/* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2005, 2006 * Damien Bergamini * * 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. */ /* * Ralink Technology RT2500USB chipset driver * http://www.ralinktech.com/ */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define USBDRV_MAJOR_VER 2 #define USBDRV_MINOR_VER 0 #include #include "ural_reg.h" #include "ural_var.h" static void *ural_soft_state_p = NULL; #define RAL_TXBUF_SIZE (IEEE80211_MAX_LEN) #define RAL_RXBUF_SIZE (IEEE80211_MAX_LEN) /* quickly determine if a given rate is CCK or OFDM */ #define RAL_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) #define RAL_ACK_SIZE 14 /* 10 + 4(FCS) */ #define RAL_CTS_SIZE 14 /* 10 + 4(FCS) */ #define RAL_SIFS 10 /* us */ #define RAL_RXTX_TURNAROUND 5 /* us */ #define URAL_N(a) (sizeof (a) / sizeof ((a)[0])) /* * Supported rates for 802.11a/b/g modes (in 500Kbps unit). */ static const struct ieee80211_rateset ural_rateset_11a = { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; static const struct ieee80211_rateset ural_rateset_11b = { 4, { 2, 4, 11, 22 } }; static const struct ieee80211_rateset ural_rateset_11g = { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; /* * Default values for MAC registers; values taken from the reference driver. */ static const struct { uint16_t reg; uint16_t val; } ural_def_mac[] = { { RAL_TXRX_CSR5, 0x8c8d }, { RAL_TXRX_CSR6, 0x8b8a }, { RAL_TXRX_CSR7, 0x8687 }, { RAL_TXRX_CSR8, 0x0085 }, { RAL_MAC_CSR13, 0x1111 }, { RAL_MAC_CSR14, 0x1e11 }, { RAL_TXRX_CSR21, 0xe78f }, { RAL_MAC_CSR9, 0xff1d }, { RAL_MAC_CSR11, 0x0002 }, { RAL_MAC_CSR22, 0x0053 }, { RAL_MAC_CSR15, 0x0000 }, { RAL_MAC_CSR8, 0x0780 }, { RAL_TXRX_CSR19, 0x0000 }, { RAL_TXRX_CSR18, 0x005a }, { RAL_PHY_CSR2, 0x0000 }, { RAL_TXRX_CSR0, 0x1ec0 }, { RAL_PHY_CSR4, 0x000f } }; /* * Default values for BBP registers; values taken from the reference driver. */ static const struct { uint8_t reg; uint8_t val; } ural_def_bbp[] = { { 3, 0x02 }, { 4, 0x19 }, { 14, 0x1c }, { 15, 0x30 }, { 16, 0xac }, { 17, 0x48 }, { 18, 0x18 }, { 19, 0xff }, { 20, 0x1e }, { 21, 0x08 }, { 22, 0x08 }, { 23, 0x08 }, { 24, 0x80 }, { 25, 0x50 }, { 26, 0x08 }, { 27, 0x23 }, { 30, 0x10 }, { 31, 0x2b }, { 32, 0xb9 }, { 34, 0x12 }, { 35, 0x50 }, { 39, 0xc4 }, { 40, 0x02 }, { 41, 0x60 }, { 53, 0x10 }, { 54, 0x18 }, { 56, 0x08 }, { 57, 0x10 }, { 58, 0x08 }, { 61, 0x60 }, { 62, 0x10 }, { 75, 0xff } }; /* * Default values for RF register R2 indexed by channel numbers. */ static const uint32_t ural_rf2522_r2[] = { 0x307f6, 0x307fb, 0x30800, 0x30805, 0x3080a, 0x3080f, 0x30814, 0x30819, 0x3081e, 0x30823, 0x30828, 0x3082d, 0x30832, 0x3083e }; static const uint32_t ural_rf2523_r2[] = { 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 }; static const uint32_t ural_rf2524_r2[] = { 0x00327, 0x00328, 0x00329, 0x0032a, 0x0032b, 0x0032c, 0x0032d, 0x0032e, 0x0032f, 0x00340, 0x00341, 0x00342, 0x00343, 0x00346 }; static const uint32_t ural_rf2525_r2[] = { 0x20327, 0x20328, 0x20329, 0x2032a, 0x2032b, 0x2032c, 0x2032d, 0x2032e, 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20346 }; static const uint32_t ural_rf2525_hi_r2[] = { 0x2032f, 0x20340, 0x20341, 0x20342, 0x20343, 0x20344, 0x20345, 0x20346, 0x20347, 0x20348, 0x20349, 0x2034a, 0x2034b, 0x2034e }; static const uint32_t ural_rf2525e_r2[] = { 0x2044d, 0x2044e, 0x2044f, 0x20460, 0x20461, 0x20462, 0x20463, 0x20464, 0x20465, 0x20466, 0x20467, 0x20468, 0x20469, 0x2046b }; static const uint32_t ural_rf2526_hi_r2[] = { 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d, 0x0022d, 0x0022e, 0x0022e, 0x0022f, 0x0022d, 0x00240, 0x00240, 0x00241 }; static const uint32_t ural_rf2526_r2[] = { 0x00226, 0x00227, 0x00227, 0x00228, 0x00228, 0x00229, 0x00229, 0x0022a, 0x0022a, 0x0022b, 0x0022b, 0x0022c, 0x0022c, 0x0022d }; /* * For dual-band RF, RF registers R1 and R4 also depend on channel number; * values taken from the reference driver. */ static const struct { uint8_t chan; uint32_t r1; uint32_t r2; uint32_t r4; } ural_rf5222[] = { { 1, 0x08808, 0x0044d, 0x00282 }, { 2, 0x08808, 0x0044e, 0x00282 }, { 3, 0x08808, 0x0044f, 0x00282 }, { 4, 0x08808, 0x00460, 0x00282 }, { 5, 0x08808, 0x00461, 0x00282 }, { 6, 0x08808, 0x00462, 0x00282 }, { 7, 0x08808, 0x00463, 0x00282 }, { 8, 0x08808, 0x00464, 0x00282 }, { 9, 0x08808, 0x00465, 0x00282 }, { 10, 0x08808, 0x00466, 0x00282 }, { 11, 0x08808, 0x00467, 0x00282 }, { 12, 0x08808, 0x00468, 0x00282 }, { 13, 0x08808, 0x00469, 0x00282 }, { 14, 0x08808, 0x0046b, 0x00286 }, { 36, 0x08804, 0x06225, 0x00287 }, { 40, 0x08804, 0x06226, 0x00287 }, { 44, 0x08804, 0x06227, 0x00287 }, { 48, 0x08804, 0x06228, 0x00287 }, { 52, 0x08804, 0x06229, 0x00287 }, { 56, 0x08804, 0x0622a, 0x00287 }, { 60, 0x08804, 0x0622b, 0x00287 }, { 64, 0x08804, 0x0622c, 0x00287 }, { 100, 0x08804, 0x02200, 0x00283 }, { 104, 0x08804, 0x02201, 0x00283 }, { 108, 0x08804, 0x02202, 0x00283 }, { 112, 0x08804, 0x02203, 0x00283 }, { 116, 0x08804, 0x02204, 0x00283 }, { 120, 0x08804, 0x02205, 0x00283 }, { 124, 0x08804, 0x02206, 0x00283 }, { 128, 0x08804, 0x02207, 0x00283 }, { 132, 0x08804, 0x02208, 0x00283 }, { 136, 0x08804, 0x02209, 0x00283 }, { 140, 0x08804, 0x0220a, 0x00283 }, { 149, 0x08808, 0x02429, 0x00281 }, { 153, 0x08808, 0x0242b, 0x00281 }, { 157, 0x08808, 0x0242d, 0x00281 }, { 161, 0x08808, 0x0242f, 0x00281 } }; /* * device operations */ static int ural_attach(dev_info_t *, ddi_attach_cmd_t); static int ural_detach(dev_info_t *, ddi_detach_cmd_t); /* * Module Loading Data & Entry Points */ DDI_DEFINE_STREAM_OPS(ural_dev_ops, nulldev, nulldev, ural_attach, ural_detach, nodev, NULL, D_MP, NULL); static struct modldrv ural_modldrv = { &mod_driverops, /* Type of module. This one is a driver */ "ural driver v%I%", /* short description */ &ural_dev_ops /* driver specific ops */ }; static struct modlinkage modlinkage = { MODREV_1, (void *)&ural_modldrv, NULL }; static int ural_m_stat(void *, uint_t, uint64_t *); static int ural_m_start(void *); static void ural_m_stop(void *); static int ural_m_promisc(void *, boolean_t); static int ural_m_multicst(void *, boolean_t, const uint8_t *); static int ural_m_unicst(void *, const uint8_t *); static mblk_t *ural_m_tx(void *, mblk_t *); static void ural_m_ioctl(void *, queue_t *, mblk_t *); static mac_callbacks_t ural_m_callbacks = { MC_IOCTL, ural_m_stat, ural_m_start, ural_m_stop, ural_m_promisc, ural_m_multicst, ural_m_unicst, ural_m_tx, NULL, /* mc_resources; */ ural_m_ioctl, NULL /* mc_getcapab */ }; extern const char *usb_str_cr(int); static void ural_amrr_start(struct ural_softc *, struct ieee80211_node *); static int ural_tx_trigger(struct ural_softc *, mblk_t *); static int ural_rx_trigger(struct ural_softc *); uint32_t ural_dbg_flags = 0; #ifdef DEBUG void ral_debug(uint32_t dbg_flags, const int8_t *fmt, ...) { va_list args; if (dbg_flags & ural_dbg_flags) { va_start(args, fmt); vcmn_err(CE_CONT, fmt, args); va_end(args); } } #endif static uint16_t ural_read(struct ural_softc *sc, uint16_t reg) { usb_ctrl_setup_t req; usb_cr_t cr; usb_cb_flags_t cf; mblk_t *mp; int err; uint16_t val; bzero(&req, sizeof (req)); req.bmRequestType = USB_DEV_REQ_TYPE_VENDOR | USB_DEV_REQ_DEV_TO_HOST; req.bRequest = RAL_READ_MAC; req.wValue = 0; req.wIndex = reg; req.wLength = sizeof (uint16_t); mp = NULL; err = usb_pipe_ctrl_xfer_wait(sc->sc_udev->dev_default_ph, &req, &mp, &cr, &cf, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_read(): could not read MAC register:" " cr:%s(%d), cf:(%x)\n", usb_str_cr(cr), cr, cf); return (0); } bcopy(mp->b_rptr, &val, sizeof (uint16_t)); if (mp) freemsg(mp); return (LE_16(val)); } static void ural_read_multi(struct ural_softc *sc, uint16_t reg, void *buf, int len) { usb_ctrl_setup_t req; usb_cr_t cr; usb_cb_flags_t cf; mblk_t *mp; int err; bzero(&req, sizeof (req)); req.bmRequestType = USB_DEV_REQ_TYPE_VENDOR | USB_DEV_REQ_DEV_TO_HOST; req.bRequest = RAL_READ_MULTI_MAC; req.wValue = 0; req.wIndex = reg; req.wLength = (uint16_t)len; req.attrs = USB_ATTRS_AUTOCLEARING; mp = NULL; err = usb_pipe_ctrl_xfer_wait(sc->sc_udev->dev_default_ph, &req, &mp, &cr, &cf, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_read_multi(): could not read MAC register:" "cr:%s(%d), cf:(%x)\n", usb_str_cr(cr), cr, cf); return; } bcopy(mp->b_rptr, buf, len); if (mp) freemsg(mp); } static void ural_write(struct ural_softc *sc, uint16_t reg, uint16_t val) { usb_ctrl_setup_t req; usb_cr_t cr; usb_cb_flags_t cf; int err; bzero(&req, sizeof (req)); req.bmRequestType = USB_DEV_REQ_TYPE_VENDOR | USB_DEV_REQ_HOST_TO_DEV; req.bRequest = RAL_WRITE_MAC; req.wValue = val; req.wIndex = reg; req.wLength = 0; req.attrs = USB_ATTRS_NONE; err = usb_pipe_ctrl_xfer_wait(sc->sc_udev->dev_default_ph, &req, NULL, &cr, &cf, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_write(): could not write MAC register:" "cr:%s(%d), cf:(%x)\n", usb_str_cr(cr), cr, cf); } } /* ARGSUSED */ static void ural_txeof(usb_pipe_handle_t pipe, usb_bulk_req_t *req) { struct ural_softc *sc = (struct ural_softc *)req->bulk_client_private; struct ieee80211com *ic = &sc->sc_ic; RAL_DEBUG(RAL_DBG_TX, "ural_txeof(): cr:%s(%d), flags:0x%x, tx_queued:%d", usb_str_cr(req->bulk_completion_reason), req->bulk_completion_reason, req->bulk_cb_flags, sc->tx_queued); if (req->bulk_completion_reason != USB_CR_OK) sc->sc_tx_err++; mutex_enter(&sc->tx_lock); sc->tx_queued--; sc->sc_tx_timer = 0; if (sc->sc_need_sched) { sc->sc_need_sched = 0; mac_tx_update(ic->ic_mach); } mutex_exit(&sc->tx_lock); usb_free_bulk_req(req); } /* ARGSUSED */ static void ural_rxeof(usb_pipe_handle_t pipe, usb_bulk_req_t *req) { struct ural_softc *sc = (struct ural_softc *)req->bulk_client_private; struct ieee80211com *ic = &sc->sc_ic; struct ural_rx_desc *desc; struct ieee80211_frame *wh; struct ieee80211_node *ni; mblk_t *m, *mp; int len, pktlen; char *rxbuf; mp = req->bulk_data; req->bulk_data = NULL; RAL_DEBUG(RAL_DBG_RX, "ural_rxeof(): cr:%s(%d), flags:0x%x, rx_queued:%d", usb_str_cr(req->bulk_completion_reason), req->bulk_completion_reason, req->bulk_cb_flags, sc->rx_queued); if (req->bulk_completion_reason != USB_CR_OK) { sc->sc_rx_err++; goto fail; } len = (uintptr_t)mp->b_wptr - (uintptr_t)mp->b_rptr; rxbuf = (char *)mp->b_rptr; if (len < RAL_RX_DESC_SIZE + IEEE80211_MIN_LEN) { RAL_DEBUG(RAL_DBG_ERR, "ural_rxeof(): xfer too short %d\n", len); sc->sc_rx_err++; goto fail; } /* rx descriptor is located at the end */ desc = (struct ural_rx_desc *)(rxbuf + len - RAL_RX_DESC_SIZE); if ((LE_32(desc->flags) & RAL_RX_PHY_ERROR) || (LE_32(desc->flags) & RAL_RX_CRC_ERROR)) { /* * This should not happen since we did not request to receive * those frames when we filled RAL_TXRX_CSR2. */ RAL_DEBUG(RAL_DBG_ERR, "PHY or CRC error\n"); sc->sc_rx_err++; goto fail; } pktlen = (LE_32(desc->flags) >> 16) & 0xfff; if (pktlen > (len - RAL_RX_DESC_SIZE)) { RAL_DEBUG(RAL_DBG_ERR, "ural_rxeof(): pktlen mismatch <%d, %d>.\n", pktlen, len); goto fail; } /* Strip trailing 802.11 MAC FCS. */ pktlen -= IEEE80211_CRC_LEN; if ((m = allocb(pktlen, BPRI_MED)) == NULL) { RAL_DEBUG(RAL_DBG_ERR, "ural_rxeof(): allocate mblk failed.\n"); sc->sc_rx_nobuf++; goto fail; } bcopy(rxbuf, m->b_rptr, pktlen); m->b_wptr += pktlen; wh = (struct ieee80211_frame *)m->b_rptr; ni = ieee80211_find_rxnode(ic, wh); /* send the frame to the 802.11 layer */ (void) ieee80211_input(ic, m, ni, desc->rssi, 0); /* node is no longer needed */ ieee80211_free_node(ni); fail: mutex_enter(&sc->rx_lock); sc->rx_queued--; mutex_exit(&sc->rx_lock); freemsg(mp); usb_free_bulk_req(req); if (RAL_IS_RUNNING(sc)) (void) ural_rx_trigger(sc); } /* * Return the expected ack rate for a frame transmitted at rate `rate'. * this should depend on the destination node basic rate set. */ static int ural_ack_rate(struct ieee80211com *ic, int rate) { switch (rate) { /* CCK rates */ case 2: return (2); case 4: case 11: case 22: return ((ic->ic_curmode == IEEE80211_MODE_11B) ? 4 : rate); /* OFDM rates */ case 12: case 18: return (12); case 24: case 36: return (24); case 48: case 72: case 96: case 108: return (48); } /* default to 1Mbps */ return (2); } /* * Compute the duration (in us) needed to transmit `len' bytes at rate `rate'. * The function automatically determines the operating mode depending on the * given rate. `flags' indicates whether short preamble is in use or not. */ static uint16_t ural_txtime(int len, int rate, uint32_t flags) { uint16_t txtime; if (RAL_RATE_IS_OFDM(rate)) { /* IEEE Std 802.11a-1999, pp. 37 */ txtime = (8 + 4 * len + 3 + rate - 1) / rate; txtime = 16 + 4 + 4 * txtime + 6; } else { /* IEEE Std 802.11b-1999, pp. 28 */ txtime = (16 * len + rate - 1) / rate; if (rate != 2 && (flags & IEEE80211_F_SHPREAMBLE)) txtime += 72 + 24; else txtime += 144 + 48; } return (txtime); } static uint8_t ural_plcp_signal(int rate) { switch (rate) { /* CCK rates (returned values are device-dependent) */ case 2: return (0x0); case 4: return (0x1); case 11: return (0x2); case 22: return (0x3); /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ case 12: return (0xb); case 18: return (0xf); case 24: return (0xa); case 36: return (0xe); case 48: return (0x9); case 72: return (0xd); case 96: return (0x8); case 