drivers/staging/rtl8723bs/hal/odm_DynamicBBPowerSaving.c

/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License 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.
 *
 ******************************************************************************/

#include "odm_precomp.h"

void odm_DynamicBBPowerSavingInit(void *pDM_VOID)
{
	PDM_ODM_T pDM_Odm = (PDM_ODM_T)pDM_VOID;
	pPS_T pDM_PSTable = &pDM_Odm->DM_PSTable;

	pDM_PSTable->PreCCAState = CCA_MAX;
	pDM_PSTable->CurCCAState = CCA_MAX;
	pDM_PSTable->PreRFState = RF_MAX;
	pDM_PSTable->CurRFState = RF_MAX;
	pDM_PSTable->Rssi_val_min = 0;
	pDM_PSTable->initialize = 0;
}

void ODM_RF_Saving(void *pDM_VOID, u8 bForceInNormal)
{
	PDM_ODM_T pDM_Odm = (PDM_ODM_T)pDM_VOID;
	pPS_T pDM_PSTable = &pDM_Odm->DM_PSTable;
	u8 Rssi_Up_bound = 30;
	u8 Rssi_Low_bound = 25;

	if (pDM_Odm->PatchID == 40) { /* RT_CID_819x_FUNAI_TV */
		Rssi_Up_bound = 50;
		Rssi_Low_bound = 45;
	}

	if (pDM_PSTable->initialize == 0) {

		pDM_PSTable->Reg874 = (PHY_QueryBBReg(pDM_Odm->Adapter, 0x874, bMaskDWord)&0x1CC000)>>14;
		pDM_PSTable->RegC70 = (PHY_QueryBBReg(pDM_Odm->Adapter, 0xc70, bMaskDWord)&BIT3)>>3;
		pDM_PSTable->Reg85C = (PHY_QueryBBReg(pDM_Odm->Adapter, 0x85c, bMaskDWord)&0xFF000000)>>24;
		pDM_PSTable->RegA74 = (PHY_QueryBBReg(pDM_Odm->Adapter, 0xa74, bMaskDWord)&0xF000)>>12;
		/* Reg818 = PHY_QueryBBReg(padapter, 0x818, bMaskDWord); */
		pDM_PSTable->initialize = 1;
	}

	if (!bForceInNormal) {
		if (pDM_Odm->RSSI_Min != 0xFF) {
			if (pDM_PSTable->PreRFState == RF_Normal) {
				if (pDM_Odm->RSSI_Min >= Rssi_Up_bound)
					pDM_PSTable->CurRFState = RF_Save;
				else
					pDM_PSTable->CurRFState = RF_Normal;
			} else {
				if (pDM_Odm->RSSI_Min <= Rssi_Low_bound)
					pDM_PSTable->CurRFState = RF_Normal;
				else
					pDM_PSTable->CurRFState = RF_Save;
			}
		} else
			pDM_PSTable->CurRFState = RF_MAX;
	} else
		pDM_PSTable->CurRFState = RF_Normal;

	if (pDM_PSTable->PreRFState != pDM_PSTable->CurRFState) {
		if (pDM_PSTable->CurRFState == RF_Save) {
			PHY_SetBBReg(pDM_Odm->Adapter, 0x874, 0x1C0000, 0x2); /* Reg874[20:18]=3'b010 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0xc70, BIT3, 0); /* RegC70[3]= 1'b0 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0x85c, 0xFF000000, 0x63); /* Reg85C[31:24]= 0x63 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0x874, 0xC000, 0x2); /* Reg874[15:14]=2'b10 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0xa74, 0xF000, 0x3); /* RegA75[7:4]= 0x3 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0x818, BIT28, 0x0); /* Reg818[28]= 1'b0 */
			PHY_SetBBReg(pDM_Odm->Adapter, 0x818, BIT28, 0x1); /* Reg818[28]= 1'b1 */
		} else {
			PHY_SetBBReg(pDM_Odm->Adapter, 0x874, 0x1CC000, pDM_PSTable->Reg874);
			PHY_SetBBReg(pDM_Odm->Adapter, 0xc70, BIT3, pDM_PSTable->RegC70);
			PHY_SetBBReg(pDM_Odm->Adapter, 0x85c, 0xFF000000, pDM_PSTable->Reg85C);
			PHY_SetBBReg(pDM_Odm->Adapter, 0xa74, 0xF000, pDM_PSTable->RegA74);
			PHY_SetBBReg(pDM_Odm->Adapter, 0x818, BIT28, 0x0);
		}
		pDM_PSTable->PreRFState = pDM_PSTable->CurRFState;
	}
}