--- /dev/null
+/******************************************************************************
+ *
+ * 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)
+{
+ *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;
+#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);
+ }
+ tmp8_clk_ori = rtw_read8(padapter, 0x10250003);
+ tmp8_clk_new = tmp8_clk_ori | 0x20;
+ if (tmp8_clk_new != tmp8_clk_ori) {
+ rtw_write8(padapter, 0x10250003, tmp8_clk_new);
+ }
+#endif
+
+ 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
+ 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);
+ }
+ tmp8_clk_ori = rtw_read8(padapter, 0x10250003);
+ tmp8_clk_new = tmp8_clk_ori | 0x20;
+ if (tmp8_clk_new != tmp8_clk_ori) {
+ rtw_write8(padapter, 0x10250003, tmp8_clk_new);
+ }
+#endif
+
+ 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:
+#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
+ 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)
+{
+
+}
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