--- /dev/null
+/*
+ * Copyright (c) 2008-2011 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 <linux/io.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/bitops.h>
+#include <linux/etherdevice.h>
+#include <linux/gpio.h>
+#include <asm/unaligned.h>
+
+#include "hw.h"
+#include "hw-ops.h"
+#include "ar9003_mac.h"
+#include "ar9003_mci.h"
+#include "ar9003_phy.h"
+#include "ath9k.h"
+
+static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
+
+MODULE_AUTHOR("Atheros Communications");
+MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
+MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static void ath9k_hw_set_clockrate(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_channel *chan = ah->curchan;
+ unsigned int clockrate;
+
+ /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
+ if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
+ clockrate = 117;
+ else if (!chan) /* should really check for CCK instead */
+ clockrate = ATH9K_CLOCK_RATE_CCK;
+ else if (IS_CHAN_2GHZ(chan))
+ clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
+ else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
+ clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
+ else
+ clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
+
+ if (chan) {
+ if (IS_CHAN_HT40(chan))
+ clockrate *= 2;
+ if (IS_CHAN_HALF_RATE(chan))
+ clockrate /= 2;
+ if (IS_CHAN_QUARTER_RATE(chan))
+ clockrate /= 4;
+ }
+
+ common->clockrate = clockrate;
+}
+
+static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ return usecs * common->clockrate;
+}
+
+bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
+{
+ int i;
+
+ BUG_ON(timeout < AH_TIME_QUANTUM);
+
+ for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
+ if ((REG_READ(ah, reg) & mask) == val)
+ return true;
+
+ udelay(AH_TIME_QUANTUM);
+ }
+
+ ath_dbg(ath9k_hw_common(ah), ANY,
+ "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
+ timeout, reg, REG_READ(ah, reg), mask, val);
+
+ return false;
+}
+EXPORT_SYMBOL(ath9k_hw_wait);
+
+void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
+ int hw_delay)
+{
+ hw_delay /= 10;
+
+ if (IS_CHAN_HALF_RATE(chan))
+ hw_delay *= 2;
+ else if (IS_CHAN_QUARTER_RATE(chan))
+ hw_delay *= 4;
+
+ udelay(hw_delay + BASE_ACTIVATE_DELAY);
+}
+
+void ath9k_hw_write_array(struct ath_hw *ah, const struct ar5416IniArray *array,
+ int column, unsigned int *writecnt)
+{
+ int r;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+ for (r = 0; r < array->ia_rows; r++) {
+ REG_WRITE(ah, INI_RA(array, r, 0),
+ INI_RA(array, r, column));
+ DO_DELAY(*writecnt);
+ }
+ REGWRITE_BUFFER_FLUSH(ah);
+}
+
+void ath9k_hw_read_array(struct ath_hw *ah, u32 array[][2], int size)
+{
+ u32 *tmp_reg_list, *tmp_data;
+ int i;
+
+ tmp_reg_list = kmalloc(size * sizeof(u32), GFP_KERNEL);
+ if (!tmp_reg_list) {
+ dev_err(ah->dev, "%s: tmp_reg_list: alloc filed\n", __func__);
+ return;
+ }
+
+ tmp_data = kmalloc(size * sizeof(u32), GFP_KERNEL);
+ if (!tmp_data) {
+ dev_err(ah->dev, "%s tmp_data: alloc filed\n", __func__);
+ goto error_tmp_data;
+ }
+
+ for (i = 0; i < size; i++)
+ tmp_reg_list[i] = array[i][0];
+
+ REG_READ_MULTI(ah, tmp_reg_list, tmp_data, size);
+
+ for (i = 0; i < size; i++)
+ array[i][1] = tmp_data[i];
+
+ kfree(tmp_data);
+error_tmp_data:
+ kfree(tmp_reg_list);
+}
+
+u32 ath9k_hw_reverse_bits(u32 val, u32 n)
+{
+ u32 retval;
+ int i;
+
+ for (i = 0, retval = 0; i < n; i++) {
+ retval = (retval << 1) | (val & 1);
+ val >>= 1;
+ }
+ return retval;
+}
+
+u16 ath9k_hw_computetxtime(struct ath_hw *ah,
+ u8 phy, int kbps,
+ u32 frameLen, u16 rateix,
+ bool shortPreamble)
+{
+ u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
+
+ if (kbps == 0)
+ return 0;
+
+ switch (phy) {
+ case WLAN_RC_PHY_CCK:
+ phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
+ if (shortPreamble)
+ phyTime >>= 1;
+ numBits = frameLen << 3;
+ txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
+ break;
+ case WLAN_RC_PHY_OFDM:
+ if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
+ bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
+ numBits = OFDM_PLCP_BITS + (frameLen << 3);
+ numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
+ txTime = OFDM_SIFS_TIME_QUARTER
+ + OFDM_PREAMBLE_TIME_QUARTER
+ + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
+ } else if (ah->curchan &&
+ IS_CHAN_HALF_RATE(ah->curchan)) {
+ bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
+ numBits = OFDM_PLCP_BITS + (frameLen << 3);
+ numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
+ txTime = OFDM_SIFS_TIME_HALF +
+ OFDM_PREAMBLE_TIME_HALF
+ + (numSymbols * OFDM_SYMBOL_TIME_HALF);
+ } else {
+ bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
+ numBits = OFDM_PLCP_BITS + (frameLen << 3);
+ numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
+ txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
+ + (numSymbols * OFDM_SYMBOL_TIME);
+ }
+ break;
+ default:
+ ath_err(ath9k_hw_common(ah),
+ "Unknown phy %u (rate ix %u)\n", phy, rateix);
+ txTime = 0;
+ break;
+ }
+
+ return txTime;
+}
+EXPORT_SYMBOL(ath9k_hw_computetxtime);
+
+void ath9k_hw_get_channel_centers(struct ath_hw *ah,
+ struct ath9k_channel *chan,
+ struct chan_centers *centers)
+{
+ int8_t extoff;
+
+ if (!IS_CHAN_HT40(chan)) {
+ centers->ctl_center = centers->ext_center =
+ centers->synth_center = chan->channel;
+ return;
+ }
+
+ if (IS_CHAN_HT40PLUS(chan)) {
+ centers->synth_center =
+ chan->channel + HT40_CHANNEL_CENTER_SHIFT;
+ extoff = 1;
+ } else {
+ centers->synth_center =
+ chan->channel - HT40_CHANNEL_CENTER_SHIFT;
+ extoff = -1;
+ }
+
+ centers->ctl_center =
+ centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
+ /* 25 MHz spacing is supported by hw but not on upper layers */
+ centers->ext_center =
+ centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
+}
+
+/******************/
+/* Chip Revisions */
+/******************/
+
+static void ath9k_hw_read_revisions(struct ath_hw *ah)
+{
+ u32 val;
+
+ if (ah->get_mac_revision)
+ ah->hw_version.macRev = ah->get_mac_revision();
+
+ switch (ah->hw_version.devid) {
+ case AR5416_AR9100_DEVID:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9100;
+ break;
+ case AR9300_DEVID_AR9330:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9330;
+ if (!ah->get_mac_revision) {
+ val = REG_READ(ah, AR_SREV);
+ ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
+ }
+ return;
+ case AR9300_DEVID_AR9340:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9340;
+ return;
+ case AR9300_DEVID_QCA955X:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9550;
+ return;
+ case AR9300_DEVID_AR953X:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9531;
+ return;
+ case AR9300_DEVID_QCA956X:
+ ah->hw_version.macVersion = AR_SREV_VERSION_9561;
+ }
+
+ val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
+
+ if (val == 0xFF) {
+ val = REG_READ(ah, AR_SREV);
+ ah->hw_version.macVersion =
+ (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
+ ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
+ ah->is_pciexpress = true;
+ else
+ ah->is_pciexpress = (val &
+ AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
+ } else {
+ if (!AR_SREV_9100(ah))
+ ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
+
+ ah->hw_version.macRev = val & AR_SREV_REVISION;
+
+ if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
+ ah->is_pciexpress = true;
+ }
+}
+
+/************************************/
+/* HW Attach, Detach, Init Routines */
+/************************************/
+
+static void ath9k_hw_disablepcie(struct ath_hw *ah)
+{
+ if (!AR_SREV_5416(ah))
+ return;
+
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
+ REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
+
+ REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
+}
+
+/* This should work for all families including legacy */
+static bool ath9k_hw_chip_test(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 regAddr[2] = { AR_STA_ID0 };
+ u32 regHold[2];
+ static const u32 patternData[4] = {
+ 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
+ };
+ int i, j, loop_max;
+
+ if (!AR_SREV_9300_20_OR_LATER(ah)) {
+ loop_max = 2;
+ regAddr[1] = AR_PHY_BASE + (8 << 2);
+ } else
+ loop_max = 1;
+
+ for (i = 0; i < loop_max; i++) {
+ u32 addr = regAddr[i];
+ u32 wrData, rdData;
+
+ regHold[i] = REG_READ(ah, addr);
+ for (j = 0; j < 0x100; j++) {
+ wrData = (j << 16) | j;
+ REG_WRITE(ah, addr, wrData);
+ rdData = REG_READ(ah, addr);
+ if (rdData != wrData) {
+ ath_err(common,
+ "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
+ addr, wrData, rdData);
+ return false;
+ }
+ }
+ for (j = 0; j < 4; j++) {
+ wrData = patternData[j];
+ REG_WRITE(ah, addr, wrData);
+ rdData = REG_READ(ah, addr);
+ if (wrData != rdData) {
+ ath_err(common,
+ "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
+ addr, wrData, rdData);
+ return false;
+ }
+ }
+ REG_WRITE(ah, regAddr[i], regHold[i]);
+ }
+ udelay(100);
+
+ return true;
+}
+
+static void ath9k_hw_init_config(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ ah->config.dma_beacon_response_time = 1;
+ ah->config.sw_beacon_response_time = 6;
+ ah->config.cwm_ignore_extcca = 0;
+ ah->config.analog_shiftreg = 1;
+
+ ah->config.rx_intr_mitigation = true;
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ah->config.rimt_last = 500;
+ ah->config.rimt_first = 2000;
+ } else {
+ ah->config.rimt_last = 250;
+ ah->config.rimt_first = 700;
+ }
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
+ ah->config.pll_pwrsave = 7;
+
+ /*
+ * We need this for PCI devices only (Cardbus, PCI, miniPCI)
+ * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
+ * This means we use it for all AR5416 devices, and the few
+ * minor PCI AR9280 devices out there.
+ *
+ * Serialization is required because these devices do not handle
+ * well the case of two concurrent reads/writes due to the latency
+ * involved. During one read/write another read/write can be issued
+ * on another CPU while the previous read/write may still be working
+ * on our hardware, if we hit this case the hardware poops in a loop.
+ * We prevent this by serializing reads and writes.
