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libertas: Added support for host sleep feature

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Existing "ethtool -s ethX wol X" command configures hostsleep
parameters, but those are activated only during suspend/resume,
there is no way to configure host sleep without actual suspend.

This patch adds debugfs command to enable/disable host sleep based on
already configured host sleep parameters using wol command.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar
2010-07-08 06:43:48 +05:30
committed by John W. Linville
parent 643f82e32f
commit 1311843c58
5 changed files with 142 additions and 33 deletions
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61
drivers/net/wireless/libertas/cmd.c
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@@ -181,7 +181,7 @@ static int lbs_ret_host_sleep_cfg(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp)
{
lbs_deb_enter(LBS_DEB_CMD);
if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
if (priv->is_host_sleep_activated) {
priv->is_host_sleep_configured = 0;
if (priv->psstate == PS_STATE_FULL_POWER) {
priv->is_host_sleep_activated = 0;
@@ -361,6 +361,65 @@ int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
return ret;
}
static int lbs_ret_host_sleep_activate(struct lbs_private *priv,
unsigned long dummy,
struct cmd_header *cmd)
{
lbs_deb_enter(LBS_DEB_FW);
priv->is_host_sleep_activated = 1;
wake_up_interruptible(&priv->host_sleep_q);
lbs_deb_leave(LBS_DEB_FW);
return 0;
}
int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep)
{
struct cmd_header cmd;
int ret = 0;
uint32_t criteria = EHS_REMOVE_WAKEUP;
lbs_deb_enter(LBS_DEB_CMD);
if (host_sleep) {
if (priv->is_host_sleep_activated != 1) {
memset(&cmd, 0, sizeof(cmd));
ret = lbs_host_sleep_cfg(priv, priv->wol_criteria,
(struct wol_config *)NULL);
if (ret) {
lbs_pr_info("Host sleep configuration failed: "
"%d\n", ret);
return ret;
}
if (priv->psstate == PS_STATE_FULL_POWER) {
ret = __lbs_cmd(priv,
CMD_802_11_HOST_SLEEP_ACTIVATE,
&cmd,
sizeof(cmd),
lbs_ret_host_sleep_activate, 0);
if (ret)
lbs_pr_info("HOST_SLEEP_ACTIVATE "
"failed: %d\n", ret);
}
if (!wait_event_interruptible_timeout(
priv->host_sleep_q,
priv->is_host_sleep_activated,
(10 * HZ))) {
lbs_pr_err("host_sleep_q: timer expired\n");
ret = -1;
}
} else {
lbs_pr_err("host sleep: already enabled\n");
}
} else {
if (priv->is_host_sleep_activated)
ret = lbs_host_sleep_cfg(priv, criteria,
(struct wol_config *)NULL);
}
return ret;
}
/**
* @brief Set an SNMP MIB value
*