Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 514 insertions, 0 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/rate.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/rate.c
new file mode 100644
index 0000000000..0a0c0ad4f9
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/rate.c
@@ -0,0 +1,514 @@
+/*
+ * 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 <brcmu_wifi.h>
+#include <brcmu_utils.h>
+
+#include "d11.h"
+#include "pub.h"
+#include "rate.h"
+
+/*
+ * Rate info per rate: It tells whether a rate is ofdm or not and its phy_rate
+ * value
+ */
+const u8 rate_info[BRCM_MAXRATE + 1] = {
+	/*  0     1     2     3     4     5     6     7     8     9 */
+/*   0 */ 0x00, 0x00, 0x0a, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  10 */ 0x00, 0x37, 0x8b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x00,
+/*  20 */ 0x00, 0x00, 0x6e, 0x00, 0x8a, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00, 0x00, 0x00,
+/*  40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x00,
+/*  50 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  60 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  70 */ 0x00, 0x00, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  80 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+/*  90 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00,
+/* 100 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8c
+};
+
+/* rates are in units of Kbps */
+const struct brcms_mcs_info mcs_table[MCS_TABLE_SIZE] = {
+	/* MCS  0: SS 1, MOD: BPSK,  CR 1/2 */
+	{6500, 13500, CEIL(6500 * 10, 9), CEIL(13500 * 10, 9), 0x00,
+	 BRCM_RATE_6M},
+	/* MCS  1: SS 1, MOD: QPSK,  CR 1/2 */
+	{13000, 27000, CEIL(13000 * 10, 9), CEIL(27000 * 10, 9), 0x08,
+	 BRCM_RATE_12M},
+	/* MCS  2: SS 1, MOD: QPSK,  CR 3/4 */
+	{19500, 40500, CEIL(19500 * 10, 9), CEIL(40500 * 10, 9), 0x0A,
+	 BRCM_RATE_18M},
+	/* MCS  3: SS 1, MOD: 16QAM, CR 1/2 */
+	{26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0x10,
+	 BRCM_RATE_24M},
+	/* MCS  4: SS 1, MOD: 16QAM, CR 3/4 */
+	{39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x12,
+	 BRCM_RATE_36M},
+	/* MCS  5: SS 1, MOD: 64QAM, CR 2/3 */
+	{52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0x19,
+	 BRCM_RATE_48M},
+	/* MCS  6: SS 1, MOD: 64QAM, CR 3/4 */
+	{58500, 121500, CEIL(58500 * 10, 9), CEIL(121500 * 10, 9), 0x1A,
+	 BRCM_RATE_54M},
+	/* MCS  7: SS 1, MOD: 64QAM, CR 5/6 */
+	{65000, 135000, CEIL(65000 * 10, 9), CEIL(135000 * 10, 9), 0x1C,
+	 BRCM_RATE_54M},
+	/* MCS  8: SS 2, MOD: BPSK,  CR 1/2 */
+	{13000, 27000, CEIL(13000 * 10, 9), CEIL(27000 * 10, 9), 0x40,
+	 BRCM_RATE_6M},
+	/* MCS  9: SS 2, MOD: QPSK,  CR 1/2 */
+	{26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0x48,
+	 BRCM_RATE_12M},
+	/* MCS 10: SS 2, MOD: QPSK,  CR 3/4 */
+	{39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x4A,
+	 BRCM_RATE_18M},
+	/* MCS 11: SS 2, MOD: 16QAM, CR 1/2 */