+ *
+ * This issue is not present on PCI-Express devices or pre-AR5416
+ * devices (legacy, 802.11abg).
+ */
+ if (num_possible_cpus() > 1)
+ ah->config.serialize_regmode = SER_REG_MODE_AUTO;
+
+ if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
+ if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
+ ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
+ !ah->is_pciexpress)) {
+ ah->config.serialize_regmode = SER_REG_MODE_ON;
+ } else {
+ ah->config.serialize_regmode = SER_REG_MODE_OFF;
+ }
+ }
+
+ ath_dbg(common, RESET, "serialize_regmode is %d\n",
+ ah->config.serialize_regmode);
+
+ if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
+ ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
+ else
+ ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
+}
+
+static void ath9k_hw_init_defaults(struct ath_hw *ah)
+{
+ struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
+
+ regulatory->country_code = CTRY_DEFAULT;
+ regulatory->power_limit = MAX_RATE_POWER;
+
+ ah->hw_version.magic = AR5416_MAGIC;
+ ah->hw_version.subvendorid = 0;
+
+ ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE |
+ AR_STA_ID1_MCAST_KSRCH;
+ if (AR_SREV_9100(ah))
+ ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
+
+ ah->slottime = ATH9K_SLOT_TIME_9;
+ ah->globaltxtimeout = (u32) -1;
+ ah->power_mode = ATH9K_PM_UNDEFINED;
+ ah->htc_reset_init = true;
+
+ ah->tpc_enabled = false;
+
+ ah->ani_function = ATH9K_ANI_ALL;
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
+
+ if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
+ ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
+ else
+ ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
+}
+
+static int ath9k_hw_init_macaddr(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 sum;
+ int i;
+ u16 eeval;
+ static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
+
+ sum = 0;
+ for (i = 0; i < 3; i++) {
+ eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
+ sum += eeval;
+ common->macaddr[2 * i] = eeval >> 8;
+ common->macaddr[2 * i + 1] = eeval & 0xff;
+ }
+ if (!is_valid_ether_addr(common->macaddr)) {
+ ath_err(common,
+ "eeprom contains invalid mac address: %pM\n",
+ common->macaddr);
+
+ random_ether_addr(common->macaddr);
+ ath_err(common,
+ "random mac address will be used: %pM\n",
+ common->macaddr);
+ }
+
+ return 0;
+}
+
+static int ath9k_hw_post_init(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int ecode;
+
+ if (common->bus_ops->ath_bus_type != ATH_USB) {
+ if (!ath9k_hw_chip_test(ah))
+ return -ENODEV;
+ }
+
+ if (!AR_SREV_9300_20_OR_LATER(ah)) {
+ ecode = ar9002_hw_rf_claim(ah);
+ if (ecode != 0)
+ return ecode;
+ }
+
+ ecode = ath9k_hw_eeprom_init(ah);
+ if (ecode != 0)
+ return ecode;
+
+ ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
+ ah->eep_ops->get_eeprom_ver(ah),
+ ah->eep_ops->get_eeprom_rev(ah));
+
+ ath9k_hw_ani_init(ah);
+
+ /*
+ * EEPROM needs to be initialized before we do this.
+ * This is required for regulatory compliance.
+ */
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
+ if ((regdmn & 0xF0) == CTL_FCC) {
+ ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_2GHZ;
+ ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_5GHZ;
+ }
+ }
+
+ return 0;
+}
+
+static int ath9k_hw_attach_ops(struct ath_hw *ah)
+{
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ return ar9002_hw_attach_ops(ah);
+
+ ar9003_hw_attach_ops(ah);
+ return 0;
+}
+
+/* Called for all hardware families */
+static int __ath9k_hw_init(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int r = 0;
+
+ ath9k_hw_read_revisions(ah);
+
+ switch (ah->hw_version.macVersion) {
+ case AR_SREV_VERSION_5416_PCI:
+ case AR_SREV_VERSION_5416_PCIE:
+ case AR_SREV_VERSION_9160:
+ case AR_SREV_VERSION_9100:
+ case AR_SREV_VERSION_9280:
+ case AR_SREV_VERSION_9285:
+ case AR_SREV_VERSION_9287:
+ case AR_SREV_VERSION_9271:
+ case AR_SREV_VERSION_9300:
+ case AR_SREV_VERSION_9330:
+ case AR_SREV_VERSION_9485:
+ case AR_SREV_VERSION_9340:
+ case AR_SREV_VERSION_9462:
+ case AR_SREV_VERSION_9550:
+ case AR_SREV_VERSION_9565:
+ case AR_SREV_VERSION_9531:
+ case AR_SREV_VERSION_9561:
+ break;
+ default:
+ ath_err(common,
+ "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
+ ah->hw_version.macVersion, ah->hw_version.macRev);
+ return -EOPNOTSUPP;
+ }
+
+ /*
+ * Read back AR_WA into a permanent copy and set bits 14 and 17.
+ * We need to do this to avoid RMW of this register. We cannot
+ * read the reg when chip is asleep.
+ */
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ah->WARegVal = REG_READ(ah, AR_WA);
+ ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
+ AR_WA_ASPM_TIMER_BASED_DISABLE);
+ }
+
+ if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
+ ath_err(common, "Couldn't reset chip\n");
+ return -EIO;
+ }
+
+ if (AR_SREV_9565(ah)) {
+ ah->WARegVal |= AR_WA_BIT22;
+ REG_WRITE(ah, AR_WA, ah->WARegVal);
+ }
+
+ ath9k_hw_init_defaults(ah);
+ ath9k_hw_init_config(ah);
+
+ r = ath9k_hw_attach_ops(ah);
+ if (r)
+ return r;
+
+ if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
+ ath_err(common, "Couldn't wakeup chip\n");
+ return -EIO;
+ }
+
+ if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
+ AR_SREV_9330(ah) || AR_SREV_9550(ah))
+ ah->is_pciexpress = false;
+
+ ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
+ ath9k_hw_init_cal_settings(ah);
+
+ if (!ah->is_pciexpress)
+ ath9k_hw_disablepcie(ah);
+
+ r = ath9k_hw_post_init(ah);
+ if (r)
+ return r;
+
+ ath9k_hw_init_mode_gain_regs(ah);
+ r = ath9k_hw_fill_cap_info(ah);
+ if (r)
+ return r;
+
+ r = ath9k_hw_init_macaddr(ah);
+ if (r) {
+ ath_err(common, "Failed to initialize MAC address\n");
+ return r;
+ }
+
+ ath9k_hw_init_hang_checks(ah);
+
+ common->state = ATH_HW_INITIALIZED;
+
+ return 0;
+}
+
+int ath9k_hw_init(struct ath_hw *ah)
+{
+ int ret;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
+ switch (ah->hw_version.devid) {
+ case AR5416_DEVID_PCI:
+ case AR5416_DEVID_PCIE:
+ case AR5416_AR9100_DEVID:
+ case AR9160_DEVID_PCI:
+ case AR9280_DEVID_PCI:
+ case AR9280_DEVID_PCIE:
+ case AR9285_DEVID_PCIE:
+ case AR9287_DEVID_PCI:
+ case AR9287_DEVID_PCIE:
+ case AR2427_DEVID_PCIE:
+ case AR9300_DEVID_PCIE:
+ case AR9300_DEVID_AR9485_PCIE:
+ case AR9300_DEVID_AR9330:
+ case AR9300_DEVID_AR9340:
+ case AR9300_DEVID_QCA955X:
+ case AR9300_DEVID_AR9580:
+ case AR9300_DEVID_AR9462:
+ case AR9485_DEVID_AR1111:
+ case AR9300_DEVID_AR9565:
+ case AR9300_DEVID_AR953X:
+ case AR9300_DEVID_QCA956X:
+ break;
+ default:
+ if (common->bus_ops->ath_bus_type == ATH_USB)
+ break;
+ ath_err(common, "Hardware device ID 0x%04x not supported\n",
+ ah->hw_version.devid);
+ return -EOPNOTSUPP;
+ }
+
+ ret = __ath9k_hw_init(ah);
+ if (ret) {
+ ath_err(common,
+ "Unable to initialize hardware; initialization status: %d\n",
+ ret);
+ return ret;
+ }
+
+ ath_dynack_init(ah);
+
+ return 0;
+}
+EXPORT_SYMBOL(ath9k_hw_init);
+
+static void ath9k_hw_init_qos(struct ath_hw *ah)
+{
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
+ REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
+
+ REG_WRITE(ah, AR_QOS_NO_ACK,
+ SM(2, AR_QOS_NO_ACK_TWO_BIT) |
+ SM(5, AR_QOS_NO_ACK_BIT_OFF) |
+ SM(0, AR_QOS_NO_ACK_BYTE_OFF));
+
+ REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
+ REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
+ REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
+ REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
+ REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+}
+
+u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int i = 0;
+
+ REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
+ udelay(100);
+ REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
+
+ while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
+
+ udelay(100);
+
+ if (WARN_ON_ONCE(i >= 100)) {
+ ath_err(common, "PLL4 meaurement not done\n");
+ break;
+ }
+
+ i++;
+ }
+
+ return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
+}
+EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
+
+static void ath9k_hw_init_pll(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ u32 pll;
+
+ pll = ath9k_hw_compute_pll_control(ah, chan);
+
+ if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
+ /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_DPLL2_KD, 0x40);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_DPLL2_KI, 0x4);
+
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+ AR_CH0_BB_DPLL1_REFDIV, 0x5);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+ AR_CH0_BB_DPLL1_NINI, 0x58);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+ AR_CH0_BB_DPLL1_NFRAC, 0x0);
+
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_BB_DPLL2_OUTDIV, 0x1);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
+
+ /* program BB PLL phase_shift to 0x6 */
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
+ AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
+
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+ AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
+ udelay(1000);
+ } else if (AR_SREV_9330(ah)) {
+ u32 ddr_dpll2, pll_control2, kd;
+
+ if (ah->is_clk_25mhz) {
+ ddr_dpll2 = 0x18e82f01;
+ pll_control2 = 0xe04a3d;
+ kd = 0x1d;
+ } else {
+ ddr_dpll2 = 0x19e82f01;
+ pll_control2 = 0x886666;
+ kd = 0x3d;
+ }
+
+ /* program DDR PLL ki and kd value */
+ REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
+
+ /* program DDR PLL phase_shift */
+ REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
+ AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
+
+ REG_WRITE(ah, AR_RTC_PLL_CONTROL,
+ pll | AR_RTC_9300_PLL_BYPASS);
+ udelay(1000);
+
+ /* program refdiv, nint, frac to RTC register */
+ REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
+
+ /* program BB PLL kd and ki value */
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
+
+ /* program BB PLL phase_shift */
+ REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
+ AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
+ } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
+ AR_SREV_9561(ah)) {
+ u32 regval, pll2_divint, pll2_divfrac, refdiv;
+
+ REG_WRITE(ah, AR_RTC_PLL_CONTROL,
+ pll | AR_RTC_9300_SOC_PLL_BYPASS);
+ udelay(1000);
+
+ REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
+ udelay(100);
+
+ if (ah->is_clk_25mhz) {
+ if (AR_SREV_9531(ah) || AR_SREV_9561(ah)) {
+ pll2_divint = 0x1c;
+ pll2_divfrac = 0xa3d2;
+ refdiv = 1;
+ } else {
+ pll2_divint = 0x54;
+ pll2_divfrac = 0x1eb85;
+ refdiv = 3;
+ }
+ } else {
+ if (AR_SREV_9340(ah)) {
+ pll2_divint = 88;
+ pll2_divfrac = 0;
+ refdiv = 5;
+ } else {
+ pll2_divint = 0x11;
+ pll2_divfrac = (AR_SREV_9531(ah) ||
+ AR_SREV_9561(ah)) ?
