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freebsd-skq/sys/dev/ath/ath_hal/ah.c
adrian 7be92c60b6 fix ht/40 configuration for ar9331 (hornet). 
The synth programming here requires the real centre frequency,
which for HT20 channels is the normal channel, but HT40 is
/not/ the primary channel.  Everything else was using 'freq',
which is the correct centre frequency, but the hornet config
was using 'ichan' to do the lookup which was also the primary
channel.

So, modify the HAL call that does the mapping to take a frequency
in MHz and return the channel number.

Tested:

* Carambola 2, AR9331, tested both HT/20 and HT/40 operation.
2015-11-30 06:26:59 +00:00

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/*
* Copyright (c) 2002-2009 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.
*
* $FreeBSD$
*/
#include "opt_ah.h"
#include "ah.h"
#include "ah_internal.h"
#include "ah_devid.h"
#include "ah_eeprom.h" /* for 5ghz fast clock flag */
#include "ar5416/ar5416reg.h" /* NB: includes ar5212reg.h */
#include "ar9003/ar9300_devid.h"
/* linker set of registered chips */
OS_SET_DECLARE(ah_chips, struct ath_hal_chip);
/*
* Check the set of registered chips to see if any recognize
* the device as one they can support.
*/
const char*
ath_hal_probe(uint16_t vendorid, uint16_t devid)
{
struct ath_hal_chip * const *pchip;
OS_SET_FOREACH(pchip, ah_chips) {
const char *name = (*pchip)->probe(vendorid, devid);
if (name != AH_NULL)
return name;
}
return AH_NULL;
}
/*
* Attach detects device chip revisions, initializes the hwLayer
* function list, reads EEPROM information,
* selects reset vectors, and performs a short self test.
* Any failures will return an error that should cause a hardware
* disable.
*/
struct ath_hal*
ath_hal_attach(uint16_t devid, HAL_SOFTC sc,
HAL_BUS_TAG st, HAL_BUS_HANDLE sh, uint16_t *eepromdata,
HAL_OPS_CONFIG *ah_config,
HAL_STATUS *error)
{
struct ath_hal_chip * const *pchip;
OS_SET_FOREACH(pchip, ah_chips) {
struct ath_hal_chip *chip = *pchip;
struct ath_hal *ah;
/* XXX don't have vendorid, assume atheros one works */
if (chip->probe(ATHEROS_VENDOR_ID, devid) == AH_NULL)
continue;
ah = chip->attach(devid, sc, st, sh, eepromdata, ah_config,
error);
if (ah != AH_NULL) {
/* copy back private state to public area */
ah->ah_devid = AH_PRIVATE(ah)->ah_devid;
ah->ah_subvendorid = AH_PRIVATE(ah)->ah_subvendorid;
ah->ah_macVersion = AH_PRIVATE(ah)->ah_macVersion;
ah->ah_macRev = AH_PRIVATE(ah)->ah_macRev;
ah->ah_phyRev = AH_PRIVATE(ah)->ah_phyRev;
ah->ah_analog5GhzRev = AH_PRIVATE(ah)->ah_analog5GhzRev;
ah->ah_analog2GhzRev = AH_PRIVATE(ah)->ah_analog2GhzRev;
return ah;
}
}
return AH_NULL;
}
const char *
ath_hal_mac_name(struct ath_hal *ah)
{
switch (ah->ah_macVersion) {
case AR_SREV_VERSION_CRETE:
case AR_SREV_VERSION_MAUI_1:
return "5210";
case AR_SREV_VERSION_MAUI_2:
case AR_SREV_VERSION_OAHU:
return "5211";
case AR_SREV_VERSION_VENICE:
return "5212";
case AR_SREV_VERSION_GRIFFIN:
return "2413";
case AR_SREV_VERSION_CONDOR:
return "5424";
case AR_SREV_VERSION_EAGLE:
return "5413";
case AR_SREV_VERSION_COBRA:
return "2415";
case AR_SREV_2425: /* Swan */
return "2425";
case AR_SREV_2417: /* Nala */
return "2417";
case AR_XSREV_VERSION_OWL_PCI:
return "5416";
case AR_XSREV_VERSION_OWL_PCIE:
return "5418";
case AR_XSREV_VERSION_HOWL:
return "9130";
case AR_XSREV_VERSION_SOWL:
return "9160";
case AR_XSREV_VERSION_MERLIN:
if (AH_PRIVATE(ah)->ah_ispcie)
return "9280";
return "9220";
case AR_XSREV_VERSION_KITE:
return "9285";
case AR_XSREV_VERSION_KIWI:
if (AH_PRIVATE(ah)->ah_ispcie)
return "9287";
return "9227";
case AR_SREV_VERSION_AR9380:
if (ah->ah_macRev >= AR_SREV_REVISION_AR9580_10)
return "9580";
return "9380";
case AR_SREV_VERSION_AR9460:
return "9460";
case AR_SREV_VERSION_AR9330:
return "9330";
case AR_SREV_VERSION_AR9340:
return "9340";
case AR_SREV_VERSION_QCA9550:
/* XXX should say QCA, not AR */
return "9550";
case AR_SREV_VERSION_AR9485:
return "9485";
case AR_SREV_VERSION_QCA9565:
/* XXX should say QCA, not AR */
return "9565";
case AR_SREV_VERSION_QCA9530:
/* XXX should say QCA, not AR */
return "9530";
}
return "????";
}
/*
* Return the mask of available modes based on the hardware capabilities.
*/
u_int
ath_hal_getwirelessmodes(struct ath_hal*ah)
{
return ath_hal_getWirelessModes(ah);
}
/* linker set of registered RF backends */
OS_SET_DECLARE(ah_rfs, struct ath_hal_rf);
/*
* Check the set of registered RF backends to see if
* any recognize the device as one they can support.
*/
struct ath_hal_rf *
ath_hal_rfprobe(struct ath_hal *ah, HAL_STATUS *ecode)
{
struct ath_hal_rf * const *prf;
OS_SET_FOREACH(prf, ah_rfs) {
struct ath_hal_rf *rf = *prf;
if (rf->probe(ah))
return rf;
}
*ecode = HAL_ENOTSUPP;
return AH_NULL;
}
const char *
ath_hal_rf_name(struct ath_hal *ah)
{
switch (ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR) {
case 0: /* 5210 */
return "5110"; /* NB: made up */
case AR_RAD5111_SREV_MAJOR:
case AR_RAD5111_SREV_PROD:
return "5111";
case AR_RAD2111_SREV_MAJOR:
return "2111";
case AR_RAD5112_SREV_MAJOR:
case AR_RAD5112_SREV_2_0:
case AR_RAD5112_SREV_2_1:
return "5112";
case AR_RAD2112_SREV_MAJOR:
case AR_RAD2112_SREV_2_0:
case AR_RAD2112_SREV_2_1:
return "2112";
case AR_RAD2413_SREV_MAJOR:
return "2413";
case AR_RAD5413_SREV_MAJOR:
return "5413";
case AR_RAD2316_SREV_MAJOR:
return "2316";
case AR_RAD2317_SREV_MAJOR:
return "2317";
case AR_RAD5424_SREV_MAJOR:
return "5424";
case AR_RAD5133_SREV_MAJOR:
return "5133";
case AR_RAD2133_SREV_MAJOR:
return "2133";
case AR_RAD5122_SREV_MAJOR:
return "5122";
case AR_RAD2122_SREV_MAJOR:
return "2122";
}
return "????";
}
/*
* Poll the register looking for a specific value.
