aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/ar5008_phy.c
diff options
context:
space:
mode:
authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-04-15 17:38:14 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-04-16 15:43:19 -0400
commit8fe6536850ae49609704a263cbc7542133536922 (patch)
tree68560fc5132795bbd422d8ecfdf62014f59d8598 /drivers/net/wireless/ath/ath9k/ar5008_phy.c
parentaed1baf1ab10f4b6bd40952a9deb791dbba48f3a (diff)
ath9k_hw: Move some RF ops to the private callbacks
The PHY split is easier done in a few steps. First move the RF ops to the private ops and rename them accordingly. We split PHY stuff up first for the AR5008 and AR9002 families. There are some callbacks that AR9002 share with the AR5008 familiy so we set those first, if AR9002 has some different callbacks it will override them upon hardware init. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar5008_phy.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar5008_phy.c991
1 files changed, 991 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
new file mode 100644
index 00000000000..982b0d3877f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -0,0 +1,991 @@
+/*
+ * Copyright (c) 2008-2010 Atheros Communications Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "hw.h"
+#include "hw-ops.h"
+#include "../regd.h"
+#include "ar9002_phy.h"
+
+/* All code below is for non single-chip solutions */
+
+/**
+ * ar5008_hw_phy_modify_rx_buffer() - perform analog swizzling of parameters
+ * @rfbuf:
+ * @reg32:
+ * @numBits:
+ * @firstBit:
+ * @column:
+ *
+ * Performs analog "swizzling" of parameters into their location.
+ * Used on external AR2133/AR5133 radios.
+ */
+static void ar5008_hw_phy_modify_rx_buffer(u32 *rfBuf, u32 reg32,
+ u32 numBits, u32 firstBit,
+ u32 column)
+{
+ u32 tmp32, mask, arrayEntry, lastBit;
+ int32_t bitPosition, bitsLeft;
+
+ tmp32 = ath9k_hw_reverse_bits(reg32, numBits);
+ arrayEntry = (firstBit - 1) / 8;
+ bitPosition = (firstBit - 1) % 8;
+ bitsLeft = numBits;
+ while (bitsLeft > 0) {
+ lastBit = (bitPosition + bitsLeft > 8) ?
+ 8 : bitPosition + bitsLeft;
+ mask = (((1 << lastBit) - 1) ^ ((1 << bitPosition) - 1)) <<
+ (column * 8);
+ rfBuf[arrayEntry] &= ~mask;
+ rfBuf[arrayEntry] |= ((tmp32 << bitPosition) <<
+ (column * 8)) & mask;
+ bitsLeft -= 8 - bitPosition;
+ tmp32 = tmp32 >> (8 - bitPosition);
+ bitPosition = 0;
+ arrayEntry++;
+ }
+}
+
+/*
+ * Fix on 2.4 GHz band for orientation sensitivity issue by increasing
+ * rf_pwd_icsyndiv.
+ *
+ * Theoretical Rules:
+ * if 2 GHz band
+ * if forceBiasAuto
+ * if synth_freq < 2412
+ * bias = 0
+ * else if 2412 <= synth_freq <= 2422
+ * bias = 1
+ * else // synth_freq > 2422
+ * bias = 2
+ * else if forceBias > 0
+ * bias = forceBias & 7
+ * else
+ * no change, use value from ini file
+ * else
+ * no change, invalid band
+ *
+ * 1st Mod:
+ * 2422 also uses value of 2
+ * <approved>
+ *
+ * 2nd Mod:
+ * Less than 2412 uses value of 0, 2412 and above uses value of 2
+ */
+static void ar5008_hw_force_bias(struct ath_hw *ah, u16 synth_freq)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 tmp_reg;
+ int reg_writes = 0;
+ u32 new_bias = 0;
+
+ if (!AR_SREV_5416(ah) || synth_freq >= 3000)
+ return;
+
+ BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
+
+ if (synth_freq < 2412)
+ new_bias = 0;
+ else if (synth_freq < 2422)
+ new_bias = 1;
+ else
+ new_bias = 2;
+
+ /* pre-reverse this field */
+ tmp_reg = ath9k_hw_reverse_bits(new_bias, 3);
+
+ ath_print(common, ATH_DBG_CONFIG,
+ "Force rf_pwd_icsyndiv to %1d on %4d\n",
+ new_bias, synth_freq);
+
+ /* swizzle rf_pwd_icsyndiv */
+ ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data, tmp_reg, 3, 181, 3);
+
+ /* write Bank 6 with new params */
+ REG_WRITE_RF_ARRAY(&ah->iniBank6, ah->analogBank6Data, reg_writes);
+}
+
+/**
+ * ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
+ * @ah: atheros hardware stucture
+ * @chan:
+ *
+ * For the external AR2133/AR5133 radios, takes the MHz channel value and set
+ * the channel value. Assumes writes enabled to analog bus and bank6 register
+ * cache in ah->analogBank6Data.