+ 0x26665 : 0x26666;
+ refdiv = 1;
+ }
+ }
+
+ regval = REG_READ(ah, AR_PHY_PLL_MODE);
+ if (AR_SREV_9531(ah) || AR_SREV_9561(ah))
+ regval |= (0x1 << 22);
+ else
+ regval |= (0x1 << 16);
+ REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
+ udelay(100);
+
+ REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
+ (pll2_divint << 18) | pll2_divfrac);
+ udelay(100);
+
+ regval = REG_READ(ah, AR_PHY_PLL_MODE);
+ if (AR_SREV_9340(ah))
+ regval = (regval & 0x80071fff) |
+ (0x1 << 30) |
+ (0x1 << 13) |
+ (0x4 << 26) |
+ (0x18 << 19);
+ else if (AR_SREV_9531(ah) || AR_SREV_9561(ah)) {
+ regval = (regval & 0x01c00fff) |
+ (0x1 << 31) |
+ (0x2 << 29) |
+ (0xa << 25) |
+ (0x1 << 19);
+
+ if (AR_SREV_9531(ah))
+ regval |= (0x6 << 12);
+ } else
+ regval = (regval & 0x80071fff) |
+ (0x3 << 30) |
+ (0x1 << 13) |
+ (0x4 << 26) |
+ (0x60 << 19);
+ REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
+
+ if (AR_SREV_9531(ah) || AR_SREV_9561(ah))
+ REG_WRITE(ah, AR_PHY_PLL_MODE,
+ REG_READ(ah, AR_PHY_PLL_MODE) & 0xffbfffff);
+ else
+ REG_WRITE(ah, AR_PHY_PLL_MODE,
+ REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
+
+ udelay(1000);
+ }
+
+ if (AR_SREV_9565(ah))
+ pll |= 0x40000;
+ REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
+
+ if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
+ AR_SREV_9550(ah))
+ udelay(1000);
+
+ /* Switch the core clock for ar9271 to 117Mhz */
+ if (AR_SREV_9271(ah)) {
+ udelay(500);
+ REG_WRITE(ah, 0x50040, 0x304);
+ }
+
+ udelay(RTC_PLL_SETTLE_DELAY);
+
+ REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
+}
+
+static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
+ enum nl80211_iftype opmode)
+{
+ u32 sync_default = AR_INTR_SYNC_DEFAULT;
+ u32 imr_reg = AR_IMR_TXERR |
+ AR_IMR_TXURN |
+ AR_IMR_RXERR |
+ AR_IMR_RXORN |
+ AR_IMR_BCNMISC;
+
+ if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
+ AR_SREV_9561(ah))
+ sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ imr_reg |= AR_IMR_RXOK_HP;
+ if (ah->config.rx_intr_mitigation)
+ imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
+ else
+ imr_reg |= AR_IMR_RXOK_LP;
+
+ } else {
+ if (ah->config.rx_intr_mitigation)
+ imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
+ else
+ imr_reg |= AR_IMR_RXOK;
+ }
+
+ if (ah->config.tx_intr_mitigation)
+ imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
+ else
+ imr_reg |= AR_IMR_TXOK;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ REG_WRITE(ah, AR_IMR, imr_reg);
+ ah->imrs2_reg |= AR_IMR_S2_GTT;
+ REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
+
+ if (!AR_SREV_9100(ah)) {
+ REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
+ REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
+ }
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
+ REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
+ REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
+ REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
+ }
+}
+
+static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
+{
+ u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
+ val = min(val, (u32) 0xFFFF);
+ REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
+}
+
+void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
+{
+ u32 val = ath9k_hw_mac_to_clks(ah, us);
+ val = min(val, (u32) 0xFFFF);
+ REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
+}
+
+void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
+{
+ u32 val = ath9k_hw_mac_to_clks(ah, us);
+ val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
+ REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
+}
+
+void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
+{
+ u32 val = ath9k_hw_mac_to_clks(ah, us);
+ val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
+ REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
+}
+
+static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
+{
+ if (tu > 0xFFFF) {
+ ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
+ tu);
+ ah->globaltxtimeout = (u32) -1;
+ return false;
+ } else {
+ REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
+ ah->globaltxtimeout = tu;
+ return true;
+ }
+}
+
+void ath9k_hw_init_global_settings(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ const struct ath9k_channel *chan = ah->curchan;
+ int acktimeout, ctstimeout, ack_offset = 0;
+ int slottime;
+ int sifstime;
+ int rx_lat = 0, tx_lat = 0, eifs = 0;
+ u32 reg;
+
+ ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
+ ah->misc_mode);
+
+ if (!chan)
+ return;
+
+ if (ah->misc_mode != 0)
+ REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
+
+ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
+ rx_lat = 41;
+ else
+ rx_lat = 37;
+ tx_lat = 54;
+
+ if (IS_CHAN_5GHZ(chan))
+ sifstime = 16;
+ else
+ sifstime = 10;
+
+ if (IS_CHAN_HALF_RATE(chan)) {
+ eifs = 175;
+ rx_lat *= 2;
+ tx_lat *= 2;
+ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
+ tx_lat += 11;
+
+ sifstime = 32;
+ ack_offset = 16;
+ slottime = 13;
+ } else if (IS_CHAN_QUARTER_RATE(chan)) {
+ eifs = 340;
+ rx_lat = (rx_lat * 4) - 1;
+ tx_lat *= 4;
+ if (IS_CHAN_A_FAST_CLOCK(ah, chan))
+ tx_lat += 22;
+
+ sifstime = 64;
+ ack_offset = 32;
+ slottime = 21;
+ } else {
+ if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
+ eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
+ reg = AR_USEC_ASYNC_FIFO;
+ } else {
+ eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
+ common->clockrate;
+ reg = REG_READ(ah, AR_USEC);
+ }
+ rx_lat = MS(reg, AR_USEC_RX_LAT);
+ tx_lat = MS(reg, AR_USEC_TX_LAT);
+
+ slottime = ah->slottime;
+ }
+
+ /* As defined by IEEE 802.11-2007 17.3.8.6 */
+ slottime += 3 * ah->coverage_class;
+ acktimeout = slottime + sifstime + ack_offset;
+ ctstimeout = acktimeout;
+
+ /*
+ * Workaround for early ACK timeouts, add an offset to match the
+ * initval's 64us ack timeout value. Use 48us for the CTS timeout.
+ * This was initially only meant to work around an issue with delayed
+ * BA frames in some implementations, but it has been found to fix ACK
+ * timeout issues in other cases as well.
+ */
+ if (IS_CHAN_2GHZ(chan) &&
+ !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
+ acktimeout += 64 - sifstime - ah->slottime;
+ ctstimeout += 48 - sifstime - ah->slottime;
+ }
+
+ if (ah->dynack.enabled) {
+ acktimeout = ah->dynack.ackto;
+ ctstimeout = acktimeout;
+ slottime = (acktimeout - 3) / 2;
+ } else {
+ ah->dynack.ackto = acktimeout;
+ }
+
+ ath9k_hw_set_sifs_time(ah, sifstime);
+ ath9k_hw_setslottime(ah, slottime);
+ ath9k_hw_set_ack_timeout(ah, acktimeout);
+ ath9k_hw_set_cts_timeout(ah, ctstimeout);
+ if (ah->globaltxtimeout != (u32) -1)
+ ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
+
+ REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
+ REG_RMW(ah, AR_USEC,
+ (common->clockrate - 1) |
+ SM(rx_lat, AR_USEC_RX_LAT) |
+ SM(tx_lat, AR_USEC_TX_LAT),
+ AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
+
+}
+EXPORT_SYMBOL(ath9k_hw_init_global_settings);
+
+void ath9k_hw_deinit(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (common->state < ATH_HW_INITIALIZED)
+ return;
+
+ ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
+}
+EXPORT_SYMBOL(ath9k_hw_deinit);
+
+/*******/
+/* INI */
+/*******/
+
+u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
+{
+ u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
+
+ if (IS_CHAN_2GHZ(chan))
+ ctl |= CTL_11G;
+ else
+ ctl |= CTL_11A;
+
+ return ctl;
+}
+
+/****************************************/
+/* Reset and Channel Switching Routines */
+/****************************************/
+
+static inline void ath9k_hw_set_dma(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int txbuf_size;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ /*
+ * set AHB_MODE not to do cacheline prefetches
+ */
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
+
+ /*
+ * let mac dma reads be in 128 byte chunks
+ */
+ REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ /*
+ * Restore TX Trigger Level to its pre-reset value.
+ * The initial value depends on whether aggregation is enabled, and is
+ * adjusted whenever underruns are detected.
+ */
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ /*
+ * let mac dma writes be in 128 byte chunks
+ */
+ REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
+
+ /*
+ * Setup receive FIFO threshold to hold off TX activities
+ */
+ REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
+ REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
+
+ ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
+ ah->caps.rx_status_len);
+ }
+
+ /*
+ * reduce the number of usable entries in PCU TXBUF to avoid
+ * wrap around issues.
+ */
+ if (AR_SREV_9285(ah)) {
+ /* For AR9285 the number of Fifos are reduced to half.
