diff options
Diffstat (limited to 'ah_eeprom_v14.c')
-rw-r--r-- | ah_eeprom_v14.c | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/ah_eeprom_v14.c b/ah_eeprom_v14.c new file mode 100644 index 0000000..67bcded --- /dev/null +++ b/ah_eeprom_v14.c @@ -0,0 +1,415 @@ +/* + * 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. + * + * $Id: ah_eeprom_v14.c,v 1.3 2008/11/10 04:08:00 sam Exp $ + */ +#include "opt_ah.h" + +#include "ah.h" +#include "ah_internal.h" +#include "ah_eeprom_v14.h" + +static HAL_STATUS +v14EepromGet(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_v14 *ee = AH_PRIVATE(ah)->ah_eeprom; + const MODAL_EEP_HEADER *pModal = ee->ee_base.modalHeader; + const BASE_EEP_HEADER *pBase = &ee->ee_base.baseEepHeader; + uint32_t sum; + uint8_t *macaddr; + int i; + + switch (param) { + case AR_EEP_NFTHRESH_5: + *(int8_t *)val = pModal[0].noiseFloorThreshCh[0]; + return HAL_OK; + case AR_EEP_NFTHRESH_2: + *(int8_t *)val = pModal[1].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; + } + 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_5: + return pModal[CHAN_A_IDX].ob; + case AR_EEP_DB_5: + return pModal[CHAN_A_IDX].db; + case AR_EEP_OB_2: + return pModal[CHAN_B_IDX].ob; + case AR_EEP_DB_2: + return pModal[CHAN_B_IDX].db; + case AR_EEP_TXMASK: + return pBase->txMask; + case AR_EEP_RXMASK: + return pBase->rxMask; + case AR_EEP_RXGAIN_TYPE: + return IS_VERS(>=, AR5416_EEP_MINOR_VER_17) ? + pBase->rxGainType : 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_FSTCLK_5G: + return IS_VERS(>, AR5416_EEP_MINOR_VER_16) ? + pBase->fastClk5g : AH_TRUE; + case AR_EEP_OL_PWRCTRL: + HALASSERT(val == AH_NULL); + return pBase->openLoopPwrCntl ? HAL_OK : 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_TURBO5DISABLE: + case AR_EEP_TURBO2DISABLE: + HALASSERT(val == AH_NULL); + return HAL_OK; + case AR_EEP_ANTGAINMAX_2: + *(int8_t *) val = ee->ee_antennaGainMax[1]; + return HAL_OK; + case AR_EEP_ANTGAINMAX_5: + *(int8_t *) val = ee->ee_antennaGainMax[0]; + return HAL_OK; + default: + HALASSERT(0); + return HAL_EINVAL; + } +#undef IS_VERS +#undef CHAN_A_IDX +#undef CHAN_B_IDX +} + +static HAL_BOOL +v14EepromSet(struct ath_hal *ah, int param, int v) +{ + HAL_EEPROM_v14 *ee = AH_PRIVATE(ah)->ah_eeprom; + + switch (param) { + case AR_EEP_ANTGAINMAX_2: + ee->ee_antennaGainMax[1] = (int8_t) v; + return HAL_OK; + case AR_EEP_ANTGAINMAX_5: + ee->ee_antennaGainMax[0] = (int8_t) v; + return HAL_OK; + } + return HAL_EINVAL; +} + +static HAL_BOOL +v14EepromDiag(struct ath_hal *ah, int request, + const void *args, uint32_t argsize, void **result, uint32_t *resultsize) +{ + HAL_EEPROM_v14 *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; +} + +/* XXX conditionalize by target byte order */ +#ifndef bswap16 +static __inline__ uint16_t +__bswap16(uint16_t _x) +{ + return ((uint16_t)( + (((const uint8_t *)(&_x))[0] ) | + (((const uint8_t *)(&_x))[1]<< 8)) + ); +} +#endif + +/* Do structure specific swaps if Eeprom format is non native to host */ +static void +eepromSwap(struct ar5416eeprom *ee) +{ + uint32_t integer, i, j; + uint16_t word; + MODAL_EEP_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 */ + for (j = 0; j < 2; j++) { + pModal = &ee->modalHeader[j]; + + /* XXX linux/ah_osdep.h only defines __bswap32 for BE */ + integer = __bswap32(pModal->antCtrlCommon); + pModal->antCtrlCommon = integer; + + for (i = 0; i < AR5416_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 +v14EepromGetSpurChan(struct ath_hal *ah, int ix, HAL_BOOL is2GHz) +{ + HAL_EEPROM_v14 *ee = AH_PRIVATE(ah)->ah_eeprom; + + HALASSERT(0 <= ix && ix < AR5416_EEPROM_MODAL_SPURS); + return ee->ee_base.modalHeader[is2GHz].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 +v14EepromReadCTLInfo(struct ath_hal *ah, HAL_EEPROM_v14 *ee) +{ + RD_EDGES_POWER *rep = ee->ee_rdEdgesPower; + int i, j; + + HALASSERT(AR5416_NUM_CTLS <= sizeof(ee->ee_rdEdgesPower)/NUM_EDGES); + + for (i = 0; ee->ee_base.ctlIndex[i] != 0 && i < AR5416_NUM_CTLS; i++) { + for (j = 0; j < NUM_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 +v14EepromDetach(struct ath_hal *ah) +{ + HAL_EEPROM_v14 *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_v14EepromAttach(struct ath_hal *ah) +{ +#define NW(a) (sizeof(a) / sizeof(uint16_t)) + HAL_EEPROM_v14 *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_v14)); + if (ee == AH_NULL) { + /* XXX message */ + return HAL_ENOMEM; + } + + eep_data = (uint16_t *)&ee->ee_base; + for (w = 0; w < NW(struct ar5416eeprom); 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); 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)) / 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; + } + + v14EepromReadCTLInfo(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 = v14EepromDetach; + AH_PRIVATE(ah)->ah_eepromGet = v14EepromGet; + AH_PRIVATE(ah)->ah_eepromSet = v14EepromSet; + AH_PRIVATE(ah)->ah_getSpurChan = v14EepromGetSpurChan; + AH_PRIVATE(ah)->ah_eepromDiag = v14EepromDiag; + return HAL_OK; +#undef NW +} |