[deliverable/linux.git] / drivers / staging / rtl8723au / core / rtw_efuse.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.
 *
 ******************************************************************************/
#define _RTW_EFUSE_C_

#include <osdep_service.h>
#include <drv_types.h>

#include <rtw_efuse.h>
#include <rtl8723a_hal.h>
#include <usb_ops_linux.h>

#define REG_EFUSE_CTRL		0x0030
#define EFUSE_CTRL		REG_EFUSE_CTRL	/* E-Fuse Control */

#define VOLTAGE_V25		0x03
#define LDOE25_SHIFT		28

/*
 * When we want to enable write operation, we should change to
 * pwr on state. When we stop write, we should switch to 500k mode
 * and disable LDO 2.5V.
 */
static void Efuse_PowerSwitch(struct rtw_adapter *padapter,
			      u8 bWrite, u8 PwrState)
{
	u8 tempval;
	u16 tmpV16;

	if (PwrState == true) {
		rtl8723au_write8(padapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);

		/*
		 * 1.2V Power: From VDDON with Power
		 * Cut(0x0000h[15]), default valid
		 */
		tmpV16 = rtl8723au_read16(padapter, REG_SYS_ISO_CTRL);
		if (!(tmpV16 & PWC_EV12V)) {
			tmpV16 |= PWC_EV12V;
			rtl8723au_write16(padapter, REG_SYS_ISO_CTRL, tmpV16);
		}
		/* Reset: 0x0000h[28], default valid */
		tmpV16 = rtl8723au_read16(padapter, REG_SYS_FUNC_EN);
		if (!(tmpV16 & FEN_ELDR)) {
			tmpV16 |= FEN_ELDR;
			rtl8723au_write16(padapter, REG_SYS_FUNC_EN, tmpV16);
		}

		/*
		 * Clock: Gated(0x0008h[5]) 8M(0x0008h[1])
		 * clock from ANA, default valid
		 */
		tmpV16 = rtl8723au_read16(padapter, REG_SYS_CLKR);
		if ((!(tmpV16 & LOADER_CLK_EN)) || (!(tmpV16 & ANA8M))) {
			tmpV16 |= (LOADER_CLK_EN | ANA8M);
			rtl8723au_write16(padapter, REG_SYS_CLKR, tmpV16);
		}

		if (bWrite == true) {
			/*  Enable LDO 2.5V before read/write action */
			tempval = rtl8723au_read8(padapter, EFUSE_TEST + 3);
			tempval &= 0x0F;
			tempval |= (VOLTAGE_V25 << 4);
			rtl8723au_write8(padapter, EFUSE_TEST + 3,
					 tempval | 0x80);
		}
	} else {
		rtl8723au_write8(padapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);

		if (bWrite == true) {
			/*  Disable LDO 2.5V after read/write action */
			tempval = rtl8723au_read8(padapter, EFUSE_TEST + 3);
			rtl8723au_write8(padapter, EFUSE_TEST + 3,
					 tempval & 0x7F);
		}
	}
}

u16 Efuse_GetCurrentSize23a(struct rtw_adapter *pAdapter, u8 efuseType)
{
	u16 ret = 0;

	if (efuseType == EFUSE_WIFI)
		ret = rtl8723a_EfuseGetCurrentSize_WiFi(pAdapter);
	else
		ret = rtl8723a_EfuseGetCurrentSize_BT(pAdapter);

	return ret;
}

/* Get current efuse area enabled word */
u8 Efuse_CalculateWordCnts23a(u8 word_en)
{
	return hweight8((~word_en) & 0xf);
}

/*
 * Description: Execute E-Fuse read byte operation.
 *
 * Assumptions: 1. Boot from E-Fuse and successfully auto-load.
 *              2. PASSIVE_LEVEL (USB interface)
 */
void ReadEFuseByte23a(struct rtw_adapter *Adapter, u16 _offset, u8 *pbuf)
{
	u32	value32;
	u8	readbyte;
	u16	retry;

	/* Write Address */
	rtl8723au_write8(Adapter, EFUSE_CTRL+1, (_offset & 0xff));
	readbyte = rtl8723au_read8(Adapter, EFUSE_CTRL+2);
	rtl8723au_write8(Adapter, EFUSE_CTRL+2,
			 ((_offset >> 8) & 0x03) | (readbyte & 0xfc));

	/* Write bit 32 0 */
	readbyte = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
	rtl8723au_write8(Adapter, EFUSE_CTRL+3, readbyte & 0x7f);

	/* Check bit 32 read-ready */
	retry = 0;
	value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);
	while (!((value32 >> 24) & 0x80) && retry < 10000) {
		value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);
		retry++;
	}

	/*
	 * Added suggested delay. This fixes the problem that
	 * Efuse read error in high temperature condition.
	 * Designer says that there shall be some delay after
	 * ready bit is set, or the result will always stay
	 * on last data we read.
	 */
	udelay(50);
	value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);

