Linux-libre 4.5-gnu

1 files changed, 0 insertions, 440 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/stf.c b/drivers/net/wireless/brcm80211/brcmsmac/stf.c
deleted file mode 100644
index dd9162722..000000000
--- a/drivers/net/wireless/brcm80211/brcmsmac/stf.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * 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 <net/mac80211.h>
-
-#include "types.h"
-#include "d11.h"
-#include "rate.h"
-#include "phy/phy_hal.h"
-#include "channel.h"
-#include "main.h"
-#include "stf.h"
-#include "debug.h"
-
-#define MIN_SPATIAL_EXPANSION	0
-#define MAX_SPATIAL_EXPANSION	1
-
-#define BRCMS_STF_SS_STBC_RX(wlc) (BRCMS_ISNPHY(wlc->band) && \
-	NREV_GT(wlc->band->phyrev, 3) && NREV_LE(wlc->band->phyrev, 6))
-
-#define NSTS_1	1
-#define NSTS_2	2
-#define NSTS_3	3
-#define NSTS_4	4
-
-static const u8 txcore_default[5] = {
-	(0),			/* bitmap of the core enabled */
-	(0x01),			/* For Nsts = 1, enable core 1 */
-	(0x03),			/* For Nsts = 2, enable core 1 & 2 */
-	(0x07),			/* For Nsts = 3, enable core 1, 2 & 3 */
-	(0x0f)			/* For Nsts = 4, enable all cores */
-};
-
-static void brcms_c_stf_stbc_rx_ht_update(struct brcms_c_info *wlc, int val)
-{
-	/* MIMOPHYs rev3-6 cannot receive STBC with only one rx core active */
-	if (BRCMS_STF_SS_STBC_RX(wlc)) {
-		if ((wlc->stf->rxstreams == 1) && (val != HT_CAP_RX_STBC_NO))
-			return;
-	}
-
-	if (wlc->pub->up) {
-		brcms_c_update_beacon(wlc);
-		brcms_c_update_probe_resp(wlc, true);
-	}
-}
-
-/*
- * every WLC_TEMPSENSE_PERIOD seconds temperature check to decide whether to
- * turn on/off txchain.
- */
-void brcms_c_tempsense_upd(struct brcms_c_info *wlc)
-{
-	struct brcms_phy_pub *pi = wlc->band->pi;
-	uint active_chains, txchain;
-
-	/* Check if the chip is too hot. Disable one Tx chain, if it is */
-	/* high 4 bits are for Rx chain, low 4 bits are  for Tx chain */
-	active_chains = wlc_phy_stf_chain_active_get(pi);
-	txchain = active_chains & 0xf;
-
-	if (wlc->stf->txchain == wlc->stf->hw_txchain) {
-		if (txchain && (txchain < wlc->stf->hw_txchain))
-			/* turn off 1 tx chain */
-			brcms_c_stf_txchain_set(wlc, txchain, true);
-	} else if (wlc->stf->txchain < wlc->stf->hw_txchain) {
-		if (txchain == wlc->stf->hw_txchain)
-			/* turn back on txchain */
-			brcms_c_stf_txchain_set(wlc, txchain, true);
-	}
-}
-
-void
-brcms_c_stf_ss_algo_channel_get(struct brcms_c_info *wlc, u16 *ss_algo_channel,
-			    u16 chanspec)
-{
-	struct tx_power power;
-	u8 siso_mcs_id, cdd_mcs_id, stbc_mcs_id;
-
-	/* Clear previous settings */
-	*ss_algo_channel = 0;
-
-	if (!wlc->pub->up) {
-		*ss_algo_channel = (u16) -1;
-		return;
-	}
-
-	wlc_phy_txpower_get_current(wlc->band->pi, &power,
-				    CHSPEC_CHANNEL(chanspec));
-
-	siso_mcs_id = (CHSPEC_IS40(chanspec)) ?
-	    WL_TX_POWER_MCS40_SISO_FIRST : WL_TX_POWER_MCS20_SISO_FIRST;
-	cdd_mcs_id = (CHSPEC_IS40(chanspec)) ?
-	    WL_TX_POWER_MCS40_CDD_FIRST : WL_TX_POWER_MCS20_CDD_FIRST;
-	stbc_mcs_id = (CHSPEC_IS40(chanspec)) ?
