freebsd-skq/sys/dev/ral/rt2661var.h
sgalabov 6c25216a49 Align radiotap structures in ral(4)
Currently all radiotap structures in ral(4) are packed, but are not
aligned, which causes ral based devices to crash when one does
'ifconfig wlan0 up' for a wlan interface with a ral wlandev on arches
that care about structure alignment (e.g., MIPS).

Adding an aligned attribute helps fix this problem and ral devices
can be properly brought up.

Reviewed by:	adrian
Sponsored by:	Smartcom - Bulgaria AD
2016-05-25 06:29:23 +00:00

173 lines
4.0 KiB
C

/* $FreeBSD$ */
/*-
* Copyright (c) 2005
* Damien Bergamini <damien.bergamini@free.fr>
*
* Permission to use, copy, modify, and 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.
*/
struct rt2661_rx_radiotap_header {
struct ieee80211_radiotap_header wr_ihdr;
uint64_t wr_tsf;
uint8_t wr_flags;
uint8_t wr_rate;
uint16_t wr_chan_freq;
uint16_t wr_chan_flags;
int8_t wr_antsignal;
int8_t wr_antnoise;
} __packed __aligned(8);
#define RT2661_RX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_TSFT) | \
(1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
(1 << IEEE80211_RADIOTAP_CHANNEL) | \
(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | \
(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
struct rt2661_tx_radiotap_header {
struct ieee80211_radiotap_header wt_ihdr;
uint8_t wt_flags;
uint8_t wt_rate;
uint16_t wt_chan_freq;
uint16_t wt_chan_flags;
} __packed __aligned(8);
#define RT2661_TX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
(1 << IEEE80211_RADIOTAP_CHANNEL))
struct rt2661_tx_data {
bus_dmamap_t map;
struct mbuf *m;
struct ieee80211_node *ni;
uint8_t rix;
int8_t rssi;
};
struct rt2661_tx_ring {
bus_dma_tag_t desc_dmat;
bus_dma_tag_t data_dmat;
bus_dmamap_t desc_map;
bus_addr_t physaddr;
struct rt2661_tx_desc *desc;
struct rt2661_tx_data *data;
int count;
int queued;
int cur;
int next;
int stat;
};
struct rt2661_rx_data {
bus_dmamap_t map;
struct mbuf *m;
};
struct rt2661_rx_ring {
bus_dma_tag_t desc_dmat;
bus_dma_tag_t data_dmat;
bus_dmamap_t desc_map;
bus_addr_t physaddr;
struct rt2661_rx_desc *desc;
struct rt2661_rx_data *data;
int count;
int cur;
int next;
};
struct rt2661_vap {
struct ieee80211vap ral_vap;
int (*ral_newstate)(struct ieee80211vap *,
enum ieee80211_state, int);
};
#define RT2661_VAP(vap) ((struct rt2661_vap *)(vap))
struct rt2661_softc {
struct ieee80211com sc_ic;
struct mtx sc_mtx;
struct mbufq sc_snd;
device_t sc_dev;
bus_space_tag_t sc_st;
bus_space_handle_t sc_sh;
struct callout watchdog_ch;
int sc_tx_timer;
int sc_invalid;
int sc_debug;
/*
* The same in both up to here
* ------------------------------------------------
*/
int sc_flags;
#define RAL_FW_LOADED 0x1
#define RAL_INPUT_RUNNING 0x2
#define RAL_RUNNING 0x4
int sc_id;
struct ieee80211_channel *sc_curchan;
uint8_t rf_rev;
uint8_t rfprog;
uint8_t rffreq;
struct rt2661_tx_ring txq[4];
struct rt2661_tx_ring mgtq;
struct rt2661_rx_ring rxq;
uint32_t rf_regs[4];
int8_t txpow[38];
struct {
uint8_t reg;
uint8_t val;
} bbp_prom[16];
int hw_radio;
int rx_ant;
int tx_ant;
int nb_ant;
int ext_2ghz_lna;
int ext_5ghz_lna;
int rssi_2ghz_corr;
int rssi_5ghz_corr;
uint8_t bbp18;
uint8_t bbp21;
uint8_t bbp22;
uint8_t bbp16;
uint8_t bbp17;
uint8_t bbp64;
int dwelltime;
struct rt2661_rx_radiotap_header sc_rxtap;
struct rt2661_tx_radiotap_header sc_txtap;
};
int rt2661_attach(device_t, int);
int rt2661_detach(void *);
void rt2661_shutdown(void *);
void rt2661_suspend(void *);
void rt2661_resume(void *);
void rt2661_intr(void *);
#define RAL_LOCK(sc) mtx_lock(&(sc)->sc_mtx)
#define RAL_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED)
#define RAL_UNLOCK(sc) mtx_unlock(&(sc)->sc_mtx)