	*pbuf = (u8)(value32 & 0xff);
}

void EFUSE_GetEfuseDefinition23a(struct rtw_adapter *pAdapter, u8 efuseType,
				 u8 type, void *pOut)
{
	u8 *pu1Tmp;
	u16 *pu2Tmp;
	u8 *pMax_section;

	switch (type) {
	case TYPE_EFUSE_MAX_SECTION:
		pMax_section = pOut;

		if (efuseType == EFUSE_WIFI)
			*pMax_section = EFUSE_MAX_SECTION_8723A;
		else
			*pMax_section = EFUSE_BT_MAX_SECTION;
		break;

	case TYPE_EFUSE_REAL_CONTENT_LEN:
		pu2Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu2Tmp = EFUSE_REAL_CONTENT_LEN_8723A;
		else
			*pu2Tmp = EFUSE_BT_REAL_CONTENT_LEN;
		break;

	case TYPE_AVAILABLE_EFUSE_BYTES_BANK:
		pu2Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu2Tmp = (EFUSE_REAL_CONTENT_LEN_8723A -
				   EFUSE_OOB_PROTECT_BYTES);
		else
			*pu2Tmp = (EFUSE_BT_REAL_BANK_CONTENT_LEN -
				   EFUSE_PROTECT_BYTES_BANK);
		break;

	case TYPE_AVAILABLE_EFUSE_BYTES_TOTAL:
		pu2Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu2Tmp = (EFUSE_REAL_CONTENT_LEN_8723A -
				   EFUSE_OOB_PROTECT_BYTES);
		else
			*pu2Tmp = (EFUSE_BT_REAL_CONTENT_LEN -
				   (EFUSE_PROTECT_BYTES_BANK * 3));
		break;

	case TYPE_EFUSE_MAP_LEN:
		pu2Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu2Tmp = EFUSE_MAP_LEN_8723A;
		else
			*pu2Tmp = EFUSE_BT_MAP_LEN;
		break;

	case TYPE_EFUSE_PROTECT_BYTES_BANK:
		pu1Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu1Tmp = EFUSE_OOB_PROTECT_BYTES;
		else
			*pu1Tmp = EFUSE_PROTECT_BYTES_BANK;
		break;

	case TYPE_EFUSE_CONTENT_LEN_BANK:
		pu2Tmp = pOut;

		if (efuseType == EFUSE_WIFI)
			*pu2Tmp = EFUSE_REAL_CONTENT_LEN_8723A;
		else
			*pu2Tmp = EFUSE_BT_REAL_BANK_CONTENT_LEN;
		break;

	default:
		pu1Tmp = pOut;
		*pu1Tmp = 0;
		break;
	}
}

/* Copy from WMAC for EFUSE read 1 byte. */
u8 EFUSE_Read1Byte23a(struct rtw_adapter *Adapter, u16 Address)
{
	u8	data;
	u8	Bytetemp = {0x00};
	u8	temp = {0x00};
	u32	k = 0;
	u16	contentLen = 0;

	EFUSE_GetEfuseDefinition23a(Adapter, EFUSE_WIFI,
				 TYPE_EFUSE_REAL_CONTENT_LEN,
				 (void *)&contentLen);

	if (Address < contentLen) { /* E-fuse 512Byte */
		/* Write E-fuse Register address bit0~7 */
		temp = Address & 0xFF;
		rtl8723au_write8(Adapter, EFUSE_CTRL+1, temp);
		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+2);
		/* Write E-fuse Register address bit8~9 */
		temp = ((Address >> 8) & 0x03) | (Bytetemp & 0xFC);
		rtl8723au_write8(Adapter, EFUSE_CTRL+2, temp);

		/* Write 0x30[31]= 0 */
		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
		temp = Bytetemp & 0x7F;
		rtl8723au_write8(Adapter, EFUSE_CTRL+3, temp);

		/* Wait Write-ready (0x30[31]= 1) */
		Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
		while (!(Bytetemp & 0x80)) {
			Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
			k++;
			if (k == 1000) {
				k = 0;
				break;
			}
		}
		data = rtl8723au_read8(Adapter, EFUSE_CTRL);
		return data;
	} else
		return 0xFF;
}

/* Read one byte from real Efuse. */
int efuse_OneByteRead23a(struct rtw_adapter *pAdapter, u16 addr, u8 *data)
{
	u8	tmpidx = 0;
	int	bResult;

	/*  -----------------e-fuse reg ctrl ---------------------------- */
	/* address */
	rtl8723au_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
	rtl8723au_write8(pAdapter, EFUSE_CTRL + 2,
			 ((u8)((addr >> 8) & 0x03)) |
			 (rtl8723au_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC));

	rtl8723au_write8(pAdapter, EFUSE_CTRL + 3, 0x72); /* read cmd */

	while (!(0x80 & rtl8723au_read8(pAdapter, EFUSE_CTRL + 3)) &&
	       (tmpidx < 100))
		tmpidx++;
	if (tmpidx < 100) {
		*data = rtl8723au_read8(pAdapter, EFUSE_CTRL);
		bResult = _SUCCESS;
	} else {
		*data = 0xff;
		bResult = _FAIL;
	}
	return bResult;
}

/* Write one byte to reald Efuse. */
int efuse_OneByteWrite23a(struct rtw_adapter *pAdapter, u16 addr, u8 data)
{
	u8	tmpidx = 0;
	int	bResult;

