diff options
Diffstat (limited to 'drivers/staging/r8188eu/core/rtw_efuse.c')
-rw-r--r-- | drivers/staging/r8188eu/core/rtw_efuse.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_efuse.c b/drivers/staging/r8188eu/core/rtw_efuse.c deleted file mode 100644 index df9534dd25cb..000000000000 --- a/drivers/staging/r8188eu/core/rtw_efuse.c +++ /dev/null @@ -1,74 +0,0 @@ -// 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" -#include "../include/rtl8188e_hal.h" - -/* */ -/* 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) -{ - u32 value32; - u8 readbyte; - u16 retry; - int res; - - /* Write Address */ - rtw_write8(Adapter, EFUSE_CTRL + 1, (_offset & 0xff)); - res = rtw_read8(Adapter, EFUSE_CTRL + 2, &readbyte); - if (res) - return; - - rtw_write8(Adapter, EFUSE_CTRL + 2, ((_offset >> 8) & 0x03) | (readbyte & 0xfc)); - - /* Write bit 32 0 */ - res = rtw_read8(Adapter, EFUSE_CTRL + 3, &readbyte); - if (res) - return; - - rtw_write8(Adapter, EFUSE_CTRL + 3, (readbyte & 0x7f)); - - /* Check bit 32 read-ready */ - res = rtw_read32(Adapter, EFUSE_CTRL, &value32); - if (res) - return; - - for (retry = 0; retry < 10000; retry++) { - res = rtw_read32(Adapter, EFUSE_CTRL, &value32); - if (res) - continue; - - if (((value32 >> 24) & 0xff) & 0x80) - break; - } - - /* 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); - res = rtw_read32(Adapter, EFUSE_CTRL, &value32); - if (res) - return; - - *pbuf = (u8)(value32 & 0xff); - - /* FIXME: return an error to caller */ -} |