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libertas: fix sleep confirmation 

This fixes an issus that made "iwconfig eth1 power on" non-working.
When we get a "PS sleep" event, we have to confirm this to the firmware.
The confirm happens with a command, but this command is special: the
firmware won't send us a response. if_cs_host_to_card() is setting
priv->dnld_sent anyway, so this variable stayed at DNLD_DATA_SENT and
was never cleared back.

Now I put the special knowledge that the CMD_802_11_PS_MODE with
CMD_SUBCMD_SLEEP_CONFIRMED doesn't need to need a response by directly
clearing the dnld_sent state in lbs_send_confirmsleep().

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Holger Schurig 2008-06-04 11:10:40 +02:00 committed by John W. Linville
parent 507b06d062
commit a01f545040
2 changed files with 5 additions and 2 deletions
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5
drivers/net/wireless/libertas/cmd.c
View File

@ -1842,6 +1842,9 @@ static void lbs_send_confirmsleep(struct lbs_private *priv)
spin_lock_irqsave(&priv->driver_lock, flags);
/* We don't get a response on the sleep-confirmation */
priv->dnld_sent = DNLD_RES_RECEIVED;
/* If nothing to do, go back to sleep (?) */
if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
priv->psstate = PS_STATE_SLEEP;
@ -1904,12 +1907,12 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv)
lbs_deb_enter(LBS_DEB_HOST);
spin_lock_irqsave(&priv->driver_lock, flags);
if (priv->dnld_sent) {
allowed = 0;
lbs_deb_host("dnld_sent was set\n");
}
spin_lock_irqsave(&priv->driver_lock, flags);
/* In-progress command? */
if (priv->cur_cmd) {
allowed = 0;

2
drivers/net/wireless/libertas/main.c
View File

@ -732,8 +732,8 @@ static int lbs_thread(void *data)
lbs_deb_thread("4: currenttxskb %p, dnld_sent %d\n",
priv->currenttxskb, priv->dnld_sent);
spin_lock_irq(&priv->driver_lock);
/* Process any pending command response */
spin_lock_irq(&priv->driver_lock);
resp_idx = priv->resp_idx;
if (priv->resp_len[resp_idx]) {
spin_unlock_irq(&priv->driver_lock);