+	{52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0x50,
+	 BRCM_RATE_24M},
+	/* MCS 12: SS 2, MOD: 16QAM, CR 3/4 */
+	{78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0x52,
+	 BRCM_RATE_36M},
+	/* MCS 13: SS 2, MOD: 64QAM, CR 2/3 */
+	{104000, 216000, CEIL(104000 * 10, 9), CEIL(216000 * 10, 9), 0x59,
+	 BRCM_RATE_48M},
+	/* MCS 14: SS 2, MOD: 64QAM, CR 3/4 */
+	{117000, 243000, CEIL(117000 * 10, 9), CEIL(243000 * 10, 9), 0x5A,
+	 BRCM_RATE_54M},
+	/* MCS 15: SS 2, MOD: 64QAM, CR 5/6 */
+	{130000, 270000, CEIL(130000 * 10, 9), CEIL(270000 * 10, 9), 0x5C,
+	 BRCM_RATE_54M},
+	/* MCS 16: SS 3, MOD: BPSK,  CR 1/2 */
+	{19500, 40500, CEIL(19500 * 10, 9), CEIL(40500 * 10, 9), 0x80,
+	 BRCM_RATE_6M},
+	/* MCS 17: SS 3, MOD: QPSK,  CR 1/2 */
+	{39000, 81000, CEIL(39000 * 10, 9), CEIL(81000 * 10, 9), 0x88,
+	 BRCM_RATE_12M},
+	/* MCS 18: SS 3, MOD: QPSK,  CR 3/4 */
+	{58500, 121500, CEIL(58500 * 10, 9), CEIL(121500 * 10, 9), 0x8A,
+	 BRCM_RATE_18M},
+	/* MCS 19: SS 3, MOD: 16QAM, CR 1/2 */
+	{78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0x90,
+	 BRCM_RATE_24M},
+	/* MCS 20: SS 3, MOD: 16QAM, CR 3/4 */
+	{117000, 243000, CEIL(117000 * 10, 9), CEIL(243000 * 10, 9), 0x92,
+	 BRCM_RATE_36M},
+	/* MCS 21: SS 3, MOD: 64QAM, CR 2/3 */
+	{156000, 324000, CEIL(156000 * 10, 9), CEIL(324000 * 10, 9), 0x99,
+	 BRCM_RATE_48M},
+	/* MCS 22: SS 3, MOD: 64QAM, CR 3/4 */
+	{175500, 364500, CEIL(175500 * 10, 9), CEIL(364500 * 10, 9), 0x9A,
+	 BRCM_RATE_54M},
+	/* MCS 23: SS 3, MOD: 64QAM, CR 5/6 */
+	{195000, 405000, CEIL(195000 * 10, 9), CEIL(405000 * 10, 9), 0x9B,
+	 BRCM_RATE_54M},
+	/* MCS 24: SS 4, MOD: BPSK,  CR 1/2 */
+	{26000, 54000, CEIL(26000 * 10, 9), CEIL(54000 * 10, 9), 0xC0,
+	 BRCM_RATE_6M},
+	/* MCS 25: SS 4, MOD: QPSK,  CR 1/2 */
+	{52000, 108000, CEIL(52000 * 10, 9), CEIL(108000 * 10, 9), 0xC8,
+	 BRCM_RATE_12M},
+	/* MCS 26: SS 4, MOD: QPSK,  CR 3/4 */
+	{78000, 162000, CEIL(78000 * 10, 9), CEIL(162000 * 10, 9), 0xCA,
+	 BRCM_RATE_18M},
+	/* MCS 27: SS 4, MOD: 16QAM, CR 1/2 */
+	{104000, 216000, CEIL(104000 * 10, 9), CEIL(216000 * 10, 9), 0xD0,
+	 BRCM_RATE_24M},
+	/* MCS 28: SS 4, MOD: 16QAM, CR 3/4 */
+	{156000, 324000, CEIL(156000 * 10, 9), CEIL(324000 * 10, 9), 0xD2,
+	 BRCM_RATE_36M},
+	/* MCS 29: SS 4, MOD: 64QAM, CR 2/3 */
+	{208000, 432000, CEIL(208000 * 10, 9), CEIL(432000 * 10, 9), 0xD9,
+	 BRCM_RATE_48M},
+	/* MCS 30: SS 4, MOD: 64QAM, CR 3/4 */
+	{234000, 486000, CEIL(234000 * 10, 9), CEIL(486000 * 10, 9), 0xDA,
+	 BRCM_RATE_54M},
+	/* MCS 31: SS 4, MOD: 64QAM, CR 5/6 */
+	{260000, 540000, CEIL(260000 * 10, 9), CEIL(540000 * 10, 9), 0xDB,
+	 BRCM_RATE_54M},
+	/* MCS 32: SS 1, MOD: BPSK,  CR 1/2 */
+	{0, 6000, 0, CEIL(6000 * 10, 9), 0x00, BRCM_RATE_6M},
+};
+
+/*
+ * phycfg for legacy OFDM frames: code rate, modulation scheme, spatial streams
+ * Number of spatial streams: always 1 other fields: refer to table 78 of