+ */
+static int ar5008_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 channelSel = 0;
+ u32 bModeSynth = 0;
+ u32 aModeRefSel = 0;
+ u32 reg32 = 0;
+ u16 freq;
+ struct chan_centers centers;
+
+ ath9k_hw_get_channel_centers(ah, chan, &centers);
+ freq = centers.synth_center;
+
+ if (freq < 4800) {
+ u32 txctl;
+
+ if (((freq - 2192) % 5) == 0) {
+ channelSel = ((freq - 672) * 2 - 3040) / 10;
+ bModeSynth = 0;
+ } else if (((freq - 2224) % 5) == 0) {
+ channelSel = ((freq - 704) * 2 - 3040) / 10;
+ bModeSynth = 1;
+ } else {
+ ath_print(common, ATH_DBG_FATAL,
+ "Invalid channel %u MHz\n", freq);
+ return -EINVAL;
+ }
+
+ channelSel = (channelSel << 2) & 0xff;
+ channelSel = ath9k_hw_reverse_bits(channelSel, 8);
+
+ txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
+ if (freq == 2484) {
+
+ REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
+ txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
+ } else {
+ REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
+ txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
+ }
+
+ } else if ((freq % 20) == 0 && freq >= 5120) {
+ channelSel =
+ ath9k_hw_reverse_bits(((freq - 4800) / 20 << 2), 8);
+ aModeRefSel = ath9k_hw_reverse_bits(1, 2);
+ } else if ((freq % 10) == 0) {
+ channelSel =
+ ath9k_hw_reverse_bits(((freq - 4800) / 10 << 1), 8);
+ if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
+ aModeRefSel = ath9k_hw_reverse_bits(2, 2);
+ else
+ aModeRefSel = ath9k_hw_reverse_bits(1, 2);
+ } else if ((freq % 5) == 0) {
+ channelSel = ath9k_hw_reverse_bits((freq - 4800) / 5, 8);
+ aModeRefSel = ath9k_hw_reverse_bits(1, 2);
+ } else {
+ ath_print(common, ATH_DBG_FATAL,
+ "Invalid channel %u MHz\n", freq);
+ return -EINVAL;
+ }
+
+ ar5008_hw_force_bias(ah, freq);
+
+ reg32 =
+ (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
+ (1 << 5) | 0x1;
+
+ REG_WRITE(ah, AR_PHY(0x37), reg32);
+
+ ah->curchan = chan;
+ ah->curchan_rad_index = -1;
+
+ return 0;
+}
+
+/**
+ * ar5008_hw_spur_mitigate - convert baseband spur frequency for external radios
+ * @ah: atheros hardware structure
+ * @chan:
+ *
+ * For non single-chip solutions. Converts to baseband spur frequency given the
+ * input channel frequency and compute register settings below.
