1 /*- 2 * SPDX-License-Identifier: ISC 3 * 4 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 5 * Copyright (c) 2002-2008 Atheros Communications, Inc. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 #include "opt_ah.h" 20 21 #include "ah.h" 22 #include "ah_internal.h" 23 #include "ah_devid.h" 24 25 #include "ah_eeprom_v14.h" 26 27 #include "ar5416/ar5416.h" 28 #include "ar5416/ar5416reg.h" 29 #include "ar5416/ar5416phy.h" 30 31 /* 32 * Read 16 bits of data from offset into *data 33 */ 34 HAL_BOOL 35 ar5416EepromRead(struct ath_hal *ah, u_int off, uint16_t *data) 36 { 37 OS_REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 38 if (!ath_hal_wait(ah, AR_EEPROM_STATUS_DATA, 39 AR_EEPROM_STATUS_DATA_BUSY | AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0)) 40 return AH_FALSE; 41 *data = MS(OS_REG_READ(ah, AR_EEPROM_STATUS_DATA), 42 AR_EEPROM_STATUS_DATA_VAL); 43 return AH_TRUE; 44 } 45