+ * So set the usable tx buf size also to half to
+ * avoid data/delimiter underruns
+ */
+ txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE;
+ } else if (AR_SREV_9340_13_OR_LATER(ah)) {
+ /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */
+ txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE;
+ } else {
+ txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE;
+ }
+
+ if (!AR_SREV_9271(ah))
+ REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ ath9k_hw_reset_txstatus_ring(ah);
+}
+
+static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
+{
+ u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
+ u32 set = AR_STA_ID1_KSRCH_MODE;
+
+ ENABLE_REG_RMW_BUFFER(ah);
+ switch (opmode) {
+ case NL80211_IFTYPE_ADHOC:
+ if (!AR_SREV_9340_13(ah)) {
+ set |= AR_STA_ID1_ADHOC;
+ REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
+ break;
+ }
+ /* fall through */
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ set |= AR_STA_ID1_STA_AP;
+ /* fall through */
+ case NL80211_IFTYPE_STATION:
+ REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
+ break;
+ default:
+ if (!ah->is_monitoring)
+ set = 0;
+ break;
+ }
+ REG_RMW(ah, AR_STA_ID1, set, mask);
+ REG_RMW_BUFFER_FLUSH(ah);
+}
+
+void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
+ u32 *coef_mantissa, u32 *coef_exponent)
+{
+ u32 coef_exp, coef_man;
+
+ for (coef_exp = 31; coef_exp > 0; coef_exp--)
+ if ((coef_scaled >> coef_exp) & 0x1)
+ break;
+
+ coef_exp = 14 - (coef_exp - COEF_SCALE_S);
+
+ coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
+
+ *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
+ *coef_exponent = coef_exp - 16;
+}
+
+/* AR9330 WAR:
+ * call external reset function to reset WMAC if:
+ * - doing a cold reset
+ * - we have pending frames in the TX queues.
+ */
+static bool ath9k_hw_ar9330_reset_war(struct ath_hw *ah, int type)
+{
+ int i, npend = 0;
+
+ for (i = 0; i < AR_NUM_QCU; i++) {
+ npend = ath9k_hw_numtxpending(ah, i);
+ if (npend)
+ break;
+ }
+
+ if (ah->external_reset &&
+ (npend || type == ATH9K_RESET_COLD)) {
+ int reset_err = 0;
+
+ ath_dbg(ath9k_hw_common(ah), RESET,
+ "reset MAC via external reset\n");
+
+ reset_err = ah->external_reset();
+ if (reset_err) {
+ ath_err(ath9k_hw_common(ah),
+ "External reset failed, err=%d\n",
+ reset_err);
+ return false;
+ }
+
+ REG_WRITE(ah, AR_RTC_RESET, 1);
+ }
+
+ return true;
+}
+
+static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
+{
+ u32 rst_flags;
+ u32 tmpReg;
+
+ if (AR_SREV_9100(ah)) {
+ REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
+ AR_RTC_DERIVED_CLK_PERIOD, 1);
+ (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
+ }
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_WA, ah->WARegVal);
+ udelay(10);
+ }
+
+ REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
+ AR_RTC_FORCE_WAKE_ON_INT);
+
+ if (AR_SREV_9100(ah)) {
+ rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
+ AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
+ } else {
+ tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
+ if (AR_SREV_9340(ah))
+ tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
+ else
+ tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
+ AR_INTR_SYNC_RADM_CPL_TIMEOUT;
+
+ if (tmpReg) {
+ u32 val;
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
+
+ val = AR_RC_HOSTIF;
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ val |= AR_RC_AHB;
+ REG_WRITE(ah, AR_RC, val);
+
+ } else if (!AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_RC, AR_RC_AHB);
+
+ rst_flags = AR_RTC_RC_MAC_WARM;
+ if (type == ATH9K_RESET_COLD)
+ rst_flags |= AR_RTC_RC_MAC_COLD;
+ }
+
+ if (AR_SREV_9330(ah)) {
+ if (!ath9k_hw_ar9330_reset_war(ah, type))
+ return false;
+ }
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_check_gpm_offset(ah);
+
+ REG_WRITE(ah, AR_RTC_RC, rst_flags);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ udelay(50);
+ else if (AR_SREV_9100(ah))
+ mdelay(10);
+ else
+ udelay(100);
+
+ REG_WRITE(ah, AR_RTC_RC, 0);
+ if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
+ ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
+ return false;
+ }
+
+ if (!AR_SREV_9100(ah))
+ REG_WRITE(ah, AR_RC, 0);
+
+ if (AR_SREV_9100(ah))
+ udelay(50);
+
+ return true;
+}
+
+static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
+{
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_WA, ah->WARegVal);
+ udelay(10);
+ }
+
+ REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
+ AR_RTC_FORCE_WAKE_ON_INT);
+
+ if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_RC, AR_RC_AHB);
+
+ REG_WRITE(ah, AR_RTC_RESET, 0);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ udelay(2);
+
+ if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_RC, 0);
+
+ REG_WRITE(ah, AR_RTC_RESET, 1);
+
+ if (!ath9k_hw_wait(ah,
+ AR_RTC_STATUS,
+ AR_RTC_STATUS_M,
+ AR_RTC_STATUS_ON,
+ AH_WAIT_TIMEOUT)) {
+ ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
+ return false;
+ }
+
+ return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
+}
+
+static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
+{
+ bool ret = false;
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_WA, ah->WARegVal);
+ udelay(10);
+ }
+
+ REG_WRITE(ah, AR_RTC_FORCE_WAKE,
+ AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
+
+ if (!ah->reset_power_on)
+ type = ATH9K_RESET_POWER_ON;
+
+ switch (type) {
+ case ATH9K_RESET_POWER_ON:
+ ret = ath9k_hw_set_reset_power_on(ah);
+ if (ret)
+ ah->reset_power_on = true;
+ break;
+ case ATH9K_RESET_WARM:
+ case ATH9K_RESET_COLD:
+ ret = ath9k_hw_set_reset(ah, type);
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static bool ath9k_hw_chip_reset(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ int reset_type = ATH9K_RESET_WARM;
+
+ if (AR_SREV_9280(ah)) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
+ reset_type = ATH9K_RESET_POWER_ON;
+ else
+ reset_type = ATH9K_RESET_COLD;
+ } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
+ (REG_READ(ah, AR_CR) & AR_CR_RXE))
+ reset_type = ATH9K_RESET_COLD;
+
+ if (!ath9k_hw_set_reset_reg(ah, reset_type))
+ return false;
+
+ if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
+ return false;
+
+ ah->chip_fullsleep = false;
+
+ if (AR_SREV_9330(ah))
+ ar9003_hw_internal_regulator_apply(ah);
+ ath9k_hw_init_pll(ah, chan);
+
+ return true;
+}
+
+static bool ath9k_hw_channel_change(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+ bool band_switch = false, mode_diff = false;
+ u8 ini_reloaded = 0;
+ u32 qnum;
+ int r;
+
+ if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
+ u32 flags_diff = chan->channelFlags ^ ah->curchan->channelFlags;
+ band_switch = !!(flags_diff & CHANNEL_5GHZ);
+ mode_diff = !!(flags_diff & ~CHANNEL_HT);
+ }
+
+ for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
+ if (ath9k_hw_numtxpending(ah, qnum)) {
+ ath_dbg(common, QUEUE,
+ "Transmit frames pending on queue %d\n", qnum);
+ return false;
+ }
+ }
+
+ if (!ath9k_hw_rfbus_req(ah)) {
+ ath_err(common, "Could not kill baseband RX\n");
+ return false;
+ }
+
+ if (band_switch || mode_diff) {
+ ath9k_hw_mark_phy_inactive(ah);
+ udelay(5);
+
+ if (band_switch)
+ ath9k_hw_init_pll(ah, chan);
+
+ if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
+ ath_err(common, "Failed to do fast channel change\n");
+ return false;
+ }
+ }
+
+ ath9k_hw_set_channel_regs(ah, chan);
+
+ r = ath9k_hw_rf_set_freq(ah, chan);
+ if (r) {
+ ath_err(common, "Failed to set channel\n");
+ return false;
+ }
+ ath9k_hw_set_clockrate(ah);
+ ath9k_hw_apply_txpower(ah, chan, false);
+
+ ath9k_hw_set_delta_slope(ah, chan);
+ ath9k_hw_spur_mitigate_freq(ah, chan);
+
+ if (band_switch || ini_reloaded)
+ ah->eep_ops->set_board_values(ah, chan);
+
+ ath9k_hw_init_bb(ah, chan);
+ ath9k_hw_rfbus_done(ah);
+
+ if (band_switch || ini_reloaded) {
+ ah->ah_flags |= AH_FASTCC;
+ ath9k_hw_init_cal(ah, chan);
+ ah->ah_flags &= ~AH_FASTCC;
+ }
+
+ return true;
+}
+
+static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
+{
+ u32 gpio_mask = ah->gpio_mask;
+ int i;
+
+ for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
+ if (!(gpio_mask & 1))
+ continue;
+
+ ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
+ }
+}
+
+void ath9k_hw_check_nav(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 val;
+
+ val = REG_READ(ah, AR_NAV);
+ if (val != 0xdeadbeef && val > 0x7fff) {
+ ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
+ REG_WRITE(ah, AR_NAV, 0);
+ }
+}
+EXPORT_SYMBOL(ath9k_hw_check_nav);
+
+bool ath9k_hw_check_alive(struct ath_hw *ah)
+{
+ int count = 50;
+ u32 reg, last_val;
+
+ if (AR_SREV_9300(ah))
+ return !ath9k_hw_detect_mac_hang(ah);
+
+ if (AR_SREV_9285_12_OR_LATER(ah))
+ return true;
+
+ last_val = REG_READ(ah, AR_OBS_BUS_1);
+ do {
+ reg = REG_READ(ah, AR_OBS_BUS_1);
+ if (reg != last_val)
+ return true;
+
+ udelay(1);
+ last_val = reg;
+ if ((reg & 0x7E7FFFEF) == 0x00702400)
+ continue;
+
+ switch (reg & 0x7E000B00) {
+ case 0x1E000000:
+ case 0x52000B00:
+ case 0x18000B00:
+ continue;
+ default:
+ return true;
+ }
+ } while (count-- > 0);
+
+ return false;
+}
+EXPORT_SYMBOL(ath9k_hw_check_alive);
+
+static void ath9k_hw_init_mfp(struct ath_hw *ah)
+{
+ /* Setup MFP options for CCMP */
+ if (AR_SREV_9280_20_OR_LATER(ah)) {
+ /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
+ * frames when constructing CCMP AAD. */
+ REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
+ 0xc7ff);
+ if (AR_SREV_9271(ah) || AR_DEVID_7010(ah))
+ ah->sw_mgmt_crypto_tx = true;
+ else
+ ah->sw_mgmt_crypto_tx = false;
+ ah->sw_mgmt_crypto_rx = false;
+ } else if (AR_SREV_9160_10_OR_LATER(ah)) {
+ /* Disable hardware crypto for management frames */
+ REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
+ AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
+ REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
+ AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
+ ah->sw_mgmt_crypto_tx = true;
+ ah->sw_mgmt_crypto_rx = true;
+ } else {
+ ah->sw_mgmt_crypto_tx = true;
+ ah->sw_mgmt_crypto_rx = true;
+ }
+}
+
+static void ath9k_hw_reset_opmode(struct ath_hw *ah,
+ u32 macStaId1, u32 saveDefAntenna)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ REG_RMW(ah, AR_STA_ID1, macStaId1
+ | AR_STA_ID1_RTS_USE_DEF
+ | ah->sta_id1_defaults,
+ ~AR_STA_ID1_SADH_MASK);
+ ath_hw_setbssidmask(common);
+ REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
+ ath9k_hw_write_associd(ah);
+ REG_WRITE(ah, AR_ISR, ~0);
+ REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ ath9k_hw_set_operating_mode(ah, ah->opmode);
+}
+
+static void ath9k_hw_init_queues(struct ath_hw *ah)
+{
+ int i;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ for (i = 0; i < AR_NUM_DCU; i++)
+ REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ ah->intr_txqs = 0;
+ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
+ ath9k_hw_resettxqueue(ah, i);
+}
+
+/*
+ * For big endian systems turn on swapping for descriptors
+ */
+static void ath9k_hw_init_desc(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (AR_SREV_9100(ah)) {
+ u32 mask;
+ mask = REG_READ(ah, AR_CFG);
+ if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
+ ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
+ mask);
+ } else {
+ mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
+ REG_WRITE(ah, AR_CFG, mask);
+ ath_dbg(common, RESET, "Setting CFG 0x%x\n",
+ REG_READ(ah, AR_CFG));
+ }
+ } else {
+ if (common->bus_ops->ath_bus_type == ATH_USB) {
+ /* Configure AR9271 target WLAN */
+ if (AR_SREV_9271(ah))
+ REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
+ else
+ REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
+ }
+#ifdef __BIG_ENDIAN
+ else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
+ AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
+ AR_SREV_9561(ah))
+ REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
+ else
+ REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
+#endif
+ }
+}
+
+/*
+ * Fast channel change:
+ * (Change synthesizer based on channel freq without resetting chip)
+ */
+static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+ int ret;
+
+ if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
+ goto fail;
+
+ if (ah->chip_fullsleep)
+ goto fail;
+
+ if (!ah->curchan)
+ goto fail;
+
+ if (chan->channel == ah->curchan->channel)
+ goto fail;
+
+ if ((ah->curchan->channelFlags | chan->channelFlags) &
+ (CHANNEL_HALF | CHANNEL_QUARTER))
+ goto fail;
+
+ /*
+ * If cross-band fcc is not supoprted, bail out if channelFlags differ.