*/
HAL_BOOL
ath_hal_wait(struct ath_hal *ah, u_int reg, uint32_t mask, uint32_t val)
{
#define AH_TIMEOUT 1000
return ath_hal_waitfor(ah, reg, mask, val, AH_TIMEOUT);
#undef AH_TIMEOUT
}
HAL_BOOL
ath_hal_waitfor(struct ath_hal *ah, u_int reg, uint32_t mask, uint32_t val, uint32_t timeout)
{
int i;
for (i = 0; i < timeout; i++) {
if ((OS_REG_READ(ah, reg) & mask) == val)
return AH_TRUE;
OS_DELAY(10);
}
HALDEBUG(ah, HAL_DEBUG_REGIO | HAL_DEBUG_PHYIO,
"%s: timeout on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
__func__, reg, OS_REG_READ(ah, reg), mask, val);
return AH_FALSE;
}
/*
* Reverse the bits starting at the low bit for a value of
* bit_count in size
*/
uint32_t
ath_hal_reverseBits(uint32_t val, uint32_t n)
{
uint32_t retval;
int i;
for (i = 0, retval = 0; i < n; i++) {
retval = (retval << 1) | (val & 1);
val >>= 1;
}
return retval;
}
/* 802.11n related timing definitions */
#define OFDM_PLCP_BITS 22
#define HT_L_STF 8
#define HT_L_LTF 8
#define HT_L_SIG 4
#define HT_SIG 8
#define HT_STF 4
#define HT_LTF(n) ((n) * 4)
#define HT_RC_2_MCS(_rc) ((_rc) & 0xf)
#define HT_RC_2_STREAMS(_rc) ((((_rc) & 0x78) >> 3) + 1)
#define IS_HT_RATE(_rc) ( (_rc) & IEEE80211_RATE_MCS)
/*
* Calculate the duration of a packet whether it is 11n or legacy.
*/
uint32_t
ath_hal_pkt_txtime(struct ath_hal *ah, const HAL_RATE_TABLE *rates, uint32_t frameLen,
uint16_t rateix, HAL_BOOL isht40, HAL_BOOL shortPreamble)
{
uint8_t rc;
int numStreams;
rc = rates->info[rateix].rateCode;
/* Legacy rate? Return the old way */
if (! IS_HT_RATE(rc))
return ath_hal_computetxtime(ah, rates, frameLen, rateix, shortPreamble);
/* 11n frame - extract out the number of spatial streams */
numStreams = HT_RC_2_STREAMS(rc);
KASSERT(numStreams > 0 && numStreams <= 4,
("number of spatial streams needs to be 1..3: MCS rate 0x%x!",
rateix));
return ath_computedur_ht(frameLen, rc, numStreams, isht40, shortPreamble);
}
static const uint16_t ht20_bps[32] = {
26, 52, 78, 104, 156, 208, 234, 260,
52, 104, 156, 208, 312, 416, 468, 520,
78, 156, 234, 312, 468, 624, 702, 780,
104, 208, 312, 416, 624, 832, 936, 1040
};
static const uint16_t ht40_bps[32] = {
54, 108, 162, 216, 324, 432, 486, 540,
108, 216, 324, 432, 648, 864, 972, 1080,
162, 324, 486, 648, 972, 1296, 1458, 1620,
216, 432, 648, 864, 1296, 1728, 1944, 2160
};
/*
* Calculate the transmit duration of an 11n frame.
*/
uint32_t
ath_computedur_ht(uint32_t frameLen, uint16_t rate, int streams,
HAL_BOOL isht40, HAL_BOOL isShortGI)
{
uint32_t bitsPerSymbol, numBits, numSymbols, txTime;
KASSERT(rate & IEEE80211_RATE_MCS, ("not mcs %d", rate));
KASSERT((rate &~ IEEE80211_RATE_MCS) < 31, ("bad mcs 0x%x", rate));
if (isht40)
bitsPerSymbol = ht40_bps[rate & 0x1f];
else
bitsPerSymbol = ht20_bps[rate & 0x1f];
numBits = OFDM_PLCP_BITS + (frameLen << 3);
numSymbols = howmany(numBits, bitsPerSymbol);
if (isShortGI)
txTime = ((numSymbols * 18) + 4) / 5; /* 3.6us */
else
txTime = numSymbols * 4; /* 4us */
return txTime + HT_L_STF + HT_L_LTF +
HT_L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
}
/*
* Compute the time to transmit a frame of length frameLen bytes
* using the specified rate, phy, and short preamble setting.
*/
uint16_t
ath_hal_computetxtime(struct ath_hal *ah,
const HAL_RATE_TABLE *rates, uint32_t frameLen, uint16_t rateix,
HAL_BOOL shortPreamble)
{
uint32_t bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
uint32_t kbps;
/* Warn if this function is called for 11n rates; it should not be! */
if (IS_HT_RATE(rates->info[rateix].rateCode))
ath_hal_printf(ah, "%s: MCS rate? (index %d; hwrate 0x%x)\n",
__func__, rateix, rates->info[rateix].rateCode);
kbps = rates->info[rateix].rateKbps;
/*
* index can be invalid duting dynamic Turbo transitions.
