diff options
Diffstat (limited to 'drivers/net/wireless/rtlwifi/rtl8723as/core/rtw_eeprom.c')
| -rwxr-xr-x | drivers/net/wireless/rtlwifi/rtl8723as/core/rtw_eeprom.c | 423 |
1 files changed, 423 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8723as/core/rtw_eeprom.c b/drivers/net/wireless/rtlwifi/rtl8723as/core/rtw_eeprom.c new file mode 100755 index 000000000000..fd07d64d8724 --- /dev/null +++ b/drivers/net/wireless/rtlwifi/rtl8723as/core/rtw_eeprom.c @@ -0,0 +1,423 @@ +/****************************************************************************** + * + * 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. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * + ******************************************************************************/ +#define _RTW_EEPROM_C_ + +#include <drv_conf.h> +#include <osdep_service.h> +#include <drv_types.h> + +void up_clk(_adapter* padapter, u16 *x) +{ +_func_enter_; + *x = *x | _EESK; + rtw_write8(padapter, EE_9346CR, (u8)*x); + rtw_udelay_os(CLOCK_RATE); + +_func_exit_; + +} + +void down_clk(_adapter * padapter, u16 *x ) +{ +_func_enter_; + *x = *x & ~_EESK; + rtw_write8(padapter, EE_9346CR, (u8)*x); + rtw_udelay_os(CLOCK_RATE); +_func_exit_; +} + +void shift_out_bits(_adapter * padapter, u16 data, u16 count) +{ + u16 x,mask; +_func_enter_; + + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + mask = 0x01 << (count - 1); + x = rtw_read8(padapter, EE_9346CR); + + x &= ~(_EEDO | _EEDI); + + do + { + x &= ~_EEDI; + if(data & mask) + x |= _EEDI; + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + rtw_write8(padapter, EE_9346CR, (u8)x); + rtw_udelay_os(CLOCK_RATE); + up_clk(padapter, &x); + down_clk(padapter, &x); + mask = mask >> 1; + } while(mask); + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + x &= ~_EEDI; + rtw_write8(padapter, EE_9346CR, (u8)x); +out: +_func_exit_; +} + +u16 shift_in_bits (_adapter * padapter) +{ + u16 x,d=0,i; +_func_enter_; + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + x = rtw_read8(padapter, EE_9346CR); + + x &= ~( _EEDO | _EEDI); + d = 0; + + for(i=0; i<16; i++) + { + d = d << 1; + up_clk(padapter, &x); + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + x = rtw_read8(padapter, EE_9346CR); + + x &= ~(_EEDI); + if(x & _EEDO) + d |= 1; + + down_clk(padapter, &x); + } +out: +_func_exit_; + + return d; +} + +void standby(_adapter * padapter ) +{ + u8 x; +_func_enter_; + x = rtw_read8(padapter, EE_9346CR); + + x &= ~(_EECS | _EESK); + rtw_write8(padapter, EE_9346CR,x); + + rtw_udelay_os(CLOCK_RATE); + x |= _EECS; + rtw_write8(padapter, EE_9346CR, x); + rtw_udelay_os(CLOCK_RATE); +_func_exit_; +} + +u16 wait_eeprom_cmd_done(_adapter* padapter) +{ + u8 x; + u16 i,res=_FALSE; +_func_enter_; + standby(padapter ); + for (i=0; i<200; i++) + { + x = rtw_read8(padapter, EE_9346CR); + if (x & _EEDO){ + res=_TRUE; + goto exit; + } + rtw_udelay_os(CLOCK_RATE); + } +exit: +_func_exit_; + return res; +} + +void eeprom_clean(_adapter * padapter) +{ + u16 x; +_func_enter_; + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + x = rtw_read8(padapter, EE_9346CR); + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + x &= ~(_EECS | _EEDI); + rtw_write8(padapter, EE_9346CR, (u8)x); + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + up_clk(padapter, &x); + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + down_clk(padapter, &x); +out: +_func_exit_; +} + +void eeprom_write16(_adapter * padapter, u16 reg, u16 data) +{ + u8 x; +#ifdef CONFIG_RTL8712 + u8 tmp8_ori,tmp8_new,tmp8_clk_ori,tmp8_clk_new; + tmp8_ori=rtw_read8(padapter, 0x102502f1); + tmp8_new=tmp8_ori & 0xf7; + if(tmp8_ori != tmp8_new){ + rtw_write8(padapter, 0x102502f1, tmp8_new); + RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x102502f1=====\n")); + } + tmp8_clk_ori=rtw_read8(padapter,0x10250003); + tmp8_clk_new=tmp8_clk_ori|0x20; + if(tmp8_clk_new!=tmp8_clk_ori){ + RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x10250003=====\n")); + rtw_write8(padapter, 0x10250003, tmp8_clk_new); + } +#endif +_func_enter_; + + x = rtw_read8(padapter, EE_9346CR); + + x &= ~(_EEDI | _EEDO | _EESK | _EEM0); + x |= _EEM1 | _EECS; + rtw_write8(padapter, EE_9346CR, x); + + shift_out_bits(padapter, EEPROM_EWEN_OPCODE, 5); + + if(padapter->EepromAddressSize==8) //CF+ and SDIO + shift_out_bits(padapter, 0, 6); + else //USB + shift_out_bits(padapter, 0, 4); + + standby( padapter); + +// Commented out by rcnjko, 2004.0 +// // Erase this particular word. Write the erase opcode and register +// // number in that order. The opcode is 3bits in length; reg is 6 bits