staging: r8712u: Add the new driver to the mainline kernel

This code is for a completely new version of the Realtek 8192 USB devices
such as the D-Link DWA-130. The Realtek code, which was originally for
Linux, Windows XP and Windows CE, has been stripped of all code not needed
for Linux. In addition, only one additional configuration variable, which
enables AP mode, remains.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Tested-by: Frederic Leroy <fredo@starox.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl871x_pwrctrl.h b/drivers/staging/rtl8712/rtl871x_pwrctrl.h
new file mode 100644
index 0000000..34f074ae
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.h
@@ -0,0 +1,127 @@
+#ifndef __RTL871X_PWRCTRL_H_
+#define __RTL871X_PWRCTRL_H_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+
+
+#define FW_PWR0	0
+#define FW_PWR1		1
+#define FW_PWR2		2
+#define FW_PWR3		3
+
+
+#define HW_PWR0	7
+#define HW_PWR1		6
+#define HW_PWR2		2
+#define HW_PWR3	0
+#define HW_PWR4	8
+
+#define FW_PWRMSK	0x7
+
+
+#define XMIT_ALIVE	BIT(0)
+#define RECV_ALIVE	BIT(1)
+#define CMD_ALIVE	BIT(2)
+#define EVT_ALIVE	BIT(3)
+
+
+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;
+};
+
+static inline void _enter_pwrlock(struct semaphore *plock)
+{
+	_down_sema(plock);
+}
+
+struct	pwrctrl_priv {
+	struct semaphore 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. */
+
+	_workitem SetPSModeWorkItem;
+	_workitem rpwm_workitem;
+	struct timer_list rpwm_check_timer;
+	u8	rpwm_retry;
+	uint	bSetPSModeWorkItemInProgress;
+
+	struct semaphore pnp_pwr_mgnt_sema;
+	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);
+sint 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);
+
+#endif  /* __RTL871X_PWRCTRL_H_ */