Commit f5ac2b9e authored by Bing Zhao's avatar Bing Zhao Committed by John W. Linville
Browse files

libertas: fix power save issue in libertas_sdio module



The problem: "iwconfig ethX power on" returns error

The cause: "ps_supported" flag was never set for SD8385/8686

The fix: check firmware capabilities returned by GET_HW_SPEC command.
Set "ps_supported" to 1 if FW_CAPINFO_PS bit is on. This fix applies
to SDIO interface only.
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Acked-by: default avatarDan Williams <dcbw@redhat.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent f11c179e
......@@ -265,6 +265,7 @@ static inline void lbs_deb_hex(unsigned int grp, const char *prompt, u8 *buf, in
#define CMD_F_HOSTCMD (1 << 0)
#define FW_CAPINFO_WPA (1 << 0)
#define FW_CAPINFO_PS (1 << 1)
#define FW_CAPINFO_FIRMWARE_UPGRADE (1 << 13)
#define FW_CAPINFO_BOOT2_UPGRADE (1<<14)
#define FW_CAPINFO_PERSISTENT_CONFIG (1<<15)
......
......@@ -209,6 +209,9 @@ static int if_sdio_handle_event(struct if_sdio_card *card,
event = sdio_readb(card->func, IF_SDIO_EVENT, &ret);
if (ret)
goto out;
/* right shift 3 bits to get the event id */
event >>= 3;
} else {
if (size < 4) {
lbs_deb_sdio("event packet too small (%d bytes)\n",
......@@ -921,6 +924,9 @@ 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);
......
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