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
55 enum {
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
73 struct 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 */
89 struct plfxlc_header {
90 struct plfxlc_ctrlset plf_ctrl;
91 u32 frametype;
92 u8 *dmac;
93 } __packed;
94
95 struct 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
105 struct 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
113 enum plfxlc_device_flags {
114 PURELIFI_DEVICE_RUNNING,
115 };
116
117 struct 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
147 static inline struct plfxlc_mac *
plfxlc_hw_mac(struct ieee80211_hw * hw)148 plfxlc_hw_mac(struct ieee80211_hw *hw)
149 {
150 return hw->priv;
151 }
152
153 static inline struct plfxlc_mac *
plfxlc_chip_to_mac(struct plfxlc_chip * chip)154 plfxlc_chip_to_mac(struct plfxlc_chip *chip)
155 {
156 return container_of(chip, struct plfxlc_mac, chip);
157 }
158
159 static inline struct plfxlc_mac *
plfxlc_usb_to_mac(struct plfxlc_usb * usb)160 plfxlc_usb_to_mac(struct plfxlc_usb *usb)
161 {
162 return plfxlc_chip_to_mac(plfxlc_usb_to_chip(usb));
163 }
164
plfxlc_mac_get_perm_addr(struct plfxlc_mac * mac)165 static inline u8 *plfxlc_mac_get_perm_addr(struct plfxlc_mac *mac)
166 {
167 return mac->hw->wiphy->perm_addr;
168 }
169
170 struct ieee80211_hw *plfxlc_mac_alloc_hw(struct usb_interface *intf);
171 void plfxlc_mac_release(struct plfxlc_mac *mac);
172
173 int plfxlc_mac_preinit_hw(struct ieee80211_hw *hw, const u8 *hw_address);
174 int plfxlc_mac_init_hw(struct ieee80211_hw *hw);
175
176 int plfxlc_mac_rx(struct ieee80211_hw *hw, const u8 *buffer,
177 unsigned int length);
178 void plfxlc_mac_tx_failed(struct urb *urb);
179 void plfxlc_mac_tx_to_dev(struct sk_buff *skb, int error);
180 int plfxlc_op_start(struct ieee80211_hw *hw);
181 void plfxlc_op_stop(struct ieee80211_hw *hw);
182 int plfxlc_restore_settings(struct plfxlc_mac *mac);
183
184 #endif /* PLFXLC_MAC_H */
185