mirror of
https://github.com/morrownr/8821cu-20210916.git
synced 2024-12-22 06:15:50 +00:00
330 lines
6.9 KiB
C
330 lines
6.9 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2007 - 2017 Realtek Corporation.
|
|
*
|
|
* 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_EEPROM_C_
|
|
|
|
#include <drv_conf.h>
|
|
#include <osdep_service.h>
|
|
#include <drv_types.h>
|
|
|
|
void up_clk(_adapter *padapter, u16 *x)
|
|
{
|
|
*x = *x | _EESK;
|
|
rtw_write8(padapter, EE_9346CR, (u8)*x);
|
|
rtw_udelay_os(CLOCK_RATE);
|
|
|
|
|
|
}
|
|
|
|
void down_clk(_adapter *padapter, u16 *x)
|
|
{
|
|
*x = *x & ~_EESK;
|
|
rtw_write8(padapter, EE_9346CR, (u8)*x);
|
|
rtw_udelay_os(CLOCK_RATE);
|
|
}
|
|
|
|
void shift_out_bits(_adapter *padapter, u16 data, u16 count)
|
|
{
|
|
u16 x, mask;
|
|
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
mask = 0x01 << (count - 1);
|
|
x = rtw_read8(padapter, EE_9346CR);
|
|
|
|
x &= ~(_EEDO | _EEDI);
|
|
|
|
do {
|
|
x &= ~_EEDI;
|
|
if (data & mask)
|
|
x |= _EEDI;
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
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 (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
x &= ~_EEDI;
|
|
rtw_write8(padapter, EE_9346CR, (u8)x);
|
|
out:
|
|
return;
|
|
}
|
|
|
|
u16 shift_in_bits(_adapter *padapter)
|
|
{
|
|
u16 x, d = 0, i;
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
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 (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
x = rtw_read8(padapter, EE_9346CR);
|
|
|
|
x &= ~(_EEDI);
|
|
if (x & _EEDO)
|
|
d |= 1;
|
|
|
|
down_clk(padapter, &x);
|
|
}
|
|
out:
|
|
|
|
return d;
|
|
}
|
|
|
|
void standby(_adapter *padapter)
|
|
{
|
|
u8 x;
|
|
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);
|
|
}
|
|
|
|
u16 wait_eeprom_cmd_done(_adapter *padapter)
|
|
{
|
|
u8 x;
|
|
u16 i, res = _FALSE;
|
|
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:
|
|
return res;
|
|
}
|
|
|
|
void eeprom_clean(_adapter *padapter)
|
|
{
|
|
u16 x;
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
x = rtw_read8(padapter, EE_9346CR);
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
x &= ~(_EECS | _EEDI);
|
|
rtw_write8(padapter, EE_9346CR, (u8)x);
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
up_clk(padapter, &x);
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
down_clk(padapter, &x);
|
|
out:
|
|
return;
|
|
}
|
|
|
|
void eeprom_write16(_adapter *padapter, u16 reg, u16 data)
|
|
{
|
|
u8 x;
|
|
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:
|
|
return;
|
|
}
|
|
|
|
u16 eeprom_read16(_adapter *padapter, u16 reg) /* ReadEEprom */
|
|
{
|
|
|
|
u16 x;
|
|
u16 data = 0;
|
|
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
/* select EEPROM, reset bits, set _EECS */
|
|
x = rtw_read8(padapter, EE_9346CR);
|
|
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
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:
|
|
|
|
return data;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* From even offset */
|
|
void eeprom_read_sz(_adapter *padapter, u16 reg, u8 *data, u32 sz)
|
|
{
|
|
|
|
u16 x, data16;
|
|
u32 i;
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
goto out;
|
|
}
|
|
/* select EEPROM, reset bits, set _EECS */
|
|
x = rtw_read8(padapter, EE_9346CR);
|
|
|
|
if (rtw_is_surprise_removed(padapter)) {
|
|
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:
|
|
return;
|
|
}
|
|
|
|
|
|
/* 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;
|
|
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);
|
|
}
|
|
return _TRUE;
|
|
}
|
|
|
|
|
|
|
|
void read_eeprom_content(_adapter *padapter)
|
|
{
|
|
|
|
|
|
|
|
}
|