	/* return	0; */

	/*  -----------------e-fuse reg ctrl ------------------------- */
	/* address */
	rtl8723au_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
	rtl8723au_write8(pAdapter, EFUSE_CTRL + 2,
			 (rtl8723au_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC) |
			 (u8)((addr >> 8) & 0x03));
	rtl8723au_write8(pAdapter, EFUSE_CTRL, data); /* data */

	rtl8723au_write8(pAdapter, EFUSE_CTRL + 3, 0xF2); /* write cmd */

	while ((0x80 & rtl8723au_read8(pAdapter, EFUSE_CTRL + 3)) &&
	       (tmpidx < 100)) {
		tmpidx++;
	}

	if (tmpidx < 100)
		bResult = _SUCCESS;
	else
		bResult = _FAIL;

	return bResult;
}

/* Read allowed word in current efuse section data. */
void efuse_WordEnableDataRead23a(u8 word_en, u8 *sourdata, u8 *targetdata)
{
	if (!(word_en&BIT(0))) {
		targetdata[0] = sourdata[0];
		targetdata[1] = sourdata[1];
	}
	if (!(word_en&BIT(1))) {
		targetdata[2] = sourdata[2];
		targetdata[3] = sourdata[3];
	}
	if (!(word_en&BIT(2))) {
		targetdata[4] = sourdata[4];
		targetdata[5] = sourdata[5];
	}
	if (!(word_en&BIT(3))) {
		targetdata[6] = sourdata[6];
		targetdata[7] = sourdata[7];
	}
}

static int efuse_read8(struct rtw_adapter *padapter, u16 address, u8 *value)
{
	return efuse_OneByteRead23a(padapter, address, value);
}

static int efuse_write8(struct rtw_adapter *padapter, u16 address, u8 *value)
{
	return efuse_OneByteWrite23a(padapter, address, *value);
}

/* read/write raw efuse data */
int rtw_efuse_access23a(struct rtw_adapter *padapter, u8 bWrite, u16 start_addr,
			u16 cnts, u8 *data)
{
	int i = 0;
	u16 real_content_len = 0, max_available_size = 0;
	int res = _FAIL;
	int (*rw8)(struct rtw_adapter *, u16, u8*);

	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
				 TYPE_EFUSE_REAL_CONTENT_LEN,
				 (void *)&real_content_len);
	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
				 TYPE_AVAILABLE_EFUSE_BYTES_TOTAL,
				 (void *)&max_available_size);

	if (start_addr > real_content_len)
		return _FAIL;

	if (true == bWrite) {
		if ((start_addr + cnts) > max_available_size)
			return _FAIL;
		rw8 = &efuse_write8;
	} else
		rw8 = &efuse_read8;

	Efuse_PowerSwitch(padapter, bWrite, true);

	/* e-fuse one byte read/write */
	for (i = 0; i < cnts; i++) {
		if (start_addr >= real_content_len) {
			res = _FAIL;
			break;
		}

		res = rw8(padapter, start_addr++, data++);
		if (res == _FAIL)
			break;
	}

	Efuse_PowerSwitch(padapter, bWrite, false);

	return res;
}

u16 efuse_GetMaxSize23a(struct rtw_adapter *padapter)
{
	u16 max_size;

	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
				 TYPE_AVAILABLE_EFUSE_BYTES_TOTAL,
				 (void *)&max_size);
	return max_size;
}

int rtw_efuse_map_read23a(struct rtw_adapter *padapter,
			  u16 addr, u16 cnts, u8 *data)
{
	u16 mapLen = 0;

	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
				 TYPE_EFUSE_MAP_LEN, (void *)&mapLen);

	if ((addr + cnts) > mapLen)
		return _FAIL;

	Efuse_PowerSwitch(padapter, false, true);

	rtl8723a_readefuse(padapter, EFUSE_WIFI, addr, cnts, data);

	Efuse_PowerSwitch(padapter, false, false);

	return _SUCCESS;
}

int rtw_BT_efuse_map_read23a(struct rtw_adapter *padapter,
			     u16 addr, u16 cnts, u8 *data)
{
	u16 mapLen = 0;

	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_BT,
				 TYPE_EFUSE_MAP_LEN, (void *)&mapLen);

	if ((addr + cnts) > mapLen)
		return _FAIL;

	Efuse_PowerSwitch(padapter, false, true);

	rtl8723a_readefuse(padapter, EFUSE_BT, addr, cnts, data);

	Efuse_PowerSwitch(padapter, false, false);

	return _SUCCESS;
}

/* Read All Efuse content */
static void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType,
			     u8 *Efuse)
{
	u16	mapLen = 0;

	Efuse_PowerSwitch(pAdapter, false, true);

	EFUSE_GetEfuseDefinition23a(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN,
				 (void *)&mapLen);

	rtl8723a_readefuse(pAdapter, efuseType, 0, mapLen, Efuse);

	Efuse_PowerSwitch(pAdapter, false, false);
}

/*
 * Functions:	efuse_ShadowRead1Byte
 *		efuse_ShadowRead2Byte
 *		efuse_ShadowRead4Byte
 *
 * Read from efuse init map by one/two/four bytes
 */
static void efuse_ShadowRead1Byte(struct rtw_adapter *pAdapter, u16 Offset,
				  u8 *Value)
{
	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);

	*Value = pEEPROM->efuse_eeprom_data[Offset];
}

static void efuse_ShadowRead2Byte(struct rtw_adapter *pAdapter, u16 Offset,
				  u16 *Value)
{
	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);

	*Value = pEEPROM->efuse_eeprom_data[Offset];
	*Value |= pEEPROM->efuse_eeprom_data[Offset+1]<<8;
}

static void efuse_ShadowRead4Byte(struct rtw_adapter *pAdapter, u16 Offset,
				  u32 *Value)
{
	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);

	*Value = pEEPROM->efuse_eeprom_data[Offset];
	*Value |= pEEPROM->efuse_eeprom_data[Offset+1]<<8;
	*Value |= pEEPROM->efuse_eeprom_data[Offset+2]<<16;
	*Value |= pEEPROM->efuse_eeprom_data[Offset+3]<<24;
}

