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ath9k: implement temperature compensation support for AR93xx and newer

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Signed-off-by: Felix Fietkau <nbd@nbd.name>
master
Felix Fietkau 8 years ago
parent 98e4b504b4
commit 207338c78e
5 changed files with 337 additions and 1 deletions
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  1. 57
      package/kernel/mac80211/patches/325-ath9k_hw-fix-duplicate-and-partially-wrong-definitio.patch
  2. 88
      package/kernel/mac80211/patches/326-ath9k_hw-simplify-ar9003_hw_per_calibration.patch
  3. 94
      package/kernel/mac80211/patches/327-ath9k_hw-get-rid-of-some-duplicate-code-in-calibrati.patch
  4. 97
      package/kernel/mac80211/patches/328-ath9k_hw-implement-temperature-compensation-support-.patch
  5. 2
      package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch

57
package/kernel/mac80211/patches/325-ath9k_hw-fix-duplicate-and-partially-wrong-definitio.patch
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From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 11 Jul 2016 11:31:39 +0200
Subject: [PATCH] ath9k_hw: fix duplicate (and partially wrong) definition
of AR_CH0_THERM
AR_PHY_65NM_CH0_THERM and AR_CH0_THERM were supposed to refer to the
same register, however they had different SREV checks.
Remove the duplicate and use the checks. Since there were other SREV
checks present in the only place that uses this, this will probaby not
affect runtime behavior.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -689,13 +689,6 @@
#define AR_CH0_TOP_XPABIASLVL (AR_SREV_9550(ah) ? 0x3c0 : 0x300)
#define AR_CH0_TOP_XPABIASLVL_S (AR_SREV_9550(ah) ? 6 : 8)
-#define AR_CH0_THERM (AR_SREV_9300(ah) ? 0x16290 : \
- ((AR_SREV_9485(ah) ? 0x1628c : 0x16294)))
-#define AR_CH0_THERM_XPABIASLVL_MSB 0x3
-#define AR_CH0_THERM_XPABIASLVL_MSB_S 0
-#define AR_CH0_THERM_XPASHORT2GND 0x4
-#define AR_CH0_THERM_XPASHORT2GND_S 2
-
#define AR_SWITCH_TABLE_COM_ALL (0xffff)
#define AR_SWITCH_TABLE_COM_ALL_S (0)
#define AR_SWITCH_TABLE_COM_AR9462_ALL (0xffffff)
@@ -712,15 +705,17 @@
#define AR_SWITCH_TABLE_ALL (0xfff)
#define AR_SWITCH_TABLE_ALL_S (0)
-#define AR_PHY_65NM_CH0_THERM (AR_SREV_9300(ah) ? 0x16290 :\
- ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16294 : 0x1628c))
+#define AR_CH0_THERM (AR_SREV_9300(ah) ? 0x16290 :\
+ ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x16294 : 0x1628c))
+#define AR_CH0_THERM_XPABIASLVL_MSB 0x3
+#define AR_CH0_THERM_XPABIASLVL_MSB_S 0
+#define AR_CH0_THERM_XPASHORT2GND 0x4
+#define AR_CH0_THERM_XPASHORT2GND_S 2
-#define AR_PHY_65NM_CH0_THERM_LOCAL 0x80000000
-#define AR_PHY_65NM_CH0_THERM_LOCAL_S 31
-#define AR_PHY_65NM_CH0_THERM_START 0x20000000
-#define AR_PHY_65NM_CH0_THERM_START_S 29
-#define AR_PHY_65NM_CH0_THERM_SAR_ADC_OUT 0x0000ff00
-#define AR_PHY_65NM_CH0_THERM_SAR_ADC_OUT_S 8
+#define AR_CH0_THERM_LOCAL 0x80000000
+#define AR_CH0_THERM_START 0x20000000
+#define AR_CH0_THERM_SAR_ADC_OUT 0x0000ff00
+#define AR_CH0_THERM_SAR_ADC_OUT_S 8
#define AR_CH0_TOP2 (AR_SREV_9300(ah) ? 0x1628c : \
(AR_SREV_9462(ah) ? 0x16290 : 0x16284))