108: return (0xc); /* unsupported rates (should not get there) */ default: return (0xff); } } static void ural_setup_tx_desc(struct ural_softc *sc, struct ural_tx_desc *desc, uint32_t flags, int len, int rate) { struct ieee80211com *ic = &sc->sc_ic; uint16_t plcp_length; int remainder; desc->flags = LE_32(flags); desc->flags |= LE_32(RAL_TX_NEWSEQ); desc->flags |= LE_32(len << 16); desc->wme = LE_16(RAL_AIFSN(2) | RAL_LOGCWMIN(3) | RAL_LOGCWMAX(5)); desc->wme |= LE_16(RAL_IVOFFSET(sizeof (struct ieee80211_frame))); /* setup PLCP fields */ desc->plcp_signal = ural_plcp_signal(rate); desc->plcp_service = 4; len += IEEE80211_CRC_LEN; if (RAL_RATE_IS_OFDM(rate)) { desc->flags |= LE_32(RAL_TX_OFDM); plcp_length = len & 0xfff; desc->plcp_length_hi = plcp_length >> 6; desc->plcp_length_lo = plcp_length & 0x3f; } else { plcp_length = (16 * len + rate - 1) / rate; if (rate == 22) { remainder = (16 * len) % 22; if (remainder != 0 && remainder < 7) desc->plcp_service |= RAL_PLCP_LENGEXT; } desc->plcp_length_hi = plcp_length >> 8; desc->plcp_length_lo = plcp_length & 0xff; if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) desc->plcp_signal |= 0x08; } desc->iv = 0; desc->eiv = 0; } #define RAL_TX_TIMEOUT 5 static int ural_send(ieee80211com_t *ic, mblk_t *mp, uint8_t type) { struct ural_softc *sc = (struct ural_softc *)ic; struct ural_tx_desc *desc; struct ieee80211_frame *wh; struct ieee80211_key *k; uint16_t dur; uint32_t flags = 0; int rate, err = DDI_SUCCESS; struct ieee80211_node *ni = NULL; mblk_t *m, *m0; int off, mblen, pktlen, xferlen; mutex_enter(&sc->tx_lock); if (sc->tx_queued > RAL_TX_LIST_COUNT) { RAL_DEBUG(RAL_DBG_TX, "ural_send(): " "no TX buffer available!\n"); if ((type & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_DATA) { sc->sc_need_sched = 1; } sc->sc_tx_nobuf++; err = ENOMEM; goto fail; } m = allocb(RAL_TXBUF_SIZE + RAL_TX_DESC_SIZE, BPRI_MED); if (m == NULL) { RAL_DEBUG(RAL_DBG_ERR, "ural_send(): can't alloc mblk.\n"); err = DDI_FAILURE; goto fail; } m->b_rptr += RAL_TX_DESC_SIZE; /* skip TX descriptor */ m->b_wptr += RAL_TX_DESC_SIZE; for (off = 0, m0 = mp; m0 != NULL; m0 = m0->b_cont) { mblen = (uintptr_t)m0->b_wptr - (uintptr_t)m0->b_rptr; (void) memcpy(m->b_rptr + off, m0->b_rptr, mblen); off += mblen; } m->b_wptr += off; wh = (struct ieee80211_frame *)m->b_rptr; ni = ieee80211_find_txnode(ic, wh->i_addr1); if (ni == NULL) { err = DDI_FAILURE; sc->sc_tx_err++; freemsg(m); goto fail; } if ((type & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_DATA) { (void) ieee80211_encap(ic, m, ni); } if (wh->i_fc[1] & IEEE80211_FC1_WEP) { k = ieee80211_crypto_encap(ic, m); if (k == NULL) { sc->sc_tx_err++; freemsg(m); err = DDI_FAILURE; goto fail; } /* packet header may have moved, reset our local pointer */ wh = (struct ieee80211_frame *)m->b_rptr; } m->b_rptr -= RAL_TX_DESC_SIZE; /* restore */ desc = (struct ural_tx_desc *)m->b_rptr; if ((type & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_DATA) { /* DATA */ if (ic->ic_fixed_rate != IEEE80211_FIXED_RATE_NONE) rate = ic->ic_bss->in_rates.ir_rates[ic->ic_fixed_rate]; else rate = ni->in_rates.ir_rates[ni->in_txrate]; rate &= IEEE80211_RATE_VAL; if (rate <= 0) { rate = 2; /* basic rate */ } if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { flags |= RAL_TX_ACK; flags |= RAL_TX_RETRY(7); dur = ural_txtime(RAL_ACK_SIZE, ural_ack_rate(ic, rate), ic->ic_flags) + RAL_SIFS; *(uint16_t *)(uintptr_t)wh->i_dur = LE_16(dur); } } else { /* MGMT */ rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan) ? 12 : 2; if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { flags |= RAL_TX_ACK; dur = ural_txtime(RAL_ACK_SIZE, rate, ic->ic_flags) + RAL_SIFS; *(uint16_t *)(uintptr_t)wh->i_dur = LE_16(dur); /* tell hardware to add timestamp for probe responses */ if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT && (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PROBE_RESP) flags |= RAL_TX_TIMESTAMP; } } pktlen = (uintptr_t)m->b_wptr - (uintptr_t)m->b_rptr - RAL_TX_DESC_SIZE; ural_setup_tx_desc(sc, desc, flags, pktlen, rate); /* align end on a 2-bytes boundary */ xferlen = (RAL_TX_DESC_SIZE + pktlen + 1) & ~1; /* * No space left in the last URB to store the extra 2 bytes, force * sending of another URB. */ if ((xferlen % 64) == 0) xferlen += 2; m->b_wptr = m->b_rptr + xferlen; RAL_DEBUG(RAL_DBG_TX, "sending data frame len=%u rate=%u xfer len=%u\n", pktlen, rate, xferlen); (void) ural_tx_trigger(sc, m); ic->ic_stats.is_tx_frags++; ic->ic_stats.is_tx_bytes += pktlen; fail: if (ni != NULL) ieee80211_free_node(ni); if ((type & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_DATA || err == 0) { freemsg(mp); } mutex_exit(&sc->tx_lock); return (err); } static mblk_t * ural_m_tx(void *arg, mblk_t *mp) { struct ural_softc *sc = (struct ural_softc *)arg; struct ieee80211com *ic = &sc->sc_ic; mblk_t *next; /* * No data frames go out unless we're associated; this * should not happen as the 802.11 layer does not enable * the xmit queue until we enter the RUN state. */ if (ic->ic_state != IEEE80211_S_RUN) { RAL_DEBUG(RAL_DBG_ERR, "ural_m_tx(): " "discard, state %u\n", ic->ic_state); freemsgchain(mp); return (NULL); } while (mp != NULL) { next = mp->b_next; mp->b_next = NULL; if (ural_send(ic, mp, IEEE80211_FC0_TYPE_DATA) != DDI_SUCCESS) { mp->b_next = next; freemsgchain(mp); return (NULL); } mp = next; } return (mp); } static void ural_set_testmode(struct ural_softc *sc) { usb_ctrl_setup_t req; usb_cr_t cr; usb_cb_flags_t cf; int err; bzero(&req, sizeof (req)); req.bmRequestType = USB_DEV_REQ_TYPE_VENDOR | USB_DEV_REQ_HOST_TO_DEV; req.bRequest = RAL_VENDOR_REQUEST; req.wValue = 4; req.wIndex = 1; req.wLength = 0; req.attrs = USB_ATTRS_NONE; err = usb_pipe_ctrl_xfer_wait(sc->sc_udev->dev_default_ph, &req, NULL, &cr, &cf, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_USB, "ural_set_testmode(): could not set test mode:" "cr:%s(%d), cf:%(x)\n", usb_str_cr(cr), cr, cf); } } static void ural_eeprom_read(struct ural_softc *sc, uint16_t addr, void *buf, int len) { usb_ctrl_setup_t req; usb_cr_t cr; usb_cb_flags_t cf; mblk_t *mp; int err; bzero(&req, sizeof (req)); req.bmRequestType = USB_DEV_REQ_TYPE_VENDOR | USB_DEV_REQ_DEV_TO_HOST; req.bRequest = RAL_READ_EEPROM; req.wValue = 0; req.wIndex = addr; req.wLength = (uint16_t)len; mp = NULL; err = usb_pipe_ctrl_xfer_wait(sc->sc_udev->dev_default_ph, &req, &mp, &cr, &cf, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_USB, "ural_eeprom_read(): could not read EEPROM:" "cr:%s(%d), cf:(%x)\n", usb_str_cr(cr), cr, cf); return; } bcopy(mp->b_rptr, buf, len); if (mp) freemsg(mp); } static void ural_bbp_write(struct ural_softc *sc, uint8_t reg, uint8_t val) { uint16_t tmp; int ntries; for (ntries = 0; ntries < 5; ntries++) { if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY)) break; } if (ntries == 5) { RAL_DEBUG(RAL_DBG_ERR, "ural_bbp_write(): could not write to BBP\n"); return; } tmp = reg << 8 | val; ural_write(sc, RAL_PHY_CSR7, tmp); } static uint8_t ural_bbp_read(struct ural_softc *sc, uint8_t reg) { uint16_t val; int ntries; val = RAL_BBP_WRITE | reg << 8; ural_write(sc, RAL_PHY_CSR7, val); for (ntries = 0; ntries < 5; ntries++) { if (!