1 | /* |
2 | * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting |
3 | * Copyright (c) 2002-2008 Atheros Communications, Inc. |
4 | * |
5 | * Permission to use, copy, modify, and/or distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above |
7 | * copyright notice and this permission notice appear in all copies. |
8 | * |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 | * |
17 | * $Id: ar5416_eeprom.c,v 1.2 2011/05/30 13:57:21 joerg Exp $ |
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 | (void)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 | |