88
package/kernel/mac80211/patches/326-ath9k_hw-simplify-ar9003_hw_per_calibration.patch
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From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 11 Jul 2016 11:34:47 +0200
Subject: [PATCH] ath9k_hw: simplify ar9003_hw_per_calibration
Reduce indentation, use a variable to save a few pointer dereferences
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -75,50 +75,49 @@ static bool ar9003_hw_per_calibration(st
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)) {
- /*
- * Accumulate cal measures for active chains
- */
- currCal->calData->calCollect(ah);
- ah->cal_samples++;
+ if (REG_READ(ah, AR_PHY_TIMING4) & AR_PHY_TIMING4_DO_CAL)
+ return false;
- 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++;
- }
+ /*
+ * Accumulate cal measures for active chains
+ */
+ cur_caldata->calCollect(ah);
+ ah->cal_samples++;
- /*
- * Process accumulated data
- */
- currCal->calData->calPostProc(ah, numChains);
+ 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++;
+ }
- /* Calibration has finished. */
- caldata->CalValid |= currCal->calData->calType;
- currCal->calState = CAL_DONE;
- iscaldone = true;
- } else {
+ /*
+ * Process accumulated data
+ */
+ cur_caldata->calPostProc(ah, numChains);
+
+ /* 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,

94
package/kernel/mac80211/patches/327-ath9k_hw-get-rid-of-some-duplicate-code-in-calibrati.patch
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@ -0,0 +1,94 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 11 Jul 2016 11:35:20 +0200
Subject: [PATCH] ath9k_hw: get rid of some duplicate code in calibration
init
Remove a misleading debug message as well
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -1373,6 +1373,26 @@ static void ar9003_hw_cl_cal_post_proc(s
}
}
+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);
+
+ /* 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)
{
@@ -1532,21 +1552,7 @@ 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;
}
@@ -1577,8 +1583,6 @@ static bool do_ar9003_agc_cal(struct ath
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;
@@ -1676,21 +1680,7 @@ 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;
}

97
package/kernel/mac80211/patches/328-ath9k_hw-implement-temperature-compensation-support-.patch
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From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 11 Jul 2016 11:35:55 +0200
Subject: [PATCH] ath9k_hw: implement temperature compensation support for
AR9003+
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- 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(
/* 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;
@@ -86,7 +93,8 @@ static bool ar9003_hw_per_calibration(st
/*
* Accumulate cal measures for active chains
*/
- cur_caldata->calCollect(ah);
+ if (cur_caldata->calCollect)
+ cur_caldata->calCollect(ah);
ah->cal_samples++;
if (ah->cal_samples >= cur_caldata->calNumSamples) {
@@ -99,7 +107,8 @@ static bool ar9003_hw_per_calibration(st
/*
* Process accumulated data
*/
- cur_caldata->calPostProc(ah, numChains);
+ if (cur_caldata->calPostProc)
+ cur_caldata->calPostProc(ah, numChains);
/* Calibration has finished. */
caldata->CalValid |= cur_caldata->calType;
@@ -314,9 +323,16 @@ static const struct ath9k_percal_data iq
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;
@@ -324,7 +340,7 @@ static void ar9003_hw_init_cal_settings(
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
@@ -1383,6 +1399,9 @@ static void ar9003_hw_init_cal_common(st
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;
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -830,6 +830,7 @@ struct ath_hw {
/* Calibration */
u32 supp_cals;
struct ath9k_cal_list iq_caldata;
+ struct ath9k_cal_list temp_caldata;
struct ath9k_cal_list adcgain_caldata;
struct ath9k_cal_list adcdc_caldata;
struct ath9k_cal_list *cal_list;

2
package/kernel/mac80211/patches/542-ath9k_debugfs_diag.patch
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@ -84,7 +84,7 @@
bool reset_power_on; bool reset_power_on;
bool htc_reset_init; bool htc_reset_init;
@@ -1067,6 +1075,7 @@ void ath9k_hw_check_nav(struct ath_hw *a @@ -1068,6 +1076,7 @@ void ath9k_hw_check_nav(struct ath_hw *a
bool ath9k_hw_check_alive(struct ath_hw *ah); bool ath9k_hw_check_alive(struct ath_hw *ah);
bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode); bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);

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