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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2007 - 2011 Realtek Corporation. */
#define _RTW_EFUSE_C_
#include "../include/osdep_service.h"
#include "../include/drv_types.h"
#include "../include/rtw_efuse.h"
/*------------------------Define local variable------------------------------*/
u8 fakeEfuseBank;
u32 fakeEfuseUsedBytes;
u8 fakeEfuseContent[EFUSE_MAX_HW_SIZE] = {0};
u8 fakeEfuseInitMap[EFUSE_MAX_MAP_LEN] = {0};
u8 fakeEfuseModifiedMap[EFUSE_MAX_MAP_LEN] = {0};
u32 BTEfuseUsedBytes;
u8 BTEfuseContent[EFUSE_MAX_BT_BANK][EFUSE_MAX_HW_SIZE];
u8 BTEfuseInitMap[EFUSE_BT_MAX_MAP_LEN] = {0};
u8 BTEfuseModifiedMap[EFUSE_BT_MAX_MAP_LEN] = {0};
u32 fakeBTEfuseUsedBytes;
u8 fakeBTEfuseContent[EFUSE_MAX_BT_BANK][EFUSE_MAX_HW_SIZE];
u8 fakeBTEfuseInitMap[EFUSE_BT_MAX_MAP_LEN] = {0};
u8 fakeBTEfuseModifiedMap[EFUSE_BT_MAX_MAP_LEN] = {0};
/*------------------------Define local variable------------------------------*/
#define REG_EFUSE_CTRL 0x0030
#define EFUSE_CTRL REG_EFUSE_CTRL /* E-Fuse Control. */
static bool Efuse_Read1ByteFromFakeContent(u16 Offset, u8 *Value)
{
if (Offset >= EFUSE_MAX_HW_SIZE)
return false;
if (fakeEfuseBank == 0)
*Value = fakeEfuseContent[Offset];
else
*Value = fakeBTEfuseContent[fakeEfuseBank - 1][Offset];
return true;
}
static bool
Efuse_Write1ByteToFakeContent(
struct adapter *pAdapter,
u16 Offset,
u8 Value)
{
if (Offset >= EFUSE_MAX_HW_SIZE)
return false;
if (fakeEfuseBank == 0) {
fakeEfuseContent[Offset] = Value;
} else {
fakeBTEfuseContent[fakeEfuseBank - 1][Offset] = Value;
}
return true;
}
/* 11/16/2008 MH Add description. Get current efuse area enabled word!!. */
u8
Efuse_CalculateWordCnts(u8 word_en)
{
u8 word_cnts = 0;
if (!(word_en & BIT(0)))
word_cnts++; /* 0 : write enable */
if (!(word_en & BIT(1)))
word_cnts++;
if (!(word_en & BIT(2)))
word_cnts++;
if (!(word_en & BIT(3)))
word_cnts++;
return word_cnts;
}
/* */
/* 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
ReadEFuseByte(
struct adapter *Adapter,
u16 _offset,
u8 *pbuf,
bool pseudo)
{
u32 value32;
u8 readbyte;
u16 retry;
if (pseudo) {
Efuse_Read1ByteFromFakeContent(_offset, pbuf);
return;
}
/* Write Address */
rtw_write8(Adapter, EFUSE_CTRL + 1, (_offset & 0xff));
readbyte = rtw_read8(Adapter, EFUSE_CTRL + 2);
rtw_write8(Adapter, EFUSE_CTRL + 2, ((_offset >> 8) & 0x03) | (readbyte & 0xfc));
/* Write bit 32 0 */
readbyte = rtw_read8(Adapter, EFUSE_CTRL + 3);
rtw_write8(Adapter, EFUSE_CTRL + 3, (readbyte & 0x7f));
/* Check bit 32 read-ready */
retry = 0;
value32 = rtw_read32(Adapter, EFUSE_CTRL);
while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < 10000)) {
value32 = rtw_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 = rtw_read32(Adapter, EFUSE_CTRL);
*pbuf = (u8)(value32 & 0xff);
}
/* 11/16/2008 MH Read one byte from real Efuse. */
u8 efuse_OneByteRead(struct adapter *pAdapter, u16 addr, u8 *data, bool pseudo)
{
u8 tmpidx = 0;
u8 result;
if (pseudo) {
result = Efuse_Read1ByteFromFakeContent(addr, data);
return result;
}
/* -----------------e-fuse reg ctrl --------------------------------- */
/* address */
rtw_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
rtw_write8(pAdapter, EFUSE_CTRL + 2, ((u8)((addr >> 8) & 0x03)) |