* XXX
*/
if (kbps == 0)
return 0;
switch (rates->info[rateix].phy) {
case IEEE80211_T_CCK:
phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
if (shortPreamble && rates->info[rateix].shortPreamble)
phyTime >>= 1;
numBits = frameLen << 3;
txTime = CCK_SIFS_TIME + phyTime
+ ((numBits * 1000)/kbps);
break;
case IEEE80211_T_OFDM:
bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
HALASSERT(bitsPerSymbol != 0);
numBits = OFDM_PLCP_BITS + (frameLen << 3);
numSymbols = howmany(numBits, bitsPerSymbol);
txTime = OFDM_SIFS_TIME
+ OFDM_PREAMBLE_TIME
+ (numSymbols * OFDM_SYMBOL_TIME);
break;
case IEEE80211_T_OFDM_HALF:
bitsPerSymbol = (kbps * OFDM_HALF_SYMBOL_TIME) / 1000;
HALASSERT(bitsPerSymbol != 0);
numBits = OFDM_HALF_PLCP_BITS + (frameLen << 3);
numSymbols = howmany(numBits, bitsPerSymbol);
txTime = OFDM_HALF_SIFS_TIME
+ OFDM_HALF_PREAMBLE_TIME
+ (numSymbols * OFDM_HALF_SYMBOL_TIME);
break;
case IEEE80211_T_OFDM_QUARTER:
bitsPerSymbol = (kbps * OFDM_QUARTER_SYMBOL_TIME) / 1000;
HALASSERT(bitsPerSymbol != 0);
numBits = OFDM_QUARTER_PLCP_BITS + (frameLen << 3);
numSymbols = howmany(numBits, bitsPerSymbol);
txTime = OFDM_QUARTER_SIFS_TIME
+ OFDM_QUARTER_PREAMBLE_TIME
+ (numSymbols * OFDM_QUARTER_SYMBOL_TIME);
break;
case IEEE80211_T_TURBO:
bitsPerSymbol = (kbps * TURBO_SYMBOL_TIME) / 1000;
HALASSERT(bitsPerSymbol != 0);
numBits = TURBO_PLCP_BITS + (frameLen << 3);
numSymbols = howmany(numBits, bitsPerSymbol);
txTime = TURBO_SIFS_TIME
+ TURBO_PREAMBLE_TIME
+ (numSymbols * TURBO_SYMBOL_TIME);
break;
default:
HALDEBUG(ah, HAL_DEBUG_PHYIO,
"%s: unknown phy %u (rate ix %u)\n",
__func__, rates->info[rateix].phy, rateix);
txTime = 0;
break;
}
return txTime;
}
int
ath_hal_get_curmode(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
/*
* Pick a default mode at bootup. A channel change is inevitable.
*/
if (!chan)
return HAL_MODE_11NG_HT20;
if (IEEE80211_IS_CHAN_TURBO(chan))
return HAL_MODE_TURBO;
/* check for NA_HT before plain A, since IS_CHAN_A includes NA_HT */
if (IEEE80211_IS_CHAN_5GHZ(chan) && IEEE80211_IS_CHAN_HT20(chan))
return HAL_MODE_11NA_HT20;
if (IEEE80211_IS_CHAN_5GHZ(chan) && IEEE80211_IS_CHAN_HT40U(chan))
return HAL_MODE_11NA_HT40PLUS;
if (IEEE80211_IS_CHAN_5GHZ(chan) && IEEE80211_IS_CHAN_HT40D(chan))
return HAL_MODE_11NA_HT40MINUS;
if (IEEE80211_IS_CHAN_A(chan))
return HAL_MODE_11A;
/* check for NG_HT before plain G, since IS_CHAN_G includes NG_HT */
if (IEEE80211_IS_CHAN_2GHZ(chan) && IEEE80211_IS_CHAN_HT20(chan))
return HAL_MODE_11NG_HT20;
if (IEEE80211_IS_CHAN_2GHZ(chan) && IEEE80211_IS_CHAN_HT40U(chan))
return HAL_MODE_11NG_HT40PLUS;
if (IEEE80211_IS_CHAN_2GHZ(chan) && IEEE80211_IS_CHAN_HT40D(chan))
return HAL_MODE_11NG_HT40MINUS;
/*
* XXX For FreeBSD, will this work correctly given the DYN
* chan mode (OFDM+CCK dynamic) ? We have pure-G versions DYN-BG..
*/
if (IEEE80211_IS_CHAN_G(chan))
return HAL_MODE_11G;
if (IEEE80211_IS_CHAN_B(chan))
return HAL_MODE_11B;
HALASSERT(0);
return HAL_MODE_11NG_HT20;
}
typedef enum {
WIRELESS_MODE_11a = 0,
WIRELESS_MODE_TURBO = 1,
WIRELESS_MODE_11b = 2,
WIRELESS_MODE_11g = 3,
WIRELESS_MODE_108g = 4,
WIRELESS_MODE_MAX
} WIRELESS_MODE;
static WIRELESS_MODE
ath_hal_chan2wmode(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
if (IEEE80211_IS_CHAN_B(chan))
return WIRELESS_MODE_11b;
if (IEEE80211_IS_CHAN_G(chan))
return WIRELESS_MODE_11g;
if (IEEE80211_IS_CHAN_108G(chan))
return WIRELESS_MODE_108g;
if (IEEE80211_IS_CHAN_TURBO(chan))
return WIRELESS_MODE_TURBO;
return WIRELESS_MODE_11a;
}
/*
* Convert between microseconds and core system clocks.
*/
/* 11a Turbo 11b 11g 108g */
static const uint8_t CLOCK_RATE[] = { 40, 80, 22, 44, 88 };
#define CLOCK_FAST_RATE_5GHZ_OFDM 44
u_int
ath_hal_mac_clks(struct ath_hal *ah, u_int usecs)
{
const struct ieee80211_channel *c = AH_PRIVATE(ah)->ah_curchan;
u_int clks;
/* NB: ah_curchan may be null when called attach time */
/* XXX merlin and later specific workaround - 5ghz fast clock is 44 */
if (c != AH_NULL && IS_5GHZ_FAST_CLOCK_EN(ah, c)) {
clks = usecs * CLOCK_FAST_RATE_5GHZ_OFDM;
if (IEEE80211_IS_CHAN_HT40(c))
clks <<= 1;
} else if (c != AH_NULL) {
clks = usecs * CLOCK_RATE[ath_hal_chan2wmode(ah, c)];
if (IEEE80211_IS_CHAN_HT40(c))
clks <<= 1;
} else
clks = usecs * CLOCK_RATE[WIRELESS_MODE_11b];
/* Compensate for half/quarter rate */
if (c != AH_NULL && IEEE80211_IS_CHAN_HALF(c))
clks = clks / 2;
else if (c != AH_NULL && IEEE80211_IS_CHAN_QUARTER(c))
clks = clks / 4;
return clks;
}
u_int
ath_hal_mac_usec(struct ath_hal *ah, u_int clks)
{
const struct ieee80211_channel *c = AH_PRIVATE(ah)->ah_curchan;
u_int usec;
/* NB: ah_curchan may be null when called attach time */
/* XXX merlin and later specific workaround - 5ghz fast clock is 44 */
if (c != AH_NULL && IS_5GHZ_FAST_CLOCK_EN(ah, c)) {
usec = clks / CLOCK_FAST_RATE_5GHZ_OFDM;
if (IEEE80211_IS_CHAN_HT40(c))
usec >>= 1;
} else if (c != AH_NULL) {
usec = clks / CLOCK_RATE[ath_hal_chan2wmode(ah, c)];
if (IEEE80211_IS_CHAN_HT40(c))
usec >>= 1;
} else
usec = clks / CLOCK_RATE[WIRELESS_MODE_11b];
return usec;
}
/*
* Setup a h/w rate table's reverse lookup table and
* fill in ack durations. This routine is called for
* each rate table returned through the ah_getRateTable
* method. The reverse lookup tables are assumed to be
* initialized to zero (or at least the first entry).
