ah_eeprom_v3.c.svn-base

最新之atheros芯片driver source code, 基于linux操作系统,內含atheros芯片HAL全部代码

/*
 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
 * Copyright (c) 2002-2008 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_v3.c,v 1.4 2008/11/27 22:39:42 sam Exp $
 */
#include "opt_ah.h"

#include "ah.h"
#include "ah_internal.h"
#include "ah_eeprom_v3.h"

static void
getPcdacInterceptsFromPcdacMinMax(HAL_EEPROM *ee,
	uint16_t pcdacMin, uint16_t pcdacMax, uint16_t *vp)
{
	const static uint16_t intercepts3[] =
		{ 0, 5, 10, 20, 30, 50, 70, 85, 90, 95, 100 };
	const static uint16_t intercepts3_2[] =
		{ 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 };
	const uint16_t *ip = ee->ee_version < AR_EEPROM_VER3_2 ?
		intercepts3 : intercepts3_2;
	int i;

	/* loop for the percentages in steps or 5 */
	for (i = 0; i < NUM_INTERCEPTS; i++ )
		*vp++ = (ip[i] * pcdacMax + (100 - ip[i]) * pcdacMin) / 100;
}

/*
 * Get channel value from binary representation held in eeprom
 */
static uint16_t
fbin2freq(HAL_EEPROM *ee, uint16_t fbin)
{
	if (fbin == CHANNEL_UNUSED)	/* reserved value, don't convert */
		return fbin;
	return ee->ee_version <= AR_EEPROM_VER3_2 ?
		(fbin > 62 ? 5100 + 10*62 + 5*(fbin-62) : 5100 + 10*fbin) :
		4800 + 5*fbin;
}

static uint16_t
fbin2freq_2p4(HAL_EEPROM *ee, uint16_t fbin)
{
	if (fbin == CHANNEL_UNUSED)	/* reserved value, don't convert */
		return fbin;
	return ee->ee_version <= AR_EEPROM_VER3_2 ?
		2400 + fbin :
		2300 + fbin;
}

/*
 * Now copy EEPROM frequency pier contents into the allocated space
 */
static HAL_BOOL
readEepromFreqPierInfo(struct ath_hal *ah, HAL_EEPROM *ee)
{
#define	EEREAD(_off) do {				\
	if (!ath_hal_eepromRead(ah, _off, &eeval))	\
		return AH_FALSE;			\
} while (0)
	uint16_t eeval, off;
	int i;

	if (ee->ee_version >= AR_EEPROM_VER4_0 &&
	    ee->ee_eepMap && !ee->ee_Amode) {
		/*
		 * V4.0 EEPROMs with map type 1 have frequency pier
		 * data only when 11a mode is supported.
		 */
		return AH_TRUE;
	}
	if (ee->ee_version >= AR_EEPROM_VER3_3) {
		off = GROUPS_OFFSET3_3 + GROUP1_OFFSET;
		for (i = 0; i < ee->ee_numChannels11a; i += 2) {
			EEREAD(off++);
			ee->ee_channels11a[i]   = (eeval >> 8) & FREQ_MASK_3_3;
			ee->ee_channels11a[i+1] = eeval & FREQ_MASK_3_3;
		} 
	} else {
		off = GROUPS_OFFSET3_2 + GROUP1_OFFSET;

		EEREAD(off++);
		ee->ee_channels11a[0] = (eeval >> 9) & FREQ_MASK;
		ee->ee_channels11a[1] = (eeval >> 2) & FREQ_MASK;
		ee->ee_channels11a[2] = (eeval << 5) & FREQ_MASK;

		EEREAD(off++);
		ee->ee_channels11a[2] |= (eeval >> 11) & 0x1f;
		ee->ee_channels11a[3]  = (eeval >>  4) & FREQ_MASK;
		ee->ee_channels11a[4]  = (eeval <<  3) & FREQ_MASK;

		EEREAD(off++);
		ee->ee_channels11a[4] |= (eeval >> 13) & 0x7;
		ee->ee_channels11a[5]  = (eeval >>  6) & FREQ_MASK;
		ee->ee_channels11a[6]  = (eeval <<  1) & FREQ_MASK;