(ural_read(sc, RAL_PHY_CSR8) & RAL_BBP_BUSY)) break; } if (ntries == 5) { RAL_DEBUG(RAL_DBG_ERR, "ural_bbp_read(): could not read BBP\n"); return (0); } return (ural_read(sc, RAL_PHY_CSR7) & 0xff); } static void ural_rf_write(struct ural_softc *sc, uint8_t reg, uint32_t val) { uint32_t tmp; int ntries; for (ntries = 0; ntries < 5; ntries++) { if (!(ural_read(sc, RAL_PHY_CSR10) & RAL_RF_LOBUSY)) break; } if (ntries == 5) { RAL_DEBUG(RAL_DBG_ERR, "ural_rf_write(): could not write to RF\n"); return; } tmp = RAL_RF_BUSY | RAL_RF_20BIT | (val & 0xffff) << 2 | (reg & 0x3); ural_write(sc, RAL_PHY_CSR9, tmp & 0xffff); ural_write(sc, RAL_PHY_CSR10, tmp >> 16); /* remember last written value in sc */ sc->rf_regs[reg] = val; RAL_DEBUG(RAL_DBG_HW, "RF R[%u] <- 0x%05x\n", reg & 0x3, val & 0xfffff); } /* * Disable RF auto-tuning. */ static void ural_disable_rf_tune(struct ural_softc *sc) { uint32_t tmp; if (sc->rf_rev != RAL_RF_2523) { tmp = sc->rf_regs[RAL_RF1] & ~RAL_RF1_AUTOTUNE; ural_rf_write(sc, RAL_RF1, tmp); } tmp = sc->rf_regs[RAL_RF3] & ~RAL_RF3_AUTOTUNE; ural_rf_write(sc, RAL_RF3, tmp); RAL_DEBUG(RAL_DBG_HW, "disabling RF autotune\n"); } static void ural_set_chan(struct ural_softc *sc, struct ieee80211_channel *c) { struct ieee80211com *ic = &sc->sc_ic; uint8_t power, tmp; uint_t i, chan; chan = ieee80211_chan2ieee(ic, c); if (chan == 0 || chan == IEEE80211_CHAN_ANY) return; if (IEEE80211_IS_CHAN_2GHZ(c)) power = min(sc->txpow[chan - 1], 31); else power = 31; /* adjust txpower using ifconfig settings */ power -= (100 - ic->ic_txpowlimit) / 8; RAL_DEBUG(RAL_DBG_HW, "setting channel to %u, txpower to %u\n", chan, power); switch (sc->rf_rev) { case RAL_RF_2522: ural_rf_write(sc, RAL_RF1, 0x00814); ural_rf_write(sc, RAL_RF2, ural_rf2522_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); break; case RAL_RF_2523: ural_rf_write(sc, RAL_RF1, 0x08804); ural_rf_write(sc, RAL_RF2, ural_rf2523_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x38044); ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); break; case RAL_RF_2524: ural_rf_write(sc, RAL_RF1, 0x0c808); ural_rf_write(sc, RAL_RF2, ural_rf2524_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); break; case RAL_RF_2525: ural_rf_write(sc, RAL_RF1, 0x08808); ural_rf_write(sc, RAL_RF2, ural_rf2525_hi_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); ural_rf_write(sc, RAL_RF1, 0x08808); ural_rf_write(sc, RAL_RF2, ural_rf2525_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00280 : 0x00286); break; case RAL_RF_2525E: ural_rf_write(sc, RAL_RF1, 0x08808); ural_rf_write(sc, RAL_RF2, ural_rf2525e_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); ural_rf_write(sc, RAL_RF4, (chan == 14) ? 0x00286 : 0x00282); break; case RAL_RF_2526: ural_rf_write(sc, RAL_RF2, ural_rf2526_hi_r2[chan - 1]); ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); ural_rf_write(sc, RAL_RF1, 0x08804); ural_rf_write(sc, RAL_RF2, ural_rf2526_r2[chan - 1]); ural_rf_write(sc, RAL_RF3, power << 7 | 0x18044); ural_rf_write(sc, RAL_RF4, (chan & 1) ? 0x00386 : 0x00381); break; /* dual-band RF */ case RAL_RF_5222: for (i = 0; ural_rf5222[i].chan != chan; i++) { if (i > URAL_N(ural_rf5222)) break; } ural_rf_write(sc, RAL_RF1, ural_rf5222[i].r1); ural_rf_write(sc, RAL_RF2, ural_rf5222[i].r2); ural_rf_write(sc, RAL_RF3, power << 7 | 0x00040); ural_rf_write(sc, RAL_RF4, ural_rf5222[i].r4); break; } if (ic->ic_opmode != IEEE80211_M_MONITOR && ic->ic_state != IEEE80211_S_SCAN) { /* set Japan filter bit for channel 14 */ tmp = ural_bbp_read(sc, 70); tmp &= ~RAL_JAPAN_FILTER; if (chan == 14) tmp |= RAL_JAPAN_FILTER; ural_bbp_write(sc, 70, tmp); /* clear CRC errs */ (void) ural_read(sc, RAL_STA_CSR0); drv_usecwait(10000); ural_disable_rf_tune(sc); } } /* * Refer to IEEE Std 802.11-1999 pp. 123 for more information on TSF * synchronization. */ static void ural_enable_tsf_sync(struct ural_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint16_t logcwmin, preload, tmp; /* first, disable TSF synchronization */ ural_write(sc, RAL_TXRX_CSR19, 0); tmp = (16 * ic->ic_bss->in_intval) << 4; ural_write(sc, RAL_TXRX_CSR18, tmp); logcwmin = (ic->ic_opmode == IEEE80211_M_IBSS) ? 2 : 0; preload = (ic->ic_opmode == IEEE80211_M_IBSS) ? 320 : 6; tmp = logcwmin << 12 | preload; ural_write(sc, RAL_TXRX_CSR20, tmp); /* finally, enable TSF synchronization */ tmp = RAL_ENABLE_TSF | RAL_ENABLE_TBCN; if (ic->ic_opmode == IEEE80211_M_STA) tmp |= RAL_ENABLE_TSF_SYNC(1); else tmp |= RAL_ENABLE_TSF_SYNC(2) | RAL_ENABLE_BEACON_GENERATOR; ural_write(sc, RAL_TXRX_CSR19, tmp); RAL_DEBUG(RAL_DBG_HW, "enabling TSF synchronization\n"); } /* * This function can be called by ieee80211_set_shortslottime(). Refer to * IEEE Std 802.11-1999 pp. 85 to know how these values are computed. */ /* ARGSUSED */ static void ural_update_slot(struct ieee80211com *ic, int onoff) { struct ural_softc *sc = (struct ural_softc *)ic; uint16_t slottime, sifs, eifs; slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; /* slottime = (onoff ? 