* We use this as a key that indicates whether or not
* we've previously setup the reverse lookup table.
*
* XXX not reentrant, but shouldn't matter
*/
void
ath_hal_setupratetable(struct ath_hal *ah, HAL_RATE_TABLE *rt)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
int i;
if (rt->rateCodeToIndex[0] != 0) /* already setup */
return;
for (i = 0; i < N(rt->rateCodeToIndex); i++)
rt->rateCodeToIndex[i] = (uint8_t) -1;
for (i = 0; i < rt->rateCount; i++) {
uint8_t code = rt->info[i].rateCode;
uint8_t cix = rt->info[i].controlRate;
HALASSERT(code < N(rt->rateCodeToIndex));
rt->rateCodeToIndex[code] = i;
HALASSERT((code | rt->info[i].shortPreamble) <
N(rt->rateCodeToIndex));
rt->rateCodeToIndex[code | rt->info[i].shortPreamble] = i;
/*
* XXX for 11g the control rate to use for 5.5 and 11 Mb/s
* depends on whether they are marked as basic rates;
* the static tables are setup with an 11b-compatible
* 2Mb/s rate which will work but is suboptimal
*/
rt->info[i].lpAckDuration = ath_hal_computetxtime(ah, rt,
WLAN_CTRL_FRAME_SIZE, cix, AH_FALSE);
rt->info[i].spAckDuration = ath_hal_computetxtime(ah, rt,
WLAN_CTRL_FRAME_SIZE, cix, AH_TRUE);
}
#undef N
}
HAL_STATUS
ath_hal_getcapability(struct ath_hal *ah, HAL_CAPABILITY_TYPE type,
uint32_t capability, uint32_t *result)
{
const HAL_CAPABILITIES *pCap = &AH_PRIVATE(ah)->ah_caps;
switch (type) {
case HAL_CAP_REG_DMN: /* regulatory domain */
*result = AH_PRIVATE(ah)->ah_currentRD;
return HAL_OK;
case HAL_CAP_DFS_DMN: /* DFS Domain */
*result = AH_PRIVATE(ah)->ah_dfsDomain;
return HAL_OK;
case HAL_CAP_CIPHER: /* cipher handled in hardware */
case HAL_CAP_TKIP_MIC: /* handle TKIP MIC in hardware */
return HAL_ENOTSUPP;
case HAL_CAP_TKIP_SPLIT: /* hardware TKIP uses split keys */
return HAL_ENOTSUPP;
case HAL_CAP_PHYCOUNTERS: /* hardware PHY error counters */
return pCap->halHwPhyCounterSupport ? HAL_OK : HAL_ENXIO;
case HAL_CAP_WME_TKIPMIC: /* hardware can do TKIP MIC when WMM is turned on */
return HAL_ENOTSUPP;
case HAL_CAP_DIVERSITY: /* hardware supports fast diversity */
return HAL_ENOTSUPP;
case HAL_CAP_KEYCACHE_SIZE: /* hardware key cache size */
*result = pCap->halKeyCacheSize;
return HAL_OK;
case HAL_CAP_NUM_TXQUEUES: /* number of hardware tx queues */
*result = pCap->halTotalQueues;
return HAL_OK;
case HAL_CAP_VEOL: /* hardware supports virtual EOL */
return pCap->halVEOLSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_PSPOLL: /* hardware PS-Poll support works */
return pCap->halPSPollBroken ? HAL_ENOTSUPP : HAL_OK;
case HAL_CAP_COMPRESSION:
return pCap->halCompressSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_BURST:
return pCap->halBurstSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_FASTFRAME:
return pCap->halFastFramesSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_DIAG: /* hardware diagnostic support */
*result = AH_PRIVATE(ah)->ah_diagreg;
return HAL_OK;
case HAL_CAP_TXPOW: /* global tx power limit */
switch (capability) {
case 0: /* facility is supported */
return HAL_OK;
case 1: /* current limit */
*result = AH_PRIVATE(ah)->ah_powerLimit;
return HAL_OK;
case 2: /* current max tx power */
*result = AH_PRIVATE(ah)->ah_maxPowerLevel;
return HAL_OK;
case 3: /* scale factor */
*result = AH_PRIVATE(ah)->ah_tpScale;
return HAL_OK;
}
return HAL_ENOTSUPP;
case HAL_CAP_BSSIDMASK: /* hardware supports bssid mask */
return pCap->halBssIdMaskSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_MCAST_KEYSRCH: /* multicast frame keycache search */
return pCap->halMcastKeySrchSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_TSF_ADJUST: /* hardware has beacon tsf adjust */
return HAL_ENOTSUPP;
case HAL_CAP_RFSILENT: /* rfsilent support */
switch (capability) {
case 0: /* facility is supported */
return pCap->halRfSilentSupport ? HAL_OK : HAL_ENOTSUPP;
case 1: /* current setting */
return AH_PRIVATE(ah)->ah_rfkillEnabled ?