/* Transfer current EFUSE content to shadow init and modify map. */
void EFUSE_ShadowMapUpdate23a(struct rtw_adapter *pAdapter, u8 efuseType)
{
	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
	u16	mapLen = 0;

	EFUSE_GetEfuseDefinition23a(pAdapter, efuseType,
				 TYPE_EFUSE_MAP_LEN, (void *)&mapLen);

	if (pEEPROM->bautoload_fail_flag == true)
		memset(pEEPROM->efuse_eeprom_data, 0xFF, mapLen);
	else
		Efuse_ReadAllMap(pAdapter, efuseType,
				 pEEPROM->efuse_eeprom_data);
}

/* Read from efuse init map */
void EFUSE_ShadowRead23a(struct rtw_adapter *pAdapter, u8 Type,
			 u16 Offset, u32 *Value)
{
	if (Type == 1)
		efuse_ShadowRead1Byte(pAdapter, Offset, (u8 *)Value);
	else if (Type == 2)
		efuse_ShadowRead2Byte(pAdapter, Offset, (u16 *)Value);
	else if (Type == 4)
		efuse_ShadowRead4Byte(pAdapter, Offset, (u32 *)Value);
}
Commit	Line	Data
5e93f352 LF	1	/******************************************************************************
	2	*
	3	* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	******************************************************************************/
	15	#define _RTW_EFUSE_C_
	16
	17	#include <osdep_service.h>
	18	#include <drv_types.h>
	19
	20	#include <rtw_efuse.h>
b2e68046	21	#include <rtl8723a_hal.h>
050abc45	22	#include <usb_ops_linux.h>
5e93f352	23
5e93f352	24	#define REG_EFUSE_CTRL 0x0030
159b023d	25	#define EFUSE_CTRL REG_EFUSE_CTRL /* E-Fuse Control */
5e93f352	26
b2e68046 JS	27	#define VOLTAGE_V25 0x03
	28	#define LDOE25_SHIFT 28
	29
159b023d AS	30	/*
	31	* When we want to enable write operation, we should change to
	32	* pwr on state. When we stop write, we should switch to 500k mode
	33	* and disable LDO 2.5V.
	34	*/
b2e68046 JS	35	static void Efuse_PowerSwitch(struct rtw_adapter *padapter,
b2e68046 JS	36	u8 bWrite, u8 PwrState)
5e93f352	37	{
b2e68046 JS	38	u8 tempval;
	39	u16 tmpV16;
	40
	41	if (PwrState == true) {
edbfd672	42	rtl8723au_write8(padapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
b2e68046	43
159b023d AS	44	/*
	45	* 1.2V Power: From VDDON with Power
	46	* Cut(0x0000h[15]), default valid
	47	*/
050abc45	48	tmpV16 = rtl8723au_read16(padapter, REG_SYS_ISO_CTRL);
b2e68046 JS	49	if (!(tmpV16 & PWC_EV12V)) {
b2e68046 JS	50	tmpV16 \|= PWC_EV12V;
edbfd672	51	rtl8723au_write16(padapter, REG_SYS_ISO_CTRL, tmpV16);
b2e68046	52	}
159b023d	53	/* Reset: 0x0000h[28], default valid */
050abc45	54	tmpV16 = rtl8723au_read16(padapter, REG_SYS_FUNC_EN);
b2e68046 JS	55	if (!(tmpV16 & FEN_ELDR)) {
b2e68046 JS	56	tmpV16 \|= FEN_ELDR;
edbfd672	57	rtl8723au_write16(padapter, REG_SYS_FUNC_EN, tmpV16);
b2e68046 JS	58	}
b2e68046 JS	59
159b023d AS	60	/*
	61	* Clock: Gated(0x0008h[5]) 8M(0x0008h[1])
	62	* clock from ANA, default valid
	63	*/
050abc45	64	tmpV16 = rtl8723au_read16(padapter, REG_SYS_CLKR);
b2e68046 JS	65	if ((!(tmpV16 & LOADER_CLK_EN)) \|\| (!(tmpV16 & ANA8M))) {
b2e68046 JS	66	tmpV16 \|= (LOADER_CLK_EN \| ANA8M);
edbfd672	67	rtl8723au_write16(padapter, REG_SYS_CLKR, tmpV16);
b2e68046 JS	68	}
	69
	70	if (bWrite == true) {
	71	/* Enable LDO 2.5V before read/write action */
050abc45	72	tempval = rtl8723au_read8(padapter, EFUSE_TEST + 3);
b2e68046 JS	73	tempval &= 0x0F;
b2e68046 JS	74	tempval \|= (VOLTAGE_V25 << 4);
edbfd672 JS	75	rtl8723au_write8(padapter, EFUSE_TEST + 3,
edbfd672 JS	76	tempval \| 0x80);
b2e68046 JS	77	}
b2e68046 JS	78	} else {
edbfd672	79	rtl8723au_write8(padapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
b2e68046 JS	80
	81	if (bWrite == true) {
	82	/* Disable LDO 2.5V after read/write action */
050abc45	83	tempval = rtl8723au_read8(padapter, EFUSE_TEST + 3);
edbfd672 JS	84	rtl8723au_write8(padapter, EFUSE_TEST + 3,
edbfd672 JS	85	tempval & 0x7F);
b2e68046 JS	86	}
b2e68046 JS	87	}
