brcm80211: move under broadcom vendor directory

Part of reorganising wireless drivers directory and Kconfig. Note that I had to
edit Makefiles from subdirectories to use the new location.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 0 insertions, 497 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c b/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c
deleted file mode 100644
index 4e33f96b3dd1..000000000000
--- a/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c
+++ /dev/null
@@ -1,497 +0,0 @@
-/*
- * Copyright (c) 2013 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 <linux/slab.h>
-#include <linux/netdevice.h>
-#include <net/cfg80211.h>
-
-#include <brcmu_wifi.h>
-#include <brcmu_utils.h>
-#include <defs.h>
-#include "core.h"
-#include "debug.h"
-#include "fwil.h"
-#include "fwil_types.h"
-#include "btcoex.h"
-#include "p2p.h"
-#include "cfg80211.h"
-
-/* T1 start SCO/eSCO priority suppression */
-#define BRCMF_BTCOEX_OPPR_WIN_TIME   2000
-
-/* BT registers values during DHCP */
-#define BRCMF_BT_DHCP_REG50 0x8022
-#define BRCMF_BT_DHCP_REG51 0
-#define BRCMF_BT_DHCP_REG64 0
-#define BRCMF_BT_DHCP_REG65 0
-#define BRCMF_BT_DHCP_REG71 0
-#define BRCMF_BT_DHCP_REG66 0x2710
-#define BRCMF_BT_DHCP_REG41 0x33
-#define BRCMF_BT_DHCP_REG68 0x190
-
-/* number of samples for SCO detection */
-#define BRCMF_BT_SCO_SAMPLES 12
-
-/**
-* enum brcmf_btcoex_state - BT coex DHCP state machine states
-* @BRCMF_BT_DHCP_IDLE: DCHP is idle
-* @BRCMF_BT_DHCP_START: DHCP started, wait before
-*	boosting wifi priority
-* @BRCMF_BT_DHCP_OPPR_WIN: graceful DHCP opportunity ended,
-*	boost wifi priority
-* @BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT: wifi priority boost end,
-*	restore defaults
-*/
-enum brcmf_btcoex_state {
-	BRCMF_BT_DHCP_IDLE,
-	BRCMF_BT_DHCP_START,
-	BRCMF_BT_DHCP_OPPR_WIN,
-	BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT
-};
-
-/**
- * struct brcmf_btcoex_info - BT coex related information
- * @vif: interface for which request was done.
- * @timer: timer for DHCP state machine
- * @timeout: configured timeout.
- * @timer_on:  DHCP timer active
- * @dhcp_done: DHCP finished before T1/T2 timer expiration
- * @bt_state: DHCP state machine state
- * @work: DHCP state machine work
- * @cfg: driver private data for cfg80211 interface
- * @reg66: saved value of btc_params 66
- * @reg41: saved value of btc_params 41
- * @reg68: saved value of btc_params 68
- * @saved_regs_part1: flag indicating regs 66,41,68
- *	have been saved
- * @reg51: saved value of btc_params 51
- * @reg64: saved value of btc_params 64
- * @reg65: saved value of btc_params 65
- * @reg71: saved value of btc_params 71
- * @saved_regs_part1: flag indicating regs 50,51,64,65,71
- *	have been saved
- */
-struct brcmf_btcoex_info {