HAL_OK : HAL_ENOTSUPP;
case 2: /* rfsilent config */
*result = AH_PRIVATE(ah)->ah_rfsilent;
return HAL_OK;
}
return HAL_ENOTSUPP;
case HAL_CAP_11D:
return HAL_OK;
case HAL_CAP_HT:
return pCap->halHTSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_GTXTO:
return pCap->halGTTSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_FAST_CC:
return pCap->halFastCCSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_TX_CHAINMASK: /* mask of TX chains supported */
*result = pCap->halTxChainMask;
return HAL_OK;
case HAL_CAP_RX_CHAINMASK: /* mask of RX chains supported */
*result = pCap->halRxChainMask;
return HAL_OK;
case HAL_CAP_NUM_GPIO_PINS:
*result = pCap->halNumGpioPins;
return HAL_OK;
case HAL_CAP_CST:
return pCap->halCSTSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_RTS_AGGR_LIMIT:
*result = pCap->halRtsAggrLimit;
return HAL_OK;
case HAL_CAP_4ADDR_AGGR:
return pCap->hal4AddrAggrSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_EXT_CHAN_DFS:
return pCap->halExtChanDfsSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_RX_STBC:
return pCap->halRxStbcSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_TX_STBC:
return pCap->halTxStbcSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_COMBINED_RADAR_RSSI:
return pCap->halUseCombinedRadarRssi ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_AUTO_SLEEP:
return pCap->halAutoSleepSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_MBSSID_AGGR_SUPPORT:
return pCap->halMbssidAggrSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_SPLIT_4KB_TRANS: /* hardware handles descriptors straddling 4k page boundary */
return pCap->hal4kbSplitTransSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_REG_FLAG:
*result = AH_PRIVATE(ah)->ah_currentRDext;
return HAL_OK;
case HAL_CAP_ENHANCED_DMA_SUPPORT:
return pCap->halEnhancedDmaSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_NUM_TXMAPS:
*result = pCap->halNumTxMaps;
return HAL_OK;
case HAL_CAP_TXDESCLEN:
*result = pCap->halTxDescLen;
return HAL_OK;
case HAL_CAP_TXSTATUSLEN:
*result = pCap->halTxStatusLen;
return HAL_OK;
case HAL_CAP_RXSTATUSLEN:
*result = pCap->halRxStatusLen;
return HAL_OK;
case HAL_CAP_RXFIFODEPTH:
switch (capability) {
case HAL_RX_QUEUE_HP:
*result = pCap->halRxHpFifoDepth;
return HAL_OK;
case HAL_RX_QUEUE_LP:
*result = pCap->halRxLpFifoDepth;
return HAL_OK;
default:
return HAL_ENOTSUPP;
}
case HAL_CAP_RXBUFSIZE:
case HAL_CAP_NUM_MR_RETRIES:
*result = pCap->halNumMRRetries;
return HAL_OK;
case HAL_CAP_BT_COEX:
return pCap->halBtCoexSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_SPECTRAL_SCAN:
return pCap->halSpectralScanSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_HT20_SGI:
return pCap->halHTSGI20Support ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_RXTSTAMP_PREC: /* rx desc tstamp precision (bits) */
*result = pCap->halTstampPrecision;
return HAL_OK;
case HAL_CAP_ANT_DIV_COMB: /* AR9285/AR9485 LNA diversity */
return pCap->halAntDivCombSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_ENHANCED_DFS_SUPPORT:
return pCap->halEnhancedDfsSupport ? HAL_OK : HAL_ENOTSUPP;
/* FreeBSD-specific entries for now */
case HAL_CAP_RXORN_FATAL: /* HAL_INT_RXORN treated as fatal */
return AH_PRIVATE(ah)->ah_rxornIsFatal ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_INTRMASK: /* mask of supported interrupts */
*result = pCap->halIntrMask;
return HAL_OK;
case HAL_CAP_BSSIDMATCH: /* hardware has disable bssid match */
return pCap->halBssidMatchSupport ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_STREAMS: /* number of 11n spatial streams */
switch (capability) {
case 0: /* TX */
*result = pCap->halTxStreams;
return HAL_OK;
case 1: /* RX */
*result = pCap->halRxStreams;
return HAL_OK;
default:
return HAL_ENOTSUPP;
}
case HAL_CAP_RXDESC_SELFLINK: /* hardware supports self-linked final RX descriptors correctly */
return pCap->halHasRxSelfLinkedTail ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_LONG_RXDESC_TSF: /* 32 bit TSF in RX descriptor? */
return pCap->halHasLongRxDescTsf ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_BB_READ_WAR: /* Baseband read WAR */
return pCap->halHasBBReadWar? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_SERIALISE_WAR: /* PCI register serialisation */
return pCap->halSerialiseRegWar ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_MFP: /* Management frame protection setting */
*result = pCap->halMfpSupport;
return HAL_OK;
case HAL_CAP_RX_LNA_MIXING: /* Hardware uses an RX LNA mixer to map 2 antennas to a 1 stream receiver */
return pCap->halRxUsingLnaMixing ? HAL_OK : HAL_ENOTSUPP;
case HAL_CAP_DO_MYBEACON: /* Hardware supports filtering my-beacons */
return pCap->halRxDoMyBeacon ? HAL_OK : HAL_ENOTSUPP;
default:
return HAL_EINVAL;
}
}
HAL_BOOL
ath_hal_setcapability(struct ath_hal *ah, HAL_CAPABILITY_TYPE type,
uint32_t capability, uint32_t setting, HAL_STATUS *status)
{
switch (type) {
case HAL_CAP_TXPOW:
switch (capability) {
case 3:
if (setting <= HAL_TP_SCALE_MIN) {
AH_PRIVATE(ah)->ah_tpScale = setting;
return AH_TRUE;
}
break;
}
break;
case HAL_CAP_RFSILENT: /* rfsilent support */
/*
* NB: allow even if halRfSilentSupport is false
* in case the EEPROM is misprogrammed.
*/
switch (capability) {
case 1: /* current setting */
AH_PRIVATE(ah)->ah_rfkillEnabled = (setting != 0);
return AH_TRUE;
case 2: /* rfsilent config */
/* XXX better done per-chip for validation? */
AH_PRIVATE(ah)->ah_rfsilent = setting;
return AH_TRUE;
}
break;
case HAL_CAP_REG_DMN: /* regulatory domain */
AH_PRIVATE(ah)->ah_currentRD = setting;
return AH_TRUE;
case HAL_CAP_RXORN_FATAL: /* HAL_INT_RXORN treated as fatal */
AH_PRIVATE(ah)->ah_rxornIsFatal = setting;
return AH_TRUE;
default:
break;
}
if (status)
*status = HAL_EINVAL;
return AH_FALSE;
}
/*
* Common support for getDiagState method.