5e93f352 LF	88	}
5e93f352 LF	89
0e4427f4	90	u16 Efuse_GetCurrentSize23a(struct rtw_adapter *pAdapter, u8 efuseType)
5e93f352 LF	91	{
	92	u16 ret = 0;
	93
b2e68046 JS	94	if (efuseType == EFUSE_WIFI)
	95	ret = rtl8723a_EfuseGetCurrentSize_WiFi(pAdapter);
	96	else
	97	ret = rtl8723a_EfuseGetCurrentSize_BT(pAdapter);
5e93f352 LF	98
	99	return ret;
	100	}
	101
159b023d	102	/* Get current efuse area enabled word */
0e4427f4	103	u8 Efuse_CalculateWordCnts23a(u8 word_en)
5e93f352	104	{
4ecdc381	105	return hweight8((~word_en) & 0xf);
5e93f352 LF	106	}
5e93f352 LF	107
159b023d AS	108	/*
	109	* Description: Execute E-Fuse read byte operation.
	110	*
	111	* Assumptions: 1. Boot from E-Fuse and successfully auto-load.
	112	* 2. PASSIVE_LEVEL (USB interface)
	113	*/
0e4427f4	114	void ReadEFuseByte23a(struct rtw_adapter Adapter, u16 _offset, u8 pbuf)
5e93f352 LF	115	{
	116	u32 value32;
	117	u8 readbyte;
	118	u16 retry;
5e93f352 LF	119
5e93f352 LF	120	/* Write Address */
edbfd672	121	rtl8723au_write8(Adapter, EFUSE_CTRL+1, (_offset & 0xff));
050abc45	122	readbyte = rtl8723au_read8(Adapter, EFUSE_CTRL+2);
edbfd672 JS	123	rtl8723au_write8(Adapter, EFUSE_CTRL+2,
edbfd672 JS	124	((_offset >> 8) & 0x03) \| (readbyte & 0xfc));
5e93f352 LF	125
5e93f352 LF	126	/* Write bit 32 0 */
050abc45	127	readbyte = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
edbfd672	128	rtl8723au_write8(Adapter, EFUSE_CTRL+3, readbyte & 0x7f);
5e93f352 LF	129
	130	/* Check bit 32 read-ready */
	131	retry = 0;
050abc45	132	value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);
2892d397	133	while (!((value32 >> 24) & 0x80) && retry < 10000) {
050abc45	134	value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);
5e93f352 LF	135	retry++;
	136	}
	137
159b023d AS	138	/*
	139	* Added suggested delay. This fixes the problem that
	140	* Efuse read error in high temperature condition.
	141	* Designer says that there shall be some delay after
	142	* ready bit is set, or the result will always stay
	143	* on last data we read.
	144	*/
5e93f352	145	udelay(50);
050abc45	146	value32 = rtl8723au_read32(Adapter, EFUSE_CTRL);
5e93f352 LF	147
5e93f352 LF	148	*pbuf = (u8)(value32 & 0xff);
5e93f352 LF	149	}
5e93f352 LF	150
0e4427f4 AS	151	void EFUSE_GetEfuseDefinition23a(struct rtw_adapter *pAdapter, u8 efuseType,
0e4427f4 AS	152	u8 type, void *pOut)
5e93f352	153	{
b2e68046 JS	154	u8 *pu1Tmp;
	155	u16 *pu2Tmp;
	156	u8 *pMax_section;
	157
	158	switch (type) {
	159	case TYPE_EFUSE_MAX_SECTION:
ad6128a3	160	pMax_section = pOut;
b2e68046 JS	161
	162	if (efuseType == EFUSE_WIFI)
	163	*pMax_section = EFUSE_MAX_SECTION_8723A;
	164	else
	165	*pMax_section = EFUSE_BT_MAX_SECTION;
	166	break;
	167
	168	case TYPE_EFUSE_REAL_CONTENT_LEN:
ad6128a3	169	pu2Tmp = pOut;
b2e68046 JS	170
	171	if (efuseType == EFUSE_WIFI)
	172	*pu2Tmp = EFUSE_REAL_CONTENT_LEN_8723A;
	173	else
	174	*pu2Tmp = EFUSE_BT_REAL_CONTENT_LEN;
	175	break;
	176
	177	case TYPE_AVAILABLE_EFUSE_BYTES_BANK:
ad6128a3	178	pu2Tmp = pOut;
b2e68046 JS	179
	180	if (efuseType == EFUSE_WIFI)
	181	*pu2Tmp = (EFUSE_REAL_CONTENT_LEN_8723A -
	182	EFUSE_OOB_PROTECT_BYTES);
	183	else
	184	*pu2Tmp = (EFUSE_BT_REAL_BANK_CONTENT_LEN -
	185	EFUSE_PROTECT_BYTES_BANK);
	186	break;
	187
	188	case TYPE_AVAILABLE_EFUSE_BYTES_TOTAL:
ad6128a3	189	pu2Tmp = pOut;
b2e68046 JS	190
	191	if (efuseType == EFUSE_WIFI)
	192	*pu2Tmp = (EFUSE_REAL_CONTENT_LEN_8723A -
	193	EFUSE_OOB_PROTECT_BYTES);
	194	else
	195	*pu2Tmp = (EFUSE_BT_REAL_CONTENT_LEN -
	196	(EFUSE_PROTECT_BYTES_BANK * 3));
	197	break;
	198
	199	case TYPE_EFUSE_MAP_LEN:
ad6128a3	200	pu2Tmp = pOut;
b2e68046 JS	201
	202	if (efuseType == EFUSE_WIFI)
	203	*pu2Tmp = EFUSE_MAP_LEN_8723A;
	204	else
	205	*pu2Tmp = EFUSE_BT_MAP_LEN;
