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 * $FreeBSD$ 20 */ 21 #include "opt_ah.h" 22 23 #include "ah.h" 24 #include "ah_internal.h" 25 #include "ah_devid.h" 26 #ifdef AH_DEBUG 27 #include "ah_desc.h" /* NB: for HAL_PHYERR* */ 28 #endif 29 30 #include "ar5212/ar5212.h" 31 #include "ar5212/ar5212reg.h" 32 #include "ar5212/ar5212phy.h" 33 34 /* 35 * Read 16 bits of data from offset into *data 36 */ 37 HAL_BOOL 38 ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data) 39 { 40 OS_REG_WRITE(ah, AR_EEPROM_ADDR, off); 41 OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ); 42 43 if (!ath_hal_wait(ah, AR_EEPROM_STS, 44 AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR, 45 AR_EEPROM_STS_READ_COMPLETE)) { 46 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n", 47 __func__, off); 48 return AH_FALSE; 49 } 50 *data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff; 51 return AH_TRUE; 52 } 53