ar5008_phy.o \
ar9002_calib.o \
ar9003_calib.o \
+ ar9003_rtt.o \
calib.o \
eeprom.o \
eeprom_def.o \
#include "hw.h"
#include "hw-ops.h"
#include "ar9003_phy.h"
+#include "ar9003_rtt.h"
#define MAX_MEASUREMENT MAX_IQCAL_MEASUREMENT
#define MAX_MAG_DELTA 11
AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1);
}
+static bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
+{
+ struct ath9k_rtt_hist *hist;
+ u32 *table;
+ int i;
+ bool restore;
+
+ if (!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT) || !ah->caldata)
+ return false;
+
+ hist = &ah->caldata->rtt_hist;
+ ar9003_hw_rtt_enable(ah);
+ ar9003_hw_rtt_set_mask(ah, 0x10);
+ for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ if (!(ah->rxchainmask & (1 << i)))
+ continue;
+ table = &hist->table[i][hist->num_readings][0];
+ ar9003_hw_rtt_load_hist(ah, i, table);
+ }
+ restore = ar9003_hw_rtt_force_restore(ah);
+ ar9003_hw_rtt_disable(ah);
+
+ return restore;
+}
+
static bool ar9003_hw_init_cal(struct ath_hw *ah,
struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_cal_data *caldata = ah->caldata;
bool txiqcal_done = false, txclcal_done = false;
- bool is_reusable = true;
+ bool is_reusable = true, status = true;
+ bool run_rtt_cal = false, run_agc_cal;
+ bool rtt = !!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT);
+ u32 agc_ctrl = 0, agc_supp_cals = AR_PHY_AGC_CONTROL_OFFSET_CAL |
+ AR_PHY_AGC_CONTROL_FLTR_CAL |
+ AR_PHY_AGC_CONTROL_PKDET_CAL;
int i, j;
u32 cl_idx[AR9300_MAX_CHAINS] = { AR_PHY_CL_TAB_0,
AR_PHY_CL_TAB_1,
AR_PHY_CL_TAB_2 };
+ if (rtt) {
+ if (!ar9003_hw_rtt_restore(ah, chan))
+ run_rtt_cal = true;
+
+ ath_dbg(common, ATH_DBG_CALIBRATE, "RTT restore %s\n",
+ run_rtt_cal ? "failed" : "succeed");
+ }
+ run_agc_cal = run_rtt_cal;
+
+ if (run_rtt_cal) {
+ ar9003_hw_rtt_enable(ah);
+ ar9003_hw_rtt_set_mask(ah, 0x00);
+ ar9003_hw_rtt_clear_hist(ah);
+ }
+
+ if (rtt && !run_rtt_cal) {
+ agc_ctrl = REG_READ(ah, AR_PHY_AGC_CONTROL);
+ agc_supp_cals &= agc_ctrl;
+ agc_ctrl &= ~(AR_PHY_AGC_CONTROL_OFFSET_CAL |
+ AR_PHY_AGC_CONTROL_FLTR_CAL |
+ AR_PHY_AGC_CONTROL_PKDET_CAL);
+ REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl);
+ }
+
if (ah->enabled_cals & TX_CL_CAL) {
if (caldata && caldata->done_txclcal_once)
REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL,
AR_PHY_CL_CAL_ENABLE);
- else
+ else {
REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL,
AR_PHY_CL_CAL_ENABLE);
+ run_agc_cal = true;
+ }
}
if (!(ah->enabled_cals & TX_IQ_CAL))
else
REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0,
AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL);
- txiqcal_done = true;
+ txiqcal_done = run_agc_cal = true;
goto skip_tx_iqcal;
- }
+ } else if (caldata && !caldata->done_txiqcal_once)
+ run_agc_cal = true;
+
txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
udelay(5);
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
skip_tx_iqcal:
- /* Calibrate the AGC */
- REG_WRITE(ah, AR_PHY_AGC_CONTROL,
- REG_READ(ah, AR_PHY_AGC_CONTROL) |
- AR_PHY_AGC_CONTROL_CAL);
-
- /* Poll for offset calibration complete */
- if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL,
- 0, AH_WAIT_TIMEOUT)) {
+
+ if (run_agc_cal) {
+ /* Calibrate the AGC */
+ REG_WRITE(ah, AR_PHY_AGC_CONTROL,
