398 lines
11 KiB
C
398 lines
11 KiB
C
/*
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* Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
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* Copyright (c) 2008 Sam Leffler, Errno Consulting
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* Copyright (c) 2008 Atheros Communications, Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* $FreeBSD$
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*/
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#include "opt_ah.h"
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#include "ah.h"
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#include "ah_internal.h"
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#include "ah_eeprom_v14.h"
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#include "ah_eeprom_v4k.h"
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static HAL_STATUS
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v4kEepromGet(struct ath_hal *ah, int param, void *val)
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{
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#define CHAN_A_IDX 0
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#define CHAN_B_IDX 1
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#define IS_VERS(op, v) ((pBase->version & AR5416_EEP_VER_MINOR_MASK) op (v))
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader;
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const BASE_EEP4K_HEADER *pBase = &ee->ee_base.baseEepHeader;
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uint32_t sum;
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uint8_t *macaddr;
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int i;
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switch (param) {
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case AR_EEP_NFTHRESH_2:
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*(int16_t *)val = pModal->noiseFloorThreshCh[0];
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return HAL_OK;
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case AR_EEP_MACADDR: /* Get MAC Address */
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sum = 0;
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macaddr = val;
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for (i = 0; i < 6; i++) {
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macaddr[i] = pBase->macAddr[i];
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sum += pBase->macAddr[i];
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}
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if (sum == 0 || sum == 0xffff*3) {
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HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad mac address %s\n",
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__func__, ath_hal_ether_sprintf(macaddr));
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return HAL_EEBADMAC;
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}
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return HAL_OK;
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case AR_EEP_REGDMN_0:
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return pBase->regDmn[0];
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case AR_EEP_REGDMN_1:
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return pBase->regDmn[1];
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case AR_EEP_OPCAP:
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return pBase->deviceCap;
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case AR_EEP_OPMODE:
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return pBase->opCapFlags;
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case AR_EEP_RFSILENT:
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return pBase->rfSilent;
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case AR_EEP_OB_2:
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return pModal->ob_0;
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case AR_EEP_DB_2:
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return pModal->db1_1;
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case AR_EEP_TXMASK:
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return pBase->txMask;
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case AR_EEP_RXMASK:
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return pBase->rxMask;
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case AR_EEP_RXGAIN_TYPE:
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return AR5416_EEP_RXGAIN_ORIG;
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case AR_EEP_TXGAIN_TYPE:
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return pBase->txGainType;
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case AR_EEP_OL_PWRCTRL:
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HALASSERT(val == AH_NULL);
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return HAL_EIO;
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case AR_EEP_AMODE:
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HALASSERT(val == AH_NULL);
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return pBase->opCapFlags & AR5416_OPFLAGS_11A ?
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HAL_OK : HAL_EIO;
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case AR_EEP_BMODE:
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case AR_EEP_GMODE:
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HALASSERT(val == AH_NULL);
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return pBase->opCapFlags & AR5416_OPFLAGS_11G ?
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HAL_OK : HAL_EIO;
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case AR_EEP_32KHZCRYSTAL:
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case AR_EEP_COMPRESS:
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case AR_EEP_FASTFRAME: /* XXX policy decision, h/w can do it */
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case AR_EEP_WRITEPROTECT: /* NB: no write protect bit */
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HALASSERT(val == AH_NULL);
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/* fall thru... */
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case AR_EEP_MAXQCU: /* NB: not in opCapFlags */
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case AR_EEP_KCENTRIES: /* NB: not in opCapFlags */
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return HAL_EIO;
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case AR_EEP_AES:
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case AR_EEP_BURST:
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case AR_EEP_RFKILL:
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case AR_EEP_TURBO2DISABLE:
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HALASSERT(val == AH_NULL);
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return HAL_OK;
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case AR_EEP_ANTGAINMAX_2:
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*(int8_t *) val = ee->ee_antennaGainMax;
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return HAL_OK;
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default:
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HALASSERT(0);
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return HAL_EINVAL;
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}
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#undef IS_VERS
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#undef CHAN_A_IDX
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#undef CHAN_B_IDX
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}
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static HAL_STATUS
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v4kEepromSet(struct ath_hal *ah, int param, int v)
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{
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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switch (param) {
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case AR_EEP_ANTGAINMAX_2:
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ee->ee_antennaGainMax = (int8_t) v;
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return HAL_OK;
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}
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return HAL_EINVAL;
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}
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static HAL_BOOL
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v4kEepromDiag(struct ath_hal *ah, int request,
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const void *args, uint32_t argsize, void **result, uint32_t *resultsize)
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{
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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switch (request) {
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case HAL_DIAG_EEPROM:
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*result = ee;
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*resultsize = sizeof(HAL_EEPROM_v4k);
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return AH_TRUE;
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}
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return AH_FALSE;
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}
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/* Do structure specific swaps if Eeprom format is non native to host */
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static void
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eepromSwap(struct ar5416eeprom_4k *ee)
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{
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uint32_t integer, i;
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uint16_t word;
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MODAL_EEP4K_HEADER *pModal;
