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path: root/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_calib.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_calib.c128
1 files changed, 68 insertions, 60 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 518e649ecff3..b6f064a8d264 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -33,6 +33,7 @@ struct coeff {
enum ar9003_cal_types {
IQ_MISMATCH_CAL = BIT(0),
+ TEMP_COMP_CAL = BIT(1),
};
static void ar9003_hw_setup_calibration(struct ath_hw *ah,
@@ -58,6 +59,12 @@ static void ar9003_hw_setup_calibration(struct ath_hw *ah,
/* Kick-off cal */
REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL);
break;
+ case TEMP_COMP_CAL:
+ ath_dbg(common, CALIBRATE,
+ "starting Temperature Compensation Calibration\n");
+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_LOCAL);
+ REG_SET_BIT(ah, AR_CH0_THERM, AR_CH0_THERM_START);
+ break;
default:
ath_err(common, "Invalid calibration type\n");
break;
@@ -75,50 +82,51 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah,
struct ath9k_cal_list *currCal)
{
struct ath9k_hw_cal_data *caldata = ah->caldata;
- /* Cal is assumed not done until explicitly set below */
- bool iscaldone = false;
+ const struct ath9k_percal_data *cur_caldata = currCal->calData;
/* Calibration in progress. */
if (currCal->calState == CAL_RUNNING) {
/* Check to see if it has finished. */
- if (!(REG_READ(ah, AR_PHY_TIMING4) & AR_PHY_TIMING4_DO_CAL)) {
+ if (REG_READ(ah, AR_PHY_TIMING4) & AR_PHY_TIMING4_DO_CAL)
+ return false;
+
+ /*
+ * Accumulate cal measures for active chains
+ */
+ if (cur_caldata->calCollect)
+ cur_caldata->calCollect(ah);
+ ah->cal_samples++;
+
+ if (ah->cal_samples >= cur_caldata->calNumSamples) {
+ unsigned int i, numChains = 0;
+ for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ if (rxchainmask & (1 << i))
+ numChains++;
+ }
+
/*
- * Accumulate cal measures for active chains
+ * Process accumulated data
*/
- currCal->calData->calCollect(ah);
- ah->cal_samples++;
-
- if (ah->cal_samples >=
- currCal->calData->calNumSamples) {
- unsigned int i, numChains = 0;
- for (i = 0; i < AR9300_MAX_CHAINS; i++) {
- if (rxchainmask & (1 << i))
- numChains++;
- }
-
- /*
- * Process accumulated data
- */
- currCal->calData->calPostProc(ah, numChains);
+ if (cur_caldata->calPostProc)
+ cur_caldata->calPostProc(ah, numChains);
- /* Calibration has finished. */
- caldata->CalValid |= currCal->calData->calType;
- currCal->calState = CAL_DONE;
- iscaldone = true;
- } else {
+ /* Calibration has finished. */
+ caldata->CalValid |= cur_caldata->calType;
+ currCal->calState = CAL_DONE;
+ return true;
+ } else {
/*
* Set-up collection of another sub-sample until we
* get desired number
*/
ar9003_hw_setup_calibration(ah, currCal);
- }
}
- } else if (!(caldata->CalValid & currCal->calData->calType)) {
+ } else if (!(caldata->CalValid & cur_caldata->calType)) {
/* If current cal is marked invalid in channel, kick it off */
ath9k_hw_reset_calibration(ah, currCal);
}
- return iscaldone;
+ return false;
}
static int ar9003_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
@@ -315,9 +323,16 @@ static const struct ath9k_percal_data iq_cal_single_sample = {
ar9003_hw_iqcalibrate
};
+static const struct ath9k_percal_data temp_cal_single_sample = {
+ TEMP_COMP_CAL,
+ MIN_CAL_SAMPLES,
+ PER_MAX_LOG_COUNT,
+};
+
static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
{
ah->iq_caldata.calData = &iq_cal_single_sample;
+ ah->temp_caldata.calData = &temp_cal_single_sample;
if (AR_SREV_9300_20_OR_LATER(ah)) {
ah->enabled_cals |= TX_IQ_CAL;
@@ -325,7 +340,7 @@ static void ar9003_hw_init_cal_settings(struct ath_hw *ah)
ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
}
- ah->supp_cals = IQ_MISMATCH_CAL;
+ ah->supp_cals = IQ_MISMATCH_CAL | TEMP_COMP_CAL;
}
#define OFF_UPPER_LT 24
@@ -1374,6 +1389,29 @@ static void ar9003_hw_cl_cal_post_proc(struct ath_hw *ah, bool is_reusable)
}
}
+static void ar9003_hw_init_cal_common(struct ath_hw *ah)
+{
+ struct ath9k_hw_cal_data *caldata = ah->caldata;
+
+ /* Initialize list pointers */
+ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
+
+ INIT_CAL(&ah->iq_caldata);
+ INSERT_CAL(ah, &ah->iq_caldata);
+
+ INIT_CAL(&ah->temp_caldata);
+ INSERT_CAL(ah, &ah->temp_caldata);
+
+ /* Initialize current pointer to first element in list */
+ ah->cal_list_curr = ah->cal_list;
+
+ if (ah->cal_list_curr)
+ ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
+
+ if (caldata)
+ caldata->CalValid = 0;
+}
+
static bool ar9003_hw_init_cal_pcoem(struct ath_hw *ah,
struct ath9k_channel *chan)
{
@@ -1533,21 +1571,7 @@ skip_tx_iqcal:
/* Revert chainmask to runtime parameters */
ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
- /* Initialize list pointers */
- ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
-
- INIT_CAL(&ah->iq_caldata);
- INSERT_CAL(ah, &ah->iq_caldata);
- ath_dbg(common, CALIBRATE, "enabling IQ Calibration\n");
-
- /* Initialize current pointer to first element in list */
- ah->cal_list_curr = ah->cal_list;
-
- if (ah->cal_list_curr)
- ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
-
- if (caldata)
- caldata->CalValid = 0;
+ ar9003_hw_init_cal_common(ah);
return true;
}
@@ -1578,8 +1602,6 @@ static bool do_ar9003_agc_cal(struct ath_hw *ah)
static bool ar9003_hw_init_cal_soc(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- struct ath_common *common = ath9k_hw_common(ah);
- struct ath9k_hw_cal_data *caldata = ah->caldata;
bool txiqcal_done = false;
bool status = true;
bool run_agc_cal = false, sep_iq_cal = false;
@@ -1677,21 +1699,7 @@ skip_tx_iqcal:
/* Revert chainmask to runtime parameters */
ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
- /* Initialize list pointers */
- ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
-
- INIT_CAL(&ah->iq_caldata);
- INSERT_CAL(ah, &ah->iq_caldata);
- ath_dbg(common, CALIBRATE, "enabling IQ Calibration\n");
-
- /* Initialize current pointer to first element in list */
- ah->cal_list_curr = ah->cal_list;
-
- if (ah->cal_list_curr)
- ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
-
- if (caldata)
- caldata->CalValid = 0;
+ ar9003_hw_init_cal_common(ah);
return true;
}