+ * section 17.3.2.2 of the original .11a standard
+ */
+struct legacy_phycfg {
+	u32 rate_ofdm;	/* ofdm mac rate */
+	/* phy ctl byte 3, code rate, modulation type, # of streams */
+	u8 tx_phy_ctl3;
+};
+
+/* Number of legacy_rate_cfg entries in the table */
+#define LEGACY_PHYCFG_TABLE_SIZE	12
+
+/*
+ * In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate
+ * Eventually MIMOPHY would also be converted to this format
+ * 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps
+ */
+static const struct
+legacy_phycfg legacy_phycfg_table[LEGACY_PHYCFG_TABLE_SIZE] = {
+	{BRCM_RATE_1M, 0x00},	/* CCK  1Mbps,  data rate  0 */
+	{BRCM_RATE_2M, 0x08},	/* CCK  2Mbps,  data rate  1 */
+	{BRCM_RATE_5M5, 0x10},	/* CCK  5.5Mbps,  data rate  2 */
+	{BRCM_RATE_11M, 0x18},	/* CCK  11Mbps,  data rate   3 */
+	/* OFDM  6Mbps,  code rate 1/2, BPSK,   1 spatial stream */
+	{BRCM_RATE_6M, 0x00},
+	/* OFDM  9Mbps,  code rate 3/4, BPSK,   1 spatial stream */
+	{BRCM_RATE_9M, 0x02},
+	/* OFDM  12Mbps, code rate 1/2, QPSK,   1 spatial stream */
+	{BRCM_RATE_12M, 0x08},
+	/* OFDM  18Mbps, code rate 3/4, QPSK,   1 spatial stream */
+	{BRCM_RATE_18M, 0x0A},
+	/* OFDM  24Mbps, code rate 1/2, 16-QAM, 1 spatial stream */
+	{BRCM_RATE_24M, 0x10},
+	/* OFDM  36Mbps, code rate 3/4, 16-QAM, 1 spatial stream */
+	{BRCM_RATE_36M, 0x12},
+	/* OFDM  48Mbps, code rate 2/3, 64-QAM, 1 spatial stream */
+	{BRCM_RATE_48M, 0x19},
+	/* OFDM  54Mbps, code rate 3/4, 64-QAM, 1 spatial stream */
+	{BRCM_RATE_54M, 0x1A},
+};
+
+/* Hardware rates (also encodes default basic rates) */
+
+const struct brcms_c_rateset cck_ofdm_mimo_rates = {
+	12,
+	/*  1b,   2b,   5.5b, 6,    9,    11b,  12,   18,   24,   36,   48, */
+	{ 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60,
+	/* 54 Mbps */
+	  0x6c},
+	0x00,
+	{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+const struct brcms_c_rateset ofdm_mimo_rates = {
+	8,
+	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
+	{ 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c},
+	0x00,
+	{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+/* Default ratesets that include MCS32 for 40BW channels */
+static const struct brcms_c_rateset cck_ofdm_40bw_mimo_rates = {
+	12,
+	/*  1b,   2b,   5.5b, 6,    9,    11b,  12,   18,   24,   36,   48 */
+	{ 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60,
+	/* 54 Mbps */
+	  0x6c},
+	0x00,
+	{ 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+static const struct brcms_c_rateset ofdm_40bw_mimo_rates = {
+	8,
+	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
+	{ 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c},
+	0x00,
+	{ 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+const struct brcms_c_rateset cck_ofdm_rates = {
+	12,
+	/*  1b,   2b, 5.5b, 6,    9,    11b,  12,   18,   24,   36,   48,*/
+	{ 0x82, 0x84, 0x8b, 0x0c, 0x12, 0x96, 0x18, 0x24, 0x30, 0x48, 0x60,
+	/*54 Mbps */
+	  0x6c},
