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libertas: remove ps_supported flag, use fwcapinfo

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Power save support depends on the firmware capabilities rather than the
card's hardware interface.  Use the FW_CAPINFO_PS bit in the firmware
capabilities mask throughout the driver in place of the redundant
ps_supported flag and don't make decisions about PS support in the
interface drivers (with the exception of a special case in the USB
driver).

V2: put the USB special case in the right place.

Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Andrey Yurovsky
2009-06-16 13:20:01 -07:00
committed by John W. Linville
parent f0f3d388ba
commit e0d6133cba
6 changed files with 3 additions and 10 deletions
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3
drivers/net/wireless/libertas/if_usb.c
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@@ -181,13 +181,14 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
wake_method.action = cpu_to_le16(CMD_ACT_GET);
if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
lbs_pr_info("Firmware does not seem to support PS mode\n");
priv->fwcapinfo &= ~FW_CAPINFO_PS;
} else {
if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
priv->ps_supported = 1;
} else {
/* The versions which boot up this way don't seem to
work even if we set it to the command interrupt */
priv->fwcapinfo &= ~FW_CAPINFO_PS;
lbs_pr_info("Firmware doesn't wake via command interrupt; disabling PS mode\n");
}
}