9 : 20); */ /* * These settings may sound a bit inconsistent but this is what the * reference driver does. */ if (ic->ic_curmode == IEEE80211_MODE_11B) { sifs = 16 - RAL_RXTX_TURNAROUND; eifs = 364; } else { sifs = 10 - RAL_RXTX_TURNAROUND; eifs = 64; } ural_write(sc, RAL_MAC_CSR10, slottime); ural_write(sc, RAL_MAC_CSR11, sifs); ural_write(sc, RAL_MAC_CSR12, eifs); } static void ural_set_txpreamble(struct ural_softc *sc) { uint16_t tmp; tmp = ural_read(sc, RAL_TXRX_CSR10); tmp &= ~RAL_SHORT_PREAMBLE; if (sc->sc_ic.ic_flags & IEEE80211_F_SHPREAMBLE) tmp |= RAL_SHORT_PREAMBLE; ural_write(sc, RAL_TXRX_CSR10, tmp); } static void ural_set_basicrates(struct ural_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; /* update basic rate set */ if (ic->ic_curmode == IEEE80211_MODE_11B) { /* 11b basic rates: 1, 2Mbps */ ural_write(sc, RAL_TXRX_CSR11, 0x3); } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bss->in_chan)) { /* 11a basic rates: 6, 12, 24Mbps */ ural_write(sc, RAL_TXRX_CSR11, 0x150); } else { /* 11g basic rates: 1, 2, 5.5, 11, 6, 12, 24Mbps */ ural_write(sc, RAL_TXRX_CSR11, 0x15f); } } static void ural_set_bssid(struct ural_softc *sc, uint8_t *bssid) { uint16_t tmp; tmp = bssid[0] | bssid[1] << 8; ural_write(sc, RAL_MAC_CSR5, tmp); tmp = bssid[2] | bssid[3] << 8; ural_write(sc, RAL_MAC_CSR6, tmp); tmp = bssid[4] | bssid[5] << 8; ural_write(sc, RAL_MAC_CSR7, tmp); RAL_DEBUG(RAL_DBG_HW, "setting BSSID to " MACSTR "\n", MAC2STR(bssid)); } static void ural_set_macaddr(struct ural_softc *sc, uint8_t *addr) { uint16_t tmp; tmp = addr[0] | addr[1] << 8; ural_write(sc, RAL_MAC_CSR2, tmp); tmp = addr[2] | addr[3] << 8; ural_write(sc, RAL_MAC_CSR3, tmp); tmp = addr[4] | addr[5] << 8; ural_write(sc, RAL_MAC_CSR4, tmp); RAL_DEBUG(RAL_DBG_HW, "setting MAC address to " MACSTR "\n", MAC2STR(addr)); } static void ural_update_promisc(struct ural_softc *sc) { uint32_t tmp; tmp = ural_read(sc, RAL_TXRX_CSR2); tmp &= ~RAL_DROP_NOT_TO_ME; if (!(sc->sc_rcr & RAL_RCR_PROMISC)) tmp |= RAL_DROP_NOT_TO_ME; ural_write(sc, RAL_TXRX_CSR2, tmp); RAL_DEBUG(RAL_DBG_HW, "%s promiscuous mode\n", (sc->sc_rcr & RAL_RCR_PROMISC) ? "entering" : "leaving"); } static const char * ural_get_rf(int rev) { switch (rev) { case RAL_RF_2522: return ("RT2522"); case RAL_RF_2523: return ("RT2523"); case RAL_RF_2524: return ("RT2524"); case RAL_RF_2525: return ("RT2525"); case RAL_RF_2525E: return ("RT2525e"); case RAL_RF_2526: return ("RT2526"); case RAL_RF_5222: return ("RT5222"); default: return ("unknown"); } } static void ural_read_eeprom(struct ural_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint16_t val; ural_eeprom_read(sc, RAL_EEPROM_CONFIG0, &val, 2); val = LE_16(val); sc->rf_rev = (val >> 11) & 0x7; sc->hw_radio = (val >> 10) & 0x1; sc->led_mode = (val >> 6) & 0x7; sc->rx_ant = (val >> 4) & 0x3; sc->tx_ant = (val >> 2) & 0x3; sc->nb_ant = val & 0x3; /* read MAC address */ ural_eeprom_read(sc, RAL_EEPROM_ADDRESS, ic->ic_macaddr, 6); /* read default values for BBP registers */ ural_eeprom_read(sc, RAL_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); /* read Tx power for all b/g channels */ ural_eeprom_read(sc, RAL_EEPROM_TXPOWER, sc->txpow, 14); } static int ural_bbp_init(struct ural_softc *sc) { int i, ntries; /* wait for BBP to be ready */ for (ntries = 0; ntries < 100; ntries++) { if (ural_bbp_read(sc, RAL_BBP_VERSION) != 0) break; drv_usecwait(1000); } if (ntries == 100) { RAL_DEBUG(RAL_DBG_ERR, "timeout waiting for BBP\n"); return (EIO); } /* initialize BBP registers to default values */ for (i = 0; i < URAL_N(ural_def_bbp); i++) ural_bbp_write(sc, ural_def_bbp[i].reg, ural_def_bbp[i].val); return (0); } static void ural_set_txantenna(struct ural_softc *sc, int antenna) { uint16_t tmp; uint8_t tx; tx = ural_bbp_read(sc, RAL_BBP_TX) & ~RAL_BBP_ANTMASK; if (antenna == 1) tx |= RAL_BBP_ANTA; else if (antenna == 2) tx |= RAL_BBP_ANTB; else tx |= RAL_BBP_DIVERSITY; /* need to force I/Q flip for RF 2525e, 2526 and 5222 */ if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526 || sc->rf_rev == RAL_RF_5222) tx |= RAL_BBP_FLIPIQ; ural_bbp_write(sc, RAL_BBP_TX, tx); /* update values in PHY_CSR5 and PHY_CSR6 */ tmp = ural_read(sc, RAL_PHY_CSR5) & ~0x7; ural_write(sc, RAL_PHY_CSR5, tmp | (tx & 0x7)); tmp = ural_read(sc, RAL_PHY_CSR6) & ~0x7; ural_write(sc, RAL_PHY_CSR6, tmp | (tx & 0x7)); } static void ural_set_rxantenna(struct ural_softc *sc, int antenna) { uint8_t rx; rx = ural_bbp_read(sc, RAL_BBP_RX) & ~RAL_BBP_ANTMASK; if (antenna == 1) rx |= RAL_BBP_ANTA; else if (antenna == 2) rx |= RAL_BBP_ANTB; else rx |= RAL_BBP_DIVERSITY; /* need to force no I/Q flip for RF 2525e and 2526 */ if (sc->rf_rev == RAL_RF_2525E || sc->rf_rev == RAL_RF_2526) rx &= ~RAL_BBP_FLIPIQ; ural_bbp_write(sc, RAL_BBP_RX, rx); } /* * This function is called periodically (every 200ms) during scanning to * switch from one channel to another. */ static void ural_next_scan(void *arg) { struct ural_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; if (ic->ic_state == IEEE80211_S_SCAN) ieee80211_next_scan(ic); } static int ural_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) { struct ural_softc *sc = (struct ural_softc *)ic; enum ieee80211_state ostate; struct ieee80211_node *ni; int err; RAL_LOCK(sc); ostate = ic->ic_state; if (sc->sc_scan_id != 0) { (void) untimeout(sc->sc_scan_id); sc->sc_scan_id = 0; } if (sc->sc_amrr_id != 0) { (void) untimeout(sc->sc_amrr_id); sc->sc_amrr_id = 0; } switch (nstate) { case IEEE80211_S_INIT: if (ostate == IEEE80211_S_RUN) { /* abort TSF synchronization */ ural_write(sc, RAL_TXRX_CSR19, 0); /* force tx led to stop blinking */ ural_write(sc, RAL_MAC_CSR20, 0); } break; case IEEE80211_S_SCAN: ural_set_chan(sc, ic->ic_curchan); sc->sc_scan_id = timeout(ural_next_scan, (void *)sc, drv_usectohz(sc->dwelltime * 1000)); break; case IEEE80211_S_AUTH: RAL_DEBUG(RAL_DBG_MSG, "-> IEEE80211_S_AUTH ...\n"); ural_set_chan(sc, ic->ic_curchan); break; case IEEE80211_S_ASSOC: RAL_DEBUG(RAL_DBG_MSG, "-> IEEE80211_S_ASSOC ...\n"); ural_set_chan(sc, ic->ic_curchan); break; case IEEE80211_S_RUN: RAL_DEBUG(RAL_DBG_MSG, "-> IEEE80211_S_RUN ...\n"); ural_set_chan(sc, ic->ic_curchan); ni = ic->ic_bss; if (ic->ic_opmode != IEEE80211_M_MONITOR) { ural_update_slot(ic, 1); ural_set_txpreamble(sc); ural_set_basicrates(sc); ural_set_bssid(sc, ni->in_bssid); } /* make tx led blink on tx (controlled by ASIC) */ ural_write(sc, RAL_MAC_CSR20, 1); if (ic->ic_opmode != IEEE80211_M_MONITOR) ural_enable_tsf_sync(sc); /* enable automatic rate adaptation in STA mode */ if (ic->ic_opmode == IEEE80211_M_STA && ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) ural_amrr_start(sc, ni); break; } RAL_UNLOCK(sc); err = sc->sc_newstate(ic, nstate, arg); /* * Finally, start any timers. */ if (nstate == IEEE80211_S_RUN) ieee80211_start_watchdog(ic, 1); return (err); } static void ural_close_pipes(struct ural_softc *sc) { usb_flags_t flags = USB_FLAGS_SLEEP; if (sc->sc_rx_pipeh != NULL) { usb_pipe_reset(sc->sc_dev, sc->sc_rx_pipeh, flags, NULL, 0); usb_pipe_close(sc->sc_dev, sc->sc_rx_pipeh, flags, NULL, 0); sc->sc_rx_pipeh = NULL; } if (sc->sc_tx_pipeh != NULL) { usb_pipe_reset(sc->sc_dev, sc->sc_tx_pipeh, flags, NULL, 0); usb_pipe_close(sc->sc_dev, sc->sc_tx_pipeh, flags, NULL, 0); sc->sc_tx_pipeh = NULL; } } static int ural_open_pipes(struct ural_softc *sc) { usb_ep_data_t *ep_node; usb_pipe_policy_t policy; int err; ep_node = usb_lookup_ep_data(sc->sc_dev, sc->sc_udev, 0, 0, 0, USB_EP_ATTR_BULK, USB_EP_DIR_OUT); bzero(&policy, sizeof (usb_pipe_policy_t)); policy.pp_max_async_reqs = RAL_TX_LIST_COUNT; if ((err = usb_pipe_open(sc->sc_dev, &ep_node->ep_descr, &policy, USB_FLAGS_SLEEP, &sc->sc_tx_pipeh)) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_open_pipes(): %x failed to open tx pipe\n", err); goto fail; } RAL_DEBUG(RAL_DBG_MSG, "tx pipe opened\n"); ep_node = usb_lookup_ep_data(sc->sc_dev, sc->sc_udev, 0, 0, 0, USB_EP_ATTR_BULK, USB_EP_DIR_IN); bzero(&policy, sizeof (usb_pipe_policy_t)); policy.pp_max_async_reqs = RAL_RX_LIST_COUNT + 32; if ((err = usb_pipe_open(sc->sc_dev, &ep_node->ep_descr, &policy, USB_FLAGS_SLEEP, &sc->sc_rx_pipeh)) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_open_pipes(): %x failed to open rx pipe\n", err); goto fail; } RAL_DEBUG(RAL_DBG_MSG, "rx pipe opened\n"); return (USB_SUCCESS); fail: if (sc->sc_rx_pipeh != NULL) { usb_pipe_close(sc->sc_dev, sc->sc_rx_pipeh, USB_FLAGS_SLEEP, NULL, 0); sc->sc_rx_pipeh = NULL; } if (sc->sc_tx_pipeh != NULL) { usb_pipe_close(sc->sc_dev, sc->sc_tx_pipeh, USB_FLAGS_SLEEP, NULL, 0); sc->sc_tx_pipeh = NULL; } return (USB_FAILURE); } static int ural_tx_trigger(struct ural_softc *sc, mblk_t *mp) { usb_bulk_req_t *req; int err; sc->sc_tx_timer = RAL_TX_TIMEOUT; req = usb_alloc_bulk_req(sc->sc_dev, 0, USB_FLAGS_SLEEP); if (req == NULL) { RAL_DEBUG(RAL_DBG_ERR, "ural_tx_trigger(): failed to allocate req"); freemsg(mp); return (-1); } req->bulk_len = (uintptr_t)mp->b_wptr - (uintptr_t)mp->b_rptr; req->bulk_data = mp; req->bulk_client_private = (usb_opaque_t)sc; req->bulk_timeout = RAL_TX_TIMEOUT; req->bulk_attributes = USB_ATTRS_AUTOCLEARING; req->bulk_cb = ural_txeof; req->bulk_exc_cb = ural_txeof; req->bulk_completion_reason = 0; req->bulk_cb_flags = 0; if ((err = usb_pipe_bulk_xfer(sc->sc_tx_pipeh, req, 0)) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_tx_trigger(): " "failed to do tx xfer, %d", err); usb_free_bulk_req(req); return (-1); } sc->tx_queued++; return (0); } static int ural_rx_trigger(struct ural_softc *sc) { usb_bulk_req_t *req; int err; req = usb_alloc_bulk_req(sc->sc_dev, RAL_RXBUF_SIZE, USB_FLAGS_SLEEP); if (req == NULL) { RAL_DEBUG(RAL_DBG_ERR, "ural_rx_trigger(): failed to allocate req"); return (-1); } req->bulk_len = RAL_RXBUF_SIZE; req->bulk_client_private = (usb_opaque_t)sc; req->bulk_timeout = 0; req->bulk_attributes = USB_ATTRS_SHORT_XFER_OK | USB_ATTRS_AUTOCLEARING; req->bulk_cb = ural_rxeof; req->bulk_exc_cb = ural_rxeof; req->bulk_completion_reason = 0; req->bulk_cb_flags = 0; err = usb_pipe_bulk_xfer(sc->sc_rx_pipeh, req, 0); if (err != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_rx_trigger(): " "failed to do rx xfer, %d", err); usb_free_bulk_req(req); return (-1); } mutex_enter(&sc->rx_lock); sc->rx_queued++; mutex_exit(&sc->rx_lock); return (0); } static void ural_init_tx_queue(struct ural_softc *sc) { sc->tx_queued = 0; } static int ural_init_rx_queue(struct ural_softc *sc) { int i; sc->rx_queued = 0; for (i = 0; i < RAL_RX_LIST_COUNT; i++) { if (ural_rx_trigger(sc) != 0) { return (USB_FAILURE); } } return (USB_SUCCESS); } static void ural_stop(struct ural_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; ieee80211_new_state(ic, IEEE80211_S_INIT, -1); ieee80211_stop_watchdog(ic); /* stop the watchdog */ RAL_LOCK(sc); sc->sc_tx_timer = 0; sc->sc_flags &= ~RAL_FLAG_RUNNING; /* STOP */ /* disable Rx */ ural_write(sc, RAL_TXRX_CSR2, RAL_DISABLE_RX); /* reset ASIC and BBP (but won't reset MAC registers!) */ ural_write(sc, RAL_MAC_CSR1, RAL_RESET_ASIC | RAL_RESET_BBP); ural_write(sc, RAL_MAC_CSR1, 0); ural_close_pipes(sc); RAL_UNLOCK(sc); } static int ural_init(struct ural_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; uint16_t tmp; int i, ntries; ural_set_testmode(sc); ural_write(sc, 0x308, 0x00f0); /* magic */ ural_stop(sc); /* initialize MAC registers to default values */ for (i = 0; i < URAL_N(ural_def_mac); i++) ural_write(sc, ural_def_mac[i].reg, ural_def_mac[i].val); /* wait for BBP and RF to wake up (this can take a long time!) */ for (ntries = 0; ntries < 100; ntries++) { tmp = ural_read(sc, RAL_MAC_CSR17); if ((tmp & (RAL_BBP_AWAKE | RAL_RF_AWAKE)) == (RAL_BBP_AWAKE | RAL_RF_AWAKE)) break; drv_usecwait(1000); } if (ntries == 100) { RAL_DEBUG(RAL_DBG_ERR, "ural_init(): timeout waiting for BBP/RF to wakeup\n"); goto fail; } /* we're ready! */ ural_write(sc, RAL_MAC_CSR1, RAL_HOST_READY); /* set basic rate set (will be updated later) */ ural_write(sc, RAL_TXRX_CSR11, 0x15f); if (ural_bbp_init(sc) != 0) goto fail; /* set default BSS channel */ ural_set_chan(sc, ic->ic_curchan); /* clear statistic registers (STA_CSR0 to STA_CSR10) */ ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof (sc->sta)); ural_set_txantenna(sc, sc->tx_ant); ural_set_rxantenna(sc, sc->rx_ant); ural_set_macaddr(sc, ic->ic_macaddr); if (ural_open_pipes(sc) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_init(): " "could not open pipes.\n"); goto fail; } ural_init_tx_queue(sc); if (ural_init_rx_queue(sc) != USB_SUCCESS) goto fail; /* kick Rx */ tmp = RAL_DROP_PHY | RAL_DROP_CRC; if (ic->ic_opmode != IEEE80211_M_MONITOR) { tmp |= RAL_DROP_CTL | RAL_DROP_BAD_VERSION; if (ic->ic_opmode != IEEE80211_M_HOSTAP) tmp |= RAL_DROP_TODS; if (!(sc->sc_rcr & RAL_RCR_PROMISC)) tmp |= RAL_DROP_NOT_TO_ME; } ural_write(sc, RAL_TXRX_CSR2, tmp); sc->sc_flags |= RAL_FLAG_RUNNING; /* RUNNING */ return (DDI_SUCCESS); fail: ural_stop(sc); return (EIO); } static int ural_offline(dev_info_t *devinfo) { struct ural_softc *sc; struct ieee80211com *ic; RAL_DEBUG(RAL_DBG_MSG, "ural_offline()\n"); /* * We can't call ural_stop() here, since the hardware is removed, * we can't access the register anymore. */ sc = ddi_get_soft_state(ural_soft_state_p, ddi_get_instance(devinfo)); ic = &sc->sc_ic; ieee80211_new_state(ic, IEEE80211_S_INIT, -1); ieee80211_stop_watchdog(ic); /* stop the watchdog */ RAL_LOCK(sc); sc->sc_tx_timer = 0; sc->sc_flags &= ~RAL_FLAG_RUNNING; /* STOP */ ural_close_pipes(sc); RAL_UNLOCK(sc); return (DDI_SUCCESS); } static int ural_online(dev_info_t *devinfo) { struct ural_softc *sc; int err; RAL_DEBUG(RAL_DBG_MSG, "ural_online()\n"); sc = ddi_get_soft_state(ural_soft_state_p, ddi_get_instance(devinfo)); err = ural_init(sc); return (err); } #define URAL_AMRR_MIN_SUCCESS_THRESHOLD 1 #define URAL_AMRR_MAX_SUCCESS_THRESHOLD 10 /* * Naive implementation of the Adaptive Multi Rate Retry algorithm: * "IEEE 802.11 Rate Adaptation: A Practical Approach" * Mathieu Lacage, Hossein Manshaei, Thierry Turletti * INRIA Sophia - Projet Planete * http://www-sop.inria.fr/rapports/sophia/RR-5208.html * * This algorithm