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/*
* 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: release/9.1.0/sys/dev/ath/ath_hal/ah_eeprom_v14.c 224519 2011-07-30 13:45:12Z adrian $
*/
#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:
*(int16_t *)val = pModal[0].noiseFloorThreshCh[0];
return HAL_OK;
case AR_EEP_NFTHRESH_2:
*(int16_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;
}
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_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:
/* 5ghz fastclock is always enabled for Merlin minor <= 16 */
if (IS_VERS(<=, AR5416_EEP_MINOR_VER_16))
return HAL_OK;
return pBase->fastClk5g ? HAL_OK : HAL_EIO;
case AR_EEP_OL_PWRCTRL:
HALASSERT(val == AH_NULL);
return pBase->openLoopPwrCntl ? HAL_OK : HAL_EIO;
case AR_EEP_DAC_HPWR_5G:
if (IS_VERS(>=, AR5416_EEP_MINOR_VER_20)) {
*(uint8_t *) val = pBase->dacHiPwrMode_5G;
return HAL_OK;
} else
return HAL_EIO;
case AR_EEP_FRAC_N_5G:
if (IS_VERS(>=, AR5416_EEP_MINOR_VER_22)) {
*(uint8_t *) val = pBase->frac_n_5g;
} else
*(uint8_t *) val = 0;
return HAL_OK;
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;
case AR_EEP_PWR_TABLE_OFFSET:
if (IS_VERS(>=, AR5416_EEP_MINOR_VER_21))
*(int8_t *) val = pBase->pwr_table_offset;
else
*(int8_t *) val = AR5416_PWR_TABLE_OFFSET_DB;
return HAL_OK;
case AR_EEP_PWDCLKIND:
if (IS_VERS(>=, AR5416_EEP_MINOR_VER_10)) {
*(uint8_t *) val = pBase->pwdclkind;
return HAL_OK;
}
return HAL_EIO;
default:
HALASSERT(0);
return HAL_EINVAL;
}
#undef IS_VERS
#undef CHAN_A_IDX
#undef CHAN_B_IDX
}
static HAL_STATUS
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;
*resultsize = sizeof(HAL_EEPROM_v14);
return AH_TRUE;
}
return AH_FALSE;
}
/* 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 < 3; i++) {
word = __bswap16(pModal->xpaBiasLvlFreq[i]);
pModal->xpaBiasLvlFreq[i] = word;
}
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)
/*
* Howl is (hopefully) a special case where the endian-ness of the EEPROM
* matches the native endian-ness; and that supplied EEPROMs don't have
* a magic value to check.
*/
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);
/*
* Don't check magic if we're supplied with an EEPROM block,
* typically this is from Howl but it may also be from later
* boards w/ an embedded Merlin.
*/
if (ah->ah_eepromdata == 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 */
/* XXX this is likely incorrect but will do for now to get howl/ap83 working. */
if (ah->ah_eepromdata == NULL && 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
}