*/
static u_int
ath_hal_getregdump(struct ath_hal *ah, const HAL_REGRANGE *regs,
void *dstbuf, int space)
{
uint32_t *dp = dstbuf;
int i;
for (i = 0; space >= 2*sizeof(uint32_t); i++) {
uint32_t r = regs[i].start;
uint32_t e = regs[i].end;
*dp++ = r;
*dp++ = e;
space -= 2*sizeof(uint32_t);
do {
*dp++ = OS_REG_READ(ah, r);
r += sizeof(uint32_t);
space -= sizeof(uint32_t);
} while (r <= e && space >= sizeof(uint32_t));
}
return (char *) dp - (char *) dstbuf;
}
static void
ath_hal_setregs(struct ath_hal *ah, const HAL_REGWRITE *regs, int space)
{
while (space >= sizeof(HAL_REGWRITE)) {
OS_REG_WRITE(ah, regs->addr, regs->value);
regs++, space -= sizeof(HAL_REGWRITE);
}
}
HAL_BOOL
ath_hal_getdiagstate(struct ath_hal *ah, int request,
const void *args, uint32_t argsize,
void **result, uint32_t *resultsize)
{
switch (request) {
case HAL_DIAG_REVS:
*result = &AH_PRIVATE(ah)->ah_devid;
*resultsize = sizeof(HAL_REVS);
return AH_TRUE;
case HAL_DIAG_REGS:
*resultsize = ath_hal_getregdump(ah, args, *result,*resultsize);
return AH_TRUE;
case HAL_DIAG_SETREGS:
ath_hal_setregs(ah, args, argsize);
*resultsize = 0;
return AH_TRUE;
case HAL_DIAG_FATALERR:
*result = &AH_PRIVATE(ah)->ah_fatalState[0];
*resultsize = sizeof(AH_PRIVATE(ah)->ah_fatalState);
return AH_TRUE;
case HAL_DIAG_EEREAD:
if (argsize != sizeof(uint16_t))
return AH_FALSE;
if (!ath_hal_eepromRead(ah, *(const uint16_t *)args, *result))
return AH_FALSE;
*resultsize = sizeof(uint16_t);
return AH_TRUE;
#ifdef AH_PRIVATE_DIAG
case HAL_DIAG_SETKEY: {
const HAL_DIAG_KEYVAL *dk;
if (argsize != sizeof(HAL_DIAG_KEYVAL))
return AH_FALSE;
dk = (const HAL_DIAG_KEYVAL *)args;
return ah->ah_setKeyCacheEntry(ah, dk->dk_keyix,
&dk->dk_keyval, dk->dk_mac, dk->dk_xor);
}
case HAL_DIAG_RESETKEY:
if (argsize != sizeof(uint16_t))
return AH_FALSE;
return ah->ah_resetKeyCacheEntry(ah, *(const uint16_t *)args);
#ifdef AH_SUPPORT_WRITE_EEPROM
case HAL_DIAG_EEWRITE: {
const HAL_DIAG_EEVAL *ee;
if (argsize != sizeof(HAL_DIAG_EEVAL))
return AH_FALSE;
ee = (const HAL_DIAG_EEVAL *)args;
return ath_hal_eepromWrite(ah, ee->ee_off, ee->ee_data);
}
#endif /* AH_SUPPORT_WRITE_EEPROM */
#endif /* AH_PRIVATE_DIAG */
case HAL_DIAG_11NCOMPAT:
if (argsize == 0) {
*resultsize = sizeof(uint32_t);
*((uint32_t *)(*result)) =
AH_PRIVATE(ah)->ah_11nCompat;
} else if (argsize == sizeof(uint32_t)) {
AH_PRIVATE(ah)->ah_11nCompat = *(const uint32_t *)args;
} else
return AH_FALSE;
return AH_TRUE;
case HAL_DIAG_CHANSURVEY:
*result = &AH_PRIVATE(ah)->ah_chansurvey;
*resultsize = sizeof(HAL_CHANNEL_SURVEY);
return AH_TRUE;
}
return AH_FALSE;
}
/*
* Set the properties of the tx queue with the parameters
* from qInfo.
*/
HAL_BOOL
ath_hal_setTxQProps(struct ath_hal *ah,
HAL_TX_QUEUE_INFO *qi, const HAL_TXQ_INFO *qInfo)
{
uint32_t cw;
if (qi->tqi_type == HAL_TX_QUEUE_INACTIVE) {
HALDEBUG(ah, HAL_DEBUG_TXQUEUE,
"%s: inactive queue\n", __func__);
return AH_FALSE;
}
/* XXX validate parameters */
qi->tqi_ver = qInfo->tqi_ver;
qi->tqi_subtype = qInfo->tqi_subtype;
qi->tqi_qflags = qInfo->tqi_qflags;
qi->tqi_priority = qInfo->tqi_priority;
if (qInfo->tqi_aifs != HAL_TXQ_USEDEFAULT)
qi->tqi_aifs = AH_MIN(qInfo->tqi_aifs, 255);
else
qi->tqi_aifs = INIT_AIFS;
if (qInfo->tqi_cwmin != HAL_TXQ_USEDEFAULT) {
cw = AH_MIN(qInfo->tqi_cwmin, 1024);
/* make sure that the CWmin is of the form (2^n - 1) */
qi->tqi_cwmin = 1;
while (qi->tqi_cwmin < cw)
qi->tqi_cwmin = (qi->tqi_cwmin << 1) | 1;
} else
qi->tqi_cwmin = qInfo->tqi_cwmin;
if (qInfo->tqi_cwmax != HAL_TXQ_USEDEFAULT) {
cw = AH_MIN(qInfo->tqi_cwmax, 1024);
/* make sure that the CWmax is of the form (2^n - 1) */
qi->tqi_cwmax = 1;
while (qi->tqi_cwmax < cw)
qi->tqi_cwmax = (qi->tqi_cwmax << 1) | 1;
} else
qi->tqi_cwmax = INIT_CWMAX;
/* Set retry limit values */
if (qInfo->tqi_shretry != 0)
qi->tqi_shretry = AH_MIN(qInfo->tqi_shretry, 15);
else
qi->tqi_shretry = INIT_SH_RETRY;
if (qInfo->tqi_lgretry != 0)
qi->tqi_lgretry = AH_MIN(qInfo->tqi_lgretry, 15);
else
qi->tqi_lgretry = INIT_LG_RETRY;
qi->tqi_cbrPeriod = qInfo->tqi_cbrPeriod;
qi->tqi_cbrOverflowLimit = qInfo->tqi_cbrOverflowLimit;
qi->tqi_burstTime = qInfo->tqi_burstTime;
qi->tqi_readyTime = qInfo->tqi_readyTime;
switch (qInfo->tqi_subtype) {
case HAL_WME_UPSD:
if (qi->tqi_type == HAL_TX_QUEUE_DATA)
qi->tqi_intFlags = HAL_TXQ_USE_LOCKOUT_BKOFF_DIS;
break;
default:
break; /* NB: silence compiler */
}
return AH_TRUE;
}
HAL_BOOL
ath_hal_getTxQProps(struct ath_hal *ah,
HAL_TXQ_INFO *qInfo, const HAL_TX_QUEUE_INFO *qi)
{
if (qi->tqi_type == HAL_TX_QUEUE_INACTIVE) {
HALDEBUG(ah, HAL_DEBUG_TXQUEUE,
"%s: inactive queue\n", __func__);
return AH_FALSE;
}
qInfo->tqi_qflags = qi->tqi_qflags;
qInfo->tqi_ver = qi->tqi_ver;
qInfo->tqi_subtype = qi->tqi_subtype;
qInfo->tqi_qflags = qi->tqi_qflags;
qInfo->tqi_priority = qi->tqi_priority;
qInfo->tqi_aifs = qi->tqi_aifs;
qInfo->tqi_cwmin = qi->tqi_cwmin;
qInfo->tqi_cwmax = qi->tqi_cwmax;
qInfo->tqi_shretry = qi->tqi_shretry;
qInfo->tqi_lgretry = qi->tqi_lgretry;
qInfo->tqi_cbrPeriod = qi->tqi_cbrPeriod;
qInfo->tqi_cbrOverflowLimit = qi->tqi_cbrOverflowLimit;
qInfo->tqi_burstTime = qi->tqi_burstTime;
qInfo->tqi_readyTime = qi->tqi_readyTime;
return AH_TRUE;
}
/* 11a Turbo 11b 11g 108g */
static const int16_t NOISE_FLOOR[] = { -96, -93, -98, -96, -93 };
/*
* Read the current channel noise floor and return.
* If nf cal hasn't finished, channel noise floor should be 0
* and we return a nominal value based on band and frequency.
*
* NB: This is a private routine used by per-chip code to
* implement the ah_getChanNoise method.