-	struct brcmf_cfg80211_vif *vif;
-	struct timer_list timer;
-	u16 timeout;
-	bool timer_on;
-	bool dhcp_done;
-	enum brcmf_btcoex_state bt_state;
-	struct work_struct work;
-	struct brcmf_cfg80211_info *cfg;
-	u32 reg66;
-	u32 reg41;
-	u32 reg68;
-	bool saved_regs_part1;
-	u32 reg50;
-	u32 reg51;
-	u32 reg64;
-	u32 reg65;
-	u32 reg71;
-	bool saved_regs_part2;
-};
-
-/**
- * brcmf_btcoex_params_write() - write btc_params firmware variable
- * @ifp: interface
- * @addr: btc_params register number
- * @data: data to write
- */
-static s32 brcmf_btcoex_params_write(struct brcmf_if *ifp, u32 addr, u32 data)
-{
-	struct {
-		__le32 addr;
-		__le32 data;
-	} reg_write;
-
-	reg_write.addr = cpu_to_le32(addr);
-	reg_write.data = cpu_to_le32(data);
-	return brcmf_fil_iovar_data_set(ifp, "btc_params",
-					&reg_write, sizeof(reg_write));
-}
-
-/**
- * brcmf_btcoex_params_read() - read btc_params firmware variable
- * @ifp: interface
- * @addr: btc_params register number
- * @data: read data
- */
-static s32 brcmf_btcoex_params_read(struct brcmf_if *ifp, u32 addr, u32 *data)
-{
-	*data = addr;
-
-	return brcmf_fil_iovar_int_get(ifp, "btc_params", data);
-}
-
-/**
- * brcmf_btcoex_boost_wifi() - control BT SCO/eSCO parameters
- * @btci: BT coex info
- * @trump_sco:
- *	true - set SCO/eSCO parameters for compatibility
- *		during DHCP window
- *	false - restore saved parameter values
- *
- * Enhanced BT COEX settings for eSCO compatibility during DHCP window
- */
-static void brcmf_btcoex_boost_wifi(struct brcmf_btcoex_info *btci,
-				    bool trump_sco)
-{
-	struct brcmf_if *ifp = brcmf_get_ifp(btci->cfg->pub, 0);
-
-	if (trump_sco && !btci->saved_regs_part2) {
-		/* this should reduce eSCO agressive
-		 * retransmit w/o breaking it
-		 */
-
-		/* save current */
-		brcmf_dbg(INFO, "new SCO/eSCO coex algo {save & override}\n");
-		brcmf_btcoex_params_read(ifp, 50, &btci->reg50);
-		brcmf_btcoex_params_read(ifp, 51, &btci->reg51);
-		brcmf_btcoex_params_read(ifp, 64, &btci->reg64);
-		brcmf_btcoex_params_read(ifp, 65, &btci->reg65);
-		brcmf_btcoex_params_read(ifp, 71, &btci->reg71);
-
-		btci->saved_regs_part2 = true;
-		brcmf_dbg(INFO,
-			  "saved bt_params[50,51,64,65,71]: 0x%x 0x%x 0x%x 0x%x 0x%x\n",
-			  btci->reg50, btci->reg51, btci->reg64,
-			  btci->reg65, btci->reg71);
-
-		/* pacify the eSco   */
-		brcmf_btcoex_params_write(ifp, 50, BRCMF_BT_DHCP_REG50);
-		brcmf_btcoex_params_write(ifp, 51, BRCMF_BT_DHCP_REG51);
-		brcmf_btcoex_params_write(ifp, 64, BRCMF_BT_DHCP_REG64);
-		brcmf_btcoex_params_write(ifp, 65, BRCMF_BT_DHCP_REG65);
-		brcmf_btcoex_params_write(ifp, 71, BRCMF_BT_DHCP_REG71);
-
-	} else if (btci->saved_regs_part2) {
-		/* restore previously saved bt params */
-		brcmf_dbg(INFO, "Do new SCO/eSCO coex algo {restore}\n");
