/*
* Get the upper and lower pcdac given the channel and the pcdac
* used in the search
*/
static void
ar5212GetLowerUpperPcdacs(uint16_t pcdac, uint16_t channel,
const PCDACS_EEPROM *pSrcStruct,
uint16_t *pLowerPcdac, uint16_t *pUpperPcdac)
{
const DATA_PER_CHANNEL *pChannelData = pSrcStruct->pDataPerChannel;
int i;
/* Find the channel information */
for (i = 0; i < pSrcStruct->numChannels; i++) {
if (pChannelData->channelValue == channel)
break;
pChannelData++;
}
ar5212GetLowerUpperValues(pcdac, pChannelData->PcdacValues,
pChannelData->numPcdacValues,
pLowerPcdac, pUpperPcdac);
}
/*
* Return the four rates of target power for the given target power table
* channel, and number of channels
*/
static void
ar5212GetTargetPowers(struct ath_hal *ah, const struct ieee80211_channel *chan,
TRGT_POWER_INFO *powInfo,
u_int16_t numChannels, TRGT_POWER_INFO *pNewPower)
{
/* temp array for holding target power channels */
u_int16_t tempChannelList[NUM_TEST_FREQUENCIES];
u_int16_t clo, chi, ixlo, ixhi;
int i;
/* Copy the target powers into the temp channel list */
for (i = 0; i < numChannels; i++)
tempChannelList[i] = powInfo[i].testChannel;
ar5212GetLowerUpperValues(chan->ic_freq, tempChannelList,
numChannels, &clo, &chi);
/* Get the indices for the channel */
ixlo = ixhi = 0;
for (i = 0; i < numChannels; i++) {
if (clo == tempChannelList[i]) {
ixlo = i;
}
if (chi == tempChannelList[i]) {
ixhi = i;
break;
}
}
/*
* Get the lower and upper channels, target powers,
* and interpolate between them.
*/
pNewPower->twicePwr6_24 = interpolate(chan->ic_freq, clo, chi,
powInfo[ixlo].twicePwr6_24, powInfo[ixhi].twicePwr6_24);
pNewPower->twicePwr36 = interpolate(chan->ic_freq, clo, chi,
powInfo[ixlo].twicePwr36, powInfo[ixhi].twicePwr36);
pNewPower->twicePwr48 = interpolate(chan->ic_freq, clo, chi,
powInfo[ixlo].twicePwr48, powInfo[ixhi].twicePwr48);
pNewPower->twicePwr54 = interpolate(chan->ic_freq, clo, chi,
powInfo[ixlo].twicePwr54, powInfo[ixhi].twicePwr54);
}
