302 lines
7.8 KiB
C
302 lines
7.8 KiB
C
/* $FreeBSD$ */
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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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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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} __packed;
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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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} __packed;
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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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bus_addr_t cmd_paddr;
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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[WPI_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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int update;
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};
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struct wpi_rx_data {
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struct mbuf *m;
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bus_dmamap_t map;
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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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uint32_t *desc;
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struct wpi_rx_data data[WPI_RX_RING_COUNT];
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bus_dma_tag_t data_dmat;
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int cur;
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int update;
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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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uint8_t id;
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};
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#define WPI_NODE(ni) ((struct wpi_node *)(ni))
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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_buf {
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uint8_t data[56]; /* sizeof(struct wpi_cmd_beacon) */
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struct ieee80211_node *ni;
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struct mbuf *m;
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size_t size;
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int code;
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int ac;
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};
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struct wpi_vap {
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struct ieee80211vap wv_vap;
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struct wpi_buf wv_bcbuf;
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struct ieee80211_beacon_offsets wv_boff;
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struct mtx wv_mtx;
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uint32_t wv_gtk;
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#define WPI_VAP_KEY(kid) (1 << kid)
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int (*wv_newstate)(struct ieee80211vap *,
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enum ieee80211_state, int);
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void (*wv_recv_mgmt)(struct ieee80211_node *,
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struct mbuf *, int,
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const struct ieee80211_rx_stats *,
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int, int);
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};
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#define WPI_VAP(vap) ((struct wpi_vap *)(vap))
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#define WPI_VAP_LOCK_INIT(_wvp) \
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mtx_init(&(_wvp)->wv_mtx, "lock for wv_bcbuf/wv_boff structures", \
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NULL, MTX_DEF)
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#define WPI_VAP_LOCK(_wvp) mtx_lock(&(_wvp)->wv_mtx)
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#define WPI_VAP_UNLOCK(_wvp) mtx_unlock(&(_wvp)->wv_mtx)
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#define WPI_VAP_LOCK_ASSERT(_wvp) mtx_assert(&(_wvp)->wv_mtx, MA_OWNED)
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#define WPI_VAP_LOCK_DESTROY(_wvp) mtx_destroy(&(_wvp)->wv_mtx)
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struct wpi_fw_part {
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const uint8_t *text;
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uint32_t textsz;
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const uint8_t *data;
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uint32_t datasz;
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};
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struct wpi_fw_info {
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const uint8_t *data;
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size_t size;
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struct wpi_fw_part init;
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struct wpi_fw_part main;
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struct wpi_fw_part boot;
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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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int sc_debug;
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int sc_flags;
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#define WPI_PS_PATH (1 << 0)
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struct mtx sc_mtx;
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struct mtx tx_mtx;
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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[WPI_NTXQUEUES];
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struct mtx txq_mtx;
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struct mtx txq_state_mtx;
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uint32_t txq_active;
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struct wpi_rx_ring rxq;
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uint64_t rx_tstamp;
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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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struct callout scan_timeout;
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struct callout tx_timeout;
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/* Watch dog timer. */
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struct callout watchdog_rfkill;
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/* Firmware image. */
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struct wpi_fw_info fw;
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uint32_t errptr;
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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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bus_size_t sc_sz;
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int sc_cap_off; /* PCIe Capabilities. */
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struct wpi_rxon rxon;
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struct mtx rxon_mtx;
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int temp;
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uint32_t qfullmsk;
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uint32_t nodesmsk;
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struct mtx nt_mtx;
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void (*sc_node_free)(struct ieee80211_node *);
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void (*sc_update_rx_ring)(struct wpi_softc *);
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void (*sc_update_tx_ring)(struct wpi_softc *,
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struct wpi_tx_ring *);
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struct wpi_rx_radiotap_header sc_rxtap;
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struct wpi_tx_radiotap_header sc_txtap;
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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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/* Tasks used by the driver. */
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struct task sc_reinittask;
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struct task sc_radiooff_task;
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struct task sc_radioon_task;
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struct task sc_start_task;
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/* Taskqueue */
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struct taskqueue *sc_tq;
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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_eeprom_chan
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eeprom_channels[WPI_CHAN_BANDS_COUNT][WPI_MAX_CHAN_PER_BAND];
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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]; /* Regulatory domain. */
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};
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/*
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* Locking order:
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* 1. WPI_LOCK;
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* 2. WPI_RXON_LOCK;
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* 3. WPI_TX_LOCK;
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* 4. WPI_NT_LOCK / WPI_VAP_LOCK;
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* 5. WPI_TXQ_LOCK;
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* 6. WPI_TXQ_STATE_LOCK;
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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(_sc) mtx_lock(&(_sc)->sc_mtx)
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#define WPI_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
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#define WPI_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
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#define WPI_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx)
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#define WPI_RXON_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->rxon_mtx, "lock for wpi_rxon structure", NULL, MTX_DEF)
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#define WPI_RXON_LOCK(_sc) mtx_lock(&(_sc)->rxon_mtx)
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#define WPI_RXON_UNLOCK(_sc) mtx_unlock(&(_sc)->rxon_mtx)
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#define WPI_RXON_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->rxon_mtx, MA_OWNED)
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#define WPI_RXON_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->rxon_mtx)
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#define WPI_TX_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->tx_mtx, "tx path lock", NULL, MTX_DEF)
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#define WPI_TX_LOCK(_sc) mtx_lock(&(_sc)->tx_mtx)
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#define WPI_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->tx_mtx)
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#define WPI_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->tx_mtx)
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#define WPI_NT_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->nt_mtx, "node table lock", NULL, MTX_DEF)
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#define WPI_NT_LOCK(_sc) mtx_lock(&(_sc)->nt_mtx)
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#define WPI_NT_UNLOCK(_sc) mtx_unlock(&(_sc)->nt_mtx)
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#define WPI_NT_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->nt_mtx)
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#define WPI_TXQ_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->txq_mtx, "txq/cmdq lock", NULL, MTX_DEF)
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#define WPI_TXQ_LOCK(_sc) mtx_lock(&(_sc)->txq_mtx)
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#define WPI_TXQ_UNLOCK(_sc) mtx_unlock(&(_sc)->txq_mtx)
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#define WPI_TXQ_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->txq_mtx)
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#define WPI_TXQ_STATE_LOCK_INIT(_sc) \
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mtx_init(&(_sc)->txq_state_mtx, "txq state lock", NULL, MTX_DEF)
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#define WPI_TXQ_STATE_LOCK(_sc) mtx_lock(&(_sc)->txq_state_mtx)
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#define WPI_TXQ_STATE_UNLOCK(_sc) mtx_unlock(&(_sc)->txq_state_mtx)
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#define WPI_TXQ_STATE_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->txq_state_mtx)
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