#include <linux/moduleparam.h>
#include <linux/delay.h>
-#include <linux/freezer.h>
#include <linux/etherdevice.h>
#include <linux/netdevice.h>
#include <linux/if_arp.h>
static void lbs_remove_rtap(struct lbs_private *priv);
static int lbs_add_mesh(struct lbs_private *priv);
static void lbs_remove_mesh(struct lbs_private *priv);
-
+
/**
* Get function for sysfs attribute rtap
if (enable == !!priv->mesh_dev)
return count;
- ret = lbs_mesh_config(priv, enable);
+ ret = lbs_mesh_config(priv, enable, priv->curbssparams.channel);
if (ret)
return ret;
-
+
if (enable)
lbs_add_mesh(priv);
else
netif_carrier_on(dev);
} else {
priv->infra_open = 1;
-
+
if (priv->connect_status == LBS_CONNECTED)
netif_carrier_on(dev);
else
netif_stop_queue(dev);
netif_carrier_off(dev);
-
+
spin_unlock_irq(&priv->driver_lock);
return 0;
}
priv->infra_open = 0;
netif_stop_queue(dev);
-
+
spin_unlock_irq(&priv->driver_lock);
return 0;
}
to kick it somehow? */
lbs_host_to_card_done(priv);
+ /* More often than not, this actually happens because the
+ firmware has crapped itself -- rather than just a very
+ busy medium. So send a harmless command, and if/when
+ _that_ times out, we'll kick it in the head. */
+ lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
+ 0, 0, NULL);
+
lbs_deb_leave(LBS_DEB_TX);
}
priv->dnld_sent = DNLD_RES_RECEIVED;
/* Wake main thread if commands are pending */
- if (!priv->cur_cmd)
+ if (!priv->cur_cmd || priv->tx_pending_len > 0)
wake_up_interruptible(&priv->waitq);
- /* Don't wake netif queues if we're in monitor mode and
- a TX packet is already pending, or if there are commands
- queued to be sent. */
- if (!priv->currenttxskb && list_empty(&priv->cmdpendingq)) {
- if (priv->dev && priv->connect_status == LBS_CONNECTED)
- netif_wake_queue(priv->dev);
-
- if (priv->mesh_dev && priv->mesh_connect_status == LBS_CONNECTED)
- netif_wake_queue(priv->mesh_dev);
- }
spin_unlock_irqrestore(&priv->driver_lock, flags);
}
EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
init_waitqueue_entry(&wait, current);
- set_freezable();
-
for (;;) {
int shouldsleep;
set_current_state(TASK_INTERRUPTIBLE);
spin_lock_irq(&priv->driver_lock);
- if (priv->surpriseremoved)
+ if (kthread_should_stop())
shouldsleep = 0; /* Bye */
+ else if (priv->surpriseremoved)
+ shouldsleep = 1; /* We need to wait until we're _told_ to die */
else if (priv->psstate == PS_STATE_SLEEP)
shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */
else if (priv->intcounter)
shouldsleep = 0; /* Interrupt pending. Deal with it now */
+ else if (priv->cmd_timed_out)
+ shouldsleep = 0; /* Command timed out. Recover */
else if (!priv->fw_ready)
shouldsleep = 1; /* Firmware not ready. We're waiting for it */
else if (priv->dnld_sent)
set_current_state(TASK_RUNNING);
remove_wait_queue(&priv->waitq, &wait);
- try_to_freeze();
lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
priv->intcounter, priv->currenttxskb, priv->dnld_sent);
- if (kthread_should_stop() || priv->surpriseremoved) {
- lbs_deb_thread("main-thread: break from main thread: surpriseremoved=0x%x\n",
- priv->surpriseremoved);
+ if (kthread_should_stop()) {
+ lbs_deb_thread("main-thread: break from main thread\n");
break;
}
+ if (priv->surpriseremoved) {
+ lbs_deb_thread("adapter removed; waiting to die...\n");
+ continue;
+ }
spin_lock_irq(&priv->driver_lock);
spin_lock_irq(&priv->driver_lock);
}
+ if (priv->cmd_timed_out && priv->cur_cmd) {
+ struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
+
+ if (++priv->nr_retries > 10) {
+ lbs_pr_info("Excessive timeouts submitting command %x\n",
+ le16_to_cpu(cmdnode->cmdbuf->command));
+ lbs_complete_command(priv, cmdnode, -ETIMEDOUT);
+ priv->nr_retries = 0;
+ } else {
+ priv->cur_cmd = NULL;
+ lbs_pr_info("requeueing command %x due to timeout (#%d)\n",
+ le16_to_cpu(cmdnode->cmdbuf->command), priv->nr_retries);
+
+ /* Stick it back at the _top_ of the pending queue
+ for immediate resubmission */
+ list_add(&cmdnode->list, &priv->cmdpendingq);
+ }
+ }
+ priv->cmd_timed_out = 0;
+
/* Any Card Event */
if (priv->hisregcpy & MRVDRV_CARDEVENT) {
