/******************************************************************************
*
* 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 local variable------------------------------*/
/* */
#define REG_EFUSE_CTRL 0x0030
#define EFUSE_CTRL REG_EFUSE_CTRL /* E-Fuse Control. */
/* */
#define VOLTAGE_V25 0x03
#define LDOE25_SHIFT 28
/*-----------------------------------------------------------------------------
* Function: Efuse_PowerSwitch
*
* Overview: 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.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 11/17/2008 MHC Create Version 0.
*
*---------------------------------------------------------------------------*/
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;
}
/* 11/16/2008 MH Add description. Get current efuse area enabled word!!. */
u8
Efuse_CalculateWordCnts23a(u8 word_en)
{
return hweight8((~word_en) & 0xf);
}
/* */
/* Description: */
/* Execute E-Fuse read byte operation. */
/* Referred from SD1 Richard. */
/* */
/* Assumption: */
/* 1. Boot from E-Fuse and successfully auto-load. */
/* 2. PASSIVE_LEVEL (USB interface) */
/* */
/* Created by Roger, 2008.10.21. */
/* */
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++;
}
/* 20100205 Joseph: Add delay suggested by SD1 Victor. */
/* This fix 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;
}
}
/*-----------------------------------------------------------------------------
* Function: EFUSE_Read1Byte23a
*
* Overview: Copy from WMAC fot EFUSE read 1 byte.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 09/23/2008 MHC Copy from WMAC.
*
*---------------------------------------------------------------------------*/
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;
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