mirror of
https://github.com/Mange/rtl8192eu-linux-driver
synced 2024-11-01 03:05:34 +00:00
424 lines
10 KiB
C
424 lines
10 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#define _RTW_EEPROM_C_
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#include <drv_conf.h>
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#include <osdep_service.h>
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#include <drv_types.h>
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void up_clk(_adapter* padapter, u16 *x)
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{
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_func_enter_;
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*x = *x | _EESK;
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rtw_write8(padapter, EE_9346CR, (u8)*x);
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rtw_udelay_os(CLOCK_RATE);
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_func_exit_;
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}
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void down_clk(_adapter * padapter, u16 *x )
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{
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_func_enter_;
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*x = *x & ~_EESK;
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rtw_write8(padapter, EE_9346CR, (u8)*x);
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rtw_udelay_os(CLOCK_RATE);
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_func_exit_;
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}
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void shift_out_bits(_adapter * padapter, u16 data, u16 count)
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{
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u16 x,mask;
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_func_enter_;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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mask = 0x01 << (count - 1);
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x = rtw_read8(padapter, EE_9346CR);
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x &= ~(_EEDO | _EEDI);
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do
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{
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x &= ~_EEDI;
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if(data & mask)
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x |= _EEDI;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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rtw_write8(padapter, EE_9346CR, (u8)x);
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rtw_udelay_os(CLOCK_RATE);
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up_clk(padapter, &x);
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down_clk(padapter, &x);
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mask = mask >> 1;
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} while(mask);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x &= ~_EEDI;
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rtw_write8(padapter, EE_9346CR, (u8)x);
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out:
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_func_exit_;
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}
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u16 shift_in_bits (_adapter * padapter)
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{
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u16 x,d=0,i;
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_func_enter_;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x = rtw_read8(padapter, EE_9346CR);
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x &= ~( _EEDO | _EEDI);
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d = 0;
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for(i=0; i<16; i++)
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{
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d = d << 1;
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up_clk(padapter, &x);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x = rtw_read8(padapter, EE_9346CR);
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x &= ~(_EEDI);
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if(x & _EEDO)
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d |= 1;
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down_clk(padapter, &x);
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}
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out:
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_func_exit_;
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return d;
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}
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void standby(_adapter * padapter )
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{
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u8 x;
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_func_enter_;
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x = rtw_read8(padapter, EE_9346CR);
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x &= ~(_EECS | _EESK);
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rtw_write8(padapter, EE_9346CR,x);
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rtw_udelay_os(CLOCK_RATE);
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x |= _EECS;
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rtw_write8(padapter, EE_9346CR, x);
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rtw_udelay_os(CLOCK_RATE);
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_func_exit_;
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}
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u16 wait_eeprom_cmd_done(_adapter* padapter)
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{
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u8 x;
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u16 i,res=_FALSE;
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_func_enter_;
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standby(padapter );
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for (i=0; i<200; i++)
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{
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x = rtw_read8(padapter, EE_9346CR);
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if (x & _EEDO){
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res=_TRUE;
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goto exit;
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}
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rtw_udelay_os(CLOCK_RATE);
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}
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exit:
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_func_exit_;
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return res;
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}
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void eeprom_clean(_adapter * padapter)
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{
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u16 x;
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_func_enter_;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x = rtw_read8(padapter, EE_9346CR);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x &= ~(_EECS | _EEDI);
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rtw_write8(padapter, EE_9346CR, (u8)x);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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up_clk(padapter, &x);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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down_clk(padapter, &x);
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out:
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_func_exit_;
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}
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void eeprom_write16(_adapter * padapter, u16 reg, u16 data)
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{
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u8 x;
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#ifdef CONFIG_RTL8712
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u8 tmp8_ori,tmp8_new,tmp8_clk_ori,tmp8_clk_new;
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tmp8_ori=rtw_read8(padapter, 0x102502f1);
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tmp8_new=tmp8_ori & 0xf7;
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if(tmp8_ori != tmp8_new){
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rtw_write8(padapter, 0x102502f1, tmp8_new);
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RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x102502f1=====\n"));
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}
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tmp8_clk_ori=rtw_read8(padapter,0x10250003);
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tmp8_clk_new=tmp8_clk_ori|0x20;
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if(tmp8_clk_new!=tmp8_clk_ori){
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RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x10250003=====\n"));
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rtw_write8(padapter, 0x10250003, tmp8_clk_new);
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}
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#endif
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_func_enter_;
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x = rtw_read8(padapter, EE_9346CR);
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x &= ~(_EEDI | _EEDO | _EESK | _EEM0);
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x |= _EEM1 | _EECS;
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rtw_write8(padapter, EE_9346CR, x);
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shift_out_bits(padapter, EEPROM_EWEN_OPCODE, 5);
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if(padapter->EepromAddressSize==8) //CF+ and SDIO
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shift_out_bits(padapter, 0, 6);
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else //USB
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shift_out_bits(padapter, 0, 4);
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standby( padapter);
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// Commented out by rcnjko, 2004.0
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// // Erase this particular word. Write the erase opcode and register
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// // number in that order. The opcode is 3bits in length; reg is 6 bits long.
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// shift_out_bits(Adapter, EEPROM_ERASE_OPCODE, 3);
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// shift_out_bits(Adapter, reg, Adapter->EepromAddressSize);
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//
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// if (wait_eeprom_cmd_done(Adapter ) == FALSE)
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// {
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// return;
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// }
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standby(padapter );
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// write the new word to the EEPROM
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// send the write opcode the EEPORM
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shift_out_bits(padapter, EEPROM_WRITE_OPCODE, 3);
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// select which word in the EEPROM that we are writing to.
