1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright (c) 2021 pureLiFi
  4 */
  5
  6#ifndef PLFXLC_MAC_H
  7#define PLFXLC_MAC_H
  8
  9#include <linux/kernel.h>
 10#include <net/mac80211.h>
 11
 12#include "chip.h"
 13
 14#define PURELIFI_CCK                  0x00
 15#define PURELIFI_OFDM                 0x10
 16#define PURELIFI_CCK_PREA_SHORT       0x20
 17
 18#define PURELIFI_OFDM_PLCP_RATE_6M	0xb
 19#define PURELIFI_OFDM_PLCP_RATE_9M	0xf
 20#define PURELIFI_OFDM_PLCP_RATE_12M	0xa
 21#define PURELIFI_OFDM_PLCP_RATE_18M	0xe
 22#define PURELIFI_OFDM_PLCP_RATE_24M	0x9
 23#define PURELIFI_OFDM_PLCP_RATE_36M	0xd
 24#define PURELIFI_OFDM_PLCP_RATE_48M	0x8
 25#define PURELIFI_OFDM_PLCP_RATE_54M	0xc
 26
 27#define PURELIFI_CCK_RATE_1M	(PURELIFI_CCK | 0x00)
 28#define PURELIFI_CCK_RATE_2M	(PURELIFI_CCK | 0x01)
 29#define PURELIFI_CCK_RATE_5_5M	(PURELIFI_CCK | 0x02)
 30#define PURELIFI_CCK_RATE_11M	(PURELIFI_CCK | 0x03)
 31#define PURELIFI_OFDM_RATE_6M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_6M)
 32#define PURELIFI_OFDM_RATE_9M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_9M)
 33#define PURELIFI_OFDM_RATE_12M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_12M)
 34#define PURELIFI_OFDM_RATE_18M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_18M)
 35#define PURELIFI_OFDM_RATE_24M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_24M)
 36#define PURELIFI_OFDM_RATE_36M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_36M)
 37#define PURELIFI_OFDM_RATE_48M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_48M)
 38#define PURELIFI_OFDM_RATE_54M	(PURELIFI_OFDM | PURELIFI_OFDM_PLCP_RATE_54M)
 39
 40#define PURELIFI_RX_ERROR		0x80
 41#define PURELIFI_RX_CRC32_ERROR		0x10
 42
 43#define PLF_REGDOMAIN_FCC	0x10
 44#define PLF_REGDOMAIN_IC	0x20
 45#define PLF_REGDOMAIN_ETSI	0x30
 46#define PLF_REGDOMAIN_SPAIN	0x31
 47#define PLF_REGDOMAIN_FRANCE	0x32
 48#define PLF_REGDOMAIN_JAPAN_2	0x40
 49#define PLF_REGDOMAIN_JAPAN	0x41
 50#define PLF_REGDOMAIN_JAPAN_3	0x49
 51
 52#define PLF_RX_ERROR		0x80
 53#define PLF_RX_CRC32_ERROR	0x10
 54
 55enum {
 56	MODULATION_RATE_BPSK_1_2 = 0,
 57	MODULATION_RATE_BPSK_3_4,
 58	MODULATION_RATE_QPSK_1_2,
 59	MODULATION_RATE_QPSK_3_4,
 60	MODULATION_RATE_QAM16_1_2,
 61	MODULATION_RATE_QAM16_3_4,
 62	MODULATION_RATE_QAM64_1_2,
 63	MODULATION_RATE_QAM64_3_4,
 64	MODULATION_RATE_AUTO,
 65	MODULATION_RATE_NUM
 66};
 67
 68#define plfxlc_mac_dev(mac) plfxlc_chip_dev(&(mac)->chip)
 69
 70#define PURELIFI_MAC_STATS_BUFFER_SIZE 16
 71#define PURELIFI_MAC_MAX_ACK_WAITERS 50
 72
 73struct plfxlc_ctrlset {
 74	/* id should be plf_usb_req_enum */
 75	__be32		id;
 76	__be32		len;
 77	u8		modulation;
 78	u8		control;
 79	u8		service;
