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 ifnet *, 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 int ath_descdma_alloc_desc(struct ath_softc *sc, 92 struct ath_descdma *dd, ath_bufhead *head, const char *name, 93 int ds_size, int ndesc); 94 extern int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, 95 ath_bufhead *head, const char *name, int ds_size, int nbuf, 96 int ndesc); 97 extern int ath_descdma_setup_rx_edma(struct ath_softc *sc, 98 struct ath_descdma *dd, ath_bufhead *head, const char *name, 99 int nbuf, int desclen); 100 extern void ath_descdma_cleanup(struct ath_softc *sc, 101 struct ath_descdma *dd, ath_bufhead *head); 102 103 extern void ath_legacy_attach_comp_func(struct ath_softc *sc); 104 105 extern void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq); 106 107 extern void ath_legacy_tx_drain(struct ath_softc *sc, 108 ATH_RESET_TYPE reset_type); 109 110 extern void ath_tx_process_buf_completion(struct ath_softc *sc, 111 struct ath_txq *txq, struct ath_tx_status *ts, struct ath_buf *bf); 112 113 extern int ath_stoptxdma(struct ath_softc *sc); 114 115 extern void ath_tx_update_tim(struct ath_softc *sc, 116 struct ieee80211_node *ni, int enable); 117 118 /* 119 * This is only here so that the RX proc function can call it. 120 * It's very likely that the "start TX after RX" call should be 121 * done via something in if_ath.c, moving "rx tasklet" into 122 * if_ath.c and do the ath_start() call there. Once that's done, 123 * we can kill this. 124 */ 125 extern void ath_start_task(void *arg, int npending); 126 127 extern void ath_tx_dump(struct ath_softc *sc, struct ath_txq *txq); 128 129 /* 130 * Power state tracking. 131 */ 132 extern void _ath_power_setpower(struct ath_softc *sc, int power_state, const char *file, int line); 133 extern void _ath_power_set_selfgen(struct ath_softc *sc, int power_state, const char *file, int line); 134 extern void _ath_power_set_power_state(struct ath_softc *sc, int power_state, const char *file, int line); 135 extern void _ath_power_restore_power_state(struct ath_softc *sc, const char *file, int line); 136 137 #define ath_power_setpower(sc, ps) _ath_power_setpower(sc, ps, __FILE__, __LINE__) 138 #define ath_power_setselfgen(sc, ps) _ath_power_set_selfgen(sc, ps, __FILE__, __LINE__) 139 #define ath_power_set_power_state(sc, ps) _ath_power_set_power_state(sc, ps, __FILE__, __LINE__) 140 #define ath_power_restore_power_state(sc) _ath_power_restore_power_state(sc, __FILE__, __LINE__) 141 142 /* 143 * Kick the frame TX task. 144 */ 145 static inline void 146 ath_tx_kick(struct ath_softc *sc) 147 { 148 149 /* XXX NULL for now */ 150 } 151 152 /* 153 * Kick the software TX queue task. 154 */ 155 static inline void 156 ath_tx_swq_kick(struct ath_softc *sc) 157 { 158 159 taskqueue_enqueue(sc->sc_tq, &sc->sc_txqtask); 160 } 161 162 #endif 163