1 /*
2  * Shared defines for all mac80211 Prism54 code
3  *
4  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
5  *
6  * Based on the islsm (softmac prism54) driver, which is:
7  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13 
14 #ifndef P54_H
15 #define P54_H
16 
17 #ifdef CONFIG_P54_LEDS
18 #include <linux/leds.h>
19 #endif /* CONFIG_P54_LEDS */
20 
21 #define ISL38XX_DEV_FIRMWARE_ADDR 0x20000
22 
23 #define BR_CODE_MIN			0x80000000
24 #define BR_CODE_COMPONENT_ID		0x80000001
25 #define BR_CODE_COMPONENT_VERSION	0x80000002
26 #define BR_CODE_DEPENDENT_IF		0x80000003
27 #define BR_CODE_EXPOSED_IF		0x80000004
28 #define BR_CODE_DESCR			0x80000101
29 #define BR_CODE_MAX			0x8FFFFFFF
30 #define BR_CODE_END_OF_BRA		0xFF0000FF
31 #define LEGACY_BR_CODE_END_OF_BRA	0xFFFFFFFF
32 
33 struct bootrec {
34 	__le32 code;
35 	__le32 len;
36 	u32 data[10];
37 } __packed;
38 
39 /* Interface role definitions */
40 #define BR_INTERFACE_ROLE_SERVER	0x0000
41 #define BR_INTERFACE_ROLE_CLIENT	0x8000
42 
43 #define BR_DESC_PRIV_CAP_WEP		BIT(0)
44 #define BR_DESC_PRIV_CAP_TKIP		BIT(1)
45 #define BR_DESC_PRIV_CAP_MICHAEL	BIT(2)
46 #define BR_DESC_PRIV_CAP_CCX_CP		BIT(3)
47 #define BR_DESC_PRIV_CAP_CCX_MIC	BIT(4)
48 #define BR_DESC_PRIV_CAP_AESCCMP	BIT(5)
49 
50 struct bootrec_desc {
51 	__le16 modes;
52 	__le16 flags;
53 	__le32 rx_start;
54 	__le32 rx_end;
55 	u8 headroom;
56 	u8 tailroom;
57 	u8 tx_queues;
58 	u8 tx_depth;
59 	u8 privacy_caps;
60 	u8 rx_keycache_size;
61 	u8 time_size;
62 	u8 padding;
63 	u8 rates[16];
64 	u8 padding2[4];
65 	__le16 rx_mtu;
66 } __packed;
67 
68 #define FW_FMAC 0x464d4143
69 #define FW_LM86 0x4c4d3836
70 #define FW_LM87 0x4c4d3837
71 #define FW_LM20 0x4c4d3230
72 
73 struct bootrec_comp_id {
74 	__le32 fw_variant;
75 } __packed;
76 
77 struct bootrec_comp_ver {
78 	char fw_version[24];
79 } __packed;
80 
81 struct bootrec_end {
82 	__le16 crc;
83 	u8 padding[2];
84 	u8 md5[16];
85 } __packed;
86 
87 /* provide 16 bytes for the transport back-end */
88 #define P54_TX_INFO_DATA_SIZE		16
89 
90 /* stored in ieee80211_tx_info's rate_driver_data */
91 struct p54_tx_info {
92 	u32 start_addr;
93 	u32 end_addr;
94 	union {
95 		void *data[P54_TX_INFO_DATA_SIZE / sizeof(void *)];
96 		struct {
97 			u32 extra_len;
98 		};
99 	};
100 };
101 
102 #define P54_MAX_CTRL_FRAME_LEN		0x1000
103 
104 #define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop)	\
105 do {								\
106 	queue.aifs = cpu_to_le16(ai_fs);			\
107 	queue.cwmin = cpu_to_le16(cw_min);			\
108 	queue.cwmax = cpu_to_le16(cw_max);			\
109 	queue.txop = cpu_to_le16(_txop);			\
110 } while (0)
111 
112 struct p54_edcf_queue_param {
113 	__le16 aifs;
114 	__le16 cwmin;
115 	__le16 cwmax;
116 	__le16 txop;
117 } __packed;
118 
119 struct p54_rssi_db_entry {
120 	u16 freq;
121 	s16 mul;
122 	s16 add;
123 	s16 longbow_unkn;
124 	s16 longbow_unk2;
125 };
126 
127 struct p54_cal_database {
128 	size_t entries;
129 	size_t entry_size;
130 	size_t offset;
131 	size_t len;
132 	u8 data[0];
133 };
134 
135 #define EEPROM_READBACK_LEN 0x3fc
136 
137 enum fw_state {
138 	FW_STATE_OFF,
139 	FW_STATE_BOOTING,
140 	FW_STATE_READY,
141 	FW_STATE_RESET,
142 	FW_STATE_RESETTING,
143 };
144 
145 #ifdef CONFIG_P54_LEDS
146 
147 #define P54_LED_MAX_NAME_LEN 31
148 
149 struct p54_led_dev {
150 	struct ieee80211_hw *hw_dev;
151 	struct led_classdev led_dev;
152 	char name[P54_LED_MAX_NAME_LEN + 1];
153 
154 	unsigned int toggled;
155 	unsigned int index;
156 	unsigned int registered;
157 };
158 