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/* convert Base Eep header */
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word = __bswap16(ee->baseEepHeader.length);
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ee->baseEepHeader.length = word;
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word = __bswap16(ee->baseEepHeader.checksum);
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ee->baseEepHeader.checksum = word;
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word = __bswap16(ee->baseEepHeader.version);
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ee->baseEepHeader.version = word;
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word = __bswap16(ee->baseEepHeader.regDmn[0]);
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ee->baseEepHeader.regDmn[0] = word;
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word = __bswap16(ee->baseEepHeader.regDmn[1]);
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ee->baseEepHeader.regDmn[1] = word;
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word = __bswap16(ee->baseEepHeader.rfSilent);
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ee->baseEepHeader.rfSilent = word;
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word = __bswap16(ee->baseEepHeader.blueToothOptions);
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ee->baseEepHeader.blueToothOptions = word;
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word = __bswap16(ee->baseEepHeader.deviceCap);
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ee->baseEepHeader.deviceCap = word;
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/* convert Modal Eep header */
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pModal = &ee->modalHeader;
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/* XXX linux/ah_osdep.h only defines __bswap32 for BE */
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integer = __bswap32(pModal->antCtrlCommon);
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pModal->antCtrlCommon = integer;
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for (i = 0; i < AR5416_4K_MAX_CHAINS; i++) {
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integer = __bswap32(pModal->antCtrlChain[i]);
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pModal->antCtrlChain[i] = integer;
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}
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for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) {
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word = __bswap16(pModal->spurChans[i].spurChan);
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pModal->spurChans[i].spurChan = word;
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}
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}
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static uint16_t
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v4kEepromGetSpurChan(struct ath_hal *ah, int ix, HAL_BOOL is2GHz)
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{
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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HALASSERT(0 <= ix && ix < AR5416_EEPROM_MODAL_SPURS);
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HALASSERT(is2GHz);
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return ee->ee_base.modalHeader.spurChans[ix].spurChan;
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}
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/**************************************************************************
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* fbin2freq
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*
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* Get channel value from binary representation held in eeprom
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* RETURNS: the frequency in MHz
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*/
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static uint16_t
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fbin2freq(uint8_t fbin, HAL_BOOL is2GHz)
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{
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/*
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* Reserved value 0xFF provides an empty definition both as
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* an fbin and as a frequency - do not convert
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*/
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if (fbin == AR5416_BCHAN_UNUSED)
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return fbin;
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return (uint16_t)((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin));
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}
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/*
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* Copy EEPROM Conformance Testing Limits contents
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* into the allocated space
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*/
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/* USE CTLS from chain zero */
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#define CTL_CHAIN 0
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static void
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v4kEepromReadCTLInfo(struct ath_hal *ah, HAL_EEPROM_v4k *ee)
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{
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RD_EDGES_POWER *rep = ee->ee_rdEdgesPower;
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int i, j;
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HALASSERT(AR5416_4K_NUM_CTLS <= sizeof(ee->ee_rdEdgesPower)/NUM_EDGES);
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for (i = 0; ee->ee_base.ctlIndex[i] != 0 && i < AR5416_4K_NUM_CTLS; i++) {
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for (j = 0; j < NUM_EDGES; j ++) {
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/* XXX Confirm this is the right thing to do when an invalid channel is stored */
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if (ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel == AR5416_BCHAN_UNUSED) {
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rep[j].rdEdge = 0;
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rep[j].twice_rdEdgePower = 0;
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rep[j].flag = 0;
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} else {
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rep[j].rdEdge = fbin2freq(
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ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel,
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(ee->ee_base.ctlIndex[i] & CTL_MODE_M) != CTL_11A);
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rep[j].twice_rdEdgePower = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_POWER);
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rep[j].flag = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_FLAG) != 0;
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}
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}
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rep += NUM_EDGES;
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}
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ee->ee_numCtls = i;
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HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
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"%s Numctls = %u\n",__func__,i);
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}
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/*
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* Reclaim any EEPROM-related storage.
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*/
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static void
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v4kEepromDetach(struct ath_hal *ah)
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{
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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ath_hal_free(ee);
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AH_PRIVATE(ah)->ah_eeprom = AH_NULL;
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}
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#define owl_get_eep_ver(_ee) \
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(((_ee)->ee_base.baseEepHeader.version >> 12) & 0xF)
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#define owl_get_eep_rev(_ee) \
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(((_ee)->ee_base.baseEepHeader.version) & 0xFFF)
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HAL_STATUS
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ath_hal_v4kEepromAttach(struct ath_hal *ah)
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{
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#define NW(a) (sizeof(a) / sizeof(uint16_t))
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HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
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uint16_t *eep_data, magic;
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HAL_BOOL need_swap;
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u_int w, off, len;
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uint32_t sum;
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HALASSERT(ee == AH_NULL);
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/*
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* Don't check magic if we're supplied with an EEPROM block,
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* typically this is from Howl but it may also be from later
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* boards w/ an embedded WMAC.