 80	u8		pad;
 81	__le16		packet_length;
 82	__le16		current_length;
 83	__le16		next_frame_length;
 84	__le16		tx_length;
 85	__be32		payload_len_nw;
 86} __packed;
 87
 88/* overlay */
 89struct plfxlc_header {
 90	struct plfxlc_ctrlset plf_ctrl;
 91	u32    frametype;
 92	u8    *dmac;
 93} __packed;
 94
 95struct tx_status {
 96	u8 type;
 97	u8 id;
 98	u8 rate;
 99	u8 pad;
100	u8 mac[ETH_ALEN];
101	u8 retry;
102	u8 failure;
103} __packed;
104
105struct beacon {
106	struct delayed_work watchdog_work;
107	struct sk_buff *cur_beacon;
108	unsigned long last_update;
109	u16 interval;
110	u8 period;
111};
112
113enum plfxlc_device_flags {
114	PURELIFI_DEVICE_RUNNING,
115};
116
117struct plfxlc_mac {
118	struct ieee80211_hw *hw;
119	struct ieee80211_vif *vif;
120	struct beacon beacon;
121	struct work_struct set_rts_cts_work;
122	struct work_struct process_intr;
123	struct plfxlc_mc_hash multicast_hash;
124	struct sk_buff_head ack_wait_queue;
125	struct ieee80211_channel channels[14];
126	struct ieee80211_rate rates[12];
127	struct ieee80211_supported_band band;
128	struct plfxlc_chip chip;
129	spinlock_t lock; /* lock for mac data */
130	u8 intr_buffer[USB_MAX_EP_INT_BUFFER];
131	char serial_number[PURELIFI_SERIAL_LEN];
132	unsigned char hw_address[ETH_ALEN];
133	u8 default_regdomain;
134	unsigned long flags;
135	bool pass_failed_fcs;
136	bool pass_ctrl;
137	bool ack_pending;
138	int ack_signal;
139	int associated;
140	u8 regdomain;
141	u8 channel;
142	int type;
143	u64 crc_errors;
144	u64 rssi;
145};
146
147static inline struct plfxlc_mac *
148plfxlc_hw_mac(struct ieee80211_hw *hw)
149{
150	return hw->priv;
151}
152
153static inline struct plfxlc_mac *
154plfxlc_chip_to_mac(struct plfxlc_chip *chip)
155{
156	return container_of(chip, struct plfxlc_mac, chip);
157}
158
159static inline struct plfxlc_mac *
160plfxlc_usb_to_mac(struct plfxlc_usb *usb)
161{
162	return plfxlc_chip_to_mac(plfxlc_usb_to_chip(usb));
163}
164
165static inline u8 *plfxlc_mac_get_perm_addr(struct plfxlc_mac *mac)
166{
167	return mac->hw->wiphy->perm_addr;
168}
169
170struct ieee80211_hw *plfxlc_mac_alloc_hw(struct usb_interface *intf);
171void plfxlc_mac_release(struct plfxlc_mac *mac);
172
173int plfxlc_mac_preinit_hw(struct ieee80211_hw *hw, const u8 *hw_address);
174int plfxlc_mac_init_hw(struct ieee80211_hw *hw);
175
176int plfxlc_mac_rx(struct ieee80211_hw *hw, const u8 *buffer,
177		  unsigned int length);
178void plfxlc_mac_tx_failed(struct urb *urb);
179void plfxlc_mac_tx_to_dev(struct sk_buff *skb, int error);
180int plfxlc_op_start(struct ieee80211_hw *hw);
181void plfxlc_op_stop(struct ieee80211_hw *hw);
182int plfxlc_restore_settings(struct plfxlc_mac *mac);
183
184#endif /* PLFXLC_MAC_H */