-	    WL_TX_POWER_MCS40_STBC_FIRST : WL_TX_POWER_MCS20_STBC_FIRST;
-
-	/* criteria to choose stf mode */
-
-	/*
-	 * the "+3dbm (12 0.25db units)" is to account for the fact that with
-	 * CDD, tx occurs on both chains
-	 */
-	if (power.target[siso_mcs_id] > (power.target[cdd_mcs_id] + 12))
-		setbit(ss_algo_channel, PHY_TXC1_MODE_SISO);
-	else
-		setbit(ss_algo_channel, PHY_TXC1_MODE_CDD);
-
-	/*
-	 * STBC is ORed into to algo channel as STBC requires per-packet SCB
-	 * capability check so cannot be default mode of operation. One of
-	 * SISO, CDD have to be set
-	 */
-	if (power.target[siso_mcs_id] <= (power.target[stbc_mcs_id] + 12))
-		setbit(ss_algo_channel, PHY_TXC1_MODE_STBC);
-}
-
-static bool brcms_c_stf_stbc_tx_set(struct brcms_c_info *wlc, s32 int_val)
-{
-	if ((int_val != AUTO) && (int_val != OFF) && (int_val != ON))
-		return false;
-
-	if ((int_val == ON) && (wlc->stf->txstreams == 1))
-		return false;
-
-	wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = (s8) int_val;
-	wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = (s8) int_val;
-
-	return true;
-}
-
-bool brcms_c_stf_stbc_rx_set(struct brcms_c_info *wlc, s32 int_val)
-{
-	if ((int_val != HT_CAP_RX_STBC_NO)
-	    && (int_val != HT_CAP_RX_STBC_ONE_STREAM))
-		return false;
-
-	if (BRCMS_STF_SS_STBC_RX(wlc)) {
-		if ((int_val != HT_CAP_RX_STBC_NO)
-		    && (wlc->stf->rxstreams == 1))
-			return false;
-	}
-
-	brcms_c_stf_stbc_rx_ht_update(wlc, int_val);
-	return true;
-}
-
-static int brcms_c_stf_txcore_set(struct brcms_c_info *wlc, u8 Nsts,
-				  u8 core_mask)
-{
-	brcms_dbg_ht(wlc->hw->d11core, "wl%d: Nsts %d core_mask %x\n",
-		     wlc->pub->unit, Nsts, core_mask);
-
-	if (hweight8(core_mask) > wlc->stf->txstreams)
-		core_mask = 0;
-
-	if ((hweight8(core_mask) == wlc->stf->txstreams) &&
-	    ((core_mask & ~wlc->stf->txchain)
-	     || !(core_mask & wlc->stf->txchain)))
-		core_mask = wlc->stf->txchain;
-
-	wlc->stf->txcore[Nsts] = core_mask;
-	/* Nsts = 1..4, txcore index = 1..4 */
-	if (Nsts == 1) {
-		/* Needs to update beacon and ucode generated response
-		 * frames when 1 stream core map changed
-		 */
-		wlc->stf->phytxant = core_mask << PHY_TXC_ANT_SHIFT;
-		brcms_b_txant_set(wlc->hw, wlc->stf->phytxant);
-		if (wlc->clk) {
-			brcms_c_suspend_mac_and_wait(wlc);
-			brcms_c_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
-			brcms_c_enable_mac(wlc);
-		}
-	}
-
-	return 0;
-}
-
-static int brcms_c_stf_spatial_policy_set(struct brcms_c_info *wlc, int val)
-{
-	int i;
-	u8 core_mask = 0;
-
-	brcms_dbg_ht(wlc->hw->d11core, "wl%d: val %x\n", wlc->pub->unit,
-		     val);
-
-	wlc->stf->spatial_policy = (s8) val;
-	for (i = 1; i <= MAX_STREAMS_SUPPORTED; i++) {
-		core_mask = (val == MAX_SPATIAL_EXPANSION) ?
-		    wlc->stf->txchain : txcore_default[i];
-		brcms_c_stf_txcore_set(wlc, (u8) i, core_mask);
-	}
-	return 0;
-}
-
-/*
- * Centralized txant update function. call it whenever wlc->stf->txant and/or
- * wlc->stf->txchain change.
- *
- * Antennas are controlled by ucode indirectly, which drives PHY or GPIO to
- * achieve various tx/rx antenna selection schemes
- *
- * legacy phy, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7
- * means auto(last rx).