+ */
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
+ ((chan->channelFlags ^ ah->curchan->channelFlags) & ~CHANNEL_HT))
+ goto fail;
+
+ if (!ath9k_hw_check_alive(ah))
+ goto fail;
+
+ /*
+ * For AR9462, make sure that calibration data for
+ * re-using are present.
+ */
+ if (AR_SREV_9462(ah) && (ah->caldata &&
+ (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
+ !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
+ !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
+ goto fail;
+
+ ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
+ ah->curchan->channel, chan->channel);
+
+ ret = ath9k_hw_channel_change(ah, chan);
+ if (!ret)
+ goto fail;
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_2g5g_switch(ah, false);
+
+ ath9k_hw_loadnf(ah, ah->curchan);
+ ath9k_hw_start_nfcal(ah, true);
+
+ if (AR_SREV_9271(ah))
+ ar9002_hw_load_ani_reg(ah, chan);
+
+ return 0;
+fail:
+ return -EINVAL;
+}
+
+u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
+{
+ struct timespec ts;
+ s64 usec;
+
+ if (!cur) {
+ getrawmonotonic(&ts);
+ cur = &ts;
+ }
+
+ usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
+ usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
+
+ return (u32) usec;
+}
+EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
+
+int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
+ struct ath9k_hw_cal_data *caldata, bool fastcc)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u32 saveLedState;
+ u32 saveDefAntenna;
+ u32 macStaId1;
+ u64 tsf = 0;
+ s64 usec = 0;
+ int r;
+ bool start_mci_reset = false;
+ bool save_fullsleep = ah->chip_fullsleep;
+
+ if (ath9k_hw_mci_is_enabled(ah)) {
+ start_mci_reset = ar9003_mci_start_reset(ah, chan);
+ if (start_mci_reset)
+ return 0;
+ }
+
+ if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
+ return -EIO;
+
+ if (ah->curchan && !ah->chip_fullsleep)
+ ath9k_hw_getnf(ah, ah->curchan);
+
+ ah->caldata = caldata;
+ if (caldata && (chan->channel != caldata->channel ||
+ chan->channelFlags != caldata->channelFlags)) {
+ /* Operating channel changed, reset channel calibration data */
+ memset(caldata, 0, sizeof(*caldata));
+ ath9k_init_nfcal_hist_buffer(ah, chan);
+ } else if (caldata) {
+ clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
+ }
+ ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
+
+ if (fastcc) {
+ r = ath9k_hw_do_fastcc(ah, chan);
+ if (!r)
+ return r;
+ }
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_stop_bt(ah, save_fullsleep);
+
+ saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
+ if (saveDefAntenna == 0)
+ saveDefAntenna = 1;
+
+ macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
+
+ /* Save TSF before chip reset, a cold reset clears it */
+ tsf = ath9k_hw_gettsf64(ah);
+ usec = ktime_to_us(ktime_get_raw());
+
+ saveLedState = REG_READ(ah, AR_CFG_LED) &
+ (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
+ AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
+
+ ath9k_hw_mark_phy_inactive(ah);
+
+ ah->paprd_table_write_done = false;
+
+ /* Only required on the first reset */
+ if (AR_SREV_9271(ah) && ah->htc_reset_init) {
+ REG_WRITE(ah,
+ AR9271_RESET_POWER_DOWN_CONTROL,
+ AR9271_RADIO_RF_RST);
+ udelay(50);
+ }
+
+ if (!ath9k_hw_chip_reset(ah, chan)) {
+ ath_err(common, "Chip reset failed\n");
+ return -EINVAL;
+ }
+
+ /* Only required on the first reset */
+ if (AR_SREV_9271(ah) && ah->htc_reset_init) {
+ ah->htc_reset_init = false;
+ REG_WRITE(ah,
+ AR9271_RESET_POWER_DOWN_CONTROL,
+ AR9271_GATE_MAC_CTL);
+ udelay(50);
+ }
+
+ /* Restore TSF */
+ usec = ktime_to_us(ktime_get_raw()) - usec;
+ ath9k_hw_settsf64(ah, tsf + usec);
+
+ if (AR_SREV_9280_20_OR_LATER(ah))
+ REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
+
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ ar9002_hw_enable_async_fifo(ah);
+
+ r = ath9k_hw_process_ini(ah, chan);
+ if (r)
+ return r;
+
+ ath9k_hw_set_rfmode(ah, chan);
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
+
+ /*
+ * Some AR91xx SoC devices frequently fail to accept TSF writes
+ * right after the chip reset. When that happens, write a new
+ * value after the initvals have been applied, with an offset
+ * based on measured time difference
+ */
+ if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
+ tsf += 1500;
+ ath9k_hw_settsf64(ah, tsf);
+ }
+
+ ath9k_hw_init_mfp(ah);
+
+ ath9k_hw_set_delta_slope(ah, chan);
+ ath9k_hw_spur_mitigate_freq(ah, chan);
+ ah->eep_ops->set_board_values(ah, chan);
+
+ ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
+
+ r = ath9k_hw_rf_set_freq(ah, chan);
+ if (r)
+ return r;
+
+ ath9k_hw_set_clockrate(ah);
+
+ ath9k_hw_init_queues(ah);
+ ath9k_hw_init_interrupt_masks(ah, ah->opmode);
+ ath9k_hw_ani_cache_ini_regs(ah);
+ ath9k_hw_init_qos(ah);
+
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
+ ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
+
+ ath9k_hw_init_global_settings(ah);
+
+ if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
+ REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
+ AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
+ REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
+ AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
+ REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
+ AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
+ }
+
+ REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
+
+ ath9k_hw_set_dma(ah);
+
+ if (!ath9k_hw_mci_is_enabled(ah))
+ REG_WRITE(ah, AR_OBS, 8);
+
+ ENABLE_REG_RMW_BUFFER(ah);
+ if (ah->config.rx_intr_mitigation) {
+ REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, ah->config.rimt_last);
+ REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, ah->config.rimt_first);
+ }
+
+ if (ah->config.tx_intr_mitigation) {
+ REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
+ REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
+ }
+ REG_RMW_BUFFER_FLUSH(ah);
+
+ ath9k_hw_init_bb(ah, chan);
+
+ if (caldata) {
+ clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
+ clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
+ }
+ if (!ath9k_hw_init_cal(ah, chan))
+ return -EIO;
+
+ if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
+ return -EIO;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ ath9k_hw_restore_chainmask(ah);
+ REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ ath9k_hw_gen_timer_start_tsf2(ah);
+
+ ath9k_hw_init_desc(ah);
+
+ if (ath9k_hw_btcoex_is_enabled(ah))
+ ath9k_hw_btcoex_enable(ah);
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_check_bt(ah);
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ath9k_hw_loadnf(ah, chan);
+ ath9k_hw_start_nfcal(ah, true);
+ }
+
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ ar9003_hw_bb_watchdog_config(ah);
+
+ if (ah->config.hw_hang_checks & HW_PHYRESTART_CLC_WAR)
+ ar9003_hw_disable_phy_restart(ah);
+
+ ath9k_hw_apply_gpio_override(ah);
+
+ if (AR_SREV_9565(ah) && common->bt_ant_diversity)
+ REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
+
+ if (ah->hw->conf.radar_enabled) {
+ /* set HW specific DFS configuration */
+ ah->radar_conf.ext_channel = IS_CHAN_HT40(chan);
+ ath9k_hw_set_radar_params(ah);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(ath9k_hw_reset);
+
+/******************************/
+/* Power Management (Chipset) */
+/******************************/
+
+/*
+ * Notify Power Mgt is disabled in self-generated frames.
+ * If requested, force chip to sleep.
+ */
+static void ath9k_set_power_sleep(struct ath_hw *ah)
+{
+ REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+ REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
+ REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
+ REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
+ /* xxx Required for WLAN only case ? */
+ REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
+ udelay(100);
+ }
+
+ /*
+ * Clear the RTC force wake bit to allow the
+ * mac to go to sleep.
+ */
+ REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ udelay(100);
+
+ if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
+
+ /* Shutdown chip. Active low */
+ if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
+ REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
+ udelay(2);
+ }
+
+ /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
+}
+
+/*
+ * Notify Power Management is enabled in self-generating
+ * frames. If request, set power mode of chip to
+ * auto/normal. Duration in units of 128us (1/8 TU).
+ */
+static void ath9k_set_power_network_sleep(struct ath_hw *ah)
+{
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+
+ REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
+
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ /* Set WakeOnInterrupt bit; clear ForceWake bit */
+ REG_WRITE(ah, AR_RTC_FORCE_WAKE,
+ AR_RTC_FORCE_WAKE_ON_INT);
+ } else {
+
+ /* When chip goes into network sleep, it could be waken
+ * up by MCI_INT interrupt caused by BT's HW messages
+ * (LNA_xxx, CONT_xxx) which chould be in a very fast
+ * rate (~100us). This will cause chip to leave and
+ * re-enter network sleep mode frequently, which in
+ * consequence will have WLAN MCI HW to generate lots of
+ * SYS_WAKING and SYS_SLEEPING messages which will make
+ * BT CPU to busy to process.
