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wl12xx: couple role_start_dev with roc 

Device role is always started along with ROC.
Couple them together by introducing new wl12xx_start_dev
and wl12xx_stop_dev functions.

By using these functions, we solve a bug that occured during
channel switch - we started the dev role on one channel, and
ROCed on a different one.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Eliad Peller 2011-10-11 11:55:44 +02:00 committed by Luciano Coelho
parent 0f1680147c
commit 679a673414
5 changed files with 65 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/net/wireless/wl12xx/cmd.c
View File

@ -468,7 +468,8 @@ static int wl12xx_get_new_session_id(struct wl1271 *wl,
return wlvif->session_counter;
}
int wl12xx_cmd_role_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_start *cmd;
int ret;
@ -516,7 +517,8 @@ out:
return ret;
}
int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
struct wl12xx_cmd_role_stop *cmd;
int ret;
@ -1776,3 +1778,50 @@ out_free:
out:
return ret;
}
/* start dev role and roc on its channel */
int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
int ret;
if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
wlvif->bss_type == BSS_TYPE_IBSS)))
return -EINVAL;
ret = wl12xx_cmd_role_start_dev(wl, wlvif);
if (ret < 0)
goto out;
ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
if (ret < 0)
goto out_stop;
return 0;
out_stop:
wl12xx_cmd_role_stop_dev(wl, wlvif);
out:
return ret;
}
/* croc dev hlid, and stop the role */
int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
{
int ret;
if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
wlvif->bss_type == BSS_TYPE_IBSS)))
return -EINVAL;
if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
ret = wl12xx_croc(wl, wlvif->dev_role_id);
if (ret < 0)
goto out;
}
ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
if (ret < 0)
goto out;
out:
return ret;
}

4
drivers/net/wireless/wl12xx/cmd.h
View File

@ -39,13 +39,13 @@ int wl1271_cmd_ext_radio_parms(struct wl1271 *wl);
int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
u8 *role_id);
int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id);
int wl12xx_cmd_role_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif);
int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer);
int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len);
int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len);

40
drivers/net/wireless/wl12xx/main.c
View File

@ -2429,11 +2429,7 @@ static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
if (idle) {
/* no need to croc if we weren't busy (e.g. during boot) */
if (wl12xx_is_roc(wl)) {
ret = wl12xx_croc(wl, wlvif->dev_role_id);
if (ret < 0)
goto out;
ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
ret = wl12xx_stop_dev(wl, wlvif);
if (ret < 0)
goto out;
}
@ -2455,11 +2451,7 @@ static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
ieee80211_sched_scan_stopped(wl->hw);
}
ret = wl12xx_cmd_role_start_dev(wl, wlvif);
if (ret < 0)
goto out;
ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
ret = wl12xx_start_dev(wl, wlvif);
if (ret < 0)
goto out;
clear_bit(WL1271_FLAG_IDLE, &wl->flags);
@ -2525,16 +2517,13 @@ static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
*/
if (wl12xx_is_roc(wl) &&
!(conf->flags & IEEE80211_CONF_IDLE)) {
ret = wl12xx_croc(wl,
wlvif->dev_role_id);
ret = wl12xx_stop_dev(wl, wlvif);
if (ret < 0)
return ret;
ret = wl12xx_roc(wl, wlvif,
wlvif->dev_role_id);
ret = wl12xx_start_dev(wl, wlvif);
if (ret < 0)
wl1271_warning("roc failed %d",
ret);
return ret;
}
}
}
@ -3087,8 +3076,7 @@ static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
ret = -EBUSY;
goto out_sleep;
}
wl12xx_croc(wl, wlvif->dev_role_id);
wl12xx_cmd_role_stop_dev(wl, wlvif);
wl12xx_stop_dev(wl, wlvif);
}
ret = wl1271_scan(hw->priv, vif, ssid, len, req);
@ -3599,8 +3587,7 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
if (test_and_clear_bit(WLVIF_FLAG_IBSS_JOINED,
&wlvif->flags)) {
wl1271_unjoin(wl, wlvif);
wl12xx_cmd_role_start_dev(wl, wlvif);
wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
wl12xx_start_dev(wl, wlvif);
}
}
}
@ -3776,11 +3763,8 @@ sta_not_found:
}
wl1271_unjoin(wl, wlvif);
if (!(conf_flags & IEEE80211_CONF_IDLE)) {
wl12xx_cmd_role_start_dev(wl, wlvif);
wl12xx_roc(wl, wlvif,
wlvif->dev_role_id);
}
if (!(conf_flags & IEEE80211_CONF_IDLE))
wl12xx_start_dev(wl, wlvif);
}
}
}
@ -3859,11 +3843,7 @@ sta_not_found:
* STA role). TODO: make it better.
*/
if (wlvif->dev_role_id != WL12XX_INVALID_ROLE_ID) {
ret = wl12xx_croc(wl, wlvif->dev_role_id);
if (ret < 0)
goto out;
ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
ret = wl12xx_stop_dev(wl, wlvif);
if (ret < 0)
goto out;
}

3
drivers/net/wireless/wl12xx/scan.c
View File

@ -77,8 +77,7 @@ void wl1271_scan_complete_work(struct work_struct *work)
(is_ibss && !test_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags))) &&
!test_bit(wlvif->dev_role_id, wl->roc_map)) {
/* restore remain on channel */
wl12xx_cmd_role_start_dev(wl, wlvif);
wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
wl12xx_start_dev(wl, wlvif);
}
wl1271_ps_elp_sleep(wl);

6
drivers/net/wireless/wl12xx/tx.c
View File

@ -99,11 +99,7 @@ static int wl1271_tx_update_filters(struct wl1271 *wl,
goto out;
wl1271_debug(DEBUG_CMD, "starting device role for roaming");
ret = wl12xx_cmd_role_start_dev(wl, wlvif);
if (ret < 0)
goto out;
ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
ret = wl12xx_start_dev(wl, wlvif);
if (ret < 0)
goto out;
out: