270 lines
7.0 KiB
C
270 lines
7.0 KiB
C
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 2006,2007
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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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#if ( __FreeBSD_version > 700000 )
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#include <net80211/ieee80211_amrr.h>
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#else
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#include <dev/wpi/ieee80211_amrr.h>
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#endif
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/* DMA mapping */
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struct wpi_mapping {
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int nsegs;
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bus_dma_segment_t segs[WPI_MAX_SCATTER];
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};
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struct wpi_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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uint8_t wr_antenna;
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};
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#define WPI_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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(1 << IEEE80211_RADIOTAP_ANTENNA))
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struct wpi_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_hwqueue;
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};
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#define WPI_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 wpi_dma_info {
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bus_dma_tag_t tag;
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bus_dmamap_t map;
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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 wpi_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 wpi_tx_ring {
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struct wpi_dma_info desc_dma;
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struct wpi_dma_info cmd_dma;
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struct wpi_tx_desc *desc;
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struct wpi_tx_cmd *cmd;
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struct wpi_tx_data *data;
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bus_dma_tag_t data_dmat;
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int qid;
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int count;
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int queued;
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int cur;
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};
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#define WPI_RBUF_COUNT ( WPI_RX_RING_COUNT + 16 )
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struct wpi_softc;
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struct wpi_rbuf {
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struct wpi_softc *sc;
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bus_addr_t paddr;
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caddr_t vaddr;
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SLIST_ENTRY(wpi_rbuf) next;
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};
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struct wpi_rx_data {
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struct mbuf *m;
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};
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struct wpi_rx_ring {
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struct wpi_dma_info desc_dma;
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struct wpi_dma_info buf_dma;
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uint32_t *desc;
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struct wpi_rx_data data[WPI_RX_RING_COUNT];
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struct wpi_rbuf rbuf[WPI_RBUF_COUNT];
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SLIST_HEAD(, wpi_rbuf) freelist;
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int cur;
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};
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struct wpi_amrr {
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struct ieee80211_node ni; /* must be the first */
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int txcnt;
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int retrycnt;
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int success;
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int success_threshold;
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int recovery;
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};
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struct wpi_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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struct wpi_power_sample {
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uint8_t index;
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int8_t power;
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};
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struct wpi_power_group {
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#define WPI_SAMPLES_COUNT 5
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struct wpi_power_sample samples[WPI_SAMPLES_COUNT];
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uint8_t chan;
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int8_t maxpwr;
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int16_t temp;
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};
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struct wpi_softc {
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device_t sc_dev;
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struct ifnet *sc_ifp;
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/* net80211 driver specifics */
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struct ieee80211com sc_ic;
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int (*sc_newstate)(struct ieee80211com *,
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enum ieee80211_state, int);
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unsigned long maxdwell; /* Max dwell time whilst scanning */
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struct mtx sc_mtx;
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struct ieee80211_amrr amrr;
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/* Flags indicating the current state the driver
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* expects the hardware to be in
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*/
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uint32_t flags;
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#define WPI_FLAG_HW_RADIO_OFF (1 << 0)
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#define WPI_FLAG_SCANNING (1 << 1)
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#define WPI_FLAG_BUSY (1 << 2)
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#define WPI_FLAG_AUTH (1 << 3)
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/* Flags indicating the state of the firmware */
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uint32_t fw_state;
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#define WPI_FW_IDLE (1 << 0 )
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/* shared area */
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struct wpi_dma_info shared_dma;
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struct wpi_shared *shared;
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struct wpi_tx_ring txq[WME_NUM_AC];
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struct wpi_tx_ring cmdq;
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struct wpi_rx_ring rxq;
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/* TX Thermal Callibration */
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struct callout calib_to;
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int calib_cnt;
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/* Watch dog timer */
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struct callout watchdog_to;
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int watchdog_cnt;
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struct resource *irq;
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struct resource *mem;
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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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int mem_rid;
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int irq_rid;
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struct wpi_config config;
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int temp;
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int sc_tx_timer;
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struct bpf_if *sc_drvbpf;
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struct wpi_rx_radiotap_header sc_rxtap;
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int sc_rxtap_len;
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struct wpi_tx_radiotap_header sc_txtap;
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int sc_txtap_len;
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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 wpi_dma_info fw_dma;
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/* command queue related variables */
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#define WPI_CMD_MAXOPS 10
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#define WPI_SCAN_START (1<<0)
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#define WPI_SCAN_CURCHAN (1<<1)
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#define WPI_SCAN_STOP (1<<2)
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#define WPI_SET_CHAN (1<<3)
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#define WPI_AUTH (1<<4)
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#define WPI_SCAN_NEXT (1<<5)
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int sc_cmd[WPI_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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struct taskqueue *sc_tq2;/* firmware reset task queue */
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/* Tasks used by the driver */
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struct task sc_radioontask; /* enable rf transmitter task*/
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struct task sc_radioofftask;/* disable rf transmitter task*/
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struct task sc_opstask; /* operation handling task */
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struct task sc_restarttask; /* reset firmware task */
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/* Eeprom info */
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uint8_t cap;
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uint16_t rev;
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uint8_t type;
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struct wpi_power_group groups[WPI_POWER_GROUPS_COUNT];
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int8_t maxpwr[IEEE80211_CHAN_MAX];
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char domain[4]; //reglatory domain //XXX
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};
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#define WPI_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 WPI_LOCK_DECL int __waslocked = 0
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#define WPI_LOCK(_sc) do {\
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if (!(__waslocked = mtx_owned(&(_sc)->sc_mtx))) \
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mtx_lock(&(_sc)->sc_mtx); \
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} while(0)
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#define WPI_UNLOCK(_sc) do { \
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if (!__waslocked) \
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mtx_unlock(&(_sc)->sc_mtx); \
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} while (0)
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#define WPI_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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#define WPI_CMD_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->sc_cmdlock, device_get_nameunit((_sc)->sc_dev), NULL, MTX_DEF);
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#define WPI_CMD_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_cmdlock)
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#define WPI_CMD_LOCK(_sc) mtx_lock(&(_sc)->sc_cmdlock)
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#define WPI_CMD_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_cmdlock)
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#if defined(INVARIANTS) || defined(INVARIANT_SUPPORT)
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#define WPI_LOCK_ASSERT(sc) mtx_assert(&(sc)->sc_mtx, MA_OWNED)
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#else
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#define WPI_LOCK_ASSERT(sc)
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#endif
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