lbs_deb_thread("main-thread: Card Event Activity\n");
return 0;
}
+static int lbs_suspend_callback(struct lbs_private *priv, unsigned long dummy,
+ struct cmd_header *cmd)
+{
+ lbs_deb_fw("HOST_SLEEP_ACTIVATE succeeded\n");
+
+ netif_device_detach(priv->dev);
+ if (priv->mesh_dev)
+ netif_device_detach(priv->mesh_dev);
+
+ priv->fw_ready = 0;
+ return 0;
+}
+
+
+int lbs_suspend(struct lbs_private *priv)
+{
+ struct cmd_header cmd;
+ int ret;
+
+ if (priv->wol_criteria == 0xffffffff) {
+ lbs_pr_info("Suspend attempt without configuring wake params!\n");
+ return -EINVAL;
+ }
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_ACTIVATE, &cmd,
+ sizeof(cmd), lbs_suspend_callback, 0);
+ if (ret)
+ lbs_pr_info("HOST_SLEEP_ACTIVATE failed: %d\n", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lbs_suspend);
+
+int lbs_resume(struct lbs_private *priv)
+{
+ priv->fw_ready = 1;
+
+ /* Firmware doesn't seem to give us RX packets any more
+ until we send it some command. Might as well update */
+ lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
+ 0, 0, NULL);
+
+ netif_device_attach(priv->dev);
+ if (priv->mesh_dev)
+ netif_device_attach(priv->mesh_dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(lbs_resume);
+
/**
* @brief This function downloads firmware image, gets
* HW spec from firmware and set basic parameters to
static void command_timer_fn(unsigned long data)
{
struct lbs_private *priv = (struct lbs_private *)data;
- struct cmd_ctrl_node *node;
unsigned long flags;
- node = priv->cur_cmd;
- if (node == NULL) {
- lbs_deb_fw("ptempnode empty\n");
- return;
- }
+ spin_lock_irqsave(&priv->driver_lock, flags);
- if (!node->cmdbuf) {
- lbs_deb_fw("cmd is NULL\n");
- return;
+ if (!priv->cur_cmd) {
+ lbs_pr_info("Command timer expired; no pending command\n");
+ goto out;
}
- lbs_deb_fw("command_timer_fn fired, cmd %x\n", node->cmdbuf->command);
-
- if (!priv->fw_ready)
- return;
-
- spin_lock_irqsave(&priv->driver_lock, flags);
- priv->cur_cmd = NULL;
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
- lbs_deb_fw("re-sending same command because of timeout\n");
- lbs_queue_cmd(priv, node, 0);
+ lbs_pr_info("Command %x timed out\n", le16_to_cpu(priv->cur_cmd->cmdbuf->command));
+ priv->cmd_timed_out = 1;
wake_up_interruptible(&priv->waitq);
-
- return;
+ out:
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
}
static int lbs_init_adapter(struct lbs_private *priv)
sprintf(priv->mesh_ssid, "mesh");
priv->mesh_ssid_len = 4;
+ priv->wol_criteria = 0xffffffff;
+ priv->wol_gpio = 0xff;
+
goto done;
err_init_adapter:
}
if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
lbs_pr_err("cannot register lbs_rtap attribute\n");
- if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
- lbs_pr_err("cannot register lbs_mesh attribute\n");
+
+ /* 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 */
+
+ lbs_update_channel(priv);
+ priv->mesh_tlv = 0x100 + 291;
+ if (lbs_mesh_config(priv, 1, priv->curbssparams.channel)) {
+ priv->mesh_tlv = 0x100 + 37;
+ if (lbs_mesh_config(priv, 1, priv->curbssparams.channel))
+ priv->mesh_tlv = 0;
+ }
+ if (priv->mesh_tlv) {
+ lbs_add_mesh(priv);
+
+ if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
+ lbs_pr_err("cannot register lbs_mesh attribute\n");
+ }
lbs_debugfs_init_one(priv, dev);
lbs_debugfs_remove_one(priv);
device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
- device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
+ if (priv->mesh_tlv)
+ device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
/* Flush pending command nodes */
spin_lock_irqsave(&priv->driver_lock, flags);
list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
+ cmdnode->result = -ENOENT;
cmdnode->cmdwaitqwoken = 1;
wake_up_interruptible(&cmdnode->cmdwait_q);
}
lbs_deb_thread("lbs_interrupt: intcounter=%d\n", priv->intcounter);
- if (!spin_trylock(&priv->driver_lock)) {
- spin_unlock(&priv->driver_lock);
- printk(KERN_CRIT "%s called without driver_lock held\n", __func__);
- WARN_ON(1);
- }
-
priv->intcounter++;
if (priv->psstate == PS_STATE_SLEEP)
projects / openwrt.git / blobdiff