*/
int16_t
ath_hal_getChanNoise(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
HAL_CHANNEL_INTERNAL *ichan;
ichan = ath_hal_checkchannel(ah, chan);
if (ichan == AH_NULL) {
HALDEBUG(ah, HAL_DEBUG_NFCAL,
"%s: invalid channel %u/0x%x; no mapping\n",
__func__, chan->ic_freq, chan->ic_flags);
return 0;
}
if (ichan->rawNoiseFloor == 0) {
WIRELESS_MODE mode = ath_hal_chan2wmode(ah, chan);
HALASSERT(mode < WIRELESS_MODE_MAX);
return NOISE_FLOOR[mode] + ath_hal_getNfAdjust(ah, ichan);
} else
return ichan->rawNoiseFloor + ichan->noiseFloorAdjust;
}
/*
* Fetch the current setup of ctl/ext noise floor values.
*
* If the CHANNEL_MIMO_NF_VALID flag isn't set, the array is simply
* populated with values from NOISE_FLOOR[] + ath_hal_getNfAdjust().
*
* The caller must supply ctl/ext NF arrays which are at least
* AH_MAX_CHAINS entries long.
*/
int
ath_hal_get_mimo_chan_noise(struct ath_hal *ah,
const struct ieee80211_channel *chan, int16_t *nf_ctl,
int16_t *nf_ext)
{
#ifdef AH_SUPPORT_AR5416
HAL_CHANNEL_INTERNAL *ichan;
int i;
ichan = ath_hal_checkchannel(ah, chan);
if (ichan == AH_NULL) {
HALDEBUG(ah, HAL_DEBUG_NFCAL,
"%s: invalid channel %u/0x%x; no mapping\n",
__func__, chan->ic_freq, chan->ic_flags);
for (i = 0; i < AH_MAX_CHAINS; i++) {
nf_ctl[i] = nf_ext[i] = 0;
}
return 0;
}
/* Return 0 if there's no valid MIMO values (yet) */
if (! (ichan->privFlags & CHANNEL_MIMO_NF_VALID)) {
for (i = 0; i < AH_MAX_CHAINS; i++) {
nf_ctl[i] = nf_ext[i] = 0;
}
return 0;
}
if (ichan->rawNoiseFloor == 0) {
WIRELESS_MODE mode = ath_hal_chan2wmode(ah, chan);
HALASSERT(mode < WIRELESS_MODE_MAX);
/*
* See the comment below - this could cause issues for
* stations which have a very low RSSI, below the
* 'normalised' NF values in NOISE_FLOOR[].
*/
for (i = 0; i < AH_MAX_CHAINS; i++) {
nf_ctl[i] = nf_ext[i] = NOISE_FLOOR[mode] +
ath_hal_getNfAdjust(ah, ichan);
}
return 1;
} else {
/*
* The value returned here from a MIMO radio is presumed to be
* "good enough" as a NF calculation. As RSSI values are calculated
* against this, an adjusted NF may be higher than the RSSI value
* returned from a vary weak station, resulting in an obscenely
* high signal strength calculation being returned.
*
* This should be re-evaluated at a later date, along with any
* signal strength calculations which are made. Quite likely the
* RSSI values will need to be adjusted to ensure the calculations
* don't "wrap" when RSSI is less than the "adjusted" NF value.
* ("Adjust" here is via ichan->noiseFloorAdjust.)
*/
for (i = 0; i < AH_MAX_CHAINS; i++) {
nf_ctl[i] = ichan->noiseFloorCtl[i] + ath_hal_getNfAdjust(ah, ichan);
nf_ext[i] = ichan->noiseFloorExt[i] + ath_hal_getNfAdjust(ah, ichan);
}
return 1;
}
#else
return 0;
#endif /* AH_SUPPORT_AR5416 */
}
/*
* Process all valid raw noise floors into the dBm noise floor values.
* Though our device has no reference for a dBm noise floor, we perform
* a relative minimization of NF's based on the lowest NF found across a
* channel scan.
*/
void
ath_hal_process_noisefloor(struct ath_hal *ah)
{
HAL_CHANNEL_INTERNAL *c;
int16_t correct2, correct5;
int16_t lowest2, lowest5;
int i;
/*
* Find the lowest 2GHz and 5GHz noise floor values after adjusting
* for statistically recorded NF/channel deviation.
*/
correct2 = lowest2 = 0;
correct5 = lowest5 = 0;
for (i = 0; i < AH_PRIVATE(ah)->ah_nchan; i++) {
WIRELESS_MODE mode;
int16_t nf;
c = &AH_PRIVATE(ah)->ah_channels[i];
if (c->rawNoiseFloor >= 0)
continue;
/* XXX can't identify proper mode */
mode = IS_CHAN_5GHZ(c) ? WIRELESS_MODE_11a : WIRELESS_MODE_11g;
nf = c->rawNoiseFloor + NOISE_FLOOR[mode] +
ath_hal_getNfAdjust(ah, c);
if (IS_CHAN_5GHZ(c)) {
if (nf < lowest5) {
lowest5 = nf;
correct5 = NOISE_FLOOR[mode] -
(c->rawNoiseFloor + ath_hal_getNfAdjust(ah, c));
}
} else {
if (nf < lowest2) {
lowest2 = nf;
correct2 = NOISE_FLOOR[mode] -
(c->rawNoiseFloor + ath_hal_getNfAdjust(ah, c));
}
}
}
/* Correct the channels to reach the expected NF value */
for (i = 0; i < AH_PRIVATE(ah)->ah_nchan; i++) {
c = &AH_PRIVATE(ah)->ah_channels[i];
if (c->rawNoiseFloor >= 0)
continue;
/* Apply correction factor */
c->noiseFloorAdjust = ath_hal_getNfAdjust(ah, c) +
(IS_CHAN_5GHZ(c) ? correct5 : correct2);
HALDEBUG(ah, HAL_DEBUG_NFCAL, "%u raw nf %d adjust %d\n",
c->channel, c->rawNoiseFloor, c->noiseFloorAdjust);
}
}
/*
* INI support routines.
*/
int
ath_hal_ini_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
int col, int regWr)
{
int r;
HALASSERT(col < ia->cols);
for (r = 0; r < ia->rows; r++) {
OS_REG_WRITE(ah, HAL_INI_VAL(ia, r, 0),
HAL_INI_VAL(ia, r, col));
/* Analog shift register delay seems needed for Merlin - PR kern/154220 */
if (HAL_INI_VAL(ia, r, 0) >= 0x7800 && HAL_INI_VAL(ia, r, 0) < 0x7900)
OS_DELAY(100);
DMA_YIELD(regWr);
}
return regWr;
}
void
ath_hal_ini_bank_setup(uint32_t data[], const HAL_INI_ARRAY *ia, int col)
{
int r;
HALASSERT(col < ia->cols);
for (r = 0; r < ia->rows; r++)
data[r] = HAL_INI_VAL(ia, r, col);
}
int
ath_hal_ini_bank_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
const uint32_t data[], int regWr)
{
int r;
for (r = 0; r < ia->rows; r++) {
OS_REG_WRITE(ah, HAL_INI_VAL(ia, r, 0), data[r]);
DMA_YIELD(regWr);
}
return regWr;
}
/*
* These are EEPROM board related routines which should likely live in
* a helper library of some sort.
