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      1  1.1  alc /*
      2  1.1  alc  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
      3  1.1  alc  * Copyright (c) 2002-2008 Atheros Communications, Inc.
      4  1.1  alc  *
      5  1.1  alc  * Permission to use, copy, modify, and/or distribute this software for any
      6  1.1  alc  * purpose with or without fee is hereby granted, provided that the above
      7  1.1  alc  * copyright notice and this permission notice appear in all copies.
      8  1.1  alc  *
      9  1.1  alc  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     10  1.1  alc  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     11  1.1  alc  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     12  1.1  alc  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     13  1.1  alc  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     14  1.1  alc  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     15  1.1  alc  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     16  1.1  alc  *
     17  1.1  alc  * $Id: ar5212_eeprom.c,v 1.1.1.1 2008/12/11 04:46:40 alc Exp $
     18  1.1  alc  */
     19  1.1  alc #include "opt_ah.h"
     20  1.1  alc 
     21  1.1  alc #include "ah.h"
     22  1.1  alc #include "ah_internal.h"
     23  1.1  alc #include "ah_devid.h"
     24  1.1  alc #ifdef AH_DEBUG
     25  1.1  alc #include "ah_desc.h"			/* NB: for HAL_PHYERR* */
     26  1.1  alc #endif
     27  1.1  alc 
     28  1.1  alc #include "ar5212/ar5212.h"
     29  1.1  alc #include "ar5212/ar5212reg.h"
     30  1.1  alc #include "ar5212/ar5212phy.h"
     31  1.1  alc 
     32  1.1  alc /*
     33  1.1  alc  * Read 16 bits of data from offset into *data
     34  1.1  alc  */
     35  1.1  alc HAL_BOOL
     36  1.1  alc ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data)
     37  1.1  alc {
     38  1.1  alc 	OS_REG_WRITE(ah, AR_EEPROM_ADDR, off);
     39  1.1  alc 	OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ);
     40  1.1  alc 
     41  1.1  alc 	if (!ath_hal_wait(ah, AR_EEPROM_STS,
     42  1.1  alc 	    AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR,
     43  1.1  alc 	    AR_EEPROM_STS_READ_COMPLETE)) {
     44  1.1  alc 		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n",
     45  1.1  alc 		    __func__, off);
     46  1.1  alc 		return AH_FALSE;
     47  1.1  alc 	}
     48  1.1  alc 	*data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff;
     49  1.1  alc 	return AH_TRUE;
     50  1.1  alc }
     51