1 /*-
2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 * redistribution must be conditioned upon including a substantially
14 * similar Disclaimer requirement for further binary redistribution.
15 *
16 * NO WARRANTY
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
28 *
29 * $FreeBSD$
30 */
31 #ifndef __IF_ATH_MISC_H__
32 #define __IF_ATH_MISC_H__
33
34 /*
35 * This is where definitions for "public things" in if_ath.c
36 * will go for the time being.
37 *
38 * Anything in here should eventually be moved out of if_ath.c
39 * and into something else.
40 */
41
42 /* unaligned little endian access */
43 #define LE_READ_2(p) \
44 ((u_int16_t) \
45 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8)))
46 #define LE_READ_4(p) \
47 ((u_int32_t) \
48 ((((u_int8_t *)(p))[0] ) | (((u_int8_t *)(p))[1] << 8) | \
49 (((u_int8_t *)(p))[2] << 16) | (((u_int8_t *)(p))[3] << 24)))
50
51 extern int ath_rxbuf;
52 extern int ath_txbuf;
53 extern int ath_txbuf_mgmt;
54
55 extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
56
57 extern struct ath_buf * ath_getbuf(struct ath_softc *sc,
58 ath_buf_type_t btype);
59 extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc,
60 ath_buf_type_t btype);
61 extern struct ath_buf * ath_buf_clone(struct ath_softc *sc,
62 struct ath_buf *bf);
63 /* XXX change this to NULL the buffer pointer? */
64 extern void ath_freebuf(struct ath_softc *sc, struct ath_buf *bf);
65 extern void ath_returnbuf_head(struct ath_softc *sc, struct ath_buf *bf);
66 extern void ath_returnbuf_tail(struct ath_softc *sc, struct ath_buf *bf);
67
68 extern int ath_reset(struct ath_softc *, ATH_RESET_TYPE);
69 extern void ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf,
70 int fail);
71 extern void ath_tx_update_ratectrl(struct ath_softc *sc,
72 struct ieee80211_node *ni, struct ath_rc_series *rc,
73 struct ath_tx_status *ts, int frmlen, int nframes, int nbad);
74
75 extern int ath_hal_gethangstate(struct ath_hal *ah, uint32_t mask,
76 uint32_t *hangs);
77
78 extern void ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf,
79 int status);
80 extern void ath_txq_freeholdingbuf(struct ath_softc *sc,
81 struct ath_txq *txq);
82
83 extern void ath_txqmove(struct ath_txq *dst, struct ath_txq *src);
84
85 extern void ath_mode_init(struct ath_softc *sc);
86
87 extern void ath_setdefantenna(struct ath_softc *sc, u_int antenna);
88
89 extern void ath_setslottime(struct ath_softc *sc);
90
91 extern void ath_legacy_attach_comp_func(struct ath_softc *sc);
92
93 extern void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq);
94
95 extern void ath_legacy_tx_drain(struct ath_softc *sc,
96 ATH_RESET_TYPE reset_type);
97
98 extern void ath_tx_process_buf_completion(struct ath_softc *sc,
99 struct ath_txq *txq, struct ath_tx_status *ts, struct ath_buf *bf);
100
101 extern int ath_stoptxdma(struct ath_softc *sc);
102
103 extern void ath_tx_update_tim(struct ath_softc *sc,
104 struct ieee80211_node *ni, int enable);
105
106 /*
107 * This is only here so that the RX proc function can call it.
108 * It's very likely that the "start TX after RX" call should be
109 * done via something in if_ath.c, moving "rx tasklet" into
110 * if_ath.c and do the ath_start() call there. Once that's done,
111 * we can kill this.
112 */
113 extern void ath_start(struct ifnet *ifp);
114 extern void ath_start_task(void *arg, int npending);
115
116 extern void ath_tx_dump(struct ath_softc *sc, struct ath_txq *txq);
117
118 /*
119 * Power state tracking.
120 */
121 extern void _ath_power_setpower(struct ath_softc *sc, int power_state, const char *file, int line);
122 extern void _ath_power_set_selfgen(struct ath_softc *sc, int power_state, const char *file, int line);
123 extern void _ath_power_set_power_state(struct ath_softc *sc, int power_state, const char *file, int line);
124 extern void _ath_power_restore_power_state(struct ath_softc *sc, const char *file, int line);
125
126 #define ath_power_setpower(sc, ps) _ath_power_setpower(sc, ps, __FILE__, __LINE__)
127 #define ath_power_setselfgen(sc, ps) _ath_power_set_selfgen(sc, ps, __FILE__, __LINE__)
128 #define ath_power_set_power_state(sc, ps) _ath_power_set_power_state(sc, ps, __FILE__, __LINE__)
129 #define ath_power_restore_power_state(sc) _ath_power_restore_power_state(sc, __FILE__, __LINE__)
130
131 /*
132 * Kick the frame TX task.
133 */
134 static inline void
ath_tx_kick(struct ath_softc * sc)135 ath_tx_kick(struct ath_softc *sc)
136 {
137
138 /* XXX NULL for now */
139 }
140
141 /*
142 * Kick the software TX queue task.
143 */
144 static inline void
ath_tx_swq_kick(struct ath_softc * sc)145 ath_tx_swq_kick(struct ath_softc *sc)
146 {
147
148 taskqueue_enqueue(sc->sc_tq, &sc->sc_txqtask);
149 }
150
151 #endif
152