Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 448 insertions, 0 deletions

diff --git a/drivers/staging/r8188eu/core/rtw_pwrctrl.c b/drivers/staging/r8188eu/core/rtw_pwrctrl.c
new file mode 100644
index 000000000..5290ac36f
--- /dev/null
+++ b/drivers/staging/r8188eu/core/rtw_pwrctrl.c
@@ -0,0 +1,448 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2007 - 2012 Realtek Corporation. */
+
+#define _RTW_PWRCTRL_C_
+
+#include "../include/osdep_service.h"
+#include "../include/drv_types.h"
+#include "../include/osdep_intf.h"
+#include "../include/linux/usb.h"
+
+void ips_enter(struct adapter *padapter)
+{
+	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
+	struct xmit_priv *pxmit_priv = &padapter->xmitpriv;
+
+	if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
+	    pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF)
+		return;
+
+	mutex_lock(&pwrpriv->lock);
+
+	pwrpriv->bips_processing = true;
+
+	/*  syn ips_mode with request */
+	pwrpriv->ips_mode = pwrpriv->ips_mode_req;
+
+	pwrpriv->ips_enter_cnts++;
+	if (rf_off == pwrpriv->change_rfpwrstate) {
+		pwrpriv->bpower_saving = true;
+
+		if (pwrpriv->ips_mode == IPS_LEVEL_2)
+			pwrpriv->bkeepfwalive = true;
+
+		rtw_ips_pwr_down(padapter);
+		pwrpriv->rf_pwrstate = rf_off;
+	}
+	pwrpriv->bips_processing = false;
+
+	mutex_unlock(&pwrpriv->lock);
+}
+
+int ips_leave(struct adapter *padapter)
+{
+	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
+	struct security_priv *psecuritypriv = &padapter->securitypriv;
+	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
+	int result = _SUCCESS;
+	int keyid;
+
+	mutex_lock(&pwrpriv->lock);
+
+	if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
+		pwrpriv->bips_processing = true;
+		pwrpriv->change_rfpwrstate = rf_on;
+		pwrpriv->ips_leave_cnts++;
+
+		result = rtw_ips_pwr_up(padapter);
+		if (result == _SUCCESS) {
+			pwrpriv->rf_pwrstate = rf_on;
+		}
+
+		if ((psecuritypriv->dot11PrivacyAlgrthm == _WEP40_) || (psecuritypriv->dot11PrivacyAlgrthm == _WEP104_)) {
+			set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
+			for (keyid = 0; keyid < 4; keyid++) {
+				if (pmlmepriv->key_mask & BIT(keyid)) {
+					if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
+						result = rtw_set_key(padapter, psecuritypriv, keyid, 1);
+					else
+						result = rtw_set_key(padapter, psecuritypriv, keyid, 0);
+				}
+			}
+		}
+
+		pwrpriv->bips_processing = false;
+
+		pwrpriv->bkeepfwalive = false;
+		pwrpriv->bpower_saving = false;
+	}
+
+	mutex_unlock(&pwrpriv->lock);
+
+	return result;
+}
+
+static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
+{
+	struct adapter *buddy = adapter->pbuddy_adapter;
+	struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
+	struct wifidirect_info	*pwdinfo = &adapter->wdinfo;
+	bool ret = false;
+
+	if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
+		goto exit;
+
+	if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE | WIFI_SITE_MONITOR) ||
+	    check_fwstate(pmlmepriv, WIFI_UNDER_LINKING | WIFI_UNDER_WPS) ||
+	    check_fwstate(pmlmepriv, WIFI_UNDER_WPS) ||
+	    check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
+	    check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE | WIFI_ADHOC_STATE) ||
+	    !rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
+		goto exit;
+
+	/* consider buddy, if exist */
+	if (buddy) {
+		struct mlme_priv *b_pmlmepriv = &buddy->mlmepriv;
+		struct wifidirect_info *b_pwdinfo = &buddy->wdinfo;
+
+		if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE | WIFI_SITE_MONITOR) ||
+		    check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING | WIFI_UNDER_WPS) ||
+		    check_fwstate(b_pmlmepriv, WIFI_AP_STATE) ||
+		    check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE | WIFI_ADHOC_STATE) ||
+		    !rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE))
+			goto exit;
+	}
+	ret = true;
+
+exit:
+	return ret;
+}
+
+void rtw_ps_processor(struct adapter *padapter)
+{
+	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
+
+	pwrpriv->ps_processing = true;