is particularly well suited for ural since it does not * require per-frame retry statistics. Note however that since h/w does * not provide per-frame stats, we can't do per-node rate adaptation and * thus automatic rate adaptation is only enabled in STA operating mode. */ #define is_success(amrr) \ ((amrr)->retrycnt < (amrr)->txcnt / 10) #define is_failure(amrr) \ ((amrr)->retrycnt > (amrr)->txcnt / 3) #define is_enough(amrr) \ ((amrr)->txcnt > 10) #define is_min_rate(ni) \ ((ni)->in_txrate == 0) #define is_max_rate(ni) \ ((ni)->in_txrate == (ni)->in_rates.ir_nrates - 1) #define increase_rate(ni) \ ((ni)->in_txrate++) #define decrease_rate(ni) \ ((ni)->in_txrate--) #define reset_cnt(amrr) do { \ (amrr)->txcnt = (amrr)->retrycnt = 0; \ _NOTE(CONSTCOND) \ } while (/* CONSTCOND */0) static void ural_ratectl(struct ural_amrr *amrr, struct ieee80211_node *ni) { int need_change = 0; if (is_success(amrr) && is_enough(amrr)) { amrr->success++; if (amrr->success >= amrr->success_threshold && !is_max_rate(ni)) { amrr->recovery = 1; amrr->success = 0; increase_rate(ni); need_change = 1; } else { amrr->recovery = 0; } } else if (is_failure(amrr)) { amrr->success = 0; if (!is_min_rate(ni)) { if (amrr->recovery) { amrr->success_threshold *= 2; if (amrr->success_threshold > URAL_AMRR_MAX_SUCCESS_THRESHOLD) amrr->success_threshold = URAL_AMRR_MAX_SUCCESS_THRESHOLD; } else { amrr->success_threshold = URAL_AMRR_MIN_SUCCESS_THRESHOLD; } decrease_rate(ni); need_change = 1; } amrr->recovery = 0; /* original paper was incorrect */ } if (is_enough(amrr) || need_change) reset_cnt(amrr); } static void ural_amrr_timeout(void *arg) { struct ural_softc *sc = (struct ural_softc *)arg; struct ural_amrr *amrr = &sc->amrr; ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof (sc->sta)); /* count TX retry-fail as Tx errors */ sc->sc_tx_err += sc->sta[9]; sc->sc_tx_retries += (sc->sta[7] + sc->sta[8]); amrr->retrycnt = sc->sta[7] + /* TX one-retry ok count */ sc->sta[8] + /* TX more-retry ok count */ sc->sta[9]; /* TX retry-fail count */ amrr->txcnt = amrr->retrycnt + sc->sta[6]; /* TX no-retry ok count */ ural_ratectl(amrr, sc->sc_ic.ic_bss); sc->sc_amrr_id = timeout(ural_amrr_timeout, (void *)sc, drv_usectohz(1000 * 1000)); /* 1 second */ } static void ural_amrr_start(struct ural_softc *sc, struct ieee80211_node *ni) { struct ural_amrr *amrr = &sc->amrr; int i; /* clear statistic registers (STA_CSR0 to STA_CSR10) */ ural_read_multi(sc, RAL_STA_CSR0, sc->sta, sizeof (sc->sta)); amrr->success = 0; amrr->recovery = 0; amrr->txcnt = amrr->retrycnt = 0; amrr->success_threshold = URAL_AMRR_MIN_SUCCESS_THRESHOLD; /* set rate to some reasonable initial value */ for (i = ni->in_rates.ir_nrates - 1; i > 0 && (ni->in_rates.ir_rates[i] & IEEE80211_RATE_VAL) > 72; i--) { } ni->in_txrate = i; sc->sc_amrr_id = timeout(ural_amrr_timeout, (void *)sc, drv_usectohz(1000 * 1000)); /* 1 second */ } void ural_watchdog(void *arg) { struct ural_softc *sc = arg; struct ieee80211com *ic = &sc->sc_ic; int ntimer = 0; RAL_LOCK(sc); ic->ic_watchdog_timer = 0; if (!RAL_IS_RUNNING(sc)) { RAL_UNLOCK(sc); return; } if (sc->sc_tx_timer > 0) { if (--sc->sc_tx_timer == 0) { RAL_DEBUG(RAL_DBG_ERR, "tx timer timeout\n"); RAL_UNLOCK(sc); (void) ural_init(sc); (void) ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); return; } } if (ic->ic_state == IEEE80211_S_RUN) ntimer = 1; RAL_UNLOCK(sc); ieee80211_watchdog(ic); if (ntimer) ieee80211_start_watchdog(ic, ntimer); } static int ural_m_start(void *arg) { struct ural_softc *sc = (struct ural_softc *)arg; crypto_mech_type_t type; int err; type = crypto_mech2id(SUN_CKM_RC4); /* load rc4 module into kernel */ RAL_DEBUG(RAL_DBG_MSG, "ural_m_start(%d)\n", type); /* * initialize RT2500USB hardware */ err = ural_init(sc); if (err != DDI_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "device configuration failed\n"); goto fail; } sc->sc_flags |= RAL_FLAG_RUNNING; /* RUNNING */ return (err); fail: ural_stop(sc); return (err); } static void ural_m_stop(void *arg) { struct ural_softc *sc = (struct ural_softc *)arg; RAL_DEBUG(RAL_DBG_MSG, "ural_m_stop()\n"); (void) ural_stop(sc); sc->sc_flags &= ~RAL_FLAG_RUNNING; /* STOP */ } static int ural_m_unicst(void *arg, const uint8_t *macaddr) { struct ural_softc *sc = (struct ural_softc *)arg; struct ieee80211com *ic = &sc->sc_ic; RAL_DEBUG(RAL_DBG_MSG, "ural_m_unicst(): " MACSTR "\n", MAC2STR(macaddr)); IEEE80211_ADDR_COPY(ic->ic_macaddr, macaddr); (void) ural_set_macaddr(sc, (uint8_t *)macaddr); (void) ural_init(sc); return (0); } /*ARGSUSED*/ static int ural_m_multicst(void *arg, boolean_t add, const uint8_t *mca) { return (0); } static int ural_m_promisc(void *arg, boolean_t on) { struct ural_softc *sc = (struct ural_softc *)arg; RAL_DEBUG(RAL_DBG_MSG, "ural_m_promisc()\n"); if (on) { sc->sc_rcr |= RAL_RCR_PROMISC; sc->sc_rcr |= RAL_RCR_MULTI; } else { sc->sc_rcr &= ~RAL_RCR_PROMISC; sc->sc_rcr &= ~RAL_RCR_PROMISC; } ural_update_promisc(sc); return (0); } static void ural_m_ioctl(void* arg, queue_t *wq, mblk_t *mp) { struct ural_softc *sc = (struct ural_softc *)arg; struct ieee80211com *ic = &sc->sc_ic; int err; err = ieee80211_ioctl(ic, wq, mp); RAL_LOCK(sc); if (err == ENETRESET) { if (RAL_IS_RUNNING(sc)) { RAL_UNLOCK(sc); (void) ural_init(sc); (void) ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); RAL_LOCK(sc); } } RAL_UNLOCK(sc); } static int ural_m_stat(void *arg, uint_t stat, uint64_t *val) { struct ural_softc *sc = (struct ural_softc *)arg; ieee80211com_t *ic = &sc->sc_ic; ieee80211_node_t *ni = ic->ic_bss; struct ieee80211_rateset *rs = &ni->in_rates; RAL_LOCK(sc); switch (stat) { case MAC_STAT_IFSPEED: *val = ((ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) ? (rs->ir_rates[ni->in_txrate] & IEEE80211_RATE_VAL) : ic->ic_fixed_rate) * 5000000ull; break; case MAC_STAT_NOXMTBUF: *val = sc->sc_tx_nobuf; break; case MAC_STAT_NORCVBUF: *val = sc->sc_rx_nobuf; break; case MAC_STAT_IERRORS: *val = sc->sc_rx_err; break; case MAC_STAT_RBYTES: *val = ic->ic_stats.is_rx_bytes; break; case MAC_STAT_IPACKETS: *val = ic->ic_stats.is_rx_frags; break; case MAC_STAT_OBYTES: *val = ic->ic_stats.is_tx_bytes; break; case MAC_STAT_OPACKETS: *val = ic->ic_stats.is_tx_frags; break; case MAC_STAT_OERRORS: case WIFI_STAT_TX_FAILED: *val = sc->sc_tx_err; break; case WIFI_STAT_TX_RETRANS: *val = sc->sc_tx_retries; break; case WIFI_STAT_FCS_ERRORS: case WIFI_STAT_WEP_ERRORS: case WIFI_STAT_TX_FRAGS: case WIFI_STAT_MCAST_TX: case WIFI_STAT_RTS_SUCCESS: case WIFI_STAT_RTS_FAILURE: case WIFI_STAT_ACK_FAILURE: case WIFI_STAT_RX_FRAGS: case