+ REG_READ(ah, AR_PHY_AGC_CONTROL) |
+ AR_PHY_AGC_CONTROL_CAL);
+
+ /* Poll for offset calibration complete */
+ status = ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL,
+ AR_PHY_AGC_CONTROL_CAL,
+ 0, AH_WAIT_TIMEOUT);
+ }
+ if (rtt && !run_rtt_cal) {
+ agc_ctrl |= agc_supp_cals;
+ REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl);
+ }
+
+ if (!status) {
+ if (run_rtt_cal)
+ ar9003_hw_rtt_disable(ah);
+
ath_dbg(common, ATH_DBG_CALIBRATE,
- "offset calibration failed to complete in 1ms; noisy environment?\n");
+ "offset calibration failed to complete in 1ms;"
+ "noisy environment?\n");
return false;
}
}
#undef CL_TAB_ENTRY
+ if (run_rtt_cal && caldata) {
+ struct ath9k_rtt_hist *hist = &caldata->rtt_hist;
+ if (is_reusable && (hist->num_readings < RTT_HIST_MAX)) {
+ u32 *table;
+
+ for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ if (!(ah->rxchainmask & (1 << i)))
+ continue;
+ table = &hist->table[i][hist->num_readings][0];
+ ar9003_hw_rtt_fill_hist(ah, i, table);
+ }
+ }
+
+ ar9003_hw_rtt_disable(ah);
+ }
+
ath9k_hw_loadnf(ah, chan);
ath9k_hw_start_nfcal(ah, true);
(AR_SREV_9485(ah) ? \
0x3d0 : 0x450) + ((_i) << 2))
#define AR_PHY_RTT_CTRL (AR_SM_BASE + 0x380)
-#define AR_PHY_RTT_TABLE_SW_INTF_B (AR_SM_BASE + 0x384)
-#define AR_PHY_RTT_TABLE_SW_INTF_1_B0 (AR_SM_BASE + 0x388)
#define AR_PHY_WATCHDOG_STATUS (AR_SM_BASE + 0x5c0)
#define AR_PHY_WATCHDOG_CTL_1 (AR_SM_BASE + 0x5c4)
#define AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT 0x01000000
#define AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_S 24
#define AR_PHY_CHANNEL_STATUS_RX_CLEAR 0x00000004
+#define AR_PHY_RTT_CTRL_ENA_RADIO_RETENTION 0x00000001
+#define AR_PHY_RTT_CTRL_ENA_RADIO_RETENTION_S 0
+#define AR_PHY_RTT_CTRL_RESTORE_MASK 0x0000007E
+#define AR_PHY_RTT_CTRL_RESTORE_MASK_S 1
+#define AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE 0x00000080
+#define AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE_S 7
+#define AR_PHY_RTT_SW_RTT_TABLE_ACCESS 0x00000001
+#define AR_PHY_RTT_SW_RTT_TABLE_ACCESS_S 0
+#define AR_PHY_RTT_SW_RTT_TABLE_WRITE 0x00000002
+#define AR_PHY_RTT_SW_RTT_TABLE_WRITE_S 1
+#define AR_PHY_RTT_SW_RTT_TABLE_ADDR 0x0000001C
+#define AR_PHY_RTT_SW_RTT_TABLE_ADDR_S 2
+#define AR_PHY_RTT_SW_RTT_TABLE_DATA 0xFFFFFFF0
+#define AR_PHY_RTT_SW_RTT_TABLE_DATA_S 4
#define AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL 0x80000000
#define AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL_S 31
#define AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT 0x01fc0000
#define AR_PHY_AIC_SRAM_ADDR_B1 (AR_SM1_BASE + 0x5f0)
#define AR_PHY_AIC_SRAM_DATA_B1 (AR_SM1_BASE + 0x5f4)
+#define AR_PHY_RTT_TABLE_SW_INTF_B(i) (0x384 + (i) ? \
+ AR_SM1_BASE : AR_SM_BASE)
+#define AR_PHY_RTT_TABLE_SW_INTF_1_B(i) (0x388 + (i) ? \
+ AR_SM1_BASE : AR_SM_BASE)
/*
* Channel 2 Register Map
*/
--- /dev/null
+/*
+ * Copyright (c) 2010-2011 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 "hw.h"
+#include "ar9003_phy.h"
+
+#define RTT_RESTORE_TIMEOUT 1000
+#define RTT_ACCESS_TIMEOUT 100
+#define RTT_BAD_VALUE 0x0bad0bad
+
+/*
+ * RTT (Radio Retention Table) hardware implementation information
+ *
+ * There is an internal table (i.e. the rtt) for each chain (or bank).