+
+	if (pwrpriv->bips_processing)
+		goto exit;
+
+	if (pwrpriv->ips_mode_req == IPS_NONE)
+		goto exit;
+
+	if (!rtw_pwr_unassociated_idle(padapter))
+		goto exit;
+
+	if (pwrpriv->rf_pwrstate == rf_on) {
+		pwrpriv->change_rfpwrstate = rf_off;
+		ips_enter(padapter);
+	}
+exit:
+	rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
+	pwrpriv->ps_processing = false;
+}
+
+static void pwr_state_check_handler(struct timer_list *t)
+{
+	struct adapter *padapter =
+		from_timer(padapter, t,
+			   pwrctrlpriv.pwr_state_check_timer);
+	rtw_ps_cmd(padapter);
+}
+
+static bool PS_RDY_CHECK(struct adapter *padapter)
+{
+	u32 curr_time, delta_time;
+	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;
+	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
+
+	curr_time = jiffies;
+	delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
+
+	if (delta_time < LPS_DELAY_TIME)
+		return false;
+
+	if (!check_fwstate(pmlmepriv, _FW_LINKED) ||
+	    check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) ||
+	    check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
+	    check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
+	    check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))
+		return false;
+	if (pwrpriv->bInSuspend)
+		return false;
+	if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X &&
+	    !padapter->securitypriv.binstallGrpkey)
+		return false;
+	return true;
+}
+
+void rtw_set_firmware_ps_mode(struct adapter *adapter, u8 mode)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
+
+	/* Force leave RF low power mode for 1T1R to prevent
+	 * conflicting setting in firmware power saving sequence.
+	 */
+	if (mode != PS_MODE_ACTIVE)
+		ODM_RF_Saving(odmpriv, true);
+	rtl8188e_set_FwPwrMode_cmd(adapter, mode);
+}
+
+void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
+{
+	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
+	struct wifidirect_info	*pwdinfo = &padapter->wdinfo;
+
+	if (ps_mode > PM_Card_Disable)
+		return;
+
+	if (pwrpriv->pwr_mode == ps_mode) {
+		if (ps_mode == PS_MODE_ACTIVE)
+			return;
+
+		if ((pwrpriv->smart_ps == smart_ps) &&
+		    (pwrpriv->bcn_ant_mode == bcn_ant_mode))
+			return;
+	}
+
+	if (ps_mode == PS_MODE_ACTIVE) {
+		if (pwdinfo->opp_ps == 0) {
+			pwrpriv->pwr_mode = ps_mode;
+			rtw_set_firmware_ps_mode(padapter, ps_mode);
+			pwrpriv->bFwCurrentInPSMode = false;
+		}
+	} else {
+		if (PS_RDY_CHECK(padapter)) {
+			pwrpriv->bFwCurrentInPSMode = true;
+			pwrpriv->pwr_mode = ps_mode;
+			pwrpriv->smart_ps = smart_ps;
+			pwrpriv->bcn_ant_mode = bcn_ant_mode;
+			rtw_set_firmware_ps_mode(padapter, ps_mode);
+
+			/*  Set CTWindow after LPS */
+			if (pwdinfo->opp_ps == 1)
+				p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 0);
+		}
+	}
+}
+
+static bool lps_rf_on(struct adapter *adapter)
+{
+	int res;
+	u32 reg;
+
+	/* When we halt NIC, we should check if FW LPS is leave. */
+	if (adapter->pwrctrlpriv.rf_pwrstate == rf_off) {
+		/*  If it is in HW/SW Radio OFF or IPS state, we do not check Fw LPS Leave, */
+		/*  because Fw is unload. */
+		return true;
+	}
+
+	res = rtw_read32(adapter, REG_RCR, &reg);
+	if (res)
+		return false;
+
+	if (reg & 0x00070000)
+		return false;
+
+	return true;
+}
+
+/*
+ * Return:
+ *	0:	Leave OK
+ *	-1:	Timeout
+ *	-2:	Other error
+ */
+static s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(delay_ms);
+	s32 err = 0;
+
+	while (1) {
+		if (lps_rf_on(padapter))
+			break;
+
+		if (padapter->bSurpriseRemoved) {
+			err = -2;
+			break;
+		}
+
+		if (time_after(jiffies, timeout)) {
+			err = -1;
+			break;
+		}
+		mdelay(1);
+	}
+
+	return err;
+}
+
+/*  */
+/*	Description: */
+/*		Enter the leisure power save mode. */
+/*  */
+void LPS_Enter(struct adapter *padapter)
+{
+	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;
+
+	if (!PS_RDY_CHECK(padapter))
+		return;
+
+	if (pwrpriv->bLeisurePs) {
+		/*  Idle for a while if we connect to AP a while ago. */
+		if (pwrpriv->LpsIdleCount >= 2) { /*   4 Sec */
+			if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