+	0x00,
+	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+const struct brcms_c_rateset gphy_legacy_rates = {
+	4,
+	/*  1b,   2b,   5.5b, 11b Mbps */
+	{ 0x82, 0x84, 0x8b, 0x96},
+	0x00,
+	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+const struct brcms_c_rateset ofdm_rates = {
+	8,
+	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
+	{ 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c},
+	0x00,
+	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+const struct brcms_c_rateset cck_rates = {
+	4,
+	/*  1b,   2b,   5.5,  11 Mbps */
+	{ 0x82, 0x84, 0x0b, 0x16},
+	0x00,
+	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	  0x00, 0x00, 0x00, 0x00, 0x00}
+};
+
+/* check if rateset is valid.
+ * if check_brate is true, rateset without a basic rate is considered NOT valid.
+ */
+static bool brcms_c_rateset_valid(struct brcms_c_rateset *rs, bool check_brate)
+{
+	uint idx;
+
+	if (!rs->count)
+		return false;
+
+	if (!check_brate)
+		return true;
+
+	/* error if no basic rates */
+	for (idx = 0; idx < rs->count; idx++) {
+		if (rs->rates[idx] & BRCMS_RATE_FLAG)
+			return true;
+	}
+	return false;
+}
+
+void brcms_c_rateset_mcs_upd(struct brcms_c_rateset *rs, u8 txstreams)
+{
+	int i;
+	for (i = txstreams; i < MAX_STREAMS_SUPPORTED; i++)
+		rs->mcs[i] = 0;
+}
+
+/*
+ * filter based on hardware rateset, and sort filtered rateset with basic
+ * bit(s) preserved, and check if resulting rateset is valid.
+*/
+bool
+brcms_c_rate_hwrs_filter_sort_validate(struct brcms_c_rateset *rs,
+				   const struct brcms_c_rateset *hw_rs,
+				   bool check_brate, u8 txstreams)
+{
+	u8 rateset[BRCM_MAXRATE + 1];
+	u8 r;
+	uint count;
+	uint i;
+
+	memset(rateset, 0, sizeof(rateset));
+	count = rs->count;
+
+	for (i = 0; i < count; i++) {
+		/* mask off "basic rate" bit, BRCMS_RATE_FLAG */
+		r = (int)rs->rates[i] & BRCMS_RATE_MASK;
+		if ((r > BRCM_MAXRATE) || (rate_info[r] == 0))
+			continue;
+		rateset[r] = rs->rates[i];	/* preserve basic bit! */
+	}
+
+	/* fill out the rates in order, looking at only supported rates */
+	count = 0;
+	for (i = 0; i < hw_rs->count; i++) {
+		r = hw_rs->rates[i] & BRCMS_RATE_MASK;
+		if (rateset[r])
+			rs->rates[count++] = rateset[r];
+	}
+
+	rs->count = count;
+
+	/* only set the mcs rate bit if the equivalent hw mcs bit is set */
+	for (i = 0; i < MCSSET_LEN; i++)
+		rs->mcs[i] = (rs->mcs[i] & hw_rs->mcs[i]);
+
+	if (brcms_c_rateset_valid(rs, check_brate))
+		return true;
+	else
+		return false;
+}
+
+/* calculate the rate of a rx'd frame and return it as a ratespec */
+u32 brcms_c_compute_rspec(struct d11rxhdr *rxh, u8 *plcp)
+{
+	int phy_type;
+	u32 rspec = PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT;
+
+	phy_type =
+	    ((rxh->RxChan & RXS_CHAN_PHYTYPE_MASK) >> RXS_CHAN_PHYTYPE_SHIFT);
+
+	if ((phy_type == PHY_TYPE_N) || (phy_type == PHY_TYPE_SSN) ||
+	    (phy_type == PHY_TYPE_LCN) || (phy_type == PHY_TYPE_HT)) {
