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243 lines
6.4 KiB
C
243 lines
6.4 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2007
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* Damien Bergamini <damien.bergamini@free.fr>
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* Copyright (c) 2008 Sam Leffler, Errno Consulting
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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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struct iwn_rx_radiotap_header {
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struct ieee80211_radiotap_header wr_ihdr;
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uint64_t wr_tsft;
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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_dbm_antsignal;
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int8_t wr_dbm_antnoise;
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} __packed;
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#define IWN_RX_RADIOTAP_PRESENT \
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((1 << IEEE80211_RADIOTAP_TSFT) | \
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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_DBM_ANTSIGNAL) | \
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(1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
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struct iwn_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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} __packed;
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#define IWN_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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struct iwn_dma_info {
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bus_dma_tag_t tag;
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bus_dmamap_t map;
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bus_dma_segment_t seg;
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bus_addr_t paddr;
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caddr_t vaddr;
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bus_size_t size;
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};
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struct iwn_tx_data {
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bus_dmamap_t map;
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struct mbuf *m;
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struct ieee80211_node *ni;
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};
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struct iwn_tx_ring {
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struct iwn_dma_info desc_dma;
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struct iwn_dma_info cmd_dma;
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struct iwn_tx_desc *desc;
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struct iwn_tx_cmd *cmd;
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struct iwn_tx_data data[IWN_TX_RING_COUNT];
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bus_dma_tag_t data_dmat;
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int qid;
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int queued;
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int cur;
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};
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struct iwn_rx_data {
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bus_dmamap_t map;
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struct mbuf *m;
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};
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struct iwn_rx_ring {
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struct iwn_dma_info desc_dma;
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uint32_t *desc;
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struct iwn_rx_data data[IWN_RX_RING_COUNT];
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bus_dma_tag_t data_dmat;
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int cur;
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};
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struct iwn_node {
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struct ieee80211_node ni; /* must be the first */
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struct ieee80211_amrr_node amn;
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};
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#define IWN_NODE(_ni) ((struct iwn_node *)(_ni))
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struct iwn_calib_state {
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uint8_t state;
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#define IWN_CALIB_STATE_INIT 0
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#define IWN_CALIB_STATE_ASSOC 1
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#define IWN_CALIB_STATE_RUN 2
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u_int nbeacons;
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uint32_t noise[3];
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uint32_t rssi[3];
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uint32_t corr_ofdm_x1;
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uint32_t corr_ofdm_mrc_x1;
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uint32_t corr_ofdm_x4;
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uint32_t corr_ofdm_mrc_x4;
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uint32_t corr_cck_x4;
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uint32_t corr_cck_mrc_x4;
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uint32_t bad_plcp_ofdm;
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uint32_t fa_ofdm;
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uint32_t bad_plcp_cck;
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uint32_t fa_cck;
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uint32_t low_fa;
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uint8_t cck_state;
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#define IWN_CCK_STATE_INIT 0
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#define IWN_CCK_STATE_LOFA 1
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#define IWN_CCK_STATE_HIFA 2
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uint8_t noise_samples[20];
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u_int cur_noise_sample;
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uint8_t noise_ref;
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uint32_t energy_samples[10];
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u_int cur_energy_sample;
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uint32_t energy_cck;
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};
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struct iwn_vap {
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struct ieee80211vap iv_vap;
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struct ieee80211_amrr iv_amrr;
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struct callout iv_amrr_to;
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int (*iv_newstate)(struct ieee80211vap *,
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enum ieee80211_state, int);
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};
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#define IWN_VAP(_vap) ((struct iwn_vap *)(_vap))
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struct iwn_softc {
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struct ifnet *sc_ifp;
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int sc_debug;
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struct callout sc_timer_to; /* calib+watchdog timer */
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int sc_tx_timer; /* tx watchdog timer/counter */
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const struct ieee80211_channel *sc_curchan;
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struct iwn_rx_radiotap_header sc_rxtap;
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int sc_rxtap_len;
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struct iwn_tx_radiotap_header sc_txtap;
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int sc_txtap_len;
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/* locks */
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struct mtx sc_mtx;
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/* bus */
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device_t sc_dev;
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int mem_rid;
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int irq_rid;
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struct resource *mem;
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struct resource *irq;
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/* shared area */
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struct iwn_dma_info shared_dma;
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struct iwn_shared *shared;
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/* "keep warm" page */
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struct iwn_dma_info kw_dma;
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/* firmware image */
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const struct firmware *fw_fp;
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/* firmware DMA transfer */
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struct iwn_dma_info fw_dma;
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/* rings */
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struct iwn_tx_ring txq[IWN_NTXQUEUES];
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struct iwn_rx_ring rxq;
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bus_space_tag_t sc_st;
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bus_space_handle_t sc_sh;
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void *sc_ih;
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bus_size_t sc_sz;
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/* command queue related variables */
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#define IWN_SCAN_START (1<<0)
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#define IWN_SCAN_CURCHAN (1<<1)
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#define IWN_SCAN_STOP (1<<2)
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#define IWN_SET_CHAN (1<<3)
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#define IWN_AUTH (1<<4)
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#define IWN_SCAN_NEXT (1<<5)
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#define IWN_RUN (1<<6)
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#define IWN_RADIO_ENABLE (1<<7)
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#define IWN_RADIO_DISABLE (1<<8)
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#define IWN_REINIT (1<<9)
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#define IWN_CMD_MAXOPS 10
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/* command queuing request type */
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#define IWN_QUEUE_NORMAL 0
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#define IWN_QUEUE_CLEAR 1
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int sc_cmd[IWN_CMD_MAXOPS];
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int sc_cmd_arg[IWN_CMD_MAXOPS];
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int sc_cmd_cur; /* current queued scan task */
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int sc_cmd_next; /* last queued scan task */
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struct mtx sc_cmdlock;
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/* Task queues used to control the driver */
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struct taskqueue *sc_tq; /* Main command task queue */
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/* Tasks used by the driver */
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struct task sc_ops_task; /* deferred ops */
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struct task sc_bmiss_task; /* beacon miss */
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/* Thermal calibration */
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int calib_cnt;
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struct iwn_calib_state calib;
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struct iwn_rx_stat last_rx_stat;
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int last_rx_valid;
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struct iwn_ucode_info ucode_info;
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struct iwn_config config;
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uint32_t rawtemp;
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int temp;
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int noise;
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uint8_t antmsk;
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struct iwn_eeprom_band bands[IWN_NBANDS];
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int16_t eeprom_voltage;
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int8_t maxpwr2GHz;
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int8_t maxpwr5GHz;
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};
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#define IWN_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
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MTX_NETWORK_LOCK, MTX_DEF)
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#define IWN_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
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#define IWN_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
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#define IWN_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
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#define IWN_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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#define IWN_CMD_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->sc_cmdlock, device_get_nameunit((_sc)->sc_dev), \
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NULL, MTX_DEF);
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#define IWN_CMD_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_cmdlock)
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#define IWN_CMD_LOCK(_sc) mtx_lock(&(_sc)->sc_cmdlock)
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#define IWN_CMD_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_cmdlock)
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