22 #include "rate.h"
25  * Rate info per rate: It tells whether a rate is ofdm or not and its phy_rate
146  * phycfg for legacy OFDM frames: code rate, modulation scheme, spatial streams
151 	u32 rate_ofdm;	/* ofdm mac rate */
152 	/* phy ctl byte 3, code rate, modulation type, # of streams */
160  * In CCK mode LPPHY overloads OFDM Modulation bits with CCK Data Rate
166 	{BRCM_RATE_1M, 0x00},	/* CCK  1Mbps,  data rate  0 */
167 	{BRCM_RATE_2M, 0x08},	/* CCK  2Mbps,  data rate  1 */
168 	{BRCM_RATE_5M5, 0x10},	/* CCK  5.5Mbps,  data rate  2 */
169 	{BRCM_RATE_11M, 0x18},	/* CCK  11Mbps,  data rate   3 */
170 	/* OFDM  6Mbps,  code rate 1/2, BPSK,   1 spatial stream */
172 	/* OFDM  9Mbps,  code rate 3/4, BPSK,   1 spatial stream */
174 	/* OFDM  12Mbps, code rate 1/2, QPSK,   1 spatial stream */
176 	/* OFDM  18Mbps, code rate 3/4, QPSK,   1 spatial stream */
178 	/* OFDM  24Mbps, code rate 1/2, 16-QAM, 1 spatial stream */
180 	/* OFDM  36Mbps, code rate 3/4, 16-QAM, 1 spatial stream */
182 	/* OFDM  48Mbps, code rate 2/3, 64-QAM, 1 spatial stream */
184 	/* OFDM  54Mbps, code rate 3/4, 64-QAM, 1 spatial stream */
192 	/*  1b,   2b,   5.5b, 6,    9,    11b,  12,   18,   24,   36,   48, */
203 	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
213 	/*  1b,   2b,   5.5b, 6,    9,    11b,  12,   18,   24,   36,   48 */
224 	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
233 	/*  1b,   2b, 5.5b, 6,    9,    11b,  12,   18,   24,   36,   48,*/
244 	/*  1b,   2b,   5.5b, 11b Mbps */
253 	/*  6b,   9,    12b,  18,   24b,  36,   48,   54 Mbps */
262 	/*  1b,   2b,   5.5,  11 Mbps */
270  * if check_brate is true, rateset without a basic rate is considered NOT valid.
276 	if (!rs->count)  in brcms_c_rateset_valid()
283 	for (idx = 0; idx < rs->count; idx++) {  in brcms_c_rateset_valid()
284 		if (rs->rates[idx] & BRCMS_RATE_FLAG)  in brcms_c_rateset_valid()
294 		rs->mcs[i] = 0;  in brcms_c_rateset_mcs_upd()
312 	count = rs->count;  in brcms_c_rate_hwrs_filter_sort_validate()
315 		/* mask off "basic rate" bit, BRCMS_RATE_FLAG */  in brcms_c_rate_hwrs_filter_sort_validate()
316 		r = (int)rs->rates[i] & BRCMS_RATE_MASK;  in brcms_c_rate_hwrs_filter_sort_validate()
319 		rateset[r] = rs->rates[i];	/* preserve basic bit! */  in brcms_c_rate_hwrs_filter_sort_validate()
324 	for (i = 0; i < hw_rs->count; i++) {  in brcms_c_rate_hwrs_filter_sort_validate()
325 		r = hw_rs->rates[i] & BRCMS_RATE_MASK;  in brcms_c_rate_hwrs_filter_sort_validate()
327 			rs->rates[count++] = rateset[r];  in brcms_c_rate_hwrs_filter_sort_validate()
330 	rs->count = count;  in brcms_c_rate_hwrs_filter_sort_validate()
332 	/* only set the mcs rate bit if the equivalent hw mcs bit is set */  in brcms_c_rate_hwrs_filter_sort_validate()
334 		rs->mcs[i] = (rs->mcs[i] & hw_rs->mcs[i]);  in brcms_c_rate_hwrs_filter_sort_validate()
342 /* calculate the rate of a rx'd frame and return it as a ratespec */
349 	    ((rxh->RxChan & RXS_CHAN_PHYTYPE_MASK) >> RXS_CHAN_PHYTYPE_SHIFT);  in brcms_c_compute_rspec()
353 		switch (rxh->PhyRxStatus_0 & PRXS0_FT_MASK) {  in brcms_c_compute_rspec()
357 				((struct cck_phy_hdr *) plcp)->signal);  in brcms_c_compute_rspec()
362 				((struct ofdm_phy_hdr *) plcp)->rlpt[0]);  in brcms_c_compute_rspec()
381 	    if ((phy_type == PHY_TYPE_A) || (rxh->PhyRxStatus_0 & PRXS0_OFDM))  in brcms_c_compute_rspec()
383 				((struct ofdm_phy_hdr *) plcp)->rlpt[0]);  in brcms_c_compute_rspec()
386 				((struct cck_phy_hdr *) plcp)->signal);  in brcms_c_compute_rspec()
391 /* copy rateset src to dst as-is (no masking or sorting) */
401  * 'rates' indicates cck (11b) and ofdm rates combinations.
402  *    - 0: cck and ofdm
403  *    - 1: cck only
404  *    - 2: ofdm only
416 	for (i = 0; i < src->count; i++) {  in brcms_c_rateset_filter()
417 		r = src->rates[i];  in brcms_c_rateset_filter()
426 		dst->rates[count++] = r & xmask;  in brcms_c_rateset_filter()
428 	dst->count = count;  in brcms_c_rateset_filter()
429 	dst->htphy_membership = src->htphy_membership;  in brcms_c_rateset_filter()
432 		memcpy(&dst->mcs[0], &src->mcs[0], MCSSET_LEN);  in brcms_c_rateset_filter()
484 s16 brcms_c_rate_legacy_phyctl(uint rate)  in brcms_c_rate_legacy_phyctl()  argument
488 		if (rate == legacy_phycfg_table[i].rate_ofdm)  in brcms_c_rate_legacy_phyctl()
491 	return -1;  in brcms_c_rate_legacy_phyctl()
498 		rateset->mcs[i] = 0;  in brcms_c_rateset_mcs_clear()
503 	memcpy(&rateset->mcs[0], &cck_ofdm_mimo_rates.mcs[0], MCSSET_LEN);  in brcms_c_rateset_mcs_build()
511 		setbit(rateset->mcs, 32);  in brcms_c_rateset_bw_mcs_filter()
513 		clrbit(rateset->mcs, 32);  in brcms_c_rateset_bw_mcs_filter()