rtl8188eu/hal/HalPwrSeqCmd.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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 *
 ******************************************************************************/
/*++
Copyright (c) Realtek Semiconductor Corp. All rights reserved.

Module Name:
	HalPwrSeqCmd.c

Abstract:
	Implement HW Power sequence configuration CMD handling routine for Realtek devices.

Major Change History:
	When       Who               What
	---------- ---------------   -------------------------------
	2011-10-26 Lucas            Modify to be compatible with SD4-CE driver.
	2011-07-07 Roger            Create.

--*/
#include <HalPwrSeqCmd.h>

//
//	Description:
//		This routine deal with the Power Configuration CMDs parsing for RTL8723/RTL8188E Series IC.
//
//	Assumption:
//		We should follow specific format which was released from HW SD.
//
//	2011.07.07, added by Roger.
//
u8 HalPwrSeqCmdParsing(
	struct adapter *	padapter,
	u8				CutVersion,
	u8				FabVersion,
	u8				InterfaceType,
	WLAN_PWR_CFG	PwrSeqCmd[])
{
	WLAN_PWR_CFG	PwrCfgCmd = {0};
	u8				bPollingBit = _FALSE;
	u32				AryIdx = 0;
	u8				value = 0;
	u32				offset = 0;
	u32				pollingCount = 0; // polling autoload done.
	u32				maxPollingCnt = 5000;

	do {
		PwrCfgCmd = PwrSeqCmd[AryIdx];

		RT_TRACE(_module_hal_init_c_ , _drv_info_,
				 ("HalPwrSeqCmdParsing: offset(%#x) cut_msk(%#x) fab_msk(%#x) interface_msk(%#x) base(%#x) cmd(%#x) msk(%#x) value(%#x)\n",
					GET_PWR_CFG_OFFSET(PwrCfgCmd),
					GET_PWR_CFG_CUT_MASK(PwrCfgCmd),
					GET_PWR_CFG_FAB_MASK(PwrCfgCmd),
					GET_PWR_CFG_INTF_MASK(PwrCfgCmd),
					GET_PWR_CFG_BASE(PwrCfgCmd),
					GET_PWR_CFG_CMD(PwrCfgCmd),
					GET_PWR_CFG_MASK(PwrCfgCmd),
					GET_PWR_CFG_VALUE(PwrCfgCmd)));

		//2 Only Handle the command whose FAB, CUT, and Interface are matched
		if ((GET_PWR_CFG_FAB_MASK(PwrCfgCmd) & FabVersion) &&
			(GET_PWR_CFG_CUT_MASK(PwrCfgCmd) & CutVersion) &&
			(GET_PWR_CFG_INTF_MASK(PwrCfgCmd) & InterfaceType))
		{
			switch (GET_PWR_CFG_CMD(PwrCfgCmd))
			{
				case PWR_CMD_READ:
					RT_TRACE(_module_hal_init_c_ , _drv_info_, ("HalPwrSeqCmdParsing: PWR_CMD_READ\n"));
					break;

				case PWR_CMD_WRITE:
					RT_TRACE(_module_hal_init_c_ , _drv_info_, ("HalPwrSeqCmdParsing: PWR_CMD_WRITE\n"));
					offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);

					// Read the value from system register
					value = rtw_read8(padapter, offset);

					value &= ~(GET_PWR_CFG_MASK(PwrCfgCmd));
					value |= (GET_PWR_CFG_VALUE(PwrCfgCmd) & GET_PWR_CFG_MASK(PwrCfgCmd));

					// Write the value back to sytem register
					rtw_write8(padapter, offset, value);
					break;
				case PWR_CMD_POLLING:
					RT_TRACE(_module_hal_init_c_ , _drv_info_, ("HalPwrSeqCmdParsing: PWR_CMD_POLLING\n"));

					bPollingBit = _FALSE;
					offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);
					do {
						value = rtw_read8(padapter, offset);

						value &= GET_PWR_CFG_MASK(PwrCfgCmd);
						if (value == (GET_PWR_CFG_VALUE(PwrCfgCmd) & GET_PWR_CFG_MASK(PwrCfgCmd)))
							bPollingBit = _TRUE;
						else
							rtw_udelay_os(10);

						if (pollingCount++ > maxPollingCnt) {
							DBG_871X("Fail to polling Offset[%#x]\n", offset);
							return _FALSE;
						}
					} while (!bPollingBit);

					break;

				case PWR_CMD_DELAY:
					RT_TRACE(_module_hal_init_c_ , _drv_info_, ("HalPwrSeqCmdParsing: PWR_CMD_DELAY\n"));
					if (GET_PWR_CFG_VALUE(PwrCfgCmd) == PWRSEQ_DELAY_US)
						rtw_udelay_os(GET_PWR_CFG_OFFSET(PwrCfgCmd));
					else
						rtw_udelay_os(GET_PWR_CFG_OFFSET(PwrCfgCmd)*1000);
					break;

				case PWR_CMD_END:
					// When this command is parsed, end the process
					RT_TRACE(_module_hal_init_c_ , _drv_info_, ("HalPwrSeqCmdParsing: PWR_CMD_END\n"));
					return _TRUE;
					break;

				default:
					RT_TRACE(_module_hal_init_c_ , _drv_err_, ("HalPwrSeqCmdParsing: Unknown CMD!!\n"));
					break;
			}
		}

		AryIdx++;//Add Array Index
	}while(1);

	return _TRUE;
}