	206	break;
	207
	208	case TYPE_EFUSE_PROTECT_BYTES_BANK:
ad6128a3	209	pu1Tmp = pOut;
b2e68046 JS	210
	211	if (efuseType == EFUSE_WIFI)
	212	*pu1Tmp = EFUSE_OOB_PROTECT_BYTES;
	213	else
	214	*pu1Tmp = EFUSE_PROTECT_BYTES_BANK;
	215	break;
	216
	217	case TYPE_EFUSE_CONTENT_LEN_BANK:
ad6128a3	218	pu2Tmp = pOut;
b2e68046 JS	219
	220	if (efuseType == EFUSE_WIFI)
	221	*pu2Tmp = EFUSE_REAL_CONTENT_LEN_8723A;
	222	else
	223	*pu2Tmp = EFUSE_BT_REAL_BANK_CONTENT_LEN;
	224	break;
	225
	226	default:
ad6128a3	227	pu1Tmp = pOut;
b2e68046 JS	228	*pu1Tmp = 0;
	229	break;
	230	}
5e93f352 LF	231	}
5e93f352 LF	232
159b023d	233	/* Copy from WMAC for EFUSE read 1 byte. */
0e4427f4	234	u8 EFUSE_Read1Byte23a(struct rtw_adapter *Adapter, u16 Address)
5e93f352 LF	235	{
	236	u8 data;
	237	u8 Bytetemp = {0x00};
	238	u8 temp = {0x00};
	239	u32 k = 0;
	240	u16 contentLen = 0;
	241
	242	EFUSE_GetEfuseDefinition23a(Adapter, EFUSE_WIFI,
	243	TYPE_EFUSE_REAL_CONTENT_LEN,
	244	(void *)&contentLen);
	245
c5081c54	246	if (Address < contentLen) { /* E-fuse 512Byte */
5e93f352 LF	247	/* Write E-fuse Register address bit0~7 */
5e93f352 LF	248	temp = Address & 0xFF;
edbfd672	249	rtl8723au_write8(Adapter, EFUSE_CTRL+1, temp);
050abc45	250	Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+2);
5e93f352 LF	251	/* Write E-fuse Register address bit8~9 */
5e93f352 LF	252	temp = ((Address >> 8) & 0x03) \| (Bytetemp & 0xFC);
edbfd672	253	rtl8723au_write8(Adapter, EFUSE_CTRL+2, temp);
5e93f352 LF	254
5e93f352 LF	255	/* Write 0x30[31]= 0 */
050abc45	256	Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
5e93f352	257	temp = Bytetemp & 0x7F;
edbfd672	258	rtl8723au_write8(Adapter, EFUSE_CTRL+3, temp);
5e93f352 LF	259
5e93f352 LF	260	/* Wait Write-ready (0x30[31]= 1) */
050abc45	261	Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
c5081c54	262	while (!(Bytetemp & 0x80)) {
050abc45	263	Bytetemp = rtl8723au_read8(Adapter, EFUSE_CTRL+3);
5e93f352	264	k++;
c5081c54	265	if (k == 1000) {
5e93f352 LF	266	k = 0;
	267	break;
	268	}
	269	}
050abc45	270	data = rtl8723au_read8(Adapter, EFUSE_CTRL);
5e93f352	271	return data;
67d095a0	272	} else
5e93f352	273	return 0xFF;
159b023d	274	}
5e93f352	275
159b023d	276	/* Read one byte from real Efuse. */
0e4427f4	277	int efuse_OneByteRead23a(struct rtw_adapter pAdapter, u16 addr, u8 data)
5e93f352 LF	278	{
5e93f352 LF	279	u8 tmpidx = 0;
44f3f16d	280	int bResult;
5e93f352	281
159b023d	282	/* -----------------e-fuse reg ctrl ---------------------------- */
5e93f352	283	/* address */
5e3144c1 AS	284	rtl8723au_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
	285	rtl8723au_write8(pAdapter, EFUSE_CTRL + 2,
	286	((u8)((addr >> 8) & 0x03)) \|
	287	(rtl8723au_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC));
5e93f352	288
5e3144c1	289	rtl8723au_write8(pAdapter, EFUSE_CTRL + 3, 0x72); /* read cmd */
5e93f352	290
5e3144c1 AS	291	while (!(0x80 & rtl8723au_read8(pAdapter, EFUSE_CTRL + 3)) &&
5e3144c1 AS	292	(tmpidx < 100))
5e93f352 LF	293	tmpidx++;
5e93f352 LF	294	if (tmpidx < 100) {
050abc45	295	*data = rtl8723au_read8(pAdapter, EFUSE_CTRL);
44f3f16d	296	bResult = _SUCCESS;
5e93f352 LF	297	} else {
5e93f352 LF	298	*data = 0xff;
44f3f16d	299	bResult = _FAIL;
5e93f352 LF	300	}
	301	return bResult;
	302	}
	303
159b023d	304	/* Write one byte to reald Efuse. */
0e4427f4	305	int efuse_OneByteWrite23a(struct rtw_adapter *pAdapter, u16 addr, u8 data)
5e93f352 LF	306	{
5e93f352 LF	307	u8 tmpidx = 0;
44f3f16d	308	int bResult;
5e93f352	309
5e93f352 LF	310	/* return 0; */
5e93f352 LF	311
159b023d	312	/* -----------------e-fuse reg ctrl ------------------------- */
5e93f352	313	/* address */
5e3144c1 AS	314	rtl8723au_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