159 #endif /* CONFIG_P54_LEDS */
160 
161 struct p54_tx_queue_stats {
162 	unsigned int len;
163 	unsigned int limit;
164 	unsigned int count;
165 };
166 
167 struct p54_common {
168 	struct ieee80211_hw *hw;
169 	struct ieee80211_vif *vif;
170 	void (*tx)(struct ieee80211_hw *dev, struct sk_buff *skb);
171 	int (*open)(struct ieee80211_hw *dev);
172 	void (*stop)(struct ieee80211_hw *dev);
173 	struct sk_buff_head tx_pending;
174 	struct sk_buff_head tx_queue;
175 	struct mutex conf_mutex;
176 
177 	/* memory management (as seen by the firmware) */
178 	u32 rx_start;
179 	u32 rx_end;
180 	u16 rx_mtu;
181 	u8 headroom;
182 	u8 tailroom;
183 
184 	/* firmware/hardware info */
185 	unsigned int tx_hdr_len;
186 	unsigned int fw_var;
187 	unsigned int fw_interface;
188 	u8 version;
189 
190 	/* (e)DCF / QOS state */
191 	bool use_short_slot;
192 	spinlock_t tx_stats_lock;
193 	struct p54_tx_queue_stats tx_stats[8];
194 	struct p54_edcf_queue_param qos_params[8];
195 
196 	/* Radio data */
197 	u16 rxhw;
198 	u8 rx_diversity_mask;
199 	u8 tx_diversity_mask;
200 	unsigned int output_power;
201 	struct p54_rssi_db_entry *cur_rssi;
202 	struct ieee80211_channel *curchan;
203 	struct survey_info *survey;
204 	unsigned int chan_num;
205 	struct completion stat_comp;
206 	bool update_stats;
207 	struct {
208 		unsigned int timestamp;
209 		unsigned int cached_cca;
210 		unsigned int cached_tx;
211 		unsigned int cached_rssi;
212 		u64 active;
213 		u64 cca;
214 		u64 tx;
215 		u64 rssi;
216 	} survey_raw;
217 
218 	int noise;
219 	/* calibration, output power limit and rssi<->dBm conversation data */
220 	struct pda_iq_autocal_entry *iq_autocal;
221 	unsigned int iq_autocal_len;
222 	struct p54_cal_database *curve_data;
223 	struct p54_cal_database *output_limit;
224 	struct p54_cal_database *rssi_db;
225 	struct ieee80211_supported_band *band_table[IEEE80211_NUM_BANDS];
226 
227 	/* BBP/MAC state */
228 	u8 mac_addr[ETH_ALEN];
229 	u8 bssid[ETH_ALEN];
230 	u8 mc_maclist[4][ETH_ALEN];
231 	u16 wakeup_timer;
232 	unsigned int filter_flags;
233 	int mc_maclist_num;
234 	int mode;
235 	u32 tsf_low32, tsf_high32;
236 	u32 basic_rate_mask;
237 	u16 aid;
238 	u8 coverage_class;
239 	bool phy_idle;
240 	bool phy_ps;
241 	bool powersave_override;
242 	__le32 beacon_req_id;
243 	struct completion beacon_comp;
244 
245 	/* cryptographic engine information */
246 	u8 privacy_caps;
247 	u8 rx_keycache_size;
248 	unsigned long *used_rxkeys;
249 
250 	/* LED management */
251 #ifdef CONFIG_P54_LEDS
252 	struct p54_led_dev leds[4];
253 	struct delayed_work led_work;
254 #endif /* CONFIG_P54_LEDS */
255 	u16 softled_state;		/* bit field of glowing LEDs */
256 
257 	/* statistics */
258 	struct ieee80211_low_level_stats stats;
259 	struct delayed_work work;
260 
261 	/* eeprom handling */
262 	void *eeprom;
263 	struct completion eeprom_comp;
264 	struct mutex eeprom_mutex;
265 };
266 
267 /* interfaces for the drivers */
268 int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb);
269 void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb);
270 int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw);
271 int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len);
272 int p54_read_eeprom(struct ieee80211_hw *dev);
273 
274 struct ieee80211_hw *p54_init_common(size_t priv_data_len);
275 int p54_register_common(struct ieee80211_hw *dev, struct device *pdev);
276 void p54_free_common(struct ieee80211_hw *dev);
277 
278 void p54_unregister_common(struct ieee80211_hw *dev);
279 
280 #endif /* P54_H */
281