Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 221 insertions, 0 deletions

diff --git a/kernel/drivers/net/wireless/brcm80211/brcmutil/d11.c b/kernel/drivers/net/wireless/brcm80211/brcmutil/d11.c
new file mode 100644
index 000000000..2b2522bdd
--- /dev/null
+++ b/kernel/drivers/net/wireless/brcm80211/brcmutil/d11.c
@@ -0,0 +1,221 @@
+/*
+ * 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.
+ */
+/*********************channel spec common functions*********************/
+
+#include <linux/module.h>
+
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+#include <brcmu_d11.h>
+
+static u16 d11n_sb(enum brcmu_chan_sb sb)
+{
+	switch (sb) {
+	case BRCMU_CHAN_SB_NONE:
+		return BRCMU_CHSPEC_D11N_SB_N;
+	case BRCMU_CHAN_SB_L:
+		return BRCMU_CHSPEC_D11N_SB_L;
+	case BRCMU_CHAN_SB_U:
+		return BRCMU_CHSPEC_D11N_SB_U;
+	default:
+		WARN_ON(1);
+	}
+	return 0;
+}
+
+static u16 d11n_bw(enum brcmu_chan_bw bw)
+{
+	switch (bw) {
+	case BRCMU_CHAN_BW_20:
+		return BRCMU_CHSPEC_D11N_BW_20;
+	case BRCMU_CHAN_BW_40:
+		return BRCMU_CHSPEC_D11N_BW_40;
+	default:
+		WARN_ON(1);
+	}
+	return 0;
+}
+
+static void brcmu_d11n_encchspec(struct brcmu_chan *ch)
+{
+	if (ch->bw == BRCMU_CHAN_BW_20)
+		ch->sb = BRCMU_CHAN_SB_NONE;
+
+	ch->chspec = 0;
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_CH_MASK,
+			BRCMU_CHSPEC_CH_SHIFT, ch->chnum);
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_SB_MASK,
+			0, d11n_sb(ch->sb));
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_BW_MASK,
+			0, d11n_bw(ch->bw));
+
+	if (ch->chnum <= CH_MAX_2G_CHANNEL)
+		ch->chspec |= BRCMU_CHSPEC_D11N_BND_2G;
+	else
+		ch->chspec |= BRCMU_CHSPEC_D11N_BND_5G;
+}
+
+static u16 d11ac_bw(enum brcmu_chan_bw bw)
+{
+	switch (bw) {
+	case BRCMU_CHAN_BW_20:
+		return BRCMU_CHSPEC_D11AC_BW_20;
+	case BRCMU_CHAN_BW_40:
+		return BRCMU_CHSPEC_D11AC_BW_40;
+	case BRCMU_CHAN_BW_80:
+		return BRCMU_CHSPEC_D11AC_BW_80;
+	default:
+		WARN_ON(1);
+	}
+	return 0;
+}
+
+static void brcmu_d11ac_encchspec(struct brcmu_chan *ch)
+{
+	if (ch->bw == BRCMU_CHAN_BW_20 || ch->sb == BRCMU_CHAN_SB_NONE)
+		ch->sb = BRCMU_CHAN_SB_L;
+
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_CH_MASK,
+			BRCMU_CHSPEC_CH_SHIFT, ch->chnum);
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11AC_SB_MASK,
+			BRCMU_CHSPEC_D11AC_SB_SHIFT, ch->sb);
+	brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11AC_BW_MASK,
+			0, d11ac_bw(ch->bw));
+
+	ch->chspec &= ~BRCMU_CHSPEC_D11AC_BND_MASK;
+	if (ch->chnum <= CH_MAX_2G_CHANNEL)
+		ch->chspec |= BRCMU_CHSPEC_D11AC_BND_2G;
+	else
+		ch->chspec |= BRCMU_CHSPEC_D11AC_BND_5G;
+}
+
+static void brcmu_d11n_decchspec(struct brcmu_chan *ch)
+{
+	u16 val;
+