-		brcmf_btcoex_params_write(ifp, 50, btci->reg50);
-		brcmf_btcoex_params_write(ifp, 51, btci->reg51);
-		brcmf_btcoex_params_write(ifp, 64, btci->reg64);
-		brcmf_btcoex_params_write(ifp, 65, btci->reg65);
-		brcmf_btcoex_params_write(ifp, 71, btci->reg71);
-
-		brcmf_dbg(INFO,
-			  "restored bt_params[50,51,64,65,71]: 0x%x 0x%x 0x%x 0x%x 0x%x\n",
-			  btci->reg50, btci->reg51, btci->reg64,
-			  btci->reg65, btci->reg71);
-
-		btci->saved_regs_part2 = false;
-	} else {
-		brcmf_dbg(INFO, "attempted to restore not saved BTCOEX params\n");
-	}
-}
-
-/**
- * brcmf_btcoex_is_sco_active() - check if SCO/eSCO is active
- * @ifp: interface
- *
- * return: true if SCO/eSCO session is active
- */
-static bool brcmf_btcoex_is_sco_active(struct brcmf_if *ifp)
-{
-	int ioc_res = 0;
-	bool res = false;
-	int sco_id_cnt = 0;
-	u32 param27;
-	int i;
-
-	for (i = 0; i < BRCMF_BT_SCO_SAMPLES; i++) {
-		ioc_res = brcmf_btcoex_params_read(ifp, 27, &param27);
-
-		if (ioc_res < 0) {
-			brcmf_err("ioc read btc params error\n");
-			break;
-		}
-
-		brcmf_dbg(INFO, "sample[%d], btc_params 27:%x\n", i, param27);
-
-		if ((param27 & 0x6) == 2) { /* count both sco & esco  */
-			sco_id_cnt++;
-		}
-
-		if (sco_id_cnt > 2) {
-			brcmf_dbg(INFO,
-				  "sco/esco detected, pkt id_cnt:%d samples:%d\n",
-				  sco_id_cnt, i);
-			res = true;
-			break;
-		}
-	}
-	brcmf_dbg(TRACE, "exit: result=%d\n", res);
-	return res;
-}
-
-/**
- * btcmf_btcoex_save_part1() - save first step parameters.
- */
-static void btcmf_btcoex_save_part1(struct brcmf_btcoex_info *btci)
-{
-	struct brcmf_if *ifp = btci->vif->ifp;
-
-	if (!btci->saved_regs_part1) {
-		/* Retrieve and save original reg value */
-		brcmf_btcoex_params_read(ifp, 66, &btci->reg66);
-		brcmf_btcoex_params_read(ifp, 41, &btci->reg41);
-		brcmf_btcoex_params_read(ifp, 68, &btci->reg68);
-		btci->saved_regs_part1 = true;
-		brcmf_dbg(INFO,
-			  "saved btc_params regs (66,41,68) 0x%x 0x%x 0x%x\n",
-			  btci->reg66, btci->reg41,
-			  btci->reg68);
-	}
-}
-
-/**
- * brcmf_btcoex_restore_part1() - restore first step parameters.
- */
-static void brcmf_btcoex_restore_part1(struct brcmf_btcoex_info *btci)
-{
-	struct brcmf_if *ifp;
-
-	if (btci->saved_regs_part1) {
-		btci->saved_regs_part1 = false;
-		ifp = btci->vif->ifp;
-		brcmf_btcoex_params_write(ifp, 66, btci->reg66);
-		brcmf_btcoex_params_write(ifp, 41, btci->reg41);
-		brcmf_btcoex_params_write(ifp, 68, btci->reg68);
-		brcmf_dbg(INFO,
-			  "restored btc_params regs {66,41,68} 0x%x 0x%x 0x%x\n",
-			  btci->reg66, btci->reg41,
-			  btci->reg68);
-	}
-}
-
-/**
- * brcmf_btcoex_timerfunc() - BT coex timer callback
- */
-static void brcmf_btcoex_timerfunc(ulong data)
-{
-	struct brcmf_btcoex_info *bt_local = (struct brcmf_btcoex_info *)data;