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shift_out_bits(padapter, reg, padapter->EepromAddressSize);
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// write the data to the selected EEPROM word.
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shift_out_bits(padapter, data, 16);
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if (wait_eeprom_cmd_done(padapter ) == _FALSE)
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{
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goto exit;
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}
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standby(padapter );
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shift_out_bits(padapter, EEPROM_EWDS_OPCODE, 5);
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shift_out_bits(padapter, reg, 4);
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eeprom_clean(padapter );
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exit:
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#ifdef CONFIG_RTL8712
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if(tmp8_clk_new!=tmp8_clk_ori)
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rtw_write8(padapter, 0x10250003, tmp8_clk_ori);
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if(tmp8_new!=tmp8_ori)
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rtw_write8(padapter, 0x102502f1, tmp8_ori);
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#endif
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_func_exit_;
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return;
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}
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u16 eeprom_read16(_adapter * padapter, u16 reg) //ReadEEprom
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{
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u16 x;
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u16 data=0;
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#ifdef CONFIG_RTL8712
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u8 tmp8_ori,tmp8_new,tmp8_clk_ori,tmp8_clk_new;
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tmp8_ori= rtw_read8(padapter, 0x102502f1);
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tmp8_new = tmp8_ori & 0xf7;
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if(tmp8_ori != tmp8_new){
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rtw_write8(padapter, 0x102502f1, tmp8_new);
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RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x102502f1=====\n"));
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}
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tmp8_clk_ori=rtw_read8(padapter,0x10250003);
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tmp8_clk_new=tmp8_clk_ori|0x20;
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if(tmp8_clk_new!=tmp8_clk_ori){
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RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x10250003=====\n"));
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rtw_write8(padapter, 0x10250003, tmp8_clk_new);
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}
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#endif
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_func_enter_;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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// select EEPROM, reset bits, set _EECS
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x = rtw_read8(padapter, EE_9346CR);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x &= ~(_EEDI | _EEDO | _EESK | _EEM0);
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x |= _EEM1 | _EECS;
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rtw_write8(padapter, EE_9346CR, (unsigned char)x);
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// write the read opcode and register number in that order
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// The opcode is 3bits in length, reg is 6 bits long
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shift_out_bits(padapter, EEPROM_READ_OPCODE, 3);
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shift_out_bits(padapter, reg, padapter->EepromAddressSize);
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// Now read the data (16 bits) in from the selected EEPROM word
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data = shift_in_bits(padapter);
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eeprom_clean(padapter);
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out:
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#ifdef CONFIG_RTL8712
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if(tmp8_clk_new!=tmp8_clk_ori)
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rtw_write8(padapter, 0x10250003, tmp8_clk_ori);
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if(tmp8_new!=tmp8_ori)
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rtw_write8(padapter, 0x102502f1, tmp8_ori);
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#endif
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_func_exit_;
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return data;
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}
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//From even offset
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void eeprom_read_sz(_adapter * padapter, u16 reg, u8* data, u32 sz)
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{
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u16 x, data16;
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u32 i;
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_func_enter_;
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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// select EEPROM, reset bits, set _EECS
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x = rtw_read8(padapter, EE_9346CR);
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if (rtw_is_surprise_removed(padapter)) {
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RT_TRACE(_module_rtl871x_eeprom_c_, _drv_err_, ("padapter->bSurpriseRemoved==_TRUE"));
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goto out;
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}
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x &= ~(_EEDI | _EEDO | _EESK | _EEM0);
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x |= _EEM1 | _EECS;
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rtw_write8(padapter, EE_9346CR, (unsigned char)x);
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// write the read opcode and register number in that order
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// The opcode is 3bits in length, reg is 6 bits long
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shift_out_bits(padapter, EEPROM_READ_OPCODE, 3);
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shift_out_bits(padapter, reg, padapter->EepromAddressSize);
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for(i=0; i<sz; i+=2)
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{
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data16 = shift_in_bits(padapter);
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data[i] = data16 & 0xff;
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data[i+1] = data16 >>8;
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}
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eeprom_clean(padapter);
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out:
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_func_exit_;
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}
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//addr_off : address offset of the entry in eeprom (not the tuple number of eeprom (reg); that is addr_off !=reg)
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u8 eeprom_read(_adapter * padapter, u32 addr_off, u8 sz, u8* rbuf)
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{
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u8 quotient, remainder, addr_2align_odd;
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u16 reg, stmp , i=0, idx = 0;
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_func_enter_;
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reg = (u16)(addr_off >> 1);
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addr_2align_odd = (u8)(addr_off & 0x1);
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if(addr_2align_odd) //read that start at high part: e.g 1,3,5,7,9,...
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{
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stmp = eeprom_read16(padapter, reg);
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rbuf[idx++] = (u8) ((stmp>>8)&0xff); //return hogh-part of the short
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reg++; sz--;
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}
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quotient = sz >> 1;
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remainder = sz & 0x1;
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for( i=0 ; i < quotient; i++)
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{
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stmp = eeprom_read16(padapter, reg+i);
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rbuf[idx++] = (u8) (stmp&0xff);
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rbuf[idx++] = (u8) ((stmp>>8)&0xff);
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}
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reg = reg+i;
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if(remainder){ //end of read at lower part of short : 0,2,4,6,...
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stmp = eeprom_read16(padapter, reg);
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rbuf[idx] = (u8)(stmp & 0xff);
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}
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_func_exit_;
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return _TRUE;
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}
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VOID read_eeprom_content(_adapter * padapter)
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{
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_func_enter_;
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_func_exit_;
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}
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