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
ar5416EepromRead(struct ath_hal * ah,u_int off,uint16_t * data)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