps_wakeup\n");
spin_unlock_irqrestore(&adapter->driver_lock, flags);
mutex_unlock(&adapter->lock);
libertas_ps_wakeup(priv, 0);
mutex_lock(&adapter->lock);
spin_lock_irqsave(&adapter->driver_lock, flags);
}
} else if (action == CMD_SUBCMD_EXIT_PS) {
adapter->needtowakeup = 0;
adapter->psstate = PS_STATE_FULL_POWER;
lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
} else {
lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
}
__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
adapter->nr_cmd_pending--;
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
ret = 0;
goto done;
}
if (adapter->cur_cmd->cmdflags & CMD_F_HOSTCMD) {
/* Copy the response back to response buffer */
memcpy(adapter->cur_cmd->pdata_buf, resp,
le16_to_cpu(resp->size));
adapter->cur_cmd->cmdflags &= ~CMD_F_HOSTCMD;
}
/* If the command is not successful, cleanup and return failure */
if ((result != 0 || !(respcmd & 0x8000))) {
lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
result, respcmd);
/*
* Handling errors here
*/
switch (respcmd) {
case CMD_RET(CMD_GET_HW_SPEC):
case CMD_RET(CMD_802_11_RESET):
lbs_deb_host("CMD_RESP: reset failed\n");
break;
}
__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
adapter->nr_cmd_pending--;
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
ret = -1;
goto done;
}
spin_unlock_irqrestore(&adapter->driver_lock, flags);
ret = handle_cmd_response(respcmd, resp, priv);
spin_lock_irqsave(&adapter->driver_lock, flags);
if (adapter->cur_cmd) {
/* Clean up and Put current command back to cmdfreeq */
__libertas_cleanup_and_insert_cmd(priv, adapter->cur_cmd);
adapter->nr_cmd_pending--;
WARN_ON(adapter->nr_cmd_pending > 128);
adapter->cur_cmd = NULL;
}
spin_unlock_irqrestore(&adapter->driver_lock, flags);
done:
mutex_unlock(&adapter->lock);
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
return ret;
}