+		switch (rxh->PhyRxStatus_0 & PRXS0_FT_MASK) {
+		case PRXS0_CCK:
+			rspec =
+				cck_phy2mac_rate(
+				((struct cck_phy_hdr *) plcp)->signal);
+			break;
+		case PRXS0_OFDM:
+			rspec =
+			    ofdm_phy2mac_rate(
+				((struct ofdm_phy_hdr *) plcp)->rlpt[0]);
+			break;
+		case PRXS0_PREN:
+			rspec = (plcp[0] & MIMO_PLCP_MCS_MASK) | RSPEC_MIMORATE;
+			if (plcp[0] & MIMO_PLCP_40MHZ) {
+				/* indicate rspec is for 40 MHz mode */
+				rspec &= ~RSPEC_BW_MASK;
+				rspec |= (PHY_TXC1_BW_40MHZ << RSPEC_BW_SHIFT);
+			}
+			break;
+		case PRXS0_STDN:
+			/* fallthru */
+		default:
+			/* not supported, error condition */
+			break;
+		}
+		if (plcp3_issgi(plcp[3]))
+			rspec |= RSPEC_SHORT_GI;
+	} else
+	    if ((phy_type == PHY_TYPE_A) || (rxh->PhyRxStatus_0 & PRXS0_OFDM))
+		rspec = ofdm_phy2mac_rate(
+				((struct ofdm_phy_hdr *) plcp)->rlpt[0]);
+	else
+		rspec = cck_phy2mac_rate(
+				((struct cck_phy_hdr *) plcp)->signal);
+
+	return rspec;
+}
+
+/* copy rateset src to dst as-is (no masking or sorting) */
+void brcms_c_rateset_copy(const struct brcms_c_rateset *src,
+			  struct brcms_c_rateset *dst)
+{
+	memcpy(dst, src, sizeof(struct brcms_c_rateset));
+}
+
+/*
+ * Copy and selectively filter one rateset to another.
+ * 'basic_only' means only copy basic rates.
+ * 'rates' indicates cck (11b) and ofdm rates combinations.
+ *    - 0: cck and ofdm
+ *    - 1: cck only
+ *    - 2: ofdm only
+ * 'xmask' is the copy mask (typically 0x7f or 0xff).
+ */
+void
+brcms_c_rateset_filter(struct brcms_c_rateset *src, struct brcms_c_rateset *dst,
+		       bool basic_only, u8 rates, uint xmask, bool mcsallow)
+{
+	uint i;
+	uint r;
+	uint count;
+
+	count = 0;
+	for (i = 0; i < src->count; i++) {
+		r = src->rates[i];
+		if (basic_only && !(r & BRCMS_RATE_FLAG))
+			continue;
+		if (rates == BRCMS_RATES_CCK &&
+		    is_ofdm_rate((r & BRCMS_RATE_MASK)))
+			continue;
+		if (rates == BRCMS_RATES_OFDM &&
+		    is_cck_rate((r & BRCMS_RATE_MASK)))
+			continue;
+		dst->rates[count++] = r & xmask;
+	}
+	dst->count = count;
+	dst->htphy_membership = src->htphy_membership;
+
+	if (mcsallow && rates != BRCMS_RATES_CCK)
+		memcpy(&dst->mcs[0], &src->mcs[0], MCSSET_LEN);
+	else
+		brcms_c_rateset_mcs_clear(dst);
+}
+
+/* select rateset for a given phy_type and bandtype and filter it, sort it
+ * and fill rs_tgt with result
+ */
+void
+brcms_c_rateset_default(struct brcms_c_rateset *rs_tgt,
+			const struct brcms_c_rateset *rs_hw,
+			uint phy_type, int bandtype, bool cck_only,
+			uint rate_mask, bool mcsallow, u8 bw, u8 txstreams)
+{
+	const struct brcms_c_rateset *rs_dflt;
+	struct brcms_c_rateset rs_sel;
+	if ((PHYTYPE_IS(phy_type, PHY_TYPE_HT)) ||
+	    (PHYTYPE_IS(phy_type, PHY_TYPE_N)) ||
+	    (PHYTYPE_IS(phy_type, PHY_TYPE_LCN)) ||
+	    (PHYTYPE_IS(phy_type, PHY_TYPE_SSN))) {
+		if (bandtype == BRCM_BAND_5G)
+			rs_dflt = (bw == BRCMS_20_MHZ ?
