Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 190 ++++++++++++++++++++++++++-
drivers/net/wireless/ath/ath9k/reg.h | 13 ++
2 files changed, 200 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index a54a53f..89a82f7 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -182,7 +182,40 @@ static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
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,
@@ -191,11 +224,162 @@ static void ar9003_hw_init_bb(struct ath_hw *ah,
/* TODO */
}
+static void ar9003_hw_init_chain_masks(struct ath_hw *ah)
+{
+ int rx_chainmask, tx_chainmask;
+
+ rx_chainmask = ah->rxchainmask;
+ tx_chainmask = ah->txchainmask;
+
+ switch (rx_chainmask) {
+ 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_chainmask);
+ REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
+ break;
+ default:
+ break;
+ }
+
+ REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
+ if (tx_chainmask == 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_5MHZ_SPACED(chan))
+ REG_WRITE_ARRAY(&ah->iniModesAdditional,
+ modesIndex, regWrites);
+
+ ar9003_hw_override_ini(ah);
+ ar9003_hw_set_channel_regs(ah, chan);
+ ar9003_hw_init_chain_masks(ah);
+
+ /* 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,
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 9d63286..96b2cfe 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1756,4 +1756,17 @@ enum {
#define AR9271_CORE_CLOCK 117 /* clock to 117Mhz */
#define AR9271_TARGET_BAUD_RATE 19200 /* 115200 */
+#define AR_AGG_WEP_ENABLE_FIX 0x00000008 /* This allows the use of AR_AGG_WEP_ENABLE */
+#define AR_ADHOC_MCAST_KEYID_ENABLE 0x00000040 /* This bit enables the Multicast search
+ * based on both MAC Address and Key ID.
+ * If bit is 0, then Multicast search is
+ * based on MAC address only.
+ * For Merlin and above only.
+ */
+#define AR_AGG_WEP_ENABLE 0x00020000 /* This field enables AGG_WEP feature,
+ * when it is enable, AGG_WEP would takes
+ * charge of the encryption interface of
+ * pcu_txsm.
+ */
+
#endif
--
1.6.3.3
--
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