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*/
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if (ah->ah_eepromdata == NULL) {
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if (!ath_hal_eepromRead(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) {
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HALDEBUG(ah, HAL_DEBUG_ANY,
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"%s Error reading Eeprom MAGIC\n", __func__);
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return HAL_EEREAD;
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}
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}
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HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s Eeprom Magic = 0x%x\n",
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__func__, magic);
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if (magic != AR5416_EEPROM_MAGIC) {
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HALDEBUG(ah, HAL_DEBUG_ANY, "Bad magic number\n");
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return HAL_EEMAGIC;
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}
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ee = ath_hal_malloc(sizeof(HAL_EEPROM_v4k));
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if (ee == AH_NULL) {
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/* XXX message */
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return HAL_ENOMEM;
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}
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eep_data = (uint16_t *)&ee->ee_base;
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for (w = 0; w < NW(struct ar5416eeprom_4k); w++) {
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off = owl_eep_start_loc + w; /* NB: AP71 starts at 0 */
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if (!ath_hal_eepromRead(ah, off, &eep_data[w])) {
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HALDEBUG(ah, HAL_DEBUG_ANY,
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"%s eeprom read error at offset 0x%x\n",
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__func__, off);
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return HAL_EEREAD;
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}
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}
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/* Convert to eeprom native eeprom endian format */
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/*
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* XXX this is likely incorrect but will do for now
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* XXX to get embedded boards working.
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*/
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if (ah->ah_eepromdata == NULL && isBigEndian()) {
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for (w = 0; w < NW(struct ar5416eeprom_4k); w++)
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eep_data[w] = __bswap16(eep_data[w]);
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}
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/*
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* At this point, we're in the native eeprom endian format
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* Now, determine the eeprom endian by looking at byte 26??
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*/
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need_swap = ((ee->ee_base.baseEepHeader.eepMisc & AR5416_EEPMISC_BIG_ENDIAN) != 0) ^ isBigEndian();
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if (need_swap) {
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HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
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"Byte swap EEPROM contents.\n");
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len = __bswap16(ee->ee_base.baseEepHeader.length);
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} else {
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len = ee->ee_base.baseEepHeader.length;
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}
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len = AH_MIN(len, sizeof(struct ar5416eeprom_4k)) / sizeof(uint16_t);
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/* Apply the checksum, done in native eeprom format */
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/* XXX - Need to check to make sure checksum calculation is done
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* in the correct endian format. Right now, it seems it would
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* cast the raw data to host format and do the calculation, which may
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* not be correct as the calculation may need to be done in the native
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* eeprom format
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*/
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sum = 0;
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for (w = 0; w < len; w++) {
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sum ^= eep_data[w];
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}
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/* Check CRC - Attach should fail on a bad checksum */
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if (sum != 0xffff) {
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HALDEBUG(ah, HAL_DEBUG_ANY,
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"Bad EEPROM checksum 0x%x (Len=%u)\n", sum, len);
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return HAL_EEBADSUM;
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}
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if (need_swap)
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eepromSwap(&ee->ee_base); /* byte swap multi-byte data */
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/* swap words 0+2 so version is at the front */
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magic = eep_data[0];
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eep_data[0] = eep_data[2];
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eep_data[2] = magic;
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HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
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"%s Eeprom Version %u.%u\n", __func__,
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owl_get_eep_ver(ee), owl_get_eep_rev(ee));
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/* NB: must be after all byte swapping */
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if (owl_get_eep_ver(ee) != AR5416_EEP_VER) {
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HALDEBUG(ah, HAL_DEBUG_ANY,
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"Bad EEPROM version 0x%x\n", owl_get_eep_ver(ee));
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return HAL_EEBADSUM;
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}
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v4kEepromReadCTLInfo(ah, ee); /* Get CTLs */
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AH_PRIVATE(ah)->ah_eeprom = ee;
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AH_PRIVATE(ah)->ah_eeversion = ee->ee_base.baseEepHeader.version;
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AH_PRIVATE(ah)->ah_eepromDetach = v4kEepromDetach;
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AH_PRIVATE(ah)->ah_eepromGet = v4kEepromGet;
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AH_PRIVATE(ah)->ah_eepromSet = v4kEepromSet;
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AH_PRIVATE(ah)->ah_getSpurChan = v4kEepromGetSpurChan;
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AH_PRIVATE(ah)->ah_eepromDiag = v4kEepromDiag;
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return HAL_OK;
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#undef NW
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}
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