+ */
+static void ar5008_hw_spur_mitigate(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ int bb_spur = AR_NO_SPUR;
+ int bin, cur_bin;
+ int spur_freq_sd;
+ int spur_delta_phase;
+ int denominator;
+ int upper, lower, cur_vit_mask;
+ int tmp, new;
+ int i;
+ int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
+ AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
+ };
+ int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
+ AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
+ };
+ int inc[4] = { 0, 100, 0, 0 };
+
+ int8_t mask_m[123];
+ int8_t mask_p[123];
+ int8_t mask_amt;
+ int tmp_mask;
+ int cur_bb_spur;
+ bool is2GHz = IS_CHAN_2GHZ(chan);
+
+ memset(&mask_m, 0, sizeof(int8_t) * 123);
+ memset(&mask_p, 0, sizeof(int8_t) * 123);
+
+ for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
+ cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
+ if (AR_NO_SPUR == cur_bb_spur)
+ break;
+ cur_bb_spur = cur_bb_spur - (chan->channel * 10);
+ if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
+ bb_spur = cur_bb_spur;
+ break;
+ }
+ }
+
+ if (AR_NO_SPUR == bb_spur)
+ return;
+
+ bin = bb_spur * 32;
+
+ tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
+ new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
+ AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
+ AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
+ AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
+
+ REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
+
+ new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
+ AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
+ AR_PHY_SPUR_REG_MASK_RATE_SELECT |
+ AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
+ SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
+ REG_WRITE(ah, AR_PHY_SPUR_REG, new);
+
+ spur_delta_phase = ((bb_spur * 524288) / 100) &
+ AR_PHY_TIMING11_SPUR_DELTA_PHASE;
+
+ denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
+ spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
+
+ new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
+ SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
+ SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
+ REG_WRITE(ah, AR_PHY_TIMING11, new);
+
+ cur_bin = -6000;
+ upper = bin + 100;
+ lower = bin - 100;
+
+ for (i = 0; i < 4; i++) {
+ int pilot_mask = 0;
+ int chan_mask = 0;
+ int bp = 0;
+ for (bp = 0; bp < 30; bp++) {
+ if ((cur_bin > lower) && (cur_bin < upper)) {
+ pilot_mask = pilot_mask | 0x1 << bp;
+ chan_mask = chan_mask | 0x1 << bp;
+ }
+ cur_bin += 100;
+ }
+ cur_bin += inc[i];
+ REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
+ REG_WRITE(ah, chan_mask_reg[i], chan_mask);
+ }
+
+ cur_vit_mask = 6100;
+ upper = bin + 120;
+ lower = bin - 120;
+
+ for (i = 0; i < 123; i++) {
+ if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
+
+ /* workaround for gcc bug #37014 */
+ volatile int tmp_v = abs(cur_vit_mask - bin);
+
+ if (tmp_v < 75)
+ mask_amt = 1;
+ else
+ mask_amt = 0;
+ if (cur_vit_mask < 0)
+ mask_m[abs(cur_vit_mask / 100)] = mask_amt;
+ else
+ mask_p[cur_vit_mask / 100] = mask_amt;
+ }
+ cur_vit_mask -= 100;
+ }
+
+ tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
+ | (mask_m[48] << 26) | (mask_m[49] << 24)
+ | (mask_m[50] << 22) | (mask_m[51] << 20)
+ | (mask_m[52] << 18) | (mask_m[53] << 16)
+ | (mask_m[54] << 14) | (mask_m[55] << 12)
+ | (mask_m[56] << 10) | (mask_m[57] << 8)
+ | (mask_m[58] << 6) | (mask_m[59] << 4)
+ | (mask_m[60] << 2) | (mask_m[61] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
+ REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
+
+ tmp_mask = (mask_m[31] << 28)
+ | (mask_m[32] << 26) | (mask_m[33] << 24)
+ | (mask_m[34] << 22) | (mask_m[35] << 20)
+ | (mask_m[36] << 18) | (mask_m[37] << 16)
+ | (mask_m[48] << 14) | (mask_m[39] << 12)
+ | (mask_m[40] << 10) | (mask_m[41] << 8)
+ | (mask_m[42] << 6) | (mask_m[43] << 4)
