1*572ff6f6SMatthew Dillon /*
2*572ff6f6SMatthew Dillon * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
3*572ff6f6SMatthew Dillon * Copyright (c) 2002-2008 Atheros Communications, Inc.
4*572ff6f6SMatthew Dillon *
5*572ff6f6SMatthew Dillon * Permission to use, copy, modify, and/or distribute this software for any
6*572ff6f6SMatthew Dillon * purpose with or without fee is hereby granted, provided that the above
7*572ff6f6SMatthew Dillon * copyright notice and this permission notice appear in all copies.
8*572ff6f6SMatthew Dillon *
9*572ff6f6SMatthew Dillon * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10*572ff6f6SMatthew Dillon * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11*572ff6f6SMatthew Dillon * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12*572ff6f6SMatthew Dillon * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13*572ff6f6SMatthew Dillon * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14*572ff6f6SMatthew Dillon * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15*572ff6f6SMatthew Dillon * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16*572ff6f6SMatthew Dillon *
17*572ff6f6SMatthew Dillon * $FreeBSD$
18*572ff6f6SMatthew Dillon */
19*572ff6f6SMatthew Dillon #include "opt_ah.h"
20*572ff6f6SMatthew Dillon
21*572ff6f6SMatthew Dillon #include "ah.h"
22*572ff6f6SMatthew Dillon #include "ah_internal.h"
23*572ff6f6SMatthew Dillon #include "ah_devid.h"
24*572ff6f6SMatthew Dillon #ifdef AH_DEBUG
25*572ff6f6SMatthew Dillon #include "ah_desc.h" /* NB: for HAL_PHYERR* */
26*572ff6f6SMatthew Dillon #endif
27*572ff6f6SMatthew Dillon
28*572ff6f6SMatthew Dillon #include "ar5212/ar5212.h"
29*572ff6f6SMatthew Dillon #include "ar5212/ar5212reg.h"
30*572ff6f6SMatthew Dillon #include "ar5212/ar5212phy.h"
31*572ff6f6SMatthew Dillon
32*572ff6f6SMatthew Dillon /*
33*572ff6f6SMatthew Dillon * Read 16 bits of data from offset into *data
34*572ff6f6SMatthew Dillon */
35*572ff6f6SMatthew Dillon HAL_BOOL
ar5212EepromRead(struct ath_hal * ah,u_int off,uint16_t * data)36*572ff6f6SMatthew Dillon ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data)
37*572ff6f6SMatthew Dillon {
38*572ff6f6SMatthew Dillon OS_REG_WRITE(ah, AR_EEPROM_ADDR, off);
39*572ff6f6SMatthew Dillon OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ);
40*572ff6f6SMatthew Dillon
41*572ff6f6SMatthew Dillon if (!ath_hal_wait(ah, AR_EEPROM_STS,
42*572ff6f6SMatthew Dillon AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR,
43*572ff6f6SMatthew Dillon AR_EEPROM_STS_READ_COMPLETE)) {
44*572ff6f6SMatthew Dillon HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n",
45*572ff6f6SMatthew Dillon __func__, off);
46*572ff6f6SMatthew Dillon return AH_FALSE;
47*572ff6f6SMatthew Dillon }
48*572ff6f6SMatthew Dillon *data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff;
49*572ff6f6SMatthew Dillon return AH_TRUE;
50*572ff6f6SMatthew Dillon }
51