(rtw_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC));
rtw_write8(pAdapter, EFUSE_CTRL + 3, 0x72);/* read cmd */
while (!(0x80 & rtw_read8(pAdapter, EFUSE_CTRL + 3)) && (tmpidx < 100))
tmpidx++;
if (tmpidx < 100) {
*data = rtw_read8(pAdapter, EFUSE_CTRL);
result = true;
} else {
*data = 0xff;
result = false;
}
return result;
}
/* 11/16/2008 MH Write one byte to reald Efuse. */
u8 efuse_OneByteWrite(struct adapter *pAdapter, u16 addr, u8 data, bool pseudo)
{
u8 tmpidx = 0;
u8 result;
if (pseudo) {
result = Efuse_Write1ByteToFakeContent(pAdapter, addr, data);
return result;
}
/* -----------------e-fuse reg ctrl --------------------------------- */
/* address */
rtw_write8(pAdapter, EFUSE_CTRL + 1, (u8)(addr & 0xff));
rtw_write8(pAdapter, EFUSE_CTRL + 2,
(rtw_read8(pAdapter, EFUSE_CTRL + 2) & 0xFC) |
(u8)((addr >> 8) & 0x03));
rtw_write8(pAdapter, EFUSE_CTRL, data);/* data */
rtw_write8(pAdapter, EFUSE_CTRL + 3, 0xF2);/* write cmd */
while ((0x80 & rtw_read8(pAdapter, EFUSE_CTRL + 3)) && (tmpidx < 100))
tmpidx++;
if (tmpidx < 100)
result = true;
else
result = false;
return result;
}
/*-----------------------------------------------------------------------------
* Function: efuse_WordEnableDataRead
*
* Overview: Read allowed word in current efuse section data.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 11/16/2008 MHC Create Version 0.
* 11/21/2008 MHC Fix Write bug when we only enable late word.
*
*---------------------------------------------------------------------------*/
void efuse_WordEnableDataRead(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];
}
}
/*-----------------------------------------------------------------------------
* Function: Efuse_ReadAllMap
*
* Overview: Read All Efuse content
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 11/11/2008 MHC Create Version 0.
*
*---------------------------------------------------------------------------*/
static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 efuseType, u8 *Efuse, bool pseudo)
{
u16 mapLen = 0;
rtl8188e_EfusePowerSwitch(pAdapter, false, true);
rtl8188e_EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN, (void *)&mapLen, pseudo);
rtl8188e_ReadEFuse(pAdapter, efuseType, 0, mapLen, Efuse, pseudo);
rtl8188e_EfusePowerSwitch(pAdapter, false, false);
}
/*-----------------------------------------------------------------------------
* Function: EFUSE_ShadowMapUpdate
*
* Overview: Transfer current EFUSE content to shadow init and modify map.
*
* Input: NONE
*
* Output: NONE
*
* Return: NONE
*
* Revised History:
* When Who Remark
* 11/13/2008 MHC Create Version 0.
*
*---------------------------------------------------------------------------*/
void EFUSE_ShadowMapUpdate(
struct adapter *pAdapter,
u8 efuseType,
bool pseudo)
{
struct eeprom_priv *pEEPROM = &pAdapter->eeprompriv;
u16 mapLen = 0;
rtl8188e_EFUSE_GetEfuseDefinition(pAdapter, efuseType, TYPE_EFUSE_MAP_LEN, (void *)&mapLen, pseudo);
if (pEEPROM->bautoload_fail_flag)
memset(pEEPROM->efuse_eeprom_data, 0xFF, mapLen);
else
Efuse_ReadAllMap(pAdapter, efuseType, pEEPROM->efuse_eeprom_data, pseudo);
} /* EFUSE_ShadowMapUpdate */
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