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
42extern int ath_rxbuf;
43extern int ath_txbuf;
44extern int ath_txbuf_mgmt;
45
46extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
47
48extern struct ath_buf * ath_getbuf(struct ath_softc *sc,
49	    ath_buf_type_t btype);
50extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc,
51	    ath_buf_type_t btype);
52extern struct ath_buf * ath_buf_clone(struct ath_softc *sc,
53	    struct ath_buf *bf);
54/* XXX change this to NULL the buffer pointer? */
55extern void ath_freebuf(struct ath_softc *sc, struct ath_buf *bf);
56extern void ath_returnbuf_head(struct ath_softc *sc, struct ath_buf *bf);
57extern void ath_returnbuf_tail(struct ath_softc *sc, struct ath_buf *bf);
58
59extern int ath_reset(struct ath_softc *, ATH_RESET_TYPE);
60extern void ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf,
61	    int fail);
62extern void ath_tx_update_ratectrl(struct ath_softc *sc,
63	    struct ieee80211_node *ni, struct ath_rc_series *rc,
64	    struct ath_tx_status *ts, int frmlen, int nframes, int nbad);
65
66extern	int ath_hal_gethangstate(struct ath_hal *ah, uint32_t mask,
67	    uint32_t *hangs);
68
69extern void ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf,
70    int status);
71extern	void ath_txq_freeholdingbuf(struct ath_softc *sc,
72	    struct ath_txq *txq);
73
74extern void ath_txqmove(struct ath_txq *dst, struct ath_txq *src);
75
76extern void ath_mode_init(struct ath_softc *sc);
77
78extern void ath_setdefantenna(struct ath_softc *sc, u_int antenna);
79
80extern void ath_setslottime(struct ath_softc *sc);
81
82extern	void ath_legacy_attach_comp_func(struct ath_softc *sc);
83
84extern	void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq);
85
86extern	void ath_legacy_tx_drain(struct ath_softc *sc,
87	    ATH_RESET_TYPE reset_type);
88
89extern	void ath_tx_process_buf_completion(struct ath_softc *sc,
90	    struct ath_txq *txq, struct ath_tx_status *ts, struct ath_buf *bf);
91
92extern	int ath_stoptxdma(struct ath_softc *sc);
93
94extern	void ath_tx_update_tim(struct ath_softc *sc,
95	    struct ieee80211_node *ni, int enable);
96
97/*
98 * This is only here so that the RX proc function can call it.
99 * It's very likely that the "start TX after RX" call should be
100 * done via something in if_ath.c, moving "rx tasklet" into
101 * if_ath.c and do the ath_start() call there.  Once that's done,
102 * we can kill this.
103 */
104extern void ath_start(struct ifnet *ifp);
105extern	void ath_start_task(void *arg, int npending);
106
107extern void ath_tx_dump(struct ath_softc *sc, struct ath_txq *txq);
108
109/*
110 * Power state tracking.
111 */
112extern	void _ath_power_setpower(struct ath_softc *sc, int power_state, const char *file, int line);
113extern	void _ath_power_set_selfgen(struct ath_softc *sc, int power_state, const char *file, int line);
114extern	void _ath_power_set_power_state(struct ath_softc *sc, int power_state, const char *file, int line);
115extern	void _ath_power_restore_power_state(struct ath_softc *sc, const char *file, int line);
116
117#define	ath_power_setpower(sc, ps) _ath_power_setpower(sc, ps, __FILE__, __LINE__)
118#define	ath_power_setselfgen(sc, ps) _ath_power_set_selfgen(sc, ps, __FILE__, __LINE__)
119#define	ath_power_set_power_state(sc, ps) _ath_power_set_power_state(sc, ps, __FILE__, __LINE__)
120#define	ath_power_restore_power_state(sc) _ath_power_restore_power_state(sc, __FILE__, __LINE__)
121
122/*
123 * Kick the frame TX task.
124 */
125static inline void
126ath_tx_kick(struct ath_softc *sc)
127{
128
129	/* XXX NULL for now */
130}
131
132/*
133 * Kick the software TX queue task.
134 */
135static inline void
136ath_tx_swq_kick(struct ath_softc *sc)
137{
138
139	taskqueue_enqueue(sc->sc_tq, &sc->sc_txqtask);
140}
141
142#endif
143