		EEREAD(off++);
		ee->ee_channels11a[6] |= (eeval >> 15) & 0x1;
		ee->ee_channels11a[7]  = (eeval >>  8) & FREQ_MASK;
		ee->ee_channels11a[8]  = (eeval >>  1) & FREQ_MASK;
		ee->ee_channels11a[9]  = (eeval <<  6) & FREQ_MASK;

		EEREAD(off++);
		ee->ee_channels11a[9] |= (eeval >> 10) & 0x3f;
	}

	for (i = 0; i < ee->ee_numChannels11a; i++)
		ee->ee_channels11a[i] = fbin2freq(ee, ee->ee_channels11a[i]);

	return AH_TRUE;
#undef EEREAD
}

/*
 * Rev 4 Eeprom 5112 Power Extract Functions
 */

/*
 * Allocate the power information based on the number of channels
 * recorded by the calibration.  These values are then initialized.
 */
static HAL_BOOL
eepromAllocExpnPower5112(struct ath_hal *ah,
	const EEPROM_POWER_5112 *pCalDataset,
	EEPROM_POWER_EXPN_5112 *pPowerExpn)
{
	uint16_t numChannels = pCalDataset->numChannels;
	const uint16_t *pChanList = pCalDataset->pChannels;
	void *data;
	int i, j;

	/* Allocate the channel and Power Data arrays together */
	data = ath_hal_malloc(
		roundup(sizeof(uint16_t) * numChannels, sizeof(uint32_t)) +
		sizeof(EXPN_DATA_PER_CHANNEL_5112) * numChannels);
	if (data == AH_NULL) {
		HALDEBUG(ah, HAL_DEBUG_ANY,
		    "%s unable to allocate raw data struct (gen3)\n", __func__);
		return AH_FALSE;
	}
	pPowerExpn->pChannels = data;
	pPowerExpn->pDataPerChannel = (void *)(((char *)data) +
		roundup(sizeof(uint16_t) * numChannels, sizeof(uint32_t)));

	pPowerExpn->numChannels = numChannels;
	for (i = 0; i < numChannels; i++) {
		pPowerExpn->pChannels[i] =
			pPowerExpn->pDataPerChannel[i].channelValue =
				pChanList[i];
		for (j = 0; j < NUM_XPD_PER_CHANNEL; j++) {
			pPowerExpn->pDataPerChannel[i].pDataPerXPD[j].xpd_gain = j;
			pPowerExpn->pDataPerChannel[i].pDataPerXPD[j].numPcdacs = 0;
		}
		pPowerExpn->pDataPerChannel[i].pDataPerXPD[0].numPcdacs = 4;
		pPowerExpn->pDataPerChannel[i].pDataPerXPD[3].numPcdacs = 3;
	}
	return AH_TRUE;
}

/*
 * Expand the dataSet from the calibration information into the
 * final power structure for 5112
 */
static HAL_BOOL
eepromExpandPower5112(struct ath_hal *ah,
	const EEPROM_POWER_5112 *pCalDataset,
	EEPROM_POWER_EXPN_5112 *pPowerExpn)
{
	int ii, jj, kk;
	int16_t maxPower_t4;
	EXPN_DATA_PER_XPD_5112 *pExpnXPD;
	/* ptr to array of info held per channel */
	const EEPROM_DATA_PER_CHANNEL_5112 *pCalCh;
	uint16_t xgainList[2], xpdMask;

	pPowerExpn->xpdMask = pCalDataset->xpdMask;

	xgainList[0] = 0xDEAD;
	xgainList[1] = 0xDEAD;

	kk = 0;
	xpdMask = pPowerExpn->xpdMask;
	for (jj = 0; jj < NUM_XPD_PER_CHANNEL; jj++) {
		if (((xpdMask >> jj) & 1) > 0) {
			if (kk > 1) {
				HALDEBUG(ah, HAL_DEBUG_ANY,
				    "%s: too many xpdGains in dataset: %u\n",
				    __func__, kk);
				return AH_FALSE;
			}
			xgainList[kk++] = jj;
		}
	}

	pPowerExpn->numChannels = pCalDataset->numChannels;
	if (pPowerExpn->numChannels == 0) {
		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: no channels\n", __func__);
		return AH_FALSE;
	}