	315	rtl8723au_write8(pAdapter, EFUSE_CTRL + 2,
	316	(rtl8723au_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC) \|
	317	(u8)((addr >> 8) & 0x03));
159b023d	318	rtl8723au_write8(pAdapter, EFUSE_CTRL, data); /* data */
5e93f352	319
5e3144c1	320	rtl8723au_write8(pAdapter, EFUSE_CTRL + 3, 0xF2); /* write cmd */
5e93f352	321
5e3144c1 AS	322	while ((0x80 & rtl8723au_read8(pAdapter, EFUSE_CTRL + 3)) &&
5e3144c1 AS	323	(tmpidx < 100)) {
5e93f352 LF	324	tmpidx++;
	325	}
	326
44f3f16d JS	327	if (tmpidx < 100)
44f3f16d JS	328	bResult = _SUCCESS;
5e93f352	329	else
44f3f16d	330	bResult = _FAIL;
5e93f352 LF	331
	332	return bResult;
	333	}
	334
159b023d	335	/* Read allowed word in current efuse section data. */
0e4427f4	336	void efuse_WordEnableDataRead23a(u8 word_en, u8 sourdata, u8 targetdata)
5e93f352	337	{
c5081c54	338	if (!(word_en&BIT(0))) {
5e93f352 LF	339	targetdata[0] = sourdata[0];
	340	targetdata[1] = sourdata[1];
	341	}
c5081c54	342	if (!(word_en&BIT(1))) {
5e93f352 LF	343	targetdata[2] = sourdata[2];
	344	targetdata[3] = sourdata[3];
	345	}
c5081c54	346	if (!(word_en&BIT(2))) {
5e93f352 LF	347	targetdata[4] = sourdata[4];
	348	targetdata[5] = sourdata[5];
	349	}
c5081c54	350	if (!(word_en&BIT(3))) {
5e93f352 LF	351	targetdata[6] = sourdata[6];
	352	targetdata[7] = sourdata[7];
	353	}
	354	}
	355
44f3f16d	356	static int efuse_read8(struct rtw_adapter padapter, u16 address, u8 value)
5e93f352 LF	357	{
	358	return efuse_OneByteRead23a(padapter, address, value);
	359	}
	360
44f3f16d	361	static int efuse_write8(struct rtw_adapter padapter, u16 address, u8 value)
5e93f352 LF	362	{
	363	return efuse_OneByteWrite23a(padapter, address, *value);
	364	}
	365
159b023d	366	/* read/write raw efuse data */
44f3f16d JS	367	int rtw_efuse_access23a(struct rtw_adapter *padapter, u8 bWrite, u16 start_addr,
44f3f16d JS	368	u16 cnts, u8 *data)
5e93f352 LF	369	{
5e93f352 LF	370	int i = 0;
44f3f16d	371	u16 real_content_len = 0, max_available_size = 0;
5e3144c1	372	int res = _FAIL;
44f3f16d	373	int (rw8)(struct rtw_adapter , u16, u8*);
5e93f352 LF	374
	375	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
	376	TYPE_EFUSE_REAL_CONTENT_LEN,
	377	(void *)&real_content_len);
	378	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
	379	TYPE_AVAILABLE_EFUSE_BYTES_TOTAL,
	380	(void *)&max_available_size);
	381
	382	if (start_addr > real_content_len)
	383	return _FAIL;
	384
	385	if (true == bWrite) {
	386	if ((start_addr + cnts) > max_available_size)
	387	return _FAIL;
	388	rw8 = &efuse_write8;
	389	} else
	390	rw8 = &efuse_read8;
	391
b2e68046	392	Efuse_PowerSwitch(padapter, bWrite, true);
5e93f352	393
159b023d	394	/* e-fuse one byte read/write */
5e93f352 LF	395	for (i = 0; i < cnts; i++) {
	396	if (start_addr >= real_content_len) {
	397	res = _FAIL;
	398	break;
	399	}
	400
	401	res = rw8(padapter, start_addr++, data++);
44f3f16d JS	402	if (res == _FAIL)
44f3f16d JS	403	break;
5e93f352 LF	404	}
5e93f352 LF	405
b2e68046	406	Efuse_PowerSwitch(padapter, bWrite, false);
5e93f352 LF	407
	408	return res;
	409	}
159b023d	410
5e93f352 LF	411	u16 efuse_GetMaxSize23a(struct rtw_adapter *padapter)
5e93f352 LF	412	{
44f3f16d	413	u16 max_size;
5e3144c1	414
5e93f352 LF	415	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
	416	TYPE_AVAILABLE_EFUSE_BYTES_TOTAL,
	417	(void *)&max_size);
	418	return max_size;
	419	}
159b023d	420
44f3f16d JS	421	int rtw_efuse_map_read23a(struct rtw_adapter *padapter,
44f3f16d JS	422	u16 addr, u16 cnts, u8 *data)
5e93f352	423	{
44f3f16d	424	u16 mapLen = 0;
5e93f352 LF	425
	426	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_WIFI,
	427	TYPE_EFUSE_MAP_LEN, (void *)&mapLen);
	428
	429	if ((addr + cnts) > mapLen)
	430	return _FAIL;
	431