+ | (mask_m[44] << 2) | (mask_m[45] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
+
+ tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
+ | (mask_m[18] << 26) | (mask_m[18] << 24)
+ | (mask_m[20] << 22) | (mask_m[20] << 20)
+ | (mask_m[22] << 18) | (mask_m[22] << 16)
+ | (mask_m[24] << 14) | (mask_m[24] << 12)
+ | (mask_m[25] << 10) | (mask_m[26] << 8)
+ | (mask_m[27] << 6) | (mask_m[28] << 4)
+ | (mask_m[29] << 2) | (mask_m[30] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
+
+ tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
+ | (mask_m[2] << 26) | (mask_m[3] << 24)
+ | (mask_m[4] << 22) | (mask_m[5] << 20)
+ | (mask_m[6] << 18) | (mask_m[7] << 16)
+ | (mask_m[8] << 14) | (mask_m[9] << 12)
+ | (mask_m[10] << 10) | (mask_m[11] << 8)
+ | (mask_m[12] << 6) | (mask_m[13] << 4)
+ | (mask_m[14] << 2) | (mask_m[15] << 0);
+ REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
+
+ tmp_mask = (mask_p[15] << 28)
+ | (mask_p[14] << 26) | (mask_p[13] << 24)
+ | (mask_p[12] << 22) | (mask_p[11] << 20)
+ | (mask_p[10] << 18) | (mask_p[9] << 16)
+ | (mask_p[8] << 14) | (mask_p[7] << 12)
+ | (mask_p[6] << 10) | (mask_p[5] << 8)
+ | (mask_p[4] << 6) | (mask_p[3] << 4)
+ | (mask_p[2] << 2) | (mask_p[1] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
+
+ tmp_mask = (mask_p[30] << 28)
+ | (mask_p[29] << 26) | (mask_p[28] << 24)
+ | (mask_p[27] << 22) | (mask_p[26] << 20)
+ | (mask_p[25] << 18) | (mask_p[24] << 16)
+ | (mask_p[23] << 14) | (mask_p[22] << 12)
+ | (mask_p[21] << 10) | (mask_p[20] << 8)
+ | (mask_p[19] << 6) | (mask_p[18] << 4)
+ | (mask_p[17] << 2) | (mask_p[16] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
+
+ tmp_mask = (mask_p[45] << 28)
+ | (mask_p[44] << 26) | (mask_p[43] << 24)
+ | (mask_p[42] << 22) | (mask_p[41] << 20)
+ | (mask_p[40] << 18) | (mask_p[39] << 16)
+ | (mask_p[38] << 14) | (mask_p[37] << 12)
+ | (mask_p[36] << 10) | (mask_p[35] << 8)
+ | (mask_p[34] << 6) | (mask_p[33] << 4)
+ | (mask_p[32] << 2) | (mask_p[31] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
+
+ tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
+ | (mask_p[59] << 26) | (mask_p[58] << 24)
+ | (mask_p[57] << 22) | (mask_p[56] << 20)
+ | (mask_p[55] << 18) | (mask_p[54] << 16)
+ | (mask_p[53] << 14) | (mask_p[52] << 12)
+ | (mask_p[51] << 10) | (mask_p[50] << 8)
+ | (mask_p[49] << 6) | (mask_p[48] << 4)
+ | (mask_p[47] << 2) | (mask_p[46] << 0);
+ REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
+ REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
+}
+
+/**
+ * ar5008_hw_rf_alloc_ext_banks - allocates banks for external radio programming
+ * @ah: atheros hardware structure
+ *
+ * Only required for older devices with external AR2133/AR5133 radios.
+ */
+static int ar5008_hw_rf_alloc_ext_banks(struct ath_hw *ah)
+{
+#define ATH_ALLOC_BANK(bank, size) do { \
+ bank = kzalloc((sizeof(u32) * size), GFP_KERNEL); \
+ if (!bank) { \
+ ath_print(common, ATH_DBG_FATAL, \
+ "Cannot allocate RF banks\n"); \
+ return -ENOMEM; \
+ } \
+ } while (0);
+
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
+
+ ATH_ALLOC_BANK(ah->analogBank0Data, ah->iniBank0.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank1Data, ah->iniBank1.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank2Data, ah->iniBank2.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank3Data, ah->iniBank3.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank6Data, ah->iniBank6.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank6TPCData, ah->iniBank6TPC.ia_rows);
+ ATH_ALLOC_BANK(ah->analogBank7Data, ah->iniBank7.ia_rows);
+ ATH_ALLOC_BANK(ah->addac5416_21,
+ ah->iniAddac.ia_rows * ah->iniAddac.ia_columns);
+ ATH_ALLOC_BANK(ah->bank6Temp, ah->iniBank6.ia_rows);
+
+ return 0;
+#undef ATH_ALLOC_BANK
+}
+
+
+/**
+ * ar5008_hw_rf_free_ext_banks - Free memory for analog bank scratch buffers
+ * @ah: atheros hardware struture
+ * For the external AR2133/AR5133 radios banks.