	for (ii = 0; ii < pPowerExpn->numChannels; ii++) {
		pCalCh = &pCalDataset->pDataPerChannel[ii];
		pPowerExpn->pDataPerChannel[ii].channelValue =
			pCalCh->channelValue;
		pPowerExpn->pDataPerChannel[ii].maxPower_t4 =
			pCalCh->maxPower_t4;
		maxPower_t4 = pPowerExpn->pDataPerChannel[ii].maxPower_t4;

		for (jj = 0; jj < NUM_XPD_PER_CHANNEL; jj++)
			pPowerExpn->pDataPerChannel[ii].pDataPerXPD[jj].numPcdacs = 0;
		if (xgainList[1] == 0xDEAD) {
			jj = xgainList[0];
			pExpnXPD = &pPowerExpn->pDataPerChannel[ii].pDataPerXPD[jj];
			pExpnXPD->numPcdacs = 4;
			pExpnXPD->pcdac[0] = pCalCh->pcd1_xg0;
			pExpnXPD->pcdac[1] = (uint16_t)
				(pExpnXPD->pcdac[0] + pCalCh->pcd2_delta_xg0);
			pExpnXPD->pcdac[2] = (uint16_t)
				(pExpnXPD->pcdac[1] + pCalCh->pcd3_delta_xg0);
			pExpnXPD->pcdac[3] = (uint16_t)
				(pExpnXPD->pcdac[2] + pCalCh->pcd4_delta_xg0);

			pExpnXPD->pwr_t4[0] = pCalCh->pwr1_xg0;
			pExpnXPD->pwr_t4[1] = pCalCh->pwr2_xg0;
			pExpnXPD->pwr_t4[2] = pCalCh->pwr3_xg0;
			pExpnXPD->pwr_t4[3] = pCalCh->pwr4_xg0;

		} else {
			pPowerExpn->pDataPerChannel[ii].pDataPerXPD[xgainList[0]].pcdac[0] = pCalCh->pcd1_xg0;
			pPowerExpn->pDataPerChannel[ii].pDataPerXPD[xgainList[1]].pcdac[0] = 20;
			pPowerExpn->pDataPerChannel[ii].pDataPerXPD[xgainList[1]].pcdac[1] = 35;
			pPowerExpn->pDataPerChannel[ii].pDataPerXPD[xgainList[1]].pcdac[2] = 63;

			jj = xgainList[0];
			pExpnXPD = &pPowerExpn->pDataPerChannel[ii].pDataPerXPD[jj];
			pExpnXPD->numPcdacs = 4;
			pExpnXPD->pcdac[1] = (uint16_t)
				(pExpnXPD->pcdac[0] + pCalCh->pcd2_delta_xg0);
			pExpnXPD->pcdac[2] = (uint16_t)
				(pExpnXPD->pcdac[1] + pCalCh->pcd3_delta_xg0);
			pExpnXPD->pcdac[3] = (uint16_t)
				(pExpnXPD->pcdac[2] + pCalCh->pcd4_delta_xg0);
			pExpnXPD->pwr_t4[0] = pCalCh->pwr1_xg0;
			pExpnXPD->pwr_t4[1] = pCalCh->pwr2_xg0;
			pExpnXPD->pwr_t4[2] = pCalCh->pwr3_xg0;
			pExpnXPD->pwr_t4[3] = pCalCh->pwr4_xg0;

			jj = xgainList[1];
			pExpnXPD = &pPowerExpn->pDataPerChannel[ii].pDataPerXPD[jj];
			pExpnXPD->numPcdacs = 3;

			pExpnXPD->pwr_t4[0] = pCalCh->pwr1_xg3;
			pExpnXPD->pwr_t4[1] = pCalCh->pwr2_xg3;
			pExpnXPD->pwr_t4[2] = pCalCh->pwr3_xg3;
		}
	}
	return AH_TRUE;
}

static HAL_BOOL
readEepromRawPowerCalInfo5112(struct ath_hal *ah, HAL_EEPROM *ee)
{
#define	EEREAD(_off) do {				\
	if (!ath_hal_eepromRead(ah, _off, &eeval))	\
		return AH_FALSE;			\
} while (0)
	const uint16_t dbmmask		 = 0xff;
	const uint16_t pcdac_delta_mask = 0x1f;
	const uint16_t pcdac_mask	 = 0x3f;
	const uint16_t freqmask	 = 0xff;

	int i, mode, numPiers;
	uint32_t off;
	uint16_t eeval;
	uint16_t freq[NUM_11A_EEPROM_CHANNELS];
        EEPROM_POWER_5112 eePower;