b2e68046	432	Efuse_PowerSwitch(padapter, false, true);
5e93f352	433
b2e68046	434	rtl8723a_readefuse(padapter, EFUSE_WIFI, addr, cnts, data);
5e93f352	435
b2e68046	436	Efuse_PowerSwitch(padapter, false, false);
5e93f352 LF	437
	438	return _SUCCESS;
	439	}
	440
44f3f16d JS	441	int rtw_BT_efuse_map_read23a(struct rtw_adapter *padapter,
44f3f16d JS	442	u16 addr, u16 cnts, u8 *data)
5e93f352	443	{
44f3f16d	444	u16 mapLen = 0;
5e93f352 LF	445
	446	EFUSE_GetEfuseDefinition23a(padapter, EFUSE_BT,
	447	TYPE_EFUSE_MAP_LEN, (void *)&mapLen);
	448
	449	if ((addr + cnts) > mapLen)
	450	return _FAIL;
	451
b2e68046	452	Efuse_PowerSwitch(padapter, false, true);
5e93f352	453
b2e68046	454	rtl8723a_readefuse(padapter, EFUSE_BT, addr, cnts, data);
5e93f352	455
b2e68046	456	Efuse_PowerSwitch(padapter, false, false);
5e93f352 LF	457
	458	return _SUCCESS;
	459	}
	460
159b023d	461	/* Read All Efuse content */
84295526 KS	462	static void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType,
84295526 KS	463	u8 *Efuse)
5e93f352 LF	464	{
	465	u16 mapLen = 0;
	466
b2e68046	467	Efuse_PowerSwitch(pAdapter, false, true);
5e93f352 LF	468
	469	EFUSE_GetEfuseDefinition23a(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN,
	470	(void *)&mapLen);
	471
b2e68046	472	rtl8723a_readefuse(pAdapter, efuseType, 0, mapLen, Efuse);
5e93f352	473
b2e68046	474	Efuse_PowerSwitch(pAdapter, false, false);
5e93f352 LF	475	}
5e93f352 LF	476
159b023d AS	477	/*
	478	* Functions: efuse_ShadowRead1Byte
	479	* efuse_ShadowRead2Byte
	480	* efuse_ShadowRead4Byte
5e93f352	481	*
159b023d AS	482	* Read from efuse init map by one/two/four bytes
159b023d AS	483	*/
0e4427f4 AS	484	static void efuse_ShadowRead1Byte(struct rtw_adapter *pAdapter, u16 Offset,
0e4427f4 AS	485	u8 *Value)
5e93f352 LF	486	{
	487	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
	488
	489	*Value = pEEPROM->efuse_eeprom_data[Offset];
159b023d	490	}
5e93f352	491
0e4427f4 AS	492	static void efuse_ShadowRead2Byte(struct rtw_adapter *pAdapter, u16 Offset,
0e4427f4 AS	493	u16 *Value)
5e93f352 LF	494	{
	495	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
	496
	497	*Value = pEEPROM->efuse_eeprom_data[Offset];
	498	*Value \|= pEEPROM->efuse_eeprom_data[Offset+1]<<8;
159b023d	499	}
5e93f352	500
0e4427f4 AS	501	static void efuse_ShadowRead4Byte(struct rtw_adapter *pAdapter, u16 Offset,
0e4427f4 AS	502	u32 *Value)
5e93f352 LF	503	{
	504	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
	505
	506	*Value = pEEPROM->efuse_eeprom_data[Offset];
	507	*Value \|= pEEPROM->efuse_eeprom_data[Offset+1]<<8;
	508	*Value \|= pEEPROM->efuse_eeprom_data[Offset+2]<<16;
	509	*Value \|= pEEPROM->efuse_eeprom_data[Offset+3]<<24;
159b023d AS	510	}
	511
	512	/* Transfer current EFUSE content to shadow init and modify map. */
5e93f352 LF	513	void EFUSE_ShadowMapUpdate23a(struct rtw_adapter *pAdapter, u8 efuseType)
	514	{
	515	struct eeprom_priv *pEEPROM = GET_EEPROM_EFUSE_PRIV(pAdapter);
	516	u16 mapLen = 0;
	517
	518	EFUSE_GetEfuseDefinition23a(pAdapter, efuseType,
	519	TYPE_EFUSE_MAP_LEN, (void *)&mapLen);
	520
	521	if (pEEPROM->bautoload_fail_flag == true)
	522	memset(pEEPROM->efuse_eeprom_data, 0xFF, mapLen);
	523	else
	524	Efuse_ReadAllMap(pAdapter, efuseType,
	525	pEEPROM->efuse_eeprom_data);
159b023d	526	}
5e93f352	527
159b023d	528	/* Read from efuse init map */
0e4427f4 AS	529	void EFUSE_ShadowRead23a(struct rtw_adapter *pAdapter, u8 Type,
0e4427f4 AS	530	u16 Offset, u32 *Value)
5e93f352 LF	531	{
	532	if (Type == 1)
	533	efuse_ShadowRead1Byte(pAdapter, Offset, (u8 *)Value);
	534	else if (Type == 2)
	535	efuse_ShadowRead2Byte(pAdapter, Offset, (u16 *)Value);
	536	else if (Type == 4)
	537	efuse_ShadowRead4Byte(pAdapter, Offset, (u32 *)Value);
159b023d	538	}