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-rw-r--r--ah_eeprom_v14.c415
1 files changed, 415 insertions, 0 deletions
diff --git a/ah_eeprom_v14.c b/ah_eeprom_v14.c
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+++ b/ah_eeprom_v14.c
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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.
+ *
+ * $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
+}
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