+				pwrpriv->bpower_saving = true;
+				/* For Tenda W311R IOT issue */
+				rtw_set_ps_mode(padapter, pwrpriv->power_mgnt,
+						pwrpriv->smart_ps, 0x40);
+			}
+		} else {
+			pwrpriv->LpsIdleCount++;
+		}
+	}
+
+}
+
+#define LPS_LEAVE_TIMEOUT_MS 100
+
+/*	Description: */
+/*		Leave the leisure power save mode. */
+void LPS_Leave(struct adapter *padapter)
+{
+	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;
+
+	if (pwrpriv->bLeisurePs) {
+		if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
+			rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0x40);
+
+			if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
+				LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
+		}
+	}
+
+	pwrpriv->bpower_saving = false;
+
+}
+
+/*  */
+/*  Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
+/*  Move code to function by tynli. 2010.03.26. */
+/*  */
+void LeaveAllPowerSaveMode(struct adapter *Adapter)
+{
+	struct mlme_priv	*pmlmepriv = &Adapter->mlmepriv;
+	u8	enqueue = 0;
+
+	if (check_fwstate(pmlmepriv, _FW_LINKED)) { /* connect */
+		p2p_ps_wk_cmd(Adapter, P2P_PS_DISABLE, enqueue);
+
+		rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
+	}
+
+}
+
+void rtw_init_pwrctrl_priv(struct adapter *padapter)
+{
+	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
+
+	mutex_init(&pwrctrlpriv->lock);
+	pwrctrlpriv->rf_pwrstate = rf_on;
+	pwrctrlpriv->ips_enter_cnts = 0;
+	pwrctrlpriv->ips_leave_cnts = 0;
+	pwrctrlpriv->bips_processing = false;
+
+	pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
+	pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
+
+	pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
+	pwrctrlpriv->bInSuspend = false;
+	pwrctrlpriv->bkeepfwalive = false;
+
+	pwrctrlpriv->LpsIdleCount = 0;
+	pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
+	pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
+
+	pwrctrlpriv->bFwCurrentInPSMode = false;
+
+	pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
+	pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
+	pwrctrlpriv->bcn_ant_mode = 0;
+
+	timer_setup(&pwrctrlpriv->pwr_state_check_timer, pwr_state_check_handler, 0);
+}
+
+/* Wake the NIC up from: 1)IPS 2)USB autosuspend */
+int rtw_pwr_wakeup(struct adapter *padapter)
+{
+	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
+	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
+	unsigned long timeout = jiffies + msecs_to_jiffies(3000);
+	unsigned long deny_time;
+	int ret;
+
+	while (pwrpriv->ps_processing && time_before(jiffies, timeout))
+		msleep(10);
+
+	/* I think this should be check in IPS, LPS, autosuspend functions... */
+	/* Below goto is a success path taken for already linked devices */
+	ret = 0;
+	if (check_fwstate(pmlmepriv, _FW_LINKED))
+		goto exit;
+
+	if (pwrpriv->rf_pwrstate == rf_off && ips_leave(padapter) == _FAIL) {
+		ret = -ENOMEM;
+		goto exit;
+	}
+
+	if (padapter->bDriverStopped || !padapter->bup || !padapter->hw_init_completed) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+exit:
+	deny_time = jiffies + msecs_to_jiffies(RTW_PWR_STATE_CHK_INTERVAL);
+	if (time_before(pwrpriv->ips_deny_time, deny_time))
+		pwrpriv->ips_deny_time = deny_time;
+	return ret;
+}
+
+int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
+{
+	int	ret = 0;
+	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
+
+	if (mode < PS_MODE_NUM) {
+		if (pwrctrlpriv->power_mgnt != mode) {
+			if (mode == PS_MODE_ACTIVE)
+				LeaveAllPowerSaveMode(padapter);
+			else
+				pwrctrlpriv->LpsIdleCount = 2;
+			pwrctrlpriv->power_mgnt = mode;
+			pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
+		}
+	} else {
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
+{
+	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
+
+	if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
+		rtw_ips_mode_req(pwrctrlpriv, mode);
+		return 0;
+	} else if (mode == IPS_NONE) {
+		rtw_ips_mode_req(pwrctrlpriv, mode);
+		if ((padapter->bSurpriseRemoved == 0) && rtw_pwr_wakeup(padapter))
+			return -EFAULT;
+	} else {
+		return -EINVAL;
+	}
+	return 0;
+}