+ * Each table contains 6 entries and each entry is corresponding to
+ * a specific calibration parameter as depicted below.
+ * 0~2 - DC offset DAC calibration: loop, low, high (offsetI/Q_...)
+ * 3 - Filter cal (filterfc)
+ * 4 - RX gain settings
+ * 5 - Peak detector offset calibration (agc_caldac)
+ */
+
+void ar9003_hw_rtt_enable(struct ath_hw *ah)
+{
+ REG_WRITE(ah, AR_PHY_RTT_CTRL, 1);
+}
+
+void ar9003_hw_rtt_disable(struct ath_hw *ah)
+{
+ REG_WRITE(ah, AR_PHY_RTT_CTRL, 0);
+}
+
+void ar9003_hw_rtt_set_mask(struct ath_hw *ah, u32 rtt_mask)
+{
+ REG_RMW_FIELD(ah, AR_PHY_RTT_CTRL,
+ AR_PHY_RTT_CTRL_RESTORE_MASK, rtt_mask);
+}
+
+bool ar9003_hw_rtt_force_restore(struct ath_hw *ah)
+{
+ if (!ath9k_hw_wait(ah, AR_PHY_RTT_CTRL,
+ AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE,
+ 0, RTT_RESTORE_TIMEOUT))
+ return false;
+
+ REG_RMW_FIELD(ah, AR_PHY_RTT_CTRL,
+ AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE, 1);
+
+ if (!ath9k_hw_wait(ah, AR_PHY_RTT_CTRL,
+ AR_PHY_RTT_CTRL_FORCE_RADIO_RESTORE,
+ 0, RTT_RESTORE_TIMEOUT))
+ return false;
+
+ return true;
+}
+
+static void ar9003_hw_rtt_load_hist_entry(struct ath_hw *ah, u8 chain,
+ u32 index, u32 data28)
+{
+ u32 val;
+
+ val = SM(data28, AR_PHY_RTT_SW_RTT_TABLE_DATA);
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain), val);
+
+ val = SM(0, AR_PHY_RTT_SW_RTT_TABLE_ACCESS) |
+ SM(1, AR_PHY_RTT_SW_RTT_TABLE_WRITE) |
+ SM(index, AR_PHY_RTT_SW_RTT_TABLE_ADDR);
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+ udelay(1);
+
+ val |= SM(1, AR_PHY_RTT_SW_RTT_TABLE_ACCESS);
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+ udelay(1);
+
+ if (!ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+ AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+ RTT_ACCESS_TIMEOUT))
+ return;
+
+ val &= ~SM(1, AR_PHY_RTT_SW_RTT_TABLE_WRITE);
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+ udelay(1);
+
+ ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+ AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+ RTT_ACCESS_TIMEOUT);
+}
+
+void ar9003_hw_rtt_load_hist(struct ath_hw *ah, u8 chain, u32 *table)
+{
+ int i;
+
+ for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++)
+ ar9003_hw_rtt_load_hist_entry(ah, chain, i, table[i]);
+}
+
+static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index)
+{
+ u32 val;
+
+ val = SM(0, AR_PHY_RTT_SW_RTT_TABLE_ACCESS) |
+ SM(0, AR_PHY_RTT_SW_RTT_TABLE_WRITE) |
+ SM(index, AR_PHY_RTT_SW_RTT_TABLE_ADDR);
+
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+ udelay(1);
+
+ val |= SM(1, AR_PHY_RTT_SW_RTT_TABLE_ACCESS);
+ REG_WRITE(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain), val);
+ udelay(1);
+
+ if (!ath9k_hw_wait(ah, AR_PHY_RTT_TABLE_SW_INTF_B(chain),
+ AR_PHY_RTT_SW_RTT_TABLE_ACCESS, 0,
+ RTT_ACCESS_TIMEOUT))
+ return RTT_BAD_VALUE;
+
+ val = REG_READ(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain));
+
+ return val;
+}
+
+void ar9003_hw_rtt_fill_hist(struct ath_hw *ah, u8 chain, u32 *table)
+{
+ int i;
+
+ for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++)
+ table[i] = ar9003_hw_rtt_fill_hist_entry(ah, chain, i);
+}
+
+void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
+{
+ int i, j;
+
+ for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ if (!(ah->rxchainmask & (1 << i)))
+ continue;
+ for (j = 0; j < MAX_RTT_TABLE_ENTRY; j++)
+ ar9003_hw_rtt_load_hist_entry(ah, i, j, 0);
+ }
+}
--- /dev/null
+/*
+ * Copyright (c) 2010-2011 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.
