1 // SPDX-License-Identifier: GPL-2.0-only
5  * Copyright (c) 1998-2007 Texas Instruments Incorporated
25 	rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr;  in wl1251_rx_header()
26 	if (wl->rx_current_buffer)  in wl1251_rx_header()
27 		rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size;  in wl1251_rx_header()
42 	status->band = NL80211_BAND_2GHZ;  in wl1251_rx_status()
43 	status->mactime = desc->timestamp;  in wl1251_rx_status()
53 	if ((wl->bss_type == BSS_TYPE_IBSS) && beacon) {  in wl1251_rx_status()
56 			status->mactime = mactime;  in wl1251_rx_status()
59 	status->signal = desc->rssi;  in wl1251_rx_status()
63 	 * the values don't make any sense  in wl1251_rx_status()
65 	wl->noise = desc->rssi - desc->snr / 2;  in wl1251_rx_status()
67 	status->freq = ieee80211_channel_to_frequency(desc->channel,  in wl1251_rx_status()
68 						      status->band);  in wl1251_rx_status()
70 	status->flag |= RX_FLAG_MACTIME_START;  in wl1251_rx_status()
72 	if (!wl->monitor_present && (desc->flags & RX_DESC_ENCRYPTION_MASK)) {  in wl1251_rx_status()
73 		status->flag |= RX_FLAG_IV_STRIPPED | RX_FLAG_MMIC_STRIPPED;  in wl1251_rx_status()
75 		if (likely(!(desc->flags & RX_DESC_DECRYPT_FAIL)))  in wl1251_rx_status()
76 			status->flag |= RX_FLAG_DECRYPTED;  in wl1251_rx_status()
78 		if (unlikely(desc->flags & RX_DESC_MIC_FAIL))  in wl1251_rx_status()
79 			status->flag |= RX_FLAG_MMIC_ERROR;  in wl1251_rx_status()
82 	if (unlikely(!(desc->flags & RX_DESC_VALID_FCS)))  in wl1251_rx_status()
83 		status->flag |= RX_FLAG_FAILED_FCS_CRC;  in wl1251_rx_status()
85 	switch (desc->rate) {  in wl1251_rx_status()
88 		status->rate_idx = 1;  in wl1251_rx_status()
91 		status->rate_idx = 2;  in wl1251_rx_status()
94 		status->rate_idx = 3;  in wl1251_rx_status()
97 		status->rate_idx = 4;  in wl1251_rx_status()
100 		status->rate_idx = 5;  in wl1251_rx_status()
103 		status->rate_idx = 7;  in wl1251_rx_status()
106 		status->rate_idx = 8;  in wl1251_rx_status()
109 		status->rate_idx = 9;  in wl1251_rx_status()
112 		status->rate_idx = 10;  in wl1251_rx_status()
115 		status->rate_idx = 11;  in wl1251_rx_status()
120 	if (desc->rate == RATE_1MBPS) {  in wl1251_rx_status()
121 		if (!(desc->mod_pre & OFDM_RATE_BIT))  in wl1251_rx_status()
122 			/* CCK -> RATE_1MBPS */  in wl1251_rx_status()
123 			status->rate_idx = 0;  in wl1251_rx_status()
125 			/* OFDM -> RATE_12MBPS */  in wl1251_rx_status()
126 			status->rate_idx = 6;  in wl1251_rx_status()
129 	if (desc->mod_pre & SHORT_PREAMBLE_BIT)  in wl1251_rx_status()
130 		status->enc_flags |= RX_ENC_FLAG_SHORTPRE;  in wl1251_rx_status()
142 	length = WL1251_RX_ALIGN(desc->length  - PLCP_HEADER_LENGTH);  in wl1251_rx_body()
143 	curr_id = (desc->flags & RX_DESC_SEQNUM_MASK) >> RX_DESC_PACKETID_SHIFT;  in wl1251_rx_body()
144 	last_id_inc = (wl->rx_last_id + 1) % (RX_MAX_PACKET_ID + 1);  in wl1251_rx_body()
149 		wl->rx_last_id = curr_id;  in wl1251_rx_body()
151 		wl->rx_last_id = last_id_inc;  in wl1251_rx_body()
154 	rx_packet_ring_addr = wl->data_path->rx_packet_ring_addr +  in wl1251_rx_body()
156 	if (wl->rx_current_buffer)  in wl1251_rx_body()
157 		rx_packet_ring_addr += wl->data_path->rx_packet_ring_chunk_size;  in wl1251_rx_body()
169 	skb_trim(skb, desc->length - PLCP_HEADER_LENGTH);  in wl1251_rx_body()
171 	fc = (u16 *)skb->data;  in wl1251_rx_body()
178 	wl1251_debug(DEBUG_RX, "rx skb 0x%p: %d B %s", skb, skb->len,  in wl1251_rx_body()
182 	ieee80211_rx_ni(wl->hw, skb);  in wl1251_rx_body()
189 	if (wl->rx_current_buffer) {  in wl1251_rx_ack()
200 	wl->rx_current_buffer = !wl->rx_current_buffer;  in wl1251_rx_ack()
208 	if (wl->state != WL1251_STATE_ON)  in wl1251_rx()
211 	rx_desc = wl->rx_descriptor;  in wl1251_rx()