+ */
+static void ar5008_hw_rf_free_ext_banks(struct ath_hw *ah)
+{
+#define ATH_FREE_BANK(bank) do { \
+ kfree(bank); \
+ bank = NULL; \
+ } while (0);
+
+ BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
+
+ ATH_FREE_BANK(ah->analogBank0Data);
+ ATH_FREE_BANK(ah->analogBank1Data);
+ ATH_FREE_BANK(ah->analogBank2Data);
+ ATH_FREE_BANK(ah->analogBank3Data);
+ ATH_FREE_BANK(ah->analogBank6Data);
+ ATH_FREE_BANK(ah->analogBank6TPCData);
+ ATH_FREE_BANK(ah->analogBank7Data);
+ ATH_FREE_BANK(ah->addac5416_21);
+ ATH_FREE_BANK(ah->bank6Temp);
+
+#undef ATH_FREE_BANK
+}
+
+/* *
+ * ar5008_hw_set_rf_regs - programs rf registers based on EEPROM
+ * @ah: atheros hardware structure
+ * @chan:
+ * @modesIndex:
+ *
+ * Used for the external AR2133/AR5133 radios.
+ *
+ * Reads the EEPROM header info from the device structure and programs
+ * all rf registers. This routine requires access to the analog
+ * rf device. This is not required for single-chip devices.
+ */
+static bool ar5008_hw_set_rf_regs(struct ath_hw *ah,
+ struct ath9k_channel *chan,
+ u16 modesIndex)
+{
+ u32 eepMinorRev;
+ u32 ob5GHz = 0, db5GHz = 0;
+ u32 ob2GHz = 0, db2GHz = 0;
+ int regWrites = 0;
+
+ /*
+ * Software does not need to program bank data
+ * for single chip devices, that is AR9280 or anything
+ * after that.
+ */
+ if (AR_SREV_9280_10_OR_LATER(ah))
+ return true;
+
+ /* Setup rf parameters */
+ eepMinorRev = ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV);
+
+ /* Setup Bank 0 Write */
+ RF_BANK_SETUP(ah->analogBank0Data, &ah->iniBank0, 1);
+
+ /* Setup Bank 1 Write */
+ RF_BANK_SETUP(ah->analogBank1Data, &ah->iniBank1, 1);
+
+ /* Setup Bank 2 Write */
+ RF_BANK_SETUP(ah->analogBank2Data, &ah->iniBank2, 1);
+
+ /* Setup Bank 6 Write */
+ RF_BANK_SETUP(ah->analogBank3Data, &ah->iniBank3,
+ modesIndex);
+ {
+ int i;
+ for (i = 0; i < ah->iniBank6TPC.ia_rows; i++) {
+ ah->analogBank6Data[i] =
+ INI_RA(&ah->iniBank6TPC, i, modesIndex);
+ }
+ }
+
+ /* Only the 5 or 2 GHz OB/DB need to be set for a mode */
+ if (eepMinorRev >= 2) {
+ if (IS_CHAN_2GHZ(chan)) {
+ ob2GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_2);
+ db2GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_2);
+ ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
+ ob2GHz, 3, 197, 0);
+ ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
+ db2GHz, 3, 194, 0);
+ } else {
+ ob5GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_5);
+ db5GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_5);
+ ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
+ ob5GHz, 3, 203, 0);
+ ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
+ db5GHz, 3, 200, 0);
+ }
+ }
+
+ /* Setup Bank 7 Setup */
+ RF_BANK_SETUP(ah->analogBank7Data, &ah->iniBank7, 1);
+
+ /* Write Analog registers */
+ REG_WRITE_RF_ARRAY(&ah->iniBank0, ah->analogBank0Data,
+ regWrites);
+ REG_WRITE_RF_ARRAY(&ah->iniBank1, ah->analogBank1Data,
+ regWrites);
+ REG_WRITE_RF_ARRAY(&ah->iniBank2, ah->analogBank2Data,
+ regWrites);
+ REG_WRITE_RF_ARRAY(&ah->iniBank3, ah->analogBank3Data,
+ regWrites);
+ REG_WRITE_RF_ARRAY(&ah->iniBank6TPC, ah->analogBank6Data,
+ regWrites);
+ REG_WRITE_RF_ARRAY(&ah->iniBank7, ah->analogBank7Data,
+ regWrites);
+
+ return true;
+}
+
+static void ar5008_hw_init_bb(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 synthDelay;
+
+ 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;
+
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+
+ udelay(synthDelay + BASE_ACTIVATE_DELAY);
+}
+
+static void ar5008_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:
+ if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
+ REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
+ REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
+ break;
+ }
+ 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);
+ }
+ if (AR_SREV_9100(ah))
+ REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
+ REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
+}
+
+static void ar5008_hw_override_ini(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 val;
+
+ /*
+ * Set the RX_ABORT and RX_DIS and clear if off 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));
+
+ if (AR_SREV_9280_10_OR_LATER(ah)) {
+ val = REG_READ(ah, AR_PCU_MISC_MODE2);
+
+ if (!AR_SREV_9271(ah))
+ val &= ~AR_PCU_MISC_MODE2_HWWAR1;
+
+ if (AR_SREV_9287_10_OR_LATER(ah))
+ val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
+
+ REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
+ }
+
+ if (!AR_SREV_5416_20_OR_LATER(ah) ||
+ AR_SREV_9280_10_OR_LATER(ah))
+ return;
+ /*
+ * Disable BB clock gating
+ * Necessary to avoid issues on AR5416 2.0
+ */
+ REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
+
+ /*
+ * Disable RIFS search on some chips to avoid baseband
+ * hang issues.