- * for NREV<3, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7
- * means last rx and do tx-antenna selection for SISO transmissions
- * for NREV=3, bit 6 and bit _8_ means antenna 0 and 1 respectively, bit6+bit7
- * means last rx and do tx-antenna selection for SISO transmissions
- * for NREV>=7, bit 6 and bit 7 mean antenna 0 and 1 respectively, nit6+bit7
- * means both cores active
-*/
-static void _brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc)
-{
-	s8 txant;
-
-	txant = (s8) wlc->stf->txant;
-	if (BRCMS_PHY_11N_CAP(wlc->band)) {
-		if (txant == ANT_TX_FORCE_0) {
-			wlc->stf->phytxant = PHY_TXC_ANT_0;
-		} else if (txant == ANT_TX_FORCE_1) {
-			wlc->stf->phytxant = PHY_TXC_ANT_1;
-
-			if (BRCMS_ISNPHY(wlc->band) &&
-			    NREV_GE(wlc->band->phyrev, 3)
-			    && NREV_LT(wlc->band->phyrev, 7))
-				wlc->stf->phytxant = PHY_TXC_ANT_2;
-		} else {
-			if (BRCMS_ISLCNPHY(wlc->band) ||
-			    BRCMS_ISSSLPNPHY(wlc->band))
-				wlc->stf->phytxant = PHY_TXC_LCNPHY_ANT_LAST;
-			else {
-				/* catch out of sync wlc->stf->txcore */
-				WARN_ON(wlc->stf->txchain <= 0);
-				wlc->stf->phytxant =
-				    wlc->stf->txchain << PHY_TXC_ANT_SHIFT;
-			}
-		}
-	} else {
-		if (txant == ANT_TX_FORCE_0)
-			wlc->stf->phytxant = PHY_TXC_OLD_ANT_0;
-		else if (txant == ANT_TX_FORCE_1)
-			wlc->stf->phytxant = PHY_TXC_OLD_ANT_1;
-		else
-			wlc->stf->phytxant = PHY_TXC_OLD_ANT_LAST;
-	}
-
-	brcms_b_txant_set(wlc->hw, wlc->stf->phytxant);
-}
-
-int brcms_c_stf_txchain_set(struct brcms_c_info *wlc, s32 int_val, bool force)
-{
-	u8 txchain = (u8) int_val;
-	u8 txstreams;
-	uint i;
-
-	if (wlc->stf->txchain == txchain)
-		return 0;
-
-	if ((txchain & ~wlc->stf->hw_txchain)
-	    || !(txchain & wlc->stf->hw_txchain))
-		return -EINVAL;
-
-	/*
-	 * if nrate override is configured to be non-SISO STF mode, reject
-	 * reducing txchain to 1
-	 */
-	txstreams = (u8) hweight8(txchain);
-	if (txstreams > MAX_STREAMS_SUPPORTED)
-		return -EINVAL;
-
-	wlc->stf->txchain = txchain;
-	wlc->stf->txstreams = txstreams;
-	brcms_c_stf_stbc_tx_set(wlc, wlc->band->band_stf_stbc_tx);
-	brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
-	brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
-	wlc->stf->txant =
-	    (wlc->stf->txstreams == 1) ? ANT_TX_FORCE_0 : ANT_TX_DEF;
-	_brcms_c_stf_phy_txant_upd(wlc);
-
-	wlc_phy_stf_chain_set(wlc->band->pi, wlc->stf->txchain,
-			      wlc->stf->rxchain);
-
-	for (i = 1; i <= MAX_STREAMS_SUPPORTED; i++)
-		brcms_c_stf_txcore_set(wlc, (u8) i, txcore_default[i]);
-
-	return 0;
-}
-
-/*
- * update wlc->stf->ss_opmode which represents the operational stf_ss mode
- * we're using
- */
-int brcms_c_stf_ss_update(struct brcms_c_info *wlc, struct brcms_band *band)
-{
-	int ret_code = 0;
-	u8 prev_stf_ss;
-	u8 upd_stf_ss;
-
-	prev_stf_ss = wlc->stf->ss_opmode;
-
-	/*
-	 * NOTE: opmode can only be SISO or CDD as STBC is decided on a
-	 * per-packet basis
-	 */
-	if (BRCMS_STBC_CAP_PHY(wlc) &&
-	    wlc->stf->ss_algosel_auto
-	    && (wlc->stf->ss_algo_channel != (u16) -1)) {
-		upd_stf_ss = (wlc->stf->txstreams == 1 ||
-			      isset(&wlc->stf->ss_algo_channel,
-				    PHY_TXC1_MODE_SISO)) ?
-				    PHY_TXC1_MODE_SISO : PHY_TXC1_MODE_CDD;
-	} else {
-		if (wlc->band != band)
-			return ret_code;
-		upd_stf_ss = (wlc->stf->txstreams == 1) ?