-	brcmf_dbg(TRACE, "enter\n");
-
-	bt_local->timer_on = false;
-	schedule_work(&bt_local->work);
-}
-
-/**
- * brcmf_btcoex_handler() - BT coex state machine work handler
- * @work: work
- */
-static void brcmf_btcoex_handler(struct work_struct *work)
-{
-	struct brcmf_btcoex_info *btci;
-	btci = container_of(work, struct brcmf_btcoex_info, work);
-	if (btci->timer_on) {
-		btci->timer_on = false;
-		del_timer_sync(&btci->timer);
-	}
-
-	switch (btci->bt_state) {
-	case BRCMF_BT_DHCP_START:
-		/* DHCP started provide OPPORTUNITY window
-		   to get DHCP address
-		*/
-		brcmf_dbg(INFO, "DHCP started\n");
-		btci->bt_state = BRCMF_BT_DHCP_OPPR_WIN;
-		if (btci->timeout < BRCMF_BTCOEX_OPPR_WIN_TIME) {
-			mod_timer(&btci->timer, btci->timer.expires);
-		} else {
-			btci->timeout -= BRCMF_BTCOEX_OPPR_WIN_TIME;
-			mod_timer(&btci->timer,
-				  jiffies +
-				  msecs_to_jiffies(BRCMF_BTCOEX_OPPR_WIN_TIME));
-		}
-		btci->timer_on = true;
-		break;
-
-	case BRCMF_BT_DHCP_OPPR_WIN:
-		if (btci->dhcp_done) {
-			brcmf_dbg(INFO, "DHCP done before T1 expiration\n");
-			goto idle;
-		}
-
-		/* DHCP is not over yet, start lowering BT priority */
-		brcmf_dbg(INFO, "DHCP T1:%d expired\n",
-			  BRCMF_BTCOEX_OPPR_WIN_TIME);
-		brcmf_btcoex_boost_wifi(btci, true);
-
-		btci->bt_state = BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT;
-		mod_timer(&btci->timer,
-			  jiffies + msecs_to_jiffies(btci->timeout));
-		btci->timer_on = true;
-		break;
-
-	case BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT:
-		if (btci->dhcp_done)
-			brcmf_dbg(INFO, "DHCP done before T2 expiration\n");
-		else
-			brcmf_dbg(INFO, "DHCP T2:%d expired\n",
-				  BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT);
-
-		goto idle;
-
-	default:
-		brcmf_err("invalid state=%d !!!\n", btci->bt_state);
-		goto idle;
-	}
-
-	return;
-
-idle:
-	btci->bt_state = BRCMF_BT_DHCP_IDLE;
-	btci->timer_on = false;
-	brcmf_btcoex_boost_wifi(btci, false);
-	cfg80211_crit_proto_stopped(&btci->vif->wdev, GFP_KERNEL);
-	brcmf_btcoex_restore_part1(btci);
-	btci->vif = NULL;
-}
-
-/**
- * brcmf_btcoex_attach() - initialize BT coex data
- * @cfg: driver private cfg80211 data
- *
- * return: 0 on success
- */
-int brcmf_btcoex_attach(struct brcmf_cfg80211_info *cfg)
-{
-	struct brcmf_btcoex_info *btci = NULL;
-	brcmf_dbg(TRACE, "enter\n");
-
-	btci = kmalloc(sizeof(struct brcmf_btcoex_info), GFP_KERNEL);
-	if (!btci)
-		return -ENOMEM;
-
-	btci->bt_state = BRCMF_BT_DHCP_IDLE;
-
-	/* Set up timer for BT  */
-	btci->timer_on = false;
-	btci->timeout = BRCMF_BTCOEX_OPPR_WIN_TIME;
-	init_timer(&btci->timer);
-	btci->timer.data = (ulong)btci;
-	btci->timer.function = brcmf_btcoex_timerfunc;
-	btci->cfg = cfg;
-	btci->saved_regs_part1 = false;