	HALASSERT(ee->ee_version >= AR_EEPROM_VER4_0);
	off = GROUPS_OFFSET3_3;
	for (mode = headerInfo11A; mode <= headerInfo11G; mode++) {
		numPiers = 0;
		switch (mode) {
		case headerInfo11A:
			if (!ee->ee_Amode)	/* no 11a calibration data */
				continue;
			while (numPiers < NUM_11A_EEPROM_CHANNELS) {
				EEREAD(off++);
				if ((eeval & freqmask) == 0)
					break;
				freq[numPiers++] = fbin2freq(ee,
					eeval & freqmask);

				if (((eeval >> 8) & freqmask) == 0)
					break;
				freq[numPiers++] = fbin2freq(ee,
					(eeval>>8) & freqmask);
			}
			break;
		case headerInfo11B:
			if (!ee->ee_Bmode)	/* no 11b calibration data */
				continue;
			for (i = 0; i < NUM_2_4_EEPROM_CHANNELS; i++)
				if (ee->ee_calPier11b[i] != CHANNEL_UNUSED)
					freq[numPiers++] = ee->ee_calPier11b[i];
			break;
		case headerInfo11G:
			if (!ee->ee_Gmode)	/* no 11g calibration data */
				continue;
			for (i = 0; i < NUM_2_4_EEPROM_CHANNELS; i++)
				if (ee->ee_calPier11g[i] != CHANNEL_UNUSED)
					freq[numPiers++] = ee->ee_calPier11g[i];
			break;
		default:
			HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid mode 0x%x\n",
			    __func__, mode);
			return AH_FALSE;
		}

		OS_MEMZERO(&eePower, sizeof(eePower));
		eePower.numChannels = numPiers;

		for (i = 0; i < numPiers; i++) {
			eePower.pChannels[i] = freq[i];
			eePower.pDataPerChannel[i].channelValue = freq[i];

			EEREAD(off++);
			eePower.pDataPerChannel[i].pwr1_xg0 = (int16_t)
				((eeval & dbmmask) - ((eeval >> 7) & 0x1)*256);
			eePower.pDataPerChannel[i].pwr2_xg0 = (int16_t)
				(((eeval >> 8) & dbmmask) - ((eeval >> 15) & 0x1)*256);

			EEREAD(off++);
			eePower.pDataPerChannel[i].pwr3_xg0 = (int16_t)
				((eeval & dbmmask) - ((eeval >> 7) & 0x1)*256);
			eePower.pDataPerChannel[i].pwr4_xg0 = (int16_t)
				(((eeval >> 8) & dbmmask) - ((eeval >> 15) & 0x1)*256);

			EEREAD(off++);
			eePower.pDataPerChannel[i].pcd2_delta_xg0 = (uint16_t)
				(eeval & pcdac_delta_mask);
			eePower.pDataPerChannel[i].pcd3_delta_xg0 = (uint16_t)
				((eeval >> 5) & pcdac_delta_mask);
			eePower.pDataPerChannel[i].pcd4_delta_xg0 = (uint16_t)
				((eeval >> 10) & pcdac_delta_mask);

			EEREAD(off++);
			eePower.pDataPerChannel[i].pwr1_xg3 = (int16_t)
				((eeval & dbmmask) - ((eeval >> 7) & 0x1)*256);
			eePower.pDataPerChannel[i].pwr2_xg3 = (int16_t)
				(((eeval >> 8) & dbmmask) - ((eeval >> 15) & 0x1)*256);

