Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 300 ++++++++++++++++++++++++++-
1 files changed, 289 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 356e03d..c938b85 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -225,7 +225,30 @@ static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
static void ar9003_hw_init_bb(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
+ u32 synthDelay;
+
+ /*
+ * Wait for the frequency synth to settle (synth goes on
+ * via AR_PHY_ACTIVE_EN). Read the phy active delay register.
+ * Value is in 100ns increments.
+ */
+ synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
+ if (IS_CHAN_B(chan))
+ synthDelay = (4 * synthDelay) / 22;
+ else
+ synthDelay /= 10;
+
+ /* Activate the PHY (includes baseband activate + synthesizer on) */
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+
+ /*
+ * There is an issue if the AP starts the calibration before
+ * the base band timeout completes. This could result in the
+ * rx_clear false triggering. As a workaround we add delay an
+ * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
+ * does not happen.
+ */
+ udelay(synthDelay + BASE_ACTIVATE_DELAY);
}
void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
@@ -385,46 +408,301 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
static void ar9003_hw_set_rfmode(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
+ u32 rfMode = 0;
+
+ if (chan == NULL)
+ return;
+
+ rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
+ ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
+
+ if (IS_CHAN_A_5MHZ_SPACED(chan))
+ rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
+
+ REG_WRITE(ah, AR_PHY_MODE, rfMode);
}
static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
{
- /* TODO */
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
}
static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
+ u32 coef_scaled, ds_coef_exp, ds_coef_man;
+ u32 clockMhzScaled = 0x64000000;
+ struct chan_centers centers;
+
+ /*
+ * half and quarter rate can divide the scaled clock by 2 or 4
+ * scale for selected channel bandwidth
+ */
+ if (IS_CHAN_HALF_RATE(chan))
+ clockMhzScaled = clockMhzScaled >> 1;
+ else if (IS_CHAN_QUARTER_RATE(chan))
+ clockMhzScaled = clockMhzScaled >> 2;
+
+ /*
+ * ALGO -> coef = 1e8/fcarrier*fclock/40;
+ * scaled coef to provide precision for this floating calculation
+ */
+ ath9k_hw_get_channel_centers(ah, chan, ¢ers);
+ coef_scaled = clockMhzScaled / centers.synth_center;
+
+ ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
+ &ds_coef_exp);
+
+ REG_RMW_FIELD(ah, AR_PHY_TIMING3,
+ AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING3,
+ AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
+
+ /*
+ * For Short GI,
+ * scaled coeff is 9/10 that of normal coeff
+ */
+ coef_scaled = (9 * coef_scaled) / 10;
+
+ ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
+ &ds_coef_exp);
+
+ /* for short gi */
+ REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
+ AR_PHY_SGI_DSC_MAN, ds_coef_man);
+ REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
+ AR_PHY_SGI_DSC_EXP, ds_coef_exp);
}
static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
{
- /* TODO */
- return false;
+ REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
+ return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
+ AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
}
+/*
+ * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
+ * Read the phy active delay register. Value is in 100ns increments.
+ */
static void ar9003_hw_rfbus_done(struct ath_hw *ah)
{
- /* TODO */
+ u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
+ if (IS_CHAN_B(ah->curchan))
+ synthDelay = (4 * synthDelay) / 22;
+ else
+ synthDelay /= 10;
+
+ udelay(synthDelay + BASE_ACTIVATE_DELAY);
+
+ REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
}
+/*
+ * Set the interrupt and GPIO values so the ISR can disable RF
+ * on a switch signal. Assumes GPIO port and interrupt polarity
+ * are set prior to call.
+ */
static void ar9003_hw_enable_rfkill(struct ath_hw *ah)
{
- /* TODO */
+ /* Connect rfsilent_bb_l to baseband */
+ REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
+ AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
+ /* Set input mux for rfsilent_bb_l to GPIO #0 */
+ REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
+ AR_GPIO_INPUT_MUX2_RFSILENT);
+
+ /*
+ * Configure the desired GPIO port for input and
+ * enable baseband rf silence.
