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path: root/drivers/net/wireless/wl12xx/ps.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/ps.c')
-rw-r--r--drivers/net/wireless/wl12xx/ps.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c
deleted file mode 100644
index f28f194ca6fb..000000000000
--- a/drivers/net/wireless/wl12xx/ps.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * This file is part of wl12xx
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Contact: Kalle Valo <kalle.valo@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include "reg.h"
-#include "ps.h"
-#include "spi.h"
-
-#define WL12XX_WAKEUP_TIMEOUT 2000
-
-/* Routines to toggle sleep mode while in ELP */
-void wl12xx_ps_elp_sleep(struct wl12xx *wl)
-{
- if (wl->elp || !wl->psm)
- return;
-
- wl12xx_debug(DEBUG_PSM, "chip to elp");
-
- wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
-
- wl->elp = true;
-}
-
-int wl12xx_ps_elp_wakeup(struct wl12xx *wl)
-{
- unsigned long timeout;
- u32 elp_reg;
-
- if (!wl->elp)
- return 0;
-
- wl12xx_debug(DEBUG_PSM, "waking up chip from elp");
-
- timeout = jiffies + msecs_to_jiffies(WL12XX_WAKEUP_TIMEOUT);
-
- wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
-
- elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
-
- /*
- * FIXME: we should wait for irq from chip but, as a temporary
- * solution to simplify locking, let's poll instead
- */
- while (!(elp_reg & ELPCTRL_WLAN_READY)) {
- if (time_after(jiffies, timeout)) {
- wl12xx_error("elp wakeup timeout");
- return -ETIMEDOUT;
- }
- msleep(1);
- elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
- }
-
- wl12xx_debug(DEBUG_PSM, "wakeup time: %u ms",
- jiffies_to_msecs(jiffies) -
- (jiffies_to_msecs(timeout) - WL12XX_WAKEUP_TIMEOUT));
-
- wl->elp = false;
-
- return 0;
-}
-
-static int wl12xx_ps_set_elp(struct wl12xx *wl, bool enable)
-{
- int ret;
-
- if (enable) {
- wl12xx_debug(DEBUG_PSM, "sleep auth psm/elp");
-
- ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_ELP);
- if (ret < 0)
- return ret;
-
- wl12xx_ps_elp_sleep(wl);
- } else {
- wl12xx_debug(DEBUG_PSM, "sleep auth cam");
-
- /*
- * When the target is in ELP, we can only
- * access the ELP control register. Thus,
- * we have to wake the target up before
- * changing the power authorization.
- */
-
- wl12xx_ps_elp_wakeup(wl);
-
- ret = wl12xx_acx_sleep_auth(wl, WL12XX_PSM_CAM);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-
-int wl12xx_ps_set_mode(struct wl12xx *wl, enum wl12xx_cmd_ps_mode mode)
-{
- int ret;
-
- switch (mode) {
- case STATION_POWER_SAVE_MODE:
- wl12xx_debug(DEBUG_PSM, "entering psm");
- ret = wl12xx_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE);
- if (ret < 0)
- return ret;
-
- ret = wl12xx_ps_set_elp(wl, true);
- if (ret < 0)
- return ret;
-
- wl->psm = 1;
- break;
- case STATION_ACTIVE_MODE:
- default:
- wl12xx_debug(DEBUG_PSM, "leaving psm");
- ret = wl12xx_ps_set_elp(wl, false);
- if (ret < 0)
- return ret;
-
- ret = wl12xx_cmd_ps_mode(wl, STATION_ACTIVE_MODE);
- if (ret < 0)
- return ret;
-
- wl->psm = 0;
- break;
- }
-
- return ret;
-}
-