+ */
+ if (ath9k_hw_mci_is_enabled(ah))
+ REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
+ AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
+ /*
+ * Clear the RTC force wake bit to allow the
+ * mac to go to sleep.
+ */
+ REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ udelay(30);
+ }
+
+ /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
+}
+
+static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
+{
+ u32 val;
+ int i;
+
+ /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_WA, ah->WARegVal);
+ udelay(10);
+ }
+
+ if ((REG_READ(ah, AR_RTC_STATUS) &
+ AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
+ if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
+ return false;
+ }
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ ath9k_hw_init_pll(ah, NULL);
+ }
+ if (AR_SREV_9100(ah))
+ REG_SET_BIT(ah, AR_RTC_RESET,
+ AR_RTC_RESET_EN);
+
+ REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
+ AR_RTC_FORCE_WAKE_EN);
+ if (AR_SREV_9100(ah))
+ mdelay(10);
+ else
+ udelay(50);
+
+ for (i = POWER_UP_TIME / 50; i > 0; i--) {
+ val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
+ if (val == AR_RTC_STATUS_ON)
+ break;
+ udelay(50);
+ REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
+ AR_RTC_FORCE_WAKE_EN);
+ }
+ if (i == 0) {
+ ath_err(ath9k_hw_common(ah),
+ "Failed to wakeup in %uus\n",
+ POWER_UP_TIME / 20);
+ return false;
+ }
+
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_set_power_awake(ah);
+
+ REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
+
+ return true;
+}
+
+bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int status = true;
+ static const char *modes[] = {
+ "AWAKE",
+ "FULL-SLEEP",
+ "NETWORK SLEEP",
+ "UNDEFINED"
+ };
+
+ if (ah->power_mode == mode)
+ return status;
+
+ ath_dbg(common, RESET, "%s -> %s\n",
+ modes[ah->power_mode], modes[mode]);
+
+ switch (mode) {
+ case ATH9K_PM_AWAKE:
+ status = ath9k_hw_set_power_awake(ah);
+ break;
+ case ATH9K_PM_FULL_SLEEP:
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_set_full_sleep(ah);
+
+ ath9k_set_power_sleep(ah);
+ ah->chip_fullsleep = true;
+ break;
+ case ATH9K_PM_NETWORK_SLEEP:
+ ath9k_set_power_network_sleep(ah);
+ break;
+ default:
+ ath_err(common, "Unknown power mode %u\n", mode);
+ return false;
+ }
+ ah->power_mode = mode;
+
+ /*
+ * XXX: If this warning never comes up after a while then
+ * simply keep the ATH_DBG_WARN_ON_ONCE() but make
+ * ath9k_hw_setpower() return type void.
+ */
+
+ if (!(ah->ah_flags & AH_UNPLUGGED))
+ ATH_DBG_WARN_ON_ONCE(!status);
+
+ return status;
+}
+EXPORT_SYMBOL(ath9k_hw_setpower);
+
+/*******************/
+/* Beacon Handling */
+/*******************/
+
+void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
+{
+ int flags = 0;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ switch (ah->opmode) {
+ case NL80211_IFTYPE_ADHOC:
+ REG_SET_BIT(ah, AR_TXCFG,
+ AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
+ REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
+ TU_TO_USEC(ah->config.dma_beacon_response_time));
+ REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
+ TU_TO_USEC(ah->config.sw_beacon_response_time));
+ flags |=
+ AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
+ break;
+ default:
+ ath_dbg(ath9k_hw_common(ah), BEACON,
+ "%s: unsupported opmode: %d\n", __func__, ah->opmode);
+ return;
+ break;
+ }
+
+ REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
+ REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
+ REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ REG_SET_BIT(ah, AR_TIMER_MODE, flags);
+}
+EXPORT_SYMBOL(ath9k_hw_beaconinit);
+
+void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
+ const struct ath9k_beacon_state *bs)
+{
+ u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ REG_WRITE(ah, AR_NEXT_TBTT_TIMER, bs->bs_nexttbtt);
+ REG_WRITE(ah, AR_BEACON_PERIOD, bs->bs_intval);
+ REG_WRITE(ah, AR_DMA_BEACON_PERIOD, bs->bs_intval);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ REG_RMW_FIELD(ah, AR_RSSI_THR,
+ AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
+
+ beaconintval = bs->bs_intval;
+
+ if (bs->bs_sleepduration > beaconintval)
+ beaconintval = bs->bs_sleepduration;
+
+ dtimperiod = bs->bs_dtimperiod;
+ if (bs->bs_sleepduration > dtimperiod)
+ dtimperiod = bs->bs_sleepduration;
+
+ if (beaconintval == dtimperiod)
+ nextTbtt = bs->bs_nextdtim;
+ else
+ nextTbtt = bs->bs_nexttbtt;
+
+ ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
+ ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
+ ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
+ ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ REG_WRITE(ah, AR_NEXT_DTIM, bs->bs_nextdtim - SLEEP_SLOP);
+ REG_WRITE(ah, AR_NEXT_TIM, nextTbtt - SLEEP_SLOP);
+
+ REG_WRITE(ah, AR_SLEEP1,
+ SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
+ | AR_SLEEP1_ASSUME_DTIM);
+
+ if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
+ beacontimeout = (BEACON_TIMEOUT_VAL << 3);
+ else
+ beacontimeout = MIN_BEACON_TIMEOUT_VAL;
+
+ REG_WRITE(ah, AR_SLEEP2,
+ SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
+
+ REG_WRITE(ah, AR_TIM_PERIOD, beaconintval);
+ REG_WRITE(ah, AR_DTIM_PERIOD, dtimperiod);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+
+ REG_SET_BIT(ah, AR_TIMER_MODE,
+ AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
+ AR_DTIM_TIMER_EN);
+
+ /* TSF Out of Range Threshold */
+ REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
+}
+EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
+
+/*******************/
+/* HW Capabilities */
+/*******************/
+
+static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
+{
+ eeprom_chainmask &= chip_chainmask;
+ if (eeprom_chainmask)
+ return eeprom_chainmask;
+ else
+ return chip_chainmask;
+}
+
+/**
+ * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
+ * @ah: the atheros hardware data structure
+ *
+ * We enable DFS support upstream on chipsets which have passed a series
+ * of tests. The testing requirements are going to be documented. Desired
+ * test requirements are documented at:
+ *
+ * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
+ *
+ * Once a new chipset gets properly tested an individual commit can be used
+ * to document the testing for DFS for that chipset.
+ */
+static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
+{
+
+ switch (ah->hw_version.macVersion) {
+ /* for temporary testing DFS with 9280 */
+ case AR_SREV_VERSION_9280:
+ /* AR9580 will likely be our first target to get testing on */
+ case AR_SREV_VERSION_9580:
+ return true;
+ default:
+ return false;
+ }
+}
+
+int ath9k_hw_fill_cap_info(struct ath_hw *ah)
+{
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+ struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ u16 eeval;
+ u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
+
+ eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
+ regulatory->current_rd = eeval;
+
+ if (ah->opmode != NL80211_IFTYPE_AP &&
+ ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
+ if (regulatory->current_rd == 0x64 ||
+ regulatory->current_rd == 0x65)
+ regulatory->current_rd += 5;
+ else if (regulatory->current_rd == 0x41)
+ regulatory->current_rd = 0x43;
+ ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
+ regulatory->current_rd);
+ }
+
+ eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
+
+ if (eeval & AR5416_OPFLAGS_11A) {
+ if (ah->disable_5ghz)
+ ath_warn(common, "disabling 5GHz band\n");
+ else
+ pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
+ }
+
+ if (eeval & AR5416_OPFLAGS_11G) {
+ if (ah->disable_2ghz)
+ ath_warn(common, "disabling 2GHz band\n");
+ else
+ pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
+ }
+
+ if ((pCap->hw_caps & (ATH9K_HW_CAP_2GHZ | ATH9K_HW_CAP_5GHZ)) == 0) {
+ ath_err(common, "both bands are disabled\n");
+ return -EINVAL;
+ }
+
+ if (AR_SREV_9485(ah) ||
+ AR_SREV_9285(ah) ||
+ AR_SREV_9330(ah) ||
+ AR_SREV_9565(ah))
+ pCap->chip_chainmask = 1;
+ else if (!AR_SREV_9280_20_OR_LATER(ah))
+ pCap->chip_chainmask = 7;
+ else if (!AR_SREV_9300_20_OR_LATER(ah) ||
+ AR_SREV_9340(ah) ||
+ AR_SREV_9462(ah) ||
+ AR_SREV_9531(ah))
+ pCap->chip_chainmask = 3;
+ else
+ pCap->chip_chainmask = 7;
+
+ pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
+ /*
+ * For AR9271 we will temporarilly uses the rx chainmax as read from
+ * the EEPROM.
