/* * Copyright (c) 2009 Rui Paulo * Copyright (c) 2008 Sam Leffler, Errno Consulting * Copyright (c) 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. * * $FreeBSD: src/sys/dev/ath/ath_hal/ah_eeprom_v4k.c,v 1.1.2.3.2.1 2010/06/14 02:09:06 kensmith Exp $ */ #include "opt_ah.h" #include "ah.h" #include "ah_internal.h" #include "ah_eeprom_v14.h" #include "ah_eeprom_v4k.h" static HAL_STATUS v4kEepromGet(struct ath_hal *ah, int param, void *val) { #define CHAN_A_IDX 0 #define CHAN_B_IDX 1 #define IS_VERS(op, v) ((pBase->version & AR5416_EEP_VER_MINOR_MASK) op (v)) HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader; const BASE_EEP4K_HEADER *pBase = &ee->ee_base.baseEepHeader; uint32_t sum; uint8_t *macaddr; int i; switch (param) { case AR_EEP_NFTHRESH_2: *(int16_t *)val = pModal->noiseFloorThreshCh[0]; return HAL_OK; case AR_EEP_MACADDR: /* Get MAC Address */ sum = 0; macaddr = val; for (i = 0; i < 6; i++) { macaddr[i] = pBase->macAddr[i]; sum += pBase->macAddr[i]; } if (sum == 0 || sum == 0xffff*3) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad mac address %s\n", __func__, ath_hal_ether_sprintf(macaddr)); return HAL_EEBADMAC; } return HAL_OK; case AR_EEP_REGDMN_0: return pBase->regDmn[0]; case AR_EEP_REGDMN_1: return pBase->regDmn[1]; case AR_EEP_OPCAP: return pBase->deviceCap; case AR_EEP_OPMODE: return pBase->opCapFlags; case AR_EEP_RFSILENT: return pBase->rfSilent; case AR_EEP_OB_2: return pModal->ob; case AR_EEP_DB_2: return pModal->db; case AR_EEP_TXMASK: return pBase->txMask; case AR_EEP_RXMASK: return pBase->rxMask; case AR_EEP_RXGAIN_TYPE: return AR5416_EEP_RXGAIN_ORIG; case AR_EEP_TXGAIN_TYPE: return IS_VERS(>=, AR5416_EEP_MINOR_VER_19) ? pBase->txGainType : AR5416_EEP_TXGAIN_ORIG; case AR_EEP_OL_PWRCTRL: HALASSERT(val == AH_NULL); return HAL_EIO; case AR_EEP_AMODE: HALASSERT(val == AH_NULL); return pBase->opCapFlags & AR5416_OPFLAGS_11A ? HAL_OK : HAL_EIO; case AR_EEP_BMODE: case AR_EEP_GMODE: HALASSERT(val == AH_NULL); return pBase->opCapFlags & AR5416_OPFLAGS_11G ? HAL_OK : HAL_EIO; case AR_EEP_32KHZCRYSTAL: case AR_EEP_COMPRESS: case AR_EEP_FASTFRAME: /* XXX policy decision, h/w can do it */ case AR_EEP_WRITEPROTECT: /* NB: no write protect bit */ HALASSERT(val == AH_NULL); /* fall thru... */ case AR_EEP_MAXQCU: /* NB: not in opCapFlags */ case AR_EEP_KCENTRIES: /* NB: not in opCapFlags */ return HAL_EIO; case AR_EEP_AES: case AR_EEP_BURST: case AR_EEP_RFKILL: case AR_EEP_TURBO2DISABLE: HALASSERT(val == AH_NULL); return HAL_OK; case AR_EEP_ANTGAINMAX_2: *(int8_t *) val = ee->ee_antennaGainMax; return HAL_OK; default: HALASSERT(0); return HAL_EINVAL; } #undef IS_VERS #undef CHAN_A_IDX #undef CHAN_B_IDX } static HAL_BOOL v4kEepromSet(struct ath_hal *ah, int param, int v) { HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; switch (param) { case AR_EEP_ANTGAINMAX_2: ee->ee_antennaGainMax = (int8_t) v; return AH_TRUE; } return AH_FALSE; } static HAL_BOOL v4kEepromDiag(struct ath_hal *ah, int request, const void *args, uint32_t argsize, void **result, uint32_t *resultsize) { HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; switch (request) { case HAL_DIAG_EEPROM: *result = &ee->ee_base; *resultsize = sizeof(ee->ee_base); return AH_TRUE; } return AH_FALSE; } /* Do structure specific swaps if Eeprom format is non native to host */ static void eepromSwap(struct