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path: root/drivers/net/wireless/ti/wlcore/ps.c
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Diffstat (limited to 'drivers/net/wireless/ti/wlcore/ps.c')
-rw-r--r--drivers/net/wireless/ti/wlcore/ps.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/drivers/net/wireless/ti/wlcore/ps.c b/drivers/net/wireless/ti/wlcore/ps.c
index b36133b739cb..9de843d1984b 100644
--- a/drivers/net/wireless/ti/wlcore/ps.c
+++ b/drivers/net/wireless/ti/wlcore/ps.c
@@ -26,152 +26,6 @@
#include "tx.h"
#include "debug.h"
-#define WL1271_WAKEUP_TIMEOUT 500
-
-#define ELP_ENTRY_DELAY 30
-#define ELP_ENTRY_DELAY_FORCE_PS 5
-
-void wl1271_elp_work(struct work_struct *work)
-{
- struct delayed_work *dwork;
- struct wl1271 *wl;
- struct wl12xx_vif *wlvif;
- int ret;
-
- dwork = to_delayed_work(work);
- wl = container_of(dwork, struct wl1271, elp_work);
-
- wl1271_debug(DEBUG_PSM, "elp work");
-
- mutex_lock(&wl->mutex);
-
- if (unlikely(wl->state != WLCORE_STATE_ON))
- goto out;
-
- /* our work might have been already cancelled */
- if (unlikely(!test_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags)))
- goto out;
-
- if (test_bit(WL1271_FLAG_IN_ELP, &wl->flags))
- goto out;
-
- wl12xx_for_each_wlvif(wl, wlvif) {
- if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
- test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
- goto out;
- }
-
- wl1271_debug(DEBUG_PSM, "chip to elp");
- ret = wlcore_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG, ELPCTRL_SLEEP);
- if (ret < 0) {
- wl12xx_queue_recovery_work(wl);
- goto out;
- }
-
- set_bit(WL1271_FLAG_IN_ELP, &wl->flags);
-
-out:
- mutex_unlock(&wl->mutex);
-}
-
-/* Routines to toggle sleep mode while in ELP */
-void wl1271_ps_elp_sleep(struct wl1271 *wl)
-{
- struct wl12xx_vif *wlvif;
- u32 timeout;
-
- /* We do not enter elp sleep in PLT mode */
- if (wl->plt)
- return;
-
- if (wl->sleep_auth != WL1271_PSM_ELP)
- return;
-
- /* we shouldn't get consecutive sleep requests */
- if (WARN_ON(test_and_set_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags)))
- return;
-
- wl12xx_for_each_wlvif(wl, wlvif) {
- if (!test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags) &&
- test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags))
- return;
- }
-
- timeout = wl->conf.conn.forced_ps ?
- ELP_ENTRY_DELAY_FORCE_PS : ELP_ENTRY_DELAY;
- ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
- msecs_to_jiffies(timeout));
-}
-EXPORT_SYMBOL_GPL(wl1271_ps_elp_sleep);
-
-int wl1271_ps_elp_wakeup(struct wl1271 *wl)
-{
- DECLARE_COMPLETION_ONSTACK(compl);
- unsigned long flags;
- int ret;
- unsigned long start_time = jiffies;
- bool pending = false;
-
- /*
- * we might try to wake up even if we didn't go to sleep
- * before (e.g. on boot)
- */
- if (!test_and_clear_bit(WL1271_FLAG_ELP_REQUESTED, &wl->flags))
- return 0;
-
- /* don't cancel_sync as it might contend for a mutex and deadlock */
- cancel_delayed_work(&wl->elp_work);
-
- if (!test_bit(WL1271_FLAG_IN_ELP, &wl->flags))
- return 0;
-
- wl1271_debug(DEBUG_PSM, "waking up chip from elp");
-
- /*
- * The spinlock is required here to synchronize both the work and
- * the completion variable in one entity.
- */
- spin_lock_irqsave(&wl->wl_lock, flags);
- if (test_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags))
- pending = true;
- else
- wl->elp_compl = &compl;
- spin_unlock_irqrestore(&wl->wl_lock, flags);
-
- ret = wlcore_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG, ELPCTRL_WAKE_UP);
- if (ret < 0) {
- wl12xx_queue_recovery_work(wl);
- goto err;
- }
-
- if (!pending) {
- ret = wait_for_completion_timeout(
- &compl, msecs_to_jiffies(WL1271_WAKEUP_TIMEOUT));
- if (ret == 0) {
- wl1271_error("ELP wakeup timeout!");
- wl12xx_queue_recovery_work(wl);
- ret = -ETIMEDOUT;
- goto err;
- }
- }
-
- clear_bit(WL1271_FLAG_IN_ELP, &wl->flags);
-
- wl1271_debug(DEBUG_PSM, "wakeup time: %u ms",
- jiffies_to_msecs(jiffies - start_time));
- goto out;
-
-err:
- spin_lock_irqsave(&wl->wl_lock, flags);
- wl->elp_compl = NULL;
- spin_unlock_irqrestore(&wl->wl_lock, flags);
- return ret;
-
-out:
- return 0;
-}
-EXPORT_SYMBOL_GPL(wl1271_ps_elp_wakeup);
-
int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
enum wl1271_cmd_ps_mode mode)
{