b6108616ac
This framework allows drivers to abstract the rate control algorithm and just feed the framework with the usable parameters. The rate control framework will now deal with passing the parameters to the selected algorithm. Right now we have AMRR (the default) and RSSADAPT but there's no way to select one with ifconfig, yet. The objective is to have more rate control algorithms in the net80211 stack so all drivers[0] can use it. Ideally, we'll have the well-known sample rate control algorithm in the net80211 at some point so all drivers can use it (not just ath). [0] all drivers that do rate control in software, that is. Reviewed by: bschmidt, thompsa, weyongo MFC after: 1 months
135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2005
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define RAL_TX_LIST_COUNT 8
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#define RAL_TX_MINFREE 2
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#define URAL_SCAN_START 1
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#define URAL_SCAN_END 2
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#define URAL_SET_CHANNEL 3
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struct ural_rx_radiotap_header {
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struct ieee80211_radiotap_header wr_ihdr;
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uint8_t wr_flags;
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uint8_t wr_rate;
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uint16_t wr_chan_freq;
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uint16_t wr_chan_flags;
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int8_t wr_antsignal;
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int8_t wr_antnoise;
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uint8_t wr_antenna;
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};
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#define RAL_RX_RADIOTAP_PRESENT \
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((1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_CHANNEL) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
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struct ural_tx_radiotap_header {
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struct ieee80211_radiotap_header wt_ihdr;
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uint8_t wt_flags;
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uint8_t wt_rate;
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uint16_t wt_chan_freq;
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uint16_t wt_chan_flags;
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uint8_t wt_antenna;
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};
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#define RAL_TX_RADIOTAP_PRESENT \
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((1 << IEEE80211_RADIOTAP_FLAGS) | \
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(1 << IEEE80211_RADIOTAP_RATE) | \
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(1 << IEEE80211_RADIOTAP_CHANNEL) | \
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(1 << IEEE80211_RADIOTAP_ANTENNA))
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struct ural_softc;
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struct ural_tx_data {
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STAILQ_ENTRY(ural_tx_data) next;
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struct ural_softc *sc;
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struct ural_tx_desc desc;
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struct mbuf *m;
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struct ieee80211_node *ni;
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int rate;
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};
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typedef STAILQ_HEAD(, ural_tx_data) ural_txdhead;
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struct ural_vap {
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struct ieee80211vap vap;
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struct ieee80211_beacon_offsets bo;
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struct usb_callout ratectl_ch;
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struct task ratectl_task;
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int (*newstate)(struct ieee80211vap *,
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enum ieee80211_state, int);
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};
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#define URAL_VAP(vap) ((struct ural_vap *)(vap))
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enum {
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URAL_BULK_WR,
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URAL_BULK_RD,
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URAL_N_TRANSFER = 2,
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};
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struct ural_softc {
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struct ifnet *sc_ifp;
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device_t sc_dev;
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struct usb_device *sc_udev;
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uint32_t asic_rev;
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uint8_t rf_rev;
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struct usb_xfer *sc_xfer[URAL_N_TRANSFER];
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struct ural_tx_data tx_data[RAL_TX_LIST_COUNT];
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ural_txdhead tx_q;
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ural_txdhead tx_free;
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int tx_nfree;
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struct ural_rx_desc sc_rx_desc;
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struct mtx sc_mtx;
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uint16_t sta[11];
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uint32_t rf_regs[4];
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uint8_t txpow[14];
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uint8_t sc_bssid[6];
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struct {
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uint8_t val;
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uint8_t reg;
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} __packed bbp_prom[16];
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int led_mode;
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int hw_radio;
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int rx_ant;
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int tx_ant;
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int nb_ant;
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struct ural_rx_radiotap_header sc_rxtap;
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int sc_rxtap_len;
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struct ural_tx_radiotap_header sc_txtap;
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int sc_txtap_len;
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};
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#define RAL_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
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#define RAL_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)
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#define RAL_LOCK_ASSERT(sc, t) mtx_assert(&(sc)->sc_mtx, t)
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