-	btci->saved_regs_part2 = false;
-
-	INIT_WORK(&btci->work, brcmf_btcoex_handler);
-
-	cfg->btcoex = btci;
-	return 0;
-}
-
-/**
- * brcmf_btcoex_detach - clean BT coex data
- * @cfg: driver private cfg80211 data
- */
-void brcmf_btcoex_detach(struct brcmf_cfg80211_info *cfg)
-{
-	brcmf_dbg(TRACE, "enter\n");
-
-	if (!cfg->btcoex)
-		return;
-
-	if (cfg->btcoex->timer_on) {
-		cfg->btcoex->timer_on = false;
-		del_timer_sync(&cfg->btcoex->timer);
-	}
-
-	cancel_work_sync(&cfg->btcoex->work);
-
-	brcmf_btcoex_boost_wifi(cfg->btcoex, false);
-	brcmf_btcoex_restore_part1(cfg->btcoex);
-
-	kfree(cfg->btcoex);
-	cfg->btcoex = NULL;
-}
-
-static void brcmf_btcoex_dhcp_start(struct brcmf_btcoex_info *btci)
-{
-	struct brcmf_if *ifp = btci->vif->ifp;
-
-	btcmf_btcoex_save_part1(btci);
-	/* set new regs values */
-	brcmf_btcoex_params_write(ifp, 66, BRCMF_BT_DHCP_REG66);
-	brcmf_btcoex_params_write(ifp, 41, BRCMF_BT_DHCP_REG41);
-	brcmf_btcoex_params_write(ifp, 68, BRCMF_BT_DHCP_REG68);
-	btci->dhcp_done = false;
-	btci->bt_state = BRCMF_BT_DHCP_START;
-	schedule_work(&btci->work);
-	brcmf_dbg(TRACE, "enable BT DHCP Timer\n");
-}
-
-static void brcmf_btcoex_dhcp_end(struct brcmf_btcoex_info *btci)
-{
-	/* Stop any bt timer because DHCP session is done */
-	btci->dhcp_done = true;
-	if (btci->timer_on) {
-		brcmf_dbg(INFO, "disable BT DHCP Timer\n");
-		btci->timer_on = false;
-		del_timer_sync(&btci->timer);
-
-		/* schedule worker if transition to IDLE is needed */
-		if (btci->bt_state != BRCMF_BT_DHCP_IDLE) {
-			brcmf_dbg(INFO, "bt_state:%d\n",
-				  btci->bt_state);
-			schedule_work(&btci->work);
-		}
-	} else {
-		/* Restore original values */
-		brcmf_btcoex_restore_part1(btci);
-	}
-}
-
-/**
- * brcmf_btcoex_set_mode - set BT coex mode
- * @cfg: driver private cfg80211 data
- * @mode: Wifi-Bluetooth coexistence mode
- *
- * return: 0 on success
- */
-int brcmf_btcoex_set_mode(struct brcmf_cfg80211_vif *vif,
-			  enum brcmf_btcoex_mode mode, u16 duration)
-{
-	struct brcmf_cfg80211_info *cfg = wiphy_priv(vif->wdev.wiphy);
-	struct brcmf_btcoex_info *btci = cfg->btcoex;
-	struct brcmf_if *ifp = brcmf_get_ifp(cfg->pub, 0);
-
-	switch (mode) {
-	case BRCMF_BTCOEX_DISABLED:
-		brcmf_dbg(INFO, "DHCP session starts\n");
-		if (btci->bt_state != BRCMF_BT_DHCP_IDLE)
-			return -EBUSY;
-		/* Start BT timer only for SCO connection */
-		if (brcmf_btcoex_is_sco_active(ifp)) {
-			btci->timeout = duration;
-			btci->vif = vif;
-			brcmf_btcoex_dhcp_start(btci);
-		}
-		break;
-
-	case BRCMF_BTCOEX_ENABLED:
-		brcmf_dbg(INFO, "DHCP session ends\n");
-		if (btci->bt_state != BRCMF_BT_DHCP_IDLE &&
-		    vif == btci->vif) {
-			brcmf_btcoex_dhcp_end(btci);
-		}
-		break;
-	default:
-		brcmf_dbg(INFO, "Unknown mode, ignored\n");
-	}
-	return 0;
-}