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/* $FreeBSD$ */
/*-
* Copyright (c) 2007
* Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2008 Sam Leffler, Errno Consulting
*
* 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 iwn_rx_radiotap_header {
struct ieee80211_radiotap_header wr_ihdr;
uint64_t wr_tsft;
uint8_t wr_flags;
uint8_t wr_rate;
uint16_t wr_chan_freq;
uint16_t wr_chan_flags;
int8_t wr_dbm_antsignal;
int8_t wr_dbm_antnoise;
} __packed;
#define IWN_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 iwn_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;
#define IWN_TX_RADIOTAP_PRESENT \
((1 << IEEE80211_RADIOTAP_FLAGS) | \
(1 << IEEE80211_RADIOTAP_RATE) | \
(1 << IEEE80211_RADIOTAP_CHANNEL))
struct iwn_dma_info {
bus_dma_tag_t tag;
bus_dmamap_t map;
bus_dma_segment_t seg;
bus_addr_t paddr;
caddr_t vaddr;
bus_size_t size;
};
struct iwn_tx_data {
bus_dmamap_t map;
struct mbuf *m;
struct ieee80211_node *ni;
};
struct iwn_tx_ring {
struct iwn_dma_info desc_dma;
struct iwn_dma_info cmd_dma;
struct iwn_tx_desc *desc;
struct iwn_tx_cmd *cmd;
struct iwn_tx_data data[IWN_TX_RING_COUNT];
bus_dma_tag_t data_dmat;
int qid;
int queued;
int cur;
};
struct iwn_rx_data {
bus_dmamap_t map;
struct mbuf *m;
};
struct iwn_rx_ring {
struct iwn_dma_info desc_dma;
uint32_t *desc;
struct iwn_rx_data data[IWN_RX_RING_COUNT];
bus_dma_tag_t data_dmat;
int cur;
};
struct iwn_node {
struct ieee80211_node ni; /* must be the first */
struct ieee80211_amrr_node amn;
};
#define IWN_NODE(_ni) ((struct iwn_node *)(_ni))
struct iwn_calib_state {
uint8_t state;
#define IWN_CALIB_STATE_INIT 0
#define IWN_CALIB_STATE_ASSOC 1
#define IWN_CALIB_STATE_RUN 2
u_int nbeacons;
uint32_t noise[3];
uint32_t rssi[3];
uint32_t corr_ofdm_x1;
uint32_t corr_ofdm_mrc_x1;
uint32_t corr_ofdm_x4;
uint32_t corr_ofdm_mrc_x4;
uint32_t corr_cck_x4;
uint32_t corr_cck_mrc_x4;
uint32_t bad_plcp_ofdm;
uint32_t fa_ofdm;
uint32_t bad_plcp_cck;
uint32_t fa_cck;
uint32_t low_fa;
uint8_t cck_state;
#define IWN_CCK_STATE_INIT 0
#define IWN_CCK_STATE_LOFA 1
#define IWN_CCK_STATE_HIFA 2
uint8_t noise_samples[20];
u_int cur_noise_sample;
uint8_t noise_ref;
uint32_t energy_samples[10];
u_int cur_energy_sample;
uint32_t energy_cck;
};
struct iwn_vap {
struct ieee80211vap iv_vap;
struct ieee80211_amrr iv_amrr;
struct callout iv_amrr_to;
int (*iv_newstate)(struct ieee80211vap *,
enum ieee80211_state, int);
};
#define IWN_VAP(_vap) ((struct iwn_vap *)(_vap))
struct iwn_softc {
struct ifnet *sc_ifp;
int sc_debug;
struct callout sc_timer_to; /* calib+watchdog timer */
int sc_tx_timer; /* tx watchdog timer/counter */
const struct ieee80211_channel *sc_curchan;
struct iwn_rx_radiotap_header sc_rxtap;
struct iwn_tx_radiotap_header sc_txtap;
/* locks */
struct mtx sc_mtx;
/* bus */
device_t sc_dev;
int mem_rid;
int irq_rid;
struct resource *mem;
struct resource *irq;
/* shared area */
struct iwn_dma_info shared_dma;
struct iwn_shared *shared;
/* "keep warm" page */
struct iwn_dma_info kw_dma;
/* firmware image */
const struct firmware *fw_fp;
/* firmware DMA transfer */
struct iwn_dma_info fw_dma;
/* rings */
struct iwn_tx_ring txq[IWN_NTXQUEUES];
struct iwn_rx_ring rxq;
bus_space_tag_t sc_st;
bus_space_handle_t sc_sh;
void *sc_ih;
bus_size_t sc_sz;
/* Tasks used by the driver */
struct task sc_reinit_task;
struct task sc_radioon_task;
struct task sc_radiooff_task;
/* Thermal calibration */
int calib_cnt;
struct iwn_calib_state calib;
struct iwn_rx_stat last_rx_stat;
int last_rx_valid;
struct iwn_ucode_info ucode_info;
struct iwn_config config;
uint32_t rawtemp;
int temp;
int noise;
uint8_t antmsk;
struct iwn_eeprom_band bands[IWN_NBANDS];
int16_t eeprom_voltage;
int8_t maxpwr2GHz;
int8_t maxpwr5GHz;
};
#define IWN_LOCK_INIT(_sc) \
mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
MTX_NETWORK_LOCK, MTX_DEF)
#define IWN_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
#define IWN_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
#define IWN_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
#define IWN_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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