mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
9be550ee43
This patch is preparation for following patch for error handling refactoring. flush_scheduled_work() takes (wq_completion)events lock and it can lead to deadlock when r871xu_dev_remove() is called from workqueue. To avoid deadlock sutiation we can change flush_scheduled_work() call to flush_work() call for all possibly scheduled works in this driver, since next patch adds device_release_driver() in case of fw load failure. Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/6e028b4c457eeb7156c76c6ea3cdb3cb0207c7e1.1626895918.git.paskripkin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
|
|
*
|
|
* Modifications for inclusion into the Linux staging tree are
|
|
* Copyright(c) 2010 Larry Finger. All rights reserved.
|
|
*
|
|
* Contact information:
|
|
* WLAN FAE <wlanfae@realtek.com>
|
|
* Larry Finger <Larry.Finger@lwfinger.net>
|
|
*
|
|
******************************************************************************/
|
|
#ifndef __RTL871X_PWRCTRL_H_
|
|
#define __RTL871X_PWRCTRL_H_
|
|
|
|
#include "osdep_service.h"
|
|
#include "drv_types.h"
|
|
|
|
#define CMD_ALIVE BIT(2)
|
|
|
|
enum Power_Mgnt {
|
|
PS_MODE_ACTIVE = 0,
|
|
PS_MODE_MIN,
|
|
PS_MODE_MAX,
|
|
PS_MODE_DTIM,
|
|
PS_MODE_VOIP,
|
|
PS_MODE_UAPSD_WMM,
|
|
PS_MODE_UAPSD,
|
|
PS_MODE_IBSS,
|
|
PS_MODE_WWLAN,
|
|
PM_Radio_Off,
|
|
PM_Card_Disable,
|
|
PS_MODE_NUM
|
|
};
|
|
|
|
/*
|
|
* BIT[2:0] = HW state
|
|
* BIT[3] = Protocol PS state, 0: register active state,
|
|
* 1: register sleep state
|
|
* BIT[4] = sub-state
|
|
*/
|
|
|
|
#define PS_DPS BIT(0)
|
|
#define PS_LCLK (PS_DPS)
|
|
#define PS_RF_OFF BIT(1)
|
|
#define PS_ALL_ON BIT(2)
|
|
#define PS_ST_ACTIVE BIT(3)
|
|
#define PS_LP BIT(4) /* low performance */
|
|
|
|
#define PS_STATE_MASK (0x0F)
|
|
#define PS_STATE_HW_MASK (0x07)
|
|
#define PS_SEQ_MASK (0xc0)
|
|
|
|
#define PS_STATE(x) (PS_STATE_MASK & (x))
|
|
#define PS_STATE_HW(x) (PS_STATE_HW_MASK & (x))
|
|
#define PS_SEQ(x) (PS_SEQ_MASK & (x))
|
|
|
|
#define PS_STATE_S0 (PS_DPS)
|
|
#define PS_STATE_S1 (PS_LCLK)
|
|
#define PS_STATE_S2 (PS_RF_OFF)
|
|
#define PS_STATE_S3 (PS_ALL_ON)
|
|
#define PS_STATE_S4 ((PS_ST_ACTIVE) | (PS_ALL_ON))
|
|
|
|
#define PS_IS_RF_ON(x) ((x) & (PS_ALL_ON))
|
|
#define PS_IS_ACTIVE(x) ((x) & (PS_ST_ACTIVE))
|
|
#define CLR_PS_STATE(x) ((x) = ((x) & (0xF0)))
|
|
|
|
struct reportpwrstate_parm {
|
|
unsigned char mode;
|
|
unsigned char state; /* the CPWM value */
|
|
unsigned short rsvd;
|
|
};
|
|
|
|
struct pwrctrl_priv {
|
|
struct mutex mutex_lock;
|
|
/*volatile*/ u8 rpwm; /* requested power state for fw */
|
|
/* fw current power state. updated when 1. read from HCPWM or
|
|
* 2. driver lowers power level
|
|
*/
|
|
/*volatile*/ u8 cpwm;
|
|
/*volatile*/ u8 tog; /* toggling */
|
|
/*volatile*/ u8 cpwm_tog; /* toggling */
|
|
/*volatile*/ u8 tgt_rpwm; /* wanted power state */
|
|
uint pwr_mode;
|
|
uint smart_ps;
|
|
uint alives;
|
|
uint ImrContent; /* used to store original imr. */
|
|
uint bSleep; /* sleep -> active is different from active -> sleep. */
|
|
|
|
struct work_struct SetPSModeWorkItem;
|
|
struct work_struct rpwm_workitem;
|
|
struct timer_list rpwm_check_timer;
|
|
u8 rpwm_retry;
|
|
uint bSetPSModeWorkItemInProgress;
|
|
|
|
spinlock_t pnp_pwr_mgnt_lock;
|
|
s32 pnp_current_pwr_state;
|
|
u8 pnp_bstop_trx;
|
|
u8 pnp_wwirp_pending;
|
|
};
|
|
|
|
void r8712_init_pwrctrl_priv(struct _adapter *adapter);
|
|
int r8712_register_cmd_alive(struct _adapter *padapter);
|
|
void r8712_unregister_cmd_alive(struct _adapter *padapter);
|
|
void r8712_cpwm_int_hdl(struct _adapter *padapter,
|
|
struct reportpwrstate_parm *preportpwrstate);
|
|
void r8712_set_ps_mode(struct _adapter *padapter, uint ps_mode,
|
|
uint smart_ps);
|
|
void r8712_set_rpwm(struct _adapter *padapter, u8 val8);
|
|
void r8712_flush_rwctrl_works(struct _adapter *padapter);
|
|
|
|
#endif /* __RTL871X_PWRCTRL_H_ */
|