+				   &ofdm_mimo_rates : &ofdm_40bw_mimo_rates);
+		else
+			rs_dflt = (bw == BRCMS_20_MHZ ?
+				   &cck_ofdm_mimo_rates :
+				   &cck_ofdm_40bw_mimo_rates);
+	} else if (PHYTYPE_IS(phy_type, PHY_TYPE_LP)) {
+		rs_dflt = (bandtype == BRCM_BAND_5G) ?
+			  &ofdm_rates : &cck_ofdm_rates;
+	} else if (PHYTYPE_IS(phy_type, PHY_TYPE_A)) {
+		rs_dflt = &ofdm_rates;
+	} else if (PHYTYPE_IS(phy_type, PHY_TYPE_G)) {
+		rs_dflt = &cck_ofdm_rates;
+	} else {
+		/* should not happen, error condition */
+		rs_dflt = &cck_rates;	/* force cck */
+	}
+
+	/* if hw rateset is not supplied, assign selected rateset to it */
+	if (!rs_hw)
+		rs_hw = rs_dflt;
+
+	brcms_c_rateset_copy(rs_dflt, &rs_sel);
+	brcms_c_rateset_mcs_upd(&rs_sel, txstreams);
+	brcms_c_rateset_filter(&rs_sel, rs_tgt, false,
+			   cck_only ? BRCMS_RATES_CCK : BRCMS_RATES_CCK_OFDM,
+			   rate_mask, mcsallow);
+	brcms_c_rate_hwrs_filter_sort_validate(rs_tgt, rs_hw, false,
+					   mcsallow ? txstreams : 1);
+}
+
+s16 brcms_c_rate_legacy_phyctl(uint rate)
+{
+	uint i;
+	for (i = 0; i < LEGACY_PHYCFG_TABLE_SIZE; i++)
+		if (rate == legacy_phycfg_table[i].rate_ofdm)
+			return legacy_phycfg_table[i].tx_phy_ctl3;
+
+	return -1;
+}
+
+void brcms_c_rateset_mcs_clear(struct brcms_c_rateset *rateset)
+{
+	uint i;
+	for (i = 0; i < MCSSET_LEN; i++)
+		rateset->mcs[i] = 0;
+}
+
+void brcms_c_rateset_mcs_build(struct brcms_c_rateset *rateset, u8 txstreams)
+{
+	memcpy(&rateset->mcs[0], &cck_ofdm_mimo_rates.mcs[0], MCSSET_LEN);
+	brcms_c_rateset_mcs_upd(rateset, txstreams);
+}
+
+/* Based on bandwidth passed, allow/disallow MCS 32 in the rateset */
+void brcms_c_rateset_bw_mcs_filter(struct brcms_c_rateset *rateset, u8 bw)
+{
+	if (bw == BRCMS_40_MHZ)
+		setbit(rateset->mcs, 32);
+	else
+		clrbit(rateset->mcs, 32);
+}