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/*
* Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
* Copyright (c) 2002-2008 Atheros Communications, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $FreeBSD: release/9.1.0/sys/dev/ath/ath_hal/ar5212/ar5212_eeprom.c 204644 2010-03-03 17:32:32Z rpaulo $
*/
#include "opt_ah.h"
#include "ah.h"
#include "ah_internal.h"
#include "ah_devid.h"
#ifdef AH_DEBUG
#include "ah_desc.h" /* NB: for HAL_PHYERR* */
#endif
#include "ar5212/ar5212.h"
#include "ar5212/ar5212reg.h"
#include "ar5212/ar5212phy.h"
/*
* Read 16 bits of data from offset into *data
*/
HAL_BOOL
ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data)
{
OS_REG_WRITE(ah, AR_EEPROM_ADDR, off);
OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ);
if (!ath_hal_wait(ah, AR_EEPROM_STS,
AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR,
AR_EEPROM_STS_READ_COMPLETE)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n",
__func__, off);
return AH_FALSE;
}
*data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff;
return AH_TRUE;
}