+ */
+ ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
+ REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
}
static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
{
- /* TODO */
+ u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
+ if (value)
+ v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+ else
+ v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+ REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
}
static bool ar9003_hw_ani_control(struct ath_hw *ah,
enum ath9k_ani_cmd cmd, int param)
{
- /* TODO */
- return false;
+ struct ar5416AniState *aniState = ah->curani;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ switch (cmd & ah->ani_function) {
+ case ATH9K_ANI_NOISE_IMMUNITY_LEVEL:{
+ u32 level = param;
+
+ if (level >= ARRAY_SIZE(ah->totalSizeDesired)) {
+ ath_print(common, ATH_DBG_ANI,
+ "level out of range (%u > %u)\n",
+ level,
+ (unsigned)ARRAY_SIZE(ah->totalSizeDesired));
+ return false;
+ }
+
+ REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ,
+ AR_PHY_DESIRED_SZ_TOT_DES,
+ ah->totalSizeDesired[level]);
+ REG_RMW_FIELD(ah, AR_PHY_AGC,
+ AR_PHY_AGC_COARSE_LOW,
+ ah->coarse_low[level]);
+ REG_RMW_FIELD(ah, AR_PHY_AGC,
+ AR_PHY_AGC_COARSE_HIGH,
+ ah->coarse_high[level]);
+ REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
+ AR_PHY_FIND_SIG_FIRPWR, ah->firpwr[level]);
+
+ if (level > aniState->noiseImmunityLevel)
+ ah->stats.ast_ani_niup++;
+ else if (level < aniState->noiseImmunityLevel)
+ ah->stats.ast_ani_nidown++;
+ aniState->noiseImmunityLevel = level;
+ break;
+ }
+ case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
+ const int m1ThreshLow[] = { 127, 50 };
+ const int m2ThreshLow[] = { 127, 40 };
+ const int m1Thresh[] = { 127, 0x4d };
+ const int m2Thresh[] = { 127, 0x40 };
+ const int m2CountThr[] = { 31, 16 };
+ const int m2CountThrLow[] = { 63, 48 };
+ u32 on = param ? 1 : 0;
+
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+ AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
+ m1ThreshLow[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+ AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
+ m2ThreshLow[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+ AR_PHY_SFCORR_M1_THRESH, m1Thresh[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+ AR_PHY_SFCORR_M2_THRESH, m2Thresh[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+ AR_PHY_SFCORR_M2COUNT_THR, m2CountThr[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+ AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
+ m2CountThrLow[on]);
+
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_M1_THRESH_LOW, m1ThreshLow[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_M2_THRESH_LOW, m2ThreshLow[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_M1_THRESH, m1Thresh[on]);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_M2_THRESH, m2Thresh[on]);
+
+ if (on)
+ REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
+ AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
+ else
+ REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
+ AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
+
+ if (!on != aniState->ofdmWeakSigDetectOff) {
+ if (on)
+ ah->stats.ast_ani_ofdmon++;
+ else
+ ah->stats.ast_ani_ofdmoff++;
+ aniState->ofdmWeakSigDetectOff = !on;
+ }
+ break;
+ }
+ case ATH9K_ANI_CCK_WEAK_SIGNAL_THR:{
+ const int weakSigThrCck[] = { 8, 6 };
+ u32 high = param ? 1 : 0;
+
+ REG_RMW_FIELD(ah, AR_PHY_CCK_DETECT,
+ AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK,
+ weakSigThrCck[high]);
+ if (high != aniState->cckWeakSigThreshold) {
+ if (high)
+ ah->stats.ast_ani_cckhigh++;
+ else
+ ah->stats.ast_ani_ccklow++;
+ aniState->cckWeakSigThreshold = high;
+ }
+ break;
+ }
+ case ATH9K_ANI_FIRSTEP_LEVEL:{
+ const int firstep[] = { 0, 4, 8 };
+ u32 level = param;
+
+ if (level >= ARRAY_SIZE(firstep)) {
+ ath_print(common, ATH_DBG_ANI,
+ "level out of range (%u > %u)\n",
+ level,
+ (unsigned) ARRAY_SIZE(firstep));
+ return false;
+ }
+ REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
+ AR_PHY_FIND_SIG_FIRSTEP,
+ firstep[level]);
+ if (level > aniState->firstepLevel)
+ ah->stats.ast_ani_stepup++;
+ else if (level < aniState->firstepLevel)
+ ah->stats.ast_ani_stepdown++;
+ aniState->firstepLevel = level;
+ break;
+ }
+ case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
+ const int cycpwrThr1[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
+ u32 level = param;
+
+ if (level >= ARRAY_SIZE(cycpwrThr1)) {
+ ath_print(common, ATH_DBG_ANI,
+ "level out of range (%u > %u)\n",
+ level,
+ (unsigned) ARRAY_SIZE(cycpwrThr1));
+ return false;
+ }
+ REG_RMW_FIELD(ah, AR_PHY_TIMING5,
+ AR_PHY_TIMING5_CYCPWR_THR1,
+ cycpwrThr1[level]);
+ if (level > aniState->spurImmunityLevel)
+ ah->stats.ast_ani_spurup++;
+ else if (level < aniState->spurImmunityLevel)
+ ah->stats.ast_ani_spurdown++;
+ aniState->spurImmunityLevel = level;
+ break;
+ }
+ case ATH9K_ANI_PRESENT:
+ break;
+ default:
+ ath_print(common, ATH_DBG_ANI,
+ "invalid cmd %u\n", cmd);
+ return false;
+ }
+
+ ath_print(common, ATH_DBG_ANI, "ANI parameters:\n");
+ ath_print(common, ATH_DBG_ANI,
+ "noiseImmunityLevel=%d, spurImmunityLevel=%d, "
+ "ofdmWeakSigDetectOff=%d\n",
+ aniState->noiseImmunityLevel,
+ aniState->spurImmunityLevel,
+ !aniState->ofdmWeakSigDetectOff);
+ ath_print(common, ATH_DBG_ANI,
+ "cckWeakSigThreshold=%d, "
+ "firstepLevel=%d, listenTime=%d\n",
+ aniState->cckWeakSigThreshold,
+ aniState->firstepLevel,
+ aniState->listenTime);
+ ath_print(common, ATH_DBG_ANI,
+ "cycleCount=%d, ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
+ aniState->cycleCount,
+ aniState->ofdmPhyErrCount,
+ aniState->cckPhyErrCount);
+
+ return true;
}
void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
--
1.6.3.3
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