			EEREAD(off++);
			eePower.pDataPerChannel[i].pwr3_xg3 = (int16_t)
				((eeval & dbmmask) - ((eeval >> 7) & 0x1)*256);
			if (ee->ee_version >= AR_EEPROM_VER4_3) {
				eePower.pDataPerChannel[i].maxPower_t4 =
					eePower.pDataPerChannel[i].pwr4_xg0;     
				eePower.pDataPerChannel[i].pcd1_xg0 = (uint16_t)
					((eeval >> 8) & pcdac_mask);
			} else {
				eePower.pDataPerChannel[i].maxPower_t4 = (int16_t)
					(((eeval >> 8) & dbmmask) -
					 ((eeval >> 15) & 0x1)*256);
				eePower.pDataPerChannel[i].pcd1_xg0 = 1;
			}
		}
		eePower.xpdMask = ee->ee_xgain[mode];

		if (!eepromAllocExpnPower5112(ah, &eePower, &ee->ee_modePowerArray5112[mode])) {
			HALDEBUG(ah, HAL_DEBUG_ANY,
			    "%s: did not allocate power struct\n", __func__);
			return AH_FALSE;
                }
                if (!eepromExpandPower5112(ah, &eePower, &ee->ee_modePowerArray5112[mode])) {
			HALDEBUG(ah, HAL_DEBUG_ANY,
			    "%s: did not expand power struct\n", __func__);
			return AH_FALSE;
		}
	}
	return AH_TRUE;
#undef EEREAD
}

static void
freeEepromRawPowerCalInfo5112(struct ath_hal *ah, HAL_EEPROM *ee)
{
	int mode;
	void *data;

	for (mode = headerInfo11A; mode <= headerInfo11G; mode++) {
		EEPROM_POWER_EXPN_5112 *pPowerExpn =
			&ee->ee_modePowerArray5112[mode];
		data = pPowerExpn->pChannels;
		if (data != AH_NULL) {
			pPowerExpn->pChannels = AH_NULL;
			ath_hal_free(data);
		}
	}
}

static void
ar2413SetupEEPROMDataset(EEPROM_DATA_STRUCT_2413 *pEEPROMDataset2413,
	uint16_t myNumRawChannels, uint16_t *pMyRawChanList)
{
	uint16_t i, channelValue;
	uint32_t xpd_mask;
	uint16_t numPdGainsUsed;

	pEEPROMDataset2413->numChannels = myNumRawChannels;

	xpd_mask = pEEPROMDataset2413->xpd_mask;
	numPdGainsUsed = 0;
	if ((xpd_mask >> 0) & 0x1) numPdGainsUsed++;
	if ((xpd_mask >> 1) & 0x1) numPdGainsUsed++;
	if ((xpd_mask >> 2) & 0x1) numPdGainsUsed++;
	if ((xpd_mask >> 3) & 0x1) numPdGainsUsed++;

	for (i = 0; i < myNumRawChannels; i++) {
		channelValue = pMyRawChanList[i];
		pEEPROMDataset2413->pChannels[i] = channelValue;
		pEEPROMDataset2413->pDataPerChannel[i].channelValue = channelValue;
		pEEPROMDataset2413->pDataPerChannel[i].numPdGains = numPdGainsUsed;
	}
}

static HAL_BOOL
ar2413ReadCalDataset(struct ath_hal *ah, HAL_EEPROM *ee,
	EEPROM_DATA_STRUCT_2413 *pCalDataset,
	uint32_t start_offset, uint32_t maxPiers, uint8_t mode)
{
#define	EEREAD(_off) do {				\
	if (!ath_hal_eepromRead(ah, _off, &eeval))	\
		return AH_FALSE;			\
} while (0)
	const uint16_t dbm_I_mask = 0x1F;	/* 5-bits. 1dB step. */
	const uint16_t dbm_delta_mask = 0xF;	/* 4-bits. 0.5dB step. */
	const uint16_t Vpd_I_mask = 0x7F;	/* 7-bits. 0-128 */
	const uint16_t Vpd_delta_mask = 0x3F;	/* 6-bits. 0-63 */
	const uint16_t freqmask = 0xff;

	uint16_t ii, eeval;
	uint16_t idx, numPiers;
	uint16_t freq[NUM_11A_EEPROM_CHANNELS];

	idx = start_offset;
    for (numPiers = 0; numPiers < maxPiers;) {
        EEREAD(idx++);
        if ((eeval & freqmask) == 0)
            break;
        if (mode == headerInfo11A)
            freq[numPiers++] = fbin2freq(ee, (eeval & freqmask));
        else
            freq[numPiers++] = fbin2freq_2p4(ee, (eeval & freqmask));
                                                                                          
        if (((eeval >> 8) & freqmask) == 0)
            break;