-				PHY_TXC1_MODE_SISO : band->band_stf_ss_mode;
-	}
-	if (prev_stf_ss != upd_stf_ss) {
-		wlc->stf->ss_opmode = upd_stf_ss;
-		brcms_b_band_stf_ss_set(wlc->hw, upd_stf_ss);
-	}
-
-	return ret_code;
-}
-
-int brcms_c_stf_attach(struct brcms_c_info *wlc)
-{
-	wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_SISO;
-	wlc->bandstate[BAND_5G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_CDD;
-
-	if (BRCMS_ISNPHY(wlc->band) &&
-	    (wlc_phy_txpower_hw_ctrl_get(wlc->band->pi) != PHY_TPC_HW_ON))
-		wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode =
-		    PHY_TXC1_MODE_CDD;
-	brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
-	brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
-
-	brcms_c_stf_stbc_rx_ht_update(wlc, HT_CAP_RX_STBC_NO);
-	wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF;
-	wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF;
-
-	if (BRCMS_STBC_CAP_PHY(wlc)) {
-		wlc->stf->ss_algosel_auto = true;
-		/* Init the default value */
-		wlc->stf->ss_algo_channel = (u16) -1;
-	}
-	return 0;
-}
-
-void brcms_c_stf_detach(struct brcms_c_info *wlc)
-{
-}
-
-void brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc)
-{
-	_brcms_c_stf_phy_txant_upd(wlc);
-}
-
-void brcms_c_stf_phy_chain_calc(struct brcms_c_info *wlc)
-{
-	struct ssb_sprom *sprom = &wlc->hw->d11core->bus->sprom;
-
-	/* get available rx/tx chains */
-	wlc->stf->hw_txchain = sprom->txchain;
-	wlc->stf->hw_rxchain = sprom->rxchain;
-
-	/* these parameter are intended to be used for all PHY types */
-	if (wlc->stf->hw_txchain == 0 || wlc->stf->hw_txchain == 0xf) {
-		if (BRCMS_ISNPHY(wlc->band))
-			wlc->stf->hw_txchain = TXCHAIN_DEF_NPHY;
-		else
-			wlc->stf->hw_txchain = TXCHAIN_DEF;
-	}
-
-	wlc->stf->txchain = wlc->stf->hw_txchain;
-	wlc->stf->txstreams = (u8) hweight8(wlc->stf->hw_txchain);
-
-	if (wlc->stf->hw_rxchain == 0 || wlc->stf->hw_rxchain == 0xf) {
-		if (BRCMS_ISNPHY(wlc->band))
-			wlc->stf->hw_rxchain = RXCHAIN_DEF_NPHY;
-		else
-			wlc->stf->hw_rxchain = RXCHAIN_DEF;
-	}
-
-	wlc->stf->rxchain = wlc->stf->hw_rxchain;
-	wlc->stf->rxstreams = (u8) hweight8(wlc->stf->hw_rxchain);
-
-	/* initialize the txcore table */
-	memcpy(wlc->stf->txcore, txcore_default, sizeof(wlc->stf->txcore));
-
-	/* default spatial_policy */
-	wlc->stf->spatial_policy = MIN_SPATIAL_EXPANSION;
-	brcms_c_stf_spatial_policy_set(wlc, MIN_SPATIAL_EXPANSION);
-}
-
-static u16 _brcms_c_stf_phytxchain_sel(struct brcms_c_info *wlc,
-				       u32 rspec)
-{
-	u16 phytxant = wlc->stf->phytxant;
-
-	if (rspec_stf(rspec) != PHY_TXC1_MODE_SISO)
-		phytxant = wlc->stf->txchain << PHY_TXC_ANT_SHIFT;
-	else if (wlc->stf->txant == ANT_TX_DEF)
-		phytxant = wlc->stf->txchain << PHY_TXC_ANT_SHIFT;
-	phytxant &= PHY_TXC_ANT_MASK;
-	return phytxant;
-}
-
-u16 brcms_c_stf_phytxchain_sel(struct brcms_c_info *wlc, u32 rspec)
-{
-	return _brcms_c_stf_phytxchain_sel(wlc, rspec);
-}
-
-u16 brcms_c_stf_d11hdrs_phyctl_txant(struct brcms_c_info *wlc, u32 rspec)
-{
-	u16 phytxant = wlc->stf->phytxant;
-	u16 mask = PHY_TXC_ANT_MASK;
-
-	/* for non-siso rates or default setting, use the available chains */
-	if (BRCMS_ISNPHY(wlc->band)) {
-		phytxant = _brcms_c_stf_phytxchain_sel(wlc, rspec);
-		mask = PHY_TXC_HTANT_MASK;
-	}
-	phytxant |= phytxant & mask;
-	return phytxant;
-}