2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
3 * Copyright (c) 2002-2008 Atheros Communications, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 * $Id: ar5212_eeprom.c,v 1.6 2008/11/10 04:08:03 sam Exp $
22 #include "ah_internal.h"
25 #include "ah_desc.h" /* NB: for HAL_PHYERR* */
28 #include "ar5212/ar5212.h"
29 #include "ar5212/ar5212reg.h"
30 #include "ar5212/ar5212phy.h"
33 * Read 16 bits of data from offset into *data
36 ar5212EepromRead(struct ath_hal
*ah
, u_int off
, uint16_t *data
)
38 OS_REG_WRITE(ah
, AR_EEPROM_ADDR
, off
);
39 OS_REG_WRITE(ah
, AR_EEPROM_CMD
, AR_EEPROM_CMD_READ
);
41 if (!ath_hal_wait(ah
, AR_EEPROM_STS
,
42 AR_EEPROM_STS_READ_COMPLETE
| AR_EEPROM_STS_READ_ERROR
,
43 AR_EEPROM_STS_READ_COMPLETE
)) {
44 HALDEBUG(ah
, HAL_DEBUG_ANY
, "%s: read failed for entry 0x%x\n",
48 *data
= OS_REG_READ(ah
, AR_EEPROM_DATA
) & 0xffff;