+	ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK);
+
+	switch (ch->chspec & BRCMU_CHSPEC_D11N_BW_MASK) {
+	case BRCMU_CHSPEC_D11N_BW_20:
+		ch->bw = BRCMU_CHAN_BW_20;
+		ch->sb = BRCMU_CHAN_SB_NONE;
+		break;
+	case BRCMU_CHSPEC_D11N_BW_40:
+		ch->bw = BRCMU_CHAN_BW_40;
+		val = ch->chspec & BRCMU_CHSPEC_D11N_SB_MASK;
+		if (val == BRCMU_CHSPEC_D11N_SB_L) {
+			ch->sb = BRCMU_CHAN_SB_L;
+			ch->chnum -= CH_10MHZ_APART;
+		} else {
+			ch->sb = BRCMU_CHAN_SB_U;
+			ch->chnum += CH_10MHZ_APART;
+		}
+		break;
+	default:
+		WARN_ON_ONCE(1);
+		break;
+	}
+
+	switch (ch->chspec & BRCMU_CHSPEC_D11N_BND_MASK) {
+	case BRCMU_CHSPEC_D11N_BND_5G:
+		ch->band = BRCMU_CHAN_BAND_5G;
+		break;
+	case BRCMU_CHSPEC_D11N_BND_2G:
+		ch->band = BRCMU_CHAN_BAND_2G;
+		break;
+	default:
+		WARN_ON_ONCE(1);
+		break;
+	}
+}
+
+static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
+{
+	u16 val;
+
+	ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK);
+
+	switch (ch->chspec & BRCMU_CHSPEC_D11AC_BW_MASK) {
+	case BRCMU_CHSPEC_D11AC_BW_20:
+		ch->bw = BRCMU_CHAN_BW_20;
+		ch->sb = BRCMU_CHAN_SB_NONE;
+		break;
+	case BRCMU_CHSPEC_D11AC_BW_40:
+		ch->bw = BRCMU_CHAN_BW_40;
+		val = ch->chspec & BRCMU_CHSPEC_D11AC_SB_MASK;
+		if (val == BRCMU_CHSPEC_D11AC_SB_L) {
+			ch->sb = BRCMU_CHAN_SB_L;
+			ch->chnum -= CH_10MHZ_APART;
+		} else if (val == BRCMU_CHSPEC_D11AC_SB_U) {
+			ch->sb = BRCMU_CHAN_SB_U;
+			ch->chnum += CH_10MHZ_APART;
+		} else {
+			WARN_ON_ONCE(1);
+		}
+		break;
+	case BRCMU_CHSPEC_D11AC_BW_80:
+		ch->bw = BRCMU_CHAN_BW_80;
+		ch->sb = brcmu_maskget16(ch->chspec, BRCMU_CHSPEC_D11AC_SB_MASK,
+					 BRCMU_CHSPEC_D11AC_SB_SHIFT);
+		switch (ch->sb) {
+		case BRCMU_CHAN_SB_LL:
+			ch->chnum -= CH_30MHZ_APART;
+			break;
+		case BRCMU_CHAN_SB_LU:
+			ch->chnum -= CH_10MHZ_APART;
+			break;
+		case BRCMU_CHAN_SB_UL:
+			ch->chnum += CH_10MHZ_APART;
+			break;
+		case BRCMU_CHAN_SB_UU:
+			ch->chnum += CH_30MHZ_APART;
+			break;
+		default:
+			WARN_ON_ONCE(1);
+			break;
+		}
+		break;
+	case BRCMU_CHSPEC_D11AC_BW_8080:
+	case BRCMU_CHSPEC_D11AC_BW_160:
+	default:
+		WARN_ON_ONCE(1);
+		break;
+	}
+
+	switch (ch->chspec & BRCMU_CHSPEC_D11AC_BND_MASK) {
+	case BRCMU_CHSPEC_D11AC_BND_5G:
+		ch->band = BRCMU_CHAN_BAND_5G;
+		break;
+	case BRCMU_CHSPEC_D11AC_BND_2G:
+		ch->band = BRCMU_CHAN_BAND_2G;
+		break;
+	default:
+		WARN_ON_ONCE(1);
+		break;
+	}
+}
+
+void brcmu_d11_attach(struct brcmu_d11inf *d11inf)
+{
+	if (d11inf->io_type == BRCMU_D11N_IOTYPE) {
+		d11inf->encchspec = brcmu_d11n_encchspec;
+		d11inf->decchspec = brcmu_d11n_decchspec;
+	} else {
+		d11inf->encchspec = brcmu_d11ac_encchspec;
+		d11inf->decchspec = brcmu_d11ac_decchspec;
+	}
+}
+EXPORT_SYMBOL(brcmu_d11_attach);