long. +// shift_out_bits(Adapter, EEPROM_ERASE_OPCODE, 3); +// shift_out_bits(Adapter, reg, Adapter->EepromAddressSize); +// +// if (wait_eeprom_cmd_done(Adapter ) == FALSE) +// { +// return; +// } + + + standby(padapter ); + + // write the new word to the EEPROM + + // send the write opcode the EEPORM + shift_out_bits(padapter, EEPROM_WRITE_OPCODE, 3); + + // select which word in the EEPROM that we are writing to. + shift_out_bits(padapter, reg, padapter->EepromAddressSize); + + // write the data to the selected EEPROM word. + shift_out_bits(padapter, data, 16); + + if (wait_eeprom_cmd_done(padapter ) == _FALSE) + { + + goto exit; + } + + standby(padapter ); + + shift_out_bits(padapter, EEPROM_EWDS_OPCODE, 5); + shift_out_bits(padapter, reg, 4); + + eeprom_clean(padapter ); +exit: +#ifdef CONFIG_RTL8712 + if(tmp8_clk_new!=tmp8_clk_ori) + rtw_write8(padapter, 0x10250003, tmp8_clk_ori); + if(tmp8_new!=tmp8_ori) + rtw_write8(padapter, 0x102502f1, tmp8_ori); + +#endif +_func_exit_; + return; +} + +u16 eeprom_read16(_adapter * padapter, u16 reg) //ReadEEprom +{ + + u16 x; + u16 data=0; +#ifdef CONFIG_RTL8712 + u8 tmp8_ori,tmp8_new,tmp8_clk_ori,tmp8_clk_new; + tmp8_ori= rtw_read8(padapter, 0x102502f1); + tmp8_new = tmp8_ori & 0xf7; + if(tmp8_ori != tmp8_new){ + rtw_write8(padapter, 0x102502f1, tmp8_new); + RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x102502f1=====\n")); + } + tmp8_clk_ori=rtw_read8(padapter,0x10250003); + tmp8_clk_new=tmp8_clk_ori|0x20; + if(tmp8_clk_new!=tmp8_clk_ori){ + RT_TRACE(_module_rtl871x_mp_ioctl_c_,_drv_err_,("====write 0x10250003=====\n")); + rtw_write8(padapter, 0x10250003, tmp8_clk_new); + } +#endif +_func_enter_; + + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + // select EEPROM, reset bits, set _EECS + x = rtw_read8(padapter, EE_9346CR); + + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + + x &= ~(_EEDI | _EEDO | _EESK | _EEM0); + x |= _EEM1 | _EECS; + rtw_write8(padapter, EE_9346CR, (unsigned char)x); + + // write the read opcode and register number in that order + // The opcode is 3bits in length, reg is 6 bits long + shift_out_bits(padapter, EEPROM_READ_OPCODE, 3); + shift_out_bits(padapter, reg, padapter->EepromAddressSize); + + // Now read the data (16 bits) in from the selected EEPROM word + data = shift_in_bits(padapter); + + eeprom_clean(padapter); +out: +#ifdef CONFIG_RTL8712 + if(tmp8_clk_new!=tmp8_clk_ori) + rtw_write8(padapter, 0x10250003, tmp8_clk_ori); + if(tmp8_new!=tmp8_ori) + rtw_write8(padapter, 0x102502f1, tmp8_ori); + +#endif +_func_exit_; + return data; + + +} + + + + +//From even offset +void eeprom_read_sz(_adapter * padapter, u16 reg, u8* data, u32 sz) +{ + + u16 x, data16; + u32 i; +_func_enter_; + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + // select EEPROM, reset bits, set _EECS + x = rtw_read8(padapter, EE_9346CR); + + if(padapter->bSurpriseRemoved==_TRUE){ + RT_TRACE(_module_rtl871x_eeprom_c_,_drv_err_,("padapter->bSurpriseRemoved==_TRUE")); + goto out; + } + + x &= ~(_EEDI | _EEDO | _EESK | _EEM0); + x |= _EEM1 | _EECS; + rtw_write8(padapter, EE_9346CR, (unsigned char)x); + + // write the read opcode and register number in that order + // The opcode is 3bits in length, reg is 6 bits long + shift_out_bits(padapter, EEPROM_READ_OPCODE, 3); + shift_out_bits(padapter, reg, padapter->EepromAddressSize); + + + for(i=0; i<sz; i+=2) + { + data16 = shift_in_bits(padapter); + data[i] = data16 & 0xff; + data[i+1] = data16 >>8; + } + + eeprom_clean(padapter); +out: +_func_exit_; + + + +} + + +//addr_off : address offset of the entry in eeprom (not the tuple number of eeprom (reg); that is addr_off !=reg) +u8 eeprom_read(_adapter * padapter, u32 addr_off, u8 sz, u8* rbuf) +{ + u8 quotient, remainder, addr_2align_odd; + u16 reg, stmp , i=0, idx = 0; +_func_enter_; + reg = (u16)(addr_off >> 1); + addr_2align_odd = (u8)(addr_off & 0x1); + + if(addr_2align_odd) //read that start at high part: e.g 1,3,5,7,9,... + { + stmp = eeprom_read16(padapter, reg); + rbuf[idx++] = (u8) ((stmp>>8)&0xff); //return hogh-part of the short + reg++; sz--; + } + + quotient = sz >> 1; + remainder = sz & 0x1; + + for( i=0 ; i < quotient; i++) + { + stmp = eeprom_read16(padapter, reg+i); + rbuf[idx++] = (u8) (stmp&0xff); + rbuf[idx++] = (u8) ((stmp>>8)&0xff); + } + + reg = reg+i; + if(remainder){ //end of read at lower part of short : 0,2,4,6,... + stmp = eeprom_read16(padapter, reg); + rbuf[idx] = (u8)(stmp & 0xff); + } +_func_exit_; + return _TRUE; +} + + + +VOID read_eeprom_content(_adapter * padapter) +{ + +_func_enter_; + + +_func_exit_; +} + |