+ */
+ if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
+ val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
+ val &= ~AR_PHY_RIFS_INIT_DELAY;
+ REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
+ }
+}
+
+static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 phymode;
+ u32 enableDacFifo = 0;
+
+ if (AR_SREV_9285_10_OR_LATER(ah))
+ enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
+ AR_PHY_FC_ENABLE_DAC_FIFO);
+
+ phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
+ | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
+
+ if (IS_CHAN_HT40(chan)) {
+ phymode |= AR_PHY_FC_DYN2040_EN;
+
+ if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
+ (chan->chanmode == CHANNEL_G_HT40PLUS))
+ phymode |= AR_PHY_FC_DYN2040_PRI_CH;
+
+ }
+ REG_WRITE(ah, AR_PHY_TURBO, phymode);
+
+ ath9k_hw_set11nmac2040(ah);
+
+ REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
+ REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
+}
+
+
+static int ar5008_hw_process_ini(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
+ int i, regWrites = 0;
+ 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;
+ }
+
+ if (AR_SREV_9287_12_OR_LATER(ah)) {
+ /* Enable ASYNC FIFO */
+ REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
+ AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
+ REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
+ REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
+ AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
+ REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
+ AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
+ }
+
+ /*
+ * Set correct baseband to analog shift setting to
+ * access analog chips.
+ */
+ REG_WRITE(ah, AR_PHY(0), 0x00000007);
+
+ /* Write ADDAC shifts */
+ REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
+ ah->eep_ops->set_addac(ah, chan);
+
+ if (AR_SREV_5416_22_OR_LATER(ah)) {
+ REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
+ } else {
+ struct ar5416IniArray temp;
+ u32 addacSize =
+ sizeof(u32) * ah->iniAddac.ia_rows *
+ ah->iniAddac.ia_columns;
+
+ /* For AR5416 2.0/2.1 */
+ memcpy(ah->addac5416_21,
+ ah->iniAddac.ia_array, addacSize);
+
+ /* override CLKDRV value at [row, column] = [31, 1] */
+ (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
+
+ temp.ia_array = ah->addac5416_21;
+ temp.ia_columns = ah->iniAddac.ia_columns;
+ temp.ia_rows = ah->iniAddac.ia_rows;
+ REG_WRITE_ARRAY(&temp, 1, regWrites);
+ }
+
+ REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
+
+ for (i = 0; i < ah->iniModes.ia_rows; i++) {
+ u32 reg = INI_RA(&ah->iniModes, i, 0);
+ u32 val = INI_RA(&ah->iniModes, i, modesIndex);
+
+ if (reg == AR_AN_TOP2 && ah->need_an_top2_fixup)
+ val &= ~AR_AN_TOP2_PWDCLKIND;
+
+ REG_WRITE(ah, reg, val);
+
+ if (reg >= 0x7800 && reg < 0x78a0
+ && ah->config.analog_shiftreg) {
+ udelay(100);
+ }
+
+ DO_DELAY(regWrites);
+ }
+
+ if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
+ REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
+
+ if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
+ AR_SREV_9287_10_OR_LATER(ah))
+ REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
+
+ if (AR_SREV_9271_10(ah))
+ REG_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
+ modesIndex, regWrites);
+
+ /* Write common array parameters */
+ for (i = 0; i < ah->iniCommon.ia_rows; i++) {
+ u32 reg = INI_RA(&ah->iniCommon, i, 0);
+ u32 val = INI_RA(&ah->iniCommon, i, 1);
+
+ REG_WRITE(ah, reg, val);
+
+ if (reg >= 0x7800 && reg < 0x78a0
+ && ah->config.analog_shiftreg) {
+ udelay(100);
+ }
+
+ DO_DELAY(regWrites);
+ }
+
+ if (AR_SREV_9271(ah)) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
+ REG_WRITE_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
+ modesIndex, regWrites);
+ else
+ REG_WRITE_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
+ modesIndex, regWrites);
+ }
+
+ REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites);
+
+ if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
+ REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
+ regWrites);
+ }
+
+ ar5008_hw_override_ini(ah, chan);
+ ar5008_hw_set_channel_regs(ah, chan);
+ ar5008_hw_init_chain_masks(ah);
+ ath9k_olc_init(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));
+
+ /* Write analog registers */
+ if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
+ ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
+ "ar5416SetRfRegs failed\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ 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 (!AR_SREV_9280_10_OR_LATER(ah))
+ rfMode |= (IS_CHAN_5GHZ(chan)) ?
+ AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
+
+ if ((AR_SREV_9280_20(ah) || AR_SREV_9300_20_OR_LATER(ah))
+ && 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 ar5008_hw_mark_phy_inactive(struct ath_hw *ah)
+{
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
+}
+
+static void ar5008_hw_set_delta_slope(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 coef_scaled, ds_coef_exp, ds_coef_man;
+ u32 clockMhzScaled = 0x64000000;
+ struct chan_centers centers;
+
+ if (IS_CHAN_HALF_RATE(chan))
+ clockMhzScaled = clockMhzScaled >> 1;
+ else if (IS_CHAN_QUARTER_RATE(chan))
+ clockMhzScaled = clockMhzScaled >> 2;
+
+ ath9k_hw_get_channel_centers(ah, chan, &centers);
+ 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);
+
+ coef_scaled = (9 * coef_scaled) / 10;
+
+ ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
+ &ds_coef_exp);
+
+ REG_RMW_FIELD(ah, AR_PHY_HALFGI,
+ AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
+ REG_RMW_FIELD(ah, AR_PHY_HALFGI,
+ AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
+}
+
+static bool ar5008_hw_rfbus_req(struct ath_hw *ah)
+{
+ 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);
+}
+
+static void ar5008_hw_rfbus_done(struct ath_hw *ah)
+{
+ 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);
+}
+
+static void ar5008_hw_enable_rfkill(struct ath_hw *ah)
+{
+ REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
+ AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
+
+ REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
+ AR_GPIO_INPUT_MUX2_RFSILENT);
+
+ ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
+ REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
+}
+
+static void ar5008_restore_chainmask(struct ath_hw *ah)
+{
+ int rx_chainmask = ah->rxchainmask;
+
+ if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
+ REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
+ REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
+ }
+}
+
+static void ar5008_set_diversity(struct ath_hw *ah, bool value)
+{
+ 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);
+}
+
+void ar5008_hw_attach_phy_ops(struct ath_hw *ah)
+{
+ struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
+
+ priv_ops->rf_set_freq = ar5008_hw_set_channel;
+ priv_ops->spur_mitigate_freq = ar5008_hw_spur_mitigate;
+
+ priv_ops->rf_alloc_ext_banks = ar5008_hw_rf_alloc_ext_banks;
+ priv_ops->rf_free_ext_banks = ar5008_hw_rf_free_ext_banks;
+ priv_ops->set_rf_regs = ar5008_hw_set_rf_regs;
+ priv_ops->set_channel_regs = ar5008_hw_set_channel_regs;
+ priv_ops->init_bb = ar5008_hw_init_bb;
+ priv_ops->process_ini = ar5008_hw_process_ini;
+ priv_ops->set_rfmode = ar5008_hw_set_rfmode;
+ priv_ops->mark_phy_inactive = ar5008_hw_mark_phy_inactive;
+ priv_ops->set_delta_slope = ar5008_hw_set_delta_slope;
+ priv_ops->rfbus_req = ar5008_hw_rfbus_req;
+ priv_ops->rfbus_done = ar5008_hw_rfbus_done;
+ priv_ops->enable_rfkill = ar5008_hw_enable_rfkill;
+ priv_ops->restore_chainmask = ar5008_restore_chainmask;
+ priv_ops->set_diversity = ar5008_set_diversity;
+}