*
* Spur mitigation for MRC CCK
*/
+static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
+ int cur_bb_spur, negative = 0, cck_spur_freq;
+ int i;
+
+ /*
+ * Need to verify range +/- 10 MHz in control channel, otherwise spur
+ * is out-of-band and can be ignored.
+ */
+
+ for (i = 0; i < 4; i++) {
+ negative = 0;
+ cur_bb_spur = spur_freq[i] - chan->channel;
+
+ if (cur_bb_spur < 0) {
+ negative = 1;
+ cur_bb_spur = -cur_bb_spur;
+ }
+ if (cur_bb_spur < 10) {
+ cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
+
+ if (negative == 1)
+ cck_spur_freq = -cck_spur_freq;
+
+ cck_spur_freq = cck_spur_freq & 0xfffff;
+
+ REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
+ AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
+ 0x2);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
+ 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
+ cck_spur_freq);
+
+ return;
+ }
+ }
+
+ REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
+ AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
+ REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
+ AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
+}
+
+/* Clean all spur register fields */
+static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
+{
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
+
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
+ REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+ AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
+ AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+ AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+ AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+ AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
+ AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
+}
+
+static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
+ int freq_offset,
+ int spur_freq_sd,
+ int spur_delta_phase,
+ int spur_subchannel_sd)
+{
+ int mask_index = 0;
+
+ /* OFDM Spur mitigation */
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
+ REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+ AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING11,
+ AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
+
+ if (REG_READ_FIELD(ah, AR_PHY_MODE,
+ AR_PHY_MODE_DYNAMIC) == 0x1)
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
+
+ mask_index = (freq_offset << 4) / 5;
+ if (mask_index < 0)
+ mask_index = mask_index - 1;
+
+ mask_index = mask_index & 0x7f;
+
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_TIMING4,
+ AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+ AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
+ AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+ AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
+ REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
+ AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
+ AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
+ AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
+ REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
+ AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
+}
+
+static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
+ struct ath9k_channel *chan,
+ int freq_offset)
+{
+ int spur_freq_sd = 0;
+ int spur_subchannel_sd = 0;
+ int spur_delta_phase = 0;
+
+ if (IS_CHAN_HT40(chan)) {
+ if (freq_offset < 0) {
+ if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
+ AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
+ spur_subchannel_sd = 1;
+ else
+ spur_subchannel_sd = 0;
+
+ spur_freq_sd = ((freq_offset + 10) << 9) / 11;
+
+ } else {
+ if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
+ AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
+ spur_subchannel_sd = 0;
+ else
+ spur_subchannel_sd = 1;
+
+ spur_freq_sd = ((freq_offset - 10) << 9) / 11;
+
+ }
+
+ spur_delta_phase = (freq_offset << 17) / 5;
+
+ } else {
+ spur_subchannel_sd = 0;
+ spur_freq_sd = (freq_offset << 9) /11;
+ spur_delta_phase = (freq_offset << 18) / 5;
+ }
+
+ spur_freq_sd = spur_freq_sd & 0x3ff;
+ spur_delta_phase = spur_delta_phase & 0xfffff;
+
+ ar9003_hw_spur_ofdm(ah,
+ freq_offset,
+ spur_freq_sd,
+ spur_delta_phase,
+ spur_subchannel_sd);
+}
+
+/* Spur mitigation for OFDM */
+static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ int synth_freq;
+ int range = 10;
+ int freq_offset = 0;
+ int mode;
+ u8* spurChansPtr;
+ unsigned int i;
+ struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
+
+ if (IS_CHAN_5GHZ(chan)) {
+ spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
