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libertas: remove ps_supported flag, use fwcapinfo 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/libertas/dev.h
View File

@ -260,7 +260,6 @@ struct lbs_private {
u16 psmode; /* Wlan802_11PowermodeCAM=disable
Wlan802_11PowermodeMAX_PSP=enable */
u32 psstate;
char ps_supported;
u8 needtowakeup;
struct assoc_request * pending_assoc_req;

3
drivers/net/wireless/libertas/if_cs.c
View File

@ -933,9 +933,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
goto out3;
}
/* The firmware for the CF card supports powersave */
priv->ps_supported = 1;
ret = 0;
goto out;

3
drivers/net/wireless/libertas/if_sdio.c
View File

@ -1039,9 +1039,6 @@ static int if_sdio_probe(struct sdio_func *func,
if (ret)
goto err_activate_card;
if (priv->fwcapinfo & FW_CAPINFO_PS)
priv->ps_supported = 1;
out:
lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);

1
drivers/net/wireless/libertas/if_spi.c
View File

@ -1118,7 +1118,6 @@ static int __devinit if_spi_probe(struct spi_device *spi)
priv->card = card;
priv->hw_host_to_card = if_spi_host_to_card;
priv->fw_ready = 1;
priv->ps_supported = 1;
/* Initialize interrupt handling stuff. */
card->run_thread = 1;

3
drivers/net/wireless/libertas/if_usb.c
View File

@ -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");
}
}

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

@ -712,7 +712,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->ps_supported) {
if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
if (vwrq->disabled)
return 0;
else