[PATCH 12/22] Staging: rtxxx0: unify RT{USB,MP}FilterCalibration()

[Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>]

From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Subject: [PATCH] Staging: rtxxx0: unify RT{USB,MP}FilterCalibration()

RTMP_BBP_IO_{READ,WRITE}8_BY_REG_ID equals RTUSB{Read,Write}BBPRegister
in case of USB chipsets so unify RT30xx and !RT30xx code.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/staging/rt2860/common/rtmp_init.c |  154 +-----------------------------
 1 file changed, 10 insertions(+), 144 deletions(-)

Index: b/drivers/staging/rt2860/common/rtmp_init.c
===================================================================
--- a/drivers/staging/rt2860/common/rtmp_init.c
+++ b/drivers/staging/rt2860/common/rtmp_init.c
@@ -1099,145 +1099,6 @@ NDIS_STATUS	NICReadRegParameters(
 
 	========================================================================
 */
-#ifndef RT30xx
-VOID RTUSBFilterCalibration(
-	IN PRTMP_ADAPTER pAd)
-{
-	UCHAR	R55x = 0, value, FilterTarget = 0x1E, BBPValue;
-	UINT	loop = 0, count = 0, loopcnt = 0, ReTry = 0;
-	UCHAR	RF_R24_Value = 0;
-
-	// Give bbp filter initial value
-	pAd->Mlme.CaliBW20RfR24 = 0x16;
-	pAd->Mlme.CaliBW40RfR24 = 0x36;  //Bit[5] must be 1 for BW 40
-
-	do
-	{
-		if (loop == 1)	//BandWidth = 40 MHz
-		{
-			// Write 0x27 to RF_R24 to program filter
-			RF_R24_Value = 0x27;
-			RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
-			FilterTarget = 0x19;
-
-			// when calibrate BW40, BBP mask must set to BW40.
-			RTUSBReadBBPRegister(pAd, BBP_R4, &BBPValue);
-			BBPValue&= (~0x18);
-			BBPValue|= (0x10);
-			RTUSBWriteBBPRegister(pAd, BBP_R4, BBPValue);
-		}
-		else			//BandWidth = 20 MHz
-		{
-			// Write 0x07 to RF_R24 to program filter
-			RF_R24_Value = 0x07;
-			RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
-			FilterTarget = 0x16;
-		}
-
-		// Write 0x01 to RF_R22 to enable baseband loopback mode
-		RT30xxReadRFRegister(pAd, RF_R22, &value);
-		value |= 0x01;
-		RT30xxWriteRFRegister(pAd, RF_R22, value);
-
-		// Write 0x00 to BBP_R24 to set power & frequency of passband test tone
-		RTUSBWriteBBPRegister(pAd, BBP_R24, 0);
-
-		do
-		{
-			// Write 0x90 to BBP_R25 to transmit test tone
-			RTUSBWriteBBPRegister(pAd, BBP_R25, 0x90);
-
-			RTMPusecDelay(1000);
-			// Read BBP_R55[6:0] for received power, set R55x = BBP_R55[6:0]
-			RTUSBReadBBPRegister(pAd, BBP_R55, &value);
-			R55x = value & 0xFF;
-
-		} while ((ReTry++ < 100) && (R55x == 0));
-
-		// Write 0x06 to BBP_R24 to set power & frequency of stopband test tone
-		RTUSBWriteBBPRegister(pAd, BBP_R24, 0x06);
-
-		while(TRUE)
-		{
-			// Write 0x90 to BBP_R25 to transmit test tone
-			RTUSBWriteBBPRegister(pAd, BBP_R25, 0x90);
-
-			//We need to wait for calibration
-			RTMPusecDelay(1000);
-			RTUSBReadBBPRegister(pAd, BBP_R55, &value);
-			value &= 0xFF;
-			if ((R55x - value) < FilterTarget)
-			{
-				RF_R24_Value ++;
-			}
-			else if ((R55x - value) == FilterTarget)
-			{
-				RF_R24_Value ++;
-				count ++;
-			}
-			else
-			{
-				break;
-			}
-
-			// prevent infinite loop cause driver hang.
-			if (loopcnt++ > 100)
-			{
-				DBGPRINT(RT_DEBUG_ERROR, ("RTUSBFilterCalibration - can't find a valid value, loopcnt=%d stop calibrating", loopcnt));
-				break;
-			}
-
-			// Write RF_R24 to program filter
-			RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
-		}
-
-		if (count > 0)
-		{
-			RF_R24_Value = RF_R24_Value - ((count) ? (1) : (0));
-		}
-
-		// Store for future usage
-		if (loopcnt < 100)
-		{
-			if (loop++ == 0)
-			{
-				//BandWidth = 20 MHz
-				pAd->Mlme.CaliBW20RfR24 = (UCHAR)RF_R24_Value;
-			}
-			else
-			{
-				//BandWidth = 40 MHz
-				pAd->Mlme.CaliBW40RfR24 = (UCHAR)RF_R24_Value;
-				break;
-			}
-		}
-		else
-			break;
-
-		RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
-
-		// reset count
-		count = 0;
-	} while(TRUE);
-
-	//
-	// Set back to initial state
-	//
-	RTUSBWriteBBPRegister(pAd, BBP_R24, 0);
-
-	RT30xxReadRFRegister(pAd, RF_R22, &value);
-	value &= ~(0x01);
-	RT30xxWriteRFRegister(pAd, RF_R22, value);
-
-	// set BBP back to BW20
-	RTUSBReadBBPRegister(pAd, BBP_R4, &BBPValue);
-	BBPValue&= (~0x18);
-	RTUSBWriteBBPRegister(pAd, BBP_R4, BBPValue);
-
-	DBGPRINT(RT_DEBUG_TRACE, ("RTUSBFilterCalibration - CaliBW20RfR24=0x%x, CaliBW40RfR24=0x%x\n", pAd->Mlme.CaliBW20RfR24, pAd->Mlme.CaliBW40RfR24));
-}
-#endif /* RT30xx */
-#ifdef RT30xx
 VOID RTMPFilterCalibration(
 	IN PRTMP_ADAPTER pAd)
 {
@@ -1246,9 +1107,13 @@ VOID RTMPFilterCalibration(
 	UCHAR	RF_R24_Value = 0;
 