+ mode = 0;
+ }
+ else {
+ spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
+ mode = 1;
+ }
+
+ if (spurChansPtr[0] == 0)
+ return; /* No spur in the mode */
+
+ if (IS_CHAN_HT40(chan)) {
+ range = 19;
+ if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
+ AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
+ synth_freq = chan->channel - 10;
+ else
+ synth_freq = chan->channel + 10;
+ } else {
+ range = 10;
+ synth_freq = chan->channel;
+ }
+
+ ar9003_hw_spur_ofdm_clear(ah);
+
+ for (i = 0; spurChansPtr[i] && i < 5; i++) {
+ freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
+ if (abs(freq_offset) < range) {
+ ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
+ break;
+ }
+ }
+}
+
static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
+ ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
+ ar9003_hw_spur_mitigate_ofdm(ah, chan);
}
static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
- if (chan && IS_CHAN_5GHZ(chan)) {
- pll |= SM(0x28, AR_RTC_9300_PLL_DIV);
-
- /*
- * When doing fast clock, set PLL to 0x142c
- */
- if (IS_CHAN_A_5MHZ_SPACED(chan))
- pll = 0x142c;
- } else
- pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
+ pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
return pll;
}
static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
+ u32 phymode;
+ u32 enableDacFifo = 0;
+
+ enableDacFifo =
+ (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
+
+ /* Enable 11n HT, 20 MHz */
+ phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 | AR_PHY_GC_WALSH |
+ AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
+
+ /* Configure baseband for dynamic 20/40 operation */
+ if (IS_CHAN_HT40(chan)) {
+ phymode |= AR_PHY_GC_DYN2040_EN;
+ /* Configure control (primary) channel at +-10MHz */
+ if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
+ (chan->chanmode == CHANNEL_G_HT40PLUS))
+ phymode |= AR_PHY_GC_DYN2040_PRI_CH;
+
+ }
+
+ /* make sure we preserve INI settings */
+ phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
+ /* turn off Green Field detection for STA for now */
+ phymode &= ~AR_PHY_GC_GF_DETECT_EN;
+
+ REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
+
+ /* Configure MAC for 20/40 operation */
+ ath9k_hw_set11nmac2040(ah);
+
+ /* global transmit timeout (25 TUs default)*/
+ REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
+ /* carrier sense timeout */
+ REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
}
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)
+{
+ switch (rx) {
+ case 0x5:
+ REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
+ AR_PHY_SWAP_ALT_CHAIN);
+ case 0x3:
+ case 0x1:
+ case 0x2:
+ case 0x7:
+ REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
+ REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
+ break;
+ default:
+ break;
+ }
+
+ REG_WRITE(ah, AR_SELFGEN_MASK, tx);
+ if (tx == 0x5) {
+ REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
+ AR_PHY_SWAP_ALT_CHAIN);
+ }
+}
+
+/*
+ * Override INI values with chip specific configuration.
+ */
+static void ar9003_hw_override_ini(struct ath_hw *ah)
+{
+ u32 val;
+
+ /*
+ * Set the RX_ABORT and RX_DIS and clear it only after
+ * RXE is set for MAC. This prevents frames with
+ * corrupted descriptor status.
+ */
+ REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
+
+ /*
+ * For AR9280 and above, there is a new feature that allows
+ * Multicast search based on both MAC Address and Key ID. By default,
+ * this feature is enabled. But since the driver is not using this
+ * feature, we switch it off; otherwise multicast search based on
+ * MAC addr only will fail.
+ */
+ val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
+ REG_WRITE(ah, AR_PCU_MISC_MODE2,
+ val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
+}
+
+static void ar9003_hw_prog_ini(struct ath_hw *ah,
+ struct ar5416IniArray *iniArr,
+ int column)
+{
+ unsigned int i, regWrites = 0;
+
+ /* New INI format: Array may be undefined (pre, core, post arrays) */
+ if (!iniArr->ia_array)
+ return;
+
+ /*
+ * New INI format: Pre, core, and post arrays for a given subsystem
+ * may be modal (> 2 columns) or non-modal (2 columns). Determine if
+ * the array is non-modal and force the column to 1.
+ */
+ if (column >= iniArr->ia_columns)
+ column = 1;
+
+ for (i = 0; i < iniArr->ia_rows; i++) {
+ u32 reg = INI_RA(iniArr, i, 0);
+ u32 val = INI_RA(iniArr, i, column);
+
+ REG_WRITE(ah, reg, val);
+
+ /*
+ * Determine if this is a shift register value, and insert the
+ * configured delay if so.