*/
/**************************************************************
* ath_ee_getLowerUppderIndex
*
* Return indices surrounding the value in sorted integer lists.
* Requirement: the input list must be monotonically increasing
* and populated up to the list size
* Returns: match is set if an index in the array matches exactly
* or a the target is before or after the range of the array.
*/
HAL_BOOL
ath_ee_getLowerUpperIndex(uint8_t target, uint8_t *pList, uint16_t listSize,
uint16_t *indexL, uint16_t *indexR)
{
uint16_t i;
/*
* Check first and last elements for beyond ordered array cases.
*/
if (target <= pList[0]) {
*indexL = *indexR = 0;
return AH_TRUE;
}
if (target >= pList[listSize-1]) {
*indexL = *indexR = (uint16_t)(listSize - 1);
return AH_TRUE;
}
/* look for value being near or between 2 values in list */
for (i = 0; i < listSize - 1; i++) {
/*
* If value is close to the current value of the list
* then target is not between values, it is one of the values
*/
if (pList[i] == target) {
*indexL = *indexR = i;
return AH_TRUE;
}
/*
* Look for value being between current value and next value
* if so return these 2 values
*/
if (target < pList[i + 1]) {
*indexL = i;
*indexR = (uint16_t)(i + 1);
return AH_FALSE;
}
}
HALASSERT(0);
*indexL = *indexR = 0;
return AH_FALSE;
}
/**************************************************************
* ath_ee_FillVpdTable
*
* Fill the Vpdlist for indices Pmax-Pmin
* Note: pwrMin, pwrMax and Vpdlist are all in dBm * 4
*/
HAL_BOOL
ath_ee_FillVpdTable(uint8_t pwrMin, uint8_t pwrMax, uint8_t *pPwrList,
uint8_t *pVpdList, uint16_t numIntercepts, uint8_t *pRetVpdList)
{
uint16_t i, k;
uint8_t currPwr = pwrMin;
uint16_t idxL, idxR;
HALASSERT(pwrMax > pwrMin);
for (i = 0; i <= (pwrMax - pwrMin) / 2; i++) {
ath_ee_getLowerUpperIndex(currPwr, pPwrList, numIntercepts,
&(idxL), &(idxR));
if (idxR < 1)
idxR = 1; /* extrapolate below */
if (idxL == numIntercepts - 1)
idxL = (uint16_t)(numIntercepts - 2); /* extrapolate above */
if (pPwrList[idxL] == pPwrList[idxR])
k = pVpdList[idxL];
else
k = (uint16_t)( ((currPwr - pPwrList[idxL]) * pVpdList[idxR] + (pPwrList[idxR] - currPwr) * pVpdList[idxL]) /
(pPwrList[idxR] - pPwrList[idxL]) );
HALASSERT(k < 256);
pRetVpdList[i] = (uint8_t)k;
currPwr += 2; /* half dB steps */
}
return AH_TRUE;
}
/**************************************************************************
* ath_ee_interpolate
*
* Returns signed interpolated or the scaled up interpolated value
*/
int16_t
ath_ee_interpolate(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
int16_t targetLeft, int16_t targetRight)
{
int16_t rv;
if (srcRight == srcLeft) {
rv = targetLeft;
} else {
rv = (int16_t)( ((target - srcLeft) * targetRight +
(srcRight - target) * targetLeft) / (srcRight - srcLeft) );
}
return rv;
}
/*
* Adjust the TSF.
*/
void
ath_hal_adjusttsf(struct ath_hal *ah, int32_t tsfdelta)
{
/* XXX handle wrap/overflow */
OS_REG_WRITE(ah, AR_TSF_L32, OS_REG_READ(ah, AR_TSF_L32) + tsfdelta);
}
/*
* Enable or disable CCA.
*/
void
ath_hal_setcca(struct ath_hal *ah, int ena)
{
/*
* NB: fill me in; this is not provided by default because disabling
* CCA in most locales violates regulatory.
*/
}
/*
* Get CCA setting.
*/
int
ath_hal_getcca(struct ath_hal *ah)
{
u_int32_t diag;
if (ath_hal_getcapability(ah, HAL_CAP_DIAG, 0, &diag) != HAL_OK)
return 1;
return ((diag & 0x500000) == 0);
}
/*
* This routine is only needed when supporting EEPROM-in-RAM setups
* (eg embedded SoCs and on-board PCI/PCIe devices.)
*/
/* NB: This is in 16 bit words; not bytes */
/* XXX This doesn't belong here! */
#define ATH_DATA_EEPROM_SIZE 2048
HAL_BOOL
ath_hal_EepromDataRead(struct ath_hal *ah, u_int off, uint16_t *data)
{
if (ah->ah_eepromdata == AH_NULL) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: no eeprom data!\n", __func__);
return AH_FALSE;
}
if (off > ATH_DATA_EEPROM_SIZE) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: offset %x > %x\n",
__func__, off, ATH_DATA_EEPROM_SIZE);
return AH_FALSE;
}
(*data) = ah->ah_eepromdata[off];
return AH_TRUE;
}
/*
* Do a 2GHz specific MHz->IEEE based on the hardware
* frequency.
*
* This is the unmapped frequency which is programmed into the hardware.
*/
int
ath_hal_mhz2ieee_2ghz(struct ath_hal *ah, int freq)
{
if (freq == 2484)
return 14;
if (freq < 2484)
return ((int) freq - 2407) / 5;
else
return 15 + ((freq - 2512) / 20);
}
/*
* Clear the current survey data.
*
* This should be done during a channel change.
*/
void
ath_hal_survey_clear(struct ath_hal *ah)
{
OS_MEMZERO(&AH_PRIVATE(ah)->ah_chansurvey,
sizeof(AH_PRIVATE(ah)->ah_chansurvey));
}
/*
* Add a sample to the channel survey.
*/
void
ath_hal_survey_add_sample(struct ath_hal *ah, HAL_SURVEY_SAMPLE *hs)
{
HAL_CHANNEL_SURVEY *cs;
cs = &AH_PRIVATE(ah)->ah_chansurvey;
OS_MEMCPY(&cs->samples[cs->cur_sample], hs, sizeof(*hs));
cs->samples[cs->cur_sample].seq_num = cs->cur_seq;
cs->cur_sample = (cs->cur_sample + 1) % CHANNEL_SURVEY_SAMPLE_COUNT;
cs->cur_seq++;
}
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