+ */
+ if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
+ !(eeval & AR5416_OPFLAGS_11A) &&
+ !(AR_SREV_9271(ah)))
+ /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
+ pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
+ else if (AR_SREV_9100(ah))
+ pCap->rx_chainmask = 0x7;
+ else
+ /* Use rx_chainmask from EEPROM. */
+ pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
+
+ pCap->tx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->tx_chainmask);
+ pCap->rx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->rx_chainmask);
+ ah->txchainmask = pCap->tx_chainmask;
+ ah->rxchainmask = pCap->rx_chainmask;
+
+ ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
+
+ /* enable key search for every frame in an aggregate */
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
+
+ common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
+
+ if (ah->hw_version.devid != AR2427_DEVID_PCIE)
+ pCap->hw_caps |= ATH9K_HW_CAP_HT;
+ else
+ pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
+
+ if (AR_SREV_9271(ah))
+ pCap->num_gpio_pins = AR9271_NUM_GPIO;
+ else if (AR_DEVID_7010(ah))
+ pCap->num_gpio_pins = AR7010_NUM_GPIO;
+ else if (AR_SREV_9300_20_OR_LATER(ah))
+ pCap->num_gpio_pins = AR9300_NUM_GPIO;
+ else if (AR_SREV_9287_11_OR_LATER(ah))
+ pCap->num_gpio_pins = AR9287_NUM_GPIO;
+ else if (AR_SREV_9285_12_OR_LATER(ah))
+ pCap->num_gpio_pins = AR9285_NUM_GPIO;
+ else if (AR_SREV_9280_20_OR_LATER(ah))
+ pCap->num_gpio_pins = AR928X_NUM_GPIO;
+ else
+ pCap->num_gpio_pins = AR_NUM_GPIO;
+
+ if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
+ pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
+ else
+ pCap->rts_aggr_limit = (8 * 1024);
+
+#ifdef CONFIG_ATH9K_RFKILL
+ ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
+ if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
+ ah->rfkill_gpio =
+ MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
+ ah->rfkill_polarity =
+ MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
+
+ pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
+ }
+#endif
+ if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
+ else
+ pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
+
+ if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
+ pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
+ else
+ pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
+ if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) &&
+ !AR_SREV_9561(ah) && !AR_SREV_9565(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
+
+ pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
+ pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
+ pCap->rx_status_len = sizeof(struct ar9003_rxs);
+ pCap->tx_desc_len = sizeof(struct ar9003_txc);
+ pCap->txs_len = sizeof(struct ar9003_txs);
+ } else {
+ pCap->tx_desc_len = sizeof(struct ath_desc);
+ if (AR_SREV_9280_20(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
+ }
+
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
+
+ if (AR_SREV_9561(ah))
+ ah->ent_mode = 0x3BDA000;
+ else if (AR_SREV_9300_20_OR_LATER(ah))
+ ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
+
+ if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
+
+ if (AR_SREV_9285(ah)) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
+ ant_div_ctl1 =
+ ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+ if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
+ pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
+ ath_info(common, "Enable LNA combining\n");
+ }
+ }
+ }
+
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
+ pCap->hw_caps |= ATH9K_HW_CAP_APM;
+ }
+
+ if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
+ ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+ if ((ant_div_ctl1 >> 0x6) == 0x3) {
+ pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
+ ath_info(common, "Enable LNA combining\n");
+ }
+ }
+
+ if (ath9k_hw_dfs_tested(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_DFS;
+
+ tx_chainmask = pCap->tx_chainmask;
+ rx_chainmask = pCap->rx_chainmask;
+ while (tx_chainmask || rx_chainmask) {
+ if (tx_chainmask & BIT(0))
+ pCap->max_txchains++;
+ if (rx_chainmask & BIT(0))
+ pCap->max_rxchains++;
+
+ tx_chainmask >>= 1;
+ rx_chainmask >>= 1;
+ }
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+ if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
+ pCap->hw_caps |= ATH9K_HW_CAP_MCI;
+
+ if (AR_SREV_9462_20_OR_LATER(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_RTT;
+ }
+
+ if (AR_SREV_9300_20_OR_LATER(ah) &&
+ ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
+ pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
+
+#ifdef CONFIG_ATH9K_WOW
+ if (AR_SREV_9462_20_OR_LATER(ah) || AR_SREV_9565_11_OR_LATER(ah))
+ ah->wow.max_patterns = MAX_NUM_PATTERN;
+ else
+ ah->wow.max_patterns = MAX_NUM_PATTERN_LEGACY;
+#endif
+
+ return 0;
+}
+
+/****************************/
+/* GPIO / RFKILL / Antennae */
+/****************************/
+
+static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
+ u32 gpio, u32 type)
+{
+ int addr;
+ u32 gpio_shift, tmp;
+
+ if (gpio > 11)
+ addr = AR_GPIO_OUTPUT_MUX3;
+ else if (gpio > 5)
+ addr = AR_GPIO_OUTPUT_MUX2;
+ else
+ addr = AR_GPIO_OUTPUT_MUX1;
+
+ gpio_shift = (gpio % 6) * 5;
+
+ if (AR_SREV_9280_20_OR_LATER(ah)
+ || (addr != AR_GPIO_OUTPUT_MUX1)) {
+ REG_RMW(ah, addr, (type << gpio_shift),
+ (0x1f << gpio_shift));
+ } else {
+ tmp = REG_READ(ah, addr);
+ tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
+ tmp &= ~(0x1f << gpio_shift);
+ tmp |= (type << gpio_shift);
+ REG_WRITE(ah, addr, tmp);
+ }
+}
+
+void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
+{
+ u32 gpio_shift;
+
+ BUG_ON(gpio >= ah->caps.num_gpio_pins);
+
+ if (AR_DEVID_7010(ah)) {
+ gpio_shift = gpio;
+ REG_RMW(ah, AR7010_GPIO_OE,
+ (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
+ (AR7010_GPIO_OE_MASK << gpio_shift));
+ return;
+ }
+
+ gpio_shift = gpio << 1;
+ REG_RMW(ah,
+ AR_GPIO_OE_OUT,
+ (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
+ (AR_GPIO_OE_OUT_DRV << gpio_shift));
+}
+EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
+
+u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
+{
+#define MS_REG_READ(x, y) \
+ (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
+
+ if (gpio >= ah->caps.num_gpio_pins)
+ return 0xffffffff;
+
+ if (AR_DEVID_7010(ah)) {
+ u32 val;
+ val = REG_READ(ah, AR7010_GPIO_IN);
+ return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
+ } else if (AR_SREV_9300_20_OR_LATER(ah))
+ return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
+ AR_GPIO_BIT(gpio)) != 0;
+ else if (AR_SREV_9271(ah))
+ return MS_REG_READ(AR9271, gpio) != 0;
+ else if (AR_SREV_9287_11_OR_LATER(ah))
+ return MS_REG_READ(AR9287, gpio) != 0;
+ else if (AR_SREV_9285_12_OR_LATER(ah))
+ return MS_REG_READ(AR9285, gpio) != 0;
+ else if (AR_SREV_9280_20_OR_LATER(ah))
+ return MS_REG_READ(AR928X, gpio) != 0;
+ else
+ return MS_REG_READ(AR, gpio) != 0;
+}
+EXPORT_SYMBOL(ath9k_hw_gpio_get);
+
+void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
+ u32 ah_signal_type)
+{
+ u32 gpio_shift;
+
+ if (AR_DEVID_7010(ah)) {
+ gpio_shift = gpio;
+ REG_RMW(ah, AR7010_GPIO_OE,
+ (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
+ (AR7010_GPIO_OE_MASK << gpio_shift));
+ return;
+ }
+
+ ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
+ gpio_shift = 2 * gpio;
+ REG_RMW(ah,
+ AR_GPIO_OE_OUT,
+ (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
+ (AR_GPIO_OE_OUT_DRV << gpio_shift));
+}
+EXPORT_SYMBOL(ath9k_hw_cfg_output);
+
+void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
+{
+ if (AR_DEVID_7010(ah)) {
+ val = val ? 0 : 1;
+ REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
+ AR_GPIO_BIT(gpio));
+ return;
+ }
+
+ if (AR_SREV_9271(ah))
+ val = ~val;
+
+ if ((1 << gpio) & AR_GPIO_OE_OUT_MASK)
+ REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
+ AR_GPIO_BIT(gpio));
+ else
+ gpio_set_value(gpio, val & 1);
+}
+EXPORT_SYMBOL(ath9k_hw_set_gpio);
+
+void ath9k_hw_request_gpio(struct ath_hw *ah, u32 gpio, const char *label)
+{
+ if (gpio >= ah->caps.num_gpio_pins)
+ return;
+
+ gpio_request_one(gpio, GPIOF_DIR_OUT | GPIOF_INIT_LOW, label);
+}
+EXPORT_SYMBOL(ath9k_hw_request_gpio);
+
+void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
+{
+ REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
+}
+EXPORT_SYMBOL(ath9k_hw_setantenna);
+
+/*********************/
+/* General Operation */
+/*********************/
+
+u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
+{
+ u32 bits = REG_READ(ah, AR_RX_FILTER);
+ u32 phybits = REG_READ(ah, AR_PHY_ERR);
+
+ if (phybits & AR_PHY_ERR_RADAR)
+ bits |= ATH9K_RX_FILTER_PHYRADAR;
+ if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
+ bits |= ATH9K_RX_FILTER_PHYERR;
+
+ return bits;
+}
+EXPORT_SYMBOL(ath9k_hw_getrxfilter);
+
+void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
+{
+ u32 phybits;
+
+ ENABLE_REGWRITE_BUFFER(ah);
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
+ bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
+
+ REG_WRITE(ah, AR_RX_FILTER, bits);
+
+ phybits = 0;
+ if (bits & ATH9K_RX_FILTER_PHYRADAR)
+ phybits |= AR_PHY_ERR_RADAR;
+ if (bits & ATH9K_RX_FILTER_PHYERR)
+ phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
+ REG_WRITE(ah, AR_PHY_ERR, phybits);
+
+ if (phybits)
+ REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
+ else
+ REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
+
+ REGWRITE_BUFFER_FLUSH(ah);
+}
+EXPORT_SYMBOL(ath9k_hw_setrxfilter);
+
+bool ath9k_hw_phy_disable(struct ath_hw *ah)
+{
+ if (ath9k_hw_mci_is_enabled(ah))
+ ar9003_mci_bt_gain_ctrl(ah);
+
+ if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
+ return false;
+
+ ath9k_hw_init_pll(ah, NULL);
+ ah->htc_reset_init = true;
+ return true;
+}
+EXPORT_SYMBOL(ath9k_hw_phy_disable);
+
+bool ath9k_hw_disable(struct ath_hw *ah)
+{
+ if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
+ return false;
+
+ if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
+ return false;
+
+ ath9k_hw_init_pll(ah, NULL);
+ return true;
+}
+EXPORT_SYMBOL(ath9k_hw_disable);
+
+static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ enum eeprom_param gain_param;
+
+ if (IS_CHAN_2GHZ(chan))
+ gain_param = EEP_ANTENNA_GAIN_2G;
+ else
+ gain_param = EEP_ANTENNA_GAIN_5G;
+
+ return ah->eep_ops->get_eeprom(ah, gain_param);
+}
+
+void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
+ bool test)
+{
+ struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
+ struct ieee80211_channel *channel;
+ int chan_pwr, new_pwr, max_gain;
+ int ant_gain, ant_reduction = 0;
+
+ if (!chan)
+ return;
+
+ channel = chan->chan;
+ chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
+ new_pwr = min_t(int, chan_pwr, reg->power_limit);
+ max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
+
+ ant_gain = get_antenna_gain(ah, chan);
