/* $OpenBSD: bcwvar.h,v 1.8 2006/12/06 19:21:45 mglocker Exp $ */ /* * Copyright (c) 2006 Jon Simola * * 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. */ /* * Broadcom BCM43xx Wireless network chipsets (broadcom.com) * SiliconBackplane is technology from Sonics, Inc.(sonicsinc.com) * * Cliff Wright cliff@snipe444.org */ #define BCW_MAX_RADIOS 2 struct bcw_radio { u_int16_t id; u_int16_t info; u_char enabled; }; #define BCW_MAX_CORES 10 struct bcw_core { u_int16_t id; u_int16_t revision; u_char enabled; }; /* number of descriptors used in a ring */ #define BCW_RX_RING_COUNT 128 #define BCW_TX_RING_COUNT 128 #define BCW_MAX_SCATTER 8 /* XXX unknown, wild guess */ struct bcw_rx_data { bus_dmamap_t map; struct mbuf *m; }; struct bcw_tx_data { bus_dmamap_t map; struct mbuf *m; uint32_t softstat; struct ieee80211_node *ni; }; struct bcw_rx_ring { bus_dmamap_t map; bus_dma_segment_t seg; bus_addr_t physaddr; struct bcw_desc *desc; struct bcw_rx_data *data; int count; int cur; int next; }; struct bcw_tx_ring { bus_dmamap_t map; bus_dma_segment_t seg; bus_addr_t physaddr; struct bcw_desc *desc; struct bcw_tx_data *data; int count; int queued; int cur; int next; int stat; }; struct bcw_desc { u_int32_t ctrl; u_int32_t addr; }; /* ring descriptor */ struct bcw_dma_slot { u_int32_t ctrl; u_int32_t addr; }; #define CTRL_BC_MASK 0x1fff /* buffer byte count */ #define CTRL_EOT 0x10000000 /* end of descriptor table */ #define CTRL_IOC 0x20000000 /* interrupt on completion */ #define CTRL_EOF 0x40000000 /* end of frame */ #define CTRL_SOF 0x80000000 /* start of frame */ #if 0 /* * Mbuf pointers. We need these to keep track of the virtual addresses * of our mbuf chains since we can only convert from physical to virtual, * not the other way around. * * The chip has 6 DMA engines, looks like we only need to use one each * for TX and RX, the others stay disabled. */ struct bcw_chain_data { struct mbuf *bcw_tx_chain[BCW_NTXDESC]; struct mbuf *bcw_rx_chain[BCW_NRXDESC]; bus_dmamap_t bcw_tx_map[BCW_NTXDESC]; bus_dmamap_t bcw_rx_map[BCW_NRXDESC]; }; #endif struct bcw_rx_ring; struct bcw_tx_ring; /* Needs to have garbage removed */ struct bcw_softc { struct device sc_dev; struct ieee80211com sc_ic; struct bcw_rx_ring sc_rxring; struct bcw_tx_ring sc_txring; int (*sc_newstate)(struct ieee80211com *, enum ieee80211_state, int); int (*sc_enable)(struct bcw_softc *); void (*sc_disable)(struct bcw_softc *); void (*sc_power)(struct bcw_softc *, int); void (*sc_conf_write)(struct bcw_softc *, u_int32_t, u_int32_t); u_int32_t (*sc_conf_read)(struct bcw_softc *, u_int32_t); struct timeout sc_scan_to; bus_dma_tag_t sc_dmat; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; void *bcw_intrhand; const char *bcw_intrstr; /* interrupt description */ struct pci_attach_args sc_pa; struct cardbus_attach_args sc_ca; u_int32_t sc_phy; /* eeprom indicated phy */ struct bcw_dma_slot *bcw_rx_ring; /* receive ring */ struct bcw_dma_slot *bcw_tx_ring; /* transmit ring */ // struct bcw_chain_data sc_cdata; /* mbufs */ bus_dmamap_t sc_ring_map; u_int32_t sc_intmask; /* current intr mask */ u_int32_t sc_rxin; /* last rx descriptor seen */ u_int32_t sc_txin; /* last tx descriptor seen */ int sc_txsfree; /* no. tx slots available */ int sc_txsnext; /* next available tx slot */ struct timeout sc_timeout; /* Break these out into seperate structs */ u_int16_t sc_chipid; /* Chip ID */ u_int16_t sc_chiprev; /* Chip Revision */ u_int16_t sc_prodid; /* Product ID */ struct bcw_core sc_core[BCW_MAX_CORES]; // struct bcw_radio radio[BCW_MAX_RADIOS]; u_int16_t sc_phy_version; u_int16_t sc_phy_type; u_int16_t sc_phy_rev; u_int16_t sc_corerev; u_int32_t sc_radioid; u_int16_t sc_radiorev; u_int16_t sc_radiotype; u_int32_t sc_phyinfo; u_int16_t sc_numcores; u_int16_t sc_havecommon; u_int8_t sc_radio_gain; u_int16_t sc_radio_pa0b0; u_int16_t sc_radio_pa0b1; u_int16_t sc_radio_pa0b2; u_int16_t sc_radio_pa1b0; u_int16_t sc_radio_pa1b1; u_int16_t sc_radio_pa1b2; u_int8_t sc_idletssi; u_int8_t sc_spromrev; u_int16_t sc_boardflags; u_int8_t sc_sbrev; /* Sonics Backplane Revision */ }; void bcw_attach(struct bcw_softc *); int bcw_detach(void *); int bcw_intr(void *); void bcw_powercontrol_crystal_on(struct bcw_softc *); #define BCW_DEBUG #ifdef BCW_DEBUG //#define DPRINTF(x) do { if (bcw_debug) printf x; } while (0) //#define DPRINTFN(n,x) do { if (bcwdebug >= (n)) printf x; } while (0) #define DPRINTF(x) do { if (1) printf x; } while (0) #define DPRINTFN(n,x) do { if (1 >= (n)) printf x; } while (0) //int bcw_debug = 99; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif /* * Some legacy stuff from bce and iwi to make this compile */ /* transmit buffer max frags allowed */ #define BCW_NTXFRAGS 16 /* Packet status is returned in a pre-packet header */ struct rx_pph { u_int16_t len; u_int16_t flags; u_int16_t pad[12]; }; #define BCW_PREPKT_HEADER_SIZE 30 /* packet status flags bits */ #define RXF_NO 0x8 /* odd number of nibbles */ #define RXF_RXER 0x4 /* receive symbol error */ #define RXF_CRC 0x2 /* crc error */ #define RXF_OV 0x1 /* fifo overflow */ #define BCW_TIMEOUT 100 /* # 10us for mii read/write */ /* for ring descriptors */ #define BCW_RXBUF_LEN (MCLBYTES - 4) #define BCW_INIT_RXDESC(sc, x) \ do { \ struct bcw_dma_slot *__bcwd = &sc->bcw_rx_ring[x]; \ \ *mtod(sc->bcw_cdata.bcw_rx_chain[x], u_int32_t *) = 0; \ __bcwd->addr = \ htole32(sc->bcw_cdata.bcw_rx_map[x]->dm_segs[0].ds_addr \ + 0x40000000); \ if (x != (BCW_NRXDESC - 1)) \ __bcwd->ctrl = htole32(BCW_RXBUF_LEN); \ else \ __bcwd->ctrl = htole32(BCW_RXBUF_LEN | CTRL_EOT); \ bus_dmamap_sync(sc->bcw_dmatag, sc->bcw_ring_map, \ sizeof(struct bcw_dma_slot) * x, \ sizeof(struct bcw_dma_slot), \ BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \ } while (/* CONSTCOND */ 0) #define BCW_NTXFRAGS 16