123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239 |
- /*
- * Copyright (c) 2008-2009 Atheros Communications Inc.
- *
- * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
- * Original from Linux kernel 3.0.1
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
- #ifndef ATH_H
- #define ATH_H
-
- #include <unistd.h>
- #include <ipxe/net80211.h>
-
- /* This block of functions are from kernel.h v3.0.1 */
- #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
- #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
- #define BITS_PER_BYTE 8
- #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
- #define BIT(nr) (1UL << (nr))
-
- #define min(x, y) ({ \
- typeof(x) _min1 = (x); \
- typeof(y) _min2 = (y); \
- (void) (&_min1 == &_min2); \
- _min1 < _min2 ? _min1 : _min2; })
- #define max(x, y) ({ \
- typeof(x) _max1 = (x); \
- typeof(y) _max2 = (y); \
- (void) (&_max1 == &_max2); \
- _max1 > _max2 ? _max1 : _max2; })
- #define abs(x) ({ \
- long ret; \
- if (sizeof(x) == sizeof(long)) { \
- long __x = (x); \
- ret = (__x < 0) ? -__x : __x; \
- } else { \
- int __x = (x); \
- ret = (__x < 0) ? -__x : __x; \
- } \
- ret; \
- })
-
- #define ___constant_swab16(x) ((uint16_t)( \
- (((uint16_t)(x) & (uint16_t)0x00ffU) << 8) | \
- (((uint16_t)(x) & (uint16_t)0xff00U) >> 8)))
- #define ___constant_swab32(x) ((uint32_t)( \
- (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \
- (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \
- (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \
- (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24)))
- #define __swab16(x) ___constant_swab16(x)
- #define __swab32(x) ___constant_swab32(x)
- #define swab16 __swab16
- #define swab32 __swab32
-
- static inline int32_t sign_extend32(uint32_t value, int index)
- {
- uint8_t shift = 31 - index;
- return (int32_t)(value << shift) >> shift;
- }
-
- static inline u16 __get_unaligned_le16(const u8 *p)
- {
- return p[0] | p[1] << 8;
- }
- static inline u32 __get_unaligned_le32(const u8 *p)
- {
- return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
- }
- static inline u16 get_unaligned_le16(const void *p)
- {
- return __get_unaligned_le16((const u8 *)p);
- }
- static inline u32 get_unaligned_le32(const void *p)
- {
- return __get_unaligned_le32((const u8 *)p);
- }
- /* End Kernel Block */
-
- /*
- * The key cache is used for h/w cipher state and also for
- * tracking station state such as the current tx antenna.
- * We also setup a mapping table between key cache slot indices
- * and station state to short-circuit node lookups on rx.
- * Different parts have different size key caches. We handle
- * up to ATH_KEYMAX entries (could dynamically allocate state).
- */
- #define ATH_KEYMAX 128 /* max key cache size we handle */
-
- static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
- struct ath_ani {
- int caldone;
- unsigned int longcal_timer;
- unsigned int shortcal_timer;
- unsigned int resetcal_timer;
- unsigned int checkani_timer;
- int timer;
- };
-
- struct ath_cycle_counters {
- u32 cycles;
- u32 rx_busy;
- u32 rx_frame;
- u32 tx_frame;
- };
-
- enum ath_device_state {
- ATH_HW_UNAVAILABLE,
- ATH_HW_INITIALIZED,
- };
-
- enum ath_bus_type {
- ATH_PCI,
- ATH_AHB,
- ATH_USB,
- };
-
- struct reg_dmn_pair_mapping {
- u16 regDmnEnum;
- u16 reg_5ghz_ctl;
- u16 reg_2ghz_ctl;
- };
-
- struct ath_regulatory {
- char alpha2[2];
- u16 country_code;
- u16 max_power_level;
- u32 tp_scale;
- u16 current_rd;
- u16 current_rd_ext;
- int16_t power_limit;
- struct reg_dmn_pair_mapping *regpair;
- };
-
- enum ath_crypt_caps {
- ATH_CRYPT_CAP_CIPHER_AESCCM = BIT(0),
- ATH_CRYPT_CAP_MIC_COMBINED = BIT(1),
- };
-
- struct ath_keyval {
- u8 kv_type;
- u8 kv_pad;
- u16 kv_len;
- u8 kv_val[16]; /* TK */
- u8 kv_mic[8]; /* Michael MIC key */
- u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
- * supports both MIC keys in the same key cache entry;
- * in that case, kv_mic is the RX key) */
- };
-
- enum ath_cipher {
- ATH_CIPHER_WEP = 0,
- ATH_CIPHER_AES_OCB = 1,
- ATH_CIPHER_AES_CCM = 2,
- ATH_CIPHER_CKIP = 3,
- ATH_CIPHER_TKIP = 4,
- ATH_CIPHER_CLR = 5,
- ATH_CIPHER_MIC = 127
- };
-
- /**
- * struct ath_ops - Register read/write operations
- *
- * @read: Register read
- * @multi_read: Multiple register read
- * @write: Register write
- * @enable_write_buffer: Enable multiple register writes
- * @write_flush: flush buffered register writes and disable buffering
- */
- struct ath_ops {
- unsigned int (*read)(void *, u32 reg_offset);
- void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
- void (*write)(void *, u32 val, u32 reg_offset);
- void (*enable_write_buffer)(void *);
- void (*write_flush) (void *);
- u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
- };
-
- struct ath_common;
- struct ath_bus_ops;
-
- struct ath_common {
- void *ah;
- void *priv;
- struct net80211_device *dev;
- int debug_mask;
- enum ath_device_state state;
-
- struct ath_ani ani;
-
- u16 cachelsz;
- u16 curaid;
- u8 macaddr[ETH_ALEN];
- u8 curbssid[ETH_ALEN];
- u8 bssidmask[ETH_ALEN];
-
- u8 tx_chainmask;
- u8 rx_chainmask;
-
- u32 rx_bufsize;
-
- u32 keymax;
- enum ath_crypt_caps crypt_caps;
-
- unsigned int clockrate;
-
- struct ath_cycle_counters cc_ani;
- struct ath_cycle_counters cc_survey;
-
- struct ath_regulatory regulatory;
- const struct ath_ops *ops;
- const struct ath_bus_ops *bus_ops;
-
- int btcoex_enabled;
- };
-
- struct io_buffer *ath_rxbuf_alloc(struct ath_common *common,
- u32 len,
- u32 *iob_addr);
-
- void ath_hw_setbssidmask(struct ath_common *common);
- int ath_hw_keyreset(struct ath_common *common, u16 entry);
- void ath_hw_cycle_counters_update(struct ath_common *common);
- int32_t ath_hw_get_listen_time(struct ath_common *common);
-
- #endif /* ATH_H */
|