linux/drivers/net/wireless/ath/ath9k/ar9003_rtt.c

/*
 * 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 "hw-ops.h"
#include "ar9003_phy.h"
#include "ar9003_rtt.h"

#define RTT_RESTORE_TIMEOUT …
#define RTT_ACCESS_TIMEOUT …
#define RTT_BAD_VALUE …

/*
 * 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)
{ … }

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)
{ … }

static void ar9003_hw_rtt_load_hist_entry(struct ath_hw *ah, u8 chain,
					  u32 index, u32 data28)
{ … }

void ar9003_hw_rtt_load_hist(struct ath_hw *ah)
{ … }

static void ar9003_hw_patch_rtt(struct ath_hw *ah, int index, int chain)
{ … }

static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index)
{ … }

void ar9003_hw_rtt_fill_hist(struct ath_hw *ah)
{ … }

void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
{ … }

bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
{ … }