+ */
+
+#ifndef AR9003_RTT_H
+#define AR9003_RTT_H
+
+void ar9003_hw_rtt_enable(struct ath_hw *ah);
+void ar9003_hw_rtt_disable(struct ath_hw *ah);
+void ar9003_hw_rtt_set_mask(struct ath_hw *ah, u32 rtt_mask);
+bool ar9003_hw_rtt_force_restore(struct ath_hw *ah);
+void ar9003_hw_rtt_load_hist(struct ath_hw *ah, u8 chain, u32 *table);
+void ar9003_hw_rtt_fill_hist(struct ath_hw *ah, u8 chain, u32 *table);
+void ar9003_hw_rtt_clear_hist(struct ath_hw *ah);
+
+#endif
if (caldata) {
caldata->done_txiqcal_once = false;
caldata->done_txclcal_once = false;
+ caldata->rtt_hist.num_readings = 0;
}
if (!ath9k_hw_init_cal(ah, chan))
return -EIO;
if (!AR_SREV_9330(ah))
ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
}
+ if (AR_SREV_9480(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_RTT;
+
return 0;
}
ATH9K_HW_CAP_2GHZ = BIT(13),
ATH9K_HW_CAP_5GHZ = BIT(14),
ATH9K_HW_CAP_APM = BIT(15),
+ ATH9K_HW_CAP_RTT = BIT(16),
};
struct ath9k_hw_capabilities {
CHANNEL_HT40PLUS | \
CHANNEL_HT40MINUS)
+#define MAX_RTT_TABLE_ENTRY 6
+#define RTT_HIST_MAX 3
+struct ath9k_rtt_hist {
+ u32 table[AR9300_MAX_CHAINS][RTT_HIST_MAX][MAX_RTT_TABLE_ENTRY];
+ u8 num_readings;
+};
+
#define MAX_IQCAL_MEASUREMENT 8
#define MAX_CL_TAB_ENTRY 16
int tx_corr_coeff[MAX_IQCAL_MEASUREMENT][AR9300_MAX_CHAINS];
u32 tx_clcal[AR9300_MAX_CHAINS][MAX_CL_TAB_ENTRY];
struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
+ struct ath9k_rtt_hist rtt_hist;
};
struct ath9k_channel {
#define AR_PHY_AGC_CONTROL_NO_UPDATE_NF 0x00020000 /* don't update noise floor automatically */
#define AR_PHY_AGC_CONTROL_EXT_NF_PWR_MEAS 0x00040000 /* extend noise floor power measurement */
#define AR_PHY_AGC_CONTROL_CLC_SUCCESS 0x00080000 /* carrier leak calibration done */
+#define AR_PHY_AGC_CONTROL_PKDET_CAL 0x00100000
#define AR_PHY_AGC_CONTROL_YCOK_MAX 0x000003c0
#define AR_PHY_AGC_CONTROL_YCOK_MAX_S 6
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