+ if (ant_gain > max_gain)
+ ant_reduction = ant_gain - max_gain;
+
+ ah->eep_ops->set_txpower(ah, chan,
+ ath9k_regd_get_ctl(reg, chan),
+ ant_reduction, new_pwr, test);
+}
+
+void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
+{
+ struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
+ struct ath9k_channel *chan = ah->curchan;
+ struct ieee80211_channel *channel = chan->chan;
+
+ reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
+ if (test)
+ channel->max_power = MAX_RATE_POWER / 2;
+
+ ath9k_hw_apply_txpower(ah, chan, test);
+
+ if (test)
+ channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
+}
+EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
+
+void ath9k_hw_setopmode(struct ath_hw *ah)
+{
+ ath9k_hw_set_operating_mode(ah, ah->opmode);
+}
+EXPORT_SYMBOL(ath9k_hw_setopmode);
+
+void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
+{
+ REG_WRITE(ah, AR_MCAST_FIL0, filter0);
+ REG_WRITE(ah, AR_MCAST_FIL1, filter1);
+}
+EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
+
+void ath9k_hw_write_associd(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
+ REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
+ ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
+}
+EXPORT_SYMBOL(ath9k_hw_write_associd);
+
+#define ATH9K_MAX_TSF_READ 10
+
+u64 ath9k_hw_gettsf64(struct ath_hw *ah)
+{
+ u32 tsf_lower, tsf_upper1, tsf_upper2;
+ int i;
+
+ tsf_upper1 = REG_READ(ah, AR_TSF_U32);
+ for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
+ tsf_lower = REG_READ(ah, AR_TSF_L32);
+ tsf_upper2 = REG_READ(ah, AR_TSF_U32);
+ if (tsf_upper2 == tsf_upper1)
+ break;
+ tsf_upper1 = tsf_upper2;
+ }
+
+ WARN_ON( i == ATH9K_MAX_TSF_READ );
+
+ return (((u64)tsf_upper1 << 32) | tsf_lower);
+}
+EXPORT_SYMBOL(ath9k_hw_gettsf64);
+
+void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
+{
+ REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
+ REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
+}
+EXPORT_SYMBOL(ath9k_hw_settsf64);
+
+void ath9k_hw_reset_tsf(struct ath_hw *ah)
+{
+ if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
+ AH_TSF_WRITE_TIMEOUT))
+ ath_dbg(ath9k_hw_common(ah), RESET,
+ "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
+
+ REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
+}
+EXPORT_SYMBOL(ath9k_hw_reset_tsf);
+
+void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
+{
+ if (set)
+ ah->misc_mode |= AR_PCU_TX_ADD_TSF;
+ else
+ ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
+}
+EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
+
+void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ u32 macmode;
+
+ if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
+ macmode = AR_2040_JOINED_RX_CLEAR;
+ else
+ macmode = 0;
+
+ REG_WRITE(ah, AR_2040_MODE, macmode);
+}
+
+/* HW Generic timers configuration */
+
+static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
+{
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
+ {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
+ {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
+ AR_NDP2_TIMER_MODE, 0x0002},
+ {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
+ AR_NDP2_TIMER_MODE, 0x0004},
+ {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
+ AR_NDP2_TIMER_MODE, 0x0008},
+ {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
+ AR_NDP2_TIMER_MODE, 0x0010},
+ {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
+ AR_NDP2_TIMER_MODE, 0x0020},
+ {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
+ AR_NDP2_TIMER_MODE, 0x0040},
+ {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
+ AR_NDP2_TIMER_MODE, 0x0080}
+};
+
+/* HW generic timer primitives */
+
+u32 ath9k_hw_gettsf32(struct ath_hw *ah)
+{
+ return REG_READ(ah, AR_TSF_L32);
+}
+EXPORT_SYMBOL(ath9k_hw_gettsf32);
+
+void ath9k_hw_gen_timer_start_tsf2(struct ath_hw *ah)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+
+ if (timer_table->tsf2_enabled) {
+ REG_SET_BIT(ah, AR_DIRECT_CONNECT, AR_DC_AP_STA_EN);
+ REG_SET_BIT(ah, AR_RESET_TSF, AR_RESET_TSF2_ONCE);
+ }
+}
+
+struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
+ void (*trigger)(void *),
+ void (*overflow)(void *),
+ void *arg,
+ u8 timer_index)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+ struct ath_gen_timer *timer;
+
+ if ((timer_index < AR_FIRST_NDP_TIMER) ||
+ (timer_index >= ATH_MAX_GEN_TIMER))
+ return NULL;
+
+ if ((timer_index > AR_FIRST_NDP_TIMER) &&
+ !AR_SREV_9300_20_OR_LATER(ah))
+ return NULL;
+
+ timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
+ if (timer == NULL)
+ return NULL;
+
+ /* allocate a hardware generic timer slot */
+ timer_table->timers[timer_index] = timer;
+ timer->index = timer_index;
+ timer->trigger = trigger;
+ timer->overflow = overflow;
+ timer->arg = arg;
+
+ if ((timer_index > AR_FIRST_NDP_TIMER) && !timer_table->tsf2_enabled) {
+ timer_table->tsf2_enabled = true;
+ ath9k_hw_gen_timer_start_tsf2(ah);
+ }
+
+ return timer;
+}
+EXPORT_SYMBOL(ath_gen_timer_alloc);
+
+void ath9k_hw_gen_timer_start(struct ath_hw *ah,
+ struct ath_gen_timer *timer,
+ u32 timer_next,
+ u32 timer_period)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+ u32 mask = 0;
+
+ timer_table->timer_mask |= BIT(timer->index);
+
+ /*
+ * Program generic timer registers
+ */
+ REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
+ timer_next);
+ REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
+ timer_period);
+ REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
+ gen_tmr_configuration[timer->index].mode_mask);
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+ /*
+ * Starting from AR9462, each generic timer can select which tsf
+ * to use. But we still follow the old rule, 0 - 7 use tsf and
+ * 8 - 15 use tsf2.
+ */
+ if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
+ REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
+ (1 << timer->index));
+ else
+ REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
+ (1 << timer->index));
+ }
+
+ if (timer->trigger)
+ mask |= SM(AR_GENTMR_BIT(timer->index),
+ AR_IMR_S5_GENTIMER_TRIG);
+ if (timer->overflow)
+ mask |= SM(AR_GENTMR_BIT(timer->index),
+ AR_IMR_S5_GENTIMER_THRESH);
+
+ REG_SET_BIT(ah, AR_IMR_S5, mask);
+
+ if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
+ ah->imask |= ATH9K_INT_GENTIMER;
+ ath9k_hw_set_interrupts(ah);
+ }
+}
+EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
+
+void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+
+ /* Clear generic timer enable bits. */
+ REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
+ gen_tmr_configuration[timer->index].mode_mask);
+
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+ /*
+ * Need to switch back to TSF if it was using TSF2.
+ */
+ if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
+ REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
+ (1 << timer->index));
+ }
+ }
+
+ /* Disable both trigger and thresh interrupt masks */
+ REG_CLR_BIT(ah, AR_IMR_S5,
+ (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
+ SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
+
+ timer_table->timer_mask &= ~BIT(timer->index);
+
+ if (timer_table->timer_mask == 0) {
+ ah->imask &= ~ATH9K_INT_GENTIMER;
+ ath9k_hw_set_interrupts(ah);
+ }
+}
+EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
+
+void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+
+ /* free the hardware generic timer slot */
+ timer_table->timers[timer->index] = NULL;
+ kfree(timer);
+}
+EXPORT_SYMBOL(ath_gen_timer_free);
+
+/*
+ * Generic Timer Interrupts handling
+ */
+void ath_gen_timer_isr(struct ath_hw *ah)
+{
+ struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
+ struct ath_gen_timer *timer;
+ unsigned long trigger_mask, thresh_mask;
+ unsigned int index;
+
+ /* get hardware generic timer interrupt status */
+ trigger_mask = ah->intr_gen_timer_trigger;
+ thresh_mask = ah->intr_gen_timer_thresh;
+ trigger_mask &= timer_table->timer_mask;
+ thresh_mask &= timer_table->timer_mask;
+
+ for_each_set_bit(index, &thresh_mask, ARRAY_SIZE(timer_table->timers)) {
+ timer = timer_table->timers[index];
+ if (!timer)
+ continue;
+ if (!timer->overflow)
+ continue;
+
+ trigger_mask &= ~BIT(index);
+ timer->overflow(timer->arg);
+ }
+
+ for_each_set_bit(index, &trigger_mask, ARRAY_SIZE(timer_table->timers)) {
+ timer = timer_table->timers[index];
+ if (!timer)
+ continue;
+ if (!timer->trigger)
+ continue;
+ timer->trigger(timer->arg);
+ }
+}
+EXPORT_SYMBOL(ath_gen_timer_isr);
+
+/********/
+/* HTC */
+/********/
+
+static struct {
+ u32 version;
+ const char * name;
+} ath_mac_bb_names[] = {
+ /* Devices with external radios */
+ { AR_SREV_VERSION_5416_PCI, "5416" },
+ { AR_SREV_VERSION_5416_PCIE, "5418" },
+ { AR_SREV_VERSION_9100, "9100" },
+ { AR_SREV_VERSION_9160, "9160" },
+ /* Single-chip solutions */
+ { AR_SREV_VERSION_9280, "9280" },
+ { AR_SREV_VERSION_9285, "9285" },
+ { AR_SREV_VERSION_9287, "9287" },
+ { AR_SREV_VERSION_9271, "9271" },
+ { AR_SREV_VERSION_9300, "9300" },
+ { AR_SREV_VERSION_9330, "9330" },
+ { AR_SREV_VERSION_9340, "9340" },
+ { AR_SREV_VERSION_9485, "9485" },
+ { AR_SREV_VERSION_9462, "9462" },
+ { AR_SREV_VERSION_9550, "9550" },
+ { AR_SREV_VERSION_9565, "9565" },
+ { AR_SREV_VERSION_9531, "9531" },
+};
+
+/* For devices with external radios */
+static struct {
+ u16 version;
+ const char * name;
+} ath_rf_names[] = {
+ { 0, "5133" },
+ { AR_RAD5133_SREV_MAJOR, "5133" },
+ { AR_RAD5122_SREV_MAJOR, "5122" },
+ { AR_RAD2133_SREV_MAJOR, "2133" },
+ { AR_RAD2122_SREV_MAJOR, "2122" }
+};
+
+/*
+ * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
+ */
+static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
+{
+ int i;
+
+ for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
+ if (ath_mac_bb_names[i].version == mac_bb_version) {
+ return ath_mac_bb_names[i].name;
+ }
+ }
+
+ return "????";
+}
+
+/*
+ * Return the RF name. "????" is returned if the RF is unknown.
+ * Used for devices with external radios.
+ */
+static const char *ath9k_hw_rf_name(u16 rf_version)
+{
+ int i;
+
+ for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
+ if (ath_rf_names[i].version == rf_version) {
+ return ath_rf_names[i].name;
+ }
+ }
+
+ return "????";
+}
+
+void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
+{
+ int used;
+
+ /* chipsets >= AR9280 are single-chip */
+ if (AR_SREV_9280_20_OR_LATER(ah)) {
+ used = scnprintf(hw_name, len,
+ "Atheros AR%s Rev:%x",
+ ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
+ ah->hw_version.macRev);
+ }
+ else {
+ used = scnprintf(hw_name, len,
+ "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
+ ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
+ ah->hw_version.macRev,
+ ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
+ & AR_RADIO_SREV_MAJOR)),
+ ah->hw_version.phyRev);
+ }
+
+ hw_name[used] = '\0';
+}
+EXPORT_SYMBOL(ath9k_hw_name);
Code Review / kvmfornfv.git / blobdiff