WIFI_STAT_MCAST_RX: case WIFI_STAT_RX_DUPS: RAL_UNLOCK(sc); return (ieee80211_stat(ic, stat, val)); default: RAL_UNLOCK(sc); return (ENOTSUP); } RAL_UNLOCK(sc); return (0); } static int ural_attach(dev_info_t *devinfo, ddi_attach_cmd_t cmd) { struct ural_softc *sc; struct ieee80211com *ic; int err, i; int instance; char strbuf[32]; wifi_data_t wd = { 0 }; mac_register_t *macp; RAL_DEBUG(RAL_DBG_MSG, "ural_attach()\n"); if (cmd != DDI_ATTACH) return (DDI_FAILURE); instance = ddi_get_instance(devinfo); if (ddi_soft_state_zalloc(ural_soft_state_p, instance) != DDI_SUCCESS) { RAL_DEBUG(RAL_DBG_MSG, "ural_attach(): " "unable to alloc soft_state_p\n"); return (DDI_FAILURE); } sc = ddi_get_soft_state(ural_soft_state_p, instance); ic = (ieee80211com_t *)&sc->sc_ic; sc->sc_dev = devinfo; if (usb_client_attach(devinfo, USBDRV_VERSION, 0) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural_attach(): usb_client_attach failed\n"); goto fail1; } if (usb_get_dev_data(devinfo, &sc->sc_udev, USB_PARSE_LVL_ALL, 0) != USB_SUCCESS) { sc->sc_udev = NULL; goto fail2; } mutex_init(&sc->sc_genlock, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->tx_lock, NULL, MUTEX_DRIVER, NULL); mutex_init(&sc->rx_lock, NULL, MUTEX_DRIVER, NULL); /* retrieve RT2570 rev. no */ sc->asic_rev = ural_read(sc, RAL_MAC_CSR0); /* retrieve MAC address and various other things from EEPROM */ ural_read_eeprom(sc); RAL_DEBUG(RAL_DBG_MSG, "ural: MAC/BBP RT2570 (rev 0x%02x), RF %s\n", sc->asic_rev, ural_get_rf(sc->rf_rev)); ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ ic->ic_state = IEEE80211_S_INIT; ic->ic_maxrssi = 63; ic->ic_set_shortslot = ural_update_slot; ic->ic_xmit = ural_send; /* set device capabilities */ ic->ic_caps = IEEE80211_C_TXPMGT | /* tx power management */ IEEE80211_C_SHPREAMBLE | /* short preamble supported */ IEEE80211_C_SHSLOT; /* short slot time supported */ ic->ic_caps |= IEEE80211_C_WPA; /* Support WPA/WPA2 */ #define IEEE80211_CHAN_A \ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) if (sc->rf_rev == RAL_RF_5222) { /* set supported .11a rates */ ic->ic_sup_rates[IEEE80211_MODE_11A] = ural_rateset_11a; /* set supported .11a channels */ for (i = 36; i <= 64; i += 4) { ic->ic_sup_channels[i].ich_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); ic->ic_sup_channels[i].ich_flags = IEEE80211_CHAN_A; } for (i = 100; i <= 140; i += 4) { ic->ic_sup_channels[i].ich_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); ic->ic_sup_channels[i].ich_flags = IEEE80211_CHAN_A; } for (i = 149; i <= 161; i += 4) { ic->ic_sup_channels[i].ich_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); ic->ic_sup_channels[i].ich_flags = IEEE80211_CHAN_A; } } /* set supported .11b and .11g rates */ ic->ic_sup_rates[IEEE80211_MODE_11B] = ural_rateset_11b; ic->ic_sup_rates[IEEE80211_MODE_11G] = ural_rateset_11g; /* set supported .11b and .11g channels (1 through 14) */ for (i = 1; i <= 14; i++) { ic->ic_sup_channels[i].ich_freq = ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); ic->ic_sup_channels[i].ich_flags = IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; } ieee80211_attach(ic); /* register WPA door */ ieee80211_register_door(ic, ddi_driver_name(devinfo), ddi_get_instance(devinfo)); /* override state transition machine */ sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = ural_newstate; ic->ic_watchdog = ural_watchdog; ieee80211_media_init(ic); ic->ic_def_txkey = 0; sc->sc_rcr = 0; sc->dwelltime = 300; sc->sc_flags &= ~RAL_FLAG_RUNNING; /* * Provide initial settings for the WiFi plugin; whenever this * information changes, we need to call mac_plugindata_update() */ wd.wd_opmode = ic->ic_opmode; wd.wd_secalloc = WIFI_SEC_NONE; IEEE80211_ADDR_COPY(wd.wd_bssid, ic->ic_bss->in_bssid); if ((macp = mac_alloc(MAC_VERSION)) == NULL) { RAL_DEBUG(RAL_DBG_ERR, "ural_attach(): " "MAC version mismatch\n"); goto fail3; } macp->m_type_ident = MAC_PLUGIN_IDENT_WIFI; macp->m_driver = sc; macp->m_dip = devinfo; macp->m_src_addr = ic->ic_macaddr; macp->m_callbacks = &ural_m_callbacks; macp->m_min_sdu = 0; macp->m_max_sdu = IEEE80211_MTU; macp->m_pdata = &wd; macp->m_pdata_size = sizeof (wd); err = mac_register(macp, &ic->ic_mach); mac_free(macp); if (err != 0) { RAL_DEBUG(RAL_DBG_ERR, "ural_attach(): " "mac_register() err %x\n", err); goto fail3; } if (usb_register_hotplug_cbs(devinfo, ural_offline, ural_online) != USB_SUCCESS) { RAL_DEBUG(RAL_DBG_ERR, "ural: ural_attach() failed to register events"); goto fail4; } /* * Create minor node of type DDI_NT_NET_WIFI */ (void) snprintf(strbuf, sizeof (strbuf), "%s%d", "ural", instance); err = ddi_create_minor_node(devinfo, strbuf, S_IFCHR, instance + 1, DDI_NT_NET_WIFI, 0); if (err != DDI_SUCCESS) RAL_DEBUG(RAL_DBG_ERR, "ddi_create_minor_node() failed\n"); /* * Notify link is down now */ mac_link_update(ic->ic_mach, LINK_STATE_DOWN); RAL_DEBUG(RAL_DBG_MSG, "ural_attach() done successfully.\n"); return (DDI_SUCCESS); fail4: (void) mac_unregister(ic->ic_mach); fail3: mutex_destroy(&sc->sc_genlock); mutex_destroy(&sc->tx_lock); mutex_destroy(&sc->rx_lock); fail2: usb_client_detach(sc->sc_dev, sc->sc_udev); fail1: ddi_soft_state_free(ural_soft_state_p, ddi_get_instance(devinfo)); return (DDI_FAILURE); } static int ural_detach(dev_info_t *devinfo, ddi_detach_cmd_t cmd) { struct ural_softc *sc; RAL_DEBUG(RAL_DBG_MSG, "ural_detach()\n"); sc = ddi_get_soft_state(ural_soft_state_p, ddi_get_instance(devinfo)); if (cmd != DDI_DETACH) return (DDI_FAILURE); ural_stop(sc); usb_unregister_hotplug_cbs(devinfo); /* * Unregister from the MAC layer subsystem */ if (mac_unregister(sc->sc_ic.ic_mach) != 0) return (DDI_FAILURE); /* * detach ieee80211 layer */ ieee80211_detach(&sc->sc_ic); mutex_destroy(&sc->sc_genlock); mutex_destroy(&sc->tx_lock); mutex_destroy(&sc->rx_lock); /* pipes will be close in ural_stop() */ usb_client_detach(devinfo, sc->sc_udev); sc->sc_udev = NULL; ddi_remove_minor_node(devinfo, NULL); ddi_soft_state_free(ural_soft_state_p, ddi_get_instance(devinfo)); return (DDI_SUCCESS); } int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } int _init(void) { int status; status = ddi_soft_state_init(&ural_soft_state_p, sizeof (struct ural_softc), 1); if (status != 0) return (status); mac_init_ops(&ural_dev_ops, "ural"); status = mod_install(&modlinkage); if (status != 0) { mac_fini_ops(&ural_dev_ops); ddi_soft_state_fini(&ural_soft_state_p); } return (status); } int _fini(void) { int status; status = mod_remove(&modlinkage); if (status == 0) { mac_fini_ops(&ural_dev_ops); ddi_soft_state_fini(&ural_soft_state_p); } return (status); }