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: ar5212_eeprom.c,v 1.1.1.1 2008/12/11 04:46:40 alc Exp $ |
18 | */ |
19 | #include "opt_ah.h" |
20 | |
21 | #include "ah.h" |
22 | #include "ah_internal.h" |
23 | #include "ah_devid.h" |
24 | #ifdef AH_DEBUG |
25 | #include "ah_desc.h" /* NB: for HAL_PHYERR* */ |
26 | #endif |
27 | |
28 | #include "ar5212/ar5212.h" |
29 | #include "ar5212/ar5212reg.h" |
30 | #include "ar5212/ar5212phy.h" |
31 | |
32 | /* |
33 | * Read 16 bits of data from offset into *data |
34 | */ |
35 | HAL_BOOL |
36 | ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data) |
37 | { |
38 | OS_REG_WRITE(ah, AR_EEPROM_ADDR, off); |
39 | OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ); |
40 | |
41 | if (!ath_hal_wait(ah, AR_EEPROM_STS, |
42 | AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR, |
43 | AR_EEPROM_STS_READ_COMPLETE)) { |
44 | HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n" , |
45 | __func__, off); |
46 | return AH_FALSE; |
47 | } |
48 | *data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff; |
49 | return AH_TRUE; |
50 | } |
51 | |