+ */
+ if (reg >= 0x16000 && reg < 0x17000
+ && ah->config.analog_shiftreg)
+ udelay(100);
+
+ DO_DELAY(regWrites);
+ }
}
static int ar9003_hw_process_ini(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
- return -1;
+ struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
+ unsigned int regWrites = 0, i;
+ struct ieee80211_channel *channel = chan->chan;
+ u32 modesIndex, freqIndex;
+
+ switch (chan->chanmode) {
+ case CHANNEL_A:
+ case CHANNEL_A_HT20:
+ modesIndex = 1;
+ freqIndex = 1;
+ break;
+ case CHANNEL_A_HT40PLUS:
+ case CHANNEL_A_HT40MINUS:
+ modesIndex = 2;
+ freqIndex = 1;
+ break;
+ case CHANNEL_G:
+ case CHANNEL_G_HT20:
+ case CHANNEL_B:
+ modesIndex = 4;
+ freqIndex = 2;
+ break;
+ case CHANNEL_G_HT40PLUS:
+ case CHANNEL_G_HT40MINUS:
+ modesIndex = 3;
+ freqIndex = 2;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
+ ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
+ ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
+ ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
+ ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
+ }
+
+ REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
+ REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
+
+ /*
+ * For 5GHz channels requiring Fast Clock, apply
+ * different modal values.
+ */
+ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
+ REG_WRITE_ARRAY(&ah->iniModesAdditional,
+ modesIndex, regWrites);
+
+ ar9003_hw_override_ini(ah);
+ ar9003_hw_set_channel_regs(ah, chan);
+ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
+
+ /* Set TX power */
+ ah->eep_ops->set_txpower(ah, chan,
+ ath9k_regd_get_ctl(regulatory, chan),
+ channel->max_antenna_gain * 2,
+ channel->max_power * 2,
+ min((u32) MAX_RATE_POWER,
+ (u32) regulatory->power_limit));
+
+ return 0;
}
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_FAST_CLOCK(ah, 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)
+{
+ 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;
+}
+
+static void ar9003_hw_nf_sanitize_2g(struct ath_hw *ah, s16 *nf)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (*nf > ah->nf_2g_max) {
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "2 GHz NF (%d) > MAX (%d), "
+ "correcting to MAX",
+ *nf, ah->nf_2g_max);
+ *nf = ah->nf_2g_max;
+ } else if (*nf < ah->nf_2g_min) {
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "2 GHz NF (%d) < MIN (%d), "
+ "correcting to MIN",
+ *nf, ah->nf_2g_min);
+ *nf = ah->nf_2g_min;
+ }
+}
+
+static void ar9003_hw_nf_sanitize_5g(struct ath_hw *ah, s16 *nf)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (*nf > ah->nf_5g_max) {
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "5 GHz NF (%d) > MAX (%d), "
+ "correcting to MAX",
+ *nf, ah->nf_5g_max);
+ *nf = ah->nf_5g_max;
+ } else if (*nf < ah->nf_5g_min) {
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "5 GHz NF (%d) < MIN (%d), "
+ "correcting to MIN",
+ *nf, ah->nf_5g_min);
+ *nf = ah->nf_5g_min;
+ }
+}
+
+static void ar9003_hw_nf_sanitize(struct ath_hw *ah, s16 *nf)
+{
+ if (IS_CHAN_2GHZ(ah->curchan))
+ ar9003_hw_nf_sanitize_2g(ah, nf);
+ else
+ ar9003_hw_nf_sanitize_5g(ah, nf);
+}
+
+static void ar9003_hw_do_getnf(struct ath_hw *ah,
+ int16_t nfarray[NUM_NF_READINGS])
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int16_t nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ctl] [chain 0] is %d\n", nf);
+ nfarray[0] = nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ctl] [chain 1] is %d\n", nf);
+ nfarray[1] = nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ctl] [chain 2] is %d\n", nf);
+ nfarray[2] = nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ext] [chain 0] is %d\n", nf);
+ nfarray[3] = nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ext] [chain 1] is %d\n", nf);
+ nfarray[4] = nf;
+
+ nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