ar5416eeprom_4k *ee) { uint32_t integer, i; uint16_t word; MODAL_EEP4K_HEADER *pModal; /* convert Base Eep header */ word = __bswap16(ee->baseEepHeader.length); ee->baseEepHeader.length = word; word = __bswap16(ee->baseEepHeader.checksum); ee->baseEepHeader.checksum = word; word = __bswap16(ee->baseEepHeader.version); ee->baseEepHeader.version = word; word = __bswap16(ee->baseEepHeader.regDmn[0]); ee->baseEepHeader.regDmn[0] = word; word = __bswap16(ee->baseEepHeader.regDmn[1]); ee->baseEepHeader.regDmn[1] = word; word = __bswap16(ee->baseEepHeader.rfSilent); ee->baseEepHeader.rfSilent = word; word = __bswap16(ee->baseEepHeader.blueToothOptions); ee->baseEepHeader.blueToothOptions = word; word = __bswap16(ee->baseEepHeader.deviceCap); ee->baseEepHeader.deviceCap = word; /* convert Modal Eep header */ pModal = &ee->modalHeader; /* XXX linux/ah_osdep.h only defines __bswap32 for BE */ integer = __bswap32(pModal->antCtrlCommon); pModal->antCtrlCommon = integer; for (i = 0; i < AR5416_4K_MAX_CHAINS; i++) { integer = __bswap32(pModal->antCtrlChain[i]); pModal->antCtrlChain[i] = integer; } for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) { word = __bswap16(pModal->spurChans[i].spurChan); pModal->spurChans[i].spurChan = word; } } static uint16_t v4kEepromGetSpurChan(struct ath_hal *ah, int ix, HAL_BOOL is2GHz) { HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; HALASSERT(0 <= ix && ix < AR5416_EEPROM_MODAL_SPURS); HALASSERT(is2GHz); return ee->ee_base.modalHeader.spurChans[ix].spurChan; } /************************************************************************** * fbin2freq * * Get channel value from binary representation held in eeprom * RETURNS: the frequency in MHz */ static uint16_t fbin2freq(uint8_t fbin, HAL_BOOL is2GHz) { /* * Reserved value 0xFF provides an empty definition both as * an fbin and as a frequency - do not convert */ if (fbin == AR5416_BCHAN_UNUSED) return fbin; return (uint16_t)((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); } /* * Copy EEPROM Conformance Testing Limits contents * into the allocated space */ /* USE CTLS from chain zero */ #define CTL_CHAIN 0 static void v4kEepromReadCTLInfo(struct ath_hal *ah, HAL_EEPROM_v4k *ee) { RD_EDGES_POWER *rep = ee->ee_rdEdgesPower; int i, j; HALASSERT(AR5416_4K_NUM_CTLS <= sizeof(ee->ee_rdEdgesPower)/NUM_EDGES); for (i = 0; i < AR5416_4K_NUM_CTLS && ee->ee_base.ctlIndex[i] != 0; i++) { for (j = 0; j < AR5416_4K_NUM_BAND_EDGES; j ++) { /* XXX Confirm this is the right thing to do when an invalid channel is stored */ if (ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel == AR5416_BCHAN_UNUSED) { rep[j].rdEdge = 0; rep[j].twice_rdEdgePower = 0; rep[j].flag = 0; } else { rep[j].rdEdge = fbin2freq( ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel, (ee->ee_base.ctlIndex[i] & CTL_MODE_M) != CTL_11A); rep[j].twice_rdEdgePower = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_POWER); rep[j].flag = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_FLAG) != 0; } } rep += NUM_EDGES; } ee->ee_numCtls = i; HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM, "%s Numctls = %u\n",__func__,i); } /* * Reclaim any EEPROM-related storage. */ static void v4kEepromDetach(struct ath_hal *ah) { HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; ath_hal_free(ee); AH_PRIVATE(ah)->ah_eeprom = AH_NULL; } #define