cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/broadcom/brcm80211/brcmsmac/rate.c

/*
 * 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; }

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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; }

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/* * 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; }

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/* 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; }

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/* 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)); }

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/* * 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); }

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/* 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); }

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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; }

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void brcms_c_rateset_mcs_clear(struct brcms_c_rateset *rateset) { uint i; for (i = 0; i < MCSSET_LEN; i++) rateset->mcs[i] = 0; }

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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); }

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PersonTokensPropCommitsCommitProp
Arend Van Spriel41100.00%1100.00%
Total41100.00%1100.00%

/* 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); }

Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel38100.00%1100.00%
Total38100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Arend Van Spriel3058100.00%1100.00%
Total3058100.00%1100.00%
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