 	// Give bbp filter initial value
+#ifndef RT30xx
+	pAd->Mlme.CaliBW20RfR24 = 0x16;
+	pAd->Mlme.CaliBW40RfR24 = 0x36;  //Bit[5] must be 1 for BW 40
+#else
 	pAd->Mlme.CaliBW20RfR24 = 0x1F;
 	pAd->Mlme.CaliBW40RfR24 = 0x2F; //Bit[5] must be 1 for BW 40
-
+#endif
 	do
 	{
 		if (loop == 1)	//BandWidth = 40 MHz
@@ -1266,11 +1131,12 @@ VOID RTMPFilterCalibration(
 			BBPValue&= (~0x18);
 			BBPValue|= (0x10);
 			RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
-
+#ifdef RT30xx
 			// set to BW40
 			RT30xxReadRFRegister(pAd, RF_R31, &value);
 			value |= 0x20;
 			RT30xxWriteRFRegister(pAd, RF_R31, value);
+#endif
 		}
 		else			//BandWidth = 20 MHz
 		{
@@ -1281,11 +1147,12 @@ VOID RTMPFilterCalibration(
 				FilterTarget = 0x13;
 			else
 				FilterTarget = 0x16;
-
+#ifdef RT30xx
 			// set to BW20
 			RT30xxReadRFRegister(pAd, RF_R31, &value);
 			value &= (~0x20);
 			RT30xxWriteRFRegister(pAd, RF_R31, value);
+#endif
 		}
 
 		// Write 0x01 to RF_R22 to enable baseband loopback mode
@@ -1390,7 +1257,6 @@ VOID RTMPFilterCalibration(
 
 	DBGPRINT(RT_DEBUG_TRACE, ("RTMPFilterCalibration - CaliBW20RfR24=0x%x, CaliBW40RfR24=0x%x\n", pAd->Mlme.CaliBW20RfR24, pAd->Mlme.CaliBW40RfR24));
 }
-#endif /* RT30xx */
 
 VOID NICInitRT30xxRFRegisters(IN PRTMP_ADAPTER pAd)
 {
@@ -1417,7 +1283,7 @@ VOID NICInitRT30xxRFRegisters(IN PRTMP_A
                 }
 
                 //For RF filter Calibration
-                RTUSBFilterCalibration(pAd);
+		RTMPFilterCalibration(pAd);
         }
 #endif
 #ifdef RT30xx