owl_get_eep_ver(_ee) \ (((_ee)->ee_base.baseEepHeader.version >> 12) & 0xF) #define owl_get_eep_rev(_ee) \ (((_ee)->ee_base.baseEepHeader.version) & 0xFFF) HAL_STATUS ath_hal_v4kEepromAttach(struct ath_hal *ah) { #define NW(a) (sizeof(a) / sizeof(uint16_t)) HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom; uint16_t *eep_data, magic; HAL_BOOL need_swap; u_int w, off, len; uint32_t sum; HALASSERT(ee == AH_NULL); if (!ath_hal_eepromRead(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s Error reading Eeprom MAGIC\n", __func__); return HAL_EEREAD; } HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s Eeprom Magic = 0x%x\n", __func__, magic); if (magic != AR5416_EEPROM_MAGIC) { HALDEBUG(ah, HAL_DEBUG_ANY, "Bad magic number\n"); return HAL_EEMAGIC; } ee = ath_hal_malloc(sizeof(HAL_EEPROM_v4k)); if (ee == AH_NULL) { /* XXX message */ return HAL_ENOMEM; } eep_data = (uint16_t *)&ee->ee_base; for (w = 0; w < NW(struct ar5416eeprom_4k); w++) { off = owl_eep_start_loc + w; /* NB: AP71 starts at 0 */ if (!ath_hal_eepromRead(ah, off, &eep_data[w])) { HALDEBUG(ah, HAL_DEBUG_ANY, "%s eeprom read error at offset 0x%x\n", __func__, off); return HAL_EEREAD; } } /* Convert to eeprom native eeprom endian format */ if (isBigEndian()) { for (w = 0; w < NW(struct ar5416eeprom_4k); w++) eep_data[w] = __bswap16(eep_data[w]); } /* * At this point, we're in the native eeprom endian format * Now, determine the eeprom endian by looking at byte 26?? */ need_swap = ((ee->ee_base.baseEepHeader.eepMisc & AR5416_EEPMISC_BIG_ENDIAN) != 0) ^ isBigEndian(); if (need_swap) { HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM, "Byte swap EEPROM contents.\n"); len = __bswap16(ee->ee_base.baseEepHeader.length); } else { len = ee->ee_base.baseEepHeader.length; } len = AH_MIN(len, sizeof(struct ar5416eeprom_4k)) / sizeof(uint16_t); /* Apply the checksum, done in native eeprom format */ /* XXX - Need to check to make sure checksum calculation is done * in the correct endian format. Right now, it seems it would * cast the raw data to host format and do the calculation, which may * not be correct as the calculation may need to be done in the native * eeprom format */ sum = 0; for (w = 0; w < len; w++) { sum ^= eep_data[w]; } /* Check CRC - Attach should fail on a bad checksum */ if (sum != 0xffff) { HALDEBUG(ah, HAL_DEBUG_ANY, "Bad EEPROM checksum 0x%x (Len=%u)\n", sum, len); return HAL_EEBADSUM; } if (need_swap) eepromSwap(&ee->ee_base); /* byte swap multi-byte data */ /* swap words 0+2 so version is at the front */ magic = eep_data[0]; eep_data[0] = eep_data[2]; eep_data[2] = magic; HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM, "%s Eeprom Version %u.%u\n", __func__, owl_get_eep_ver(ee), owl_get_eep_rev(ee)); /* NB: must be after all byte swapping */ if (owl_get_eep_ver(ee) != AR5416_EEP_VER) { HALDEBUG(ah, HAL_DEBUG_ANY, "Bad EEPROM version 0x%x\n", owl_get_eep_ver(ee)); return HAL_EEBADSUM; } v4kEepromReadCTLInfo(ah, ee); /* Get CTLs */ AH_PRIVATE(ah)->ah_eeprom = ee; AH_PRIVATE(ah)->ah_eeversion = ee->ee_base.baseEepHeader.version; AH_PRIVATE(ah)->ah_eepromDetach = v4kEepromDetach; AH_PRIVATE(ah)->ah_eepromGet = v4kEepromGet; AH_PRIVATE(ah)->ah_eepromSet = v4kEepromSet; AH_PRIVATE(ah)->ah_getSpurChan = v4kEepromGetSpurChan; AH_PRIVATE(ah)->ah_eepromDiag = v4kEepromDiag; return HAL_OK; #undef NW }