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Diffstat (limited to 'ar5212/ar5212_eeprom.c')
| -rw-r--r-- | ar5212/ar5212_eeprom.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/ar5212/ar5212_eeprom.c b/ar5212/ar5212_eeprom.c new file mode 100644 index 0000000..433deff --- /dev/null +++ b/ar5212/ar5212_eeprom.c @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting + * Copyright (c) 2002-2008 Atheros Communications, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * $Id: ar5212_eeprom.c,v 1.6 2008/11/10 04:08:03 sam Exp $ + */ +#include "opt_ah.h" + +#ifdef AH_SUPPORT_AR5212 + +#include "ah.h" +#include "ah_internal.h" +#include "ah_devid.h" +#ifdef AH_DEBUG +#include "ah_desc.h" /* NB: for HAL_PHYERR* */ +#endif + +#include "ar5212/ar5212.h" +#include "ar5212/ar5212reg.h" +#include "ar5212/ar5212phy.h" +#ifdef AH_SUPPORT_AR5311 +#include "ar5212/ar5311reg.h" +#endif + +/* + * Read 16 bits of data from offset into *data + */ +HAL_BOOL +ar5212EepromRead(struct ath_hal *ah, u_int off, uint16_t *data) +{ + OS_REG_WRITE(ah, AR_EEPROM_ADDR, off); + OS_REG_WRITE(ah, AR_EEPROM_CMD, AR_EEPROM_CMD_READ); + + if (!ath_hal_wait(ah, AR_EEPROM_STS, + AR_EEPROM_STS_READ_COMPLETE | AR_EEPROM_STS_READ_ERROR, + AR_EEPROM_STS_READ_COMPLETE)) { + HALDEBUG(ah, HAL_DEBUG_ANY, "%s: read failed for entry 0x%x\n", + __func__, off); + return AH_FALSE; + } + *data = OS_REG_READ(ah, AR_EEPROM_DATA) & 0xffff; + return AH_TRUE; +} +#endif /* AH_SUPPORT_AR5212 */ |