+ if (nf & 0x100)
+ nf = 0 - ((nf ^ 0x1ff) + 1);
+ ar9003_hw_nf_sanitize(ah, &nf);
+ ath_print(common, ATH_DBG_CALIBRATE,
+ "NF calibrated [ext] [chain 2] is %d\n", nf);
+ nfarray[5] = nf;
+}
+
+void ar9003_hw_set_nf_limits(struct ath_hw *ah)
+{
+ ah->nf_2g_max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
+ ah->nf_2g_min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
+ ah->nf_5g_max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
+ ah->nf_5g_min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
+}
+
+/*
+ * Find out which of the RX chains are enabled
+ */
+static u32 ar9003_hw_get_rx_chainmask(struct ath_hw *ah)
+{
+ u32 chain = REG_READ(ah, AR_PHY_RX_CHAINMASK);
+ /*
+ * The bits [2:0] indicate the rx chain mask and are to be
+ * interpreted as follows:
+ * 00x => Only chain 0 is enabled
+ * 01x => Chain 1 and 0 enabled
+ * 1xx => Chain 2,1 and 0 enabled
+ */
+ return chain & 0x7;
+}
+
+static void ar9003_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ struct ath9k_nfcal_hist *h;
+ unsigned i, j;
+ int32_t val;
+ const u32 ar9300_cca_regs[6] = {
+ AR_PHY_CCA_0,
+ AR_PHY_CCA_1,
+ AR_PHY_CCA_2,
+ AR_PHY_EXT_CCA,
+ AR_PHY_EXT_CCA_1,
+ AR_PHY_EXT_CCA_2,
+ };
+ u8 chainmask, rx_chain_status;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ rx_chain_status = ar9003_hw_get_rx_chainmask(ah);
+
+ chainmask = 0x3F;
+ h = ah->nfCalHist;
+
+ for (i = 0; i < NUM_NF_READINGS; i++) {
+ if (chainmask & (1 << i)) {
+ val = REG_READ(ah, ar9300_cca_regs[i]);
+ val &= 0xFFFFFE00;
+ val |= (((u32) (h[i].privNF) << 1) & 0x1ff);
+ REG_WRITE(ah, ar9300_cca_regs[i], val);
+ }
+ }
+
+ /*
+ * Load software filtered NF value into baseband internal minCCApwr
+ * variable.
+ */
+ REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
+ AR_PHY_AGC_CONTROL_ENABLE_NF);
+ REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
+ AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
+ REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
+
+ /*
+ * Wait for load to complete, should be fast, a few 10s of us.
+ * The max delay was changed from an original 250us to 10000us
+ * since 250us often results in NF load timeout and causes deaf
+ * condition during stress testing 12/12/2009
+ */
+ for (j = 0; j < 1000; j++) {
+ if ((REG_READ(ah, AR_PHY_AGC_CONTROL) &
+ AR_PHY_AGC_CONTROL_NF) == 0)
+ break;
+ udelay(10);
+ }
+
+ /*
+ * We timed out waiting for the noisefloor to load, probably due to an
+ * in-progress rx. Simply return here and allow the load plenty of time
+ * to complete before the next calibration interval. We need to avoid
+ * trying to load -50 (which happens below) while the previous load is
+ * still in progress as this can cause rx deafness. Instead by returning
+ * here, the baseband nf cal will just be capped by our present
+ * noisefloor until the next calibration timer.
+ */
+ if (j == 1000) {
+ ath_print(common, ATH_DBG_ANY, "Timeout while waiting for nf "
+ "to load: AR_PHY_AGC_CONTROL=0x%x\n",
+ REG_READ(ah, AR_PHY_AGC_CONTROL));
+ }
+
+ /*
+ * Restore maxCCAPower register parameter again so that we're not capped
+ * by the median we just loaded. This will be initial (and max) value
+ * of next noise floor calibration the baseband does.
+ */
+ for (i = 0; i < NUM_NF_READINGS; i++) {
+ if (chainmask & (1 << i)) {
+ val = REG_READ(ah, ar9300_cca_regs[i]);
+ val &= 0xFFFFFE00;
+ val |= (((u32) (-50) << 1) & 0x1ff);
+ REG_WRITE(ah, ar9300_cca_regs[i], val);
+ }
+ }
}
void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
priv_ops->rfbus_done = ar9003_hw_rfbus_done;
priv_ops->enable_rfkill = ar9003_hw_enable_rfkill;
priv_ops->set_diversity = ar9003_hw_set_diversity;
+ priv_ops->ani_control = ar9003_hw_ani_control;
+ priv_ops->do_getnf = ar9003_hw_do_getnf;
+ priv_ops->loadnf = ar9003_hw_loadnf;
}
projects / deliverable / linux.git / blobdiff