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